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| -rw-r--r-- | dhcp6.h | 385 |
1 files changed, 385 insertions, 0 deletions
@@ -0,0 +1,385 @@ +/* $KAME: dhcp6.h,v 1.56 2005/03/20 06:46:09 jinmei Exp $ */ +/* + * 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. + */ + +#ifndef __DHCP6_H_DEFINED +#define __DHCP6_H_DEFINED + +#ifdef __sun__ +#define __P(x) x +typedef uint8_t u_int8_t; +#ifndef U_INT16_T_DEFINED +#define U_INT16_T_DEFINED +typedef uint16_t u_int16_t; +#endif +#ifndef U_INT32_T_DEFINED +#define U_INT32_T_DEFINED +typedef uint32_t u_int32_t; +#endif +typedef uint64_t u_int64_t; +#ifndef CMSG_SPACE +#define CMSG_SPACE(l) \ + ((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l))) +#endif +#ifndef CMSG_LEN +#define CMSG_LEN(l) \ + ((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l)) +#endif +#endif + +/* Error Values */ +#define DH6ERR_FAILURE 16 +#define DH6ERR_AUTHFAIL 17 +#define DH6ERR_POORLYFORMED 18 +#define DH6ERR_UNAVAIL 19 +#define DH6ERR_OPTUNAVAIL 20 + +/* Message type */ +#define DH6_SOLICIT 1 +#define DH6_ADVERTISE 2 +#define DH6_REQUEST 3 +#define DH6_CONFIRM 4 +#define DH6_RENEW 5 +#define DH6_REBIND 6 +#define DH6_REPLY 7 +#define DH6_RELEASE 8 +#define DH6_DECLINE 9 +#define DH6_RECONFIGURE 10 +#define DH6_INFORM_REQ 11 +#define DH6_RELAY_FORW 12 +#define DH6_RELAY_REPLY 13 + +/* Predefined addresses */ +#define DH6ADDR_ALLAGENT "ff02::1:2" +#define DH6ADDR_ALLSERVER "ff05::1:3" +#define DH6PORT_DOWNSTREAM "546" +#define DH6PORT_UPSTREAM "547" + +/* Protocol constants */ + +/* timer parameters (msec, unless explicitly commented) */ +#define SOL_MAX_DELAY 1000 +#define SOL_TIMEOUT 1000 +#define SOL_MAX_RT 120000 +#define INF_TIMEOUT 1000 +#define INF_MAX_RT 120000 +#define REQ_TIMEOUT 1000 +#define REQ_MAX_RT 30000 +#define REQ_MAX_RC 10 /* Max Request retry attempts */ +#define REN_TIMEOUT 10000 /* 10secs */ +#define REN_MAX_RT 600000 /* 600secs */ +#define REB_TIMEOUT 10000 /* 10secs */ +#define REB_MAX_RT 600000 /* 600secs */ +#define REL_TIMEOUT 1000 /* 1 sec */ +#define REL_MAX_RC 5 + +#define DHCP6_DURATION_INFINITE 0xffffffff +#define DHCP6_DURATION_MIN 30 + +#define DHCP6_RELAY_MULTICAST_HOPS 32 +#define DHCP6_RELAY_HOP_COUNT_LIMIT 32 + +#define DHCP6_IRT_DEFAULT 86400 /* 1 day */ +#define DHCP6_IRT_MINIMUM 600 + +/* DUID: DHCP unique Identifier */ +struct duid { + size_t duid_len; /* length */ + char *duid_id; /* variable length ID value (must be opaque) */ +}; + +struct dhcp6_vbuf { /* generic variable length buffer */ + int dv_len; + caddr_t dv_buf; +}; + +/* option information */ +struct dhcp6_ia { /* identity association */ + u_int32_t iaid; + u_int32_t t1; + u_int32_t t2; +}; + +struct dhcp6_prefix { /* IA_PA */ + u_int32_t pltime; + u_int32_t vltime; + struct in6_addr addr; + int plen; +}; + +struct dhcp6_statefuladdr { /* IA_NA */ + u_int32_t pltime; + u_int32_t vltime; + struct in6_addr addr; +}; + +/* Internal data structure */ +typedef enum { DHCP6_LISTVAL_NUM = 1, + DHCP6_LISTVAL_STCODE, DHCP6_LISTVAL_ADDR6, + DHCP6_LISTVAL_IAPD, DHCP6_LISTVAL_PREFIX6, + DHCP6_LISTVAL_IANA, DHCP6_LISTVAL_STATEFULADDR6, + DHCP6_LISTVAL_VBUF +} dhcp6_listval_type_t; +TAILQ_HEAD(dhcp6_list, dhcp6_listval); +struct dhcp6_listval { + TAILQ_ENTRY(dhcp6_listval) link; + + dhcp6_listval_type_t type; + + union { + int uv_num; + u_int16_t uv_num16; + struct in6_addr uv_addr6; + struct dhcp6_prefix uv_prefix6; + struct dhcp6_statefuladdr uv_statefuladdr6; + struct dhcp6_ia uv_ia; + struct dhcp6_vbuf uv_vbuf; + } uv; + + struct dhcp6_list sublist; +}; +#define val_num uv.uv_num +#define val_num16 uv.uv_num16 +#define val_addr6 uv.uv_addr6 +#define val_ia uv.uv_ia +#define val_prefix6 uv.uv_prefix6 +#define val_statefuladdr6 uv.uv_statefuladdr6 +#define val_vbuf uv.uv_vbuf + +struct dhcp6_optinfo { + struct duid clientID; /* DUID */ + struct duid serverID; /* DUID */ + + int rapidcommit; /* bool */ + int pref; /* server preference */ + int32_t elapsed_time; /* elapsed time (from client to server only) */ + int64_t refreshtime; /* info refresh time for stateless options */ + + struct dhcp6_list iapd_list; /* list of IA_PD */ + struct dhcp6_list iana_list; /* list of IA_NA */ + struct dhcp6_list reqopt_list; /* options in option request */ + struct dhcp6_list stcode_list; /* status code */ + struct dhcp6_list sip_list; /* SIP server list */ + struct dhcp6_list sipname_list; /* SIP domain list */ + struct dhcp6_list dns_list; /* DNS server list */ + struct dhcp6_list dnsname_list; /* Domain Search list */ + struct dhcp6_list ntp_list; /* NTP server list */ + struct dhcp6_list prefix_list; /* prefix list */ + struct dhcp6_list nis_list; /* NIS server list */ + struct dhcp6_list nisname_list; /* NIS domain list */ + struct dhcp6_list nisp_list; /* NIS+ server list */ + struct dhcp6_list nispname_list; /* NIS+ domain list */ + struct dhcp6_list bcmcs_list; /* BCMC server list */ + struct dhcp6_list bcmcsname_list; /* BCMC domain list */ + + struct dhcp6_vbuf relay_msg; /* relay message */ +#define relaymsg_len relay_msg.dv_len +#define relaymsg_msg relay_msg.dv_buf + + struct dhcp6_vbuf ifidopt; /* Interface-id */ +#define ifidopt_len ifidopt.dv_len +#define ifidopt_id ifidopt.dv_buf + + u_int authflags; +#define DHCP6OPT_AUTHFLAG_NOINFO 0x1 + int authproto; + int authalgorithm; + int authrdm; + /* the followings are effective only when NOINFO is unset */ + u_int64_t authrd; + union { + struct { + u_int32_t keyid; + struct dhcp6_vbuf realm; + int offset; /* offset to the HMAC field */ + } aiu_delayed; + struct { + int type; + int offset; /* offset to the HMAC field */ + char val[16]; /* key value */ + } aiu_reconfig; + } authinfo; +#define delayedauth_keyid authinfo.aiu_delayed.keyid +#define delayedauth_realmlen authinfo.aiu_delayed.realm.dv_len +#define delayedauth_realmval authinfo.aiu_delayed.realm.dv_buf +#define delayedauth_offset authinfo.aiu_delayed.offset +#define reconfigauth_type authinfo.aiu_reconfig.type +#define reconfigauth_offset authinfo.aiu_reconfig.offset +#define reconfigauth_val authinfo.aiu_reconfig.val +}; + +/* DHCP6 base packet format */ +struct dhcp6 { + union { + u_int8_t m; + u_int32_t x; + } dh6_msgtypexid; + /* options follow */ +} __attribute__ ((__packed__)); +#define dh6_msgtype dh6_msgtypexid.m +#define dh6_xid dh6_msgtypexid.x +#define DH6_XIDMASK 0x00ffffff + +/* DHCPv6 relay messages */ +struct dhcp6_relay { + u_int8_t dh6relay_msgtype; + u_int8_t dh6relay_hcnt; + struct in6_addr dh6relay_linkaddr; /* XXX: badly aligned */ + struct in6_addr dh6relay_peeraddr; /* ditto */ + /* options follow */ +} __attribute__ ((__packed__)); + +/* options */ +#define DH6OPT_CLIENTID 1 +#define DH6OPT_SERVERID 2 +#define DH6OPT_IA_NA 3 +#define DH6OPT_IA_TA 4 +#define DH6OPT_IAADDR 5 +#define DH6OPT_ORO 6 +#define DH6OPT_PREFERENCE 7 +# define DH6OPT_PREF_UNDEF -1 +# define DH6OPT_PREF_MAX 255 +#define DH6OPT_ELAPSED_TIME 8 +# define DH6OPT_ELAPSED_TIME_UNDEF -1 +#define DH6OPT_RELAY_MSG 9 +/* #define DH6OPT_SERVER_MSG 10: deprecated */ +#define DH6OPT_AUTH 11 +# define DH6OPT_AUTH_PROTO_DELAYED 2 +# define DH6OPT_AUTH_RRECONFIGURE 3 +# define DH6OPT_AUTH_ALG_HMACMD5 1 +#define DH6OPT_UNICAST 12 +#define DH6OPT_STATUS_CODE 13 +# define DH6OPT_STCODE_SUCCESS 0 +# define DH6OPT_STCODE_UNSPECFAIL 1 +# define DH6OPT_STCODE_NOADDRSAVAIL 2 +# define DH6OPT_STCODE_NOBINDING 3 +# define DH6OPT_STCODE_NOTONLINK 4 +# define DH6OPT_STCODE_USEMULTICAST 5 +# define DH6OPT_STCODE_NOPREFIXAVAIL 6 + +#define DH6OPT_RAPID_COMMIT 14 +#define DH6OPT_USER_CLASS 15 +#define DH6OPT_VENDOR_CLASS 16 +#define DH6OPT_VENDOR_OPTS 17 +#define DH6OPT_INTERFACE_ID 18 +#define DH6OPT_RECONF_MSG 19 + +#define DH6OPT_SIP_SERVER_D 21 +#define DH6OPT_SIP_SERVER_A 22 +#define DH6OPT_DNS 23 +#define DH6OPT_DNSNAME 24 +#define DH6OPT_IA_PD 25 +#define DH6OPT_IA_PD_PREFIX 26 +#define DH6OPT_NIS_SERVERS 27 +#define DH6OPT_NISP_SERVERS 28 +#define DH6OPT_NIS_DOMAIN_NAME 29 +#define DH6OPT_NISP_DOMAIN_NAME 30 +#define DH6OPT_NTP 31 +#define DH6OPT_REFRESHTIME 32 + #define DH6OPT_REFRESHTIME_UNDEF -1 +#define DH6OPT_BCMCS_SERVER_D 33 +#define DH6OPT_BCMCS_SERVER_A 34 +#define DH6OPT_GEOCONF_CIVIC 36 +#define DH6OPT_REMOTE_ID 37 +#define DH6OPT_SUBSCRIBER_ID 38 +#define DH6OPT_CLIENT_FQDN 39 + +/* The followings are KAME specific. */ + +struct dhcp6opt { + u_int16_t dh6opt_type; + u_int16_t dh6opt_len; + /* type-dependent data follows */ +} __attribute__ ((__packed__)); + +/* DUID type 1 */ +struct dhcp6opt_duid_type1 { + u_int16_t dh6_duid1_type; + u_int16_t dh6_duid1_hwtype; + u_int32_t dh6_duid1_time; + /* link-layer address follows */ +} __attribute__ ((__packed__)); + +/* Status Code */ +struct dhcp6opt_stcode { + u_int16_t dh6_stcode_type; + u_int16_t dh6_stcode_len; + u_int16_t dh6_stcode_code; +} __attribute__ ((__packed__)); + +/* + * General format of Identity Association. + * This format applies to Prefix Delegation (IA_PD) and Non-temporary Addresses + * (IA_NA) + */ +struct dhcp6opt_ia { + u_int16_t dh6_ia_type; + u_int16_t dh6_ia_len; + u_int32_t dh6_ia_iaid; + u_int32_t dh6_ia_t1; + u_int32_t dh6_ia_t2; + /* sub options follow */ +} __attribute__ ((__packed__)); + +/* IA Addr */ +struct dhcp6opt_ia_addr { + u_int16_t dh6_ia_addr_type; + u_int16_t dh6_ia_addr_len; + struct in6_addr dh6_ia_addr_addr; + u_int32_t dh6_ia_addr_preferred_time; + u_int32_t dh6_ia_addr_valid_time; +} __attribute__ ((__packed__)); + +/* IA_PD Prefix */ +struct dhcp6opt_ia_pd_prefix { + u_int16_t dh6_iapd_prefix_type; + u_int16_t dh6_iapd_prefix_len; + u_int32_t dh6_iapd_prefix_preferred_time; + u_int32_t dh6_iapd_prefix_valid_time; + u_int8_t dh6_iapd_prefix_prefix_len; + struct in6_addr dh6_iapd_prefix_prefix_addr; +} __attribute__ ((__packed__)); + +/* Authentication */ +struct dhcp6opt_auth { + u_int16_t dh6_auth_type; + u_int16_t dh6_auth_len; + u_int8_t dh6_auth_proto; + u_int8_t dh6_auth_alg; + u_int8_t dh6_auth_rdm; + u_int8_t dh6_auth_rdinfo[8]; + /* authentication information follows */ +} __attribute__ ((__packed__)); + +enum { DHCP6_AUTHPROTO_UNDEF = -1, DHCP6_AUTHPROTO_DELAYED = 2, + DHCP6_AUTHPROTO_RECONFIG = 3 }; +enum { DHCP6_AUTHALG_UNDEF = -1, DHCP6_AUTHALG_HMACMD5 = 1 }; +enum { DHCP6_AUTHRDM_UNDEF = -1, DHCP6_AUTHRDM_MONOCOUNTER = 0 }; + +#endif /*__DHCP6_H_DEFINED*/ |