1 /* $OpenBSD: net.h,v 1.11 2020/05/18 17:01:02 patrick 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 u_int32_t'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 struct packet_header { 72 /* guarantee int alignment */ 73 int pad[48 / sizeof(int)]; 74 }; 75 76 extern u_char bcea[6]; 77 extern char rootpath[FNAME_SIZE]; 78 extern char bootfile[FNAME_SIZE]; 79 extern char hostname[FNAME_SIZE]; 80 extern int hostnamelen; 81 extern char domainname[FNAME_SIZE]; 82 extern int domainnamelen; 83 extern char ifname[IFNAME_SIZE]; 84 85 /* All of these are in network order. */ 86 extern struct in_addr myip; 87 extern struct in_addr rootip; 88 extern struct in_addr swapip; 89 extern struct in_addr gateip; 90 extern struct in_addr nameip; 91 extern u_int32_t netmask; 92 93 extern int debug; /* defined in the machdep sources */ 94 95 extern struct iodesc sockets[SOPEN_MAX]; 96 97 /* ARP/RevARP functions: */ 98 u_char *arpwhohas(struct iodesc *, struct in_addr); 99 void arp_reply(struct iodesc *, void *); 100 int rarp_getipaddress(int); 101 u_int32_t ip_convertaddr(const char *); 102 103 /* Link functions: */ 104 ssize_t sendether(struct iodesc *d, void *pkt, size_t len, 105 u_char *dea, int etype); 106 ssize_t readether(struct iodesc *d, void *pkt, size_t len, 107 time_t tleft, u_int16_t *etype); 108 109 ssize_t sendudp(struct iodesc *, void *, size_t); 110 ssize_t readudp(struct iodesc *, void *, size_t, time_t); 111 ssize_t sendrecv(struct iodesc *, 112 ssize_t (*)(struct iodesc *, void *, size_t), void *, size_t, 113 ssize_t (*)(struct iodesc *, void *, size_t, time_t), 114 void *, size_t); 115 116 /* Utilities: */ 117 const char *ether_sprintf(const u_char *); 118 u_int16_t in_cksum(const void *, size_t); 119 const char *inet_ntoa(struct in_addr); 120 const char *intoa(u_int32_t); /* similar to inet_ntoa */ 121 u_int32_t inet_addr(const char *); 122 123 /* Machine-dependent functions: */ 124 time_t getsecs(void); 125