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authorBjörn Gustavsson <[email protected]>2012-12-14 21:07:39 +0100
committerBjörn Gustavsson <[email protected]>2013-01-22 19:20:09 +0100
commit8cc1f6e814fb4cfe69cb1f80138c630377d26b57 (patch)
tree8064a064abf7672c123f77723108f41bd7b74dc9 /lib/asn1
parent60e73d24cfec506b966ff789c8420bc4f466f880 (diff)
downloadotp-8cc1f6e814fb4cfe69cb1f80138c630377d26b57.tar.gz
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Add run-time library templates and use them
The template modules (asn1rtt_*.erl) are based on the existing run-time modules, but with some simplifications and improvements, for example: The run-time functions for BER encoding took a Constraint argument which was not used. It has been eliminated, along with the unused StringType argument for the encode_restricted_string function. The Range argument for decode_enumerated() has been dropped since it was not used.
Diffstat (limited to 'lib/asn1')
-rw-r--r--lib/asn1/src/Makefile6
-rw-r--r--lib/asn1/src/asn1ct.erl4
-rw-r--r--lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl85
-rw-r--r--lib/asn1/src/asn1ct_constructed_per.erl95
-rw-r--r--lib/asn1/src/asn1ct_gen.erl64
-rw-r--r--lib/asn1/src/asn1ct_gen_ber_bin_v2.erl372
-rw-r--r--lib/asn1/src/asn1ct_gen_per.erl200
-rw-r--r--lib/asn1/src/asn1ct_gen_per_rt2ct.erl131
-rw-r--r--lib/asn1/src/asn1ct_imm.erl10
-rw-r--r--lib/asn1/src/asn1rt_ber_bin_v2.erl1
-rw-r--r--lib/asn1/src/asn1rtt_ber.erl1619
-rw-r--r--lib/asn1/src/asn1rtt_per.erl1334
-rw-r--r--lib/asn1/src/asn1rtt_real_common.erl292
-rw-r--r--lib/asn1/src/asn1rtt_uper.erl1379
-rw-r--r--lib/asn1/test/asn1_SUITE_data/Prim.asn16
15 files changed, 5084 insertions, 514 deletions
diff --git a/lib/asn1/src/Makefile b/lib/asn1/src/Makefile
index 4096dd4db6..75ffdd66c7 100644
--- a/lib/asn1/src/Makefile
+++ b/lib/asn1/src/Makefile
@@ -173,7 +173,11 @@ release_docs_spec:
# Run-time library template files.
#
-RT_TEMPLATES = asn1rtt_per_common
+RT_TEMPLATES = asn1rtt_per_common \
+ asn1rtt_real_common \
+ asn1rtt_ber \
+ asn1rtt_per \
+ asn1rtt_uper
RT_TEMPLATES_ERL = $(RT_TEMPLATES:%=%.erl)
RT_TEMPLATES_TARGET = $(RT_TEMPLATES:%=%.$(EMULATOR))
diff --git a/lib/asn1/src/asn1ct.erl b/lib/asn1/src/asn1ct.erl
index 98877320a0..e361654a81 100644
--- a/lib/asn1/src/asn1ct.erl
+++ b/lib/asn1/src/asn1ct.erl
@@ -115,13 +115,11 @@ 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)),
@@ -183,7 +181,6 @@ 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 +205,6 @@ 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,
diff --git a/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl b/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl
index 78cb9297d8..021002c3b3 100644
--- a/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl
+++ b/lib/asn1/src/asn1ct_constructed_ber_bin_v2.erl
@@ -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),
@@ -371,7 +373,8 @@ 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 +495,8 @@ 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 +516,8 @@ 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 +555,9 @@ 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 +677,9 @@ 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 +811,8 @@ 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 +865,8 @@ 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 +882,8 @@ 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 +1024,20 @@ 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 +1235,11 @@ 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 +1252,7 @@ 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 +1260,7 @@ 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 +1292,6 @@ 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 +1310,6 @@ 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 +1382,8 @@ 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 +1512,6 @@ 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 e8ec49d0c2..5520b41541 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 ** **********
@@ -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"]),
", ";
_ ->
""
@@ -513,7 +516,7 @@ 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 +530,7 @@ 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 +557,20 @@ 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 +1014,9 @@ 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 +1028,9 @@ 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 +1040,10 @@ 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 +1122,9 @@ 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,
@@ -1559,29 +1577,33 @@ gen_dec_prim(Ctgenmod, Erule, Type) ->
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 +1672,18 @@ 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 +1694,9 @@ 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_gen.erl b/lib/asn1/src/asn1ct_gen.erl
index 67efbcc532..eaca7d6ec3 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
@@ -534,7 +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,
@@ -928,13 +928,16 @@ pgen_dispatcher(Erules,_Module,{Types,_Values,_,_,_Objects,_ObjectSets}) ->
{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,
@@ -958,12 +961,11 @@ 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"
@@ -1048,16 +1050,16 @@ 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]),
@@ -1101,9 +1103,6 @@ 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);
@@ -1393,23 +1392,19 @@ 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}),
@@ -1421,7 +1416,6 @@ gen_head(Erules,Mod,Hrl) ->
_ ->
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]).
diff --git a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
index 664dfc2086..0826384365 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,
@@ -555,141 +501,154 @@ gen_dec_prim(Erules,Att,BytesVar,DoTag,TagIn,Form,OptOrMand) ->
% 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});
+ ok;
{'BIT STRING',NamedNumberList} ->
case get(compact_bit_string) of
true ->
- emit({"?RT_BER:decode_compact_bit_string(",
+ emit(["decode_compact_bit_string(",
BytesVar,",",{asis,Constraint},",",
- {asis,NamedNumberList},","}),
- add_func({decode_compact_bit_string,4});
+ {asis,NamedNumberList},","]),
+ need(decode_compact_bit_string, 4);
_ ->
- emit({"?RT_BER:decode_bit_string(",BytesVar,",",
+ emit(["decode_bit_string(",BytesVar,",",
{asis,Constraint},",",
- {asis,NamedNumberList},","}),
- add_func({decode_bit_string,4})
+ {asis,NamedNumberList},","]),
+ need(decode_bit_string, 4)
end;
'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});
+ emit(["decode_restricted_string(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_ObjectDescriptor},","]),
+ need(decode_restricted_string, 4);
'OCTET STRING' ->
- emit({"?RT_BER:decode_octet_string",AsBin,"(",BytesVar,",",{asis,Constraint},","}),
- add_func({decode_octet_string,3});
+ emit(["decode_octet_string",AsBin,"(",BytesVar,",",
+ {asis,Constraint},","]),
+ need(decode_octet_string, 3);
'NumericString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_NumericString},","}),
- add_func({decode_restricted_string,4});
+ emit(["decode_restricted_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_NumericString},","]),
+ need(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});
+ emit(["decode_restricted_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_TeletexString},","]),
+ need(decode_restricted_string, 4);
'VideotexString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_VideotexString},","}),
- add_func({decode_restricted_string,4});
+ emit(["decode_restricted_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_VideotexString},","]),
+ need(decode_restricted_string, 4);
'GraphicString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_GraphicString},","}),
- add_func({decode_restricted_string,4});
+ emit(["decode_restricted_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_GraphicString},","]),
+ need(decode_restricted_string, 4);
'VisibleString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_VisibleString},","}),
- add_func({decode_restricted_string,4});
+ emit(["decode_restricted_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_VisibleString},","]),
+ need(decode_restricted_string, 4);
'GeneralString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_GeneralString},","}),
- add_func({decode_restricted_string,4});
+ emit(["decode_restricted_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_GeneralString},","]),
+ need(decode_restricted_string, 4);
'PrintableString' ->
- emit({"?RT_BER:decode_restricted_string",AsBin,"(",
- BytesVar,",",{asis,Constraint},",",{asis,?T_PrintableString},","}),
- add_func({decode_restricted_string,4});
+ emit(["decode_restricted_string",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_PrintableString},","]),
+ need(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",AsBin,"(",
+ BytesVar,",",{asis,Constraint},",",
+ {asis,?T_IA5String},","]),
+ need(decode_restricted_string, 4);
'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
+ '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.
@@ -1015,7 +974,7 @@ 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 +1408,22 @@ 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 +1714,6 @@ 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 +1725,8 @@ 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..08b65d466d 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
@@ -134,14 +135,13 @@ 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}}],
@@ -153,7 +153,6 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
{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);
{'ENUMERATED',NamedNumberList} ->
NewList = [X||{X,_} <- NamedNumberList],
@@ -168,73 +167,68 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
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},")"});
+ call(Erules, encode_bit_string,
+ [{asis,Constraint},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,")"});
+ call(Erules, encode_octet_string, [{asis,Constraint},Value]);
'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} ->
@@ -246,6 +240,15 @@ 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}]},",",
+ {curr,tmpval},"]",nl,
+ "end"]).
emit_enc_enumerated_cases(Erule,C, [H], Count) ->
emit_enc_enumerated_case(Erule,C, H, Count),
@@ -264,27 +267,17 @@ emit_enc_enumerated_cases(Erule, C, [H1,H2|T], Count) ->
emit_enc_enumerated_cases(Erule, C, [H2|T], Count+1).
-
-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,")"]).
+emit_enc_enumerated_case(uper=Erules,_C, {1,EnumName}, Count) ->
+ emit(["'",EnumName,"' -> [<<1:1>>,",
+ {call,Erules,encode_small_number,[Count]},"]"]);
+emit_enc_enumerated_case(uper=Erules, C, {0,EnumName}, Count) ->
+ emit(["'",EnumName,"' -> [<<0:1>>,",
+ {call,Erules,encode_integer,[{asis,C},Count]},"]"]);
+emit_enc_enumerated_case(Erules, C, EnumName, Count) ->
+ emit(["'",EnumName,"' -> ",
+ {call,Erules,encode_integer,[{asis,C},Count]}]).
get_constraint([{Key,V}], Key) ->
V;
@@ -446,7 +439,7 @@ 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 +577,7 @@ 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 +838,7 @@ 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 +981,7 @@ 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 +999,7 @@ 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)"});
@@ -1120,6 +1113,8 @@ 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('REAL', _Constraint, Aligned) ->
+ asn1ct_imm:per_dec_real(Aligned);
gen_dec_imm_1(_, _, _) -> no.
gen_dec_prim(Erule, Type, BytesVar) ->
@@ -1134,68 +1129,55 @@ 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;
+ Func = case get(compact_bit_string) of
+ true -> decode_compact_bit_string;
+ _ -> decode_bit_string
+ end,
+ call(Erule, Func,
+ [BytesVar,{asis,Constraint},
+ {asis,NamedNumberList}]);
'NULL' ->
emit({"{'NULL',",BytesVar,"}"});
'OBJECT IDENTIFIER' ->
- emit({"?RT_PER:decode_object_identifier(",
- BytesVar,")"});
+ call(Erule, decode_object_identifier, [BytesVar]);
'RELATIVE-OID' ->
- emit({"?RT_PER:decode_relative_oid(",
- BytesVar,")"});
+ call(Erule, decode_relative_oid, [BytesVar]);
'ObjectDescriptor' ->
- emit({"?RT_PER:decode_ObjectDescriptor(",
- BytesVar,")"});
+ call(Erule, decode_ObjectDescriptor, [BytesVar]);
'NumericString' ->
- emit({"?RT_PER:decode_NumericString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_NumericString,
+ [BytesVar,{asis,Constraint}]);
TString when TString == 'TeletexString';
TString == 'T61String' ->
- emit({"?RT_PER:decode_TeletexString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_TeletexString,
+ [BytesVar,{asis,Constraint}]);
'VideotexString' ->
- emit({"?RT_PER:decode_VideotexString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_VideotexString,
+ [BytesVar,{asis,Constraint}]);
'UTCTime' ->
- emit({"?RT_PER:decode_VisibleString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_VisibleString, [BytesVar,{asis,Constraint}]);
'GeneralizedTime' ->
- emit({"?RT_PER:decode_VisibleString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_VisibleString, [BytesVar,{asis,Constraint}]);
'GraphicString' ->
- emit({"?RT_PER:decode_GraphicString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_GraphicString,[BytesVar,{asis,Constraint}]);
'VisibleString' ->
- emit({"?RT_PER:decode_VisibleString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_VisibleString, [BytesVar,{asis,Constraint}]);
'GeneralString' ->
- emit({"?RT_PER:decode_GeneralString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_GeneralString, [BytesVar,{asis,Constraint}]);
'PrintableString' ->
- emit({"?RT_PER:decode_PrintableString(",BytesVar,",",{asis,Constraint},")"});
+ call(Erule, decode_PrintableString,
+ [BytesVar,{asis,Constraint}]);
'IA5String' ->
- emit({"?RT_PER:decode_IA5String(",BytesVar,",",{asis,Constraint},")"});
+ call(Erule, decode_IA5String, [BytesVar,{asis,Constraint}]);
'BMPString' ->
- emit({"?RT_PER:decode_BMPString(",BytesVar,",",
- {asis,Constraint},")"});
+ call(Erule, decode_BMPString,
+ [BytesVar,{asis,Constraint}]);
'UniversalString' ->
- emit({"?RT_PER:decode_UniversalString(",BytesVar,
- ",",{asis,Constraint},")"});
+ call(Erule, decode_UniversalString,
+ [BytesVar,{asis,Constraint}]);
'UTF8String' ->
- emit({"?RT_PER:decode_UTF8String(",BytesVar,")"});
+ call(Erule, decode_UTF8String, [BytesVar]);
#'ObjectClassFieldType'{} ->
case asn1ct_gen:get_inner(Typename) of
{fixedtypevaluefield,_,InnerType} ->
diff --git a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl
index 4f4563833f..b1ecfa135d 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
@@ -152,26 +153,27 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) ->
emit_enc_integer(Erules,NewC,NewVal);
'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 +187,19 @@ 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 +209,23 @@ 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 +237,17 @@ 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
@@ -254,13 +267,13 @@ 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_enc_k_m_string(SizeC, NumBits, CharOutTab, Value) ->
+ call(per, encode_known_multiplier_string,
+ [{asis,SizeC},NumBits,{asis,CharOutTab},Value]).
emit_dec_known_multiplier_string(StringType,C,BytesVar) ->
SizeC = get_constraint(C,'SizeConstraint'),
@@ -280,9 +293,9 @@ emit_dec_known_multiplier_string(StringType,C,BytesVar) ->
0 ->
emit({"{[],",BytesVar,"}"});
_ ->
- emit({"?RT_PER:decode_known_multiplier_string(",
- {asis,StringType},",",{asis,SizeC},",",NumBits,
- ",",{asis,CharInTab},",",BytesVar,")"})
+ call(per, decode_known_multiplier_string,
+ [{asis,StringType},{asis,SizeC},NumBits,
+ {asis,CharInTab},BytesVar])
end.
@@ -397,7 +410,7 @@ 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 +459,8 @@ 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) ->
@@ -533,10 +547,8 @@ emit_enc_integer(_Erule,[{_,{Lb,Ub},Range,_}],Value) when Range =< 65536 ->
nl," end",nl]),
emit_enc_integer_end_case();
-
-emit_enc_integer(_Erule,C,Value) ->
- emit({" ?RT_PER:encode_integer(",{asis,C},",",Value,")"}).
-
+emit_enc_integer(Erule, C, Value) ->
+ call(Erule, encode_integer, [{asis,C},Value]).
@@ -582,16 +594,15 @@ emit_enc_enumerated_cases(Erule, C, [H1,H2|T], Count) ->
%% %% 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) ->
+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(["'",EnumName,"' -> [1,"]),
+ call(Erule, encode_small_number, [Count]),
+ emit("]");
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.
@@ -1367,7 +1378,7 @@ 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)"});
@@ -1465,30 +1476,18 @@ gen_dec_prim(Erules,Att,BytesVar) ->
{'INTEGER',_NamedNumberList} ->
asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'REAL' ->
- emit(["?RT_PER:decode_real(",BytesVar,")"]);
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, 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;
+ {'BIT STRING',_} ->
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'NULL' ->
emit({"{'NULL',",BytesVar,"}"});
'OBJECT IDENTIFIER' ->
- emit({"?RT_PER:decode_object_identifier(",
- BytesVar,")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'RELATIVE-OID' ->
- emit({"?RT_PER:decode_relative_oid(",
- BytesVar,")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'ObjectDescriptor' ->
- emit({"?RT_PER:decode_ObjectDescriptor(",
- BytesVar,")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
{'ENUMERATED',_} ->
asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'BOOLEAN'->
@@ -1502,12 +1501,10 @@ gen_dec_prim(Erules,Att,BytesVar) ->
Constraint,BytesVar);
TString when TString == 'TeletexString';
TString == 'T61String' ->
- emit({"?RT_PER:decode_TeletexString(",BytesVar,",",
- {asis,Constraint},")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'VideotexString' ->
- emit({"?RT_PER:decode_VideotexString(",BytesVar,",",
- {asis,Constraint},")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'UTCTime' ->
emit_dec_known_multiplier_string('VisibleString',
@@ -1516,15 +1513,13 @@ gen_dec_prim(Erules,Att,BytesVar) ->
emit_dec_known_multiplier_string('VisibleString',
Constraint,BytesVar);
'GraphicString' ->
- emit({"?RT_PER:decode_GraphicString(",BytesVar,",",
- {asis,Constraint},")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'VisibleString' ->
emit_dec_known_multiplier_string('VisibleString',
Constraint,BytesVar);
'GeneralString' ->
- emit({"?RT_PER:decode_GeneralString(",BytesVar,",",
- {asis,Constraint},")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'PrintableString' ->
emit_dec_known_multiplier_string('PrintableString',
@@ -1540,7 +1535,7 @@ gen_dec_prim(Erules,Att,BytesVar) ->
Constraint,BytesVar);
'UTF8String' ->
- emit({"?RT_PER:decode_UTF8String(",BytesVar,")"});
+ asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'ANY' ->
asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar);
'ASN1_OPEN_TYPE' ->
diff --git a/lib/asn1/src/asn1ct_imm.erl b/lib/asn1/src/asn1ct_imm.erl
index d27bea98d0..384d4a86bb 100644
--- a/lib/asn1/src/asn1ct_imm.erl
+++ b/lib/asn1/src/asn1ct_imm.erl
@@ -21,7 +21,7 @@
-export([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_octet_string/2,per_dec_open_type/1,per_dec_real/1]).
-export([optimize_alignment/1,optimize_alignment/2,
dec_slim_cg/2,dec_code_gen/2]).
-export([effective_constraint/2]).
@@ -107,6 +107,14 @@ 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}]}}.
%%%
%%% Local functions.
diff --git a/lib/asn1/src/asn1rt_ber_bin_v2.erl b/lib/asn1/src/asn1rt_ber_bin_v2.erl
index 92ca11cf89..10deecee6e 100644
--- a/lib/asn1/src/asn1rt_ber_bin_v2.erl
+++ b/lib/asn1/src/asn1rt_ber_bin_v2.erl
@@ -24,6 +24,7 @@
-export([decode/1, decode/2, match_tags/2, encode/1, encode/2]).
-export([fixoptionals/2,
encode_tag_val/1,
+ encode_tags/2,
encode_tags/3,
skip_ExtensionAdditions/2]).
-export([encode_boolean/2,decode_boolean/2,
diff --git a/lib/asn1/src/asn1rtt_ber.erl b/lib/asn1/src/asn1rtt_ber.erl
new file mode 100644
index 0000000000..b374191f37
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_ber.erl
@@ -0,0 +1,1619 @@
+%%
+%% %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_bit_string/4,
+ decode_compact_bit_string/4,
+ 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/2,decode_restricted_string/4,
+ 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) ->
+ case asn1rt_nif:decode_ber_tlv(B) of
+ {error, Reason} -> handle_error(Reason, B);
+ Else -> Else
+ end.
+
+ber_decode_erlang(B) when is_binary(B) ->
+ decode_primitive(B);
+ber_decode_erlang(Tlv) ->
+ {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) ->
+ 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,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
+%% (Buffer, Range, NamedNumberList, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
+%%============================================================================
+
+decode_compact_bit_string(Buffer, Range, NamedNumberList, Tags) ->
+ decode_restricted_string(Buffer, Range, ?N_BIT_STRING, Tags,
+ NamedNumberList, bin).
+
+decode_bit_string(Buffer, Range, NamedNumberList, Tags) ->
+ 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(byte_size(Bits), Unused, Bits)
+ end;
+ _ ->
+ 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).
+
+%%============================================================================
+%% decode octet string
+%% (Buffer, Range, HasTag, TotalLen) -> {String, Remain, RemovedBytes}
+%%
+%% Octet string is decoded as a restricted string
+%%============================================================================
+decode_octet_string(Buffer, Range, Tags) ->
+ decode_restricted_string(Buffer, Range, ?N_OCTET_STRING,
+ Tags, [], old).
+
+%%============================================================================
+%% 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
+%% (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 -> % 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).
+
+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) ->
+ {(byte_size(element(2,Val))*8) - element(1,Val),Val};
+ _ when is_binary(Val) ->
+ {byte_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(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(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) ->
+ 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(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)
+%%-------------------------------------------------------------------------
+
+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_per.erl b/lib/asn1/src/asn1rtt_per.erl
new file mode 100644
index 0000000000..d545c8a854
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_per.erl
@@ -0,0 +1,1334 @@
+%%
+%% %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_length/1,
+ encode_length/2,
+ decode_compact_bit_string/3,
+ encode_bit_string/3, decode_bit_string/3,
+ encode_object_identifier/1, decode_object_identifier/1,
+ encode_relative_oid/1, decode_relative_oid/1,
+ complete/1,
+ encode_open_type/1,
+ 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,
+ encode_octet_string/3,
+ encode_known_multiplier_string/4,
+ decode_known_multiplier_string/5,
+ 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, undefined),
+ <<_: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}).
+
+
+%% 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 ->
+ [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.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% 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(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, undefined),
+ 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, 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 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, {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.
+
+%%%%%%%%%%%%%%%
+%% 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:keyfind(Pos, 2, Names) of
+ {Name,_} ->
+ bit_list_or_named1(Pos+1,Bt,Names,[Name|Acc]);
+ false ->
+ 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: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.
+
+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(Val).
+decode_GeneralString(Bytes,_C) ->
+ decode_restricted_string(Bytes,aligned).
+
+encode_GraphicString(_C,Val) ->
+ encode_restricted_string(Val).
+decode_GraphicString(Bytes,_C) ->
+ decode_restricted_string(Bytes,aligned).
+
+encode_ObjectDescriptor(_C,Val) ->
+ encode_restricted_string(Val).
+decode_ObjectDescriptor(Bytes) ->
+ decode_restricted_string(Bytes,aligned).
+
+encode_TeletexString(_C,Val) -> % equivalent with T61String
+ encode_restricted_string(Val).
+decode_TeletexString(Bytes,_C) ->
+ decode_restricted_string(Bytes,aligned).
+
+encode_VideotexString(_C,Val) ->
+ encode_restricted_string(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 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>>].
+
+
+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) ->
+ Sz = byte_size(Val),
+ [encode_length(Sz),octets_to_complete(Sz, 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(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]].
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% 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(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)].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% 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}.
+
+
+get_constraint([{Key,V}],Key) ->
+ V;
+get_constraint([],_) ->
+ 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(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}}).
+
+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_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..bcc11da63a
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_uper.erl
@@ -0,0 +1,1379 @@
+%%
+%% %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_boolean/1,
+ encode_length/1, encode_length/2,
+ 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,
+ complete/1, complete_NFP/1]).
+
+ -export([encode_open_type/1]).
+
+ -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(Bytes0, Nr, ExtensionBitstr) when is_bitstring(ExtensionBitstr) ->
+ Prev = Nr - 1,
+ case ExtensionBitstr of
+ <<_:Prev,1:1,_/bitstring>> ->
+ {Len,Bytes1} = decode_length(Bytes0, undefined),
+ <<_: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}).
+
+
+%% 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) ->
+ 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 =:= byte_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,
+ 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(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, undefined),
+ {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>>,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(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, {Unused,BinBits}=Bin, 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, [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.
+
+%%%%%%%%%%%%%%%
+%% 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};
+ {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:keyfind(Pos, 2, Names) of
+ {Name,_} ->
+ bit_list_or_named1(Pos+1,Bt,Names,[Name|Acc]);
+ false ->
+ 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: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,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(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.
+
+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 ->
+ [<<(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) ->
+ 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(byte_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(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]].
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% 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(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].
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% 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}.
+
+
+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/test/asn1_SUITE_data/Prim.asn1 b/lib/asn1/test/asn1_SUITE_data/Prim.asn1
index 1a905988f5..17a5d3490a 100644
--- a/lib/asn1/test/asn1_SUITE_data/Prim.asn1
+++ b/lib/asn1/test/asn1_SUITE_data/Prim.asn1
@@ -29,4 +29,10 @@ BEGIN
Null ::= NULL
+ -- Test that REAL numbers can co-exist with other data types.
+ App-X-Real ::= REAL (WITH COMPONENTS {
+ mantissa (-16777215..16777215),
+ base (2),
+ exponent (-125..128) } )
+
END
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 16:48:44 +0000