Commit | Line | Data |
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00e2e675 DG |
1 | /* |
2 | * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com> | |
92816cc3 | 3 | * 2018 - Jérémie Galarneau <jeremie.galarneau@efficios.com> |
00e2e675 DG |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License, version 2 only, as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
6c1c0768 | 19 | #define _LGPL_SOURCE |
00e2e675 DG |
20 | #include <assert.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <sys/stat.h> | |
25 | #include <sys/types.h> | |
26 | #include <unistd.h> | |
d88aee68 | 27 | #include <inttypes.h> |
00e2e675 DG |
28 | |
29 | #include <common/common.h> | |
30 | #include <common/defaults.h> | |
31 | #include <common/uri.h> | |
d3e2ba59 | 32 | #include <common/relayd/relayd.h> |
d2956687 | 33 | #include <common/string-utils/format.h> |
00e2e675 DG |
34 | |
35 | #include "consumer.h" | |
8782cc74 | 36 | #include "health-sessiond.h" |
7972aab2 | 37 | #include "ust-app.h" |
0b2dc8df | 38 | #include "utils.h" |
658f12fa | 39 | #include "lttng-sessiond.h" |
00e2e675 | 40 | |
3b967712 MD |
41 | /* |
42 | * Return allocated full pathname of the session using the consumer trace path | |
43 | * and subdir if available. | |
44 | * | |
45 | * The caller can safely free(3) the returned value. On error, NULL is | |
46 | * returned. | |
47 | */ | |
48 | char *setup_channel_trace_path(struct consumer_output *consumer, | |
49 | const char *session_path) | |
50 | { | |
51 | int ret; | |
52 | char *pathname; | |
53 | ||
54 | assert(consumer); | |
55 | assert(session_path); | |
56 | ||
57 | health_code_update(); | |
58 | ||
59 | /* | |
60 | * Allocate the string ourself to make sure we never exceed | |
61 | * LTTNG_PATH_MAX. | |
62 | */ | |
63 | pathname = zmalloc(LTTNG_PATH_MAX); | |
64 | if (!pathname) { | |
65 | goto error; | |
66 | } | |
67 | ||
68 | /* Get correct path name destination */ | |
69 | if (consumer->type == CONSUMER_DST_NET && | |
70 | consumer->relay_major_version == 2 && | |
71 | consumer->relay_minor_version < 11) { | |
72 | ret = snprintf(pathname, LTTNG_PATH_MAX, "%s%s/%s%s", | |
73 | consumer->dst.net.base_dir, | |
74 | consumer->chunk_path, consumer->domain_subdir, | |
75 | session_path); | |
76 | } else { | |
77 | ret = snprintf(pathname, LTTNG_PATH_MAX, "%s%s", | |
78 | consumer->domain_subdir, session_path); | |
79 | } | |
80 | DBG3("Consumer trace path relative to current trace chunk: \"%s\"", | |
81 | pathname); | |
82 | if (ret < 0) { | |
83 | PERROR("Failed to format channel path"); | |
84 | goto error; | |
85 | } else if (ret >= LTTNG_PATH_MAX) { | |
86 | ERR("Truncation occurred while formatting channel path"); | |
87 | ret = -1; | |
88 | goto error; | |
89 | } | |
90 | ||
91 | return pathname; | |
92 | error: | |
93 | free(pathname); | |
94 | return NULL; | |
95 | } | |
96 | ||
52898cb1 DG |
97 | /* |
98 | * Send a data payload using a given consumer socket of size len. | |
99 | * | |
100 | * The consumer socket lock MUST be acquired before calling this since this | |
101 | * function can change the fd value. | |
102 | * | |
103 | * Return 0 on success else a negative value on error. | |
104 | */ | |
105 | int consumer_socket_send(struct consumer_socket *socket, void *msg, size_t len) | |
106 | { | |
107 | int fd; | |
108 | ssize_t size; | |
109 | ||
110 | assert(socket); | |
9363801e | 111 | assert(socket->fd_ptr); |
52898cb1 DG |
112 | assert(msg); |
113 | ||
114 | /* Consumer socket is invalid. Stopping. */ | |
9363801e | 115 | fd = *socket->fd_ptr; |
52898cb1 DG |
116 | if (fd < 0) { |
117 | goto error; | |
118 | } | |
119 | ||
120 | size = lttcomm_send_unix_sock(fd, msg, len); | |
121 | if (size < 0) { | |
122 | /* The above call will print a PERROR on error. */ | |
123 | DBG("Error when sending data to consumer on sock %d", fd); | |
124 | /* | |
92db7cdc DG |
125 | * At this point, the socket is not usable anymore thus closing it and |
126 | * setting the file descriptor to -1 so it is not reused. | |
52898cb1 DG |
127 | */ |
128 | ||
129 | /* This call will PERROR on error. */ | |
130 | (void) lttcomm_close_unix_sock(fd); | |
9363801e | 131 | *socket->fd_ptr = -1; |
52898cb1 DG |
132 | goto error; |
133 | } | |
134 | ||
135 | return 0; | |
136 | ||
137 | error: | |
138 | return -1; | |
139 | } | |
140 | ||
141 | /* | |
142 | * Receive a data payload using a given consumer socket of size len. | |
143 | * | |
144 | * The consumer socket lock MUST be acquired before calling this since this | |
145 | * function can change the fd value. | |
146 | * | |
147 | * Return 0 on success else a negative value on error. | |
148 | */ | |
149 | int consumer_socket_recv(struct consumer_socket *socket, void *msg, size_t len) | |
150 | { | |
151 | int fd; | |
152 | ssize_t size; | |
153 | ||
154 | assert(socket); | |
9363801e | 155 | assert(socket->fd_ptr); |
52898cb1 DG |
156 | assert(msg); |
157 | ||
158 | /* Consumer socket is invalid. Stopping. */ | |
9363801e | 159 | fd = *socket->fd_ptr; |
52898cb1 DG |
160 | if (fd < 0) { |
161 | goto error; | |
162 | } | |
163 | ||
164 | size = lttcomm_recv_unix_sock(fd, msg, len); | |
165 | if (size <= 0) { | |
166 | /* The above call will print a PERROR on error. */ | |
167 | DBG("Error when receiving data from the consumer socket %d", fd); | |
168 | /* | |
92db7cdc DG |
169 | * At this point, the socket is not usable anymore thus closing it and |
170 | * setting the file descriptor to -1 so it is not reused. | |
52898cb1 DG |
171 | */ |
172 | ||
173 | /* This call will PERROR on error. */ | |
174 | (void) lttcomm_close_unix_sock(fd); | |
9363801e | 175 | *socket->fd_ptr = -1; |
52898cb1 DG |
176 | goto error; |
177 | } | |
178 | ||
179 | return 0; | |
180 | ||
181 | error: | |
182 | return -1; | |
183 | } | |
184 | ||
f50f23d9 DG |
185 | /* |
186 | * Receive a reply command status message from the consumer. Consumer socket | |
187 | * lock MUST be acquired before calling this function. | |
188 | * | |
189 | * Return 0 on success, -1 on recv error or a negative lttng error code which | |
190 | * was possibly returned by the consumer. | |
191 | */ | |
192 | int consumer_recv_status_reply(struct consumer_socket *sock) | |
193 | { | |
194 | int ret; | |
195 | struct lttcomm_consumer_status_msg reply; | |
196 | ||
197 | assert(sock); | |
198 | ||
52898cb1 DG |
199 | ret = consumer_socket_recv(sock, &reply, sizeof(reply)); |
200 | if (ret < 0) { | |
f50f23d9 DG |
201 | goto end; |
202 | } | |
203 | ||
0c759fc9 | 204 | if (reply.ret_code == LTTCOMM_CONSUMERD_SUCCESS) { |
f50f23d9 DG |
205 | /* All good. */ |
206 | ret = 0; | |
207 | } else { | |
208 | ret = -reply.ret_code; | |
ffe60014 | 209 | DBG("Consumer ret code %d", ret); |
f50f23d9 DG |
210 | } |
211 | ||
212 | end: | |
213 | return ret; | |
214 | } | |
215 | ||
ffe60014 DG |
216 | /* |
217 | * Once the ASK_CHANNEL command is sent to the consumer, the channel | |
218 | * information are sent back. This call receives that data and populates key | |
219 | * and stream_count. | |
220 | * | |
221 | * On success return 0 and both key and stream_count are set. On error, a | |
222 | * negative value is sent back and both parameters are untouched. | |
223 | */ | |
224 | int consumer_recv_status_channel(struct consumer_socket *sock, | |
d88aee68 | 225 | uint64_t *key, unsigned int *stream_count) |
ffe60014 DG |
226 | { |
227 | int ret; | |
228 | struct lttcomm_consumer_status_channel reply; | |
229 | ||
230 | assert(sock); | |
231 | assert(stream_count); | |
232 | assert(key); | |
233 | ||
52898cb1 DG |
234 | ret = consumer_socket_recv(sock, &reply, sizeof(reply)); |
235 | if (ret < 0) { | |
ffe60014 DG |
236 | goto end; |
237 | } | |
238 | ||
239 | /* An error is possible so don't touch the key and stream_count. */ | |
0c759fc9 | 240 | if (reply.ret_code != LTTCOMM_CONSUMERD_SUCCESS) { |
ffe60014 DG |
241 | ret = -1; |
242 | goto end; | |
243 | } | |
244 | ||
245 | *key = reply.key; | |
246 | *stream_count = reply.stream_count; | |
0c759fc9 | 247 | ret = 0; |
ffe60014 DG |
248 | |
249 | end: | |
250 | return ret; | |
251 | } | |
252 | ||
2f77fc4b DG |
253 | /* |
254 | * Send destroy relayd command to consumer. | |
255 | * | |
256 | * On success return positive value. On error, negative value. | |
257 | */ | |
258 | int consumer_send_destroy_relayd(struct consumer_socket *sock, | |
259 | struct consumer_output *consumer) | |
260 | { | |
261 | int ret; | |
262 | struct lttcomm_consumer_msg msg; | |
263 | ||
264 | assert(consumer); | |
265 | assert(sock); | |
266 | ||
9363801e | 267 | DBG2("Sending destroy relayd command to consumer sock %d", *sock->fd_ptr); |
2f77fc4b | 268 | |
53efb85a | 269 | memset(&msg, 0, sizeof(msg)); |
2f77fc4b DG |
270 | msg.cmd_type = LTTNG_CONSUMER_DESTROY_RELAYD; |
271 | msg.u.destroy_relayd.net_seq_idx = consumer->net_seq_index; | |
272 | ||
273 | pthread_mutex_lock(sock->lock); | |
52898cb1 | 274 | ret = consumer_socket_send(sock, &msg, sizeof(msg)); |
2f77fc4b | 275 | if (ret < 0) { |
52898cb1 | 276 | goto error; |
2f77fc4b DG |
277 | } |
278 | ||
f50f23d9 DG |
279 | /* Don't check the return value. The caller will do it. */ |
280 | ret = consumer_recv_status_reply(sock); | |
281 | ||
2f77fc4b DG |
282 | DBG2("Consumer send destroy relayd command done"); |
283 | ||
284 | error: | |
52898cb1 | 285 | pthread_mutex_unlock(sock->lock); |
2f77fc4b DG |
286 | return ret; |
287 | } | |
288 | ||
289 | /* | |
290 | * For each consumer socket in the consumer output object, send a destroy | |
291 | * relayd command. | |
292 | */ | |
293 | void consumer_output_send_destroy_relayd(struct consumer_output *consumer) | |
294 | { | |
2f77fc4b DG |
295 | struct lttng_ht_iter iter; |
296 | struct consumer_socket *socket; | |
297 | ||
298 | assert(consumer); | |
299 | ||
300 | /* Destroy any relayd connection */ | |
6dc3064a | 301 | if (consumer->type == CONSUMER_DST_NET) { |
2f77fc4b DG |
302 | rcu_read_lock(); |
303 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, | |
304 | node.node) { | |
c617c0c6 MD |
305 | int ret; |
306 | ||
2f77fc4b DG |
307 | /* Send destroy relayd command */ |
308 | ret = consumer_send_destroy_relayd(socket, consumer); | |
309 | if (ret < 0) { | |
c5c45efa | 310 | DBG("Unable to send destroy relayd command to consumer"); |
2f77fc4b DG |
311 | /* Continue since we MUST delete everything at this point. */ |
312 | } | |
313 | } | |
314 | rcu_read_unlock(); | |
315 | } | |
316 | } | |
317 | ||
a4b92340 DG |
318 | /* |
319 | * From a consumer_data structure, allocate and add a consumer socket to the | |
320 | * consumer output. | |
321 | * | |
322 | * Return 0 on success, else negative value on error | |
323 | */ | |
324 | int consumer_create_socket(struct consumer_data *data, | |
325 | struct consumer_output *output) | |
326 | { | |
327 | int ret = 0; | |
328 | struct consumer_socket *socket; | |
329 | ||
330 | assert(data); | |
331 | ||
332 | if (output == NULL || data->cmd_sock < 0) { | |
333 | /* | |
334 | * Not an error. Possible there is simply not spawned consumer or it's | |
335 | * disabled for the tracing session asking the socket. | |
336 | */ | |
337 | goto error; | |
338 | } | |
339 | ||
340 | rcu_read_lock(); | |
341 | socket = consumer_find_socket(data->cmd_sock, output); | |
342 | rcu_read_unlock(); | |
343 | if (socket == NULL) { | |
4ce514c4 | 344 | socket = consumer_allocate_socket(&data->cmd_sock); |
a4b92340 DG |
345 | if (socket == NULL) { |
346 | ret = -1; | |
347 | goto error; | |
348 | } | |
349 | ||
2f77fc4b | 350 | socket->registered = 0; |
a4b92340 DG |
351 | socket->lock = &data->lock; |
352 | rcu_read_lock(); | |
353 | consumer_add_socket(socket, output); | |
354 | rcu_read_unlock(); | |
355 | } | |
356 | ||
6dc3064a DG |
357 | socket->type = data->type; |
358 | ||
a4b92340 DG |
359 | DBG3("Consumer socket created (fd: %d) and added to output", |
360 | data->cmd_sock); | |
361 | ||
362 | error: | |
363 | return ret; | |
364 | } | |
365 | ||
7972aab2 DG |
366 | /* |
367 | * Return the consumer socket from the given consumer output with the right | |
368 | * bitness. On error, returns NULL. | |
369 | * | |
370 | * The caller MUST acquire a rcu read side lock and keep it until the socket | |
371 | * object reference is not needed anymore. | |
372 | */ | |
373 | struct consumer_socket *consumer_find_socket_by_bitness(int bits, | |
348a81dc | 374 | const struct consumer_output *consumer) |
7972aab2 DG |
375 | { |
376 | int consumer_fd; | |
377 | struct consumer_socket *socket = NULL; | |
378 | ||
379 | switch (bits) { | |
380 | case 64: | |
381 | consumer_fd = uatomic_read(&ust_consumerd64_fd); | |
382 | break; | |
383 | case 32: | |
384 | consumer_fd = uatomic_read(&ust_consumerd32_fd); | |
385 | break; | |
386 | default: | |
387 | assert(0); | |
388 | goto end; | |
389 | } | |
390 | ||
391 | socket = consumer_find_socket(consumer_fd, consumer); | |
392 | if (!socket) { | |
393 | ERR("Consumer socket fd %d not found in consumer obj %p", | |
394 | consumer_fd, consumer); | |
395 | } | |
396 | ||
397 | end: | |
398 | return socket; | |
399 | } | |
400 | ||
173af62f DG |
401 | /* |
402 | * Find a consumer_socket in a consumer_output hashtable. Read side lock must | |
403 | * be acquired before calling this function and across use of the | |
404 | * returned consumer_socket. | |
405 | */ | |
406 | struct consumer_socket *consumer_find_socket(int key, | |
348a81dc | 407 | const struct consumer_output *consumer) |
173af62f DG |
408 | { |
409 | struct lttng_ht_iter iter; | |
410 | struct lttng_ht_node_ulong *node; | |
411 | struct consumer_socket *socket = NULL; | |
412 | ||
413 | /* Negative keys are lookup failures */ | |
a4b92340 | 414 | if (key < 0 || consumer == NULL) { |
173af62f DG |
415 | return NULL; |
416 | } | |
417 | ||
418 | lttng_ht_lookup(consumer->socks, (void *)((unsigned long) key), | |
419 | &iter); | |
420 | node = lttng_ht_iter_get_node_ulong(&iter); | |
421 | if (node != NULL) { | |
422 | socket = caa_container_of(node, struct consumer_socket, node); | |
423 | } | |
424 | ||
425 | return socket; | |
426 | } | |
427 | ||
428 | /* | |
429 | * Allocate a new consumer_socket and return the pointer. | |
430 | */ | |
4ce514c4 | 431 | struct consumer_socket *consumer_allocate_socket(int *fd) |
173af62f DG |
432 | { |
433 | struct consumer_socket *socket = NULL; | |
434 | ||
4ce514c4 DG |
435 | assert(fd); |
436 | ||
173af62f DG |
437 | socket = zmalloc(sizeof(struct consumer_socket)); |
438 | if (socket == NULL) { | |
439 | PERROR("zmalloc consumer socket"); | |
440 | goto error; | |
441 | } | |
442 | ||
9363801e | 443 | socket->fd_ptr = fd; |
4ce514c4 | 444 | lttng_ht_node_init_ulong(&socket->node, *fd); |
173af62f DG |
445 | |
446 | error: | |
447 | return socket; | |
448 | } | |
449 | ||
450 | /* | |
451 | * Add consumer socket to consumer output object. Read side lock must be | |
452 | * acquired before calling this function. | |
453 | */ | |
454 | void consumer_add_socket(struct consumer_socket *sock, | |
455 | struct consumer_output *consumer) | |
456 | { | |
457 | assert(sock); | |
458 | assert(consumer); | |
459 | ||
460 | lttng_ht_add_unique_ulong(consumer->socks, &sock->node); | |
461 | } | |
462 | ||
463 | /* | |
348a81dc | 464 | * Delete consumer socket to consumer output object. Read side lock must be |
173af62f DG |
465 | * acquired before calling this function. |
466 | */ | |
467 | void consumer_del_socket(struct consumer_socket *sock, | |
468 | struct consumer_output *consumer) | |
469 | { | |
470 | int ret; | |
471 | struct lttng_ht_iter iter; | |
472 | ||
473 | assert(sock); | |
474 | assert(consumer); | |
475 | ||
476 | iter.iter.node = &sock->node.node; | |
477 | ret = lttng_ht_del(consumer->socks, &iter); | |
478 | assert(!ret); | |
479 | } | |
480 | ||
481 | /* | |
482 | * RCU destroy call function. | |
483 | */ | |
484 | static void destroy_socket_rcu(struct rcu_head *head) | |
485 | { | |
486 | struct lttng_ht_node_ulong *node = | |
487 | caa_container_of(head, struct lttng_ht_node_ulong, head); | |
488 | struct consumer_socket *socket = | |
489 | caa_container_of(node, struct consumer_socket, node); | |
490 | ||
491 | free(socket); | |
492 | } | |
493 | ||
494 | /* | |
495 | * Destroy and free socket pointer in a call RCU. Read side lock must be | |
496 | * acquired before calling this function. | |
497 | */ | |
498 | void consumer_destroy_socket(struct consumer_socket *sock) | |
499 | { | |
500 | assert(sock); | |
501 | ||
502 | /* | |
503 | * We DO NOT close the file descriptor here since it is global to the | |
2f77fc4b DG |
504 | * session daemon and is closed only if the consumer dies or a custom |
505 | * consumer was registered, | |
173af62f | 506 | */ |
2f77fc4b | 507 | if (sock->registered) { |
9363801e DG |
508 | DBG3("Consumer socket was registered. Closing fd %d", *sock->fd_ptr); |
509 | lttcomm_close_unix_sock(*sock->fd_ptr); | |
2f77fc4b | 510 | } |
173af62f DG |
511 | |
512 | call_rcu(&sock->node.head, destroy_socket_rcu); | |
513 | } | |
514 | ||
00e2e675 DG |
515 | /* |
516 | * Allocate and assign data to a consumer_output object. | |
517 | * | |
518 | * Return pointer to structure. | |
519 | */ | |
520 | struct consumer_output *consumer_create_output(enum consumer_dst_type type) | |
521 | { | |
522 | struct consumer_output *output = NULL; | |
523 | ||
524 | output = zmalloc(sizeof(struct consumer_output)); | |
525 | if (output == NULL) { | |
526 | PERROR("zmalloc consumer_output"); | |
527 | goto error; | |
528 | } | |
529 | ||
530 | /* By default, consumer output is enabled */ | |
531 | output->enabled = 1; | |
532 | output->type = type; | |
d88aee68 | 533 | output->net_seq_index = (uint64_t) -1ULL; |
6addfa37 | 534 | urcu_ref_init(&output->ref); |
173af62f DG |
535 | |
536 | output->socks = lttng_ht_new(0, LTTNG_HT_TYPE_ULONG); | |
00e2e675 DG |
537 | |
538 | error: | |
539 | return output; | |
540 | } | |
541 | ||
af706bb7 DG |
542 | /* |
543 | * Iterate over the consumer output socket hash table and destroy them. The | |
544 | * socket file descriptor are only closed if the consumer output was | |
545 | * registered meaning it's an external consumer. | |
546 | */ | |
547 | void consumer_destroy_output_sockets(struct consumer_output *obj) | |
548 | { | |
549 | struct lttng_ht_iter iter; | |
550 | struct consumer_socket *socket; | |
551 | ||
552 | if (!obj->socks) { | |
553 | return; | |
554 | } | |
555 | ||
556 | rcu_read_lock(); | |
557 | cds_lfht_for_each_entry(obj->socks->ht, &iter.iter, socket, node.node) { | |
558 | consumer_del_socket(socket, obj); | |
559 | consumer_destroy_socket(socket); | |
560 | } | |
561 | rcu_read_unlock(); | |
562 | } | |
563 | ||
00e2e675 DG |
564 | /* |
565 | * Delete the consumer_output object from the list and free the ptr. | |
36b588ed MD |
566 | * |
567 | * Should *NOT* be called with RCU read-side lock held. | |
00e2e675 | 568 | */ |
6addfa37 | 569 | static void consumer_release_output(struct urcu_ref *ref) |
00e2e675 | 570 | { |
6addfa37 MD |
571 | struct consumer_output *obj = |
572 | caa_container_of(ref, struct consumer_output, ref); | |
00e2e675 | 573 | |
af706bb7 | 574 | consumer_destroy_output_sockets(obj); |
2f77fc4b | 575 | |
af706bb7 | 576 | if (obj->socks) { |
2f77fc4b | 577 | /* Finally destroy HT */ |
0b2dc8df | 578 | ht_cleanup_push(obj->socks); |
00e2e675 | 579 | } |
173af62f | 580 | |
00e2e675 DG |
581 | free(obj); |
582 | } | |
583 | ||
6addfa37 MD |
584 | /* |
585 | * Get the consumer_output object. | |
586 | */ | |
587 | void consumer_output_get(struct consumer_output *obj) | |
588 | { | |
589 | urcu_ref_get(&obj->ref); | |
590 | } | |
591 | ||
592 | /* | |
593 | * Put the consumer_output object. | |
594 | * | |
595 | * Should *NOT* be called with RCU read-side lock held. | |
596 | */ | |
597 | void consumer_output_put(struct consumer_output *obj) | |
598 | { | |
599 | if (!obj) { | |
600 | return; | |
601 | } | |
602 | urcu_ref_put(&obj->ref, consumer_release_output); | |
603 | } | |
604 | ||
00e2e675 DG |
605 | /* |
606 | * Copy consumer output and returned the newly allocated copy. | |
36b588ed MD |
607 | * |
608 | * Should *NOT* be called with RCU read-side lock held. | |
00e2e675 | 609 | */ |
b178f53e | 610 | struct consumer_output *consumer_copy_output(struct consumer_output *src) |
00e2e675 | 611 | { |
6dc3064a | 612 | int ret; |
00e2e675 DG |
613 | struct consumer_output *output; |
614 | ||
b178f53e | 615 | assert(src); |
00e2e675 | 616 | |
b178f53e | 617 | output = consumer_create_output(src->type); |
00e2e675 | 618 | if (output == NULL) { |
6addfa37 | 619 | goto end; |
00e2e675 | 620 | } |
b178f53e JG |
621 | output->enabled = src->enabled; |
622 | output->net_seq_index = src->net_seq_index; | |
623 | memcpy(output->domain_subdir, src->domain_subdir, | |
624 | sizeof(output->domain_subdir)); | |
625 | output->snapshot = src->snapshot; | |
626 | output->relay_major_version = src->relay_major_version; | |
627 | output->relay_minor_version = src->relay_minor_version; | |
628 | memcpy(&output->dst, &src->dst, sizeof(output->dst)); | |
629 | ret = consumer_copy_sockets(output, src); | |
6dc3064a | 630 | if (ret < 0) { |
6addfa37 | 631 | goto error_put; |
6dc3064a | 632 | } |
6addfa37 | 633 | end: |
6dc3064a DG |
634 | return output; |
635 | ||
6addfa37 MD |
636 | error_put: |
637 | consumer_output_put(output); | |
6dc3064a DG |
638 | return NULL; |
639 | } | |
640 | ||
641 | /* | |
642 | * Copy consumer sockets from src to dst. | |
643 | * | |
644 | * Return 0 on success or else a negative value. | |
645 | */ | |
646 | int consumer_copy_sockets(struct consumer_output *dst, | |
647 | struct consumer_output *src) | |
648 | { | |
649 | int ret = 0; | |
650 | struct lttng_ht_iter iter; | |
651 | struct consumer_socket *socket, *copy_sock; | |
652 | ||
653 | assert(dst); | |
654 | assert(src); | |
655 | ||
b82c5c4d | 656 | rcu_read_lock(); |
6dc3064a DG |
657 | cds_lfht_for_each_entry(src->socks->ht, &iter.iter, socket, node.node) { |
658 | /* Ignore socket that are already there. */ | |
9363801e | 659 | copy_sock = consumer_find_socket(*socket->fd_ptr, dst); |
6dc3064a DG |
660 | if (copy_sock) { |
661 | continue; | |
662 | } | |
663 | ||
173af62f | 664 | /* Create new socket object. */ |
9363801e | 665 | copy_sock = consumer_allocate_socket(socket->fd_ptr); |
173af62f | 666 | if (copy_sock == NULL) { |
b82c5c4d | 667 | rcu_read_unlock(); |
6dc3064a DG |
668 | ret = -ENOMEM; |
669 | goto error; | |
173af62f DG |
670 | } |
671 | ||
09a90bcd | 672 | copy_sock->registered = socket->registered; |
6dc3064a DG |
673 | /* |
674 | * This is valid because this lock is shared accross all consumer | |
675 | * object being the global lock of the consumer data structure of the | |
676 | * session daemon. | |
677 | */ | |
173af62f | 678 | copy_sock->lock = socket->lock; |
6dc3064a | 679 | consumer_add_socket(copy_sock, dst); |
173af62f | 680 | } |
b82c5c4d | 681 | rcu_read_unlock(); |
173af62f | 682 | |
00e2e675 | 683 | error: |
6dc3064a | 684 | return ret; |
00e2e675 DG |
685 | } |
686 | ||
687 | /* | |
b178f53e | 688 | * Set network URI to the consumer output. |
00e2e675 | 689 | * |
ad20f474 DG |
690 | * Return 0 on success. Return 1 if the URI were equal. Else, negative value on |
691 | * error. | |
00e2e675 | 692 | */ |
b178f53e JG |
693 | int consumer_set_network_uri(const struct ltt_session *session, |
694 | struct consumer_output *output, | |
00e2e675 DG |
695 | struct lttng_uri *uri) |
696 | { | |
697 | int ret; | |
00e2e675 DG |
698 | struct lttng_uri *dst_uri = NULL; |
699 | ||
700 | /* Code flow error safety net. */ | |
b178f53e | 701 | assert(output); |
00e2e675 DG |
702 | assert(uri); |
703 | ||
704 | switch (uri->stype) { | |
705 | case LTTNG_STREAM_CONTROL: | |
b178f53e JG |
706 | dst_uri = &output->dst.net.control; |
707 | output->dst.net.control_isset = 1; | |
00e2e675 DG |
708 | if (uri->port == 0) { |
709 | /* Assign default port. */ | |
710 | uri->port = DEFAULT_NETWORK_CONTROL_PORT; | |
a74934ba | 711 | } else { |
b178f53e JG |
712 | if (output->dst.net.data_isset && uri->port == |
713 | output->dst.net.data.port) { | |
a74934ba DG |
714 | ret = -LTTNG_ERR_INVALID; |
715 | goto error; | |
716 | } | |
00e2e675 | 717 | } |
ad20f474 | 718 | DBG3("Consumer control URI set with port %d", uri->port); |
00e2e675 DG |
719 | break; |
720 | case LTTNG_STREAM_DATA: | |
b178f53e JG |
721 | dst_uri = &output->dst.net.data; |
722 | output->dst.net.data_isset = 1; | |
00e2e675 DG |
723 | if (uri->port == 0) { |
724 | /* Assign default port. */ | |
725 | uri->port = DEFAULT_NETWORK_DATA_PORT; | |
a74934ba | 726 | } else { |
b178f53e JG |
727 | if (output->dst.net.control_isset && uri->port == |
728 | output->dst.net.control.port) { | |
a74934ba DG |
729 | ret = -LTTNG_ERR_INVALID; |
730 | goto error; | |
731 | } | |
00e2e675 | 732 | } |
ad20f474 | 733 | DBG3("Consumer data URI set with port %d", uri->port); |
00e2e675 DG |
734 | break; |
735 | default: | |
736 | ERR("Set network uri type unknown %d", uri->stype); | |
a74934ba | 737 | ret = -LTTNG_ERR_INVALID; |
00e2e675 DG |
738 | goto error; |
739 | } | |
740 | ||
741 | ret = uri_compare(dst_uri, uri); | |
742 | if (!ret) { | |
743 | /* Same URI, don't touch it and return success. */ | |
744 | DBG3("URI network compare are the same"); | |
ad20f474 | 745 | goto equal; |
00e2e675 DG |
746 | } |
747 | ||
748 | /* URIs were not equal, replacing it. */ | |
00e2e675 | 749 | memcpy(dst_uri, uri, sizeof(struct lttng_uri)); |
b178f53e JG |
750 | output->type = CONSUMER_DST_NET; |
751 | if (dst_uri->stype != LTTNG_STREAM_CONTROL) { | |
752 | /* Only the control uri needs to contain the path. */ | |
753 | goto end; | |
754 | } | |
00e2e675 | 755 | |
b178f53e JG |
756 | /* |
757 | * If the user has specified a subdir as part of the control | |
758 | * URL, the session's base output directory is: | |
759 | * /RELAYD_OUTPUT_PATH/HOSTNAME/USER_SPECIFIED_DIR | |
760 | * | |
761 | * Hence, the "base_dir" from which all stream files and | |
762 | * session rotation chunks are created takes the form | |
763 | * /HOSTNAME/USER_SPECIFIED_DIR | |
764 | * | |
765 | * If the user has not specified an output directory as part of | |
766 | * the control URL, the base output directory has the form: | |
767 | * /RELAYD_OUTPUT_PATH/HOSTNAME/SESSION_NAME-CREATION_TIME | |
768 | * | |
769 | * Hence, the "base_dir" from which all stream files and | |
770 | * session rotation chunks are created takes the form | |
771 | * /HOSTNAME/SESSION_NAME-CREATION_TIME | |
772 | * | |
773 | * Note that automatically generated session names already | |
774 | * contain the session's creation time. In that case, the | |
775 | * creation time is omitted to prevent it from being duplicated | |
776 | * in the final directory hierarchy. | |
777 | */ | |
778 | if (*uri->subdir) { | |
779 | if (strstr(uri->subdir, "../")) { | |
780 | ERR("Network URI subdirs are not allowed to walk up the path hierarchy"); | |
781 | ret = -LTTNG_ERR_INVALID; | |
00e2e675 DG |
782 | goto error; |
783 | } | |
b178f53e JG |
784 | ret = snprintf(output->dst.net.base_dir, |
785 | sizeof(output->dst.net.base_dir), | |
786 | "/%s/%s/", session->hostname, uri->subdir); | |
787 | } else { | |
788 | if (session->has_auto_generated_name) { | |
789 | ret = snprintf(output->dst.net.base_dir, | |
790 | sizeof(output->dst.net.base_dir), | |
791 | "/%s/%s/", session->hostname, | |
792 | session->name); | |
793 | } else { | |
794 | char session_creation_datetime[16]; | |
795 | size_t strftime_ret; | |
796 | struct tm *timeinfo; | |
00e2e675 | 797 | |
b178f53e JG |
798 | timeinfo = localtime(&session->creation_time); |
799 | if (!timeinfo) { | |
800 | ret = -LTTNG_ERR_FATAL; | |
801 | goto error; | |
802 | } | |
803 | strftime_ret = strftime(session_creation_datetime, | |
804 | sizeof(session_creation_datetime), | |
805 | "%Y%m%d-%H%M%S", timeinfo); | |
806 | if (strftime_ret == 0) { | |
807 | ERR("Failed to format session creation timestamp while setting network URI"); | |
808 | ret = -LTTNG_ERR_FATAL; | |
809 | goto error; | |
810 | } | |
811 | ret = snprintf(output->dst.net.base_dir, | |
812 | sizeof(output->dst.net.base_dir), | |
813 | "/%s/%s-%s/", session->hostname, | |
814 | session->name, | |
815 | session_creation_datetime); | |
bfc6eff0 | 816 | } |
00e2e675 | 817 | } |
b178f53e JG |
818 | if (ret >= sizeof(output->dst.net.base_dir)) { |
819 | ret = -LTTNG_ERR_INVALID; | |
820 | ERR("Truncation occurred while setting network output base directory"); | |
821 | goto error; | |
822 | } else if (ret == -1) { | |
823 | ret = -LTTNG_ERR_INVALID; | |
824 | PERROR("Error occurred while setting network output base directory"); | |
825 | goto error; | |
826 | } | |
827 | ||
828 | DBG3("Consumer set network uri base_dir path %s", | |
829 | output->dst.net.base_dir); | |
00e2e675 | 830 | |
b178f53e | 831 | end: |
00e2e675 | 832 | return 0; |
ad20f474 DG |
833 | equal: |
834 | return 1; | |
00e2e675 | 835 | error: |
a74934ba | 836 | return ret; |
00e2e675 DG |
837 | } |
838 | ||
839 | /* | |
840 | * Send file descriptor to consumer via sock. | |
9a318688 JG |
841 | * |
842 | * The consumer socket lock must be held by the caller. | |
00e2e675 | 843 | */ |
ac2f30af JG |
844 | int consumer_send_fds(struct consumer_socket *sock, const int *fds, |
845 | size_t nb_fd) | |
00e2e675 DG |
846 | { |
847 | int ret; | |
848 | ||
849 | assert(fds); | |
f50f23d9 | 850 | assert(sock); |
00e2e675 | 851 | assert(nb_fd > 0); |
05dac598 | 852 | assert(pthread_mutex_trylock(sock->lock) == EBUSY); |
00e2e675 | 853 | |
9363801e | 854 | ret = lttcomm_send_fds_unix_sock(*sock->fd_ptr, fds, nb_fd); |
00e2e675 | 855 | if (ret < 0) { |
3448e266 | 856 | /* The above call will print a PERROR on error. */ |
9363801e | 857 | DBG("Error when sending consumer fds on sock %d", *sock->fd_ptr); |
00e2e675 DG |
858 | goto error; |
859 | } | |
860 | ||
f50f23d9 | 861 | ret = consumer_recv_status_reply(sock); |
00e2e675 DG |
862 | error: |
863 | return ret; | |
864 | } | |
865 | ||
ffe60014 DG |
866 | /* |
867 | * Consumer send communication message structure to consumer. | |
9a318688 JG |
868 | * |
869 | * The consumer socket lock must be held by the caller. | |
ffe60014 DG |
870 | */ |
871 | int consumer_send_msg(struct consumer_socket *sock, | |
872 | struct lttcomm_consumer_msg *msg) | |
873 | { | |
874 | int ret; | |
875 | ||
876 | assert(msg); | |
877 | assert(sock); | |
211b734b | 878 | assert(pthread_mutex_trylock(sock->lock) == EBUSY); |
ffe60014 | 879 | |
52898cb1 | 880 | ret = consumer_socket_send(sock, msg, sizeof(struct lttcomm_consumer_msg)); |
ffe60014 | 881 | if (ret < 0) { |
ffe60014 DG |
882 | goto error; |
883 | } | |
884 | ||
885 | ret = consumer_recv_status_reply(sock); | |
886 | ||
887 | error: | |
888 | return ret; | |
889 | } | |
890 | ||
00e2e675 DG |
891 | /* |
892 | * Consumer send channel communication message structure to consumer. | |
9a318688 JG |
893 | * |
894 | * The consumer socket lock must be held by the caller. | |
00e2e675 | 895 | */ |
f50f23d9 DG |
896 | int consumer_send_channel(struct consumer_socket *sock, |
897 | struct lttcomm_consumer_msg *msg) | |
00e2e675 DG |
898 | { |
899 | int ret; | |
900 | ||
901 | assert(msg); | |
f50f23d9 | 902 | assert(sock); |
00e2e675 | 903 | |
52898cb1 | 904 | ret = consumer_send_msg(sock, msg); |
00e2e675 | 905 | if (ret < 0) { |
00e2e675 DG |
906 | goto error; |
907 | } | |
908 | ||
909 | error: | |
910 | return ret; | |
911 | } | |
912 | ||
ffe60014 DG |
913 | /* |
914 | * Populate the given consumer msg structure with the ask_channel command | |
915 | * information. | |
916 | */ | |
917 | void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg, | |
918 | uint64_t subbuf_size, | |
919 | uint64_t num_subbuf, | |
920 | int overwrite, | |
921 | unsigned int switch_timer_interval, | |
922 | unsigned int read_timer_interval, | |
ecc48a90 | 923 | unsigned int live_timer_interval, |
e9404c27 | 924 | unsigned int monitor_timer_interval, |
ffe60014 DG |
925 | int output, |
926 | int type, | |
927 | uint64_t session_id, | |
928 | const char *pathname, | |
929 | const char *name, | |
d88aee68 DG |
930 | uint64_t relayd_id, |
931 | uint64_t key, | |
7972aab2 | 932 | unsigned char *uuid, |
1624d5b7 JD |
933 | uint32_t chan_id, |
934 | uint64_t tracefile_size, | |
2bba9e53 | 935 | uint64_t tracefile_count, |
1950109e | 936 | uint64_t session_id_per_pid, |
567eb353 | 937 | unsigned int monitor, |
d7ba1388 | 938 | uint32_t ust_app_uid, |
491d1539 | 939 | int64_t blocking_timeout, |
3d071855 | 940 | const char *root_shm_path, |
e098433c | 941 | const char *shm_path, |
1b0bebcb JG |
942 | struct lttng_trace_chunk *trace_chunk, |
943 | const struct lttng_credentials *buffer_credentials) | |
ffe60014 DG |
944 | { |
945 | assert(msg); | |
946 | ||
d2956687 | 947 | /* Zeroed structure */ |
ffe60014 | 948 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); |
d2956687 JG |
949 | msg->u.ask_channel.buffer_credentials.uid = UINT32_MAX; |
950 | msg->u.ask_channel.buffer_credentials.gid = UINT32_MAX; | |
951 | ||
d2956687 JG |
952 | if (trace_chunk) { |
953 | uint64_t chunk_id; | |
954 | enum lttng_trace_chunk_status chunk_status; | |
d2956687 JG |
955 | |
956 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, &chunk_id); | |
957 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
958 | LTTNG_OPTIONAL_SET(&msg->u.ask_channel.chunk_id, chunk_id); | |
d2956687 | 959 | } |
1b0bebcb JG |
960 | msg->u.ask_channel.buffer_credentials.uid = buffer_credentials->uid; |
961 | msg->u.ask_channel.buffer_credentials.gid = buffer_credentials->gid; | |
ffe60014 DG |
962 | |
963 | msg->cmd_type = LTTNG_CONSUMER_ASK_CHANNEL_CREATION; | |
964 | msg->u.ask_channel.subbuf_size = subbuf_size; | |
965 | msg->u.ask_channel.num_subbuf = num_subbuf ; | |
966 | msg->u.ask_channel.overwrite = overwrite; | |
967 | msg->u.ask_channel.switch_timer_interval = switch_timer_interval; | |
968 | msg->u.ask_channel.read_timer_interval = read_timer_interval; | |
ecc48a90 | 969 | msg->u.ask_channel.live_timer_interval = live_timer_interval; |
e9404c27 | 970 | msg->u.ask_channel.monitor_timer_interval = monitor_timer_interval; |
ffe60014 DG |
971 | msg->u.ask_channel.output = output; |
972 | msg->u.ask_channel.type = type; | |
973 | msg->u.ask_channel.session_id = session_id; | |
1950109e | 974 | msg->u.ask_channel.session_id_per_pid = session_id_per_pid; |
ffe60014 DG |
975 | msg->u.ask_channel.relayd_id = relayd_id; |
976 | msg->u.ask_channel.key = key; | |
7972aab2 | 977 | msg->u.ask_channel.chan_id = chan_id; |
1624d5b7 JD |
978 | msg->u.ask_channel.tracefile_size = tracefile_size; |
979 | msg->u.ask_channel.tracefile_count = tracefile_count; | |
2bba9e53 | 980 | msg->u.ask_channel.monitor = monitor; |
567eb353 | 981 | msg->u.ask_channel.ust_app_uid = ust_app_uid; |
491d1539 | 982 | msg->u.ask_channel.blocking_timeout = blocking_timeout; |
ffe60014 DG |
983 | |
984 | memcpy(msg->u.ask_channel.uuid, uuid, sizeof(msg->u.ask_channel.uuid)); | |
985 | ||
10a50311 JD |
986 | if (pathname) { |
987 | strncpy(msg->u.ask_channel.pathname, pathname, | |
988 | sizeof(msg->u.ask_channel.pathname)); | |
989 | msg->u.ask_channel.pathname[sizeof(msg->u.ask_channel.pathname)-1] = '\0'; | |
990 | } | |
ffe60014 DG |
991 | |
992 | strncpy(msg->u.ask_channel.name, name, sizeof(msg->u.ask_channel.name)); | |
993 | msg->u.ask_channel.name[sizeof(msg->u.ask_channel.name) - 1] = '\0'; | |
d7ba1388 | 994 | |
3d071855 MD |
995 | if (root_shm_path) { |
996 | strncpy(msg->u.ask_channel.root_shm_path, root_shm_path, | |
997 | sizeof(msg->u.ask_channel.root_shm_path)); | |
998 | msg->u.ask_channel.root_shm_path[sizeof(msg->u.ask_channel.root_shm_path) - 1] = '\0'; | |
999 | } | |
d7ba1388 MD |
1000 | if (shm_path) { |
1001 | strncpy(msg->u.ask_channel.shm_path, shm_path, | |
1002 | sizeof(msg->u.ask_channel.shm_path)); | |
1003 | msg->u.ask_channel.shm_path[sizeof(msg->u.ask_channel.shm_path) - 1] = '\0'; | |
1004 | } | |
ffe60014 DG |
1005 | } |
1006 | ||
00e2e675 DG |
1007 | /* |
1008 | * Init channel communication message structure. | |
1009 | */ | |
638e7b4e | 1010 | void consumer_init_add_channel_comm_msg(struct lttcomm_consumer_msg *msg, |
d88aee68 | 1011 | uint64_t channel_key, |
ffe60014 DG |
1012 | uint64_t session_id, |
1013 | const char *pathname, | |
1014 | uid_t uid, | |
1015 | gid_t gid, | |
d88aee68 | 1016 | uint64_t relayd_id, |
c30aaa51 | 1017 | const char *name, |
ffe60014 DG |
1018 | unsigned int nb_init_streams, |
1019 | enum lttng_event_output output, | |
1624d5b7 JD |
1020 | int type, |
1021 | uint64_t tracefile_size, | |
2bba9e53 | 1022 | uint64_t tracefile_count, |
ecc48a90 | 1023 | unsigned int monitor, |
e9404c27 | 1024 | unsigned int live_timer_interval, |
d2956687 JG |
1025 | unsigned int monitor_timer_interval, |
1026 | struct lttng_trace_chunk *trace_chunk) | |
00e2e675 DG |
1027 | { |
1028 | assert(msg); | |
1029 | ||
00e2e675 DG |
1030 | /* Zeroed structure */ |
1031 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); | |
1032 | ||
d2956687 JG |
1033 | if (trace_chunk) { |
1034 | uint64_t chunk_id; | |
1035 | enum lttng_trace_chunk_status chunk_status; | |
1036 | ||
1037 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, &chunk_id); | |
1038 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
1039 | LTTNG_OPTIONAL_SET(&msg->u.channel.chunk_id, chunk_id); | |
1040 | } | |
1041 | ||
00e2e675 | 1042 | /* Send channel */ |
638e7b4e | 1043 | msg->cmd_type = LTTNG_CONSUMER_ADD_CHANNEL; |
00e2e675 | 1044 | msg->u.channel.channel_key = channel_key; |
ffe60014 | 1045 | msg->u.channel.session_id = session_id; |
ffe60014 | 1046 | msg->u.channel.relayd_id = relayd_id; |
c30aaa51 | 1047 | msg->u.channel.nb_init_streams = nb_init_streams; |
ffe60014 DG |
1048 | msg->u.channel.output = output; |
1049 | msg->u.channel.type = type; | |
1624d5b7 JD |
1050 | msg->u.channel.tracefile_size = tracefile_size; |
1051 | msg->u.channel.tracefile_count = tracefile_count; | |
2bba9e53 | 1052 | msg->u.channel.monitor = monitor; |
ecc48a90 | 1053 | msg->u.channel.live_timer_interval = live_timer_interval; |
e9404c27 | 1054 | msg->u.channel.monitor_timer_interval = monitor_timer_interval; |
ffe60014 DG |
1055 | |
1056 | strncpy(msg->u.channel.pathname, pathname, | |
1057 | sizeof(msg->u.channel.pathname)); | |
1058 | msg->u.channel.pathname[sizeof(msg->u.channel.pathname) - 1] = '\0'; | |
1059 | ||
1060 | strncpy(msg->u.channel.name, name, sizeof(msg->u.channel.name)); | |
1061 | msg->u.channel.name[sizeof(msg->u.channel.name) - 1] = '\0'; | |
00e2e675 DG |
1062 | } |
1063 | ||
1064 | /* | |
1065 | * Init stream communication message structure. | |
1066 | */ | |
e098433c | 1067 | void consumer_init_add_stream_comm_msg(struct lttcomm_consumer_msg *msg, |
d88aee68 DG |
1068 | uint64_t channel_key, |
1069 | uint64_t stream_key, | |
d2956687 | 1070 | int32_t cpu) |
00e2e675 DG |
1071 | { |
1072 | assert(msg); | |
1073 | ||
1074 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); | |
1075 | ||
e098433c | 1076 | msg->cmd_type = LTTNG_CONSUMER_ADD_STREAM; |
00e2e675 DG |
1077 | msg->u.stream.channel_key = channel_key; |
1078 | msg->u.stream.stream_key = stream_key; | |
ffe60014 | 1079 | msg->u.stream.cpu = cpu; |
00e2e675 DG |
1080 | } |
1081 | ||
a4baae1b JD |
1082 | void consumer_init_streams_sent_comm_msg(struct lttcomm_consumer_msg *msg, |
1083 | enum lttng_consumer_command cmd, | |
1084 | uint64_t channel_key, uint64_t net_seq_idx) | |
1085 | { | |
1086 | assert(msg); | |
1087 | ||
1088 | memset(msg, 0, sizeof(struct lttcomm_consumer_msg)); | |
1089 | ||
1090 | msg->cmd_type = cmd; | |
1091 | msg->u.sent_streams.channel_key = channel_key; | |
1092 | msg->u.sent_streams.net_seq_idx = net_seq_idx; | |
1093 | } | |
1094 | ||
00e2e675 DG |
1095 | /* |
1096 | * Send stream communication structure to the consumer. | |
1097 | */ | |
f50f23d9 DG |
1098 | int consumer_send_stream(struct consumer_socket *sock, |
1099 | struct consumer_output *dst, struct lttcomm_consumer_msg *msg, | |
ac2f30af | 1100 | const int *fds, size_t nb_fd) |
00e2e675 DG |
1101 | { |
1102 | int ret; | |
1103 | ||
1104 | assert(msg); | |
1105 | assert(dst); | |
f50f23d9 | 1106 | assert(sock); |
ffe60014 | 1107 | assert(fds); |
00e2e675 | 1108 | |
52898cb1 | 1109 | ret = consumer_send_msg(sock, msg); |
f50f23d9 DG |
1110 | if (ret < 0) { |
1111 | goto error; | |
1112 | } | |
1113 | ||
00e2e675 DG |
1114 | ret = consumer_send_fds(sock, fds, nb_fd); |
1115 | if (ret < 0) { | |
1116 | goto error; | |
1117 | } | |
1118 | ||
1119 | error: | |
1120 | return ret; | |
1121 | } | |
37278a1e DG |
1122 | |
1123 | /* | |
1124 | * Send relayd socket to consumer associated with a session name. | |
1125 | * | |
43fade62 JG |
1126 | * The consumer socket lock must be held by the caller. |
1127 | * | |
37278a1e DG |
1128 | * On success return positive value. On error, negative value. |
1129 | */ | |
f50f23d9 | 1130 | int consumer_send_relayd_socket(struct consumer_socket *consumer_sock, |
6151a90f | 1131 | struct lttcomm_relayd_sock *rsock, struct consumer_output *consumer, |
d3e2ba59 | 1132 | enum lttng_stream_type type, uint64_t session_id, |
fb9a95c4 | 1133 | const char *session_name, const char *hostname, |
6fa5fe7c | 1134 | const char *base_path, int session_live_timer, |
46ef2188 MD |
1135 | const uint64_t *current_chunk_id, time_t session_creation_time, |
1136 | bool session_name_contains_creation_time) | |
37278a1e DG |
1137 | { |
1138 | int ret; | |
1139 | struct lttcomm_consumer_msg msg; | |
1140 | ||
1141 | /* Code flow error. Safety net. */ | |
6151a90f | 1142 | assert(rsock); |
37278a1e | 1143 | assert(consumer); |
f50f23d9 | 1144 | assert(consumer_sock); |
37278a1e | 1145 | |
53efb85a | 1146 | memset(&msg, 0, sizeof(msg)); |
37278a1e DG |
1147 | /* Bail out if consumer is disabled */ |
1148 | if (!consumer->enabled) { | |
f73fabfd | 1149 | ret = LTTNG_OK; |
37278a1e DG |
1150 | goto error; |
1151 | } | |
1152 | ||
d3e2ba59 | 1153 | if (type == LTTNG_STREAM_CONTROL) { |
ecd1a12f MD |
1154 | char output_path[LTTNG_PATH_MAX] = {}; |
1155 | ||
d3e2ba59 JD |
1156 | ret = relayd_create_session(rsock, |
1157 | &msg.u.relayd_sock.relayd_session_id, | |
6fa5fe7c MD |
1158 | session_name, hostname, base_path, |
1159 | session_live_timer, | |
658f12fa | 1160 | consumer->snapshot, session_id, |
db1da059 | 1161 | sessiond_uuid, current_chunk_id, |
46ef2188 | 1162 | session_creation_time, |
ecd1a12f MD |
1163 | session_name_contains_creation_time, |
1164 | output_path); | |
d3e2ba59 JD |
1165 | if (ret < 0) { |
1166 | /* Close the control socket. */ | |
1167 | (void) relayd_close(rsock); | |
1168 | goto error; | |
1169 | } | |
ecd1a12f MD |
1170 | DBG("Created session on relay, output path reply: %s", |
1171 | output_path); | |
d3e2ba59 JD |
1172 | } |
1173 | ||
37278a1e DG |
1174 | msg.cmd_type = LTTNG_CONSUMER_ADD_RELAYD_SOCKET; |
1175 | /* | |
1176 | * Assign network consumer output index using the temporary consumer since | |
1177 | * this call should only be made from within a set_consumer_uri() function | |
1178 | * call in the session daemon. | |
1179 | */ | |
1180 | msg.u.relayd_sock.net_index = consumer->net_seq_index; | |
1181 | msg.u.relayd_sock.type = type; | |
46e6455f | 1182 | msg.u.relayd_sock.session_id = session_id; |
6151a90f | 1183 | memcpy(&msg.u.relayd_sock.sock, rsock, sizeof(msg.u.relayd_sock.sock)); |
37278a1e | 1184 | |
9363801e | 1185 | DBG3("Sending relayd sock info to consumer on %d", *consumer_sock->fd_ptr); |
52898cb1 | 1186 | ret = consumer_send_msg(consumer_sock, &msg); |
f50f23d9 DG |
1187 | if (ret < 0) { |
1188 | goto error; | |
1189 | } | |
1190 | ||
37278a1e | 1191 | DBG3("Sending relayd socket file descriptor to consumer"); |
6151a90f | 1192 | ret = consumer_send_fds(consumer_sock, &rsock->sock.fd, 1); |
37278a1e DG |
1193 | if (ret < 0) { |
1194 | goto error; | |
1195 | } | |
1196 | ||
1197 | DBG2("Consumer relayd socket sent"); | |
1198 | ||
1199 | error: | |
1200 | return ret; | |
1201 | } | |
173af62f | 1202 | |
62c43103 JD |
1203 | static |
1204 | int consumer_send_pipe(struct consumer_socket *consumer_sock, | |
1205 | enum lttng_consumer_command cmd, int pipe) | |
e9404c27 JG |
1206 | { |
1207 | int ret; | |
1208 | struct lttcomm_consumer_msg msg; | |
62c43103 JD |
1209 | const char *pipe_name; |
1210 | const char *command_name; | |
1211 | ||
1212 | switch (cmd) { | |
1213 | case LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE: | |
1214 | pipe_name = "channel monitor"; | |
1215 | command_name = "SET_CHANNEL_MONITOR_PIPE"; | |
1216 | break; | |
62c43103 JD |
1217 | default: |
1218 | ERR("Unexpected command received in %s (cmd = %d)", __func__, | |
1219 | (int) cmd); | |
1220 | abort(); | |
1221 | } | |
e9404c27 JG |
1222 | |
1223 | /* Code flow error. Safety net. */ | |
1224 | ||
1225 | memset(&msg, 0, sizeof(msg)); | |
62c43103 | 1226 | msg.cmd_type = cmd; |
e9404c27 | 1227 | |
3e4dc117 | 1228 | pthread_mutex_lock(consumer_sock->lock); |
62c43103 | 1229 | DBG3("Sending %s command to consumer", command_name); |
e9404c27 JG |
1230 | ret = consumer_send_msg(consumer_sock, &msg); |
1231 | if (ret < 0) { | |
1232 | goto error; | |
1233 | } | |
1234 | ||
62c43103 JD |
1235 | DBG3("Sending %s pipe %d to consumer on socket %d", |
1236 | pipe_name, | |
e9404c27 JG |
1237 | pipe, *consumer_sock->fd_ptr); |
1238 | ret = consumer_send_fds(consumer_sock, &pipe, 1); | |
1239 | if (ret < 0) { | |
1240 | goto error; | |
1241 | } | |
1242 | ||
62c43103 | 1243 | DBG2("%s pipe successfully sent", pipe_name); |
e9404c27 | 1244 | error: |
3e4dc117 | 1245 | pthread_mutex_unlock(consumer_sock->lock); |
e9404c27 JG |
1246 | return ret; |
1247 | } | |
1248 | ||
62c43103 JD |
1249 | int consumer_send_channel_monitor_pipe(struct consumer_socket *consumer_sock, |
1250 | int pipe) | |
1251 | { | |
1252 | return consumer_send_pipe(consumer_sock, | |
1253 | LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE, pipe); | |
1254 | } | |
1255 | ||
806e2684 | 1256 | /* |
5e280d77 MD |
1257 | * Ask the consumer if the data is pending for the specific session id. |
1258 | * Returns 1 if data is pending, 0 otherwise, or < 0 on error. | |
806e2684 | 1259 | */ |
d88aee68 | 1260 | int consumer_is_data_pending(uint64_t session_id, |
806e2684 DG |
1261 | struct consumer_output *consumer) |
1262 | { | |
1263 | int ret; | |
6d805429 | 1264 | int32_t ret_code = 0; /* Default is that the data is NOT pending */ |
806e2684 DG |
1265 | struct consumer_socket *socket; |
1266 | struct lttng_ht_iter iter; | |
1267 | struct lttcomm_consumer_msg msg; | |
1268 | ||
1269 | assert(consumer); | |
1270 | ||
53efb85a | 1271 | DBG3("Consumer data pending for id %" PRIu64, session_id); |
806e2684 | 1272 | |
53efb85a MD |
1273 | memset(&msg, 0, sizeof(msg)); |
1274 | msg.cmd_type = LTTNG_CONSUMER_DATA_PENDING; | |
d88aee68 | 1275 | msg.u.data_pending.session_id = session_id; |
806e2684 | 1276 | |
c8f59ee5 | 1277 | /* Send command for each consumer */ |
b82c5c4d | 1278 | rcu_read_lock(); |
806e2684 DG |
1279 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, |
1280 | node.node) { | |
806e2684 | 1281 | pthread_mutex_lock(socket->lock); |
52898cb1 | 1282 | ret = consumer_socket_send(socket, &msg, sizeof(msg)); |
806e2684 | 1283 | if (ret < 0) { |
806e2684 | 1284 | pthread_mutex_unlock(socket->lock); |
b82c5c4d | 1285 | goto error_unlock; |
806e2684 DG |
1286 | } |
1287 | ||
f50f23d9 DG |
1288 | /* |
1289 | * No need for a recv reply status because the answer to the command is | |
1290 | * the reply status message. | |
1291 | */ | |
1292 | ||
52898cb1 DG |
1293 | ret = consumer_socket_recv(socket, &ret_code, sizeof(ret_code)); |
1294 | if (ret < 0) { | |
806e2684 | 1295 | pthread_mutex_unlock(socket->lock); |
b82c5c4d | 1296 | goto error_unlock; |
806e2684 | 1297 | } |
806e2684 DG |
1298 | pthread_mutex_unlock(socket->lock); |
1299 | ||
6d805429 | 1300 | if (ret_code == 1) { |
806e2684 DG |
1301 | break; |
1302 | } | |
1303 | } | |
b82c5c4d | 1304 | rcu_read_unlock(); |
806e2684 | 1305 | |
d88aee68 DG |
1306 | DBG("Consumer data is %s pending for session id %" PRIu64, |
1307 | ret_code == 1 ? "" : "NOT", session_id); | |
806e2684 DG |
1308 | return ret_code; |
1309 | ||
b82c5c4d DG |
1310 | error_unlock: |
1311 | rcu_read_unlock(); | |
806e2684 DG |
1312 | return -1; |
1313 | } | |
7972aab2 DG |
1314 | |
1315 | /* | |
1316 | * Send a flush command to consumer using the given channel key. | |
1317 | * | |
1318 | * Return 0 on success else a negative value. | |
1319 | */ | |
1320 | int consumer_flush_channel(struct consumer_socket *socket, uint64_t key) | |
1321 | { | |
1322 | int ret; | |
1323 | struct lttcomm_consumer_msg msg; | |
1324 | ||
1325 | assert(socket); | |
7972aab2 DG |
1326 | |
1327 | DBG2("Consumer flush channel key %" PRIu64, key); | |
1328 | ||
53efb85a | 1329 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1330 | msg.cmd_type = LTTNG_CONSUMER_FLUSH_CHANNEL; |
1331 | msg.u.flush_channel.key = key; | |
1332 | ||
1333 | pthread_mutex_lock(socket->lock); | |
1334 | health_code_update(); | |
1335 | ||
1336 | ret = consumer_send_msg(socket, &msg); | |
1337 | if (ret < 0) { | |
1338 | goto end; | |
1339 | } | |
1340 | ||
1341 | end: | |
1342 | health_code_update(); | |
1343 | pthread_mutex_unlock(socket->lock); | |
1344 | return ret; | |
1345 | } | |
1346 | ||
0dd01979 MD |
1347 | /* |
1348 | * Send a clear quiescent command to consumer using the given channel key. | |
1349 | * | |
1350 | * Return 0 on success else a negative value. | |
1351 | */ | |
1352 | int consumer_clear_quiescent_channel(struct consumer_socket *socket, uint64_t key) | |
1353 | { | |
1354 | int ret; | |
1355 | struct lttcomm_consumer_msg msg; | |
1356 | ||
1357 | assert(socket); | |
1358 | ||
1359 | DBG2("Consumer clear quiescent channel key %" PRIu64, key); | |
1360 | ||
1361 | memset(&msg, 0, sizeof(msg)); | |
1362 | msg.cmd_type = LTTNG_CONSUMER_CLEAR_QUIESCENT_CHANNEL; | |
1363 | msg.u.clear_quiescent_channel.key = key; | |
1364 | ||
1365 | pthread_mutex_lock(socket->lock); | |
1366 | health_code_update(); | |
1367 | ||
1368 | ret = consumer_send_msg(socket, &msg); | |
1369 | if (ret < 0) { | |
1370 | goto end; | |
1371 | } | |
1372 | ||
1373 | end: | |
1374 | health_code_update(); | |
1375 | pthread_mutex_unlock(socket->lock); | |
1376 | return ret; | |
1377 | } | |
1378 | ||
7972aab2 | 1379 | /* |
dc2bbdae MD |
1380 | * Send a close metadata command to consumer using the given channel key. |
1381 | * Called with registry lock held. | |
7972aab2 DG |
1382 | * |
1383 | * Return 0 on success else a negative value. | |
1384 | */ | |
1385 | int consumer_close_metadata(struct consumer_socket *socket, | |
1386 | uint64_t metadata_key) | |
1387 | { | |
1388 | int ret; | |
1389 | struct lttcomm_consumer_msg msg; | |
1390 | ||
1391 | assert(socket); | |
7972aab2 DG |
1392 | |
1393 | DBG2("Consumer close metadata channel key %" PRIu64, metadata_key); | |
1394 | ||
53efb85a | 1395 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1396 | msg.cmd_type = LTTNG_CONSUMER_CLOSE_METADATA; |
1397 | msg.u.close_metadata.key = metadata_key; | |
1398 | ||
1399 | pthread_mutex_lock(socket->lock); | |
1400 | health_code_update(); | |
1401 | ||
1402 | ret = consumer_send_msg(socket, &msg); | |
1403 | if (ret < 0) { | |
1404 | goto end; | |
1405 | } | |
1406 | ||
1407 | end: | |
1408 | health_code_update(); | |
1409 | pthread_mutex_unlock(socket->lock); | |
1410 | return ret; | |
1411 | } | |
1412 | ||
1413 | /* | |
1414 | * Send a setup metdata command to consumer using the given channel key. | |
1415 | * | |
1416 | * Return 0 on success else a negative value. | |
1417 | */ | |
1418 | int consumer_setup_metadata(struct consumer_socket *socket, | |
1419 | uint64_t metadata_key) | |
1420 | { | |
1421 | int ret; | |
1422 | struct lttcomm_consumer_msg msg; | |
1423 | ||
1424 | assert(socket); | |
7972aab2 DG |
1425 | |
1426 | DBG2("Consumer setup metadata channel key %" PRIu64, metadata_key); | |
1427 | ||
53efb85a | 1428 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1429 | msg.cmd_type = LTTNG_CONSUMER_SETUP_METADATA; |
1430 | msg.u.setup_metadata.key = metadata_key; | |
1431 | ||
1432 | pthread_mutex_lock(socket->lock); | |
1433 | health_code_update(); | |
1434 | ||
1435 | ret = consumer_send_msg(socket, &msg); | |
1436 | if (ret < 0) { | |
1437 | goto end; | |
1438 | } | |
1439 | ||
1440 | end: | |
1441 | health_code_update(); | |
1442 | pthread_mutex_unlock(socket->lock); | |
1443 | return ret; | |
1444 | } | |
1445 | ||
1446 | /* | |
dc2bbdae MD |
1447 | * Send metadata string to consumer. |
1448 | * RCU read-side lock must be held to guarantee existence of socket. | |
7972aab2 DG |
1449 | * |
1450 | * Return 0 on success else a negative value. | |
1451 | */ | |
1452 | int consumer_push_metadata(struct consumer_socket *socket, | |
1453 | uint64_t metadata_key, char *metadata_str, size_t len, | |
93ec662e | 1454 | size_t target_offset, uint64_t version) |
7972aab2 DG |
1455 | { |
1456 | int ret; | |
1457 | struct lttcomm_consumer_msg msg; | |
1458 | ||
1459 | assert(socket); | |
7972aab2 | 1460 | |
9363801e | 1461 | DBG2("Consumer push metadata to consumer socket %d", *socket->fd_ptr); |
7972aab2 | 1462 | |
dc2bbdae MD |
1463 | pthread_mutex_lock(socket->lock); |
1464 | ||
53efb85a | 1465 | memset(&msg, 0, sizeof(msg)); |
7972aab2 DG |
1466 | msg.cmd_type = LTTNG_CONSUMER_PUSH_METADATA; |
1467 | msg.u.push_metadata.key = metadata_key; | |
1468 | msg.u.push_metadata.target_offset = target_offset; | |
1469 | msg.u.push_metadata.len = len; | |
93ec662e | 1470 | msg.u.push_metadata.version = version; |
7972aab2 | 1471 | |
7972aab2 DG |
1472 | health_code_update(); |
1473 | ret = consumer_send_msg(socket, &msg); | |
331744e3 | 1474 | if (ret < 0 || len == 0) { |
7972aab2 DG |
1475 | goto end; |
1476 | } | |
1477 | ||
9363801e DG |
1478 | DBG3("Consumer pushing metadata on sock %d of len %zu", *socket->fd_ptr, |
1479 | len); | |
7972aab2 | 1480 | |
52898cb1 | 1481 | ret = consumer_socket_send(socket, metadata_str, len); |
7972aab2 DG |
1482 | if (ret < 0) { |
1483 | goto end; | |
1484 | } | |
1485 | ||
1486 | health_code_update(); | |
1487 | ret = consumer_recv_status_reply(socket); | |
1488 | if (ret < 0) { | |
1489 | goto end; | |
1490 | } | |
1491 | ||
1492 | end: | |
dc2bbdae | 1493 | pthread_mutex_unlock(socket->lock); |
7972aab2 | 1494 | health_code_update(); |
7972aab2 DG |
1495 | return ret; |
1496 | } | |
6dc3064a DG |
1497 | |
1498 | /* | |
1499 | * Ask the consumer to snapshot a specific channel using the key. | |
1500 | * | |
9a654598 | 1501 | * Returns LTTNG_OK on success or else an LTTng error code. |
6dc3064a | 1502 | */ |
9a654598 | 1503 | enum lttng_error_code consumer_snapshot_channel(struct consumer_socket *socket, |
348a81dc | 1504 | uint64_t key, const struct consumer_output *output, int metadata, |
d2956687 JG |
1505 | uid_t uid, gid_t gid, const char *channel_path, int wait, |
1506 | uint64_t nb_packets_per_stream) | |
6dc3064a DG |
1507 | { |
1508 | int ret; | |
9a654598 | 1509 | enum lttng_error_code status = LTTNG_OK; |
6dc3064a DG |
1510 | struct lttcomm_consumer_msg msg; |
1511 | ||
1512 | assert(socket); | |
6dc3064a | 1513 | assert(output); |
6dc3064a DG |
1514 | |
1515 | DBG("Consumer snapshot channel key %" PRIu64, key); | |
1516 | ||
ee91bab2 | 1517 | memset(&msg, 0, sizeof(msg)); |
6dc3064a DG |
1518 | msg.cmd_type = LTTNG_CONSUMER_SNAPSHOT_CHANNEL; |
1519 | msg.u.snapshot_channel.key = key; | |
d07ceecd | 1520 | msg.u.snapshot_channel.nb_packets_per_stream = nb_packets_per_stream; |
6dc3064a DG |
1521 | msg.u.snapshot_channel.metadata = metadata; |
1522 | ||
348a81dc | 1523 | if (output->type == CONSUMER_DST_NET) { |
d2956687 | 1524 | msg.u.snapshot_channel.relayd_id = |
348a81dc | 1525 | output->net_seq_index; |
6dc3064a | 1526 | msg.u.snapshot_channel.use_relayd = 1; |
6dc3064a | 1527 | } else { |
07b86b52 | 1528 | msg.u.snapshot_channel.relayd_id = (uint64_t) -1ULL; |
d2956687 JG |
1529 | } |
1530 | ret = lttng_strncpy(msg.u.snapshot_channel.pathname, | |
1531 | channel_path, | |
1532 | sizeof(msg.u.snapshot_channel.pathname)); | |
1533 | if (ret < 0) { | |
1534 | ERR("Snapshot path exceeds the maximal allowed length of %zu bytes (%zu bytes required) with path \"%s\"", | |
1535 | sizeof(msg.u.snapshot_channel.pathname), | |
1536 | strlen(channel_path), | |
1537 | channel_path); | |
1538 | status = LTTNG_ERR_SNAPSHOT_FAIL; | |
1539 | goto error; | |
6dc3064a DG |
1540 | } |
1541 | ||
1542 | health_code_update(); | |
9d1103e6 | 1543 | pthread_mutex_lock(socket->lock); |
6dc3064a | 1544 | ret = consumer_send_msg(socket, &msg); |
9d1103e6 | 1545 | pthread_mutex_unlock(socket->lock); |
6dc3064a | 1546 | if (ret < 0) { |
9bbfb88c MD |
1547 | switch (-ret) { |
1548 | case LTTCOMM_CONSUMERD_CHAN_NOT_FOUND: | |
9a654598 | 1549 | status = LTTNG_ERR_CHAN_NOT_FOUND; |
9bbfb88c MD |
1550 | break; |
1551 | default: | |
9a654598 | 1552 | status = LTTNG_ERR_SNAPSHOT_FAIL; |
9bbfb88c MD |
1553 | break; |
1554 | } | |
6dc3064a DG |
1555 | goto error; |
1556 | } | |
1557 | ||
1558 | error: | |
1559 | health_code_update(); | |
9a654598 | 1560 | return status; |
6dc3064a | 1561 | } |
fb83fe64 JD |
1562 | |
1563 | /* | |
1564 | * Ask the consumer the number of discarded events for a channel. | |
1565 | */ | |
1566 | int consumer_get_discarded_events(uint64_t session_id, uint64_t channel_key, | |
1567 | struct consumer_output *consumer, uint64_t *discarded) | |
1568 | { | |
1569 | int ret; | |
1570 | struct consumer_socket *socket; | |
1571 | struct lttng_ht_iter iter; | |
1572 | struct lttcomm_consumer_msg msg; | |
1573 | ||
1574 | assert(consumer); | |
1575 | ||
1576 | DBG3("Consumer discarded events id %" PRIu64, session_id); | |
1577 | ||
1578 | memset(&msg, 0, sizeof(msg)); | |
1579 | msg.cmd_type = LTTNG_CONSUMER_DISCARDED_EVENTS; | |
1580 | msg.u.discarded_events.session_id = session_id; | |
1581 | msg.u.discarded_events.channel_key = channel_key; | |
1582 | ||
1583 | *discarded = 0; | |
1584 | ||
1585 | /* Send command for each consumer */ | |
1586 | rcu_read_lock(); | |
1587 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, | |
1588 | node.node) { | |
1589 | uint64_t consumer_discarded = 0; | |
1590 | pthread_mutex_lock(socket->lock); | |
1591 | ret = consumer_socket_send(socket, &msg, sizeof(msg)); | |
1592 | if (ret < 0) { | |
1593 | pthread_mutex_unlock(socket->lock); | |
1594 | goto end; | |
1595 | } | |
1596 | ||
1597 | /* | |
1598 | * No need for a recv reply status because the answer to the | |
1599 | * command is the reply status message. | |
1600 | */ | |
1601 | ret = consumer_socket_recv(socket, &consumer_discarded, | |
1602 | sizeof(consumer_discarded)); | |
1603 | if (ret < 0) { | |
1604 | ERR("get discarded events"); | |
1605 | pthread_mutex_unlock(socket->lock); | |
1606 | goto end; | |
1607 | } | |
1608 | pthread_mutex_unlock(socket->lock); | |
1609 | *discarded += consumer_discarded; | |
1610 | } | |
1611 | ret = 0; | |
1612 | DBG("Consumer discarded %" PRIu64 " events in session id %" PRIu64, | |
1613 | *discarded, session_id); | |
1614 | ||
1615 | end: | |
1616 | rcu_read_unlock(); | |
1617 | return ret; | |
1618 | } | |
1619 | ||
1620 | /* | |
1621 | * Ask the consumer the number of lost packets for a channel. | |
1622 | */ | |
1623 | int consumer_get_lost_packets(uint64_t session_id, uint64_t channel_key, | |
1624 | struct consumer_output *consumer, uint64_t *lost) | |
1625 | { | |
1626 | int ret; | |
1627 | struct consumer_socket *socket; | |
1628 | struct lttng_ht_iter iter; | |
1629 | struct lttcomm_consumer_msg msg; | |
1630 | ||
1631 | assert(consumer); | |
1632 | ||
1633 | DBG3("Consumer lost packets id %" PRIu64, session_id); | |
1634 | ||
1635 | memset(&msg, 0, sizeof(msg)); | |
1636 | msg.cmd_type = LTTNG_CONSUMER_LOST_PACKETS; | |
1637 | msg.u.lost_packets.session_id = session_id; | |
1638 | msg.u.lost_packets.channel_key = channel_key; | |
1639 | ||
1640 | *lost = 0; | |
1641 | ||
1642 | /* Send command for each consumer */ | |
1643 | rcu_read_lock(); | |
1644 | cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket, | |
1645 | node.node) { | |
1646 | uint64_t consumer_lost = 0; | |
1647 | pthread_mutex_lock(socket->lock); | |
1648 | ret = consumer_socket_send(socket, &msg, sizeof(msg)); | |
1649 | if (ret < 0) { | |
1650 | pthread_mutex_unlock(socket->lock); | |
1651 | goto end; | |
1652 | } | |
1653 | ||
1654 | /* | |
1655 | * No need for a recv reply status because the answer to the | |
1656 | * command is the reply status message. | |
1657 | */ | |
1658 | ret = consumer_socket_recv(socket, &consumer_lost, | |
1659 | sizeof(consumer_lost)); | |
1660 | if (ret < 0) { | |
1661 | ERR("get lost packets"); | |
1662 | pthread_mutex_unlock(socket->lock); | |
1663 | goto end; | |
1664 | } | |
1665 | pthread_mutex_unlock(socket->lock); | |
1666 | *lost += consumer_lost; | |
1667 | } | |
1668 | ret = 0; | |
1669 | DBG("Consumer lost %" PRIu64 " packets in session id %" PRIu64, | |
1670 | *lost, session_id); | |
1671 | ||
1672 | end: | |
1673 | rcu_read_unlock(); | |
1674 | return ret; | |
1675 | } | |
a1ae2ea5 | 1676 | |
5c408ad8 JD |
1677 | /* |
1678 | * Ask the consumer to rotate a channel. | |
5c408ad8 JD |
1679 | * |
1680 | * The new_chunk_id is the session->rotate_count that has been incremented | |
1681 | * when the rotation started. On the relay, this allows to keep track in which | |
1682 | * chunk each stream is currently writing to (for the rotate_pending operation). | |
1683 | */ | |
1684 | int consumer_rotate_channel(struct consumer_socket *socket, uint64_t key, | |
1685 | uid_t uid, gid_t gid, struct consumer_output *output, | |
d2956687 | 1686 | bool is_metadata_channel) |
5c408ad8 JD |
1687 | { |
1688 | int ret; | |
1689 | struct lttcomm_consumer_msg msg; | |
1690 | ||
1691 | assert(socket); | |
1692 | ||
1693 | DBG("Consumer rotate channel key %" PRIu64, key); | |
1694 | ||
1695 | pthread_mutex_lock(socket->lock); | |
1696 | memset(&msg, 0, sizeof(msg)); | |
1697 | msg.cmd_type = LTTNG_CONSUMER_ROTATE_CHANNEL; | |
1698 | msg.u.rotate_channel.key = key; | |
1699 | msg.u.rotate_channel.metadata = !!is_metadata_channel; | |
5c408ad8 JD |
1700 | |
1701 | if (output->type == CONSUMER_DST_NET) { | |
1702 | msg.u.rotate_channel.relayd_id = output->net_seq_index; | |
5c408ad8 JD |
1703 | } else { |
1704 | msg.u.rotate_channel.relayd_id = (uint64_t) -1ULL; | |
5c408ad8 JD |
1705 | } |
1706 | ||
1707 | health_code_update(); | |
1708 | ret = consumer_send_msg(socket, &msg); | |
1709 | if (ret < 0) { | |
20f37cb4 MD |
1710 | switch (-ret) { |
1711 | case LTTCOMM_CONSUMERD_CHAN_NOT_FOUND: | |
1712 | ret = -LTTNG_ERR_CHAN_NOT_FOUND; | |
1713 | break; | |
1714 | default: | |
1715 | ret = -LTTNG_ERR_ROTATION_FAIL_CONSUMER; | |
1716 | break; | |
1717 | } | |
5c408ad8 JD |
1718 | goto error; |
1719 | } | |
5c408ad8 JD |
1720 | error: |
1721 | pthread_mutex_unlock(socket->lock); | |
1722 | health_code_update(); | |
1723 | return ret; | |
1724 | } | |
1725 | ||
d2956687 JG |
1726 | int consumer_init(struct consumer_socket *socket, |
1727 | const lttng_uuid sessiond_uuid) | |
00fb02ac JD |
1728 | { |
1729 | int ret; | |
d2956687 JG |
1730 | struct lttcomm_consumer_msg msg = { |
1731 | .cmd_type = LTTNG_CONSUMER_INIT, | |
1732 | }; | |
00fb02ac JD |
1733 | |
1734 | assert(socket); | |
00fb02ac | 1735 | |
d2956687 JG |
1736 | DBG("Sending consumer initialization command"); |
1737 | lttng_uuid_copy(msg.u.init.sessiond_uuid, sessiond_uuid); | |
00fb02ac JD |
1738 | |
1739 | health_code_update(); | |
1740 | ret = consumer_send_msg(socket, &msg); | |
1741 | if (ret < 0) { | |
1742 | goto error; | |
1743 | } | |
1744 | ||
d88744a4 JD |
1745 | error: |
1746 | health_code_update(); | |
1747 | return ret; | |
1748 | } | |
1749 | ||
1750 | /* | |
d2956687 | 1751 | * Ask the consumer to create a new chunk for a given session. |
92816cc3 | 1752 | * |
d2956687 | 1753 | * Called with the consumer socket lock held. |
92816cc3 | 1754 | */ |
d2956687 JG |
1755 | int consumer_create_trace_chunk(struct consumer_socket *socket, |
1756 | uint64_t relayd_id, uint64_t session_id, | |
1757 | struct lttng_trace_chunk *chunk) | |
92816cc3 JG |
1758 | { |
1759 | int ret; | |
d2956687 JG |
1760 | enum lttng_trace_chunk_status chunk_status; |
1761 | struct lttng_credentials chunk_credentials; | |
1762 | const struct lttng_directory_handle *chunk_directory_handle; | |
1763 | int chunk_dirfd; | |
1764 | const char *chunk_name; | |
913a542b | 1765 | bool chunk_name_overridden; |
d2956687 JG |
1766 | uint64_t chunk_id; |
1767 | time_t creation_timestamp; | |
1768 | char creation_timestamp_buffer[ISO8601_STR_LEN]; | |
1769 | const char *creation_timestamp_str = "(none)"; | |
1770 | const bool chunk_has_local_output = relayd_id == -1ULL; | |
1771 | struct lttcomm_consumer_msg msg = { | |
1772 | .cmd_type = LTTNG_CONSUMER_CREATE_TRACE_CHUNK, | |
1773 | .u.create_trace_chunk.session_id = session_id, | |
1774 | }; | |
92816cc3 JG |
1775 | |
1776 | assert(socket); | |
d2956687 | 1777 | assert(chunk); |
92816cc3 | 1778 | |
d2956687 JG |
1779 | if (relayd_id != -1ULL) { |
1780 | LTTNG_OPTIONAL_SET(&msg.u.create_trace_chunk.relayd_id, | |
1781 | relayd_id); | |
1782 | } | |
92816cc3 | 1783 | |
d2956687 | 1784 | chunk_status = lttng_trace_chunk_get_name(chunk, &chunk_name, |
913a542b | 1785 | &chunk_name_overridden); |
d2956687 JG |
1786 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK && |
1787 | chunk_status != LTTNG_TRACE_CHUNK_STATUS_NONE) { | |
1788 | ERR("Failed to get name of trace chunk"); | |
1789 | ret = -LTTNG_ERR_FATAL; | |
92816cc3 JG |
1790 | goto error; |
1791 | } | |
913a542b | 1792 | if (chunk_name_overridden) { |
d2956687 JG |
1793 | ret = lttng_strncpy(msg.u.create_trace_chunk.override_name, |
1794 | chunk_name, | |
1795 | sizeof(msg.u.create_trace_chunk.override_name)); | |
1796 | if (ret) { | |
1797 | ERR("Trace chunk name \"%s\" exceeds the maximal length allowed by the consumer protocol", | |
1798 | chunk_name); | |
1799 | ret = -LTTNG_ERR_FATAL; | |
1800 | goto error; | |
1801 | } | |
1802 | } | |
92816cc3 | 1803 | |
d2956687 JG |
1804 | chunk_status = lttng_trace_chunk_get_creation_timestamp(chunk, |
1805 | &creation_timestamp); | |
1806 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1807 | ret = -LTTNG_ERR_FATAL; | |
92816cc3 JG |
1808 | goto error; |
1809 | } | |
d2956687 JG |
1810 | msg.u.create_trace_chunk.creation_timestamp = |
1811 | (uint64_t) creation_timestamp; | |
1812 | /* Only used for logging purposes. */ | |
1813 | ret = time_to_iso8601_str(creation_timestamp, | |
1814 | creation_timestamp_buffer, | |
1815 | sizeof(creation_timestamp_buffer)); | |
1816 | creation_timestamp_str = !ret ? creation_timestamp_buffer : | |
1817 | "(formatting error)"; | |
1818 | ||
1819 | chunk_status = lttng_trace_chunk_get_id(chunk, &chunk_id); | |
1820 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1821 | /* | |
1822 | * Anonymous trace chunks should never be transmitted | |
1823 | * to remote peers (consumerd and relayd). They are used | |
1824 | * internally for backward-compatibility purposes. | |
1825 | */ | |
1826 | ret = -LTTNG_ERR_FATAL; | |
1827 | goto error; | |
1828 | } | |
1829 | msg.u.create_trace_chunk.chunk_id = chunk_id; | |
92816cc3 | 1830 | |
d2956687 JG |
1831 | if (chunk_has_local_output) { |
1832 | chunk_status = lttng_trace_chunk_get_chunk_directory_handle( | |
1833 | chunk, &chunk_directory_handle); | |
1834 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1835 | ret = -LTTNG_ERR_FATAL; | |
1836 | goto error; | |
1837 | } | |
d88744a4 | 1838 | |
d2956687 JG |
1839 | /* |
1840 | * This will only compile on platforms that support | |
1841 | * dirfd (POSIX.2008). This is fine as the session daemon | |
1842 | * is only built for such platforms. | |
1843 | * | |
1844 | * The ownership of the chunk directory handle's is maintained | |
1845 | * by the trace chunk. | |
1846 | */ | |
1847 | chunk_dirfd = lttng_directory_handle_get_dirfd( | |
1848 | chunk_directory_handle); | |
1849 | assert(chunk_dirfd >= 0); | |
d88744a4 | 1850 | |
e5add6d0 JG |
1851 | chunk_status = lttng_trace_chunk_get_credentials( |
1852 | chunk, &chunk_credentials); | |
1853 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1854 | /* | |
1855 | * Not associating credentials to a sessiond chunk is a | |
1856 | * fatal internal error. | |
1857 | */ | |
1858 | ret = -LTTNG_ERR_FATAL; | |
1859 | goto error; | |
1860 | } | |
1861 | msg.u.create_trace_chunk.credentials.value.uid = | |
1862 | chunk_credentials.uid; | |
1863 | msg.u.create_trace_chunk.credentials.value.gid = | |
1864 | chunk_credentials.gid; | |
1865 | msg.u.create_trace_chunk.credentials.is_set = 1; | |
d2956687 | 1866 | } |
d88744a4 | 1867 | |
d2956687 JG |
1868 | DBG("Sending consumer create trace chunk command: relayd_id = %" PRId64 |
1869 | ", session_id = %" PRIu64 ", chunk_id = %" PRIu64 | |
1870 | ", creation_timestamp = %s", | |
1871 | relayd_id, session_id, chunk_id, | |
1872 | creation_timestamp_str); | |
d88744a4 JD |
1873 | health_code_update(); |
1874 | ret = consumer_send_msg(socket, &msg); | |
d2956687 | 1875 | health_code_update(); |
d88744a4 | 1876 | if (ret < 0) { |
d2956687 JG |
1877 | ERR("Trace chunk creation error on consumer"); |
1878 | ret = -LTTNG_ERR_CREATE_TRACE_CHUNK_FAIL_CONSUMER; | |
d88744a4 JD |
1879 | goto error; |
1880 | } | |
1881 | ||
d2956687 JG |
1882 | if (chunk_has_local_output) { |
1883 | DBG("Sending trace chunk directory fd to consumer"); | |
1884 | health_code_update(); | |
1885 | ret = consumer_send_fds(socket, &chunk_dirfd, 1); | |
1886 | health_code_update(); | |
1887 | if (ret < 0) { | |
1888 | ERR("Trace chunk creation error on consumer"); | |
1889 | ret = -LTTNG_ERR_CREATE_TRACE_CHUNK_FAIL_CONSUMER; | |
1890 | goto error; | |
1891 | } | |
d88744a4 | 1892 | } |
00fb02ac | 1893 | error: |
00fb02ac JD |
1894 | return ret; |
1895 | } | |
1896 | ||
a1ae2ea5 | 1897 | /* |
d2956687 | 1898 | * Ask the consumer to close a trace chunk for a given session. |
a1ae2ea5 JD |
1899 | * |
1900 | * Called with the consumer socket lock held. | |
1901 | */ | |
d2956687 JG |
1902 | int consumer_close_trace_chunk(struct consumer_socket *socket, |
1903 | uint64_t relayd_id, uint64_t session_id, | |
ecd1a12f MD |
1904 | struct lttng_trace_chunk *chunk, |
1905 | char *closed_trace_chunk_path) | |
a1ae2ea5 JD |
1906 | { |
1907 | int ret; | |
d2956687 JG |
1908 | enum lttng_trace_chunk_status chunk_status; |
1909 | struct lttcomm_consumer_msg msg = { | |
bbc4768c JG |
1910 | .cmd_type = LTTNG_CONSUMER_CLOSE_TRACE_CHUNK, |
1911 | .u.close_trace_chunk.session_id = session_id, | |
d2956687 | 1912 | }; |
ecd1a12f | 1913 | struct lttcomm_consumer_close_trace_chunk_reply reply; |
d2956687 JG |
1914 | uint64_t chunk_id; |
1915 | time_t close_timestamp; | |
bbc4768c JG |
1916 | enum lttng_trace_chunk_command_type close_command; |
1917 | const char *close_command_name = "none"; | |
ecd1a12f | 1918 | struct lttng_dynamic_buffer path_reception_buffer; |
a1ae2ea5 JD |
1919 | |
1920 | assert(socket); | |
ecd1a12f | 1921 | lttng_dynamic_buffer_init(&path_reception_buffer); |
a1ae2ea5 | 1922 | |
d2956687 | 1923 | if (relayd_id != -1ULL) { |
bbc4768c JG |
1924 | LTTNG_OPTIONAL_SET( |
1925 | &msg.u.close_trace_chunk.relayd_id, relayd_id); | |
1926 | } | |
1927 | ||
1928 | chunk_status = lttng_trace_chunk_get_close_command( | |
1929 | chunk, &close_command); | |
1930 | switch (chunk_status) { | |
1931 | case LTTNG_TRACE_CHUNK_STATUS_OK: | |
1932 | LTTNG_OPTIONAL_SET(&msg.u.close_trace_chunk.close_command, | |
1933 | (uint32_t) close_command); | |
1934 | break; | |
1935 | case LTTNG_TRACE_CHUNK_STATUS_NONE: | |
1936 | break; | |
1937 | default: | |
1938 | ERR("Failed to get trace chunk close command"); | |
1939 | ret = -1; | |
1940 | goto error; | |
a1ae2ea5 JD |
1941 | } |
1942 | ||
d2956687 JG |
1943 | chunk_status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1944 | /* | |
1945 | * Anonymous trace chunks should never be transmitted to remote peers | |
1946 | * (consumerd and relayd). They are used internally for | |
1947 | * backward-compatibility purposes. | |
1948 | */ | |
1949 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
1950 | msg.u.close_trace_chunk.chunk_id = chunk_id; | |
1951 | ||
1952 | chunk_status = lttng_trace_chunk_get_close_timestamp(chunk, | |
1953 | &close_timestamp); | |
1954 | /* | |
1955 | * A trace chunk should be closed locally before being closed remotely. | |
1956 | * Otherwise, the close timestamp would never be transmitted to the | |
1957 | * peers. | |
1958 | */ | |
1959 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
1960 | msg.u.close_trace_chunk.close_timestamp = (uint64_t) close_timestamp; | |
1961 | ||
bbc4768c JG |
1962 | if (msg.u.close_trace_chunk.close_command.is_set) { |
1963 | close_command_name = lttng_trace_chunk_command_type_get_name( | |
1964 | close_command); | |
1965 | } | |
d2956687 | 1966 | DBG("Sending consumer close trace chunk command: relayd_id = %" PRId64 |
bbc4768c JG |
1967 | ", session_id = %" PRIu64 ", chunk_id = %" PRIu64 |
1968 | ", close command = \"%s\"", | |
1969 | relayd_id, session_id, chunk_id, close_command_name); | |
a1ae2ea5 JD |
1970 | |
1971 | health_code_update(); | |
ecd1a12f | 1972 | ret = consumer_socket_send(socket, &msg, sizeof(struct lttcomm_consumer_msg)); |
a1ae2ea5 | 1973 | if (ret < 0) { |
d2956687 | 1974 | ret = -LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER; |
a1ae2ea5 JD |
1975 | goto error; |
1976 | } | |
ecd1a12f MD |
1977 | ret = consumer_socket_recv(socket, &reply, sizeof(reply)); |
1978 | if (ret < 0) { | |
1979 | ret = -LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER; | |
1980 | goto error; | |
1981 | } | |
1982 | if (reply.path_length >= LTTNG_PATH_MAX) { | |
1983 | ERR("Invalid path returned by relay daemon: %" PRIu32 "bytes exceeds maximal allowed length of %d bytes", | |
1984 | reply.path_length, LTTNG_PATH_MAX); | |
1985 | ret = -LTTNG_ERR_INVALID_PROTOCOL; | |
1986 | goto error; | |
1987 | } | |
1988 | ret = lttng_dynamic_buffer_set_size(&path_reception_buffer, | |
1989 | reply.path_length); | |
1990 | if (ret) { | |
1991 | ERR("Failed to allocate reception buffer of path returned by the \"close trace chunk\" command"); | |
1992 | ret = -LTTNG_ERR_NOMEM; | |
1993 | goto error; | |
1994 | } | |
1995 | ret = consumer_socket_recv(socket, path_reception_buffer.data, | |
1996 | path_reception_buffer.size); | |
1997 | if (ret < 0) { | |
1998 | ERR("Communication error while receiving path of closed trace chunk"); | |
1999 | ret = -LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER; | |
2000 | goto error; | |
2001 | } | |
2002 | if (path_reception_buffer.data[path_reception_buffer.size - 1] != '\0') { | |
2003 | ERR("Invalid path returned by relay daemon: not null-terminated"); | |
2004 | ret = -LTTNG_ERR_INVALID_PROTOCOL; | |
2005 | goto error; | |
2006 | } | |
2007 | if (closed_trace_chunk_path) { | |
2008 | /* | |
2009 | * closed_trace_chunk_path is assumed to have a length >= | |
2010 | * LTTNG_PATH_MAX | |
2011 | */ | |
2012 | memcpy(closed_trace_chunk_path, path_reception_buffer.data, | |
2013 | path_reception_buffer.size); | |
2014 | } | |
a1ae2ea5 | 2015 | error: |
ecd1a12f | 2016 | lttng_dynamic_buffer_reset(&path_reception_buffer); |
a1ae2ea5 JD |
2017 | health_code_update(); |
2018 | return ret; | |
2019 | } | |
3654ed19 | 2020 | |
d2956687 JG |
2021 | /* |
2022 | * Ask the consumer if a trace chunk exists. | |
2023 | * | |
2024 | * Called with the consumer socket lock held. | |
2025 | * Returns 0 on success, or a negative value on error. | |
2026 | */ | |
2027 | int consumer_trace_chunk_exists(struct consumer_socket *socket, | |
2028 | uint64_t relayd_id, uint64_t session_id, | |
2029 | struct lttng_trace_chunk *chunk, | |
2030 | enum consumer_trace_chunk_exists_status *result) | |
3654ed19 JG |
2031 | { |
2032 | int ret; | |
d2956687 | 2033 | enum lttng_trace_chunk_status chunk_status; |
3654ed19 | 2034 | struct lttcomm_consumer_msg msg = { |
d2956687 JG |
2035 | .cmd_type = LTTNG_CONSUMER_TRACE_CHUNK_EXISTS, |
2036 | .u.trace_chunk_exists.session_id = session_id, | |
3654ed19 | 2037 | }; |
d2956687 JG |
2038 | uint64_t chunk_id; |
2039 | const char *consumer_reply_str; | |
3654ed19 JG |
2040 | |
2041 | assert(socket); | |
2042 | ||
d2956687 JG |
2043 | if (relayd_id != -1ULL) { |
2044 | LTTNG_OPTIONAL_SET(&msg.u.trace_chunk_exists.relayd_id, | |
2045 | relayd_id); | |
2046 | } | |
2047 | ||
2048 | chunk_status = lttng_trace_chunk_get_id(chunk, &chunk_id); | |
2049 | if (chunk_status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
2050 | /* | |
2051 | * Anonymous trace chunks should never be transmitted | |
2052 | * to remote peers (consumerd and relayd). They are used | |
2053 | * internally for backward-compatibility purposes. | |
2054 | */ | |
2055 | ret = -LTTNG_ERR_FATAL; | |
2056 | goto error; | |
2057 | } | |
2058 | msg.u.trace_chunk_exists.chunk_id = chunk_id; | |
2059 | ||
2060 | DBG("Sending consumer trace chunk exists command: relayd_id = %" PRId64 | |
2061 | ", session_id = %" PRIu64 | |
2062 | ", chunk_id = %" PRIu64, relayd_id, session_id, chunk_id); | |
3654ed19 JG |
2063 | |
2064 | health_code_update(); | |
2065 | ret = consumer_send_msg(socket, &msg); | |
d2956687 JG |
2066 | switch (-ret) { |
2067 | case LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK: | |
2068 | consumer_reply_str = "unknown trace chunk"; | |
2069 | *result = CONSUMER_TRACE_CHUNK_EXISTS_STATUS_UNKNOWN_CHUNK; | |
2070 | break; | |
2071 | case LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL: | |
2072 | consumer_reply_str = "trace chunk exists locally"; | |
2073 | *result = CONSUMER_TRACE_CHUNK_EXISTS_STATUS_EXISTS_LOCAL; | |
2074 | break; | |
2075 | case LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE: | |
2076 | consumer_reply_str = "trace chunk exists on remote peer"; | |
2077 | *result = CONSUMER_TRACE_CHUNK_EXISTS_STATUS_EXISTS_REMOTE; | |
2078 | break; | |
2079 | default: | |
2080 | ERR("Consumer returned an error from TRACE_CHUNK_EXISTS command"); | |
2081 | ret = -1; | |
3654ed19 JG |
2082 | goto error; |
2083 | } | |
d2956687 JG |
2084 | DBG("Consumer reply to TRACE_CHUNK_EXISTS command: %s", |
2085 | consumer_reply_str); | |
2086 | ret = 0; | |
3654ed19 JG |
2087 | error: |
2088 | health_code_update(); | |
2089 | return ret; | |
2090 | } |