Commit | Line | Data |
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9245bd0e DG |
1 | /* |
2 | * Copyright (C) 2014 - David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU Lesser General Public License, version 2.1 only, | |
6 | * as published by the Free Software Foundation. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
11 | * for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public License | |
14 | * along with this library; if not, write to the Free Software Foundation, | |
15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
6c1c0768 | 18 | #define _LGPL_SOURCE |
9245bd0e DG |
19 | #include <assert.h> |
20 | #include <string.h> | |
96607445 | 21 | #include <limits.h> |
9245bd0e DG |
22 | |
23 | #include <lttng/lttng-error.h> | |
24 | #include <lttng/load.h> | |
25 | #include <lttng/load-internal.h> | |
26 | #include <common/sessiond-comm/sessiond-comm.h> | |
f40ef1d5 | 27 | #include <common/config/session-config.h> |
96607445 JR |
28 | #include <common/uri.h> |
29 | #include <common/macros.h> | |
9245bd0e DG |
30 | |
31 | #include "lttng-ctl-helper.h" | |
32 | ||
33 | struct lttng_load_session_attr *lttng_load_session_attr_create(void) | |
34 | { | |
35 | return zmalloc(sizeof(struct lttng_load_session_attr)); | |
36 | } | |
37 | ||
38 | void lttng_load_session_attr_destroy(struct lttng_load_session_attr *attr) | |
39 | { | |
40 | if (attr) { | |
96607445 JR |
41 | free(attr->raw_override_url); |
42 | free(attr->raw_override_path_url); | |
43 | free(attr->raw_override_ctrl_url); | |
44 | free(attr->raw_override_data_url); | |
45 | free(attr->override_attr.path_url); | |
46 | free(attr->override_attr.ctrl_url); | |
47 | free(attr->override_attr.data_url); | |
9245bd0e DG |
48 | free(attr); |
49 | } | |
50 | } | |
51 | ||
52 | const char *lttng_load_session_attr_get_session_name( | |
53 | struct lttng_load_session_attr *attr) | |
54 | { | |
55 | const char *ret = NULL; | |
56 | ||
57 | if (attr && attr->session_name[0]) { | |
58 | ret = attr->session_name; | |
59 | } | |
60 | ||
61 | return ret; | |
62 | } | |
63 | ||
64 | const char *lttng_load_session_attr_get_input_url( | |
65 | struct lttng_load_session_attr *attr) | |
66 | { | |
67 | const char *ret = NULL; | |
68 | ||
69 | if (attr && attr->input_url[0]) { | |
70 | ret = attr->input_url; | |
71 | } | |
72 | ||
73 | return ret; | |
74 | } | |
75 | ||
76 | int lttng_load_session_attr_get_overwrite( | |
77 | struct lttng_load_session_attr *attr) | |
78 | { | |
79 | return attr ? attr->overwrite : -LTTNG_ERR_INVALID; | |
80 | } | |
81 | ||
96607445 JR |
82 | const char *lttng_load_session_attr_get_override_path_url( |
83 | struct lttng_load_session_attr *attr) | |
84 | { | |
85 | const char *ret = NULL; | |
86 | ||
87 | if (attr && attr->override_attr.path_url) { | |
88 | ret = attr->raw_override_path_url; | |
89 | } | |
90 | ||
91 | return ret; | |
92 | } | |
93 | ||
94 | const char *lttng_load_session_attr_get_override_ctrl_url( | |
95 | struct lttng_load_session_attr *attr) | |
96 | { | |
97 | const char *ret = NULL; | |
98 | ||
99 | if (attr && attr->override_attr.ctrl_url) { | |
100 | ret = attr->raw_override_ctrl_url; | |
101 | } | |
102 | ||
103 | return ret; | |
104 | } | |
105 | ||
106 | const char *lttng_load_session_attr_get_override_data_url( | |
107 | struct lttng_load_session_attr *attr) | |
108 | { | |
109 | const char *ret = NULL; | |
110 | ||
111 | if (attr && attr->override_attr.data_url) { | |
112 | ret = attr->raw_override_data_url; | |
113 | } | |
114 | ||
115 | return ret; | |
116 | } | |
117 | ||
118 | const char *lttng_load_session_attr_get_override_url( | |
119 | struct lttng_load_session_attr *attr) | |
120 | { | |
121 | const char *ret = NULL; | |
122 | ||
123 | if (attr && (attr->override_attr.path_url || | |
124 | (attr->override_attr.ctrl_url && | |
125 | attr->override_attr.data_url))) { | |
126 | ret = attr->raw_override_url; | |
127 | } | |
128 | ||
129 | return ret; | |
130 | } | |
131 | ||
9245bd0e DG |
132 | int lttng_load_session_attr_set_session_name( |
133 | struct lttng_load_session_attr *attr, const char *session_name) | |
134 | { | |
135 | int ret = 0; | |
136 | ||
137 | if (!attr) { | |
138 | ret = -LTTNG_ERR_INVALID; | |
139 | goto error; | |
140 | } | |
141 | ||
142 | if (session_name) { | |
143 | size_t len; | |
144 | ||
145 | len = strlen(session_name); | |
36d2e35d | 146 | if (len >= LTTNG_NAME_MAX) { |
9245bd0e DG |
147 | ret = -LTTNG_ERR_INVALID; |
148 | goto error; | |
149 | } | |
150 | ||
151 | strncpy(attr->session_name, session_name, len); | |
152 | } else { | |
153 | attr->session_name[0] = '\0'; | |
154 | } | |
155 | error: | |
156 | return ret; | |
157 | } | |
158 | ||
159 | int lttng_load_session_attr_set_input_url( | |
160 | struct lttng_load_session_attr *attr, const char *url) | |
161 | { | |
162 | int ret = 0; | |
a2113b79 JR |
163 | size_t len; |
164 | ssize_t size; | |
9245bd0e DG |
165 | struct lttng_uri *uris = NULL; |
166 | ||
167 | if (!attr) { | |
168 | ret = -LTTNG_ERR_INVALID; | |
169 | goto error; | |
170 | } | |
171 | ||
172 | if (!url) { | |
173 | attr->input_url[0] = '\0'; | |
174 | ret = 0; | |
175 | goto end; | |
176 | } | |
177 | ||
178 | len = strlen(url); | |
179 | if (len >= PATH_MAX) { | |
180 | ret = -LTTNG_ERR_INVALID; | |
181 | goto error; | |
182 | } | |
183 | ||
184 | size = uri_parse_str_urls(url, NULL, &uris); | |
185 | if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) { | |
186 | ret = -LTTNG_ERR_INVALID; | |
187 | goto error; | |
188 | } | |
189 | ||
190 | /* Copy string plus the NULL terminated byte. */ | |
191 | lttng_ctl_copy_string(attr->input_url, uris[0].dst.path, | |
192 | sizeof(attr->input_url)); | |
193 | ||
194 | end: | |
195 | error: | |
196 | free(uris); | |
197 | return ret; | |
198 | } | |
199 | ||
200 | int lttng_load_session_attr_set_overwrite( | |
201 | struct lttng_load_session_attr *attr, int overwrite) | |
202 | { | |
203 | int ret = 0; | |
204 | ||
205 | if (!attr) { | |
206 | ret = -LTTNG_ERR_INVALID; | |
207 | goto end; | |
208 | } | |
209 | ||
210 | attr->overwrite = !!overwrite; | |
211 | end: | |
212 | return ret; | |
213 | } | |
214 | ||
96607445 JR |
215 | int lttng_load_session_attr_set_override_path_url( |
216 | struct lttng_load_session_attr *attr, const char *url) | |
217 | { | |
218 | int ret = 0; | |
219 | ssize_t ret_size; | |
220 | struct lttng_uri *uri = NULL; | |
221 | char *url_str = NULL; | |
222 | char *raw_str = NULL; | |
223 | int tmp = 0; | |
224 | ||
225 | if (!attr) { | |
226 | ret = -LTTNG_ERR_INVALID; | |
227 | goto end; | |
228 | } | |
229 | ||
230 | if (attr->override_attr.ctrl_url || attr->override_attr.data_url) { | |
231 | /* | |
232 | * FIXME: return a more meaningful error. | |
233 | * Setting a path override after a ctrl or data override make no | |
234 | * sense and show that the user do not know what he is doing. | |
235 | * */ | |
236 | ret = -LTTNG_ERR_INVALID; | |
237 | goto end; | |
238 | } | |
239 | ||
240 | /* | |
241 | * FIXME: uri_parse should be able to take as parameter the protocol | |
242 | * type to check validity with or the exclusion. For now only check on | |
243 | * the parsing validity it will fail later on. | |
244 | * */ | |
245 | ret_size = uri_parse(url, &uri); | |
246 | if (ret_size != 1) { | |
247 | ret = -LTTNG_ERR_INVALID; | |
248 | goto end; | |
249 | } | |
250 | ||
251 | /* Populate the internal override representation */ | |
252 | url_str = zmalloc(PATH_MAX); | |
253 | if (!url_str) { | |
254 | /* FIXME: return valid error */ | |
255 | ret = LTTNG_ERR_INVALID; | |
256 | goto end; | |
257 | } | |
258 | ||
259 | tmp = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
260 | if (tmp < 0) { | |
261 | ret = -LTTNG_ERR_INVALID; | |
262 | goto end; | |
263 | } | |
264 | ||
265 | raw_str = strndup(url, PATH_MAX); | |
266 | if (!raw_str) { | |
267 | /* FIXME: return valid error */ | |
268 | ret = LTTNG_ERR_INVALID; | |
269 | goto end; | |
270 | } | |
271 | ||
272 | /* Squash old value if any */ | |
273 | free(attr->override_attr.path_url); | |
274 | free(attr->raw_override_path_url); | |
275 | ||
276 | /* Populate the object */ | |
277 | attr->override_attr.path_url = url_str; | |
278 | attr->raw_override_path_url = raw_str; | |
279 | ||
280 | url_str = NULL; | |
281 | raw_str = NULL; | |
282 | end: | |
283 | free(raw_str); | |
284 | free(url_str); | |
285 | free(uri); | |
286 | return ret; | |
287 | } | |
288 | ||
289 | int lttng_load_session_attr_set_override_ctrl_url( | |
290 | struct lttng_load_session_attr *attr, const char *url) | |
291 | { | |
292 | int ret = 0; | |
293 | ssize_t ret_size; | |
294 | struct lttng_uri *uri = NULL; | |
295 | char *url_str = NULL; | |
296 | char *raw_str = NULL; | |
297 | int tmp = 0; | |
298 | ||
299 | if (!attr) { | |
300 | ret = -LTTNG_ERR_INVALID; | |
301 | goto end; | |
302 | } | |
303 | ||
304 | if (attr->override_attr.path_url) { | |
305 | /* | |
306 | * FIXME: return a more meaningful error. | |
307 | * Setting a ctrl override after a path override make no | |
308 | * sense and show that the user do not know what he is doing. | |
309 | * */ | |
310 | ret = -LTTNG_ERR_INVALID; | |
311 | goto end; | |
312 | } | |
313 | ||
314 | /* | |
315 | * FIXME: uri_parse should be able to take as parameter the protocol | |
316 | * type to check validity with or the exclusion. For now only check on | |
317 | * the parsing validity it will fail later on. | |
318 | * */ | |
319 | ret_size = uri_parse(url, &uri); | |
320 | if (ret_size < 0) { | |
321 | ret = -LTTNG_ERR_INVALID; | |
322 | goto end; | |
323 | } | |
324 | ||
325 | if (uri[0].port == 0) { | |
326 | uri[0].port = DEFAULT_NETWORK_CONTROL_PORT; | |
327 | } | |
328 | ||
329 | url_str = zmalloc(PATH_MAX); | |
330 | if (!url_str) { | |
331 | /* FIXME: return valid error */ | |
332 | ret = LTTNG_ERR_INVALID; | |
333 | goto end; | |
334 | } | |
335 | ||
336 | tmp = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
337 | if (tmp < 0) { | |
338 | ret = -LTTNG_ERR_INVALID; | |
339 | goto end; | |
340 | } | |
341 | ||
342 | raw_str = strndup(url, PATH_MAX); | |
343 | if (!raw_str) { | |
344 | /* FIXME: return valid error */ | |
345 | ret = LTTNG_ERR_INVALID; | |
346 | goto end; | |
347 | } | |
348 | ||
349 | /* Squash old value if any */ | |
350 | free(attr->override_attr.ctrl_url); | |
351 | free(attr->raw_override_ctrl_url); | |
352 | ||
353 | /* Populate the object */ | |
354 | attr->override_attr.ctrl_url = url_str; | |
355 | attr->raw_override_ctrl_url = raw_str; | |
356 | ||
357 | url_str = NULL; | |
358 | raw_str = NULL; | |
359 | ||
360 | end: | |
361 | free(raw_str); | |
362 | free(url_str); | |
363 | free(uri); | |
364 | return ret; | |
365 | } | |
366 | ||
367 | int lttng_load_session_attr_set_override_data_url( | |
368 | struct lttng_load_session_attr *attr, const char *url) | |
369 | { | |
370 | int ret = 0; | |
371 | ssize_t ret_size; | |
372 | struct lttng_uri *uri = NULL; | |
373 | char *url_str = NULL; | |
374 | char *raw_str = NULL; | |
375 | int tmp = 0; | |
376 | ||
377 | if (!attr) { | |
378 | ret = -LTTNG_ERR_INVALID; | |
379 | goto end; | |
380 | } | |
381 | ||
382 | if (attr->override_attr.path_url) { | |
383 | /* | |
384 | * FIXME: return a more meaningful error. | |
385 | * Setting a data override after a path override make no | |
386 | * sense and show that the user do not know what he is doing. | |
387 | * */ | |
388 | ret = -LTTNG_ERR_INVALID; | |
389 | goto end; | |
390 | } | |
391 | ||
392 | /* | |
393 | * FIXME: uri_parse should be able to take as parameter the protocol | |
394 | * type to check validity with or the exclusion. For now only check on | |
395 | * the parsing validity it will fail later on. | |
396 | * */ | |
397 | ret_size = uri_parse(url, &uri); | |
398 | if (ret_size < 0) { | |
399 | ret = -LTTNG_ERR_INVALID; | |
400 | goto end; | |
401 | } | |
402 | ||
403 | if (uri[0].port == 0) { | |
404 | uri[0].port = DEFAULT_NETWORK_DATA_PORT; | |
405 | } | |
406 | ||
407 | url_str = zmalloc(PATH_MAX); | |
408 | if (!url_str) { | |
409 | /* FIXME: return valid error */ | |
410 | ret = LTTNG_ERR_INVALID; | |
411 | goto end; | |
412 | } | |
413 | ||
414 | tmp = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
415 | if (tmp < 0) { | |
416 | ret = -LTTNG_ERR_INVALID; | |
417 | goto end; | |
418 | } | |
419 | ||
420 | raw_str = strndup(url, PATH_MAX); | |
421 | if (!raw_str) { | |
422 | /* FIXME: return valid error */ | |
423 | ret = LTTNG_ERR_INVALID; | |
424 | goto end; | |
425 | } | |
426 | ||
427 | /* Squash old value if any */ | |
428 | free(attr->override_attr.data_url); | |
429 | free(attr->raw_override_data_url); | |
430 | ||
431 | /* Populate the object */ | |
432 | attr->override_attr.data_url = url_str; | |
433 | attr->raw_override_data_url = raw_str; | |
434 | ||
435 | url_str = NULL; | |
436 | raw_str = NULL; | |
437 | end: | |
438 | free(raw_str); | |
439 | free(url_str); | |
440 | free(uri); | |
441 | return ret; | |
442 | } | |
443 | ||
444 | int lttng_load_session_attr_set_override_url( | |
445 | struct lttng_load_session_attr *attr, const char *url) | |
446 | { | |
447 | int ret = 0; | |
448 | ssize_t ret_size; | |
449 | struct lttng_uri *uri = NULL; | |
450 | char *raw_url_str = NULL; | |
451 | char *raw_path_str = NULL; | |
452 | char *path_str = NULL; | |
453 | char *raw_ctrl_str = NULL; | |
454 | char *ctrl_str = NULL; | |
455 | char *raw_data_str = NULL; | |
456 | char *data_str = NULL; | |
457 | char buffer[PATH_MAX]; | |
458 | int tmp = 0; | |
459 | ||
460 | if (!attr) { | |
461 | ret = -LTTNG_ERR_INVALID; | |
462 | goto end; | |
463 | } | |
464 | ||
465 | ||
466 | /* | |
467 | * FIXME: uri_parse should be able to take as parameter the protocol | |
468 | * type to check validity with or the exclusion. For now only check on | |
469 | * the parsing validity it will fail later on. | |
470 | * */ | |
471 | ret_size = uri_parse_str_urls(url, NULL, &uri); | |
472 | if (ret_size < 0 || ret_size > 2) { | |
473 | ret = -LTTNG_ERR_INVALID; | |
474 | goto end; | |
475 | } | |
476 | ||
477 | raw_url_str = strndup(url, PATH_MAX); | |
478 | if (!raw_url_str) { | |
479 | /* FIXME: return valid error */ | |
480 | ret = LTTNG_ERR_INVALID; | |
481 | goto end; | |
482 | } | |
483 | ||
484 | /* Fetch path | ctrl && data string url */ | |
485 | tmp = uri_to_str_url(&uri[0], buffer, sizeof(buffer)); | |
486 | if (tmp < 0) { | |
487 | ret = -LTTNG_ERR_INVALID; | |
488 | goto end; | |
489 | } | |
490 | ||
491 | switch (uri[0].dtype) { | |
492 | case LTTNG_DST_PATH: | |
493 | raw_path_str = strndup(buffer, PATH_MAX); | |
494 | if (!raw_path_str) { | |
495 | /* FIXME: return valid error */ | |
496 | ret = LTTNG_ERR_INVALID; | |
497 | goto end; | |
498 | } | |
499 | ||
500 | path_str = strndup(raw_path_str, PATH_MAX); | |
501 | if (!path_str) { | |
502 | /* FIXME: return valid error */ | |
503 | ret = LTTNG_ERR_INVALID; | |
504 | goto end; | |
505 | } | |
506 | break; | |
507 | case LTTNG_DST_IPV4: | |
508 | case LTTNG_DST_IPV6: | |
509 | if (ret_size != 2) { | |
510 | ret = -LTTNG_ERR_INVALID; | |
511 | goto end; | |
512 | } | |
513 | ||
514 | raw_ctrl_str = strndup(buffer, PATH_MAX); | |
515 | if (!raw_ctrl_str) { | |
516 | /* FIXME: return valid error */ | |
517 | ret = LTTNG_ERR_INVALID; | |
518 | goto end; | |
519 | } | |
520 | ||
521 | ctrl_str = strndup(raw_ctrl_str, PATH_MAX); | |
522 | if (!ctrl_str) { | |
523 | /* FIXME: return valid error */ | |
524 | ret = LTTNG_ERR_INVALID; | |
525 | goto end; | |
526 | } | |
527 | ||
528 | /* Fetch the data uri */ | |
529 | tmp = uri_to_str_url(&uri[1], buffer, sizeof(buffer)); | |
530 | if (tmp < 0) { | |
531 | ret = -LTTNG_ERR_INVALID; | |
532 | goto end; | |
533 | } | |
534 | ||
535 | raw_data_str = strndup(buffer, PATH_MAX); | |
536 | if (!raw_data_str) { | |
537 | /* FIXME: return valid error */ | |
538 | ret = LTTNG_ERR_INVALID; | |
539 | goto end; | |
540 | } | |
541 | ||
542 | data_str = strndup(raw_data_str, PATH_MAX); | |
543 | if (!data_str) { | |
544 | /* FIXME: return valid error */ | |
545 | ret = LTTNG_ERR_INVALID; | |
546 | goto end; | |
547 | } | |
548 | ||
549 | break; | |
550 | default: | |
551 | ret = -LTTNG_ERR_INVALID; | |
552 | goto end; | |
553 | } | |
554 | ||
555 | free(attr->override_attr.path_url); | |
556 | free(attr->override_attr.ctrl_url); | |
557 | free(attr->override_attr.data_url); | |
558 | free(attr->raw_override_url); | |
559 | free(attr->raw_override_path_url); | |
560 | free(attr->raw_override_ctrl_url); | |
561 | free(attr->raw_override_data_url); | |
562 | ||
563 | attr->override_attr.path_url = path_str; | |
564 | attr->override_attr.ctrl_url = ctrl_str; | |
565 | attr->override_attr.data_url = data_str; | |
566 | ||
567 | attr->raw_override_url = raw_url_str; | |
568 | attr->raw_override_path_url = raw_path_str; | |
569 | attr->raw_override_ctrl_url = raw_ctrl_str; | |
570 | attr->raw_override_data_url = raw_data_str; | |
571 | ||
572 | /* Pass data responsability to the struct */ | |
573 | raw_url_str = NULL; | |
574 | raw_path_str = NULL; | |
575 | path_str = NULL; | |
576 | raw_ctrl_str = NULL; | |
577 | ctrl_str = NULL; | |
578 | raw_data_str = NULL; | |
579 | data_str = NULL; | |
580 | ||
581 | end: | |
582 | free(raw_path_str); | |
583 | free(path_str); | |
584 | free(raw_ctrl_str); | |
585 | free(ctrl_str); | |
586 | free(raw_data_str); | |
587 | free(data_str); | |
588 | free(raw_url_str); | |
589 | free(uri); | |
590 | return ret; | |
591 | } | |
9245bd0e DG |
592 | /* |
593 | * The lttng-ctl API does not expose all the information needed to load the | |
594 | * session configurations. Thus, we must send a load command to the session | |
595 | * daemon which will, in turn, load its current session configuration. | |
596 | */ | |
597 | int lttng_load_session(struct lttng_load_session_attr *attr) | |
598 | { | |
599 | int ret; | |
18e29540 | 600 | const char *url, *session_name; |
9245bd0e DG |
601 | |
602 | if (!attr) { | |
603 | ret = -LTTNG_ERR_INVALID; | |
604 | goto end; | |
605 | } | |
606 | ||
18e29540 JG |
607 | url = attr->input_url[0] != '\0' ? attr->input_url : NULL; |
608 | session_name = attr->session_name[0] != '\0' ? | |
609 | attr->session_name : NULL; | |
610 | ||
611 | ret = config_load_session(url, session_name, attr->overwrite, 0); | |
9245bd0e DG |
612 | |
613 | end: | |
614 | return ret; | |
615 | } |