| 1 | /* |
| 2 | * Copyright (C) 2013 - David Goulet <dgoulet@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 | #ifndef AGENT_COMM |
| 19 | #define AGENT_COMM |
| 20 | |
| 21 | #define _GNU_SOURCE |
| 22 | #include <stdint.h> |
| 23 | |
| 24 | #include <lttng/lttng.h> |
| 25 | |
| 26 | /* |
| 27 | * Command value pass in the header. |
| 28 | */ |
| 29 | enum lttcomm_agent_command { |
| 30 | AGENT_CMD_LIST = 1, |
| 31 | AGENT_CMD_ENABLE = 2, |
| 32 | AGENT_CMD_DISABLE = 3, |
| 33 | AGENT_CMD_REG_DONE = 4, /* End registration process. */ |
| 34 | }; |
| 35 | |
| 36 | /* |
| 37 | * Return code from the Java agent. |
| 38 | */ |
| 39 | enum lttcomm_agent_ret_code { |
| 40 | AGENT_RET_CODE_SUCCESS = 1, |
| 41 | AGENT_RET_CODE_INVALID = 2, |
| 42 | AGENT_RET_CODE_UNKNOWN_NAME = 3, |
| 43 | }; |
| 44 | |
| 45 | /* |
| 46 | * Agent application communication header. |
| 47 | */ |
| 48 | struct lttcomm_agent_hdr { |
| 49 | uint64_t data_size; /* data size following this header */ |
| 50 | uint32_t cmd; /* Enum of agent command. */ |
| 51 | uint32_t cmd_version; /* command version */ |
| 52 | } LTTNG_PACKED; |
| 53 | |
| 54 | /* |
| 55 | * Enable event command payload. |
| 56 | */ |
| 57 | struct lttcomm_agent_enable { |
| 58 | uint32_t loglevel; |
| 59 | uint32_t loglevel_type; |
| 60 | char name[LTTNG_SYMBOL_NAME_LEN]; |
| 61 | } LTTNG_PACKED; |
| 62 | |
| 63 | /* |
| 64 | * Disable event command payload. |
| 65 | */ |
| 66 | struct lttcomm_agent_disable { |
| 67 | char name[LTTNG_SYMBOL_NAME_LEN]; |
| 68 | } LTTNG_PACKED; |
| 69 | |
| 70 | /* |
| 71 | * Generic reply coming from the Java Agent. |
| 72 | */ |
| 73 | struct lttcomm_agent_generic_reply { |
| 74 | uint32_t ret_code; |
| 75 | } LTTNG_PACKED; |
| 76 | |
| 77 | /* |
| 78 | * List command reply header. |
| 79 | */ |
| 80 | struct lttcomm_agent_list_reply_hdr { |
| 81 | uint32_t ret_code; |
| 82 | uint32_t data_size; |
| 83 | } LTTNG_PACKED; |
| 84 | |
| 85 | /* |
| 86 | * List command reply payload coming from the Java Agent. |
| 87 | */ |
| 88 | struct lttcomm_agent_list_reply { |
| 89 | uint32_t nb_event; |
| 90 | /* List of event name each of them ending by a NULL byte. */ |
| 91 | char payload[]; |
| 92 | } LTTNG_PACKED; |
| 93 | |
| 94 | #endif /* AGENT_COMM */ |