diff options
Diffstat (limited to 'lib/asn1/src')
| -rw-r--r-- | lib/asn1/src/Makefile | 36 | ||||
| -rw-r--r-- | lib/asn1/src/asn1ct_constructed_per.erl | 919 | ||||
| -rw-r--r-- | lib/asn1/src/asn1ct_gen.erl | 2 | ||||
| -rw-r--r-- | lib/asn1/src/asn1ct_gen_per.erl | 193 | ||||
| -rw-r--r-- | lib/asn1/src/asn1ct_gen_per_rt2ct.erl | 211 | ||||
| -rw-r--r-- | lib/asn1/src/asn1ct_imm.erl | 626 | ||||
| -rw-r--r-- | lib/asn1/src/asn1ct_value.erl | 5 | ||||
| -rw-r--r-- | lib/asn1/src/asn1rt_per_bin_rt2ct.erl | 307 | ||||
| -rw-r--r-- | lib/asn1/src/asn1rt_uper_bin.erl | 270 |
9 files changed, 1409 insertions, 1160 deletions
diff --git a/lib/asn1/src/Makefile b/lib/asn1/src/Makefile index 3d66583745..8d9422144e 100644 --- a/lib/asn1/src/Makefile +++ b/lib/asn1/src/Makefile @@ -54,6 +54,7 @@ CT_MODULES= \ asn1ct_constructed_per \ asn1ct_constructed_ber_bin_v2 \ asn1ct_gen_ber_bin_v2 \ + asn1ct_imm \ asn1ct_value \ asn1ct_tok \ asn1ct_parser2 \ @@ -163,11 +164,32 @@ release_spec: opt release_docs_spec: +# +# Dependencies +# - - - - - - - +$(EBIN)/asn1_app.beam: asn1_app.erl +$(EBIN)/asn1_db.beam: asn1_db.erl +$(EBIN)/asn1ct.beam: asn1ct.erl asn1_records.hrl +$(EBIN)/asn1ct_check.beam: asn1ct_check.erl asn1_records.hrl +$(EBIN)/asn1ct_constructed_ber_bin_v2.beam: asn1ct_constructed_ber_bin_v2.erl \ + asn1_records.hrl +$(EBIN)/asn1ct_constructed_per.beam: asn1ct_constructed_per.erl asn1_records.hrl +$(EBIN)/asn1ct_gen.beam: asn1ct_gen.erl asn1_records.hrl +$(EBIN)/asn1ct_gen_ber_bin_v2.beam: asn1ct_gen_ber_bin_v2.erl asn1_records.hrl +$(EBIN)/asn1ct_gen_per.beam: asn1ct_gen_per.erl asn1_records.hrl +$(EBIN)/asn1ct_gen_per_rt2ct.beam: asn1ct_gen_per_rt2ct.erl asn1_records.hrl +$(EBIN)/asn1ct_imm.beam: asn1ct_imm.erl +$(EBIN)/asn1ct_name.beam: asn1ct_name.erl +$(EBIN)/asn1ct_parser2.beam: asn1ct_parser2.erl asn1_records.hrl +$(EBIN)/asn1ct_pretty_format.beam: asn1ct_pretty_format.erl +$(EBIN)/asn1ct_table.beam: asn1ct_table.erl +$(EBIN)/asn1ct_tok.beam: asn1ct_tok.erl +$(EBIN)/asn1ct_value.beam: asn1ct_value.erl asn1_records.hrl +$(EBIN)/asn1rt.beam: asn1rt.erl +$(EBIN)/asn1rt_ber_bin.beam: asn1rt_ber_bin.erl asn1_records.hrl +$(EBIN)/asn1rt_ber_bin_v2.beam: asn1rt_ber_bin_v2.erl +$(EBIN)/asn1rt_check.beam: asn1rt_check.erl +$(EBIN)/asn1rt_nif.beam: asn1rt_nif.erl +$(EBIN)/asn1rt_per_bin_rt2ct.beam: asn1rt_per_bin_rt2ct.erl asn1_records.hrl +$(EBIN)/asn1rt_uper_bin.beam: asn1rt_uper_bin.erl asn1_records.hrl diff --git a/lib/asn1/src/asn1ct_constructed_per.erl b/lib/asn1/src/asn1ct_constructed_per.erl index e4e0e064e8..b29a7b3048 100644 --- a/lib/asn1/src/asn1ct_constructed_per.erl +++ b/lib/asn1/src/asn1ct_constructed_per.erl @@ -76,9 +76,7 @@ gen_encode_constructed(Erule,Typename,D) when is_record(D,type) -> case {Optionals = optionals(to_textual_order(CompList)),CompList, is_optimized(Erule)} of {[],EmptyCL,_} when EmptyCL == {[],[],[]};EmptyCL == {[],[]};EmptyCL == [] -> - emit(["%%Variable setting just to eliminate ", - "compiler warning for unused vars!",nl, - "_Val = ",{curr,val},",",nl]); + ok; {[],_,_} -> emit([{next,val}," = ",{curr,val},",",nl]); {_,_,true} -> @@ -219,9 +217,74 @@ gen_decode_set(Erules,Typename,D) -> gen_decode_sequence(Erules,Typename,D) -> gen_decode_constructed(Erules,Typename,D). -gen_decode_constructed(Erules,Typename,D) when is_record(D,type) -> +gen_decode_constructed(Erule, Typename, #type{}=D) -> + Imm0 = gen_dec_constructed_imm(Erule, Typename, #type{}=D), + Imm = opt_imm(Imm0), asn1ct_name:start(), asn1ct_name:clear(), + emit_gen_dec_imm(Imm), + emit([".",nl,nl]). + +opt_imm(Imm0) -> + {Imm,_} = opt_imm_1(Imm0, unknown, []), + Imm. + +opt_imm_1([{imm,Imm0,F}|T], Al0, Acc) -> + {Imm,Al} = asn1ct_imm:optimize_alignment(Imm0, Al0), + opt_imm_1(T, Al, [{imm,Imm,F}|Acc]); +opt_imm_1([ignore|T], Al, Acc) -> + opt_imm_1(T, Al, Acc); +opt_imm_1([{ignore,_}=H|T], Al, Acc) -> + opt_imm_1(T, Al, [H|Acc]); +opt_imm_1([{safe,ignore}|T], Al, Acc) -> + opt_imm_1(T, Al, Acc); +opt_imm_1([{safe,_}=H|T], Al, Acc) -> + opt_imm_1(T, Al, [H|Acc]); +opt_imm_1([{group,G0}|T], Al0, Acc) -> + {G,Al} = opt_imm_1(G0, Al0, []), + opt_imm_1(T, Al, [{group,G}|Acc]); +opt_imm_1([Emit|T], _, Acc) when is_function(Emit, 1) -> + opt_imm_1(T, unknown, [Emit|Acc]); +opt_imm_1([], Al, Acc) -> + {lists:reverse(Acc),Al}. + +emit_gen_dec_imm(L) -> + emit_gen_dec_imm(L, "", []). + +emit_gen_dec_imm([{ignore,Fun}|T], Sep, St0) -> + St = Fun(St0), + emit_gen_dec_imm(T, Sep, St); +emit_gen_dec_imm([{group,L}|T], Sep, St0) -> + emit(Sep), + St = emit_gen_dec_imm_group(L, St0), + emit_gen_dec_imm(T, [com,nl], St); +emit_gen_dec_imm([{imm,Imm,Emit}|T], Sep, St0) -> + emit(Sep), + St = Emit(Imm, St0), + emit_gen_dec_imm(T, [com,nl], St); +emit_gen_dec_imm([{safe,Item}|T], Sep, St) -> + emit_gen_dec_imm([Item|T], Sep, St); +emit_gen_dec_imm([Emit|T], Sep, St0) -> + emit(Sep), + St = Emit(St0), + emit_gen_dec_imm(T, [com,nl], St); +emit_gen_dec_imm([], _, _) -> ok. + +emit_gen_dec_imm_group([H|T], St0) -> + St = emit_gen_dec_group_item(H, St0), + emit_gen_dec_imm_group(T, St); +emit_gen_dec_imm_group([], St) -> St. + +emit_gen_dec_group_item({ignore,Fun}, St) -> + Fun(St); +emit_gen_dec_group_item({imm,Imm,Fun}, St) -> + Fun(Imm, St); +emit_gen_dec_group_item({safe,Item}, St) -> + emit_gen_dec_group_item(Item, St); +emit_gen_dec_group_item(Emit, St) -> + Emit(St). + +gen_dec_constructed_imm(Erule, Typename, #type{}=D) -> {CompList,TableConsInfo} = case D#type.def of #'SEQUENCE'{tablecinf=TCI,components=CL} -> @@ -231,27 +294,19 @@ gen_decode_constructed(Erules,Typename,D) when is_record(D,type) -> {CL,TCI} % the textual order is already taken care of end, Ext = extensible_dec(CompList), - MaybeComma1 = case Ext of - {ext,_Pos,_NumExt} -> - gen_dec_extension_value("Bytes"), - {",",nl}; - _ -> - "" - end, + EmitExt = case Ext of + {ext,_Pos,_NumExt} -> + gen_dec_extension_value(); + _ -> ignore + end, Optionals = optionals(CompList), - MaybeComma2 = case Optionals of - [] -> MaybeComma1; - _ -> - Bcurr = asn1ct_name:curr(bytes), - Bnext = asn1ct_name:next(bytes), - emit(MaybeComma1), - GetoptCall = "} = ?RT_PER:getoptionals2(", - emit({"{Opt,",{var,Bnext},GetoptCall, - {var,Bcurr},",",{asis,length(Optionals)},")"}), - asn1ct_name:new(bytes), - ", " - end, - {DecObjInf,UniqueFName,ValueIndex} = + EmitOpt = case Optionals of + [] -> + ignore; + [_|_] -> + gen_dec_optionals(Optionals) + end, + ObjSetInfo = case TableConsInfo of %% {ObjectSet,AttrN,N,UniqueFieldName} ->%% N is index of attribute that determines constraint #simpletableattributes{objectsetname=ObjectSet, @@ -283,13 +338,19 @@ gen_decode_constructed(Erules,Typename,D) when is_record(D,type) -> {false,false,false} end end, -%% NewCompList = wrap_compList(CompList), - {AccTerm,AccBytes} = - gen_dec_components_call(Erules,Typename,CompList,MaybeComma2,DecObjInf,Ext,length(Optionals)), - case asn1ct_name:all(term) of - [] -> emit(MaybeComma2); % no components at all - _ -> emit({com,nl}) - end, + {DecObjInf,_,_} = ObjSetInfo, + EmitComp = gen_dec_components_call(Erule, Typename, CompList, + DecObjInf, Ext, length(Optionals)), + EmitRest = fun({AccTerm,AccBytes}) -> + gen_dec_constructed_imm_2(Typename, CompList, + ObjSetInfo, + AccTerm, AccBytes) + end, + [EmitExt,EmitOpt|EmitComp++[{safe,EmitRest}]]. + +gen_dec_constructed_imm_2(Typename, CompList, + ObjSetInfo, AccTerm, AccBytes) -> + {_,UniqueFName,ValueIndex} = ObjSetInfo, case {AccTerm,AccBytes} of {[],[]} -> ok; @@ -331,8 +392,7 @@ gen_decode_constructed(Erules,Typename,D) when is_record(D,type) -> mkvlist(textual_order(to_encoding_order(CompList),asn1ct_name:all(term))), emit("},") end, - emit({{curr,bytes},"}"}), - emit({".",nl,nl}). + emit({{curr,bytes},"}"}). textual_order([#'ComponentType'{textual_order=undefined}|_],TermList) -> TermList; @@ -514,10 +574,10 @@ gen_decode_sof(Erules,Typename,SeqOrSetOf,D) when is_record(D,type) -> _ -> "" end, - gen_decode_length(SizeConstraint, - is_optimized(Erules)), - emit({"'dec_",asn1ct_gen:list2name(Typename), - "_components'(Num, Bytes1, telltype",ObjFun,", []).",nl}), + {Num,Buf} = gen_decode_length(SizeConstraint, Erules), + emit([",",nl, + "'dec_",asn1ct_gen:list2name(Typename), + "_components'(",Num,", ",Buf,ObjFun,", []).",nl,nl]), NewComponentType = case ComponentType#type.def of {'ENUMERATED',_,Component}-> @@ -526,40 +586,13 @@ gen_decode_sof(Erules,Typename,SeqOrSetOf,D) when is_record(D,type) -> end, gen_decode_sof_components(Erules,Typename,SeqOrSetOf,NewComponentType). -%% Logic copied from asn1_per_bin_rt2ct:decode_constrained_number -gen_decode_length({Lb,Ub},true) when Ub =< 65535, Lb >= 0 -> - Range = Ub - Lb + 1, - Call = if - Range == 1 -> - "{0,Bytes}"; - Range == 2 -> - "?RT_PER:getbits(Bytes,1)"; - Range =< 4 -> - "?RT_PER:getbits(Bytes,2)"; - Range =< 8 -> - "?RT_PER:getbits(Bytes,3)"; - Range =< 16 -> - "?RT_PER:getbits(Bytes,4)"; - Range =< 32 -> - "?RT_PER:getbits(Bytes,5)"; - Range =< 64 -> - "?RT_PER:getbits(Bytes,6)"; - Range =< 128 -> - "?RT_PER:getbits(Bytes,7)"; - Range =< 255 -> - "?RT_PER:getbits(Bytes,8)"; - Range =< 256 -> - "?RT_PER:getoctets(Bytes,1)"; - Range =< 65536 -> - "?RT_PER:getoctets(Bytes,2)"; - true -> - ["exit({not_supported,{integer_range,",Range,"}}"] - end, - emit({nl,"{Val,Remain} = ",Call,",",nl}), - emit({nl,"{Num,Bytes1} = {Val+",Lb,",Remain},",nl}); -gen_decode_length(SizeConstraint,_) -> - emit({nl,"{Num,Bytes1} = ?RT_PER:decode_length(Bytes,", - {asis,SizeConstraint},"),",nl}). +is_aligned(per) -> true; +is_aligned(uper) -> false. + +gen_decode_length(Constraint, Erule) -> + emit(["%% Length with constraint ",{asis,Constraint},nl]), + Imm = asn1ct_imm:per_dec_length(Constraint, true, is_aligned(Erule)), + asn1ct_imm:dec_slim_cg(Imm, "Bytes"). gen_encode_sof_components(Erule,Typename,SeqOrSetOf,Cont) -> {ObjFun,ObjFun_Var} = @@ -611,10 +644,10 @@ gen_decode_sof_components(Erule,Typename,SeqOrSetOf,Cont) -> {"",""} end, emit({"'dec_",asn1ct_gen:list2name(Typename), - "_components'(0, Bytes, _",ObjFun_Var,", Acc) ->",nl, + "_components'(0, Bytes",ObjFun_Var,", Acc) ->",nl, indent(3),"{lists:reverse(Acc), Bytes};",nl}), emit({"'dec_",asn1ct_gen:list2name(Typename), - "_components'(Num, Bytes, _",ObjFun,", Acc) ->",nl}), + "_components'(Num, Bytes",ObjFun,", Acc) ->",nl}), emit({indent(3),"{Term,Remain} = "}), Constructed_Suffix = asn1ct_gen:constructed_suffix(SeqOrSetOf, Cont#type.def), @@ -643,7 +676,7 @@ gen_decode_sof_components(Erule,Typename,SeqOrSetOf,Cont) -> emit({"'dec_",Conttype,"'(Bytes,telltype),",nl}) end, emit({indent(3),"'dec_",asn1ct_gen:list2name(Typename), - "_components'(Num-1, Remain, telltype",ObjFun,", [Term|Acc]).",nl}). + "_components'(Num-1, Remain",ObjFun,", [Term|Acc]).",nl}). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -714,10 +747,25 @@ extgrouppos([_|T],ActualPos,VirtualPos,Len,Acc) -> extgrouppos(T,ActualPos,VirtualPos,Len+1,Acc). - -gen_dec_extension_value(_) -> - emit({"{Ext,",{next,bytes},"} = ?RT_PER:getext(",{curr,bytes},")"}), - asn1ct_name:new(bytes). +gen_dec_extension_value() -> + Imm0 = {get_bits,1,[1]}, + E = fun(Imm, _) -> + emit(["{Ext,",{next,bytes},"} = "]), + BytesVar = asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), + asn1ct_imm:dec_code_gen(Imm, BytesVar), + asn1ct_name:new(bytes) + end, + {imm,Imm0,E}. + +gen_dec_optionals(Optionals) -> + Imm0 = {get_bits,length(Optionals),[1]}, + E = fun(Imm, _) -> + BytesVar = asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), + emit(["{Opt,",{next,bytes},"} = "]), + asn1ct_imm:dec_code_gen(Imm, BytesVar), + asn1ct_name:new(bytes) + end, + {imm,Imm0,E}. gen_fixoptionals([{Pos,Def}|R]) -> asn1ct_name:new(fixopt), @@ -1031,53 +1079,79 @@ gen_enc_line(Erule,TopType,Cname,Type,Element, _Pos,DynamicEnc,Ext) -> emit("))"); _ -> true end. -gen_dec_components_call(Erule,TopType,{Root,ExtList},MaybeComma, + +gen_dec_components_call(Erule, TopType, {Root,ExtList}, + DecInfObj, Ext, NumberOfOptionals) -> + gen_dec_components_call(Erule,TopType,{Root,ExtList,[]}, + DecInfObj,Ext,NumberOfOptionals); +gen_dec_components_call(Erule,TopType,CL={Root1,ExtList,Root2}, DecInfObj,Ext,NumberOfOptionals) -> - gen_dec_components_call(Erule,TopType,{Root,ExtList,[]},MaybeComma,DecInfObj,Ext,NumberOfOptionals); -gen_dec_components_call(Erule,TopType,CL={Root1,ExtList,Root2},MaybeComma,DecInfObj,Ext,NumberOfOptionals) -> %% The type has extensionmarker - OptTable = create_optionality_table(Root1++Root2), - {Rpos,AccTerm,AccBytes} = - gen_dec_components_call1(Erule,TopType, Root1++Root2, 1, OptTable, - MaybeComma,DecInfObj,noext,[],[], - NumberOfOptionals), - emit([",",nl,"{Extensions,",{next,bytes},"} = "]), - emit(["?RT_PER:getextension(Ext,",{curr,bytes},"),",nl]), - asn1ct_name:new(bytes), + Init = {ignore,fun(_) -> {[],[]} end}, + {EmitRoot,Tpos} = + gen_dec_comp_calls(Root1++Root2, Erule, TopType, OptTable, + DecInfObj, noext, NumberOfOptionals, + 1, []), + EmitGetExt = gen_dec_get_extension(Erule), {extgrouppos,ExtGroupPosLen} = extgroup_pos_and_length(CL), - NewExtList = wrap_extensionAdditionGroups(ExtList,ExtGroupPosLen), - {_Epos,AccTermE,AccBytesE} = - gen_dec_components_call1(Erule,TopType,NewExtList,Rpos, OptTable, - "",DecInfObj,Ext,[],[],NumberOfOptionals), - case ExtList of - [] -> true; - _ -> emit([",",nl]) - end, - emit([{next,bytes},"= ?RT_PER:skipextensions(",{curr,bytes},",", - length(ExtList)+1,",Extensions)",nl]), - asn1ct_name:new(bytes), - {AccTerm++AccTermE,AccBytes++AccBytesE}; - -gen_dec_components_call(Erule,TopType,CompList,MaybeComma,DecInfObj, - Ext,NumberOfOptionals) -> + NewExtList = wrap_extensionAdditionGroups(ExtList, ExtGroupPosLen), + {EmitExts,_} = gen_dec_comp_calls(NewExtList, Erule, TopType, OptTable, + DecInfObj, Ext, NumberOfOptionals, + Tpos, []), + Finish = + fun(St) -> + emit([{next,bytes},"= ?RT_PER:skipextensions(",{curr,bytes},",", + length(ExtList)+1,",Extensions)"]), + asn1ct_name:new(bytes), + St + end, + [Init] ++ EmitRoot ++ [EmitGetExt|EmitExts] ++ [Finish]; +gen_dec_components_call(Erule, TopType, CompList, DecInfObj, + Ext, NumberOfOptionals) -> %% The type has no extensionmarker OptTable = create_optionality_table(CompList), - {_,AccTerm,AccBytes} = - gen_dec_components_call1(Erule,TopType, CompList, 1, OptTable, - MaybeComma,DecInfObj,Ext,[],[], - NumberOfOptionals), - {AccTerm,AccBytes}. - - -gen_dec_components_call1(Erule,TopType, - [C=#'ComponentType'{name=Cname,typespec=Type,prop=Prop,textual_order=TextPos}|Rest], - Tpos,OptTable,MaybeComma,DecInfObj,Ext,AccTerm,AccBytes,NumberOfOptionals) -> + Init = {ignore,fun(_) -> {[],[]} end}, + {Cs,_} = gen_dec_comp_calls(CompList, Erule, TopType, OptTable, + DecInfObj, Ext, NumberOfOptionals, + 1, []), + [Init|Cs]. + +gen_dec_get_extension(Erule) -> + Imm0 = asn1ct_imm:per_dec_extension_map(is_aligned(Erule)), + E = fun(Imm, St) -> + emit([nl,"%% Extensions", + nl, + "{Extensions,",{next,bytes},"} = ", + "case Ext of",nl, + "0 -> {<<>>,",{curr,bytes},"};",nl, + "1 ->",nl]), + BytesVar = asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), + {Dst,DstBuf} = asn1ct_imm:dec_slim_cg(Imm, BytesVar), + emit([com,nl, + "{",Dst,",",DstBuf,"}",nl, + "end"]), + asn1ct_name:new(bytes), + St + end, + {imm,Imm0,E}. + +gen_dec_comp_calls([C|Cs], Erule, TopType, OptTable, DecInfObj, + Ext, NumberOfOptionals, Tpos, Acc) -> + L = gen_dec_comp_call(C, Erule, TopType, Tpos, OptTable, DecInfObj, + Ext, NumberOfOptionals), + gen_dec_comp_calls(Cs, Erule, TopType, OptTable, DecInfObj, + Ext, NumberOfOptionals, Tpos+1, [L|Acc]); +gen_dec_comp_calls([], _, _, _, _, _, _, Tpos, Acc) -> + {lists:append(lists:reverse(Acc)),Tpos}. + +gen_dec_comp_call(Comp, Erule, TopType, Tpos, OptTable, DecInfObj, + Ext, NumberOfOptionals) -> + #'ComponentType'{typespec=Type,prop=Prop,textual_order=TextPos} = Comp, Pos = case Ext of noext -> Tpos; {ext,Epos,_Enum} -> Tpos - Epos + 1 end, - emit(MaybeComma), InnerType = case Type#type.def of #'ObjectClassFieldType'{type=InType} -> @@ -1086,109 +1160,128 @@ gen_dec_components_call1(Erule,TopType, asn1ct_gen:get_inner(Def) end, - case InnerType of - #'Externaltypereference'{type=T} -> - emit({nl,"%% attribute number ",TextPos," with type ", - T,nl}); - IT when is_tuple(IT) -> - emit({nl,"%% attribute number ",TextPos," with type ", - element(2,IT),nl}); - _ -> - emit({nl,"%% attribute number ",TextPos," with type ", - InnerType,nl}) - end, - - IsMandatoryAndPredefinedTableC = - fun(noext,mandatory,{"got objfun through args","ObjFun"}) -> - true; - (_,_,{"got objfun through args","ObjFun"}) -> - false; - (_,_,_) -> - true - end, - case {InnerType,IsMandatoryAndPredefinedTableC(Ext,Prop,DecInfObj)} of -%% {typefield,_} when Ext == noext, Prop == mandatory -> - {{typefield,_},true} -> - %% DecInfObj /= {"got objfun through args","ObjFun"} | - %% (DecInfObj == {"got objfun through args","ObjFun"} & - %% Ext == noext & Prop == mandatory) - asn1ct_name:new(term), - asn1ct_name:new(tmpterm), - emit({"{",{curr,tmpterm},", ",{next,bytes},"} = "}); + DispType = case InnerType of + #'Externaltypereference'{type=T} -> T; + IT when is_tuple(IT) -> element(2,IT); + _ -> InnerType + end, + Comment = fun(St) -> + emit([nl,"%% attribute number ",TextPos, + " with type ",DispType,nl]), + St + end, + + Preamble = + case {InnerType,is_mandatory_predef_tab_c(Ext, Prop, DecInfObj)} of + {{typefield,_},true} -> + %% DecInfObj /= {"got objfun through args","ObjFun"} | + %% (DecInfObj == {"got objfun through args","ObjFun"} & + %% Ext == noext & Prop == mandatory) + fun(St) -> + asn1ct_name:new(term), + asn1ct_name:new(tmpterm), + emit(["{",{curr,tmpterm},", ",{next,bytes},"} = "]), + St + end; %%{objectfield,_,_} when Ext == noext, Prop == mandatory -> - {{objectfield,_,_},true} -> - asn1ct_name:new(term), - asn1ct_name:new(tmpterm), - emit({"{",{curr,tmpterm},", ",{next,bytes},"} = "}); + {{objectfield,_,_},true} -> + fun(St) -> + asn1ct_name:new(term), + asn1ct_name:new(tmpterm), + emit(["{",{curr,tmpterm},", ",{next,bytes},"} = "]), + St + end; _ -> case Type of #type{def=#'SEQUENCE'{ extaddgroup=Number1, components=ExtGroupCompList1}} when is_integer(Number1)-> - emit({"{{_,"}), - emit_extaddgroupTerms(term,ExtGroupCompList1), - emit({"}"}); - _ -> - asn1ct_name:new(term), - emit({"{",{curr,term}}) - end, - emit({",",{next,bytes},"} = "}) - end, - - case {Ext,Prop,is_optimized(Erule)} of - {noext,mandatory,_} -> ok; % generate nothing - {noext,_,_} -> %% OPTIONAL or DEFAULT - OptPos = get_optionality_pos(TextPos,OptTable), - Element = io_lib:format("Opt band (1 bsl ~w)",[NumberOfOptionals - OptPos]), - emit(["case ",Element," of",nl]), - emit([" _Opt",TextPos," when _Opt",TextPos," > 0 ->"]); - {_,_,false} -> %% extension element, not bitstring - emit(["case Extensions of",nl]), - emit([" _ when size(Extensions) >= ",Pos,",element(",Pos,",Extensions) == 1 ->",nl]); - _ -> - emit(["case Extensions of",nl]), - emit([" <<_:",Pos-1,",1:1,_/bitstring>> when bit_size(Extensions) >= ",Pos," ->",nl]) - end, - put(component_type,{true,C}), - {TermVar,BytesVar} = gen_dec_line(Erule,TopType,Cname,Type,Tpos,DecInfObj,Ext,Prop), - erase(component_type), - case {Ext,Prop} of - {noext,mandatory} -> true; % generate nothing - {noext,_} -> - emit([";",nl,"0 ->"]), - emit(["{"]), - gen_dec_component_no_val(Ext,Prop), - emit({",",{curr,bytes},"}",nl}), - emit([nl,"end"]); - _ -> - emit([";",nl,"_ ->",nl]), - emit(["{"]), - case Type of - #type{def=#'SEQUENCE'{ - extaddgroup=Number2, - components=ExtGroupCompList2}} when is_integer(Number2)-> - emit({"{extAddGroup,"}), - gen_dec_extaddGroup_no_val(Ext,ExtGroupCompList2), - emit({"}"}); + fun(St) -> + emit(["{{_,"]), + emit_extaddgroupTerms(term,ExtGroupCompList1), + emit(["}"]), + emit([",",{next,bytes},"} = "]), + St + end; _ -> - gen_dec_component_no_val(Ext,Prop) - end, - emit({",",{curr,bytes},"}",nl}), - emit([nl,"end"]) - end, - asn1ct_name:new(bytes), - case Rest of - [] -> - {Tpos+1,AccTerm++TermVar,AccBytes++BytesVar}; - _ -> - emit({com,nl}), - gen_dec_components_call1(Erule,TopType,Rest,Tpos+1,OptTable, - "",DecInfObj,Ext, AccTerm++TermVar, - AccBytes++BytesVar,NumberOfOptionals) - end; + fun(St) -> + asn1ct_name:new(term), + emit(["{",{curr,term}]), + emit([",",{next,bytes},"} = "]), + St + end + end + end, -gen_dec_components_call1(_,_TopType,[],Pos,_OptTable,_,_,_,AccTerm,AccBytes,_NumberOfOptionals) -> - {Pos,AccTerm,AccBytes}. + OptOrDef = + case {Ext,Prop} of + {noext,mandatory} -> + ignore; + {noext,_} -> %% OPTIONAL or DEFAULT + OptPos = get_optionality_pos(TextPos, OptTable), + Element = io_lib:format("Opt band (1 bsl ~w)", + [NumberOfOptionals - OptPos]), + fun(St) -> + emit(["case ",Element," of",nl]), + emit([" _Opt",TextPos," when _Opt",TextPos," > 0 ->"]), + St + end; + {{ext,_,_},_} -> %Extension + fun(St) -> + emit(["case Extensions of",nl, + " <<_:",Pos-1,",1:1,_/bitstring>> ->",nl]), + St + end + end, + Lines = gen_dec_line_imm(Erule, TopType, Comp, Tpos, DecInfObj, Ext), + Postamble = + case {Ext,Prop} of + {noext,mandatory} -> + ignore; + {noext,_} -> + fun(St) -> + emit([";",nl,"0 ->"]), + emit(["{"]), + gen_dec_component_no_val(Ext,Prop), + emit({",",{curr,bytes},"}",nl}), + emit([nl,"end"]), + St + end; + _ -> + fun(St) -> + emit([";",nl,"_ ->",nl]), + emit(["{"]), + case Type of + #type{def=#'SEQUENCE'{ + extaddgroup=Number2, + components=ExtGroupCompList2}} + when is_integer(Number2)-> + emit({"{extAddGroup,"}), + gen_dec_extaddGroup_no_val(Ext,ExtGroupCompList2), + emit({"}"}); + _ -> + gen_dec_component_no_val(Ext, Prop) + end, + emit({",",{curr,bytes},"}",nl}), + emit([nl,"end"]), + St + end + end, + AdvBuffer = {ignore,fun(St) -> + asn1ct_name:new(bytes), + St + end}, + [{group,[{safe,Comment},{safe,Preamble}, + {safe,OptOrDef}|Lines]++ + [{safe,Postamble},{safe,AdvBuffer}]}]. + +is_mandatory_predef_tab_c(noext, mandatory, + {"got objfun through args","ObjFun"}) -> + true; +is_mandatory_predef_tab_c(_, _, {"got objfun through args","ObjFun"}) -> + false; +is_mandatory_predef_tab_c(_,_,_) -> + true. gen_dec_extaddGroup_no_val(Ext,[#'ComponentType'{prop=Prop}])-> gen_dec_component_no_val(Ext,Prop), @@ -1208,8 +1301,14 @@ gen_dec_component_no_val({ext,_,_},mandatory) -> emit({"asn1_NOVALUE"}). -gen_dec_line(Erule,TopType,Cname,Type,Pos,DecInfObj,Ext,Prop) -> - Ctgenmod = asn1ct_gen:ct_gen_module(Erule), +gen_dec_line(Erule, TopType, Comp, Pos, DecInfObj, Ext) -> + Imm0 = gen_dec_line_imm(Erule, TopType, Comp, Pos, DecInfObj, Ext), + Init = {ignore,fun(_) -> {[],[]} end}, + Imm = [{group,[Init|Imm0]}], + emit_gen_dec_imm(Imm). + +gen_dec_line_imm(Erule, TopType, Comp, Pos, DecInfObj, Ext) -> + #'ComponentType'{name=Cname,typespec=Type} = Comp, Atype = case Type of #type{def=#'ObjectClassFieldType'{type=InnerType}} -> @@ -1218,175 +1317,235 @@ gen_dec_line(Erule,TopType,Cname,Type,Pos,DecInfObj,Ext,Prop) -> asn1ct_gen:get_inner(Type#type.def) end, - BytesVar0 = asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), - BytesVar = case Ext of - {ext,Ep,_} when Pos >= Ep -> - emit(["begin",nl,"{TmpVal",Pos,",Trem",Pos, - "}=?RT_PER:decode_open_type(", - {curr,bytes},",[]),",nl, - "{TmpValx",Pos,",_}="]), - io_lib:format("TmpVal~p",[Pos]); - _ -> BytesVar0 - end, - SaveBytes = - case Atype of - {typefield,_} -> + Pre = gen_dec_line_open_type(Erule, Ext, Pos), + Decode = gen_dec_line_special(Erule, Atype, TopType, Comp, DecInfObj, Ext), + Post = + fun({SaveBytes,Finish}) -> + {AccTerm,AccBytes} = Finish(), + #'ComponentType'{name=Cname} = Comp, case DecInfObj of - false -> % This is in a choice with typefield components - {Name,RestFieldNames} = - (Type#type.def)#'ObjectClassFieldType'.fieldname, - - asn1ct_name:new(tmpterm), - asn1ct_name:new(reason), - emit([indent(2),"{",{curr,tmpterm},", ",{next,bytes}, - "} = ?RT_PER:decode_open_type(",{curr,bytes}, - ", []),",nl]), - emit([indent(2),"case (catch ObjFun(", - {asis,Name},",",{curr,tmpterm},",telltype,", - {asis,RestFieldNames},")) of", nl]), - emit([indent(4),"{'EXIT',",{curr,reason},"} ->",nl]), - emit([indent(6),"exit({'Type not ", - "compatible with table constraint', ", - {curr,reason},"});",nl]), - asn1ct_name:new(tmpterm), - emit([indent(4),"{",{curr,tmpterm},", _} ->",nl]), - emit([indent(6),"{",{asis,Cname},", {",{curr,tmpterm},", ", - {next,bytes},"}}",nl]), - emit([indent(2),"end"]), - []; - {"got objfun through args","ObjFun"} -> - %% this is when the generated code gots the - %% objfun though arguments on function - %% invocation. - if - Ext == noext andalso Prop == mandatory -> - ok; - true -> - asn1ct_name:new(tmpterm), - asn1ct_name:new(tmpbytes), - emit([nl," {",{curr,tmpterm},", ",{curr,tmpbytes},"} ="]) - end, - {Name,RestFieldNames} = - (Type#type.def)#'ObjectClassFieldType'.fieldname, - emit(["?RT_PER:decode_open_type(",{curr,bytes}, - ", []),",nl]), - if - Ext == noext andalso Prop == mandatory -> - emit([{curr,term}," =",nl," "]); - true -> - emit([" {"]) - end, - emit(["case (catch ObjFun(",{asis,Name},",", - {curr,tmpterm},",telltype,", - {asis,RestFieldNames},")) of", nl]), - emit([" {'EXIT',",{curr,reason},"} ->",nl]), - emit([indent(6),"exit({'Type not ", - "compatible with table constraint', ", - {curr,reason},"});",nl]), - asn1ct_name:new(tmpterm), - emit([indent(4),"{",{curr,tmpterm},", _} ->",nl]), - emit([indent(6),{curr,tmpterm},nl]), - emit([indent(2),"end"]), - if - Ext == noext andalso Prop == mandatory -> - ok; - true -> - emit([",",nl,{curr,tmpbytes},"}"]) - end, - []; - _ -> - emit(["?RT_PER:decode_open_type(",{curr,bytes}, - ", [])"]), - RefedFieldName = - (Type#type.def)#'ObjectClassFieldType'.fieldname, - - [{Cname,RefedFieldName, - asn1ct_gen:mk_var(asn1ct_name:curr(term)), - asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)), - get_components_prop()}] - end; - {objectfield,PrimFieldName1,PFNList} -> - emit(["?RT_PER:decode_open_type(",{curr,bytes},", [])"]), - [{Cname,{PrimFieldName1,PFNList}, - asn1ct_gen:mk_var(asn1ct_name:curr(term)), - asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)), - get_components_prop()}]; - _ -> - CurrMod = get(currmod), - case asn1ct_gen:type(Atype) of - #'Externaltypereference'{module=CurrMod,type=EType} -> - emit({"'dec_",EType,"'(",BytesVar,",telltype)"}); - #'Externaltypereference'{module=Mod,type=EType} -> - emit({"'",Mod,"':'dec_",EType,"'(",BytesVar, - ",telltype)"}); - {primitive,bif} -> - case Atype of - {fixedtypevaluefield,_,Btype} -> - Ctgenmod:gen_dec_prim(Erule,Btype, - BytesVar); - _ -> - Ctgenmod:gen_dec_prim(Erule,Type, - BytesVar) - end; - 'ASN1_OPEN_TYPE' -> - case Type#type.def of - #'ObjectClassFieldType'{type=OpenType} -> - Ctgenmod:gen_dec_prim(Erule,#type{def=OpenType}, - BytesVar); - _ -> - Ctgenmod:gen_dec_prim(Erule,Type, - BytesVar) - end; - #typereference{val=Dname} -> - emit({"'dec_",Dname,"'(",BytesVar,",telltype)"}); - {notype,_} -> - emit({"'dec_",Atype,"'(",BytesVar,",telltype)"}); - {constructed,bif} -> - NewTypename = [Cname|TopType], - case Type#type.tablecinf of - [{objfun,_}|_R] -> - emit({"'dec_",asn1ct_gen:list2name(NewTypename), - "'(",BytesVar,", telltype, ObjFun)"}); - _ -> - emit({"'dec_",asn1ct_gen:list2name(NewTypename), - "'(",BytesVar,", telltype)"}) - end - end, - case DecInfObj of - {Cname,{_,OSet,UniqueFName,ValIndex}} -> - Term = asn1ct_gen:mk_var(asn1ct_name:curr(term)), - ValueMatch = value_match(ValIndex,Term), - {ObjSetMod,ObjSetName} = - case OSet of - {M,O} -> {{asis,M},O}; - _ -> {"?MODULE",OSet} + {Cname,ObjSet} -> + ObjSetRef = + case ObjSet of + {deep,OSName,_,_} -> + OSName; + _ -> ObjSet end, - emit({",",nl,"ObjFun = ",ObjSetMod, - ":'getdec_",ObjSetName,"'(", - {asis,UniqueFName},", ",ValueMatch,")"}); + {AccTerm++[{ObjSetRef,Cname, + asn1ct_gen:mk_var(asn1ct_name:curr(term))}], + AccBytes++SaveBytes}; _ -> - ok - end, - [] + {AccTerm,AccBytes++SaveBytes} + end end, - case Ext of - {ext,Ep2,_} when Pos >= Ep2 -> - emit([", {TmpValx",Pos,",Trem",Pos,"}",nl,"end"]); - _ -> true - end, - %% Prepare return value + [Pre,Decode,{safe,Post}]. + +gen_dec_line_open_type(Erule, {ext,Ep,_}, Pos) when Pos >= Ep -> + Imm = asn1ct_imm:per_dec_open_type(is_aligned(Erule)), + {safe,fun(St) -> + emit(["begin",nl]), + BytesVar = asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), + {Dst,DstBuf} = asn1ct_imm:dec_slim_cg(Imm, BytesVar), + emit([",",nl,"{TmpValx",Pos,",_} = "]), + {Dst, + fun() -> + emit([",",nl, + "{TmpValx",Pos,",",DstBuf,"}",nl, + "end"]), + St + end} + end}; +gen_dec_line_open_type(_, _, _) -> + {safe,fun(St) -> + {asn1ct_gen:mk_var(asn1ct_name:curr(bytes)), + fun() -> St end} + end}. + +gen_dec_line_special(_, {typefield,_}, _TopType, Comp, + DecInfObj, Ext) -> + #'ComponentType'{name=Cname,typespec=Type,prop=Prop} = Comp, + fun({_BytesVar,PrevSt}) -> + case DecInfObj of + false -> % This is in a choice with typefield components + {Name,RestFieldNames} = + (Type#type.def)#'ObjectClassFieldType'.fieldname, + + asn1ct_name:new(tmpterm), + asn1ct_name:new(reason), + emit([indent(2),"{",{curr,tmpterm},", ",{next,bytes}, + "} = ?RT_PER:decode_open_type(",{curr,bytes}, + ", []),",nl]), + emit([indent(2),"case (catch ObjFun(", + {asis,Name},",",{curr,tmpterm},",telltype,", + {asis,RestFieldNames},")) of", nl]), + emit([indent(4),"{'EXIT',",{curr,reason},"} ->",nl]), + emit([indent(6),"exit({'Type not ", + "compatible with table constraint', ", + {curr,reason},"});",nl]), + asn1ct_name:new(tmpterm), + emit([indent(4),"{",{curr,tmpterm},", _} ->",nl]), + emit([indent(6),"{",{asis,Cname},", {",{curr,tmpterm},", ", + {next,bytes},"}}",nl]), + emit([indent(2),"end"]), + {[],PrevSt}; + {"got objfun through args","ObjFun"} -> + %% this is when the generated code gots the + %% objfun though arguments on function + %% invocation. + if + Ext == noext andalso Prop == mandatory -> + ok; + true -> + asn1ct_name:new(tmpterm), + asn1ct_name:new(tmpbytes), + emit([nl," {",{curr,tmpterm},", ",{curr,tmpbytes},"} ="]) + end, + {Name,RestFieldNames} = + (Type#type.def)#'ObjectClassFieldType'.fieldname, + emit(["?RT_PER:decode_open_type(",{curr,bytes}, + ", []),",nl]), + if + Ext == noext andalso Prop == mandatory -> + emit([{curr,term}," =",nl," "]); + true -> + emit([" {"]) + end, + emit(["case (catch ObjFun(",{asis,Name},",", + {curr,tmpterm},",telltype,", + {asis,RestFieldNames},")) of", nl]), + emit([" {'EXIT',",{curr,reason},"} ->",nl]), + emit([indent(6),"exit({'Type not ", + "compatible with table constraint', ", + {curr,reason},"});",nl]), + asn1ct_name:new(tmpterm), + emit([indent(4),"{",{curr,tmpterm},", _} ->",nl]), + emit([indent(6),{curr,tmpterm},nl]), + emit([indent(2),"end"]), + if + Ext == noext andalso Prop == mandatory -> + ok; + true -> + emit([",",nl,{curr,tmpbytes},"}"]) + end, + {[],PrevSt}; + _ -> + emit(["?RT_PER:decode_open_type(",{curr,bytes}, + ", [])"]), + RefedFieldName = + (Type#type.def)#'ObjectClassFieldType'.fieldname, + + {[{Cname,RefedFieldName, + asn1ct_gen:mk_var(asn1ct_name:curr(term)), + asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)), + Prop}],PrevSt} + end + end; +gen_dec_line_special(_, {objectfield,PrimFieldName1,PFNList}, _TopType, + Comp, _DecInfObj, _Ext) -> + fun({_BytesVar,PrevSt}) -> + emit(["?RT_PER:decode_open_type(",{curr,bytes},", [])"]), + #'ComponentType'{name=Cname,prop=Prop} = Comp, + SaveBytes = [{Cname,{PrimFieldName1,PFNList}, + asn1ct_gen:mk_var(asn1ct_name:curr(term)), + asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)), + Prop}], + {SaveBytes,PrevSt} + end; +gen_dec_line_special(Erule, Atype, TopType, Comp, DecInfObj, _Ext) -> + case gen_dec_line_other(Erule, Atype, TopType, Comp) of + Fun when is_function(Fun, 1) -> + fun({BytesVar,PrevSt}) -> + Fun(BytesVar), + gen_dec_line_dec_inf(Comp, DecInfObj), + {[],PrevSt} + end; + Imm0 -> + {imm,Imm0, + fun(Imm, {BytesVar,PrevSt}) -> + asn1ct_imm:dec_code_gen(Imm, BytesVar), + gen_dec_line_dec_inf(Comp, DecInfObj), + {[],PrevSt} + end} + end. + +gen_dec_line_dec_inf(Comp, DecInfObj) -> + #'ComponentType'{name=Cname} = Comp, case DecInfObj of - {Cname,ObjSet} -> - ObjSetRef = - case ObjSet of - {deep,OSName,_,_} -> - OSName; - _ -> ObjSet + {Cname,{_,OSet,UniqueFName,ValIndex}} -> + Term = asn1ct_gen:mk_var(asn1ct_name:curr(term)), + ValueMatch = value_match(ValIndex,Term), + {ObjSetMod,ObjSetName} = + case OSet of + {M,O} -> {{asis,M},O}; + _ -> {"?MODULE",OSet} end, - {[{ObjSetRef,Cname,asn1ct_gen:mk_var(asn1ct_name:curr(term))}], - SaveBytes}; + emit({",",nl,"ObjFun = ",ObjSetMod, + ":'getdec_",ObjSetName,"'(", + {asis,UniqueFName},", ",ValueMatch,")"}); _ -> - {[],SaveBytes} + ok + end. + +gen_dec_line_other(Erule, Atype, TopType, Comp) -> + #'ComponentType'{name=Cname,typespec=Type} = Comp, + CurrMod = get(currmod), + Ctgenmod = asn1ct_gen:ct_gen_module(Erule), + case asn1ct_gen:type(Atype) of + #'Externaltypereference'{module=CurrMod,type=EType} -> + fun(BytesVar) -> + emit({"'dec_",EType,"'(",BytesVar,",telltype)"}) + end; + #'Externaltypereference'{module=Mod,type=EType} -> + fun(BytesVar) -> + emit({"'",Mod,"':'dec_",EType,"'(",BytesVar, + ",telltype)"}) + end; + {primitive,bif} -> + case Atype of + {fixedtypevaluefield,_,Btype} -> + gen_dec_prim(Ctgenmod, Erule, Btype); + _ -> + gen_dec_prim(Ctgenmod, Erule, Type) + end; + 'ASN1_OPEN_TYPE' -> + case Type#type.def of + #'ObjectClassFieldType'{type=OpenType} -> + gen_dec_prim(Ctgenmod, Erule, #type{def=OpenType}); + _ -> + gen_dec_prim(Ctgenmod, Erule, Type) + end; + #typereference{val=Dname} -> + fun(BytesVar) -> + emit({"'dec_",Dname,"'(",BytesVar,",telltype)"}) + end; + {notype,_} -> + fun(BytesVar) -> + emit({"'dec_",Atype,"'(",BytesVar,",telltype)"}) + end; + {constructed,bif} -> + NewTypename = [Cname|TopType], + case Type#type.tablecinf of + [{objfun,_}|_R] -> + fun(BytesVar) -> + emit({"'dec_",asn1ct_gen:list2name(NewTypename), + "'(",BytesVar,", telltype, ObjFun)"}) + end; + _ -> + fun(BytesVar) -> + emit({"'dec_",asn1ct_gen:list2name(NewTypename), + "'(",BytesVar,", telltype)"}) + end + end + end. + +gen_dec_prim(Ctgenmod, Erule, Type) -> + case asn1ct_gen_per:gen_dec_imm(Erule, Type) of + no -> + fun(BytesVar) -> + Ctgenmod:gen_dec_prim(Erule, Type, BytesVar) + end; + Imm -> + Imm end. gen_enc_choice(Erule,TopType,CompList,Ext) -> @@ -1640,18 +1799,12 @@ wrap_extensionAdditionGroups([],_,Acc,_,_) -> lists:reverse(Acc). -wrap_gen_dec_line(Erule,C,TopType,Cname,Type,Pos,DIO,Ext) -> +wrap_gen_dec_line(Erule,C,TopType,_Cname,_Type,Pos,DIO,Ext) -> put(component_type,{true,C}), - gen_dec_line(Erule,TopType,Cname,Type,Pos,DIO,Ext,mandatory), + gen_dec_line(Erule, TopType, C#'ComponentType'{prop=mandatory}, + Pos, DIO, Ext), erase(component_type). -get_components_prop() -> - case get(component_type) of - undefined -> - mandatory; - {true,#'ComponentType'{prop=Prop}} -> Prop - end. - value_match(Index,Value) when is_atom(Value) -> value_match(Index,atom_to_list(Value)); diff --git a/lib/asn1/src/asn1ct_gen.erl b/lib/asn1/src/asn1ct_gen.erl index b0990e92cf..57b12ce186 100644 --- a/lib/asn1/src/asn1ct_gen.erl +++ b/lib/asn1/src/asn1ct_gen.erl @@ -1405,7 +1405,7 @@ gen_head(Erules,Mod,Hrl) -> emit({"%% Purpose: encoder and decoder to the types in mod ",Mod,nl,nl}), emit({"-module('",Mod,"').",nl}), put(currmod,Mod), - %emit({"-compile(export_all).",nl}), + emit({"-compile(nowarn_unused_vars).",nl}), case {Hrl,lists:member(inline,get(encoding_options))} of {0,_} -> true; {_,true} -> true; diff --git a/lib/asn1/src/asn1ct_gen_per.erl b/lib/asn1/src/asn1ct_gen_per.erl index 3e100fc833..eb4cfdccc6 100644 --- a/lib/asn1/src/asn1ct_gen_per.erl +++ b/lib/asn1/src/asn1ct_gen_per.erl @@ -25,6 +25,7 @@ -include("asn1_records.hrl"). %-compile(export_all). +-export([gen_dec_imm/2]). -export([pgen/4,gen_dec_prim/3,gen_encode_prim/4]). -export([gen_obj_code/3,gen_objectset_code/2]). -export([gen_decode/2, gen_decode/3]). @@ -146,10 +147,12 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) -> case D#type.def of 'INTEGER' -> emit({"?RT_PER:encode_integer(", %fel - {asis,effective_constraint(integer,Constraint)},",",Value,")"}); + {asis,asn1ct_imm:effective_constraint(integer,Constraint)}, + ",",Value,")"}); {'INTEGER',NamedNumberList} -> emit({"?RT_PER:encode_integer(", - {asis,effective_constraint(integer,Constraint)},",",Value,",", + {asis,asn1ct_imm:effective_constraint(integer,Constraint)}, + ",",Value,",", {asis,NamedNumberList},")"}); {'ENUMERATED',{Nlist1,Nlist2}} -> NewList = lists:concat([[{0,X}||{X,_} <- Nlist1],['EXT_MARK'],[{1,X}||{X,_} <- Nlist2]]), @@ -184,7 +187,7 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) -> {asis,Constraint},",",Value,",", {asis,NamedNumberList},")"}); 'NULL' -> - emit({"?RT_PER:encode_null(",Value,")"}); + emit("[]"); 'OBJECT IDENTIFIER' -> emit({"?RT_PER:encode_object_identifier(",Value,")"}); 'RELATIVE-OID' -> @@ -295,107 +298,16 @@ emit_enc_enumerated_case(_Per,C, {0,EnumName}, Count) -> emit_enc_enumerated_case(_Erule, C, EnumName, Count) -> emit(["'",EnumName,"' -> ?RT_PER:encode_integer(",{asis,C},", ",Count,")"]). -%% effective_constraint(Type,C) -%% Type = atom() -%% C = [C1,...] -%% C1 = {'SingleValue',SV} | {'ValueRange',VR} | {atom(),term()} -%% SV = integer() | [integer(),...] -%% VR = {Lb,Ub} -%% Lb = 'MIN' | integer() -%% Ub = 'MAX' | integer() -%% Returns a single value if C only has a single value constraint, and no -%% value range constraints, that constrains to a single value, otherwise -%% returns a value range that has the lower bound set to the lowest value -%% of all single values and lower bound values in C and the upper bound to -%% the greatest value. -effective_constraint(integer,[C={{_,_},_}|_Rest]) -> % extension - [C]; %% [C|effective_constraint(integer,Rest)]; XXX what is possible ??? -effective_constraint(integer,C) -> - SVs = get_constraints(C,'SingleValue'), - SV = effective_constr('SingleValue',SVs), - VRs = get_constraints(C,'ValueRange'), - VR = effective_constr('ValueRange',VRs), - greatest_common_range(SV,VR). - -effective_constr(_,[]) -> - []; -effective_constr('SingleValue',List) -> - SVList = lists:flatten(lists:map(fun(X)->element(2,X)end,List)), - %% Sort and remove duplicates before generating SingleValue or ValueRange - %% In case of ValueRange, also check for 'MIN and 'MAX' - case lists:usort(SVList) of - [N] -> - [{'SingleValue',N}]; - L when is_list(L) -> - [{'ValueRange',{least_Lb(L),greatest_Ub(L)}}] - end; -effective_constr('ValueRange',List) -> - LBs = lists:map(fun({_,{Lb,_}})-> Lb end,List), - UBs = lists:map(fun({_,{_,Ub}})-> Ub end,List), - Lb = least_Lb(LBs), - [{'ValueRange',{Lb,lists:max(UBs)}}]. - -greatest_common_range([],VR) -> - VR; -greatest_common_range(SV,[]) -> - SV; -greatest_common_range(SV,VR) -> - greatest_common_range2(mk_vr(SV),mk_vr(VR)). -greatest_common_range2({_,Int},{'MIN',Ub}) when is_integer(Int), - Int > Ub -> - [{'ValueRange',{'MIN',Int}}]; -greatest_common_range2({_,Int},{Lb,Ub}) when is_integer(Int), - Int < Lb -> - [{'ValueRange',{Int,Ub}}]; -greatest_common_range2({_,Int},VR={_Lb,_Ub}) when is_integer(Int) -> - [{'ValueRange',VR}]; -greatest_common_range2({_,L},{Lb,Ub}) when is_list(L) -> - Min = least_Lb([Lb|L]), - Max = greatest_Ub([Ub|L]), - [{'ValueRange',{Min,Max}}]; -greatest_common_range2({Lb1,Ub1},{Lb2,Ub2}) -> - Min = least_Lb([Lb1,Lb2]), - Max = greatest_Ub([Ub1,Ub2]), - [{'ValueRange',{Min,Max}}]. - -mk_vr([{Type,I}]) when is_atom(Type), is_integer(I) -> - {I,I}; -mk_vr([{Type,{Lb,Ub}}]) when is_atom(Type) -> - {Lb,Ub}; -mk_vr(Other) -> - Other. - -least_Lb(L) -> - case lists:member('MIN',L) of - true -> 'MIN'; - _ -> lists:min(L) - end. - -greatest_Ub(L) -> - case lists:member('MAX',L) of - true -> 'MAX'; - _ -> lists:max(L) - end. - - -get_constraints(L=[{Key,_}],Key) -> - L; -get_constraints([],_) -> - []; -get_constraints(C,Key) -> - {value,L} = keysearch_allwithkey(Key,1,C,[]), - L. - -keysearch_allwithkey(Key,Ix,C,Acc) -> - case lists:keysearch(Key,Ix,C) of - false -> - {value,Acc}; - {value,T} -> - RestC = lists:delete(T,C), - keysearch_allwithkey(Key,Ix,RestC,[T|Acc]) +get_constraint([{Key,V}], Key) -> + V; +get_constraint([], _) -> + no; +get_constraint(C, Key) -> + case lists:keyfind(Key, 1, C) of + false -> no; + {Key,V} -> V end. - %% Object code generating for encoding and decoding %% ------------------------------------------------ @@ -1228,19 +1140,43 @@ gen_decode_user(Erules,D) when is_record(D,typedef) -> exit({error,{asn1,{unknown,Other}}}) end. +gen_dec_imm(Erule, #type{def=Name,constraint=C}) -> + Aligned = case Erule of + uper -> false; + per -> true + end, + gen_dec_imm_1(Name, C, Aligned). + +gen_dec_imm_1('BOOLEAN', _Constr, _Aligned) -> + asn1ct_imm:per_dec_boolean(); +gen_dec_imm_1({'ENUMERATED',{Base,Ext}}, _Constr, Aligned) -> + asn1ct_imm:per_dec_enumerated(Base, Ext, Aligned); +gen_dec_imm_1({'ENUMERATED',NamedNumberList}, _Constr, Aligned) -> + asn1ct_imm:per_dec_enumerated(NamedNumberList, Aligned); +gen_dec_imm_1('INTEGER', Constr, Aligned) -> + asn1ct_imm:per_dec_integer(Constr, Aligned); +gen_dec_imm_1({'INTEGER',NamedNumberList}, Constraint, Aligned) -> + asn1ct_imm:per_dec_named_integer(Constraint, + NamedNumberList, + Aligned); +gen_dec_imm_1('OCTET STRING', Constraint, Aligned) -> + SzConstr = get_constraint(Constraint, 'SizeConstraint'), + Imm = asn1ct_imm:per_dec_octet_string(SzConstr, Aligned), + {convert,binary_to_list,Imm}; +gen_dec_imm_1(_, _, _) -> no. + +gen_dec_prim(Erule, Type, BytesVar) -> + case gen_dec_imm(Erule, Type) of + no -> + gen_dec_prim_1(Erule, Type, BytesVar); + Imm -> + asn1ct_imm:dec_code_gen(Imm, BytesVar) + end. -gen_dec_prim(Erules,Att,BytesVar) -> - Typename = Att#type.def, - Constraint = Att#type.constraint, +gen_dec_prim_1(Erule, + #type{def=Typename,constraint=Constraint}=Att, + BytesVar) -> case Typename of - 'INTEGER' -> - emit({"?RT_PER:decode_integer(",BytesVar,",", - {asis,effective_constraint(integer,Constraint)},")"}); - {'INTEGER',NamedNumberList} -> - emit({"?RT_PER:decode_integer(",BytesVar,",", - {asis,effective_constraint(integer,Constraint)},",", - {asis,NamedNumberList},")"}); - 'REAL' -> emit({"?RT_PER:decode_real(",BytesVar,")"}); @@ -1256,8 +1192,7 @@ gen_dec_prim(Erules,Att,BytesVar) -> {asis,NamedNumberList},")"}) end; 'NULL' -> - emit({"?RT_PER:decode_null(", - BytesVar,")"}); + emit({"{'NULL',",BytesVar,"}"}); 'OBJECT IDENTIFIER' -> emit({"?RT_PER:decode_object_identifier(", BytesVar,")"}); @@ -1267,24 +1202,6 @@ gen_dec_prim(Erules,Att,BytesVar) -> 'ObjectDescriptor' -> emit({"?RT_PER:decode_ObjectDescriptor(", BytesVar,")"}); - {'ENUMERATED',{NamedNumberList1,NamedNumberList2}} -> - NewTup = {list_to_tuple([X||{X,_} <- NamedNumberList1]), - list_to_tuple([X||{X,_} <- NamedNumberList2])}, - NewC = [{'ValueRange',{0,size(element(1,NewTup))-1}}], - emit({"?RT_PER:decode_enumerated(",BytesVar,",", - {asis,NewC},",", - {asis,NewTup},")"}); - {'ENUMERATED',NamedNumberList} -> - NewTup = list_to_tuple([X||{X,_} <- NamedNumberList]), - NewC = [{'ValueRange',{0,size(NewTup)-1}}], - emit({"?RT_PER:decode_enumerated(",BytesVar,",", - {asis,NewC},",", - {asis,NewTup},")"}); - 'BOOLEAN'-> - emit({"?RT_PER:decode_boolean(",BytesVar,")"}); - 'OCTET STRING' -> - emit({"?RT_PER:decode_octet_string(",BytesVar,",", - {asis,Constraint},")"}); 'NumericString' -> emit({"?RT_PER:decode_NumericString(",BytesVar,",", {asis,Constraint},")"}); @@ -1323,7 +1240,7 @@ gen_dec_prim(Erules,Att,BytesVar) -> 'UTF8String' -> emit({"?RT_PER:decode_UTF8String(",BytesVar,")"}); 'ANY' -> - case Erules of + case Erule of per -> emit(["fun() -> {XTerm,YTermXBytes} = ?RT_PER:decode_open_type(",BytesVar,",",{asis,Constraint}, "), {binary_to_list(XTerm),XBytes} end ()"]); _ -> @@ -1345,7 +1262,7 @@ gen_dec_prim(Erules,Att,BytesVar) -> emit([" {YTerm,_} = dec_",Tname,"(XTerm,mandatory),",nl]), emit([" {YTerm,XBytes} end(",BytesVar,")"]); _ -> - case Erules of + case Erule of per -> emit(["fun() -> {XTerm,XBytes} = ?RT_PER:decode_open_type(",BytesVar,", []), {binary_to_list(XTerm),XBytes} end()"]); _ -> @@ -1353,11 +1270,11 @@ gen_dec_prim(Erules,Att,BytesVar) -> end end; #'ObjectClassFieldType'{} -> - case asn1ct_gen:get_inner(Att#type.def) of + case asn1ct_gen:get_inner(Typename) of {fixedtypevaluefield,_,InnerType} -> - gen_dec_prim(Erules,InnerType,BytesVar); + gen_dec_prim(Erule, InnerType, BytesVar); T -> - gen_dec_prim(Erules,Att#type{def=T},BytesVar) + gen_dec_prim(Erule, Att#type{def=T}, BytesVar) end; Other -> exit({'cant decode' ,Other}) diff --git a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl index 16eec92847..ecd212c3e3 100644 --- a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl +++ b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl @@ -176,7 +176,7 @@ gen_encode_prim(Erules,D,DoTag,Value) when is_record(D,type) -> {asis,NamedNumberList},")"}) end; 'NULL' -> - emit({"?RT_PER:encode_null(",Value,")"}); + emit("[]"); 'OBJECT IDENTIFIER' -> emit({"?RT_PER:encode_object_identifier(",Value,")"}); 'RELATIVE-OID' -> @@ -450,17 +450,6 @@ emit_enc_octet_string(_Erules,Constraint,Value) -> emit({" ?RT_PER:encode_octet_string(",{asis,C},",false,",Value,")",nl}) end. -emit_dec_octet_string(Constraint,BytesVar) -> - case get_constraint(Constraint,'SizeConstraint') of - 0 -> - emit({" {[],",BytesVar,"}",nl}); - {_,0} -> - emit({" {[],",BytesVar,"}",nl}); - C -> - emit({" ?RT_PER:decode_octet_string(",BytesVar,",", - {asis,C},",false)",nl}) - end. - emit_enc_integer_case(Value) -> case get(component_type) of {true,#'ComponentType'{prop=Prop}} -> @@ -624,23 +613,6 @@ get_constraint(C,Key) -> V end. -get_constraints(L=[{Key,_}],Key) -> - L; -get_constraints([],_) -> - []; -get_constraints(C,Key) -> - {value,L} = keysearch_allwithkey(Key,1,C,[]), - L. - -keysearch_allwithkey(Key,Ix,C,Acc) -> - case lists:keysearch(Key,Ix,C) of - false -> - {value,Acc}; - {value,T} -> - RestC = lists:delete(T,C), - keysearch_allwithkey(Key,Ix,RestC,[T|Acc]) - end. - %% effective_constraint(Type,C) %% Type = atom() %% C = [C1,...] @@ -657,69 +629,9 @@ keysearch_allwithkey(Key,Ix,C,Acc) -> effective_constraint(integer,[C={{_,_},_}|_Rest]) -> % extension [C]; %% [C|effective_constraint(integer,Rest)]; XXX what is possible ??? effective_constraint(integer,C) -> - SVs = get_constraints(C,'SingleValue'), - SV = effective_constr('SingleValue',SVs), - VRs = get_constraints(C,'ValueRange'), - VR = effective_constr('ValueRange',VRs), - CRange = greatest_common_range(SV,VR), - pre_encode(integer,CRange); + pre_encode(integer, asn1ct_imm:effective_constraint(integer, C)); effective_constraint(bitstring,C) -> - get_constraint(C,'SizeConstraint'). - -effective_constr(_,[]) -> - []; -effective_constr('SingleValue',List) -> - SVList = lists:flatten(lists:map(fun(X)->element(2,X)end,List)), - %% Sort and remove duplicates before generating SingleValue or ValueRange - %% In case of ValueRange, also check for 'MIN and 'MAX' - case lists:usort(SVList) of - [N] -> - [{'SingleValue',N}]; - L when is_list(L) -> - [{'ValueRange',{least_Lb(L),greatest_Ub(L)}}] - end; -effective_constr('ValueRange',List) -> - LBs = lists:map(fun({_,{Lb,_}})-> Lb end,List), - UBs = lists:map(fun({_,{_,Ub}})-> Ub end,List), - Lb = least_Lb(LBs), - [{'ValueRange',{Lb,lists:max(UBs)}}]. - -greatest_common_range([],VR) -> - VR; -greatest_common_range(SV,[]) -> - SV; -greatest_common_range([{_,Int}],[{_,{'MIN',Ub}}]) when is_integer(Int), - Int > Ub -> - [{'ValueRange',{'MIN',Int}}]; -greatest_common_range([{_,Int}],[{_,{Lb,Ub}}]) when is_integer(Int), - Int < Lb -> - [{'ValueRange',{Int,Ub}}]; -greatest_common_range([{_,Int}],VR=[{_,{_Lb,_Ub}}]) when is_integer(Int) -> - VR; -greatest_common_range([{_,L}],[{_,{Lb,Ub}}]) when is_list(L) -> - Min = least_Lb([Lb|L]), - Max = greatest_Ub([Ub|L]), - [{'ValueRange',{Min,Max}}]; -greatest_common_range([{_,{Lb1,Ub1}}],[{_,{Lb2,Ub2}}]) -> - Min = least_Lb([Lb1,Lb2]), - Max = greatest_Ub([Ub1,Ub2]), - [{'ValueRange',{Min,Max}}]. - - -least_Lb(L) -> - case lists:member('MIN',L) of - true -> 'MIN'; - _ -> lists:min(L) - end. - -greatest_Ub(L) -> - case lists:member('MAX',L) of - true -> 'MAX'; - _ -> lists:max(L) - end. - - - + asn1ct_imm:effective_constraint(bitstring, C). pre_encode(integer,[]) -> []; @@ -1586,17 +1498,9 @@ gen_dec_prim(Erules,Att,BytesVar) -> Constraint = Att#type.constraint, case Typename of 'INTEGER' -> - EffectiveConstr = effective_constraint(integer,Constraint), - emit_dec_integer(EffectiveConstr,BytesVar); -% emit({"?RT_PER:decode_integer(",BytesVar,",", -% {asis,EffectiveConstr},")"}); - {'INTEGER',NamedNumberList} -> - EffectiveConstr = effective_constraint(integer,Constraint), - emit_dec_integer(EffectiveConstr,BytesVar,NamedNumberList); -% emit({"?RT_PER:decode_integer(",BytesVar,",", -% {asis,EffectiveConstr},",", -% {asis,NamedNumberList},")"}); - + asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar); + {'INTEGER',_NamedNumberList} -> + asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar); 'REAL' -> emit(["?RT_PER:decode_real(",BytesVar,")"]); @@ -1612,8 +1516,7 @@ gen_dec_prim(Erules,Att,BytesVar) -> {asis,NamedNumberList},")"}) end; 'NULL' -> - emit({"?RT_PER:decode_null(", - BytesVar,")"}); + emit({"{'NULL',",BytesVar,"}"}); 'OBJECT IDENTIFIER' -> emit({"?RT_PER:decode_object_identifier(", BytesVar,")"}); @@ -1623,23 +1526,13 @@ gen_dec_prim(Erules,Att,BytesVar) -> 'ObjectDescriptor' -> emit({"?RT_PER:decode_ObjectDescriptor(", BytesVar,")"}); - {'ENUMERATED',{NamedNumberList1,NamedNumberList2}} -> - NewTup = {list_to_tuple([X||{X,_} <- NamedNumberList1]), - list_to_tuple([X||{X,_} <- NamedNumberList2])}, - NewC = [{'ValueRange',{0,size(element(1,NewTup))-1}}], - emit({"?RT_PER:decode_enumerated(",BytesVar,",", - {asis,NewC},",", - {asis,NewTup},")"}); - {'ENUMERATED',NamedNumberList} -> - NewNNL = [X||{X,_} <- NamedNumberList], - NewC = effective_constraint(integer, - [{'ValueRange',{0,length(NewNNL)-1}}]), - emit_dec_enumerated(BytesVar,NewC,NewNNL); + {'ENUMERATED',_} -> + asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar); 'BOOLEAN'-> - emit({"?RT_PER:decode_boolean(",BytesVar,")"}); + asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar); 'OCTET STRING' -> - emit_dec_octet_string(Constraint,BytesVar); + asn1ct_gen_per:gen_dec_prim(Erules, Att, BytesVar); 'NumericString' -> emit_dec_known_multiplier_string('NumericString', @@ -1716,88 +1609,6 @@ gen_dec_prim(Erules,Att,BytesVar) -> exit({'cant decode' ,Other}) end. - -emit_dec_integer(C,BytesVar,NNL) -> - asn1ct_name:new(tmpterm), - asn1ct_name:new(buffer), - Tmpterm = asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)), - Buffer = asn1ct_gen:mk_var(asn1ct_name:curr(buffer)), - emit({" begin {",{curr,tmpterm},",",{curr,buffer},"} = ",nl}), - emit_dec_integer(C,BytesVar), - emit({",",nl," case ",Tmpterm," of",nl}), - lists:map(fun({Name,Int})->emit({" ",Int," -> {",{asis,Name},",", - Buffer,"};",nl}); - (_)-> exit({error,{asn1,{"error in named number list",NNL}}}) - end, - NNL), - emit({" _ -> {",Tmpterm,",",Buffer,"}",nl}), - emit({" end",nl}), % end of case - emit(" end"). % end of begin - -emit_dec_integer([{'SingleValue',Int}],BytesVar) when is_integer(Int) -> - emit(["{",Int,",",BytesVar,"}"]); -emit_dec_integer([{_,{Lb,_Ub},_Range,{BitsOrOctets,N}}],BytesVar) -> - GetBorO = - case BitsOrOctets of - bits -> "getbits"; - _ -> "getoctets" - end, - asn1ct_name:new(tmpterm), - asn1ct_name:new(tmpremain), - emit({" begin",nl," {",{curr,tmpterm},",",{curr,tmpremain},"}=", - "?RT_PER:",GetBorO,"(",BytesVar,",",N,"),",nl}), - emit({" {",{curr,tmpterm},"+",Lb,",",{curr,tmpremain},"}",nl, - " end"}); -emit_dec_integer([{_,{'MIN',_}}],BytesVar) -> - emit({"?RT_PER:decode_unconstrained_number(",BytesVar,")"}); -emit_dec_integer([{_,{Lb,'MAX'}}],BytesVar) -> - emit({"?RT_PER:decode_semi_constrained_number(",BytesVar,",",Lb,")"}); -emit_dec_integer([{'ValueRange',VR={Lb,Ub}}],BytesVar) -> - Range = Ub-Lb+1, - emit({"?RT_PER:decode_constrained_number(",BytesVar,",", - {asis,VR},",",Range,")"}); -emit_dec_integer(C=[{Rc,_}],BytesVar) when is_tuple(Rc) -> - emit({"?RT_PER:decode_integer(",BytesVar,",",{asis,C},")"}); -emit_dec_integer(_,BytesVar) -> - emit({"?RT_PER:decode_unconstrained_number(",BytesVar,")"}). - - -emit_dec_enumerated(BytesVar,C,NamedNumberList) -> - emit_dec_enumerated_begin(),% emits a begin if component - asn1ct_name:new(tmpterm), - Tmpterm = asn1ct_gen:mk_var(asn1ct_name:curr(tmpterm)), - asn1ct_name:new(tmpremain), - Tmpremain = asn1ct_gen:mk_var(asn1ct_name:curr(tmpremain)), - emit({" {",{curr,tmpterm},",",{curr,tmpremain},"} =",nl}), - emit_dec_integer(C,BytesVar), - emit({",",nl," case ",Tmpterm," of "}), - - Cases=lists:flatten(dec_enumerated_cases(NamedNumberList,Tmpremain,0)), - emit({Cases++"_->exit({error,{asn1,{decode_enumerated,{",Tmpterm, - ",",{asis,NamedNumberList},"}}}}) end",nl}), - emit_dec_enumerated_end(). - -emit_dec_enumerated_begin() -> - case get(component_type) of - {true,_} -> - emit({" begin",nl}); - _ -> ok - end. - -emit_dec_enumerated_end() -> - case get(component_type) of - {true,_} -> - emit(" end"); - _ -> ok - end. - - -dec_enumerated_cases([Name|Rest],Tmpremain,No) -> - io_lib:format("~w->{~w,~s};",[No,Name,Tmpremain])++ - dec_enumerated_cases(Rest,Tmpremain,No+1); -dec_enumerated_cases([],_,_) -> - "". - %% For PER the ExtensionAdditionGroup notation has significance for the encoding and decoding %% the components within the ExtensionAdditionGroup is treated in a similar way as if they %% have been specified within a SEQUENCE, therefore we construct a fake sequence type here diff --git a/lib/asn1/src/asn1ct_imm.erl b/lib/asn1/src/asn1ct_imm.erl new file mode 100644 index 0000000000..34bb0b8714 --- /dev/null +++ b/lib/asn1/src/asn1ct_imm.erl @@ -0,0 +1,626 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2012. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% +%% +-module(asn1ct_imm). +-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]). +-export([optimize_alignment/1,optimize_alignment/2, + dec_slim_cg/2,dec_code_gen/2]). +-export([effective_constraint/2]). +-import(asn1ct_gen, [emit/1]). + +-record(st, {var, + base}). + +dec_slim_cg(Imm0, BytesVar) -> + {Imm,_} = optimize_alignment(Imm0), + asn1ct_name:new(v), + [H|T] = atom_to_list(asn1ct_name:curr(v)) ++ "@", + VarBase = [H-($a-$A)|T], + St0 = #st{var=0,base=VarBase}, + {Res,Pre,_} = flatten(Imm, BytesVar, St0), + dcg_list_outside(Pre), + Res. + +dec_code_gen(Imm, BytesVar) -> + emit(["begin",nl]), + {Dst,DstBuf} = dec_slim_cg(Imm, BytesVar), + emit([",",nl, + "{",Dst,",",DstBuf,"}",nl, + "end"]), + ok. + +optimize_alignment(Imm) -> + opt_al(Imm, unknown). + +optimize_alignment(Imm, Al) -> + opt_al(Imm, Al). + + +per_dec_boolean() -> + {map,{get_bits,1,[1]},[{0,false},{1,true}]}. + +per_dec_enumerated(NamedList0, Aligned) -> + Constraint = [{'ValueRange',{0,length(NamedList0)-1}}], + NamedList = per_dec_enumerated_fix_list(NamedList0, [enum_error], 0), + Int = per_dec_integer(Constraint, Aligned), + {map,Int,NamedList}. + +per_dec_enumerated(BaseNamedList, NamedListExt0, Aligned) -> + Base = per_dec_enumerated(BaseNamedList, Aligned), + NamedListExt = per_dec_enumerated_fix_list(NamedListExt0, + [enum_default], 0), + Ext = {map,per_dec_normally_small_number(Aligned),NamedListExt}, + bit_case(Base, Ext). + +per_dec_extension_map(Aligned) -> + Len = {add,per_dec_normally_small_number(Aligned),1}, + {get_bits,Len,[1,bitstring]}. + +per_dec_integer(Constraint0, Aligned) -> + Constraint = effective_constraint(integer, Constraint0), + per_dec_integer_1(Constraint, Aligned). + +per_dec_length(SingleValue, _, _Aligned) when is_integer(SingleValue) -> + {value,SingleValue}; +per_dec_length({S,S}, _, _Aligned) when is_integer(S) -> + {value,S}; +per_dec_length({{_,_}=Constr,_}, AllowZero, Aligned) -> + bit_case(per_dec_length(Constr, AllowZero, Aligned), + per_dec_length(undefined, AllowZero, Aligned)); +per_dec_length({Lb,Ub}, _AllowZero, Aligned) when is_integer(Lb), + is_integer(Lb), + Ub =< 65535 -> + per_dec_constrained(Lb, Ub, Aligned); +per_dec_length({_,_}, AllowZero, Aligned) -> + decode_unconstrained_length(AllowZero, Aligned); +per_dec_length(undefined, AllowZero, Aligned) -> + decode_unconstrained_length(AllowZero, Aligned). + +per_dec_named_integer(Constraint, NamedList0, Aligned) -> + Int = per_dec_integer(Constraint, Aligned), + NamedList = [{K,V} || {V,K} <- NamedList0] ++ [integer_default], + {map,Int,NamedList}. + +per_dec_octet_string(Constraint, Aligned) -> + dec_string(Constraint, 8, Aligned). + +per_dec_open_type(Aligned) -> + {get_bits,decode_unconstrained_length(true, Aligned), + [8,binary,{align,Aligned}]}. + + +%%% +%%% Local functions. +%%% + +dec_string(Sv, U, _Aligned) when is_integer(Sv), U*Sv =< 16 -> + {get_bits,Sv,[U,binary]}; +dec_string(Sv, U, Aligned) when is_integer(Sv), Sv < 16#10000 -> + {get_bits,Sv,[U,binary,{align,Aligned}]}; +dec_string(C, U, Aligned) when is_list(C) -> + dec_string({hd(C),lists:max(C)}, U, Aligned); +dec_string({Sv,Sv}, U, Aligned) -> + dec_string(Sv, U, Aligned); +dec_string({{_,_}=C,_}, U, Aligned) -> + bit_case(dec_string(C, U, Aligned), + dec_string(no, U, Aligned)); +dec_string({Lb,Ub}, U, Aligned) when Ub < 16#10000 -> + Len = per_dec_constrained(Lb, Ub, Aligned), + {get_bits,Len,[U,binary,{align,Aligned}]}; +dec_string(_, U, Aligned) -> + Al = [{align,Aligned}], + DecRest = fun(V, Buf) -> + emit(["?RT_PER:decode_fragmented(",V,", ", + Buf,", ",U,")"]) + end, + {'case',[{test,{get_bits,1,[1|Al]},0, + {value,{get_bits, + {get_bits,7,[1]}, + [U,binary]}}}, + {test,{get_bits,1,[1|Al]},1, + {test,{get_bits,1,[1]},0, + {value,{get_bits, + {get_bits,14,[1]}, + [U,binary]}}}}, + {test,{get_bits,1,[1|Al]},1, + {test,{get_bits,1,[1]},1, + {value,{call,DecRest,{get_bits,6,[1]}}}}}]}. + +per_dec_enumerated_fix_list([{V,_}|T], Tail, N) -> + [{N,V}|per_dec_enumerated_fix_list(T, Tail, N+1)]; +per_dec_enumerated_fix_list([], Tail, _) -> Tail. + +per_dec_integer_1([{'SingleValue',Value}], _Aligned) -> + {value,Value}; +per_dec_integer_1([{'ValueRange',{Lb,'MAX'}}], Aligned) when is_integer(Lb) -> + per_dec_unconstrained(Aligned); +per_dec_integer_1([{'ValueRange',{Lb,Ub}}], Aligned) when is_integer(Lb), + is_integer(Ub) -> + per_dec_constrained(Lb, Ub, Aligned); +per_dec_integer_1([{{_,_}=Constr0,_}], Aligned) -> + Constr = effective_constraint(integer, [Constr0]), + bit_case(per_dec_integer(Constr, Aligned), + per_dec_unconstrained(Aligned)); +per_dec_integer_1([], Aligned) -> + per_dec_unconstrained(Aligned). + +per_dec_unconstrained(Aligned) -> + {get_bits,decode_unconstrained_length(false, Aligned),[8,signed]}. + +per_dec_constrained(Lb, Ub, false) -> + Range = Ub - Lb + 1, + Get = {get_bits,uper_num_bits(Range),[1]}, + add_lb(Lb, Get); +per_dec_constrained(Lb, Ub, true) -> + Range = Ub - Lb + 1, + Get = if + Range =< 255 -> + {get_bits,per_num_bits(Range),[1,unsigned]}; + Range == 256 -> + {get_bits,1,[8,unsigned,{align,true}]}; + Range =< 65536 -> + {get_bits,2,[8,unsigned,{align,true}]}; + true -> + RangeOctLen = byte_size(binary:encode_unsigned(Range - 1)), + {get_bits,per_dec_length({1,RangeOctLen}, false, true), + [8,unsigned,{align,true}]} + end, + add_lb(Lb, Get). + +add_lb(0, Get) -> Get; +add_lb(Lb, Get) -> {add,Get,Lb}. + +per_dec_normally_small_number(Aligned) -> + Small = {get_bits,6,[1]}, + Unlimited = per_decode_semi_constrained(0, Aligned), + bit_case(Small, Unlimited). + +per_decode_semi_constrained(Lb, Aligned) -> + add_lb(Lb, {get_bits,decode_unconstrained_length(false, Aligned),[8]}). + +bit_case(Base, Ext) -> + {'case',[{test,{get_bits,1,[1]},0,Base}, + {test,{get_bits,1,[1]},1,Ext}]}. + +decode_unconstrained_length(AllowZero, Aligned) -> + Al = [{align,Aligned}], + Zero = case AllowZero of + false -> [non_zero]; + true -> [] + end, + {'case',[{test,{get_bits,1,[1|Al]},0, + {value,{get_bits,7,[1|Zero]}}}, + {test,{get_bits,1,[1|Al]},1, + {test,{get_bits,1,[1]},0, + {value,{get_bits,14,[1|Zero]}}}}]}. + +uper_num_bits(N) -> + uper_num_bits(N, 1, 0). + +uper_num_bits(N, T, B) when N =< T -> B; +uper_num_bits(N, T, B) -> uper_num_bits(N, T bsl 1, B+1). + +per_num_bits(2) -> 1; +per_num_bits(N) when N =< 4 -> 2; +per_num_bits(N) when N =< 8 -> 3; +per_num_bits(N) when N =< 16 -> 4; +per_num_bits(N) when N =< 32 -> 5; +per_num_bits(N) when N =< 64 -> 6; +per_num_bits(N) when N =< 128 -> 7; +per_num_bits(N) when N =< 255 -> 8. + +%%% +%%% Remove unnecessary aligning to octet boundaries. +%%% + +opt_al({get_bits,E0,Opts0}, A0) -> + {E,A1} = opt_al(E0, A0), + Opts = opt_al_1(A1, Opts0), + A = update_al(A1, E, Opts), + {{get_bits,E,Opts},A}; +opt_al({call,Fun,E0}, A0) -> + {E,A} = opt_al(E0, A0), + {{call,Fun,E},A}; +opt_al({convert,Op,E0}, A0) -> + {E,A} = opt_al(E0, A0), + {{convert,Op,E},A}; +opt_al({value,E0}, A0) -> + {E,A} = opt_al(E0, A0), + {{value,E},A}; +opt_al({add,E0,I}, A0) when is_integer(I) -> + {E,A} = opt_al(E0, A0), + {{add,E,I},A}; +opt_al({test,E0,V,B0}, A0) -> + {E,A1} = opt_al(E0, A0), + {B,A2} = opt_al(B0, A1), + {{test,E,V,B},A2}; +opt_al({'case',Cs0}, A0) -> + {Cs,A} = opt_al_cs(Cs0, A0), + {{'case',Cs},A}; +opt_al({map,E0,Cs}, A0) -> + {E,A} = opt_al(E0, A0), + {{map,E,Cs},A}; +opt_al(I, A) when is_integer(I) -> + {I,A}. + +opt_al_cs([C0|Cs0], A0) -> + {C,A1} = opt_al(C0, A0), + {Cs,A2} = opt_al_cs(Cs0, A0), + {[C|Cs],merge_al(A1, A2)}; +opt_al_cs([], _) -> {[],none}. + +merge_al(unknown, _) -> unknown; +merge_al(Other, none) -> Other; +merge_al(_, unknown) -> unknown; +merge_al(I0, I1) -> + case {I0 rem 8,I1 rem 8} of + {I,I} -> I; + {_,_} -> unknown + end. + +opt_al_1(unknown, Opts) -> + Opts; +opt_al_1(A, Opts0) -> + case alignment(Opts0) of + none -> + Opts0; + full -> + case A rem 8 of + 0 -> + %% Already in alignment. + proplists:delete(align, Opts0); + Bits -> + %% Cheaper alignment with a constant padding. + Opts1 = proplists:delete(align, Opts0), + [{align,8-Bits }|Opts1] + end; + A -> %Assertion. + Opts0 + end. + +update_al(A0, E, Opts) -> + A = case alignment(Opts) of + none -> A0; + full -> 0; + Bits when is_integer(A0) -> + 0 = (A0 + Bits) rem 8; %Assertion. + _ -> + 0 + end, + [U] = [U || U <- Opts, is_integer(U)], + if + U rem 8 =:= 0 -> A; + is_integer(A), is_integer(E) -> A + U*E; + true -> unknown + end. + +%%% +%%% Flatten the intermediate format and assign temporaries. +%%% + +flatten({get_bits,I,U}, Buf0, St0) when is_integer(I) -> + {Dst,St} = new_var_pair(St0), + Gb = {get_bits,{I,Buf0},U,Dst}, + flatten_align(Gb, [], St); +flatten({get_bits,E0,U}, Buf0, St0) -> + {E,Pre,St1} = flatten(E0, Buf0, St0), + {Dst,St2} = new_var_pair(St1), + Gb = {get_bits,E,U,Dst}, + flatten_align(Gb, Pre, St2); +flatten({test,{get_bits,I,U},V,E0}, Buf0, St0) when is_integer(I) -> + {DstBuf0,St1} = new_var("Buf", St0), + Gb = {get_bits,{I,Buf0},U,{V,DstBuf0}}, + {{_Dst,DstBuf},Pre0,St2} = flatten_align(Gb, [], St1), + {E,Pre1,St3} = flatten(E0, DstBuf, St2), + {E,Pre0++Pre1,St3}; +flatten({add,E0,I}, Buf0, St0) -> + {{Src,Buf},Pre,St1} = flatten(E0, Buf0, St0), + {Dst,St} = new_var("Add", St1), + {{Dst,Buf},Pre++[{add,Src,I,Dst}],St}; +flatten({'case',Cs0}, Buf0, St0) -> + {Dst,St1} = new_var_pair(St0), + {Cs1,St} = flatten_cs(Cs0, Buf0, St1), + {Al,Cs2} = flatten_hoist_align(Cs1), + {Dst,Al++[{'case',Buf0,Cs2,Dst}],St}; +flatten({map,E0,Cs0}, Buf0, St0) -> + {{E,DstBuf},Pre,St1} = flatten(E0, Buf0, St0), + {Dst,St2} = new_var("Int", St1), + Cs = flatten_map_cs(Cs0, E), + {{Dst,DstBuf},Pre++[{'map',E,Cs,{Dst,DstBuf}}],St2}; +flatten({value,V0}, Buf0, St0) when is_integer(V0) -> + {{V0,Buf0},[],St0}; +flatten({value,V0}, Buf0, St0) -> + flatten(V0, Buf0, St0); +flatten({convert,Op,E0}, Buf0, St0) -> + {{E,Buf},Pre,St1} = flatten(E0, Buf0, St0), + {Dst,St2} = new_var("Conv", St1), + {{Dst,Buf},Pre++[{convert,Op,E,Dst}],St2}; +flatten({call,Fun,E0}, Buf0, St0) -> + {Src,Pre,St1} = flatten(E0, Buf0, St0), + {Dst,St2} = new_var_pair(St1), + {Dst,Pre++[{call,Fun,Src,Dst}],St2}. + +flatten_cs([C0|Cs0], Buf, St0) -> + {C,Pre,St1} = flatten(C0, Buf, St0), + {Cs,St2} = flatten_cs(Cs0, Buf, St0), + St3 = St2#st{var=max(St1#st.var, St2#st.var)}, + {[Pre++[{return,C}]|Cs],St3}; +flatten_cs([], _, St) -> {[],St}. + +flatten_map_cs(Cs, Var) -> + flatten_map_cs_1(Cs, {Var,Cs}). + +flatten_map_cs_1([{K,V}|Cs], DefData) -> + [{{asis,K},{asis,V}}|flatten_map_cs_1(Cs, DefData)]; +flatten_map_cs_1([integer_default], {Int,_}) -> + [{'_',Int}]; +flatten_map_cs_1([enum_default], {Int,_}) -> + [{'_',["{asn1_enum,",Int,"}"]}]; +flatten_map_cs_1([enum_error], {Var,Cs}) -> + Vs = [V || {_,V} <- Cs], + [{'_',["exit({error,{asn1,{decode_enumerated,{",Var,",", + {asis,Vs},"}}}})"]}]; +flatten_map_cs_1([], _) -> []. + +flatten_hoist_align([[{align_bits,_,_}=Ab|T]|Cs]) -> + flatten_hoist_align_1(Cs, Ab, [T]); +flatten_hoist_align(Cs) -> {[],Cs}. + +flatten_hoist_align_1([[Ab|T]|Cs], Ab, Acc) -> + flatten_hoist_align_1(Cs, Ab, [T|Acc]); +flatten_hoist_align_1([], Ab, Acc) -> + {[Ab],lists:reverse(Acc)}. + +flatten_align({get_bits,{SrcBits,SrcBuf},U,Dst}=Gb0, Pre, St0) -> + case alignment(U) of + none -> + flatten_align_1(U, Dst, Pre++[Gb0], St0); + full -> + {PadBits,St1} = new_var("Pad", St0), + {DstBuf,St2} = new_var("Buf", St1), + Ab = {align_bits,SrcBuf,PadBits}, + Agb = {get_bits,{PadBits,SrcBuf},[1],{'_',DstBuf}}, + Gb = {get_bits,{SrcBits,DstBuf},U,Dst}, + flatten_align_1(U, Dst, Pre++[Ab,Agb,Gb], St2); + PadBits when is_integer(PadBits), PadBits > 0 -> + {DstBuf,St1} = new_var("Buf", St0), + Agb = {get_bits,{PadBits,SrcBuf},[1],{'_',DstBuf}}, + Gb = {get_bits,{SrcBits,DstBuf},U,Dst}, + flatten_align_1(U, Dst, Pre++[Agb,Gb], St1) + end. + +flatten_align_1(U, {D,_}=Dst, Pre, St) -> + case is_non_zero(U) of + false -> + {Dst,Pre,St}; + true -> + {Dst,Pre++[{non_zero,D}],St} + end. + +new_var_pair(St0) -> + {Var,St1} = new_var("V", St0), + {Buf,St2} = new_var("Buf", St1), + {{Var,Buf},St2}. + +new_var(Tag, #st{base=VarBase,var=N}=St) -> + {VarBase++Tag++integer_to_list(N),St#st{var=N+1}}. + +alignment([{align,false}|_]) -> none; +alignment([{align,true}|_]) -> full; +alignment([{align,Bits}|_]) -> Bits; +alignment([_|T]) -> alignment(T); +alignment([]) -> none. + +is_non_zero(Fl) -> + lists:member(non_zero, Fl). + +%%% +%%% Generate Erlang code from the flattened intermediate format. +%%% + +dcg_list_outside([{align_bits,Buf,SzVar}|T]) -> + emit([SzVar," = bit_size(",Buf,") band 7"]), + iter_dcg_list_outside(T); +dcg_list_outside([{'case',Buf,Cs,Dst}|T]) -> + dcg_case(Buf, Cs, Dst), + iter_dcg_list_outside(T); +dcg_list_outside([{'map',Val,Cs,Dst}|T]) -> + dcg_map(Val, Cs, Dst), + iter_dcg_list_outside(T); +dcg_list_outside([{add,S1,S2,Dst}|T]) -> + emit([Dst," = ",S1," + ",S2]), + iter_dcg_list_outside(T); +dcg_list_outside([{return,{V,Buf}}|T]) -> + emit(["{",V,",",Buf,"}"]), + iter_dcg_list_outside(T); +dcg_list_outside([{call,Fun,{V,Buf},{Dst,DstBuf}}|T]) -> + emit(["{",Dst,",",DstBuf,"} = "]), + Fun(V, Buf), + iter_dcg_list_outside(T); +dcg_list_outside([{convert,Op,V,Dst}|T]) -> + emit([Dst," = ",Op,"(",V,")"]), + iter_dcg_list_outside(T); +dcg_list_outside([{get_bits,{_,Buf0},_,_}|_]=L0) -> + emit("<<"), + {L,Buf} = dcg_list_inside(L0, buf), + emit([Buf,"/bitstring>> = ",Buf0]), + iter_dcg_list_outside(L); +dcg_list_outside([]) -> + emit("ignore"), + ok. + +iter_dcg_list_outside([_|_]=T) -> + emit([",",nl]), + dcg_list_outside(T); +iter_dcg_list_outside([]) -> ok. + +dcg_case(Buf, Cs, {Dst,DstBuf}) -> + emit(["{",Dst,",",DstBuf,"} = case ",Buf," of",nl]), + dcg_case_cs(Cs), + emit("end"). + +dcg_case_cs([C|Cs]) -> + emit("<<"), + {T0,DstBuf} = dcg_list_inside(C, buf), + emit([DstBuf,"/bitstring>>"]), + T1 = dcg_guard(T0), + dcg_list_outside(T1), + case Cs of + [] -> emit([nl]); + [_|_] -> emit([";",nl]) + end, + dcg_case_cs(Cs); +dcg_case_cs([]) -> ok. + +dcg_guard([{non_zero,Src}|T]) -> + emit([" when ",Src," =/= 0 ->",nl]), + T; +dcg_guard(T) -> + emit([" ->",nl]), + T. + +dcg_map(Val, Cs, {Dst,_}) -> + emit([Dst," = case ",Val," of",nl]), + dcg_map_cs(Cs), + emit("end"). + +dcg_map_cs([{K,V}]) -> + emit([K," -> ",V,nl]); +dcg_map_cs([{K,V}|Cs]) -> + emit([K," -> ",V,";",nl]), + dcg_map_cs(Cs). + +dcg_list_inside([{get_bits,{Sz,_},Fl0,{Dst,DstBuf}}|T], _) -> + Fl = bit_flags(Fl0, []), + emit([mk_dest(Dst),":",Sz,Fl,","]), + dcg_list_inside(T, DstBuf); +dcg_list_inside(L, Dst) -> {L,Dst}. + +bit_flags([1|T], Acc) -> + bit_flags(T, Acc); +bit_flags([{align,_}|T], Acc) -> + bit_flags(T, Acc); +bit_flags([non_zero|T], Acc) -> + bit_flags(T, Acc); +bit_flags([U|T], Acc) when is_integer(U) -> + bit_flags(T, ["unit:"++integer_to_list(U)|Acc]); +bit_flags([H|T], Acc) -> + bit_flags(T, [atom_to_list(H)|Acc]); +bit_flags([], []) -> + ""; +bit_flags([], Acc) -> + "/" ++ bit_flags_1(Acc, ""). + +bit_flags_1([H|T], Sep) -> + Sep ++ H ++ bit_flags_1(T, "-"); +bit_flags_1([], _) -> []. + +mk_dest(I) when is_integer(I) -> + integer_to_list(I); +mk_dest(S) -> S. + +%% effective_constraint(Type,C) +%% Type = atom() +%% C = [C1,...] +%% C1 = {'SingleValue',SV} | {'ValueRange',VR} | {atom(),term()} +%% SV = integer() | [integer(),...] +%% VR = {Lb,Ub} +%% Lb = 'MIN' | integer() +%% Ub = 'MAX' | integer() +%% Returns a single value if C only has a single value constraint, and no +%% value range constraints, that constrains to a single value, otherwise +%% returns a value range that has the lower bound set to the lowest value +%% of all single values and lower bound values in C and the upper bound to +%% the greatest value. +effective_constraint(integer,[C={{_,_},_}|_Rest]) -> % extension + [C]; +effective_constraint(integer, C) -> + SVs = get_constraints(C, 'SingleValue'), + SV = effective_constr('SingleValue', SVs), + VRs = get_constraints(C, 'ValueRange'), + VR = effective_constr('ValueRange', VRs), + greatest_common_range(SV, VR); +effective_constraint(bitstring, C) -> + get_constraint(C, 'SizeConstraint'). + +effective_constr(_, []) -> []; +effective_constr('SingleValue', List) -> + SVList = lists:flatten(lists:map(fun(X) -> element(2, X) end, List)), + %% Sort and remove duplicates before generating SingleValue or ValueRange + %% In case of ValueRange, also check for 'MIN and 'MAX' + case lists:usort(SVList) of + [N] -> + [{'SingleValue',N}]; + [_|_]=L -> + [{'ValueRange',{least_Lb(L),greatest_Ub(L)}}] + end; +effective_constr('ValueRange', List) -> + LBs = lists:map(fun({_,{Lb,_}}) -> Lb end, List), + UBs = lists:map(fun({_,{_,Ub}}) -> Ub end, List), + Lb = least_Lb(LBs), + [{'ValueRange',{Lb,lists:max(UBs)}}]. + +greatest_common_range([], VR) -> + VR; +greatest_common_range(SV, []) -> + SV; +greatest_common_range([{_,Int}], [{_,{'MIN',Ub}}]) + when is_integer(Int), Int > Ub -> + [{'ValueRange',{'MIN',Int}}]; +greatest_common_range([{_,Int}],[{_,{Lb,Ub}}]) + when is_integer(Int), Int < Lb -> + [{'ValueRange',{Int,Ub}}]; +greatest_common_range([{_,Int}],VR=[{_,{_Lb,_Ub}}]) when is_integer(Int) -> + VR; +greatest_common_range([{_,L}],[{_,{Lb,Ub}}]) when is_list(L) -> + Min = least_Lb([Lb|L]), + Max = greatest_Ub([Ub|L]), + [{'ValueRange',{Min,Max}}]; +greatest_common_range([{_,{Lb1,Ub1}}], [{_,{Lb2,Ub2}}]) -> + Min = least_Lb([Lb1,Lb2]), + Max = greatest_Ub([Ub1,Ub2]), + [{'ValueRange',{Min,Max}}]. + + +least_Lb(L) -> + case lists:member('MIN', L) of + true -> 'MIN'; + false -> lists:min(L) + end. + +greatest_Ub(L) -> + case lists:member('MAX', L) of + true -> 'MAX'; + false -> lists:max(L) + end. + +get_constraint(C, Key) -> + case lists:keyfind(Key, 1, C) of + false -> no; + {_,V} -> V + end. + +get_constraints([{Key,_}=Pair|T], Key) -> + [Pair|get_constraints(T, Key)]; +get_constraints([_|T], Key) -> + get_constraints(T, Key); +get_constraints([], _) -> []. diff --git a/lib/asn1/src/asn1ct_value.erl b/lib/asn1/src/asn1ct_value.erl index 6057e27b63..389642c446 100644 --- a/lib/asn1/src/asn1ct_value.erl +++ b/lib/asn1/src/asn1ct_value.erl @@ -436,11 +436,8 @@ get_encoding_rule(M) -> open_type_value(ber) -> <<4,9,111,112,101,110,95,116,121,112,101>>; -open_type_value(per) -> - <<"\n\topen_type">>; %octet string value "open_type" -% <<10,9,111,112,101,110,95,116,121,112,101>>; open_type_value(_) -> - [4,9,111,112,101,110,95,116,121,112,101]. + <<"\n\topen_type">>. %octet string value "open_type" to_textual_order({Root,Ext}) -> {to_textual_order(Root),Ext}; diff --git a/lib/asn1/src/asn1rt_per_bin_rt2ct.erl b/lib/asn1/src/asn1rt_per_bin_rt2ct.erl index 01e1cb23d7..5997232f13 100644 --- a/lib/asn1/src/asn1rt_per_bin_rt2ct.erl +++ b/lib/asn1/src/asn1rt_per_bin_rt2ct.erl @@ -22,25 +22,21 @@ -include("asn1_records.hrl"). --export([dec_fixup/3]). +-export([decode_fragmented/3]). -export([setchoiceext/1, setext/1, fixoptionals/3, fixextensions/2, - getext/1, getextension/2, skipextensions/3, getbit/1, getchoice/3 ]). --export([getoptionals/2, getoptionals2/2, - set_choice/3, encode_integer/2, encode_integer/3 ]). --export([decode_integer/2, decode_integer/3, encode_small_number/1, - decode_boolean/1, encode_length/2, decode_length/1, decode_length/2, - encode_small_length/1, decode_small_length/1, + skipextensions/3, getbit/1, getchoice/3 ]). +-export([set_choice/3, encode_integer/2, encode_integer/3 ]). +-export([encode_small_number/1, + encode_length/2, + encode_small_length/1, decode_compact_bit_string/3]). --export([decode_enumerated/3, - encode_bit_string/3, decode_bit_string/3 ]). --export([encode_octet_string/2, decode_octet_string/2, - encode_null/1, decode_null/1, +-export([encode_bit_string/3, decode_bit_string/3 ]). +-export([encode_octet_string/2, encode_object_identifier/1, decode_object_identifier/1, encode_real/1, decode_real/1, encode_relative_oid/1, decode_relative_oid/1, complete/1]). - -export([encode_open_type/2, decode_open_type/2]). -export([encode_GeneralString/2, decode_GeneralString/2, @@ -51,19 +47,10 @@ encode_UTF8String/1,decode_UTF8String/1 ]). --export([decode_constrained_number/2, - decode_constrained_number/3, - decode_unconstrained_number/1, - decode_semi_constrained_number/2, - encode_unconstrained_number/1, - decode_constrained_number/4, +-export([encode_unconstrained_number/1, encode_octet_string/3, - decode_octet_string/3, encode_known_multiplier_string/5, - decode_known_multiplier_string/5, - getoctets/2, getbits/2 -% start_drv/1,start_drv2/1,init_drv/1 - ]). + decode_known_multiplier_string/5]). -export([eint_positive/1]). @@ -73,20 +60,6 @@ -define('32K',32768). -define('64K',65536). -%%-define(nodriver,true). - -dec_fixup(Terms,Cnames,RemBytes) -> - dec_fixup(Terms,Cnames,RemBytes,[]). - -dec_fixup([novalue|T],[_Hc|Tc],RemBytes,Acc) -> - dec_fixup(T,Tc,RemBytes,Acc); -dec_fixup([{_Name,novalue}|T],[_Hc|Tc],RemBytes,Acc) -> - dec_fixup(T,Tc,RemBytes,Acc); -dec_fixup([H|T],[Hc|Tc],RemBytes,Acc) -> - dec_fixup(T,Tc,RemBytes,[{Hc,H}|Acc]); -dec_fixup([],_Cnames,RemBytes,Acc) -> - {lists:reverse(Acc),RemBytes}. - %%-------------------------------------------------------- %% setchoiceext(InRootSet) -> [{bit,X}] %% X is set to 1 when InRootSet==false @@ -131,15 +104,6 @@ fixoptionals([Pos|Ot],Val,Acc) -> end. -getext(Bytes) when is_bitstring(Bytes) -> - getbit(Bytes). - -getextension(0, Bytes) -> - {<<>>,Bytes}; -getextension(1, Bytes) -> - {Len,Bytes2} = decode_small_length(Bytes), - getbits_as_binary(Len,Bytes2).% {Bin,Bytes3}. - fixextensions({ext,ExtPos,ExtNum},Val) -> case fixextensions(ExtPos,ExtNum+ExtPos,Val,0) of 0 -> []; @@ -182,14 +146,6 @@ getchoice(Bytes,_,1) -> getchoice(Bytes,NumChoices,0) -> decode_constrained_number(Bytes,{0,NumChoices-1}). -%% old version kept for backward compatibility with generates from R7B01 -getoptionals(Bytes,NumOpt) -> - getbits_as_binary(NumOpt,Bytes). - -%% new version used in generates from r8b_patch/3 and later -getoptionals2(Bytes,NumOpt) -> - {_,_} = getbits(Bytes,NumOpt). - %% getbits_as_binary(Num,Bytes) -> {Bin,Rest} %% Num = integer(), @@ -332,32 +288,6 @@ decode_fragmented_bits(<<0:1,Len:7,Bin/binary>>,C,Acc) -> exit({error,{asn1,{illegal_value,C,BinBits}}}) end. - -decode_fragmented_octets(Bin,C) -> - decode_fragmented_octets(Bin,C,[]). - -decode_fragmented_octets(<<3:2,Len:6,Bin/binary>>,C,Acc) -> - {Value,Bin2} = split_binary(Bin,Len * ?'16K'), - decode_fragmented_octets(Bin2,C,[Value|Acc]); -decode_fragmented_octets(<<0:1,0:7,Bin/binary>>,C,Acc) -> - Octets = list_to_binary(lists:reverse(Acc)), - case C of - Int when is_integer(Int), C == size(Octets) -> - {Octets,Bin}; - Int when is_integer(Int) -> - exit({error,{asn1,{illegal_value,C,Octets}}}) - end; -decode_fragmented_octets(<<0:1,Len:7,Bin/binary>>,C,Acc) -> - <<Value:Len/binary-unit:8,Bin2/binary>> = Bin, - BinOctets = list_to_binary(lists:reverse([Value|Acc])), - case C of - Int when is_integer(Int),size(BinOctets) == Int -> - {BinOctets,Bin2}; - Int when is_integer(Int) -> - exit({error,{asn1,{illegal_value,C,BinOctets}}}) - end. - - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% encode_open_type(Constraint, Value) -> CompleteList @@ -442,40 +372,6 @@ encode_integer(_,Val) -> exit({error,{asn1,{illegal_value,Val}}}). - -decode_integer(Buffer,Range,NamedNumberList) -> - {Val,Buffer2} = decode_integer(Buffer,Range), - case lists:keysearch(Val,2,NamedNumberList) of - {value,{NewVal,_}} -> {NewVal,Buffer2}; - _ -> {Val,Buffer2} - end. - -decode_integer(Buffer,[{Rc,_Ec}]) when is_tuple(Rc) -> - {Ext,Buffer2} = getext(Buffer), - case Ext of - 0 -> decode_integer(Buffer2,[Rc]); - 1 -> decode_unconstrained_number(Buffer2) - end; -decode_integer(Buffer,undefined) -> - decode_unconstrained_number(Buffer); -decode_integer(Buffer,C) -> - case get_constraint(C,'SingleValue') of - V when is_integer(V) -> - {V,Buffer}; - _ -> - decode_integer1(Buffer,C) - end. - -decode_integer1(Buffer,C) -> - case VR = get_constraint(C,'ValueRange') of - no -> - decode_unconstrained_number(Buffer); - {Lb, 'MAX'} -> - decode_semi_constrained_number(Buffer,Lb); - {_Lb,_Ub} -> - decode_constrained_number(Buffer,VR) - 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 @@ -495,7 +391,7 @@ decode_small_number(Bytes) -> 0 -> getbits(Bytes2,6); 1 -> - decode_semi_constrained_number(Bytes2,0) + decode_semi_constrained_number(Bytes2) end. %% X.691:10.7 Encoding of a semi-constrained whole number @@ -518,12 +414,10 @@ encode_semi_constrained_number(Lb,Val) -> [encode_length(undefined,Len),[21,<<Len:16>>,Oct]] end. -decode_semi_constrained_number(Bytes,{Lb,_}) -> - decode_semi_constrained_number(Bytes,Lb); -decode_semi_constrained_number(Bytes,Lb) -> +decode_semi_constrained_number(Bytes) -> {Len,Bytes2} = decode_length(Bytes,undefined), {V,Bytes3} = getoctets(Bytes2,Len), - {V+Lb,Bytes3}. + {V,Bytes3}. encode_constrained_number({Lb,_Ub},_Range,{bits,N},Val) -> Val2 = Val-Lb, @@ -609,13 +503,6 @@ decode_constrained_number(Buffer,VR={Lb,Ub}) -> Range = Ub - Lb + 1, decode_constrained_number(Buffer,VR,Range). -decode_constrained_number(Buffer,{Lb,_Ub},_Range,{bits,N}) -> - {Val,Remain} = getbits(Buffer,N), - {Val+Lb,Remain}; -decode_constrained_number(Buffer,{Lb,_Ub},_Range,{octets,N}) -> - {Val,Remain} = getoctets(Buffer,N), - {Val+Lb,Remain}. - decode_constrained_number(Buffer,{Lb,_Ub},Range) -> % Val2 = Val - Lb, {Val,Remain} = @@ -716,23 +603,6 @@ enint(-1, [B1|T]) when B1 > 127 -> enint(N, Acc) -> enint(N bsr 8, [N band 16#ff|Acc]). -decode_unconstrained_number(Bytes) -> - {Len,Bytes2} = decode_length(Bytes,undefined), - {Ints,Bytes3} = getoctets_as_bin(Bytes2,Len), - {dec_integer(Ints),Bytes3}. - -dec_integer(Bin = <<0:1,_:7,_/binary>>) -> - decpint(Bin); -dec_integer(<<_:1,B:7,BitStr/bitstring>>) -> - Size = bit_size(BitStr), - <<I:Size>> = BitStr, - (-128 + B) bsl bit_size(BitStr) bor I. - -decpint(Bin) -> - Size = bit_size(Bin), - <<Int:Size>> = Bin, - Int. - %% X.691:10.9 Encoding of a length determinant %%encode_small_length(undefined,Len) -> % null means no UpperBound %% encode_small_number(Len). @@ -777,18 +647,6 @@ encode_small_length(Len) -> [1,encode_length(undefined,Len)]. -decode_small_length(Buffer) -> - case getbit(Buffer) of - {0,Remain} -> - {Bits,Remain2} = getbits(Remain,6), - {Bits+1,Remain2}; - {1,Remain} -> - decode_length(Remain,undefined) - end. - -decode_length(Buffer) -> - decode_length(Buffer,undefined). - decode_length(Buffer,undefined) -> % un-constrained case align(Buffer) of <<0:1,Oct:7,Rest/binary>> -> @@ -831,38 +689,6 @@ decode_length(Buffer,SingleValue) when is_integer(SingleValue) -> {SingleValue,Buffer}. - % X.691:11 -decode_boolean(Buffer) -> %when record(Buffer,buffer) - case getbit(Buffer) of - {1,Remain} -> {true,Remain}; - {0,Remain} -> {false,Remain} - end. - - -%% ENUMERATED with extension marker -decode_enumerated(Buffer,C,{Ntup1,Ntup2}) when is_tuple(Ntup1), is_tuple(Ntup2) -> - {Ext,Buffer2} = getext(Buffer), - case Ext of - 0 -> % not an extension value - {Val,Buffer3} = decode_integer(Buffer2,C), - case catch (element(Val+1,Ntup1)) of - NewVal when is_atom(NewVal) -> {NewVal,Buffer3}; - _Error -> exit({error,{asn1,{decode_enumerated,{Val,[Ntup1,Ntup2]}}}}) - end; - 1 -> % this an extension value - {Val,Buffer3} = decode_small_number(Buffer2), - case catch (element(Val+1,Ntup2)) of - NewVal when is_atom(NewVal) -> {NewVal,Buffer3}; - _ -> {{asn1_enum,Val},Buffer3} - end - end; - -decode_enumerated(Buffer,C,NamedNumberTup) when is_tuple(NamedNumberTup) -> - {Val,Buffer2} = decode_integer(Buffer,C), - case catch (element(Val+1,NamedNumberTup)) of - NewVal when is_atom(NewVal) -> {NewVal,Buffer2}; - _Error -> exit({error,{asn1,{decode_enumerated,{Val,NamedNumberTup}}}}) - end. %%=============================================================================== %%=============================================================================== @@ -1313,49 +1139,74 @@ encode_octet_string(SZ={_,_},false,Val) -> % [encode_length(SZ,length(Val)),align, % {octets,Val}]; Len = length(Val), - [encode_length(SZ,Len),2, - octets_to_complete(Len,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), - [encode_length({hd(SZ),lists:max(SZ)},Len),2, - octets_to_complete(Len,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), - [encode_length(undefined,Len),2, - octets_to_complete(Len,Val)]; + try + [encode_length(undefined,Len),2, + octets_to_complete(Len,Val)] + catch + exit:{error,{asn1,{encode_length,_}}} -> + encode_fragmented_octet_string(Val) + end; encode_octet_string(C,_,_) -> exit({error,{not_implemented,C}}). - -decode_octet_string(Bytes,Range) -> - decode_octet_string(Bytes,Range,false). - -decode_octet_string(<<B1,Bytes/bitstring>>,1,false) -> -%% {B1,Bytes2} = getbits(Bytes,8), - {[B1],Bytes}; -decode_octet_string(<<B1,B2,Bytes/bitstring>>,2,false) -> -%% {Bs,Bytes2}= getbits(Bytes,16), -%% {binary_to_list(<<Bs:16>>),Bytes2}; - {[B1,B2],Bytes}; -decode_octet_string(Bytes,Sv,false) when is_integer(Sv),Sv=<65535 -> - %% Bytes2 = align(Bytes), - %% getoctets_as_list aligns buffer before it picks octets - getoctets_as_list(Bytes,Sv); -decode_octet_string(Bytes,Sv,false) when is_integer(Sv) -> - Bytes2 = align(Bytes), - decode_fragmented_octets(Bytes2,Sv); -decode_octet_string(Bytes,{Lb,Ub},false) -> - {Len,Bytes2} = decode_length(Bytes,{Lb,Ub}), -%% Bytes3 = align(Bytes2), - getoctets_as_list(Bytes2,Len); -decode_octet_string(Bytes,Sv,false) when is_list(Sv) -> - {Len,Bytes2} = decode_length(Bytes,{hd(Sv),lists:max(Sv)}), -%% Bytes3 = align(Bytes2), - getoctets_as_list(Bytes2,Len); -decode_octet_string(Bytes,no,false) -> - {Len,Bytes2} = decode_length(Bytes,undefined), -%% Bytes3 = align(Bytes2), - getoctets_as_list(Bytes2,Len). +encode_fragmented_octet_string(Val) -> + Bin = iolist_to_binary(Val), + efos_1(Bin). + +efos_1(<<B1:16#C000/binary,B2:16#4000/binary,T/binary>>) -> + [20,1,<<3:2,4:6>>, + octets_to_complete(16#C000, B1), + octets_to_complete(16#4000, B2)|efos_1(T)]; +efos_1(<<B:16#C000/binary,T/binary>>) -> + [20,1,<<3:2,3:6>>,octets_to_complete(16#C000, B)|efos_1(T)]; +efos_1(<<B:16#8000/binary,T/binary>>) -> + [20,1,<<3:2,2:6>>,octets_to_complete(16#8000, B)|efos_1(T)]; +efos_1(<<B:16#4000/binary,T/binary>>) -> + [20,1,<<3:2,1:6>>,octets_to_complete(16#4000, B)|efos_1(T)]; +efos_1(<<>>) -> + [20,1,0]; +efos_1(<<B/bitstring>>) -> + Len = byte_size(B), + [encode_length(undefined, Len),octets_to_complete(Len, B)]. + +decode_fragmented(SegSz0, Buf0, Unit) -> + SegSz = SegSz0 * Unit * ?'16K', + <<Res:SegSz/bitstring,Buf/bitstring>> = Buf0, + decode_fragmented_1(Buf, Unit, Res). + +decode_fragmented_1(<<0:1,N:7,Buf0/bitstring>>, Unit, Res) -> + Sz = N*Unit, + <<S:Sz/bitstring,Buf/bitstring>> = Buf0, + {<<Res/bitstring,S/bitstring>>,Buf}; +decode_fragmented_1(<<1:1,0:1,N:14,Buf0/bitstring>>, Unit, Res) -> + Sz = N*Unit, + <<S:Sz/bitstring,Buf/bitstring>> = Buf0, + {<<Res/bitstring,S/bitstring>>,Buf}; +decode_fragmented_1(<<1:1,1:1,SegSz0:6,Buf0/bitstring>>, Unit, Res0) -> + SegSz = SegSz0 * Unit * ?'16K', + <<Frag:SegSz/bitstring,Buf/bitstring>> = Buf0, + Res = <<Res0/bitstring,Frag/bitstring>>, + decode_fragmented_1(Buf, Unit, Res). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -1543,16 +1394,6 @@ chars_decode2(Bytes,{Min,Max,CharInTab},NumBits,Len,Acc) -> chars_decode2(Bytes2,{Min,Max,CharInTab},NumBits,Len -1,[element(Char+1,CharInTab)|Acc]). - % X.691:17 -encode_null(_Val) -> []. % encodes to nothing -%encode_null({Name,Val}) when is_atom(Name) -> -% encode_null(Val). - -decode_null(Bytes) -> - {'NULL',Bytes}. - - - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% encode_UTF8String(Val) -> CompleteList %% Val -> <<utf8encoded binary>> diff --git a/lib/asn1/src/asn1rt_uper_bin.erl b/lib/asn1/src/asn1rt_uper_bin.erl index e1f96416a9..9410c3ef90 100644 --- a/lib/asn1/src/asn1rt_uper_bin.erl +++ b/lib/asn1/src/asn1rt_uper_bin.erl @@ -25,21 +25,20 @@ %%-compile(export_all). - -export([setext/1, fixoptionals/3, +-export([decode_fragmented/3]). +-export([setext/1, fixoptionals/3, fixextensions/2, - getext/1, getextension/2, skipextensions/3, getbit/1, getchoice/3 ]). - -export([getoptionals2/2, set_choice/3, encode_integer/2, encode_integer/3 ]). - -export([decode_integer/2, decode_integer/3, encode_small_number/1, encode_boolean/1, - decode_boolean/1, encode_length/2, decode_length/1, decode_length/2, - encode_small_length/1, decode_small_length/1, + skipextensions/3, getbit/1, getchoice/3 ]). +-export([set_choice/3, encode_integer/2, encode_integer/3]). +-export([encode_small_number/1, encode_boolean/1, + encode_length/2, + encode_small_length/1, decode_compact_bit_string/3]). - -export([decode_enumerated/3, - encode_bit_string/3, decode_bit_string/3 ]). - -export([encode_octet_string/2, decode_octet_string/2, - encode_null/1, decode_null/1, - encode_relative_oid/1, decode_relative_oid/1, +-export([encode_bit_string/3, decode_bit_string/3 ]). +-export([encode_octet_string/2, + encode_relative_oid/1, decode_relative_oid/1, encode_object_identifier/1, decode_object_identifier/1, - encode_real/1, decode_real/1, + encode_real/1, decode_real/1, complete/1, complete_NFP/1]). @@ -99,16 +98,6 @@ fixoptionals([Pos|Ot],Val,Acc) -> end. -getext(Bytes) when is_bitstring(Bytes) -> - getbit(Bytes). - -getextension(0, Bytes) -> - {{},Bytes}; -getextension(1, Bytes) -> - {Len,Bytes2} = decode_small_length(Bytes), - {Blist, Bytes3} = getbits_as_list(Len,Bytes2), - {list_to_tuple(Blist),Bytes3}. - fixextensions({ext,ExtPos,ExtNum},Val) -> case fixextensions(ExtPos,ExtNum+ExtPos,Val,0) of 0 -> []; @@ -151,11 +140,6 @@ getchoice(Bytes,NumChoices,0) -> decode_constrained_number(Bytes,{0,NumChoices-1}). -%%%%%%%%%%%%%%% -getoptionals2(Bytes,NumOpt) -> - getbits(Bytes,NumOpt). - - %% getbits_as_binary(Num,Bytes) -> {{Unused,BinBits},RestBytes}, %% Num = integer(), %% Bytes = list() | tuple(), @@ -275,33 +259,6 @@ decode_fragmented_bits(<<0:1,Len:7,BitStr/bitstring>>,C,Acc) -> exit({error,{asn1,{illegal_value,C,ResBitStr}}}) end. - -decode_fragmented_octets({0,Bin},C) -> - decode_fragmented_octets(Bin,C,[]). - -decode_fragmented_octets(<<3:2,Len:6,BitStr/bitstring>>,C,Acc) -> - FragLen = Len * ?'16K', - <<Value:FragLen/binary,Rest/bitstring>> = BitStr, - decode_fragmented_octets(Rest,C,[Value|Acc]); -decode_fragmented_octets(<<0:1,0:7,Bin/bitstring>>,C,Acc) -> - Octets = list_to_binary(lists:reverse(Acc)), - case C of - Int when is_integer(Int), C == size(Octets) -> - {Octets,Bin}; - Int when is_integer(Int) -> - exit({error,{asn1,{illegal_value,C,Octets}}}) - end; -decode_fragmented_octets(<<0:1,Len:7,BitStr/bitstring>>,C,Acc) -> - <<Value:Len/binary-unit:8,BitStr2/binary>> = BitStr, - BinOctets = list_to_binary(lists:reverse([Value|Acc])), - case C of - Int when is_integer(Int),size(BinOctets) == Int -> - {BinOctets,BitStr2}; - Int when is_integer(Int) -> - exit({error,{asn1,{illegal_value,C,BinOctets}}}) - end. - - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% encode_open_type(Constraint, Value) -> CompleteList @@ -384,47 +341,6 @@ encode_integer1(C, Val) -> exit({error,{asn1,{illegal_value,VR,Val}}}) end. -decode_integer(Buffer,Range,NamedNumberList) -> - {Val,Buffer2} = decode_integer(Buffer,Range), - case lists:keysearch(Val,2,NamedNumberList) of - {value,{NewVal,_}} -> {NewVal,Buffer2}; - _ -> {Val,Buffer2} - end. - -decode_integer(Buffer,[{Rc,_Ec}]) when is_tuple(Rc) -> - {Ext,Buffer2} = getext(Buffer), - case Ext of - 0 -> decode_integer(Buffer2,[Rc]); %% Value in root of constraint - 1 -> decode_unconstrained_number(Buffer2) - end; -decode_integer(Buffer,undefined) -> - decode_unconstrained_number(Buffer); -decode_integer(Buffer,C) -> - case get_constraint(C,'SingleValue') of - V when is_integer(V) -> - {V,Buffer}; - V when is_list(V) -> - {Val,Buffer2} = decode_integer1(Buffer,C), - case lists:member(Val,V) of - true -> - {Val,Buffer2}; - _ -> - exit({error,{asn1,{illegal_value,Val}}}) - end; - _ -> - decode_integer1(Buffer,C) - end. - -decode_integer1(Buffer,C) -> - case VR = get_constraint(C,'ValueRange') of - no -> - decode_unconstrained_number(Buffer); - {Lb, 'MAX'} -> - decode_semi_constrained_number(Buffer,Lb); - {_,_} -> - decode_constrained_number(Buffer,VR) - 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 @@ -441,7 +357,7 @@ decode_small_number(Bytes) -> 0 -> getbits(Bytes2,6); 1 -> - decode_semi_constrained_number(Bytes2,0) + decode_semi_constrained_number(Bytes2) end. %% X.691:10.7 Encoding of a semi-constrained whole number @@ -465,12 +381,10 @@ encode_semi_constrained_number(Lb,Val) -> [encode_length(undefined,Size),Bin] end. -decode_semi_constrained_number(Bytes,{Lb,_}) -> - decode_semi_constrained_number(Bytes,Lb); -decode_semi_constrained_number(Bytes,Lb) -> +decode_semi_constrained_number(Bytes) -> {Len,Bytes2} = decode_length(Bytes,undefined), {V,Bytes3} = getoctets(Bytes2,Len), - {V+Lb,Bytes3}. + {V,Bytes3}. encode_constrained_number(Range,{Name,Val}) when is_atom(Name) -> encode_constrained_number(Range,Val); @@ -552,23 +466,6 @@ enint(-1, [B1|T]) when B1 > 127 -> enint(N, Acc) -> enint(N bsr 8, [N band 16#ff|Acc]). -decode_unconstrained_number(Bytes) -> - {Len,Bytes2} = decode_length(Bytes,undefined), - {Ints,Bytes3} = getoctets_as_bin(Bytes2,Len), - {dec_integer(Ints),Bytes3}. - -dec_integer(Bin = <<0:1,_:7,_/bitstring>>) -> - decpint(Bin); -dec_integer(<<_:1,B:7,BitStr/bitstring>>) -> - Size = bit_size(BitStr), - <<I:Size>> = BitStr, - (-128 + B) bsl bit_size(BitStr) bor I. - -decpint(Bin) -> - Size = bit_size(Bin), - <<Int:Size>> = Bin, - Int. - %% X.691:10.9 Encoding of a length determinant %%encode_small_length(undefined,Len) -> % null means no UpperBound @@ -583,7 +480,7 @@ encode_length(undefined,Len) -> % un-constrained Len < 16384 -> <<2:2,Len:14>>; true -> % should be able to endode length >= 16384 - exit({error,{asn1,{encode_length,{nyi,above_16k}}}}) + error({error,{asn1,{encode_length,{nyi,above_16k}}}}) end; encode_length({0,'MAX'},Len) -> @@ -609,18 +506,6 @@ encode_small_length(Len) -> [<<1:1>>,encode_length(undefined,Len)]. -decode_small_length(Buffer) -> - case getbit(Buffer) of - {0,Remain} -> - {Bits,Remain2} = getbits(Remain,6), - {Bits+1,Remain2}; - {1,Remain} -> - decode_length(Remain,undefined) - end. - -decode_length(Buffer) -> - decode_length(Buffer,undefined). - %% un-constrained decode_length(<<0:1,Oct:7,Rest/bitstring>>,undefined) -> {Oct,Rest}; @@ -663,38 +548,6 @@ encode_boolean({Name,Val}) when is_atom(Name) -> encode_boolean(Val) -> exit({error,{asn1,{encode_boolean,Val}}}). -decode_boolean(Buffer) -> %when record(Buffer,buffer) - case getbit(Buffer) of - {1,Remain} -> {true,Remain}; - {0,Remain} -> {false,Remain} - end. - - -%% ENUMERATED with extension marker -decode_enumerated(Buffer,C,{Ntup1,Ntup2}) when is_tuple(Ntup1), is_tuple(Ntup2) -> - {Ext,Buffer2} = getext(Buffer), - case Ext of - 0 -> % not an extension value - {Val,Buffer3} = decode_integer(Buffer2,C), - case catch (element(Val+1,Ntup1)) of - NewVal when is_atom(NewVal) -> {NewVal,Buffer3}; - _Error -> exit({error,{asn1,{decode_enumerated,{Val,[Ntup1,Ntup2]}}}}) - end; - 1 -> % this an extension value - {Val,Buffer3} = decode_small_number(Buffer2), - case catch (element(Val+1,Ntup2)) of - NewVal when is_atom(NewVal) -> {NewVal,Buffer3}; - _ -> {{asn1_enum,Val},Buffer3} - end - end; - -decode_enumerated(Buffer,C,NamedNumberTup) when is_tuple(NamedNumberTup) -> - {Val,Buffer2} = decode_integer(Buffer,C), - case catch (element(Val+1,NamedNumberTup)) of - NewVal when is_atom(NewVal) -> {NewVal,Buffer2}; - _Error -> exit({error,{asn1,{decode_enumerated,{Val,NamedNumberTup}}}}) - end. - %%============================================================================ %%============================================================================ @@ -1053,36 +906,71 @@ encode_octet_string(C,Val) -> list_to_binary(Val); 2 -> list_to_binary(Val); - Sv when Sv =<65535, Sv == length(Val) -> % fixed length - list_to_binary(Val); - VR = {_,_} -> - [encode_length(VR,length(Val)),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) -> - [encode_length({hd(Sv),lists:max(Sv)},length(Val)),list_to_binary(Val)]; + 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 -> - [encode_length(undefined,length(Val)),list_to_binary(Val)] + try + [encode_length(undefined, length(Val)),list_to_binary(Val)] + catch + error:{error,{asn1,{encode_length,_}}} -> + encode_fragmented_octet_string(Val) + end end. -decode_octet_string(Bytes,C) -> - decode_octet_string1(Bytes,get_constraint(C,'SizeConstraint')). -decode_octet_string1(<<B1,Bytes/bitstring>>,1) -> - {[B1],Bytes}; -decode_octet_string1(<<B1,B2,Bytes/bitstring>>,2) -> - {[B1,B2],Bytes}; -decode_octet_string1(Bytes,Sv) when is_integer(Sv),Sv=<65535 -> - getoctets_as_list(Bytes,Sv); -decode_octet_string1(Bytes,Sv) when is_integer(Sv) -> - decode_fragmented_octets(Bytes,Sv); -decode_octet_string1(Bytes,{Lb,Ub}) -> - {Len,Bytes2} = decode_length(Bytes,{Lb,Ub}), - getoctets_as_list(Bytes2,Len); -decode_octet_string1(Bytes,Sv) when is_list(Sv) -> - {Len,Bytes2} = decode_length(Bytes,{hd(Sv),lists:max(Sv)}), - getoctets_as_list(Bytes2,Len); -decode_octet_string1(Bytes,no) -> - {Len,Bytes2} = decode_length(Bytes,undefined), - getoctets_as_list(Bytes2,Len). - +encode_fragmented_octet_string(Val) -> + Bin = list_to_binary(Val), + efos_1(Bin). + +efos_1(<<B:16#10000/binary,T/binary>>) -> + [<<3:2,4:6>>,B|efos_1(T)]; +efos_1(<<B:16#C000/binary,T/binary>>) -> + [<<3:2,3:6>>,B|efos_1(T)]; +efos_1(<<B:16#8000/binary,T/binary>>) -> + [<<3:2,2:6>>,B|efos_1(T)]; +efos_1(<<B:16#4000/binary,T/binary>>) -> + [<<3:2,1:6>>,B|efos_1(T)]; +efos_1(<<B/bitstring>>) -> + Len = byte_size(B), + [encode_length(undefined, Len),B]. + +decode_fragmented(SegSz0, Buf0, Unit) -> + SegSz = SegSz0 * Unit * ?'16K', + <<Res:SegSz/bitstring,Buf/bitstring>> = Buf0, + decode_fragmented_1(Buf, Unit, Res). + +decode_fragmented_1(<<0:1,N:7,Buf0/bitstring>>, Unit, Res) -> + Sz = N*Unit, + <<S:Sz/bitstring,Buf/bitstring>> = Buf0, + {<<Res/bitstring,S/bitstring>>,Buf}; +decode_fragmented_1(<<1:1,0:1,N:14,Buf0/bitstring>>, Unit, Res) -> + Sz = N*Unit, + <<S:Sz/bitstring,Buf/bitstring>> = Buf0, + {<<Res/bitstring,S/bitstring>>,Buf}; +decode_fragmented_1(<<1:1,1:1,SegSz0:6,Buf0/bitstring>>, Unit, Res0) -> + SegSz = SegSz0 * Unit * ?'16K', + <<Frag:SegSz/bitstring,Buf/bitstring>> = Buf0, + Res = <<Res0/bitstring,Frag/bitstring>>, + decode_fragmented_1(Buf, Unit, Res). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -1427,12 +1315,6 @@ decode_UTF8String(Bytes) -> getoctets_as_bin(Bytes2,Len). - % X.691:17 -encode_null(_) -> []. % encodes to nothing - -decode_null(Bytes) -> - {'NULL',Bytes}. - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% encode_object_identifier(Val) -> CompleteList %% encode_object_identifier({Name,Val}) -> CompleteList |