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
);
53 void lttng_load_session_attr_destroy(struct lttng_load_session_attr
*attr
)
56 reset_load_session_attr_urls(attr
);
57 free(attr
->override_attr
);
62 const char *lttng_load_session_attr_get_session_name(
63 struct lttng_load_session_attr
*attr
)
65 const char *ret
= NULL
;
67 if (attr
&& attr
->session_name
[0]) {
68 ret
= attr
->session_name
;
74 const char *lttng_load_session_attr_get_input_url(
75 struct lttng_load_session_attr
*attr
)
77 const char *ret
= NULL
;
79 if (attr
&& attr
->input_url
[0]) {
80 ret
= attr
->input_url
;
86 int lttng_load_session_attr_get_overwrite(
87 struct lttng_load_session_attr
*attr
)
89 return attr
? attr
->overwrite
: -LTTNG_ERR_INVALID
;
92 const char *lttng_load_session_attr_get_override_ctrl_url(
93 struct lttng_load_session_attr
*attr
)
95 const char *ret
= NULL
;
97 if (!attr
|| !attr
->override_attr
) {
101 ret
= attr
->raw_override_ctrl_url
;
106 const char *lttng_load_session_attr_get_override_data_url(
107 struct lttng_load_session_attr
*attr
)
109 const char *ret
= NULL
;
111 if (!attr
|| !attr
->override_attr
) {
115 ret
= attr
->raw_override_data_url
;
120 const char *lttng_load_session_attr_get_override_url(
121 struct lttng_load_session_attr
*attr
)
123 const char *ret
= NULL
;
125 if (!attr
|| !attr
->override_attr
) {
129 if ((attr
->override_attr
->path_url
||
130 (attr
->override_attr
->ctrl_url
&&
131 attr
->override_attr
->data_url
))) {
132 ret
= attr
->raw_override_url
;
138 int lttng_load_session_attr_set_session_name(
139 struct lttng_load_session_attr
*attr
, const char *session_name
)
144 ret
= -LTTNG_ERR_INVALID
;
151 len
= strlen(session_name
);
152 if (len
>= LTTNG_NAME_MAX
) {
153 ret
= -LTTNG_ERR_INVALID
;
157 strncpy(attr
->session_name
, session_name
, len
);
159 attr
->session_name
[0] = '\0';
165 int lttng_load_session_attr_set_input_url(
166 struct lttng_load_session_attr
*attr
, const char *url
)
171 struct lttng_uri
*uris
= NULL
;
174 ret
= -LTTNG_ERR_INVALID
;
179 attr
->input_url
[0] = '\0';
185 if (len
>= PATH_MAX
) {
186 ret
= -LTTNG_ERR_INVALID
;
190 size
= uri_parse_str_urls(url
, NULL
, &uris
);
191 if (size
<= 0 || uris
[0].dtype
!= LTTNG_DST_PATH
) {
192 ret
= -LTTNG_ERR_INVALID
;
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
));
206 int lttng_load_session_attr_set_overwrite(
207 struct lttng_load_session_attr
*attr
, int overwrite
)
212 ret
= -LTTNG_ERR_INVALID
;
216 attr
->overwrite
= !!overwrite
;
221 int lttng_load_session_attr_set_override_ctrl_url(
222 struct lttng_load_session_attr
*attr
, const char *url
)
226 struct lttng_uri
*uri
= NULL
;
227 char *url_str
= NULL
;
228 char *raw_str
= NULL
;
231 ret
= -LTTNG_ERR_INVALID
;
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
;
244 if (attr
->override_attr
->path_url
) {
246 * Setting a ctrl override after a path override makes no sense.
248 ret
= -LTTNG_ERR_INVALID
;
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.
257 ret_size
= uri_parse(url
, &uri
);
259 ret
= -LTTNG_ERR_INVALID
;
263 if (uri
[0].port
== 0) {
264 uri
[0].port
= DEFAULT_NETWORK_CONTROL_PORT
;
267 url_str
= zmalloc(PATH_MAX
);
269 /* FIXME: return valid error */
270 ret
= -LTTNG_ERR_NOMEM
;
274 ret
= uri_to_str_url(&uri
[0], url_str
, PATH_MAX
);
276 ret
= -LTTNG_ERR_INVALID
;
281 raw_str
= lttng_strndup(url
, PATH_MAX
);
283 ret
= -LTTNG_ERR_NOMEM
;
287 /* Squash old value if any */
288 free(attr
->override_attr
->ctrl_url
);
289 free(attr
->raw_override_ctrl_url
);
291 /* Populate the object */
292 attr
->override_attr
->ctrl_url
= url_str
;
293 attr
->raw_override_ctrl_url
= raw_str
;
295 /* Ownership passed to attr. */
306 int lttng_load_session_attr_set_override_data_url(
307 struct lttng_load_session_attr
*attr
, const char *url
)
311 struct lttng_uri
*uri
= NULL
;
312 char *url_str
= NULL
;
313 char *raw_str
= NULL
;
316 ret
= -LTTNG_ERR_INVALID
;
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
;
329 if (attr
->override_attr
->path_url
) {
331 * Setting a data override after a path override makes no sense.
333 ret
= -LTTNG_ERR_INVALID
;
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.
342 ret_size
= uri_parse(url
, &uri
);
344 ret
= -LTTNG_ERR_INVALID
;
348 if (uri
[0].port
== 0) {
349 uri
[0].port
= DEFAULT_NETWORK_DATA_PORT
;
352 url_str
= zmalloc(PATH_MAX
);
354 ret
= -LTTNG_ERR_NOMEM
;
358 ret
= uri_to_str_url(&uri
[0], url_str
, PATH_MAX
);
360 ret
= -LTTNG_ERR_INVALID
;
365 raw_str
= lttng_strndup(url
, PATH_MAX
);
367 ret
= -LTTNG_ERR_NOMEM
;
371 /* Squash old value if any */
372 free(attr
->override_attr
->data_url
);
373 free(attr
->raw_override_data_url
);
375 /* Populate the object */
376 attr
->override_attr
->data_url
= url_str
;
377 attr
->raw_override_data_url
= raw_str
;
379 /* Ownership passed to attr. */
389 int lttng_load_session_attr_set_override_url(
390 struct lttng_load_session_attr
*attr
, const char *url
)
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
];
404 if (!attr
|| !url
|| strlen(url
) >= PATH_MAX
) {
405 ret
= -LTTNG_ERR_INVALID
;
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
;
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.
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
;
430 raw_url_str
= lttng_strndup(url
, PATH_MAX
);
432 ret
= -LTTNG_ERR_NOMEM
;
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
;
444 switch (uri
[0].dtype
) {
446 raw_path_str
= lttng_strndup(buffer
, PATH_MAX
);
448 ret
= -LTTNG_ERR_NOMEM
;
452 path_str
= lttng_strndup(raw_path_str
, PATH_MAX
);
454 ret
= -LTTNG_ERR_NOMEM
;
461 ret
= -LTTNG_ERR_INVALID
;
465 raw_ctrl_str
= lttng_strndup(buffer
, PATH_MAX
);
467 ret
= -LTTNG_ERR_NOMEM
;
471 ctrl_str
= lttng_strndup(raw_ctrl_str
, PATH_MAX
);
473 ret
= -LTTNG_ERR_NOMEM
;
477 /* Get the data uri. */
478 ret
= uri_to_str_url(&uri
[1], buffer
, sizeof(buffer
));
480 ret
= -LTTNG_ERR_INVALID
;
485 raw_data_str
= lttng_strndup(buffer
, PATH_MAX
);
487 ret
= -LTTNG_ERR_NOMEM
;
491 data_str
= lttng_strndup(raw_data_str
, PATH_MAX
);
493 ret
= -LTTNG_ERR_NOMEM
;
499 ret
= -LTTNG_ERR_INVALID
;
503 reset_load_session_attr_urls(attr
);
505 attr
->override_attr
->path_url
= path_str
;
506 attr
->override_attr
->ctrl_url
= ctrl_str
;
507 attr
->override_attr
->data_url
= data_str
;
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
;
514 /* Pass data ownership to attr. */
535 int lttng_load_session(struct lttng_load_session_attr
*attr
)
538 const char *url
, *session_name
;
541 ret
= -LTTNG_ERR_INVALID
;
545 url
= attr
->input_url
[0] != '\0' ? attr
->input_url
: NULL
;
546 session_name
= attr
->session_name
[0] != '\0' ?
547 attr
->session_name
: NULL
;
549 ret
= config_load_session(url
, session_name
, attr
->overwrite
, 0,
550 attr
->override_attr
);