2 * Copyright (C) 2014 - David Goulet <dgoulet@efficios.com>
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.
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
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
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>
27 #include <common/config/session-config.h>
28 #include <common/uri.h>
29 #include <common/macros.h>
30 #include <common/compat/string.h>
32 #include "lttng-ctl-helper.h"
34 struct lttng_load_session_attr
*lttng_load_session_attr_create(void)
36 return zmalloc(sizeof(struct lttng_load_session_attr
));
40 void reset_load_session_attr_urls(struct lttng_load_session_attr
*attr
)
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
);
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 free(attr
->override_attr
->session_name
);
54 void lttng_load_session_attr_destroy(struct lttng_load_session_attr
*attr
)
57 reset_load_session_attr_urls(attr
);
58 free(attr
->override_attr
);
63 static int validate_attr(const struct lttng_load_session_attr
*attr
)
68 ret
= -LTTNG_ERR_INVALID
;
72 if (!attr
->override_attr
) {
77 * Refuse override name if the objective is to load multiple session
78 * since this operation is ambiguous while loading multiple session.
80 if (attr
->override_attr
->session_name
81 && attr
->session_name
[0] == '\0') {
82 ret
= -LTTNG_ERR_INVALID
;
89 const char *lttng_load_session_attr_get_session_name(
90 struct lttng_load_session_attr
*attr
)
92 const char *ret
= NULL
;
94 if (attr
&& attr
->session_name
[0]) {
95 ret
= attr
->session_name
;
101 const char *lttng_load_session_attr_get_input_url(
102 struct lttng_load_session_attr
*attr
)
104 const char *ret
= NULL
;
106 if (attr
&& attr
->input_url
[0]) {
107 ret
= attr
->input_url
;
113 int lttng_load_session_attr_get_overwrite(
114 struct lttng_load_session_attr
*attr
)
116 return attr
? attr
->overwrite
: -LTTNG_ERR_INVALID
;
119 const char *lttng_load_session_attr_get_override_ctrl_url(
120 struct lttng_load_session_attr
*attr
)
122 const char *ret
= NULL
;
124 if (!attr
|| !attr
->override_attr
) {
128 ret
= attr
->raw_override_ctrl_url
;
133 const char *lttng_load_session_attr_get_override_data_url(
134 struct lttng_load_session_attr
*attr
)
136 const char *ret
= NULL
;
138 if (!attr
|| !attr
->override_attr
) {
142 ret
= attr
->raw_override_data_url
;
147 const char *lttng_load_session_attr_get_override_url(
148 struct lttng_load_session_attr
*attr
)
150 const char *ret
= NULL
;
152 if (!attr
|| !attr
->override_attr
) {
156 if ((attr
->override_attr
->path_url
||
157 (attr
->override_attr
->ctrl_url
&&
158 attr
->override_attr
->data_url
))) {
159 ret
= attr
->raw_override_url
;
165 const char *lttng_load_session_attr_get_override_session_name(
166 struct lttng_load_session_attr
*attr
)
168 const char *ret
= NULL
;
170 if (!attr
|| !attr
->override_attr
) {
174 ret
= attr
->override_attr
->session_name
;
179 int lttng_load_session_attr_set_session_name(
180 struct lttng_load_session_attr
*attr
, const char *session_name
)
185 ret
= -LTTNG_ERR_INVALID
;
192 len
= strlen(session_name
);
193 if (len
>= LTTNG_NAME_MAX
) {
194 ret
= -LTTNG_ERR_INVALID
;
198 ret
= lttng_strncpy(attr
->session_name
, session_name
,
199 sizeof(attr
->session_name
));
201 ret
= -LTTNG_ERR_INVALID
;
205 attr
->session_name
[0] = '\0';
211 int lttng_load_session_attr_set_input_url(
212 struct lttng_load_session_attr
*attr
, const char *url
)
217 struct lttng_uri
*uris
= NULL
;
220 ret
= -LTTNG_ERR_INVALID
;
225 attr
->input_url
[0] = '\0';
231 if (len
>= PATH_MAX
) {
232 ret
= -LTTNG_ERR_INVALID
;
236 size
= uri_parse_str_urls(url
, NULL
, &uris
);
237 if (size
<= 0 || uris
[0].dtype
!= LTTNG_DST_PATH
) {
238 ret
= -LTTNG_ERR_INVALID
;
242 /* Copy string plus the NULL terminated byte. */
243 lttng_ctl_copy_string(attr
->input_url
, uris
[0].dst
.path
,
244 sizeof(attr
->input_url
));
252 int lttng_load_session_attr_set_overwrite(
253 struct lttng_load_session_attr
*attr
, int overwrite
)
258 ret
= -LTTNG_ERR_INVALID
;
262 attr
->overwrite
= !!overwrite
;
267 int lttng_load_session_attr_set_override_ctrl_url(
268 struct lttng_load_session_attr
*attr
, const char *url
)
272 struct lttng_uri
*uri
= NULL
;
273 char *url_str
= NULL
;
274 char *raw_str
= NULL
;
277 ret
= -LTTNG_ERR_INVALID
;
281 if (!attr
->override_attr
) {
282 attr
->override_attr
= zmalloc(
283 sizeof(struct config_load_session_override_attr
));
284 if (!attr
->override_attr
) {
285 ret
= -LTTNG_ERR_NOMEM
;
290 if (attr
->override_attr
->path_url
) {
292 * Setting a ctrl override after a path override makes no sense.
294 ret
= -LTTNG_ERR_INVALID
;
299 * FIXME: uri_parse should be able to take as parameter the protocol
300 * type to validate "url". For now only check the parsing goes through;
301 * it will fail later on.
303 ret_size
= uri_parse(url
, &uri
);
305 ret
= -LTTNG_ERR_INVALID
;
309 if (uri
[0].port
== 0) {
310 uri
[0].port
= DEFAULT_NETWORK_CONTROL_PORT
;
313 url_str
= zmalloc(PATH_MAX
);
315 /* FIXME: return valid error */
316 ret
= -LTTNG_ERR_NOMEM
;
320 ret
= uri_to_str_url(&uri
[0], url_str
, PATH_MAX
);
322 ret
= -LTTNG_ERR_INVALID
;
327 raw_str
= lttng_strndup(url
, PATH_MAX
);
329 ret
= -LTTNG_ERR_NOMEM
;
333 /* Squash old value if any */
334 free(attr
->override_attr
->ctrl_url
);
335 free(attr
->raw_override_ctrl_url
);
337 /* Populate the object */
338 attr
->override_attr
->ctrl_url
= url_str
;
339 attr
->raw_override_ctrl_url
= raw_str
;
341 /* Ownership passed to attr. */
352 int lttng_load_session_attr_set_override_data_url(
353 struct lttng_load_session_attr
*attr
, const char *url
)
357 struct lttng_uri
*uri
= NULL
;
358 char *url_str
= NULL
;
359 char *raw_str
= NULL
;
362 ret
= -LTTNG_ERR_INVALID
;
366 if (!attr
->override_attr
) {
367 attr
->override_attr
= zmalloc(
368 sizeof(struct config_load_session_override_attr
));
369 if (!attr
->override_attr
) {
370 ret
= -LTTNG_ERR_NOMEM
;
375 if (attr
->override_attr
->path_url
) {
377 * Setting a data override after a path override makes no sense.
379 ret
= -LTTNG_ERR_INVALID
;
384 * FIXME: uri_parse should be able to take as parameter the protocol
385 * type to validate "url". For now only check the parsing goes through;
386 * it will fail later on.
388 ret_size
= uri_parse(url
, &uri
);
390 ret
= -LTTNG_ERR_INVALID
;
394 if (uri
[0].port
== 0) {
395 uri
[0].port
= DEFAULT_NETWORK_DATA_PORT
;
398 url_str
= zmalloc(PATH_MAX
);
400 ret
= -LTTNG_ERR_NOMEM
;
404 ret
= uri_to_str_url(&uri
[0], url_str
, PATH_MAX
);
406 ret
= -LTTNG_ERR_INVALID
;
411 raw_str
= lttng_strndup(url
, PATH_MAX
);
413 ret
= -LTTNG_ERR_NOMEM
;
417 /* Squash old value if any */
418 free(attr
->override_attr
->data_url
);
419 free(attr
->raw_override_data_url
);
421 /* Populate the object */
422 attr
->override_attr
->data_url
= url_str
;
423 attr
->raw_override_data_url
= raw_str
;
425 /* Ownership passed to attr. */
435 int lttng_load_session_attr_set_override_url(
436 struct lttng_load_session_attr
*attr
, const char *url
)
440 struct lttng_uri
*uri
= NULL
;
441 char *raw_url_str
= NULL
;
442 char *raw_path_str
= NULL
;
443 char *path_str
= NULL
;
444 char *raw_ctrl_str
= NULL
;
445 char *ctrl_str
= NULL
;
446 char *raw_data_str
= NULL
;
447 char *data_str
= NULL
;
448 char buffer
[PATH_MAX
];
450 if (!attr
|| !url
|| strlen(url
) >= PATH_MAX
) {
451 ret
= -LTTNG_ERR_INVALID
;
455 if (!attr
->override_attr
) {
456 attr
->override_attr
= zmalloc(
457 sizeof(struct config_load_session_override_attr
));
458 if (!attr
->override_attr
) {
459 ret
= -LTTNG_ERR_NOMEM
;
465 * FIXME: uri_parse should be able to take as parameter the protocol
466 * type to validate "url". For now only check the parsing goes through;
467 * it will fail later on.
469 ret_size
= uri_parse_str_urls(url
, NULL
, &uri
);
470 if (ret_size
< 0 || ret_size
> 2) {
471 /* Unexpected URL format. */
472 ret
= -LTTNG_ERR_INVALID
;
476 raw_url_str
= lttng_strndup(url
, PATH_MAX
);
478 ret
= -LTTNG_ERR_NOMEM
;
482 /* Get path | ctrl && data string URL. */
483 ret
= uri_to_str_url(&uri
[0], buffer
, sizeof(buffer
));
484 if (ret
< 0 || ret
>= PATH_MAX
) {
485 ret
= -LTTNG_ERR_INVALID
;
490 switch (uri
[0].dtype
) {
492 raw_path_str
= lttng_strndup(buffer
, PATH_MAX
);
494 ret
= -LTTNG_ERR_NOMEM
;
498 path_str
= lttng_strndup(raw_path_str
, PATH_MAX
);
500 ret
= -LTTNG_ERR_NOMEM
;
507 ret
= -LTTNG_ERR_INVALID
;
511 raw_ctrl_str
= lttng_strndup(buffer
, PATH_MAX
);
513 ret
= -LTTNG_ERR_NOMEM
;
517 ctrl_str
= lttng_strndup(raw_ctrl_str
, PATH_MAX
);
519 ret
= -LTTNG_ERR_NOMEM
;
523 /* Get the data uri. */
524 ret
= uri_to_str_url(&uri
[1], buffer
, sizeof(buffer
));
526 ret
= -LTTNG_ERR_INVALID
;
531 raw_data_str
= lttng_strndup(buffer
, PATH_MAX
);
533 ret
= -LTTNG_ERR_NOMEM
;
537 data_str
= lttng_strndup(raw_data_str
, PATH_MAX
);
539 ret
= -LTTNG_ERR_NOMEM
;
545 ret
= -LTTNG_ERR_INVALID
;
549 reset_load_session_attr_urls(attr
);
551 attr
->override_attr
->path_url
= path_str
;
552 attr
->override_attr
->ctrl_url
= ctrl_str
;
553 attr
->override_attr
->data_url
= data_str
;
555 attr
->raw_override_url
= raw_url_str
;
556 attr
->raw_override_path_url
= raw_path_str
;
557 attr
->raw_override_ctrl_url
= raw_ctrl_str
;
558 attr
->raw_override_data_url
= raw_data_str
;
560 /* Pass data ownership to attr. */
581 int lttng_load_session_attr_set_override_session_name(
582 struct lttng_load_session_attr
*attr
, const char *session_name
)
587 if (!attr
||!session_name
) {
588 ret
= -LTTNG_ERR_INVALID
;
592 if (!attr
->override_attr
) {
593 attr
->override_attr
= zmalloc(
594 sizeof(struct config_load_session_override_attr
));
595 if (!attr
->override_attr
) {
596 ret
= -LTTNG_ERR_NOMEM
;
601 len
= strlen(session_name
);
602 if (len
>= LTTNG_NAME_MAX
) {
603 ret
= -LTTNG_ERR_INVALID
;
607 attr
->override_attr
->session_name
= lttng_strndup(session_name
,
609 if (!attr
->override_attr
->session_name
) {
610 ret
= -LTTNG_ERR_NOMEM
;
617 int lttng_load_session(struct lttng_load_session_attr
*attr
)
620 const char *url
, *session_name
;
623 ret
= -LTTNG_ERR_INVALID
;
627 ret
= validate_attr(attr
);
632 url
= attr
->input_url
[0] != '\0' ? attr
->input_url
: NULL
;
633 session_name
= attr
->session_name
[0] != '\0' ?
634 attr
->session_name
: NULL
;
636 ret
= config_load_session(url
, session_name
, attr
->overwrite
, 0,
637 attr
->override_attr
);