Commit | Line | Data |
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91d76f53 DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
91d76f53 DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
91d76f53 DG |
16 | */ |
17 | ||
f6a9efaa DG |
18 | #ifndef _LTT_UST_APP_H |
19 | #define _LTT_UST_APP_H | |
91d76f53 | 20 | |
099e26bd | 21 | #include <stdint.h> |
1e307fab | 22 | |
44d3bd01 DG |
23 | #include "trace-ust.h" |
24 | ||
e0c7ec2b | 25 | /* lttng-ust supported version. */ |
3f2c5fcc | 26 | #define LTTNG_UST_COMM_MAJOR 2 /* comm protocol major version */ |
68264071 | 27 | #define UST_APP_MAJOR_VERSION 3 /* Internal UST version supported */ |
e0c7ec2b | 28 | |
b551a063 DG |
29 | #define UST_APP_EVENT_LIST_SIZE 32 |
30 | ||
53a80697 MD |
31 | struct lttng_filter_bytecode; |
32 | struct lttng_ust_filter_bytecode; | |
33 | ||
7753dea8 | 34 | extern int ust_consumerd64_fd, ust_consumerd32_fd; |
ba5d816e | 35 | |
18eace3b DG |
36 | struct ust_app_ht_key { |
37 | const char *name; | |
38 | const struct lttng_ust_filter_bytecode *filter; | |
39 | enum lttng_ust_loglevel_type loglevel; | |
40 | }; | |
41 | ||
099e26bd DG |
42 | /* |
43 | * Application registration data structure. | |
44 | */ | |
45 | struct ust_register_msg { | |
46 | uint32_t major; | |
47 | uint32_t minor; | |
48 | pid_t pid; | |
49 | pid_t ppid; | |
50 | uid_t uid; | |
51 | gid_t gid; | |
0df502fd | 52 | uint32_t bits_per_long; |
099e26bd DG |
53 | char name[16]; |
54 | }; | |
55 | ||
48842b30 | 56 | /* |
852d0037 DG |
57 | * Global applications HT used by the session daemon. This table is indexed by |
58 | * PID using the pid_n node and pid value of an ust_app. | |
48842b30 | 59 | */ |
bec39940 | 60 | struct lttng_ht *ust_app_ht; |
f6a9efaa | 61 | |
852d0037 DG |
62 | /* |
63 | * Global applications HT used by the session daemon. This table is indexed by | |
64 | * socket using the sock_n node and sock value of an ust_app. | |
65 | */ | |
66 | struct lttng_ht *ust_app_ht_by_sock; | |
91d76f53 | 67 | |
030a66fa DG |
68 | /* Stream list containing ust_app_stream. */ |
69 | struct ust_app_stream_list { | |
70 | unsigned int count; | |
71 | struct cds_list_head head; | |
72 | }; | |
73 | ||
55cc08a6 DG |
74 | struct ust_app_ctx { |
75 | int handle; | |
76 | struct lttng_ust_context ctx; | |
77 | struct lttng_ust_object_data *obj; | |
bec39940 | 78 | struct lttng_ht_node_ulong node; |
55cc08a6 DG |
79 | }; |
80 | ||
48842b30 DG |
81 | struct ust_app_event { |
82 | int enabled; | |
83 | int handle; | |
13161846 | 84 | struct lttng_ust_object_data *obj; |
284d8f55 | 85 | struct lttng_ust_event attr; |
48842b30 | 86 | char name[LTTNG_UST_SYM_NAME_LEN]; |
bec39940 | 87 | struct lttng_ht_node_str node; |
53a80697 | 88 | struct lttng_ust_filter_bytecode *filter; |
48842b30 DG |
89 | }; |
90 | ||
030a66fa DG |
91 | struct ust_app_stream { |
92 | int handle; | |
93 | char pathname[PATH_MAX]; | |
94 | /* Format is %s_%d respectively channel name and CPU number. */ | |
95 | char name[DEFAULT_STREAM_NAME_LEN]; | |
96 | struct lttng_ust_object_data *obj; | |
97 | /* Using a list of streams to keep order. */ | |
98 | struct cds_list_head list; | |
99 | }; | |
100 | ||
48842b30 DG |
101 | struct ust_app_channel { |
102 | int enabled; | |
103 | int handle; | |
104 | char name[LTTNG_UST_SYM_NAME_LEN]; | |
2fe6e7f5 | 105 | struct lttng_ust_channel_attr attr; |
13161846 | 106 | struct lttng_ust_object_data *obj; |
030a66fa | 107 | struct ust_app_stream_list streams; |
bec39940 DG |
108 | struct lttng_ht *ctx; |
109 | struct lttng_ht *events; | |
110 | struct lttng_ht_node_str node; | |
48842b30 DG |
111 | }; |
112 | ||
113 | struct ust_app_session { | |
114 | int enabled; | |
8be98f9a MD |
115 | /* started: has the session been in started state at any time ? */ |
116 | int started; /* allows detection of start vs restart. */ | |
a991f516 MD |
117 | int handle; /* used has unique identifier for app session */ |
118 | int id; /* session unique identifier */ | |
48842b30 | 119 | struct ltt_ust_metadata *metadata; |
bec39940 DG |
120 | struct lttng_ht *channels; /* Registered channels */ |
121 | struct lttng_ht_node_ulong node; | |
122 | char path[PATH_MAX]; | |
6df2e2c9 MD |
123 | /* UID/GID of the user owning the session */ |
124 | uid_t uid; | |
125 | gid_t gid; | |
d42f20df | 126 | struct cds_list_head teardown_node; |
48842b30 DG |
127 | }; |
128 | ||
f6a9efaa DG |
129 | /* |
130 | * Registered traceable applications. Libust registers to the session daemon | |
050349bb | 131 | * and a linked list is kept of all running traceable app. |
91d76f53 | 132 | */ |
56fff090 | 133 | struct ust_app { |
852d0037 DG |
134 | int sock; |
135 | pid_t pid; | |
099e26bd DG |
136 | pid_t ppid; |
137 | uid_t uid; /* User ID that owns the apps */ | |
aea829b3 | 138 | gid_t gid; /* Group ID that owns the apps */ |
7753dea8 | 139 | int bits_per_long; |
e0c7ec2b DG |
140 | int compatible; /* If the lttng-ust tracer version does not match the |
141 | supported version of the session daemon, this flag is | |
142 | set to 0 (NOT compatible) else 1. */ | |
143 | struct lttng_ust_tracer_version version; | |
099e26bd DG |
144 | uint32_t v_major; /* Verion major number */ |
145 | uint32_t v_minor; /* Verion minor number */ | |
146 | char name[17]; /* Process name (short) */ | |
bec39940 | 147 | struct lttng_ht *sessions; |
852d0037 DG |
148 | struct lttng_ht_node_ulong pid_n; |
149 | struct lttng_ht_node_ulong sock_n; | |
d42f20df DG |
150 | /* |
151 | * This is a list of ust app session that, once the app is going into | |
152 | * teardown mode, in the RCU call, each node in this list is removed and | |
153 | * deleted. | |
154 | * | |
155 | * Element of the list are added when an application unregisters after each | |
156 | * ht_del of ust_app_session associated to this app. This list is NOT used | |
157 | * when a session is destroyed. | |
158 | */ | |
159 | struct cds_list_head teardown_head; | |
91d76f53 DG |
160 | }; |
161 | ||
74d0b642 | 162 | #ifdef HAVE_LIBLTTNG_UST_CTL |
3bd1e081 | 163 | |
56fff090 | 164 | int ust_app_register(struct ust_register_msg *msg, int sock); |
f2ca2e25 GF |
165 | static inline |
166 | int ust_app_register_done(int sock) | |
167 | { | |
168 | return ustctl_register_done(sock); | |
169 | } | |
56fff090 | 170 | void ust_app_unregister(int sock); |
f6a9efaa | 171 | unsigned long ust_app_list_count(void); |
421cb601 | 172 | int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app); |
8be98f9a | 173 | int ust_app_stop_trace(struct ltt_ust_session *usess, struct ust_app *app); |
421cb601 | 174 | int ust_app_start_trace_all(struct ltt_ust_session *usess); |
8be98f9a | 175 | int ust_app_stop_trace_all(struct ltt_ust_session *usess); |
84cd17c6 | 176 | int ust_app_destroy_trace_all(struct ltt_ust_session *usess); |
b551a063 | 177 | int ust_app_list_events(struct lttng_event **events); |
f37d259d | 178 | int ust_app_list_event_fields(struct lttng_event_field **fields); |
35a9059d DG |
179 | int ust_app_create_channel_glb(struct ltt_ust_session *usess, |
180 | struct ltt_ust_channel *uchan); | |
181 | int ust_app_create_event_glb(struct ltt_ust_session *usess, | |
182 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); | |
7f79d3a1 DG |
183 | int ust_app_disable_event_pid(struct ltt_ust_session *usess, |
184 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent, | |
185 | pid_t pid); | |
76d45b40 DG |
186 | int ust_app_enable_event_pid(struct ltt_ust_session *usess, |
187 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent, | |
188 | pid_t pid); | |
35a9059d | 189 | int ust_app_disable_channel_glb(struct ltt_ust_session *usess, |
78f0bacd | 190 | struct ltt_ust_channel *uchan); |
35a9059d | 191 | int ust_app_enable_channel_glb(struct ltt_ust_session *usess, |
78f0bacd | 192 | struct ltt_ust_channel *uchan); |
35a9059d | 193 | int ust_app_enable_event_glb(struct ltt_ust_session *usess, |
edb67388 | 194 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); |
35a9059d DG |
195 | int ust_app_disable_all_event_glb(struct ltt_ust_session *usess, |
196 | struct ltt_ust_channel *uchan); | |
197 | int ust_app_enable_all_event_glb(struct ltt_ust_session *usess, | |
9730260e | 198 | struct ltt_ust_channel *uchan); |
35a9059d DG |
199 | int ust_app_disable_event_glb(struct ltt_ust_session *usess, |
200 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); | |
55cc08a6 DG |
201 | int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess, |
202 | struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx); | |
487cf67c | 203 | void ust_app_global_update(struct ltt_ust_session *usess, int sock); |
91d76f53 | 204 | |
56fff090 | 205 | void ust_app_clean_list(void); |
f6a9efaa | 206 | void ust_app_ht_alloc(void); |
bec39940 | 207 | struct lttng_ht *ust_app_get_ht(void); |
f6a9efaa | 208 | struct ust_app *ust_app_find_by_pid(pid_t pid); |
e0c7ec2b | 209 | int ust_app_validate_version(int sock); |
4466912f | 210 | int ust_app_calibrate_glb(struct lttng_ust_calibrate *calibrate); |
44d3bd01 | 211 | |
74d0b642 | 212 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 213 | |
cc920def DG |
214 | static inline |
215 | int ust_app_destroy_trace_all(struct ltt_ust_session *usess) | |
216 | { | |
217 | return 0; | |
218 | } | |
d974f197 | 219 | static inline |
421cb601 DG |
220 | int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app) |
221 | { | |
222 | return 0; | |
223 | } | |
224 | static inline | |
225 | int ust_app_start_trace_all(struct ltt_ust_session *usess) | |
d974f197 | 226 | { |
5cf5d0e7 | 227 | return 0; |
d974f197 | 228 | } |
3bd1e081 | 229 | static inline |
cc920def DG |
230 | int ust_app_stop_trace_all(struct ltt_ust_session *usess) |
231 | { | |
232 | return 0; | |
233 | } | |
234 | static inline | |
b551a063 DG |
235 | int ust_app_list_events(struct lttng_event **events) |
236 | { | |
db7c0497 | 237 | return -ENOSYS; |
b551a063 DG |
238 | } |
239 | static inline | |
da0bdb87 MD |
240 | int ust_app_list_event_fields(struct lttng_event_field **fields) |
241 | { | |
242 | return -ENOSYS; | |
243 | } | |
244 | static inline | |
3bd1e081 MD |
245 | int ust_app_register(struct ust_register_msg *msg, int sock) |
246 | { | |
247 | return -ENOSYS; | |
248 | } | |
249 | static inline | |
f2ca2e25 GF |
250 | int ust_app_register_done(int sock) |
251 | { | |
252 | return -ENOSYS; | |
253 | } | |
254 | static inline | |
3bd1e081 MD |
255 | void ust_app_unregister(int sock) |
256 | { | |
257 | } | |
258 | static inline | |
259 | unsigned int ust_app_list_count(void) | |
260 | { | |
261 | return 0; | |
262 | } | |
3bd1e081 MD |
263 | static inline |
264 | void ust_app_lock_list(void) | |
265 | { | |
266 | } | |
267 | static inline | |
268 | void ust_app_unlock_list(void) | |
269 | { | |
270 | } | |
271 | static inline | |
272 | void ust_app_clean_list(void) | |
273 | { | |
274 | } | |
275 | static inline | |
276 | struct ust_app_list *ust_app_get_list(void) | |
277 | { | |
278 | return NULL; | |
279 | } | |
280 | static inline | |
281 | struct ust_app *ust_app_get_by_pid(pid_t pid) | |
282 | { | |
283 | return NULL; | |
284 | } | |
48842b30 | 285 | static inline |
bec39940 | 286 | struct lttng_ht *ust_app_get_ht(void) |
d974f197 DG |
287 | { |
288 | return NULL; | |
289 | } | |
290 | static inline | |
291 | void ust_app_ht_alloc(void) | |
cc920def DG |
292 | {} |
293 | static inline | |
294 | void ust_app_global_update(struct ltt_ust_session *usess, int sock) | |
295 | {} | |
296 | static inline | |
35a9059d | 297 | int ust_app_disable_channel_glb(struct ltt_ust_session *usess, |
cc920def | 298 | struct ltt_ust_channel *uchan) |
d974f197 | 299 | { |
cc920def | 300 | return 0; |
d974f197 | 301 | } |
487cf67c | 302 | static inline |
35a9059d | 303 | int ust_app_enable_channel_glb(struct ltt_ust_session *usess, |
cc920def | 304 | struct ltt_ust_channel *uchan) |
487cf67c | 305 | { |
cc920def DG |
306 | return 0; |
307 | } | |
308 | static inline | |
35a9059d | 309 | int ust_app_create_channel_glb(struct ltt_ust_session *usess, |
cc920def DG |
310 | struct ltt_ust_channel *uchan) |
311 | { | |
312 | return 0; | |
313 | } | |
314 | static inline | |
35a9059d DG |
315 | int ust_app_disable_all_event_glb(struct ltt_ust_session *usess, |
316 | struct ltt_ust_channel *uchan) | |
cc920def DG |
317 | { |
318 | return 0; | |
319 | } | |
320 | static inline | |
35a9059d | 321 | int ust_app_enable_all_event_glb(struct ltt_ust_session *usess, |
cc920def DG |
322 | struct ltt_ust_channel *uchan) |
323 | { | |
324 | return 0; | |
325 | } | |
326 | static inline | |
35a9059d DG |
327 | int ust_app_create_event_glb(struct ltt_ust_session *usess, |
328 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent) | |
329 | { | |
330 | return 0; | |
331 | } | |
332 | static inline | |
333 | int ust_app_disable_event_glb(struct ltt_ust_session *usess, | |
cc920def DG |
334 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent) |
335 | { | |
336 | return 0; | |
487cf67c | 337 | } |
edb67388 | 338 | static inline |
35a9059d | 339 | int ust_app_enable_event_glb(struct ltt_ust_session *usess, |
edb67388 DG |
340 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent) |
341 | { | |
342 | return 0; | |
343 | } | |
55cc08a6 | 344 | static inline |
55cc08a6 DG |
345 | int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess, |
346 | struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx) | |
347 | { | |
348 | return 0; | |
349 | } | |
76d45b40 DG |
350 | static inline |
351 | int ust_app_enable_event_pid(struct ltt_ust_session *usess, | |
352 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent, | |
353 | pid_t pid) | |
354 | { | |
355 | return 0; | |
356 | } | |
7f79d3a1 DG |
357 | static inline |
358 | int ust_app_disable_event_pid(struct ltt_ust_session *usess, | |
359 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent, | |
360 | pid_t pid) | |
361 | { | |
362 | return 0; | |
363 | } | |
e0c7ec2b DG |
364 | static inline |
365 | int ust_app_validate_version(int sock) | |
366 | { | |
367 | return 0; | |
368 | } | |
4466912f DG |
369 | static inline |
370 | int ust_app_calibrate_glb(struct lttng_ust_calibrate *calibrate) | |
371 | { | |
372 | return 0; | |
373 | } | |
48842b30 | 374 | |
74d0b642 | 375 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 376 | |
f6a9efaa | 377 | #endif /* _LTT_UST_APP_H */ |