Commit | Line | Data |
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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 | ||
37 | /* | |
38 | * Send command. Fill up the header and append the data. | |
39 | */ | |
6151a90f | 40 | static int send_command(struct lttcomm_relayd_sock *rsock, |
76b9afaa | 41 | enum lttcomm_relayd_command cmd, const void *data, size_t size, |
00e2e675 DG |
42 | int flags) |
43 | { | |
44 | int ret; | |
45 | struct lttcomm_relayd_hdr header; | |
46 | char *buf; | |
47 | uint64_t buf_size = sizeof(header); | |
48 | ||
f96e4545 MD |
49 | if (rsock->sock.fd < 0) { |
50 | return -ECONNRESET; | |
51 | } | |
52 | ||
00e2e675 DG |
53 | if (data) { |
54 | buf_size += size; | |
55 | } | |
56 | ||
57 | buf = zmalloc(buf_size); | |
58 | if (buf == NULL) { | |
59 | PERROR("zmalloc relayd send command buf"); | |
60 | ret = -1; | |
61 | goto alloc_error; | |
62 | } | |
63 | ||
53efb85a | 64 | memset(&header, 0, sizeof(header)); |
00e2e675 DG |
65 | header.cmd = htobe32(cmd); |
66 | header.data_size = htobe64(size); | |
67 | ||
68 | /* Zeroed for now since not used. */ | |
69 | header.cmd_version = 0; | |
70 | header.circuit_id = 0; | |
71 | ||
72 | /* Prepare buffer to send. */ | |
73 | memcpy(buf, &header, sizeof(header)); | |
74 | if (data) { | |
75 | memcpy(buf + sizeof(header), data, size); | |
76 | } | |
77 | ||
06586bbe | 78 | DBG3("Relayd sending command %d of size %" PRIu64, (int) cmd, buf_size); |
6151a90f | 79 | ret = rsock->sock.ops->sendmsg(&rsock->sock, buf, buf_size, flags); |
00e2e675 | 80 | if (ret < 0) { |
06586bbe JG |
81 | PERROR("Failed to send command %d of size %" PRIu64, |
82 | (int) cmd, buf_size); | |
8994307f | 83 | ret = -errno; |
00e2e675 DG |
84 | goto error; |
85 | } | |
00e2e675 DG |
86 | error: |
87 | free(buf); | |
88 | alloc_error: | |
89 | return ret; | |
90 | } | |
91 | ||
92 | /* | |
93 | * Receive reply data on socket. This MUST be call after send_command or else | |
94 | * could result in unexpected behavior(s). | |
95 | */ | |
6151a90f | 96 | static int recv_reply(struct lttcomm_relayd_sock *rsock, void *data, size_t size) |
00e2e675 DG |
97 | { |
98 | int ret; | |
99 | ||
f96e4545 MD |
100 | if (rsock->sock.fd < 0) { |
101 | return -ECONNRESET; | |
102 | } | |
103 | ||
8fd623e0 | 104 | DBG3("Relayd waiting for reply of size %zu", size); |
00e2e675 | 105 | |
6151a90f | 106 | ret = rsock->sock.ops->recvmsg(&rsock->sock, data, size, 0); |
20275fe8 DG |
107 | if (ret <= 0 || ret != size) { |
108 | if (ret == 0) { | |
109 | /* Orderly shutdown. */ | |
6151a90f | 110 | DBG("Socket %d has performed an orderly shutdown", rsock->sock.fd); |
20275fe8 | 111 | } else { |
8fd623e0 | 112 | DBG("Receiving reply failed on sock %d for size %zu with ret %d", |
6151a90f | 113 | rsock->sock.fd, size, ret); |
20275fe8 DG |
114 | } |
115 | /* Always return -1 here and the caller can use errno. */ | |
116 | ret = -1; | |
00e2e675 DG |
117 | goto error; |
118 | } | |
119 | ||
120 | error: | |
121 | return ret; | |
122 | } | |
123 | ||
d3e2ba59 | 124 | /* |
6fa5fe7c MD |
125 | * Starting from 2.11, RELAYD_CREATE_SESSION payload (session_name, |
126 | * hostname, and base_path) have no length restriction on the sender side. | |
f86f6389 JR |
127 | * Length for both payloads is stored in the msg struct. A new dynamic size |
128 | * payload size is introduced. | |
129 | */ | |
130 | static int relayd_create_session_2_11(struct lttcomm_relayd_sock *rsock, | |
fb9a95c4 | 131 | const char *session_name, const char *hostname, |
6fa5fe7c MD |
132 | const char *base_path, int session_live_timer, |
133 | unsigned int snapshot, uint64_t sessiond_session_id, | |
134 | const lttng_uuid sessiond_uuid, const uint64_t *current_chunk_id, | |
46ef2188 | 135 | time_t creation_time, bool session_name_contains_creation_time) |
f86f6389 JR |
136 | { |
137 | int ret; | |
138 | struct lttcomm_relayd_create_session_2_11 *msg = NULL; | |
139 | size_t session_name_len; | |
140 | size_t hostname_len; | |
6fa5fe7c | 141 | size_t base_path_len; |
f86f6389 | 142 | size_t msg_length; |
6fa5fe7c | 143 | char *dst; |
f86f6389 | 144 | |
46ef2188 MD |
145 | if (!base_path) { |
146 | base_path = ""; | |
147 | } | |
148 | /* The three names are sent with a '\0' delimiter between them. */ | |
f86f6389 JR |
149 | session_name_len = strlen(session_name) + 1; |
150 | hostname_len = strlen(hostname) + 1; | |
6fa5fe7c | 151 | base_path_len = base_path ? strlen(base_path) + 1 : 0; |
f86f6389 | 152 | |
6fa5fe7c | 153 | msg_length = sizeof(*msg) + session_name_len + hostname_len + base_path_len; |
f86f6389 JR |
154 | msg = zmalloc(msg_length); |
155 | if (!msg) { | |
156 | PERROR("zmalloc create_session_2_11 command message"); | |
157 | ret = -1; | |
158 | goto error; | |
159 | } | |
160 | ||
161 | assert(session_name_len <= UINT32_MAX); | |
162 | msg->session_name_len = htobe32(session_name_len); | |
163 | ||
164 | assert(hostname_len <= UINT32_MAX); | |
165 | msg->hostname_len = htobe32(hostname_len); | |
166 | ||
6fa5fe7c MD |
167 | assert(base_path_len <= UINT32_MAX); |
168 | msg->base_path_len = htobe32(base_path_len); | |
169 | ||
170 | dst = msg->names; | |
171 | if (lttng_strncpy(dst, session_name, session_name_len)) { | |
172 | ret = -1; | |
173 | goto error; | |
174 | } | |
175 | dst += session_name_len; | |
176 | if (lttng_strncpy(dst, hostname, hostname_len)) { | |
f86f6389 JR |
177 | ret = -1; |
178 | goto error; | |
179 | } | |
6fa5fe7c MD |
180 | dst += hostname_len; |
181 | if (base_path && lttng_strncpy(dst, base_path, base_path_len)) { | |
f86f6389 JR |
182 | ret = -1; |
183 | goto error; | |
184 | } | |
185 | ||
186 | msg->live_timer = htobe32(session_live_timer); | |
187 | msg->snapshot = !!snapshot; | |
188 | ||
658f12fa JG |
189 | lttng_uuid_copy(msg->sessiond_uuid, sessiond_uuid); |
190 | msg->session_id = htobe64(sessiond_session_id); | |
46ef2188 | 191 | msg->session_name_contains_creation_time = session_name_contains_creation_time; |
f39bd140 JG |
192 | if (current_chunk_id) { |
193 | LTTNG_OPTIONAL_SET(&msg->current_chunk_id, | |
194 | htobe64(*current_chunk_id)); | |
195 | } | |
196 | ||
db1da059 JG |
197 | msg->creation_time = htobe64((uint64_t) creation_time); |
198 | ||
f86f6389 JR |
199 | /* Send command */ |
200 | ret = send_command(rsock, RELAYD_CREATE_SESSION, msg, msg_length, 0); | |
201 | if (ret < 0) { | |
202 | goto error; | |
203 | } | |
204 | error: | |
205 | free(msg); | |
206 | return ret; | |
207 | } | |
208 | /* | |
209 | * From 2.4 to 2.10, RELAYD_CREATE_SESSION takes additional parameters to | |
d3e2ba59 JD |
210 | * support the live reading capability. |
211 | */ | |
212 | static int relayd_create_session_2_4(struct lttcomm_relayd_sock *rsock, | |
fb9a95c4 JG |
213 | const char *session_name, const char *hostname, |
214 | int session_live_timer, unsigned int snapshot) | |
d3e2ba59 JD |
215 | { |
216 | int ret; | |
217 | struct lttcomm_relayd_create_session_2_4 msg; | |
218 | ||
3a13ffd5 MD |
219 | if (lttng_strncpy(msg.session_name, session_name, |
220 | sizeof(msg.session_name))) { | |
246777db MD |
221 | ret = -1; |
222 | goto error; | |
223 | } | |
3a13ffd5 | 224 | if (lttng_strncpy(msg.hostname, hostname, sizeof(msg.hostname))) { |
246777db MD |
225 | ret = -1; |
226 | goto error; | |
227 | } | |
d3e2ba59 | 228 | msg.live_timer = htobe32(session_live_timer); |
7d2f7452 | 229 | msg.snapshot = htobe32(snapshot); |
d3e2ba59 JD |
230 | |
231 | /* Send command */ | |
232 | ret = send_command(rsock, RELAYD_CREATE_SESSION, &msg, sizeof(msg), 0); | |
233 | if (ret < 0) { | |
234 | goto error; | |
235 | } | |
236 | ||
237 | error: | |
238 | return ret; | |
239 | } | |
240 | ||
241 | /* | |
242 | * RELAYD_CREATE_SESSION from 2.1 to 2.3. | |
243 | */ | |
42e9a27b | 244 | static int relayd_create_session_2_1(struct lttcomm_relayd_sock *rsock) |
d3e2ba59 JD |
245 | { |
246 | int ret; | |
247 | ||
248 | /* Send command */ | |
249 | ret = send_command(rsock, RELAYD_CREATE_SESSION, NULL, 0, 0); | |
250 | if (ret < 0) { | |
251 | goto error; | |
252 | } | |
253 | ||
254 | error: | |
255 | return ret; | |
256 | } | |
257 | ||
c5b6f4f0 DG |
258 | /* |
259 | * Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and | |
260 | * set session_id of the relayd if we have a successful reply from the relayd. | |
261 | * | |
20275fe8 DG |
262 | * On success, return 0 else a negative value which is either an errno error or |
263 | * a lttng error code from the relayd. | |
c5b6f4f0 | 264 | */ |
fb9a95c4 JG |
265 | int relayd_create_session(struct lttcomm_relayd_sock *rsock, |
266 | uint64_t *relayd_session_id, | |
267 | const char *session_name, const char *hostname, | |
6fa5fe7c | 268 | const char *base_path, int session_live_timer, |
658f12fa | 269 | unsigned int snapshot, uint64_t sessiond_session_id, |
f39bd140 | 270 | const lttng_uuid sessiond_uuid, |
db1da059 | 271 | const uint64_t *current_chunk_id, |
46ef2188 | 272 | time_t creation_time, bool session_name_contains_creation_time) |
c5b6f4f0 DG |
273 | { |
274 | int ret; | |
275 | struct lttcomm_relayd_status_session reply; | |
276 | ||
6151a90f | 277 | assert(rsock); |
658f12fa | 278 | assert(relayd_session_id); |
c5b6f4f0 DG |
279 | |
280 | DBG("Relayd create session"); | |
281 | ||
f86f6389 JR |
282 | if (rsock->minor < 4) { |
283 | /* From 2.1 to 2.3 */ | |
284 | ret = relayd_create_session_2_1(rsock); | |
285 | } else if (rsock->minor >= 4 && rsock->minor < 11) { | |
286 | /* From 2.4 to 2.10 */ | |
287 | ret = relayd_create_session_2_4(rsock, session_name, | |
288 | hostname, session_live_timer, snapshot); | |
289 | } else { | |
290 | /* From 2.11 to ... */ | |
291 | ret = relayd_create_session_2_11(rsock, session_name, | |
6fa5fe7c | 292 | hostname, base_path, session_live_timer, snapshot, |
f39bd140 | 293 | sessiond_session_id, sessiond_uuid, |
46ef2188 MD |
294 | current_chunk_id, creation_time, |
295 | session_name_contains_creation_time); | |
d3e2ba59 JD |
296 | } |
297 | ||
c5b6f4f0 DG |
298 | if (ret < 0) { |
299 | goto error; | |
300 | } | |
301 | ||
20275fe8 | 302 | /* Receive response */ |
6151a90f | 303 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c5b6f4f0 DG |
304 | if (ret < 0) { |
305 | goto error; | |
306 | } | |
307 | ||
308 | reply.session_id = be64toh(reply.session_id); | |
309 | reply.ret_code = be32toh(reply.ret_code); | |
310 | ||
311 | /* Return session id or negative ret code. */ | |
312 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
313 | ret = -1; |
314 | ERR("Relayd create session replied error %d", reply.ret_code); | |
c5b6f4f0 DG |
315 | goto error; |
316 | } else { | |
317 | ret = 0; | |
658f12fa | 318 | *relayd_session_id = reply.session_id; |
c5b6f4f0 DG |
319 | } |
320 | ||
321 | DBG("Relayd session created with id %" PRIu64, reply.session_id); | |
322 | ||
323 | error: | |
324 | return ret; | |
325 | } | |
326 | ||
2f21a469 JR |
327 | static int relayd_add_stream_2_1(struct lttcomm_relayd_sock *rsock, |
328 | const char *channel_name, const char *pathname) | |
329 | { | |
330 | int ret; | |
331 | struct lttcomm_relayd_add_stream msg; | |
332 | ||
333 | memset(&msg, 0, sizeof(msg)); | |
334 | if (lttng_strncpy(msg.channel_name, channel_name, | |
335 | sizeof(msg.channel_name))) { | |
336 | ret = -1; | |
337 | goto error; | |
338 | } | |
339 | ||
340 | if (lttng_strncpy(msg.pathname, pathname, | |
341 | sizeof(msg.pathname))) { | |
342 | ret = -1; | |
343 | goto error; | |
344 | } | |
345 | ||
346 | /* Send command */ | |
347 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
348 | if (ret < 0) { | |
349 | ret = -1; | |
350 | goto error; | |
351 | } | |
352 | ret = 0; | |
353 | error: | |
354 | return ret; | |
355 | } | |
356 | ||
357 | static int relayd_add_stream_2_2(struct lttcomm_relayd_sock *rsock, | |
358 | const char *channel_name, const char *pathname, | |
359 | uint64_t tracefile_size, uint64_t tracefile_count) | |
360 | { | |
361 | int ret; | |
362 | struct lttcomm_relayd_add_stream_2_2 msg; | |
363 | ||
364 | memset(&msg, 0, sizeof(msg)); | |
365 | /* Compat with relayd 2.2 to 2.10 */ | |
366 | if (lttng_strncpy(msg.channel_name, channel_name, | |
367 | sizeof(msg.channel_name))) { | |
368 | ret = -1; | |
369 | goto error; | |
370 | } | |
371 | if (lttng_strncpy(msg.pathname, pathname, | |
372 | sizeof(msg.pathname))) { | |
373 | ret = -1; | |
374 | goto error; | |
375 | } | |
376 | msg.tracefile_size = htobe64(tracefile_size); | |
377 | msg.tracefile_count = htobe64(tracefile_count); | |
378 | ||
379 | /* Send command */ | |
380 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
381 | if (ret < 0) { | |
382 | goto error; | |
383 | } | |
384 | ret = 0; | |
385 | error: | |
386 | return ret; | |
387 | } | |
388 | ||
389 | static int relayd_add_stream_2_11(struct lttcomm_relayd_sock *rsock, | |
390 | const char *channel_name, const char *pathname, | |
b00e554e JG |
391 | uint64_t tracefile_size, uint64_t tracefile_count, |
392 | uint64_t trace_archive_id) | |
2f21a469 JR |
393 | { |
394 | int ret; | |
395 | struct lttcomm_relayd_add_stream_2_11 *msg = NULL; | |
396 | size_t channel_name_len; | |
397 | size_t pathname_len; | |
398 | size_t msg_length; | |
399 | ||
400 | /* The two names are sent with a '\0' delimiter between them. */ | |
401 | channel_name_len = strlen(channel_name) + 1; | |
402 | pathname_len = strlen(pathname) + 1; | |
403 | ||
404 | msg_length = sizeof(*msg) + channel_name_len + pathname_len; | |
405 | msg = zmalloc(msg_length); | |
406 | if (!msg) { | |
407 | PERROR("zmalloc add_stream_2_11 command message"); | |
408 | ret = -1; | |
409 | goto error; | |
410 | } | |
411 | ||
412 | assert(channel_name_len <= UINT32_MAX); | |
413 | msg->channel_name_len = htobe32(channel_name_len); | |
414 | ||
415 | assert(pathname_len <= UINT32_MAX); | |
416 | msg->pathname_len = htobe32(pathname_len); | |
417 | ||
418 | if (lttng_strncpy(msg->names, channel_name, channel_name_len)) { | |
419 | ret = -1; | |
420 | goto error; | |
421 | } | |
422 | if (lttng_strncpy(msg->names + channel_name_len, pathname, pathname_len)) { | |
423 | ret = -1; | |
424 | goto error; | |
425 | } | |
426 | ||
427 | msg->tracefile_size = htobe64(tracefile_size); | |
428 | msg->tracefile_count = htobe64(tracefile_count); | |
348a81dc | 429 | msg->trace_chunk_id = htobe64(trace_archive_id); |
2f21a469 JR |
430 | |
431 | /* Send command */ | |
432 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) msg, msg_length, 0); | |
433 | if (ret < 0) { | |
434 | goto error; | |
435 | } | |
436 | ret = 0; | |
437 | error: | |
438 | free(msg); | |
439 | return ret; | |
440 | } | |
441 | ||
00e2e675 DG |
442 | /* |
443 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
444 | * | |
445 | * On success return 0 else return ret_code negative value. | |
446 | */ | |
6151a90f | 447 | int relayd_add_stream(struct lttcomm_relayd_sock *rsock, const char *channel_name, |
0f907de1 | 448 | const char *pathname, uint64_t *stream_id, |
0b50e4b3 | 449 | uint64_t tracefile_size, uint64_t tracefile_count, |
d2956687 | 450 | struct lttng_trace_chunk *trace_chunk) |
00e2e675 DG |
451 | { |
452 | int ret; | |
00e2e675 DG |
453 | struct lttcomm_relayd_status_stream reply; |
454 | ||
455 | /* Code flow error. Safety net. */ | |
6151a90f | 456 | assert(rsock); |
00e2e675 DG |
457 | assert(channel_name); |
458 | assert(pathname); | |
459 | ||
460 | DBG("Relayd adding stream for channel name %s", channel_name); | |
461 | ||
0f907de1 JD |
462 | /* Compat with relayd 2.1 */ |
463 | if (rsock->minor == 1) { | |
2f21a469 | 464 | /* For 2.1 */ |
d2956687 | 465 | assert(!trace_chunk); |
2f21a469 JR |
466 | ret = relayd_add_stream_2_1(rsock, channel_name, pathname); |
467 | ||
468 | } else if (rsock->minor > 1 && rsock->minor < 11) { | |
469 | /* From 2.2 to 2.10 */ | |
d2956687 | 470 | assert(!trace_chunk); |
2f21a469 JR |
471 | ret = relayd_add_stream_2_2(rsock, channel_name, pathname, |
472 | tracefile_size, tracefile_count); | |
0f907de1 | 473 | } else { |
d2956687 JG |
474 | enum lttng_trace_chunk_status chunk_status; |
475 | uint64_t chunk_id; | |
476 | ||
477 | assert(trace_chunk); | |
478 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, | |
479 | &chunk_id); | |
480 | assert(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); | |
481 | ||
2f21a469 JR |
482 | /* From 2.11 to ...*/ |
483 | ret = relayd_add_stream_2_11(rsock, channel_name, pathname, | |
b00e554e | 484 | tracefile_size, tracefile_count, |
d2956687 | 485 | chunk_id); |
2f21a469 | 486 | } |
0f907de1 | 487 | |
2f21a469 JR |
488 | if (ret) { |
489 | ret = -1; | |
490 | goto error; | |
00e2e675 DG |
491 | } |
492 | ||
633d0084 | 493 | /* Waiting for reply */ |
6151a90f | 494 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
00e2e675 DG |
495 | if (ret < 0) { |
496 | goto error; | |
497 | } | |
498 | ||
499 | /* Back to host bytes order. */ | |
500 | reply.handle = be64toh(reply.handle); | |
501 | reply.ret_code = be32toh(reply.ret_code); | |
502 | ||
503 | /* Return session id or negative ret code. */ | |
f73fabfd | 504 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
505 | ret = -1; |
506 | ERR("Relayd add stream replied error %d", reply.ret_code); | |
00e2e675 DG |
507 | } else { |
508 | /* Success */ | |
509 | ret = 0; | |
510 | *stream_id = reply.handle; | |
511 | } | |
512 | ||
77c7c900 | 513 | DBG("Relayd stream added successfully with handle %" PRIu64, |
2f21a469 | 514 | reply.handle); |
00e2e675 DG |
515 | |
516 | error: | |
517 | return ret; | |
518 | } | |
519 | ||
a4baae1b JD |
520 | /* |
521 | * Inform the relay that all the streams for the current channel has been sent. | |
522 | * | |
523 | * On success return 0 else return ret_code negative value. | |
524 | */ | |
525 | int relayd_streams_sent(struct lttcomm_relayd_sock *rsock) | |
526 | { | |
527 | int ret; | |
528 | struct lttcomm_relayd_generic_reply reply; | |
529 | ||
530 | /* Code flow error. Safety net. */ | |
531 | assert(rsock); | |
532 | ||
533 | DBG("Relayd sending streams sent."); | |
534 | ||
535 | /* This feature was introduced in 2.4, ignore it for earlier versions. */ | |
536 | if (rsock->minor < 4) { | |
537 | ret = 0; | |
538 | goto end; | |
539 | } | |
540 | ||
541 | /* Send command */ | |
542 | ret = send_command(rsock, RELAYD_STREAMS_SENT, NULL, 0, 0); | |
543 | if (ret < 0) { | |
544 | goto error; | |
545 | } | |
546 | ||
547 | /* Waiting for reply */ | |
548 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
549 | if (ret < 0) { | |
550 | goto error; | |
551 | } | |
552 | ||
553 | /* Back to host bytes order. */ | |
554 | reply.ret_code = be32toh(reply.ret_code); | |
555 | ||
556 | /* Return session id or negative ret code. */ | |
557 | if (reply.ret_code != LTTNG_OK) { | |
558 | ret = -1; | |
559 | ERR("Relayd streams sent replied error %d", reply.ret_code); | |
560 | goto error; | |
561 | } else { | |
562 | /* Success */ | |
563 | ret = 0; | |
564 | } | |
565 | ||
566 | DBG("Relayd streams sent success"); | |
567 | ||
568 | error: | |
569 | end: | |
570 | return ret; | |
571 | } | |
572 | ||
00e2e675 DG |
573 | /* |
574 | * Check version numbers on the relayd. | |
d4519fa3 JD |
575 | * If major versions are compatible, we assign minor_to_use to the |
576 | * minor version of the procotol we are going to use for this session. | |
00e2e675 | 577 | * |
67d5aa28 JD |
578 | * Return 0 if the two daemons are compatible, LTTNG_ERR_RELAYD_VERSION_FAIL |
579 | * otherwise, or a negative value on network errors. | |
00e2e675 | 580 | */ |
6151a90f | 581 | int relayd_version_check(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
582 | { |
583 | int ret; | |
092b6259 | 584 | struct lttcomm_relayd_version msg; |
00e2e675 DG |
585 | |
586 | /* Code flow error. Safety net. */ | |
6151a90f | 587 | assert(rsock); |
00e2e675 | 588 | |
6151a90f JD |
589 | DBG("Relayd version check for major.minor %u.%u", rsock->major, |
590 | rsock->minor); | |
00e2e675 | 591 | |
53efb85a | 592 | memset(&msg, 0, sizeof(msg)); |
092b6259 | 593 | /* Prepare network byte order before transmission. */ |
6151a90f JD |
594 | msg.major = htobe32(rsock->major); |
595 | msg.minor = htobe32(rsock->minor); | |
092b6259 | 596 | |
00e2e675 | 597 | /* Send command */ |
6151a90f | 598 | ret = send_command(rsock, RELAYD_VERSION, (void *) &msg, sizeof(msg), 0); |
00e2e675 DG |
599 | if (ret < 0) { |
600 | goto error; | |
601 | } | |
602 | ||
20275fe8 | 603 | /* Receive response */ |
6151a90f | 604 | ret = recv_reply(rsock, (void *) &msg, sizeof(msg)); |
00e2e675 DG |
605 | if (ret < 0) { |
606 | goto error; | |
607 | } | |
608 | ||
609 | /* Set back to host bytes order */ | |
092b6259 DG |
610 | msg.major = be32toh(msg.major); |
611 | msg.minor = be32toh(msg.minor); | |
612 | ||
613 | /* | |
614 | * Only validate the major version. If the other side is higher, | |
615 | * communication is not possible. Only major version equal can talk to each | |
616 | * other. If the minor version differs, the lowest version is used by both | |
617 | * sides. | |
092b6259 | 618 | */ |
6151a90f | 619 | if (msg.major != rsock->major) { |
d4519fa3 | 620 | /* Not compatible */ |
67d5aa28 | 621 | ret = LTTNG_ERR_RELAYD_VERSION_FAIL; |
d4519fa3 | 622 | DBG2("Relayd version is NOT compatible. Relayd version %u != %u (us)", |
6151a90f | 623 | msg.major, rsock->major); |
092b6259 | 624 | goto error; |
00e2e675 DG |
625 | } |
626 | ||
092b6259 | 627 | /* |
6151a90f JD |
628 | * If the relayd's minor version is higher, it will adapt to our version so |
629 | * we can continue to use the latest relayd communication data structure. | |
630 | * If the received minor version is higher, the relayd should adapt to us. | |
092b6259 | 631 | */ |
6151a90f JD |
632 | if (rsock->minor > msg.minor) { |
633 | rsock->minor = msg.minor; | |
d4519fa3 | 634 | } |
092b6259 | 635 | |
d4519fa3 JD |
636 | /* Version number compatible */ |
637 | DBG2("Relayd version is compatible, using protocol version %u.%u", | |
6151a90f | 638 | rsock->major, rsock->minor); |
d4519fa3 | 639 | ret = 0; |
00e2e675 DG |
640 | |
641 | error: | |
642 | return ret; | |
643 | } | |
644 | ||
00e2e675 DG |
645 | /* |
646 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
647 | * | |
648 | * On success return 0 else return ret_code negative value. | |
649 | */ | |
6151a90f | 650 | int relayd_send_metadata(struct lttcomm_relayd_sock *rsock, size_t len) |
00e2e675 DG |
651 | { |
652 | int ret; | |
653 | ||
654 | /* Code flow error. Safety net. */ | |
6151a90f | 655 | assert(rsock); |
00e2e675 | 656 | |
77c7c900 | 657 | DBG("Relayd sending metadata of size %zu", len); |
00e2e675 DG |
658 | |
659 | /* Send command */ | |
6151a90f | 660 | ret = send_command(rsock, RELAYD_SEND_METADATA, NULL, len, 0); |
00e2e675 DG |
661 | if (ret < 0) { |
662 | goto error; | |
663 | } | |
664 | ||
665 | DBG2("Relayd metadata added successfully"); | |
666 | ||
667 | /* | |
668 | * After that call, the metadata data MUST be sent to the relayd so the | |
669 | * receive size on the other end matches the len of the metadata packet | |
633d0084 | 670 | * header. This is why we don't wait for a reply here. |
00e2e675 DG |
671 | */ |
672 | ||
673 | error: | |
674 | return ret; | |
675 | } | |
676 | ||
677 | /* | |
6151a90f | 678 | * Connect to relay daemon with an allocated lttcomm_relayd_sock. |
00e2e675 | 679 | */ |
6151a90f | 680 | int relayd_connect(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
681 | { |
682 | /* Code flow error. Safety net. */ | |
6151a90f | 683 | assert(rsock); |
00e2e675 | 684 | |
f96e4545 MD |
685 | if (!rsock->sock.ops) { |
686 | /* | |
687 | * Attempting a connect on a non-initialized socket. | |
688 | */ | |
689 | return -ECONNRESET; | |
690 | } | |
691 | ||
00e2e675 DG |
692 | DBG3("Relayd connect ..."); |
693 | ||
6151a90f | 694 | return rsock->sock.ops->connect(&rsock->sock); |
00e2e675 DG |
695 | } |
696 | ||
697 | /* | |
6151a90f | 698 | * Close relayd socket with an allocated lttcomm_relayd_sock. |
ffe60014 DG |
699 | * |
700 | * If no socket operations are found, simply return 0 meaning that everything | |
701 | * is fine. Without operations, the socket can not possibly be opened or used. | |
702 | * This is possible if the socket was allocated but not created. However, the | |
703 | * caller could simply use it to store a valid file descriptor for instance | |
704 | * passed over a Unix socket and call this to cleanup but still without a valid | |
705 | * ops pointer. | |
706 | * | |
707 | * Return the close returned value. On error, a negative value is usually | |
708 | * returned back from close(2). | |
00e2e675 | 709 | */ |
6151a90f | 710 | int relayd_close(struct lttcomm_relayd_sock *rsock) |
00e2e675 | 711 | { |
ffe60014 DG |
712 | int ret; |
713 | ||
00e2e675 | 714 | /* Code flow error. Safety net. */ |
6151a90f | 715 | assert(rsock); |
00e2e675 | 716 | |
ffe60014 | 717 | /* An invalid fd is fine, return success. */ |
6151a90f | 718 | if (rsock->sock.fd < 0) { |
ffe60014 DG |
719 | ret = 0; |
720 | goto end; | |
721 | } | |
722 | ||
6151a90f | 723 | DBG3("Relayd closing socket %d", rsock->sock.fd); |
00e2e675 | 724 | |
6151a90f JD |
725 | if (rsock->sock.ops) { |
726 | ret = rsock->sock.ops->close(&rsock->sock); | |
ffe60014 DG |
727 | } else { |
728 | /* Default call if no specific ops found. */ | |
6151a90f | 729 | ret = close(rsock->sock.fd); |
ffe60014 DG |
730 | if (ret < 0) { |
731 | PERROR("relayd_close default close"); | |
732 | } | |
733 | } | |
f96e4545 | 734 | rsock->sock.fd = -1; |
ffe60014 DG |
735 | |
736 | end: | |
737 | return ret; | |
00e2e675 DG |
738 | } |
739 | ||
740 | /* | |
741 | * Send data header structure to the relayd. | |
742 | */ | |
6151a90f | 743 | int relayd_send_data_hdr(struct lttcomm_relayd_sock *rsock, |
00e2e675 DG |
744 | struct lttcomm_relayd_data_hdr *hdr, size_t size) |
745 | { | |
746 | int ret; | |
747 | ||
748 | /* Code flow error. Safety net. */ | |
6151a90f | 749 | assert(rsock); |
00e2e675 DG |
750 | assert(hdr); |
751 | ||
f96e4545 MD |
752 | if (rsock->sock.fd < 0) { |
753 | return -ECONNRESET; | |
754 | } | |
755 | ||
8fd623e0 | 756 | DBG3("Relayd sending data header of size %zu", size); |
00e2e675 DG |
757 | |
758 | /* Again, safety net */ | |
759 | if (size == 0) { | |
760 | size = sizeof(struct lttcomm_relayd_data_hdr); | |
761 | } | |
762 | ||
763 | /* Only send data header. */ | |
6151a90f | 764 | ret = rsock->sock.ops->sendmsg(&rsock->sock, hdr, size, 0); |
00e2e675 | 765 | if (ret < 0) { |
8994307f | 766 | ret = -errno; |
00e2e675 DG |
767 | goto error; |
768 | } | |
769 | ||
770 | /* | |
771 | * The data MUST be sent right after that command for the receive on the | |
772 | * other end to match the size in the header. | |
773 | */ | |
774 | ||
775 | error: | |
776 | return ret; | |
777 | } | |
173af62f DG |
778 | |
779 | /* | |
780 | * Send close stream command to the relayd. | |
781 | */ | |
6151a90f | 782 | int relayd_send_close_stream(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
173af62f DG |
783 | uint64_t last_net_seq_num) |
784 | { | |
785 | int ret; | |
786 | struct lttcomm_relayd_close_stream msg; | |
787 | struct lttcomm_relayd_generic_reply reply; | |
788 | ||
789 | /* Code flow error. Safety net. */ | |
6151a90f | 790 | assert(rsock); |
173af62f | 791 | |
77c7c900 | 792 | DBG("Relayd closing stream id %" PRIu64, stream_id); |
173af62f | 793 | |
53efb85a | 794 | memset(&msg, 0, sizeof(msg)); |
173af62f DG |
795 | msg.stream_id = htobe64(stream_id); |
796 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
797 | ||
798 | /* Send command */ | |
6151a90f | 799 | ret = send_command(rsock, RELAYD_CLOSE_STREAM, (void *) &msg, sizeof(msg), 0); |
173af62f DG |
800 | if (ret < 0) { |
801 | goto error; | |
802 | } | |
803 | ||
20275fe8 | 804 | /* Receive response */ |
6151a90f | 805 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
173af62f DG |
806 | if (ret < 0) { |
807 | goto error; | |
808 | } | |
809 | ||
810 | reply.ret_code = be32toh(reply.ret_code); | |
811 | ||
812 | /* Return session id or negative ret code. */ | |
f73fabfd | 813 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
814 | ret = -1; |
815 | ERR("Relayd close stream replied error %d", reply.ret_code); | |
173af62f DG |
816 | } else { |
817 | /* Success */ | |
818 | ret = 0; | |
819 | } | |
820 | ||
77c7c900 | 821 | DBG("Relayd close stream id %" PRIu64 " successfully", stream_id); |
173af62f DG |
822 | |
823 | error: | |
824 | return ret; | |
825 | } | |
c8f59ee5 DG |
826 | |
827 | /* | |
828 | * Check for data availability for a given stream id. | |
829 | * | |
6d805429 | 830 | * Return 0 if NOT pending, 1 if so and a negative value on error. |
c8f59ee5 | 831 | */ |
6151a90f | 832 | int relayd_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
c8f59ee5 DG |
833 | uint64_t last_net_seq_num) |
834 | { | |
835 | int ret; | |
6d805429 | 836 | struct lttcomm_relayd_data_pending msg; |
c8f59ee5 DG |
837 | struct lttcomm_relayd_generic_reply reply; |
838 | ||
839 | /* Code flow error. Safety net. */ | |
6151a90f | 840 | assert(rsock); |
c8f59ee5 | 841 | |
6d805429 | 842 | DBG("Relayd data pending for stream id %" PRIu64, stream_id); |
c8f59ee5 | 843 | |
53efb85a | 844 | memset(&msg, 0, sizeof(msg)); |
c8f59ee5 DG |
845 | msg.stream_id = htobe64(stream_id); |
846 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
847 | ||
848 | /* Send command */ | |
6151a90f | 849 | ret = send_command(rsock, RELAYD_DATA_PENDING, (void *) &msg, |
c8f59ee5 DG |
850 | sizeof(msg), 0); |
851 | if (ret < 0) { | |
852 | goto error; | |
853 | } | |
854 | ||
20275fe8 | 855 | /* Receive response */ |
6151a90f | 856 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
857 | if (ret < 0) { |
858 | goto error; | |
859 | } | |
860 | ||
861 | reply.ret_code = be32toh(reply.ret_code); | |
862 | ||
863 | /* Return session id or negative ret code. */ | |
864 | if (reply.ret_code >= LTTNG_OK) { | |
bb63afd9 | 865 | ERR("Relayd data pending replied error %d", reply.ret_code); |
c8f59ee5 DG |
866 | } |
867 | ||
868 | /* At this point, the ret code is either 1 or 0 */ | |
869 | ret = reply.ret_code; | |
870 | ||
6d805429 | 871 | DBG("Relayd data is %s pending for stream id %" PRIu64, |
9dd26bb9 | 872 | ret == 1 ? "" : "NOT", stream_id); |
c8f59ee5 DG |
873 | |
874 | error: | |
875 | return ret; | |
876 | } | |
877 | ||
878 | /* | |
879 | * Check on the relayd side for a quiescent state on the control socket. | |
880 | */ | |
6151a90f | 881 | int relayd_quiescent_control(struct lttcomm_relayd_sock *rsock, |
ad7051c0 | 882 | uint64_t metadata_stream_id) |
c8f59ee5 DG |
883 | { |
884 | int ret; | |
ad7051c0 | 885 | struct lttcomm_relayd_quiescent_control msg; |
c8f59ee5 DG |
886 | struct lttcomm_relayd_generic_reply reply; |
887 | ||
888 | /* Code flow error. Safety net. */ | |
6151a90f | 889 | assert(rsock); |
c8f59ee5 DG |
890 | |
891 | DBG("Relayd checking quiescent control state"); | |
892 | ||
53efb85a | 893 | memset(&msg, 0, sizeof(msg)); |
ad7051c0 DG |
894 | msg.stream_id = htobe64(metadata_stream_id); |
895 | ||
c8f59ee5 | 896 | /* Send command */ |
6151a90f | 897 | ret = send_command(rsock, RELAYD_QUIESCENT_CONTROL, &msg, sizeof(msg), 0); |
c8f59ee5 DG |
898 | if (ret < 0) { |
899 | goto error; | |
900 | } | |
901 | ||
20275fe8 | 902 | /* Receive response */ |
6151a90f | 903 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
904 | if (ret < 0) { |
905 | goto error; | |
906 | } | |
907 | ||
908 | reply.ret_code = be32toh(reply.ret_code); | |
909 | ||
910 | /* Return session id or negative ret code. */ | |
911 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
912 | ret = -1; |
913 | ERR("Relayd quiescent control replied error %d", reply.ret_code); | |
c8f59ee5 DG |
914 | goto error; |
915 | } | |
916 | ||
917 | /* Control socket is quiescent */ | |
6d805429 | 918 | return 0; |
c8f59ee5 DG |
919 | |
920 | error: | |
921 | return ret; | |
922 | } | |
f7079f67 DG |
923 | |
924 | /* | |
925 | * Begin a data pending command for a specific session id. | |
926 | */ | |
6151a90f | 927 | int relayd_begin_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id) |
f7079f67 DG |
928 | { |
929 | int ret; | |
930 | struct lttcomm_relayd_begin_data_pending msg; | |
931 | struct lttcomm_relayd_generic_reply reply; | |
932 | ||
933 | /* Code flow error. Safety net. */ | |
6151a90f | 934 | assert(rsock); |
f7079f67 DG |
935 | |
936 | DBG("Relayd begin data pending"); | |
937 | ||
53efb85a | 938 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
939 | msg.session_id = htobe64(id); |
940 | ||
941 | /* Send command */ | |
6151a90f | 942 | ret = send_command(rsock, RELAYD_BEGIN_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
943 | if (ret < 0) { |
944 | goto error; | |
945 | } | |
946 | ||
20275fe8 | 947 | /* Receive response */ |
6151a90f | 948 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
949 | if (ret < 0) { |
950 | goto error; | |
951 | } | |
952 | ||
953 | reply.ret_code = be32toh(reply.ret_code); | |
954 | ||
955 | /* Return session id or negative ret code. */ | |
956 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
957 | ret = -1; |
958 | ERR("Relayd begin data pending replied error %d", reply.ret_code); | |
f7079f67 DG |
959 | goto error; |
960 | } | |
961 | ||
962 | return 0; | |
963 | ||
964 | error: | |
965 | return ret; | |
966 | } | |
967 | ||
968 | /* | |
969 | * End a data pending command for a specific session id. | |
970 | * | |
971 | * Return 0 on success and set is_data_inflight to 0 if no data is being | |
972 | * streamed or 1 if it is the case. | |
973 | */ | |
6151a90f | 974 | int relayd_end_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id, |
f7079f67 DG |
975 | unsigned int *is_data_inflight) |
976 | { | |
af6c30b5 | 977 | int ret, recv_ret; |
f7079f67 DG |
978 | struct lttcomm_relayd_end_data_pending msg; |
979 | struct lttcomm_relayd_generic_reply reply; | |
980 | ||
981 | /* Code flow error. Safety net. */ | |
6151a90f | 982 | assert(rsock); |
f7079f67 DG |
983 | |
984 | DBG("Relayd end data pending"); | |
985 | ||
53efb85a | 986 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
987 | msg.session_id = htobe64(id); |
988 | ||
989 | /* Send command */ | |
6151a90f | 990 | ret = send_command(rsock, RELAYD_END_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
991 | if (ret < 0) { |
992 | goto error; | |
993 | } | |
994 | ||
20275fe8 | 995 | /* Receive response */ |
6151a90f | 996 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
997 | if (ret < 0) { |
998 | goto error; | |
999 | } | |
1000 | ||
af6c30b5 DG |
1001 | recv_ret = be32toh(reply.ret_code); |
1002 | if (recv_ret < 0) { | |
1003 | ret = recv_ret; | |
f7079f67 DG |
1004 | goto error; |
1005 | } | |
1006 | ||
af6c30b5 | 1007 | *is_data_inflight = recv_ret; |
f7079f67 | 1008 | |
af6c30b5 | 1009 | DBG("Relayd end data pending is data inflight: %d", recv_ret); |
f7079f67 DG |
1010 | |
1011 | return 0; | |
1012 | ||
1013 | error: | |
1014 | return ret; | |
1015 | } | |
1c20f0e2 JD |
1016 | |
1017 | /* | |
1018 | * Send index to the relayd. | |
1019 | */ | |
1020 | int relayd_send_index(struct lttcomm_relayd_sock *rsock, | |
50adc264 | 1021 | struct ctf_packet_index *index, uint64_t relay_stream_id, |
1c20f0e2 JD |
1022 | uint64_t net_seq_num) |
1023 | { | |
1024 | int ret; | |
1025 | struct lttcomm_relayd_index msg; | |
1026 | struct lttcomm_relayd_generic_reply reply; | |
1027 | ||
1028 | /* Code flow error. Safety net. */ | |
1029 | assert(rsock); | |
1030 | ||
1031 | if (rsock->minor < 4) { | |
1032 | DBG("Not sending indexes before protocol 2.4"); | |
1033 | ret = 0; | |
1034 | goto error; | |
1035 | } | |
1036 | ||
1037 | DBG("Relayd sending index for stream ID %" PRIu64, relay_stream_id); | |
1038 | ||
53efb85a | 1039 | memset(&msg, 0, sizeof(msg)); |
1c20f0e2 JD |
1040 | msg.relay_stream_id = htobe64(relay_stream_id); |
1041 | msg.net_seq_num = htobe64(net_seq_num); | |
1042 | ||
1043 | /* The index is already in big endian. */ | |
1044 | msg.packet_size = index->packet_size; | |
1045 | msg.content_size = index->content_size; | |
1046 | msg.timestamp_begin = index->timestamp_begin; | |
1047 | msg.timestamp_end = index->timestamp_end; | |
1048 | msg.events_discarded = index->events_discarded; | |
1049 | msg.stream_id = index->stream_id; | |
1050 | ||
234cd636 JD |
1051 | if (rsock->minor >= 8) { |
1052 | msg.stream_instance_id = index->stream_instance_id; | |
1053 | msg.packet_seq_num = index->packet_seq_num; | |
1054 | } | |
1055 | ||
1c20f0e2 | 1056 | /* Send command */ |
f8f3885c MD |
1057 | ret = send_command(rsock, RELAYD_SEND_INDEX, &msg, |
1058 | lttcomm_relayd_index_len(lttng_to_index_major(rsock->major, | |
1059 | rsock->minor), | |
1060 | lttng_to_index_minor(rsock->major, rsock->minor)), | |
1061 | 0); | |
1c20f0e2 JD |
1062 | if (ret < 0) { |
1063 | goto error; | |
1064 | } | |
1065 | ||
1066 | /* Receive response */ | |
1067 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1068 | if (ret < 0) { | |
1069 | goto error; | |
1070 | } | |
1071 | ||
1072 | reply.ret_code = be32toh(reply.ret_code); | |
1073 | ||
1074 | /* Return session id or negative ret code. */ | |
1075 | if (reply.ret_code != LTTNG_OK) { | |
1076 | ret = -1; | |
1077 | ERR("Relayd send index replied error %d", reply.ret_code); | |
1078 | } else { | |
1079 | /* Success */ | |
1080 | ret = 0; | |
1081 | } | |
1082 | ||
1083 | error: | |
1084 | return ret; | |
1085 | } | |
93ec662e JD |
1086 | |
1087 | /* | |
1088 | * Ask the relay to reset the metadata trace file (regeneration). | |
1089 | */ | |
1090 | int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, | |
1091 | uint64_t stream_id, uint64_t version) | |
1092 | { | |
1093 | int ret; | |
1094 | struct lttcomm_relayd_reset_metadata msg; | |
1095 | struct lttcomm_relayd_generic_reply reply; | |
1096 | ||
1097 | /* Code flow error. Safety net. */ | |
1098 | assert(rsock); | |
1099 | ||
1100 | /* Should have been prevented by the sessiond. */ | |
1101 | if (rsock->minor < 8) { | |
1102 | ERR("Metadata regeneration unsupported before 2.8"); | |
1103 | ret = -1; | |
1104 | goto error; | |
1105 | } | |
1106 | ||
1107 | DBG("Relayd reset metadata stream id %" PRIu64, stream_id); | |
1108 | ||
1109 | memset(&msg, 0, sizeof(msg)); | |
1110 | msg.stream_id = htobe64(stream_id); | |
1111 | msg.version = htobe64(version); | |
1112 | ||
1113 | /* Send command */ | |
1114 | ret = send_command(rsock, RELAYD_RESET_METADATA, (void *) &msg, sizeof(msg), 0); | |
1115 | if (ret < 0) { | |
1116 | goto error; | |
1117 | } | |
1118 | ||
1119 | /* Receive response */ | |
1120 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1121 | if (ret < 0) { | |
1122 | goto error; | |
1123 | } | |
1124 | ||
1125 | reply.ret_code = be32toh(reply.ret_code); | |
1126 | ||
1127 | /* Return session id or negative ret code. */ | |
1128 | if (reply.ret_code != LTTNG_OK) { | |
1129 | ret = -1; | |
1130 | ERR("Relayd reset metadata replied error %d", reply.ret_code); | |
1131 | } else { | |
1132 | /* Success */ | |
1133 | ret = 0; | |
1134 | } | |
1135 | ||
1136 | DBG("Relayd reset metadata stream id %" PRIu64 " successfully", stream_id); | |
1137 | ||
1138 | error: | |
1139 | return ret; | |
1140 | } | |
a1ae2ea5 | 1141 | |
c35f9726 | 1142 | int relayd_rotate_streams(struct lttcomm_relayd_sock *sock, |
ebb29c10 | 1143 | unsigned int stream_count, const uint64_t *new_chunk_id, |
c35f9726 | 1144 | const struct relayd_stream_rotation_position *positions) |
d73bf3d7 JD |
1145 | { |
1146 | int ret; | |
c35f9726 JG |
1147 | unsigned int i; |
1148 | struct lttng_dynamic_buffer payload; | |
1149 | struct lttcomm_relayd_generic_reply reply = {}; | |
1150 | const struct lttcomm_relayd_rotate_streams msg = { | |
1151 | .stream_count = htobe32((uint32_t) stream_count), | |
1152 | .new_chunk_id = (typeof(msg.new_chunk_id)) { | |
1153 | .is_set = !!new_chunk_id, | |
1154 | .value = htobe64(new_chunk_id ? *new_chunk_id : 0), | |
1155 | }, | |
1156 | }; | |
1157 | char new_chunk_id_buf[MAX_INT_DEC_LEN(*new_chunk_id)] = {}; | |
1158 | const char *new_chunk_id_str; | |
d73bf3d7 | 1159 | |
c35f9726 | 1160 | lttng_dynamic_buffer_init(&payload); |
d73bf3d7 | 1161 | |
c35f9726 JG |
1162 | /* Code flow error. Safety net. */ |
1163 | assert(sock); | |
d73bf3d7 | 1164 | |
c35f9726 JG |
1165 | if (new_chunk_id) { |
1166 | ret = snprintf(new_chunk_id_buf, sizeof(new_chunk_id_buf), | |
1167 | "%" PRIu64, *new_chunk_id); | |
1168 | if (ret == -1 || ret >= sizeof(new_chunk_id_buf)) { | |
1169 | new_chunk_id_str = "formatting error"; | |
1170 | } else { | |
1171 | new_chunk_id_str = new_chunk_id_buf; | |
1172 | } | |
1173 | } else { | |
1174 | new_chunk_id_str = "none"; | |
d73bf3d7 JD |
1175 | } |
1176 | ||
c35f9726 JG |
1177 | DBG("Preparing \"rotate streams\" command payload: new_chunk_id = %s, stream_count = %u", |
1178 | new_chunk_id_str, stream_count); | |
d73bf3d7 | 1179 | |
c35f9726 JG |
1180 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); |
1181 | if (ret) { | |
1182 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
d73bf3d7 JD |
1183 | goto error; |
1184 | } | |
1185 | ||
c35f9726 JG |
1186 | for (i = 0; i < stream_count; i++) { |
1187 | const struct relayd_stream_rotation_position *position = | |
1188 | &positions[i]; | |
1189 | const struct lttcomm_relayd_stream_rotation_position comm_position = { | |
1190 | .stream_id = htobe64(position->stream_id), | |
1191 | .rotate_at_seq_num = htobe64( | |
1192 | position->rotate_at_seq_num), | |
1193 | }; | |
1194 | ||
1195 | DBG("Rotate stream %" PRIu64 "at sequence number %" PRIu64, | |
1196 | position->stream_id, | |
1197 | position->rotate_at_seq_num); | |
1198 | ret = lttng_dynamic_buffer_append(&payload, &comm_position, | |
1199 | sizeof(comm_position)); | |
1200 | if (ret) { | |
1201 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
1202 | goto error; | |
1203 | } | |
1204 | } | |
d73bf3d7 JD |
1205 | |
1206 | /* Send command. */ | |
c35f9726 JG |
1207 | ret = send_command(sock, RELAYD_ROTATE_STREAMS, payload.data, |
1208 | payload.size, 0); | |
d73bf3d7 | 1209 | if (ret < 0) { |
c35f9726 | 1210 | ERR("Failed to send \"rotate stream\" command"); |
d73bf3d7 JD |
1211 | goto error; |
1212 | } | |
1213 | ||
1214 | /* Receive response. */ | |
c35f9726 | 1215 | ret = recv_reply(sock, &reply, sizeof(reply)); |
d73bf3d7 | 1216 | if (ret < 0) { |
c35f9726 | 1217 | ERR("Failed to receive \"rotate streams\" command reply"); |
d73bf3d7 JD |
1218 | goto error; |
1219 | } | |
1220 | ||
1221 | reply.ret_code = be32toh(reply.ret_code); | |
d73bf3d7 JD |
1222 | if (reply.ret_code != LTTNG_OK) { |
1223 | ret = -1; | |
c35f9726 | 1224 | ERR("Relayd rotate streams replied error %d", reply.ret_code); |
d73bf3d7 JD |
1225 | } else { |
1226 | /* Success. */ | |
1227 | ret = 0; | |
c35f9726 | 1228 | DBG("Relayd rotated streams successfully"); |
d73bf3d7 JD |
1229 | } |
1230 | ||
1231 | error: | |
c35f9726 | 1232 | lttng_dynamic_buffer_reset(&payload); |
d73bf3d7 JD |
1233 | return ret; |
1234 | } | |
e5add6d0 JG |
1235 | |
1236 | int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock, | |
1237 | struct lttng_trace_chunk *chunk) | |
1238 | { | |
1239 | int ret = 0; | |
1240 | enum lttng_trace_chunk_status status; | |
1241 | struct lttcomm_relayd_create_trace_chunk msg = {}; | |
1242 | struct lttcomm_relayd_generic_reply reply = {}; | |
1243 | struct lttng_dynamic_buffer payload; | |
1244 | uint64_t chunk_id; | |
1245 | time_t creation_timestamp; | |
1246 | const char *chunk_name; | |
1247 | size_t chunk_name_length; | |
913a542b | 1248 | bool overridden_name; |
e5add6d0 JG |
1249 | |
1250 | lttng_dynamic_buffer_init(&payload); | |
1251 | ||
1252 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); | |
1253 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1254 | ret = -1; | |
1255 | goto end; | |
1256 | } | |
1257 | ||
1258 | status = lttng_trace_chunk_get_creation_timestamp( | |
1259 | chunk, &creation_timestamp); | |
1260 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1261 | ret = -1; | |
1262 | goto end; | |
1263 | } | |
1264 | ||
1265 | status = lttng_trace_chunk_get_name( | |
913a542b | 1266 | chunk, &chunk_name, &overridden_name); |
e5add6d0 JG |
1267 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK && |
1268 | status != LTTNG_TRACE_CHUNK_STATUS_NONE) { | |
1269 | ret = -1; | |
1270 | goto end; | |
1271 | } | |
1272 | ||
913a542b | 1273 | chunk_name_length = overridden_name ? (strlen(chunk_name) + 1) : 0; |
e5add6d0 JG |
1274 | msg = (typeof(msg)){ |
1275 | .chunk_id = htobe64(chunk_id), | |
1276 | .creation_timestamp = htobe64((uint64_t) creation_timestamp), | |
1277 | .override_name_length = htobe32((uint32_t) chunk_name_length), | |
1278 | }; | |
1279 | ||
1280 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); | |
1281 | if (ret) { | |
1282 | goto end; | |
1283 | } | |
1284 | if (chunk_name_length) { | |
1285 | ret = lttng_dynamic_buffer_append( | |
1286 | &payload, chunk_name, chunk_name_length); | |
1287 | if (ret) { | |
1288 | goto end; | |
1289 | } | |
1290 | } | |
1291 | ||
bbc4768c JG |
1292 | ret = send_command(sock, RELAYD_CREATE_TRACE_CHUNK, payload.data, |
1293 | payload.size, 0); | |
e5add6d0 JG |
1294 | if (ret < 0) { |
1295 | ERR("Failed to send trace chunk creation command to relay daemon"); | |
1296 | goto end; | |
1297 | } | |
1298 | ||
1299 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1300 | if (ret < 0) { | |
1301 | ERR("Failed to receive relay daemon trace chunk creation command reply"); | |
1302 | goto end; | |
1303 | } | |
1304 | ||
1305 | reply.ret_code = be32toh(reply.ret_code); | |
1306 | if (reply.ret_code != LTTNG_OK) { | |
1307 | ret = -1; | |
1308 | ERR("Relayd trace chunk create replied error %d", | |
1309 | reply.ret_code); | |
1310 | } else { | |
1311 | ret = 0; | |
1312 | DBG("Relayd successfully created trace chunk: chunk_id = %" PRIu64, | |
1313 | chunk_id); | |
1314 | } | |
1315 | ||
1316 | end: | |
1317 | lttng_dynamic_buffer_reset(&payload); | |
1318 | return ret; | |
1319 | } | |
bbc4768c JG |
1320 | |
1321 | int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock, | |
1322 | struct lttng_trace_chunk *chunk) | |
1323 | { | |
1324 | int ret = 0; | |
1325 | enum lttng_trace_chunk_status status; | |
1326 | struct lttcomm_relayd_close_trace_chunk msg = {}; | |
1327 | struct lttcomm_relayd_generic_reply reply = {}; | |
1328 | uint64_t chunk_id; | |
1329 | time_t close_timestamp; | |
1330 | LTTNG_OPTIONAL(enum lttng_trace_chunk_command_type) close_command = {}; | |
1331 | ||
1332 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); | |
1333 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1334 | ERR("Failed to get trace chunk id"); | |
1335 | ret = -1; | |
1336 | goto end; | |
1337 | } | |
1338 | ||
1339 | status = lttng_trace_chunk_get_close_timestamp(chunk, &close_timestamp); | |
1340 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1341 | ERR("Failed to get trace chunk close timestamp"); | |
1342 | ret = -1; | |
1343 | goto end; | |
1344 | } | |
1345 | ||
1346 | status = lttng_trace_chunk_get_close_command(chunk, | |
1347 | &close_command.value); | |
1348 | switch (status) { | |
1349 | case LTTNG_TRACE_CHUNK_STATUS_OK: | |
1350 | close_command.is_set = 1; | |
1351 | break; | |
1352 | case LTTNG_TRACE_CHUNK_STATUS_NONE: | |
1353 | break; | |
1354 | default: | |
1355 | ERR("Failed to get trace chunk close command"); | |
1356 | ret = -1; | |
1357 | goto end; | |
1358 | } | |
1359 | ||
1360 | msg = (typeof(msg)){ | |
1361 | .chunk_id = htobe64(chunk_id), | |
1362 | .close_timestamp = htobe64((uint64_t) close_timestamp), | |
1363 | .close_command = { | |
1364 | .value = htobe32((uint32_t) close_command.value), | |
1365 | .is_set = close_command.is_set, | |
1366 | }, | |
1367 | }; | |
1368 | ||
1369 | ret = send_command(sock, RELAYD_CLOSE_TRACE_CHUNK, &msg, sizeof(msg), | |
1370 | 0); | |
1371 | if (ret < 0) { | |
1372 | ERR("Failed to send trace chunk close command to relay daemon"); | |
1373 | goto end; | |
1374 | } | |
1375 | ||
1376 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1377 | if (ret < 0) { | |
1378 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1379 | goto end; | |
1380 | } | |
1381 | ||
1382 | reply.ret_code = be32toh(reply.ret_code); | |
1383 | if (reply.ret_code != LTTNG_OK) { | |
1384 | ret = -1; | |
1385 | ERR("Relayd trace chunk close replied error %d", | |
1386 | reply.ret_code); | |
1387 | } else { | |
1388 | ret = 0; | |
1389 | DBG("Relayd successfully closed trace chunk: chunk_id = %" PRIu64, | |
1390 | chunk_id); | |
1391 | } | |
1392 | end: | |
1393 | return ret; | |
1394 | } | |
c35f9726 JG |
1395 | |
1396 | int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock, | |
1397 | uint64_t chunk_id, bool *chunk_exists) | |
1398 | { | |
1399 | int ret = 0; | |
1400 | struct lttcomm_relayd_trace_chunk_exists msg = {}; | |
1401 | struct lttcomm_relayd_trace_chunk_exists_reply reply = {}; | |
1402 | ||
1403 | msg = (typeof(msg)){ | |
1404 | .chunk_id = htobe64(chunk_id), | |
1405 | }; | |
1406 | ||
1407 | ret = send_command(sock, RELAYD_TRACE_CHUNK_EXISTS, &msg, sizeof(msg), | |
1408 | 0); | |
1409 | if (ret < 0) { | |
1410 | ERR("Failed to send trace chunk exists command to relay daemon"); | |
1411 | goto end; | |
1412 | } | |
1413 | ||
1414 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1415 | if (ret < 0) { | |
1416 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1417 | goto end; | |
1418 | } | |
1419 | ||
1420 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1421 | if (reply.generic.ret_code != LTTNG_OK) { | |
1422 | ret = -1; | |
1423 | ERR("Relayd trace chunk close replied error %d", | |
1424 | reply.generic.ret_code); | |
1425 | } else { | |
1426 | ret = 0; | |
1427 | DBG("Relayd successfully checked trace chunk existence: chunk_id = %" PRIu64 | |
1428 | ", exists = %s", chunk_id, | |
1429 | reply.trace_chunk_exists ? "true" : "false"); | |
1430 | *chunk_exists = !!reply.trace_chunk_exists; | |
1431 | } | |
1432 | end: | |
1433 | return ret; | |
1434 | } |