Commit | Line | Data |
---|---|---|
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> | |
a2a75fa4 | 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> |
a2a75fa4 JR |
28 | #include <common/uri.h> |
29 | #include <common/macros.h> | |
30 | #include <common/compat/string.h> | |
9245bd0e DG |
31 | |
32 | #include "lttng-ctl-helper.h" | |
33 | ||
34 | struct lttng_load_session_attr *lttng_load_session_attr_create(void) | |
35 | { | |
36 | return zmalloc(sizeof(struct lttng_load_session_attr)); | |
37 | } | |
38 | ||
a2a75fa4 JR |
39 | static |
40 | void reset_load_session_attr_urls(struct lttng_load_session_attr *attr) | |
41 | { | |
42 | free(attr->raw_override_url); | |
43 | free(attr->raw_override_path_url); | |
44 | free(attr->raw_override_ctrl_url); | |
45 | free(attr->raw_override_data_url); | |
1b08cbce JR |
46 | if (attr->override_attr) { |
47 | free(attr->override_attr->path_url); | |
48 | free(attr->override_attr->ctrl_url); | |
49 | free(attr->override_attr->data_url); | |
2aaf5fc7 | 50 | free(attr->override_attr->session_name); |
1b08cbce | 51 | } |
a2a75fa4 JR |
52 | } |
53 | ||
9245bd0e DG |
54 | void lttng_load_session_attr_destroy(struct lttng_load_session_attr *attr) |
55 | { | |
56 | if (attr) { | |
a2a75fa4 | 57 | reset_load_session_attr_urls(attr); |
1b08cbce | 58 | free(attr->override_attr); |
9245bd0e DG |
59 | free(attr); |
60 | } | |
61 | } | |
62 | ||
2aaf5fc7 JR |
63 | static int validate_attr(const struct lttng_load_session_attr *attr) |
64 | { | |
65 | int ret = 0; | |
66 | ||
67 | if (!attr) { | |
68 | ret = -LTTNG_ERR_INVALID; | |
69 | goto end; | |
70 | } | |
71 | ||
72 | if (!attr->override_attr) { | |
73 | goto end; | |
74 | } | |
75 | ||
76 | /* | |
77 | * Refuse override name if the objective is to load multiple session | |
78 | * since this operation is ambiguous while loading multiple session. | |
79 | */ | |
80 | if (attr->override_attr->session_name | |
81 | && attr->session_name[0] == '\0') { | |
82 | ret = -LTTNG_ERR_INVALID; | |
83 | goto end; | |
84 | } | |
85 | end: | |
86 | return ret; | |
87 | } | |
88 | ||
9245bd0e DG |
89 | const char *lttng_load_session_attr_get_session_name( |
90 | struct lttng_load_session_attr *attr) | |
91 | { | |
92 | const char *ret = NULL; | |
93 | ||
94 | if (attr && attr->session_name[0]) { | |
95 | ret = attr->session_name; | |
96 | } | |
97 | ||
98 | return ret; | |
99 | } | |
100 | ||
101 | const char *lttng_load_session_attr_get_input_url( | |
102 | struct lttng_load_session_attr *attr) | |
103 | { | |
104 | const char *ret = NULL; | |
105 | ||
106 | if (attr && attr->input_url[0]) { | |
107 | ret = attr->input_url; | |
108 | } | |
109 | ||
110 | return ret; | |
111 | } | |
112 | ||
113 | int lttng_load_session_attr_get_overwrite( | |
114 | struct lttng_load_session_attr *attr) | |
115 | { | |
116 | return attr ? attr->overwrite : -LTTNG_ERR_INVALID; | |
117 | } | |
118 | ||
a2a75fa4 JR |
119 | const char *lttng_load_session_attr_get_override_ctrl_url( |
120 | struct lttng_load_session_attr *attr) | |
121 | { | |
122 | const char *ret = NULL; | |
123 | ||
49c360e8 JR |
124 | if (!attr || !attr->override_attr) { |
125 | goto end; | |
a2a75fa4 JR |
126 | } |
127 | ||
49c360e8 JR |
128 | ret = attr->raw_override_ctrl_url; |
129 | end: | |
a2a75fa4 JR |
130 | return ret; |
131 | } | |
132 | ||
133 | const char *lttng_load_session_attr_get_override_data_url( | |
134 | struct lttng_load_session_attr *attr) | |
135 | { | |
136 | const char *ret = NULL; | |
137 | ||
49c360e8 JR |
138 | if (!attr || !attr->override_attr) { |
139 | goto end; | |
a2a75fa4 JR |
140 | } |
141 | ||
49c360e8 JR |
142 | ret = attr->raw_override_data_url; |
143 | end: | |
a2a75fa4 JR |
144 | return ret; |
145 | } | |
146 | ||
147 | const char *lttng_load_session_attr_get_override_url( | |
148 | struct lttng_load_session_attr *attr) | |
149 | { | |
150 | const char *ret = NULL; | |
151 | ||
49c360e8 JR |
152 | if (!attr || !attr->override_attr) { |
153 | goto end; | |
154 | } | |
155 | ||
156 | if ((attr->override_attr->path_url || | |
1b08cbce JR |
157 | (attr->override_attr->ctrl_url && |
158 | attr->override_attr->data_url))) { | |
a2a75fa4 JR |
159 | ret = attr->raw_override_url; |
160 | } | |
49c360e8 | 161 | end: |
a2a75fa4 JR |
162 | return ret; |
163 | } | |
164 | ||
2aaf5fc7 JR |
165 | const char *lttng_load_session_attr_get_override_session_name( |
166 | struct lttng_load_session_attr *attr) | |
167 | { | |
168 | const char *ret = NULL; | |
169 | ||
170 | if (!attr || !attr->override_attr) { | |
171 | goto end; | |
172 | } | |
173 | ||
174 | ret = attr->override_attr->session_name; | |
175 | end: | |
176 | return ret; | |
177 | } | |
178 | ||
9245bd0e DG |
179 | int lttng_load_session_attr_set_session_name( |
180 | struct lttng_load_session_attr *attr, const char *session_name) | |
181 | { | |
182 | int ret = 0; | |
183 | ||
184 | if (!attr) { | |
185 | ret = -LTTNG_ERR_INVALID; | |
186 | goto error; | |
187 | } | |
188 | ||
189 | if (session_name) { | |
190 | size_t len; | |
191 | ||
192 | len = strlen(session_name); | |
36d2e35d | 193 | if (len >= LTTNG_NAME_MAX) { |
9245bd0e DG |
194 | ret = -LTTNG_ERR_INVALID; |
195 | goto error; | |
196 | } | |
197 | ||
198 | strncpy(attr->session_name, session_name, len); | |
199 | } else { | |
200 | attr->session_name[0] = '\0'; | |
201 | } | |
202 | error: | |
203 | return ret; | |
204 | } | |
205 | ||
206 | int lttng_load_session_attr_set_input_url( | |
207 | struct lttng_load_session_attr *attr, const char *url) | |
208 | { | |
209 | int ret = 0; | |
584e475e JR |
210 | size_t len; |
211 | ssize_t size; | |
9245bd0e DG |
212 | struct lttng_uri *uris = NULL; |
213 | ||
214 | if (!attr) { | |
215 | ret = -LTTNG_ERR_INVALID; | |
216 | goto error; | |
217 | } | |
218 | ||
219 | if (!url) { | |
220 | attr->input_url[0] = '\0'; | |
221 | ret = 0; | |
222 | goto end; | |
223 | } | |
224 | ||
225 | len = strlen(url); | |
226 | if (len >= PATH_MAX) { | |
227 | ret = -LTTNG_ERR_INVALID; | |
228 | goto error; | |
229 | } | |
230 | ||
231 | size = uri_parse_str_urls(url, NULL, &uris); | |
232 | if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) { | |
233 | ret = -LTTNG_ERR_INVALID; | |
234 | goto error; | |
235 | } | |
236 | ||
237 | /* Copy string plus the NULL terminated byte. */ | |
238 | lttng_ctl_copy_string(attr->input_url, uris[0].dst.path, | |
239 | sizeof(attr->input_url)); | |
240 | ||
241 | end: | |
242 | error: | |
243 | free(uris); | |
244 | return ret; | |
245 | } | |
246 | ||
247 | int lttng_load_session_attr_set_overwrite( | |
248 | struct lttng_load_session_attr *attr, int overwrite) | |
249 | { | |
250 | int ret = 0; | |
251 | ||
252 | if (!attr) { | |
253 | ret = -LTTNG_ERR_INVALID; | |
254 | goto end; | |
255 | } | |
256 | ||
257 | attr->overwrite = !!overwrite; | |
258 | end: | |
259 | return ret; | |
260 | } | |
261 | ||
a2a75fa4 JR |
262 | int lttng_load_session_attr_set_override_ctrl_url( |
263 | struct lttng_load_session_attr *attr, const char *url) | |
264 | { | |
265 | int ret = 0; | |
266 | ssize_t ret_size; | |
267 | struct lttng_uri *uri = NULL; | |
268 | char *url_str = NULL; | |
269 | char *raw_str = NULL; | |
270 | ||
271 | if (!attr) { | |
272 | ret = -LTTNG_ERR_INVALID; | |
273 | goto end; | |
274 | } | |
275 | ||
1b08cbce JR |
276 | if (!attr->override_attr) { |
277 | attr->override_attr = zmalloc( | |
278 | sizeof(struct config_load_session_override_attr)); | |
279 | if (!attr->override_attr) { | |
280 | ret = -LTTNG_ERR_NOMEM; | |
281 | goto end; | |
282 | } | |
283 | } | |
284 | ||
285 | if (attr->override_attr->path_url) { | |
a2a75fa4 | 286 | /* |
1b08cbce JR |
287 | * Setting a ctrl override after a path override makes no sense. |
288 | */ | |
a2a75fa4 JR |
289 | ret = -LTTNG_ERR_INVALID; |
290 | goto end; | |
291 | } | |
292 | ||
293 | /* | |
294 | * FIXME: uri_parse should be able to take as parameter the protocol | |
295 | * type to validate "url". For now only check the parsing goes through; | |
296 | * it will fail later on. | |
297 | */ | |
298 | ret_size = uri_parse(url, &uri); | |
299 | if (ret_size < 0) { | |
300 | ret = -LTTNG_ERR_INVALID; | |
301 | goto end; | |
302 | } | |
303 | ||
304 | if (uri[0].port == 0) { | |
305 | uri[0].port = DEFAULT_NETWORK_CONTROL_PORT; | |
306 | } | |
307 | ||
308 | url_str = zmalloc(PATH_MAX); | |
309 | if (!url_str) { | |
310 | /* FIXME: return valid error */ | |
311 | ret = -LTTNG_ERR_NOMEM; | |
312 | goto end; | |
313 | } | |
314 | ||
315 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
316 | if (ret < 0) { | |
317 | ret = -LTTNG_ERR_INVALID; | |
318 | goto end; | |
319 | } | |
320 | ret = 0; | |
321 | ||
322 | raw_str = lttng_strndup(url, PATH_MAX); | |
323 | if (!raw_str) { | |
324 | ret = -LTTNG_ERR_NOMEM; | |
325 | goto end; | |
326 | } | |
327 | ||
328 | /* Squash old value if any */ | |
1b08cbce | 329 | free(attr->override_attr->ctrl_url); |
a2a75fa4 JR |
330 | free(attr->raw_override_ctrl_url); |
331 | ||
332 | /* Populate the object */ | |
1b08cbce | 333 | attr->override_attr->ctrl_url = url_str; |
a2a75fa4 JR |
334 | attr->raw_override_ctrl_url = raw_str; |
335 | ||
336 | /* Ownership passed to attr. */ | |
337 | url_str = NULL; | |
338 | raw_str = NULL; | |
339 | ||
340 | end: | |
341 | free(raw_str); | |
342 | free(url_str); | |
343 | free(uri); | |
344 | return ret; | |
345 | } | |
346 | ||
347 | int lttng_load_session_attr_set_override_data_url( | |
348 | struct lttng_load_session_attr *attr, const char *url) | |
349 | { | |
350 | int ret = 0; | |
351 | ssize_t ret_size; | |
352 | struct lttng_uri *uri = NULL; | |
353 | char *url_str = NULL; | |
354 | char *raw_str = NULL; | |
355 | ||
356 | if (!attr) { | |
357 | ret = -LTTNG_ERR_INVALID; | |
358 | goto end; | |
359 | } | |
360 | ||
1b08cbce JR |
361 | if (!attr->override_attr) { |
362 | attr->override_attr = zmalloc( | |
363 | sizeof(struct config_load_session_override_attr)); | |
364 | if (!attr->override_attr) { | |
365 | ret = -LTTNG_ERR_NOMEM; | |
366 | goto end; | |
367 | } | |
368 | } | |
369 | ||
370 | if (attr->override_attr->path_url) { | |
371 | /* | |
372 | * Setting a data override after a path override makes no sense. | |
373 | */ | |
a2a75fa4 JR |
374 | ret = -LTTNG_ERR_INVALID; |
375 | goto end; | |
376 | } | |
377 | ||
378 | /* | |
379 | * FIXME: uri_parse should be able to take as parameter the protocol | |
380 | * type to validate "url". For now only check the parsing goes through; | |
381 | * it will fail later on. | |
382 | */ | |
383 | ret_size = uri_parse(url, &uri); | |
384 | if (ret_size < 0) { | |
385 | ret = -LTTNG_ERR_INVALID; | |
386 | goto end; | |
387 | } | |
388 | ||
389 | if (uri[0].port == 0) { | |
390 | uri[0].port = DEFAULT_NETWORK_DATA_PORT; | |
391 | } | |
392 | ||
393 | url_str = zmalloc(PATH_MAX); | |
394 | if (!url_str) { | |
395 | ret = -LTTNG_ERR_NOMEM; | |
396 | goto end; | |
397 | } | |
398 | ||
399 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
400 | if (ret < 0) { | |
401 | ret = -LTTNG_ERR_INVALID; | |
402 | goto end; | |
403 | } | |
404 | ret = 0; | |
405 | ||
406 | raw_str = lttng_strndup(url, PATH_MAX); | |
407 | if (!raw_str) { | |
408 | ret = -LTTNG_ERR_NOMEM; | |
409 | goto end; | |
410 | } | |
411 | ||
412 | /* Squash old value if any */ | |
1b08cbce | 413 | free(attr->override_attr->data_url); |
a2a75fa4 JR |
414 | free(attr->raw_override_data_url); |
415 | ||
416 | /* Populate the object */ | |
1b08cbce | 417 | attr->override_attr->data_url = url_str; |
a2a75fa4 JR |
418 | attr->raw_override_data_url = raw_str; |
419 | ||
420 | /* Ownership passed to attr. */ | |
421 | url_str = NULL; | |
422 | raw_str = NULL; | |
423 | end: | |
424 | free(raw_str); | |
425 | free(url_str); | |
426 | free(uri); | |
427 | return ret; | |
428 | } | |
429 | ||
430 | int lttng_load_session_attr_set_override_url( | |
431 | struct lttng_load_session_attr *attr, const char *url) | |
432 | { | |
433 | int ret = 0; | |
434 | ssize_t ret_size; | |
435 | struct lttng_uri *uri = NULL; | |
436 | char *raw_url_str = NULL; | |
437 | char *raw_path_str = NULL; | |
438 | char *path_str = NULL; | |
439 | char *raw_ctrl_str = NULL; | |
440 | char *ctrl_str = NULL; | |
441 | char *raw_data_str = NULL; | |
442 | char *data_str = NULL; | |
443 | char buffer[PATH_MAX]; | |
444 | ||
445 | if (!attr || !url || strlen(url) >= PATH_MAX) { | |
446 | ret = -LTTNG_ERR_INVALID; | |
447 | goto end; | |
448 | } | |
449 | ||
1b08cbce JR |
450 | if (!attr->override_attr) { |
451 | attr->override_attr = zmalloc( | |
452 | sizeof(struct config_load_session_override_attr)); | |
453 | if (!attr->override_attr) { | |
454 | ret = -LTTNG_ERR_NOMEM; | |
455 | goto end; | |
456 | } | |
457 | } | |
458 | ||
a2a75fa4 JR |
459 | /* |
460 | * FIXME: uri_parse should be able to take as parameter the protocol | |
461 | * type to validate "url". For now only check the parsing goes through; | |
462 | * it will fail later on. | |
463 | */ | |
464 | ret_size = uri_parse_str_urls(url, NULL, &uri); | |
465 | if (ret_size < 0 || ret_size > 2) { | |
466 | /* Unexpected URL format. */ | |
467 | ret = -LTTNG_ERR_INVALID; | |
468 | goto end; | |
469 | } | |
470 | ||
471 | raw_url_str = lttng_strndup(url, PATH_MAX); | |
472 | if (!raw_url_str) { | |
473 | ret = -LTTNG_ERR_NOMEM; | |
474 | goto end; | |
475 | } | |
476 | ||
477 | /* Get path | ctrl && data string URL. */ | |
478 | ret = uri_to_str_url(&uri[0], buffer, sizeof(buffer)); | |
479 | if (ret < 0 || ret >= PATH_MAX) { | |
480 | ret = -LTTNG_ERR_INVALID; | |
481 | goto end; | |
482 | } | |
483 | ret = 0; | |
484 | ||
485 | switch (uri[0].dtype) { | |
486 | case LTTNG_DST_PATH: | |
487 | raw_path_str = lttng_strndup(buffer, PATH_MAX); | |
488 | if (!raw_path_str) { | |
489 | ret = -LTTNG_ERR_NOMEM; | |
490 | goto end; | |
491 | } | |
492 | ||
493 | path_str = lttng_strndup(raw_path_str, PATH_MAX); | |
494 | if (!path_str) { | |
495 | ret = -LTTNG_ERR_NOMEM; | |
496 | goto end; | |
497 | } | |
498 | break; | |
499 | case LTTNG_DST_IPV4: | |
500 | case LTTNG_DST_IPV6: | |
501 | if (ret_size != 2) { | |
502 | ret = -LTTNG_ERR_INVALID; | |
503 | goto end; | |
504 | } | |
505 | ||
506 | raw_ctrl_str = lttng_strndup(buffer, PATH_MAX); | |
507 | if (!raw_ctrl_str) { | |
508 | ret = -LTTNG_ERR_NOMEM; | |
509 | goto end; | |
510 | } | |
511 | ||
512 | ctrl_str = lttng_strndup(raw_ctrl_str, PATH_MAX); | |
513 | if (!ctrl_str) { | |
514 | ret = -LTTNG_ERR_NOMEM; | |
515 | goto end; | |
516 | } | |
517 | ||
518 | /* Get the data uri. */ | |
519 | ret = uri_to_str_url(&uri[1], buffer, sizeof(buffer)); | |
520 | if (ret < 0) { | |
521 | ret = -LTTNG_ERR_INVALID; | |
522 | goto end; | |
523 | } | |
524 | ret = 0; | |
525 | ||
526 | raw_data_str = lttng_strndup(buffer, PATH_MAX); | |
527 | if (!raw_data_str) { | |
528 | ret = -LTTNG_ERR_NOMEM; | |
529 | goto end; | |
530 | } | |
531 | ||
532 | data_str = lttng_strndup(raw_data_str, PATH_MAX); | |
533 | if (!data_str) { | |
534 | ret = -LTTNG_ERR_NOMEM; | |
535 | goto end; | |
536 | } | |
537 | ||
538 | break; | |
539 | default: | |
540 | ret = -LTTNG_ERR_INVALID; | |
541 | goto end; | |
542 | } | |
543 | ||
544 | reset_load_session_attr_urls(attr); | |
545 | ||
1b08cbce JR |
546 | attr->override_attr->path_url = path_str; |
547 | attr->override_attr->ctrl_url = ctrl_str; | |
548 | attr->override_attr->data_url = data_str; | |
a2a75fa4 JR |
549 | |
550 | attr->raw_override_url = raw_url_str; | |
551 | attr->raw_override_path_url = raw_path_str; | |
552 | attr->raw_override_ctrl_url = raw_ctrl_str; | |
553 | attr->raw_override_data_url = raw_data_str; | |
554 | ||
555 | /* Pass data ownership to attr. */ | |
556 | raw_url_str = NULL; | |
557 | raw_path_str = NULL; | |
558 | path_str = NULL; | |
559 | raw_ctrl_str = NULL; | |
560 | ctrl_str = NULL; | |
561 | raw_data_str = NULL; | |
562 | data_str = NULL; | |
563 | ||
564 | end: | |
565 | free(raw_path_str); | |
566 | free(path_str); | |
567 | free(raw_ctrl_str); | |
568 | free(ctrl_str); | |
569 | free(raw_data_str); | |
570 | free(data_str); | |
571 | free(raw_url_str); | |
572 | free(uri); | |
573 | return ret; | |
574 | } | |
0d4bab5e | 575 | |
2aaf5fc7 JR |
576 | int lttng_load_session_attr_set_override_session_name( |
577 | struct lttng_load_session_attr *attr, const char *session_name) | |
578 | { | |
579 | int ret = 0; | |
580 | size_t len; | |
581 | ||
582 | if (!attr ||!session_name) { | |
583 | ret = -LTTNG_ERR_INVALID; | |
584 | goto end; | |
585 | } | |
586 | ||
587 | if (!attr->override_attr) { | |
588 | attr->override_attr = zmalloc( | |
589 | sizeof(struct config_load_session_override_attr)); | |
590 | if (!attr->override_attr) { | |
591 | ret = -LTTNG_ERR_NOMEM; | |
592 | goto end; | |
593 | } | |
594 | } | |
595 | ||
596 | len = strlen(session_name); | |
597 | if (len >= LTTNG_NAME_MAX) { | |
598 | ret = -LTTNG_ERR_INVALID; | |
599 | goto end; | |
600 | } | |
601 | ||
602 | attr->override_attr->session_name = lttng_strndup(session_name, | |
603 | len); | |
604 | if (!attr->override_attr->session_name) { | |
605 | ret = -LTTNG_ERR_NOMEM; | |
606 | goto end; | |
607 | } | |
608 | end: | |
609 | return ret; | |
610 | } | |
611 | ||
9245bd0e DG |
612 | int lttng_load_session(struct lttng_load_session_attr *attr) |
613 | { | |
614 | int ret; | |
18e29540 | 615 | const char *url, *session_name; |
9245bd0e DG |
616 | |
617 | if (!attr) { | |
618 | ret = -LTTNG_ERR_INVALID; | |
619 | goto end; | |
620 | } | |
621 | ||
2aaf5fc7 JR |
622 | ret = validate_attr(attr); |
623 | if (ret) { | |
624 | goto end; | |
625 | } | |
626 | ||
18e29540 JG |
627 | url = attr->input_url[0] != '\0' ? attr->input_url : NULL; |
628 | session_name = attr->session_name[0] != '\0' ? | |
629 | attr->session_name : NULL; | |
630 | ||
1b08cbce JR |
631 | ret = config_load_session(url, session_name, attr->overwrite, 0, |
632 | attr->override_attr); | |
9245bd0e DG |
633 | |
634 | end: | |
635 | return ret; | |
636 | } |