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