1 | /* $NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp $ */ |
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2 | /* $FreeBSD$ */ |
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3 | |
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4 | /*- |
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5 | * Copyright (c) 1982, 1986, 1993 |
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6 | * The Regents of the University of California. All rights reserved. |
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7 | * |
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8 | * Redistribution and use in source and binary forms, with or without |
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9 | * modification, are permitted provided that the following conditions |
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10 | * are met: |
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11 | * 1. Redistributions of source code must retain the above copyright |
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12 | * notice, this list of conditions and the following disclaimer. |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * 3. Neither the name of the University nor the names of its contributors |
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17 | * may be used to endorse or promote products derived from this software |
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18 | * without specific prior written permission. |
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19 | * |
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20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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30 | * SUCH DAMAGE. |
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31 | * |
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32 | * from: NetBSD: if_ether.h,v 1.10 1994/06/29 06:37:55 cgd Exp |
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33 | * @(#)if_ether.h 8.1 (Berkeley) 6/10/93 |
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34 | */ |
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35 | |
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36 | #ifndef _NET_IF_ARC_H_ |
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37 | #define _NET_IF_ARC_H_ |
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38 | |
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39 | /* |
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40 | * Arcnet address - 1 octets |
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41 | * don't know who uses this. |
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42 | */ |
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43 | struct arc_addr { |
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44 | u_int8_t arc_addr_octet[1]; |
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45 | } __packed; |
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46 | |
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47 | /* |
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48 | * Structure of a 2.5MB/s Arcnet header. |
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49 | * as given to interface code. |
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50 | */ |
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51 | struct arc_header { |
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52 | u_int8_t arc_shost; |
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53 | u_int8_t arc_dhost; |
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54 | u_int8_t arc_type; |
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55 | /* |
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56 | * only present for newstyle encoding with LL fragmentation. |
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57 | * Don't use sizeof(anything), use ARC_HDR{,NEW}LEN instead. |
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58 | */ |
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59 | u_int8_t arc_flag; |
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60 | u_int16_t arc_seqid; |
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61 | |
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62 | /* |
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63 | * only present in exception packets (arc_flag == 0xff) |
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64 | */ |
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65 | u_int8_t arc_type2; /* same as arc_type */ |
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66 | u_int8_t arc_flag2; /* real flag value */ |
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67 | u_int16_t arc_seqid2; /* real seqid value */ |
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68 | } __packed; |
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69 | |
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70 | #define ARC_ADDR_LEN 1 |
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71 | |
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72 | #define ARC_HDRLEN 3 |
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73 | #define ARC_HDRNEWLEN 6 |
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74 | #define ARC_HDRNEWLEN_EXC 10 |
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75 | |
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76 | /* these lengths are data link layer length - 2 * ARC_ADDR_LEN */ |
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77 | #define ARC_MIN_LEN 1 |
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78 | #define ARC_MIN_FORBID_LEN 254 |
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79 | #define ARC_MAX_FORBID_LEN 256 |
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80 | #define ARC_MAX_LEN 508 |
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81 | #define ARC_MAX_DATA 504 |
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82 | |
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83 | /* RFC 1051 */ |
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84 | #define ARCTYPE_IP_OLD 240 /* IP protocol */ |
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85 | #define ARCTYPE_ARP_OLD 241 /* address resolution protocol */ |
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86 | |
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87 | /* RFC 1201 */ |
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88 | #define ARCTYPE_IP 212 /* IP protocol */ |
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89 | #define ARCTYPE_ARP 213 /* address resolution protocol */ |
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90 | #define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */ |
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91 | |
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92 | #define ARCTYPE_ATALK 221 /* Appletalk */ |
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93 | #define ARCTYPE_BANIAN 247 /* Banyan Vines */ |
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94 | #define ARCTYPE_IPX 250 /* Novell IPX */ |
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95 | |
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96 | #define ARCTYPE_INET6 0xc4 /* IPng */ |
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97 | #define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ |
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98 | |
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99 | #define ARCMTU 507 |
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100 | #define ARCMIN 0 |
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101 | |
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102 | #define ARC_PHDS_MAXMTU 60480 |
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103 | |
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104 | struct arccom { |
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105 | struct ifnet *ac_ifp; /* network-visible interface */ |
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106 | |
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107 | u_int16_t ac_seqid; /* seq. id used by PHDS encap. */ |
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108 | |
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109 | u_int8_t arc_shost; |
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110 | u_int8_t arc_dhost; |
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111 | u_int8_t arc_type; |
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112 | |
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113 | u_int8_t dummy0; |
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114 | u_int16_t dummy1; |
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115 | int sflag, fsflag, rsflag; |
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116 | struct mbuf *curr_frag; |
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117 | |
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118 | struct ac_frag { |
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119 | u_int8_t af_maxflag; /* from first packet */ |
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120 | u_int8_t af_lastseen; /* last split flag seen */ |
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121 | u_int16_t af_seqid; |
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122 | struct mbuf *af_packet; |
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123 | } ac_fragtab[256]; /* indexed by sender ll address */ |
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124 | }; |
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125 | |
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126 | #ifdef _KERNEL |
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127 | extern u_int8_t arcbroadcastaddr; |
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128 | extern int arc_ipmtu; /* XXX new ip only, no RFC 1051! */ |
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129 | |
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130 | void arc_ifattach(struct ifnet *, u_int8_t); |
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131 | void arc_ifdetach(struct ifnet *); |
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132 | void arc_storelladdr(struct ifnet *, u_int8_t); |
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133 | int arc_isphds(u_int8_t); |
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134 | void arc_input(struct ifnet *, struct mbuf *); |
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135 | int arc_output(struct ifnet *, struct mbuf *, |
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136 | const struct sockaddr *, struct route *); |
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137 | int arc_ioctl(struct ifnet *, u_long, caddr_t); |
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138 | |
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139 | void arc_frag_init(struct ifnet *); |
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140 | struct mbuf * arc_frag_next(struct ifnet *); |
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141 | #endif |
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142 | |
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143 | #endif /* _NET_IF_ARC_H_ */ |
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