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. */ | |
e1b624d0 | 233 | ret = lttng_strncpy(attr->input_url, uris[0].dst.path, |
9245bd0e | 234 | sizeof(attr->input_url)); |
e1b624d0 JG |
235 | if (ret) { |
236 | ret = -LTTNG_ERR_INVALID; | |
237 | goto error; | |
238 | } | |
9245bd0e DG |
239 | |
240 | end: | |
241 | error: | |
242 | free(uris); | |
243 | return ret; | |
244 | } | |
245 | ||
246 | int lttng_load_session_attr_set_overwrite( | |
247 | struct lttng_load_session_attr *attr, int overwrite) | |
248 | { | |
249 | int ret = 0; | |
250 | ||
251 | if (!attr) { | |
252 | ret = -LTTNG_ERR_INVALID; | |
253 | goto end; | |
254 | } | |
255 | ||
256 | attr->overwrite = !!overwrite; | |
257 | end: | |
258 | return ret; | |
259 | } | |
260 | ||
a2a75fa4 JR |
261 | int lttng_load_session_attr_set_override_ctrl_url( |
262 | struct lttng_load_session_attr *attr, const char *url) | |
263 | { | |
264 | int ret = 0; | |
265 | ssize_t ret_size; | |
266 | struct lttng_uri *uri = NULL; | |
267 | char *url_str = NULL; | |
268 | char *raw_str = NULL; | |
269 | ||
270 | if (!attr) { | |
271 | ret = -LTTNG_ERR_INVALID; | |
272 | goto end; | |
273 | } | |
274 | ||
1b08cbce JR |
275 | if (!attr->override_attr) { |
276 | attr->override_attr = zmalloc( | |
277 | sizeof(struct config_load_session_override_attr)); | |
278 | if (!attr->override_attr) { | |
279 | ret = -LTTNG_ERR_NOMEM; | |
280 | goto end; | |
281 | } | |
282 | } | |
283 | ||
284 | if (attr->override_attr->path_url) { | |
a2a75fa4 | 285 | /* |
1b08cbce JR |
286 | * Setting a ctrl override after a path override makes no sense. |
287 | */ | |
a2a75fa4 JR |
288 | ret = -LTTNG_ERR_INVALID; |
289 | goto end; | |
290 | } | |
291 | ||
292 | /* | |
293 | * FIXME: uri_parse should be able to take as parameter the protocol | |
294 | * type to validate "url". For now only check the parsing goes through; | |
295 | * it will fail later on. | |
296 | */ | |
297 | ret_size = uri_parse(url, &uri); | |
298 | if (ret_size < 0) { | |
299 | ret = -LTTNG_ERR_INVALID; | |
300 | goto end; | |
301 | } | |
302 | ||
303 | if (uri[0].port == 0) { | |
304 | uri[0].port = DEFAULT_NETWORK_CONTROL_PORT; | |
305 | } | |
306 | ||
307 | url_str = zmalloc(PATH_MAX); | |
308 | if (!url_str) { | |
309 | /* FIXME: return valid error */ | |
310 | ret = -LTTNG_ERR_NOMEM; | |
311 | goto end; | |
312 | } | |
313 | ||
314 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
315 | if (ret < 0) { | |
316 | ret = -LTTNG_ERR_INVALID; | |
317 | goto end; | |
318 | } | |
319 | ret = 0; | |
320 | ||
321 | raw_str = lttng_strndup(url, PATH_MAX); | |
322 | if (!raw_str) { | |
323 | ret = -LTTNG_ERR_NOMEM; | |
324 | goto end; | |
325 | } | |
326 | ||
327 | /* Squash old value if any */ | |
1b08cbce | 328 | free(attr->override_attr->ctrl_url); |
a2a75fa4 JR |
329 | free(attr->raw_override_ctrl_url); |
330 | ||
331 | /* Populate the object */ | |
1b08cbce | 332 | attr->override_attr->ctrl_url = url_str; |
a2a75fa4 JR |
333 | attr->raw_override_ctrl_url = raw_str; |
334 | ||
335 | /* Ownership passed to attr. */ | |
336 | url_str = NULL; | |
337 | raw_str = NULL; | |
338 | ||
339 | end: | |
340 | free(raw_str); | |
341 | free(url_str); | |
342 | free(uri); | |
343 | return ret; | |
344 | } | |
345 | ||
346 | int lttng_load_session_attr_set_override_data_url( | |
347 | struct lttng_load_session_attr *attr, const char *url) | |
348 | { | |
349 | int ret = 0; | |
350 | ssize_t ret_size; | |
351 | struct lttng_uri *uri = NULL; | |
352 | char *url_str = NULL; | |
353 | char *raw_str = NULL; | |
354 | ||
355 | if (!attr) { | |
356 | ret = -LTTNG_ERR_INVALID; | |
357 | goto end; | |
358 | } | |
359 | ||
1b08cbce JR |
360 | if (!attr->override_attr) { |
361 | attr->override_attr = zmalloc( | |
362 | sizeof(struct config_load_session_override_attr)); | |
363 | if (!attr->override_attr) { | |
364 | ret = -LTTNG_ERR_NOMEM; | |
365 | goto end; | |
366 | } | |
367 | } | |
368 | ||
369 | if (attr->override_attr->path_url) { | |
370 | /* | |
371 | * Setting a data override after a path override makes no sense. | |
372 | */ | |
a2a75fa4 JR |
373 | ret = -LTTNG_ERR_INVALID; |
374 | goto end; | |
375 | } | |
376 | ||
377 | /* | |
378 | * FIXME: uri_parse should be able to take as parameter the protocol | |
379 | * type to validate "url". For now only check the parsing goes through; | |
380 | * it will fail later on. | |
381 | */ | |
382 | ret_size = uri_parse(url, &uri); | |
383 | if (ret_size < 0) { | |
384 | ret = -LTTNG_ERR_INVALID; | |
385 | goto end; | |
386 | } | |
387 | ||
388 | if (uri[0].port == 0) { | |
389 | uri[0].port = DEFAULT_NETWORK_DATA_PORT; | |
390 | } | |
391 | ||
392 | url_str = zmalloc(PATH_MAX); | |
393 | if (!url_str) { | |
394 | ret = -LTTNG_ERR_NOMEM; | |
395 | goto end; | |
396 | } | |
397 | ||
398 | ret = uri_to_str_url(&uri[0], url_str, PATH_MAX); | |
399 | if (ret < 0) { | |
400 | ret = -LTTNG_ERR_INVALID; | |
401 | goto end; | |
402 | } | |
403 | ret = 0; | |
404 | ||
405 | raw_str = lttng_strndup(url, PATH_MAX); | |
406 | if (!raw_str) { | |
407 | ret = -LTTNG_ERR_NOMEM; | |
408 | goto end; | |
409 | } | |
410 | ||
411 | /* Squash old value if any */ | |
1b08cbce | 412 | free(attr->override_attr->data_url); |
a2a75fa4 JR |
413 | free(attr->raw_override_data_url); |
414 | ||
415 | /* Populate the object */ | |
1b08cbce | 416 | attr->override_attr->data_url = url_str; |
a2a75fa4 JR |
417 | attr->raw_override_data_url = raw_str; |
418 | ||
419 | /* Ownership passed to attr. */ | |
420 | url_str = NULL; | |
421 | raw_str = NULL; | |
422 | end: | |
423 | free(raw_str); | |
424 | free(url_str); | |
425 | free(uri); | |
426 | return ret; | |
427 | } | |
428 | ||
429 | int lttng_load_session_attr_set_override_url( | |
430 | struct lttng_load_session_attr *attr, const char *url) | |
431 | { | |
432 | int ret = 0; | |
433 | ssize_t ret_size; | |
434 | struct lttng_uri *uri = NULL; | |
435 | char *raw_url_str = NULL; | |
436 | char *raw_path_str = NULL; | |
437 | char *path_str = NULL; | |
438 | char *raw_ctrl_str = NULL; | |
439 | char *ctrl_str = NULL; | |
440 | char *raw_data_str = NULL; | |
441 | char *data_str = NULL; | |
442 | char buffer[PATH_MAX]; | |
443 | ||
444 | if (!attr || !url || strlen(url) >= PATH_MAX) { | |
445 | ret = -LTTNG_ERR_INVALID; | |
446 | goto end; | |
447 | } | |
448 | ||
1b08cbce JR |
449 | if (!attr->override_attr) { |
450 | attr->override_attr = zmalloc( | |
451 | sizeof(struct config_load_session_override_attr)); | |
452 | if (!attr->override_attr) { | |
453 | ret = -LTTNG_ERR_NOMEM; | |
454 | goto end; | |
455 | } | |
456 | } | |
457 | ||
a2a75fa4 JR |
458 | /* |
459 | * FIXME: uri_parse should be able to take as parameter the protocol | |
460 | * type to validate "url". For now only check the parsing goes through; | |
461 | * it will fail later on. | |
462 | */ | |
463 | ret_size = uri_parse_str_urls(url, NULL, &uri); | |
464 | if (ret_size < 0 || ret_size > 2) { | |
465 | /* Unexpected URL format. */ | |
466 | ret = -LTTNG_ERR_INVALID; | |
467 | goto end; | |
468 | } | |
469 | ||
470 | raw_url_str = lttng_strndup(url, PATH_MAX); | |
471 | if (!raw_url_str) { | |
472 | ret = -LTTNG_ERR_NOMEM; | |
473 | goto end; | |
474 | } | |
475 | ||
476 | /* Get path | ctrl && data string URL. */ | |
477 | ret = uri_to_str_url(&uri[0], buffer, sizeof(buffer)); | |
478 | if (ret < 0 || ret >= PATH_MAX) { | |
479 | ret = -LTTNG_ERR_INVALID; | |
480 | goto end; | |
481 | } | |
482 | ret = 0; | |
483 | ||
484 | switch (uri[0].dtype) { | |
485 | case LTTNG_DST_PATH: | |
486 | raw_path_str = lttng_strndup(buffer, PATH_MAX); | |
487 | if (!raw_path_str) { | |
488 | ret = -LTTNG_ERR_NOMEM; | |
489 | goto end; | |
490 | } | |
491 | ||
492 | path_str = lttng_strndup(raw_path_str, PATH_MAX); | |
493 | if (!path_str) { | |
494 | ret = -LTTNG_ERR_NOMEM; | |
495 | goto end; | |
496 | } | |
497 | break; | |
498 | case LTTNG_DST_IPV4: | |
499 | case LTTNG_DST_IPV6: | |
500 | if (ret_size != 2) { | |
501 | ret = -LTTNG_ERR_INVALID; | |
502 | goto end; | |
503 | } | |
504 | ||
505 | raw_ctrl_str = lttng_strndup(buffer, PATH_MAX); | |
506 | if (!raw_ctrl_str) { | |
507 | ret = -LTTNG_ERR_NOMEM; | |
508 | goto end; | |
509 | } | |
510 | ||
511 | ctrl_str = lttng_strndup(raw_ctrl_str, PATH_MAX); | |
512 | if (!ctrl_str) { | |
513 | ret = -LTTNG_ERR_NOMEM; | |
514 | goto end; | |
515 | } | |
516 | ||
517 | /* Get the data uri. */ | |
518 | ret = uri_to_str_url(&uri[1], buffer, sizeof(buffer)); | |
519 | if (ret < 0) { | |
520 | ret = -LTTNG_ERR_INVALID; | |
521 | goto end; | |
522 | } | |
523 | ret = 0; | |
524 | ||
525 | raw_data_str = lttng_strndup(buffer, PATH_MAX); | |
526 | if (!raw_data_str) { | |
527 | ret = -LTTNG_ERR_NOMEM; | |
528 | goto end; | |
529 | } | |
530 | ||
531 | data_str = lttng_strndup(raw_data_str, PATH_MAX); | |
532 | if (!data_str) { | |
533 | ret = -LTTNG_ERR_NOMEM; | |
534 | goto end; | |
535 | } | |
536 | ||
537 | break; | |
538 | default: | |
539 | ret = -LTTNG_ERR_INVALID; | |
540 | goto end; | |
541 | } | |
542 | ||
543 | reset_load_session_attr_urls(attr); | |
544 | ||
1b08cbce JR |
545 | attr->override_attr->path_url = path_str; |
546 | attr->override_attr->ctrl_url = ctrl_str; | |
547 | attr->override_attr->data_url = data_str; | |
a2a75fa4 JR |
548 | |
549 | attr->raw_override_url = raw_url_str; | |
550 | attr->raw_override_path_url = raw_path_str; | |
551 | attr->raw_override_ctrl_url = raw_ctrl_str; | |
552 | attr->raw_override_data_url = raw_data_str; | |
553 | ||
554 | /* Pass data ownership to attr. */ | |
555 | raw_url_str = NULL; | |
556 | raw_path_str = NULL; | |
557 | path_str = NULL; | |
558 | raw_ctrl_str = NULL; | |
559 | ctrl_str = NULL; | |
560 | raw_data_str = NULL; | |
561 | data_str = NULL; | |
562 | ||
563 | end: | |
564 | free(raw_path_str); | |
565 | free(path_str); | |
566 | free(raw_ctrl_str); | |
567 | free(ctrl_str); | |
568 | free(raw_data_str); | |
569 | free(data_str); | |
570 | free(raw_url_str); | |
571 | free(uri); | |
572 | return ret; | |
573 | } | |
0d4bab5e | 574 | |
2aaf5fc7 JR |
575 | int lttng_load_session_attr_set_override_session_name( |
576 | struct lttng_load_session_attr *attr, const char *session_name) | |
577 | { | |
578 | int ret = 0; | |
579 | size_t len; | |
580 | ||
581 | if (!attr ||!session_name) { | |
582 | ret = -LTTNG_ERR_INVALID; | |
583 | goto end; | |
584 | } | |
585 | ||
586 | if (!attr->override_attr) { | |
587 | attr->override_attr = zmalloc( | |
588 | sizeof(struct config_load_session_override_attr)); | |
589 | if (!attr->override_attr) { | |
590 | ret = -LTTNG_ERR_NOMEM; | |
591 | goto end; | |
592 | } | |
593 | } | |
594 | ||
595 | len = strlen(session_name); | |
596 | if (len >= LTTNG_NAME_MAX) { | |
597 | ret = -LTTNG_ERR_INVALID; | |
598 | goto end; | |
599 | } | |
600 | ||
601 | attr->override_attr->session_name = lttng_strndup(session_name, | |
602 | len); | |
603 | if (!attr->override_attr->session_name) { | |
604 | ret = -LTTNG_ERR_NOMEM; | |
605 | goto end; | |
606 | } | |
607 | end: | |
608 | return ret; | |
609 | } | |
610 | ||
9245bd0e DG |
611 | int lttng_load_session(struct lttng_load_session_attr *attr) |
612 | { | |
613 | int ret; | |
18e29540 | 614 | const char *url, *session_name; |
9245bd0e DG |
615 | |
616 | if (!attr) { | |
617 | ret = -LTTNG_ERR_INVALID; | |
618 | goto end; | |
619 | } | |
620 | ||
2aaf5fc7 JR |
621 | ret = validate_attr(attr); |
622 | if (ret) { | |
623 | goto end; | |
624 | } | |
625 | ||
18e29540 JG |
626 | url = attr->input_url[0] != '\0' ? attr->input_url : NULL; |
627 | session_name = attr->session_name[0] != '\0' ? | |
628 | attr->session_name : NULL; | |
629 | ||
1b08cbce JR |
630 | ret = config_load_session(url, session_name, attr->overwrite, 0, |
631 | attr->override_attr); | |
9245bd0e DG |
632 | |
633 | end: | |
634 | return ret; | |
635 | } |