Commit | Line | Data |
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ccf10263 MD |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * Copyright (C) 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License, version 2 only, | |
7 | * as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
ccf10263 MD |
19 | #define _LGPL_SOURCE |
20 | #include <ctype.h> | |
21 | #include <popt.h> | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <sys/stat.h> | |
26 | #include <sys/types.h> | |
27 | #include <unistd.h> | |
3ecec76a | 28 | #include <assert.h> |
ccf10263 MD |
29 | |
30 | #include <urcu/list.h> | |
31 | ||
32 | #include <common/mi-lttng.h> | |
33 | ||
34 | #include "../command.h" | |
35 | ||
36 | enum cmd_type { | |
37 | CMD_TRACK, | |
38 | CMD_UNTRACK, | |
39 | }; | |
40 | ||
83d6d6c4 JR |
41 | enum tracker_type_state { |
42 | STATE_NONE = 0, | |
43 | STATE_PID, | |
44 | STATE_VPID, | |
45 | STATE_UID, | |
46 | STATE_VUID, | |
47 | STATE_GID, | |
48 | STATE_VGID, | |
49 | }; | |
50 | ||
51 | struct opt_type { | |
52 | int used; | |
53 | int all; | |
54 | char *string; | |
55 | }; | |
56 | ||
57 | struct id_list { | |
58 | size_t nr; | |
2d97a006 | 59 | struct lttng_tracker_id **array; |
83d6d6c4 JR |
60 | }; |
61 | ||
ccf10263 MD |
62 | static char *opt_session_name; |
63 | static int opt_kernel; | |
64 | static int opt_userspace; | |
83d6d6c4 JR |
65 | |
66 | static struct opt_type opt_pid, opt_vpid, opt_uid, opt_vuid, opt_gid, opt_vgid; | |
67 | ||
68 | static enum tracker_type_state type_state; | |
ccf10263 MD |
69 | |
70 | enum { | |
71 | OPT_HELP = 1, | |
72 | OPT_LIST_OPTIONS, | |
73 | OPT_SESSION, | |
74 | OPT_PID, | |
83d6d6c4 JR |
75 | OPT_VPID, |
76 | OPT_UID, | |
77 | OPT_VUID, | |
78 | OPT_GID, | |
79 | OPT_VGID, | |
80 | OPT_ALL, | |
ccf10263 MD |
81 | }; |
82 | ||
83 | static struct poptOption long_options[] = { | |
84 | /* { longName, shortName, argInfo, argPtr, value, descrip, argDesc, } */ | |
85 | { "help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0, }, | |
86 | { "session", 's', POPT_ARG_STRING, &opt_session_name, OPT_SESSION, 0, 0, }, | |
87 | { "kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0, }, | |
88 | { "userspace", 'u', POPT_ARG_VAL, &opt_userspace, 1, 0, 0, }, | |
83d6d6c4 JR |
89 | { "pid", 'p', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_pid.string, OPT_PID, 0, 0, }, |
90 | { "vpid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vpid.string, OPT_VPID, 0, 0, }, | |
91 | { "uid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_uid.string, OPT_UID, 0, 0, }, | |
92 | { "vuid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vuid.string, OPT_VUID, 0, 0, }, | |
93 | { "gid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_gid.string, OPT_GID, 0, 0, }, | |
94 | { "vgid", 0, POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_vgid.string, OPT_VGID, 0, 0, }, | |
95 | { "all", 'a', POPT_ARG_NONE, 0, OPT_ALL, 0, 0, }, | |
ccf10263 MD |
96 | { "list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, 0, 0, }, |
97 | { 0, 0, 0, 0, 0, 0, 0, }, | |
98 | }; | |
99 | ||
83d6d6c4 | 100 | static struct id_list *alloc_id_list(size_t nr_items) |
ccf10263 | 101 | { |
83d6d6c4 | 102 | struct id_list *id_list; |
2d97a006 | 103 | struct lttng_tracker_id **items; |
83d6d6c4 JR |
104 | |
105 | id_list = zmalloc(sizeof(*id_list)); | |
106 | if (!id_list) { | |
107 | goto error; | |
108 | } | |
109 | items = zmalloc(nr_items * sizeof(*items)); | |
110 | if (!items) { | |
111 | goto error; | |
112 | } | |
113 | id_list->nr = nr_items; | |
114 | id_list->array = items; | |
115 | return id_list; | |
116 | error: | |
117 | free(id_list); | |
118 | return NULL; | |
119 | } | |
120 | ||
121 | static void free_id_list(struct id_list *list) | |
122 | { | |
123 | size_t nr_items; | |
124 | int i; | |
125 | ||
126 | if (!list) { | |
127 | return; | |
128 | } | |
129 | nr_items = list->nr; | |
130 | for (i = 0; i < nr_items; i++) { | |
2d97a006 JR |
131 | struct lttng_tracker_id *item = list->array[i]; |
132 | lttng_tracker_id_destroy(item); | |
83d6d6c4 JR |
133 | } |
134 | free(list); | |
135 | } | |
136 | ||
2d97a006 JR |
137 | static int parse_id_string(const char *_id_string, |
138 | int all, | |
139 | struct id_list **_id_list, | |
140 | enum lttng_tracker_type tracker_type) | |
83d6d6c4 JR |
141 | { |
142 | const char *one_id_str; | |
ccf10263 MD |
143 | char *iter; |
144 | int retval = CMD_SUCCESS; | |
145 | int count = 0; | |
83d6d6c4 JR |
146 | struct id_list *id_list = NULL; |
147 | char *id_string = NULL; | |
44c1a903 | 148 | char *endptr; |
ccf10263 | 149 | |
83d6d6c4 JR |
150 | if (all && _id_string) { |
151 | ERR("An empty ID string is expected with --all"); | |
ccf10263 MD |
152 | retval = CMD_ERROR; |
153 | goto error; | |
154 | } | |
83d6d6c4 JR |
155 | if (!all && !_id_string) { |
156 | ERR("An ID string is expected"); | |
ccf10263 MD |
157 | retval = CMD_ERROR; |
158 | goto error; | |
159 | } | |
160 | if (all) { | |
2d97a006 JR |
161 | enum lttng_tracker_id_status status; |
162 | /* Empty `ID string means all IDs */ | |
83d6d6c4 JR |
163 | id_list = alloc_id_list(1); |
164 | if (!id_list) { | |
ccf10263 MD |
165 | ERR("Out of memory"); |
166 | retval = CMD_ERROR; | |
167 | goto error; | |
168 | } | |
2d97a006 JR |
169 | |
170 | id_list->array[0] = lttng_tracker_id_create(); | |
171 | if (id_list->array[0] == NULL) { | |
172 | ERR("Out of memory"); | |
173 | retval = CMD_ERROR; | |
174 | goto error; | |
175 | } | |
176 | ||
177 | status = lttng_tracker_id_set_all(id_list->array[0]); | |
178 | if (status != LTTNG_TRACKER_ID_STATUS_OK) { | |
179 | ERR("Invalid value for tracker id"); | |
180 | retval = CMD_ERROR; | |
181 | goto error; | |
182 | } | |
ccf10263 MD |
183 | goto assign; |
184 | } | |
185 | ||
83d6d6c4 JR |
186 | id_string = strdup(_id_string); |
187 | if (!id_string) { | |
ccf10263 MD |
188 | ERR("Out of memory"); |
189 | retval = CMD_ERROR; | |
190 | goto error; | |
191 | } | |
192 | ||
193 | /* Count */ | |
83d6d6c4 JR |
194 | one_id_str = strtok_r(id_string, ",", &iter); |
195 | while (one_id_str != NULL) { | |
ccf10263 MD |
196 | unsigned long v; |
197 | ||
83d6d6c4 JR |
198 | if (isdigit(one_id_str[0])) { |
199 | errno = 0; | |
200 | v = strtoul(one_id_str, &endptr, 10); | |
201 | if ((v == 0 && errno == EINVAL) || | |
202 | (v == ULONG_MAX && errno == ERANGE) || | |
203 | (*one_id_str != '\0' && | |
204 | *endptr != '\0')) { | |
205 | ERR("Error parsing ID %s", one_id_str); | |
206 | retval = CMD_ERROR; | |
207 | goto error; | |
208 | } | |
44c1a903 | 209 | |
83d6d6c4 JR |
210 | if ((long) v > INT_MAX || (int) v < 0) { |
211 | ERR("Invalid ID value %ld", (long) v); | |
212 | retval = CMD_ERROR; | |
213 | goto error; | |
214 | } | |
ccf10263 MD |
215 | } |
216 | count++; | |
217 | ||
218 | /* For next loop */ | |
83d6d6c4 | 219 | one_id_str = strtok_r(NULL, ",", &iter); |
ccf10263 | 220 | } |
dc1c9a44 JG |
221 | if (count == 0) { |
222 | ERR("Fatal error occurred when parsing pid string"); | |
223 | retval = CMD_ERROR; | |
224 | goto error; | |
225 | } | |
ccf10263 | 226 | |
83d6d6c4 | 227 | free(id_string); |
ccf10263 | 228 | /* Identity of delimiter has been lost in first pass. */ |
83d6d6c4 JR |
229 | id_string = strdup(_id_string); |
230 | if (!id_string) { | |
ccf10263 MD |
231 | ERR("Out of memory"); |
232 | retval = CMD_ERROR; | |
233 | goto error; | |
234 | } | |
235 | ||
236 | /* Allocate */ | |
83d6d6c4 JR |
237 | id_list = alloc_id_list(count); |
238 | if (!id_list) { | |
ccf10263 MD |
239 | ERR("Out of memory"); |
240 | retval = CMD_ERROR; | |
241 | goto error; | |
242 | } | |
243 | ||
83d6d6c4 | 244 | /* Reparse string and populate the id list. */ |
ccf10263 | 245 | count = 0; |
83d6d6c4 JR |
246 | one_id_str = strtok_r(id_string, ",", &iter); |
247 | while (one_id_str != NULL) { | |
2d97a006 | 248 | enum lttng_tracker_id_status status; |
83d6d6c4 | 249 | struct lttng_tracker_id *item; |
2d97a006 JR |
250 | item = lttng_tracker_id_create(); |
251 | if (item == NULL) { | |
252 | ERR("Out of memory"); | |
253 | retval = CMD_ERROR; | |
254 | goto error; | |
255 | } | |
ccf10263 | 256 | |
2d97a006 | 257 | id_list->array[count++] = item; |
83d6d6c4 JR |
258 | if (isdigit(one_id_str[0])) { |
259 | unsigned long v; | |
260 | ||
261 | v = strtoul(one_id_str, NULL, 10); | |
2d97a006 JR |
262 | status = lttng_tracker_id_set_value(item, (int) v); |
263 | if (status == LTTNG_TRACKER_ID_STATUS_INVALID) { | |
264 | ERR("Invalid value"); | |
265 | retval = CMD_ERROR; | |
266 | goto error; | |
267 | } | |
83d6d6c4 | 268 | } else { |
2d97a006 JR |
269 | status = lttng_tracker_id_set_string(item, one_id_str); |
270 | if (status == LTTNG_TRACKER_ID_STATUS_INVALID) { | |
271 | ERR("Failed to set ID string"); | |
83d6d6c4 JR |
272 | retval = CMD_ERROR; |
273 | goto error; | |
274 | } | |
275 | } | |
ccf10263 MD |
276 | |
277 | /* For next loop */ | |
83d6d6c4 | 278 | one_id_str = strtok_r(NULL, ",", &iter); |
ccf10263 MD |
279 | } |
280 | ||
281 | assign: | |
2d97a006 | 282 | /* SUCCESS */ |
83d6d6c4 | 283 | *_id_list = id_list; |
2d97a006 | 284 | goto end; |
ccf10263 | 285 | |
ccf10263 | 286 | error: |
2d97a006 | 287 | /* ERROR */ |
83d6d6c4 | 288 | free_id_list(id_list); |
ccf10263 | 289 | end: |
83d6d6c4 | 290 | free(id_string); |
ccf10263 MD |
291 | return retval; |
292 | } | |
293 | ||
83d6d6c4 JR |
294 | static const char *get_tracker_str(enum lttng_tracker_type tracker_type) |
295 | { | |
296 | switch (tracker_type) { | |
297 | case LTTNG_TRACKER_PID: | |
298 | return "PID"; | |
299 | case LTTNG_TRACKER_VPID: | |
300 | return "VPID"; | |
301 | case LTTNG_TRACKER_UID: | |
302 | return "UID"; | |
303 | case LTTNG_TRACKER_VUID: | |
304 | return "VUID"; | |
305 | case LTTNG_TRACKER_GID: | |
306 | return "GID"; | |
307 | case LTTNG_TRACKER_VGID: | |
308 | return "VGID"; | |
309 | default: | |
310 | return NULL; | |
311 | } | |
312 | return NULL; | |
313 | } | |
314 | ||
ef440343 JR |
315 | static int ust_tracker_type_support(enum lttng_tracker_type *tracker_type) |
316 | { | |
317 | int ret; | |
318 | ||
319 | switch (*tracker_type) { | |
320 | case LTTNG_TRACKER_PID: | |
321 | *tracker_type = LTTNG_TRACKER_VPID; | |
322 | ret = 0; | |
323 | break; | |
324 | case LTTNG_TRACKER_VPID: | |
325 | case LTTNG_TRACKER_VUID: | |
326 | case LTTNG_TRACKER_VGID: | |
327 | ret = 0; | |
328 | break; | |
329 | case LTTNG_TRACKER_UID: | |
330 | case LTTNG_TRACKER_GID: | |
331 | ERR("The %s tracker is invalid for UST domain.", | |
332 | get_tracker_str(*tracker_type)); | |
333 | ret = -1; | |
334 | break; | |
335 | default: | |
336 | ret = -1; | |
337 | break; | |
338 | } | |
339 | ||
340 | return ret; | |
341 | } | |
342 | ||
83d6d6c4 JR |
343 | static enum cmd_error_code track_untrack_id(enum cmd_type cmd_type, |
344 | const char *cmd_str, | |
345 | const char *session_name, | |
346 | const char *id_string, | |
347 | int all, | |
348 | struct mi_writer *writer, | |
349 | enum lttng_tracker_type tracker_type) | |
ccf10263 | 350 | { |
c51da673 JG |
351 | int ret, success = 1 , i; |
352 | enum cmd_error_code retval = CMD_SUCCESS; | |
83d6d6c4 | 353 | struct id_list *id_list = NULL; |
ccf10263 MD |
354 | struct lttng_domain dom; |
355 | struct lttng_handle *handle = NULL; | |
83d6d6c4 JR |
356 | int (*cmd_func)(struct lttng_handle *handle, |
357 | enum lttng_tracker_type tracker_type, | |
358 | const struct lttng_tracker_id *id); | |
359 | const char *tracker_str; | |
ccf10263 MD |
360 | |
361 | switch (cmd_type) { | |
362 | case CMD_TRACK: | |
83d6d6c4 | 363 | cmd_func = lttng_track_id; |
ccf10263 MD |
364 | break; |
365 | case CMD_UNTRACK: | |
83d6d6c4 | 366 | cmd_func = lttng_untrack_id; |
ccf10263 MD |
367 | break; |
368 | default: | |
369 | ERR("Unknown command"); | |
370 | retval = CMD_ERROR; | |
371 | goto end; | |
372 | } | |
ccf10263 MD |
373 | memset(&dom, 0, sizeof(dom)); |
374 | if (opt_kernel) { | |
375 | dom.type = LTTNG_DOMAIN_KERNEL; | |
376 | } else if (opt_userspace) { | |
377 | dom.type = LTTNG_DOMAIN_UST; | |
ef440343 JR |
378 | ret = ust_tracker_type_support(&tracker_type); |
379 | if (ret) { | |
380 | ERR("Invalid parameter"); | |
381 | retval = CMD_ERROR; | |
382 | goto end; | |
83d6d6c4 | 383 | } |
ccf10263 | 384 | } else { |
3ecec76a PP |
385 | /* Checked by the caller. */ |
386 | assert(0); | |
ccf10263 | 387 | } |
83d6d6c4 JR |
388 | tracker_str = get_tracker_str(tracker_type); |
389 | if (!tracker_str) { | |
390 | ERR("Unknown tracker type"); | |
391 | retval = CMD_ERROR; | |
392 | goto end; | |
393 | } | |
2d97a006 | 394 | ret = parse_id_string(id_string, all, &id_list, tracker_type); |
ccf10263 | 395 | if (ret != CMD_SUCCESS) { |
83d6d6c4 | 396 | ERR("Error parsing %s string", tracker_str); |
ccf10263 MD |
397 | retval = CMD_ERROR; |
398 | goto end; | |
399 | } | |
400 | ||
401 | handle = lttng_create_handle(session_name, &dom); | |
402 | if (handle == NULL) { | |
403 | retval = CMD_ERROR; | |
404 | goto end; | |
405 | } | |
406 | ||
407 | if (writer) { | |
83d6d6c4 JR |
408 | /* Open tracker_id and targets elements */ |
409 | ret = mi_lttng_id_tracker_open(writer, tracker_type); | |
ccf10263 | 410 | if (ret) { |
ccf10263 MD |
411 | goto end; |
412 | } | |
413 | } | |
414 | ||
83d6d6c4 | 415 | for (i = 0; i < id_list->nr; i++) { |
2d97a006 JR |
416 | struct lttng_tracker_id *item = id_list->array[i]; |
417 | enum lttng_tracker_id_type type = | |
418 | lttng_tracker_id_get_type(item); | |
419 | enum lttng_tracker_id_status status = | |
420 | LTTNG_TRACKER_ID_STATUS_OK; | |
421 | int value; | |
422 | const char *value_string; | |
423 | ||
424 | switch (type) { | |
425 | case LTTNG_ID_ALL: | |
426 | /* Nothing to check */ | |
427 | break; | |
428 | case LTTNG_ID_VALUE: | |
429 | status = lttng_tracker_id_get_value(item, &value); | |
430 | break; | |
431 | case LTTNG_ID_STRING: | |
432 | status = lttng_tracker_id_get_string( | |
433 | item, &value_string); | |
434 | break; | |
435 | default: | |
436 | retval = CMD_ERROR; | |
437 | goto end; | |
438 | } | |
83d6d6c4 | 439 | |
2d97a006 JR |
440 | if (status != LTTNG_TRACKER_ID_STATUS_OK) { |
441 | ERR("Tracker id object is in an invalid state"); | |
442 | retval = CMD_ERROR; | |
443 | goto end; | |
444 | } | |
445 | ||
446 | switch (type) { | |
83d6d6c4 JR |
447 | case LTTNG_ID_ALL: |
448 | DBG("%s all IDs", cmd_str); | |
449 | break; | |
450 | case LTTNG_ID_VALUE: | |
2d97a006 | 451 | DBG("%s ID %d", cmd_str, value); |
83d6d6c4 JR |
452 | break; |
453 | case LTTNG_ID_STRING: | |
2d97a006 | 454 | DBG("%s ID '%s'", cmd_str, value_string); |
83d6d6c4 JR |
455 | break; |
456 | default: | |
457 | retval = CMD_ERROR; | |
458 | goto end; | |
459 | } | |
2d97a006 | 460 | |
83d6d6c4 | 461 | ret = cmd_func(handle, tracker_type, item); |
ccf10263 | 462 | if (ret) { |
83d6d6c4 JR |
463 | char *msg = NULL; |
464 | ||
b93a4a13 | 465 | switch (-ret) { |
83d6d6c4 JR |
466 | case LTTNG_ERR_ID_TRACKED: |
467 | msg = "already tracked"; | |
b93a4a13 MJ |
468 | success = 1; |
469 | retval = CMD_SUCCESS; | |
470 | break; | |
83d6d6c4 JR |
471 | case LTTNG_ERR_ID_NOT_TRACKED: |
472 | msg = "already not tracked"; | |
b93a4a13 MJ |
473 | success = 1; |
474 | retval = CMD_SUCCESS; | |
475 | break; | |
476 | default: | |
477 | ERR("%s", lttng_strerror(ret)); | |
478 | success = 0; | |
479 | retval = CMD_ERROR; | |
480 | break; | |
481 | } | |
83d6d6c4 | 482 | if (msg) { |
2d97a006 | 483 | switch (type) { |
83d6d6c4 JR |
484 | case LTTNG_ID_ALL: |
485 | WARN("All %ss %s in session %s", | |
486 | tracker_str, msg, | |
487 | session_name); | |
488 | break; | |
489 | case LTTNG_ID_VALUE: | |
490 | WARN("%s %i %s in session %s", | |
2d97a006 | 491 | tracker_str, value, msg, |
83d6d6c4 JR |
492 | session_name); |
493 | break; | |
494 | case LTTNG_ID_STRING: | |
495 | WARN("%s '%s' %s in session %s", | |
496 | tracker_str, | |
2d97a006 | 497 | value_string, msg, |
83d6d6c4 JR |
498 | session_name); |
499 | break; | |
500 | default: | |
501 | retval = CMD_ERROR; | |
502 | goto end; | |
503 | } | |
504 | } | |
ebbf5ab7 | 505 | } else { |
2d97a006 | 506 | switch (type) { |
83d6d6c4 JR |
507 | case LTTNG_ID_ALL: |
508 | MSG("All %ss %sed in session %s", tracker_str, | |
efcbc78c | 509 | cmd_str, session_name); |
83d6d6c4 JR |
510 | break; |
511 | case LTTNG_ID_VALUE: | |
512 | MSG("%s %i %sed in session %s", tracker_str, | |
2d97a006 | 513 | value, cmd_str, session_name); |
83d6d6c4 JR |
514 | break; |
515 | case LTTNG_ID_STRING: | |
516 | MSG("%s '%s' %sed in session %s", tracker_str, | |
2d97a006 | 517 | value_string, cmd_str, |
83d6d6c4 JR |
518 | session_name); |
519 | break; | |
520 | default: | |
521 | retval = CMD_ERROR; | |
522 | goto end; | |
efcbc78c | 523 | } |
ebbf5ab7 JR |
524 | success = 1; |
525 | } | |
526 | ||
527 | /* Mi */ | |
528 | if (writer) { | |
83d6d6c4 | 529 | ret = mi_lttng_id_target(writer, tracker_type, item, 1); |
ebbf5ab7 JR |
530 | if (ret) { |
531 | retval = CMD_ERROR; | |
532 | goto end; | |
533 | } | |
534 | ||
535 | ret = mi_lttng_writer_write_element_bool(writer, | |
536 | mi_lttng_element_success, success); | |
537 | if (ret) { | |
538 | retval = CMD_ERROR; | |
539 | goto end; | |
540 | } | |
541 | ||
542 | ret = mi_lttng_writer_close_element(writer); | |
543 | if (ret) { | |
544 | retval = CMD_ERROR; | |
545 | goto end; | |
546 | } | |
ccf10263 MD |
547 | } |
548 | } | |
549 | ||
550 | if (writer) { | |
83d6d6c4 JR |
551 | /* Close targets and tracker_id elements */ |
552 | ret = mi_lttng_close_multi_element(writer, 2); | |
ccf10263 MD |
553 | if (ret) { |
554 | retval = CMD_ERROR; | |
555 | goto end; | |
556 | } | |
557 | } | |
558 | ||
ccf10263 MD |
559 | end: |
560 | if (handle) { | |
561 | lttng_destroy_handle(handle); | |
562 | } | |
83d6d6c4 | 563 | free_id_list(id_list); |
ccf10263 MD |
564 | return retval; |
565 | } | |
566 | ||
567 | static | |
568 | const char *get_mi_element_command(enum cmd_type cmd_type) | |
569 | { | |
570 | switch (cmd_type) { | |
571 | case CMD_TRACK: | |
572 | return mi_lttng_element_command_track; | |
573 | case CMD_UNTRACK: | |
574 | return mi_lttng_element_command_untrack; | |
575 | default: | |
576 | return NULL; | |
577 | } | |
578 | } | |
579 | ||
83d6d6c4 JR |
580 | static void print_err_duplicate(const char *type) |
581 | { | |
582 | ERR("The --%s option can only be used once. A list of comma-separated values can be specified.", | |
583 | type); | |
584 | } | |
585 | ||
ccf10263 MD |
586 | /* |
587 | * Add/remove tracker to/from session. | |
588 | */ | |
589 | static | |
590 | int cmd_track_untrack(enum cmd_type cmd_type, const char *cmd_str, | |
4fc83d94 | 591 | int argc, const char **argv, const char *help_msg) |
ccf10263 | 592 | { |
c51da673 JG |
593 | int opt, ret = 0; |
594 | enum cmd_error_code command_ret = CMD_SUCCESS; | |
ccf10263 MD |
595 | int success = 1; |
596 | static poptContext pc; | |
597 | char *session_name = NULL; | |
598 | struct mi_writer *writer = NULL; | |
599 | ||
600 | if (argc < 1) { | |
c51da673 | 601 | command_ret = CMD_ERROR; |
ccf10263 MD |
602 | goto end; |
603 | } | |
604 | ||
605 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
606 | poptReadDefaultConfig(pc, 0); | |
607 | ||
608 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
609 | switch (opt) { | |
610 | case OPT_HELP: | |
4ba92f18 | 611 | SHOW_HELP(); |
ccf10263 MD |
612 | goto end; |
613 | case OPT_LIST_OPTIONS: | |
614 | list_cmd_options(stdout, long_options); | |
615 | goto end; | |
616 | case OPT_SESSION: | |
83d6d6c4 | 617 | break; |
ccf10263 | 618 | case OPT_PID: |
83d6d6c4 JR |
619 | if (opt_pid.used) { |
620 | print_err_duplicate("pid"); | |
621 | command_ret = CMD_ERROR; | |
622 | goto end; | |
623 | } | |
624 | opt_pid.used = 1; | |
625 | type_state = STATE_PID; | |
626 | break; | |
627 | case OPT_VPID: | |
628 | if (opt_vpid.used) { | |
629 | print_err_duplicate("vpid"); | |
630 | command_ret = CMD_ERROR; | |
631 | goto end; | |
632 | } | |
633 | opt_vpid.used = 1; | |
634 | type_state = STATE_VPID; | |
635 | break; | |
636 | case OPT_UID: | |
637 | if (opt_uid.used) { | |
638 | print_err_duplicate("uid"); | |
639 | command_ret = CMD_ERROR; | |
640 | goto end; | |
641 | } | |
642 | opt_uid.used = 1; | |
643 | type_state = STATE_UID; | |
644 | break; | |
645 | case OPT_VUID: | |
646 | if (opt_vuid.used) { | |
647 | print_err_duplicate("vuid"); | |
648 | command_ret = CMD_ERROR; | |
649 | goto end; | |
650 | } | |
651 | opt_vuid.used = 1; | |
652 | type_state = STATE_VUID; | |
653 | break; | |
654 | case OPT_GID: | |
655 | if (opt_gid.used) { | |
656 | print_err_duplicate("gid"); | |
657 | command_ret = CMD_ERROR; | |
658 | goto end; | |
659 | } | |
660 | opt_gid.used = 1; | |
661 | type_state = STATE_GID; | |
662 | break; | |
663 | case OPT_VGID: | |
664 | if (opt_vgid.used) { | |
665 | print_err_duplicate("vgid"); | |
666 | command_ret = CMD_ERROR; | |
667 | goto end; | |
668 | } | |
669 | opt_vgid.used = 1; | |
670 | type_state = STATE_VGID; | |
671 | break; | |
672 | case OPT_ALL: | |
673 | switch (type_state) { | |
674 | case STATE_PID: | |
675 | opt_pid.all = 1; | |
676 | break; | |
677 | case STATE_VPID: | |
678 | opt_vpid.all = 1; | |
679 | break; | |
680 | case STATE_UID: | |
681 | opt_uid.all = 1; | |
682 | break; | |
683 | case STATE_VUID: | |
684 | opt_vuid.all = 1; | |
685 | break; | |
686 | case STATE_GID: | |
687 | opt_gid.all = 1; | |
688 | break; | |
689 | case STATE_VGID: | |
690 | opt_vgid.all = 1; | |
691 | break; | |
692 | default: | |
693 | command_ret = CMD_ERROR; | |
694 | goto end; | |
695 | } | |
ccf10263 MD |
696 | break; |
697 | default: | |
c51da673 | 698 | command_ret = CMD_UNDEFINED; |
ccf10263 MD |
699 | goto end; |
700 | } | |
701 | } | |
702 | ||
3ecec76a PP |
703 | ret = print_missing_or_multiple_domains(opt_kernel + opt_userspace); |
704 | if (ret) { | |
5061fb43 | 705 | command_ret = CMD_ERROR; |
ccf10263 MD |
706 | goto end; |
707 | } | |
708 | ||
709 | if (!opt_session_name) { | |
710 | session_name = get_session_name(); | |
711 | if (session_name == NULL) { | |
c51da673 | 712 | command_ret = CMD_ERROR; |
ccf10263 MD |
713 | goto end; |
714 | } | |
715 | } else { | |
716 | session_name = opt_session_name; | |
717 | } | |
718 | ||
ccf10263 MD |
719 | /* Mi check */ |
720 | if (lttng_opt_mi) { | |
721 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
722 | if (!writer) { | |
c51da673 | 723 | command_ret = CMD_ERROR; |
ccf10263 MD |
724 | goto end; |
725 | } | |
726 | } | |
727 | ||
728 | if (writer) { | |
729 | /* Open command element */ | |
730 | ret = mi_lttng_writer_command_open(writer, | |
731 | get_mi_element_command(cmd_type)); | |
732 | if (ret) { | |
c51da673 | 733 | command_ret = CMD_ERROR; |
ccf10263 MD |
734 | goto end; |
735 | } | |
736 | ||
737 | /* Open output element */ | |
738 | ret = mi_lttng_writer_open_element(writer, | |
739 | mi_lttng_element_command_output); | |
740 | if (ret) { | |
c51da673 | 741 | command_ret = CMD_ERROR; |
ccf10263 MD |
742 | goto end; |
743 | } | |
83d6d6c4 JR |
744 | |
745 | ret = mi_lttng_trackers_open(writer); | |
746 | if (ret) { | |
747 | goto end; | |
748 | } | |
ccf10263 MD |
749 | } |
750 | ||
83d6d6c4 JR |
751 | if (opt_pid.used) { |
752 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, | |
753 | opt_pid.string, opt_pid.all, writer, | |
754 | LTTNG_TRACKER_PID); | |
755 | if (command_ret != CMD_SUCCESS) { | |
756 | success = 0; | |
757 | } | |
758 | } | |
759 | if (opt_vpid.used) { | |
760 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, | |
761 | opt_vpid.string, opt_vpid.all, writer, | |
762 | LTTNG_TRACKER_VPID); | |
763 | if (command_ret != CMD_SUCCESS) { | |
764 | success = 0; | |
765 | } | |
766 | } | |
767 | if (opt_uid.used) { | |
768 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, | |
769 | opt_uid.string, opt_uid.all, writer, | |
770 | LTTNG_TRACKER_UID); | |
771 | if (command_ret != CMD_SUCCESS) { | |
772 | success = 0; | |
773 | } | |
774 | } | |
775 | if (opt_vuid.used) { | |
776 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, | |
777 | opt_vuid.string, opt_vuid.all, writer, | |
778 | LTTNG_TRACKER_VUID); | |
779 | if (command_ret != CMD_SUCCESS) { | |
780 | success = 0; | |
781 | } | |
782 | } | |
783 | if (opt_gid.used) { | |
784 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, | |
785 | opt_gid.string, opt_gid.all, writer, | |
786 | LTTNG_TRACKER_GID); | |
787 | if (command_ret != CMD_SUCCESS) { | |
788 | success = 0; | |
789 | } | |
790 | } | |
791 | if (opt_vgid.used) { | |
792 | command_ret = track_untrack_id(cmd_type, cmd_str, session_name, | |
793 | opt_vgid.string, opt_vgid.all, writer, | |
794 | LTTNG_TRACKER_VGID); | |
795 | if (command_ret != CMD_SUCCESS) { | |
796 | success = 0; | |
797 | } | |
ccf10263 MD |
798 | } |
799 | ||
800 | /* Mi closing */ | |
801 | if (writer) { | |
83d6d6c4 JR |
802 | /* Close trackers and output elements */ |
803 | ret = mi_lttng_close_multi_element(writer, 2); | |
ccf10263 | 804 | if (ret) { |
c51da673 | 805 | command_ret = CMD_ERROR; |
ccf10263 MD |
806 | goto end; |
807 | } | |
808 | ||
809 | /* Success ? */ | |
810 | ret = mi_lttng_writer_write_element_bool(writer, | |
811 | mi_lttng_element_command_success, success); | |
812 | if (ret) { | |
c51da673 | 813 | command_ret = CMD_ERROR; |
ccf10263 MD |
814 | goto end; |
815 | } | |
816 | ||
817 | /* Command element close */ | |
818 | ret = mi_lttng_writer_command_close(writer); | |
819 | if (ret) { | |
c51da673 | 820 | command_ret = CMD_ERROR; |
ccf10263 MD |
821 | goto end; |
822 | } | |
823 | } | |
824 | ||
825 | end: | |
826 | if (!opt_session_name) { | |
827 | free(session_name); | |
828 | } | |
829 | ||
830 | /* Mi clean-up */ | |
831 | if (writer && mi_lttng_writer_destroy(writer)) { | |
832 | /* Preserve original error code */ | |
c51da673 | 833 | command_ret = CMD_ERROR; |
ccf10263 MD |
834 | } |
835 | ||
ccf10263 | 836 | poptFreeContext(pc); |
c51da673 | 837 | return (int) command_ret; |
ccf10263 MD |
838 | } |
839 | ||
840 | int cmd_track(int argc, const char **argv) | |
841 | { | |
4fc83d94 PP |
842 | static const char *help_msg = |
843 | #ifdef LTTNG_EMBED_HELP | |
844 | #include <lttng-track.1.h> | |
845 | #else | |
846 | NULL | |
847 | #endif | |
848 | ; | |
849 | ||
850 | return cmd_track_untrack(CMD_TRACK, "track", argc, argv, help_msg); | |
ccf10263 MD |
851 | } |
852 | ||
853 | int cmd_untrack(int argc, const char **argv) | |
854 | { | |
4fc83d94 PP |
855 | static const char *help_msg = |
856 | #ifdef LTTNG_EMBED_HELP | |
857 | #include <lttng-untrack.1.h> | |
858 | #else | |
859 | NULL | |
860 | #endif | |
861 | ; | |
862 | ||
863 | return cmd_track_untrack(CMD_UNTRACK, "untrack", argc, argv, help_msg); | |
ccf10263 | 864 | } |