mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
9a31144537
has not worked since the arp-v2 rewrite. The event handler will be called with the llentry write-locked and can examine la_flags to determine whether the entry is being added or removed. Reviewed by: gnn, kmacy Approved by: gnn (mentor) MFC after: 1 month
128 lines
4.5 KiB
C
128 lines
4.5 KiB
C
/*-
|
|
* 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.
|
|
* 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
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NETINET_IF_ETHER_H_
|
|
#define _NETINET_IF_ETHER_H_
|
|
|
|
#include <net/ethernet.h>
|
|
#include <net/if_arp.h>
|
|
|
|
/*
|
|
* 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];
|
|
|
|
struct llentry;
|
|
struct ifaddr;
|
|
|
|
int arpresolve(struct ifnet *ifp, struct rtentry *rt,
|
|
struct mbuf *m, struct sockaddr *dst, u_char *desten,
|
|
struct llentry **lle);
|
|
void arp_ifinit(struct ifnet *, struct ifaddr *);
|
|
void arp_ifinit2(struct ifnet *, struct ifaddr *, u_char *);
|
|
|
|
#include <sys/eventhandler.h>
|
|
typedef void (*llevent_arp_update_fn)(void *, struct llentry *);
|
|
EVENTHANDLER_DECLARE(arp_update_event, llevent_arp_update_fn);
|
|
|
|
#endif
|
|
|
|
#endif
|