/*
- * 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.
*/
/*
#include <common/compat/socket.h>
#include <common/uri.h>
#include <common/defaults.h>
-#include <common/compat/uuid.h>
+#include <common/uuid.h>
#include <common/macros.h>
+#include <common/optional.h>
#include <arpa/inet.h>
#include <netinet/in.h>
/* 29 */
/* 30 */
LTTNG_SAVE_SESSION = 31,
- LTTNG_TRACK_PID = 32,
- LTTNG_UNTRACK_PID = 33,
- LTTNG_LIST_TRACKER_PIDS = 34,
+ LTTNG_TRACK_ID = 32,
+ LTTNG_UNTRACK_ID = 33,
+ LTTNG_LIST_TRACKER_IDS = 34,
LTTNG_SET_SESSION_SHM_PATH = 40,
LTTNG_REGENERATE_METADATA = 41,
LTTNG_REGENERATE_STATEDUMP = 42,
LTTNG_ROTATION_GET_INFO = 46,
LTTNG_ROTATION_SET_SCHEDULE = 47,
LTTNG_SESSION_LIST_ROTATION_SCHEDULES = 48,
- LTTNG_CREATE_SESSION_EXT = 49
+ LTTNG_CREATE_SESSION_EXT = 49,
+ LTTNG_CLEAR_SESSION = 50,
+ LTTNG_LIST_TRIGGERS = 51,
};
enum lttcomm_relayd_command {
RELAYD_STREAMS_SENT = 16,
/* Ask the relay to reset the metadata trace file (2.8+) */
RELAYD_RESET_METADATA = 17,
- /* Ask the relay to rotate a stream file (2.11+) */
- RELAYD_ROTATE_STREAM = 18,
- /* Rename a chunk after the rotation is completed (2.11+) */
- RELAYD_ROTATE_RENAME = 19,
- /* Check if a chunk has data pending (2.11+) */
- RELAYD_ROTATE_PENDING = 20,
- /* Create a folder on the relayd FS (2.11+) */
- RELAYD_MKDIR = 21,
+ /* Ask the relay to rotate a set of stream files (2.11+) */
+ RELAYD_ROTATE_STREAMS = 18,
+ /* Ask the relay to create a trace chunk (2.11+) */
+ RELAYD_CREATE_TRACE_CHUNK = 19,
+ /* Ask the relay to close a trace chunk (2.11+) */
+ 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. */
};
/*
*/
enum lttcomm_return_code {
LTTCOMM_CONSUMERD_SUCCESS = 0, /* Everything went fine. */
- LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 1, /* Command socket ready */
+ /*
+ * Some code paths use -1 to express an error, others
+ * negate this consumer return code. Starting codes at
+ * 100 ensures there is no mix-up between this error value
+ * and legitimate status codes.
+ */
+ LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 100, /* Command socket ready */
LTTCOMM_CONSUMERD_SUCCESS_RECV_FD, /* Success on receiving fds */
LTTCOMM_CONSUMERD_ERROR_RECV_FD, /* Error on receiving fds */
LTTCOMM_CONSUMERD_ERROR_RECV_CMD, /* Error on receiving command */
LTTCOMM_CONSUMERD_CHAN_NOT_FOUND, /* Channel not found. */
LTTCOMM_CONSUMERD_ALREADY_SET, /* Resource already set. */
LTTCOMM_CONSUMERD_ROTATION_FAIL, /* Rotation has failed. */
- LTTCOMM_CONSUMERD_ROTATE_RENAME_FAILED, /* Rotation rename has failed. */
- LTTCOMM_CONSUMERD_ROTATION_PENDING_LOCAL_FAILED, /* Rotation pending relay failed. */
- LTTCOMM_CONSUMERD_ROTATION_PENDING_RELAY_FAILED, /* Rotation pending relay failed. */
- LTTCOMM_CONSUMERD_MKDIR_FAILED, /* mkdir has failed. */
LTTCOMM_CONSUMERD_SNAPSHOT_FAILED, /* snapshot has failed. */
+ LTTCOMM_CONSUMERD_CREATE_TRACE_CHUNK_FAILED,/* Trace chunk creation failed. */
+ LTTCOMM_CONSUMERD_CLOSE_TRACE_CHUNK_FAILED, /* Trace chunk creation failed. */
+ LTTCOMM_CONSUMERD_INVALID_PARAMETERS, /* Invalid parameters. */
+ 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. */
/* MUST be last element */
LTTCOMM_NR, /* Last element */
char shm_path[PATH_MAX];
} LTTNG_PACKED set_shm_path;
struct {
- uint32_t pid;
- } LTTNG_PACKED pid_tracker;
+ uint32_t tracker_type; /* enum lttng_tracker_type */
+ uint32_t id_type; /* enum lttng_tracker_id_type */
+ union {
+ int32_t value;
+ uint32_t var_len;
+ } u;
+ /*
+ * for LTTNG_ID_STRING, followed by a variable length
+ * zero-terminated string of length "var_len", which
+ * includes the final \0.
+ */
+ } LTTNG_PACKED id_tracker;
+ struct {
+ uint32_t tracker_type; /* enum lttng_tracker_type */
+ } LTTNG_PACKED id_tracker_list;
struct {
uint32_t length;
} LTTNG_PACKED trigger;
uint32_t userspace_probe_location_len;
} LTTNG_PACKED;
+/*
+ * Command header of the reply to an LTTNG_DESTROY_SESSION command.
+ */
+struct lttcomm_session_destroy_command_header {
+ /* enum lttng_session */
+ int32_t rotation_state;
+};
+
+/*
+ * tracker command header.
+ */
+struct lttcomm_tracker_command_header {
+ uint32_t nb_tracker_id;
+} LTTNG_PACKED;
+
+struct lttcomm_tracker_id_header {
+ uint32_t type; /* enum lttng_tracker_id_type */
+ union {
+ int32_t value;
+ uint32_t var_data_len;
+ } u;
+} LTTNG_PACKED;
+
/*
* Data structure for the response from sessiond to the lttng client.
*/
struct {
uint64_t channel_key;
uint64_t session_id;
+ /* ID of the session's current trace chunk. */
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id;
char pathname[PATH_MAX];
- uint32_t uid;
- uint32_t gid;
uint64_t relayd_id;
/* nb_init_streams is the number of streams open initially. */
uint32_t nb_init_streams;
int32_t cpu; /* On which CPU this stream is assigned. */
/* Tells the consumer if the stream should be or not monitored. */
uint32_t no_monitor;
- /*
- * The archive id that was "current" at the time this
- * stream was created. This is used to determine
- * whether a rotation request was sent before or after
- * the creation of a stream.
- */
- uint64_t trace_archive_id;
} LTTNG_PACKED stream; /* Only used by Kernel. */
struct {
uint64_t net_index;
uint64_t session_id; /* Tracing session id */
char pathname[PATH_MAX]; /* Channel file path. */
char name[LTTNG_SYMBOL_NAME_LEN]; /* Channel name. */
- uint32_t uid; /* User ID of the session */
- uint32_t gid; /* Group ID ot the session */
+ /* Credentials used to open the UST buffer shared mappings. */
+ struct {
+ uint32_t uid;
+ uint32_t gid;
+ } LTTNG_PACKED buffer_credentials;
uint64_t relayd_id; /* Relayd id if apply. */
uint64_t key; /* Unique channel key. */
- unsigned char uuid[UUID_LEN]; /* uuid for ust tracer. */
+ /* ID of the session's current trace chunk. */
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id;
+ unsigned char uuid[LTTNG_UUID_LEN]; /* uuid for ust tracer. */
uint32_t chan_id; /* Channel ID on the tracer side. */
uint64_t tracefile_size; /* bytes */
uint32_t tracefile_count; /* number of tracefiles */
*/
uint32_t ust_app_uid;
int64_t blocking_timeout;
- /*
- * The archive id that was "current" at the time this
- * channel was created. This is used to determine
- * whether a rotation request was sent before or after
- * the creation of a channel.
- */
- uint64_t trace_archive_id;
char root_shm_path[PATH_MAX];
char shm_path[PATH_MAX];
} LTTNG_PACKED ask_channel;
uint64_t relayd_id; /* Relayd id if apply. */
uint64_t key;
uint64_t nb_packets_per_stream;
- /*
- * The session's current trace archive id is propagated
- * since a snapshot triggers the creation of an
- * ephemeral metadata stream.
- */
- uint64_t trace_archive_id;
} LTTNG_PACKED snapshot_channel;
struct {
uint64_t channel_key;
uint64_t session_id;
} LTTNG_PACKED regenerate_metadata;
struct {
- char pathname[PATH_MAX];
uint32_t metadata; /* This is a metadata channel. */
uint64_t relayd_id; /* Relayd id if apply. */
uint64_t key;
- uint64_t new_chunk_id;
} LTTNG_PACKED rotate_channel;
- struct {
- char old_path[LTTNG_PATH_MAX];
- char new_path[LTTNG_PATH_MAX];
- uint64_t relayd_id; /* Relayd id if apply. */
- uint64_t session_id;
- uint32_t uid;
- uint32_t gid;
- } LTTNG_PACKED rotate_rename;
struct {
uint64_t session_id;
uint64_t chunk_id;
uint64_t chunk_id;
} LTTNG_PACKED check_rotation_pending_relay;
struct {
- char path[LTTNG_PATH_MAX];
- uint64_t relayd_id; /* Relayd id if apply. */
+ /*
+ * Relayd id, if applicable (remote).
+ *
+ * A directory file descriptor referring to the chunk's
+ * output folder is transmitted if the chunk is local
+ * (relayd_id unset).
+ *
+ * `override_name` is left NULL (all-zeroes) if the
+ * chunk's name is not overridden.
+ */
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id;
+ char override_name[LTTNG_NAME_MAX];
+ uint64_t session_id;
+ uint64_t chunk_id;
+ uint64_t creation_timestamp;
+ LTTNG_OPTIONAL_COMM(struct {
+ uint32_t uid;
+ uint32_t gid;
+ } LTTNG_PACKED ) LTTNG_PACKED credentials;
+ } LTTNG_PACKED create_trace_chunk;
+ struct {
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id;
+ uint64_t session_id;
+ uint64_t chunk_id;
+ uint64_t close_timestamp;
+ /* enum lttng_trace_chunk_command_type */
+ LTTNG_OPTIONAL_COMM(uint32_t) LTTNG_PACKED close_command;
+ } LTTNG_PACKED close_trace_chunk;
+ struct {
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id;
uint64_t session_id;
- uint32_t uid;
- uint32_t gid;
- } LTTNG_PACKED mkdir;
+ uint64_t chunk_id;
+ } LTTNG_PACKED trace_chunk_exists;
+ struct {
+ lttng_uuid sessiond_uuid;
+ } LTTNG_PACKED init;
+ struct {
+ uint64_t key;
+ } LTTNG_PACKED clear_channel;
} u;
} LTTNG_PACKED;
unsigned int stream_count;
} LTTNG_PACKED;
+struct lttcomm_consumer_close_trace_chunk_reply {
+ enum lttcomm_return_code ret_code;
+ uint32_t path_length;
+ char path[];
+};
+
#ifdef HAVE_LIBLTTNG_UST_CTL
#include <lttng/ust-abi.h>
projects / lttng-tools.git / blobdiff