[lttng-tools.git] / src / bin / lttng-sessiond / cmd.hpp

/*
 * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 */

#ifndef CMD_H
#define CMD_H

#include "context.hpp"
#include "lttng-sessiond.hpp"
#include "lttng/tracker.h"
#include "session.hpp"
#include <common/tracker.hpp>

struct notification_thread_handle;
struct lttng_dynamic_buffer;

/*
 * A callback (and associated user data) that should be run after a command
 * has been executed. No locks should be taken while executing this handler.
 *
 * The command's reply should not be sent until the handler has run and
 * completed successfully. On failure, the handler's return code should
 * be the only reply sent to the client.
 */
using completion_handler_function = enum lttng_error_code (*)(void *);
struct cmd_completion_handler {
	completion_handler_function run;
	void *data;
};

/*
 * Init the command subsystem. Must be called before using any of the functions
 * above. This is called in the main() of the session daemon.
 */
void cmd_init(void);

/* Session commands */
enum lttng_error_code cmd_create_session(struct command_ctx *cmd_ctx, int sock,
		struct lttng_session_descriptor **return_descriptor);
int cmd_destroy_session(struct ltt_session *session, int *sock_fd);

/* Channel commands */
int cmd_disable_channel(struct ltt_session *session,
		enum lttng_domain_type domain, char *channel_name);
int cmd_enable_channel(struct command_ctx *cmd_ctx, int sock, int wpipe);

/* Process attribute tracker commands */
enum lttng_error_code cmd_process_attr_tracker_get_tracking_policy(
		struct ltt_session *session,
		enum lttng_domain_type domain,
		enum lttng_process_attr process_attr,
		enum lttng_tracking_policy *policy);
enum lttng_error_code cmd_process_attr_tracker_set_tracking_policy(
		struct ltt_session *session,
		enum lttng_domain_type domain,
		enum lttng_process_attr process_attr,
		enum lttng_tracking_policy policy);
enum lttng_error_code cmd_process_attr_tracker_inclusion_set_add_value(
		struct ltt_session *session,
		enum lttng_domain_type domain,
		enum lttng_process_attr process_attr,
		const struct process_attr_value *value);
enum lttng_error_code cmd_process_attr_tracker_inclusion_set_remove_value(
		struct ltt_session *session,
		enum lttng_domain_type domain,
		enum lttng_process_attr process_attr,
		const struct process_attr_value *value);
enum lttng_error_code cmd_process_attr_tracker_get_inclusion_set(
		struct ltt_session *session,
		enum lttng_domain_type domain,
		enum lttng_process_attr process_attr,
		struct lttng_process_attr_values **values);

/* Event commands */
int cmd_disable_event(struct command_ctx *cmd_ctx,
		struct lttng_event *event,
		char *filter_expression,
		struct lttng_bytecode *filter,
		struct lttng_event_exclusion *exclusion);
int cmd_add_context(struct command_ctx *cmd_ctx,
		const struct lttng_event_context *event_context,
		int kwpipe);
int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain,
		char *channel_name, struct lttng_event *event,
		struct lttng_bytecode *bytecode);
int cmd_enable_event(struct command_ctx *cmd_ctx,
		struct lttng_event *event,
		char *filter_expression,
		struct lttng_event_exclusion *exclusion,
		struct lttng_bytecode *bytecode,
		int wpipe);

/* Trace session action commands */
int cmd_start_trace(struct ltt_session *session);
int cmd_stop_trace(struct ltt_session *session);

/* Consumer commands */
int cmd_register_consumer(struct ltt_session *session,
		enum lttng_domain_type domain,
		const char *sock_path, struct consumer_data *cdata);
int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri,
		struct lttng_uri *uris);
int cmd_setup_relayd(struct ltt_session *session);

/* Listing commands */
ssize_t cmd_list_domains(struct ltt_session *session,
		struct lttng_domain **domains);
enum lttng_error_code cmd_list_events(enum lttng_domain_type domain,
		struct ltt_session *session,
		char *channel_name,
		struct lttng_payload *payload);
enum lttng_error_code cmd_list_channels(enum lttng_domain_type domain,
		struct ltt_session *session,
		struct lttng_payload *payload);
void cmd_list_lttng_sessions(struct lttng_session *sessions,
		size_t session_count, uid_t uid, gid_t gid);
enum lttng_error_code cmd_list_tracepoint_fields(enum lttng_domain_type domain,
		struct lttng_payload *reply);
enum lttng_error_code cmd_list_tracepoints(enum lttng_domain_type domain,
		struct lttng_payload *reply_payload);
ssize_t cmd_snapshot_list_outputs(struct ltt_session *session,
		struct lttng_snapshot_output **outputs);
enum lttng_error_code cmd_list_syscalls(
		struct lttng_payload *reply_payload);

int cmd_data_pending(struct ltt_session *session);

/* Snapshot */
int cmd_snapshot_add_output(struct ltt_session *session,
		const struct lttng_snapshot_output *output, uint32_t *id);
int cmd_snapshot_del_output(struct ltt_session *session,
		const struct lttng_snapshot_output *output);
int cmd_snapshot_record(struct ltt_session *session,
		const struct lttng_snapshot_output *output, int wait);

int cmd_set_session_shm_path(struct ltt_session *session,
		const char *shm_path);
int cmd_regenerate_metadata(struct ltt_session *session);
int cmd_regenerate_statedump(struct ltt_session *session);

enum lttng_error_code cmd_register_trigger(
		const struct lttng_credentials *cmd_creds,
		struct lttng_trigger *trigger,
		bool is_anonymous_trigger,
		struct notification_thread_handle *notification_thread_handle,
		struct lttng_trigger **return_trigger);
enum lttng_error_code cmd_unregister_trigger(
		const struct lttng_credentials *cmd_creds,
		const struct lttng_trigger *trigger,
		struct notification_thread_handle *notification_thread_handle);

enum lttng_error_code cmd_list_triggers(struct command_ctx *cmd_ctx,
		struct notification_thread_handle *notification_thread_handle,
		struct lttng_triggers **return_triggers);
enum lttng_error_code cmd_execute_error_query(const struct lttng_credentials *cmd_creds,
		const struct lttng_error_query *query,
		struct lttng_error_query_results **_results,
		struct notification_thread_handle *notification_thread);

int cmd_rotate_session(struct ltt_session *session,
		struct lttng_rotate_session_return *rotate_return,
		bool quiet_rotation,
		enum lttng_trace_chunk_command_type command);
int cmd_rotate_get_info(struct ltt_session *session,
		struct lttng_rotation_get_info_return *info_return,
		uint64_t rotate_id);
int cmd_rotation_set_schedule(struct ltt_session *session,
		bool activate, enum lttng_rotation_schedule_type schedule_type,
		uint64_t value);

const struct cmd_completion_handler *cmd_pop_completion_handler(void);
int start_kernel_session(struct ltt_kernel_session *ksess);
int stop_kernel_session(struct ltt_kernel_session *ksess);

#endif /* CMD_H */
Commit	Line	Data
	1	/*
	2	* Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
	3	*
	4	* SPDX-License-Identifier: GPL-2.0-only
	5	*
	6	*/
	7
	8	#ifndef CMD_H
	9	#define CMD_H
	10
	11	#include "context.hpp"
	12	#include "lttng-sessiond.hpp"
	13	#include "lttng/tracker.h"
	14	#include "session.hpp"
	15	#include <common/tracker.hpp>
	16
	17	struct notification_thread_handle;
	18	struct lttng_dynamic_buffer;
	19
	20	/*
	21	* A callback (and associated user data) that should be run after a command
	22	* has been executed. No locks should be taken while executing this handler.
	23	*
	24	* The command's reply should not be sent until the handler has run and
	25	* completed successfully. On failure, the handler's return code should
	26	* be the only reply sent to the client.
	27	*/
	28	using completion_handler_function = enum lttng_error_code ()(void );
	29	struct cmd_completion_handler {
	30	completion_handler_function run;
	31	void *data;
	32	};
	33
	34	/*
	35	* Init the command subsystem. Must be called before using any of the functions
	36	* above. This is called in the main() of the session daemon.
	37	*/
	38	void cmd_init(void);
	39
	40	/* Session commands */
	41	enum lttng_error_code cmd_create_session(struct command_ctx *cmd_ctx, int sock,
	42	struct lttng_session_descriptor **return_descriptor);
	43	int cmd_destroy_session(struct ltt_session session, int sock_fd);
	44
	45	/* Channel commands */
	46	int cmd_disable_channel(struct ltt_session *session,
	47	enum lttng_domain_type domain, char *channel_name);
	48	int cmd_enable_channel(struct command_ctx *cmd_ctx, int sock, int wpipe);
	49
	50	/* Process attribute tracker commands */
	51	enum lttng_error_code cmd_process_attr_tracker_get_tracking_policy(
	52	struct ltt_session *session,
	53	enum lttng_domain_type domain,
	54	enum lttng_process_attr process_attr,
	55	enum lttng_tracking_policy *policy);
	56	enum lttng_error_code cmd_process_attr_tracker_set_tracking_policy(
	57	struct ltt_session *session,
	58	enum lttng_domain_type domain,
	59	enum lttng_process_attr process_attr,
	60	enum lttng_tracking_policy policy);
	61	enum lttng_error_code cmd_process_attr_tracker_inclusion_set_add_value(
	62	struct ltt_session *session,
	63	enum lttng_domain_type domain,
	64	enum lttng_process_attr process_attr,
	65	const struct process_attr_value *value);
	66	enum lttng_error_code cmd_process_attr_tracker_inclusion_set_remove_value(
	67	struct ltt_session *session,
	68	enum lttng_domain_type domain,
	69	enum lttng_process_attr process_attr,
	70	const struct process_attr_value *value);
	71	enum lttng_error_code cmd_process_attr_tracker_get_inclusion_set(
	72	struct ltt_session *session,
	73	enum lttng_domain_type domain,
	74	enum lttng_process_attr process_attr,
	75	struct lttng_process_attr_values **values);
	76
	77	/* Event commands */
	78	int cmd_disable_event(struct command_ctx *cmd_ctx,
	79	struct lttng_event *event,
	80	char *filter_expression,
	81	struct lttng_bytecode *filter,
	82	struct lttng_event_exclusion *exclusion);
	83	int cmd_add_context(struct command_ctx *cmd_ctx,
	84	const struct lttng_event_context *event_context,
	85	int kwpipe);
	86	int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain,
	87	char channel_name, struct lttng_event event,
	88	struct lttng_bytecode *bytecode);
	89	int cmd_enable_event(struct command_ctx *cmd_ctx,
	90	struct lttng_event *event,
	91	char *filter_expression,
	92	struct lttng_event_exclusion *exclusion,
	93	struct lttng_bytecode *bytecode,
	94	int wpipe);
	95
	96	/* Trace session action commands */
	97	int cmd_start_trace(struct ltt_session *session);
	98	int cmd_stop_trace(struct ltt_session *session);
	99
	100	/* Consumer commands */
	101	int cmd_register_consumer(struct ltt_session *session,
	102	enum lttng_domain_type domain,
	103	const char sock_path, struct consumer_data cdata);
	104	int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri,
	105	struct lttng_uri *uris);
	106	int cmd_setup_relayd(struct ltt_session *session);
	107
	108	/* Listing commands */
	109	ssize_t cmd_list_domains(struct ltt_session *session,
	110	struct lttng_domain **domains);
	111	enum lttng_error_code cmd_list_events(enum lttng_domain_type domain,
	112	struct ltt_session *session,
	113	char *channel_name,
	114	struct lttng_payload *payload);
	115	enum lttng_error_code cmd_list_channels(enum lttng_domain_type domain,
	116	struct ltt_session *session,
	117	struct lttng_payload *payload);
	118	void cmd_list_lttng_sessions(struct lttng_session *sessions,
	119	size_t session_count, uid_t uid, gid_t gid);
	120	enum lttng_error_code cmd_list_tracepoint_fields(enum lttng_domain_type domain,
	121	struct lttng_payload *reply);
	122	enum lttng_error_code cmd_list_tracepoints(enum lttng_domain_type domain,
	123	struct lttng_payload *reply_payload);
	124	ssize_t cmd_snapshot_list_outputs(struct ltt_session *session,
	125	struct lttng_snapshot_output **outputs);
	126	enum lttng_error_code cmd_list_syscalls(
	127	struct lttng_payload *reply_payload);
	128
	129	int cmd_data_pending(struct ltt_session *session);
	130
	131	/* Snapshot */
	132	int cmd_snapshot_add_output(struct ltt_session *session,
	133	const struct lttng_snapshot_output output, uint32_t id);
	134	int cmd_snapshot_del_output(struct ltt_session *session,
	135	const struct lttng_snapshot_output *output);
	136	int cmd_snapshot_record(struct ltt_session *session,
	137	const struct lttng_snapshot_output *output, int wait);
	138
	139	int cmd_set_session_shm_path(struct ltt_session *session,
	140	const char *shm_path);
	141	int cmd_regenerate_metadata(struct ltt_session *session);
	142	int cmd_regenerate_statedump(struct ltt_session *session);
	143
	144	enum lttng_error_code cmd_register_trigger(
	145	const struct lttng_credentials *cmd_creds,
	146	struct lttng_trigger *trigger,
	147	bool is_anonymous_trigger,
	148	struct notification_thread_handle *notification_thread_handle,
	149	struct lttng_trigger **return_trigger);
	150	enum lttng_error_code cmd_unregister_trigger(
	151	const struct lttng_credentials *cmd_creds,
	152	const struct lttng_trigger *trigger,
	153	struct notification_thread_handle *notification_thread_handle);
	154
	155	enum lttng_error_code cmd_list_triggers(struct command_ctx *cmd_ctx,
	156	struct notification_thread_handle *notification_thread_handle,
	157	struct lttng_triggers **return_triggers);
	158	enum lttng_error_code cmd_execute_error_query(const struct lttng_credentials *cmd_creds,
	159	const struct lttng_error_query *query,
	160	struct lttng_error_query_results **_results,
	161	struct notification_thread_handle *notification_thread);
	162
	163	int cmd_rotate_session(struct ltt_session *session,
	164	struct lttng_rotate_session_return *rotate_return,
	165	bool quiet_rotation,
	166	enum lttng_trace_chunk_command_type command);
	167	int cmd_rotate_get_info(struct ltt_session *session,
	168	struct lttng_rotation_get_info_return *info_return,
	169	uint64_t rotate_id);
	170	int cmd_rotation_set_schedule(struct ltt_session *session,
	171	bool activate, enum lttng_rotation_schedule_type schedule_type,
	172	uint64_t value);
	173
	174	const struct cmd_completion_handler *cmd_pop_completion_handler(void);
	175	int start_kernel_session(struct ltt_kernel_session *ksess);
	176	int stop_kernel_session(struct ltt_kernel_session *ksess);
	177
	178	#endif /* CMD_H */