1 | /* $NetBSD: if_arc.h,v 1.22 2008/02/20 17:05:52 matt Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1982, 1986, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. Neither the name of the University nor the names of its contributors |
16 | * may be used to endorse or promote products derived from this software |
17 | * without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | * SUCH DAMAGE. |
30 | * |
31 | * from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp |
32 | * @(#)if_ether.h 8.1 (Berkeley) 6/10/93 |
33 | */ |
34 | |
35 | #ifndef _NET_IF_ARC_H_ |
36 | #define _NET_IF_ARC_H_ |
37 | |
38 | /* |
39 | * Arcnet address - 1 octets |
40 | * don't know who uses this. |
41 | */ |
42 | struct arc_addr { |
43 | uint8_t arc_addr_octet[1]; |
44 | } __packed; |
45 | |
46 | /* |
47 | * Structure of a 2.5MB/s Arcnet header. |
48 | * as given to interface code. |
49 | */ |
50 | struct { |
51 | uint8_t ; |
52 | uint8_t ; |
53 | uint8_t ; |
54 | /* |
55 | * only present for newstyle encoding with LL fragmentation. |
56 | * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead. |
57 | */ |
58 | uint8_t ; |
59 | uint16_t ; |
60 | |
61 | /* |
62 | * only present in exception packets (arc_flag == 0xff) |
63 | */ |
64 | uint8_t ; /* same as arc_type */ |
65 | uint8_t ; /* real flag value */ |
66 | uint16_t ; /* real seqid value */ |
67 | } __packed; |
68 | |
69 | #define ARC_ADDR_LEN 1 |
70 | |
71 | #define ARC_HDRLEN 3 |
72 | #define ARC_HDRNEWLEN 6 |
73 | #define ARC_HDRNEWLEN_EXC 10 |
74 | |
75 | /* these lengths are data link layer length - 2*ARC_ADDR_LEN */ |
76 | #define ARC_MIN_LEN 1 |
77 | #define ARC_MIN_FORBID_LEN 254 |
78 | #define ARC_MAX_FORBID_LEN 256 |
79 | #define ARC_MAX_LEN 508 |
80 | |
81 | |
82 | /* RFC 1051 */ |
83 | #define ARCTYPE_IP_OLD 240 /* IP protocol */ |
84 | #define ARCTYPE_ARP_OLD 241 /* address resolution protocol */ |
85 | |
86 | /* RFC 1201 */ |
87 | #define ARCTYPE_IP 212 /* IP protocol */ |
88 | #define ARCTYPE_ARP 213 /* address resolution protocol */ |
89 | #define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */ |
90 | |
91 | #define ARCTYPE_ATALK 221 /* Appletalk */ |
92 | #define ARCTYPE_BANIAN 247 /* Banyan Vines */ |
93 | #define ARCTYPE_IPX 250 /* Novell IPX */ |
94 | |
95 | #define ARCTYPE_INET6 0xc4 /* IPng */ |
96 | #define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ |
97 | |
98 | #define ARCMTU 507 |
99 | #define ARCMIN 0 |
100 | |
101 | #define ARC_PHDS_MAXMTU 60480 |
102 | |
103 | struct arccom { |
104 | struct ifnet ac_if; /* network-visible interface */ |
105 | |
106 | uint16_t ac_seqid; /* seq. id used by PHDS encap. */ |
107 | |
108 | struct ac_frag { |
109 | uint8_t af_maxflag; /* from first packet */ |
110 | uint8_t af_lastseen; /* last split flag seen */ |
111 | uint16_t af_seqid; |
112 | struct mbuf *af_packet; |
113 | } ac_fragtab[256]; /* indexed by sender ll address */ |
114 | |
115 | }; |
116 | |
117 | #ifdef _KERNEL |
118 | extern uint8_t arcbroadcastaddr; |
119 | extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */ |
120 | |
121 | void arc_ifattach(struct ifnet *, uint8_t); |
122 | char *arc_sprintf(uint8_t *); |
123 | int arc_isphds(uint8_t); |
124 | #endif |
125 | |
126 | #endif /* !_NET_IF_ARC_H_ */ |
127 | |