/* @(#) $Header: /tcpdump/master/tcpdump/dhcp6.h,v 1.4 2000/12/17 23:07:48 guy Exp $ (LBL) */ /* * Copyright (C) 1998 and 1999 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * draft-ietf-dhc-dhcpv6-15 */ #ifndef __DHCP6_H_DEFINED #define __DHCP6_H_DEFINED /* Error Values */ #define DH6ERR_FAILURE 16 #define DH6ERR_AUTHFAIL 17 #define DH6ERR_POORLYFORMED 18 #define DH6ERR_UNAVAIL 19 #define DH6ERR_NOBINDING 20 #define DH6ERR_INVALIDSOURCE 21 #define DH6ERR_NOSERVER 23 #define DH6ERR_ICMPERROR 64 /* Message type */ #define DH6_SOLICIT 1 #define DH6_ADVERT 2 #define DH6_REQUEST 3 #define DH6_REPLY 4 #define DH6_RELEASE 5 #define DH6_RECONFIG 6 /* Predefined addresses */ #define DH6ADDR_ALLAGENT "ff02::1:2" #define DH6ADDR_ALLSERVER "ff05::1:3" #define DH6ADDR_ALLRELAY "ff05::1:4" #define DH6PORT_DOWNSTREAM "546" #define DH6PORT_UPSTREAM "547" /* Protocol constants */ #define ADV_CLIENT_WAIT 2 /* sec */ #define DEFAULT_SOLICIT_HOPCOUNT 4 #define SERVER_MIN_ADV_DELAY 100 /* msec */ #define SERVER_MAX_ADV_DELAY 1000 /* msec */ #define REPLY_MSG_TIMEOUT 2 /* sec */ #define REQUEST_MSG_MIN_RETRANS 10 /* retransmissions */ #define RECONF_MSG_MIN_RETRANS 10 /* retransmissions */ #define RECONF_MSG_RETRANS_INTERVAL 12 /* sec */ #define RECONF_MMSG_MIN_RESP 2 /* sec */ #define RECONF_MMSG_MAX_RESP 10 /* sec */ #define RECONF_MULTICAST_REQUEST_WAIT 120 /* sec */ #define MIN_SOLICIT_DELAY 1 /* sec */ #define MAX_SOLICIT_DELAY 5 /* sec */ #define XID_TIMEOUT 600 /* sec */ /* DHCP6 base packet format */ struct dhcp6_solicit { u_int8_t dh6sol_msgtype; /* DH6_SOLICIT */ u_int8_t dh6sol_flags; #define DH6SOL_CLOSE 0x80 #define DH6SOL_PREFIX 0x40 /* XXX: solicit-ID is a 9-bit field...ugly! */ #define DH6SOL_SOLICIT_ID_MASK 0x01ff #define DH6SOL_SOLICIT_ID_SHIFT 0 #define DH6SOL_SOLICIT_ID(x) \ (((x) & DH6SOL_SOLICIT_ID_MASK) >> DH6SOL_SOLICIT_ID_SHIFT) #define DH6SOL_SOLICIT_PLEN_MASK 0xfe00 #define DH6SOL_SOLICIT_PLEN_SHIFT 9 #define DH6SOL_SOLICIT_PLEN(x) \ (((x) & DH6SOL_SOLICIT_PLEN_MASK) >> DH6SOL_SOLICIT_PLEN_SHIFT) u_int16_t dh6sol_plen_id; /* prefix-len and solict-ID */ struct in6_addr dh6sol_cliaddr; /* client's lladdr */ struct in6_addr dh6sol_relayaddr; /* relay agent's lladdr */ }; struct dhcp6_advert { u_int8_t dh6adv_msgtype; /* DH6_ADVERT */ u_int8_t dh6adv_rsv_id; /* reserved and uppermost bit of ID */ u_int8_t dh6adv_solcit_id; /* lower 8 bits of solicit-ID */ u_int8_t dh6adv_pref; struct in6_addr dh6adv_cliaddr; /* client's link-local addr */ struct in6_addr dh6adv_relayaddr; /* relay agent's (non-ll) addr */ struct in6_addr dh6adv_serveraddr; /* server's addr */ /* extensions */ }; struct dhcp6_request { u_int8_t dh6req_msgtype; /* DH6_REQUEST */ u_int8_t dh6req_flags; #define DH6REQ_CLOSE 0x80 #define DH6REQ_REBOOT 0x40 u_int16_t dh6req_xid; /* transaction-ID */ struct in6_addr dh6req_cliaddr; /* client's lladdr */ struct in6_addr dh6req_relayaddr; /* relay agent's (non-ll) addr */ struct in6_addr dh6req_serveraddr; /* server's addr */ /* extensions */ }; struct dhcp6_reply { u_int8_t dh6rep_msgtype; /* DH6_REPLY */ u_int8_t dh6rep_flagandstat; #define DH6REP_RELAYPRESENT 0x80 #define DH6REP_STATMASK 0x7f u_int16_t dh6rep_xid; /* transaction-ID */ struct in6_addr dh6rep_cliaddr; /* client's lladdr */ /* struct in6_addr dh6rep_relayaddr; optional: relay address */ /* extensions */ }; /* XXX: followings are based on older drafts */ struct dhcp6_release { u_int8_t dh6rel_msgtype; /* DH6_RELEASE */ u_int8_t dh6rel_flags; #define DH6REL_DIRECT 0x80 u_int16_t dh6rel_xid; /* transaction-ID */ struct in6_addr dh6rel_cliaddr; /* client's lladdr */ struct in6_addr dh6rel_relayaddr; /* relay agent's (non-ll) addr */ struct in6_addr dh6rel_reladdr; /* server's addr to be released */ /* extensions */ }; struct dhcp6_reconfig { u_int8_t dh6cfg_msgtype; /* DH6_RECONFIG */ u_int8_t dh6cfg_flags; #define DH6REP_NOREPLY 0x80 u_int16_t dh6cfg_xid; /* transaction-ID */ struct in6_addr dh6cfg_servaddr; /* server's addr */ /* extensions */ }; union dhcp6 { u_int8_t dh6_msgtype; struct dhcp6_solicit dh6_sol; struct dhcp6_advert dh6_adv; struct dhcp6_request dh6_req; struct dhcp6_reply dh6_rep; struct dhcp6_release dh6_rel; struct dhcp6_reconfig dh6_cfg; }; /* DHCP6 extension */ struct dhcp6e_ipaddr { u_int16_t dh6eip_type; u_int16_t dh6eip_len; u_int8_t dh6eip_status; #define DH6EX_IP_SUCCESS 0 /* request granted, no errors */ #define DH6EX_IP_SECFAIL 18 /* Security parameters failed */ #define DH6EX_IP_AAAAFAIL 20 /* AAAA Record Parameter Problem */ #define DH6EX_IP_PTRFAIL 21 /* PTR Record Parameter Problem */ #define DH6EX_IP_PARAMFAIL 22 /* Unable to honor required params */ #define DH6EX_IP_DNSNAMEFAIL 23 /* DNS name string error */ #define DH6EX_IP_NODYNDNS 24 /* dynDNS Not Implemented */ #define DH6EX_IP_NOAUTHDNS 25 /* Authoritative DNS Server not found */ #define DH6EX_IP_DNSFORMFAIL 33 /* DNS format error */ #define DH6EX_IP_SERVFAIL 34 /* dynDNS unavailable at this time */ #define DH6EX_IP_NXDOMAIN 35 /* name does not exist */ #define DH6EX_IP_NOTIMP 36 /* DNS does not support the Opcode */ #define DH6EX_IP_REFUSED 37 /* DNS refuses specified operation */ #define DH6EX_IP_YXDOMAIN 38 /* name does not exist */ #define DH6EX_IP_YXRRSET 39 /* RRset does not exist */ #define DH6EX_IP_NXRRSET 40 /* RRset does not exist */ #define DH6EX_IP_NOTAUTH 41 /* non authoritative name server */ #define DH6EX_IP_NOTZONE 42 /* prerequisite out of zone */ u_int8_t dh6eip_flags; #define DH6EX_IP_CLIANTADDR 0x80 /* C: cliant's addr */ #define DH6EX_IP_LIFETIME 0x40 /* L: preferred/valid lifetime */ #define DH6EX_IP_FORCEOPTS 0x20 /* Q: options are mandatory */ #define DH6EX_IP_AAAA 0x10 /* A: DNS dynamic update for AAAA */ #define DH6EX_IP_PTR 0x08 /* P: DNS dynamic update for PTR*/ u_int8_t dh6eip_pad; u_int8_t dh6eip_prefixlen; /* struct in6_addr: client's address (if C bit = 1) */ /* u_int: preferred lifetime (if L bit = 1) */ /* u_int: valid lifetime (if L bit = 1) */ /* string: DNS name */ }; #endif /*__DHCP6_H_DEFINED*/