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