2 * Copyright (C) 2014 David Goulet <dgoulet@efficios.com>
4 * SPDX-License-Identifier: LGPL-2.1-only
12 #include <lttng/lttng-error.h>
13 #include <lttng/load.h>
14 #include <lttng/load-internal.hpp>
15 #include <common/sessiond-comm/sessiond-comm.hpp>
16 #include <common/config/session-config.hpp>
17 #include <common/uri.hpp>
18 #include <common/macros.hpp>
19 #include <common/compat/string.hpp>
21 #include "lttng-ctl-helper.hpp"
23 struct lttng_load_session_attr
*lttng_load_session_attr_create(void)
25 return zmalloc
<lttng_load_session_attr
>();
29 void reset_load_session_attr_urls(struct lttng_load_session_attr
*attr
)
31 free(attr
->raw_override_url
);
32 free(attr
->raw_override_path_url
);
33 free(attr
->raw_override_ctrl_url
);
34 free(attr
->raw_override_data_url
);
35 if (attr
->override_attr
) {
36 free(attr
->override_attr
->path_url
);
37 free(attr
->override_attr
->ctrl_url
);
38 free(attr
->override_attr
->data_url
);
39 free(attr
->override_attr
->session_name
);
43 void lttng_load_session_attr_destroy(struct lttng_load_session_attr
*attr
)
46 reset_load_session_attr_urls(attr
);
47 free(attr
->override_attr
);
52 static int validate_attr(const struct lttng_load_session_attr
*attr
)
57 ret
= -LTTNG_ERR_INVALID
;
61 if (!attr
->override_attr
) {
66 * Refuse override name if the objective is to load multiple session
67 * since this operation is ambiguous while loading multiple session.
69 if (attr
->override_attr
->session_name
70 && attr
->session_name
[0] == '\0') {
71 ret
= -LTTNG_ERR_INVALID
;
78 const char *lttng_load_session_attr_get_session_name(
79 struct lttng_load_session_attr
*attr
)
81 const char *ret
= NULL
;
83 if (attr
&& attr
->session_name
[0]) {
84 ret
= attr
->session_name
;
90 const char *lttng_load_session_attr_get_input_url(
91 struct lttng_load_session_attr
*attr
)
93 const char *ret
= NULL
;
95 if (attr
&& attr
->input_url
[0]) {
96 ret
= attr
->input_url
;
102 int lttng_load_session_attr_get_overwrite(
103 struct lttng_load_session_attr
*attr
)
105 return attr
? attr
->overwrite
: -LTTNG_ERR_INVALID
;
108 const char *lttng_load_session_attr_get_override_ctrl_url(
109 struct lttng_load_session_attr
*attr
)
111 const char *ret
= NULL
;
113 if (!attr
|| !attr
->override_attr
) {
117 ret
= attr
->raw_override_ctrl_url
;
122 const char *lttng_load_session_attr_get_override_data_url(
123 struct lttng_load_session_attr
*attr
)
125 const char *ret
= NULL
;
127 if (!attr
|| !attr
->override_attr
) {
131 ret
= attr
->raw_override_data_url
;
136 const char *lttng_load_session_attr_get_override_url(
137 struct lttng_load_session_attr
*attr
)
139 const char *ret
= NULL
;
141 if (!attr
|| !attr
->override_attr
) {
145 if ((attr
->override_attr
->path_url
||
146 (attr
->override_attr
->ctrl_url
&&
147 attr
->override_attr
->data_url
))) {
148 ret
= attr
->raw_override_url
;
154 const char *lttng_load_session_attr_get_override_session_name(
155 struct lttng_load_session_attr
*attr
)
157 const char *ret
= NULL
;
159 if (!attr
|| !attr
->override_attr
) {
163 ret
= attr
->override_attr
->session_name
;
168 int lttng_load_session_attr_set_session_name(
169 struct lttng_load_session_attr
*attr
, const char *session_name
)
174 ret
= -LTTNG_ERR_INVALID
;
181 len
= strlen(session_name
);
182 if (len
>= LTTNG_NAME_MAX
) {
183 ret
= -LTTNG_ERR_INVALID
;
187 ret
= lttng_strncpy(attr
->session_name
, session_name
,
188 sizeof(attr
->session_name
));
190 ret
= -LTTNG_ERR_INVALID
;
194 attr
->session_name
[0] = '\0';
200 int lttng_load_session_attr_set_input_url(
201 struct lttng_load_session_attr
*attr
, const char *url
)
206 struct lttng_uri
*uris
= NULL
;
209 ret
= -LTTNG_ERR_INVALID
;
214 attr
->input_url
[0] = '\0';
220 if (len
>= PATH_MAX
) {
221 ret
= -LTTNG_ERR_INVALID
;
225 size
= uri_parse_str_urls(url
, NULL
, &uris
);
226 if (size
<= 0 || uris
[0].dtype
!= LTTNG_DST_PATH
) {
227 ret
= -LTTNG_ERR_INVALID
;
231 /* Copy string plus the NULL terminated byte. */
232 ret
= lttng_strncpy(attr
->input_url
, uris
[0].dst
.path
,
233 sizeof(attr
->input_url
));
235 ret
= -LTTNG_ERR_INVALID
;
245 int lttng_load_session_attr_set_overwrite(
246 struct lttng_load_session_attr
*attr
, int overwrite
)
251 ret
= -LTTNG_ERR_INVALID
;
255 attr
->overwrite
= !!overwrite
;
260 int lttng_load_session_attr_set_override_ctrl_url(
261 struct lttng_load_session_attr
*attr
, const char *url
)
265 struct lttng_uri
*uri
= NULL
;
266 char *url_str
= NULL
;
267 char *raw_str
= NULL
;
270 ret
= -LTTNG_ERR_INVALID
;
274 if (!attr
->override_attr
) {
275 attr
->override_attr
= zmalloc
<config_load_session_override_attr
>();
276 if (!attr
->override_attr
) {
277 ret
= -LTTNG_ERR_NOMEM
;
282 if (attr
->override_attr
->path_url
) {
284 * Setting a ctrl override after a path override makes no sense.
286 ret
= -LTTNG_ERR_INVALID
;
291 * FIXME: uri_parse should be able to take as parameter the protocol
292 * type to validate "url". For now only check the parsing goes through;
293 * it will fail later on.
295 ret_size
= uri_parse(url
, &uri
);
297 ret
= -LTTNG_ERR_INVALID
;
301 if (uri
[0].port
== 0) {
302 uri
[0].port
= DEFAULT_NETWORK_CONTROL_PORT
;
305 url_str
= calloc
<char>(PATH_MAX
);
307 /* FIXME: return valid error */
308 ret
= -LTTNG_ERR_NOMEM
;
312 ret
= uri_to_str_url(&uri
[0], url_str
, PATH_MAX
);
314 ret
= -LTTNG_ERR_INVALID
;
319 raw_str
= lttng_strndup(url
, PATH_MAX
);
321 ret
= -LTTNG_ERR_NOMEM
;
325 /* Squash old value if any */
326 free(attr
->override_attr
->ctrl_url
);
327 free(attr
->raw_override_ctrl_url
);
329 /* Populate the object */
330 attr
->override_attr
->ctrl_url
= url_str
;
331 attr
->raw_override_ctrl_url
= raw_str
;
333 /* Ownership passed to attr. */
344 int lttng_load_session_attr_set_override_data_url(
345 struct lttng_load_session_attr
*attr
, const char *url
)
349 struct lttng_uri
*uri
= NULL
;
350 char *url_str
= NULL
;
351 char *raw_str
= NULL
;
354 ret
= -LTTNG_ERR_INVALID
;
358 if (!attr
->override_attr
) {
359 attr
->override_attr
= zmalloc
<config_load_session_override_attr
>();
360 if (!attr
->override_attr
) {
361 ret
= -LTTNG_ERR_NOMEM
;
366 if (attr
->override_attr
->path_url
) {
368 * Setting a data override after a path override makes no sense.
370 ret
= -LTTNG_ERR_INVALID
;
375 * FIXME: uri_parse should be able to take as parameter the protocol
376 * type to validate "url". For now only check the parsing goes through;
377 * it will fail later on.
379 ret_size
= uri_parse(url
, &uri
);
381 ret
= -LTTNG_ERR_INVALID
;
385 if (uri
[0].port
== 0) {
386 uri
[0].port
= DEFAULT_NETWORK_DATA_PORT
;
389 url_str
= calloc
<char>(PATH_MAX
);
391 ret
= -LTTNG_ERR_NOMEM
;
395 ret
= uri_to_str_url(&uri
[0], url_str
, PATH_MAX
);
397 ret
= -LTTNG_ERR_INVALID
;
402 raw_str
= lttng_strndup(url
, PATH_MAX
);
404 ret
= -LTTNG_ERR_NOMEM
;
408 /* Squash old value if any */
409 free(attr
->override_attr
->data_url
);
410 free(attr
->raw_override_data_url
);
412 /* Populate the object */
413 attr
->override_attr
->data_url
= url_str
;
414 attr
->raw_override_data_url
= raw_str
;
416 /* Ownership passed to attr. */
426 int lttng_load_session_attr_set_override_url(
427 struct lttng_load_session_attr
*attr
, const char *url
)
431 struct lttng_uri
*uri
= NULL
;
432 char *raw_url_str
= NULL
;
433 char *raw_path_str
= NULL
;
434 char *path_str
= NULL
;
435 char *raw_ctrl_str
= NULL
;
436 char *ctrl_str
= NULL
;
437 char *raw_data_str
= NULL
;
438 char *data_str
= NULL
;
439 char buffer
[PATH_MAX
];
441 if (!attr
|| !url
|| strlen(url
) >= PATH_MAX
) {
442 ret
= -LTTNG_ERR_INVALID
;
446 if (!attr
->override_attr
) {
447 attr
->override_attr
= zmalloc
<config_load_session_override_attr
>();
448 if (!attr
->override_attr
) {
449 ret
= -LTTNG_ERR_NOMEM
;
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.
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
;
466 raw_url_str
= lttng_strndup(url
, PATH_MAX
);
468 ret
= -LTTNG_ERR_NOMEM
;
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
;
480 switch (uri
[0].dtype
) {
482 raw_path_str
= lttng_strndup(buffer
, PATH_MAX
);
484 ret
= -LTTNG_ERR_NOMEM
;
488 path_str
= lttng_strndup(uri
[0].dst
.path
, PATH_MAX
);
490 ret
= -LTTNG_ERR_NOMEM
;
497 ret
= -LTTNG_ERR_INVALID
;
501 raw_ctrl_str
= lttng_strndup(buffer
, PATH_MAX
);
503 ret
= -LTTNG_ERR_NOMEM
;
507 ctrl_str
= lttng_strndup(raw_ctrl_str
, PATH_MAX
);
509 ret
= -LTTNG_ERR_NOMEM
;
513 /* Get the data uri. */
514 ret
= uri_to_str_url(&uri
[1], buffer
, sizeof(buffer
));
516 ret
= -LTTNG_ERR_INVALID
;
521 raw_data_str
= lttng_strndup(buffer
, PATH_MAX
);
523 ret
= -LTTNG_ERR_NOMEM
;
527 data_str
= lttng_strndup(raw_data_str
, PATH_MAX
);
529 ret
= -LTTNG_ERR_NOMEM
;
535 ret
= -LTTNG_ERR_INVALID
;
539 reset_load_session_attr_urls(attr
);
541 attr
->override_attr
->path_url
= path_str
;
542 attr
->override_attr
->ctrl_url
= ctrl_str
;
543 attr
->override_attr
->data_url
= data_str
;
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
;
550 /* Pass data ownership to attr. */
571 int lttng_load_session_attr_set_override_session_name(
572 struct lttng_load_session_attr
*attr
, const char *session_name
)
577 if (!attr
||!session_name
) {
578 ret
= -LTTNG_ERR_INVALID
;
582 if (!attr
->override_attr
) {
583 attr
->override_attr
= zmalloc
<config_load_session_override_attr
>();
584 if (!attr
->override_attr
) {
585 ret
= -LTTNG_ERR_NOMEM
;
590 len
= strlen(session_name
);
591 if (len
>= LTTNG_NAME_MAX
) {
592 ret
= -LTTNG_ERR_INVALID
;
596 attr
->override_attr
->session_name
= lttng_strndup(session_name
,
598 if (!attr
->override_attr
->session_name
) {
599 ret
= -LTTNG_ERR_NOMEM
;
606 int lttng_load_session(struct lttng_load_session_attr
*attr
)
609 const char *url
, *session_name
;
612 ret
= -LTTNG_ERR_INVALID
;
616 ret
= validate_attr(attr
);
621 url
= attr
->input_url
[0] != '\0' ? attr
->input_url
: NULL
;
622 session_name
= attr
->session_name
[0] != '\0' ?
623 attr
->session_name
: NULL
;
625 ret
= config_load_session(url
, session_name
, attr
->overwrite
, 0,
626 attr
->override_attr
);