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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2014 Red Hat | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | */ | |
13 | #include <stdio.h> | |
14 | #include <string.h> | |
15 | #include <iostream> | |
16 | #include <sstream> | |
17 | #include <time.h> | |
18 | #include <stdlib.h> | |
19 | #include <map> | |
20 | ||
21 | #include "global/global_init.h" | |
22 | #include "global/global_context.h" | |
23 | #include "common/ceph_argparse.h" | |
24 | #include "common/dout.h" | |
25 | #include "common/debug.h" | |
26 | #include "common/Cond.h" | |
27 | #include "common/Mutex.h" | |
28 | #include "common/Timer.h" | |
29 | #include "common/errno.h" | |
30 | #include "mon/MonClient.h" | |
31 | #include "msg/Dispatcher.h" | |
32 | #include "include/err.h" | |
33 | #include <boost/scoped_ptr.hpp> | |
34 | ||
35 | #include "gtest/gtest.h" | |
36 | ||
37 | #include "common/config.h" | |
38 | #include "include/assert.h" | |
39 | ||
40 | #include "messages/MMonProbe.h" | |
41 | #include "messages/MRoute.h" | |
42 | #include "messages/MGenericMessage.h" | |
43 | #include "messages/MMonJoin.h" | |
44 | ||
45 | #define dout_context g_ceph_context | |
46 | #define dout_subsys ceph_subsys_ | |
47 | #undef dout_prefix | |
48 | #define dout_prefix *_dout << "test-mon-msg " | |
49 | ||
50 | class MonClientHelper : public Dispatcher | |
51 | { | |
52 | protected: | |
53 | CephContext *cct; | |
54 | Messenger *msg; | |
55 | MonClient monc; | |
56 | ||
57 | Mutex lock; | |
58 | ||
59 | set<int> wanted; | |
60 | ||
61 | public: | |
62 | ||
63 | explicit MonClientHelper(CephContext *cct_) | |
64 | : Dispatcher(cct_), | |
65 | cct(cct_), | |
66 | monc(cct_), | |
67 | lock("mon-msg-test::lock") | |
68 | { } | |
69 | ||
70 | ||
71 | int post_init() { | |
72 | dout(1) << __func__ << dendl; | |
73 | if (!msg) | |
74 | return -EINVAL; | |
75 | msg->add_dispatcher_tail(this); | |
76 | return 0; | |
77 | } | |
78 | ||
79 | int init_messenger() { | |
80 | dout(1) << __func__ << dendl; | |
81 | ||
82 | std::string public_msgr_type = cct->_conf->ms_public_type.empty() ? cct->_conf->get_val<std::string>("ms_type") : cct->_conf->ms_public_type; | |
83 | msg = Messenger::create(cct, public_msgr_type, entity_name_t::CLIENT(-1), | |
84 | "test-mon-msg", 0, 0); | |
85 | assert(msg != NULL); | |
86 | msg->set_default_policy(Messenger::Policy::lossy_client(0)); | |
87 | dout(0) << __func__ << " starting messenger at " | |
88 | << msg->get_myaddr() << dendl; | |
89 | msg->start(); | |
90 | return 0; | |
91 | } | |
92 | ||
93 | int init_monc() { | |
94 | dout(1) << __func__ << dendl; | |
95 | assert(msg != NULL); | |
96 | int err = monc.build_initial_monmap(); | |
97 | if (err < 0) { | |
98 | derr << __func__ << " error building monmap: " | |
99 | << cpp_strerror(err) << dendl; | |
100 | return err; | |
101 | } | |
102 | ||
103 | monc.set_messenger(msg); | |
104 | msg->add_dispatcher_head(&monc); | |
105 | ||
106 | monc.set_want_keys(CEPH_ENTITY_TYPE_MON); | |
107 | err = monc.init(); | |
108 | if (err < 0) { | |
109 | derr << __func__ << " monc init failed: " | |
110 | << cpp_strerror(err) << dendl; | |
111 | goto fail; | |
112 | } | |
113 | ||
114 | err = monc.authenticate(); | |
115 | if (err < 0) { | |
116 | derr << __func__ << " monc auth failed: " | |
117 | << cpp_strerror(err) << dendl; | |
118 | goto fail_monc; | |
119 | } | |
120 | monc.wait_auth_rotating(30.0); | |
121 | monc.renew_subs(); | |
122 | dout(0) << __func__ << " finished" << dendl; | |
123 | return 0; | |
124 | ||
125 | fail_monc: | |
126 | derr << __func__ << " failing monc" << dendl; | |
127 | monc.shutdown(); | |
128 | fail: | |
129 | return err; | |
130 | } | |
131 | ||
132 | void shutdown_messenger() { | |
133 | dout(0) << __func__ << dendl; | |
134 | msg->shutdown(); | |
135 | msg->wait(); | |
136 | } | |
137 | ||
138 | void shutdown_monc() { | |
139 | dout(0) << __func__ << dendl; | |
140 | monc.shutdown(); | |
141 | } | |
142 | ||
143 | void shutdown() { | |
144 | dout(0) << __func__ << dendl; | |
145 | shutdown_monc(); | |
146 | shutdown_messenger(); | |
147 | } | |
148 | ||
149 | MonMap *get_monmap() { | |
150 | return &monc.monmap; | |
151 | } | |
152 | ||
153 | int init() { | |
154 | int err = init_messenger(); | |
155 | if (err < 0) | |
156 | goto fail; | |
157 | err = init_monc(); | |
158 | if (err < 0) | |
159 | goto fail_msgr; | |
160 | err = post_init(); | |
161 | if (err < 0) | |
162 | goto fail_monc; | |
163 | return 0; | |
164 | fail_monc: | |
165 | shutdown_monc(); | |
166 | fail_msgr: | |
167 | shutdown_messenger(); | |
168 | fail: | |
169 | return err; | |
170 | } | |
171 | ||
172 | virtual void handle_wanted(Message *m) { } | |
173 | ||
174 | bool handle_message(Message *m) { | |
175 | dout(1) << __func__ << " " << *m << dendl; | |
176 | if (!is_wanted(m)) { | |
177 | dout(10) << __func__ << " not wanted" << dendl; | |
178 | return false; | |
179 | } | |
180 | handle_wanted(m); | |
181 | m->put(); | |
182 | ||
183 | return true; | |
184 | } | |
185 | ||
186 | bool ms_dispatch(Message *m) override { | |
187 | return handle_message(m); | |
188 | } | |
189 | void ms_handle_connect(Connection *con) override { } | |
190 | void ms_handle_remote_reset(Connection *con) override { } | |
191 | bool ms_handle_reset(Connection *con) override { return false; } | |
192 | bool ms_handle_refused(Connection *con) override { return false; } | |
193 | ||
194 | bool is_wanted(Message *m) { | |
195 | dout(20) << __func__ << " " << *m << " type " << m->get_type() << dendl; | |
196 | return (wanted.find(m->get_type()) != wanted.end()); | |
197 | } | |
198 | ||
199 | void add_wanted(int t) { | |
200 | dout(20) << __func__ << " type " << t << dendl; | |
201 | wanted.insert(t); | |
202 | } | |
203 | ||
204 | void rm_wanted(int t) { | |
205 | dout(20) << __func__ << " type " << t << dendl; | |
206 | wanted.erase(t); | |
207 | } | |
208 | ||
209 | void send_message(Message *m) { | |
210 | dout(15) << __func__ << " " << *m << dendl; | |
211 | monc.send_mon_message(m); | |
212 | } | |
213 | ||
214 | void wait() { msg->wait(); } | |
215 | }; | |
216 | ||
217 | class MonMsgTest : public MonClientHelper, | |
218 | public ::testing::Test | |
219 | { | |
220 | protected: | |
221 | int reply_type; | |
222 | Message *reply_msg; | |
223 | Mutex lock; | |
224 | Cond cond; | |
225 | ||
226 | MonMsgTest() : | |
227 | MonClientHelper(g_ceph_context), | |
228 | lock("lock") { } | |
229 | ||
230 | public: | |
231 | void SetUp() override { | |
232 | reply_type = -1; | |
233 | if (reply_msg) { | |
234 | reply_msg->put(); | |
235 | reply_msg = NULL; | |
236 | } | |
237 | ASSERT_EQ(init(), 0); | |
238 | } | |
239 | ||
240 | void TearDown() override { | |
241 | shutdown(); | |
242 | if (reply_msg) { | |
243 | reply_msg->put(); | |
244 | reply_msg = NULL; | |
245 | } | |
246 | } | |
247 | ||
248 | void handle_wanted(Message *m) override { | |
249 | lock.Lock(); | |
250 | // caller will put() after they call us, so hold on to a ref | |
251 | m->get(); | |
252 | reply_msg = m; | |
253 | cond.Signal(); | |
254 | lock.Unlock(); | |
255 | } | |
256 | ||
257 | Message *send_wait_reply(Message *m, int t, double timeout=30.0) { | |
258 | lock.Lock(); | |
259 | reply_type = t; | |
260 | add_wanted(t); | |
261 | send_message(m); | |
262 | ||
263 | int err = 0; | |
264 | if (timeout > 0) { | |
265 | utime_t cond_timeout; | |
266 | cond_timeout.set_from_double(timeout); | |
267 | utime_t s = ceph_clock_now(); | |
268 | err = cond.WaitInterval(lock, cond_timeout); | |
269 | utime_t e = ceph_clock_now(); | |
270 | dout(20) << __func__ << " took " << (e-s) << " seconds" << dendl; | |
271 | } else { | |
272 | err = cond.Wait(lock); | |
273 | } | |
274 | rm_wanted(t); | |
275 | lock.Unlock(); | |
276 | if (err > 0) { | |
277 | dout(20) << __func__ << " error: " << cpp_strerror(err) << dendl; | |
278 | return (Message*)((long)-err); | |
279 | } | |
280 | ||
281 | if (!reply_msg) | |
282 | dout(20) << __func__ << " reply_msg is NULL" << dendl; | |
283 | else | |
284 | dout(20) << __func__ << " reply_msg " << *reply_msg << dendl; | |
285 | return reply_msg; | |
286 | } | |
287 | }; | |
288 | ||
289 | TEST_F(MonMsgTest, MMonProbeTest) | |
290 | { | |
291 | Message *m = new MMonProbe(get_monmap()->fsid, | |
292 | MMonProbe::OP_PROBE, "b", false); | |
293 | Message *r = send_wait_reply(m, MSG_MON_PROBE); | |
294 | ASSERT_NE(IS_ERR(r), 0); | |
295 | ASSERT_EQ(PTR_ERR(r), -ETIMEDOUT); | |
296 | } | |
297 | ||
298 | TEST_F(MonMsgTest, MRouteTest) | |
299 | { | |
300 | Message *payload = new MGenericMessage(CEPH_MSG_SHUTDOWN); | |
301 | MRoute *m = new MRoute; | |
302 | m->msg = payload; | |
303 | m->dest = msg->get_myinst(); | |
304 | Message *r = send_wait_reply(m, CEPH_MSG_SHUTDOWN); | |
305 | // we want an error | |
306 | ASSERT_NE(IS_ERR(r), 0); | |
307 | ASSERT_EQ(PTR_ERR(r), -ETIMEDOUT); | |
308 | } | |
309 | ||
310 | /* MMonScrub and MMonSync have other safeguards in place that prevent | |
311 | * us from actually receiving a reply even if the message is handled | |
312 | * by the monitor due to lack of cap checking. | |
313 | */ | |
314 | TEST_F(MonMsgTest, MMonJoin) | |
315 | { | |
316 | Message *m = new MMonJoin(get_monmap()->fsid, string("client"), | |
317 | msg->get_myaddr()); | |
318 | send_wait_reply(m, MSG_MON_PAXOS, 10.0); | |
319 | ||
320 | int r = monc.get_monmap(); | |
321 | ASSERT_EQ(r, 0); | |
322 | ASSERT_FALSE(monc.monmap.contains("client")); | |
323 | } | |
324 | ||
325 | int main(int argc, char *argv[]) | |
326 | { | |
327 | vector<const char*> args; | |
328 | argv_to_vec(argc, (const char **)argv, args); | |
329 | ||
330 | auto cct = global_init(nullptr, args, | |
331 | CEPH_ENTITY_TYPE_CLIENT, CODE_ENVIRONMENT_UTILITY, | |
332 | 0); | |
333 | common_init_finish(g_ceph_context); | |
334 | g_ceph_context->_conf->apply_changes(NULL); | |
335 | ::testing::InitGoogleTest(&argc, argv); | |
336 | ||
337 | return RUN_ALL_TESTS(); | |
338 | } | |
339 |