[lttng-tools.git] / src / lib / lttng-ctl / load.c

/*
 * Copyright (C) 2014 David Goulet <dgoulet@efficios.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 */

#define _LGPL_SOURCE
#include <assert.h>
#include <string.h>
#include <limits.h>

#include <lttng/lttng-error.h>
#include <lttng/load.h>
#include <lttng/load-internal.h>
#include <common/sessiond-comm/sessiond-comm.h>
#include <common/config/session-config.h>
#include <common/uri.h>
#include <common/macros.h>
#include <common/compat/string.h>

#include "lttng-ctl-helper.h"

struct lttng_load_session_attr *lttng_load_session_attr_create(void)
{
	return zmalloc(sizeof(struct lttng_load_session_attr));
}

static
void reset_load_session_attr_urls(struct lttng_load_session_attr *attr)
{
	free(attr->raw_override_url);
	free(attr->raw_override_path_url);
	free(attr->raw_override_ctrl_url);
	free(attr->raw_override_data_url);
	if (attr->override_attr) {
		free(attr->override_attr->path_url);
		free(attr->override_attr->ctrl_url);
		free(attr->override_attr->data_url);
		free(attr->override_attr->session_name);
	}
}

void lttng_load_session_attr_destroy(struct lttng_load_session_attr *attr)
{
	if (attr) {
		reset_load_session_attr_urls(attr);
		free(attr->override_attr);
		free(attr);
	}
}

static int validate_attr(const struct lttng_load_session_attr *attr)
{
	int ret = 0;

	if (!attr) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	if (!attr->override_attr) {
		goto end;
	}

	/*
	 * Refuse override name if the objective is to load multiple session
	 * since this operation is ambiguous while loading multiple session.
	 */
	if (attr->override_attr->session_name
			&& attr->session_name[0] == '\0') {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}
end:
	return ret;
}

const char *lttng_load_session_attr_get_session_name(
	struct lttng_load_session_attr *attr)
{
	const char *ret = NULL;

	if (attr && attr->session_name[0]) {
		ret = attr->session_name;
	}

	return ret;
}

const char *lttng_load_session_attr_get_input_url(
	struct lttng_load_session_attr *attr)
{
	const char *ret = NULL;

	if (attr && attr->input_url[0]) {
		ret = attr->input_url;
	}

	return ret;
}

int lttng_load_session_attr_get_overwrite(
	struct lttng_load_session_attr *attr)
{
	return attr ? attr->overwrite : -LTTNG_ERR_INVALID;
}

const char *lttng_load_session_attr_get_override_ctrl_url(
	struct lttng_load_session_attr *attr)
{
	const char *ret = NULL;

	if (!attr || !attr->override_attr) {
		goto end;
	}

	ret = attr->raw_override_ctrl_url;
end:
	return ret;
}

const char *lttng_load_session_attr_get_override_data_url(
	struct lttng_load_session_attr *attr)
{
	const char *ret = NULL;

	if (!attr || !attr->override_attr) {
		goto end;
	}

	ret = attr->raw_override_data_url;
end:
	return ret;
}

const char *lttng_load_session_attr_get_override_url(
		struct lttng_load_session_attr *attr)
{
	const char *ret = NULL;

	if (!attr || !attr->override_attr) {
		goto end;
	}

	if ((attr->override_attr->path_url ||
		(attr->override_attr->ctrl_url &&
		 attr->override_attr->data_url))) {
		ret = attr->raw_override_url;
	}
end:
	return ret;
}

const char *lttng_load_session_attr_get_override_session_name(
		struct lttng_load_session_attr *attr)
{
	const char *ret = NULL;

	if (!attr || !attr->override_attr) {
		goto end;
	}

	ret = attr->override_attr->session_name;
end:
	return ret;
}

int lttng_load_session_attr_set_session_name(
	struct lttng_load_session_attr *attr, const char *session_name)
{
	int ret = 0;

	if (!attr) {
		ret = -LTTNG_ERR_INVALID;
		goto error;
	}

	if (session_name) {
		size_t len;

		len = strlen(session_name);
		if (len >= LTTNG_NAME_MAX) {
			ret = -LTTNG_ERR_INVALID;
			goto error;
		}

		ret = lttng_strncpy(attr->session_name, session_name,
				sizeof(attr->session_name));
		if (ret) {
			ret = -LTTNG_ERR_INVALID;
			goto error;
		}
	} else {
		attr->session_name[0] = '\0';
	}
error:
	return ret;
}

int lttng_load_session_attr_set_input_url(
	struct lttng_load_session_attr *attr, const char *url)
{
	int ret = 0;
	size_t len;
	ssize_t size;
	struct lttng_uri *uris = NULL;

	if (!attr) {
		ret = -LTTNG_ERR_INVALID;
		goto error;
	}

	if (!url) {
		attr->input_url[0] = '\0';
		ret = 0;
		goto end;
	}

	len = strlen(url);
	if (len >= PATH_MAX) {
		ret = -LTTNG_ERR_INVALID;
		goto error;
	}

	size = uri_parse_str_urls(url, NULL, &uris);
	if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) {
		ret = -LTTNG_ERR_INVALID;
		goto error;
	}

	/* Copy string plus the NULL terminated byte. */
	lttng_ctl_copy_string(attr->input_url, uris[0].dst.path,
			sizeof(attr->input_url));

end:
error:
	free(uris);
	return ret;
}

int lttng_load_session_attr_set_overwrite(
	struct lttng_load_session_attr *attr, int overwrite)
{
	int ret = 0;

	if (!attr) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	attr->overwrite = !!overwrite;
end:
	return ret;
}

int lttng_load_session_attr_set_override_ctrl_url(
	struct lttng_load_session_attr *attr, const char *url)
{
	int ret = 0;
	ssize_t ret_size;
	struct lttng_uri *uri = NULL;
	char *url_str = NULL;
	char *raw_str = NULL;

	if (!attr) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	if (!attr->override_attr) {
		attr->override_attr = zmalloc(
			sizeof(struct config_load_session_override_attr));
		if (!attr->override_attr) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}
	}

	if (attr->override_attr->path_url) {
		/*
		 * Setting a ctrl override after a path override makes no sense.
		 */
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	/*
	 * FIXME: uri_parse should be able to take as parameter the protocol
	 * type to validate "url". For now only check the parsing goes through;
	 * it will fail later on.
	 */
	ret_size = uri_parse(url, &uri);
	if (ret_size < 0) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	if (uri[0].port == 0) {
		uri[0].port = DEFAULT_NETWORK_CONTROL_PORT;
	}

	url_str = zmalloc(PATH_MAX);
	if (!url_str) {
		/* FIXME: return valid error */
		ret = -LTTNG_ERR_NOMEM;
		goto end;
	}

	ret = uri_to_str_url(&uri[0], url_str, PATH_MAX);
	if (ret < 0) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}
	ret = 0;

	raw_str = lttng_strndup(url, PATH_MAX);
	if (!raw_str) {
		ret = -LTTNG_ERR_NOMEM;
		goto end;
	}

	/* Squash old value if any */
	free(attr->override_attr->ctrl_url);
	free(attr->raw_override_ctrl_url);

	/* Populate the object */
	attr->override_attr->ctrl_url = url_str;
	attr->raw_override_ctrl_url = raw_str;

	/* Ownership passed to attr. */
	url_str = NULL;
	raw_str = NULL;

end:
	free(raw_str);
	free(url_str);
	free(uri);
	return ret;
}

int lttng_load_session_attr_set_override_data_url(
	struct lttng_load_session_attr *attr, const char *url)
{
	int ret = 0;
	ssize_t ret_size;
	struct lttng_uri *uri = NULL;
	char *url_str = NULL;
	char *raw_str = NULL;

	if (!attr) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	if (!attr->override_attr) {
		attr->override_attr = zmalloc(
			sizeof(struct config_load_session_override_attr));
		if (!attr->override_attr) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}
	}

	if (attr->override_attr->path_url) {
		/*
		 * Setting a data override after a path override makes no sense.
		 */
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	/*
	 * FIXME: uri_parse should be able to take as parameter the protocol
	 * type to validate "url". For now only check the parsing goes through;
	 * it will fail later on.
	 */
	ret_size = uri_parse(url, &uri);
	if (ret_size < 0) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	if (uri[0].port == 0) {
		uri[0].port = DEFAULT_NETWORK_DATA_PORT;
	}

	url_str = zmalloc(PATH_MAX);
	if (!url_str) {
		ret = -LTTNG_ERR_NOMEM;
		goto end;
	}

	ret = uri_to_str_url(&uri[0], url_str, PATH_MAX);
	if (ret < 0) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}
	ret = 0;

	raw_str = lttng_strndup(url, PATH_MAX);
	if (!raw_str) {
		ret = -LTTNG_ERR_NOMEM;
		goto end;
	}

	/* Squash old value if any */
	free(attr->override_attr->data_url);
	free(attr->raw_override_data_url);

	/* Populate the object */
	attr->override_attr->data_url = url_str;
	attr->raw_override_data_url = raw_str;

	/* Ownership passed to attr. */
	url_str = NULL;
	raw_str = NULL;
end:
	free(raw_str);
	free(url_str);
	free(uri);
	return ret;
}

int lttng_load_session_attr_set_override_url(
		struct lttng_load_session_attr *attr, const char *url)
{
	int ret = 0;
	ssize_t ret_size;
	struct lttng_uri *uri = NULL;
	char *raw_url_str = NULL;
	char *raw_path_str = NULL;
	char *path_str = NULL;
	char *raw_ctrl_str = NULL;
	char *ctrl_str = NULL;
	char *raw_data_str = NULL;
	char *data_str = NULL;
	char buffer[PATH_MAX];

	if (!attr || !url || strlen(url) >= PATH_MAX) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	if (!attr->override_attr) {
		attr->override_attr = zmalloc(
			sizeof(struct config_load_session_override_attr));
		if (!attr->override_attr) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}
	}

	/*
	 * FIXME: uri_parse should be able to take as parameter the protocol
	 * type to validate "url". For now only check the parsing goes through;
	 * it will fail later on.
	 */
	ret_size = uri_parse_str_urls(url, NULL, &uri);
	if (ret_size < 0 || ret_size > 2) {
		/* Unexpected URL format. */
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	raw_url_str = lttng_strndup(url, PATH_MAX);
	if (!raw_url_str) {
		ret = -LTTNG_ERR_NOMEM;
		goto end;
	}

	/* Get path | ctrl && data string URL. */
	ret = uri_to_str_url(&uri[0], buffer, sizeof(buffer));
	if (ret < 0 || ret >= PATH_MAX) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}
	ret = 0;

	switch (uri[0].dtype) {
	case LTTNG_DST_PATH:
		raw_path_str = lttng_strndup(buffer, PATH_MAX);
		if (!raw_path_str) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}

		path_str = lttng_strndup(raw_path_str, PATH_MAX);
		if (!path_str) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}
		break;
	case LTTNG_DST_IPV4:
	case LTTNG_DST_IPV6:
		if (ret_size != 2) {
			ret = -LTTNG_ERR_INVALID;
			goto end;
		}

		raw_ctrl_str = lttng_strndup(buffer, PATH_MAX);
		if (!raw_ctrl_str) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}

		ctrl_str = lttng_strndup(raw_ctrl_str, PATH_MAX);
		if (!ctrl_str) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}

		/* Get the data uri. */
		ret = uri_to_str_url(&uri[1], buffer, sizeof(buffer));
		if (ret < 0) {
			ret = -LTTNG_ERR_INVALID;
			goto end;
		}
		ret = 0;

		raw_data_str = lttng_strndup(buffer, PATH_MAX);
		if (!raw_data_str) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}

		data_str = lttng_strndup(raw_data_str, PATH_MAX);
		if (!data_str) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}

		break;
	default:
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	reset_load_session_attr_urls(attr);

	attr->override_attr->path_url = path_str;
	attr->override_attr->ctrl_url = ctrl_str;
	attr->override_attr->data_url = data_str;

	attr->raw_override_url = raw_url_str;
	attr->raw_override_path_url = raw_path_str;
	attr->raw_override_ctrl_url = raw_ctrl_str;
	attr->raw_override_data_url = raw_data_str;

	/* Pass data ownership to attr. */
	raw_url_str = NULL;
	raw_path_str = NULL;
	path_str = NULL;
	raw_ctrl_str = NULL;
	ctrl_str = NULL;
	raw_data_str = NULL;
	data_str = NULL;

end:
	free(raw_path_str);
	free(path_str);
	free(raw_ctrl_str);
	free(ctrl_str);
	free(raw_data_str);
	free(data_str);
	free(raw_url_str);
	free(uri);
	return ret;
}

int lttng_load_session_attr_set_override_session_name(
	struct lttng_load_session_attr *attr, const char *session_name)
{
	int ret = 0;
	size_t len;

	if (!attr ||!session_name) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	if (!attr->override_attr) {
		attr->override_attr = zmalloc(
			sizeof(struct config_load_session_override_attr));
		if (!attr->override_attr) {
			ret = -LTTNG_ERR_NOMEM;
			goto end;
		}
	}

	len = strlen(session_name);
	if (len >= LTTNG_NAME_MAX) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	attr->override_attr->session_name = lttng_strndup(session_name,
		len);
	if (!attr->override_attr->session_name) {
		ret = -LTTNG_ERR_NOMEM;
		goto end;
	}
end:
	return ret;
}

int lttng_load_session(struct lttng_load_session_attr *attr)
{
	int ret;
	const char *url, *session_name;

	if (!attr) {
		ret = -LTTNG_ERR_INVALID;
		goto end;
	}

	ret = validate_attr(attr);
	if (ret) {
		goto end;
	}

	url = attr->input_url[0] != '\0' ? attr->input_url : NULL;
	session_name = attr->session_name[0] != '\0' ?
			attr->session_name : NULL;

	ret = config_load_session(url, session_name, attr->overwrite, 0,
			attr->override_attr);

end:
	return ret;
}
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	*/
9245bd0e DG	7
6c1c0768	8	#define _LGPL_SOURCE
9245bd0e DG	9	#include <assert.h>
9245bd0e DG	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	}
a2a75fa4 JR	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) {
49c360e8 JR	115	goto end;
a2a75fa4 JR	116	}
a2a75fa4 JR	117
49c360e8 JR	118	ret = attr->raw_override_ctrl_url;
49c360e8 JR	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) {
49c360e8 JR	129	goto end;
a2a75fa4 JR	130	}
a2a75fa4 JR	131
49c360e8 JR	132	ret = attr->raw_override_data_url;
49c360e8 JR	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 &&
1b08cbce JR	148	attr->override_attr->data_url))) {
a2a75fa4 JR	149	ret = attr->raw_override_url;
a2a75fa4 JR	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;
584e475e JR	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.
1b08cbce JR	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,
1b08cbce JR	627	attr->override_attr);
9245bd0e DG	628
	629	end:
	630	return ret;
	631	}