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4624dad0 SM |
1 | /* |
2 | * Copyright (C) 2021 Simon Marchi <simon.marchi@efficios.com> | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0-only | |
5 | * | |
6 | */ | |
7 | ||
8 | #include <ctype.h> | |
9 | #include <stdio.h> | |
10 | ||
11 | #include "../command.h" | |
12 | #include "../loglevel.h" | |
13 | #include "../uprobe.h" | |
14 | ||
15 | #include "common/argpar/argpar.h" | |
16 | #include "common/dynamic-array.h" | |
17 | #include "common/string-utils/string-utils.h" | |
18 | #include "common/utils.h" | |
19 | /* For lttng_event_rule_type_str(). */ | |
20 | #include <lttng/event-rule/event-rule-internal.h> | |
21 | #include <lttng/lttng.h> | |
c3e68e71 JR |
22 | #include "lttng/event-rule/kernel-function.h" |
23 | #include "lttng/event-rule/kernel-probe.h" | |
24 | #include "lttng/event-rule/syscall.h" | |
25 | #include <lttng/event-rule/tracepoint.h> | |
26 | #include "lttng/event-rule/userspace-probe.h" | |
27 | #include "lttng/kernel-function.h" | |
28 | #include "lttng/kernel-probe.h" | |
29 | #include "lttng/log-level-rule.h" | |
30 | #include "lttng/map-key-internal.h" | |
20a01d15 SM |
31 | #include "common/filter/filter-ast.h" |
32 | #include "common/filter/filter-ir.h" | |
33 | #include "common/dynamic-array.h" | |
4624dad0 SM |
34 | |
35 | #if (LTTNG_SYMBOL_NAME_LEN == 256) | |
36 | #define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255" | |
37 | #endif | |
38 | ||
39 | #ifdef LTTNG_EMBED_HELP | |
40 | static const char help_msg[] = | |
41 | #include <lttng-add-trigger.1.h> | |
42 | ; | |
43 | #endif | |
44 | ||
45 | enum { | |
46 | OPT_HELP, | |
47 | OPT_LIST_OPTIONS, | |
48 | ||
49 | OPT_CONDITION, | |
50 | OPT_ACTION, | |
51 | OPT_ID, | |
52 | OPT_FIRE_ONCE_AFTER, | |
53 | OPT_FIRE_EVERY, | |
54 | OPT_USER_ID, | |
55 | ||
56 | OPT_ALL, | |
57 | OPT_FILTER, | |
58 | OPT_EXCLUDE, | |
59 | OPT_LOGLEVEL, | |
60 | OPT_LOGLEVEL_ONLY, | |
61 | ||
62 | OPT_USERSPACE, | |
63 | OPT_KERNEL, | |
64 | OPT_LOG4J, | |
65 | OPT_JUL, | |
66 | OPT_PYTHON, | |
67 | ||
68 | OPT_FUNCTION, | |
69 | OPT_PROBE, | |
70 | OPT_USERSPACE_PROBE, | |
71 | OPT_SYSCALL, | |
72 | OPT_TRACEPOINT, | |
73 | ||
74 | OPT_NAME, | |
75 | OPT_MAX_SIZE, | |
76 | OPT_DATA_URL, | |
77 | OPT_CTRL_URL, | |
78 | OPT_URL, | |
79 | OPT_PATH, | |
20a01d15 | 80 | |
c3e68e71 JR |
81 | OPT_SESSION_NAME, |
82 | OPT_MAP_NAME, | |
83 | OPT_KEY, | |
84 | ||
20a01d15 | 85 | OPT_CAPTURE, |
4624dad0 SM |
86 | }; |
87 | ||
88 | static const struct argpar_opt_descr event_rule_opt_descrs[] = { | |
89 | { OPT_ALL, 'a', "all", false }, | |
90 | { OPT_FILTER, 'f', "filter", true }, | |
91 | { OPT_EXCLUDE, 'x', "exclude", true }, | |
92 | { OPT_LOGLEVEL, '\0', "loglevel", true }, | |
93 | { OPT_LOGLEVEL_ONLY, '\0', "loglevel-only", true }, | |
94 | ||
95 | /* Domains */ | |
96 | { OPT_USERSPACE, 'u', "userspace", false }, | |
97 | { OPT_KERNEL, 'k', "kernel", false }, | |
98 | { OPT_LOG4J, 'l', "log4j", false }, | |
99 | { OPT_JUL, 'j', "jul", false }, | |
100 | { OPT_PYTHON, 'p', "python", false }, | |
101 | ||
102 | /* Event rule types */ | |
103 | { OPT_FUNCTION, '\0', "function", true }, | |
104 | { OPT_PROBE, '\0', "probe", true }, | |
105 | { OPT_USERSPACE_PROBE, '\0', "userspace-probe", true }, | |
106 | { OPT_SYSCALL, '\0', "syscall" }, | |
107 | { OPT_TRACEPOINT, '\0', "tracepoint" }, | |
108 | ||
20a01d15 SM |
109 | /* Capture descriptor */ |
110 | { OPT_CAPTURE, '\0', "capture", true }, | |
111 | ||
4624dad0 SM |
112 | ARGPAR_OPT_DESCR_SENTINEL |
113 | }; | |
114 | ||
115 | static | |
116 | bool assign_domain_type(enum lttng_domain_type *dest, | |
117 | enum lttng_domain_type src) | |
118 | { | |
119 | bool ret; | |
120 | ||
121 | if (*dest == LTTNG_DOMAIN_NONE || *dest == src) { | |
122 | *dest = src; | |
123 | ret = true; | |
124 | } else { | |
125 | ERR("Multiple domains specified."); | |
126 | ret = false; | |
127 | } | |
128 | ||
129 | return ret; | |
130 | } | |
131 | ||
132 | static | |
133 | bool assign_event_rule_type(enum lttng_event_rule_type *dest, | |
134 | enum lttng_event_rule_type src) | |
135 | { | |
136 | bool ret; | |
137 | ||
138 | if (*dest == LTTNG_EVENT_RULE_TYPE_UNKNOWN || *dest == src) { | |
139 | *dest = src; | |
140 | ret = true; | |
141 | } else { | |
142 | ERR("Multiple event types specified."); | |
143 | ret = false; | |
144 | } | |
145 | ||
146 | return ret; | |
147 | } | |
148 | ||
149 | static | |
150 | bool assign_string(char **dest, const char *src, const char *opt_name) | |
151 | { | |
152 | bool ret; | |
153 | ||
154 | if (*dest) { | |
155 | ERR("Duplicate '%s' given.", opt_name); | |
156 | goto error; | |
157 | } | |
158 | ||
159 | *dest = strdup(src); | |
160 | if (!*dest) { | |
161 | PERROR("Failed to allocate string '%s'.", opt_name); | |
162 | goto error; | |
163 | } | |
164 | ||
165 | ret = true; | |
166 | goto end; | |
167 | ||
168 | error: | |
169 | ret = false; | |
170 | ||
171 | end: | |
172 | return ret; | |
173 | } | |
174 | ||
175 | /* This is defined in enable_events.c. */ | |
176 | LTTNG_HIDDEN | |
177 | int create_exclusion_list_and_validate(const char *event_name, | |
178 | const char *exclusions_arg, | |
179 | char ***exclusion_list); | |
180 | ||
181 | /* | |
182 | * Parse `str` as a log level in domain `domain_type`. Return -1 if the string | |
183 | * is not recognized as a valid log level. | |
184 | */ | |
185 | static | |
186 | int parse_loglevel_string(const char *str, enum lttng_domain_type domain_type) | |
187 | { | |
188 | switch (domain_type) { | |
189 | case LTTNG_DOMAIN_UST: | |
190 | { | |
191 | enum lttng_loglevel loglevel; | |
192 | const int ret = loglevel_name_to_value(str, &loglevel); | |
193 | ||
194 | return ret == -1 ? ret : (int) loglevel; | |
195 | } | |
196 | case LTTNG_DOMAIN_LOG4J: | |
197 | { | |
198 | enum lttng_loglevel_log4j loglevel; | |
199 | const int ret = loglevel_log4j_name_to_value(str, &loglevel); | |
200 | ||
201 | return ret == -1 ? ret : (int) loglevel; | |
202 | } | |
203 | case LTTNG_DOMAIN_JUL: | |
204 | { | |
205 | enum lttng_loglevel_jul loglevel; | |
206 | const int ret = loglevel_jul_name_to_value(str, &loglevel); | |
207 | ||
208 | return ret == -1 ? ret : (int) loglevel; | |
209 | } | |
210 | case LTTNG_DOMAIN_PYTHON: | |
211 | { | |
212 | enum lttng_loglevel_python loglevel; | |
213 | const int ret = loglevel_python_name_to_value(str, &loglevel); | |
214 | ||
215 | return ret == -1 ? ret : (int) loglevel; | |
216 | } | |
217 | default: | |
218 | /* Invalid domain type. */ | |
219 | abort(); | |
220 | } | |
221 | } | |
222 | ||
223 | static int parse_kernel_probe_opts(const char *source, | |
224 | struct lttng_kernel_probe_location **location) | |
225 | { | |
226 | int ret = 0; | |
227 | int match; | |
228 | char s_hex[19]; | |
229 | char name[LTTNG_SYMBOL_NAME_LEN]; | |
230 | char *symbol_name = NULL; | |
231 | uint64_t offset; | |
232 | ||
233 | /* Check for symbol+offset. */ | |
234 | match = sscanf(source, | |
235 | "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API | |
236 | "[^'+']+%18s", | |
237 | name, s_hex); | |
238 | if (match == 2) { | |
239 | if (*s_hex == '\0') { | |
240 | ERR("Kernel probe symbol offset is missing."); | |
241 | goto error; | |
242 | } | |
243 | ||
244 | symbol_name = strndup(name, LTTNG_SYMBOL_NAME_LEN); | |
245 | if (!symbol_name) { | |
246 | PERROR("Failed to copy kernel probe location symbol name."); | |
247 | goto error; | |
248 | } | |
249 | offset = strtoul(s_hex, NULL, 0); | |
250 | ||
251 | *location = lttng_kernel_probe_location_symbol_create( | |
252 | symbol_name, offset); | |
f6e30a8a | 253 | if (!*location) { |
4624dad0 SM |
254 | ERR("Failed to create symbol kernel probe location."); |
255 | goto error; | |
256 | } | |
257 | ||
258 | goto end; | |
259 | } | |
260 | ||
261 | /* Check for symbol. */ | |
262 | if (isalpha(name[0]) || name[0] == '_') { | |
263 | match = sscanf(source, | |
264 | "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API | |
265 | "s", | |
266 | name); | |
267 | if (match == 1) { | |
268 | symbol_name = strndup(name, LTTNG_SYMBOL_NAME_LEN); | |
269 | if (!symbol_name) { | |
270 | ERR("Failed to copy kernel probe location symbol name."); | |
271 | goto error; | |
272 | } | |
273 | ||
274 | *location = lttng_kernel_probe_location_symbol_create( | |
275 | symbol_name, 0); | |
14f27f79 | 276 | if (!*location) { |
4624dad0 SM |
277 | ERR("Failed to create symbol kernel probe location."); |
278 | goto error; | |
279 | } | |
280 | ||
281 | goto end; | |
282 | } | |
283 | } | |
284 | ||
285 | /* Check for address. */ | |
286 | match = sscanf(source, "%18s", s_hex); | |
287 | if (match > 0) { | |
288 | uint64_t address; | |
289 | ||
290 | if (*s_hex == '\0') { | |
291 | ERR("Invalid kernel probe location address."); | |
292 | goto error; | |
293 | } | |
294 | ||
295 | address = strtoul(s_hex, NULL, 0); | |
296 | *location = lttng_kernel_probe_location_address_create(address); | |
5c6ca809 | 297 | if (!*location) { |
4624dad0 SM |
298 | ERR("Failed to create symbol kernel probe location."); |
299 | goto error; | |
300 | } | |
301 | ||
302 | goto end; | |
303 | } | |
304 | ||
305 | error: | |
306 | /* No match */ | |
307 | ret = -1; | |
308 | *location = NULL; | |
309 | ||
310 | end: | |
311 | free(symbol_name); | |
312 | return ret; | |
313 | } | |
314 | ||
c3e68e71 JR |
315 | static int parse_kernel_function_opts(const char *source, |
316 | struct lttng_kernel_function_location **location) | |
317 | { | |
318 | int ret = 0; | |
319 | int match; | |
320 | char s_hex[19]; | |
321 | char name[LTTNG_SYMBOL_NAME_LEN]; | |
322 | char *symbol_name = NULL; | |
323 | uint64_t offset; | |
324 | ||
325 | /* Check for symbol+offset. */ | |
326 | match = sscanf(source, | |
327 | "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API | |
328 | "[^'+']+%18s", | |
329 | name, s_hex); | |
330 | if (match == 2) { | |
331 | if (*s_hex == '\0') { | |
332 | ERR("Kernel function symbol offset is missing."); | |
333 | goto error; | |
334 | } | |
335 | ||
336 | symbol_name = strndup(name, LTTNG_SYMBOL_NAME_LEN); | |
337 | if (!symbol_name) { | |
338 | PERROR("Failed to copy kernel function location symbol name."); | |
339 | goto error; | |
340 | } | |
341 | offset = strtoul(s_hex, NULL, 0); | |
342 | ||
343 | *location = lttng_kernel_function_location_symbol_create( | |
344 | symbol_name, offset); | |
345 | if (!*location) { | |
346 | ERR("Failed to create symbol kernel function location."); | |
347 | goto error; | |
348 | } | |
349 | ||
350 | goto end; | |
351 | } | |
352 | ||
353 | /* Check for symbol. */ | |
354 | if (isalpha(name[0]) || name[0] == '_') { | |
355 | match = sscanf(source, | |
356 | "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API | |
357 | "s", | |
358 | name); | |
359 | if (match == 1) { | |
360 | symbol_name = strndup(name, LTTNG_SYMBOL_NAME_LEN); | |
361 | if (!symbol_name) { | |
362 | ERR("Failed to copy kernel function location symbol name."); | |
363 | goto error; | |
364 | } | |
365 | ||
366 | *location = lttng_kernel_function_location_symbol_create( | |
367 | symbol_name, 0); | |
368 | if (!*location) { | |
369 | ERR("Failed to create symbol kernel function location."); | |
370 | goto error; | |
371 | } | |
372 | ||
373 | goto end; | |
374 | } | |
375 | } | |
376 | ||
377 | /* Check for address. */ | |
378 | match = sscanf(source, "%18s", s_hex); | |
379 | if (match > 0) { | |
380 | uint64_t address; | |
381 | ||
382 | if (*s_hex == '\0') { | |
383 | ERR("Invalid kernel function location address."); | |
384 | goto error; | |
385 | } | |
386 | ||
387 | address = strtoul(s_hex, NULL, 0); | |
388 | *location = lttng_kernel_function_location_address_create(address); | |
389 | if (!*location) { | |
390 | ERR("Failed to create symbol kernel function location."); | |
391 | goto error; | |
392 | } | |
393 | ||
394 | goto end; | |
395 | } | |
396 | ||
397 | error: | |
398 | /* No match */ | |
399 | ret = -1; | |
400 | *location = NULL; | |
401 | ||
402 | end: | |
403 | free(symbol_name); | |
404 | return ret; | |
405 | } | |
406 | ||
20a01d15 SM |
407 | static |
408 | struct lttng_event_expr *ir_op_load_expr_to_event_expr( | |
3363a4c3 JG |
409 | const struct ir_load_expression *load_expr, |
410 | const char *capture_str) | |
20a01d15 SM |
411 | { |
412 | char *provider_name = NULL; | |
413 | struct lttng_event_expr *event_expr = NULL; | |
3363a4c3 JG |
414 | const struct ir_load_expression_op *load_expr_op = load_expr->child; |
415 | const enum ir_load_expression_type load_expr_child_type = | |
416 | load_expr_op->type; | |
20a01d15 | 417 | |
3363a4c3 | 418 | switch (load_expr_child_type) { |
20a01d15 SM |
419 | case IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT: |
420 | case IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT: | |
421 | { | |
422 | const char *field_name; | |
423 | ||
424 | load_expr_op = load_expr_op->next; | |
425 | assert(load_expr_op); | |
426 | assert(load_expr_op->type == IR_LOAD_EXPRESSION_GET_SYMBOL); | |
427 | field_name = load_expr_op->u.symbol; | |
428 | assert(field_name); | |
429 | ||
3363a4c3 | 430 | event_expr = load_expr_child_type == IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT ? |
20a01d15 SM |
431 | lttng_event_expr_event_payload_field_create(field_name) : |
432 | lttng_event_expr_channel_context_field_create(field_name); | |
433 | if (!event_expr) { | |
434 | ERR("Failed to create %s event expression: field name = `%s`.", | |
3363a4c3 | 435 | load_expr_child_type == IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT ? |
20a01d15 SM |
436 | "payload field" : "channel context", |
437 | field_name); | |
438 | goto error; | |
439 | } | |
440 | ||
441 | break; | |
442 | } | |
443 | case IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT: | |
444 | { | |
445 | const char *colon; | |
446 | const char *type_name; | |
447 | const char *field_name; | |
448 | ||
449 | load_expr_op = load_expr_op->next; | |
450 | assert(load_expr_op); | |
451 | assert(load_expr_op->type == IR_LOAD_EXPRESSION_GET_SYMBOL); | |
452 | field_name = load_expr_op->u.symbol; | |
453 | assert(field_name); | |
454 | ||
455 | /* | |
456 | * The field name needs to be of the form PROVIDER:TYPE. We | |
457 | * split it here. | |
458 | */ | |
459 | colon = strchr(field_name, ':'); | |
460 | if (!colon) { | |
461 | ERR("Invalid app-specific context field name: missing colon in `%s`.", | |
462 | field_name); | |
463 | goto error; | |
464 | } | |
465 | ||
466 | type_name = colon + 1; | |
467 | if (*type_name == '\0') { | |
468 | ERR("Invalid app-specific context field name: missing type name after colon in `%s`.", | |
469 | field_name); | |
470 | goto error; | |
471 | } | |
472 | ||
473 | provider_name = strndup(field_name, colon - field_name); | |
474 | if (!provider_name) { | |
475 | PERROR("Failed to allocate field name string"); | |
476 | goto error; | |
477 | } | |
478 | ||
479 | event_expr = lttng_event_expr_app_specific_context_field_create( | |
480 | provider_name, type_name); | |
481 | if (!event_expr) { | |
482 | ERR("Failed to create app-specific context field event expression: provider name = `%s`, type name = `%s`", | |
483 | provider_name, type_name); | |
484 | goto error; | |
485 | } | |
486 | ||
487 | break; | |
488 | } | |
489 | default: | |
490 | ERR("%s: unexpected load expr type %d.", __func__, | |
491 | load_expr_op->type); | |
492 | abort(); | |
493 | } | |
494 | ||
495 | load_expr_op = load_expr_op->next; | |
496 | ||
497 | /* There may be a single array index after that. */ | |
498 | if (load_expr_op->type == IR_LOAD_EXPRESSION_GET_INDEX) { | |
499 | struct lttng_event_expr *index_event_expr; | |
500 | const uint64_t index = load_expr_op->u.index; | |
501 | ||
502 | index_event_expr = lttng_event_expr_array_field_element_create(event_expr, index); | |
503 | if (!index_event_expr) { | |
504 | ERR("Failed to create array field element event expression."); | |
505 | goto error; | |
506 | } | |
507 | ||
508 | event_expr = index_event_expr; | |
509 | load_expr_op = load_expr_op->next; | |
510 | } | |
511 | ||
512 | switch (load_expr_op->type) { | |
513 | case IR_LOAD_EXPRESSION_LOAD_FIELD: | |
514 | /* | |
515 | * This is what we expect, IR_LOAD_EXPRESSION_LOAD_FIELD is | |
516 | * always found at the end of the chain. | |
517 | */ | |
518 | break; | |
519 | case IR_LOAD_EXPRESSION_GET_SYMBOL: | |
520 | ERR("While parsing expression `%s`: Capturing subfields is not supported.", | |
521 | capture_str); | |
522 | goto error; | |
523 | ||
524 | default: | |
525 | ERR("%s: unexpected load expression operator %s.", __func__, | |
526 | ir_load_expression_type_str(load_expr_op->type)); | |
527 | abort(); | |
528 | } | |
529 | ||
530 | goto end; | |
531 | ||
532 | error: | |
533 | lttng_event_expr_destroy(event_expr); | |
534 | event_expr = NULL; | |
535 | ||
536 | end: | |
537 | free(provider_name); | |
538 | ||
539 | return event_expr; | |
540 | } | |
541 | ||
542 | static | |
543 | struct lttng_event_expr *ir_op_load_to_event_expr( | |
544 | const struct ir_op *ir, const char *capture_str) | |
545 | { | |
546 | struct lttng_event_expr *event_expr = NULL; | |
547 | ||
548 | assert(ir->op == IR_OP_LOAD); | |
549 | ||
550 | switch (ir->data_type) { | |
551 | case IR_DATA_EXPRESSION: | |
552 | { | |
553 | const struct ir_load_expression *ir_load_expr = | |
554 | ir->u.load.u.expression; | |
555 | ||
556 | event_expr = ir_op_load_expr_to_event_expr( | |
557 | ir_load_expr, capture_str); | |
558 | break; | |
559 | } | |
560 | default: | |
561 | ERR("%s: unexpected data type: %s.", __func__, | |
562 | ir_data_type_str(ir->data_type)); | |
563 | abort(); | |
564 | } | |
565 | ||
566 | return event_expr; | |
567 | } | |
568 | ||
569 | static | |
570 | const char *ir_operator_type_human_str(enum ir_op_type op) | |
571 | { | |
572 | const char *name; | |
573 | ||
574 | switch (op) { | |
575 | case IR_OP_BINARY: | |
576 | name = "Binary"; | |
577 | break; | |
578 | case IR_OP_UNARY: | |
579 | name = "Unary"; | |
580 | break; | |
581 | case IR_OP_LOGICAL: | |
582 | name = "Logical"; | |
583 | break; | |
584 | default: | |
585 | abort(); | |
586 | } | |
587 | ||
588 | return name; | |
589 | } | |
590 | ||
591 | static | |
592 | struct lttng_event_expr *ir_op_root_to_event_expr(const struct ir_op *ir, | |
593 | const char *capture_str) | |
594 | { | |
595 | struct lttng_event_expr *event_expr = NULL; | |
596 | ||
597 | assert(ir->op == IR_OP_ROOT); | |
598 | ir = ir->u.root.child; | |
599 | ||
600 | switch (ir->op) { | |
601 | case IR_OP_LOAD: | |
602 | event_expr = ir_op_load_to_event_expr(ir, capture_str); | |
603 | break; | |
604 | case IR_OP_BINARY: | |
605 | case IR_OP_UNARY: | |
606 | case IR_OP_LOGICAL: | |
607 | ERR("While parsing expression `%s`: %s operators are not allowed in capture expressions.", | |
608 | capture_str, | |
609 | ir_operator_type_human_str(ir->op)); | |
610 | break; | |
611 | default: | |
612 | ERR("%s: unexpected IR op type: %s.", __func__, | |
613 | ir_op_type_str(ir->op)); | |
614 | abort(); | |
615 | } | |
616 | ||
617 | return event_expr; | |
618 | } | |
619 | ||
620 | static | |
621 | void destroy_event_expr(void *ptr) | |
622 | { | |
623 | lttng_event_expr_destroy(ptr); | |
624 | } | |
625 | ||
626 | struct parse_event_rule_res { | |
627 | /* Owned by this. */ | |
628 | struct lttng_event_rule *er; | |
629 | ||
630 | /* Array of `struct lttng_event_expr *` */ | |
631 | struct lttng_dynamic_pointer_array capture_descriptors; | |
632 | }; | |
633 | ||
634 | static | |
635 | struct parse_event_rule_res parse_event_rule(int *argc, const char ***argv) | |
4624dad0 | 636 | { |
4624dad0 SM |
637 | enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE; |
638 | enum lttng_event_rule_type event_rule_type = | |
639 | LTTNG_EVENT_RULE_TYPE_UNKNOWN; | |
640 | struct argpar_state *state; | |
641 | struct argpar_item *item = NULL; | |
642 | char *error = NULL; | |
643 | int consumed_args = -1; | |
644 | struct lttng_kernel_probe_location *kernel_probe_location = NULL; | |
c3e68e71 | 645 | struct lttng_kernel_function_location *kernel_function_location = NULL; |
4624dad0 | 646 | struct lttng_userspace_probe_location *userspace_probe_location = NULL; |
20a01d15 SM |
647 | struct parse_event_rule_res res = { 0 }; |
648 | struct lttng_event_expr *event_expr = NULL; | |
649 | struct filter_parser_ctx *parser_ctx = NULL; | |
c3e68e71 | 650 | struct lttng_log_level_rule *log_level_rule = NULL; |
4624dad0 SM |
651 | |
652 | /* Was the -a/--all flag provided? */ | |
653 | bool all_events = false; | |
654 | ||
655 | /* Tracepoint name (non-option argument). */ | |
656 | const char *tracepoint_name = NULL; | |
657 | ||
658 | /* Holds the argument of --probe / --userspace-probe. */ | |
659 | char *source = NULL; | |
660 | ||
661 | /* Filter. */ | |
662 | char *filter = NULL; | |
663 | ||
664 | /* Exclude. */ | |
665 | char *exclude = NULL; | |
666 | char **exclusion_list = NULL; | |
667 | ||
668 | /* Log level. */ | |
669 | char *loglevel_str = NULL; | |
670 | bool loglevel_only = false; | |
671 | ||
20a01d15 SM |
672 | lttng_dynamic_pointer_array_init(&res.capture_descriptors, |
673 | destroy_event_expr); | |
4624dad0 SM |
674 | state = argpar_state_create(*argc, *argv, event_rule_opt_descrs); |
675 | if (!state) { | |
676 | ERR("Failed to allocate an argpar state."); | |
677 | goto error; | |
678 | } | |
679 | ||
680 | while (true) { | |
681 | enum argpar_state_parse_next_status status; | |
682 | ||
683 | ARGPAR_ITEM_DESTROY_AND_RESET(item); | |
684 | status = argpar_state_parse_next(state, &item, &error); | |
685 | if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR) { | |
686 | ERR("%s", error); | |
687 | goto error; | |
688 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR_UNKNOWN_OPT) { | |
689 | /* Just stop parsing here. */ | |
690 | break; | |
691 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_END) { | |
692 | break; | |
693 | } | |
694 | ||
695 | assert(status == ARGPAR_STATE_PARSE_NEXT_STATUS_OK); | |
696 | ||
697 | if (item->type == ARGPAR_ITEM_TYPE_OPT) { | |
698 | const struct argpar_item_opt *item_opt = | |
699 | (const struct argpar_item_opt *) item; | |
700 | ||
701 | switch (item_opt->descr->id) { | |
702 | /* Domains. */ | |
703 | case OPT_USERSPACE: | |
704 | if (!assign_domain_type(&domain_type, LTTNG_DOMAIN_UST)) { | |
705 | goto error; | |
706 | } | |
707 | ||
708 | break; | |
709 | case OPT_KERNEL: | |
710 | if (!assign_domain_type(&domain_type, LTTNG_DOMAIN_KERNEL)) { | |
711 | goto error; | |
712 | } | |
713 | ||
714 | break; | |
715 | case OPT_LOG4J: | |
716 | if (!assign_domain_type(&domain_type, LTTNG_DOMAIN_LOG4J)) { | |
717 | goto error; | |
718 | } | |
719 | ||
720 | break; | |
721 | case OPT_JUL: | |
722 | if (!assign_domain_type(&domain_type, LTTNG_DOMAIN_JUL)) { | |
723 | goto error; | |
724 | } | |
725 | ||
726 | break; | |
727 | case OPT_PYTHON: | |
728 | if (!assign_domain_type(&domain_type, LTTNG_DOMAIN_PYTHON)) { | |
729 | goto error; | |
730 | } | |
731 | ||
732 | break; | |
733 | ||
734 | /* Event rule types */ | |
735 | case OPT_FUNCTION: | |
736 | if (!assign_event_rule_type(&event_rule_type, | |
c3e68e71 JR |
737 | LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION)) { |
738 | goto error; | |
739 | } | |
740 | ||
741 | if (!assign_string(&source, item_opt->arg, "source")) { | |
4624dad0 SM |
742 | goto error; |
743 | } | |
744 | ||
745 | break; | |
746 | case OPT_PROBE: | |
747 | if (!assign_event_rule_type(&event_rule_type, | |
c3e68e71 | 748 | LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE)) { |
4624dad0 SM |
749 | goto error; |
750 | } | |
751 | ||
752 | if (!assign_string(&source, item_opt->arg, "source")) { | |
753 | goto error; | |
754 | } | |
755 | ||
756 | break; | |
757 | case OPT_USERSPACE_PROBE: | |
758 | if (!assign_event_rule_type(&event_rule_type, | |
c3e68e71 | 759 | LTTNG_EVENT_RULE_TYPE_USERSPACE_PROBE)) { |
4624dad0 SM |
760 | goto error; |
761 | } | |
762 | ||
763 | if (!assign_string(&source, item_opt->arg, "source")) { | |
764 | goto error; | |
765 | } | |
766 | ||
767 | break; | |
768 | case OPT_SYSCALL: | |
769 | if (!assign_event_rule_type(&event_rule_type, | |
770 | LTTNG_EVENT_RULE_TYPE_SYSCALL)) { | |
771 | goto error; | |
772 | } | |
773 | ||
774 | break; | |
775 | case OPT_TRACEPOINT: | |
776 | if (!assign_event_rule_type(&event_rule_type, | |
777 | LTTNG_EVENT_RULE_TYPE_TRACEPOINT)) { | |
778 | goto error; | |
779 | } | |
780 | ||
781 | break; | |
782 | case OPT_ALL: | |
783 | all_events = true; | |
784 | break; | |
785 | case OPT_FILTER: | |
786 | if (!assign_string(&filter, item_opt->arg, | |
787 | "--filter/-f")) { | |
788 | goto error; | |
789 | } | |
790 | ||
791 | break; | |
792 | case OPT_EXCLUDE: | |
793 | if (!assign_string(&exclude, item_opt->arg, | |
794 | "--exclude/-x")) { | |
795 | goto error; | |
796 | } | |
797 | ||
798 | break; | |
799 | case OPT_LOGLEVEL: | |
800 | case OPT_LOGLEVEL_ONLY: | |
801 | if (!assign_string(&loglevel_str, item_opt->arg, | |
802 | "--loglevel/--loglevel-only")) { | |
803 | goto error; | |
804 | } | |
805 | ||
806 | loglevel_only = item_opt->descr->id == | |
807 | OPT_LOGLEVEL_ONLY; | |
808 | break; | |
20a01d15 SM |
809 | case OPT_CAPTURE: |
810 | { | |
811 | int ret; | |
812 | const char *capture_str = item_opt->arg; | |
813 | ||
814 | ret = filter_parser_ctx_create_from_filter_expression( | |
815 | capture_str, &parser_ctx); | |
816 | if (ret) { | |
817 | ERR("Failed to parse capture expression `%s`.", | |
818 | capture_str); | |
819 | goto error; | |
820 | } | |
821 | ||
822 | event_expr = ir_op_root_to_event_expr( | |
823 | parser_ctx->ir_root, | |
824 | capture_str); | |
825 | if (!event_expr) { | |
826 | /* | |
827 | * ir_op_root_to_event_expr has printed | |
828 | * an error message. | |
829 | */ | |
830 | goto error; | |
831 | } | |
832 | ||
833 | ret = lttng_dynamic_pointer_array_add_pointer( | |
834 | &res.capture_descriptors, | |
835 | event_expr); | |
836 | if (ret) { | |
837 | goto error; | |
838 | } | |
839 | ||
840 | /* | |
841 | * The ownership of event expression was | |
842 | * transferred to the dynamic array. | |
843 | */ | |
844 | event_expr = NULL; | |
845 | ||
846 | break; | |
847 | } | |
4624dad0 SM |
848 | default: |
849 | abort(); | |
850 | } | |
851 | } else { | |
852 | const struct argpar_item_non_opt *item_non_opt = | |
853 | (const struct argpar_item_non_opt *) | |
854 | item; | |
855 | ||
856 | /* | |
857 | * Don't accept two non-option arguments/tracepoint | |
858 | * names. | |
859 | */ | |
860 | if (tracepoint_name) { | |
861 | ERR("Unexpected argument '%s'", | |
862 | item_non_opt->arg); | |
863 | goto error; | |
864 | } | |
865 | ||
866 | tracepoint_name = item_non_opt->arg; | |
867 | } | |
868 | } | |
869 | ||
870 | if (event_rule_type == LTTNG_EVENT_RULE_TYPE_UNKNOWN) { | |
871 | event_rule_type = LTTNG_EVENT_RULE_TYPE_TRACEPOINT; | |
872 | } | |
873 | ||
874 | /* | |
875 | * Option -a is applicable to event rules of type tracepoint and | |
876 | * syscall, and it is equivalent to using "*" as the tracepoint name. | |
877 | */ | |
878 | if (all_events) { | |
879 | switch (event_rule_type) { | |
880 | case LTTNG_EVENT_RULE_TYPE_TRACEPOINT: | |
881 | case LTTNG_EVENT_RULE_TYPE_SYSCALL: | |
882 | break; | |
883 | default: | |
884 | ERR("Can't use -a/--all with %s event rules.", | |
885 | lttng_event_rule_type_str(event_rule_type)); | |
886 | goto error; | |
887 | } | |
888 | ||
889 | if (tracepoint_name) { | |
890 | ERR("Can't provide a tracepoint name with -a/--all."); | |
891 | goto error; | |
892 | } | |
893 | ||
894 | /* In which case, it's equivalent to tracepoint name "*". */ | |
895 | tracepoint_name = "*"; | |
896 | } | |
897 | ||
898 | /* | |
899 | * A tracepoint name (or -a, for the event rule types that accept it) | |
900 | * is required. | |
901 | */ | |
902 | if (!tracepoint_name) { | |
903 | ERR("Need to provide either a tracepoint name or -a/--all."); | |
904 | goto error; | |
905 | } | |
906 | ||
907 | /* | |
908 | * We don't support multiple tracepoint names for now. | |
909 | */ | |
910 | if (strchr(tracepoint_name, ',')) { | |
911 | ERR("Comma separated tracepoint names are not supported."); | |
912 | goto error; | |
913 | } | |
914 | ||
915 | /* | |
916 | * Update *argc and *argv so our caller can keep parsing what follows. | |
917 | */ | |
918 | consumed_args = argpar_state_get_ingested_orig_args(state); | |
919 | assert(consumed_args >= 0); | |
920 | *argc -= consumed_args; | |
921 | *argv += consumed_args; | |
922 | ||
923 | /* Need to specify a domain. */ | |
924 | if (domain_type == LTTNG_DOMAIN_NONE) { | |
925 | ERR("Please specify a domain (--kernel/--userspace/--jul/--log4j/--python)."); | |
926 | goto error; | |
927 | } | |
928 | ||
929 | /* Validate event rule type against domain. */ | |
930 | switch (event_rule_type) { | |
c3e68e71 JR |
931 | case LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE: |
932 | case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION: | |
933 | case LTTNG_EVENT_RULE_TYPE_USERSPACE_PROBE: | |
4624dad0 SM |
934 | case LTTNG_EVENT_RULE_TYPE_SYSCALL: |
935 | if (domain_type != LTTNG_DOMAIN_KERNEL) { | |
936 | ERR("Event type not available for user-space tracing."); | |
937 | goto error; | |
938 | } | |
939 | break; | |
940 | ||
941 | case LTTNG_EVENT_RULE_TYPE_TRACEPOINT: | |
942 | break; | |
943 | ||
944 | default: | |
945 | abort(); | |
946 | } | |
947 | ||
948 | /* | |
949 | * Adding a filter to a probe, function or userspace-probe would be | |
950 | * denied by the kernel tracer as it's not supported at the moment. We | |
951 | * do an early check here to warn the user. | |
952 | */ | |
953 | if (filter && domain_type == LTTNG_DOMAIN_KERNEL) { | |
954 | switch (event_rule_type) { | |
955 | case LTTNG_EVENT_RULE_TYPE_TRACEPOINT: | |
956 | case LTTNG_EVENT_RULE_TYPE_SYSCALL: | |
957 | break; | |
958 | default: | |
959 | ERR("Filter expressions are not supported for %s event rules.", | |
960 | lttng_event_rule_type_str(event_rule_type)); | |
961 | goto error; | |
962 | } | |
963 | } | |
964 | ||
965 | /* If --exclude/-x was passed, split it into an exclusion list. */ | |
966 | if (exclude) { | |
967 | if (domain_type != LTTNG_DOMAIN_UST) { | |
968 | ERR("Event name exclusions are not yet implemented for %s event rules.", | |
969 | get_domain_str(domain_type)); | |
970 | goto error; | |
971 | } | |
972 | ||
973 | ||
974 | if (create_exclusion_list_and_validate(tracepoint_name, exclude, | |
975 | &exclusion_list) != 0) { | |
976 | ERR("Failed to create exclusion list."); | |
977 | goto error; | |
978 | } | |
979 | } | |
980 | ||
981 | if (loglevel_str && event_rule_type != LTTNG_EVENT_RULE_TYPE_TRACEPOINT) { | |
982 | ERR("Log levels are only applicable to tracepoint event rules."); | |
983 | goto error; | |
984 | } | |
985 | ||
986 | /* Finally, create the event rule object. */ | |
987 | switch (event_rule_type) { | |
988 | case LTTNG_EVENT_RULE_TYPE_TRACEPOINT: | |
989 | { | |
990 | enum lttng_event_rule_status event_rule_status; | |
991 | ||
20a01d15 SM |
992 | res.er = lttng_event_rule_tracepoint_create(domain_type); |
993 | if (!res.er) { | |
4624dad0 SM |
994 | ERR("Failed to create tracepoint event rule."); |
995 | goto error; | |
996 | } | |
997 | ||
998 | /* Set pattern. */ | |
999 | event_rule_status = lttng_event_rule_tracepoint_set_pattern( | |
20a01d15 | 1000 | res.er, tracepoint_name); |
4624dad0 SM |
1001 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
1002 | ERR("Failed to set tracepoint event rule's pattern to '%s'.", | |
1003 | tracepoint_name); | |
1004 | goto error; | |
1005 | } | |
1006 | ||
1007 | /* Set filter. */ | |
1008 | if (filter) { | |
1009 | event_rule_status = lttng_event_rule_tracepoint_set_filter( | |
20a01d15 | 1010 | res.er, filter); |
4624dad0 SM |
1011 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
1012 | ERR("Failed to set tracepoint event rule's filter to '%s'.", | |
1013 | filter); | |
1014 | goto error; | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | /* Set exclusion list. */ | |
1019 | if (exclusion_list) { | |
1020 | int n; | |
1021 | ||
1022 | for (n = 0; exclusion_list[n]; n++) { | |
1023 | event_rule_status = lttng_event_rule_tracepoint_add_exclusion( | |
20a01d15 | 1024 | res.er, |
4624dad0 SM |
1025 | exclusion_list[n]); |
1026 | if (event_rule_status != | |
1027 | LTTNG_EVENT_RULE_STATUS_OK) { | |
1028 | ERR("Failed to set tracepoint exclusion list element '%s'", | |
1029 | exclusion_list[n]); | |
1030 | goto error; | |
1031 | } | |
1032 | } | |
1033 | } | |
1034 | ||
1035 | if (loglevel_str) { | |
1036 | int loglevel; | |
1037 | ||
1038 | if (domain_type == LTTNG_DOMAIN_KERNEL) { | |
1039 | ERR("Log levels are not supported by the kernel tracer."); | |
1040 | goto error; | |
1041 | } | |
1042 | ||
1043 | loglevel = parse_loglevel_string( | |
1044 | loglevel_str, domain_type); | |
1045 | if (loglevel < 0) { | |
1046 | ERR("Failed to parse `%s` as a log level.", | |
1047 | loglevel_str); | |
1048 | goto error; | |
1049 | } | |
1050 | ||
1051 | if (loglevel_only) { | |
c3e68e71 | 1052 | log_level_rule = lttng_log_level_rule_exactly_create(loglevel); |
4624dad0 | 1053 | } else { |
c3e68e71 JR |
1054 | log_level_rule = lttng_log_level_rule_at_least_as_severe_as_create(loglevel); |
1055 | } | |
1056 | ||
1057 | if (log_level_rule == NULL) { | |
1058 | ERR("Failed to create log level rule object."); | |
1059 | goto error; | |
4624dad0 SM |
1060 | } |
1061 | ||
c3e68e71 JR |
1062 | event_rule_status = |
1063 | lttng_event_rule_tracepoint_set_log_level_rule( | |
1064 | res.er, log_level_rule); | |
1065 | ||
4624dad0 SM |
1066 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
1067 | ERR("Failed to set log level on event fule."); | |
1068 | goto error; | |
1069 | } | |
1070 | } | |
1071 | ||
1072 | break; | |
1073 | } | |
c3e68e71 | 1074 | case LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE: |
4624dad0 SM |
1075 | { |
1076 | int ret; | |
1077 | enum lttng_event_rule_status event_rule_status; | |
1078 | ||
4624dad0 SM |
1079 | |
1080 | ret = parse_kernel_probe_opts(source, &kernel_probe_location); | |
1081 | if (ret) { | |
1082 | ERR("Failed to parse kernel probe location."); | |
1083 | goto error; | |
1084 | } | |
1085 | ||
c3e68e71 JR |
1086 | assert(kernel_probe_location); |
1087 | res.er = lttng_event_rule_kernel_probe_create(kernel_probe_location); | |
1088 | if (!res.er) { | |
1089 | ERR("Failed to create kprobe event rule."); | |
1090 | goto error; | |
1091 | } | |
1092 | ||
1093 | event_rule_status = lttng_event_rule_kernel_probe_set_event_name(res.er, tracepoint_name); | |
4624dad0 SM |
1094 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
1095 | ERR("Failed to set kprobe event rule's name to '%s'.", tracepoint_name); | |
1096 | goto error; | |
1097 | } | |
1098 | ||
c3e68e71 JR |
1099 | break; |
1100 | } | |
1101 | case LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION: | |
1102 | { | |
1103 | int ret; | |
1104 | enum lttng_event_rule_status event_rule_status; | |
1105 | ||
1106 | ||
1107 | ret = parse_kernel_function_opts(source, &kernel_function_location); | |
1108 | if (ret) { | |
1109 | ERR("Failed to parse kernel function location."); | |
1110 | goto error; | |
1111 | } | |
1112 | ||
1113 | assert(kernel_function_location); | |
1114 | res.er = lttng_event_rule_kernel_function_create(kernel_function_location); | |
1115 | if (!res.er) { | |
1116 | ERR("Failed to create kfunction event rule."); | |
1117 | goto error; | |
1118 | } | |
1119 | ||
1120 | event_rule_status = lttng_event_rule_kernel_function_set_event_name(res.er, tracepoint_name); | |
4624dad0 | 1121 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
c3e68e71 | 1122 | ERR("Failed to set kfunction event rule's name to '%s'.", tracepoint_name); |
4624dad0 SM |
1123 | goto error; |
1124 | } | |
1125 | ||
1126 | break; | |
1127 | } | |
c3e68e71 | 1128 | case LTTNG_EVENT_RULE_TYPE_USERSPACE_PROBE: |
4624dad0 SM |
1129 | { |
1130 | int ret; | |
1131 | enum lttng_event_rule_status event_rule_status; | |
1132 | ||
1133 | ret = parse_userspace_probe_opts( | |
1134 | source, &userspace_probe_location); | |
1135 | if (ret) { | |
1136 | ERR("Failed to parse user space probe location."); | |
1137 | goto error; | |
1138 | } | |
1139 | ||
c3e68e71 | 1140 | res.er = lttng_event_rule_userspace_probe_create(userspace_probe_location); |
20a01d15 SM |
1141 | if (!res.er) { |
1142 | ERR("Failed to create userspace probe event rule."); | |
4624dad0 SM |
1143 | goto error; |
1144 | } | |
1145 | ||
c3e68e71 | 1146 | event_rule_status = lttng_event_rule_userspace_probe_set_event_name( |
20a01d15 | 1147 | res.er, tracepoint_name); |
4624dad0 SM |
1148 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
1149 | ERR("Failed to set user space probe event rule's name to '%s'.", | |
1150 | tracepoint_name); | |
1151 | goto error; | |
1152 | } | |
1153 | ||
1154 | break; | |
1155 | } | |
1156 | case LTTNG_EVENT_RULE_TYPE_SYSCALL: | |
1157 | { | |
1158 | enum lttng_event_rule_status event_rule_status; | |
1159 | ||
20a01d15 SM |
1160 | res.er = lttng_event_rule_syscall_create(); |
1161 | if (!res.er) { | |
4624dad0 SM |
1162 | ERR("Failed to create syscall event rule."); |
1163 | goto error; | |
1164 | } | |
1165 | ||
1166 | event_rule_status = lttng_event_rule_syscall_set_pattern( | |
20a01d15 | 1167 | res.er, tracepoint_name); |
4624dad0 SM |
1168 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
1169 | ERR("Failed to set syscall event rule's pattern to '%s'.", | |
1170 | tracepoint_name); | |
1171 | goto error; | |
1172 | } | |
1173 | ||
1174 | if (filter) { | |
1175 | event_rule_status = lttng_event_rule_syscall_set_filter( | |
20a01d15 | 1176 | res.er, filter); |
4624dad0 SM |
1177 | if (event_rule_status != LTTNG_EVENT_RULE_STATUS_OK) { |
1178 | ERR("Failed to set syscall event rule's filter to '%s'.", | |
1179 | filter); | |
1180 | goto error; | |
1181 | } | |
1182 | } | |
1183 | ||
1184 | break; | |
1185 | } | |
1186 | default: | |
1187 | abort(); | |
1188 | goto error; | |
1189 | } | |
1190 | ||
1191 | goto end; | |
1192 | ||
1193 | error: | |
20a01d15 SM |
1194 | lttng_event_rule_destroy(res.er); |
1195 | res.er = NULL; | |
1196 | lttng_dynamic_pointer_array_reset(&res.capture_descriptors); | |
4624dad0 SM |
1197 | |
1198 | end: | |
20a01d15 SM |
1199 | if (parser_ctx) { |
1200 | filter_parser_ctx_free(parser_ctx); | |
1201 | } | |
1202 | ||
1203 | lttng_event_expr_destroy(event_expr); | |
4624dad0 SM |
1204 | argpar_item_destroy(item); |
1205 | free(error); | |
1206 | argpar_state_destroy(state); | |
1207 | free(filter); | |
1208 | free(exclude); | |
1209 | free(loglevel_str); | |
6e61d0fa | 1210 | free(source); |
4624dad0 SM |
1211 | strutils_free_null_terminated_array_of_strings(exclusion_list); |
1212 | lttng_kernel_probe_location_destroy(kernel_probe_location); | |
1213 | lttng_userspace_probe_location_destroy(userspace_probe_location); | |
c3e68e71 | 1214 | lttng_log_level_rule_destroy(log_level_rule); |
20a01d15 | 1215 | return res; |
4624dad0 SM |
1216 | } |
1217 | ||
1218 | static | |
1219 | struct lttng_condition *handle_condition_event(int *argc, const char ***argv) | |
1220 | { | |
20a01d15 | 1221 | struct parse_event_rule_res res; |
4624dad0 | 1222 | struct lttng_condition *c; |
20a01d15 | 1223 | size_t i; |
4624dad0 | 1224 | |
20a01d15 SM |
1225 | res = parse_event_rule(argc, argv); |
1226 | if (!res.er) { | |
4624dad0 | 1227 | c = NULL; |
20a01d15 | 1228 | goto error; |
4624dad0 SM |
1229 | } |
1230 | ||
c3e68e71 | 1231 | c = lttng_condition_on_event_create(res.er); |
20a01d15 SM |
1232 | lttng_event_rule_destroy(res.er); |
1233 | res.er = NULL; | |
4624dad0 | 1234 | if (!c) { |
20a01d15 SM |
1235 | goto error; |
1236 | } | |
1237 | ||
1238 | for (i = 0; i < lttng_dynamic_pointer_array_get_count(&res.capture_descriptors); | |
1239 | i++) { | |
1240 | enum lttng_condition_status status; | |
1241 | struct lttng_event_expr **expr = | |
1242 | lttng_dynamic_array_get_element( | |
1243 | &res.capture_descriptors.array, i); | |
1244 | ||
1245 | assert(expr); | |
1246 | assert(*expr); | |
c3e68e71 | 1247 | status = lttng_condition_on_event_append_capture_descriptor( |
20a01d15 SM |
1248 | c, *expr); |
1249 | if (status != LTTNG_CONDITION_STATUS_OK) { | |
c3e68e71 JR |
1250 | if (status == LTTNG_CONDITION_STATUS_UNSUPPORTED) { |
1251 | ERR("The capture feature is unsupported by the event-rule type"); | |
1252 | } | |
20a01d15 SM |
1253 | goto error; |
1254 | } | |
1255 | ||
1256 | /* Ownership of event expression moved to `c` */ | |
1257 | *expr = NULL; | |
4624dad0 SM |
1258 | } |
1259 | ||
20a01d15 SM |
1260 | goto end; |
1261 | ||
1262 | error: | |
1263 | lttng_condition_destroy(c); | |
1264 | c = NULL; | |
1265 | ||
4624dad0 | 1266 | end: |
20a01d15 SM |
1267 | lttng_dynamic_pointer_array_reset(&res.capture_descriptors); |
1268 | lttng_event_rule_destroy(res.er); | |
4624dad0 SM |
1269 | return c; |
1270 | } | |
1271 | ||
1272 | static | |
1273 | struct lttng_condition *handle_condition_session_consumed_size(int *argc, const char ***argv) | |
1274 | { | |
1275 | struct lttng_condition *cond = NULL; | |
1276 | struct argpar_state *state = NULL; | |
1277 | struct argpar_item *item = NULL; | |
1278 | const char *threshold_arg = NULL; | |
1279 | const char *session_name_arg = NULL; | |
1280 | uint64_t threshold; | |
1281 | char *error = NULL; | |
1282 | enum lttng_condition_status condition_status; | |
1283 | ||
1284 | state = argpar_state_create(*argc, *argv, event_rule_opt_descrs); | |
1285 | if (!state) { | |
1286 | ERR("Failed to allocate an argpar state."); | |
1287 | goto error; | |
1288 | } | |
1289 | ||
1290 | while (true) { | |
1291 | enum argpar_state_parse_next_status status; | |
1292 | ||
1293 | ARGPAR_ITEM_DESTROY_AND_RESET(item); | |
1294 | status = argpar_state_parse_next(state, &item, &error); | |
1295 | if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR) { | |
1296 | ERR("%s", error); | |
1297 | goto error; | |
1298 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR_UNKNOWN_OPT) { | |
1299 | /* Just stop parsing here. */ | |
1300 | break; | |
1301 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_END) { | |
1302 | break; | |
1303 | } | |
1304 | ||
1305 | assert(status == ARGPAR_STATE_PARSE_NEXT_STATUS_OK); | |
1306 | ||
1307 | if (item->type == ARGPAR_ITEM_TYPE_OPT) { | |
1308 | const struct argpar_item_opt *item_opt = | |
1309 | (const struct argpar_item_opt *) item; | |
1310 | ||
1311 | switch (item_opt->descr->id) { | |
1312 | default: | |
1313 | abort(); | |
1314 | } | |
1315 | } else { | |
1316 | const struct argpar_item_non_opt *item_non_opt; | |
1317 | ||
1318 | assert(item->type == ARGPAR_ITEM_TYPE_NON_OPT); | |
1319 | ||
1320 | item_non_opt = (const struct argpar_item_non_opt *) item; | |
1321 | ||
1322 | switch (item_non_opt->non_opt_index) { | |
1323 | case 0: | |
1324 | session_name_arg = item_non_opt->arg; | |
1325 | break; | |
1326 | case 1: | |
1327 | threshold_arg = item_non_opt->arg; | |
1328 | break; | |
1329 | default: | |
1330 | ERR("Unexpected argument `%s`.", | |
1331 | item_non_opt->arg); | |
1332 | goto error; | |
1333 | } | |
1334 | } | |
1335 | } | |
1336 | ||
1337 | *argc -= argpar_state_get_ingested_orig_args(state); | |
1338 | *argv += argpar_state_get_ingested_orig_args(state); | |
1339 | ||
1340 | if (!session_name_arg) { | |
1341 | ERR("Missing session name argument."); | |
1342 | goto error; | |
1343 | } | |
1344 | ||
1345 | if (!threshold_arg) { | |
1346 | ERR("Missing threshold argument."); | |
1347 | goto error; | |
1348 | } | |
1349 | ||
1350 | if (utils_parse_size_suffix(threshold_arg, &threshold) != 0) { | |
1351 | ERR("Failed to parse `%s` as a size.", threshold_arg); | |
1352 | goto error; | |
1353 | } | |
1354 | ||
1355 | cond = lttng_condition_session_consumed_size_create(); | |
1356 | if (!cond) { | |
1357 | ERR("Failed to allocate a session consumed size condition."); | |
1358 | goto error; | |
1359 | } | |
1360 | ||
1361 | condition_status = lttng_condition_session_consumed_size_set_session_name( | |
1362 | cond, session_name_arg); | |
1363 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { | |
1364 | ERR("Failed to set session consumed size condition's session name to '%s'.", | |
1365 | session_name_arg); | |
1366 | goto error; | |
1367 | } | |
1368 | ||
1369 | condition_status = lttng_condition_session_consumed_size_set_threshold( | |
1370 | cond, threshold); | |
1371 | if (condition_status != LTTNG_CONDITION_STATUS_OK) { | |
1372 | ERR("Failed to set session consumed size condition threshold."); | |
1373 | goto error; | |
1374 | } | |
1375 | ||
1376 | goto end; | |
1377 | ||
1378 | error: | |
1379 | lttng_condition_destroy(cond); | |
1380 | cond = NULL; | |
1381 | ||
1382 | end: | |
1383 | argpar_state_destroy(state); | |
1384 | argpar_item_destroy(item); | |
1385 | free(error); | |
1386 | return cond; | |
1387 | } | |
1388 | ||
1389 | static | |
1390 | struct lttng_condition *handle_condition_buffer_usage_high(int *argc, const char ***argv) | |
1391 | { | |
1392 | ERR("High buffer usage threshold conditions are unsupported for the moment."); | |
1393 | return NULL; | |
1394 | } | |
1395 | ||
1396 | static | |
1397 | struct lttng_condition *handle_condition_buffer_usage_low(int *argc, const char ***argv) | |
1398 | { | |
1399 | ERR("Low buffer usage threshold conditions are unsupported for the moment."); | |
1400 | return NULL; | |
1401 | } | |
1402 | ||
1403 | static | |
1404 | struct lttng_condition *handle_condition_session_rotation_ongoing(int *argc, const char ***argv) | |
1405 | { | |
1406 | ERR("Session rotation ongoing conditions are unsupported for the moment."); | |
1407 | return NULL; | |
1408 | } | |
1409 | ||
1410 | static | |
1411 | struct lttng_condition *handle_condition_session_rotation_completed(int *argc, const char ***argv) | |
1412 | { | |
1413 | ERR("Session rotation completed conditions are unsupported for the moment."); | |
1414 | return NULL; | |
1415 | } | |
1416 | ||
1417 | struct condition_descr { | |
1418 | const char *name; | |
1419 | struct lttng_condition *(*handler) (int *argc, const char ***argv); | |
1420 | }; | |
1421 | ||
1422 | static const | |
1423 | struct condition_descr condition_descrs[] = { | |
1424 | { "on-event", handle_condition_event }, | |
1425 | { "on-session-consumed-size", handle_condition_session_consumed_size }, | |
1426 | { "on-buffer-usage-high", handle_condition_buffer_usage_high }, | |
1427 | { "on-buffer-usage-low", handle_condition_buffer_usage_low }, | |
1428 | { "on-session-rotation-ongoing", handle_condition_session_rotation_ongoing }, | |
1429 | { "on-session-rotation-completed", handle_condition_session_rotation_completed }, | |
1430 | }; | |
1431 | ||
1432 | static | |
1433 | struct lttng_condition *parse_condition(int *argc, const char ***argv) | |
1434 | { | |
1435 | int i; | |
1436 | struct lttng_condition *cond; | |
1437 | const char *condition_name; | |
1438 | const struct condition_descr *descr = NULL; | |
1439 | ||
1440 | if (*argc == 0) { | |
1441 | ERR("Missing condition name."); | |
1442 | goto error; | |
1443 | } | |
1444 | ||
1445 | condition_name = (*argv)[0]; | |
1446 | ||
1447 | (*argc)--; | |
1448 | (*argv)++; | |
1449 | ||
1450 | for (i = 0; i < ARRAY_SIZE(condition_descrs); i++) { | |
1451 | if (strcmp(condition_name, condition_descrs[i].name) == 0) { | |
1452 | descr = &condition_descrs[i]; | |
1453 | break; | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | if (!descr) { | |
1458 | ERR("Unknown condition name '%s'", condition_name); | |
1459 | goto error; | |
1460 | } | |
1461 | ||
1462 | cond = descr->handler(argc, argv); | |
1463 | if (!cond) { | |
1464 | /* The handler has already printed an error message. */ | |
1465 | goto error; | |
1466 | } | |
1467 | ||
1468 | goto end; | |
1469 | error: | |
1470 | cond = NULL; | |
1471 | end: | |
1472 | return cond; | |
1473 | } | |
1474 | ||
1475 | ||
1476 | static | |
1477 | struct lttng_action *handle_action_notify(int *argc, const char ***argv) | |
1478 | { | |
1479 | return lttng_action_notify_create(); | |
1480 | } | |
1481 | ||
1482 | static const struct argpar_opt_descr no_opt_descrs[] = { | |
1483 | ARGPAR_OPT_DESCR_SENTINEL | |
1484 | }; | |
1485 | ||
1486 | /* | |
1487 | * Generic handler for a kind of action that takes a session name as its sole | |
1488 | * argument. | |
1489 | */ | |
1490 | ||
1491 | static | |
1492 | struct lttng_action *handle_action_simple_session( | |
1493 | int *argc, const char ***argv, | |
1494 | struct lttng_action *(*create_action_cb)(void), | |
1495 | enum lttng_action_status (*set_session_name_cb)(struct lttng_action *, const char *), | |
1496 | const char *action_name) | |
1497 | { | |
1498 | struct lttng_action *action = NULL; | |
1499 | struct argpar_state *state = NULL; | |
1500 | struct argpar_item *item = NULL; | |
1501 | const char *session_name_arg = NULL; | |
1502 | char *error = NULL; | |
1503 | enum lttng_action_status action_status; | |
1504 | ||
1505 | state = argpar_state_create(*argc, *argv, no_opt_descrs); | |
1506 | if (!state) { | |
1507 | ERR("Failed to allocate an argpar state."); | |
1508 | goto error; | |
1509 | } | |
1510 | ||
1511 | while (true) { | |
1512 | enum argpar_state_parse_next_status status; | |
1513 | const struct argpar_item_non_opt *item_non_opt; | |
1514 | ||
1515 | ARGPAR_ITEM_DESTROY_AND_RESET(item); | |
1516 | status = argpar_state_parse_next(state, &item, &error); | |
1517 | if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR) { | |
1518 | ERR("%s", error); | |
1519 | goto error; | |
1520 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR_UNKNOWN_OPT) { | |
1521 | /* Just stop parsing here. */ | |
1522 | break; | |
1523 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_END) { | |
1524 | break; | |
1525 | } | |
1526 | ||
1527 | assert(status == ARGPAR_STATE_PARSE_NEXT_STATUS_OK); | |
1528 | assert(item->type == ARGPAR_ITEM_TYPE_NON_OPT); | |
1529 | ||
1530 | item_non_opt = (const struct argpar_item_non_opt *) item; | |
1531 | ||
1532 | switch (item_non_opt->non_opt_index) { | |
1533 | case 0: | |
1534 | session_name_arg = item_non_opt->arg; | |
1535 | break; | |
1536 | default: | |
1537 | ERR("Unexpected argument `%s`.", item_non_opt->arg); | |
1538 | goto error; | |
1539 | } | |
1540 | } | |
1541 | ||
1542 | *argc -= argpar_state_get_ingested_orig_args(state); | |
1543 | *argv += argpar_state_get_ingested_orig_args(state); | |
1544 | ||
1545 | if (!session_name_arg) { | |
1546 | ERR("Missing session name."); | |
1547 | goto error; | |
1548 | } | |
1549 | ||
1550 | action = create_action_cb(); | |
1551 | if (!action) { | |
1552 | ERR("Failed to allocate %s session action.", action_name); | |
1553 | goto error; | |
1554 | } | |
1555 | ||
1556 | action_status = set_session_name_cb(action, session_name_arg); | |
1557 | if (action_status != LTTNG_ACTION_STATUS_OK) { | |
1558 | ERR("Failed to set action %s session's session name to '%s'.", | |
1559 | action_name, session_name_arg); | |
1560 | goto error; | |
1561 | } | |
1562 | ||
1563 | goto end; | |
1564 | ||
1565 | error: | |
1566 | lttng_action_destroy(action); | |
1567 | action = NULL; | |
97abbc84 | 1568 | argpar_item_destroy(item); |
4624dad0 | 1569 | end: |
cb1b81ea | 1570 | free(error); |
b78ef509 | 1571 | argpar_state_destroy(state); |
4624dad0 SM |
1572 | return action; |
1573 | } | |
1574 | ||
1575 | static | |
1576 | struct lttng_action *handle_action_start_session(int *argc, | |
1577 | const char ***argv) | |
1578 | { | |
1579 | return handle_action_simple_session(argc, argv, | |
1580 | lttng_action_start_session_create, | |
1581 | lttng_action_start_session_set_session_name, | |
1582 | "start"); | |
1583 | } | |
1584 | ||
1585 | static | |
1586 | struct lttng_action *handle_action_stop_session(int *argc, | |
1587 | const char ***argv) | |
1588 | { | |
1589 | return handle_action_simple_session(argc, argv, | |
1590 | lttng_action_stop_session_create, | |
1591 | lttng_action_stop_session_set_session_name, | |
1592 | "stop"); | |
1593 | } | |
1594 | ||
1595 | static | |
1596 | struct lttng_action *handle_action_rotate_session(int *argc, | |
1597 | const char ***argv) | |
1598 | { | |
1599 | return handle_action_simple_session(argc, argv, | |
1600 | lttng_action_rotate_session_create, | |
1601 | lttng_action_rotate_session_set_session_name, | |
1602 | "rotate"); | |
1603 | } | |
1604 | ||
1605 | static const struct argpar_opt_descr snapshot_action_opt_descrs[] = { | |
1606 | { OPT_NAME, 'n', "name", true }, | |
1607 | { OPT_MAX_SIZE, 'm', "max-size", true }, | |
1608 | { OPT_CTRL_URL, '\0', "ctrl-url", true }, | |
1609 | { OPT_DATA_URL, '\0', "data-url", true }, | |
1610 | { OPT_URL, '\0', "url", true }, | |
1611 | { OPT_PATH, '\0', "path", true }, | |
1612 | ARGPAR_OPT_DESCR_SENTINEL | |
1613 | }; | |
1614 | ||
1615 | static | |
1616 | struct lttng_action *handle_action_snapshot_session(int *argc, | |
1617 | const char ***argv) | |
1618 | { | |
1619 | struct lttng_action *action = NULL; | |
1620 | struct argpar_state *state = NULL; | |
1621 | struct argpar_item *item = NULL; | |
1622 | const char *session_name_arg = NULL; | |
1623 | char *snapshot_name_arg = NULL; | |
1624 | char *ctrl_url_arg = NULL; | |
1625 | char *data_url_arg = NULL; | |
1626 | char *max_size_arg = NULL; | |
1627 | char *url_arg = NULL; | |
1628 | char *path_arg = NULL; | |
1629 | char *error = NULL; | |
1630 | enum lttng_action_status action_status; | |
1631 | struct lttng_snapshot_output *snapshot_output = NULL; | |
1632 | int ret; | |
1633 | unsigned int locations_specified = 0; | |
1634 | ||
1635 | state = argpar_state_create(*argc, *argv, snapshot_action_opt_descrs); | |
1636 | if (!state) { | |
1637 | ERR("Failed to allocate an argpar state."); | |
1638 | goto error; | |
1639 | } | |
1640 | ||
1641 | while (true) { | |
1642 | enum argpar_state_parse_next_status status; | |
1643 | ||
1644 | ARGPAR_ITEM_DESTROY_AND_RESET(item); | |
1645 | status = argpar_state_parse_next(state, &item, &error); | |
1646 | if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR) { | |
1647 | ERR("%s", error); | |
1648 | goto error; | |
1649 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR_UNKNOWN_OPT) { | |
1650 | /* Just stop parsing here. */ | |
1651 | break; | |
1652 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_END) { | |
1653 | break; | |
1654 | } | |
1655 | ||
1656 | assert(status == ARGPAR_STATE_PARSE_NEXT_STATUS_OK); | |
1657 | ||
1658 | if (item->type == ARGPAR_ITEM_TYPE_OPT) { | |
1659 | const struct argpar_item_opt *item_opt = | |
1660 | (const struct argpar_item_opt *) item; | |
1661 | ||
1662 | switch (item_opt->descr->id) { | |
1663 | case OPT_NAME: | |
1664 | if (!assign_string(&snapshot_name_arg, item_opt->arg, "--name/-n")) { | |
1665 | goto error; | |
1666 | } | |
1667 | ||
1668 | break; | |
1669 | case OPT_MAX_SIZE: | |
1670 | if (!assign_string(&max_size_arg, item_opt->arg, "--max-size/-m")) { | |
1671 | goto error; | |
1672 | } | |
1673 | ||
1674 | break; | |
1675 | case OPT_CTRL_URL: | |
1676 | if (!assign_string(&ctrl_url_arg, item_opt->arg, "--ctrl-url")) { | |
1677 | goto error; | |
1678 | } | |
1679 | ||
1680 | break; | |
1681 | case OPT_DATA_URL: | |
1682 | if (!assign_string(&data_url_arg, item_opt->arg, "--data-url")) { | |
1683 | goto error; | |
1684 | } | |
1685 | ||
1686 | break; | |
1687 | case OPT_URL: | |
1688 | if (!assign_string(&url_arg, item_opt->arg, "--url")) { | |
1689 | goto error; | |
1690 | } | |
1691 | ||
1692 | break; | |
1693 | case OPT_PATH: | |
1694 | if (!assign_string(&path_arg, item_opt->arg, "--path")) { | |
1695 | goto error; | |
1696 | } | |
1697 | ||
1698 | break; | |
1699 | default: | |
1700 | abort(); | |
1701 | } | |
1702 | } else { | |
1703 | const struct argpar_item_non_opt *item_non_opt; | |
1704 | ||
1705 | assert(item->type == ARGPAR_ITEM_TYPE_NON_OPT); | |
1706 | ||
1707 | item_non_opt = (const struct argpar_item_non_opt *) item; | |
1708 | ||
1709 | switch (item_non_opt->non_opt_index) { | |
1710 | case 0: | |
1711 | session_name_arg = item_non_opt->arg; | |
1712 | break; | |
1713 | default: | |
1714 | ERR("Unexpected argument `%s`.", | |
1715 | item_non_opt->arg); | |
1716 | goto error; | |
1717 | } | |
1718 | } | |
1719 | } | |
1720 | ||
1721 | *argc -= argpar_state_get_ingested_orig_args(state); | |
1722 | *argv += argpar_state_get_ingested_orig_args(state); | |
1723 | ||
1724 | if (!session_name_arg) { | |
1725 | ERR("Missing session name."); | |
1726 | goto error; | |
1727 | } | |
1728 | ||
1729 | /* --ctrl-url and --data-url must come in pair. */ | |
1730 | if (ctrl_url_arg && !data_url_arg) { | |
1731 | ERR("--ctrl-url is specified, but --data-url is missing."); | |
1732 | goto error; | |
1733 | } | |
1734 | ||
1735 | if (!ctrl_url_arg && data_url_arg) { | |
1736 | ERR("--data-url is specified, but --ctrl-url is missing."); | |
1737 | goto error; | |
1738 | } | |
1739 | ||
1740 | locations_specified += !!(ctrl_url_arg || data_url_arg); | |
1741 | locations_specified += !!url_arg; | |
1742 | locations_specified += !!path_arg; | |
1743 | ||
1744 | /* --ctrl-url/--data-url, --url and --path are mutually exclusive. */ | |
1745 | if (locations_specified > 1) { | |
1746 | ERR("The --ctrl-url/--data-url, --url, and --path options can't be used together."); | |
1747 | goto error; | |
1748 | } | |
1749 | ||
1750 | /* | |
1751 | * Did the user specify an option that implies using a | |
1752 | * custom/unregistered output? | |
1753 | */ | |
1754 | if (url_arg || ctrl_url_arg || path_arg) { | |
1755 | snapshot_output = lttng_snapshot_output_create(); | |
1756 | if (!snapshot_output) { | |
1757 | ERR("Failed to allocate a snapshot output."); | |
1758 | goto error; | |
1759 | } | |
1760 | } | |
1761 | ||
1762 | action = lttng_action_snapshot_session_create(); | |
1763 | if (!action) { | |
1764 | ERR("Failed to allocate snapshot session action."); | |
1765 | goto error; | |
1766 | } | |
1767 | ||
1768 | action_status = lttng_action_snapshot_session_set_session_name( | |
1769 | action, session_name_arg); | |
1770 | if (action_status != LTTNG_ACTION_STATUS_OK) { | |
1771 | ERR("Failed to set action snapshot session's session name to '%s'.", | |
1772 | session_name_arg); | |
1773 | goto error; | |
1774 | } | |
1775 | ||
1776 | if (snapshot_name_arg) { | |
1777 | if (!snapshot_output) { | |
1778 | ERR("Can't provide a snapshot output name without a snapshot output destination."); | |
1779 | goto error; | |
1780 | } | |
1781 | ||
1782 | ret = lttng_snapshot_output_set_name( | |
1783 | snapshot_name_arg, snapshot_output); | |
1784 | if (ret != 0) { | |
1785 | ERR("Failed to set name of snapshot output."); | |
1786 | goto error; | |
1787 | } | |
1788 | } | |
1789 | ||
1790 | if (max_size_arg) { | |
1791 | uint64_t max_size; | |
1792 | ||
1793 | if (!snapshot_output) { | |
1794 | ERR("Can't provide a snapshot output max size without a snapshot output destination."); | |
1795 | goto error; | |
1796 | } | |
1797 | ||
1798 | ret = utils_parse_size_suffix(max_size_arg, &max_size); | |
1799 | if (ret != 0) { | |
1800 | ERR("Failed to parse `%s` as a size.", max_size_arg); | |
1801 | goto error; | |
1802 | } | |
1803 | ||
1804 | ret = lttng_snapshot_output_set_size(max_size, snapshot_output); | |
1805 | if (ret != 0) { | |
1806 | ERR("Failed to set snapshot output's max size to %" PRIu64 " bytes.", | |
1807 | max_size); | |
1808 | goto error; | |
1809 | } | |
1810 | } | |
1811 | ||
1812 | if (url_arg) { | |
1813 | int num_uris; | |
1814 | struct lttng_uri *uris; | |
1815 | ||
1816 | if (!strstr(url_arg, "://")) { | |
1817 | ERR("Failed to parse '%s' as an URL.", url_arg); | |
1818 | goto error; | |
1819 | } | |
1820 | ||
1821 | num_uris = uri_parse_str_urls(url_arg, NULL, &uris); | |
1822 | if (num_uris < 1) { | |
1823 | ERR("Failed to parse '%s' as an URL.", url_arg); | |
1824 | goto error; | |
1825 | } | |
1826 | ||
1827 | if (uris[0].dtype == LTTNG_DST_PATH) { | |
1828 | ret = lttng_snapshot_output_set_local_path( | |
1829 | uris[0].dst.path, snapshot_output); | |
1830 | free(uris); | |
1831 | if (ret != 0) { | |
1832 | ERR("Failed to assign '%s' as a local destination.", | |
1833 | url_arg); | |
1834 | goto error; | |
1835 | } | |
1836 | } else { | |
1837 | ret = lttng_snapshot_output_set_network_url( | |
1838 | url_arg, snapshot_output); | |
1839 | free(uris); | |
1840 | if (ret != 0) { | |
1841 | ERR("Failed to assign '%s' as a network URL.", | |
1842 | url_arg); | |
1843 | goto error; | |
1844 | } | |
1845 | } | |
1846 | } | |
1847 | ||
1848 | if (path_arg) { | |
1849 | ret = lttng_snapshot_output_set_local_path( | |
1850 | path_arg, snapshot_output); | |
1851 | if (ret != 0) { | |
1852 | ERR("Failed to parse '%s' as a local path.", path_arg); | |
1853 | goto error; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | if (ctrl_url_arg) { | |
1858 | /* | |
1859 | * Two argument form, network output with separate control and | |
1860 | * data URLs. | |
1861 | */ | |
1862 | ret = lttng_snapshot_output_set_network_urls( | |
1863 | ctrl_url_arg, data_url_arg, snapshot_output); | |
1864 | if (ret != 0) { | |
1865 | ERR("Failed to parse `%s` and `%s` as control and data URLs.", | |
1866 | ctrl_url_arg, data_url_arg); | |
1867 | goto error; | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | if (snapshot_output) { | |
1872 | action_status = lttng_action_snapshot_session_set_output( | |
1873 | action, snapshot_output); | |
1874 | if (action_status != LTTNG_ACTION_STATUS_OK) { | |
1875 | ERR("Failed to set snapshot session action's output."); | |
1876 | goto error; | |
1877 | } | |
1878 | ||
1879 | /* Ownership of `snapshot_output` has been transferred to the action. */ | |
1880 | snapshot_output = NULL; | |
1881 | } | |
1882 | ||
1883 | goto end; | |
1884 | ||
1885 | error: | |
1886 | lttng_action_destroy(action); | |
1887 | action = NULL; | |
1888 | free(error); | |
1889 | end: | |
1890 | free(snapshot_name_arg); | |
1891 | free(path_arg); | |
1892 | free(url_arg); | |
1893 | free(ctrl_url_arg); | |
1894 | free(data_url_arg); | |
1895 | free(snapshot_output); | |
f6b73530 | 1896 | free(max_size_arg); |
4624dad0 | 1897 | argpar_state_destroy(state); |
97abbc84 | 1898 | argpar_item_destroy(item); |
4624dad0 SM |
1899 | return action; |
1900 | } | |
1901 | ||
c3e68e71 JR |
1902 | static const struct argpar_opt_descr incr_value_action_opt_descrs[] = { |
1903 | { OPT_SESSION_NAME, 's', "session", true }, | |
1904 | { OPT_MAP_NAME, 'm', "map", true }, | |
1905 | { OPT_KEY, '\0', "key", true }, | |
1906 | ARGPAR_OPT_DESCR_SENTINEL | |
1907 | }; | |
1908 | ||
1909 | static | |
1910 | struct lttng_action *handle_action_incr_value(int *argc, | |
1911 | const char ***argv) | |
1912 | { | |
1913 | struct lttng_action *action = NULL; | |
1914 | struct argpar_state *state = NULL; | |
1915 | struct argpar_item *item = NULL; | |
1916 | struct lttng_map_key *key = NULL; | |
1917 | char *session_name_arg = NULL, *map_name_arg = NULL; | |
1918 | char *key_arg = NULL; | |
1919 | char *error = NULL; | |
1920 | enum lttng_action_status action_status; | |
1921 | ||
1922 | state = argpar_state_create(*argc, *argv, incr_value_action_opt_descrs); | |
1923 | if (!state) { | |
1924 | ERR("Failed to allocate an argpar state."); | |
1925 | goto error; | |
1926 | } | |
1927 | ||
1928 | while (true) { | |
1929 | enum argpar_state_parse_next_status status; | |
1930 | ||
1931 | ARGPAR_ITEM_DESTROY_AND_RESET(item); | |
1932 | status = argpar_state_parse_next(state, &item, &error); | |
1933 | if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR) { | |
1934 | ERR("%s", error); | |
1935 | goto error; | |
1936 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR_UNKNOWN_OPT) { | |
1937 | /* Just stop parsing here. */ | |
1938 | break; | |
1939 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_END) { | |
1940 | break; | |
1941 | } | |
1942 | ||
1943 | assert(status == ARGPAR_STATE_PARSE_NEXT_STATUS_OK); | |
1944 | ||
1945 | if (item->type == ARGPAR_ITEM_TYPE_OPT) { | |
1946 | struct argpar_item_opt *item_opt = | |
1947 | (struct argpar_item_opt *) item; | |
1948 | ||
1949 | switch (item_opt->descr->id) { | |
1950 | case OPT_SESSION_NAME: | |
1951 | if (!assign_string(&session_name_arg, item_opt->arg, "--session/-s")) { | |
1952 | goto error; | |
1953 | } | |
1954 | break; | |
1955 | case OPT_MAP_NAME: | |
1956 | if (!assign_string(&map_name_arg, item_opt->arg, "--map/-m")) { | |
1957 | goto error; | |
1958 | } | |
1959 | break; | |
1960 | case OPT_KEY: | |
1961 | if (!assign_string(&key_arg, item_opt->arg, "--key")) { | |
1962 | goto error; | |
1963 | } | |
1964 | break; | |
1965 | default: | |
1966 | abort(); | |
1967 | } | |
1968 | } | |
1969 | } | |
1970 | ||
1971 | *argc -= argpar_state_get_ingested_orig_args(state); | |
1972 | *argv += argpar_state_get_ingested_orig_args(state); | |
1973 | ||
1974 | if (!session_name_arg) { | |
1975 | ERR("Missing session name."); | |
1976 | goto error; | |
1977 | } | |
1978 | ||
1979 | if (!map_name_arg) { | |
1980 | ERR("Missing map name."); | |
1981 | goto error; | |
1982 | } | |
1983 | ||
1984 | if (!key_arg) { | |
1985 | ERR("Missing key"); | |
1986 | goto error; | |
1987 | } | |
1988 | ||
1989 | key = lttng_map_key_parse_from_string(key_arg); | |
1990 | if (!key) { | |
1991 | ERR("Error parsing key argument"); | |
1992 | goto error; | |
1993 | } | |
1994 | ||
1995 | action = lttng_action_incr_value_create(); | |
1996 | if (!action) { | |
1997 | ERR("Failed to allocate incr-value action."); | |
1998 | goto error; | |
1999 | } | |
2000 | ||
2001 | action_status = lttng_action_incr_value_set_session_name(action, | |
2002 | session_name_arg); | |
2003 | if (action_status != LTTNG_ACTION_STATUS_OK) { | |
2004 | ERR("Failed to set action incr-value's session name."); | |
2005 | goto error; | |
2006 | } | |
2007 | ||
2008 | action_status = lttng_action_incr_value_set_map_name(action, | |
2009 | map_name_arg); | |
2010 | if (action_status != LTTNG_ACTION_STATUS_OK) { | |
2011 | ERR("Failed to set action incr-value's map name."); | |
2012 | goto error; | |
2013 | } | |
2014 | ||
2015 | action_status = lttng_action_incr_value_set_key(action, key); | |
2016 | if (action_status != LTTNG_ACTION_STATUS_OK) { | |
2017 | ERR("Failed to set action incr-value's key"); | |
2018 | goto error; | |
2019 | } | |
2020 | ||
2021 | goto end; | |
2022 | ||
2023 | error: | |
2024 | lttng_action_destroy(action); | |
2025 | action = NULL; | |
2026 | ||
2027 | end: | |
2028 | lttng_map_key_destroy(key); | |
2029 | free(session_name_arg); | |
2030 | free(map_name_arg); | |
2031 | free(key_arg); | |
2032 | return action; | |
2033 | } | |
2034 | ||
4624dad0 SM |
2035 | struct action_descr { |
2036 | const char *name; | |
2037 | struct lttng_action *(*handler) (int *argc, const char ***argv); | |
2038 | }; | |
2039 | ||
2040 | static const | |
2041 | struct action_descr action_descrs[] = { | |
2042 | { "notify", handle_action_notify }, | |
2043 | { "start-session", handle_action_start_session }, | |
2044 | { "stop-session", handle_action_stop_session }, | |
2045 | { "rotate-session", handle_action_rotate_session }, | |
2046 | { "snapshot-session", handle_action_snapshot_session }, | |
c3e68e71 | 2047 | { "incr-value", handle_action_incr_value }, |
4624dad0 SM |
2048 | }; |
2049 | ||
2050 | static | |
2051 | struct lttng_action *parse_action(int *argc, const char ***argv) | |
2052 | { | |
2053 | int i; | |
2054 | struct lttng_action *action; | |
2055 | const char *action_name; | |
2056 | const struct action_descr *descr = NULL; | |
2057 | ||
2058 | if (*argc == 0) { | |
2059 | ERR("Missing action name."); | |
2060 | goto error; | |
2061 | } | |
2062 | ||
2063 | action_name = (*argv)[0]; | |
2064 | ||
2065 | (*argc)--; | |
2066 | (*argv)++; | |
2067 | ||
2068 | for (i = 0; i < ARRAY_SIZE(action_descrs); i++) { | |
2069 | if (strcmp(action_name, action_descrs[i].name) == 0) { | |
2070 | descr = &action_descrs[i]; | |
2071 | break; | |
2072 | } | |
2073 | } | |
2074 | ||
2075 | if (!descr) { | |
2076 | ERR("Unknown action name: %s", action_name); | |
2077 | goto error; | |
2078 | } | |
2079 | ||
2080 | action = descr->handler(argc, argv); | |
2081 | if (!action) { | |
2082 | /* The handler has already printed an error message. */ | |
2083 | goto error; | |
2084 | } | |
2085 | ||
2086 | goto end; | |
2087 | error: | |
2088 | action = NULL; | |
2089 | end: | |
2090 | return action; | |
2091 | } | |
2092 | ||
2093 | static const | |
2094 | struct argpar_opt_descr add_trigger_options[] = { | |
2095 | { OPT_HELP, 'h', "help", false }, | |
2096 | { OPT_LIST_OPTIONS, '\0', "list-options", false }, | |
2097 | { OPT_CONDITION, '\0', "condition", false }, | |
2098 | { OPT_ACTION, '\0', "action", false }, | |
2099 | { OPT_ID, '\0', "id", true }, | |
2100 | { OPT_FIRE_ONCE_AFTER, '\0', "fire-once-after", true }, | |
2101 | { OPT_FIRE_EVERY, '\0', "fire-every", true }, | |
2102 | { OPT_USER_ID, '\0', "user-id", true }, | |
2103 | ARGPAR_OPT_DESCR_SENTINEL, | |
2104 | }; | |
2105 | ||
c3e68e71 JR |
2106 | static |
2107 | bool action_is_tracer_executed(const struct lttng_action *action) | |
2108 | { | |
2109 | bool is_tracer_executed; | |
2110 | switch (lttng_action_get_type(action)) { | |
2111 | case LTTNG_ACTION_TYPE_NOTIFY: | |
2112 | case LTTNG_ACTION_TYPE_START_SESSION: | |
2113 | case LTTNG_ACTION_TYPE_STOP_SESSION: | |
2114 | case LTTNG_ACTION_TYPE_ROTATE_SESSION: | |
2115 | case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION: | |
2116 | is_tracer_executed = false; | |
2117 | goto end; | |
2118 | case LTTNG_ACTION_TYPE_INCREMENT_VALUE: | |
2119 | is_tracer_executed = true; | |
2120 | goto end; | |
2121 | case LTTNG_ACTION_TYPE_GROUP: | |
2122 | default: | |
2123 | abort(); | |
2124 | } | |
2125 | ||
2126 | end: | |
2127 | return is_tracer_executed; | |
2128 | } | |
2129 | ||
4624dad0 SM |
2130 | static |
2131 | void lttng_actions_destructor(void *p) | |
2132 | { | |
2133 | struct lttng_action *action = p; | |
2134 | ||
2135 | lttng_action_destroy(action); | |
2136 | } | |
2137 | ||
2138 | int cmd_add_trigger(int argc, const char **argv) | |
2139 | { | |
2140 | int ret; | |
2141 | int my_argc = argc - 1; | |
2142 | const char **my_argv = argv + 1; | |
2143 | struct lttng_condition *condition = NULL; | |
2144 | struct lttng_dynamic_pointer_array actions; | |
2145 | struct argpar_state *argpar_state = NULL; | |
2146 | struct argpar_item *argpar_item = NULL; | |
2147 | struct lttng_action *action_group = NULL; | |
2148 | struct lttng_action *action = NULL; | |
2149 | struct lttng_trigger *trigger = NULL; | |
2150 | char *error = NULL; | |
2151 | char *id = NULL; | |
2152 | int i; | |
2153 | char *fire_once_after_str = NULL; | |
2154 | char *fire_every_str = NULL; | |
2155 | char *user_id = NULL; | |
2156 | ||
2157 | lttng_dynamic_pointer_array_init(&actions, lttng_actions_destructor); | |
2158 | ||
2159 | while (true) { | |
2160 | enum argpar_state_parse_next_status status; | |
2161 | const struct argpar_item_opt *item_opt; | |
2162 | int ingested_args; | |
2163 | ||
2164 | argpar_state_destroy(argpar_state); | |
2165 | argpar_state = argpar_state_create(my_argc, my_argv, | |
2166 | add_trigger_options); | |
2167 | if (!argpar_state) { | |
2168 | ERR("Failed to create argpar state."); | |
2169 | goto error; | |
2170 | } | |
2171 | ||
2172 | ARGPAR_ITEM_DESTROY_AND_RESET(argpar_item); | |
2173 | status = argpar_state_parse_next(argpar_state, &argpar_item, &error); | |
2174 | if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR) { | |
2175 | ERR("%s", error); | |
2176 | goto error; | |
2177 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR_UNKNOWN_OPT) { | |
2178 | ERR("%s", error); | |
2179 | goto error; | |
2180 | } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_END) { | |
2181 | break; | |
2182 | } | |
2183 | ||
2184 | assert(status == ARGPAR_STATE_PARSE_NEXT_STATUS_OK); | |
2185 | ||
2186 | if (argpar_item->type == ARGPAR_ITEM_TYPE_NON_OPT) { | |
2187 | const struct argpar_item_non_opt *item_non_opt = | |
2188 | (const struct argpar_item_non_opt *) | |
2189 | argpar_item; | |
2190 | ||
2191 | ERR("Unexpected argument `%s`.", item_non_opt->arg); | |
2192 | goto error; | |
2193 | } | |
2194 | ||
2195 | item_opt = (const struct argpar_item_opt *) argpar_item; | |
2196 | ||
2197 | ingested_args = argpar_state_get_ingested_orig_args( | |
2198 | argpar_state); | |
2199 | ||
2200 | my_argc -= ingested_args; | |
2201 | my_argv += ingested_args; | |
2202 | ||
2203 | switch (item_opt->descr->id) { | |
2204 | case OPT_HELP: | |
2205 | SHOW_HELP(); | |
2206 | ret = 0; | |
2207 | goto end; | |
2208 | case OPT_LIST_OPTIONS: | |
2209 | list_cmd_options_argpar(stdout, add_trigger_options); | |
2210 | ret = 0; | |
2211 | goto end; | |
2212 | case OPT_CONDITION: | |
2213 | { | |
2214 | if (condition) { | |
2215 | ERR("A --condition was already given."); | |
2216 | goto error; | |
2217 | } | |
2218 | ||
2219 | condition = parse_condition(&my_argc, &my_argv); | |
2220 | if (!condition) { | |
2221 | /* | |
2222 | * An error message was already printed by | |
2223 | * parse_condition. | |
2224 | */ | |
2225 | goto error; | |
2226 | } | |
2227 | ||
2228 | break; | |
2229 | } | |
2230 | case OPT_ACTION: | |
2231 | { | |
2232 | action = parse_action(&my_argc, &my_argv); | |
2233 | if (!action) { | |
2234 | /* | |
2235 | * An error message was already printed by | |
2236 | * parse_condition. | |
2237 | */ | |
2238 | goto error; | |
2239 | } | |
2240 | ||
2241 | ret = lttng_dynamic_pointer_array_add_pointer( | |
2242 | &actions, action); | |
2243 | if (ret) { | |
2244 | ERR("Failed to add pointer to pointer array."); | |
2245 | goto error; | |
2246 | } | |
2247 | ||
2248 | /* Ownership of the action was transferred to the group. */ | |
2249 | action = NULL; | |
2250 | ||
2251 | break; | |
2252 | } | |
2253 | case OPT_ID: | |
2254 | { | |
2255 | if (!assign_string(&id, item_opt->arg, "--id")) { | |
2256 | goto error; | |
2257 | } | |
2258 | ||
2259 | break; | |
2260 | } | |
2261 | case OPT_FIRE_ONCE_AFTER: | |
2262 | { | |
2263 | if (!assign_string(&fire_once_after_str, item_opt->arg, | |
2264 | "--fire-once-after")) { | |
2265 | goto error; | |
2266 | } | |
2267 | ||
2268 | break; | |
2269 | } | |
2270 | case OPT_FIRE_EVERY: | |
2271 | { | |
2272 | if (!assign_string(&fire_every_str, item_opt->arg, | |
2273 | "--fire-every")) { | |
2274 | goto error; | |
2275 | } | |
2276 | ||
2277 | break; | |
2278 | } | |
2279 | case OPT_USER_ID: | |
2280 | { | |
2281 | if (!assign_string(&user_id, item_opt->arg, | |
2282 | "--user-id")) { | |
2283 | goto error; | |
2284 | } | |
2285 | ||
2286 | break; | |
2287 | } | |
2288 | default: | |
2289 | abort(); | |
2290 | } | |
2291 | } | |
2292 | ||
2293 | if (!condition) { | |
2294 | ERR("Missing --condition."); | |
2295 | goto error; | |
2296 | } | |
2297 | ||
2298 | if (lttng_dynamic_pointer_array_get_count(&actions) == 0) { | |
2299 | ERR("Need at least one --action."); | |
2300 | goto error; | |
2301 | } | |
2302 | ||
2303 | if (fire_every_str && fire_once_after_str) { | |
2304 | ERR("Can't specify both --fire-once-after and --fire-every."); | |
2305 | goto error; | |
2306 | } | |
2307 | ||
2308 | action_group = lttng_action_group_create(); | |
2309 | if (!action_group) { | |
2310 | goto error; | |
2311 | } | |
2312 | ||
2313 | for (i = 0; i < lttng_dynamic_pointer_array_get_count(&actions); i++) { | |
2314 | enum lttng_action_status status; | |
2315 | ||
2316 | action = lttng_dynamic_pointer_array_steal_pointer(&actions, i); | |
c3e68e71 JR |
2317 | if (action_is_tracer_executed(action)) { |
2318 | if (fire_every_str || fire_once_after_str) { | |
2319 | /* | |
2320 | * Firing policy with tracer-executed actions | |
2321 | * (`incr-value`) is not supported at the | |
2322 | * moment. It's not clear how the tracers will | |
2323 | * handle the different policies efficiently. | |
2324 | */ | |
2325 | ERR("Can't use --fire-once-after or --fire-every with tracer executed action (incr-value)"); | |
2326 | goto error; | |
2327 | } | |
2328 | } | |
4624dad0 SM |
2329 | |
2330 | status = lttng_action_group_add_action(action_group, action); | |
2331 | if (status != LTTNG_ACTION_STATUS_OK) { | |
2332 | goto error; | |
2333 | } | |
2334 | ||
2335 | /* | |
2336 | * The `lttng_action_group_add_action()` takes a reference to | |
2337 | * the action. We can destroy ours. | |
2338 | */ | |
2339 | lttng_action_destroy(action); | |
2340 | action = NULL; | |
2341 | } | |
2342 | ||
2343 | trigger = lttng_trigger_create(condition, action_group); | |
2344 | if (!trigger) { | |
2345 | goto error; | |
2346 | } | |
2347 | ||
2348 | if (id) { | |
2349 | enum lttng_trigger_status trigger_status = | |
2350 | lttng_trigger_set_name(trigger, id); | |
2351 | ||
2352 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { | |
2353 | ERR("Failed to set trigger id."); | |
2354 | goto error; | |
2355 | } | |
2356 | } | |
2357 | ||
2358 | if (fire_once_after_str) { | |
2359 | unsigned long long threshold; | |
2360 | enum lttng_trigger_status trigger_status; | |
2361 | ||
2362 | if (utils_parse_unsigned_long_long(fire_once_after_str, &threshold) != 0) { | |
2363 | ERR("Failed to parse `%s` as an integer.", fire_once_after_str); | |
2364 | goto error; | |
2365 | } | |
2366 | ||
2367 | trigger_status = lttng_trigger_set_firing_policy(trigger, | |
2368 | LTTNG_TRIGGER_FIRING_POLICY_ONCE_AFTER_N, | |
2369 | threshold); | |
2370 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { | |
2371 | ERR("Failed to set trigger's policy to `fire once after N`."); | |
2372 | goto error; | |
2373 | } | |
2374 | } | |
2375 | ||
2376 | if (fire_every_str) { | |
2377 | unsigned long long threshold; | |
2378 | enum lttng_trigger_status trigger_status; | |
2379 | ||
2380 | if (utils_parse_unsigned_long_long(fire_every_str, &threshold) != 0) { | |
2381 | ERR("Failed to parse `%s` as an integer.", fire_every_str); | |
2382 | goto error; | |
2383 | } | |
2384 | ||
2385 | trigger_status = lttng_trigger_set_firing_policy(trigger, | |
2386 | LTTNG_TRIGGER_FIRING_POLICY_EVERY_N, threshold); | |
2387 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { | |
2388 | ERR("Failed to set trigger's policy to `fire every N`."); | |
2389 | goto error; | |
2390 | } | |
2391 | } | |
2392 | ||
2393 | if (user_id) { | |
2394 | enum lttng_trigger_status trigger_status; | |
2395 | char *end; | |
2396 | long long uid; | |
2397 | ||
2398 | errno = 0; | |
2399 | uid = strtol(user_id, &end, 10); | |
2400 | if (end == user_id || *end != '\0' || errno != 0) { | |
2401 | ERR("Failed to parse `%s` as a user id.", user_id); | |
2402 | } | |
2403 | ||
2404 | trigger_status = lttng_trigger_set_owner_uid(trigger, uid); | |
2405 | if (trigger_status != LTTNG_TRIGGER_STATUS_OK) { | |
2406 | ERR("Failed to set trigger's user identity."); | |
2407 | goto error; | |
2408 | } | |
2409 | } | |
2410 | ||
2411 | ret = lttng_register_trigger(trigger); | |
2412 | if (ret) { | |
2413 | ERR("Failed to register trigger: %s.", lttng_strerror(ret)); | |
2414 | goto error; | |
2415 | } | |
2416 | ||
2417 | MSG("Trigger registered successfully."); | |
2418 | ||
2419 | goto end; | |
2420 | ||
2421 | error: | |
2422 | ret = 1; | |
2423 | ||
2424 | end: | |
2425 | argpar_state_destroy(argpar_state); | |
2426 | argpar_item_destroy(argpar_item); | |
2427 | lttng_dynamic_pointer_array_reset(&actions); | |
2428 | lttng_condition_destroy(condition); | |
2429 | lttng_action_destroy(action_group); | |
2430 | lttng_action_destroy(action); | |
2431 | lttng_trigger_destroy(trigger); | |
2432 | free(error); | |
2433 | free(id); | |
2434 | free(fire_once_after_str); | |
2435 | free(fire_every_str); | |
2436 | free(user_id); | |
2437 | return ret; | |
2438 | } |