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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*
- * 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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 8.3 (Berkeley) 5/2/95
- */
-
- #ifndef _NETINET_IF_ETHER_H_
- #define _NETINET_IF_ETHER_H_
-
-
- #include <net/ethernet.h>
-
- #include <netinet/in.h>
- #include <net/if_arp.h>
- #include <net/etherdefs.h>
- #define ea_byte ether_addr_octet
-
-
- /*
- * Macro for looking up the ether_multi record for a given range of Ethernet
- * multicast addresses connected to a given arpcom structure. If no matching
- * record is found, "enm" returns NULL.
- */
- #define ETHER_LOOKUP_MULTI(addrlo, addrhi, ac, enm) \
- /* u_char addrlo[6]; */ \
- /* u_char addrhi[6]; */ \
- /* struct arpcom *ac; */ \
- /* struct ether_multi *enm; */ \
- { \
- for ((enm) = (ac)->ac_multiaddrs; \
- (enm) != NULL && \
- (bcmp((enm)->enm_addrlo, (addrlo), 6) != 0 || \
- bcmp((enm)->enm_addrhi, (addrhi), 6) != 0); \
- (enm) = (enm)->enm_next); \
- }
-
- /*
- * Macro to step through all of the ether_multi records, one at a time.
- * The current position is remembered in "step", which the caller must
- * provide. ETHER_FIRST_MULTI(), below, must be called to initialize "step"
- * and get the first record. Both macros return a NULL "enm" when there
- * are no remaining records.
- */
- #define ETHER_NEXT_MULTI(step, enm) \
- /* struct ether_multistep step; */ \
- /* struct ether_multi *enm; */ \
- { \
- if (((enm) = (step).e_enm) != NULL) \
- (step).e_enm = (enm)->enm_next; \
- }
-
- #define ETHER_FIRST_MULTI(step, ac, enm) \
- /* struct ether_multistep step; */ \
- /* struct arpcom *ac; */ \
- /* struct ether_multi *enm; */ \
- { \
- (step).e_enm = (ac)->ac_multiaddrs; \
- ETHER_NEXT_MULTI((step), (enm)); \
- }
-
- #define ETHERTYPE_IPV6 0x86dd
-
- /*
- * Macro to map an IP multicast address to an Ethernet multicast address.
- * The high-order 25 bits of the Ethernet address are statically assigned,
- * and the low-order 23 bits are taken from the low end of the IP address.
- */
- #define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr) \
- /* struct in_addr *ipaddr; */ \
- /* u_char enaddr[ETHER_ADDR_LEN]; */ \
- { \
- (enaddr)[0] = 0x01; \
- (enaddr)[1] = 0x00; \
- (enaddr)[2] = 0x5e; \
- (enaddr)[3] = ((u_char *)ipaddr)[1] & 0x7f; \
- (enaddr)[4] = ((u_char *)ipaddr)[2]; \
- (enaddr)[5] = ((u_char *)ipaddr)[3]; \
- }
- /*
- * Macro to map an IP6 multicast address to an Ethernet multicast address.
- * The high-order 16 bits of the Ethernet address are statically assigned,
- * and the low-order 32 bits are taken from the low end of the IP6 address.
- */
- #define ETHER_MAP_IPV6_MULTICAST(ip6addr, enaddr) \
- /* struct in6_addr *ip6addr; */ \
- /* u_char enaddr[ETHER_ADDR_LEN]; */ \
- { \
- (enaddr)[0] = 0x33; \
- (enaddr)[1] = 0x33; \
- (enaddr)[2] = ((u_char *)ip6addr)[12]; \
- (enaddr)[3] = ((u_char *)ip6addr)[13]; \
- (enaddr)[4] = ((u_char *)ip6addr)[14]; \
- (enaddr)[5] = ((u_char *)ip6addr)[15]; \
- }
-
- /*
- * 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 */
- u_char arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */
- u_char arp_spa[4]; /* sender protocol address */
- u_char arp_tha[ETHER_ADDR_LEN]; /* target hardware address */
- u_char 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
-
- struct sockaddr_inarp {
- u_char sin_len;
- u_char sin_family;
- u_short sin_port;
- struct in_addr sin_addr;
- struct in_addr sin_srcaddr;
- u_short sin_tos;
- u_short sin_other;
- #define SIN_PROXY 1
- };
- /*
- * IP and ethernet specific routing flags
- */
- #define RTF_USETRAILERS RTF_PROTO1 /* use trailers */
- #define RTF_ANNOUNCE RTF_PROTO2 /* announce new arp entry */
-
- #ifdef KERNEL
- extern u_char ether_ipmulticast_min[ETHER_ADDR_LEN];
- extern u_char ether_ipmulticast_max[ETHER_ADDR_LEN];
- extern struct ifqueue arpintrq;
-
- int arpresolve __P((struct arpcom *, struct rtentry *, struct mbuf *,
- struct sockaddr *, u_char *, struct rtentry *));
- void arp_ifinit __P((struct arpcom *, struct ifaddr *));
- #endif
-
- #endif
-