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