usr/src/boot/lib/libstand/net.h

   1 /*      $NetBSD: net.h,v 1.10 1995/10/20 00:46:30 cgd 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  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * $FreeBSD$
  37  */
  38
  39 #ifndef _STAND_NET_H
  40 #define _STAND_NET_H
  41 #ifndef _KERNEL /* XXX - see <netinet/in.h> */
  42 #undef __IPADDR
  43 #define __IPADDR(x)     htonl((u_int32_t)(x))
  44 #endif
  45
  46 #include "iodesc.h"
  47
  48 #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }
  49
  50 enum net_proto {
  51         NET_NONE,
  52         NET_NFS,
  53         NET_TFTP
  54 };
  55
  56 /* Returns true if n_long's on the same net */
  57 #define SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m))
  58
  59 #define MACPY(s, d) bcopy((char *)s, (char *)d, 6)
  60
  61 #define MAXTMO 120      /* seconds */
  62 #define MINTMO 2        /* seconds */
  63
  64 #define FNAME_SIZE 128
  65 #define IFNAME_SIZE 16
  66 #define RECV_SIZE 1536  /* XXX delete this */
  67
  68 /*
  69  * How much room to leave for headers:
  70  *  14: struct ether_header
  71  *  20: struct ip
  72  *   8: struct udphdr
  73  * That's 42 but let's pad it out to 48 bytes.
  74  */
  75 #define ETHER_SIZE 14
  76 #define HEADER_SIZE 48
  77
  78 extern  u_char bcea[6];
  79 extern  char rootpath[FNAME_SIZE];
  80 extern  char bootfile[FNAME_SIZE];
  81 extern  char hostname[FNAME_SIZE];
  82 extern  int hostnamelen;
  83 extern  char domainname[FNAME_SIZE];
  84 extern  int domainnamelen;
  85 extern  int netproto;
  86 extern  char ifname[IFNAME_SIZE];
  87
  88 /* All of these are in network order. */
  89 extern  struct in_addr myip;
  90 extern  struct in_addr rootip;
  91 extern  struct in_addr swapip;
  92 extern  struct in_addr gateip;
  93 extern  struct in_addr nameip;
  94 extern  struct in_addr tftpip;
  95 extern  n_long netmask;
  96 extern  u_int intf_mtu;
  97
  98 extern  int debug;                      /* defined in the machdep sources */
  99
 100 extern struct iodesc sockets[SOPEN_MAX];
 101
 102 /* ARP/RevARP functions: */
 103 u_char  *arpwhohas(struct iodesc *, struct in_addr);
 104 void    arp_reply(struct iodesc *, void *);
 105 int     rarp_getipaddress(int);
 106
 107 /* Link functions: */
 108 ssize_t sendether(struct iodesc *d, void *pkt, size_t len,
 109                         u_char *dea, int etype);
 110 ssize_t readether(struct iodesc *d, void *pkt, size_t len,
 111                         time_t tleft, u_int16_t *etype);
 112
 113 ssize_t sendudp(struct iodesc *, void *, size_t);
 114 ssize_t readudp(struct iodesc *, void *, size_t, time_t);
 115 ssize_t sendrecv(struct iodesc *,
 116                       ssize_t (*)(struct iodesc *, void *, size_t),
 117                         void *, size_t,
 118                         ssize_t (*)(struct iodesc *, void *, size_t, time_t),
 119                         void *, size_t);
 120
 121 /* bootp/DHCP */
 122 void    bootp(int, int);
 123
 124 /* Utilities: */
 125 char    *ether_sprintf(u_char *);
 126 int     in_cksum(void *, int);
 127 char    *inet_ntoa(struct in_addr);
 128 char    *intoa(n_long);         /* similar to inet_ntoa */
 129 n_long  inet_addr(char *);
 130
 131 /* Machine-dependent functions: */
 132 time_t  getsecs(void);
 133 #endif  /* ! _STAND_NET_H */