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