xref: /illumos-gate/usr/src/boot/libsa/net.h (revision 22028508fd28d36ff74dc02c5774a8ba1f0db045)
1 /*
2  * Copyright (c) 1993 Adam Glass
3  * Copyright (c) 1992 Regents of the University of California.
4  * All rights reserved.
5  *
6  * This software was developed by the Computer Systems Engineering group
7  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
8  * contributed to Berkeley.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #ifndef _STAND_NET_H
36 #define	_STAND_NET_H
37 #ifndef _KERNEL	/* XXX - see <netinet/in.h> */
38 #undef __IPADDR
39 #define __IPADDR(x)	htonl((u_int32_t)(x))
40 #endif
41 
42 #include "iodesc.h"
43 
44 #define BA { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }
45 
46 enum net_proto {
47 	NET_NONE,
48 	NET_NFS,
49 	NET_TFTP
50 };
51 
52 /* Returns true if n_long's on the same net */
53 #define	SAMENET(a1, a2, m) ((a1.s_addr & m) == (a2.s_addr & m))
54 
55 #define MACPY(s, d) bcopy((char *)s, (char *)d, 6)
56 
57 #define MAXTMO 120	/* seconds */
58 #define MINTMO 2	/* seconds */
59 
60 #define FNAME_SIZE 128
61 #define	IFNAME_SIZE 16
62 #define RECV_SIZE 1536	/* XXX delete this */
63 
64 /*
65  * How much room to leave for headers:
66  *  14: struct ether_header
67  *  20: struct ip
68  *   8: struct udphdr
69  * That's 42 but let's pad it out to 48 bytes.
70  */
71 #define ETHER_SIZE 14
72 #define	HEADER_SIZE 48
73 
74 extern	u_char bcea[6];
75 extern	char rootpath[FNAME_SIZE];
76 extern	char bootfile[FNAME_SIZE];
77 extern	char hostname[FNAME_SIZE];
78 extern	int hostnamelen;
79 extern	char domainname[FNAME_SIZE];
80 extern	int domainnamelen;
81 extern	int netproto;
82 extern	char ifname[IFNAME_SIZE];
83 
84 /* All of these are in network order. */
85 extern	struct in_addr myip;
86 extern	struct in_addr rootip;
87 extern	struct in_addr swapip;
88 extern	struct in_addr gateip;
89 extern	struct in_addr nameip;
90 extern	struct in_addr tftpip;
91 extern	n_long netmask;
92 extern	u_int intf_mtu;
93 
94 extern	int debug;			/* defined in the machdep sources */
95 
96 /* ARP/RevARP functions: */
97 u_char	*arpwhohas(struct iodesc *, struct in_addr);
98 void	arp_reply(struct iodesc *, void *);
99 int	rarp_getipaddress(int);
100 
101 /* Link functions: */
102 ssize_t sendether(struct iodesc *d, void *pkt, size_t len,
103 			u_char *dea, int etype);
104 ssize_t readether(struct iodesc *, void **, void **, time_t, u_int16_t *);
105 
106 ssize_t	sendip(struct iodesc *, void *, size_t, uint8_t);
107 ssize_t	readip(struct iodesc *, void **, void **, time_t, uint8_t);
108 ssize_t	sendudp(struct iodesc *, void *, size_t);
109 ssize_t	readudp(struct iodesc *, void **, void **, time_t);
110 ssize_t	sendrecv(struct iodesc *,
111 		      ssize_t (*)(struct iodesc *, void *, size_t),
112 			void *, size_t,
113 		        ssize_t (*)(struct iodesc *, void **, void **, time_t,
114 			  void *),
115 			void **, void **, void *);
116 
117 /* bootp/DHCP */
118 void	bootp(int);
119 
120 /* Utilities: */
121 char	*ether_sprintf(u_char *);
122 int	in_cksum(void *, int);
123 char	*inet_ntoa(struct in_addr);
124 char	*intoa(n_long);		/* similar to inet_ntoa */
125 n_long	inet_addr(char *);
126 
127 #endif	/* ! _STAND_NET_H */
128