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authorBjörn Gustavsson <[email protected]>2013-05-27 13:41:42 +0200
committerBjörn Gustavsson <[email protected]>2013-06-07 17:42:57 +0200
commit69f02872020636d3efbbecf4bd3de7196040f6a9 (patch)
treefc78261c25833a50c379dbc84f4d29d2cb89eed4 /lib/asn1
parentf7295b48627fb84bceef61044b6f2d0cbee10c2b (diff)
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PER, UPER: Fix record name mismatch between HRL file and decoding code
When a SEQUENCE was defined inline inside extension addition group like this: InlinedSeq ::= SEQUENCE { ..., [[ s SEQUENCE { a INTEGER, b BOOLEAN } ]] } the decoding code would return the contents of the SEQUENCE in a record named 'InlinedSeq_ExtAddGroup1_s', while the record definition in the generated HRL file would be 'InlinedSeq_s'. Since there is no reason to use the longer record name (no risk for ambiguity), correct the name in the decoding code.
Diffstat (limited to 'lib/asn1')
-rw-r--r--lib/asn1/src/asn1ct_constructed_per.erl26
-rw-r--r--lib/asn1/test/asn1_SUITE_data/Extension-Addition-Group.asn19
-rw-r--r--lib/asn1/test/asn1_SUITE_data/extensionAdditionGroup.erl3
3 files changed, 46 insertions, 2 deletions
diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl
index efb55cf015..d279e9697f 100644
--- a/lib/asn1/src/asn1ct_constructed_per.erl
+++ b/lib/asn1/src/asn1ct_constructed_per.erl
@@ -354,8 +354,7 @@ gen_dec_constructed_imm_2(Typename, CompList,
%% we don't return named lists any more Cnames = mkcnamelist(CompList),
demit({"Result = "}), %dbg
%% return value as record
- RecordName = lists:concat([get_record_name_prefix(),
- asn1ct_gen:list2rname(Typename)]),
+ RecordName = record_name(Typename),
case Typename of
['EXTERNAL'] ->
emit({" OldFormat={'",RecordName,
@@ -377,6 +376,29 @@ gen_dec_constructed_imm_2(Typename, CompList,
end,
emit({{curr,bytes},"}"}).
+%% record_name([TypeName]) -> RecordNameString
+%% Construct a record name for the constructed type, ignoring any
+%% fake sequences that are used to represent an extension addition
+%% group. Such fake sequences never appear as a top type, and their
+%% name always start with "ExtAddGroup".
+
+record_name(Typename0) ->
+ [TopType|Typename1] = lists:reverse(Typename0),
+ Typename = filter_ext_add_groups(Typename1, [TopType]),
+ lists:concat([get_record_name_prefix(),
+ asn1ct_gen:list2rname(Typename)]).
+
+filter_ext_add_groups([H|T], Acc) when is_atom(H) ->
+ case atom_to_list(H) of
+ "ExtAddGroup"++_ ->
+ filter_ext_add_groups(T, Acc);
+ _ ->
+ filter_ext_add_groups(T, [H|Acc])
+ end;
+filter_ext_add_groups([H|T], Acc) ->
+ filter_ext_add_groups(T, [H|Acc]);
+filter_ext_add_groups([], Acc) -> Acc.
+
textual_order([#'ComponentType'{textual_order=undefined}|_],TermList) ->
TermList;
textual_order(CompList,TermList) when is_list(CompList) ->
diff --git a/lib/asn1/test/asn1_SUITE_data/Extension-Addition-Group.asn b/lib/asn1/test/asn1_SUITE_data/Extension-Addition-Group.asn
index b07dcd8baa..0e905d8839 100644
--- a/lib/asn1/test/asn1_SUITE_data/Extension-Addition-Group.asn
+++ b/lib/asn1/test/asn1_SUITE_data/Extension-Addition-Group.asn
@@ -118,4 +118,23 @@ AC-BarringConfig ::= SEQUENCE {
ac-BarringForSpecialAC BIT STRING (SIZE(5))
}
+InlinedSeq ::= SEQUENCE {
+ ...,
+ [[
+ s SEQUENCE {
+ a INTEGER,
+ b BOOLEAN
+ }
+ ]]
+}
+
+-- 'ExtAddGroup1' is used internally to represent fake sequences for
+-- extension addition groups. Make sure that a real sequence with that
+-- name at the top-level doesn't cause a problem.
+
+ExtAddGroup1 ::= SEQUENCE {
+ x INTEGER,
+ y INTEGER
+}
+
END
diff --git a/lib/asn1/test/asn1_SUITE_data/extensionAdditionGroup.erl b/lib/asn1/test/asn1_SUITE_data/extensionAdditionGroup.erl
index 00e4c707dd..8e21e6ca84 100644
--- a/lib/asn1/test/asn1_SUITE_data/extensionAdditionGroup.erl
+++ b/lib/asn1/test/asn1_SUITE_data/extensionAdditionGroup.erl
@@ -34,6 +34,9 @@ run(Erule) ->
run3(),
run3(Erule),
+ roundtrip('InlinedSeq', #'InlinedSeq'{s=#'InlinedSeq_s'{a=42,b=true}}),
+ roundtrip('ExtAddGroup1', #'ExtAddGroup1'{x=42,y=1023}),
+
ok.
%% From X.691 (07/2002) A.4.