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> |
d2956687 | 32 | #include <common/trace-chunk.h> |
c35f9726 | 33 | #include <common/string-utils/format.h> |
00e2e675 DG |
34 | |
35 | #include "relayd.h" | |
36 | ||
070b6a86 MD |
37 | static |
38 | bool relayd_supports_chunks(const struct lttcomm_relayd_sock *sock) | |
39 | { | |
40 | if (sock->major > 2) { | |
41 | return true; | |
42 | } else if (sock->major == 2 && sock->minor >= 11) { | |
43 | return true; | |
44 | } | |
45 | return false; | |
46 | } | |
47 | ||
00e2e675 DG |
48 | /* |
49 | * Send command. Fill up the header and append the data. | |
50 | */ | |
6151a90f | 51 | static int send_command(struct lttcomm_relayd_sock *rsock, |
76b9afaa | 52 | enum lttcomm_relayd_command cmd, const void *data, size_t size, |
00e2e675 DG |
53 | int flags) |
54 | { | |
55 | int ret; | |
56 | struct lttcomm_relayd_hdr header; | |
57 | char *buf; | |
58 | uint64_t buf_size = sizeof(header); | |
59 | ||
f96e4545 MD |
60 | if (rsock->sock.fd < 0) { |
61 | return -ECONNRESET; | |
62 | } | |
63 | ||
00e2e675 DG |
64 | if (data) { |
65 | buf_size += size; | |
66 | } | |
67 | ||
68 | buf = zmalloc(buf_size); | |
69 | if (buf == NULL) { | |
70 | PERROR("zmalloc relayd send command buf"); | |
71 | ret = -1; | |
72 | goto alloc_error; | |
73 | } | |
74 | ||
53efb85a | 75 | memset(&header, 0, sizeof(header)); |
00e2e675 DG |
76 | header.cmd = htobe32(cmd); |
77 | header.data_size = htobe64(size); | |
78 | ||
79 | /* Zeroed for now since not used. */ | |
80 | header.cmd_version = 0; | |
81 | header.circuit_id = 0; | |
82 | ||
83 | /* Prepare buffer to send. */ | |
84 | memcpy(buf, &header, sizeof(header)); | |
85 | if (data) { | |
86 | memcpy(buf + sizeof(header), data, size); | |
87 | } | |
88 | ||
06586bbe | 89 | DBG3("Relayd sending command %d of size %" PRIu64, (int) cmd, buf_size); |
6151a90f | 90 | ret = rsock->sock.ops->sendmsg(&rsock->sock, buf, buf_size, flags); |
00e2e675 | 91 | if (ret < 0) { |
06586bbe JG |
92 | PERROR("Failed to send command %d of size %" PRIu64, |
93 | (int) cmd, buf_size); | |
8994307f | 94 | ret = -errno; |
00e2e675 DG |
95 | goto error; |
96 | } | |
00e2e675 DG |
97 | error: |
98 | free(buf); | |
99 | alloc_error: | |
100 | return ret; | |
101 | } | |
102 | ||
103 | /* | |
104 | * Receive reply data on socket. This MUST be call after send_command or else | |
105 | * could result in unexpected behavior(s). | |
106 | */ | |
6151a90f | 107 | static int recv_reply(struct lttcomm_relayd_sock *rsock, void *data, size_t size) |
00e2e675 DG |
108 | { |
109 | int ret; | |
110 | ||
f96e4545 MD |
111 | if (rsock->sock.fd < 0) { |
112 | return -ECONNRESET; | |
113 | } | |
114 | ||
8fd623e0 | 115 | DBG3("Relayd waiting for reply of size %zu", size); |
00e2e675 | 116 | |
6151a90f | 117 | ret = rsock->sock.ops->recvmsg(&rsock->sock, data, size, 0); |
20275fe8 DG |
118 | if (ret <= 0 || ret != size) { |
119 | if (ret == 0) { | |
120 | /* Orderly shutdown. */ | |
6151a90f | 121 | DBG("Socket %d has performed an orderly shutdown", rsock->sock.fd); |
20275fe8 | 122 | } else { |
8fd623e0 | 123 | DBG("Receiving reply failed on sock %d for size %zu with ret %d", |
6151a90f | 124 | rsock->sock.fd, size, ret); |
20275fe8 DG |
125 | } |
126 | /* Always return -1 here and the caller can use errno. */ | |
127 | ret = -1; | |
00e2e675 DG |
128 | goto error; |
129 | } | |
130 | ||
131 | error: | |
132 | return ret; | |
133 | } | |
134 | ||
d3e2ba59 | 135 | /* |
6fa5fe7c MD |
136 | * Starting from 2.11, RELAYD_CREATE_SESSION payload (session_name, |
137 | * hostname, and base_path) have no length restriction on the sender side. | |
f86f6389 JR |
138 | * Length for both payloads is stored in the msg struct. A new dynamic size |
139 | * payload size is introduced. | |
140 | */ | |
141 | static int relayd_create_session_2_11(struct lttcomm_relayd_sock *rsock, | |
fb9a95c4 | 142 | const char *session_name, const char *hostname, |
6fa5fe7c MD |
143 | const char *base_path, int session_live_timer, |
144 | unsigned int snapshot, uint64_t sessiond_session_id, | |
145 | const lttng_uuid sessiond_uuid, const uint64_t *current_chunk_id, | |
46ef2188 | 146 | time_t creation_time, bool session_name_contains_creation_time) |
f86f6389 JR |
147 | { |
148 | int ret; | |
149 | struct lttcomm_relayd_create_session_2_11 *msg = NULL; | |
150 | size_t session_name_len; | |
151 | size_t hostname_len; | |
6fa5fe7c | 152 | size_t base_path_len; |
f86f6389 | 153 | size_t msg_length; |
6fa5fe7c | 154 | char *dst; |
f86f6389 | 155 | |
46ef2188 MD |
156 | if (!base_path) { |
157 | base_path = ""; | |
158 | } | |
159 | /* The three names are sent with a '\0' delimiter between them. */ | |
f86f6389 JR |
160 | session_name_len = strlen(session_name) + 1; |
161 | hostname_len = strlen(hostname) + 1; | |
6fa5fe7c | 162 | base_path_len = base_path ? strlen(base_path) + 1 : 0; |
f86f6389 | 163 | |
6fa5fe7c | 164 | msg_length = sizeof(*msg) + session_name_len + hostname_len + base_path_len; |
f86f6389 JR |
165 | msg = zmalloc(msg_length); |
166 | if (!msg) { | |
167 | PERROR("zmalloc create_session_2_11 command message"); | |
168 | ret = -1; | |
169 | goto error; | |
170 | } | |
171 | ||
172 | assert(session_name_len <= UINT32_MAX); | |
173 | msg->session_name_len = htobe32(session_name_len); | |
174 | ||
175 | assert(hostname_len <= UINT32_MAX); | |
176 | msg->hostname_len = htobe32(hostname_len); | |
177 | ||
6fa5fe7c MD |
178 | assert(base_path_len <= UINT32_MAX); |
179 | msg->base_path_len = htobe32(base_path_len); | |
180 | ||
181 | dst = msg->names; | |
182 | if (lttng_strncpy(dst, session_name, session_name_len)) { | |
183 | ret = -1; | |
184 | goto error; | |
185 | } | |
186 | dst += session_name_len; | |
187 | if (lttng_strncpy(dst, hostname, hostname_len)) { | |
f86f6389 JR |
188 | ret = -1; |
189 | goto error; | |
190 | } | |
6fa5fe7c MD |
191 | dst += hostname_len; |
192 | if (base_path && lttng_strncpy(dst, base_path, base_path_len)) { | |
f86f6389 JR |
193 | ret = -1; |
194 | goto error; | |
195 | } | |
196 | ||
197 | msg->live_timer = htobe32(session_live_timer); | |
198 | msg->snapshot = !!snapshot; | |
199 | ||
658f12fa JG |
200 | lttng_uuid_copy(msg->sessiond_uuid, sessiond_uuid); |
201 | msg->session_id = htobe64(sessiond_session_id); | |
46ef2188 | 202 | msg->session_name_contains_creation_time = session_name_contains_creation_time; |
f39bd140 JG |
203 | if (current_chunk_id) { |
204 | LTTNG_OPTIONAL_SET(&msg->current_chunk_id, | |
205 | htobe64(*current_chunk_id)); | |
206 | } | |
207 | ||
db1da059 JG |
208 | msg->creation_time = htobe64((uint64_t) creation_time); |
209 | ||
f86f6389 JR |
210 | /* Send command */ |
211 | ret = send_command(rsock, RELAYD_CREATE_SESSION, msg, msg_length, 0); | |
212 | if (ret < 0) { | |
213 | goto error; | |
214 | } | |
215 | error: | |
216 | free(msg); | |
217 | return ret; | |
218 | } | |
219 | /* | |
220 | * From 2.4 to 2.10, RELAYD_CREATE_SESSION takes additional parameters to | |
d3e2ba59 JD |
221 | * support the live reading capability. |
222 | */ | |
223 | static int relayd_create_session_2_4(struct lttcomm_relayd_sock *rsock, | |
fb9a95c4 JG |
224 | const char *session_name, const char *hostname, |
225 | int session_live_timer, unsigned int snapshot) | |
d3e2ba59 JD |
226 | { |
227 | int ret; | |
228 | struct lttcomm_relayd_create_session_2_4 msg; | |
229 | ||
3a13ffd5 MD |
230 | if (lttng_strncpy(msg.session_name, session_name, |
231 | sizeof(msg.session_name))) { | |
246777db MD |
232 | ret = -1; |
233 | goto error; | |
234 | } | |
3a13ffd5 | 235 | if (lttng_strncpy(msg.hostname, hostname, sizeof(msg.hostname))) { |
246777db MD |
236 | ret = -1; |
237 | goto error; | |
238 | } | |
d3e2ba59 | 239 | msg.live_timer = htobe32(session_live_timer); |
7d2f7452 | 240 | msg.snapshot = htobe32(snapshot); |
d3e2ba59 JD |
241 | |
242 | /* Send command */ | |
243 | ret = send_command(rsock, RELAYD_CREATE_SESSION, &msg, sizeof(msg), 0); | |
244 | if (ret < 0) { | |
245 | goto error; | |
246 | } | |
247 | ||
248 | error: | |
249 | return ret; | |
250 | } | |
251 | ||
252 | /* | |
253 | * RELAYD_CREATE_SESSION from 2.1 to 2.3. | |
254 | */ | |
42e9a27b | 255 | static int relayd_create_session_2_1(struct lttcomm_relayd_sock *rsock) |
d3e2ba59 JD |
256 | { |
257 | int ret; | |
258 | ||
259 | /* Send command */ | |
260 | ret = send_command(rsock, RELAYD_CREATE_SESSION, NULL, 0, 0); | |
261 | if (ret < 0) { | |
262 | goto error; | |
263 | } | |
264 | ||
265 | error: | |
266 | return ret; | |
267 | } | |
268 | ||
c5b6f4f0 DG |
269 | /* |
270 | * Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and | |
271 | * set session_id of the relayd if we have a successful reply from the relayd. | |
272 | * | |
20275fe8 DG |
273 | * On success, return 0 else a negative value which is either an errno error or |
274 | * a lttng error code from the relayd. | |
c5b6f4f0 | 275 | */ |
fb9a95c4 JG |
276 | int relayd_create_session(struct lttcomm_relayd_sock *rsock, |
277 | uint64_t *relayd_session_id, | |
278 | const char *session_name, const char *hostname, | |
6fa5fe7c | 279 | const char *base_path, int session_live_timer, |
658f12fa | 280 | unsigned int snapshot, uint64_t sessiond_session_id, |
f39bd140 | 281 | const lttng_uuid sessiond_uuid, |
db1da059 | 282 | const uint64_t *current_chunk_id, |
46ef2188 | 283 | time_t creation_time, bool session_name_contains_creation_time) |
c5b6f4f0 DG |
284 | { |
285 | int ret; | |
286 | struct lttcomm_relayd_status_session reply; | |
287 | ||
6151a90f | 288 | assert(rsock); |
658f12fa | 289 | assert(relayd_session_id); |
c5b6f4f0 DG |
290 | |
291 | DBG("Relayd create session"); | |
292 | ||
f86f6389 JR |
293 | if (rsock->minor < 4) { |
294 | /* From 2.1 to 2.3 */ | |
295 | ret = relayd_create_session_2_1(rsock); | |
296 | } else if (rsock->minor >= 4 && rsock->minor < 11) { | |
297 | /* From 2.4 to 2.10 */ | |
298 | ret = relayd_create_session_2_4(rsock, session_name, | |
299 | hostname, session_live_timer, snapshot); | |
300 | } else { | |
301 | /* From 2.11 to ... */ | |
302 | ret = relayd_create_session_2_11(rsock, session_name, | |
6fa5fe7c | 303 | hostname, base_path, session_live_timer, snapshot, |
f39bd140 | 304 | sessiond_session_id, sessiond_uuid, |
46ef2188 MD |
305 | current_chunk_id, creation_time, |
306 | session_name_contains_creation_time); | |
d3e2ba59 JD |
307 | } |
308 | ||
c5b6f4f0 DG |
309 | if (ret < 0) { |
310 | goto error; | |
311 | } | |
312 | ||
20275fe8 | 313 | /* Receive response */ |
6151a90f | 314 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c5b6f4f0 DG |
315 | if (ret < 0) { |
316 | goto error; | |
317 | } | |
318 | ||
319 | reply.session_id = be64toh(reply.session_id); | |
320 | reply.ret_code = be32toh(reply.ret_code); | |
321 | ||
322 | /* Return session id or negative ret code. */ | |
323 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
324 | ret = -1; |
325 | ERR("Relayd create session replied error %d", reply.ret_code); | |
c5b6f4f0 DG |
326 | goto error; |
327 | } else { | |
328 | ret = 0; | |
658f12fa | 329 | *relayd_session_id = reply.session_id; |
c5b6f4f0 DG |
330 | } |
331 | ||
332 | DBG("Relayd session created with id %" PRIu64, reply.session_id); | |
333 | ||
334 | error: | |
335 | return ret; | |
336 | } | |
337 | ||
2f21a469 JR |
338 | static int relayd_add_stream_2_1(struct lttcomm_relayd_sock *rsock, |
339 | const char *channel_name, const char *pathname) | |
340 | { | |
341 | int ret; | |
342 | struct lttcomm_relayd_add_stream msg; | |
343 | ||
344 | memset(&msg, 0, sizeof(msg)); | |
345 | if (lttng_strncpy(msg.channel_name, channel_name, | |
346 | sizeof(msg.channel_name))) { | |
347 | ret = -1; | |
348 | goto error; | |
349 | } | |
350 | ||
351 | if (lttng_strncpy(msg.pathname, pathname, | |
352 | sizeof(msg.pathname))) { | |
353 | ret = -1; | |
354 | goto error; | |
355 | } | |
356 | ||
357 | /* Send command */ | |
358 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
359 | if (ret < 0) { | |
360 | ret = -1; | |
361 | goto error; | |
362 | } | |
363 | ret = 0; | |
364 | error: | |
365 | return ret; | |
366 | } | |
367 | ||
368 | static int relayd_add_stream_2_2(struct lttcomm_relayd_sock *rsock, | |
369 | const char *channel_name, const char *pathname, | |
370 | uint64_t tracefile_size, uint64_t tracefile_count) | |
371 | { | |
372 | int ret; | |
373 | struct lttcomm_relayd_add_stream_2_2 msg; | |
374 | ||
375 | memset(&msg, 0, sizeof(msg)); | |
376 | /* Compat with relayd 2.2 to 2.10 */ | |
377 | if (lttng_strncpy(msg.channel_name, channel_name, | |
378 | sizeof(msg.channel_name))) { | |
379 | ret = -1; | |
380 | goto error; | |
381 | } | |
382 | if (lttng_strncpy(msg.pathname, pathname, | |
383 | sizeof(msg.pathname))) { | |
384 | ret = -1; | |
385 | goto error; | |
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, sizeof(msg), 0); | |
392 | if (ret < 0) { | |
393 | goto error; | |
394 | } | |
395 | ret = 0; | |
396 | error: | |
397 | return ret; | |
398 | } | |
399 | ||
400 | static int relayd_add_stream_2_11(struct lttcomm_relayd_sock *rsock, | |
401 | const char *channel_name, const char *pathname, | |
b00e554e JG |
402 | uint64_t tracefile_size, uint64_t tracefile_count, |
403 | uint64_t trace_archive_id) | |
2f21a469 JR |
404 | { |
405 | int ret; | |
406 | struct lttcomm_relayd_add_stream_2_11 *msg = NULL; | |
407 | size_t channel_name_len; | |
408 | size_t pathname_len; | |
409 | size_t msg_length; | |
410 | ||
411 | /* The two names are sent with a '\0' delimiter between them. */ | |
412 | channel_name_len = strlen(channel_name) + 1; | |
413 | pathname_len = strlen(pathname) + 1; | |
414 | ||
415 | msg_length = sizeof(*msg) + channel_name_len + pathname_len; | |
416 | msg = zmalloc(msg_length); | |
417 | if (!msg) { | |
418 | PERROR("zmalloc add_stream_2_11 command message"); | |
419 | ret = -1; | |
420 | goto error; | |
421 | } | |
422 | ||
423 | assert(channel_name_len <= UINT32_MAX); | |
424 | msg->channel_name_len = htobe32(channel_name_len); | |
425 | ||
426 | assert(pathname_len <= UINT32_MAX); | |
427 | msg->pathname_len = htobe32(pathname_len); | |
428 | ||
429 | if (lttng_strncpy(msg->names, channel_name, channel_name_len)) { | |
430 | ret = -1; | |
431 | goto error; | |
432 | } | |
433 | if (lttng_strncpy(msg->names + channel_name_len, pathname, pathname_len)) { | |
434 | ret = -1; | |
435 | goto error; | |
436 | } | |
437 | ||
438 | msg->tracefile_size = htobe64(tracefile_size); | |
439 | msg->tracefile_count = htobe64(tracefile_count); | |
348a81dc | 440 | msg->trace_chunk_id = htobe64(trace_archive_id); |
2f21a469 JR |
441 | |
442 | /* Send command */ | |
443 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) msg, msg_length, 0); | |
444 | if (ret < 0) { | |
445 | goto error; | |
446 | } | |
447 | ret = 0; | |
448 | error: | |
449 | free(msg); | |
450 | return ret; | |
451 | } | |
452 | ||
00e2e675 DG |
453 | /* |
454 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
455 | * | |
070b6a86 MD |
456 | * Chunks are not supported by relayd prior to 2.11, but are used to |
457 | * internally between session daemon and consumer daemon to keep track | |
458 | * of the channel and stream output path. | |
459 | * | |
00e2e675 DG |
460 | * On success return 0 else return ret_code negative value. |
461 | */ | |
6151a90f | 462 | int relayd_add_stream(struct lttcomm_relayd_sock *rsock, const char *channel_name, |
0f907de1 | 463 | const char *pathname, uint64_t *stream_id, |
0b50e4b3 | 464 | uint64_t tracefile_size, uint64_t tracefile_count, |
d2956687 | 465 | struct lttng_trace_chunk *trace_chunk) |
00e2e675 DG |
466 | { |
467 | int ret; | |
00e2e675 DG |
468 | struct lttcomm_relayd_status_stream reply; |
469 | ||
470 | /* Code flow error. Safety net. */ | |
6151a90f | 471 | assert(rsock); |
00e2e675 DG |
472 | assert(channel_name); |
473 | assert(pathname); | |
070b6a86 | 474 | assert(trace_chunk); |
00e2e675 DG |
475 | |
476 | DBG("Relayd adding stream for channel name %s", channel_name); | |
477 | ||
0f907de1 JD |
478 | /* Compat with relayd 2.1 */ |
479 | if (rsock->minor == 1) { | |
2f21a469 JR |
480 | /* For 2.1 */ |
481 | ret = relayd_add_stream_2_1(rsock, channel_name, pathname); | |
482 | ||
483 | } else if (rsock->minor > 1 && rsock->minor < 11) { | |
484 | /* From 2.2 to 2.10 */ | |
485 | ret = relayd_add_stream_2_2(rsock, channel_name, pathname, | |
486 | tracefile_size, tracefile_count); | |
0f907de1 | 487 | } else { |
d2956687 JG |
488 | enum lttng_trace_chunk_status chunk_status; |
489 | uint64_t chunk_id; | |
490 | ||
d2956687 JG |
491 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, |
492 | &chunk_id); | |
493 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
494 | ||
2f21a469 JR |
495 | /* From 2.11 to ...*/ |
496 | ret = relayd_add_stream_2_11(rsock, channel_name, pathname, | |
b00e554e | 497 | tracefile_size, tracefile_count, |
d2956687 | 498 | chunk_id); |
2f21a469 | 499 | } |
0f907de1 | 500 | |
2f21a469 JR |
501 | if (ret) { |
502 | ret = -1; | |
503 | goto error; | |
00e2e675 DG |
504 | } |
505 | ||
633d0084 | 506 | /* Waiting for reply */ |
6151a90f | 507 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
00e2e675 DG |
508 | if (ret < 0) { |
509 | goto error; | |
510 | } | |
511 | ||
512 | /* Back to host bytes order. */ | |
513 | reply.handle = be64toh(reply.handle); | |
514 | reply.ret_code = be32toh(reply.ret_code); | |
515 | ||
516 | /* Return session id or negative ret code. */ | |
f73fabfd | 517 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
518 | ret = -1; |
519 | ERR("Relayd add stream replied error %d", reply.ret_code); | |
00e2e675 DG |
520 | } else { |
521 | /* Success */ | |
522 | ret = 0; | |
523 | *stream_id = reply.handle; | |
524 | } | |
525 | ||
77c7c900 | 526 | DBG("Relayd stream added successfully with handle %" PRIu64, |
2f21a469 | 527 | reply.handle); |
00e2e675 DG |
528 | |
529 | error: | |
530 | return ret; | |
531 | } | |
532 | ||
a4baae1b JD |
533 | /* |
534 | * Inform the relay that all the streams for the current channel has been sent. | |
535 | * | |
536 | * On success return 0 else return ret_code negative value. | |
537 | */ | |
538 | int relayd_streams_sent(struct lttcomm_relayd_sock *rsock) | |
539 | { | |
540 | int ret; | |
541 | struct lttcomm_relayd_generic_reply reply; | |
542 | ||
543 | /* Code flow error. Safety net. */ | |
544 | assert(rsock); | |
545 | ||
546 | DBG("Relayd sending streams sent."); | |
547 | ||
548 | /* This feature was introduced in 2.4, ignore it for earlier versions. */ | |
549 | if (rsock->minor < 4) { | |
550 | ret = 0; | |
551 | goto end; | |
552 | } | |
553 | ||
554 | /* Send command */ | |
555 | ret = send_command(rsock, RELAYD_STREAMS_SENT, NULL, 0, 0); | |
556 | if (ret < 0) { | |
557 | goto error; | |
558 | } | |
559 | ||
560 | /* Waiting for reply */ | |
561 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
562 | if (ret < 0) { | |
563 | goto error; | |
564 | } | |
565 | ||
566 | /* Back to host bytes order. */ | |
567 | reply.ret_code = be32toh(reply.ret_code); | |
568 | ||
569 | /* Return session id or negative ret code. */ | |
570 | if (reply.ret_code != LTTNG_OK) { | |
571 | ret = -1; | |
572 | ERR("Relayd streams sent replied error %d", reply.ret_code); | |
573 | goto error; | |
574 | } else { | |
575 | /* Success */ | |
576 | ret = 0; | |
577 | } | |
578 | ||
579 | DBG("Relayd streams sent success"); | |
580 | ||
581 | error: | |
582 | end: | |
583 | return ret; | |
584 | } | |
585 | ||
00e2e675 DG |
586 | /* |
587 | * Check version numbers on the relayd. | |
d4519fa3 JD |
588 | * If major versions are compatible, we assign minor_to_use to the |
589 | * minor version of the procotol we are going to use for this session. | |
00e2e675 | 590 | * |
67d5aa28 JD |
591 | * Return 0 if the two daemons are compatible, LTTNG_ERR_RELAYD_VERSION_FAIL |
592 | * otherwise, or a negative value on network errors. | |
00e2e675 | 593 | */ |
6151a90f | 594 | int relayd_version_check(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
595 | { |
596 | int ret; | |
092b6259 | 597 | struct lttcomm_relayd_version msg; |
00e2e675 DG |
598 | |
599 | /* Code flow error. Safety net. */ | |
6151a90f | 600 | assert(rsock); |
00e2e675 | 601 | |
6151a90f JD |
602 | DBG("Relayd version check for major.minor %u.%u", rsock->major, |
603 | rsock->minor); | |
00e2e675 | 604 | |
53efb85a | 605 | memset(&msg, 0, sizeof(msg)); |
092b6259 | 606 | /* Prepare network byte order before transmission. */ |
6151a90f JD |
607 | msg.major = htobe32(rsock->major); |
608 | msg.minor = htobe32(rsock->minor); | |
092b6259 | 609 | |
00e2e675 | 610 | /* Send command */ |
6151a90f | 611 | ret = send_command(rsock, RELAYD_VERSION, (void *) &msg, sizeof(msg), 0); |
00e2e675 DG |
612 | if (ret < 0) { |
613 | goto error; | |
614 | } | |
615 | ||
20275fe8 | 616 | /* Receive response */ |
6151a90f | 617 | ret = recv_reply(rsock, (void *) &msg, sizeof(msg)); |
00e2e675 DG |
618 | if (ret < 0) { |
619 | goto error; | |
620 | } | |
621 | ||
622 | /* Set back to host bytes order */ | |
092b6259 DG |
623 | msg.major = be32toh(msg.major); |
624 | msg.minor = be32toh(msg.minor); | |
625 | ||
626 | /* | |
627 | * Only validate the major version. If the other side is higher, | |
628 | * communication is not possible. Only major version equal can talk to each | |
629 | * other. If the minor version differs, the lowest version is used by both | |
630 | * sides. | |
092b6259 | 631 | */ |
6151a90f | 632 | if (msg.major != rsock->major) { |
d4519fa3 | 633 | /* Not compatible */ |
67d5aa28 | 634 | ret = LTTNG_ERR_RELAYD_VERSION_FAIL; |
d4519fa3 | 635 | DBG2("Relayd version is NOT compatible. Relayd version %u != %u (us)", |
6151a90f | 636 | msg.major, rsock->major); |
092b6259 | 637 | goto error; |
00e2e675 DG |
638 | } |
639 | ||
092b6259 | 640 | /* |
6151a90f JD |
641 | * If the relayd's minor version is higher, it will adapt to our version so |
642 | * we can continue to use the latest relayd communication data structure. | |
643 | * If the received minor version is higher, the relayd should adapt to us. | |
092b6259 | 644 | */ |
6151a90f JD |
645 | if (rsock->minor > msg.minor) { |
646 | rsock->minor = msg.minor; | |
d4519fa3 | 647 | } |
092b6259 | 648 | |
d4519fa3 JD |
649 | /* Version number compatible */ |
650 | DBG2("Relayd version is compatible, using protocol version %u.%u", | |
6151a90f | 651 | rsock->major, rsock->minor); |
d4519fa3 | 652 | ret = 0; |
00e2e675 DG |
653 | |
654 | error: | |
655 | return ret; | |
656 | } | |
657 | ||
00e2e675 DG |
658 | /* |
659 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
660 | * | |
661 | * On success return 0 else return ret_code negative value. | |
662 | */ | |
6151a90f | 663 | int relayd_send_metadata(struct lttcomm_relayd_sock *rsock, size_t len) |
00e2e675 DG |
664 | { |
665 | int ret; | |
666 | ||
667 | /* Code flow error. Safety net. */ | |
6151a90f | 668 | assert(rsock); |
00e2e675 | 669 | |
77c7c900 | 670 | DBG("Relayd sending metadata of size %zu", len); |
00e2e675 DG |
671 | |
672 | /* Send command */ | |
6151a90f | 673 | ret = send_command(rsock, RELAYD_SEND_METADATA, NULL, len, 0); |
00e2e675 DG |
674 | if (ret < 0) { |
675 | goto error; | |
676 | } | |
677 | ||
678 | DBG2("Relayd metadata added successfully"); | |
679 | ||
680 | /* | |
681 | * After that call, the metadata data MUST be sent to the relayd so the | |
682 | * receive size on the other end matches the len of the metadata packet | |
633d0084 | 683 | * header. This is why we don't wait for a reply here. |
00e2e675 DG |
684 | */ |
685 | ||
686 | error: | |
687 | return ret; | |
688 | } | |
689 | ||
690 | /* | |
6151a90f | 691 | * Connect to relay daemon with an allocated lttcomm_relayd_sock. |
00e2e675 | 692 | */ |
6151a90f | 693 | int relayd_connect(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
694 | { |
695 | /* Code flow error. Safety net. */ | |
6151a90f | 696 | assert(rsock); |
00e2e675 | 697 | |
f96e4545 MD |
698 | if (!rsock->sock.ops) { |
699 | /* | |
700 | * Attempting a connect on a non-initialized socket. | |
701 | */ | |
702 | return -ECONNRESET; | |
703 | } | |
704 | ||
00e2e675 DG |
705 | DBG3("Relayd connect ..."); |
706 | ||
6151a90f | 707 | return rsock->sock.ops->connect(&rsock->sock); |
00e2e675 DG |
708 | } |
709 | ||
710 | /* | |
6151a90f | 711 | * Close relayd socket with an allocated lttcomm_relayd_sock. |
ffe60014 DG |
712 | * |
713 | * If no socket operations are found, simply return 0 meaning that everything | |
714 | * is fine. Without operations, the socket can not possibly be opened or used. | |
715 | * This is possible if the socket was allocated but not created. However, the | |
716 | * caller could simply use it to store a valid file descriptor for instance | |
717 | * passed over a Unix socket and call this to cleanup but still without a valid | |
718 | * ops pointer. | |
719 | * | |
720 | * Return the close returned value. On error, a negative value is usually | |
721 | * returned back from close(2). | |
00e2e675 | 722 | */ |
6151a90f | 723 | int relayd_close(struct lttcomm_relayd_sock *rsock) |
00e2e675 | 724 | { |
ffe60014 DG |
725 | int ret; |
726 | ||
00e2e675 | 727 | /* Code flow error. Safety net. */ |
6151a90f | 728 | assert(rsock); |
00e2e675 | 729 | |
ffe60014 | 730 | /* An invalid fd is fine, return success. */ |
6151a90f | 731 | if (rsock->sock.fd < 0) { |
ffe60014 DG |
732 | ret = 0; |
733 | goto end; | |
734 | } | |
735 | ||
6151a90f | 736 | DBG3("Relayd closing socket %d", rsock->sock.fd); |
00e2e675 | 737 | |
6151a90f JD |
738 | if (rsock->sock.ops) { |
739 | ret = rsock->sock.ops->close(&rsock->sock); | |
ffe60014 DG |
740 | } else { |
741 | /* Default call if no specific ops found. */ | |
6151a90f | 742 | ret = close(rsock->sock.fd); |
ffe60014 DG |
743 | if (ret < 0) { |
744 | PERROR("relayd_close default close"); | |
745 | } | |
746 | } | |
f96e4545 | 747 | rsock->sock.fd = -1; |
ffe60014 DG |
748 | |
749 | end: | |
750 | return ret; | |
00e2e675 DG |
751 | } |
752 | ||
753 | /* | |
754 | * Send data header structure to the relayd. | |
755 | */ | |
6151a90f | 756 | int relayd_send_data_hdr(struct lttcomm_relayd_sock *rsock, |
00e2e675 DG |
757 | struct lttcomm_relayd_data_hdr *hdr, size_t size) |
758 | { | |
759 | int ret; | |
760 | ||
761 | /* Code flow error. Safety net. */ | |
6151a90f | 762 | assert(rsock); |
00e2e675 DG |
763 | assert(hdr); |
764 | ||
f96e4545 MD |
765 | if (rsock->sock.fd < 0) { |
766 | return -ECONNRESET; | |
767 | } | |
768 | ||
8fd623e0 | 769 | DBG3("Relayd sending data header of size %zu", size); |
00e2e675 DG |
770 | |
771 | /* Again, safety net */ | |
772 | if (size == 0) { | |
773 | size = sizeof(struct lttcomm_relayd_data_hdr); | |
774 | } | |
775 | ||
776 | /* Only send data header. */ | |
6151a90f | 777 | ret = rsock->sock.ops->sendmsg(&rsock->sock, hdr, size, 0); |
00e2e675 | 778 | if (ret < 0) { |
8994307f | 779 | ret = -errno; |
00e2e675 DG |
780 | goto error; |
781 | } | |
782 | ||
783 | /* | |
784 | * The data MUST be sent right after that command for the receive on the | |
785 | * other end to match the size in the header. | |
786 | */ | |
787 | ||
788 | error: | |
789 | return ret; | |
790 | } | |
173af62f DG |
791 | |
792 | /* | |
793 | * Send close stream command to the relayd. | |
794 | */ | |
6151a90f | 795 | int relayd_send_close_stream(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
173af62f DG |
796 | uint64_t last_net_seq_num) |
797 | { | |
798 | int ret; | |
799 | struct lttcomm_relayd_close_stream msg; | |
800 | struct lttcomm_relayd_generic_reply reply; | |
801 | ||
802 | /* Code flow error. Safety net. */ | |
6151a90f | 803 | assert(rsock); |
173af62f | 804 | |
77c7c900 | 805 | DBG("Relayd closing stream id %" PRIu64, stream_id); |
173af62f | 806 | |
53efb85a | 807 | memset(&msg, 0, sizeof(msg)); |
173af62f DG |
808 | msg.stream_id = htobe64(stream_id); |
809 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
810 | ||
811 | /* Send command */ | |
6151a90f | 812 | ret = send_command(rsock, RELAYD_CLOSE_STREAM, (void *) &msg, sizeof(msg), 0); |
173af62f DG |
813 | if (ret < 0) { |
814 | goto error; | |
815 | } | |
816 | ||
20275fe8 | 817 | /* Receive response */ |
6151a90f | 818 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
173af62f DG |
819 | if (ret < 0) { |
820 | goto error; | |
821 | } | |
822 | ||
823 | reply.ret_code = be32toh(reply.ret_code); | |
824 | ||
825 | /* Return session id or negative ret code. */ | |
f73fabfd | 826 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
827 | ret = -1; |
828 | ERR("Relayd close stream replied error %d", reply.ret_code); | |
173af62f DG |
829 | } else { |
830 | /* Success */ | |
831 | ret = 0; | |
832 | } | |
833 | ||
77c7c900 | 834 | DBG("Relayd close stream id %" PRIu64 " successfully", stream_id); |
173af62f DG |
835 | |
836 | error: | |
837 | return ret; | |
838 | } | |
c8f59ee5 DG |
839 | |
840 | /* | |
841 | * Check for data availability for a given stream id. | |
842 | * | |
6d805429 | 843 | * Return 0 if NOT pending, 1 if so and a negative value on error. |
c8f59ee5 | 844 | */ |
6151a90f | 845 | int relayd_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
c8f59ee5 DG |
846 | uint64_t last_net_seq_num) |
847 | { | |
848 | int ret; | |
6d805429 | 849 | struct lttcomm_relayd_data_pending msg; |
c8f59ee5 DG |
850 | struct lttcomm_relayd_generic_reply reply; |
851 | ||
852 | /* Code flow error. Safety net. */ | |
6151a90f | 853 | assert(rsock); |
c8f59ee5 | 854 | |
6d805429 | 855 | DBG("Relayd data pending for stream id %" PRIu64, stream_id); |
c8f59ee5 | 856 | |
53efb85a | 857 | memset(&msg, 0, sizeof(msg)); |
c8f59ee5 DG |
858 | msg.stream_id = htobe64(stream_id); |
859 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
860 | ||
861 | /* Send command */ | |
6151a90f | 862 | ret = send_command(rsock, RELAYD_DATA_PENDING, (void *) &msg, |
c8f59ee5 DG |
863 | sizeof(msg), 0); |
864 | if (ret < 0) { | |
865 | goto error; | |
866 | } | |
867 | ||
20275fe8 | 868 | /* Receive response */ |
6151a90f | 869 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
870 | if (ret < 0) { |
871 | goto error; | |
872 | } | |
873 | ||
874 | reply.ret_code = be32toh(reply.ret_code); | |
875 | ||
876 | /* Return session id or negative ret code. */ | |
877 | if (reply.ret_code >= LTTNG_OK) { | |
bb63afd9 | 878 | ERR("Relayd data pending replied error %d", reply.ret_code); |
c8f59ee5 DG |
879 | } |
880 | ||
881 | /* At this point, the ret code is either 1 or 0 */ | |
882 | ret = reply.ret_code; | |
883 | ||
6d805429 | 884 | DBG("Relayd data is %s pending for stream id %" PRIu64, |
9dd26bb9 | 885 | ret == 1 ? "" : "NOT", stream_id); |
c8f59ee5 DG |
886 | |
887 | error: | |
888 | return ret; | |
889 | } | |
890 | ||
891 | /* | |
892 | * Check on the relayd side for a quiescent state on the control socket. | |
893 | */ | |
6151a90f | 894 | int relayd_quiescent_control(struct lttcomm_relayd_sock *rsock, |
ad7051c0 | 895 | uint64_t metadata_stream_id) |
c8f59ee5 DG |
896 | { |
897 | int ret; | |
ad7051c0 | 898 | struct lttcomm_relayd_quiescent_control msg; |
c8f59ee5 DG |
899 | struct lttcomm_relayd_generic_reply reply; |
900 | ||
901 | /* Code flow error. Safety net. */ | |
6151a90f | 902 | assert(rsock); |
c8f59ee5 DG |
903 | |
904 | DBG("Relayd checking quiescent control state"); | |
905 | ||
53efb85a | 906 | memset(&msg, 0, sizeof(msg)); |
ad7051c0 DG |
907 | msg.stream_id = htobe64(metadata_stream_id); |
908 | ||
c8f59ee5 | 909 | /* Send command */ |
6151a90f | 910 | ret = send_command(rsock, RELAYD_QUIESCENT_CONTROL, &msg, sizeof(msg), 0); |
c8f59ee5 DG |
911 | if (ret < 0) { |
912 | goto error; | |
913 | } | |
914 | ||
20275fe8 | 915 | /* Receive response */ |
6151a90f | 916 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
917 | if (ret < 0) { |
918 | goto error; | |
919 | } | |
920 | ||
921 | reply.ret_code = be32toh(reply.ret_code); | |
922 | ||
923 | /* Return session id or negative ret code. */ | |
924 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
925 | ret = -1; |
926 | ERR("Relayd quiescent control replied error %d", reply.ret_code); | |
c8f59ee5 DG |
927 | goto error; |
928 | } | |
929 | ||
930 | /* Control socket is quiescent */ | |
6d805429 | 931 | return 0; |
c8f59ee5 DG |
932 | |
933 | error: | |
934 | return ret; | |
935 | } | |
f7079f67 DG |
936 | |
937 | /* | |
938 | * Begin a data pending command for a specific session id. | |
939 | */ | |
6151a90f | 940 | int relayd_begin_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id) |
f7079f67 DG |
941 | { |
942 | int ret; | |
943 | struct lttcomm_relayd_begin_data_pending msg; | |
944 | struct lttcomm_relayd_generic_reply reply; | |
945 | ||
946 | /* Code flow error. Safety net. */ | |
6151a90f | 947 | assert(rsock); |
f7079f67 DG |
948 | |
949 | DBG("Relayd begin data pending"); | |
950 | ||
53efb85a | 951 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
952 | msg.session_id = htobe64(id); |
953 | ||
954 | /* Send command */ | |
6151a90f | 955 | ret = send_command(rsock, RELAYD_BEGIN_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
956 | if (ret < 0) { |
957 | goto error; | |
958 | } | |
959 | ||
20275fe8 | 960 | /* Receive response */ |
6151a90f | 961 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
962 | if (ret < 0) { |
963 | goto error; | |
964 | } | |
965 | ||
966 | reply.ret_code = be32toh(reply.ret_code); | |
967 | ||
968 | /* Return session id or negative ret code. */ | |
969 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
970 | ret = -1; |
971 | ERR("Relayd begin data pending replied error %d", reply.ret_code); | |
f7079f67 DG |
972 | goto error; |
973 | } | |
974 | ||
975 | return 0; | |
976 | ||
977 | error: | |
978 | return ret; | |
979 | } | |
980 | ||
981 | /* | |
982 | * End a data pending command for a specific session id. | |
983 | * | |
984 | * Return 0 on success and set is_data_inflight to 0 if no data is being | |
985 | * streamed or 1 if it is the case. | |
986 | */ | |
6151a90f | 987 | int relayd_end_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id, |
f7079f67 DG |
988 | unsigned int *is_data_inflight) |
989 | { | |
af6c30b5 | 990 | int ret, recv_ret; |
f7079f67 DG |
991 | struct lttcomm_relayd_end_data_pending msg; |
992 | struct lttcomm_relayd_generic_reply reply; | |
993 | ||
994 | /* Code flow error. Safety net. */ | |
6151a90f | 995 | assert(rsock); |
f7079f67 DG |
996 | |
997 | DBG("Relayd end data pending"); | |
998 | ||
53efb85a | 999 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
1000 | msg.session_id = htobe64(id); |
1001 | ||
1002 | /* Send command */ | |
6151a90f | 1003 | ret = send_command(rsock, RELAYD_END_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
1004 | if (ret < 0) { |
1005 | goto error; | |
1006 | } | |
1007 | ||
20275fe8 | 1008 | /* Receive response */ |
6151a90f | 1009 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
1010 | if (ret < 0) { |
1011 | goto error; | |
1012 | } | |
1013 | ||
af6c30b5 DG |
1014 | recv_ret = be32toh(reply.ret_code); |
1015 | if (recv_ret < 0) { | |
1016 | ret = recv_ret; | |
f7079f67 DG |
1017 | goto error; |
1018 | } | |
1019 | ||
af6c30b5 | 1020 | *is_data_inflight = recv_ret; |
f7079f67 | 1021 | |
af6c30b5 | 1022 | DBG("Relayd end data pending is data inflight: %d", recv_ret); |
f7079f67 DG |
1023 | |
1024 | return 0; | |
1025 | ||
1026 | error: | |
1027 | return ret; | |
1028 | } | |
1c20f0e2 JD |
1029 | |
1030 | /* | |
1031 | * Send index to the relayd. | |
1032 | */ | |
1033 | int relayd_send_index(struct lttcomm_relayd_sock *rsock, | |
50adc264 | 1034 | struct ctf_packet_index *index, uint64_t relay_stream_id, |
1c20f0e2 JD |
1035 | uint64_t net_seq_num) |
1036 | { | |
1037 | int ret; | |
1038 | struct lttcomm_relayd_index msg; | |
1039 | struct lttcomm_relayd_generic_reply reply; | |
1040 | ||
1041 | /* Code flow error. Safety net. */ | |
1042 | assert(rsock); | |
1043 | ||
1044 | if (rsock->minor < 4) { | |
1045 | DBG("Not sending indexes before protocol 2.4"); | |
1046 | ret = 0; | |
1047 | goto error; | |
1048 | } | |
1049 | ||
1050 | DBG("Relayd sending index for stream ID %" PRIu64, relay_stream_id); | |
1051 | ||
53efb85a | 1052 | memset(&msg, 0, sizeof(msg)); |
1c20f0e2 JD |
1053 | msg.relay_stream_id = htobe64(relay_stream_id); |
1054 | msg.net_seq_num = htobe64(net_seq_num); | |
1055 | ||
1056 | /* The index is already in big endian. */ | |
1057 | msg.packet_size = index->packet_size; | |
1058 | msg.content_size = index->content_size; | |
1059 | msg.timestamp_begin = index->timestamp_begin; | |
1060 | msg.timestamp_end = index->timestamp_end; | |
1061 | msg.events_discarded = index->events_discarded; | |
1062 | msg.stream_id = index->stream_id; | |
1063 | ||
234cd636 JD |
1064 | if (rsock->minor >= 8) { |
1065 | msg.stream_instance_id = index->stream_instance_id; | |
1066 | msg.packet_seq_num = index->packet_seq_num; | |
1067 | } | |
1068 | ||
1c20f0e2 | 1069 | /* Send command */ |
f8f3885c MD |
1070 | ret = send_command(rsock, RELAYD_SEND_INDEX, &msg, |
1071 | lttcomm_relayd_index_len(lttng_to_index_major(rsock->major, | |
1072 | rsock->minor), | |
1073 | lttng_to_index_minor(rsock->major, rsock->minor)), | |
1074 | 0); | |
1c20f0e2 JD |
1075 | if (ret < 0) { |
1076 | goto error; | |
1077 | } | |
1078 | ||
1079 | /* Receive response */ | |
1080 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1081 | if (ret < 0) { | |
1082 | goto error; | |
1083 | } | |
1084 | ||
1085 | reply.ret_code = be32toh(reply.ret_code); | |
1086 | ||
1087 | /* Return session id or negative ret code. */ | |
1088 | if (reply.ret_code != LTTNG_OK) { | |
1089 | ret = -1; | |
1090 | ERR("Relayd send index replied error %d", reply.ret_code); | |
1091 | } else { | |
1092 | /* Success */ | |
1093 | ret = 0; | |
1094 | } | |
1095 | ||
1096 | error: | |
1097 | return ret; | |
1098 | } | |
93ec662e JD |
1099 | |
1100 | /* | |
1101 | * Ask the relay to reset the metadata trace file (regeneration). | |
1102 | */ | |
1103 | int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, | |
1104 | uint64_t stream_id, uint64_t version) | |
1105 | { | |
1106 | int ret; | |
1107 | struct lttcomm_relayd_reset_metadata msg; | |
1108 | struct lttcomm_relayd_generic_reply reply; | |
1109 | ||
1110 | /* Code flow error. Safety net. */ | |
1111 | assert(rsock); | |
1112 | ||
1113 | /* Should have been prevented by the sessiond. */ | |
1114 | if (rsock->minor < 8) { | |
1115 | ERR("Metadata regeneration unsupported before 2.8"); | |
1116 | ret = -1; | |
1117 | goto error; | |
1118 | } | |
1119 | ||
1120 | DBG("Relayd reset metadata stream id %" PRIu64, stream_id); | |
1121 | ||
1122 | memset(&msg, 0, sizeof(msg)); | |
1123 | msg.stream_id = htobe64(stream_id); | |
1124 | msg.version = htobe64(version); | |
1125 | ||
1126 | /* Send command */ | |
1127 | ret = send_command(rsock, RELAYD_RESET_METADATA, (void *) &msg, sizeof(msg), 0); | |
1128 | if (ret < 0) { | |
1129 | goto error; | |
1130 | } | |
1131 | ||
1132 | /* Receive response */ | |
1133 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1134 | if (ret < 0) { | |
1135 | goto error; | |
1136 | } | |
1137 | ||
1138 | reply.ret_code = be32toh(reply.ret_code); | |
1139 | ||
1140 | /* Return session id or negative ret code. */ | |
1141 | if (reply.ret_code != LTTNG_OK) { | |
1142 | ret = -1; | |
1143 | ERR("Relayd reset metadata replied error %d", reply.ret_code); | |
1144 | } else { | |
1145 | /* Success */ | |
1146 | ret = 0; | |
1147 | } | |
1148 | ||
1149 | DBG("Relayd reset metadata stream id %" PRIu64 " successfully", stream_id); | |
1150 | ||
1151 | error: | |
1152 | return ret; | |
1153 | } | |
a1ae2ea5 | 1154 | |
c35f9726 | 1155 | int relayd_rotate_streams(struct lttcomm_relayd_sock *sock, |
ebb29c10 | 1156 | unsigned int stream_count, const uint64_t *new_chunk_id, |
c35f9726 | 1157 | const struct relayd_stream_rotation_position *positions) |
d73bf3d7 JD |
1158 | { |
1159 | int ret; | |
c35f9726 JG |
1160 | unsigned int i; |
1161 | struct lttng_dynamic_buffer payload; | |
1162 | struct lttcomm_relayd_generic_reply reply = {}; | |
1163 | const struct lttcomm_relayd_rotate_streams msg = { | |
1164 | .stream_count = htobe32((uint32_t) stream_count), | |
1165 | .new_chunk_id = (typeof(msg.new_chunk_id)) { | |
1166 | .is_set = !!new_chunk_id, | |
1167 | .value = htobe64(new_chunk_id ? *new_chunk_id : 0), | |
1168 | }, | |
1169 | }; | |
1170 | char new_chunk_id_buf[MAX_INT_DEC_LEN(*new_chunk_id)] = {}; | |
1171 | const char *new_chunk_id_str; | |
d73bf3d7 | 1172 | |
070b6a86 MD |
1173 | if (!relayd_supports_chunks(sock)) { |
1174 | DBG("Refusing to rotate remote streams: relayd does not support chunks"); | |
1175 | return 0; | |
1176 | } | |
1177 | ||
c35f9726 | 1178 | lttng_dynamic_buffer_init(&payload); |
d73bf3d7 | 1179 | |
c35f9726 JG |
1180 | /* Code flow error. Safety net. */ |
1181 | assert(sock); | |
d73bf3d7 | 1182 | |
c35f9726 JG |
1183 | if (new_chunk_id) { |
1184 | ret = snprintf(new_chunk_id_buf, sizeof(new_chunk_id_buf), | |
1185 | "%" PRIu64, *new_chunk_id); | |
1186 | if (ret == -1 || ret >= sizeof(new_chunk_id_buf)) { | |
1187 | new_chunk_id_str = "formatting error"; | |
1188 | } else { | |
1189 | new_chunk_id_str = new_chunk_id_buf; | |
1190 | } | |
1191 | } else { | |
1192 | new_chunk_id_str = "none"; | |
d73bf3d7 JD |
1193 | } |
1194 | ||
c35f9726 JG |
1195 | DBG("Preparing \"rotate streams\" command payload: new_chunk_id = %s, stream_count = %u", |
1196 | new_chunk_id_str, stream_count); | |
d73bf3d7 | 1197 | |
c35f9726 JG |
1198 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); |
1199 | if (ret) { | |
1200 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
d73bf3d7 JD |
1201 | goto error; |
1202 | } | |
1203 | ||
c35f9726 JG |
1204 | for (i = 0; i < stream_count; i++) { |
1205 | const struct relayd_stream_rotation_position *position = | |
1206 | &positions[i]; | |
1207 | const struct lttcomm_relayd_stream_rotation_position comm_position = { | |
1208 | .stream_id = htobe64(position->stream_id), | |
1209 | .rotate_at_seq_num = htobe64( | |
1210 | position->rotate_at_seq_num), | |
1211 | }; | |
1212 | ||
1213 | DBG("Rotate stream %" PRIu64 "at sequence number %" PRIu64, | |
1214 | position->stream_id, | |
1215 | position->rotate_at_seq_num); | |
1216 | ret = lttng_dynamic_buffer_append(&payload, &comm_position, | |
1217 | sizeof(comm_position)); | |
1218 | if (ret) { | |
1219 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
1220 | goto error; | |
1221 | } | |
1222 | } | |
d73bf3d7 JD |
1223 | |
1224 | /* Send command. */ | |
c35f9726 JG |
1225 | ret = send_command(sock, RELAYD_ROTATE_STREAMS, payload.data, |
1226 | payload.size, 0); | |
d73bf3d7 | 1227 | if (ret < 0) { |
c35f9726 | 1228 | ERR("Failed to send \"rotate stream\" command"); |
d73bf3d7 JD |
1229 | goto error; |
1230 | } | |
1231 | ||
1232 | /* Receive response. */ | |
c35f9726 | 1233 | ret = recv_reply(sock, &reply, sizeof(reply)); |
d73bf3d7 | 1234 | if (ret < 0) { |
c35f9726 | 1235 | ERR("Failed to receive \"rotate streams\" command reply"); |
d73bf3d7 JD |
1236 | goto error; |
1237 | } | |
1238 | ||
1239 | reply.ret_code = be32toh(reply.ret_code); | |
d73bf3d7 JD |
1240 | if (reply.ret_code != LTTNG_OK) { |
1241 | ret = -1; | |
c35f9726 | 1242 | ERR("Relayd rotate streams replied error %d", reply.ret_code); |
d73bf3d7 JD |
1243 | } else { |
1244 | /* Success. */ | |
1245 | ret = 0; | |
c35f9726 | 1246 | DBG("Relayd rotated streams successfully"); |
d73bf3d7 JD |
1247 | } |
1248 | ||
1249 | error: | |
c35f9726 | 1250 | lttng_dynamic_buffer_reset(&payload); |
d73bf3d7 JD |
1251 | return ret; |
1252 | } | |
e5add6d0 JG |
1253 | |
1254 | int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock, | |
1255 | struct lttng_trace_chunk *chunk) | |
1256 | { | |
1257 | int ret = 0; | |
1258 | enum lttng_trace_chunk_status status; | |
1259 | struct lttcomm_relayd_create_trace_chunk msg = {}; | |
1260 | struct lttcomm_relayd_generic_reply reply = {}; | |
1261 | struct lttng_dynamic_buffer payload; | |
1262 | uint64_t chunk_id; | |
1263 | time_t creation_timestamp; | |
1264 | const char *chunk_name; | |
1265 | size_t chunk_name_length; | |
913a542b | 1266 | bool overridden_name; |
e5add6d0 JG |
1267 | |
1268 | lttng_dynamic_buffer_init(&payload); | |
1269 | ||
070b6a86 MD |
1270 | if (!relayd_supports_chunks(sock)) { |
1271 | DBG("Refusing to create remote trace chunk: relayd does not support chunks"); | |
1272 | goto end; | |
1273 | } | |
1274 | ||
e5add6d0 JG |
1275 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1276 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1277 | ret = -1; | |
1278 | goto end; | |
1279 | } | |
1280 | ||
1281 | status = lttng_trace_chunk_get_creation_timestamp( | |
1282 | chunk, &creation_timestamp); | |
1283 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1284 | ret = -1; | |
1285 | goto end; | |
1286 | } | |
1287 | ||
1288 | status = lttng_trace_chunk_get_name( | |
913a542b | 1289 | chunk, &chunk_name, &overridden_name); |
e5add6d0 JG |
1290 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK && |
1291 | status != LTTNG_TRACE_CHUNK_STATUS_NONE) { | |
1292 | ret = -1; | |
1293 | goto end; | |
1294 | } | |
1295 | ||
913a542b | 1296 | chunk_name_length = overridden_name ? (strlen(chunk_name) + 1) : 0; |
e5add6d0 JG |
1297 | msg = (typeof(msg)){ |
1298 | .chunk_id = htobe64(chunk_id), | |
1299 | .creation_timestamp = htobe64((uint64_t) creation_timestamp), | |
1300 | .override_name_length = htobe32((uint32_t) chunk_name_length), | |
1301 | }; | |
1302 | ||
1303 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); | |
1304 | if (ret) { | |
1305 | goto end; | |
1306 | } | |
1307 | if (chunk_name_length) { | |
1308 | ret = lttng_dynamic_buffer_append( | |
1309 | &payload, chunk_name, chunk_name_length); | |
1310 | if (ret) { | |
1311 | goto end; | |
1312 | } | |
1313 | } | |
1314 | ||
bbc4768c JG |
1315 | ret = send_command(sock, RELAYD_CREATE_TRACE_CHUNK, payload.data, |
1316 | payload.size, 0); | |
e5add6d0 JG |
1317 | if (ret < 0) { |
1318 | ERR("Failed to send trace chunk creation command to relay daemon"); | |
1319 | goto end; | |
1320 | } | |
1321 | ||
1322 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1323 | if (ret < 0) { | |
1324 | ERR("Failed to receive relay daemon trace chunk creation command reply"); | |
1325 | goto end; | |
1326 | } | |
1327 | ||
1328 | reply.ret_code = be32toh(reply.ret_code); | |
1329 | if (reply.ret_code != LTTNG_OK) { | |
1330 | ret = -1; | |
1331 | ERR("Relayd trace chunk create replied error %d", | |
1332 | reply.ret_code); | |
1333 | } else { | |
1334 | ret = 0; | |
1335 | DBG("Relayd successfully created trace chunk: chunk_id = %" PRIu64, | |
1336 | chunk_id); | |
1337 | } | |
1338 | ||
1339 | end: | |
1340 | lttng_dynamic_buffer_reset(&payload); | |
1341 | return ret; | |
1342 | } | |
bbc4768c JG |
1343 | |
1344 | int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock, | |
1345 | struct lttng_trace_chunk *chunk) | |
1346 | { | |
1347 | int ret = 0; | |
1348 | enum lttng_trace_chunk_status status; | |
1349 | struct lttcomm_relayd_close_trace_chunk msg = {}; | |
1350 | struct lttcomm_relayd_generic_reply reply = {}; | |
1351 | uint64_t chunk_id; | |
1352 | time_t close_timestamp; | |
1353 | LTTNG_OPTIONAL(enum lttng_trace_chunk_command_type) close_command = {}; | |
1354 | ||
070b6a86 MD |
1355 | if (!relayd_supports_chunks(sock)) { |
1356 | DBG("Refusing to close remote trace chunk: relayd does not support chunks"); | |
1357 | goto end; | |
1358 | } | |
1359 | ||
bbc4768c JG |
1360 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1361 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1362 | ERR("Failed to get trace chunk id"); | |
1363 | ret = -1; | |
1364 | goto end; | |
1365 | } | |
1366 | ||
1367 | status = lttng_trace_chunk_get_close_timestamp(chunk, &close_timestamp); | |
1368 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1369 | ERR("Failed to get trace chunk close timestamp"); | |
1370 | ret = -1; | |
1371 | goto end; | |
1372 | } | |
1373 | ||
1374 | status = lttng_trace_chunk_get_close_command(chunk, | |
1375 | &close_command.value); | |
1376 | switch (status) { | |
1377 | case LTTNG_TRACE_CHUNK_STATUS_OK: | |
1378 | close_command.is_set = 1; | |
1379 | break; | |
1380 | case LTTNG_TRACE_CHUNK_STATUS_NONE: | |
1381 | break; | |
1382 | default: | |
1383 | ERR("Failed to get trace chunk close command"); | |
1384 | ret = -1; | |
1385 | goto end; | |
1386 | } | |
1387 | ||
1388 | msg = (typeof(msg)){ | |
1389 | .chunk_id = htobe64(chunk_id), | |
1390 | .close_timestamp = htobe64((uint64_t) close_timestamp), | |
1391 | .close_command = { | |
1392 | .value = htobe32((uint32_t) close_command.value), | |
1393 | .is_set = close_command.is_set, | |
1394 | }, | |
1395 | }; | |
1396 | ||
1397 | ret = send_command(sock, RELAYD_CLOSE_TRACE_CHUNK, &msg, sizeof(msg), | |
1398 | 0); | |
1399 | if (ret < 0) { | |
1400 | ERR("Failed to send trace chunk close command to relay daemon"); | |
1401 | goto end; | |
1402 | } | |
1403 | ||
1404 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1405 | if (ret < 0) { | |
1406 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1407 | goto end; | |
1408 | } | |
1409 | ||
1410 | reply.ret_code = be32toh(reply.ret_code); | |
1411 | if (reply.ret_code != LTTNG_OK) { | |
1412 | ret = -1; | |
1413 | ERR("Relayd trace chunk close replied error %d", | |
1414 | reply.ret_code); | |
1415 | } else { | |
1416 | ret = 0; | |
1417 | DBG("Relayd successfully closed trace chunk: chunk_id = %" PRIu64, | |
1418 | chunk_id); | |
1419 | } | |
1420 | end: | |
1421 | return ret; | |
1422 | } | |
c35f9726 JG |
1423 | |
1424 | int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock, | |
1425 | uint64_t chunk_id, bool *chunk_exists) | |
1426 | { | |
1427 | int ret = 0; | |
1428 | struct lttcomm_relayd_trace_chunk_exists msg = {}; | |
1429 | struct lttcomm_relayd_trace_chunk_exists_reply reply = {}; | |
1430 | ||
070b6a86 MD |
1431 | if (!relayd_supports_chunks(sock)) { |
1432 | DBG("Refusing to check for trace chunk existence: relayd does not support chunks"); | |
1433 | goto end; | |
1434 | } | |
1435 | ||
c35f9726 JG |
1436 | msg = (typeof(msg)){ |
1437 | .chunk_id = htobe64(chunk_id), | |
1438 | }; | |
1439 | ||
1440 | ret = send_command(sock, RELAYD_TRACE_CHUNK_EXISTS, &msg, sizeof(msg), | |
1441 | 0); | |
1442 | if (ret < 0) { | |
1443 | ERR("Failed to send trace chunk exists command to relay daemon"); | |
1444 | goto end; | |
1445 | } | |
1446 | ||
1447 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1448 | if (ret < 0) { | |
1449 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1450 | goto end; | |
1451 | } | |
1452 | ||
1453 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1454 | if (reply.generic.ret_code != LTTNG_OK) { | |
1455 | ret = -1; | |
1456 | ERR("Relayd trace chunk close replied error %d", | |
1457 | reply.generic.ret_code); | |
1458 | } else { | |
1459 | ret = 0; | |
1460 | DBG("Relayd successfully checked trace chunk existence: chunk_id = %" PRIu64 | |
1461 | ", exists = %s", chunk_id, | |
1462 | reply.trace_chunk_exists ? "true" : "false"); | |
1463 | *chunk_exists = !!reply.trace_chunk_exists; | |
1464 | } | |
1465 | end: | |
1466 | return ret; | |
1467 | } |