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, | |
ecd1a12f MD |
146 | time_t creation_time, bool session_name_contains_creation_time, |
147 | struct lttcomm_relayd_create_session_reply_2_11 *reply, | |
148 | char *output_path) | |
f86f6389 JR |
149 | { |
150 | int ret; | |
151 | struct lttcomm_relayd_create_session_2_11 *msg = NULL; | |
152 | size_t session_name_len; | |
153 | size_t hostname_len; | |
6fa5fe7c | 154 | size_t base_path_len; |
f86f6389 | 155 | size_t msg_length; |
6fa5fe7c | 156 | char *dst; |
f86f6389 | 157 | |
46ef2188 MD |
158 | if (!base_path) { |
159 | base_path = ""; | |
160 | } | |
161 | /* The three names are sent with a '\0' delimiter between them. */ | |
f86f6389 JR |
162 | session_name_len = strlen(session_name) + 1; |
163 | hostname_len = strlen(hostname) + 1; | |
17e736a5 | 164 | base_path_len = strlen(base_path) + 1; |
f86f6389 | 165 | |
6fa5fe7c | 166 | msg_length = sizeof(*msg) + session_name_len + hostname_len + base_path_len; |
f86f6389 JR |
167 | msg = zmalloc(msg_length); |
168 | if (!msg) { | |
169 | PERROR("zmalloc create_session_2_11 command message"); | |
170 | ret = -1; | |
171 | goto error; | |
172 | } | |
173 | ||
174 | assert(session_name_len <= UINT32_MAX); | |
175 | msg->session_name_len = htobe32(session_name_len); | |
176 | ||
177 | assert(hostname_len <= UINT32_MAX); | |
178 | msg->hostname_len = htobe32(hostname_len); | |
179 | ||
6fa5fe7c MD |
180 | assert(base_path_len <= UINT32_MAX); |
181 | msg->base_path_len = htobe32(base_path_len); | |
182 | ||
183 | dst = msg->names; | |
184 | if (lttng_strncpy(dst, session_name, session_name_len)) { | |
185 | ret = -1; | |
186 | goto error; | |
187 | } | |
188 | dst += session_name_len; | |
189 | if (lttng_strncpy(dst, hostname, hostname_len)) { | |
f86f6389 JR |
190 | ret = -1; |
191 | goto error; | |
192 | } | |
6fa5fe7c | 193 | dst += hostname_len; |
36f9f13b | 194 | if (lttng_strncpy(dst, base_path, base_path_len)) { |
f86f6389 JR |
195 | ret = -1; |
196 | goto error; | |
197 | } | |
198 | ||
199 | msg->live_timer = htobe32(session_live_timer); | |
200 | msg->snapshot = !!snapshot; | |
201 | ||
658f12fa JG |
202 | lttng_uuid_copy(msg->sessiond_uuid, sessiond_uuid); |
203 | msg->session_id = htobe64(sessiond_session_id); | |
46ef2188 | 204 | msg->session_name_contains_creation_time = session_name_contains_creation_time; |
f39bd140 JG |
205 | if (current_chunk_id) { |
206 | LTTNG_OPTIONAL_SET(&msg->current_chunk_id, | |
207 | htobe64(*current_chunk_id)); | |
208 | } | |
209 | ||
db1da059 JG |
210 | msg->creation_time = htobe64((uint64_t) creation_time); |
211 | ||
f86f6389 JR |
212 | /* Send command */ |
213 | ret = send_command(rsock, RELAYD_CREATE_SESSION, msg, msg_length, 0); | |
214 | if (ret < 0) { | |
215 | goto error; | |
216 | } | |
ecd1a12f MD |
217 | /* Receive response */ |
218 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
219 | if (ret < 0) { | |
220 | goto error; | |
221 | } | |
222 | reply->generic.session_id = be64toh(reply->generic.session_id); | |
223 | reply->generic.ret_code = be32toh(reply->generic.ret_code); | |
224 | reply->output_path_length = be32toh(reply->output_path_length); | |
225 | if (reply->output_path_length >= LTTNG_PATH_MAX) { | |
226 | ERR("Invalid session output path length in reply (%" PRIu32 " bytes) exceeds maximal allowed length (%d bytes)", | |
227 | reply->output_path_length, LTTNG_PATH_MAX); | |
228 | ret = -1; | |
229 | goto error; | |
230 | } | |
231 | ret = recv_reply(rsock, output_path, reply->output_path_length); | |
232 | if (ret < 0) { | |
233 | goto error; | |
234 | } | |
f86f6389 JR |
235 | error: |
236 | free(msg); | |
237 | return ret; | |
238 | } | |
239 | /* | |
240 | * From 2.4 to 2.10, RELAYD_CREATE_SESSION takes additional parameters to | |
d3e2ba59 JD |
241 | * support the live reading capability. |
242 | */ | |
243 | static int relayd_create_session_2_4(struct lttcomm_relayd_sock *rsock, | |
fb9a95c4 | 244 | const char *session_name, const char *hostname, |
ecd1a12f MD |
245 | int session_live_timer, unsigned int snapshot, |
246 | struct lttcomm_relayd_status_session *reply) | |
d3e2ba59 JD |
247 | { |
248 | int ret; | |
249 | struct lttcomm_relayd_create_session_2_4 msg; | |
250 | ||
3a13ffd5 MD |
251 | if (lttng_strncpy(msg.session_name, session_name, |
252 | sizeof(msg.session_name))) { | |
246777db MD |
253 | ret = -1; |
254 | goto error; | |
255 | } | |
3a13ffd5 | 256 | if (lttng_strncpy(msg.hostname, hostname, sizeof(msg.hostname))) { |
246777db MD |
257 | ret = -1; |
258 | goto error; | |
259 | } | |
d3e2ba59 | 260 | msg.live_timer = htobe32(session_live_timer); |
7d2f7452 | 261 | msg.snapshot = htobe32(snapshot); |
d3e2ba59 JD |
262 | |
263 | /* Send command */ | |
264 | ret = send_command(rsock, RELAYD_CREATE_SESSION, &msg, sizeof(msg), 0); | |
265 | if (ret < 0) { | |
266 | goto error; | |
267 | } | |
268 | ||
ecd1a12f MD |
269 | /* Receive response */ |
270 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
271 | if (ret < 0) { | |
272 | goto error; | |
273 | } | |
274 | reply->session_id = be64toh(reply->session_id); | |
275 | reply->ret_code = be32toh(reply->ret_code); | |
d3e2ba59 JD |
276 | error: |
277 | return ret; | |
278 | } | |
279 | ||
280 | /* | |
281 | * RELAYD_CREATE_SESSION from 2.1 to 2.3. | |
282 | */ | |
ecd1a12f MD |
283 | static int relayd_create_session_2_1(struct lttcomm_relayd_sock *rsock, |
284 | struct lttcomm_relayd_status_session *reply) | |
d3e2ba59 JD |
285 | { |
286 | int ret; | |
287 | ||
288 | /* Send command */ | |
289 | ret = send_command(rsock, RELAYD_CREATE_SESSION, NULL, 0, 0); | |
290 | if (ret < 0) { | |
291 | goto error; | |
292 | } | |
293 | ||
ecd1a12f MD |
294 | /* Receive response */ |
295 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
296 | if (ret < 0) { | |
297 | goto error; | |
298 | } | |
299 | reply->session_id = be64toh(reply->session_id); | |
300 | reply->ret_code = be32toh(reply->ret_code); | |
d3e2ba59 JD |
301 | error: |
302 | return ret; | |
303 | } | |
304 | ||
c5b6f4f0 DG |
305 | /* |
306 | * Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and | |
307 | * set session_id of the relayd if we have a successful reply from the relayd. | |
308 | * | |
20275fe8 DG |
309 | * On success, return 0 else a negative value which is either an errno error or |
310 | * a lttng error code from the relayd. | |
c5b6f4f0 | 311 | */ |
fb9a95c4 JG |
312 | int relayd_create_session(struct lttcomm_relayd_sock *rsock, |
313 | uint64_t *relayd_session_id, | |
314 | const char *session_name, const char *hostname, | |
6fa5fe7c | 315 | const char *base_path, int session_live_timer, |
658f12fa | 316 | unsigned int snapshot, uint64_t sessiond_session_id, |
f39bd140 | 317 | const lttng_uuid sessiond_uuid, |
db1da059 | 318 | const uint64_t *current_chunk_id, |
ecd1a12f MD |
319 | time_t creation_time, bool session_name_contains_creation_time, |
320 | char *output_path) | |
c5b6f4f0 DG |
321 | { |
322 | int ret; | |
ecd1a12f | 323 | struct lttcomm_relayd_create_session_reply_2_11 reply = {}; |
c5b6f4f0 | 324 | |
6151a90f | 325 | assert(rsock); |
658f12fa | 326 | assert(relayd_session_id); |
c5b6f4f0 DG |
327 | |
328 | DBG("Relayd create session"); | |
329 | ||
f86f6389 JR |
330 | if (rsock->minor < 4) { |
331 | /* From 2.1 to 2.3 */ | |
ecd1a12f | 332 | ret = relayd_create_session_2_1(rsock, &reply.generic); |
f86f6389 JR |
333 | } else if (rsock->minor >= 4 && rsock->minor < 11) { |
334 | /* From 2.4 to 2.10 */ | |
335 | ret = relayd_create_session_2_4(rsock, session_name, | |
ecd1a12f MD |
336 | hostname, session_live_timer, snapshot, |
337 | &reply.generic); | |
f86f6389 JR |
338 | } else { |
339 | /* From 2.11 to ... */ | |
340 | ret = relayd_create_session_2_11(rsock, session_name, | |
6fa5fe7c | 341 | hostname, base_path, session_live_timer, snapshot, |
f39bd140 | 342 | sessiond_session_id, sessiond_uuid, |
46ef2188 | 343 | current_chunk_id, creation_time, |
ecd1a12f MD |
344 | session_name_contains_creation_time, |
345 | &reply, output_path); | |
c5b6f4f0 DG |
346 | } |
347 | ||
c5b6f4f0 DG |
348 | if (ret < 0) { |
349 | goto error; | |
350 | } | |
351 | ||
c5b6f4f0 | 352 | /* Return session id or negative ret code. */ |
ecd1a12f | 353 | if (reply.generic.ret_code != LTTNG_OK) { |
bb63afd9 | 354 | ret = -1; |
ecd1a12f MD |
355 | ERR("Relayd create session replied error %d", |
356 | reply.generic.ret_code); | |
c5b6f4f0 DG |
357 | goto error; |
358 | } else { | |
359 | ret = 0; | |
ecd1a12f | 360 | *relayd_session_id = reply.generic.session_id; |
c5b6f4f0 DG |
361 | } |
362 | ||
ecd1a12f | 363 | DBG("Relayd session created with id %" PRIu64, reply.generic.session_id); |
c5b6f4f0 DG |
364 | |
365 | error: | |
366 | return ret; | |
367 | } | |
368 | ||
2f21a469 JR |
369 | static int relayd_add_stream_2_1(struct lttcomm_relayd_sock *rsock, |
370 | const char *channel_name, const char *pathname) | |
371 | { | |
372 | int ret; | |
373 | struct lttcomm_relayd_add_stream msg; | |
374 | ||
375 | memset(&msg, 0, sizeof(msg)); | |
376 | if (lttng_strncpy(msg.channel_name, channel_name, | |
377 | sizeof(msg.channel_name))) { | |
378 | ret = -1; | |
379 | goto error; | |
380 | } | |
381 | ||
382 | if (lttng_strncpy(msg.pathname, pathname, | |
383 | sizeof(msg.pathname))) { | |
384 | ret = -1; | |
385 | goto error; | |
386 | } | |
387 | ||
388 | /* Send command */ | |
389 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
390 | if (ret < 0) { | |
391 | ret = -1; | |
392 | goto error; | |
393 | } | |
394 | ret = 0; | |
395 | error: | |
396 | return ret; | |
397 | } | |
398 | ||
399 | static int relayd_add_stream_2_2(struct lttcomm_relayd_sock *rsock, | |
400 | const char *channel_name, const char *pathname, | |
401 | uint64_t tracefile_size, uint64_t tracefile_count) | |
402 | { | |
403 | int ret; | |
404 | struct lttcomm_relayd_add_stream_2_2 msg; | |
405 | ||
406 | memset(&msg, 0, sizeof(msg)); | |
407 | /* Compat with relayd 2.2 to 2.10 */ | |
408 | if (lttng_strncpy(msg.channel_name, channel_name, | |
409 | sizeof(msg.channel_name))) { | |
410 | ret = -1; | |
411 | goto error; | |
412 | } | |
413 | if (lttng_strncpy(msg.pathname, pathname, | |
414 | sizeof(msg.pathname))) { | |
415 | ret = -1; | |
416 | goto error; | |
417 | } | |
418 | msg.tracefile_size = htobe64(tracefile_size); | |
419 | msg.tracefile_count = htobe64(tracefile_count); | |
420 | ||
421 | /* Send command */ | |
422 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
423 | if (ret < 0) { | |
424 | goto error; | |
425 | } | |
426 | ret = 0; | |
427 | error: | |
428 | return ret; | |
429 | } | |
430 | ||
431 | static int relayd_add_stream_2_11(struct lttcomm_relayd_sock *rsock, | |
432 | const char *channel_name, const char *pathname, | |
b00e554e JG |
433 | uint64_t tracefile_size, uint64_t tracefile_count, |
434 | uint64_t trace_archive_id) | |
2f21a469 JR |
435 | { |
436 | int ret; | |
437 | struct lttcomm_relayd_add_stream_2_11 *msg = NULL; | |
438 | size_t channel_name_len; | |
439 | size_t pathname_len; | |
440 | size_t msg_length; | |
441 | ||
442 | /* The two names are sent with a '\0' delimiter between them. */ | |
443 | channel_name_len = strlen(channel_name) + 1; | |
444 | pathname_len = strlen(pathname) + 1; | |
445 | ||
446 | msg_length = sizeof(*msg) + channel_name_len + pathname_len; | |
447 | msg = zmalloc(msg_length); | |
448 | if (!msg) { | |
449 | PERROR("zmalloc add_stream_2_11 command message"); | |
450 | ret = -1; | |
451 | goto error; | |
452 | } | |
453 | ||
454 | assert(channel_name_len <= UINT32_MAX); | |
455 | msg->channel_name_len = htobe32(channel_name_len); | |
456 | ||
457 | assert(pathname_len <= UINT32_MAX); | |
458 | msg->pathname_len = htobe32(pathname_len); | |
459 | ||
460 | if (lttng_strncpy(msg->names, channel_name, channel_name_len)) { | |
461 | ret = -1; | |
462 | goto error; | |
463 | } | |
464 | if (lttng_strncpy(msg->names + channel_name_len, pathname, pathname_len)) { | |
465 | ret = -1; | |
466 | goto error; | |
467 | } | |
468 | ||
469 | msg->tracefile_size = htobe64(tracefile_size); | |
470 | msg->tracefile_count = htobe64(tracefile_count); | |
348a81dc | 471 | msg->trace_chunk_id = htobe64(trace_archive_id); |
2f21a469 JR |
472 | |
473 | /* Send command */ | |
474 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) msg, msg_length, 0); | |
475 | if (ret < 0) { | |
476 | goto error; | |
477 | } | |
478 | ret = 0; | |
479 | error: | |
480 | free(msg); | |
481 | return ret; | |
482 | } | |
483 | ||
00e2e675 DG |
484 | /* |
485 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
486 | * | |
070b6a86 MD |
487 | * Chunks are not supported by relayd prior to 2.11, but are used to |
488 | * internally between session daemon and consumer daemon to keep track | |
489 | * of the channel and stream output path. | |
490 | * | |
00e2e675 DG |
491 | * On success return 0 else return ret_code negative value. |
492 | */ | |
6151a90f | 493 | int relayd_add_stream(struct lttcomm_relayd_sock *rsock, const char *channel_name, |
5da88b0f | 494 | const char *domain_name, const char *_pathname, uint64_t *stream_id, |
0b50e4b3 | 495 | uint64_t tracefile_size, uint64_t tracefile_count, |
d2956687 | 496 | struct lttng_trace_chunk *trace_chunk) |
00e2e675 DG |
497 | { |
498 | int ret; | |
00e2e675 | 499 | struct lttcomm_relayd_status_stream reply; |
5da88b0f MD |
500 | char pathname[RELAYD_COMM_LTTNG_PATH_MAX]; |
501 | char *separator; | |
00e2e675 DG |
502 | |
503 | /* Code flow error. Safety net. */ | |
6151a90f | 504 | assert(rsock); |
00e2e675 | 505 | assert(channel_name); |
5da88b0f MD |
506 | assert(domain_name); |
507 | assert(_pathname); | |
070b6a86 | 508 | assert(trace_chunk); |
00e2e675 DG |
509 | |
510 | DBG("Relayd adding stream for channel name %s", channel_name); | |
511 | ||
5da88b0f MD |
512 | if (_pathname[0] == '\0') { |
513 | separator = ""; | |
514 | } else { | |
515 | separator = "/"; | |
516 | } | |
517 | ret = snprintf(pathname, RELAYD_COMM_LTTNG_PATH_MAX, "%s%s%s", | |
518 | domain_name, separator, _pathname); | |
519 | if (ret <= 0 || ret >= RELAYD_COMM_LTTNG_PATH_MAX) { | |
520 | ERR("stream path too long."); | |
521 | ret = -1; | |
522 | goto error; | |
523 | } | |
524 | ||
0f907de1 JD |
525 | /* Compat with relayd 2.1 */ |
526 | if (rsock->minor == 1) { | |
2f21a469 JR |
527 | /* For 2.1 */ |
528 | ret = relayd_add_stream_2_1(rsock, channel_name, pathname); | |
529 | ||
530 | } else if (rsock->minor > 1 && rsock->minor < 11) { | |
531 | /* From 2.2 to 2.10 */ | |
532 | ret = relayd_add_stream_2_2(rsock, channel_name, pathname, | |
533 | tracefile_size, tracefile_count); | |
0f907de1 | 534 | } else { |
d2956687 JG |
535 | enum lttng_trace_chunk_status chunk_status; |
536 | uint64_t chunk_id; | |
537 | ||
d2956687 JG |
538 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, |
539 | &chunk_id); | |
540 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
541 | ||
2f21a469 JR |
542 | /* From 2.11 to ...*/ |
543 | ret = relayd_add_stream_2_11(rsock, channel_name, pathname, | |
b00e554e | 544 | tracefile_size, tracefile_count, |
d2956687 | 545 | chunk_id); |
2f21a469 | 546 | } |
0f907de1 | 547 | |
2f21a469 JR |
548 | if (ret) { |
549 | ret = -1; | |
550 | goto error; | |
00e2e675 DG |
551 | } |
552 | ||
633d0084 | 553 | /* Waiting for reply */ |
6151a90f | 554 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
00e2e675 DG |
555 | if (ret < 0) { |
556 | goto error; | |
557 | } | |
558 | ||
559 | /* Back to host bytes order. */ | |
560 | reply.handle = be64toh(reply.handle); | |
561 | reply.ret_code = be32toh(reply.ret_code); | |
562 | ||
563 | /* Return session id or negative ret code. */ | |
f73fabfd | 564 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
565 | ret = -1; |
566 | ERR("Relayd add stream replied error %d", reply.ret_code); | |
00e2e675 DG |
567 | } else { |
568 | /* Success */ | |
569 | ret = 0; | |
570 | *stream_id = reply.handle; | |
571 | } | |
572 | ||
77c7c900 | 573 | DBG("Relayd stream added successfully with handle %" PRIu64, |
2f21a469 | 574 | reply.handle); |
00e2e675 DG |
575 | |
576 | error: | |
577 | return ret; | |
578 | } | |
579 | ||
a4baae1b JD |
580 | /* |
581 | * Inform the relay that all the streams for the current channel has been sent. | |
582 | * | |
583 | * On success return 0 else return ret_code negative value. | |
584 | */ | |
585 | int relayd_streams_sent(struct lttcomm_relayd_sock *rsock) | |
586 | { | |
587 | int ret; | |
588 | struct lttcomm_relayd_generic_reply reply; | |
589 | ||
590 | /* Code flow error. Safety net. */ | |
591 | assert(rsock); | |
592 | ||
593 | DBG("Relayd sending streams sent."); | |
594 | ||
595 | /* This feature was introduced in 2.4, ignore it for earlier versions. */ | |
596 | if (rsock->minor < 4) { | |
597 | ret = 0; | |
598 | goto end; | |
599 | } | |
600 | ||
601 | /* Send command */ | |
602 | ret = send_command(rsock, RELAYD_STREAMS_SENT, NULL, 0, 0); | |
603 | if (ret < 0) { | |
604 | goto error; | |
605 | } | |
606 | ||
607 | /* Waiting for reply */ | |
608 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
609 | if (ret < 0) { | |
610 | goto error; | |
611 | } | |
612 | ||
613 | /* Back to host bytes order. */ | |
614 | reply.ret_code = be32toh(reply.ret_code); | |
615 | ||
616 | /* Return session id or negative ret code. */ | |
617 | if (reply.ret_code != LTTNG_OK) { | |
618 | ret = -1; | |
619 | ERR("Relayd streams sent replied error %d", reply.ret_code); | |
620 | goto error; | |
621 | } else { | |
622 | /* Success */ | |
623 | ret = 0; | |
624 | } | |
625 | ||
626 | DBG("Relayd streams sent success"); | |
627 | ||
628 | error: | |
629 | end: | |
630 | return ret; | |
631 | } | |
632 | ||
00e2e675 DG |
633 | /* |
634 | * Check version numbers on the relayd. | |
d4519fa3 JD |
635 | * If major versions are compatible, we assign minor_to_use to the |
636 | * minor version of the procotol we are going to use for this session. | |
00e2e675 | 637 | * |
67d5aa28 JD |
638 | * Return 0 if the two daemons are compatible, LTTNG_ERR_RELAYD_VERSION_FAIL |
639 | * otherwise, or a negative value on network errors. | |
00e2e675 | 640 | */ |
6151a90f | 641 | int relayd_version_check(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
642 | { |
643 | int ret; | |
092b6259 | 644 | struct lttcomm_relayd_version msg; |
00e2e675 DG |
645 | |
646 | /* Code flow error. Safety net. */ | |
6151a90f | 647 | assert(rsock); |
00e2e675 | 648 | |
6151a90f JD |
649 | DBG("Relayd version check for major.minor %u.%u", rsock->major, |
650 | rsock->minor); | |
00e2e675 | 651 | |
53efb85a | 652 | memset(&msg, 0, sizeof(msg)); |
092b6259 | 653 | /* Prepare network byte order before transmission. */ |
6151a90f JD |
654 | msg.major = htobe32(rsock->major); |
655 | msg.minor = htobe32(rsock->minor); | |
092b6259 | 656 | |
00e2e675 | 657 | /* Send command */ |
6151a90f | 658 | ret = send_command(rsock, RELAYD_VERSION, (void *) &msg, sizeof(msg), 0); |
00e2e675 DG |
659 | if (ret < 0) { |
660 | goto error; | |
661 | } | |
662 | ||
20275fe8 | 663 | /* Receive response */ |
6151a90f | 664 | ret = recv_reply(rsock, (void *) &msg, sizeof(msg)); |
00e2e675 DG |
665 | if (ret < 0) { |
666 | goto error; | |
667 | } | |
668 | ||
669 | /* Set back to host bytes order */ | |
092b6259 DG |
670 | msg.major = be32toh(msg.major); |
671 | msg.minor = be32toh(msg.minor); | |
672 | ||
673 | /* | |
674 | * Only validate the major version. If the other side is higher, | |
675 | * communication is not possible. Only major version equal can talk to each | |
676 | * other. If the minor version differs, the lowest version is used by both | |
677 | * sides. | |
092b6259 | 678 | */ |
6151a90f | 679 | if (msg.major != rsock->major) { |
d4519fa3 | 680 | /* Not compatible */ |
67d5aa28 | 681 | ret = LTTNG_ERR_RELAYD_VERSION_FAIL; |
d4519fa3 | 682 | DBG2("Relayd version is NOT compatible. Relayd version %u != %u (us)", |
6151a90f | 683 | msg.major, rsock->major); |
092b6259 | 684 | goto error; |
00e2e675 DG |
685 | } |
686 | ||
092b6259 | 687 | /* |
6151a90f JD |
688 | * If the relayd's minor version is higher, it will adapt to our version so |
689 | * we can continue to use the latest relayd communication data structure. | |
690 | * If the received minor version is higher, the relayd should adapt to us. | |
092b6259 | 691 | */ |
6151a90f JD |
692 | if (rsock->minor > msg.minor) { |
693 | rsock->minor = msg.minor; | |
d4519fa3 | 694 | } |
092b6259 | 695 | |
d4519fa3 JD |
696 | /* Version number compatible */ |
697 | DBG2("Relayd version is compatible, using protocol version %u.%u", | |
6151a90f | 698 | rsock->major, rsock->minor); |
d4519fa3 | 699 | ret = 0; |
00e2e675 DG |
700 | |
701 | error: | |
702 | return ret; | |
703 | } | |
704 | ||
00e2e675 DG |
705 | /* |
706 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
707 | * | |
708 | * On success return 0 else return ret_code negative value. | |
709 | */ | |
6151a90f | 710 | int relayd_send_metadata(struct lttcomm_relayd_sock *rsock, size_t len) |
00e2e675 DG |
711 | { |
712 | int ret; | |
713 | ||
714 | /* Code flow error. Safety net. */ | |
6151a90f | 715 | assert(rsock); |
00e2e675 | 716 | |
77c7c900 | 717 | DBG("Relayd sending metadata of size %zu", len); |
00e2e675 DG |
718 | |
719 | /* Send command */ | |
6151a90f | 720 | ret = send_command(rsock, RELAYD_SEND_METADATA, NULL, len, 0); |
00e2e675 DG |
721 | if (ret < 0) { |
722 | goto error; | |
723 | } | |
724 | ||
725 | DBG2("Relayd metadata added successfully"); | |
726 | ||
727 | /* | |
728 | * After that call, the metadata data MUST be sent to the relayd so the | |
729 | * receive size on the other end matches the len of the metadata packet | |
633d0084 | 730 | * header. This is why we don't wait for a reply here. |
00e2e675 DG |
731 | */ |
732 | ||
733 | error: | |
734 | return ret; | |
735 | } | |
736 | ||
737 | /* | |
6151a90f | 738 | * Connect to relay daemon with an allocated lttcomm_relayd_sock. |
00e2e675 | 739 | */ |
6151a90f | 740 | int relayd_connect(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
741 | { |
742 | /* Code flow error. Safety net. */ | |
6151a90f | 743 | assert(rsock); |
00e2e675 | 744 | |
f96e4545 MD |
745 | if (!rsock->sock.ops) { |
746 | /* | |
747 | * Attempting a connect on a non-initialized socket. | |
748 | */ | |
749 | return -ECONNRESET; | |
750 | } | |
751 | ||
00e2e675 DG |
752 | DBG3("Relayd connect ..."); |
753 | ||
6151a90f | 754 | return rsock->sock.ops->connect(&rsock->sock); |
00e2e675 DG |
755 | } |
756 | ||
757 | /* | |
6151a90f | 758 | * Close relayd socket with an allocated lttcomm_relayd_sock. |
ffe60014 DG |
759 | * |
760 | * If no socket operations are found, simply return 0 meaning that everything | |
761 | * is fine. Without operations, the socket can not possibly be opened or used. | |
762 | * This is possible if the socket was allocated but not created. However, the | |
763 | * caller could simply use it to store a valid file descriptor for instance | |
764 | * passed over a Unix socket and call this to cleanup but still without a valid | |
765 | * ops pointer. | |
766 | * | |
767 | * Return the close returned value. On error, a negative value is usually | |
768 | * returned back from close(2). | |
00e2e675 | 769 | */ |
6151a90f | 770 | int relayd_close(struct lttcomm_relayd_sock *rsock) |
00e2e675 | 771 | { |
ffe60014 DG |
772 | int ret; |
773 | ||
00e2e675 | 774 | /* Code flow error. Safety net. */ |
6151a90f | 775 | assert(rsock); |
00e2e675 | 776 | |
ffe60014 | 777 | /* An invalid fd is fine, return success. */ |
6151a90f | 778 | if (rsock->sock.fd < 0) { |
ffe60014 DG |
779 | ret = 0; |
780 | goto end; | |
781 | } | |
782 | ||
6151a90f | 783 | DBG3("Relayd closing socket %d", rsock->sock.fd); |
00e2e675 | 784 | |
6151a90f JD |
785 | if (rsock->sock.ops) { |
786 | ret = rsock->sock.ops->close(&rsock->sock); | |
ffe60014 DG |
787 | } else { |
788 | /* Default call if no specific ops found. */ | |
6151a90f | 789 | ret = close(rsock->sock.fd); |
ffe60014 DG |
790 | if (ret < 0) { |
791 | PERROR("relayd_close default close"); | |
792 | } | |
793 | } | |
f96e4545 | 794 | rsock->sock.fd = -1; |
ffe60014 DG |
795 | |
796 | end: | |
797 | return ret; | |
00e2e675 DG |
798 | } |
799 | ||
800 | /* | |
801 | * Send data header structure to the relayd. | |
802 | */ | |
6151a90f | 803 | int relayd_send_data_hdr(struct lttcomm_relayd_sock *rsock, |
00e2e675 DG |
804 | struct lttcomm_relayd_data_hdr *hdr, size_t size) |
805 | { | |
806 | int ret; | |
807 | ||
808 | /* Code flow error. Safety net. */ | |
6151a90f | 809 | assert(rsock); |
00e2e675 DG |
810 | assert(hdr); |
811 | ||
f96e4545 MD |
812 | if (rsock->sock.fd < 0) { |
813 | return -ECONNRESET; | |
814 | } | |
815 | ||
8fd623e0 | 816 | DBG3("Relayd sending data header of size %zu", size); |
00e2e675 DG |
817 | |
818 | /* Again, safety net */ | |
819 | if (size == 0) { | |
820 | size = sizeof(struct lttcomm_relayd_data_hdr); | |
821 | } | |
822 | ||
823 | /* Only send data header. */ | |
6151a90f | 824 | ret = rsock->sock.ops->sendmsg(&rsock->sock, hdr, size, 0); |
00e2e675 | 825 | if (ret < 0) { |
8994307f | 826 | ret = -errno; |
00e2e675 DG |
827 | goto error; |
828 | } | |
829 | ||
830 | /* | |
831 | * The data MUST be sent right after that command for the receive on the | |
832 | * other end to match the size in the header. | |
833 | */ | |
834 | ||
835 | error: | |
836 | return ret; | |
837 | } | |
173af62f DG |
838 | |
839 | /* | |
840 | * Send close stream command to the relayd. | |
841 | */ | |
6151a90f | 842 | int relayd_send_close_stream(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
173af62f DG |
843 | uint64_t last_net_seq_num) |
844 | { | |
845 | int ret; | |
846 | struct lttcomm_relayd_close_stream msg; | |
847 | struct lttcomm_relayd_generic_reply reply; | |
848 | ||
849 | /* Code flow error. Safety net. */ | |
6151a90f | 850 | assert(rsock); |
173af62f | 851 | |
77c7c900 | 852 | DBG("Relayd closing stream id %" PRIu64, stream_id); |
173af62f | 853 | |
53efb85a | 854 | memset(&msg, 0, sizeof(msg)); |
173af62f DG |
855 | msg.stream_id = htobe64(stream_id); |
856 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
857 | ||
858 | /* Send command */ | |
6151a90f | 859 | ret = send_command(rsock, RELAYD_CLOSE_STREAM, (void *) &msg, sizeof(msg), 0); |
173af62f DG |
860 | if (ret < 0) { |
861 | goto error; | |
862 | } | |
863 | ||
20275fe8 | 864 | /* Receive response */ |
6151a90f | 865 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
173af62f DG |
866 | if (ret < 0) { |
867 | goto error; | |
868 | } | |
869 | ||
870 | reply.ret_code = be32toh(reply.ret_code); | |
871 | ||
872 | /* Return session id or negative ret code. */ | |
f73fabfd | 873 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
874 | ret = -1; |
875 | ERR("Relayd close stream replied error %d", reply.ret_code); | |
173af62f DG |
876 | } else { |
877 | /* Success */ | |
878 | ret = 0; | |
879 | } | |
880 | ||
77c7c900 | 881 | DBG("Relayd close stream id %" PRIu64 " successfully", stream_id); |
173af62f DG |
882 | |
883 | error: | |
884 | return ret; | |
885 | } | |
c8f59ee5 DG |
886 | |
887 | /* | |
888 | * Check for data availability for a given stream id. | |
889 | * | |
6d805429 | 890 | * Return 0 if NOT pending, 1 if so and a negative value on error. |
c8f59ee5 | 891 | */ |
6151a90f | 892 | int relayd_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
c8f59ee5 DG |
893 | uint64_t last_net_seq_num) |
894 | { | |
895 | int ret; | |
6d805429 | 896 | struct lttcomm_relayd_data_pending msg; |
c8f59ee5 DG |
897 | struct lttcomm_relayd_generic_reply reply; |
898 | ||
899 | /* Code flow error. Safety net. */ | |
6151a90f | 900 | assert(rsock); |
c8f59ee5 | 901 | |
6d805429 | 902 | DBG("Relayd data pending for stream id %" PRIu64, stream_id); |
c8f59ee5 | 903 | |
53efb85a | 904 | memset(&msg, 0, sizeof(msg)); |
c8f59ee5 DG |
905 | msg.stream_id = htobe64(stream_id); |
906 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
907 | ||
908 | /* Send command */ | |
6151a90f | 909 | ret = send_command(rsock, RELAYD_DATA_PENDING, (void *) &msg, |
c8f59ee5 DG |
910 | sizeof(msg), 0); |
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 | 925 | ERR("Relayd data pending replied error %d", reply.ret_code); |
c8f59ee5 DG |
926 | } |
927 | ||
928 | /* At this point, the ret code is either 1 or 0 */ | |
929 | ret = reply.ret_code; | |
930 | ||
6d805429 | 931 | DBG("Relayd data is %s pending for stream id %" PRIu64, |
9dd26bb9 | 932 | ret == 1 ? "" : "NOT", stream_id); |
c8f59ee5 DG |
933 | |
934 | error: | |
935 | return ret; | |
936 | } | |
937 | ||
938 | /* | |
939 | * Check on the relayd side for a quiescent state on the control socket. | |
940 | */ | |
6151a90f | 941 | int relayd_quiescent_control(struct lttcomm_relayd_sock *rsock, |
ad7051c0 | 942 | uint64_t metadata_stream_id) |
c8f59ee5 DG |
943 | { |
944 | int ret; | |
ad7051c0 | 945 | struct lttcomm_relayd_quiescent_control msg; |
c8f59ee5 DG |
946 | struct lttcomm_relayd_generic_reply reply; |
947 | ||
948 | /* Code flow error. Safety net. */ | |
6151a90f | 949 | assert(rsock); |
c8f59ee5 DG |
950 | |
951 | DBG("Relayd checking quiescent control state"); | |
952 | ||
53efb85a | 953 | memset(&msg, 0, sizeof(msg)); |
ad7051c0 DG |
954 | msg.stream_id = htobe64(metadata_stream_id); |
955 | ||
c8f59ee5 | 956 | /* Send command */ |
6151a90f | 957 | ret = send_command(rsock, RELAYD_QUIESCENT_CONTROL, &msg, sizeof(msg), 0); |
c8f59ee5 DG |
958 | if (ret < 0) { |
959 | goto error; | |
960 | } | |
961 | ||
20275fe8 | 962 | /* Receive response */ |
6151a90f | 963 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
964 | if (ret < 0) { |
965 | goto error; | |
966 | } | |
967 | ||
968 | reply.ret_code = be32toh(reply.ret_code); | |
969 | ||
970 | /* Return session id or negative ret code. */ | |
971 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
972 | ret = -1; |
973 | ERR("Relayd quiescent control replied error %d", reply.ret_code); | |
c8f59ee5 DG |
974 | goto error; |
975 | } | |
976 | ||
977 | /* Control socket is quiescent */ | |
6d805429 | 978 | return 0; |
c8f59ee5 DG |
979 | |
980 | error: | |
981 | return ret; | |
982 | } | |
f7079f67 DG |
983 | |
984 | /* | |
985 | * Begin a data pending command for a specific session id. | |
986 | */ | |
6151a90f | 987 | int relayd_begin_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id) |
f7079f67 DG |
988 | { |
989 | int ret; | |
990 | struct lttcomm_relayd_begin_data_pending msg; | |
991 | struct lttcomm_relayd_generic_reply reply; | |
992 | ||
993 | /* Code flow error. Safety net. */ | |
6151a90f | 994 | assert(rsock); |
f7079f67 DG |
995 | |
996 | DBG("Relayd begin data pending"); | |
997 | ||
53efb85a | 998 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
999 | msg.session_id = htobe64(id); |
1000 | ||
1001 | /* Send command */ | |
6151a90f | 1002 | ret = send_command(rsock, RELAYD_BEGIN_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
1003 | if (ret < 0) { |
1004 | goto error; | |
1005 | } | |
1006 | ||
20275fe8 | 1007 | /* Receive response */ |
6151a90f | 1008 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
1009 | if (ret < 0) { |
1010 | goto error; | |
1011 | } | |
1012 | ||
1013 | reply.ret_code = be32toh(reply.ret_code); | |
1014 | ||
1015 | /* Return session id or negative ret code. */ | |
1016 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
1017 | ret = -1; |
1018 | ERR("Relayd begin data pending replied error %d", reply.ret_code); | |
f7079f67 DG |
1019 | goto error; |
1020 | } | |
1021 | ||
1022 | return 0; | |
1023 | ||
1024 | error: | |
1025 | return ret; | |
1026 | } | |
1027 | ||
1028 | /* | |
1029 | * End a data pending command for a specific session id. | |
1030 | * | |
1031 | * Return 0 on success and set is_data_inflight to 0 if no data is being | |
1032 | * streamed or 1 if it is the case. | |
1033 | */ | |
6151a90f | 1034 | int relayd_end_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id, |
f7079f67 DG |
1035 | unsigned int *is_data_inflight) |
1036 | { | |
af6c30b5 | 1037 | int ret, recv_ret; |
f7079f67 DG |
1038 | struct lttcomm_relayd_end_data_pending msg; |
1039 | struct lttcomm_relayd_generic_reply reply; | |
1040 | ||
1041 | /* Code flow error. Safety net. */ | |
6151a90f | 1042 | assert(rsock); |
f7079f67 DG |
1043 | |
1044 | DBG("Relayd end data pending"); | |
1045 | ||
53efb85a | 1046 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
1047 | msg.session_id = htobe64(id); |
1048 | ||
1049 | /* Send command */ | |
6151a90f | 1050 | ret = send_command(rsock, RELAYD_END_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
1051 | if (ret < 0) { |
1052 | goto error; | |
1053 | } | |
1054 | ||
20275fe8 | 1055 | /* Receive response */ |
6151a90f | 1056 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
1057 | if (ret < 0) { |
1058 | goto error; | |
1059 | } | |
1060 | ||
af6c30b5 DG |
1061 | recv_ret = be32toh(reply.ret_code); |
1062 | if (recv_ret < 0) { | |
1063 | ret = recv_ret; | |
f7079f67 DG |
1064 | goto error; |
1065 | } | |
1066 | ||
af6c30b5 | 1067 | *is_data_inflight = recv_ret; |
f7079f67 | 1068 | |
af6c30b5 | 1069 | DBG("Relayd end data pending is data inflight: %d", recv_ret); |
f7079f67 DG |
1070 | |
1071 | return 0; | |
1072 | ||
1073 | error: | |
1074 | return ret; | |
1075 | } | |
1c20f0e2 JD |
1076 | |
1077 | /* | |
1078 | * Send index to the relayd. | |
1079 | */ | |
1080 | int relayd_send_index(struct lttcomm_relayd_sock *rsock, | |
50adc264 | 1081 | struct ctf_packet_index *index, uint64_t relay_stream_id, |
1c20f0e2 JD |
1082 | uint64_t net_seq_num) |
1083 | { | |
1084 | int ret; | |
1085 | struct lttcomm_relayd_index msg; | |
1086 | struct lttcomm_relayd_generic_reply reply; | |
1087 | ||
1088 | /* Code flow error. Safety net. */ | |
1089 | assert(rsock); | |
1090 | ||
1091 | if (rsock->minor < 4) { | |
1092 | DBG("Not sending indexes before protocol 2.4"); | |
1093 | ret = 0; | |
1094 | goto error; | |
1095 | } | |
1096 | ||
1097 | DBG("Relayd sending index for stream ID %" PRIu64, relay_stream_id); | |
1098 | ||
53efb85a | 1099 | memset(&msg, 0, sizeof(msg)); |
1c20f0e2 JD |
1100 | msg.relay_stream_id = htobe64(relay_stream_id); |
1101 | msg.net_seq_num = htobe64(net_seq_num); | |
1102 | ||
1103 | /* The index is already in big endian. */ | |
1104 | msg.packet_size = index->packet_size; | |
1105 | msg.content_size = index->content_size; | |
1106 | msg.timestamp_begin = index->timestamp_begin; | |
1107 | msg.timestamp_end = index->timestamp_end; | |
1108 | msg.events_discarded = index->events_discarded; | |
1109 | msg.stream_id = index->stream_id; | |
1110 | ||
234cd636 JD |
1111 | if (rsock->minor >= 8) { |
1112 | msg.stream_instance_id = index->stream_instance_id; | |
1113 | msg.packet_seq_num = index->packet_seq_num; | |
1114 | } | |
1115 | ||
1c20f0e2 | 1116 | /* Send command */ |
f8f3885c MD |
1117 | ret = send_command(rsock, RELAYD_SEND_INDEX, &msg, |
1118 | lttcomm_relayd_index_len(lttng_to_index_major(rsock->major, | |
1119 | rsock->minor), | |
1120 | lttng_to_index_minor(rsock->major, rsock->minor)), | |
1121 | 0); | |
1c20f0e2 JD |
1122 | if (ret < 0) { |
1123 | goto error; | |
1124 | } | |
1125 | ||
1126 | /* Receive response */ | |
1127 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1128 | if (ret < 0) { | |
1129 | goto error; | |
1130 | } | |
1131 | ||
1132 | reply.ret_code = be32toh(reply.ret_code); | |
1133 | ||
1134 | /* Return session id or negative ret code. */ | |
1135 | if (reply.ret_code != LTTNG_OK) { | |
1136 | ret = -1; | |
1137 | ERR("Relayd send index replied error %d", reply.ret_code); | |
1138 | } else { | |
1139 | /* Success */ | |
1140 | ret = 0; | |
1141 | } | |
1142 | ||
1143 | error: | |
1144 | return ret; | |
1145 | } | |
93ec662e JD |
1146 | |
1147 | /* | |
1148 | * Ask the relay to reset the metadata trace file (regeneration). | |
1149 | */ | |
1150 | int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, | |
1151 | uint64_t stream_id, uint64_t version) | |
1152 | { | |
1153 | int ret; | |
1154 | struct lttcomm_relayd_reset_metadata msg; | |
1155 | struct lttcomm_relayd_generic_reply reply; | |
1156 | ||
1157 | /* Code flow error. Safety net. */ | |
1158 | assert(rsock); | |
1159 | ||
1160 | /* Should have been prevented by the sessiond. */ | |
1161 | if (rsock->minor < 8) { | |
1162 | ERR("Metadata regeneration unsupported before 2.8"); | |
1163 | ret = -1; | |
1164 | goto error; | |
1165 | } | |
1166 | ||
1167 | DBG("Relayd reset metadata stream id %" PRIu64, stream_id); | |
1168 | ||
1169 | memset(&msg, 0, sizeof(msg)); | |
1170 | msg.stream_id = htobe64(stream_id); | |
1171 | msg.version = htobe64(version); | |
1172 | ||
1173 | /* Send command */ | |
1174 | ret = send_command(rsock, RELAYD_RESET_METADATA, (void *) &msg, sizeof(msg), 0); | |
1175 | if (ret < 0) { | |
1176 | goto error; | |
1177 | } | |
1178 | ||
1179 | /* Receive response */ | |
1180 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1181 | if (ret < 0) { | |
1182 | goto error; | |
1183 | } | |
1184 | ||
1185 | reply.ret_code = be32toh(reply.ret_code); | |
1186 | ||
1187 | /* Return session id or negative ret code. */ | |
1188 | if (reply.ret_code != LTTNG_OK) { | |
1189 | ret = -1; | |
1190 | ERR("Relayd reset metadata replied error %d", reply.ret_code); | |
1191 | } else { | |
1192 | /* Success */ | |
1193 | ret = 0; | |
1194 | } | |
1195 | ||
1196 | DBG("Relayd reset metadata stream id %" PRIu64 " successfully", stream_id); | |
1197 | ||
1198 | error: | |
1199 | return ret; | |
1200 | } | |
a1ae2ea5 | 1201 | |
c35f9726 | 1202 | int relayd_rotate_streams(struct lttcomm_relayd_sock *sock, |
ebb29c10 | 1203 | unsigned int stream_count, const uint64_t *new_chunk_id, |
c35f9726 | 1204 | const struct relayd_stream_rotation_position *positions) |
d73bf3d7 JD |
1205 | { |
1206 | int ret; | |
c35f9726 JG |
1207 | unsigned int i; |
1208 | struct lttng_dynamic_buffer payload; | |
1209 | struct lttcomm_relayd_generic_reply reply = {}; | |
1210 | const struct lttcomm_relayd_rotate_streams msg = { | |
1211 | .stream_count = htobe32((uint32_t) stream_count), | |
1212 | .new_chunk_id = (typeof(msg.new_chunk_id)) { | |
1213 | .is_set = !!new_chunk_id, | |
1214 | .value = htobe64(new_chunk_id ? *new_chunk_id : 0), | |
1215 | }, | |
1216 | }; | |
1217 | char new_chunk_id_buf[MAX_INT_DEC_LEN(*new_chunk_id)] = {}; | |
1218 | const char *new_chunk_id_str; | |
d73bf3d7 | 1219 | |
070b6a86 MD |
1220 | if (!relayd_supports_chunks(sock)) { |
1221 | DBG("Refusing to rotate remote streams: relayd does not support chunks"); | |
1222 | return 0; | |
1223 | } | |
1224 | ||
c35f9726 | 1225 | lttng_dynamic_buffer_init(&payload); |
d73bf3d7 | 1226 | |
c35f9726 JG |
1227 | /* Code flow error. Safety net. */ |
1228 | assert(sock); | |
d73bf3d7 | 1229 | |
c35f9726 JG |
1230 | if (new_chunk_id) { |
1231 | ret = snprintf(new_chunk_id_buf, sizeof(new_chunk_id_buf), | |
1232 | "%" PRIu64, *new_chunk_id); | |
1233 | if (ret == -1 || ret >= sizeof(new_chunk_id_buf)) { | |
1234 | new_chunk_id_str = "formatting error"; | |
1235 | } else { | |
1236 | new_chunk_id_str = new_chunk_id_buf; | |
1237 | } | |
1238 | } else { | |
1239 | new_chunk_id_str = "none"; | |
d73bf3d7 JD |
1240 | } |
1241 | ||
c35f9726 JG |
1242 | DBG("Preparing \"rotate streams\" command payload: new_chunk_id = %s, stream_count = %u", |
1243 | new_chunk_id_str, stream_count); | |
d73bf3d7 | 1244 | |
c35f9726 JG |
1245 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); |
1246 | if (ret) { | |
1247 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
d73bf3d7 JD |
1248 | goto error; |
1249 | } | |
1250 | ||
c35f9726 JG |
1251 | for (i = 0; i < stream_count; i++) { |
1252 | const struct relayd_stream_rotation_position *position = | |
1253 | &positions[i]; | |
1254 | const struct lttcomm_relayd_stream_rotation_position comm_position = { | |
1255 | .stream_id = htobe64(position->stream_id), | |
1256 | .rotate_at_seq_num = htobe64( | |
1257 | position->rotate_at_seq_num), | |
1258 | }; | |
1259 | ||
1260 | DBG("Rotate stream %" PRIu64 "at sequence number %" PRIu64, | |
1261 | position->stream_id, | |
1262 | position->rotate_at_seq_num); | |
1263 | ret = lttng_dynamic_buffer_append(&payload, &comm_position, | |
1264 | sizeof(comm_position)); | |
1265 | if (ret) { | |
1266 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
1267 | goto error; | |
1268 | } | |
1269 | } | |
d73bf3d7 JD |
1270 | |
1271 | /* Send command. */ | |
c35f9726 JG |
1272 | ret = send_command(sock, RELAYD_ROTATE_STREAMS, payload.data, |
1273 | payload.size, 0); | |
d73bf3d7 | 1274 | if (ret < 0) { |
c35f9726 | 1275 | ERR("Failed to send \"rotate stream\" command"); |
d73bf3d7 JD |
1276 | goto error; |
1277 | } | |
1278 | ||
1279 | /* Receive response. */ | |
c35f9726 | 1280 | ret = recv_reply(sock, &reply, sizeof(reply)); |
d73bf3d7 | 1281 | if (ret < 0) { |
c35f9726 | 1282 | ERR("Failed to receive \"rotate streams\" command reply"); |
d73bf3d7 JD |
1283 | goto error; |
1284 | } | |
1285 | ||
1286 | reply.ret_code = be32toh(reply.ret_code); | |
d73bf3d7 JD |
1287 | if (reply.ret_code != LTTNG_OK) { |
1288 | ret = -1; | |
c35f9726 | 1289 | ERR("Relayd rotate streams replied error %d", reply.ret_code); |
d73bf3d7 JD |
1290 | } else { |
1291 | /* Success. */ | |
1292 | ret = 0; | |
c35f9726 | 1293 | DBG("Relayd rotated streams successfully"); |
d73bf3d7 JD |
1294 | } |
1295 | ||
1296 | error: | |
c35f9726 | 1297 | lttng_dynamic_buffer_reset(&payload); |
d73bf3d7 JD |
1298 | return ret; |
1299 | } | |
e5add6d0 JG |
1300 | |
1301 | int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock, | |
1302 | struct lttng_trace_chunk *chunk) | |
1303 | { | |
1304 | int ret = 0; | |
1305 | enum lttng_trace_chunk_status status; | |
1306 | struct lttcomm_relayd_create_trace_chunk msg = {}; | |
1307 | struct lttcomm_relayd_generic_reply reply = {}; | |
1308 | struct lttng_dynamic_buffer payload; | |
1309 | uint64_t chunk_id; | |
1310 | time_t creation_timestamp; | |
1311 | const char *chunk_name; | |
1312 | size_t chunk_name_length; | |
913a542b | 1313 | bool overridden_name; |
e5add6d0 JG |
1314 | |
1315 | lttng_dynamic_buffer_init(&payload); | |
1316 | ||
070b6a86 MD |
1317 | if (!relayd_supports_chunks(sock)) { |
1318 | DBG("Refusing to create remote trace chunk: relayd does not support chunks"); | |
1319 | goto end; | |
1320 | } | |
1321 | ||
e5add6d0 JG |
1322 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1323 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1324 | ret = -1; | |
1325 | goto end; | |
1326 | } | |
1327 | ||
1328 | status = lttng_trace_chunk_get_creation_timestamp( | |
1329 | chunk, &creation_timestamp); | |
1330 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1331 | ret = -1; | |
1332 | goto end; | |
1333 | } | |
1334 | ||
1335 | status = lttng_trace_chunk_get_name( | |
913a542b | 1336 | chunk, &chunk_name, &overridden_name); |
e5add6d0 JG |
1337 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK && |
1338 | status != LTTNG_TRACE_CHUNK_STATUS_NONE) { | |
1339 | ret = -1; | |
1340 | goto end; | |
1341 | } | |
1342 | ||
913a542b | 1343 | chunk_name_length = overridden_name ? (strlen(chunk_name) + 1) : 0; |
e5add6d0 JG |
1344 | msg = (typeof(msg)){ |
1345 | .chunk_id = htobe64(chunk_id), | |
1346 | .creation_timestamp = htobe64((uint64_t) creation_timestamp), | |
1347 | .override_name_length = htobe32((uint32_t) chunk_name_length), | |
1348 | }; | |
1349 | ||
1350 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); | |
1351 | if (ret) { | |
1352 | goto end; | |
1353 | } | |
1354 | if (chunk_name_length) { | |
1355 | ret = lttng_dynamic_buffer_append( | |
1356 | &payload, chunk_name, chunk_name_length); | |
1357 | if (ret) { | |
1358 | goto end; | |
1359 | } | |
1360 | } | |
1361 | ||
bbc4768c JG |
1362 | ret = send_command(sock, RELAYD_CREATE_TRACE_CHUNK, payload.data, |
1363 | payload.size, 0); | |
e5add6d0 JG |
1364 | if (ret < 0) { |
1365 | ERR("Failed to send trace chunk creation command to relay daemon"); | |
1366 | goto end; | |
1367 | } | |
1368 | ||
1369 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1370 | if (ret < 0) { | |
1371 | ERR("Failed to receive relay daemon trace chunk creation command reply"); | |
1372 | goto end; | |
1373 | } | |
1374 | ||
1375 | reply.ret_code = be32toh(reply.ret_code); | |
1376 | if (reply.ret_code != LTTNG_OK) { | |
1377 | ret = -1; | |
1378 | ERR("Relayd trace chunk create replied error %d", | |
1379 | reply.ret_code); | |
1380 | } else { | |
1381 | ret = 0; | |
1382 | DBG("Relayd successfully created trace chunk: chunk_id = %" PRIu64, | |
1383 | chunk_id); | |
1384 | } | |
1385 | ||
1386 | end: | |
1387 | lttng_dynamic_buffer_reset(&payload); | |
1388 | return ret; | |
1389 | } | |
bbc4768c JG |
1390 | |
1391 | int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock, | |
ecd1a12f MD |
1392 | struct lttng_trace_chunk *chunk, |
1393 | char *path) | |
bbc4768c JG |
1394 | { |
1395 | int ret = 0; | |
1396 | enum lttng_trace_chunk_status status; | |
1397 | struct lttcomm_relayd_close_trace_chunk msg = {}; | |
ecd1a12f | 1398 | struct lttcomm_relayd_close_trace_chunk_reply reply = {}; |
bbc4768c JG |
1399 | uint64_t chunk_id; |
1400 | time_t close_timestamp; | |
1401 | LTTNG_OPTIONAL(enum lttng_trace_chunk_command_type) close_command = {}; | |
1402 | ||
070b6a86 MD |
1403 | if (!relayd_supports_chunks(sock)) { |
1404 | DBG("Refusing to close remote trace chunk: relayd does not support chunks"); | |
1405 | goto end; | |
1406 | } | |
1407 | ||
bbc4768c JG |
1408 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1409 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1410 | ERR("Failed to get trace chunk id"); | |
1411 | ret = -1; | |
1412 | goto end; | |
1413 | } | |
1414 | ||
1415 | status = lttng_trace_chunk_get_close_timestamp(chunk, &close_timestamp); | |
1416 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1417 | ERR("Failed to get trace chunk close timestamp"); | |
1418 | ret = -1; | |
1419 | goto end; | |
1420 | } | |
1421 | ||
1422 | status = lttng_trace_chunk_get_close_command(chunk, | |
1423 | &close_command.value); | |
1424 | switch (status) { | |
1425 | case LTTNG_TRACE_CHUNK_STATUS_OK: | |
1426 | close_command.is_set = 1; | |
1427 | break; | |
1428 | case LTTNG_TRACE_CHUNK_STATUS_NONE: | |
1429 | break; | |
1430 | default: | |
1431 | ERR("Failed to get trace chunk close command"); | |
1432 | ret = -1; | |
1433 | goto end; | |
1434 | } | |
1435 | ||
1436 | msg = (typeof(msg)){ | |
1437 | .chunk_id = htobe64(chunk_id), | |
1438 | .close_timestamp = htobe64((uint64_t) close_timestamp), | |
1439 | .close_command = { | |
1440 | .value = htobe32((uint32_t) close_command.value), | |
1441 | .is_set = close_command.is_set, | |
1442 | }, | |
1443 | }; | |
1444 | ||
1445 | ret = send_command(sock, RELAYD_CLOSE_TRACE_CHUNK, &msg, sizeof(msg), | |
1446 | 0); | |
1447 | if (ret < 0) { | |
1448 | ERR("Failed to send trace chunk close command to relay daemon"); | |
1449 | goto end; | |
1450 | } | |
1451 | ||
1452 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1453 | if (ret < 0) { | |
1454 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1455 | goto end; | |
1456 | } | |
1457 | ||
ecd1a12f MD |
1458 | reply.path_length = be32toh(reply.path_length); |
1459 | if (reply.path_length >= LTTNG_PATH_MAX) { | |
1460 | ERR("Chunk path too long"); | |
1461 | ret = -1; | |
1462 | goto end; | |
1463 | } | |
1464 | ||
1465 | ret = recv_reply(sock, path, reply.path_length); | |
1466 | if (ret < 0) { | |
1467 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1468 | goto end; | |
1469 | } | |
1470 | if (path[reply.path_length - 1] != '\0') { | |
1471 | ERR("Invalid trace chunk path returned by relay daemon (not null-terminated)"); | |
1472 | ret = -1; | |
1473 | goto end; | |
1474 | } | |
1475 | ||
1476 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1477 | if (reply.generic.ret_code != LTTNG_OK) { | |
bbc4768c JG |
1478 | ret = -1; |
1479 | ERR("Relayd trace chunk close replied error %d", | |
ecd1a12f | 1480 | reply.generic.ret_code); |
bbc4768c JG |
1481 | } else { |
1482 | ret = 0; | |
1483 | DBG("Relayd successfully closed trace chunk: chunk_id = %" PRIu64, | |
1484 | chunk_id); | |
1485 | } | |
1486 | end: | |
1487 | return ret; | |
1488 | } | |
c35f9726 JG |
1489 | |
1490 | int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock, | |
1491 | uint64_t chunk_id, bool *chunk_exists) | |
1492 | { | |
1493 | int ret = 0; | |
1494 | struct lttcomm_relayd_trace_chunk_exists msg = {}; | |
1495 | struct lttcomm_relayd_trace_chunk_exists_reply reply = {}; | |
1496 | ||
070b6a86 MD |
1497 | if (!relayd_supports_chunks(sock)) { |
1498 | DBG("Refusing to check for trace chunk existence: relayd does not support chunks"); | |
caa15afd JR |
1499 | /* The chunk will never exist */ |
1500 | *chunk_exists = false; | |
070b6a86 MD |
1501 | goto end; |
1502 | } | |
1503 | ||
c35f9726 JG |
1504 | msg = (typeof(msg)){ |
1505 | .chunk_id = htobe64(chunk_id), | |
1506 | }; | |
1507 | ||
1508 | ret = send_command(sock, RELAYD_TRACE_CHUNK_EXISTS, &msg, sizeof(msg), | |
1509 | 0); | |
1510 | if (ret < 0) { | |
1511 | ERR("Failed to send trace chunk exists command to relay daemon"); | |
1512 | goto end; | |
1513 | } | |
1514 | ||
1515 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1516 | if (ret < 0) { | |
1517 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1518 | goto end; | |
1519 | } | |
1520 | ||
1521 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1522 | if (reply.generic.ret_code != LTTNG_OK) { | |
1523 | ret = -1; | |
1524 | ERR("Relayd trace chunk close replied error %d", | |
1525 | reply.generic.ret_code); | |
1526 | } else { | |
1527 | ret = 0; | |
1528 | DBG("Relayd successfully checked trace chunk existence: chunk_id = %" PRIu64 | |
1529 | ", exists = %s", chunk_id, | |
1530 | reply.trace_chunk_exists ? "true" : "false"); | |
1531 | *chunk_exists = !!reply.trace_chunk_exists; | |
1532 | } | |
1533 | end: | |
1534 | return ret; | |
1535 | } |