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_ctrl_url( |
93 | struct lttng_load_session_attr *attr) | |
94 | { | |
95 | const char *ret = NULL; | |
96 | ||
49c360e8 JR |
97 | if (!attr || !attr->override_attr) { |
98 | goto end; | |
a2a75fa4 JR |
99 | } |
100 | ||
49c360e8 JR |
101 | ret = attr->raw_override_ctrl_url; |
102 | end: | |
a2a75fa4 JR |
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 | ||
49c360e8 JR |
111 | if (!attr || !attr->override_attr) { |
112 | goto end; | |
a2a75fa4 JR |
113 | } |
114 | ||
49c360e8 JR |
115 | ret = attr->raw_override_data_url; |
116 | end: | |
a2a75fa4 JR |
117 | return ret; |
118 | } | |
119 | ||
120 | const char *lttng_load_session_attr_get_override_url( | |
121 | struct lttng_load_session_attr *attr) | |
122 | { | |
123 | const char *ret = NULL; | |
124 | ||
49c360e8 JR |
125 | if (!attr || !attr->override_attr) { |
126 | goto end; | |
127 | } | |
128 | ||
129 | if ((attr->override_attr->path_url || | |
1b08cbce JR |
130 | (attr->override_attr->ctrl_url && |
131 | attr->override_attr->data_url))) { | |
a2a75fa4 JR |
132 | ret = attr->raw_override_url; |
133 | } | |
49c360e8 | 134 | end: |
a2a75fa4 JR |
135 | return ret; |
136 | } | |
137 | ||
9245bd0e DG |
138 | int lttng_load_session_attr_set_session_name( |
139 | struct lttng_load_session_attr *attr, const char *session_name) | |
140 | { | |
141 | int ret = 0; | |
142 | ||
143 | if (!attr) { | |
144 | ret = -LTTNG_ERR_INVALID; | |
145 | goto error; | |
146 | } | |
147 | ||
148 | if (session_name) { | |
149 | size_t len; | |
150 | ||
151 | len = strlen(session_name); | |
36d2e35d | 152 | if (len >= LTTNG_NAME_MAX) { |
9245bd0e DG |
153 | ret = -LTTNG_ERR_INVALID; |
154 | goto error; | |
155 | } | |
156 | ||
157 | strncpy(attr->session_name, session_name, len); | |
158 | } else { | |
159 | attr->session_name[0] = '\0'; | |
160 | } | |
161 | error: | |
162 | return ret; | |
163 | } | |
164 | ||
165 | int lttng_load_session_attr_set_input_url( | |
166 | struct lttng_load_session_attr *attr, const char *url) | |
167 | { | |
168 | int ret = 0; | |
584e475e JR |
169 | size_t len; |
170 | ssize_t size; | |
9245bd0e DG |
171 | struct lttng_uri *uris = NULL; |
172 | ||
173 | if (!attr) { | |
174 | ret = -LTTNG_ERR_INVALID; | |
175 | goto error; | |
176 | } | |
177 | ||
178 | if (!url) { | |
179 | attr->input_url[0] = '\0'; | |
180 | ret = 0; | |
181 | goto end; | |
182 | } | |
183 | ||
184 | len = strlen(url); | |
185 | if (len >= PATH_MAX) { | |
186 | ret = -LTTNG_ERR_INVALID; | |
187 | goto error; | |
188 | } | |
189 | ||
190 | size = uri_parse_str_urls(url, NULL, &uris); | |
191 | if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) { | |
192 | ret = -LTTNG_ERR_INVALID; | |
193 | goto error; | |
194 | } | |
195 | ||
196 | /* Copy string plus the NULL terminated byte. */ | |
197 | lttng_ctl_copy_string(attr->input_url, uris[0].dst.path, | |
198 | sizeof(attr->input_url)); | |
199 | ||
200 | end: | |
201 | error: | |
202 | free(uris); | |
203 | return ret; | |
204 | } | |
205 | ||
206 | int lttng_load_session_attr_set_overwrite( | |
207 | struct lttng_load_session_attr *attr, int overwrite) | |
208 | { | |
209 | int ret = 0; | |
210 | ||
211 | if (!attr) { | |
212 | ret = -LTTNG_ERR_INVALID; | |
213 | goto end; | |
214 | } | |
215 | ||
216 | attr->overwrite = !!overwrite; | |
217 | end: | |
218 | return ret; | |
219 | } | |
220 | ||
a2a75fa4 JR |
221 | int lttng_load_session_attr_set_override_ctrl_url( |
222 | struct lttng_load_session_attr *attr, const char *url) | |
223 | { | |
224 | int ret = 0; | |
225 | ssize_t ret_size; | |
226 | struct lttng_uri *uri = NULL; | |
227 | char *url_str = NULL; | |
228 | char *raw_str = NULL; | |
229 | ||
230 | if (!attr) { | |
231 | ret = -LTTNG_ERR_INVALID; | |
232 | goto end; | |
233 | } | |
234 | ||
1b08cbce JR |
235 | if (!attr->override_attr) { |
236 | attr->override_attr = zmalloc( | |
237 | sizeof(struct config_load_session_override_attr)); | |
238 | if (!attr->override_attr) { | |
239 | ret = -LTTNG_ERR_NOMEM; | |
240 | goto end; | |
241 | } | |
242 | } | |
243 | ||
244 | if (attr->override_attr->path_url) { | |
a2a75fa4 | 245 | /* |
1b08cbce JR |
246 | * Setting a ctrl override after a path override makes no sense. |
247 | */ | |
a2a75fa4 JR |
248 | ret = -LTTNG_ERR_INVALID; |
249 | goto end; | |
250 | } | |
251 | ||
252 | /* | |
253 | * FIXME: uri_parse should be able to take as parameter the protocol | |
254 | * type to validate "url". For now only check the parsing goes through; | |
255 | * it will fail later on. | |
256 | */ | |
257 | ret_size = uri_parse(url, &uri); | |
258 | if (ret_size < 0) { | |
259 | ret = -LTTNG_ERR_INVALID; | |
260 | goto end; | |
261 | } | |
262 | ||
263 | if (uri[0].port == 0) { | |
264 | uri[0].port = DEFAULT_NETWORK_CONTROL_PORT; | |
265 | } | |
266 | ||
267 | url_str = zmalloc(PATH_MAX); | |
268 | if (!url_str) { | |
269 | /* FIXME: return valid error */ | |
270 | ret = -LTTNG_ERR_NOMEM; | |
271 | goto end; | |
272 | } | |
273 | ||
274 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
275 | if (ret < 0) { | |
276 | ret = -LTTNG_ERR_INVALID; | |
277 | goto end; | |
278 | } | |
279 | ret = 0; | |
280 | ||
281 | raw_str = lttng_strndup(url, PATH_MAX); | |
282 | if (!raw_str) { | |
283 | ret = -LTTNG_ERR_NOMEM; | |
284 | goto end; | |
285 | } | |
286 | ||
287 | /* Squash old value if any */ | |
1b08cbce | 288 | free(attr->override_attr->ctrl_url); |
a2a75fa4 JR |
289 | free(attr->raw_override_ctrl_url); |
290 | ||
291 | /* Populate the object */ | |
1b08cbce | 292 | attr->override_attr->ctrl_url = url_str; |
a2a75fa4 JR |
293 | attr->raw_override_ctrl_url = raw_str; |
294 | ||
295 | /* Ownership passed to attr. */ | |
296 | url_str = NULL; | |
297 | raw_str = NULL; | |
298 | ||
299 | end: | |
300 | free(raw_str); | |
301 | free(url_str); | |
302 | free(uri); | |
303 | return ret; | |
304 | } | |
305 | ||
306 | int lttng_load_session_attr_set_override_data_url( | |
307 | struct lttng_load_session_attr *attr, const char *url) | |
308 | { | |
309 | int ret = 0; | |
310 | ssize_t ret_size; | |
311 | struct lttng_uri *uri = NULL; | |
312 | char *url_str = NULL; | |
313 | char *raw_str = NULL; | |
314 | ||
315 | if (!attr) { | |
316 | ret = -LTTNG_ERR_INVALID; | |
317 | goto end; | |
318 | } | |
319 | ||
1b08cbce JR |
320 | if (!attr->override_attr) { |
321 | attr->override_attr = zmalloc( | |
322 | sizeof(struct config_load_session_override_attr)); | |
323 | if (!attr->override_attr) { | |
324 | ret = -LTTNG_ERR_NOMEM; | |
325 | goto end; | |
326 | } | |
327 | } | |
328 | ||
329 | if (attr->override_attr->path_url) { | |
330 | /* | |
331 | * Setting a data override after a path override makes no sense. | |
332 | */ | |
a2a75fa4 JR |
333 | ret = -LTTNG_ERR_INVALID; |
334 | goto end; | |
335 | } | |
336 | ||
337 | /* | |
338 | * FIXME: uri_parse should be able to take as parameter the protocol | |
339 | * type to validate "url". For now only check the parsing goes through; | |
340 | * it will fail later on. | |
341 | */ | |
342 | ret_size = uri_parse(url, &uri); | |
343 | if (ret_size < 0) { | |
344 | ret = -LTTNG_ERR_INVALID; | |
345 | goto end; | |
346 | } | |
347 | ||
348 | if (uri[0].port == 0) { | |
349 | uri[0].port = DEFAULT_NETWORK_DATA_PORT; | |
350 | } | |
351 | ||
352 | url_str = zmalloc(PATH_MAX); | |
353 | if (!url_str) { | |
354 | ret = -LTTNG_ERR_NOMEM; | |
355 | goto end; | |
356 | } | |
357 | ||
358 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
359 | if (ret < 0) { | |
360 | ret = -LTTNG_ERR_INVALID; | |
361 | goto end; | |
362 | } | |
363 | ret = 0; | |
364 | ||
365 | raw_str = lttng_strndup(url, PATH_MAX); | |
366 | if (!raw_str) { | |
367 | ret = -LTTNG_ERR_NOMEM; | |
368 | goto end; | |
369 | } | |
370 | ||
371 | /* Squash old value if any */ | |
1b08cbce | 372 | free(attr->override_attr->data_url); |
a2a75fa4 JR |
373 | free(attr->raw_override_data_url); |
374 | ||
375 | /* Populate the object */ | |
1b08cbce | 376 | attr->override_attr->data_url = url_str; |
a2a75fa4 JR |
377 | attr->raw_override_data_url = raw_str; |
378 | ||
379 | /* Ownership passed to attr. */ | |
380 | url_str = NULL; | |
381 | raw_str = NULL; | |
382 | end: | |
383 | free(raw_str); | |
384 | free(url_str); | |
385 | free(uri); | |
386 | return ret; | |
387 | } | |
388 | ||
389 | int lttng_load_session_attr_set_override_url( | |
390 | struct lttng_load_session_attr *attr, const char *url) | |
391 | { | |
392 | int ret = 0; | |
393 | ssize_t ret_size; | |
394 | struct lttng_uri *uri = NULL; | |
395 | char *raw_url_str = NULL; | |
396 | char *raw_path_str = NULL; | |
397 | char *path_str = NULL; | |
398 | char *raw_ctrl_str = NULL; | |
399 | char *ctrl_str = NULL; | |
400 | char *raw_data_str = NULL; | |
401 | char *data_str = NULL; | |
402 | char buffer[PATH_MAX]; | |
403 | ||
404 | if (!attr || !url || strlen(url) >= PATH_MAX) { | |
405 | ret = -LTTNG_ERR_INVALID; | |
406 | goto end; | |
407 | } | |
408 | ||
1b08cbce JR |
409 | if (!attr->override_attr) { |
410 | attr->override_attr = zmalloc( | |
411 | sizeof(struct config_load_session_override_attr)); | |
412 | if (!attr->override_attr) { | |
413 | ret = -LTTNG_ERR_NOMEM; | |
414 | goto end; | |
415 | } | |
416 | } | |
417 | ||
a2a75fa4 JR |
418 | /* |
419 | * FIXME: uri_parse should be able to take as parameter the protocol | |
420 | * type to validate "url". For now only check the parsing goes through; | |
421 | * it will fail later on. | |
422 | */ | |
423 | ret_size = uri_parse_str_urls(url, NULL, &uri); | |
424 | if (ret_size < 0 || ret_size > 2) { | |
425 | /* Unexpected URL format. */ | |
426 | ret = -LTTNG_ERR_INVALID; | |
427 | goto end; | |
428 | } | |
429 | ||
430 | raw_url_str = lttng_strndup(url, PATH_MAX); | |
431 | if (!raw_url_str) { | |
432 | ret = -LTTNG_ERR_NOMEM; | |
433 | goto end; | |
434 | } | |
435 | ||
436 | /* Get path | ctrl && data string URL. */ | |
437 | ret = uri_to_str_url(&uri[0], buffer, sizeof(buffer)); | |
438 | if (ret < 0 || ret >= PATH_MAX) { | |
439 | ret = -LTTNG_ERR_INVALID; | |
440 | goto end; | |
441 | } | |
442 | ret = 0; | |
443 | ||
444 | switch (uri[0].dtype) { | |
445 | case LTTNG_DST_PATH: | |
446 | raw_path_str = lttng_strndup(buffer, PATH_MAX); | |
447 | if (!raw_path_str) { | |
448 | ret = -LTTNG_ERR_NOMEM; | |
449 | goto end; | |
450 | } | |
451 | ||
452 | path_str = lttng_strndup(raw_path_str, PATH_MAX); | |
453 | if (!path_str) { | |
454 | ret = -LTTNG_ERR_NOMEM; | |
455 | goto end; | |
456 | } | |
457 | break; | |
458 | case LTTNG_DST_IPV4: | |
459 | case LTTNG_DST_IPV6: | |
460 | if (ret_size != 2) { | |
461 | ret = -LTTNG_ERR_INVALID; | |
462 | goto end; | |
463 | } | |
464 | ||
465 | raw_ctrl_str = lttng_strndup(buffer, PATH_MAX); | |
466 | if (!raw_ctrl_str) { | |
467 | ret = -LTTNG_ERR_NOMEM; | |
468 | goto end; | |
469 | } | |
470 | ||
471 | ctrl_str = lttng_strndup(raw_ctrl_str, PATH_MAX); | |
472 | if (!ctrl_str) { | |
473 | ret = -LTTNG_ERR_NOMEM; | |
474 | goto end; | |
475 | } | |
476 | ||
477 | /* Get the data uri. */ | |
478 | ret = uri_to_str_url(&uri[1], buffer, sizeof(buffer)); | |
479 | if (ret < 0) { | |
480 | ret = -LTTNG_ERR_INVALID; | |
481 | goto end; | |
482 | } | |
483 | ret = 0; | |
484 | ||
485 | raw_data_str = lttng_strndup(buffer, PATH_MAX); | |
486 | if (!raw_data_str) { | |
487 | ret = -LTTNG_ERR_NOMEM; | |
488 | goto end; | |
489 | } | |
490 | ||
491 | data_str = lttng_strndup(raw_data_str, PATH_MAX); | |
492 | if (!data_str) { | |
493 | ret = -LTTNG_ERR_NOMEM; | |
494 | goto end; | |
495 | } | |
496 | ||
497 | break; | |
498 | default: | |
499 | ret = -LTTNG_ERR_INVALID; | |
500 | goto end; | |
501 | } | |
502 | ||
503 | reset_load_session_attr_urls(attr); | |
504 | ||
1b08cbce JR |
505 | attr->override_attr->path_url = path_str; |
506 | attr->override_attr->ctrl_url = ctrl_str; | |
507 | attr->override_attr->data_url = data_str; | |
a2a75fa4 JR |
508 | |
509 | attr->raw_override_url = raw_url_str; | |
510 | attr->raw_override_path_url = raw_path_str; | |
511 | attr->raw_override_ctrl_url = raw_ctrl_str; | |
512 | attr->raw_override_data_url = raw_data_str; | |
513 | ||
514 | /* Pass data ownership to attr. */ | |
515 | raw_url_str = NULL; | |
516 | raw_path_str = NULL; | |
517 | path_str = NULL; | |
518 | raw_ctrl_str = NULL; | |
519 | ctrl_str = NULL; | |
520 | raw_data_str = NULL; | |
521 | data_str = NULL; | |
522 | ||
523 | end: | |
524 | free(raw_path_str); | |
525 | free(path_str); | |
526 | free(raw_ctrl_str); | |
527 | free(ctrl_str); | |
528 | free(raw_data_str); | |
529 | free(data_str); | |
530 | free(raw_url_str); | |
531 | free(uri); | |
532 | return ret; | |
533 | } | |
0d4bab5e | 534 | |
9245bd0e DG |
535 | int lttng_load_session(struct lttng_load_session_attr *attr) |
536 | { | |
537 | int ret; | |
18e29540 | 538 | const char *url, *session_name; |
9245bd0e DG |
539 | |
540 | if (!attr) { | |
541 | ret = -LTTNG_ERR_INVALID; | |
542 | goto end; | |
543 | } | |
544 | ||
18e29540 JG |
545 | url = attr->input_url[0] != '\0' ? attr->input_url : NULL; |
546 | session_name = attr->session_name[0] != '\0' ? | |
547 | attr->session_name : NULL; | |
548 | ||
1b08cbce JR |
549 | ret = config_load_session(url, session_name, attr->overwrite, 0, |
550 | attr->override_attr); | |
9245bd0e DG |
551 | |
552 | end: | |
553 | return ret; | |
554 | } |