Commit | Line | Data |
---|---|---|
9245bd0e | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2014 David Goulet <dgoulet@efficios.com> |
9245bd0e | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: LGPL-2.1-only |
9245bd0e | 5 | * |
9245bd0e DG |
6 | */ |
7 | ||
6c1c0768 | 8 | #define _LGPL_SOURCE |
9245bd0e DG |
9 | #include <assert.h> |
10 | #include <string.h> | |
a2a75fa4 | 11 | #include <limits.h> |
9245bd0e DG |
12 | |
13 | #include <lttng/lttng-error.h> | |
14 | #include <lttng/load.h> | |
15 | #include <lttng/load-internal.h> | |
16 | #include <common/sessiond-comm/sessiond-comm.h> | |
f40ef1d5 | 17 | #include <common/config/session-config.h> |
a2a75fa4 JR |
18 | #include <common/uri.h> |
19 | #include <common/macros.h> | |
20 | #include <common/compat/string.h> | |
9245bd0e DG |
21 | |
22 | #include "lttng-ctl-helper.h" | |
23 | ||
24 | struct lttng_load_session_attr *lttng_load_session_attr_create(void) | |
25 | { | |
26 | return zmalloc(sizeof(struct lttng_load_session_attr)); | |
27 | } | |
28 | ||
a2a75fa4 JR |
29 | static |
30 | void reset_load_session_attr_urls(struct lttng_load_session_attr *attr) | |
31 | { | |
32 | free(attr->raw_override_url); | |
33 | free(attr->raw_override_path_url); | |
34 | free(attr->raw_override_ctrl_url); | |
35 | free(attr->raw_override_data_url); | |
1b08cbce JR |
36 | if (attr->override_attr) { |
37 | free(attr->override_attr->path_url); | |
38 | free(attr->override_attr->ctrl_url); | |
39 | free(attr->override_attr->data_url); | |
2aaf5fc7 | 40 | free(attr->override_attr->session_name); |
1b08cbce | 41 | } |
a2a75fa4 JR |
42 | } |
43 | ||
9245bd0e DG |
44 | void lttng_load_session_attr_destroy(struct lttng_load_session_attr *attr) |
45 | { | |
46 | if (attr) { | |
a2a75fa4 | 47 | reset_load_session_attr_urls(attr); |
1b08cbce | 48 | free(attr->override_attr); |
9245bd0e DG |
49 | free(attr); |
50 | } | |
51 | } | |
52 | ||
2aaf5fc7 JR |
53 | static int validate_attr(const struct lttng_load_session_attr *attr) |
54 | { | |
55 | int ret = 0; | |
56 | ||
57 | if (!attr) { | |
58 | ret = -LTTNG_ERR_INVALID; | |
59 | goto end; | |
60 | } | |
61 | ||
62 | if (!attr->override_attr) { | |
63 | goto end; | |
64 | } | |
65 | ||
66 | /* | |
67 | * Refuse override name if the objective is to load multiple session | |
68 | * since this operation is ambiguous while loading multiple session. | |
69 | */ | |
70 | if (attr->override_attr->session_name | |
71 | && attr->session_name[0] == '\0') { | |
72 | ret = -LTTNG_ERR_INVALID; | |
73 | goto end; | |
74 | } | |
75 | end: | |
76 | return ret; | |
77 | } | |
78 | ||
9245bd0e DG |
79 | const char *lttng_load_session_attr_get_session_name( |
80 | struct lttng_load_session_attr *attr) | |
81 | { | |
82 | const char *ret = NULL; | |
83 | ||
84 | if (attr && attr->session_name[0]) { | |
85 | ret = attr->session_name; | |
86 | } | |
87 | ||
88 | return ret; | |
89 | } | |
90 | ||
91 | const char *lttng_load_session_attr_get_input_url( | |
92 | struct lttng_load_session_attr *attr) | |
93 | { | |
94 | const char *ret = NULL; | |
95 | ||
96 | if (attr && attr->input_url[0]) { | |
97 | ret = attr->input_url; | |
98 | } | |
99 | ||
100 | return ret; | |
101 | } | |
102 | ||
103 | int lttng_load_session_attr_get_overwrite( | |
104 | struct lttng_load_session_attr *attr) | |
105 | { | |
106 | return attr ? attr->overwrite : -LTTNG_ERR_INVALID; | |
107 | } | |
108 | ||
a2a75fa4 JR |
109 | const char *lttng_load_session_attr_get_override_ctrl_url( |
110 | struct lttng_load_session_attr *attr) | |
111 | { | |
112 | const char *ret = NULL; | |
113 | ||
49c360e8 JR |
114 | if (!attr || !attr->override_attr) { |
115 | goto end; | |
a2a75fa4 JR |
116 | } |
117 | ||
49c360e8 JR |
118 | ret = attr->raw_override_ctrl_url; |
119 | end: | |
a2a75fa4 JR |
120 | return ret; |
121 | } | |
122 | ||
123 | const char *lttng_load_session_attr_get_override_data_url( | |
124 | struct lttng_load_session_attr *attr) | |
125 | { | |
126 | const char *ret = NULL; | |
127 | ||
49c360e8 JR |
128 | if (!attr || !attr->override_attr) { |
129 | goto end; | |
a2a75fa4 JR |
130 | } |
131 | ||
49c360e8 JR |
132 | ret = attr->raw_override_data_url; |
133 | end: | |
a2a75fa4 JR |
134 | return ret; |
135 | } | |
136 | ||
137 | const char *lttng_load_session_attr_get_override_url( | |
138 | struct lttng_load_session_attr *attr) | |
139 | { | |
140 | const char *ret = NULL; | |
141 | ||
49c360e8 JR |
142 | if (!attr || !attr->override_attr) { |
143 | goto end; | |
144 | } | |
145 | ||
146 | if ((attr->override_attr->path_url || | |
1b08cbce JR |
147 | (attr->override_attr->ctrl_url && |
148 | attr->override_attr->data_url))) { | |
a2a75fa4 JR |
149 | ret = attr->raw_override_url; |
150 | } | |
49c360e8 | 151 | end: |
a2a75fa4 JR |
152 | return ret; |
153 | } | |
154 | ||
2aaf5fc7 JR |
155 | const char *lttng_load_session_attr_get_override_session_name( |
156 | struct lttng_load_session_attr *attr) | |
157 | { | |
158 | const char *ret = NULL; | |
159 | ||
160 | if (!attr || !attr->override_attr) { | |
161 | goto end; | |
162 | } | |
163 | ||
164 | ret = attr->override_attr->session_name; | |
165 | end: | |
166 | return ret; | |
167 | } | |
168 | ||
9245bd0e DG |
169 | int lttng_load_session_attr_set_session_name( |
170 | struct lttng_load_session_attr *attr, const char *session_name) | |
171 | { | |
172 | int ret = 0; | |
173 | ||
174 | if (!attr) { | |
175 | ret = -LTTNG_ERR_INVALID; | |
176 | goto error; | |
177 | } | |
178 | ||
179 | if (session_name) { | |
180 | size_t len; | |
181 | ||
182 | len = strlen(session_name); | |
36d2e35d | 183 | if (len >= LTTNG_NAME_MAX) { |
9245bd0e DG |
184 | ret = -LTTNG_ERR_INVALID; |
185 | goto error; | |
186 | } | |
187 | ||
3716477e JG |
188 | ret = lttng_strncpy(attr->session_name, session_name, |
189 | sizeof(attr->session_name)); | |
190 | if (ret) { | |
191 | ret = -LTTNG_ERR_INVALID; | |
192 | goto error; | |
193 | } | |
9245bd0e DG |
194 | } else { |
195 | attr->session_name[0] = '\0'; | |
196 | } | |
197 | error: | |
198 | return ret; | |
199 | } | |
200 | ||
201 | int lttng_load_session_attr_set_input_url( | |
202 | struct lttng_load_session_attr *attr, const char *url) | |
203 | { | |
204 | int ret = 0; | |
584e475e JR |
205 | size_t len; |
206 | ssize_t size; | |
9245bd0e DG |
207 | struct lttng_uri *uris = NULL; |
208 | ||
209 | if (!attr) { | |
210 | ret = -LTTNG_ERR_INVALID; | |
211 | goto error; | |
212 | } | |
213 | ||
214 | if (!url) { | |
215 | attr->input_url[0] = '\0'; | |
216 | ret = 0; | |
217 | goto end; | |
218 | } | |
219 | ||
220 | len = strlen(url); | |
221 | if (len >= PATH_MAX) { | |
222 | ret = -LTTNG_ERR_INVALID; | |
223 | goto error; | |
224 | } | |
225 | ||
226 | size = uri_parse_str_urls(url, NULL, &uris); | |
227 | if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) { | |
228 | ret = -LTTNG_ERR_INVALID; | |
229 | goto error; | |
230 | } | |
231 | ||
232 | /* Copy string plus the NULL terminated byte. */ | |
233 | lttng_ctl_copy_string(attr->input_url, uris[0].dst.path, | |
234 | sizeof(attr->input_url)); | |
235 | ||
236 | end: | |
237 | error: | |
238 | free(uris); | |
239 | return ret; | |
240 | } | |
241 | ||
242 | int lttng_load_session_attr_set_overwrite( | |
243 | struct lttng_load_session_attr *attr, int overwrite) | |
244 | { | |
245 | int ret = 0; | |
246 | ||
247 | if (!attr) { | |
248 | ret = -LTTNG_ERR_INVALID; | |
249 | goto end; | |
250 | } | |
251 | ||
252 | attr->overwrite = !!overwrite; | |
253 | end: | |
254 | return ret; | |
255 | } | |
256 | ||
a2a75fa4 JR |
257 | int lttng_load_session_attr_set_override_ctrl_url( |
258 | struct lttng_load_session_attr *attr, const char *url) | |
259 | { | |
260 | int ret = 0; | |
261 | ssize_t ret_size; | |
262 | struct lttng_uri *uri = NULL; | |
263 | char *url_str = NULL; | |
264 | char *raw_str = NULL; | |
265 | ||
266 | if (!attr) { | |
267 | ret = -LTTNG_ERR_INVALID; | |
268 | goto end; | |
269 | } | |
270 | ||
1b08cbce JR |
271 | if (!attr->override_attr) { |
272 | attr->override_attr = zmalloc( | |
273 | sizeof(struct config_load_session_override_attr)); | |
274 | if (!attr->override_attr) { | |
275 | ret = -LTTNG_ERR_NOMEM; | |
276 | goto end; | |
277 | } | |
278 | } | |
279 | ||
280 | if (attr->override_attr->path_url) { | |
a2a75fa4 | 281 | /* |
1b08cbce JR |
282 | * Setting a ctrl override after a path override makes no sense. |
283 | */ | |
a2a75fa4 JR |
284 | ret = -LTTNG_ERR_INVALID; |
285 | goto end; | |
286 | } | |
287 | ||
288 | /* | |
289 | * FIXME: uri_parse should be able to take as parameter the protocol | |
290 | * type to validate "url". For now only check the parsing goes through; | |
291 | * it will fail later on. | |
292 | */ | |
293 | ret_size = uri_parse(url, &uri); | |
294 | if (ret_size < 0) { | |
295 | ret = -LTTNG_ERR_INVALID; | |
296 | goto end; | |
297 | } | |
298 | ||
299 | if (uri[0].port == 0) { | |
300 | uri[0].port = DEFAULT_NETWORK_CONTROL_PORT; | |
301 | } | |
302 | ||
303 | url_str = zmalloc(PATH_MAX); | |
304 | if (!url_str) { | |
305 | /* FIXME: return valid error */ | |
306 | ret = -LTTNG_ERR_NOMEM; | |
307 | goto end; | |
308 | } | |
309 | ||
310 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
311 | if (ret < 0) { | |
312 | ret = -LTTNG_ERR_INVALID; | |
313 | goto end; | |
314 | } | |
315 | ret = 0; | |
316 | ||
317 | raw_str = lttng_strndup(url, PATH_MAX); | |
318 | if (!raw_str) { | |
319 | ret = -LTTNG_ERR_NOMEM; | |
320 | goto end; | |
321 | } | |
322 | ||
323 | /* Squash old value if any */ | |
1b08cbce | 324 | free(attr->override_attr->ctrl_url); |
a2a75fa4 JR |
325 | free(attr->raw_override_ctrl_url); |
326 | ||
327 | /* Populate the object */ | |
1b08cbce | 328 | attr->override_attr->ctrl_url = url_str; |
a2a75fa4 JR |
329 | attr->raw_override_ctrl_url = raw_str; |
330 | ||
331 | /* Ownership passed to attr. */ | |
332 | url_str = NULL; | |
333 | raw_str = NULL; | |
334 | ||
335 | end: | |
336 | free(raw_str); | |
337 | free(url_str); | |
338 | free(uri); | |
339 | return ret; | |
340 | } | |
341 | ||
342 | int lttng_load_session_attr_set_override_data_url( | |
343 | struct lttng_load_session_attr *attr, const char *url) | |
344 | { | |
345 | int ret = 0; | |
346 | ssize_t ret_size; | |
347 | struct lttng_uri *uri = NULL; | |
348 | char *url_str = NULL; | |
349 | char *raw_str = NULL; | |
350 | ||
351 | if (!attr) { | |
352 | ret = -LTTNG_ERR_INVALID; | |
353 | goto end; | |
354 | } | |
355 | ||
1b08cbce JR |
356 | if (!attr->override_attr) { |
357 | attr->override_attr = zmalloc( | |
358 | sizeof(struct config_load_session_override_attr)); | |
359 | if (!attr->override_attr) { | |
360 | ret = -LTTNG_ERR_NOMEM; | |
361 | goto end; | |
362 | } | |
363 | } | |
364 | ||
365 | if (attr->override_attr->path_url) { | |
366 | /* | |
367 | * Setting a data override after a path override makes no sense. | |
368 | */ | |
a2a75fa4 JR |
369 | ret = -LTTNG_ERR_INVALID; |
370 | goto end; | |
371 | } | |
372 | ||
373 | /* | |
374 | * FIXME: uri_parse should be able to take as parameter the protocol | |
375 | * type to validate "url". For now only check the parsing goes through; | |
376 | * it will fail later on. | |
377 | */ | |
378 | ret_size = uri_parse(url, &uri); | |
379 | if (ret_size < 0) { | |
380 | ret = -LTTNG_ERR_INVALID; | |
381 | goto end; | |
382 | } | |
383 | ||
384 | if (uri[0].port == 0) { | |
385 | uri[0].port = DEFAULT_NETWORK_DATA_PORT; | |
386 | } | |
387 | ||
388 | url_str = zmalloc(PATH_MAX); | |
389 | if (!url_str) { | |
390 | ret = -LTTNG_ERR_NOMEM; | |
391 | goto end; | |
392 | } | |
393 | ||
394 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
395 | if (ret < 0) { | |
396 | ret = -LTTNG_ERR_INVALID; | |
397 | goto end; | |
398 | } | |
399 | ret = 0; | |
400 | ||
401 | raw_str = lttng_strndup(url, PATH_MAX); | |
402 | if (!raw_str) { | |
403 | ret = -LTTNG_ERR_NOMEM; | |
404 | goto end; | |
405 | } | |
406 | ||
407 | /* Squash old value if any */ | |
1b08cbce | 408 | free(attr->override_attr->data_url); |
a2a75fa4 JR |
409 | free(attr->raw_override_data_url); |
410 | ||
411 | /* Populate the object */ | |
1b08cbce | 412 | attr->override_attr->data_url = url_str; |
a2a75fa4 JR |
413 | attr->raw_override_data_url = raw_str; |
414 | ||
415 | /* Ownership passed to attr. */ | |
416 | url_str = NULL; | |
417 | raw_str = NULL; | |
418 | end: | |
419 | free(raw_str); | |
420 | free(url_str); | |
421 | free(uri); | |
422 | return ret; | |
423 | } | |
424 | ||
425 | int lttng_load_session_attr_set_override_url( | |
426 | struct lttng_load_session_attr *attr, const char *url) | |
427 | { | |
428 | int ret = 0; | |
429 | ssize_t ret_size; | |
430 | struct lttng_uri *uri = NULL; | |
431 | char *raw_url_str = NULL; | |
432 | char *raw_path_str = NULL; | |
433 | char *path_str = NULL; | |
434 | char *raw_ctrl_str = NULL; | |
435 | char *ctrl_str = NULL; | |
436 | char *raw_data_str = NULL; | |
437 | char *data_str = NULL; | |
438 | char buffer[PATH_MAX]; | |
439 | ||
440 | if (!attr || !url || strlen(url) >= PATH_MAX) { | |
441 | ret = -LTTNG_ERR_INVALID; | |
442 | goto end; | |
443 | } | |
444 | ||
1b08cbce JR |
445 | if (!attr->override_attr) { |
446 | attr->override_attr = zmalloc( | |
447 | sizeof(struct config_load_session_override_attr)); | |
448 | if (!attr->override_attr) { | |
449 | ret = -LTTNG_ERR_NOMEM; | |
450 | goto end; | |
451 | } | |
452 | } | |
453 | ||
a2a75fa4 JR |
454 | /* |
455 | * FIXME: uri_parse should be able to take as parameter the protocol | |
456 | * type to validate "url". For now only check the parsing goes through; | |
457 | * it will fail later on. | |
458 | */ | |
459 | ret_size = uri_parse_str_urls(url, NULL, &uri); | |
460 | if (ret_size < 0 || ret_size > 2) { | |
461 | /* Unexpected URL format. */ | |
462 | ret = -LTTNG_ERR_INVALID; | |
463 | goto end; | |
464 | } | |
465 | ||
466 | raw_url_str = lttng_strndup(url, PATH_MAX); | |
467 | if (!raw_url_str) { | |
468 | ret = -LTTNG_ERR_NOMEM; | |
469 | goto end; | |
470 | } | |
471 | ||
472 | /* Get path | ctrl && data string URL. */ | |
473 | ret = uri_to_str_url(&uri[0], buffer, sizeof(buffer)); | |
474 | if (ret < 0 || ret >= PATH_MAX) { | |
475 | ret = -LTTNG_ERR_INVALID; | |
476 | goto end; | |
477 | } | |
478 | ret = 0; | |
479 | ||
480 | switch (uri[0].dtype) { | |
481 | case LTTNG_DST_PATH: | |
482 | raw_path_str = lttng_strndup(buffer, PATH_MAX); | |
483 | if (!raw_path_str) { | |
484 | ret = -LTTNG_ERR_NOMEM; | |
485 | goto end; | |
486 | } | |
487 | ||
488 | path_str = lttng_strndup(raw_path_str, PATH_MAX); | |
489 | if (!path_str) { | |
490 | ret = -LTTNG_ERR_NOMEM; | |
491 | goto end; | |
492 | } | |
493 | break; | |
494 | case LTTNG_DST_IPV4: | |
495 | case LTTNG_DST_IPV6: | |
496 | if (ret_size != 2) { | |
497 | ret = -LTTNG_ERR_INVALID; | |
498 | goto end; | |
499 | } | |
500 | ||
501 | raw_ctrl_str = lttng_strndup(buffer, PATH_MAX); | |
502 | if (!raw_ctrl_str) { | |
503 | ret = -LTTNG_ERR_NOMEM; | |
504 | goto end; | |
505 | } | |
506 | ||
507 | ctrl_str = lttng_strndup(raw_ctrl_str, PATH_MAX); | |
508 | if (!ctrl_str) { | |
509 | ret = -LTTNG_ERR_NOMEM; | |
510 | goto end; | |
511 | } | |
512 | ||
513 | /* Get the data uri. */ | |
514 | ret = uri_to_str_url(&uri[1], buffer, sizeof(buffer)); | |
515 | if (ret < 0) { | |
516 | ret = -LTTNG_ERR_INVALID; | |
517 | goto end; | |
518 | } | |
519 | ret = 0; | |
520 | ||
521 | raw_data_str = lttng_strndup(buffer, PATH_MAX); | |
522 | if (!raw_data_str) { | |
523 | ret = -LTTNG_ERR_NOMEM; | |
524 | goto end; | |
525 | } | |
526 | ||
527 | data_str = lttng_strndup(raw_data_str, PATH_MAX); | |
528 | if (!data_str) { | |
529 | ret = -LTTNG_ERR_NOMEM; | |
530 | goto end; | |
531 | } | |
532 | ||
533 | break; | |
534 | default: | |
535 | ret = -LTTNG_ERR_INVALID; | |
536 | goto end; | |
537 | } | |
538 | ||
539 | reset_load_session_attr_urls(attr); | |
540 | ||
1b08cbce JR |
541 | attr->override_attr->path_url = path_str; |
542 | attr->override_attr->ctrl_url = ctrl_str; | |
543 | attr->override_attr->data_url = data_str; | |
a2a75fa4 JR |
544 | |
545 | attr->raw_override_url = raw_url_str; | |
546 | attr->raw_override_path_url = raw_path_str; | |
547 | attr->raw_override_ctrl_url = raw_ctrl_str; | |
548 | attr->raw_override_data_url = raw_data_str; | |
549 | ||
550 | /* Pass data ownership to attr. */ | |
551 | raw_url_str = NULL; | |
552 | raw_path_str = NULL; | |
553 | path_str = NULL; | |
554 | raw_ctrl_str = NULL; | |
555 | ctrl_str = NULL; | |
556 | raw_data_str = NULL; | |
557 | data_str = NULL; | |
558 | ||
559 | end: | |
560 | free(raw_path_str); | |
561 | free(path_str); | |
562 | free(raw_ctrl_str); | |
563 | free(ctrl_str); | |
564 | free(raw_data_str); | |
565 | free(data_str); | |
566 | free(raw_url_str); | |
567 | free(uri); | |
568 | return ret; | |
569 | } | |
0d4bab5e | 570 | |
2aaf5fc7 JR |
571 | int lttng_load_session_attr_set_override_session_name( |
572 | struct lttng_load_session_attr *attr, const char *session_name) | |
573 | { | |
574 | int ret = 0; | |
575 | size_t len; | |
576 | ||
577 | if (!attr ||!session_name) { | |
578 | ret = -LTTNG_ERR_INVALID; | |
579 | goto end; | |
580 | } | |
581 | ||
582 | if (!attr->override_attr) { | |
583 | attr->override_attr = zmalloc( | |
584 | sizeof(struct config_load_session_override_attr)); | |
585 | if (!attr->override_attr) { | |
586 | ret = -LTTNG_ERR_NOMEM; | |
587 | goto end; | |
588 | } | |
589 | } | |
590 | ||
591 | len = strlen(session_name); | |
592 | if (len >= LTTNG_NAME_MAX) { | |
593 | ret = -LTTNG_ERR_INVALID; | |
594 | goto end; | |
595 | } | |
596 | ||
597 | attr->override_attr->session_name = lttng_strndup(session_name, | |
598 | len); | |
599 | if (!attr->override_attr->session_name) { | |
600 | ret = -LTTNG_ERR_NOMEM; | |
601 | goto end; | |
602 | } | |
603 | end: | |
604 | return ret; | |
605 | } | |
606 | ||
9245bd0e DG |
607 | int lttng_load_session(struct lttng_load_session_attr *attr) |
608 | { | |
609 | int ret; | |
18e29540 | 610 | const char *url, *session_name; |
9245bd0e DG |
611 | |
612 | if (!attr) { | |
613 | ret = -LTTNG_ERR_INVALID; | |
614 | goto end; | |
615 | } | |
616 | ||
2aaf5fc7 JR |
617 | ret = validate_attr(attr); |
618 | if (ret) { | |
619 | goto end; | |
620 | } | |
621 | ||
18e29540 JG |
622 | url = attr->input_url[0] != '\0' ? attr->input_url : NULL; |
623 | session_name = attr->session_name[0] != '\0' ? | |
624 | attr->session_name : NULL; | |
625 | ||
1b08cbce JR |
626 | ret = config_load_session(url, session_name, attr->overwrite, 0, |
627 | attr->override_attr); | |
9245bd0e DG |
628 | |
629 | end: | |
630 | return ret; | |
631 | } |