[apple/xnu.git] / bsd / netinet / if_ether.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * Please see the License for the specific language governing rights and 
 * limitations under the License.
 *
 * @APPLE_LICENSE_OSREFERENCE_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
 * $FreeBSD: src/sys/netinet/if_ether.h,v 1.24 1999/12/29 04:40:58 peter Exp $
 */

#ifndef _NETINET_IF_ETHER_H_
#define _NETINET_IF_ETHER_H_
#include <sys/appleapiopts.h>

#include <net/ethernet.h>

#include <netinet/in.h>
#include <net/if_arp.h>
#define ea_byte	ether_addr_octet

/*
 * 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] = ((const u_char *)ipaddr)[1] & 0x7f; \
	(enaddr)[4] = ((const u_char *)ipaddr)[2]; \
	(enaddr)[5] = ((const 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] = ((const u_char *)ip6addr)[12];				\
	(enaddr)[3] = ((const u_char *)ip6addr)[13];				\
	(enaddr)[4] = ((const u_char *)ip6addr)[14];				\
	(enaddr)[5] = ((const 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_PRIVATE
extern u_char	ether_ipmulticast_min[ETHER_ADDR_LEN];
extern u_char	ether_ipmulticast_max[ETHER_ADDR_LEN];
extern struct	ifqueue arpintrq;

int	arpresolve(struct ifnet *, struct rtentry *, struct mbuf *,
			struct sockaddr *, u_char *, struct rtentry *);
void	arp_ifinit(struct ifnet *, struct ifaddr *);
#endif KERNEL_PRIVATE

#endif /* _NETINET_IF_ETHER_H_ */
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
8ad349bb	4	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b	5	*
8ad349bb A	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
	10	* License may not be used to create, or enable the creation or
	11	* redistribution of, unlawful or unlicensed copies of an Apple operating
	12	* system, or to circumvent, violate, or enable the circumvention or
	13	* violation of, any terms of an Apple operating system software license
	14	* agreement.
	15	*
	16	* Please obtain a copy of the License at
	17	* http://www.opensource.apple.com/apsl/ and read it before using this
	18	* file.
	19	*
	20	* The Original Code and all software distributed under the License are
	21	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	22	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	23	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	24	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	25	* Please see the License for the specific language governing rights and
	26	* limitations under the License.
	27	*
	28	* @APPLE_LICENSE_OSREFERENCE_HEADER_END@
1c79356b A	29	*/
	30	/*
	31	* Copyright (c) 1982, 1986, 1993
	32	* The Regents of the University of California. All rights reserved.
	33	*
	34	* Redistribution and use in source and binary forms, with or without
	35	* modification, are permitted provided that the following conditions
	36	* are met:
	37	* 1. Redistributions of source code must retain the above copyright
	38	* notice, this list of conditions and the following disclaimer.
	39	* 2. Redistributions in binary form must reproduce the above copyright
	40	* notice, this list of conditions and the following disclaimer in the
	41	* documentation and/or other materials provided with the distribution.
	42	* 3. All advertising materials mentioning features or use of this software
	43	* must display the following acknowledgement:
	44	* This product includes software developed by the University of
	45	* California, Berkeley and its contributors.
	46	* 4. Neither the name of the University nor the names of its contributors
	47	* may be used to endorse or promote products derived from this software
	48	* without specific prior written permission.
	49	*
	50	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	51	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	52	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	53	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	54	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	55	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	56	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	57	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	58	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	59	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	60	* SUCH DAMAGE.
	61	*
	62	* @(#)if_ether.h 8.3 (Berkeley) 5/2/95
9bccf70c	63	* $FreeBSD: src/sys/netinet/if_ether.h,v 1.24 1999/12/29 04:40:58 peter Exp $
1c79356b A	64	*/
	65
	66	#ifndef _NETINET_IF_ETHER_H_
	67	#define _NETINET_IF_ETHER_H_
9bccf70c	68	#include <sys/appleapiopts.h>
1c79356b A	69
	70	#include <net/ethernet.h>
	71
	72	#include <netinet/in.h>
	73	#include <net/if_arp.h>
1c79356b A	74	#define ea_byte ether_addr_octet
1c79356b A	75
1c79356b A	76	/*
	77	* Macro to map an IP multicast address to an Ethernet multicast address.
	78	* The high-order 25 bits of the Ethernet address are statically assigned,
	79	* and the low-order 23 bits are taken from the low end of the IP address.
	80	*/
	81	#define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr) \
	82	/* struct in_addr ipaddr; / \
	83	/* u_char enaddr[ETHER_ADDR_LEN]; */ \
	84	{ \
	85	(enaddr)[0] = 0x01; \
	86	(enaddr)[1] = 0x00; \
	87	(enaddr)[2] = 0x5e; \
91447636 A	88	(enaddr)[3] = ((const u_char *)ipaddr)[1] & 0x7f; \
	89	(enaddr)[4] = ((const u_char *)ipaddr)[2]; \
	90	(enaddr)[5] = ((const u_char *)ipaddr)[3]; \
1c79356b A	91	}
	92	/*
	93	* Macro to map an IP6 multicast address to an Ethernet multicast address.
	94	* The high-order 16 bits of the Ethernet address are statically assigned,
	95	* and the low-order 32 bits are taken from the low end of the IP6 address.
	96	*/
	97	#define ETHER_MAP_IPV6_MULTICAST(ip6addr, enaddr) \
9bccf70c A	98	/* struct in6_addr ip6addr; / \
9bccf70c A	99	/* u_char enaddr[ETHER_ADDR_LEN]; */ \
1c79356b A	100	{ \
	101	(enaddr)[0] = 0x33; \
	102	(enaddr)[1] = 0x33; \
91447636 A	103	(enaddr)[2] = ((const u_char *)ip6addr)[12]; \
	104	(enaddr)[3] = ((const u_char *)ip6addr)[13]; \
	105	(enaddr)[4] = ((const u_char *)ip6addr)[14]; \
	106	(enaddr)[5] = ((const u_char *)ip6addr)[15]; \
1c79356b A	107	}
	108
	109	/*
	110	* Ethernet Address Resolution Protocol.
	111	*
	112	* See RFC 826 for protocol description. Structure below is adapted
	113	* to resolving internet addresses. Field names used correspond to
	114	* RFC 826.
	115	*/
	116	struct ether_arp {
	117	struct arphdr ea_hdr; /* fixed-size header */
	118	u_char arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */
	119	u_char arp_spa[4]; /* sender protocol address */
	120	u_char arp_tha[ETHER_ADDR_LEN]; /* target hardware address */
	121	u_char arp_tpa[4]; /* target protocol address */
	122	};
	123	#define arp_hrd ea_hdr.ar_hrd
	124	#define arp_pro ea_hdr.ar_pro
	125	#define arp_hln ea_hdr.ar_hln
	126	#define arp_pln ea_hdr.ar_pln
	127	#define arp_op ea_hdr.ar_op
	128
	129	struct sockaddr_inarp {
	130	u_char sin_len;
	131	u_char sin_family;
	132	u_short sin_port;
	133	struct in_addr sin_addr;
	134	struct in_addr sin_srcaddr;
	135	u_short sin_tos;
	136	u_short sin_other;
	137	#define SIN_PROXY 1
	138	};
	139	/*
	140	* IP and ethernet specific routing flags
	141	*/
	142	#define RTF_USETRAILERS RTF_PROTO1 /* use trailers */
	143	#define RTF_ANNOUNCE RTF_PROTO2 /* announce new arp entry */
	144
91447636	145	#ifdef KERNEL_PRIVATE
1c79356b A	146	extern u_char ether_ipmulticast_min[ETHER_ADDR_LEN];
	147	extern u_char ether_ipmulticast_max[ETHER_ADDR_LEN];
	148	extern struct ifqueue arpintrq;
	149
91447636 A	150	int arpresolve(struct ifnet , struct rtentry , struct mbuf *,
	151	struct sockaddr , u_char , struct rtentry *);
	152	void arp_ifinit(struct ifnet , struct ifaddr );
	153	#endif KERNEL_PRIVATE
1c79356b	154
5d5c5d0d	155	#endif /* _NETINET_IF_ETHER_H_ */