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 extern struct iodesc sockets[SOPEN_MAX];
97
98 /* ARP/RevARP functions: */
99 u_char *arpwhohas(struct iodesc *, struct in_addr);
100 void arp_reply(struct iodesc *, void *);
101 int rarp_getipaddress(int);
102
103 /* Link functions: */
104 ssize_t sendether(struct iodesc *d, void *pkt, size_t len,
105 u_char *dea, int etype);
106 ssize_t readether(struct iodesc *, void **, void **, time_t, u_int16_t *);
107
108 ssize_t sendip(struct iodesc *, void *, size_t, uint8_t);
109 ssize_t readip(struct iodesc *, void **, void **, time_t, uint8_t);
110 ssize_t sendudp(struct iodesc *, void *, size_t);
111 ssize_t readudp(struct iodesc *, void **, void **, time_t);
112 ssize_t sendrecv(struct iodesc *,
113 ssize_t (*)(struct iodesc *, void *, size_t),
114 void *, size_t,
115 ssize_t (*)(struct iodesc *, void **, void **, time_t),
116 void **, void **);
117
118 /* bootp/DHCP */
119 void bootp(int);
120
121 /* Utilities: */
122 char *ether_sprintf(u_char *);
123 int in_cksum(void *, int);
124 char *inet_ntoa(struct in_addr);
125 char *intoa(n_long); /* similar to inet_ntoa */
126 n_long inet_addr(char *);
127
128 #endif /* ! _STAND_NET_H */