diff options
Diffstat (limited to 'lib/diameter')
| -rw-r--r-- | lib/diameter/include/diameter_gen.hrl | 119 | ||||
| -rw-r--r-- | lib/diameter/src/base/diameter_codec.erl | 78 | ||||
| -rw-r--r-- | lib/diameter/src/base/diameter_peer_fsm.erl | 6 | ||||
| -rw-r--r-- | lib/diameter/src/base/diameter_watchdog.erl | 7 | ||||
| -rw-r--r-- | lib/diameter/src/transport/diameter_sctp.erl | 2 | ||||
| -rw-r--r-- | lib/diameter/test/diameter_examples_SUITE.erl | 85 | ||||
| -rw-r--r-- | lib/diameter/test/diameter_traffic_SUITE.erl | 85 |
7 files changed, 272 insertions, 110 deletions
diff --git a/lib/diameter/include/diameter_gen.hrl b/lib/diameter/include/diameter_gen.hrl index 319ad5a783..7e91ce375f 100644 --- a/lib/diameter/include/diameter_gen.hrl +++ b/lib/diameter/include/diameter_gen.hrl @@ -30,6 +30,10 @@ %% error or not. See is_strict/0. -define(STRICT_KEY, strict). +%% Key that says whether or not we should do a best-effort decode +%% within Failed-AVP. +-define(FAILED_KEY, failed). + -type parent_name() :: atom(). %% parent = Message or AVP -type parent_record() :: tuple(). %% -type avp_name() :: atom(). @@ -286,15 +290,7 @@ decode(Name, 'AVP', Avp, Acc) -> %% d/3 -%% Don't try to decode the value of a Failed-AVP component since it -%% probably won't. Note that matching on 'Failed-AVP' assumes that -%% this is the RFC AVP, with code 279. Strictly, this doesn't need to -%% be the case, so we're assuming no one defines another Failed-AVP. -d('Failed-AVP' = Name, Avp, Acc) -> - decode_AVP(Name, Avp, Acc); - -%% Or try to decode. -d(Name, Avp, {Avps, Acc}) -> +d(Name, Avp, Acc) -> #diameter_avp{name = AvpName, data = Data, type = Type, @@ -307,53 +303,81 @@ d(Name, Avp, {Avps, Acc}) -> %% value around through the entire decode. The solution here is %% simple in comparison, both to implement and to understand. - Reset = relax(Type, M), + Strict = relax(Type, M), + %% Use the process dictionary again to keep track of whether we're + %% decoding within Failed-AVP and should ignore decode errors + %% altogether. + + Failed = relax(Name), %% Not AvpName or else a failed Failed-AVP + %% decode is packed into 'AVP'. try avp(decode, Data, AvpName) of V -> + {Avps, T} = Acc, {H, A} = ungroup(V, Avp), - {[H | Avps], pack_avp(Name, A, Acc)} + {[H | Avps], pack_avp(Name, A, T)} catch error: Reason -> - %% Failures here won't be visible since they're a "normal" - %% occurrence if the peer sends a faulty AVP that we need to - %% respond sensibly to. Log the occurence for traceability, - %% but the peer will also receive info in the resulting - %% answer-message. - Stack = diameter_lib:get_stacktrace(), - diameter_lib:log(decode_error, - ?MODULE, - ?LINE, - {Reason, AvpName, Stack}), - - {Rec, Failed} = Acc, - {[Avp|Avps], {Rec, [rc(Reason, Avp) | Failed]}} + d(undefined == Failed orelse is_failed(), Reason, Name, Avp, Acc) after - relax(Reset) + reset(?STRICT_KEY, Strict), + reset(?FAILED_KEY, Failed) end. +%% Ignore a decode error within Failed-AVP ... +d(true, _, Name, Avp, Acc) -> + decode_AVP(Name, Avp, Acc); + +%% ... or not. Failures here won't be visible since they're a "normal" +%% occurrence if the peer sends a faulty AVP that we need to respond +%% sensibly to. Log the occurence for traceability, but the peer will +%% also receive info in the resulting answer message. +d(false, Reason, Name, Avp, {Avps, Acc}) -> + Stack = diameter_lib:get_stacktrace(), + diameter_lib:log(decode_error, + ?MODULE, + ?LINE, + {Reason, Name, Avp#diameter_avp.name, Stack}), + {Rec, Failed} = Acc, + {[Avp|Avps], {Rec, [rc(Reason, Avp) | Failed]}}. + %% Set false in the process dictionary as soon as we see a Grouped AVP %% that doesn't set the M-bit, so that is_strict() can say whether or %% not to ignore the M-bit on an encapsulated AVP. relax('Grouped', M) -> - V = getr(?STRICT_KEY), - if V == undefined andalso not M -> + case getr(?STRICT_KEY) of + undefined when not M -> putr(?STRICT_KEY, M); - true -> + _ -> false end; relax(_, _) -> false. -%% Reset strictness. -relax(undefined) -> - eraser(?STRICT_KEY); -relax(false) -> - ok. - is_strict() -> false /= getr(?STRICT_KEY). +%% Set true in the process dictionary as soon as we see Failed-AVP. +%% Matching on 'Failed-AVP' assumes that this is the RFC AVP. +%% Strictly, this doesn't need to be the case. +relax('Failed-AVP') -> + case getr(?FAILED_KEY) of + undefined -> + putr(?FAILED_KEY, true); + true = Yes -> + Yes + end; +relax(_) -> + is_failed(). + +is_failed() -> + true == getr(?FAILED_KEY). + +reset(Key, undefined) -> + eraser(Key); +reset(_, _) -> + ok. + %% decode_AVP/3 %% %% Don't know this AVP: see if it can be packed in an 'AVP' field @@ -412,6 +436,23 @@ pack_avp(_, Arity, Avp, Acc) -> %% pack_AVP/3 +%% Length failure was induced because of a header/payload length +%% mismatch. The AVP Length is reset to match the received data if +%% this AVP is encoded in an answer message, since the length is +%% computed. +%% +%% Data is a truncated header if command_code = undefined, otherwise +%% payload bytes. The former is padded to the length of a header if +%% the AVP reaches an outgoing encode in diameter_codec. +%% +%% RFC 6733 says that an AVP returned with 5014 can contain a minimal +%% payload for the AVP's type, but in this case we don't know the +%% type. + +pack_AVP(_, #diameter_avp{data = <<0:1, Data/binary>>} = Avp, Acc) -> + {Rec, Failed} = Acc, + {Rec, [{5014, Avp#diameter_avp{data = Data}} | Failed]}; + pack_AVP(Name, #diameter_avp{is_mandatory = M} = Avp, Acc) -> case pack_arity(Name, M) of 0 -> @@ -424,7 +465,15 @@ pack_AVP(Name, #diameter_avp{is_mandatory = M} = Avp, Acc) -> %% Give Failed-AVP special treatment since it'll contain any %% unrecognized mandatory AVP's. pack_arity(Name, M) -> - case Name /= 'Failed-AVP' andalso M andalso is_strict() of + NF = Name /= 'Failed-AVP' andalso not is_failed(), + %% Not testing just Name /= 'Failed-AVP' means we're changing the + %% packing of AVPs nested within Failed-AVP, but the point of + %% ignoring errors within Failed-AVP is to decode as much as + %% possible, and failing because a mandatory AVP couldn't be + %% packed into a dedicated field defeats that point. Note that we + %% can't just test not is_failed() since this will be 'true' when + %% packing an unknown AVP directly within Failed-AVP. + case NF andalso M andalso is_strict() of true -> 0; false -> diff --git a/lib/diameter/src/base/diameter_codec.erl b/lib/diameter/src/base/diameter_codec.erl index 84139d7f5e..06a4f5de64 100644 --- a/lib/diameter/src/base/diameter_codec.erl +++ b/lib/diameter/src/base/diameter_codec.erl @@ -237,7 +237,7 @@ rec2msg(Mod, Rec) -> %% Unsuccessfully decoded AVPs will be placed in #diameter_packet.errors. --spec decode(module(), #diameter_packet{} | bitstring()) +-spec decode(module(), #diameter_packet{} | binary()) -> #diameter_packet{}. decode(Mod, Pkt) -> @@ -271,7 +271,7 @@ decode(_, Mod, #diameter_packet{header = Hdr} = Pkt) -> decode_avps(MsgName, Mod, Pkt, collect_avps(Pkt)); decode(Id, Mod, Bin) - when is_bitstring(Bin) -> + when is_binary(Bin) -> decode(Id, Mod, #diameter_packet{header = decode_header(Bin), bin = Bin}). decode_avps(MsgName, Mod, Pkt, {E, Avps}) -> @@ -298,7 +298,7 @@ decode_avps(MsgName, Mod, Pkt, Avps) -> %% ... or not %%% # decode_header/1 %%% --------------------------------------------------------------------------- --spec decode_header(bitstring()) +-spec decode_header(binary()) -> #diameter_header{} | false. @@ -309,7 +309,7 @@ decode_header(<<Version:8, ApplicationId:32, HopByHopId:32, EndToEndId:32, - _/bitstring>>) -> + _/binary>>) -> <<R:1, P:1, E:1, T:1, _:4>> = CmdFlags, %% 3588 (ch 3) says that reserved bits MUST be set to 0 and ignored @@ -422,7 +422,7 @@ msg_id(#diameter_header{application_id = A, is_request = R}) -> {A, C, if R -> 1; true -> 0 end}; -msg_id(<<_:32, Rbit:1, _:7, CmdCode:24, ApplId:32, _/bitstring>>) -> +msg_id(<<_:32, Rbit:1, _:7, CmdCode:24, ApplId:32, _/binary>>) -> {ApplId, CmdCode, Rbit}. %%% --------------------------------------------------------------------------- @@ -433,17 +433,18 @@ msg_id(<<_:32, Rbit:1, _:7, CmdCode:24, ApplId:32, _/bitstring>>) -> %% order in the binary. Note also that grouped avp's aren't unraveled, %% only those at the top level. --spec collect_avps(#diameter_packet{} | bitstring()) +-spec collect_avps(#diameter_packet{} | binary()) -> [Avp] | {Error, [Avp]} when Avp :: #diameter_avp{}, Error :: {5014, #diameter_avp{}}. collect_avps(#diameter_packet{bin = Bin}) -> - <<_:20/binary, Avps/bitstring>> = Bin, + <<_:20/binary, Avps/binary>> = Bin, collect_avps(Avps); -collect_avps(Bin) -> +collect_avps(Bin) + when is_binary(Bin) -> collect_avps(Bin, 0, []). collect_avps(<<>>, _, Acc) -> @@ -473,7 +474,9 @@ collect_avps(Bin, N, Acc) -> split_avp(Bin) -> {Code, V, M, P, Len, HdrLen} = split_head(Bin), - {Data, B} = split_data(Bin, HdrLen, Len - HdrLen), + + <<_:HdrLen/binary, Rest/binary>> = Bin, + {Data, B} = split_data(Rest, Len - HdrLen), {B, #diameter_avp{code = Code, vendor_id = V, @@ -483,17 +486,15 @@ split_avp(Bin) -> %% split_head/1 -split_head(<<Code:32, 1:1, M:1, P:1, _:5, Len:24, V:32, _/bitstring>>) -> +split_head(<<Code:32, 1:1, M:1, P:1, _:5, Len:24, V:32, _/binary>>) -> {Code, V, M, P, Len, 12}; -split_head(<<Code:32, 0:1, M:1, P:1, _:5, Len:24, _/bitstring>>) -> +split_head(<<Code:32, 0:1, M:1, P:1, _:5, Len:24, _/binary>>) -> {Code, undefined, M, P, Len, 8}; -%% Header is truncated: pack_avp/1 will pad to the minimum header -%% length. -split_head(B) - when is_bitstring(B) -> - ?THROW({5014, #diameter_avp{data = B}}). +%% Header is truncated. +split_head(Bin) -> + ?THROW({5014, #diameter_avp{data = Bin}}). %% 3588: %% @@ -528,34 +529,27 @@ split_head(B) %% split_data/3 -split_data(Bin, HdrLen, Len) - when 0 =< Len -> - split_data(Bin, HdrLen, Len, (4 - (Len rem 4)) rem 4); - -split_data(_, _, _) -> - invalid_avp_length(). +split_data(Bin, Len) -> + Pad = (4 - (Len rem 4)) rem 4, -%% split_data/4 + %% Len might be negative here, but that ensures the failure of the + %% binary match. -split_data(Bin, HdrLen, Len, Pad) -> case Bin of - <<_:HdrLen/binary, Data:Len/binary, _:Pad/binary, Rest/bitstring>> -> + <<Data:Len/binary, _:Pad/binary, Rest/binary>> -> {Data, Rest}; _ -> - invalid_avp_length() + %% Header length points past the end of the message. As + %% stated in the 6733 text above, it's sufficient to + %% return a zero-filled minimal payload if this is a + %% request. Do this (in cases that we know the type) by + %% inducing a decode failure and letting the dictionary's + %% decode (in diameter_gen) deal with it. Here we don't + %% know type. If the type isn't known, then the decode + %% just strips the extra bit. + {<<0:1, Bin/binary>>, <<>>} end. -%% invalid_avp_length/0 -%% -%% AVP Length doesn't mesh with payload. Induce a decode error by -%% returning a payload that no valid Diameter type can have. This is -%% so that a known AVP will result in 5014 error with a zero'd -%% payload. Here we simply don't know how to construct this payload. -%% (Yes, this solution is an afterthought.) - -invalid_avp_length() -> - {<<0:1>>, <<>>}. - %%% --------------------------------------------------------------------------- %%% # pack_avp/1 %%% --------------------------------------------------------------------------- @@ -587,17 +581,23 @@ pack_avp(#diameter_avp{data = {Dict, Name, Value}} = A) -> {Name, Type} = Dict:avp_name(Code, Vid), pack_avp(A#diameter_avp{data = {Hdr, {Type, Value}}}); +%% ... with a truncated header ... pack_avp(#diameter_avp{code = undefined, data = B}) - when is_bitstring(B) -> + when is_binary(B) -> %% Reset the AVP Length of an AVP Header resulting from a 5014 %% error. The RFC doesn't explicitly say to do this but the %% receiver can't correctly extract this and following AVP's %% without a correct length. On the downside, the header doesn't %% reveal if the received header has been padded. Pad = 8*header_length(B) - bit_size(B), - Len = size(<<H:5/binary, _:24, T/binary>> = <<B/bitstring, 0:Pad>>), + Len = size(<<H:5/binary, _:24, T/binary>> = <<B/binary, 0:Pad>>), <<H/binary, Len:24, T/binary>>; +%% ... from a dictionary compiled against old code in diameter_gen ... +%% ... when ignoring errors in Failed-AVP ... +pack_avp(#diameter_avp{data = <<0:1, B/binary>>} = A) -> + pack_avp(A#diameter_avp{data = B}); + %% ... or as an iolist. pack_avp(#diameter_avp{code = Code, vendor_id = V, diff --git a/lib/diameter/src/base/diameter_peer_fsm.erl b/lib/diameter/src/base/diameter_peer_fsm.erl index 58166349f0..31e570ae20 100644 --- a/lib/diameter/src/base/diameter_peer_fsm.erl +++ b/lib/diameter/src/base/diameter_peer_fsm.erl @@ -687,8 +687,6 @@ ans('DPR') -> 'DPA'. eval([F|A], S) -> apply(F, A ++ [S]); -eval(ok, S) -> - S; eval(T, _) -> close(T). @@ -752,8 +750,8 @@ cea(CEA, RC, Dict0) -> post('CER' = T, RC, Pkt, S) -> {T, caps(S), {RC, Pkt}}; -post('DPR', _, _, _) -> - ok. +post('DPR' = T, _, _, #state{parent = Pid}) -> + [fun(S) -> Pid ! {T, self()}, S end]. rejected({capabilities_cb, _F, Reason}, T, S) -> rejected(Reason, T, S); diff --git a/lib/diameter/src/base/diameter_watchdog.erl b/lib/diameter/src/base/diameter_watchdog.erl index 4616c675ff..eff5096745 100644 --- a/lib/diameter/src/base/diameter_watchdog.erl +++ b/lib/diameter/src/base/diameter_watchdog.erl @@ -328,6 +328,11 @@ transition({shutdown = T, Pid, Reason}, #watchdog{parent = Pid, send(TPid, {T, self(), Reason}), S#watchdog{shutdown = true}; +%% Transport is telling us that DPA has been sent in response to DPR: +%% its death should lead to ours. +transition({'DPR', TPid}, #watchdog{transport = TPid} = S) -> + S#watchdog{shutdown = true}; + %% Parent process has died, transition({'DOWN', _, process, Pid, _Reason}, #watchdog{parent = Pid}) -> @@ -399,7 +404,7 @@ transition({open = Key, TPid, _Hosts, T}, %% REOPEN Connection down CloseConnection() %% SetWatchdog() DOWN -%% Transport has died after service requested termination ... +%% Transport has died after DPA or service requested termination ... transition({'DOWN', _, process, TPid, _Reason}, #watchdog{transport = TPid, shutdown = true}) -> diff --git a/lib/diameter/src/transport/diameter_sctp.erl b/lib/diameter/src/transport/diameter_sctp.erl index d0a01351f3..32e7aaca39 100644 --- a/lib/diameter/src/transport/diameter_sctp.erl +++ b/lib/diameter/src/transport/diameter_sctp.erl @@ -616,6 +616,8 @@ send(#diameter_packet{bin = Bin, transport_data = {outstream, SId}}, S; %% ... or not: rotate through all streams. +send(#diameter_packet{bin = Bin}, S) -> + send(Bin, S); send(Bin, #transport{streams = {_, OS}, os = N} = S) diff --git a/lib/diameter/test/diameter_examples_SUITE.erl b/lib/diameter/test/diameter_examples_SUITE.erl index 02c8d34361..aef4bc35ef 100644 --- a/lib/diameter/test/diameter_examples_SUITE.erl +++ b/lib/diameter/test/diameter_examples_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2013. All Rights Reserved. +%% Copyright Ericsson AB 2013-2014. 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 @@ -24,7 +24,10 @@ -module(diameter_examples_SUITE). -export([suite/0, - all/0]). + all/0, + groups/0, + init_per_group/2, + end_per_group/2]). %% testcases -export([dict/1, dict/0, @@ -46,7 +49,7 @@ %% The order here is significant and causes the server to listen %% before the clients connect. --define(NODES, [compile, server, client]). +-define(NODES, [server, client]). %% Options to ct_slave:start/2. -define(TIMEOUTS, [{T, 15000} || T <- [boot_timeout, @@ -63,6 +66,9 @@ %% Common dictionaries to inherit from examples. -define(DICT0, [rfc3588_base, rfc6733_base]). +%% Transport protocols over which the example Diameter nodes are run. +-define(PROTS, [tcp, sctp]). + %% =========================================================================== suite() -> @@ -71,7 +77,34 @@ suite() -> all() -> [dict, code, - slave, + {group, all}]. + +groups() -> + Tc = tc(), + [{all, [parallel], [{group, P} || P <- ?PROTS]} + | [{P, [], Tc} || P <- ?PROTS]]. + +init_per_group(all, Config) -> + Config; + +init_per_group(tcp = N, Config) -> + [{group, N} | Config]; + +init_per_group(sctp = N, Config) -> + case gen_sctp:open() of + {ok, Sock} -> + gen_sctp:close(Sock), + [{group, N} | Config]; + {error, E} when E == eprotonosupport; + E == esocktnosupport -> %% fail on any other reason + {skip, no_sctp} + end. + +end_per_group(_, _) -> + ok. + +tc() -> + [slave, enslave, start, traffic, @@ -88,7 +121,7 @@ dict() -> dict(_Config) -> Dirs = [filename:join(H ++ ["examples", "dict"]) || H <- [[code:lib_dir(diameter)], [here(), ".."]]], - [] = [{F,D,RC} || {_,F} <- sort(find_files(Dirs, ".*\\.dia")), + [] = [{F,D,RC} || {_,F} <- sort(find_files(Dirs, ".*\\.dia$")), D <- ?DICT0, RC <- [make(F,D)], RC /= ok]. @@ -184,17 +217,18 @@ make_name(Dict) -> %% Compile example code under examples/code. code(Config) -> - Node = slave(hd(?NODES), here()), + Node = slave(compile, here()), [] = rpc:call(Node, ?MODULE, install, - [proplists:get_value(priv_dir, Config)]). + [proplists:get_value(priv_dir, Config)]), + {ok, Node} = ct_slave:stop(compile). %% Compile on another node since the code path may be modified. install(PrivDir) -> Top = install(here(), PrivDir), Src = filename:join([Top, "examples", "code"]), - Files = find_files([Src], ".*\\.erl"), + Files = find_files([Src], ".*\\.erl$"), [] = [{F,E} || {_,F} <- Files, {error, _, _} = E <- [compile:file(F, [warnings_as_errors, return_errors])]]. @@ -226,7 +260,7 @@ install(Dir, PrivDir) -> Inc = filename:join([Top, "include"]), Gen = filename:join([Top, "src", "gen"]), - Files = find_files([Inc, Gen], ".*\\.hrl"), + Files = find_files([Inc, Gen], ".*\\.hrl$"), [] = [{F,E} || {_,F} <- Files, B <- [filename:basename(F)], D <- [filename:join([TmpInc, B])], @@ -280,9 +314,10 @@ now_diff(_) -> %% Start two nodes: one for the server, one for the client. enslave(Config) -> + Prot = proplists:get_value(group, Config), Dir = here(), - Nodes = [{N, slave(N, Dir)} || N <- tl(?NODES)], - ?util:write_priv(Config, nodes, Nodes). + Nodes = [{S, slave(N, Dir)} || S <- ?NODES, N <- [concat(Prot, S)]], + ?util:write_priv(Config, Prot, Nodes). slave(Name, Dir) -> {ok, Node} = ct_slave:start(Name, ?TIMEOUTS), @@ -292,6 +327,9 @@ slave(Name, Dir) -> [[Dir, filename:join([Dir, "..", "ebin"])]]), Node. +concat(Prot, Svc) -> + list_to_atom(atom_to_list(Prot) ++ atom_to_list(Svc)). + here() -> filename:dirname(code:which(?MODULE)). @@ -304,24 +342,25 @@ top(Dir, LibDir) -> %% start/1 -start(server) -> +start({server, Prot}) -> ok = diameter:start(), ok = server:start(), - {ok, Ref} = server:listen(tcp), - [_] = ?util:lport(tcp, Ref), + {ok, Ref} = server:listen(Prot), + [_] = ?util:lport(Prot, Ref), ok; -start(client) -> +start({client = Svc, Prot}) -> ok = diameter:start(), - true = diameter:subscribe(client), + true = diameter:subscribe(Svc), ok = client:start(), - {ok, Ref} = client:connect(tcp), + {ok, Ref} = client:connect(Prot), receive #diameter_event{info = {up, Ref, _, _, _}} -> ok end; start(Config) -> - Nodes = ?util:read_priv(Config, nodes), + Prot = proplists:get_value(group, Config), + Nodes = ?util:read_priv(Config, Prot), [] = [RC || {T,N} <- Nodes, - RC <- [rpc:call(N, ?MODULE, start, [T])], + RC <- [rpc:call(N, ?MODULE, start, [{T, Prot}])], RC /= ok]. %% traffic/1 @@ -336,7 +375,8 @@ traffic(client) -> receive {'DOWN', MRef, process, _, Reason} -> Reason end; traffic(Config) -> - Nodes = ?util:read_priv(Config, nodes), + Prot = proplists:get_value(group, Config), + Nodes = ?util:read_priv(Config, Prot), [] = [RC || {T,N} <- Nodes, RC <- [rpc:call(N, ?MODULE, traffic, [T])], RC /= ok]. @@ -355,5 +395,6 @@ stop(Name) {ok, _Node} = ct_slave:stop(Name), ok; -stop(_Config) -> - [] = [RC || N <- ?NODES, RC <- [stop(N)], RC /= ok]. +stop(Config) -> + Prot = proplists:get_value(group, Config), + [] = [RC || N <- ?NODES, RC <- [stop(concat(Prot, N))], RC /= ok]. diff --git a/lib/diameter/test/diameter_traffic_SUITE.erl b/lib/diameter/test/diameter_traffic_SUITE.erl index a97c54fc04..4b67372016 100644 --- a/lib/diameter/test/diameter_traffic_SUITE.erl +++ b/lib/diameter/test/diameter_traffic_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2010-2013. All Rights Reserved. +%% Copyright Ericsson AB 2010-2014. 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 @@ -43,7 +43,9 @@ send_protocol_error/1, send_arbitrary/1, send_unknown/1, + send_unknown_short/1, send_unknown_mandatory/1, + send_unknown_short_mandatory/1, send_noreply/1, send_unsupported/1, send_unsupported_app/1, @@ -54,7 +56,8 @@ send_zero_avp_length/1, send_invalid_avp_length/1, send_invalid_reject/1, - send_unrecognized_mandatory/1, + send_unexpected_mandatory_decode/1, + send_unexpected_mandatory/1, send_long/1, send_nopeer/1, send_noapp/1, @@ -266,7 +269,9 @@ tc() -> send_protocol_error, send_arbitrary, send_unknown, + send_unknown_short, send_unknown_mandatory, + send_unknown_short_mandatory, send_noreply, send_unsupported, send_unsupported_app, @@ -277,7 +282,8 @@ tc() -> send_zero_avp_length, send_invalid_avp_length, send_invalid_reject, - send_unrecognized_mandatory, + send_unexpected_mandatory_decode, + send_unexpected_mandatory, send_long, send_nopeer, send_noapp, @@ -447,6 +453,24 @@ send_unknown(Config) -> data = <<17>>}]} = lists:last(Avps). +%% Ditto, and point the AVP length past the end of the message. Expect +%% 5014. +send_unknown_short(Config) -> + send_unknown_short(Config, false, ?INVALID_AVP_LENGTH). + +send_unknown_short(Config, M, RC) -> + Req = ['ASR', {'AVP', [#diameter_avp{code = 999, + is_mandatory = M, + data = <<17>>}]}], + ['ASA', _SessionId, {'Result-Code', RC} | Avps] + = call(Config, Req), + [#'diameter_base_Failed-AVP'{'AVP' = As}] + = proplists:get_value('Failed-AVP', Avps), + [#diameter_avp{code = 999, + is_mandatory = M, + data = <<17, _/binary>>}] %% extra bits from padding + = As. + %% Ditto but set the M flag. send_unknown_mandatory(Config) -> Req = ['ASR', {'AVP', [#diameter_avp{code = 999, @@ -461,6 +485,27 @@ send_unknown_mandatory(Config) -> data = <<17>>}] = As. +%% Ditto, and point the AVP length past the end of the message. Expect +%% 5014 instead of 5001. +send_unknown_short_mandatory(Config) -> + send_unknown_short(Config, true, ?INVALID_AVP_LENGTH). + +%% Send an ACR containing an unexpected mandatory Session-Timeout. +%% Expect 5001, and check that the value in Failed-AVP was decoded. +send_unexpected_mandatory_decode(Config) -> + Req = ['ASR', {'AVP', [#diameter_avp{code = 27, %% Session-Timeout + is_mandatory = true, + data = <<12:32>>}]}], + ['ASA', _SessionId, {'Result-Code', ?AVP_UNSUPPORTED} | Avps] + = call(Config, Req), + [#'diameter_base_Failed-AVP'{'AVP' = As}] + = proplists:get_value('Failed-AVP', Avps), + [#diameter_avp{code = 27, + is_mandatory = true, + value = 12, + data = <<12:32>>}] + = As. + %% Send an STR that the server ignores. send_noreply(Config) -> Req = ['STR', {'Termination-Cause', ?BAD_ANSWER}], @@ -527,9 +572,9 @@ send_invalid_reject(Config) -> ?answer_message(?TOO_BUSY) = call(Config, Req). -%% Send an STR containing a known AVP, but one that's not allowed and -%% sets the M-bit. -send_unrecognized_mandatory(Config) -> +%% Send an STR containing a known AVP, but one that's not expected and +%% that sets the M-bit. +send_unexpected_mandatory(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}], ['STA', _SessionId, {'Result-Code', ?AVP_UNSUPPORTED} | _] @@ -836,6 +881,26 @@ log(#diameter_packet{bin = Bin} = P, T) %% prepare/4 prepare(Pkt, Caps, N, #group{client_dict0 = Dict0} = Group) + when N == send_unknown_short_mandatory; + N == send_unknown_short -> + Req = prepare(Pkt, Caps, Group), + + #diameter_packet{header = #diameter_header{length = L}, + bin = Bin} + = E + = diameter_codec:encode(Dict0, Pkt#diameter_packet{msg = Req}), + + %% Find the unknown AVP data at the end of the message and alter + %% its length header. + + {Padding, [17|_]} = lists:splitwith(fun(C) -> C == 0 end, + lists:reverse(binary_to_list(Bin))), + + Offset = L - length(Padding) - 4, + <<H:Offset/binary, Len:24, T/binary>> = Bin, + E#diameter_packet{bin = <<H/binary, (Len+9):24, T/binary>>}; + +prepare(Pkt, Caps, N, #group{client_dict0 = Dict0} = Group) when N == send_long_avp_length; N == send_short_avp_length; N == send_zero_avp_length -> @@ -876,8 +941,8 @@ prepare(Pkt, Caps, N, #group{client_dict0 = Dict0} = Group) <<V, L:24, H/binary>> = H0, %% assert E#diameter_packet{bin = <<V, (L+4):24, H/binary, 16:24, 0:32, T/binary>>}; -prepare(Pkt, Caps, send_unrecognized_mandatory, #group{client_dict0 = Dict0} - = Group) -> +prepare(Pkt, Caps, send_unexpected_mandatory, #group{client_dict0 = Dict0} + = Group) -> Req = prepare(Pkt, Caps, Group), #diameter_packet{bin = <<V, Len:24, T/binary>>} = E @@ -997,7 +1062,9 @@ answer(Rec, [_|_], N) N == send_short_avp_length; N == send_zero_avp_length; N == send_invalid_avp_length; - N == send_invalid_reject -> + N == send_invalid_reject; + N == send_unknown_short_mandatory; + N == send_unexpected_mandatory_decode -> Rec; answer(Rec, [], _) -> Rec. |