1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 /* Copyright (c) 1990 Mentat Inc. */ 26 27 #ifndef _INET_ARP_H 28 #define _INET_ARP_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * Warning: the interfaces described in this file are private to the 40 * implementation. They may change at any time without notice and are not 41 * documented. Do not depend on them. 42 */ 43 44 #define ARP_REQUEST 1 45 #define ARP_RESPONSE 2 46 #define RARP_REQUEST 3 47 #define RARP_RESPONSE 4 48 49 #define AR_IOCTL (((unsigned)'A' & 0xFF)<<8) 50 #define CMD_IN_PROGRESS 0x10000 51 52 #define AR_ENTRY_ADD (AR_IOCTL + 1) 53 #define AR_ENTRY_DELETE (AR_IOCTL + 2) 54 #define AR_ENTRY_QUERY (AR_IOCTL + 3) 55 #define AR_ENTRY_SQUERY (AR_IOCTL + 6) 56 #define AR_MAPPING_ADD (AR_IOCTL + 7) 57 #define AR_CLIENT_NOTIFY (AR_IOCTL + 8) 58 #define AR_INTERFACE_UP (AR_IOCTL + 9) 59 #define AR_INTERFACE_DOWN (AR_IOCTL + 10) 60 #define AR_INTERFACE_ON (AR_IOCTL + 12) 61 #define AR_INTERFACE_OFF (AR_IOCTL + 13) 62 #define AR_DLPIOP_DONE (AR_IOCTL + 14) 63 /* 64 * This is not an ARP command per se, it is used to interface between 65 * ARP and IP during close. 66 */ 67 #define AR_ARP_CLOSING (AR_IOCTL + 16) 68 #define AR_ARP_EXTEND (AR_IOCTL + 17) 69 70 /* Both ace_flags and area_flags; must also modify arp.c in mdb */ 71 #define ACE_F_PERMANENT 0x0001 72 #define ACE_F_PUBLISH 0x0002 73 #define ACE_F_DYING 0x0004 74 #define ACE_F_RESOLVED 0x0008 75 /* Using bit mask extraction from target address */ 76 #define ACE_F_MAPPING 0x0010 77 #define ACE_F_MYADDR 0x0020 /* IP claims to own this address */ 78 #define ACE_F_UNVERIFIED 0x0040 /* DAD not yet complete */ 79 #define ACE_F_AUTHORITY 0x0080 /* check for duplicate MACs */ 80 #define ACE_F_DEFEND 0x0100 /* single transmit (area_flags only) */ 81 #define ACE_F_OLD 0x0200 /* should revalidate when IP asks */ 82 #define ACE_F_FAST 0x0400 /* fast probe enabled */ 83 #define ACE_F_DELAYED 0x0800 /* rescheduled on arp_defend_rate */ 84 #define ACE_F_DAD_ABORTED 0x1000 /* DAD was aborted on link down */ 85 86 /* ARP Command Structures */ 87 88 /* arc_t - Common command overlay */ 89 typedef struct ar_cmd_s { 90 uint32_t arc_cmd; 91 uint32_t arc_name_offset; 92 uint32_t arc_name_length; 93 } arc_t; 94 95 /* 96 * NOTE: when using area_t for an AR_ENTRY_SQUERY, the area_hw_addr_offset 97 * field isn't what you might think. See comments in ip_multi.c where 98 * the routine ill_create_squery() is called, and also in the routine 99 * itself, to see how this field is used *only* when the area_t holds 100 * an AR_ENTRY_SQUERY. 101 */ 102 typedef struct ar_entry_add_s { 103 uint32_t area_cmd; 104 uint32_t area_name_offset; 105 uint32_t area_name_length; 106 uint32_t area_proto; 107 uint32_t area_proto_addr_offset; 108 uint32_t area_proto_addr_length; 109 uint32_t area_proto_mask_offset; 110 uint32_t area_flags; /* Same values as ace_flags */ 111 uint32_t area_hw_addr_offset; 112 uint32_t area_hw_addr_length; 113 } area_t; 114 115 typedef struct ar_entry_delete_s { 116 uint32_t ared_cmd; 117 uint32_t ared_name_offset; 118 uint32_t ared_name_length; 119 uint32_t ared_proto; 120 uint32_t ared_proto_addr_offset; 121 uint32_t ared_proto_addr_length; 122 } ared_t; 123 124 typedef struct ar_entry_query_s { 125 uint32_t areq_cmd; 126 uint32_t areq_name_offset; 127 uint32_t areq_name_length; 128 uint32_t areq_proto; 129 uint32_t areq_target_addr_offset; 130 uint32_t areq_target_addr_length; 131 uint32_t areq_flags; 132 uint32_t areq_sender_addr_offset; 133 uint32_t areq_sender_addr_length; 134 uint32_t areq_xmit_count; /* 0 ==> cache lookup only */ 135 uint32_t areq_xmit_interval; /* # of milliseconds; 0: default */ 136 /* # ofquests to buffer; 0: default */ 137 uint32_t areq_max_buffered; 138 uchar_t areq_sap[8]; /* to insert in returned template */ 139 } areq_t; 140 141 /* 142 * Structure used with AR_ENTRY_LLAQUERY to map from the link_addr 143 * (in Neighbor Discovery option format excluding the option type and 144 * length) to a hardware address. 145 * The response has the same format as for an AR_ENTRY_SQUERY - an M_CTL with 146 * arel_hw_addr updated. 147 * An IPv6 address will be passed in AR_ENTRY_LLAQUERY so that atmip 148 * can send it in AR_CLIENT_NOTIFY messages. 149 */ 150 typedef struct ar_entry_llaquery_s { 151 uint32_t arel_cmd; 152 uint32_t arel_name_offset; 153 uint32_t arel_name_length; 154 uint32_t arel_link_addr_offset; 155 uint32_t arel_link_addr_length; 156 uint32_t arel_hw_addr_offset; 157 uint32_t arel_hw_addr_length; 158 uint32_t arel_ip_addr_offset; 159 uint32_t arel_ip_addr_length; 160 } arel_t; 161 162 typedef struct ar_mapping_add_s { 163 uint32_t arma_cmd; 164 uint32_t arma_name_offset; 165 uint32_t arma_name_length; 166 uint32_t arma_proto; 167 uint32_t arma_proto_addr_offset; 168 uint32_t arma_proto_addr_length; 169 uint32_t arma_proto_mask_offset; 170 uint32_t arma_proto_extract_mask_offset; 171 uint32_t arma_flags; 172 uint32_t arma_hw_addr_offset; 173 uint32_t arma_hw_addr_length; 174 /* Offset were we start placing */ 175 uint32_t arma_hw_mapping_start; 176 /* the mask&proto_addr */ 177 } arma_t; 178 179 /* Structure used to notify clients of interesting conditions. */ 180 typedef struct ar_client_notify_s { 181 uint32_t arcn_cmd; 182 uint32_t arcn_name_offset; 183 uint32_t arcn_name_length; 184 uint32_t arcn_code; /* Notification code. */ 185 } arcn_t; 186 187 /* Client Notification Codes */ 188 #define AR_CN_BOGON 1 189 #define AR_CN_ANNOUNCE 2 190 #define AR_CN_READY 3 /* DAD complete; address usable */ 191 #define AR_CN_FAILED 4 /* DAD failed; address unusable */ 192 193 /* ARP Header */ 194 typedef struct arh_s { 195 uchar_t arh_hardware[2]; 196 uchar_t arh_proto[2]; 197 uchar_t arh_hlen; 198 uchar_t arh_plen; 199 uchar_t arh_operation[2]; 200 /* The sender and target hw/proto pairs follow */ 201 } arh_t; 202 203 #ifdef __cplusplus 204 } 205 #endif 206 207 #endif /* _INET_ARP_H */ 208