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: stable/11/stand/libsa/net.h 332154 2018-04-06 21:37:25Z kevans $
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((uint32_t)(x))
44#endif
45
46#include "iodesc.h"
47
48#define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }
49
50enum 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
78extern	u_char bcea[6];
79extern	char rootpath[FNAME_SIZE];
80extern	char bootfile[FNAME_SIZE];
81extern	char hostname[FNAME_SIZE];
82extern	int hostnamelen;
83extern	char domainname[FNAME_SIZE];
84extern	int domainnamelen;
85extern	int netproto;
86extern	char ifname[IFNAME_SIZE];
87
88/* All of these are in network order. */
89extern	struct in_addr myip;
90extern	struct in_addr rootip;
91extern	struct in_addr swapip;
92extern	struct in_addr gateip;
93extern	struct in_addr nameip;
94extern	n_long netmask;
95extern	u_int intf_mtu;
96
97extern	int debug;			/* defined in the machdep sources */
98
99extern struct iodesc sockets[SOPEN_MAX];
100
101/* ARP/RevARP functions: */
102u_char	*arpwhohas(struct iodesc *, struct in_addr);
103void	arp_reply(struct iodesc *, void *);
104int	rarp_getipaddress(int);
105
106/* Link functions: */
107ssize_t sendether(struct iodesc *d, void *pkt, size_t len,
108			u_char *dea, int etype);
109ssize_t readether(struct iodesc *, void **, void **, time_t, uint16_t *);
110
111ssize_t	sendip(struct iodesc *, void *, size_t, uint8_t);
112ssize_t	readip(struct iodesc *, void **, void **, time_t, uint8_t);
113ssize_t	sendudp(struct iodesc *, void *, size_t);
114ssize_t	readudp(struct iodesc *, void **, void **, time_t);
115ssize_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 *),
120			void **, void **, void *);
121
122/* bootp/DHCP */
123void	bootp(int);
124
125/* Utilities: */
126char	*ether_sprintf(u_char *);
127int	in_cksum(void *, int);
128char	*inet_ntoa(struct in_addr);
129char	*intoa(n_long);		/* similar to inet_ntoa */
130n_long	inet_addr(char *);
131
132#endif /* ! _STAND_NET_H */
133