diff options
Diffstat (limited to 'lib/asn1/src')
| -rw-r--r-- | lib/asn1/src/asn1ct.erl | 2 | ||||
| -rw-r--r-- | lib/asn1/src/asn1ct_check.erl | 219 |
2 files changed, 91 insertions, 130 deletions
diff --git a/lib/asn1/src/asn1ct.erl b/lib/asn1/src/asn1ct.erl index 9ec43197bf..8470e5a1b4 100644 --- a/lib/asn1/src/asn1ct.erl +++ b/lib/asn1/src/asn1ct.erl @@ -566,6 +566,8 @@ get_pos_of_def(#pobjectdef{pos=Pos}) -> Pos; get_pos_of_def(#pobjectsetdef{pos=Pos}) -> Pos; +get_pos_of_def(#'Externaltypereference'{pos=Pos}) -> + Pos; get_pos_of_def(#'Externalvaluereference'{pos=Pos}) -> Pos; get_pos_of_def(_) -> diff --git a/lib/asn1/src/asn1ct_check.erl b/lib/asn1/src/asn1ct_check.erl index b9f2cb876a..e788aa5c6c 100644 --- a/lib/asn1/src/asn1ct_check.erl +++ b/lib/asn1/src/asn1ct_check.erl @@ -270,46 +270,30 @@ check_exports(S,Module = #module{}) -> end end. -check_imports(S,Module = #module{ }) -> - case Module#module.imports of - {imports,[]} -> - []; - {imports,ImportList} when is_list(ImportList) -> - check_imports2(S,ImportList,[]); - _ -> - [] - end. -check_imports2(_S,[],Acc) -> +check_imports(S, #module{imports={imports,Imports}}) -> + check_imports_1(S, Imports, []). + +check_imports_1(_S, [], Acc) -> Acc; -check_imports2(S,[#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs],Acc) -> - NameOfDef = - fun(#'Externaltypereference'{type=N}) -> N; - (#'Externalvaluereference'{value=N}) -> N - end, - Module = NameOfDef(ModuleRef), - Refs = [{M,R}||{{M,_},R} <- [{catch get_referenced_type(S,Ref),Ref}||Ref <- Imports]], - {Illegal,Other} = lists:splitwith(fun({error,_}) -> true;(_) -> false end, - Refs), - ChainedRefs = [R||{M,R} <- Other, M =/= Module], - IllegalRefs = [R||{error,R} <- Illegal] ++ - [R||{M,R} <- ChainedRefs, - ok =/= chained_import(S,Module,M,NameOfDef(R))], - ReportError = - fun(Ref) -> - NewS=S#state{type=Ref,tname=NameOfDef(Ref)}, - error({import,"imported undefined entity",NewS}) - end, - check_imports2(S,SFMs,[ReportError(Err)||Err <- IllegalRefs]++Acc). +check_imports_1(S, [#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs], Acc0) -> + Module = name_of_def(ModuleRef), + Refs0 = [{catch get_referenced_type(S, Ref),Ref} || Ref <- Imports], + Refs = [{M,R} || {{M,_},R} <- Refs0], + {Illegal,Other} = lists:splitwith(fun({error,_}) -> true; + (_) -> false + end, Refs), + ChainedRefs = [R || {M,R} <- Other, M =/= Module], + IllegalRefs = [R || {error,R} <- Illegal] ++ + [R || {M,R} <- ChainedRefs, + ok =/= chained_import(S, Module, M, name_of_def(R))], + Acc = [return_asn1_error(S, Ref, {undefined_import,name_of_def(Ref),Module}) || + Ref <- IllegalRefs] ++ Acc0, + check_imports_1(S, SFMs, Acc). chained_import(S,ImpMod,DefMod,Name) -> %% Name is a referenced structure that is not defined in ImpMod, %% but must be present in the Imports list of ImpMod. The chain of %% imports of Name must end in DefMod. - NameOfDef = - fun(#'Externaltypereference'{type=N}) -> N; - (#'Externalvaluereference'{value=N}) -> N; - (Other) -> Other - end, GetImports = fun(_M_) -> case asn1_db:dbget(_M_,'MODULE') of @@ -321,9 +305,9 @@ chained_import(S,ImpMod,DefMod,Name) -> FindNameInImports = fun([],N,_) -> {no_mod,N}; ([#'SymbolsFromModule'{symbols=Imports,module=ModuleRef}|SFMs],N,F) -> - case [NameOfDef(X)||X <- Imports, NameOfDef(X) =:= N] of + case [name_of_def(X) || X <- Imports, name_of_def(X) =:= N] of [] -> F(SFMs,N,F); - [N] -> {NameOfDef(ModuleRef),N} + [N] -> {name_of_def(ModuleRef),N} end end, case GetImports(ImpMod) of @@ -1567,13 +1551,13 @@ check_defaultfields(S, Fields, ClassFields) -> [] -> ok; [_|_]=Invalid -> - throw(asn1_error(S, T, {invalid_fields,Invalid,Obj})) + asn1_error(S, T, {invalid_fields,Invalid,Obj}) end, case ordsets:subtract(Mandatory, Present) of [] -> check_defaultfields_1(S, Fields, ClassFields, []); [_|_]=Missing -> - throw(asn1_error(S, T, {missing_mandatory_fields,Missing,Obj})) + asn1_error(S, T, {missing_mandatory_fields,Missing,Obj}) end. check_defaultfields_1(_S, [], _ClassFields, Acc) -> @@ -2614,7 +2598,7 @@ normalize_octetstring(S,Value,CType) -> normalize_octetstring(S,String,CType); _ -> Item = S#state.value, - throw(asn1_error(S, Item, illegal_octet_string_value)) + asn1_error(S, Item, illegal_octet_string_value) end. normalize_objectidentifier(S, Value) -> @@ -2645,7 +2629,7 @@ lookup_enum_value(S, Id, NNL) when is_atom(Id) -> {_,_}=Ret -> Ret; false -> - throw(asn1_error(S, S#state.value, {undefined,Id})) + asn1_error(S, S#state.value, {undefined,Id}) end. normalize_choice(S,{'CHOICE',{C,V}},CType,NameList) when is_atom(C) -> @@ -3084,7 +3068,7 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) -> merge_tags(Tag,?TAG_PRIMITIVE(?N_INTEGER))}; {'INTEGER',NamedNumberList} -> - TempNewDef#newt{type={'INTEGER',check_integer(S,NamedNumberList,Constr)}, + TempNewDef#newt{type={'INTEGER',check_integer(S,NamedNumberList)}, tag= merge_tags(Tag,?TAG_PRIMITIVE(?N_INTEGER))}; 'REAL' -> @@ -3092,8 +3076,7 @@ check_type(S=#state{recordtopname=TopName},Type,Ts) when is_record(Ts,type) -> TempNewDef#newt{tag=merge_tags(Tag,?TAG_PRIMITIVE(?N_REAL))}; {'BIT STRING',NamedNumberList} -> - NewL = check_bitstring(S,NamedNumberList,Constr), -%% erlang:display({asn1ct_check,NamedNumberList,NewL}), + NewL = check_bitstring(S, NamedNumberList), TempNewDef#newt{type={'BIT STRING',NewL}, tag= merge_tags(Tag,?TAG_PRIMITIVE(?N_BIT_STRING))}; @@ -4910,73 +4893,46 @@ imported1(Name, end; imported1(_Name,[]) -> false. - -check_integer(_S,[],_C) -> +%% Check the named number list for an INTEGER or a BIT STRING. +check_named_number_list(_S, []) -> []; -check_integer(S,NamedNumberList,_C) -> - case [X || X <- NamedNumberList, tuple_size(X) =:= 2] of - NamedNumberList -> - %% An already checked integer with NamedNumberList - NamedNumberList; - _ -> - case check_unique(NamedNumberList,2) of - [] -> - check_int(S,NamedNumberList,[]); - L when is_list(L) -> - error({type,{duplicates,L},S}), - unchanged - end +check_named_number_list(_S, [{_,_}|_]=NNL) -> + %% The named number list has already been checked. + NNL; +check_named_number_list(S, NNL0) -> + %% Check that the names are unique. + T = S#state.type, + case check_unique(NNL0, 2) of + [] -> + NNL1 = [{Id,resolve_valueref(S, Val)} || {'NamedNumber',Id,Val} <- NNL0], + NNL = lists:keysort(2, NNL1), + case check_unique(NNL, 2) of + [] -> + NNL; + [Val|_] -> + asn1_error(S, T, {value_reused,Val}) + end; + [H|_] -> + asn1_error(S, T, {namelist_redefinition,H}) end. - -check_int(S,[{'NamedNumber',Id,Num}|T],Acc) when is_integer(Num) -> - check_int(S,T,[{Id,Num}|Acc]); -check_int(S,[{'NamedNumber',Id,{identifier,_,Name}}|T],Acc) -> - Val = dbget_ex(S,S#state.mname,Name), - check_int(S,[{'NamedNumber',Id,Val#valuedef.value}|T],Acc); -check_int(S,[{'NamedNumber',Id,{'Externalvaluereference',_,Mod,Name}}|T],Acc) -> - Val = dbget_ex(S,Mod,Name), - check_int(S,[{'NamedNumber',Id,Val#valuedef.value}|T],Acc); -check_int(_S,[],Acc) -> - lists:keysort(2,Acc). +resolve_valueref(S, #'Externalvaluereference'{module=Mod,value=Name}) -> + dbget_ex(S, Mod, Name); +resolve_valueref(_, Val) when is_integer(Val) -> + Val. -check_real(_S,_Constr) -> - ok. +check_integer(S, NNL) -> + check_named_number_list(S, NNL). -check_bitstring(_S,[],_Constr) -> - []; -check_bitstring(S,NamedNumberList,_Constr) -> - case check_unique(NamedNumberList,2) of - [] -> - check_bitstr(S,NamedNumberList,[]); - L when is_list(L) -> - error({type,{duplicates,L},S}), - unchanged - end. +check_bitstring(S, NNL0) -> + NNL = check_named_number_list(S, NNL0), + _ = [asn1_error(S, S#state.type, {invalid_bit_number,Bit}) || + {_,Bit} <- NNL, Bit < 0], + NNL. -check_bitstr(S,[{'NamedNumber',Id,Num}|T],Acc)when is_integer(Num) -> - check_bitstr(S,T,[{Id,Num}|Acc]); -check_bitstr(S,[{'NamedNumber',Id,Name}|T],Acc) when is_atom(Name) -> -%%check_bitstr(S,[{'NamedNumber',Id,{identifier,_,Name}}|T],Acc) -> -%% io:format("asn1ct_check:check_bitstr/3 hej hop ~w~n",[Name]), - Val = dbget_ex(S,S#state.mname,Name), -%% io:format("asn1ct_check:check_bitstr/3: ~w~n",[Val]), - check_bitstr(S,[{'NamedNumber',Id,Val#valuedef.value}|T],Acc); -check_bitstr(S,[],Acc) -> - case check_unique(Acc,2) of - [] -> - lists:keysort(2,Acc); - L when is_list(L) -> - error({type,{duplicate_values,L},S}), - unchanged - end; -%% When a BIT STRING already is checked, for instance a COMPONENTS OF S -%% where S is a sequence that has a component that is a checked BS, the -%% NamedNumber list is a list of {atom(),integer()} elements. -check_bitstr(S,[El={Id,Num}|Rest],Acc) when is_atom(Id),is_integer(Num) -> - check_bitstr(S,Rest,[El|Acc]). - +check_real(_S,_Constr) -> + ok. %% Check INSTANCE OF %% check that DefinedObjectClass is of TYPE-IDENTIFIER class @@ -4987,20 +4943,16 @@ check_instance_of(S,DefinedObjectClass,Constraint) -> check_type_identifier(S,DefinedObjectClass), iof_associated_type(S,Constraint). - -check_type_identifier(_S,'TYPE-IDENTIFIER') -> - ok; -check_type_identifier(S,Eref=#'Externaltypereference'{}) -> - case get_referenced_type(S,Eref) of - {_,#classdef{name='TYPE-IDENTIFIER'}} -> ok; - {_,#classdef{typespec=NextEref}} - when is_record(NextEref,'Externaltypereference') -> - check_type_identifier(S,NextEref); +check_type_identifier(S, Eref=#'Externaltypereference'{type=Class}) -> + case get_referenced_type(S, Eref) of + {_,#classdef{name='TYPE-IDENTIFIER'}} -> + ok; + {_,#classdef{typespec=#'Externaltypereference'{}=NextEref}} -> + check_type_identifier(S, NextEref); {_,TD=#typedef{typespec=#type{def=#'Externaltypereference'{}}}} -> - check_type_identifier(S,(TD#typedef.typespec)#type.def); - Err -> - error({type,{"object set in type INSTANCE OF " - "not of class TYPE-IDENTIFIER",Eref,Err},S}) + check_type_identifier(S, (TD#typedef.typespec)#type.def); + _ -> + asn1_error(S, S#state.type, {illegal_instance_of,Class}) end. iof_associated_type(S,[]) -> @@ -5130,9 +5082,6 @@ check_enumerated(S,NamedNumberList,_Constr) -> %% the latter is returned if the ENUMERATION contains EXTENSIONMARK check_enum(S,[{'NamedNumber',Id,Num}|T],Acc1,Acc2,Root) when is_integer(Num) -> check_enum(S,T,[{Id,Num}|Acc1],Acc2,Root); -check_enum(S,[{'NamedNumber',Id,{identifier,_,Name}}|T],Acc1,Acc2,Root) -> - Val = dbget_ex(S,S#state.mname,Name), - check_enum(S,[{'NamedNumber',Id,Val#valuedef.value}|T],Acc1,Acc2,Root); check_enum(S,['EXTENSIONMARK'|T],Acc1,Acc2,_Root) -> NewAcc2 = lists:keysort(2,Acc1), NewList = enum_number(lists:reverse(Acc2),NewAcc2,0,[],[]), @@ -6748,7 +6697,7 @@ storeindb(#state{mname=Module}=S, [H|T], Errors) -> storeindb(S, T, Errors); Prev -> PrevLine = asn1ct:get_pos_of_def(Prev), - {error,Error} = asn1_error(S, H, {already_defined,Name,PrevLine}), + Error = return_asn1_error(S, H, {already_defined,Name,PrevLine}), storeindb(S, T, [Error|Errors]) end; storeindb(_, [], []) -> @@ -6795,22 +6744,37 @@ findtypes_and_values([],Tacc,Vacc,Pacc,Cacc,Oacc,OSacc) -> {lists:reverse(Tacc),lists:reverse(Vacc),lists:reverse(Pacc), lists:reverse(Cacc),lists:reverse(Oacc),lists:reverse(OSacc)}. -asn1_error(#state{mname=Where}, Item, Error) -> +return_asn1_error(#state{mname=Where}, Item, Error) -> Pos = asn1ct:get_pos_of_def(Item), - {error,{structured_error,{Where,Pos},?MODULE,Error}}. + {structured_error,{Where,Pos},?MODULE,Error}. + +asn1_error(S, Item, Error) -> + throw({error,return_asn1_error(S, Item, Error)}). format_error({already_defined,Name,PrevLine}) -> io_lib:format("the name ~p has already been defined at line ~p", [Name,PrevLine]); +format_error({illegal_instance_of,Class}) -> + io_lib:format("using INSTANCE OF on class '~s' is illegal, " + "because INSTANCE OF may only be used on the class TYPE-IDENTFIER", + [Class]); format_error(illegal_octet_string_value) -> "expecting a bstring or an hstring as value for an OCTET STRING"; format_error({invalid_fields,Fields,Obj}) -> io_lib:format("invalid ~s in ~p", [format_fields(Fields),Obj]); +format_error({invalid_bit_number,Bit}) -> + io_lib:format("the bit number '~p' is invalid", [Bit]); format_error({missing_mandatory_fields,Fields,Obj}) -> io_lib:format("missing mandatory ~s in ~p", [format_fields(Fields),Obj]); +format_error({namelist_redefinition,Name}) -> + io_lib:format("the name '~s' can not be redefined", [Name]); format_error({undefined,Name}) -> io_lib:format("'~s' is referenced, but is not defined", [Name]); +format_error({undefined_import,Ref,Module}) -> + io_lib:format("'~s' is not exported from ~s", [Ref,Module]); +format_error({value_reused,Val}) -> + io_lib:format("the value '~p' is used more than once", [Val]); format_error(Other) -> io_lib:format("~p", [Other]). @@ -6826,14 +6790,6 @@ error({export,Msg,#state{mname=Mname,type=Ref,tname=Typename}}) -> Pos = Ref#'Externaltypereference'.pos, io:format("asn1error:~p:~p:~p~n~p~n",[Pos,Mname,Typename,Msg]), {error,{export,Pos,Mname,Typename,Msg}}; -error({import,Msg,#state{mname=Mname,type=Ref,tname=Typename}}) -> - PosOfDef = - fun(#'Externaltypereference'{pos=P}) -> P; - (#'Externalvaluereference'{pos=P}) -> P - end, - Pos = PosOfDef(Ref), - io:format("asn1error:~p:~p:~p~n~p~n",[Pos,Mname,Typename,Msg]), - {error,{import,Pos,Mname,Typename,Msg}}; % error({type,{Msg1,Msg2},#state{mname=Mname,type=Type,tname=Typename}}) % when is_record(Type,typedef) -> % io:format("asn1error:~p:~p:~p ~p~n", @@ -7134,3 +7090,6 @@ check_fold(S, [H|T], Check) -> [Error|check_fold(S, T, Check)] end; check_fold(_, [], Check) when is_function(Check, 3) -> []. + +name_of_def(#'Externaltypereference'{type=N}) -> N; +name_of_def(#'Externalvaluereference'{value=N}) -> N. |