Commit | Line | Data |
---|---|---|
2f8f53af DG |
1 | /* |
2 | * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com> | |
3 | * David Goulet <dgoulet@efficios.com> | |
7591bab1 | 4 | * 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
2f8f53af DG |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License, version 2 only, as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along with | |
16 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
17 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | */ | |
19 | ||
6c1c0768 | 20 | #define _LGPL_SOURCE |
2a174661 | 21 | #include <common/common.h> |
c70636a7 | 22 | #include <common/uuid.h> |
a8b66566 JR |
23 | #include <common/time.h> |
24 | #include <common/utils.h> | |
c70636a7 | 25 | #include <common/uuid.h> |
7591bab1 | 26 | #include <urcu/rculist.h> |
2a174661 | 27 | |
d37856b8 JR |
28 | #include <sys/stat.h> |
29 | ||
2a174661 | 30 | #include "ctf-trace.h" |
a620c891 | 31 | #include "lttng-relayd.h" |
2f8f53af | 32 | #include "session.h" |
23c8ff50 | 33 | #include "sessiond-trace-chunks.h" |
a620c891 | 34 | #include "stream.h" |
a0409c33 | 35 | #include <common/defaults.h> |
d37856b8 | 36 | #include "utils.h" |
2a174661 DG |
37 | |
38 | /* Global session id used in the session creation. */ | |
39 | static uint64_t last_relay_session_id; | |
7591bab1 | 40 | static pthread_mutex_t last_relay_session_id_lock = PTHREAD_MUTEX_INITIALIZER; |
2a174661 | 41 | |
a8b66566 | 42 | static int init_session_output_path_group_by_host(struct relay_session *session) |
ecd1a12f MD |
43 | { |
44 | /* | |
45 | * session_directory: | |
46 | * | |
47 | * if base_path is \0' | |
48 | * hostname/session_name | |
49 | * else | |
50 | * hostname/base_path | |
51 | */ | |
52 | char *session_directory = NULL; | |
53 | int ret = 0; | |
54 | ||
55 | if (session->output_path[0] != '\0') { | |
56 | goto end; | |
57 | } | |
58 | /* | |
59 | * If base path is set, it overrides the session name for the | |
60 | * session relative base path. No timestamp is appended if the | |
61 | * base path is overridden. | |
62 | * | |
63 | * If the session name already contains the creation time (e.g. | |
64 | * auto-<timestamp>, don't append yet another timestamp after | |
65 | * the session name in the generated path. | |
66 | * | |
67 | * Otherwise, generate the path with session_name-<timestamp>. | |
68 | */ | |
69 | if (session->base_path[0] != '\0') { | |
70 | ret = asprintf(&session_directory, "%s/%s", session->hostname, | |
71 | session->base_path); | |
72 | } else if (session->session_name_contains_creation_time) { | |
73 | ret = asprintf(&session_directory, "%s/%s", session->hostname, | |
74 | session->session_name); | |
75 | } else { | |
a8b66566 | 76 | char session_creation_datetime[DATETIME_STR_LEN]; |
ecd1a12f | 77 | |
a8b66566 JR |
78 | ret = time_to_datetime_str( |
79 | LTTNG_OPTIONAL_GET(session->creation_time), | |
80 | session_creation_datetime, | |
81 | sizeof(session_creation_datetime)); | |
82 | if (ret) { | |
ecd1a12f MD |
83 | ERR("Failed to format session creation timestamp while initializing session output directory handle"); |
84 | ret = -1; | |
85 | goto end; | |
86 | } | |
a8b66566 | 87 | |
ecd1a12f MD |
88 | ret = asprintf(&session_directory, "%s/%s-%s", |
89 | session->hostname, session->session_name, | |
90 | session_creation_datetime); | |
91 | } | |
92 | if (ret < 0) { | |
93 | PERROR("Failed to format session directory name"); | |
94 | goto end; | |
95 | } | |
96 | ||
97 | if (strlen(session_directory) >= LTTNG_PATH_MAX) { | |
98 | ERR("Session output directory exceeds maximal length"); | |
99 | ret = -1; | |
100 | goto end; | |
101 | } | |
102 | strcpy(session->output_path, session_directory); | |
103 | ret = 0; | |
104 | ||
105 | end: | |
106 | free(session_directory); | |
107 | return ret; | |
108 | } | |
109 | ||
a8b66566 JR |
110 | static int init_session_output_path_group_by_session( |
111 | struct relay_session *session) | |
112 | { | |
113 | /* | |
114 | * session_directory: | |
115 | * | |
116 | * session_name/hostname-creation_time/base_path | |
117 | * | |
118 | * For session name including the datetime, use it as the complete name | |
119 | * since. Do not perform modification on it since the datetime is an | |
120 | * integral part of the name and how a user identify a session. | |
121 | */ | |
122 | int ret = 0; | |
123 | char *session_directory = NULL; | |
124 | char creation_datetime[DATETIME_STR_LEN]; | |
125 | ||
126 | if (session->output_path[0] != '\0') { | |
127 | /* output_path as been generated already */ | |
128 | goto end; | |
129 | } | |
130 | ||
131 | ret = time_to_datetime_str(LTTNG_OPTIONAL_GET(session->creation_time), | |
132 | creation_datetime, sizeof(creation_datetime)); | |
133 | if (ret) { | |
134 | ERR("Failed to format session creation timestamp while initializing session output directory handle"); | |
135 | ret = -1; | |
136 | goto end; | |
137 | } | |
138 | ||
139 | ret = asprintf(&session_directory, "%s/%s-%s%s%s", | |
140 | session->session_name, session->hostname, | |
141 | creation_datetime, | |
142 | session->base_path[0] != '\0' ? "/" : "", | |
143 | session->base_path); | |
144 | if (ret < 0) { | |
145 | PERROR("Failed to format session directory name"); | |
146 | goto end; | |
147 | } | |
148 | ||
149 | if (strlen(session_directory) >= LTTNG_PATH_MAX) { | |
150 | ERR("Session output directory exceeds maximal length"); | |
151 | ret = -1; | |
152 | goto end; | |
153 | } | |
154 | ||
155 | strcpy(session->output_path, session_directory); | |
156 | ret = 0; | |
157 | ||
158 | end: | |
159 | free(session_directory); | |
160 | return ret; | |
161 | } | |
162 | ||
163 | static int init_session_output_path(struct relay_session *session) | |
164 | { | |
165 | int ret; | |
166 | ||
167 | switch (opt_group_output_by) { | |
168 | case RELAYD_GROUP_OUTPUT_BY_HOST: | |
169 | ret = init_session_output_path_group_by_host(session); | |
170 | break; | |
171 | case RELAYD_GROUP_OUTPUT_BY_SESSION: | |
172 | ret = init_session_output_path_group_by_session(session); | |
173 | break; | |
174 | case RELAYD_GROUP_OUTPUT_BY_UNKNOWN: | |
175 | default: | |
176 | abort(); | |
177 | break; | |
178 | } | |
179 | ||
180 | return ret; | |
181 | } | |
182 | ||
1e791a74 JG |
183 | static int session_set_anonymous_chunk(struct relay_session *session) |
184 | { | |
185 | int ret = 0; | |
186 | struct lttng_trace_chunk *chunk = NULL; | |
187 | enum lttng_trace_chunk_status status; | |
188 | struct lttng_directory_handle output_directory; | |
189 | ||
d37856b8 | 190 | ret = session_init_output_directory_handle(session, &output_directory); |
1e791a74 JG |
191 | if (ret) { |
192 | goto end; | |
193 | } | |
194 | ||
195 | chunk = lttng_trace_chunk_create_anonymous(); | |
196 | if (!chunk) { | |
197 | goto end; | |
198 | } | |
199 | ||
200 | status = lttng_trace_chunk_set_credentials_current_user(chunk); | |
201 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
202 | ret = -1; | |
203 | goto end; | |
204 | } | |
205 | ||
206 | status = lttng_trace_chunk_set_as_owner(chunk, &output_directory); | |
207 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
208 | ret = -1; | |
209 | goto end; | |
210 | } | |
211 | session->current_trace_chunk = chunk; | |
212 | chunk = NULL; | |
213 | end: | |
214 | lttng_trace_chunk_put(chunk); | |
215 | lttng_directory_handle_fini(&output_directory); | |
216 | return ret; | |
217 | } | |
218 | ||
2a174661 DG |
219 | /* |
220 | * Create a new session by assigning a new session ID. | |
221 | * | |
222 | * Return allocated session or else NULL. | |
223 | */ | |
7591bab1 | 224 | struct relay_session *session_create(const char *session_name, |
6fa5fe7c | 225 | const char *hostname, const char *base_path, |
db1da059 JG |
226 | uint32_t live_timer, |
227 | bool snapshot, | |
228 | const lttng_uuid sessiond_uuid, | |
229 | const uint64_t *id_sessiond, | |
230 | const uint64_t *current_chunk_id, | |
231 | const time_t *creation_time, | |
232 | uint32_t major, | |
46ef2188 MD |
233 | uint32_t minor, |
234 | bool session_name_contains_creation_time) | |
2a174661 | 235 | { |
23c8ff50 | 236 | int ret; |
590f0324 JG |
237 | struct relay_session *session = NULL; |
238 | ||
5c956ba3 JG |
239 | assert(session_name); |
240 | assert(hostname); | |
241 | assert(base_path); | |
242 | ||
243 | if (strstr(session_name, ".")) { | |
590f0324 JG |
244 | ERR("Illegal character in session name: \"%s\"", |
245 | session_name); | |
246 | goto error; | |
247 | } | |
5c956ba3 | 248 | if (strstr(base_path, "../")) { |
590f0324 JG |
249 | ERR("Invalid session base path walks up the path hierarchy: \"%s\"", |
250 | base_path); | |
251 | goto error; | |
252 | } | |
5c956ba3 | 253 | if (strstr(hostname, ".")) { |
590f0324 JG |
254 | ERR("Invalid character in hostname: \"%s\"", |
255 | hostname); | |
256 | goto error; | |
257 | } | |
2a174661 DG |
258 | |
259 | session = zmalloc(sizeof(*session)); | |
260 | if (!session) { | |
1e791a74 | 261 | PERROR("Failed to allocate session"); |
2a174661 DG |
262 | goto error; |
263 | } | |
bb5d54e7 MD |
264 | if (lttng_strncpy(session->session_name, session_name, |
265 | sizeof(session->session_name))) { | |
1e791a74 | 266 | WARN("Session name exceeds maximal allowed length"); |
bb5d54e7 MD |
267 | goto error; |
268 | } | |
269 | if (lttng_strncpy(session->hostname, hostname, | |
270 | sizeof(session->hostname))) { | |
1e791a74 | 271 | WARN("Hostname exceeds maximal allowed length"); |
bb5d54e7 MD |
272 | goto error; |
273 | } | |
6fa5fe7c MD |
274 | if (lttng_strncpy(session->base_path, base_path, |
275 | sizeof(session->base_path))) { | |
276 | WARN("Base path exceeds maximal allowed length"); | |
277 | goto error; | |
278 | } | |
46ef2188 MD |
279 | if (creation_time) { |
280 | LTTNG_OPTIONAL_SET(&session->creation_time, *creation_time); | |
281 | } | |
282 | session->session_name_contains_creation_time = | |
283 | session_name_contains_creation_time; | |
6fa5fe7c | 284 | |
2a174661 DG |
285 | session->ctf_traces_ht = lttng_ht_new(0, LTTNG_HT_TYPE_STRING); |
286 | if (!session->ctf_traces_ht) { | |
2a174661 DG |
287 | goto error; |
288 | } | |
289 | ||
7591bab1 | 290 | pthread_mutex_lock(&last_relay_session_id_lock); |
2a174661 | 291 | session->id = ++last_relay_session_id; |
7591bab1 MD |
292 | pthread_mutex_unlock(&last_relay_session_id_lock); |
293 | ||
294 | session->major = major; | |
295 | session->minor = minor; | |
2a174661 | 296 | lttng_ht_node_init_u64(&session->session_n, session->id); |
7591bab1 MD |
297 | urcu_ref_init(&session->ref); |
298 | CDS_INIT_LIST_HEAD(&session->recv_list); | |
299 | pthread_mutex_init(&session->lock, NULL); | |
7591bab1 MD |
300 | pthread_mutex_init(&session->recv_list_lock, NULL); |
301 | ||
7591bab1 MD |
302 | session->live_timer = live_timer; |
303 | session->snapshot = snapshot; | |
23c8ff50 JG |
304 | lttng_uuid_copy(session->sessiond_uuid, sessiond_uuid); |
305 | ||
1e791a74 JG |
306 | if (id_sessiond) { |
307 | LTTNG_OPTIONAL_SET(&session->id_sessiond, *id_sessiond); | |
308 | } | |
309 | ||
d519f442 JR |
310 | if (major == 2 && minor >= 11) { |
311 | /* Only applies for 2.11+ peers using trace chunks. */ | |
312 | ret = init_session_output_path(session); | |
313 | if (ret) { | |
314 | goto error; | |
315 | } | |
ecd1a12f | 316 | } |
d519f442 | 317 | |
23c8ff50 JG |
318 | ret = sessiond_trace_chunk_registry_session_created( |
319 | sessiond_trace_chunk_registry, sessiond_uuid); | |
320 | if (ret) { | |
321 | goto error; | |
322 | } | |
7591bab1 | 323 | |
1e791a74 JG |
324 | if (id_sessiond && current_chunk_id) { |
325 | session->current_trace_chunk = | |
326 | sessiond_trace_chunk_registry_get_chunk( | |
327 | sessiond_trace_chunk_registry, | |
328 | session->sessiond_uuid, | |
329 | session->id_sessiond.value, | |
330 | *current_chunk_id); | |
331 | if (!session->current_trace_chunk) { | |
c70636a7 | 332 | char uuid_str[LTTNG_UUID_STR_LEN]; |
1e791a74 JG |
333 | |
334 | lttng_uuid_to_str(sessiond_uuid, uuid_str); | |
335 | ERR("Could not find trace chunk: sessiond = {%s}, sessiond session id = %" PRIu64 ", trace chunk id = %" PRIu64, | |
336 | uuid_str, *id_sessiond, | |
337 | *current_chunk_id); | |
338 | } | |
339 | } else if (!id_sessiond) { | |
340 | /* | |
341 | * Pre-2.11 peers will not announce trace chunks. An | |
342 | * anonymous trace chunk which will remain set for the | |
343 | * duration of the session is created. | |
344 | */ | |
345 | ret = session_set_anonymous_chunk(session); | |
346 | if (ret) { | |
347 | goto error; | |
348 | } | |
349 | } | |
350 | ||
7591bab1 | 351 | lttng_ht_add_unique_u64(sessions_ht, &session->session_n); |
bb5d54e7 | 352 | return session; |
2a174661 DG |
353 | |
354 | error: | |
1e791a74 | 355 | session_put(session); |
bb5d54e7 | 356 | return NULL; |
2a174661 | 357 | } |
2f8f53af | 358 | |
7591bab1 MD |
359 | /* Should be called with RCU read-side lock held. */ |
360 | bool session_get(struct relay_session *session) | |
361 | { | |
ce4d4083 | 362 | return urcu_ref_get_unless_zero(&session->ref); |
7591bab1 MD |
363 | } |
364 | ||
2f8f53af | 365 | /* |
7591bab1 MD |
366 | * Lookup a session within the session hash table using the session id |
367 | * as key. A session reference is taken when a session is returned. | |
368 | * session_put() must be called on that session. | |
2f8f53af DG |
369 | * |
370 | * Return session or NULL if not found. | |
371 | */ | |
7591bab1 | 372 | struct relay_session *session_get_by_id(uint64_t id) |
2f8f53af DG |
373 | { |
374 | struct relay_session *session = NULL; | |
2a174661 | 375 | struct lttng_ht_node_u64 *node; |
2f8f53af DG |
376 | struct lttng_ht_iter iter; |
377 | ||
7591bab1 MD |
378 | rcu_read_lock(); |
379 | lttng_ht_lookup(sessions_ht, &id, &iter); | |
2a174661 | 380 | node = lttng_ht_iter_get_node_u64(&iter); |
2f8f53af | 381 | if (!node) { |
2a174661 | 382 | DBG("Session find by ID %" PRIu64 " id NOT found", id); |
2f8f53af DG |
383 | goto end; |
384 | } | |
385 | session = caa_container_of(node, struct relay_session, session_n); | |
2a174661 | 386 | DBG("Session find by ID %" PRIu64 " id found", id); |
7591bab1 MD |
387 | if (!session_get(session)) { |
388 | session = NULL; | |
389 | } | |
2f8f53af | 390 | end: |
7591bab1 | 391 | rcu_read_unlock(); |
2f8f53af DG |
392 | return session; |
393 | } | |
2a174661 | 394 | |
7591bab1 MD |
395 | static void rcu_destroy_session(struct rcu_head *rcu_head) |
396 | { | |
397 | struct relay_session *session = | |
398 | caa_container_of(rcu_head, struct relay_session, | |
399 | rcu_node); | |
49e614cb MD |
400 | /* |
401 | * Since each trace has a reference on the session, it means | |
402 | * that if we are at the point where we teardown the session, no | |
403 | * trace belonging to that session exist at this point. | |
404 | * Calling lttng_ht_destroy in call_rcu worker thread so we | |
405 | * don't hold the RCU read-side lock while calling it. | |
406 | */ | |
407 | lttng_ht_destroy(session->ctf_traces_ht); | |
7591bab1 MD |
408 | free(session); |
409 | } | |
410 | ||
2a174661 DG |
411 | /* |
412 | * Delete session from the given hash table. | |
413 | * | |
414 | * Return lttng ht del error code being 0 on success and 1 on failure. | |
415 | */ | |
7591bab1 | 416 | static int session_delete(struct relay_session *session) |
2a174661 DG |
417 | { |
418 | struct lttng_ht_iter iter; | |
419 | ||
2a174661 | 420 | iter.iter.node = &session->session_n.node; |
7591bab1 | 421 | return lttng_ht_del(sessions_ht, &iter); |
2a174661 DG |
422 | } |
423 | ||
7591bab1 MD |
424 | |
425 | static void destroy_session(struct relay_session *session) | |
426 | { | |
427 | int ret; | |
428 | ||
429 | ret = session_delete(session); | |
430 | assert(!ret); | |
639ddf68 | 431 | lttng_trace_chunk_put(session->current_trace_chunk); |
c35f9726 | 432 | session->current_trace_chunk = NULL; |
62bad3bf JG |
433 | lttng_trace_chunk_put(session->pending_closure_trace_chunk); |
434 | session->pending_closure_trace_chunk = NULL; | |
23c8ff50 JG |
435 | ret = sessiond_trace_chunk_registry_session_destroyed( |
436 | sessiond_trace_chunk_registry, session->sessiond_uuid); | |
437 | assert(!ret); | |
7591bab1 MD |
438 | call_rcu(&session->rcu_node, rcu_destroy_session); |
439 | } | |
440 | ||
feb33caa | 441 | static void session_release(struct urcu_ref *ref) |
2a174661 | 442 | { |
7591bab1 MD |
443 | struct relay_session *session = |
444 | caa_container_of(ref, struct relay_session, ref); | |
2a174661 | 445 | |
7591bab1 MD |
446 | destroy_session(session); |
447 | } | |
2a174661 | 448 | |
7591bab1 MD |
449 | void session_put(struct relay_session *session) |
450 | { | |
874ec45e JG |
451 | if (!session) { |
452 | return; | |
453 | } | |
7591bab1 | 454 | rcu_read_lock(); |
7591bab1 | 455 | urcu_ref_put(&session->ref, session_release); |
7591bab1 | 456 | rcu_read_unlock(); |
2a174661 DG |
457 | } |
458 | ||
7591bab1 | 459 | int session_close(struct relay_session *session) |
2a174661 DG |
460 | { |
461 | int ret = 0; | |
7591bab1 MD |
462 | struct ctf_trace *trace; |
463 | struct lttng_ht_iter iter; | |
464 | struct relay_stream *stream; | |
465 | ||
466 | pthread_mutex_lock(&session->lock); | |
467 | DBG("closing session %" PRIu64 ": is conn already closed %d", | |
468 | session->id, session->connection_closed); | |
7591bab1 | 469 | session->connection_closed = true; |
7591bab1 | 470 | pthread_mutex_unlock(&session->lock); |
2a174661 | 471 | |
7591bab1 MD |
472 | rcu_read_lock(); |
473 | cds_lfht_for_each_entry(session->ctf_traces_ht->ht, | |
474 | &iter.iter, trace, node.node) { | |
475 | ret = ctf_trace_close(trace); | |
476 | if (ret) { | |
477 | goto rcu_unlock; | |
2a174661 DG |
478 | } |
479 | } | |
7591bab1 MD |
480 | cds_list_for_each_entry_rcu(stream, &session->recv_list, |
481 | recv_node) { | |
bda7c7b9 JG |
482 | /* Close streams which have not been published yet. */ |
483 | try_stream_close(stream); | |
7591bab1 MD |
484 | } |
485 | rcu_unlock: | |
486 | rcu_read_unlock(); | |
487 | if (ret) { | |
488 | return ret; | |
489 | } | |
490 | /* Put self-reference from create. */ | |
491 | session_put(session); | |
492 | return ret; | |
2a174661 DG |
493 | } |
494 | ||
98ba050e JR |
495 | int session_abort(struct relay_session *session) |
496 | { | |
497 | int ret = 0; | |
498 | ||
499 | if (!session) { | |
500 | return 0; | |
501 | } | |
502 | ||
503 | pthread_mutex_lock(&session->lock); | |
504 | DBG("aborting session %" PRIu64, session->id); | |
98ba050e | 505 | session->aborted = true; |
98ba050e JR |
506 | pthread_mutex_unlock(&session->lock); |
507 | return ret; | |
508 | } | |
509 | ||
7591bab1 | 510 | void print_sessions(void) |
2a174661 | 511 | { |
2a174661 | 512 | struct lttng_ht_iter iter; |
7591bab1 | 513 | struct relay_session *session; |
2a174661 | 514 | |
ce3f3ba3 JG |
515 | if (!sessions_ht) { |
516 | return; | |
517 | } | |
518 | ||
2a174661 | 519 | rcu_read_lock(); |
7591bab1 MD |
520 | cds_lfht_for_each_entry(sessions_ht->ht, &iter.iter, session, |
521 | session_n.node) { | |
522 | if (!session_get(session)) { | |
523 | continue; | |
524 | } | |
525 | DBG("session %p refcount %ld session %" PRIu64, | |
526 | session, | |
527 | session->ref.refcount, | |
528 | session->id); | |
529 | session_put(session); | |
2a174661 | 530 | } |
2a174661 | 531 | rcu_read_unlock(); |
2a174661 | 532 | } |
d37856b8 JR |
533 | |
534 | int session_init_output_directory_handle(struct relay_session *session, | |
535 | struct lttng_directory_handle *handle) | |
536 | { | |
537 | int ret; | |
538 | /* | |
539 | * relayd_output_path/session_directory | |
540 | * e.g. /home/user/lttng-traces/hostname/session_name | |
541 | */ | |
542 | char *full_session_path = NULL; | |
543 | ||
544 | pthread_mutex_lock(&session->lock); | |
545 | full_session_path = create_output_path(session->output_path); | |
546 | if (!full_session_path) { | |
547 | ret = -1; | |
548 | goto end; | |
549 | } | |
550 | ||
551 | ret = utils_mkdir_recursive( | |
552 | full_session_path, S_IRWXU | S_IRWXG, -1, -1); | |
553 | if (ret) { | |
554 | ERR("Failed to create session output path \"%s\"", | |
555 | full_session_path); | |
556 | goto end; | |
557 | } | |
558 | ||
559 | ret = lttng_directory_handle_init(handle, full_session_path); | |
560 | if (ret) { | |
561 | goto end; | |
562 | } | |
563 | end: | |
564 | pthread_mutex_unlock(&session->lock); | |
565 | free(full_session_path); | |
566 | return ret; | |
567 | } |