1 /* $NetBSD: net.h,v 1.25 2009/01/18 02:59:02 tsutsui 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 41 #include <netinet/in.h> 42 #include <netinet/in_systm.h> 43 44 #ifndef _KERNEL /* XXX - see <netinet/in.h> */ 45 #undef __IPADDR 46 #define __IPADDR(x) htonl((u_int32_t)(x)) 47 #endif 48 49 #ifdef _STANDALONE 50 #include <lib/libsa/iodesc.h> 51 #else 52 #include <iodesc.h> 53 #endif 54 55 #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } 56 57 /* Returns true if n_long's on the same net */ 58 #define SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m)) 59 60 #define MACPY(s, d) memcpy(d, s, 6) 61 62 #define MAXTMO 20 /* seconds */ 63 #define MINTMO 2 /* seconds */ 64 65 #define FNAME_SIZE 128 66 #define IFNAME_SIZE 16 67 #define RECV_SIZE 1536 /* XXX delete this */ 68 69 /* 70 * How much room to leave for headers: 71 * 14: struct ether_header 72 * 20: struct ip 73 * 8: struct udphdr 74 * That's 42 but let's pad it out to 48 bytes. 75 */ 76 #define ETHER_SIZE 14 77 #define HEADER_SIZE 48 78 79 extern u_char bcea[6]; 80 extern char rootpath[FNAME_SIZE]; 81 extern char bootfile[FNAME_SIZE]; 82 extern char hostname[FNAME_SIZE]; 83 84 /* All of these are in network order. */ 85 extern struct in_addr myip; 86 extern struct in_addr rootip; 87 extern struct in_addr gateip; 88 extern n_long netmask; 89 90 extern int debug; /* defined in the machdep sources */ 91 92 /* ARP/RevARP functions: */ 93 u_char *arpwhohas(struct iodesc *, struct in_addr); 94 void arp_reply(struct iodesc *, void *); 95 int rarp_getipaddress(int); 96 97 /* Link functions: */ 98 ssize_t sendether(struct iodesc *, void *, size_t, u_char *, int); 99 ssize_t readether(struct iodesc *, void *, size_t, saseconds_t, u_int16_t *); 100 101 ssize_t sendudp(struct iodesc *, void *, size_t); 102 ssize_t readudp(struct iodesc *, void *, size_t, saseconds_t); 103 ssize_t sendrecv(struct iodesc *, ssize_t (*)(struct iodesc *, void *, size_t), 104 void *, size_t, ssize_t (*)(struct iodesc *, void *, size_t, saseconds_t), 105 void *, size_t); 106 107 /* Utilities: */ 108 char *ether_sprintf(const u_char *); 109 int ip_cksum(const void *, size_t); 110 111 /* Machine-dependent functions: */ 112 #ifdef _STANDALONE /* XXX for mount_nfs(8) SMALLPROG hack */ 113 satime_t getsecs(void); 114 #endif 115