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 * $FreeBSD$ 37 */ 38 39 #ifndef _KERNEL /* XXX - see <netinet/in.h> */ 40 #undef __IPADDR 41 #define __IPADDR(x) htonl((u_int32_t)(x)) 42 #endif 43 44 #include "iodesc.h" 45 46 #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } 47 48 /* Returns true if n_long's on the same net */ 49 #define SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m)) 50 51 #define MACPY(s, d) bcopy((char *)s, (char *)d, 6) 52 53 #define MAXTMO 120 /* seconds */ 54 #define MINTMO 2 /* seconds */ 55 56 #define FNAME_SIZE 128 57 #define IFNAME_SIZE 16 58 #define RECV_SIZE 1536 /* XXX delete this */ 59 60 /* 61 * How much room to leave for headers: 62 * 14: struct ether_header 63 * 20: struct ip 64 * 8: struct udphdr 65 * That's 42 but let's pad it out to 48 bytes. 66 */ 67 #define ETHER_SIZE 14 68 #define HEADER_SIZE 48 69 70 extern u_char bcea[6]; 71 extern char rootpath[FNAME_SIZE]; 72 extern char bootfile[FNAME_SIZE]; 73 extern char hostname[FNAME_SIZE]; 74 extern int hostnamelen; 75 extern char domainname[FNAME_SIZE]; 76 extern int domainnamelen; 77 extern char ifname[IFNAME_SIZE]; 78 79 /* All of these are in network order. */ 80 extern struct in_addr myip; 81 extern struct in_addr rootip; 82 extern struct in_addr swapip; 83 extern struct in_addr gateip; 84 extern struct in_addr nameip; 85 extern n_long netmask; 86 87 extern int debug; /* defined in the machdep sources */ 88 89 extern struct iodesc sockets[SOPEN_MAX]; 90 91 /* ARP/RevARP functions: */ 92 u_char *arpwhohas(struct iodesc *, struct in_addr); 93 void arp_reply(struct iodesc *, void *); 94 int rarp_getipaddress(int); 95 96 /* Link functions: */ 97 ssize_t sendether(struct iodesc *d, void *pkt, size_t len, 98 u_char *dea, int etype); 99 ssize_t readether(struct iodesc *d, void *pkt, size_t len, 100 time_t tleft, u_int16_t *etype); 101 102 ssize_t sendudp(struct iodesc *, void *, size_t); 103 ssize_t readudp(struct iodesc *, void *, size_t, time_t); 104 ssize_t sendrecv(struct iodesc *, 105 ssize_t (*)(struct iodesc *, void *, size_t), 106 void *, size_t, 107 ssize_t (*)(struct iodesc *, void *, size_t, time_t), 108 void *, size_t); 109 110 /* bootp/DHCP */ 111 void bootp(int, int); 112 113 /* Utilities: */ 114 char *ether_sprintf(u_char *); 115 int in_cksum(void *, int); 116 char *inet_ntoa(struct in_addr); 117 char *intoa(n_long); /* similar to inet_ntoa */ 118 n_long inet_addr(char *); 119 120 /* Machine-dependent functions: */ 121 time_t getsecs(void); 122