| David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 1 | /* |
| 2 | * connector.h |
| 3 | * |
| 4 | * 2004-2005 Copyright (c) Evgeniy Polyakov <zbr@ioremap.net> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | #ifndef _UAPI__CONNECTOR_H |
| 23 | #define _UAPI__CONNECTOR_H |
| 24 | |
| 25 | #include <linux/types.h> |
| 26 | |
| 27 | /* |
| 28 | * Process Events connector unique ids -- used for message routing |
| 29 | */ |
| 30 | #define CN_IDX_PROC 0x1 |
| 31 | #define CN_VAL_PROC 0x1 |
| 32 | #define CN_IDX_CIFS 0x2 |
| 33 | #define CN_VAL_CIFS 0x1 |
| 34 | #define CN_W1_IDX 0x3 /* w1 communication */ |
| 35 | #define CN_W1_VAL 0x1 |
| 36 | #define CN_IDX_V86D 0x4 |
| 37 | #define CN_VAL_V86D_UVESAFB 0x1 |
| 38 | #define CN_IDX_BB 0x5 /* BlackBoard, from the TSP GPL sampling framework */ |
| 39 | #define CN_DST_IDX 0x6 |
| 40 | #define CN_DST_VAL 0x1 |
| 41 | #define CN_IDX_DM 0x7 /* Device Mapper */ |
| 42 | #define CN_VAL_DM_USERSPACE_LOG 0x1 |
| 43 | #define CN_IDX_DRBD 0x8 |
| 44 | #define CN_VAL_DRBD 0x1 |
| 45 | #define CN_KVP_IDX 0x9 /* HyperV KVP */ |
| 46 | #define CN_KVP_VAL 0x1 /* queries from the kernel */ |
| 47 | |
| 48 | #define CN_NETLINK_USERS 10 /* Highest index + 1 */ |
| 49 | |
| 50 | /* |
| 51 | * Maximum connector's message size. |
| 52 | */ |
| 53 | #define CONNECTOR_MAX_MSG_SIZE 16384 |
| 54 | |
| 55 | /* |
| 56 | * idx and val are unique identifiers which |
| 57 | * are used for message routing and |
| 58 | * must be registered in connector.h for in-kernel usage. |
| 59 | */ |
| 60 | |
| 61 | struct cb_id { |
| 62 | __u32 idx; |
| 63 | __u32 val; |
| 64 | }; |
| 65 | |
| 66 | struct cn_msg { |
| 67 | struct cb_id id; |
| 68 | |
| 69 | __u32 seq; |
| 70 | __u32 ack; |
| 71 | |
| 72 | __u16 len; /* Length of the following data */ |
| 73 | __u16 flags; |
| 74 | __u8 data[0]; |
| 75 | }; |
| 76 | |
| 77 | #endif /* _UAPI__CONNECTOR_H */ |