1 /* $OpenBSD: net.h,v 1.7 2003/08/11 06:23:09 deraadt Exp $ */ 2 /* $NetBSD: net.h,v 1.10 1995/10/20 00:46:30 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1993 Adam Glass 6 * Copyright (c) 1992 Regents of the University of California. 7 * All rights reserved. 8 * 9 * This software was developed by the Computer Systems Engineering group 10 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 11 * contributed to Berkeley. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Lawrence Berkeley Laboratory and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 */ 41 42 #ifndef _KERNEL /* XXX - see <netinet/in.h> */ 43 #undef __IPADDR 44 #define __IPADDR(x) htonl((u_int32_t)(x)) 45 #endif 46 47 #include "iodesc.h" 48 49 #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } 50 51 /* Returns true if n_long's on the same net */ 52 #define SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m)) 53 54 #define MACPY(s, d) bcopy((char *)s, (char *)d, 6) 55 56 #define MAXTMO 20 /* seconds */ 57 #define MINTMO 2 /* seconds */ 58 59 #define FNAME_SIZE 128 60 #define IFNAME_SIZE 16 61 #define RECV_SIZE 1536 /* XXX delete this */ 62 63 /* 64 * How much room to leave for headers: 65 * 14: struct ether_header 66 * 20: struct ip 67 * 8: struct udphdr 68 * That's 42 but let's pad it out to 48 bytes. 69 */ 70 #define ETHER_SIZE 14 71 #define HEADER_SIZE 48 72 73 extern u_char bcea[6]; 74 extern char rootpath[FNAME_SIZE]; 75 extern char bootfile[FNAME_SIZE]; 76 extern char hostname[FNAME_SIZE]; 77 extern int hostnamelen; 78 extern char domainname[FNAME_SIZE]; 79 extern int domainnamelen; 80 extern char ifname[IFNAME_SIZE]; 81 82 /* All of these are in network order. */ 83 extern struct in_addr myip; 84 extern struct in_addr rootip; 85 extern struct in_addr swapip; 86 extern struct in_addr gateip; 87 extern struct in_addr nameip; 88 extern n_long netmask; 89 90 extern int debug; /* defined in the machdep sources */ 91 92 extern struct iodesc sockets[SOPEN_MAX]; 93 94 /* ARP/RevARP functions: */ 95 u_char *arpwhohas(struct iodesc *, struct in_addr); 96 void arp_reply(struct iodesc *, void *); 97 int rarp_getipaddress(int); 98 n_long ip_convertaddr(char *); 99 100 /* Link functions: */ 101 ssize_t sendether(struct iodesc *d, void *pkt, size_t len, 102 u_char *dea, int etype); 103 ssize_t readether(struct iodesc *d, void *pkt, size_t len, 104 time_t tleft, u_int16_t *etype); 105 106 ssize_t sendudp(struct iodesc *, void *, size_t); 107 ssize_t readudp(struct iodesc *, void *, size_t, time_t); 108 ssize_t sendrecv(struct iodesc *, 109 ssize_t (*)(struct iodesc *, void *, size_t), void *, size_t, 110 ssize_t (*)(struct iodesc *, void *, size_t, time_t), 111 void *, size_t); 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