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Diffstat (limited to 'lib/diameter/test/diameter_distribution_SUITE.erl')
| -rw-r--r-- | lib/diameter/test/diameter_distribution_SUITE.erl | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/lib/diameter/test/diameter_distribution_SUITE.erl b/lib/diameter/test/diameter_distribution_SUITE.erl new file mode 100644 index 0000000000..01d3507b27 --- /dev/null +++ b/lib/diameter/test/diameter_distribution_SUITE.erl @@ -0,0 +1,372 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2013. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% + +%% +%% Tests of traffic between two Diameter nodes, the client being +%% spread across three Erlang nodes. +%% + +-module(diameter_distribution_SUITE). + +-export([suite/0, + all/0]). + +%% testcases +-export([enslave/1, + ping/1, + start/1, + connect/1, + send_local/1, + send_remote/1, + send_timeout/1, + send_failover/1, + stop/1]). + +%% diameter callbacks +-export([peer_up/3, + peer_down/3, + pick_peer/5, + prepare_request/4, + prepare_retransmit/4, + handle_answer/5, + handle_error/5, + handle_request/3]). + +-export([call/1]). + +-include("diameter.hrl"). +-include("diameter_gen_base_rfc6733.hrl"). + +%% =========================================================================== + +-define(util, diameter_util). + +-define(CLIENT, 'CLIENT'). +-define(SERVER, 'SERVER'). +-define(REALM, "erlang.org"). +-define(DICT, diameter_gen_base_rfc6733). +-define(ADDR, {127,0,0,1}). + +%% Config for diameter:start_service/2. +-define(SERVICE(Host), + [{'Origin-Host', Host ++ [$.|?REALM]}, + {'Origin-Realm', ?REALM}, + {'Host-IP-Address', [?ADDR]}, + {'Vendor-Id', 12345}, + {'Product-Name', "OTP/diameter"}, + {'Auth-Application-Id', [?DICT:id()]}, + {'Origin-State-Id', origin()}, + {share_peers, peers()}, + {use_shared_peers, peers()}, + {restrict_connections, false}, + {sequence, fun sequence/0}, + {application, [{dictionary, ?DICT}, + {module, ?MODULE}, + {request_errors, callback}, + {answer_errors, callback}]}]). + +-define(SUCCESS, 2001). +-define(BUSY, 3004). +-define(LOGOUT, ?'DIAMETER_BASE_TERMINATION-CAUSE_LOGOUT'). +-define(MOVED, ?'DIAMETER_BASE_TERMINATION-CAUSE_USER_MOVED'). +-define(TIMEOUT, ?'DIAMETER_BASE_TERMINATION-CAUSE_SESSION_TIMEOUT'). + +-define(L, atom_to_list). +-define(A, list_to_atom). + +%% The order here is significant and causes the server to listen +%% before the clients connect. +-define(NODES, [{server, ?SERVER}, + {client0, ?CLIENT}, + {client1, ?CLIENT}, + {client2, ?CLIENT}]). + +%% Options to ct_slave:start/2. +-define(TIMEOUTS, [{T, 15000} || T <- [boot_timeout, + init_timeout, + start_timeout]]). + +%% =========================================================================== + +suite() -> + [{timetrap, {seconds, 60}}]. + +all() -> + [enslave, + ping, + start, + connect, + send_local, + send_remote, + send_timeout, + send_failover, + stop]. + +%% =========================================================================== +%% start/stop testcases + +%% enslave/1 +%% +%% Start four slave nodes, one to implement a Diameter server, +%% two three to implement a client. + +enslave(Config) -> + Here = filename:dirname(code:which(?MODULE)), + Ebin = filename:join([Here, "..", "ebin"]), + Dirs = [Here, Ebin], + Nodes = [{N,S} || {M,S} <- ?NODES, N <- [slave(M, Dirs)]], + ?util:write_priv(Config, nodes, [{N,S} || {{N,ok},S} <- Nodes]), + [] = [{T,S} || {{_,E} = T, S} <- Nodes, E /= ok]. + +slave(Name, Dirs) -> + add_pathsa(Dirs, ct_slave:start(Name, ?TIMEOUTS)). + +add_pathsa(Dirs, {ok, Node}) -> + {Node, rpc:call(Node, code, add_pathsa, [Dirs])}; +add_pathsa(_, No) -> + {No, error}. + +%% ping/1 +%% +%% Ensure the client nodes are connected since the sharing of +%% transports is only between connected nodes. + +ping({?SERVER, _Nodes}) -> + []; + +ping({?CLIENT, Nodes}) -> + [N || {N,_} <- Nodes, + node() /= N, + pang <- [net_adm:ping(N)]]; + +ping(Config) -> + Nodes = ?util:read_priv(Config, nodes), + [] = [{N,RC} || {N,S} <- Nodes, + RC <- [rpc:call(N, ?MODULE, ping, [{S, Nodes}])], + RC /= []]. + +%% start/1 +%% +%% Start diameter services. + +start(SvcName) + when is_atom(SvcName) -> + ok = diameter:start(), + ok = diameter:start_service(SvcName, ?SERVICE((?L(SvcName)))); + +start(Config) -> + Nodes = ?util:read_priv(Config, nodes), + [] = [{N,RC} || {N,S} <- Nodes, + RC <- [rpc:call(N, ?MODULE, start, [S])], + RC /= ok]. + +sequence() -> + sequence(sname()). + +sequence(server) -> + {0,32}; +sequence(Client) -> + "client" ++ N = ?L(Client), + {list_to_integer(N), 30}. + +origin() -> + origin(sname()). + +origin(server) -> + 99; +origin(Client) -> + "client" ++ N = ?L(Client), + list_to_integer(N). + +peers() -> + peers(sname()). + +peers(server) -> true; +peers(client0) -> [node() | nodes()]; +peers(client1) -> fun erlang:nodes/0; +peers(client2) -> nodes(). + +%% connect/1 +%% +%% Establish one connection to the server from each of the client +%% nodes. + +connect({?SERVER, Config}) -> + ?util:write_priv(Config, lref, {node(), ?util:listen(?SERVER, tcp)}), + ok; + +connect({?CLIENT, Config}) -> + ?util:connect(?CLIENT, tcp, ?util:read_priv(Config, lref)), + ok; + +connect(Config) -> + Nodes = ?util:read_priv(Config, nodes), + [] = [{N,RC} || {N,S} <- Nodes, + RC <- [rpc:call(N, ?MODULE, connect, [{S,Config}])], + RC /= ok]. + +%% stop/1 +%% +%% Stop the slave nodes. + +stop(_Config) -> + [] = [{N,E} || {N,_} <- ?NODES, + {error, _, _} = E <- [ct_slave:stop(N)]]. + +%% =========================================================================== +%% traffic testcases + +%% send_local/1 +%% +%% Send a request from the first client node, using a the local +%% transport. + +send_local(Config) -> + #diameter_base_STA{'Result-Code' = ?SUCCESS} + = send(Config, local, str(?LOGOUT)). + +%% send_remote/1 +%% +%% Send a request from the first client node, using a transport on the +%% another node. + +send_remote(Config) -> + #diameter_base_STA{'Result-Code' = ?SUCCESS} + = send(Config, remote, str(?LOGOUT)). + +%% send_timeout/1 +%% +%% Send a request that the server discards. + +send_timeout(Config) -> + {error, timeout} = send(Config, remote, str(?TIMEOUT)). + +%% send_failover/1 +%% +%% Send a request that causes the server to remote transports down. + +send_failover(Config) -> + #'diameter_base_answer-message'{'Result-Code' = ?BUSY} + = send(Config, remote, str(?MOVED)). + +%% =========================================================================== + +str(Cause) -> + #diameter_base_STR{'Destination-Realm' = ?REALM, + 'Auth-Application-Id' = ?DICT:id(), + 'Termination-Cause' = Cause}. + +%% send/2 + +send(Config, Where, Req) -> + [_, {Node, _} | _] = ?util:read_priv(Config, nodes) , + rpc:call(Node, ?MODULE, call, [{Where, Req}]). + +%% call/1 + +call({Where, Req}) -> + diameter:call(?CLIENT, ?DICT, Req, [{extra, [{Where, sname()}]}]). + +%% sname/0 + +sname() -> + ?A(hd(string:tokens(?L(node()), "@"))). + +%% =========================================================================== +%% diameter callbacks + +%% peer_up/3 + +peer_up(_SvcName, _Peer, State) -> + State. + +%% peer_down/3 + +peer_down(_SvcName, _Peer, State) -> + State. + +%% pick_peer/4 + +pick_peer([LP], [_, _], ?CLIENT, _State, {local, client0}) -> + {ok, LP}; + +pick_peer([_], [RP | _], ?CLIENT, _State, {remote, client0}) -> + {ok, RP}; + +pick_peer([LP], [], ?CLIENT, _State, {remote, client0}) -> + {ok, LP}. + +%% prepare_request/4 + +prepare_request(Pkt, ?CLIENT, {_Ref, Caps}, {_, client0}) -> + #diameter_packet{msg = Req} + = Pkt, + #diameter_caps{origin_host = {OH, _}, + origin_realm = {OR, _}} + = Caps, + {send, Req#diameter_base_STR{'Origin-Host' = OH, + 'Origin-Realm' = OR, + 'Session-Id' = diameter:session_id(OH)}}. + +prepare_retransmit(Pkt, ?CLIENT, _, {_, client0}) -> + #diameter_packet{msg = #diameter_base_STR{'Termination-Cause' = ?MOVED}} + = Pkt, %% assert + {send, Pkt}. + +%% handle_answer/5 + +handle_answer(Pkt, _Req, ?CLIENT, _Peer, {_, client0}) -> + #diameter_packet{msg = Rec, errors = []} = Pkt, + Rec. + +%% handle_error/5 + +handle_error(Reason, _Req, ?CLIENT, _Peer, {_, client0}) -> + {error, Reason}. + +%% handle_request/3 + +handle_request(Pkt, ?SERVER, Peer) -> + server = sname(), %% assert + #diameter_packet{msg = Req} + = Pkt, + request(Req, Peer). + +request(#diameter_base_STR{'Termination-Cause' = ?TIMEOUT}, _) -> + discard; + +request(#diameter_base_STR{'Termination-Cause' = ?MOVED}, Peer) -> + {TPid, #diameter_caps{origin_state_id = {_, [N]}}} = Peer, + fail(N, TPid); + +request(#diameter_base_STR{'Session-Id' = SId}, {_, Caps}) -> + #diameter_caps{origin_host = {OH, _}, + origin_realm = {OR, _}} + = Caps, + {reply, #diameter_base_STA{'Result-Code' = ?SUCCESS, + 'Session-Id' = SId, + 'Origin-Host' = OH, + 'Origin-Realm' = OR}}. + +fail(0, _) -> %% sent from the originating node ... + {protocol_error, ?BUSY}; + +fail(_, TPid) -> %% ... or through a remote node: force failover + exit(TPid, kill), + discard. |