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- /*
- * $Id: libnet-headers.h,v 1.1.1.1 2000/05/25 00:28:49 route Exp $
- *
- * libnet-headers.h - Network routine library headers header file
- *
- * Copyright (c) 1998 - 2001 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
-
- /*
- * Standard (IPv4) header sizes in bytes.
- */
-
- #define LIBNET_ARP_H 0x1c /* ARP header: 28 bytes */
- #define LIBNET_DNS_H 0xc /* DNS header base: 12 bytes */
- #define LIBNET_ETH_H 0xe /* Etherner header: 14 bytes */
- #define LIBNET_ICMP_H 0x4 /* ICMP header base: 4 bytes */
- #define LIBNET_ICMP_ECHO_H 0x8 /* ICMP_ECHO header: 8 bytes */
- #define LIBNET_ICMP_MASK_H 0xc /* ICMP_MASK header: 12 bytes */
- #define LIBNET_ICMP_UNREACH_H 0x8 /* ICMP_UNREACH header: 8 bytes */
- #define LIBNET_ICMP_TIMXCEED_H 0x8 /* ICMP_TIMXCEED header: 8 bytes */
- #define LIBNET_ICMP_REDIRECT_H 0x8 /* ICMP_REDIRECT header: 8 bytes */
- #define LIBNET_ICMP_TS_H 0x14 /* ICMP_TIMESTAMP headr:20 bytes */
- #define LIBNET_IGMP_H 0x8 /* IGMP header: 8 bytes */
- #define LIBNET_IP_H 0x14 /* IP header: 20 bytes */
- /* See libnet-ospf.h for OSPF related header sizes */
- #define LIBNET_RIP_H 0x18 /* RIP header base: 24 bytes */
- #define LIBNET_TCP_H 0x14 /* TCP header: 20 bytes */
- #define LIBNET_UDP_H 0x8 /* UDP header: 8 bytes */
- #define LIBNET_VRRP_H 0x8 /* VRRP header: 8 bytes */
-
- /*
- * Concession to legacy naming scheme.
- */
- #define ARP_H LIBNET_ARP_H
- #define DNS_H LIBNET_DNS_H
- #define ETH_H LIBNET_ETH_H
- #define ICMP_H LIBNET_ICMP_H
- #define ICMP_ECHO_H LIBNET_ICMP_ECHO_H
- #define ICMP_MASK_H LIBNET_ICMP_MASK_H
- #define ICMP_UNREACH_H LIBNET_ICMP_UNREACH_H
- #define ICMP_TIMXCEED_H LIBNET_ICMP_TIMXCEED_H
- #define ICMP_REDIRECT_H LIBNET_ICMP_REDIRECT_H
- #define ICMP_TS_H LIBNET_ICMP_TS_H
- #define IGMP_H LIBNET_IGMP_H
- #define IP_H LIBNET_IP_H
- #define RIP_H LIBNET_RIP_H
- #define TCP_H LIBNET_TCP_H
- #define UDP_H LIBNET_UDP_H
-
- /*
- * IPv4 packet header prototype.
- */
- struct libnet_ip_hdr
- {
- #if (LIBNET_LIL_ENDIAN)
- u_char ip_hl:4, /* header length */
- ip_v:4; /* version */
- #endif
- #if (LIBNET_BIG_ENDIAN)
- u_char ip_v:4, /* version */
- ip_hl:4; /* header length */
- #endif
- u_char ip_tos; /* type of service */
- u_short ip_len; /* total length */
- u_short ip_id; /* identification */
- u_short 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_char ip_ttl; /* time to live */
- u_char ip_p; /* protocol */
- u_short ip_sum; /* checksum */
- struct in_addr ip_src, ip_dst; /* source and dest address */
- };
-
- /*
- * TCP packet header prototype.
- */
- struct libnet_tcp_hdr
- {
- u_short th_sport; /* source port */
- u_short th_dport; /* destination port */
- u_long th_seq; /* sequence number */
- u_long th_ack; /* acknowledgement number */
- #if (LIBNET_LIL_ENDIAN)
- u_char th_x2:4, /* (unused) */
- th_off:4; /* data offset */
- #endif
- #if (LIBNET_BIG_ENDIAN)
- u_char th_off:4, /* data offset */
- th_x2:4; /* (unused) */
- #endif
- u_char th_flags; /* control flags */
- #ifndef TH_FIN
- #define TH_FIN 0x01
- #endif
- #ifndef TH_SYN
- #define TH_SYN 0x02
- #endif
- #ifndef TH_RST
- #define TH_RST 0x04
- #endif
- #ifndef TH_PUSH
- #define TH_PUSH 0x08
- #endif
- #ifndef TH_ACK
- #define TH_ACK 0x10
- #endif
- #ifndef TH_URG
- #define TH_URG 0x20
- #endif
- u_short th_win; /* window */
- u_short th_sum; /* checksum */
- u_short th_urp; /* urgent pointer */
- };
-
-
- /*
- * UDP packet header prototype.
- */
- struct libnet_udp_hdr
- {
- u_short uh_sport; /* soure port */
- u_short uh_dport; /* destination port */
- u_short uh_ulen; /* length */
- u_short uh_sum; /* checksum */
- };
-
-
- /*
- * ICMP packet header prototype.
- */
- struct libnet_icmp_hdr
- {
- u_char icmp_type;
- /*
- * ICMP types.
- */
- #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_char icmp_code;
- /*
- * ICMP codes.
- */
- #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_short icmp_sum;
-
- union
- {
- struct
- {
- u_short id;
- u_short seq;
- }echo;
-
- #undef icmp_id
- #undef icmp_seq
- #define icmp_id hun.echo.id
- #define icmp_seq hun.echo.seq
-
- u_long gateway;
- struct
- {
- u_short pad;
- u_short mtu;
- }frag;
- }hun;
- union
- {
- struct
- {
- n_time its_otime;
- n_time its_rtime;
- n_time its_ttime;
- }ts;
- struct
- {
- struct ip idi_ip;
- /* options and then 64 bits of data */
- }ip;
- u_long mask;
- char 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.
- */
- struct libnet_igmp_hdr
- {
- u_char 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_char igmp_code;
- u_short igmp_sum;
- struct in_addr igmp_group;
- };
-
-
- /*
- * Ethernet packet header prototype. Too many O/S's define this differently.
- * Easy enough to solve that and define it here.
- */
- struct libnet_ethernet_hdr
- {
- #ifndef ETHER_ADDR_LEN
- #define ETHER_ADDR_LEN 6
- #endif
- u_char ether_dhost[ETHER_ADDR_LEN]; /* destination ethernet address */
- u_char ether_shost[ETHER_ADDR_LEN]; /* source ethernet address */
- u_short ether_type; /* packet type ID */
- };
-
- #define ETHERTYPE_PUP 0x0200 /* PUP protocol */
- #define ETHERTYPE_IP 0x0800 /* IP protocol */
- #define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */
- #define ETHERTYPE_REVARP 0x8035 /* reverse Addr. resolution protocol */
- #define ETHERTYPE_VLAN 0x8100 /* IEEE 802.1Q VLAN tagging */
- #define ETHERTYPE_LOOPBACK 0x9000 /* used to test interfaces */
-
- #if (!__GLIBC__)
- struct ether_addr
- {
- u_char ether_addr_octet[6];
- };
- #endif
-
- /*
- * ARP packet header prototype. Too many O/S's define this differently.
- * Easy enough to solve that and define it here.
- */
- struct libnet_arp_hdr
- {
- u_short ar_hrd; /* format of hardware address */
- #define ARPHRD_ETHER 1 /* ethernet hardware format */
- u_short ar_pro; /* format of protocol address */
- u_char ar_hln; /* length of hardware address */
- u_char ar_pln; /* length of protocol addres */
- u_short 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 */
-
- /*
- * These should implementation defined but I've hardcoded eth/IP.
- */
- u_char ar_sha[6]; /* sender hardware address */
- u_char ar_spa[4]; /* sender protocol address */
- u_char ar_tha[6]; /* target hardware address */
- u_char ar_tpa[4]; /* target protocol address */
- };
-
-
- /*
- * Base DNS header.
- */
- struct libnet_dns_hdr
- {
- u_short id; /* DNS packet ID */
- u_short flags; /* DNS flags */
- u_short num_q; /* Number of questions */
- u_short num_answ_rr; /* Number of answer resource records */
- u_short num_auth_rr; /* Number of authority resource records */
- u_short num_addi_rr; /* Number of additional resource records */
- };
-
-
- /*
- * Base RIP (routing information protocol) header.
- */
- struct libnet_rip_hdr
- {
- u_char 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
- u_char ver; /* RIP version */
- #define RIPVER_0 0
- #define RIPVER_1 1
- #define RIPVER_2 2
- u_short rd; /* Zero (v1) or Routing Domain (v2) */
- u_short af; /* Address family */
- u_short rt; /* Zero (v1) or Route Tag (v2) */
- u_long addr; /* IP address */
- u_long mask; /* Zero (v1) or Subnet Mask (v2) */
- u_long next_hop; /* Zero (v1) or Next hop IP address (v2) */
- u_long metric; /* Metric */
- };
-
- /*
- * VRRP packet header prototype.
- */
- #ifndef IPPROTO_VRRP
- #define IPPROTO_VRRP 112
- #endif
- struct libnet_vrrp_hdr
- {
- #if (LIBNET_LIL_ENDIAN)
- u_char vrrp_v:4, /* protocol version */
- vrrp_t:4; /* packet type */
- #endif
- #if (LIBNET_BIG_ENDIAN)
- u_char vrrp_t:4, /* packet type */
- vrrp_v:4; /* protocol version */
- #endif
- #define LIBNET_VRRP_TYPE_ADVERT 0x1
- u_char vrrp_vrouter_id; /* virtual router id */
- u_char vrrp_priority; /* priority */
- u_char vrrp_ip_count; /* number of IP addresses */
- u_char vrrp_auth_type; /* authorization type */
- #define LIBNET_VRRP_AUTH_NONE 0x1
- #define LIBNET_VRRP_AUTH_PASSWD 0x2
- #define LIBNET_VRRP_AUTH_IPAH 0x3
- u_char vrrp_advert_int; /* advertisement interval */
- u_short vrrp_sum; /* checksum */
- };
-
- #if 0
- struct libnet_snmp_hdr
- {
- /* ASN.1 BER support first */
- };
- #endif
-
-
- /*
- * TCP options structure.
- */
- struct tcpoption
- {
- u_char tcpopt_list[MAX_IPOPTLEN];
- };
-
-
- #if (__linux__)
- /*
- * Linux has a radically different IP options structure from BSD.
- */
- struct ipoption
- {
- struct in_addr ipopt_dst; /* first-hop dst if source routed */
- char ipopt_list[MAX_IPOPTLEN]; /* options proper */
- };
- #endif
-
- #endif /* __LIBNET_HEADERS_H */
-
- /* EOF */
-