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authorBjörn Gustavsson <[email protected]>2013-01-25 12:45:26 +0100
committerBjörn Gustavsson <[email protected]>2013-01-25 12:45:26 +0100
commit9afbb879f0397a650a7c403911a8cc30daa6dbbe (patch)
tree8e0d77907994cd3e6397b12349abd35a63375235 /lib/asn1/src
parent61f8a41388d95f6b8c0e2e5a06de586cecf184c6 (diff)
parentb06cbaf8cf12a9b6dcbdc6eab873a6212206ef58 (diff)
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Merge branch 'bjorn/asn1/further-cleanup/OTP-10588'
* bjorn/asn1/further-cleanup/OTP-10588: (28 commits) Don't export encode_disp/2 and decode_disp/2 in generated modules Remove vestiges of support for the {TypeName,Value} notation Simplify the functions for decoding lengths per,uper: Optimize decoding of the remaining data types per,uper: Optimize decoding of the remaining string types Share all code for dec_gen_prim/3 between per/uper back-ends per,uper: Optimize decoding of the string data types testPrimStrings: Test some constraints By default, encode BIT STRING to bitstrings Teach encode functions to accept a bitstring term for a BIT STRING Fix EXTERNAL 1990/1994 conversion information loss uper: Look up some SizeConstraints at compile-time Enumeration decoding: Don't emit a default clause if it cannot match Slightly optimize per encoding of large INTEGERs with constraints BER run-time: Refactor decoding of string data types Refactor decoding of BIT STRINGs Optimize encoding of ENUMERATED in per and uper Remove the unused run-time modules eldap: Remove calls to undocumented asn1rt* functions BER: Correct bug in 'undec_rest' ...
Diffstat (limited to 'lib/asn1/src')
-rw-r--r--lib/asn1/src/.gitignore2
-rw-r--r--lib/asn1/src/Makefile59
-rw-r--r--lib/asn1/src/asn1.app.src5
-rw-r--r--lib/asn1/src/asn1_records.hrl6
-rw-r--r--lib/asn1/src/asn1ct.erl150
-rw-r--r--lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl96
-rw-r--r--lib/asn1/src/asn1ct_constructed_per.erl131
-rw-r--r--lib/asn1/src/asn1ct_eval_ext.funcs1
-rw-r--r--lib/asn1/src/asn1ct_eval_per.funcs2
-rw-r--r--lib/asn1/src/asn1ct_eval_uper.funcs2
-rw-r--r--lib/asn1/src/asn1ct_func.erl105
-rw-r--r--lib/asn1/src/asn1ct_gen.erl143
-rw-r--r--lib/asn1/src/asn1ct_gen_ber_bin_v2.erl392
-rw-r--r--lib/asn1/src/asn1ct_gen_per.erl392
-rw-r--r--lib/asn1/src/asn1ct_gen_per_rt2ct.erl314
-rw-r--r--lib/asn1/src/asn1ct_imm.erl160
-rw-r--r--lib/asn1/src/asn1ct_value.erl45
-rw-r--r--lib/asn1/src/asn1rt_ber_bin.erl525
-rw-r--r--lib/asn1/src/asn1rt_ber_bin_v2.erl1992
-rw-r--r--lib/asn1/src/asn1rt_check.erl360
-rw-r--r--lib/asn1/src/asn1rt_nif.erl25
-rw-r--r--lib/asn1/src/asn1rt_per_bin_rt2ct.erl1587
-rw-r--r--lib/asn1/src/asn1rt_uper_bin.erl1487
-rw-r--r--lib/asn1/src/asn1rtt_ber.erl1561
-rw-r--r--lib/asn1/src/asn1rtt_check.erl276
-rw-r--r--lib/asn1/src/asn1rtt_ext.erl72
-rw-r--r--lib/asn1/src/asn1rtt_per.erl976
-rw-r--r--lib/asn1/src/asn1rtt_per_common.erl126
-rw-r--r--lib/asn1/src/asn1rtt_real_common.erl292
-rw-r--r--lib/asn1/src/asn1rtt_uper.erl1042
-rw-r--r--lib/asn1/src/prepare_templates.erl135
31 files changed, 5480 insertions, 6981 deletions
diff --git a/lib/asn1/src/.gitignore b/lib/asn1/src/.gitignore
new file mode 100644
index 0000000000..621f8f3623
--- /dev/null
+++ b/lib/asn1/src/.gitignore
@@ -0,0 +1,2 @@
+/asn1ct_rtt.erl
+/asn1ct_eval_*.erl
diff --git a/lib/asn1/src/Makefile b/lib/asn1/src/Makefile
index 4e61a6374b..faef9efd49 100644
--- a/lib/asn1/src/Makefile
+++ b/lib/asn1/src/Makefile
@@ -42,11 +42,17 @@ RELSYSDIR = $(RELEASE_PATH)/lib/asn1-$(VSN)
#
EBIN = ../ebin
+
+EVAL_CT_MODULES = asn1ct_eval_ext \
+ asn1ct_eval_per \
+ asn1ct_eval_uper
+
CT_MODULES= \
asn1ct \
asn1ct_check \
asn1_db \
asn1ct_pretty_format \
+ asn1ct_func \
asn1ct_gen \
asn1ct_gen_per \
asn1ct_gen_per_rt2ct \
@@ -55,27 +61,16 @@ CT_MODULES= \
asn1ct_constructed_ber_bin_v2 \
asn1ct_gen_ber_bin_v2 \
asn1ct_imm \
+ asn1ct_rtt \
asn1ct_value \
asn1ct_tok \
asn1ct_parser2 \
- asn1ct_table
+ asn1ct_table \
+ $(EVAL_CT_MODULES)
RT_MODULES= \
asn1rt \
- asn1rt_ber_bin \
- asn1rt_ber_bin_v2 \
- asn1rt_per_bin_rt2ct \
- asn1rt_uper_bin \
- asn1rt_check \
asn1rt_nif
-# asn1_sup \
-# asn1_app \
-# asn1_server
-
-
-# the rt module to use is defined in asn1_records.hrl
-# and must be updated when an incompatible change is done in the rt modules
-
MODULES= $(CT_MODULES) $(RT_MODULES)
@@ -138,6 +133,13 @@ info:
$(EBIN)/asn1ct.$(EMULATOR):asn1ct.erl
$(V_ERLC) -b$(EMULATOR) -o$(EBIN) $(ERL_COMPILE_FLAGS) -Dvsn=\"$(VSN)\" $<
+$(EBIN)/asn1ct_func.$(EMULATOR): asn1ct_func.erl
+ $(ERLC) -o$(EBIN) $(ERL_COMPILE_FLAGS) -I../rt_templates $<
+
+asn1ct_eval_%.erl: asn1ct_eval_%.funcs
+ erl -pa $(EBIN) -noshell -noinput \
+ -run prepare_templates gen_asn1ct_eval $< >$@
+
$(APP_TARGET): $(APP_SRC) ../vsn.mk
$(vsn_verbose)sed -e 's;%VSN%;$(VSN);' $< > $@
@@ -165,6 +167,34 @@ release_spec: opt
release_docs_spec:
#
+# Run-time library template files.
+#
+
+RT_TEMPLATES = asn1rtt_check \
+ asn1rtt_ext \
+ asn1rtt_per_common \
+ asn1rtt_real_common \
+ asn1rtt_ber \
+ asn1rtt_per \
+ asn1rtt_uper
+
+RT_TEMPLATES_ERL = $(RT_TEMPLATES:%=%.erl)
+RT_TEMPLATES_TARGET = $(RT_TEMPLATES:%=%.$(EMULATOR))
+
+asn1ct_rtt.erl: prepare_templates.$(EMULATOR) $(RT_TEMPLATES_TARGET)
+ erl -noshell -noinput -run prepare_templates gen_asn1ct_rtt \
+ $(RT_TEMPLATES_TARGET) >asn1ct_rtt.erl
+
+prepare_templates.$(EMULATOR): prepare_templates.erl
+ erlc prepare_templates.erl
+
+asn1rtt_%.$(EMULATOR): asn1rtt_%.erl
+ erlc +debug_info $<
+
+$(EVAL_CT_MODULES:%=%.erl): prepare_templates.$(EMULATOR) \
+ $(EBIN)/asn1ct_rtt.$(EMULATOR)
+
+#
# Dependencies
#
@@ -175,6 +205,7 @@ $(EBIN)/asn1ct_check.beam: asn1ct_check.erl asn1_records.hrl
$(EBIN)/asn1ct_constructed_ber_bin_v2.beam: asn1ct_constructed_ber_bin_v2.erl \
asn1_records.hrl
$(EBIN)/asn1ct_constructed_per.beam: asn1ct_constructed_per.erl asn1_records.hrl
+$(EBIN)/asn1ct_func.beam: asn1ct_func.erl
$(EBIN)/asn1ct_gen.beam: asn1ct_gen.erl asn1_records.hrl
$(EBIN)/asn1ct_gen_ber_bin_v2.beam: asn1ct_gen_ber_bin_v2.erl asn1_records.hrl
$(EBIN)/asn1ct_gen_per.beam: asn1ct_gen_per.erl asn1_records.hrl
diff --git a/lib/asn1/src/asn1.app.src b/lib/asn1/src/asn1.app.src
index 64b33a8a30..f2ee8deb75 100644
--- a/lib/asn1/src/asn1.app.src
+++ b/lib/asn1/src/asn1.app.src
@@ -3,11 +3,6 @@
{vsn, "%VSN%"},
{modules, [
asn1rt,
- asn1rt_per_bin_rt2ct,
- asn1rt_uper_bin,
- asn1rt_ber_bin,
- asn1rt_ber_bin_v2,
- asn1rt_check,
asn1rt_nif
]},
{registered, [
diff --git a/lib/asn1/src/asn1_records.hrl b/lib/asn1/src/asn1_records.hrl
index 59a9acb7e7..c229aa0759 100644
--- a/lib/asn1/src/asn1_records.hrl
+++ b/lib/asn1/src/asn1_records.hrl
@@ -24,12 +24,6 @@
-define(dbg(Fmt, Args), no_debug).
-endif.
--define('RT_BER_BIN',"asn1rt_ber_bin").
--define('RT_PER_BIN',"asn1rt_per_bin").
-
-%% Some encoding are common for BER and PER. Shared code are in RT_COMMON
--define('RT_COMMON',asn1rt_ber_bin).
-
-define('COMPLETE_ENCODE',1).
-define('TLV_DECODE',2).
diff --git a/lib/asn1/src/asn1ct.erl b/lib/asn1/src/asn1ct.erl
index 98877320a0..46602a3071 100644
--- a/lib/asn1/src/asn1ct.erl
+++ b/lib/asn1/src/asn1ct.erl
@@ -41,6 +41,7 @@
maybe_rename_function/3,latest_sindex/0,current_sindex/0,
set_current_sindex/1,next_sindex/0,maybe_saved_sindex/2,
parse_and_save/2,verbose/3,warning/3,warning/4,error/3]).
+-export([get_bit_string_format/0]).
-include("asn1_records.hrl").
-include_lib("stdlib/include/erl_compile.hrl").
@@ -86,10 +87,14 @@ compile(File) ->
compile(File,[]).
compile(File, Options0) when is_list(Options0) ->
- Options1 = translate_options(Options0),
- Options2 = includes(File,Options1),
- Includes = strip_includes(Options2),
- in_process(fun() -> compile_proc(File, Includes, Options2) end).
+ try translate_options(Options0) of
+ Options1 ->
+ Options2 = includes(File,Options1),
+ Includes = strip_includes(Options2),
+ in_process(fun() -> compile_proc(File, Includes, Options2) end)
+ catch throw:Error ->
+ Error
+ end.
compile_proc(File, Includes, Options) ->
case input_file_type(File, Includes) of
@@ -115,63 +120,18 @@ compile1(File,Options) when is_list(Options) ->
DbFile = outfile(Base,"asn1db",Options),
Includes = [I || {i,I} <- Options],
EncodingRule = get_rule(Options),
- asn1ct_table:new(asn1_functab),
Continue1 = scan(File,Options),
Continue2 = parse(Continue1,File,Options),
Continue3 = check(Continue2,File,OutFile,Includes,EncodingRule,
DbFile,Options,[]),
Continue4 = generate(Continue3,OutFile,EncodingRule,Options),
- asn1ct_table:delete(asn1_functab),
- Ret = compile_erl(Continue4,OutFile,Options),
- case inline(is_inline(Options),
- inline_output(Options,filename:rootname(File)),
- lists:concat([OutFile,".erl"]),Options) of
- false ->
- Ret;
- InlineRet ->
- InlineRet
- end.
+ compile_erl(Continue4, OutFile, Options).
%%****************************************************************************%%
%% functions dealing with compiling of several input files to one output file %%
%%****************************************************************************%%
-%%%
-%% inline/4
-%% merges the resulting erlang modules with
-%% the appropriate run-time modules so the resulting module contains all
-%% run-time asn1 functionality. Then compiles the resulting file to beam code.
-%% The merging is done by the igor module. If this function is used in older
-%% versions than R10B the igor module, part of user contribution syntax_tools,
-%% must be provided. It is possible to pass options for the ASN1 compiler
-%% Types:
-%% Name -> atom()
-%% Modules -> [filename()]
-%% Options -> [term()]
-%% filename() -> file:filename()
-inline(true,Name,Module,Options) ->
- RTmodule = get_runtime_mod(Options),
- IgorOptions = igorify_options(remove_asn_flags(Options)),
- IgorName = list_to_atom(filename:rootname(filename:basename(Name))),
-% io:format("*****~nName: ~p~nModules: ~p~nIgorOptions: ~p~n*****~n",
-% [IgorName,Modules++RTmodule,IgorOptions]),
- verbose("Inlining modules: ~p in ~p~n",[[Module]++RTmodule,IgorName],Options),
- case catch igor:merge(IgorName,[Module]++RTmodule,[{preprocess,true},{stubs,false},{backups,false}]++IgorOptions) of
- {'EXIT',{undef,Reason}} -> %% module igor first in R10B
- error("Module igor in syntax_tools must be available:~n~p~n",
- [Reason],Options),
- {error,'no_compilation'};
- {'EXIT',Reason} ->
- error("Merge by igor module failed due to ~p~n",[Reason],Options),
- {error,'no_compilation'};
- _ ->
-%% io:format("compiling output module: ~p~n",[generated_file(Name,IgorOptions)]),
- erl_compile(generated_file(Name,IgorOptions),Options)
- end;
-inline(_,_,_,_) ->
- false.
-
%% compile_set/3 merges and compiles a number of asn1 modules
%% specified in a .set.asn file to one .erl file.
compile_set(SetBase,Files,Options)
@@ -183,7 +143,6 @@ compile_set(SetBase,Files,Options)
DbFile = outfile(SetBase,"asn1db",Options),
Includes = [I || {i,I} <- Options],
EncodingRule = get_rule(Options),
- asn1ct_table:new(asn1_functab),
ScanRes = scan_set(Files,Options),
ParseRes = parse_set(ScanRes,Options),
Result =
@@ -208,7 +167,6 @@ compile_set(SetBase,Files,Options)
{error,{'unexpected error in scan/parse phase',
lists:map(fun(X)->element(3,X) end,Other)}}
end,
- asn1ct_table:delete(asn1_functab),
Result.
check_set(ParseRes,SetBase,OutFile,Includes,EncRule,DbFile,
@@ -222,15 +180,7 @@ check_set(ParseRes,SetBase,OutFile,Includes,EncRule,DbFile,
asn1ct_table:delete([renamed_defs, original_imports, automatic_tags]),
- Ret = compile_erl(Continue2,OutFile,Options),
- case inline(is_inline(Options),
- inline_output(Options,filename:rootname(OutFile)),
- lists:concat([OutFile,".erl"]),Options) of
- false ->
- Ret;
- InlineRet ->
- InlineRet
- end.
+ compile_erl(Continue2, OutFile, Options).
%% merge_modules/2 -> returns a module record where the typeorval lists are merged,
%% the exports lists are merged, the imports lists are merged when the
@@ -817,12 +767,9 @@ check({true,M},File,OutFile,Includes,EncodingRule,DbFile,Options,InputMods) ->
check({false,M},_,_,_,_,_,_,_) ->
{false,M}.
-generate({true,{M,_Module,GenTOrV}},OutFile,EncodingRule,Options) ->
+generate({true,{M,_Module,GenTOrV}}, OutFile, EncodingRule, Options) ->
debug_on(Options),
- case lists:member(compact_bit_string,Options) of
- true -> put(compact_bit_string,true);
- _ -> ok
- end,
+ setup_bit_string_format(Options),
put(encoding_options,Options),
asn1ct_table:new(check_functions),
@@ -844,8 +791,8 @@ generate({true,{M,_Module,GenTOrV}},OutFile,EncodingRule,Options) ->
ok
end,
debug_off(Options),
- put(compact_bit_string,false),
erase(encoding_options),
+ cleanup_bit_string_format(),
erase(tlv_format), % used in ber
erase(class_default_type),% used in ber
asn1ct_table:delete(check_functions),
@@ -863,6 +810,26 @@ generate({true,{M,_Module,GenTOrV}},OutFile,EncodingRule,Options) ->
generate({false,M},_,_,_) ->
{false,M}.
+setup_bit_string_format(Opts) ->
+ Format = case {lists:member(compact_bit_string, Opts),
+ lists:member(legacy_bit_string, Opts)} of
+ {false,false} -> bitstring;
+ {true,false} -> compact;
+ {false,true} -> legacy;
+ {true,true} ->
+ Message = "Contradicting options given: "
+ "compact_bit_string and legacy_bit_string",
+ exit({error,{asn1,Message}})
+ end,
+ put(bit_string_format, Format).
+
+cleanup_bit_string_format() ->
+ erase(bit_string_format).
+
+get_bit_string_format() ->
+ get(bit_string_format).
+
+
%% parse_and_save parses an asn1 spec and saves the unchecked parse
%% tree in a data base file.
%% Does not support multifile compilation files
@@ -1069,18 +1036,8 @@ get_rule(Options) ->
ber
end.
-get_runtime_mod(Options) ->
- RtMod1=
- case get_rule(Options) of
- per -> "asn1rt_per_bin_rt2ct.erl";
- ber -> ["asn1rt_ber_bin_v2.erl"];
- uper -> ["asn1rt_uper_bin.erl"]
- end,
- RtMod1++["asn1rt_check.erl","asn1rt.erl"].
-
%% translate_options(NewOptions) -> OldOptions
%% Translate the new option names to the old option name.
-%% FIXME. We should rewrite all code to handle the new option names.
translate_options([ber_bin|T]) ->
io:format("Warning: The option 'ber_bin' is now called 'ber'.\n"),
@@ -1097,6 +1054,12 @@ translate_options([nif|T]) ->
translate_options([optimize|T]) ->
io:format("Warning: The option 'optimize' is no longer needed.\n"),
translate_options(T);
+translate_options([inline|T]) ->
+ io:format("Warning: The option 'inline' is no longer needed.\n"),
+ translate_options(T);
+translate_options([{inline,_}|_]) ->
+ io:format("ERROR: The option {inline,OutputFilename} is no longer supported.\n"),
+ throw({error,{unsupported_option,inline}});
translate_options([H|T]) ->
[H|translate_options(T)];
translate_options([]) -> [].
@@ -1122,6 +1085,7 @@ remove_asn_flags(Options) ->
X /= get_rule(Options),
X /= optimize,
X /= compact_bit_string,
+ X /= legacy_bit_string,
X /= debug,
X /= asn1config,
X /= record_name_prefix].
@@ -1134,23 +1098,6 @@ debug_on(Options) ->
true
end.
-igorify_options(Options) ->
- case lists:keysearch(outdir,1,Options) of
- {value,{_,Dir}} ->
- Options1 = lists:keydelete(outdir,1,Options),
- [{dir,Dir}|Options1];
- _ ->
- Options
- end.
-
-generated_file(Name,Options) ->
- case lists:keysearch(dir,1,Options) of
- {value,{_,Dir}} ->
- filename:join([Dir,filename:basename(Name)]);
- _ ->
- Name
- end.
-
debug_off(_Options) ->
erase(asndebug).
@@ -1191,21 +1138,6 @@ option_add(Option, Options, Fun) ->
strip_includes(Includes) ->
[I || {i, I} <- Includes].
-is_inline(Options) ->
- case lists:member(inline,Options) of
- true -> true;
- _ ->
- lists:keymember(inline,1,Options)
- end.
-
-inline_output(Options,Default) ->
- case [X||{inline,X}<-Options] of
- [OutputName] ->
- OutputName;
- _ ->
- Default
- end.
-
%% compile(AbsFileName, Options)
%% Compile entry point for erl_compile.
diff --git a/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl b/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl
index 78cb9297d8..d5097e83c5 100644
--- a/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl
+++ b/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl
@@ -66,9 +66,9 @@ gen_encode_sequence(Erules,Typename,D) when is_record(D,type) ->
ValName =
case Typename of
['EXTERNAL'] ->
- emit([indent(4),
- "NewVal = asn1rt_check:transform_to_EXTERNAL1990(Val),",
- nl]),
+ emit([indent(4),"NewVal = ",
+ {call,ext,transform_to_EXTERNAL1990,["Val"]},
+ com,nl]),
"NewVal";
_ ->
"Val"
@@ -162,7 +162,8 @@ gen_encode_sequence(Erules,Typename,D) when is_record(D,type) ->
emit([nl," BytesSoFar = "]),
case SeqOrSet of
'SET' when (D#type.def)#'SET'.sorted == dynamic ->
- emit("asn1rt_check:dynamicsort_SET_components(["),
+ asn1ct_func:need({ber,dynamicsort_SET_components,1}),
+ emit("dynamicsort_SET_components(["),
mkvlist(asn1ct_name:all(encBytes)),
emit(["]),",nl]);
_ ->
@@ -177,8 +178,8 @@ gen_encode_sequence(Erules,Typename,D) when is_record(D,type) ->
mkvplus(AllLengths)
end,
emit([",",nl]),
- emit(["?RT_BER:encode_tags(TagIn, BytesSoFar, LenSoFar)."
- ,nl]).
+ call(encode_tags, ["TagIn","BytesSoFar","LenSoFar"]),
+ emit([".",nl]).
gen_decode_sequence(Erules,Typename,D) when is_record(D,type) ->
asn1ct_name:start(),
@@ -207,7 +208,8 @@ gen_decode_sequence(Erules,Typename,D) when is_record(D,type) ->
_ ->
emit([{curr,tlv}," = "])
end,
- emit(["?RT_BER:match_tags(",{prev,tlv},",TagIn), ",nl]),
+ call(match_tags, [{prev,tlv},"TagIn"]),
+ emit([com,nl]),
asn1ct_name:new(tlv),
asn1ct_name:new(v),
@@ -287,8 +289,9 @@ gen_decode_sequence(Erules,Typename,D) when is_record(D,type) ->
"', "]),
mkvlist(asn1ct_name:all(term)),
emit(["},",nl]),
- emit([" asn1rt_check:transform_to_EXTERNAL1994",
- "(OldFormat).",nl]);
+ emit([" ",
+ {call,ext,transform_to_EXTERNAL1994,
+ ["OldFormat"]},".",nl]);
_ ->
emit([" {'",RecordName,"', "]),
mkvlist(asn1ct_name:all(term)),
@@ -371,7 +374,8 @@ gen_decode_set(Erules,Typename,D) when is_record(D,type) ->
_ ->
emit([{curr,tlv}," = "])
end,
- emit(["?RT_BER:match_tags(",{prev,tlv},",TagIn), ",nl]),
+ call(match_tags, [{prev,tlv},"TagIn"]),
+ emit([com,nl]),
asn1ct_name:new(v),
@@ -492,7 +496,8 @@ gen_encode_sof(Erules,Typename,_InnerTypename,D) when is_record(D,type) ->
emit([" {EncBytes,EncLen} = 'enc_",asn1ct_gen:list2name(Typename),
"_components'(Val",Objfun,",[],0),",nl]),
- emit([" ?RT_BER:encode_tags(TagIn, EncBytes, EncLen).",nl,nl]),
+ emit([" ",{call,ber,encode_tags,["TagIn","EncBytes","EncLen"]},
+ ".",nl,nl]),
gen_encode_sof_components(Erules,Typename,SeqOrSetOf,Cont).
@@ -512,8 +517,8 @@ gen_decode_sof(Erules,TypeName,_InnerTypeName,D) when is_record(D,type) ->
emit([" %%-------------------------------------------------",nl]),
asn1ct_name:new(tlv),
- emit([{curr,tlv},
- " = ?RT_BER:match_tags(",{prev,tlv},",TagIn), ",nl]),
+ emit([{curr,tlv}," = ",
+ {call,ber,match_tags,[{prev,tlv},"TagIn"]},com,nl]),
asn1ct_name:new(v),
emit(["["]),
@@ -551,8 +556,9 @@ gen_encode_sof_components(Erules,Typename,SeqOrSetOf,Cont)
case catch lists:member(der,get(encoding_options)) of
true when SeqOrSetOf=='SET OF'->
+ asn1ct_func:need({ber,dynamicsort_SETOF,1}),
emit([indent(3),
- "{asn1rt_check:dynamicsort_SETOF(AccBytes),AccLen};",nl,nl]);
+ "{dynamicsort_SETOF(AccBytes),AccLen};",nl,nl]);
_ ->
emit([indent(3),"{lists:reverse(AccBytes),AccLen};",nl,nl])
end,
@@ -672,8 +678,9 @@ gen_dec_sequence_call2(Erules,TopType,{Root1,EList,Root2},_Ext,DecObjInf) ->
%% including the first mandatory element.
TagList = get_root2_taglist(Root2,[]),
emit({com,nl}),
- emit([{curr,tlv}," = ?RT_BER:skip_ExtensionAdditions(",
- {prev,tlv},", ",{asis,TagList},"),",nl]),
+ emit([{curr,tlv}," = ",
+ {call,ber,skip_ExtensionAdditions,
+ [{prev,tlv},{asis,TagList}]},com,nl]),
asn1ct_name:new(tlv),
gen_dec_sequence_call1(Erules,TopType,Root2,
length(Root1)+length(EList),noext,
@@ -805,8 +812,8 @@ gen_enc_choice1(Erules,TopType,_Tag,CompList,_Ext) ->
emit([" {EncBytes,EncLen} = case element(1,Val) of",nl]),
gen_enc_choice2(Erules,TopType,CompList),
emit([nl," end,",nl,nl]),
-
- emit(["?RT_BER:encode_tags(TagIn, EncBytes, EncLen).",nl]).
+ call(encode_tags, ["TagIn","EncBytes","EncLen"]),
+ emit([".",nl]).
gen_enc_choice2(Erules,TopType,[H1|T]) when is_record(H1,'ComponentType') ->
@@ -859,8 +866,8 @@ gen_enc_choice2(_Erules,_TopType,[]) ->
gen_dec_choice(Erules,TopType, _ChTag, CompList, Ext) ->
asn1ct_name:clear(),
asn1ct_name:new(tlv),
- emit([{curr,tlv},
- " = ?RT_BER:match_tags(",{prev,tlv},",TagIn), ",nl]),
+ emit([{curr,tlv}," = ",
+ {call,ber,match_tags,[{prev,tlv},"TagIn"]},com,nl]),
asn1ct_name:new(tlv),
asn1ct_name:new(v),
emit(["case (case ",{prev,tlv},
@@ -876,8 +883,8 @@ gen_dec_choice(Erules,TopType, _ChTag, CompList, Ext) ->
emit([indent(9),"exit({error,{asn1,{invalid_choice_tag,",
{curr,else},"}}})",nl]);
_ ->
- emit([indent(9),"{asn1_ExtAlt, ?RT_BER:encode(",{curr,else},
- asn1ct_gen:nif_parameter(),")}",nl])
+ emit([indent(9),"{asn1_ExtAlt,",
+ {call,ber,ber_encode,[{curr,else}]},"}",nl])
end,
emit([indent(3),"end",nl]),
asn1ct_name:new(tag),
@@ -1018,29 +1025,20 @@ gen_enc_line(Erules,TopType,Cname,Type,Element,Indent,OptOrMand,Assign,EncObj)
case OptOrMand of
mandatory ->
emit(["{",{curr,encBytes},",",{curr,encLen},
- "} = "]),
- emit(["?RT_BER:encode_open_type(",{curr,tmpBytes},
- ",",{asis,Tag},")"]);
+ "} = ",
+ {call,ber,encode_open_type,
+ [{curr,tmpBytes},{asis,Tag}]},nl]);
_ ->
-% emit(["{",{next,tmpBytes},", _} = "]),
emit(["{",{next,tmpBytes},",",{curr,tmpLen},
- "} = "]),
- emit(["?RT_BER:encode_open_type(",{curr,tmpBytes},
- ",",{asis,Tag},"),",nl]),
+ "} = ",
+ {call,ber,encode_open_type,
+ [{curr,tmpBytes},{asis,Tag}]},com,nl]),
emit(IndDeep),
emit(["{",{next,tmpBytes},", ",{curr,tmpLen},"}"])
end;
Err ->
throw({asn1,{'internal error',Err}})
end;
-%% {{#'ObjectClassFieldType'{type={objectfield,PrimFieldName1,
-%% PFNList}},_},
-%% {componentrelation,_,_}} ->
-%% %% this is when the dotted list in the FieldName has more
-%% %% than one element
-%% {_LeadingAttrName,Fun} = EncObj,
-%% emit(["?RT_BER:encode_open_type(",Fun,"(",{asis,PrimFieldName1},
-%% ", ",Element,", ",{asis,PFNList},"))"]);
_ ->
case WhatKind of
{primitive,bif} ->
@@ -1238,15 +1236,11 @@ gen_dec_call({typefield,_},_,_,_Cname,Type,BytesVar,Tag,_,_,false,_) ->
asn1ct_name:new(tmptlv),
{FirstPFName,RestPFName} =
-% asn1ct_gen:get_constraint(Type#type.constraint,
-% tableconstraint_info),
(Type#type.def)#'ObjectClassFieldType'.fieldname,
emit([nl,indent(6),"begin",nl]),
-% emit([indent(9),{curr,opendec}," = ?RT_BER:decode_open_type(",
- emit([indent(9),{curr,tmptlv}," = ?RT_BER:decode_open_type(",
- BytesVar,",",{asis,Tag},asn1ct_gen:nif_parameter(),"),",nl]),
-% emit([indent(9),"{",{curr,tmptlv},",_} = ?RT_BER:decode(",
-% {curr,opendec},"),",nl]),
+ emit([indent(9),{curr,tmptlv}," = ",
+ {call,ber,decode_open_type,
+ [BytesVar,{asis,Tag}]},com,nl]),
emit([indent(9),"case (catch ObjFun(",{asis,FirstPFName},
", ",{curr,tmptlv},", ",{asis,RestPFName},
@@ -1259,8 +1253,7 @@ gen_dec_call({typefield,_},_,_,_Cname,Type,BytesVar,Tag,_,_,false,_) ->
emit([indent(9),"end",nl,indent(6),"end",nl]),
[];
gen_dec_call({typefield,_},_,_,Cname,Type,BytesVar,Tag,_,_,_DecObjInf,OptOrMandComp) ->
- emit(["?RT_BER:decode_open_type(",BytesVar,",",{asis,Tag},
- asn1ct_gen:nif_parameter(),")"]),
+ call(decode_open_type, [BytesVar,{asis,Tag}]),
RefedFieldName =
% asn1ct_gen:get_constraint(Type#type.constraint,
% tableconstraint_info),
@@ -1268,8 +1261,7 @@ gen_dec_call({typefield,_},_,_,Cname,Type,BytesVar,Tag,_,_,_DecObjInf,OptOrMandC
[{Cname,RefedFieldName,asn1ct_gen:mk_var(asn1ct_name:curr(term)),
asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)),Tag,OptOrMandComp}];
gen_dec_call({objectfield,PrimFieldName,PFNList},_,_,Cname,_,BytesVar,Tag,_,_,_,OptOrMandComp) ->
- emit(["?RT_BER:decode_open_type(",BytesVar,",",{asis,Tag},
- asn1ct_gen:nif_parameter(),")"]),
+ call(decode_open_type, [BytesVar,{asis,Tag}]),
[{Cname,{PrimFieldName,PFNList},asn1ct_gen:mk_var(asn1ct_name:curr(term)),
asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)),Tag,OptOrMandComp}];
gen_dec_call(InnerType,Erules,TopType,Cname,Type,BytesVar,Tag,PrimOptOrMand,
@@ -1301,7 +1293,6 @@ gen_dec_call1({primitive,bif},InnerType,Erules,TopType,Cname,Type,BytesVar,
asn1ct:add_generated_refed_func({[Cname|TopType],undecoded,
Tag,Type}),
asn1ct:update_gen_state(namelist,Rest),
-% emit(["?RT_BER:match_tags(",BytesVar,",",{asis,Tag},")"]);
emit(["{'",asn1ct_gen:list2name([Cname|TopType]),"',",
BytesVar,"}"]);
{_,{fixedtypevaluefield,_,Btype}} ->
@@ -1320,7 +1311,6 @@ gen_dec_call1('ASN1_OPEN_TYPE',_InnerType,Erules,TopType,Cname,Type,BytesVar,
asn1ct:update_gen_state(namelist,Rest),
emit(["{'",asn1ct_gen:list2name([Cname|TopType]),"',",
BytesVar,"}"]);
-% emit(["?RT_BER:match_tags(",BytesVar,",",{asis,Tag},")"]);
{_,#'ObjectClassFieldType'{type=OpenType}} ->
?ASN1CT_GEN_BER:gen_dec_prim(Erules,#type{def=OpenType},
BytesVar,Tag,[],
@@ -1393,7 +1383,8 @@ gen_dec_call1(WhatKind,_,_Erules,TopType,Cname,Type,BytesVar,
parts,
[],Type}),
emit(["{'",asn1ct_gen:list2name([Cname|TopType]),"',"]),
- EmitDecFunCall("?RT_BER:match_tags"),
+ asn1ct_func:need({ber,match_tags,2}),
+ EmitDecFunCall("match_tags"),
emit("}");
_ ->
{DecFunName,_,_}=
@@ -1522,3 +1513,6 @@ value_match1(Value,[],Acc,Depth) ->
Acc ++ Value ++ lists:concat(lists:duplicate(Depth,")"));
value_match1(Value,[{VI,_}|VIs],Acc,Depth) ->
value_match1(Value,VIs,Acc++lists:concat(["element(",VI,","]),Depth+1).
+
+call(F, Args) ->
+ asn1ct_func:call(ber, F, Args).
diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl
index 27070be966..3c59c73108 100644
--- a/lib/asn1/src/asn1ct_constructed_per.erl
+++ b/lib/asn1/src/asn1ct_constructed_per.erl
@@ -32,6 +32,7 @@
%-compile(export_all).
-import(asn1ct_gen, [emit/1,demit/1,get_record_name_prefix/0]).
+-import(asn1ct_func, [call/3]).
%% ENCODE GENERATOR FOR SEQUENCE TYPE ** **********
@@ -66,9 +67,9 @@ gen_encode_constructed(Erule,Typename,D) when is_record(D,type) ->
end,
case Typename of
['EXTERNAL'] ->
- emit({{next,val},
- " = asn1rt_check:transform_to_EXTERNAL1990(",
- {curr,val},"),",nl}),
+ emit([{next,val}," = ",
+ {call,ext,transform_to_EXTERNAL1990,
+ [{curr,val}]},com,nl]),
asn1ct_name:new(val);
_ ->
ok
@@ -86,7 +87,8 @@ gen_encode_constructed(Erule,Typename,D) when is_record(D,type) ->
end,asn1ct_name:all(fixopt)),
emit({"{",{next,val},",Opt} = {",{curr,val},",[",FixOpts,"]},",nl});
{_,_,false} ->
- Fixoptcall = ",Opt} = ?RT_PER:fixoptionals(",
+ asn1ct_func:need({Erule,fixoptionals,3}),
+ Fixoptcall = ",Opt} = fixoptionals(",
emit({"{",{next,val},Fixoptcall,
{asis,Optionals},",",length(Optionals),
",",{curr,val},"),",nl})
@@ -121,8 +123,9 @@ gen_encode_constructed(Erule,Typename,D) when is_record(D,type) ->
lists:foreach(ExtGroupFun,ExtGroupPosLenList)
end,
asn1ct_name:new(tmpval),
- emit(["Extensions = ?RT_PER:fixextensions(",{asis,Ext},",",
- {curr,val},"),",nl]);
+ emit(["Extensions = ",
+ {call,Erule,fixextensions,[{asis,Ext},{curr,val}]},
+ com,nl]);
_ -> true
end,
EncObj =
@@ -191,10 +194,10 @@ gen_encode_constructed(Erule,Typename,D) when is_record(D,type) ->
MaybeComma1 =
case Ext of
{ext,_Pos,NumExt2} when NumExt2 > 0 ->
- emit({"?RT_PER:setext(Extensions =/= [])"}),
+ call(Erule, setext, ["Extensions =/= []"]),
", ";
{ext,_Pos,_} ->
- emit({"?RT_PER:setext(false)"}),
+ call(Erule, setext, ["false"]),
", ";
_ ->
""
@@ -383,9 +386,10 @@ gen_dec_constructed_imm_2(Typename, CompList,
"'"}),
mkvlist(asn1ct_name:all(term)),
emit({"},",nl}),
- emit({" ASN11994Format =",nl,
- " asn1rt_check:transform_to_EXTERNAL1994",
- "(OldFormat),",nl}),
+ emit([" ASN11994Format =",nl,
+ " ",
+ {call,ext,transform_to_EXTERNAL1994,
+ ["OldFormat"]},com,nl]),
emit(" {ASN11994Format,");
_ ->
emit(["{{'",RecordName,"'"]),
@@ -513,7 +517,7 @@ gen_encode_sof(Erule,Typename,SeqOrSetOf,D) when is_record(D,type) ->
_->
""
end,
- gen_encode_length(SizeConstraint, is_optimized(Erule)),
+ gen_encode_length(Erule, SizeConstraint),
emit({indent(3),"'enc_",asn1ct_gen:list2name(Typename),
"_components'(Val",ObjFun,", [])"}),
emit({nl,"].",nl}),
@@ -527,7 +531,7 @@ gen_encode_sof(Erule,Typename,SeqOrSetOf,D) when is_record(D,type) ->
%% Logic copied from asn1_per_bin_rt2ct:encode_constrained_number
-gen_encode_length({Lb,Ub},true) when Ub =< 65535, Lb >= 0 ->
+gen_encode_length(per, {Lb,Ub}) when Ub =< 65535, Lb >= 0 ->
Range = Ub - Lb + 1,
V2 = ["(length(Val) - ",Lb,")"],
Encode = if
@@ -554,12 +558,20 @@ gen_encode_length({Lb,Ub},true) when Ub =< 65535, Lb >= 0 ->
Range =< 65536 ->
{"[20,2,<<",V2,":16>>]"};
true ->
- {"?RT_PER:encode_length(",{asis,{Lb,Ub}},",length(Val))"}
+ {call,per,encode_length,
+ [{asis,{Lb,Ub}},"length(Val)"]}
end,
emit({nl,Encode,",",nl});
-gen_encode_length(SizeConstraint,_) ->
- emit({nl,indent(3),"?RT_PER:encode_length(",
- {asis,SizeConstraint},",length(Val)),",nl}).
+gen_encode_length(Erules, SizeConstraint) ->
+ emit([nl,indent(3),
+ case SizeConstraint of
+ undefined ->
+ {call,Erules,encode_length,["length(Val)"]};
+ _ ->
+ {call,Erules,encode_length,
+ [{asis,SizeConstraint},"length(Val)"]}
+ end,
+ com,nl]).
gen_decode_sof(Erules,Typename,SeqOrSetOf,D) when is_record(D,type) ->
asn1ct_name:start(),
@@ -1003,7 +1015,9 @@ gen_enc_line(Erule,TopType,Cname,Type,Element, _Pos,DynamicEnc,Ext) ->
case Ext of
{ext,_Ep1,_} ->
- emit(["?RT_PER:encode_open_type(dummy,?RT_PER:complete("]);
+ asn1ct_func:need({Erule,encode_open_type,1}),
+ asn1ct_func:need({Erule,complete,1}),
+ emit(["encode_open_type(complete("]);
_ -> true
end,
@@ -1015,7 +1029,9 @@ gen_enc_line(Erule,TopType,Cname,Type,Element, _Pos,DynamicEnc,Ext) ->
{notype,T} ->
throw({error,{notype,type_from_object,T}});
{Name,RestFieldNames} when is_atom(Name) ->
- emit({"?RT_PER:encode_open_type([],?RT_PER:complete(",nl}),
+ asn1ct_func:need({Erule,complete,1}),
+ asn1ct_func:need({Erule,encode_open_type,1}),
+ emit({"encode_open_type(complete(",nl}),
emit({" ",Fun,"(",{asis,Name},", ",
Element,", ",{asis,RestFieldNames},")))"});
Other ->
@@ -1025,8 +1041,10 @@ gen_enc_line(Erule,TopType,Cname,Type,Element, _Pos,DynamicEnc,Ext) ->
{objectfield,PrimFieldName1,PFNList} ->
case DynamicEnc of
{_LeadingAttrName,Fun} ->
- emit({"?RT_PER:encode_open_type([],"
- "?RT_PER:complete(",nl}),
+ asn1ct_func:need({Erule,complete,1}),
+ asn1ct_func:need({Erule,encode_open_type,1}),
+ emit({"encode_open_type("
+ "complete(",nl}),
emit({" ",Fun,"(",{asis,PrimFieldName1},
", ",Element,", ",{asis,PFNList},")))"})
end;
@@ -1105,8 +1123,9 @@ gen_dec_components_call(Erule,TopType,CL={Root1,ExtList,Root2},
NumExtsToSkip = ext_length(ExtList),
Finish =
fun(St) ->
- emit([{next,bytes},"= ?RT_PER:skipextensions(",{curr,bytes},",",
- NumExtsToSkip+1,",Extensions)"]),
+ emit([{next,bytes},"= "]),
+ call(Erule, skipextensions,
+ [{curr,bytes},NumExtsToSkip+1,"Extensions"]),
asn1ct_name:new(bytes),
St
end,
@@ -1276,8 +1295,8 @@ gen_dec_comp_call(Comp, Erule, TopType, Tpos, OptTable, DecInfObj,
St
end},
[{group,[{safe,Comment},{safe,Preamble},
- {safe,OptOrDef}|Lines]++
- [{safe,Postamble},{safe,AdvBuffer}]}].
+ OptOrDef|Lines]++
+ [Postamble,{safe,AdvBuffer}]}].
is_mandatory_predef_tab_c(noext, mandatory,
{"got objfun through args","ObjFun"}) ->
@@ -1499,7 +1518,6 @@ gen_dec_line_dec_inf(Comp, DecInfObj) ->
gen_dec_line_other(Erule, Atype, TopType, Comp) ->
#'ComponentType'{name=Cname,typespec=Type} = Comp,
CurrMod = get(currmod),
- Ctgenmod = asn1ct_gen:ct_gen_module(Erule),
case asn1ct_gen:type(Atype) of
#'Externaltypereference'{module=CurrMod,type=EType} ->
fun(BytesVar) ->
@@ -1513,16 +1531,16 @@ gen_dec_line_other(Erule, Atype, TopType, Comp) ->
{primitive,bif} ->
case Atype of
{fixedtypevaluefield,_,Btype} ->
- gen_dec_prim(Ctgenmod, Erule, Btype);
+ asn1ct_gen_per:gen_dec_imm(Erule, Btype);
_ ->
- gen_dec_prim(Ctgenmod, Erule, Type)
+ asn1ct_gen_per:gen_dec_imm(Erule, Type)
end;
'ASN1_OPEN_TYPE' ->
case Type#type.def of
#'ObjectClassFieldType'{type=OpenType} ->
- gen_dec_prim(Ctgenmod, Erule, #type{def=OpenType});
+ asn1ct_gen_per:gen_dec_imm(Erule, #type{def=OpenType});
_ ->
- gen_dec_prim(Ctgenmod, Erule, Type)
+ asn1ct_gen_per:gen_dec_imm(Erule, Type)
end;
#typereference{val=Dname} ->
fun(BytesVar) ->
@@ -1548,40 +1566,34 @@ gen_dec_line_other(Erule, Atype, TopType, Comp) ->
end
end.
-gen_dec_prim(Ctgenmod, Erule, Type) ->
- case asn1ct_gen_per:gen_dec_imm(Erule, Type) of
- no ->
- fun(BytesVar) ->
- Ctgenmod:gen_dec_prim(Erule, Type, BytesVar)
- end;
- Imm ->
- Imm
- end.
-
gen_enc_choice(Erule,TopType,CompList,Ext) ->
- gen_enc_choice_tag(CompList, [], Ext),
+ gen_enc_choice_tag(Erule, CompList, [], Ext),
emit({com,nl}),
emit({"case element(1,Val) of",nl}),
gen_enc_choice2(Erule,TopType, CompList, Ext),
emit({nl,"end"}).
-gen_enc_choice_tag({C1,C2},_,_) ->
+gen_enc_choice_tag(Erule, {C1,C2}, _, _) ->
N1 = get_name_list(C1),
N2 = get_name_list(C2),
- emit(["?RT_PER:set_choice(element(1,Val),",
- {asis,{N1,N2}},", ",{asis,{length(N1),length(N2)}},")"]);
-
-gen_enc_choice_tag({C1,C2,C3},_,_) ->
+ call(Erule,set_choice,
+ ["element(1, Val)",
+ {asis,{N1,N2}},
+ {asis,{length(N1),length(N2)}}]);
+gen_enc_choice_tag(Erule, {C1,C2,C3}, _, _) ->
N1 = get_name_list(C1),
N2 = get_name_list(C2),
N3 = get_name_list(C3),
Root = N1 ++ N3,
- emit(["?RT_PER:set_choice(element(1,Val),",
- {asis,{Root,N2}},", ",{asis,{length(Root),length(N2)}},")"]);
-gen_enc_choice_tag(C,_,_) ->
+ call(Erule,set_choice,
+ ["element(1, Val)",
+ {asis,{Root,N2}},
+ {asis,{length(Root),length(N2)}}]);
+gen_enc_choice_tag(Erule, C, _, _) ->
N = get_name_list(C),
- emit(["?RT_PER:set_choice(element(1,Val),",
- {asis,N},", ",{asis,length(N)},")"]).
+ call(Erule,set_choice,
+ ["element(1, Val)",
+ {asis,N},{asis,length(N)}]).
get_name_list(L) ->
get_name_list(L,[]).
@@ -1650,17 +1662,18 @@ gen_enc_choice2(_Erule,_,[], _, _) ->
true.
gen_dec_choice(Erule,TopType,CompList,{ext,Pos,NumExt}) ->
- emit({"{Ext,",{curr,bytes},"} = ?RT_PER:getbit(Bytes),",nl}),
+ emit(["{Ext,",{curr,bytes},"} = ",
+ {call,Erule,getbit,["Bytes"]},com,nl]),
asn1ct_name:new(bytes),
gen_dec_choice1(Erule,TopType,CompList,{ext,Pos,NumExt});
gen_dec_choice(Erule,TopType,CompList,noext) ->
gen_dec_choice1(Erule,TopType,CompList,noext).
gen_dec_choice1(Erule,TopType,CompList,noext) ->
- emit({"{Choice,",{curr,bytes},
- "} = ?RT_PER:getchoice(",{prev,bytes},",",
- length(CompList),", 0),",nl}),
- emit({"{Cname,{Val,NewBytes}} = case Choice of",nl}),
+ emit(["{Choice,",{curr,bytes},
+ "} = ",{call,Erule,getchoice,
+ [{prev,bytes},length(CompList),"0"]},com,nl,
+ "{Cname,{Val,NewBytes}} = case Choice of",nl]),
gen_dec_choice2(Erule,TopType,CompList,noext),
emit({nl,"end,",nl}),
emit({nl,"{{Cname,Val},NewBytes}"});
@@ -1671,9 +1684,9 @@ gen_dec_choice1(Erule,TopType,{RootList,ExtList,RootList2},Ext) ->
NewList = RootList ++ RootList2 ++ ExtList,
gen_dec_choice1(Erule,TopType, NewList, Ext);
gen_dec_choice1(Erule,TopType,CompList,{ext,ExtPos,ExtNum}) ->
- emit({"{Choice,",{curr,bytes},
- "} = ?RT_PER:getchoice(",{prev,bytes},",",
- length(CompList)-ExtNum,",Ext ),",nl}),
+ emit(["{Choice,",{curr,bytes},"} = ",
+ {call,Erule,getchoice,
+ [{prev,bytes},length(CompList)-ExtNum,"Ext"]},com,nl]),
emit({"{Cname,{Val,NewBytes}} = case Choice + Ext*",ExtPos-1," of",nl}),
gen_dec_choice2(Erule,TopType,CompList,{ext,ExtPos,ExtNum}),
Imm = asn1ct_imm:per_dec_open_type(is_aligned(Erule)),
diff --git a/lib/asn1/src/asn1ct_eval_ext.funcs b/lib/asn1/src/asn1ct_eval_ext.funcs
new file mode 100644
index 0000000000..5761901f89
--- /dev/null
+++ b/lib/asn1/src/asn1ct_eval_ext.funcs
@@ -0,0 +1 @@
+{ext,transform_to_EXTERNAL1994,1}.
diff --git a/lib/asn1/src/asn1ct_eval_per.funcs b/lib/asn1/src/asn1ct_eval_per.funcs
new file mode 100644
index 0000000000..a1ea5cd043
--- /dev/null
+++ b/lib/asn1/src/asn1ct_eval_per.funcs
@@ -0,0 +1,2 @@
+{per,encode_constrained_number,2}.
+{per,encode_small_number,1}.
diff --git a/lib/asn1/src/asn1ct_eval_uper.funcs b/lib/asn1/src/asn1ct_eval_uper.funcs
new file mode 100644
index 0000000000..884a486f40
--- /dev/null
+++ b/lib/asn1/src/asn1ct_eval_uper.funcs
@@ -0,0 +1,2 @@
+{uper,encode_constrained_number,2}.
+{uper,encode_small_number,1}.
diff --git a/lib/asn1/src/asn1ct_func.erl b/lib/asn1/src/asn1ct_func.erl
new file mode 100644
index 0000000000..2d221ca1b9
--- /dev/null
+++ b/lib/asn1/src/asn1ct_func.erl
@@ -0,0 +1,105 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+
+-module(asn1ct_func).
+-export([start_link/0,need/1,call/3,generate/1]).
+-export([init/1,handle_call/3,handle_cast/2,terminate/2]).
+
+start_link() ->
+ {ok,Pid} = gen_server:start_link(?MODULE, [], []),
+ put(?MODULE, Pid),
+ ok.
+
+call(M, F, Args) ->
+ MFA = {M,F,length(Args)},
+ need(MFA),
+ asn1ct_gen:emit([F,"(",call_args(Args, ""),")"]).
+
+need(MFA) ->
+ asn1ct_rtt:assert_defined(MFA),
+ cast({need,MFA}).
+
+generate(Fd) ->
+ req({generate,Fd}),
+ erase(?MODULE),
+ ok.
+
+req(Req) ->
+ gen_server:call(get(?MODULE), Req, infinity).
+
+cast(Req) ->
+ gen_server:cast(get(?MODULE), Req).
+
+%%% Internal functions.
+
+-record(st, {used}).
+
+init([]) ->
+ St = #st{used=gb_sets:empty()},
+ {ok,St}.
+
+handle_cast({need,MFA}, #st{used=Used0}=St) ->
+ case gb_sets:is_member(MFA, Used0) of
+ false ->
+ Used = pull_in_deps(gb_sets:singleton(MFA), Used0),
+ {noreply,St#st{used=Used}};
+ true ->
+ {noreply,St}
+ end.
+
+handle_call({generate,Fd}, _From, #st{used=Used}=St) ->
+ generate(Fd, Used),
+ {stop,normal,ok,St}.
+
+terminate(_, _) ->
+ ok.
+
+call_args([A|As], Sep) ->
+ [Sep,A|call_args(As, ", ")];
+call_args([], _) -> [].
+
+generate(Fd, Used0) ->
+ Used1 = gb_sets:to_list(Used0),
+ Used = sofs:set(Used1, [mfa]),
+ Code = sofs:relation(asn1ct_rtt:code(), [{mfa,code}]),
+ Funcs0 = sofs:image(Code, Used),
+ Funcs = sofs:to_external(Funcs0),
+ io:put_chars(Fd, Funcs).
+
+pull_in_deps(Ws0, Used0) ->
+ case gb_sets:is_empty(Ws0) of
+ true ->
+ Used0;
+ false ->
+ {MFA,Ws1} = gb_sets:take_smallest(Ws0),
+ Used = gb_sets:add(MFA, Used0),
+ Needs = asn1ct_rtt:dependencies(MFA),
+ Ws = update_worklist(Needs, Used, Ws1),
+ pull_in_deps(Ws, Used)
+ end.
+
+update_worklist([H|T], Used, Ws) ->
+ case gb_sets:is_member(H, Used) of
+ false ->
+ update_worklist(T, Used, gb_sets:add(H, Ws));
+ true ->
+ update_worklist(T, Used, Ws)
+ end;
+update_worklist([], _, Ws) -> Ws.
diff --git a/lib/asn1/src/asn1ct_gen.erl b/lib/asn1/src/asn1ct_gen.erl
index 57b12ce186..79f0593c37 100644
--- a/lib/asn1/src/asn1ct_gen.erl
+++ b/lib/asn1/src/asn1ct_gen.erl
@@ -46,7 +46,6 @@
un_hyphen_var/1]).
-export([gen_encode_constructed/4,
gen_decode_constructed/4]).
--export([nif_parameter/0]).
%% pgen(Outfile, Erules, Module, TypeOrVal, Options)
%% Generate Erlang module (.erl) and (.hrl) file corresponding to an ASN.1 module
@@ -78,6 +77,7 @@ pgen_module(OutFile,Erules,Module,
ErlFile = lists:concat([OutFile,".erl"]),
Fid = fopen(ErlFile,[write]),
put(gen_file_out,Fid),
+ asn1ct_func:start_link(),
gen_head(Erules,Module,HrlGenerated),
pgen_exports(Erules,Module,TypeOrVal),
pgen_dispatcher(Erules,Module,TypeOrVal),
@@ -86,6 +86,11 @@ pgen_module(OutFile,Erules,Module,
pgen_partial_incomplete_decode(Erules),
% gen_vars(asn1_db:mod_to_vars(Module)),
% gen_tag_table(AllTypes),
+ emit([nl,
+ "%%%",nl,
+ "%%% Run-time functions.",nl,
+ "%%%",nl]),
+ asn1ct_func:generate(Fid),
file:close(Fid),
asn1ct:verbose("--~p--~n",[{generated,ErlFile}],Options).
@@ -528,7 +533,8 @@ gen_part_decode_funcs({constructed,bif},TypeName,
{_Name,parts,Tag,_Type}) ->
emit([" case Data of",nl,
" L when is_list(L) ->",nl,
- " 'dec_",TypeName,"'(lists:map(fun(X)->element(1,?RT_BER:decode(X)) end,L),",{asis,Tag},");",nl,
+ " 'dec_",TypeName,"'(lists:map(fun(X) -> element(1, ",
+ {call,ber,ber_decode_erlang,["X"]},") end, L),",{asis,Tag},");",nl,
" _ ->",nl,
" [Res] = 'dec_",TypeName,"'([Data],",{asis,Tag},"),",nl,
" Res",nl,
@@ -802,7 +808,7 @@ gen_decode_constructed(Erules,Typename,InnerType,D) when is_record(D,typedef) ->
pgen_exports(Erules,_Module,{Types,Values,_,_,Objects,ObjectSets}) ->
- emit({"-export([encoding_rule/0]).",nl}),
+ emit(["-export([encoding_rule/0,bit_string_format/0]).",nl]),
case Types of
[] -> ok;
_ ->
@@ -912,23 +918,24 @@ gen_selected_decode_exports1([{FuncName,_}|Rest]) ->
gen_selected_decode_exports1(Rest).
pgen_dispatcher(Erules,_Module,{[],_Values,_,_,_Objects,_ObjectSets}) ->
- emit(["encoding_rule() ->",nl]),
- emit([{asis,Erules},".",nl,nl]);
+ gen_info_functions(Erules);
pgen_dispatcher(Erules,_Module,{Types,_Values,_,_,_Objects,_ObjectSets}) ->
- emit(["-export([encode/2,decode/2,encode_disp/2,decode_disp/2]).",nl,nl]),
- emit(["encoding_rule() ->",nl]),
- emit([" ",{asis,Erules},".",nl,nl]),
+ emit(["-export([encode/2,decode/2]).",nl,nl]),
+ gen_info_functions(Erules),
NoFinalPadding = lists:member(no_final_padding,get(encoding_options)),
{Call,BytesAsBinary} =
case Erules of
per ->
- {["?RT_PER:complete(encode_disp(Type,Data))"],"Bytes"};
+ asn1ct_func:need({Erules,complete,1}),
+ {["complete(encode_disp(Type, Data))"],"Bytes"};
ber ->
{"encode_disp(Type,Data)","iolist_to_binary(Bytes)"};
uper when NoFinalPadding == true ->
- {"?RT_PER:complete_NFP(encode_disp(Type,Data))","Bytes"};
+ asn1ct_func:need({Erules,complete_NFP,1}),
+ {"complete_NFP(encode_disp(Type, Data))","Bytes"};
uper ->
- {["?RT_PER:complete(encode_disp(Type,Data))"],"Bytes"}
+ asn1ct_func:need({Erules,complete,1}),
+ {["complete(encode_disp(Type, Data))"],"Bytes"}
end,
emit(["encode(Type,Data) ->",nl,
"case catch ",Call," of",nl,
@@ -952,12 +959,11 @@ pgen_dispatcher(Erules,_Module,{Types,_Values,_,_,_Objects,_ObjectSets}) ->
DecAnonymous =
case {Erules,Return_rest} of
{ber,false} ->
- io_lib:format("~s~s~s~n",
- ["element(1,?RT_BER:decode(Data",
- nif_parameter(),"))"]);
+ asn1ct_func:need({ber,ber_decode_nif,1}),
+ "element(1, ber_decode_nif(Data))";
{ber,true} ->
- emit(["{Data,Rest} = ?RT_BER:decode(Data0",
- nif_parameter(),"),",nl]),
+ asn1ct_func:need({ber,ber_decode_nif,1}),
+ emit(["{Data,Rest} = ber_decode_nif(Data0),",nl]),
"Data";
_ ->
"Data"
@@ -1020,6 +1026,11 @@ pgen_dispatcher(Erules,_Module,{Types,_Values,_,_,_Objects,_ObjectSets}) ->
emit([nl]),
emit({nl,nl}).
+gen_info_functions(Erules) ->
+ emit(["encoding_rule() -> ",
+ {asis,Erules},".",nl,nl,
+ "bit_string_format() -> ",
+ {asis,asn1ct:get_bit_string_format()},".",nl,nl]).
gen_decode_partial_incomplete(ber) ->
case {asn1ct:read_config_data(partial_incomplete_decode),
@@ -1042,16 +1053,16 @@ gen_decode_partial_incomplete(ber) ->
emit(["decode_partial_incomplete(Type,Data0,",
"Pattern) ->",nl]),
emit([" {Data,_RestBin} =",nl,
- " ?RT_BER:decode_primitive_",
- "incomplete(Pattern,Data0),",nl,
+ " ",{call,ber,decode_primitive_incomplete,
+ ["Pattern","Data0"]},com,nl,
" case catch decode_partial_inc_disp(Type,",
"Data) of",nl]),
EmitCaseClauses(),
emit([".",nl,nl]),
emit(["decode_part(Type, Data0) "
"when is_binary(Data0) ->",nl]),
- emit([" case catch decode_inc_disp(Type,element(1,"
- "?RT_BER:decode(Data0",nif_parameter(),"))) of",nl]),
+ emit([" case catch decode_inc_disp(Type,element(1, ",
+ {call,ber,ber_decode_nif,["Data0"]},")) of",nl]),
EmitCaseClauses(),
emit([";",nl]),
emit(["decode_part(Type, Data0) ->",nl]),
@@ -1095,9 +1106,6 @@ gen_partial_inc_dispatcher([],_) ->
emit(["decode_partial_inc_disp(Type,_Data) ->",nl,
" exit({error,{asn1,{undefined_type,Type}}}).",nl]).
-nif_parameter() ->
- ",nif".
-
gen_dispatcher([F1,F2|T],FuncName,Prefix,ExtraArg) ->
emit([FuncName,"('",F1,"',Data) -> '",Prefix,F1,"'(Data",ExtraArg,")",";",nl]),
gen_dispatcher([F2|T],FuncName,Prefix,ExtraArg);
@@ -1160,6 +1168,9 @@ emit({var,Variable}) ->
emit({asis,What}) ->
format(get(gen_file_out),"~w",[What]);
+emit({call,M,F,A}) ->
+ asn1ct_func:call(M, F, A);
+
emit(nl) ->
nl(get(gen_file_out));
@@ -1384,35 +1395,28 @@ gen_record(_,_,_,NumRecords) -> % skip CLASS etc for now.
gen_head(Erules,Mod,Hrl) ->
Options = get(encoding_options),
- {Rtmac,Rtmod} = case Erules of
- per ->
- emit({"%% Generated by the Erlang ASN.1 PER-"
- "compiler version, utilizing bit-syntax:",
- asn1ct:vsn(),nl}),
- {"RT_PER","asn1rt_per_bin_rt2ct"};
- ber ->
- emit({"%% Generated by the Erlang ASN.1 BER_V2-"
- "compiler version, utilizing bit-syntax:",
- asn1ct:vsn(),nl}),
- {"RT_BER","asn1rt_ber_bin_v2"};
- uper ->
- emit(["%% Generated by the Erlang ASN.1 UNALIGNED"
- " PER-compiler version, utilizing"
- " bit-syntax:",
- asn1ct:vsn(),nl]),
- {"RT_PER","asn1rt_uper_bin"}
+ case Erules of
+ per ->
+ emit(["%% Generated by the Erlang ASN.1 PER-"
+ "compiler version, utilizing bit-syntax:",
+ asn1ct:vsn(),nl]);
+ ber ->
+ emit(["%% Generated by the Erlang ASN.1 BER_V2-"
+ "compiler version, utilizing bit-syntax:",
+ asn1ct:vsn(),nl]);
+ uper ->
+ emit(["%% Generated by the Erlang ASN.1 UNALIGNED"
+ " PER-compiler version, utilizing bit-syntax:",
+ asn1ct:vsn(),nl])
end,
emit({"%% Purpose: encoder and decoder to the types in mod ",Mod,nl,nl}),
emit({"-module('",Mod,"').",nl}),
put(currmod,Mod),
emit({"-compile(nowarn_unused_vars).",nl}),
- case {Hrl,lists:member(inline,get(encoding_options))} of
- {0,_} -> true;
- {_,true} -> true;
- _ ->
- emit({"-include(\"",Mod,".hrl\").",nl})
+ case Hrl of
+ 0 -> ok;
+ _ -> emit({"-include(\"",Mod,".hrl\").",nl})
end,
- emit(["-define('",Rtmac,"',",Rtmod,").",nl]),
emit(["-asn1_info([{vsn,'",asn1ct:vsn(),"'},",nl,
" {module,'",Mod,"'},",nl,
" {options,",io_lib:format("~p",[Options]),"}]).",nl,nl]).
@@ -1493,50 +1497,41 @@ gen_check_call(TopType,Cname,Type,InnerType,WhatKind,DefaultValue,Element) ->
emit(["fun() -> true end ()"])
end.
-gen_prim_check_call(PrimType,DefaultValue,Element,Type) ->
+gen_prim_check_call(PrimType, Default, Element, Type) ->
case unify_if_string(PrimType) of
'BOOLEAN' ->
- emit({"asn1rt_check:check_bool(",DefaultValue,", ",
- Element,")"});
+ check_call(check_bool, [Default,Element]);
'INTEGER' ->
- NNL =
- case Type#type.def of
- {_,NamedNumberList} -> NamedNumberList;
- _ -> []
- end,
- emit({"asn1rt_check:check_int(",DefaultValue,", ",
- Element,", ",{asis,NNL},")"});
+ NNL = case Type#type.def of
+ {_,NamedNumberList} -> NamedNumberList;
+ _ -> []
+ end,
+ check_call(check_int, [Default,Element,{asis,NNL}]);
'BIT STRING' ->
{_,NBL} = Type#type.def,
- emit({"asn1rt_check:check_bitstring(",DefaultValue,", ",
- Element,", ",{asis,NBL},")"});
+ check_call(check_bitstring, [Default,Element,{asis,NBL}]);
'OCTET STRING' ->
- emit({"asn1rt_check:check_octetstring(",DefaultValue,", ",
- Element,")"});
+ check_call(check_octetstring, [Default,Element]);
'NULL' ->
- emit({"asn1rt_check:check_null(",DefaultValue,", ",
- Element,")"});
+ check_call(check_null, [Default,Element]);
'OBJECT IDENTIFIER' ->
- emit({"asn1rt_check:check_objectidentifier(",DefaultValue,
- ", ",Element,")"});
+ check_call(check_objectidentifier, [Default,Element]);
'RELATIVE-OID' ->
- emit({"asn1rt_check:check_objectidentifier(",DefaultValue,
- ", ",Element,")"});
+ check_call(check_objectidentifier, [Default,Element]);
'ObjectDescriptor' ->
- emit({"asn1rt_check:check_objectdescriptor(",DefaultValue,
- ", ",Element,")"});
+ check_call(check_objectdescriptor, [Default,Element]);
'REAL' ->
- emit({"asn1rt_check:check_real(",DefaultValue,
- ", ",Element,")"});
+ check_call(check_real, [Default,Element]);
'ENUMERATED' ->
{_,Enumerations} = Type#type.def,
- emit({"asn1rt_check:check_enum(",DefaultValue,
- ", ",Element,", ",{asis,Enumerations},")"});
+ check_call(check_enum, [Default,Element,{asis,Enumerations}]);
restrictedstring ->
- emit({"asn1rt_check:check_restrictedstring(",DefaultValue,
- ", ",Element,")"})
+ check_call(check_restrictedstring, [Default,Element])
end.
+check_call(F, Args) ->
+ asn1ct_func:call(check, F, Args).
+
%% lokahead_innertype/3 traverses Type and checks if check functions
%% have to be generated, i.e. for all constructed or referenced types.
lookahead_innertype(Name,'SEQUENCE',Type) ->
diff --git a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
index 664dfc2086..121f452da8 100644
--- a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
+++ b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
@@ -170,139 +170,84 @@ gen_encode_user(Erules,D) when is_record(D,typedef) ->
end.
gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
-
-%%% Constraint is currently not used for BER (except for BitString) and therefore replaced
-%%% with [] as a placeholder
BitStringConstraint = D#type.constraint,
- Constraint = [],
asn1ct_name:new(enumval),
- case D#type.def of
+ Type = case D#type.def of
+ 'OCTET STRING' -> restricted_string;
+ 'ObjectDescriptor'-> restricted_string;
+ 'NumericString' -> restricted_string;
+ 'TeletexString' -> restricted_string;
+ 'T61String' -> restricted_string;
+ 'VideotexString' -> restricted_string;
+ 'GraphicString' -> restricted_string;
+ 'VisibleString' -> restricted_string;
+ 'GeneralString' -> restricted_string;
+ 'PrintableString' -> restricted_string;
+ 'IA5String' -> restricted_string;
+ Other -> Other
+ end,
+ case Type of
+ restricted_string ->
+ call(encode_restricted_string, [Value,DoTag]);
'BOOLEAN' ->
- emit_encode_func('boolean',Value,DoTag);
+ call(encode_boolean, [Value,DoTag]);
'INTEGER' ->
- emit_encode_func('integer',Constraint,Value,DoTag);
+ call(encode_integer, [Value,DoTag]);
{'INTEGER',NamedNumberList} ->
- emit_encode_func('integer',Constraint,Value,
- NamedNumberList,DoTag);
+ call(encode_integer, [Value,{asis,NamedNumberList}, DoTag]);
{'ENUMERATED',NamedNumberList={_,_}} ->
-
emit(["case ",Value," of",nl]),
emit_enc_enumerated_cases(NamedNumberList,DoTag);
{'ENUMERATED',NamedNumberList} ->
-
emit(["case ",Value," of",nl]),
emit_enc_enumerated_cases(NamedNumberList,DoTag);
-
'REAL' ->
- emit_encode_func('real',Constraint,Value,DoTag);
-
+ emit([{call,ber,encode_tags,
+ [DoTag,{call,real_common,ber_encode_real,[Value]}]}]);
{'BIT STRING',NamedNumberList} ->
- emit_encode_func('bit_string',BitStringConstraint,Value,
- NamedNumberList,DoTag);
+ call(encode_bit_string,
+ [{asis,BitStringConstraint},Value,
+ {asis,NamedNumberList},DoTag]);
'ANY' ->
- emit_encode_func('open_type', Value,DoTag);
+ call(encode_open_type, [Value,DoTag]);
'NULL' ->
- emit_encode_func('null',Value,DoTag);
+ call(encode_null, [Value,DoTag]);
'OBJECT IDENTIFIER' ->
- emit_encode_func("object_identifier",Value,DoTag);
+ call(encode_object_identifier, [Value,DoTag]);
'RELATIVE-OID' ->
- emit_encode_func("relative_oid",Value,DoTag);
- 'ObjectDescriptor' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_ObjectDescriptor,DoTag);
- 'OCTET STRING' ->
- emit_encode_func('octet_string',Constraint,Value,DoTag);
- 'NumericString' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_NumericString,DoTag);
- TString when TString == 'TeletexString';
- TString == 'T61String' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_TeletexString,DoTag);
- 'VideotexString' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_VideotexString,DoTag);
- 'GraphicString' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_GraphicString,DoTag);
- 'VisibleString' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_VisibleString,DoTag);
- 'GeneralString' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_GeneralString,DoTag);
- 'PrintableString' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_PrintableString,DoTag);
- 'IA5String' ->
- emit_encode_func('restricted_string',Constraint,Value,
- ?T_IA5String,DoTag);
+ call(encode_relative_oid, [Value,DoTag]);
'UniversalString' ->
- emit_encode_func('universal_string',Constraint,Value,DoTag);
+ call(encode_universal_string, [Value,DoTag]);
'UTF8String' ->
- emit_encode_func('UTF8_string',Constraint,Value,DoTag);
+ call(encode_UTF8_string, [Value,DoTag]);
'BMPString' ->
- emit_encode_func('BMP_string',Constraint,Value,DoTag);
+ call(encode_BMP_string, [Value,DoTag]);
'UTCTime' ->
- emit_encode_func('utc_time',Constraint,Value,DoTag);
+ call(encode_utc_time, [Value,DoTag]);
'GeneralizedTime' ->
- emit_encode_func('generalized_time',Constraint,Value,DoTag);
+ call(encode_generalized_time, [Value,DoTag]);
'ASN1_OPEN_TYPE' ->
- emit_encode_func('open_type', Value,DoTag);
+ call(encode_open_type, [Value,DoTag]);
#'ObjectClassFieldType'{} ->
case asn1ct_gen:get_inner(D#type.def) of
{fixedtypevaluefield,_,InnerType} ->
gen_encode_prim(Erules,InnerType,DoTag,Value);
'ASN1_OPEN_TYPE' ->
- emit_encode_func('open_type', Value,DoTag);
- XX ->
- exit({'can not encode' ,XX})
- end;
- XX ->
- exit({'can not encode' ,XX})
+ call(encode_open_type, [Value,DoTag])
+ end
end.
-
-emit_encode_func(Name,Value,Tags) when is_atom(Name) ->
- emit_encode_func(atom_to_list(Name),Value,Tags);
-emit_encode_func(Name,Value,Tags) ->
- Fname = "?RT_BER:encode_" ++ Name,
- emit([Fname,"(",Value,", ",Tags,")"]).
-
-emit_encode_func(Name,Constraint,Value,Tags) when is_atom(Name) ->
- emit_encode_func(atom_to_list(Name),Constraint,Value,Tags);
-emit_encode_func(Name,Constraint,Value,Tags) ->
- Fname = "?RT_BER:encode_" ++ Name,
- emit([Fname,"(",{asis,Constraint},", ",Value,", ",Tags,")"]).
-
-emit_encode_func(Name,Constraint,Value,Asis,Tags) when is_atom(Name) ->
- emit_encode_func(atom_to_list(Name),Constraint,Value,Asis,Tags);
-emit_encode_func(Name,Constraint,Value,Asis,Tags) ->
- Fname = "?RT_BER:encode_" ++ Name,
- emit([Fname,"(",{asis,Constraint},", ",Value,
- ", ",{asis,Asis},
- ", ",Tags,")"]).
-
emit_enc_enumerated_cases({L1,L2}, Tags) ->
emit_enc_enumerated_cases(L1++L2, Tags, ext);
emit_enc_enumerated_cases(L, Tags) ->
emit_enc_enumerated_cases(L, Tags, noext).
-emit_enc_enumerated_cases([{EnumName,EnumVal},H2|T], Tags, Ext) ->
- emit([{asis,EnumName}," -> ?RT_BER:encode_enumerated(",EnumVal,",",Tags,");",nl]),
-%% emit(["'",{asis,EnumName},"' -> ?RT_BER:encode_enumerated(",EnumVal,",",Tags,");",nl]),
- emit_enc_enumerated_cases([H2|T], Tags, Ext);
-emit_enc_enumerated_cases([{EnumName,EnumVal}], Tags, Ext) ->
- emit([{asis,EnumName}," -> ?RT_BER:encode_enumerated(",EnumVal,",",Tags,")"]),
-%% emit(["'",{asis,EnumName},"' -> ?RT_BER:encode_enumerated(",EnumVal,",",Tags,")"]),
- case Ext of
- noext -> emit([";",nl]);
- ext ->
- emit([";",nl])
-%% emit([";",nl,"{asn1_enum,",{curr,enumval},"} -> ",
-%% "?RT_BER:encode_enumerated(",{curr,enumval},",",Tags,");",nl]),
-%% asn1ct_name:new(enumval)
- end,
+emit_enc_enumerated_cases([{EnumName,EnumVal}|T], Tags, Ext) ->
+ emit([{asis,EnumName}," -> ",
+ {call,ber,encode_enumerated,[EnumVal,Tags]},";",nl]),
+ emit_enc_enumerated_cases(T, Tags, Ext);
+emit_enc_enumerated_cases([], _Tags, _Ext) ->
+ %% FIXME: Should extension be handled?
emit([{curr,enumval}," -> exit({error,{asn1, {enumerated_not_in_range,",{curr, enumval},"}}})"]),
emit([nl,"end"]).
@@ -365,9 +310,10 @@ gen_decode_selected(Erules,Type,FuncName) ->
{value,{_,P}} -> P;
false -> exit({error,{internal,no_pattern_saved}})
end,
- emit([" case ?RT_BER:decode_selective(",{asis,Pattern},",Bin) of",nl,
+ emit([" case ",{call,ber,decode_selective,
+ [{asis,Pattern},"Bin"]}," of",nl,
" {ok,Bin2} when is_binary(Bin2) ->",nl,
- " {Tlv,_} = ?RT_BER:decode(Bin2",asn1ct_gen:nif_parameter(),"),",nl]),
+ " {Tlv,_} = ", {call,ber,ber_decode_nif,["Bin2"]},com,nl]),
emit("{ok,"),
gen_decode_selected_type(Erules,Type),
emit(["};",nl," Err -> exit({error,{selective_decode,Err}})",nl,
@@ -549,147 +495,123 @@ gen_dec_prim(Erules,Att,BytesVar,DoTag,TagIn,Form,OptOrMand) ->
_ -> ""
end,
NewTypeName = case Typename of
- 'ANY' -> 'ASN1_OPEN_TYPE';
- _ -> Typename
+ 'ANY' -> 'ASN1_OPEN_TYPE';
+ 'OCTET STRING' -> restricted_string;
+ 'NumericString' -> restricted_string;
+ 'TeletexString' -> restricted_string;
+ 'T61String' -> restricted_string;
+ 'VideotexString' -> restricted_string;
+ 'GraphicString' -> restricted_string;
+ 'VisibleString' -> restricted_string;
+ 'GeneralString' -> restricted_string;
+ 'PrintableString' -> restricted_string;
+ 'IA5String' -> restricted_string;
+ _ -> Typename
end,
-% DoLength =
case NewTypeName of
'BOOLEAN'->
- emit({"?RT_BER:decode_boolean(",BytesVar,","}),
- add_func({decode_boolean,2});
+ emit(["decode_boolean(",BytesVar,","]),
+ need(decode_boolean, 2);
'INTEGER' ->
- emit({"?RT_BER:decode_integer(",BytesVar,",",
- {asis,int_constr(SingleValue,ValueRange)},","}),
- add_func({decode_integer,3});
+ emit(["decode_integer(",BytesVar,",",
+ {asis,int_constr(SingleValue,ValueRange)},","]),
+ need(decode_integer, 3);
{'INTEGER',NamedNumberList} ->
- emit({"?RT_BER:decode_integer(",BytesVar,",",
+ emit(["decode_integer(",BytesVar,",",
{asis,int_constr(SingleValue,ValueRange)},",",
- {asis,NamedNumberList},","}),
- add_func({decode_integer,4});
+ {asis,NamedNumberList},","]),
+ need(decode_integer, 4);
{'ENUMERATED',NamedNumberList} ->
- emit({"?RT_BER:decode_enumerated(",BytesVar,",",
- {asis,Constraint},",",
- {asis,NamedNumberList},","}),
- add_func({decode_enumerated,4});
+ emit(["decode_enumerated(",BytesVar,",",
+ {asis,NamedNumberList},","]),
+ need(decode_enumerated, 3);
'REAL' ->
- emit({"?RT_BER:decode_real(",BytesVar,","}),
- add_func({decode_real,3});
- {'BIT STRING',NamedNumberList} ->
- case get(compact_bit_string) of
- true ->
- emit({"?RT_BER:decode_compact_bit_string(",
- BytesVar,",",{asis,Constraint},",",
- {asis,NamedNumberList},","}),
- add_func({decode_compact_bit_string,4});
- _ ->
- emit({"?RT_BER:decode_bit_string(",BytesVar,",",
- {asis,Constraint},",",
- {asis,NamedNumberList},","}),
- add_func({decode_bit_string,4})
- end;
+ ok;
+ {'BIT STRING',_NamedNumberList} ->
+ ok;
'NULL' ->
- emit({"?RT_BER:decode_null(",BytesVar,","}),
- add_func({decode_null,2});
+ emit(["decode_null(",BytesVar,","]),
+ need(decode_null, 2);
'OBJECT IDENTIFIER' ->
- emit({"?RT_BER:decode_object_identifier(",BytesVar,","}),
- add_func({decode_object_identifier,2});
+ emit(["decode_object_identifier(",BytesVar,","]),
+ need(decode_object_identifier, 2);
'RELATIVE-OID' ->
- emit({"?RT_BER:decode_relative_oid(",BytesVar,","}),
- add_func({decode_relative_oid,2});
+ emit(["decode_relative_oid(",BytesVar,","]),
+ need(decode_relative_oid, 2);
'ObjectDescriptor' ->
- emit({"?RT_BER:decode_restricted_string(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_ObjectDescriptor},","}),
- add_func({decode_restricted_string,4});
- 'OCTET STRING' ->
- emit({"?RT_BER:decode_octet_string",AsBin,"(",BytesVar,",",{asis,Constraint},","}),
- add_func({decode_octet_string,3});
- 'NumericString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_NumericString},","}),
- add_func({decode_restricted_string,4});
- TString when TString == 'TeletexString';
- TString == 'T61String' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_TeletexString},","}),
- add_func({decode_restricted_string,4});
- 'VideotexString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_VideotexString},","}),
- add_func({decode_restricted_string,4});
- 'GraphicString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_GraphicString},","}),
- add_func({decode_restricted_string,4});
- 'VisibleString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_VisibleString},","}),
- add_func({decode_restricted_string,4});
- 'GeneralString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_GeneralString},","}),
- add_func({decode_restricted_string,4});
- 'PrintableString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_PrintableString},","}),
- add_func({decode_restricted_string,4});
- 'IA5String' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_IA5String},","}),
- add_func({decode_restricted_string,4}) ;
+ emit(["decode_restricted_string(",
+ BytesVar,",",{asis,Constraint},","]),
+ need(decode_restricted_string, 3);
+ restricted_string ->
+ emit(["decode_restricted_string",AsBin,"(",BytesVar,","]),
+ case Constraint of
+ [] ->
+ need(decode_restricted_string, 2);
+ _ ->
+ emit([{asis,Constraint},","]),
+ need(decode_restricted_string, 3)
+ end;
'UniversalString' ->
- emit({"?RT_BER:decode_universal_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},","}),
- add_func({decode_universal_string,3});
+ emit(["decode_universal_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},","]),
+ need(decode_universal_string, 3);
'UTF8String' ->
- emit({"?RT_BER:decode_UTF8_string",AsBin,"(",
- BytesVar,","}),
- add_func({decode_UTF8_string,2});
+ emit(["decode_UTF8_string",AsBin,"(",
+ BytesVar,","]),
+ need(decode_UTF8_string, 2);
'BMPString' ->
- emit({"?RT_BER:decode_BMP_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},","}),
- add_func({decode_BMP_string,3});
+ emit(["decode_BMP_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},","]),
+ need(decode_BMP_string, 3);
'UTCTime' ->
- emit({"?RT_BER:decode_utc_time",AsBin,"(",
- BytesVar,",",{asis,Constraint},","}),
- add_func({decode_utc_time,3});
+ emit(["decode_utc_time",AsBin,"(",
+ BytesVar,",",{asis,Constraint},","]),
+ need(decode_utc_time, 3);
'GeneralizedTime' ->
- emit({"?RT_BER:decode_generalized_time",AsBin,"(",
- BytesVar,",",{asis,Constraint},","}),
- add_func({decode_generalized_time,3});
+ emit(["decode_generalized_time",AsBin,"(",
+ BytesVar,",",{asis,Constraint},","]),
+ need(decode_generalized_time, 3);
'ASN1_OPEN_TYPE' ->
- emit(["?RT_BER:decode_open_type_as_binary(",
+ emit(["decode_open_type_as_binary(",
BytesVar,","]),
- add_func({decode_open_type_as_binary,3});
+ need(decode_open_type_as_binary, 2);
#'ObjectClassFieldType'{} ->
case asn1ct_gen:get_inner(Att#type.def) of
{fixedtypevaluefield,_,InnerType} ->
gen_dec_prim(Erules,InnerType,BytesVar,DoTag,TagIn,Form,OptOrMand);
'ASN1_OPEN_TYPE' ->
- emit(["?RT_BER:decode_open_type_as_binary(",
+ emit(["decode_open_type_as_binary(",
BytesVar,","]),
- add_func({decode_open_type_as_binary,3});
+ need(decode_open_type_as_binary, 2);
Other ->
- exit({'can not decode' ,Other})
+ exit({'cannot decode',Other})
end;
Other ->
- exit({'can not decode' ,Other})
+ exit({'cannot decode',Other})
end,
- case {DoTag,NewTypeName} of
- {_,#'ObjectClassFieldType'{}} ->
+ TagStr = case DoTag of
+ {string,Tag1} -> Tag1;
+ _ when is_list(DoTag) -> {asis,DoTag}
+ end,
+ case NewTypeName of
+ {'BIT STRING',NNL} ->
+ gen_dec_bit_string(BytesVar, Constraint, NNL, TagStr);
+ 'REAL' ->
+ asn1ct_name:new(tmpbuf),
+ emit(["begin",nl,
+ {curr,tmpbuf}," = ",
+ {call,ber,match_tags,[BytesVar,TagStr]},com,nl,
+ {call,real_common,decode_real,[{curr,tmpbuf}]},nl,
+ "end",nl]);
+ #'ObjectClassFieldType'{} ->
case asn1ct_gen:get_inner(Att#type.def) of
'ASN1_OPEN_TYPE' ->
- emit([{asis,DoTag},asn1ct_gen:nif_parameter(),")"]);
+ emit([TagStr,")"]);
_ -> ok
end;
- {{string,TagStr},'ASN1_OPEN_TYPE'} ->
- emit([TagStr,asn1ct_gen:nif_parameter(),")"]);
- {_,'ASN1_OPEN_TYPE'} ->
- emit([{asis,DoTag},asn1ct_gen:nif_parameter(),")"]);
- {{string,TagStr},_} ->
- emit([TagStr,")"]);
- _ when is_list(DoTag) ->
- emit([{asis,DoTag},")"])
+ _ ->
+ emit([TagStr,")"])
end.
@@ -701,6 +623,23 @@ int_constr(SingleValue,[]) ->
SingleValue;
int_constr(SV,VR) ->
[SV,VR].
+
+gen_dec_bit_string(BytesVar, _Constraint, [_|_]=NNL, TagStr) ->
+ call(decode_named_bit_string,
+ [BytesVar,{asis,NNL},TagStr]);
+gen_dec_bit_string(BytesVar, Constraint, [], TagStr) ->
+ case asn1ct:get_bit_string_format() of
+ compact ->
+ call(decode_compact_bit_string,
+ [BytesVar,{asis,Constraint},TagStr]);
+ legacy ->
+ call(decode_legacy_bit_string,
+ [BytesVar,{asis,Constraint},TagStr]);
+ bitstring ->
+ call(decode_native_bit_string,
+ [BytesVar,{asis,Constraint},TagStr])
+ end.
+
%% Object code generating for encoding and decoding
%% ------------------------------------------------
@@ -1015,7 +954,7 @@ emit_tlv_format_function() ->
end.
emit_tlv_format_function1() ->
emit(["tlv_format(Bytes) when is_binary(Bytes) ->",nl,
- " {Tlv,_}=?RT_BER:decode(Bytes",asn1ct_gen:nif_parameter(),"),",nl,
+ " {Tlv,_} = ",{call,ber,ber_decode_nif,["Bytes"]},com,nl,
" Tlv;",nl,
"tlv_format(Bytes) ->",nl,
" Bytes.",nl]).
@@ -1449,38 +1388,22 @@ gen_objset_dec(_,ObjSetName,UniqueName,[{ObjName,Val,Fields}],
emit_default_getdec(ObjSetName,UniqueName),
emit([".",nl,nl]),
ok;
-gen_objset_dec(Erules,ObjSetName,_UniqueName,['EXTENSIONMARK'],_ClName,
+gen_objset_dec(_,ObjSetName,_UniqueName,['EXTENSIONMARK'],_ClName,
_ClFields,_NthObj) ->
emit(["'getdec_",ObjSetName,"'(_, _) ->",nl]),
emit([indent(2),"fun(_,Bytes, _RestPrimFieldName) ->",nl]),
- case Erules of
- ber ->
- emit([indent(4),"case Bytes of",nl,
- indent(6),"Bin when is_binary(Bin) -> ",nl,
- indent(8),"Bin;",nl,
- indent(6),"_ ->",nl,
- indent(8),"?RT_BER:encode(Bytes",driver_parameter(),")",nl,
- indent(4),"end",nl]);
- _ ->
- emit([indent(6),"Len = case Bytes of",nl,indent(9),
- "Bin when is_binary(Bin) -> size(Bin);",nl,indent(9),
- "_ -> length(Bytes)",nl,indent(6),"end,"]),
- emit([indent(4),"{Bytes,[],Len}",nl])
- end,
+ emit([indent(4),"case Bytes of",nl,
+ indent(6),"Bin when is_binary(Bin) -> ",nl,
+ indent(8),"Bin;",nl,
+ indent(6),"_ ->",nl,
+ indent(8),{call,ber,ber_encode,["Bytes"]},nl,
+ indent(4),"end",nl]),
emit([indent(2),"end.",nl,nl]),
ok;
gen_objset_dec(_,_,_,[],_,_,_) ->
ok.
-driver_parameter() ->
- Options = get(encoding_options),
- case {lists:member(driver,Options),lists:member(nif,Options)} of
- {true,_} -> ",nif";
- {_,true} -> ",nif";
- _ -> ",erlang"
- end.
-
emit_default_getdec(ObjSetName,UniqueName) ->
emit(["'getdec_",ObjSetName,"'(",{asis,UniqueName},", ErrV) ->",nl]),
emit([indent(2), "fun(C,V,_) -> exit({{component,C},{value,V},{unique_name_and_value,",{asis,UniqueName},", ErrV}}) end"]).
@@ -1771,9 +1694,6 @@ mk_object_val(0, Ack, Len) ->
mk_object_val(Val, Ack, Len) ->
mk_object_val(Val bsr 7, [((Val band 127) bor 128) | Ack], Len + 1).
-add_func(F={_Func,_Arity}) ->
- asn1ct_table:insert(asn1_functab, {F}).
-
%% For BER the ExtensionAdditionGroup notation has no impact on the encoding/decoding
%% and therefore we only filter away the ExtensionAdditionGroup start and end markers
extaddgroup2sequence(ExtList) when is_list(ExtList) ->
@@ -1785,4 +1705,8 @@ extaddgroup2sequence(ExtList) when is_list(ExtList) ->
true
end, ExtList).
+call(F, Args) ->
+ asn1ct_func:call(ber, F, Args).
+need(F, Arity) ->
+ asn1ct_func:need({ber,F,Arity}).
diff --git a/lib/asn1/src/asn1ct_gen_per.erl b/lib/asn1/src/asn1ct_gen_per.erl
index af19edb908..3b320065d2 100644
--- a/lib/asn1/src/asn1ct_gen_per.erl
+++ b/lib/asn1/src/asn1ct_gen_per.erl
@@ -35,6 +35,7 @@
-export([extaddgroup2sequence/1]).
-import(asn1ct_gen, [emit/1,demit/1]).
+-import(asn1ct_func, [call/3]).
%% pgen(Erules, Module, TypeOrVal)
%% Generate Erlang module (.erl) and (.hrl) file corresponding to an ASN.1 module
@@ -92,13 +93,6 @@ gen_encode_user(Erules,D) when is_record(D,typedef) ->
Typename = [D#typedef.name],
Def = D#typedef.typespec,
InnerType = asn1ct_gen:get_inner(Def#type.def),
- case InnerType of
- 'SET' -> true;
- 'SEQUENCE' -> true;
- _ ->
- emit({nl,"'enc_",asn1ct_gen:list2name(Typename),"'({'",asn1ct_gen:list2name(Typename),"',Val}) ->",nl}),
- emit({"'enc_",asn1ct_gen:list2name(Typename),"'(Val);",nl,nl})
- end,
emit({"'enc_",asn1ct_gen:list2name(Typename),"'(Val) ->",nl}),
case asn1ct_gen:type(InnerType) of
{primitive,bif} ->
@@ -134,107 +128,96 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
asn1ct_name:new(enumval),
case D#type.def of
'INTEGER' ->
- emit({"?RT_PER:encode_integer(", %fel
- {asis,asn1ct_imm:effective_constraint(integer,Constraint)},
- ",",Value,")"});
+ Args = [{asis,asn1ct_imm:effective_constraint(integer,Constraint)},
+ Value],
+ call(Erules, encode_integer, Args);
{'INTEGER',NamedNumberList} ->
- emit({"?RT_PER:encode_integer(",
- {asis,asn1ct_imm:effective_constraint(integer,Constraint)},
- ",",Value,",",
- {asis,NamedNumberList},")"});
+ Args = [{asis,asn1ct_imm:effective_constraint(integer,Constraint)},
+ Value,{asis,NamedNumberList}],
+ call(Erules, encode_integer, Args);
{'ENUMERATED',{Nlist1,Nlist2}} ->
- NewList = lists:concat([[{0,X}||{X,_} <- Nlist1],['EXT_MARK'],[{1,X}||{X,_} <- Nlist2]]),
- NewC = [{'ValueRange',{0,length(Nlist1)-1}}],
- case Erules of
- uper ->
- emit(["case ",Value," of",nl]);
- _ ->
- emit(["case (case ",Value," of {_,",{curr,enumval},"}-> ",
- {curr,enumval},";_->", Value," end) of",nl]),
- asn1ct_name:new(enumval)
- end,
-%% emit_enc_enumerated_cases(Erules,NewC, NewList++[{asn1_enum,length(Nlist1)-1}], 0);
- emit_enc_enumerated_cases(Erules,NewC, NewList, 0);
+ NewList = [{0,X} || {X,_} <- Nlist1] ++ ['EXT_MARK'] ++
+ [{1,X} || {X,_} <- Nlist2],
+ NewC = {0,length(Nlist1)-1},
+ emit(["case ",Value," of",nl]),
+ emit_enc_enumerated_cases(Erules, NewC, NewList, 0);
{'ENUMERATED',NamedNumberList} ->
- NewList = [X||{X,_} <- NamedNumberList],
- NewC = [{'ValueRange',{0,length(NewList)-1}}],
- case Erules of
- uper ->
- emit(["case ",Value," of",nl]);
- _ ->
- emit(["case (case ",Value," of {_,",{curr,enumval},
- "}->",{curr,enumval},";_->",Value," end) of",nl])
- end,
- emit_enc_enumerated_cases(Erules,NewC, NewList, 0);
+ NewList = [X || {X,_} <- NamedNumberList],
+ NewC = {0,length(NewList)-1},
+ emit(["case ",Value," of",nl]),
+ emit_enc_enumerated_cases(Erules, NewC, NewList, 0);
'REAL' ->
- emit({"?RT_PER:encode_real(",Value,")"});
+ emit_enc_real(Erules, Value);
{'BIT STRING',NamedNumberList} ->
- emit({"?RT_PER:encode_bit_string(",
- {asis,Constraint},",",Value,",",
- {asis,NamedNumberList},")"});
+ SizeConstr = get_constraint(Constraint, 'SizeConstraint'),
+ call(Erules, encode_bit_string,
+ [{asis,SizeConstr},Value,
+ {asis,NamedNumberList}]);
'NULL' ->
emit("[]");
'OBJECT IDENTIFIER' ->
- emit({"?RT_PER:encode_object_identifier(",Value,")"});
+ call(Erules, encode_object_identifier, [Value]);
'RELATIVE-OID' ->
- emit({"?RT_PER:encode_relative_oid(",Value,")"});
+ call(Erules, encode_relative_oid, [Value]);
'ObjectDescriptor' ->
- emit({"?RT_PER:encode_ObjectDescriptor(",{asis,Constraint},
- ",",Value,")"});
+ call(Erules, encode_ObjectDescriptor,
+ [{asis,Constraint},Value]);
'BOOLEAN' ->
- emit({"?RT_PER:encode_boolean(",Value,")"});
+ call(Erules, encode_boolean, [Value]);
'OCTET STRING' ->
- emit({"?RT_PER:encode_octet_string(",{asis,Constraint},",",Value,")"});
+ case get_constraint(Constraint, 'SizeConstraint') of
+ 0 ->
+ emit("[]");
+ no ->
+ call(Erules, encode_octet_string, [Value]);
+ C ->
+ call(Erules, encode_octet_string, [{asis,C},Value])
+ end;
'NumericString' ->
- emit({"?RT_PER:encode_NumericString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_NumericString, [{asis,Constraint},Value]);
TString when TString == 'TeletexString';
TString == 'T61String' ->
- emit({"?RT_PER:encode_TeletexString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_TeletexString, [{asis,Constraint},Value]);
'VideotexString' ->
- emit({"?RT_PER:encode_VideotexString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_VideotexString, [{asis,Constraint},Value]);
'UTCTime' ->
- emit({"?RT_PER:encode_VisibleString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_VisibleString, [{asis,Constraint},Value]);
'GeneralizedTime' ->
- emit({"?RT_PER:encode_VisibleString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_VisibleString, [{asis,Constraint},Value]);
'GraphicString' ->
- emit({"?RT_PER:encode_GraphicString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_GraphicString, [{asis,Constraint},Value]);
'VisibleString' ->
- emit({"?RT_PER:encode_VisibleString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_VisibleString, [{asis,Constraint},Value]);
'GeneralString' ->
- emit({"?RT_PER:encode_GeneralString(",{asis,Constraint},
- ",",Value,")"});
+ call(Erules, encode_GeneralString, [{asis,Constraint},Value]);
'PrintableString' ->
- emit({"?RT_PER:encode_PrintableString(",{asis,Constraint},
- ",",Value,")"});
+ call(Erules, encode_PrintableString, [{asis,Constraint},Value]);
'IA5String' ->
- emit({"?RT_PER:encode_IA5String(",{asis,Constraint},
- ",",Value,")"});
+ call(Erules, encode_IA5String, [{asis,Constraint},Value]);
'BMPString' ->
- emit({"?RT_PER:encode_BMPString(",{asis,Constraint},
- ",",Value,")"});
+ call(Erules, encode_BMPString, [{asis,Constraint},Value]);
'UniversalString' ->
- emit({"?RT_PER:encode_UniversalString(",{asis,Constraint},
- ",",Value,")"});
+ call(Erules, encode_UniversalString, [{asis,Constraint},Value]);
'UTF8String' ->
- emit({"?RT_PER:encode_UTF8String(",Value,")"});
+ call(Erules, encode_UTF8String, [Value]);
'ANY' ->
- emit(["?RT_PER:encode_open_type(", {asis,Constraint}, ",",
- Value, ")"]);
+ call(Erules, encode_open_type, [Value]);
'ASN1_OPEN_TYPE' ->
NewValue = case Constraint of
[#'Externaltypereference'{type=Tname}] ->
- io_lib:format(
- "?RT_PER:complete(enc_~s(~s))",[Tname,Value]);
+ asn1ct_func:need({Erules,complete,1}),
+ io_lib:format(
+ "complete(enc_~s(~s))",[Tname,Value]);
[#type{def=#'Externaltypereference'{type=Tname}}] ->
+ asn1ct_func:need({Erules,complete,1}),
io_lib:format(
- "?RT_PER:complete(enc_~s(~s))",
+ "complete(enc_~s(~s))",
[Tname,Value]);
_ -> Value
end,
- emit(["?RT_PER:encode_open_type(", {asis,Constraint}, ",",
- NewValue, ")"]);
+ call(Erules, encode_open_type, [NewValue]);
#'ObjectClassFieldType'{} ->
case asn1ct_gen:get_inner(D#type.def) of
{fixedtypevaluefield,_,InnerType} ->
@@ -246,46 +229,48 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
exit({asn1_error,nyi,XX})
end.
-
-emit_enc_enumerated_cases(Erule,C, [H], Count) ->
- emit_enc_enumerated_case(Erule,C, H, Count),
- case H of
- 'EXT_MARK' -> ok;
- _ ->
- emit([";",nl])
- end,
- emit([nl,"EnumVal -> exit({error,{asn1, {enumerated_not_in_range, EnumVal}}})"]),
- emit([nl,"end"]);
-emit_enc_enumerated_cases(Erule, C, ['EXT_MARK'|T], _Count) ->
- emit_enc_enumerated_cases(Erule, C, T, 0);
-emit_enc_enumerated_cases(Erule, C, [H1,H2|T], Count) ->
- emit_enc_enumerated_case(Erule, C, H1, Count),
+emit_enc_real(Erules, Real) ->
+ asn1ct_name:new(tmpval),
+ asn1ct_name:new(tmplen),
+ emit(["begin",nl,
+ "{",{curr,tmpval},com,{curr,tmplen},"} = ",
+ {call,real_common,encode_real,[Real]},com,nl,
+ "[",{call,Erules,encode_length,[{curr,tmplen}]},",",
+ {curr,tmpval},"]",nl,
+ "end"]).
+
+emit_enc_enumerated_cases(Erules, C, ['EXT_MARK'|T], _Count) ->
+ %% Reset enumeration counter.
+ emit_enc_enumerated_cases(Erules, C, T, 0);
+emit_enc_enumerated_cases(Erules, C, [H|T], Count) ->
+ emit_enc_enumerated_case(Erules, C, H, Count),
emit([";",nl]),
- emit_enc_enumerated_cases(Erule, C, [H2|T], Count+1).
+ emit_enc_enumerated_cases(Erules, C, T, Count+1);
+emit_enc_enumerated_cases(_Erules, _, [], _Count) ->
+ emit(["EnumVal -> "
+ "exit({error,{asn1,{enumerated_not_in_range, EnumVal}}})",nl,
+ "end"]).
+emit_enc_enumerated_case(Erules, C, {0,EnumName}, Count) ->
+ %% ENUMERATED with extensionmark; the value lies within then extension root
+ Enc = enc_ext_and_val(Erules, 0, encode_constrained_number, [C,Count]),
+ emit(["'",EnumName,"' -> ",{asis,Enc}]);
+emit_enc_enumerated_case(Erules, _C, {1,EnumName}, Count) ->
+ %% ENUMERATED with extensionmark; the value is higher than extension root
+ Enc = enc_ext_and_val(Erules, 1, encode_small_number, [Count]),
+ emit(["'",EnumName,"' -> ",{asis,Enc}]);
+emit_enc_enumerated_case(Erules, C, EnumName, Count) ->
+ %% ENUMERATED without extension
+ EvalMod = eval_module(Erules),
+ emit(["'",EnumName,"' -> ",
+ {asis,EvalMod:encode_constrained_number(C, Count)}]).
+
+enc_ext_and_val(per, E, F, Args) ->
+ [E|apply(asn1ct_eval_per, F, Args)];
+enc_ext_and_val(uper, E, F, Args) ->
+ <<E:1,(apply(asn1ct_eval_uper, F, Args))/bitstring>>.
-emit_enc_enumerated_case(uper,_C, {asn1_enum,High}, _) ->
- emit([
- "{asn1_enum,EnumV} when is_integer(EnumV), EnumV > ",High," -> ",
- "[<<1:1>>,?RT_PER:encode_small_number(EnumV)]"]);
-emit_enc_enumerated_case(_Per,_C, {asn1_enum,High}, _) ->
- emit([
- "{asn1_enum,EnumV} when is_integer(EnumV), EnumV > ",High," -> ",
- "[{bit,1},?RT_PER:encode_small_number(EnumV)]"]);
-emit_enc_enumerated_case(_Erule, _C, 'EXT_MARK', _Count) ->
- true;
-emit_enc_enumerated_case(uper,_C, {1,EnumName}, Count) ->
- emit(["'",EnumName,"' -> [<<1:1>>,?RT_PER:encode_small_number(",Count,")]"]);
-emit_enc_enumerated_case(_Per,_C, {1,EnumName}, Count) ->
- emit(["'",EnumName,"' -> [{bit,1},?RT_PER:encode_small_number(",Count,")]"]);
-emit_enc_enumerated_case(uper,C, {0,EnumName}, Count) ->
- emit(["'",EnumName,"' -> [<<0:1>>,?RT_PER:encode_integer(",{asis,C},", ",Count,")]"]);
-emit_enc_enumerated_case(_Per,C, {0,EnumName}, Count) ->
- emit(["'",EnumName,"' -> [{bit,0},?RT_PER:encode_integer(",{asis,C},", ",Count,")]"]);
-emit_enc_enumerated_case(_Erule, C, EnumName, Count) ->
- emit(["'",EnumName,"' -> ?RT_PER:encode_integer(",{asis,C},", ",Count,")"]).
-
get_constraint([{Key,V}], Key) ->
V;
get_constraint([], _) ->
@@ -446,7 +431,7 @@ gen_encode_field_call(ObjName,FieldName,Type) ->
Def = Type#typedef.typespec,
case Type#typedef.name of
{primitive,bif} ->
- gen_encode_prim(per,Def,"false",
+ gen_encode_prim(uper,Def,"false",
"Val"),
[];
{constructed,bif} ->
@@ -584,7 +569,7 @@ gen_decode_field_call(ObjName,FieldName,Bytes,Type) ->
Def = Type#typedef.typespec,
case Type#typedef.name of
{primitive,bif} ->
- gen_dec_prim(per,Def,Bytes),
+ gen_dec_prim(uper, Def, Bytes),
[];
{constructed,bif} ->
emit({" 'dec_",ObjName,'_',FieldName,
@@ -845,7 +830,7 @@ emit_inner_of_fun(TDef=#typedef{name={ExtMod,Name},typespec=Type},
case {ExtMod,Name} of
{primitive,bif} ->
emit(indent(12)),
- gen_encode_prim(per,Type,dotag,"Val"),
+ gen_encode_prim(uper,Type,dotag,"Val"),
{[],0};
{constructed,bif} ->
emit([indent(12),"'enc_",
@@ -988,7 +973,7 @@ emit_inner_of_decfun(#typedef{name={ExtName,Name},typespec=Type},
case {ExtName,Name} of
{primitive,bif} ->
emit(indent(12)),
- gen_dec_prim(per,Type,"Val"),
+ gen_dec_prim(uper, Type, "Val"),
0;
{constructed,bif} ->
emit({indent(12),"'dec_",
@@ -1006,7 +991,7 @@ emit_inner_of_decfun(Type,_) when is_record(Type,type) ->
case Type#type.def of
Def when is_atom(Def) ->
emit({indent(9),Def," ->",nl,indent(12)}),
- gen_dec_prim(erules,Type,"Val");
+ gen_dec_prim(uper, Type, "Val");
TRef when is_record(TRef,typereference) ->
T = TRef#typereference.val,
emit({indent(9),T," ->",nl,indent(12),"'dec_",T,"'(Val)"});
@@ -1104,6 +1089,31 @@ gen_dec_imm_1('ASN1_OPEN_TYPE', Constraint, Aligned) ->
imm_decode_open_type(Constraint, Aligned);
gen_dec_imm_1('ANY', _Constraint, Aligned) ->
imm_decode_open_type([], Aligned);
+gen_dec_imm_1({'BIT STRING',NNL}, Constr0, Aligned) ->
+ Constr = get_constraint(Constr0, 'SizeConstraint'),
+ Imm = asn1ct_imm:per_dec_raw_bitstring(Constr, Aligned),
+ case NNL of
+ [] ->
+ case asn1ct:get_bit_string_format() of
+ compact ->
+ gen_dec_bit_string(decode_compact_bit_string,
+ Imm);
+ legacy ->
+ gen_dec_bit_string(decode_legacy_bit_string,
+ Imm);
+ bitstring ->
+ gen_dec_copy_bitstring(Imm)
+ end;
+ [_|_] ->
+ D = fun(V, Buf) ->
+ As = [V,{asis,NNL}],
+ Call = {call,per_common,decode_named_bit_string,As},
+ emit(["{",Call,com,Buf,"}"])
+ end,
+ {call,D,Imm}
+ end;
+gen_dec_imm_1('NULL', _Constr, _Aligned) ->
+ {value,'NULL'};
gen_dec_imm_1('BOOLEAN', _Constr, _Aligned) ->
asn1ct_imm:per_dec_boolean();
gen_dec_imm_1({'ENUMERATED',{Base,Ext}}, _Constr, Aligned) ->
@@ -1116,97 +1126,84 @@ gen_dec_imm_1({'INTEGER',NamedNumberList}, Constraint, Aligned) ->
asn1ct_imm:per_dec_named_integer(Constraint,
NamedNumberList,
Aligned);
+gen_dec_imm_1('BMPString'=Type, Constraint, Aligned) ->
+ gen_dec_k_m_string(Type, Constraint, Aligned);
+gen_dec_imm_1('NumericString'=Type, Constraint, Aligned) ->
+ gen_dec_k_m_string(Type, Constraint, Aligned);
+gen_dec_imm_1('PrintableString'=Type, Constraint, Aligned) ->
+ gen_dec_k_m_string(Type, Constraint, Aligned);
+gen_dec_imm_1('VisibleString'=Type, Constraint, Aligned) ->
+ gen_dec_k_m_string(Type, Constraint, Aligned);
+gen_dec_imm_1('IA5String'=Type, Constraint, Aligned) ->
+ gen_dec_k_m_string(Type, Constraint, Aligned);
+gen_dec_imm_1('UniversalString'=Type, Constraint, Aligned) ->
+ gen_dec_k_m_string(Type, Constraint, Aligned);
+gen_dec_imm_1('UTCTime', Constraint, Aligned) ->
+ gen_dec_k_m_string('VisibleString', Constraint, Aligned);
+gen_dec_imm_1('GeneralizedTime', Constraint, Aligned) ->
+ gen_dec_k_m_string('VisibleString', Constraint, Aligned);
gen_dec_imm_1('OCTET STRING', Constraint, Aligned) ->
SzConstr = get_constraint(Constraint, 'SizeConstraint'),
Imm = asn1ct_imm:per_dec_octet_string(SzConstr, Aligned),
{convert,binary_to_list,Imm};
-gen_dec_imm_1(_, _, _) -> no.
-
-gen_dec_prim(Erule, Type, BytesVar) ->
- case gen_dec_imm(Erule, Type) of
- no ->
- gen_dec_prim_1(Erule, Type, BytesVar);
- Imm ->
- asn1ct_imm:dec_code_gen(Imm, BytesVar)
+gen_dec_imm_1('TeletexString', _Constraint, Aligned) ->
+ gen_dec_restricted_string(Aligned);
+gen_dec_imm_1('T61String', _Constraint, Aligned) ->
+ gen_dec_restricted_string(Aligned);
+gen_dec_imm_1('VideotexString', _Constraint, Aligned) ->
+ gen_dec_restricted_string(Aligned);
+gen_dec_imm_1('GraphicString', _Constraint, Aligned) ->
+ gen_dec_restricted_string(Aligned);
+gen_dec_imm_1('GeneralString', _Constraint, Aligned) ->
+ gen_dec_restricted_string(Aligned);
+gen_dec_imm_1('ObjectDescriptor', _Constraint, Aligned) ->
+ gen_dec_restricted_string(Aligned);
+gen_dec_imm_1('OBJECT IDENTIFIER', _Constraint, Aligned) ->
+ Dec = fun(V, Buf) ->
+ emit(["{",{call,per_common,decode_oid,[V]},com,
+ Buf,"}"])
+ end,
+ {call,Dec,gen_dec_restricted_string(Aligned)};
+gen_dec_imm_1('RELATIVE-OID', _Constraint, Aligned) ->
+ Dec = fun(V, Buf) ->
+ emit(["{",{call,per_common,decode_relative_oid,[V]},com,
+ Buf,"}"])
+ end,
+ {call,Dec,gen_dec_restricted_string(Aligned)};
+gen_dec_imm_1('UTF8String', _Constraint, Aligned) ->
+ asn1ct_imm:per_dec_restricted_string(Aligned);
+gen_dec_imm_1('REAL', _Constraint, Aligned) ->
+ asn1ct_imm:per_dec_real(Aligned);
+gen_dec_imm_1(#'ObjectClassFieldType'{}=TypeName, Constraint, Aligned) ->
+ case asn1ct_gen:get_inner(TypeName) of
+ {fixedtypevaluefield,_,InnerType} ->
+ gen_dec_imm_1(InnerType, Constraint, Aligned);
+ T ->
+ gen_dec_imm_1(T, Constraint, Aligned)
end.
-gen_dec_prim_1(Erule,
- #type{def=Typename,constraint=Constraint}=Att,
- BytesVar) ->
- case Typename of
- 'REAL' ->
- emit({"?RT_PER:decode_real(",BytesVar,")"});
-
- {'BIT STRING',NamedNumberList} ->
- case get(compact_bit_string) of
- true ->
- emit({"?RT_PER:decode_compact_bit_string(",
- BytesVar,",",{asis,Constraint},",",
- {asis,NamedNumberList},")"});
- _ ->
- emit({"?RT_PER:decode_bit_string(",BytesVar,",",
- {asis,Constraint},",",
- {asis,NamedNumberList},")"})
- end;
- 'NULL' ->
- emit({"{'NULL',",BytesVar,"}"});
- 'OBJECT IDENTIFIER' ->
- emit({"?RT_PER:decode_object_identifier(",
- BytesVar,")"});
- 'RELATIVE-OID' ->
- emit({"?RT_PER:decode_relative_oid(",
- BytesVar,")"});
- 'ObjectDescriptor' ->
- emit({"?RT_PER:decode_ObjectDescriptor(",
- BytesVar,")"});
- 'NumericString' ->
- emit({"?RT_PER:decode_NumericString(",BytesVar,",",
- {asis,Constraint},")"});
- TString when TString == 'TeletexString';
- TString == 'T61String' ->
- emit({"?RT_PER:decode_TeletexString(",BytesVar,",",
- {asis,Constraint},")"});
- 'VideotexString' ->
- emit({"?RT_PER:decode_VideotexString(",BytesVar,",",
- {asis,Constraint},")"});
- 'UTCTime' ->
- emit({"?RT_PER:decode_VisibleString(",BytesVar,",",
- {asis,Constraint},")"});
- 'GeneralizedTime' ->
- emit({"?RT_PER:decode_VisibleString(",BytesVar,",",
- {asis,Constraint},")"});
- 'GraphicString' ->
- emit({"?RT_PER:decode_GraphicString(",BytesVar,",",
- {asis,Constraint},")"});
- 'VisibleString' ->
- emit({"?RT_PER:decode_VisibleString(",BytesVar,",",
- {asis,Constraint},")"});
- 'GeneralString' ->
- emit({"?RT_PER:decode_GeneralString(",BytesVar,",",
- {asis,Constraint},")"});
- 'PrintableString' ->
- emit({"?RT_PER:decode_PrintableString(",BytesVar,",",{asis,Constraint},")"});
- 'IA5String' ->
- emit({"?RT_PER:decode_IA5String(",BytesVar,",",{asis,Constraint},")"});
- 'BMPString' ->
- emit({"?RT_PER:decode_BMPString(",BytesVar,",",
- {asis,Constraint},")"});
- 'UniversalString' ->
- emit({"?RT_PER:decode_UniversalString(",BytesVar,
- ",",{asis,Constraint},")"});
- 'UTF8String' ->
- emit({"?RT_PER:decode_UTF8String(",BytesVar,")"});
- #'ObjectClassFieldType'{} ->
- case asn1ct_gen:get_inner(Typename) of
- {fixedtypevaluefield,_,InnerType} ->
- gen_dec_prim(Erule, InnerType, BytesVar);
- T ->
- gen_dec_prim(Erule, Att#type{def=T}, BytesVar)
- end;
- Other ->
- exit({'cant decode' ,Other})
- end.
+gen_dec_bit_string(F, Imm) ->
+ D = fun(V, Buf) ->
+ emit(["{",{call,per_common,F,[V]},com,Buf,"}"])
+ end,
+ {call,D,Imm}.
+gen_dec_copy_bitstring(Imm) ->
+ D = fun(V, Buf) ->
+ emit(["{list_to_bitstring([",V,"]),",Buf,"}"])
+ end,
+ {call,D,Imm}.
+
+gen_dec_k_m_string(Type, Constraint, Aligned) ->
+ asn1ct_imm:per_dec_k_m_string(Type, Constraint, Aligned).
+
+gen_dec_restricted_string(Aligned) ->
+ Imm = asn1ct_imm:per_dec_restricted_string(Aligned),
+ {convert,binary_to_list,Imm}.
+
+gen_dec_prim(Erule, Type, BytesVar) ->
+ Imm = gen_dec_imm(Erule, Type),
+ asn1ct_imm:dec_code_gen(Imm, BytesVar).
is_already_generated(Operation,Name) ->
case get(class_default_type) of
@@ -1280,3 +1277,6 @@ imm_dec_open_type_1(Type, Aligned) ->
"end"])
end,
{call,D,asn1ct_imm:per_dec_open_type(Aligned)}.
+
+eval_module(per) -> asn1ct_eval_per;
+eval_module(uper) -> asn1ct_eval_uper.
diff --git a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl
index 4f4563833f..8dd0297f89 100644
--- a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl
+++ b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl
@@ -34,6 +34,7 @@
-import(asn1ct_gen, [emit/1,demit/1]).
-import(asn1ct_gen_per, [is_already_generated/2,more_genfields/1,
get_class_fields/1,get_object_field/2]).
+-import(asn1ct_func, [call/3]).
%% pgen(Erules, Module, TypeOrVal)
%% Generate Erlang module (.erl) and (.hrl) file corresponding to an ASN.1 module
@@ -82,13 +83,6 @@ gen_encode_user(Erules,D) when is_record(D,typedef) ->
Typename = [D#typedef.name],
Def = D#typedef.typespec,
InnerType = asn1ct_gen:get_inner(Def#type.def),
- case InnerType of
- 'SET' -> true;
- 'SEQUENCE' -> true;
- _ ->
- emit({nl,"'enc_",asn1ct_gen:list2name(Typename),"'({'",asn1ct_gen:list2name(Typename),"',Val}) ->",nl}),
- emit({"'enc_",asn1ct_gen:list2name(Typename),"'(Val);",nl,nl})
- end,
emit({"'enc_",asn1ct_gen:list2name(Typename),"'(Val) ->",nl}),
case asn1ct_gen:type(InnerType) of
{primitive,bif} ->
@@ -137,41 +131,30 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
emit([" %%INTEGER with effective constraint: ",
{asis,EffectiveConstr},nl]),
emit_enc_integer_NNL(Erules,EffectiveConstr,Value,NamedNumberList);
- {'ENUMERATED',{Nlist1,Nlist2}} ->
- NewList = lists:append([[{0,X}||{X,_} <- Nlist1],['EXT_MARK'],[{1,X}||{X,_} <- Nlist2]]),
- NewC = [{'ValueRange',{0,length(Nlist1)-1}}],
- emit(["case ",Value," of",nl]),
-%% emit_enc_enumerated_cases(Erules,NewC, NewList++[{asn1_enum,length(Nlist1)-1}], 0);
- emit_enc_enumerated_cases(Erules,NewC, NewList, 0);
- {'ENUMERATED',NamedNumberList} ->
- NewList = [X||{X,_} <- NamedNumberList],
- NewC = effective_constraint(integer,
- [{'ValueRange',
- {0,length(NewList)-1}}]),
- NewVal = enc_enum_cases(Value,NewList),
- emit_enc_integer(Erules,NewC,NewVal);
-
+ {'ENUMERATED',_} ->
+ asn1ct_gen_per:gen_encode_prim(Erules, D, DoTag, Value);
'REAL' ->
- emit({"?RT_PER:encode_real(",Value,")"});
+ emit_enc_real(Erules, Value);
{'BIT STRING',NamedNumberList} ->
EffectiveC = effective_constraint(bitstring,Constraint),
case EffectiveC of
- 0 -> emit({"[]"});
+ 0 ->
+ emit({"[]"});
_ ->
- emit({"?RT_PER:encode_bit_string(",
- {asis,EffectiveC},",",Value,",",
- {asis,NamedNumberList},")"})
+ call(Erules, encode_bit_string,
+ [{asis,EffectiveC},Value,
+ {asis,NamedNumberList}])
end;
'NULL' ->
emit("[]");
'OBJECT IDENTIFIER' ->
- emit({"?RT_PER:encode_object_identifier(",Value,")"});
+ call(Erules, encode_object_identifier, [Value]);
'RELATIVE-OID' ->
- emit({"?RT_PER:encode_relative_oid(",Value,")"});
+ call(Erules, encode_relative_oid, [Value]);
'ObjectDescriptor' ->
- emit({"?RT_PER:encode_ObjectDescriptor(",{asis,Constraint},
- ",",Value,")"});
+ call(Erules, encode_ObjectDescriptor,
+ [{asis,Constraint},Value]);
'BOOLEAN' ->
emit({"case ",Value," of",nl,
" true -> [1];",nl,
@@ -185,19 +168,19 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
emit_enc_known_multiplier_string('NumericString',Constraint,Value);
TString when TString == 'TeletexString';
TString == 'T61String' ->
- emit({"?RT_PER:encode_TeletexString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_TeletexString, [{asis,Constraint},Value]);
'VideotexString' ->
- emit({"?RT_PER:encode_VideotexString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_VideotexString, [{asis,Constraint},Value]);
'UTCTime' ->
emit_enc_known_multiplier_string('VisibleString',Constraint,Value);
'GeneralizedTime' ->
emit_enc_known_multiplier_string('VisibleString',Constraint,Value);
'GraphicString' ->
- emit({"?RT_PER:encode_GraphicString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_GraphicString, [{asis,Constraint},Value]);
'VisibleString' ->
emit_enc_known_multiplier_string('VisibleString',Constraint,Value);
'GeneralString' ->
- emit({"?RT_PER:encode_GeneralString(",{asis,Constraint},",",Value,")"});
+ call(Erules, encode_GeneralString, [{asis,Constraint},Value]);
'PrintableString' ->
emit_enc_known_multiplier_string('PrintableString',Constraint,Value);
'IA5String' ->
@@ -207,23 +190,23 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
'UniversalString' ->
emit_enc_known_multiplier_string('UniversalString',Constraint,Value);
'UTF8String' ->
- emit({"?RT_PER:encode_UTF8String(",Value,")"});
+ call(Erules, encode_UTF8String, [Value]);
'ANY' ->
- emit(["?RT_PER:encode_open_type(", {asis,Constraint}, ",",
- Value, ")"]);
+ call(Erules, encode_open_type, [Value]);
'ASN1_OPEN_TYPE' ->
NewValue = case Constraint of
[#'Externaltypereference'{type=Tname}] ->
- io_lib:format(
- "?RT_PER:complete(enc_~s(~s))",[Tname,Value]);
+ asn1ct_func:need({Erules,complete,1}),
+ io_lib:format(
+ "complete(enc_~s(~s))",[Tname,Value]);
[#type{def=#'Externaltypereference'{type=Tname}}] ->
+ asn1ct_func:need({Erules,complete,1}),
io_lib:format(
- "?RT_PER:complete(enc_~s(~s))",
+ "complete(enc_~s(~s))",
[Tname,Value]);
_ -> Value
end,
- emit(["?RT_PER:encode_open_type(", {asis,Constraint}, ",",
- NewValue, ")"]);
+ call(Erules, encode_open_type, [NewValue]);
#'ObjectClassFieldType'{} ->
case asn1ct_gen:get_inner(D#type.def) of
{fixedtypevaluefield,_,InnerType} ->
@@ -235,6 +218,17 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
exit({asn1_error,nyi,XX})
end.
+emit_enc_real(Erules, Real) ->
+ asn1ct_name:new(tmpval),
+ asn1ct_name:new(tmplen),
+ emit(["begin",nl,
+ "{",{curr,tmpval},com,{curr,tmplen},"} = ",
+ {call,real_common,encode_real,[Real]},com,nl,
+ "[",{call,Erules,encode_length,[{curr,tmplen}]},",",nl,
+ {call,Erules,octets_to_complete,
+ [{curr,tmplen},{curr,tmpval}]},"]",nl,
+ "end"]).
+
emit_enc_known_multiplier_string(StringType,C,Value) ->
SizeC =
case get_constraint(C,'SizeConstraint') of
@@ -254,62 +248,34 @@ emit_enc_known_multiplier_string(StringType,C,Value) ->
NumBits = get_NumBits(C,StringType),
CharOutTab = get_CharOutTab(C,StringType),
%% NunBits and CharOutTab for chars_encode
- emit_enc_k_m_string(StringType,SizeC,NumBits,CharOutTab,Value).
+ emit_enc_k_m_string(SizeC, NumBits, CharOutTab, Value).
-emit_enc_k_m_string(_StringType,0,_NumBits,_CharOutTab,_Value) ->
+emit_enc_k_m_string(0, _NumBits, _CharOutTab, _Value) ->
emit({"[]"});
-emit_enc_k_m_string(StringType,SizeC,NumBits,CharOutTab,Value) ->
- emit({"?RT_PER:encode_known_multiplier_string(",{asis,StringType},",",
- {asis,SizeC},",",NumBits,",",{asis,CharOutTab},",",Value,")"}).
-
-emit_dec_known_multiplier_string(StringType,C,BytesVar) ->
- SizeC = get_constraint(C,'SizeConstraint'),
- PAlphabC = get_constraint(C,'PermittedAlphabet'),
- case {StringType,PAlphabC} of
- {'BMPString',{_,_}} ->
- exit({error,{asn1,
- {'not implemented',
- "BMPString with PermittedAlphabet "
- "constraint"}}});
- _ ->
- ok
- end,
- NumBits = get_NumBits(C,StringType),
- CharInTab = get_CharInTab(C,StringType),
- case SizeC of
- 0 ->
- emit({"{[],",BytesVar,"}"});
- _ ->
- emit({"?RT_PER:decode_known_multiplier_string(",
- {asis,StringType},",",{asis,SizeC},",",NumBits,
- ",",{asis,CharInTab},",",BytesVar,")"})
- end.
+emit_enc_k_m_string(SizeC, NumBits, CharOutTab, Value) ->
+ call(per, encode_known_multiplier_string,
+ [{asis,SizeC},NumBits,{asis,CharOutTab},Value]).
%% copied from run time module
-get_CharOutTab(C,StringType) ->
- get_CharTab(C,StringType,out).
-
-get_CharInTab(C,StringType) ->
- get_CharTab(C,StringType,in).
-
-get_CharTab(C,StringType,InOut) ->
+get_CharOutTab(C, StringType) ->
case get_constraint(C,'PermittedAlphabet') of
{'SingleValue',Sv} ->
- get_CharTab2(C,StringType,hd(Sv),lists:max(Sv),Sv,InOut);
+ get_CharTab2(C, StringType, hd(Sv), lists:max(Sv), Sv);
no ->
case StringType of
'IA5String' ->
{0,16#7F,notab};
'VisibleString' ->
- get_CharTab2(C,StringType,16#20,16#7F,notab,InOut);
+ get_CharTab2(C, StringType, 16#20, 16#7F, notab);
'PrintableString' ->
Chars = lists:sort(
" '()+,-./0123456789:=?ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"),
- get_CharTab2(C,StringType,hd(Chars),lists:max(Chars),Chars,InOut);
+ get_CharTab2(C, StringType, hd(Chars),
+ lists:max(Chars), Chars);
'NumericString' ->
- get_CharTab2(C,StringType,16#20,$9," 0123456789",InOut);
+ get_CharTab2(C, StringType, 16#20, $9, " 0123456789");
'UniversalString' ->
{0,16#FFFFFFFF,notab};
'BMPString' ->
@@ -317,18 +283,13 @@ get_CharTab(C,StringType,InOut) ->
end
end.
-get_CharTab2(C,StringType,Min,Max,Chars,InOut) ->
+get_CharTab2(C, StringType, Min, Max, Chars) ->
BitValMax = (1 bsl get_NumBits(C,StringType))-1,
if
Max =< BitValMax ->
{0,Max,notab};
true ->
- case InOut of
- out ->
- {Min,Max,create_char_tab(Min,Chars)};
- in ->
- {Min,Max,list_to_tuple(Chars)}
- end
+ {Min,Max,create_char_tab(Min,Chars)}
end.
create_char_tab(Min,L) ->
@@ -397,7 +358,7 @@ charbits1(NumOfChars) ->
%% copied from run time module
-emit_enc_octet_string(_Erules,Constraint,Value) ->
+emit_enc_octet_string(Erules, Constraint, Value) ->
case get_constraint(Constraint,'SizeConstraint') of
0 ->
emit({" []"});
@@ -446,7 +407,8 @@ emit_enc_octet_string(_Erules,Constraint,Value) ->
" end",nl,
" end"]);
C ->
- emit({" ?RT_PER:encode_octet_string(",{asis,C},",false,",Value,")",nl})
+ call(Erules, encode_octet_string,
+ [{asis,C},false,Value])
end.
emit_enc_integer_case(Value) ->
@@ -533,71 +495,12 @@ emit_enc_integer(_Erule,[{_,{Lb,Ub},Range,_}],Value) when Range =< 65536 ->
nl," end",nl]),
emit_enc_integer_end_case();
+emit_enc_integer(Erule, [{'ValueRange',{Lb,Ub}=VR}], Value)
+ when is_integer(Lb), is_integer(Ub) ->
+ call(Erule, encode_constrained_number, [{asis,VR},Value]);
-emit_enc_integer(_Erule,C,Value) ->
- emit({" ?RT_PER:encode_integer(",{asis,C},",",Value,")"}).
-
-
-
-
-enc_enum_cases(Value,NewList) ->
- asn1ct_name:new(tmpval),
- TmpVal = asn1ct_gen:mk_var(asn1ct_name:curr(tmpval)),
- Cases=enc_enum_cases1(NewList),
- lists:flatten(io_lib:format("(case ~s of "++Cases++
- "~s ->exit({error,"
- "{asn1,{enumerated,~s}}})"
- " end)",
- [Value,TmpVal,TmpVal])).
-enc_enum_cases1(NNL) ->
- enc_enum_cases1(NNL,0).
-enc_enum_cases1([H|T],Index) ->
- io_lib:format("~w->~w;",[H,Index])++enc_enum_cases1(T,Index+1);
-enc_enum_cases1([],_) ->
- "".
-
-
-emit_enc_enumerated_cases(Erule, C, [H], Count) ->
- emit_enc_enumerated_case(Erule, C, H, Count),
- case H of
- 'EXT_MARK' ->
- ok;
- _ ->
- emit([";",nl])
- end,
- emit([nl,"EnumVal -> exit({error,{asn1, {enumerated_not_in_range, EnumVal}}})"]),
- emit([nl,"end"]);
-emit_enc_enumerated_cases(Erule, C, ['EXT_MARK'|T], _Count) ->
- emit_enc_enumerated_cases(Erule, C, T, 0);
-emit_enc_enumerated_cases(Erule, C, [H1,H2|T], Count) ->
- emit_enc_enumerated_case(Erule, C, H1, Count),
- emit([";",nl]),
- emit_enc_enumerated_cases(Erule, C, [H2|T], Count+1).
-
-
-%% The function clauses matching on tuples with first element
-%% asn1_enum, 1 or 0 and the atom 'EXT_MARK' are for ENUMERATED
-%% with extension mark.
-%% emit_enc_enumerated_case(_Erule,_C, {asn1_enum,High}, _) ->
-%% %% ENUMERATED with extensionmark
-%% %% value higher than the extension base and not
-%% %% present in the extension range.
-%% emit(["{asn1_enum,EnumV} when is_integer(EnumV), EnumV > ",High," -> ",
-%% "[1,?RT_PER:encode_small_number(EnumV)]"]);
-emit_enc_enumerated_case(_Erule,_C, {1,EnumName}, Count) ->
- %% ENUMERATED with extensionmark
- %% values higher than extension root
- emit(["'",EnumName,"' -> [1,?RT_PER:encode_small_number(",Count,")]"]);
-emit_enc_enumerated_case(_Erule,C, {0,EnumName}, Count) ->
- %% ENUMERATED with extensionmark
- %% values within extension root
-%% emit(["'",EnumName,"' -> [0,?RT_PER:encode_integer(",{asis,C},", ",Count,")]"]);
- emit(["'",EnumName,"' -> ",{asis,[0|asn1rt_per_bin_rt2ct:encode_integer(C,Count)]}]);
-emit_enc_enumerated_case(_Erule, _C, 'EXT_MARK', _Count) ->
- true.
-%% %% This clause is invoked in case of an ENUMERATED without extension mark
-%% emit_enc_enumerated_case(_Erule,_C, EnumName, Count) ->
-%% emit(["'",EnumName,"' -> ",Count]).
+emit_enc_integer(Erule, C, Value) ->
+ call(Erule, encode_integer, [{asis,C},Value]).
get_constraint([{Key,V}],Key) ->
@@ -1367,7 +1270,7 @@ emit_inner_of_decfun(Type,_) when is_record(Type,type) ->
case Type#type.def of
Def when is_atom(Def) ->
emit({indent(9),Def," ->",nl,indent(12)}),
- gen_dec_prim(erules,Type,"Val");
+ gen_dec_prim(per, Type, "Val");
TRef when is_record(TRef,typereference) ->
T = TRef#typereference.val,
emit({indent(9),T," ->",nl,indent(12),"'dec_",T,"'(Val)"});
@@ -1456,105 +1359,8 @@ gen_decode_user(Erules,D) when is_record(D,typedef) ->
-gen_dec_prim(Erules,Att,BytesVar) ->
- Typename = Att#type.def,
- Constraint = Att#type.constraint,
- case Typename of
- 'INTEGER' ->
- asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
- {'INTEGER',_NamedNumberList} ->
- asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
- 'REAL' ->
- emit(["?RT_PER:decode_real(",BytesVar,")"]);
-
- {'BIT STRING',NamedNumberList} ->
- case get(compact_bit_string) of
- true ->
- emit({"?RT_PER:decode_compact_bit_string(",
- BytesVar,",",{asis,Constraint},",",
- {asis,NamedNumberList},")"});
- _ ->
- emit({"?RT_PER:decode_bit_string(",BytesVar,",",
- {asis,Constraint},",",
- {asis,NamedNumberList},")"})
- end;
- 'NULL' ->
- emit({"{'NULL',",BytesVar,"}"});
- 'OBJECT IDENTIFIER' ->
- emit({"?RT_PER:decode_object_identifier(",
- BytesVar,")"});
- 'RELATIVE-OID' ->
- emit({"?RT_PER:decode_relative_oid(",
- BytesVar,")"});
- 'ObjectDescriptor' ->
- emit({"?RT_PER:decode_ObjectDescriptor(",
- BytesVar,")"});
- {'ENUMERATED',_} ->
- asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
- 'BOOLEAN'->
- asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
-
- 'OCTET STRING' ->
- asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
-
- 'NumericString' ->
- emit_dec_known_multiplier_string('NumericString',
- Constraint,BytesVar);
- TString when TString == 'TeletexString';
- TString == 'T61String' ->
- emit({"?RT_PER:decode_TeletexString(",BytesVar,",",
- {asis,Constraint},")"});
-
- 'VideotexString' ->
- emit({"?RT_PER:decode_VideotexString(",BytesVar,",",
- {asis,Constraint},")"});
-
- 'UTCTime' ->
- emit_dec_known_multiplier_string('VisibleString',
- Constraint,BytesVar);
- 'GeneralizedTime' ->
- emit_dec_known_multiplier_string('VisibleString',
- Constraint,BytesVar);
- 'GraphicString' ->
- emit({"?RT_PER:decode_GraphicString(",BytesVar,",",
- {asis,Constraint},")"});
-
- 'VisibleString' ->
- emit_dec_known_multiplier_string('VisibleString',
- Constraint,BytesVar);
- 'GeneralString' ->
- emit({"?RT_PER:decode_GeneralString(",BytesVar,",",
- {asis,Constraint},")"});
-
- 'PrintableString' ->
- emit_dec_known_multiplier_string('PrintableString',
- Constraint,BytesVar);
- 'IA5String' ->
- emit_dec_known_multiplier_string('IA5String',Constraint,BytesVar);
-
- 'BMPString' ->
- emit_dec_known_multiplier_string('BMPString',Constraint,BytesVar);
-
- 'UniversalString' ->
- emit_dec_known_multiplier_string('UniversalString',
- Constraint,BytesVar);
-
- 'UTF8String' ->
- emit({"?RT_PER:decode_UTF8String(",BytesVar,")"});
- 'ANY' ->
- asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
- 'ASN1_OPEN_TYPE' ->
- asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
- #'ObjectClassFieldType'{} ->
- case asn1ct_gen:get_inner(Att#type.def) of
- {fixedtypevaluefield,_,InnerType} ->
- gen_dec_prim(Erules,InnerType,BytesVar);
- T ->
- gen_dec_prim(Erules,Att#type{def=T},BytesVar)
- end;
- Other ->
- exit({'cant decode' ,Other})
- end.
+gen_dec_prim(Erules, Att, BytesVar) ->
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar).
%% For PER the ExtensionAdditionGroup notation has significance for the encoding and decoding
%% the components within the ExtensionAdditionGroup is treated in a similar way as if they
diff --git a/lib/asn1/src/asn1ct_imm.erl b/lib/asn1/src/asn1ct_imm.erl
index 34bb0b8714..5bdaed8f4f 100644
--- a/lib/asn1/src/asn1ct_imm.erl
+++ b/lib/asn1/src/asn1ct_imm.erl
@@ -18,10 +18,13 @@
%%
%%
-module(asn1ct_imm).
--export([per_dec_boolean/0,per_dec_enumerated/2,per_dec_enumerated/3,
+-export([per_dec_raw_bitstring/2,
+ per_dec_boolean/0,per_dec_enumerated/2,per_dec_enumerated/3,
per_dec_extension_map/1,
- per_dec_integer/2,per_dec_length/3,per_dec_named_integer/3,
- per_dec_octet_string/2,per_dec_open_type/1]).
+ per_dec_integer/2,per_dec_k_m_string/3,
+ per_dec_length/3,per_dec_named_integer/3,
+ per_dec_octet_string/2,per_dec_open_type/1,per_dec_real/1,
+ per_dec_restricted_string/1]).
-export([optimize_alignment/1,optimize_alignment/2,
dec_slim_cg/2,dec_code_gen/2]).
-export([effective_constraint/2]).
@@ -59,9 +62,17 @@ per_dec_boolean() ->
{map,{get_bits,1,[1]},[{0,false},{1,true}]}.
per_dec_enumerated(NamedList0, Aligned) ->
- Constraint = [{'ValueRange',{0,length(NamedList0)-1}}],
- NamedList = per_dec_enumerated_fix_list(NamedList0, [enum_error], 0),
+ Ub = length(NamedList0) - 1,
+ Constraint = [{'ValueRange',{0,Ub}}],
Int = per_dec_integer(Constraint, Aligned),
+ EnumTail = case matched_range(Int) of
+ {0,Ub} ->
+ %% The error case can never happen.
+ [];
+ _ ->
+ [enum_error]
+ end,
+ NamedList = per_dec_enumerated_fix_list(NamedList0, EnumTail, 0),
{map,Int,NamedList}.
per_dec_enumerated(BaseNamedList, NamedListExt0, Aligned) ->
@@ -100,13 +111,36 @@ per_dec_named_integer(Constraint, NamedList0, Aligned) ->
NamedList = [{K,V} || {V,K} <- NamedList0] ++ [integer_default],
{map,Int,NamedList}.
+per_dec_k_m_string(StringType, Constraint, Aligned) ->
+ SzConstr = get_constraint(Constraint, 'SizeConstraint'),
+ N = string_num_bits(StringType, Constraint, Aligned),
+ Imm = dec_string(SzConstr, N, Aligned),
+ Chars = char_tab(Constraint, StringType, N),
+ convert_string(N, Chars, Imm).
+
per_dec_octet_string(Constraint, Aligned) ->
dec_string(Constraint, 8, Aligned).
+per_dec_raw_bitstring(Constraint, Aligned) ->
+ dec_string(Constraint, 1, Aligned).
+
per_dec_open_type(Aligned) ->
{get_bits,decode_unconstrained_length(true, Aligned),
[8,binary,{align,Aligned}]}.
+per_dec_real(Aligned) ->
+ Dec = fun(V, Buf) ->
+ emit(["{",{call,real_common,decode_real,[V]},
+ com,Buf,"}"])
+ end,
+ {call,Dec,
+ {get_bits,decode_unconstrained_length(true, Aligned),
+ [8,binary,{align,Aligned}]}}.
+
+per_dec_restricted_string(Aligned) ->
+ DecLen = decode_unconstrained_length(true, Aligned),
+ {get_bits,DecLen,[8,binary]}.
+
%%%
%%% Local functions.
@@ -116,7 +150,7 @@ dec_string(Sv, U, _Aligned) when is_integer(Sv), U*Sv =< 16 ->
{get_bits,Sv,[U,binary]};
dec_string(Sv, U, Aligned) when is_integer(Sv), Sv < 16#10000 ->
{get_bits,Sv,[U,binary,{align,Aligned}]};
-dec_string(C, U, Aligned) when is_list(C) ->
+dec_string([_|_]=C, U, Aligned) when is_list(C) ->
dec_string({hd(C),lists:max(C)}, U, Aligned);
dec_string({Sv,Sv}, U, Aligned) ->
dec_string(Sv, U, Aligned);
@@ -129,8 +163,9 @@ dec_string({Lb,Ub}, U, Aligned) when Ub < 16#10000 ->
dec_string(_, U, Aligned) ->
Al = [{align,Aligned}],
DecRest = fun(V, Buf) ->
- emit(["?RT_PER:decode_fragmented(",V,", ",
- Buf,", ",U,")"])
+ asn1ct_func:call(per_common,
+ decode_fragmented,
+ [V,Buf,U])
end,
{'case',[{test,{get_bits,1,[1|Al]},0,
{value,{get_bits,
@@ -228,6 +263,103 @@ per_num_bits(N) when N =< 64 -> 6;
per_num_bits(N) when N =< 128 -> 7;
per_num_bits(N) when N =< 255 -> 8.
+matched_range({get_bits,Bits0,[U|Flags]}) when is_integer(U) ->
+ case lists:member(signed, Flags) of
+ false ->
+ Bits = U*Bits0,
+ {0,(1 bsl Bits) - 1};
+ true ->
+ unknown
+ end;
+matched_range(_Op) -> unknown.
+
+string_num_bits(StringType, Constraint, Aligned) ->
+ case get_constraint(Constraint, 'PermittedAlphabet') of
+ {'SingleValue',Sv} ->
+ charbits(length(Sv), Aligned);
+ no ->
+ case StringType of
+ 'IA5String' ->
+ charbits(128, Aligned);
+ 'VisibleString' ->
+ charbits(95, Aligned);
+ 'PrintableString' ->
+ charbits(74, Aligned);
+ 'NumericString' ->
+ charbits(11, Aligned);
+ 'UniversalString' ->
+ 32;
+ 'BMPString' ->
+ 16
+ end
+ end.
+
+charbits(NumChars, false) ->
+ uper_num_bits(NumChars);
+charbits(NumChars, true) ->
+ 1 bsl uper_num_bits(uper_num_bits(NumChars)).
+
+convert_string(8, notab, Imm) ->
+ {convert,binary_to_list,Imm};
+convert_string(NumBits, notab, Imm) when NumBits < 8 ->
+ Dec = fun(V, Buf) ->
+ emit(["{",{call,per_common,decode_chars,
+ [V,NumBits]},com,Buf,"}"])
+ end,
+ {call,Dec,Imm};
+convert_string(NumBits, notab, Imm) when NumBits =:= 16 ->
+ Dec = fun(V, Buf) ->
+ emit(["{",{call,per_common,decode_chars_16bit,
+ [V]},com,Buf,"}"])
+ end,
+ {call,Dec,Imm};
+convert_string(NumBits, notab, Imm) ->
+ Dec = fun(V, Buf) ->
+ emit(["{",{call,per_common,decode_big_chars,
+ [V,NumBits]},com,Buf,"}"])
+ end,
+ {call,Dec,Imm};
+convert_string(NumBits, Chars, Imm) ->
+ Dec = fun(V, Buf) ->
+ emit(["{",{call,per_common,decode_chars,
+ [V,NumBits,{asis,Chars}]},com,Buf,"}"])
+ end,
+ {call,Dec,Imm}.
+
+char_tab(C, StringType, NumBits) ->
+ case get_constraint(C, 'PermittedAlphabet') of
+ {'SingleValue',Sv} ->
+ char_tab_1(Sv, NumBits);
+ no ->
+ case StringType of
+ 'IA5String' ->
+ notab;
+ 'VisibleString' ->
+ notab;
+ 'PrintableString' ->
+ Chars = " '()+,-./0123456789:=?"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz",
+ char_tab_1(Chars, NumBits);
+ 'NumericString' ->
+ char_tab_1(" 0123456789", NumBits);
+ 'UniversalString' ->
+ notab;
+ 'BMPString' ->
+ notab
+ end
+ end.
+
+char_tab_1(Chars, NumBits) ->
+ Max = lists:max(Chars),
+ BitValMax = (1 bsl NumBits) - 1,
+ if
+ Max =< BitValMax ->
+ notab;
+ true ->
+ list_to_tuple(lists:sort(Chars))
+ end.
+
%%%
%%% Remove unnecessary aligning to octet boundaries.
%%%
@@ -259,6 +391,8 @@ opt_al({'case',Cs0}, A0) ->
opt_al({map,E0,Cs}, A0) ->
{E,A} = opt_al(E0, A0),
{{map,E,Cs},A};
+opt_al('NULL'=Null, A) ->
+ {Null,A};
opt_al(I, A) when is_integer(I) ->
{I,A}.
@@ -346,6 +480,8 @@ flatten({map,E0,Cs0}, Buf0, St0) ->
{Dst,St2} = new_var("Int", St1),
Cs = flatten_map_cs(Cs0, E),
{{Dst,DstBuf},Pre++[{'map',E,Cs,{Dst,DstBuf}}],St2};
+flatten({value,'NULL'}, Buf0, St0) ->
+ {{"'NULL'",Buf0},[],St0};
flatten({value,V0}, Buf0, St0) when is_integer(V0) ->
{{V0,Buf0},[],St0};
flatten({value,V0}, Buf0, St0) ->
@@ -515,8 +651,6 @@ dcg_list_inside([{get_bits,{Sz,_},Fl0,{Dst,DstBuf}}|T], _) ->
dcg_list_inside(T, DstBuf);
dcg_list_inside(L, Dst) -> {L,Dst}.
-bit_flags([1|T], Acc) ->
- bit_flags(T, Acc);
bit_flags([{align,_}|T], Acc) ->
bit_flags(T, Acc);
bit_flags([non_zero|T], Acc) ->
@@ -528,7 +662,11 @@ bit_flags([H|T], Acc) ->
bit_flags([], []) ->
"";
bit_flags([], Acc) ->
- "/" ++ bit_flags_1(Acc, "").
+ case "/" ++ bit_flags_1(Acc, "") of
+ "/unit:1" -> [];
+ Opts -> Opts
+ end.
+
bit_flags_1([H|T], Sep) ->
Sep ++ H ++ bit_flags_1(T, "-");
diff --git a/lib/asn1/src/asn1ct_value.erl b/lib/asn1/src/asn1ct_value.erl
index 389642c446..8f3dc1d8b8 100644
--- a/lib/asn1/src/asn1ct_value.erl
+++ b/lib/asn1/src/asn1ct_value.erl
@@ -54,7 +54,7 @@ from_type(M,Typename,Type) when is_record(Type,type) ->
{notype,_} ->
true;
{primitive,bif} ->
- from_type_prim(Type);
+ from_type_prim(M, Type);
'ASN1_OPEN_TYPE' ->
case Type#type.constraint of
[#'Externaltypereference'{type=TrefConstraint}] ->
@@ -65,7 +65,7 @@ from_type(M,Typename,Type) when is_record(Type,type) ->
end;
{constructed,bif} when Typename == ['EXTERNAL'] ->
Val=from_type_constructed(M,Typename,InnerType,Type),
- asn1rt_check:transform_to_EXTERNAL1994(Val);
+ asn1ct_eval_ext:transform_to_EXTERNAL1994(Val);
{constructed,bif} ->
from_type_constructed(M,Typename,InnerType,Type)
end;
@@ -164,7 +164,7 @@ gen_list(_,_,_,0) ->
gen_list(M,Typename,Oftype,N) ->
[from_type(M,Typename,Oftype)|gen_list(M,Typename,Oftype,N-1)].
-from_type_prim(D) ->
+from_type_prim(M, D) ->
C = D#type.constraint,
case D#type.def of
'INTEGER' ->
@@ -212,18 +212,7 @@ from_type_prim(D) ->
NN = [X||{X,_} <- NamedNumberList],
case NN of
[] ->
- Bl1 =lists:reverse(adjust_list(size_random(C),[1,0,1,1])),
- Bl2 = lists:reverse(lists:dropwhile(fun(0)->true;(1)->false end,Bl1)),
- case {length(Bl2),get_constraint(C,'SizeConstraint')} of
- {Len,Len} ->
- Bl2;
- {_Len,Int} when is_integer(Int) ->
- Bl1;
- {Len,{Min,_}} when Min > Len ->
- Bl1;
- _ ->
- Bl2
- end;
+ random_unnamed_bit_string(M, C);
_ ->
[lists:nth(random(length(NN)),NN)]
end;
@@ -320,6 +309,32 @@ c_string(C,Default) ->
Default
end.
+random_unnamed_bit_string(M, C) ->
+ Bl1 = lists:reverse(adjust_list(size_random(C), [1,0,1,1])),
+ Bl2 = lists:reverse(lists:dropwhile(fun(0)-> true;
+ (1) -> false
+ end,Bl1)),
+ Val = case {length(Bl2),get_constraint(C, 'SizeConstraint')} of
+ {Len,Len} ->
+ Bl2;
+ {_Len,Int} when is_integer(Int) ->
+ Bl1;
+ {Len,{Min,_}} when Min > Len ->
+ Bl1;
+ _ ->
+ Bl2
+ end,
+ case M:bit_string_format() of
+ legacy ->
+ Val;
+ bitstring ->
+ << <<B:1>> || B <- Val >>;
+ compact ->
+ BitString = << <<B:1>> || B <- Val >>,
+ PadLen = (8 - (bit_size(BitString) band 7)) band 7,
+ {PadLen,<<BitString/bitstring,0:PadLen>>}
+ end.
+
%% FIXME:
%% random_sign(integer) ->
%% case random(2) of
diff --git a/lib/asn1/src/asn1rt_ber_bin.erl b/lib/asn1/src/asn1rt_ber_bin.erl
deleted file mode 100644
index ec1549804b..0000000000
--- a/lib/asn1/src/asn1rt_ber_bin.erl
+++ /dev/null
@@ -1,525 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2000-2010. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
-%%
--module(asn1rt_ber_bin).
-
--export([decode_length/1,
- encode_real/2, encode_real/3,
- decode_real/2, decode_real/4,
- decode_tag/1]).
-
--include("asn1_records.hrl").
-
-%% the encoding of class of tag bits 8 and 7
--define(UNIVERSAL, 0).
-
-%%% primitive or constructed encoding % bit 6
--define(PRIMITIVE, 0).
--define(CONSTRUCTED, 2#00100000).
-
-%%% The tag-number for universal types
--define(N_REAL, 9).
-
-encode_tag_val({Class, Form, TagNo}) when (TagNo =< 30) ->
- <<(Class bsr 6):2,(Form bsr 5):1,TagNo:5>>;
-
-encode_tag_val({Class, Form, TagNo}) ->
- {Octets,_Len} = mk_object_val(TagNo),
- BinOct = list_to_binary(Octets),
- <<(Class bsr 6):2, (Form bsr 5):1, 31:5,BinOct/binary>>.
-
-%%===============================================================================
-%% Decode a tag
-%%
-%% decode_tag(OctetListBuffer) -> {{Class, Form, TagNo}, RestOfBuffer, RemovedBytes}
-%%===============================================================================
-
-%% multiple octet tag
-decode_tag(<<Class:2, Form:1, 31:5, Buffer/binary>>) ->
- {TagNo, Buffer1, RemovedBytes} = decode_tag(Buffer, 0, 1),
- {{(Class bsl 6), (Form bsl 5), TagNo}, Buffer1, RemovedBytes};
-
-%% single tag (< 31 tags)
-decode_tag(<<Class:2,Form:1,TagNo:5, Buffer/binary>>) ->
- {{(Class bsl 6), (Form bsl 5), TagNo}, Buffer, 1}.
-
-%% last partial tag
-decode_tag(<<0:1,PartialTag:7, Buffer/binary>>, TagAck, RemovedBytes) ->
- TagNo = (TagAck bsl 7) bor PartialTag,
- %%<<TagNo>> = <<TagAck:1, PartialTag:7>>,
- {TagNo, Buffer, RemovedBytes+1};
-% more tags
-decode_tag(<<_:1,PartialTag:7, Buffer/binary>>, TagAck, RemovedBytes) ->
- TagAck1 = (TagAck bsl 7) bor PartialTag,
- %%<<TagAck1:16>> = <<TagAck:1, PartialTag:7,0:8>>,
- decode_tag(Buffer, TagAck1, RemovedBytes+1).
-
-%%------------------------------------------------------------------
-%% check_tags_i is the same as check_tags except that it stops and
-%% returns the remaining tags not checked when it encounters an
-%% indefinite length field
-%% only called internally within this module
-
-check_tags_i([Tag], Buffer, OptOrMand) -> % optimized very usual case
- {[],check_one_tag(Tag, Buffer, OptOrMand)};
-check_tags_i(Tags, Buffer, OptOrMand) ->
- check_tags_i(Tags, Buffer, 0, OptOrMand).
-
-check_tags_i([Tag1,Tag2|TagRest], Buffer, Rb, OptOrMand)
- when Tag1#tag.type == 'IMPLICIT' ->
- check_tags_i([Tag1#tag{type=Tag2#tag.type}|TagRest], Buffer, Rb, OptOrMand);
-
-check_tags_i([Tag1|TagRest], Buffer, Rb, OptOrMand) ->
- {Form_Length,Buffer2,Rb1} = check_one_tag(Tag1, Buffer, OptOrMand),
- case TagRest of
- [] -> {TagRest, {Form_Length, Buffer2, Rb + Rb1}};
- _ ->
- case Form_Length of
- {?CONSTRUCTED,_} ->
- {TagRest, {Form_Length, Buffer2, Rb + Rb1}};
- _ ->
- check_tags_i(TagRest, Buffer2, Rb + Rb1, mandatory)
- end
- end.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% This function is called from generated code
-
-check_one_tag(Tag=#tag{class=ExpectedClass,number=ExpectedNumber}, Buffer, OptOrMand) ->
- case catch decode_tag(Buffer) of
- {'EXIT',_Reason} ->
- tag_error(no_data,Tag,Buffer,OptOrMand);
- {{ExpectedClass,Form,ExpectedNumber},Buffer2,Rb} ->
- {{L,Buffer3},RemBytes2} = decode_length(Buffer2),
- {{Form,L}, Buffer3, RemBytes2+Rb};
- {ErrorTag,_,_} ->
- tag_error(ErrorTag, Tag, Buffer, OptOrMand)
- end.
-
-tag_error(ErrorTag, Tag, Buffer, OptOrMand) ->
- case OptOrMand of
- mandatory ->
- exit({error,{asn1, {invalid_tag,
- {ErrorTag, Tag, Buffer}}}});
- _ ->
- exit({error,{asn1, {no_optional_tag,
- {ErrorTag, Tag, Buffer}}}})
- end.
-%%=======================================================================
-%%
-%% Encode all tags in the list Tags and return a possibly deep list of
-%% bytes with tag and length encoded
-%%
-%% prepend_tags(Tags, BytesSoFar, LenSoFar) -> {Bytes, Len}
-encode_tags(Tags, BytesSoFar, LenSoFar) ->
- NewTags = encode_tags1(Tags, []),
- %% NewTags contains the resulting tags in reverse order
- encode_tags2(NewTags, BytesSoFar, LenSoFar).
-
-%encode_tags2([#tag{class=?UNIVERSAL,number=No}|Trest], BytesSoFar, LenSoFar) ->
-% {Bytes2,L2} = encode_length(LenSoFar),
-% encode_tags2(Trest,[[No|Bytes2],BytesSoFar], LenSoFar + 1 + L2);
-encode_tags2([Tag|Trest], BytesSoFar, LenSoFar) ->
- {Bytes1,L1} = encode_one_tag(Tag),
- {Bytes2,L2} = encode_length(LenSoFar),
- encode_tags2(Trest, [Bytes1,Bytes2|BytesSoFar],
- LenSoFar + L1 + L2);
-encode_tags2([], BytesSoFar, LenSoFar) ->
- {BytesSoFar,LenSoFar}.
-
-encode_tags1([Tag1, Tag2| Trest], Acc) when Tag1#tag.type =:= 'IMPLICIT' ->
- encode_tags1([Tag1#tag{type=Tag2#tag.type,form=Tag2#tag.form}|Trest],Acc);
-encode_tags1([Tag1 | Trest], Acc) ->
- encode_tags1(Trest, [Tag1|Acc]);
-encode_tags1([], Acc) ->
- Acc. % the resulting tags are returned in reverse order
-
-encode_one_tag(Bin) when is_binary(Bin) ->
- {Bin,byte_size(Bin)};
-encode_one_tag(#tag{class=Class,number=No,type=Type, form = Form}) ->
- NewForm = case Type of
- 'EXPLICIT' ->
- ?CONSTRUCTED;
- _ ->
- Form
- end,
- Bytes = encode_tag_val({Class,NewForm,No}),
- {Bytes,size(Bytes)}.
-
-%%============================================================================
-%%
-%% Real value, ITU_T X.690 Chapter 8.5
-%%============================================================================
-%%
-%% encode real value
-%%============================================================================
-
-%% only base 2 internally so far!!
-encode_real(_C,0, DoTag) ->
- dotag(DoTag, ?N_REAL, {[],0});
-encode_real(_C,'PLUS-INFINITY', DoTag) ->
- dotag(DoTag, ?N_REAL, {[64],1});
-encode_real(_C,'MINUS-INFINITY', DoTag) ->
- dotag(DoTag, ?N_REAL, {[65],1});
-encode_real(C,Val, DoTag) when is_tuple(Val); is_list(Val) ->
- dotag(DoTag, ?N_REAL, encode_real(C,Val)).
-
-%%%%%%%%%%%%%%
-%% only base 2 encoding!
-%% binary encoding:
-%% +------------+ +------------+ +-+-+-+-+---+---+
-%% | (tag)9 | | n + p + 1 | |1|S|BB |FF |EE |
-%% +------------+ +------------+ +-+-+-+-+---+---+
-%%
-%% +------------+ +------------+
-%% | | | |
-%% +------------+ ...+------------+
-%% n octets for exponent
-%%
-%% +------------+ +------------+
-%% | | | |
-%% +------------+ ...+------------+
-%% p octets for pos mantissa
-%%
-%% S is 0 for positive sign
-%% 1 for negative sign
-%% BB: encoding base, 00 = 2, (01 = 8, 10 = 16)
-%% 01 and 10 not used
-%% FF: scale factor 00 = 0 (used in base 2 encoding)
-%% EE: encoding of the exponent:
-%% 00 - on the following octet
-%% 01 - on the 2 following octets
-%% 10 - on the 3 following octets
-%% 11 - encoding of the length of the two's-complement encoding of
-%% exponent on the following octet, and two's-complement
-%% encoding of exponent on the other octets.
-%%
-%% In DER and base 2 encoding the mantissa is encoded as value 0 or
-%% bit shifted until it is an odd number. Thus, do this for BER as
-%% well.
-%% This interface also used by RT_COMMON
-encode_real(_C,{Mantissa, Base, Exponent}) when Base =:= 2 ->
-%% io:format("Mantissa: ~w Base: ~w, Exp: ~w~n",[Man, Base, Exp]),
- {Man,ExpAdd} = truncate_zeros(Mantissa), %% DER adjustment
- Exp = Exponent + ExpAdd,
- OctExp = if Exp >= 0 -> list_to_binary(encode_integer_pos(Exp, []));
- true -> list_to_binary(encode_integer_neg(Exp, []))
- end,
-%% ok = io:format("OctExp: ~w~n",[OctExp]),
- SignBit = if Man > 0 -> 0; % bit 7 is pos or neg, no Zeroval
- true -> 1
- end,
-%% ok = io:format("SignBitMask: ~w~n",[SignBitMask]),
- SFactor = 0,
- OctExpLen = size(OctExp),
- if OctExpLen > 255 ->
- exit({error,{asn1, {to_big_exp_in_encode_real, OctExpLen}}});
- true -> true %% make real assert later..
- end,
- {LenCode, EOctets} = case OctExpLen of % bit 2,1
- 1 -> {0, OctExp};
- 2 -> {1, OctExp};
- 3 -> {2, OctExp};
- _ -> {3, <<OctExpLen, OctExp/binary>>}
- end,
- BB = 0, %% 00 for base 2
- FirstOctet = <<1:1,SignBit:1,BB:2,SFactor:2,LenCode:2>>,
- OctMantissa = if Man > 0 -> list_to_binary(minimum_octets(Man));
- true -> list_to_binary(minimum_octets(-(Man))) % signbit keeps track of sign
- end,
- %% ok = io:format("LenMask: ~w EOctets: ~w~nFirstOctet: ~w OctMantissa: ~w OctExpLen: ~w~n", [LenMask, EOctets, FirstOctet, OctMantissa, OctExpLen]),
- Bin = <<FirstOctet/binary, EOctets/binary, OctMantissa/binary>>,
- {Bin, size(Bin)};
-encode_real(C,{Mantissa,Base,Exponent})
- when Base =:= 10, is_integer(Mantissa), is_integer(Exponent) ->
- %% always encode as NR3 due to DER on the format
- %% mmmm.Eseeee where
- %% m := digit
- %% s := '-' | '+' | []
- %% '+' only allowed in +0
- %% e := digit
- %% ex: 1234.E-5679
-%% {Man,AddExp} = truncate_zeros(Mantissa,0),
-%% ManNum = trunc(Mantissa),
-%% {TruncatedMan,NumZeros} = truncate_zeros10(Mantissa),
- ManStr = integer_to_list(Mantissa),
-
- encode_real_as_string(C,ManStr,Exponent);
-encode_real(_C,{_,Base,_}) ->
- exit({error,{asn1, {encode_real_non_supported_encodeing, Base}}});
-%% base 10
-encode_real(C,Real) when is_list(Real) ->
- %% The Real string may come in as a NR1, NR2 or NR3 string.
- {Mantissa, Exponent} =
- case string:tokens(Real,"Ee") of
- [NR2] ->
- {NR2,0};
- [NR3MB,NR3E] ->
- %% remove beginning zeros
- {NR3MB,list_to_integer(NR3E)}
- end,
-
- %% .Decimal | Number | Number.Decimal
- ZeroDecimal =
- fun("0") -> "";
- (L) -> L
- end,
- {NewMantissa,LenDecimal} =
- case Mantissa of
- [$.|Dec] ->
- NewMan = remove_trailing_zeros(Dec),
- {NewMan,length(ZeroDecimal(NewMan))};
- _ ->
- case string:tokens(Mantissa,",.") of
- [Num] -> %% No decimal-mark
- {integer_to_list(list_to_integer(Num)),0};
- [Num,Dec] ->
- NewDec = ZeroDecimal(remove_trailing_zeros(Dec)),
- NewMan = integer_to_list(list_to_integer(Num)) ++ NewDec,
- {integer_to_list(list_to_integer(NewMan)),
- length(NewDec)}
- end
- end,
-
-% DER_Exponent = integer_to_list(Exponent - ExpReduce),
- encode_real_as_string(C,NewMantissa,Exponent - LenDecimal).
-
-encode_real_as_string(_C,Mantissa,Exponent)
- when is_list(Mantissa), is_integer(Exponent) ->
- %% Remove trailing zeros in Mantissa and add this to Exponent
- TruncMant = remove_trailing_zeros(Mantissa),
-
- ExpIncr = length(Mantissa) - length(TruncMant),
-
- ExpStr = integer_to_list(Exponent + ExpIncr),
-
- ExpBin =
- case ExpStr of
- "0" ->
- <<"E+0">>;
- _ ->
- ExpB = list_to_binary(ExpStr),
- <<$E,ExpB/binary>>
- end,
- ManBin = list_to_binary(TruncMant),
- NR3 = 3,
- {<<NR3,ManBin/binary,$.,ExpBin/binary>>,2 + size(ManBin) + size(ExpBin)}.
-
-remove_trailing_zeros(IntStr) ->
- case lists:dropwhile(fun($0)-> true;
- (_) -> false
- end, lists:reverse(IntStr)) of
- [] ->
- "0";
- ReversedIntStr ->
- lists:reverse(ReversedIntStr)
- end.
-
-truncate_zeros(Num) ->
- truncate_zeros(Num,0).
-truncate_zeros(0,Sum) ->
- {0,Sum};
-truncate_zeros(M,Sum) ->
- case M band 16#f =:= M band 16#e of
- true -> truncate_zeros(M bsr 1,Sum+1);
- _ -> {M,Sum}
- end.
-
-
-%%============================================================================
-%% decode real value
-%%
-%% decode_real([OctetBufferList], tuple|value, tag|notag) ->
-%% {{Mantissa, Base, Exp} | realval | PLUS-INFINITY | MINUS-INFINITY | 0,
-%% RestBuff}
-%%
-%% only for base 2 decoding sofar!!
-%%============================================================================
-
-decode_real(Buffer, C, Tags, OptOrMand) ->
- NewTags = new_tags(Tags,#tag{class=?UNIVERSAL,number=?N_REAL}),
- decode_real_notag(Buffer, C, NewTags, OptOrMand).
-
-%% This interface used by RT_COMMON
-decode_real(Buffer,Len) ->
- decode_real2(Buffer,[],Len,0).
-
-decode_real_notag(Buffer, C, Tags, OptOrMand) ->
- {_RestTags, {{_,Len}, Buffer0, Rb0}} =
- check_tags_i(Tags, Buffer, OptOrMand),
- decode_real2(Buffer0, C, Len, Rb0).
-
-decode_real2(Buffer, _C, 0, _RemBytes) ->
- {0,Buffer};
-decode_real2(Buffer0, _C, Len, RemBytes1) ->
- <<First, Buffer2/binary>> = Buffer0,
- if
- First =:= 2#01000000 -> {'PLUS-INFINITY', Buffer2};
- First =:= 2#01000001 -> {'MINUS-INFINITY', Buffer2};
-%% First =:= 2#00000000 -> {0, Buffer2};
- First =:= 1 orelse First =:= 2 orelse First =:= 3 ->
- %% charcter string encoding of base 10
- {NRx,Rest} = split_binary(Buffer2,Len-1),
- {binary_to_list(NRx),Rest,Len};
- true ->
- %% have some check here to verify only supported bases (2)
- %% not base 8 or 16
- <<_B7:1,Sign:1,BB:2,_FF:2,EE:2>> = <<First>>,
- Base =
- case BB of
- 0 -> 2; % base 2, only one so far
- _ -> exit({error,{asn1, {non_supported_base, BB}}})
- end,
- {FirstLen, {Exp, Buffer3,_Rb2}, RemBytes2} =
- case EE of
- 0 -> {2, decode_integer2(1, Buffer2, RemBytes1), RemBytes1+1};
- 1 -> {3, decode_integer2(2, Buffer2, RemBytes1), RemBytes1+2};
- 2 -> {4, decode_integer2(3, Buffer2, RemBytes1), RemBytes1+3};
- 3 ->
- <<ExpLen1,RestBuffer/binary>> = Buffer2,
- { ExpLen1 + 2,
- decode_integer2(ExpLen1, RestBuffer, RemBytes1),
- RemBytes1+ExpLen1}
- end,
- %% io:format("FirstLen: ~w, Exp: ~w, Buffer3: ~w ~n",
-
- Length = Len - FirstLen,
- <<LongInt:Length/unit:8,RestBuff/binary>> = Buffer3,
- {{Mantissa, Buffer4}, RemBytes3} =
- if Sign =:= 0 ->
- %% io:format("sign plus~n"),
- {{LongInt, RestBuff}, 1 + Length};
- true ->
- %% io:format("sign minus~n"),
- {{-LongInt, RestBuff}, 1 + Length}
- end,
- {{Mantissa, Base, Exp}, Buffer4, RemBytes2+RemBytes3}
- end.
-
-encode_integer_pos(0, L=[B|_Acc]) when B < 128 ->
- L;
-encode_integer_pos(N, Acc) ->
- encode_integer_pos((N bsr 8), [N band 16#ff| Acc]).
-
-encode_integer_neg(-1, L=[B1|_T]) when B1 > 127 ->
- L;
-encode_integer_neg(N, Acc) ->
- encode_integer_neg(N bsr 8, [N band 16#ff|Acc]).
-
-
-%%%%%%%%%%%
-%% mk_object_val(Value) -> {OctetList, Len}
-%% returns a Val as a list of octets, the 8 bit is allways set to one except
-%% for the last octet, where its 0
-%%
-
-
-mk_object_val(Val) when Val =< 127 ->
- {[255 band Val], 1};
-mk_object_val(Val) ->
- mk_object_val(Val bsr 7, [Val band 127], 1).
-mk_object_val(0, Ack, Len) ->
- {Ack, Len};
-mk_object_val(Val, Ack, Len) ->
- mk_object_val(Val bsr 7, [((Val band 127) bor 128) | Ack], Len + 1).
-
-
-%%============================================================================
-%% Length handling
-%%
-%% Encode length
-%%
-%% encode_length(Int | indefinite) ->
-%% [<127]| [128 + Int (<127),OctetList] | [16#80]
-%%============================================================================
-
-encode_length(L) when L =< 16#7F ->
- {[L],1};
-encode_length(L) ->
- Oct = minimum_octets(L),
- Len = length(Oct),
- if
- Len =< 126 ->
- {[ (16#80+Len) | Oct ],Len+1};
- true ->
- exit({error,{asn1, to_long_length_oct, Len}})
- end.
-
-
-%% Val must be >= 0
-minimum_octets(Val) ->
- minimum_octets(Val,[]).
-
-minimum_octets(0,Acc) ->
- Acc;
-minimum_octets(Val, Acc) ->
- minimum_octets((Val bsr 8),[Val band 16#FF | Acc]).
-
-
-%%===========================================================================
-%% Decode length
-%%
-%% decode_length(OctetList) -> {{indefinite, RestOctetsL}, NoRemovedBytes} |
-%% {{Length, RestOctetsL}, NoRemovedBytes}
-%%===========================================================================
-
-decode_length(<<1:1,0:7,T/binary>>) ->
- {{indefinite, T}, 1};
-decode_length(<<0:1,Length:7,T/binary>>) ->
- {{Length,T},1};
-decode_length(<<1:1,LL:7,T/binary>>) ->
- <<Length:LL/unit:8,Rest/binary>> = T,
- {{Length,Rest}, LL+1}.
-
-
-dotag([], Tag, {Bytes,Len}) ->
- dotag_universal(Tag,Bytes,Len);
-dotag(Tags, Tag, {Bytes,Len}) ->
- encode_tags(Tags ++ [#tag{class=?UNIVERSAL,number=Tag,form=?PRIMITIVE}],
- Bytes, Len).
-
-dotag_universal(UniversalTag,Bytes,Len) when Len =< 16#7F->
- {[UniversalTag,Len,Bytes],2+Len};
-dotag_universal(UniversalTag,Bytes,Len) ->
- {EncLen,LenLen}=encode_length(Len),
- {[UniversalTag,EncLen,Bytes],1+LenLen+Len}.
-
-%% decoding postitive integer values.
-decode_integer2(Len,Bin = <<0:1,_:7,_Bs/binary>>,RemovedBytes) ->
- <<Int:Len/unit:8,Buffer2/binary>> = Bin,
- {Int,Buffer2,RemovedBytes};
-%% decoding negative integer values.
-decode_integer2(Len,<<1:1,B2:7,Bs/binary>>,RemovedBytes) ->
- <<N:Len/unit:8,Buffer2/binary>> = <<B2,Bs/binary>>,
- Int = N - (1 bsl (8 * Len - 1)),
- {Int,Buffer2,RemovedBytes}.
-
-new_tags([],LastTag) ->
- [LastTag];
-new_tags(Tags = [#tag{type='IMPLICIT'}],_LastTag) ->
- Tags;
-new_tags([T1 = #tag{type='IMPLICIT'},#tag{type=T2Type}|Rest],LastTag) ->
- new_tags([T1#tag{type=T2Type}|Rest],LastTag);
-new_tags(Tags,LastTag) ->
- case lists:last(Tags) of
- #tag{type='IMPLICIT'} ->
- Tags;
- _ ->
- Tags ++ [LastTag]
- end.
diff --git a/lib/asn1/src/asn1rt_ber_bin_v2.erl b/lib/asn1/src/asn1rt_ber_bin_v2.erl
deleted file mode 100644
index 92ca11cf89..0000000000
--- a/lib/asn1/src/asn1rt_ber_bin_v2.erl
+++ /dev/null
@@ -1,1992 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2002-2012. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
-%%
--module(asn1rt_ber_bin_v2).
-
-%% encoding / decoding of BER
-
--export([decode/1, decode/2, match_tags/2, encode/1, encode/2]).
--export([fixoptionals/2,
- encode_tag_val/1,
- encode_tags/3,
- skip_ExtensionAdditions/2]).
--export([encode_boolean/2,decode_boolean/2,
- encode_integer/3,encode_integer/4,
- decode_integer/3, decode_integer/4,
- encode_enumerated/2,
- encode_enumerated/4,decode_enumerated/4,
- encode_real/3,decode_real/2,
- encode_bit_string/4,decode_bit_string/4,
- decode_compact_bit_string/4,
- encode_octet_string/3,decode_octet_string/3,
- encode_null/2,decode_null/2,
- encode_relative_oid/2,decode_relative_oid/2,
- encode_object_identifier/2,decode_object_identifier/2,
- encode_restricted_string/4,decode_restricted_string/4,
- encode_universal_string/3,decode_universal_string/3,
- encode_UTF8_string/3,decode_UTF8_string/2,
- encode_BMP_string/3,decode_BMP_string/3,
- encode_generalized_time/3,decode_generalized_time/3,
- encode_utc_time/3,decode_utc_time/3,
- encode_length/1,decode_length/1,
- decode_tag_and_length/1]).
-
--export([encode_open_type/1,encode_open_type/2,
- decode_open_type/2,decode_open_type/3,
- decode_open_type_as_binary/2,
- decode_open_type_as_binary/3]).
-
--export([decode_primitive_incomplete/2,decode_selective/2]).
-
-% the encoding of class of tag bits 8 and 7
--define(UNIVERSAL, 0).
--define(APPLICATION, 16#40).
--define(CONTEXT, 16#80).
--define(PRIVATE, 16#C0).
-
-%%% primitive or constructed encoding % bit 6
--define(PRIMITIVE, 0).
--define(CONSTRUCTED, 2#00100000).
-
-%%% The tag-number for universal types
--define(N_BOOLEAN, 1).
--define(N_INTEGER, 2).
--define(N_BIT_STRING, 3).
--define(N_OCTET_STRING, 4).
--define(N_NULL, 5).
--define(N_OBJECT_IDENTIFIER, 6).
--define(N_OBJECT_DESCRIPTOR, 7).
--define(N_EXTERNAL, 8).
--define(N_REAL, 9).
--define(N_ENUMERATED, 10).
--define(N_EMBEDDED_PDV, 11).
--define(N_SEQUENCE, 16).
--define(N_SET, 17).
--define(N_NumericString, 18).
--define(N_PrintableString, 19).
--define(N_TeletexString, 20).
--define(N_VideotexString, 21).
--define(N_IA5String, 22).
--define(N_UTCTime, 23).
--define(N_GeneralizedTime, 24).
--define(N_GraphicString, 25).
--define(N_VisibleString, 26).
--define(N_GeneralString, 27).
--define(N_UniversalString, 28).
--define(N_BMPString, 30).
-
-
-% the complete tag-word of built-in types
--define(T_BOOLEAN, ?UNIVERSAL bor ?PRIMITIVE bor 1).
--define(T_INTEGER, ?UNIVERSAL bor ?PRIMITIVE bor 2).
--define(T_BIT_STRING, ?UNIVERSAL bor ?PRIMITIVE bor 3). % can be CONSTRUCTED
--define(T_OCTET_STRING, ?UNIVERSAL bor ?PRIMITIVE bor 4). % can be CONSTRUCTED
--define(T_NULL, ?UNIVERSAL bor ?PRIMITIVE bor 5).
--define(T_OBJECT_IDENTIFIER,?UNIVERSAL bor ?PRIMITIVE bor 6).
--define(T_OBJECT_DESCRIPTOR,?UNIVERSAL bor ?PRIMITIVE bor 7).
--define(T_EXTERNAL, ?UNIVERSAL bor ?PRIMITIVE bor 8).
--define(T_REAL, ?UNIVERSAL bor ?PRIMITIVE bor 9).
--define(T_ENUMERATED, ?UNIVERSAL bor ?PRIMITIVE bor 10).
--define(T_EMBEDDED_PDV, ?UNIVERSAL bor ?PRIMITIVE bor 11).
--define(T_SEQUENCE, ?UNIVERSAL bor ?CONSTRUCTED bor 16).
--define(T_SET, ?UNIVERSAL bor ?CONSTRUCTED bor 17).
--define(T_NumericString, ?UNIVERSAL bor ?PRIMITIVE bor 18). %can be constructed
--define(T_PrintableString, ?UNIVERSAL bor ?PRIMITIVE bor 19). %can be constructed
--define(T_TeletexString, ?UNIVERSAL bor ?PRIMITIVE bor 20). %can be constructed
--define(T_VideotexString, ?UNIVERSAL bor ?PRIMITIVE bor 21). %can be constructed
--define(T_IA5String, ?UNIVERSAL bor ?PRIMITIVE bor 22). %can be constructed
--define(T_UTCTime, ?UNIVERSAL bor ?PRIMITIVE bor 23).
--define(T_GeneralizedTime, ?UNIVERSAL bor ?PRIMITIVE bor 24).
--define(T_GraphicString, ?UNIVERSAL bor ?PRIMITIVE bor 25). %can be constructed
--define(T_VisibleString, ?UNIVERSAL bor ?PRIMITIVE bor 26). %can be constructed
--define(T_GeneralString, ?UNIVERSAL bor ?PRIMITIVE bor 27). %can be constructed
--define(T_UniversalString, ?UNIVERSAL bor ?PRIMITIVE bor 28). %can be constructed
--define(T_BMPString, ?UNIVERSAL bor ?PRIMITIVE bor 30). %can be constructed
-
-% encode(Tlv={_Tag={?PRIMITIVE,_},_VList}) ->
-% encode_primitive(Tlv);
-% encode(Tlv) ->
-% encode_constructed(Tlv).
-
-encode(Tlv) ->
- encode(Tlv,erlang).
-
-encode(Tlv,_) when is_binary(Tlv) ->
- Tlv;
-encode([Tlv],Method) ->
- encode(Tlv,Method);
-encode(Tlv, nif) ->
- asn1rt_nif:encode_ber_tlv(Tlv);
-encode(Tlv, _) ->
- encode_erl(Tlv).
-
-encode_erl({TlvTag,TlvVal}) when is_list(TlvVal) ->
- %% constructed form of value
- encode_tlv(TlvTag,TlvVal,?CONSTRUCTED);
-encode_erl({TlvTag,TlvVal}) ->
- encode_tlv(TlvTag,TlvVal,?PRIMITIVE).
-
-encode_tlv(TlvTag,TlvVal,Form) ->
- Tag = encode_tlv_tag(TlvTag,Form),
- {Val,VLen} = encode_tlv_val(TlvVal),
- {Len,_LLen} = encode_length(VLen),
- BinLen = list_to_binary(Len),
- <<Tag/binary,BinLen/binary,Val/binary>>.
-
-encode_tlv_tag(ClassTagNo,Form) ->
- Class = ClassTagNo bsr 16,
- encode_tag_val({Class bsl 6,Form,(ClassTagNo - (Class bsl 16))}).
-
-encode_tlv_val(TlvL) when is_list(TlvL) ->
- encode_tlv_list(TlvL,[]);
-encode_tlv_val(Bin) ->
- {Bin,size(Bin)}.
-
-encode_tlv_list([Tlv|Tlvs],Acc) ->
- EncTlv = encode_erl(Tlv),
- encode_tlv_list(Tlvs,[EncTlv|Acc]);
-encode_tlv_list([],Acc) ->
- Bin=list_to_binary(lists:reverse(Acc)),
- {Bin,size(Bin)}.
-
-decode(B) ->
- decode(B, erlang).
-
-%% asn1-1.7
-decode(B, nif) ->
- case asn1rt_nif:decode_ber_tlv(B) of
- {error, Reason} -> handle_error(Reason, B);
- Else -> Else
- end;
-decode(B,erlang) when is_binary(B) ->
- decode_primitive(B);
-decode(Tlv,erlang) ->
- {Tlv,<<>>}.
-
-handle_error([],_)->
- exit({error,{asn1,{"memory allocation problem"}}});
-handle_error({$1,_},L) -> % error in nif
- exit({error,{asn1,L}});
-handle_error({$2,T},L) -> % error in nif due to wrong tag
- exit({error,{asn1,{"bad tag after byte:",error_pos(T),L}}});
-handle_error({$3,T},L) -> % error in driver due to length error
- exit({error,{asn1,{"bad length field after byte:",
- error_pos(T),L}}});
-handle_error({$4,T},L) -> % error in driver due to indefinite length error
- exit({error,{asn1,
- {"indefinite length without end bytes after byte:",
- error_pos(T),L}}});
-handle_error({$5,T},L) -> % error in driver due to indefinite length error
- exit({error,{asn1,{"bad encoded value after byte:",
- error_pos(T),L}}});
-handle_error(ErrL,L) ->
- exit({error,{asn1,ErrL,L}}).
-
-error_pos([]) ->
- "unknown position";
-error_pos([B])->
- B;
-error_pos([B|Bs]) ->
- BS = 8 * length(Bs),
- B bsl BS + error_pos(Bs).
-
-decode_primitive(Bin) ->
- {Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
- case Form of
- 1 -> % constructed
- {{TagNo,decode_constructed(V)},Rest};
- 0 -> % primitive
- {{TagNo,V},Rest};
- 2 -> % constructed indefinite
- {Vlist,Rest2} = decode_constructed_indefinite(V,[]),
- {{TagNo,Vlist},Rest2}
- end.
-
-decode_constructed(Bin) when byte_size(Bin) =:= 0 ->
- [];
-decode_constructed(Bin) ->
- {Tlv,Rest} = decode_primitive(Bin),
- [Tlv|decode_constructed(Rest)].
-
-decode_constructed_indefinite(<<0,0,Rest/binary>>,Acc) ->
- {lists:reverse(Acc),Rest};
-decode_constructed_indefinite(Bin,Acc) ->
- {Tlv,Rest} = decode_primitive(Bin),
- decode_constructed_indefinite(Rest, [Tlv|Acc]).
-
-%% decode_primitive_incomplete/2 decodes an encoded message incomplete
-%% by help of the pattern attribute (first argument).
-decode_primitive_incomplete([[default,TagNo]],Bin) -> %default
- case decode_tag_and_length(Bin) of
- {Form,TagNo,V,Rest} ->
- decode_incomplete2(Form,TagNo,V,[],Rest);
- _ ->
- %{asn1_DEFAULT,Bin}
- asn1_NOVALUE
- end;
-decode_primitive_incomplete([[default,TagNo,Directives]],Bin) -> %default, constructed type, Directives points into this type
- case decode_tag_and_length(Bin) of
- {Form,TagNo,V,Rest} ->
- decode_incomplete2(Form,TagNo,V,Directives,Rest);
- _ ->
- %{asn1_DEFAULT,Bin}
- asn1_NOVALUE
- end;
-decode_primitive_incomplete([[opt,TagNo]],Bin) -> %optional
- case decode_tag_and_length(Bin) of
- {Form,TagNo,V,Rest} ->
- decode_incomplete2(Form,TagNo,V,[],Rest);
- _ ->
- %{{TagNo,asn1_NOVALUE},Bin}
- asn1_NOVALUE
- end;
-decode_primitive_incomplete([[opt,TagNo,Directives]],Bin) -> %optional
- case decode_tag_and_length(Bin) of
- {Form,TagNo,V,Rest} ->
- decode_incomplete2(Form,TagNo,V,Directives,Rest);
- _ ->
- %{{TagNo,asn1_NOVALUE},Bin}
- asn1_NOVALUE
- end;
-%% An optional that shall be undecoded
-decode_primitive_incomplete([[opt_undec,Tag]],Bin) ->
- case decode_tag_and_length(Bin) of
- {_,Tag,_,_} ->
- decode_incomplete_bin(Bin);
- _ ->
- asn1_NOVALUE
- end;
-%% A choice alternative that shall be undecoded
-decode_primitive_incomplete([[alt_undec,TagNo]|RestAlts],Bin) ->
-% decode_incomplete_bin(Bin);
-% case decode_tlv(Bin) of
- case decode_tag_and_length(Bin) of
-% {{_Form,TagNo,_Len,_V},_R} ->
- {_,TagNo,_,_} ->
- decode_incomplete_bin(Bin);
- _ ->
- decode_primitive_incomplete(RestAlts,Bin)
- end;
-decode_primitive_incomplete([[alt,TagNo]|RestAlts],Bin) ->
- case decode_tag_and_length(Bin) of
- {_Form,TagNo,V,Rest} ->
- {{TagNo,V},Rest};
- _ ->
- decode_primitive_incomplete(RestAlts,Bin)
- end;
-decode_primitive_incomplete([[alt,TagNo,Directives]|RestAlts],Bin) ->
- case decode_tag_and_length(Bin) of
- {Form,TagNo,V,Rest} ->
- decode_incomplete2(Form,TagNo,V,Directives,Rest);
- _ ->
- decode_primitive_incomplete(RestAlts,Bin)
- end;
-decode_primitive_incomplete([[alt_parts,TagNo]],Bin) ->
- case decode_tag_and_length(Bin) of
- {_Form,TagNo,V,Rest} ->
- {{TagNo,V},Rest};
- _ ->
- asn1_NOVALUE
- end;
-decode_primitive_incomplete([[alt_parts,TagNo]|RestAlts],Bin) ->
- case decode_tag_and_length(Bin) of
- {_Form,TagNo,V,Rest} ->
- {{TagNo,decode_parts_incomplete(V)},Rest};
- _ ->
- decode_primitive_incomplete(RestAlts,Bin)
- end;
-decode_primitive_incomplete([[undec,_TagNo]|_RestTag],Bin) -> %incomlete decode
- decode_incomplete_bin(Bin);
-decode_primitive_incomplete([[parts,TagNo]|_RestTag],Bin) ->
- case decode_tag_and_length(Bin) of
- {_Form,TagNo,V,Rest} ->
- {{TagNo,decode_parts_incomplete(V)},Rest};
- Err ->
- {error,{asn1,"tag failure",TagNo,Err}}
- end;
-decode_primitive_incomplete([mandatory|RestTag],Bin) ->
- {Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
- decode_incomplete2(Form,TagNo,V,RestTag,Rest);
-%% A choice that is a toptype or a mandatory component of a
-%% SEQUENCE or SET.
-decode_primitive_incomplete([[mandatory|Directives]],Bin) ->
- {Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
- decode_incomplete2(Form,TagNo,V,Directives,Rest);
-decode_primitive_incomplete([],Bin) ->
- decode_primitive(Bin).
-
-%% decode_parts_incomplete/1 receives a number of values encoded in
-%% sequence and returns the parts as unencoded binaries
-decode_parts_incomplete(<<>>) ->
- [];
-decode_parts_incomplete(Bin) ->
- {ok,Rest} = skip_tag(Bin),
- {ok,Rest2} = skip_length_and_value(Rest),
- LenPart = size(Bin) - size(Rest2),
- <<Part:LenPart/binary,RestBin/binary>> = Bin,
- [Part|decode_parts_incomplete(RestBin)].
-
-
-%% decode_incomplete2 checks if V is a value of a constructed or
-%% primitive type, and continues the decode propeerly.
-decode_incomplete2(_Form=2,TagNo,V,TagMatch,_) ->
- %% constructed indefinite length
- {Vlist,Rest2} = decode_constr_indef_incomplete(TagMatch,V,[]),
- {{TagNo,Vlist},Rest2};
-decode_incomplete2(1,TagNo,V,[TagMatch],Rest) when is_list(TagMatch) ->
- {{TagNo,decode_constructed_incomplete(TagMatch,V)},Rest};
-decode_incomplete2(1,TagNo,V,TagMatch,Rest) ->
- {{TagNo,decode_constructed_incomplete(TagMatch,V)},Rest};
-decode_incomplete2(0,TagNo,V,_TagMatch,Rest) ->
- {{TagNo,V},Rest}.
-
-decode_constructed_incomplete([Tags=[Ts]],Bin) when is_list(Ts) ->
- decode_constructed_incomplete(Tags,Bin);
-decode_constructed_incomplete(_TagMatch,<<>>) ->
- [];
-decode_constructed_incomplete([mandatory|RestTag],Bin) ->
- {Tlv,Rest} = decode_primitive(Bin),
- [Tlv|decode_constructed_incomplete(RestTag,Rest)];
-decode_constructed_incomplete(Directives=[[Alt,_]|_],Bin)
- when Alt == alt_undec; Alt == alt; Alt == alt_parts ->
- {_Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
- case incomplete_choice_alt(TagNo,Directives) of
- {alt_undec,_} ->
- LenA = size(Bin)-size(Rest),
- <<A:LenA/binary,Rest/binary>> = Bin,
- A;
- {alt,InnerDirectives} ->
- {Tlv,Rest} = decode_primitive_incomplete(InnerDirectives,V),
- {TagNo,Tlv};
- {alt_parts,_} ->
- [{TagNo,decode_parts_incomplete(V)}];
- no_match -> %% if a choice alternative was encoded that
- %% was not specified in the config file,
- %% thus decode component anonomous.
- {Tlv,_}=decode_primitive(Bin),
- Tlv
- end;
-decode_constructed_incomplete([TagNo|RestTag],Bin) ->
-%% {Tlv,Rest} = decode_primitive_incomplete([TagNo],Bin),
- case decode_primitive_incomplete([TagNo],Bin) of
- {Tlv,Rest} ->
- [Tlv|decode_constructed_incomplete(RestTag,Rest)];
- asn1_NOVALUE ->
- decode_constructed_incomplete(RestTag,Bin)
- end;
-decode_constructed_incomplete([],Bin) ->
- {Tlv,Rest}=decode_primitive(Bin),
- [Tlv|decode_constructed_incomplete([],Rest)].
-
-decode_constr_indef_incomplete(_TagMatch,<<0,0,Rest/binary>>,Acc) ->
- {lists:reverse(Acc),Rest};
-decode_constr_indef_incomplete([Tag|RestTags],Bin,Acc) ->
-% {Tlv,Rest} = decode_primitive_incomplete([Tag],Bin),
- case decode_primitive_incomplete([Tag],Bin) of
- {Tlv,Rest} ->
- decode_constr_indef_incomplete(RestTags,Rest,[Tlv|Acc]);
- asn1_NOVALUE ->
- decode_constr_indef_incomplete(RestTags,Bin,Acc)
- end.
-
-
-decode_incomplete_bin(Bin) ->
- {ok,Rest} = skip_tag(Bin),
- {ok,Rest2} = skip_length_and_value(Rest),
- IncLen = size(Bin) - size(Rest2),
- <<IncBin:IncLen/binary,Ret/binary>> = Bin,
- {IncBin,Ret}.
-
-incomplete_choice_alt(TagNo,[[Alt,TagNo]|Directives]) ->
- {Alt,Directives};
-incomplete_choice_alt(TagNo,[D]) when is_list(D) ->
- incomplete_choice_alt(TagNo,D);
-incomplete_choice_alt(TagNo,[_H|Directives]) ->
- incomplete_choice_alt(TagNo,Directives);
-incomplete_choice_alt(_,[]) ->
- no_match.
-
-
-
-
-%% decode_selective(Pattern, Binary) the first argument is a pattern that tells
-%% what to do with the next element the second is the BER encoded
-%% message as a binary
-%% Returns {ok,Value} or {error,Reason}
-%% Value is a binary that in turn must be decoded to get the decoded
-%% value.
-decode_selective([],Binary) ->
- {ok,Binary};
-decode_selective([skip|RestPattern],Binary)->
- {ok,RestBinary}=skip_tag(Binary),
- {ok,RestBinary2}=skip_length_and_value(RestBinary),
- decode_selective(RestPattern,RestBinary2);
-decode_selective([[skip_optional,Tag]|RestPattern],Binary) ->
- case skip_optional_tag(Tag,Binary) of
- {ok,RestBinary} ->
- {ok,RestBinary2}=skip_length_and_value(RestBinary),
- decode_selective(RestPattern,RestBinary2);
- missing ->
- decode_selective(RestPattern,Binary)
- end;
-decode_selective([[choosen,Tag]],Binary) ->
- return_value(Tag,Binary);
-% case skip_optional_tag(Tag,Binary) of %may be optional/default
-% {ok,RestBinary} ->
-% {ok,Value} = get_value(RestBinary);
-% missing ->
-% {ok,<<>>}
-% end;
-decode_selective([[choosen,Tag]|RestPattern],Binary) ->
- case skip_optional_tag(Tag,Binary) of
- {ok,RestBinary} ->
- {ok,Value} = get_value(RestBinary),
- decode_selective(RestPattern,Value);
- missing ->
- {ok,<<>>}
- end;
-decode_selective(P,_) ->
- {error,{asn1,{partial_decode,"bad pattern",P}}}.
-
-return_value(Tag,Binary) ->
- {ok,{Tag,RestBinary}}=get_tag(Binary),
- {ok,{LenVal,_RestBinary2}} = get_length_and_value(RestBinary),
- {ok,<<Tag/binary,LenVal/binary>>}.
-
-
-%% skip_tag and skip_length_and_value are rutines used both by
-%% decode_partial_incomplete and decode_selective (decode/2).
-
-skip_tag(<<_:3,31:5,Rest/binary>>)->
- skip_long_tag(Rest);
-skip_tag(<<_:3,_Tag:5,Rest/binary>>) ->
- {ok,Rest}.
-
-skip_long_tag(<<1:1,_:7,Rest/binary>>) ->
- skip_long_tag(Rest);
-skip_long_tag(<<0:1,_:7,Rest/binary>>) ->
- {ok,Rest}.
-
-skip_optional_tag(<<>>,Binary) ->
- {ok,Binary};
-skip_optional_tag(<<Tag,RestTag/binary>>,<<Tag,Rest/binary>>) ->
- skip_optional_tag(RestTag,Rest);
-skip_optional_tag(_,_) ->
- missing.
-
-
-
-
-skip_length_and_value(Binary) ->
- case decode_length(Binary) of
- {indefinite,RestBinary} ->
- skip_indefinite_value(RestBinary);
- {Length,RestBinary} ->
- <<_:Length/unit:8,Rest/binary>> = RestBinary,
- {ok,Rest}
- end.
-
-skip_indefinite_value(<<0,0,Rest/binary>>) ->
- {ok,Rest};
-skip_indefinite_value(Binary) ->
- {ok,RestBinary}=skip_tag(Binary),
- {ok,RestBinary2} = skip_length_and_value(RestBinary),
- skip_indefinite_value(RestBinary2).
-
-get_value(Binary) ->
- case decode_length(Binary) of
- {indefinite,RestBinary} ->
- get_indefinite_value(RestBinary,[]);
- {Length,RestBinary} ->
- <<Value:Length/binary,_Rest/binary>> = RestBinary,
- {ok,Value}
- end.
-
-get_indefinite_value(<<0,0,_Rest/binary>>,Acc) ->
- {ok,list_to_binary(lists:reverse(Acc))};
-get_indefinite_value(Binary,Acc) ->
- {ok,{Tag,RestBinary}}=get_tag(Binary),
- {ok,{LenVal,RestBinary2}} = get_length_and_value(RestBinary),
- get_indefinite_value(RestBinary2,[LenVal,Tag|Acc]).
-
-get_tag(<<H:1/binary,Rest/binary>>) ->
- case H of
- <<_:3,31:5>> ->
- get_long_tag(Rest,[H]);
- _ -> {ok,{H,Rest}}
- end.
-get_long_tag(<<H:1/binary,Rest/binary>>,Acc) ->
- case H of
- <<0:1,_:7>> ->
- {ok,{list_to_binary(lists:reverse([H|Acc])),Rest}};
- _ ->
- get_long_tag(Rest,[H|Acc])
- end.
-
-get_length_and_value(Bin = <<0:1,Length:7,_T/binary>>) ->
- <<Len,Val:Length/binary,Rest/binary>> = Bin,
- {ok,{<<Len,Val/binary>>, Rest}};
-get_length_and_value(Bin = <<1:1,0:7,_T/binary>>) ->
- get_indefinite_length_and_value(Bin);
-get_length_and_value(<<1:1,LL:7,T/binary>>) ->
- <<Length:LL/unit:8,Rest/binary>> = T,
- <<Value:Length/binary,Rest2/binary>> = Rest,
- {ok,{<<1:1,LL:7,Length:LL/unit:8,Value/binary>>,Rest2}}.
-
-get_indefinite_length_and_value(<<H,T/binary>>) ->
- get_indefinite_length_and_value(T,[H]).
-
-get_indefinite_length_and_value(<<0,0,Rest/binary>>,Acc) ->
- {ok,{list_to_binary(lists:reverse(Acc)),Rest}};
-get_indefinite_length_and_value(Binary,Acc) ->
- {ok,{Tag,RestBinary}}=get_tag(Binary),
- {ok,{LenVal,RestBinary2}}=get_length_and_value(RestBinary),
- get_indefinite_length_and_value(RestBinary2,[LenVal,Tag|Acc]).
-
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% match_tags takes a Tlv (Tag, Length, Value) structure and matches
-%% it with the tags in TagList. If the tags does not match the function
-%% crashes otherwise it returns the remaining Tlv after that the tags have
-%% been removed.
-%%
-%% match_tags(Tlv, TagList)
-%%
-
-match_tags({T,V},[T]) ->
- V;
-match_tags({T,V}, [T|Tt]) ->
- match_tags(V,Tt);
-match_tags([{T,V}],[T|Tt]) ->
- match_tags(V, Tt);
-match_tags(Vlist = [{T,_V}|_], [T]) ->
- Vlist;
-match_tags(Tlv, []) ->
- Tlv;
-match_tags(Tlv = {Tag,_V},[T|_Tt]) ->
- exit({error,{asn1,{wrong_tag,{{expected,T},{got,Tag,Tlv}}}}}).
-
-%%%
-%% skips components that do not match a tag in Tags
-skip_ExtensionAdditions([],_Tags) ->
- [];
-skip_ExtensionAdditions(TLV=[{Tag,_}|Rest],Tags) ->
- case [X||X=T<-Tags,T==Tag] of
- [] ->
- %% skip this TLV and continue with next
- skip_ExtensionAdditions(Rest,Tags);
- _ ->
- TLV
- end.
-
-
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-%% Optionals, preset not filled optionals with asn1_NOVALUE
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-
-fixoptionals(OptList,Val) when is_list(Val) ->
- fixoptionals(OptList,Val,1,[],[]).
-
-fixoptionals([{Name,Pos}|Ot],[{Name,Val}|Vt],_Opt,Acc1,Acc2) ->
- fixoptionals(Ot,Vt,Pos+1,[1|Acc1],[{Name,Val}|Acc2]);
-fixoptionals([{_Name,Pos}|Ot],V,Pos,Acc1,Acc2) ->
- fixoptionals(Ot,V,Pos+1,[0|Acc1],[asn1_NOVALUE|Acc2]);
-fixoptionals(O,[Vh|Vt],Pos,Acc1,Acc2) ->
- fixoptionals(O,Vt,Pos+1,Acc1,[Vh|Acc2]);
-fixoptionals([],[Vh|Vt],Pos,Acc1,Acc2) ->
- fixoptionals([],Vt,Pos+1,Acc1,[Vh|Acc2]);
-fixoptionals([],[],_,_Acc1,Acc2) ->
- % return Val as a record
- list_to_tuple([asn1_RECORDNAME|lists:reverse(Acc2)]).
-
-
-%%encode_tag(TagClass(?UNI, APP etc), Form (?PRIM etx), TagInteger) ->
-%% 8bit Int | binary
-encode_tag_val({Class, Form, TagNo}) when (TagNo =< 30) ->
- <<(Class bsr 6):2,(Form bsr 5):1,TagNo:5>>;
-
-encode_tag_val({Class, Form, TagNo}) ->
- {Octets,_Len} = mk_object_val(TagNo),
- BinOct = list_to_binary(Octets),
- <<(Class bsr 6):2, (Form bsr 5):1, 31:5,BinOct/binary>>.
-
-
-%%===============================================================================
-%% Decode a tag
-%%
-%% decode_tag(OctetListBuffer) -> {{Form, (Class bsl 16)+ TagNo}, RestOfBuffer, RemovedBytes}
-%%===============================================================================
-
-decode_tag_and_length(<<Class:2, Form:1, TagNo:5, 0:1, Length:7, V:Length/binary, RestBuffer/binary>>) when TagNo < 31 ->
- {Form, (Class bsl 16) + TagNo, V, RestBuffer};
-decode_tag_and_length(<<Class:2, 1:1, TagNo:5, 1:1, 0:7, T/binary>>) when TagNo < 31 ->
- {2, (Class bsl 16) + TagNo, T, <<>>};
-decode_tag_and_length(<<Class:2, Form:1, TagNo:5, 1:1, LL:7, Length:LL/unit:8,V:Length/binary, T/binary>>) when TagNo < 31 ->
- {Form, (Class bsl 16) + TagNo, V, T};
-decode_tag_and_length(<<Class:2, Form:1, 31:5, 0:1, TagNo:7, 0:1, Length:7, V:Length/binary, RestBuffer/binary>>) ->
- {Form, (Class bsl 16) + TagNo, V, RestBuffer};
-decode_tag_and_length(<<Class:2, 1:1, 31:5, 0:1, TagNo:7, 1:1, 0:7, T/binary>>) ->
- {2, (Class bsl 16) + TagNo, T, <<>>};
-decode_tag_and_length(<<Class:2, Form:1, 31:5, 0:1, TagNo:7, 1:1, LL:7, Length:LL/unit:8, V:Length/binary, T/binary>>) ->
- {Form, (Class bsl 16) + TagNo, V, T};
-decode_tag_and_length(<<Class:2, Form:1, 31:5, 1:1, TagPart1:7, 0:1, TagPartLast, Buffer/binary>>) ->
- TagNo = (TagPart1 bsl 7) bor TagPartLast,
- {Length, RestBuffer} = decode_length(Buffer),
- << V:Length/binary, RestBuffer2/binary>> = RestBuffer,
- {Form, (Class bsl 16) + TagNo, V, RestBuffer2};
-decode_tag_and_length(<<Class:2, Form:1, 31:5, Buffer/binary>>) ->
- {TagNo, Buffer1} = decode_tag(Buffer, 0),
- {Length, RestBuffer} = decode_length(Buffer1),
- << V:Length/binary, RestBuffer2/binary>> = RestBuffer,
- {Form, (Class bsl 16) + TagNo, V, RestBuffer2}.
-
-
-
-%% last partial tag
-decode_tag(<<0:1,PartialTag:7, Buffer/binary>>, TagAck) ->
- TagNo = (TagAck bsl 7) bor PartialTag,
- %%<<TagNo>> = <<TagAck:1, PartialTag:7>>,
- {TagNo, Buffer};
-% more tags
-decode_tag(<<_:1,PartialTag:7, Buffer/binary>>, TagAck) ->
- TagAck1 = (TagAck bsl 7) bor PartialTag,
- %%<<TagAck1:16>> = <<TagAck:1, PartialTag:7,0:8>>,
- decode_tag(Buffer, TagAck1).
-
-
-%%=======================================================================
-%%
-%% Encode all tags in the list Tags and return a possibly deep list of
-%% bytes with tag and length encoded
-%% The taglist must be in reverse order (fixed by the asn1 compiler)
-%% e.g [T1,T2] will result in
-%% {[EncodedT2,EncodedT1|BytesSoFar],LenSoFar+LenT2+LenT1}
-%%
-
-encode_tags([Tag|Trest], BytesSoFar, LenSoFar) ->
-% remove {Bytes1,L1} = encode_one_tag(Tag),
- {Bytes2,L2} = encode_length(LenSoFar),
- encode_tags(Trest, [Tag,Bytes2|BytesSoFar],
- LenSoFar + size(Tag) + L2);
-encode_tags([], BytesSoFar, LenSoFar) ->
- {BytesSoFar,LenSoFar}.
-
-encode_tags(TagIn, {BytesSoFar,LenSoFar}) ->
- encode_tags(TagIn, BytesSoFar, LenSoFar).
-
-% encode_one_tag(#tag{class=Class,number=No,type=Type, form = Form}) ->
-% NewForm = case Type of
-% 'EXPLICIT' ->
-% ?CONSTRUCTED;
-% _ ->
-% Form
-% end,
-% Bytes = encode_tag_val({Class,NewForm,No}),
-% {Bytes,size(Bytes)}.
-
-
-%%===============================================================================
-%%
-%% This comment is valid for all the encode/decode functions
-%%
-%% C = Constraint -> typically {'ValueRange',LowerBound,UpperBound}
-%% used for PER-coding but not for BER-coding.
-%%
-%% Val = Value. If Val is an atom then it is a symbolic integer value
-%% (i.e the atom must be one of the names in the NamedNumberList).
-%% The NamedNumberList is used to translate the atom to an integer value
-%% before encoding.
-%%
-%%===============================================================================
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_open_type(Value) -> io_list (i.e nested list with integers, binaries)
-%% Value = list of bytes of an already encoded value (the list must be flat)
-%% | binary
-
-%%
-encode_open_type(Val) when is_list(Val) ->
-% {Val,length(Val)};
- encode_open_type(list_to_binary(Val));
-encode_open_type(Val) ->
- {Val, size(Val)}.
-
-%%
-encode_open_type(Val, T) when is_list(Val) ->
- encode_open_type(list_to_binary(Val),T);
-encode_open_type(Val,[]) ->
- {Val, size(Val)};
-encode_open_type(Val,Tag) ->
- encode_tags(Tag,Val, size(Val)).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_open_type(Tlv, TagIn) -> Value
-%% Tlv = {Tag,V} | V where V -> binary()
-%% TagIn = [TagVal] where TagVal -> int()
-%% Value = binary with decoded data (which must be decoded again as some type)
-%%
-decode_open_type(Tlv, TagIn) ->
- decode_open_type(Tlv, TagIn, erlang).
-decode_open_type(Tlv, TagIn, Method) ->
- case match_tags(Tlv,TagIn) of
- Bin when is_binary(Bin) ->
- {InnerTlv,_} = decode(Bin,Method),
- InnerTlv;
- TlvBytes -> TlvBytes
- end.
-
-
-decode_open_type_as_binary(Tlv, TagIn) ->
- decode_open_type_as_binary(Tlv, TagIn, erlang).
-decode_open_type_as_binary(Tlv,TagIn, Method)->
- case match_tags(Tlv,TagIn) of
- V when is_binary(V) ->
- V;
- [Tlv2] -> encode(Tlv2, Method);
- Tlv2 -> encode(Tlv2, Method)
- end.
-
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-%% Boolean, ITU_T X.690 Chapter 8.2
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-
-%%===============================================================================
-%% encode_boolean(Integer, ReversedTagList) -> {[Octet],Len}
-%%===============================================================================
-
-encode_boolean({Name, Val}, TagIn) when is_atom(Name) ->
- encode_boolean(Val, TagIn);
-encode_boolean(true, TagIn) ->
- encode_tags(TagIn, [16#FF],1);
-encode_boolean(false, TagIn) ->
- encode_tags(TagIn, [0],1);
-encode_boolean(X,_) ->
- exit({error,{asn1, {encode_boolean, X}}}).
-
-
-%%===============================================================================
-%% decode_boolean(BuffList, HasTag, TotalLen) -> {true, Remain, RemovedBytes} |
-%% {false, Remain, RemovedBytes}
-%%===============================================================================
-decode_boolean(Tlv,TagIn) ->
- Val = match_tags(Tlv, TagIn),
- case Val of
- <<0:8>> ->
- false;
- <<_:8>> ->
- true;
- _ ->
- exit({error,{asn1, {decode_boolean, Val}}})
- end.
-
-
-%%===========================================================================
-%% Integer, ITU_T X.690 Chapter 8.3
-
-%% encode_integer(Constraint, Value, Tag) -> [octet list]
-%% encode_integer(Constraint, Name, NamedNumberList, Tag) -> [octet list]
-%% Value = INTEGER | {Name,INTEGER}
-%% Tag = tag | notag
-%%===========================================================================
-
-encode_integer(C, Val, Tag) when is_integer(Val) ->
- encode_tags(Tag, encode_integer(C, Val));
-encode_integer(C,{Name,Val},Tag) when is_atom(Name) ->
- encode_integer(C,Val,Tag);
-encode_integer(_C, Val, _Tag) ->
- exit({error,{asn1, {encode_integer, Val}}}).
-
-
-
-encode_integer(C, Val, NamedNumberList, Tag) when is_atom(Val) ->
- case lists:keysearch(Val, 1, NamedNumberList) of
- {value,{_, NewVal}} ->
- encode_tags(Tag, encode_integer(C, NewVal));
- _ ->
- exit({error,{asn1, {encode_integer_namednumber, Val}}})
- end;
-encode_integer(C,{_Name,Val},NamedNumberList,Tag) ->
- encode_integer(C,Val,NamedNumberList,Tag);
-encode_integer(C, Val, _NamedNumberList, Tag) ->
- encode_tags(Tag, encode_integer(C, Val)).
-
-
-encode_integer(_, Val) ->
- Bytes =
- if
- Val >= 0 ->
- encode_integer_pos(Val, []);
- true ->
- encode_integer_neg(Val, [])
- end,
- {Bytes,length(Bytes)}.
-
-encode_integer_pos(0, L=[B|_Acc]) when B < 128 ->
- L;
-encode_integer_pos(N, Acc) ->
- encode_integer_pos((N bsr 8), [N band 16#ff| Acc]).
-
-encode_integer_neg(-1, L=[B1|_T]) when B1 > 127 ->
- L;
-encode_integer_neg(N, Acc) ->
- encode_integer_neg(N bsr 8, [N band 16#ff|Acc]).
-
-%%===============================================================================
-%% decode integer
-%% (Buffer, Range, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
-%% (Buffer, Range, NamedNumberList, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
-%%===============================================================================
-
-decode_integer(Tlv,Range,NamedNumberList,TagIn) ->
- V = match_tags(Tlv,TagIn),
- Int = decode_integer(V),
- range_check_integer(Int,Range),
- number2name(Int,NamedNumberList).
-
-decode_integer(Tlv,Range,TagIn) ->
- V = match_tags(Tlv, TagIn),
- Int = decode_integer(V),
- range_check_integer(Int,Range),
- Int.
-
-%% decoding postitive integer values.
-decode_integer(Bin = <<0:1,_:7,_/binary>>) ->
- Len = size(Bin),
-% <<Int:Len/unit:8,Buffer2/binary>> = Bin,
- <<Int:Len/unit:8>> = Bin,
- Int;
-%% decoding negative integer values.
-decode_integer(Bin = <<1:1,B2:7,Bs/binary>>) ->
- Len = size(Bin),
-% <<N:Len/unit:8,Buffer2/binary>> = <<B2,Bs/binary>>,
- <<N:Len/unit:8>> = <<B2,Bs/binary>>,
- Int = N - (1 bsl (8 * Len - 1)),
- Int.
-
-range_check_integer(Int,Range) ->
- case Range of
- [] -> % No length constraint
- Int;
- {Lb,Ub} when Int >= Lb, Ub >= Int -> % variable length constraint
- Int;
- Int -> % fixed value constraint
- Int;
- {_,_} ->
- exit({error,{asn1,{integer_range,Range,Int}}});
- SingleValue when is_integer(SingleValue) ->
- exit({error,{asn1,{integer_range,Range,Int}}});
- _ -> % some strange constraint that we don't support yet
- Int
- end.
-
-number2name(Int,[]) ->
- Int;
-number2name(Int,NamedNumberList) ->
- case lists:keysearch(Int, 2, NamedNumberList) of
- {value,{NamedVal, _}} ->
- NamedVal;
- _ ->
- Int
- end.
-
-
-%%============================================================================
-%% Enumerated value, ITU_T X.690 Chapter 8.4
-
-%% encode enumerated value
-%%============================================================================
-encode_enumerated(Val, TagIn) when is_integer(Val)->
- encode_tags(TagIn, encode_integer(false,Val));
-encode_enumerated({Name,Val}, TagIn) when is_atom(Name) ->
- encode_enumerated(Val, TagIn).
-
-%% The encode_enumerated functions below this line can be removed when the
-%% new code generation is stable. (the functions might have to be kept here
-%% a while longer for compatibility reasons)
-
-encode_enumerated(C, Val, {NamedNumberList,ExtList}, TagIn) when is_atom(Val) ->
- case catch encode_enumerated(C, Val, NamedNumberList, TagIn) of
- {'EXIT',_} -> encode_enumerated(C, Val, ExtList, TagIn);
- Result -> Result
- end;
-
-encode_enumerated(C, Val, NamedNumberList, TagIn) when is_atom(Val) ->
- case lists:keysearch(Val, 1, NamedNumberList) of
- {value, {_, NewVal}} ->
- encode_tags(TagIn, encode_integer(C, NewVal));
- _ ->
- exit({error,{asn1, {enumerated_not_in_range, Val}}})
- end;
-
-encode_enumerated(C, {asn1_enum, Val}, {_,_}, TagIn) when is_integer(Val) ->
- encode_tags(TagIn, encode_integer(C,Val));
-
-encode_enumerated(C, {Name,Val}, NamedNumberList, TagIn) when is_atom(Name) ->
- encode_enumerated(C, Val, NamedNumberList, TagIn);
-
-encode_enumerated(_C, Val, _NamedNumberList, _TagIn) ->
- exit({error,{asn1, {enumerated_not_namednumber, Val}}}).
-
-
-
-%%============================================================================
-%% decode enumerated value
-%% (Buffer, Range, NamedNumberList, HasTag, TotalLen) -> Value
-%%===========================================================================
-decode_enumerated(Tlv, Range, NamedNumberList, Tags) ->
- Buffer = match_tags(Tlv,Tags),
- decode_enumerated_notag(Buffer, Range, NamedNumberList, Tags).
-
-decode_enumerated_notag(Buffer, _Range, {NamedNumberList,ExtList}, _Tags) ->
-
- IVal = decode_integer2(size(Buffer), Buffer),
- case decode_enumerated1(IVal, NamedNumberList) of
- {asn1_enum,IVal} ->
- decode_enumerated1(IVal,ExtList);
- EVal ->
- EVal
- end;
-decode_enumerated_notag(Buffer, _Range, NNList, _Tags) ->
- IVal = decode_integer2(size(Buffer), Buffer),
- case decode_enumerated1(IVal, NNList) of
- {asn1_enum,_} ->
- exit({error,{asn1, {illegal_enumerated, IVal}}});
- EVal ->
- EVal
- end.
-
-decode_enumerated1(Val, NamedNumberList) ->
- %% it must be a named integer
- case lists:keysearch(Val, 2, NamedNumberList) of
- {value,{NamedVal, _}} ->
- NamedVal;
- _ ->
- {asn1_enum,Val}
- end.
-
-
-%%============================================================================
-%%
-%% Real value, ITU_T X.690 Chapter 8.5
-%%============================================================================
-%%
-%% encode real value
-%%============================================================================
-
-%% only base 2 internally so far!!
-encode_real(_C,0, TagIn) ->
- encode_tags(TagIn, {[],0});
-encode_real(_C,'PLUS-INFINITY', TagIn) ->
- encode_tags(TagIn, {[64],1});
-encode_real(_C,'MINUS-INFINITY', TagIn) ->
- encode_tags(TagIn, {[65],1});
-encode_real(C,Val, TagIn) when is_tuple(Val); is_list(Val) ->
- encode_tags(TagIn, encode_real(C,Val)).
-
-
-
-encode_real(C,Val) ->
- asn1rt_ber_bin:encode_real(C,Val).
-
-
-%%============================================================================
-%% decode real value
-%%
-%% decode_real([OctetBufferList], tuple|value, tag|notag) ->
-%% {{Mantissa, Base, Exp} | realval | PLUS-INFINITY | MINUS-INFINITY | 0,
-%% RestBuff}
-%%
-%% only for base 2 and 10 decoding sofar!!
-%%============================================================================
-
-decode_real(Tlv, Tags) ->
- Buffer = match_tags(Tlv,Tags),
- decode_real_notag(Buffer).
-
-decode_real_notag(Buffer) ->
- Len =
- case Buffer of
- Bin when is_binary(Bin) ->
- size(Bin);
- {_T,_V} ->
- exit({error,{asn1,{real_not_in_primitive_form,Buffer}}})
- end,
- {Val,_Rest,Len} = asn1rt_ber_bin:decode_real(Buffer,Len),
- Val.
-%% exit({error,{asn1, {unimplemented,real}}}).
-%% decode_real2(Buffer, Form, size(Buffer)).
-
-% decode_real2(Buffer, Form, Len) ->
-% <<First, Buffer2/binary>> = Buffer,
-% if
-% First =:= 2#01000000 -> {'PLUS-INFINITY', Buffer2};
-% First =:= 2#01000001 -> {'MINUS-INFINITY', Buffer2};
-% First =:= 2#00000000 -> {0, Buffer2};
-% true ->
-% %% have some check here to verify only supported bases (2)
-% <<B7:1,B6:1,B5_4:2,B3_2:2,B1_0:2>> = <<First>>,
-% Sign = B6,
-% Base =
-% case B5_4 of
-% 0 -> 2; % base 2, only one so far
-% _ -> exit({error,{asn1, {non_supported_base, First}}})
-% end,
-% ScalingFactor =
-% case B3_2 of
-% 0 -> 0; % no scaling so far
-% _ -> exit({error,{asn1, {non_supported_scaling, First}}})
-% end,
-
-% {FirstLen,Exp,Buffer3} =
-% case B1_0 of
-% 0 ->
-% <<_:1/unit:8,Buffer21/binary>> = Buffer2,
-% {2, decode_integer2(1, Buffer2),Buffer21};
-% 1 ->
-% <<_:2/unit:8,Buffer21/binary>> = Buffer2,
-% {3, decode_integer2(2, Buffer2)};
-% 2 ->
-% <<_:3/unit:8,Buffer21/binary>> = Buffer2,
-% {4, decode_integer2(3, Buffer2)};
-% 3 ->
-% <<ExpLen1,RestBuffer/binary>> = Buffer2,
-% <<_:ExpLen1/unit:8,RestBuffer2/binary>> = RestBuffer,
-% { ExpLen1 + 2,
-% decode_integer2(ExpLen1, RestBuffer, RemBytes1),
-% RestBuffer2}
-% end,
-% Length = Len - FirstLen,
-% <<LongInt:Length/unit:8,RestBuff/binary>> = Buffer3,
-% {Mantissa, Buffer4} =
-% if Sign =:= 0 ->
-
-% {LongInt, RestBuff};% sign plus,
-% true ->
-
-% {-LongInt, RestBuff}% sign minus
-% end,
-% case Form of
-% tuple ->
-% {Val,Buf,RemB} = Exp,
-% {{Mantissa, Base, {Val,Buf}}, Buffer4, RemBytes2+RemBytes3};
-% _value ->
-% comming
-% end
-% end.
-
-
-%%============================================================================
-%% Bitstring value, ITU_T X.690 Chapter 8.6
-%%
-%% encode bitstring value
-%%
-%% bitstring NamedBitList
-%% Val can be of:
-%% - [identifiers] where only named identifers are set to one,
-%% the Constraint must then have some information of the
-%% bitlength.
-%% - [list of ones and zeroes] all bits
-%% - integer value representing the bitlist
-%% C is constrint Len, only valid when identifiers
-%%============================================================================
-
-encode_bit_string(C,Bin={Unused,BinBits},NamedBitList,TagIn) when is_integer(Unused), is_binary(BinBits) ->
- encode_bin_bit_string(C,Bin,NamedBitList,TagIn);
-encode_bit_string(C, [FirstVal | RestVal], NamedBitList, TagIn) when is_atom(FirstVal) ->
- encode_bit_string_named(C, [FirstVal | RestVal], NamedBitList, TagIn);
-
-encode_bit_string(C, [{bit,X} | RestVal], NamedBitList, TagIn) ->
- encode_bit_string_named(C, [{bit,X} | RestVal], NamedBitList, TagIn);
-
-encode_bit_string(C, [FirstVal| RestVal], NamedBitList, TagIn) when is_integer(FirstVal) ->
- encode_bit_string_bits(C, [FirstVal | RestVal], NamedBitList, TagIn);
-
-encode_bit_string(_C, 0, _NamedBitList, TagIn) ->
- encode_tags(TagIn, <<0>>,1);
-
-encode_bit_string(_C, [], _NamedBitList, TagIn) ->
- encode_tags(TagIn, <<0>>,1);
-
-encode_bit_string(C, IntegerVal, NamedBitList, TagIn) when is_integer(IntegerVal) ->
- BitListVal = int_to_bitlist(IntegerVal),
- encode_bit_string_bits(C, BitListVal, NamedBitList, TagIn);
-
-encode_bit_string(C, {Name,BitList}, NamedBitList, TagIn) when is_atom(Name) ->
- encode_bit_string(C, BitList, NamedBitList, TagIn).
-
-
-
-int_to_bitlist(0) ->
- [];
-int_to_bitlist(Int) when is_integer(Int), Int >= 0 ->
- [Int band 1 | int_to_bitlist(Int bsr 1)].
-
-
-%%=================================================================
-%% Encode BIT STRING of the form {Unused,BinBits}.
-%% Unused is the number of unused bits in the last byte in BinBits
-%% and BinBits is a binary representing the BIT STRING.
-%%=================================================================
-encode_bin_bit_string(C,{Unused,BinBits},_NamedBitList,TagIn)->
- case get_constraint(C,'SizeConstraint') of
- no ->
- remove_unused_then_dotag(TagIn, Unused, BinBits);
- {_Min,Max} ->
- BBLen = (size(BinBits)*8)-Unused,
- if
- BBLen > Max ->
- exit({error,{asn1,
- {bitstring_length,
- {{was,BBLen},{maximum,Max}}}}});
- true ->
- remove_unused_then_dotag(TagIn, Unused, BinBits)
- end;
- Size ->
- case ((size(BinBits)*8)-Unused) of
- BBSize when BBSize =< Size ->
- remove_unused_then_dotag(TagIn, Unused, BinBits);
- BBSize ->
- exit({error,{asn1,
- {bitstring_length,
- {{was,BBSize},{should_be,Size}}}}})
- end
- end.
-
-remove_unused_then_dotag(TagIn,Unused,BinBits) ->
- case Unused of
- 0 when (size(BinBits) == 0) ->
- encode_tags(TagIn,<<0>>,1);
- 0 ->
- Bin = <<Unused,BinBits/binary>>,
- encode_tags(TagIn,Bin,size(Bin));
- Num ->
- N = (size(BinBits)-1),
- <<BBits:N/binary,LastByte>> = BinBits,
- encode_tags(TagIn,
- [Unused,binary_to_list(BBits) ++[(LastByte bsr Num) bsl Num]],
- 1+size(BinBits))
- end.
-
-
-%%=================================================================
-%% Encode named bits
-%%=================================================================
-
-encode_bit_string_named(C, [FirstVal | RestVal], NamedBitList, TagIn) ->
- ToSetPos = get_all_bitposes([FirstVal | RestVal], NamedBitList, []),
- Size =
- case get_constraint(C,'SizeConstraint') of
- no ->
- lists:max(ToSetPos)+1;
- {_Min,Max} ->
- Max;
- TSize ->
- TSize
- end,
- BitList = make_and_set_list(Size, ToSetPos, 0),
- {Len, Unused, OctetList} = encode_bitstring(BitList),
- encode_tags(TagIn, [Unused|OctetList],Len+1).
-
-
-%%----------------------------------------
-%% get_all_bitposes([list of named bits to set], named_bit_db, []) ->
-%% [sorted_list_of_bitpositions_to_set]
-%%----------------------------------------
-
-get_all_bitposes([{bit,ValPos}|Rest], NamedBitList, Ack) ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack ]);
-get_all_bitposes([Val | Rest], NamedBitList, Ack) when is_atom(Val) ->
- case lists:keysearch(Val, 1, NamedBitList) of
- {value, {_ValName, ValPos}} ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]);
- _ ->
- exit({error,{asn1, {bitstring_namedbit, Val}}})
- end;
-get_all_bitposes([], _NamedBitList, Ack) ->
- lists:sort(Ack).
-
-
-%%----------------------------------------
-%% make_and_set_list(Len of list to return, [list of positions to set to 1])->
-%% returns list of Len length, with all in SetPos set.
-%% in positioning in list the first element is 0, the second 1 etc.., but
-%% Len will make a list of length Len, not Len + 1.
-%% BitList = make_and_set_list(C, ToSetPos, 0),
-%%----------------------------------------
-
-make_and_set_list(0, [], _) -> [];
-make_and_set_list(0, _, _) ->
- exit({error,{asn1,bitstring_sizeconstraint}});
-make_and_set_list(Len, [XPos|SetPos], XPos) ->
- [1 | make_and_set_list(Len - 1, SetPos, XPos + 1)];
-make_and_set_list(Len, [Pos|SetPos], XPos) ->
- [0 | make_and_set_list(Len - 1, [Pos | SetPos], XPos + 1)];
-make_and_set_list(Len, [], XPos) ->
- [0 | make_and_set_list(Len - 1, [], XPos + 1)].
-
-
-
-
-
-
-%%=================================================================
-%% Encode bit string for lists of ones and zeroes
-%%=================================================================
-encode_bit_string_bits(C, BitListVal, _NamedBitList, TagIn) when is_list(BitListVal) ->
- case get_constraint(C,'SizeConstraint') of
- no ->
- {Len, Unused, OctetList} = encode_bitstring(BitListVal),
- %%add unused byte to the Len
- encode_tags(TagIn, [Unused | OctetList], Len+1);
- Constr={Min,_Max} when is_integer(Min) ->
- %% Max may be an integer or 'MAX'
- encode_constr_bit_str_bits(Constr,BitListVal,TagIn);
- {Constr={_,_},[]} ->%Constr={Min,Max}
- %% constraint with extension mark
- encode_constr_bit_str_bits(Constr,BitListVal,TagIn);
- Constr={{_,_},{_,_}} ->%{{Min1,Max1},{Min2,Max2}}
- %% constraint with extension mark
- encode_constr_bit_str_bits(Constr,BitListVal,TagIn);
- Size ->
- case length(BitListVal) of
- BitSize when BitSize == Size ->
- {Len, Unused, OctetList} = encode_bitstring(BitListVal),
- %%add unused byte to the Len
- encode_tags(TagIn, [Unused | OctetList], Len+1);
- BitSize when BitSize < Size ->
- PaddedList = pad_bit_list(Size-BitSize,BitListVal),
- {Len, Unused, OctetList} = encode_bitstring(PaddedList),
- %%add unused byte to the Len
- encode_tags(TagIn, [Unused | OctetList], Len+1);
- BitSize ->
- exit({error,{asn1,
- {bitstring_length, {{was,BitSize},{should_be,Size}}}}})
- end
-
- end.
-
-encode_constr_bit_str_bits({{_Min1,Max1},{Min2,Max2}},BitListVal,TagIn) ->
- BitLen = length(BitListVal),
- case BitLen of
- Len when Len > Max2 ->
- exit({error,{asn1,{bitstring_length,{{was,BitLen},
- {maximum,Max2}}}}});
- Len when Len > Max1, Len < Min2 ->
- exit({error,{asn1,{bitstring_length,{{was,BitLen},
- {not_allowed_interval,
- Max1,Min2}}}}});
- _ ->
- {Len, Unused, OctetList} = encode_bitstring(BitListVal),
- %%add unused byte to the Len
- encode_tags(TagIn, [Unused, OctetList], Len+1)
- end;
-encode_constr_bit_str_bits({Min,Max},BitListVal,TagIn) ->
- BitLen = length(BitListVal),
- if
- BitLen > Max ->
- exit({error,{asn1,{bitstring_length,{{was,BitLen},
- {maximum,Max}}}}});
- BitLen < Min ->
- exit({error,{asn1,{bitstring_length,{{was,BitLen},
- {minimum,Max}}}}});
- true ->
- {Len, Unused, OctetList} = encode_bitstring(BitListVal),
- %%add unused byte to the Len
- encode_tags(TagIn, [Unused, OctetList], Len+1)
- end.
-
-
-%% returns a list of length Size + length(BitListVal), with BitListVal
-%% as the most significant elements followed by padded zero elements
-pad_bit_list(Size,BitListVal) ->
- Tail = lists:duplicate(Size,0),
- lists:append(BitListVal,Tail).
-
-%%=================================================================
-%% Do the actual encoding
-%% ([bitlist]) -> {ListLen, UnusedBits, OctetList}
-%%=================================================================
-
-encode_bitstring([B8, B7, B6, B5, B4, B3, B2, B1 | Rest]) ->
- Val = (B8 bsl 7) bor (B7 bsl 6) bor (B6 bsl 5) bor (B5 bsl 4) bor
- (B4 bsl 3) bor (B3 bsl 2) bor (B2 bsl 1) bor B1,
- encode_bitstring(Rest, [Val], 1);
-encode_bitstring(Val) ->
- {Unused, Octet} = unused_bitlist(Val, 7, 0),
- {1, Unused, [Octet]}.
-
-encode_bitstring([B8, B7, B6, B5, B4, B3, B2, B1 | Rest], Ack, Len) ->
- Val = (B8 bsl 7) bor (B7 bsl 6) bor (B6 bsl 5) bor (B5 bsl 4) bor
- (B4 bsl 3) bor (B3 bsl 2) bor (B2 bsl 1) bor B1,
- encode_bitstring(Rest, [Ack | [Val]], Len + 1);
-%%even multiple of 8 bits..
-encode_bitstring([], Ack, Len) ->
- {Len, 0, Ack};
-%% unused bits in last octet
-encode_bitstring(Rest, Ack, Len) ->
-% io:format("uneven ~w ~w ~w~n",[Rest, Ack, Len]),
- {Unused, Val} = unused_bitlist(Rest, 7, 0),
- {Len + 1, Unused, [Ack | [Val]]}.
-
-%%%%%%%%%%%%%%%%%%
-%% unused_bitlist([list of ones and zeros <= 7], 7, []) ->
-%% {Unused bits, Last octet with bits moved to right}
-unused_bitlist([], Trail, Ack) ->
- {Trail + 1, Ack};
-unused_bitlist([Bit | Rest], Trail, Ack) ->
-%% io:format("trail Bit: ~w Rest: ~w Trail: ~w Ack:~w~n",[Bit, Rest, Trail, Ack]),
- unused_bitlist(Rest, Trail - 1, (Bit bsl Trail) bor Ack).
-
-
-%%============================================================================
-%% decode bitstring value
-%% (Buffer, Range, NamedNumberList, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
-%%============================================================================
-
-decode_compact_bit_string(Buffer, Range, NamedNumberList, Tags) ->
-% NewTags = new_tags(HasTag,#tag{class=?UNIVERSAL,number=?N_BIT_STRING}),
- decode_restricted_string(Buffer, Range, ?N_BIT_STRING, Tags,
- NamedNumberList,bin).
-
-decode_bit_string(Buffer, Range, NamedNumberList, Tags) ->
-% NewTags = new_tags(HasTag,#tag{class=?UNIVERSAL,number=?N_BIT_STRING}),
- decode_restricted_string(Buffer, Range, ?N_BIT_STRING, Tags,
- NamedNumberList,old).
-
-
-decode_bit_string2(<<0>>,_NamedNumberList,BinOrOld) ->
- case BinOrOld of
- bin ->
- {0,<<>>};
- _ ->
- []
- end;
-decode_bit_string2(<<Unused,Bits/binary>>,NamedNumberList,BinOrOld) ->
- case NamedNumberList of
- [] ->
- case BinOrOld of
- bin ->
- {Unused,Bits};
- _ ->
- decode_bitstring2(size(Bits), Unused, Bits)
- end;
- _ ->
- BitString = decode_bitstring2(size(Bits), Unused, Bits),
- decode_bitstring_NNL(BitString,NamedNumberList)
- end.
-
-%%----------------------------------------
-%% Decode the in buffer to bits
-%%----------------------------------------
-decode_bitstring2(1,Unused,<<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1,_/binary>>) ->
- lists:sublist([B7,B6,B5,B4,B3,B2,B1,B0],8-Unused);
-decode_bitstring2(Len, Unused,
- <<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1,Buffer/binary>>) ->
- [B7, B6, B5, B4, B3, B2, B1, B0 |
- decode_bitstring2(Len - 1, Unused, Buffer)].
-
-%%decode_bitstring2(1, Unused, Buffer) ->
-%% make_bits_of_int(hd(Buffer), 128, 8-Unused);
-%%decode_bitstring2(Len, Unused, [BitVal | Buffer]) ->
-%% [B7, B6, B5, B4, B3, B2, B1, B0] = make_bits_of_int(BitVal, 128, 8),
-%% [B7, B6, B5, B4, B3, B2, B1, B0 |
-%% decode_bitstring2(Len - 1, Unused, Buffer)].
-
-
-%%make_bits_of_int(_, _, 0) ->
-%% [];
-%%make_bits_of_int(BitVal, MaskVal, Unused) when Unused > 0 ->
-%% X = case MaskVal band BitVal of
-%% 0 -> 0 ;
-%% _ -> 1
-%% end,
-%% [X | make_bits_of_int(BitVal, MaskVal bsr 1, Unused - 1)].
-
-
-
-%%----------------------------------------
-%% Decode the bitlist to names
-%%----------------------------------------
-
-
-decode_bitstring_NNL(BitList,NamedNumberList) ->
- decode_bitstring_NNL(BitList,NamedNumberList,0,[]).
-
-
-decode_bitstring_NNL([],_,_No,Result) ->
- lists:reverse(Result);
-
-decode_bitstring_NNL([B|BitList],[{Name,No}|NamedNumberList],No,Result) ->
- if
- B == 0 ->
- decode_bitstring_NNL(BitList,NamedNumberList,No+1,Result);
- true ->
- decode_bitstring_NNL(BitList,NamedNumberList,No+1,[Name|Result])
- end;
-decode_bitstring_NNL([1|BitList],NamedNumberList,No,Result) ->
- decode_bitstring_NNL(BitList,NamedNumberList,No+1,[{bit,No}|Result]);
-decode_bitstring_NNL([0|BitList],NamedNumberList,No,Result) ->
- decode_bitstring_NNL(BitList,NamedNumberList,No+1,Result).
-
-
-%%============================================================================
-%% Octet string, ITU_T X.690 Chapter 8.7
-%%
-%% encode octet string
-%% The OctetList must be a flat list of integers in the range 0..255
-%% the function does not check this because it takes to much time
-%%============================================================================
-encode_octet_string(_C, OctetList, TagIn) when is_binary(OctetList) ->
- encode_tags(TagIn, OctetList, size(OctetList));
-encode_octet_string(_C, OctetList, TagIn) when is_list(OctetList) ->
- encode_tags(TagIn, OctetList, length(OctetList));
-encode_octet_string(C, {Name,OctetList}, TagIn) when is_atom(Name) ->
- encode_octet_string(C, OctetList, TagIn).
-
-
-%%============================================================================
-%% decode octet string
-%% (Buffer, Range, HasTag, TotalLen) -> {String, Remain, RemovedBytes}
-%%
-%% Octet string is decoded as a restricted string
-%%============================================================================
-decode_octet_string(Buffer, Range, Tags) ->
-% NewTags = new_tags(HasTag,#tag{class=?UNIVERSAL,number=?N_OCTET_STRING}),
- decode_restricted_string(Buffer, Range, ?N_OCTET_STRING,
- Tags, [], old).
-
-%%============================================================================
-%% Null value, ITU_T X.690 Chapter 8.8
-%%
-%% encode NULL value
-%%============================================================================
-
-encode_null({Name, _Val}, TagIn) when is_atom(Name) ->
- encode_tags(TagIn, [], 0);
-encode_null(_Val, TagIn) ->
- encode_tags(TagIn, [], 0).
-
-%%============================================================================
-%% decode NULL value
-%% (Buffer, HasTag, TotalLen) -> {NULL, Remain, RemovedBytes}
-%%============================================================================
-
-decode_null(Tlv, Tags) ->
- Val = match_tags(Tlv, Tags),
- case Val of
- <<>> ->
- 'NULL';
- _ ->
- exit({error,{asn1,{decode_null,Val}}})
- end.
-
-%%============================================================================
-%% Object identifier, ITU_T X.690 Chapter 8.19
-%%
-%% encode Object Identifier value
-%%============================================================================
-
-encode_object_identifier({Name,Val}, TagIn) when is_atom(Name) ->
- encode_object_identifier(Val, TagIn);
-encode_object_identifier(Val, TagIn) ->
- encode_tags(TagIn, e_object_identifier(Val)).
-
-e_object_identifier({'OBJECT IDENTIFIER', V}) ->
- e_object_identifier(V);
-e_object_identifier({Cname, V}) when is_atom(Cname), is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-e_object_identifier({Cname, V}) when is_atom(Cname), is_list(V) ->
- e_object_identifier(V);
-e_object_identifier(V) when is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-
-%%%%%%%%%%%%%%%
-%% e_object_identifier([List of Obect Identifiers]) ->
-%% {[Encoded Octetlist of ObjIds], IntLength}
-%%
-e_object_identifier([E1, E2 | Tail]) ->
- Head = 40*E1 + E2, % wow!
- {H,Lh} = mk_object_val(Head),
- {R,Lr} = lists:mapfoldl(fun enc_obj_id_tail/2,0,Tail),
- {[H|R], Lh+Lr}.
-
-enc_obj_id_tail(H, Len) ->
- {B, L} = mk_object_val(H),
- {B,Len+L}.
-
-
-%%%%%%%%%%%
-%% mk_object_val(Value) -> {OctetList, Len}
-%% returns a Val as a list of octets, the 8 bit is allways set to one except
-%% for the last octet, where its 0
-%%
-
-
-mk_object_val(Val) when Val =< 127 ->
- {[255 band Val], 1};
-mk_object_val(Val) ->
- mk_object_val(Val bsr 7, [Val band 127], 1).
-mk_object_val(0, Ack, Len) ->
- {Ack, Len};
-mk_object_val(Val, Ack, Len) ->
- mk_object_val(Val bsr 7, [((Val band 127) bor 128) | Ack], Len + 1).
-
-
-
-%%============================================================================
-%% decode Object Identifier value
-%% (Buffer, HasTag, TotalLen) -> {{ObjId}, Remain, RemovedBytes}
-%%============================================================================
-
-decode_object_identifier(Tlv, Tags) ->
- Val = match_tags(Tlv, Tags),
- [AddedObjVal|ObjVals] = dec_subidentifiers(Val,0,[]),
- {Val1, Val2} = if
- AddedObjVal < 40 ->
- {0, AddedObjVal};
- AddedObjVal < 80 ->
- {1, AddedObjVal - 40};
- true ->
- {2, AddedObjVal - 80}
- end,
- list_to_tuple([Val1, Val2 | ObjVals]).
-
-dec_subidentifiers(<<>>,_Av,Al) ->
- lists:reverse(Al);
-dec_subidentifiers(<<1:1,H:7,T/binary>>,Av,Al) ->
- dec_subidentifiers(T,(Av bsl 7) + H,Al);
-dec_subidentifiers(<<H,T/binary>>,Av,Al) ->
- dec_subidentifiers(T,0,[((Av bsl 7) + H)|Al]).
-
-%%============================================================================
-%% RELATIVE-OID, ITU_T X.690 Chapter 8.20
-%%
-%% encode Relative Object Identifier
-%%============================================================================
-encode_relative_oid({Name,Val},TagIn) when is_atom(Name) ->
- encode_relative_oid(Val,TagIn);
-encode_relative_oid(Val,TagIn) when is_tuple(Val) ->
- encode_relative_oid(tuple_to_list(Val),TagIn);
-encode_relative_oid(Val,TagIn) ->
- encode_tags(TagIn, enc_relative_oid(Val)).
-
-enc_relative_oid(Tuple) when is_tuple(Tuple) ->
- enc_relative_oid(tuple_to_list(Tuple));
-enc_relative_oid(Val) ->
- lists:mapfoldl(fun(X,AccIn) ->
- {SO,L}=mk_object_val(X),
- {SO,L+AccIn}
- end
- ,0,Val).
-
-%%============================================================================
-%% decode Relative Object Identifier value
-%% (Buffer, HasTag, TotalLen) -> {{ObjId}, Remain, RemovedBytes}
-%%============================================================================
-decode_relative_oid(Tlv, Tags) ->
- Val = match_tags(Tlv, Tags),
- ObjVals = dec_subidentifiers(Val,0,[]),
- list_to_tuple(ObjVals).
-
-%%============================================================================
-%% Restricted character string types, ITU_T X.690 Chapter 8.20
-%%
-%% encode Numeric Printable Teletex Videotex Visible IA5 Graphic General strings
-%%============================================================================
-%% The StringType arg is kept for future use but might be removed
-encode_restricted_string(_C, OctetList, _StringType, TagIn)
- when is_binary(OctetList) ->
- encode_tags(TagIn, OctetList, size(OctetList));
-encode_restricted_string(_C, OctetList, _StringType, TagIn)
- when is_list(OctetList) ->
- encode_tags(TagIn, OctetList, length(OctetList));
-encode_restricted_string(C,{Name,OctetL}, StringType, TagIn) when is_atom(Name)->
- encode_restricted_string(C, OctetL, StringType, TagIn).
-
-%%============================================================================
-%% decode Numeric Printable Teletex Videotex Visible IA5 Graphic General strings
-%% (Buffer, Range, StringType, HasTag, TotalLen) ->
-%% {String, Remain, RemovedBytes}
-%%============================================================================
-
-decode_restricted_string(Buffer, Range, StringType, Tags) ->
- decode_restricted_string(Buffer, Range, StringType, Tags, [], old).
-
-
-decode_restricted_string(Tlv, Range, StringType, TagsIn,
- NamedNumberList, BinOrOld) ->
- Val = match_tags(Tlv, TagsIn),
- Val2 =
- case Val of
- PartList = [_H|_T] -> % constructed val
- Bin = collect_parts(PartList),
- decode_restricted(Bin, StringType,
- NamedNumberList, BinOrOld);
- Bin ->
- decode_restricted(Bin, StringType,
- NamedNumberList, BinOrOld)
- end,
- check_and_convert_restricted_string(Val2,StringType,Range,NamedNumberList,BinOrOld).
-
-
-
-% case StringType of
-% ?N_BIT_STRING when BinOrOld == bin ->
-% {concat_bit_binaries(AccVal, Val), AccRb+Rb};
-% _ when is_binary(Val),is_binary(AccVal) ->
-% {<<AccVal/binary,Val/binary>>,AccRb+Rb};
-% _ when is_binary(Val), AccVal==[] ->
-% {Val,AccRb+Rb};
-% _ ->
-% {AccVal++Val, AccRb+Rb}
-% end,
-
-
-
-decode_restricted(Bin, StringType, NamedNumberList,BinOrOld) ->
- case StringType of
- ?N_BIT_STRING ->
- decode_bit_string2(Bin, NamedNumberList, BinOrOld);
- ?N_UniversalString ->
- mk_universal_string(binary_to_list(Bin));
- ?N_BMPString ->
- mk_BMP_string(binary_to_list(Bin));
- _ ->
- Bin
- end.
-
-
-check_and_convert_restricted_string(Val,StringType,Range,NamedNumberList,_BinOrOld) ->
- {StrLen,NewVal} = case StringType of
- ?N_BIT_STRING when NamedNumberList /= [] ->
- {no_check,Val};
- ?N_BIT_STRING when is_list(Val) ->
- {length(Val),Val};
- ?N_BIT_STRING when is_tuple(Val) ->
- {(size(element(2,Val))*8) - element(1,Val),Val};
- _ when is_binary(Val) ->
- {size(Val),binary_to_list(Val)};
- _ when is_list(Val) ->
- {length(Val), Val}
- end,
- case Range of
- _ when StrLen == no_check ->
- NewVal;
- [] -> % No length constraint
- NewVal;
- {Lb,Ub} when StrLen >= Lb, Ub >= StrLen -> % variable length constraint
- NewVal;
- {{Lb,_Ub},[]} when StrLen >= Lb ->
- NewVal;
- {{Lb,_Ub},_Ext=[Min|_]} when StrLen >= Lb; StrLen >= Min ->
- NewVal;
- {{Lb1,Ub1},{Lb2,Ub2}} when StrLen >= Lb1, StrLen =< Ub1;
- StrLen =< Ub2, StrLen >= Lb2 ->
- NewVal;
- StrLen -> % fixed length constraint
- NewVal;
- {_,_} ->
- exit({error,{asn1,{length,Range,Val}}});
- _Len when is_integer(_Len) ->
- exit({error,{asn1,{length,Range,Val}}});
- _ -> % some strange constraint that we don't support yet
- NewVal
- end.
-
-
-%%============================================================================
-%% encode Universal string
-%%============================================================================
-
-encode_universal_string(C, {Name, Universal}, TagIn) when is_atom(Name) ->
- encode_universal_string(C, Universal, TagIn);
-encode_universal_string(_C, Universal, TagIn) ->
- OctetList = mk_uni_list(Universal),
- encode_tags(TagIn, OctetList, length(OctetList)).
-
-mk_uni_list(In) ->
- mk_uni_list(In,[]).
-
-mk_uni_list([],List) ->
- lists:reverse(List);
-mk_uni_list([{A,B,C,D}|T],List) ->
- mk_uni_list(T,[D,C,B,A|List]);
-mk_uni_list([H|T],List) ->
- mk_uni_list(T,[H,0,0,0|List]).
-
-%%===========================================================================
-%% decode Universal strings
-%% (Buffer, Range, StringType, HasTag, LenIn) ->
-%% {String, Remain, RemovedBytes}
-%%===========================================================================
-
-decode_universal_string(Buffer, Range, Tags) ->
- decode_restricted_string(Buffer, Range, ?N_UniversalString,
- Tags, [], old).
-
-
-mk_universal_string(In) ->
- mk_universal_string(In,[]).
-
-mk_universal_string([],Acc) ->
- lists:reverse(Acc);
-mk_universal_string([0,0,0,D|T],Acc) ->
- mk_universal_string(T,[D|Acc]);
-mk_universal_string([A,B,C,D|T],Acc) ->
- mk_universal_string(T,[{A,B,C,D}|Acc]).
-
-
-%%============================================================================
-%% encode UTF8 string
-%%============================================================================
-
-encode_UTF8_string(_C,UTF8String,TagIn) when is_binary(UTF8String) ->
- encode_tags(TagIn, UTF8String, size(UTF8String));
-encode_UTF8_string(_C,UTF8String,TagIn) ->
- encode_tags(TagIn, UTF8String, length(UTF8String)).
-
-
-%%============================================================================
-%% decode UTF8 string
-%%============================================================================
-
-decode_UTF8_string(Tlv,TagsIn) ->
- Val = match_tags(Tlv, TagsIn),
- case Val of
- PartList = [_H|_T] -> % constructed val
- collect_parts(PartList);
- Bin ->
- Bin
- end.
-
-
-%%============================================================================
-%% encode BMP string
-%%============================================================================
-
-encode_BMP_string(C, {Name,BMPString}, TagIn) when is_atom(Name)->
- encode_BMP_string(C, BMPString, TagIn);
-encode_BMP_string(_C, BMPString, TagIn) ->
- OctetList = mk_BMP_list(BMPString),
- encode_tags(TagIn, OctetList, length(OctetList)).
-
-mk_BMP_list(In) ->
- mk_BMP_list(In,[]).
-
-mk_BMP_list([],List) ->
- lists:reverse(List);
-mk_BMP_list([{0,0,C,D}|T],List) ->
- mk_BMP_list(T,[D,C|List]);
-mk_BMP_list([H|T],List) ->
- mk_BMP_list(T,[H,0|List]).
-
-%%============================================================================
-%% decode (OctetList, Range(ignored), tag|notag) -> {ValList, RestList}
-%% (Buffer, Range, StringType, HasTag, TotalLen) ->
-%% {String, Remain, RemovedBytes}
-%%============================================================================
-decode_BMP_string(Buffer, Range, Tags) ->
- decode_restricted_string(Buffer, Range, ?N_BMPString,
- Tags, [], old).
-
-mk_BMP_string(In) ->
- mk_BMP_string(In,[]).
-
-mk_BMP_string([],US) ->
- lists:reverse(US);
-mk_BMP_string([0,B|T],US) ->
- mk_BMP_string(T,[B|US]);
-mk_BMP_string([C,D|T],US) ->
- mk_BMP_string(T,[{0,0,C,D}|US]).
-
-
-%%============================================================================
-%% Generalized time, ITU_T X.680 Chapter 39
-%%
-%% encode Generalized time
-%%============================================================================
-
-encode_generalized_time(C, {Name,OctetList}, TagIn) when is_atom(Name) ->
- encode_generalized_time(C, OctetList, TagIn);
-encode_generalized_time(_C, OctetList, TagIn) ->
- encode_tags(TagIn, OctetList, length(OctetList)).
-
-%%============================================================================
-%% decode Generalized time
-%% (Buffer, Range, HasTag, TotalLen) -> {String, Remain, RemovedBytes}
-%%============================================================================
-
-decode_generalized_time(Tlv, _Range, Tags) ->
- Val = match_tags(Tlv, Tags),
- NewVal = case Val of
- PartList = [_H|_T] -> % constructed
- collect_parts(PartList);
- Bin ->
- Bin
- end,
- binary_to_list(NewVal).
-
-%%============================================================================
-%% Universal time, ITU_T X.680 Chapter 40
-%%
-%% encode UTC time
-%%============================================================================
-
-encode_utc_time(C, {Name,OctetList}, TagIn) when is_atom(Name) ->
- encode_utc_time(C, OctetList, TagIn);
-encode_utc_time(_C, OctetList, TagIn) ->
- encode_tags(TagIn, OctetList, length(OctetList)).
-
-%%============================================================================
-%% decode UTC time
-%% (Buffer, Range, HasTag, TotalLen) -> {String, Remain, RemovedBytes}
-%%============================================================================
-
-decode_utc_time(Tlv, _Range, Tags) ->
- Val = match_tags(Tlv, Tags),
- NewVal = case Val of
- PartList = [_H|_T] -> % constructed
- collect_parts(PartList);
- Bin ->
- Bin
- end,
- binary_to_list(NewVal).
-
-
-%%============================================================================
-%% Length handling
-%%
-%% Encode length
-%%
-%% encode_length(Int | indefinite) ->
-%% [<127]| [128 + Int (<127),OctetList] | [16#80]
-%%============================================================================
-
-encode_length(indefinite) ->
- {[16#80],1}; % 128
-encode_length(L) when L =< 16#7F ->
- {[L],1};
-encode_length(L) ->
- Oct = minimum_octets(L),
- Len = length(Oct),
- if
- Len =< 126 ->
- {[ (16#80+Len) | Oct ],Len+1};
- true ->
- exit({error,{asn1, to_long_length_oct, Len}})
- end.
-
-
-%% Val must be >= 0
-minimum_octets(Val) ->
- minimum_octets(Val,[]).
-
-minimum_octets(0,Acc) ->
- Acc;
-minimum_octets(Val, Acc) ->
- minimum_octets((Val bsr 8),[Val band 16#FF | Acc]).
-
-
-%%===========================================================================
-%% Decode length
-%%
-%% decode_length(OctetList) -> {{indefinite, RestOctetsL}, NoRemovedBytes} |
-%% {{Length, RestOctetsL}, NoRemovedBytes}
-%%===========================================================================
-
-decode_length(<<1:1,0:7,T/binary>>) ->
- {indefinite, T};
-decode_length(<<0:1,Length:7,T/binary>>) ->
- {Length,T};
-decode_length(<<1:1,LL:7,T/binary>>) ->
- <<Length:LL/unit:8,Rest/binary>> = T,
- {Length,Rest}.
-
-
-
-%%-------------------------------------------------------------------------
-%% INTERNAL HELPER FUNCTIONS (not exported)
-%%-------------------------------------------------------------------------
-
-
-%% decoding postitive integer values.
-decode_integer2(Len,Bin = <<0:1,_:7,_Bs/binary>>) ->
- <<Int:Len/unit:8>> = Bin,
- Int;
-%% decoding negative integer values.
-decode_integer2(Len,<<1:1,B2:7,Bs/binary>>) ->
- <<N:Len/unit:8>> = <<B2,Bs/binary>>,
- Int = N - (1 bsl (8 * Len - 1)),
- Int.
-
-get_constraint(C,Key) ->
- case lists:keysearch(Key,1,C) of
- false ->
- no;
- {value,{_,V}} ->
- V
- end.
-
-collect_parts(TlvList) ->
- collect_parts(TlvList,[]).
-
-collect_parts([{_,L}|Rest],Acc) when is_list(L) ->
- collect_parts(Rest,[collect_parts(L)|Acc]);
-collect_parts([{?N_BIT_STRING,<<Unused,Bits/binary>>}|Rest],_Acc) ->
- collect_parts_bit(Rest,[Bits],Unused);
-collect_parts([{_T,V}|Rest],Acc) ->
- collect_parts(Rest,[V|Acc]);
-collect_parts([],Acc) ->
- list_to_binary(lists:reverse(Acc)).
-
-collect_parts_bit([{?N_BIT_STRING,<<Unused,Bits/binary>>}|Rest],Acc,Uacc) ->
- collect_parts_bit(Rest,[Bits|Acc],Unused+Uacc);
-collect_parts_bit([],Acc,Uacc) ->
- list_to_binary([Uacc|lists:reverse(Acc)]).
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/lib/asn1/src/asn1rt_check.erl b/lib/asn1/src/asn1rt_check.erl
deleted file mode 100644
index 35b993fc71..0000000000
--- a/lib/asn1/src/asn1rt_check.erl
+++ /dev/null
@@ -1,360 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2001-2011. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
-%%
--module(asn1rt_check).
-
--export([check_bool/2,
- check_int/3,
- check_bitstring/3,
- check_octetstring/2,
- check_null/2,
- check_objectidentifier/2,
- check_objectdescriptor/2,
- check_real/2,
- check_enum/3,
- check_restrictedstring/2]).
-
--export([transform_to_EXTERNAL1990/1,
- transform_to_EXTERNAL1994/1]).
-
--export([dynamicsort_SET_components/1,
- dynamicsort_SETOF/1]).
-
-check_bool(_Bool,asn1_DEFAULT) ->
- true;
-check_bool(Bool,Bool) when Bool == true; Bool == false ->
- true;
-check_bool(_Bool1,Bool2) ->
- throw({error,Bool2}).
-
-check_int(_,asn1_DEFAULT,_) ->
- true;
-check_int(Value,Value,_) when is_integer(Value) ->
- true;
-check_int(DefValue,Value,NNL) when is_atom(Value) ->
- case lists:keysearch(Value,1,NNL) of
- {value,{_,DefValue}} ->
- true;
- _ ->
- throw({error,DefValue})
- end;
-check_int(DefaultValue,_Value,_) ->
- throw({error,DefaultValue}).
-
-% check_bitstring([H|T],[H|T],_) when is_integer(H) ->
-% true;
-% check_bitstring(V,V,_) when is_integer(V) ->
-% true;
-%% Two equal lists or integers
-check_bitstring(_,asn1_DEFAULT,_) ->
- true;
-check_bitstring(V,V,_) ->
- true;
-%% Default value as a list of 1 and 0 and user value as an integer
-check_bitstring(L=[H|T],Int,_) when is_integer(Int),is_integer(H) ->
- case bit_list_to_int(L,length(T)) of
- Int -> true;
- _ -> throw({error,L,Int})
- end;
-%% Default value as an integer, val as list
-check_bitstring(Int,Val,NBL) when is_integer(Int),is_list(Val) ->
- BL = int_to_bit_list(Int,[],length(Val)),
- check_bitstring(BL,Val,NBL);
-%% Default value and user value as lists of ones and zeros
-check_bitstring(L1=[H1|_T1],L2=[H2|_T2],NBL=[_H|_T]) when is_integer(H1),is_integer(H2) ->
- L2new = remove_trailing_zeros(L2),
- check_bitstring(L1,L2new,NBL);
-%% Default value as a list of 1 and 0 and user value as a list of atoms
-check_bitstring(L1=[H1|_T1],L2=[H2|_T2],NBL) when is_integer(H1),is_atom(H2) ->
- L3 = bit_list_to_nbl(L1,NBL,0,[]),
- check_bitstring(L3,L2,NBL);
-%% Both default value and user value as a list of atoms
-check_bitstring(L1=[H1|T1],L2=[H2|_T2],_)
- when is_atom(H1),is_atom(H2),length(L1) == length(L2) ->
- case lists:member(H1,L2) of
- true ->
- check_bitstring1(T1,L2);
- false -> throw({error,L2})
- end;
-%% Default value as a list of atoms and user value as a list of 1 and 0
-check_bitstring(L1=[H1|_T1],L2=[H2|_T2],NBL) when is_atom(H1),is_integer(H2) ->
- L3 = bit_list_to_nbl(L2,NBL,0,[]),
- check_bitstring(L1,L3,NBL);
-%% User value in compact format
-check_bitstring(DefVal,CBS={_,_},NBL) ->
- NewVal = cbs_to_bit_list(CBS),
- check_bitstring(DefVal,NewVal,NBL);
-check_bitstring(DV,V,_) ->
- throw({error,DV,V}).
-
-
-bit_list_to_int([0|Bs],ShL)->
- bit_list_to_int(Bs,ShL-1) + 0;
-bit_list_to_int([1|Bs],ShL) ->
- bit_list_to_int(Bs,ShL-1) + (1 bsl ShL);
-bit_list_to_int([],_) ->
- 0.
-
-int_to_bit_list(0,Acc,0) ->
- Acc;
-int_to_bit_list(Int,Acc,Len) ->
- int_to_bit_list(Int bsr 1,[Int band 1|Acc],Len - 1).
-
-bit_list_to_nbl([0|T],NBL,Pos,Acc) ->
- bit_list_to_nbl(T,NBL,Pos+1,Acc);
-bit_list_to_nbl([1|T],NBL,Pos,Acc) ->
- case lists:keysearch(Pos,2,NBL) of
- {value,{N,_}} ->
- bit_list_to_nbl(T,NBL,Pos+1,[N|Acc]);
- _ ->
- throw({error,{no,named,element,at,pos,Pos}})
- end;
-bit_list_to_nbl([],_,_,Acc) ->
- Acc.
-
-remove_trailing_zeros(L2) ->
- remove_trailing_zeros1(lists:reverse(L2)).
-remove_trailing_zeros1(L) ->
- lists:reverse(lists:dropwhile(fun(0)->true;
- (_) ->false
- end,
- L)).
-
-check_bitstring1([H|T],NBL) ->
- case lists:member(H,NBL) of
- true ->
- check_bitstring1(T,NBL);
- V -> throw({error,V})
- end;
-check_bitstring1([],_) ->
- true.
-
-cbs_to_bit_list({Unused,<<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1,Rest/binary>>}) when size(Rest) >= 1 ->
- [B7,B6,B5,B4,B3,B2,B1,B0|cbs_to_bit_list({Unused,Rest})];
-cbs_to_bit_list({0,<<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1>>}) ->
- [B7,B6,B5,B4,B3,B2,B1,B0];
-cbs_to_bit_list({Unused,Bin}) when size(Bin) == 1 ->
- Used = 8-Unused,
- <<Int:Used,_:Unused>> = Bin,
- int_to_bit_list(Int,[],Used).
-
-
-check_octetstring(_,asn1_DEFAULT) ->
- true;
-check_octetstring(L,L) ->
- true;
-check_octetstring(L,Int) when is_list(L),is_integer(Int) ->
- case integer_to_octetlist(Int) of
- L -> true;
- V -> throw({error,V})
- end;
-check_octetstring(_,V) ->
- throw({error,V}).
-
-integer_to_octetlist(Int) ->
- integer_to_octetlist(Int,[]).
-integer_to_octetlist(0,Acc) ->
- Acc;
-integer_to_octetlist(Int,Acc) ->
- integer_to_octetlist(Int bsr 8,[(Int band 255)|Acc]).
-
-check_null(_,asn1_DEFAULT) ->
- true;
-check_null('NULL','NULL') ->
- true;
-check_null(_,V) ->
- throw({error,V}).
-
-check_objectidentifier(_,asn1_DEFAULT) ->
- true;
-check_objectidentifier(OI,OI) ->
- true;
-check_objectidentifier(DOI,OI) when is_tuple(DOI),is_tuple(OI) ->
- check_objectidentifier1(tuple_to_list(DOI),tuple_to_list(OI));
-check_objectidentifier(_,OI) ->
- throw({error,OI}).
-
-check_objectidentifier1([V|Rest1],[V|Rest2]) ->
- check_objectidentifier1(Rest1,Rest2,V);
-check_objectidentifier1([V1|Rest1],[V2|Rest2]) ->
- case reserved_objectid(V2,[]) of
- V1 ->
- check_objectidentifier1(Rest1,Rest2,[V1]);
- V ->
- throw({error,V})
- end.
-check_objectidentifier1([V|Rest1],[V|Rest2],Above) ->
- check_objectidentifier1(Rest1,Rest2,[V|Above]);
-check_objectidentifier1([V1|Rest1],[V2|Rest2],Above) ->
- case reserved_objectid(V2,Above) of
- V1 ->
- check_objectidentifier1(Rest1,Rest2,[V1|Above]);
- V ->
- throw({error,V})
- end;
-check_objectidentifier1([],[],_) ->
- true;
-check_objectidentifier1(_,V,_) ->
- throw({error,object,identifier,V}).
-
-%% ITU-T Rec. X.680 Annex B - D
-reserved_objectid('itu-t',[]) -> 0;
-reserved_objectid('ccitt',[]) -> 0;
-%% arcs below "itu-t"
-reserved_objectid('recommendation',[0]) -> 0;
-reserved_objectid('question',[0]) -> 1;
-reserved_objectid('administration',[0]) -> 2;
-reserved_objectid('network-operator',[0]) -> 3;
-reserved_objectid('identified-organization',[0]) -> 4;
-
-reserved_objectid(iso,[]) -> 1;
-%% arcs below "iso", note that number 1 is not used
-reserved_objectid('standard',[1]) -> 0;
-reserved_objectid('member-body',[1]) -> 2;
-reserved_objectid('identified-organization',[1]) -> 3;
-
-reserved_objectid('joint-iso-itu-t',[]) -> 2;
-reserved_objectid('joint-iso-ccitt',[]) -> 2;
-
-reserved_objectid(_,_) -> false.
-
-
-check_objectdescriptor(_,asn1_DEFAULT) ->
- true;
-check_objectdescriptor(OD,OD) ->
- true;
-check_objectdescriptor(OD,OD) ->
- throw({error,{not_implemented_yet,check_objectdescriptor}}).
-
-check_real(_,asn1_DEFAULT) ->
- true;
-check_real(R,R) ->
- true;
-check_real(_,_) ->
- throw({error,{not_implemented_yet,check_real}}).
-
-check_enum(_,asn1_DEFAULT,_) ->
- true;
-check_enum(Val,Val,_) ->
- true;
-check_enum(Int,Atom,Enumerations) when is_integer(Int),is_atom(Atom) ->
- case lists:keysearch(Atom,1,Enumerations) of
- {value,{_,Int}} -> true;
- _ -> throw({error,{enumerated,Int,Atom}})
- end;
-check_enum(DefVal,Val,_) ->
- throw({error,{enumerated,DefVal,Val}}).
-
-
-check_restrictedstring(_,asn1_DEFAULT) ->
- true;
-check_restrictedstring(Val,Val) ->
- true;
-check_restrictedstring([V|Rest1],[V|Rest2]) ->
- check_restrictedstring(Rest1,Rest2);
-check_restrictedstring([V1|Rest1],[V2|Rest2]) ->
- check_restrictedstring(V1,V2),
- check_restrictedstring(Rest1,Rest2);
-%% tuple format of value
-check_restrictedstring({V1,V2},[V1,V2]) ->
- true;
-check_restrictedstring([V1,V2],{V1,V2}) ->
- true;
-%% quadruple format of value
-check_restrictedstring({V1,V2,V3,V4},[V1,V2,V3,V4]) ->
- true;
-check_restrictedstring([V1,V2,V3,V4],{V1,V2,V3,V4}) ->
- true;
-%% character string list
-check_restrictedstring(V1,V2) when is_list(V1),is_tuple(V2) ->
- check_restrictedstring(V1,tuple_to_list(V2));
-check_restrictedstring(V1,V2) ->
- throw({error,{restricted,string,V1,V2}}).
-
-transform_to_EXTERNAL1990(Val) when is_tuple(Val),size(Val) == 4 ->
- transform_to_EXTERNAL1990(tuple_to_list(Val),[]);
-transform_to_EXTERNAL1990(Val) when is_tuple(Val) ->
- %% Data already in ASN1 1990 format
- Val.
-
-transform_to_EXTERNAL1990(['EXTERNAL'|Rest],Acc) ->
- transform_to_EXTERNAL1990(Rest,['EXTERNAL'|Acc]);
-transform_to_EXTERNAL1990([{syntax,Syntax}|Rest],Acc) ->
- transform_to_EXTERNAL1990(Rest,[asn1_NOVALUE,Syntax|Acc]);
-transform_to_EXTERNAL1990([{'presentation-context-id',PCid}|Rest],Acc) ->
- transform_to_EXTERNAL1990(Rest,[PCid,asn1_NOVALUE|Acc]);
-transform_to_EXTERNAL1990([{'context-negotiation',Context_negot}|Rest],Acc) ->
- {_,Presentation_Cid,Transfer_syntax} = Context_negot,
- transform_to_EXTERNAL1990(Rest,[Presentation_Cid,Transfer_syntax|Acc]);
-transform_to_EXTERNAL1990([asn1_NOVALUE|Rest],Acc) ->
- transform_to_EXTERNAL1990(Rest,[asn1_NOVALUE|Acc]);
-transform_to_EXTERNAL1990([Data_val_desc,Data_value],Acc) when is_list(Data_value)->
- list_to_tuple(lists:reverse([{'octet-aligned',Data_value},
- Data_val_desc|Acc]));
-transform_to_EXTERNAL1990([Data_val_desc,Data_value],Acc)
- when is_binary(Data_value)->
- list_to_tuple(lists:reverse([{'single-ASN1-type',Data_value},
- Data_val_desc|Acc]));
-transform_to_EXTERNAL1990([Data_value],Acc)
- when is_list(Data_value); is_binary(Data_value) ->
- list_to_tuple(lists:reverse([{'octet-aligned',Data_value}|Acc])).
-
-
-transform_to_EXTERNAL1994(V={'EXTERNAL',DRef,IndRef,Data_v_desc,Encoding}) ->
- Identification =
- case {DRef,IndRef} of
- {DRef,asn1_NOVALUE} ->
- {syntax,DRef};
- {asn1_NOVALUE,IndRef} ->
- {'presentation-context-id',IndRef};
- _ ->
- {'context-negotiation',
- {'EXTERNAL_identification_context-negotiation',IndRef,DRef}}
- end,
- case Encoding of
- {_,Val} when is_list(Val);is_binary(Val) ->
- {'EXTERNAL',Identification,Data_v_desc,Val};
-
- _ ->
- V
- end.
-
-
-%% dynamicsort_SET_components(Arg) ->
-%% Res Arg -> list()
-%% Res -> list()
-%% Sorts the elements in Arg according to the encoded tag in
-%% increasing order.
-dynamicsort_SET_components(ListOfEncCs) ->
- BinL = lists:map(fun(X) -> list_to_binary(X) end,ListOfEncCs),
- TagBinL = lists:map(fun(X) ->
- {{T,_,TN},_,_} = asn1rt_ber_bin:decode_tag(X),
- {{T,TN},X}
- end,BinL),
- ClassTagNoSorted = lists:keysort(1,TagBinL),
- lists:map(fun({_,El}) -> El end,ClassTagNoSorted).
-
-%% dynamicsort_SETOF(Arg) -> Res
-%% Arg -> list()
-%% Res -> list()
-%% Sorts the elements in Arg in increasing size
-dynamicsort_SETOF(ListOfEncVal) ->
- BinL = lists:map(fun(L) when is_list(L) -> list_to_binary(L);
- (B) -> B end,ListOfEncVal),
- lists:sort(BinL).
diff --git a/lib/asn1/src/asn1rt_nif.erl b/lib/asn1/src/asn1rt_nif.erl
index de1fb94816..0b2e5a62a5 100644
--- a/lib/asn1/src/asn1rt_nif.erl
+++ b/lib/asn1/src/asn1rt_nif.erl
@@ -77,10 +77,31 @@ load_nif() ->
Status
end.
-encode_per_complete(_TagValueList) ->
+decode_ber_tlv(Binary) ->
+ case decode_ber_tlv_raw(Binary) of
+ {error,Reason} ->
+ exit({error,{asn1,Reason}});
+ Other ->
+ Other
+ end.
+
+encode_per_complete(TagValueList) ->
+ case encode_per_complete_raw(TagValueList) of
+ {error,Reason} -> handle_error(Reason, TagValueList);
+ Other when is_binary(Other) -> Other
+ end.
+
+handle_error([], _)->
+ exit({error,{asn1,enomem}});
+handle_error($1, L) -> % error in complete in driver
+ exit({error,{asn1,L}});
+handle_error(ErrL, L) ->
+ exit({error,{asn1,ErrL,L}}).
+
+encode_per_complete_raw(_TagValueList) ->
erlang:nif_error({nif_not_loaded,module,?MODULE,line,?LINE}).
-decode_ber_tlv(_Binary) ->
+decode_ber_tlv_raw(_Binary) ->
erlang:nif_error({nif_not_loaded,module,?MODULE,line,?LINE}).
encode_ber_tlv(_TagValueList) ->
diff --git a/lib/asn1/src/asn1rt_per_bin_rt2ct.erl b/lib/asn1/src/asn1rt_per_bin_rt2ct.erl
deleted file mode 100644
index 5997232f13..0000000000
--- a/lib/asn1/src/asn1rt_per_bin_rt2ct.erl
+++ /dev/null
@@ -1,1587 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2002-2012. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
-%%
--module(asn1rt_per_bin_rt2ct).
-%% encoding / decoding of PER aligned
-
--include("asn1_records.hrl").
-
--export([decode_fragmented/3]).
--export([setchoiceext/1, setext/1, fixoptionals/3, fixextensions/2,
- skipextensions/3, getbit/1, getchoice/3 ]).
--export([set_choice/3, encode_integer/2, encode_integer/3 ]).
--export([encode_small_number/1,
- encode_length/2,
- encode_small_length/1,
- decode_compact_bit_string/3]).
--export([encode_bit_string/3, decode_bit_string/3 ]).
--export([encode_octet_string/2,
- encode_object_identifier/1, decode_object_identifier/1,
- encode_real/1, decode_real/1,
- encode_relative_oid/1, decode_relative_oid/1,
- complete/1]).
-
--export([encode_open_type/2, decode_open_type/2]).
-
--export([encode_GeneralString/2, decode_GeneralString/2,
- encode_GraphicString/2, decode_GraphicString/2,
- encode_TeletexString/2, decode_TeletexString/2,
- encode_VideotexString/2, decode_VideotexString/2,
- encode_ObjectDescriptor/2, decode_ObjectDescriptor/1,
- encode_UTF8String/1,decode_UTF8String/1
- ]).
-
--export([encode_unconstrained_number/1,
- encode_octet_string/3,
- encode_known_multiplier_string/5,
- decode_known_multiplier_string/5]).
-
-
--export([eint_positive/1]).
--export([pre_complete_bits/2]).
-
--define('16K',16384).
--define('32K',32768).
--define('64K',65536).
-
-%%--------------------------------------------------------
-%% setchoiceext(InRootSet) -> [{bit,X}]
-%% X is set to 1 when InRootSet==false
-%% X is set to 0 when InRootSet==true
-%%
-setchoiceext(true) ->
- [0];
-setchoiceext(false) ->
- [1].
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% setext(true|false) -> CompleteList
-%%
-
-setext(false) ->
-% [{debug,ext},{bits,1,0}];
- [0];
-setext(true) ->
-% [{debug,ext},{bits,1,1}];
- [1].
-
-fixoptionals(OptList,_OptLength,Val) when is_tuple(Val) ->
-% Bits = fixoptionals(OptList,Val,0),
-% {Val,{bits,OptLength,Bits}};
-% {Val,[10,OptLength,Bits]};
- {Val,fixoptionals(OptList,Val,[])};
-
-fixoptionals([],_,Acc) ->
- %% Optbits
- lists:reverse(Acc);
-fixoptionals([{Pos,DefVal}|Ot],Val,Acc) ->
- case element(Pos,Val) of
- asn1_DEFAULT -> fixoptionals(Ot,Val,[0|Acc]);
- DefVal -> fixoptionals(Ot,Val,[0|Acc]);
- _ -> fixoptionals(Ot,Val,[1|Acc])
- end;
-fixoptionals([Pos|Ot],Val,Acc) ->
- case element(Pos,Val) of
- asn1_NOVALUE -> fixoptionals(Ot,Val,[0|Acc]);
- asn1_DEFAULT -> fixoptionals(Ot,Val,[0|Acc]);
- _ -> fixoptionals(Ot,Val,[1|Acc])
- end.
-
-
-fixextensions({ext,ExtPos,ExtNum},Val) ->
- case fixextensions(ExtPos,ExtNum+ExtPos,Val,0) of
- 0 -> [];
- ExtBits ->
- [encode_small_length(ExtNum),pre_complete_bits(ExtNum,ExtBits)]
- end.
-
-fixextensions(Pos,MaxPos,_,Acc) when Pos >= MaxPos ->
- Acc;
-fixextensions(Pos,ExtPos,Val,Acc) ->
- Bit = case catch(element(Pos+1,Val)) of
- asn1_NOVALUE ->
- 0;
- asn1_NOEXTVALUE ->
- 0;
- {'EXIT',_} ->
- 0;
- _ ->
- 1
- end,
- fixextensions(Pos+1,ExtPos,Val,(Acc bsl 1)+Bit).
-
-skipextensions(Bytes,Nr,ExtensionBitstr) when is_bitstring(ExtensionBitstr) ->
- Prev = Nr - 1,
- case ExtensionBitstr of
- <<_:Prev,1:1,_/bitstring>> ->
- {_,Bytes2} = decode_open_type(Bytes,[]),
- skipextensions(Bytes2, Nr+1, ExtensionBitstr);
- <<_:Prev,0:1,_/bitstring>> ->
- skipextensions(Bytes, Nr+1, ExtensionBitstr);
- _ ->
- Bytes
- end.
-
-
-getchoice(Bytes,1,0) -> % only 1 alternative is not encoded
- {0,Bytes};
-getchoice(Bytes,_,1) ->
- decode_small_number(Bytes);
-getchoice(Bytes,NumChoices,0) ->
- decode_constrained_number(Bytes,{0,NumChoices-1}).
-
-
-%% getbits_as_binary(Num,Bytes) -> {Bin,Rest}
-%% Num = integer(),
-%% Bytes = bitstring(),
-%% Bin = bitstring(),
-%% Rest = bitstring()
-getbits_as_binary(Num,Bytes) when is_bitstring(Bytes) ->
- <<BS:Num/bitstring,Rest/bitstring>> = Bytes,
- {BS,Rest}.
-
-getbits_as_list(Num,Bytes) when is_bitstring(Bytes) ->
- <<BitStr:Num/bitstring,Rest/bitstring>> = Bytes,
- {[ B || <<B:1>> <= BitStr],Rest}.
-
-
-getbit(Buffer) ->
- <<B:1,Rest/bitstring>> = Buffer,
- {B,Rest}.
-
-
-getbits(Buffer,Num) when is_bitstring(Buffer) ->
- <<Bs:Num,Rest/bitstring>> = Buffer,
- {Bs,Rest}.
-
-align(Bin) when is_binary(Bin) ->
- Bin;
-align(BitStr) when is_bitstring(BitStr) ->
- AlignBits = bit_size(BitStr) rem 8,
- <<_:AlignBits,Rest/binary>> = BitStr,
- Rest.
-
-
-%% First align buffer, then pick the first Num octets.
-%% Returns octets as an integer with bit significance as in buffer.
-getoctets(Buffer,Num) when is_binary(Buffer) ->
- <<Val:Num/integer-unit:8,RestBin/binary>> = Buffer,
- {Val,RestBin};
-getoctets(Buffer,Num) when is_bitstring(Buffer) ->
- AlignBits = bit_size(Buffer) rem 8,
- <<_:AlignBits,Val:Num/integer-unit:8,RestBin/binary>> = Buffer,
- {Val,RestBin}.
-
-
-%% First align buffer, then pick the first Num octets.
-%% Returns octets as a binary
-getoctets_as_bin(Bin,Num) when is_binary(Bin) ->
- <<Octets:Num/binary,RestBin/binary>> = Bin,
- {Octets,RestBin};
-getoctets_as_bin(Bin,Num) when is_bitstring(Bin) ->
- AlignBits = bit_size(Bin) rem 8,
- <<_:AlignBits,Val:Num/binary,RestBin/binary>> = Bin,
- {Val,RestBin}.
-
-
-%% same as above but returns octets as a List
-getoctets_as_list(Buffer,Num) ->
- {Bin,Buffer2} = getoctets_as_bin(Buffer,Num),
- {binary_to_list(Bin),Buffer2}.
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% set_choice(Alt,Choices,Altnum) -> ListofBitSettings
-%% Alt = atom()
-%% Altnum = integer() | {integer(),integer()}% number of alternatives
-%% Choices = [atom()] | {[atom()],[atom()]}
-%% When Choices is a tuple the first list is the Rootset and the
-%% second is the Extensions and then Altnum must also be a tuple with the
-%% lengths of the 2 lists
-%%
-set_choice(Alt,{L1,L2},{Len1,_Len2}) ->
- case set_choice_tag(Alt,L1) of
- N when is_integer(N), Len1 > 1 ->
-% [{bits,1,0}, % the value is in the root set
-% encode_constrained_number({0,Len1-1},N)];
- [0, % the value is in the root set
- encode_constrained_number({0,Len1-1},N)];
- N when is_integer(N) ->
-% [{bits,1,0}]; % no encoding if only 0 or 1 alternative
- [0]; % no encoding if only 0 or 1 alternative
- false ->
-% [{bits,1,1}, % extension value
- [1, % extension value
- case set_choice_tag(Alt,L2) of
- N2 when is_integer(N2) ->
- encode_small_number(N2);
- false ->
- unknown_choice_alt
- end]
- end;
-set_choice(Alt,L,Len) ->
- case set_choice_tag(Alt,L) of
- N when is_integer(N), Len > 1 ->
- encode_constrained_number({0,Len-1},N);
- N when is_integer(N) ->
- []; % no encoding if only 0 or 1 alternative
- false ->
- [unknown_choice_alt]
- end.
-
-set_choice_tag(Alt,Choices) ->
- set_choice_tag(Alt,Choices,0).
-
-set_choice_tag(Alt,[Alt|_Rest],Tag) ->
- Tag;
-set_choice_tag(Alt,[_H|Rest],Tag) ->
- set_choice_tag(Alt,Rest,Tag+1);
-set_choice_tag(_Alt,[],_Tag) ->
- false.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_fragmented_XXX; decode of values encoded fragmented according
-%% to ITU-T X.691 clause 10.9.3.8. The unit (XXX) is either bits, octets,
-%% characters or number of components (in a choice,sequence or similar).
-%% Buffer is a buffer binary().
-%% C is the constrained length.
-%% If the buffer is not aligned, this function does that.
-decode_fragmented_bits(Buffer,C) when is_binary(Buffer) ->
- decode_fragmented_bits(Buffer,C,[]);
-decode_fragmented_bits(Buffer,C) when is_bitstring(Buffer) ->
- AlignBits = bit_size(Buffer) rem 8,
- <<_:AlignBits,Rest/binary>> = Buffer,
- decode_fragmented_bits(Rest,C,[]).
-
-decode_fragmented_bits(<<3:2,Len:6,Bin/binary>>,C,Acc) ->
- {Value,Bin2} = split_binary(Bin, Len * ?'16K'), % Len = 1 | 2 | 3 | 4
- decode_fragmented_bits(Bin2,C,[Value|Acc]);
-decode_fragmented_bits(<<0:1,0:7,Bin/binary>>,C,Acc) ->
- BinBits = erlang:list_to_bitstring(lists:reverse(Acc)),
- case C of
- Int when is_integer(Int),C == bit_size(BinBits) ->
- {BinBits,Bin};
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,BinBits}}})
- end;
-decode_fragmented_bits(<<0:1,Len:7,Bin/binary>>,C,Acc) ->
- <<Value:Len/bitstring,Rest/bitstring>> = Bin,
- BinBits = erlang:list_to_bitstring([Value|Acc]),
- case C of
- Int when is_integer(Int),C == bit_size(BinBits) ->
- {BinBits,Rest};
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,BinBits}}})
- end.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_open_type(Constraint, Value) -> CompleteList
-%% Value = list of bytes of an already encoded value (the list must be flat)
-%% | binary
-%% Contraint = not used in this version
-%%
-encode_open_type(_Constraint, Val) when is_list(Val) ->
- Bin = list_to_binary(Val),
- case size(Bin) of
- Size when Size>255 ->
- [encode_length(undefined,Size),[21,<<Size:16>>,Bin]];
- Size ->
- [encode_length(undefined,Size),[20,Size,Bin]]
- end;
-encode_open_type(_Constraint, Val) when is_binary(Val) ->
- case size(Val) of
- Size when Size>255 ->
- [encode_length(undefined,size(Val)),[21,<<Size:16>>,Val]]; % octets implies align
- Size ->
- [encode_length(undefined,Size),[20,Size,Val]]
- end.
-%% the binary_to_list is not optimal but compatible with the current solution
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_open_type(Buffer,Constraint) -> Value
-%% Constraint is not used in this version
-%% Buffer = [byte] with PER encoded data
-%% Value = [byte] with decoded data (which must be decoded again as some type)
-%%
-decode_open_type(Bytes, _Constraint) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_bin(Bytes2,Len).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_integer(Constraint,Value,NamedNumberList) -> CompleteList
-%% encode_integer(Constraint,Value) -> CompleteList
-%% encode_integer(Constraint,{Name,Value}) -> CompleteList
-%%
-%%
-encode_integer(C,V,NamedNumberList) when is_atom(V) ->
- case lists:keysearch(V,1,NamedNumberList) of
- {value,{_,NewV}} ->
- encode_integer(C,NewV);
- _ ->
- exit({error,{asn1,{namednumber,V}}})
- end;
-encode_integer(C,V,_NamedNumberList) when is_integer(V) ->
- encode_integer(C,V);
-encode_integer(C,{Name,V},NamedNumberList) when is_atom(Name) ->
- encode_integer(C,V,NamedNumberList).
-
-encode_integer(C,{Name,Val}) when is_atom(Name) ->
- encode_integer(C,Val);
-
-encode_integer([{Rc,_Ec}],Val) when is_tuple(Rc) -> % XXX when is this invoked? First argument most often a list,...Ok this is the extension case...but it doesn't work.
- case (catch encode_integer([Rc],Val)) of
- {'EXIT',{error,{asn1,_}}} ->
-% [{bits,1,1},encode_unconstrained_number(Val)];
- [1,encode_unconstrained_number(Val)];
- Encoded ->
-% [{bits,1,0},Encoded]
- [0,Encoded]
- end;
-
-encode_integer([],Val) ->
- encode_unconstrained_number(Val);
-%% The constraint is the effective constraint, and in this case is a number
-encode_integer([{'SingleValue',V}],V) ->
- [];
-encode_integer([{'ValueRange',VR={Lb,Ub},Range,PreEnc}],Val) when Val >= Lb,
- Ub >= Val ->
- %% this case when NamedNumberList
- encode_constrained_number(VR,Range,PreEnc,Val);
-encode_integer([{'ValueRange',{Lb,'MAX'}}],Val) ->
- encode_semi_constrained_number(Lb,Val);
-encode_integer([{'ValueRange',{'MIN',_}}],Val) ->
- encode_unconstrained_number(Val);
-encode_integer([{'ValueRange',VR={_Lb,_Ub}}],Val) ->
- encode_constrained_number(VR,Val);
-encode_integer(_,Val) ->
- exit({error,{asn1,{illegal_value,Val}}}).
-
-
-%% X.691:10.6 Encoding of a normally small non-negative whole number
-%% Use this for encoding of CHOICE index if there is an extension marker in
-%% the CHOICE
-encode_small_number({Name,Val}) when is_atom(Name) ->
- encode_small_number(Val);
-encode_small_number(Val) when Val =< 63 ->
-% [{bits,1,0},{bits,6,Val}];
-% [{bits,7,Val}]; % same as above but more efficient
- [10,7,Val]; % same as above but more efficient
-encode_small_number(Val) ->
-% [{bits,1,1},encode_semi_constrained_number(0,Val)].
- [1,encode_semi_constrained_number(0,Val)].
-
-decode_small_number(Bytes) ->
- {Bit,Bytes2} = getbit(Bytes),
- case Bit of
- 0 ->
- getbits(Bytes2,6);
- 1 ->
- decode_semi_constrained_number(Bytes2)
- end.
-
-%% X.691:10.7 Encoding of a semi-constrained whole number
-%% might be an optimization encode_semi_constrained_number(0,Val) ->
-encode_semi_constrained_number(C,{Name,Val}) when is_atom(Name) ->
- encode_semi_constrained_number(C,Val);
-encode_semi_constrained_number({Lb,'MAX'},Val) ->
- encode_semi_constrained_number(Lb,Val);
-encode_semi_constrained_number(Lb,Val) ->
- Val2 = Val - Lb,
- Oct = eint_positive(Val2),
- Len = length(Oct),
- if
- Len < 128 ->
- %{octets,[Len|Oct]}; % equiv with encode_length(undefined,Len) but faster
- [20,Len+1,[Len|Oct]];
- Len < 256 ->
- [encode_length(undefined,Len),[20,Len,Oct]];
- true ->
- [encode_length(undefined,Len),[21,<<Len:16>>,Oct]]
- end.
-
-decode_semi_constrained_number(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {V,Bytes3} = getoctets(Bytes2,Len),
- {V,Bytes3}.
-
-encode_constrained_number({Lb,_Ub},_Range,{bits,N},Val) ->
- Val2 = Val-Lb,
-% {bits,N,Val2};
- [10,N,Val2];
-encode_constrained_number({Lb,_Ub},_Range,{octets,N},Val) when N < 256->
- %% N is 8 or 16 (1 or 2 octets)
- Val2 = Val-Lb,
-% {octets,<<Val2:N/unit:8>>};
- [20,N,Val2];
-encode_constrained_number({Lb,_Ub},_Range,{octets,N},Val) -> % N>255
- %% N is 8 or 16 (1 or 2 octets)
- Val2 = Val-Lb,
-% {octets,<<Val2:N/unit:8>>};
- [21,<<N:16>>,Val2];
-encode_constrained_number({Lb,_Ub},Range,_,Val) ->
- Val2 = Val-Lb,
- if
- Range =< 16#1000000 -> % max 3 octets
- Octs = eint_positive(Val2),
-% [encode_length({1,3},size(Octs)),{octets,Octs}];
- L = length(Octs),
- [encode_length({1,3},L),[20,L,Octs]];
- Range =< 16#100000000 -> % max 4 octets
- Octs = eint_positive(Val2),
-% [encode_length({1,4},size(Octs)),{octets,Octs}];
- L = length(Octs),
- [encode_length({1,4},L),[20,L,Octs]];
- Range =< 16#10000000000 -> % max 5 octets
- Octs = eint_positive(Val2),
-% [encode_length({1,5},size(Octs)),{octets,Octs}];
- L = length(Octs),
- [encode_length({1,5},L),[20,L,Octs]];
- true ->
- exit({not_supported,{integer_range,Range}})
- end.
-
-encode_constrained_number(Range,{Name,Val}) when is_atom(Name) ->
- encode_constrained_number(Range,Val);
-encode_constrained_number({Lb,Ub},Val) when Val >= Lb, Ub >= Val ->
- Range = Ub - Lb + 1,
- Val2 = Val - Lb,
- if
- Range == 1 -> [];
- Range == 2 ->
-% Size = {bits,1,Val2};
- [Val2];
- Range =< 4 ->
-% Size = {bits,2,Val2};
- [10,2,Val2];
- Range =< 8 ->
- [10,3,Val2];
- Range =< 16 ->
- [10,4,Val2];
- Range =< 32 ->
- [10,5,Val2];
- Range =< 64 ->
- [10,6,Val2];
- Range =< 128 ->
- [10,7,Val2];
- Range =< 255 ->
- [10,8,Val2];
- Range =< 256 ->
-% Size = {octets,[Val2]};
- [20,1,Val2];
- Range =< 65536 ->
-% Size = {octets,<<Val2:16>>};
- [20,2,<<Val2:16>>];
- Range =< (1 bsl (255*8)) ->
- Octs = binary:encode_unsigned(Val2),
- RangeOcts = binary:encode_unsigned(Range - 1),
- OctsLen = erlang:byte_size(Octs),
- RangeOctsLen = erlang:byte_size(RangeOcts),
- LengthBitsNeeded = minimum_bits(RangeOctsLen - 1),
- [10,LengthBitsNeeded,OctsLen-1,20,OctsLen,Octs];
- true ->
- exit({not_supported,{integer_range,Range}})
- end;
-encode_constrained_number({_,_},Val) ->
- exit({error,{asn1,{illegal_value,Val}}}).
-
-decode_constrained_number(Buffer,VR={Lb,Ub}) ->
- Range = Ub - Lb + 1,
- decode_constrained_number(Buffer,VR,Range).
-
-decode_constrained_number(Buffer,{Lb,_Ub},Range) ->
- % Val2 = Val - Lb,
- {Val,Remain} =
- if
- Range == 1 ->
- {0,Buffer};
- Range == 2 ->
- getbits(Buffer,1);
- Range =< 4 ->
- getbits(Buffer,2);
- Range =< 8 ->
- getbits(Buffer,3);
- Range =< 16 ->
- getbits(Buffer,4);
- Range =< 32 ->
- getbits(Buffer,5);
- Range =< 64 ->
- getbits(Buffer,6);
- Range =< 128 ->
- getbits(Buffer,7);
- Range =< 255 ->
- getbits(Buffer,8);
- Range =< 256 ->
- getoctets(Buffer,1);
- Range =< 65536 ->
- getoctets(Buffer,2);
- Range =< (1 bsl (255*8)) ->
- OList = binary:bin_to_list(binary:encode_unsigned(Range - 1)),
- RangeOctLen = length(OList),
- {Len, Bytes} = decode_length(Buffer, {1, RangeOctLen}),
- {Octs, RestBytes} = getoctets_as_bin(Bytes, Len),
- {binary:decode_unsigned(Octs), RestBytes};
- true ->
- exit({not_supported,{integer_range,Range}})
- end,
- {Val+Lb,Remain}.
-
-%% For some reason the minimum bits needed in the length field in
-%% the encoding of constrained whole numbers must always be at least 2?
-minimum_bits(N) when N < 4 -> 2;
-minimum_bits(N) when N < 8 -> 3;
-minimum_bits(N) when N < 16 -> 4;
-minimum_bits(N) when N < 32 -> 5;
-minimum_bits(N) when N < 64 -> 6;
-minimum_bits(N) when N < 128 -> 7;
-minimum_bits(_N) -> 8.
-
-%% X.691:10.8 Encoding of an unconstrained whole number
-
-encode_unconstrained_number(Val) when Val >= 0 ->
- Oct = eint(Val,[]),
- Len = length(Oct),
- if
- Len < 128 ->
- %{octets,[Len|Oct]}; % equiv with encode_length(undefined,Len) but faster
- [20,Len+1,[Len|Oct]];
- Len < 256 ->
-% [encode_length(undefined,Len),20,Len,Oct];
- [20,Len+2,<<2:2,Len:14>>,Oct];% equiv with encode_length(undefined,Len) but faster
- true ->
-% [encode_length(undefined,Len),{octets,Oct}]
- [encode_length(undefined,Len),[21,<<Len:16>>,Oct]]
- end;
-encode_unconstrained_number(Val) -> % negative
- Oct = enint(Val,[]),
- Len = length(Oct),
- if
- Len < 128 ->
-% {octets,[Len|Oct]}; % equiv with encode_length(undefined,Len) but faster
- [20,Len+1,[Len|Oct]];% equiv with encode_length(undefined,Len) but faster
- Len < 256 ->
-% [encode_length(undefined,Len),20,Len,Oct];
- [20,Len+2,<<2:2,Len:14>>,Oct];% equiv with encode_length(undefined,Len) but faster
- true ->
- %[encode_length(undefined,Len),{octets,Oct}]
- [encode_length(undefined,Len),[21,<<Len:16>>,Oct]]
- end.
-
-
-%% used for positive Values which don't need a sign bit
-%% returns a list
-eint_positive(Val) ->
- case eint(Val,[]) of
- [0,B1|T] ->
- [B1|T];
- T ->
- T
- end.
-
-
-eint(0, [B|Acc]) when B < 128 ->
- [B|Acc];
-eint(N, Acc) ->
- eint(N bsr 8, [N band 16#ff| Acc]).
-
-enint(-1, [B1|T]) when B1 > 127 ->
- [B1|T];
-enint(N, Acc) ->
- enint(N bsr 8, [N band 16#ff|Acc]).
-
-%% X.691:10.9 Encoding of a length determinant
-%%encode_small_length(undefined,Len) -> % null means no UpperBound
-%% encode_small_number(Len).
-
-%% X.691:10.9.3.5
-%% X.691:10.9.3.7
-encode_length(undefined,Len) -> % un-constrained
- if
- Len < 128 ->
-% {octets,[Len]};
- [20,1,Len];
- Len < 16384 ->
- %{octets,<<2:2,Len:14>>};
- [20,2,<<2:2,Len:14>>];
- true -> % should be able to endode length >= 16384 i.e. fragmented length
- exit({error,{asn1,{encode_length,{nyi,above_16k}}}})
- end;
-
-encode_length({0,'MAX'},Len) ->
- encode_length(undefined,Len);
-encode_length(Vr={Lb,Ub},Len) when Ub =< 65535 ,Lb >= 0 -> % constrained
- encode_constrained_number(Vr,Len);
-encode_length({Lb,_Ub},Len) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
- encode_length(undefined,Len);
-encode_length({Vr={Lb,Ub},Ext},Len)
- when Ub =< 65535 ,Lb >= 0,Len=<Ub, is_list(Ext) ->
- %% constrained extensible
- [0,encode_constrained_number(Vr,Len)];
-encode_length({{Lb,_},Ext},Len) when is_list(Ext) ->
- [1,encode_semi_constrained_number(Lb,Len)];
-encode_length(SingleValue,_Len) when is_integer(SingleValue) ->
- [].
-
-%% X.691 10.9.3.4 (only used for length of bitmap that prefixes extension
-%% additions in a sequence or set
-encode_small_length(Len) when Len =< 64 ->
-%% [{bits,1,0},{bits,6,Len-1}];
-% {bits,7,Len-1}; % the same as above but more efficient
- [10,7,Len-1];
-encode_small_length(Len) ->
-% [{bits,1,1},encode_length(undefined,Len)].
- [1,encode_length(undefined,Len)].
-
-
-decode_length(Buffer,undefined) -> % un-constrained
- case align(Buffer) of
- <<0:1,Oct:7,Rest/binary>> ->
- {Oct,Rest};
- <<2:2,Val:14,Rest/binary>> ->
- {Val,Rest};
- <<3:2,_Val:14,_Rest/binary>> ->
- %% this case should be fixed
- exit({error,{asn1,{decode_length,{nyi,above_16k}}}})
- end;
-
-decode_length(Buffer,{Lb,Ub}) when Ub =< 65535 ,Lb >= 0 -> % constrained
- decode_constrained_number(Buffer,{Lb,Ub});
-decode_length(Buffer,{Lb,_Ub}) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
- decode_length(Buffer,undefined);
-decode_length(Buffer,{{Lb,Ub},Ext}) when is_list(Ext) ->
- case getbit(Buffer) of
- {0,Buffer2} ->
- decode_length(Buffer2, {Lb,Ub});
- {1,Buffer2} ->
- decode_length(Buffer2, undefined)
- end;
-
-
-%When does this case occur with {_,_Lb,Ub} ??
-% X.691:10.9.3.5
-decode_length(Bin,{_,_Lb,_Ub}) -> % Unconstrained or large Ub NOTE! this case does not cover case when Ub > 65535
- case Bin of
- <<0:1,Val:7,Rest/bitstring>> ->
- {Val,Rest};
- _ ->
- case align(Bin) of
- <<2:2,Val:14,Rest/binary>> ->
- {Val,Rest};
- <<3:2,_:14,_Rest/binary>> ->
- exit({error,{asn1,{decode_length,{nyi,length_above_64K}}}})
- end
- end;
-decode_length(Buffer,SingleValue) when is_integer(SingleValue) ->
- {SingleValue,Buffer}.
-
-
-
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-%% Bitstring value, ITU_T X.690 Chapter 8.5
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-
-%%===============================================================================
-%% encode bitstring value
-%%===============================================================================
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% bitstring NamedBitList
-%% Val can be of:
-%% - [identifiers] where only named identifers are set to one,
-%% the Constraint must then have some information of the
-%% bitlength.
-%% - [list of ones and zeroes] all bits
-%% - integer value representing the bitlist
-%% C is constraint Len, only valid when identifiers
-
-
-%% when the value is a list of {Unused,BinBits}, where
-%% Unused = integer(),
-%% BinBits = binary().
-
-encode_bit_string(C,Bin={Unused,BinBits},NamedBitList) when is_integer(Unused),
- is_binary(BinBits) ->
- encode_bin_bit_string(C,Bin,NamedBitList);
-
-%% when the value is a list of named bits
-
-encode_bit_string(C, LoNB=[FirstVal | _RestVal], NamedBitList) when is_atom(FirstVal) ->
- ToSetPos = get_all_bitposes(LoNB, NamedBitList, []),
- BitList = make_and_set_list(ToSetPos,0),
- encode_bit_string(C,BitList,NamedBitList);% consider the constraint
-
-encode_bit_string(C, BL=[{bit,_} | _RestVal], NamedBitList) ->
- ToSetPos = get_all_bitposes(BL, NamedBitList, []),
- BitList = make_and_set_list(ToSetPos,0),
- encode_bit_string(C,BitList,NamedBitList);
-
-%% when the value is a list of ones and zeroes
-encode_bit_string(Int, BitListValue, _)
- when is_list(BitListValue),is_integer(Int),Int =< 16 ->
- %% The type is constrained by a single value size constraint
- %% range_check(Int,length(BitListValue)),
- [40,Int,length(BitListValue),BitListValue];
-encode_bit_string(Int, BitListValue, _)
- when is_list(BitListValue),is_integer(Int), Int =< 255 ->
- %% The type is constrained by a single value size constraint
- %% range_check(Int,length(BitListValue)),
- [2,40,Int,length(BitListValue),BitListValue];
-encode_bit_string(Int, BitListValue, _)
- when is_list(BitListValue),is_integer(Int), Int < ?'64K' ->
- {Code,DesiredLength,Length} =
- case length(BitListValue) of
- B1 when B1 > Int ->
- exit({error,{'BIT_STRING_length_greater_than_SIZE',
- Int,BitListValue}});
- B1 when B1 =< 255,Int =< 255 ->
- {40,Int,B1};
- B1 when B1 =< 255 ->
- {42,<<Int:16>>,B1};
- B1 ->
- {43,<<Int:16>>,<<B1:16>>}
- end,
- %% The type is constrained by a single value size constraint
- [2,Code,DesiredLength,Length,BitListValue];
-encode_bit_string(no, BitListValue,[])
- when is_list(BitListValue) ->
- [encode_length(undefined,length(BitListValue)),
- 2,BitListValue];
-encode_bit_string({{Fix,Fix},Ext}, BitListValue,[])
- when is_integer(Fix), is_list(Ext) ->
- case length(BitListValue) of
- Len when Len =< Fix ->
- [0,encode_bit_string(Fix,BitListValue,[])];
- _ ->
- [1,encode_bit_string(no,BitListValue,[])]
- end;
-encode_bit_string(C, BitListValue,[])
- when is_list(BitListValue) ->
- [encode_length(C,length(BitListValue)),
- 2,BitListValue];
-encode_bit_string(no, BitListValue,_NamedBitList)
- when is_list(BitListValue) ->
- %% this case with an unconstrained BIT STRING can be made more efficient
- %% if the complete driver can take a special code so the length field
- %% is encoded there.
- NewBitLVal = lists:reverse(lists:dropwhile(fun(0)->true;(1)->false end,
- lists:reverse(BitListValue))),
- [encode_length(undefined,length(NewBitLVal)),
- 2,NewBitLVal];
-encode_bit_string({{Fix,Fix},Ext}, BitListValue,_NamedBitList)
- when is_integer(Fix), is_list(Ext) ->
- case length(BitListValue) of
- Len when Len =< Fix ->
- [0,encode_bit_string(Fix,BitListValue,_NamedBitList)];
- _ ->
- [1,encode_bit_string(no,BitListValue,_NamedBitList)]
- end;
-encode_bit_string(C,BitListValue,_NamedBitList)
- when is_list(BitListValue) ->% C = {_,'MAX'}
-% NewBitLVal = lists:reverse(lists:dropwhile(fun(0)->true;(1)->false end,
-% lists:reverse(BitListValue))),
- NewBitLVal = bit_string_trailing_zeros(BitListValue,C),
- [encode_length(C,length(NewBitLVal)),
- 2,NewBitLVal];
-
-
-%% when the value is an integer
-encode_bit_string(C, IntegerVal, NamedBitList) when is_integer(IntegerVal)->
- BitList = int_to_bitlist(IntegerVal),
- encode_bit_string(C,BitList,NamedBitList);
-
-%% when the value is a tuple
-encode_bit_string(C,{Name,Val}, NamedBitList) when is_atom(Name) ->
- encode_bit_string(C,Val,NamedBitList).
-
-bit_string_trailing_zeros(BitList,C) when is_integer(C) ->
- bit_string_trailing_zeros1(BitList,C,C);
-bit_string_trailing_zeros(BitList,{Lb,Ub}) when is_integer(Lb) ->
- bit_string_trailing_zeros1(BitList,Lb,Ub);
-bit_string_trailing_zeros(BitList,{{Lb,Ub},_}) when is_integer(Lb) ->
- bit_string_trailing_zeros1(BitList,Lb,Ub);
-bit_string_trailing_zeros(BitList,_) ->
- BitList.
-
-bit_string_trailing_zeros1(BitList,Lb,Ub) ->
- case length(BitList) of
- Lb -> BitList;
- B when B<Lb -> BitList++lists:duplicate(Lb-B,0);
- D -> F = fun(L,LB,LB,_,_)->lists:reverse(L);
- ([0|R],L1,LB,UB,Fun)->Fun(R,L1-1,LB,UB,Fun);
- (L,L1,_,UB,_)when L1 =< UB -> lists:reverse(L);
- (_,_L1,_,_,_) ->exit({error,{list_length_BIT_STRING,
- BitList}}) end,
- F(lists:reverse(BitList),D,Lb,Ub,F)
- end.
-
-%% encode_bin_bit_string/3, when value is a tuple of Unused and BinBits.
-%% Unused = integer(),i.e. number unused bits in least sign. byte of
-%% BinBits = binary().
-encode_bin_bit_string(C,{Unused,BinBits},_NamedBitList)
- when is_integer(C),C=<16 ->
- range_check(C,bit_size(BinBits) - Unused),
- [45,C,size(BinBits),BinBits];
-encode_bin_bit_string(C,{Unused,BinBits},_NamedBitList)
- when is_integer(C), C =< 255 ->
- range_check(C,bit_size(BinBits) - Unused),
- [2,45,C,size(BinBits),BinBits];
-encode_bin_bit_string(C,{Unused,BinBits},_NamedBitList)
- when is_integer(C), C =< 65535 ->
- range_check(C,bit_size(BinBits) - Unused),
- case size(BinBits) of
- Size when Size =< 255 ->
- [2,46,<<C:16>>,Size,BinBits];
- Size ->
- [2,47,<<C:16>>,<<Size:16>>,BinBits]
- end;
-%% encode_bin_bit_string(C,{_Unused,BinBits},_NamedBitList)
-%% when is_integer(C) ->
-%% exit({error,{asn1, {bitstring_size, not_supported, C}}});
-encode_bin_bit_string(C,UnusedAndBin={_,_},NamedBitList) ->
-% UnusedAndBin1 = {Unused1,Bin1} =
- {Unused1,Bin1} =
- %% removes all trailing bits if NamedBitList is not empty
- remove_trailing_bin(NamedBitList,UnusedAndBin),
- case C of
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
-% [encode_length({Lb,Ub},size(Bin1)*8 - Unused1),
-% align,UnusedAndBin1];
- Size=size(Bin1),
- [encode_length({Lb,Ub},Size*8 - Unused1),
- 2,octets_unused_to_complete(Unused1,Size,Bin1)];
- no ->
- Size=size(Bin1),
- [encode_length(undefined,Size*8 - Unused1),
- 2,octets_unused_to_complete(Unused1,Size,Bin1)];
- {{Fix,Fix},Ext} when is_integer(Fix),is_list(Ext) ->
- %%[encode_length(Sc,size(Bin1)*8 - Unused1),
- case size(Bin1)*8 - Unused1 of
- Size when Size =< Fix ->
- [0,encode_bin_bit_string(Fix,UnusedAndBin,NamedBitList)];
- _Size ->
- [1,encode_bin_bit_string(no,UnusedAndBin,NamedBitList)]
- end;
- Sc ->
- Size=size(Bin1),
- [encode_length(Sc,Size*8 - Unused1),
- 2,octets_unused_to_complete(Unused1,Size,Bin1)]
- end.
-
-range_check(C,C) when is_integer(C) ->
- ok;
-range_check(C1,C2) when is_integer(C1) ->
- exit({error,{asn1,{bit_string_out_of_range,{C1,C2}}}}).
-
-remove_trailing_bin([], {Unused,Bin}) ->
- {Unused,Bin};
-remove_trailing_bin(_NamedNumberList,{_Unused,<<>>}) ->
- {0,<<>>};
-remove_trailing_bin(NamedNumberList, {_Unused,Bin}) ->
- Size = size(Bin)-1,
- <<Bfront:Size/binary, LastByte:8>> = Bin,
- %% clear the Unused bits to be sure
-% LastByte1 = LastByte band (((1 bsl Unused) -1) bxor 255),% why this???
- Unused1 = trailingZeroesInNibble(LastByte band 15),
- Unused2 =
- case Unused1 of
- 4 ->
- 4 + trailingZeroesInNibble(LastByte bsr 4);
- _ -> Unused1
- end,
- case Unused2 of
- 8 ->
- remove_trailing_bin(NamedNumberList,{0,Bfront});
- _ ->
- {Unused2,Bin}
- end.
-
-
-trailingZeroesInNibble(0) ->
- 4;
-trailingZeroesInNibble(1) ->
- 0;
-trailingZeroesInNibble(2) ->
- 1;
-trailingZeroesInNibble(3) ->
- 0;
-trailingZeroesInNibble(4) ->
- 2;
-trailingZeroesInNibble(5) ->
- 0;
-trailingZeroesInNibble(6) ->
- 1;
-trailingZeroesInNibble(7) ->
- 0;
-trailingZeroesInNibble(8) ->
- 3;
-trailingZeroesInNibble(9) ->
- 0;
-trailingZeroesInNibble(10) ->
- 1;
-trailingZeroesInNibble(11) ->
- 0;
-trailingZeroesInNibble(12) -> %#1100
- 2;
-trailingZeroesInNibble(13) ->
- 0;
-trailingZeroesInNibble(14) ->
- 1;
-trailingZeroesInNibble(15) ->
- 0.
-
-%%%%%%%%%%%%%%%
-%% The result is presented as a list of named bits (if possible)
-%% else as a tuple {Unused,Bits}. Unused is the number of unused
-%% bits, least significant bits in the last byte of Bits. Bits is
-%% the BIT STRING represented as a binary.
-%%
-decode_compact_bit_string(Buffer, C, NamedNumberList) ->
- case get_constraint(C,'SizeConstraint') of
- 0 -> % fixed length
- {{8,0},Buffer};
- V when is_integer(V),V=<16 -> %fixed length 16 bits or less
- compact_bit_string(Buffer,V,NamedNumberList);
- V when is_integer(V),V=<65536 -> %fixed length > 16 bits
- Bytes2 = align(Buffer),
- compact_bit_string(Bytes2,V,NamedNumberList);
- V when is_integer(V) -> % V > 65536 => fragmented value
- {BitStr,Buffer2} = decode_fragmented_bits(Buffer,V),
- case bit_size(BitStr) band 7 of
- 0 -> {{0,BitStr},Buffer2};
- N -> {{8-N,<<BitStr/bitstring,0:(8-N)>>},Buffer2}
- end;
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- %% This case may demand decoding of fragmented length/value
- {Len,Bytes2} = decode_length(Buffer,{Lb,Ub}),
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList);
- no ->
- %% This case may demand decoding of fragmented length/value
- {Len,Bytes2} = decode_length(Buffer,undefined),
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList);
- {{Fix,Fix},Ext} = Sc when is_integer(Fix), is_list(Ext) ->
- case decode_length(Buffer,Sc) of
- {Len,Bytes2} when Len > Fix ->
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList);
- {Len,Bytes2} when Len > 16 ->
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList);
- {Len,Bytes2} ->
- compact_bit_string(Bytes2,Len,NamedNumberList)
- end;
- Sc ->
- {Len,Bytes2} = decode_length(Buffer,Sc),
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList)
- end.
-
-
-%%%%%%%%%%%%%%%
-%% The result is presented as a list of named bits (if possible)
-%% else as a list of 0 and 1.
-%%
-decode_bit_string(Buffer, C, NamedNumberList) ->
- case get_constraint(C,'SizeConstraint') of
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- {Len,Bytes2} = decode_length(Buffer,{Lb,Ub}),
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- no ->
- {Len,Bytes2} = decode_length(Buffer,undefined),
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- 0 -> % fixed length
- {[],Buffer}; % nothing to encode
- V when is_integer(V),V=<16 -> % fixed length 16 bits or less
- bit_list_or_named(Buffer,V,NamedNumberList);
- V when is_integer(V),V=<65536 ->
- Bytes2 = align(Buffer),
- bit_list_or_named(Bytes2,V,NamedNumberList);
- V when is_integer(V) ->
- Bytes2 = align(Buffer),
- {BinBits,_Bytes3} = decode_fragmented_bits(Bytes2,V),
- bit_list_or_named(BinBits,V,NamedNumberList);
- {{Fix,Fix},Ext} =Sc when is_integer(Fix), is_list(Ext) ->
- case decode_length(Buffer,Sc) of
- {Len,Bytes2} when Len > Fix ->
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- {Len,Bytes2} when Len > 16 ->
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- {Len,Bytes2} ->
- bit_list_or_named(Bytes2,Len,NamedNumberList)
- end;
- Sc -> % extension marker
- {Len,Bytes2} = decode_length(Buffer,Sc),
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList)
- end.
-
-
-%% if no named bits are declared we will return a
-%% {Unused,Bits}. Unused = integer(),
-%% Bits = binary().
-compact_bit_string(Buffer,Len,[]) ->
- {BitStr,Rest} = getbits_as_binary(Len,Buffer), % {{Unused,BinBits},NewBuffer}
- PadLen = (8 - (bit_size(BitStr) rem 8)) rem 8,
- {{PadLen,<<BitStr/bitstring,0:PadLen>>},Rest};
-compact_bit_string(Buffer,Len,NamedNumberList) ->
- bit_list_or_named(Buffer,Len,NamedNumberList).
-
-
-%% if no named bits are declared we will return a
-%% BitList = [0 | 1]
-
-bit_list_or_named(Buffer,Len,[]) ->
- getbits_as_list(Len,Buffer);
-
-%% if there are named bits declared we will return a named
-%% BitList where the names are atoms and unnamed bits represented
-%% as {bit,Pos}
-%% BitList = [atom() | {bit,Pos}]
-%% Pos = integer()
-
-bit_list_or_named(Buffer,Len,NamedNumberList) ->
- {BitList,Rest} = getbits_as_list(Len,Buffer),
- {bit_list_or_named1(0,BitList,NamedNumberList,[]), Rest}.
-
-bit_list_or_named1(Pos,[0|Bt],Names,Acc) ->
- bit_list_or_named1(Pos+1,Bt,Names,Acc);
-bit_list_or_named1(Pos,[1|Bt],Names,Acc) ->
- case lists:keysearch(Pos,2,Names) of
- {value,{Name,_}} ->
- bit_list_or_named1(Pos+1,Bt,Names,[Name|Acc]);
- _ ->
- bit_list_or_named1(Pos+1,Bt,Names,[{bit,Pos}|Acc])
- end;
-bit_list_or_named1(_Pos,[],_Names,Acc) ->
- lists:reverse(Acc).
-
-
-
-%%%%%%%%%%%%%%%
-%%
-
-int_to_bitlist(Int) when is_integer(Int), Int > 0 ->
- [Int band 1 | int_to_bitlist(Int bsr 1)];
-int_to_bitlist(0) ->
- [].
-
-
-%%%%%%%%%%%%%%%%%%
-%% get_all_bitposes([list of named bits to set], named_bit_db, []) ->
-%% [sorted_list_of_bitpositions_to_set]
-
-get_all_bitposes([{bit,ValPos}|Rest], NamedBitList, Ack) ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack ]);
-
-get_all_bitposes([Val | Rest], NamedBitList, Ack) ->
- case lists:keysearch(Val, 1, NamedBitList) of
- {value, {_ValName, ValPos}} ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]);
- _ ->
- exit({error,{asn1, {bitstring_namedbit, Val}}})
- end;
-get_all_bitposes([], _NamedBitList, Ack) ->
- lists:sort(Ack).
-
-%%%%%%%%%%%%%%%%%%
-%% make_and_set_list([list of positions to set to 1])->
-%% returns list with all in SetPos set.
-%% in positioning in list the first element is 0, the second 1 etc.., but
-%%
-
-make_and_set_list([XPos|SetPos], XPos) ->
- [1 | make_and_set_list(SetPos, XPos + 1)];
-make_and_set_list([Pos|SetPos], XPos) ->
- [0 | make_and_set_list([Pos | SetPos], XPos + 1)];
-make_and_set_list([], _) ->
- [].
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% X.691:16
-%% encode_octet_string(Constraint,ExtensionMarker,Val)
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-encode_octet_string(C,Val) ->
- encode_octet_string(C,false,Val).
-
-encode_octet_string(C,Bool,{_Name,Val}) ->
- encode_octet_string(C,Bool,Val);
-encode_octet_string(_C,true,_Val) ->
- exit({error,{asn1,{'not_supported',extensionmarker}}});
-encode_octet_string(SZ={_,_},false,Val) ->
-% [encode_length(SZ,length(Val)),align,
-% {octets,Val}];
- Len = length(Val),
- try
- [encode_length(SZ,Len),2,
- octets_to_complete(Len,Val)]
- catch
- exit:{error,{asn1,{encode_length,_}}} ->
- encode_fragmented_octet_string(Val)
- end;
-encode_octet_string(SZ,false,Val) when is_list(SZ) ->
- Len = length(Val),
- try
- [encode_length({hd(SZ),lists:max(SZ)},Len),2,
- octets_to_complete(Len,Val)]
- catch
- exit:{error,{asn1,{encode_length,_}}} ->
- encode_fragmented_octet_string(Val)
- end;
-encode_octet_string(Sv,false,Val) when is_integer(Sv) ->
- encode_fragmented_octet_string(Val);
-encode_octet_string(no,false,Val) ->
- Len = length(Val),
- try
- [encode_length(undefined,Len),2,
- octets_to_complete(Len,Val)]
- catch
- exit:{error,{asn1,{encode_length,_}}} ->
- encode_fragmented_octet_string(Val)
- end;
-encode_octet_string(C,_,_) ->
- exit({error,{not_implemented,C}}).
-
-encode_fragmented_octet_string(Val) ->
- Bin = iolist_to_binary(Val),
- efos_1(Bin).
-
-efos_1(<<B1:16#C000/binary,B2:16#4000/binary,T/binary>>) ->
- [20,1,<<3:2,4:6>>,
- octets_to_complete(16#C000, B1),
- octets_to_complete(16#4000, B2)|efos_1(T)];
-efos_1(<<B:16#C000/binary,T/binary>>) ->
- [20,1,<<3:2,3:6>>,octets_to_complete(16#C000, B)|efos_1(T)];
-efos_1(<<B:16#8000/binary,T/binary>>) ->
- [20,1,<<3:2,2:6>>,octets_to_complete(16#8000, B)|efos_1(T)];
-efos_1(<<B:16#4000/binary,T/binary>>) ->
- [20,1,<<3:2,1:6>>,octets_to_complete(16#4000, B)|efos_1(T)];
-efos_1(<<>>) ->
- [20,1,0];
-efos_1(<<B/bitstring>>) ->
- Len = byte_size(B),
- [encode_length(undefined, Len),octets_to_complete(Len, B)].
-
-decode_fragmented(SegSz0, Buf0, Unit) ->
- SegSz = SegSz0 * Unit * ?'16K',
- <<Res:SegSz/bitstring,Buf/bitstring>> = Buf0,
- decode_fragmented_1(Buf, Unit, Res).
-
-decode_fragmented_1(<<0:1,N:7,Buf0/bitstring>>, Unit, Res) ->
- Sz = N*Unit,
- <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
- {<<Res/bitstring,S/bitstring>>,Buf};
-decode_fragmented_1(<<1:1,0:1,N:14,Buf0/bitstring>>, Unit, Res) ->
- Sz = N*Unit,
- <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
- {<<Res/bitstring,S/bitstring>>,Buf};
-decode_fragmented_1(<<1:1,1:1,SegSz0:6,Buf0/bitstring>>, Unit, Res0) ->
- SegSz = SegSz0 * Unit * ?'16K',
- <<Frag:SegSz/bitstring,Buf/bitstring>> = Buf0,
- Res = <<Res0/bitstring,Frag/bitstring>>,
- decode_fragmented_1(Buf, Unit, Res).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Restricted char string types
-%% (NumericString, PrintableString,VisibleString,IA5String,BMPString,UniversalString)
-%% X.691:26 and X.680:34-36
-%%encode_restricted_string(aligned,'BMPString',Constraints,Extension,Val)
-
-
-encode_restricted_string(aligned,{Name,Val}) when is_atom(Name) ->
- encode_restricted_string(aligned,Val);
-
-encode_restricted_string(aligned,Val) when is_list(Val)->
- Len = length(Val),
- [encode_length(undefined,Len),octets_to_complete(Len,Val)].
-
-
-encode_known_multiplier_string(StringType,SizeC,NumBits,CharOutTab,{Name,Val}) when is_atom(Name) ->
- encode_known_multiplier_string(StringType,SizeC,NumBits,CharOutTab,Val);
-encode_known_multiplier_string(_StringType,SizeC,NumBits,CharOutTab,Val) ->
- Result = chars_encode2(Val,NumBits,CharOutTab),
- case SizeC of
- Ub when is_integer(Ub), Ub*NumBits =< 16 ->
- Result;
- Ub when is_integer(Ub),Ub =<65535 -> % fixed length
- [2,Result];
- {Ub,Lb} ->
- [encode_length({Ub,Lb},length(Val)),2,Result];
- no ->
- [encode_length(undefined,length(Val)),2,Result]
- end.
-
-decode_restricted_string(Bytes,aligned) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_list(Bytes2,Len).
-
-decode_known_multiplier_string(StringType,SizeC,NumBits,CharInTab,Bytes) ->
- case SizeC of
- Ub when is_integer(Ub), Ub*NumBits =< 16 ->
- chars_decode(Bytes,NumBits,StringType,CharInTab,Ub);
- Ub when is_integer(Ub),Ub =<65535 -> % fixed length
- Bytes1 = align(Bytes),
- chars_decode(Bytes1,NumBits,StringType,CharInTab,Ub);
- Vl when is_list(Vl) ->
- {Len,Bytes1} = decode_length(Bytes,{hd(Vl),lists:max(Vl)}),
- Bytes2 = align(Bytes1),
- chars_decode(Bytes2,NumBits,StringType,CharInTab,Len);
- no ->
- {Len,Bytes1} = decode_length(Bytes,undefined),
- Bytes2 = align(Bytes1),
- chars_decode(Bytes2,NumBits,StringType,CharInTab,Len);
- {Lb,Ub}->
- {Len,Bytes1} = decode_length(Bytes,{Lb,Ub}),
- Bytes2 = align(Bytes1),
- chars_decode(Bytes2,NumBits,StringType,CharInTab,Len)
- end.
-
-encode_GeneralString(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_GeneralString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_GraphicString(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_GraphicString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_ObjectDescriptor(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_ObjectDescriptor(Bytes) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_TeletexString(_C,Val) -> % equivalent with T61String
- encode_restricted_string(aligned,Val).
-decode_TeletexString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_VideotexString(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_VideotexString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% getBMPChars(Bytes,Len) ->{BMPcharList,RemainingBytes}
-%%
-getBMPChars(<<T/binary>>, 0, Acc) ->
- {lists:reverse(Acc),T};
-getBMPChars(<<0,O2,Bytes1/bitstring>>, Len, Acc) ->
- getBMPChars(Bytes1,Len-1,[O2|Acc]);
-getBMPChars(<<O1,O2,Bytes1/bitstring>>, Len, Acc) ->
- getBMPChars(Bytes1,Len-1,[{0,0,O1,O2}|Acc]).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% chars_encode(C,StringType,Value) -> ValueList
-%%
-%% encodes chars according to the per rules taking the constraint PermittedAlphabet
-%% into account.
-%% This function does only encode the value part and NOT the length
-
-% chars_encode(C,StringType,Value) ->
-% case {StringType,get_constraint(C,'PermittedAlphabet')} of
-% {'UniversalString',{_,Sv}} ->
-% exit({error,{asn1,{'not implemented',"UniversalString with PermittedAlphabet constraint"}}});
-% {'BMPString',{_,Sv}} ->
-% exit({error,{asn1,{'not implemented',"BMPString with PermittedAlphabet constraint"}}});
-% _ ->
-% {NumBits,CharOutTab} = {get_NumBits(C,StringType),get_CharOutTab(C,StringType)},
-% chars_encode2(Value,NumBits,CharOutTab)
-% end.
-
-
-chars_encode2([H|T],NumBits,T1={Min,Max,notab}) when H =< Max, H >= Min ->
-% [[10,NumBits,H-Min]|chars_encode2(T,NumBits,T1)];
- [pre_complete_bits(NumBits,H-Min)|chars_encode2(T,NumBits,T1)];
-chars_encode2([H|T],NumBits,T1={Min,Max,Tab}) when H =< Max, H >= Min ->
-% [[10,NumBits,element(H-Min+1,Tab)]|chars_encode2(T,NumBits,T1)];
- [pre_complete_bits(NumBits,exit_if_false(H,element(H-Min+1,Tab)))|
- chars_encode2(T,NumBits,T1)];
-chars_encode2([{A,B,C,D}|T],NumBits,T1={Min,_Max,notab}) ->
- %% no value range check here (ought to be, but very expensive)
-% [{bits,NumBits,(A*B*C*D)-Min}|chars_encode2(T,NumBits,{Min,Max,notab})];
-% [[10,NumBits,((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min]|chars_encode2(T,NumBits,T1)];
- [pre_complete_bits(NumBits,
- ((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min)|
- chars_encode2(T,NumBits,T1)];
-chars_encode2([H={A,B,C,D}|T],NumBits,{Min,Max,Tab}) ->
- %% no value range check here (ought to be, but very expensive)
- [pre_complete_bits(NumBits,exit_if_false(H,element(((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,Tab)))|chars_encode2(T,NumBits,{Min,Max,notab})];
-chars_encode2([H|_T],_NumBits,{_Min,_Max,_Tab}) ->
- exit({error,{asn1,{illegal_char_value,H}}});
-chars_encode2([],_,_) ->
- [].
-
-exit_if_false(V,false)->
- exit({error,{asn1,{"illegal value according to Permitted alphabet constraint",V}}});
-exit_if_false(_,V) ->V.
-
-pre_complete_bits(NumBits,Val) when NumBits =< 8 ->
- [10,NumBits,Val];
-pre_complete_bits(NumBits,Val) when NumBits =< 16 ->
- [10,NumBits-8,Val bsr 8,10,8,(Val band 255)];
-pre_complete_bits(NumBits,Val) when NumBits =< 2040 -> % 255 * 8
-% LBUsed = NumBits rem 8,
-% {Unused,Len} = case (8 - LBUsed) of
-% 8 -> {0,NumBits div 8};
-% U -> {U,(NumBits div 8) + 1}
-% end,
-% NewVal = Val bsr LBUsed,
-% [30,Unused,Len,<<NewVal:Len/unit:8,Val:LBUsed,0:Unused>>].
- Unused = (8 - (NumBits rem 8)) rem 8,
- Len = NumBits + Unused,
- [30,Unused,Len div 8,<<(Val bsl Unused):Len>>].
-
-
-chars_decode(Bytes,_,'BMPString',_,Len) ->
- getBMPChars(Bytes,Len,[]);
-chars_decode(Bytes,NumBits,_StringType,CharInTab,Len) ->
- chars_decode2(Bytes,CharInTab,NumBits,Len).
-
-
-chars_decode2(Bytes,CharInTab,NumBits,Len) ->
- chars_decode2(Bytes,CharInTab,NumBits,Len,[]).
-
-chars_decode2(Bytes,_CharInTab,_NumBits,0,Acc) ->
- {lists:reverse(Acc),Bytes};
-chars_decode2(Bytes,{Min,Max,notab},NumBits,Len,Acc) when NumBits > 8 ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- Result =
- if
- Char < 256 -> Char;
- true ->
- list_to_tuple(binary_to_list(<<Char:32>>))
- end,
- chars_decode2(Bytes2,{Min,Max,notab},NumBits,Len -1,[Result|Acc]);
-chars_decode2(Bytes,{Min,Max,notab},NumBits,Len,Acc) ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- chars_decode2(Bytes2,{Min,Max,notab},NumBits,Len -1,[Char+Min|Acc]);
-
-%% BMPString and UniversalString with PermittedAlphabet is currently not supported
-chars_decode2(Bytes,{Min,Max,CharInTab},NumBits,Len,Acc) ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- chars_decode2(Bytes2,{Min,Max,CharInTab},NumBits,Len -1,[element(Char+1,CharInTab)|Acc]).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_UTF8String(Val) -> CompleteList
-%% Val -> <<utf8encoded binary>>
-%% CompleteList -> [apropriate codes and values for driver complete]
-%%
-encode_UTF8String(Val) when is_binary(Val) ->
- [encode_length(undefined,size(Val)),
- octets_to_complete(size(Val),Val)];
-encode_UTF8String(Val) ->
- encode_UTF8String(list_to_binary(Val)).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_UTF8String(Bytes) -> {Utf8Binary,RemainingBytes}
-%% Utf8Binary -> <<utf8 encoded binary>>
-%% RemainingBytes -> <<buffer>>
-decode_UTF8String(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {_Bin,_Bytes3} = getoctets_as_bin(Bytes2,Len).
-
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_object_identifier(Val) -> CompleteList
-%% encode_object_identifier({Name,Val}) -> CompleteList
-%% Val -> {Int1,Int2,...,IntN} % N >= 2
-%% Name -> atom()
-%% Int1 -> integer(0..2)
-%% Int2 -> integer(0..39) when Int1 (0..1) else integer()
-%% Int3-N -> integer()
-%% CompleteList -> [{bits,8,Val}|{octets,Ol}|align|...]
-%%
-encode_object_identifier({Name,Val}) when is_atom(Name) ->
- encode_object_identifier(Val);
-encode_object_identifier(Val) ->
- OctetList = e_object_identifier(Val),
- Octets = list_to_binary(OctetList),
- [encode_length(undefined,size(Octets)),
- octets_to_complete(size(Octets),Octets)].
-
-e_object_identifier({'OBJECT IDENTIFIER',V}) ->
- e_object_identifier(V);
-e_object_identifier({Cname,V}) when is_atom(Cname),is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-e_object_identifier({Cname,V}) when is_atom(Cname),is_list(V) ->
- e_object_identifier(V);
-e_object_identifier(V) when is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-
-%% E1 = 0|1|2 and (E2 < 40 when E1 = 0|1)
-e_object_identifier([E1,E2|Tail]) when E1 >= 0, E1 < 2, E2 < 40 ; E1==2 ->
- Head = 40*E1 + E2, % weird
- e_object_elements([Head|Tail],[]);
-e_object_identifier(Oid=[_,_|_Tail]) ->
- exit({error,{asn1,{'illegal_value',Oid}}}).
-
-e_object_elements([],Acc) ->
- lists:reverse(Acc);
-e_object_elements([H|T],Acc) ->
- e_object_elements(T,[e_object_element(H)|Acc]).
-
-e_object_element(Num) when Num < 128 ->
- [Num];
-e_object_element(Num) ->
- [e_o_e(Num bsr 7)|[Num band 2#1111111]].
-e_o_e(Num) when Num < 128 ->
- Num bor 2#10000000;
-e_o_e(Num) ->
- [e_o_e(Num bsr 7)|[(Num band 2#1111111) bor 2#10000000]].
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_object_identifier(Bytes) -> {ObjId,RemainingBytes}
-%% ObjId -> {integer(),integer(),...} % at least 2 integers
-%% RemainingBytes -> [integer()] when integer() (0..255)
-decode_object_identifier(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Octs,Bytes3} = getoctets_as_list(Bytes2,Len),
- [First|Rest] = dec_subidentifiers(Octs,0,[]),
- Idlist = if
- First < 40 ->
- [0,First|Rest];
- First < 80 ->
- [1,First - 40|Rest];
- true ->
- [2,First - 80|Rest]
- end,
- {list_to_tuple(Idlist),Bytes3}.
-
-dec_subidentifiers([H|T],Av,Al) when H >=16#80 ->
- dec_subidentifiers(T,(Av bsl 7) + (H band 16#7F),Al);
-dec_subidentifiers([H|T],Av,Al) ->
- dec_subidentifiers(T,0,[(Av bsl 7) + H |Al]);
-dec_subidentifiers([],_Av,Al) ->
- lists:reverse(Al).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_relative_oid(Val) -> CompleteList
-%% encode_relative_oid({Name,Val}) -> CompleteList
-encode_relative_oid({Name,Val}) when is_atom(Name) ->
- encode_relative_oid(Val);
-encode_relative_oid(Val) when is_tuple(Val) ->
- encode_relative_oid(tuple_to_list(Val));
-encode_relative_oid(Val) when is_list(Val) ->
- Octets = list_to_binary([e_object_element(X)||X <- Val]),
- [encode_length(undefined,size(Octets)),
- octets_to_complete(size(Octets),Octets)].
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_relative_oid(Val) -> CompleteList
-%% decode_relative_oid({Name,Val}) -> CompleteList
-decode_relative_oid(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Octs,Bytes3} = getoctets_as_list(Bytes2,Len),
- ObjVals = dec_subidentifiers(Octs,0,[]),
- {list_to_tuple(ObjVals),Bytes3}.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_real(Val) -> CompleteList
-%% encode_real({Name,Val}) -> CompleteList
-encode_real({Name,Val}) when is_atom(Name) ->
- encode_real(Val);
-encode_real(Real) ->
- {EncVal,Len} = ?RT_COMMON:encode_real([],Real),
- [encode_length(undefined,Len),octets_to_complete(size(EncVal),EncVal)].
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_real(Val) -> {REALvalue,Rest}
-%% decode_real({Name,Val}) -> {REALvalue,Rest}
-decode_real(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {RealVal,Rest,Len} = ?RT_COMMON:decode_real(Bytes2,Len),
- {RealVal,Rest}.
-
-
-get_constraint([{Key,V}],Key) ->
- V;
-get_constraint([],_) ->
- no;
-get_constraint(C,Key) ->
- case lists:keysearch(Key,1,C) of
- false ->
- no;
- {value,{_,V}} ->
- V
- end.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% complete(InList) -> ByteList
-%% Takes a coded list with bits and bytes and converts it to a list of bytes
-%% Should be applied as the last step at encode of a complete ASN.1 type
-%%
-
--ifdef(nodriver).
-
-complete(L) ->
- erlang_complete(L).
-
--else.
-
-%% asn1-1.7
-complete(L) ->
- case asn1rt_nif:encode_per_complete(L) of
- {error, Reason} -> handle_error(Reason, L);
- Else when is_binary(Else) -> Else
- end.
-
-handle_error([],_)->
- exit({error,{asn1,{"memory allocation problem in driver"}}});
-handle_error($1,L) -> % error in complete in driver
- exit({error,{asn1,L}});
-handle_error(ErrL,L) ->
- exit({error,{asn1,ErrL,L}}).
-
--endif.
-
-
-octets_to_complete(Len,Val) when Len < 256 ->
- [20,Len,Val];
-octets_to_complete(Len,Val) ->
- [21,<<Len:16>>,Val].
-
-octets_unused_to_complete(Unused,Len,Val) when Len < 256 ->
- [30,Unused,Len,Val];
-octets_unused_to_complete(Unused,Len,Val) ->
- [31,Unused,<<Len:16>>,Val].
diff --git a/lib/asn1/src/asn1rt_uper_bin.erl b/lib/asn1/src/asn1rt_uper_bin.erl
deleted file mode 100644
index fc65d80245..0000000000
--- a/lib/asn1/src/asn1rt_uper_bin.erl
+++ /dev/null
@@ -1,1487 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2008-2010. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
-%%
--module(asn1rt_uper_bin).
-
-%% encoding / decoding of PER unaligned
-
--include("asn1_records.hrl").
-
-%%-compile(export_all).
-
--export([decode_fragmented/3]).
--export([setext/1, fixoptionals/3,
- fixextensions/2,
- skipextensions/3, getbit/1, getchoice/3 ]).
--export([set_choice/3, encode_integer/2, encode_integer/3]).
--export([encode_small_number/1, encode_boolean/1,
- encode_length/2,
- encode_small_length/1,
- decode_compact_bit_string/3]).
--export([encode_bit_string/3, decode_bit_string/3 ]).
--export([encode_octet_string/2,
- encode_relative_oid/1, decode_relative_oid/1,
- encode_object_identifier/1, decode_object_identifier/1,
- encode_real/1, decode_real/1,
- complete/1, complete_NFP/1]).
-
-
- -export([encode_open_type/2, decode_open_type/2]).
-
- -export([encode_UniversalString/2, decode_UniversalString/2,
- encode_PrintableString/2, decode_PrintableString/2,
- encode_GeneralString/2, decode_GeneralString/2,
- encode_GraphicString/2, decode_GraphicString/2,
- encode_TeletexString/2, decode_TeletexString/2,
- encode_VideotexString/2, decode_VideotexString/2,
- encode_VisibleString/2, decode_VisibleString/2,
- encode_UTF8String/1, decode_UTF8String/1,
- encode_BMPString/2, decode_BMPString/2,
- encode_IA5String/2, decode_IA5String/2,
- encode_NumericString/2, decode_NumericString/2,
- encode_ObjectDescriptor/2, decode_ObjectDescriptor/1
- ]).
-
--define('16K',16384).
--define('32K',32768).
--define('64K',65536).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% setext(true|false) -> CompleteList
-%%
-
-setext(false) ->
- <<0:1>>;
-setext(true) ->
- <<1:1>>.
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% This is the new fixoptionals/3 which is used by the new generates
-%%
-fixoptionals(OptList,OptLength,Val) when is_tuple(Val) ->
- Bits = fixoptionals(OptList,Val,0),
- {Val,<<Bits:OptLength>>};
-
-fixoptionals([],_Val,Acc) ->
- %% Optbits
- Acc;
-fixoptionals([{Pos,DefVal}|Ot],Val,Acc) ->
- case element(Pos,Val) of
- asn1_DEFAULT -> fixoptionals(Ot,Val,Acc bsl 1);
- DefVal -> fixoptionals(Ot,Val,Acc bsl 1);
- _ -> fixoptionals(Ot,Val,(Acc bsl 1) + 1)
- end;
-fixoptionals([Pos|Ot],Val,Acc) ->
- case element(Pos,Val) of
- asn1_NOVALUE -> fixoptionals(Ot,Val,Acc bsl 1);
- asn1_DEFAULT -> fixoptionals(Ot,Val,Acc bsl 1);
- _ -> fixoptionals(Ot,Val,(Acc bsl 1) + 1)
- end.
-
-
-fixextensions({ext,ExtPos,ExtNum},Val) ->
- case fixextensions(ExtPos,ExtNum+ExtPos,Val,0) of
- 0 -> [];
- ExtBits ->
- [encode_small_length(ExtNum),<<ExtBits:ExtNum>>]
- end.
-
-fixextensions(Pos,MaxPos,_,Acc) when Pos >= MaxPos ->
- Acc;
-fixextensions(Pos,ExtPos,Val,Acc) ->
- Bit = case catch(element(Pos+1,Val)) of
- asn1_NOVALUE ->
- 0;
- asn1_NOEXTVALUE ->
- 0;
- {'EXIT',_} ->
- 0;
- _ ->
- 1
- end,
- fixextensions(Pos+1,ExtPos,Val,(Acc bsl 1)+Bit).
-
-skipextensions(Bytes,Nr,ExtensionBitstr) when is_bitstring(ExtensionBitstr) ->
- Prev = Nr - 1,
- case ExtensionBitstr of
- <<_:Prev,1:1,_/bitstring>> ->
- {_,Bytes2} = decode_open_type(Bytes,[]),
- skipextensions(Bytes2, Nr+1, ExtensionBitstr);
- <<_:Prev,0:1,_/bitstring>> ->
- skipextensions(Bytes, Nr+1, ExtensionBitstr);
- _ ->
- Bytes
- end.
-
-
-getchoice(Bytes,1,0) -> % only 1 alternative is not encoded
- {0,Bytes};
-getchoice(Bytes,_,1) ->
- decode_small_number(Bytes);
-getchoice(Bytes,NumChoices,0) ->
- decode_constrained_number(Bytes,{0,NumChoices-1}).
-
-
-%% getbits_as_binary(Num,Bytes) -> {{Unused,BinBits},RestBytes},
-%% Num = integer(),
-%% Bytes = list() | tuple(),
-%% Unused = integer(),
-%% BinBits = binary(),
-%% RestBytes = tuple()
-getbits_as_binary(Num,Bytes) when is_bitstring(Bytes) ->
- <<BS:Num/bitstring,Rest/bitstring>> = Bytes,
- {BS,Rest}.
-
-getbits_as_list(Num,Bytes) when is_bitstring(Bytes) ->
- <<BitStr:Num/bitstring,Rest/bitstring>> = Bytes,
- {[ B || <<B:1>> <= BitStr],Rest}.
-
-getbit(Buffer) ->
- <<B:1,Rest/bitstring>> = Buffer,
- {B,Rest}.
-
-
-getbits(Buffer,Num) when is_bitstring(Buffer) ->
- <<Bs:Num,Rest/bitstring>> = Buffer,
- {Bs,Rest}.
-
-
-
-%% Pick the first Num octets.
-%% Returns octets as an integer with bit significance as in buffer.
-getoctets(Buffer,Num) when is_bitstring(Buffer) ->
- <<Val:Num/integer-unit:8,RestBitStr/bitstring>> = Buffer,
- {Val,RestBitStr}.
-
-%% Pick the first Num octets.
-%% Returns octets as a binary
-getoctets_as_bin(Bin,Num) when is_bitstring(Bin) ->
- <<Octets:Num/binary,RestBin/bitstring>> = Bin,
- {Octets,RestBin}.
-
-%% same as above but returns octets as a List
-getoctets_as_list(Buffer,Num) ->
- {Bin,Buffer2} = getoctets_as_bin(Buffer,Num),
- {binary_to_list(Bin),Buffer2}.
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% set_choice(Alt,Choices,Altnum) -> ListofBitSettings
-%% Alt = atom()
-%% Altnum = integer() | {integer(),integer()}% number of alternatives
-%% Choices = [atom()] | {[atom()],[atom()]}
-%% When Choices is a tuple the first list is the Rootset and the
-%% second is the Extensions and then Altnum must also be a tuple with the
-%% lengths of the 2 lists
-%%
-set_choice(Alt,{L1,L2},{Len1,_Len2}) ->
- case set_choice_tag(Alt,L1) of
- N when is_integer(N), Len1 > 1 ->
- [<<0:1>>, % the value is in the root set
- encode_integer([{'ValueRange',{0,Len1-1}}],N)];
- N when is_integer(N) ->
- <<0:1>>; % no encoding if only 0 or 1 alternative
- false ->
- [<<1:1>>, % extension value
- case set_choice_tag(Alt,L2) of
- N2 when is_integer(N2) ->
- encode_small_number(N2);
- false ->
- unknown_choice_alt
- end]
- end;
-set_choice(Alt,L,Len) ->
- case set_choice_tag(Alt,L) of
- N when is_integer(N), Len > 1 ->
- encode_integer([{'ValueRange',{0,Len-1}}],N);
- N when is_integer(N) ->
- []; % no encoding if only 0 or 1 alternative
- false ->
- [unknown_choice_alt]
- end.
-
-set_choice_tag(Alt,Choices) ->
- set_choice_tag(Alt,Choices,0).
-
-set_choice_tag(Alt,[Alt|_Rest],Tag) ->
- Tag;
-set_choice_tag(Alt,[_H|Rest],Tag) ->
- set_choice_tag(Alt,Rest,Tag+1);
-set_choice_tag(_Alt,[],_Tag) ->
- false.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_fragmented_XXX; decode of values encoded fragmented according
-%% to ITU-T X.691 clause 10.9.3.8. The unit (XXX) is either bits, octets,
-%% characters or number of components (in a choice,sequence or similar).
-%% Buffer is a buffer {Used, Bin}.
-%% C is the constrained length.
-%% If the buffer is not aligned, this function does that.
-decode_fragmented_bits(Buffer,C) ->
- decode_fragmented_bits(Buffer,C,[]).
-decode_fragmented_bits(<<3:2,Len:6,BitStr/bitstring>>,C,Acc) ->
-%% {Value,Bin2} = split_binary(Bin, Len * ?'16K'),
- FragLen = (Len*?'16K') div 8,
- <<Value:FragLen/binary,BitStr2/bitstring>> = BitStr,
- decode_fragmented_bits(BitStr2,C,[Value|Acc]);
-decode_fragmented_bits(<<0:1,0:7,BitStr/bitstring>>,C,Acc) ->
- BinBits = list_to_binary(lists:reverse(Acc)),
- case C of
- Int when is_integer(Int),C == size(BinBits) ->
- {BinBits,BitStr};
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,BinBits}}})
- end;
-decode_fragmented_bits(<<0:1,Len:7,BitStr/bitstring>>,C,Acc) ->
- <<Val:Len/bitstring,Rest/bitstring>> = BitStr,
-%% <<Value:Len/binary-unit:1,Bin2/binary>> = Bin,
- ResBitStr = list_to_bitstring(lists:reverse([Val|Acc])),
- case C of
- Int when is_integer(Int),C == bit_size(ResBitStr) ->
- {ResBitStr,Rest};
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,ResBitStr}}})
- end.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_open_type(Constraint, Value) -> CompleteList
-%% Value = list of bytes of an already encoded value (the list must be flat)
-%% | binary
-%% Contraint = not used in this version
-%%
-encode_open_type(C, Val) when is_list(Val) ->
- encode_open_type(C, list_to_binary(Val));
-encode_open_type(_C, Val) when is_binary(Val) ->
- [encode_length(undefined,size(Val)),Val].
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_open_type(Buffer,Constraint) -> Value
-%% Constraint is not used in this version
-%% Buffer = [byte] with PER encoded data
-%% Value = [byte] with decoded data (which must be decoded again as some type)
-%%
-decode_open_type(Bytes, _C) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_bin(Bytes2,Len).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_integer(Constraint,Value,NamedNumberList) -> CompleteList
-%% encode_integer(Constraint,Value) -> CompleteList
-%% encode_integer(Constraint,{Name,Value}) -> CompleteList
-%%
-%%
-encode_integer(C,V,NamedNumberList) when is_atom(V) ->
- case lists:keysearch(V,1,NamedNumberList) of
- {value,{_,NewV}} ->
- encode_integer(C,NewV);
- _ ->
- exit({error,{asn1,{namednumber,V}}})
- end;
-encode_integer(C,V,_NamedNumberList) when is_integer(V) ->
- encode_integer(C,V);
-encode_integer(C,{Name,V},NamedNumberList) when is_atom(Name) ->
- encode_integer(C,V,NamedNumberList).
-
-encode_integer(C,{Name,Val}) when is_atom(Name) ->
- encode_integer(C,Val);
-
-encode_integer([{Rc,_Ec}],Val) when is_tuple(Rc) -> % XXX when is this invoked? First argument most often a list,...Ok this is the extension case...but it doesn't work.
- case (catch encode_integer([Rc],Val)) of
- {'EXIT',{error,{asn1,_}}} ->
- [<<1:1>>,encode_unconstrained_number(Val)];
- Encoded ->
- [<<0:1>>,Encoded]
- end;
-encode_integer(C,Val ) when is_list(C) ->
- case get_constraint(C,'SingleValue') of
- no ->
- encode_integer1(C,Val);
- V when is_integer(V),V == Val ->
- []; % a type restricted to a single value encodes to nothing
- V when is_list(V) ->
- case lists:member(Val,V) of
- true ->
- encode_integer1(C,Val);
- _ ->
- exit({error,{asn1,{illegal_value,Val}}})
- end;
- _ ->
- exit({error,{asn1,{illegal_value,Val}}})
- end.
-
-encode_integer1(C, Val) ->
- case VR = get_constraint(C,'ValueRange') of
- no ->
- encode_unconstrained_number(Val);
- {Lb,'MAX'} ->
- encode_semi_constrained_number(Lb,Val);
- %% positive with range
- {Lb,Ub} when Val >= Lb,
- Ub >= Val ->
- encode_constrained_number(VR,Val);
- _ ->
- exit({error,{asn1,{illegal_value,VR,Val}}})
- end.
-
-%% X.691:10.6 Encoding of a normally small non-negative whole number
-%% Use this for encoding of CHOICE index if there is an extension marker in
-%% the CHOICE
-encode_small_number({Name,Val}) when is_atom(Name) ->
- encode_small_number(Val);
-encode_small_number(Val) when Val =< 63 ->
- <<Val:7>>;
-encode_small_number(Val) ->
- [<<1:1>>,encode_semi_constrained_number(0,Val)].
-
-decode_small_number(Bytes) ->
- {Bit,Bytes2} = getbit(Bytes),
- case Bit of
- 0 ->
- getbits(Bytes2,6);
- 1 ->
- decode_semi_constrained_number(Bytes2)
- end.
-
-%% X.691:10.7 Encoding of a semi-constrained whole number
-%% might be an optimization encode_semi_constrained_number(0,Val) ->
-encode_semi_constrained_number(C,{Name,Val}) when is_atom(Name) ->
- encode_semi_constrained_number(C,Val);
-encode_semi_constrained_number({Lb,'MAX'},Val) ->
- encode_semi_constrained_number(Lb,Val);
-encode_semi_constrained_number(Lb,Val) ->
- %% encoding in minimum no of octets preceeded by a length
- Val2 = Val - Lb,
-%% NumBits = num_bits(Val2),
- Bin = eint_bin_positive(Val2),
- Size = size(Bin),
- if
- Size < 128 ->
- [<<Size>>,Bin]; % equiv with encode_length(undefined,Len) but faster
- Size < 16384 ->
- [<<2:2,Size:14>>,Bin];
- true ->
- [encode_length(undefined,Size),Bin]
- end.
-
-decode_semi_constrained_number(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {V,Bytes3} = getoctets(Bytes2,Len),
- {V,Bytes3}.
-
-encode_constrained_number(Range,{Name,Val}) when is_atom(Name) ->
- encode_constrained_number(Range,Val);
-encode_constrained_number({Lb,Ub},Val) when Val >= Lb, Ub >= Val ->
- Range = Ub - Lb + 1,
- Val2 = Val - Lb,
- NumBits = num_bits(Range),
- <<Val2:NumBits>>;
-encode_constrained_number(Range,Val) ->
- exit({error,{asn1,{integer_range,Range,value,Val}}}).
-
-
-decode_constrained_number(Buffer,{Lb,Ub}) ->
- Range = Ub - Lb + 1,
- NumBits = num_bits(Range),
- {Val,Remain} = getbits(Buffer,NumBits),
- {Val+Lb,Remain}.
-
-%% X.691:10.8 Encoding of an unconstrained whole number
-
-encode_unconstrained_number(Val) when Val >= 0 ->
- Oct = eint_bin_2Cs(Val),
- Len = size(Oct),
- if
- Len < 128 ->
- [<<Len>>,Oct]; % equiv with encode_length(undefined,Len) but faster
- Len < 16384 ->
- [<<2:2,Len:14>>,Oct];
- true ->
- [encode_length(undefined,Len),<<Len:16>>,Oct]
- end;
-encode_unconstrained_number(Val) -> % negative
- Oct = enint(Val,[]),
- Len = size(Oct),
- if
- Len < 128 ->
- [<<Len>>,Oct]; % equiv with encode_length(undefined,Len) but faster
- Len < 16384 ->
- [<<2:2,Len:14>>,Oct];
- true ->
- [encode_length(undefined,Len),Oct]
- end.
-
-
-eint_bin_2Cs(Int) ->
- case eint_bin_positive(Int) of
- Bin = <<B,_/binary>> when B > 16#7f ->
- <<0,Bin/binary>>;
- Bin -> Bin
- end.
-
-%% returns the integer as a binary
-eint_bin_positive(Val) when Val < 16#100 ->
- <<Val>>;
-eint_bin_positive(Val) when Val < 16#10000 ->
- <<Val:16>>;
-eint_bin_positive(Val) when Val < 16#1000000 ->
- <<Val:24>>;
-eint_bin_positive(Val) when Val < 16#100000000 ->
- <<Val:32>>;
-eint_bin_positive(Val) ->
- list_to_binary([eint_bin_positive2(Val bsr 32)|<<Val:32>>]).
-eint_bin_positive2(Val) when Val < 16#100 ->
- <<Val>>;
-eint_bin_positive2(Val) when Val < 16#10000 ->
- <<Val:16>>;
-eint_bin_positive2(Val) when Val < 16#1000000 ->
- <<Val:24>>;
-eint_bin_positive2(Val) when Val < 16#100000000 ->
- <<Val:32>>;
-eint_bin_positive2(Val) ->
- [eint_bin_positive2(Val bsr 32)|<<Val:32>>].
-
-
-
-
-enint(-1, [B1|T]) when B1 > 127 ->
- list_to_binary([B1|T]);
-enint(N, Acc) ->
- enint(N bsr 8, [N band 16#ff|Acc]).
-
-
-%% X.691:10.9 Encoding of a length determinant
-%%encode_small_length(undefined,Len) -> % null means no UpperBound
-%% encode_small_number(Len).
-
-%% X.691:10.9.3.5
-%% X.691:10.9.3.7
-encode_length(undefined,Len) -> % un-constrained
- if
- Len < 128 ->
- <<Len>>;
- Len < 16384 ->
- <<2:2,Len:14>>;
- true -> % should be able to endode length >= 16384
- error({error,{asn1,{encode_length,{nyi,above_16k}}}})
- end;
-
-encode_length({0,'MAX'},Len) ->
- encode_length(undefined,Len);
-encode_length(Vr={Lb,Ub},Len) when Ub =< 65535 ,Lb >= 0 -> % constrained
- encode_constrained_number(Vr,Len);
-encode_length({Lb,_Ub},Len) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
- encode_length(undefined,Len);
-encode_length({Vr={Lb,Ub},Ext},Len)
- when Ub =< 65535 ,Lb >= 0, Len=<Ub, is_list(Ext) ->
- %% constrained extensible
- [<<0:1>>,encode_constrained_number(Vr,Len)];
-encode_length({{Lb,_Ub},Ext},Len) when is_list(Ext) ->
- [<<1:1>>,encode_semi_constrained_number(Lb,Len)];
-encode_length(SingleValue,_Len) when is_integer(SingleValue) ->
- [].
-
-%% X.691 10.9.3.4 (only used for length of bitmap that prefixes extension
-%% additions in a sequence or set
-encode_small_length(Len) when Len =< 64 ->
- <<(Len-1):7>>;
-encode_small_length(Len) ->
- [<<1:1>>,encode_length(undefined,Len)].
-
-
-%% un-constrained
-decode_length(<<0:1,Oct:7,Rest/bitstring>>,undefined) ->
- {Oct,Rest};
-decode_length(<<2:2,Val:14,Rest/bitstring>>,undefined) ->
- {Val,Rest};
-decode_length(<<3:2,_:14,_Rest/bitstring>>,undefined) ->
- exit({error,{asn1,{decode_length,{nyi,above_16k}}}});
-
-decode_length(Buffer,{Lb,Ub}) when Ub =< 65535 ,Lb >= 0 -> % constrained
- decode_constrained_number(Buffer,{Lb,Ub});
-decode_length(Buffer,{Lb,_}) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
- decode_length(Buffer,undefined);
-decode_length(Buffer,{VR={_Lb,_Ub},Ext}) when is_list(Ext) ->
- {0,Buffer2} = getbit(Buffer),
- decode_length(Buffer2, VR);
-
-
-%When does this case occur with {_,_Lb,Ub} ??
-% X.691:10.9.3.5
-decode_length(Bin,{_,_Lb,_Ub}) -> %when Len =< 127 -> % Unconstrained or large Ub NOTE! this case does not cover case when Ub > 65535
- case Bin of
- <<0:1,Val:7,Rest/bitstring>> ->
- {Val,Rest};
- <<2:2,Val:14,Rest/bitstring>> ->
- {Val,Rest};
- <<3:2,_:14,_Rest/bitstring>> ->
- exit({error,{asn1,{decode_length,{nyi,length_above_64K}}}})
- end;
-decode_length(Buffer,SingleValue) when is_integer(SingleValue) ->
- {SingleValue,Buffer}.
-
-
- % X.691:11
-encode_boolean(true) ->
- <<1:1>>;
-encode_boolean(false) ->
- <<0:1>>;
-encode_boolean({Name,Val}) when is_atom(Name) ->
- encode_boolean(Val);
-encode_boolean(Val) ->
- exit({error,{asn1,{encode_boolean,Val}}}).
-
-
-%%============================================================================
-%%============================================================================
-%% Bitstring value, ITU_T X.690 Chapter 8.5
-%%============================================================================
-%%============================================================================
-
-%%============================================================================
-%% encode bitstring value
-%%============================================================================
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% bitstring NamedBitList
-%% Val can be of:
-%% - [identifiers] where only named identifers are set to one,
-%% the Constraint must then have some information of the
-%% bitlength.
-%% - [list of ones and zeroes] all bits
-%% - integer value representing the bitlist
-%% C is constraint Len, only valid when identifiers
-
-
-%% when the value is a list of {Unused,BinBits}, where
-%% Unused = integer(),
-%% BinBits = binary().
-
-encode_bit_string(C,Bin={Unused,BinBits},NamedBitList) when is_integer(Unused),
- is_binary(BinBits) ->
- encode_bin_bit_string(get_constraint(C,'SizeConstraint'),Bin,NamedBitList);
-
-encode_bit_string(C, BitListVal, NamedBitList) ->
- encode_bit_string1(get_constraint(C,'SizeConstraint'), BitListVal, NamedBitList).
-%% when the value is a list of named bits
-encode_bit_string1(C, LoNB=[FirstVal | _RestVal], NamedBitList) when is_atom(FirstVal) ->
- ToSetPos = get_all_bitposes(LoNB, NamedBitList, []),
- BitList = make_and_set_list(ToSetPos,0),
- encode_bit_string1(C,BitList,NamedBitList);
-
-encode_bit_string1(C, BL=[{bit,_No} | _RestVal], NamedBitList) ->
- ToSetPos = get_all_bitposes(BL, NamedBitList, []),
- BitList = make_and_set_list(ToSetPos,0),
- encode_bit_string1(C,BitList,NamedBitList);
-%% when the value is a list of ones and zeroes
-encode_bit_string1(Int, BitListValue, _)
- when is_list(BitListValue),is_integer(Int) ->
- %% The type is constrained by a single value size constraint
- bit_list2bitstr(Int,BitListValue);
-encode_bit_string1(no, BitListValue,[])
- when is_list(BitListValue) ->
- Len = length(BitListValue),
- [encode_length(undefined,Len),bit_list2bitstr(Len,BitListValue)];
-encode_bit_string1(C, BitListValue,[])
- when is_list(BitListValue) ->
- Len = length(BitListValue),
- [encode_length(C,Len),bit_list2bitstr(Len,BitListValue)];
-encode_bit_string1(no, BitListValue,_NamedBitList)
- when is_list(BitListValue) ->
- %% this case with an unconstrained BIT STRING can be made more efficient
- %% if the complete driver can take a special code so the length field
- %% is encoded there.
- NewBitLVal = lists:reverse(lists:dropwhile(fun(0)->true;(1)->false end,
- lists:reverse(BitListValue))),
- Len = length(NewBitLVal),
- [encode_length(undefined,Len),bit_list2bitstr(Len,NewBitLVal)];
-encode_bit_string1(C,BitListValue,_NamedBitList)
- when is_list(BitListValue) ->% C = {_,'MAX'}
- NewBitStr = bitstr_trailing_zeros(BitListValue,C),
- [encode_length(C,bit_size(NewBitStr)),NewBitStr];
-
-
-%% when the value is an integer
-encode_bit_string1(C, IntegerVal, NamedBitList) when is_integer(IntegerVal)->
- BitList = int_to_bitlist(IntegerVal),
- encode_bit_string1(C,BitList,NamedBitList);
-
-%% when the value is a tuple
-encode_bit_string1(C,{Name,Val}, NamedBitList) when is_atom(Name) ->
- encode_bit_string1(C,Val,NamedBitList).
-
-bit_list2bitstr(Len,BitListValue) ->
- case length(BitListValue) of
- Len ->
- << <<B:1>> ||B <- BitListValue>>;
- L when L > Len -> % truncate
- << << <<B:1>> ||B <- BitListValue>> :Len/bitstring>>;
- L -> % Len > L -> pad
- << << <<B:1>> ||B <- BitListValue>>/bitstring ,0:(Len-L)>>
- end.
-
-adjust_trailing_zeros(Len,Bin) when Len == bit_size(Bin) ->
- Bin;
-adjust_trailing_zeros(Len,Bin) when Len > bit_size(Bin) ->
- <<Bin/bitstring,0:(Len-bit_size(Bin))>>;
-adjust_trailing_zeros(Len,Bin) ->
- <<Bin:Len/bitstring>>.
-
-bitstr_trailing_zeros(BitList,C) when is_integer(C) ->
- bitstr_trailing_zeros1(BitList,C,C);
-bitstr_trailing_zeros(BitList,{Lb,Ub}) when is_integer(Lb) ->
- bitstr_trailing_zeros1(BitList,Lb,Ub);
-bitstr_trailing_zeros(BitList,{{Lb,Ub},_}) when is_integer(Lb) ->
- bitstr_trailing_zeros1(BitList,Lb,Ub);
-bitstr_trailing_zeros(BitList,_) ->
- bit_list2bitstr(length(BitList),BitList).
-
-bitstr_trailing_zeros1(BitList,Lb,Ub) ->
- case length(BitList) of
- Lb -> bit_list2bitstr(Lb,BitList);
- B when B<Lb -> bit_list2bitstr(Lb,BitList);
- D -> F = fun(L,LB,LB,_,_)->bit_list2bitstr(LB,lists:reverse(L));
- ([0|R],L1,LB,UB,Fun)->Fun(R,L1-1,LB,UB,Fun);
- (L,L1,_,UB,_)when L1 =< UB ->
- bit_list2bitstr(L1,lists:reverse(L));
- (_,_L1,_,_,_) ->exit({error,{list_length_BIT_STRING,
- BitList}}) end,
- F(lists:reverse(BitList),D,Lb,Ub,F)
- end.
-
-%% encode_bin_bit_string/3, when value is a tuple of Unused and BinBits.
-%% Unused = integer(),i.e. number unused bits in least sign. byte of
-%% BinBits = binary().
-encode_bin_bit_string(C,{_,BinBits},_NamedBitList)
- when is_integer(C),C=<16 ->
- adjust_trailing_zeros(C,BinBits);
-encode_bin_bit_string(C,{_Unused,BinBits},_NamedBitList)
- when is_integer(C) ->
- adjust_trailing_zeros(C,BinBits);
-encode_bin_bit_string(C,UnusedAndBin={_,_},NamedBitList) ->
- %% removes all trailing bits if NamedBitList is not empty
- BitStr = remove_trailing_bin(NamedBitList,UnusedAndBin),
- case C of
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- [encode_length({Lb,Ub},bit_size(BitStr)),BitStr];
- no ->
- [encode_length(undefined,bit_size(BitStr)),BitStr];
- Sc ->
- [encode_length(Sc,bit_size(BitStr)),BitStr]
- end.
-
-
-remove_trailing_bin([], {Unused,Bin}) ->
- BS = bit_size(Bin)-Unused,
- <<BitStr:BS/bitstring,_:Unused>> = Bin,
- BitStr;
-remove_trailing_bin(_NamedNumberList,{_Unused,<<>>}) ->
- <<>>;
-remove_trailing_bin(NamedNumberList, {_Unused,Bin}) ->
- Size = size(Bin)-1,
- <<Bfront:Size/binary, LastByte:8>> = Bin,
-
- %% clear the Unused bits to be sure
- Unused1 = trailingZeroesInNibble(LastByte band 15),
- Unused2 =
- case Unused1 of
- 4 ->
- 4 + trailingZeroesInNibble(LastByte bsr 4);
- _ -> Unused1
- end,
- case Unused2 of
- 8 ->
- remove_trailing_bin(NamedNumberList,{0,Bfront});
- _ ->
- BS = bit_size(Bin) - Unused2,
- <<BitStr:BS/bitstring,_:Unused2>> = Bin,
- BitStr
- end.
-
-trailingZeroesInNibble(0) ->
- 4;
-trailingZeroesInNibble(1) ->
- 0;
-trailingZeroesInNibble(2) ->
- 1;
-trailingZeroesInNibble(3) ->
- 0;
-trailingZeroesInNibble(4) ->
- 2;
-trailingZeroesInNibble(5) ->
- 0;
-trailingZeroesInNibble(6) ->
- 1;
-trailingZeroesInNibble(7) ->
- 0;
-trailingZeroesInNibble(8) ->
- 3;
-trailingZeroesInNibble(9) ->
- 0;
-trailingZeroesInNibble(10) ->
- 1;
-trailingZeroesInNibble(11) ->
- 0;
-trailingZeroesInNibble(12) -> %#1100
- 2;
-trailingZeroesInNibble(13) ->
- 0;
-trailingZeroesInNibble(14) ->
- 1;
-trailingZeroesInNibble(15) ->
- 0.
-
-%%%%%%%%%%%%%%%
-%% The result is presented as a list of named bits (if possible)
-%% else as a tuple {Unused,Bits}. Unused is the number of unused
-%% bits, least significant bits in the last byte of Bits. Bits is
-%% the BIT STRING represented as a binary.
-%%
-decode_compact_bit_string(Buffer, C, NamedNumberList) ->
- case get_constraint(C,'SizeConstraint') of
- 0 -> % fixed length
- {{8,0},Buffer};
- V when is_integer(V),V=<16 -> %fixed length 16 bits or less
- compact_bit_string(Buffer,V,NamedNumberList);
- V when is_integer(V),V=<65536 -> %fixed length > 16 bits
- compact_bit_string(Buffer,V,NamedNumberList);
- V when is_integer(V) -> % V > 65536 => fragmented value
- {Bin,Buffer2} = decode_fragmented_bits(Buffer,V),
- PadLen = (8 - (bit_size(Bin) rem 8)) rem 8,
- {{PadLen,<<Bin/bitstring,0:PadLen>>},Buffer2};
-%% {0,_} -> {{0,Bin},Buffer2};
-%% {U,_} -> {{8-U,Bin},Buffer2}
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- %% This case may demand decoding of fragmented length/value
- {Len,Bytes2} = decode_length(Buffer,{Lb,Ub}),
- compact_bit_string(Bytes2,Len,NamedNumberList);
- no ->
- %% This case may demand decoding of fragmented length/value
- {Len,Bytes2} = decode_length(Buffer,undefined),
- compact_bit_string(Bytes2,Len,NamedNumberList);
- Sc ->
- {Len,Bytes2} = decode_length(Buffer,Sc),
- compact_bit_string(Bytes2,Len,NamedNumberList)
- end.
-
-
-%%%%%%%%%%%%%%%
-%% The result is presented as a list of named bits (if possible)
-%% else as a list of 0 and 1.
-%%
-decode_bit_string(Buffer, C, NamedNumberList) ->
- case get_constraint(C,'SizeConstraint') of
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- {Len,Bytes2} = decode_length(Buffer,{Lb,Ub}),
- bit_list_or_named(Bytes2,Len,NamedNumberList);
- no ->
- {Len,Bytes2} = decode_length(Buffer,undefined),
- bit_list_or_named(Bytes2,Len,NamedNumberList);
- 0 -> % fixed length
- {[],Buffer}; % nothing to encode
- V when is_integer(V),V=<16 -> % fixed length 16 bits or less
- bit_list_or_named(Buffer,V,NamedNumberList);
- V when is_integer(V),V=<65536 ->
- bit_list_or_named(Buffer,V,NamedNumberList);
- V when is_integer(V) ->
- {BinBits,_} = decode_fragmented_bits(Buffer,V),
- bit_list_or_named(BinBits,V,NamedNumberList);
- Sc -> % extension marker
- {Len,Bytes2} = decode_length(Buffer,Sc),
- bit_list_or_named(Bytes2,Len,NamedNumberList)
- end.
-
-
-%% if no named bits are declared we will return a
-%% {Unused,Bits}. Unused = integer(),
-%% Bits = binary().
-compact_bit_string(Buffer,Len,[]) ->
- {BitStr,Rest} = getbits_as_binary(Len,Buffer), % {{Unused,BinBits},NewBuffer}
- PadLen = (8 - (bit_size(BitStr) rem 8)) rem 8,
- {{PadLen,<<BitStr/bitstring,0:PadLen>>},Rest};
-compact_bit_string(Buffer,Len,NamedNumberList) ->
- bit_list_or_named(Buffer,Len,NamedNumberList).
-
-
-%% if no named bits are declared we will return a
-%% BitList = [0 | 1]
-
-bit_list_or_named(Buffer,Len,[]) ->
- getbits_as_list(Len,Buffer);
-
-%% if there are named bits declared we will return a named
-%% BitList where the names are atoms and unnamed bits represented
-%% as {bit,Pos}
-%% BitList = [atom() | {bit,Pos}]
-%% Pos = integer()
-
-bit_list_or_named(Buffer,Len,NamedNumberList) ->
- {BitList,Rest} = getbits_as_list(Len,Buffer),
- {bit_list_or_named1(0,BitList,NamedNumberList,[]), Rest}.
-
-bit_list_or_named1(Pos,[0|Bt],Names,Acc) ->
- bit_list_or_named1(Pos+1,Bt,Names,Acc);
-bit_list_or_named1(Pos,[1|Bt],Names,Acc) ->
- case lists:keysearch(Pos,2,Names) of
- {value,{Name,_}} ->
- bit_list_or_named1(Pos+1,Bt,Names,[Name|Acc]);
- _ ->
- bit_list_or_named1(Pos+1,Bt,Names,[{bit,Pos}|Acc])
- end;
-bit_list_or_named1(_,[],_,Acc) ->
- lists:reverse(Acc).
-
-
-
-%%%%%%%%%%%%%%%
-%%
-
-int_to_bitlist(Int) when is_integer(Int), Int > 0 ->
- [Int band 1 | int_to_bitlist(Int bsr 1)];
-int_to_bitlist(0) ->
- [].
-
-
-%%%%%%%%%%%%%%%%%%
-%% get_all_bitposes([list of named bits to set], named_bit_db, []) ->
-%% [sorted_list_of_bitpositions_to_set]
-
-get_all_bitposes([{bit,ValPos}|Rest], NamedBitList, Ack) ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack ]);
-
-get_all_bitposes([Val | Rest], NamedBitList, Ack) ->
- case lists:keysearch(Val, 1, NamedBitList) of
- {value, {_ValName, ValPos}} ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]);
- _ ->
- exit({error,{asn1, {bitstring_namedbit, Val}}})
- end;
-get_all_bitposes([], _NamedBitList, Ack) ->
- lists:sort(Ack).
-
-%%%%%%%%%%%%%%%%%%
-%% make_and_set_list([list of positions to set to 1])->
-%% returns list with all in SetPos set.
-%% in positioning in list the first element is 0, the second 1 etc.., but
-%%
-
-make_and_set_list([XPos|SetPos], XPos) ->
- [1 | make_and_set_list(SetPos, XPos + 1)];
-make_and_set_list([Pos|SetPos], XPos) ->
- [0 | make_and_set_list([Pos | SetPos], XPos + 1)];
-make_and_set_list([], _) ->
- [].
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% X.691:16
-%% encode_octet_string(Constraint,Val)
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-encode_octet_string(C,{_Name,Val}) ->
- encode_octet_string(C,Val);
-encode_octet_string(C,Val) ->
- case get_constraint(C,'SizeConstraint') of
- 0 ->
- <<>>;
- 1 ->
- list_to_binary(Val);
- 2 ->
- list_to_binary(Val);
- {_,_}=VR ->
- try
- [encode_length(VR, length(Val)),list_to_binary(Val)]
- catch
- error:{error,{asn1,{encode_length,_}}} ->
- encode_fragmented_octet_string(Val)
- end;
- Sv when is_integer(Sv), Sv =:= length(Val) -> % fixed length
- if
- Sv =< 65535 ->
- list_to_binary(Val);
- true ->
- encode_fragmented_octet_string(Val)
- end;
- Sv when is_list(Sv) ->
- try
- [encode_length({hd(Sv),lists:max(Sv)},
- length(Val)),list_to_binary(Val)]
- catch
- error:{error,{asn1,{encode_length,_}}} ->
- encode_fragmented_octet_string(Val)
- end;
- no ->
- try
- [encode_length(undefined, length(Val)),list_to_binary(Val)]
- catch
- error:{error,{asn1,{encode_length,_}}} ->
- encode_fragmented_octet_string(Val)
- end
- end.
-
-encode_fragmented_octet_string(Val) ->
- Bin = list_to_binary(Val),
- efos_1(Bin).
-
-efos_1(<<B:16#10000/binary,T/binary>>) ->
- [<<3:2,4:6>>,B|efos_1(T)];
-efos_1(<<B:16#C000/binary,T/binary>>) ->
- [<<3:2,3:6>>,B|efos_1(T)];
-efos_1(<<B:16#8000/binary,T/binary>>) ->
- [<<3:2,2:6>>,B|efos_1(T)];
-efos_1(<<B:16#4000/binary,T/binary>>) ->
- [<<3:2,1:6>>,B|efos_1(T)];
-efos_1(<<B/bitstring>>) ->
- Len = byte_size(B),
- [encode_length(undefined, Len),B].
-
-decode_fragmented(SegSz0, Buf0, Unit) ->
- SegSz = SegSz0 * Unit * ?'16K',
- <<Res:SegSz/bitstring,Buf/bitstring>> = Buf0,
- decode_fragmented_1(Buf, Unit, Res).
-
-decode_fragmented_1(<<0:1,N:7,Buf0/bitstring>>, Unit, Res) ->
- Sz = N*Unit,
- <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
- {<<Res/bitstring,S/bitstring>>,Buf};
-decode_fragmented_1(<<1:1,0:1,N:14,Buf0/bitstring>>, Unit, Res) ->
- Sz = N*Unit,
- <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
- {<<Res/bitstring,S/bitstring>>,Buf};
-decode_fragmented_1(<<1:1,1:1,SegSz0:6,Buf0/bitstring>>, Unit, Res0) ->
- SegSz = SegSz0 * Unit * ?'16K',
- <<Frag:SegSz/bitstring,Buf/bitstring>> = Buf0,
- Res = <<Res0/bitstring,Frag/bitstring>>,
- decode_fragmented_1(Buf, Unit, Res).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Restricted char string types
-%% (NumericString, PrintableString,VisibleString,IA5String,BMPString,UniversalString)
-%% X.691:26 and X.680:34-36
-%%encode_restricted_string('BMPString',Constraints,Extension,Val)
-
-
-encode_restricted_string({Name,Val}) when is_atom(Name) ->
- encode_restricted_string(Val);
-
-encode_restricted_string(Val) when is_list(Val)->
- [encode_length(undefined,length(Val)),list_to_binary(Val)].
-
-encode_known_multiplier_string(StringType,C,{Name,Val}) when is_atom(Name) ->
- encode_known_multiplier_string(StringType,C,Val);
-
-encode_known_multiplier_string(StringType,C,Val) ->
- Result = chars_encode(C,StringType,Val),
- NumBits = get_NumBits(C,StringType),
- case get_constraint(C,'SizeConstraint') of
- Ub when is_integer(Ub), Ub*NumBits =< 16 ->
- Result;
- 0 ->
- [];
- Ub when is_integer(Ub),Ub =<65535 -> % fixed length
- Result;
- {Ub,Lb} ->
- [encode_length({Ub,Lb},length(Val)),Result];
- Vl when is_list(Vl) ->
- [encode_length({lists:min(Vl),lists:max(Vl)},length(Val)),Result];
- no ->
- [encode_length(undefined,length(Val)),Result]
- end.
-
-decode_restricted_string(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_list(Bytes2,Len).
-
-decode_known_multiplier_string(Bytes,StringType,C,_Ext) ->
- NumBits = get_NumBits(C,StringType),
- case get_constraint(C,'SizeConstraint') of
- Ub when is_integer(Ub), Ub*NumBits =< 16 ->
- chars_decode(Bytes,NumBits,StringType,C,Ub);
- Ub when is_integer(Ub),Ub =<65535 -> % fixed length
- chars_decode(Bytes,NumBits,StringType,C,Ub);
- 0 ->
- {[],Bytes};
- Vl when is_list(Vl) ->
- {Len,Bytes1} = decode_length(Bytes,{hd(Vl),lists:max(Vl)}),
- chars_decode(Bytes1,NumBits,StringType,C,Len);
- no ->
- {Len,Bytes1} = decode_length(Bytes,undefined),
- chars_decode(Bytes1,NumBits,StringType,C,Len);
- {Lb,Ub}->
- {Len,Bytes1} = decode_length(Bytes,{Lb,Ub}),
- chars_decode(Bytes1,NumBits,StringType,C,Len)
- end.
-
-
-encode_NumericString(C,Val) ->
- encode_known_multiplier_string('NumericString',C,Val).
-decode_NumericString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,'NumericString',C,false).
-
-encode_PrintableString(C,Val) ->
- encode_known_multiplier_string('PrintableString',C,Val).
-decode_PrintableString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,'PrintableString',C,false).
-
-encode_VisibleString(C,Val) -> % equivalent with ISO646String
- encode_known_multiplier_string('VisibleString',C,Val).
-decode_VisibleString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,'VisibleString',C,false).
-
-encode_IA5String(C,Val) ->
- encode_known_multiplier_string('IA5String',C,Val).
-decode_IA5String(Bytes,C) ->
- decode_known_multiplier_string(Bytes,'IA5String',C,false).
-
-encode_BMPString(C,Val) ->
- encode_known_multiplier_string('BMPString',C,Val).
-decode_BMPString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,'BMPString',C,false).
-
-encode_UniversalString(C,Val) ->
- encode_known_multiplier_string('UniversalString',C,Val).
-decode_UniversalString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,'UniversalString',C,false).
-
-
-%% end of known-multiplier strings for which PER visible constraints are
-%% applied
-
-encode_GeneralString(_C,Val) ->
- encode_restricted_string(Val).
-decode_GeneralString(Bytes,_C) ->
- decode_restricted_string(Bytes).
-
-encode_GraphicString(_C,Val) ->
- encode_restricted_string(Val).
-decode_GraphicString(Bytes,_C) ->
- decode_restricted_string(Bytes).
-
-encode_ObjectDescriptor(_C,Val) ->
- encode_restricted_string(Val).
-decode_ObjectDescriptor(Bytes) ->
- decode_restricted_string(Bytes).
-
-encode_TeletexString(_C,Val) -> % equivalent with T61String
- encode_restricted_string(Val).
-decode_TeletexString(Bytes,_C) ->
- decode_restricted_string(Bytes).
-
-encode_VideotexString(_C,Val) ->
- encode_restricted_string(Val).
-decode_VideotexString(Bytes,_C) ->
- decode_restricted_string(Bytes).
-
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% getBMPChars(Bytes,Len) ->{BMPcharList,RemainingBytes}
-%%
-getBMPChars(Bytes,1) ->
- {O1,Bytes2} = getbits(Bytes,8),
- {O2,Bytes3} = getbits(Bytes2,8),
- if
- O1 == 0 ->
- {[O2],Bytes3};
- true ->
- {[{0,0,O1,O2}],Bytes3}
- end;
-getBMPChars(Bytes,Len) ->
- getBMPChars(Bytes,Len,[]).
-
-getBMPChars(Bytes,0,Acc) ->
- {lists:reverse(Acc),Bytes};
-getBMPChars(Bytes,Len,Acc) ->
- {Octs,Bytes1} = getoctets_as_list(Bytes,2),
- case Octs of
- [0,O2] ->
- getBMPChars(Bytes1,Len-1,[O2|Acc]);
- [O1,O2]->
- getBMPChars(Bytes1,Len-1,[{0,0,O1,O2}|Acc])
- end.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% chars_encode(C,StringType,Value) -> ValueList
-%%
-%% encodes chars according to the per rules taking the constraint PermittedAlphabet
-%% into account.
-%% This function does only encode the value part and NOT the length
-
-chars_encode(C,StringType,Value) ->
- case {StringType,get_constraint(C,'PermittedAlphabet')} of
- {'UniversalString',{_,_Sv}} ->
- exit({error,{asn1,{'not implemented',"UniversalString with PermittedAlphabet constraint"}}});
- {'BMPString',{_,_Sv}} ->
- exit({error,{asn1,{'not implemented',"BMPString with PermittedAlphabet constraint"}}});
- _ ->
- {NumBits,CharOutTab} = {get_NumBits(C,StringType),get_CharOutTab(C,StringType)},
- chars_encode2(Value,NumBits,CharOutTab)
- end.
-
-chars_encode2([H|T],NumBits,{Min,Max,notab}) when H =< Max, H >= Min ->
- %%[{bits,NumBits,H-Min}|chars_encode2(T,NumBits,{Min,Max,notab})];
- [<<(H-Min):NumBits>>|chars_encode2(T,NumBits,{Min,Max,notab})];
-chars_encode2([H|T],NumBits,{Min,Max,Tab}) when H =< Max, H >= Min ->
-%% [{bits,NumBits,exit_if_false(H,element(H-Min+1,Tab))}|chars_encode2(T,NumBits,{Min,Max,Tab})];
- Ch = exit_if_false(H,element(H-Min+1,Tab)),
- [<<Ch:NumBits>>|chars_encode2(T,NumBits,{Min,Max,Tab})];
-chars_encode2([{A,B,C,D}|T],NumBits,{Min,Max,notab}) ->
- %% no value range check here (ought to be, but very expensive)
-%% [{bits,NumBits,((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min}|chars_encode2(T,NumBits,{Min,Max,notab})];
- Ch = ((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,
- [<<Ch:NumBits>>|chars_encode2(T,NumBits,{Min,Max,notab})];
-chars_encode2([{A,B,C,D}|T],NumBits,{Min,Max,Tab}) ->
- %% no value range check here (ought to be, but very expensive)
-%% [{bits,NumBits,exit_if_false({A,B,C,D},element(((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,Tab))}|chars_encode2(T,NumBits,{Min,Max,notab})];
- Ch = exit_if_false({A,B,C,D},element(((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,Tab)),
- [<<Ch:NumBits>>|chars_encode2(T,NumBits,{Min,Max,notab})];
-chars_encode2([H|_T],_,{_,_,_}) ->
- exit({error,{asn1,{illegal_char_value,H}}});
-chars_encode2([],_,_) ->
- [].
-
-exit_if_false(V,false)->
- exit({error,{asn1,{"illegal value according to Permitted alphabet constraint",V}}});
-exit_if_false(_,V) ->V.
-
-
-get_NumBits(C,StringType) ->
- case get_constraint(C,'PermittedAlphabet') of
- {'SingleValue',Sv} ->
- charbits(length(Sv));
- no ->
- case StringType of
- 'IA5String' ->
- charbits(128); % 16#00..16#7F
- 'VisibleString' ->
- charbits(95); % 16#20..16#7E
- 'PrintableString' ->
- charbits(74); % [$\s,$',$(,$),$+,$,,$-,$.,$/,"0123456789",$:,$=,$?,$A..$Z,$a..$z
- 'NumericString' ->
- charbits(11); % $ ,"0123456789"
- 'UniversalString' ->
- 32;
- 'BMPString' ->
- 16
- end
- end.
-
-get_CharOutTab(C,StringType) ->
- get_CharTab(C,StringType,out).
-
-get_CharInTab(C,StringType) ->
- get_CharTab(C,StringType,in).
-
-get_CharTab(C,StringType,InOut) ->
- case get_constraint(C,'PermittedAlphabet') of
- {'SingleValue',Sv} ->
- get_CharTab2(C,StringType,hd(Sv),lists:max(Sv),Sv,InOut);
- no ->
- case StringType of
- 'IA5String' ->
- {0,16#7F,notab};
- 'VisibleString' ->
- get_CharTab2(C,StringType,16#20,16#7F,notab,InOut);
- 'PrintableString' ->
- Chars = lists:sort(
- " '()+,-./0123456789:=?ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"),
- get_CharTab2(C,StringType,hd(Chars),lists:max(Chars),Chars,InOut);
- 'NumericString' ->
- get_CharTab2(C,StringType,16#20,$9," 0123456789",InOut);
- 'UniversalString' ->
- {0,16#FFFFFFFF,notab};
- 'BMPString' ->
- {0,16#FFFF,notab}
- end
- end.
-
-get_CharTab2(C,StringType,Min,Max,Chars,InOut) ->
- BitValMax = (1 bsl get_NumBits(C,StringType))-1,
- if
- Max =< BitValMax ->
- {0,Max,notab};
- true ->
- case InOut of
- out ->
- {Min,Max,create_char_tab(Min,Chars)};
- in ->
- {Min,Max,list_to_tuple(Chars)}
- end
- end.
-
-create_char_tab(Min,L) ->
- list_to_tuple(create_char_tab(Min,L,0)).
-create_char_tab(Min,[Min|T],V) ->
- [V|create_char_tab(Min+1,T,V+1)];
-create_char_tab(_Min,[],_V) ->
- [];
-create_char_tab(Min,L,V) ->
- [false|create_char_tab(Min+1,L,V)].
-
-%% See Table 20.3 in Dubuisson
-charbits(NumOfChars) when NumOfChars =< 2 -> 1;
-charbits(NumOfChars) when NumOfChars =< 4 -> 2;
-charbits(NumOfChars) when NumOfChars =< 8 -> 3;
-charbits(NumOfChars) when NumOfChars =< 16 -> 4;
-charbits(NumOfChars) when NumOfChars =< 32 -> 5;
-charbits(NumOfChars) when NumOfChars =< 64 -> 6;
-charbits(NumOfChars) when NumOfChars =< 128 -> 7;
-charbits(NumOfChars) when NumOfChars =< 256 -> 8;
-charbits(NumOfChars) when NumOfChars =< 512 -> 9;
-charbits(NumOfChars) when NumOfChars =< 1024 -> 10;
-charbits(NumOfChars) when NumOfChars =< 2048 -> 11;
-charbits(NumOfChars) when NumOfChars =< 4096 -> 12;
-charbits(NumOfChars) when NumOfChars =< 8192 -> 13;
-charbits(NumOfChars) when NumOfChars =< 16384 -> 14;
-charbits(NumOfChars) when NumOfChars =< 32768 -> 15;
-charbits(NumOfChars) when NumOfChars =< 65536 -> 16;
-charbits(NumOfChars) when is_integer(NumOfChars) ->
- 16 + charbits1(NumOfChars bsr 16).
-
-charbits1(0) ->
- 0;
-charbits1(NumOfChars) ->
- 1 + charbits1(NumOfChars bsr 1).
-
-
-chars_decode(Bytes,_,'BMPString',C,Len) ->
- case get_constraint(C,'PermittedAlphabet') of
- no ->
- getBMPChars(Bytes,Len);
- _ ->
- exit({error,{asn1,
- {'not implemented',
- "BMPString with PermittedAlphabet constraint"}}})
- end;
-chars_decode(Bytes,NumBits,StringType,C,Len) ->
- CharInTab = get_CharInTab(C,StringType),
- chars_decode2(Bytes,CharInTab,NumBits,Len).
-
-
-chars_decode2(Bytes,CharInTab,NumBits,Len) ->
- chars_decode2(Bytes,CharInTab,NumBits,Len,[]).
-
-chars_decode2(Bytes,_CharInTab,_NumBits,0,Acc) ->
- {lists:reverse(Acc),Bytes};
-chars_decode2(Bytes,{Min,Max,notab},NumBits,Len,Acc) when NumBits > 8 ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- Result =
- if
- Char < 256 -> Char;
- true ->
- list_to_tuple(binary_to_list(<<Char:32>>))
- end,
- chars_decode2(Bytes2,{Min,Max,notab},NumBits,Len -1,[Result|Acc]);
-chars_decode2(Bytes,{Min,Max,notab},NumBits,Len,Acc) ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- chars_decode2(Bytes2,{Min,Max,notab},NumBits,Len -1,[Char+Min|Acc]);
-
-%% BMPString and UniversalString with PermittedAlphabet is currently not supported
-chars_decode2(Bytes,{Min,Max,CharInTab},NumBits,Len,Acc) ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- chars_decode2(Bytes2,{Min,Max,CharInTab},NumBits,Len -1,[element(Char+1,CharInTab)|Acc]).
-
-
-%% UTF8String
-encode_UTF8String(Val) when is_binary(Val) ->
- [encode_length(undefined,size(Val)),Val];
-encode_UTF8String(Val) ->
- Bin = list_to_binary(Val),
- encode_UTF8String(Bin).
-
-decode_UTF8String(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_bin(Bytes2,Len).
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_object_identifier(Val) -> CompleteList
-%% encode_object_identifier({Name,Val}) -> CompleteList
-%% Val -> {Int1,Int2,...,IntN} % N >= 2
-%% Name -> atom()
-%% Int1 -> integer(0..2)
-%% Int2 -> integer(0..39) when Int1 (0..1) else integer()
-%% Int3-N -> integer()
-%% CompleteList -> [binary()|bitstring()|list()]
-%%
-encode_object_identifier({Name,Val}) when is_atom(Name) ->
- encode_object_identifier(Val);
-encode_object_identifier(Val) ->
- OctetList = e_object_identifier(Val),
- Octets = list_to_binary(OctetList), % performs a flatten at the same time
- [encode_length(undefined,size(Octets)),Octets].
-
-%% This code is copied from asn1_encode.erl (BER) and corrected and modified
-
-e_object_identifier({'OBJECT IDENTIFIER',V}) ->
- e_object_identifier(V);
-e_object_identifier({Cname,V}) when is_atom(Cname),is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-e_object_identifier({Cname,V}) when is_atom(Cname),is_list(V) ->
- e_object_identifier(V);
-e_object_identifier(V) when is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-
-%% E1 = 0|1|2 and (E2 < 40 when E1 = 0|1)
-e_object_identifier([E1,E2|Tail]) when E1 >= 0, E1 < 2, E2 < 40 ; E1==2 ->
- Head = 40*E1 + E2, % weird
- e_object_elements([Head|Tail],[]);
-e_object_identifier(Oid=[_,_|_Tail]) ->
- exit({error,{asn1,{'illegal_value',Oid}}}).
-
-e_object_elements([],Acc) ->
- lists:reverse(Acc);
-e_object_elements([H|T],Acc) ->
- e_object_elements(T,[e_object_element(H)|Acc]).
-
-e_object_element(Num) when Num < 128 ->
- [Num];
-e_object_element(Num) ->
- [e_o_e(Num bsr 7)|[Num band 2#1111111]].
-e_o_e(Num) when Num < 128 ->
- Num bor 2#10000000;
-e_o_e(Num) ->
- [e_o_e(Num bsr 7)|[(Num band 2#1111111) bor 2#10000000]].
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_object_identifier(Bytes) -> {ObjId,RemainingBytes}
-%% ObjId -> {integer(),integer(),...} % at least 2 integers
-%% RemainingBytes -> [integer()] when integer() (0..255)
-decode_object_identifier(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Octs,Bytes3} = getoctets_as_list(Bytes2,Len),
- [First|Rest] = dec_subidentifiers(Octs,0,[]),
- Idlist = if
- First < 40 ->
- [0,First|Rest];
- First < 80 ->
- [1,First - 40|Rest];
- true ->
- [2,First - 80|Rest]
- end,
- {list_to_tuple(Idlist),Bytes3}.
-
-dec_subidentifiers([H|T],Av,Al) when H >=16#80 ->
- dec_subidentifiers(T,(Av bsl 7) + (H band 16#7F),Al);
-dec_subidentifiers([H|T],Av,Al) ->
- dec_subidentifiers(T,0,[(Av bsl 7) + H |Al]);
-dec_subidentifiers([],_Av,Al) ->
- lists:reverse(Al).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_relative_oid(Val) -> CompleteList
-%% encode_relative_oid({Name,Val}) -> CompleteList
-encode_relative_oid({Name,Val}) when is_atom(Name) ->
- encode_relative_oid(Val);
-encode_relative_oid(Val) when is_tuple(Val) ->
- encode_relative_oid(tuple_to_list(Val));
-encode_relative_oid(Val) when is_list(Val) ->
- Octets = list_to_binary([e_object_element(X)||X <- Val]),
- [encode_length(undefined,size(Octets)),Octets].
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_relative_oid(Val) -> CompleteList
-%% decode_relative_oid({Name,Val}) -> CompleteList
-decode_relative_oid(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Octs,Bytes3} = getoctets_as_list(Bytes2,Len),
- ObjVals = dec_subidentifiers(Octs,0,[]),
- {list_to_tuple(ObjVals),Bytes3}.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_real(Val) -> CompleteList
-%% encode_real({Name,Val}) -> CompleteList
-encode_real({Name,Val}) when is_atom(Name) ->
- encode_real(Val);
-encode_real(Real) ->
- {EncVal,Len} = ?RT_COMMON:encode_real([],Real),
- [encode_length(undefined,Len),EncVal].
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_real(Val) -> {REALvalue,Rest}
-%% decode_real({Name,Val}) -> {REALvalue,Rest}
-decode_real(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- <<Bytes3:Len/binary,Rest/bitstring>> = Bytes2,
- {RealVal,Rest,Len} = ?RT_COMMON:decode_real(Bytes3,Len),
- {RealVal,Rest}.
-
-
-get_constraint([{Key,V}],Key) ->
- V;
-get_constraint([],_Key) ->
- no;
-get_constraint(C,Key) ->
- case lists:keysearch(Key,1,C) of
- false ->
- no;
- {value,{_,V}} ->
- V
- end.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% complete(InList) -> ByteList
-%% Takes a coded list with bits and bytes and converts it to a list of bytes
-%% Should be applied as the last step at encode of a complete ASN.1 type
-%%
-complete(InList) when is_list(InList) ->
- case complete1(InList) of
- <<>> ->
- <<0>>;
- Res ->
- case bit_size(Res) band 7 of
- 0 -> Res;
- Bits -> <<Res/bitstring,0:(8-Bits)>>
- end
- end;
-complete(InList) when is_binary(InList) ->
- InList;
-complete(InList) when is_bitstring(InList) ->
- PadLen = 8 - (bit_size(InList) band 7),
- <<InList/bitstring,0:PadLen>>.
-
-complete1(L) when is_list(L) ->
- list_to_bitstring(L).
-
-%% Special version of complete that does not align the completed message.
-complete_NFP(InList) when is_list(InList) ->
- list_to_bitstring(InList);
-complete_NFP(InList) when is_bitstring(InList) ->
- InList.
-
-%% unaligned helpers
-
-%% 10.5.6 NOTE: If "range" satisfies the inequality 2^m < "range" =<
-%% 2^(m+1) then the number of bits = m + 1
-
-num_bits(N) ->
- num_bits(N,1,0).
-num_bits(N,T,B) when N=<T->B;
-num_bits(N,T,B) ->num_bits(N,T bsl 1, B+1).
diff --git a/lib/asn1/src/asn1rtt_ber.erl b/lib/asn1/src/asn1rtt_ber.erl
new file mode 100644
index 0000000000..889a421e4f
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_ber.erl
@@ -0,0 +1,1561 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(asn1rtt_ber).
+
+%% encoding / decoding of BER
+
+-export([ber_decode_nif/1,ber_decode_erlang/1,match_tags/2,ber_encode/1]).
+-export([encode_tags/2,
+ encode_tags/3,
+ skip_ExtensionAdditions/2]).
+-export([encode_boolean/2,decode_boolean/2,
+ encode_integer/2,encode_integer/3,
+ decode_integer/3,decode_integer/4,
+ encode_enumerated/2,decode_enumerated/3,
+ encode_bit_string/4,
+ decode_named_bit_string/3,
+ decode_compact_bit_string/3,
+ decode_legacy_bit_string/3,
+ decode_native_bit_string/3,
+ encode_null/2,decode_null/2,
+ encode_relative_oid/2,decode_relative_oid/2,
+ encode_object_identifier/2,decode_object_identifier/2,
+ encode_restricted_string/2,
+ decode_restricted_string/2,decode_restricted_string/3,
+ encode_universal_string/2,decode_universal_string/3,
+ encode_UTF8_string/2,decode_UTF8_string/2,
+ encode_BMP_string/2,decode_BMP_string/3,
+ encode_generalized_time/2,decode_generalized_time/3,
+ encode_utc_time/2,decode_utc_time/3]).
+
+-export([encode_open_type/2,decode_open_type/2,
+ decode_open_type_as_binary/2]).
+
+-export([decode_primitive_incomplete/2,decode_selective/2]).
+
+%% For DER.
+-export([dynamicsort_SET_components/1,dynamicsort_SETOF/1]).
+
+%% the encoding of class of tag bits 8 and 7
+-define(UNIVERSAL, 0).
+-define(APPLICATION, 16#40).
+-define(CONTEXT, 16#80).
+-define(PRIVATE, 16#C0).
+
+%%% primitive or constructed encoding % bit 6
+-define(PRIMITIVE, 0).
+-define(CONSTRUCTED, 2#00100000).
+
+%%% The tag-number for universal types
+-define(N_BOOLEAN, 1).
+-define(N_INTEGER, 2).
+-define(N_BIT_STRING, 3).
+-define(N_OCTET_STRING, 4).
+-define(N_NULL, 5).
+-define(N_OBJECT_IDENTIFIER, 6).
+-define(N_OBJECT_DESCRIPTOR, 7).
+-define(N_EXTERNAL, 8).
+-define(N_REAL, 9).
+-define(N_ENUMERATED, 10).
+-define(N_EMBEDDED_PDV, 11).
+-define(N_SEQUENCE, 16).
+-define(N_SET, 17).
+-define(N_NumericString, 18).
+-define(N_PrintableString, 19).
+-define(N_TeletexString, 20).
+-define(N_VideotexString, 21).
+-define(N_IA5String, 22).
+-define(N_UTCTime, 23).
+-define(N_GeneralizedTime, 24).
+-define(N_GraphicString, 25).
+-define(N_VisibleString, 26).
+-define(N_GeneralString, 27).
+-define(N_UniversalString, 28).
+-define(N_BMPString, 30).
+
+
+% the complete tag-word of built-in types
+-define(T_BOOLEAN, ?UNIVERSAL bor ?PRIMITIVE bor 1).
+-define(T_INTEGER, ?UNIVERSAL bor ?PRIMITIVE bor 2).
+-define(T_BIT_STRING, ?UNIVERSAL bor ?PRIMITIVE bor 3). % can be CONSTRUCTED
+-define(T_OCTET_STRING, ?UNIVERSAL bor ?PRIMITIVE bor 4). % can be CONSTRUCTED
+-define(T_NULL, ?UNIVERSAL bor ?PRIMITIVE bor 5).
+-define(T_OBJECT_IDENTIFIER,?UNIVERSAL bor ?PRIMITIVE bor 6).
+-define(T_OBJECT_DESCRIPTOR,?UNIVERSAL bor ?PRIMITIVE bor 7).
+-define(T_EXTERNAL, ?UNIVERSAL bor ?PRIMITIVE bor 8).
+-define(T_REAL, ?UNIVERSAL bor ?PRIMITIVE bor 9).
+-define(T_ENUMERATED, ?UNIVERSAL bor ?PRIMITIVE bor 10).
+-define(T_EMBEDDED_PDV, ?UNIVERSAL bor ?PRIMITIVE bor 11).
+-define(T_SEQUENCE, ?UNIVERSAL bor ?CONSTRUCTED bor 16).
+-define(T_SET, ?UNIVERSAL bor ?CONSTRUCTED bor 17).
+-define(T_NumericString, ?UNIVERSAL bor ?PRIMITIVE bor 18). %can be constructed
+-define(T_PrintableString, ?UNIVERSAL bor ?PRIMITIVE bor 19). %can be constructed
+-define(T_TeletexString, ?UNIVERSAL bor ?PRIMITIVE bor 20). %can be constructed
+-define(T_VideotexString, ?UNIVERSAL bor ?PRIMITIVE bor 21). %can be constructed
+-define(T_IA5String, ?UNIVERSAL bor ?PRIMITIVE bor 22). %can be constructed
+-define(T_UTCTime, ?UNIVERSAL bor ?PRIMITIVE bor 23).
+-define(T_GeneralizedTime, ?UNIVERSAL bor ?PRIMITIVE bor 24).
+-define(T_GraphicString, ?UNIVERSAL bor ?PRIMITIVE bor 25). %can be constructed
+-define(T_VisibleString, ?UNIVERSAL bor ?PRIMITIVE bor 26). %can be constructed
+-define(T_GeneralString, ?UNIVERSAL bor ?PRIMITIVE bor 27). %can be constructed
+-define(T_UniversalString, ?UNIVERSAL bor ?PRIMITIVE bor 28). %can be constructed
+-define(T_BMPString, ?UNIVERSAL bor ?PRIMITIVE bor 30). %can be constructed
+
+ber_encode([Tlv]) ->
+ ber_encode(Tlv);
+ber_encode(Tlv) when is_binary(Tlv) ->
+ Tlv;
+ber_encode(Tlv) ->
+ asn1rt_nif:encode_ber_tlv(Tlv).
+
+ber_decode_nif(B) ->
+ asn1rt_nif:decode_ber_tlv(B).
+
+ber_decode_erlang(B) when is_binary(B) ->
+ decode_primitive(B);
+ber_decode_erlang(Tlv) ->
+ {Tlv,<<>>}.
+
+decode_primitive(Bin) ->
+ {Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
+ case Form of
+ 1 -> % constructed
+ {{TagNo,decode_constructed(V)},Rest};
+ 0 -> % primitive
+ {{TagNo,V},Rest};
+ 2 -> % constructed indefinite
+ {Vlist,Rest2} = decode_constructed_indefinite(V,[]),
+ {{TagNo,Vlist},Rest2}
+ end.
+
+decode_constructed(Bin) when byte_size(Bin) =:= 0 ->
+ [];
+decode_constructed(Bin) ->
+ {Tlv,Rest} = decode_primitive(Bin),
+ [Tlv|decode_constructed(Rest)].
+
+decode_constructed_indefinite(<<0,0,Rest/binary>>,Acc) ->
+ {lists:reverse(Acc),Rest};
+decode_constructed_indefinite(Bin,Acc) ->
+ {Tlv,Rest} = decode_primitive(Bin),
+ decode_constructed_indefinite(Rest, [Tlv|Acc]).
+
+%% decode_primitive_incomplete/2 decodes an encoded message incomplete
+%% by help of the pattern attribute (first argument).
+decode_primitive_incomplete([[default,TagNo]],Bin) -> %default
+ case decode_tag_and_length(Bin) of
+ {Form,TagNo,V,Rest} ->
+ decode_incomplete2(Form,TagNo,V,[],Rest);
+ _ ->
+ %{asn1_DEFAULT,Bin}
+ asn1_NOVALUE
+ end;
+decode_primitive_incomplete([[default,TagNo,Directives]],Bin) -> %default, constructed type, Directives points into this type
+ case decode_tag_and_length(Bin) of
+ {Form,TagNo,V,Rest} ->
+ decode_incomplete2(Form,TagNo,V,Directives,Rest);
+ _ ->
+ %{asn1_DEFAULT,Bin}
+ asn1_NOVALUE
+ end;
+decode_primitive_incomplete([[opt,TagNo]],Bin) -> %optional
+ case decode_tag_and_length(Bin) of
+ {Form,TagNo,V,Rest} ->
+ decode_incomplete2(Form,TagNo,V,[],Rest);
+ _ ->
+ %{{TagNo,asn1_NOVALUE},Bin}
+ asn1_NOVALUE
+ end;
+decode_primitive_incomplete([[opt,TagNo,Directives]],Bin) -> %optional
+ case decode_tag_and_length(Bin) of
+ {Form,TagNo,V,Rest} ->
+ decode_incomplete2(Form,TagNo,V,Directives,Rest);
+ _ ->
+ %{{TagNo,asn1_NOVALUE},Bin}
+ asn1_NOVALUE
+ end;
+%% An optional that shall be undecoded
+decode_primitive_incomplete([[opt_undec,Tag]],Bin) ->
+ case decode_tag_and_length(Bin) of
+ {_,Tag,_,_} ->
+ decode_incomplete_bin(Bin);
+ _ ->
+ asn1_NOVALUE
+ end;
+%% A choice alternative that shall be undecoded
+decode_primitive_incomplete([[alt_undec,TagNo]|RestAlts],Bin) ->
+ case decode_tag_and_length(Bin) of
+ {_,TagNo,_,_} ->
+ decode_incomplete_bin(Bin);
+ _ ->
+ decode_primitive_incomplete(RestAlts,Bin)
+ end;
+decode_primitive_incomplete([[alt,TagNo]|RestAlts],Bin) ->
+ case decode_tag_and_length(Bin) of
+ {_Form,TagNo,V,Rest} ->
+ {{TagNo,V},Rest};
+ _ ->
+ decode_primitive_incomplete(RestAlts,Bin)
+ end;
+decode_primitive_incomplete([[alt,TagNo,Directives]|RestAlts],Bin) ->
+ case decode_tag_and_length(Bin) of
+ {Form,TagNo,V,Rest} ->
+ decode_incomplete2(Form,TagNo,V,Directives,Rest);
+ _ ->
+ decode_primitive_incomplete(RestAlts,Bin)
+ end;
+decode_primitive_incomplete([[alt_parts,TagNo]],Bin) ->
+ case decode_tag_and_length(Bin) of
+ {_Form,TagNo,V,Rest} ->
+ {{TagNo,V},Rest};
+ _ ->
+ asn1_NOVALUE
+ end;
+decode_primitive_incomplete([[alt_parts,TagNo]|RestAlts],Bin) ->
+ case decode_tag_and_length(Bin) of
+ {_Form,TagNo,V,Rest} ->
+ {{TagNo,decode_parts_incomplete(V)},Rest};
+ _ ->
+ decode_primitive_incomplete(RestAlts,Bin)
+ end;
+decode_primitive_incomplete([[undec,_TagNo]|_RestTag],Bin) -> %incomlete decode
+ decode_incomplete_bin(Bin);
+decode_primitive_incomplete([[parts,TagNo]|_RestTag],Bin) ->
+ case decode_tag_and_length(Bin) of
+ {_Form,TagNo,V,Rest} ->
+ {{TagNo,decode_parts_incomplete(V)},Rest};
+ Err ->
+ {error,{asn1,"tag failure",TagNo,Err}}
+ end;
+decode_primitive_incomplete([mandatory|RestTag],Bin) ->
+ {Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
+ decode_incomplete2(Form,TagNo,V,RestTag,Rest);
+%% A choice that is a toptype or a mandatory component of a
+%% SEQUENCE or SET.
+decode_primitive_incomplete([[mandatory|Directives]],Bin) ->
+ {Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
+ decode_incomplete2(Form,TagNo,V,Directives,Rest);
+decode_primitive_incomplete([],Bin) ->
+ decode_primitive(Bin).
+
+%% decode_parts_incomplete/1 receives a number of values encoded in
+%% sequence and returns the parts as unencoded binaries
+decode_parts_incomplete(<<>>) ->
+ [];
+decode_parts_incomplete(Bin) ->
+ {ok,Rest} = skip_tag(Bin),
+ {ok,Rest2} = skip_length_and_value(Rest),
+ LenPart = byte_size(Bin) - byte_size(Rest2),
+ <<Part:LenPart/binary,RestBin/binary>> = Bin,
+ [Part|decode_parts_incomplete(RestBin)].
+
+
+%% decode_incomplete2 checks if V is a value of a constructed or
+%% primitive type, and continues the decode propeerly.
+decode_incomplete2(_Form=2,TagNo,V,TagMatch,_) ->
+ %% constructed indefinite length
+ {Vlist,Rest2} = decode_constr_indef_incomplete(TagMatch,V,[]),
+ {{TagNo,Vlist},Rest2};
+decode_incomplete2(1,TagNo,V,[TagMatch],Rest) when is_list(TagMatch) ->
+ {{TagNo,decode_constructed_incomplete(TagMatch,V)},Rest};
+decode_incomplete2(1,TagNo,V,TagMatch,Rest) ->
+ {{TagNo,decode_constructed_incomplete(TagMatch,V)},Rest};
+decode_incomplete2(0,TagNo,V,_TagMatch,Rest) ->
+ {{TagNo,V},Rest}.
+
+decode_constructed_incomplete([Tags=[Ts]],Bin) when is_list(Ts) ->
+ decode_constructed_incomplete(Tags,Bin);
+decode_constructed_incomplete(_TagMatch,<<>>) ->
+ [];
+decode_constructed_incomplete([mandatory|RestTag],Bin) ->
+ {Tlv,Rest} = decode_primitive(Bin),
+ [Tlv|decode_constructed_incomplete(RestTag,Rest)];
+decode_constructed_incomplete(Directives=[[Alt,_]|_],Bin)
+ when Alt =:= alt_undec; Alt =:= alt; Alt =:= alt_parts ->
+ {_Form,TagNo,V,Rest} = decode_tag_and_length(Bin),
+ case incomplete_choice_alt(TagNo, Directives) of
+ {alt_undec,_} ->
+ LenA = byte_size(Bin) - byte_size(Rest),
+ <<A:LenA/binary,Rest/binary>> = Bin,
+ A;
+ {alt,InnerDirectives} ->
+ {Tlv,Rest} = decode_primitive_incomplete(InnerDirectives,V),
+ {TagNo,Tlv};
+ {alt_parts,_} ->
+ [{TagNo,decode_parts_incomplete(V)}];
+ no_match -> %% if a choice alternative was encoded that
+ %% was not specified in the config file,
+ %% thus decode component anonomous.
+ {Tlv,_}=decode_primitive(Bin),
+ Tlv
+ end;
+decode_constructed_incomplete([TagNo|RestTag],Bin) ->
+ case decode_primitive_incomplete([TagNo],Bin) of
+ {Tlv,Rest} ->
+ [Tlv|decode_constructed_incomplete(RestTag,Rest)];
+ asn1_NOVALUE ->
+ decode_constructed_incomplete(RestTag,Bin)
+ end;
+decode_constructed_incomplete([],Bin) ->
+ {Tlv,Rest}=decode_primitive(Bin),
+ [Tlv|decode_constructed_incomplete([],Rest)].
+
+decode_constr_indef_incomplete(_TagMatch,<<0,0,Rest/binary>>,Acc) ->
+ {lists:reverse(Acc),Rest};
+decode_constr_indef_incomplete([Tag|RestTags],Bin,Acc) ->
+ case decode_primitive_incomplete([Tag],Bin) of
+ {Tlv,Rest} ->
+ decode_constr_indef_incomplete(RestTags,Rest,[Tlv|Acc]);
+ asn1_NOVALUE ->
+ decode_constr_indef_incomplete(RestTags,Bin,Acc)
+ end.
+
+
+decode_incomplete_bin(Bin) ->
+ {ok,Rest} = skip_tag(Bin),
+ {ok,Rest2} = skip_length_and_value(Rest),
+ IncLen = byte_size(Bin) - byte_size(Rest2),
+ <<IncBin:IncLen/binary,Ret/binary>> = Bin,
+ {IncBin,Ret}.
+
+incomplete_choice_alt(TagNo,[[Alt,TagNo]|Directives]) ->
+ {Alt,Directives};
+incomplete_choice_alt(TagNo,[D]) when is_list(D) ->
+ incomplete_choice_alt(TagNo,D);
+incomplete_choice_alt(TagNo,[_H|Directives]) ->
+ incomplete_choice_alt(TagNo,Directives);
+incomplete_choice_alt(_,[]) ->
+ no_match.
+
+
+%% decode_selective(Pattern, Binary) the first argument is a pattern that tells
+%% what to do with the next element the second is the BER encoded
+%% message as a binary
+%% Returns {ok,Value} or {error,Reason}
+%% Value is a binary that in turn must be decoded to get the decoded
+%% value.
+decode_selective([],Binary) ->
+ {ok,Binary};
+decode_selective([skip|RestPattern],Binary)->
+ {ok,RestBinary}=skip_tag(Binary),
+ {ok,RestBinary2}=skip_length_and_value(RestBinary),
+ decode_selective(RestPattern,RestBinary2);
+decode_selective([[skip_optional,Tag]|RestPattern],Binary) ->
+ case skip_optional_tag(Tag,Binary) of
+ {ok,RestBinary} ->
+ {ok,RestBinary2}=skip_length_and_value(RestBinary),
+ decode_selective(RestPattern,RestBinary2);
+ missing ->
+ decode_selective(RestPattern,Binary)
+ end;
+decode_selective([[choosen,Tag]],Binary) ->
+ return_value(Tag,Binary);
+decode_selective([[choosen,Tag]|RestPattern],Binary) ->
+ case skip_optional_tag(Tag,Binary) of
+ {ok,RestBinary} ->
+ {ok,Value} = get_value(RestBinary),
+ decode_selective(RestPattern,Value);
+ missing ->
+ {ok,<<>>}
+ end;
+decode_selective(P,_) ->
+ {error,{asn1,{partial_decode,"bad pattern",P}}}.
+
+return_value(Tag,Binary) ->
+ {ok,{Tag,RestBinary}}=get_tag(Binary),
+ {ok,{LenVal,_RestBinary2}} = get_length_and_value(RestBinary),
+ {ok,<<Tag/binary,LenVal/binary>>}.
+
+
+%% skip_tag and skip_length_and_value are rutines used both by
+%% decode_partial_incomplete and decode_selective (decode/2).
+
+skip_tag(<<_:3,31:5,Rest/binary>>)->
+ skip_long_tag(Rest);
+skip_tag(<<_:3,_Tag:5,Rest/binary>>) ->
+ {ok,Rest}.
+
+skip_long_tag(<<1:1,_:7,Rest/binary>>) ->
+ skip_long_tag(Rest);
+skip_long_tag(<<0:1,_:7,Rest/binary>>) ->
+ {ok,Rest}.
+
+skip_optional_tag(<<>>,Binary) ->
+ {ok,Binary};
+skip_optional_tag(<<Tag,RestTag/binary>>,<<Tag,Rest/binary>>) ->
+ skip_optional_tag(RestTag,Rest);
+skip_optional_tag(_,_) ->
+ missing.
+
+
+skip_length_and_value(Binary) ->
+ case decode_length(Binary) of
+ {indefinite,RestBinary} ->
+ skip_indefinite_value(RestBinary);
+ {Length,RestBinary} ->
+ <<_:Length/unit:8,Rest/binary>> = RestBinary,
+ {ok,Rest}
+ end.
+
+skip_indefinite_value(<<0,0,Rest/binary>>) ->
+ {ok,Rest};
+skip_indefinite_value(Binary) ->
+ {ok,RestBinary}=skip_tag(Binary),
+ {ok,RestBinary2} = skip_length_and_value(RestBinary),
+ skip_indefinite_value(RestBinary2).
+
+get_value(Binary) ->
+ case decode_length(Binary) of
+ {indefinite,RestBinary} ->
+ get_indefinite_value(RestBinary,[]);
+ {Length,RestBinary} ->
+ <<Value:Length/binary,_Rest/binary>> = RestBinary,
+ {ok,Value}
+ end.
+
+get_indefinite_value(<<0,0,_Rest/binary>>,Acc) ->
+ {ok,list_to_binary(lists:reverse(Acc))};
+get_indefinite_value(Binary,Acc) ->
+ {ok,{Tag,RestBinary}}=get_tag(Binary),
+ {ok,{LenVal,RestBinary2}} = get_length_and_value(RestBinary),
+ get_indefinite_value(RestBinary2,[LenVal,Tag|Acc]).
+
+get_tag(<<H:1/binary,Rest/binary>>) ->
+ case H of
+ <<_:3,31:5>> ->
+ get_long_tag(Rest,[H]);
+ _ -> {ok,{H,Rest}}
+ end.
+get_long_tag(<<H:1/binary,Rest/binary>>,Acc) ->
+ case H of
+ <<0:1,_:7>> ->
+ {ok,{list_to_binary(lists:reverse([H|Acc])),Rest}};
+ _ ->
+ get_long_tag(Rest,[H|Acc])
+ end.
+
+get_length_and_value(Bin = <<0:1,Length:7,_T/binary>>) ->
+ <<Len,Val:Length/binary,Rest/binary>> = Bin,
+ {ok,{<<Len,Val/binary>>, Rest}};
+get_length_and_value(Bin = <<1:1,0:7,_T/binary>>) ->
+ get_indefinite_length_and_value(Bin);
+get_length_and_value(<<1:1,LL:7,T/binary>>) ->
+ <<Length:LL/unit:8,Rest/binary>> = T,
+ <<Value:Length/binary,Rest2/binary>> = Rest,
+ {ok,{<<1:1,LL:7,Length:LL/unit:8,Value/binary>>,Rest2}}.
+
+get_indefinite_length_and_value(<<H,T/binary>>) ->
+ get_indefinite_length_and_value(T,[H]).
+
+get_indefinite_length_and_value(<<0,0,Rest/binary>>,Acc) ->
+ {ok,{list_to_binary(lists:reverse(Acc)),Rest}};
+get_indefinite_length_and_value(Binary,Acc) ->
+ {ok,{Tag,RestBinary}}=get_tag(Binary),
+ {ok,{LenVal,RestBinary2}}=get_length_and_value(RestBinary),
+ get_indefinite_length_and_value(RestBinary2,[LenVal,Tag|Acc]).
+
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% match_tags takes a Tlv (Tag, Length, Value) structure and matches
+%% it with the tags in TagList. If the tags does not match the function
+%% crashes otherwise it returns the remaining Tlv after that the tags have
+%% been removed.
+%%
+%% match_tags(Tlv, TagList)
+%%
+
+match_tags({T,V}, [T]) ->
+ V;
+match_tags({T,V}, [T|Tt]) ->
+ match_tags(V,Tt);
+match_tags([{T,V}], [T|Tt]) ->
+ match_tags(V, Tt);
+match_tags([{T,_V}|_]=Vlist, [T]) ->
+ Vlist;
+match_tags(Tlv, []) ->
+ Tlv;
+match_tags({Tag,_V}=Tlv, [T|_Tt]) ->
+ exit({error,{asn1,{wrong_tag,{{expected,T},{got,Tag,Tlv}}}}}).
+
+%%%
+%% skips components that do not match a tag in Tags
+skip_ExtensionAdditions([], _Tags) ->
+ [];
+skip_ExtensionAdditions([{Tag,_}|Rest]=TLV, Tags) ->
+ case [X || X=T <- Tags, T =:= Tag] of
+ [] ->
+ %% skip this TLV and continue with next
+ skip_ExtensionAdditions(Rest,Tags);
+ _ ->
+ TLV
+ end.
+
+
+%%===============================================================================
+%% Decode a tag
+%%
+%% decode_tag(OctetListBuffer) -> {{Form, (Class bsl 16)+ TagNo}, RestOfBuffer, RemovedBytes}
+%%===============================================================================
+
+decode_tag_and_length(<<Class:2, Form:1, TagNo:5, 0:1, Length:7, V:Length/binary, RestBuffer/binary>>) when TagNo < 31 ->
+ {Form, (Class bsl 16) bor TagNo, V, RestBuffer};
+decode_tag_and_length(<<Class:2, 1:1, TagNo:5, 1:1, 0:7, T/binary>>) when TagNo < 31 ->
+ {2, (Class bsl 16) + TagNo, T, <<>>};
+decode_tag_and_length(<<Class:2, Form:1, TagNo:5, 1:1, LL:7, Length:LL/unit:8,V:Length/binary, T/binary>>) when TagNo < 31 ->
+ {Form, (Class bsl 16) bor TagNo, V, T};
+decode_tag_and_length(<<Class:2, Form:1, 31:5, 0:1, TagNo:7, 0:1, Length:7, V:Length/binary, RestBuffer/binary>>) ->
+ {Form, (Class bsl 16) bor TagNo, V, RestBuffer};
+decode_tag_and_length(<<Class:2, 1:1, 31:5, 0:1, TagNo:7, 1:1, 0:7, T/binary>>) ->
+ {2, (Class bsl 16) bor TagNo, T, <<>>};
+decode_tag_and_length(<<Class:2, Form:1, 31:5, 0:1, TagNo:7, 1:1, LL:7, Length:LL/unit:8, V:Length/binary, T/binary>>) ->
+ {Form, (Class bsl 16) bor TagNo, V, T};
+decode_tag_and_length(<<Class:2, Form:1, 31:5, 1:1, TagPart1:7, 0:1, TagPartLast, Buffer/binary>>) ->
+ TagNo = (TagPart1 bsl 7) bor TagPartLast,
+ {Length, RestBuffer} = decode_length(Buffer),
+ << V:Length/binary, RestBuffer2/binary>> = RestBuffer,
+ {Form, (Class bsl 16) bor TagNo, V, RestBuffer2};
+decode_tag_and_length(<<Class:2, Form:1, 31:5, Buffer/binary>>) ->
+ {TagNo, Buffer1} = decode_tag(Buffer, 0),
+ {Length, RestBuffer} = decode_length(Buffer1),
+ << V:Length/binary, RestBuffer2/binary>> = RestBuffer,
+ {Form, (Class bsl 16) bor TagNo, V, RestBuffer2}.
+
+
+
+%% last partial tag
+decode_tag(<<0:1,PartialTag:7, Buffer/binary>>, TagAck) ->
+ TagNo = (TagAck bsl 7) bor PartialTag,
+ {TagNo, Buffer};
+% more tags
+decode_tag(<<_:1,PartialTag:7, Buffer/binary>>, TagAck) ->
+ TagAck1 = (TagAck bsl 7) bor PartialTag,
+ decode_tag(Buffer, TagAck1).
+
+%%=======================================================================
+%%
+%% Encode all tags in the list Tags and return a possibly deep list of
+%% bytes with tag and length encoded
+%% The taglist must be in reverse order (fixed by the asn1 compiler)
+%% e.g [T1,T2] will result in
+%% {[EncodedT2,EncodedT1|BytesSoFar],LenSoFar+LenT2+LenT1}
+%%
+
+encode_tags([Tag|Trest], BytesSoFar, LenSoFar) ->
+ {Bytes2,L2} = encode_length(LenSoFar),
+ encode_tags(Trest, [Tag,Bytes2|BytesSoFar],
+ LenSoFar + byte_size(Tag) + L2);
+encode_tags([], BytesSoFar, LenSoFar) ->
+ {BytesSoFar,LenSoFar}.
+
+encode_tags(TagIn, {BytesSoFar,LenSoFar}) ->
+ encode_tags(TagIn, BytesSoFar, LenSoFar).
+
+%%===============================================================================
+%%
+%% This comment is valid for all the encode/decode functions
+%%
+%% C = Constraint -> typically {'ValueRange',LowerBound,UpperBound}
+%% used for PER-coding but not for BER-coding.
+%%
+%% Val = Value. If Val is an atom then it is a symbolic integer value
+%% (i.e the atom must be one of the names in the NamedNumberList).
+%% The NamedNumberList is used to translate the atom to an integer value
+%% before encoding.
+%%
+%%===============================================================================
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_open_type(Value) -> io_list (i.e nested list with integers, binaries)
+%% Value = list of bytes of an already encoded value (the list must be flat)
+%% | binary
+
+encode_open_type(Val, T) when is_list(Val) ->
+ encode_open_type(list_to_binary(Val), T);
+encode_open_type(Val, []) ->
+ {Val,byte_size(Val)};
+encode_open_type(Val, Tag) ->
+ encode_tags(Tag, Val, byte_size(Val)).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% decode_open_type(Tlv, TagIn) -> Value
+%% Tlv = {Tag,V} | V where V -> binary()
+%% TagIn = [TagVal] where TagVal -> int()
+%% Value = binary with decoded data (which must be decoded again as some type)
+%%
+decode_open_type(Tlv, TagIn) ->
+ case match_tags(Tlv, TagIn) of
+ Bin when is_binary(Bin) ->
+ {InnerTlv,_} = ber_decode_nif(Bin),
+ InnerTlv;
+ TlvBytes -> TlvBytes
+ end.
+
+decode_open_type_as_binary(Tlv, TagIn)->
+ ber_encode(match_tags(Tlv, TagIn)).
+
+%%===============================================================================
+%%===============================================================================
+%%===============================================================================
+%% Boolean, ITU_T X.690 Chapter 8.2
+%%===============================================================================
+%%===============================================================================
+%%===============================================================================
+
+%%===============================================================================
+%% encode_boolean(Integer, ReversedTagList) -> {[Octet],Len}
+%%===============================================================================
+
+encode_boolean(true, TagIn) ->
+ encode_tags(TagIn, [16#FF],1);
+encode_boolean(false, TagIn) ->
+ encode_tags(TagIn, [0],1);
+encode_boolean(X,_) ->
+ exit({error,{asn1, {encode_boolean, X}}}).
+
+
+%%===============================================================================
+%% decode_boolean(BuffList, HasTag, TotalLen) -> {true, Remain, RemovedBytes} |
+%% {false, Remain, RemovedBytes}
+%%===============================================================================
+decode_boolean(Tlv,TagIn) ->
+ Val = match_tags(Tlv, TagIn),
+ case Val of
+ <<0:8>> ->
+ false;
+ <<_:8>> ->
+ true;
+ _ ->
+ exit({error,{asn1, {decode_boolean, Val}}})
+ end.
+
+
+%%===========================================================================
+%% Integer, ITU_T X.690 Chapter 8.3
+
+%% encode_integer(Constraint, Value, Tag) -> [octet list]
+%% encode_integer(Constraint, Name, NamedNumberList, Tag) -> [octet list]
+%% Value = INTEGER | {Name,INTEGER}
+%% Tag = tag | notag
+%%===========================================================================
+
+encode_integer(Val, Tag) when is_integer(Val) ->
+ encode_tags(Tag, encode_integer(Val));
+encode_integer(Val, _Tag) ->
+ exit({error,{asn1,{encode_integer,Val}}}).
+
+
+encode_integer(Val, NamedNumberList, Tag) when is_atom(Val) ->
+ case lists:keyfind(Val, 1, NamedNumberList) of
+ {_, NewVal} ->
+ encode_tags(Tag, encode_integer(NewVal));
+ _ ->
+ exit({error,{asn1, {encode_integer_namednumber, Val}}})
+ end;
+encode_integer(Val, _NamedNumberList, Tag) ->
+ encode_tags(Tag, encode_integer(Val)).
+
+encode_integer(Val) ->
+ Bytes =
+ if
+ Val >= 0 ->
+ encode_integer_pos(Val, []);
+ true ->
+ encode_integer_neg(Val, [])
+ end,
+ {Bytes,length(Bytes)}.
+
+encode_integer_pos(0, [B|_Acc]=L) when B < 128 ->
+ L;
+encode_integer_pos(N, Acc) ->
+ encode_integer_pos((N bsr 8), [N band 16#ff| Acc]).
+
+encode_integer_neg(-1, [B1|_T]=L) when B1 > 127 ->
+ L;
+encode_integer_neg(N, Acc) ->
+ encode_integer_neg(N bsr 8, [N band 16#ff|Acc]).
+
+%%===============================================================================
+%% decode integer
+%% (Buffer, Range, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
+%% (Buffer, Range, NamedNumberList, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
+%%===============================================================================
+
+decode_integer(Tlv, Range, NamedNumberList, TagIn) ->
+ V = match_tags(Tlv, TagIn),
+ Int = range_check_integer(decode_integer(V), Range),
+ number2name(Int, NamedNumberList).
+
+decode_integer(Tlv, Range, TagIn) ->
+ V = match_tags(Tlv, TagIn),
+ Int = decode_integer(V),
+ range_check_integer(Int, Range).
+
+decode_integer(Bin) ->
+ Len = byte_size(Bin),
+ <<Int:Len/signed-unit:8>> = Bin,
+ Int.
+
+range_check_integer(Int, Range) ->
+ case Range of
+ [] -> % No length constraint
+ Int;
+ {Lb,Ub} when Int >= Lb, Ub >= Int -> % variable length constraint
+ Int;
+ {_,_} ->
+ exit({error,{asn1,{integer_range,Range,Int}}});
+ Int -> % fixed value constraint
+ Int;
+ SingleValue when is_integer(SingleValue) ->
+ exit({error,{asn1,{integer_range,Range,Int}}});
+ _ -> % some strange constraint that we don't support yet
+ Int
+ end.
+
+number2name(Int, []) ->
+ Int;
+number2name(Int, NamedNumberList) ->
+ case lists:keyfind(Int, 2, NamedNumberList) of
+ {NamedVal,_} ->
+ NamedVal;
+ _ ->
+ Int
+ end.
+
+
+%%============================================================================
+%% Enumerated value, ITU_T X.690 Chapter 8.4
+
+%% encode enumerated value
+%%============================================================================
+encode_enumerated(Val, TagIn) when is_integer(Val) ->
+ encode_tags(TagIn, encode_integer(Val)).
+
+%%============================================================================
+%% decode enumerated value
+%% (Buffer, Range, NamedNumberList, HasTag, TotalLen) -> Value
+%%===========================================================================
+decode_enumerated(Tlv, NamedNumberList, Tags) ->
+ Buffer = match_tags(Tlv, Tags),
+ decode_enumerated_notag(Buffer, NamedNumberList, Tags).
+
+decode_enumerated_notag(Buffer, {NamedNumberList,ExtList}, _Tags) ->
+ IVal = decode_integer(Buffer),
+ case decode_enumerated1(IVal, NamedNumberList) of
+ {asn1_enum,IVal} ->
+ decode_enumerated1(IVal,ExtList);
+ EVal ->
+ EVal
+ end;
+decode_enumerated_notag(Buffer, NNList, _Tags) ->
+ IVal = decode_integer(Buffer),
+ case decode_enumerated1(IVal, NNList) of
+ {asn1_enum,_} ->
+ exit({error,{asn1, {illegal_enumerated, IVal}}});
+ EVal ->
+ EVal
+ end.
+
+decode_enumerated1(Val, NamedNumberList) ->
+ %% it must be a named integer
+ case lists:keyfind(Val, 2, NamedNumberList) of
+ {NamedVal, _} ->
+ NamedVal;
+ _ ->
+ {asn1_enum,Val}
+ end.
+
+
+%%============================================================================
+%% Bitstring value, ITU_T X.690 Chapter 8.6
+%%
+%% encode bitstring value
+%%
+%% bitstring NamedBitList
+%% Val can be of:
+%% - [identifiers] where only named identifers are set to one,
+%% the Constraint must then have some information of the
+%% bitlength.
+%% - [list of ones and zeroes] all bits
+%% - integer value representing the bitlist
+%% C is constrint Len, only valid when identifiers
+%%============================================================================
+
+encode_bit_string(C, Bits, NamedBitList, TagIn) when is_bitstring(Bits) ->
+ PadLen = (8 - (bit_size(Bits) band 7)) band 7,
+ Compact = {PadLen,<<Bits/bitstring,0:PadLen>>},
+ encode_bin_bit_string(C, Compact, NamedBitList, TagIn);
+encode_bit_string(C,Bin={Unused,BinBits},NamedBitList,TagIn) when is_integer(Unused), is_binary(BinBits) ->
+ encode_bin_bit_string(C,Bin,NamedBitList,TagIn);
+encode_bit_string(C, [FirstVal | RestVal], NamedBitList, TagIn) when is_atom(FirstVal) ->
+ encode_bit_string_named(C, [FirstVal | RestVal], NamedBitList, TagIn);
+
+encode_bit_string(C, [{bit,X} | RestVal], NamedBitList, TagIn) ->
+ encode_bit_string_named(C, [{bit,X} | RestVal], NamedBitList, TagIn);
+
+encode_bit_string(C, [FirstVal| RestVal], NamedBitList, TagIn) when is_integer(FirstVal) ->
+ encode_bit_string_bits(C, [FirstVal | RestVal], NamedBitList, TagIn);
+
+encode_bit_string(_C, 0, _NamedBitList, TagIn) ->
+ encode_tags(TagIn, <<0>>,1);
+
+encode_bit_string(_C, [], _NamedBitList, TagIn) ->
+ encode_tags(TagIn, <<0>>,1);
+
+encode_bit_string(C, IntegerVal, NamedBitList, TagIn) when is_integer(IntegerVal) ->
+ BitListVal = int_to_bitlist(IntegerVal),
+ encode_bit_string_bits(C, BitListVal, NamedBitList, TagIn).
+
+
+int_to_bitlist(0) ->
+ [];
+int_to_bitlist(Int) when is_integer(Int), Int >= 0 ->
+ [Int band 1 | int_to_bitlist(Int bsr 1)].
+
+
+%%=================================================================
+%% Encode BIT STRING of the form {Unused,BinBits}.
+%% Unused is the number of unused bits in the last byte in BinBits
+%% and BinBits is a binary representing the BIT STRING.
+%%=================================================================
+encode_bin_bit_string(C,{Unused,BinBits},_NamedBitList,TagIn)->
+ case get_constraint(C,'SizeConstraint') of
+ no ->
+ remove_unused_then_dotag(TagIn, Unused, BinBits);
+ {_Min,Max} ->
+ BBLen = (byte_size(BinBits)*8)-Unused,
+ if
+ BBLen > Max ->
+ exit({error,{asn1,
+ {bitstring_length,
+ {{was,BBLen},{maximum,Max}}}}});
+ true ->
+ remove_unused_then_dotag(TagIn, Unused, BinBits)
+ end;
+ Size ->
+ case ((byte_size(BinBits)*8)-Unused) of
+ BBSize when BBSize =< Size ->
+ remove_unused_then_dotag(TagIn, Unused, BinBits);
+ BBSize ->
+ exit({error,{asn1,
+ {bitstring_length,
+ {{was,BBSize},{should_be,Size}}}}})
+ end
+ end.
+
+remove_unused_then_dotag(TagIn,Unused,BinBits) ->
+ case Unused of
+ 0 when byte_size(BinBits) =:= 0 ->
+ encode_tags(TagIn, <<0>>, 1);
+ 0 ->
+ Bin = <<Unused,BinBits/binary>>,
+ encode_tags(TagIn,Bin,size(Bin));
+ Num ->
+ N = byte_size(BinBits)-1,
+ <<BBits:N/binary,LastByte>> = BinBits,
+ encode_tags(TagIn,
+ [Unused,binary_to_list(BBits) ++[(LastByte bsr Num) bsl Num]],
+ 1+byte_size(BinBits))
+ end.
+
+
+%%=================================================================
+%% Encode named bits
+%%=================================================================
+
+encode_bit_string_named(C, [FirstVal | RestVal], NamedBitList, TagIn) ->
+ ToSetPos = get_all_bitposes([FirstVal | RestVal], NamedBitList, []),
+ Size =
+ case get_constraint(C,'SizeConstraint') of
+ no ->
+ lists:max(ToSetPos)+1;
+ {_Min,Max} ->
+ Max;
+ TSize ->
+ TSize
+ end,
+ BitList = make_and_set_list(Size, ToSetPos, 0),
+ {Len, Unused, OctetList} = encode_bitstring(BitList),
+ encode_tags(TagIn, [Unused|OctetList],Len+1).
+
+
+%%----------------------------------------
+%% get_all_bitposes([list of named bits to set], named_bit_db, []) ->
+%% [sorted_list_of_bitpositions_to_set]
+%%----------------------------------------
+
+get_all_bitposes([{bit,ValPos}|Rest], NamedBitList, Ack) ->
+ get_all_bitposes(Rest, NamedBitList, [ValPos | Ack ]);
+get_all_bitposes([Val | Rest], NamedBitList, Ack) when is_atom(Val) ->
+ case lists:keyfind(Val, 1, NamedBitList) of
+ {_ValName, ValPos} ->
+ get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]);
+ _ ->
+ exit({error,{asn1, {bitstring_namedbit, Val}}})
+ end;
+get_all_bitposes([], _NamedBitList, Ack) ->
+ lists:sort(Ack).
+
+
+%%----------------------------------------
+%% make_and_set_list(Len of list to return, [list of positions to set to 1])->
+%% returns list of Len length, with all in SetPos set.
+%% in positioning in list the first element is 0, the second 1 etc.., but
+%% Len will make a list of length Len, not Len + 1.
+%% BitList = make_and_set_list(C, ToSetPos, 0),
+%%----------------------------------------
+
+make_and_set_list(0, [], _) -> [];
+make_and_set_list(0, _, _) ->
+ exit({error,{asn1,bitstring_sizeconstraint}});
+make_and_set_list(Len, [XPos|SetPos], XPos) ->
+ [1 | make_and_set_list(Len - 1, SetPos, XPos + 1)];
+make_and_set_list(Len, [Pos|SetPos], XPos) ->
+ [0 | make_and_set_list(Len - 1, [Pos | SetPos], XPos + 1)];
+make_and_set_list(Len, [], XPos) ->
+ [0 | make_and_set_list(Len - 1, [], XPos + 1)].
+
+
+
+
+
+
+%%=================================================================
+%% Encode bit string for lists of ones and zeroes
+%%=================================================================
+encode_bit_string_bits(C, BitListVal, _NamedBitList, TagIn) when is_list(BitListVal) ->
+ case get_constraint(C,'SizeConstraint') of
+ no ->
+ {Len, Unused, OctetList} = encode_bitstring(BitListVal),
+ %%add unused byte to the Len
+ encode_tags(TagIn, [Unused | OctetList], Len+1);
+ Constr={Min,_Max} when is_integer(Min) ->
+ %% Max may be an integer or 'MAX'
+ encode_constr_bit_str_bits(Constr,BitListVal,TagIn);
+ {Constr={_,_},[]} ->%Constr={Min,Max}
+ %% constraint with extension mark
+ encode_constr_bit_str_bits(Constr,BitListVal,TagIn);
+ Constr={{_,_},{_,_}} ->%{{Min1,Max1},{Min2,Max2}}
+ %% constraint with extension mark
+ encode_constr_bit_str_bits(Constr,BitListVal,TagIn);
+ Size ->
+ case length(BitListVal) of
+ BitSize when BitSize == Size ->
+ {Len, Unused, OctetList} = encode_bitstring(BitListVal),
+ %%add unused byte to the Len
+ encode_tags(TagIn, [Unused | OctetList], Len+1);
+ BitSize when BitSize < Size ->
+ PaddedList = pad_bit_list(Size-BitSize,BitListVal),
+ {Len, Unused, OctetList} = encode_bitstring(PaddedList),
+ %%add unused byte to the Len
+ encode_tags(TagIn, [Unused | OctetList], Len+1);
+ BitSize ->
+ exit({error,{asn1,
+ {bitstring_length, {{was,BitSize},{should_be,Size}}}}})
+ end
+
+ end.
+
+encode_constr_bit_str_bits({{_Min1,Max1},{Min2,Max2}},BitListVal,TagIn) ->
+ BitLen = length(BitListVal),
+ case BitLen of
+ Len when Len > Max2 ->
+ exit({error,{asn1,{bitstring_length,{{was,BitLen},
+ {maximum,Max2}}}}});
+ Len when Len > Max1, Len < Min2 ->
+ exit({error,{asn1,{bitstring_length,{{was,BitLen},
+ {not_allowed_interval,
+ Max1,Min2}}}}});
+ _ ->
+ {Len, Unused, OctetList} = encode_bitstring(BitListVal),
+ %%add unused byte to the Len
+ encode_tags(TagIn, [Unused, OctetList], Len+1)
+ end;
+encode_constr_bit_str_bits({Min,Max},BitListVal,TagIn) ->
+ BitLen = length(BitListVal),
+ if
+ BitLen > Max ->
+ exit({error,{asn1,{bitstring_length,{{was,BitLen},
+ {maximum,Max}}}}});
+ BitLen < Min ->
+ exit({error,{asn1,{bitstring_length,{{was,BitLen},
+ {minimum,Max}}}}});
+ true ->
+ {Len, Unused, OctetList} = encode_bitstring(BitListVal),
+ %%add unused byte to the Len
+ encode_tags(TagIn, [Unused, OctetList], Len+1)
+ end.
+
+
+%% returns a list of length Size + length(BitListVal), with BitListVal
+%% as the most significant elements followed by padded zero elements
+pad_bit_list(Size, BitListVal) ->
+ Tail = lists:duplicate(Size,0),
+ lists:append(BitListVal, Tail).
+
+%%=================================================================
+%% Do the actual encoding
+%% ([bitlist]) -> {ListLen, UnusedBits, OctetList}
+%%=================================================================
+
+encode_bitstring([B8, B7, B6, B5, B4, B3, B2, B1 | Rest]) ->
+ Val = (B8 bsl 7) bor (B7 bsl 6) bor (B6 bsl 5) bor (B5 bsl 4) bor
+ (B4 bsl 3) bor (B3 bsl 2) bor (B2 bsl 1) bor B1,
+ encode_bitstring(Rest, [Val], 1);
+encode_bitstring(Val) ->
+ {Unused, Octet} = unused_bitlist(Val, 7, 0),
+ {1, Unused, [Octet]}.
+
+encode_bitstring([B8, B7, B6, B5, B4, B3, B2, B1 | Rest], Ack, Len) ->
+ Val = (B8 bsl 7) bor (B7 bsl 6) bor (B6 bsl 5) bor (B5 bsl 4) bor
+ (B4 bsl 3) bor (B3 bsl 2) bor (B2 bsl 1) bor B1,
+ encode_bitstring(Rest, [Ack | [Val]], Len + 1);
+%%even multiple of 8 bits..
+encode_bitstring([], Ack, Len) ->
+ {Len, 0, Ack};
+%% unused bits in last octet
+encode_bitstring(Rest, Ack, Len) ->
+ {Unused, Val} = unused_bitlist(Rest, 7, 0),
+ {Len + 1, Unused, [Ack | [Val]]}.
+
+%%%%%%%%%%%%%%%%%%
+%% unused_bitlist([list of ones and zeros <= 7], 7, []) ->
+%% {Unused bits, Last octet with bits moved to right}
+unused_bitlist([], Trail, Ack) ->
+ {Trail + 1, Ack};
+unused_bitlist([Bit | Rest], Trail, Ack) ->
+ unused_bitlist(Rest, Trail - 1, (Bit bsl Trail) bor Ack).
+
+
+%%============================================================================
+%% decode bitstring value
+%%============================================================================
+
+decode_compact_bit_string(Buffer, Range, Tags) ->
+ case match_and_collect(Buffer, Tags) of
+ <<0>> ->
+ check_restricted_string({0,<<>>}, 0, Range);
+ <<Unused,Bits/binary>> ->
+ Val = {Unused,Bits},
+ Len = bit_size(Bits) - Unused,
+ check_restricted_string(Val, Len, Range)
+ end.
+
+decode_legacy_bit_string(Buffer, Range, Tags) ->
+ Val = case match_and_collect(Buffer, Tags) of
+ <<0>> ->
+ [];
+ <<Unused,Bits/binary>> ->
+ decode_bitstring2(byte_size(Bits), Unused, Bits)
+ end,
+ check_restricted_string(Val, length(Val), Range).
+
+decode_native_bit_string(Buffer, Range, Tags) ->
+ case match_and_collect(Buffer, Tags) of
+ <<0>> ->
+ check_restricted_string(<<>>, 0, Range);
+ <<Unused,Bits/binary>> ->
+ Size = bit_size(Bits) - Unused,
+ <<Val:Size/bitstring,_:Unused/bitstring>> = Bits,
+ check_restricted_string(Val, Size, Range)
+ end.
+
+decode_named_bit_string(Buffer, NamedNumberList, Tags) ->
+ case match_and_collect(Buffer, Tags) of
+ <<0>> ->
+ [];
+ <<Unused,Bits/binary>> ->
+ BitString = decode_bitstring2(byte_size(Bits), Unused, Bits),
+ decode_bitstring_NNL(BitString, NamedNumberList)
+ end.
+
+%%----------------------------------------
+%% Decode the in buffer to bits
+%%----------------------------------------
+decode_bitstring2(1, Unused,
+ <<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1,_/binary>>) ->
+ lists:sublist([B7,B6,B5,B4,B3,B2,B1,B0], 8-Unused);
+decode_bitstring2(Len, Unused,
+ <<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1,Buffer/binary>>) ->
+ [B7,B6,B5,B4,B3,B2,B1,B0|
+ decode_bitstring2(Len - 1, Unused, Buffer)].
+
+%%----------------------------------------
+%% Decode the bitlist to names
+%%----------------------------------------
+
+decode_bitstring_NNL(BitList, NamedNumberList) ->
+ decode_bitstring_NNL(BitList, NamedNumberList, 0, []).
+
+
+decode_bitstring_NNL([],_,_No,Result) ->
+ lists:reverse(Result);
+decode_bitstring_NNL([B|BitList],[{Name,No}|NamedNumberList],No,Result) ->
+ if
+ B =:= 0 ->
+ decode_bitstring_NNL(BitList,NamedNumberList,No+1,Result);
+ true ->
+ decode_bitstring_NNL(BitList,NamedNumberList,No+1,[Name|Result])
+ end;
+decode_bitstring_NNL([1|BitList],NamedNumberList,No,Result) ->
+ decode_bitstring_NNL(BitList,NamedNumberList,No+1,[{bit,No}|Result]);
+decode_bitstring_NNL([0|BitList],NamedNumberList,No,Result) ->
+ decode_bitstring_NNL(BitList,NamedNumberList,No+1,Result).
+
+%%============================================================================
+%% Null value, ITU_T X.690 Chapter 8.8
+%%
+%% encode NULL value
+%%============================================================================
+
+encode_null(_Val, TagIn) ->
+ encode_tags(TagIn, [], 0).
+
+%%============================================================================
+%% decode NULL value
+%% (Buffer, HasTag, TotalLen) -> {NULL, Remain, RemovedBytes}
+%%============================================================================
+
+decode_null(Tlv, Tags) ->
+ Val = match_tags(Tlv, Tags),
+ case Val of
+ <<>> ->
+ 'NULL';
+ _ ->
+ exit({error,{asn1,{decode_null,Val}}})
+ end.
+
+%%============================================================================
+%% Object identifier, ITU_T X.690 Chapter 8.19
+%%
+%% encode Object Identifier value
+%%============================================================================
+
+encode_object_identifier(Val, TagIn) ->
+ encode_tags(TagIn, e_object_identifier(Val)).
+
+e_object_identifier({'OBJECT IDENTIFIER', V}) ->
+ e_object_identifier(V);
+e_object_identifier(V) when is_tuple(V) ->
+ e_object_identifier(tuple_to_list(V));
+
+%%%%%%%%%%%%%%%
+%% e_object_identifier([List of Obect Identifiers]) ->
+%% {[Encoded Octetlist of ObjIds], IntLength}
+%%
+e_object_identifier([E1,E2|Tail]) ->
+ Head = 40*E1 + E2, % wow!
+ {H,Lh} = mk_object_val(Head),
+ {R,Lr} = lists:mapfoldl(fun enc_obj_id_tail/2, 0, Tail),
+ {[H|R],Lh+Lr}.
+
+enc_obj_id_tail(H, Len) ->
+ {B,L} = mk_object_val(H),
+ {B,Len+L}.
+
+
+%%%%%%%%%%%
+%% mk_object_val(Value) -> {OctetList, Len}
+%% returns a Val as a list of octets, the 8th bit is always set to one
+%% except for the last octet, where it's 0
+%%
+
+
+mk_object_val(Val) when Val =< 127 ->
+ {[255 band Val], 1};
+mk_object_val(Val) ->
+ mk_object_val(Val bsr 7, [Val band 127], 1).
+mk_object_val(0, Ack, Len) ->
+ {Ack, Len};
+mk_object_val(Val, Ack, Len) ->
+ mk_object_val(Val bsr 7, [((Val band 127) bor 128) | Ack], Len + 1).
+
+
+
+%%============================================================================
+%% decode Object Identifier value
+%% (Buffer, HasTag, TotalLen) -> {{ObjId}, Remain, RemovedBytes}
+%%============================================================================
+
+decode_object_identifier(Tlv, Tags) ->
+ Val = match_tags(Tlv, Tags),
+ [AddedObjVal|ObjVals] = dec_subidentifiers(Val,0,[]),
+ {Val1, Val2} = if
+ AddedObjVal < 40 ->
+ {0, AddedObjVal};
+ AddedObjVal < 80 ->
+ {1, AddedObjVal - 40};
+ true ->
+ {2, AddedObjVal - 80}
+ end,
+ list_to_tuple([Val1, Val2 | ObjVals]).
+
+dec_subidentifiers(<<>>,_Av,Al) ->
+ lists:reverse(Al);
+dec_subidentifiers(<<1:1,H:7,T/binary>>,Av,Al) ->
+ dec_subidentifiers(T,(Av bsl 7) + H,Al);
+dec_subidentifiers(<<H,T/binary>>,Av,Al) ->
+ dec_subidentifiers(T,0,[((Av bsl 7) + H)|Al]).
+
+%%============================================================================
+%% RELATIVE-OID, ITU_T X.690 Chapter 8.20
+%%
+%% encode Relative Object Identifier
+%%============================================================================
+
+encode_relative_oid(Val,TagIn) when is_tuple(Val) ->
+ encode_relative_oid(tuple_to_list(Val),TagIn);
+encode_relative_oid(Val,TagIn) ->
+ encode_tags(TagIn, enc_relative_oid(Val)).
+
+enc_relative_oid(Tuple) when is_tuple(Tuple) ->
+ enc_relative_oid(tuple_to_list(Tuple));
+enc_relative_oid(Val) ->
+ lists:mapfoldl(fun(X,AccIn) ->
+ {SO,L} = mk_object_val(X),
+ {SO,L+AccIn}
+ end, 0, Val).
+
+%%============================================================================
+%% decode Relative Object Identifier value
+%% (Buffer, HasTag, TotalLen) -> {{ObjId}, Remain, RemovedBytes}
+%%============================================================================
+decode_relative_oid(Tlv, Tags) ->
+ Val = match_tags(Tlv, Tags),
+ ObjVals = dec_subidentifiers(Val,0,[]),
+ list_to_tuple(ObjVals).
+
+%%============================================================================
+%% Restricted character string types, ITU_T X.690 Chapter 8.20
+%%
+%% encode Numeric Printable Teletex Videotex Visible IA5 Graphic General strings
+%%============================================================================
+encode_restricted_string(OctetList, TagIn) when is_binary(OctetList) ->
+ encode_tags(TagIn, OctetList, byte_size(OctetList));
+encode_restricted_string(OctetList, TagIn) when is_list(OctetList) ->
+ encode_tags(TagIn, OctetList, length(OctetList)).
+
+%%============================================================================
+%% decode Numeric Printable Teletex Videotex Visible IA5 Graphic General strings
+%%============================================================================
+
+decode_restricted_string(Tlv, TagsIn) ->
+ Bin = match_and_collect(Tlv, TagsIn),
+ binary_to_list(Bin).
+
+decode_restricted_string(Tlv, Range, TagsIn) ->
+ Bin = match_and_collect(Tlv, TagsIn),
+ check_restricted_string(binary_to_list(Bin), byte_size(Bin), Range).
+
+check_restricted_string(Val, StrLen, Range) ->
+ case Range of
+ {Lb,Ub} when StrLen >= Lb, Ub >= StrLen -> % variable length constraint
+ Val;
+ {{Lb,_Ub},[]} when StrLen >= Lb ->
+ Val;
+ {{Lb,_Ub},_Ext=[Min|_]} when StrLen >= Lb; StrLen >= Min ->
+ Val;
+ {{Lb1,Ub1},{Lb2,Ub2}} when StrLen >= Lb1, StrLen =< Ub1;
+ StrLen =< Ub2, StrLen >= Lb2 ->
+ Val;
+ StrLen -> % fixed length constraint
+ Val;
+ {_,_} ->
+ exit({error,{asn1,{length,Range,Val}}});
+ _Len when is_integer(_Len) ->
+ exit({error,{asn1,{length,Range,Val}}});
+ _ -> % some strange constraint that we don't support yet
+ Val
+ end.
+
+
+%%============================================================================
+%% encode Universal string
+%%============================================================================
+
+encode_universal_string(Universal, TagIn) ->
+ OctetList = mk_uni_list(Universal),
+ encode_tags(TagIn, OctetList, length(OctetList)).
+
+mk_uni_list(In) ->
+ mk_uni_list(In,[]).
+
+mk_uni_list([],List) ->
+ lists:reverse(List);
+mk_uni_list([{A,B,C,D}|T],List) ->
+ mk_uni_list(T,[D,C,B,A|List]);
+mk_uni_list([H|T],List) ->
+ mk_uni_list(T,[H,0,0,0|List]).
+
+%%===========================================================================
+%% decode Universal strings
+%% (Buffer, Range, StringType, HasTag, LenIn) ->
+%% {String, Remain, RemovedBytes}
+%%===========================================================================
+
+decode_universal_string(Buffer, Range, Tags) ->
+ Bin = match_and_collect(Buffer, Tags),
+ Val = mk_universal_string(binary_to_list(Bin)),
+ check_restricted_string(Val, length(Val), Range).
+
+mk_universal_string(In) ->
+ mk_universal_string(In, []).
+
+mk_universal_string([], Acc) ->
+ lists:reverse(Acc);
+mk_universal_string([0,0,0,D|T], Acc) ->
+ mk_universal_string(T, [D|Acc]);
+mk_universal_string([A,B,C,D|T], Acc) ->
+ mk_universal_string(T, [{A,B,C,D}|Acc]).
+
+
+%%============================================================================
+%% encode UTF8 string
+%%============================================================================
+
+encode_UTF8_string(UTF8String, TagIn) when is_binary(UTF8String) ->
+ encode_tags(TagIn, UTF8String, byte_size(UTF8String));
+encode_UTF8_string(UTF8String, TagIn) ->
+ encode_tags(TagIn, UTF8String, length(UTF8String)).
+
+
+%%============================================================================
+%% decode UTF8 string
+%%============================================================================
+
+decode_UTF8_string(Tlv,TagsIn) ->
+ Val = match_tags(Tlv, TagsIn),
+ case Val of
+ [_|_]=PartList -> % constructed val
+ collect_parts(PartList);
+ Bin ->
+ Bin
+ end.
+
+
+%%============================================================================
+%% encode BMP string
+%%============================================================================
+
+encode_BMP_string(BMPString, TagIn) ->
+ OctetList = mk_BMP_list(BMPString),
+ encode_tags(TagIn, OctetList, length(OctetList)).
+
+mk_BMP_list(In) ->
+ mk_BMP_list(In, []).
+
+mk_BMP_list([],List) ->
+ lists:reverse(List);
+mk_BMP_list([{0,0,C,D}|T], List) ->
+ mk_BMP_list(T, [D,C|List]);
+mk_BMP_list([H|T], List) ->
+ mk_BMP_list(T, [H,0|List]).
+
+%%============================================================================
+%% decode (OctetList, Range(ignored), tag|notag) -> {ValList, RestList}
+%% (Buffer, Range, StringType, HasTag, TotalLen) ->
+%% {String, Remain, RemovedBytes}
+%%============================================================================
+decode_BMP_string(Buffer, Range, Tags) ->
+ Bin = match_and_collect(Buffer, Tags),
+ Val = mk_BMP_string(binary_to_list(Bin)),
+ check_restricted_string(Val, length(Val), Range).
+
+mk_BMP_string(In) ->
+ mk_BMP_string(In,[]).
+
+mk_BMP_string([], US) ->
+ lists:reverse(US);
+mk_BMP_string([0,B|T], US) ->
+ mk_BMP_string(T, [B|US]);
+mk_BMP_string([C,D|T], US) ->
+ mk_BMP_string(T, [{0,0,C,D}|US]).
+
+
+%%============================================================================
+%% Generalized time, ITU_T X.680 Chapter 39
+%%
+%% encode Generalized time
+%%============================================================================
+
+encode_generalized_time(OctetList, TagIn) ->
+ encode_tags(TagIn, OctetList, length(OctetList)).
+
+%%============================================================================
+%% decode Generalized time
+%% (Buffer, Range, HasTag, TotalLen) -> {String, Remain, RemovedBytes}
+%%============================================================================
+
+decode_generalized_time(Tlv, _Range, Tags) ->
+ Val = match_tags(Tlv, Tags),
+ NewVal = case Val of
+ [_H|_T]=PartList -> % constructed
+ collect_parts(PartList);
+ Bin ->
+ Bin
+ end,
+ binary_to_list(NewVal).
+
+%%============================================================================
+%% Universal time, ITU_T X.680 Chapter 40
+%%
+%% encode UTC time
+%%============================================================================
+
+encode_utc_time(OctetList, TagIn) ->
+ encode_tags(TagIn, OctetList, length(OctetList)).
+
+%%============================================================================
+%% decode UTC time
+%% (Buffer, Range, HasTag, TotalLen) -> {String, Remain, RemovedBytes}
+%%============================================================================
+
+decode_utc_time(Tlv, _Range, Tags) ->
+ Val = match_tags(Tlv, Tags),
+ NewVal = case Val of
+ [_|_]=PartList -> % constructed
+ collect_parts(PartList);
+ Bin ->
+ Bin
+ end,
+ binary_to_list(NewVal).
+
+
+%%============================================================================
+%% Length handling
+%%
+%% Encode length
+%%
+%% encode_length(Int) ->
+%% [<127]| [128 + Int (<127),OctetList] | [16#80]
+%%============================================================================
+
+encode_length(L) when L =< 16#7F ->
+ {[L],1};
+encode_length(L) ->
+ Oct = minimum_octets(L),
+ Len = length(Oct),
+ if
+ Len =< 126 ->
+ {[16#80 bor Len|Oct],Len+1};
+ true ->
+ exit({error,{asn1, too_long_length_oct, Len}})
+ end.
+
+%% Val must be >= 0
+minimum_octets(Val) ->
+ minimum_octets(Val, []).
+
+minimum_octets(0, Acc) ->
+ Acc;
+minimum_octets(Val, Acc) ->
+ minimum_octets(Val bsr 8, [Val band 16#FF|Acc]).
+
+
+%%===========================================================================
+%% Decode length
+%%
+%% decode_length(OctetList) -> {{indefinite, RestOctetsL}, NoRemovedBytes} |
+%% {{Length, RestOctetsL}, NoRemovedBytes}
+%%===========================================================================
+
+decode_length(<<1:1,0:7,T/binary>>) ->
+ {indefinite,T};
+decode_length(<<0:1,Length:7,T/binary>>) ->
+ {Length,T};
+decode_length(<<1:1,LL:7,Length:LL/unit:8,T/binary>>) ->
+ {Length,T}.
+
+%% dynamicsort_SET_components(Arg) ->
+%% Res Arg -> list()
+%% Res -> list()
+%% Sorts the elements in Arg according to the encoded tag in
+%% increasing order.
+dynamicsort_SET_components(ListOfEncCs) ->
+ TagBinL = [begin
+ Bin = list_to_binary(L),
+ {dynsort_decode_tag(Bin),Bin}
+ end || L <- ListOfEncCs],
+ [E || {_,E} <- lists:keysort(1, TagBinL)].
+
+%% dynamicsort_SETOF(Arg) -> Res
+%% Arg -> list()
+%% Res -> list()
+%% Sorts the elements in Arg in increasing size
+dynamicsort_SETOF(ListOfEncVal) ->
+ BinL = lists:map(fun(L) when is_list(L) -> list_to_binary(L);
+ (B) -> B end, ListOfEncVal),
+ lists:sort(BinL).
+
+%% multiple octet tag
+dynsort_decode_tag(<<Class:2,_Form:1,31:5,Buffer/binary>>) ->
+ TagNum = dynsort_decode_tag(Buffer, 0),
+ {Class,TagNum};
+
+%% single tag (< 31 tags)
+dynsort_decode_tag(<<Class:2,_Form:1,TagNum:5,_/binary>>) ->
+ {Class,TagNum}.
+
+dynsort_decode_tag(<<0:1,PartialTag:7,_/binary>>, TagAcc) ->
+ (TagAcc bsl 7) bor PartialTag;
+dynsort_decode_tag(<<_:1,PartialTag:7,Buffer/binary>>, TagAcc0) ->
+ TagAcc = (TagAcc0 bsl 7) bor PartialTag,
+ dynsort_decode_tag(Buffer, TagAcc).
+
+
+%%-------------------------------------------------------------------------
+%% INTERNAL HELPER FUNCTIONS (not exported)
+%%-------------------------------------------------------------------------
+
+match_and_collect(Tlv, TagsIn) ->
+ Val = match_tags(Tlv, TagsIn),
+ case Val of
+ [_|_]=PartList -> % constructed val
+ collect_parts(PartList);
+ Bin when is_binary(Bin) ->
+ Bin
+ end.
+
+get_constraint(C, Key) ->
+ case lists:keyfind(Key, 1, C) of
+ false ->
+ no;
+ {_,V} ->
+ V
+ end.
+
+collect_parts(TlvList) ->
+ collect_parts(TlvList, []).
+
+collect_parts([{_,L}|Rest], Acc) when is_list(L) ->
+ collect_parts(Rest, [collect_parts(L)|Acc]);
+collect_parts([{?N_BIT_STRING,<<Unused,Bits/binary>>}|Rest], _Acc) ->
+ collect_parts_bit(Rest, [Bits], Unused);
+collect_parts([{_T,V}|Rest], Acc) ->
+ collect_parts(Rest, [V|Acc]);
+collect_parts([], Acc) ->
+ list_to_binary(lists:reverse(Acc)).
+
+collect_parts_bit([{?N_BIT_STRING,<<Unused,Bits/binary>>}|Rest], Acc, Uacc) ->
+ collect_parts_bit(Rest, [Bits|Acc], Unused+Uacc);
+collect_parts_bit([], Acc, Uacc) ->
+ list_to_binary([Uacc|lists:reverse(Acc)]).
diff --git a/lib/asn1/src/asn1rtt_check.erl b/lib/asn1/src/asn1rtt_check.erl
new file mode 100644
index 0000000000..e78b65a8fb
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_check.erl
@@ -0,0 +1,276 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(asn1rtt_check).
+
+-export([check_bool/2,
+ check_int/3,
+ check_bitstring/3,
+ check_octetstring/2,
+ check_null/2,
+ check_objectidentifier/2,
+ check_objectdescriptor/2,
+ check_real/2,
+ check_enum/3,
+ check_restrictedstring/2]).
+
+check_bool(_Bool, asn1_DEFAULT) ->
+ true;
+check_bool(Bool, Bool) when is_boolean(Bool) ->
+ true;
+check_bool(_Bool1, Bool2) ->
+ throw({error,Bool2}).
+
+check_int(_, asn1_DEFAULT, _) ->
+ true;
+check_int(Value, Value, _) when is_integer(Value) ->
+ true;
+check_int(DefValue, Value, NNL) when is_atom(Value) ->
+ case lists:keyfind(Value, 1, NNL) of
+ {_,DefValue} ->
+ true;
+ _ ->
+ throw({error,DefValue})
+ end;
+check_int(DefaultValue, _Value, _) ->
+ throw({error,DefaultValue}).
+
+%% Two equal lists or integers
+check_bitstring(_, asn1_DEFAULT, _) ->
+ true;
+check_bitstring(V, V, _) ->
+ true;
+%% Default value as a list of 1 and 0 and user value as an integer
+check_bitstring(L=[H|T], Int, _) when is_integer(Int), is_integer(H) ->
+ case bit_list_to_int(L, length(T)) of
+ Int -> true;
+ _ -> throw({error,L,Int})
+ end;
+%% Default value as an integer, val as list
+check_bitstring(Int, Val, NBL) when is_integer(Int), is_list(Val) ->
+ BL = int_to_bit_list(Int, [], length(Val)),
+ check_bitstring(BL, Val, NBL);
+%% Default value and user value as lists of ones and zeros
+check_bitstring(L1=[H1|_T1], L2=[H2|_T2], NBL=[_H|_T]) when is_integer(H1), is_integer(H2) ->
+ L2new = remove_trailing_zeros(L2),
+ check_bitstring(L1, L2new, NBL);
+%% Default value as a list of 1 and 0 and user value as a list of atoms
+check_bitstring(L1=[H1|_T1], L2=[H2|_T2], NBL) when is_integer(H1), is_atom(H2) ->
+ L3 = bit_list_to_nbl(L1, NBL, 0, []),
+ check_bitstring(L3, L2, NBL);
+%% Both default value and user value as a list of atoms
+check_bitstring(L1=[H1|T1], L2=[H2|_T2], _)
+ when is_atom(H1), is_atom(H2), length(L1) =:= length(L2) ->
+ case lists:member(H1, L2) of
+ true ->
+ check_bitstring1(T1, L2);
+ false -> throw({error,L2})
+ end;
+%% Default value as a list of atoms and user value as a list of 1 and 0
+check_bitstring(L1=[H1|_T1], L2=[H2|_T2], NBL) when is_atom(H1), is_integer(H2) ->
+ L3 = bit_list_to_nbl(L2, NBL, 0, []),
+ check_bitstring(L1, L3, NBL);
+%% User value in compact format
+check_bitstring(DefVal,CBS={_,_}, NBL) ->
+ NewVal = cbs_to_bit_list(CBS),
+ check_bitstring(DefVal, NewVal, NBL);
+check_bitstring(DV, V, _) ->
+ throw({error,DV,V}).
+
+
+bit_list_to_int([0|Bs], ShL)->
+ bit_list_to_int(Bs, ShL-1) + 0;
+bit_list_to_int([1|Bs], ShL) ->
+ bit_list_to_int(Bs, ShL-1) + (1 bsl ShL);
+bit_list_to_int([], _) ->
+ 0.
+
+int_to_bit_list(0, Acc, 0) ->
+ Acc;
+int_to_bit_list(Int, Acc, Len) ->
+ int_to_bit_list(Int bsr 1, [Int band 1|Acc], Len - 1).
+
+bit_list_to_nbl([0|T], NBL, Pos, Acc) ->
+ bit_list_to_nbl(T, NBL, Pos+1, Acc);
+bit_list_to_nbl([1|T], NBL, Pos, Acc) ->
+ case lists:keyfind(Pos, 2, NBL) of
+ {N,_} ->
+ bit_list_to_nbl(T, NBL, Pos+1, [N|Acc]);
+ _ ->
+ throw({error,{no,named,element,at,pos,Pos}})
+ end;
+bit_list_to_nbl([], _, _, Acc) ->
+ Acc.
+
+remove_trailing_zeros(L2) ->
+ remove_trailing_zeros1(lists:reverse(L2)).
+remove_trailing_zeros1(L) ->
+ lists:reverse(lists:dropwhile(fun(0)->true;
+ (_) ->false
+ end,
+ L)).
+
+check_bitstring1([H|T], NBL) ->
+ case lists:member(H, NBL) of
+ true -> check_bitstring1(T, NBL);
+ V -> throw({error,V})
+ end;
+check_bitstring1([], _) ->
+ true.
+
+cbs_to_bit_list({Unused, <<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1,Rest/binary>>}) when byte_size(Rest) >= 1 ->
+ [B7,B6,B5,B4,B3,B2,B1,B0|cbs_to_bit_list({Unused,Rest})];
+cbs_to_bit_list({0,<<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1>>}) ->
+ [B7,B6,B5,B4,B3,B2,B1,B0];
+cbs_to_bit_list({Unused,Bin}) when byte_size(Bin) =:= 1 ->
+ Used = 8-Unused,
+ <<Int:Used,_:Unused>> = Bin,
+ int_to_bit_list(Int, [], Used).
+
+
+check_octetstring(_, asn1_DEFAULT) ->
+ true;
+check_octetstring(L, L) ->
+ true;
+check_octetstring(L, Int) when is_list(L), is_integer(Int) ->
+ case integer_to_octetlist(Int) of
+ L -> true;
+ V -> throw({error,V})
+ end;
+check_octetstring(_, V) ->
+ throw({error,V}).
+
+integer_to_octetlist(Int) ->
+ integer_to_octetlist(Int, []).
+integer_to_octetlist(0, Acc) ->
+ Acc;
+integer_to_octetlist(Int, Acc) ->
+ integer_to_octetlist(Int bsr 8, [(Int band 255)|Acc]).
+
+check_null(_, asn1_DEFAULT) ->
+ true;
+check_null('NULL', 'NULL') ->
+ true;
+check_null(_, V) ->
+ throw({error,V}).
+
+check_objectidentifier(_, asn1_DEFAULT) ->
+ true;
+check_objectidentifier(OI, OI) ->
+ true;
+check_objectidentifier(DOI, OI) when is_tuple(DOI), is_tuple(OI) ->
+ check_objectidentifier1(tuple_to_list(DOI), tuple_to_list(OI));
+check_objectidentifier(_, OI) ->
+ throw({error,OI}).
+
+check_objectidentifier1([V|Rest1], [V|Rest2]) ->
+ check_objectidentifier1(Rest1, Rest2, V);
+check_objectidentifier1([V1|Rest1], [V2|Rest2]) ->
+ case reserved_objectid(V2, []) of
+ V1 ->
+ check_objectidentifier1(Rest1, Rest2, [V1]);
+ V ->
+ throw({error,V})
+ end.
+check_objectidentifier1([V|Rest1], [V|Rest2], Above) ->
+ check_objectidentifier1(Rest1, Rest2, [V|Above]);
+check_objectidentifier1([V1|Rest1], [V2|Rest2], Above) ->
+ case reserved_objectid(V2, Above) of
+ V1 ->
+ check_objectidentifier1(Rest1, Rest2, [V1|Above]);
+ V ->
+ throw({error,V})
+ end;
+check_objectidentifier1([], [], _) ->
+ true;
+check_objectidentifier1(_, V, _) ->
+ throw({error,object,identifier,V}).
+
+%% ITU-T Rec. X.680 Annex B - D
+reserved_objectid('itu-t', []) -> 0;
+reserved_objectid('ccitt', []) -> 0;
+%% arcs below "itu-t"
+reserved_objectid('recommendation', [0]) -> 0;
+reserved_objectid('question', [0]) -> 1;
+reserved_objectid('administration', [0]) -> 2;
+reserved_objectid('network-operator', [0]) -> 3;
+reserved_objectid('identified-organization', [0]) -> 4;
+
+reserved_objectid(iso, []) -> 1;
+%% arcs below "iso", note that number 1 is not used
+reserved_objectid('standard', [1]) -> 0;
+reserved_objectid('member-body', [1]) -> 2;
+reserved_objectid('identified-organization', [1]) -> 3;
+
+reserved_objectid('joint-iso-itu-t', []) -> 2;
+reserved_objectid('joint-iso-ccitt', []) -> 2;
+
+reserved_objectid(_, _) -> false.
+
+
+check_objectdescriptor(_, asn1_DEFAULT) ->
+ true;
+check_objectdescriptor(OD, OD) ->
+ true;
+check_objectdescriptor(OD, OD) ->
+ throw({error,{not_implemented_yet,check_objectdescriptor}}).
+
+check_real(_, asn1_DEFAULT) ->
+ true;
+check_real(R, R) ->
+ true;
+check_real(_, _) ->
+ throw({error,{not_implemented_yet,check_real}}).
+
+check_enum(_, asn1_DEFAULT, _) ->
+ true;
+check_enum(Val, Val, _) ->
+ true;
+check_enum(Int, Atom, Enumerations) when is_integer(Int), is_atom(Atom) ->
+ case lists:keyfind(Atom, 1, Enumerations) of
+ {_,Int} -> true;
+ _ -> throw({error,{enumerated,Int,Atom}})
+ end;
+check_enum(DefVal, Val, _) ->
+ throw({error,{enumerated,DefVal,Val}}).
+
+
+check_restrictedstring(_, asn1_DEFAULT) ->
+ true;
+check_restrictedstring(Val, Val) ->
+ true;
+check_restrictedstring([V|Rest1], [V|Rest2]) ->
+ check_restrictedstring(Rest1, Rest2);
+check_restrictedstring([V1|Rest1], [V2|Rest2]) ->
+ check_restrictedstring(V1, V2),
+ check_restrictedstring(Rest1, Rest2);
+%% tuple format of value
+check_restrictedstring({V1,V2}, [V1,V2]) ->
+ true;
+check_restrictedstring([V1,V2], {V1,V2}) ->
+ true;
+%% quadruple format of value
+check_restrictedstring({V1,V2,V3,V4}, [V1,V2,V3,V4]) ->
+ true;
+check_restrictedstring([V1,V2,V3,V4], {V1,V2,V3,V4}) ->
+ true;
+%% character string list
+check_restrictedstring(V1, V2) when is_list(V1), is_tuple(V2) ->
+ check_restrictedstring(V1, tuple_to_list(V2));
+check_restrictedstring(V1, V2) ->
+ throw({error,{restricted,string,V1,V2}}).
diff --git a/lib/asn1/src/asn1rtt_ext.erl b/lib/asn1/src/asn1rtt_ext.erl
new file mode 100644
index 0000000000..7510b01f17
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_ext.erl
@@ -0,0 +1,72 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(asn1rtt_ext).
+-export([transform_to_EXTERNAL1990/1,transform_to_EXTERNAL1994/1]).
+
+transform_to_EXTERNAL1990({_,_,_,_}=Val) ->
+ transform_to_EXTERNAL1990(tuple_to_list(Val), []);
+transform_to_EXTERNAL1990(Val) when is_tuple(Val) ->
+ %% Data already in ASN1 1990 format
+ Val.
+
+transform_to_EXTERNAL1990(['EXTERNAL'|Rest], Acc) ->
+ transform_to_EXTERNAL1990(Rest, ['EXTERNAL'|Acc]);
+transform_to_EXTERNAL1990([{syntax,Syntax}|Rest], Acc) ->
+ transform_to_EXTERNAL1990(Rest, [asn1_NOVALUE,Syntax|Acc]);
+transform_to_EXTERNAL1990([{'presentation-context-id',PCid}|Rest], Acc) ->
+ transform_to_EXTERNAL1990(Rest, [PCid,asn1_NOVALUE|Acc]);
+transform_to_EXTERNAL1990([{'context-negotiation',Context_negot}|Rest], Acc) ->
+ {_,Presentation_Cid,Transfer_syntax} = Context_negot,
+ transform_to_EXTERNAL1990(Rest, [Presentation_Cid,Transfer_syntax|Acc]);
+transform_to_EXTERNAL1990([asn1_NOVALUE|Rest], Acc) ->
+ transform_to_EXTERNAL1990(Rest, [asn1_NOVALUE|Acc]);
+transform_to_EXTERNAL1990([Data_val_desc,Data_value], Acc)
+ when is_list(Data_value)->
+ list_to_tuple(lists:reverse([{'octet-aligned',Data_value},
+ Data_val_desc|Acc]));
+transform_to_EXTERNAL1990([Data_val_desc,Data_value], Acc)
+ when is_binary(Data_value) ->
+ list_to_tuple(lists:reverse([{'single-ASN1-type',Data_value},
+ Data_val_desc|Acc]));
+transform_to_EXTERNAL1990([Data_value], Acc)
+ when is_list(Data_value); is_binary(Data_value) ->
+ list_to_tuple(lists:reverse([{'octet-aligned',Data_value}|Acc])).
+
+
+transform_to_EXTERNAL1994({'EXTERNAL',DRef,IndRef,Data_v_desc,Encoding}=V) ->
+ Identification =
+ case {DRef,IndRef} of
+ {DRef,asn1_NOVALUE} ->
+ {syntax,DRef};
+ {asn1_NOVALUE,IndRef} ->
+ {'presentation-context-id',IndRef};
+ _ ->
+ {'context-negotiation',
+ {'EXTERNAL_identification_context-negotiation',IndRef,DRef}}
+ end,
+ case Encoding of
+ {'octet-aligned',Val} when is_list(Val); is_binary(Val) ->
+ %% Transform to the EXTERNAL 1994 definition.
+ {'EXTERNAL',Identification,Data_v_desc,Val};
+ _ ->
+ %% Keep the EXTERNAL 1990 definition to avoid losing
+ %% information.
+ V
+ end.
diff --git a/lib/asn1/src/asn1rtt_per.erl b/lib/asn1/src/asn1rtt_per.erl
new file mode 100644
index 0000000000..4713125ffc
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_per.erl
@@ -0,0 +1,976 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(asn1rtt_per).
+
+-export([setext/1, fixextensions/2,
+ skipextensions/3, getbit/1, getchoice/3,
+ set_choice/3,encode_integer/2,
+ encode_small_number/1,
+ encode_constrained_number/2,
+ encode_length/1,
+ encode_length/2,
+ encode_bit_string/3,
+ encode_object_identifier/1,
+ encode_relative_oid/1,
+ complete/1,
+ encode_open_type/1,
+ encode_GeneralString/2,
+ encode_GraphicString/2,
+ encode_TeletexString/2,
+ encode_VideotexString/2,
+ encode_ObjectDescriptor/2,
+ encode_UTF8String/1,
+ encode_octet_string/3,
+ encode_known_multiplier_string/4,
+ octets_to_complete/2]).
+
+-define('16K',16384).
+-define('32K',32768).
+-define('64K',65536).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% setext(true|false) -> CompleteList
+%%
+
+setext(false) ->
+ [0];
+setext(true) ->
+ [1].
+
+fixextensions({ext,ExtPos,ExtNum},Val) ->
+ case fixextensions(ExtPos,ExtNum+ExtPos,Val,0) of
+ 0 -> [];
+ ExtBits ->
+ [encode_small_length(ExtNum)|pre_complete_bits(ExtNum,ExtBits)]
+ end.
+
+fixextensions(Pos,MaxPos,_,Acc) when Pos >= MaxPos ->
+ Acc;
+fixextensions(Pos,ExtPos,Val,Acc) ->
+ Bit = case catch(element(Pos+1,Val)) of
+ asn1_NOVALUE ->
+ 0;
+ asn1_NOEXTVALUE ->
+ 0;
+ {'EXIT',_} ->
+ 0;
+ _ ->
+ 1
+ end,
+ fixextensions(Pos+1,ExtPos,Val,(Acc bsl 1)+Bit).
+
+skipextensions(Bytes0, Nr, ExtensionBitstr) when is_bitstring(ExtensionBitstr) ->
+ Prev = Nr - 1,
+ case ExtensionBitstr of
+ <<_:Prev,1:1,_/bitstring>> ->
+ {Len,Bytes1} = decode_length(Bytes0),
+ <<_:Len/binary,Bytes2/bitstring>> = Bytes1,
+ skipextensions(Bytes2, Nr+1, ExtensionBitstr);
+ <<_:Prev,0:1,_/bitstring>> ->
+ skipextensions(Bytes0, Nr+1, ExtensionBitstr);
+ _ ->
+ Bytes0
+ end.
+
+
+getchoice(Bytes, 1, 0) -> % only 1 alternative is not encoded
+ {0,Bytes};
+getchoice(Bytes, _, 1) ->
+ decode_small_number(Bytes);
+getchoice(Bytes, NumChoices, 0) ->
+ decode_constrained_number(Bytes, {0,NumChoices-1}).
+
+
+getbit(Buffer) ->
+ <<B:1,Rest/bitstring>> = Buffer,
+ {B,Rest}.
+
+getbits(Buffer, Num) when is_bitstring(Buffer) ->
+ <<Bs:Num,Rest/bitstring>> = Buffer,
+ {Bs,Rest}.
+
+align(Bin) when is_binary(Bin) ->
+ Bin;
+align(BitStr) when is_bitstring(BitStr) ->
+ AlignBits = bit_size(BitStr) rem 8,
+ <<_:AlignBits,Rest/binary>> = BitStr,
+ Rest.
+
+
+%% First align buffer, then pick the first Num octets.
+%% Returns octets as an integer with bit significance as in buffer.
+getoctets(Buffer, Num) when is_binary(Buffer) ->
+ <<Val:Num/integer-unit:8,RestBin/binary>> = Buffer,
+ {Val,RestBin};
+getoctets(Buffer, Num) when is_bitstring(Buffer) ->
+ AlignBits = bit_size(Buffer) rem 8,
+ <<_:AlignBits,Val:Num/integer-unit:8,RestBin/binary>> = Buffer,
+ {Val,RestBin}.
+
+
+%% First align buffer, then pick the first Num octets.
+%% Returns octets as a binary
+getoctets_as_bin(Bin,Num) when is_binary(Bin) ->
+ <<Octets:Num/binary,RestBin/binary>> = Bin,
+ {Octets,RestBin};
+getoctets_as_bin(Bin,Num) when is_bitstring(Bin) ->
+ AlignBits = bit_size(Bin) rem 8,
+ <<_:AlignBits,Val:Num/binary,RestBin/binary>> = Bin,
+ {Val,RestBin}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% set_choice(Alt,Choices,Altnum) -> ListofBitSettings
+%% Alt = atom()
+%% Altnum = integer() | {integer(),integer()}% number of alternatives
+%% Choices = [atom()] | {[atom()],[atom()]}
+%% When Choices is a tuple the first list is the Rootset and the
+%% second is the Extensions and then Altnum must also be a tuple with the
+%% lengths of the 2 lists
+%%
+set_choice(Alt,{L1,L2},{Len1,_Len2}) ->
+ case set_choice_tag(Alt,L1) of
+ N when is_integer(N), Len1 > 1 ->
+ [0, % the value is in the root set
+ encode_constrained_number({0,Len1-1},N)];
+ N when is_integer(N) ->
+ [0]; % no encoding if only 0 or 1 alternative
+ false ->
+ [1, % extension value
+ case set_choice_tag(Alt, L2) of
+ N2 when is_integer(N2) ->
+ encode_small_number(N2);
+ false ->
+ unknown_choice_alt
+ end]
+ end;
+set_choice(Alt, L, Len) ->
+ case set_choice_tag(Alt, L) of
+ N when is_integer(N), Len > 1 ->
+ encode_constrained_number({0,Len-1},N);
+ N when is_integer(N) ->
+ []; % no encoding if only 0 or 1 alternative
+ false ->
+ [unknown_choice_alt]
+ end.
+
+set_choice_tag(Alt,Choices) ->
+ set_choice_tag(Alt,Choices,0).
+
+set_choice_tag(Alt,[Alt|_Rest],Tag) ->
+ Tag;
+set_choice_tag(Alt,[_H|Rest],Tag) ->
+ set_choice_tag(Alt,Rest,Tag+1);
+set_choice_tag(_Alt,[],_Tag) ->
+ false.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_open_type(Constraint, Value) -> CompleteList
+%% Value = list of bytes of an already encoded value (the list must be flat)
+%% | binary
+%% Contraint = not used in this version
+%%
+encode_open_type(Val) when is_list(Val) ->
+ Bin = list_to_binary(Val),
+ case byte_size(Bin) of
+ Size when Size > 255 ->
+ [encode_length(Size),21,<<Size:16>>,Bin];
+ Size ->
+ [encode_length(Size),20,Size,Bin]
+ end;
+encode_open_type(Val) when is_binary(Val) ->
+ case byte_size(Val) of
+ Size when Size > 255 ->
+ [encode_length(Size),21,<<Size:16>>,Val]; % octets implies align
+ Size ->
+ [encode_length(Size),20,Size,Val]
+ end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_integer(Constraint, Value) -> CompleteList
+%%
+encode_integer([{Rc,_Ec}],Val) when is_tuple(Rc) ->
+ try
+ [0|encode_integer([Rc], Val)]
+ catch
+ _:{error,{asn1,_}} ->
+ [1|encode_unconstrained_number(Val)]
+ end;
+encode_integer([], Val) ->
+ encode_unconstrained_number(Val);
+%% The constraint is the effective constraint, and in this case is a number
+encode_integer([{'SingleValue',V}], V) ->
+ [];
+encode_integer([{'ValueRange',{Lb,Ub}=VR,Range,PreEnc}],Val)
+ when Val >= Lb, Ub >= Val ->
+ %% this case when NamedNumberList
+ encode_constrained_number(VR, Range, PreEnc, Val);
+encode_integer([{'ValueRange',{Lb,'MAX'}}], Val) ->
+ encode_semi_constrained_number(Lb, Val);
+encode_integer([{'ValueRange',{'MIN',_}}], Val) ->
+ encode_unconstrained_number(Val);
+encode_integer([{'ValueRange',VR={_Lb,_Ub}}], Val) ->
+ encode_constrained_number(VR, Val);
+encode_integer(_,Val) ->
+ exit({error,{asn1,{illegal_value,Val}}}).
+
+
+%% X.691:10.6 Encoding of a normally small non-negative whole number
+%% Use this for encoding of CHOICE index if there is an extension marker in
+%% the CHOICE
+encode_small_number(Val) when Val < 64 ->
+ [10,7,Val];
+encode_small_number(Val) ->
+ [1|encode_semi_constrained_number(0, Val)].
+
+decode_small_number(Bytes) ->
+ {Bit,Bytes2} = getbit(Bytes),
+ case Bit of
+ 0 ->
+ getbits(Bytes2, 6);
+ 1 ->
+ decode_semi_constrained_number(Bytes2)
+ end.
+
+%% X.691:10.7 Encoding of a semi-constrained whole number
+encode_semi_constrained_number(Lb, Val) ->
+ Val2 = Val - Lb,
+ Oct = eint_positive(Val2),
+ Len = length(Oct),
+ if
+ Len < 128 ->
+ [20,Len+1,Len|Oct];
+ Len < 256 ->
+ [encode_length(Len),20,Len|Oct];
+ true ->
+ [encode_length(Len),21,<<Len:16>>|Oct]
+ end.
+
+decode_semi_constrained_number(Bytes) ->
+ {Len,Bytes2} = decode_length(Bytes),
+ getoctets(Bytes2, Len).
+
+encode_constrained_number({Lb,_Ub},_Range,{bits,N},Val) ->
+ Val2 = Val-Lb,
+ [10,N,Val2];
+encode_constrained_number({Lb,_Ub},_Range,{octets,N},Val) when N < 256->
+ %% N is 8 or 16 (1 or 2 octets)
+ Val2 = Val-Lb,
+ [20,N,Val2];
+encode_constrained_number({Lb,_Ub},_Range,{octets,N},Val) -> % N>255
+ %% N is 8 or 16 (1 or 2 octets)
+ Val2 = Val-Lb,
+ [21,<<N:16>>,Val2];
+encode_constrained_number({Lb,_Ub},Range,_,Val) ->
+ Val2 = Val-Lb,
+ if
+ Range =< 16#1000000 -> % max 3 octets
+ Octs = eint_positive(Val2),
+ L = length(Octs),
+ [encode_length({1,3},L),[20,L,Octs]];
+ Range =< 16#100000000 -> % max 4 octets
+ Octs = eint_positive(Val2),
+ L = length(Octs),
+ [encode_length({1,4},L),[20,L,Octs]];
+ Range =< 16#10000000000 -> % max 5 octets
+ Octs = eint_positive(Val2),
+ L = length(Octs),
+ [encode_length({1,5},L),[20,L,Octs]];
+ true ->
+ exit({not_supported,{integer_range,Range}})
+ end.
+
+encode_constrained_number({Lb,Ub}, Val) when Val >= Lb, Ub >= Val ->
+ Range = Ub - Lb + 1,
+ Val2 = Val - Lb,
+ if
+ Range == 1 -> [];
+ Range == 2 ->
+ [Val2];
+ Range =< 4 ->
+ [10,2,Val2];
+ Range =< 8 ->
+ [10,3,Val2];
+ Range =< 16 ->
+ [10,4,Val2];
+ Range =< 32 ->
+ [10,5,Val2];
+ Range =< 64 ->
+ [10,6,Val2];
+ Range =< 128 ->
+ [10,7,Val2];
+ Range =< 255 ->
+ [10,8,Val2];
+ Range =< 256 ->
+ [20,1,Val2];
+ Range =< 65536 ->
+ [20,2,<<Val2:16>>];
+ Range =< (1 bsl (255*8)) ->
+ Octs = binary:encode_unsigned(Val2),
+ RangeOcts = binary:encode_unsigned(Range - 1),
+ OctsLen = byte_size(Octs),
+ RangeOctsLen = byte_size(RangeOcts),
+ LengthBitsNeeded = minimum_bits(RangeOctsLen - 1),
+ [10,LengthBitsNeeded,OctsLen-1,20,OctsLen,Octs];
+ true ->
+ exit({not_supported,{integer_range,Range}})
+ end;
+encode_constrained_number({_,_},Val) ->
+ exit({error,{asn1,{illegal_value,Val}}}).
+
+decode_constrained_number(Buffer,VR={Lb,Ub}) ->
+ Range = Ub - Lb + 1,
+ decode_constrained_number(Buffer,VR,Range).
+
+decode_constrained_number(Buffer,{Lb,_Ub},Range) ->
+ % Val2 = Val - Lb,
+ {Val,Remain} =
+ if
+ Range == 1 ->
+ {0,Buffer};
+ Range == 2 ->
+ getbits(Buffer,1);
+ Range =< 4 ->
+ getbits(Buffer,2);
+ Range =< 8 ->
+ getbits(Buffer,3);
+ Range =< 16 ->
+ getbits(Buffer,4);
+ Range =< 32 ->
+ getbits(Buffer,5);
+ Range =< 64 ->
+ getbits(Buffer,6);
+ Range =< 128 ->
+ getbits(Buffer,7);
+ Range =< 255 ->
+ getbits(Buffer,8);
+ Range =< 256 ->
+ getoctets(Buffer,1);
+ Range =< 65536 ->
+ getoctets(Buffer,2);
+ Range =< (1 bsl (255*8)) ->
+ OList = binary:bin_to_list(binary:encode_unsigned(Range - 1)),
+ RangeOctLen = length(OList),
+ {Len, Bytes} = decode_length(Buffer, {1, RangeOctLen}),
+ {Octs, RestBytes} = getoctets_as_bin(Bytes, Len),
+ {binary:decode_unsigned(Octs), RestBytes};
+ true ->
+ exit({not_supported,{integer_range,Range}})
+ end,
+ {Val+Lb,Remain}.
+
+%% For some reason the minimum bits needed in the length field in
+%% the encoding of constrained whole numbers must always be at least 2?
+minimum_bits(N) when N < 4 -> 2;
+minimum_bits(N) when N < 8 -> 3;
+minimum_bits(N) when N < 16 -> 4;
+minimum_bits(N) when N < 32 -> 5;
+minimum_bits(N) when N < 64 -> 6;
+minimum_bits(N) when N < 128 -> 7;
+minimum_bits(_N) -> 8.
+
+%% X.691:10.8 Encoding of an unconstrained whole number
+
+encode_unconstrained_number(Val) ->
+ Oct = if
+ Val >= 0 ->
+ eint(Val, []);
+ true ->
+ enint(Val, [])
+ end,
+ Len = length(Oct),
+ if
+ Len < 128 ->
+ [20,Len + 1,Len|Oct];
+ Len < 256 ->
+ [20,Len + 2,<<2:2,Len:14>>|Oct];
+ true ->
+ [encode_length(Len),21,<<Len:16>>|Oct]
+ end.
+
+%% used for positive Values which don't need a sign bit
+%% returns a list
+eint_positive(Val) ->
+ case eint(Val,[]) of
+ [0,B1|T] ->
+ [B1|T];
+ T ->
+ T
+ end.
+
+
+eint(0, [B|Acc]) when B < 128 ->
+ [B|Acc];
+eint(N, Acc) ->
+ eint(N bsr 8, [N band 16#ff| Acc]).
+
+enint(-1, [B1|T]) when B1 > 127 ->
+ [B1|T];
+enint(N, Acc) ->
+ enint(N bsr 8, [N band 16#ff|Acc]).
+
+%% X.691:10.9 Encoding of a length determinant
+%%encode_small_length(undefined,Len) -> % null means no UpperBound
+%% encode_small_number(Len).
+
+%% X.691:10.9.3.5
+%% X.691:10.9.3.7
+encode_length(Len) -> % unconstrained
+ if
+ Len < 128 ->
+ [20,1,Len];
+ Len < 16384 ->
+ <<20,2,2:2,Len:14>>;
+ true -> % should be able to endode length >= 16384 i.e. fragmented length
+ exit({error,{asn1,{encode_length,{nyi,above_16k}}}})
+ end.
+
+encode_length(undefined, Len) -> % un-constrained
+ encode_length(Len);
+encode_length({0,'MAX'},Len) ->
+ encode_length(undefined,Len);
+encode_length({Lb,Ub}=Vr, Len) when Ub =< 65535 ,Lb >= 0 -> % constrained
+ encode_constrained_number(Vr,Len);
+encode_length({Lb,_Ub}, Len) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
+ encode_length(Len);
+encode_length({{Lb,Ub}=Vr,Ext}, Len)
+ when Ub =< 65535 ,Lb >= 0,Len=<Ub, is_list(Ext) ->
+ %% constrained extensible
+ [0|encode_constrained_number(Vr,Len)];
+encode_length({{Lb,_},Ext},Len) when is_list(Ext) ->
+ [1|encode_semi_constrained_number(Lb, Len)];
+encode_length(SingleValue, _Len) when is_integer(SingleValue) ->
+ [].
+
+%% X.691 10.9.3.4 (only used for length of bitmap that prefixes extension
+%% additions in a sequence or set
+encode_small_length(Len) when Len =< 64 ->
+ [10,7,Len-1];
+encode_small_length(Len) ->
+ [1,encode_length(Len)].
+
+
+decode_length(Buffer) -> % un-constrained
+ case align(Buffer) of
+ <<0:1,Oct:7,Rest/binary>> ->
+ {Oct,Rest};
+ <<2:2,Val:14,Rest/binary>> ->
+ {Val,Rest};
+ <<3:2,_Val:14,_Rest/binary>> ->
+ %% this case should be fixed
+ exit({error,{asn1,{decode_length,{nyi,above_16k}}}})
+ end.
+
+decode_length(Buffer, {Lb,Ub}) when Ub =< 65535, Lb >= 0 -> % constrained
+ decode_constrained_number(Buffer, {Lb,Ub});
+decode_length(Buffer, {Lb,_Ub}) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
+ decode_length(Buffer).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% bitstring NamedBitList
+%% Val can be of:
+%% - [identifiers] where only named identifers are set to one,
+%% the Constraint must then have some information of the
+%% bitlength.
+%% - [list of ones and zeroes] all bits
+%% - integer value representing the bitlist
+%% C is constraint Len, only valid when identifiers
+
+
+%% when the value is a list of {Unused,BinBits}, where
+%% Unused = integer(),
+%% BinBits = binary().
+
+encode_bit_string(C, Bits, NamedBitList) when is_bitstring(Bits) ->
+ PadLen = (8 - (bit_size(Bits) band 7)) band 7,
+ Compact = {PadLen,<<Bits/bitstring,0:PadLen>>},
+ encode_bin_bit_string(C, Compact, NamedBitList);
+encode_bit_string(C, {Unused,BinBits}=Bin, NamedBitList)
+ when is_integer(Unused), is_binary(BinBits) ->
+ encode_bin_bit_string(C,Bin,NamedBitList);
+
+%% when the value is a list of named bits
+
+encode_bit_string(C, LoNB=[FirstVal | _RestVal], NamedBitList) when is_atom(FirstVal) ->
+ ToSetPos = get_all_bitposes(LoNB, NamedBitList, []),
+ BitList = make_and_set_list(ToSetPos,0),
+ encode_bit_string(C,BitList,NamedBitList);% consider the constraint
+
+encode_bit_string(C, BL=[{bit,_} | _RestVal], NamedBitList) ->
+ ToSetPos = get_all_bitposes(BL, NamedBitList, []),
+ BitList = make_and_set_list(ToSetPos,0),
+ encode_bit_string(C,BitList,NamedBitList);
+
+%% when the value is a list of ones and zeroes
+encode_bit_string(Int, BitListValue, _)
+ when is_list(BitListValue),is_integer(Int),Int =< 16 ->
+ %% The type is constrained by a single value size constraint
+ %% range_check(Int,length(BitListValue)),
+ [40,Int,length(BitListValue),BitListValue];
+encode_bit_string(Int, BitListValue, _)
+ when is_list(BitListValue),is_integer(Int), Int =< 255 ->
+ %% The type is constrained by a single value size constraint
+ %% range_check(Int,length(BitListValue)),
+ [2,40,Int,length(BitListValue),BitListValue];
+encode_bit_string(Int, BitListValue, _)
+ when is_list(BitListValue),is_integer(Int), Int < ?'64K' ->
+ {Code,DesiredLength,Length} =
+ case length(BitListValue) of
+ B1 when B1 > Int ->
+ exit({error,{'BIT_STRING_length_greater_than_SIZE',
+ Int,BitListValue}});
+ B1 when B1 =< 255,Int =< 255 ->
+ {40,Int,B1};
+ B1 when B1 =< 255 ->
+ {42,<<Int:16>>,B1};
+ B1 ->
+ {43,<<Int:16>>,<<B1:16>>}
+ end,
+ %% The type is constrained by a single value size constraint
+ [2,Code,DesiredLength,Length,BitListValue];
+encode_bit_string(no, BitListValue,[])
+ when is_list(BitListValue) ->
+ [encode_length(length(BitListValue)),
+ 2|BitListValue];
+encode_bit_string({{Fix,Fix},Ext}, BitListValue,[])
+ when is_integer(Fix), is_list(Ext) ->
+ case length(BitListValue) of
+ Len when Len =< Fix ->
+ [0|encode_bit_string(Fix, BitListValue, [])];
+ _ ->
+ [1|encode_bit_string(no, BitListValue, [])]
+ end;
+encode_bit_string(C, BitListValue,[])
+ when is_list(BitListValue) ->
+ [encode_length(C, length(BitListValue)),
+ 2|BitListValue];
+encode_bit_string(no, BitListValue,_NamedBitList)
+ when is_list(BitListValue) ->
+ %% this case with an unconstrained BIT STRING can be made more efficient
+ %% if the complete driver can take a special code so the length field
+ %% is encoded there.
+ NewBitLVal = lists:reverse(lists:dropwhile(fun(0)->true;(1)->false end,
+ lists:reverse(BitListValue))),
+ [encode_length(length(NewBitLVal)),2|NewBitLVal];
+encode_bit_string({{Fix,Fix},Ext}, BitListValue, NamedBitList)
+ when is_integer(Fix), is_list(Ext) ->
+ case length(BitListValue) of
+ Len when Len =< Fix ->
+ [0|encode_bit_string(Fix, BitListValue, NamedBitList)];
+ _ ->
+ [1|encode_bit_string(no, BitListValue, NamedBitList)]
+ end;
+encode_bit_string(C, BitListValue, _NamedBitList)
+ when is_list(BitListValue) -> % C = {_,'MAX'}
+ NewBitLVal = bit_string_trailing_zeros(BitListValue, C),
+ [encode_length(C, length(NewBitLVal)),2|NewBitLVal];
+
+
+%% when the value is an integer
+encode_bit_string(C, IntegerVal, NamedBitList) when is_integer(IntegerVal)->
+ BitList = int_to_bitlist(IntegerVal),
+ encode_bit_string(C,BitList,NamedBitList).
+
+bit_string_trailing_zeros(BitList,C) when is_integer(C) ->
+ bit_string_trailing_zeros1(BitList,C,C);
+bit_string_trailing_zeros(BitList,{Lb,Ub}) when is_integer(Lb) ->
+ bit_string_trailing_zeros1(BitList,Lb,Ub);
+bit_string_trailing_zeros(BitList,{{Lb,Ub},_}) when is_integer(Lb) ->
+ bit_string_trailing_zeros1(BitList,Lb,Ub);
+bit_string_trailing_zeros(BitList,_) ->
+ BitList.
+
+bit_string_trailing_zeros1(BitList,Lb,Ub) ->
+ case length(BitList) of
+ Lb -> BitList;
+ B when B < Lb -> BitList++lists:duplicate(Lb-B, 0);
+ D -> F = fun(L,LB,LB,_,_)->lists:reverse(L);
+ ([0|R],L1,LB,UB,Fun)->Fun(R,L1-1,LB,UB,Fun);
+ (L,L1,_,UB,_)when L1 =< UB -> lists:reverse(L);
+ (_,_L1,_,_,_) ->exit({error,{list_length_BIT_STRING,
+ BitList}}) end,
+ F(lists:reverse(BitList),D,Lb,Ub,F)
+ end.
+
+%% encode_bin_bit_string/3, when value is a tuple of Unused and BinBits.
+%% Unused = integer(),i.e. number unused bits in least sign. byte of
+%% BinBits = binary().
+encode_bin_bit_string(C, {Unused,BinBits}, _NamedBitList)
+ when is_integer(C),C=<16 ->
+ range_check(C, bit_size(BinBits) - Unused),
+ [45,C,size(BinBits),BinBits];
+encode_bin_bit_string(C, {Unused,BinBits}, _NamedBitList)
+ when is_integer(C), C =< 255 ->
+ range_check(C, bit_size(BinBits) - Unused),
+ [2,45,C,size(BinBits),BinBits];
+encode_bin_bit_string(C, {Unused,BinBits}, _NamedBitList)
+ when is_integer(C), C =< 65535 ->
+ range_check(C, bit_size(BinBits) - Unused),
+ case byte_size(BinBits) of
+ Size when Size =< 255 ->
+ [2,46,<<C:16>>,Size,BinBits];
+ Size ->
+ [2,47,<<C:16>>,<<Size:16>>,BinBits]
+ end;
+encode_bin_bit_string(C,UnusedAndBin={_,_},NamedBitList) ->
+ {Unused1,Bin1} =
+ %% removes all trailing bits if NamedBitList is not empty
+ remove_trailing_bin(NamedBitList,UnusedAndBin),
+ case C of
+ {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
+ Size = byte_size(Bin1),
+ [encode_length({Lb,Ub}, Size*8 - Unused1),
+ 2,octets_unused_to_complete(Unused1,Size,Bin1)];
+ no ->
+ Size = byte_size(Bin1),
+ [encode_length(Size*8 - Unused1),
+ 2|octets_unused_to_complete(Unused1, Size, Bin1)];
+ {{Fix,Fix},Ext} when is_integer(Fix),is_list(Ext) ->
+ case byte_size(Bin1)*8 - Unused1 of
+ Size when Size =< Fix ->
+ [0|encode_bin_bit_string(Fix,UnusedAndBin,NamedBitList)];
+ _Size ->
+ [1|encode_bin_bit_string(no,UnusedAndBin,NamedBitList)]
+ end;
+ Sc ->
+ Size = byte_size(Bin1),
+ [encode_length(Sc, Size*8 - Unused1),
+ 2|octets_unused_to_complete(Unused1,Size,Bin1)]
+ end.
+
+range_check(C,C) when is_integer(C) ->
+ ok;
+range_check(C1,C2) when is_integer(C1) ->
+ exit({error,{asn1,{bit_string_out_of_range,{C1,C2}}}}).
+
+remove_trailing_bin([], {Unused,Bin}) ->
+ {Unused,Bin};
+remove_trailing_bin(_NamedNumberList,{_Unused,<<>>}) ->
+ {0,<<>>};
+remove_trailing_bin(NamedNumberList, {_Unused,Bin}) ->
+ Size = byte_size(Bin)-1,
+ <<Bfront:Size/binary, LastByte:8>> = Bin,
+ %% clear the Unused bits to be sure
+ Unused1 = trailingZeroesInNibble(LastByte band 15),
+ Unused2 =
+ case Unused1 of
+ 4 ->
+ 4 + trailingZeroesInNibble(LastByte bsr 4);
+ _ -> Unused1
+ end,
+ case Unused2 of
+ 8 ->
+ remove_trailing_bin(NamedNumberList,{0,Bfront});
+ _ ->
+ {Unused2,Bin}
+ end.
+
+
+trailingZeroesInNibble(0) ->
+ 4;
+trailingZeroesInNibble(1) ->
+ 0;
+trailingZeroesInNibble(2) ->
+ 1;
+trailingZeroesInNibble(3) ->
+ 0;
+trailingZeroesInNibble(4) ->
+ 2;
+trailingZeroesInNibble(5) ->
+ 0;
+trailingZeroesInNibble(6) ->
+ 1;
+trailingZeroesInNibble(7) ->
+ 0;
+trailingZeroesInNibble(8) ->
+ 3;
+trailingZeroesInNibble(9) ->
+ 0;
+trailingZeroesInNibble(10) ->
+ 1;
+trailingZeroesInNibble(11) ->
+ 0;
+trailingZeroesInNibble(12) -> %#1100
+ 2;
+trailingZeroesInNibble(13) ->
+ 0;
+trailingZeroesInNibble(14) ->
+ 1;
+trailingZeroesInNibble(15) ->
+ 0.
+
+
+%%%%%%%%%%%%%%%
+%%
+
+int_to_bitlist(Int) when is_integer(Int), Int > 0 ->
+ [Int band 1 | int_to_bitlist(Int bsr 1)];
+int_to_bitlist(0) ->
+ [].
+
+
+%%%%%%%%%%%%%%%%%%
+%% get_all_bitposes([list of named bits to set], named_bit_db, []) ->
+%% [sorted_list_of_bitpositions_to_set]
+
+get_all_bitposes([{bit,ValPos}|Rest], NamedBitList, Ack) ->
+ get_all_bitposes(Rest, NamedBitList, [ValPos | Ack ]);
+
+get_all_bitposes([Val | Rest], NamedBitList, Ack) ->
+ case lists:keyfind(Val, 1, NamedBitList) of
+ {_ValName, ValPos} ->
+ get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]);
+ false ->
+ exit({error,{asn1, {bitstring_namedbit, Val}}})
+ end;
+get_all_bitposes([], _NamedBitList, Ack) ->
+ lists:sort(Ack).
+
+%%%%%%%%%%%%%%%%%%
+%% make_and_set_list([list of positions to set to 1])->
+%% returns list with all in SetPos set.
+%% in positioning in list the first element is 0, the second 1 etc.., but
+%%
+
+make_and_set_list([XPos|SetPos], XPos) ->
+ [1 | make_and_set_list(SetPos, XPos + 1)];
+make_and_set_list([Pos|SetPos], XPos) ->
+ [0 | make_and_set_list([Pos | SetPos], XPos + 1)];
+make_and_set_list([], _) ->
+ [].
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% X.691:16
+%% encode_octet_string(Constraint,ExtensionMarker,Val)
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+encode_octet_string(_C, true, _Val) ->
+ exit({error,{asn1,{'not_supported',extensionmarker}}});
+encode_octet_string({_,_}=SZ, false, Val) ->
+ Len = length(Val),
+ try
+ [encode_length(SZ, Len),2|octets_to_complete(Len, Val)]
+ catch
+ exit:{error,{asn1,{encode_length,_}}} ->
+ encode_fragmented_octet_string(Val)
+ end;
+encode_octet_string(SZ, false, Val) when is_list(SZ) ->
+ Len = length(Val),
+ try
+ [encode_length({hd(SZ),lists:max(SZ)},Len),2|
+ octets_to_complete(Len,Val)]
+ catch
+ exit:{error,{asn1,{encode_length,_}}} ->
+ encode_fragmented_octet_string(Val)
+ end;
+encode_octet_string(Sv, false, Val) when is_integer(Sv) ->
+ encode_fragmented_octet_string(Val);
+encode_octet_string(no, false, Val) ->
+ Len = length(Val),
+ try
+ [encode_length(Len),2|octets_to_complete(Len, Val)]
+ catch
+ exit:{error,{asn1,{encode_length,_}}} ->
+ encode_fragmented_octet_string(Val)
+ end;
+encode_octet_string(C, _, _) ->
+ exit({error,{not_implemented,C}}).
+
+encode_fragmented_octet_string(Val) ->
+ Bin = iolist_to_binary(Val),
+ efos_1(Bin).
+
+efos_1(<<B1:16#C000/binary,B2:16#4000/binary,T/binary>>) ->
+ [20,1,<<3:2,4:6>>,
+ octets_to_complete(16#C000, B1),
+ octets_to_complete(16#4000, B2)|efos_1(T)];
+efos_1(<<B:16#C000/binary,T/binary>>) ->
+ [20,1,<<3:2,3:6>>,octets_to_complete(16#C000, B)|efos_1(T)];
+efos_1(<<B:16#8000/binary,T/binary>>) ->
+ [20,1,<<3:2,2:6>>,octets_to_complete(16#8000, B)|efos_1(T)];
+efos_1(<<B:16#4000/binary,T/binary>>) ->
+ [20,1,<<3:2,1:6>>,octets_to_complete(16#4000, B)|efos_1(T)];
+efos_1(<<>>) ->
+ [20,1,0];
+efos_1(<<B/bitstring>>) ->
+ Len = byte_size(B),
+ [encode_length(Len)|octets_to_complete(Len, B)].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Restricted char string types
+%% (NumericString, PrintableString,VisibleString,IA5String,BMPString,UniversalString)
+%% X.691:26 and X.680:34-36
+
+encode_restricted_string(Val) when is_list(Val)->
+ Len = length(Val),
+ [encode_length(Len)|octets_to_complete(Len, Val)].
+
+encode_known_multiplier_string(SizeC, NumBits, CharOutTab, Val) ->
+ Result = chars_encode2(Val, NumBits, CharOutTab),
+ case SizeC of
+ Ub when is_integer(Ub), Ub*NumBits =< 16 ->
+ Result;
+ Ub when is_integer(Ub), Ub =<65535 -> % fixed length
+ [2,Result];
+ {Ub,Lb} ->
+ [encode_length({Ub,Lb},length(Val)),2,Result];
+ no ->
+ [encode_length(length(Val)),2,Result]
+ end.
+
+encode_GeneralString(_C,Val) ->
+ encode_restricted_string(Val).
+
+encode_GraphicString(_C,Val) ->
+ encode_restricted_string(Val).
+
+encode_ObjectDescriptor(_C,Val) ->
+ encode_restricted_string(Val).
+
+encode_TeletexString(_C,Val) -> % equivalent with T61String
+ encode_restricted_string(Val).
+
+encode_VideotexString(_C,Val) ->
+ encode_restricted_string(Val).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% chars_encode(C,StringType,Value) -> ValueList
+%%
+%% encodes chars according to the per rules taking the constraint
+%% PermittedAlphabet into account.
+%%
+%% This function only encodes the value part and NOT the length.
+
+chars_encode2([H|T],NumBits,T1={Min,Max,notab}) when H =< Max, H >= Min ->
+ [pre_complete_bits(NumBits,H-Min)|chars_encode2(T,NumBits,T1)];
+chars_encode2([H|T],NumBits,T1={Min,Max,Tab}) when H =< Max, H >= Min ->
+ [pre_complete_bits(NumBits,exit_if_false(H,element(H-Min+1,Tab)))|
+ chars_encode2(T,NumBits,T1)];
+chars_encode2([{A,B,C,D}|T],NumBits,T1={Min,_Max,notab}) ->
+ %% no value range check here (ought to be, but very expensive)
+ [pre_complete_bits(NumBits,
+ ((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min)|
+ chars_encode2(T,NumBits,T1)];
+chars_encode2([H={A,B,C,D}|T],NumBits,{Min,Max,Tab}) ->
+ %% no value range check here (ought to be, but very expensive)
+ [pre_complete_bits(NumBits,exit_if_false(H,element(((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,Tab)))|chars_encode2(T,NumBits,{Min,Max,notab})];
+chars_encode2([H|_T],_NumBits,{_Min,_Max,_Tab}) ->
+ exit({error,{asn1,{illegal_char_value,H}}});
+chars_encode2([],_,_) ->
+ [].
+
+exit_if_false(V,false)->
+ exit({error,{asn1,{"illegal value according to Permitted alphabet constraint",V}}});
+exit_if_false(_,V) ->V.
+
+pre_complete_bits(NumBits,Val) when NumBits =< 8 ->
+ [10,NumBits,Val];
+pre_complete_bits(NumBits,Val) when NumBits =< 16 ->
+ [10,NumBits-8,Val bsr 8,10,8,(Val band 255)];
+pre_complete_bits(NumBits,Val) when NumBits =< 2040 -> % 255 * 8
+ Unused = (8 - (NumBits rem 8)) rem 8,
+ Len = NumBits + Unused,
+ [30,Unused,Len div 8,<<(Val bsl Unused):Len>>].
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_UTF8String(Val) -> CompleteList
+%% Val -> <<utf8encoded binary>>
+%% CompleteList -> [apropriate codes and values for driver complete]
+%%
+encode_UTF8String(Val) when is_binary(Val) ->
+ Sz = byte_size(Val),
+ [encode_length(Sz),octets_to_complete(Sz, Val)];
+encode_UTF8String(Val) ->
+ encode_UTF8String(list_to_binary(Val)).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_object_identifier(Val) -> CompleteList
+%% encode_object_identifier({Name,Val}) -> CompleteList
+%% Val -> {Int1,Int2,...,IntN} % N >= 2
+%% Name -> atom()
+%% Int1 -> integer(0..2)
+%% Int2 -> integer(0..39) when Int1 (0..1) else integer()
+%% Int3-N -> integer()
+%% CompleteList -> [{bits,8,Val}|{octets,Ol}|align|...]
+%%
+encode_object_identifier(Val) ->
+ OctetList = e_object_identifier(Val),
+ Octets = list_to_binary(OctetList),
+ Sz = byte_size(Octets),
+ [encode_length(Sz),
+ octets_to_complete(Sz, Octets)].
+
+e_object_identifier({'OBJECT IDENTIFIER',V}) ->
+ e_object_identifier(V);
+e_object_identifier(V) when is_tuple(V) ->
+ e_object_identifier(tuple_to_list(V));
+
+%% E1 = 0|1|2 and (E2 < 40 when E1 = 0|1)
+e_object_identifier([E1,E2|Tail]) when E1 >= 0, E1 < 2, E2 < 40 ; E1==2 ->
+ Head = 40*E1 + E2, % weird
+ e_object_elements([Head|Tail],[]);
+e_object_identifier(Oid=[_,_|_Tail]) ->
+ exit({error,{asn1,{'illegal_value',Oid}}}).
+
+e_object_elements([],Acc) ->
+ lists:reverse(Acc);
+e_object_elements([H|T],Acc) ->
+ e_object_elements(T,[e_object_element(H)|Acc]).
+
+e_object_element(Num) when Num < 128 ->
+ [Num];
+e_object_element(Num) ->
+ [e_o_e(Num bsr 7)|[Num band 2#1111111]].
+e_o_e(Num) when Num < 128 ->
+ Num bor 2#10000000;
+e_o_e(Num) ->
+ [e_o_e(Num bsr 7)|[(Num band 2#1111111) bor 2#10000000]].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_relative_oid(Val) -> CompleteList
+%% encode_relative_oid({Name,Val}) -> CompleteList
+encode_relative_oid(Val) when is_tuple(Val) ->
+ encode_relative_oid(tuple_to_list(Val));
+encode_relative_oid(Val) when is_list(Val) ->
+ Octets = list_to_binary([e_object_element(X)||X <- Val]),
+ Sz = byte_size(Octets),
+ [encode_length(Sz)|octets_to_complete(Sz, Octets)].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% complete(InList) -> ByteList
+%% Takes a coded list with bits and bytes and converts it to a list of bytes
+%% Should be applied as the last step at encode of a complete ASN.1 type
+%%
+
+complete(L) ->
+ asn1rt_nif:encode_per_complete(L).
+
+octets_to_complete(Len,Val) when Len < 256 ->
+ [20,Len,Val];
+octets_to_complete(Len,Val) ->
+ [21,<<Len:16>>,Val].
+
+octets_unused_to_complete(Unused,Len,Val) when Len < 256 ->
+ [30,Unused,Len,Val];
+octets_unused_to_complete(Unused,Len,Val) ->
+ [31,Unused,<<Len:16>>,Val].
diff --git a/lib/asn1/src/asn1rtt_per_common.erl b/lib/asn1/src/asn1rtt_per_common.erl
new file mode 100644
index 0000000000..a7d359a288
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_per_common.erl
@@ -0,0 +1,126 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+-module(asn1rtt_per_common).
+
+-include("asn1_records.hrl").
+
+-export([decode_fragmented/3,
+ decode_compact_bit_string/1,
+ decode_legacy_bit_string/1,
+ decode_named_bit_string/2,
+ decode_chars/2,decode_chars/3,
+ decode_chars_16bit/1,
+ decode_big_chars/2,
+ decode_oid/1,decode_relative_oid/1]).
+
+-define('16K',16384).
+
+decode_fragmented(SegSz0, Buf0, Unit) ->
+ SegSz = SegSz0 * Unit * ?'16K',
+ <<Res:SegSz/bitstring,Buf/bitstring>> = Buf0,
+ decode_fragmented_1(Buf, Unit, Res).
+
+decode_fragmented_1(<<0:1,N:7,Buf0/bitstring>>, Unit, Res) ->
+ Sz = N*Unit,
+ <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
+ {<<Res/bitstring,S/bitstring>>,Buf};
+decode_fragmented_1(<<1:1,0:1,N:14,Buf0/bitstring>>, Unit, Res) ->
+ Sz = N*Unit,
+ <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
+ {<<Res/bitstring,S/bitstring>>,Buf};
+decode_fragmented_1(<<1:1,1:1,SegSz0:6,Buf0/bitstring>>, Unit, Res0) ->
+ SegSz = SegSz0 * Unit * ?'16K',
+ <<Frag:SegSz/bitstring,Buf/bitstring>> = Buf0,
+ Res = <<Res0/bitstring,Frag/bitstring>>,
+ decode_fragmented_1(Buf, Unit, Res).
+
+decode_named_bit_string(Val, NNL) ->
+ Bits = [B || <<B:1>> <= Val],
+ decode_named_bit_string_1(0, Bits, NNL, []).
+
+decode_legacy_bit_string(Val) ->
+ [B || <<B:1>> <= Val].
+
+decode_compact_bit_string(Val) ->
+ PadLen = (8 - (bit_size(Val) band 7)) band 7,
+ {PadLen,<<Val/bitstring,0:PadLen>>}.
+
+decode_chars(Val, N) ->
+ [C || <<C:N>> <= Val].
+
+decode_chars(Val, N, Chars) ->
+ [element(C+1, Chars) || <<C:N>> <= Val].
+
+decode_chars_16bit(Val) ->
+ Cs = [C || <<C:16>> <= Val],
+ decode_chars_16bit_1(Cs).
+
+decode_big_chars(Val, N) ->
+ decode_big_chars_1(decode_chars(Val, N)).
+
+decode_oid(Octets) ->
+ [First|Rest] = dec_subidentifiers(Octets, 0, []),
+ Idlist = if
+ First < 40 ->
+ [0,First|Rest];
+ First < 80 ->
+ [1,First - 40|Rest];
+ true ->
+ [2,First - 80|Rest]
+ end,
+ list_to_tuple(Idlist).
+
+decode_relative_oid(Octets) ->
+ list_to_tuple(dec_subidentifiers(Octets, 0, [])).
+
+%%%
+%%% Internal functions.
+%%%
+
+decode_named_bit_string_1(Pos, [0|Bt], Names, Acc) ->
+ decode_named_bit_string_1(Pos+1, Bt, Names, Acc);
+decode_named_bit_string_1(Pos, [1|Bt], Names, Acc) ->
+ case lists:keyfind(Pos, 2, Names) of
+ {Name,_} ->
+ decode_named_bit_string_1(Pos+1, Bt, Names, [Name|Acc]);
+ false ->
+ decode_named_bit_string_1(Pos+1, Bt, Names, [{bit,Pos}|Acc])
+ end;
+decode_named_bit_string_1(_Pos, [], _Names, Acc) ->
+ lists:reverse(Acc).
+
+decode_chars_16bit_1([H|T]) when H < 256 ->
+ [H|decode_chars_16bit_1(T)];
+decode_chars_16bit_1([H|T]) ->
+ [{0,0,H bsr 8,H band 255}|decode_chars_16bit_1(T)];
+decode_chars_16bit_1([]) -> [].
+
+decode_big_chars_1([H|T]) when H < 256 ->
+ [H|decode_big_chars_1(T)];
+decode_big_chars_1([H|T]) ->
+ [list_to_tuple(binary_to_list(<<H:32>>))|decode_big_chars_1(T)];
+decode_big_chars_1([]) -> [].
+
+dec_subidentifiers([H|T], Av, Al) when H >=16#80 ->
+ dec_subidentifiers(T, (Av bsl 7) bor (H band 16#7F), Al);
+dec_subidentifiers([H|T], Av, Al) ->
+ dec_subidentifiers(T, 0, [(Av bsl 7) bor H|Al]);
+dec_subidentifiers([], _Av, Al) ->
+ lists:reverse(Al).
diff --git a/lib/asn1/src/asn1rtt_real_common.erl b/lib/asn1/src/asn1rtt_real_common.erl
new file mode 100644
index 0000000000..540f0d60a5
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_real_common.erl
@@ -0,0 +1,292 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(asn1rtt_real_common).
+
+-export([encode_real/1,decode_real/1,
+ ber_encode_real/1]).
+
+%%============================================================================
+%%
+%% Real value, ITU_T X.690 Chapter 8.5
+%%============================================================================
+%%
+%% encode real value
+%%============================================================================
+
+ber_encode_real(0) ->
+ {[],0};
+ber_encode_real('PLUS-INFINITY') ->
+ {[64],1};
+ber_encode_real('MINUS-INFINITY') ->
+ {[65],1};
+ber_encode_real(Val) when is_tuple(Val); is_list(Val) ->
+ encode_real(Val).
+
+%%%%%%%%%%%%%%
+%% only base 2 encoding!
+%% binary encoding:
+%% +------------+ +------------+ +-+-+-+-+---+---+
+%% | (tag)9 | | n + p + 1 | |1|S|BB |FF |EE |
+%% +------------+ +------------+ +-+-+-+-+---+---+
+%%
+%% +------------+ +------------+
+%% | | | |
+%% +------------+ ...+------------+
+%% n octets for exponent
+%%
+%% +------------+ +------------+
+%% | | | |
+%% +------------+ ...+------------+
+%% p octets for pos mantissa
+%%
+%% S is 0 for positive sign
+%% 1 for negative sign
+%% BB: encoding base, 00 = 2, (01 = 8, 10 = 16)
+%% 01 and 10 not used
+%% FF: scale factor 00 = 0 (used in base 2 encoding)
+%% EE: encoding of the exponent:
+%% 00 - on the following octet
+%% 01 - on the 2 following octets
+%% 10 - on the 3 following octets
+%% 11 - encoding of the length of the two's-complement encoding of
+%% exponent on the following octet, and two's-complement
+%% encoding of exponent on the other octets.
+%%
+%% In DER and base 2 encoding the mantissa is encoded as value 0 or
+%% bit shifted until it is an odd number. Thus, do this for BER as
+%% well.
+
+encode_real(Real) ->
+ encode_real([], Real).
+
+encode_real(_C, {Mantissa, Base, Exponent}) when Base =:= 2 ->
+%% io:format("Mantissa: ~w Base: ~w, Exp: ~w~n",[Man, Base, Exp]),
+ {Man,ExpAdd} = truncate_zeros(Mantissa), %% DER adjustment
+ Exp = Exponent + ExpAdd,
+ OctExp = if Exp >= 0 -> list_to_binary(encode_pos_integer(Exp, []));
+ true -> list_to_binary(encode_neg_integer(Exp, []))
+ end,
+%% ok = io:format("OctExp: ~w~n",[OctExp]),
+ SignBit = if Man > 0 -> 0; % bit 7 is pos or neg, no Zeroval
+ true -> 1
+ end,
+%% ok = io:format("SignBitMask: ~w~n",[SignBitMask]),
+ SFactor = 0,
+ OctExpLen = size(OctExp),
+ if OctExpLen > 255 ->
+ exit({error,{asn1, {to_big_exp_in_encode_real, OctExpLen}}});
+ true -> true %% make real assert later..
+ end,
+ {LenCode, EOctets} = case OctExpLen of % bit 2,1
+ 1 -> {0, OctExp};
+ 2 -> {1, OctExp};
+ 3 -> {2, OctExp};
+ _ -> {3, <<OctExpLen, OctExp/binary>>}
+ end,
+ BB = 0, %% 00 for base 2
+ FirstOctet = <<1:1,SignBit:1,BB:2,SFactor:2,LenCode:2>>,
+ OctMantissa = if Man > 0 -> list_to_binary(real_mininum_octets(Man));
+ true -> list_to_binary(real_mininum_octets(-(Man))) % signbit keeps track of sign
+ end,
+ %% ok = io:format("LenMask: ~w EOctets: ~w~nFirstOctet: ~w OctMantissa: ~w OctExpLen: ~w~n", [LenMask, EOctets, FirstOctet, OctMantissa, OctExpLen]),
+ Bin = <<FirstOctet/binary, EOctets/binary, OctMantissa/binary>>,
+ {Bin, size(Bin)};
+encode_real(C, {Mantissa,Base,Exponent})
+ when Base =:= 10, is_integer(Mantissa), is_integer(Exponent) ->
+ %% always encode as NR3 due to DER on the format
+ %% mmmm.Eseeee where
+ %% m := digit
+ %% s := '-' | '+' | []
+ %% '+' only allowed in +0
+ %% e := digit
+ %% ex: 1234.E-5679
+ ManStr = integer_to_list(Mantissa),
+
+ encode_real_as_string(C,ManStr,Exponent);
+encode_real(_C, {_,Base,_}) ->
+ exit({error,{asn1, {encode_real_non_supported_encoding, Base}}});
+%% base 10
+encode_real(C, Real) when is_list(Real) ->
+ %% The Real string may come in as a NR1, NR2 or NR3 string.
+ {Mantissa, Exponent} =
+ case string:tokens(Real,"Ee") of
+ [NR2] ->
+ {NR2,0};
+ [NR3MB,NR3E] ->
+ %% remove beginning zeros
+ {NR3MB,list_to_integer(NR3E)}
+ end,
+
+ %% .Decimal | Number | Number.Decimal
+ ZeroDecimal =
+ fun("0") -> "";
+ (L) -> L
+ end,
+ {NewMantissa,LenDecimal} =
+ case Mantissa of
+ [$.|Dec] ->
+ NewMan = remove_trailing_zeros(Dec),
+ {NewMan,length(ZeroDecimal(NewMan))};
+ _ ->
+ case string:tokens(Mantissa,",.") of
+ [Num] -> %% No decimal-mark
+ {integer_to_list(list_to_integer(Num)),0};
+ [Num,Dec] ->
+ NewDec = ZeroDecimal(remove_trailing_zeros(Dec)),
+ NewMan = integer_to_list(list_to_integer(Num)) ++ NewDec,
+ {integer_to_list(list_to_integer(NewMan)),
+ length(NewDec)}
+ end
+ end,
+
+ encode_real_as_string(C, NewMantissa, Exponent - LenDecimal).
+
+encode_real_as_string(_C, Mantissa, Exponent)
+ when is_list(Mantissa), is_integer(Exponent) ->
+ %% Remove trailing zeros in Mantissa and add this to Exponent
+ TruncMant = remove_trailing_zeros(Mantissa),
+
+ ExpIncr = length(Mantissa) - length(TruncMant),
+
+ ExpStr = integer_to_list(Exponent + ExpIncr),
+
+ ExpBin =
+ case ExpStr of
+ "0" ->
+ <<"E+0">>;
+ _ ->
+ ExpB = list_to_binary(ExpStr),
+ <<$E,ExpB/binary>>
+ end,
+ ManBin = list_to_binary(TruncMant),
+ NR3 = 3,
+ {<<NR3,ManBin/binary,$.,ExpBin/binary>>,
+ 2 + byte_size(ManBin) + byte_size(ExpBin)}.
+
+remove_trailing_zeros(IntStr) ->
+ case lists:dropwhile(fun($0)-> true;
+ (_) -> false
+ end, lists:reverse(IntStr)) of
+ [] ->
+ "0";
+ ReversedIntStr ->
+ lists:reverse(ReversedIntStr)
+ end.
+
+truncate_zeros(Num) ->
+ truncate_zeros(Num, 0).
+truncate_zeros(0, Sum) ->
+ {0,Sum};
+truncate_zeros(M, Sum) ->
+ case M band 16#f =:= M band 16#e of
+ true -> truncate_zeros(M bsr 1, Sum+1);
+ _ -> {M,Sum}
+ end.
+
+
+%%============================================================================
+%% decode real value
+%%
+%% decode_real([OctetBufferList], tuple|value, tag|notag) ->
+%% {{Mantissa, Base, Exp} | realval | PLUS-INFINITY | MINUS-INFINITY | 0,
+%% RestBuff}
+%%
+%% only for base 2 decoding sofar!!
+%%============================================================================
+
+decode_real(Buffer) ->
+ Sz = byte_size(Buffer),
+ {RealVal,<<>>,Sz} = decode_real2(Buffer, [], Sz, 0),
+ RealVal.
+
+decode_real2(Buffer, _C, 0, _RemBytes) ->
+ {0,Buffer};
+decode_real2(Buffer0, _C, Len, RemBytes1) ->
+ <<First, Buffer2/binary>> = Buffer0,
+ if
+ First =:= 2#01000000 -> {'PLUS-INFINITY', Buffer2};
+ First =:= 2#01000001 -> {'MINUS-INFINITY', Buffer2};
+ First =:= 1 orelse First =:= 2 orelse First =:= 3 ->
+ %% charcter string encoding of base 10
+ {NRx,Rest} = split_binary(Buffer2,Len-1),
+ {binary_to_list(NRx),Rest,Len};
+ true ->
+ %% have some check here to verify only supported bases (2)
+ %% not base 8 or 16
+ <<_B7:1,Sign:1,BB:2,_FF:2,EE:2>> = <<First>>,
+ Base =
+ case BB of
+ 0 -> 2; % base 2, only one so far
+ _ -> exit({error,{asn1, {non_supported_base, BB}}})
+ end,
+ {FirstLen, {Exp, Buffer3,_Rb2}, RemBytes2} =
+ case EE of
+ 0 -> {2, decode_integer2(1, Buffer2, RemBytes1), RemBytes1+1};
+ 1 -> {3, decode_integer2(2, Buffer2, RemBytes1), RemBytes1+2};
+ 2 -> {4, decode_integer2(3, Buffer2, RemBytes1), RemBytes1+3};
+ 3 ->
+ <<ExpLen1,RestBuffer/binary>> = Buffer2,
+ { ExpLen1 + 2,
+ decode_integer2(ExpLen1, RestBuffer, RemBytes1),
+ RemBytes1+ExpLen1}
+ end,
+ %% io:format("FirstLen: ~w, Exp: ~w, Buffer3: ~w ~n",
+
+ Length = Len - FirstLen,
+ <<LongInt:Length/unit:8,RestBuff/binary>> = Buffer3,
+ {{Mantissa, Buffer4}, RemBytes3} =
+ if Sign =:= 0 ->
+ %% io:format("sign plus~n"),
+ {{LongInt, RestBuff}, 1 + Length};
+ true ->
+ %% io:format("sign minus~n"),
+ {{-LongInt, RestBuff}, 1 + Length}
+ end,
+ {{Mantissa, Base, Exp}, Buffer4, RemBytes2+RemBytes3}
+ end.
+
+encode_pos_integer(0, [B|_Acc]=L) when B < 128 ->
+ L;
+encode_pos_integer(N, Acc) ->
+ encode_pos_integer(N bsr 8, [N band 16#ff| Acc]).
+
+encode_neg_integer(-1, [B1|_T]=L) when B1 > 127 ->
+ L;
+encode_neg_integer(N, Acc) ->
+ encode_neg_integer(N bsr 8, [N band 16#ff|Acc]).
+
+
+%% Val must be >= 0
+real_mininum_octets(Val) ->
+ real_mininum_octets(Val, []).
+
+real_mininum_octets(0, Acc) ->
+ Acc;
+real_mininum_octets(Val, Acc) ->
+ real_mininum_octets(Val bsr 8, [Val band 16#FF | Acc]).
+
+%% decoding postitive integer values.
+decode_integer2(Len, <<0:1,_:7,_Bs/binary>> = Bin, RemovedBytes) ->
+ <<Int:Len/unit:8,Buffer2/binary>> = Bin,
+ {Int,Buffer2,RemovedBytes};
+%% decoding negative integer values.
+decode_integer2(Len, <<1:1,B2:7,Bs/binary>>, RemovedBytes) ->
+ <<N:Len/unit:8,Buffer2/binary>> = <<B2,Bs/binary>>,
+ Int = N - (1 bsl (8 * Len - 1)),
+ {Int,Buffer2,RemovedBytes}.
diff --git a/lib/asn1/src/asn1rtt_uper.erl b/lib/asn1/src/asn1rtt_uper.erl
new file mode 100644
index 0000000000..b5e8a3c3bb
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_uper.erl
@@ -0,0 +1,1042 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+-module(asn1rtt_uper).
+
+-export([setext/1, fixoptionals/3,
+ fixextensions/2,
+ skipextensions/3, getbit/1, getchoice/3 ]).
+-export([set_choice/3, encode_integer/2, encode_integer/3]).
+-export([encode_small_number/1, encode_constrained_number/2,
+ encode_boolean/1,
+ encode_length/1, encode_length/2,
+ encode_bit_string/3]).
+-export([encode_octet_string/1,encode_octet_string/2,
+ encode_relative_oid/1,
+ encode_object_identifier/1,
+ complete/1, complete_NFP/1]).
+
+ -export([encode_open_type/1]).
+
+ -export([encode_UniversalString/2,
+ encode_PrintableString/2,
+ encode_GeneralString/2,
+ encode_GraphicString/2,
+ encode_TeletexString/2,
+ encode_VideotexString/2,
+ encode_VisibleString/2,
+ encode_UTF8String/1,
+ encode_BMPString/2,
+ encode_IA5String/2,
+ encode_NumericString/2,
+ encode_ObjectDescriptor/2
+ ]).
+
+-define('16K',16384).
+-define('32K',32768).
+-define('64K',65536).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% setext(true|false) -> CompleteList
+%%
+
+setext(false) ->
+ <<0:1>>;
+setext(true) ->
+ <<1:1>>.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This is the new fixoptionals/3 which is used by the new generates
+%%
+fixoptionals(OptList,OptLength,Val) when is_tuple(Val) ->
+ Bits = fixoptionals(OptList,Val,0),
+ {Val,<<Bits:OptLength>>};
+
+fixoptionals([],_Val,Acc) ->
+ %% Optbits
+ Acc;
+fixoptionals([{Pos,DefVal}|Ot],Val,Acc) ->
+ case element(Pos,Val) of
+ asn1_DEFAULT -> fixoptionals(Ot,Val,Acc bsl 1);
+ DefVal -> fixoptionals(Ot,Val,Acc bsl 1);
+ _ -> fixoptionals(Ot,Val,(Acc bsl 1) + 1)
+ end;
+fixoptionals([Pos|Ot],Val,Acc) ->
+ case element(Pos,Val) of
+ asn1_NOVALUE -> fixoptionals(Ot,Val,Acc bsl 1);
+ asn1_DEFAULT -> fixoptionals(Ot,Val,Acc bsl 1);
+ _ -> fixoptionals(Ot,Val,(Acc bsl 1) + 1)
+ end.
+
+
+fixextensions({ext,ExtPos,ExtNum},Val) ->
+ case fixextensions(ExtPos,ExtNum+ExtPos,Val,0) of
+ 0 -> [];
+ ExtBits ->
+ [encode_small_length(ExtNum),<<ExtBits:ExtNum>>]
+ end.
+
+fixextensions(Pos,MaxPos,_,Acc) when Pos >= MaxPos ->
+ Acc;
+fixextensions(Pos,ExtPos,Val,Acc) ->
+ Bit = case catch(element(Pos+1,Val)) of
+ asn1_NOVALUE ->
+ 0;
+ asn1_NOEXTVALUE ->
+ 0;
+ {'EXIT',_} ->
+ 0;
+ _ ->
+ 1
+ end,
+ fixextensions(Pos+1,ExtPos,Val,(Acc bsl 1)+Bit).
+
+skipextensions(Bytes0, Nr, ExtensionBitstr) when is_bitstring(ExtensionBitstr) ->
+ Prev = Nr - 1,
+ case ExtensionBitstr of
+ <<_:Prev,1:1,_/bitstring>> ->
+ {Len,Bytes1} = decode_length(Bytes0),
+ <<_:Len/binary,Bytes2/bitstring>> = Bytes1,
+ skipextensions(Bytes2, Nr+1, ExtensionBitstr);
+ <<_:Prev,0:1,_/bitstring>> ->
+ skipextensions(Bytes0, Nr+1, ExtensionBitstr);
+ _ ->
+ Bytes0
+ end.
+
+
+getchoice(Bytes,1,0) -> % only 1 alternative is not encoded
+ {0,Bytes};
+getchoice(Bytes,_,1) ->
+ decode_small_number(Bytes);
+getchoice(Bytes,NumChoices,0) ->
+ decode_constrained_number(Bytes,{0,NumChoices-1}).
+
+
+getbit(Buffer) ->
+ <<B:1,Rest/bitstring>> = Buffer,
+ {B,Rest}.
+
+getbits(Buffer, Num) when is_bitstring(Buffer) ->
+ <<Bs:Num,Rest/bitstring>> = Buffer,
+ {Bs,Rest}.
+
+
+%% Pick the first Num octets.
+%% Returns octets as an integer with bit significance as in buffer.
+getoctets(Buffer, Num) when is_bitstring(Buffer) ->
+ <<Val:Num/integer-unit:8,RestBitStr/bitstring>> = Buffer,
+ {Val,RestBitStr}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% set_choice(Alt,Choices,Altnum) -> ListofBitSettings
+%% Alt = atom()
+%% Altnum = integer() | {integer(),integer()}% number of alternatives
+%% Choices = [atom()] | {[atom()],[atom()]}
+%% When Choices is a tuple the first list is the Rootset and the
+%% second is the Extensions and then Altnum must also be a tuple with the
+%% lengths of the 2 lists
+%%
+set_choice(Alt, {L1,L2}, {Len1,_Len2}) ->
+ case set_choice_tag(Alt, L1) of
+ N when is_integer(N), Len1 > 1 ->
+ [<<0:1>>, % the value is in the root set
+ encode_integer([{'ValueRange',{0,Len1-1}}],N)];
+ N when is_integer(N) ->
+ <<0:1>>; % no encoding if only 0 or 1 alternative
+ false ->
+ [<<1:1>>, % extension value
+ case set_choice_tag(Alt,L2) of
+ N2 when is_integer(N2) ->
+ encode_small_number(N2);
+ false ->
+ unknown_choice_alt
+ end]
+ end;
+set_choice(Alt,L,Len) ->
+ case set_choice_tag(Alt,L) of
+ N when is_integer(N), Len > 1 ->
+ encode_integer([{'ValueRange',{0,Len-1}}],N);
+ N when is_integer(N) ->
+ []; % no encoding if only 0 or 1 alternative
+ false ->
+ [unknown_choice_alt]
+ end.
+
+set_choice_tag(Alt,Choices) ->
+ set_choice_tag(Alt,Choices,0).
+
+set_choice_tag(Alt,[Alt|_Rest],Tag) ->
+ Tag;
+set_choice_tag(Alt,[_H|Rest],Tag) ->
+ set_choice_tag(Alt,Rest,Tag+1);
+set_choice_tag(_Alt,[],_Tag) ->
+ false.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_open_type(Constraint, Value) -> CompleteList
+%% Value = list of bytes of an already encoded value (the list must be flat)
+%% | binary
+%% Contraint = not used in this version
+%%
+encode_open_type(Val) when is_list(Val) ->
+ encode_open_type(list_to_binary(Val));
+encode_open_type(Val) when is_binary(Val) ->
+ [encode_length(byte_size(Val)),Val].
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_integer(Constraint,Value,NamedNumberList) -> CompleteList
+%% encode_integer(Constraint,Value) -> CompleteList
+%% encode_integer(Constraint,{Name,Value}) -> CompleteList
+%%
+%%
+encode_integer(C, V, NamedNumberList) when is_atom(V) ->
+ case lists:keyfind(V, 1, NamedNumberList) of
+ {_,NewV} ->
+ encode_integer(C, NewV);
+ false ->
+ exit({error,{asn1,{namednumber,V}}})
+ end;
+encode_integer(C, V, _NamedNumberList) when is_integer(V) ->
+ encode_integer(C, V).
+
+encode_integer([{Rc,_Ec}],Val) when is_tuple(Rc) ->
+ try
+ [<<0:1>>,encode_integer([Rc], Val)]
+ catch
+ _:{error,{asn1,_}} ->
+ [<<1:1>>,encode_unconstrained_number(Val)]
+ end;
+encode_integer(C, Val) when is_list(C) ->
+ case get_constraint(C, 'SingleValue') of
+ no ->
+ encode_integer1(C,Val);
+ V when is_integer(V), V =:= Val ->
+ []; % a type restricted to a single value encodes to nothing
+ V when is_list(V) ->
+ case lists:member(Val,V) of
+ true ->
+ encode_integer1(C,Val);
+ _ ->
+ exit({error,{asn1,{illegal_value,Val}}})
+ end;
+ _ ->
+ exit({error,{asn1,{illegal_value,Val}}})
+ end.
+
+encode_integer1(C, Val) ->
+ case VR = get_constraint(C, 'ValueRange') of
+ no ->
+ encode_unconstrained_number(Val);
+ {Lb,'MAX'} ->
+ encode_semi_constrained_number(Lb, Val);
+ %% positive with range
+ {Lb,Ub} when Val >= Lb, Ub >= Val ->
+ encode_constrained_number(VR,Val);
+ _ ->
+ exit({error,{asn1,{illegal_value,VR,Val}}})
+ end.
+
+%% X.691:10.6 Encoding of a normally small non-negative whole number
+%% Use this for encoding of CHOICE index if there is an extension marker in
+%% the CHOICE
+encode_small_number(Val) when Val < 64 ->
+ <<Val:7>>;
+encode_small_number(Val) ->
+ [<<1:1>>|encode_semi_constrained_number(0, Val)].
+
+decode_small_number(Bytes) ->
+ {Bit,Bytes2} = getbit(Bytes),
+ case Bit of
+ 0 ->
+ getbits(Bytes2,6);
+ 1 ->
+ decode_semi_constrained_number(Bytes2)
+ end.
+
+%% X.691:10.7 Encoding of a semi-constrained whole number
+encode_semi_constrained_number(Lb, Val) ->
+ %% encoding in minimum number of octets preceeded by a length
+ Val2 = Val - Lb,
+ Bin = eint_bin_positive(Val2),
+ Size = byte_size(Bin),
+ if
+ Size < 128 ->
+ [<<Size>>,Bin];
+ Size < 16384 ->
+ [<<2:2,Size:14>>,Bin];
+ true ->
+ [encode_length(Size),Bin]
+ end.
+
+decode_semi_constrained_number(Bytes) ->
+ {Len,Bytes2} = decode_length(Bytes),
+ {V,Bytes3} = getoctets(Bytes2,Len),
+ {V,Bytes3}.
+
+encode_constrained_number({Lb,Ub}, Val) when Val >= Lb, Ub >= Val ->
+ Range = Ub - Lb + 1,
+ Val2 = Val - Lb,
+ NumBits = num_bits(Range),
+ <<Val2:NumBits>>;
+encode_constrained_number(Range,Val) ->
+ exit({error,{asn1,{integer_range,Range,value,Val}}}).
+
+
+decode_constrained_number(Buffer, {Lb,Ub}) ->
+ Range = Ub - Lb + 1,
+ NumBits = num_bits(Range),
+ {Val,Remain} = getbits(Buffer,NumBits),
+ {Val+Lb,Remain}.
+
+%% X.691:10.8 Encoding of an unconstrained whole number
+
+encode_unconstrained_number(Val) when Val >= 0 ->
+ Oct = eint_bin_2Cs(Val),
+ Len = byte_size(Oct),
+ if
+ Len < 128 ->
+ [<<Len>>,Oct]; % equiv with encode_length(undefined,Len) but faster
+ Len < 16384 ->
+ [<<2:2,Len:14>>,Oct];
+ true ->
+ [encode_length(Len),<<Len:16>>,Oct]
+ end;
+encode_unconstrained_number(Val) -> % negative
+ Oct = enint(Val,[]),
+ Len = byte_size(Oct),
+ if
+ Len < 128 ->
+ [<<Len>>,Oct]; % equiv with encode_length(undefined,Len) but faster
+ Len < 16384 ->
+ [<<2:2,Len:14>>,Oct];
+ true ->
+ [encode_length(Len),Oct]
+ end.
+
+
+eint_bin_2Cs(Int) ->
+ case eint_bin_positive(Int) of
+ <<B,_/binary>> = Bin when B > 16#7f ->
+ <<0,Bin/binary>>;
+ Bin -> Bin
+ end.
+
+%% returns the integer as a binary
+eint_bin_positive(Val) when Val < 16#100 ->
+ <<Val>>;
+eint_bin_positive(Val) when Val < 16#10000 ->
+ <<Val:16>>;
+eint_bin_positive(Val) when Val < 16#1000000 ->
+ <<Val:24>>;
+eint_bin_positive(Val) when Val < 16#100000000 ->
+ <<Val:32>>;
+eint_bin_positive(Val) ->
+ list_to_binary([eint_bin_positive2(Val bsr 32),<<Val:32>>]).
+
+eint_bin_positive2(Val) when Val < 16#100 ->
+ <<Val>>;
+eint_bin_positive2(Val) when Val < 16#10000 ->
+ <<Val:16>>;
+eint_bin_positive2(Val) when Val < 16#1000000 ->
+ <<Val:24>>;
+eint_bin_positive2(Val) when Val < 16#100000000 ->
+ <<Val:32>>;
+eint_bin_positive2(Val) ->
+ [eint_bin_positive2(Val bsr 32),<<Val:32>>].
+
+
+
+
+enint(-1, [B1|T]) when B1 > 127 ->
+ list_to_binary([B1|T]);
+enint(N, Acc) ->
+ enint(N bsr 8, [N band 16#ff|Acc]).
+
+
+%% X.691:10.9 Encoding of a length determinant
+%%encode_small_length(undefined,Len) -> % null means no UpperBound
+%% encode_small_number(Len).
+
+%% X.691:10.9.3.5
+%% X.691:10.9.3.7
+encode_length(Len) -> % un-constrained
+ if
+ Len < 128 ->
+ <<Len>>;
+ Len < 16384 ->
+ <<2:2,Len:14>>;
+ true -> % should be able to endode length >= 16384
+ error({error,{asn1,{encode_length,{nyi,above_16k}}}})
+ end.
+
+encode_length(undefined, Len) -> % unconstrained
+ encode_length(Len);
+encode_length({0,'MAX'},Len) ->
+ encode_length(undefined, Len);
+encode_length({Lb,Ub}=Vr, Len) when Ub =< 65535, Lb >= 0 -> % constrained
+ encode_constrained_number(Vr,Len);
+encode_length({Lb,_Ub}, Len) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
+ encode_length(Len);
+encode_length({{Lb,Ub}=Vr,Ext},Len)
+ when Ub =< 65535, Lb >= 0, Len =< Ub, is_list(Ext) ->
+ %% constrained extensible
+ [<<0:1>>,encode_constrained_number(Vr,Len)];
+encode_length({{Lb,_Ub},Ext}, Len) when is_list(Ext) ->
+ [<<1:1>>,encode_semi_constrained_number(Lb, Len)];
+encode_length(SingleValue, _Len) when is_integer(SingleValue) ->
+ [].
+
+%% X.691 10.9.3.4 (only used for length of bitmap that prefixes extension
+%% additions in a sequence or set
+encode_small_length(Len) when Len =< 64 ->
+ <<(Len-1):7>>;
+encode_small_length(Len) ->
+ [<<1:1>>,encode_length(Len)].
+
+
+%% un-constrained
+decode_length(<<0:1,Oct:7,Rest/bitstring>>) ->
+ {Oct,Rest};
+decode_length(<<2:2,Val:14,Rest/bitstring>>) ->
+ {Val,Rest};
+decode_length(<<3:2,_:14,_Rest/bitstring>>) ->
+ exit({error,{asn1,{decode_length,{nyi,above_16k}}}}).
+
+ % X.691:11
+encode_boolean(true) ->
+ <<1:1>>;
+encode_boolean(false) ->
+ <<0:1>>;
+encode_boolean(Val) ->
+ exit({error,{asn1,{encode_boolean,Val}}}).
+
+
+%%============================================================================
+%%============================================================================
+%% Bitstring value, ITU_T X.690 Chapter 8.5
+%%============================================================================
+%%============================================================================
+
+%%============================================================================
+%% encode bitstring value
+%%============================================================================
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% bitstring NamedBitList
+%% Val can be of:
+%% - [identifiers] where only named identifers are set to one,
+%% the Constraint must then have some information of the
+%% bitlength.
+%% - [list of ones and zeroes] all bits
+%% - integer value representing the bitlist
+%% C is constraint Len, only valid when identifiers are present
+
+
+%% when the value is a list of {Unused,BinBits}, where
+%% Unused = integer(),
+%% BinBits = binary().
+
+encode_bit_string(C, Bits, NamedBitList) when is_bitstring(Bits) ->
+ PadLen = (8 - (bit_size(Bits) band 7)) band 7,
+ Compact = {PadLen,<<Bits/bitstring,0:PadLen>>},
+ encode_bit_string(C, Compact, NamedBitList);
+encode_bit_string(C, {Unused,BinBits}=Bin, NamedBitList)
+ when is_integer(Unused), is_binary(BinBits) ->
+ encode_bin_bit_string(C, Bin, NamedBitList);
+
+encode_bit_string(C, BitListVal, NamedBitList) ->
+ encode_bit_string1(C, BitListVal, NamedBitList).
+
+%% when the value is a list of named bits
+encode_bit_string1(C, [FirstVal|_RestVal]=LoNB, NamedBitList)
+ when is_atom(FirstVal) ->
+ ToSetPos = get_all_bitposes(LoNB, NamedBitList, []),
+ BitList = make_and_set_list(ToSetPos, 0),
+ encode_bit_string1(C, BitList, NamedBitList);
+encode_bit_string1(C, [{bit,_No}|_RestVal]=BL, NamedBitList) ->
+ ToSetPos = get_all_bitposes(BL, NamedBitList, []),
+ BitList = make_and_set_list(ToSetPos, 0),
+ encode_bit_string1(C, BitList, NamedBitList);
+%% when the value is a list of ones and zeroes
+encode_bit_string1(Int, BitListValue, _)
+ when is_list(BitListValue), is_integer(Int) ->
+ %% The type is constrained by a single value size constraint
+ bit_list2bitstr(Int, BitListValue);
+encode_bit_string1(no, BitListValue, [])
+ when is_list(BitListValue) ->
+ Len = length(BitListValue),
+ [encode_length(Len),bit_list2bitstr(Len,BitListValue)];
+encode_bit_string1(C, BitListValue,[])
+ when is_list(BitListValue) ->
+ Len = length(BitListValue),
+ [encode_length(C, Len),bit_list2bitstr(Len,BitListValue)];
+encode_bit_string1(no, BitListValue,_NamedBitList)
+ when is_list(BitListValue) ->
+ NewBitLVal = lists:reverse(lists:dropwhile(fun(0)->true;(1)->false end,
+ lists:reverse(BitListValue))),
+ Len = length(NewBitLVal),
+ [encode_length(Len),bit_list2bitstr(Len,NewBitLVal)];
+encode_bit_string1(C, BitListValue, _NamedBitList)
+ when is_list(BitListValue) ->% C = {_,'MAX'}
+ NewBitStr = bitstr_trailing_zeros(BitListValue, C),
+ [encode_length(C, bit_size(NewBitStr)),NewBitStr];
+
+
+%% when the value is an integer
+encode_bit_string1(C, IntegerVal, NamedBitList) when is_integer(IntegerVal)->
+ BitList = int_to_bitlist(IntegerVal),
+ encode_bit_string1(C, BitList, NamedBitList).
+
+bit_list2bitstr(Len,BitListValue) ->
+ case length(BitListValue) of
+ Len ->
+ << <<B:1>> || B <- BitListValue>>;
+ L when L > Len -> % truncate
+ <<(<< <<B:1>> || B <- BitListValue>>):Len/bitstring>>;
+ L -> % Len > L -> pad
+ <<(<< <<B:1>> || B <- BitListValue>>)/bitstring,0:(Len-L)>>
+ end.
+
+adjust_trailing_zeros(Len, Bin) when Len =:= bit_size(Bin) ->
+ Bin;
+adjust_trailing_zeros(Len, Bin) when Len > bit_size(Bin) ->
+ <<Bin/bitstring,0:(Len-bit_size(Bin))>>;
+adjust_trailing_zeros(Len,Bin) ->
+ <<Bin:Len/bitstring>>.
+
+bitstr_trailing_zeros(BitList, C) when is_integer(C) ->
+ bitstr_trailing_zeros1(BitList, C, C);
+bitstr_trailing_zeros(BitList, {Lb,Ub}) when is_integer(Lb) ->
+ bitstr_trailing_zeros1(BitList,Lb,Ub);
+bitstr_trailing_zeros(BitList, {{Lb,Ub},_}) when is_integer(Lb) ->
+ bitstr_trailing_zeros1(BitList, Lb, Ub);
+bitstr_trailing_zeros(BitList, _) ->
+ bit_list2bitstr(length(BitList), BitList).
+
+bitstr_trailing_zeros1(BitList, Lb, Ub) ->
+ case length(BitList) of
+ Lb -> bit_list2bitstr(Lb, BitList);
+ B when B < Lb -> bit_list2bitstr(Lb, BitList);
+ D -> F = fun(L,LB,LB,_,_)->bit_list2bitstr(LB,lists:reverse(L));
+ ([0|R],L1,LB,UB,Fun)->Fun(R,L1-1,LB,UB,Fun);
+ (L,L1,_,UB,_)when L1 =< UB ->
+ bit_list2bitstr(L1,lists:reverse(L));
+ (_,_L1,_,_,_) ->exit({error,{list_length_BIT_STRING,
+ BitList}}) end,
+ F(lists:reverse(BitList),D,Lb,Ub,F)
+ end.
+
+%% encode_bin_bit_string/3, when value is a tuple of Unused and BinBits.
+%% Unused = integer(),i.e. number unused bits in least sign. byte of
+%% BinBits = binary().
+encode_bin_bit_string(C, {_,BinBits}, _NamedBitList)
+ when is_integer(C), C =< 16 ->
+ adjust_trailing_zeros(C, BinBits);
+encode_bin_bit_string(C, {_Unused,BinBits}, _NamedBitList)
+ when is_integer(C) ->
+ adjust_trailing_zeros(C, BinBits);
+encode_bin_bit_string(C, {_,_}=UnusedAndBin, NamedBitList) ->
+ %% removes all trailing bits if NamedBitList is not empty
+ BitStr = remove_trailing_bin(NamedBitList, UnusedAndBin),
+ case C of
+ {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
+ [encode_length({Lb,Ub},bit_size(BitStr)),BitStr];
+ no ->
+ [encode_length(bit_size(BitStr)),BitStr];
+ Sc ->
+ [encode_length(Sc,bit_size(BitStr)),BitStr]
+ end.
+
+
+remove_trailing_bin([], {Unused,Bin}) ->
+ BS = bit_size(Bin)-Unused,
+ <<BitStr:BS/bitstring,_:Unused>> = Bin,
+ BitStr;
+remove_trailing_bin(_NamedNumberList, {_Unused,<<>>}) ->
+ <<>>;
+remove_trailing_bin(NamedNumberList, {_Unused,Bin}) ->
+ Size = byte_size(Bin)-1,
+ <<Bfront:Size/binary, LastByte:8>> = Bin,
+
+ %% clear the Unused bits to be sure
+ Unused1 = trailingZeroesInNibble(LastByte band 15),
+ Unused2 =
+ case Unused1 of
+ 4 ->
+ 4 + trailingZeroesInNibble(LastByte bsr 4);
+ _ -> Unused1
+ end,
+ case Unused2 of
+ 8 ->
+ remove_trailing_bin(NamedNumberList,{0,Bfront});
+ _ ->
+ BS = bit_size(Bin) - Unused2,
+ <<BitStr:BS/bitstring,_:Unused2>> = Bin,
+ BitStr
+ end.
+
+trailingZeroesInNibble(0) ->
+ 4;
+trailingZeroesInNibble(1) ->
+ 0;
+trailingZeroesInNibble(2) ->
+ 1;
+trailingZeroesInNibble(3) ->
+ 0;
+trailingZeroesInNibble(4) ->
+ 2;
+trailingZeroesInNibble(5) ->
+ 0;
+trailingZeroesInNibble(6) ->
+ 1;
+trailingZeroesInNibble(7) ->
+ 0;
+trailingZeroesInNibble(8) ->
+ 3;
+trailingZeroesInNibble(9) ->
+ 0;
+trailingZeroesInNibble(10) ->
+ 1;
+trailingZeroesInNibble(11) ->
+ 0;
+trailingZeroesInNibble(12) -> %#1100
+ 2;
+trailingZeroesInNibble(13) ->
+ 0;
+trailingZeroesInNibble(14) ->
+ 1;
+trailingZeroesInNibble(15) ->
+ 0.
+
+
+%%%%%%%%%%%%%%%
+%%
+
+int_to_bitlist(Int) when is_integer(Int), Int > 0 ->
+ [Int band 1 | int_to_bitlist(Int bsr 1)];
+int_to_bitlist(0) ->
+ [].
+
+
+%%%%%%%%%%%%%%%%%%
+%% get_all_bitposes([list of named bits to set], named_bit_db, []) ->
+%% [sorted_list_of_bitpositions_to_set]
+
+get_all_bitposes([{bit,ValPos}|Rest], NamedBitList, Ack) ->
+ get_all_bitposes(Rest, NamedBitList, [ValPos | Ack ]);
+
+get_all_bitposes([Val | Rest], NamedBitList, Ack) ->
+ case lists:keyfind(Val, 1, NamedBitList) of
+ {_ValName, ValPos} ->
+ get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]);
+ false ->
+ exit({error,{asn1, {bitstring_namedbit, Val}}})
+ end;
+get_all_bitposes([], _NamedBitList, Ack) ->
+ lists:sort(Ack).
+
+%%%%%%%%%%%%%%%%%%
+%% make_and_set_list([list of positions to set to 1])->
+%% returns list with all in SetPos set.
+%% in positioning in list the first element is 0, the second 1 etc.., but
+%%
+
+make_and_set_list([XPos|SetPos], XPos) ->
+ [1 | make_and_set_list(SetPos, XPos + 1)];
+make_and_set_list([Pos|SetPos], XPos) ->
+ [0 | make_and_set_list([Pos | SetPos], XPos + 1)];
+make_and_set_list([], _) ->
+ [].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% X.691:16
+%% encode_octet_string(Val)
+%% encode_octet_string(Constraint, Val)
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+encode_octet_string(Val) ->
+ try
+ [encode_length(length(Val)),list_to_binary(Val)]
+ catch
+ error:{error,{asn1,{encode_length,_}}} ->
+ encode_fragmented_octet_string(Val)
+ end.
+
+encode_octet_string(C, Val) ->
+ case C of
+ 1 ->
+ list_to_binary(Val);
+ 2 ->
+ list_to_binary(Val);
+ {_,_}=VR ->
+ try
+ [encode_length(VR, length(Val)),list_to_binary(Val)]
+ catch
+ error:{error,{asn1,{encode_length,_}}} ->
+ encode_fragmented_octet_string(Val)
+ end;
+ Sv when is_integer(Sv), Sv =:= length(Val) -> % fixed length
+ if
+ Sv =< 65535 ->
+ list_to_binary(Val);
+ true ->
+ encode_fragmented_octet_string(Val)
+ end;
+ Sv when is_list(Sv) ->
+ try
+ [encode_length({hd(Sv),lists:max(Sv)},
+ length(Val)),list_to_binary(Val)]
+ catch
+ error:{error,{asn1,{encode_length,_}}} ->
+ encode_fragmented_octet_string(Val)
+ end
+ end.
+
+
+encode_fragmented_octet_string(Val) ->
+ Bin = list_to_binary(Val),
+ efos_1(Bin).
+
+efos_1(<<B:16#10000/binary,T/binary>>) ->
+ [<<3:2,4:6>>,B|efos_1(T)];
+efos_1(<<B:16#C000/binary,T/binary>>) ->
+ [<<3:2,3:6>>,B|efos_1(T)];
+efos_1(<<B:16#8000/binary,T/binary>>) ->
+ [<<3:2,2:6>>,B|efos_1(T)];
+efos_1(<<B:16#4000/binary,T/binary>>) ->
+ [<<3:2,1:6>>,B|efos_1(T)];
+efos_1(<<B/bitstring>>) ->
+ Len = byte_size(B),
+ [encode_length(Len),B].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Restricted char string types
+%% (NumericString, PrintableString,VisibleString,IA5String,BMPString,UniversalString)
+%% X.691:26 and X.680:34-36
+%%encode_restricted_string('BMPString',Constraints,Extension,Val)
+
+
+encode_restricted_string(Val) when is_list(Val)->
+ [encode_length(length(Val)),list_to_binary(Val)].
+
+encode_known_multiplier_string(StringType, C, Val) ->
+ Result = chars_encode(C, StringType, Val),
+ NumBits = get_NumBits(C, StringType),
+ case get_constraint(C, 'SizeConstraint') of
+ Ub when is_integer(Ub), Ub*NumBits =< 16 ->
+ Result;
+ 0 ->
+ [];
+ Ub when is_integer(Ub),Ub =<65535 -> % fixed length
+ Result;
+ {Ub,Lb} ->
+ [encode_length({Ub,Lb}, length(Val)),Result];
+ Vl when is_list(Vl) ->
+ [encode_length({lists:min(Vl),lists:max(Vl)}, length(Val)),Result];
+ no ->
+ [encode_length(length(Val)),Result]
+ end.
+
+encode_NumericString(C,Val) ->
+ encode_known_multiplier_string('NumericString',C,Val).
+
+encode_PrintableString(C,Val) ->
+ encode_known_multiplier_string('PrintableString',C,Val).
+
+encode_VisibleString(C,Val) -> % equivalent with ISO646String
+ encode_known_multiplier_string('VisibleString',C,Val).
+
+encode_IA5String(C,Val) ->
+ encode_known_multiplier_string('IA5String',C,Val).
+
+encode_BMPString(C,Val) ->
+ encode_known_multiplier_string('BMPString',C,Val).
+
+encode_UniversalString(C,Val) ->
+ encode_known_multiplier_string('UniversalString',C,Val).
+
+
+%% end of known-multiplier strings for which PER visible constraints are
+%% applied
+
+encode_GeneralString(_C,Val) ->
+ encode_restricted_string(Val).
+
+encode_GraphicString(_C,Val) ->
+ encode_restricted_string(Val).
+
+encode_ObjectDescriptor(_C,Val) ->
+ encode_restricted_string(Val).
+
+encode_TeletexString(_C,Val) -> % equivalent with T61String
+ encode_restricted_string(Val).
+
+encode_VideotexString(_C,Val) ->
+ encode_restricted_string(Val).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% chars_encode(C,StringType,Value) -> ValueList
+%%
+%% encodes chars according to the per rules taking the constraint PermittedAlphabet
+%% into account.
+%% This function does only encode the value part and NOT the length
+
+chars_encode(C,StringType,Value) ->
+ case {StringType,get_constraint(C,'PermittedAlphabet')} of
+ {'UniversalString',{_,_Sv}} ->
+ exit({error,{asn1,{'not implemented',"UniversalString with PermittedAlphabet constraint"}}});
+ {'BMPString',{_,_Sv}} ->
+ exit({error,{asn1,{'not implemented',"BMPString with PermittedAlphabet constraint"}}});
+ _ ->
+ {NumBits,CharOutTab} = {get_NumBits(C,StringType),get_CharOutTab(C,StringType)},
+ chars_encode2(Value,NumBits,CharOutTab)
+ end.
+
+chars_encode2([H|T],NumBits,{Min,Max,notab}) when H =< Max, H >= Min ->
+ [<<(H-Min):NumBits>>|chars_encode2(T,NumBits,{Min,Max,notab})];
+chars_encode2([H|T],NumBits,{Min,Max,Tab}) when H =< Max, H >= Min ->
+ Ch = exit_if_false(H,element(H-Min+1,Tab)),
+ [<<Ch:NumBits>>|chars_encode2(T,NumBits,{Min,Max,Tab})];
+chars_encode2([{A,B,C,D}|T],NumBits,{Min,Max,notab}) ->
+ %% no value range check here (ought to be, but very expensive)
+ Ch = ((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,
+ [<<Ch:NumBits>>|chars_encode2(T,NumBits,{Min,Max,notab})];
+chars_encode2([{A,B,C,D}|T],NumBits,{Min,Max,Tab}) ->
+ %% no value range check here (ought to be, but very expensive)
+ Ch = exit_if_false({A,B,C,D},element(((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,Tab)),
+ [<<Ch:NumBits>>|chars_encode2(T,NumBits,{Min,Max,notab})];
+chars_encode2([H|_T],_,{_,_,_}) ->
+ exit({error,{asn1,{illegal_char_value,H}}});
+chars_encode2([],_,_) ->
+ [].
+
+exit_if_false(V,false)->
+ exit({error,{asn1,{"illegal value according to Permitted alphabet constraint",V}}});
+exit_if_false(_,V) ->V.
+
+
+get_NumBits(C,StringType) ->
+ case get_constraint(C,'PermittedAlphabet') of
+ {'SingleValue',Sv} ->
+ charbits(length(Sv));
+ no ->
+ case StringType of
+ 'IA5String' ->
+ charbits(128); % 16#00..16#7F
+ 'VisibleString' ->
+ charbits(95); % 16#20..16#7E
+ 'PrintableString' ->
+ charbits(74); % [$\s,$',$(,$),$+,$,,$-,$.,$/,"0123456789",$:,$=,$?,$A..$Z,$a..$z
+ 'NumericString' ->
+ charbits(11); % $ ,"0123456789"
+ 'UniversalString' ->
+ 32;
+ 'BMPString' ->
+ 16
+ end
+ end.
+
+get_CharOutTab(C,StringType) ->
+ case get_constraint(C,'PermittedAlphabet') of
+ {'SingleValue',Sv} ->
+ get_CharTab2(C,StringType,hd(Sv),lists:max(Sv),Sv);
+ no ->
+ case StringType of
+ 'IA5String' ->
+ {0,16#7F,notab};
+ 'VisibleString' ->
+ get_CharTab2(C,StringType,16#20,16#7F,notab);
+ 'PrintableString' ->
+ Chars = lists:sort(
+ " '()+,-./0123456789:=?ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"),
+ get_CharTab2(C,StringType,hd(Chars),lists:max(Chars),Chars);
+ 'NumericString' ->
+ get_CharTab2(C,StringType,16#20,$9," 0123456789");
+ 'UniversalString' ->
+ {0,16#FFFFFFFF,notab};
+ 'BMPString' ->
+ {0,16#FFFF,notab}
+ end
+ end.
+
+get_CharTab2(C,StringType,Min,Max,Chars) ->
+ BitValMax = (1 bsl get_NumBits(C,StringType))-1,
+ if
+ Max =< BitValMax ->
+ {0,Max,notab};
+ true ->
+ {Min,Max,create_char_tab(Min,Chars)}
+ end.
+
+create_char_tab(Min,L) ->
+ list_to_tuple(create_char_tab(Min,L,0)).
+create_char_tab(Min,[Min|T],V) ->
+ [V|create_char_tab(Min+1,T,V+1)];
+create_char_tab(_Min,[],_V) ->
+ [];
+create_char_tab(Min,L,V) ->
+ [false|create_char_tab(Min+1,L,V)].
+
+%% See Table 20.3 in Dubuisson
+charbits(NumOfChars) when NumOfChars =< 2 -> 1;
+charbits(NumOfChars) when NumOfChars =< 4 -> 2;
+charbits(NumOfChars) when NumOfChars =< 8 -> 3;
+charbits(NumOfChars) when NumOfChars =< 16 -> 4;
+charbits(NumOfChars) when NumOfChars =< 32 -> 5;
+charbits(NumOfChars) when NumOfChars =< 64 -> 6;
+charbits(NumOfChars) when NumOfChars =< 128 -> 7;
+charbits(NumOfChars) when NumOfChars =< 256 -> 8;
+charbits(NumOfChars) when NumOfChars =< 512 -> 9;
+charbits(NumOfChars) when NumOfChars =< 1024 -> 10;
+charbits(NumOfChars) when NumOfChars =< 2048 -> 11;
+charbits(NumOfChars) when NumOfChars =< 4096 -> 12;
+charbits(NumOfChars) when NumOfChars =< 8192 -> 13;
+charbits(NumOfChars) when NumOfChars =< 16384 -> 14;
+charbits(NumOfChars) when NumOfChars =< 32768 -> 15;
+charbits(NumOfChars) when NumOfChars =< 65536 -> 16;
+charbits(NumOfChars) when is_integer(NumOfChars) ->
+ 16 + charbits1(NumOfChars bsr 16).
+
+charbits1(0) ->
+ 0;
+charbits1(NumOfChars) ->
+ 1 + charbits1(NumOfChars bsr 1).
+
+
+%% UTF8String
+encode_UTF8String(Val) when is_binary(Val) ->
+ [encode_length(byte_size(Val)),Val];
+encode_UTF8String(Val) ->
+ Bin = list_to_binary(Val),
+ encode_UTF8String(Bin).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_object_identifier(Val) -> CompleteList
+%% encode_object_identifier({Name,Val}) -> CompleteList
+%% Val -> {Int1,Int2,...,IntN} % N >= 2
+%% Name -> atom()
+%% Int1 -> integer(0..2)
+%% Int2 -> integer(0..39) when Int1 (0..1) else integer()
+%% Int3-N -> integer()
+%% CompleteList -> [binary()|bitstring()|list()]
+%%
+encode_object_identifier(Val) ->
+ OctetList = e_object_identifier(Val),
+ Octets = list_to_binary(OctetList), % performs a flatten at the same time
+ [encode_length(byte_size(Octets)),Octets].
+
+%% This code is copied from asn1_encode.erl (BER) and corrected and modified
+
+e_object_identifier({'OBJECT IDENTIFIER',V}) ->
+ e_object_identifier(V);
+e_object_identifier(V) when is_tuple(V) ->
+ e_object_identifier(tuple_to_list(V));
+
+%% E1 = 0|1|2 and (E2 < 40 when E1 = 0|1)
+e_object_identifier([E1,E2|Tail]) when E1 >= 0, E1 < 2, E2 < 40 ; E1==2 ->
+ Head = 40*E1 + E2, % weird
+ e_object_elements([Head|Tail],[]);
+e_object_identifier(Oid=[_,_|_Tail]) ->
+ exit({error,{asn1,{'illegal_value',Oid}}}).
+
+e_object_elements([],Acc) ->
+ lists:reverse(Acc);
+e_object_elements([H|T],Acc) ->
+ e_object_elements(T,[e_object_element(H)|Acc]).
+
+e_object_element(Num) when Num < 128 ->
+ [Num];
+e_object_element(Num) ->
+ [e_o_e(Num bsr 7)|[Num band 2#1111111]].
+e_o_e(Num) when Num < 128 ->
+ Num bor 2#10000000;
+e_o_e(Num) ->
+ [e_o_e(Num bsr 7)|[(Num band 2#1111111) bor 2#10000000]].
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% encode_relative_oid(Val) -> CompleteList
+%% encode_relative_oid({Name,Val}) -> CompleteList
+encode_relative_oid(Val) when is_tuple(Val) ->
+ encode_relative_oid(tuple_to_list(Val));
+encode_relative_oid(Val) when is_list(Val) ->
+ Octets = list_to_binary([e_object_element(X)||X <- Val]),
+ [encode_length(byte_size(Octets)),Octets].
+
+
+get_constraint([{Key,V}],Key) ->
+ V;
+get_constraint([],_Key) ->
+ no;
+get_constraint(C,Key) ->
+ case lists:keyfind(Key, 1, C) of
+ false ->
+ no;
+ {_,V} ->
+ V
+ end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% complete(InList) -> ByteList
+%% Takes a coded list with bits and bytes and converts it to a list of bytes
+%% Should be applied as the last step at encode of a complete ASN.1 type
+%%
+complete(InList) when is_list(InList) ->
+ case complete1(InList) of
+ <<>> ->
+ <<0>>;
+ Res ->
+ case bit_size(Res) band 7 of
+ 0 -> Res;
+ Bits -> <<Res/bitstring,0:(8-Bits)>>
+ end
+ end;
+complete(InList) when is_binary(InList) ->
+ InList;
+complete(InList) when is_bitstring(InList) ->
+ PadLen = 8 - (bit_size(InList) band 7),
+ <<InList/bitstring,0:PadLen>>.
+
+complete1(L) when is_list(L) ->
+ list_to_bitstring(L).
+
+%% Special version of complete that does not align the completed message.
+complete_NFP(InList) when is_list(InList) ->
+ list_to_bitstring(InList);
+complete_NFP(InList) when is_bitstring(InList) ->
+ InList.
+
+%% unaligned helpers
+
+%% 10.5.6 NOTE: If "range" satisfies the inequality 2^m < "range" =<
+%% 2^(m+1) then the number of bits = m + 1
+
+num_bits(N) -> num_bits(N, 1, 0).
+
+num_bits(N,T,B) when N =< T -> B;
+num_bits(N,T,B) -> num_bits(N, T bsl 1, B+1).
diff --git a/lib/asn1/src/prepare_templates.erl b/lib/asn1/src/prepare_templates.erl
new file mode 100644
index 0000000000..83155b2e52
--- /dev/null
+++ b/lib/asn1/src/prepare_templates.erl
@@ -0,0 +1,135 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(prepare_templates).
+-export([gen_asn1ct_rtt/1,gen_asn1ct_eval/1]).
+
+gen_asn1ct_rtt(Ms) ->
+ io:format("%% Generated by ~s. DO NOT EDIT THIS FILE.\n"
+ "%%\n"
+ "%% Input files:\n", [?MODULE]),
+ [io:put_chars(["%% ",M,$\n]) || M <- Ms],
+ io:nl(),
+ io:put_chars("-module(asn1ct_rtt).\n"
+ "-export([assert_defined/1,dependencies/1,code/0]).\n"
+ "\n"),
+ Forms = lists:sort(lists:append([abstract(M) || M <- Ms])),
+ Exp = lists:sort(exports(Forms)),
+ defined(Exp),
+ io:nl(),
+ Calls = calls(Forms),
+ R = sofs:relation(Calls),
+ Fam0 = sofs:relation_to_family(R),
+ Fam = sofs:to_external(Fam0),
+ dependencies(Fam),
+ io:nl(),
+ Funcs = [begin
+ Bin = list_to_binary([$\n|erl_pp:function(Func)]),
+ {{M,F,A},Bin}
+ end || {M,{function,_,F,A,_}=Func} <- Forms],
+ io:format("code() ->\n~p.\n\n", [Funcs]),
+ halt(0).
+
+gen_asn1ct_eval([File]) ->
+ {ok,Funcs} = file:consult(File),
+ asn1ct_func:start_link(),
+ [asn1ct_func:need(MFA) || MFA <- Funcs],
+ io:format("%% Generated by ~s. DO NOT EDIT THIS FILE.\n"
+ "%%\n"
+ "%% Input file: ~s\n\n", [?MODULE,File]),
+ io:format("-module(~s).\n", [filename:rootname(File)]),
+ gen_asn1ct_eval_exp(Funcs),
+ asn1ct_func:generate(group_leader()),
+ halt(0).
+
+gen_asn1ct_eval_exp(Funcs) ->
+ io:put_chars("-export(["),
+ gen_asn1ct_eval_exp_1(Funcs, ""),
+ io:put_chars("]).\n").
+
+gen_asn1ct_eval_exp_1([{_,F,A}|T], Sep) ->
+ io:put_chars(Sep),
+ io:format("~p/~p", [F,A]),
+ gen_asn1ct_eval_exp_1(T, ",\n");
+gen_asn1ct_eval_exp_1([], _) -> ok.
+
+defined([H|T]) ->
+ io:format("assert_defined(~p) -> ok", [H]),
+ case T of
+ [] ->
+ io:put_chars(".\n");
+ [_|_] ->
+ io:put_chars(";\n"),
+ defined(T)
+ end.
+
+dependencies([{K,V}|T]) ->
+ io:format("dependencies(~p) ->\n~p;\n", [K,V]),
+ dependencies(T);
+dependencies([]) ->
+ io:put_chars("dependencies(_) -> [].\n").
+
+abstract(File) ->
+ {ok,{M0,[{abstract_code,Abstract}]}} =
+ beam_lib:chunks(File, [abstract_code]),
+ {raw_abstract_v1,Forms} = Abstract,
+ M = module(M0),
+ [{M,F} || F <- Forms].
+
+module(M0) ->
+ "asn1rtt_" ++ M = atom_to_list(M0),
+ list_to_atom(M).
+
+exports([{M,{attribute,_,export,L}}|T]) ->
+ [{M,F,A} || {F,A} <- L] ++ exports(T);
+exports([_|T]) ->
+ exports(T);
+exports([]) -> [].
+
+calls([{M,{function,_,F,A,Body}}|T]) ->
+ MFA = {M,F,A},
+ case find_calls(Body, M) -- [MFA] of
+ [] ->
+ calls(T);
+ [_|_]=Calls ->
+ [{MFA,Callee} || Callee <- Calls] ++ calls(T)
+ end;
+calls([_|T]) ->
+ calls(T);
+calls([]) -> [].
+
+find_calls([{call,_,{atom,_,F},Args}|T], M) ->
+ Calls = find_calls(Args, M) ++ find_calls(T, M),
+ Arity = length(Args),
+ case is_bif(F, Arity) of
+ false ->
+ [{M,F,Arity}|Calls];
+ true ->
+ Calls
+ end;
+find_calls([{'fun',_,{function,F,A}}|T], M) ->
+ [{M,F,A}|find_calls(T, M)];
+find_calls([H|T], M) ->
+ find_calls(H, M) ++ find_calls(T, M);
+find_calls(Tuple, M) when is_tuple(Tuple) ->
+ find_calls(tuple_to_list(Tuple), M);
+find_calls(_, _) -> [].
+
+is_bif(F, Arity) ->
+ erl_internal:bif(F, Arity).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 05:01:36 +0000