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/* * $Id: libnet-headers.h,v 1.14 2004/03/11 18:50:20 mike Exp $ * * libnet-headers.h - Network routine library headers header file * * Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com> * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 __LIBNET_HEADERS_H #define __LIBNET_HEADERS_H /** * @file libnet-headers.h * @brief libnet header information */ /** * Libnet defines header sizes for every builder function exported. */ #define LIBNET_802_1Q_H 0x12 /**< 802.1Q header: 18 bytes */ #define LIBNET_802_1X_H 0x04 /**< 802.1X header: 4 bytes */ #define LIBNET_802_2_H 0x03 /**< 802.2 LLC header: 3 bytes */ #define LIBNET_802_2SNAP_H 0x08 /**< 802.2 LLC/SNAP header:8 bytes */ #define LIBNET_802_3_H 0x0e /**< 802.3 header: 14 bytes */ #define LIBNET_ARP_H 0x08 /**< ARP header w/o addrs: 8 bytes */ #define LIBNET_ARP_ETH_IP_H 0x1c /**< ARP w/ ETH and IP: 28 bytes */ #define LIBNET_BGP4_HEADER_H 0x13 /**< BGP header: 19 bytes */ #define LIBNET_BGP4_OPEN_H 0x0a /**< BGP open header: 10 bytes */ #define LIBNET_BGP4_UPDATE_H 0x04 /**< BGP open header: 4 bytes */ #define LIBNET_BGP4_NOTIFICATION_H 0x02 /**< BGP notif. header: 2 bytes */ #define LIBNET_CDP_H 0x08 /**< CDP header base: 8 bytes */ #define LIBNET_DHCPV4_H 0xf0 /**< DHCP v4 header: 240 bytes */ #define LIBNET_UDP_DNSV4_H 0x0c /**< UDP DNS v4 header: 12 bytes */ #define LIBNET_TCP_DNSV4_H 0x0e /**< TCP DNS v4 header: 14 bytes */ #define LIBNET_ETH_H 0x0e /**< Ethernet header: 14 bytes */ #define LIBNET_FDDI_H 0x15 /**< FDDI header: 21 bytes */ #define LIBNET_ICMPV4_H 0x04 /**< ICMP header base: 4 bytes */ #define LIBNET_ICMPV4_ECHO_H 0x08 /**< ICMP_ECHO header: 8 bytes */ #define LIBNET_ICMPV4_MASK_H 0x0c /**< ICMP_MASK header: 12 bytes */ #define LIBNET_ICMPV4_UNREACH_H 0x08 /**< ICMP_UNREACH header: 8 bytes */ #define LIBNET_ICMPV4_TIMXCEED_H 0x08 /**< ICMP_TIMXCEED header: 8 bytes */ #define LIBNET_ICMPV4_REDIRECT_H 0x08 /**< ICMP_REDIRECT header: 8 bytes */ #define LIBNET_ICMPV4_TS_H 0x14 /**< ICMP_TIMESTAMP headr:20 bytes */ #define LIBNET_ICMPV6_H 0x08 /**< ICMP6 header base: 8 bytes */ #define LIBNET_IGMP_H 0x08 /**< IGMP header: 8 bytes */ #define LIBNET_IPV4_H 0x14 /**< IPv4 header: 20 bytes */ #define LIBNET_IPV6_H 0x28 /**< IPv6 header: 40 bytes */ #define LIBNET_IPV6_FRAG_H 0x08 /**< IPv6 frag header: 8 bytes */ #define LIBNET_IPV6_ROUTING_H 0x04 /**< IPv6 frag header base:4 bytes */ #define LIBNET_IPV6_DESTOPTS_H 0x02 /**< IPv6 dest opts base: 2 bytes */ #define LIBNET_IPV6_HBHOPTS_H 0x02 /**< IPv6 hop/hop opt base:2 bytes */ #define LIBNET_IPSEC_ESP_HDR_H 0x0c /**< IPSEC ESP header: 12 bytes */ #define LIBNET_IPSEC_ESP_FTR_H 0x02 /**< IPSEC ESP footer: 2 bytes */ #define LIBNET_IPSEC_AH_H 0x10 /**< IPSEC AH header: 16 bytes */ #define LIBNET_ISL_H 0x1a /**< ISL header: 26 bytes */ #define LIBNET_GRE_H 0x04 /**< GRE header: 4 bytes */ #define LIBNET_GRE_SRE_H 0x04 /**< GRE SRE header: 4 bytes */ #define LIBNET_MPLS_H 0x04 /**< MPLS header: 4 bytes */ #define LIBNET_OSPF_H 0x10 /**< OSPF header: 16 bytes */ #define LIBNET_OSPF_HELLO_H 0x18 /**< OSPF hello header: 24 bytes */ #define LIBNET_OSPF_DBD_H 0x08 /**< OSPF DBD header: 8 bytes */ #define LIBNET_OSPF_LSR_H 0x0c /**< OSPF LSR header: 12 bytes */ #define LIBNET_OSPF_LSU_H 0x04 /**< OSPF LSU header: 4 bytes */ #define LIBNET_OSPF_LSA_H 0x14 /**< OSPF LSA header: 20 bytes */ #define LIBNET_OSPF_AUTH_H 0x08 /**< OSPF AUTH header: 8 bytes */ #define LIBNET_OSPF_CKSUM 0x10 /**< OSPF CKSUM header: 16 bytes */ #define LIBNET_OSPF_LS_RTR_H 0x10 /**< OSPF LS RTR header: 16 bytes */ #define LIBNET_OSPF_LS_NET_H 0x08 /**< OSPF LS NET header: 8 bytes */ #define LIBNET_OSPF_LS_SUM_H 0x0c /**< OSPF LS SUM header: 12 bytes */ #define LIBNET_OSPF_LS_AS_EXT_H 0x10 /**< OSPF LS AS header: 16 bytes */ #define LIBNET_NTP_H 0x30 /**< NTP header: 48 bytes */ #define LIBNET_RIP_H 0x18 /**< RIP header base: 24 bytes */ #define LIBNET_RPC_CALL_H 0x28 /**< RPC header: 40 bytes * (assuming 8 byte auth header) */ #define LIBNET_RPC_CALL_TCP_H 0x2c /**< RPC header: 44 bytes * (with record marking) */ #define LIBNET_SEBEK_H 0x30 /* sebek header: 48 bytes */ #define LIBNET_STP_CONF_H 0x23 /**< STP conf header: 35 bytes */ #define LIBNET_STP_TCN_H 0x04 /**< STP tcn header: 4 bytes */ #define LIBNET_TOKEN_RING_H 0x16 /**< Token Ring header: 22 bytes */ #define LIBNET_TCP_H 0x14 /**< TCP header: 20 bytes */ #define LIBNET_UDP_H 0x08 /**< UDP header: 8 bytes */ #define LIBNET_VRRP_H 0x08 /**< VRRP header: 8 bytes */ /** * IEEE 802.1Q (Virtual Local Area Network) VLAN header, static header * size: 18 bytes */ struct libnet_802_1q_hdr { u_int8_t vlan_dhost[ETHER_ADDR_LEN]; /**< destination ethernet address */ u_int8_t vlan_shost[ETHER_ADDR_LEN]; /**< source ethernet address */ u_int16_t vlan_tpi; /**< tag protocol ID */ u_int16_t vlan_priority_c_vid; /**< priority | VLAN ID */ #define LIBNET_802_1Q_PRIMASK 0x0007 /**< priority mask */ #define LIBNET_802_1Q_CFIMASK 0x0001 /**< CFI mask */ #define LIBNET_802_1Q_VIDMASK 0x0fff /**< vid mask */ u_int16_t vlan_len; /**< length or type (802.3 / Eth 2) */ }; /** * IEEE 802.1X EAP (Extensible Authentication Protocol) header, static header * size: 4 bytes */ struct libnet_802_1x_hdr { u_int8_t dot1x_version; /**< protocol version */ u_int8_t dot1x_type; /**< frame type */ #define LIBNET_802_1X_PACKET 0x00 /**< 802.1x packet */ #define LIBNET_802_1X_START 0x01 /**< 802.1x start */ #define LIBNET_802_1X_LOGOFF 0x02 /**< 802.1x logoff */ #define LIBNET_802_1X_KEY 0x03 /**< 802.1x key */ #define LIBNET_802_1X_ENCASFAL 0x04 /**< 802.1x encasfal */ u_int16_t dot1x_length; /**< total frame length */ }; /* * IEEE 802.2 LLC header * Link Layer Control * static header size: 3 bytes */ struct libnet_802_2_hdr { u_int8_t llc_dsap; /* destination service access point */ u_int8_t llc_ssap; /* source service access point */ #define LIBNET_SAP_STP 0x42 #define LIBNET_SAP_SNAP 0xaa u_int8_t llc_control; /* control field */ }; /* * IEEE 802.2 LLC/SNAP header * SubNetwork Attachment Point * static header size: 8 bytes */ struct libnet_802_2snap_hdr { u_int8_t snap_dsap; /* destination service access point */ u_int8_t snap_ssap; /* destination service access point */ u_int8_t snap_control; /* control field */ u_int8_t snap_oui[3]; /* OUI */ u_int16_t snap_type; /* type */ }; /* * 802.3 header * IEEE Ethernet * Static header size: 14 bytes */ struct libnet_802_3_hdr { u_int8_t _802_3_dhost[ETHER_ADDR_LEN];/* destination ethernet address */ u_int8_t _802_3_shost[ETHER_ADDR_LEN];/* source ethernet address */ u_int16_t _802_3_len; /* packet type ID */ }; /* * ARP header * Address Resolution Protocol * Base header size: 8 bytes */ struct libnet_arp_hdr { u_int16_t ar_hrd; /* format of hardware address */ #define ARPHRD_NETROM 0 /* from KA9Q: NET/ROM pseudo */ #define ARPHRD_ETHER 1 /* Ethernet 10Mbps */ #define ARPHRD_EETHER 2 /* Experimental Ethernet */ #define ARPHRD_AX25 3 /* AX.25 Level 2 */ #define ARPHRD_PRONET 4 /* PROnet token ring */ #define ARPHRD_CHAOS 5 /* Chaosnet */ #define ARPHRD_IEEE802 6 /* IEEE 802.2 Ethernet/TR/TB */ #define ARPHRD_ARCNET 7 /* ARCnet */ #define ARPHRD_APPLETLK 8 /* APPLEtalk */ #define ARPHRD_LANSTAR 9 /* Lanstar */ #define ARPHRD_DLCI 15 /* Frame Relay DLCI */ #define ARPHRD_ATM 19 /* ATM */ #define ARPHRD_METRICOM 23 /* Metricom STRIP (new IANA id) */ #define ARPHRD_IPSEC 31 /* IPsec tunnel */ u_int16_t ar_pro; /* format of protocol address */ u_int8_t ar_hln; /* length of hardware address */ u_int8_t ar_pln; /* length of protocol addres */ u_int16_t ar_op; /* operation type */ #define ARPOP_REQUEST 1 /* req to resolve address */ #define ARPOP_REPLY 2 /* resp to previous request */ #define ARPOP_REVREQUEST 3 /* req protocol address given hardware */ #define ARPOP_REVREPLY 4 /* resp giving protocol address */ #define ARPOP_INVREQUEST 8 /* req to identify peer */ #define ARPOP_INVREPLY 9 /* resp identifying peer */ /* address information allocated dynamically */ }; /* * BGP4 header * Border Gateway Protocol 4 * Base header size : 19 bytes */ struct libnet_bgp4_header_hdr { #define LIBNET_BGP4_MARKER_SIZE 16 u_int8_t marker[LIBNET_BGP4_MARKER_SIZE]; u_int16_t len; u_int8_t type; #define LIBNET_BGP4_OPEN 1 #define LIBNET_BGP4_UPDATE 2 #define LIBNET_BGP4_NOTIFICATION 3 #define LIBNET_BGP4_KEEPALIVE 4 }; /* * BGP4 open header * Border Gateway Protocol 4 * Base header size : 10 bytes */ struct libnet_bgp4_open_hdr { u_int8_t version; u_int16_t src_as; u_int16_t hold_time; u_int32_t bgp_id; u_int8_t opt_len; }; /* * BGP4 notification message * * Border Gateway Protocol 4 * Base header size : 2 bytes * * Use payload if you need data */ struct libnet_bgp4_notification_hdr { #define LIBNET_BGP4_MESSAGE_HEADER_ERROR 1 #define LIBNET_BGP4_OPEN_MESSAGE_ERROR 2 #define LIBNET_BGP4_UPDATE_MESSAGE_ERROR 3 #define LIBNET_BGP4_HOLD_TIMER_EXPIRED 4 #define LIBNET_BGP4_FINITE_STATE__ERROR 5 #define LIBNET_BGP4_CEASE 6 u_int8_t err_code; /* Message Header Error subcodes */ #define LIBNET_BGP4_CONNECTION_NOT_SYNCHRONIZED 1 #define LIBNET_BGP4_BAD_MESSAGE_LENGTH 2 #define LIBNET_BGP4_BAD_MESSAGE_TYPE 3 /* OPEN Message Error subcodes */ #define LIBNET_BGP4_UNSUPPORTED_VERSION_NUMBER 1 #define LIBNET_BGP4_BAD_PEER_AS 2 #define LIBNET_BGP4_BAD_BGP_IDENTIFIER 3 #define LIBNET_BGP4_UNSUPPORTED_OPTIONAL_PARAMETER 4 #define LIBNET_BGP4_AUTHENTICATION_FAILURE 5 #define LIBNET_BGP4_UNACCEPTABLE_HOLD_TIME 6 /* UPDATE Message Error subcodes */ #define LIBNET_BGP4_MALFORMED_ATTRIBUTE_LIST #define LIBNET_BGP4_UNRECOGNIZED_WELL_KNOWN_ATTRIBUTE #define LIBNET_BGP4_MISSING_WELL_KNOWN_ATTRIBUTE #define LIBNET_BGP4_ATTRIBUTE_FLAGS_ERROR #define LIBNET_BGP4_ATTRIBUTE_LENGTH_ERROR #define LIBNET_BGP4_INVALID_ORIGIN_ATTRIBUTE #define LIBNET_BGP4_AS_ROUTING_LOOP #define LIBNET_BGP4_INVALID_NEXT_HOP_ATTRIBUTE #define LIBNET_BGP4_OPTIONAL_ATTRIBUTE_ERROR #define LIBNET_BGP4_INVALID_NETWORK_FIELD #define LIBNET_BGP4_MALFORMED_AS_PATH u_int8_t err_subcode; }; /* * CDP header * Cisco Discovery Protocol * Base header size: 8 bytes */ /* * For checksum stuff -- IANA says 135-254 is "unassigned" as of 12.2001. * Let's hope this one stays that way for a while! */ #define LIBNET_PROTO_CDP 200 struct libnet_cdp_hdr { u_int8_t cdp_version; /* version (should always be 0x01) */ u_int8_t cdp_ttl; /* time reciever should hold info in this packet */ u_int16_t cdp_sum; /* checksum */ u_int16_t cdp_type; /* type */ #define LIBNET_CDP_DEVID 0x1 /* device id */ #define LIBNET_CDP_ADDRESS 0x2 /* address */ #define LIBNET_CDP_PORTID 0x3 /* port id */ #define LIBNET_CDP_CAPABIL 0x4 /* capabilities */ #define LIBNET_CDP_VERSION 0x5 /* version */ #define LIBNET_CDP_PLATFORM 0x6 /* platform */ #define LIBNET_CDP_IPPREFIX 0x7 /* ip prefix */ u_int16_t cdp_len; /* type + length + value */ /* value information done dynamically */ /* CDP capabilities */ #define LIBNET_CDP_CAP_L3R 0x01/* performs level 3 routing */ #define LIBNET_CDP_CAP_L2B 0x02/* performs level 2 transparent bridging */ #define LIBNET_CDP_CAP_L2SRB 0x04/* performs level 2 sourceroute bridging */ #define LIBNET_CDP_CAP_L2S 0x08/* performs level 2 switching */ #define LIBNET_CDP_CAP_SR 0x10/* sends and recieves packets on a network */ #define LIBNET_CDP_CAP_NOI 0x20/* does not forward IGMP on non-router ports */ #define LIBNET_CDP_CAP_L1F 0x40/* provides level 1 functionality */ }; /* * Used as an overlay for type/len/values */ struct libnet_cdp_value_hdr { u_int16_t cdp_type; u_int16_t cdp_len; }; /* * DHCP header * Dynamic Host Configuration Protocol * Static header size: f0 bytes */ struct libnet_dhcpv4_hdr { u_int8_t dhcp_opcode; /* opcode */ #define LIBNET_DHCP_REQUEST 0x1 #define LIBNET_DHCP_REPLY 0x2 u_int8_t dhcp_htype; /* hardware address type */ u_int8_t dhcp_hlen; /* hardware address length */ u_int8_t dhcp_hopcount; /* used by proxy servers */ u_int32_t dhcp_xid; /* transaction ID */ u_int16_t dhcp_secs; /* number of seconds since trying to bootstrap */ u_int16_t dhcp_flags; /* flags for DHCP, unused for BOOTP */ u_int32_t dhcp_cip; /* client's IP */ u_int32_t dhcp_yip; /* your IP */ u_int32_t dhcp_sip; /* server's IP */ u_int32_t dhcp_gip; /* gateway IP */ u_int8_t dhcp_chaddr[16]; /* client hardware address */ u_int8_t dhcp_sname[64]; /* server host name */ u_int8_t dhcp_file[128]; /* boot file name */ u_int32_t dhcp_magic; /* BOOTP magic header */ #define DHCP_MAGIC 0x63825363 #define LIBNET_BOOTP_MIN_LEN 0x12c #define LIBNET_DHCP_PAD 0x00 #define LIBNET_DHCP_SUBNETMASK 0x01 #define LIBNET_DHCP_TIMEOFFSET 0x02 #define LIBNET_DHCP_ROUTER 0x03 #define LIBNET_DHCP_TIMESERVER 0x04 #define LIBNET_DHCP_NAMESERVER 0x05 #define LIBNET_DHCP_DNS 0x06 #define LIBNET_DHCP_LOGSERV 0x07 #define LIBNET_DHCP_COOKIESERV 0x08 #define LIBNET_DHCP_LPRSERV 0x09 #define LIBNET_DHCP_IMPSERV 0x0a #define LIBNET_DHCP_RESSERV 0x0b #define LIBNET_DHCP_HOSTNAME 0x0c #define LIBNET_DHCP_BOOTFILESIZE 0x0d #define LIBNET_DHCP_DUMPFILE 0x0e #define LIBNET_DHCP_DOMAINNAME 0x0f #define LIBNET_DHCP_SWAPSERV 0x10 #define LIBNET_DHCP_ROOTPATH 0x11 #define LIBNET_DHCP_EXTENPATH 0x12 #define LIBNET_DHCP_IPFORWARD 0x13 #define LIBNET_DHCP_SRCROUTE 0x14 #define LIBNET_DHCP_POLICYFILTER 0x15 #define LIBNET_DHCP_MAXASMSIZE 0x16 #define LIBNET_DHCP_IPTTL 0x17 #define LIBNET_DHCP_MTUTIMEOUT 0x18 #define LIBNET_DHCP_MTUTABLE 0x19 #define LIBNET_DHCP_MTUSIZE 0x1a #define LIBNET_DHCP_LOCALSUBNETS 0x1b #define LIBNET_DHCP_BROADCASTADDR 0x1c #define LIBNET_DHCP_DOMASKDISCOV 0x1d #define LIBNET_DHCP_MASKSUPPLY 0x1e #define LIBNET_DHCP_DOROUTEDISC 0x1f #define LIBNET_DHCP_ROUTERSOLICIT 0x20 #define LIBNET_DHCP_STATICROUTE 0x21 #define LIBNET_DHCP_TRAILERENCAP 0x22 #define LIBNET_DHCP_ARPTIMEOUT 0x23 #define LIBNET_DHCP_ETHERENCAP 0x24 #define LIBNET_DHCP_TCPTTL 0x25 #define LIBNET_DHCP_TCPKEEPALIVE 0x26 #define LIBNET_DHCP_TCPALIVEGARBAGE 0x27 #define LIBNET_DHCP_NISDOMAIN 0x28 #define LIBNET_DHCP_NISSERVERS 0x29 #define LIBNET_DHCP_NISTIMESERV 0x2a #define LIBNET_DHCP_VENDSPECIFIC 0x2b #define LIBNET_DHCP_NBNS 0x2c #define LIBNET_DHCP_NBDD 0x2d #define LIBNET_DHCP_NBTCPIP 0x2e #define LIBNET_DHCP_NBTCPSCOPE 0x2f #define LIBNET_DHCP_XFONT 0x30 #define LIBNET_DHCP_XDISPLAYMGR 0x31 #define LIBNET_DHCP_DISCOVERADDR 0x32 #define LIBNET_DHCP_LEASETIME 0x33 #define LIBNET_DHCP_OPTIONOVERLOAD 0x34 #define LIBNET_DHCP_MESSAGETYPE 0x35 #define LIBNET_DHCP_SERVIDENT 0x36 #define LIBNET_DHCP_PARAMREQUEST 0x37 #define LIBNET_DHCP_MESSAGE 0x38 #define LIBNET_DHCP_MAXMSGSIZE 0x39 #define LIBNET_DHCP_RENEWTIME 0x3a #define LIBNET_DHCP_REBINDTIME 0x3b #define LIBNET_DHCP_CLASSSID 0x3c #define LIBNET_DHCP_CLIENTID 0x3d #define LIBNET_DHCP_NISPLUSDOMAIN 0x40 #define LIBNET_DHCP_NISPLUSSERVERS 0x41 #define LIBNET_DHCP_MOBILEIPAGENT 0x44 #define LIBNET_DHCP_SMTPSERVER 0x45 #define LIBNET_DHCP_POP3SERVER 0x46 #define LIBNET_DHCP_NNTPSERVER 0x47 #define LIBNET_DHCP_WWWSERVER 0x48 #define LIBNET_DHCP_FINGERSERVER 0x49 #define LIBNET_DHCP_IRCSERVER 0x4a #define LIBNET_DHCP_STSERVER 0x4b #define LIBNET_DHCP_STDASERVER 0x4c #define LIBNET_DHCP_END 0xff #define LIBNET_DHCP_MSGDISCOVER 0x01 #define LIBNET_DHCP_MSGOFFER 0x02 #define LIBNET_DHCP_MSGREQUEST 0x03 #define LIBNET_DHCP_MSGDECLINE 0x04 #define LIBNET_DHCP_MSGACK 0x05 #define LIBNET_DHCP_MSGNACK 0x06 #define LIBNET_DHCP_MSGRELEASE 0x07 #define LIBNET_DHCP_MSGINFORM 0x08 }; /* * Base DNSv4 header * Domain Name System * Base header size: 12/14 bytes */ /* this little guy got left out in the cold */ #define LIBNET_DNS_H LIBNET_UDP_DNSV4_H struct libnet_dnsv4_hdr { u_int16_t h_len; /* length of the packet - only used with TCP */ u_int16_t id; /* DNS packet ID */ u_int16_t flags; /* DNS flags */ u_int16_t num_q; /* Number of questions */ u_int16_t num_answ_rr; /* Number of answer resource records */ u_int16_t num_auth_rr; /* Number of authority resource records */ u_int16_t num_addi_rr; /* Number of additional resource records */ }; /* * Ethernet II header * Static header size: 14 bytes */ struct libnet_ethernet_hdr { u_int8_t ether_dhost[ETHER_ADDR_LEN];/* destination ethernet address */ u_int8_t ether_shost[ETHER_ADDR_LEN];/* source ethernet address */ u_int16_t ether_type; /* protocol */ }; #ifndef ETHERTYPE_PUP #define ETHERTYPE_PUP 0x0200 /* PUP protocol */ #endif #ifndef ETHERTYPE_IP #define ETHERTYPE_IP 0x0800 /* IP protocol */ #endif #ifndef ETHERTYPE_ARP #define ETHERTYPE_ARP 0x0806 /* addr. resolution protocol */ #endif #ifndef ETHERTYPE_REVARP #define ETHERTYPE_REVARP 0x8035 /* reverse addr. resolution protocol */ #endif #ifndef ETHERTYPE_VLAN #define ETHERTYPE_VLAN 0x8100 /* IEEE 802.1Q VLAN tagging */ #endif #ifndef ETHERTYPE_EAP #define ETHERTYPE_EAP 0x888e /* IEEE 802.1X EAP authentication */ #endif #ifndef ETHERTYPE_MPLS #define ETHERTYPE_MPLS 0x8847 /* MPLS */ #endif #ifndef ETHERTYPE_LOOPBACK #define ETHERTYPE_LOOPBACK 0x9000 /* used to test interfaces */ #endif struct libnet_ether_addr { u_int8_t ether_addr_octet[6]; /* Ethernet address */ }; /* * Fiber Distributed Data Interface header * * Static header size: 21 bytes (LLC and 48-bit address addr only) * * Note: Organization field is 3 bytes which throws off the * alignment of type. Therefore fddi_type (19 bytes in) * is specified as two u_int8_ts. */ struct libnet_fddi_hdr { u_int8_t fddi_frame_control; /* Class/Format/Priority */ #define LIBNET_FDDI_LLC_FRAME 0x10 #define LIBNET_FDDI_48BIT_ADDR 0x40 #define LIBNET_FDDI_FC_REQD LIBNET_FDDI_LLC_FRAME | LIBNET_FDDI_48BIT_ADDR u_int8_t fddi_dhost[FDDI_ADDR_LEN]; /* destination fddi address */ u_int8_t fddi_shost[FDDI_ADDR_LEN]; /* source fddi address */ u_int8_t fddi_llc_dsap; /* DSAP */ u_int8_t fddi_llc_ssap; /* SSAP */ u_int8_t fddi_llc_control_field; /* Class/Format/Priority */ u_int8_t fddi_llc_org_code[LIBNET_ORG_CODE_SIZE]; /* Organization Code 3-bytes */ u_int8_t fddi_type; /* Protocol Type */ u_int8_t fddi_type1; /* see note above. */ #define FDDI_TYPE_IP 0x0800 /* IP protocol */ #define FDDI_TYPE_ARP 0x0806 /* addr. resolution protocol */ #define FDDI_TYPE_REVARP 0x8035 /* reverse addr. resolution protocol */ }; struct libnet_fddi_addr { u_int8_t fddi_addr_octet[6]; /* FDDI address */ }; /* * GRE header - RFC 1701 & 2637 * Generic Routing Encapsulation (GRE) * Base header size: 4 bytes */ struct libnet_gre_hdr { u_int16_t flags_ver; #define GRE_CSUM 0x8000 #define GRE_ROUTING 0x4000 #define GRE_KEY 0x2000 #define GRE_SEQ 0x1000 #define GRE_STRICT 0x0800 #define GRE_REC 0x0700 #define GRE_ACK 0x0080 #define GRE_FLAGS_MASK 0x00F8 #define GRE_VERSION_MASK 0x0007 #define GRE_VERSION_0 0x0000 #define GRE_VERSION_1 0x0001 u_int16_t type; #define GRE_SNA 0x0004 #define GRE_OSI_NETWORK_LAYER 0x00FE #define GRE_PUP 0x0200 #define GRE_XNS 0x0600 #define GRE_IP 0x0800 #define GRE_CHAOS 0x0804 #define GRE_RFC_826_ARP 0x0806 #define GRE_FRAME_RELAY_ARP 0x0808 #define GRE_VINES 0x0BAD #define GRE_VINES_ECHO 0x0BAE #define GRE_VINES_LOOPBACK 0x0BAF #define GRE_DECNET 0x6003 #define GRE_TRANSPARENT_ETHERNET_BRIDGING 0x6558 #define GRE_RAW_FRAME_RELAY 0x6559 #define GRE_APOLLO_DOMAIN 0x8019 #define GRE_ETHERTALK 0x809B #define GRE_NOVELL_IPX 0x8137 #define GRE_RFC_1144_TCP_IP_COMPRESSION 0x876B #define GRE_IP_AUTONOMOUS_SYSTEMS 0x876C #define GRE_SECURE_DATA 0x876D #define GRE_PPP 0x880b /* taken from RFC 2637 */ union { struct { u_int16_t sum; /* optional */ u_int16_t offset; /* optional */ u_int32_t key; /* optional */ u_int32_t seq; /* optional */ } _gre; struct { u_int16_t payload_s; /* optional */ u_int16_t callID; /* optional */ u_int32_t seq; /* optional */ u_int32_t ack; /* optional */ } _egre; }_data; #define gre_sum _data._gre.sum #define gre_offset _data._gre.offset #define gre_key _data._gre.key #define gre_seq _data._gre.seq #define egre_payload_s _data._egre.payload_s #define egre_callID _data._egre.callID #define egre_seq _data._egre.seq #define egre_ack _data._egre.ack }; #ifndef IPPROTO_GRE #define IPPROTO_GRE 47 #endif /* * Source Route Entries (SRE) * This is used for GRE as the Routing field is a list of SREs - RFC 1701 * Base header size: 4 bytes */ struct libnet_gre_sre_hdr { u_int16_t af; /* address familly */ u_int8_t sre_offset; u_int8_t sre_length; u_int8_t *routing; }; /* * IPv4 header * Internet Protocol, version 4 * Static header size: 20 bytes */ struct libnet_ipv4_hdr { #if (LIBNET_LIL_ENDIAN) u_int8_t ip_hl:4, /* header length */ ip_v:4; /* version */ #endif #if (LIBNET_BIG_ENDIAN) u_int8_t ip_v:4, /* version */ ip_hl:4; /* header length */ #endif u_int8_t ip_tos; /* type of service */ #ifndef IPTOS_LOWDELAY #define IPTOS_LOWDELAY 0x10 #endif #ifndef IPTOS_THROUGHPUT #define IPTOS_THROUGHPUT 0x08 #endif #ifndef IPTOS_RELIABILITY #define IPTOS_RELIABILITY 0x04 #endif #ifndef IPTOS_LOWCOST #define IPTOS_LOWCOST 0x02 #endif u_int16_t ip_len; /* total length */ u_int16_t ip_id; /* identification */ u_int16_t ip_off; #ifndef IP_RF #define IP_RF 0x8000 /* reserved fragment flag */ #endif #ifndef IP_DF #define IP_DF 0x4000 /* dont fragment flag */ #endif #ifndef IP_MF #define IP_MF 0x2000 /* more fragments flag */ #endif #ifndef IP_OFFMASK #define IP_OFFMASK 0x1fff /* mask for fragmenting bits */ #endif u_int8_t ip_ttl; /* time to live */ u_int8_t ip_p; /* protocol */ u_int16_t ip_sum; /* checksum */ struct in_addr ip_src, ip_dst; /* source and dest address */ }; /* * IP options */ #ifndef IPOPT_EOL #define IPOPT_EOL 0 /* end of option list */ #endif #ifndef IPOPT_NOP #define IPOPT_NOP 1 /* no operation */ #endif #ifndef IPOPT_RR #define IPOPT_RR 7 /* record packet route */ #endif #ifndef IPOPT_TS #define IPOPT_TS 68 /* timestamp */ #endif #ifndef IPOPT_SECURITY #define IPOPT_SECURITY 130 /* provide s,c,h,tcc */ #endif #ifndef IPOPT_LSRR #define IPOPT_LSRR 131 /* loose source route */ #endif #ifndef IPOPT_SATID #define IPOPT_SATID 136 /* satnet id */ #endif #ifndef IPOPT_SSRR #define IPOPT_SSRR 137 /* strict source route */ #endif struct libnet_in6_addr { union { u_int8_t __u6_addr8[16]; u_int16_t __u6_addr16[8]; u_int32_t __u6_addr32[4]; } __u6_addr; /* 128-bit IP6 address */ }; #define libnet_s6_addr __u6_addr.__u6_addr8 /* * IPv6 header * Internet Protocol, version 6 * Static header size: 40 bytes */ struct libnet_ipv6_hdr { u_int8_t ip_flags[4]; /* version, traffic class, flow label */ u_int16_t ip_len; /* total length */ u_int8_t ip_nh; /* next header */ u_int8_t ip_hl; /* hop limit */ struct libnet_in6_addr ip_src, ip_dst; /* source and dest address */ }; /* * IPv6 frag header * Internet Protocol, version 6 * Static header size: 8 bytes */ #define LIBNET_IPV6_NH_FRAGMENT 44 struct libnet_ipv6_frag_hdr { u_int8_t ip_nh; /* next header */ u_int8_t ip_reserved; /* reserved */ u_int16_t ip_frag; /* fragmentation stuff */ u_int32_t ip_id; /* id */ }; /* * IPv6 routing header * Internet Protocol, version 6 * Base header size: 4 bytes */ #define LIBNET_IPV6_NH_ROUTING 43 struct libnet_ipv6_routing_hdr { u_int8_t ip_nh; /* next header */ u_int8_t ip_len; /* length of header in 8 octet units (sans 1st) */ u_int8_t ip_rtype; /* routing type */ u_int8_t ip_segments; /* segments left */ /* routing information allocated dynamically */ }; /* * IPv6 destination options header * Internet Protocol, version 6 * Base header size: 2 bytes */ #define LIBNET_IPV6_NH_DESTOPTS 60 struct libnet_ipv6_destopts_hdr { u_int8_t ip_nh; /* next header */ u_int8_t ip_len; /* length of header in 8 octet units (sans 1st) */ /* destination options information allocated dynamically */ }; /* * IPv6 hop by hop options header * Internet Protocol, version 6 * Base header size: 2 bytes */ #define LIBNET_IPV6_NH_HBH 0 struct libnet_ipv6_hbhopts_hdr { u_int8_t ip_nh; /* next header */ u_int8_t ip_len; /* length of header in 8 octet units (sans 1st) */ /* destination options information allocated dynamically */ }; /* * ICMP6 header * Internet Control Message Protocol v6 * Base header size: 8 bytes */ #ifndef IPPROTO_ICMP6 #define IPPROTO_ICMP6 0x3a #endif struct libnet_icmpv6_hdr { u_int8_t icmp_type; /* ICMP type */ #ifndef ICMP6_ECHO #define ICMP6_ECHO 128 #endif #ifndef ICMP6_ECHOREPLY #define ICMP6_ECHOREPLY 129 #endif #ifndef ICMP6_UNREACH #define ICMP6_UNREACH 1 #endif #ifndef ICMP6_PKTTOOBIG #define ICMP6_PKTTOOBIG 2 #endif #ifndef ICMP6_TIMXCEED #define ICMP6_TIMXCEED 3 #endif #ifndef ICMP6_PARAMPROB #define ICMP6_PARAMPROB 4 #endif u_int8_t icmp_code; /* ICMP code */ u_int16_t icmp_sum; /* ICMP Checksum */ u_int16_t id; /* ICMP id */ u_int16_t seq; /* ICMP sequence number */ }; /* * ICMP header * Internet Control Message Protocol * Base header size: 4 bytes */ struct libnet_icmpv4_hdr { u_int8_t icmp_type; /* ICMP type */ #ifndef ICMP_ECHOREPLY #define ICMP_ECHOREPLY 0 #endif #ifndef ICMP_UNREACH #define ICMP_UNREACH 3 #endif #ifndef ICMP_SOURCEQUENCH #define ICMP_SOURCEQUENCH 4 #endif #ifndef ICMP_REDIRECT #define ICMP_REDIRECT 5 #endif #ifndef ICMP_ECHO #define ICMP_ECHO 8 #endif #ifndef ICMP_ROUTERADVERT #define ICMP_ROUTERADVERT 9 #endif #ifndef ICMP_ROUTERSOLICIT #define ICMP_ROUTERSOLICIT 10 #endif #ifndef ICMP_TIMXCEED #define ICMP_TIMXCEED 11 #endif #ifndef ICMP_PARAMPROB #define ICMP_PARAMPROB 12 #endif #ifndef ICMP_TSTAMP #define ICMP_TSTAMP 13 #endif #ifndef ICMP_TSTAMPREPLY #define ICMP_TSTAMPREPLY 14 #endif #ifndef ICMP_IREQ #define ICMP_IREQ 15 #endif #ifndef ICMP_IREQREPLY #define ICMP_IREQREPLY 16 #endif #ifndef ICMP_MASKREQ #define ICMP_MASKREQ 17 #endif #ifndef ICMP_MASKREPLY #define ICMP_MASKREPLY 18 #endif u_int8_t icmp_code; /* ICMP code */ #ifndef ICMP_UNREACH_NET #define ICMP_UNREACH_NET 0 #endif #ifndef ICMP_UNREACH_HOST #define ICMP_UNREACH_HOST 1 #endif #ifndef ICMP_UNREACH_PROTOCOL #define ICMP_UNREACH_PROTOCOL 2 #endif #ifndef ICMP_UNREACH_PORT #define ICMP_UNREACH_PORT 3 #endif #ifndef ICMP_UNREACH_NEEDFRAG #define ICMP_UNREACH_NEEDFRAG 4 #endif #ifndef ICMP_UNREACH_SRCFAIL #define ICMP_UNREACH_SRCFAIL 5 #endif #ifndef ICMP_UNREACH_NET_UNKNOWN #define ICMP_UNREACH_NET_UNKNOWN 6 #endif #ifndef ICMP_UNREACH_HOST_UNKNOWN #define ICMP_UNREACH_HOST_UNKNOWN 7 #endif #ifndef ICMP_UNREACH_ISOLATED #define ICMP_UNREACH_ISOLATED 8 #endif #ifndef ICMP_UNREACH_NET_PROHIB #define ICMP_UNREACH_NET_PROHIB 9 #endif #ifndef ICMP_UNREACH_HOST_PROHIB #define ICMP_UNREACH_HOST_PROHIB 10 #endif #ifndef ICMP_UNREACH_TOSNET #define ICMP_UNREACH_TOSNET 11 #endif #ifndef ICMP_UNREACH_TOSHOST #define ICMP_UNREACH_TOSHOST 12 #endif #ifndef ICMP_UNREACH_FILTER_PROHIB #define ICMP_UNREACH_FILTER_PROHIB 13 #endif #ifndef ICMP_UNREACH_HOST_PRECEDENCE #define ICMP_UNREACH_HOST_PRECEDENCE 14 #endif #ifndef ICMP_UNREACH_PRECEDENCE_CUTOFF #define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 #endif #ifndef ICMP_REDIRECT_NET #define ICMP_REDIRECT_NET 0 #endif #ifndef ICMP_REDIRECT_HOST #define ICMP_REDIRECT_HOST 1 #endif #ifndef ICMP_REDIRECT_TOSNET #define ICMP_REDIRECT_TOSNET 2 #endif #ifndef ICMP_REDIRECT_TOSHOST #define ICMP_REDIRECT_TOSHOST 3 #endif #ifndef ICMP_TIMXCEED_INTRANS #define ICMP_TIMXCEED_INTRANS 0 #endif #ifndef ICMP_TIMXCEED_REASS #define ICMP_TIMXCEED_REASS 1 #endif #ifndef ICMP_PARAMPROB_OPTABSENT #define ICMP_PARAMPROB_OPTABSENT 1 #endif u_int16_t icmp_sum; /* ICMP Checksum */ union { struct { u_int16_t id; /* ICMP id */ u_int16_t seq;/* ICMP sequence number */ } echo; #undef icmp_id #undef icmp_seq #define icmp_id hun.echo.id #define icmp_seq hun.echo.seq u_int32_t gateway; /* gateway host */ struct { u_int16_t pad;/* padding */ u_int16_t mtu;/* MTU size */ } frag; } hun; union { struct { n_time its_otime; n_time its_rtime; n_time its_ttime; } ts; struct { struct libnet_ipv4_hdr idi_ip; /* options and then 64 bits of data */ } ip; u_int32_t mask; int8_t data[1]; #undef icmp_mask #define icmp_mask dun.mask #undef icmp_data #define icmp_data dun.data #undef icmp_otime #define icmp_otime dun.ts.its_otime #undef icmp_rtime #define icmp_rtime dun.ts.its_rtime #undef icmp_ttime #define icmp_ttime dun.ts.its_ttime }dun; }; /* * IGMP header * Internet Group Message Protocol * Static header size: 8 bytes */ struct libnet_igmp_hdr { u_int8_t igmp_type; /* IGMP type */ #ifndef IGMP_MEMBERSHIP_QUERY #define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */ #endif #ifndef IGMP_V1_MEMBERSHIP_REPORT #define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */ #endif #ifndef IGMP_V2_MEMBERSHIP_REPORT #define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */ #endif #ifndef IGMP_LEAVE_GROUP #define IGMP_LEAVE_GROUP 0x17 /* Leave-group message */ #endif u_int8_t igmp_code; /* IGMP code */ u_int16_t igmp_sum; /* IGMP checksum */ struct in_addr igmp_group;/* IGMP host IP */ }; /* * IPSEC header * Internet Protocol Security Protocol * Encapsulating Security Payload Header Static header size: 12 bytes * Encapsulating Security Payload Footer Base header size: 2 bytes * Authentication Header Static Size: 16 bytes */ #ifndef IPPROTO_ESP #define IPPROTO_ESP 50 /* not everyone's got this */ #endif struct libnet_esp_hdr { u_int32_t esp_spi; /* security parameter index */ u_int32_t esp_seq; /* ESP sequence number */ u_int32_t esp_iv; /* initialization vector */ }; struct libnet_esp_ftr { u_int8_t esp_pad_len; /* padding length */ u_int8_t esp_nh; /* next header pointer */ int8_t *esp_auth; /* authentication data */ }; #ifndef IPPROTO_AH #define IPPROTO_AH 51 /* not everyone's got this */ #endif struct libnet_ah_hdr { u_int8_t ah_nh; /* next header */ u_int8_t ah_len; /* payload length */ u_int16_t ah_res; /* reserved */ u_int32_t ah_spi; /* security parameter index */ u_int32_t ah_seq; /* AH sequence number */ u_int32_t ah_auth; /* authentication data */ }; /* * ISL header * Cisco Inter-Switch Link * Static header size: 26 bytes */ /* * For checksum stuff -- IANA says 135-254 is "unassigned" as of 12.2001. * Let's hope this one stays that way for a while! */ #define LIBNET_PROTO_ISL 201 struct libnet_isl_hdr { u_int8_t isl_dhost[5]; /* destination address "01:00:0c:00:00" */ #if (LIBNET_LIL_ENDIAN) u_int8_t isl_type:4, /* type of frame */ isl_user:4; /* user defined bits */ #endif #if (LIBNET_BIG_ENDIAN) u_int8_t isl_user:4, /* user defined bits */ isl_type:4; /* type of frame */ #endif u_int8_t isl_shost[6]; /* source address */ u_int16_t isl_len; /* total length of packet - 18 bytes */ u_int8_t isl_snap[6]; /* 0xaaaa03 + vendor code */ u_int16_t isl_vid; /* 15 bit VLAN ID, 1 bit BPDU / CDP indicator */ u_int16_t isl_index; /* port index */ u_int16_t isl_reserved; /* used for FDDI and token ring */ /* ethernet frame and 4 byte isl crc */ }; #ifndef IPPROTO_OSPF #define IPPROTO_OSPF 89 /* not everyone's got this */ #endif #define IPPROTO_OSPF_LSA 890 /* made this up. Hope it's unused */ #define LIBNET_MODX 4102 /* used in LSA checksum */ /* * Options used in multiple OSPF packets * More info can be found in section A.2 of RFC 2328. */ #define LIBNET_OPT_EBIT 0x02 /* describes the way AS-external-LSAs are flooded */ #define LIBNET_OPT_MCBIT 0x04 /* whether or not IP multicast dgrams are fwdd */ #define LIBNET_OPT_NPBIT 0x08 /* describes handling of type-7 LSAs */ #define LIBNET_OPT_EABIT 0x10 /* rtr's willingness to send/recv EA-LSAs */ #define LIBNET_OPT_DCBIT 0x20 /* describes handling of demand circuits */ /* * MPLS header * Multi-Protocol Label Switching * Static header size: 4 bytes */ struct libnet_mpls_hdr { u_int32_t mpls_les; /* 20 bits label, 3 bits exp, 1 bit bos, ttl */ #define LIBNET_MPLS_BOS_ON 1 #define LIBNET_MPLS_BOS_OFF 0 }; /* * NTP header * Network Time Protocol * Static header size: 48 bytes */ struct libnet_ntp_hdr_l_fp /* int32_t floating point (64-bit) */ { u_int32_t integer; /* integer */ u_int32_t fraction; /* fraction */ }; struct libnet_ntp_hdr_s_fp /* int16_t floating point (32-bit) */ { u_int16_t integer; /* integer */ u_int16_t fraction; /* fraction */ }; struct libnet_ntp_hdr { u_int8_t ntp_li_vn_mode; /* leap indicator, version, mode */ #define LIBNET_NTP_LI_NW 0x0 /* no warning */ #define LIBNET_NTP_LI_AS 0x1 /* last minute has 61 seconds */ #define LIBNET_NTP_LI_DS 0x2 /* last minute has 59 seconds */ #define LIBNET_NTP_LI_AC 0x3 /* alarm condition */ #define LIBNET_NTP_VN_2 0x2 /* version 2 */ #define LIBNET_NTP_VN_3 0x3 /* version 3 */ #define LIBNET_NTP_VN_4 0x4 /* version 4 */ #define LIBNET_NTP_MODE_R 0x0 /* reserved */ #define LIBNET_NTP_MODE_A 0x1 /* symmetric active */ #define LIBNET_NTP_MODE_P 0x2 /* symmetric passive */ #define LIBNET_NTP_MODE_C 0x3 /* client */ #define LIBNET_NTP_MODE_S 0x4 /* server */ #define LIBNET_NTP_MODE_B 0x5 /* broadcast */ #define LIBNET_NTP_MODE_RC 0x6 /* reserved for NTP control message */ #define LIBNET_NTP_MODE_RP 0x7 /* reserved for private use */ u_int8_t ntp_stratum; /* stratum */ #define LIBNET_NTP_STRATUM_UNAVAIL 0x0 /* unspecified or unavailable */ #define LIBNET_NTP_STRATUM_PRIMARY 0x1 /* primary reference (radio clock) */ /* 2 - 15 is secondary */ /* 16 - 255 is reserved */ u_int8_t ntp_poll; /* poll interval (should be 4 - 12) */ u_int8_t ntp_precision; /* local clock precision */ struct libnet_ntp_hdr_s_fp ntp_delay; /* roundtrip delay */ struct libnet_ntp_hdr_s_fp ntp_dispersion; /* nominal error */ u_int32_t ntp_reference_id; /* reference source id */ #define LIBNET_NTP_REF_LOCAL 0x4c4f434c /* uncalibrated local clock */ #define LIBNET_NTP_REF_PPS 0x50505300 /* atomic / pulse-per-second clock */ #define LIBNET_NTP_REF_ACTS 0x41435453 /* NIST dialup modem */ #define LIBNET_NTP_REF_USNO 0x55534e4f /* USNO modem service */ #define LIBNET_NTP_REF_PTB 0x50544200 /* PTB (German) modem service */ #define LIBNET_NTP_REF_TDF 0x54444600 /* Allouis (French) radio */ #define LIBNET_NTP_REF_DCF 0x44434600 /* Mainflingen (German) radio */ #define LIBNET_NTP_REF_MSF 0x4d534600 /* Rugby (UK) radio */ #define LIBNET_NTP_REF_WWV 0x57575600 /* Ft Collins (US) radio */ #define LIBNET_NTP_REF_WWVB 0x57575642 /* Boulder (US) radio */ #define LIBNET_NTP_REF_WWVH 0x57575648 /* Kaui Hawaii (US) radio */ #define LIBNET_NTP_REF_CHU 0x43485500 /* Ottaha (Canada) radio */ #define LIBNET_NTP_REF_LORC 0x4c4f5243 /* LORAN-C radionavigation */ #define LIBNET_NTP_REF_OMEG 0x4f4d4547 /* OMEGA radionavigation */ #define LIBNET_NTP_REF_GPS 0x47505300 /* global positioning system */ #define LIBNET_NTP_REF_GOES 0x474f4553 /* geostationary orbit env satellite */ struct libnet_ntp_hdr_l_fp ntp_ref_ts; /* reference timestamp */ struct libnet_ntp_hdr_l_fp ntp_orig_ts; /* originate timestamp */ struct libnet_ntp_hdr_l_fp ntp_rec_ts; /* receive timestamp */ struct libnet_ntp_hdr_l_fp ntp_xmt_ts; /* transmit timestamp */ }; /* * OSPFv2 header * Open Shortest Path First * Static header size: 16 bytes */ struct libnet_ospf_hdr { u_int8_t ospf_v; /* version */ #define OSPFVERSION 2 u_int8_t ospf_type; /* type */ #define LIBNET_OSPF_UMD 0 /* UMd monitoring packet */ #define LIBNET_OSPF_HELLO 1 /* HELLO packet */ #define LIBNET_OSPF_DBD 2 /* dataBase description packet */ #define LIBNET_OSPF_LSR 3 /* link state request packet */ #define LIBNET_OSPF_LSU 4 /* link state Update Packet */ #define LIBNET_OSPF_LSA 5 /* link state acknowledgement packet */ u_int16_t ospf_len; /* length */ struct in_addr ospf_rtr_id; /* source router ID */ struct in_addr ospf_area_id;/* roam ID */ u_int16_t ospf_sum; /* checksum */ u_int16_t ospf_auth_type; /* authentication type */ #define LIBNET_OSPF_AUTH_NULL 0 /* null password */ #define LIBNET_OSPF_AUTH_SIMPLE 1 /* simple, plaintext, 8 int8_t password */ #define LIBNET_OSPF_AUTH_MD5 2 /* MD5 */ }; /* * OSPF authentication header * Open Shortest Path First * Static header size: 8 bytes */ struct libnet_auth_hdr { u_int16_t ospf_auth_null; /* NULL */ u_int8_t ospf_auth_keyid; /* authentication key ID */ u_int8_t ospf_auth_len; /* auth data length */ u_int ospf_auth_seq; /* cryptographic sequence number */ }; /* * OSPF hello header * Open Shortest Path First * Static header size: 28 bytes */ struct libnet_ospf_hello_hdr { struct in_addr hello_nmask; /* netmask associated with the interface */ u_int16_t hello_intrvl; /* num of seconds between routers last packet */ u_int8_t hello_opts; /* Options for HELLO packets (look above) */ u_int8_t hello_rtr_pri; /* router's priority (if 0, can't be backup) */ u_int hello_dead_intvl; /* # of secs a router is silent till deemed down */ struct in_addr hello_des_rtr; /* Designated router on the network */ struct in_addr hello_bkup_rtr; /* Backup router */ struct in_addr hello_nbr; /* neighbor router, memcpy more as needed */ }; /* * Database Description header. */ struct libnet_dbd_hdr { u_int16_t dbd_mtu_len; /* max length of IP dgram that this 'if' can use */ u_int8_t dbd_opts; /* DBD packet options (from above) */ u_int8_t dbd_type; /* type of exchange occurring */ #define LIBNET_DBD_IBI 0x01 /* init */ #define LIBNET_DBD_MBIT 0x02 /* more DBD packets are to come */ #define LIBNET_DBD_MSBIT 0x04 /* If 1, sender is the master in the exchange */ u_int dbd_seq; /* DBD sequence number */ }; /* * used for the LS type field in all LS* headers */ #define LIBNET_LS_TYPE_RTR 1 /* router-LSA */ #define LIBNET_LS_TYPE_NET 2 /* network-LSA */ #define LIBNET_LS_TYPE_IP 3 /* summary-LSA (IP Network) */ #define LIBNET_LS_TYPE_ASBR 4 /* summary-LSA (ASBR) */ #define LIBNET_LS_TYPE_ASEXT 5 /* AS-external-LSA */ /* * Link State Request header */ struct libnet_lsr_hdr { u_int lsr_type; /* type of LS being requested */ u_int lsr_lsid; /* link state ID */ struct in_addr lsr_adrtr; /* advertising router (memcpy more as needed) */ }; /* * Link State Update header */ struct libnet_lsu_hdr { u_int lsu_num; /* number of LSAs that will be broadcasted */ }; /* * Link State Acknowledgement header. */ struct libnet_lsa_hdr { u_int16_t lsa_age; /* time in seconds since the LSA was originated */ u_int8_t lsa_opts; /* look above for OPTS_* */ u_int8_t lsa_type; /* look below for LS_TYPE_* */ u_int lsa_id; /* link State ID */ struct in_addr lsa_adv; /* router ID of Advertising router */ u_int lsa_seq; /* LSA sequence number to detect old/bad ones */ u_int16_t lsa_sum; /* "Fletcher Checksum" of all fields minus age */ u_int16_t lsa_len; /* length in bytes including the 20 byte header */ }; /* * Router LSA data format * * Other stuff for TOS can be added for backward compatability, for this * version, only OSPFv2 is being FULLY supported. */ struct libnet_rtr_lsa_hdr { u_int16_t rtr_flags; /* set to help describe packet */ #define LIBNET_RTR_FLAGS_W 0x0100 /* W bit */ #define LIBNET_RTR_FLAGS_E 0x0200 /* E bit */ #define LIBNET_RTR_FLAGS_B 0x0400 /* B bit */ u_int16_t rtr_num; /* number of links within that packet */ u_int rtr_link_id; /* describes link_data (look below) */ #define LIBNET_LINK_ID_NBR_ID 1 /* Neighbors router ID, also can be 4 */ #define LIBNET_LINK_ID_IP_DES 2 /* IP address of designated router */ #define LIBNET_LINK_ID_SUB 3 /* IP subnet number */ u_int rtr_link_data; /* Depending on link_id, info is here */ u_int8_t rtr_type; /* Description of router link */ #define LIBNET_RTR_TYPE_PTP 1 /* Point-To-Point */ #define LIBNET_RTR_TYPE_TRANS 2 /* Connection to a "transit network" */ #define LIBNET_RTR_TYPE_STUB 3 /* Connectin to a "stub network" */ #define RTR_TYPE_VRTL 4 /* connects to a "virtual link" */ u_int8_t rtr_tos_num; /* number of different TOS metrics for this link */ u_int16_t rtr_metric; /* the "cost" of using this link */ }; /* * Network LSA data format. */ struct libnet_net_lsa_hdr { struct in_addr net_nmask; /* Netmask for that network */ u_int net_rtr_id; /* ID of router attached to that network */ }; /* * Summary LSA data format. */ struct libnet_sum_lsa_hdr { struct in_addr sum_nmask; /* Netmask of destination IP address */ u_int sum_metric; /* Same as in rtr_lsa (&0xfff to use last 24bit */ u_int sum_tos_metric; /* first 8bits are TOS, 24bits are TOS Metric */ }; /* * AS External LSA data format. * & 0xfff logic operator for as_metric to get last 24bits. */ struct libnet_as_lsa_hdr { struct in_addr as_nmask; /* Netmask for advertised destination */ u_int as_metric; /* May have to set E bit in first 8bits */ #define LIBNET_AS_E_BIT_ON 0x80000000 /* as_metric */ struct in_addr as_fwd_addr; /* Forwarding address */ u_int as_rte_tag; /* External route tag */ }; /* * Base RIP header * Routing Information Protocol * Base header size: 24 bytes */ struct libnet_rip_hdr { u_int8_t rip_cmd; /* RIP command */ #define RIPCMD_REQUEST 1 /* want info */ #define RIPCMD_RESPONSE 2 /* responding to request */ #define RIPCMD_TRACEON 3 /* turn tracing on */ #define RIPCMD_TRACEOFF 4 /* turn it off */ #define RIPCMD_POLL 5 /* like request, but anyone answers */ #define RIPCMD_POLLENTRY 6 /* like poll, but for entire entry */ #define RIPCMD_MAX 7 /* ? command */ u_int8_t rip_ver; /* RIP version */ #define RIPVER_0 0 #define RIPVER_1 1 #define RIPVER_2 2 u_int16_t rip_rd; /* Zero (v1) or Routing Domain (v2) */ u_int16_t rip_af; /* Address family */ u_int16_t rip_rt; /* Zero (v1) or Route Tag (v2) */ u_int32_t rip_addr; /* IP address */ u_int32_t rip_mask; /* Zero (v1) or Subnet Mask (v2) */ u_int32_t rip_next_hop; /* Zero (v1) or Next hop IP address (v2) */ u_int32_t rip_metric; /* Metric */ }; /* * RPC headers * Remote Procedure Call */ #define LIBNET_RPC_CALL 0 #define LIBNET_RPC_REPLY 1 #define LIBNET_RPC_VERS 2 #define LIBNET_RPC_LAST_FRAG 0x80000000 /* * Portmap defines */ #define LIBNET_PMAP_PROGRAM 100000 #define LIBNET_PMAP_PROC_NULL 0 #define LIBNET_PMAP_PROC_SET 1 #define LIBNET_PMAP_PROC_UNSET 2 #define LIBNET_PMAP_PROC_GETADDR 3 #define LIBNET_PMAP_PROC_DUMP 4 #define LIBNET_PMAP_PROC_CALLIT 5 #define LIBNET_PMAP_PROC_BCAST 5 /* Not a typo */ #define LIBNET_PMAP_PROC_GETTIME 6 #define LIBNET_PMAP_PROC_UADDR2TADDR 7 #define LIBNET_PMAP_PROC_TADDR2UADDR 8 #define LIBNET_PMAP_PROC_GETVERSADDR 9 #define LIBNET_PMAP_PROC_INDIRECT 10 #define LIBNET_PMAP_PROC_GETADDRLIST 11 #define LIBNET_PMAP_PROC_GETSTAT 12 /* There will be more to add... */ struct libnet_rpc_opaque_auth { u_int32_t rpc_auth_flavor; u_int32_t rpc_auth_length; // u_int8_t *rpc_auth_data; }; struct libnet_rpc_call { u_int32_t rpc_rpcvers; /* RPC version - must be 2 */ u_int32_t rpc_prognum; /* Program Number */ u_int32_t rpc_vers; /* Program Version */ u_int32_t rpc_procedure; /* RPC procedure */ struct libnet_rpc_opaque_auth rpc_credentials; struct libnet_rpc_opaque_auth rpc_verifier; }; struct libnet_rpc_call_hdr { u_int32_t rpc_xid; /* xid (transaction identifier) */ u_int32_t rpc_type; struct libnet_rpc_call rpc_call; }; struct libnet_rpc_call_tcp_hdr { u_int32_t rpc_record_marking; /* used with byte stream protocols */ struct libnet_rpc_call_hdr rpc_common; }; /* * STP configuration header * Spanning Tree Protocol * Static header size: 35 bytes */ struct libnet_stp_conf_hdr { u_int16_t stp_id; /* protocol id */ u_int8_t stp_version; /* protocol version */ u_int8_t stp_bpdu_type; /* bridge protocol data unit type */ u_int8_t stp_flags; /* control flags */ u_int8_t stp_rootid[8]; /* root id */ u_int32_t stp_rootpc; /* root path cost */ u_int8_t stp_bridgeid[8]; /* bridge id */ u_int16_t stp_portid; /* port id */ u_int16_t stp_mage; /* message age */ u_int16_t stp_maxage; /* max age */ u_int16_t stp_hellot; /* hello time */ u_int16_t stp_fdelay; /* forward delay */ }; /* * STP topology change notification header * Spanning Tree Protocol * Static header size: 4 bytes */ struct libnet_stp_tcn_hdr { u_int16_t stp_id; /* protocol id */ u_int8_t stp_version; /* protocol version */ u_int8_t stp_bpdu_type; /* bridge protocol data unit type */ }; /* * TCP header * Transmission Control Protocol * Static header size: 20 bytes */ struct libnet_tcp_hdr { u_int16_t th_sport; /* source port */ u_int16_t th_dport; /* destination port */ u_int32_t th_seq; /* sequence number */ u_int32_t th_ack; /* acknowledgement number */ #if (LIBNET_LIL_ENDIAN) u_int8_t th_x2:4, /* (unused) */ th_off:4; /* data offset */ #endif #if (LIBNET_BIG_ENDIAN) u_int8_t th_off:4, /* data offset */ th_x2:4; /* (unused) */ #endif u_int8_t th_flags; /* control flags */ #ifndef TH_FIN #define TH_FIN 0x01 /* finished send data */ #endif #ifndef TH_SYN #define TH_SYN 0x02 /* synchronize sequence numbers */ #endif #ifndef TH_RST #define TH_RST 0x04 /* reset the connection */ #endif #ifndef TH_PUSH #define TH_PUSH 0x08 /* push data to the app layer */ #endif #ifndef TH_ACK #define TH_ACK 0x10 /* acknowledge */ #endif #ifndef TH_URG #define TH_URG 0x20 /* urgent! */ #endif #ifndef TH_ECE #define TH_ECE 0x40 #endif #ifndef TH_CWR #define TH_CWR 0x80 #endif u_int16_t th_win; /* window */ u_int16_t th_sum; /* checksum */ u_int16_t th_urp; /* urgent pointer */ }; /* * Token Ring Header */ struct libnet_token_ring_hdr { u_int8_t token_ring_access_control; #define LIBNET_TOKEN_RING_FRAME 0x10 u_int8_t token_ring_frame_control; #define LIBNET_TOKEN_RING_LLC_FRAME 0x40 u_int8_t token_ring_dhost[TOKEN_RING_ADDR_LEN]; u_int8_t token_ring_shost[TOKEN_RING_ADDR_LEN]; u_int8_t token_ring_llc_dsap; u_int8_t token_ring_llc_ssap; u_int8_t token_ring_llc_control_field; u_int8_t token_ring_llc_org_code[LIBNET_ORG_CODE_SIZE]; u_int16_t token_ring_type; #define TOKEN_RING_TYPE_IP 0x0800 /* IP protocol */ #define TOKEN_RING_TYPE_ARP 0x0806 /* addr. resolution protocol */ #define TOKEN_RING_TYPE_REVARP 0x8035 /* reverse addr. resolution protocol */ }; struct libnet_token_ring_addr { u_int8_t token_ring_addr_octet[6]; /* Token Ring address */ }; /* * UDP header * User Data Protocol * Static header size: 8 bytes */ struct libnet_udp_hdr { u_int16_t uh_sport; /* soure port */ u_int16_t uh_dport; /* destination port */ u_int16_t uh_ulen; /* length */ u_int16_t uh_sum; /* checksum */ }; /* * Sebek header * Static header size: 48 bytes */ struct libnet_sebek_hdr { u_int32_t magic; /* identify packets that should be hidden */ u_int16_t version; /* protocol version, currently 1 */ #define SEBEK_PROTO_VERSION 1 u_int16_t type; /* type of record (read data is type 0, write data is type 1) */ #define SEBEK_TYPE_READ 0 /* Currently, only read is supported */ #define SEBEK_TYPE_WRITE 1 u_int32_t counter; /* PDU counter used to identify when packet are lost */ u_int32_t time_sec; /* seconds since EPOCH according to the honeypot */ u_int32_t time_usec; /* residual microseconds */ u_int32_t pid; /* PID */ u_int32_t uid; /* UID */ u_int32_t fd; /* FD */ #define SEBEK_CMD_LENGTH 12 u_int8_t cmd[SEBEK_CMD_LENGTH]; /* 12 first characters of the command */ u_int32_t length; /* length in bytes of the PDU's body */ }; /* * VRRP header * Virtual Router Redundancy Protocol * Static header size: 8 bytes */ #ifndef IPPROTO_VRRP #define IPPROTO_VRRP 112 /* not everyone's got this */ #endif struct libnet_vrrp_hdr { #if (LIBNET_LIL_ENDIAN) u_int8_t vrrp_v:4, /* protocol version */ vrrp_t:4; /* packet type */ #endif #if (LIBNET_BIG_ENDIAN) u_int8_t vrrp_t:4, /* packet type */ vrrp_v:4; /* protocol version */ #endif #define LIBNET_VRRP_VERSION_01 0x1 #define LIBNET_VRRP_VERSION_02 0x2 #define LIBNET_VRRP_TYPE_ADVERT 0x1 u_int8_t vrrp_vrouter_id; /* virtual router id */ u_int8_t vrrp_priority; /* priority */ u_int8_t vrrp_ip_count; /* number of IP addresses */ u_int8_t vrrp_auth_type; /* authorization type */ #define LIBNET_VRRP_AUTH_NONE 0x1 #define LIBNET_VRRP_AUTH_PASSWD 0x2 #define LIBNET_VRRP_AUTH_IPAH 0x3 u_int8_t vrrp_advert_int; /* advertisement interval */ u_int16_t vrrp_sum; /* checksum */ /* additional addresses */ /* authentication info */ }; #endif /* __LIBNET_HEADERS_H */ /* EOF */