Commit | Line | Data |
---|---|---|
00e2e675 DG |
1 | /* |
2 | * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License, version 2 only, as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
00e2e675 DG |
19 | #include <assert.h> |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <sys/stat.h> | |
77c7c900 | 24 | #include <inttypes.h> |
00e2e675 DG |
25 | |
26 | #include <common/common.h> | |
27 | #include <common/defaults.h> | |
f263b7fd | 28 | #include <common/compat/endian.h> |
27283937 | 29 | #include <common/compat/string.h> |
00e2e675 | 30 | #include <common/sessiond-comm/relayd.h> |
50adc264 | 31 | #include <common/index/ctf-index.h> |
00e2e675 DG |
32 | |
33 | #include "relayd.h" | |
34 | ||
35 | /* | |
36 | * Send command. Fill up the header and append the data. | |
37 | */ | |
6151a90f | 38 | static int send_command(struct lttcomm_relayd_sock *rsock, |
76b9afaa | 39 | enum lttcomm_relayd_command cmd, const void *data, size_t size, |
00e2e675 DG |
40 | int flags) |
41 | { | |
42 | int ret; | |
43 | struct lttcomm_relayd_hdr header; | |
44 | char *buf; | |
45 | uint64_t buf_size = sizeof(header); | |
46 | ||
f96e4545 MD |
47 | if (rsock->sock.fd < 0) { |
48 | return -ECONNRESET; | |
49 | } | |
50 | ||
00e2e675 DG |
51 | if (data) { |
52 | buf_size += size; | |
53 | } | |
54 | ||
55 | buf = zmalloc(buf_size); | |
56 | if (buf == NULL) { | |
57 | PERROR("zmalloc relayd send command buf"); | |
58 | ret = -1; | |
59 | goto alloc_error; | |
60 | } | |
61 | ||
53efb85a | 62 | memset(&header, 0, sizeof(header)); |
00e2e675 DG |
63 | header.cmd = htobe32(cmd); |
64 | header.data_size = htobe64(size); | |
65 | ||
66 | /* Zeroed for now since not used. */ | |
67 | header.cmd_version = 0; | |
68 | header.circuit_id = 0; | |
69 | ||
70 | /* Prepare buffer to send. */ | |
71 | memcpy(buf, &header, sizeof(header)); | |
72 | if (data) { | |
73 | memcpy(buf + sizeof(header), data, size); | |
74 | } | |
75 | ||
06586bbe | 76 | DBG3("Relayd sending command %d of size %" PRIu64, (int) cmd, buf_size); |
6151a90f | 77 | ret = rsock->sock.ops->sendmsg(&rsock->sock, buf, buf_size, flags); |
00e2e675 | 78 | if (ret < 0) { |
06586bbe JG |
79 | PERROR("Failed to send command %d of size %" PRIu64, |
80 | (int) cmd, buf_size); | |
8994307f | 81 | ret = -errno; |
00e2e675 DG |
82 | goto error; |
83 | } | |
00e2e675 DG |
84 | error: |
85 | free(buf); | |
86 | alloc_error: | |
87 | return ret; | |
88 | } | |
89 | ||
90 | /* | |
91 | * Receive reply data on socket. This MUST be call after send_command or else | |
92 | * could result in unexpected behavior(s). | |
93 | */ | |
6151a90f | 94 | static int recv_reply(struct lttcomm_relayd_sock *rsock, void *data, size_t size) |
00e2e675 DG |
95 | { |
96 | int ret; | |
97 | ||
f96e4545 MD |
98 | if (rsock->sock.fd < 0) { |
99 | return -ECONNRESET; | |
100 | } | |
101 | ||
8fd623e0 | 102 | DBG3("Relayd waiting for reply of size %zu", size); |
00e2e675 | 103 | |
6151a90f | 104 | ret = rsock->sock.ops->recvmsg(&rsock->sock, data, size, 0); |
20275fe8 DG |
105 | if (ret <= 0 || ret != size) { |
106 | if (ret == 0) { | |
107 | /* Orderly shutdown. */ | |
6151a90f | 108 | DBG("Socket %d has performed an orderly shutdown", rsock->sock.fd); |
20275fe8 | 109 | } else { |
8fd623e0 | 110 | DBG("Receiving reply failed on sock %d for size %zu with ret %d", |
6151a90f | 111 | rsock->sock.fd, size, ret); |
20275fe8 DG |
112 | } |
113 | /* Always return -1 here and the caller can use errno. */ | |
114 | ret = -1; | |
00e2e675 DG |
115 | goto error; |
116 | } | |
117 | ||
118 | error: | |
119 | return ret; | |
120 | } | |
121 | ||
d3e2ba59 | 122 | /* |
f86f6389 JR |
123 | * Starting from 2.11, RELAYD_CREATE_SESSION payload (session_name & hostname) |
124 | * have no length restriction on the sender side. | |
125 | * Length for both payloads is stored in the msg struct. A new dynamic size | |
126 | * payload size is introduced. | |
127 | */ | |
128 | static int relayd_create_session_2_11(struct lttcomm_relayd_sock *rsock, | |
129 | char *session_name, char *hostname, | |
130 | int session_live_timer, unsigned int snapshot) | |
131 | { | |
132 | int ret; | |
133 | struct lttcomm_relayd_create_session_2_11 *msg = NULL; | |
134 | size_t session_name_len; | |
135 | size_t hostname_len; | |
136 | size_t msg_length; | |
137 | ||
138 | /* The two names are sent with a '\0' delimiter between them. */ | |
139 | session_name_len = strlen(session_name) + 1; | |
140 | hostname_len = strlen(hostname) + 1; | |
141 | ||
142 | msg_length = sizeof(*msg) + session_name_len + hostname_len; | |
143 | msg = zmalloc(msg_length); | |
144 | if (!msg) { | |
145 | PERROR("zmalloc create_session_2_11 command message"); | |
146 | ret = -1; | |
147 | goto error; | |
148 | } | |
149 | ||
150 | assert(session_name_len <= UINT32_MAX); | |
151 | msg->session_name_len = htobe32(session_name_len); | |
152 | ||
153 | assert(hostname_len <= UINT32_MAX); | |
154 | msg->hostname_len = htobe32(hostname_len); | |
155 | ||
156 | if (lttng_strncpy(msg->names, session_name, session_name_len)) { | |
157 | ret = -1; | |
158 | goto error; | |
159 | } | |
160 | if (lttng_strncpy(msg->names + session_name_len, hostname, hostname_len)) { | |
161 | ret = -1; | |
162 | goto error; | |
163 | } | |
164 | ||
165 | msg->live_timer = htobe32(session_live_timer); | |
166 | msg->snapshot = !!snapshot; | |
167 | ||
168 | /* Send command */ | |
169 | ret = send_command(rsock, RELAYD_CREATE_SESSION, msg, msg_length, 0); | |
170 | if (ret < 0) { | |
171 | goto error; | |
172 | } | |
173 | error: | |
174 | free(msg); | |
175 | return ret; | |
176 | } | |
177 | /* | |
178 | * From 2.4 to 2.10, RELAYD_CREATE_SESSION takes additional parameters to | |
d3e2ba59 JD |
179 | * support the live reading capability. |
180 | */ | |
181 | static int relayd_create_session_2_4(struct lttcomm_relayd_sock *rsock, | |
42e9a27b JR |
182 | char *session_name, char *hostname, int session_live_timer, |
183 | unsigned int snapshot) | |
d3e2ba59 JD |
184 | { |
185 | int ret; | |
186 | struct lttcomm_relayd_create_session_2_4 msg; | |
187 | ||
3a13ffd5 MD |
188 | if (lttng_strncpy(msg.session_name, session_name, |
189 | sizeof(msg.session_name))) { | |
246777db MD |
190 | ret = -1; |
191 | goto error; | |
192 | } | |
3a13ffd5 | 193 | if (lttng_strncpy(msg.hostname, hostname, sizeof(msg.hostname))) { |
246777db MD |
194 | ret = -1; |
195 | goto error; | |
196 | } | |
d3e2ba59 | 197 | msg.live_timer = htobe32(session_live_timer); |
7d2f7452 | 198 | msg.snapshot = htobe32(snapshot); |
d3e2ba59 JD |
199 | |
200 | /* Send command */ | |
201 | ret = send_command(rsock, RELAYD_CREATE_SESSION, &msg, sizeof(msg), 0); | |
202 | if (ret < 0) { | |
203 | goto error; | |
204 | } | |
205 | ||
206 | error: | |
207 | return ret; | |
208 | } | |
209 | ||
210 | /* | |
211 | * RELAYD_CREATE_SESSION from 2.1 to 2.3. | |
212 | */ | |
42e9a27b | 213 | static int relayd_create_session_2_1(struct lttcomm_relayd_sock *rsock) |
d3e2ba59 JD |
214 | { |
215 | int ret; | |
216 | ||
217 | /* Send command */ | |
218 | ret = send_command(rsock, RELAYD_CREATE_SESSION, NULL, 0, 0); | |
219 | if (ret < 0) { | |
220 | goto error; | |
221 | } | |
222 | ||
223 | error: | |
224 | return ret; | |
225 | } | |
226 | ||
c5b6f4f0 DG |
227 | /* |
228 | * Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and | |
229 | * set session_id of the relayd if we have a successful reply from the relayd. | |
230 | * | |
20275fe8 DG |
231 | * On success, return 0 else a negative value which is either an errno error or |
232 | * a lttng error code from the relayd. | |
c5b6f4f0 | 233 | */ |
d3e2ba59 | 234 | int relayd_create_session(struct lttcomm_relayd_sock *rsock, uint64_t *session_id, |
7d2f7452 DG |
235 | char *session_name, char *hostname, int session_live_timer, |
236 | unsigned int snapshot) | |
c5b6f4f0 DG |
237 | { |
238 | int ret; | |
239 | struct lttcomm_relayd_status_session reply; | |
240 | ||
6151a90f | 241 | assert(rsock); |
c5b6f4f0 DG |
242 | assert(session_id); |
243 | ||
244 | DBG("Relayd create session"); | |
245 | ||
f86f6389 JR |
246 | if (rsock->minor < 4) { |
247 | /* From 2.1 to 2.3 */ | |
248 | ret = relayd_create_session_2_1(rsock); | |
249 | } else if (rsock->minor >= 4 && rsock->minor < 11) { | |
250 | /* From 2.4 to 2.10 */ | |
251 | ret = relayd_create_session_2_4(rsock, session_name, | |
252 | hostname, session_live_timer, snapshot); | |
253 | } else { | |
254 | /* From 2.11 to ... */ | |
255 | ret = relayd_create_session_2_11(rsock, session_name, | |
256 | hostname, session_live_timer, snapshot); | |
d3e2ba59 JD |
257 | } |
258 | ||
c5b6f4f0 DG |
259 | if (ret < 0) { |
260 | goto error; | |
261 | } | |
262 | ||
20275fe8 | 263 | /* Receive response */ |
6151a90f | 264 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c5b6f4f0 DG |
265 | if (ret < 0) { |
266 | goto error; | |
267 | } | |
268 | ||
269 | reply.session_id = be64toh(reply.session_id); | |
270 | reply.ret_code = be32toh(reply.ret_code); | |
271 | ||
272 | /* Return session id or negative ret code. */ | |
273 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
274 | ret = -1; |
275 | ERR("Relayd create session replied error %d", reply.ret_code); | |
c5b6f4f0 DG |
276 | goto error; |
277 | } else { | |
278 | ret = 0; | |
279 | *session_id = reply.session_id; | |
280 | } | |
281 | ||
282 | DBG("Relayd session created with id %" PRIu64, reply.session_id); | |
283 | ||
284 | error: | |
285 | return ret; | |
286 | } | |
287 | ||
2f21a469 JR |
288 | static int relayd_add_stream_2_1(struct lttcomm_relayd_sock *rsock, |
289 | const char *channel_name, const char *pathname) | |
290 | { | |
291 | int ret; | |
292 | struct lttcomm_relayd_add_stream msg; | |
293 | ||
294 | memset(&msg, 0, sizeof(msg)); | |
295 | if (lttng_strncpy(msg.channel_name, channel_name, | |
296 | sizeof(msg.channel_name))) { | |
297 | ret = -1; | |
298 | goto error; | |
299 | } | |
300 | ||
301 | if (lttng_strncpy(msg.pathname, pathname, | |
302 | sizeof(msg.pathname))) { | |
303 | ret = -1; | |
304 | goto error; | |
305 | } | |
306 | ||
307 | /* Send command */ | |
308 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
309 | if (ret < 0) { | |
310 | ret = -1; | |
311 | goto error; | |
312 | } | |
313 | ret = 0; | |
314 | error: | |
315 | return ret; | |
316 | } | |
317 | ||
318 | static int relayd_add_stream_2_2(struct lttcomm_relayd_sock *rsock, | |
319 | const char *channel_name, const char *pathname, | |
320 | uint64_t tracefile_size, uint64_t tracefile_count) | |
321 | { | |
322 | int ret; | |
323 | struct lttcomm_relayd_add_stream_2_2 msg; | |
324 | ||
325 | memset(&msg, 0, sizeof(msg)); | |
326 | /* Compat with relayd 2.2 to 2.10 */ | |
327 | if (lttng_strncpy(msg.channel_name, channel_name, | |
328 | sizeof(msg.channel_name))) { | |
329 | ret = -1; | |
330 | goto error; | |
331 | } | |
332 | if (lttng_strncpy(msg.pathname, pathname, | |
333 | sizeof(msg.pathname))) { | |
334 | ret = -1; | |
335 | goto error; | |
336 | } | |
337 | msg.tracefile_size = htobe64(tracefile_size); | |
338 | msg.tracefile_count = htobe64(tracefile_count); | |
339 | ||
340 | /* Send command */ | |
341 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
342 | if (ret < 0) { | |
343 | goto error; | |
344 | } | |
345 | ret = 0; | |
346 | error: | |
347 | return ret; | |
348 | } | |
349 | ||
350 | static int relayd_add_stream_2_11(struct lttcomm_relayd_sock *rsock, | |
351 | const char *channel_name, const char *pathname, | |
352 | uint64_t tracefile_size, uint64_t tracefile_count) | |
353 | { | |
354 | int ret; | |
355 | struct lttcomm_relayd_add_stream_2_11 *msg = NULL; | |
356 | size_t channel_name_len; | |
357 | size_t pathname_len; | |
358 | size_t msg_length; | |
359 | ||
360 | /* The two names are sent with a '\0' delimiter between them. */ | |
361 | channel_name_len = strlen(channel_name) + 1; | |
362 | pathname_len = strlen(pathname) + 1; | |
363 | ||
364 | msg_length = sizeof(*msg) + channel_name_len + pathname_len; | |
365 | msg = zmalloc(msg_length); | |
366 | if (!msg) { | |
367 | PERROR("zmalloc add_stream_2_11 command message"); | |
368 | ret = -1; | |
369 | goto error; | |
370 | } | |
371 | ||
372 | assert(channel_name_len <= UINT32_MAX); | |
373 | msg->channel_name_len = htobe32(channel_name_len); | |
374 | ||
375 | assert(pathname_len <= UINT32_MAX); | |
376 | msg->pathname_len = htobe32(pathname_len); | |
377 | ||
378 | if (lttng_strncpy(msg->names, channel_name, channel_name_len)) { | |
379 | ret = -1; | |
380 | goto error; | |
381 | } | |
382 | if (lttng_strncpy(msg->names + channel_name_len, pathname, pathname_len)) { | |
383 | ret = -1; | |
384 | goto error; | |
385 | } | |
386 | ||
387 | msg->tracefile_size = htobe64(tracefile_size); | |
388 | msg->tracefile_count = htobe64(tracefile_count); | |
389 | ||
390 | /* Send command */ | |
391 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) msg, msg_length, 0); | |
392 | if (ret < 0) { | |
393 | goto error; | |
394 | } | |
395 | ret = 0; | |
396 | error: | |
397 | free(msg); | |
398 | return ret; | |
399 | } | |
400 | ||
00e2e675 DG |
401 | /* |
402 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
403 | * | |
404 | * On success return 0 else return ret_code negative value. | |
405 | */ | |
6151a90f | 406 | int relayd_add_stream(struct lttcomm_relayd_sock *rsock, const char *channel_name, |
0f907de1 | 407 | const char *pathname, uint64_t *stream_id, |
0b50e4b3 JG |
408 | uint64_t tracefile_size, uint64_t tracefile_count, |
409 | uint64_t trace_archive_id) | |
00e2e675 DG |
410 | { |
411 | int ret; | |
00e2e675 DG |
412 | struct lttcomm_relayd_status_stream reply; |
413 | ||
414 | /* Code flow error. Safety net. */ | |
6151a90f | 415 | assert(rsock); |
00e2e675 DG |
416 | assert(channel_name); |
417 | assert(pathname); | |
418 | ||
419 | DBG("Relayd adding stream for channel name %s", channel_name); | |
420 | ||
0f907de1 JD |
421 | /* Compat with relayd 2.1 */ |
422 | if (rsock->minor == 1) { | |
2f21a469 JR |
423 | /* For 2.1 */ |
424 | ret = relayd_add_stream_2_1(rsock, channel_name, pathname); | |
425 | ||
426 | } else if (rsock->minor > 1 && rsock->minor < 11) { | |
427 | /* From 2.2 to 2.10 */ | |
428 | ret = relayd_add_stream_2_2(rsock, channel_name, pathname, | |
429 | tracefile_size, tracefile_count); | |
0f907de1 | 430 | } else { |
2f21a469 JR |
431 | /* From 2.11 to ...*/ |
432 | ret = relayd_add_stream_2_11(rsock, channel_name, pathname, | |
433 | tracefile_size, tracefile_count); | |
434 | } | |
0f907de1 | 435 | |
2f21a469 JR |
436 | if (ret) { |
437 | ret = -1; | |
438 | goto error; | |
00e2e675 DG |
439 | } |
440 | ||
633d0084 | 441 | /* Waiting for reply */ |
6151a90f | 442 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
00e2e675 DG |
443 | if (ret < 0) { |
444 | goto error; | |
445 | } | |
446 | ||
447 | /* Back to host bytes order. */ | |
448 | reply.handle = be64toh(reply.handle); | |
449 | reply.ret_code = be32toh(reply.ret_code); | |
450 | ||
451 | /* Return session id or negative ret code. */ | |
f73fabfd | 452 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
453 | ret = -1; |
454 | ERR("Relayd add stream replied error %d", reply.ret_code); | |
00e2e675 DG |
455 | } else { |
456 | /* Success */ | |
457 | ret = 0; | |
458 | *stream_id = reply.handle; | |
459 | } | |
460 | ||
77c7c900 | 461 | DBG("Relayd stream added successfully with handle %" PRIu64, |
2f21a469 | 462 | reply.handle); |
00e2e675 DG |
463 | |
464 | error: | |
465 | return ret; | |
466 | } | |
467 | ||
a4baae1b JD |
468 | /* |
469 | * Inform the relay that all the streams for the current channel has been sent. | |
470 | * | |
471 | * On success return 0 else return ret_code negative value. | |
472 | */ | |
473 | int relayd_streams_sent(struct lttcomm_relayd_sock *rsock) | |
474 | { | |
475 | int ret; | |
476 | struct lttcomm_relayd_generic_reply reply; | |
477 | ||
478 | /* Code flow error. Safety net. */ | |
479 | assert(rsock); | |
480 | ||
481 | DBG("Relayd sending streams sent."); | |
482 | ||
483 | /* This feature was introduced in 2.4, ignore it for earlier versions. */ | |
484 | if (rsock->minor < 4) { | |
485 | ret = 0; | |
486 | goto end; | |
487 | } | |
488 | ||
489 | /* Send command */ | |
490 | ret = send_command(rsock, RELAYD_STREAMS_SENT, NULL, 0, 0); | |
491 | if (ret < 0) { | |
492 | goto error; | |
493 | } | |
494 | ||
495 | /* Waiting for reply */ | |
496 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
497 | if (ret < 0) { | |
498 | goto error; | |
499 | } | |
500 | ||
501 | /* Back to host bytes order. */ | |
502 | reply.ret_code = be32toh(reply.ret_code); | |
503 | ||
504 | /* Return session id or negative ret code. */ | |
505 | if (reply.ret_code != LTTNG_OK) { | |
506 | ret = -1; | |
507 | ERR("Relayd streams sent replied error %d", reply.ret_code); | |
508 | goto error; | |
509 | } else { | |
510 | /* Success */ | |
511 | ret = 0; | |
512 | } | |
513 | ||
514 | DBG("Relayd streams sent success"); | |
515 | ||
516 | error: | |
517 | end: | |
518 | return ret; | |
519 | } | |
520 | ||
00e2e675 DG |
521 | /* |
522 | * Check version numbers on the relayd. | |
d4519fa3 JD |
523 | * If major versions are compatible, we assign minor_to_use to the |
524 | * minor version of the procotol we are going to use for this session. | |
00e2e675 | 525 | * |
67d5aa28 JD |
526 | * Return 0 if the two daemons are compatible, LTTNG_ERR_RELAYD_VERSION_FAIL |
527 | * otherwise, or a negative value on network errors. | |
00e2e675 | 528 | */ |
6151a90f | 529 | int relayd_version_check(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
530 | { |
531 | int ret; | |
092b6259 | 532 | struct lttcomm_relayd_version msg; |
00e2e675 DG |
533 | |
534 | /* Code flow error. Safety net. */ | |
6151a90f | 535 | assert(rsock); |
00e2e675 | 536 | |
6151a90f JD |
537 | DBG("Relayd version check for major.minor %u.%u", rsock->major, |
538 | rsock->minor); | |
00e2e675 | 539 | |
53efb85a | 540 | memset(&msg, 0, sizeof(msg)); |
092b6259 | 541 | /* Prepare network byte order before transmission. */ |
6151a90f JD |
542 | msg.major = htobe32(rsock->major); |
543 | msg.minor = htobe32(rsock->minor); | |
092b6259 | 544 | |
00e2e675 | 545 | /* Send command */ |
6151a90f | 546 | ret = send_command(rsock, RELAYD_VERSION, (void *) &msg, sizeof(msg), 0); |
00e2e675 DG |
547 | if (ret < 0) { |
548 | goto error; | |
549 | } | |
550 | ||
20275fe8 | 551 | /* Receive response */ |
6151a90f | 552 | ret = recv_reply(rsock, (void *) &msg, sizeof(msg)); |
00e2e675 DG |
553 | if (ret < 0) { |
554 | goto error; | |
555 | } | |
556 | ||
557 | /* Set back to host bytes order */ | |
092b6259 DG |
558 | msg.major = be32toh(msg.major); |
559 | msg.minor = be32toh(msg.minor); | |
560 | ||
561 | /* | |
562 | * Only validate the major version. If the other side is higher, | |
563 | * communication is not possible. Only major version equal can talk to each | |
564 | * other. If the minor version differs, the lowest version is used by both | |
565 | * sides. | |
092b6259 | 566 | */ |
6151a90f | 567 | if (msg.major != rsock->major) { |
d4519fa3 | 568 | /* Not compatible */ |
67d5aa28 | 569 | ret = LTTNG_ERR_RELAYD_VERSION_FAIL; |
d4519fa3 | 570 | DBG2("Relayd version is NOT compatible. Relayd version %u != %u (us)", |
6151a90f | 571 | msg.major, rsock->major); |
092b6259 | 572 | goto error; |
00e2e675 DG |
573 | } |
574 | ||
092b6259 | 575 | /* |
6151a90f JD |
576 | * If the relayd's minor version is higher, it will adapt to our version so |
577 | * we can continue to use the latest relayd communication data structure. | |
578 | * If the received minor version is higher, the relayd should adapt to us. | |
092b6259 | 579 | */ |
6151a90f JD |
580 | if (rsock->minor > msg.minor) { |
581 | rsock->minor = msg.minor; | |
d4519fa3 | 582 | } |
092b6259 | 583 | |
d4519fa3 JD |
584 | /* Version number compatible */ |
585 | DBG2("Relayd version is compatible, using protocol version %u.%u", | |
6151a90f | 586 | rsock->major, rsock->minor); |
d4519fa3 | 587 | ret = 0; |
00e2e675 DG |
588 | |
589 | error: | |
590 | return ret; | |
591 | } | |
592 | ||
00e2e675 DG |
593 | /* |
594 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
595 | * | |
596 | * On success return 0 else return ret_code negative value. | |
597 | */ | |
6151a90f | 598 | int relayd_send_metadata(struct lttcomm_relayd_sock *rsock, size_t len) |
00e2e675 DG |
599 | { |
600 | int ret; | |
601 | ||
602 | /* Code flow error. Safety net. */ | |
6151a90f | 603 | assert(rsock); |
00e2e675 | 604 | |
77c7c900 | 605 | DBG("Relayd sending metadata of size %zu", len); |
00e2e675 DG |
606 | |
607 | /* Send command */ | |
6151a90f | 608 | ret = send_command(rsock, RELAYD_SEND_METADATA, NULL, len, 0); |
00e2e675 DG |
609 | if (ret < 0) { |
610 | goto error; | |
611 | } | |
612 | ||
613 | DBG2("Relayd metadata added successfully"); | |
614 | ||
615 | /* | |
616 | * After that call, the metadata data MUST be sent to the relayd so the | |
617 | * receive size on the other end matches the len of the metadata packet | |
633d0084 | 618 | * header. This is why we don't wait for a reply here. |
00e2e675 DG |
619 | */ |
620 | ||
621 | error: | |
622 | return ret; | |
623 | } | |
624 | ||
625 | /* | |
6151a90f | 626 | * Connect to relay daemon with an allocated lttcomm_relayd_sock. |
00e2e675 | 627 | */ |
6151a90f | 628 | int relayd_connect(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
629 | { |
630 | /* Code flow error. Safety net. */ | |
6151a90f | 631 | assert(rsock); |
00e2e675 | 632 | |
f96e4545 MD |
633 | if (!rsock->sock.ops) { |
634 | /* | |
635 | * Attempting a connect on a non-initialized socket. | |
636 | */ | |
637 | return -ECONNRESET; | |
638 | } | |
639 | ||
00e2e675 DG |
640 | DBG3("Relayd connect ..."); |
641 | ||
6151a90f | 642 | return rsock->sock.ops->connect(&rsock->sock); |
00e2e675 DG |
643 | } |
644 | ||
645 | /* | |
6151a90f | 646 | * Close relayd socket with an allocated lttcomm_relayd_sock. |
ffe60014 DG |
647 | * |
648 | * If no socket operations are found, simply return 0 meaning that everything | |
649 | * is fine. Without operations, the socket can not possibly be opened or used. | |
650 | * This is possible if the socket was allocated but not created. However, the | |
651 | * caller could simply use it to store a valid file descriptor for instance | |
652 | * passed over a Unix socket and call this to cleanup but still without a valid | |
653 | * ops pointer. | |
654 | * | |
655 | * Return the close returned value. On error, a negative value is usually | |
656 | * returned back from close(2). | |
00e2e675 | 657 | */ |
6151a90f | 658 | int relayd_close(struct lttcomm_relayd_sock *rsock) |
00e2e675 | 659 | { |
ffe60014 DG |
660 | int ret; |
661 | ||
00e2e675 | 662 | /* Code flow error. Safety net. */ |
6151a90f | 663 | assert(rsock); |
00e2e675 | 664 | |
ffe60014 | 665 | /* An invalid fd is fine, return success. */ |
6151a90f | 666 | if (rsock->sock.fd < 0) { |
ffe60014 DG |
667 | ret = 0; |
668 | goto end; | |
669 | } | |
670 | ||
6151a90f | 671 | DBG3("Relayd closing socket %d", rsock->sock.fd); |
00e2e675 | 672 | |
6151a90f JD |
673 | if (rsock->sock.ops) { |
674 | ret = rsock->sock.ops->close(&rsock->sock); | |
ffe60014 DG |
675 | } else { |
676 | /* Default call if no specific ops found. */ | |
6151a90f | 677 | ret = close(rsock->sock.fd); |
ffe60014 DG |
678 | if (ret < 0) { |
679 | PERROR("relayd_close default close"); | |
680 | } | |
681 | } | |
f96e4545 | 682 | rsock->sock.fd = -1; |
ffe60014 DG |
683 | |
684 | end: | |
685 | return ret; | |
00e2e675 DG |
686 | } |
687 | ||
688 | /* | |
689 | * Send data header structure to the relayd. | |
690 | */ | |
6151a90f | 691 | int relayd_send_data_hdr(struct lttcomm_relayd_sock *rsock, |
00e2e675 DG |
692 | struct lttcomm_relayd_data_hdr *hdr, size_t size) |
693 | { | |
694 | int ret; | |
695 | ||
696 | /* Code flow error. Safety net. */ | |
6151a90f | 697 | assert(rsock); |
00e2e675 DG |
698 | assert(hdr); |
699 | ||
f96e4545 MD |
700 | if (rsock->sock.fd < 0) { |
701 | return -ECONNRESET; | |
702 | } | |
703 | ||
8fd623e0 | 704 | DBG3("Relayd sending data header of size %zu", size); |
00e2e675 DG |
705 | |
706 | /* Again, safety net */ | |
707 | if (size == 0) { | |
708 | size = sizeof(struct lttcomm_relayd_data_hdr); | |
709 | } | |
710 | ||
711 | /* Only send data header. */ | |
6151a90f | 712 | ret = rsock->sock.ops->sendmsg(&rsock->sock, hdr, size, 0); |
00e2e675 | 713 | if (ret < 0) { |
8994307f | 714 | ret = -errno; |
00e2e675 DG |
715 | goto error; |
716 | } | |
717 | ||
718 | /* | |
719 | * The data MUST be sent right after that command for the receive on the | |
720 | * other end to match the size in the header. | |
721 | */ | |
722 | ||
723 | error: | |
724 | return ret; | |
725 | } | |
173af62f DG |
726 | |
727 | /* | |
728 | * Send close stream command to the relayd. | |
729 | */ | |
6151a90f | 730 | int relayd_send_close_stream(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
173af62f DG |
731 | uint64_t last_net_seq_num) |
732 | { | |
733 | int ret; | |
734 | struct lttcomm_relayd_close_stream msg; | |
735 | struct lttcomm_relayd_generic_reply reply; | |
736 | ||
737 | /* Code flow error. Safety net. */ | |
6151a90f | 738 | assert(rsock); |
173af62f | 739 | |
77c7c900 | 740 | DBG("Relayd closing stream id %" PRIu64, stream_id); |
173af62f | 741 | |
53efb85a | 742 | memset(&msg, 0, sizeof(msg)); |
173af62f DG |
743 | msg.stream_id = htobe64(stream_id); |
744 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
745 | ||
746 | /* Send command */ | |
6151a90f | 747 | ret = send_command(rsock, RELAYD_CLOSE_STREAM, (void *) &msg, sizeof(msg), 0); |
173af62f DG |
748 | if (ret < 0) { |
749 | goto error; | |
750 | } | |
751 | ||
20275fe8 | 752 | /* Receive response */ |
6151a90f | 753 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
173af62f DG |
754 | if (ret < 0) { |
755 | goto error; | |
756 | } | |
757 | ||
758 | reply.ret_code = be32toh(reply.ret_code); | |
759 | ||
760 | /* Return session id or negative ret code. */ | |
f73fabfd | 761 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
762 | ret = -1; |
763 | ERR("Relayd close stream replied error %d", reply.ret_code); | |
173af62f DG |
764 | } else { |
765 | /* Success */ | |
766 | ret = 0; | |
767 | } | |
768 | ||
77c7c900 | 769 | DBG("Relayd close stream id %" PRIu64 " successfully", stream_id); |
173af62f DG |
770 | |
771 | error: | |
772 | return ret; | |
773 | } | |
c8f59ee5 DG |
774 | |
775 | /* | |
776 | * Check for data availability for a given stream id. | |
777 | * | |
6d805429 | 778 | * Return 0 if NOT pending, 1 if so and a negative value on error. |
c8f59ee5 | 779 | */ |
6151a90f | 780 | int relayd_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
c8f59ee5 DG |
781 | uint64_t last_net_seq_num) |
782 | { | |
783 | int ret; | |
6d805429 | 784 | struct lttcomm_relayd_data_pending msg; |
c8f59ee5 DG |
785 | struct lttcomm_relayd_generic_reply reply; |
786 | ||
787 | /* Code flow error. Safety net. */ | |
6151a90f | 788 | assert(rsock); |
c8f59ee5 | 789 | |
6d805429 | 790 | DBG("Relayd data pending for stream id %" PRIu64, stream_id); |
c8f59ee5 | 791 | |
53efb85a | 792 | memset(&msg, 0, sizeof(msg)); |
c8f59ee5 DG |
793 | msg.stream_id = htobe64(stream_id); |
794 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
795 | ||
796 | /* Send command */ | |
6151a90f | 797 | ret = send_command(rsock, RELAYD_DATA_PENDING, (void *) &msg, |
c8f59ee5 DG |
798 | sizeof(msg), 0); |
799 | if (ret < 0) { | |
800 | goto error; | |
801 | } | |
802 | ||
20275fe8 | 803 | /* Receive response */ |
6151a90f | 804 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
805 | if (ret < 0) { |
806 | goto error; | |
807 | } | |
808 | ||
809 | reply.ret_code = be32toh(reply.ret_code); | |
810 | ||
811 | /* Return session id or negative ret code. */ | |
812 | if (reply.ret_code >= LTTNG_OK) { | |
bb63afd9 | 813 | ERR("Relayd data pending replied error %d", reply.ret_code); |
c8f59ee5 DG |
814 | } |
815 | ||
816 | /* At this point, the ret code is either 1 or 0 */ | |
817 | ret = reply.ret_code; | |
818 | ||
6d805429 | 819 | DBG("Relayd data is %s pending for stream id %" PRIu64, |
9dd26bb9 | 820 | ret == 1 ? "" : "NOT", stream_id); |
c8f59ee5 DG |
821 | |
822 | error: | |
823 | return ret; | |
824 | } | |
825 | ||
826 | /* | |
827 | * Check on the relayd side for a quiescent state on the control socket. | |
828 | */ | |
6151a90f | 829 | int relayd_quiescent_control(struct lttcomm_relayd_sock *rsock, |
ad7051c0 | 830 | uint64_t metadata_stream_id) |
c8f59ee5 DG |
831 | { |
832 | int ret; | |
ad7051c0 | 833 | struct lttcomm_relayd_quiescent_control msg; |
c8f59ee5 DG |
834 | struct lttcomm_relayd_generic_reply reply; |
835 | ||
836 | /* Code flow error. Safety net. */ | |
6151a90f | 837 | assert(rsock); |
c8f59ee5 DG |
838 | |
839 | DBG("Relayd checking quiescent control state"); | |
840 | ||
53efb85a | 841 | memset(&msg, 0, sizeof(msg)); |
ad7051c0 DG |
842 | msg.stream_id = htobe64(metadata_stream_id); |
843 | ||
c8f59ee5 | 844 | /* Send command */ |
6151a90f | 845 | ret = send_command(rsock, RELAYD_QUIESCENT_CONTROL, &msg, sizeof(msg), 0); |
c8f59ee5 DG |
846 | if (ret < 0) { |
847 | goto error; | |
848 | } | |
849 | ||
20275fe8 | 850 | /* Receive response */ |
6151a90f | 851 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
852 | if (ret < 0) { |
853 | goto error; | |
854 | } | |
855 | ||
856 | reply.ret_code = be32toh(reply.ret_code); | |
857 | ||
858 | /* Return session id or negative ret code. */ | |
859 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
860 | ret = -1; |
861 | ERR("Relayd quiescent control replied error %d", reply.ret_code); | |
c8f59ee5 DG |
862 | goto error; |
863 | } | |
864 | ||
865 | /* Control socket is quiescent */ | |
6d805429 | 866 | return 0; |
c8f59ee5 DG |
867 | |
868 | error: | |
869 | return ret; | |
870 | } | |
f7079f67 DG |
871 | |
872 | /* | |
873 | * Begin a data pending command for a specific session id. | |
874 | */ | |
6151a90f | 875 | int relayd_begin_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id) |
f7079f67 DG |
876 | { |
877 | int ret; | |
878 | struct lttcomm_relayd_begin_data_pending msg; | |
879 | struct lttcomm_relayd_generic_reply reply; | |
880 | ||
881 | /* Code flow error. Safety net. */ | |
6151a90f | 882 | assert(rsock); |
f7079f67 DG |
883 | |
884 | DBG("Relayd begin data pending"); | |
885 | ||
53efb85a | 886 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
887 | msg.session_id = htobe64(id); |
888 | ||
889 | /* Send command */ | |
6151a90f | 890 | ret = send_command(rsock, RELAYD_BEGIN_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
891 | if (ret < 0) { |
892 | goto error; | |
893 | } | |
894 | ||
20275fe8 | 895 | /* Receive response */ |
6151a90f | 896 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
897 | if (ret < 0) { |
898 | goto error; | |
899 | } | |
900 | ||
901 | reply.ret_code = be32toh(reply.ret_code); | |
902 | ||
903 | /* Return session id or negative ret code. */ | |
904 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
905 | ret = -1; |
906 | ERR("Relayd begin data pending replied error %d", reply.ret_code); | |
f7079f67 DG |
907 | goto error; |
908 | } | |
909 | ||
910 | return 0; | |
911 | ||
912 | error: | |
913 | return ret; | |
914 | } | |
915 | ||
916 | /* | |
917 | * End a data pending command for a specific session id. | |
918 | * | |
919 | * Return 0 on success and set is_data_inflight to 0 if no data is being | |
920 | * streamed or 1 if it is the case. | |
921 | */ | |
6151a90f | 922 | int relayd_end_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id, |
f7079f67 DG |
923 | unsigned int *is_data_inflight) |
924 | { | |
af6c30b5 | 925 | int ret, recv_ret; |
f7079f67 DG |
926 | struct lttcomm_relayd_end_data_pending msg; |
927 | struct lttcomm_relayd_generic_reply reply; | |
928 | ||
929 | /* Code flow error. Safety net. */ | |
6151a90f | 930 | assert(rsock); |
f7079f67 DG |
931 | |
932 | DBG("Relayd end data pending"); | |
933 | ||
53efb85a | 934 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
935 | msg.session_id = htobe64(id); |
936 | ||
937 | /* Send command */ | |
6151a90f | 938 | ret = send_command(rsock, RELAYD_END_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
939 | if (ret < 0) { |
940 | goto error; | |
941 | } | |
942 | ||
20275fe8 | 943 | /* Receive response */ |
6151a90f | 944 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
945 | if (ret < 0) { |
946 | goto error; | |
947 | } | |
948 | ||
af6c30b5 DG |
949 | recv_ret = be32toh(reply.ret_code); |
950 | if (recv_ret < 0) { | |
951 | ret = recv_ret; | |
f7079f67 DG |
952 | goto error; |
953 | } | |
954 | ||
af6c30b5 | 955 | *is_data_inflight = recv_ret; |
f7079f67 | 956 | |
af6c30b5 | 957 | DBG("Relayd end data pending is data inflight: %d", recv_ret); |
f7079f67 DG |
958 | |
959 | return 0; | |
960 | ||
961 | error: | |
962 | return ret; | |
963 | } | |
1c20f0e2 JD |
964 | |
965 | /* | |
966 | * Send index to the relayd. | |
967 | */ | |
968 | int relayd_send_index(struct lttcomm_relayd_sock *rsock, | |
50adc264 | 969 | struct ctf_packet_index *index, uint64_t relay_stream_id, |
1c20f0e2 JD |
970 | uint64_t net_seq_num) |
971 | { | |
972 | int ret; | |
973 | struct lttcomm_relayd_index msg; | |
974 | struct lttcomm_relayd_generic_reply reply; | |
975 | ||
976 | /* Code flow error. Safety net. */ | |
977 | assert(rsock); | |
978 | ||
979 | if (rsock->minor < 4) { | |
980 | DBG("Not sending indexes before protocol 2.4"); | |
981 | ret = 0; | |
982 | goto error; | |
983 | } | |
984 | ||
985 | DBG("Relayd sending index for stream ID %" PRIu64, relay_stream_id); | |
986 | ||
53efb85a | 987 | memset(&msg, 0, sizeof(msg)); |
1c20f0e2 JD |
988 | msg.relay_stream_id = htobe64(relay_stream_id); |
989 | msg.net_seq_num = htobe64(net_seq_num); | |
990 | ||
991 | /* The index is already in big endian. */ | |
992 | msg.packet_size = index->packet_size; | |
993 | msg.content_size = index->content_size; | |
994 | msg.timestamp_begin = index->timestamp_begin; | |
995 | msg.timestamp_end = index->timestamp_end; | |
996 | msg.events_discarded = index->events_discarded; | |
997 | msg.stream_id = index->stream_id; | |
998 | ||
234cd636 JD |
999 | if (rsock->minor >= 8) { |
1000 | msg.stream_instance_id = index->stream_instance_id; | |
1001 | msg.packet_seq_num = index->packet_seq_num; | |
1002 | } | |
1003 | ||
1c20f0e2 | 1004 | /* Send command */ |
f8f3885c MD |
1005 | ret = send_command(rsock, RELAYD_SEND_INDEX, &msg, |
1006 | lttcomm_relayd_index_len(lttng_to_index_major(rsock->major, | |
1007 | rsock->minor), | |
1008 | lttng_to_index_minor(rsock->major, rsock->minor)), | |
1009 | 0); | |
1c20f0e2 JD |
1010 | if (ret < 0) { |
1011 | goto error; | |
1012 | } | |
1013 | ||
1014 | /* Receive response */ | |
1015 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1016 | if (ret < 0) { | |
1017 | goto error; | |
1018 | } | |
1019 | ||
1020 | reply.ret_code = be32toh(reply.ret_code); | |
1021 | ||
1022 | /* Return session id or negative ret code. */ | |
1023 | if (reply.ret_code != LTTNG_OK) { | |
1024 | ret = -1; | |
1025 | ERR("Relayd send index replied error %d", reply.ret_code); | |
1026 | } else { | |
1027 | /* Success */ | |
1028 | ret = 0; | |
1029 | } | |
1030 | ||
1031 | error: | |
1032 | return ret; | |
1033 | } | |
93ec662e JD |
1034 | |
1035 | /* | |
1036 | * Ask the relay to reset the metadata trace file (regeneration). | |
1037 | */ | |
1038 | int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, | |
1039 | uint64_t stream_id, uint64_t version) | |
1040 | { | |
1041 | int ret; | |
1042 | struct lttcomm_relayd_reset_metadata msg; | |
1043 | struct lttcomm_relayd_generic_reply reply; | |
1044 | ||
1045 | /* Code flow error. Safety net. */ | |
1046 | assert(rsock); | |
1047 | ||
1048 | /* Should have been prevented by the sessiond. */ | |
1049 | if (rsock->minor < 8) { | |
1050 | ERR("Metadata regeneration unsupported before 2.8"); | |
1051 | ret = -1; | |
1052 | goto error; | |
1053 | } | |
1054 | ||
1055 | DBG("Relayd reset metadata stream id %" PRIu64, stream_id); | |
1056 | ||
1057 | memset(&msg, 0, sizeof(msg)); | |
1058 | msg.stream_id = htobe64(stream_id); | |
1059 | msg.version = htobe64(version); | |
1060 | ||
1061 | /* Send command */ | |
1062 | ret = send_command(rsock, RELAYD_RESET_METADATA, (void *) &msg, sizeof(msg), 0); | |
1063 | if (ret < 0) { | |
1064 | goto error; | |
1065 | } | |
1066 | ||
1067 | /* Receive response */ | |
1068 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1069 | if (ret < 0) { | |
1070 | goto error; | |
1071 | } | |
1072 | ||
1073 | reply.ret_code = be32toh(reply.ret_code); | |
1074 | ||
1075 | /* Return session id or negative ret code. */ | |
1076 | if (reply.ret_code != LTTNG_OK) { | |
1077 | ret = -1; | |
1078 | ERR("Relayd reset metadata replied error %d", reply.ret_code); | |
1079 | } else { | |
1080 | /* Success */ | |
1081 | ret = 0; | |
1082 | } | |
1083 | ||
1084 | DBG("Relayd reset metadata stream id %" PRIu64 " successfully", stream_id); | |
1085 | ||
1086 | error: | |
1087 | return ret; | |
1088 | } | |
a1ae2ea5 | 1089 | |
d73bf3d7 JD |
1090 | int relayd_rotate_stream(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
1091 | const char *new_pathname, uint64_t new_chunk_id, | |
1092 | uint64_t seq_num) | |
1093 | { | |
1094 | int ret; | |
1095 | struct lttcomm_relayd_rotate_stream *msg = NULL; | |
1096 | struct lttcomm_relayd_generic_reply reply; | |
1097 | size_t len; | |
1098 | int msg_len; | |
1099 | ||
1100 | /* Code flow error. Safety net. */ | |
1101 | assert(rsock); | |
1102 | ||
1103 | DBG("Sending rotate stream id %" PRIu64 " command to relayd", stream_id); | |
1104 | ||
1105 | /* Account for the trailing NULL. */ | |
27283937 | 1106 | len = lttng_strnlen(new_pathname, LTTNG_PATH_MAX) + 1; |
d73bf3d7 JD |
1107 | if (len > LTTNG_PATH_MAX) { |
1108 | ERR("Path used in relayd rotate stream command exceeds the maximal allowed length"); | |
1109 | ret = -1; | |
1110 | goto error; | |
1111 | } | |
1112 | ||
1113 | msg_len = offsetof(struct lttcomm_relayd_rotate_stream, new_pathname) + len; | |
1114 | msg = zmalloc(msg_len); | |
1115 | if (!msg) { | |
1116 | PERROR("Failed to allocate relayd rotate stream command of %d bytes", | |
1117 | msg_len); | |
1118 | ret = -1; | |
1119 | goto error; | |
1120 | } | |
1121 | ||
1122 | if (lttng_strncpy(msg->new_pathname, new_pathname, len)) { | |
1123 | ret = -1; | |
1124 | ERR("Failed to copy relayd rotate stream command's new path name"); | |
1125 | goto error; | |
1126 | } | |
1127 | ||
1128 | msg->pathname_length = htobe32(len); | |
1129 | msg->stream_id = htobe64(stream_id); | |
1130 | msg->new_chunk_id = htobe64(new_chunk_id); | |
1131 | /* | |
1132 | * The seq_num is invalid for metadata streams, but it is ignored on | |
1133 | * the relay. | |
1134 | */ | |
1135 | msg->rotate_at_seq_num = htobe64(seq_num); | |
1136 | ||
1137 | /* Send command. */ | |
1138 | ret = send_command(rsock, RELAYD_ROTATE_STREAM, (void *) msg, msg_len, 0); | |
1139 | if (ret < 0) { | |
1140 | ERR("Send rotate command"); | |
1141 | goto error; | |
1142 | } | |
1143 | ||
1144 | /* Receive response. */ | |
1145 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1146 | if (ret < 0) { | |
1147 | ERR("Receive rotate reply"); | |
1148 | goto error; | |
1149 | } | |
1150 | ||
1151 | reply.ret_code = be32toh(reply.ret_code); | |
1152 | ||
1153 | /* Return session id or negative ret code. */ | |
1154 | if (reply.ret_code != LTTNG_OK) { | |
1155 | ret = -1; | |
1156 | ERR("Relayd rotate stream replied error %d", reply.ret_code); | |
1157 | } else { | |
1158 | /* Success. */ | |
1159 | ret = 0; | |
1160 | DBG("Relayd rotated stream id %" PRIu64 " successfully", stream_id); | |
1161 | } | |
1162 | ||
1163 | error: | |
1164 | free(msg); | |
1165 | return ret; | |
1166 | } | |
1167 | ||
00fb02ac JD |
1168 | int relayd_rotate_rename(struct lttcomm_relayd_sock *rsock, |
1169 | const char *old_path, const char *new_path) | |
1170 | { | |
1171 | int ret; | |
1172 | struct lttcomm_relayd_rotate_rename *msg = NULL; | |
1173 | struct lttcomm_relayd_generic_reply reply; | |
1174 | size_t old_path_length, new_path_length; | |
1175 | size_t msg_length; | |
1176 | ||
1177 | /* Code flow error. Safety net. */ | |
1178 | assert(rsock); | |
1179 | ||
1180 | DBG("Relayd rename chunk %s to %s", old_path, new_path); | |
1181 | ||
1182 | /* The two paths are sent with a '\0' delimiter between them. */ | |
1183 | old_path_length = strlen(old_path) + 1; | |
1184 | new_path_length = strlen(new_path) + 1; | |
1185 | ||
1186 | msg_length = sizeof(*msg) + old_path_length + new_path_length; | |
1187 | msg = zmalloc(msg_length); | |
1188 | if (!msg) { | |
1189 | PERROR("zmalloc rotate-rename command message"); | |
1190 | ret = -1; | |
1191 | goto error; | |
1192 | } | |
1193 | ||
1194 | assert(old_path_length <= UINT32_MAX); | |
1195 | msg->old_path_length = htobe32(old_path_length); | |
1196 | ||
1197 | assert(new_path_length <= UINT32_MAX); | |
1198 | msg->new_path_length = htobe32(new_path_length); | |
1199 | ||
1200 | strcpy(msg->paths, old_path); | |
1201 | strcpy(msg->paths + old_path_length, new_path); | |
1202 | ||
1203 | /* Send command */ | |
1204 | ret = send_command(rsock, RELAYD_ROTATE_RENAME, (const void *) msg, | |
1205 | msg_length, 0); | |
1206 | if (ret < 0) { | |
1207 | goto error; | |
1208 | } | |
1209 | ||
1210 | /* Receive response */ | |
1211 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1212 | if (ret < 0) { | |
1213 | goto error; | |
1214 | } | |
1215 | ||
1216 | reply.ret_code = be32toh(reply.ret_code); | |
1217 | ||
1218 | /* Return session id or negative ret code. */ | |
1219 | if (reply.ret_code != LTTNG_OK) { | |
1220 | ret = -1; | |
1221 | ERR("Relayd rotate rename replied error %d", reply.ret_code); | |
1222 | } else { | |
1223 | /* Success */ | |
1224 | ret = 0; | |
1225 | } | |
1226 | ||
1227 | DBG("Relayd rotate rename completed successfully"); | |
1228 | ||
1229 | error: | |
1230 | free(msg); | |
1231 | return ret; | |
1232 | } | |
1233 | ||
d88744a4 JD |
1234 | int relayd_rotate_pending(struct lttcomm_relayd_sock *rsock, uint64_t chunk_id) |
1235 | { | |
1236 | int ret; | |
1237 | struct lttcomm_relayd_rotate_pending msg; | |
1238 | struct lttcomm_relayd_rotate_pending_reply reply; | |
1239 | ||
1240 | /* Code flow error. Safety net. */ | |
1241 | assert(rsock); | |
1242 | ||
1243 | DBG("Querying relayd for rotate pending with chunk_id %" PRIu64, | |
1244 | chunk_id); | |
1245 | ||
1246 | memset(&msg, 0, sizeof(msg)); | |
1247 | msg.chunk_id = htobe64(chunk_id); | |
1248 | ||
1249 | /* Send command */ | |
1250 | ret = send_command(rsock, RELAYD_ROTATE_PENDING, (void *) &msg, | |
1251 | sizeof(msg), 0); | |
1252 | if (ret < 0) { | |
1253 | goto error; | |
1254 | } | |
1255 | ||
1256 | /* Receive response */ | |
1257 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1258 | if (ret < 0) { | |
1259 | goto error; | |
1260 | } | |
1261 | ||
1262 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1263 | ||
1264 | /* Return session id or negative ret code. */ | |
1265 | if (reply.generic.ret_code != LTTNG_OK) { | |
1266 | ret = -reply.generic.ret_code; | |
1267 | ERR("Relayd rotate pending replied with error %d", ret); | |
1268 | goto error; | |
1269 | } else { | |
1270 | /* No error, just rotate pending state */ | |
1271 | if (reply.is_pending == 0 || reply.is_pending == 1) { | |
1272 | ret = reply.is_pending; | |
1273 | DBG("Relayd rotate pending command completed successfully with result \"%s\"", | |
1274 | ret ? "rotation pending" : "rotation NOT pending"); | |
1275 | } else { | |
1276 | ret = -LTTNG_ERR_UNK; | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | error: | |
1281 | return ret; | |
1282 | } | |
1283 | ||
a1ae2ea5 JD |
1284 | int relayd_mkdir(struct lttcomm_relayd_sock *rsock, const char *path) |
1285 | { | |
1286 | int ret; | |
1287 | struct lttcomm_relayd_mkdir *msg; | |
1288 | struct lttcomm_relayd_generic_reply reply; | |
1289 | size_t len; | |
1290 | ||
1291 | /* Code flow error. Safety net. */ | |
1292 | assert(rsock); | |
1293 | ||
1294 | DBG("Relayd mkdir path %s", path); | |
1295 | ||
1296 | len = strlen(path) + 1; | |
1297 | msg = zmalloc(sizeof(msg->length) + len); | |
1298 | if (!msg) { | |
1299 | PERROR("Alloc mkdir msg"); | |
1300 | ret = -1; | |
1301 | goto error; | |
1302 | } | |
1303 | msg->length = htobe32((uint32_t) len); | |
1304 | ||
1305 | if (lttng_strncpy(msg->path, path, len)) { | |
1306 | ret = -1; | |
1307 | goto error; | |
1308 | } | |
1309 | ||
1310 | /* Send command */ | |
1311 | ret = send_command(rsock, RELAYD_MKDIR, (void *) msg, | |
1312 | sizeof(msg->length) + len, 0); | |
1313 | if (ret < 0) { | |
1314 | goto error; | |
1315 | } | |
1316 | ||
1317 | /* Receive response */ | |
1318 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1319 | if (ret < 0) { | |
1320 | goto error; | |
1321 | } | |
1322 | ||
1323 | reply.ret_code = be32toh(reply.ret_code); | |
1324 | ||
1325 | /* Return session id or negative ret code. */ | |
1326 | if (reply.ret_code != LTTNG_OK) { | |
1327 | ret = -1; | |
1328 | ERR("Relayd mkdir replied error %d", reply.ret_code); | |
1329 | } else { | |
1330 | /* Success */ | |
1331 | ret = 0; | |
1332 | } | |
1333 | ||
1334 | DBG("Relayd mkdir completed successfully"); | |
1335 | ||
1336 | error: | |
1337 | free(msg); | |
1338 | return ret; | |
a1ae2ea5 | 1339 | } |