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-rw-r--r--lib/asn1/src/asn1ct_gen_ber_bin_v2.erl157
-rw-r--r--lib/asn1/src/asn1rtt_ber.erl102
2 files changed, 134 insertions, 125 deletions
diff --git a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
index 09cb7c0628..6db31c5ea2 100644
--- a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
+++ b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl
@@ -492,6 +492,11 @@ gen_dec_prim(Att, BytesVar, DoTag) ->
'ObjectDescriptor'-> restricted_string;
'UTCTime' -> restricted_string;
'GeneralizedTime' -> restricted_string;
+ 'OCTET STRING' ->
+ case asn1ct:use_legacy_types() of
+ true -> restricted_string;
+ false -> Typename
+ end;
_ -> Typename
end,
TagStr = case DoTag of
@@ -502,26 +507,23 @@ gen_dec_prim(Att, BytesVar, DoTag) ->
'BOOLEAN'->
call(decode_boolean, [BytesVar,TagStr]);
'INTEGER' ->
- case IntConstr of
- [] ->
- call(decode_integer, [BytesVar,TagStr]);
- {_,_} ->
- call(decode_integer, [BytesVar,{asis,IntConstr},TagStr])
- end;
- {'INTEGER',NamedNumberList} ->
- case IntConstr of
- [] ->
- call(decode_named_integer,
- [BytesVar,
- {asis,NamedNumberList},
- TagStr]);
- {_,_} ->
- call(decode_named_integer,
- [BytesVar,
- {asis,IntConstr},
- {asis,NamedNumberList},
- TagStr])
- end;
+ check_constraint(decode_integer, [BytesVar,TagStr],
+ IntConstr,
+ identity,
+ identity);
+ {'INTEGER',NNL} ->
+ check_constraint(decode_integer,
+ [BytesVar,TagStr],
+ IntConstr,
+ identity,
+ fun(Val) ->
+ asn1ct_name:new(val),
+ emit([{curr,val}," = "]),
+ Val(),
+ emit([com,nl,
+ {call,ber,number2name,
+ [{curr,val},{asis,NNL}]}])
+ end);
{'ENUMERATED',NNL} ->
call(decode_enumerated, [BytesVar,{asis,NNL},TagStr]);
'REAL' ->
@@ -540,32 +542,25 @@ gen_dec_prim(Att, BytesVar, DoTag) ->
'RELATIVE-OID' ->
call(decode_relative_oid, [BytesVar,TagStr]);
'OCTET STRING' ->
- F = case asn1ct:use_legacy_types() of
- false -> decode_octet_string;
- true -> decode_restricted_string
- end,
- case Constraint of
- [] ->
- call(F, [BytesVar,TagStr]);
- _ ->
- call(F, [BytesVar,{asis,Constraint},TagStr])
- end;
+ check_constraint(decode_octet_string, [BytesVar,TagStr],
+ Constraint, {erlang,byte_size}, identity);
restricted_string ->
- case Constraint of
- [] ->
- call(decode_restricted_string,
- [BytesVar,TagStr]);
- _ ->
- call(decode_restricted_string,
- [BytesVar,{asis,Constraint},TagStr])
- end;
+ check_constraint(decode_restricted_string, [BytesVar,TagStr],
+ Constraint,
+ {erlang,byte_size},
+ fun(Val) ->
+ emit("binary_to_list("),
+ Val(),
+ emit(")")
+ end);
'UniversalString' ->
- call(decode_universal_string,
- [BytesVar,{asis,Constraint},TagStr]);
+ check_constraint(decode_universal_string, [BytesVar,TagStr],
+ Constraint, {erlang,length}, identity);
'UTF8String' ->
call(decode_UTF8_string, [BytesVar,TagStr]);
'BMPString' ->
- call(decode_BMP_string, [BytesVar,{asis,Constraint},TagStr]);
+ check_constraint(decode_BMP_string, [BytesVar,TagStr],
+ Constraint, {erlang,length}, identity);
'ASN1_OPEN_TYPE' ->
call(decode_open_type_as_binary, [BytesVar,TagStr])
end.
@@ -583,7 +578,7 @@ int_constr(C) ->
[{'ValueRange',{_,_}=Range}] ->
Range;
[{'SingleValue',Sv}] ->
- {Sv,Sv};
+ Sv;
[] ->
[]
end.
@@ -594,16 +589,82 @@ gen_dec_bit_string(BytesVar, _Constraint, [_|_]=NNL, TagStr) ->
gen_dec_bit_string(BytesVar, Constraint, [], TagStr) ->
case asn1ct:get_bit_string_format() of
compact ->
- call(decode_compact_bit_string,
- [BytesVar,{asis,Constraint},TagStr]);
+ check_constraint(decode_compact_bit_string,
+ [BytesVar,TagStr],
+ Constraint,
+ {ber,compact_bit_string_size},
+ identity);
legacy ->
- call(decode_legacy_bit_string,
- [BytesVar,{asis,Constraint},TagStr]);
+ check_constraint(decode_native_bit_string,
+ [BytesVar,TagStr],
+ Constraint,
+ {erlang,bit_size},
+ fun(Val) ->
+ asn1ct_name:new(val),
+ emit([{curr,val}," = "]),
+ Val(),
+ emit([com,nl,
+ {call,ber,native_to_legacy_bit_string,
+ [{curr,val}]}])
+ end);
bitstring ->
- call(decode_native_bit_string,
- [BytesVar,{asis,Constraint},TagStr])
+ check_constraint(decode_native_bit_string,
+ [BytesVar,TagStr],
+ Constraint,
+ {erlang,bit_size},
+ identity)
end.
+check_constraint(F, Args, Constr, PreConstr0, ReturnVal0) ->
+ PreConstr = case PreConstr0 of
+ identity ->
+ fun(V) -> V end;
+ {Mod,Name} ->
+ fun(V) ->
+ asn1ct_name:new(c),
+ emit([{curr,c}," = ",
+ {call,Mod,Name,[V]},com,nl]),
+ {curr,c}
+ end
+ end,
+ ReturnVal = case ReturnVal0 of
+ identity -> fun(Val) -> Val() end;
+ _ -> ReturnVal0
+ end,
+ case Constr of
+ [] when ReturnVal0 =:= identity ->
+ %% No constraint, no complications.
+ call(F, Args);
+ [] ->
+ %% No constraint, but the return value could consist
+ %% of more than one statement.
+ emit(["begin",nl]),
+ ReturnVal(fun() -> call(F, Args) end),
+ emit([nl,
+ "end",nl]);
+ _ ->
+ %% There is a constraint.
+ asn1ct_name:new(val),
+ emit(["begin",nl,
+ {curr,val}," = ",{call,ber,F,Args},com,nl]),
+ PreVal0 = asn1ct_gen:mk_var(asn1ct_name:curr(val)),
+ PreVal = PreConstr(PreVal0),
+ emit("if "),
+ case Constr of
+ {Min,Max} ->
+ emit([{asis,Min}," =< ",PreVal,", ",
+ PreVal," =< ",{asis,Max}]);
+ Sv when is_integer(Sv) ->
+ emit([PreVal," =:= ",{asis,Sv}])
+ end,
+ emit([" ->",nl]),
+ ReturnVal(fun() -> emit(PreVal0) end),
+ emit([";",nl,
+ "true ->",nl,
+ "exit({error,{asn1,bad_range}})",nl,
+ "end",nl,
+ "end"])
+ end.
%% Object code generating for encoding and decoding
%% ------------------------------------------------
diff --git a/lib/asn1/src/asn1rtt_ber.erl b/lib/asn1/src/asn1rtt_ber.erl
index 4bd814769f..c65e7dea11 100644
--- a/lib/asn1/src/asn1rtt_ber.erl
+++ b/lib/asn1/src/asn1rtt_ber.erl
@@ -26,25 +26,25 @@
skip_ExtensionAdditions/2]).
-export([encode_boolean/2,decode_boolean/2,
encode_integer/2,encode_integer/3,
- decode_integer/2,decode_integer/3,
- decode_named_integer/3,decode_named_integer/4,
+ decode_integer/2,
+ number2name/2,
encode_enumerated/2,decode_enumerated/3,
encode_unnamed_bit_string/2,encode_unnamed_bit_string/3,
encode_named_bit_string/3,encode_named_bit_string/4,
encode_bit_string/4,
decode_named_bit_string/3,
- decode_compact_bit_string/3,
- decode_legacy_bit_string/3,
- decode_native_bit_string/3,
+ decode_compact_bit_string/2,compact_bit_string_size/1,
+ decode_native_bit_string/2,
+ native_to_legacy_bit_string/1,
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_octet_string/2,decode_octet_string/3,
- decode_restricted_string/2,decode_restricted_string/3,
- encode_universal_string/2,decode_universal_string/3,
+ decode_octet_string/2,
+ decode_restricted_string/2,
+ encode_universal_string/2,decode_universal_string/2,
encode_UTF8_string/2,decode_UTF8_string/2,
- encode_BMP_string/2,decode_BMP_string/3]).
+ encode_BMP_string/2,decode_BMP_string/2]).
-export([encode_open_type/2,decode_open_type/2,
decode_open_type_as_binary/2]).
@@ -697,41 +697,17 @@ encode_integer_neg(N, Acc) ->
%%===============================================================================
%% decode integer
-%% (Buffer, Range, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
-%% (Buffer, Range, NamedNumberList, HasTag, TotalLen) -> {Integer, Remain, RemovedBytes}
%%===============================================================================
-decode_named_integer(Tlv, NamedNumberList, TagIn) ->
- V = match_tags(Tlv, TagIn),
- Int = decode_integer(V),
- number2name(Int, NamedNumberList).
-
-decode_named_integer(Tlv, Range, NamedNumberList, TagIn) ->
- V = match_tags(Tlv, TagIn),
- Int = range_check_integer(decode_integer(V), Range),
- number2name(Int, NamedNumberList).
-
decode_integer(Tlv, TagIn) ->
V = match_tags(Tlv, TagIn),
decode_integer(V).
-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, {Lb,Ub}) when Lb =< Int, Int =< Ub ->
- Int;
-range_check_integer(Int, Range) ->
- exit({error,{asn1,{integer_range,Range,Int}}}).
-
-number2name(Int, []) ->
- Int;
number2name(Int, NamedNumberList) ->
case lists:keyfind(Int, 2, NamedNumberList) of
{NamedVal,_} ->
@@ -1098,33 +1074,23 @@ unused_bitlist([Bit | Rest], Trail, Ack) ->
%% decode bitstring value
%%============================================================================
-decode_compact_bit_string(Buffer, Range, Tags) ->
+decode_compact_bit_string(Buffer, Tags) ->
case match_and_collect(Buffer, Tags) of
- <<0>> ->
- check_restricted_string({0,<<>>}, 0, Range);
- <<Unused,Bits/binary>> ->
- Val = {Unused,Bits},
- Len = bit_size(Bits) - Unused,
- check_restricted_string(Val, Len, Range)
+ <<0>> -> {0,<<>>};
+ <<Unused,Bits/binary>> -> {Unused,Bits}
end.
-decode_legacy_bit_string(Buffer, Range, Tags) ->
- Val = case match_and_collect(Buffer, Tags) of
- <<0>> ->
- [];
- <<Unused,Bits/binary>> ->
- decode_bitstring2(byte_size(Bits), Unused, Bits)
- end,
- check_restricted_string(Val, length(Val), Range).
+compact_bit_string_size({Unused,Bits}) ->
+ bit_size(Bits) - Unused.
-decode_native_bit_string(Buffer, Range, Tags) ->
+decode_native_bit_string(Buffer, Tags) ->
case match_and_collect(Buffer, Tags) of
<<0>> ->
- check_restricted_string(<<>>, 0, Range);
+ <<>>;
<<Unused,Bits/binary>> ->
Size = bit_size(Bits) - Unused,
<<Val:Size/bitstring,_:Unused/bitstring>> = Bits,
- check_restricted_string(Val, Size, Range)
+ Val
end.
decode_named_bit_string(Buffer, NamedNumberList, Tags) ->
@@ -1147,6 +1113,9 @@ decode_bitstring2(Len, Unused,
[B7,B6,B5,B4,B3,B2,B1,B0|
decode_bitstring2(Len - 1, Unused, Buffer)].
+native_to_legacy_bit_string(Bits) ->
+ [B || <<B:1>> <= Bits].
+
%%----------------------------------------
%% Decode the bitlist to names
%%----------------------------------------
@@ -1310,31 +1279,12 @@ decode_octet_string(Tlv, TagsIn) ->
Bin = match_and_collect(Tlv, TagsIn),
binary:copy(Bin).
-decode_octet_string(Tlv, Range, TagsIn) ->
- Bin0 = match_and_collect(Tlv, TagsIn),
- Bin = binary:copy(Bin0),
- check_restricted_string(Bin, byte_size(Bin), Range).
-
%%============================================================================
%% decode Numeric Printable Teletex Videotex Visible IA5 Graphic General strings
%%============================================================================
decode_restricted_string(Tlv, TagsIn) ->
- Bin = match_and_collect(Tlv, TagsIn),
- binary_to_list(Bin).
-
-decode_restricted_string(Tlv, Range, TagsIn) ->
- Bin = match_and_collect(Tlv, TagsIn),
- check_restricted_string(binary_to_list(Bin), byte_size(Bin), Range).
-
-check_restricted_string(Val, _Len, []) ->
- Val;
-check_restricted_string(Val, Len, {Lb,Ub}) when Lb =< Len, Len =< Ub ->
- Val;
-check_restricted_string(Val, Len, Len) ->
- Val;
-check_restricted_string(Val, _Len, Range) ->
- exit({error,{asn1,{length,Range,Val}}}).
+ match_and_collect(Tlv, TagsIn).
%%============================================================================
%% encode Universal string
@@ -1360,10 +1310,9 @@ mk_uni_list([H|T],List) ->
%% {String, Remain, RemovedBytes}
%%===========================================================================
-decode_universal_string(Buffer, Range, Tags) ->
+decode_universal_string(Buffer, Tags) ->
Bin = match_and_collect(Buffer, Tags),
- Val = mk_universal_string(binary_to_list(Bin)),
- check_restricted_string(Val, length(Val), Range).
+ mk_universal_string(binary_to_list(Bin)).
mk_universal_string(In) ->
mk_universal_string(In, []).
@@ -1423,10 +1372,9 @@ mk_BMP_list([H|T], List) ->
%% (Buffer, Range, StringType, HasTag, TotalLen) ->
%% {String, Remain, RemovedBytes}
%%============================================================================
-decode_BMP_string(Buffer, Range, Tags) ->
+decode_BMP_string(Buffer, Tags) ->
Bin = match_and_collect(Buffer, Tags),
- Val = mk_BMP_string(binary_to_list(Bin)),
- check_restricted_string(Val, length(Val), Range).
+ mk_BMP_string(binary_to_list(Bin)).
mk_BMP_string(In) ->
mk_BMP_string(In,[]).
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 14:18:17 +0000