xref: /openbsd/sys/lib/libsa/net.h (revision 419596d7)
1*419596d7Spatrick /*	$OpenBSD: net.h,v 1.11 2020/05/18 17:01:02 patrick Exp $	*/
23a19b8d3Sderaadt /*	$NetBSD: net.h,v 1.10 1995/10/20 00:46:30 cgd Exp $	*/
3df930be7Sderaadt 
4df930be7Sderaadt /*
5df930be7Sderaadt  * Copyright (c) 1993 Adam Glass
6df930be7Sderaadt  * Copyright (c) 1992 Regents of the University of California.
7df930be7Sderaadt  * All rights reserved.
8df930be7Sderaadt  *
9df930be7Sderaadt  * This software was developed by the Computer Systems Engineering group
10df930be7Sderaadt  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
11df930be7Sderaadt  * contributed to Berkeley.
12df930be7Sderaadt  *
13df930be7Sderaadt  * Redistribution and use in source and binary forms, with or without
14df930be7Sderaadt  * modification, are permitted provided that the following conditions
15df930be7Sderaadt  * are met:
16df930be7Sderaadt  * 1. Redistributions of source code must retain the above copyright
17df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer.
18df930be7Sderaadt  * 2. Redistributions in binary form must reproduce the above copyright
19df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer in the
20df930be7Sderaadt  *    documentation and/or other materials provided with the distribution.
21df930be7Sderaadt  * 3. All advertising materials mentioning features or use of this software
22df930be7Sderaadt  *    must display the following acknowledgement:
23df930be7Sderaadt  *	This product includes software developed by the University of
24df930be7Sderaadt  *	California, Lawrence Berkeley Laboratory and its contributors.
25df930be7Sderaadt  * 4. Neither the name of the University nor the names of its contributors
26df930be7Sderaadt  *    may be used to endorse or promote products derived from this software
27df930be7Sderaadt  *    without specific prior written permission.
28df930be7Sderaadt  *
29df930be7Sderaadt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30df930be7Sderaadt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31df930be7Sderaadt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32df930be7Sderaadt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33df930be7Sderaadt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34df930be7Sderaadt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35df930be7Sderaadt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36df930be7Sderaadt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37df930be7Sderaadt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38df930be7Sderaadt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39df930be7Sderaadt  * SUCH DAMAGE.
40df930be7Sderaadt  */
41df930be7Sderaadt 
42df930be7Sderaadt #ifndef _KERNEL	/* XXX - see <netinet/in.h> */
43df930be7Sderaadt #undef __IPADDR
44df930be7Sderaadt #define __IPADDR(x)	htonl((u_int32_t)(x))
45df930be7Sderaadt #endif
46df930be7Sderaadt 
47df930be7Sderaadt #include "iodesc.h"
48df930be7Sderaadt 
49df930be7Sderaadt #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }
50df930be7Sderaadt 
51eb76c208Smpi /* Returns true if u_int32_t's on the same net */
52df930be7Sderaadt #define	SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m))
53df930be7Sderaadt 
54df930be7Sderaadt #define MACPY(s, d) bcopy((char *)s, (char *)d, 6)
55df930be7Sderaadt 
56df930be7Sderaadt #define MAXTMO 20	/* seconds */
57df930be7Sderaadt #define MINTMO 2	/* seconds */
58df930be7Sderaadt 
59df930be7Sderaadt #define FNAME_SIZE 128
60df930be7Sderaadt #define	IFNAME_SIZE 16
61df930be7Sderaadt #define RECV_SIZE 1536	/* XXX delete this */
62df930be7Sderaadt 
63df930be7Sderaadt /*
64df930be7Sderaadt  * How much room to leave for headers:
65df930be7Sderaadt  *  14: struct ether_header
66df930be7Sderaadt  *  20: struct ip
67df930be7Sderaadt  *   8: struct udphdr
68df930be7Sderaadt  * That's 42 but let's pad it out to 48 bytes.
69df930be7Sderaadt  */
70df930be7Sderaadt #define ETHER_SIZE 14
71e5d996e8Sguenther struct packet_header {
72e5d996e8Sguenther 	/* guarantee int alignment */
73e5d996e8Sguenther 	int	pad[48 / sizeof(int)];
74e5d996e8Sguenther };
75df930be7Sderaadt 
76df930be7Sderaadt extern	u_char bcea[6];
77df930be7Sderaadt extern	char rootpath[FNAME_SIZE];
78df930be7Sderaadt extern	char bootfile[FNAME_SIZE];
79df930be7Sderaadt extern	char hostname[FNAME_SIZE];
80df930be7Sderaadt extern	int hostnamelen;
81df930be7Sderaadt extern	char domainname[FNAME_SIZE];
82df930be7Sderaadt extern	int domainnamelen;
83df930be7Sderaadt extern	char ifname[IFNAME_SIZE];
84df930be7Sderaadt 
85df930be7Sderaadt /* All of these are in network order. */
86df930be7Sderaadt extern	struct in_addr myip;
87df930be7Sderaadt extern	struct in_addr rootip;
88df930be7Sderaadt extern	struct in_addr swapip;
89df930be7Sderaadt extern	struct in_addr gateip;
90df930be7Sderaadt extern	struct in_addr nameip;
91eb76c208Smpi extern	u_int32_t netmask;
92df930be7Sderaadt 
93df930be7Sderaadt extern	int debug;			/* defined in the machdep sources */
94df930be7Sderaadt 
95df930be7Sderaadt extern struct iodesc sockets[SOPEN_MAX];
96df930be7Sderaadt 
97df930be7Sderaadt /* ARP/RevARP functions: */
98c4071fd1Smillert u_char	*arpwhohas(struct iodesc *, struct in_addr);
99c4071fd1Smillert void	arp_reply(struct iodesc *, void *);
100c4071fd1Smillert int	rarp_getipaddress(int);
10158567fe6Smiod u_int32_t	ip_convertaddr(const char *);
102df930be7Sderaadt 
103df930be7Sderaadt /* Link functions: */
104c4071fd1Smillert ssize_t sendether(struct iodesc *d, void *pkt, size_t len,
105c4071fd1Smillert 	    u_char *dea, int etype);
106c4071fd1Smillert ssize_t readether(struct iodesc *d, void *pkt, size_t len,
107c4071fd1Smillert 	    time_t tleft, u_int16_t *etype);
108df930be7Sderaadt 
109c4071fd1Smillert ssize_t	sendudp(struct iodesc *, void *, size_t);
110c4071fd1Smillert ssize_t	readudp(struct iodesc *, void *, size_t, time_t);
1114f9e30d0Smillert ssize_t	sendrecv(struct iodesc *,
1124f9e30d0Smillert 	    ssize_t (*)(struct iodesc *, void *, size_t), void *, size_t,
113df930be7Sderaadt 	    ssize_t (*)(struct iodesc *, void *, size_t, time_t),
1144f9e30d0Smillert 	    void *, size_t);
115df930be7Sderaadt 
116df930be7Sderaadt /* Utilities: */
11758567fe6Smiod const char *ether_sprintf(const u_char *);
118*419596d7Spatrick u_int16_t in_cksum(const void *, size_t);
11958567fe6Smiod const char *inet_ntoa(struct in_addr);
12058567fe6Smiod const char *intoa(u_int32_t);		/* similar to inet_ntoa */
12158567fe6Smiod u_int32_t inet_addr(const char *);
122df930be7Sderaadt 
123df930be7Sderaadt /* Machine-dependent functions: */
124c4071fd1Smillert time_t	getsecs(void);
125