uprobe: transmit binary file descritptor through lttng_payload
[lttng-tools.git] / src / bin / lttng-sessiond / cmd.h
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.h"
12 #include "lttng-sessiond.h"
13 #include "lttng/tracker.h"
14 #include "session.h"
15 #include <common/tracker.h>
16
17 struct notification_thread_handle;
18
19 /*
20 * A callback (and associated user data) that should be run after a command
21 * has been executed. No locks should be taken while executing this handler.
22 *
23 * The command's reply should not be sent until the handler has run and
24 * completed successfully. On failure, the handler's return code should
25 * be the only reply sent to the client.
26 */
27 typedef enum lttng_error_code (*completion_handler_function)(void *);
28 struct cmd_completion_handler {
29 completion_handler_function run;
30 void *data;
31 };
32
33 /*
34 * Init the command subsystem. Must be called before using any of the functions
35 * above. This is called in the main() of the session daemon.
36 */
37 void cmd_init(void);
38
39 /* Session commands */
40 enum lttng_error_code cmd_create_session(struct command_ctx *cmd_ctx, int sock,
41 struct lttng_session_descriptor **return_descriptor);
42 int cmd_destroy_session(struct ltt_session *session,
43 struct notification_thread_handle *notification_thread_handle,
44 int *sock_fd);
45
46 /* Channel commands */
47 int cmd_disable_channel(struct ltt_session *session,
48 enum lttng_domain_type domain, char *channel_name);
49 int cmd_enable_channel(struct ltt_session *session,
50 const struct lttng_domain *domain, const struct lttng_channel *attr,
51 int wpipe);
52
53 /* Process attribute tracker commands */
54 enum lttng_error_code cmd_process_attr_tracker_get_tracking_policy(
55 struct ltt_session *session,
56 enum lttng_domain_type domain,
57 enum lttng_process_attr process_attr,
58 enum lttng_tracking_policy *policy);
59 enum lttng_error_code cmd_process_attr_tracker_set_tracking_policy(
60 struct ltt_session *session,
61 enum lttng_domain_type domain,
62 enum lttng_process_attr process_attr,
63 enum lttng_tracking_policy policy);
64 enum lttng_error_code cmd_process_attr_tracker_inclusion_set_add_value(
65 struct ltt_session *session,
66 enum lttng_domain_type domain,
67 enum lttng_process_attr process_attr,
68 const struct process_attr_value *value);
69 enum lttng_error_code cmd_process_attr_tracker_inclusion_set_remove_value(
70 struct ltt_session *session,
71 enum lttng_domain_type domain,
72 enum lttng_process_attr process_attr,
73 const struct process_attr_value *value);
74 enum lttng_error_code cmd_process_attr_tracker_get_inclusion_set(
75 struct ltt_session *session,
76 enum lttng_domain_type domain,
77 enum lttng_process_attr process_attr,
78 struct lttng_process_attr_values **values);
79
80 /* Event commands */
81 int cmd_disable_event(struct ltt_session *session,
82 enum lttng_domain_type domain,
83 const char *channel_name,
84 const struct lttng_event *event);
85 int cmd_add_context(struct ltt_session *session, enum lttng_domain_type domain,
86 char *channel_name, const struct lttng_event_context *ctx, int kwpipe);
87 int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain,
88 char *channel_name, struct lttng_event *event,
89 struct lttng_filter_bytecode *bytecode);
90 int cmd_enable_event(struct ltt_session *session, const struct lttng_domain *domain,
91 char *channel_name, struct lttng_event *event,
92 char *filter_expression,
93 struct lttng_filter_bytecode *filter,
94 struct lttng_event_exclusion *exclusion,
95 int wpipe);
96
97 /* Trace session action commands */
98 int cmd_start_trace(struct ltt_session *session);
99 int cmd_stop_trace(struct ltt_session *session);
100
101 /* Consumer commands */
102 int cmd_register_consumer(struct ltt_session *session,
103 enum lttng_domain_type domain,
104 const char *sock_path, struct consumer_data *cdata);
105 int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri,
106 struct lttng_uri *uris);
107 int cmd_setup_relayd(struct ltt_session *session);
108
109 /* Listing commands */
110 ssize_t cmd_list_domains(struct ltt_session *session,
111 struct lttng_domain **domains);
112 ssize_t cmd_list_events(enum lttng_domain_type domain,
113 struct ltt_session *session, char *channel_name,
114 struct lttng_payload *payload);
115 ssize_t cmd_list_channels(enum lttng_domain_type domain,
116 struct ltt_session *session, struct lttng_channel **channels);
117 ssize_t cmd_list_domains(struct ltt_session *session,
118 struct lttng_domain **domains);
119 void cmd_list_lttng_sessions(struct lttng_session *sessions,
120 size_t session_count, uid_t uid, gid_t gid);
121 ssize_t cmd_list_tracepoint_fields(enum lttng_domain_type domain,
122 struct lttng_event_field **fields);
123 ssize_t cmd_list_tracepoints(enum lttng_domain_type domain,
124 struct lttng_event **events);
125 ssize_t cmd_snapshot_list_outputs(struct ltt_session *session,
126 struct lttng_snapshot_output **outputs);
127 ssize_t cmd_list_syscalls(struct lttng_event **events);
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 int cmd_register_trigger(struct command_ctx *cmd_ctx, int sock,
145 struct notification_thread_handle *notification_thread_handle);
146 int cmd_unregister_trigger(struct command_ctx *cmd_ctx, int sock,
147 struct notification_thread_handle *notification_thread_handle);
148
149 int cmd_rotate_session(struct ltt_session *session,
150 struct lttng_rotate_session_return *rotate_return,
151 bool quiet_rotation,
152 enum lttng_trace_chunk_command_type command);
153 int cmd_rotate_get_info(struct ltt_session *session,
154 struct lttng_rotation_get_info_return *info_return,
155 uint64_t rotate_id);
156 int cmd_rotation_set_schedule(struct ltt_session *session,
157 bool activate, enum lttng_rotation_schedule_type schedule_type,
158 uint64_t value,
159 struct notification_thread_handle *notification_thread_handle);
160
161 const struct cmd_completion_handler *cmd_pop_completion_handler(void);
162 int start_kernel_session(struct ltt_kernel_session *ksess);
163 int stop_kernel_session(struct ltt_kernel_session *ksess);
164
165 #endif /* CMD_H */
This page took 0.047171 seconds and 4 git commands to generate.