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libnet-headers.h

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00001 /*
00002  *  $Id: libnet-headers.h,v 1.11 2004/01/16 22:45:43 mike Exp $
00003  *
00004  *  libnet-headers.h - Network routine library headers header file
00005  *
00006  *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
00007  *  All rights reserved.
00008  *
00009  * Redistribution and use in source and binary forms, with or without
00010  * modification, are permitted provided that the following conditions
00011  * are met:
00012  * 1. Redistributions of source code must retain the above copyright
00013  *    notice, this list of conditions and the following disclaimer.
00014  * 2. Redistributions in binary form must reproduce the above copyright
00015  *    notice, this list of conditions and the following disclaimer in the
00016  *    documentation and/or other materials provided with the distribution.
00017  *
00018  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
00019  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00020  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00021  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
00022  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00023  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00024  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00025  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00026  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00027  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00028  * SUCH DAMAGE.
00029  *
00030  */
00031 
00032 #ifndef __LIBNET_HEADERS_H
00033 #define __LIBNET_HEADERS_H
00034 
00042 #define LIBNET_802_1Q_H         0x12    
00043 #define LIBNET_802_1X_H         0x04    
00044 #define LIBNET_802_2_H          0x03    
00045 #define LIBNET_802_2SNAP_H      0x08    
00046 #define LIBNET_802_3_H          0x0e    
00047 #define LIBNET_ARP_H            0x08    
00048 #define LIBNET_ARP_ETH_IP_H     0x1c    
00049 #define LIBNET_BGP4_HEADER_H    0x13    
00050 #define LIBNET_BGP4_OPEN_H      0x0a    
00051 #define LIBNET_BGP4_UPDATE_H    0x04    
00052 #define LIBNET_BGP4_NOTIFICATION_H 0x02 
00053 #define LIBNET_CDP_H            0x08    
00054 #define LIBNET_DHCPV4_H         0xf0    
00055 #define LIBNET_UDP_DNSV4_H      0x0c    
00056 #define LIBNET_TCP_DNSV4_H      0x0e    
00057 #define LIBNET_ETH_H            0x0e    
00058 #define LIBNET_FDDI_H           0x15    
00059 #define LIBNET_ICMPV4_H         0x04    
00060 #define LIBNET_ICMPV4_ECHO_H    0x08    
00061 #define LIBNET_ICMPV4_MASK_H    0x0c    
00062 #define LIBNET_ICMPV4_UNREACH_H  0x08   
00063 #define LIBNET_ICMPV4_TIMXCEED_H 0x08   
00064 #define LIBNET_ICMPV4_REDIRECT_H 0x08   
00065 #define LIBNET_ICMPV4_TS_H      0x14    
00066 #define LIBNET_ICMPV6_H         0x08    
00067 #define LIBNET_IGMP_H           0x08    
00068 #define LIBNET_IPV4_H           0x14    
00069 #define LIBNET_IPV6_H           0x28    
00070 #define LIBNET_IPV6_FRAG_H      0x08    
00071 #define LIBNET_IPV6_ROUTING_H   0x04    
00072 #define LIBNET_IPV6_DESTOPTS_H  0x02    
00073 #define LIBNET_IPV6_HBHOPTS_H   0x02    
00074 #define LIBNET_IPSEC_ESP_HDR_H  0x0c    
00075 #define LIBNET_IPSEC_ESP_FTR_H  0x02    
00076 #define LIBNET_IPSEC_AH_H       0x10    
00077 #define LIBNET_ISL_H            0x1a    
00078 #define LIBNET_GRE_H            0x04    
00079 #define LIBNET_GRE_SRE_H        0x04    
00080 #define LIBNET_MPLS_H           0x04    
00081 #define LIBNET_OSPF_H           0x10    
00082 #define LIBNET_OSPF_HELLO_H     0x18    
00083 #define LIBNET_OSPF_DBD_H       0x08    
00084 #define LIBNET_OSPF_LSR_H       0x0c    
00085 #define LIBNET_OSPF_LSU_H       0x04    
00086 #define LIBNET_OSPF_LSA_H       0x14    
00087 #define LIBNET_OSPF_AUTH_H      0x08    
00088 #define LIBNET_OSPF_CKSUM       0x10    
00089 #define LIBNET_OSPF_LS_RTR_H    0x10    
00090 #define LIBNET_OSPF_LS_NET_H    0x08    
00091 #define LIBNET_OSPF_LS_SUM_H    0x0c    
00092 #define LIBNET_OSPF_LS_AS_EXT_H 0x10    
00093 #define LIBNET_NTP_H            0x30    
00094 #define LIBNET_RIP_H            0x18    
00095 #define LIBNET_RPC_CALL_H       0x28    
00098 #define LIBNET_RPC_CALL_TCP_H   0x2c    
00101 #define LIBNET_STP_CONF_H       0x23    
00102 #define LIBNET_STP_TCN_H        0x04    
00103 #define LIBNET_TOKEN_RING_H     0x16    
00104 #define LIBNET_TCP_H            0x14    
00105 #define LIBNET_UDP_H            0x08    
00106 #define LIBNET_VRRP_H           0x08    
00112 struct libnet_802_1q_hdr
00113 {
00114     u_int8_t vlan_dhost[ETHER_ADDR_LEN];  
00115     u_int8_t vlan_shost[ETHER_ADDR_LEN];  
00116     u_int16_t vlan_tpi;                   
00117     u_int16_t vlan_priority_c_vid;        
00118 #define LIBNET_802_1Q_PRIMASK   0x0007    
00119 #define LIBNET_802_1Q_CFIMASK   0x0001    
00120 #define LIBNET_802_1Q_VIDMASK   0x0fff    
00121     u_int16_t vlan_len;                   
00122 };  
00123 
00128 struct libnet_802_1x_hdr
00129 {
00130     u_int8_t dot1x_version;               
00131     u_int8_t dot1x_type;                  
00132 #define LIBNET_802_1X_PACKET    0x00      
00133 #define LIBNET_802_1X_START     0x01      
00134 #define LIBNET_802_1X_LOGOFF    0x02      
00135 #define LIBNET_802_1X_KEY       0x03      
00136 #define LIBNET_802_1X_ENCASFAL  0x04      
00137     u_int16_t dot1x_length;               
00138 };  
00139 
00140 /*
00141  *  IEEE 802.2 LLC header
00142  *  Link Layer Control
00143  *  static header size: 3 bytes
00144  */
00145 struct libnet_802_2_hdr
00146 {
00147     u_int8_t llc_dsap;            /* destination service access point */
00148     u_int8_t llc_ssap;            /* source service access point */
00149 #define LIBNET_SAP_STP          0x42
00150 #define LIBNET_SAP_SNAP         0xaa
00151     u_int8_t llc_control;         /* control field */
00152 };
00153 
00154 
00155 /*
00156  *  IEEE 802.2 LLC/SNAP header
00157  *  SubNetwork Attachment Point
00158  *  static header size: 8 bytes
00159  */
00160 struct libnet_802_2snap_hdr
00161 {
00162     u_int8_t snap_dsap;           /* destination service access point */
00163     u_int8_t snap_ssap;           /* destination service access point */
00164     u_int8_t snap_control;        /* control field */
00165     u_int8_t snap_oui[3];         /* OUI */
00166     u_int16_t snap_type;          /* type */
00167 };
00168 
00169 
00170 /*
00171  *  802.3 header
00172  *  IEEE Ethernet
00173  *  Static header size: 14 bytes
00174  */
00175 struct libnet_802_3_hdr
00176 {
00177     u_int8_t  _802_3_dhost[ETHER_ADDR_LEN];/* destination ethernet address */
00178     u_int8_t  _802_3_shost[ETHER_ADDR_LEN];/* source ethernet address */
00179     u_int16_t _802_3_len;                 /* packet type ID */
00180 };
00181 
00182 
00183 /* 
00184  *  ARP header
00185  *  Address Resolution Protocol
00186  *  Base header size: 8 bytes
00187  */
00188 struct libnet_arp_hdr
00189 {
00190     u_int16_t ar_hrd;         /* format of hardware address */
00191 #define ARPHRD_NETROM   0   /* from KA9Q: NET/ROM pseudo */
00192 #define ARPHRD_ETHER    1   /* Ethernet 10Mbps */
00193 #define ARPHRD_EETHER   2   /* Experimental Ethernet */
00194 #define ARPHRD_AX25     3   /* AX.25 Level 2 */
00195 #define ARPHRD_PRONET   4   /* PROnet token ring */
00196 #define ARPHRD_CHAOS    5   /* Chaosnet */
00197 #define ARPHRD_IEEE802  6   /* IEEE 802.2 Ethernet/TR/TB */
00198 #define ARPHRD_ARCNET   7   /* ARCnet */
00199 #define ARPHRD_APPLETLK 8   /* APPLEtalk */
00200 #define ARPHRD_LANSTAR  9   /* Lanstar */
00201 #define ARPHRD_DLCI     15  /* Frame Relay DLCI */
00202 #define ARPHRD_ATM      19  /* ATM */
00203 #define ARPHRD_METRICOM 23  /* Metricom STRIP (new IANA id) */
00204 #define ARPHRD_IPSEC    31  /* IPsec tunnel */
00205     u_int16_t ar_pro;         /* format of protocol address */
00206     u_int8_t  ar_hln;         /* length of hardware address */
00207     u_int8_t  ar_pln;         /* length of protocol addres */
00208     u_int16_t ar_op;          /* operation type */
00209 #define ARPOP_REQUEST    1  /* req to resolve address */
00210 #define ARPOP_REPLY      2  /* resp to previous request */
00211 #define ARPOP_REVREQUEST 3  /* req protocol address given hardware */
00212 #define ARPOP_REVREPLY   4  /* resp giving protocol address */
00213 #define ARPOP_INVREQUEST 8  /* req to identify peer */
00214 #define ARPOP_INVREPLY   9  /* resp identifying peer */
00215     /* address information allocated dynamically */
00216 };
00217 
00218 /*
00219  * BGP4 header
00220  * Border Gateway Protocol 4
00221  * Base header size : 19 bytes
00222  */
00223 struct libnet_bgp4_header_hdr
00224 {
00225 #define LIBNET_BGP4_MARKER_SIZE   16
00226     u_int8_t marker[LIBNET_BGP4_MARKER_SIZE];
00227     u_int16_t len;
00228     u_int8_t type;
00229 #define LIBNET_BGP4_OPEN          1
00230 #define LIBNET_BGP4_UPDATE        2
00231 #define LIBNET_BGP4_NOTIFICATION  3
00232 #define LIBNET_BGP4_KEEPALIVE     4
00233 };
00234 
00235 /*
00236  * BGP4 open header
00237  * Border Gateway Protocol 4
00238  * Base header size : 10 bytes
00239  */
00240 struct libnet_bgp4_open_hdr
00241 {
00242     u_int8_t version;
00243     u_int16_t src_as;
00244     u_int16_t hold_time;
00245     u_int32_t bgp_id;
00246     u_int8_t opt_len;
00247 };
00248 
00249 /*
00250  * BGP4 notification message
00251  *
00252  * Border Gateway Protocol 4
00253  * Base header size : 2 bytes
00254  *
00255  * Use payload if you need data
00256  */
00257 struct libnet_bgp4_notification_hdr
00258 {
00259 #define LIBNET_BGP4_MESSAGE_HEADER_ERROR  1
00260 #define LIBNET_BGP4_OPEN_MESSAGE_ERROR    2
00261 #define LIBNET_BGP4_UPDATE_MESSAGE_ERROR  3
00262 #define LIBNET_BGP4_HOLD_TIMER_EXPIRED    4
00263 #define LIBNET_BGP4_FINITE_STATE__ERROR   5
00264 #define LIBNET_BGP4_CEASE                 6
00265     u_int8_t err_code;
00266 
00267 /* Message Header Error subcodes */
00268 #define LIBNET_BGP4_CONNECTION_NOT_SYNCHRONIZED    1
00269 #define LIBNET_BGP4_BAD_MESSAGE_LENGTH             2
00270 #define LIBNET_BGP4_BAD_MESSAGE_TYPE               3
00271 /* OPEN Message Error subcodes */
00272 #define LIBNET_BGP4_UNSUPPORTED_VERSION_NUMBER     1
00273 #define LIBNET_BGP4_BAD_PEER_AS                    2
00274 #define LIBNET_BGP4_BAD_BGP_IDENTIFIER             3
00275 #define LIBNET_BGP4_UNSUPPORTED_OPTIONAL_PARAMETER 4
00276 #define LIBNET_BGP4_AUTHENTICATION_FAILURE         5
00277 #define LIBNET_BGP4_UNACCEPTABLE_HOLD_TIME         6
00278 /* UPDATE Message Error subcodes */
00279 #define LIBNET_BGP4_MALFORMED_ATTRIBUTE_LIST
00280 #define LIBNET_BGP4_UNRECOGNIZED_WELL_KNOWN_ATTRIBUTE
00281 #define LIBNET_BGP4_MISSING_WELL_KNOWN_ATTRIBUTE
00282 #define LIBNET_BGP4_ATTRIBUTE_FLAGS_ERROR
00283 #define LIBNET_BGP4_ATTRIBUTE_LENGTH_ERROR
00284 #define LIBNET_BGP4_INVALID_ORIGIN_ATTRIBUTE
00285 #define LIBNET_BGP4_AS_ROUTING_LOOP
00286 #define LIBNET_BGP4_INVALID_NEXT_HOP_ATTRIBUTE
00287 #define LIBNET_BGP4_OPTIONAL_ATTRIBUTE_ERROR
00288 #define LIBNET_BGP4_INVALID_NETWORK_FIELD
00289 #define LIBNET_BGP4_MALFORMED_AS_PATH
00290     u_int8_t err_subcode;
00291 };
00292 
00293 
00294 
00295 /*
00296  *  CDP header
00297  *  Cisco Discovery Protocol
00298  *  Base header size: 8 bytes
00299  */
00300 
00301 /*
00302  *  For checksum stuff -- IANA says 135-254 is "unassigned" as of 12.2001.
00303  *  Let's hope this one stays that way for a while!
00304  */
00305 #define LIBNET_PROTO_CDP    200
00306 struct libnet_cdp_hdr
00307 {
00308     u_int8_t cdp_version;     /* version (should always be 0x01) */
00309     u_int8_t cdp_ttl;         /* time reciever should hold info in this packet */
00310     u_int16_t cdp_sum;        /* checksum */
00311     u_int16_t cdp_type;       /* type */
00312 #define LIBNET_CDP_DEVID    0x1 /* device id */
00313 #define LIBNET_CDP_ADDRESS  0x2 /* address */
00314 #define LIBNET_CDP_PORTID   0x3 /* port id */
00315 #define LIBNET_CDP_CAPABIL  0x4 /* capabilities */
00316 #define LIBNET_CDP_VERSION  0x5 /* version */
00317 #define LIBNET_CDP_PLATFORM 0x6 /* platform */
00318 #define LIBNET_CDP_IPPREFIX 0x7 /* ip prefix */
00319     u_int16_t cdp_len;        /* type + length + value */
00320     /* value information done dynamically */
00321 
00322 /* CDP capabilities */
00323 #define LIBNET_CDP_CAP_L3R  0x01/* performs level 3 routing */
00324 #define LIBNET_CDP_CAP_L2B  0x02/* performs level 2 transparent bridging */
00325 #define LIBNET_CDP_CAP_L2SRB 0x04/* performs level 2 sourceroute bridging */
00326 #define LIBNET_CDP_CAP_L2S  0x08/* performs level 2 switching */
00327 #define LIBNET_CDP_CAP_SR   0x10/* sends and recieves packets on a network */
00328 #define LIBNET_CDP_CAP_NOI  0x20/* does not forward IGMP on non-router ports */
00329 #define LIBNET_CDP_CAP_L1F  0x40/* provides level 1 functionality */
00330 };
00331 
00332 
00333 /*
00334  *  Used as an overlay for type/len/values
00335  */
00336 struct libnet_cdp_value_hdr
00337 {
00338     u_int16_t cdp_type;
00339     u_int16_t cdp_len;
00340 };
00341 
00342 
00343 /*
00344  *  DHCP header
00345  *  Dynamic Host Configuration Protocol
00346  *  Static header size: f0 bytes
00347  */
00348 struct libnet_dhcpv4_hdr
00349 {
00350     u_int8_t dhcp_opcode;     /* opcode */
00351 #define LIBNET_DHCP_REQUEST 0x1
00352 #define LIBNET_DHCP_REPLY   0x2
00353     u_int8_t dhcp_htype;      /* hardware address type */
00354     u_int8_t dhcp_hlen;       /* hardware address length */
00355     u_int8_t dhcp_hopcount;   /* used by proxy servers */
00356     u_int32_t dhcp_xid;        /* transaction ID */
00357     u_int16_t dhcp_secs;      /* number of seconds since trying to bootstrap */
00358     u_int16_t dhcp_flags;     /* flags for DHCP, unused for BOOTP */
00359     u_int32_t dhcp_cip;        /* client's IP */
00360     u_int32_t dhcp_yip;        /* your IP */
00361     u_int32_t dhcp_sip;        /* server's IP */
00362     u_int32_t dhcp_gip;        /* gateway IP */
00363     u_int8_t dhcp_chaddr[16]; /* client hardware address */
00364     u_int8_t dhcp_sname[64];  /* server host name */
00365     u_int8_t dhcp_file[128];  /* boot file name */
00366     u_int32_t dhcp_magic;      /* BOOTP magic header */
00367 #define DHCP_MAGIC                  0x63825363
00368 #define LIBNET_BOOTP_MIN_LEN        0x12c
00369 #define LIBNET_DHCP_PAD             0x00
00370 #define LIBNET_DHCP_SUBNETMASK      0x01
00371 #define LIBNET_DHCP_TIMEOFFSET      0x02
00372 #define LIBNET_DHCP_ROUTER          0x03
00373 #define LIBNET_DHCP_TIMESERVER      0x04
00374 #define LIBNET_DHCP_NAMESERVER      0x05
00375 #define LIBNET_DHCP_DNS             0x06
00376 #define LIBNET_DHCP_LOGSERV         0x07
00377 #define LIBNET_DHCP_COOKIESERV      0x08
00378 #define LIBNET_DHCP_LPRSERV         0x09
00379 #define LIBNET_DHCP_IMPSERV         0x0a
00380 #define LIBNET_DHCP_RESSERV         0x0b
00381 #define LIBNET_DHCP_HOSTNAME        0x0c
00382 #define LIBNET_DHCP_BOOTFILESIZE    0x0d
00383 #define LIBNET_DHCP_DUMPFILE        0x0e
00384 #define LIBNET_DHCP_DOMAINNAME      0x0f
00385 #define LIBNET_DHCP_SWAPSERV        0x10
00386 #define LIBNET_DHCP_ROOTPATH        0x11
00387 #define LIBNET_DHCP_EXTENPATH       0x12
00388 #define LIBNET_DHCP_IPFORWARD       0x13
00389 #define LIBNET_DHCP_SRCROUTE        0x14
00390 #define LIBNET_DHCP_POLICYFILTER    0x15
00391 #define LIBNET_DHCP_MAXASMSIZE      0x16
00392 #define LIBNET_DHCP_IPTTL           0x17
00393 #define LIBNET_DHCP_MTUTIMEOUT      0x18
00394 #define LIBNET_DHCP_MTUTABLE        0x19
00395 #define LIBNET_DHCP_MTUSIZE         0x1a
00396 #define LIBNET_DHCP_LOCALSUBNETS    0x1b
00397 #define LIBNET_DHCP_BROADCASTADDR   0x1c
00398 #define LIBNET_DHCP_DOMASKDISCOV    0x1d
00399 #define LIBNET_DHCP_MASKSUPPLY      0x1e
00400 #define LIBNET_DHCP_DOROUTEDISC     0x1f
00401 #define LIBNET_DHCP_ROUTERSOLICIT   0x20
00402 #define LIBNET_DHCP_STATICROUTE     0x21
00403 #define LIBNET_DHCP_TRAILERENCAP    0x22
00404 #define LIBNET_DHCP_ARPTIMEOUT      0x23
00405 #define LIBNET_DHCP_ETHERENCAP      0x24
00406 #define LIBNET_DHCP_TCPTTL          0x25
00407 #define LIBNET_DHCP_TCPKEEPALIVE    0x26
00408 #define LIBNET_DHCP_TCPALIVEGARBAGE 0x27
00409 #define LIBNET_DHCP_NISDOMAIN       0x28
00410 #define LIBNET_DHCP_NISSERVERS      0x29
00411 #define LIBNET_DHCP_NISTIMESERV     0x2a
00412 #define LIBNET_DHCP_VENDSPECIFIC    0x2b
00413 #define LIBNET_DHCP_NBNS            0x2c
00414 #define LIBNET_DHCP_NBDD            0x2d
00415 #define LIBNET_DHCP_NBTCPIP         0x2e
00416 #define LIBNET_DHCP_NBTCPSCOPE      0x2f
00417 #define LIBNET_DHCP_XFONT           0x30
00418 #define LIBNET_DHCP_XDISPLAYMGR     0x31
00419 #define LIBNET_DHCP_DISCOVERADDR    0x32
00420 #define LIBNET_DHCP_LEASETIME       0x33
00421 #define LIBNET_DHCP_OPTIONOVERLOAD  0x34
00422 #define LIBNET_DHCP_MESSAGETYPE     0x35
00423 #define LIBNET_DHCP_SERVIDENT       0x36
00424 #define LIBNET_DHCP_PARAMREQUEST    0x37
00425 #define LIBNET_DHCP_MESSAGE         0x38
00426 #define LIBNET_DHCP_MAXMSGSIZE      0x39
00427 #define LIBNET_DHCP_RENEWTIME       0x3a
00428 #define LIBNET_DHCP_REBINDTIME      0x3b
00429 #define LIBNET_DHCP_CLASSSID        0x3c
00430 #define LIBNET_DHCP_CLIENTID        0x3d
00431 #define LIBNET_DHCP_NISPLUSDOMAIN   0x40
00432 #define LIBNET_DHCP_NISPLUSSERVERS  0x41
00433 #define LIBNET_DHCP_MOBILEIPAGENT   0x44
00434 #define LIBNET_DHCP_SMTPSERVER      0x45
00435 #define LIBNET_DHCP_POP3SERVER      0x46
00436 #define LIBNET_DHCP_NNTPSERVER      0x47
00437 #define LIBNET_DHCP_WWWSERVER       0x48
00438 #define LIBNET_DHCP_FINGERSERVER    0x49
00439 #define LIBNET_DHCP_IRCSERVER       0x4a
00440 #define LIBNET_DHCP_STSERVER        0x4b
00441 #define LIBNET_DHCP_STDASERVER      0x4c
00442 #define LIBNET_DHCP_END             0xff
00443 
00444 #define LIBNET_DHCP_MSGDISCOVER     0x01
00445 #define LIBNET_DHCP_MSGOFFER        0x02
00446 #define LIBNET_DHCP_MSGREQUEST      0x03
00447 #define LIBNET_DHCP_MSGDECLINE      0x04
00448 #define LIBNET_DHCP_MSGACK          0x05
00449 #define LIBNET_DHCP_MSGNACK         0x06
00450 #define LIBNET_DHCP_MSGRELEASE      0x07
00451 #define LIBNET_DHCP_MSGINFORM       0x08
00452 };
00453 
00454 
00455 /*
00456  *  Base DNSv4 header
00457  *  Domain Name System
00458  *  Base header size: 12/14 bytes
00459  */
00460 /* this little guy got left out in the cold */
00461 #define LIBNET_DNS_H LIBNET_UDP_DNSV4_H
00462 struct libnet_dnsv4_hdr
00463 {
00464     u_int16_t h_len;          /* length of the packet - only used with TCP */
00465     u_int16_t id;             /* DNS packet ID */
00466     u_int16_t flags;          /* DNS flags */
00467     u_int16_t num_q;          /* Number of questions */
00468     u_int16_t num_answ_rr;    /* Number of answer resource records */
00469     u_int16_t num_auth_rr;    /* Number of authority resource records */
00470     u_int16_t num_addi_rr;    /* Number of additional resource records */
00471 };
00472 
00473 
00474 /*
00475  *  Ethernet II header
00476  *  Static header size: 14 bytes
00477  */
00478 struct libnet_ethernet_hdr
00479 {
00480     u_int8_t  ether_dhost[ETHER_ADDR_LEN];/* destination ethernet address */
00481     u_int8_t  ether_shost[ETHER_ADDR_LEN];/* source ethernet address */
00482     u_int16_t ether_type;                 /* protocol */
00483 };
00484 
00485 #ifndef ETHERTYPE_PUP
00486 #define ETHERTYPE_PUP           0x0200  /* PUP protocol */
00487 #endif
00488 #ifndef ETHERTYPE_IP
00489 #define ETHERTYPE_IP            0x0800  /* IP protocol */
00490 #endif
00491 #ifndef ETHERTYPE_ARP
00492 #define ETHERTYPE_ARP           0x0806  /* addr. resolution protocol */
00493 #endif
00494 #ifndef ETHERTYPE_REVARP
00495 #define ETHERTYPE_REVARP        0x8035  /* reverse addr. resolution protocol */
00496 #endif
00497 #ifndef ETHERTYPE_VLAN
00498 #define ETHERTYPE_VLAN          0x8100  /* IEEE 802.1Q VLAN tagging */
00499 #endif
00500 #ifndef ETHERTYPE_EAP
00501 #define ETHERTYPE_EAP           0x888e  /* IEEE 802.1X EAP authentication */
00502 #endif
00503 #ifndef ETHERTYPE_MPLS
00504 #define ETHERTYPE_MPLS          0x8847  /* MPLS */
00505 #endif
00506 #ifndef ETHERTYPE_LOOPBACK
00507 #define ETHERTYPE_LOOPBACK      0x9000  /* used to test interfaces */
00508 #endif
00509 
00510 struct libnet_ether_addr
00511 {
00512     u_int8_t  ether_addr_octet[6];        /* Ethernet address */
00513 };
00514 
00515 /*
00516  *  Fiber Distributed Data Interface header
00517  *
00518  *  Static header size: 21 bytes (LLC and 48-bit address addr only)
00519  *
00520  *  Note: Organization field is 3 bytes which throws off the
00521  *        alignment of type.  Therefore fddi_type (19 bytes in) 
00522  *        is specified as two u_int8_ts.
00523  */
00524 struct libnet_fddi_hdr
00525 {
00526     u_int8_t  fddi_frame_control;                      /* Class/Format/Priority */
00527 #define LIBNET_FDDI_LLC_FRAME  0x10
00528 #define LIBNET_FDDI_48BIT_ADDR 0x40
00529 #define LIBNET_FDDI_FC_REQD    LIBNET_FDDI_LLC_FRAME | LIBNET_FDDI_48BIT_ADDR 
00530     u_int8_t  fddi_dhost[FDDI_ADDR_LEN];               /* destination fddi address */
00531     u_int8_t  fddi_shost[FDDI_ADDR_LEN];               /* source fddi address */
00532     u_int8_t  fddi_llc_dsap;                           /* DSAP */
00533     u_int8_t  fddi_llc_ssap;                           /* SSAP */
00534     u_int8_t  fddi_llc_control_field;                  /* Class/Format/Priority */
00535     u_int8_t  fddi_llc_org_code[LIBNET_ORG_CODE_SIZE]; /* Organization Code 3-bytes */
00536     u_int8_t  fddi_type;                               /* Protocol Type */
00537     u_int8_t  fddi_type1;                              /* see note above. */
00538 #define FDDI_TYPE_IP            0x0800  /* IP protocol */
00539 #define FDDI_TYPE_ARP           0x0806  /* addr. resolution protocol */
00540 #define FDDI_TYPE_REVARP        0x8035  /* reverse addr. resolution protocol */
00541 };
00542 
00543 
00544 struct libnet_fddi_addr
00545 {
00546     u_int8_t  fddi_addr_octet[6];        /* FDDI address */
00547 };
00548 
00549 
00550 /*
00551  * GRE header - RFC 1701 & 2637
00552  * Generic Routing Encapsulation (GRE) 
00553  * Base header size: 4 bytes
00554  */
00555 struct libnet_gre_hdr
00556 {
00557     u_int16_t flags_ver;
00558 #define GRE_CSUM                            0x8000
00559 #define GRE_ROUTING                         0x4000
00560 #define GRE_KEY                             0x2000
00561 #define GRE_SEQ                             0x1000
00562 #define GRE_STRICT                          0x0800
00563 #define GRE_REC                             0x0700
00564 #define GRE_ACK                             0x0080
00565 
00566 #define GRE_FLAGS_MASK                          0x00F8
00567 #define GRE_VERSION_MASK                        0x0007
00568 
00569 #define GRE_VERSION_0                           0x0000
00570 #define GRE_VERSION_1                           0x0001
00571 
00572     u_int16_t type;
00573 #define GRE_SNA                                 0x0004
00574 #define GRE_OSI_NETWORK_LAYER                   0x00FE
00575 #define GRE_PUP                                 0x0200
00576 #define GRE_XNS                                 0x0600
00577 #define GRE_IP                                  0x0800
00578 #define GRE_CHAOS                               0x0804
00579 #define GRE_RFC_826_ARP                         0x0806
00580 #define GRE_FRAME_RELAY_ARP                     0x0808
00581 #define GRE_VINES                               0x0BAD
00582 #define GRE_VINES_ECHO                          0x0BAE
00583 #define GRE_VINES_LOOPBACK                      0x0BAF
00584 #define GRE_DECNET                              0x6003
00585 #define GRE_TRANSPARENT_ETHERNET_BRIDGING       0x6558
00586 #define GRE_RAW_FRAME_RELAY                     0x6559
00587 #define GRE_APOLLO_DOMAIN                       0x8019
00588 #define GRE_ETHERTALK                           0x809B
00589 #define GRE_NOVELL_IPX                          0x8137
00590 #define GRE_RFC_1144_TCP_IP_COMPRESSION         0x876B
00591 #define GRE_IP_AUTONOMOUS_SYSTEMS               0x876C
00592 #define GRE_SECURE_DATA                         0x876D
00593 #define GRE_PPP                                 0x880b /* taken from RFC 2637 */
00594 
00595     union {
00596     struct {
00597         u_int16_t checksum;  /* optional */
00598         u_int16_t offset;    /* optional */
00599         u_int32_t key;        /* optional */
00600         u_int32_t seq;        /* optional */
00601     } _gre;
00602 
00603     struct {
00604         u_int16_t payload_s; /* optional */
00605         u_int16_t callID;    /* optional */
00606         u_int32_t seq;        /* optional */
00607         u_int32_t ack;        /* optional */
00608     } _egre;
00609     }_data;
00610 
00611 #define gre_checksum _data._gre.checksum
00612 #define gre_offset _data._gre.offset
00613 #define gre_key _data._gre.key
00614 #define gre_seq _data._gre.seq
00615 
00616 #define egre_payload_s _data._egre.payload_s
00617 #define egre_callID _data._egre.callID
00618 #define egre_seq _data._egre.seq
00619 #define egre_ack _data._egre.ack
00620 };
00621 
00622 
00623 #ifndef IPPROTO_GRE
00624 #define IPPROTO_GRE 47
00625 #endif
00626 
00627 /*
00628  * Source Route Entries (SRE)
00629  * This is used for GRE as the Routing field is a list of SREs - RFC 1701
00630  * Base header size: 4 bytes
00631  */
00632 struct libnet_gre_sre_hdr
00633 {
00634     u_int16_t af;  /* address familly */
00635     u_int8_t sre_offset;
00636     u_int8_t sre_length;
00637     u_int8_t *routing;
00638 };
00639 
00640 
00641 /*
00642  *  IPv4 header
00643  *  Internet Protocol, version 4
00644  *  Static header size: 20 bytes
00645  */
00646 struct libnet_ipv4_hdr
00647 {
00648 #if (LIBNET_LIL_ENDIAN)
00649     u_int8_t ip_hl:4,      /* header length */
00650            ip_v:4;         /* version */
00651 #endif
00652 #if (LIBNET_BIG_ENDIAN)
00653     u_int8_t ip_v:4,       /* version */
00654            ip_hl:4;        /* header length */
00655 #endif
00656     u_int8_t ip_tos;       /* type of service */
00657 #ifndef IPTOS_LOWDELAY
00658 #define IPTOS_LOWDELAY      0x10
00659 #endif
00660 #ifndef IPTOS_THROUGHPUT
00661 #define IPTOS_THROUGHPUT    0x08
00662 #endif
00663 #ifndef IPTOS_RELIABILITY
00664 #define IPTOS_RELIABILITY   0x04
00665 #endif
00666 #ifndef IPTOS_LOWCOST
00667 #define IPTOS_LOWCOST       0x02
00668 #endif
00669     u_int16_t ip_len;         /* total length */
00670     u_int16_t ip_id;          /* identification */
00671     u_int16_t ip_off;
00672 #ifndef IP_RF
00673 #define IP_RF 0x8000        /* reserved fragment flag */
00674 #endif
00675 #ifndef IP_DF
00676 #define IP_DF 0x4000        /* dont fragment flag */
00677 #endif
00678 #ifndef IP_MF
00679 #define IP_MF 0x2000        /* more fragments flag */
00680 #endif 
00681 #ifndef IP_OFFMASK
00682 #define IP_OFFMASK 0x1fff   /* mask for fragmenting bits */
00683 #endif
00684     u_int8_t ip_ttl;          /* time to live */
00685     u_int8_t ip_p;            /* protocol */
00686     u_int16_t ip_sum;         /* checksum */
00687     struct in_addr ip_src, ip_dst; /* source and dest address */
00688 };
00689 
00690 /*
00691  *  IP options
00692  */
00693 #ifndef IPOPT_EOL
00694 #define IPOPT_EOL       0   /* end of option list */
00695 #endif
00696 #ifndef IPOPT_NOP
00697 #define IPOPT_NOP       1   /* no operation */
00698 #endif   
00699 #ifndef IPOPT_RR
00700 #define IPOPT_RR        7   /* record packet route */
00701 #endif
00702 #ifndef IPOPT_TS
00703 #define IPOPT_TS        68  /* timestamp */
00704 #endif
00705 #ifndef IPOPT_SECURITY
00706 #define IPOPT_SECURITY  130 /* provide s,c,h,tcc */   
00707 #endif
00708 #ifndef IPOPT_LSRR
00709 #define IPOPT_LSRR      131 /* loose source route */
00710 #endif
00711 #ifndef IPOPT_SATID
00712 #define IPOPT_SATID     136 /* satnet id */
00713 #endif
00714 #ifndef IPOPT_SSRR
00715 #define IPOPT_SSRR      137 /* strict source route */
00716 #endif
00717 
00718 struct libnet_in6_addr
00719 {
00720     union
00721     {
00722         u_int8_t   __u6_addr8[16];
00723         u_int16_t  __u6_addr16[8];
00724         u_int32_t  __u6_addr32[4];
00725     } __u6_addr;            /* 128-bit IP6 address */
00726 };
00727 #define libnet_s6_addr __u6_addr.__u6_addr8
00728 
00729 /*
00730  *  IPv6 header
00731  *  Internet Protocol, version 6
00732  *  Static header size: 40 bytes
00733  */
00734 struct libnet_ipv6_hdr
00735 {
00736     u_int8_t ip_flags[4];     /* version, traffic class, flow label */
00737     u_int16_t ip_len;         /* total length */
00738     u_int8_t ip_nh;           /* next header */
00739     u_int8_t ip_hl;           /* hop limit */
00740     struct libnet_in6_addr ip_src, ip_dst; /* source and dest address */
00741 
00742 };
00743 
00744 /*
00745  *  IPv6 frag header
00746  *  Internet Protocol, version 6
00747  *  Static header size: 8 bytes
00748  */
00749 #define LIBNET_IPV6_NH_FRAGMENT 44
00750 struct libnet_ipv6_frag_hdr
00751 {
00752     u_int8_t ip_nh;          /* next header */
00753     u_int8_t ip_reserved;    /* reserved */
00754     u_int16_t ip_frag;       /* fragmentation stuff */
00755     u_int32_t ip_id;         /* id */
00756 };
00757 
00758 /*
00759  *  IPv6 routing header
00760  *  Internet Protocol, version 6
00761  *  Base header size: 4 bytes
00762  */
00763 #define LIBNET_IPV6_NH_ROUTING  43
00764 struct libnet_ipv6_routing_hdr
00765 {
00766     u_int8_t ip_nh;          /* next header */
00767     u_int8_t ip_len;         /* length of header in 8 octet units (sans 1st) */
00768     u_int8_t ip_rtype;       /* routing type */
00769     u_int8_t ip_segments;    /* segments left */
00770     /* routing information allocated dynamically */
00771 };
00772 
00773 /*
00774  *  IPv6 destination options header
00775  *  Internet Protocol, version 6
00776  *  Base header size: 2 bytes
00777  */
00778 #define LIBNET_IPV6_NH_DESTOPTS 60
00779 struct libnet_ipv6_destopts_hdr
00780 {
00781     u_int8_t ip_nh;          /* next header */
00782     u_int8_t ip_len;         /* length of header in 8 octet units (sans 1st) */
00783     /* destination options information allocated dynamically */
00784 };
00785 
00786 /*
00787  *  IPv6 hop by hop options header
00788  *  Internet Protocol, version 6
00789  *  Base header size: 2 bytes
00790  */
00791 #define LIBNET_IPV6_NH_HBH      0
00792 struct libnet_ipv6_hbhopts_hdr
00793 {
00794     u_int8_t ip_nh;          /* next header */
00795     u_int8_t ip_len;         /* length of header in 8 octet units (sans 1st) */
00796     /* destination options information allocated dynamically */
00797 };
00798 
00799 /*
00800  *  ICMP6 header
00801  *  Internet Control Message Protocol v6
00802  *  Base header size: 8 bytes
00803  */
00804 #ifndef IPPROTO_ICMP6
00805 #define IPPROTO_ICMP6   0x3a
00806 #endif
00807 struct libnet_icmpv6_hdr
00808 {
00809     u_int8_t icmp_type;       /* ICMP type */
00810 #ifndef ICMP6_ECHO
00811 #define ICMP6_ECHO          128
00812 #endif
00813 #ifndef ICMP6_ECHOREPLY
00814 #define ICMP6_ECHOREPLY     129
00815 #endif
00816 #ifndef ICMP6_UNREACH
00817 #define ICMP6_UNREACH       1
00818 #endif
00819 #ifndef ICMP6_PKTTOOBIG
00820 #define ICMP6_PKTTOOBIG     2
00821 #endif
00822 #ifndef ICMP6_TIMXCEED
00823 #define ICMP6_TIMXCEED      3
00824 #endif
00825 #ifndef ICMP6_PARAMPROB
00826 #define ICMP6_PARAMPROB     4
00827 #endif
00828     u_int8_t icmp_code;       /* ICMP code */
00829     u_int16_t icmp_sum;       /* ICMP Checksum */
00830     u_int16_t id;             /* ICMP id */
00831     u_int16_t seq;            /* ICMP sequence number */
00832 };
00833 
00834 
00835 
00836 /*
00837  *  ICMP header
00838  *  Internet Control Message Protocol
00839  *  Base header size: 4 bytes
00840  */
00841 struct libnet_icmpv4_hdr
00842 {
00843     u_int8_t icmp_type;       /* ICMP type */
00844 #ifndef     ICMP_ECHOREPLY
00845 #define     ICMP_ECHOREPLY                  0
00846 #endif
00847 #ifndef     ICMP_UNREACH
00848 #define     ICMP_UNREACH                    3
00849 #endif
00850 #ifndef     ICMP_SOURCEQUENCH
00851 #define     ICMP_SOURCEQUENCH               4
00852 #endif
00853 #ifndef     ICMP_REDIRECT
00854 #define     ICMP_REDIRECT                   5
00855 #endif
00856 #ifndef     ICMP_ECHO
00857 #define     ICMP_ECHO                       8
00858 #endif
00859 #ifndef     ICMP_ROUTERADVERT
00860 #define     ICMP_ROUTERADVERT               9
00861 #endif
00862 #ifndef     ICMP_ROUTERSOLICIT
00863 #define     ICMP_ROUTERSOLICIT              10
00864 #endif
00865 #ifndef     ICMP_TIMXCEED
00866 #define     ICMP_TIMXCEED                   11
00867 #endif
00868 #ifndef     ICMP_PARAMPROB
00869 #define     ICMP_PARAMPROB                  12
00870 #endif
00871 #ifndef     ICMP_TSTAMP
00872 #define     ICMP_TSTAMP                     13
00873 #endif
00874 #ifndef     ICMP_TSTAMPREPLY
00875 #define     ICMP_TSTAMPREPLY                14
00876 #endif
00877 #ifndef     ICMP_IREQ
00878 #define     ICMP_IREQ                       15
00879 #endif
00880 #ifndef     ICMP_IREQREPLY
00881 #define     ICMP_IREQREPLY                  16
00882 #endif
00883 #ifndef     ICMP_MASKREQ
00884 #define     ICMP_MASKREQ                    17
00885 #endif
00886 #ifndef     ICMP_MASKREPLY
00887 #define     ICMP_MASKREPLY                  18
00888 #endif
00889     u_int8_t icmp_code;       /* ICMP code */
00890 #ifndef     ICMP_UNREACH_NET
00891 #define     ICMP_UNREACH_NET                0
00892 #endif
00893 #ifndef     ICMP_UNREACH_HOST
00894 #define     ICMP_UNREACH_HOST               1
00895 #endif
00896 #ifndef     ICMP_UNREACH_PROTOCOL
00897 #define     ICMP_UNREACH_PROTOCOL           2
00898 #endif
00899 #ifndef     ICMP_UNREACH_PORT
00900 #define     ICMP_UNREACH_PORT               3
00901 #endif
00902 #ifndef     ICMP_UNREACH_NEEDFRAG
00903 #define     ICMP_UNREACH_NEEDFRAG           4
00904 #endif
00905 #ifndef     ICMP_UNREACH_SRCFAIL
00906 #define     ICMP_UNREACH_SRCFAIL            5
00907 #endif
00908 #ifndef     ICMP_UNREACH_NET_UNKNOWN
00909 #define     ICMP_UNREACH_NET_UNKNOWN        6
00910 #endif
00911 #ifndef     ICMP_UNREACH_HOST_UNKNOWN
00912 #define     ICMP_UNREACH_HOST_UNKNOWN       7
00913 #endif
00914 #ifndef     ICMP_UNREACH_ISOLATED
00915 #define     ICMP_UNREACH_ISOLATED           8
00916 #endif
00917 #ifndef     ICMP_UNREACH_NET_PROHIB
00918 #define     ICMP_UNREACH_NET_PROHIB         9
00919 #endif
00920 #ifndef     ICMP_UNREACH_HOST_PROHIB
00921 #define     ICMP_UNREACH_HOST_PROHIB        10
00922 #endif
00923 #ifndef     ICMP_UNREACH_TOSNET
00924 #define     ICMP_UNREACH_TOSNET             11
00925 #endif
00926 #ifndef     ICMP_UNREACH_TOSHOST
00927 #define     ICMP_UNREACH_TOSHOST            12
00928 #endif
00929 #ifndef     ICMP_UNREACH_FILTER_PROHIB
00930 #define     ICMP_UNREACH_FILTER_PROHIB      13
00931 #endif
00932 #ifndef     ICMP_UNREACH_HOST_PRECEDENCE
00933 #define     ICMP_UNREACH_HOST_PRECEDENCE    14
00934 #endif
00935 #ifndef     ICMP_UNREACH_PRECEDENCE_CUTOFF
00936 #define     ICMP_UNREACH_PRECEDENCE_CUTOFF  15
00937 #endif
00938 #ifndef     ICMP_REDIRECT_NET
00939 #define     ICMP_REDIRECT_NET               0
00940 #endif
00941 #ifndef     ICMP_REDIRECT_HOST
00942 #define     ICMP_REDIRECT_HOST              1
00943 #endif
00944 #ifndef     ICMP_REDIRECT_TOSNET
00945 #define     ICMP_REDIRECT_TOSNET            2
00946 #endif
00947 #ifndef     ICMP_REDIRECT_TOSHOST
00948 #define     ICMP_REDIRECT_TOSHOST           3
00949 #endif
00950 #ifndef     ICMP_TIMXCEED_INTRANS
00951 #define     ICMP_TIMXCEED_INTRANS           0
00952 #endif
00953 #ifndef     ICMP_TIMXCEED_REASS
00954 #define     ICMP_TIMXCEED_REASS             1
00955 #endif
00956 #ifndef     ICMP_PARAMPROB_OPTABSENT
00957 #define     ICMP_PARAMPROB_OPTABSENT        1
00958 #endif
00959 
00960     u_int16_t icmp_sum;   /* ICMP Checksum */
00961 
00962     union
00963     {
00964         struct
00965         {
00966             u_int16_t id; /* ICMP id */
00967             u_int16_t seq;/* ICMP sequence number */
00968         } echo;
00969 
00970 #undef icmp_id
00971 #undef icmp_seq
00972 #define icmp_id     hun.echo.id
00973 #define icmp_seq    hun.echo.seq
00974  
00975         u_int32_t gateway; /* gateway host */
00976         struct
00977         {
00978             u_int16_t pad;/* padding */
00979             u_int16_t mtu;/* MTU size */
00980         } frag;
00981     } hun;
00982     union
00983     {
00984         struct
00985         {
00986             n_time its_otime;
00987             n_time its_rtime;
00988             n_time its_ttime;
00989         } ts;
00990         struct
00991         {
00992             struct libnet_ipv4_hdr idi_ip;
00993             /* options and then 64 bits of data */
00994         } ip;
00995         u_int32_t mask;
00996         int8_t data[1];
00997 
00998 #undef icmp_mask
00999 #define icmp_mask    dun.mask
01000 #undef icmp_data
01001 #define icmp_data    dun.data
01002 
01003 #undef icmp_otime
01004 #define icmp_otime   dun.ts.its_otime
01005 #undef icmp_rtime
01006 #define icmp_rtime   dun.ts.its_rtime
01007 #undef icmp_ttime
01008 #define icmp_ttime   dun.ts.its_ttime
01009     }dun;
01010 };
01011 
01012 
01013 /*
01014  *  IGMP header
01015  *  Internet Group Message Protocol
01016  *  Static header size: 8 bytes
01017  */
01018 struct libnet_igmp_hdr
01019 {
01020     u_int8_t igmp_type;       /* IGMP type */
01021 #ifndef IGMP_MEMBERSHIP_QUERY
01022 #define IGMP_MEMBERSHIP_QUERY           0x11    /* membership query */
01023 #endif
01024 #ifndef IGMP_V1_MEMBERSHIP_REPORT
01025 #define IGMP_V1_MEMBERSHIP_REPORT       0x12    /* Ver. 1 membership report */
01026 #endif
01027 #ifndef IGMP_V2_MEMBERSHIP_REPORT
01028 #define IGMP_V2_MEMBERSHIP_REPORT       0x16    /* Ver. 2 membership report */
01029 #endif
01030 #ifndef IGMP_LEAVE_GROUP
01031 #define IGMP_LEAVE_GROUP                0x17    /* Leave-group message */
01032 #endif
01033     u_int8_t igmp_code;       /* IGMP code */
01034     u_int16_t igmp_sum;       /* IGMP checksum */
01035     struct in_addr igmp_group;/* IGMP host IP */
01036 };
01037 
01038 
01039 /*
01040  *  IPSEC header
01041  *  Internet Protocol Security Protocol
01042  *  Encapsulating Security Payload Header Static header size: 12 bytes
01043  *  Encapsulating Security Payload Footer Base header size: 2 bytes
01044  *  Authentication Header Static Size: 16 bytes
01045  */
01046 #ifndef IPPROTO_ESP
01047 #define IPPROTO_ESP 50      /* not everyone's got this */
01048 #endif
01049 struct libnet_esp_hdr
01050 {
01051    u_int32_t esp_spi;          /* security parameter index */
01052    u_int32_t esp_seq;          /* ESP sequence number */
01053    u_int32_t esp_iv;           /* initialization vector */
01054 };
01055 
01056 struct libnet_esp_ftr
01057 {
01058     u_int8_t esp_pad_len;     /* padding length */
01059     u_int8_t esp_nxt_hdr;     /* next header pointer */
01060     int8_t *esp_auth;         /* authentication data */
01061 };
01062  
01063 #ifndef IPPROTO_AH
01064 #define IPPROTO_AH 51       /* not everyone's got this */
01065 #endif
01066 struct libnet_ah_hdr
01067 {
01068     u_int8_t ah_nxt_hdr;      /* next header */
01069     u_int8_t ah_len;          /* payload length */
01070     u_int16_t ah_res;         /* reserved */
01071     u_int32_t ah_spi;          /* security parameter index  */
01072     u_int32_t ah_seq;          /* AH sequence number */
01073     u_int32_t ah_auth;         /* authentication data */
01074 };
01075 
01076 
01077 /*
01078  *  ISL header
01079  *  Cisco Inter-Switch Link
01080  *  Static header size: 26 bytes
01081  */
01082 /*
01083  *  For checksum stuff -- IANA says 135-254 is "unassigned" as of 12.2001.
01084  *  Let's hope this one stays that way for a while!
01085  */
01086 #define LIBNET_PROTO_ISL    201
01087 struct libnet_isl_hdr
01088 {
01089     u_int8_t isl_dhost[5];    /* destination address "01:00:0c:00:00" */
01090 #if (LIBNET_LIL_ENDIAN)
01091     u_int8_t isl_type:4,      /* type of frame */
01092            isl_user:4;      /* user defined bits */
01093 #endif
01094 #if (LIBNET_BIG_ENDIAN)
01095     u_int8_t isl_user:4,      /* user defined bits */
01096            isl_type:4;      /* type of frame */
01097 #endif
01098     u_int8_t isl_shost[6];    /* source address */
01099     u_int16_t isl_len;        /* total length of packet - 18 bytes */
01100     u_int8_t isl_snap[6];     /* 0xaaaa03 + vendor code */
01101     u_int16_t isl_vid;        /* 15 bit VLAN ID, 1 bit BPDU / CDP indicator */
01102     u_int16_t isl_index;      /* port index */
01103     u_int16_t isl_reserved;   /* used for FDDI and token ring */
01104     /* ethernet frame and 4 byte isl crc */
01105 };
01106 
01107 #ifndef IPPROTO_OSPF
01108 #define IPPROTO_OSPF    89  /* not everyone's got this */
01109 #endif
01110 #define IPPROTO_OSPF_LSA    890     /* made this up.  Hope it's unused */
01111 #define LIBNET_MODX         4102    /* used in LSA checksum */
01112 
01113 /*
01114  *  Options used in multiple OSPF packets
01115  *  More info can be found in section A.2 of RFC 2328.
01116  */
01117 #define LIBNET_OPT_EBIT  0x02 /* describes the way AS-external-LSAs are flooded */
01118 #define LIBNET_OPT_MCBIT 0x04 /* whether or not IP multicast dgrams are fwdd */
01119 #define LIBNET_OPT_NPBIT 0x08 /* describes handling of type-7 LSAs */
01120 #define LIBNET_OPT_EABIT 0x10 /* rtr's willingness to send/recv EA-LSAs */
01121 #define LIBNET_OPT_DCBIT 0x20 /* describes handling of demand circuits */
01122 
01123 
01124 /*
01125  *  MPLS header
01126  *  Multi-Protocol Label Switching
01127  *  Static header size: 4 bytes
01128  */
01129 struct libnet_mpls_hdr
01130 {
01131     u_int32_t mpls_les;          /* 20 bits label, 3 bits exp, 1 bit bos, ttl */
01132 #define LIBNET_MPLS_BOS_ON    1
01133 #define LIBNET_MPLS_BOS_OFF   0
01134 };
01135 
01136 /*
01137  *  NTP header
01138  *  Network Time Protocol
01139  *  Static header size: 48 bytes
01140  */
01141 struct libnet_ntp_hdr_l_fp  /* int32_t floating point (64-bit) */
01142 {
01143     u_int32_t integer;         /* integer */
01144     u_int32_t fraction;        /* fraction */
01145 };
01146 
01147 struct libnet_ntp_hdr_s_fp  /* int16_t floating point (32-bit) */
01148 {
01149     u_int16_t integer;        /* integer */
01150     u_int16_t fraction;       /* fraction */
01151 };
01152 
01153 
01154 struct libnet_ntp_hdr
01155 {
01156     u_int8_t ntp_li_vn_mode;              /* leap indicator, version, mode */
01157 #define LIBNET_NTP_LI_NW    0x0         /* no warning */
01158 #define LIBNET_NTP_LI_AS    0x1         /* last minute has 61 seconds */
01159 #define LIBNET_NTP_LI_DS    0x2         /* last minute has 59 seconds */
01160 #define LIBNET_NTP_LI_AC    0x3         /* alarm condition */
01161 
01162 #define LIBNET_NTP_VN_2     0x2         /* version 2 */
01163 #define LIBNET_NTP_VN_3     0x3         /* version 3 */
01164 #define LIBNET_NTP_VN_4     0x4         /* version 4 */
01165 
01166 #define LIBNET_NTP_MODE_R   0x0         /* reserved */
01167 #define LIBNET_NTP_MODE_A   0x1         /* symmetric active */
01168 #define LIBNET_NTP_MODE_P   0x2         /* symmetric passive */
01169 #define LIBNET_NTP_MODE_C   0x3         /* client */
01170 #define LIBNET_NTP_MODE_S   0x4         /* server */
01171 #define LIBNET_NTP_MODE_B   0x5         /* broadcast */
01172 #define LIBNET_NTP_MODE_RC  0x6         /* reserved for NTP control message */
01173 #define LIBNET_NTP_MODE_RP  0x7         /* reserved for private use */
01174     u_int8_t ntp_stratum;                 /* stratum */
01175 #define LIBNET_NTP_STRATUM_UNAVAIL  0x0 /* unspecified or unavailable */
01176 #define LIBNET_NTP_STRATUM_PRIMARY  0x1 /* primary reference (radio clock) */
01177                                         /* 2 - 15 is secondary */
01178                                         /* 16 - 255 is reserved */
01179     u_int8_t ntp_poll;                    /* poll interval (should be 4 - 12) */
01180     u_int8_t ntp_precision;               /* local clock precision */
01181     struct libnet_ntp_hdr_s_fp ntp_delay;       /* roundtrip delay */
01182     struct libnet_ntp_hdr_s_fp ntp_dispersion;  /* nominal error */
01183     u_int32_t ntp_reference_id;                /* reference source id */
01184 #define LIBNET_NTP_REF_LOCAL    0x4c4f434c  /* uncalibrated local clock */
01185 #define LIBNET_NTP_REF_PPS      0x50505300  /* atomic / pulse-per-second clock */
01186 #define LIBNET_NTP_REF_ACTS     0x41435453  /* NIST dialup modem */
01187 #define LIBNET_NTP_REF_USNO     0x55534e4f  /* USNO modem service */
01188 #define LIBNET_NTP_REF_PTB      0x50544200  /* PTB (German) modem service */ 
01189 #define LIBNET_NTP_REF_TDF      0x54444600  /* Allouis (French) radio */
01190 #define LIBNET_NTP_REF_DCF      0x44434600  /* Mainflingen (German) radio */
01191 #define LIBNET_NTP_REF_MSF      0x4d534600  /* Rugby (UK) radio */
01192 #define LIBNET_NTP_REF_WWV      0x57575600  /* Ft Collins (US) radio */
01193 #define LIBNET_NTP_REF_WWVB     0x57575642  /* Boulder (US) radio */
01194 #define LIBNET_NTP_REF_WWVH     0x57575648  /* Kaui Hawaii (US) radio */
01195 #define LIBNET_NTP_REF_CHU      0x43485500  /* Ottaha (Canada) radio */
01196 #define LIBNET_NTP_REF_LORC     0x4c4f5243  /* LORAN-C radionavigation */
01197 #define LIBNET_NTP_REF_OMEG     0x4f4d4547  /* OMEGA radionavigation */
01198 #define LIBNET_NTP_REF_GPS      0x47505300  /* global positioning system */
01199 #define LIBNET_NTP_REF_GOES     0x474f4553  /* geostationary orbit env satellite */
01200     struct libnet_ntp_hdr_l_fp ntp_ref_ts;  /* reference timestamp */ 
01201     struct libnet_ntp_hdr_l_fp ntp_orig_ts; /* originate timestamp */
01202     struct libnet_ntp_hdr_l_fp ntp_rec_ts;  /* receive timestamp */
01203     struct libnet_ntp_hdr_l_fp ntp_xmt_ts;  /* transmit timestamp */
01204 };
01205 
01206 
01207 /*
01208  *  OSPFv2 header
01209  *  Open Shortest Path First
01210  *  Static header size: 16 bytes
01211  */
01212 struct libnet_ospf_hdr
01213 {
01214     u_int8_t ospf_v;          /* version */
01215 #define OSPFVERSION         2
01216     u_int8_t ospf_type;       /* type */
01217 #define  LIBNET_OSPF_UMD    0   /* UMd monitoring packet */
01218 #define  LIBNET_OSPF_HELLO  1   /* HELLO packet */
01219 #define  LIBNET_OSPF_DBD    2   /* dataBase description packet */
01220 #define  LIBNET_OSPF_LSR    3   /* link state request packet */
01221 #define  LIBNET_OSPF_LSU    4   /* link state Update Packet */
01222 #define  LIBNET_OSPF_LSA    5   /* link state acknowledgement packet */
01223     u_int16_t   ospf_len;     /* length */
01224     struct in_addr ospf_rtr_id; /* source router ID */
01225     struct in_addr ospf_area_id;/* roam ID */
01226     u_int16_t ospf_cksum;         /* checksum */
01227     u_int16_t ospf_auth_type;     /* authentication type */
01228 #define LIBNET_OSPF_AUTH_NULL   0   /* null password */
01229 #define LIBNET_OSPF_AUTH_SIMPLE 1   /* simple, plaintext, 8 int8_t password */
01230 #define LIBNET_OSPF_AUTH_MD5    2   /* MD5 */
01231 };
01232 
01233 
01234 /*
01235  *  OSPF authentication header
01236  *  Open Shortest Path First
01237  *  Static header size: 8 bytes
01238  */
01239 struct libnet_auth_hdr
01240 {
01241     u_int16_t ospf_auth_null; /* NULL */
01242     u_int8_t ospf_auth_keyid; /* authentication key ID */
01243     u_int8_t ospf_auth_len;   /* auth data length */
01244     u_int ospf_auth_seq;    /* cryptographic sequence number */
01245 };
01246 
01247 
01248 /*
01249  *  OSPF hello header
01250  *  Open Shortest Path First
01251  *  Static header size: 28 bytes
01252  */
01253 struct libnet_ospf_hello_hdr
01254 {
01255     struct in_addr hello_nmask; /* netmask associated with the interface */
01256     u_int16_t hello_intrvl;       /* num of seconds between routers last packet */
01257     u_int8_t hello_opts;          /* Options for HELLO packets (look above) */
01258     u_int8_t hello_rtr_pri;       /* router's priority (if 0, can't be backup) */
01259     u_int hello_dead_intvl;     /* # of secs a router is silent till deemed down */
01260     struct in_addr hello_des_rtr;   /* Designated router on the network */
01261     struct in_addr hello_bkup_rtr;  /* Backup router */
01262     struct in_addr hello_nbr;       /* neighbor router, memcpy more as needed */
01263 };
01264 
01265 
01266 /*
01267  *  Database Description header.
01268  */
01269 struct libnet_dbd_hdr
01270 {
01271     u_int16_t dbd_mtu_len;    /* max length of IP dgram that this 'if' can use */
01272     u_int8_t dbd_opts;        /* DBD packet options (from above) */
01273     u_int8_t dbd_type;        /* type of exchange occurring */
01274 #define LIBNET_DBD_IBI      0x01    /* init */
01275 #define LIBNET_DBD_MBIT     0x02    /* more DBD packets are to come */
01276 #define LIBNET_DBD_MSBIT    0x04    /* If 1, sender is the master in the exchange */
01277     u_int  dbd_seq;         /* DBD sequence number */
01278 };
01279 
01280 
01281 /*
01282  *  used for the LS type field in all LS* headers
01283  */
01284 #define LIBNET_LS_TYPE_RTR      1   /* router-LSA */
01285 #define LIBNET_LS_TYPE_NET      2   /* network-LSA */
01286 #define LIBNET_LS_TYPE_IP       3   /* summary-LSA (IP Network) */
01287 #define LIBNET_LS_TYPE_ASBR     4   /* summary-LSA (ASBR) */
01288 #define LIBNET_LS_TYPE_ASEXT    5   /* AS-external-LSA */
01289 
01290 
01291 /*
01292  *  Link State Request header
01293  */
01294 struct libnet_lsr_hdr
01295 {
01296     u_int lsr_type;             /* type of LS being requested */
01297     u_int lsr_lsid;             /* link state ID */
01298     struct in_addr lsr_adrtr;   /* advertising router (memcpy more as needed) */
01299 };
01300 
01301 
01302 /*
01303  *  Link State Update header
01304  */
01305 struct libnet_lsu_hdr
01306 {
01307     u_int lsu_num;              /* number of LSAs that will be broadcasted */
01308 };
01309 
01310 
01311 /*
01312  *  Link State Acknowledgement header.
01313  */
01314 struct libnet_lsa_hdr
01315 {
01316     u_int16_t lsa_age;        /* time in seconds since the LSA was originated */
01317     u_int8_t lsa_opts;        /* look above for OPTS_* */
01318     u_int8_t lsa_type;        /* look below for LS_TYPE_* */
01319     u_int lsa_id;           /* link State ID */
01320     struct in_addr lsa_adv; /* router ID of Advertising router */
01321     u_int lsa_seq;          /* LSA sequence number to detect old/bad ones */
01322     u_int16_t lsa_cksum;      /* "Fletcher Checksum" of all fields minus age */
01323     u_int16_t lsa_len;        /* length in bytes including the 20 byte header */
01324 };
01325 
01326 
01327 /*
01328  *  Router LSA data format
01329  *
01330  *  Other stuff for TOS can be added for backward compatability, for this
01331  *  version, only OSPFv2 is being FULLY supported.
01332  */
01333 struct libnet_rtr_lsa_hdr
01334 {
01335     u_int16_t rtr_flags;      /* set to help describe packet */
01336 #define LIBNET_RTR_FLAGS_W  0x0100  /* W bit */
01337 #define LIBNET_RTR_FLAGS_E  0x0200  /* E bit */
01338 #define LIBNET_RTR_FLAGS_B  0x0400  /* B bit */
01339     u_int16_t rtr_num;        /* number of links within that packet */
01340     u_int rtr_link_id;      /* describes link_data (look below) */
01341 #define LIBNET_LINK_ID_NBR_ID   1   /* Neighbors router ID, also can be 4 */
01342 #define LIBNET_LINK_ID_IP_DES   2   /* IP address of designated router */
01343 #define LIBNET_LINK_ID_SUB      3   /* IP subnet number */
01344     u_int rtr_link_data;    /* Depending on link_id, info is here */
01345     u_int8_t rtr_type;        /* Description of router link */
01346 #define LIBNET_RTR_TYPE_PTP     1   /* Point-To-Point */
01347 #define LIBNET_RTR_TYPE_TRANS   2   /* Connection to a "transit network" */
01348 #define LIBNET_RTR_TYPE_STUB    3   /* Connectin to a "stub network" */
01349 #define RTR_TYPE_VRTL   4   /* connects to a "virtual link" */
01350     u_int8_t rtr_tos_num;     /* number of different TOS metrics for this link */
01351     u_int16_t rtr_metric;     /* the "cost" of using this link */
01352 };
01353 
01354 
01355 /*
01356  *  Network LSA data format.
01357  */
01358 struct libnet_net_lsa_hdr
01359 {
01360     struct in_addr net_nmask;   /* Netmask for that network */
01361     u_int  net_rtr_id;          /* ID of router attached to that network */
01362 };
01363  
01364  
01365 /*
01366  *  Summary LSA data format.
01367  */
01368 struct libnet_sum_lsa_hdr
01369 {
01370     struct in_addr sum_nmask;   /* Netmask of destination IP address */
01371     u_int  sum_metric;          /* Same as in rtr_lsa (&0xfff to use last 24bit */
01372     u_int  sum_tos_metric;      /* first 8bits are TOS, 24bits are TOS Metric */
01373 };
01374  
01375  
01376 /*
01377  *  AS External LSA data format.
01378  *  & 0xfff logic operator for as_metric to get last 24bits.
01379  */
01380 struct libnet_as_lsa_hdr
01381 {
01382     struct in_addr as_nmask;    /* Netmask for advertised destination */
01383     u_int  as_metric;           /* May have to set E bit in first 8bits */
01384 #define LIBNET_AS_E_BIT_ON 0x80000000  /* as_metric */
01385     struct in_addr as_fwd_addr; /* Forwarding address */
01386     u_int  as_rte_tag;          /* External route tag */
01387 };
01388 
01389 
01390 /*
01391  *  Base RIP header
01392  *  Routing Information Protocol
01393  *  Base header size: 24 bytes
01394  */
01395 struct libnet_rip_hdr
01396 {
01397     u_int8_t rip_cmd;         /* RIP command */
01398 #define RIPCMD_REQUEST   1  /* want info */
01399 #define RIPCMD_RESPONSE  2  /* responding to request */
01400 #define RIPCMD_TRACEON   3  /* turn tracing on */
01401 #define RIPCMD_TRACEOFF  4  /* turn it off */
01402 #define RIPCMD_POLL      5  /* like request, but anyone answers */
01403 #define RIPCMD_POLLENTRY 6  /* like poll, but for entire entry */
01404 #define RIPCMD_MAX       7  /* ? command */
01405     u_int8_t rip_ver;         /* RIP version */
01406 #define RIPVER_0         0
01407 #define RIPVER_1         1
01408 #define RIPVER_2         2
01409     u_int16_t rip_rd;         /* Zero (v1) or Routing Domain (v2) */
01410     u_int16_t rip_af;         /* Address family */
01411     u_int16_t rip_rt;         /* Zero (v1) or Route Tag (v2) */
01412     u_int32_t rip_addr;        /* IP address */
01413     u_int32_t rip_mask;        /* Zero (v1) or Subnet Mask (v2) */
01414     u_int32_t rip_next_hop;    /* Zero (v1) or Next hop IP address (v2) */
01415     u_int32_t rip_metric;      /* Metric */
01416 };
01417 
01418 /*
01419  *  RPC headers
01420  *  Remote Procedure Call
01421  */
01422 #define LIBNET_RPC_CALL  0
01423 #define LIBNET_RPC_REPLY 1
01424 #define LIBNET_RPC_VERS  2
01425 #define LIBNET_RPC_LAST_FRAG 0x80000000
01426 
01427 /*
01428  *  Portmap defines
01429  */
01430 #define LIBNET_PMAP_PROGRAM          100000
01431 #define LIBNET_PMAP_PROC_NULL        0
01432 #define LIBNET_PMAP_PROC_SET         1
01433 #define LIBNET_PMAP_PROC_UNSET       2
01434 #define LIBNET_PMAP_PROC_GETADDR     3
01435 #define LIBNET_PMAP_PROC_DUMP        4
01436 #define LIBNET_PMAP_PROC_CALLIT      5
01437 #define LIBNET_PMAP_PROC_BCAST       5 /* Not a typo */
01438 #define LIBNET_PMAP_PROC_GETTIME     6
01439 #define LIBNET_PMAP_PROC_UADDR2TADDR 7
01440 #define LIBNET_PMAP_PROC_TADDR2UADDR 8
01441 #define LIBNET_PMAP_PROC_GETVERSADDR 9
01442 #define LIBNET_PMAP_PROC_INDIRECT    10
01443 #define LIBNET_PMAP_PROC_GETADDRLIST 11
01444 #define LIBNET_PMAP_PROC_GETSTAT     12
01445 
01446 /* There will be more to add... */
01447 
01448 struct libnet_rpc_opaque_auth
01449 {
01450     u_int32_t rpc_auth_flavor;
01451     u_int32_t rpc_auth_length;
01452 //    u_int8_t *rpc_auth_data;
01453 };
01454 
01455 struct libnet_rpc_call
01456 {
01457     u_int32_t rpc_rpcvers;   /* RPC version - must be 2 */
01458     u_int32_t rpc_prognum;   /* Program Number */
01459     u_int32_t rpc_vers;      /* Program Version */
01460     u_int32_t rpc_procedure; /* RPC procedure */
01461     struct libnet_rpc_opaque_auth rpc_credentials;
01462     struct libnet_rpc_opaque_auth rpc_verifier;
01463 };
01464 
01465 struct libnet_rpc_call_hdr
01466 {
01467     u_int32_t rpc_xid;  /* xid (transaction identifier) */
01468     u_int32_t rpc_type;
01469     struct libnet_rpc_call  rpc_call;
01470 };
01471 
01472 struct libnet_rpc_call_tcp_hdr
01473 {
01474     u_int32_t rpc_record_marking; /* used with byte stream protocols */
01475     struct libnet_rpc_call_hdr rpc_common;
01476 };
01477 
01478 /*
01479  *  STP configuration header
01480  *  Spanning Tree Protocol
01481  *  Static header size: 35 bytes
01482  */
01483 struct libnet_stp_conf_hdr
01484 {
01485     u_int16_t stp_id;         /* protocol id */
01486     u_int8_t stp_version;     /* protocol version */
01487     u_int8_t stp_bpdu_type;   /* bridge protocol data unit type */
01488     u_int8_t stp_flags;       /* control flags */
01489     u_int8_t stp_rootid[8];   /* root id */
01490     u_int32_t stp_rootpc;      /* root path cost */
01491     u_int8_t stp_bridgeid[8]; /* bridge id */
01492     u_int16_t stp_portid;     /* port id */
01493     u_int16_t stp_mage;       /* message age */
01494     u_int16_t stp_maxage;     /* max age */
01495     u_int16_t stp_hellot;     /* hello time */
01496     u_int16_t stp_fdelay;     /* forward delay */
01497 };
01498 
01499 
01500 /*
01501  *  STP topology change notification header
01502  *  Spanning Tree Protocol
01503  *  Static header size: 4 bytes
01504  */
01505 struct libnet_stp_tcn_hdr
01506 {
01507     u_int16_t stp_id;         /* protocol id */
01508     u_int8_t stp_version;     /* protocol version */
01509     u_int8_t stp_bpdu_type;   /* bridge protocol data unit type */
01510 };
01511 
01512 
01513 /*
01514  *  TCP header
01515  *  Transmission Control Protocol
01516  *  Static header size: 20 bytes
01517  */
01518 struct libnet_tcp_hdr
01519 {
01520     u_int16_t th_sport;       /* source port */
01521     u_int16_t th_dport;       /* destination port */
01522     u_int32_t th_seq;          /* sequence number */
01523     u_int32_t th_ack;          /* acknowledgement number */
01524 #if (LIBNET_LIL_ENDIAN)
01525     u_int8_t th_x2:4,         /* (unused) */
01526            th_off:4;        /* data offset */
01527 #endif
01528 #if (LIBNET_BIG_ENDIAN)
01529     u_int8_t th_off:4,        /* data offset */
01530            th_x2:4;         /* (unused) */
01531 #endif
01532     u_int8_t  th_flags;       /* control flags */
01533 #ifndef TH_FIN
01534 #define TH_FIN    0x01      /* finished send data */
01535 #endif
01536 #ifndef TH_SYN
01537 #define TH_SYN    0x02      /* synchronize sequence numbers */
01538 #endif
01539 #ifndef TH_RST
01540 #define TH_RST    0x04      /* reset the connection */
01541 #endif
01542 #ifndef TH_PUSH
01543 #define TH_PUSH   0x08      /* push data to the app layer */
01544 #endif
01545 #ifndef TH_ACK
01546 #define TH_ACK    0x10      /* acknowledge */
01547 #endif
01548 #ifndef TH_URG
01549 #define TH_URG    0x20      /* urgent! */
01550 #endif
01551 #ifndef TH_ECE
01552 #define TH_ECE    0x40
01553 #endif
01554 #ifndef TH_CWR   
01555 #define TH_CWR    0x80
01556 #endif
01557     u_int16_t th_win;         /* window */
01558     u_int16_t th_sum;         /* checksum */
01559     u_int16_t th_urp;         /* urgent pointer */
01560 };
01561 
01562 /*
01563  *  Token Ring Header
01564  */
01565 struct libnet_token_ring_hdr
01566 {
01567     u_int8_t  token_ring_access_control;
01568 #define LIBNET_TOKEN_RING_FRAME  0x10
01569     u_int8_t  token_ring_frame_control;
01570 #define LIBNET_TOKEN_RING_LLC_FRAME  0x40
01571     u_int8_t  token_ring_dhost[TOKEN_RING_ADDR_LEN];
01572     u_int8_t  token_ring_shost[TOKEN_RING_ADDR_LEN];
01573     u_int8_t  token_ring_llc_dsap;
01574     u_int8_t  token_ring_llc_ssap;
01575     u_int8_t  token_ring_llc_control_field;
01576     u_int8_t  token_ring_llc_org_code[LIBNET_ORG_CODE_SIZE];
01577     u_int16_t token_ring_type;
01578 #define TOKEN_RING_TYPE_IP            0x0800  /* IP protocol */
01579 #define TOKEN_RING_TYPE_ARP           0x0806  /* addr. resolution protocol */
01580 #define TOKEN_RING_TYPE_REVARP        0x8035  /* reverse addr. resolution protocol */
01581 };
01582 
01583 struct libnet_token_ring_addr
01584 {
01585     u_int8_t  token_ring_addr_octet[6];        /* Token Ring address */
01586 };
01587 
01588 /*
01589  *  UDP header
01590  *  User Data Protocol
01591  *  Static header size: 8 bytes
01592  */
01593 struct libnet_udp_hdr
01594 {
01595     u_int16_t uh_sport;       /* soure port */
01596     u_int16_t uh_dport;       /* destination port */
01597     u_int16_t uh_ulen;        /* length */
01598     u_int16_t uh_sum;         /* checksum */
01599 };
01600 
01601 
01602 /*
01603  *  VRRP header
01604  *  Virtual Router Redundancy Protocol
01605  *  Static header size: 8 bytes
01606  */
01607 #ifndef IPPROTO_VRRP
01608 #define IPPROTO_VRRP 112    /* not everyone's got this */
01609 #endif
01610 struct libnet_vrrp_hdr
01611 {
01612 #if (LIBNET_LIL_ENDIAN)
01613     u_int8_t vrrp_v:4,        /* protocol version */
01614            vrrp_t:4;        /* packet type */
01615 #endif
01616 #if (LIBNET_BIG_ENDIAN)
01617     u_int8_t vrrp_t:4,        /* packet type */
01618            vrrp_v:4;        /* protocol version */
01619 #endif
01620 #define LIBNET_VRRP_VERSION_01  0x1
01621 #define LIBNET_VRRP_VERSION_02  0x2
01622 #define LIBNET_VRRP_TYPE_ADVERT 0x1
01623     u_int8_t vrrp_vrouter_id; /* virtual router id */
01624     u_int8_t vrrp_priority;   /* priority */
01625     u_int8_t vrrp_ip_count;   /* number of IP addresses */
01626     u_int8_t vrrp_auth_type;  /* authorization type */
01627 #define LIBNET_VRRP_AUTH_NONE   0x1
01628 #define LIBNET_VRRP_AUTH_PASSWD 0x2
01629 #define LIBNET_VRRP_AUTH_IPAH   0x3
01630     u_int8_t vrrp_advert_int; /* advertisement interval */
01631     u_int16_t vrrp_sum;       /* checksum */
01632     /* additional addresses */
01633     /* authentication info */
01634 };
01635 
01636 #endif  /* __LIBNET_HEADERS_H */
01637 
01638 /* EOF */

Generated on Fri Jan 16 17:39:57 2004 for libnet by doxygen 1.3.4