imported KAME-DHCPv6 snapshot at 20051201KAME_20051201

1 files changed, 388 insertions, 0 deletions

diff --git a/dhcp6.h b/dhcp6.h
new file mode 100644
index 0000000..54b34c4
--- /dev/null
+++ b/dhcp6.h
@@ -0,0 +1,388 @@
+/*	$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
+
+/* 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_DURATITION_INFINITE 0xffffffff
+#define DHCP6_DURATITION_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 server 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_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
+
+/*
+ * The following values have been assigned by IANA very recently.  In order to
+ * ensure interoperability with prior experimental implementation, we still
+ * provide a way to configure these values.  It is highly recommended to use
+ * the standard values whenever possible, of course.
+ */
+#ifndef DH6OPT_SIP_SERVER_D
+#define DH6OPT_SIP_SERVER_D 21
+#endif
+#ifndef DH6OPT_SIP_SERVER_A
+#define DH6OPT_SIP_SERVER_A 22
+#endif
+#ifndef DH6OPT_DNS
+#define DH6OPT_DNS 23
+#endif
+#ifndef DH6OPT_DNSNAME
+#define DH6OPT_DNSNAME 24
+#endif
+#ifndef DH6OPT_IA_PD
+#define DH6OPT_IA_PD 25
+#endif
+#ifndef DH6OPT_IA_PD_PREFIX
+#define DH6OPT_IA_PD_PREFIX 26
+#endif
+
+/*
+ * The old prefix delegation option used in the service specification document
+ * (200206xx version) by NTT Communications.
+ */
+#define DH6OPT_PREFIX_DELEGATION CONF_DH6OPT_PREFIX_DELEGATION
+#define DH6OPT_PREFIX_INFORMATION CONF_DH6OPT_PREFIX_INFORMATION
+#define DH6OPT_PREFIX_REQUEST CONF_DH6OPT_PREFIX_REQUEST
+
+/* The followings are KAME specific. */
+#if CONF_DH6OPT_NTP > 0
+#define USE_DH6OPT_NTP
+#endif
+#define DH6OPT_NTP CONF_DH6OPT_NTP
+#if CONF_DH6OPT_REFRESHTIME > 0
+#define USE_DH6OPT_REFRESHTIME
+#endif
+#define DH6OPT_REFRESHTIME CONF_DH6OPT_REFRESHTIME
+#  define DH6OPT_REFRESHTIME_UNDEF -1
+
+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__));
+
+/* Prefix Information */
+struct dhcp6opt_prefix_info {
+	u_int16_t dh6_pi_type;
+	u_int16_t dh6_pi_len;
+	u_int32_t dh6_pi_duration;
+	u_int8_t dh6_pi_plen;
+	struct in6_addr dh6_pi_paddr;
+} __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*/