%% Generated by the Erlang ASN.1 BER compiler. Version: 5.3.4 %% Purpose: Encoding and decoding of the types in SPNEGO. -module('SPNEGO'). -moduledoc false. -compile(nowarn_unused_vars). -dialyzer(no_improper_lists). -dialyzer(no_match). -include("SPNEGO.hrl"). -asn1_info([{vsn,'5.3.4'}, {module,'SPNEGO'}, {options,[{i,"/home/alex/dev/kerlberos2/asngen"}, ber, {outdir,"/home/alex/dev/kerlberos2/asngen"}, ber,der,undec_rest, {i,"."}, {i,"/home/alex/dev/kerlberos2/asn1"}]}]). -export([encoding_rule/0,maps/0,bit_string_format/0, legacy_erlang_types/0]). -export(['dialyzer-suppressions'/1]). -export([ enc_MechType/2, enc_NegotiationToken/2, enc_MechTypeList/2, enc_NegHints/2, enc_NegTokenInit/2, enc_ContextFlags/2, enc_NegTokenResp/2, enc_InitialContextToken/2, enc_InnerContextToken/2 ]). -export([ dec_MechType/2, dec_NegotiationToken/2, dec_MechTypeList/2, dec_NegHints/2, dec_NegTokenInit/2, dec_ContextFlags/2, dec_NegTokenResp/2, dec_InitialContextToken/2, dec_InnerContextToken/2 ]). -export([ 'id-gssapi'/0, 'id-spnego'/0, 'id-user-name'/0, 'id-machine-uid-name'/0, 'id-string-uid-name'/0, 'id-service-name'/0, 'id-krb5-name'/0, 'id-ms-mechs'/0, 'id-mech-spnego'/0, 'id-mech-snegoex'/0, 'id-mech-ntlm'/0, 'id-mech-krb5'/0, 'id-mech-krb5-usertouser'/0 ]). -export([info/0]). -export([encode/2,decode/2]). encoding_rule() -> ber. maps() -> false. bit_string_format() -> bitstring. legacy_erlang_types() -> false. encode(Type, Data) -> try iolist_to_binary(element(1, encode_disp(Type, Data))) of Bytes -> {ok,Bytes} catch Class:Exception:Stk when Class =:= error; Class =:= exit -> case Exception of {error,{asn1,Reason}} -> {error,{asn1,{Reason,Stk}}}; Reason -> {error,{asn1,{Reason,Stk}}} end end. decode(Type, Data0) -> try {Data,Rest} = ber_decode_nif(Data0), Result = decode_disp(Type, Data), {ok,Result,Rest} catch Class:Exception:Stk when Class =:= error; Class =:= exit -> case Exception of {error,{asn1,Reason}} -> {error,{asn1,{Reason,Stk}}}; Reason -> {error,{asn1,{Reason,Stk}}} end end. encode_disp('MechType', Data) -> enc_MechType(Data); encode_disp('NegotiationToken', Data) -> enc_NegotiationToken(Data); encode_disp('MechTypeList', Data) -> enc_MechTypeList(Data); encode_disp('NegHints', Data) -> enc_NegHints(Data); encode_disp('NegTokenInit', Data) -> enc_NegTokenInit(Data); encode_disp('ContextFlags', Data) -> enc_ContextFlags(Data); encode_disp('NegTokenResp', Data) -> enc_NegTokenResp(Data); encode_disp('InitialContextToken', Data) -> enc_InitialContextToken(Data); encode_disp('InnerContextToken', Data) -> enc_InnerContextToken(Data); encode_disp(Type, _Data) -> exit({error,{asn1,{undefined_type,Type}}}). decode_disp('MechType', Data) -> dec_MechType(Data); decode_disp('NegotiationToken', Data) -> dec_NegotiationToken(Data); decode_disp('MechTypeList', Data) -> dec_MechTypeList(Data); decode_disp('NegHints', Data) -> dec_NegHints(Data); decode_disp('NegTokenInit', Data) -> dec_NegTokenInit(Data); decode_disp('ContextFlags', Data) -> dec_ContextFlags(Data); decode_disp('NegTokenResp', Data) -> dec_NegTokenResp(Data); decode_disp('InitialContextToken', Data) -> dec_InitialContextToken(Data); decode_disp('InnerContextToken', Data) -> dec_InnerContextToken(Data); decode_disp(Type, _Data) -> exit({error,{asn1,{undefined_type,Type}}}). info() -> case ?MODULE:module_info(attributes) of Attributes when is_list(Attributes) -> case lists:keyfind(asn1_info, 1, Attributes) of {_,Info} when is_list(Info) -> Info; _ -> [] end; _ -> [] end. %%================================ %% MechType %%================================ enc_MechType(Val) -> enc_MechType(Val, [<<6>>]). enc_MechType(Val, TagIn) -> encode_object_identifier(Val, TagIn). dec_MechType(Tlv) -> dec_MechType(Tlv, [6]). dec_MechType(Tlv, TagIn) -> decode_object_identifier(Tlv, TagIn). %%================================ %% NegotiationToken %%================================ enc_NegotiationToken(Val) -> enc_NegotiationToken(Val, []). enc_NegotiationToken(Val, TagIn) -> {EncBytes,EncLen} = case element(1,Val) of negTokenInit -> 'enc_NegTokenInit'(element(2,Val), [<<48>>,<<160>>]); negTokenResp -> 'enc_NegTokenResp'(element(2,Val), [<<48>>,<<161>>]); Else -> exit({error,{asn1,{invalid_choice_type,Else}}}) end, encode_tags(TagIn, EncBytes, EncLen). dec_NegotiationToken(Tlv) -> dec_NegotiationToken(Tlv, []). dec_NegotiationToken(Tlv, TagIn) -> Tlv1 = match_tags(Tlv, TagIn), case (case Tlv1 of [CtempTlv1] -> CtempTlv1; _ -> Tlv1 end) of %% 'negTokenInit' {131072, V1} -> {negTokenInit, 'dec_NegTokenInit'(V1, [16])}; %% 'negTokenResp' {131073, V1} -> {negTokenResp, 'dec_NegTokenResp'(V1, [16])}; Else -> exit({error,{asn1,{invalid_choice_tag,Else}}}) end . %%================================ %% MechTypeList %%================================ enc_MechTypeList(Val) -> enc_MechTypeList(Val, [<<48>>]). enc_MechTypeList(Val, TagIn) -> {EncBytes,EncLen} = 'enc_MechTypeList_components'(Val,[],0), encode_tags(TagIn, EncBytes, EncLen). 'enc_MechTypeList_components'([], AccBytes, AccLen) -> {lists:reverse(AccBytes),AccLen}; 'enc_MechTypeList_components'([H|T],AccBytes, AccLen) -> {EncBytes,EncLen} = encode_object_identifier(H, [<<6>>]), 'enc_MechTypeList_components'(T,[EncBytes|AccBytes], AccLen + EncLen). dec_MechTypeList(Tlv) -> dec_MechTypeList(Tlv, [16]). dec_MechTypeList(Tlv, TagIn) -> %%------------------------------------------------- %% decode tag and length %%------------------------------------------------- Tlv1 = match_tags(Tlv, TagIn), [decode_object_identifier(V1, [6]) || V1 <- Tlv1]. %%================================ %% NegHints %%================================ enc_NegHints(Val) -> enc_NegHints(Val, [<<48>>]). enc_NegHints(Val, TagIn) -> {_,Cindex1,Cindex2} = Val, %%------------------------------------------------- %% attribute hintName(1) with type GeneralString OPTIONAL %%------------------------------------------------- {EncBytes1,EncLen1} = case Cindex1 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_restricted_string(Cindex1, [<<27>>,<<160>>]) end, %%------------------------------------------------- %% attribute hintAddress(2) with type OCTET STRING OPTIONAL %%------------------------------------------------- {EncBytes2,EncLen2} = case Cindex2 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_restricted_string(Cindex2, [<<4>>,<<161>>]) end, BytesSoFar = [EncBytes1, EncBytes2], LenSoFar = EncLen1 + EncLen2, encode_tags(TagIn, BytesSoFar, LenSoFar). dec_NegHints(Tlv) -> dec_NegHints(Tlv, [16]). dec_NegHints(Tlv, TagIn) -> %%------------------------------------------------- %% decode tag and length %%------------------------------------------------- Tlv1 = match_tags(Tlv, TagIn), %%------------------------------------------------- %% attribute hintName(1) with type GeneralString OPTIONAL %%------------------------------------------------- {Term1,Tlv2} = case Tlv1 of [{131072,V1}|TempTlv2] -> {begin binary_to_list(decode_restricted_string(V1, [27])) end , TempTlv2}; _ -> { asn1_NOVALUE, Tlv1} end, %%------------------------------------------------- %% attribute hintAddress(2) with type OCTET STRING OPTIONAL %%------------------------------------------------- {Term2,Tlv3} = case Tlv2 of [{131073,V2}|TempTlv3] -> {decode_octet_string(V2, [4]), TempTlv3}; _ -> { asn1_NOVALUE, Tlv2} end, case Tlv3 of [] -> true;_ -> exit({error,{asn1, {unexpected,Tlv3}}}) % extra fields not allowed end, Res1 = {'NegHints',Term1,Term2}, Res1. %%================================ %% NegTokenInit %%================================ enc_NegTokenInit(Val) -> enc_NegTokenInit(Val, [<<48>>]). enc_NegTokenInit(Val, TagIn) -> {_,Cindex1,Cindex2,Cindex3,Cindex4,Cindex5} = Val, %%------------------------------------------------- %% attribute mechTypes(1) External SPNEGO:MechTypeList OPTIONAL %%------------------------------------------------- {EncBytes1,EncLen1} = case Cindex1 of asn1_NOVALUE -> {<<>>,0}; _ -> 'enc_MechTypeList'(Cindex1, [<<48>>,<<160>>]) end, %%------------------------------------------------- %% attribute reqFlags(2) with type BIT STRING OPTIONAL %%------------------------------------------------- {EncBytes2,EncLen2} = case Cindex2 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_named_bit_string(Cindex2, [{delegFlag,0},{mutualFlag,1},{replayFlag,2},{sequenceFlag,3},{anonFlag,4},{confFlag,5},{integFlag,6}], [<<3>>,<<161>>]) end, %%------------------------------------------------- %% attribute mechToken(3) with type OCTET STRING OPTIONAL %%------------------------------------------------- {EncBytes3,EncLen3} = case Cindex3 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_restricted_string(Cindex3, [<<4>>,<<162>>]) end, %%------------------------------------------------- %% attribute negHints(4) External SPNEGO:NegHints OPTIONAL %%------------------------------------------------- {EncBytes4,EncLen4} = case Cindex4 of asn1_NOVALUE -> {<<>>,0}; _ -> 'enc_NegHints'(Cindex4, [<<48>>,<<163>>]) end, %%------------------------------------------------- %% attribute mechListMIC(5) with type OCTET STRING OPTIONAL %%------------------------------------------------- {EncBytes5,EncLen5} = case Cindex5 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_restricted_string(Cindex5, [<<4>>,<<165>>]) end, BytesSoFar = [EncBytes1, EncBytes2, EncBytes3, EncBytes4, EncBytes5], LenSoFar = EncLen1 + EncLen2 + EncLen3 + EncLen4 + EncLen5, encode_tags(TagIn, BytesSoFar, LenSoFar). dec_NegTokenInit(Tlv) -> dec_NegTokenInit(Tlv, [16]). dec_NegTokenInit(Tlv, TagIn) -> %%------------------------------------------------- %% decode tag and length %%------------------------------------------------- Tlv1 = match_tags(Tlv, TagIn), %%------------------------------------------------- %% attribute mechTypes(1) External SPNEGO:MechTypeList OPTIONAL %%------------------------------------------------- {Term1,Tlv2} = case Tlv1 of [{131072,V1}|TempTlv2] -> {'dec_MechTypeList'(V1, [16]), TempTlv2}; _ -> { asn1_NOVALUE, Tlv1} end, %%------------------------------------------------- %% attribute reqFlags(2) with type BIT STRING OPTIONAL %%------------------------------------------------- {Term2,Tlv3} = case Tlv2 of [{131073,V2}|TempTlv3] -> {decode_named_bit_string(V2, [{delegFlag,0},{mutualFlag,1},{replayFlag,2},{sequenceFlag,3},{anonFlag,4},{confFlag,5},{integFlag,6}], [3]), TempTlv3}; _ -> { asn1_NOVALUE, Tlv2} end, %%------------------------------------------------- %% attribute mechToken(3) with type OCTET STRING OPTIONAL %%------------------------------------------------- {Term3,Tlv4} = case Tlv3 of [{131074,V3}|TempTlv4] -> {decode_octet_string(V3, [4]), TempTlv4}; _ -> { asn1_NOVALUE, Tlv3} end, %%------------------------------------------------- %% attribute negHints(4) External SPNEGO:NegHints OPTIONAL %%------------------------------------------------- {Term4,Tlv5} = case Tlv4 of [{131075,V4}|TempTlv5] -> {'dec_NegHints'(V4, [16]), TempTlv5}; _ -> { asn1_NOVALUE, Tlv4} end, %%------------------------------------------------- %% attribute mechListMIC(5) with type OCTET STRING OPTIONAL %%------------------------------------------------- {Term5,Tlv6} = case Tlv5 of [{131077,V5}|TempTlv6] -> {decode_octet_string(V5, [4]), TempTlv6}; _ -> { asn1_NOVALUE, Tlv5} end, case Tlv6 of [] -> true;_ -> exit({error,{asn1, {unexpected,Tlv6}}}) % extra fields not allowed end, Res1 = {'NegTokenInit',Term1,Term2,Term3,Term4,Term5}, Res1. %%================================ %% ContextFlags %%================================ enc_ContextFlags(Val) -> enc_ContextFlags(Val, [<<3>>]). enc_ContextFlags(Val, TagIn) -> encode_named_bit_string(Val, [{delegFlag,0},{mutualFlag,1},{replayFlag,2},{sequenceFlag,3},{anonFlag,4},{confFlag,5},{integFlag,6}], TagIn). dec_ContextFlags(Tlv) -> dec_ContextFlags(Tlv, [3]). dec_ContextFlags(Tlv, TagIn) -> decode_named_bit_string(Tlv, [{delegFlag,0},{mutualFlag,1},{replayFlag,2},{sequenceFlag,3},{anonFlag,4},{confFlag,5},{integFlag,6}], TagIn). %%================================ %% NegTokenResp %%================================ enc_NegTokenResp(Val) -> enc_NegTokenResp(Val, [<<48>>]). enc_NegTokenResp(Val, TagIn) -> {_,Cindex1,Cindex2,Cindex3,Cindex4} = Val, %%------------------------------------------------- %% attribute negState(1) with type ENUMERATED OPTIONAL %%------------------------------------------------- {EncBytes1,EncLen1} = case Cindex1 of asn1_NOVALUE -> {<<>>,0}; _ -> case Cindex1 of 'accept-completed' -> encode_tags([<<10>>,<<160>>], [0], 1); 'accept-incomplete' -> encode_tags([<<10>>,<<160>>], [1], 1); reject -> encode_tags([<<10>>,<<160>>], [2], 1); 'request-mic' -> encode_tags([<<10>>,<<160>>], [3], 1); Enumval1 -> exit({error,{asn1, {enumerated_not_in_range,Enumval1}}}) end end, %%------------------------------------------------- %% attribute supportedMech(2) with type OBJECT IDENTIFIER OPTIONAL %%------------------------------------------------- {EncBytes2,EncLen2} = case Cindex2 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_object_identifier(Cindex2, [<<6>>,<<161>>]) end, %%------------------------------------------------- %% attribute responseToken(3) with type OCTET STRING OPTIONAL %%------------------------------------------------- {EncBytes3,EncLen3} = case Cindex3 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_restricted_string(Cindex3, [<<4>>,<<162>>]) end, %%------------------------------------------------- %% attribute mechListMIC(4) with type OCTET STRING OPTIONAL %%------------------------------------------------- {EncBytes4,EncLen4} = case Cindex4 of asn1_NOVALUE -> {<<>>,0}; _ -> encode_restricted_string(Cindex4, [<<4>>,<<163>>]) end, BytesSoFar = [EncBytes1, EncBytes2, EncBytes3, EncBytes4], LenSoFar = EncLen1 + EncLen2 + EncLen3 + EncLen4, encode_tags(TagIn, BytesSoFar, LenSoFar). dec_NegTokenResp(Tlv) -> dec_NegTokenResp(Tlv, [16]). dec_NegTokenResp(Tlv, TagIn) -> %%------------------------------------------------- %% decode tag and length %%------------------------------------------------- Tlv1 = match_tags(Tlv, TagIn), %%------------------------------------------------- %% attribute negState(1) with type ENUMERATED OPTIONAL %%------------------------------------------------- {Term1,Tlv2} = case Tlv1 of [{131072,V1}|TempTlv2] -> {case decode_integer(V1, [10]) of 0 -> 'accept-completed'; 1 -> 'accept-incomplete'; 2 -> reject; 3 -> 'request-mic'; Default1 -> exit({error,{asn1,{illegal_enumerated,Default1}}}) end, TempTlv2}; _ -> { asn1_NOVALUE, Tlv1} end, %%------------------------------------------------- %% attribute supportedMech(2) with type OBJECT IDENTIFIER OPTIONAL %%------------------------------------------------- {Term2,Tlv3} = case Tlv2 of [{131073,V2}|TempTlv3] -> {decode_object_identifier(V2, [6]), TempTlv3}; _ -> { asn1_NOVALUE, Tlv2} end, %%------------------------------------------------- %% attribute responseToken(3) with type OCTET STRING OPTIONAL %%------------------------------------------------- {Term3,Tlv4} = case Tlv3 of [{131074,V3}|TempTlv4] -> {decode_octet_string(V3, [4]), TempTlv4}; _ -> { asn1_NOVALUE, Tlv3} end, %%------------------------------------------------- %% attribute mechListMIC(4) with type OCTET STRING OPTIONAL %%------------------------------------------------- {Term4,Tlv5} = case Tlv4 of [{131075,V4}|TempTlv5] -> {decode_octet_string(V4, [4]), TempTlv5}; _ -> { asn1_NOVALUE, Tlv4} end, case Tlv5 of [] -> true;_ -> exit({error,{asn1, {unexpected,Tlv5}}}) % extra fields not allowed end, Res1 = {'NegTokenResp',Term1,Term2,Term3,Term4}, Res1. %%================================ %% InitialContextToken %%================================ enc_InitialContextToken(Val) -> enc_InitialContextToken(Val, [<<96>>]). enc_InitialContextToken(Val, TagIn) -> {_,Cindex1,Cindex2} = Val, %%------------------------------------------------- %% attribute thisMech(1) with type OBJECT IDENTIFIER %%------------------------------------------------- {EncBytes1,EncLen1} = encode_object_identifier(Cindex1, [<<6>>]), %%------------------------------------------------- %% attribute innerContextToken(2) External SPNEGO:InnerContextToken %%------------------------------------------------- {EncBytes2,EncLen2} = 'enc_InnerContextToken'(Cindex2, []), BytesSoFar = [EncBytes1, EncBytes2], LenSoFar = EncLen1 + EncLen2, encode_tags(TagIn, BytesSoFar, LenSoFar). dec_InitialContextToken(Tlv) -> dec_InitialContextToken(Tlv, [65536]). dec_InitialContextToken(Tlv, TagIn) -> %%------------------------------------------------- %% decode tag and length %%------------------------------------------------- Tlv1 = match_tags(Tlv, TagIn), %%------------------------------------------------- %% attribute thisMech(1) with type OBJECT IDENTIFIER %%------------------------------------------------- [V1|Tlv2] = Tlv1, Term1 = decode_object_identifier(V1, [6]), %%------------------------------------------------- %% attribute innerContextToken(2) External SPNEGO:InnerContextToken %%------------------------------------------------- [V2|Tlv3] = Tlv2, Term2 = 'dec_InnerContextToken'(V2, []), case Tlv3 of [] -> true;_ -> exit({error,{asn1, {unexpected,Tlv3}}}) % extra fields not allowed end, Res1 = {'InitialContextToken',Term1,Term2}, Res1. %%================================ %% InnerContextToken %%================================ enc_InnerContextToken(Val) -> enc_InnerContextToken(Val, []). enc_InnerContextToken(Val, TagIn) -> %% OPEN TYPE encode_open_type(Val, TagIn). dec_InnerContextToken(Tlv) -> dec_InnerContextToken(Tlv, []). dec_InnerContextToken(Tlv, TagIn) -> decode_open_type_as_binary(Tlv, TagIn). 'id-gssapi'() -> {1,2,840,113554,1,2}. 'id-spnego'() -> {1,3,6,1,5,5,2}. 'id-user-name'() -> {1,2,840,113554,1,2,1,1}. 'id-machine-uid-name'() -> {1,2,840,113554,1,2,1,2}. 'id-string-uid-name'() -> {1,2,840,113554,1,2,1,3}. 'id-service-name'() -> {1,2,840,113554,1,2,1,4}. 'id-krb5-name'() -> {1,2,840,113554,1,2,2,1}. 'id-ms-mechs'() -> {1,3,6,1,4,1,311,2,2}. 'id-mech-spnego'() -> {1,3,6,1,5,5,2}. 'id-mech-snegoex'() -> {1,3,6,1,4,1,311,2,2,30}. 'id-mech-ntlm'() -> {1,3,6,1,4,1,311,2,2,10}. 'id-mech-krb5'() -> {1,2,840,113554,1,2,2}. 'id-mech-krb5-usertouser'() -> {1,2,840,113554,1,2,2,3}. %%% %%% Run-time functions. %%% 'dialyzer-suppressions'(Arg) -> ok. ber_decode_nif(B) -> asn1rt_nif:decode_ber_tlv(B). ber_encode([Tlv]) -> ber_encode(Tlv); ber_encode(Tlv) when is_binary(Tlv) -> Tlv; ber_encode(Tlv) -> asn1rt_nif:encode_ber_tlv(Tlv). collect_parts(TlvList) -> collect_parts(TlvList, []). collect_parts([{_, L} | Rest], Acc) when is_list(L) -> collect_parts(Rest, [collect_parts(L) | Acc]); collect_parts([{3, <>} | Rest], _Acc) -> collect_parts_bit(Rest, [Bits], Unused); collect_parts([{_T, V} | Rest], Acc) -> collect_parts(Rest, [V | Acc]); collect_parts([], Acc) -> list_to_binary(lists:reverse(Acc)). collect_parts_bit([{3, <>} | Rest], Acc, Uacc) -> collect_parts_bit(Rest, [Bits | Acc], Unused + Uacc); collect_parts_bit([], Acc, Uacc) -> list_to_binary([Uacc | lists:reverse(Acc)]). dec_subidentifiers(<<>>, _Av, Al) -> lists:reverse(Al); dec_subidentifiers(<<1:1,H:7,T/binary>>, Av, Al) -> dec_subidentifiers(T, Av bsl 7 + H, Al); dec_subidentifiers(<>, Av, Al) -> dec_subidentifiers(T, 0, [Av bsl 7 + H | Al]). decode_bitstring2(1, Unused, <>) -> lists:sublist([B7, B6, B5, B4, B3, B2, B1, B0], 8 - Unused); decode_bitstring2(Len, Unused, <>) -> [B7, B6, B5, B4, B3, B2, B1, B0 | decode_bitstring2(Len - 1, Unused, Buffer)]. decode_bitstring_NNL(BitList, NamedNumberList) -> decode_bitstring_NNL(BitList, NamedNumberList, 0, []). decode_bitstring_NNL([], _, _No, Result) -> lists:reverse(Result); decode_bitstring_NNL([B | BitList], [{Name, No} | NamedNumberList], No, Result) -> if B =:= 0 -> decode_bitstring_NNL(BitList, NamedNumberList, No + 1, Result); true -> decode_bitstring_NNL(BitList, NamedNumberList, No + 1, [Name | Result]) end; decode_bitstring_NNL([1 | BitList], NamedNumberList, No, Result) -> decode_bitstring_NNL(BitList, NamedNumberList, No + 1, [{bit, No} | Result]); decode_bitstring_NNL([0 | BitList], NamedNumberList, No, Result) -> decode_bitstring_NNL(BitList, NamedNumberList, No + 1, Result). decode_integer(Tlv, TagIn) -> Bin = match_tags(Tlv, TagIn), Len = byte_size(Bin), <> = Bin, Int. decode_named_bit_string(Buffer, NamedNumberList, Tags) -> case match_and_collect(Buffer, Tags) of <<0>> -> []; <> -> BitString = decode_bitstring2(byte_size(Bits), Unused, Bits), decode_bitstring_NNL(BitString, NamedNumberList) end. decode_object_identifier(Tlv, Tags) -> Val = match_tags(Tlv, Tags), [AddedObjVal | ObjVals] = dec_subidentifiers(Val, 0, []), {Val1, Val2} = if AddedObjVal < 40 -> {0, AddedObjVal}; AddedObjVal < 80 -> {1, AddedObjVal - 40}; true -> {2, AddedObjVal - 80} end, list_to_tuple([Val1, Val2 | ObjVals]). decode_octet_string(Tlv, TagsIn) -> Bin = match_and_collect(Tlv, TagsIn), binary:copy(Bin). decode_open_type_as_binary(Tlv, TagIn) -> ber_encode(match_tags(Tlv, TagIn)). decode_restricted_string(Tlv, TagsIn) -> match_and_collect(Tlv, TagsIn). do_encode_named_bit_string([FirstVal | RestVal], NamedBitList, TagIn) -> ToSetPos = get_all_bitposes([FirstVal | RestVal], NamedBitList, []), Size = lists:max(ToSetPos) + 1, BitList = make_and_set_list(Size, ToSetPos, 0), {Len, Unused, OctetList} = encode_bitstring(BitList), encode_tags(TagIn, [Unused | OctetList], Len + 1). e_object_identifier({'OBJECT IDENTIFIER', V}) -> e_object_identifier(V); e_object_identifier(V) when is_tuple(V) -> e_object_identifier(tuple_to_list(V)); e_object_identifier([E1, E2 | Tail]) -> Head = 40 * E1 + E2, {H, Lh} = mk_object_val(Head), {R, Lr} = lists:mapfoldl(fun enc_obj_id_tail/2, 0, Tail), {[H | R], Lh + Lr}. enc_obj_id_tail(H, Len) -> {B, L} = mk_object_val(H), {B, Len + L}. encode_bitstring([B8, B7, B6, B5, B4, B3, B2, B1 | Rest]) -> Val = B8 bsl 7 bor (B7 bsl 6) bor (B6 bsl 5) bor (B5 bsl 4) bor (B4 bsl 3) bor (B3 bsl 2) bor (B2 bsl 1) bor B1, encode_bitstring(Rest, [Val], 1); encode_bitstring(Val) -> {Unused, Octet} = unused_bitlist(Val, 7, 0), {1, Unused, [Octet]}. encode_bitstring([B8, B7, B6, B5, B4, B3, B2, B1 | Rest], Ack, Len) -> Val = B8 bsl 7 bor (B7 bsl 6) bor (B6 bsl 5) bor (B5 bsl 4) bor (B4 bsl 3) bor (B3 bsl 2) bor (B2 bsl 1) bor B1, encode_bitstring(Rest, [Ack, Val], Len + 1); encode_bitstring([], Ack, Len) -> {Len, 0, Ack}; encode_bitstring(Rest, Ack, Len) -> {Unused, Val} = unused_bitlist(Rest, 7, 0), {Len + 1, Unused, [Ack, Val]}. encode_length(L) when L =< 127 -> {[L], 1}; encode_length(L) -> Oct = minimum_octets(L), Len = length(Oct), if Len =< 126 -> {[128 bor Len | Oct], Len + 1}; true -> exit({error, {asn1, too_long_length_oct, Len}}) end. encode_named_bit_string([H | _] = Bits, NamedBitList, TagIn) when is_atom(H) -> do_encode_named_bit_string(Bits, NamedBitList, TagIn); encode_named_bit_string([{bit, _} | _] = Bits, NamedBitList, TagIn) -> do_encode_named_bit_string(Bits, NamedBitList, TagIn); encode_named_bit_string([], _NamedBitList, TagIn) -> encode_unnamed_bit_string(<<>>, TagIn); encode_named_bit_string(Bits, _NamedBitList, TagIn) when is_bitstring(Bits) -> encode_unnamed_bit_string(Bits, TagIn). encode_object_identifier(Val, TagIn) -> encode_tags(TagIn, e_object_identifier(Val)). encode_open_type(Val, T) when is_list(Val) -> encode_open_type(list_to_binary(Val), T); encode_open_type(Val, Tag) -> encode_tags(Tag, Val, byte_size(Val)). encode_restricted_string(OctetList, TagIn) when is_binary(OctetList) -> encode_tags(TagIn, OctetList, byte_size(OctetList)); encode_restricted_string(OctetList, TagIn) when is_list(OctetList) -> encode_tags(TagIn, OctetList, length(OctetList)). encode_tags(TagIn, {BytesSoFar, LenSoFar}) -> encode_tags(TagIn, BytesSoFar, LenSoFar). encode_tags([Tag | Trest], BytesSoFar, LenSoFar) -> {Bytes2, L2} = encode_length(LenSoFar), encode_tags(Trest, [Tag, Bytes2 | BytesSoFar], LenSoFar + byte_size(Tag) + L2); encode_tags([], BytesSoFar, LenSoFar) -> {BytesSoFar, LenSoFar}. encode_unnamed_bit_string(Bits, TagIn) -> Unused = (8 - bit_size(Bits) band 7) band 7, Bin = <>, encode_tags(TagIn, Bin, byte_size(Bin)). get_all_bitposes([{bit, ValPos} | Rest], NamedBitList, Ack) -> get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]); get_all_bitposes([Val | Rest], NamedBitList, Ack) when is_atom(Val) -> case lists:keyfind(Val, 1, NamedBitList) of {_ValName, ValPos} -> get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]); _ -> exit({error, {asn1, {bitstring_namedbit, Val}}}) end; get_all_bitposes([], _NamedBitList, Ack) -> lists:sort(Ack). make_and_set_list(0, [], _) -> []; make_and_set_list(0, _, _) -> exit({error, {asn1, bitstring_sizeconstraint}}); make_and_set_list(Len, [XPos | SetPos], XPos) -> [1 | make_and_set_list(Len - 1, SetPos, XPos + 1)]; make_and_set_list(Len, [Pos | SetPos], XPos) -> [0 | make_and_set_list(Len - 1, [Pos | SetPos], XPos + 1)]; make_and_set_list(Len, [], XPos) -> [0 | make_and_set_list(Len - 1, [], XPos + 1)]. match_and_collect(Tlv, TagsIn) -> Val = match_tags(Tlv, TagsIn), case Val of [_ | _] = PartList -> collect_parts(PartList); Bin when is_binary(Bin) -> Bin end. match_tags({T, V}, [T]) -> V; match_tags({T, V}, [T | Tt]) -> match_tags(V, Tt); match_tags([{T, V}], [T | Tt]) -> match_tags(V, Tt); match_tags([{T, _V} | _] = Vlist, [T]) -> Vlist; match_tags(Tlv, []) -> Tlv; match_tags({Tag, _V} = Tlv, [T | _Tt]) -> exit({error, {asn1, {wrong_tag, {{expected, T}, {got, Tag, Tlv}}}}}). minimum_octets(0, Acc) -> Acc; minimum_octets(Val, Acc) -> minimum_octets(Val bsr 8, [Val band 255 | Acc]). minimum_octets(Val) -> minimum_octets(Val, []). mk_object_val(0, Ack, Len) -> {Ack, Len}; mk_object_val(Val, Ack, Len) -> mk_object_val(Val bsr 7, [Val band 127 bor 128 | Ack], Len + 1). mk_object_val(Val) when Val =< 127 -> {[255 band Val], 1}; mk_object_val(Val) -> mk_object_val(Val bsr 7, [Val band 127], 1). unused_bitlist([], Trail, Ack) -> {Trail + 1, Ack}; unused_bitlist([Bit | Rest], Trail, Ack) -> unused_bitlist(Rest, Trail - 1, Bit bsl Trail bor Ack).