1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (c) 2008 Nicira Networks.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef NETLINK_PROTOCOL_H
#define NETLINK_PROTOCOL_H 1
/* Netlink protocol definitions.
*
* These definitions are equivalent to those in the Linux 2.6 kernel headers,
* without requiring those headers to be available. */
#include <stdint.h>
#include <sys/socket.h>
#include "util.h"
#define NETLINK_GENERIC 16
struct sockaddr_nl {
sa_family_t nl_family;
unsigned short int nl_pad;
uint32_t nl_pid;
uint32_t nl_groups;
};
BUILD_ASSERT_DECL(sizeof(struct sockaddr_nl) == 12);
/* nlmsg_flags bits. */
#define NLM_F_REQUEST 0x001
#define NLM_F_MULTI 0x002
#define NLM_F_ACK 0x004
#define NLM_F_ECHO 0x008
#define NLM_F_ROOT 0x100
#define NLM_F_MATCH 0x200
#define NLM_F_ATOMIC 0x400
#define NLM_F_DUMP (NLM_F_ROOT | NLM_F_MATCH)
/* nlmsg_type values. */
#define NLMSG_NOOP 1
#define NLMSG_ERROR 2
#define NLMSG_DONE 3
#define NLMSG_OVERRUN 4
#define NLMSG_MIN_TYPE 0x10
struct nlmsghdr {
uint32_t nlmsg_len;
uint16_t nlmsg_type;
uint16_t nlmsg_flags;
uint32_t nlmsg_seq;
uint32_t nlmsg_pid;
};
BUILD_ASSERT_DECL(sizeof(struct nlmsghdr) == 16);
#define NLMSG_ALIGNTO 4
#define NLMSG_ALIGN(SIZE) ROUND_UP(SIZE, NLMSG_ALIGNTO)
#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
struct nlmsgerr
{
int error;
struct nlmsghdr msg;
};
BUILD_ASSERT_DECL(sizeof(struct nlmsgerr) == 20);
#define NETLINK_ADD_MEMBERSHIP 1
#define NETLINK_DROP_MEMBERSHIP 2
#define NETLINK_PKTINFO 3
struct genlmsghdr {
uint8_t cmd;
uint8_t version;
uint16_t reserved;
};
BUILD_ASSERT_DECL(sizeof(struct genlmsghdr) == 4);
#define GENL_HDRLEN NLMSG_ALIGN(sizeof(struct genlmsghdr))
struct nlattr {
uint16_t nla_len;
uint16_t nla_type;
};
BUILD_ASSERT_DECL(sizeof(struct nlattr) == 4);
#define NLA_ALIGNTO 4
#define NLA_ALIGN(SIZE) ROUND_UP(SIZE, NLA_ALIGNTO)
#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
#define GENL_MIN_ID NLMSG_MIN_TYPE
#define GENL_MAX_ID 1023
#define GENL_ID_CTRL NLMSG_MIN_TYPE
enum {
CTRL_CMD_UNSPEC,
CTRL_CMD_NEWFAMILY,
CTRL_CMD_DELFAMILY,
CTRL_CMD_GETFAMILY,
CTRL_CMD_NEWOPS,
CTRL_CMD_DELOPS,
CTRL_CMD_GETOPS,
__CTRL_CMD_MAX,
};
#define CTRL_CMD_MAX (__CTRL_CMD_MAX - 1)
enum {
CTRL_ATTR_UNSPEC,
CTRL_ATTR_FAMILY_ID,
CTRL_ATTR_FAMILY_NAME,
CTRL_ATTR_VERSION,
CTRL_ATTR_HDRSIZE,
CTRL_ATTR_MAXATTR,
CTRL_ATTR_OPS,
__CTRL_ATTR_MAX,
};
#define CTRL_ATTR_MAX (__CTRL_ATTR_MAX - 1)
enum {
CTRL_ATTR_OP_UNSPEC,
CTRL_ATTR_OP_ID,
CTRL_ATTR_OP_FLAGS,
__CTRL_ATTR_OP_MAX,
};
#define CTRL_ATTR_OP_MAX (__CTRL_ATTR_OP_MAX - 1)
#endif /* netlink-protocol.h */
|
