Commit | Line | Data |
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6e3805e2 | 1 | /* |
21cf9b6b | 2 | * Copyright (C) 2011 EfficiOS Inc. |
ab5be9fa | 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
fac6795d | 4 | * |
ab5be9fa | 5 | * SPDX-License-Identifier: GPL-2.0-only |
ba999de0 | 6 | * |
fac6795d DG |
7 | */ |
8 | ||
773168b7 | 9 | /* |
990570ed DG |
10 | * This header is meant for liblttng and libust internal use ONLY. These |
11 | * declarations should NOT be considered stable API. | |
773168b7 | 12 | */ |
fac6795d | 13 | |
990570ed DG |
14 | #ifndef _LTTNG_SESSIOND_COMM_H |
15 | #define _LTTNG_SESSIOND_COMM_H | |
16 | ||
fac6795d | 17 | #include <limits.h> |
f3ed775e | 18 | #include <lttng/lttng.h> |
c9e313bc SM |
19 | #include <lttng/snapshot-internal.hpp> |
20 | #include <lttng/save-internal.hpp> | |
21 | #include <lttng/channel-internal.hpp> | |
22 | #include <lttng/trigger/trigger-internal.hpp> | |
23 | #include <lttng/rotate-internal.hpp> | |
24 | #include <common/compat/socket.hpp> | |
40ebe219 | 25 | #include <common/compiler.hpp> |
c9e313bc SM |
26 | #include <common/uri.hpp> |
27 | #include <common/defaults.hpp> | |
28 | #include <common/uuid.hpp> | |
29 | #include <common/macros.hpp> | |
30 | #include <common/optional.hpp> | |
5e16da05 | 31 | |
6364a07a DG |
32 | #include <arpa/inet.h> |
33 | #include <netinet/in.h> | |
4222116f | 34 | #include <stdint.h> |
6364a07a DG |
35 | #include <sys/un.h> |
36 | ||
c9e313bc SM |
37 | #include "inet.hpp" |
38 | #include "inet6.hpp" | |
39 | #include <common/unix.hpp> | |
0d37f2bc | 40 | |
fac6795d | 41 | /* Queue size of listen(2) */ |
f158a754 | 42 | #define LTTNG_SESSIOND_COMM_MAX_LISTEN 64 |
fac6795d | 43 | |
990570ed | 44 | /* Maximum number of FDs that can be sent over a Unix socket */ |
0b5a4de9 JG |
45 | #if defined(__linux__) |
46 | /* Based on the kernel's SCM_MAX_FD which is 253 since 2.6.38 (255 before) */ | |
47 | #define LTTCOMM_MAX_SEND_FDS 253 | |
48 | #else | |
49 | #define LTTCOMM_MAX_SEND_FDS 16 | |
50 | #endif | |
990570ed | 51 | |
6abb15de | 52 | enum lttcomm_sessiond_command { |
37a5ef39 JG |
53 | LTTCOMM_SESSIOND_COMMAND_MIN, |
54 | LTTCOMM_SESSIOND_COMMAND_ADD_CONTEXT, | |
55 | LTTCOMM_SESSIOND_COMMAND_DISABLE_CHANNEL, | |
56 | LTTCOMM_SESSIOND_COMMAND_DISABLE_EVENT, | |
57 | LTTCOMM_SESSIOND_COMMAND_LIST_SYSCALLS, | |
58 | LTTCOMM_SESSIOND_COMMAND_ENABLE_CHANNEL, | |
59 | LTTCOMM_SESSIOND_COMMAND_ENABLE_EVENT, | |
60 | LTTCOMM_SESSIOND_COMMAND_DESTROY_SESSION, | |
61 | LTTCOMM_SESSIOND_COMMAND_LIST_CHANNELS, | |
62 | LTTCOMM_SESSIOND_COMMAND_LIST_DOMAINS, | |
63 | LTTCOMM_SESSIOND_COMMAND_LIST_EVENTS, | |
64 | LTTCOMM_SESSIOND_COMMAND_LIST_SESSIONS, | |
65 | LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINTS, | |
66 | LTTCOMM_SESSIOND_COMMAND_REGISTER_CONSUMER, | |
67 | LTTCOMM_SESSIOND_COMMAND_START_TRACE, | |
68 | LTTCOMM_SESSIOND_COMMAND_STOP_TRACE, | |
69 | LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINT_FIELDS, | |
70 | LTTCOMM_SESSIOND_COMMAND_DISABLE_CONSUMER, | |
71 | LTTCOMM_SESSIOND_COMMAND_ENABLE_CONSUMER, | |
72 | LTTCOMM_SESSIOND_COMMAND_SET_CONSUMER_URI, | |
73 | LTTCOMM_SESSIOND_COMMAND_DATA_PENDING, | |
74 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_ADD_OUTPUT, | |
75 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_DEL_OUTPUT, | |
76 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_LIST_OUTPUT, | |
77 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_RECORD, | |
78 | LTTCOMM_SESSIOND_COMMAND_SAVE_SESSION, | |
79 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE, | |
80 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE, | |
81 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_POLICY, | |
82 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_SET_POLICY, | |
83 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET, | |
84 | LTTCOMM_SESSIOND_COMMAND_SET_SESSION_SHM_PATH, | |
85 | LTTCOMM_SESSIOND_COMMAND_REGENERATE_METADATA, | |
86 | LTTCOMM_SESSIOND_COMMAND_REGENERATE_STATEDUMP, | |
87 | LTTCOMM_SESSIOND_COMMAND_REGISTER_TRIGGER, | |
88 | LTTCOMM_SESSIOND_COMMAND_UNREGISTER_TRIGGER, | |
89 | LTTCOMM_SESSIOND_COMMAND_ROTATE_SESSION, | |
90 | LTTCOMM_SESSIOND_COMMAND_ROTATION_GET_INFO, | |
91 | LTTCOMM_SESSIOND_COMMAND_ROTATION_SET_SCHEDULE, | |
92 | LTTCOMM_SESSIOND_COMMAND_SESSION_LIST_ROTATION_SCHEDULES, | |
93 | LTTCOMM_SESSIOND_COMMAND_CREATE_SESSION_EXT, | |
94 | LTTCOMM_SESSIOND_COMMAND_CLEAR_SESSION, | |
95 | LTTCOMM_SESSIOND_COMMAND_LIST_TRIGGERS, | |
96 | LTTCOMM_SESSIOND_COMMAND_EXECUTE_ERROR_QUERY, | |
6c1db447 | 97 | LTTCOMM_SESSIOND_COMMAND_MAX, |
7c9534d6 JD |
98 | }; |
99 | ||
6c1db447 JG |
100 | static inline |
101 | bool lttcomm_sessiond_command_is_valid(enum lttcomm_sessiond_command cmd) | |
102 | { | |
103 | return cmd > LTTCOMM_SESSIOND_COMMAND_MIN && cmd < LTTCOMM_SESSIOND_COMMAND_MAX; | |
104 | } | |
105 | ||
19f912db FD |
106 | static inline |
107 | const char *lttcomm_sessiond_command_str(enum lttcomm_sessiond_command cmd) | |
108 | { | |
109 | switch (cmd) { | |
37a5ef39 JG |
110 | case LTTCOMM_SESSIOND_COMMAND_ADD_CONTEXT: |
111 | return "ADD_CONTEXT"; | |
112 | case LTTCOMM_SESSIOND_COMMAND_DISABLE_CHANNEL: | |
113 | return "DISABLE_CHANNEL"; | |
114 | case LTTCOMM_SESSIOND_COMMAND_DISABLE_EVENT: | |
115 | return "DISABLE_EVENT"; | |
116 | case LTTCOMM_SESSIOND_COMMAND_LIST_SYSCALLS: | |
117 | return "LIST_SYSCALLS"; | |
118 | case LTTCOMM_SESSIOND_COMMAND_ENABLE_CHANNEL: | |
119 | return "ENABLE_CHANNEL"; | |
120 | case LTTCOMM_SESSIOND_COMMAND_ENABLE_EVENT: | |
121 | return "ENABLE_EVENT"; | |
122 | case LTTCOMM_SESSIOND_COMMAND_DESTROY_SESSION: | |
123 | return "DESTROY_SESSION"; | |
124 | case LTTCOMM_SESSIOND_COMMAND_LIST_CHANNELS: | |
125 | return "LIST_CHANNELS"; | |
126 | case LTTCOMM_SESSIOND_COMMAND_LIST_DOMAINS: | |
127 | return "LIST_DOMAINS"; | |
128 | case LTTCOMM_SESSIOND_COMMAND_LIST_EVENTS: | |
129 | return "LIST_EVENTS"; | |
130 | case LTTCOMM_SESSIOND_COMMAND_LIST_SESSIONS: | |
131 | return "LIST_SESSIONS"; | |
132 | case LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINTS: | |
133 | return "LIST_TRACEPOINTS"; | |
134 | case LTTCOMM_SESSIOND_COMMAND_REGISTER_CONSUMER: | |
135 | return "REGISTER_CONSUMER"; | |
136 | case LTTCOMM_SESSIOND_COMMAND_START_TRACE: | |
137 | return "START_TRACE"; | |
138 | case LTTCOMM_SESSIOND_COMMAND_STOP_TRACE: | |
139 | return "STOP_TRACE"; | |
140 | case LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINT_FIELDS: | |
141 | return "LIST_TRACEPOINT_FIELDS"; | |
142 | case LTTCOMM_SESSIOND_COMMAND_DISABLE_CONSUMER: | |
143 | return "DISABLE_CONSUMER"; | |
144 | case LTTCOMM_SESSIOND_COMMAND_ENABLE_CONSUMER: | |
145 | return "ENABLE_CONSUMER"; | |
146 | case LTTCOMM_SESSIOND_COMMAND_SET_CONSUMER_URI: | |
147 | return "SET_CONSUMER_URI"; | |
148 | case LTTCOMM_SESSIOND_COMMAND_DATA_PENDING: | |
149 | return "DATA_PENDING"; | |
150 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_ADD_OUTPUT: | |
151 | return "SNAPSHOT_ADD_OUTPUT"; | |
152 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_DEL_OUTPUT: | |
153 | return "SNAPSHOT_DEL_OUTPUT"; | |
154 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_LIST_OUTPUT: | |
155 | return "SNAPSHOT_LIST_OUTPUT"; | |
156 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_RECORD: | |
157 | return "SNAPSHOT_RECORD"; | |
158 | case LTTCOMM_SESSIOND_COMMAND_SAVE_SESSION: | |
159 | return "SAVE_SESSION"; | |
160 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE: | |
161 | return "PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE"; | |
162 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE: | |
163 | return "PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE"; | |
164 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_POLICY: | |
165 | return "PROCESS_ATTR_TRACKER_GET_POLICY"; | |
166 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_SET_POLICY: | |
167 | return "PROCESS_ATTR_TRACKER_SET_POLICY"; | |
168 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET: | |
169 | return "PROCESS_ATTR_TRACKER_GET_INCLUSION_SET"; | |
170 | case LTTCOMM_SESSIOND_COMMAND_SET_SESSION_SHM_PATH: | |
171 | return "SET_SESSION_SHM_PATH"; | |
172 | case LTTCOMM_SESSIOND_COMMAND_REGENERATE_METADATA: | |
173 | return "REGENERATE_METADATA"; | |
174 | case LTTCOMM_SESSIOND_COMMAND_REGENERATE_STATEDUMP: | |
175 | return "REGENERATE_STATEDUMP"; | |
176 | case LTTCOMM_SESSIOND_COMMAND_REGISTER_TRIGGER: | |
177 | return "REGISTER_TRIGGER"; | |
178 | case LTTCOMM_SESSIOND_COMMAND_UNREGISTER_TRIGGER: | |
179 | return "UNREGISTER_TRIGGER"; | |
180 | case LTTCOMM_SESSIOND_COMMAND_ROTATE_SESSION: | |
181 | return "ROTATE_SESSION"; | |
182 | case LTTCOMM_SESSIOND_COMMAND_ROTATION_GET_INFO: | |
183 | return "ROTATION_GET_INFO"; | |
184 | case LTTCOMM_SESSIOND_COMMAND_ROTATION_SET_SCHEDULE: | |
185 | return "ROTATION_SET_SCHEDULE"; | |
186 | case LTTCOMM_SESSIOND_COMMAND_SESSION_LIST_ROTATION_SCHEDULES: | |
187 | return "SESSION_LIST_ROTATION_SCHEDULES"; | |
188 | case LTTCOMM_SESSIOND_COMMAND_CREATE_SESSION_EXT: | |
189 | return "CREATE_SESSION_EXT"; | |
190 | case LTTCOMM_SESSIOND_COMMAND_CLEAR_SESSION: | |
191 | return "CLEAR_SESSION"; | |
192 | case LTTCOMM_SESSIOND_COMMAND_LIST_TRIGGERS: | |
193 | return "LIST_TRIGGERS"; | |
194 | case LTTCOMM_SESSIOND_COMMAND_EXECUTE_ERROR_QUERY: | |
195 | return "EXECUTE_ERROR_QUERY"; | |
19f912db FD |
196 | default: |
197 | abort(); | |
198 | } | |
199 | } | |
200 | ||
7c9534d6 JD |
201 | enum lttcomm_relayd_command { |
202 | RELAYD_ADD_STREAM = 1, | |
203 | RELAYD_CREATE_SESSION = 2, | |
204 | RELAYD_START_DATA = 3, | |
205 | RELAYD_UPDATE_SYNC_INFO = 4, | |
206 | RELAYD_VERSION = 5, | |
207 | RELAYD_SEND_METADATA = 6, | |
208 | RELAYD_CLOSE_STREAM = 7, | |
209 | RELAYD_DATA_PENDING = 8, | |
210 | RELAYD_QUIESCENT_CONTROL = 9, | |
211 | RELAYD_BEGIN_DATA_PENDING = 10, | |
212 | RELAYD_END_DATA_PENDING = 11, | |
1c20f0e2 JD |
213 | RELAYD_ADD_INDEX = 12, |
214 | RELAYD_SEND_INDEX = 13, | |
215 | RELAYD_CLOSE_INDEX = 14, | |
a4baae1b | 216 | /* Live-reading commands (2.4+). */ |
d3e2ba59 | 217 | RELAYD_LIST_SESSIONS = 15, |
a4baae1b JD |
218 | /* All streams of the channel have been sent to the relayd (2.4+). */ |
219 | RELAYD_STREAMS_SENT = 16, | |
93ec662e JD |
220 | /* Ask the relay to reset the metadata trace file (2.8+) */ |
221 | RELAYD_RESET_METADATA = 17, | |
c35f9726 JG |
222 | /* Ask the relay to rotate a set of stream files (2.11+) */ |
223 | RELAYD_ROTATE_STREAMS = 18, | |
e5add6d0 JG |
224 | /* Ask the relay to create a trace chunk (2.11+) */ |
225 | RELAYD_CREATE_TRACE_CHUNK = 19, | |
bbc4768c JG |
226 | /* Ask the relay to close a trace chunk (2.11+) */ |
227 | RELAYD_CLOSE_TRACE_CHUNK = 20, | |
c35f9726 JG |
228 | /* Ask the relay whether a trace chunk exists (2.11+) */ |
229 | RELAYD_TRACE_CHUNK_EXISTS = 21, | |
8614e600 MD |
230 | /* Get the current configuration of a relayd peer (2.12+) */ |
231 | RELAYD_GET_CONFIGURATION = 22, | |
3fe73a46 MD |
232 | |
233 | /* Feature branch specific commands start at 10000. */ | |
fac6795d DG |
234 | }; |
235 | ||
00e71031 FD |
236 | static inline |
237 | const char *lttcomm_relayd_command_str(lttcomm_relayd_command cmd) | |
238 | { | |
239 | switch (cmd) { | |
240 | case RELAYD_ADD_STREAM: | |
241 | return "RELAYD_ADD_STREAM"; | |
242 | case RELAYD_CREATE_SESSION: | |
243 | return "RELAYD_CREATE_SESSION"; | |
244 | case RELAYD_START_DATA: | |
245 | return "RELAYD_START_DATA"; | |
246 | case RELAYD_UPDATE_SYNC_INFO: | |
247 | return "RELAYD_UPDATE_SYNC_INFO"; | |
248 | case RELAYD_VERSION: | |
249 | return "RELAYD_VERSION"; | |
250 | case RELAYD_SEND_METADATA: | |
251 | return "RELAYD_SEND_METADATA"; | |
252 | case RELAYD_CLOSE_STREAM: | |
253 | return "RELAYD_CLOSE_STREAM"; | |
254 | case RELAYD_DATA_PENDING: | |
255 | return "RELAYD_DATA_PENDING"; | |
256 | case RELAYD_QUIESCENT_CONTROL: | |
257 | return "RELAYD_QUIESCENT_CONTROL"; | |
258 | case RELAYD_BEGIN_DATA_PENDING: | |
259 | return "RELAYD_BEGIN_DATA_PENDING"; | |
260 | case RELAYD_END_DATA_PENDING: | |
261 | return "RELAYD_END_DATA_PENDING"; | |
262 | case RELAYD_ADD_INDEX: | |
263 | return "RELAYD_ADD_INDEX"; | |
264 | case RELAYD_SEND_INDEX: | |
265 | return "RELAYD_SEND_INDEX"; | |
266 | case RELAYD_CLOSE_INDEX: | |
267 | return "RELAYD_CLOSE_INDEX"; | |
268 | case RELAYD_LIST_SESSIONS: | |
269 | return "RELAYD_LIST_SESSIONS"; | |
270 | case RELAYD_STREAMS_SENT: | |
271 | return "RELAYD_STREAMS_SENT"; | |
272 | case RELAYD_RESET_METADATA: | |
273 | return "RELAYD_RESET_METADATA"; | |
274 | case RELAYD_ROTATE_STREAMS: | |
275 | return "RELAYD_ROTATE_STREAMS"; | |
276 | case RELAYD_CREATE_TRACE_CHUNK: | |
277 | return "RELAYD_CREATE_TRACE_CHUNK"; | |
278 | case RELAYD_CLOSE_TRACE_CHUNK: | |
279 | return "RELAYD_CLOSE_TRACE_CHUNK"; | |
280 | case RELAYD_TRACE_CHUNK_EXISTS: | |
281 | return "RELAYD_TRACE_CHUNK_EXISTS"; | |
282 | case RELAYD_GET_CONFIGURATION: | |
283 | return "RELAYD_GET_CONFIGURATION"; | |
284 | default: | |
285 | abort(); | |
286 | } | |
287 | } | |
288 | ||
fac6795d DG |
289 | /* |
290 | * lttcomm error code. | |
291 | */ | |
292 | enum lttcomm_return_code { | |
0c759fc9 | 293 | LTTCOMM_CONSUMERD_SUCCESS = 0, /* Everything went fine. */ |
d2956687 JG |
294 | /* |
295 | * Some code paths use -1 to express an error, others | |
296 | * negate this consumer return code. Starting codes at | |
297 | * 100 ensures there is no mix-up between this error value | |
298 | * and legitimate status codes. | |
299 | */ | |
300 | LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 100, /* Command socket ready */ | |
f73fabfd DG |
301 | LTTCOMM_CONSUMERD_SUCCESS_RECV_FD, /* Success on receiving fds */ |
302 | LTTCOMM_CONSUMERD_ERROR_RECV_FD, /* Error on receiving fds */ | |
303 | LTTCOMM_CONSUMERD_ERROR_RECV_CMD, /* Error on receiving command */ | |
304 | LTTCOMM_CONSUMERD_POLL_ERROR, /* Error in polling thread */ | |
305 | LTTCOMM_CONSUMERD_POLL_NVAL, /* Poll on closed fd */ | |
306 | LTTCOMM_CONSUMERD_POLL_HUP, /* All fds have hungup */ | |
307 | LTTCOMM_CONSUMERD_EXIT_SUCCESS, /* Consumerd exiting normally */ | |
308 | LTTCOMM_CONSUMERD_EXIT_FAILURE, /* Consumerd exiting on error */ | |
309 | LTTCOMM_CONSUMERD_OUTFD_ERROR, /* Error opening the tracefile */ | |
310 | LTTCOMM_CONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */ | |
311 | LTTCOMM_CONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */ | |
312 | LTTCOMM_CONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */ | |
313 | LTTCOMM_CONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */ | |
ffe60014 | 314 | LTTCOMM_CONSUMERD_ENOMEM, /* Consumer is out of memory */ |
d88aee68 DG |
315 | LTTCOMM_CONSUMERD_ERROR_METADATA, /* Error with metadata. */ |
316 | LTTCOMM_CONSUMERD_FATAL, /* Fatal error. */ | |
618a6a28 | 317 | LTTCOMM_CONSUMERD_RELAYD_FAIL, /* Error on remote relayd */ |
0c759fc9 | 318 | LTTCOMM_CONSUMERD_CHANNEL_FAIL, /* Channel creation failed. */ |
e462382a | 319 | LTTCOMM_CONSUMERD_CHAN_NOT_FOUND, /* Channel not found. */ |
e9404c27 | 320 | LTTCOMM_CONSUMERD_ALREADY_SET, /* Resource already set. */ |
92b7a7f8 | 321 | LTTCOMM_CONSUMERD_ROTATION_FAIL, /* Rotation has failed. */ |
3eb928aa | 322 | LTTCOMM_CONSUMERD_SNAPSHOT_FAILED, /* snapshot has failed. */ |
d2956687 | 323 | LTTCOMM_CONSUMERD_CREATE_TRACE_CHUNK_FAILED,/* Trace chunk creation failed. */ |
64efa44e | 324 | LTTCOMM_CONSUMERD_CLOSE_TRACE_CHUNK_FAILED, /* Trace chunk close failed. */ |
d2956687 JG |
325 | LTTCOMM_CONSUMERD_INVALID_PARAMETERS, /* Invalid parameters. */ |
326 | LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL, /* Trace chunk exists on consumer daemon. */ | |
327 | LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE,/* Trace chunk exists on relay daemon. */ | |
328 | LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK, /* Unknown trace chunk. */ | |
b01b201a | 329 | LTTCOMM_CONSUMERD_RELAYD_CLEAR_DISALLOWED, /* Relayd does not accept clear command. */ |
04ed9e10 | 330 | LTTCOMM_CONSUMERD_UNKNOWN_ERROR, /* Unknown error. */ |
80e327fa | 331 | |
20fe2104 DG |
332 | /* MUST be last element */ |
333 | LTTCOMM_NR, /* Last element */ | |
fac6795d DG |
334 | }; |
335 | ||
de5e9086 DG |
336 | /* lttng socket protocol. */ |
337 | enum lttcomm_sock_proto { | |
338 | LTTCOMM_SOCK_UDP, | |
339 | LTTCOMM_SOCK_TCP, | |
340 | }; | |
341 | ||
342 | /* | |
343 | * Index in the net_families array below. Please keep in sync! | |
344 | */ | |
345 | enum lttcomm_sock_domain { | |
01d0a631 CB |
346 | LTTCOMM_INET = 0, |
347 | LTTCOMM_INET6 = 1, | |
de5e9086 DG |
348 | }; |
349 | ||
331744e3 JD |
350 | enum lttcomm_metadata_command { |
351 | LTTCOMM_METADATA_REQUEST = 1, | |
352 | }; | |
353 | ||
354 | /* | |
355 | * Commands sent from the consumerd to the sessiond to request if new metadata | |
356 | * is available. This message is used to find the per UID _or_ per PID registry | |
357 | * for the channel key. For per UID lookup, the triplet | |
358 | * bits_per_long/uid/session_id is used. On lookup failure, we search for the | |
359 | * per PID registry indexed by session id ignoring the other values. | |
360 | */ | |
361 | struct lttcomm_metadata_request_msg { | |
1950109e JD |
362 | uint64_t session_id; /* Tracing session id */ |
363 | uint64_t session_id_per_pid; /* Tracing session id for per-pid */ | |
331744e3 JD |
364 | uint32_t bits_per_long; /* Consumer ABI */ |
365 | uint32_t uid; | |
366 | uint64_t key; /* Metadata channel key. */ | |
367 | } LTTNG_PACKED; | |
368 | ||
de5e9086 DG |
369 | struct lttcomm_sockaddr { |
370 | enum lttcomm_sock_domain type; | |
371 | union { | |
372 | struct sockaddr_in sin; | |
373 | struct sockaddr_in6 sin6; | |
374 | } addr; | |
4222116f | 375 | }; |
de5e9086 DG |
376 | |
377 | struct lttcomm_sock { | |
d88aee68 | 378 | int32_t fd; |
de5e9086 DG |
379 | enum lttcomm_sock_proto proto; |
380 | struct lttcomm_sockaddr sockaddr; | |
381 | const struct lttcomm_proto_ops *ops; | |
4222116f | 382 | }; |
de5e9086 | 383 | |
6151a90f JD |
384 | /* |
385 | * Relayd sock. Adds the protocol version to use for the communications with | |
386 | * the relayd. | |
387 | */ | |
388 | struct lttcomm_relayd_sock { | |
389 | struct lttcomm_sock sock; | |
390 | uint32_t major; | |
391 | uint32_t minor; | |
4222116f | 392 | }; |
6151a90f | 393 | |
de5e9086 DG |
394 | struct lttcomm_net_family { |
395 | int family; | |
396 | int (*create) (struct lttcomm_sock *sock, int type, int proto); | |
397 | }; | |
398 | ||
399 | struct lttcomm_proto_ops { | |
400 | int (*bind) (struct lttcomm_sock *sock); | |
401 | int (*close) (struct lttcomm_sock *sock); | |
402 | int (*connect) (struct lttcomm_sock *sock); | |
403 | struct lttcomm_sock *(*accept) (struct lttcomm_sock *sock); | |
404 | int (*listen) (struct lttcomm_sock *sock, int backlog); | |
405 | ssize_t (*recvmsg) (struct lttcomm_sock *sock, void *buf, size_t len, | |
406 | int flags); | |
c2d69327 JG |
407 | ssize_t (*sendmsg) (struct lttcomm_sock *sock, const void *buf, |
408 | size_t len, int flags); | |
de5e9086 DG |
409 | }; |
410 | ||
159b042f JG |
411 | struct process_attr_integral_value_comm { |
412 | union { | |
413 | int64_t _signed; | |
414 | uint64_t _unsigned; | |
415 | } u; | |
416 | } LTTNG_PACKED; | |
417 | ||
fac6795d | 418 | /* |
9bda164d | 419 | * Data structure received from lttng client to session daemon. |
fac6795d DG |
420 | */ |
421 | struct lttcomm_session_msg { | |
d0b96690 | 422 | uint32_t cmd_type; /* enum lttcomm_sessiond_command */ |
42abccdb | 423 | struct lttng_session session; |
9f19cc17 | 424 | struct lttng_domain domain; |
fac6795d | 425 | union { |
f3ed775e | 426 | /* Event data */ |
fac6795d | 427 | struct { |
db8870ed | 428 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
8ddd72ef | 429 | uint32_t length; |
fc5e05b7 | 430 | } LTTNG_PACKED enable; |
6e911cad MD |
431 | struct { |
432 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; | |
8ddd72ef | 433 | uint32_t length; |
6e911cad | 434 | } LTTNG_PACKED disable; |
f3ed775e DG |
435 | /* Create channel */ |
436 | struct { | |
999af9c1 | 437 | uint32_t length; |
fc5e05b7 | 438 | } LTTNG_PACKED channel; |
d65106b1 DG |
439 | /* Context */ |
440 | struct { | |
db8870ed | 441 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
26e1c61f | 442 | uint32_t length; |
fc5e05b7 | 443 | } LTTNG_PACKED context; |
d9800920 DG |
444 | /* Use by register_consumer */ |
445 | struct { | |
446 | char path[PATH_MAX]; | |
fc5e05b7 | 447 | } LTTNG_PACKED reg; |
9f19cc17 DG |
448 | /* List */ |
449 | struct { | |
db8870ed | 450 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
fc5e05b7 | 451 | } LTTNG_PACKED list; |
d0254c7c | 452 | struct lttng_calibrate calibrate; |
a4b92340 | 453 | /* Used by the set_consumer_url and used by create_session also call */ |
de5e9086 | 454 | struct { |
a4b92340 DG |
455 | /* Number of lttng_uri following */ |
456 | uint32_t size; | |
fc5e05b7 | 457 | } LTTNG_PACKED uri; |
da3c9ec1 | 458 | struct { |
7bd95aee | 459 | struct lttng_snapshot_output output; |
da3c9ec1 DG |
460 | } LTTNG_PACKED snapshot_output; |
461 | struct { | |
462 | uint32_t wait; | |
7bd95aee | 463 | struct lttng_snapshot_output output; |
da3c9ec1 | 464 | } LTTNG_PACKED snapshot_record; |
ecc48a90 JD |
465 | struct { |
466 | uint32_t nb_uri; | |
467 | unsigned int timer_interval; /* usec */ | |
468 | } LTTNG_PACKED session_live; | |
00c76cea | 469 | struct { |
7bd95aee | 470 | struct lttng_save_session_attr attr; |
00c76cea | 471 | } LTTNG_PACKED save_session; |
d7ba1388 MD |
472 | struct { |
473 | char shm_path[PATH_MAX]; | |
474 | } LTTNG_PACKED set_shm_path; | |
ccf10263 | 475 | struct { |
159b042f JG |
476 | /* enum lttng_process_attr */ |
477 | int32_t process_attr; | |
478 | /* enum lttng_process_attr_value_type */ | |
479 | int32_t value_type; | |
480 | ||
481 | struct process_attr_integral_value_comm integral_value; | |
55c9e7ca | 482 | /* |
159b042f JG |
483 | * For user/group names, a variable length, |
484 | * zero-terminated, string of length 'name_len' | |
485 | * (including the terminator) follows. | |
486 | * | |
487 | * integral_value should not be used in those cases. | |
55c9e7ca | 488 | */ |
159b042f JG |
489 | uint32_t name_len; |
490 | } LTTNG_PACKED process_attr_tracker_add_remove_include_value; | |
55c9e7ca | 491 | struct { |
159b042f JG |
492 | /* enum lttng_process_attr */ |
493 | int32_t process_attr; | |
494 | } LTTNG_PACKED process_attr_tracker_get_inclusion_set; | |
495 | struct { | |
496 | /* enum lttng_process_attr */ | |
497 | int32_t process_attr; | |
498 | } LTTNG_PACKED process_attr_tracker_get_tracking_policy; | |
499 | struct { | |
500 | /* enum lttng_process_attr */ | |
501 | int32_t process_attr; | |
502 | /* enum lttng_tracking_policy */ | |
503 | int32_t tracking_policy; | |
504 | } LTTNG_PACKED process_attr_tracker_set_tracking_policy; | |
e9404c27 JG |
505 | struct { |
506 | uint32_t length; | |
0efb2ad7 | 507 | uint8_t is_trigger_anonymous; |
e9404c27 | 508 | } LTTNG_PACKED trigger; |
b99a0cb3 JG |
509 | struct { |
510 | uint32_t length; | |
511 | } LTTNG_PACKED error_query; | |
d88744a4 | 512 | struct { |
d68c9a04 JD |
513 | uint64_t rotation_id; |
514 | } LTTNG_PACKED get_rotation_info; | |
259c2674 | 515 | struct { |
66ea93b1 JG |
516 | /* enum lttng_rotation_schedule_type */ |
517 | uint8_t type; | |
518 | /* | |
519 | * If set == 1, set schedule to value, if set == 0, | |
520 | * clear this schedule type. | |
521 | */ | |
522 | uint8_t set; | |
523 | uint64_t value; | |
524 | } LTTNG_PACKED rotation_set_schedule; | |
b178f53e JG |
525 | struct { |
526 | /* | |
527 | * Includes the null-terminator. | |
528 | * Must be an absolute path. | |
529 | * | |
530 | * Size bounded by LTTNG_PATH_MAX. | |
531 | */ | |
532 | uint16_t home_dir_size; | |
533 | uint64_t session_descriptor_size; | |
534 | /* An lttng_session_descriptor follows. */ | |
535 | } LTTNG_PACKED create_session; | |
fac6795d | 536 | } u; |
99608320 JR |
537 | /* Count of fds sent. */ |
538 | uint32_t fd_count; | |
fc5e05b7 | 539 | } LTTNG_PACKED; |
fac6795d | 540 | |
d93c4f1f | 541 | #define LTTNG_FILTER_MAX_LEN 65536 |
b178f53e | 542 | #define LTTNG_SESSION_DESCRIPTOR_MAX_LEN 65536 |
53a80697 MD |
543 | |
544 | /* | |
545 | * Filter bytecode data. The reloc table is located at the end of the | |
546 | * bytecode. It is made of tuples: (uint16_t, var. len. string). It | |
547 | * starts at reloc_table_offset. | |
548 | */ | |
b6bbed5f | 549 | #define LTTNG_FILTER_PADDING 32 |
2b00d462 | 550 | struct lttng_bytecode { |
d93c4f1f CB |
551 | uint32_t len; /* len of data */ |
552 | uint32_t reloc_table_offset; | |
f3f0db50 | 553 | uint64_t seqnum; |
b6bbed5f | 554 | char padding[LTTNG_FILTER_PADDING]; |
53a80697 | 555 | char data[0]; |
fc5e05b7 | 556 | } LTTNG_PACKED; |
53a80697 | 557 | |
579640f9 JI |
558 | /* |
559 | * Event exclusion data. At the end of the structure, there will actually | |
560 | * by zero or more names, where the actual number of names is given by | |
561 | * the 'count' item of the structure. | |
562 | */ | |
563 | #define LTTNG_EVENT_EXCLUSION_PADDING 32 | |
564 | struct lttng_event_exclusion { | |
565 | uint32_t count; | |
566 | char padding[LTTNG_EVENT_EXCLUSION_PADDING]; | |
40ebe219 | 567 | char names[LTTNG_FLEXIBLE_ARRAY_MEMBER_LENGTH][LTTNG_SYMBOL_NAME_LEN]; |
579640f9 JI |
568 | } LTTNG_PACKED; |
569 | ||
d7af3565 | 570 | #define LTTNG_EVENT_EXCLUSION_NAME_AT(_exclusion, _i) \ |
62e6775c | 571 | ((_exclusion)->names[_i]) |
d7af3565 | 572 | |
999af9c1 JR |
573 | /* |
574 | * Listing command header. | |
575 | */ | |
576 | struct lttcomm_list_command_header { | |
577 | /* Number of elements */ | |
578 | uint32_t count; | |
579 | } LTTNG_PACKED; | |
580 | ||
b4e3ceb9 PP |
581 | /* |
582 | * Event extended info header. This is the structure preceding each | |
583 | * extended info data. | |
584 | */ | |
585 | struct lttcomm_event_extended_header { | |
586 | /* | |
587 | * Size of filter string immediately following this header. | |
588 | * This size includes the terminal null character. | |
589 | */ | |
590 | uint32_t filter_len; | |
795d57ce PP |
591 | |
592 | /* | |
593 | * Number of exclusion names, immediately following the filter | |
594 | * string. Each exclusion name has a fixed length of | |
595 | * LTTNG_SYMBOL_NAME_LEN bytes, including the terminal null | |
596 | * character. | |
597 | */ | |
598 | uint32_t nb_exclusions; | |
56f0bc67 JG |
599 | |
600 | /* | |
601 | * Size of the event's userspace probe location (if applicable). | |
602 | */ | |
603 | uint32_t userspace_probe_location_len; | |
b4e3ceb9 PP |
604 | } LTTNG_PACKED; |
605 | ||
3e3665b8 | 606 | /* |
37a5ef39 | 607 | * Command header of the reply to an LTTCOMM_SESSIOND_COMMAND_DESTROY_SESSION command. |
3e3665b8 JG |
608 | */ |
609 | struct lttcomm_session_destroy_command_header { | |
610 | /* enum lttng_session */ | |
611 | int32_t rotation_state; | |
612 | }; | |
613 | ||
55c9e7ca JR |
614 | /* |
615 | * tracker command header. | |
616 | */ | |
617 | struct lttcomm_tracker_command_header { | |
618 | uint32_t nb_tracker_id; | |
619 | } LTTNG_PACKED; | |
620 | ||
fac6795d | 621 | /* |
5e16da05 | 622 | * Data structure for the response from sessiond to the lttng client. |
fac6795d | 623 | */ |
5461b305 | 624 | struct lttcomm_lttng_msg { |
d0b96690 DG |
625 | uint32_t cmd_type; /* enum lttcomm_sessiond_command */ |
626 | uint32_t ret_code; /* enum lttcomm_return_code */ | |
627 | uint32_t pid; /* pid_t */ | |
795a978d | 628 | uint32_t cmd_header_size; |
773168b7 | 629 | uint32_t data_size; |
e368fb43 | 630 | uint32_t fd_count; |
fc5e05b7 | 631 | } LTTNG_PACKED; |
fac6795d | 632 | |
da3c9ec1 DG |
633 | struct lttcomm_lttng_output_id { |
634 | uint32_t id; | |
635 | } LTTNG_PACKED; | |
636 | ||
6e3805e2 | 637 | /* |
3bd1e081 MD |
638 | * lttcomm_consumer_msg is the message sent from sessiond to consumerd |
639 | * to either add a channel, add a stream, update a stream, or stop | |
640 | * operation. | |
6e3805e2 | 641 | */ |
3bd1e081 | 642 | struct lttcomm_consumer_msg { |
92816cc3 | 643 | uint32_t cmd_type; /* enum lttng_consumer_command */ |
3bd1e081 MD |
644 | union { |
645 | struct { | |
d88aee68 | 646 | uint64_t channel_key; |
ffe60014 | 647 | uint64_t session_id; |
d2956687 | 648 | /* ID of the session's current trace chunk. */ |
0a30bf9b | 649 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id; |
ffe60014 | 650 | char pathname[PATH_MAX]; |
d88aee68 | 651 | uint64_t relayd_id; |
c30aaa51 | 652 | /* nb_init_streams is the number of streams open initially. */ |
d88aee68 | 653 | uint32_t nb_init_streams; |
de5e9086 | 654 | char name[LTTNG_SYMBOL_NAME_LEN]; |
ffe60014 DG |
655 | /* Use splice or mmap to consume this fd */ |
656 | enum lttng_event_output output; | |
657 | int type; /* Per cpu or metadata. */ | |
1624d5b7 JD |
658 | uint64_t tracefile_size; /* bytes */ |
659 | uint32_t tracefile_count; /* number of tracefiles */ | |
2bba9e53 DG |
660 | /* If the channel's streams have to be monitored or not. */ |
661 | uint32_t monitor; | |
ecc48a90 JD |
662 | /* timer to check the streams usage in live mode (usec). */ |
663 | unsigned int live_timer_interval; | |
a2814ea7 JG |
664 | /* is part of a live session */ |
665 | uint8_t is_live; | |
e9404c27 JG |
666 | /* timer to sample a channel's positions (usec). */ |
667 | unsigned int monitor_timer_interval; | |
ffe60014 | 668 | } LTTNG_PACKED channel; /* Only used by Kernel. */ |
3bd1e081 | 669 | struct { |
d88aee68 DG |
670 | uint64_t stream_key; |
671 | uint64_t channel_key; | |
672 | int32_t cpu; /* On which CPU this stream is assigned. */ | |
6dc3064a DG |
673 | /* Tells the consumer if the stream should be or not monitored. */ |
674 | uint32_t no_monitor; | |
ffe60014 | 675 | } LTTNG_PACKED stream; /* Only used by Kernel. */ |
de5e9086 | 676 | struct { |
d88aee68 | 677 | uint64_t net_index; |
de5e9086 | 678 | enum lttng_stream_type type; |
4222116f JR |
679 | uint32_t major; |
680 | uint32_t minor; | |
681 | uint8_t relayd_socket_protocol; | |
46e6455f DG |
682 | /* Tracing session id associated to the relayd. */ |
683 | uint64_t session_id; | |
d3e2ba59 JD |
684 | /* Relayd session id, only used with control socket. */ |
685 | uint64_t relayd_session_id; | |
fc5e05b7 | 686 | } LTTNG_PACKED relayd_sock; |
173af62f DG |
687 | struct { |
688 | uint64_t net_seq_idx; | |
fc5e05b7 | 689 | } LTTNG_PACKED destroy_relayd; |
53632229 DG |
690 | struct { |
691 | uint64_t session_id; | |
fc5e05b7 | 692 | } LTTNG_PACKED data_pending; |
ffe60014 | 693 | struct { |
d0b96690 DG |
694 | uint64_t subbuf_size; /* bytes */ |
695 | uint64_t num_subbuf; /* power of 2 */ | |
d88aee68 DG |
696 | int32_t overwrite; /* 1: overwrite, 0: discard */ |
697 | uint32_t switch_timer_interval; /* usec */ | |
698 | uint32_t read_timer_interval; /* usec */ | |
e9404c27 | 699 | unsigned int live_timer_interval; /* usec */ |
a2814ea7 | 700 | uint8_t is_live; /* is part of a live session */ |
e9404c27 | 701 | uint32_t monitor_timer_interval; /* usec */ |
d88aee68 DG |
702 | int32_t output; /* splice, mmap */ |
703 | int32_t type; /* metadata or per_cpu */ | |
d0b96690 DG |
704 | uint64_t session_id; /* Tracing session id */ |
705 | char pathname[PATH_MAX]; /* Channel file path. */ | |
ffe60014 | 706 | char name[LTTNG_SYMBOL_NAME_LEN]; /* Channel name. */ |
d2956687 JG |
707 | /* Credentials used to open the UST buffer shared mappings. */ |
708 | struct { | |
709 | uint32_t uid; | |
710 | uint32_t gid; | |
711 | } LTTNG_PACKED buffer_credentials; | |
d88aee68 DG |
712 | uint64_t relayd_id; /* Relayd id if apply. */ |
713 | uint64_t key; /* Unique channel key. */ | |
d2956687 | 714 | /* ID of the session's current trace chunk. */ |
0a30bf9b | 715 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id; |
c70636a7 | 716 | unsigned char uuid[LTTNG_UUID_LEN]; /* uuid for ust tracer. */ |
7972aab2 | 717 | uint32_t chan_id; /* Channel ID on the tracer side. */ |
1624d5b7 JD |
718 | uint64_t tracefile_size; /* bytes */ |
719 | uint32_t tracefile_count; /* number of tracefiles */ | |
1950109e | 720 | uint64_t session_id_per_pid; /* Per-pid session ID. */ |
2bba9e53 DG |
721 | /* Tells the consumer if the stream should be or not monitored. */ |
722 | uint32_t monitor; | |
567eb353 DG |
723 | /* |
724 | * For UST per UID buffers, this is the application UID of the | |
725 | * channel. This can be different from the user UID requesting the | |
726 | * channel creation and used for the rights on the stream file | |
727 | * because the application can be in the tracing for instance. | |
728 | */ | |
729 | uint32_t ust_app_uid; | |
491d1539 | 730 | int64_t blocking_timeout; |
3d071855 | 731 | char root_shm_path[PATH_MAX]; |
d7ba1388 | 732 | char shm_path[PATH_MAX]; |
ffe60014 DG |
733 | } LTTNG_PACKED ask_channel; |
734 | struct { | |
d88aee68 | 735 | uint64_t key; |
ffe60014 DG |
736 | } LTTNG_PACKED get_channel; |
737 | struct { | |
d88aee68 | 738 | uint64_t key; |
ffe60014 | 739 | } LTTNG_PACKED destroy_channel; |
d88aee68 DG |
740 | struct { |
741 | uint64_t key; /* Metadata channel key. */ | |
742 | uint64_t target_offset; /* Offset in the consumer */ | |
743 | uint64_t len; /* Length of metadata to be received. */ | |
93ec662e | 744 | uint64_t version; /* Version of the metadata. */ |
d88aee68 DG |
745 | } LTTNG_PACKED push_metadata; |
746 | struct { | |
747 | uint64_t key; /* Metadata channel key. */ | |
748 | } LTTNG_PACKED close_metadata; | |
749 | struct { | |
750 | uint64_t key; /* Metadata channel key. */ | |
751 | } LTTNG_PACKED setup_metadata; | |
7972aab2 DG |
752 | struct { |
753 | uint64_t key; /* Channel key. */ | |
754 | } LTTNG_PACKED flush_channel; | |
0dd01979 MD |
755 | struct { |
756 | uint64_t key; /* Channel key. */ | |
757 | } LTTNG_PACKED clear_quiescent_channel; | |
6dc3064a DG |
758 | struct { |
759 | char pathname[PATH_MAX]; | |
760 | /* Indicate if the snapshot goes on the relayd or locally. */ | |
761 | uint32_t use_relayd; | |
762 | uint32_t metadata; /* This a metadata snapshot. */ | |
763 | uint64_t relayd_id; /* Relayd id if apply. */ | |
764 | uint64_t key; | |
d07ceecd | 765 | uint64_t nb_packets_per_stream; |
6dc3064a | 766 | } LTTNG_PACKED snapshot_channel; |
a4baae1b JD |
767 | struct { |
768 | uint64_t channel_key; | |
769 | uint64_t net_seq_idx; | |
770 | } LTTNG_PACKED sent_streams; | |
fb83fe64 JD |
771 | struct { |
772 | uint64_t session_id; | |
773 | uint64_t channel_key; | |
774 | } LTTNG_PACKED discarded_events; | |
775 | struct { | |
776 | uint64_t session_id; | |
777 | uint64_t channel_key; | |
778 | } LTTNG_PACKED lost_packets; | |
93ec662e JD |
779 | struct { |
780 | uint64_t session_id; | |
eded6438 | 781 | } LTTNG_PACKED regenerate_metadata; |
b99a8d42 | 782 | struct { |
b99a8d42 JD |
783 | uint32_t metadata; /* This is a metadata channel. */ |
784 | uint64_t relayd_id; /* Relayd id if apply. */ | |
785 | uint64_t key; | |
b99a8d42 | 786 | } LTTNG_PACKED rotate_channel; |
92816cc3 JG |
787 | struct { |
788 | uint64_t session_id; | |
789 | uint64_t chunk_id; | |
790 | } LTTNG_PACKED check_rotation_pending_local; | |
d88744a4 JD |
791 | struct { |
792 | uint64_t relayd_id; | |
793 | uint64_t session_id; | |
794 | uint64_t chunk_id; | |
92816cc3 | 795 | } LTTNG_PACKED check_rotation_pending_relay; |
a1ae2ea5 | 796 | struct { |
d2956687 JG |
797 | /* |
798 | * Relayd id, if applicable (remote). | |
799 | * | |
800 | * A directory file descriptor referring to the chunk's | |
801 | * output folder is transmitted if the chunk is local | |
802 | * (relayd_id unset). | |
803 | * | |
804 | * `override_name` is left NULL (all-zeroes) if the | |
913a542b | 805 | * chunk's name is not overridden. |
d2956687 | 806 | */ |
0a30bf9b | 807 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
d2956687 JG |
808 | char override_name[LTTNG_NAME_MAX]; |
809 | uint64_t session_id; | |
810 | uint64_t chunk_id; | |
811 | uint64_t creation_timestamp; | |
e5add6d0 | 812 | LTTNG_OPTIONAL_COMM(struct { |
d2956687 JG |
813 | uint32_t uid; |
814 | uint32_t gid; | |
e5add6d0 | 815 | } LTTNG_PACKED ) LTTNG_PACKED credentials; |
d2956687 JG |
816 | } LTTNG_PACKED create_trace_chunk; |
817 | struct { | |
0a30bf9b | 818 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
d2956687 JG |
819 | uint64_t session_id; |
820 | uint64_t chunk_id; | |
821 | uint64_t close_timestamp; | |
bbc4768c JG |
822 | /* enum lttng_trace_chunk_command_type */ |
823 | LTTNG_OPTIONAL_COMM(uint32_t) LTTNG_PACKED close_command; | |
d2956687 JG |
824 | } LTTNG_PACKED close_trace_chunk; |
825 | struct { | |
0a30bf9b | 826 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
a1ae2ea5 | 827 | uint64_t session_id; |
d2956687 JG |
828 | uint64_t chunk_id; |
829 | } LTTNG_PACKED trace_chunk_exists; | |
830 | struct { | |
328c2fe7 | 831 | uint8_t sessiond_uuid[LTTNG_UUID_LEN]; |
d2956687 | 832 | } LTTNG_PACKED init; |
b01b201a MD |
833 | struct { |
834 | uint64_t key; | |
835 | } LTTNG_PACKED clear_channel; | |
04ed9e10 JG |
836 | struct { |
837 | uint64_t key; | |
838 | } LTTNG_PACKED open_channel_packets; | |
3bd1e081 | 839 | } u; |
fc5e05b7 | 840 | } LTTNG_PACKED; |
6e3805e2 | 841 | |
e9404c27 JG |
842 | /* |
843 | * Channel monitoring message returned to the session daemon on every | |
844 | * monitor timer expiration. | |
845 | */ | |
846 | struct lttcomm_consumer_channel_monitor_msg { | |
847 | /* Key of the sampled channel. */ | |
848 | uint64_t key; | |
319dcddc JG |
849 | /* Id of the sampled channel's session. */ |
850 | uint64_t session_id; | |
e9404c27 JG |
851 | /* |
852 | * Lowest and highest usage (bytes) at the moment the sample was taken. | |
853 | */ | |
854 | uint64_t lowest, highest; | |
e8360425 JD |
855 | /* |
856 | * Sum of all the consumed positions for a channel. | |
857 | */ | |
319dcddc | 858 | uint64_t consumed_since_last_sample; |
e9404c27 JG |
859 | } LTTNG_PACKED; |
860 | ||
f50f23d9 DG |
861 | /* |
862 | * Status message returned to the sessiond after a received command. | |
863 | */ | |
864 | struct lttcomm_consumer_status_msg { | |
0c759fc9 | 865 | enum lttcomm_return_code ret_code; |
fc5e05b7 | 866 | } LTTNG_PACKED; |
f50f23d9 | 867 | |
ffe60014 | 868 | struct lttcomm_consumer_status_channel { |
0c759fc9 | 869 | enum lttcomm_return_code ret_code; |
d88aee68 | 870 | uint64_t key; |
ffe60014 DG |
871 | unsigned int stream_count; |
872 | } LTTNG_PACKED; | |
873 | ||
ecd1a12f MD |
874 | struct lttcomm_consumer_close_trace_chunk_reply { |
875 | enum lttcomm_return_code ret_code; | |
876 | uint32_t path_length; | |
877 | char path[]; | |
878 | }; | |
879 | ||
51791532 JG |
880 | #ifdef HAVE_LIBLTTNG_UST_CTL |
881 | ||
9df8df5e | 882 | #include <lttng/ust-abi.h> |
6e3805e2 | 883 | |
3817e7df DG |
884 | /* |
885 | * Data structure for the commands sent from sessiond to UST. | |
886 | */ | |
887 | struct lttcomm_ust_msg { | |
3817e7df DG |
888 | uint32_t handle; |
889 | uint32_t cmd; | |
890 | union { | |
fc4b93fa MD |
891 | struct lttng_ust_abi_channel channel; |
892 | struct lttng_ust_abi_stream stream; | |
893 | struct lttng_ust_abi_event event; | |
894 | struct lttng_ust_abi_context context; | |
895 | struct lttng_ust_abi_tracer_version version; | |
3817e7df | 896 | } u; |
fc5e05b7 | 897 | } LTTNG_PACKED; |
3817e7df DG |
898 | |
899 | /* | |
900 | * Data structure for the response from UST to the session daemon. | |
901 | * cmd_type is sent back in the reply for validation. | |
902 | */ | |
903 | struct lttcomm_ust_reply { | |
904 | uint32_t handle; | |
905 | uint32_t cmd; | |
906 | uint32_t ret_code; /* enum lttcomm_return_code */ | |
907 | uint32_t ret_val; /* return value */ | |
908 | union { | |
2b0bf864 DG |
909 | struct { |
910 | uint64_t memory_map_size; | |
fc5e05b7 | 911 | } LTTNG_PACKED channel; |
2b0bf864 DG |
912 | struct { |
913 | uint64_t memory_map_size; | |
fc5e05b7 | 914 | } LTTNG_PACKED stream; |
fc4b93fa | 915 | struct lttng_ust_abi_tracer_version version; |
3817e7df | 916 | } u; |
fc5e05b7 | 917 | } LTTNG_PACKED; |
3817e7df | 918 | |
74d0b642 | 919 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 920 | |
ca806b0b | 921 | const char *lttcomm_get_readable_code(enum lttcomm_return_code code); |
fac6795d | 922 | |
ca806b0b | 923 | int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr, |
6364a07a | 924 | const char *ip, unsigned int port); |
ca806b0b | 925 | int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr, |
6364a07a DG |
926 | const char *ip, unsigned int port); |
927 | ||
ca806b0b | 928 | struct lttcomm_sock *lttcomm_alloc_sock(enum lttcomm_sock_proto proto); |
4222116f JR |
929 | int lttcomm_populate_sock_from_open_socket(struct lttcomm_sock *sock, |
930 | int fd, | |
931 | enum lttcomm_sock_proto protocol); | |
ca806b0b SM |
932 | int lttcomm_create_sock(struct lttcomm_sock *sock); |
933 | struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri); | |
934 | void lttcomm_destroy_sock(struct lttcomm_sock *sock); | |
935 | struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src); | |
936 | void lttcomm_copy_sock(struct lttcomm_sock *dst, | |
de5e9086 | 937 | struct lttcomm_sock *src); |
6364a07a | 938 | |
6151a90f | 939 | /* Relayd socket object. */ |
ca806b0b | 940 | struct lttcomm_relayd_sock *lttcomm_alloc_relayd_sock( |
6151a90f JD |
941 | struct lttng_uri *uri, uint32_t major, uint32_t minor); |
942 | ||
ca806b0b SM |
943 | int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec); |
944 | int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec); | |
783a3b9a | 945 | |
ca806b0b | 946 | int lttcomm_sock_get_port(const struct lttcomm_sock *sock, |
2288467f JG |
947 | uint16_t *port); |
948 | /* | |
949 | * Set a port to an lttcomm_sock. This will have no effect is the socket is | |
950 | * already bound. | |
951 | */ | |
ca806b0b | 952 | int lttcomm_sock_set_port(struct lttcomm_sock *sock, uint16_t port); |
2288467f | 953 | |
cd9adb8b | 954 | void lttcomm_init(); |
554831e7 | 955 | /* Get network timeout, in milliseconds */ |
cd9adb8b | 956 | unsigned long lttcomm_get_network_timeout(); |
554831e7 | 957 | |
773168b7 | 958 | #endif /* _LTTNG_SESSIOND_COMM_H */ |