/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- * Julien Desfossez <julien.desfossez@polymtl.ca>
- * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
#define LTTNG_SESSIOND_COMM_MAX_LISTEN 64
/* Maximum number of FDs that can be sent over a Unix socket */
-#define LTTCOMM_MAX_SEND_FDS 4
+#if defined(__linux__)
+/* Based on the kernel's SCM_MAX_FD which is 253 since 2.6.38 (255 before) */
+#define LTTCOMM_MAX_SEND_FDS 253
+#else
+#define LTTCOMM_MAX_SEND_FDS 16
+#endif
/*
* Get the error code index from 0 since LTTCOMM_OK start at 1000
enum lttcomm_sessiond_command {
/* Tracer command */
- LTTNG_ADD_CONTEXT = 0,
+ LTTNG_ADD_CONTEXT = 0,
/* LTTNG_CALIBRATE used to be here */
- LTTNG_DISABLE_CHANNEL = 2,
- LTTNG_DISABLE_EVENT = 3,
- LTTNG_LIST_SYSCALLS = 4,
- LTTNG_ENABLE_CHANNEL = 5,
- LTTNG_ENABLE_EVENT = 6,
+ LTTNG_DISABLE_CHANNEL = 2,
+ LTTNG_DISABLE_EVENT = 3,
+ LTTNG_LIST_SYSCALLS = 4,
+ LTTNG_ENABLE_CHANNEL = 5,
+ LTTNG_ENABLE_EVENT = 6,
/* 7 */
/* Session daemon command */
/* 8 */
- LTTNG_DESTROY_SESSION = 9,
- LTTNG_LIST_CHANNELS = 10,
- LTTNG_LIST_DOMAINS = 11,
- LTTNG_LIST_EVENTS = 12,
- LTTNG_LIST_SESSIONS = 13,
- LTTNG_LIST_TRACEPOINTS = 14,
- LTTNG_REGISTER_CONSUMER = 15,
- LTTNG_START_TRACE = 16,
- LTTNG_STOP_TRACE = 17,
- LTTNG_LIST_TRACEPOINT_FIELDS = 18,
+ LTTNG_DESTROY_SESSION = 9,
+ LTTNG_LIST_CHANNELS = 10,
+ LTTNG_LIST_DOMAINS = 11,
+ LTTNG_LIST_EVENTS = 12,
+ LTTNG_LIST_SESSIONS = 13,
+ LTTNG_LIST_TRACEPOINTS = 14,
+ LTTNG_REGISTER_CONSUMER = 15,
+ LTTNG_START_TRACE = 16,
+ LTTNG_STOP_TRACE = 17,
+ LTTNG_LIST_TRACEPOINT_FIELDS = 18,
/* Consumer */
- LTTNG_DISABLE_CONSUMER = 19,
- LTTNG_ENABLE_CONSUMER = 20,
- LTTNG_SET_CONSUMER_URI = 21,
+ LTTNG_DISABLE_CONSUMER = 19,
+ LTTNG_ENABLE_CONSUMER = 20,
+ LTTNG_SET_CONSUMER_URI = 21,
/* 22 */
/* 23 */
- LTTNG_DATA_PENDING = 24,
- LTTNG_SNAPSHOT_ADD_OUTPUT = 25,
- LTTNG_SNAPSHOT_DEL_OUTPUT = 26,
- LTTNG_SNAPSHOT_LIST_OUTPUT = 27,
- LTTNG_SNAPSHOT_RECORD = 28,
+ LTTNG_DATA_PENDING = 24,
+ LTTNG_SNAPSHOT_ADD_OUTPUT = 25,
+ LTTNG_SNAPSHOT_DEL_OUTPUT = 26,
+ LTTNG_SNAPSHOT_LIST_OUTPUT = 27,
+ LTTNG_SNAPSHOT_RECORD = 28,
/* 29 */
/* 30 */
- LTTNG_SAVE_SESSION = 31,
- LTTNG_TRACK_PID = 32,
- LTTNG_UNTRACK_PID = 33,
- LTTNG_LIST_TRACKER_PIDS = 34,
- LTTNG_SET_SESSION_SHM_PATH = 40,
- LTTNG_REGENERATE_METADATA = 41,
- LTTNG_REGENERATE_STATEDUMP = 42,
- LTTNG_REGISTER_TRIGGER = 43,
- LTTNG_UNREGISTER_TRIGGER = 44,
- LTTNG_ROTATE_SESSION = 45,
- LTTNG_ROTATION_GET_INFO = 46,
- LTTNG_ROTATION_SET_SCHEDULE = 47,
- LTTNG_SESSION_LIST_ROTATION_SCHEDULES = 48,
- LTTNG_CREATE_SESSION_EXT = 49,
- LTTNG_CLEAR_SESSION = 50,
+ LTTNG_SAVE_SESSION = 31,
+ LTTNG_PROCESS_ATTR_TRACKER_ADD_INCLUDE_VALUE = 32,
+ LTTNG_PROCESS_ATTR_TRACKER_REMOVE_INCLUDE_VALUE = 33,
+ LTTNG_PROCESS_ATTR_TRACKER_GET_POLICY = 34,
+ LTTNG_PROCESS_ATTR_TRACKER_SET_POLICY = 35,
+ LTTNG_PROCESS_ATTR_TRACKER_GET_INCLUSION_SET = 36,
+ LTTNG_SET_SESSION_SHM_PATH = 40,
+ LTTNG_REGENERATE_METADATA = 41,
+ LTTNG_REGENERATE_STATEDUMP = 42,
+ LTTNG_REGISTER_TRIGGER = 43,
+ LTTNG_UNREGISTER_TRIGGER = 44,
+ LTTNG_ROTATE_SESSION = 45,
+ LTTNG_ROTATION_GET_INFO = 46,
+ LTTNG_ROTATION_SET_SCHEDULE = 47,
+ LTTNG_SESSION_LIST_ROTATION_SCHEDULES = 48,
+ LTTNG_CREATE_SESSION_EXT = 49,
+ LTTNG_CLEAR_SESSION = 50,
};
enum lttcomm_relayd_command {
RELAYD_CLOSE_TRACE_CHUNK = 20,
/* Ask the relay whether a trace chunk exists (2.11+) */
RELAYD_TRACE_CHUNK_EXISTS = 21,
+ /* Get the current configuration of a relayd peer (2.12+) */
+ RELAYD_GET_CONFIGURATION = 22,
+
+ /* Feature branch specific commands start at 10000. */
};
/*
LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL, /* Trace chunk exists on consumer daemon. */
LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE,/* Trace chunk exists on relay daemon. */
LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK, /* Unknown trace chunk. */
+ LTTCOMM_CONSUMERD_RELAYD_CLEAR_DISALLOWED, /* Relayd does not accept clear command. */
+ LTTCOMM_CONSUMERD_UNKNOWN_ERROR, /* Unknown error. */
/* MUST be last element */
LTTCOMM_NR, /* Last element */
size_t len, int flags);
};
+struct process_attr_integral_value_comm {
+ union {
+ int64_t _signed;
+ uint64_t _unsigned;
+ } u;
+} LTTNG_PACKED;
+
/*
* Data structure received from lttng client to session daemon.
*/
/* Event data */
struct {
char channel_name[LTTNG_SYMBOL_NAME_LEN];
- struct lttng_event event LTTNG_PACKED;
+ struct lttng_event event;
/* Length of following filter expression. */
uint32_t expression_len;
/* Length of following bytecode for filter. */
} LTTNG_PACKED enable;
struct {
char channel_name[LTTNG_SYMBOL_NAME_LEN];
- struct lttng_event event LTTNG_PACKED;
+ struct lttng_event event;
/* Length of following filter expression. */
uint32_t expression_len;
/* Length of following bytecode for filter. */
} LTTNG_PACKED disable;
/* Create channel */
struct {
- struct lttng_channel chan LTTNG_PACKED;
- /* struct lttng_channel_extended is already packed. */
+ struct lttng_channel chan;
struct lttng_channel_extended extended;
} LTTNG_PACKED channel;
/* Context */
struct {
char channel_name[LTTNG_SYMBOL_NAME_LEN];
- struct lttng_event_context ctx LTTNG_PACKED;
+ struct lttng_event_context ctx;
uint32_t provider_name_len;
uint32_t context_name_len;
} LTTNG_PACKED context;
uint32_t size;
} LTTNG_PACKED uri;
struct {
- struct lttng_snapshot_output output LTTNG_PACKED;
+ struct lttng_snapshot_output output;
} LTTNG_PACKED snapshot_output;
struct {
uint32_t wait;
- struct lttng_snapshot_output output LTTNG_PACKED;
+ struct lttng_snapshot_output output;
} LTTNG_PACKED snapshot_record;
struct {
uint32_t nb_uri;
unsigned int timer_interval; /* usec */
} LTTNG_PACKED session_live;
struct {
- struct lttng_save_session_attr attr; /* struct already packed */
+ struct lttng_save_session_attr attr;
} LTTNG_PACKED save_session;
struct {
char shm_path[PATH_MAX];
} LTTNG_PACKED set_shm_path;
struct {
- uint32_t pid;
- } LTTNG_PACKED pid_tracker;
+ /* enum lttng_process_attr */
+ int32_t process_attr;
+ /* enum lttng_process_attr_value_type */
+ int32_t value_type;
+
+ struct process_attr_integral_value_comm integral_value;
+ /*
+ * For user/group names, a variable length,
+ * zero-terminated, string of length 'name_len'
+ * (including the terminator) follows.
+ *
+ * integral_value should not be used in those cases.
+ */
+ uint32_t name_len;
+ } LTTNG_PACKED process_attr_tracker_add_remove_include_value;
+ struct {
+ /* enum lttng_process_attr */
+ int32_t process_attr;
+ } LTTNG_PACKED process_attr_tracker_get_inclusion_set;
+ struct {
+ /* enum lttng_process_attr */
+ int32_t process_attr;
+ } LTTNG_PACKED process_attr_tracker_get_tracking_policy;
+ struct {
+ /* enum lttng_process_attr */
+ int32_t process_attr;
+ /* enum lttng_tracking_policy */
+ int32_t tracking_policy;
+ } LTTNG_PACKED process_attr_tracker_set_tracking_policy;
struct {
uint32_t length;
} LTTNG_PACKED trigger;
/* An lttng_session_descriptor follows. */
} LTTNG_PACKED create_session;
} u;
+ /* Count of fds sent. */
+ uint32_t fd_count;
} LTTNG_PACKED;
#define LTTNG_FILTER_MAX_LEN 65536
int32_t rotation_state;
};
+/*
+ * tracker command header.
+ */
+struct lttcomm_tracker_command_header {
+ uint32_t nb_tracker_id;
+} LTTNG_PACKED;
+
/*
* Data structure for the response from sessiond to the lttng client.
*/
uint32_t pid; /* pid_t */
uint32_t cmd_header_size;
uint32_t data_size;
+ uint32_t fd_count;
} LTTNG_PACKED;
struct lttcomm_lttng_output_id {
uint32_t monitor;
/* timer to check the streams usage in live mode (usec). */
unsigned int live_timer_interval;
+ /* is part of a live session */
+ uint8_t is_live;
/* timer to sample a channel's positions (usec). */
unsigned int monitor_timer_interval;
} LTTNG_PACKED channel; /* Only used by Kernel. */
uint32_t switch_timer_interval; /* usec */
uint32_t read_timer_interval; /* usec */
unsigned int live_timer_interval; /* usec */
+ uint8_t is_live; /* is part of a live session */
uint32_t monitor_timer_interval; /* usec */
int32_t output; /* splice, mmap */
int32_t type; /* metadata or per_cpu */
struct {
lttng_uuid sessiond_uuid;
} LTTNG_PACKED init;
+ struct {
+ uint64_t key;
+ } LTTNG_PACKED clear_channel;
+ struct {
+ uint64_t key;
+ } LTTNG_PACKED open_channel_packets;
} u;
} LTTNG_PACKED;
projects / lttng-tools.git / blobdiff