File 2507-Add-diameter_dist_SUITE-to-exercise-diameter_dist-ro.patch of Package erlang
From d46fcfdcac4b0dcea41add605f9419a7ea17e32c Mon Sep 17 00:00:00 2001
From: Anders Svensson <anders@erlang.org>
Date: Mon, 4 Mar 2019 14:40:17 +0100
Subject: [PATCH 7/7] Add diameter_dist_SUITE to exercise
diameter_dist:route_session/2
Spread a server over three nodes, one of which terminates a peer
connection, the other two to handle requests. Terminate transport on one
of the server nodes and ensure that answers come only from the other
two.
---
lib/diameter/test/diameter_dist_SUITE.erl | 332 ++++++++++++++++++++++
lib/diameter/test/diameter_distribution_SUITE.erl | 4 +-
lib/diameter/test/modules.mk | 3 +-
3 files changed, 337 insertions(+), 2 deletions(-)
create mode 100644 lib/diameter/test/diameter_dist_SUITE.erl
diff --git a/lib/diameter/test/diameter_dist_SUITE.erl b/lib/diameter/test/diameter_dist_SUITE.erl
new file mode 100644
index 0000000000..b2e4c35b9a
--- /dev/null
+++ b/lib/diameter/test/diameter_dist_SUITE.erl
@@ -0,0 +1,332 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2019. 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.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+%% Tests of traffic between two Diameter nodes, the server being
+%% spread across three Erlang nodes.
+%%
+
+-module(diameter_dist_SUITE).
+
+-export([suite/0,
+ all/0]).
+
+%% testcases
+-export([enslave/1, enslave/0,
+ ping/1,
+ start/1,
+ connect/1,
+ send/1,
+ stop/1, stop/0]).
+
+%% diameter callbacks
+-export([peer_up/3,
+ peer_down/3,
+ pick_peer/4,
+ prepare_request/3,
+ prepare_retransmit/3,
+ handle_answer/4,
+ handle_error/4,
+ 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()},
+ {spawn_opt, {diameter_dist, route_session, [#{id => []}]}},
+ {sequence, fun sequence/0},
+ {string_decode, false},
+ {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. The server listens on the first node,
+%% and distributes requests to the other two.
+-define(NODES, [{server0, ?SERVER},
+ {server1, ?SERVER},
+ {server2, ?SERVER},
+ {client, ?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,
+ stop].
+
+%% ===========================================================================
+%% start/stop testcases
+
+%% enslave/1
+%%
+%% Start four slave nodes, three to implement a Diameter server,
+%% one to implement a client.
+
+enslave() ->
+ [{timetrap, {seconds, 30*length(?NODES)}}].
+
+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 server nodes are connected so that diameter_dist can attach.
+
+ping({S, Nodes}) ->
+ ?SERVER = S,
+ [N || {N,_} <- Nodes,
+ node() /= N,
+ pang <- [net_adm:ping(N)]];
+
+ping(Config) ->
+ Nodes = lists:droplast(?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(client) ->
+ {0,32};
+sequence(Server) ->
+ "server" ++ N = ?L(Server),
+ {list_to_integer(N), 30}.
+
+origin() ->
+ origin(sname()).
+
+origin(client) ->
+ 99;
+origin(Server) ->
+ "server" ++ N = ?L(Server),
+ list_to_integer(N).
+
+%% connect/1
+%%
+%% Establish one connection from the client, terminated on the first
+%% server node, the others handling requests.
+
+connect({?SERVER, Config, [{Node, _} | _]}) ->
+ if Node == node() -> %% server0
+ ?util:write_priv(Config, lref, {Node, ?util:listen(?SERVER, tcp)});
+ true ->
+ diameter_dist:attach([?SERVER])
+ end,
+ 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, Nodes}])],
+ RC /= ok].
+
+%% stop/1
+%%
+%% Stop the slave nodes.
+
+stop() ->
+ [{timetrap, {seconds, 30*length(?NODES)}}].
+
+stop(_Config) ->
+ [] = [{N,E} || {N,_} <- ?NODES,
+ {error, _, _} = E <- [ct_slave:stop(N)]].
+
+%% ===========================================================================
+%% traffic testcases
+
+%% send/1
+%%
+%% Send 100 requests and ensure the node name sent as User-Name isn't
+%% the node terminating transport.
+
+send(Config) ->
+ send(Config, 100, dict:new()).
+
+%% send/2
+
+send(Config, 0, Dict) ->
+ [{Server0, _} | _] = ?util:read_priv(Config, nodes) ,
+ Node = atom_to_binary(Server0, utf8),
+ {false, _} = {dict:is_key(Node, Dict), dict:to_list(Dict)};
+
+send(Config, N, Dict) ->
+ #diameter_base_STA{'Result-Code' = ?SUCCESS,
+ 'User-Name' = [ServerNode]}
+ = send(Config, str(?LOGOUT)),
+ true = is_binary(ServerNode),
+ send(Config, N-1, dict:update_counter(ServerNode, 1, Dict)).
+
+%% ===========================================================================
+
+str(Cause) ->
+ #diameter_base_STR{'Destination-Realm' = ?REALM,
+ 'Auth-Application-Id' = ?DICT:id(),
+ 'Termination-Cause' = Cause}.
+
+%% send/2
+
+send(Config, Req) ->
+ {Node, _} = lists:last(?util:read_priv(Config, nodes)),
+ rpc:call(Node, ?MODULE, call, [Req]).
+
+%% call/1
+
+call(Req) ->
+ diameter:call(?CLIENT, ?DICT, Req, []).
+
+%% 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([Peer], [], ?CLIENT, _State) ->
+ {ok, Peer}.
+
+%% prepare_request/3
+
+prepare_request(Pkt, ?CLIENT, {_Ref, Caps}) ->
+ #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/3
+
+prepare_retransmit(_, ?CLIENT, _) ->
+ discard.
+
+%% handle_answer/5
+
+handle_answer(Pkt, _Req, ?CLIENT, _Peer) ->
+ #diameter_packet{msg = Rec, errors = []} = Pkt,
+ Rec.
+
+%% handle_error/5
+
+handle_error(Reason, _Req, ?CLIENT, _Peer) ->
+ {error, Reason}.
+
+%% handle_request/3
+
+handle_request(Pkt, ?SERVER, {_, Caps}) ->
+ #diameter_packet{msg = #diameter_base_STR{'Session-Id' = SId}}
+ = Pkt,
+ #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,
+ 'User-Name' = [atom_to_binary(node(), utf8)]}}.
diff --git a/lib/diameter/test/diameter_distribution_SUITE.erl b/lib/diameter/test/diameter_distribution_SUITE.erl
index 92d5c59797..5fe02284ae 100644
--- a/lib/diameter/test/diameter_distribution_SUITE.erl
+++ b/lib/diameter/test/diameter_distribution_SUITE.erl
@@ -126,7 +126,7 @@ all() ->
%% enslave/1
%%
%% Start four slave nodes, one to implement a Diameter server,
-%% two three to implement a client.
+%% three to implement a client.
enslave() ->
[{timetrap, {seconds, 30*length(?NODES)}}].
@@ -332,6 +332,8 @@ prepare_request(Pkt, ?CLIENT, {_Ref, Caps}, {_, client0}) ->
'Origin-Realm' = OR,
'Session-Id' = diameter:session_id(OH)}}.
+%% prepare_retransmit/4
+
prepare_retransmit(Pkt, ?CLIENT, _, {_, client0}) ->
#diameter_packet{msg = #diameter_base_STR{'Termination-Cause' = ?MOVED}}
= Pkt, %% assert
diff --git a/lib/diameter/test/modules.mk b/lib/diameter/test/modules.mk
index 0c73adca12..90b0a25d5f 100644
--- a/lib/diameter/test/modules.mk
+++ b/lib/diameter/test/modules.mk
@@ -1,7 +1,7 @@
# %CopyrightBegin%
#
-# Copyright Ericsson AB 2010-2017. All Rights Reserved.
+# Copyright Ericsson AB 2010-2019. 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.
@@ -31,6 +31,7 @@ MODULES = \
diameter_codec_test \
diameter_config_SUITE \
diameter_compiler_SUITE \
+ diameter_dist_SUITE \
diameter_distribution_SUITE \
diameter_dpr_SUITE \
diameter_event_SUITE \
--
2.16.4
