1 /* $NetBSD: dhcp6.h,v 1.1.1.2 2014/07/12 11:57:53 spz Exp $ */ 2 /* dhcp6.h 3 4 DHCPv6 Protocol structures... */ 5 6 /* 7 * Copyright (c) 2013 by Internet Systems Consortium, Inc. ("ISC") 8 * Copyright (c) 2006-2009 by Internet Systems Consortium, Inc. ("ISC") 9 * 10 * Permission to use, copy, modify, and distribute this software for any 11 * purpose with or without fee is hereby granted, provided that the above 12 * copyright notice and this permission notice appear in all copies. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 15 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 16 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 17 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 19 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 20 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 21 * 22 * Internet Systems Consortium, Inc. 23 * 950 Charter Street 24 * Redwood City, CA 94063 25 * <info@isc.org> 26 * https://www.isc.org/ 27 */ 28 29 30 /* DHCPv6 Option codes: */ 31 32 #define D6O_CLIENTID 1 /* RFC3315 */ 33 #define D6O_SERVERID 2 34 #define D6O_IA_NA 3 35 #define D6O_IA_TA 4 36 #define D6O_IAADDR 5 37 #define D6O_ORO 6 38 #define D6O_PREFERENCE 7 39 #define D6O_ELAPSED_TIME 8 40 #define D6O_RELAY_MSG 9 41 /* Option code 10 unassigned. */ 42 #define D6O_AUTH 11 43 #define D6O_UNICAST 12 44 #define D6O_STATUS_CODE 13 45 #define D6O_RAPID_COMMIT 14 46 #define D6O_USER_CLASS 15 47 #define D6O_VENDOR_CLASS 16 48 #define D6O_VENDOR_OPTS 17 49 #define D6O_INTERFACE_ID 18 50 #define D6O_RECONF_MSG 19 51 #define D6O_RECONF_ACCEPT 20 52 #define D6O_SIP_SERVERS_DNS 21 /* RFC3319 */ 53 #define D6O_SIP_SERVERS_ADDR 22 /* RFC3319 */ 54 #define D6O_NAME_SERVERS 23 /* RFC3646 */ 55 #define D6O_DOMAIN_SEARCH 24 /* RFC3646 */ 56 #define D6O_IA_PD 25 /* RFC3633 */ 57 #define D6O_IAPREFIX 26 /* RFC3633 */ 58 #define D6O_NIS_SERVERS 27 /* RFC3898 */ 59 #define D6O_NISP_SERVERS 28 /* RFC3898 */ 60 #define D6O_NIS_DOMAIN_NAME 29 /* RFC3898 */ 61 #define D6O_NISP_DOMAIN_NAME 30 /* RFC3898 */ 62 #define D6O_SNTP_SERVERS 31 /* RFC4075 */ 63 #define D6O_INFORMATION_REFRESH_TIME 32 /* RFC4242 */ 64 #define D6O_BCMCS_SERVER_D 33 /* RFC4280 */ 65 #define D6O_BCMCS_SERVER_A 34 /* RFC4280 */ 66 /* 35 is unassigned */ 67 #define D6O_GEOCONF_CIVIC 36 /* RFC4776 */ 68 #define D6O_REMOTE_ID 37 /* RFC4649 */ 69 #define D6O_SUBSCRIBER_ID 38 /* RFC4580 */ 70 #define D6O_CLIENT_FQDN 39 /* RFC4704 */ 71 #define D6O_PANA_AGENT 40 /* paa-option */ 72 #define D6O_NEW_POSIX_TIMEZONE 41 /* RFC4833 */ 73 #define D6O_NEW_TZDB_TIMEZONE 42 /* RFC4833 */ 74 #define D6O_ERO 43 /* RFC4994 */ 75 #define D6O_LQ_QUERY 44 /* RFC5007 */ 76 #define D6O_CLIENT_DATA 45 /* RFC5007 */ 77 #define D6O_CLT_TIME 46 /* RFC5007 */ 78 #define D6O_LQ_RELAY_DATA 47 /* RFC5007 */ 79 #define D6O_LQ_CLIENT_LINK 48 /* RFC5007 */ 80 81 /* 82 * Status Codes, from RFC 3315 section 24.4, and RFC 3633, 5007. 83 */ 84 #define STATUS_Success 0 85 #define STATUS_UnspecFail 1 86 #define STATUS_NoAddrsAvail 2 87 #define STATUS_NoBinding 3 88 #define STATUS_NotOnLink 4 89 #define STATUS_UseMulticast 5 90 #define STATUS_NoPrefixAvail 6 91 #define STATUS_UnknownQueryType 7 92 #define STATUS_MalformedQuery 8 93 #define STATUS_NotConfigured 9 94 #define STATUS_NotAllowed 10 95 96 /* 97 * DHCPv6 message types, defined in section 5.3 of RFC 3315 98 */ 99 #define DHCPV6_SOLICIT 1 100 #define DHCPV6_ADVERTISE 2 101 #define DHCPV6_REQUEST 3 102 #define DHCPV6_CONFIRM 4 103 #define DHCPV6_RENEW 5 104 #define DHCPV6_REBIND 6 105 #define DHCPV6_REPLY 7 106 #define DHCPV6_RELEASE 8 107 #define DHCPV6_DECLINE 9 108 #define DHCPV6_RECONFIGURE 10 109 #define DHCPV6_INFORMATION_REQUEST 11 110 #define DHCPV6_RELAY_FORW 12 111 #define DHCPV6_RELAY_REPL 13 112 #define DHCPV6_LEASEQUERY 14 113 #define DHCPV6_LEASEQUERY_REPLY 15 114 115 extern const char *dhcpv6_type_names[]; 116 extern const int dhcpv6_type_name_max; 117 118 /* DUID type definitions (RFC3315 section 9). 119 */ 120 #define DUID_LLT 1 121 #define DUID_EN 2 122 #define DUID_LL 3 123 124 /* Offsets into IA_*'s where Option spaces commence. */ 125 #define IA_NA_OFFSET 12 /* IAID, T1, T2, all 4 octets each */ 126 #define IA_TA_OFFSET 4 /* IAID only, 4 octets */ 127 #define IA_PD_OFFSET 12 /* IAID, T1, T2, all 4 octets each */ 128 129 /* Offset into IAADDR's where Option spaces commence. */ 130 #define IAADDR_OFFSET 24 131 132 /* Offset into IAPREFIX's where Option spaces commence. */ 133 #define IAPREFIX_OFFSET 25 134 135 /* Offset into LQ_QUERY's where Option spaces commence. */ 136 #define LQ_QUERY_OFFSET 17 137 138 /* 139 * DHCPv6 well-known multicast addressess, from section 5.1 of RFC 3315 140 */ 141 #define All_DHCP_Relay_Agents_and_Servers "FF02::1:2" 142 #define All_DHCP_Servers "FF05::1:3" 143 144 /* 145 * DHCPv6 Retransmission Constants (RFC3315 section 5.5, RFC 5007) 146 */ 147 148 #define SOL_MAX_DELAY 1 149 #define SOL_TIMEOUT 1 150 #define SOL_MAX_RT 120 151 #define REQ_TIMEOUT 1 152 #define REQ_MAX_RT 30 153 #define REQ_MAX_RC 10 154 #define CNF_MAX_DELAY 1 155 #define CNF_TIMEOUT 1 156 #define CNF_MAX_RT 4 157 #define CNF_MAX_RD 10 158 #define REN_TIMEOUT 10 159 #define REN_MAX_RT 600 160 #define REB_TIMEOUT 10 161 #define REB_MAX_RT 600 162 #define INF_MAX_DELAY 1 163 #define INF_TIMEOUT 1 164 #define INF_MAX_RT 120 165 #define REL_TIMEOUT 1 166 #define REL_MAX_RC 5 167 #define DEC_TIMEOUT 1 168 #define DEC_MAX_RC 5 169 #define REC_TIMEOUT 2 170 #define REC_MAX_RC 8 171 #define HOP_COUNT_LIMIT 32 172 #define LQ6_TIMEOUT 1 173 #define LQ6_MAX_RT 10 174 #define LQ6_MAX_RC 5 175 176 /* 177 * Normal packet format, defined in section 6 of RFC 3315 178 */ 179 struct dhcpv6_packet { 180 unsigned char msg_type; 181 unsigned char transaction_id[3]; 182 unsigned char options[FLEXIBLE_ARRAY_MEMBER]; 183 }; 184 185 /* Offset into DHCPV6 Reply packets where Options spaces commence. */ 186 #define REPLY_OPTIONS_INDEX 4 187 188 /* 189 * Relay packet format, defined in section 7 of RFC 3315 190 */ 191 struct dhcpv6_relay_packet { 192 unsigned char msg_type; 193 unsigned char hop_count; 194 unsigned char link_address[16]; 195 unsigned char peer_address[16]; 196 unsigned char options[FLEXIBLE_ARRAY_MEMBER]; 197 }; 198 #define MAX_V6RELAY_HOPS 32 199 200 /* Leasequery query-types (RFC 5007) */ 201 202 #define LQ6QT_BY_ADDRESS 1 203 #define LQ6QT_BY_CLIENTID 2 204 205 /* 206 * DUID time starts 2000-01-01. 207 * This constant is the number of seconds since 1970-01-01, 208 * when the Unix epoch began. 209 */ 210 #define DUID_TIME_EPOCH 946684800 211 212 /* Information-Request Time option (RFC 4242) */ 213 214 #define IRT_DEFAULT 86400 215 #define IRT_MINIMUM 600 216 217