X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fsessiond-comm%2Fsessiond-comm.h;h=011a1290a99097c6cb36c52c84209e57e25ac265;hp=73abfe84aa41c5315120f35cb60a3b7317a10e94;hb=3c82c39ffc82422b1c506f22d9a20cac29cb7d87;hpb=80e327fa80045f6b470ac76963fc4b5d396a80a9 diff --git a/src/common/sessiond-comm/sessiond-comm.h b/src/common/sessiond-comm/sessiond-comm.h index 73abfe84a..011a1290a 100644 --- a/src/common/sessiond-comm/sessiond-comm.h +++ b/src/common/sessiond-comm/sessiond-comm.h @@ -3,18 +3,18 @@ * Julien Desfossez * Mathieu Desnoyers * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; only version 2 of the License. + * 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. * * 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 + * 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., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307, USA. + * 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. */ /* @@ -29,6 +29,16 @@ #include #include #include +#include +#include + +#include +#include +#include + +#include "inet.h" +#include "inet6.h" +#include "unix.h" /* Queue size of listen(2) */ #define LTTNG_SESSIOND_COMM_MAX_LISTEN 64 @@ -39,126 +49,119 @@ /* * Get the error code index from 0 since LTTCOMM_OK start at 1000 */ -#define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_OK) +#define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_CONSUMERD_COMMAND_SOCK_READY) enum lttcomm_sessiond_command { /* Tracer command */ - LTTNG_ADD_CONTEXT, - LTTNG_CALIBRATE, - LTTNG_DISABLE_CHANNEL, - LTTNG_DISABLE_EVENT, - LTTNG_DISABLE_ALL_EVENT, - LTTNG_ENABLE_CHANNEL, - LTTNG_ENABLE_EVENT, - LTTNG_ENABLE_ALL_EVENT, + LTTNG_ADD_CONTEXT = 1, + LTTNG_CALIBRATE = 2, + LTTNG_DISABLE_CHANNEL = 3, + LTTNG_DISABLE_EVENT = 4, + LTTNG_DISABLE_ALL_EVENT = 5, + LTTNG_ENABLE_CHANNEL = 6, + LTTNG_ENABLE_EVENT = 7, + LTTNG_ENABLE_ALL_EVENT = 8, /* Session daemon command */ - LTTNG_CREATE_SESSION, - LTTNG_DESTROY_SESSION, - LTTNG_LIST_CHANNELS, - LTTNG_LIST_DOMAINS, - LTTNG_LIST_EVENTS, - LTTNG_LIST_SESSIONS, - LTTNG_LIST_TRACEPOINTS, - LTTNG_REGISTER_CONSUMER, - LTTNG_START_TRACE, - LTTNG_STOP_TRACE, + LTTNG_CREATE_SESSION = 9, + LTTNG_DESTROY_SESSION = 10, + LTTNG_LIST_CHANNELS = 11, + LTTNG_LIST_DOMAINS = 12, + LTTNG_LIST_EVENTS = 13, + LTTNG_LIST_SESSIONS = 14, + LTTNG_LIST_TRACEPOINTS = 15, + LTTNG_REGISTER_CONSUMER = 16, + LTTNG_START_TRACE = 17, + LTTNG_STOP_TRACE = 18, + LTTNG_LIST_TRACEPOINT_FIELDS = 19, + + /* Consumer */ + LTTNG_DISABLE_CONSUMER = 20, + LTTNG_ENABLE_CONSUMER = 21, + LTTNG_SET_CONSUMER_URI = 22, + /* Relay daemon */ + RELAYD_ADD_STREAM = 23, + RELAYD_CREATE_SESSION = 24, + RELAYD_START_DATA = 25, + RELAYD_UPDATE_SYNC_INFO = 26, + RELAYD_VERSION = 27, + RELAYD_SEND_METADATA = 28, + RELAYD_CLOSE_STREAM = 29, + RELAYD_DATA_PENDING = 30, + RELAYD_QUIESCENT_CONTROL = 31, + LTTNG_ENABLE_EVENT_WITH_FILTER = 32, + LTTNG_HEALTH_CHECK = 33, + LTTNG_DATA_PENDING = 34, }; /* * lttcomm error code. */ enum lttcomm_return_code { - LTTCOMM_OK = 1000, /* Ok */ - LTTCOMM_ERR, /* Unknown Error */ - LTTCOMM_UND, /* Undefine command */ - LTTCOMM_NOT_IMPLEMENTED, /* Command not implemented */ - LTTCOMM_UNKNOWN_DOMAIN, /* Tracing domain not known */ - LTTCOMM_ALLOC_FAIL, /* Trace allocation fail */ - LTTCOMM_NO_SESSION, /* No session found */ - LTTCOMM_CREATE_DIR_FAIL, /* Create directory fail */ - LTTCOMM_SESSION_FAIL, /* Create session fail */ - LTTCOMM_START_FAIL, /* Start tracing fail */ - LTTCOMM_STOP_FAIL, /* Stop tracing fail */ - LTTCOMM_LIST_FAIL, /* Listing apps fail */ - LTTCOMM_NO_APPS, /* No traceable application */ - LTTCOMM_SESS_NOT_FOUND, /* Session name not found */ - LTTCOMM_NO_TRACE, /* No trace exist */ - LTTCOMM_FATAL, /* Session daemon had a fatal error */ - LTTCOMM_NO_TRACEABLE, /* Error for non traceable app */ - LTTCOMM_SELECT_SESS, /* Must select a session */ - LTTCOMM_EXIST_SESS, /* Session name already exist */ - LTTCOMM_NO_EVENT, /* No event found */ - LTTCOMM_CONNECT_FAIL, /* Unable to connect to unix socket */ - LTTCOMM_APP_NOT_FOUND, /* App not found in traceable app list */ - LTTCOMM_EPERM, /* Permission denied */ - LTTCOMM_KERN_NA, /* Kernel tracer unavalable */ - LTTCOMM_KERN_VERSION, /* Kernel tracer version is not compatible */ - LTTCOMM_KERN_EVENT_EXIST, /* Kernel event already exists */ - LTTCOMM_KERN_SESS_FAIL, /* Kernel create session failed */ - LTTCOMM_KERN_CHAN_FAIL, /* Kernel create channel failed */ - LTTCOMM_KERN_CHAN_NOT_FOUND, /* Kernel channel not found */ - LTTCOMM_KERN_CHAN_DISABLE_FAIL, /* Kernel disable channel failed */ - LTTCOMM_KERN_CHAN_ENABLE_FAIL, /* Kernel enable channel failed */ - LTTCOMM_KERN_CONTEXT_FAIL, /* Kernel add context failed */ - LTTCOMM_KERN_ENABLE_FAIL, /* Kernel enable event failed */ - LTTCOMM_KERN_DISABLE_FAIL, /* Kernel disable event failed */ - LTTCOMM_KERN_META_FAIL, /* Kernel open metadata failed */ - LTTCOMM_KERN_START_FAIL, /* Kernel start trace failed */ - LTTCOMM_KERN_STOP_FAIL, /* Kernel stop trace failed */ - LTTCOMM_KERN_CONSUMER_FAIL, /* Kernel consumer start failed */ - LTTCOMM_KERN_STREAM_FAIL, /* Kernel create stream failed */ - LTTCOMM_KERN_DIR_FAIL, /* Kernel trace directory creation failed */ - LTTCOMM_KERN_DIR_EXIST, /* Kernel trace directory exist */ - LTTCOMM_KERN_NO_SESSION, /* No kernel session found */ - LTTCOMM_KERN_LIST_FAIL, /* Kernel listing events failed */ - LTTCOMM_UST_CALIBRATE_FAIL, /* UST calibration failed */ - LTTCOMM_UST_VERSION, /* UST tracer version is not compatible */ - LTTCOMM_UST_SESS_FAIL, /* UST create session failed */ - LTTCOMM_UST_CHAN_EXIST, /* UST channel already exist */ - LTTCOMM_UST_CHAN_FAIL, /* UST create channel failed */ - LTTCOMM_UST_CHAN_NOT_FOUND, /* UST channel not found */ - LTTCOMM_UST_CHAN_DISABLE_FAIL, /* UST disable channel failed */ - LTTCOMM_UST_CHAN_ENABLE_FAIL, /* UST enable channel failed */ - LTTCOMM_UST_CONTEXT_FAIL, /* UST add context failed */ - LTTCOMM_UST_ENABLE_FAIL, /* UST enable event failed */ - LTTCOMM_UST_DISABLE_FAIL, /* UST disable event failed */ - LTTCOMM_UST_META_FAIL, /* UST open metadata failed */ - LTTCOMM_UST_START_FAIL, /* UST start trace failed */ - LTTCOMM_UST_STOP_FAIL, /* UST stop trace failed */ - LTTCOMM_UST_CONSUMER64_FAIL, /* 64-bit UST consumer start failed */ - LTTCOMM_UST_CONSUMER32_FAIL, /* 32-bit UST consumer start failed */ - LTTCOMM_UST_STREAM_FAIL, /* UST create stream failed */ - LTTCOMM_UST_DIR_FAIL, /* UST trace directory creation failed */ - LTTCOMM_UST_DIR_EXIST, /* UST trace directory exist */ - LTTCOMM_UST_NO_SESSION, /* No UST session found */ - LTTCOMM_UST_LIST_FAIL, /* UST listing events failed */ - LTTCOMM_UST_EVENT_EXIST, /* UST event exist */ - LTTCOMM_UST_EVENT_NOT_FOUND, /* UST event not found */ - LTTCOMM_UST_CONTEXT_EXIST, /* UST context exist */ - LTTCOMM_UST_CONTEXT_INVAL, /* UST context invalid */ - LTTCOMM_NEED_ROOT_SESSIOND, /* root sessiond is needed */ - LTTCOMM_TRACE_ALREADY_STARTED, /* Tracing already started */ - LTTCOMM_TRACE_ALREADY_STOPPED, /* Tracing already stopped */ - - CONSUMERD_COMMAND_SOCK_READY, /* when consumerd command socket ready */ - CONSUMERD_SUCCESS_RECV_FD, /* success on receiving fds */ - CONSUMERD_ERROR_RECV_FD, /* error on receiving fds */ - CONSUMERD_ERROR_RECV_CMD, /* error on receiving command */ - CONSUMERD_POLL_ERROR, /* Error in polling thread in kconsumerd */ - CONSUMERD_POLL_NVAL, /* Poll on closed fd */ - CONSUMERD_POLL_HUP, /* All fds have hungup */ - CONSUMERD_EXIT_SUCCESS, /* kconsumerd exiting normally */ - CONSUMERD_EXIT_FAILURE, /* kconsumerd exiting on error */ - CONSUMERD_OUTFD_ERROR, /* error opening the tracefile */ - CONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */ - CONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */ - CONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */ - CONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */ + LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 1, /* 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_POLL_ERROR, /* Error in polling thread */ + LTTCOMM_CONSUMERD_POLL_NVAL, /* Poll on closed fd */ + LTTCOMM_CONSUMERD_POLL_HUP, /* All fds have hungup */ + LTTCOMM_CONSUMERD_EXIT_SUCCESS, /* Consumerd exiting normally */ + LTTCOMM_CONSUMERD_EXIT_FAILURE, /* Consumerd exiting on error */ + LTTCOMM_CONSUMERD_OUTFD_ERROR, /* Error opening the tracefile */ + LTTCOMM_CONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */ + LTTCOMM_CONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */ + LTTCOMM_CONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */ + LTTCOMM_CONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */ /* MUST be last element */ LTTCOMM_NR, /* Last element */ }; +/* lttng socket protocol. */ +enum lttcomm_sock_proto { + LTTCOMM_SOCK_UDP, + LTTCOMM_SOCK_TCP, +}; + +/* + * Index in the net_families array below. Please keep in sync! + */ +enum lttcomm_sock_domain { + LTTCOMM_INET = 0, + LTTCOMM_INET6 = 1, +}; + +struct lttcomm_sockaddr { + enum lttcomm_sock_domain type; + union { + struct sockaddr_in sin; + struct sockaddr_in6 sin6; + } addr; +}; + +struct lttcomm_sock { + int fd; + enum lttcomm_sock_proto proto; + struct lttcomm_sockaddr sockaddr; + const struct lttcomm_proto_ops *ops; +}; + +struct lttcomm_net_family { + int family; + int (*create) (struct lttcomm_sock *sock, int type, int proto); +}; + +struct lttcomm_proto_ops { + int (*bind) (struct lttcomm_sock *sock); + int (*close) (struct lttcomm_sock *sock); + int (*connect) (struct lttcomm_sock *sock); + struct lttcomm_sock *(*accept) (struct lttcomm_sock *sock); + int (*listen) (struct lttcomm_sock *sock, int backlog); + ssize_t (*recvmsg) (struct lttcomm_sock *sock, void *buf, size_t len, + int flags); + ssize_t (*sendmsg) (struct lttcomm_sock *sock, void *buf, size_t len, + int flags); +}; + /* * Data structure received from lttng client to session daemon. */ @@ -168,13 +171,15 @@ struct lttcomm_session_msg { struct lttng_domain domain; union { struct { - char channel_name[NAME_MAX]; + char channel_name[LTTNG_SYMBOL_NAME_LEN]; char name[NAME_MAX]; } disable; /* Event data */ struct { - char channel_name[NAME_MAX]; + char channel_name[LTTNG_SYMBOL_NAME_LEN]; struct lttng_event event; + /* Length of following bytecode for filter. */ + uint32_t bytecode_len; } enable; /* Create channel */ struct { @@ -182,8 +187,7 @@ struct lttcomm_session_msg { } channel; /* Context */ struct { - char channel_name[NAME_MAX]; - char event_name[NAME_MAX]; + char channel_name[LTTNG_SYMBOL_NAME_LEN]; struct lttng_event_context ctx; } context; /* Use by register_consumer */ @@ -192,12 +196,33 @@ struct lttcomm_session_msg { } reg; /* List */ struct { - char channel_name[NAME_MAX]; + char channel_name[LTTNG_SYMBOL_NAME_LEN]; } list; struct lttng_calibrate calibrate; + /* Used by the set_consumer_url and used by create_session also call */ + struct { + /* Number of lttng_uri following */ + uint32_t size; + } uri; } u; }; +#define LTTNG_FILTER_MAX_LEN 65536 + +/* + * Filter bytecode data. The reloc table is located at the end of the + * bytecode. It is made of tuples: (uint16_t, var. len. string). It + * starts at reloc_table_offset. + */ +#define LTTNG_FILTER_PADDING 32 +struct lttng_filter_bytecode { + uint32_t len; /* len of data */ + uint32_t reloc_table_offset; + uint64_t seqnum; + char padding[LTTNG_FILTER_PADDING]; + char data[0]; +}; + /* * Data structure for the response from sessiond to the lttng client. */ @@ -210,6 +235,15 @@ struct lttcomm_lttng_msg { char payload[]; }; +struct lttcomm_health_msg { + uint32_t component; + uint32_t cmd; +}; + +struct lttcomm_health_data { + uint32_t ret_code; +}; + /* * lttcomm_consumer_msg is the message sent from sessiond to consumerd * to either add a channel, add a stream, update a stream, or stop @@ -223,6 +257,9 @@ struct lttcomm_consumer_msg { uint64_t max_sb_size; /* the subbuffer size for this channel */ /* shm_fd and wait_fd are sent as ancillary data */ uint64_t mmap_len; + /* nb_init_streams is the number of streams open initially. */ + unsigned int nb_init_streams; + char name[LTTNG_SYMBOL_NAME_LEN]; } channel; struct { int channel_key; @@ -234,7 +271,23 @@ struct lttcomm_consumer_msg { uid_t uid; /* User ID owning the session */ gid_t gid; /* Group ID owning the session */ char path_name[PATH_MAX]; + int net_index; + unsigned int metadata_flag; + char name[DEFAULT_STREAM_NAME_LEN]; /* Name string of the stream */ + uint64_t session_id; /* Tracing session id of the stream */ } stream; + struct { + int net_index; + enum lttng_stream_type type; + /* Open socket to the relayd */ + struct lttcomm_sock sock; + } relayd_sock; + struct { + uint64_t net_seq_idx; + } destroy_relayd; + struct { + uint64_t session_id; + } data_pending; } u; }; @@ -279,25 +332,19 @@ struct lttcomm_ust_reply { #endif /* HAVE_LIBLTTNG_UST_CTL */ -extern int lttcomm_create_unix_sock(const char *pathname); -extern int lttcomm_connect_unix_sock(const char *pathname); -extern int lttcomm_accept_unix_sock(int sock); -extern int lttcomm_listen_unix_sock(int sock); -extern int lttcomm_close_unix_sock(int sock); - -/* Send a message accompanied by fd(s) over a unix socket. */ -extern ssize_t lttcomm_send_fds_unix_sock(int sock, int *fds, size_t nb_fd); -/* Recv a message accompanied by fd(s) from a unix socket */ -extern ssize_t lttcomm_recv_fds_unix_sock(int sock, int *fds, size_t nb_fd); - -extern ssize_t lttcomm_recv_unix_sock(int sock, void *buf, size_t len); -extern ssize_t lttcomm_send_unix_sock(int sock, void *buf, size_t len); +extern const char *lttcomm_get_readable_code(enum lttcomm_return_code code); -extern ssize_t lttcomm_send_creds_unix_sock(int sock, void *buf, size_t len); -extern ssize_t lttcomm_recv_creds_unix_sock(int sock, void *buf, size_t len, - lttng_sock_cred *creds); +extern int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr, + const char *ip, unsigned int port); +extern int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr, + const char *ip, unsigned int port); -extern const char *lttcomm_get_readable_code(enum lttcomm_return_code code); -extern int lttcomm_setsockopt_creds_unix_sock(int sock); +extern struct lttcomm_sock *lttcomm_alloc_sock(enum lttcomm_sock_proto proto); +extern int lttcomm_create_sock(struct lttcomm_sock *sock); +extern struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri); +extern void lttcomm_destroy_sock(struct lttcomm_sock *sock); +extern struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src); +extern void lttcomm_copy_sock(struct lttcomm_sock *dst, + struct lttcomm_sock *src); #endif /* _LTTNG_SESSIOND_COMM_H */