net.h revision 64185
1/* $NetBSD: net.h,v 1.10 1995/10/20 00:46:30 cgd Exp $ */ 2 3/* 4 * Copyright (c) 1993 Adam Glass 5 * Copyright (c) 1992 Regents of the University of California. 6 * All rights reserved. 7 * 8 * This software was developed by the Computer Systems Engineering group 9 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 10 * contributed to Berkeley. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Lawrence Berkeley Laboratory and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * $FreeBSD: head/lib/libstand/net.h 64185 2000-08-03 09:08:29Z jhb $ 41 */ 42 43#define NETIF_DEBUG 1 44 45#ifndef _KERNEL /* XXX - see <netinet/in.h> */ 46#undef __IPADDR 47#define __IPADDR(x) htonl((u_int32_t)(x)) 48#endif 49 50#include "iodesc.h" 51 52#define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } 53 54/* Returns true if n_long's on the same net */ 55#define SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m)) 56 57#define MACPY(s, d) bcopy((char *)s, (char *)d, 6) 58 59#define MAXTMO 20 /* seconds */ 60#define MINTMO 2 /* seconds */ 61 62#define FNAME_SIZE 128 63#define IFNAME_SIZE 16 64#define RECV_SIZE 1536 /* XXX delete this */ 65 66/* 67 * How much room to leave for headers: 68 * 14: struct ether_header 69 * 20: struct ip 70 * 8: struct udphdr 71 * That's 42 but let's pad it out to 48 bytes. 72 */ 73#define ETHER_SIZE 14 74#define HEADER_SIZE 48 75 76extern u_char bcea[6]; 77extern char rootpath[FNAME_SIZE]; 78extern char bootfile[FNAME_SIZE]; 79extern char hostname[FNAME_SIZE]; 80extern int hostnamelen; 81extern char domainname[FNAME_SIZE]; 82extern int domainnamelen; 83extern char ifname[IFNAME_SIZE]; 84 85/* All of these are in network order. */ 86extern struct in_addr myip; 87extern struct in_addr rootip; 88extern struct in_addr swapip; 89extern struct in_addr gateip; 90extern struct in_addr nameip; 91extern n_long netmask; 92 93extern int debug; /* defined in the machdep sources */ 94 95extern struct iodesc sockets[SOPEN_MAX]; 96 97/* ARP/RevARP functions: */ 98u_char *arpwhohas(struct iodesc *, struct in_addr); 99void arp_reply(struct iodesc *, void *); 100int rarp_getipaddress(int); 101 102/* Link functions: */ 103ssize_t sendether(struct iodesc *d, void *pkt, size_t len, 104 u_char *dea, int etype); 105ssize_t readether(struct iodesc *d, void *pkt, size_t len, 106 time_t tleft, u_int16_t *etype); 107 108ssize_t sendudp(struct iodesc *, void *, size_t); 109ssize_t readudp(struct iodesc *, void *, size_t, time_t); 110ssize_t sendrecv(struct iodesc *, 111 ssize_t (*)(struct iodesc *, void *, size_t), 112 void *, size_t, 113 ssize_t (*)(struct iodesc *, void *, size_t, time_t), 114 void *, size_t); 115 116/* bootp/DHCP */ 117void bootp(int); 118 119/* Utilities: */ 120char *ether_sprintf(u_char *); 121int in_cksum(void *, int); 122char *inet_ntoa(struct in_addr); 123char *intoa(n_long); /* similar to inet_ntoa */ 124n_long inet_addr(char *); 125 126/* Machine-dependent functions: */ 127time_t getsecs(void); 128