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 | ||
28f23191 JG |
17 | #include "inet.hpp" |
18 | #include "inet6.hpp" | |
19 | ||
c9e313bc | 20 | #include <common/compat/socket.hpp> |
40ebe219 | 21 | #include <common/compiler.hpp> |
c9e313bc | 22 | #include <common/defaults.hpp> |
c9e313bc SM |
23 | #include <common/macros.hpp> |
24 | #include <common/optional.hpp> | |
28f23191 JG |
25 | #include <common/unix.hpp> |
26 | #include <common/uri.hpp> | |
27 | #include <common/uuid.hpp> | |
28 | ||
29 | #include <lttng/channel-internal.hpp> | |
30 | #include <lttng/lttng.h> | |
31 | #include <lttng/rotate-internal.hpp> | |
32 | #include <lttng/save-internal.hpp> | |
33 | #include <lttng/snapshot-internal.hpp> | |
34 | #include <lttng/trigger/trigger-internal.hpp> | |
5e16da05 | 35 | |
6364a07a | 36 | #include <arpa/inet.h> |
28f23191 | 37 | #include <limits.h> |
6364a07a | 38 | #include <netinet/in.h> |
4222116f | 39 | #include <stdint.h> |
6364a07a DG |
40 | #include <sys/un.h> |
41 | ||
fac6795d | 42 | /* Queue size of listen(2) */ |
f158a754 | 43 | #define LTTNG_SESSIOND_COMM_MAX_LISTEN 64 |
fac6795d | 44 | |
990570ed | 45 | /* Maximum number of FDs that can be sent over a Unix socket */ |
0b5a4de9 JG |
46 | #if defined(__linux__) |
47 | /* Based on the kernel's SCM_MAX_FD which is 253 since 2.6.38 (255 before) */ | |
28f23191 | 48 | #define LTTCOMM_MAX_SEND_FDS 253 |
0b5a4de9 | 49 | #else |
28f23191 | 50 | #define LTTCOMM_MAX_SEND_FDS 16 |
0b5a4de9 | 51 | #endif |
990570ed | 52 | |
6abb15de | 53 | enum lttcomm_sessiond_command { |
37a5ef39 JG |
54 | LTTCOMM_SESSIOND_COMMAND_MIN, |
55 | LTTCOMM_SESSIOND_COMMAND_ADD_CONTEXT, | |
56 | LTTCOMM_SESSIOND_COMMAND_DISABLE_CHANNEL, | |
57 | LTTCOMM_SESSIOND_COMMAND_DISABLE_EVENT, | |
58 | LTTCOMM_SESSIOND_COMMAND_LIST_SYSCALLS, | |
59 | LTTCOMM_SESSIOND_COMMAND_ENABLE_CHANNEL, | |
60 | LTTCOMM_SESSIOND_COMMAND_ENABLE_EVENT, | |
61 | LTTCOMM_SESSIOND_COMMAND_DESTROY_SESSION, | |
62 | LTTCOMM_SESSIOND_COMMAND_LIST_CHANNELS, | |
63 | LTTCOMM_SESSIOND_COMMAND_LIST_DOMAINS, | |
64 | LTTCOMM_SESSIOND_COMMAND_LIST_EVENTS, | |
65 | LTTCOMM_SESSIOND_COMMAND_LIST_SESSIONS, | |
66 | LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINTS, | |
67 | LTTCOMM_SESSIOND_COMMAND_REGISTER_CONSUMER, | |
68 | LTTCOMM_SESSIOND_COMMAND_START_TRACE, | |
69 | LTTCOMM_SESSIOND_COMMAND_STOP_TRACE, | |
70 | LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINT_FIELDS, | |
71 | LTTCOMM_SESSIOND_COMMAND_DISABLE_CONSUMER, | |
72 | LTTCOMM_SESSIOND_COMMAND_ENABLE_CONSUMER, | |
73 | LTTCOMM_SESSIOND_COMMAND_SET_CONSUMER_URI, | |
74 | LTTCOMM_SESSIOND_COMMAND_DATA_PENDING, | |
75 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_ADD_OUTPUT, | |
76 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_DEL_OUTPUT, | |
77 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_LIST_OUTPUT, | |
78 | LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_RECORD, | |
79 | LTTCOMM_SESSIOND_COMMAND_SAVE_SESSION, | |
80 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE, | |
81 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE, | |
82 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_POLICY, | |
83 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_SET_POLICY, | |
84 | LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET, | |
85 | LTTCOMM_SESSIOND_COMMAND_SET_SESSION_SHM_PATH, | |
86 | LTTCOMM_SESSIOND_COMMAND_REGENERATE_METADATA, | |
87 | LTTCOMM_SESSIOND_COMMAND_REGENERATE_STATEDUMP, | |
88 | LTTCOMM_SESSIOND_COMMAND_REGISTER_TRIGGER, | |
89 | LTTCOMM_SESSIOND_COMMAND_UNREGISTER_TRIGGER, | |
90 | LTTCOMM_SESSIOND_COMMAND_ROTATE_SESSION, | |
91 | LTTCOMM_SESSIOND_COMMAND_ROTATION_GET_INFO, | |
92 | LTTCOMM_SESSIOND_COMMAND_ROTATION_SET_SCHEDULE, | |
93 | LTTCOMM_SESSIOND_COMMAND_SESSION_LIST_ROTATION_SCHEDULES, | |
94 | LTTCOMM_SESSIOND_COMMAND_CREATE_SESSION_EXT, | |
95 | LTTCOMM_SESSIOND_COMMAND_CLEAR_SESSION, | |
96 | LTTCOMM_SESSIOND_COMMAND_LIST_TRIGGERS, | |
97 | LTTCOMM_SESSIOND_COMMAND_EXECUTE_ERROR_QUERY, | |
6c1db447 | 98 | LTTCOMM_SESSIOND_COMMAND_MAX, |
7c9534d6 JD |
99 | }; |
100 | ||
28f23191 | 101 | static inline bool lttcomm_sessiond_command_is_valid(enum lttcomm_sessiond_command cmd) |
6c1db447 JG |
102 | { |
103 | return cmd > LTTCOMM_SESSIOND_COMMAND_MIN && cmd < LTTCOMM_SESSIOND_COMMAND_MAX; | |
104 | } | |
105 | ||
28f23191 | 106 | static inline const char *lttcomm_sessiond_command_str(enum lttcomm_sessiond_command cmd) |
19f912db FD |
107 | { |
108 | switch (cmd) { | |
37a5ef39 JG |
109 | case LTTCOMM_SESSIOND_COMMAND_ADD_CONTEXT: |
110 | return "ADD_CONTEXT"; | |
111 | case LTTCOMM_SESSIOND_COMMAND_DISABLE_CHANNEL: | |
112 | return "DISABLE_CHANNEL"; | |
113 | case LTTCOMM_SESSIOND_COMMAND_DISABLE_EVENT: | |
114 | return "DISABLE_EVENT"; | |
115 | case LTTCOMM_SESSIOND_COMMAND_LIST_SYSCALLS: | |
116 | return "LIST_SYSCALLS"; | |
117 | case LTTCOMM_SESSIOND_COMMAND_ENABLE_CHANNEL: | |
118 | return "ENABLE_CHANNEL"; | |
119 | case LTTCOMM_SESSIOND_COMMAND_ENABLE_EVENT: | |
120 | return "ENABLE_EVENT"; | |
121 | case LTTCOMM_SESSIOND_COMMAND_DESTROY_SESSION: | |
122 | return "DESTROY_SESSION"; | |
123 | case LTTCOMM_SESSIOND_COMMAND_LIST_CHANNELS: | |
124 | return "LIST_CHANNELS"; | |
125 | case LTTCOMM_SESSIOND_COMMAND_LIST_DOMAINS: | |
126 | return "LIST_DOMAINS"; | |
127 | case LTTCOMM_SESSIOND_COMMAND_LIST_EVENTS: | |
128 | return "LIST_EVENTS"; | |
129 | case LTTCOMM_SESSIOND_COMMAND_LIST_SESSIONS: | |
130 | return "LIST_SESSIONS"; | |
131 | case LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINTS: | |
132 | return "LIST_TRACEPOINTS"; | |
133 | case LTTCOMM_SESSIOND_COMMAND_REGISTER_CONSUMER: | |
134 | return "REGISTER_CONSUMER"; | |
135 | case LTTCOMM_SESSIOND_COMMAND_START_TRACE: | |
136 | return "START_TRACE"; | |
137 | case LTTCOMM_SESSIOND_COMMAND_STOP_TRACE: | |
138 | return "STOP_TRACE"; | |
139 | case LTTCOMM_SESSIOND_COMMAND_LIST_TRACEPOINT_FIELDS: | |
140 | return "LIST_TRACEPOINT_FIELDS"; | |
141 | case LTTCOMM_SESSIOND_COMMAND_DISABLE_CONSUMER: | |
142 | return "DISABLE_CONSUMER"; | |
143 | case LTTCOMM_SESSIOND_COMMAND_ENABLE_CONSUMER: | |
144 | return "ENABLE_CONSUMER"; | |
145 | case LTTCOMM_SESSIOND_COMMAND_SET_CONSUMER_URI: | |
146 | return "SET_CONSUMER_URI"; | |
147 | case LTTCOMM_SESSIOND_COMMAND_DATA_PENDING: | |
148 | return "DATA_PENDING"; | |
149 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_ADD_OUTPUT: | |
150 | return "SNAPSHOT_ADD_OUTPUT"; | |
151 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_DEL_OUTPUT: | |
152 | return "SNAPSHOT_DEL_OUTPUT"; | |
153 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_LIST_OUTPUT: | |
154 | return "SNAPSHOT_LIST_OUTPUT"; | |
155 | case LTTCOMM_SESSIOND_COMMAND_SNAPSHOT_RECORD: | |
156 | return "SNAPSHOT_RECORD"; | |
157 | case LTTCOMM_SESSIOND_COMMAND_SAVE_SESSION: | |
158 | return "SAVE_SESSION"; | |
159 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE: | |
160 | return "PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE"; | |
161 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE: | |
162 | return "PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE"; | |
163 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_POLICY: | |
164 | return "PROCESS_ATTR_TRACKER_GET_POLICY"; | |
165 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_SET_POLICY: | |
166 | return "PROCESS_ATTR_TRACKER_SET_POLICY"; | |
167 | case LTTCOMM_SESSIOND_COMMAND_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET: | |
168 | return "PROCESS_ATTR_TRACKER_GET_INCLUSION_SET"; | |
169 | case LTTCOMM_SESSIOND_COMMAND_SET_SESSION_SHM_PATH: | |
170 | return "SET_SESSION_SHM_PATH"; | |
171 | case LTTCOMM_SESSIOND_COMMAND_REGENERATE_METADATA: | |
172 | return "REGENERATE_METADATA"; | |
173 | case LTTCOMM_SESSIOND_COMMAND_REGENERATE_STATEDUMP: | |
174 | return "REGENERATE_STATEDUMP"; | |
175 | case LTTCOMM_SESSIOND_COMMAND_REGISTER_TRIGGER: | |
176 | return "REGISTER_TRIGGER"; | |
177 | case LTTCOMM_SESSIOND_COMMAND_UNREGISTER_TRIGGER: | |
178 | return "UNREGISTER_TRIGGER"; | |
179 | case LTTCOMM_SESSIOND_COMMAND_ROTATE_SESSION: | |
180 | return "ROTATE_SESSION"; | |
181 | case LTTCOMM_SESSIOND_COMMAND_ROTATION_GET_INFO: | |
182 | return "ROTATION_GET_INFO"; | |
183 | case LTTCOMM_SESSIOND_COMMAND_ROTATION_SET_SCHEDULE: | |
184 | return "ROTATION_SET_SCHEDULE"; | |
185 | case LTTCOMM_SESSIOND_COMMAND_SESSION_LIST_ROTATION_SCHEDULES: | |
186 | return "SESSION_LIST_ROTATION_SCHEDULES"; | |
187 | case LTTCOMM_SESSIOND_COMMAND_CREATE_SESSION_EXT: | |
188 | return "CREATE_SESSION_EXT"; | |
189 | case LTTCOMM_SESSIOND_COMMAND_CLEAR_SESSION: | |
190 | return "CLEAR_SESSION"; | |
191 | case LTTCOMM_SESSIOND_COMMAND_LIST_TRIGGERS: | |
192 | return "LIST_TRIGGERS"; | |
193 | case LTTCOMM_SESSIOND_COMMAND_EXECUTE_ERROR_QUERY: | |
194 | return "EXECUTE_ERROR_QUERY"; | |
19f912db FD |
195 | default: |
196 | abort(); | |
197 | } | |
198 | } | |
199 | ||
7c9534d6 | 200 | enum lttcomm_relayd_command { |
28f23191 JG |
201 | RELAYD_ADD_STREAM = 1, |
202 | RELAYD_CREATE_SESSION = 2, | |
203 | RELAYD_START_DATA = 3, | |
204 | RELAYD_UPDATE_SYNC_INFO = 4, | |
205 | RELAYD_VERSION = 5, | |
206 | RELAYD_SEND_METADATA = 6, | |
207 | RELAYD_CLOSE_STREAM = 7, | |
208 | RELAYD_DATA_PENDING = 8, | |
209 | RELAYD_QUIESCENT_CONTROL = 9, | |
210 | RELAYD_BEGIN_DATA_PENDING = 10, | |
211 | RELAYD_END_DATA_PENDING = 11, | |
212 | RELAYD_ADD_INDEX = 12, | |
213 | RELAYD_SEND_INDEX = 13, | |
214 | RELAYD_CLOSE_INDEX = 14, | |
a4baae1b | 215 | /* Live-reading commands (2.4+). */ |
28f23191 | 216 | RELAYD_LIST_SESSIONS = 15, |
a4baae1b | 217 | /* All streams of the channel have been sent to the relayd (2.4+). */ |
28f23191 | 218 | RELAYD_STREAMS_SENT = 16, |
93ec662e | 219 | /* Ask the relay to reset the metadata trace file (2.8+) */ |
28f23191 | 220 | RELAYD_RESET_METADATA = 17, |
c35f9726 | 221 | /* Ask the relay to rotate a set of stream files (2.11+) */ |
28f23191 | 222 | RELAYD_ROTATE_STREAMS = 18, |
e5add6d0 | 223 | /* Ask the relay to create a trace chunk (2.11+) */ |
28f23191 | 224 | RELAYD_CREATE_TRACE_CHUNK = 19, |
bbc4768c | 225 | /* Ask the relay to close a trace chunk (2.11+) */ |
28f23191 | 226 | RELAYD_CLOSE_TRACE_CHUNK = 20, |
c35f9726 | 227 | /* Ask the relay whether a trace chunk exists (2.11+) */ |
28f23191 | 228 | RELAYD_TRACE_CHUNK_EXISTS = 21, |
8614e600 | 229 | /* Get the current configuration of a relayd peer (2.12+) */ |
28f23191 | 230 | RELAYD_GET_CONFIGURATION = 22, |
3fe73a46 MD |
231 | |
232 | /* Feature branch specific commands start at 10000. */ | |
fac6795d DG |
233 | }; |
234 | ||
28f23191 | 235 | static inline const char *lttcomm_relayd_command_str(lttcomm_relayd_command cmd) |
00e71031 FD |
236 | { |
237 | switch (cmd) { | |
238 | case RELAYD_ADD_STREAM: | |
239 | return "RELAYD_ADD_STREAM"; | |
240 | case RELAYD_CREATE_SESSION: | |
241 | return "RELAYD_CREATE_SESSION"; | |
242 | case RELAYD_START_DATA: | |
243 | return "RELAYD_START_DATA"; | |
244 | case RELAYD_UPDATE_SYNC_INFO: | |
245 | return "RELAYD_UPDATE_SYNC_INFO"; | |
246 | case RELAYD_VERSION: | |
247 | return "RELAYD_VERSION"; | |
248 | case RELAYD_SEND_METADATA: | |
249 | return "RELAYD_SEND_METADATA"; | |
250 | case RELAYD_CLOSE_STREAM: | |
251 | return "RELAYD_CLOSE_STREAM"; | |
252 | case RELAYD_DATA_PENDING: | |
253 | return "RELAYD_DATA_PENDING"; | |
254 | case RELAYD_QUIESCENT_CONTROL: | |
255 | return "RELAYD_QUIESCENT_CONTROL"; | |
256 | case RELAYD_BEGIN_DATA_PENDING: | |
257 | return "RELAYD_BEGIN_DATA_PENDING"; | |
258 | case RELAYD_END_DATA_PENDING: | |
259 | return "RELAYD_END_DATA_PENDING"; | |
260 | case RELAYD_ADD_INDEX: | |
261 | return "RELAYD_ADD_INDEX"; | |
262 | case RELAYD_SEND_INDEX: | |
263 | return "RELAYD_SEND_INDEX"; | |
264 | case RELAYD_CLOSE_INDEX: | |
265 | return "RELAYD_CLOSE_INDEX"; | |
266 | case RELAYD_LIST_SESSIONS: | |
267 | return "RELAYD_LIST_SESSIONS"; | |
268 | case RELAYD_STREAMS_SENT: | |
269 | return "RELAYD_STREAMS_SENT"; | |
270 | case RELAYD_RESET_METADATA: | |
271 | return "RELAYD_RESET_METADATA"; | |
272 | case RELAYD_ROTATE_STREAMS: | |
273 | return "RELAYD_ROTATE_STREAMS"; | |
274 | case RELAYD_CREATE_TRACE_CHUNK: | |
275 | return "RELAYD_CREATE_TRACE_CHUNK"; | |
276 | case RELAYD_CLOSE_TRACE_CHUNK: | |
277 | return "RELAYD_CLOSE_TRACE_CHUNK"; | |
278 | case RELAYD_TRACE_CHUNK_EXISTS: | |
279 | return "RELAYD_TRACE_CHUNK_EXISTS"; | |
280 | case RELAYD_GET_CONFIGURATION: | |
281 | return "RELAYD_GET_CONFIGURATION"; | |
282 | default: | |
283 | abort(); | |
284 | } | |
285 | } | |
286 | ||
fac6795d DG |
287 | /* |
288 | * lttcomm error code. | |
289 | */ | |
290 | enum lttcomm_return_code { | |
28f23191 | 291 | LTTCOMM_CONSUMERD_SUCCESS = 0, /* Everything went fine. */ |
d2956687 JG |
292 | /* |
293 | * Some code paths use -1 to express an error, others | |
294 | * negate this consumer return code. Starting codes at | |
295 | * 100 ensures there is no mix-up between this error value | |
296 | * and legitimate status codes. | |
297 | */ | |
298 | LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 100, /* Command socket ready */ | |
28f23191 JG |
299 | LTTCOMM_CONSUMERD_SUCCESS_RECV_FD, /* Success on receiving fds */ |
300 | LTTCOMM_CONSUMERD_ERROR_RECV_FD, /* Error on receiving fds */ | |
301 | LTTCOMM_CONSUMERD_ERROR_RECV_CMD, /* Error on receiving command */ | |
302 | LTTCOMM_CONSUMERD_POLL_ERROR, /* Error in polling thread */ | |
303 | LTTCOMM_CONSUMERD_POLL_NVAL, /* Poll on closed fd */ | |
304 | LTTCOMM_CONSUMERD_POLL_HUP, /* All fds have hungup */ | |
305 | LTTCOMM_CONSUMERD_EXIT_SUCCESS, /* Consumerd exiting normally */ | |
306 | LTTCOMM_CONSUMERD_EXIT_FAILURE, /* Consumerd exiting on error */ | |
307 | LTTCOMM_CONSUMERD_OUTFD_ERROR, /* Error opening the tracefile */ | |
308 | LTTCOMM_CONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */ | |
309 | LTTCOMM_CONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */ | |
310 | LTTCOMM_CONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */ | |
311 | LTTCOMM_CONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */ | |
312 | LTTCOMM_CONSUMERD_ENOMEM, /* Consumer is out of memory */ | |
313 | LTTCOMM_CONSUMERD_ERROR_METADATA, /* Error with metadata. */ | |
314 | LTTCOMM_CONSUMERD_FATAL, /* Fatal error. */ | |
315 | LTTCOMM_CONSUMERD_RELAYD_FAIL, /* Error on remote relayd */ | |
316 | LTTCOMM_CONSUMERD_CHANNEL_FAIL, /* Channel creation failed. */ | |
317 | LTTCOMM_CONSUMERD_CHAN_NOT_FOUND, /* Channel not found. */ | |
318 | LTTCOMM_CONSUMERD_ALREADY_SET, /* Resource already set. */ | |
319 | LTTCOMM_CONSUMERD_ROTATION_FAIL, /* Rotation has failed. */ | |
320 | LTTCOMM_CONSUMERD_SNAPSHOT_FAILED, /* snapshot has failed. */ | |
321 | LTTCOMM_CONSUMERD_CREATE_TRACE_CHUNK_FAILED, /* Trace chunk creation failed. */ | |
64efa44e | 322 | LTTCOMM_CONSUMERD_CLOSE_TRACE_CHUNK_FAILED, /* Trace chunk close failed. */ |
28f23191 | 323 | LTTCOMM_CONSUMERD_INVALID_PARAMETERS, /* Invalid parameters. */ |
d2956687 | 324 | LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL, /* Trace chunk exists on consumer daemon. */ |
28f23191 JG |
325 | LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE, /* Trace chunk exists on relay daemon. */ |
326 | LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK, /* Unknown trace chunk. */ | |
327 | LTTCOMM_CONSUMERD_RELAYD_CLEAR_DISALLOWED, /* Relayd does not accept clear command. */ | |
328 | LTTCOMM_CONSUMERD_UNKNOWN_ERROR, /* Unknown error. */ | |
80e327fa | 329 | |
20fe2104 | 330 | /* MUST be last element */ |
28f23191 | 331 | LTTCOMM_NR, /* Last element */ |
fac6795d DG |
332 | }; |
333 | ||
de5e9086 DG |
334 | /* lttng socket protocol. */ |
335 | enum lttcomm_sock_proto { | |
336 | LTTCOMM_SOCK_UDP, | |
337 | LTTCOMM_SOCK_TCP, | |
338 | }; | |
339 | ||
340 | /* | |
341 | * Index in the net_families array below. Please keep in sync! | |
342 | */ | |
343 | enum lttcomm_sock_domain { | |
28f23191 JG |
344 | LTTCOMM_INET = 0, |
345 | LTTCOMM_INET6 = 1, | |
de5e9086 DG |
346 | }; |
347 | ||
331744e3 JD |
348 | enum lttcomm_metadata_command { |
349 | LTTCOMM_METADATA_REQUEST = 1, | |
350 | }; | |
351 | ||
352 | /* | |
353 | * Commands sent from the consumerd to the sessiond to request if new metadata | |
354 | * is available. This message is used to find the per UID _or_ per PID registry | |
355 | * for the channel key. For per UID lookup, the triplet | |
356 | * bits_per_long/uid/session_id is used. On lookup failure, we search for the | |
357 | * per PID registry indexed by session id ignoring the other values. | |
358 | */ | |
359 | struct lttcomm_metadata_request_msg { | |
1950109e JD |
360 | uint64_t session_id; /* Tracing session id */ |
361 | uint64_t session_id_per_pid; /* Tracing session id for per-pid */ | |
331744e3 JD |
362 | uint32_t bits_per_long; /* Consumer ABI */ |
363 | uint32_t uid; | |
364 | uint64_t key; /* Metadata channel key. */ | |
365 | } LTTNG_PACKED; | |
366 | ||
de5e9086 DG |
367 | struct lttcomm_sockaddr { |
368 | enum lttcomm_sock_domain type; | |
369 | union { | |
370 | struct sockaddr_in sin; | |
371 | struct sockaddr_in6 sin6; | |
372 | } addr; | |
4222116f | 373 | }; |
de5e9086 DG |
374 | |
375 | struct lttcomm_sock { | |
d88aee68 | 376 | int32_t fd; |
de5e9086 DG |
377 | enum lttcomm_sock_proto proto; |
378 | struct lttcomm_sockaddr sockaddr; | |
379 | const struct lttcomm_proto_ops *ops; | |
4222116f | 380 | }; |
de5e9086 | 381 | |
6151a90f JD |
382 | /* |
383 | * Relayd sock. Adds the protocol version to use for the communications with | |
384 | * the relayd. | |
385 | */ | |
386 | struct lttcomm_relayd_sock { | |
387 | struct lttcomm_sock sock; | |
388 | uint32_t major; | |
389 | uint32_t minor; | |
4222116f | 390 | }; |
6151a90f | 391 | |
de5e9086 DG |
392 | struct lttcomm_net_family { |
393 | int family; | |
28f23191 | 394 | int (*create)(struct lttcomm_sock *sock, int type, int proto); |
de5e9086 DG |
395 | }; |
396 | ||
397 | struct lttcomm_proto_ops { | |
28f23191 JG |
398 | int (*bind)(struct lttcomm_sock *sock); |
399 | int (*close)(struct lttcomm_sock *sock); | |
400 | int (*connect)(struct lttcomm_sock *sock); | |
401 | struct lttcomm_sock *(*accept)(struct lttcomm_sock *sock); | |
402 | int (*listen)(struct lttcomm_sock *sock, int backlog); | |
403 | ssize_t (*recvmsg)(struct lttcomm_sock *sock, void *buf, size_t len, int flags); | |
404 | ssize_t (*sendmsg)(struct lttcomm_sock *sock, const void *buf, size_t len, int flags); | |
de5e9086 DG |
405 | }; |
406 | ||
159b042f JG |
407 | struct process_attr_integral_value_comm { |
408 | union { | |
409 | int64_t _signed; | |
410 | uint64_t _unsigned; | |
411 | } u; | |
412 | } LTTNG_PACKED; | |
413 | ||
fac6795d | 414 | /* |
9bda164d | 415 | * Data structure received from lttng client to session daemon. |
fac6795d DG |
416 | */ |
417 | struct lttcomm_session_msg { | |
28f23191 | 418 | uint32_t cmd_type; /* enum lttcomm_sessiond_command */ |
42abccdb | 419 | struct lttng_session session; |
9f19cc17 | 420 | struct lttng_domain domain; |
fac6795d | 421 | union { |
f3ed775e | 422 | /* Event data */ |
fac6795d | 423 | struct { |
db8870ed | 424 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
8ddd72ef | 425 | uint32_t length; |
fc5e05b7 | 426 | } LTTNG_PACKED enable; |
6e911cad MD |
427 | struct { |
428 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; | |
8ddd72ef | 429 | uint32_t length; |
6e911cad | 430 | } LTTNG_PACKED disable; |
f3ed775e DG |
431 | /* Create channel */ |
432 | struct { | |
999af9c1 | 433 | uint32_t length; |
fc5e05b7 | 434 | } LTTNG_PACKED channel; |
d65106b1 DG |
435 | /* Context */ |
436 | struct { | |
db8870ed | 437 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
26e1c61f | 438 | uint32_t length; |
fc5e05b7 | 439 | } LTTNG_PACKED context; |
d9800920 DG |
440 | /* Use by register_consumer */ |
441 | struct { | |
442 | char path[PATH_MAX]; | |
fc5e05b7 | 443 | } LTTNG_PACKED reg; |
9f19cc17 DG |
444 | /* List */ |
445 | struct { | |
db8870ed | 446 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
fc5e05b7 | 447 | } LTTNG_PACKED list; |
d0254c7c | 448 | struct lttng_calibrate calibrate; |
a4b92340 | 449 | /* Used by the set_consumer_url and used by create_session also call */ |
de5e9086 | 450 | struct { |
a4b92340 DG |
451 | /* Number of lttng_uri following */ |
452 | uint32_t size; | |
fc5e05b7 | 453 | } LTTNG_PACKED uri; |
da3c9ec1 | 454 | struct { |
7bd95aee | 455 | struct lttng_snapshot_output output; |
da3c9ec1 DG |
456 | } LTTNG_PACKED snapshot_output; |
457 | struct { | |
458 | uint32_t wait; | |
7bd95aee | 459 | struct lttng_snapshot_output output; |
da3c9ec1 | 460 | } LTTNG_PACKED snapshot_record; |
ecc48a90 JD |
461 | struct { |
462 | uint32_t nb_uri; | |
28f23191 | 463 | unsigned int timer_interval; /* usec */ |
ecc48a90 | 464 | } LTTNG_PACKED session_live; |
00c76cea | 465 | struct { |
7bd95aee | 466 | struct lttng_save_session_attr attr; |
00c76cea | 467 | } LTTNG_PACKED save_session; |
d7ba1388 MD |
468 | struct { |
469 | char shm_path[PATH_MAX]; | |
470 | } LTTNG_PACKED set_shm_path; | |
ccf10263 | 471 | struct { |
159b042f JG |
472 | /* enum lttng_process_attr */ |
473 | int32_t process_attr; | |
474 | /* enum lttng_process_attr_value_type */ | |
475 | int32_t value_type; | |
476 | ||
477 | struct process_attr_integral_value_comm integral_value; | |
55c9e7ca | 478 | /* |
159b042f JG |
479 | * For user/group names, a variable length, |
480 | * zero-terminated, string of length 'name_len' | |
481 | * (including the terminator) follows. | |
482 | * | |
483 | * integral_value should not be used in those cases. | |
55c9e7ca | 484 | */ |
159b042f JG |
485 | uint32_t name_len; |
486 | } LTTNG_PACKED process_attr_tracker_add_remove_include_value; | |
55c9e7ca | 487 | struct { |
159b042f JG |
488 | /* enum lttng_process_attr */ |
489 | int32_t process_attr; | |
490 | } LTTNG_PACKED process_attr_tracker_get_inclusion_set; | |
491 | struct { | |
492 | /* enum lttng_process_attr */ | |
493 | int32_t process_attr; | |
494 | } LTTNG_PACKED process_attr_tracker_get_tracking_policy; | |
495 | struct { | |
496 | /* enum lttng_process_attr */ | |
497 | int32_t process_attr; | |
498 | /* enum lttng_tracking_policy */ | |
499 | int32_t tracking_policy; | |
500 | } LTTNG_PACKED process_attr_tracker_set_tracking_policy; | |
e9404c27 JG |
501 | struct { |
502 | uint32_t length; | |
0efb2ad7 | 503 | uint8_t is_trigger_anonymous; |
e9404c27 | 504 | } LTTNG_PACKED trigger; |
b99a0cb3 JG |
505 | struct { |
506 | uint32_t length; | |
507 | } LTTNG_PACKED error_query; | |
d88744a4 | 508 | struct { |
d68c9a04 JD |
509 | uint64_t rotation_id; |
510 | } LTTNG_PACKED get_rotation_info; | |
259c2674 | 511 | struct { |
66ea93b1 JG |
512 | /* enum lttng_rotation_schedule_type */ |
513 | uint8_t type; | |
514 | /* | |
515 | * If set == 1, set schedule to value, if set == 0, | |
516 | * clear this schedule type. | |
517 | */ | |
518 | uint8_t set; | |
519 | uint64_t value; | |
520 | } LTTNG_PACKED rotation_set_schedule; | |
b178f53e JG |
521 | struct { |
522 | /* | |
523 | * Includes the null-terminator. | |
524 | * Must be an absolute path. | |
525 | * | |
526 | * Size bounded by LTTNG_PATH_MAX. | |
527 | */ | |
528 | uint16_t home_dir_size; | |
529 | uint64_t session_descriptor_size; | |
530 | /* An lttng_session_descriptor follows. */ | |
531 | } LTTNG_PACKED create_session; | |
fac6795d | 532 | } u; |
99608320 JR |
533 | /* Count of fds sent. */ |
534 | uint32_t fd_count; | |
fc5e05b7 | 535 | } LTTNG_PACKED; |
fac6795d | 536 | |
28f23191 JG |
537 | #define LTTNG_FILTER_MAX_LEN 65536 |
538 | #define LTTNG_SESSION_DESCRIPTOR_MAX_LEN 65536 | |
53a80697 MD |
539 | |
540 | /* | |
541 | * Filter bytecode data. The reloc table is located at the end of the | |
542 | * bytecode. It is made of tuples: (uint16_t, var. len. string). It | |
543 | * starts at reloc_table_offset. | |
544 | */ | |
28f23191 | 545 | #define LTTNG_FILTER_PADDING 32 |
2b00d462 | 546 | struct lttng_bytecode { |
28f23191 | 547 | uint32_t len; /* len of data */ |
d93c4f1f | 548 | uint32_t reloc_table_offset; |
f3f0db50 | 549 | uint64_t seqnum; |
b6bbed5f | 550 | char padding[LTTNG_FILTER_PADDING]; |
53a80697 | 551 | char data[0]; |
fc5e05b7 | 552 | } LTTNG_PACKED; |
53a80697 | 553 | |
579640f9 JI |
554 | /* |
555 | * Event exclusion data. At the end of the structure, there will actually | |
556 | * by zero or more names, where the actual number of names is given by | |
557 | * the 'count' item of the structure. | |
558 | */ | |
28f23191 | 559 | #define LTTNG_EVENT_EXCLUSION_PADDING 32 |
579640f9 JI |
560 | struct lttng_event_exclusion { |
561 | uint32_t count; | |
562 | char padding[LTTNG_EVENT_EXCLUSION_PADDING]; | |
40ebe219 | 563 | char names[LTTNG_FLEXIBLE_ARRAY_MEMBER_LENGTH][LTTNG_SYMBOL_NAME_LEN]; |
579640f9 JI |
564 | } LTTNG_PACKED; |
565 | ||
28f23191 | 566 | #define LTTNG_EVENT_EXCLUSION_NAME_AT(_exclusion, _i) ((_exclusion)->names[_i]) |
d7af3565 | 567 | |
999af9c1 JR |
568 | /* |
569 | * Listing command header. | |
570 | */ | |
571 | struct lttcomm_list_command_header { | |
572 | /* Number of elements */ | |
573 | uint32_t count; | |
574 | } LTTNG_PACKED; | |
575 | ||
b4e3ceb9 PP |
576 | /* |
577 | * Event extended info header. This is the structure preceding each | |
578 | * extended info data. | |
579 | */ | |
580 | struct lttcomm_event_extended_header { | |
581 | /* | |
582 | * Size of filter string immediately following this header. | |
583 | * This size includes the terminal null character. | |
584 | */ | |
585 | uint32_t filter_len; | |
795d57ce PP |
586 | |
587 | /* | |
588 | * Number of exclusion names, immediately following the filter | |
589 | * string. Each exclusion name has a fixed length of | |
590 | * LTTNG_SYMBOL_NAME_LEN bytes, including the terminal null | |
591 | * character. | |
592 | */ | |
593 | uint32_t nb_exclusions; | |
56f0bc67 JG |
594 | |
595 | /* | |
596 | * Size of the event's userspace probe location (if applicable). | |
597 | */ | |
598 | uint32_t userspace_probe_location_len; | |
b4e3ceb9 PP |
599 | } LTTNG_PACKED; |
600 | ||
3e3665b8 | 601 | /* |
37a5ef39 | 602 | * Command header of the reply to an LTTCOMM_SESSIOND_COMMAND_DESTROY_SESSION command. |
3e3665b8 JG |
603 | */ |
604 | struct lttcomm_session_destroy_command_header { | |
605 | /* enum lttng_session */ | |
606 | int32_t rotation_state; | |
607 | }; | |
608 | ||
55c9e7ca JR |
609 | /* |
610 | * tracker command header. | |
611 | */ | |
612 | struct lttcomm_tracker_command_header { | |
613 | uint32_t nb_tracker_id; | |
614 | } LTTNG_PACKED; | |
615 | ||
fac6795d | 616 | /* |
5e16da05 | 617 | * Data structure for the response from sessiond to the lttng client. |
fac6795d | 618 | */ |
5461b305 | 619 | struct lttcomm_lttng_msg { |
28f23191 JG |
620 | uint32_t cmd_type; /* enum lttcomm_sessiond_command */ |
621 | uint32_t ret_code; /* enum lttcomm_return_code */ | |
622 | uint32_t pid; /* pid_t */ | |
795a978d | 623 | uint32_t cmd_header_size; |
773168b7 | 624 | uint32_t data_size; |
e368fb43 | 625 | uint32_t fd_count; |
fc5e05b7 | 626 | } LTTNG_PACKED; |
fac6795d | 627 | |
da3c9ec1 DG |
628 | struct lttcomm_lttng_output_id { |
629 | uint32_t id; | |
630 | } LTTNG_PACKED; | |
631 | ||
6e3805e2 | 632 | /* |
3bd1e081 MD |
633 | * lttcomm_consumer_msg is the message sent from sessiond to consumerd |
634 | * to either add a channel, add a stream, update a stream, or stop | |
635 | * operation. | |
6e3805e2 | 636 | */ |
3bd1e081 | 637 | struct lttcomm_consumer_msg { |
28f23191 | 638 | uint32_t cmd_type; /* enum lttng_consumer_command */ |
3bd1e081 MD |
639 | union { |
640 | struct { | |
d88aee68 | 641 | uint64_t channel_key; |
ffe60014 | 642 | uint64_t session_id; |
d2956687 | 643 | /* ID of the session's current trace chunk. */ |
0a30bf9b | 644 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id; |
ffe60014 | 645 | char pathname[PATH_MAX]; |
d88aee68 | 646 | uint64_t relayd_id; |
c30aaa51 | 647 | /* nb_init_streams is the number of streams open initially. */ |
d88aee68 | 648 | uint32_t nb_init_streams; |
de5e9086 | 649 | char name[LTTNG_SYMBOL_NAME_LEN]; |
ffe60014 DG |
650 | /* Use splice or mmap to consume this fd */ |
651 | enum lttng_event_output output; | |
652 | int type; /* Per cpu or metadata. */ | |
1624d5b7 JD |
653 | uint64_t tracefile_size; /* bytes */ |
654 | uint32_t tracefile_count; /* number of tracefiles */ | |
2bba9e53 DG |
655 | /* If the channel's streams have to be monitored or not. */ |
656 | uint32_t monitor; | |
ecc48a90 JD |
657 | /* timer to check the streams usage in live mode (usec). */ |
658 | unsigned int live_timer_interval; | |
a2814ea7 JG |
659 | /* is part of a live session */ |
660 | uint8_t is_live; | |
e9404c27 JG |
661 | /* timer to sample a channel's positions (usec). */ |
662 | unsigned int monitor_timer_interval; | |
ffe60014 | 663 | } LTTNG_PACKED channel; /* Only used by Kernel. */ |
3bd1e081 | 664 | struct { |
d88aee68 DG |
665 | uint64_t stream_key; |
666 | uint64_t channel_key; | |
28f23191 | 667 | int32_t cpu; /* On which CPU this stream is assigned. */ |
6dc3064a DG |
668 | /* Tells the consumer if the stream should be or not monitored. */ |
669 | uint32_t no_monitor; | |
28f23191 | 670 | } LTTNG_PACKED stream; /* Only used by Kernel. */ |
de5e9086 | 671 | struct { |
d88aee68 | 672 | uint64_t net_index; |
de5e9086 | 673 | enum lttng_stream_type type; |
4222116f JR |
674 | uint32_t major; |
675 | uint32_t minor; | |
676 | uint8_t relayd_socket_protocol; | |
46e6455f DG |
677 | /* Tracing session id associated to the relayd. */ |
678 | uint64_t session_id; | |
d3e2ba59 JD |
679 | /* Relayd session id, only used with control socket. */ |
680 | uint64_t relayd_session_id; | |
fc5e05b7 | 681 | } LTTNG_PACKED relayd_sock; |
173af62f DG |
682 | struct { |
683 | uint64_t net_seq_idx; | |
fc5e05b7 | 684 | } LTTNG_PACKED destroy_relayd; |
53632229 DG |
685 | struct { |
686 | uint64_t session_id; | |
fc5e05b7 | 687 | } LTTNG_PACKED data_pending; |
ffe60014 | 688 | struct { |
28f23191 JG |
689 | uint64_t subbuf_size; /* bytes */ |
690 | uint64_t num_subbuf; /* power of 2 */ | |
691 | int32_t overwrite; /* 1: overwrite, 0: discard */ | |
692 | uint32_t switch_timer_interval; /* usec */ | |
693 | uint32_t read_timer_interval; /* usec */ | |
694 | unsigned int live_timer_interval; /* usec */ | |
695 | uint8_t is_live; /* is part of a live session */ | |
696 | uint32_t monitor_timer_interval; /* usec */ | |
697 | int32_t output; /* splice, mmap */ | |
698 | int32_t type; /* metadata or per_cpu */ | |
699 | uint64_t session_id; /* Tracing session id */ | |
700 | char pathname[PATH_MAX]; /* Channel file path. */ | |
701 | char name[LTTNG_SYMBOL_NAME_LEN]; /* Channel name. */ | |
d2956687 JG |
702 | /* Credentials used to open the UST buffer shared mappings. */ |
703 | struct { | |
704 | uint32_t uid; | |
705 | uint32_t gid; | |
706 | } LTTNG_PACKED buffer_credentials; | |
28f23191 JG |
707 | uint64_t relayd_id; /* Relayd id if apply. */ |
708 | uint64_t key; /* Unique channel key. */ | |
d2956687 | 709 | /* ID of the session's current trace chunk. */ |
0a30bf9b | 710 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id; |
28f23191 JG |
711 | unsigned char uuid[LTTNG_UUID_LEN]; /* uuid for ust tracer. */ |
712 | uint32_t chan_id; /* Channel ID on the tracer side. */ | |
713 | uint64_t tracefile_size; /* bytes */ | |
714 | uint32_t tracefile_count; /* number of tracefiles */ | |
715 | uint64_t session_id_per_pid; /* Per-pid session ID. */ | |
2bba9e53 DG |
716 | /* Tells the consumer if the stream should be or not monitored. */ |
717 | uint32_t monitor; | |
567eb353 DG |
718 | /* |
719 | * For UST per UID buffers, this is the application UID of the | |
720 | * channel. This can be different from the user UID requesting the | |
721 | * channel creation and used for the rights on the stream file | |
722 | * because the application can be in the tracing for instance. | |
723 | */ | |
724 | uint32_t ust_app_uid; | |
491d1539 | 725 | int64_t blocking_timeout; |
3d071855 | 726 | char root_shm_path[PATH_MAX]; |
d7ba1388 | 727 | char shm_path[PATH_MAX]; |
ffe60014 DG |
728 | } LTTNG_PACKED ask_channel; |
729 | struct { | |
d88aee68 | 730 | uint64_t key; |
ffe60014 DG |
731 | } LTTNG_PACKED get_channel; |
732 | struct { | |
d88aee68 | 733 | uint64_t key; |
ffe60014 | 734 | } LTTNG_PACKED destroy_channel; |
d88aee68 | 735 | struct { |
28f23191 JG |
736 | uint64_t key; /* Metadata channel key. */ |
737 | uint64_t target_offset; /* Offset in the consumer */ | |
738 | uint64_t len; /* Length of metadata to be received. */ | |
93ec662e | 739 | uint64_t version; /* Version of the metadata. */ |
d88aee68 DG |
740 | } LTTNG_PACKED push_metadata; |
741 | struct { | |
28f23191 | 742 | uint64_t key; /* Metadata channel key. */ |
d88aee68 DG |
743 | } LTTNG_PACKED close_metadata; |
744 | struct { | |
28f23191 | 745 | uint64_t key; /* Metadata channel key. */ |
d88aee68 | 746 | } LTTNG_PACKED setup_metadata; |
7972aab2 | 747 | struct { |
28f23191 | 748 | uint64_t key; /* Channel key. */ |
7972aab2 | 749 | } LTTNG_PACKED flush_channel; |
0dd01979 | 750 | struct { |
28f23191 | 751 | uint64_t key; /* Channel key. */ |
0dd01979 | 752 | } LTTNG_PACKED clear_quiescent_channel; |
6dc3064a DG |
753 | struct { |
754 | char pathname[PATH_MAX]; | |
755 | /* Indicate if the snapshot goes on the relayd or locally. */ | |
756 | uint32_t use_relayd; | |
28f23191 JG |
757 | uint32_t metadata; /* This a metadata snapshot. */ |
758 | uint64_t relayd_id; /* Relayd id if apply. */ | |
6dc3064a | 759 | uint64_t key; |
d07ceecd | 760 | uint64_t nb_packets_per_stream; |
6dc3064a | 761 | } LTTNG_PACKED snapshot_channel; |
a4baae1b JD |
762 | struct { |
763 | uint64_t channel_key; | |
764 | uint64_t net_seq_idx; | |
765 | } LTTNG_PACKED sent_streams; | |
fb83fe64 JD |
766 | struct { |
767 | uint64_t session_id; | |
768 | uint64_t channel_key; | |
769 | } LTTNG_PACKED discarded_events; | |
770 | struct { | |
771 | uint64_t session_id; | |
772 | uint64_t channel_key; | |
773 | } LTTNG_PACKED lost_packets; | |
93ec662e JD |
774 | struct { |
775 | uint64_t session_id; | |
eded6438 | 776 | } LTTNG_PACKED regenerate_metadata; |
b99a8d42 | 777 | struct { |
b99a8d42 JD |
778 | uint32_t metadata; /* This is a metadata channel. */ |
779 | uint64_t relayd_id; /* Relayd id if apply. */ | |
780 | uint64_t key; | |
b99a8d42 | 781 | } LTTNG_PACKED rotate_channel; |
92816cc3 JG |
782 | struct { |
783 | uint64_t session_id; | |
784 | uint64_t chunk_id; | |
785 | } LTTNG_PACKED check_rotation_pending_local; | |
d88744a4 JD |
786 | struct { |
787 | uint64_t relayd_id; | |
788 | uint64_t session_id; | |
789 | uint64_t chunk_id; | |
92816cc3 | 790 | } LTTNG_PACKED check_rotation_pending_relay; |
a1ae2ea5 | 791 | struct { |
d2956687 JG |
792 | /* |
793 | * Relayd id, if applicable (remote). | |
794 | * | |
795 | * A directory file descriptor referring to the chunk's | |
796 | * output folder is transmitted if the chunk is local | |
797 | * (relayd_id unset). | |
798 | * | |
799 | * `override_name` is left NULL (all-zeroes) if the | |
913a542b | 800 | * chunk's name is not overridden. |
d2956687 | 801 | */ |
0a30bf9b | 802 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
d2956687 JG |
803 | char override_name[LTTNG_NAME_MAX]; |
804 | uint64_t session_id; | |
805 | uint64_t chunk_id; | |
806 | uint64_t creation_timestamp; | |
e5add6d0 | 807 | LTTNG_OPTIONAL_COMM(struct { |
d2956687 JG |
808 | uint32_t uid; |
809 | uint32_t gid; | |
28f23191 JG |
810 | } LTTNG_PACKED) |
811 | LTTNG_PACKED credentials; | |
d2956687 JG |
812 | } LTTNG_PACKED create_trace_chunk; |
813 | struct { | |
0a30bf9b | 814 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
d2956687 JG |
815 | uint64_t session_id; |
816 | uint64_t chunk_id; | |
817 | uint64_t close_timestamp; | |
bbc4768c JG |
818 | /* enum lttng_trace_chunk_command_type */ |
819 | LTTNG_OPTIONAL_COMM(uint32_t) LTTNG_PACKED close_command; | |
d2956687 JG |
820 | } LTTNG_PACKED close_trace_chunk; |
821 | struct { | |
0a30bf9b | 822 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
a1ae2ea5 | 823 | uint64_t session_id; |
d2956687 JG |
824 | uint64_t chunk_id; |
825 | } LTTNG_PACKED trace_chunk_exists; | |
826 | struct { | |
328c2fe7 | 827 | uint8_t sessiond_uuid[LTTNG_UUID_LEN]; |
d2956687 | 828 | } LTTNG_PACKED init; |
b01b201a MD |
829 | struct { |
830 | uint64_t key; | |
831 | } LTTNG_PACKED clear_channel; | |
04ed9e10 JG |
832 | struct { |
833 | uint64_t key; | |
834 | } LTTNG_PACKED open_channel_packets; | |
3bd1e081 | 835 | } u; |
fc5e05b7 | 836 | } LTTNG_PACKED; |
6e3805e2 | 837 | |
e9404c27 JG |
838 | /* |
839 | * Channel monitoring message returned to the session daemon on every | |
840 | * monitor timer expiration. | |
841 | */ | |
842 | struct lttcomm_consumer_channel_monitor_msg { | |
843 | /* Key of the sampled channel. */ | |
844 | uint64_t key; | |
319dcddc JG |
845 | /* Id of the sampled channel's session. */ |
846 | uint64_t session_id; | |
e9404c27 JG |
847 | /* |
848 | * Lowest and highest usage (bytes) at the moment the sample was taken. | |
849 | */ | |
850 | uint64_t lowest, highest; | |
e8360425 JD |
851 | /* |
852 | * Sum of all the consumed positions for a channel. | |
853 | */ | |
319dcddc | 854 | uint64_t consumed_since_last_sample; |
e9404c27 JG |
855 | } LTTNG_PACKED; |
856 | ||
f50f23d9 DG |
857 | /* |
858 | * Status message returned to the sessiond after a received command. | |
859 | */ | |
860 | struct lttcomm_consumer_status_msg { | |
0c759fc9 | 861 | enum lttcomm_return_code ret_code; |
fc5e05b7 | 862 | } LTTNG_PACKED; |
f50f23d9 | 863 | |
ffe60014 | 864 | struct lttcomm_consumer_status_channel { |
0c759fc9 | 865 | enum lttcomm_return_code ret_code; |
d88aee68 | 866 | uint64_t key; |
ffe60014 DG |
867 | unsigned int stream_count; |
868 | } LTTNG_PACKED; | |
869 | ||
ecd1a12f MD |
870 | struct lttcomm_consumer_close_trace_chunk_reply { |
871 | enum lttcomm_return_code ret_code; | |
872 | uint32_t path_length; | |
873 | char path[]; | |
874 | }; | |
875 | ||
51791532 JG |
876 | #ifdef HAVE_LIBLTTNG_UST_CTL |
877 | ||
9df8df5e | 878 | #include <lttng/ust-abi.h> |
6e3805e2 | 879 | |
3817e7df DG |
880 | /* |
881 | * Data structure for the commands sent from sessiond to UST. | |
882 | */ | |
883 | struct lttcomm_ust_msg { | |
3817e7df DG |
884 | uint32_t handle; |
885 | uint32_t cmd; | |
886 | union { | |
fc4b93fa MD |
887 | struct lttng_ust_abi_channel channel; |
888 | struct lttng_ust_abi_stream stream; | |
889 | struct lttng_ust_abi_event event; | |
890 | struct lttng_ust_abi_context context; | |
891 | struct lttng_ust_abi_tracer_version version; | |
3817e7df | 892 | } u; |
fc5e05b7 | 893 | } LTTNG_PACKED; |
3817e7df DG |
894 | |
895 | /* | |
896 | * Data structure for the response from UST to the session daemon. | |
897 | * cmd_type is sent back in the reply for validation. | |
898 | */ | |
899 | struct lttcomm_ust_reply { | |
900 | uint32_t handle; | |
901 | uint32_t cmd; | |
28f23191 JG |
902 | uint32_t ret_code; /* enum lttcomm_return_code */ |
903 | uint32_t ret_val; /* return value */ | |
3817e7df | 904 | union { |
2b0bf864 DG |
905 | struct { |
906 | uint64_t memory_map_size; | |
fc5e05b7 | 907 | } LTTNG_PACKED channel; |
2b0bf864 DG |
908 | struct { |
909 | uint64_t memory_map_size; | |
fc5e05b7 | 910 | } LTTNG_PACKED stream; |
fc4b93fa | 911 | struct lttng_ust_abi_tracer_version version; |
3817e7df | 912 | } u; |
fc5e05b7 | 913 | } LTTNG_PACKED; |
3817e7df | 914 | |
74d0b642 | 915 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 916 | |
ca806b0b | 917 | const char *lttcomm_get_readable_code(enum lttcomm_return_code code); |
fac6795d | 918 | |
ca806b0b | 919 | int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr, |
28f23191 JG |
920 | const char *ip, |
921 | unsigned int port); | |
ca806b0b | 922 | int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr, |
28f23191 JG |
923 | const char *ip, |
924 | unsigned int port); | |
6364a07a | 925 | |
ca806b0b | 926 | struct lttcomm_sock *lttcomm_alloc_sock(enum lttcomm_sock_proto proto); |
4222116f | 927 | int lttcomm_populate_sock_from_open_socket(struct lttcomm_sock *sock, |
28f23191 JG |
928 | int fd, |
929 | enum lttcomm_sock_proto protocol); | |
ca806b0b SM |
930 | int lttcomm_create_sock(struct lttcomm_sock *sock); |
931 | struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri); | |
932 | void lttcomm_destroy_sock(struct lttcomm_sock *sock); | |
933 | struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src); | |
28f23191 | 934 | void lttcomm_copy_sock(struct lttcomm_sock *dst, struct lttcomm_sock *src); |
6364a07a | 935 | |
6151a90f | 936 | /* Relayd socket object. */ |
28f23191 JG |
937 | struct lttcomm_relayd_sock * |
938 | lttcomm_alloc_relayd_sock(struct lttng_uri *uri, uint32_t major, uint32_t minor); | |
6151a90f | 939 | |
ca806b0b SM |
940 | int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec); |
941 | int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec); | |
783a3b9a | 942 | |
28f23191 | 943 | int lttcomm_sock_get_port(const struct lttcomm_sock *sock, uint16_t *port); |
2288467f JG |
944 | /* |
945 | * Set a port to an lttcomm_sock. This will have no effect is the socket is | |
946 | * already bound. | |
947 | */ | |
ca806b0b | 948 | int lttcomm_sock_set_port(struct lttcomm_sock *sock, uint16_t port); |
2288467f | 949 | |
cd9adb8b | 950 | void lttcomm_init(); |
554831e7 | 951 | /* Get network timeout, in milliseconds */ |
cd9adb8b | 952 | unsigned long lttcomm_get_network_timeout(); |
554831e7 | 953 | |
28f23191 | 954 | #endif /* _LTTNG_SESSIOND_COMM_H */ |