xref: /freebsd/stand/libsa/net.h (revision d8a0fe102c0cfdfcd5b818f850eff09d8536c9bc)
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  * 3. 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	n_long netmask;
95 extern	u_int intf_mtu;
96 
97 extern	int debug;			/* defined in the machdep sources */
98 
99 extern struct iodesc sockets[SOPEN_MAX];
100 
101 /* ARP/RevARP functions: */
102 u_char	*arpwhohas(struct iodesc *, struct in_addr);
103 void	arp_reply(struct iodesc *, void *);
104 int	rarp_getipaddress(int);
105 
106 /* Link functions: */
107 ssize_t sendether(struct iodesc *d, void *pkt, size_t len,
108 			u_char *dea, int etype);
109 ssize_t readether(struct iodesc *, void **, void **, time_t, uint16_t *);
110 
111 ssize_t	sendip(struct iodesc *, void *, size_t, uint8_t);
112 ssize_t	readip(struct iodesc *, void **, void **, time_t, uint8_t);
113 ssize_t	sendudp(struct iodesc *, void *, size_t);
114 ssize_t	readudp(struct iodesc *, void **, void **, 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 **, void **, time_t),
119 			void **, void **);
120 
121 /* bootp/DHCP */
122 void	bootp(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 */
134