1/*
2 * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * Copyright (c) 1982, 1986, 1993
30 * The Regents of the University of California. All rights reserved.
31 *
32 * Redistribution and use in source and binary forms, with or without
33 * modification, are permitted provided that the following conditions
34 * are met:
35 * 1. Redistributions of source code must retain the above copyright
36 * notice, this list of conditions and the following disclaimer.
37 * 2. Redistributions in binary form must reproduce the above copyright
38 * notice, this list of conditions and the following disclaimer in the
39 * documentation and/or other materials provided with the distribution.
40 * 3. All advertising materials mentioning features or use of this software
41 * must display the following acknowledgement:
42 * This product includes software developed by the University of
43 * California, Berkeley and its contributors.
44 * 4. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)if_ether.h 8.3 (Berkeley) 5/2/95
61 * $FreeBSD: src/sys/netinet/if_ether.h,v 1.24 1999/12/29 04:40:58 peter Exp $
62 */
63
64#ifndef _NETINET_IF_ETHER_H_
65#define _NETINET_IF_ETHER_H_
66#include <sys/appleapiopts.h>
67
68#include <net/ethernet.h>
69
70#include <netinet/in.h>
71#include <net/if_arp.h>
72#define ea_byte ether_addr_octet
73
74/*
75 * Macro to map an IP multicast address to an Ethernet multicast address.
76 * The high-order 25 bits of the Ethernet address are statically assigned,
77 * and the low-order 23 bits are taken from the low end of the IP address.
78 */
79#define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr) \
80 /* struct in_addr *ipaddr; */ \
81 /* u_char enaddr[ETHER_ADDR_LEN]; */ \
82{ \
83 (enaddr)[0] = 0x01; \
84 (enaddr)[1] = 0x00; \
85 (enaddr)[2] = 0x5e; \
86 (enaddr)[3] = ((const u_char *)ipaddr)[1] & 0x7f; \
87 (enaddr)[4] = ((const u_char *)ipaddr)[2]; \
88 (enaddr)[5] = ((const u_char *)ipaddr)[3]; \
89}
90/*
91 * Macro to map an IP6 multicast address to an Ethernet multicast address.
92 * The high-order 16 bits of the Ethernet address are statically assigned,
93 * and the low-order 32 bits are taken from the low end of the IP6 address.
94 */
95#define ETHER_MAP_IPV6_MULTICAST(ip6addr, enaddr) \
96/* struct in6_addr *ip6addr; */ \
97/* u_char enaddr[ETHER_ADDR_LEN]; */ \
98{ \
99 (enaddr)[0] = 0x33; \
100 (enaddr)[1] = 0x33; \
101 (enaddr)[2] = ((const u_char *)ip6addr)[12]; \
102 (enaddr)[3] = ((const u_char *)ip6addr)[13]; \
103 (enaddr)[4] = ((const u_char *)ip6addr)[14]; \
104 (enaddr)[5] = ((const u_char *)ip6addr)[15]; \
105}
106
107/*
108 * Ethernet Address Resolution Protocol.
109 *
110 * See RFC 826 for protocol description. Structure below is adapted
111 * to resolving internet addresses. Field names used correspond to
112 * RFC 826.
113 */
114struct ether_arp {
115 struct arphdr ea_hdr; /* fixed-size header */
116 u_char arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */
117 u_char arp_spa[4]; /* sender protocol address */
118 u_char arp_tha[ETHER_ADDR_LEN]; /* target hardware address */
119 u_char arp_tpa[4]; /* target protocol address */
120};
121#define arp_hrd ea_hdr.ar_hrd
122#define arp_pro ea_hdr.ar_pro
123#define arp_hln ea_hdr.ar_hln
124#define arp_pln ea_hdr.ar_pln
125#define arp_op ea_hdr.ar_op
126
127struct sockaddr_inarp {
128 u_char sin_len;
129 u_char sin_family;
130 u_short sin_port;
131 struct in_addr sin_addr;
132 struct in_addr sin_srcaddr;
133 u_short sin_tos;
134 u_short sin_other;
135#define SIN_PROXY 0x1
136#define SIN_ROUTER 0x2
137};
138/*
139 * IP and ethernet specific routing flags
140 */
141#define RTF_USETRAILERS RTF_PROTO1 /* use trailers */
142#define RTF_ANNOUNCE RTF_PROTO2 /* announce new arp entry */
143
144#ifdef BSD_KERNEL_PRIVATE
145extern u_char ether_ipmulticast_min[ETHER_ADDR_LEN];
146extern u_char ether_ipmulticast_max[ETHER_ADDR_LEN];
147extern struct ifqueue arpintrq;
148
149int arpresolve(struct ifnet *, struct rtentry *, struct mbuf *,
150 struct sockaddr *, u_char *, struct rtentry *);
151void arp_ifinit(struct ifnet *, struct ifaddr *);
152#endif /* BSD_KERNEL_PRIVATE */
153
154#endif /* _NETINET_IF_ETHER_H_ */
155