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 |
28ab034a | 9 | #include "relayd.hpp" |
00e2e675 | 10 | |
c9e313bc | 11 | #include <common/common.hpp> |
c9e313bc SM |
12 | #include <common/compat/endian.hpp> |
13 | #include <common/compat/string.hpp> | |
28ab034a | 14 | #include <common/defaults.hpp> |
c9e313bc | 15 | #include <common/index/ctf-index.hpp> |
28ab034a | 16 | #include <common/sessiond-comm/relayd.hpp> |
c9e313bc | 17 | #include <common/string-utils/format.hpp> |
28ab034a | 18 | #include <common/trace-chunk.hpp> |
00e2e675 | 19 | |
28ab034a JG |
20 | #include <inttypes.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <sys/stat.h> | |
00e2e675 | 25 | |
28ab034a | 26 | static bool relayd_supports_chunks(const struct lttcomm_relayd_sock *sock) |
070b6a86 MD |
27 | { |
28 | if (sock->major > 2) { | |
29 | return true; | |
30 | } else if (sock->major == 2 && sock->minor >= 11) { | |
31 | return true; | |
32 | } | |
33 | return false; | |
34 | } | |
35 | ||
28ab034a | 36 | static bool relayd_supports_get_configuration(const struct lttcomm_relayd_sock *sock) |
8614e600 MD |
37 | { |
38 | if (sock->major > 2) { | |
39 | return true; | |
40 | } else if (sock->major == 2 && sock->minor >= 12) { | |
41 | return true; | |
42 | } | |
43 | return false; | |
44 | } | |
45 | ||
00e2e675 DG |
46 | /* |
47 | * Send command. Fill up the header and append the data. | |
48 | */ | |
6151a90f | 49 | static int send_command(struct lttcomm_relayd_sock *rsock, |
28ab034a JG |
50 | enum lttcomm_relayd_command cmd, |
51 | const void *data, | |
52 | size_t size, | |
53 | int flags) | |
00e2e675 DG |
54 | { |
55 | int ret; | |
56 | struct lttcomm_relayd_hdr header; | |
57 | char *buf; | |
58 | uint64_t buf_size = sizeof(header); | |
59 | ||
f96e4545 MD |
60 | if (rsock->sock.fd < 0) { |
61 | return -ECONNRESET; | |
62 | } | |
63 | ||
00e2e675 DG |
64 | if (data) { |
65 | buf_size += size; | |
66 | } | |
67 | ||
64803277 | 68 | buf = calloc<char>(buf_size); |
cd9adb8b | 69 | if (buf == nullptr) { |
00e2e675 DG |
70 | PERROR("zmalloc relayd send command buf"); |
71 | ret = -1; | |
72 | goto alloc_error; | |
73 | } | |
74 | ||
53efb85a | 75 | memset(&header, 0, sizeof(header)); |
00e2e675 DG |
76 | header.cmd = htobe32(cmd); |
77 | header.data_size = htobe64(size); | |
78 | ||
79 | /* Zeroed for now since not used. */ | |
80 | header.cmd_version = 0; | |
81 | header.circuit_id = 0; | |
82 | ||
83 | /* Prepare buffer to send. */ | |
84 | memcpy(buf, &header, sizeof(header)); | |
85 | if (data) { | |
86 | memcpy(buf + sizeof(header), data, size); | |
87 | } | |
88 | ||
00e71031 | 89 | DBG3("Relayd sending command %s of size %" PRIu64, |
28ab034a JG |
90 | lttcomm_relayd_command_str(cmd), |
91 | buf_size); | |
6151a90f | 92 | ret = rsock->sock.ops->sendmsg(&rsock->sock, buf, buf_size, flags); |
00e2e675 | 93 | if (ret < 0) { |
00e71031 | 94 | PERROR("Failed to send command %s of size %" PRIu64, |
28ab034a JG |
95 | lttcomm_relayd_command_str(cmd), |
96 | buf_size); | |
97 | ret = rsock->sock.ops->sendmsg(&rsock->sock, buf, buf_size, flags); | |
8994307f | 98 | ret = -errno; |
00e2e675 DG |
99 | goto error; |
100 | } | |
00e2e675 DG |
101 | error: |
102 | free(buf); | |
103 | alloc_error: | |
104 | return ret; | |
105 | } | |
106 | ||
107 | /* | |
108 | * Receive reply data on socket. This MUST be call after send_command or else | |
109 | * could result in unexpected behavior(s). | |
110 | */ | |
6151a90f | 111 | static int recv_reply(struct lttcomm_relayd_sock *rsock, void *data, size_t size) |
00e2e675 DG |
112 | { |
113 | int ret; | |
114 | ||
f96e4545 MD |
115 | if (rsock->sock.fd < 0) { |
116 | return -ECONNRESET; | |
117 | } | |
118 | ||
8fd623e0 | 119 | DBG3("Relayd waiting for reply of size %zu", size); |
00e2e675 | 120 | |
6151a90f | 121 | ret = rsock->sock.ops->recvmsg(&rsock->sock, data, size, 0); |
20275fe8 DG |
122 | if (ret <= 0 || ret != size) { |
123 | if (ret == 0) { | |
124 | /* Orderly shutdown. */ | |
6151a90f | 125 | DBG("Socket %d has performed an orderly shutdown", rsock->sock.fd); |
20275fe8 | 126 | } else { |
8fd623e0 | 127 | DBG("Receiving reply failed on sock %d for size %zu with ret %d", |
28ab034a JG |
128 | rsock->sock.fd, |
129 | size, | |
130 | ret); | |
20275fe8 DG |
131 | } |
132 | /* Always return -1 here and the caller can use errno. */ | |
133 | ret = -1; | |
00e2e675 DG |
134 | goto error; |
135 | } | |
136 | ||
137 | error: | |
138 | return ret; | |
139 | } | |
140 | ||
d3e2ba59 | 141 | /* |
6fa5fe7c MD |
142 | * Starting from 2.11, RELAYD_CREATE_SESSION payload (session_name, |
143 | * hostname, and base_path) have no length restriction on the sender side. | |
f86f6389 JR |
144 | * Length for both payloads is stored in the msg struct. A new dynamic size |
145 | * payload size is introduced. | |
146 | */ | |
147 | static int relayd_create_session_2_11(struct lttcomm_relayd_sock *rsock, | |
28ab034a JG |
148 | const char *session_name, |
149 | const char *hostname, | |
150 | const char *base_path, | |
151 | int session_live_timer, | |
152 | unsigned int snapshot, | |
153 | uint64_t sessiond_session_id, | |
154 | const lttng_uuid& sessiond_uuid, | |
155 | const uint64_t *current_chunk_id, | |
156 | time_t creation_time, | |
157 | bool session_name_contains_creation_time, | |
158 | struct lttcomm_relayd_create_session_reply_2_11 *reply, | |
159 | char *output_path) | |
f86f6389 JR |
160 | { |
161 | int ret; | |
cd9adb8b | 162 | struct lttcomm_relayd_create_session_2_11 *msg = nullptr; |
f86f6389 JR |
163 | size_t session_name_len; |
164 | size_t hostname_len; | |
6fa5fe7c | 165 | size_t base_path_len; |
f86f6389 | 166 | size_t msg_length; |
6fa5fe7c | 167 | char *dst; |
f86f6389 | 168 | |
46ef2188 MD |
169 | if (!base_path) { |
170 | base_path = ""; | |
171 | } | |
172 | /* The three names are sent with a '\0' delimiter between them. */ | |
f86f6389 JR |
173 | session_name_len = strlen(session_name) + 1; |
174 | hostname_len = strlen(hostname) + 1; | |
17e736a5 | 175 | base_path_len = strlen(base_path) + 1; |
f86f6389 | 176 | |
6fa5fe7c | 177 | msg_length = sizeof(*msg) + session_name_len + hostname_len + base_path_len; |
64803277 | 178 | msg = zmalloc<lttcomm_relayd_create_session_2_11>(msg_length); |
f86f6389 JR |
179 | if (!msg) { |
180 | PERROR("zmalloc create_session_2_11 command message"); | |
181 | ret = -1; | |
182 | goto error; | |
183 | } | |
184 | ||
a0377dfe | 185 | LTTNG_ASSERT(session_name_len <= UINT32_MAX); |
f86f6389 JR |
186 | msg->session_name_len = htobe32(session_name_len); |
187 | ||
a0377dfe | 188 | LTTNG_ASSERT(hostname_len <= UINT32_MAX); |
f86f6389 JR |
189 | msg->hostname_len = htobe32(hostname_len); |
190 | ||
a0377dfe | 191 | LTTNG_ASSERT(base_path_len <= UINT32_MAX); |
6fa5fe7c MD |
192 | msg->base_path_len = htobe32(base_path_len); |
193 | ||
194 | dst = msg->names; | |
195 | if (lttng_strncpy(dst, session_name, session_name_len)) { | |
196 | ret = -1; | |
197 | goto error; | |
198 | } | |
199 | dst += session_name_len; | |
200 | if (lttng_strncpy(dst, hostname, hostname_len)) { | |
f86f6389 JR |
201 | ret = -1; |
202 | goto error; | |
203 | } | |
6fa5fe7c | 204 | dst += hostname_len; |
36f9f13b | 205 | if (lttng_strncpy(dst, base_path, base_path_len)) { |
f86f6389 JR |
206 | ret = -1; |
207 | goto error; | |
208 | } | |
209 | ||
210 | msg->live_timer = htobe32(session_live_timer); | |
211 | msg->snapshot = !!snapshot; | |
212 | ||
328c2fe7 | 213 | std::copy(sessiond_uuid.begin(), sessiond_uuid.end(), msg->sessiond_uuid); |
658f12fa | 214 | msg->session_id = htobe64(sessiond_session_id); |
46ef2188 | 215 | msg->session_name_contains_creation_time = session_name_contains_creation_time; |
f39bd140 | 216 | if (current_chunk_id) { |
28ab034a | 217 | LTTNG_OPTIONAL_SET(&msg->current_chunk_id, htobe64(*current_chunk_id)); |
f39bd140 JG |
218 | } |
219 | ||
db1da059 JG |
220 | msg->creation_time = htobe64((uint64_t) creation_time); |
221 | ||
f86f6389 JR |
222 | /* Send command */ |
223 | ret = send_command(rsock, RELAYD_CREATE_SESSION, msg, msg_length, 0); | |
224 | if (ret < 0) { | |
225 | goto error; | |
226 | } | |
ecd1a12f MD |
227 | /* Receive response */ |
228 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
229 | if (ret < 0) { | |
230 | goto error; | |
231 | } | |
232 | reply->generic.session_id = be64toh(reply->generic.session_id); | |
233 | reply->generic.ret_code = be32toh(reply->generic.ret_code); | |
234 | reply->output_path_length = be32toh(reply->output_path_length); | |
235 | if (reply->output_path_length >= LTTNG_PATH_MAX) { | |
28ab034a JG |
236 | ERR("Invalid session output path length in reply (%" PRIu32 |
237 | " bytes) exceeds maximal allowed length (%d bytes)", | |
238 | reply->output_path_length, | |
239 | LTTNG_PATH_MAX); | |
ecd1a12f MD |
240 | ret = -1; |
241 | goto error; | |
242 | } | |
243 | ret = recv_reply(rsock, output_path, reply->output_path_length); | |
244 | if (ret < 0) { | |
245 | goto error; | |
246 | } | |
f86f6389 JR |
247 | error: |
248 | free(msg); | |
249 | return ret; | |
250 | } | |
251 | /* | |
252 | * From 2.4 to 2.10, RELAYD_CREATE_SESSION takes additional parameters to | |
d3e2ba59 JD |
253 | * support the live reading capability. |
254 | */ | |
255 | static int relayd_create_session_2_4(struct lttcomm_relayd_sock *rsock, | |
28ab034a JG |
256 | const char *session_name, |
257 | const char *hostname, | |
258 | int session_live_timer, | |
259 | unsigned int snapshot, | |
260 | struct lttcomm_relayd_status_session *reply) | |
d3e2ba59 JD |
261 | { |
262 | int ret; | |
263 | struct lttcomm_relayd_create_session_2_4 msg; | |
264 | ||
28ab034a | 265 | if (lttng_strncpy(msg.session_name, session_name, sizeof(msg.session_name))) { |
246777db MD |
266 | ret = -1; |
267 | goto error; | |
268 | } | |
3a13ffd5 | 269 | if (lttng_strncpy(msg.hostname, hostname, sizeof(msg.hostname))) { |
246777db MD |
270 | ret = -1; |
271 | goto error; | |
272 | } | |
d3e2ba59 | 273 | msg.live_timer = htobe32(session_live_timer); |
7d2f7452 | 274 | msg.snapshot = htobe32(snapshot); |
d3e2ba59 JD |
275 | |
276 | /* Send command */ | |
277 | ret = send_command(rsock, RELAYD_CREATE_SESSION, &msg, sizeof(msg), 0); | |
278 | if (ret < 0) { | |
279 | goto error; | |
280 | } | |
281 | ||
ecd1a12f MD |
282 | /* Receive response */ |
283 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
284 | if (ret < 0) { | |
285 | goto error; | |
286 | } | |
287 | reply->session_id = be64toh(reply->session_id); | |
288 | reply->ret_code = be32toh(reply->ret_code); | |
d3e2ba59 JD |
289 | error: |
290 | return ret; | |
291 | } | |
292 | ||
293 | /* | |
294 | * RELAYD_CREATE_SESSION from 2.1 to 2.3. | |
295 | */ | |
ecd1a12f | 296 | static int relayd_create_session_2_1(struct lttcomm_relayd_sock *rsock, |
28ab034a | 297 | struct lttcomm_relayd_status_session *reply) |
d3e2ba59 JD |
298 | { |
299 | int ret; | |
300 | ||
301 | /* Send command */ | |
cd9adb8b | 302 | ret = send_command(rsock, RELAYD_CREATE_SESSION, nullptr, 0, 0); |
d3e2ba59 JD |
303 | if (ret < 0) { |
304 | goto error; | |
305 | } | |
306 | ||
ecd1a12f MD |
307 | /* Receive response */ |
308 | ret = recv_reply(rsock, reply, sizeof(*reply)); | |
309 | if (ret < 0) { | |
310 | goto error; | |
311 | } | |
312 | reply->session_id = be64toh(reply->session_id); | |
313 | reply->ret_code = be32toh(reply->ret_code); | |
d3e2ba59 JD |
314 | error: |
315 | return ret; | |
316 | } | |
317 | ||
c5b6f4f0 DG |
318 | /* |
319 | * Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and | |
320 | * set session_id of the relayd if we have a successful reply from the relayd. | |
321 | * | |
20275fe8 DG |
322 | * On success, return 0 else a negative value which is either an errno error or |
323 | * a lttng error code from the relayd. | |
c5b6f4f0 | 324 | */ |
fb9a95c4 | 325 | int relayd_create_session(struct lttcomm_relayd_sock *rsock, |
28ab034a JG |
326 | uint64_t *relayd_session_id, |
327 | const char *session_name, | |
328 | const char *hostname, | |
329 | const char *base_path, | |
330 | int session_live_timer, | |
331 | unsigned int snapshot, | |
332 | uint64_t sessiond_session_id, | |
333 | const lttng_uuid& sessiond_uuid, | |
334 | const uint64_t *current_chunk_id, | |
335 | time_t creation_time, | |
336 | bool session_name_contains_creation_time, | |
337 | char *output_path) | |
c5b6f4f0 DG |
338 | { |
339 | int ret; | |
ecd1a12f | 340 | struct lttcomm_relayd_create_session_reply_2_11 reply = {}; |
c5b6f4f0 | 341 | |
a0377dfe FD |
342 | LTTNG_ASSERT(rsock); |
343 | LTTNG_ASSERT(relayd_session_id); | |
c5b6f4f0 DG |
344 | |
345 | DBG("Relayd create session"); | |
346 | ||
f86f6389 JR |
347 | if (rsock->minor < 4) { |
348 | /* From 2.1 to 2.3 */ | |
ecd1a12f | 349 | ret = relayd_create_session_2_1(rsock, &reply.generic); |
f86f6389 JR |
350 | } else if (rsock->minor >= 4 && rsock->minor < 11) { |
351 | /* From 2.4 to 2.10 */ | |
28ab034a JG |
352 | ret = relayd_create_session_2_4( |
353 | rsock, session_name, hostname, session_live_timer, snapshot, &reply.generic); | |
f86f6389 JR |
354 | } else { |
355 | /* From 2.11 to ... */ | |
28ab034a JG |
356 | ret = relayd_create_session_2_11(rsock, |
357 | session_name, | |
358 | hostname, | |
359 | base_path, | |
360 | session_live_timer, | |
361 | snapshot, | |
362 | sessiond_session_id, | |
363 | sessiond_uuid, | |
364 | current_chunk_id, | |
365 | creation_time, | |
366 | session_name_contains_creation_time, | |
367 | &reply, | |
368 | output_path); | |
c5b6f4f0 DG |
369 | } |
370 | ||
c5b6f4f0 DG |
371 | if (ret < 0) { |
372 | goto error; | |
373 | } | |
374 | ||
c5b6f4f0 | 375 | /* Return session id or negative ret code. */ |
ecd1a12f | 376 | if (reply.generic.ret_code != LTTNG_OK) { |
bb63afd9 | 377 | ret = -1; |
28ab034a | 378 | ERR("Relayd create session replied error %d", reply.generic.ret_code); |
c5b6f4f0 DG |
379 | goto error; |
380 | } else { | |
381 | ret = 0; | |
ecd1a12f | 382 | *relayd_session_id = reply.generic.session_id; |
c5b6f4f0 DG |
383 | } |
384 | ||
ecd1a12f | 385 | DBG("Relayd session created with id %" PRIu64, reply.generic.session_id); |
c5b6f4f0 DG |
386 | |
387 | error: | |
388 | return ret; | |
389 | } | |
390 | ||
2f21a469 | 391 | static int relayd_add_stream_2_1(struct lttcomm_relayd_sock *rsock, |
28ab034a JG |
392 | const char *channel_name, |
393 | const char *pathname) | |
2f21a469 JR |
394 | { |
395 | int ret; | |
396 | struct lttcomm_relayd_add_stream msg; | |
397 | ||
398 | memset(&msg, 0, sizeof(msg)); | |
28ab034a | 399 | if (lttng_strncpy(msg.channel_name, channel_name, sizeof(msg.channel_name))) { |
2f21a469 JR |
400 | ret = -1; |
401 | goto error; | |
402 | } | |
403 | ||
28ab034a | 404 | if (lttng_strncpy(msg.pathname, pathname, sizeof(msg.pathname))) { |
2f21a469 JR |
405 | ret = -1; |
406 | goto error; | |
407 | } | |
408 | ||
409 | /* Send command */ | |
410 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
411 | if (ret < 0) { | |
412 | ret = -1; | |
413 | goto error; | |
414 | } | |
415 | ret = 0; | |
416 | error: | |
417 | return ret; | |
418 | } | |
419 | ||
420 | static int relayd_add_stream_2_2(struct lttcomm_relayd_sock *rsock, | |
28ab034a JG |
421 | const char *channel_name, |
422 | const char *pathname, | |
423 | uint64_t tracefile_size, | |
424 | uint64_t tracefile_count) | |
2f21a469 JR |
425 | { |
426 | int ret; | |
427 | struct lttcomm_relayd_add_stream_2_2 msg; | |
428 | ||
429 | memset(&msg, 0, sizeof(msg)); | |
430 | /* Compat with relayd 2.2 to 2.10 */ | |
28ab034a | 431 | if (lttng_strncpy(msg.channel_name, channel_name, sizeof(msg.channel_name))) { |
2f21a469 JR |
432 | ret = -1; |
433 | goto error; | |
434 | } | |
28ab034a | 435 | if (lttng_strncpy(msg.pathname, pathname, sizeof(msg.pathname))) { |
2f21a469 JR |
436 | ret = -1; |
437 | goto error; | |
438 | } | |
439 | msg.tracefile_size = htobe64(tracefile_size); | |
440 | msg.tracefile_count = htobe64(tracefile_count); | |
441 | ||
442 | /* Send command */ | |
443 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
444 | if (ret < 0) { | |
445 | goto error; | |
446 | } | |
447 | ret = 0; | |
448 | error: | |
449 | return ret; | |
450 | } | |
451 | ||
452 | static int relayd_add_stream_2_11(struct lttcomm_relayd_sock *rsock, | |
28ab034a JG |
453 | const char *channel_name, |
454 | const char *pathname, | |
455 | uint64_t tracefile_size, | |
456 | uint64_t tracefile_count, | |
457 | uint64_t trace_archive_id) | |
2f21a469 JR |
458 | { |
459 | int ret; | |
cd9adb8b | 460 | struct lttcomm_relayd_add_stream_2_11 *msg = nullptr; |
2f21a469 JR |
461 | size_t channel_name_len; |
462 | size_t pathname_len; | |
463 | size_t msg_length; | |
464 | ||
465 | /* The two names are sent with a '\0' delimiter between them. */ | |
466 | channel_name_len = strlen(channel_name) + 1; | |
467 | pathname_len = strlen(pathname) + 1; | |
468 | ||
469 | msg_length = sizeof(*msg) + channel_name_len + pathname_len; | |
64803277 | 470 | msg = zmalloc<lttcomm_relayd_add_stream_2_11>(msg_length); |
2f21a469 JR |
471 | if (!msg) { |
472 | PERROR("zmalloc add_stream_2_11 command message"); | |
473 | ret = -1; | |
474 | goto error; | |
475 | } | |
476 | ||
a0377dfe | 477 | LTTNG_ASSERT(channel_name_len <= UINT32_MAX); |
2f21a469 JR |
478 | msg->channel_name_len = htobe32(channel_name_len); |
479 | ||
a0377dfe | 480 | LTTNG_ASSERT(pathname_len <= UINT32_MAX); |
2f21a469 JR |
481 | msg->pathname_len = htobe32(pathname_len); |
482 | ||
483 | if (lttng_strncpy(msg->names, channel_name, channel_name_len)) { | |
484 | ret = -1; | |
485 | goto error; | |
486 | } | |
487 | if (lttng_strncpy(msg->names + channel_name_len, pathname, pathname_len)) { | |
488 | ret = -1; | |
489 | goto error; | |
490 | } | |
491 | ||
492 | msg->tracefile_size = htobe64(tracefile_size); | |
493 | msg->tracefile_count = htobe64(tracefile_count); | |
348a81dc | 494 | msg->trace_chunk_id = htobe64(trace_archive_id); |
2f21a469 JR |
495 | |
496 | /* Send command */ | |
497 | ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) msg, msg_length, 0); | |
498 | if (ret < 0) { | |
499 | goto error; | |
500 | } | |
501 | ret = 0; | |
502 | error: | |
503 | free(msg); | |
504 | return ret; | |
505 | } | |
506 | ||
00e2e675 DG |
507 | /* |
508 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
509 | * | |
070b6a86 MD |
510 | * Chunks are not supported by relayd prior to 2.11, but are used to |
511 | * internally between session daemon and consumer daemon to keep track | |
512 | * of the channel and stream output path. | |
513 | * | |
00e2e675 DG |
514 | * On success return 0 else return ret_code negative value. |
515 | */ | |
28ab034a JG |
516 | int relayd_add_stream(struct lttcomm_relayd_sock *rsock, |
517 | const char *channel_name, | |
518 | const char *domain_name, | |
519 | const char *_pathname, | |
520 | uint64_t *stream_id, | |
521 | uint64_t tracefile_size, | |
522 | uint64_t tracefile_count, | |
523 | struct lttng_trace_chunk *trace_chunk) | |
00e2e675 DG |
524 | { |
525 | int ret; | |
00e2e675 | 526 | struct lttcomm_relayd_status_stream reply; |
5da88b0f | 527 | char pathname[RELAYD_COMM_LTTNG_PATH_MAX]; |
00e2e675 DG |
528 | |
529 | /* Code flow error. Safety net. */ | |
a0377dfe FD |
530 | LTTNG_ASSERT(rsock); |
531 | LTTNG_ASSERT(channel_name); | |
532 | LTTNG_ASSERT(domain_name); | |
533 | LTTNG_ASSERT(_pathname); | |
534 | LTTNG_ASSERT(trace_chunk); | |
00e2e675 DG |
535 | |
536 | DBG("Relayd adding stream for channel name %s", channel_name); | |
537 | ||
0f907de1 JD |
538 | /* Compat with relayd 2.1 */ |
539 | if (rsock->minor == 1) { | |
2f21a469 | 540 | /* For 2.1 */ |
5fab2976 | 541 | ret = relayd_add_stream_2_1(rsock, channel_name, _pathname); |
55caead7 | 542 | |
2f21a469 JR |
543 | } else if (rsock->minor > 1 && rsock->minor < 11) { |
544 | /* From 2.2 to 2.10 */ | |
28ab034a JG |
545 | ret = relayd_add_stream_2_2( |
546 | rsock, channel_name, _pathname, tracefile_size, tracefile_count); | |
0f907de1 | 547 | } else { |
5fab2976 | 548 | const char *separator; |
d2956687 JG |
549 | enum lttng_trace_chunk_status chunk_status; |
550 | uint64_t chunk_id; | |
551 | ||
5fab2976 JR |
552 | if (_pathname[0] == '\0') { |
553 | separator = ""; | |
554 | } else { | |
555 | separator = "/"; | |
556 | } | |
557 | ||
28ab034a JG |
558 | ret = snprintf(pathname, |
559 | RELAYD_COMM_LTTNG_PATH_MAX, | |
560 | "%s%s%s", | |
561 | domain_name, | |
562 | separator, | |
563 | _pathname); | |
5fab2976 JR |
564 | if (ret <= 0 || ret >= RELAYD_COMM_LTTNG_PATH_MAX) { |
565 | ERR("Failed to format stream path: %s", | |
28ab034a | 566 | ret <= 0 ? "formatting error" : "path exceeds maximal allowed length"); |
5fab2976 JR |
567 | ret = -1; |
568 | goto error; | |
569 | } | |
570 | ||
28ab034a | 571 | chunk_status = lttng_trace_chunk_get_id(trace_chunk, &chunk_id); |
a0377dfe | 572 | LTTNG_ASSERT(chunk_status == LTTNG_TRACE_CHUNK_STATUS_OK); |
d2956687 | 573 | |
2f21a469 | 574 | /* From 2.11 to ...*/ |
28ab034a JG |
575 | ret = relayd_add_stream_2_11( |
576 | rsock, channel_name, pathname, tracefile_size, tracefile_count, chunk_id); | |
2f21a469 | 577 | } |
0f907de1 | 578 | |
2f21a469 JR |
579 | if (ret) { |
580 | ret = -1; | |
581 | goto error; | |
00e2e675 DG |
582 | } |
583 | ||
633d0084 | 584 | /* Waiting for reply */ |
6151a90f | 585 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
00e2e675 DG |
586 | if (ret < 0) { |
587 | goto error; | |
588 | } | |
589 | ||
590 | /* Back to host bytes order. */ | |
591 | reply.handle = be64toh(reply.handle); | |
592 | reply.ret_code = be32toh(reply.ret_code); | |
593 | ||
594 | /* Return session id or negative ret code. */ | |
f73fabfd | 595 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
596 | ret = -1; |
597 | ERR("Relayd add stream replied error %d", reply.ret_code); | |
00e2e675 DG |
598 | } else { |
599 | /* Success */ | |
600 | ret = 0; | |
601 | *stream_id = reply.handle; | |
602 | } | |
603 | ||
28ab034a | 604 | DBG("Relayd stream added successfully with handle %" PRIu64, reply.handle); |
00e2e675 DG |
605 | |
606 | error: | |
607 | return ret; | |
608 | } | |
609 | ||
a4baae1b JD |
610 | /* |
611 | * Inform the relay that all the streams for the current channel has been sent. | |
612 | * | |
613 | * On success return 0 else return ret_code negative value. | |
614 | */ | |
615 | int relayd_streams_sent(struct lttcomm_relayd_sock *rsock) | |
616 | { | |
617 | int ret; | |
618 | struct lttcomm_relayd_generic_reply reply; | |
619 | ||
620 | /* Code flow error. Safety net. */ | |
a0377dfe | 621 | LTTNG_ASSERT(rsock); |
a4baae1b JD |
622 | |
623 | DBG("Relayd sending streams sent."); | |
624 | ||
625 | /* This feature was introduced in 2.4, ignore it for earlier versions. */ | |
626 | if (rsock->minor < 4) { | |
627 | ret = 0; | |
628 | goto end; | |
629 | } | |
630 | ||
631 | /* Send command */ | |
cd9adb8b | 632 | ret = send_command(rsock, RELAYD_STREAMS_SENT, nullptr, 0, 0); |
a4baae1b JD |
633 | if (ret < 0) { |
634 | goto error; | |
635 | } | |
636 | ||
637 | /* Waiting for reply */ | |
638 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
639 | if (ret < 0) { | |
640 | goto error; | |
641 | } | |
642 | ||
643 | /* Back to host bytes order. */ | |
644 | reply.ret_code = be32toh(reply.ret_code); | |
645 | ||
646 | /* Return session id or negative ret code. */ | |
647 | if (reply.ret_code != LTTNG_OK) { | |
648 | ret = -1; | |
649 | ERR("Relayd streams sent replied error %d", reply.ret_code); | |
650 | goto error; | |
651 | } else { | |
652 | /* Success */ | |
653 | ret = 0; | |
654 | } | |
655 | ||
656 | DBG("Relayd streams sent success"); | |
657 | ||
658 | error: | |
659 | end: | |
660 | return ret; | |
661 | } | |
662 | ||
00e2e675 DG |
663 | /* |
664 | * Check version numbers on the relayd. | |
d4519fa3 JD |
665 | * If major versions are compatible, we assign minor_to_use to the |
666 | * minor version of the procotol we are going to use for this session. | |
00e2e675 | 667 | * |
67d5aa28 JD |
668 | * Return 0 if the two daemons are compatible, LTTNG_ERR_RELAYD_VERSION_FAIL |
669 | * otherwise, or a negative value on network errors. | |
00e2e675 | 670 | */ |
6151a90f | 671 | int relayd_version_check(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
672 | { |
673 | int ret; | |
092b6259 | 674 | struct lttcomm_relayd_version msg; |
00e2e675 DG |
675 | |
676 | /* Code flow error. Safety net. */ | |
a0377dfe | 677 | LTTNG_ASSERT(rsock); |
00e2e675 | 678 | |
28ab034a | 679 | DBG("Relayd version check for major.minor %u.%u", rsock->major, rsock->minor); |
00e2e675 | 680 | |
53efb85a | 681 | memset(&msg, 0, sizeof(msg)); |
092b6259 | 682 | /* Prepare network byte order before transmission. */ |
6151a90f JD |
683 | msg.major = htobe32(rsock->major); |
684 | msg.minor = htobe32(rsock->minor); | |
092b6259 | 685 | |
00e2e675 | 686 | /* Send command */ |
6151a90f | 687 | ret = send_command(rsock, RELAYD_VERSION, (void *) &msg, sizeof(msg), 0); |
00e2e675 DG |
688 | if (ret < 0) { |
689 | goto error; | |
690 | } | |
691 | ||
20275fe8 | 692 | /* Receive response */ |
6151a90f | 693 | ret = recv_reply(rsock, (void *) &msg, sizeof(msg)); |
00e2e675 DG |
694 | if (ret < 0) { |
695 | goto error; | |
696 | } | |
697 | ||
698 | /* Set back to host bytes order */ | |
092b6259 DG |
699 | msg.major = be32toh(msg.major); |
700 | msg.minor = be32toh(msg.minor); | |
701 | ||
702 | /* | |
703 | * Only validate the major version. If the other side is higher, | |
704 | * communication is not possible. Only major version equal can talk to each | |
705 | * other. If the minor version differs, the lowest version is used by both | |
706 | * sides. | |
092b6259 | 707 | */ |
6151a90f | 708 | if (msg.major != rsock->major) { |
d4519fa3 | 709 | /* Not compatible */ |
67d5aa28 | 710 | ret = LTTNG_ERR_RELAYD_VERSION_FAIL; |
d4519fa3 | 711 | DBG2("Relayd version is NOT compatible. Relayd version %u != %u (us)", |
28ab034a JG |
712 | msg.major, |
713 | rsock->major); | |
092b6259 | 714 | goto error; |
00e2e675 DG |
715 | } |
716 | ||
092b6259 | 717 | /* |
6151a90f JD |
718 | * If the relayd's minor version is higher, it will adapt to our version so |
719 | * we can continue to use the latest relayd communication data structure. | |
720 | * If the received minor version is higher, the relayd should adapt to us. | |
092b6259 | 721 | */ |
6151a90f JD |
722 | if (rsock->minor > msg.minor) { |
723 | rsock->minor = msg.minor; | |
d4519fa3 | 724 | } |
092b6259 | 725 | |
d4519fa3 JD |
726 | /* Version number compatible */ |
727 | DBG2("Relayd version is compatible, using protocol version %u.%u", | |
28ab034a JG |
728 | rsock->major, |
729 | rsock->minor); | |
d4519fa3 | 730 | ret = 0; |
00e2e675 DG |
731 | |
732 | error: | |
733 | return ret; | |
734 | } | |
735 | ||
00e2e675 DG |
736 | /* |
737 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
738 | * | |
739 | * On success return 0 else return ret_code negative value. | |
740 | */ | |
6151a90f | 741 | int relayd_send_metadata(struct lttcomm_relayd_sock *rsock, size_t len) |
00e2e675 DG |
742 | { |
743 | int ret; | |
744 | ||
745 | /* Code flow error. Safety net. */ | |
a0377dfe | 746 | LTTNG_ASSERT(rsock); |
00e2e675 | 747 | |
77c7c900 | 748 | DBG("Relayd sending metadata of size %zu", len); |
00e2e675 DG |
749 | |
750 | /* Send command */ | |
cd9adb8b | 751 | ret = send_command(rsock, RELAYD_SEND_METADATA, nullptr, len, 0); |
00e2e675 DG |
752 | if (ret < 0) { |
753 | goto error; | |
754 | } | |
755 | ||
756 | DBG2("Relayd metadata added successfully"); | |
757 | ||
758 | /* | |
759 | * After that call, the metadata data MUST be sent to the relayd so the | |
760 | * receive size on the other end matches the len of the metadata packet | |
633d0084 | 761 | * header. This is why we don't wait for a reply here. |
00e2e675 DG |
762 | */ |
763 | ||
764 | error: | |
765 | return ret; | |
766 | } | |
767 | ||
768 | /* | |
6151a90f | 769 | * Connect to relay daemon with an allocated lttcomm_relayd_sock. |
00e2e675 | 770 | */ |
6151a90f | 771 | int relayd_connect(struct lttcomm_relayd_sock *rsock) |
00e2e675 DG |
772 | { |
773 | /* Code flow error. Safety net. */ | |
a0377dfe | 774 | LTTNG_ASSERT(rsock); |
00e2e675 | 775 | |
f96e4545 MD |
776 | if (!rsock->sock.ops) { |
777 | /* | |
778 | * Attempting a connect on a non-initialized socket. | |
779 | */ | |
780 | return -ECONNRESET; | |
781 | } | |
782 | ||
00e2e675 DG |
783 | DBG3("Relayd connect ..."); |
784 | ||
6151a90f | 785 | return rsock->sock.ops->connect(&rsock->sock); |
00e2e675 DG |
786 | } |
787 | ||
788 | /* | |
6151a90f | 789 | * Close relayd socket with an allocated lttcomm_relayd_sock. |
ffe60014 DG |
790 | * |
791 | * If no socket operations are found, simply return 0 meaning that everything | |
792 | * is fine. Without operations, the socket can not possibly be opened or used. | |
793 | * This is possible if the socket was allocated but not created. However, the | |
794 | * caller could simply use it to store a valid file descriptor for instance | |
795 | * passed over a Unix socket and call this to cleanup but still without a valid | |
796 | * ops pointer. | |
797 | * | |
798 | * Return the close returned value. On error, a negative value is usually | |
799 | * returned back from close(2). | |
00e2e675 | 800 | */ |
6151a90f | 801 | int relayd_close(struct lttcomm_relayd_sock *rsock) |
00e2e675 | 802 | { |
ffe60014 DG |
803 | int ret; |
804 | ||
00e2e675 | 805 | /* Code flow error. Safety net. */ |
a0377dfe | 806 | LTTNG_ASSERT(rsock); |
00e2e675 | 807 | |
ffe60014 | 808 | /* An invalid fd is fine, return success. */ |
6151a90f | 809 | if (rsock->sock.fd < 0) { |
ffe60014 DG |
810 | ret = 0; |
811 | goto end; | |
812 | } | |
813 | ||
6151a90f | 814 | DBG3("Relayd closing socket %d", rsock->sock.fd); |
00e2e675 | 815 | |
6151a90f JD |
816 | if (rsock->sock.ops) { |
817 | ret = rsock->sock.ops->close(&rsock->sock); | |
ffe60014 DG |
818 | } else { |
819 | /* Default call if no specific ops found. */ | |
6151a90f | 820 | ret = close(rsock->sock.fd); |
ffe60014 DG |
821 | if (ret < 0) { |
822 | PERROR("relayd_close default close"); | |
823 | } | |
824 | } | |
f96e4545 | 825 | rsock->sock.fd = -1; |
ffe60014 DG |
826 | |
827 | end: | |
828 | return ret; | |
00e2e675 DG |
829 | } |
830 | ||
831 | /* | |
832 | * Send data header structure to the relayd. | |
833 | */ | |
6151a90f | 834 | int relayd_send_data_hdr(struct lttcomm_relayd_sock *rsock, |
28ab034a JG |
835 | struct lttcomm_relayd_data_hdr *hdr, |
836 | size_t size) | |
00e2e675 DG |
837 | { |
838 | int ret; | |
839 | ||
840 | /* Code flow error. Safety net. */ | |
a0377dfe FD |
841 | LTTNG_ASSERT(rsock); |
842 | LTTNG_ASSERT(hdr); | |
00e2e675 | 843 | |
f96e4545 MD |
844 | if (rsock->sock.fd < 0) { |
845 | return -ECONNRESET; | |
846 | } | |
847 | ||
8fd623e0 | 848 | DBG3("Relayd sending data header of size %zu", size); |
00e2e675 DG |
849 | |
850 | /* Again, safety net */ | |
851 | if (size == 0) { | |
852 | size = sizeof(struct lttcomm_relayd_data_hdr); | |
853 | } | |
854 | ||
855 | /* Only send data header. */ | |
6151a90f | 856 | ret = rsock->sock.ops->sendmsg(&rsock->sock, hdr, size, 0); |
00e2e675 | 857 | if (ret < 0) { |
8994307f | 858 | ret = -errno; |
00e2e675 DG |
859 | goto error; |
860 | } | |
861 | ||
862 | /* | |
863 | * The data MUST be sent right after that command for the receive on the | |
864 | * other end to match the size in the header. | |
865 | */ | |
866 | ||
867 | error: | |
868 | return ret; | |
869 | } | |
173af62f DG |
870 | |
871 | /* | |
872 | * Send close stream command to the relayd. | |
873 | */ | |
28ab034a JG |
874 | int relayd_send_close_stream(struct lttcomm_relayd_sock *rsock, |
875 | uint64_t stream_id, | |
876 | uint64_t last_net_seq_num) | |
173af62f DG |
877 | { |
878 | int ret; | |
879 | struct lttcomm_relayd_close_stream msg; | |
880 | struct lttcomm_relayd_generic_reply reply; | |
881 | ||
882 | /* Code flow error. Safety net. */ | |
a0377dfe | 883 | LTTNG_ASSERT(rsock); |
173af62f | 884 | |
77c7c900 | 885 | DBG("Relayd closing stream id %" PRIu64, stream_id); |
173af62f | 886 | |
53efb85a | 887 | memset(&msg, 0, sizeof(msg)); |
173af62f DG |
888 | msg.stream_id = htobe64(stream_id); |
889 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
890 | ||
891 | /* Send command */ | |
6151a90f | 892 | ret = send_command(rsock, RELAYD_CLOSE_STREAM, (void *) &msg, sizeof(msg), 0); |
173af62f DG |
893 | if (ret < 0) { |
894 | goto error; | |
895 | } | |
896 | ||
20275fe8 | 897 | /* Receive response */ |
6151a90f | 898 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
173af62f DG |
899 | if (ret < 0) { |
900 | goto error; | |
901 | } | |
902 | ||
903 | reply.ret_code = be32toh(reply.ret_code); | |
904 | ||
905 | /* Return session id or negative ret code. */ | |
f73fabfd | 906 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
907 | ret = -1; |
908 | ERR("Relayd close stream replied error %d", reply.ret_code); | |
173af62f DG |
909 | } else { |
910 | /* Success */ | |
911 | ret = 0; | |
912 | } | |
913 | ||
77c7c900 | 914 | DBG("Relayd close stream id %" PRIu64 " successfully", stream_id); |
173af62f DG |
915 | |
916 | error: | |
917 | return ret; | |
918 | } | |
c8f59ee5 DG |
919 | |
920 | /* | |
921 | * Check for data availability for a given stream id. | |
922 | * | |
6d805429 | 923 | * Return 0 if NOT pending, 1 if so and a negative value on error. |
c8f59ee5 | 924 | */ |
28ab034a JG |
925 | int relayd_data_pending(struct lttcomm_relayd_sock *rsock, |
926 | uint64_t stream_id, | |
927 | uint64_t last_net_seq_num) | |
c8f59ee5 DG |
928 | { |
929 | int ret; | |
6d805429 | 930 | struct lttcomm_relayd_data_pending msg; |
c8f59ee5 DG |
931 | struct lttcomm_relayd_generic_reply reply; |
932 | ||
933 | /* Code flow error. Safety net. */ | |
a0377dfe | 934 | LTTNG_ASSERT(rsock); |
c8f59ee5 | 935 | |
6d805429 | 936 | DBG("Relayd data pending for stream id %" PRIu64, stream_id); |
c8f59ee5 | 937 | |
53efb85a | 938 | memset(&msg, 0, sizeof(msg)); |
c8f59ee5 DG |
939 | msg.stream_id = htobe64(stream_id); |
940 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
941 | ||
942 | /* Send command */ | |
28ab034a | 943 | ret = send_command(rsock, RELAYD_DATA_PENDING, (void *) &msg, sizeof(msg), 0); |
c8f59ee5 DG |
944 | if (ret < 0) { |
945 | goto error; | |
946 | } | |
947 | ||
20275fe8 | 948 | /* Receive response */ |
6151a90f | 949 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
950 | if (ret < 0) { |
951 | goto error; | |
952 | } | |
953 | ||
954 | reply.ret_code = be32toh(reply.ret_code); | |
955 | ||
956 | /* Return session id or negative ret code. */ | |
957 | if (reply.ret_code >= LTTNG_OK) { | |
bb63afd9 | 958 | ERR("Relayd data pending replied error %d", reply.ret_code); |
c8f59ee5 DG |
959 | } |
960 | ||
961 | /* At this point, the ret code is either 1 or 0 */ | |
962 | ret = reply.ret_code; | |
963 | ||
28ab034a | 964 | DBG("Relayd data is %s pending for stream id %" PRIu64, ret == 1 ? "" : "NOT", stream_id); |
c8f59ee5 DG |
965 | |
966 | error: | |
967 | return ret; | |
968 | } | |
969 | ||
970 | /* | |
971 | * Check on the relayd side for a quiescent state on the control socket. | |
972 | */ | |
28ab034a | 973 | int relayd_quiescent_control(struct lttcomm_relayd_sock *rsock, uint64_t metadata_stream_id) |
c8f59ee5 DG |
974 | { |
975 | int ret; | |
ad7051c0 | 976 | struct lttcomm_relayd_quiescent_control msg; |
c8f59ee5 DG |
977 | struct lttcomm_relayd_generic_reply reply; |
978 | ||
979 | /* Code flow error. Safety net. */ | |
a0377dfe | 980 | LTTNG_ASSERT(rsock); |
c8f59ee5 DG |
981 | |
982 | DBG("Relayd checking quiescent control state"); | |
983 | ||
53efb85a | 984 | memset(&msg, 0, sizeof(msg)); |
ad7051c0 DG |
985 | msg.stream_id = htobe64(metadata_stream_id); |
986 | ||
c8f59ee5 | 987 | /* Send command */ |
6151a90f | 988 | ret = send_command(rsock, RELAYD_QUIESCENT_CONTROL, &msg, sizeof(msg), 0); |
c8f59ee5 DG |
989 | if (ret < 0) { |
990 | goto error; | |
991 | } | |
992 | ||
20275fe8 | 993 | /* Receive response */ |
6151a90f | 994 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
c8f59ee5 DG |
995 | if (ret < 0) { |
996 | goto error; | |
997 | } | |
998 | ||
999 | reply.ret_code = be32toh(reply.ret_code); | |
1000 | ||
1001 | /* Return session id or negative ret code. */ | |
1002 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
1003 | ret = -1; |
1004 | ERR("Relayd quiescent control replied error %d", reply.ret_code); | |
c8f59ee5 DG |
1005 | goto error; |
1006 | } | |
1007 | ||
1008 | /* Control socket is quiescent */ | |
6d805429 | 1009 | return 0; |
c8f59ee5 DG |
1010 | |
1011 | error: | |
1012 | return ret; | |
1013 | } | |
f7079f67 DG |
1014 | |
1015 | /* | |
1016 | * Begin a data pending command for a specific session id. | |
1017 | */ | |
6151a90f | 1018 | int relayd_begin_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id) |
f7079f67 DG |
1019 | { |
1020 | int ret; | |
1021 | struct lttcomm_relayd_begin_data_pending msg; | |
1022 | struct lttcomm_relayd_generic_reply reply; | |
1023 | ||
1024 | /* Code flow error. Safety net. */ | |
a0377dfe | 1025 | LTTNG_ASSERT(rsock); |
f7079f67 DG |
1026 | |
1027 | DBG("Relayd begin data pending"); | |
1028 | ||
53efb85a | 1029 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
1030 | msg.session_id = htobe64(id); |
1031 | ||
1032 | /* Send command */ | |
6151a90f | 1033 | ret = send_command(rsock, RELAYD_BEGIN_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
1034 | if (ret < 0) { |
1035 | goto error; | |
1036 | } | |
1037 | ||
20275fe8 | 1038 | /* Receive response */ |
6151a90f | 1039 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
1040 | if (ret < 0) { |
1041 | goto error; | |
1042 | } | |
1043 | ||
1044 | reply.ret_code = be32toh(reply.ret_code); | |
1045 | ||
1046 | /* Return session id or negative ret code. */ | |
1047 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
1048 | ret = -1; |
1049 | ERR("Relayd begin data pending replied error %d", reply.ret_code); | |
f7079f67 DG |
1050 | goto error; |
1051 | } | |
1052 | ||
1053 | return 0; | |
1054 | ||
1055 | error: | |
1056 | return ret; | |
1057 | } | |
1058 | ||
1059 | /* | |
1060 | * End a data pending command for a specific session id. | |
1061 | * | |
1062 | * Return 0 on success and set is_data_inflight to 0 if no data is being | |
1063 | * streamed or 1 if it is the case. | |
1064 | */ | |
28ab034a JG |
1065 | int relayd_end_data_pending(struct lttcomm_relayd_sock *rsock, |
1066 | uint64_t id, | |
1067 | unsigned int *is_data_inflight) | |
f7079f67 | 1068 | { |
af6c30b5 | 1069 | int ret, recv_ret; |
f7079f67 DG |
1070 | struct lttcomm_relayd_end_data_pending msg; |
1071 | struct lttcomm_relayd_generic_reply reply; | |
1072 | ||
1073 | /* Code flow error. Safety net. */ | |
a0377dfe | 1074 | LTTNG_ASSERT(rsock); |
f7079f67 DG |
1075 | |
1076 | DBG("Relayd end data pending"); | |
1077 | ||
53efb85a | 1078 | memset(&msg, 0, sizeof(msg)); |
f7079f67 DG |
1079 | msg.session_id = htobe64(id); |
1080 | ||
1081 | /* Send command */ | |
6151a90f | 1082 | ret = send_command(rsock, RELAYD_END_DATA_PENDING, &msg, sizeof(msg), 0); |
f7079f67 DG |
1083 | if (ret < 0) { |
1084 | goto error; | |
1085 | } | |
1086 | ||
20275fe8 | 1087 | /* Receive response */ |
6151a90f | 1088 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); |
f7079f67 DG |
1089 | if (ret < 0) { |
1090 | goto error; | |
1091 | } | |
1092 | ||
af6c30b5 DG |
1093 | recv_ret = be32toh(reply.ret_code); |
1094 | if (recv_ret < 0) { | |
1095 | ret = recv_ret; | |
f7079f67 DG |
1096 | goto error; |
1097 | } | |
1098 | ||
af6c30b5 | 1099 | *is_data_inflight = recv_ret; |
f7079f67 | 1100 | |
af6c30b5 | 1101 | DBG("Relayd end data pending is data inflight: %d", recv_ret); |
f7079f67 DG |
1102 | |
1103 | return 0; | |
1104 | ||
1105 | error: | |
1106 | return ret; | |
1107 | } | |
1c20f0e2 JD |
1108 | |
1109 | /* | |
1110 | * Send index to the relayd. | |
1111 | */ | |
1112 | int relayd_send_index(struct lttcomm_relayd_sock *rsock, | |
28ab034a JG |
1113 | struct ctf_packet_index *index, |
1114 | uint64_t relay_stream_id, | |
1115 | uint64_t net_seq_num) | |
1c20f0e2 JD |
1116 | { |
1117 | int ret; | |
1118 | struct lttcomm_relayd_index msg; | |
1119 | struct lttcomm_relayd_generic_reply reply; | |
1120 | ||
1121 | /* Code flow error. Safety net. */ | |
a0377dfe | 1122 | LTTNG_ASSERT(rsock); |
1c20f0e2 JD |
1123 | |
1124 | if (rsock->minor < 4) { | |
1125 | DBG("Not sending indexes before protocol 2.4"); | |
1126 | ret = 0; | |
1127 | goto error; | |
1128 | } | |
1129 | ||
1130 | DBG("Relayd sending index for stream ID %" PRIu64, relay_stream_id); | |
1131 | ||
53efb85a | 1132 | memset(&msg, 0, sizeof(msg)); |
1c20f0e2 JD |
1133 | msg.relay_stream_id = htobe64(relay_stream_id); |
1134 | msg.net_seq_num = htobe64(net_seq_num); | |
1135 | ||
1136 | /* The index is already in big endian. */ | |
1137 | msg.packet_size = index->packet_size; | |
1138 | msg.content_size = index->content_size; | |
1139 | msg.timestamp_begin = index->timestamp_begin; | |
1140 | msg.timestamp_end = index->timestamp_end; | |
1141 | msg.events_discarded = index->events_discarded; | |
1142 | msg.stream_id = index->stream_id; | |
1143 | ||
234cd636 JD |
1144 | if (rsock->minor >= 8) { |
1145 | msg.stream_instance_id = index->stream_instance_id; | |
1146 | msg.packet_seq_num = index->packet_seq_num; | |
1147 | } | |
1148 | ||
1c20f0e2 | 1149 | /* Send command */ |
28ab034a JG |
1150 | ret = send_command( |
1151 | rsock, | |
1152 | RELAYD_SEND_INDEX, | |
1153 | &msg, | |
1154 | lttcomm_relayd_index_len(lttng_to_index_major(rsock->major, rsock->minor), | |
1155 | lttng_to_index_minor(rsock->major, rsock->minor)), | |
1156 | 0); | |
1c20f0e2 JD |
1157 | if (ret < 0) { |
1158 | goto error; | |
1159 | } | |
1160 | ||
1161 | /* Receive response */ | |
1162 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1163 | if (ret < 0) { | |
1164 | goto error; | |
1165 | } | |
1166 | ||
1167 | reply.ret_code = be32toh(reply.ret_code); | |
1168 | ||
1169 | /* Return session id or negative ret code. */ | |
1170 | if (reply.ret_code != LTTNG_OK) { | |
1171 | ret = -1; | |
1172 | ERR("Relayd send index replied error %d", reply.ret_code); | |
1173 | } else { | |
1174 | /* Success */ | |
1175 | ret = 0; | |
1176 | } | |
1177 | ||
1178 | error: | |
1179 | return ret; | |
1180 | } | |
93ec662e JD |
1181 | |
1182 | /* | |
1183 | * Ask the relay to reset the metadata trace file (regeneration). | |
1184 | */ | |
28ab034a | 1185 | int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, uint64_t version) |
93ec662e JD |
1186 | { |
1187 | int ret; | |
1188 | struct lttcomm_relayd_reset_metadata msg; | |
1189 | struct lttcomm_relayd_generic_reply reply; | |
1190 | ||
1191 | /* Code flow error. Safety net. */ | |
a0377dfe | 1192 | LTTNG_ASSERT(rsock); |
93ec662e JD |
1193 | |
1194 | /* Should have been prevented by the sessiond. */ | |
1195 | if (rsock->minor < 8) { | |
1196 | ERR("Metadata regeneration unsupported before 2.8"); | |
1197 | ret = -1; | |
1198 | goto error; | |
1199 | } | |
1200 | ||
1201 | DBG("Relayd reset metadata stream id %" PRIu64, stream_id); | |
1202 | ||
1203 | memset(&msg, 0, sizeof(msg)); | |
1204 | msg.stream_id = htobe64(stream_id); | |
1205 | msg.version = htobe64(version); | |
1206 | ||
1207 | /* Send command */ | |
1208 | ret = send_command(rsock, RELAYD_RESET_METADATA, (void *) &msg, sizeof(msg), 0); | |
1209 | if (ret < 0) { | |
1210 | goto error; | |
1211 | } | |
1212 | ||
1213 | /* Receive response */ | |
1214 | ret = recv_reply(rsock, (void *) &reply, sizeof(reply)); | |
1215 | if (ret < 0) { | |
1216 | goto error; | |
1217 | } | |
1218 | ||
1219 | reply.ret_code = be32toh(reply.ret_code); | |
1220 | ||
1221 | /* Return session id or negative ret code. */ | |
1222 | if (reply.ret_code != LTTNG_OK) { | |
1223 | ret = -1; | |
1224 | ERR("Relayd reset metadata replied error %d", reply.ret_code); | |
1225 | } else { | |
1226 | /* Success */ | |
1227 | ret = 0; | |
1228 | } | |
1229 | ||
1230 | DBG("Relayd reset metadata stream id %" PRIu64 " successfully", stream_id); | |
1231 | ||
1232 | error: | |
1233 | return ret; | |
1234 | } | |
a1ae2ea5 | 1235 | |
c35f9726 | 1236 | int relayd_rotate_streams(struct lttcomm_relayd_sock *sock, |
28ab034a JG |
1237 | unsigned int stream_count, |
1238 | const uint64_t *new_chunk_id, | |
1239 | const struct relayd_stream_rotation_position *positions) | |
d73bf3d7 JD |
1240 | { |
1241 | int ret; | |
c35f9726 JG |
1242 | unsigned int i; |
1243 | struct lttng_dynamic_buffer payload; | |
1244 | struct lttcomm_relayd_generic_reply reply = {}; | |
6d15ee45 | 1245 | struct lttcomm_relayd_rotate_streams msg; |
c35f9726 JG |
1246 | char new_chunk_id_buf[MAX_INT_DEC_LEN(*new_chunk_id)] = {}; |
1247 | const char *new_chunk_id_str; | |
d73bf3d7 | 1248 | |
6d15ee45 JG |
1249 | msg.stream_count = htobe32((uint32_t) stream_count); |
1250 | msg.new_chunk_id = (typeof(msg.new_chunk_id)){ | |
1251 | .is_set = !!new_chunk_id, | |
1252 | .value = htobe64(new_chunk_id ? *new_chunk_id : 0), | |
1253 | }; | |
1254 | ||
070b6a86 MD |
1255 | if (!relayd_supports_chunks(sock)) { |
1256 | DBG("Refusing to rotate remote streams: relayd does not support chunks"); | |
1257 | return 0; | |
1258 | } | |
1259 | ||
c35f9726 | 1260 | lttng_dynamic_buffer_init(&payload); |
d73bf3d7 | 1261 | |
c35f9726 | 1262 | /* Code flow error. Safety net. */ |
a0377dfe | 1263 | LTTNG_ASSERT(sock); |
d73bf3d7 | 1264 | |
c35f9726 | 1265 | if (new_chunk_id) { |
28ab034a JG |
1266 | ret = snprintf( |
1267 | new_chunk_id_buf, sizeof(new_chunk_id_buf), "%" PRIu64, *new_chunk_id); | |
c35f9726 JG |
1268 | if (ret == -1 || ret >= sizeof(new_chunk_id_buf)) { |
1269 | new_chunk_id_str = "formatting error"; | |
1270 | } else { | |
1271 | new_chunk_id_str = new_chunk_id_buf; | |
1272 | } | |
1273 | } else { | |
1274 | new_chunk_id_str = "none"; | |
d73bf3d7 JD |
1275 | } |
1276 | ||
c35f9726 | 1277 | DBG("Preparing \"rotate streams\" command payload: new_chunk_id = %s, stream_count = %u", |
28ab034a JG |
1278 | new_chunk_id_str, |
1279 | stream_count); | |
d73bf3d7 | 1280 | |
c35f9726 JG |
1281 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); |
1282 | if (ret) { | |
1283 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
d73bf3d7 JD |
1284 | goto error; |
1285 | } | |
1286 | ||
c35f9726 | 1287 | for (i = 0; i < stream_count; i++) { |
28ab034a | 1288 | const struct relayd_stream_rotation_position *position = &positions[i]; |
c35f9726 JG |
1289 | const struct lttcomm_relayd_stream_rotation_position comm_position = { |
1290 | .stream_id = htobe64(position->stream_id), | |
28ab034a | 1291 | .rotate_at_seq_num = htobe64(position->rotate_at_seq_num), |
c35f9726 JG |
1292 | }; |
1293 | ||
a269202e | 1294 | DBG("Rotate stream %" PRIu64 " at sequence number %" PRIu64, |
28ab034a JG |
1295 | position->stream_id, |
1296 | position->rotate_at_seq_num); | |
1297 | ret = lttng_dynamic_buffer_append(&payload, &comm_position, sizeof(comm_position)); | |
c35f9726 JG |
1298 | if (ret) { |
1299 | ERR("Failed to allocate \"rotate streams\" command payload"); | |
1300 | goto error; | |
1301 | } | |
1302 | } | |
d73bf3d7 JD |
1303 | |
1304 | /* Send command. */ | |
28ab034a | 1305 | ret = send_command(sock, RELAYD_ROTATE_STREAMS, payload.data, payload.size, 0); |
d73bf3d7 | 1306 | if (ret < 0) { |
c35f9726 | 1307 | ERR("Failed to send \"rotate stream\" command"); |
d73bf3d7 JD |
1308 | goto error; |
1309 | } | |
1310 | ||
1311 | /* Receive response. */ | |
c35f9726 | 1312 | ret = recv_reply(sock, &reply, sizeof(reply)); |
d73bf3d7 | 1313 | if (ret < 0) { |
c35f9726 | 1314 | ERR("Failed to receive \"rotate streams\" command reply"); |
d73bf3d7 JD |
1315 | goto error; |
1316 | } | |
1317 | ||
1318 | reply.ret_code = be32toh(reply.ret_code); | |
d73bf3d7 JD |
1319 | if (reply.ret_code != LTTNG_OK) { |
1320 | ret = -1; | |
c35f9726 | 1321 | ERR("Relayd rotate streams replied error %d", reply.ret_code); |
d73bf3d7 JD |
1322 | } else { |
1323 | /* Success. */ | |
1324 | ret = 0; | |
c35f9726 | 1325 | DBG("Relayd rotated streams successfully"); |
d73bf3d7 JD |
1326 | } |
1327 | ||
1328 | error: | |
c35f9726 | 1329 | lttng_dynamic_buffer_reset(&payload); |
d73bf3d7 JD |
1330 | return ret; |
1331 | } | |
e5add6d0 | 1332 | |
28ab034a | 1333 | int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock, struct lttng_trace_chunk *chunk) |
e5add6d0 JG |
1334 | { |
1335 | int ret = 0; | |
1336 | enum lttng_trace_chunk_status status; | |
1337 | struct lttcomm_relayd_create_trace_chunk msg = {}; | |
1338 | struct lttcomm_relayd_generic_reply reply = {}; | |
1339 | struct lttng_dynamic_buffer payload; | |
1340 | uint64_t chunk_id; | |
1341 | time_t creation_timestamp; | |
1342 | const char *chunk_name; | |
1343 | size_t chunk_name_length; | |
913a542b | 1344 | bool overridden_name; |
e5add6d0 JG |
1345 | |
1346 | lttng_dynamic_buffer_init(&payload); | |
1347 | ||
070b6a86 MD |
1348 | if (!relayd_supports_chunks(sock)) { |
1349 | DBG("Refusing to create remote trace chunk: relayd does not support chunks"); | |
1350 | goto end; | |
1351 | } | |
1352 | ||
e5add6d0 JG |
1353 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1354 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1355 | ret = -1; | |
1356 | goto end; | |
1357 | } | |
1358 | ||
28ab034a | 1359 | status = lttng_trace_chunk_get_creation_timestamp(chunk, &creation_timestamp); |
e5add6d0 JG |
1360 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { |
1361 | ret = -1; | |
1362 | goto end; | |
1363 | } | |
1364 | ||
28ab034a JG |
1365 | status = lttng_trace_chunk_get_name(chunk, &chunk_name, &overridden_name); |
1366 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK && status != LTTNG_TRACE_CHUNK_STATUS_NONE) { | |
e5add6d0 JG |
1367 | ret = -1; |
1368 | goto end; | |
1369 | } | |
1370 | ||
913a542b | 1371 | chunk_name_length = overridden_name ? (strlen(chunk_name) + 1) : 0; |
c15e2d3d JG |
1372 | msg.chunk_id = htobe64(chunk_id); |
1373 | msg.creation_timestamp = htobe64((uint64_t) creation_timestamp); | |
1374 | msg.override_name_length = htobe32((uint32_t) chunk_name_length); | |
e5add6d0 JG |
1375 | |
1376 | ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg)); | |
1377 | if (ret) { | |
1378 | goto end; | |
1379 | } | |
1380 | if (chunk_name_length) { | |
28ab034a | 1381 | ret = lttng_dynamic_buffer_append(&payload, chunk_name, chunk_name_length); |
e5add6d0 JG |
1382 | if (ret) { |
1383 | goto end; | |
1384 | } | |
1385 | } | |
1386 | ||
28ab034a | 1387 | ret = send_command(sock, RELAYD_CREATE_TRACE_CHUNK, payload.data, payload.size, 0); |
e5add6d0 JG |
1388 | if (ret < 0) { |
1389 | ERR("Failed to send trace chunk creation command to relay daemon"); | |
1390 | goto end; | |
1391 | } | |
1392 | ||
1393 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1394 | if (ret < 0) { | |
1395 | ERR("Failed to receive relay daemon trace chunk creation command reply"); | |
1396 | goto end; | |
1397 | } | |
1398 | ||
1399 | reply.ret_code = be32toh(reply.ret_code); | |
1400 | if (reply.ret_code != LTTNG_OK) { | |
1401 | ret = -1; | |
28ab034a | 1402 | ERR("Relayd trace chunk create replied error %d", reply.ret_code); |
e5add6d0 JG |
1403 | } else { |
1404 | ret = 0; | |
28ab034a | 1405 | DBG("Relayd successfully created trace chunk: chunk_id = %" PRIu64, chunk_id); |
e5add6d0 JG |
1406 | } |
1407 | ||
1408 | end: | |
1409 | lttng_dynamic_buffer_reset(&payload); | |
1410 | return ret; | |
1411 | } | |
bbc4768c JG |
1412 | |
1413 | int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock, | |
28ab034a JG |
1414 | struct lttng_trace_chunk *chunk, |
1415 | char *path) | |
bbc4768c JG |
1416 | { |
1417 | int ret = 0; | |
1418 | enum lttng_trace_chunk_status status; | |
1419 | struct lttcomm_relayd_close_trace_chunk msg = {}; | |
ecd1a12f | 1420 | struct lttcomm_relayd_close_trace_chunk_reply reply = {}; |
bbc4768c JG |
1421 | uint64_t chunk_id; |
1422 | time_t close_timestamp; | |
1423 | LTTNG_OPTIONAL(enum lttng_trace_chunk_command_type) close_command = {}; | |
1424 | ||
070b6a86 MD |
1425 | if (!relayd_supports_chunks(sock)) { |
1426 | DBG("Refusing to close remote trace chunk: relayd does not support chunks"); | |
1427 | goto end; | |
1428 | } | |
1429 | ||
bbc4768c JG |
1430 | status = lttng_trace_chunk_get_id(chunk, &chunk_id); |
1431 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1432 | ERR("Failed to get trace chunk id"); | |
1433 | ret = -1; | |
1434 | goto end; | |
1435 | } | |
1436 | ||
1437 | status = lttng_trace_chunk_get_close_timestamp(chunk, &close_timestamp); | |
1438 | if (status != LTTNG_TRACE_CHUNK_STATUS_OK) { | |
1439 | ERR("Failed to get trace chunk close timestamp"); | |
1440 | ret = -1; | |
1441 | goto end; | |
1442 | } | |
1443 | ||
28ab034a | 1444 | status = lttng_trace_chunk_get_close_command(chunk, &close_command.value); |
bbc4768c JG |
1445 | switch (status) { |
1446 | case LTTNG_TRACE_CHUNK_STATUS_OK: | |
1447 | close_command.is_set = 1; | |
1448 | break; | |
1449 | case LTTNG_TRACE_CHUNK_STATUS_NONE: | |
1450 | break; | |
1451 | default: | |
1452 | ERR("Failed to get trace chunk close command"); | |
1453 | ret = -1; | |
1454 | goto end; | |
1455 | } | |
1456 | ||
1457 | msg = (typeof(msg)){ | |
1458 | .chunk_id = htobe64(chunk_id), | |
1459 | .close_timestamp = htobe64((uint64_t) close_timestamp), | |
1460 | .close_command = { | |
bbc4768c | 1461 | .is_set = close_command.is_set, |
55caead7 | 1462 | .value = htobe32((uint32_t) close_command.value), |
bbc4768c JG |
1463 | }, |
1464 | }; | |
1465 | ||
28ab034a | 1466 | ret = send_command(sock, RELAYD_CLOSE_TRACE_CHUNK, &msg, sizeof(msg), 0); |
bbc4768c JG |
1467 | if (ret < 0) { |
1468 | ERR("Failed to send trace chunk close command to relay daemon"); | |
1469 | goto end; | |
1470 | } | |
1471 | ||
1472 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1473 | if (ret < 0) { | |
1474 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1475 | goto end; | |
1476 | } | |
1477 | ||
ecd1a12f MD |
1478 | reply.path_length = be32toh(reply.path_length); |
1479 | if (reply.path_length >= LTTNG_PATH_MAX) { | |
1480 | ERR("Chunk path too long"); | |
1481 | ret = -1; | |
1482 | goto end; | |
1483 | } | |
1484 | ||
1485 | ret = recv_reply(sock, path, reply.path_length); | |
1486 | if (ret < 0) { | |
1487 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1488 | goto end; | |
1489 | } | |
1490 | if (path[reply.path_length - 1] != '\0') { | |
1491 | ERR("Invalid trace chunk path returned by relay daemon (not null-terminated)"); | |
1492 | ret = -1; | |
1493 | goto end; | |
1494 | } | |
1495 | ||
1496 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1497 | if (reply.generic.ret_code != LTTNG_OK) { | |
bbc4768c | 1498 | ret = -1; |
28ab034a | 1499 | ERR("Relayd trace chunk close replied error %d", reply.generic.ret_code); |
bbc4768c JG |
1500 | } else { |
1501 | ret = 0; | |
28ab034a | 1502 | DBG("Relayd successfully closed trace chunk: chunk_id = %" PRIu64, chunk_id); |
bbc4768c JG |
1503 | } |
1504 | end: | |
1505 | return ret; | |
1506 | } | |
c35f9726 JG |
1507 | |
1508 | int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock, | |
28ab034a JG |
1509 | uint64_t chunk_id, |
1510 | bool *chunk_exists) | |
c35f9726 JG |
1511 | { |
1512 | int ret = 0; | |
1513 | struct lttcomm_relayd_trace_chunk_exists msg = {}; | |
1514 | struct lttcomm_relayd_trace_chunk_exists_reply reply = {}; | |
1515 | ||
070b6a86 MD |
1516 | if (!relayd_supports_chunks(sock)) { |
1517 | DBG("Refusing to check for trace chunk existence: relayd does not support chunks"); | |
caa15afd JR |
1518 | /* The chunk will never exist */ |
1519 | *chunk_exists = false; | |
070b6a86 MD |
1520 | goto end; |
1521 | } | |
1522 | ||
c35f9726 | 1523 | msg = (typeof(msg)){ |
28ab034a | 1524 | .chunk_id = htobe64(chunk_id), |
c35f9726 JG |
1525 | }; |
1526 | ||
28ab034a | 1527 | ret = send_command(sock, RELAYD_TRACE_CHUNK_EXISTS, &msg, sizeof(msg), 0); |
c35f9726 JG |
1528 | if (ret < 0) { |
1529 | ERR("Failed to send trace chunk exists command to relay daemon"); | |
1530 | goto end; | |
1531 | } | |
1532 | ||
1533 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1534 | if (ret < 0) { | |
1535 | ERR("Failed to receive relay daemon trace chunk close command reply"); | |
1536 | goto end; | |
1537 | } | |
1538 | ||
1539 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1540 | if (reply.generic.ret_code != LTTNG_OK) { | |
1541 | ret = -1; | |
28ab034a | 1542 | ERR("Relayd trace chunk close replied error %d", reply.generic.ret_code); |
c35f9726 JG |
1543 | } else { |
1544 | ret = 0; | |
1545 | DBG("Relayd successfully checked trace chunk existence: chunk_id = %" PRIu64 | |
28ab034a JG |
1546 | ", exists = %s", |
1547 | chunk_id, | |
1548 | reply.trace_chunk_exists ? "true" : "false"); | |
c35f9726 JG |
1549 | *chunk_exists = !!reply.trace_chunk_exists; |
1550 | } | |
1551 | end: | |
1552 | return ret; | |
1553 | } | |
8614e600 MD |
1554 | |
1555 | int relayd_get_configuration(struct lttcomm_relayd_sock *sock, | |
28ab034a JG |
1556 | uint64_t query_flags, |
1557 | uint64_t *result_flags) | |
8614e600 MD |
1558 | { |
1559 | int ret = 0; | |
28ab034a | 1560 | struct lttcomm_relayd_get_configuration msg = (typeof(msg)){ |
8614e600 MD |
1561 | .query_flags = htobe64(query_flags), |
1562 | }; | |
1563 | struct lttcomm_relayd_get_configuration_reply reply = {}; | |
1564 | ||
1565 | if (!relayd_supports_get_configuration(sock)) { | |
1566 | DBG("Refusing to get relayd configuration (unsupported by relayd)"); | |
1567 | if (query_flags) { | |
1568 | ret = -1; | |
1569 | goto end; | |
1570 | } | |
1571 | *result_flags = 0; | |
1572 | goto end; | |
1573 | } | |
1574 | ||
28ab034a | 1575 | ret = send_command(sock, RELAYD_GET_CONFIGURATION, &msg, sizeof(msg), 0); |
8614e600 MD |
1576 | if (ret < 0) { |
1577 | ERR("Failed to send get configuration command to relay daemon"); | |
1578 | goto end; | |
1579 | } | |
1580 | ||
1581 | ret = recv_reply(sock, &reply, sizeof(reply)); | |
1582 | if (ret < 0) { | |
1583 | ERR("Failed to receive relay daemon get configuration command reply"); | |
1584 | goto end; | |
1585 | } | |
1586 | ||
1587 | reply.generic.ret_code = be32toh(reply.generic.ret_code); | |
1588 | if (reply.generic.ret_code != LTTNG_OK) { | |
1589 | ret = -1; | |
28ab034a | 1590 | ERR("Relayd get configuration replied error %d", reply.generic.ret_code); |
8614e600 | 1591 | } else { |
28ab034a | 1592 | reply.relayd_configuration_flags = be64toh(reply.relayd_configuration_flags); |
8614e600 MD |
1593 | ret = 0; |
1594 | DBG("Relayd successfully got configuration: query_flags = %" PRIu64 | |
28ab034a JG |
1595 | ", results_flags = %" PRIu64, |
1596 | query_flags, | |
1597 | reply.relayd_configuration_flags); | |
8614e600 MD |
1598 | *result_flags = reply.relayd_configuration_flags; |
1599 | } | |
1600 | end: | |
1601 | return ret; | |
1602 | } |