/* packet-ipv6.h
- * Definitions for IPv6 packet disassembly
+ * Definitions for IPv6 packet disassembly
*
- * $Id: packet-ipv6.h,v 1.6 1999/10/14 05:41:30 itojun Exp $
+ * $Id: packet-ipv6.h,v 1.29 2002/10/22 22:04:21 jmayer Exp $
*
* Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@zing.org>
+ * By Gerald Combs <gerald@ethereal.com>
+ *
* Copyright 1998 Gerald Combs
*
- *
+ * MobileIPv6 support added by Tomislav Borosa <tomislav.borosa@siemens.hr>
+ *
+ * HMIPv6 support added by Martti Kuparinen <martti.kuparinen@iki.fi>
+ *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#ifndef __PACKET_IPV6_H_DEFINED__
#define __PACKET_IPV6_H_DEFINED__
-#ifndef __GLOBALS_H__
-#include "globals.h"
-#endif
-
-struct e_in6_addr {
- union {
- guint32 u6_addr32[4];
- guint16 u6_addr16[8];
- guint8 u6_addr8[16];
- } u6_addr; /* 128 bit IP6 address */
-};
-
-#ifdef s6_addr32
-#undef s6_addr32
-#endif
-
-#ifdef s6_addr16
-#undef s6_addr16
-#endif
-
-#ifdef s6_addr8
-#undef s6_addr8
-#endif
-
-#ifdef s6_addr
-#undef s6_addr
-#endif
-
-#define s6_addr32 u6_addr.u6_addr32
-#define s6_addr16 u6_addr.u6_addr16
-#define s6_addr8 u6_addr.u6_addr8
-#define s6_addr u6_addr.u6_addr8
+#include <epan/ipv6-utils.h>
#define INET6_ADDRSTRLEN 46
#define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
#define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim
-#define IPV6_VERSION 0x60
-#define IPV6_VERSION_MASK 0xf0
+/* Offsets of fields within an IPv6 header. */
+#define IP6H_CTL 0
+#define IP6H_CTL_FLOW 0
+#define IP6H_CTL_PLEN 4
+#define IP6H_CTL_NXT 6
+#define IP6H_CTL_HLIM 7
+#define IP6H_CTL_VFC 0
+#define IP6H_SRC 8
+#define IP6H_DST 24
-#if BYTE_ORDER == BIG_ENDIAN
#define IPV6_FLOWINFO_MASK 0x0fffffff /* flow info (28 bits) */
#define IPV6_FLOWLABEL_MASK 0x000fffff /* flow label (20 bits) */
-#endif /* BIG_ENDIAN */
-#if BYTE_ORDER == LITTLE_ENDIAN
-#define IPV6_FLOWINFO_MASK 0xffffff0f /* flow info (28 bits) */
-#define IPV6_FLOWLABEL_MASK 0xffff0f00 /* flow label (20 bits) */
-#endif /* LITTLE_ENDIAN */
/*
* Extension Headers
*/
struct ip6_ext {
- u_char ip6e_nxt;
- u_char ip6e_len;
+ guchar ip6e_nxt;
+ guchar ip6e_len;
};
/* Hop-by-Hop options header */
#define IP6OPT_JUMBO 0xC2 /* 11 0 00010 = 194 */
#define IP6OPT_JUMBO_LEN 6
#define IP6OPT_RTALERT 0x05 /* 00 0 00101 */
+
#define IP6OPT_RTALERT_LEN 4
#define IP6OPT_RTALERT_MLD 0 /* Datagram contains MLD message */
#define IP6OPT_RTALERT_RSVP 1 /* Datagram contains RSVP message */
+#define IP6OPT_RTALERT_ACTNET 2 /* contains an Active Networks msg */
#define IP6OPT_MINLEN 2
+#define IP6OPT_BINDING_UPDATE 0xC6 /* 11 0 00110 */
+#define IP6OPT_BINDING_ACK 0x07 /* 00 0 00111 */
+#define IP6OPT_BINDING_REQUEST 0x08 /* 00 0 01000 */
+#define IP6OPT_HOME_ADDRESS 0xC9 /* 11 0 01001 */
+#define IP6OPT_EID 0x8a /* 10 0 01010 */
+#define IP6OPT_MIPv6_UNIQUE_ID_SUB 0x02 /* 00 0 00010 */
+#define IP6OPT_MIPv6_ALTERNATIVE_COA_SUB 0x04 /* 00 0 00100 */
+
#define IP6OPT_TYPE(o) ((o) & 0xC0)
#define IP6OPT_TYPE_SKIP 0x00
#define IP6OPT_TYPE_DISCARD 0x40
#define IP6OPT_MUTABLE 0x20
+/* MIPv6 Lifetime */
+#define MIP_INFINITY 0xffffffff /* Infinity lifetime */
+
+/* Binding Update Flags */
+#define IP6_MIPv6_BU_A_FLAG 0x80 /* 1000 0000 - Acknowledge */
+#define IP6_MIPv6_BU_H_FLAG 0x40 /* 0100 0000 - Home Registration */
+#define IP6_MIPv6_BU_R_FLAG 0x20 /* 0010 0000 - Router */
+#define IP6_MIPv6_BU_D_FLAG 0x10 /* 0001 0000 - Duplicate Address Detection */
+#define IP6_MIPv6_BU_M_FLAG 0x8 /* 0000 1000 - MAP Registration */
+#define IP6_MIPv6_BU_B_FLAG 0x4 /* 0000 0100 - Request for bicasting */
+
+#define IP6_MIPv6_OPTION_TYPE_LENGTH 1
+#define IP6_MIPv6_OPTION_LENGTH_LENGTH 1
+#define IP6_MIPv6_FLAGS_LENGTH 1
+#define IP6_MIPv6_PREFIX_LENGTH_LENGTH 1
+#define IP6_MIPv6_SEQUENCE_NUMBER_LENGTH 2
+#define IP6_MIPv6_LIFE_TIME_LENGTH 4
+#define IP6_MIPv6_REFRESH_LENGTH 4
+#define IP6_MIPv6_STATUS_LENGTH 1
+#define IP6_MIPv6_HOME_ADDRESS_LENGTH 16
+#define IP6_MIPv6_SUB_TYPE_LENGTH 1
+#define IP6_MIPv6_SUB_LENGTH_LENGTH 1
+#define IP6_MIPv6_SUB_UNIQUE_ID_LENGTH 2
+#define IP6_MIPv6_SUB_ALTERNATIVE_COA_LENGTH 16
+
+/* Binding Ackonwledgement Status */
+#define BA_OK 0 /* Binding update accepted */
+#define BA_REAS_UNSPEC 128 /*Reason unspecified */
+#define BA_ADMIN_PROH 130 /* Administratively prohibited */
+#define BA_INSUF_RES 131 /* Insufficient resources */
+#define BA_NO_HR 132 /* Home registration not supported */
+#define BA_NO_SUBNET 133 /* Not home subnet */
+#define BA_ERR_ID_LEN 136 /* Incorrect interface identifier length */
+#define BA_NO_HA 137 /* Not home agent for this mobile node */
+#define BA_DUPL_ADDR 138 /* Duplicate Address Detection failed */
+
/* Routing header */
struct ip6_rthdr {
guint8 ip6r_nxt; /* next header */
guint32 ip6f_ident; /* identification */
};
-#if BYTE_ORDER == BIG_ENDIAN
#define IP6F_OFF_MASK 0xfff8 /* mask out offset from _offlg */
#define IP6F_RESERVED_MASK 0x0006 /* reserved bits in ip6f_offlg */
#define IP6F_MORE_FRAG 0x0001 /* more-fragments flag */
-#else /* BYTE_ORDER == LITTLE_ENDIAN */
-#define IP6F_OFF_MASK 0xf8ff /* mask out offset from _offlg */
-#define IP6F_RESERVED_MASK 0x0600 /* reserved bits in ip6f_offlg */
-#define IP6F_MORE_FRAG 0x0100 /* more-fragments flag */
-#endif /* BYTE_ORDER == LITTLE_ENDIAN */
/*
* Definition for ICMPv6.
#define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */
-/* xxx: actually not assigned yet */
-#define ICMP6_WRUREQUEST 140 /* who are you request */
-#define ICMP6_WRUREPLY 141 /* who are you reply */
-#define ICMP6_FQDN_QUERY 140 /* FQDN query */
-#define ICMP6_FQDN_REPLY 141 /* FQDN reply */
+#define ICMP6_WRUREQUEST 139 /* who are you request */
+#define ICMP6_WRUREPLY 140 /* who are you reply */
+#define ICMP6_FQDN_QUERY 139 /* FQDN query */
+#define ICMP6_FQDN_REPLY 140 /* FQDN reply */
+#define ICMP6_NI_QUERY 139 /* node information request */
+#define ICMP6_NI_REPLY 140 /* node information reply */
+
+/* The definitions below are experimental. TBA */
+#define MLD6_MTRACE_RESP 141 /* mtrace response(to sender) */
+#define MLD6_MTRACE 142 /* mtrace messages */
-#define ICMP6_MAXTYPE 141
+#define ICMP6_MAXTYPE 142
#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
-#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor */
+#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
+#define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
#define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
+#define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
+#define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
+#define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
+
+#define ICMP6_NI_SUCCESS 0 /* node information successful reply */
+#define ICMP6_NI_REFUSED 1 /* node information request is refused */
+#define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
+
#define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
#define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
#define ND_RA_FLAG_MANAGED 0x80
#define ND_RA_FLAG_OTHER 0x40
+#define ND_RA_FLAG_HOME_AGENT 0x20
+
+/*
+ * Router preference values based on draft-draves-ipngwg-router-selection-01.
+ * These are non-standard definitions.
+ */
+#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
+
+#define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */
+#define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */
+#define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */
+#define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */
+
#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
struct nd_neighbor_solicit { /* neighbor solicitation */
#define nd_na_code nd_na_hdr.icmp6_code
#define nd_na_cksum nd_na_hdr.icmp6_cksum
#define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
-#if BYTE_ORDER == BIG_ENDIAN
#define ND_NA_FLAG_ROUTER 0x80000000
#define ND_NA_FLAG_SOLICITED 0x40000000
#define ND_NA_FLAG_OVERRIDE 0x20000000
-#elif BYTE_ORDER == LITTLE_ENDIAN
-#define ND_NA_FLAG_ROUTER 0x80
-#define ND_NA_FLAG_SOLICITED 0x40
-#define ND_NA_FLAG_OVERRIDE 0x20
-#endif
struct nd_redirect { /* redirect */
struct icmp6_hdr nd_rd_hdr;
#define ND_OPT_PREFIX_INFORMATION 3
#define ND_OPT_REDIRECTED_HEADER 4
#define ND_OPT_MTU 5
+#define ND_OPT_ADVINTERVAL 7
+#define ND_OPT_HOMEAGENT_INFO 8
+#define ND_OPT_SOURCE_ADDRLIST 9
+#define ND_OPT_TARGET_ADDRLIST 10
+
+/* draft-ietf-ipngwg-router-preference, not officially assigned yet */
+#define ND_OPT_ROUTE_INFO 200
+/* draft-ietf-mobileip-hmipv6, not officially assigned yet */
+#define ND_OPT_MAP 201
struct nd_opt_prefix_info { /* prefix information */
guint8 nd_opt_pi_type;
#define ND_OPT_PI_FLAG_ONLINK 0x80
#define ND_OPT_PI_FLAG_AUTO 0x40
+#define ND_OPT_PI_FLAG_ROUTER 0x20
+#define ND_OPT_PI_FLAG_SITEPREF 0x10
struct nd_opt_rd_hdr { /* redirected header */
guint8 nd_opt_rh_type;
guint32 nd_opt_mtu_mtu;
};
-#if 0
-/* disregard until used. We have to decide how to handle guint64 */
+struct nd_opt_adv_int { /* Advertisement Interval option */
+ guint8 nd_opt_adv_int_type;
+ guint8 nd_opt_adv_int_len;
+ guint16 nd_opt_adv_int_reserved;
+ guint32 nd_opt_adv_int_advint;
+};
+
+struct nd_opt_ha_info { /* Home Agent Information option */
+ guint8 nd_opt_ha_info_type;
+ guint8 nd_opt_ha_info_len;
+ guint16 nd_opt_ha_info_reserved;
+ guint16 nd_opt_ha_info_ha_pref;
+ guint16 nd_opt_ha_info_ha_life;
+};
+
+struct nd_opt_route_info { /* route info */
+ guint8 nd_opt_rti_type;
+ guint8 nd_opt_rti_len;
+ guint8 nd_opt_rti_prefixlen;
+ guint8 nd_opt_rti_flags;
+ guint32 nd_opt_rti_lifetime;
+ /* prefix follows */
+};
+
+struct nd_opt_map_info { /* HMIPv6 MAP option */
+ guint8 nd_opt_map_type;
+ guint8 nd_opt_map_len;
+ guint8 nd_opt_map_dist_and_pref;
+ guint8 nd_opt_map_flags;
+ guint32 nd_opt_map_lifetime;
+ struct e_in6_addr nd_opt_map_address;
+};
+
+#define ND_OPT_MAP_FLAG_R 0x80
+#define ND_OPT_MAP_FLAG_M 0x40
+#define ND_OPT_MAP_FLAG_I 0x20
+#define ND_OPT_MAP_FLAG_T 0x10
+#define ND_OPT_MAP_FLAG_P 0x08
+#define ND_OPT_MAP_FLAG_V 0x04
+
/*
- * icmp6 namelookup
+ * icmp6 node information
*/
+struct icmp6_nodeinfo {
+ struct icmp6_hdr icmp6_ni_hdr;
+ guint8 icmp6_ni_nonce[8];
+ /* could be followed by reply data */
+};
-struct icmp6_namelookup {
- struct icmp6_hdr icmp6_nl_hdr;
- guint64 icmp6_nl_nonce;
- guint32 icmp6_nl_ttl;
-#if 0
- guint8 icmp6_nl_len;
- guint8 icmp6_nl_name[3];
-#endif
- /* could be followed by options */
+#define ni_type icmp6_ni_hdr.icmp6_type
+#define ni_code icmp6_ni_hdr.icmp6_code
+#define ni_cksum icmp6_ni_hdr.icmp6_cksum
+#define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
+#define ni_flags icmp6_ni_hdr.icmp6_data16[1]
+
+#define NI_QTYPE_NOOP 0 /* NOOP */
+#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
+#define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
+#define NI_QTYPE_DNSNAME 2 /* DNS Name */
+#define NI_QTYPE_NODEADDR 3 /* Node Addresses */
+#define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
+
+#define NI_SUPTYPE_FLAG_COMPRESS 0x1
+#define NI_FQDN_FLAG_VALIDTTL 0x1
+
+#define NI_NODEADDR_FLAG_TRUNCATE 0x1
+#define NI_NODEADDR_FLAG_ALL 0x2
+#define NI_NODEADDR_FLAG_COMPAT 0x4
+#define NI_NODEADDR_FLAG_LINKLOCAL 0x8
+#define NI_NODEADDR_FLAG_SITELOCAL 0x10
+#define NI_NODEADDR_FLAG_GLOBAL 0x20
+#define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
+
+struct ni_reply_fqdn {
+ guint32 ni_fqdn_ttl; /* TTL */
+ guint8 ni_fqdn_namelen; /* length in octets of the FQDN */
+ guint8 ni_fqdn_name[3]; /* XXX: alignment */
};
-#endif
/*
* Router Renumbering. as router-renum-05.txt
*/
-#if BYTE_ORDER == BIG_ENDIAN /* net byte order */
struct icmp6_router_renum { /* router renumbering header */
struct icmp6_hdr rr_hdr;
guint8 rr_segnum;
- guint8 rr_test : 1;
- guint8 rr_reqresult : 1;
- guint8 rr_forceapply : 1;
- guint8 rr_specsite : 1;
- guint8 rr_prevdone : 1;
- guint8 rr_flags_reserved : 3;
+ guint8 rr_flags;
guint16 rr_maxdelay;
guint32 rr_reserved;
};
-#elif BYTE_ORDER == LITTLE_ENDIAN
-struct icmp6_router_renum { /* router renumbering header */
- struct icmp6_hdr rr_hdr;
- guint8 rr_segnum;
- guint8 rr_flags_reserved : 3;
- guint8 rr_prevdone : 1;
- guint8 rr_specsite : 1;
- guint8 rr_forceapply : 1;
- guint8 rr_reqresult : 1;
- guint8 rr_test : 1;
- guint16 rr_maxdelay;
- guint32 rr_reserved;
-};
-#endif /* BYTE_ORDER */
#define rr_type rr_hdr.icmp6_type
#define rr_code rr_hdr.icmp6_code
#define RPM_PCO_SETGLOBAL 3
#define RPM_PCO_MAX 4
-#if BYTE_ORDER == BIG_ENDIAN /* net byte order */
-struct rr_pco_use { /* use prefix part */
- guint8 rpu_uselen;
- guint8 rpu_keeplen;
- guint8 rpu_mask_onlink : 1;
- guint8 rpu_mask_autonomous : 1;
- guint8 rpu_mask_reserved : 6;
- guint8 rpu_onlink : 1;
- guint8 rpu_autonomous : 1;
- guint8 rpu_raflags_reserved : 6;
- guint32 rpu_vltime;
- guint32 rpu_pltime;
- guint32 rpu_decr_vltime : 1;
- guint32 rpu_decr_pltime : 1;
- guint32 rpu_flags_reserved : 6;
- guint32 rpu_reserved : 24;
- struct e_in6_addr rpu_prefix;
-};
-#elif BYTE_ORDER == LITTLE_ENDIAN
struct rr_pco_use { /* use prefix part */
guint8 rpu_uselen;
guint8 rpu_keeplen;
- guint8 rpu_mask_reserved : 6;
- guint8 rpu_mask_autonomous : 1;
- guint8 rpu_mask_onlink : 1;
- guint8 rpu_raflags_reserved : 6;
- guint8 rpu_autonomous : 1;
- guint8 rpu_onlink : 1;
+ guint8 rpu_ramask;
+ guint8 rpu_raflags;
guint32 rpu_vltime;
guint32 rpu_pltime;
- guint32 rpu_flags_reserved : 6;
- guint32 rpu_decr_pltime : 1;
- guint32 rpu_decr_vltime : 1;
- guint32 rpu_reserved : 24;
+ guint32 rpu_flags;
struct e_in6_addr rpu_prefix;
};
-#endif /* BYTE_ORDER */
-#if BYTE_ORDER == BIG_ENDIAN /* net byte order */
-struct rr_result { /* router renumbering result message */
- guint8 rrr_reserved;
- guint8 rrr_flags_reserved : 6;
- guint8 rrr_outofbound : 1;
- guint8 rrr_forbidden : 1;
- guint8 rrr_ordinal;
- guint8 rrr_matchedlen;
- guint32 rrr_ifid;
- struct e_in6_addr rrr_prefix;
-};
-#elif BYTE_ORDER == LITTLE_ENDIAN
+#define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
+#define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
+
+/* network endian */
+#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
+#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
+
struct rr_result { /* router renumbering result message */
- guint8 rrr_reserved;
- guint8 rrr_forbidden : 1;
- guint8 rrr_outofbound : 1;
- guint8 rrr_flags_reserved : 6;
+ guint16 rrr_flags;
guint8 rrr_ordinal;
guint8 rrr_matchedlen;
guint32 rrr_ifid;
struct e_in6_addr rrr_prefix;
};
-#endif /* BYTE_ORDER */
+
+/* network endian */
+#define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
+#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
+
+void capture_ipv6(const guchar *, int, int, packet_counts *);
+
#endif /* __PACKET_IPV6_H_DEFINED__ */
git.samba.org / obnox / wireshark / wip.git / blobdiff