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net.h revision 1.1 
      1 /*
      2  * Copyright (c) 1993 Adam Glass
      3  * Copyright (c) 1992 Regents of the University of California.
      4  * All rights reserved.
      5  *
      6  * This software was developed by the Computer Systems Engineering group
      7  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      8  * contributed to Berkeley.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Lawrence Berkeley Laboratory and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	$Id: net.h,v 1.1 1994/05/08 16:11:28 brezak Exp $
     39  */
     40 
     41 #include "iodesc.h"
     42 
     43 #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }
     44 
     45 /* Returns true if n_long's on the same net */
     46 #define	SAMENET(a1, a2, m) ((a1 & m) == (a2 & m))
     47 
     48 #define MACPY(s, d) bcopy((char *)s, (char *)d, 6)
     49 
     50 #define MAXTMO 20	/* seconds */
     51 #define MINTMO 2	/* seconds */
     52 
     53 #define FNAME_SIZE 128
     54 #define	IFNAME_SIZE 16
     55 #define RECV_SIZE 1536	/* XXX delete this */
     56 
     57 /* Size of struct ether_header + struct ip + struct udphdr */
     58 #define ETHER_SIZE 14
     59 #define	HEADER_SIZE (ETHER_SIZE + 20 + 8)
     60 
     61 extern	u_char bcea[6];
     62 extern	char rootpath[FNAME_SIZE];
     63 extern	char bootfile[FNAME_SIZE];
     64 extern	char hostname[FNAME_SIZE];
     65 extern	char domainname[FNAME_SIZE];
     66 extern	char ifname[IFNAME_SIZE];
     67 
     68 extern	n_long myip;
     69 extern	n_long rootip;
     70 extern	n_long swapip;
     71 extern	n_long gateip;
     72 extern	n_long nameip;
     73 extern	n_long mask;
     74 
     75 extern	int debug;			/* defined in the machdep sources */
     76 
     77 extern struct iodesc sockets[SOPEN_MAX];
     78 
     79 /* ARP functions: */
     80 
     81 u_char	*arpwhohas __P((struct iodesc *, n_long));
     82 
     83 int	sendether __P((struct iodesc *, void *, int, u_char *, int));
     84 int	sendudp __P((struct iodesc *, void *, int));
     85 int	recvudp __P((struct iodesc *, void *, int, time_t));
     86 int	sendrecv __P((struct iodesc *, int (*)(struct iodesc *, void *, int),
     87 	    void *, int, int (*)(struct iodesc *, void *, int), void *, int));
     88 void	*checkudp __P((struct iodesc *, void *, int *));
     89 
     90 /* utilties: */
     91 
     92 char	*ether_sprintf __P((u_char *));
     93 int	in_cksum __P((void *, int));
     94 char	*intoa __P((n_long));			/* similar to inet_ntoa */
     95 
     96 /* Machine-dependent functions: */
     97 
     98 time_t	getsecs __P((void));
     99