X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fsession-descriptor.c;fp=src%2Fcommon%2Fsession-descriptor.c;h=0000000000000000000000000000000000000000;hp=93c7dfa47795f5a5e31fe8d2a8b792c1e9298b52;hb=a6bc4ca9d659caf016ef932fcd944029737ac57c;hpb=97535efaa975ca52bf02c2d5e76351bfd2e3defa

diff --git a/src/common/session-descriptor.c b/src/common/session-descriptor.c
deleted file mode 100644
index 93c7dfa47..000000000
--- a/src/common/session-descriptor.c
+++ /dev/null
@@ -1,1155 +0,0 @@
-/*
- * Copyright (C) 2019 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- */
-
-#include <lttng/session-descriptor-internal.h>
-#include <common/macros.h>
-#include <common/uri.h>
-#include <common/defaults.h>
-#include <common/error.h>
-#include <time.h>
-#include <stdio.h>
-
-struct lttng_session_descriptor_network_location {
-	struct lttng_uri *control;
-	struct lttng_uri *data;
-};
-
-struct lttng_session_descriptor {
-	enum lttng_session_descriptor_type type;
-	/*
-	 * If an output type that is not OUTPUT_TYPE_NONE is specified,
-	 * it means that an output of that type must be generated at
-	 * session-creation time.
-	 */
-	enum lttng_session_descriptor_output_type output_type;
-	char *name;
-	union {
-		struct lttng_session_descriptor_network_location network;
-		struct lttng_uri *local;
-	} output;
-};
-
-struct lttng_session_descriptor_snapshot {
-	struct lttng_session_descriptor base;
-	/*
-	 * Assumes at-most one snapshot output is supported. Uses
-	 * the output field of the base class.
-	 */
-};
-
-struct lttng_session_descriptor_live {
-	struct lttng_session_descriptor base;
-	unsigned long long live_timer_us;
-};
-
-struct lttng_session_descriptor_comm {
-	/* enum lttng_session_descriptor_type */
-	uint8_t type;
-	/* enum lttng_session_descriptor_output_type */
-	uint8_t output_type;
-	/* Includes trailing null. */
-	uint32_t name_len;
-	/* Name follows, followed by URIs */
-	uint8_t uri_count;
-} LTTNG_PACKED;
-
-struct lttng_session_descriptor_live_comm {
-	struct lttng_session_descriptor_comm base;
-	/* Live-specific parameters. */
-	uint64_t live_timer_us;
-} LTTNG_PACKED;
-
-static
-struct lttng_uri *uri_copy(const struct lttng_uri *uri)
-{
-	struct lttng_uri *new_uri = NULL;
-
-	if (!uri) {
-		goto end;
-	}
-
-	new_uri = zmalloc(sizeof(*new_uri));
-	if (!new_uri) {
-		goto end;
-	}
-	memcpy(new_uri, uri, sizeof(*new_uri));
-end:
-	return new_uri;
-}
-
-static
-struct lttng_uri *uri_from_path(const char *path)
-{
-	struct lttng_uri *uris = NULL;
-	ssize_t uri_count;
-	char local_protocol_string[LTTNG_PATH_MAX + sizeof("file://")] =
-			"file://";
-
-	if (strlen(path) >= LTTNG_PATH_MAX) {
-		goto end;
-	}
-
-	if (path[0] != '/') {
-		/* Not an absolute path. */
-		goto end;
-	}
-
-	strncat(local_protocol_string, path, LTTNG_PATH_MAX);
-	uri_count = uri_parse(local_protocol_string, &uris);
-	if (uri_count != 1) {
-		goto error;
-	}
-	if (uris[0].dtype != LTTNG_DST_PATH) {
-		goto error;
-	}
-
-end:
-	return uris;
-error:
-	free(uris);
-	return NULL;
-}
-
-static
-void network_location_fini(
-		struct lttng_session_descriptor_network_location *location)
-{
-	free(location->control);
-	free(location->data);
-}
-
-/* Assumes ownership of control and data. */
-static
-int network_location_set_from_lttng_uris(
-		struct lttng_session_descriptor_network_location *location,
-		struct lttng_uri *control, struct lttng_uri *data)
-{
-	int ret = 0;
-
-	if (!control && !data) {
-		goto end;
-	}
-
-	if (!(control && data)) {
-		/* None or both must be set. */
-		ret = -1;
-		goto end;
-	}
-
-	if (control->stype != LTTNG_STREAM_CONTROL ||
-			data->stype != LTTNG_STREAM_DATA) {
-		ret = -1;
-		goto end;
-	}
-
-	free(location->control);
-	free(location->data);
-	location->control = control;
-	location->data = data;
-	control = NULL;
-	data = NULL;
-end:
-	free(control);
-	free(data);
-	return ret;
-}
-
-static
-int network_location_set_from_uri_strings(
-		struct lttng_session_descriptor_network_location *location,
-		const char *control, const char *data)
-{
-	int ret = 0;
-	ssize_t uri_count;
-	struct lttng_uri *parsed_uris = NULL;
-	struct lttng_uri *control_uri = NULL;
-	struct lttng_uri *data_uri = NULL;
-
-	uri_count = uri_parse_str_urls(control, data, &parsed_uris);
-	if (uri_count != 2 && uri_count != 0) {
-		ret = -1;
-		goto end;
-	}
-
-	/*
-	 * uri_parse_str_urls returns a contiguous array of lttng_uris whereas
-	 * session descriptors expect individually allocated lttng_uris.
-	 */
-	if (uri_count == 2) {
-		control_uri = zmalloc(sizeof(*control_uri));
-		data_uri = zmalloc(sizeof(*data_uri));
-		if (!control_uri || !data_uri) {
-			ret = -1;
-			goto end;
-		}
-		memcpy(control_uri, &parsed_uris[0], sizeof(*control_uri));
-		memcpy(data_uri, &parsed_uris[1], sizeof(*data_uri));
-	}
-
-	/* Ownership of control and data uris is transferred. */
-	ret = network_location_set_from_lttng_uris(
-			location,
-			control_uri,
-			data_uri);
-	control_uri = NULL;
-	data_uri = NULL;
-end:
-	free(parsed_uris);
-	free(control_uri);
-	free(data_uri);
-	return ret;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_create(const char *name)
-{
-	struct lttng_session_descriptor *descriptor;
-
-	descriptor = zmalloc(sizeof(*descriptor));
-	if (!descriptor) {
-		goto error;
-	}
-
-	descriptor->type = LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR;
-	descriptor->output_type =
-			LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE;
-	if (lttng_session_descriptor_set_session_name(descriptor, name)) {
-		goto error;
-	}
-	return descriptor;
-error:
-	lttng_session_descriptor_destroy(descriptor);
-	return NULL;
-}
-
-/* Ownership of uri is transferred. */
-static
-struct lttng_session_descriptor *
-_lttng_session_descriptor_local_create(const char *name,
-		struct lttng_uri *uri)
-{
-	struct lttng_session_descriptor *descriptor;
-
-	descriptor = lttng_session_descriptor_create(name);
-	if (!descriptor) {
-		goto error;
-	}
-	descriptor->type = LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR;
-	descriptor->output_type =
-			LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL;
-	if (uri) {
-		if (uri->dtype != LTTNG_DST_PATH) {
-			goto error;
-		}
-		descriptor->output.local = uri;
-		uri = NULL;
-	}
-	return descriptor;
-error:
-	free(uri);
-	lttng_session_descriptor_destroy(descriptor);
-	return NULL;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_local_create(const char *name, const char *path)
-{
-	struct lttng_uri *uri = NULL;
-	struct lttng_session_descriptor *descriptor;
-
-	if (path) {
-		uri = uri_from_path(path);
-		if (!uri) {
-			goto error;
-		}
-	}
-	descriptor = _lttng_session_descriptor_local_create(name, uri);
-	return descriptor;
-error:
-	return NULL;
-}
-
-/* Assumes the ownership of both uris. */
-static
-struct lttng_session_descriptor *
-_lttng_session_descriptor_network_create(const char *name,
-		struct lttng_uri *control, struct lttng_uri *data)
-{
-	int ret;
-	struct lttng_session_descriptor *descriptor;
-
-	descriptor = lttng_session_descriptor_create(name);
-	if (!descriptor) {
-		goto error;
-	}
-
-	descriptor->type = LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR;
-	descriptor->output_type = LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK;
-	/* Assumes the ownership of both uris. */
-	ret = network_location_set_from_lttng_uris(&descriptor->output.network,
-			control, data);
-	control = NULL;
-	data = NULL;
-	if (ret) {
-		goto error;
-	}
-	return descriptor;
-error:
-	lttng_session_descriptor_destroy(descriptor);
-	free(control);
-	free(data);
-	return NULL;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_network_create(const char *name,
-		const char *control_url, const char *data_url)
-{
-	int ret;
-	struct lttng_session_descriptor *descriptor;
-
-	descriptor = _lttng_session_descriptor_network_create(name,
-			NULL, NULL);
-	if (!descriptor) {
-		goto error;
-	}
-
-	ret = network_location_set_from_uri_strings(&descriptor->output.network,
-			control_url, data_url);
-	if (ret) {
-		goto error;
-	}
-	return descriptor;
-error:
-	lttng_session_descriptor_destroy(descriptor);
-	return NULL;
-}
-
-static
-struct lttng_session_descriptor_snapshot *
-_lttng_session_descriptor_snapshot_create(const char *name)
-{
-	struct lttng_session_descriptor_snapshot *descriptor;
-
-	descriptor = zmalloc(sizeof(*descriptor));
-	if (!descriptor) {
-		goto error;
-	}
-
-	descriptor->base.type = LTTNG_SESSION_DESCRIPTOR_TYPE_SNAPSHOT;
-	descriptor->base.output_type =
-			LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE;
-	if (lttng_session_descriptor_set_session_name(&descriptor->base,
-			name)) {
-		goto error;
-	}
-	return descriptor;
-error:
-	lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL);
-	return NULL;
-}
-
-/* Ownership of control and data is transferred. */
-static
-struct lttng_session_descriptor_snapshot *
-_lttng_session_descriptor_snapshot_network_create(const char *name,
-		struct lttng_uri *control, struct lttng_uri *data)
-{
-	int ret;
-	struct lttng_session_descriptor_snapshot *descriptor;
-
-	descriptor = _lttng_session_descriptor_snapshot_create(name);
-	if (!descriptor) {
-		goto error;
-	}
-
-	descriptor->base.output_type =
-			LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK;
-	/* Ownership of control and data is transferred. */
-	ret = network_location_set_from_lttng_uris(
-			&descriptor->base.output.network,
-			control, data);
-	control = NULL;
-	data = NULL;
-	if (ret) {
-		goto error;
-	}
-	return descriptor;
-error:
-	free(control);
-	free(data);
-	lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL);
-	return NULL;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_snapshot_create(const char *name)
-{
-	struct lttng_session_descriptor_snapshot *descriptor;
-
-	descriptor = _lttng_session_descriptor_snapshot_create(name);
-	return descriptor ? &descriptor->base : NULL;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_snapshot_network_create(const char *name,
-		const char *control_url, const char *data_url)
-{
-	int ret;
-	struct lttng_session_descriptor_snapshot *descriptor;
-
-	descriptor = _lttng_session_descriptor_snapshot_network_create(name,
-			NULL, NULL);
-	if (!descriptor) {
-		goto error;
-	}
-
-	ret = network_location_set_from_uri_strings(
-			&descriptor->base.output.network,
-			control_url, data_url);
-	if (ret) {
-		goto error;
-	}
-	return &descriptor->base;
-error:
-	lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL);
-	return NULL;
-}
-
-/* Ownership of uri is transferred. */
-static
-struct lttng_session_descriptor_snapshot *
-_lttng_session_descriptor_snapshot_local_create(const char *name,
-		struct lttng_uri *uri)
-{
-	struct lttng_session_descriptor_snapshot *descriptor;
-
-	descriptor = _lttng_session_descriptor_snapshot_create(name);
-	if (!descriptor) {
-		goto error;
-	}
-	descriptor->base.output_type =
-			LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL;
-	if (uri) {
-		if (uri->dtype != LTTNG_DST_PATH) {
-			goto error;
-		}
-		descriptor->base.output.local = uri;
-		uri = NULL;
-	}
-	return descriptor;
-error:
-	free(uri);
-	lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL);
-	return NULL;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_snapshot_local_create(const char *name,
-		const char *path)
-{
-	struct lttng_uri *path_uri = NULL;
-	struct lttng_session_descriptor_snapshot *descriptor;
-
-	if (path) {
-		path_uri = uri_from_path(path);
-		if (!path_uri) {
-			goto error;
-		}
-	}
-	descriptor = _lttng_session_descriptor_snapshot_local_create(name,
-			path_uri);
-	return descriptor ? &descriptor->base : NULL;
-error:
-	return NULL;
-}
-
-static
-struct lttng_session_descriptor_live *
-_lttng_session_descriptor_live_create(const char *name,
-		unsigned long long live_timer_interval_us)
-{
-	struct lttng_session_descriptor_live *descriptor = NULL;
-
-	if (live_timer_interval_us == 0) {
-		goto error;
-	}
-	descriptor = zmalloc(sizeof(*descriptor));
-	if (!descriptor) {
-		goto error;
-	}
-
-	descriptor->base.type = LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE;
-	descriptor->base.output_type =
-			LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE;
-	descriptor->live_timer_us = live_timer_interval_us;
-	if (lttng_session_descriptor_set_session_name(&descriptor->base,
-			name)) {
-		goto error;
-	}
-
-	return descriptor;
-error:
-	lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL);
-	return NULL;
-}
-
-/* Ownership of control and data is transferred. */
-static
-struct lttng_session_descriptor_live *
-_lttng_session_descriptor_live_network_create(
-		const char *name,
-		struct lttng_uri *control, struct lttng_uri *data,
-		unsigned long long live_timer_interval_us)
-{
-	int ret;
-	struct lttng_session_descriptor_live *descriptor;
-
-	descriptor = _lttng_session_descriptor_live_create(name,
-			live_timer_interval_us);
-	if (!descriptor) {
-		goto error;
-	}
-
-	descriptor->base.output_type =
-			LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK;
-
-	/* Ownerwhip of control and data is transferred. */
-	ret = network_location_set_from_lttng_uris(
-			&descriptor->base.output.network,
-			control, data);
-	control = NULL;
-	data = NULL;
-	if (ret) {
-		goto error;
-	}
-	return descriptor;
-error:
-	free(control);
-	free(data);
-	lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL);
-	return NULL;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_live_create(
-		const char *name,
-		unsigned long long live_timer_us)
-{
-	struct lttng_session_descriptor_live *descriptor;
-
-	descriptor = _lttng_session_descriptor_live_create(name, live_timer_us);
-
-	return descriptor ? &descriptor->base : NULL;
-}
-
-struct lttng_session_descriptor *
-lttng_session_descriptor_live_network_create(
-		const char *name,
-		const char *control_url, const char *data_url,
-		unsigned long long live_timer_us)
-{
-	int ret;
-	struct lttng_session_descriptor_live *descriptor;
-
-	descriptor = _lttng_session_descriptor_live_network_create(name,
-			NULL, NULL, live_timer_us);
-	if (!descriptor) {
-		goto error;
-	}
-
-	ret = network_location_set_from_uri_strings(
-			&descriptor->base.output.network,
-			control_url, data_url);
-	if (ret) {
-		goto error;
-	}
-	return &descriptor->base;
-error:
-	lttng_session_descriptor_destroy(descriptor ? &descriptor->base : NULL);
-	return NULL;
-}
-
-void lttng_session_descriptor_destroy(
-		struct lttng_session_descriptor *descriptor)
-{
-	if (!descriptor) {
-		return;
-	}
-
-	switch (descriptor->output_type) {
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-		free(descriptor->output.local);
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-		network_location_fini(&descriptor->output.network);
-		break;
-	default:
-		abort();
-	}
-
-	free(descriptor->name);
-	free(descriptor);
-}
-
-ssize_t lttng_session_descriptor_create_from_buffer(
-		const struct lttng_buffer_view *payload,
-		struct lttng_session_descriptor **descriptor)
-{
-	int i;
-	ssize_t offset = 0, ret;
-	struct lttng_buffer_view current_view;
-	const char *name = NULL;
-	const struct lttng_session_descriptor_comm *base_header;
-	size_t max_expected_uri_count;
-	uint64_t live_timer_us = 0;
-	struct lttng_uri *uris[2] = {};
-	enum lttng_session_descriptor_type type;
-	enum lttng_session_descriptor_output_type output_type;
-
-	current_view = lttng_buffer_view_from_view(payload, offset,
-			sizeof(*base_header));
-	if (!lttng_buffer_view_is_valid(&current_view)) {
-		ret = -1;
-		goto end;
-	}
-
-	base_header = (typeof(base_header)) current_view.data;
-	switch (base_header->type) {
-	case LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR:
-	case LTTNG_SESSION_DESCRIPTOR_TYPE_SNAPSHOT:
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE:
-	{
-		const struct lttng_session_descriptor_live_comm *live_header;
-
-		current_view = lttng_buffer_view_from_view(payload, offset,
-				sizeof(*live_header));
-		if (!lttng_buffer_view_is_valid(&current_view)) {
-			ret = -1;
-			goto end;
-		}
-
-		live_header = (typeof(live_header)) current_view.data;
-		live_timer_us = live_header->live_timer_us;
-		break;
-	}
-	default:
-		ret = -1;
-		goto end;
-	}
-	/* type has been validated. */
-	type = base_header->type;
-
-	switch (base_header->output_type) {
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-		max_expected_uri_count = 0;
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-		max_expected_uri_count = 1;
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-		max_expected_uri_count = 2;
-		break;
-	default:
-		ret = -1;
-		goto end;
-	}
-	/* output_type has been validated. */
-	output_type = base_header->output_type;
-
-	/* Skip after header. */
-	offset += current_view.size;
-	if (!base_header->name_len) {
-		goto skip_name;
-	}
-
-	/* Map the name. */
-	current_view = lttng_buffer_view_from_view(payload, offset,
-			base_header->name_len);
-	if (!lttng_buffer_view_is_valid(&current_view)) {
-		ret = -1;
-		goto end;
-	}
-
-	name = current_view.data;
-	if (base_header->name_len == 1 ||
-			name[base_header->name_len - 1] ||
-			strlen(name) != base_header->name_len - 1) {
-		/*
-		 * Check that the name is not NULL, is NULL-terminated, and
-		 * does not contain a NULL before the last byte.
-		 */
-		ret = -1;
-		goto end;
-	}
-
-	/* Skip after the name. */
-	offset += base_header->name_len;
-skip_name:
-	if (base_header->uri_count > max_expected_uri_count) {
-		ret = -1;
-		goto end;
-	}
-
-	for (i = 0; i < base_header->uri_count; i++) {
-		struct lttng_uri *uri;
-
-		/* Map a URI. */
-		current_view = lttng_buffer_view_from_view(payload,
-				offset, sizeof(*uri));
-		if (!lttng_buffer_view_is_valid(&current_view)) {
-			ret = -1;
-			goto end;
-		}
-
-		uri = (typeof(uri)) current_view.data;
-		uris[i] = zmalloc(sizeof(*uri));
-		if (!uris[i]) {
-			ret = -1;
-			goto end;
-		}
-		memcpy(uris[i], uri, sizeof(*uri));
-		offset += sizeof(*uri);
-	}
-
-	switch (type) {
-	case LTTNG_SESSION_DESCRIPTOR_TYPE_REGULAR:
-		switch (output_type) {
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-			*descriptor = lttng_session_descriptor_create(name);
-			break;
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-			*descriptor = _lttng_session_descriptor_local_create(
-					name, uris[0]);
-			break;
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-			*descriptor = _lttng_session_descriptor_network_create(
-					name, uris[0], uris[1]);
-			break;
-		default:
-			/* Already checked. */
-			abort();
-		}
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_TYPE_SNAPSHOT:
-	{
-		struct lttng_session_descriptor_snapshot *snapshot;
-		switch (output_type) {
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-			snapshot = _lttng_session_descriptor_snapshot_create(
-					name);
-			break;
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-			snapshot = _lttng_session_descriptor_snapshot_local_create(
-					name, uris[0]);
-			break;
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-			snapshot = _lttng_session_descriptor_snapshot_network_create(
-					name, uris[0], uris[1]);
-			break;
-		default:
-			/* Already checked. */
-			abort();
-		}
-		*descriptor = snapshot ? &snapshot->base : NULL;
-		break;
-	}
-	case LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE:
-	{
-		struct lttng_session_descriptor_live *live;
-
-		switch (output_type) {
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-			live = _lttng_session_descriptor_live_create(
-					name, live_timer_us);
-			break;
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-			live = _lttng_session_descriptor_live_network_create(
-					name, uris[0], uris[1],
-					live_timer_us);
-			break;
-		case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-			ret = -1;
-			goto end;
-		default:
-			/* Already checked. */
-			abort();
-		}
-		*descriptor = live ? &live->base : NULL;
-		break;
-	}
-	default:
-		/* Already checked. */
-		abort();
-	}
-	memset(uris, 0, sizeof(uris));
-	if (!*descriptor) {
-		ret = -1;
-		goto end;
-	}
-
-	ret = offset;
-end:
-	free(uris[0]);
-	free(uris[1]);
-	return ret;
-}
-
-int lttng_session_descriptor_serialize(
-		const struct lttng_session_descriptor *descriptor,
-		struct lttng_dynamic_buffer *buffer)
-{
-	int ret, i;
-	/* There are, at most, two URIs to serialize. */
-	struct lttng_uri *uris[2] = {};
-	size_t uri_count = 0;
-	/* The live header is a superset of all headers. */
-	struct lttng_session_descriptor_live_comm header = {
-		.base.type = (uint8_t) descriptor->type,
-		.base.output_type = (uint8_t) descriptor->output_type,
-		.base.name_len = descriptor->name ?
-				strlen(descriptor->name) + 1 : 0,
-	};
-	const void *header_ptr = NULL;
-	size_t header_size;
-
-	switch (descriptor->output_type) {
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-		uris[0] = descriptor->output.local;
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-		uris[0] = descriptor->output.network.control;
-		uris[1] = descriptor->output.network.data;
-		break;
-	default:
-		ret = -1;
-		goto end;
-	}
-	uri_count += !!uris[0];
-	uri_count += !!uris[1];
-
-	header.base.uri_count = uri_count;
-	if (descriptor->type == LTTNG_SESSION_DESCRIPTOR_TYPE_LIVE) {
-		const struct lttng_session_descriptor_live *live =
-				container_of(descriptor, typeof(*live),
-				base);
-
-		header.live_timer_us = live->live_timer_us;
-		header_ptr = &header;
-		header_size = sizeof(header);
-	} else {
-		header_ptr = &header.base;
-		header_size = sizeof(header.base);
-	}
-
-	ret = lttng_dynamic_buffer_append(buffer, header_ptr, header_size);
-	if (ret) {
-		goto end;
-	}
-	if (header.base.name_len) {
-		ret = lttng_dynamic_buffer_append(buffer, descriptor->name,
-				header.base.name_len);
-		if (ret) {
-			goto end;
-		}
-	}
-
-	for (i = 0; i < uri_count; i++) {
-		ret = lttng_dynamic_buffer_append(buffer, uris[i],
-				sizeof(struct lttng_uri));
-		if (ret) {
-			goto end;
-		}
-	}
-end:
-	return ret;
-}
-
-enum lttng_session_descriptor_type
-lttng_session_descriptor_get_type(
-		const struct lttng_session_descriptor *descriptor)
-{
-	return descriptor->type;
-}
-
-enum lttng_session_descriptor_output_type
-lttng_session_descriptor_get_output_type(
-		const struct lttng_session_descriptor *descriptor)
-{
-	return descriptor->output_type;
-}
-
-void lttng_session_descriptor_get_local_output_uri(
-		const struct lttng_session_descriptor *descriptor,
-		struct lttng_uri *local_uri)
-{
-	memcpy(local_uri, descriptor->output.local, sizeof(*local_uri));
-}
-
-void lttng_session_descriptor_get_network_output_uris(
-		const struct lttng_session_descriptor *descriptor,
-		struct lttng_uri *control,
-		struct lttng_uri *data)
-{
-	memcpy(control, descriptor->output.network.control, sizeof(*control));
-	memcpy(data, descriptor->output.network.data, sizeof(*data));
-}
-
-unsigned long long
-lttng_session_descriptor_live_get_timer_interval(
-		const struct lttng_session_descriptor *descriptor)
-{
-	struct lttng_session_descriptor_live *live;
-
-	live = container_of(descriptor, typeof(*live), base);
-	return live->live_timer_us;
-}
-
-enum lttng_session_descriptor_status
-lttng_session_descriptor_get_session_name(
-		const struct lttng_session_descriptor *descriptor,
-		const char **session_name)
-{
-	enum lttng_session_descriptor_status status;
-
-	if (!descriptor || !session_name) {
-		status = LTTNG_SESSION_DESCRIPTOR_STATUS_INVALID;
-		goto end;
-	}
-
-	*session_name = descriptor->name;
-	status = descriptor->name ?
-			LTTNG_SESSION_DESCRIPTOR_STATUS_OK :
-			LTTNG_SESSION_DESCRIPTOR_STATUS_UNSET;
-end:
-	return status;
-}
-
-int lttng_session_descriptor_set_session_name(
-		struct lttng_session_descriptor *descriptor,
-		const char *name)
-{
-	int ret = 0;
-	char *new_name;
-
-	if (!name) {
-		goto end;
-	}
-	if (strlen(name) >= LTTNG_NAME_MAX) {
-		ret = -1;
-		goto end;
-	}
-	new_name = strdup(name);
-	if (!new_name) {
-		ret = -1;
-		goto end;
-	}
-	free(descriptor->name);
-	descriptor->name = new_name;
-end:
-	return ret;
-}
-
-bool lttng_session_descriptor_is_output_destination_initialized(
-		const struct lttng_session_descriptor *descriptor)
-{
-	switch (descriptor->output_type) {
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-		return true;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-		return descriptor->output.local;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-		return descriptor->output.network.control;
-	default:
-		abort();
-	}
-}
-
-bool lttng_session_descriptor_has_output_directory(
-		const struct lttng_session_descriptor *descriptor)
-{
-	switch (descriptor->output_type) {
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-		if (descriptor->output.local) {
-			return *descriptor->output.local->dst.path;
-		}
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-		if (descriptor->output.network.control) {
-			return *descriptor->output.network.control->subdir;
-		}
-		break;
-	default:
-		abort();
-	}
-	return false;
-}
-
-enum lttng_error_code lttng_session_descriptor_set_default_output(
-		struct lttng_session_descriptor *descriptor,
-		time_t *session_creation_time,
-		const char *absolute_home_path)
-{
-	enum lttng_error_code ret_code = LTTNG_OK;
-	struct lttng_uri *uris = NULL;
-
-	switch (descriptor->output_type) {
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-		goto end;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-	{
-		int ret;
-		ssize_t uri_ret;
-		char local_uri[LTTNG_PATH_MAX];
-		char creation_datetime_suffix[17] = {};
-
-		if (session_creation_time) {
-			size_t strftime_ret;
-			struct tm *timeinfo;
-
-			timeinfo = localtime(session_creation_time);
-			if (!timeinfo) {
-				ret_code = LTTNG_ERR_FATAL;
-				goto end;
-			}
-			strftime_ret = strftime(creation_datetime_suffix,
-					sizeof(creation_datetime_suffix),
-				 	"-%Y%m%d-%H%M%S", timeinfo);
-			if (strftime_ret == 0) {
-				ERR("Failed to format session creation timestamp while setting default local output destination");
-				ret_code = LTTNG_ERR_FATAL;
-				goto end;
-			}
-		}
-		LTTNG_ASSERT(descriptor->name);
-		ret = snprintf(local_uri, sizeof(local_uri),
-				"file://%s/%s/%s%s",
-				absolute_home_path,
-				DEFAULT_TRACE_DIR_NAME, descriptor->name,
-				creation_datetime_suffix);
-		if (ret >= sizeof(local_uri)) {
-			ERR("Truncation occurred while setting default local output destination");
-			ret_code = LTTNG_ERR_SET_URL;
-			goto end;
-		} else if (ret < 0) {
-			PERROR("Failed to format default local output URI");
-			ret_code = LTTNG_ERR_SET_URL;
-			goto end;
-		}
-
-		uri_ret = uri_parse(local_uri, &uris);
-		if (uri_ret != 1) {
-			ret_code = LTTNG_ERR_SET_URL;
-			goto end;
-		}
-		free(descriptor->output.local);
-		descriptor->output.local = &uris[0];
-		uris = NULL;
-		break;
-	}
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-	{
-		int ret;
-		ssize_t uri_ret;
-		struct lttng_uri *control = NULL, *data = NULL;
-
-		uri_ret = uri_parse_str_urls("net://127.0.0.1", NULL, &uris);
-		if (uri_ret != 2) {
-			ret_code = LTTNG_ERR_SET_URL;
-			goto end;
-		}
-
-		control = uri_copy(&uris[0]);
-		data = uri_copy(&uris[1]);
-		if (!control || !data) {
-			free(control);
-			free(data);
-			ret_code = LTTNG_ERR_SET_URL;
-			goto end;
-		}
-
-		/* Ownership of uris is transferred. */
-		ret = network_location_set_from_lttng_uris(
-				&descriptor->output.network,
-				control, data);
-		if (ret) {
-			abort();
-			ret_code = LTTNG_ERR_SET_URL;
-			goto end;
-		}
-		break;
-	}
-	default:
-		abort();
-	}
-end:
-	free(uris);
-	return ret_code;
-}
-
-/*
- * Note that only properties that can be populated by the session daemon
- * (output destination and name) are assigned.
- */
-int lttng_session_descriptor_assign(
-		struct lttng_session_descriptor *dst,
-		const struct lttng_session_descriptor *src)
-{
-	int ret = 0;
-
-	if (dst->type != src->type) {
-		ret = -1;
-		goto end;
-	}
-	if (dst->output_type != src->output_type) {
-		ret = -1;
-		goto end;
-	}
-	ret = lttng_session_descriptor_set_session_name(dst, src->name);
-	if (ret) {
-		goto end;
-	}
-	switch (dst->output_type) {
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_LOCAL:
-		free(dst->output.local);
-		dst->output.local = uri_copy(src->output.local);
-		if (!dst->output.local) {
-			ret = -1;
-			goto end;
-		}
-		break;
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NETWORK:
-	{
-		struct lttng_uri *control_copy = NULL, *data_copy = NULL;
-
-		control_copy = uri_copy(dst->output.network.control);
-		if (!control_copy && dst->output.network.control) {
-			ret = -1;
-			goto end;
-		}
-		data_copy = uri_copy(dst->output.network.data);
-		if (!data_copy && dst->output.network.data) {
-			free(control_copy);
-			ret = -1;
-			goto end;
-		}
-		ret = network_location_set_from_lttng_uris(&dst->output.network,
-				control_copy, data_copy);
-		break;
-	}
-	case LTTNG_SESSION_DESCRIPTOR_OUTPUT_TYPE_NONE:
-		goto end;
-	}
-end:
-	return ret;
-}