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01: /*
02:  *      connector.h
03:  * 
04:  * 2004-2005 Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
05:  * All rights reserved.
06:  * 
07:  * This program is free software; you can redistribute it and/or modify
08:  * it under the terms of the GNU General Public License as published by
09:  * 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 __CONNECTOR_H
23: #define __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                          /* __CONNECTOR_H */
78: 

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