diff options
Diffstat (limited to 'lib/diameter/test/diameter_traffic_SUITE.erl')
| -rw-r--r-- | lib/diameter/test/diameter_traffic_SUITE.erl | 1159 |
1 files changed, 830 insertions, 329 deletions
diff --git a/lib/diameter/test/diameter_traffic_SUITE.erl b/lib/diameter/test/diameter_traffic_SUITE.erl index 4c82d4dee2..c224f9a27e 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 2010-2016. All Rights Reserved. +%% Copyright Ericsson AB 2010-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -20,6 +20,7 @@ %% %% Tests of traffic between two Diameter nodes, one client, one server. +%% The traffic isn't meant to be sensible, just to exercise code. %% -module(diameter_traffic_SUITE). @@ -27,13 +28,18 @@ -export([suite/0, all/0, groups/0, + init_per_suite/0, + init_per_suite/1, + end_per_suite/1, + init_per_group/1, init_per_group/2, end_per_group/2, init_per_testcase/2, end_per_testcase/2]). %% testcases --export([start/1, +-export([rfc4005/1, + start/1, start_services/1, add_transports/1, result_codes/1, @@ -44,6 +50,7 @@ send_protocol_error/1, send_experimental_result/1, send_arbitrary/1, + send_proxy_info/1, send_unknown/1, send_unknown_short/1, send_unknown_mandatory/1, @@ -61,6 +68,7 @@ send_invalid_reject/1, send_unexpected_mandatory_decode/1, send_unexpected_mandatory/1, + send_too_many/1, send_long/1, send_maxlen/1, send_nopeer/1, @@ -90,21 +98,25 @@ send_multiple_filters_2/1, send_multiple_filters_3/1, send_anything/1, - outstanding/1, remove_transports/1, empty/1, stop_services/1, stop/1]). %% diameter callbacks --export([peer_up/3, - peer_down/3, - pick_peer/6, pick_peer/7, - prepare_request/5, prepare_request/6, - prepare_retransmit/5, - handle_answer/6, handle_answer/7, - handle_error/6, - handle_request/3]). +-export([peer_up/4, + peer_down/4, + pick_peer/7, pick_peer/8, + prepare_request/6, prepare_request/7, + prepare_retransmit/6, + handle_answer/7, handle_answer/8, + handle_error/7, + handle_request/4]). + +%% diameter_{tcp,sctp} callbacks +-export([message/3]). + +-include_lib("kernel/include/inet_sctp.hrl"). -include("diameter.hrl"). -include("diameter_gen_base_rfc3588.hrl"). @@ -115,13 +127,22 @@ %% =========================================================================== +%% Fraction of shuffle/parallel groups to randomly skip. +-define(SKIP, 0.25). + +%% Positive number of testcases from which to select (randomly) from +%% tc(), the list of testcases to run, or [] to run all. The random +%% selection is to limit the time it takes for the suite to run. +-define(LIMIT, #{tcp => 42, sctp => 5}). + -define(util, diameter_util). -define(A, list_to_atom). -define(L, atom_to_list). +-define(B, iolist_to_binary). %% Don't use is_record/2 since dictionary hrl's aren't included. -%% (Since they define conflicting reqcords with the same names.) +%% (Since they define conflicting records with the same names.) -define(is_record(Rec, Name), (Name == element(1, Rec))). -define(ADDR, {127,0,0,1}). @@ -134,32 +155,39 @@ %% Sequence mask for End-to-End and Hop-by-Hop identifiers. -define(CLIENT_MASK, {1,26}). %% 1 in top 6 bits -%% How to construct messages, as record or list. --define(ENCODINGS, [list, record]). +%% How to construct outgoing messages. +-define(ENCODINGS, [list, record, map]). -%% How to send answers, in a diameter_packet or not. --define(CONTAINERS, [pkt, msg]). +%% How to decode incoming messages. +-define(DECODINGS, [record, none, map, list, record_from_map]). -%% Which common dictionary to use in the clients. --define(RFCS, [rfc3588, rfc6733]). +%% Which dictionary to use in the clients. +-define(RFCS, [rfc3588, rfc6733, rfc4005]). %% Whether to decode stringish Diameter types to strings, or leave %% them as binary. --define(STRING_DECODES, [true, false]). +-define(STRING_DECODES, [false, true]). %% Which transport protocol to use. -define(TRANSPORTS, [tcp, sctp]). +%% Send from a dedicated process? +-define(SENDERS, [true, false]). + +%% Message callbacks from diameter_{tcp,sctp}? +-define(CALLBACKS, [true, false]). + -record(group, {transport, + strings, + encoding, client_service, - client_encoding, - client_dict0, - client_strings, + client_dict, + client_sender, server_service, - server_encoding, - server_container, - server_strings}). + server_decoding, + server_sender, + server_throttle}). %% Not really what we should be setting unless the message is sent in %% the common application but diameter doesn't care. @@ -170,35 +198,37 @@ %% A common match when receiving answers in a client. -define(answer_message(SessionId, ResultCode), - ['answer-message', - {'Session-Id', SessionId}, - {'Origin-Host', _}, - {'Origin-Realm', _}, - {'Result-Code', ResultCode} - | _]). + ['answer-message' | #{'Session-Id' := SessionId, + 'Origin-Host' := _, + 'Origin-Realm' := _, + 'Result-Code' := ResultCode}]). -define(answer_message(ResultCode), - ?answer_message(_, ResultCode)). + ['answer-message' | #{'Origin-Host' := _, + 'Origin-Realm' := _, + 'Result-Code' := ResultCode}]). %% Config for diameter:start_service/2. --define(SERVICE(Name, Decode), +-define(SERVICE(Name, Grp), [{'Origin-Host', Name ++ "." ++ ?REALM}, {'Origin-Realm', ?REALM}, {'Host-IP-Address', [?ADDR]}, {'Vendor-Id', 12345}, {'Product-Name', "OTP/diameter"}, - {'Auth-Application-Id', [?DIAMETER_APP_ID_COMMON]}, - {'Acct-Application-Id', [?DIAMETER_APP_ID_ACCOUNTING]}, + {'Auth-Application-Id', [0]}, %% common messages + {'Acct-Application-Id', [3]}, %% base accounting {restrict_connections, false}, - {string_decode, Decode}, - {incoming_maxlen, 1 bsl 21}, - {spawn_opt, [{min_heap_size, 5000}]} + {string_decode, Grp#group.strings}, + {avp_dictionaries, [diameter_gen_doic_rfc7683]}, + {incoming_maxlen, 1 bsl 21} | [{application, [{dictionary, D}, - {module, ?MODULE}, + {module, [?MODULE, Grp]}, {answer_errors, callback}]} || D <- [diameter_gen_base_rfc3588, diameter_gen_base_accounting, diameter_gen_base_rfc6733, - diameter_gen_acct_rfc6733]]]). + diameter_gen_acct_rfc6733, + nas4005], + D /= nas4005 orelse have_nas()]]). -define(SUCCESS, ?'DIAMETER_BASE_RESULT-CODE_SUCCESS'). @@ -216,6 +246,8 @@ ?'DIAMETER_BASE_RESULT-CODE_AVP_UNSUPPORTED'). -define(UNSUPPORTED_VERSION, ?'DIAMETER_BASE_RESULT-CODE_UNSUPPORTED_VERSION'). +-define(TOO_MANY, + ?'DIAMETER_BASE_RESULT-CODE_AVP_OCCURS_TOO_MANY_TIMES'). -define(REALM_NOT_SERVED, ?'DIAMETER_BASE_RESULT-CODE_REALM_NOT_SERVED'). -define(UNABLE_TO_DELIVER, @@ -243,76 +275,169 @@ suite() -> [{timetrap, {seconds, 10}}]. all() -> - [start, result_codes, {group, traffic}, outstanding, empty, stop]. + [rfc4005, start, result_codes, {group, traffic}, empty, stop]. + +%% Redefine this to run one or more groups for debugging purposes. +-define(GROUPS, []). +%-define(GROUPS, [[tcp,rfc6733,record,map,false,false,false,false]]). +%% Issues with gen_sctp sporadically cause huge numbers of failed +%% testcases when running testcases in parallel. groups() -> - Ts = tc(), - Sctp = ?util:have_sctp(), - [{B, [P], Ts} || {B,P} <- [{true, shuffle}, {false, parallel}]] + Names = names(), + [{P, [P], Ts} || Ts <- [tc()], P <- [shuffle, parallel]] ++ - [{?util:name([T,R,D,A,C,SD,CD]), - [], - [start_services, - add_transports, - result_codes, - {group, SD orelse CD}, - remove_transports, - stop_services]} - || T <- ?TRANSPORTS, - T /= sctp orelse Sctp, - R <- ?ENCODINGS, - D <- ?RFCS, - A <- ?ENCODINGS, - C <- ?CONTAINERS, - SD <- ?STRING_DECODES, - CD <- ?STRING_DECODES] + [{?util:name(N), [], [{group, if T == sctp; S -> shuffle; + true -> parallel end}]} + || [T,_,_,_,S|_] = N <- Names] ++ - [{traffic, [], [{group, ?util:name([T,R,D,A,C,SD,CD])} - || T <- ?TRANSPORTS, - T /= sctp orelse Sctp, - R <- ?ENCODINGS, - D <- ?RFCS, - A <- ?ENCODINGS, - C <- ?CONTAINERS, - SD <- ?STRING_DECODES, - CD <- ?STRING_DECODES]}]. + [{T, [], [{group, ?util:name(N)} || N <- names(Names, ?GROUPS), + T == hd(N)]} + || T <- ?TRANSPORTS] + ++ + [{traffic, [], [{group, T} || T <- ?TRANSPORTS]}]. + +names() -> + [[T,R,E,D,S,ST,SS,CS] || T <- ?TRANSPORTS, + R <- ?RFCS, + E <- ?ENCODINGS, + D <- ?DECODINGS, + S <- ?STRING_DECODES, + ST <- ?CALLBACKS, + SS <- ?SENDERS, + CS <- ?SENDERS]. + +names(Names, []) -> + [N || N <- Names, + [CS,SS|_] <- [lists:reverse(N)], + SS orelse CS]; %% avoid deadlock + +names(_, Names) -> + Names. + +%% -------------------- + +init_per_suite() -> + [{timetrap, {seconds, 60}}]. + +init_per_suite(Config) -> + [{rfc4005, compile_and_load()}, {sctp, ?util:have_sctp()} | Config]. + +end_per_suite(_Config) -> + code:delete(nas4005), + code:purge(nas4005), + ok. + +%% -------------------- + +init_per_group(_) -> + [{timetrap, {seconds, 30}}]. + +init_per_group(Name, Config) + when Name == shuffle; + Name == parallel -> + case rand:uniform() < ?SKIP of + true -> + {skip, random}; + false -> + start_services(Config), + add_transports(Config), + replace({sleep, Name == parallel}, Config) + end; + +init_per_group(sctp = Name, Config) -> + {_, Sctp} = lists:keyfind(Name, 1, Config), + if Sctp -> + Config; + true -> + {skip, Name} + end; init_per_group(Name, Config) -> + Nas = proplists:get_value(rfc4005, Config, false), case ?util:name(Name) of - [T,R,D,A,C,SD,CD] -> + [_,R,_,_,_,_,_,_] when R == rfc4005, true /= Nas -> + {skip, rfc4005}; + [T,R,E,D,S,ST,SS,CS] -> G = #group{transport = T, + strings = S, + encoding = E, client_service = [$C|?util:unique_string()], - client_encoding = R, - client_dict0 = dict0(D), - client_strings = CD, + client_dict = appdict(R), + client_sender = CS, server_service = [$S|?util:unique_string()], - server_encoding = A, - server_container = C, - server_strings = SD}, - [{group, G} | Config]; + server_decoding = D, + server_sender = SS, + server_throttle = ST}, + replace([{group, G}, {runlist, select(T)}], Config); _ -> Config end. +end_per_group(Name, Config) + when Name == shuffle; + Name == parallel -> + remove_transports(Config), + stop_services(Config); + end_per_group(_, _) -> ok. +select(T) -> + try maps:get(T, ?LIMIT) of + N -> + lists:sublist(?util:scramble(tc()), max(5, rand:uniform(N))) + catch + error:_ -> ?LIMIT + end. + +%% -------------------- + +%% Work around common_test accumulating Config improperly, causing +%% testcases to get Config from groups and suites they're not in. +init_per_testcase(N, Config) + when N == rfc4005; + N == start; + N == result_codes; + N == empty; + N == stop -> + Config; + %% Skip testcases that can reasonably fail under SCTP. init_per_testcase(Name, Config) -> - case [skip || #group{transport = sctp} - <- [proplists:get_value(group, Config)], - send_maxlen == Name - orelse send_long == Name] + TCs = proplists:get_value(runlist, Config, []), + Run = [] == TCs orelse lists:member(Name, TCs), + case [G || #group{transport = sctp} = G + <- [proplists:get_value(group, Config)]] of - [skip] -> + [_] when Name == send_maxlen; + Name == send_long -> {skip, sctp}; - [] -> + _ when not Run -> + {skip, random}; + _ -> + proplists:get_value(sleep, Config, false) + andalso timer:sleep(rand:uniform(200)), [{testcase, Name} | Config] end. end_per_testcase(_, _) -> ok. +%% replace/2 +%% +%% Work around common_test running init functions inappropriately, and +%% this accumulating more config than expected. + +replace(Pairs, Config) + when is_list(Pairs) -> + lists:foldl(fun replace/2, Config, Pairs); + +replace({Key, _} = T, Config) -> + [T | lists:keydelete(Key, 1, Config)]. + +%% -------------------- + %% Testcases to run when services are started and connections %% established. tc() -> @@ -323,6 +448,7 @@ tc() -> send_protocol_error, send_experimental_result, send_arbitrary, + send_proxy_info, send_unknown, send_unknown_short, send_unknown_mandatory, @@ -340,6 +466,7 @@ tc() -> send_invalid_reject, send_unexpected_mandatory_decode, send_unexpected_mandatory, + send_too_many, send_long, send_maxlen, send_nopeer, @@ -378,47 +505,87 @@ start(_Config) -> start_services(Config) -> #group{client_service = CN, - client_strings = CD, server_service = SN, - server_strings = SD} + server_decoding = SD} + = Grp = group(Config), - ok = diameter:start_service(SN, ?SERVICE(SN, SD)), - ok = diameter:start_service(CN, [{sequence, ?CLIENT_MASK} - | ?SERVICE(CN, CD)]). + ok = diameter:start_service(SN, [{traffic_counters, bool()}, + {decode_format, SD} + | ?SERVICE(SN, Grp)]), + ok = diameter:start_service(CN, [{traffic_counters, bool()}, + {sequence, ?CLIENT_MASK}, + {decode_format, map}, + {strict_arities, decode} + | ?SERVICE(CN, Grp)]). + +bool() -> + 0.5 =< rand:uniform(). add_transports(Config) -> #group{transport = T, + encoding = E, client_service = CN, - server_service = SN} - = group(Config), + client_sender = CS, + server_service = SN, + server_sender = SS, + server_throttle = ST} + = group(Config), LRef = ?util:listen(SN, - T, + [T, + {sender, SS}, + {message_cb, ST andalso {?MODULE, message, [0]}}] + ++ [{packet, hd(?util:scramble([false, raw]))} + || T == sctp andalso CS] + ++ [{unordered, unordered()} || T == sctp], [{capabilities_cb, fun capx/2}, - {pool_size, 8}, - {spawn_opt, [{min_heap_size, 8096}]}, - {applications, apps(rfc3588)}]), + {pool_size, 8} + | server_apps()] + ++ [{spawn_opt, {erlang, spawn, []}} || CS]), Cs = [?util:connect(CN, - T, + [T, {sender, CS} | client_opts(T)], LRef, - [{id, Id}, - {capabilities, [{'Origin-State-Id', origin(Id)}]}, - {applications, apps(D)}]) - || A <- ?ENCODINGS, - C <- ?CONTAINERS, - D <- ?RFCS, - Id <- [{A,C}]], - %% The server uses the client's Origin-State-Id to decide how to - %% answer. + [{id, Id} + | client_apps(R, [{'Origin-State-Id', origin(Id)}])]) + || D <- ?DECODINGS, %% for multiple candidate peers + R <- ?RFCS, + R /= rfc4005 orelse have_nas(), + Id <- [{D,E}]], ?util:write_priv(Config, "transport", [LRef | Cs]). -apps(D0) -> - D = dict0(D0), - [acct(D), D]. +unordered() -> + element(rand:uniform(4), {true, false, 1, 2}). + +client_opts(tcp) -> + []; +client_opts(sctp) -> + [{unordered, unordered()} + | [{sctp_initmsg, #sctp_initmsg{num_ostreams = N, + max_instreams = 5}} + || N <- [rand:uniform(8)], + N =< 6]]. + +server_apps() -> + B = have_nas(), + [{applications, [diameter_gen_base_rfc3588, + diameter_gen_base_accounting] + ++ [nas4005 || B]}, + {capabilities, [{'Auth-Application-Id', [0] ++ [1 || B]}, %% common, NAS + {'Acct-Application-Id', [3]}]}]. %% accounting + +client_apps(D, Caps) -> + if D == rfc4005 -> + [{applications, [nas4005]}, + {capabilities, [{'Auth-Application-Id', [1]}, %% NAS + {'Acct-Application-Id', []} + | Caps]}]; + true -> + D0 = dict0(D), + [{applications, [acct(D0), D0]}, + {capabilities, Caps}] + end. -%% Ensure there are no outstanding requests in request table. -outstanding(_Config) -> - [] = [T || T <- ets:tab2list(diameter_request), - is_atom(element(1,T))]. +have_nas() -> + false /= code:is_loaded(nas4005). remove_transports(Config) -> #group{client_service = CN, @@ -451,9 +618,16 @@ capx(_, #diameter_caps{origin_host = {OH,DH}}) -> %% =========================================================================== +%% Fail only this testcase if the RFC 4005 dictionary hasn't been +%% successfully compiled and loaded. +rfc4005(Config) -> + true = proplists:get_value(rfc4005, Config). + %% Ensure that result codes have the expected values. result_codes(_Config) -> - {2001, 3001, 3002, 3003, 3004, 3007, 3008, 3009, 5001, 5011, 5014} + {2001, + 3001, 3002, 3003, 3004, 3007, 3008, 3009, + 5001, 5009, 5011, 5014} = {?SUCCESS, ?COMMAND_UNSUPPORTED, ?UNABLE_TO_DELIVER, @@ -463,6 +637,7 @@ result_codes(_Config) -> ?INVALID_HDR_BITS, ?INVALID_AVP_BITS, ?AVP_UNSUPPORTED, + ?TOO_MANY, ?UNSUPPORTED_VERSION, ?INVALID_AVP_LENGTH}. @@ -470,8 +645,8 @@ result_codes(_Config) -> send_ok(Config) -> Req = ['ACR', {'Accounting-Record-Type', ?EVENT_RECORD}, {'Accounting-Record-Number', 1}], - - ['ACA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['ACA' | #{'Result-Code' := ?SUCCESS, + 'Session-Id' := _}] = call(Config, Req). %% Send an accounting ACR that the server answers badly to. @@ -487,7 +662,8 @@ send_eval(Config) -> Req = ['ACR', {'Accounting-Record-Type', ?EVENT_RECORD}, {'Accounting-Record-Number', 3}], - ['ACA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['ACA' | #{'Result-Code' := ?SUCCESS, + 'Session-Id' := _}] = call(Config, Req). %% Send an accounting ACR that the server tries to answer with an @@ -500,20 +676,87 @@ send_bad_answer(Config) -> = call(Config, Req). %% Send an ACR that the server callback answers explicitly with a -%% protocol error. +%% protocol error and some AVPs to check the decoding of. send_protocol_error(Config) -> Req = ['ACR', {'Accounting-Record-Type', ?EVENT_RECORD}, {'Accounting-Record-Number', 4}], - ?answer_message(?TOO_BUSY) - = call(Config, Req). + ['answer-message' | #{'Result-Code' := ?TOO_BUSY, + 'AVP' := [OLR | _]} = Avps] + = call(Config, Req), + + #diameter_avp{name = 'OC-OLR', + value = #{'OC-Sequence-Number' := 1, + 'OC-Report-Type' := 0, %% HOST_REPORT + 'OC-Reduction-Percentage' := [25], + 'OC-Validity-Duration' := [60], + 'AVP' := [OSF]}} + = OLR, + #diameter_avp{name = 'OC-Supported-Features', + value = #{} = Fs} + = OSF, + 0 = maps:size(Fs), + + #group{client_dict = D} = group(Config), + + if D == nas4005 -> + error = maps:find('Failed-AVP', Avps), + #{'AVP' := [_,Failed]} + = Avps, + #diameter_avp{name = 'Failed-AVP', + value = #{'AVP' := [NP,FR,AP]}} + = Failed, + #diameter_avp{name = 'NAS-Port', + value = 44} + = NP, + #diameter_avp{name = 'Firmware-Revision', + value = 12} + = FR, + #diameter_avp{name = 'Auth-Grace-Period', + value = 13} + = AP; + + D == diameter_gen_base_rfc3588; + D == diameter_gen_basr_accounting -> + error = maps:find('Failed-AVP', Avps), + #{'AVP' := [_,Failed]} + = Avps, + + #diameter_avp{name = 'Failed-AVP', + value = #{'AVP' := [NP,FR,AP]}} + = Failed, + #diameter_avp{name = undefined, + value = undefined} + = NP, + #diameter_avp{name = 'Firmware-Revision', + value = 12} + = FR, + #diameter_avp{name = 'Auth-Grace-Period', + value = 13} + = AP; + + D == diameter_gen_base_rfc6733; + D == diameter_gen_acct_rfc6733 -> + #{'Failed-AVP' := [#{'AVP' := [NP,FR,AP]}], + 'AVP' := [_]} + = Avps, + #diameter_avp{name = undefined, + value = undefined} + = NP, + #diameter_avp{name = 'Firmware-Revision', + value = 12} + = FR, + #diameter_avp{name = 'Auth-Grace-Period', + value = 13} + = AP + end. %% Send a 3xxx Experimental-Result in an answer not setting the E-bit %% and missing a Result-Code. send_experimental_result(Config) -> Req = ['ACR', {'Accounting-Record-Type', ?EVENT_RECORD}, {'Accounting-Record-Number', 5}], - ['ACA', {'Session-Id', _} | _] + ['ACA' | #{'Session-Id' := _}] = call(Config, Req). %% Send an ASR with an arbitrary non-mandatory AVP and expect success @@ -521,24 +764,37 @@ send_experimental_result(Config) -> send_arbitrary(Config) -> Req = ['ASR', {'AVP', [#diameter_avp{name = 'Product-Name', value = "XXX"}]}], - ['ASA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | Avps] + ['ASA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS, + 'AVP' := [#diameter_avp{name = 'Product-Name', + value = V}]}] = call(Config, Req), - {'AVP', [#diameter_avp{name = 'Product-Name', - value = V}]} - = lists:last(Avps), "XXX" = string(V, Config). +%% Send Proxy-Info in an ASR that the peer answers with 3xxx, and +%% ensure that the AVP is returned. +send_proxy_info(Config) -> + H0 = ?B(?util:unique_string()), + S0 = ?B(?util:unique_string()), + Req = ['ASR', {'Proxy-Info', #{'Proxy-Host' => H0, + 'Proxy-State' => S0}}], + ['answer-message' | #{'Result-Code' := 3999, + 'Proxy-Info' := [#{'Proxy-Host' := H, + 'Proxy-State' := S}]}] + = call(Config, Req), + [H0, S0] = [?B(X) || X <- [H,S]]. + %% Send an unknown AVP (to some client) and check that it comes back. send_unknown(Config) -> Req = ['ASR', {'AVP', [#diameter_avp{code = 999, is_mandatory = false, data = <<17>>}]}], - ['ASA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | Avps] - = call(Config, Req), - {'AVP', [#diameter_avp{code = 999, - is_mandatory = false, - data = <<17>>}]} - = lists:last(Avps). + ['ASA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS, + 'AVP' := [#diameter_avp{code = 999, + is_mandatory = false, + data = <<17>>}]}] + = call(Config, Req). %% Ditto, and point the AVP length past the end of the message. Expect %% 5014. @@ -549,28 +805,28 @@ send_unknown_short(Config, M, RC) -> Req = ['ASR', {'AVP', [#diameter_avp{code = 999, is_mandatory = M, data = <<17>>}]}], - ['ASA', {'Session-Id', _}, {'Result-Code', RC} | Avps] + ['ASA' | #{'Session-Id' := _, + 'Result-Code' := RC, + 'Failed-AVP' := [#{'AVP' := [Avp]}]}] = 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. + #diameter_avp{code = 999, + is_mandatory = M, + data = <<17, _/binary>>} %% extra bits from padding + = Avp. %% Ditto but set the M flag. send_unknown_mandatory(Config) -> Req = ['ASR', {'AVP', [#diameter_avp{code = 999, is_mandatory = true, data = <<17>>}]}], - ['ASA', {'Session-Id', _}, {'Result-Code', ?AVP_UNSUPPORTED} | Avps] + ['ASA' | #{'Session-Id' := _, + 'Result-Code' := ?AVP_UNSUPPORTED, + 'Failed-AVP' := [#{'AVP' := [Avp]}]}] = call(Config, Req), - [#'diameter_base_Failed-AVP'{'AVP' = As}] - = proplists:get_value('Failed-AVP', Avps), - [#diameter_avp{code = 999, - is_mandatory = true, - data = <<17>>}] - = As. + #diameter_avp{code = 999, + is_mandatory = true, + data = <<17>>} + = Avp. %% Ditto, and point the AVP length past the end of the message. Expect %% 5014 instead of 5001. @@ -583,15 +839,27 @@ send_unexpected_mandatory_decode(Config) -> Req = ['ASR', {'AVP', [#diameter_avp{code = 27, %% Session-Timeout is_mandatory = true, data = <<12:32>>}]}], - ['ASA', {'Session-Id', _}, {'Result-Code', ?AVP_UNSUPPORTED} | Avps] + ['ASA' | #{'Session-Id' := _, + 'Result-Code' := ?AVP_UNSUPPORTED, + 'Failed-AVP' := [#{'AVP' := [Avp]}]}] = 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. + #diameter_avp{code = 27, + is_mandatory = true, + value = 12, + data = <<12:32>>} + = Avp. + +%% Try to two Auth-Application-Id in ASR expect 5009. +send_too_many(Config) -> + Req = ['ASR', {'Auth-Application-Id', [?APP_ID, 44]}], + + ['ASA' | #{'Session-Id' := _, + 'Result-Code' := ?TOO_MANY, + 'Failed-AVP' := [#{'AVP' := [Avp]}]}] + = call(Config, Req), + #diameter_avp{name = 'Auth-Application-Id', + value = 44} + = Avp. %% Send an containing a faulty Grouped AVP (empty Proxy-Host in %% Proxy-Info) and expect that only the faulty AVP is sent in @@ -601,16 +869,13 @@ send_unexpected_mandatory_decode(Config) -> send_grouped_error(Config) -> Req = ['ASR', {'Proxy-Info', [[{'Proxy-Host', "abcd"}, {'Proxy-State', ""}]]}], - ['ASA', {'Session-Id', _}, {'Result-Code', ?INVALID_AVP_LENGTH} | Avps] + ['ASA' | #{'Session-Id' := _, + 'Result-Code' := ?INVALID_AVP_LENGTH, + 'Failed-AVP' := [#{'AVP' := [Avp]}]}] = call(Config, Req), - [#'diameter_base_Failed-AVP'{'AVP' = As}] - = proplists:get_value('Failed-AVP', Avps), - [#diameter_avp{name = 'Proxy-Info', - value = #'diameter_base_Proxy-Info' - {'Proxy-Host' = Empty, - 'Proxy-State' = undefined}}] - = As, - <<0>> = iolist_to_binary(Empty). + #diameter_avp{name = 'Proxy-Info', value = #{'Proxy-Host' := H}} + = Avp, + <<0>> = ?B(H). %% Send an STR that the server ignores. send_noreply(Config) -> @@ -638,7 +903,8 @@ send_error_bit(Config) -> %% Send a bad version and check that we get 5011. send_unsupported_version(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}], - ['STA', {'Session-Id', _}, {'Result-Code', ?UNSUPPORTED_VERSION} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?UNSUPPORTED_VERSION}] = call(Config, Req). %% Send a request containing an AVP length > data size. @@ -658,16 +924,11 @@ send_zero_avp_length(Config) -> send_invalid_avp_length(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}], - ['STA', {'Session-Id', _}, - {'Result-Code', ?INVALID_AVP_LENGTH}, - {'Origin-Host', _}, - {'Origin-Realm', _}, - {'User-Name', _}, - {'Class', _}, - {'Error-Message', _}, - {'Error-Reporting-Host', _}, - {'Failed-AVP', [#'diameter_base_Failed-AVP'{'AVP' = [_]}]} - | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?INVALID_AVP_LENGTH, + 'Origin-Host' := _, + 'Origin-Realm' := _, + 'Failed-AVP' := [#{'AVP' := [_]}]}] = call(Config, Req). %% Send a request containing 5xxx errors that the server rejects with @@ -683,20 +944,22 @@ send_invalid_reject(Config) -> send_unexpected_mandatory(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}], - ['STA', {'Session-Id', _}, {'Result-Code', ?AVP_UNSUPPORTED} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?AVP_UNSUPPORTED}] = call(Config, Req). %% Send something long that will be fragmented by TCP. send_long(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}, - {'User-Name', [lists:duplicate(1 bsl 20, $X)]}], - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + {'User-Name', [binary:copy(<<$X>>, 1 bsl 20)]}], + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] = call(Config, Req). %% Send something longer than the configure incoming_maxlen. send_maxlen(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}, - {'User-Name', [lists:duplicate(1 bsl 21, $X)]}], + {'User-Name', [binary:copy(<<$X>>, 1 bsl 21)]}], {timeout, _} = call(Config, Req). %% Send something for which pick_peer finds no suitable peer. @@ -733,7 +996,8 @@ send_any_2(Config) -> send_all_1(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}], Realm = lists:foldr(fun(C,A) -> [C,A] end, [], ?REALM), - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] = call(Config, Req, [{filter, {all, [{host, any}, {realm, Realm}]}}]). send_all_2(Config) -> @@ -762,13 +1026,13 @@ send_detach(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}], Ref = make_ref(), ok = call(Config, Req, [{extra, [{self(), Ref}]}, detach]), - Ans = receive {Ref, T} -> T end, - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] - = Ans. + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] + = receive {Ref, T} -> T end. %% Send a request which can't be encoded and expect {error, encode}. send_encode_error(Config) -> - {error, encode} = call(Config, ['STR']). %% No Termination-Cause + {error, encode} = call(Config, ['STR', {'Termination-Cause', huh}]). %% Send with filtering and expect success. send_destination_1(Config) -> @@ -776,25 +1040,27 @@ send_destination_1(Config) -> = group(Config), Req = ['STR', {'Termination-Cause', ?LOGOUT}, {'Destination-Host', [?HOST(SN, ?REALM)]}], - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] = call(Config, Req, [{filter, {all, [host, realm]}}]). send_destination_2(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}], - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] = call(Config, Req, [{filter, {all, [host, realm]}}]). %% Send with filtering on and expect failure when specifying an %% unknown host or realm. send_destination_3(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}, - {'Destination-Realm', "unknown.org"}], + {'Destination-Realm', <<"unknown.org">>}], {error, no_connection} = call(Config, Req, [{filter, {all, [host, realm]}}]). send_destination_4(Config) -> #group{server_service = SN} = group(Config), Req = ['STR', {'Termination-Cause', ?LOGOUT}, - {'Destination-Host', [?HOST(SN, "unknown.org")]}], + {'Destination-Host', [?HOST(SN, ["unknown.org"])]}], {error, no_connection} = call(Config, Req, [{filter, {all, [host, realm]}}]). @@ -802,7 +1068,7 @@ send_destination_4(Config) -> %% an unknown host or realm. send_destination_5(Config) -> Req = ['STR', {'Termination-Cause', ?LOGOUT}, - {'Destination-Realm', "unknown.org"}], + {'Destination-Realm', [<<"unknown.org">>]}], ?answer_message(?REALM_NOT_SERVED) = call(Config, Req). send_destination_6(Config) -> @@ -844,7 +1110,8 @@ send_bad_filter(Config, F) -> %% Specify multiple filter options and expect them be conjunctive. send_multiple_filters_1(Config) -> Fun = fun(#diameter_caps{}) -> true end, - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] = send_multiple_filters(Config, [host, {eval, Fun}]). send_multiple_filters_2(Config) -> E = {erlang, is_tuple, []}, @@ -855,7 +1122,8 @@ send_multiple_filters_3(Config) -> E2 = {erlang, is_tuple, []}, E3 = {erlang, is_record, [diameter_caps]}, E4 = [{erlang, is_record, []}, diameter_caps], - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] = send_multiple_filters(Config, [{eval, E} || E <- [E1,E2,E3,E4]]). send_multiple_filters(Config, Fs) -> @@ -866,7 +1134,8 @@ send_multiple_filters(Config, Fs) -> %% only the return value from the prepare_request callback being %% significant. send_anything(Config) -> - ['STA', {'Session-Id', _}, {'Result-Code', ?SUCCESS} | _] + ['STA' | #{'Session-Id' := _, + 'Result-Code' := ?SUCCESS}] = call(Config, anything). %% =========================================================================== @@ -875,7 +1144,7 @@ group(Config) -> #group{} = proplists:get_value(group, Config). string(V, Config) -> - #group{client_strings = B} = group(Config), + #group{strings = B} = group(Config), decode(V,B). decode(S, true) @@ -890,58 +1159,137 @@ call(Config, Req) -> call(Config, Req, Opts) -> Name = proplists:get_value(testcase, Config), - #group{client_service = CN, - client_encoding = ReqEncoding, - client_dict0 = Dict0} - = Group + #group{encoding = Enc, + client_service = CN, + client_dict = Dict0} = group(Config), diameter:call(CN, dict(Req, Dict0), - msg(Req, ReqEncoding, Dict0), - [{extra, [{Name, Group}, diameter_lib:now()]} | Opts]). + msg(Req, Enc, Dict0), + [{extra, [Name, diameter_lib:now()]} | Opts]). -origin({A,C}) -> - 2*codec(A) + container(C); +origin({D,E}) -> + 4*decode(D) + encode(E); origin(N) -> - {codec(N band 2), container(N rem 2)}. - -%% Map booleans, but the readable atoms are part of (constructed) -%% group names, so it's good that they're readable. - -codec(record) -> 0; -codec(list) -> 1; -codec(0) -> record; -codec(_) -> list. - -container(pkt) -> 0; -container(msg) -> 1; -container(0) -> pkt; -container(_) -> msg. + {decode(N bsr 2), encode(N rem 4)}. + +%% Map atoms. The atoms are part of (constructed) group names, so it's +%% good that they're readable. + +decode(record) -> 0; +decode(list) -> 1; +decode(map) -> 2; +decode(none) -> 3; +decode(record_from_map) -> 4; +decode(0) -> record; +decode(1) -> list; +decode(2) -> map; +decode(3) -> none; +decode(4) -> record_from_map. + +encode(record) -> 0; +encode(list) -> 1; +encode(map) -> 2; +encode(0) -> record; +encode(1) -> list; +encode(2) -> map. msg([H|_] = Msg, record = E, diameter_gen_base_rfc3588) when H == 'ACR'; H == 'ACA' -> msg(Msg, E, diameter_gen_base_accounting); + msg([H|_] = Msg, record = E, diameter_gen_base_rfc6733) when H == 'ACR'; H == 'ACA' -> msg(Msg, E, diameter_gen_acct_rfc6733); + msg([H|T], record, Dict) -> Dict:'#new-'(Dict:msg2rec(H), T); + +msg([H|As], map, _) + when is_list(As) -> + [H | maps:from_list(As)]; + msg(Msg, _, _) -> Msg. +to_map(#diameter_packet{msg = [_MsgName | Avps] = Msg}, + #group{server_decoding = map}) + when is_map(Avps) -> + Msg; + +to_map(#diameter_packet{msg = [MsgName | Avps]}, + #group{server_decoding = list}) -> + [MsgName | maps:from_list(Avps)]; + +to_map(#diameter_packet{header = H, msg = Rec}, + #group{server_decoding = D}) + when D == record; + D == record_from_map -> + rec_to_map(Rec, dict(H)); + +%% No record decode: do it ourselves. +to_map(#diameter_packet{header = H, + msg = Name, + bin = Bin}, + #group{server_decoding = none, + strings = B}) -> + Opts = #{decode_format => map, + string_decode => B, + avp_dictionaries => [diameter_gen_doic_rfc7683], + strict_mbit => true, + rfc => 6733}, + #diameter_packet{msg = [MsgName | _Map] = Msg} + = diameter_codec:decode(dict(H), Opts, Bin), + {MsgName, _} = {Name, Msg}, %% assert + Msg. + +dict(#diameter_header{application_id = Id, + cmd_code = Code}) -> + if Id == 1 -> + nas4005; + Code == 271 -> + diameter_gen_base_accounting; + true -> + diameter_gen_base_rfc3588 + end. + +rec_to_map(Rec, Dict) -> + [R | Vs] = Dict:'#get-'(Rec), + [Dict:rec2msg(R) | maps:from_list([T || {_,V} = T <- Vs, + V /= undefined, + V /= []])]. + +appdict(rfc4005) -> + nas4005; +appdict(D) -> + dict0(D). + dict0(D) -> ?A("diameter_gen_base_" ++ ?L(D)). -dict(Msg, Dict0) - when 'ACR' == hd(Msg); - 'ACA' == hd(Msg); - ?is_record(Msg, diameter_base_accounting_ACR); - ?is_record(Msg, diameter_base_accounting_ACA) -> +dict(Msg, Dict) -> + d(name(Msg), Dict). + +d(N, nas4005 = D) -> + if N == {list, 'answer-message'}; + N == {map, 'answer-message'}; + N == {record, 'diameter_base_answer-message'} -> + diameter_gen_base_rfc3588; + true -> + D + end; +d(N, Dict0) + when N == {list, 'ACR'}; + N == {list, 'ACA'}; + N == {map, 'ACR'}; + N == {map, 'ACA'}; + N == {record, diameter_base_accounting_ACR}; + N == {record, diameter_base_accounting_ACA} -> acct(Dict0); -dict(_, Dict0) -> +d(_, Dict0) -> Dict0. acct(diameter_gen_base_rfc3588) -> @@ -950,53 +1298,60 @@ acct(diameter_gen_base_rfc6733) -> diameter_gen_acct_rfc6733. %% Set only values that aren't already. -set(_, [H|T], Vs) -> - [H | Vs ++ T]; -set(#group{client_dict0 = Dict0} = _Group, Rec, Vs) -> + +set(_, [N | As], Vs) -> + [N | if is_map(As) -> + maps:merge(maps:from_list(Vs), As); + is_list(As) -> + Vs ++ As + end]; + +set(#group{client_dict = Dict0} = _Group, Rec, Vs) -> Dict = dict(Rec, Dict0), lists:foldl(fun({F,_} = FV, A) -> - set(Dict, Dict:'#get-'(F, A), FV, A) + reset(Dict, Dict:'#get-'(F, A), FV, A) end, Rec, Vs). -set(Dict, E, FV, Rec) +reset(Dict, E, FV, Rec) when E == undefined; E == [] -> Dict:'#set-'(FV, Rec); -set(_, _, _, Rec) -> + +reset(_, _, _, Rec) -> Rec. %% =========================================================================== %% diameter callbacks -%% peer_up/3 +%% peer_up/4 -peer_up(_SvcName, _Peer, State) -> +peer_up(_SvcName, _Peer, State, _Group) -> State. %% peer_down/3 -peer_down(_SvcName, _Peer, State) -> +peer_down(_SvcName, _Peer, State, _Group) -> State. -%% pick_peer/6-7 +%% pick_peer/7-8 -pick_peer(Peers, _, [$C|_], _State, {Name, Group}, _) +pick_peer(Peers, _, [$C|_], _State, Group, Name, _) when Name /= send_detach -> find(Group, Peers). -pick_peer(_Peers, _, [$C|_], _State, {send_nopeer, _}, _, ?EXTRA) -> +pick_peer(_Peers, _, [$C|_], _State, _Group, send_nopeer, _, ?EXTRA) -> false; -pick_peer(Peers, _, [$C|_], _State, {send_detach, Group}, _, {_,_}) -> +pick_peer(Peers, _, [$C|_], _State, Group, send_detach, _, {_,_}) -> find(Group, Peers). -find(#group{client_service = CN, - server_encoding = A, - server_container = C}, - Peers) -> - Id = {A,C}, +find(#group{encoding = E, + client_service = CN, + server_decoding = D}, + [_|_] = Peers) -> + Id = {D,E}, [P] = [P || P <- Peers, id(Id, P, CN)], {ok, P}. @@ -1005,15 +1360,15 @@ id(Id, {Pid, _Caps}, SvcName) -> = diameter:service_info(SvcName, Pid), lists:member({id, Id}, Opts). -%% prepare_request/5-6 +%% prepare_request/6-7 -prepare_request(_Pkt, [$C|_], {_Ref, _Caps}, {send_discard, _}, _) -> +prepare_request(_Pkt, [$C|_], {_Ref, _Caps}, _, send_discard, _) -> {discard, unprepared}; -prepare_request(Pkt, [$C|_], {_Ref, Caps}, {Name, Group}, _) -> +prepare_request(Pkt, [$C|_], {_Ref, Caps}, Group, Name, _) -> {send, prepare(Pkt, Caps, Name, Group)}. -prepare_request(Pkt, [$C|_], {_Ref, Caps}, {send_detach, Group}, _, _) -> +prepare_request(Pkt, [$C|_], {_Ref, Caps}, Group, send_detach, _, _) -> {eval_packet, {send, prepare(Pkt, Caps, Group)}, [fun log/2, detach]}. log(#diameter_packet{bin = Bin} = P, T) @@ -1022,7 +1377,7 @@ log(#diameter_packet{bin = Bin} = P, T) %% prepare/4 -prepare(Pkt, Caps, N, #group{client_dict0 = Dict0} = Group) +prepare(Pkt, Caps, N, #group{client_dict = Dict0} = Group) when N == send_unknown_short_mandatory; N == send_unknown_short -> Req = prepare(Pkt, Caps, Group), @@ -1042,7 +1397,7 @@ prepare(Pkt, Caps, N, #group{client_dict0 = Dict0} = Group) <<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) +prepare(Pkt, Caps, N, #group{client_dict = Dict0} = Group) when N == send_long_avp_length; N == send_short_avp_length; N == send_zero_avp_length -> @@ -1068,7 +1423,7 @@ prepare(Pkt, Caps, N, #group{client_dict0 = Dict0} = Group) T/binary, Hdr/binary, AL:24, Data/binary>>}; -prepare(Pkt, Caps, N, #group{client_dict0 = Dict0} = Group) +prepare(Pkt, Caps, N, #group{client_dict = Dict0} = Group) when N == send_invalid_avp_length; N == send_invalid_reject -> Req = prepare(Pkt, Caps, Group), @@ -1083,7 +1438,7 @@ 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_unexpected_mandatory, #group{client_dict0 = Dict0} +prepare(Pkt, Caps, send_unexpected_mandatory, #group{client_dict = Dict0} = Group) -> Req = prepare(Pkt, Caps, Group), #diameter_packet{bin = <<V, Len:24, T/binary>>} @@ -1093,7 +1448,7 @@ prepare(Pkt, Caps, send_unexpected_mandatory, #group{client_dict0 = Dict0} Avp = <<Code:32, Flags, 8:24>>, E#diameter_packet{bin = <<V, (Len+8):24, T/binary, Avp/binary>>}; -prepare(Pkt, Caps, send_grouped_error, #group{client_dict0 = Dict0} +prepare(Pkt, Caps, send_grouped_error, #group{client_dict = Dict0} = Group) -> Req = prepare(Pkt, Caps, Group), #diameter_packet{bin = Bin} @@ -1125,14 +1480,14 @@ prepare(Pkt, Caps, send_grouped_error, #group{client_dict0 = Dict0} Payload/binary, T/binary>>}; -prepare(Pkt, Caps, send_unsupported, #group{client_dict0 = Dict0} = Group) -> +prepare(Pkt, Caps, send_unsupported, #group{client_dict = Dict0} = Group) -> Req = prepare(Pkt, Caps, Group), #diameter_packet{bin = <<H:5/binary, _CmdCode:3/binary, T/binary>>} = E = diameter_codec:encode(Dict0, Pkt#diameter_packet{msg = Req}), E#diameter_packet{bin = <<H/binary, 42:24, T/binary>>}; -prepare(Pkt, Caps, send_unsupported_app, #group{client_dict0 = Dict0} +prepare(Pkt, Caps, send_unsupported_app, #group{client_dict = Dict0} = Group) -> Req = prepare(Pkt, Caps, Group), #diameter_packet{bin = <<H:8/binary, _ApplId:4/binary, T/binary>>} @@ -1159,93 +1514,120 @@ prepare(Pkt, Caps, _Name, Group) -> %% prepare/3 -prepare(#diameter_packet{msg = Req}, Caps, Group) - when ?is_record(Req, diameter_base_accounting_ACR); - 'ACR' == hd(Req) -> +prepare(#diameter_packet{msg = Req} = Pkt, Caps, Group) -> + set(name(Req), Pkt, Caps, Group). + +%% set/4 + +set(N, #diameter_packet{msg = Req}, Caps, Group) + when N == {record, diameter_base_accounting_ACR}; + N == {record, nas_ACR}; + N == {map, 'ACR'}; + N == {list, 'ACR'} -> #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, DR}} = Caps, - set(Group, Req, [{'Session-Id', diameter:session_id(OH)}, - {'Origin-Host', OH}, - {'Origin-Realm', OR}, - {'Destination-Realm', DR}]); + set(Group, Req, [{'Session-Id', [diameter:session_id(OH)]}, + {'Origin-Host', [OH]}, + {'Origin-Realm', [OR]}, + {'Destination-Realm', [DR]}]); -prepare(#diameter_packet{msg = Req}, Caps, Group) - when ?is_record(Req, diameter_base_ASR); - 'ASR' == hd(Req) -> +set(N, #diameter_packet{msg = Req}, Caps, Group) + when N == {record, diameter_base_ASR}; + N == {record, nas_ASR}; + N == {map, 'ASR'}; + N == {list, 'ASR'} -> #diameter_caps{origin_host = {OH, DH}, origin_realm = {OR, DR}} = Caps, - set(Group, Req, [{'Session-Id', diameter:session_id(OH)}, - {'Origin-Host', OH}, - {'Origin-Realm', OR}, - {'Destination-Host', DH}, - {'Destination-Realm', DR}, + set(Group, Req, [{'Session-Id', [diameter:session_id(OH)]}, + {'Origin-Host', [OH]}, + {'Origin-Realm', [OR]}, + {'Destination-Host', [DH]}, + {'Destination-Realm', [DR]}, {'Auth-Application-Id', ?APP_ID}]); -prepare(#diameter_packet{msg = Req}, Caps, Group) - when ?is_record(Req, diameter_base_STR); - 'STR' == hd(Req) -> +set(N, #diameter_packet{msg = Req}, Caps, Group) + when N == {record, diameter_base_STR}; + N == {record, nas_STR}; + N == {map, 'STR'}; + N == {list, 'STR'} -> #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, DR}} = Caps, - set(Group, Req, [{'Session-Id', diameter:session_id(OH)}, - {'Origin-Host', OH}, - {'Origin-Realm', OR}, - {'Destination-Realm', DR}, + set(Group, Req, [{'Session-Id', [diameter:session_id(OH)]}, + {'Origin-Host', [OH]}, + {'Origin-Realm', [OR]}, + {'Destination-Realm', [DR]}, {'Auth-Application-Id', ?APP_ID}]); -prepare(#diameter_packet{msg = Req}, Caps, Group) - when ?is_record(Req, diameter_base_RAR); - 'RAR' == hd(Req) -> +set(N, #diameter_packet{msg = Req}, Caps, Group) + when N == {record, diameter_base_RAR}; + N == {record, nas_RAR}; + N == {map, 'RAR'}; + N == {list, 'RAR'} -> #diameter_caps{origin_host = {OH, DH}, origin_realm = {OR, DR}} = Caps, - set(Group, Req, [{'Session-Id', diameter:session_id(OH)}, - {'Origin-Host', OH}, - {'Origin-Realm', OR}, - {'Destination-Host', DH}, - {'Destination-Realm', DR}, + set(Group, Req, [{'Session-Id', [diameter:session_id(OH)]}, + {'Origin-Host', [OH]}, + {'Origin-Realm', [OR]}, + {'Destination-Host', [DH]}, + {'Destination-Realm', [DR]}, {'Auth-Application-Id', ?APP_ID}]). -%% prepare_retransmit/5 +%% name/1 + +name([H|#{}]) -> + {map, H}; + +name([H|_]) -> + {list, H}; + +name(Rec) -> + try + {record, element(1, Rec)} + catch + error: badarg -> + false + end. -prepare_retransmit(_Pkt, false, _Peer, _Name, _Group) -> +%% prepare_retransmit/6 + +prepare_retransmit(_Pkt, false, _Peer, _Group, _Name, _) -> discard. -%% handle_answer/6-7 +%% handle_answer/7-8 -handle_answer(Pkt, Req, [$C|_], Peer, {Name, Group}, _) -> +handle_answer(Pkt, Req, [$C|_], Peer, Group, Name, _) -> answer(Pkt, Req, Peer, Name, Group). -handle_answer(Pkt, Req, [$C|_], Peer, {send_detach = Name, Group}, _, X) -> +handle_answer(Pkt, Req, [$C|_], Peer, Group, send_detach = Name, _, X) -> {Pid, Ref} = X, Pid ! {Ref, answer(Pkt, Req, Peer, Name, Group)}. -answer(Pkt, Req, _Peer, Name, #group{client_dict0 = Dict0}) -> +answer(Pkt, Req, _Peer, Name, #group{client_dict = Dict0}) -> #diameter_packet{header = H, msg = Ans, errors = Es} = Pkt, ApplId = app(Req, Name, Dict0), #diameter_header{application_id = ApplId} = H, %% assert - Dict = dict(Ans, Dict0), - [R | Vs] = Dict:'#get-'(answer(Ans, Es, Name)), - [Dict:rec2msg(R) | Vs]. + answer(Ans, Es, Name). %% Missing Result-Code and inappropriate Experimental-Result-Code. -answer(Rec, Es, send_experimental_result) -> +answer(Ans, Es, send_experimental_result) -> [{5004, #diameter_avp{name = 'Experimental-Result'}}, {5005, #diameter_avp{name = 'Result-Code'}}] = Es, - Rec; + Ans; %% An inappropriate E-bit results in a decode error ... -answer(Rec, Es, send_bad_answer) -> +answer(Ans, Es, send_bad_answer) -> [{5004, #diameter_avp{name = 'Result-Code'}} | _] = Es, - Rec; + Ans; %% ... while other errors are reflected in Failed-AVP. -answer(Rec, [], _) -> - Rec. +answer(Ans, [], _) -> + Ans. app(_, send_unsupported_app, _) -> ?BAD_APP; @@ -1253,25 +1635,29 @@ app(Req, _, Dict0) -> Dict = dict(Req, Dict0), Dict:id(). -%% handle_error/6 +%% handle_error/7 -handle_error(timeout = Reason, _Req, [$C|_], _Peer, _, Time) -> +handle_error(timeout = Reason, _Req, [$C|_], _Peer, _, _, Time) -> Now = diameter_lib:now(), {Reason, {diameter_lib:timestamp(Time), diameter_lib:timestamp(Now), diameter_lib:micro_diff(Now, Time)}}; -handle_error(Reason, _Req, [$C|_], _Peer, _, _Time) -> +handle_error(Reason, _Req, [$C|_], _Peer, _, _, _Time) -> {error, Reason}. -%% handle_request/3 +%% handle_request/4 %% Note that diameter will set Result-Code and Failed-AVPs if %% #diameter_packet.errors is non-null. -handle_request(#diameter_packet{header = H, msg = M, avps = As}, +handle_request(#diameter_packet{header = H, avps = As} + = Pkt, _, - {_Ref, Caps}) -> + {_Ref, Caps}, + #group{encoding = E, + server_decoding = D} + = Grp) -> #diameter_header{end_to_end_id = EI, hop_by_hop_id = HI} = H, @@ -1279,24 +1665,62 @@ handle_request(#diameter_packet{header = H, msg = M, avps = As}, V = EI bsr B, %% assert V = HI bsr B, %% #diameter_caps{origin_state_id = {_,[Id]}} = Caps, - answer(origin(Id), request(M, [H|As], Caps)). + {D,E} = T = origin(Id), %% assert + wrap(T, H, request(to_map(Pkt, Grp), [H|As], Caps)). + +wrap(Id, H, {Tag, Action, Post}) -> + {Tag, wrap(Id, H, Action), Post}; -answer(T, {Tag, Action, Post}) -> - {Tag, answer(T, Action), Post}; -answer(_, {reply, [#diameter_header{} | _]} = T) -> +wrap(_, _, {reply, [#diameter_header{} | _]} = T) -> T; -answer({A,C}, {reply, Ans}) -> - answer(C, {reply, msg(Ans, A, diameter_gen_base_rfc3588)}); -answer(pkt, {reply, Ans}) - when not is_record(Ans, diameter_packet) -> - {reply, #diameter_packet{msg = Ans}}; -answer(_, T) -> + +wrap({_,E}, H, {reply, Ans}) -> + Msg = base_to_nas(msg(Ans, E, diameter_gen_base_rfc3588), H), + {reply, wrap(Msg)}; + +wrap(_, _, T) -> T. +%% Randomly wrap the answer in a diameter_packet. + +wrap(#diameter_packet{} = Pkt) -> + Pkt; + +wrap(Msg) -> + case rand:uniform(2) of + 1 -> #diameter_packet{msg = Msg}; + 2 -> Msg + end. + +%% base_to_nas/2 + +base_to_nas(#diameter_packet{msg = Msg} = Pkt, H) -> + Pkt#diameter_packet{msg = base_to_nas(Msg, H)}; + +base_to_nas(Rec, #diameter_header{application_id = 1}) + when is_tuple(Rec), not ?is_record(Rec, 'diameter_base_answer-message') -> + D = case element(1, Rec) of + diameter_base_accounting_ACA -> + diameter_gen_base_accounting; + _ -> + diameter_gen_base_rfc3588 + end, + [R | Values] = D:'#get-'(Rec), + "diameter_base_" ++ N = ?L(R), + Name = ?A("nas_" ++ if N == "accounting_ACA" -> + "ACA"; + true -> + N + end), + nas4005:'#new-'([Name | Values]); + +base_to_nas(Msg, _) -> + Msg. + %% request/3 %% send_experimental_result -request(#diameter_base_accounting_ACR{'Accounting-Record-Number' = 5}, +request(['ACR' | #{'Accounting-Record-Number' := 5}], [Hdr | Avps], #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, _}}) -> @@ -1329,14 +1753,14 @@ request(Msg, _Avps, Caps) -> %% request/2 %% send_nok -request(#diameter_base_accounting_ACR{'Accounting-Record-Number' = 0}, +request(['ACR' | #{'Accounting-Record-Number' := 0}], _) -> {eval_packet, {protocol_error, ?INVALID_AVP_BITS}, [fun log/2, invalid]}; %% send_bad_answer -request(#diameter_base_accounting_ACR{'Session-Id' = SId, - 'Accounting-Record-Type' = RT, - 'Accounting-Record-Number' = 2 = RN}, +request(['ACR' | #{'Session-Id' := SId, + 'Accounting-Record-Type' := RT, + 'Accounting-Record-Number' := 2 = RN}], #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, _}}) -> Ans = ['ACA', {'Result-Code', ?SUCCESS}, @@ -1350,9 +1774,9 @@ request(#diameter_base_accounting_ACR{'Session-Id' = SId, msg = Ans}}; %% send_eval -request(#diameter_base_accounting_ACR{'Session-Id' = SId, - 'Accounting-Record-Type' = RT, - 'Accounting-Record-Number' = 3 = RN}, +request(['ACR' | #{'Session-Id' := SId, + 'Accounting-Record-Type' := RT, + 'Accounting-Record-Number' := 3 = RN}], #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, _}}) -> Ans = ['ACA', {'Result-Code', ?SUCCESS}, @@ -1364,9 +1788,9 @@ request(#diameter_base_accounting_ACR{'Session-Id' = SId, {eval, {reply, Ans}, {erlang, now, []}}; %% send_ok -request(#diameter_base_accounting_ACR{'Session-Id' = SId, - 'Accounting-Record-Type' = RT, - 'Accounting-Record-Number' = 1 = RN}, +request(['ACR' | #{'Session-Id' := SId, + 'Accounting-Record-Type' := RT, + 'Accounting-Record-Number' := 1 = RN}], #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, _}}) -> {reply, ['ACA', {'Result-Code', ?SUCCESS}, @@ -1377,48 +1801,69 @@ request(#diameter_base_accounting_ACR{'Session-Id' = SId, {'Accounting-Record-Number', RN}]}; %% send_protocol_error -request(#diameter_base_accounting_ACR{'Accounting-Record-Number' = 4}, +request(['ACR' | #{'Accounting-Record-Number' := 4}], #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, _}}) -> + %% Include a DOIC AVP that will be encoded/decoded because of + %% avp_dictionaries config. + OLR = #{'OC-Sequence-Number' => 1, + 'OC-Report-Type' => 0, %% HOST_REPORT + 'OC-Reduction-Percentage' => [25], + 'OC-Validity-Duration' => [60], + 'AVP' => [{'OC-Supported-Features', []}]}, + %% Include a NAS Failed-AVP AVP that will only be decoded under + %% that application. Encode as 'AVP' since RFC 3588 doesn't list + %% Failed-AVP in the answer-message grammar while RFC 6733 does. + NP = #diameter_avp{data = {nas4005, 'NAS-Port', 44}}, + FR = #diameter_avp{name = 'Firmware-Revision', value = 12}, %% M=0 + AP = #diameter_avp{name = 'Auth-Grace-Period', value = 13}, %% M=1 + Failed = #diameter_avp{data = {diameter_gen_base_rfc3588, + 'Failed-AVP', + [{'AVP', [NP,FR,AP]}]}}, Ans = ['answer-message', {'Result-Code', ?TOO_BUSY}, {'Origin-Host', OH}, - {'Origin-Realm', OR}], + {'Origin-Realm', OR}, + {'AVP', [{'OC-OLR', OLR}, Failed]}], {reply, Ans}; -request(#diameter_base_ASR{'Session-Id' = SId, - 'AVP' = Avps}, +%% send_proxy_info +request(['ASR' | #{'Proxy-Info' := _}], + _) -> + {protocol_error, 3999}; + +request(['ASR' | #{'Session-Id' := SId} = Avps], #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, _}}) -> {reply, ['ASA', {'Result-Code', ?SUCCESS}, {'Session-Id', SId}, {'Origin-Host', OH}, {'Origin-Realm', OR}, - {'AVP', Avps}]}; + {'AVP', maps:get('AVP', Avps, [])}]}; %% send_invalid_reject -request(#diameter_base_STR{'Termination-Cause' = ?USER_MOVED}, +request(['STR' | #{'Termination-Cause' := ?USER_MOVED}], _Caps) -> {protocol_error, ?TOO_BUSY}; %% send_noreply -request(#diameter_base_STR{'Termination-Cause' = T}, +request(['STR' | #{'Termination-Cause' := T}], _Caps) when T /= ?LOGOUT -> discard; %% send_destination_5 -request(#diameter_base_STR{'Destination-Realm' = R}, +request(['STR' | #{'Destination-Realm' := R}], #diameter_caps{origin_realm = {OR, _}}) when R /= undefined, R /= OR -> {protocol_error, ?REALM_NOT_SERVED}; %% send_destination_6 -request(#diameter_base_STR{'Destination-Host' = [H]}, +request(['STR' | #{'Destination-Host' := [H]}], #diameter_caps{origin_host = {OH, _}}) when H /= OH -> {protocol_error, ?UNABLE_TO_DELIVER}; -request(#diameter_base_STR{'Session-Id' = SId}, +request(['STR' | #{'Session-Id' := SId}], #diameter_caps{origin_host = {OH, _}, origin_realm = {OR, _}}) -> {reply, ['STA', {'Result-Code', ?SUCCESS}, @@ -1427,5 +1872,61 @@ request(#diameter_base_STR{'Session-Id' = SId}, {'Origin-Realm', OR}]}; %% send_error/send_timeout -request(#diameter_base_RAR{}, _Caps) -> +request(['RAR' | #{}], _Caps) -> receive after 2000 -> {protocol_error, ?TOO_BUSY} end. + +%% message/3 +%% +%% Limit the number of messages received. More can be received if read +%% in the same packet. + +message(recv = D, {[_], Bin}, N) -> + message(D, Bin, N); +message(Dir, #diameter_packet{bin = Bin}, N) -> + message(Dir, Bin, N); + +%% incoming request +message(recv, <<_:32, 1:1, _/bits>> = Bin, N) -> + [Bin, N < 16, fun ?MODULE:message/3, N+1]; + +%% incoming answer +message(recv, Bin, _) -> + [Bin]; + +%% outgoing +message(send, Bin, _) -> + [Bin]; + +%% sent request +message(ack, <<_:32, 1:1, _/bits>>, _) -> + []; + +%% sent answer or discarded request +message(ack, _, N) -> + [N =< 16, fun ?MODULE:message/3, N-1]. + +%% ------------------------------------------------------------------------ + +compile_and_load() -> + try + Path = hd([P || H <- [[here(), ".."], [code:lib_dir(diameter)]], + P <- [filename:join(H ++ ["examples", + "dict", + "rfc4005_nas.dia"])], + {ok, _} <- [file:read_file_info(P)]]), + {ok, [Forms]} + = diameter_make:codec(Path, [return, + forms, + {name, "nas4005"}, + {prefix, "nas"}, + {inherits, "common/diameter_gen_base_rfc3588"}]), + {ok, nas4005, Bin, []} = compile:forms(Forms, [debug_info, return]), + {module, nas4005} = code:load_binary(nas4005, "nas4005", Bin), + true + catch + E:R -> + {E, R, erlang:get_stacktrace()} + end. + +here() -> + filename:dirname(code:which(?MODULE)). |