Add handling of the command LTTNG_ENABLE_EVENT_WITH_EXCLUSION. The handling of the command is the same as command LTTNG_ENABLE_EVENT, as the new command is just an extension.
If the command data shows that exclusions and/or filter data will be following the command structure, read those from the incoming socket, then forward the filter and exclusion data to cmd_enable_event(). Signed-off-by: JP Ikaheimonen <[email protected]> --- src/bin/lttng-sessiond/main.c | 69 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 66 insertions(+), 3 deletions(-) diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c index 71e1a9b..ab7d49b 100644 --- a/src/bin/lttng-sessiond/main.c +++ b/src/bin/lttng-sessiond/main.c @@ -2930,10 +2930,73 @@ skip_domain: break; } case LTTNG_ENABLE_EVENT: + case LTTNG_ENABLE_EVENT_WITH_EXCLUSION: { - ret = cmd_enable_event(cmd_ctx->session, &cmd_ctx->lsm->domain, - cmd_ctx->lsm->u.enable.channel_name, - &cmd_ctx->lsm->u.enable.event, NULL, NULL, kernel_poll_pipe[1]); + struct lttng_event_exclusion *exclusion = NULL; + struct lttng_filter_bytecode *bytecode = NULL; + + if (cmd_ctx->lsm->cmd_type == LTTNG_ENABLE_EVENT || + (cmd_ctx->lsm->u.enable.exclusion_count == 0 && cmd_ctx->lsm->u.enable.bytecode_len == 0)) { + ret = cmd_enable_event(cmd_ctx->session, &cmd_ctx->lsm->domain, + cmd_ctx->lsm->u.enable.channel_name, + &cmd_ctx->lsm->u.enable.event, NULL, NULL, kernel_poll_pipe[1]); + } else { + if (cmd_ctx->lsm->u.enable.exclusion_count != 0) { + exclusion = zmalloc(sizeof(struct lttng_event_exclusion) + + cmd_ctx->lsm->u.enable.exclusion_count * LTTNG_SYMBOL_NAME_LEN); + if (!exclusion) { + ret = LTTNG_ERR_EXCLUSION_NOMEM; + goto error; + } + DBG("Receiving var len data from client ..."); + exclusion->count = cmd_ctx->lsm->u.enable.exclusion_count; + ret = lttcomm_recv_unix_sock(sock, exclusion->names, + cmd_ctx->lsm->u.enable.exclusion_count * LTTNG_SYMBOL_NAME_LEN); + if (ret <= 0) { + DBG("Nothing recv() from client var len data... continuing"); + *sock_error = 1; + ret = LTTNG_ERR_EXCLUSION_INVAL; + goto error; + } + } + if (cmd_ctx->lsm->u.enable.bytecode_len != 0) { + bytecode = zmalloc(cmd_ctx->lsm->u.enable.bytecode_len); + if (!bytecode) { + if (!exclusion) + free(exclusion); + ret = LTTNG_ERR_FILTER_NOMEM; + goto error; + } + /* Receive var. len. data */ + DBG("Receiving var len data from client ..."); + ret = lttcomm_recv_unix_sock(sock, bytecode, + cmd_ctx->lsm->u.enable.bytecode_len); + if (ret <= 0) { + DBG("Nothing recv() from client car len data... continuing"); + *sock_error = 1; + if (!exclusion) + free(exclusion); + ret = LTTNG_ERR_FILTER_INVAL; + goto error; + } + + if (bytecode->len + sizeof(*bytecode) + != cmd_ctx->lsm->u.enable.bytecode_len) { + free(bytecode); + if (!exclusion) + free(exclusion); + ret = LTTNG_ERR_FILTER_INVAL; + goto error; + } + } + + ret = cmd_enable_event(cmd_ctx->session, + &cmd_ctx->lsm->domain, + cmd_ctx->lsm->u.enable.channel_name, + &cmd_ctx->lsm->u.enable.event, bytecode, + exclusion, + kernel_poll_pipe[1]); + } break; } case LTTNG_ENABLE_ALL_EVENT: -- 1.8.1.2 _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
