Commit | Line | Data |
---|---|---|
00e2e675 | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2012 David Goulet <dgoulet@efficios.com> |
00e2e675 | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: GPL-2.0-only |
00e2e675 | 5 | * |
00e2e675 DG |
6 | */ |
7 | ||
6c1c0768 | 8 | #define _LGPL_SOURCE |
00e2e675 DG |
9 | #include <stdio.h> |
10 | #include <stdlib.h> | |
11 | #include <string.h> | |
12 | #include <sys/stat.h> | |
77c7c900 | 13 | #include <inttypes.h> |
00e2e675 | 14 | |
f4c5b127 | 15 | #include <bitset> |
c9e313bc | 16 | #include <common/common.hpp> |
c9e313bc SM |
17 | #include <common/compat/endian.hpp> |
18 | #include <common/compat/string.hpp> | |
f4c5b127 | 19 | #include <common/defaults.hpp> |
c9e313bc | 20 | #include <common/index/ctf-index.hpp> |
f4c5b127 | 21 | #include <common/sessiond-comm/relayd.hpp> |
c9e313bc | 22 | #include <common/string-utils/format.hpp> |
f4c5b127 | 23 | #include <common/trace-chunk.hpp> |
8476ce3a | 24 | #include <lttng/trace-format-descriptor-internal.hpp> |
00e2e675 | 25 | |
c9e313bc | 26 | #include "relayd.hpp" |
00e2e675 | 27 | |
070b6a86 MD |
28 | static |
29 | bool relayd_supports_chunks(const struct lttcomm_relayd_sock *sock) | |
30 | { | |
31 | if (sock->major > 2) { | |
32 | return true; | |
33 | } else if (sock->major == 2 && sock->minor >= 11) { | |
34 | return true; | |
35 | } | |
36 | return false; | |
37 | } | |
38 | ||
8614e600 MD |
39 | static |
40 | bool relayd_supports_get_configuration(const struct lttcomm_relayd_sock *sock) | |
41 | { | |
42 | if (sock->major > 2) { | |
43 | return true; | |
44 | } else if (sock->major == 2 && sock->minor >= 12) { | |
45 | return true; | |
46 | } | |
47 | return false; | |
48 | } | |
49 | ||
f4c5b127 JR |
50 | static bool relayd_supports_get_configuration_trace_format(const struct lttcomm_relayd_sock *sock) |
51 | { | |
52 | if (sock->major > 2) { | |
53 | return true; | |
54 | } else if (sock->major == 2 && sock->minor >= 15) { | |
55 | return true; | |
56 | } | |
57 | return false; | |
58 | } | |
59 | ||
00e2e675 DG |
60 | /* |
61 | * Send command. Fill up the header and append the data. | |
62 | */ | |
6151a90f | 63 | static int send_command(struct lttcomm_relayd_sock *rsock, |
76b9afaa | 64 | enum lttcomm_relayd_command cmd, const void *data, size_t size, |
00e2e675 DG |
65 | int flags) |
66 | { | |
67 | int ret; | |
68 | struct lttcomm_relayd_hdr header; | |
69 | char *buf; | |
70 | uint64_t buf_size = sizeof(header); | |
71 | ||
f96e4545 MD |
72 | if (rsock->sock.fd < 0) { |
73 | return -ECONNRESET; | |
74 | } | |
75 | ||
00e2e675 DG |
76 | if (data) { |
77 | buf_size += size; | |
78 | } | |
79 | ||
64803277 | 80 | buf = calloc<char>(buf_size); |
00e2e675 DG |
81 | if (buf == NULL) { |
82 | PERROR("zmalloc relayd send command buf"); | |
f4c5b127 | 83 | ret = -ENOMEM; |
00e2e675 DG |
84 | goto alloc_error; |
85 | } | |
86 | ||
53efb85a | 87 | memset(&header, 0, sizeof(header)); |
00e2e675 DG |
88 | header.cmd = htobe32(cmd); |
89 | header.data_size = htobe64(size); | |
90 | ||
91 | /* Zeroed for now since not used. */ | |
92 | header.cmd_version = 0; | |
93 | header.circuit_id = 0; | |
94 | ||
95 | /* Prepare buffer to send. */ | |
96 | memcpy(buf, &header, sizeof(header)); | |
97 | if (data) { | |
98 | memcpy(buf + sizeof(header), data, size); | |
99 | } | |
100 | ||
00e71031 FD |
101 | DBG3("Relayd sending command %s of size %" PRIu64, |
102 | lttcomm_relayd_command_str(cmd), buf_size); | |
6151a90f | 103 | ret = rsock->sock.ops->sendmsg(&rsock->sock, buf, buf_size, flags); |
00e2e675 | 104 | if (ret < 0) { |
00e71031 FD |
105 | PERROR("Failed to send command %s of size %" PRIu64, |
106 | lttcomm_relayd_command_str(cmd), buf_size); | |
8994307f | 107 | ret = -errno; |
00e2e675 DG |
108 | goto error; |
109 | } | |
00e2e675 DG |
110 | error: |
111 | free(buf); | |
112 | alloc_error: | |
113 | return ret; | |
114 | } | |
115 | ||
116 | /* | |
117 | * Receive reply data on socket. This MUST be call after send_command or else | |
118 | * could result in unexpected behavior(s). | |
119 | */ | |
6151a90f | 120 | static int recv_reply(struct lttcomm_relayd_sock *rsock, void *data, size_t size) |
00e2e675 DG |
121 | { |
122 | int ret; | |
123 | ||
f96e4545 MD |
124 | if (rsock->sock.fd < 0) { |
125 | return -ECONNRESET; | |
126 | } | |
127 | ||
8fd623e0 | 128 | DBG3("Relayd waiting for reply of size %zu", size); |
00e2e675 | 129 | |
6151a90f | 130 | ret = rsock->sock.ops->recvmsg(&rsock->sock, data, size, 0); |
20275fe8 DG |
131 | if (ret <= 0 || ret != size) { |
132 | if (ret == 0) { | |
133 | /* Orderly shutdown. */ | |
6151a90f | 134 | DBG("Socket %d has performed an orderly shutdown", rsock->sock.fd); |
20275fe8 | 135 | } else { |
8fd623e0 | 136 | DBG("Receiving reply failed on sock %d for size %zu with ret %d", |
6151a90f | 137 | rsock->sock.fd, size, ret); |
20275fe8 DG |
138 | } |
139 | /* Always return -1 here and the caller can use errno. */ | |
140 | ret = -1; | |
00e2e675 DG |
141 | goto error; |
142 | } | |
143 | ||
144 | error: | |
145 | return ret; | |
146 | } | |
147 | ||
8476ce3a JR |
148 | /* |
149 | * Starting from 2.15, the trace format for the session is sent to lttng-relayd | |
150 | * on creation. | |
151 | * */ | |
152 | static int relayd_create_session_2_15(struct lttcomm_relayd_sock *rsock, | |
153 | const char *session_name, | |
154 | const char *hostname, | |
155 | const char *base_path, | |
156 | int session_live_timer, | |
157 | unsigned int snapshot, | |
158 | uint64_t sessiond_session_id, | |
159 | const lttng_uuid& sessiond_uuid, | |
160 | const uint64_t *current_chunk_id, | |
161 | time_t creation_time, | |
162 | bool session_name_contains_creation_time, | |
163 | lttcomm_relayd_create_session_reply_2_15 *reply, | |
164 | char *output_path, | |
165 | const lttng::trace_format_descriptor& trace_format) | |
166 | { | |
167 | int ret; | |
168 | struct lttcomm_relayd_create_session_2_15 *msg = NULL; | |
169 | size_t session_name_len; | |
170 | size_t hostname_len; | |
171 | size_t base_path_len; | |
172 | size_t msg_length; | |
173 | char *dst; | |
174 | ||
175 | if (!base_path) { | |
176 | base_path = ""; | |
177 | } | |
178 | /* The three names are sent with a '\0' delimiter between them. */ | |
179 | session_name_len = strlen(session_name) + 1; | |
180 | hostname_len = strlen(hostname) + 1; | |
181 | base_path_len = strlen(base_path) + 1; | |
182 | ||
183 | msg_length = sizeof(*msg) + session_name_len + hostname_len + base_path_len; | |
184 | msg = zmalloc<lttcomm_relayd_create_session_2_15>(msg_length); | |
185 | if (!msg) { | |
186 | PERROR("zmalloc create_session_2_11 command message"); | |
187 | ret = -1; | |
188 | goto error; | |
189 | } | |
190 | ||
191 | LTTNG_ASSERT(session_name_len <= UINT32_MAX); | |
192 | msg->session_name_len = htobe32(session_name_len); | |
193 | ||
194 | LTTNG_ASSERT(hostname_len <= UINT32_MAX); | |
195 | msg->hostname_len = htobe32(hostname_len); | |
196 | ||
197 | LTTNG_ASSERT(base_path_len <= UINT32_MAX); | |
198 | msg->base_path_len = htobe32(base_path_len); | |
199 | ||
200 | dst = msg->names; | |
201 | if (lttng_strncpy(dst, session_name, session_name_len)) { | |
202 | ret = -1; | |
203 | goto error; | |
204 | } | |
205 | dst += session_name_len; | |
206 | if (lttng_strncpy(dst, hostname, hostname_len)) { | |
207 | ret = -1; | |
208 | goto error; | |
209 | } | |
210 | dst += hostname_len; | |
211 | if (lttng_strncpy(dst, base_path, base_path_len)) { | |
212 | ret = -1; | |
213 | goto error; | |
214 | } | |
215 | ||
216 | msg->live_timer = htobe32(session_live_timer); | |
217 | msg->snapshot = !!snapshot; | |
218 | ||
219 | std::copy(sessiond_uuid.begin(), sessiond_uuid.end(), msg->sessiond_uuid); | |
220 | msg->session_id = htobe64(sessiond_session_id); | |
221 | msg->session_name_contains_creation_time = session_name_contains_creation_time; | |
222 | msg->trace_format = (uint8_t) trace_format.relayd_type(); | |
223 | if (current_chunk_id) { | |
224 | LTTNG_OPTIONAL_SET(&msg->current_chunk_id, htobe64(*current_chunk_id)); | |
225 | } | |
226 | ||
227 | msg->creation_time = htobe64((uint64_t) creation_time); | |
228 | ||
229 | /* Send command */ | |
230 | ret = send_command(rsock, RELAYD_CREATE_SESSION, msg, msg_length, 0); | |
231 | if (ret < 0) { | |
232 | goto error; | |
233 | } | |
234 | /* Receive response */ | |
235 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
236 | if (ret < 0) { | |
237 | goto error; | |
238 | } | |
239 | reply->generic.session_id = be64toh(reply->generic.session_id); | |
240 | reply->generic.ret_code = be32toh(reply->generic.ret_code); | |
241 | reply->output_path_length = be32toh(reply->output_path_length); | |
242 | if (reply->output_path_length >= LTTNG_PATH_MAX) { | |
243 | ERR("Invalid session output path length in reply (%" PRIu32 | |
244 | " bytes) exceeds maximal allowed length (%d bytes)", | |
245 | reply->output_path_length, LTTNG_PATH_MAX); | |
246 | ret = -1; | |
247 | goto error; | |
248 | } | |
249 | ret = recv_reply(rsock, output_path, reply->output_path_length); | |
250 | if (ret < 0) { | |
251 | goto error; | |
252 | } | |
253 | error: | |
254 | free(msg); | |
255 | return ret; | |
256 | } | |
257 | ||
d3e2ba59 | 258 | /* |
6fa5fe7c MD |
259 | * Starting from 2.11, RELAYD_CREATE_SESSION payload (session_name, |
260 | * hostname, and base_path) have no length restriction on the sender side. | |
f86f6389 JR |
261 | * Length for both payloads is stored in the msg struct. A new dynamic size |
262 | * payload size is introduced. | |
263 | */ | |
264 | static int relayd_create_session_2_11(struct lttcomm_relayd_sock *rsock, | |
fb9a95c4 | 265 | const char *session_name, const char *hostname, |
6fa5fe7c MD |
266 | const char *base_path, int session_live_timer, |
267 | unsigned int snapshot, uint64_t sessiond_session_id, | |
328c2fe7 | 268 | const lttng_uuid& sessiond_uuid, const uint64_t *current_chunk_id, |
ecd1a12f MD |
269 | time_t creation_time, bool session_name_contains_creation_time, |
270 | struct lttcomm_relayd_create_session_reply_2_11 *reply, | |
271 | char *output_path) | |
f86f6389 JR |
272 | { |
273 | int ret; | |
274 | struct lttcomm_relayd_create_session_2_11 *msg = NULL; | |
275 | size_t session_name_len; | |
276 | size_t hostname_len; | |
6fa5fe7c | 277 | size_t base_path_len; |
f86f6389 | 278 | size_t msg_length; |
6fa5fe7c | 279 | char *dst; |
f86f6389 | 280 | |
46ef2188 MD |
281 | if (!base_path) { |
282 | base_path = ""; | |
283 | } | |
284 | /* The three names are sent with a '\0' delimiter between them. */ | |
f86f6389 JR |
285 | session_name_len = strlen(session_name) + 1; |
286 | hostname_len = strlen(hostname) + 1; | |
17e736a5 | 287 | base_path_len = strlen(base_path) + 1; |
f86f6389 | 288 | |
6fa5fe7c | 289 | msg_length = sizeof(*msg) + session_name_len + hostname_len + base_path_len; |
64803277 | 290 | msg = zmalloc<lttcomm_relayd_create_session_2_11>(msg_length); |
f86f6389 JR |
291 | if (!msg) { |
292 | PERROR("zmalloc create_session_2_11 command message"); | |
293 | ret = -1; | |
294 | goto error; | |
295 | } | |
296 | ||
a0377dfe | 297 | LTTNG_ASSERT(session_name_len <= UINT32_MAX); |
f86f6389 JR |
298 | msg->session_name_len = htobe32(session_name_len); |
299 | ||
a0377dfe | 300 | LTTNG_ASSERT(hostname_len <= UINT32_MAX); |
f86f6389 JR |
301 | msg->hostname_len = htobe32(hostname_len); |
302 | ||
a0377dfe | 303 | LTTNG_ASSERT(base_path_len <= UINT32_MAX); |
6fa5fe7c MD |
304 | msg->base_path_len = htobe32(base_path_len); |
305 | ||
306 | dst = msg->names; | |
307 | if (lttng_strncpy(dst, session_name, session_name_len)) { | |
308 | ret = -1; | |
309 | goto error; | |
310 | } | |
311 | dst += session_name_len; | |
312 | if (lttng_strncpy(dst, hostname, hostname_len)) { | |
f86f6389 JR |
313 | ret = -1; |
314 | goto error; | |
315 | } | |
6fa5fe7c | 316 | dst += hostname_len; |
36f9f13b | 317 | if (lttng_strncpy(dst, base_path, base_path_len)) { |
f86f6389 JR |
318 | ret = -1; |
319 | goto error; | |
320 | } | |
321 | ||
322 | msg->live_timer = htobe32(session_live_timer); | |
323 | msg->snapshot = !!snapshot; | |
324 | ||
328c2fe7 | 325 | std::copy(sessiond_uuid.begin(), sessiond_uuid.end(), msg->sessiond_uuid); |
658f12fa | 326 | msg->session_id = htobe64(sessiond_session_id); |
46ef2188 | 327 | msg->session_name_contains_creation_time = session_name_contains_creation_time; |
f39bd140 JG |
328 | if (current_chunk_id) { |
329 | LTTNG_OPTIONAL_SET(&msg->current_chunk_id, | |
330 | htobe64(*current_chunk_id)); | |
331 | } | |
332 | ||
db1da059 JG |
333 | msg->creation_time = htobe64((uint64_t) creation_time); |
334 | ||
f86f6389 JR |
335 | /* Send command */ |
336 | ret = send_command(rsock, RELAYD_CREATE_SESSION, msg, msg_length, 0); | |
337 | if (ret < 0) { | |
338 | goto error; | |
339 | } | |
ecd1a12f MD |
340 | /* Receive response */ |
341 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
342 | if (ret < 0) { | |
343 | goto error; | |
344 | } | |
345 | reply->generic.session_id = be64toh(reply->generic.session_id); | |
346 | reply->generic.ret_code = be32toh(reply->generic.ret_code); | |
347 | reply->output_path_length = be32toh(reply->output_path_length); | |
348 | if (reply->output_path_length >= LTTNG_PATH_MAX) { | |
349 | ERR("Invalid session output path length in reply (%" PRIu32 " bytes) exceeds maximal allowed length (%d bytes)", | |
350 | reply->output_path_length, LTTNG_PATH_MAX); | |
351 | ret = -1; | |
352 | goto error; | |
353 | } | |
354 | ret = recv_reply(rsock, output_path, reply->output_path_length); | |
355 | if (ret < 0) { | |
356 | goto error; | |
357 | } | |
f86f6389 JR |
358 | error: |
359 | free(msg); | |
360 | return ret; | |
361 | } | |
362 | /* | |
363 | * From 2.4 to 2.10, RELAYD_CREATE_SESSION takes additional parameters to | |
d3e2ba59 JD |
364 | * support the live reading capability. |
365 | */ | |
366 | static int relayd_create_session_2_4(struct lttcomm_relayd_sock *rsock, | |
fb9a95c4 | 367 | const char *session_name, const char *hostname, |
ecd1a12f MD |
368 | int session_live_timer, unsigned int snapshot, |
369 | struct lttcomm_relayd_status_session *reply) | |
d3e2ba59 JD |
370 | { |
371 | int ret; | |
372 | struct lttcomm_relayd_create_session_2_4 msg; | |
373 | ||
3a13ffd5 MD |
374 | if (lttng_strncpy(msg.session_name, session_name, |
375 | sizeof(msg.session_name))) { | |
246777db MD |
376 | ret = -1; |
377 | goto error; | |
378 | } | |
3a13ffd5 | 379 | if (lttng_strncpy(msg.hostname, hostname, sizeof(msg.hostname))) { |
246777db MD |
380 | ret = -1; |
381 | goto error; | |
382 | } | |
d3e2ba59 | 383 | msg.live_timer = htobe32(session_live_timer); |
7d2f7452 | 384 | msg.snapshot = htobe32(snapshot); |
d3e2ba59 JD |
385 | |
386 | /* Send command */ | |
387 | ret = send_command(rsock, RELAYD_CREATE_SESSION, &msg, sizeof(msg), 0); | |
388 | if (ret < 0) { | |
389 | goto error; | |
390 | } | |
391 | ||
ecd1a12f MD |
392 | /* Receive response */ |
393 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
394 | if (ret < 0) { | |
395 | goto error; | |
396 | } | |
397 | reply->session_id = be64toh(reply->session_id); | |
398 | reply->ret_code = be32toh(reply->ret_code); | |
d3e2ba59 JD |
399 | error: |
400 | return ret; | |
401 | } | |
402 | ||
403 | /* | |
404 | * RELAYD_CREATE_SESSION from 2.1 to 2.3. | |
405 | */ | |
ecd1a12f MD |
406 | static int relayd_create_session_2_1(struct lttcomm_relayd_sock *rsock, |
407 | struct lttcomm_relayd_status_session *reply) | |
d3e2ba59 JD |
408 | { |
409 | int ret; | |
410 | ||
411 | /* Send command */ | |
412 | ret = send_command(rsock, RELAYD_CREATE_SESSION, NULL, 0, 0); | |
413 | if (ret < 0) { | |
414 | goto error; | |
415 | } | |
416 | ||
ecd1a12f MD |
417 | /* Receive response */ |
418 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
419 | if (ret < 0) { | |
420 | goto error; | |
421 | } | |
422 | reply->session_id = be64toh(reply->session_id); | |
423 | reply->ret_code = be32toh(reply->ret_code); | |
d3e2ba59 JD |
424 | error: |
425 | return ret; | |
426 | } | |
427 | ||
c5b6f4f0 DG |
428 | /* |
429 | * Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and | |
430 | * set session_id of the relayd if we have a successful reply from the relayd. | |
431 | * | |
20275fe8 DG |
432 | * On success, return 0 else a negative value which is either an errno error or |
433 | * a lttng error code from the relayd. | |
c5b6f4f0 | 434 | */ |
fb9a95c4 JG |
435 | int relayd_create_session(struct lttcomm_relayd_sock *rsock, |
436 | uint64_t *relayd_session_id, | |
8476ce3a JR |
437 | const char *session_name, |
438 | const char *hostname, | |
439 | const char *base_path, | |
440 | int session_live_timer, | |
441 | unsigned int snapshot, | |
442 | uint64_t sessiond_session_id, | |
328c2fe7 | 443 | const lttng_uuid& sessiond_uuid, |
db1da059 | 444 | const uint64_t *current_chunk_id, |
8476ce3a JR |
445 | time_t creation_time, |
446 | bool session_name_contains_creation_time, | |
447 | char *output_path, | |
448 | lttng::trace_format_descriptor& trace_format) | |
c5b6f4f0 DG |
449 | { |
450 | int ret; | |
8476ce3a | 451 | lttcomm_relayd_create_session_reply_2_15 reply = {}; |
c5b6f4f0 | 452 | |
a0377dfe FD |
453 | LTTNG_ASSERT(rsock); |
454 | LTTNG_ASSERT(relayd_session_id); | |
c5b6f4f0 DG |
455 | |
456 | DBG("Relayd create session"); | |
457 | ||
f86f6389 JR |
458 | if (rsock->minor < 4) { |
459 | /* From 2.1 to 2.3 */ | |
ecd1a12f | 460 | ret = relayd_create_session_2_1(rsock, &reply.generic); |
f86f6389 JR |
461 | } else if (rsock->minor >= 4 && rsock->minor < 11) { |
462 | /* From 2.4 to 2.10 */ | |
8476ce3a JR |
463 | ret = relayd_create_session_2_4(rsock, session_name, hostname, session_live_timer, |
464 | snapshot, &reply.generic); | |
465 | } else if (rsock->minor < 15) { | |
466 | /* From 2.11 to 2.14 */ | |
467 | ret = relayd_create_session_2_11(rsock, session_name, hostname, base_path, | |
468 | session_live_timer, snapshot, sessiond_session_id, sessiond_uuid, | |
469 | current_chunk_id, creation_time, | |
470 | session_name_contains_creation_time, &reply, output_path); | |
f86f6389 | 471 | } else { |
8476ce3a JR |
472 | ret = relayd_create_session_2_15(rsock, session_name, hostname, base_path, |
473 | session_live_timer, snapshot, sessiond_session_id, sessiond_uuid, | |
46ef2188 | 474 | current_chunk_id, creation_time, |
8476ce3a JR |
475 | session_name_contains_creation_time, &reply, output_path, |
476 | trace_format); | |
c5b6f4f0 DG |
477 | } |
478 | ||
c5b6f4f0 DG |
479 | if (ret < 0) { |
480 | goto error; | |
481 | } | |
482 | ||
c5b6f4f0 | 483 | /* Return session id or negative ret code. */ |
ecd1a12f | 484 | if (reply.generic.ret_code != LTTNG_OK) { |
bb63afd9 | 485 | ret = -1; |
ecd1a12f MD |
486 | ERR("Relayd create session replied error %d", |
487 | reply.generic.ret_code); | |
c5b6f4f0 DG |
488 | goto error; |
489 | } else { | |
490 | ret = 0; | |
ecd1a12f | 491 | *relayd_session_id = reply.generic.session_id; |
c5b6f4f0 DG |
492 | } |
493 | ||
ecd1a12f | 494 | DBG("Relayd session created with id %" PRIu64, reply.generic.session_id); |
c5b6f4f0 DG |
495 | |
496 | error: | |
497 | return ret; | |
498 | } | |
499 | ||
2f21a469 JR |
500 | static int relayd_add_stream_2_1(struct lttcomm_relayd_sock *rsock, |
501 | const char *channel_name, const char *pathname) | |
502 | { | |
503 | int ret; | |
504 | struct lttcomm_relayd_add_stream msg; | |
505 | ||
506 | memset(&msg, 0, sizeof(msg)); | |
507 | if (lttng_strncpy(msg.channel_name, channel_name, | |
508 | sizeof(msg.channel_name))) { | |
509 | ret = -1; | |
510 | goto error; | |
511 | } | |
512 | ||
513 | if (lttng_strncpy(msg.pathname, pathname, | |
514 | sizeof(msg.pathname))) { | |
515 | ret = -1; | |
516 | goto error; | |
517 | } | |
518 | ||
519 | /* Send command */ | |
520 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
521 | if (ret < 0) { | |
522 | ret = -1; | |
523 | goto error; | |
524 | } | |
525 | ret = 0; | |
526 | error: | |
527 | return ret; | |
528 | } | |
529 | ||
530 | static int relayd_add_stream_2_2(struct lttcomm_relayd_sock *rsock, | |
531 | const char *channel_name, const char *pathname, | |
532 | uint64_t tracefile_size, uint64_t tracefile_count) | |
533 | { | |
534 | int ret; | |
535 | struct lttcomm_relayd_add_stream_2_2 msg; | |
536 | ||
537 | memset(&msg, 0, sizeof(msg)); | |
538 | /* Compat with relayd 2.2 to 2.10 */ | |
539 | if (lttng_strncpy(msg.channel_name, channel_name, | |
540 | sizeof(msg.channel_name))) { | |
541 | ret = -1; | |
542 | goto error; | |
543 | } | |
544 | if (lttng_strncpy(msg.pathname, pathname, | |
545 | sizeof(msg.pathname))) { | |
546 | ret = -1; | |
547 | goto error; | |
548 | } | |
549 | msg.tracefile_size = htobe64(tracefile_size); | |
550 | msg.tracefile_count = htobe64(tracefile_count); | |
551 | ||
552 | /* Send command */ | |
553 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
554 | if (ret < 0) { | |
555 | goto error; | |
556 | } | |
557 | ret = 0; | |
558 | error: | |
559 | return ret; | |
560 | } | |
561 | ||
562 | static int relayd_add_stream_2_11(struct lttcomm_relayd_sock *rsock, | |
563 | const char *channel_name, const char *pathname, | |
b00e554e JG |
564 | uint64_t tracefile_size, uint64_t tracefile_count, |
565 | uint64_t trace_archive_id) | |
2f21a469 JR |
566 | { |
567 | int ret; | |
568 | struct lttcomm_relayd_add_stream_2_11 *msg = NULL; | |
569 | size_t channel_name_len; | |
570 | size_t pathname_len; | |
571 | size_t msg_length; | |
572 | ||
573 | /* The two names are sent with a '\0' delimiter between them. */ | |
574 | channel_name_len = strlen(channel_name) + 1; | |
575 | pathname_len = strlen(pathname) + 1; | |
576 | ||
577 | msg_length = sizeof(*msg) + channel_name_len + pathname_len; | |
64803277 | 578 | msg = zmalloc<lttcomm_relayd_add_stream_2_11>(msg_length); |
2f21a469 JR |
579 | if (!msg) { |
580 | PERROR("zmalloc add_stream_2_11 command message"); | |
581 | ret = -1; | |
582 | goto error; | |
583 | } | |
584 | ||
a0377dfe | 585 | LTTNG_ASSERT(channel_name_len <= UINT32_MAX); |
2f21a469 JR |
586 | msg->channel_name_len = htobe32(channel_name_len); |
587 | ||
a0377dfe | 588 | LTTNG_ASSERT(pathname_len <= UINT32_MAX); |
2f21a469 JR |
589 | msg->pathname_len = htobe32(pathname_len); |
590 | ||
591 | if (lttng_strncpy(msg->names, channel_name, channel_name_len)) { | |
592 | ret = -1; | |
593 | goto error; | |
594 | } | |
595 | if (lttng_strncpy(msg->names + channel_name_len, pathname, pathname_len)) { | |
596 | ret = -1; | |
597 | goto error; | |
598 | } | |
599 | ||
600 | msg->tracefile_size = htobe64(tracefile_size); | |
601 | msg->tracefile_count = htobe64(tracefile_count); | |
348a81dc | 602 | msg->trace_chunk_id = htobe64(trace_archive_id); |
2f21a469 JR |
603 | |
604 | /* Send command */ | |
605 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) msg, msg_length, 0); | |
606 | if (ret < 0) { | |
607 | goto error; | |
608 | } | |
609 | ret = 0; | |
610 | error: | |
611 | free(msg); | |
612 | return ret; | |
613 | } | |
614 | ||
00e2e675 DG |
615 | /* |
616 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
617 | * | |
070b6a86 MD |
618 | * Chunks are not supported by relayd prior to 2.11, but are used to |
619 | * internally between session daemon and consumer daemon to keep track | |
620 | * of the channel and stream output path. | |
621 | * | |
00e2e675 DG |
622 | * On success return 0 else return ret_code negative value. |
623 | */ | |
6151a90f | 624 | int relayd_add_stream(struct lttcomm_relayd_sock *rsock, const char *channel_name, |
5da88b0f | 625 | const char *domain_name, const char *_pathname, uint64_t *stream_id, |
0b50e4b3 | 626 | uint64_t tracefile_size, uint64_t tracefile_count, |
d2956687 | 627 | struct lttng_trace_chunk *trace_chunk) |
00e2e675 DG |
628 | { |
629 | int ret; | |
00e2e675 | 630 | struct lttcomm_relayd_status_stream reply; |
5da88b0f | 631 | char pathname[RELAYD_COMM_LTTNG_PATH_MAX]; |
00e2e675 DG |
632 | |
633 | /* Code flow error. Safety net. */ | |
a0377dfe FD |
634 | LTTNG_ASSERT(rsock); |
635 | LTTNG_ASSERT(channel_name); | |
636 | LTTNG_ASSERT(domain_name); | |
637 | LTTNG_ASSERT(_pathname); | |
638 | LTTNG_ASSERT(trace_chunk); | |
00e2e675 DG |
639 | |
640 | DBG("Relayd adding stream for channel name %s", channel_name); | |
641 | ||
0f907de1 JD |
642 | /* Compat with relayd 2.1 */ |
643 | if (rsock->minor == 1) { | |
2f21a469 | 644 | /* For 2.1 */ |
5fab2976 | 645 | ret = relayd_add_stream_2_1(rsock, channel_name, _pathname); |
55caead7 | 646 | |
2f21a469 JR |
647 | } else if (rsock->minor > 1 && rsock->minor < 11) { |
648 | /* From 2.2 to 2.10 */ | |
5fab2976 | 649 | ret = relayd_add_stream_2_2(rsock, channel_name, _pathname, |
2f21a469 | 650 | tracefile_size, tracefile_count); |
0f907de1 | 651 | } else { |
5fab2976 | 652 | const char *separator; |
d2956687 JG |
653 | enum lttng_trace_chunk_status chunk_status; |
654 | uint64_t chunk_id; | |
655 | ||
5fab2976 JR |
656 | if (_pathname[0] == '\0') { |
657 | separator = ""; | |
658 | } else { | |
659 | separator = "/"; | |
660 | } | |
661 | ||
662 | ret = snprintf(pathname, RELAYD_COMM_LTTNG_PATH_MAX, "%s%s%s", | |
663 | domain_name, separator, _pathname); | |
664 | if (ret <= 0 || ret >= RELAYD_COMM_LTTNG_PATH_MAX) { | |
665 | ERR("Failed to format stream path: %s", | |
666 | ret <= 0 ? "formatting error" : | |
667 | "path exceeds maximal allowed length"); | |
668 | ret = -1; | |
669 | goto error; | |
670 | } | |
671 | ||
d2956687 JG |
672 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, |
673 | &chunk_id); | |
a0377dfe | 674 | LTTNG_ASSERT(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); |
d2956687 | 675 | |
2f21a469 JR |
676 | /* From 2.11 to ...*/ |
677 | ret = relayd_add_stream_2_11(rsock, channel_name, pathname, | |
b00e554e | 678 | tracefile_size, tracefile_count, |
d2956687 | 679 | chunk_id); |
2f21a469 | 680 | } |
0f907de1 | 681 | |
2f21a469 JR |
682 | if (ret) { |
683 | ret = -1; | |
684 | goto error; | |
00e2e675 DG |
685 | } |
686 | ||
633d0084 | 687 | /* Waiting for reply */ |
6151a90f | 688 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
00e2e675 DG |
689 | if (ret < 0) { |
690 | goto error; | |
691 | } | |
692 | ||
693 | /* Back to host bytes order. */ | |
694 | reply.handle = be64toh(reply.handle); | |
695 | reply.ret_code = be32toh(reply.ret_code); | |
696 | ||
697 | /* Return session id or negative ret code. */ | |
f73fabfd | 698 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
699 | ret = -1; |
700 | ERR("Relayd add stream replied error %d", reply.ret_code); | |
00e2e675 DG |
701 | } else { |
702 | /* Success */ | |
703 | ret = 0; | |
704 | *stream_id = reply.handle; | |
705 | } | |
706 | ||
77c7c900 | 707 | DBG("Relayd stream added successfully with handle %" PRIu64, |
2f21a469 | 708 | reply.handle); |
00e2e675 DG |
709 | |
710 | error: | |
711 | return ret; | |
712 | } | |
713 | ||
a4baae1b JD |
714 | /* |
715 | * Inform the relay that all the streams for the current channel has been sent. | |
716 | * | |
717 | * On success return 0 else return ret_code negative value. | |
718 | */ | |
719 | int relayd_streams_sent(struct lttcomm_relayd_sock *rsock) | |
720 | { | |
721 | int ret; | |
722 | struct lttcomm_relayd_generic_reply reply; | |
723 | ||
724 | /* Code flow error. Safety net. */ | |
a0377dfe | 725 | LTTNG_ASSERT(rsock); |
a4baae1b JD |
726 | |
727 | DBG("Relayd sending streams sent."); | |
728 | ||
729 | /* This feature was introduced in 2.4, ignore it for earlier versions. */ | |
730 | if (rsock->minor < 4) { | |
731 | ret = 0; | |
732 | goto end; | |
733 | } | |
734 | ||
735 | /* Send command */ | |
736 | ret = send_command(rsock, RELAYD_STREAMS_SENT, NULL, 0, 0); | |
737 | if (ret < 0) { | |
738 | goto error; | |
739 | } | |
740 | ||
741 | /* Waiting for reply */ | |
742 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
743 | if (ret < 0) { | |
744 | goto error; | |
745 | } | |
746 | ||
747 | /* Back to host bytes order. */ | |
748 | reply.ret_code = be32toh(reply.ret_code); | |
749 | ||
750 | /* Return session id or negative ret code. */ | |
751 | if (reply.ret_code != LTTNG_OK) { | |
752 | ret = -1; | |
753 | ERR("Relayd streams sent replied error %d", reply.ret_code); | |
754 | goto error; | |
755 | } else { | |
756 | /* Success */ | |
757 | ret = 0; | |
758 | } | |
759 | ||
760 | DBG("Relayd streams sent success"); | |
761 | ||
762 | error: | |
763 | end: | |
764 | return ret; | |
765 | } | |
766 | ||
00e2e675 DG |
767 | /* |
768 | * Check version numbers on the relayd. | |
d4519fa3 JD |
769 | * If major versions are compatible, we assign minor_to_use to the |
770 | * minor version of the procotol we are going to use for this session. | |
00e2e675 | 771 | * |
67d5aa28 JD |
772 | * Return 0 if the two daemons are compatible, LTTNG_ERR_RELAYD_VERSION_FAIL |
773 | * otherwise, or a negative value on network errors. | |
00e2e675 | 774 | */ |
6151a90f | 775 | int relayd_version_check(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
776 | { |
777 | int ret; | |
092b6259 | 778 | struct lttcomm_relayd_version msg; |
00e2e675 DG |
779 | |
780 | /* Code flow error. Safety net. */ | |
a0377dfe | 781 | LTTNG_ASSERT(rsock); |
00e2e675 | 782 | |
6151a90f JD |
783 | DBG("Relayd version check for major.minor %u.%u", rsock->major, |
784 | rsock->minor); | |
00e2e675 | 785 | |
53efb85a | 786 | memset(&msg, 0, sizeof(msg)); |
092b6259 | 787 | /* Prepare network byte order before transmission. */ |
6151a90f JD |
788 | msg.major = htobe32(rsock->major); |
789 | msg.minor = htobe32(rsock->minor); | |
092b6259 | 790 | |
00e2e675 | 791 | /* Send command */ |
6151a90f | 792 | ret = send_command(rsock, RELAYD_VERSION, (void *) &msg, sizeof(msg), 0); |
00e2e675 DG |
793 | if (ret < 0) { |
794 | goto error; | |
795 | } | |
796 | ||
20275fe8 | 797 | /* Receive response */ |
6151a90f | 798 | ret = recv_reply(rsock, (void *) &msg, sizeof(msg)); |
00e2e675 DG |
799 | if (ret < 0) { |
800 | goto error; | |
801 | } | |
802 | ||
803 | /* Set back to host bytes order */ | |
092b6259 DG |
804 | msg.major = be32toh(msg.major); |
805 | msg.minor = be32toh(msg.minor); | |
806 | ||
807 | /* | |
808 | * Only validate the major version. If the other side is higher, | |
809 | * communication is not possible. Only major version equal can talk to each | |
810 | * other. If the minor version differs, the lowest version is used by both | |
811 | * sides. | |
092b6259 | 812 | */ |
6151a90f | 813 | if (msg.major != rsock->major) { |
d4519fa3 | 814 | /* Not compatible */ |
67d5aa28 | 815 | ret = LTTNG_ERR_RELAYD_VERSION_FAIL; |
d4519fa3 | 816 | DBG2("Relayd version is NOT compatible. Relayd version %u != %u (us)", |
6151a90f | 817 | msg.major, rsock->major); |
092b6259 | 818 | goto error; |
00e2e675 DG |
819 | } |
820 | ||
092b6259 | 821 | /* |
6151a90f JD |
822 | * If the relayd's minor version is higher, it will adapt to our version so |
823 | * we can continue to use the latest relayd communication data structure. | |
824 | * If the received minor version is higher, the relayd should adapt to us. | |
092b6259 | 825 | */ |
6151a90f JD |
826 | if (rsock->minor > msg.minor) { |
827 | rsock->minor = msg.minor; | |
d4519fa3 | 828 | } |
092b6259 | 829 | |
d4519fa3 JD |
830 | /* Version number compatible */ |
831 | DBG2("Relayd version is compatible, using protocol version %u.%u", | |
6151a90f | 832 | rsock->major, rsock->minor); |
d4519fa3 | 833 | ret = 0; |
00e2e675 DG |
834 | |
835 | error: | |
836 | return ret; | |
837 | } | |
838 | ||
00e2e675 DG |
839 | /* |
840 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
841 | * | |
842 | * On success return 0 else return ret_code negative value. | |
843 | */ | |
6151a90f | 844 | int relayd_send_metadata(struct lttcomm_relayd_sock *rsock, size_t len) |
00e2e675 DG |
845 | { |
846 | int ret; | |
847 | ||
848 | /* Code flow error. Safety net. */ | |
a0377dfe | 849 | LTTNG_ASSERT(rsock); |
00e2e675 | 850 | |
77c7c900 | 851 | DBG("Relayd sending metadata of size %zu", len); |
00e2e675 DG |
852 | |
853 | /* Send command */ | |
6151a90f | 854 | ret = send_command(rsock, RELAYD_SEND_METADATA, NULL, len, 0); |
00e2e675 DG |
855 | if (ret < 0) { |
856 | goto error; | |
857 | } | |
858 | ||
859 | DBG2("Relayd metadata added successfully"); | |
860 | ||
861 | /* | |
862 | * After that call, the metadata data MUST be sent to the relayd so the | |
863 | * receive size on the other end matches the len of the metadata packet | |
633d0084 | 864 | * header. This is why we don't wait for a reply here. |
00e2e675 DG |
865 | */ |
866 | ||
867 | error: | |
868 | return ret; | |
869 | } | |
870 | ||
871 | /* | |
6151a90f | 872 | * Connect to relay daemon with an allocated lttcomm_relayd_sock. |
00e2e675 | 873 | */ |
6151a90f | 874 | int relayd_connect(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
875 | { |
876 | /* Code flow error. Safety net. */ | |
a0377dfe | 877 | LTTNG_ASSERT(rsock); |
00e2e675 | 878 | |
f96e4545 MD |
879 | if (!rsock->sock.ops) { |
880 | /* | |
881 | * Attempting a connect on a non-initialized socket. | |
882 | */ | |
883 | return -ECONNRESET; | |
884 | } | |
885 | ||
00e2e675 DG |
886 | DBG3("Relayd connect ..."); |
887 | ||
6151a90f | 888 | return rsock->sock.ops->connect(&rsock->sock); |
00e2e675 DG |
889 | } |
890 | ||
891 | /* | |
6151a90f | 892 | * Close relayd socket with an allocated lttcomm_relayd_sock. |
ffe60014 DG |
893 | * |
894 | * If no socket operations are found, simply return 0 meaning that everything | |
895 | * is fine. Without operations, the socket can not possibly be opened or used. | |
896 | * This is possible if the socket was allocated but not created. However, the | |
897 | * caller could simply use it to store a valid file descriptor for instance | |
898 | * passed over a Unix socket and call this to cleanup but still without a valid | |
899 | * ops pointer. | |
900 | * | |
901 | * Return the close returned value. On error, a negative value is usually | |
902 | * returned back from close(2). | |
00e2e675 | 903 | */ |
6151a90f | 904 | int relayd_close(struct lttcomm_relayd_sock *rsock) |
00e2e675 | 905 | { |
ffe60014 DG |
906 | int ret; |
907 | ||
00e2e675 | 908 | /* Code flow error. Safety net. */ |
a0377dfe | 909 | LTTNG_ASSERT(rsock); |
00e2e675 | 910 | |
ffe60014 | 911 | /* An invalid fd is fine, return success. */ |
6151a90f | 912 | if (rsock->sock.fd < 0) { |
ffe60014 DG |
913 | ret = 0; |
914 | goto end; | |
915 | } | |
916 | ||
6151a90f | 917 | DBG3("Relayd closing socket %d", rsock->sock.fd); |
00e2e675 | 918 | |
6151a90f JD |
919 | if (rsock->sock.ops) { |
920 | ret = rsock->sock.ops->close(&rsock->sock); | |
ffe60014 DG |
921 | } else { |
922 | /* Default call if no specific ops found. */ | |
6151a90f | 923 | ret = close(rsock->sock.fd); |
ffe60014 DG |
924 | if (ret < 0) { |
925 | PERROR("relayd_close default close"); | |
926 | } | |
927 | } | |
f96e4545 | 928 | rsock->sock.fd = -1; |
ffe60014 DG |
929 | |
930 | end: | |
931 | return ret; | |
00e2e675 DG |
932 | } |
933 | ||
934 | /* | |
935 | * Send data header structure to the relayd. | |
936 | */ | |
6151a90f | 937 | int relayd_send_data_hdr(struct lttcomm_relayd_sock *rsock, |
00e2e675 DG |
938 | struct lttcomm_relayd_data_hdr *hdr, size_t size) |
939 | { | |
940 | int ret; | |
941 | ||
942 | /* Code flow error. Safety net. */ | |
a0377dfe FD |
943 | LTTNG_ASSERT(rsock); |
944 | LTTNG_ASSERT(hdr); | |
00e2e675 | 945 | |
f96e4545 MD |
946 | if (rsock->sock.fd < 0) { |
947 | return -ECONNRESET; | |
948 | } | |
949 | ||
8fd623e0 | 950 | DBG3("Relayd sending data header of size %zu", size); |
00e2e675 DG |
951 | |
952 | /* Again, safety net */ | |
953 | if (size == 0) { | |
954 | size = sizeof(struct lttcomm_relayd_data_hdr); | |
955 | } | |
956 | ||
957 | /* Only send data header. */ | |
6151a90f | 958 | ret = rsock->sock.ops->sendmsg(&rsock->sock, hdr, size, 0); |
00e2e675 | 959 | if (ret < 0) { |
8994307f | 960 | ret = -errno; |
00e2e675 DG |
961 | goto error; |
962 | } | |
963 | ||
964 | /* | |
965 | * The data MUST be sent right after that command for the receive on the | |
966 | * other end to match the size in the header. | |
967 | */ | |
968 | ||
969 | error: | |
970 | return ret; | |
971 | } | |
173af62f DG |
972 | |
973 | /* | |
974 | * Send close stream command to the relayd. | |
975 | */ | |
6151a90f | 976 | int relayd_send_close_stream(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
173af62f DG |
977 | uint64_t last_net_seq_num) |
978 | { | |
979 | int ret; | |
980 | struct lttcomm_relayd_close_stream msg; | |
981 | struct lttcomm_relayd_generic_reply reply; | |
982 | ||
983 | /* Code flow error. Safety net. */ | |
a0377dfe | 984 | LTTNG_ASSERT(rsock); |
173af62f | 985 | |
77c7c900 | 986 | DBG("Relayd closing stream id %" PRIu64, stream_id); |
173af62f | 987 | |
53efb85a | 988 | memset(&msg, 0, sizeof(msg)); |
173af62f DG |
989 | msg.stream_id = htobe64(stream_id); |
990 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
991 | ||
992 | /* Send command */ | |
6151a90f | 993 | ret = send_command(rsock, RELAYD_CLOSE_STREAM, (void *) &msg, sizeof(msg), 0); |
173af62f DG |
994 | if (ret < 0) { |
995 | goto error; | |
996 | } | |
997 | ||
20275fe8 | 998 | /* Receive response */ |
6151a90f | 999 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
173af62f DG |
1000 | if (ret < 0) { |
1001 | goto error; | |
1002 | } | |
1003 | ||
1004 | reply.ret_code = be32toh(reply.ret_code); | |
1005 | ||
1006 | /* Return session id or negative ret code. */ | |
f73fabfd | 1007 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
1008 | ret = -1; |
1009 | ERR("Relayd close stream replied error %d", reply.ret_code); | |
173af62f DG |
1010 | } else { |
1011 | /* Success */ | |
1012 | ret = 0; | |
1013 | } | |
1014 | ||
77c7c900 | 1015 | DBG("Relayd close stream id %" PRIu64 " successfully", stream_id); |
173af62f DG |
1016 | |
1017 | error: | |
1018 | return ret; | |
1019 | } | |
c8f59ee5 DG |
1020 | |
1021 | /* | |
1022 | * Check for data availability for a given stream id. | |
1023 | * | |
6d805429 | 1024 | * Return 0 if NOT pending, 1 if so and a negative value on error. |
c8f59ee5 | 1025 | */ |
6151a90f | 1026 | int relayd_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, |
c8f59ee5 DG |
1027 | uint64_t last_net_seq_num) |
1028 | { | |
1029 | int ret; | |
6d805429 | 1030 | struct lttcomm_relayd_data_pending msg; |
c8f59ee5 DG |
1031 | struct lttcomm_relayd_generic_reply reply; |
1032 | ||
1033 | /* Code flow error. Safety net. */ | |
a0377dfe | 1034 | LTTNG_ASSERT(rsock); |
c8f59ee5 | 1035 | |
6d805429 | 1036 | DBG("Relayd data pending for stream id %" PRIu64, stream_id); |
c8f59ee5 | 1037 | |
53efb85a | 1038 | memset(&msg, 0, sizeof(msg)); |
c8f59ee5 DG |
1039 | msg.stream_id = htobe64(stream_id); |
1040 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
1041 | ||
1042 | /* Send command */ | |
6151a90f | 1043 | ret = send_command(rsock, RELAYD_DATA_PENDING, (void *) &msg, |
c8f59ee5 DG |
1044 | sizeof(msg), 0); |
1045 | if (ret < 0) { | |
1046 | goto error; | |
1047 | } | |
1048 | ||
20275fe8 | 1049 | /* Receive response */ |
6151a90f | 1050 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
1051 | if (ret < 0) { |
1052 | goto error; | |
1053 | } | |
1054 | ||
1055 | reply.ret_code = be32toh(reply.ret_code); | |
1056 | ||
1057 | /* Return session id or negative ret code. */ | |
1058 | if (reply.ret_code >= LTTNG_OK) { | |
bb63afd9 | 1059 | ERR("Relayd data pending replied error %d", reply.ret_code); |
c8f59ee5 DG |
1060 | } |
1061 | ||
1062 | /* At this point, the ret code is either 1 or 0 */ | |
1063 | ret = reply.ret_code; | |
1064 | ||
6d805429 | 1065 | DBG("Relayd data is %s pending for stream id %" PRIu64, |
9dd26bb9 | 1066 | ret == 1 ? "" : "NOT", stream_id); |
c8f59ee5 DG |
1067 | |
1068 | error: | |
1069 | return ret; | |
1070 | } | |
1071 | ||
1072 | /* | |
1073 | * Check on the relayd side for a quiescent state on the control socket. | |
1074 | */ | |
6151a90f | 1075 | int relayd_quiescent_control(struct lttcomm_relayd_sock *rsock, |
ad7051c0 | 1076 | uint64_t metadata_stream_id) |
c8f59ee5 DG |
1077 | { |
1078 | int ret; | |
ad7051c0 | 1079 | struct lttcomm_relayd_quiescent_control msg; |
c8f59ee5 DG |
1080 | struct lttcomm_relayd_generic_reply reply; |
1081 | ||
1082 | /* Code flow error. Safety net. */ | |
a0377dfe | 1083 | LTTNG_ASSERT(rsock); |
c8f59ee5 DG |
1084 | |
1085 | DBG("Relayd checking quiescent control state"); | |
1086 | ||
53efb85a | 1087 | memset(&msg, 0, sizeof(msg)); |
ad7051c0 DG |
1088 | msg.stream_id = htobe64(metadata_stream_id); |
1089 | ||
c8f59ee5 | 1090 | /* Send command */ |
6151a90f | 1091 | ret = send_command(rsock, RELAYD_QUIESCENT_CONTROL, &msg, sizeof(msg), 0); |
c8f59ee5 DG |
1092 | if (ret < 0) { |
1093 | goto error; | |
1094 | } | |
1095 | ||
20275fe8 | 1096 | /* Receive response */ |
6151a90f | 1097 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
1098 | if (ret < 0) { |
1099 | goto error; | |
1100 | } | |
1101 | ||
1102 | reply.ret_code = be32toh(reply.ret_code); | |
1103 | ||
1104 | /* Return session id or negative ret code. */ | |
1105 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
1106 | ret = -1; |
1107 | ERR("Relayd quiescent control replied error %d", reply.ret_code); | |
c8f59ee5 DG |
1108 | goto error; |
1109 | } | |
1110 | ||
1111 | /* Control socket is quiescent */ | |
6d805429 | 1112 | return 0; |
c8f59ee5 DG |
1113 | |
1114 | error: | |
1115 | return ret; | |
1116 | } | |
f7079f67 DG |
1117 | |
1118 | /* | |
1119 | * Begin a data pending command for a specific session id. | |
1120 | */ | |
6151a90f | 1121 | int relayd_begin_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id) |
f7079f67 DG |
1122 | { |
1123 | int ret; | |
1124 | struct lttcomm_relayd_begin_data_pending msg; | |
1125 | struct lttcomm_relayd_generic_reply reply; | |
1126 | ||
1127 | /* Code flow error. Safety net. */ | |
a0377dfe | 1128 | LTTNG_ASSERT(rsock); |
f7079f67 DG |
1129 | |
1130 | DBG("Relayd begin data pending"); | |
1131 | ||
53efb85a | 1132 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
1133 | msg.session_id = htobe64(id); |
1134 | ||
1135 | /* Send command */ | |
6151a90f | 1136 | ret = send_command(rsock, RELAYD_BEGIN_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
1137 | if (ret < 0) { |
1138 | goto error; | |
1139 | } | |
1140 | ||
20275fe8 | 1141 | /* Receive response */ |
6151a90f | 1142 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
1143 | if (ret < 0) { |
1144 | goto error; | |
1145 | } | |
1146 | ||
1147 | reply.ret_code = be32toh(reply.ret_code); | |
1148 | ||
1149 | /* Return session id or negative ret code. */ | |
1150 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
1151 | ret = -1; |
1152 | ERR("Relayd begin data pending replied error %d", reply.ret_code); | |
f7079f67 DG |
1153 | goto error; |
1154 | } | |
1155 | ||
1156 | return 0; | |
1157 | ||
1158 | error: | |
1159 | return ret; | |
1160 | } | |
1161 | ||
1162 | /* | |
1163 | * End a data pending command for a specific session id. | |
1164 | * | |
1165 | * Return 0 on success and set is_data_inflight to 0 if no data is being | |
1166 | * streamed or 1 if it is the case. | |
1167 | */ | |
6151a90f | 1168 | int relayd_end_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id, |
f7079f67 DG |
1169 | unsigned int *is_data_inflight) |
1170 | { | |
af6c30b5 | 1171 | int ret, recv_ret; |
f7079f67 DG |
1172 | struct lttcomm_relayd_end_data_pending msg; |
1173 | struct lttcomm_relayd_generic_reply reply; | |
1174 | ||
1175 | /* Code flow error. Safety net. */ | |
a0377dfe | 1176 | LTTNG_ASSERT(rsock); |
f7079f67 DG |
1177 | |
1178 | DBG("Relayd end data pending"); | |
1179 | ||
53efb85a | 1180 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
1181 | msg.session_id = htobe64(id); |
1182 | ||
1183 | /* Send command */ | |
6151a90f | 1184 | ret = send_command(rsock, RELAYD_END_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
1185 | if (ret < 0) { |
1186 | goto error; | |
1187 | } | |
1188 | ||
20275fe8 | 1189 | /* Receive response */ |
6151a90f | 1190 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
1191 | if (ret < 0) { |
1192 | goto error; | |
1193 | } | |
1194 | ||
af6c30b5 DG |
1195 | recv_ret = be32toh(reply.ret_code); |
1196 | if (recv_ret < 0) { | |
1197 | ret = recv_ret; | |
f7079f67 DG |
1198 | goto error; |
1199 | } | |
1200 | ||
af6c30b5 | 1201 | *is_data_inflight = recv_ret; |
f7079f67 | 1202 | |
af6c30b5 | 1203 | DBG("Relayd end data pending is data inflight: %d", recv_ret); |
f7079f67 DG |
1204 | |
1205 | return 0; | |
1206 | ||
1207 | error: | |
1208 | return ret; | |
1209 | } | |
1c20f0e2 JD |
1210 | |
1211 | /* | |
1212 | * Send index to the relayd. | |
1213 | */ | |
1214 | int relayd_send_index(struct lttcomm_relayd_sock *rsock, | |
50adc264 | 1215 | struct ctf_packet_index *index, uint64_t relay_stream_id, |
1c20f0e2 JD |
1216 | uint64_t net_seq_num) |
1217 | { | |
1218 | int ret; | |
1219 | struct lttcomm_relayd_index msg; | |
1220 | struct lttcomm_relayd_generic_reply reply; | |
1221 | ||
1222 | /* Code flow error. Safety net. */ | |
a0377dfe | 1223 | LTTNG_ASSERT(rsock); |
1c20f0e2 JD |
1224 | |
1225 | if (rsock->minor < 4) { | |
1226 | DBG("Not sending indexes before protocol 2.4"); | |
1227 | ret = 0; | |
1228 | goto error; | |
1229 | } | |
1230 | ||
1231 | DBG("Relayd sending index for stream ID %" PRIu64, relay_stream_id); | |
1232 | ||
53efb85a | 1233 | memset(&msg, 0, sizeof(msg)); |
1c20f0e2 JD |
1234 | msg.relay_stream_id = htobe64(relay_stream_id); |
1235 | msg.net_seq_num = htobe64(net_seq_num); | |
1236 | ||
1237 | /* The index is already in big endian. */ | |
1238 | msg.packet_size = index->packet_size; | |
1239 | msg.content_size = index->content_size; | |
1240 | msg.timestamp_begin = index->timestamp_begin; | |
1241 | msg.timestamp_end = index->timestamp_end; | |
1242 | msg.events_discarded = index->events_discarded; | |
1243 | msg.stream_id = index->stream_id; | |
1244 | ||
234cd636 JD |
1245 | if (rsock->minor >= 8) { |
1246 | msg.stream_instance_id = index->stream_instance_id; | |
1247 | msg.packet_seq_num = index->packet_seq_num; | |
1248 | } | |
1249 | ||
1c20f0e2 | 1250 | /* Send command */ |
f8f3885c MD |
1251 | ret = send_command(rsock, RELAYD_SEND_INDEX, &msg, |
1252 | lttcomm_relayd_index_len(lttng_to_index_major(rsock->major, | |
1253 | rsock->minor), | |
1254 | lttng_to_index_minor(rsock->major, rsock->minor)), | |
1255 | 0); | |
1c20f0e2 JD |
1256 | if (ret < 0) { |
1257 | goto error; | |
1258 | } | |
1259 | ||
1260 | /* Receive response */ | |
1261 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1262 | if (ret < 0) { | |
1263 | goto error; | |
1264 | } | |
1265 | ||
1266 | reply.ret_code = be32toh(reply.ret_code); | |
1267 | ||
1268 | /* Return session id or negative ret code. */ | |
1269 | if (reply.ret_code != LTTNG_OK) { | |
1270 | ret = -1; | |
1271 | ERR("Relayd send index replied error %d", reply.ret_code); | |
1272 | } else { | |
1273 | /* Success */ | |
1274 | ret = 0; | |
1275 | } | |
1276 | ||
1277 | error: | |
1278 | return ret; | |
1279 | } | |
93ec662e JD |
1280 | |
1281 | /* | |
1282 | * Ask the relay to reset the metadata trace file (regeneration). | |
1283 | */ | |
1284 | int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, | |
1285 | uint64_t stream_id, uint64_t version) | |
1286 | { | |
1287 | int ret; | |
1288 | struct lttcomm_relayd_reset_metadata msg; | |
1289 | struct lttcomm_relayd_generic_reply reply; | |
1290 | ||
1291 | /* Code flow error. Safety net. */ | |
a0377dfe | 1292 | LTTNG_ASSERT(rsock); |
93ec662e JD |
1293 | |
1294 | /* Should have been prevented by the sessiond. */ | |
1295 | if (rsock->minor < 8) { | |
1296 | ERR("Metadata regeneration unsupported before 2.8"); | |
1297 | ret = -1; | |
1298 | goto error; | |
1299 | } | |
1300 | ||
1301 | DBG("Relayd reset metadata stream id %" PRIu64, stream_id); | |
1302 | ||
1303 | memset(&msg, 0, sizeof(msg)); | |
1304 | msg.stream_id = htobe64(stream_id); | |
1305 | msg.version = htobe64(version); | |
1306 | ||
1307 | /* Send command */ | |
1308 | ret = send_command(rsock, RELAYD_RESET_METADATA, (void *) &msg, sizeof(msg), 0); | |
1309 | if (ret < 0) { | |
1310 | goto error; | |
1311 | } | |
1312 | ||
1313 | /* Receive response */ | |
1314 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1315 | if (ret < 0) { | |
1316 | goto error; | |
1317 | } | |
1318 | ||
1319 | reply.ret_code = be32toh(reply.ret_code); | |
1320 | ||
1321 | /* Return session id or negative ret code. */ | |
1322 | if (reply.ret_code != LTTNG_OK) { | |
1323 | ret = -1; | |
1324 | ERR("Relayd reset metadata replied error %d", reply.ret_code); | |
1325 | } else { | |
1326 | /* Success */ | |
1327 | ret = 0; | |
1328 | } | |
1329 | ||
1330 | DBG("Relayd reset metadata stream id %" PRIu64 " successfully", stream_id); | |
1331 | ||
1332 | error: | |
1333 | return ret; | |
1334 | } | |
a1ae2ea5 | 1335 | |
c35f9726 | 1336 | int relayd_rotate_streams(struct lttcomm_relayd_sock *sock, |
ebb29c10 | 1337 | unsigned int stream_count, const uint64_t *new_chunk_id, |
c35f9726 | 1338 | const struct relayd_stream_rotation_position *positions) |
d73bf3d7 JD |
1339 | { |
1340 | int ret; | |
c35f9726 JG |
1341 | unsigned int i; |
1342 | struct lttng_dynamic_buffer payload; | |
1343 | struct lttcomm_relayd_generic_reply reply = {}; | |
6d15ee45 | 1344 | struct lttcomm_relayd_rotate_streams msg; |
c35f9726 JG |
1345 | char new_chunk_id_buf[MAX_INT_DEC_LEN(*new_chunk_id)] = {}; |
1346 | const char *new_chunk_id_str; | |
d73bf3d7 | 1347 | |
6d15ee45 JG |
1348 | msg.stream_count = htobe32((uint32_t) stream_count); |
1349 | msg.new_chunk_id = (typeof(msg.new_chunk_id)){ | |
1350 | .is_set = !!new_chunk_id, | |
1351 | .value = htobe64(new_chunk_id ? *new_chunk_id : 0), | |
1352 | }; | |
1353 | ||
070b6a86 MD |
1354 | if (!relayd_supports_chunks(sock)) { |
1355 | DBG("Refusing to rotate remote streams: relayd does not support chunks"); | |
1356 | return 0; | |
1357 | } | |
1358 | ||
c35f9726 | 1359 | lttng_dynamic_buffer_init(&payload); |
d73bf3d7 | 1360 | |
c35f9726 | 1361 | /* Code flow error. Safety net. */ |
a0377dfe | 1362 | LTTNG_ASSERT(sock); |
d73bf3d7 | 1363 | |
c35f9726 JG |
1364 | if (new_chunk_id) { |
1365 | ret = snprintf(new_chunk_id_buf, sizeof(new_chunk_id_buf), | |
1366 | "%" PRIu64, *new_chunk_id); | |
1367 | if (ret == -1 || ret >= sizeof(new_chunk_id_buf)) { | |
1368 | new_chunk_id_str = "formatting error"; | |
1369 | } else { | |
1370 | new_chunk_id_str = new_chunk_id_buf; | |
1371 | } | |
1372 | } else { | |
1373 | new_chunk_id_str = "none"; | |
d73bf3d7 JD |
1374 | } |
1375 | ||
c35f9726 JG |
1376 | DBG("Preparing \"rotate streams\" command payload: new_chunk_id = %s, stream_count = %u", |
1377 | new_chunk_id_str, stream_count); | |
d73bf3d7 | 1378 | |
c35f9726 JG |
1379 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); |
1380 | if (ret) { | |
1381 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
d73bf3d7 JD |
1382 | goto error; |
1383 | } | |
1384 | ||
c35f9726 JG |
1385 | for (i = 0; i < stream_count; i++) { |
1386 | const struct relayd_stream_rotation_position *position = | |
1387 | &positions[i]; | |
1388 | const struct lttcomm_relayd_stream_rotation_position comm_position = { | |
1389 | .stream_id = htobe64(position->stream_id), | |
1390 | .rotate_at_seq_num = htobe64( | |
1391 | position->rotate_at_seq_num), | |
1392 | }; | |
1393 | ||
a269202e | 1394 | DBG("Rotate stream %" PRIu64 " at sequence number %" PRIu64, |
c35f9726 JG |
1395 | position->stream_id, |
1396 | position->rotate_at_seq_num); | |
1397 | ret = lttng_dynamic_buffer_append(&payload, &comm_position, | |
1398 | sizeof(comm_position)); | |
1399 | if (ret) { | |
1400 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
1401 | goto error; | |
1402 | } | |
1403 | } | |
d73bf3d7 JD |
1404 | |
1405 | /* Send command. */ | |
c35f9726 JG |
1406 | ret = send_command(sock, RELAYD_ROTATE_STREAMS, payload.data, |
1407 | payload.size, 0); | |
d73bf3d7 | 1408 | if (ret < 0) { |
c35f9726 | 1409 | ERR("Failed to send \"rotate stream\" command"); |
d73bf3d7 JD |
1410 | goto error; |
1411 | } | |
1412 | ||
1413 | /* Receive response. */ | |
c35f9726 | 1414 | ret = recv_reply(sock, &reply, sizeof(reply)); |
d73bf3d7 | 1415 | if (ret < 0) { |
c35f9726 | 1416 | ERR("Failed to receive \"rotate streams\" command reply"); |
d73bf3d7 JD |
1417 | goto error; |
1418 | } | |
1419 | ||
1420 | reply.ret_code = be32toh(reply.ret_code); | |
d73bf3d7 JD |
1421 | if (reply.ret_code != LTTNG_OK) { |
1422 | ret = -1; | |
c35f9726 | 1423 | ERR("Relayd rotate streams replied error %d", reply.ret_code); |
d73bf3d7 JD |
1424 | } else { |
1425 | /* Success. */ | |
1426 | ret = 0; | |
c35f9726 | 1427 | DBG("Relayd rotated streams successfully"); |
d73bf3d7 JD |
1428 | } |
1429 | ||
1430 | error: | |
c35f9726 | 1431 | lttng_dynamic_buffer_reset(&payload); |
d73bf3d7 JD |
1432 | return ret; |
1433 | } | |
e5add6d0 JG |
1434 | |
1435 | int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock, | |
1436 | struct lttng_trace_chunk *chunk) | |
1437 | { | |
1438 | int ret = 0; | |
1439 | enum lttng_trace_chunk_status status; | |
1440 | struct lttcomm_relayd_create_trace_chunk msg = {}; | |
1441 | struct lttcomm_relayd_generic_reply reply = {}; | |
1442 | struct lttng_dynamic_buffer payload; | |
1443 | uint64_t chunk_id; | |
1444 | time_t creation_timestamp; | |
1445 | const char *chunk_name; | |
1446 | size_t chunk_name_length; | |
913a542b | 1447 | bool overridden_name; |
e5add6d0 JG |
1448 | |
1449 | lttng_dynamic_buffer_init(&payload); | |
1450 | ||
070b6a86 MD |
1451 | if (!relayd_supports_chunks(sock)) { |
1452 | DBG("Refusing to create remote trace chunk: relayd does not support chunks"); | |
1453 | goto end; | |
1454 | } | |
1455 | ||
e5add6d0 JG |
1456 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1457 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1458 | ret = -1; | |
1459 | goto end; | |
1460 | } | |
1461 | ||
1462 | status = lttng_trace_chunk_get_creation_timestamp( | |
1463 | chunk, &creation_timestamp); | |
1464 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1465 | ret = -1; | |
1466 | goto end; | |
1467 | } | |
1468 | ||
1469 | status = lttng_trace_chunk_get_name( | |
913a542b | 1470 | chunk, &chunk_name, &overridden_name); |
e5add6d0 JG |
1471 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK && |
1472 | status != LTTNG_TRACE_CHUNK_STATUS_NONE) { | |
1473 | ret = -1; | |
1474 | goto end; | |
1475 | } | |
1476 | ||
913a542b | 1477 | chunk_name_length = overridden_name ? (strlen(chunk_name) + 1) : 0; |
c15e2d3d JG |
1478 | msg.chunk_id = htobe64(chunk_id); |
1479 | msg.creation_timestamp = htobe64((uint64_t) creation_timestamp); | |
1480 | msg.override_name_length = htobe32((uint32_t) chunk_name_length); | |
e5add6d0 JG |
1481 | |
1482 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); | |
1483 | if (ret) { | |
1484 | goto end; | |
1485 | } | |
1486 | if (chunk_name_length) { | |
1487 | ret = lttng_dynamic_buffer_append( | |
1488 | &payload, chunk_name, chunk_name_length); | |
1489 | if (ret) { | |
1490 | goto end; | |
1491 | } | |
1492 | } | |
1493 | ||
bbc4768c JG |
1494 | ret = send_command(sock, RELAYD_CREATE_TRACE_CHUNK, payload.data, |
1495 | payload.size, 0); | |
e5add6d0 JG |
1496 | if (ret < 0) { |
1497 | ERR("Failed to send trace chunk creation command to relay daemon"); | |
1498 | goto end; | |
1499 | } | |
1500 | ||
1501 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1502 | if (ret < 0) { | |
1503 | ERR("Failed to receive relay daemon trace chunk creation command reply"); | |
1504 | goto end; | |
1505 | } | |
1506 | ||
1507 | reply.ret_code = be32toh(reply.ret_code); | |
1508 | if (reply.ret_code != LTTNG_OK) { | |
1509 | ret = -1; | |
1510 | ERR("Relayd trace chunk create replied error %d", | |
1511 | reply.ret_code); | |
1512 | } else { | |
1513 | ret = 0; | |
1514 | DBG("Relayd successfully created trace chunk: chunk_id = %" PRIu64, | |
1515 | chunk_id); | |
1516 | } | |
1517 | ||
1518 | end: | |
1519 | lttng_dynamic_buffer_reset(&payload); | |
1520 | return ret; | |
1521 | } | |
bbc4768c JG |
1522 | |
1523 | int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock, | |
ecd1a12f MD |
1524 | struct lttng_trace_chunk *chunk, |
1525 | char *path) | |
bbc4768c JG |
1526 | { |
1527 | int ret = 0; | |
1528 | enum lttng_trace_chunk_status status; | |
1529 | struct lttcomm_relayd_close_trace_chunk msg = {}; | |
ecd1a12f | 1530 | struct lttcomm_relayd_close_trace_chunk_reply reply = {}; |
bbc4768c JG |
1531 | uint64_t chunk_id; |
1532 | time_t close_timestamp; | |
1533 | LTTNG_OPTIONAL(enum lttng_trace_chunk_command_type) close_command = {}; | |
1534 | ||
070b6a86 MD |
1535 | if (!relayd_supports_chunks(sock)) { |
1536 | DBG("Refusing to close remote trace chunk: relayd does not support chunks"); | |
1537 | goto end; | |
1538 | } | |
1539 | ||
bbc4768c JG |
1540 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1541 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1542 | ERR("Failed to get trace chunk id"); | |
1543 | ret = -1; | |
1544 | goto end; | |
1545 | } | |
1546 | ||
1547 | status = lttng_trace_chunk_get_close_timestamp(chunk, &close_timestamp); | |
1548 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1549 | ERR("Failed to get trace chunk close timestamp"); | |
1550 | ret = -1; | |
1551 | goto end; | |
1552 | } | |
1553 | ||
1554 | status = lttng_trace_chunk_get_close_command(chunk, | |
1555 | &close_command.value); | |
1556 | switch (status) { | |
1557 | case LTTNG_TRACE_CHUNK_STATUS_OK: | |
1558 | close_command.is_set = 1; | |
1559 | break; | |
1560 | case LTTNG_TRACE_CHUNK_STATUS_NONE: | |
1561 | break; | |
1562 | default: | |
1563 | ERR("Failed to get trace chunk close command"); | |
1564 | ret = -1; | |
1565 | goto end; | |
1566 | } | |
1567 | ||
1568 | msg = (typeof(msg)){ | |
1569 | .chunk_id = htobe64(chunk_id), | |
1570 | .close_timestamp = htobe64((uint64_t) close_timestamp), | |
1571 | .close_command = { | |
bbc4768c | 1572 | .is_set = close_command.is_set, |
55caead7 | 1573 | .value = htobe32((uint32_t) close_command.value), |
bbc4768c JG |
1574 | }, |
1575 | }; | |
1576 | ||
1577 | ret = send_command(sock, RELAYD_CLOSE_TRACE_CHUNK, &msg, sizeof(msg), | |
1578 | 0); | |
1579 | if (ret < 0) { | |
1580 | ERR("Failed to send trace chunk close command to relay daemon"); | |
1581 | goto end; | |
1582 | } | |
1583 | ||
1584 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1585 | if (ret < 0) { | |
1586 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1587 | goto end; | |
1588 | } | |
1589 | ||
ecd1a12f MD |
1590 | reply.path_length = be32toh(reply.path_length); |
1591 | if (reply.path_length >= LTTNG_PATH_MAX) { | |
1592 | ERR("Chunk path too long"); | |
1593 | ret = -1; | |
1594 | goto end; | |
1595 | } | |
1596 | ||
1597 | ret = recv_reply(sock, path, reply.path_length); | |
1598 | if (ret < 0) { | |
1599 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1600 | goto end; | |
1601 | } | |
1602 | if (path[reply.path_length - 1] != '\0') { | |
1603 | ERR("Invalid trace chunk path returned by relay daemon (not null-terminated)"); | |
1604 | ret = -1; | |
1605 | goto end; | |
1606 | } | |
1607 | ||
1608 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1609 | if (reply.generic.ret_code != LTTNG_OK) { | |
bbc4768c JG |
1610 | ret = -1; |
1611 | ERR("Relayd trace chunk close replied error %d", | |
ecd1a12f | 1612 | reply.generic.ret_code); |
bbc4768c JG |
1613 | } else { |
1614 | ret = 0; | |
1615 | DBG("Relayd successfully closed trace chunk: chunk_id = %" PRIu64, | |
1616 | chunk_id); | |
1617 | } | |
1618 | end: | |
1619 | return ret; | |
1620 | } | |
c35f9726 JG |
1621 | |
1622 | int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock, | |
1623 | uint64_t chunk_id, bool *chunk_exists) | |
1624 | { | |
1625 | int ret = 0; | |
1626 | struct lttcomm_relayd_trace_chunk_exists msg = {}; | |
1627 | struct lttcomm_relayd_trace_chunk_exists_reply reply = {}; | |
1628 | ||
070b6a86 MD |
1629 | if (!relayd_supports_chunks(sock)) { |
1630 | DBG("Refusing to check for trace chunk existence: relayd does not support chunks"); | |
caa15afd JR |
1631 | /* The chunk will never exist */ |
1632 | *chunk_exists = false; | |
070b6a86 MD |
1633 | goto end; |
1634 | } | |
1635 | ||
c35f9726 JG |
1636 | msg = (typeof(msg)){ |
1637 | .chunk_id = htobe64(chunk_id), | |
1638 | }; | |
1639 | ||
1640 | ret = send_command(sock, RELAYD_TRACE_CHUNK_EXISTS, &msg, sizeof(msg), | |
1641 | 0); | |
1642 | if (ret < 0) { | |
1643 | ERR("Failed to send trace chunk exists command to relay daemon"); | |
1644 | goto end; | |
1645 | } | |
1646 | ||
1647 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1648 | if (ret < 0) { | |
1649 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1650 | goto end; | |
1651 | } | |
1652 | ||
1653 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1654 | if (reply.generic.ret_code != LTTNG_OK) { | |
1655 | ret = -1; | |
1656 | ERR("Relayd trace chunk close replied error %d", | |
1657 | reply.generic.ret_code); | |
1658 | } else { | |
1659 | ret = 0; | |
1660 | DBG("Relayd successfully checked trace chunk existence: chunk_id = %" PRIu64 | |
1661 | ", exists = %s", chunk_id, | |
1662 | reply.trace_chunk_exists ? "true" : "false"); | |
1663 | *chunk_exists = !!reply.trace_chunk_exists; | |
1664 | } | |
1665 | end: | |
1666 | return ret; | |
1667 | } | |
8614e600 | 1668 | |
f4c5b127 | 1669 | enum lttng_error_code relayd_get_configuration(struct lttcomm_relayd_sock *sock, |
8614e600 | 1670 | uint64_t query_flags, |
f4c5b127 JR |
1671 | uint64_t& result_flags, |
1672 | uint64_t *trace_format_query_results) | |
8614e600 | 1673 | { |
f4c5b127 JR |
1674 | int ret; |
1675 | enum lttng_error_code ret_code = LTTNG_OK; | |
1676 | struct lttcomm_relayd_get_configuration msg = {}; | |
8614e600 | 1677 | struct lttcomm_relayd_get_configuration_reply reply = {}; |
f4c5b127 JR |
1678 | lttng_dynamic_buffer buffer; |
1679 | bool requesting_trace_format = query_flags & | |
1680 | LTTCOMM_RELAYD_CONFIGURATION_QUERY_FLAG_SUPPORTED_TRACE_FORMAT; | |
1681 | ||
1682 | lttng_dynamic_buffer_init(&buffer); | |
1683 | ||
1684 | assert(!(query_flags & ~LTTCOMM_RELAYD_CONFIGURATION_QUERY_FLAG_MASK)); | |
1685 | assert(!(requesting_trace_format && !trace_format_query_results)); | |
8614e600 MD |
1686 | |
1687 | if (!relayd_supports_get_configuration(sock)) { | |
1688 | DBG("Refusing to get relayd configuration (unsupported by relayd)"); | |
f4c5b127 JR |
1689 | result_flags = 0; |
1690 | if (trace_format_query_results) { | |
1691 | *trace_format_query_results = | |
1692 | LTTCOMM_RELAYD_CONFIGURATION_TRACE_FORMAT_SUPPORTED_CTF1; | |
1693 | } | |
8614e600 MD |
1694 | goto end; |
1695 | } | |
1696 | ||
f4c5b127 JR |
1697 | if (requesting_trace_format && !relayd_supports_get_configuration_trace_format(sock)) { |
1698 | /* | |
1699 | * Provide default value for that query since lttng-relayd does | |
1700 | * not know this query type. | |
1701 | */ | |
1702 | if (trace_format_query_results) { | |
1703 | *trace_format_query_results = | |
1704 | LTTCOMM_RELAYD_CONFIGURATION_TRACE_FORMAT_SUPPORTED_CTF1; | |
1705 | } | |
1706 | /* Remove from the query set. */ | |
1707 | query_flags &= ~LTTCOMM_RELAYD_CONFIGURATION_QUERY_FLAG_SUPPORTED_TRACE_FORMAT; | |
1708 | requesting_trace_format = false; | |
1709 | } | |
1710 | ||
1711 | msg.query_flags = htobe64(query_flags); | |
1712 | ||
1713 | ret = send_command(sock, RELAYD_GET_CONFIGURATION, &msg, sizeof(msg), 0); | |
8614e600 MD |
1714 | if (ret < 0) { |
1715 | ERR("Failed to send get configuration command to relay daemon"); | |
f4c5b127 | 1716 | ret_code = LTTNG_ERR_RELAYD_CONNECT_FAIL; |
8614e600 MD |
1717 | goto end; |
1718 | } | |
1719 | ||
1720 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1721 | if (ret < 0) { | |
1722 | ERR("Failed to receive relay daemon get configuration command reply"); | |
f4c5b127 | 1723 | ret_code = LTTNG_ERR_RELAYD_CONNECT_FAIL; |
8614e600 MD |
1724 | goto end; |
1725 | } | |
1726 | ||
f4c5b127 JR |
1727 | ret_code = static_cast<enum lttng_error_code>(be32toh(reply.generic.ret_code)); |
1728 | if (ret_code != LTTNG_OK) { | |
1729 | ERR("Relayd get configuration replied error %d", ret_code); | |
1730 | goto end; | |
8614e600 | 1731 | } |
f4c5b127 JR |
1732 | |
1733 | result_flags = be64toh(reply.relayd_configuration_flags); | |
1734 | DBG("Relayd successfully got configuration: query_flags = %" PRIu64 | |
1735 | ", results_flags = %" PRIu64, | |
1736 | query_flags, result_flags); | |
1737 | ||
1738 | if (!requesting_trace_format) { | |
1739 | ret_code = LTTNG_OK; | |
1740 | goto end; | |
1741 | } | |
1742 | ||
1743 | /* Receive trace formats */ | |
1744 | { | |
1745 | lttcomm_relayd_get_configuration_specialized_query_reply query_flag_reply = {}; | |
1746 | ret = recv_reply(sock, &query_flag_reply, sizeof(query_flag_reply)); | |
1747 | if (ret < 0) { | |
1748 | ERR("Failed to receive relay daemon get configuration query flag data"); | |
1749 | ret_code = LTTNG_ERR_RELAYD_CONNECT_FAIL; | |
1750 | goto end; | |
1751 | } | |
1752 | ||
1753 | query_flag_reply.query_flag = be64toh(query_flag_reply.query_flag); | |
1754 | LTTNG_ASSERT(query_flag_reply.query_flag & | |
1755 | LTTCOMM_RELAYD_CONFIGURATION_QUERY_FLAG_SUPPORTED_TRACE_FORMAT); | |
1756 | ||
1757 | query_flag_reply.payload_len = be64toh(query_flag_reply.payload_len); | |
1758 | LTTNG_ASSERT(query_flag_reply.payload_len == sizeof(uint64_t)); | |
1759 | ||
1760 | lttng_dynamic_buffer_set_size(&buffer, query_flag_reply.payload_len); | |
1761 | ||
1762 | ret = recv_reply(sock, buffer.data, query_flag_reply.payload_len); | |
1763 | if (ret < 0) { | |
1764 | ret_code = LTTNG_ERR_RELAYD_CONNECT_FAIL; | |
1765 | ERR("Failed to receive configuration dynamic payload for flag TODO"); | |
1766 | goto end; | |
1767 | } | |
1768 | ||
1769 | *trace_format_query_results = be64toh(*(uint64_t *) buffer.data); | |
1770 | } | |
1771 | ||
1772 | ret_code = LTTNG_OK; | |
1773 | ||
8614e600 | 1774 | end: |
f4c5b127 JR |
1775 | lttng_dynamic_buffer_reset(&buffer); |
1776 | return ret_code; | |
8614e600 | 1777 | } |