1 /* $OpenBSD: net.h,v 1.7 2003/08/11 06:23:09 deraadt 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 n_long'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 #define HEADER_SIZE 48
72
73 extern u_char bcea[6];
74 extern char rootpath[FNAME_SIZE];
75 extern char bootfile[FNAME_SIZE];
76 extern char hostname[FNAME_SIZE];
77 extern int hostnamelen;
78 extern char domainname[FNAME_SIZE];
79 extern int domainnamelen;
80 extern char ifname[IFNAME_SIZE];
81
82 /* All of these are in network order. */
83 extern struct in_addr myip;
84 extern struct in_addr rootip;
85 extern struct in_addr swapip;
86 extern struct in_addr gateip;
87 extern struct in_addr nameip;
88 extern n_long netmask;
89
90 extern int debug; /* defined in the machdep sources */
91
92 extern struct iodesc sockets[SOPEN_MAX];
93
94 /* ARP/RevARP functions: */
95 u_char *arpwhohas(struct iodesc *, struct in_addr);
96 void arp_reply(struct iodesc *, void *);
97 int rarp_getipaddress(int);
98 n_long ip_convertaddr(char *);
99
100 /* Link functions: */
101 ssize_t sendether(struct iodesc *d, void *pkt, size_t len,
102 u_char *dea, int etype);
103 ssize_t readether(struct iodesc *d, void *pkt, size_t len,
104 time_t tleft, u_int16_t *etype);
105
106 ssize_t sendudp(struct iodesc *, void *, size_t);
107 ssize_t readudp(struct iodesc *, void *, size_t, time_t);
108 ssize_t sendrecv(struct iodesc *,
109 ssize_t (*)(struct iodesc *, void *, size_t), void *, size_t,
110 ssize_t (*)(struct iodesc *, void *, size_t, time_t),
111 void *, size_t);
112
113 /* Utilities: */
114 char *ether_sprintf(u_char *);
115 int in_cksum(void *, int);
116 char *inet_ntoa(struct in_addr);
117 char *intoa(n_long); /* similar to inet_ntoa */
118 n_long inet_addr(char *);
119
120 /* Machine-dependent functions: */
121 time_t getsecs(void);