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

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

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

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

#include "lttng-ctl-helper.hpp"

struct lttng_load_session_attr *lttng_load_session_attr_create(void)
{
	return zmalloc<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. */
	ret = lttng_strncpy(attr->input_url, uris[0].dst.path,
			sizeof(attr->input_url));
	if (ret) {
		ret = -LTTNG_ERR_INVALID;
		goto error;
	}

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<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 = calloc<char>(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<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 = calloc<char>(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<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(uri[0].dst.path, 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<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	9	#include <string.h>
a2a75fa4	10	#include <limits.h>
9245bd0e DG	11
	12	#include <lttng/lttng-error.h>
	13	#include <lttng/load.h>
c9e313bc SM	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>
	20
	21	#include "lttng-ctl-helper.hpp"
9245bd0e DG	22
	23	struct lttng_load_session_attr *lttng_load_session_attr_create(void)
	24	{
64803277	25	return zmalloc<lttng_load_session_attr>();
9245bd0e DG	26	}
9245bd0e DG	27
a2a75fa4 JR	28	static
	29	void reset_load_session_attr_urls(struct lttng_load_session_attr *attr)
	30	{
	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);
1b08cbce JR	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);
2aaf5fc7	39	free(attr->override_attr->session_name);
1b08cbce	40	}
a2a75fa4 JR	41	}
a2a75fa4 JR	42
9245bd0e DG	43	void lttng_load_session_attr_destroy(struct lttng_load_session_attr *attr)
	44	{
	45	if (attr) {
a2a75fa4	46	reset_load_session_attr_urls(attr);
1b08cbce	47	free(attr->override_attr);
9245bd0e DG	48	free(attr);
	49	}
	50	}
	51
2aaf5fc7 JR	52	static int validate_attr(const struct lttng_load_session_attr *attr)
	53	{
	54	int ret = 0;
	55
	56	if (!attr) {
	57	ret = -LTTNG_ERR_INVALID;
	58	goto end;
	59	}
	60
	61	if (!attr->override_attr) {
	62	goto end;
	63	}
	64
	65	/*
	66	* Refuse override name if the objective is to load multiple session
	67	* since this operation is ambiguous while loading multiple session.
	68	*/
	69	if (attr->override_attr->session_name
	70	&& attr->session_name[0] == '\0') {
	71	ret = -LTTNG_ERR_INVALID;
	72	goto end;
	73	}
	74	end:
	75	return ret;
	76	}
	77
9245bd0e DG	78	const char *lttng_load_session_attr_get_session_name(
	79	struct lttng_load_session_attr *attr)
	80	{
	81	const char *ret = NULL;
	82
	83	if (attr && attr->session_name[0]) {
	84	ret = attr->session_name;
	85	}
	86
	87	return ret;
	88	}
	89
	90	const char *lttng_load_session_attr_get_input_url(
	91	struct lttng_load_session_attr *attr)
	92	{
	93	const char *ret = NULL;
	94
	95	if (attr && attr->input_url[0]) {
	96	ret = attr->input_url;
	97	}
	98
	99	return ret;
	100	}
	101
	102	int lttng_load_session_attr_get_overwrite(
	103	struct lttng_load_session_attr *attr)
	104	{
	105	return attr ? attr->overwrite : -LTTNG_ERR_INVALID;
	106	}
	107
a2a75fa4 JR	108	const char *lttng_load_session_attr_get_override_ctrl_url(
	109	struct lttng_load_session_attr *attr)
	110	{
	111	const char *ret = NULL;
	112
49c360e8 JR	113	if (!attr \|\| !attr->override_attr) {
49c360e8 JR	114	goto end;
a2a75fa4 JR	115	}
a2a75fa4 JR	116
49c360e8 JR	117	ret = attr->raw_override_ctrl_url;
49c360e8 JR	118	end:
a2a75fa4 JR	119	return ret;
	120	}
	121
	122	const char *lttng_load_session_attr_get_override_data_url(
	123	struct lttng_load_session_attr *attr)
	124	{
	125	const char *ret = NULL;
	126
49c360e8 JR	127	if (!attr \|\| !attr->override_attr) {
49c360e8 JR	128	goto end;
a2a75fa4 JR	129	}
a2a75fa4 JR	130
49c360e8 JR	131	ret = attr->raw_override_data_url;
49c360e8 JR	132	end:
a2a75fa4 JR	133	return ret;
	134	}
	135
	136	const char *lttng_load_session_attr_get_override_url(
	137	struct lttng_load_session_attr *attr)
	138	{
	139	const char *ret = NULL;
	140
49c360e8 JR	141	if (!attr \|\| !attr->override_attr) {
	142	goto end;
	143	}
	144
	145	if ((attr->override_attr->path_url \|\|
1b08cbce JR	146	(attr->override_attr->ctrl_url &&
1b08cbce JR	147	attr->override_attr->data_url))) {
a2a75fa4 JR	148	ret = attr->raw_override_url;
a2a75fa4 JR	149	}
49c360e8	150	end:
a2a75fa4 JR	151	return ret;
	152	}
	153
2aaf5fc7 JR	154	const char *lttng_load_session_attr_get_override_session_name(
	155	struct lttng_load_session_attr *attr)
	156	{
	157	const char *ret = NULL;
	158
	159	if (!attr \|\| !attr->override_attr) {
	160	goto end;
	161	}
	162
	163	ret = attr->override_attr->session_name;
	164	end:
	165	return ret;
	166	}
	167
9245bd0e DG	168	int lttng_load_session_attr_set_session_name(
	169	struct lttng_load_session_attr attr, const char session_name)
	170	{
	171	int ret = 0;
	172
	173	if (!attr) {
	174	ret = -LTTNG_ERR_INVALID;
	175	goto error;
	176	}
	177
	178	if (session_name) {
	179	size_t len;
	180
	181	len = strlen(session_name);
36d2e35d	182	if (len >= LTTNG_NAME_MAX) {
9245bd0e DG	183	ret = -LTTNG_ERR_INVALID;
	184	goto error;
	185	}
	186
3716477e JG	187	ret = lttng_strncpy(attr->session_name, session_name,
	188	sizeof(attr->session_name));
	189	if (ret) {
	190	ret = -LTTNG_ERR_INVALID;
	191	goto error;
	192	}
9245bd0e DG	193	} else {
	194	attr->session_name[0] = '\0';
	195	}
	196	error:
	197	return ret;
	198	}
	199
	200	int lttng_load_session_attr_set_input_url(
	201	struct lttng_load_session_attr attr, const char url)
	202	{
	203	int ret = 0;
584e475e JR	204	size_t len;
584e475e JR	205	ssize_t size;
9245bd0e DG	206	struct lttng_uri *uris = NULL;
	207
	208	if (!attr) {
	209	ret = -LTTNG_ERR_INVALID;
	210	goto error;
	211	}
	212
	213	if (!url) {
	214	attr->input_url[0] = '\0';
	215	ret = 0;
	216	goto end;
	217	}
	218
	219	len = strlen(url);
	220	if (len >= PATH_MAX) {
	221	ret = -LTTNG_ERR_INVALID;
	222	goto error;
	223	}
	224
	225	size = uri_parse_str_urls(url, NULL, &uris);
	226	if (size <= 0 \|\| uris[0].dtype != LTTNG_DST_PATH) {
	227	ret = -LTTNG_ERR_INVALID;
	228	goto error;
	229	}
	230
	231	/* Copy string plus the NULL terminated byte. */
e1b624d0	232	ret = lttng_strncpy(attr->input_url, uris[0].dst.path,
9245bd0e	233	sizeof(attr->input_url));
e1b624d0 JG	234	if (ret) {
	235	ret = -LTTNG_ERR_INVALID;
	236	goto error;
	237	}
9245bd0e DG	238
	239	end:
	240	error:
	241	free(uris);
	242	return ret;
	243	}
	244
	245	int lttng_load_session_attr_set_overwrite(
	246	struct lttng_load_session_attr *attr, int overwrite)
	247	{
	248	int ret = 0;
	249
	250	if (!attr) {
	251	ret = -LTTNG_ERR_INVALID;
	252	goto end;
	253	}
	254
	255	attr->overwrite = !!overwrite;
	256	end:
	257	return ret;
	258	}
	259
a2a75fa4 JR	260	int lttng_load_session_attr_set_override_ctrl_url(
	261	struct lttng_load_session_attr attr, const char url)
	262	{
	263	int ret = 0;
	264	ssize_t ret_size;
	265	struct lttng_uri *uri = NULL;
	266	char *url_str = NULL;
	267	char *raw_str = NULL;
	268
	269	if (!attr) {
	270	ret = -LTTNG_ERR_INVALID;
	271	goto end;
	272	}
	273
1b08cbce	274	if (!attr->override_attr) {
64803277	275	attr->override_attr = zmalloc<config_load_session_override_attr>();
1b08cbce JR	276	if (!attr->override_attr) {
	277	ret = -LTTNG_ERR_NOMEM;
	278	goto end;
	279	}
	280	}
	281
	282	if (attr->override_attr->path_url) {
a2a75fa4	283	/*
1b08cbce JR	284	* Setting a ctrl override after a path override makes no sense.
1b08cbce JR	285	*/
a2a75fa4 JR	286	ret = -LTTNG_ERR_INVALID;
	287	goto end;
	288	}
	289
	290	/*
	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.
	294	*/
	295	ret_size = uri_parse(url, &uri);
	296	if (ret_size < 0) {
	297	ret = -LTTNG_ERR_INVALID;
	298	goto end;
	299	}
	300
	301	if (uri[0].port == 0) {
	302	uri[0].port = DEFAULT_NETWORK_CONTROL_PORT;
	303	}
	304
64803277	305	url_str = calloc<char>(PATH_MAX);
a2a75fa4 JR	306	if (!url_str) {
	307	/* FIXME: return valid error */
	308	ret = -LTTNG_ERR_NOMEM;
	309	goto end;
	310	}
	311
	312	ret = uri_to_str_url(&uri[0], url_str, PATH_MAX);
	313	if (ret < 0) {
	314	ret = -LTTNG_ERR_INVALID;
	315	goto end;
	316	}
	317	ret = 0;
	318
	319	raw_str = lttng_strndup(url, PATH_MAX);
	320	if (!raw_str) {
	321	ret = -LTTNG_ERR_NOMEM;
	322	goto end;
	323	}
	324
	325	/* Squash old value if any */
1b08cbce	326	free(attr->override_attr->ctrl_url);
a2a75fa4 JR	327	free(attr->raw_override_ctrl_url);
	328
	329	/* Populate the object */
1b08cbce	330	attr->override_attr->ctrl_url = url_str;
a2a75fa4 JR	331	attr->raw_override_ctrl_url = raw_str;
	332
	333	/* Ownership passed to attr. */
	334	url_str = NULL;
	335	raw_str = NULL;
	336
	337	end:
	338	free(raw_str);
	339	free(url_str);
	340	free(uri);
	341	return ret;
	342	}
	343
	344	int lttng_load_session_attr_set_override_data_url(
	345	struct lttng_load_session_attr attr, const char url)
	346	{
	347	int ret = 0;
	348	ssize_t ret_size;
	349	struct lttng_uri *uri = NULL;
	350	char *url_str = NULL;
	351	char *raw_str = NULL;
	352
	353	if (!attr) {
	354	ret = -LTTNG_ERR_INVALID;
	355	goto end;
	356	}
	357
1b08cbce	358	if (!attr->override_attr) {
64803277	359	attr->override_attr = zmalloc<config_load_session_override_attr>();
1b08cbce JR	360	if (!attr->override_attr) {
	361	ret = -LTTNG_ERR_NOMEM;
	362	goto end;
	363	}
	364	}
	365
	366	if (attr->override_attr->path_url) {
	367	/*
	368	* Setting a data override after a path override makes no sense.
	369	*/
a2a75fa4 JR	370	ret = -LTTNG_ERR_INVALID;
	371	goto end;
	372	}
	373
	374	/*
	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.
	378	*/
	379	ret_size = uri_parse(url, &uri);
	380	if (ret_size < 0) {
	381	ret = -LTTNG_ERR_INVALID;
	382	goto end;
	383	}
	384
	385	if (uri[0].port == 0) {
	386	uri[0].port = DEFAULT_NETWORK_DATA_PORT;
	387	}
	388
64803277	389	url_str = calloc<char>(PATH_MAX);
a2a75fa4 JR	390	if (!url_str) {
	391	ret = -LTTNG_ERR_NOMEM;
	392	goto end;
	393	}
	394
	395	ret = uri_to_str_url(&uri[0], url_str, PATH_MAX);
	396	if (ret < 0) {
	397	ret = -LTTNG_ERR_INVALID;
	398	goto end;
	399	}
	400	ret = 0;
	401
	402	raw_str = lttng_strndup(url, PATH_MAX);
	403	if (!raw_str) {
	404	ret = -LTTNG_ERR_NOMEM;
	405	goto end;
	406	}
	407
	408	/* Squash old value if any */
1b08cbce	409	free(attr->override_attr->data_url);
a2a75fa4 JR	410	free(attr->raw_override_data_url);
	411
	412	/* Populate the object */
1b08cbce	413	attr->override_attr->data_url = url_str;
a2a75fa4 JR	414	attr->raw_override_data_url = raw_str;
	415
	416	/* Ownership passed to attr. */
	417	url_str = NULL;
	418	raw_str = NULL;
	419	end:
	420	free(raw_str);
	421	free(url_str);
	422	free(uri);
	423	return ret;
	424	}
	425
	426	int lttng_load_session_attr_set_override_url(
	427	struct lttng_load_session_attr attr, const char url)
	428	{
	429	int ret = 0;
	430	ssize_t ret_size;
	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];
	440
	441	if (!attr \|\| !url \|\| strlen(url) >= PATH_MAX) {
	442	ret = -LTTNG_ERR_INVALID;
	443	goto end;
	444	}
	445
1b08cbce	446	if (!attr->override_attr) {
64803277	447	attr->override_attr = zmalloc<config_load_session_override_attr>();
1b08cbce JR	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
a03abed1	488	path_str = lttng_strndup(uri[0].dst.path, PATH_MAX);
a2a75fa4 JR	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) {
64803277	583	attr->override_attr = zmalloc<config_load_session_override_attr>();
2aaf5fc7 JR	584	if (!attr->override_attr) {
	585	ret = -LTTNG_ERR_NOMEM;
	586	goto end;
	587	}
	588	}
	589
	590	len = strlen(session_name);
	591	if (len >= LTTNG_NAME_MAX) {
	592	ret = -LTTNG_ERR_INVALID;
	593	goto end;
	594	}
	595
	596	attr->override_attr->session_name = lttng_strndup(session_name,
	597	len);
	598	if (!attr->override_attr->session_name) {
	599	ret = -LTTNG_ERR_NOMEM;
	600	goto end;
	601	}
	602	end:
	603	return ret;
	604	}
	605
9245bd0e DG	606	int lttng_load_session(struct lttng_load_session_attr *attr)
	607	{
	608	int ret;
18e29540	609	const char url, session_name;
9245bd0e DG	610
	611	if (!attr) {
	612	ret = -LTTNG_ERR_INVALID;
	613	goto end;
	614	}
	615
2aaf5fc7 JR	616	ret = validate_attr(attr);
	617	if (ret) {
	618	goto end;
	619	}
	620
18e29540 JG	621	url = attr->input_url[0] != '\0' ? attr->input_url : NULL;
	622	session_name = attr->session_name[0] != '\0' ?
	623	attr->session_name : NULL;
	624
1b08cbce JR	625	ret = config_load_session(url, session_name, attr->overwrite, 0,
1b08cbce JR	626	attr->override_attr);
9245bd0e DG	627
	628	end:
	629	return ret;
	630	}