| 1 | /* $NetBSD: if_inarp.h,v 1.50 2016/10/11 12:32:30 roy Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1982, 1986, 1993 |
| 5 | * The Regents of the University of California. All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. Neither the name of the University nor the names of its contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | * |
| 31 | * @(#)if_ether.h 8.1 (Berkeley) 6/10/93 |
| 32 | */ |
| 33 | |
| 34 | #ifndef _NETINET_IF_INARP_H_ |
| 35 | #define _NETINET_IF_INARP_H_ |
| 36 | |
| 37 | #include <sys/queue.h> /* for LIST_ENTRY */ |
| 38 | #include <netinet/in.h> /* for struct in_addr */ |
| 39 | |
| 40 | struct llinfo_arp { |
| 41 | LIST_ENTRY(llinfo_arp) la_list; |
| 42 | struct rtentry *la_rt; |
| 43 | struct mbuf *la_hold; /* last packet until resolved/timeout */ |
| 44 | long la_asked; /* last time we QUERIED for this addr */ |
| 45 | }; |
| 46 | |
| 47 | struct sockaddr_inarp { |
| 48 | u_int8_t sin_len; |
| 49 | u_int8_t sin_family; |
| 50 | u_int16_t sin_port; |
| 51 | struct in_addr sin_addr; |
| 52 | struct in_addr sin_srcaddr; |
| 53 | u_int16_t sin_tos; |
| 54 | u_int16_t sin_other; |
| 55 | #define SIN_PROXY 1 |
| 56 | }; |
| 57 | |
| 58 | #ifdef _KERNEL |
| 59 | |
| 60 | /* ARP timings from RFC5227 */ |
| 61 | #define PROBE_WAIT 1 |
| 62 | #define PROBE_NUM 3 |
| 63 | #define PROBE_MIN 1 |
| 64 | #define PROBE_MAX 2 |
| 65 | #define ANNOUNCE_WAIT 2 |
| 66 | #define ANNOUNCE_NUM 2 |
| 67 | #define ANNOUNCE_INTERVAL 2 |
| 68 | #define MAX_CONFLICTS 10 |
| 69 | #define RATE_LIMIT_INTERVAL 60 |
| 70 | #define DEFEND_INTERVAL 10 |
| 71 | |
| 72 | #include <sys/malloc.h> |
| 73 | MALLOC_DECLARE(M_IPARP); |
| 74 | |
| 75 | extern struct ifqueue arpintrq; |
| 76 | void arp_ifinit(struct ifnet *, struct ifaddr *); |
| 77 | void arp_rtrequest(int, struct rtentry *, const struct rt_addrinfo *); |
| 78 | int arpresolve(struct ifnet *, const struct rtentry *, struct mbuf *, |
| 79 | const struct sockaddr *, void *, size_t); |
| 80 | void arpintr(void); |
| 81 | void arpannounce(struct ifnet *, struct ifaddr *, const uint8_t *); |
| 82 | void arp_drain(void); |
| 83 | int arpioctl(u_long, void *); |
| 84 | void arpwhohas(struct ifnet *, struct in_addr *); |
| 85 | |
| 86 | void revarpinput(struct mbuf *); |
| 87 | int revarpwhoarewe(struct ifnet *, struct in_addr *, struct in_addr *); |
| 88 | #endif |
| 89 | |
| 90 | #endif /* !_NETINET_IF_INARP_H_ */ |
| 91 | |