Commit | Line | Data |
---|---|---|
e953ef25 DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
e953ef25 DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
e953ef25 DG |
16 | */ |
17 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
e953ef25 DG |
19 | #include <popt.h> |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <sys/stat.h> | |
24 | #include <sys/types.h> | |
25 | #include <unistd.h> | |
e4d484a5 JRJ |
26 | #include <assert.h> |
27 | ||
28 | #include <common/mi-lttng.h> | |
e953ef25 | 29 | |
c399183f | 30 | #include "../command.h" |
e953ef25 DG |
31 | |
32 | static char *opt_event_list; | |
9730260e | 33 | static int opt_kernel; |
e953ef25 | 34 | static char *opt_channel_name; |
5440dc42 | 35 | static char *opt_session_name; |
e953ef25 DG |
36 | static int opt_userspace; |
37 | static int opt_disable_all; | |
b9dfb167 | 38 | static int opt_jul; |
5cdb6027 | 39 | static int opt_log4j; |
0e115563 | 40 | static int opt_python; |
6e911cad | 41 | static int opt_event_type; |
e953ef25 DG |
42 | |
43 | enum { | |
44 | OPT_HELP = 1, | |
9550ee81 JR |
45 | OPT_TYPE_SYSCALL, |
46 | OPT_TYPE_TRACEPOINT, | |
47 | OPT_TYPE_PROBE, | |
48 | OPT_TYPE_FUNCTION, | |
49 | OPT_TYPE_ALL, | |
679b4943 | 50 | OPT_LIST_OPTIONS, |
e953ef25 DG |
51 | }; |
52 | ||
cd80958d | 53 | static struct lttng_handle *handle; |
e4d484a5 | 54 | static struct mi_writer *writer; |
cd80958d | 55 | |
e953ef25 DG |
56 | static struct poptOption long_options[] = { |
57 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
58 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
5440dc42 | 59 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
e953ef25 DG |
60 | {"all-events", 'a', POPT_ARG_VAL, &opt_disable_all, 1, 0, 0}, |
61 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, | |
b9dfb167 | 62 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 63 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
0e115563 | 64 | {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 0, 0}, |
e953ef25 | 65 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
9550ee81 JR |
66 | {"userspace", 'u', POPT_ARG_VAL, &opt_userspace, 1, 0, 0}, |
67 | {"syscall", 0, POPT_ARG_NONE, 0, OPT_TYPE_SYSCALL, 0, 0}, | |
68 | {"probe", 0, POPT_ARG_NONE, 0, OPT_TYPE_PROBE, 0, 0}, | |
69 | {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TYPE_TRACEPOINT, 0, 0}, | |
70 | {"function", 0, POPT_ARG_NONE, 0, OPT_TYPE_FUNCTION, 0, 0}, | |
71 | {"all", 0, POPT_ARG_NONE, 0, OPT_TYPE_ALL, 0, 0}, | |
679b4943 | 72 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
e953ef25 DG |
73 | {0, 0, 0, 0, 0, 0, 0} |
74 | }; | |
75 | ||
85076754 MD |
76 | static |
77 | const char *print_channel_name(const char *name) | |
78 | { | |
79 | return name ? : DEFAULT_CHANNEL_NAME; | |
80 | } | |
81 | ||
82 | static | |
83 | const char *print_raw_channel_name(const char *name) | |
84 | { | |
85 | return name ? : "<default>"; | |
86 | } | |
87 | ||
9550ee81 JR |
88 | static |
89 | const char *print_event_type(const enum lttng_event_type ev_type) | |
90 | { | |
91 | switch (ev_type) { | |
92 | case LTTNG_EVENT_ALL: | |
93 | return "any"; | |
94 | case LTTNG_EVENT_TRACEPOINT: | |
95 | return "tracepoint"; | |
96 | case LTTNG_EVENT_PROBE: | |
97 | return "probe"; | |
98 | case LTTNG_EVENT_FUNCTION: | |
99 | return "function"; | |
100 | case LTTNG_EVENT_FUNCTION_ENTRY: | |
101 | return "function entry"; | |
102 | case LTTNG_EVENT_SYSCALL: | |
103 | return "syscall"; | |
104 | default: | |
105 | return ""; | |
106 | } | |
107 | } | |
108 | ||
e4d484a5 JRJ |
109 | /* Mi print a partial event. |
110 | * enabled is 0 or 1 | |
111 | * success is 0 or 1 | |
112 | */ | |
113 | static int mi_print_event(char *event_name, int enabled, int success) | |
114 | { | |
115 | int ret; | |
116 | ||
117 | assert(writer); | |
118 | assert(event_name); | |
119 | ||
120 | /* Open event element */ | |
121 | ret = mi_lttng_writer_open_element(writer, config_element_event); | |
122 | if (ret) { | |
123 | goto end; | |
124 | } | |
125 | ||
126 | /* Print the name of event */ | |
127 | ret = mi_lttng_writer_write_element_string(writer, | |
128 | config_element_name, event_name); | |
129 | if (ret) { | |
130 | goto end; | |
131 | } | |
132 | ||
133 | /* Print enabled ? */ | |
134 | ret = mi_lttng_writer_write_element_bool(writer, | |
135 | config_element_enabled, enabled); | |
136 | if (ret) { | |
137 | goto end; | |
138 | } | |
139 | ||
140 | /* Success ? */ | |
141 | ret = mi_lttng_writer_write_element_bool(writer, | |
142 | mi_lttng_element_command_success, success); | |
143 | if (ret) { | |
144 | goto end; | |
145 | } | |
146 | ||
147 | /* Close event element */ | |
148 | ret = mi_lttng_writer_close_element(writer); | |
149 | end: | |
150 | return ret; | |
151 | } | |
152 | ||
e953ef25 DG |
153 | /* |
154 | * disable_events | |
155 | * | |
156 | * Disabling event using the lttng API. | |
157 | */ | |
cd80958d | 158 | static int disable_events(char *session_name) |
e953ef25 | 159 | { |
e4d484a5 JRJ |
160 | int ret = CMD_SUCCESS, warn = 0, command_ret = CMD_SUCCESS; |
161 | int enabled = 1, success = 1; | |
b73d0b29 | 162 | char *event_name, *channel_name = NULL; |
7d29a247 | 163 | struct lttng_domain dom; |
6e911cad | 164 | struct lttng_event event; |
e953ef25 | 165 | |
441c16a7 MD |
166 | memset(&dom, 0, sizeof(dom)); |
167 | ||
d78d6610 | 168 | /* Create lttng domain */ |
7d29a247 DG |
169 | if (opt_kernel) { |
170 | dom.type = LTTNG_DOMAIN_KERNEL; | |
d78d6610 | 171 | } else if (opt_userspace) { |
9730260e | 172 | dom.type = LTTNG_DOMAIN_UST; |
b9dfb167 DG |
173 | } else if (opt_jul) { |
174 | dom.type = LTTNG_DOMAIN_JUL; | |
5cdb6027 DG |
175 | } else if (opt_log4j) { |
176 | dom.type = LTTNG_DOMAIN_LOG4J; | |
0e115563 DG |
177 | } else if (opt_python) { |
178 | dom.type = LTTNG_DOMAIN_PYTHON; | |
9730260e | 179 | } else { |
3ecec76a PP |
180 | /* Checked by the caller. */ |
181 | assert(0); | |
7d29a247 DG |
182 | } |
183 | ||
85076754 | 184 | channel_name = opt_channel_name; |
ae856491 | 185 | |
cd80958d DG |
186 | handle = lttng_create_handle(session_name, &dom); |
187 | if (handle == NULL) { | |
188 | ret = -1; | |
189 | goto error; | |
190 | } | |
191 | ||
e4d484a5 JRJ |
192 | /* Mi print the channel and open the events element */ |
193 | if (lttng_opt_mi) { | |
194 | ret = mi_lttng_writer_open_element(writer, config_element_channel); | |
195 | if (ret) { | |
196 | ret = CMD_ERROR; | |
197 | goto end; | |
e953ef25 DG |
198 | } |
199 | ||
e4d484a5 JRJ |
200 | ret = mi_lttng_writer_write_element_string(writer, |
201 | config_element_name, print_channel_name(channel_name)); | |
202 | if (ret) { | |
203 | ret = CMD_ERROR; | |
204 | goto end; | |
205 | } | |
206 | ||
207 | /* Open events element */ | |
208 | ret = mi_lttng_writer_open_element(writer, config_element_events); | |
209 | if (ret) { | |
210 | ret = CMD_ERROR; | |
211 | goto end; | |
212 | } | |
e953ef25 DG |
213 | } |
214 | ||
6e911cad | 215 | memset(&event, 0, sizeof(event)); |
9b7431cf JG |
216 | /* Set default loglevel to any/unknown */ |
217 | event.loglevel = -1; | |
218 | ||
9550ee81 JR |
219 | /* opt_event_type contain the event type to disable at this point */ |
220 | event.type = opt_event_type; | |
6e911cad | 221 | |
e4d484a5 | 222 | if (opt_disable_all) { |
6e911cad | 223 | command_ret = lttng_disable_event_ext(handle, &event, channel_name, NULL); |
e4d484a5 JRJ |
224 | if (command_ret < 0) { |
225 | ERR("%s", lttng_strerror(command_ret)); | |
226 | enabled = 1; | |
227 | success = 0; | |
228 | ||
9730260e | 229 | } else { |
e4d484a5 JRJ |
230 | enabled = 0; |
231 | success = 1; | |
9550ee81 | 232 | MSG("All %s events of type %s are disabled in channel %s", |
6e911cad | 233 | get_domain_str(dom.type), |
9550ee81 | 234 | print_event_type(opt_event_type), |
6e911cad | 235 | print_channel_name(channel_name)); |
9730260e DG |
236 | } |
237 | ||
e4d484a5 JRJ |
238 | if (lttng_opt_mi) { |
239 | ret = mi_print_event("*", enabled, success); | |
240 | if (ret) { | |
241 | ret = CMD_ERROR; | |
242 | goto error; | |
243 | } | |
244 | } | |
245 | } else { | |
246 | /* Strip event list */ | |
247 | event_name = strtok(opt_event_list, ","); | |
248 | while (event_name != NULL) { | |
249 | DBG("Disabling event %s", event_name); | |
e953ef25 | 250 | |
6e911cad MD |
251 | strncpy(event.name, event_name, sizeof(event.name)); |
252 | event.name[sizeof(event.name) - 1] = '\0'; | |
253 | command_ret = lttng_disable_event_ext(handle, &event, channel_name, NULL); | |
e4d484a5 | 254 | if (command_ret < 0) { |
9550ee81 | 255 | ERR("%s of type %s : %s (channel %s, session %s)", |
6e911cad | 256 | event_name, |
9550ee81 | 257 | print_event_type(opt_event_type), |
e4d484a5 JRJ |
258 | lttng_strerror(command_ret), |
259 | command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME | |
260 | ? print_raw_channel_name(channel_name) | |
261 | : print_channel_name(channel_name), | |
262 | session_name); | |
263 | warn = 1; | |
264 | success = 0; | |
265 | /* | |
6e911cad MD |
266 | * If an error occurred we assume that the event is still |
267 | * enabled. | |
e4d484a5 JRJ |
268 | */ |
269 | enabled = 1; | |
270 | } else { | |
9550ee81 | 271 | MSG("%s %s of type %s disabled in channel %s for session %s", |
6e911cad | 272 | get_domain_str(dom.type), |
6e911cad | 273 | event_name, |
9550ee81 | 274 | print_event_type(opt_event_type), |
e4d484a5 JRJ |
275 | print_channel_name(channel_name), |
276 | session_name); | |
277 | success = 1; | |
278 | enabled = 0; | |
279 | } | |
280 | ||
281 | if (lttng_opt_mi) { | |
282 | ret = mi_print_event(event_name, enabled, success); | |
283 | if (ret) { | |
284 | ret = CMD_ERROR; | |
285 | goto error; | |
286 | } | |
287 | } | |
288 | ||
289 | /* Next event */ | |
290 | event_name = strtok(NULL, ","); | |
291 | } | |
292 | } | |
ae856491 | 293 | |
9730260e | 294 | end: |
e4d484a5 JRJ |
295 | if (lttng_opt_mi) { |
296 | /* Close events element and channel element */ | |
297 | ret = mi_lttng_close_multi_element(writer, 2); | |
298 | if (ret) { | |
299 | ret = CMD_ERROR; | |
300 | } | |
301 | } | |
e953ef25 | 302 | error: |
e4d484a5 JRJ |
303 | /* if there is already an error preserve it */ |
304 | if (warn && !ret) { | |
ae856491 DG |
305 | ret = CMD_WARNING; |
306 | } | |
cd80958d | 307 | |
e4d484a5 JRJ |
308 | /* Overwrite ret if an error occurred */ |
309 | ret = command_ret ? command_ret : ret; | |
310 | ||
311 | lttng_destroy_handle(handle); | |
e953ef25 DG |
312 | return ret; |
313 | } | |
314 | ||
315 | /* | |
316 | * cmd_disable_events | |
317 | * | |
318 | * Disable event to trace session | |
319 | */ | |
320 | int cmd_disable_events(int argc, const char **argv) | |
321 | { | |
e4d484a5 | 322 | int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1; |
e953ef25 | 323 | static poptContext pc; |
cd80958d | 324 | char *session_name = NULL; |
6e911cad | 325 | int event_type = -1; |
e953ef25 DG |
326 | |
327 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
328 | poptReadDefaultConfig(pc, 0); | |
329 | ||
6e911cad MD |
330 | /* Default event type */ |
331 | opt_event_type = LTTNG_EVENT_ALL; | |
332 | ||
e953ef25 DG |
333 | while ((opt = poptGetNextOpt(pc)) != -1) { |
334 | switch (opt) { | |
335 | case OPT_HELP: | |
4ba92f18 | 336 | SHOW_HELP(); |
e953ef25 | 337 | goto end; |
9550ee81 | 338 | case OPT_TYPE_SYSCALL: |
6e911cad MD |
339 | opt_event_type = LTTNG_EVENT_SYSCALL; |
340 | break; | |
9550ee81 JR |
341 | case OPT_TYPE_TRACEPOINT: |
342 | opt_event_type = LTTNG_EVENT_TRACEPOINT; | |
343 | break; | |
344 | case OPT_TYPE_PROBE: | |
345 | opt_event_type = LTTNG_EVENT_PROBE; | |
346 | break; | |
347 | case OPT_TYPE_FUNCTION: | |
348 | opt_event_type = LTTNG_EVENT_FUNCTION; | |
349 | break; | |
350 | case OPT_TYPE_ALL: | |
351 | opt_event_type = LTTNG_EVENT_ALL; | |
352 | break; | |
679b4943 SM |
353 | case OPT_LIST_OPTIONS: |
354 | list_cmd_options(stdout, long_options); | |
679b4943 | 355 | goto end; |
e953ef25 | 356 | default: |
e953ef25 DG |
357 | ret = CMD_UNDEFINED; |
358 | goto end; | |
359 | } | |
6e911cad MD |
360 | |
361 | /* Validate event type. Multiple event type are not supported. */ | |
362 | if (event_type == -1) { | |
363 | event_type = opt_event_type; | |
364 | } else { | |
365 | if (event_type != opt_event_type) { | |
366 | ERR("Multiple event type not supported."); | |
367 | ret = CMD_ERROR; | |
368 | goto end; | |
369 | } | |
370 | } | |
e953ef25 DG |
371 | } |
372 | ||
3ecec76a PP |
373 | ret = print_missing_or_multiple_domains( |
374 | opt_kernel + opt_userspace + opt_jul + opt_log4j + opt_python); | |
375 | if (ret) { | |
376 | ret = CMD_ERROR; | |
377 | goto end; | |
378 | } | |
379 | ||
9550ee81 JR |
380 | /* Ust and agent only support ALL event type */ |
381 | if ((opt_userspace || opt_jul || opt_log4j || opt_python) | |
382 | && opt_event_type != LTTNG_EVENT_ALL) { | |
7767963f | 383 | ERR("Disabling userspace and agent (-j | -l | -p) event(s) based on instrumentation type is not supported.\n"); |
9550ee81 JR |
384 | ret = CMD_ERROR; |
385 | goto end; | |
386 | } | |
387 | ||
e953ef25 DG |
388 | opt_event_list = (char*) poptGetArg(pc); |
389 | if (opt_event_list == NULL && opt_disable_all == 0) { | |
390 | ERR("Missing event name(s).\n"); | |
ca1c3607 | 391 | ret = CMD_ERROR; |
e953ef25 DG |
392 | goto end; |
393 | } | |
394 | ||
cd80958d DG |
395 | if (!opt_session_name) { |
396 | session_name = get_session_name(); | |
397 | if (session_name == NULL) { | |
ca1c3607 | 398 | ret = CMD_ERROR; |
cd80958d DG |
399 | goto end; |
400 | } | |
401 | } else { | |
402 | session_name = opt_session_name; | |
403 | } | |
404 | ||
e4d484a5 JRJ |
405 | /* Mi check */ |
406 | if (lttng_opt_mi) { | |
407 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
408 | if (!writer) { | |
409 | ret = -LTTNG_ERR_NOMEM; | |
410 | goto end; | |
411 | } | |
412 | ||
413 | /* Open command element */ | |
414 | ret = mi_lttng_writer_command_open(writer, | |
415 | mi_lttng_element_command_disable_event); | |
416 | if (ret) { | |
417 | ret = CMD_ERROR; | |
418 | goto end; | |
419 | } | |
420 | ||
421 | /* Open output element */ | |
422 | ret = mi_lttng_writer_open_element(writer, | |
423 | mi_lttng_element_command_output); | |
424 | if (ret) { | |
425 | ret = CMD_ERROR; | |
426 | goto end; | |
427 | } | |
428 | } | |
429 | ||
430 | command_ret = disable_events(session_name); | |
431 | if (command_ret) { | |
432 | success = 0; | |
433 | } | |
434 | ||
435 | /* Mi closing */ | |
436 | if (lttng_opt_mi) { | |
437 | /* Close output element */ | |
438 | ret = mi_lttng_writer_close_element(writer); | |
439 | if (ret) { | |
440 | ret = CMD_ERROR; | |
441 | goto end; | |
442 | } | |
443 | ||
444 | ret = mi_lttng_writer_write_element_bool(writer, | |
445 | mi_lttng_element_command_success, success); | |
446 | if (ret) { | |
447 | ret = CMD_ERROR; | |
448 | goto end; | |
449 | } | |
450 | ||
451 | /* Command element close */ | |
452 | ret = mi_lttng_writer_command_close(writer); | |
453 | if (ret) { | |
454 | ret = CMD_ERROR; | |
455 | goto end; | |
456 | } | |
457 | } | |
e953ef25 DG |
458 | |
459 | end: | |
5853fd43 DG |
460 | if (!opt_session_name && session_name) { |
461 | free(session_name); | |
462 | } | |
e4d484a5 JRJ |
463 | |
464 | /* Mi clean-up */ | |
465 | if (writer && mi_lttng_writer_destroy(writer)) { | |
466 | /* Preserve original error code */ | |
467 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; | |
468 | } | |
469 | ||
470 | /* Overwrite ret if an error occured in disable_events */ | |
471 | ret = command_ret ? command_ret : ret; | |
472 | ||
ca1c3607 | 473 | poptFreeContext(pc); |
e953ef25 DG |
474 | return ret; |
475 | } |