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> |
da3c9ec1 | 19 | #include <lttng/snapshot-internal.h> |
00c76cea | 20 | #include <lttng/save-internal.h> |
e9404c27 JG |
21 | #include <lttng/channel-internal.h> |
22 | #include <lttng/trigger/trigger-internal.h> | |
d88744a4 | 23 | #include <lttng/rotate-internal.h> |
b17231c6 | 24 | #include <common/compat/socket.h> |
a4b92340 | 25 | #include <common/uri.h> |
ce2a9e76 | 26 | #include <common/defaults.h> |
c70636a7 | 27 | #include <common/uuid.h> |
aa52c986 | 28 | #include <common/macros.h> |
d2956687 | 29 | #include <common/optional.h> |
5e16da05 | 30 | |
6364a07a DG |
31 | #include <arpa/inet.h> |
32 | #include <netinet/in.h> | |
33 | #include <sys/un.h> | |
34 | ||
35 | #include "inet.h" | |
36 | #include "inet6.h" | |
2038dd6c | 37 | #include <common/unix.h> |
0d37f2bc | 38 | |
fac6795d | 39 | /* Queue size of listen(2) */ |
f158a754 | 40 | #define LTTNG_SESSIOND_COMM_MAX_LISTEN 64 |
fac6795d | 41 | |
990570ed | 42 | /* Maximum number of FDs that can be sent over a Unix socket */ |
0b5a4de9 JG |
43 | #if defined(__linux__) |
44 | /* Based on the kernel's SCM_MAX_FD which is 253 since 2.6.38 (255 before) */ | |
45 | #define LTTCOMM_MAX_SEND_FDS 253 | |
46 | #else | |
47 | #define LTTCOMM_MAX_SEND_FDS 16 | |
48 | #endif | |
990570ed | 49 | |
6abb15de | 50 | enum lttcomm_sessiond_command { |
0d0c377a | 51 | /* Tracer command */ |
159b042f | 52 | LTTNG_ADD_CONTEXT = 0, |
b812e5ca | 53 | /* LTTNG_CALIBRATE used to be here */ |
159b042f JG |
54 | LTTNG_DISABLE_CHANNEL = 2, |
55 | LTTNG_DISABLE_EVENT = 3, | |
56 | LTTNG_LIST_SYSCALLS = 4, | |
57 | LTTNG_ENABLE_CHANNEL = 5, | |
58 | LTTNG_ENABLE_EVENT = 6, | |
18a720cd | 59 | /* 7 */ |
0d0c377a | 60 | /* Session daemon command */ |
b178f53e | 61 | /* 8 */ |
159b042f JG |
62 | LTTNG_DESTROY_SESSION = 9, |
63 | LTTNG_LIST_CHANNELS = 10, | |
64 | LTTNG_LIST_DOMAINS = 11, | |
65 | LTTNG_LIST_EVENTS = 12, | |
66 | LTTNG_LIST_SESSIONS = 13, | |
67 | LTTNG_LIST_TRACEPOINTS = 14, | |
68 | LTTNG_REGISTER_CONSUMER = 15, | |
69 | LTTNG_START_TRACE = 16, | |
70 | LTTNG_STOP_TRACE = 17, | |
71 | LTTNG_LIST_TRACEPOINT_FIELDS = 18, | |
53a80697 | 72 | |
de5e9086 | 73 | /* Consumer */ |
159b042f JG |
74 | LTTNG_DISABLE_CONSUMER = 19, |
75 | LTTNG_ENABLE_CONSUMER = 20, | |
76 | LTTNG_SET_CONSUMER_URI = 21, | |
67676bd8 DG |
77 | /* 22 */ |
78 | /* 23 */ | |
159b042f JG |
79 | LTTNG_DATA_PENDING = 24, |
80 | LTTNG_SNAPSHOT_ADD_OUTPUT = 25, | |
81 | LTTNG_SNAPSHOT_DEL_OUTPUT = 26, | |
82 | LTTNG_SNAPSHOT_LIST_OUTPUT = 27, | |
83 | LTTNG_SNAPSHOT_RECORD = 28, | |
b178f53e JG |
84 | /* 29 */ |
85 | /* 30 */ | |
159b042f JG |
86 | LTTNG_SAVE_SESSION = 31, |
87 | LTTNG_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE = 32, | |
88 | LTTNG_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE = 33, | |
89 | LTTNG_PROCESS_ATTR_TRACKER_GET_POLICY = 34, | |
90 | LTTNG_PROCESS_ATTR_TRACKER_SET_POLICY = 35, | |
91 | LTTNG_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET = 36, | |
92 | LTTNG_SET_SESSION_SHM_PATH = 40, | |
93 | LTTNG_REGENERATE_METADATA = 41, | |
94 | LTTNG_REGENERATE_STATEDUMP = 42, | |
95 | LTTNG_REGISTER_TRIGGER = 43, | |
96 | LTTNG_UNREGISTER_TRIGGER = 44, | |
97 | LTTNG_ROTATE_SESSION = 45, | |
98 | LTTNG_ROTATION_GET_INFO = 46, | |
99 | LTTNG_ROTATION_SET_SCHEDULE = 47, | |
100 | LTTNG_SESSION_LIST_ROTATION_SCHEDULES = 48, | |
101 | LTTNG_CREATE_SESSION_EXT = 49, | |
102 | LTTNG_CLEAR_SESSION = 50, | |
fbc9f37d | 103 | LTTNG_LIST_TRIGGERS = 51, |
b99a0cb3 | 104 | LTTNG_EXECUTE_ERROR_QUERY = 52, |
7c9534d6 JD |
105 | }; |
106 | ||
19f912db FD |
107 | static inline |
108 | const char *lttcomm_sessiond_command_str(enum lttcomm_sessiond_command cmd) | |
109 | { | |
110 | switch (cmd) { | |
111 | case LTTNG_ADD_CONTEXT: | |
112 | return "LTTNG_ADD_CONTEXT"; | |
113 | case LTTNG_DISABLE_CHANNEL: | |
114 | return "LTTNG_DISABLE_CHANNEL"; | |
115 | case LTTNG_DISABLE_EVENT: | |
116 | return "LTTNG_DISABLE_EVENT"; | |
117 | case LTTNG_LIST_SYSCALLS: | |
118 | return "LTTNG_LIST_SYSCALLS"; | |
119 | case LTTNG_ENABLE_CHANNEL: | |
120 | return "LTTNG_ENABLE_CHANNEL"; | |
121 | case LTTNG_ENABLE_EVENT: | |
122 | return "LTTNG_ENABLE_EVENT"; | |
123 | case LTTNG_DESTROY_SESSION: | |
124 | return "LTTNG_DESTROY_SESSION"; | |
125 | case LTTNG_LIST_CHANNELS: | |
126 | return "LTTNG_LIST_CHANNELS"; | |
127 | case LTTNG_LIST_DOMAINS: | |
128 | return "LTTNG_LIST_DOMAINS"; | |
129 | case LTTNG_LIST_EVENTS: | |
130 | return "LTTNG_LIST_EVENTS"; | |
131 | case LTTNG_LIST_SESSIONS: | |
132 | return "LTTNG_LIST_SESSIONS"; | |
133 | case LTTNG_LIST_TRACEPOINTS: | |
134 | return "LTTNG_LIST_TRACEPOINTS"; | |
135 | case LTTNG_REGISTER_CONSUMER: | |
136 | return "LTTNG_REGISTER_CONSUMER"; | |
137 | case LTTNG_START_TRACE: | |
138 | return "LTTNG_START_TRACE"; | |
139 | case LTTNG_STOP_TRACE: | |
140 | return "LTTNG_STOP_TRACE"; | |
141 | case LTTNG_LIST_TRACEPOINT_FIELDS: | |
142 | return "LTTNG_LIST_TRACEPOINT_FIELDS"; | |
143 | case LTTNG_DISABLE_CONSUMER: | |
144 | return "LTTNG_DISABLE_CONSUMER"; | |
145 | case LTTNG_ENABLE_CONSUMER: | |
146 | return "LTTNG_ENABLE_CONSUMER"; | |
147 | case LTTNG_SET_CONSUMER_URI: | |
148 | return "LTTNG_SET_CONSUMER_URI"; | |
149 | case LTTNG_DATA_PENDING: | |
150 | return "LTTNG_DATA_PENDING"; | |
151 | case LTTNG_SNAPSHOT_ADD_OUTPUT: | |
152 | return "LTTNG_SNAPSHOT_ADD_OUTPUT"; | |
153 | case LTTNG_SNAPSHOT_DEL_OUTPUT: | |
154 | return "LTTNG_SNAPSHOT_DEL_OUTPUT"; | |
155 | case LTTNG_SNAPSHOT_LIST_OUTPUT: | |
156 | return "LTTNG_SNAPSHOT_LIST_OUTPUT"; | |
157 | case LTTNG_SNAPSHOT_RECORD: | |
158 | return "LTTNG_SNAPSHOT_RECORD"; | |
159 | case LTTNG_SAVE_SESSION: | |
160 | return "LTTNG_SAVE_SESSION"; | |
161 | case LTTNG_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE: | |
162 | return "LTTNG_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE"; | |
163 | case LTTNG_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE: | |
164 | return "LTTNG_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE"; | |
165 | case LTTNG_PROCESS_ATTR_TRACKER_GET_POLICY: | |
166 | return "LTTNG_PROCESS_ATTR_TRACKER_GET_POLICY"; | |
167 | case LTTNG_PROCESS_ATTR_TRACKER_SET_POLICY: | |
168 | return "LTTNG_PROCESS_ATTR_TRACKER_SET_POLICY"; | |
169 | case LTTNG_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET: | |
170 | return "LTTNG_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET"; | |
171 | case LTTNG_SET_SESSION_SHM_PATH: | |
172 | return "LTTNG_SET_SESSION_SHM_PATH"; | |
173 | case LTTNG_REGENERATE_METADATA: | |
174 | return "LTTNG_REGENERATE_METADATA"; | |
175 | case LTTNG_REGENERATE_STATEDUMP: | |
176 | return "LTTNG_REGENERATE_STATEDUMP"; | |
177 | case LTTNG_REGISTER_TRIGGER: | |
178 | return "LTTNG_REGISTER_TRIGGER"; | |
179 | case LTTNG_UNREGISTER_TRIGGER: | |
180 | return "LTTNG_UNREGISTER_TRIGGER"; | |
181 | case LTTNG_ROTATE_SESSION: | |
182 | return "LTTNG_ROTATE_SESSION"; | |
183 | case LTTNG_ROTATION_GET_INFO: | |
184 | return "LTTNG_ROTATION_GET_INFO"; | |
185 | case LTTNG_ROTATION_SET_SCHEDULE: | |
186 | return "LTTNG_ROTATION_SET_SCHEDULE"; | |
187 | case LTTNG_SESSION_LIST_ROTATION_SCHEDULES: | |
188 | return "LTTNG_SESSION_LIST_ROTATION_SCHEDULES"; | |
189 | case LTTNG_CREATE_SESSION_EXT: | |
190 | return "LTTNG_CREATE_SESSION_EXT"; | |
191 | case LTTNG_CLEAR_SESSION: | |
192 | return "LTTNG_CLEAR_SESSION"; | |
193 | case LTTNG_LIST_TRIGGERS: | |
194 | return "LTTNG_LIST_TRIGGERS"; | |
b99a0cb3 JG |
195 | case LTTNG_EXECUTE_ERROR_QUERY: |
196 | return "LTTNG_EXECUTE_ERROR_QUERY"; | |
19f912db FD |
197 | default: |
198 | abort(); | |
199 | } | |
200 | } | |
201 | ||
7c9534d6 JD |
202 | enum lttcomm_relayd_command { |
203 | RELAYD_ADD_STREAM = 1, | |
204 | RELAYD_CREATE_SESSION = 2, | |
205 | RELAYD_START_DATA = 3, | |
206 | RELAYD_UPDATE_SYNC_INFO = 4, | |
207 | RELAYD_VERSION = 5, | |
208 | RELAYD_SEND_METADATA = 6, | |
209 | RELAYD_CLOSE_STREAM = 7, | |
210 | RELAYD_DATA_PENDING = 8, | |
211 | RELAYD_QUIESCENT_CONTROL = 9, | |
212 | RELAYD_BEGIN_DATA_PENDING = 10, | |
213 | RELAYD_END_DATA_PENDING = 11, | |
1c20f0e2 JD |
214 | RELAYD_ADD_INDEX = 12, |
215 | RELAYD_SEND_INDEX = 13, | |
216 | RELAYD_CLOSE_INDEX = 14, | |
a4baae1b | 217 | /* Live-reading commands (2.4+). */ |
d3e2ba59 | 218 | RELAYD_LIST_SESSIONS = 15, |
a4baae1b JD |
219 | /* All streams of the channel have been sent to the relayd (2.4+). */ |
220 | RELAYD_STREAMS_SENT = 16, | |
93ec662e JD |
221 | /* Ask the relay to reset the metadata trace file (2.8+) */ |
222 | RELAYD_RESET_METADATA = 17, | |
c35f9726 JG |
223 | /* Ask the relay to rotate a set of stream files (2.11+) */ |
224 | RELAYD_ROTATE_STREAMS = 18, | |
e5add6d0 JG |
225 | /* Ask the relay to create a trace chunk (2.11+) */ |
226 | RELAYD_CREATE_TRACE_CHUNK = 19, | |
bbc4768c JG |
227 | /* Ask the relay to close a trace chunk (2.11+) */ |
228 | RELAYD_CLOSE_TRACE_CHUNK = 20, | |
c35f9726 JG |
229 | /* Ask the relay whether a trace chunk exists (2.11+) */ |
230 | RELAYD_TRACE_CHUNK_EXISTS = 21, | |
8614e600 MD |
231 | /* Get the current configuration of a relayd peer (2.12+) */ |
232 | RELAYD_GET_CONFIGURATION = 22, | |
3fe73a46 MD |
233 | |
234 | /* Feature branch specific commands start at 10000. */ | |
fac6795d DG |
235 | }; |
236 | ||
00e71031 FD |
237 | static inline |
238 | const char *lttcomm_relayd_command_str(lttcomm_relayd_command cmd) | |
239 | { | |
240 | switch (cmd) { | |
241 | case RELAYD_ADD_STREAM: | |
242 | return "RELAYD_ADD_STREAM"; | |
243 | case RELAYD_CREATE_SESSION: | |
244 | return "RELAYD_CREATE_SESSION"; | |
245 | case RELAYD_START_DATA: | |
246 | return "RELAYD_START_DATA"; | |
247 | case RELAYD_UPDATE_SYNC_INFO: | |
248 | return "RELAYD_UPDATE_SYNC_INFO"; | |
249 | case RELAYD_VERSION: | |
250 | return "RELAYD_VERSION"; | |
251 | case RELAYD_SEND_METADATA: | |
252 | return "RELAYD_SEND_METADATA"; | |
253 | case RELAYD_CLOSE_STREAM: | |
254 | return "RELAYD_CLOSE_STREAM"; | |
255 | case RELAYD_DATA_PENDING: | |
256 | return "RELAYD_DATA_PENDING"; | |
257 | case RELAYD_QUIESCENT_CONTROL: | |
258 | return "RELAYD_QUIESCENT_CONTROL"; | |
259 | case RELAYD_BEGIN_DATA_PENDING: | |
260 | return "RELAYD_BEGIN_DATA_PENDING"; | |
261 | case RELAYD_END_DATA_PENDING: | |
262 | return "RELAYD_END_DATA_PENDING"; | |
263 | case RELAYD_ADD_INDEX: | |
264 | return "RELAYD_ADD_INDEX"; | |
265 | case RELAYD_SEND_INDEX: | |
266 | return "RELAYD_SEND_INDEX"; | |
267 | case RELAYD_CLOSE_INDEX: | |
268 | return "RELAYD_CLOSE_INDEX"; | |
269 | case RELAYD_LIST_SESSIONS: | |
270 | return "RELAYD_LIST_SESSIONS"; | |
271 | case RELAYD_STREAMS_SENT: | |
272 | return "RELAYD_STREAMS_SENT"; | |
273 | case RELAYD_RESET_METADATA: | |
274 | return "RELAYD_RESET_METADATA"; | |
275 | case RELAYD_ROTATE_STREAMS: | |
276 | return "RELAYD_ROTATE_STREAMS"; | |
277 | case RELAYD_CREATE_TRACE_CHUNK: | |
278 | return "RELAYD_CREATE_TRACE_CHUNK"; | |
279 | case RELAYD_CLOSE_TRACE_CHUNK: | |
280 | return "RELAYD_CLOSE_TRACE_CHUNK"; | |
281 | case RELAYD_TRACE_CHUNK_EXISTS: | |
282 | return "RELAYD_TRACE_CHUNK_EXISTS"; | |
283 | case RELAYD_GET_CONFIGURATION: | |
284 | return "RELAYD_GET_CONFIGURATION"; | |
285 | default: | |
286 | abort(); | |
287 | } | |
288 | } | |
289 | ||
fac6795d DG |
290 | /* |
291 | * lttcomm error code. | |
292 | */ | |
293 | enum lttcomm_return_code { | |
0c759fc9 | 294 | LTTCOMM_CONSUMERD_SUCCESS = 0, /* Everything went fine. */ |
d2956687 JG |
295 | /* |
296 | * Some code paths use -1 to express an error, others | |
297 | * negate this consumer return code. Starting codes at | |
298 | * 100 ensures there is no mix-up between this error value | |
299 | * and legitimate status codes. | |
300 | */ | |
301 | LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 100, /* Command socket ready */ | |
f73fabfd DG |
302 | LTTCOMM_CONSUMERD_SUCCESS_RECV_FD, /* Success on receiving fds */ |
303 | LTTCOMM_CONSUMERD_ERROR_RECV_FD, /* Error on receiving fds */ | |
304 | LTTCOMM_CONSUMERD_ERROR_RECV_CMD, /* Error on receiving command */ | |
305 | LTTCOMM_CONSUMERD_POLL_ERROR, /* Error in polling thread */ | |
306 | LTTCOMM_CONSUMERD_POLL_NVAL, /* Poll on closed fd */ | |
307 | LTTCOMM_CONSUMERD_POLL_HUP, /* All fds have hungup */ | |
308 | LTTCOMM_CONSUMERD_EXIT_SUCCESS, /* Consumerd exiting normally */ | |
309 | LTTCOMM_CONSUMERD_EXIT_FAILURE, /* Consumerd exiting on error */ | |
310 | LTTCOMM_CONSUMERD_OUTFD_ERROR, /* Error opening the tracefile */ | |
311 | LTTCOMM_CONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */ | |
312 | LTTCOMM_CONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */ | |
313 | LTTCOMM_CONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */ | |
314 | LTTCOMM_CONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */ | |
ffe60014 | 315 | LTTCOMM_CONSUMERD_ENOMEM, /* Consumer is out of memory */ |
d88aee68 DG |
316 | LTTCOMM_CONSUMERD_ERROR_METADATA, /* Error with metadata. */ |
317 | LTTCOMM_CONSUMERD_FATAL, /* Fatal error. */ | |
618a6a28 | 318 | LTTCOMM_CONSUMERD_RELAYD_FAIL, /* Error on remote relayd */ |
0c759fc9 | 319 | LTTCOMM_CONSUMERD_CHANNEL_FAIL, /* Channel creation failed. */ |
e462382a | 320 | LTTCOMM_CONSUMERD_CHAN_NOT_FOUND, /* Channel not found. */ |
e9404c27 | 321 | LTTCOMM_CONSUMERD_ALREADY_SET, /* Resource already set. */ |
92b7a7f8 | 322 | LTTCOMM_CONSUMERD_ROTATION_FAIL, /* Rotation has failed. */ |
3eb928aa | 323 | LTTCOMM_CONSUMERD_SNAPSHOT_FAILED, /* snapshot has failed. */ |
d2956687 | 324 | LTTCOMM_CONSUMERD_CREATE_TRACE_CHUNK_FAILED,/* Trace chunk creation failed. */ |
64efa44e | 325 | LTTCOMM_CONSUMERD_CLOSE_TRACE_CHUNK_FAILED, /* Trace chunk close failed. */ |
d2956687 JG |
326 | LTTCOMM_CONSUMERD_INVALID_PARAMETERS, /* Invalid parameters. */ |
327 | LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL, /* Trace chunk exists on consumer daemon. */ | |
328 | LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE,/* Trace chunk exists on relay daemon. */ | |
329 | LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK, /* Unknown trace chunk. */ | |
b01b201a | 330 | LTTCOMM_CONSUMERD_RELAYD_CLEAR_DISALLOWED, /* Relayd does not accept clear command. */ |
04ed9e10 | 331 | LTTCOMM_CONSUMERD_UNKNOWN_ERROR, /* Unknown error. */ |
80e327fa | 332 | |
20fe2104 DG |
333 | /* MUST be last element */ |
334 | LTTCOMM_NR, /* Last element */ | |
fac6795d DG |
335 | }; |
336 | ||
de5e9086 DG |
337 | /* lttng socket protocol. */ |
338 | enum lttcomm_sock_proto { | |
339 | LTTCOMM_SOCK_UDP, | |
340 | LTTCOMM_SOCK_TCP, | |
341 | }; | |
342 | ||
343 | /* | |
344 | * Index in the net_families array below. Please keep in sync! | |
345 | */ | |
346 | enum lttcomm_sock_domain { | |
01d0a631 CB |
347 | LTTCOMM_INET = 0, |
348 | LTTCOMM_INET6 = 1, | |
de5e9086 DG |
349 | }; |
350 | ||
331744e3 JD |
351 | enum lttcomm_metadata_command { |
352 | LTTCOMM_METADATA_REQUEST = 1, | |
353 | }; | |
354 | ||
355 | /* | |
356 | * Commands sent from the consumerd to the sessiond to request if new metadata | |
357 | * is available. This message is used to find the per UID _or_ per PID registry | |
358 | * for the channel key. For per UID lookup, the triplet | |
359 | * bits_per_long/uid/session_id is used. On lookup failure, we search for the | |
360 | * per PID registry indexed by session id ignoring the other values. | |
361 | */ | |
362 | struct lttcomm_metadata_request_msg { | |
1950109e JD |
363 | uint64_t session_id; /* Tracing session id */ |
364 | uint64_t session_id_per_pid; /* Tracing session id for per-pid */ | |
331744e3 JD |
365 | uint32_t bits_per_long; /* Consumer ABI */ |
366 | uint32_t uid; | |
367 | uint64_t key; /* Metadata channel key. */ | |
368 | } LTTNG_PACKED; | |
369 | ||
de5e9086 DG |
370 | struct lttcomm_sockaddr { |
371 | enum lttcomm_sock_domain type; | |
372 | union { | |
373 | struct sockaddr_in sin; | |
374 | struct sockaddr_in6 sin6; | |
375 | } addr; | |
fc5e05b7 | 376 | } LTTNG_PACKED; |
de5e9086 DG |
377 | |
378 | struct lttcomm_sock { | |
d88aee68 | 379 | int32_t fd; |
de5e9086 DG |
380 | enum lttcomm_sock_proto proto; |
381 | struct lttcomm_sockaddr sockaddr; | |
382 | const struct lttcomm_proto_ops *ops; | |
fc5e05b7 | 383 | } LTTNG_PACKED; |
de5e9086 | 384 | |
6151a90f JD |
385 | /* |
386 | * Relayd sock. Adds the protocol version to use for the communications with | |
387 | * the relayd. | |
388 | */ | |
389 | struct lttcomm_relayd_sock { | |
390 | struct lttcomm_sock sock; | |
391 | uint32_t major; | |
392 | uint32_t minor; | |
393 | } LTTNG_PACKED; | |
394 | ||
de5e9086 DG |
395 | struct lttcomm_net_family { |
396 | int family; | |
397 | int (*create) (struct lttcomm_sock *sock, int type, int proto); | |
398 | }; | |
399 | ||
400 | struct lttcomm_proto_ops { | |
401 | int (*bind) (struct lttcomm_sock *sock); | |
402 | int (*close) (struct lttcomm_sock *sock); | |
403 | int (*connect) (struct lttcomm_sock *sock); | |
404 | struct lttcomm_sock *(*accept) (struct lttcomm_sock *sock); | |
405 | int (*listen) (struct lttcomm_sock *sock, int backlog); | |
406 | ssize_t (*recvmsg) (struct lttcomm_sock *sock, void *buf, size_t len, | |
407 | int flags); | |
c2d69327 JG |
408 | ssize_t (*sendmsg) (struct lttcomm_sock *sock, const void *buf, |
409 | size_t len, int flags); | |
de5e9086 DG |
410 | }; |
411 | ||
159b042f JG |
412 | struct process_attr_integral_value_comm { |
413 | union { | |
414 | int64_t _signed; | |
415 | uint64_t _unsigned; | |
416 | } u; | |
417 | } LTTNG_PACKED; | |
418 | ||
fac6795d | 419 | /* |
9bda164d | 420 | * Data structure received from lttng client to session daemon. |
fac6795d DG |
421 | */ |
422 | struct lttcomm_session_msg { | |
d0b96690 | 423 | uint32_t cmd_type; /* enum lttcomm_sessiond_command */ |
42abccdb | 424 | struct lttng_session session; |
9f19cc17 | 425 | struct lttng_domain domain; |
fac6795d | 426 | union { |
f3ed775e | 427 | /* Event data */ |
fac6795d | 428 | struct { |
db8870ed | 429 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
7bd95aee | 430 | struct lttng_event event; |
6b453b5e JG |
431 | /* Length of following filter expression. */ |
432 | uint32_t expression_len; | |
025faf73 DG |
433 | /* Length of following bytecode for filter. */ |
434 | uint32_t bytecode_len; | |
15e37663 | 435 | /* Exclusion count (fixed-size strings). */ |
a5516688 | 436 | uint32_t exclusion_count; |
15e37663 JG |
437 | /* Userspace probe location size. */ |
438 | uint32_t userspace_probe_location_len; | |
a5516688 JI |
439 | /* |
440 | * After this structure, the following variable-length | |
441 | * items are transmitted: | |
442 | * - char exclusion_names[LTTNG_SYMBOL_NAME_LEN][exclusion_count] | |
15e37663 | 443 | * - char filter_expression[expression_len] |
a5516688 JI |
444 | * - unsigned char filter_bytecode[bytecode_len] |
445 | */ | |
fc5e05b7 | 446 | } LTTNG_PACKED enable; |
6e911cad MD |
447 | struct { |
448 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; | |
7bd95aee | 449 | struct lttng_event event; |
6e911cad MD |
450 | /* Length of following filter expression. */ |
451 | uint32_t expression_len; | |
452 | /* Length of following bytecode for filter. */ | |
453 | uint32_t bytecode_len; | |
454 | /* | |
455 | * After this structure, the following variable-length | |
456 | * items are transmitted: | |
457 | * - unsigned char filter_expression[expression_len] | |
458 | * - unsigned char filter_bytecode[bytecode_len] | |
459 | */ | |
460 | } LTTNG_PACKED disable; | |
f3ed775e DG |
461 | /* Create channel */ |
462 | struct { | |
7bd95aee | 463 | struct lttng_channel chan; |
e9404c27 | 464 | struct lttng_channel_extended extended; |
fc5e05b7 | 465 | } LTTNG_PACKED channel; |
d65106b1 DG |
466 | /* Context */ |
467 | struct { | |
db8870ed | 468 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
7bd95aee | 469 | struct lttng_event_context ctx; |
2001793c JG |
470 | uint32_t provider_name_len; |
471 | uint32_t context_name_len; | |
fc5e05b7 | 472 | } LTTNG_PACKED context; |
d9800920 DG |
473 | /* Use by register_consumer */ |
474 | struct { | |
475 | char path[PATH_MAX]; | |
fc5e05b7 | 476 | } LTTNG_PACKED reg; |
9f19cc17 DG |
477 | /* List */ |
478 | struct { | |
db8870ed | 479 | char channel_name[LTTNG_SYMBOL_NAME_LEN]; |
fc5e05b7 | 480 | } LTTNG_PACKED list; |
d0254c7c | 481 | struct lttng_calibrate calibrate; |
a4b92340 | 482 | /* Used by the set_consumer_url and used by create_session also call */ |
de5e9086 | 483 | struct { |
a4b92340 DG |
484 | /* Number of lttng_uri following */ |
485 | uint32_t size; | |
fc5e05b7 | 486 | } LTTNG_PACKED uri; |
da3c9ec1 | 487 | struct { |
7bd95aee | 488 | struct lttng_snapshot_output output; |
da3c9ec1 DG |
489 | } LTTNG_PACKED snapshot_output; |
490 | struct { | |
491 | uint32_t wait; | |
7bd95aee | 492 | struct lttng_snapshot_output output; |
da3c9ec1 | 493 | } LTTNG_PACKED snapshot_record; |
ecc48a90 JD |
494 | struct { |
495 | uint32_t nb_uri; | |
496 | unsigned int timer_interval; /* usec */ | |
497 | } LTTNG_PACKED session_live; | |
00c76cea | 498 | struct { |
7bd95aee | 499 | struct lttng_save_session_attr attr; |
00c76cea | 500 | } LTTNG_PACKED save_session; |
d7ba1388 MD |
501 | struct { |
502 | char shm_path[PATH_MAX]; | |
503 | } LTTNG_PACKED set_shm_path; | |
ccf10263 | 504 | struct { |
159b042f JG |
505 | /* enum lttng_process_attr */ |
506 | int32_t process_attr; | |
507 | /* enum lttng_process_attr_value_type */ | |
508 | int32_t value_type; | |
509 | ||
510 | struct process_attr_integral_value_comm integral_value; | |
55c9e7ca | 511 | /* |
159b042f JG |
512 | * For user/group names, a variable length, |
513 | * zero-terminated, string of length 'name_len' | |
514 | * (including the terminator) follows. | |
515 | * | |
516 | * integral_value should not be used in those cases. | |
55c9e7ca | 517 | */ |
159b042f JG |
518 | uint32_t name_len; |
519 | } LTTNG_PACKED process_attr_tracker_add_remove_include_value; | |
55c9e7ca | 520 | struct { |
159b042f JG |
521 | /* enum lttng_process_attr */ |
522 | int32_t process_attr; | |
523 | } LTTNG_PACKED process_attr_tracker_get_inclusion_set; | |
524 | struct { | |
525 | /* enum lttng_process_attr */ | |
526 | int32_t process_attr; | |
527 | } LTTNG_PACKED process_attr_tracker_get_tracking_policy; | |
528 | struct { | |
529 | /* enum lttng_process_attr */ | |
530 | int32_t process_attr; | |
531 | /* enum lttng_tracking_policy */ | |
532 | int32_t tracking_policy; | |
533 | } LTTNG_PACKED process_attr_tracker_set_tracking_policy; | |
e9404c27 JG |
534 | struct { |
535 | uint32_t length; | |
0efb2ad7 | 536 | uint8_t is_trigger_anonymous; |
e9404c27 | 537 | } LTTNG_PACKED trigger; |
b99a0cb3 JG |
538 | struct { |
539 | uint32_t length; | |
540 | } LTTNG_PACKED error_query; | |
d88744a4 | 541 | struct { |
d68c9a04 JD |
542 | uint64_t rotation_id; |
543 | } LTTNG_PACKED get_rotation_info; | |
259c2674 | 544 | struct { |
66ea93b1 JG |
545 | /* enum lttng_rotation_schedule_type */ |
546 | uint8_t type; | |
547 | /* | |
548 | * If set == 1, set schedule to value, if set == 0, | |
549 | * clear this schedule type. | |
550 | */ | |
551 | uint8_t set; | |
552 | uint64_t value; | |
553 | } LTTNG_PACKED rotation_set_schedule; | |
b178f53e JG |
554 | struct { |
555 | /* | |
556 | * Includes the null-terminator. | |
557 | * Must be an absolute path. | |
558 | * | |
559 | * Size bounded by LTTNG_PATH_MAX. | |
560 | */ | |
561 | uint16_t home_dir_size; | |
562 | uint64_t session_descriptor_size; | |
563 | /* An lttng_session_descriptor follows. */ | |
564 | } LTTNG_PACKED create_session; | |
fac6795d | 565 | } u; |
99608320 JR |
566 | /* Count of fds sent. */ |
567 | uint32_t fd_count; | |
fc5e05b7 | 568 | } LTTNG_PACKED; |
fac6795d | 569 | |
d93c4f1f | 570 | #define LTTNG_FILTER_MAX_LEN 65536 |
b178f53e | 571 | #define LTTNG_SESSION_DESCRIPTOR_MAX_LEN 65536 |
53a80697 MD |
572 | |
573 | /* | |
574 | * Filter bytecode data. The reloc table is located at the end of the | |
575 | * bytecode. It is made of tuples: (uint16_t, var. len. string). It | |
576 | * starts at reloc_table_offset. | |
577 | */ | |
b6bbed5f | 578 | #define LTTNG_FILTER_PADDING 32 |
2b00d462 | 579 | struct lttng_bytecode { |
d93c4f1f CB |
580 | uint32_t len; /* len of data */ |
581 | uint32_t reloc_table_offset; | |
f3f0db50 | 582 | uint64_t seqnum; |
b6bbed5f | 583 | char padding[LTTNG_FILTER_PADDING]; |
53a80697 | 584 | char data[0]; |
fc5e05b7 | 585 | } LTTNG_PACKED; |
53a80697 | 586 | |
579640f9 JI |
587 | /* |
588 | * Event exclusion data. At the end of the structure, there will actually | |
589 | * by zero or more names, where the actual number of names is given by | |
590 | * the 'count' item of the structure. | |
591 | */ | |
592 | #define LTTNG_EVENT_EXCLUSION_PADDING 32 | |
593 | struct lttng_event_exclusion { | |
594 | uint32_t count; | |
595 | char padding[LTTNG_EVENT_EXCLUSION_PADDING]; | |
caafa356 | 596 | char names[0][LTTNG_SYMBOL_NAME_LEN]; |
579640f9 JI |
597 | } LTTNG_PACKED; |
598 | ||
d7af3565 PP |
599 | #define LTTNG_EVENT_EXCLUSION_NAME_AT(_exclusion, _i) \ |
600 | (&(_exclusion)->names[_i][0]) | |
601 | ||
b4e3ceb9 PP |
602 | /* |
603 | * Event command header. | |
604 | */ | |
605 | struct lttcomm_event_command_header { | |
606 | /* Number of events */ | |
607 | uint32_t nb_events; | |
608 | } LTTNG_PACKED; | |
609 | ||
610 | /* | |
611 | * Event extended info header. This is the structure preceding each | |
612 | * extended info data. | |
613 | */ | |
614 | struct lttcomm_event_extended_header { | |
615 | /* | |
616 | * Size of filter string immediately following this header. | |
617 | * This size includes the terminal null character. | |
618 | */ | |
619 | uint32_t filter_len; | |
795d57ce PP |
620 | |
621 | /* | |
622 | * Number of exclusion names, immediately following the filter | |
623 | * string. Each exclusion name has a fixed length of | |
624 | * LTTNG_SYMBOL_NAME_LEN bytes, including the terminal null | |
625 | * character. | |
626 | */ | |
627 | uint32_t nb_exclusions; | |
56f0bc67 JG |
628 | |
629 | /* | |
630 | * Size of the event's userspace probe location (if applicable). | |
631 | */ | |
632 | uint32_t userspace_probe_location_len; | |
b4e3ceb9 PP |
633 | } LTTNG_PACKED; |
634 | ||
3e3665b8 JG |
635 | /* |
636 | * Command header of the reply to an LTTNG_DESTROY_SESSION command. | |
637 | */ | |
638 | struct lttcomm_session_destroy_command_header { | |
639 | /* enum lttng_session */ | |
640 | int32_t rotation_state; | |
641 | }; | |
642 | ||
55c9e7ca JR |
643 | /* |
644 | * tracker command header. | |
645 | */ | |
646 | struct lttcomm_tracker_command_header { | |
647 | uint32_t nb_tracker_id; | |
648 | } LTTNG_PACKED; | |
649 | ||
fac6795d | 650 | /* |
5e16da05 | 651 | * Data structure for the response from sessiond to the lttng client. |
fac6795d | 652 | */ |
5461b305 | 653 | struct lttcomm_lttng_msg { |
d0b96690 DG |
654 | uint32_t cmd_type; /* enum lttcomm_sessiond_command */ |
655 | uint32_t ret_code; /* enum lttcomm_return_code */ | |
656 | uint32_t pid; /* pid_t */ | |
795a978d | 657 | uint32_t cmd_header_size; |
773168b7 | 658 | uint32_t data_size; |
e368fb43 | 659 | uint32_t fd_count; |
fc5e05b7 | 660 | } LTTNG_PACKED; |
fac6795d | 661 | |
da3c9ec1 DG |
662 | struct lttcomm_lttng_output_id { |
663 | uint32_t id; | |
664 | } LTTNG_PACKED; | |
665 | ||
6e3805e2 | 666 | /* |
3bd1e081 MD |
667 | * lttcomm_consumer_msg is the message sent from sessiond to consumerd |
668 | * to either add a channel, add a stream, update a stream, or stop | |
669 | * operation. | |
6e3805e2 | 670 | */ |
3bd1e081 | 671 | struct lttcomm_consumer_msg { |
92816cc3 | 672 | uint32_t cmd_type; /* enum lttng_consumer_command */ |
3bd1e081 MD |
673 | union { |
674 | struct { | |
d88aee68 | 675 | uint64_t channel_key; |
ffe60014 | 676 | uint64_t session_id; |
d2956687 | 677 | /* ID of the session's current trace chunk. */ |
0a30bf9b | 678 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id; |
ffe60014 | 679 | char pathname[PATH_MAX]; |
d88aee68 | 680 | uint64_t relayd_id; |
c30aaa51 | 681 | /* nb_init_streams is the number of streams open initially. */ |
d88aee68 | 682 | uint32_t nb_init_streams; |
de5e9086 | 683 | char name[LTTNG_SYMBOL_NAME_LEN]; |
ffe60014 DG |
684 | /* Use splice or mmap to consume this fd */ |
685 | enum lttng_event_output output; | |
686 | int type; /* Per cpu or metadata. */ | |
1624d5b7 JD |
687 | uint64_t tracefile_size; /* bytes */ |
688 | uint32_t tracefile_count; /* number of tracefiles */ | |
2bba9e53 DG |
689 | /* If the channel's streams have to be monitored or not. */ |
690 | uint32_t monitor; | |
ecc48a90 JD |
691 | /* timer to check the streams usage in live mode (usec). */ |
692 | unsigned int live_timer_interval; | |
a2814ea7 JG |
693 | /* is part of a live session */ |
694 | uint8_t is_live; | |
e9404c27 JG |
695 | /* timer to sample a channel's positions (usec). */ |
696 | unsigned int monitor_timer_interval; | |
ffe60014 | 697 | } LTTNG_PACKED channel; /* Only used by Kernel. */ |
3bd1e081 | 698 | struct { |
d88aee68 DG |
699 | uint64_t stream_key; |
700 | uint64_t channel_key; | |
701 | int32_t cpu; /* On which CPU this stream is assigned. */ | |
6dc3064a DG |
702 | /* Tells the consumer if the stream should be or not monitored. */ |
703 | uint32_t no_monitor; | |
ffe60014 | 704 | } LTTNG_PACKED stream; /* Only used by Kernel. */ |
de5e9086 | 705 | struct { |
d88aee68 | 706 | uint64_t net_index; |
de5e9086 DG |
707 | enum lttng_stream_type type; |
708 | /* Open socket to the relayd */ | |
6151a90f | 709 | struct lttcomm_relayd_sock sock; |
46e6455f DG |
710 | /* Tracing session id associated to the relayd. */ |
711 | uint64_t session_id; | |
d3e2ba59 JD |
712 | /* Relayd session id, only used with control socket. */ |
713 | uint64_t relayd_session_id; | |
fc5e05b7 | 714 | } LTTNG_PACKED relayd_sock; |
173af62f DG |
715 | struct { |
716 | uint64_t net_seq_idx; | |
fc5e05b7 | 717 | } LTTNG_PACKED destroy_relayd; |
53632229 DG |
718 | struct { |
719 | uint64_t session_id; | |
fc5e05b7 | 720 | } LTTNG_PACKED data_pending; |
ffe60014 | 721 | struct { |
d0b96690 DG |
722 | uint64_t subbuf_size; /* bytes */ |
723 | uint64_t num_subbuf; /* power of 2 */ | |
d88aee68 DG |
724 | int32_t overwrite; /* 1: overwrite, 0: discard */ |
725 | uint32_t switch_timer_interval; /* usec */ | |
726 | uint32_t read_timer_interval; /* usec */ | |
e9404c27 | 727 | unsigned int live_timer_interval; /* usec */ |
a2814ea7 | 728 | uint8_t is_live; /* is part of a live session */ |
e9404c27 | 729 | uint32_t monitor_timer_interval; /* usec */ |
d88aee68 DG |
730 | int32_t output; /* splice, mmap */ |
731 | int32_t type; /* metadata or per_cpu */ | |
d0b96690 DG |
732 | uint64_t session_id; /* Tracing session id */ |
733 | char pathname[PATH_MAX]; /* Channel file path. */ | |
ffe60014 | 734 | char name[LTTNG_SYMBOL_NAME_LEN]; /* Channel name. */ |
d2956687 JG |
735 | /* Credentials used to open the UST buffer shared mappings. */ |
736 | struct { | |
737 | uint32_t uid; | |
738 | uint32_t gid; | |
739 | } LTTNG_PACKED buffer_credentials; | |
d88aee68 DG |
740 | uint64_t relayd_id; /* Relayd id if apply. */ |
741 | uint64_t key; /* Unique channel key. */ | |
d2956687 | 742 | /* ID of the session's current trace chunk. */ |
0a30bf9b | 743 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id; |
c70636a7 | 744 | unsigned char uuid[LTTNG_UUID_LEN]; /* uuid for ust tracer. */ |
7972aab2 | 745 | uint32_t chan_id; /* Channel ID on the tracer side. */ |
1624d5b7 JD |
746 | uint64_t tracefile_size; /* bytes */ |
747 | uint32_t tracefile_count; /* number of tracefiles */ | |
1950109e | 748 | uint64_t session_id_per_pid; /* Per-pid session ID. */ |
2bba9e53 DG |
749 | /* Tells the consumer if the stream should be or not monitored. */ |
750 | uint32_t monitor; | |
567eb353 DG |
751 | /* |
752 | * For UST per UID buffers, this is the application UID of the | |
753 | * channel. This can be different from the user UID requesting the | |
754 | * channel creation and used for the rights on the stream file | |
755 | * because the application can be in the tracing for instance. | |
756 | */ | |
757 | uint32_t ust_app_uid; | |
491d1539 | 758 | int64_t blocking_timeout; |
3d071855 | 759 | char root_shm_path[PATH_MAX]; |
d7ba1388 | 760 | char shm_path[PATH_MAX]; |
ffe60014 DG |
761 | } LTTNG_PACKED ask_channel; |
762 | struct { | |
d88aee68 | 763 | uint64_t key; |
ffe60014 DG |
764 | } LTTNG_PACKED get_channel; |
765 | struct { | |
d88aee68 | 766 | uint64_t key; |
ffe60014 | 767 | } LTTNG_PACKED destroy_channel; |
d88aee68 DG |
768 | struct { |
769 | uint64_t key; /* Metadata channel key. */ | |
770 | uint64_t target_offset; /* Offset in the consumer */ | |
771 | uint64_t len; /* Length of metadata to be received. */ | |
93ec662e | 772 | uint64_t version; /* Version of the metadata. */ |
d88aee68 DG |
773 | } LTTNG_PACKED push_metadata; |
774 | struct { | |
775 | uint64_t key; /* Metadata channel key. */ | |
776 | } LTTNG_PACKED close_metadata; | |
777 | struct { | |
778 | uint64_t key; /* Metadata channel key. */ | |
779 | } LTTNG_PACKED setup_metadata; | |
7972aab2 DG |
780 | struct { |
781 | uint64_t key; /* Channel key. */ | |
782 | } LTTNG_PACKED flush_channel; | |
0dd01979 MD |
783 | struct { |
784 | uint64_t key; /* Channel key. */ | |
785 | } LTTNG_PACKED clear_quiescent_channel; | |
6dc3064a DG |
786 | struct { |
787 | char pathname[PATH_MAX]; | |
788 | /* Indicate if the snapshot goes on the relayd or locally. */ | |
789 | uint32_t use_relayd; | |
790 | uint32_t metadata; /* This a metadata snapshot. */ | |
791 | uint64_t relayd_id; /* Relayd id if apply. */ | |
792 | uint64_t key; | |
d07ceecd | 793 | uint64_t nb_packets_per_stream; |
6dc3064a | 794 | } LTTNG_PACKED snapshot_channel; |
a4baae1b JD |
795 | struct { |
796 | uint64_t channel_key; | |
797 | uint64_t net_seq_idx; | |
798 | } LTTNG_PACKED sent_streams; | |
fb83fe64 JD |
799 | struct { |
800 | uint64_t session_id; | |
801 | uint64_t channel_key; | |
802 | } LTTNG_PACKED discarded_events; | |
803 | struct { | |
804 | uint64_t session_id; | |
805 | uint64_t channel_key; | |
806 | } LTTNG_PACKED lost_packets; | |
93ec662e JD |
807 | struct { |
808 | uint64_t session_id; | |
eded6438 | 809 | } LTTNG_PACKED regenerate_metadata; |
b99a8d42 | 810 | struct { |
b99a8d42 JD |
811 | uint32_t metadata; /* This is a metadata channel. */ |
812 | uint64_t relayd_id; /* Relayd id if apply. */ | |
813 | uint64_t key; | |
b99a8d42 | 814 | } LTTNG_PACKED rotate_channel; |
92816cc3 JG |
815 | struct { |
816 | uint64_t session_id; | |
817 | uint64_t chunk_id; | |
818 | } LTTNG_PACKED check_rotation_pending_local; | |
d88744a4 JD |
819 | struct { |
820 | uint64_t relayd_id; | |
821 | uint64_t session_id; | |
822 | uint64_t chunk_id; | |
92816cc3 | 823 | } LTTNG_PACKED check_rotation_pending_relay; |
a1ae2ea5 | 824 | struct { |
d2956687 JG |
825 | /* |
826 | * Relayd id, if applicable (remote). | |
827 | * | |
828 | * A directory file descriptor referring to the chunk's | |
829 | * output folder is transmitted if the chunk is local | |
830 | * (relayd_id unset). | |
831 | * | |
832 | * `override_name` is left NULL (all-zeroes) if the | |
913a542b | 833 | * chunk's name is not overridden. |
d2956687 | 834 | */ |
0a30bf9b | 835 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
d2956687 JG |
836 | char override_name[LTTNG_NAME_MAX]; |
837 | uint64_t session_id; | |
838 | uint64_t chunk_id; | |
839 | uint64_t creation_timestamp; | |
e5add6d0 | 840 | LTTNG_OPTIONAL_COMM(struct { |
d2956687 JG |
841 | uint32_t uid; |
842 | uint32_t gid; | |
e5add6d0 | 843 | } LTTNG_PACKED ) LTTNG_PACKED credentials; |
d2956687 JG |
844 | } LTTNG_PACKED create_trace_chunk; |
845 | struct { | |
0a30bf9b | 846 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
d2956687 JG |
847 | uint64_t session_id; |
848 | uint64_t chunk_id; | |
849 | uint64_t close_timestamp; | |
bbc4768c JG |
850 | /* enum lttng_trace_chunk_command_type */ |
851 | LTTNG_OPTIONAL_COMM(uint32_t) LTTNG_PACKED close_command; | |
d2956687 JG |
852 | } LTTNG_PACKED close_trace_chunk; |
853 | struct { | |
0a30bf9b | 854 | LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id; |
a1ae2ea5 | 855 | uint64_t session_id; |
d2956687 JG |
856 | uint64_t chunk_id; |
857 | } LTTNG_PACKED trace_chunk_exists; | |
858 | struct { | |
859 | lttng_uuid sessiond_uuid; | |
860 | } LTTNG_PACKED init; | |
b01b201a MD |
861 | struct { |
862 | uint64_t key; | |
863 | } LTTNG_PACKED clear_channel; | |
04ed9e10 JG |
864 | struct { |
865 | uint64_t key; | |
866 | } LTTNG_PACKED open_channel_packets; | |
3bd1e081 | 867 | } u; |
fc5e05b7 | 868 | } LTTNG_PACKED; |
6e3805e2 | 869 | |
e9404c27 JG |
870 | /* |
871 | * Channel monitoring message returned to the session daemon on every | |
872 | * monitor timer expiration. | |
873 | */ | |
874 | struct lttcomm_consumer_channel_monitor_msg { | |
875 | /* Key of the sampled channel. */ | |
876 | uint64_t key; | |
877 | /* | |
878 | * Lowest and highest usage (bytes) at the moment the sample was taken. | |
879 | */ | |
880 | uint64_t lowest, highest; | |
e8360425 JD |
881 | /* |
882 | * Sum of all the consumed positions for a channel. | |
883 | */ | |
884 | uint64_t total_consumed; | |
e9404c27 JG |
885 | } LTTNG_PACKED; |
886 | ||
f50f23d9 DG |
887 | /* |
888 | * Status message returned to the sessiond after a received command. | |
889 | */ | |
890 | struct lttcomm_consumer_status_msg { | |
0c759fc9 | 891 | enum lttcomm_return_code ret_code; |
fc5e05b7 | 892 | } LTTNG_PACKED; |
f50f23d9 | 893 | |
ffe60014 | 894 | struct lttcomm_consumer_status_channel { |
0c759fc9 | 895 | enum lttcomm_return_code ret_code; |
d88aee68 | 896 | uint64_t key; |
ffe60014 DG |
897 | unsigned int stream_count; |
898 | } LTTNG_PACKED; | |
899 | ||
ecd1a12f MD |
900 | struct lttcomm_consumer_close_trace_chunk_reply { |
901 | enum lttcomm_return_code ret_code; | |
902 | uint32_t path_length; | |
903 | char path[]; | |
904 | }; | |
905 | ||
51791532 JG |
906 | #ifdef HAVE_LIBLTTNG_UST_CTL |
907 | ||
9df8df5e | 908 | #include <lttng/ust-abi.h> |
6e3805e2 | 909 | |
3817e7df DG |
910 | /* |
911 | * Data structure for the commands sent from sessiond to UST. | |
912 | */ | |
913 | struct lttcomm_ust_msg { | |
3817e7df DG |
914 | uint32_t handle; |
915 | uint32_t cmd; | |
916 | union { | |
fc4b93fa MD |
917 | struct lttng_ust_abi_channel channel; |
918 | struct lttng_ust_abi_stream stream; | |
919 | struct lttng_ust_abi_event event; | |
920 | struct lttng_ust_abi_context context; | |
921 | struct lttng_ust_abi_tracer_version version; | |
3817e7df | 922 | } u; |
fc5e05b7 | 923 | } LTTNG_PACKED; |
3817e7df DG |
924 | |
925 | /* | |
926 | * Data structure for the response from UST to the session daemon. | |
927 | * cmd_type is sent back in the reply for validation. | |
928 | */ | |
929 | struct lttcomm_ust_reply { | |
930 | uint32_t handle; | |
931 | uint32_t cmd; | |
932 | uint32_t ret_code; /* enum lttcomm_return_code */ | |
933 | uint32_t ret_val; /* return value */ | |
934 | union { | |
2b0bf864 DG |
935 | struct { |
936 | uint64_t memory_map_size; | |
fc5e05b7 | 937 | } LTTNG_PACKED channel; |
2b0bf864 DG |
938 | struct { |
939 | uint64_t memory_map_size; | |
fc5e05b7 | 940 | } LTTNG_PACKED stream; |
fc4b93fa | 941 | struct lttng_ust_abi_tracer_version version; |
3817e7df | 942 | } u; |
fc5e05b7 | 943 | } LTTNG_PACKED; |
3817e7df | 944 | |
74d0b642 | 945 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 946 | |
ca806b0b | 947 | const char *lttcomm_get_readable_code(enum lttcomm_return_code code); |
fac6795d | 948 | |
ca806b0b | 949 | int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr, |
6364a07a | 950 | const char *ip, unsigned int port); |
ca806b0b | 951 | int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr, |
6364a07a DG |
952 | const char *ip, unsigned int port); |
953 | ||
ca806b0b SM |
954 | struct lttcomm_sock *lttcomm_alloc_sock(enum lttcomm_sock_proto proto); |
955 | int lttcomm_create_sock(struct lttcomm_sock *sock); | |
956 | struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri); | |
957 | void lttcomm_destroy_sock(struct lttcomm_sock *sock); | |
958 | struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src); | |
959 | void lttcomm_copy_sock(struct lttcomm_sock *dst, | |
de5e9086 | 960 | struct lttcomm_sock *src); |
6364a07a | 961 | |
6151a90f | 962 | /* Relayd socket object. */ |
ca806b0b | 963 | struct lttcomm_relayd_sock *lttcomm_alloc_relayd_sock( |
6151a90f JD |
964 | struct lttng_uri *uri, uint32_t major, uint32_t minor); |
965 | ||
ca806b0b SM |
966 | int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec); |
967 | int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec); | |
783a3b9a | 968 | |
ca806b0b | 969 | int lttcomm_sock_get_port(const struct lttcomm_sock *sock, |
2288467f JG |
970 | uint16_t *port); |
971 | /* | |
972 | * Set a port to an lttcomm_sock. This will have no effect is the socket is | |
973 | * already bound. | |
974 | */ | |
ca806b0b | 975 | int lttcomm_sock_set_port(struct lttcomm_sock *sock, uint16_t port); |
2288467f | 976 | |
ca806b0b | 977 | void lttcomm_init(void); |
554831e7 | 978 | /* Get network timeout, in milliseconds */ |
ca806b0b | 979 | unsigned long lttcomm_get_network_timeout(void); |
554831e7 | 980 | |
773168b7 | 981 | #endif /* _LTTNG_SESSIOND_COMM_H */ |