| 1 | /* |
| 2 | * Copyright (C) 2019 - Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License, version 2 only, as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 51 |
| 15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | */ |
| 17 | |
| 18 | #define _LGPL_SOURCE |
| 19 | #include <assert.h> |
| 20 | #include <inttypes.h> |
| 21 | #include <string.h> |
| 22 | #include <unistd.h> |
| 23 | |
| 24 | #include <common/defaults.h> |
| 25 | #include <common/error.h> |
| 26 | #include <common/utils.h> |
| 27 | |
| 28 | #include "clear.h" |
| 29 | #include "session.h" |
| 30 | #include "ust-app.h" |
| 31 | #include "kernel.h" |
| 32 | |
| 33 | |
| 34 | int cmd_clear_session(struct ltt_session *session) |
| 35 | { |
| 36 | int ret; |
| 37 | |
| 38 | if (!session->has_been_started) { |
| 39 | /* Nothing to be cleared, do not warn */ |
| 40 | ret = LTTNG_OK; |
| 41 | goto end; |
| 42 | } |
| 43 | |
| 44 | /* |
| 45 | * Unsupported feature in lttng-relayd before 2.12. |
| 46 | */ |
| 47 | if (session->consumer->type == CONSUMER_DST_NET && |
| 48 | (session->consumer->relay_major_version == 2 && |
| 49 | session->consumer->relay_minor_version < 12)) { |
| 50 | ret = LTTNG_ERR_CLEAR_NOT_AVAILABLE_RELAY; |
| 51 | goto end; |
| 52 | } |
| 53 | |
| 54 | /* TODO: Should we check for disallowed here or consumer side? */ |
| 55 | |
| 56 | /* Snapshot session are the only one supported for now */ |
| 57 | if (!session->snapshot_mode) { |
| 58 | /* |
| 59 | * TODO: this error code is temporary and will be removed since |
| 60 | * we will be supporting all session type |
| 61 | */ |
| 62 | ret = LTTNG_ERR_CLEAR_NOT_AVAILABLE; |
| 63 | goto end; |
| 64 | } |
| 65 | |
| 66 | if (session->kernel_session) { |
| 67 | ret = kernel_clear_session(session); |
| 68 | if (ret != LTTNG_OK) { |
| 69 | goto error; |
| 70 | } |
| 71 | } |
| 72 | if (session->ust_session) { |
| 73 | ret = ust_app_clear_session(session); |
| 74 | if (ret != LTTNG_OK) { |
| 75 | goto error; |
| 76 | } |
| 77 | } |
| 78 | error: |
| 79 | end: |
| 80 | return ret; |
| 81 | } |