Commit | Line | Data |
---|---|---|
63371d1e | 1 | /* |
21cf9b6b | 2 | * Copyright (C) 2011 EfficiOS Inc. |
63371d1e | 3 | * |
9d16b343 | 4 | * SPDX-License-Identifier: GPL-2.0-only |
63371d1e | 5 | * |
63371d1e DG |
6 | */ |
7 | ||
28ab034a JG |
8 | #include <common/common.hpp> |
9 | #include <common/compat/errno.hpp> | |
10 | #include <common/sessiond-comm/sessiond-comm.hpp> | |
11 | ||
12 | #include <bin/lttng-sessiond/health-sessiond.hpp> | |
13 | #include <bin/lttng-sessiond/session.hpp> | |
14 | #include <bin/lttng-sessiond/thread.hpp> | |
15 | #include <bin/lttng-sessiond/ust-app.hpp> | |
63371d1e DG |
16 | #include <stdio.h> |
17 | #include <stdlib.h> | |
18 | #include <string.h> | |
6df2e2c9 | 19 | #include <sys/types.h> |
28ab034a | 20 | #include <tap/tap.h> |
c9e313bc SM |
21 | #include <time.h> |
22 | #include <unistd.h> | |
8273250b | 23 | #include <urcu.h> |
63371d1e | 24 | |
63371d1e DG |
25 | #define SESSION1 "test1" |
26 | ||
28ab034a JG |
27 | #define MAX_SESSIONS 10000 |
28 | #define RANDOM_STRING_LEN 11 | |
63371d1e | 29 | |
83c55082 | 30 | /* Number of TAP tests in this file */ |
dec56f6c | 31 | #define NUM_TESTS 11 |
63371d1e DG |
32 | |
33 | static struct ltt_session_list *session_list; | |
34 | ||
28ab034a JG |
35 | static const char alphanum[] = "0123456789" |
36 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
37 | "abcdefghijklmnopqrstuvwxyz"; | |
98612240 | 38 | static char random_string[RANDOM_STRING_LEN]; |
63371d1e DG |
39 | |
40 | /* | |
41 | * Return random string of 10 characters. | |
98612240 | 42 | * Not thread-safe. |
63371d1e | 43 | */ |
cd9adb8b | 44 | static char *get_random_string() |
63371d1e DG |
45 | { |
46 | int i; | |
63371d1e | 47 | |
98612240 MD |
48 | for (i = 0; i < RANDOM_STRING_LEN - 1; i++) { |
49 | random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)]; | |
63371d1e DG |
50 | } |
51 | ||
98612240 | 52 | random_string[RANDOM_STRING_LEN - 1] = '\0'; |
63371d1e | 53 | |
98612240 | 54 | return random_string; |
63371d1e DG |
55 | } |
56 | ||
57 | /* | |
58 | * Return 0 if session name is found, else -1 | |
59 | */ | |
b53d4e59 | 60 | static int find_session_name(const char *name) |
63371d1e DG |
61 | { |
62 | struct ltt_session *iter; | |
63 | ||
28ab034a | 64 | cds_list_for_each_entry (iter, &session_list->head, list) { |
63371d1e DG |
65 | if (strcmp(iter->name, name) == 0) { |
66 | return 0; | |
67 | } | |
68 | } | |
69 | ||
70 | return -1; | |
71 | } | |
72 | ||
cd9adb8b | 73 | static int session_list_count() |
cc305a0b MD |
74 | { |
75 | int count = 0; | |
76 | struct ltt_session *iter; | |
77 | ||
28ab034a | 78 | cds_list_for_each_entry (iter, &session_list->head, list) { |
cc305a0b MD |
79 | count++; |
80 | } | |
81 | return count; | |
82 | } | |
83 | ||
63371d1e DG |
84 | /* |
85 | * Empty session list manually. | |
86 | */ | |
cd9adb8b | 87 | static void empty_session_list() |
63371d1e DG |
88 | { |
89 | struct ltt_session *iter, *tmp; | |
90 | ||
d9a970b7 | 91 | const auto list_lock = lttng::sessiond::lock_session_list(); |
28ab034a | 92 | cds_list_for_each_entry_safe (iter, tmp, &session_list->head, list) { |
23324029 | 93 | session_destroy(iter); |
63371d1e DG |
94 | } |
95 | ||
96 | /* Session list must be 0 */ | |
a0377dfe | 97 | LTTNG_ASSERT(!session_list_count()); |
63371d1e DG |
98 | } |
99 | ||
100 | /* | |
101 | * Test creation of 1 session | |
102 | */ | |
b53d4e59 | 103 | static int create_one_session(const char *name) |
63371d1e DG |
104 | { |
105 | int ret; | |
b178f53e | 106 | enum lttng_error_code ret_code; |
cd9adb8b | 107 | struct ltt_session *session = nullptr; |
63371d1e | 108 | |
d9a970b7 | 109 | const auto list_lock = lttng::sessiond::lock_session_list(); |
e3876bf0 | 110 | ret_code = session_create(name, geteuid(), getegid(), &session); |
b178f53e JG |
111 | session_put(session); |
112 | if (ret_code == LTTNG_OK) { | |
63371d1e DG |
113 | /* Validate */ |
114 | ret = find_session_name(name); | |
115 | if (ret < 0) { | |
116 | /* Session not found by name */ | |
117 | printf("session not found after creation\n"); | |
b178f53e | 118 | ret = -1; |
63371d1e DG |
119 | } else { |
120 | /* Success */ | |
b178f53e | 121 | ret = 0; |
63371d1e | 122 | } |
54d01ffb | 123 | } else { |
b178f53e | 124 | if (ret_code == LTTNG_ERR_EXIST_SESS) { |
63371d1e DG |
125 | printf("(session already exists) "); |
126 | } | |
b178f53e | 127 | ret = -1; |
63371d1e | 128 | } |
3517bb68 | 129 | |
b178f53e | 130 | return ret; |
63371d1e DG |
131 | } |
132 | ||
133 | /* | |
134 | * Test deletion of 1 session | |
135 | */ | |
a0a4f314 | 136 | static int destroy_one_session(ltt_session::ref session) |
63371d1e DG |
137 | { |
138 | int ret; | |
59891c42 | 139 | char session_name[NAME_MAX]; |
63371d1e | 140 | |
4cd95b52 | 141 | strncpy(session_name, session->name, sizeof(session_name)); |
59891c42 | 142 | session_name[sizeof(session_name) - 1] = '\0'; |
54d01ffb | 143 | |
a0a4f314 JG |
144 | /* Reference of the session list. */ |
145 | ltt_session *weak_session_ptr = &session.get(); | |
146 | { | |
147 | /* Drop the reference that stems from the look-up. */ | |
148 | const ltt_session::ref reference_to_drop = std::move(session); | |
149 | } | |
150 | ||
151 | session_destroy(weak_session_ptr); | |
63371d1e | 152 | |
e32d7f27 JG |
153 | ret = find_session_name(session_name); |
154 | if (ret < 0) { | |
155 | /* Success, -1 means that the sesion is NOT found */ | |
156 | ret = 0; | |
157 | } else { | |
158 | /* Fail */ | |
159 | ret = -1; | |
160 | } | |
d9a970b7 | 161 | |
e32d7f27 | 162 | return ret; |
63371d1e DG |
163 | } |
164 | ||
63371d1e DG |
165 | /* |
166 | * This test is supposed to fail at the second create call. If so, return 0 for | |
167 | * test success, else -1. | |
168 | */ | |
cd9adb8b | 169 | static int two_session_same_name() |
63371d1e | 170 | { |
d9a970b7 | 171 | const auto ret = create_one_session(SESSION1); |
63371d1e DG |
172 | if (ret < 0) { |
173 | /* Fail */ | |
d9a970b7 | 174 | return -1; |
63371d1e DG |
175 | } |
176 | ||
d9a970b7 JG |
177 | /* |
178 | * Mind the order of the declaration of list_lock vs session: | |
179 | * the session list lock must always be released _after_ the release of | |
180 | * a session's reference (the destruction of a ref/locked_ref) to ensure | |
181 | * since the reference's release may unpublish the session from the list of | |
182 | * sessions. | |
183 | */ | |
184 | const auto list_lock = lttng::sessiond::lock_session_list(); | |
185 | try { | |
186 | const auto session = ltt_session::find_session(SESSION1); | |
63371d1e | 187 | /* Success */ |
d9a970b7 JG |
188 | return 0; |
189 | } catch (const lttng::sessiond::exceptions::session_not_found_error& ex) { | |
e32d7f27 | 190 | /* Fail */ |
d9a970b7 | 191 | return -1; |
63371d1e | 192 | } |
63371d1e DG |
193 | } |
194 | ||
cd9adb8b | 195 | static void test_session_list() |
63371d1e | 196 | { |
83c55082 | 197 | session_list = session_get_list(); |
cd9adb8b | 198 | ok(session_list != nullptr, "Session list: not NULL"); |
83c55082 | 199 | } |
63371d1e | 200 | |
cd9adb8b | 201 | static void test_create_one_session() |
83c55082 | 202 | { |
28ab034a | 203 | ok(create_one_session(SESSION1) == 0, "Create session: %s", SESSION1); |
83c55082 | 204 | } |
63371d1e | 205 | |
cd9adb8b | 206 | static void test_validate_session() |
83c55082 | 207 | { |
d9a970b7 JG |
208 | /* |
209 | * Mind the order of the declaration of list_lock vs session: | |
210 | * the session list lock must always be released _after_ the release of | |
211 | * a session's reference (the destruction of a ref/locked_ref) to ensure | |
212 | * since the reference's release may unpublish the session from the list of | |
213 | * sessions. | |
214 | */ | |
215 | const auto list_lock = lttng::sessiond::lock_session_list(); | |
d9a970b7 JG |
216 | |
217 | try { | |
a0a4f314 JG |
218 | const auto session = ltt_session::find_session(SESSION1); |
219 | pass("Validating session: session found"); | |
83c55082 | 220 | |
d9a970b7 | 221 | ok(session->kernel_session == nullptr && strlen(session->name), |
d61d06f0 | 222 | "Validating session: basic sanity check"); |
a0a4f314 JG |
223 | |
224 | session->lock(); | |
225 | session->unlock(); | |
226 | } catch (const lttng::sessiond::exceptions::session_not_found_error& ex) { | |
227 | fail("Validating session: session found"); | |
d61d06f0 | 228 | skip(1, "Skipping session validation check as session was not found"); |
d61d06f0 | 229 | } |
83c55082 | 230 | } |
63371d1e | 231 | |
cd9adb8b | 232 | static void test_destroy_session() |
83c55082 | 233 | { |
d9a970b7 JG |
234 | /* |
235 | * Mind the order of the declaration of list_lock vs session: | |
236 | * the session list lock must always be released _after_ the release of | |
237 | * a session's reference (the destruction of a ref/locked_ref) to ensure | |
238 | * since the reference's release may unpublish the session from the list of | |
239 | * sessions. | |
240 | */ | |
241 | const auto list_lock = lttng::sessiond::lock_session_list(); | |
d9a970b7 JG |
242 | |
243 | try { | |
a0a4f314 | 244 | auto session = ltt_session::find_session(SESSION1); |
63371d1e | 245 | |
a0a4f314 | 246 | pass("Destroying session: session found"); |
63371d1e | 247 | |
a0a4f314 | 248 | ok(destroy_one_session(std::move(session)) == 0, |
d9a970b7 JG |
249 | "Destroying session: %s destroyed", |
250 | SESSION1); | |
a0a4f314 JG |
251 | |
252 | } catch (const lttng::sessiond::exceptions::session_not_found_error& ex) { | |
253 | fail("Destroying session: session found"); | |
acd4994e JG |
254 | skip(1, "Skipping session destruction as it was not found"); |
255 | } | |
83c55082 | 256 | } |
63371d1e | 257 | |
cd9adb8b | 258 | static void test_duplicate_session() |
83c55082 | 259 | { |
28ab034a | 260 | ok(two_session_same_name() == 0, "Duplicate session creation"); |
83c55082 CB |
261 | } |
262 | ||
cd9adb8b | 263 | static void test_session_name_generation() |
83c55082 | 264 | { |
cd9adb8b | 265 | struct ltt_session *session = nullptr; |
b178f53e JG |
266 | enum lttng_error_code ret_code; |
267 | const char *expected_session_name_prefix = DEFAULT_SESSION_NAME; | |
83c55082 | 268 | |
d9a970b7 JG |
269 | const auto list_lock = lttng::sessiond::lock_session_list(); |
270 | ||
cd9adb8b | 271 | ret_code = session_create(nullptr, geteuid(), getegid(), &session); |
28ab034a | 272 | ok(ret_code == LTTNG_OK, "Create session with a NULL name (auto-generate a name)"); |
b178f53e JG |
273 | if (!session) { |
274 | skip(1, "Skipping session name generation tests as session_create() failed."); | |
275 | goto end; | |
276 | } | |
28ab034a JG |
277 | diag("Automatically-generated session name: %s", *session->name ? session->name : "ERROR"); |
278 | ok(*session->name && | |
279 | !strncmp(expected_session_name_prefix, | |
280 | session->name, | |
281 | sizeof(DEFAULT_SESSION_NAME) - 1), | |
282 | "Auto-generated session name starts with %s", | |
283 | DEFAULT_SESSION_NAME); | |
b178f53e JG |
284 | end: |
285 | session_put(session); | |
83c55082 CB |
286 | } |
287 | ||
cd9adb8b | 288 | static void test_large_session_number() |
83c55082 CB |
289 | { |
290 | int ret, i, failed = 0; | |
291 | struct ltt_session *iter, *tmp; | |
63371d1e | 292 | |
63371d1e | 293 | for (i = 0; i < MAX_SESSIONS; i++) { |
e6dd5671 | 294 | char *tmp_name = get_random_string(); |
dec56f6c | 295 | ret = create_one_session(tmp_name); |
63371d1e | 296 | if (ret < 0) { |
83c55082 CB |
297 | diag("session %d (name: %s) creation failed", i, tmp_name); |
298 | ++failed; | |
db9b8b88 | 299 | } |
63371d1e | 300 | } |
63371d1e | 301 | |
28ab034a | 302 | ok(failed == 0, "Large sessions number: created %u sessions", MAX_SESSIONS); |
83c55082 CB |
303 | |
304 | failed = 0; | |
305 | ||
d9a970b7 | 306 | const auto list_lock = lttng::sessiond::lock_session_list(); |
63371d1e | 307 | for (i = 0; i < MAX_SESSIONS; i++) { |
28ab034a | 308 | cds_list_for_each_entry_safe (iter, tmp, &session_list->head, list) { |
a0a4f314 JG |
309 | ret = destroy_one_session([iter]() { |
310 | session_get(iter); | |
311 | return ltt_session::ref(*iter); | |
312 | }()); | |
313 | ||
63371d1e | 314 | if (ret < 0) { |
59891c42 | 315 | diag("session %d destroy failed", i); |
83c55082 | 316 | ++failed; |
63371d1e DG |
317 | } |
318 | } | |
319 | } | |
63371d1e | 320 | |
83c55082 CB |
321 | ok(failed == 0 && session_list_count() == 0, |
322 | "Large sessions number: destroyed %u sessions", | |
323 | MAX_SESSIONS); | |
324 | } | |
63371d1e | 325 | |
cd9adb8b | 326 | int main() |
83c55082 | 327 | { |
83c55082 CB |
328 | plan_tests(NUM_TESTS); |
329 | ||
412d7227 | 330 | the_health_sessiond = health_app_create(NR_HEALTH_SESSIOND_TYPES); |
5e97de00 | 331 | |
e3bef725 CB |
332 | diag("Sessions unit tests"); |
333 | ||
8273250b JR |
334 | rcu_register_thread(); |
335 | ||
83c55082 CB |
336 | test_session_list(); |
337 | ||
338 | test_create_one_session(); | |
339 | ||
340 | test_validate_session(); | |
341 | ||
342 | test_destroy_session(); | |
343 | ||
344 | test_duplicate_session(); | |
345 | ||
346 | empty_session_list(); | |
347 | ||
b178f53e | 348 | test_session_name_generation(); |
83c55082 CB |
349 | |
350 | test_large_session_number(); | |
351 | ||
8273250b | 352 | rcu_unregister_thread(); |
a3707772 | 353 | lttng_thread_list_shutdown_orphans(); |
5e97de00 | 354 | |
83c55082 | 355 | return exit_status(); |
63371d1e | 356 | } |