1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2013-2017. 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.
%% 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 events sent as a consequence of diameter:subscribe/1.
%% Watchdog events are dealt with more extensively in the watchdog
%% suite.
%%
-module(diameter_event_SUITE).
-export([suite/0,
all/0,
init_per_testcase/2,
end_per_testcase/2]).
%% testcases
-export([start/1,
start_server/1,
up/1,
down/1,
cea_timeout/1,
stop/1]).
-include("diameter.hrl").
%% ===========================================================================
-define(util, diameter_util).
-define(ADDR, {127,0,0,1}).
-define(REALM, "REALM").
-define(SERVER, "SERVER.SERVER-REALM").
-define(CLIENT, "CLIENT.CLIENT-REALM").
-define(DICT_COMMON, ?DIAMETER_DICT_COMMON).
-define(DICT_ACCT, ?DIAMETER_DICT_ACCOUNTING).
-define(SERVER_CAPX_TMO, 6000).
%% Config for diameter:start_service/2.
-define(SERVICE(Host, Dicts),
[{'Origin-Host', Host},
{'Origin-Realm', realm(Host)},
{'Host-IP-Address', [?ADDR]},
{'Vendor-Id', 12345},
{'Product-Name', "OTP/diameter"},
{'Acct-Application-Id', [D:id() || D <- Dicts]},
{decode_format, map}
| [{application, [{dictionary, D},
{module, #diameter_callback{}}]}
|| D <- Dicts]]).
%% Diameter Result-Code's:
-define(NO_COMMON_APP, 5010).
%% ===========================================================================
suite() ->
[{timetrap, {seconds, 60}}].
all() ->
[start,
start_server,
up,
down,
cea_timeout,
stop].
init_per_testcase(Name, Config) ->
[{name, Name} | Config].
end_per_testcase(_, _) ->
ok.
%% ===========================================================================
%% start/stop testcases
start(_Config) ->
ok = diameter:start().
start_server(Config) ->
diameter:subscribe(?SERVER),
ok = diameter:start_service(?SERVER, ?SERVICE(?SERVER, [?DICT_COMMON])),
LRef = ?util:listen(?SERVER, tcp, [{capabilities_cb, fun capx_cb/2},
{capx_timeout, ?SERVER_CAPX_TMO}]),
[PortNr] = ?util:lport(tcp, LRef),
?util:write_priv(Config, portnr, PortNr),
start = event(?SERVER).
%% Connect with matching capabilities and expect the connection to
%% come up.
up(Config) ->
{Svc, Ref} = connect(Config, [{connect_timer, 5000},
{watchdog_timer, 15000}]),
start = event(Svc),
{up, Ref, {TPid, Caps}, Cfg, #diameter_packet{msg = M}} = event(Svc),
['CEA' | #{}] = M, %% assert
{watchdog, Ref, _, {initial, okay}, _} = event(Svc),
%% Kill the transport process and see that the connection is
%% reestablished after a watchdog timeout, not after connect_timer
%% expiry.
exit(TPid, kill),
{down, Ref, {TPid, Caps}, Cfg} = event(Svc),
{watchdog, Ref, _, {okay, down}, _} = event(Svc),
{reconnect, Ref, _} = event(Svc, 10000, 20000).
%% Connect with non-matching capabilities and expect CEA from the peer
%% to indicate as much and then for the transport to be restarted
%% (after connect_timer).
down(Config) ->
{Svc, Ref} = connect(Config, [{capabilities, [{'Acct-Application-Id',
[?DICT_ACCT:id()]}]},
{applications, [?DICT_ACCT]},
{connect_timer, 5000},
{watchdog_timer, 20000}]),
start = event(Svc),
{closed, Ref, {'CEA', ?NO_COMMON_APP, _, #diameter_packet{msg = M}}, _}
= event(Svc),
['CEA' | #{}] = M, %% assert
{reconnect, Ref, _} = event(Svc, 4000, 10000).
%% Connect with matching capabilities but have the server delay its
%% CEA and cause the client to timeout.
cea_timeout(Config) ->
{Svc, Ref} = connect(Config, [{capx_timeout, ?SERVER_CAPX_TMO div 2},
{connect_timer, 2*?SERVER_CAPX_TMO}]),
start = event(Svc),
{closed, Ref, {'CEA', timeout}, _} = event(Svc).
stop(_Config) ->
ok = diameter:stop().
%% ----------------------------------------
%% Keep the server from sending CEA until the client has timed out.
capx_cb(_, #diameter_caps{origin_host = {_, "cea_timeout-" ++ _}}) ->
receive after ?SERVER_CAPX_TMO -> ok end;
%% Or not.
capx_cb(_, _Caps) ->
ok.
%% ----------------------------------------
%% Use the testcase name to construct Origin-Host of the client so
%% that the server can match on it in capx_cb/2.
connect(Config, Opts) ->
Pre = atom_to_list(proplists:get_value(name, Config)),
Name = Pre ++ uniq() ++ ?CLIENT,
diameter:subscribe(Name),
ok = start_service(Name, ?SERVICE(Name, [?DICT_COMMON, ?DICT_ACCT])),
{ok, Ref} = diameter:add_transport(Name, opts(Config, Opts)),
{Name, Ref}.
uniq() ->
"-" ++ diameter_util:unique_string().
event(Name) ->
receive #diameter_event{service = Name, info = T} -> T end.
event(Name, TL, TH) ->
T0 = diameter_lib:now(),
Event = event(Name),
DT = diameter_lib:micro_diff(T0) div 1000,
{true, true, DT, Event} = {TL < DT, DT < TH, DT, Event},
Event.
start_service(Name, Opts) ->
diameter:start_service(Name, [{monitor, self()} | Opts]).
opts(Config, Opts) ->
PortNr = ?util:read_priv(Config, portnr),
{connect, [{transport_module, diameter_tcp},
{transport_config, [{ip, ?ADDR}, {port, 0},
{raddr, ?ADDR}, {rport, PortNr}]}
| Opts]}.
realm(Host) ->
tl(lists:dropwhile(fun(C) -> C /= $. end, Host)).
|
