net.h revision 331251
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 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD: stable/11/stand/libsa/net.h 331251 2018-03-20 17:41:54Z kevans $ 37 */ 38 39#ifndef _STAND_NET_H 40#define _STAND_NET_H 41#ifndef _KERNEL /* XXX - see <netinet/in.h> */ 42#undef __IPADDR 43#define __IPADDR(x) htonl((u_int32_t)(x)) 44#endif 45 46#include "iodesc.h" 47 48#define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } 49 50enum net_proto { 51 NET_NONE, 52 NET_NFS, 53 NET_TFTP 54}; 55 56/* Returns true if n_long's on the same net */ 57#define SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m)) 58 59#define MACPY(s, d) bcopy((char *)s, (char *)d, 6) 60 61#define MAXTMO 120 /* seconds */ 62#define MINTMO 2 /* seconds */ 63 64/* 65 * Maximum wait time for sending and receiving before we give up and timeout. 66 * If set to 0, operations will eventually timeout completely, but send/recv 67 * timeouts must progress exponentially from MINTMO to MAXTMO before final 68 * timeout is hit. 69 */ 70#ifndef MAXWAIT 71#define MAXWAIT 0 /* seconds */ 72#endif 73 74#if MAXWAIT < 0 75#error MAXWAIT must not be a negative number 76#endif 77 78#define FNAME_SIZE 128 79#define IFNAME_SIZE 16 80#define RECV_SIZE 1536 /* XXX delete this */ 81 82/* 83 * How much room to leave for headers: 84 * 14: struct ether_header 85 * 20: struct ip 86 * 8: struct udphdr 87 * That's 42 but let's pad it out to 48 bytes. 88 */ 89#define ETHER_SIZE 14 90#define HEADER_SIZE 48 91 92extern u_char bcea[6]; 93extern char rootpath[FNAME_SIZE]; 94extern char bootfile[FNAME_SIZE]; 95extern char hostname[FNAME_SIZE]; 96extern int hostnamelen; 97extern char domainname[FNAME_SIZE]; 98extern int domainnamelen; 99extern int netproto; 100extern char ifname[IFNAME_SIZE]; 101 102/* All of these are in network order. */ 103extern struct in_addr myip; 104extern struct in_addr rootip; 105extern struct in_addr swapip; 106extern struct in_addr gateip; 107extern struct in_addr nameip; 108extern n_long netmask; 109extern u_int intf_mtu; 110 111extern int debug; /* defined in the machdep sources */ 112 113extern struct iodesc sockets[SOPEN_MAX]; 114 115/* ARP/RevARP functions: */ 116u_char *arpwhohas(struct iodesc *, struct in_addr); 117void arp_reply(struct iodesc *, void *); 118int rarp_getipaddress(int); 119 120/* Link functions: */ 121ssize_t sendether(struct iodesc *d, void *pkt, size_t len, 122 u_char *dea, int etype); 123ssize_t readether(struct iodesc *, void **, void **, time_t, uint16_t *); 124 125ssize_t sendip(struct iodesc *, void *, size_t, uint8_t); 126ssize_t readip(struct iodesc *, void **, void **, time_t, uint8_t); 127ssize_t sendudp(struct iodesc *, void *, size_t); 128ssize_t readudp(struct iodesc *, void **, void **, time_t); 129ssize_t sendrecv(struct iodesc *, 130 ssize_t (*)(struct iodesc *, void *, size_t), 131 void *, size_t, 132 ssize_t (*)(struct iodesc *, void **, void **, time_t, 133 void *), 134 void **, void **, void *); 135 136/* bootp/DHCP */ 137void bootp(int); 138 139/* Utilities: */ 140char *ether_sprintf(u_char *); 141int in_cksum(void *, int); 142char *inet_ntoa(struct in_addr); 143char *intoa(n_long); /* similar to inet_ntoa */ 144n_long inet_addr(char *); 145 146#endif /* ! _STAND_NET_H */ 147