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
|
/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)if_ether.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _MSC_VER
#include_next <netinet/if_ether.h>
#else
#ifndef IKED_COMPAT_NETINET_IF_ETHER_H
#define IKED_COMPAT_NETINET_IF_ETHER_H
/*
* Some basic Ethernet constants.
*/
#define ETHER_ADDR_LEN 6 /* Ethernet address length */
#define ETHER_TYPE_LEN 2 /* Ethernet type field length */
#define ETHER_CRC_LEN 4 /* Ethernet CRC length */
#define ETHER_HDR_LEN ((ETHER_ADDR_LEN * 2) + ETHER_TYPE_LEN)
#define ETHER_MIN_LEN 64 /* Minimum frame length, CRC included */
#define ETHER_MAX_LEN 1518 /* Maximum frame length, CRC included */
#define ETHER_MAX_DIX_LEN 1536 /* Maximum DIX frame length */
/*
* Some Ethernet extensions.
*/
#define ETHER_VLAN_ENCAP_LEN 4 /* len of 802.1Q VLAN encapsulation */
/*
* Mbuf adjust factor to force 32-bit alignment of IP header.
* Drivers should do m_adj(m, ETHER_ALIGN) when setting up a
* receive so the upper layers get the IP header properly aligned
* past the 14-byte Ethernet header.
*/
#define ETHER_ALIGN 2 /* driver adjust for IP hdr alignment */
/*
* The maximum supported Ethernet length and some space for encapsulation.
*/
#define ETHER_MAX_HARDMTU_LEN 65435
/*
* Ethernet address - 6 octets
*/
struct ether_addr {
uint8_t ether_addr_octet[ETHER_ADDR_LEN];
};
/*
* The length of the combined header.
*/
struct ether_header {
uint8_t ether_dhost[ETHER_ADDR_LEN];
uint8_t ether_shost[ETHER_ADDR_LEN];
uint16_t ether_type;
};
/*
* VLAN headers.
*/
struct ether_vlan_header {
uchar evl_dhost[ETHER_ADDR_LEN];
uchar evl_shost[ETHER_ADDR_LEN];
uint16_t evl_encap_proto;
uint16_t evl_tag;
uint16_t evl_proto;
};
/*
* Ethernet Address Resolution Protocol.
*
* See RFC 826 for protocol description. Structure below is adapted
* to resolving internet addresses. Field names used correspond to
* RFC 826.
*/
struct ether_arp {
struct arphdr ea_hdr; /* fixed-size header */
uint8_t arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */
uint8_t arp_spa[4]; /* sender protocol address */
uint8_t arp_tha[ETHER_ADDR_LEN]; /* target hardware address */
uint8_t arp_tpa[4]; /* target protocol address */
};
#define arp_hrd ea_hdr.ar_hrd
#define arp_pro ea_hdr.ar_pro
#define arp_hln ea_hdr.ar_hln
#define arp_pln ea_hdr.ar_pln
#define arp_op ea_hdr.ar_op
#endif /* !IKED_COMPAT_NETINET_IF_ETHER_H */
#endif
|
