/* $NetBSD: net.h,v 1.27 2014/03/29 14:30:16 jakllsch Exp $ */ /* * Copyright (c) 1993 Adam Glass * Copyright (c) 1992 Regents of the University of California. * All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include /* for ETHER_ADDR_LEN */ #include #include #ifndef _KERNEL /* XXX - see */ #undef __IPADDR #define __IPADDR(x) htonl((u_int32_t)(x)) #endif #ifdef _STANDALONE #include #else #include #endif #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } /* Returns true if n_long's on the same net */ #define SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m)) #define MACPY(s, d) memcpy(d, s, ETHER_ADDR_LEN) #define MAXTMO 20 /* seconds */ #define MINTMO 2 /* seconds */ #define FNAME_SIZE 128 #define IFNAME_SIZE 16 #define RECV_SIZE 1536 /* XXX delete this */ /* * How much room to leave for headers in UDP packets: * 14: struct ether_header * 20: struct ip * 8: struct udphdr * That's 42 but let's pad it out to 48 bytes. */ #define ETHERNET_HEADER_SIZE 14 #define IP_HEADER_SIZE 20 #define UDP_HEADER_SIZE 8 #define UDP_TOTAL_HEADER_SIZE (ETHERNET_HEADER_SIZE + IP_HEADER_SIZE + UDP_HEADER_SIZE) /* * How much room to leave for headers in TCP packets: * 14: struct ether_header * 20: struct ip * 20: struct tcphdr */ #define TCP_HEADER_SIZE 20 #define TCP_TOTAL_HEADER_SIZE (ETHERNET_HEADER_SIZE + IP_HEADER_SIZE + TCP_HEADER_SIZE) extern u_char bcea[ETHER_ADDR_LEN]; extern char rootpath[FNAME_SIZE]; extern char bootfile[FNAME_SIZE]; extern char hostname[FNAME_SIZE]; /* All of these are in network order. */ extern struct in_addr myip; extern struct in_addr rootip; extern struct in_addr gateip; extern n_long netmask; extern int debug; /* defined in the machdep sources */ /* ARP/RevARP functions: */ u_char *arpwhohas(struct iodesc *, struct in_addr); void arp_reply(struct iodesc *, void *); int rarp_getipaddress(int); /* Link functions: */ ssize_t sendether(struct iodesc *, void *, size_t, u_char *, int); ssize_t readether(struct iodesc *, void *, size_t, saseconds_t, u_int16_t *); ssize_t sendip __P((struct iodesc *, void *, size_t, u_int8_t)); ssize_t readip __P((struct iodesc *, void *, size_t, time_t, u_int8_t)); ssize_t sendudp(struct iodesc *, void *, size_t); ssize_t readudp(struct iodesc *, void *, size_t, saseconds_t); int tcp_connect __P((struct iodesc *)); ssize_t sendtcp __P((struct iodesc *, void *, size_t)); ssize_t readtcp __P((struct iodesc *, void *, size_t, time_t)); ssize_t sendrecv(struct iodesc *, ssize_t (*)(struct iodesc *, void *, size_t), void *, size_t, ssize_t (*)(struct iodesc *, void *, size_t, saseconds_t), void *, size_t); /* Utilities: */ char *ether_sprintf(const u_char *); int ip_cksum(const void *, size_t); /* Machine-dependent functions: */ #ifdef _STANDALONE /* XXX for mount_nfs(8) SMALLPROG hack */ satime_t getsecs(void); #endif