tcpr.h 57 KB

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  1. /* $Id$ */
  2. /*
  3. * Copyright (c) 2001-2010 Aaron Turner <aturner at synfin dot net>
  4. * Copyright (c) 2013-2018 Fred Klassen <tcpreplay at appneta dot com> - AppNeta
  5. *
  6. * The Tcpreplay Suite of tools is free software: you can redistribute it
  7. * and/or modify it under the terms of the GNU General Public License as
  8. * published by the Free Software Foundation, either version 3 of the
  9. * License, or with the authors permission any later version.
  10. *
  11. * The Tcpreplay Suite is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with the Tcpreplay Suite. If not, see <http://www.gnu.org/licenses/>.
  18. */
  19. /*
  20. * This header is heavily based off of (in other words basically stolen from)
  21. * libnet 1.1.3's libnet-headers.h. Many thanks to Mike D. Schiffman for doing
  22. * all this work so I basically just needed to do a search and replace to get
  23. * things to work.
  24. */
  25. #ifndef _TCPR_H_
  26. #define _TCPR_H_
  27. #ifdef HAVE_SYS_TYPES_H
  28. #include <sys/types.h>
  29. #endif
  30. #ifdef WIN32
  31. #include "msvc_inttypes.h"
  32. #include "msvc_stdint.h"
  33. #else
  34. #ifdef HAVE_INTTYPES_H
  35. #include <inttypes.h>
  36. #endif
  37. #ifdef HAVE_STDINT_H
  38. #include <stdint.h>
  39. #endif
  40. #endif
  41. #ifdef HAVE_NETINET_IN_H
  42. #include <netinet/in.h>
  43. #endif
  44. #ifdef HAVE_NETINET_IN_SYSTM_H
  45. #include <netinet/in_systm.h>
  46. #endif
  47. #include "config.h"
  48. #define ETHER_ADDR_LEN 0x6
  49. #define FDDI_ADDR_LEN 0x6
  50. #define TOKEN_RING_ADDR_LEN 0x6
  51. #define TCPR_ORG_CODE_SIZE 0x3
  52. /**
  53. * Libnet defines header sizes for every builder function exported.
  54. */
  55. #define TCPR_802_1Q_H 0x12 /**< 802.1Q header: 18 bytes */
  56. #define TCPR_802_1X_H 0x04 /**< 802.1X header: 4 bytes */
  57. #define TCPR_802_2_H 0x03 /**< 802.2 LLC header: 3 bytes */
  58. #define TCPR_802_2SNAP_H 0x08 /**< 802.2 LLC/SNAP header:8 bytes */
  59. #define TCPR_802_3_H 0x0e /**< 802.3 header: 14 bytes */
  60. #define TCPR_ARP_H 0x08 /**< ARP header w/o addrs: 8 bytes */
  61. #define TCPR_ARP_ETH_IP_H 0x1c /**< ARP w/ ETH and IP: 28 bytes */
  62. #define TCPR_BGP4_HEADER_H 0x13 /**< BGP header: 19 bytes */
  63. #define TCPR_BGP4_OPEN_H 0x0a /**< BGP open header: 10 bytes */
  64. #define TCPR_BGP4_UPDATE_H 0x04 /**< BGP open header: 4 bytes */
  65. #define TCPR_BGP4_NOTIFICATION_H 0x02 /**< BGP notif. header: 2 bytes */
  66. #define TCPR_CDP_H 0x08 /**< CDP header base: 8 bytes */
  67. #define TCPR_DHCPV4_H 0xf0 /**< DHCP v4 header: 240 bytes */
  68. #define TCPR_UDP_DNSV4_H 0x0c /**< UDP DNS v4 header: 12 bytes */
  69. #define TCPR_TCP_DNSV4_H 0x0e /**< TCP DNS v4 header: 14 bytes */
  70. #define TCPR_ETH_H 0x0e /**< Ethernet header: 14 bytes */
  71. #define TCPR_ETH_MTU 1500 /**< Ethernet MTU size: 1500 bytes */
  72. #define TCPR_FDDI_H 0x15 /**< FDDI header: 21 bytes */
  73. #define TCPR_ICMPV4_H 0x04 /**< ICMP header base: 4 bytes */
  74. #define TCPR_ICMPV4_ECHO_H 0x08 /**< ICMP_ECHO header: 8 bytes */
  75. #define TCPR_ICMPV4_MASK_H 0x0c /**< ICMP_MASK header: 12 bytes */
  76. #define TCPR_ICMPV4_UNREACH_H 0x08 /**< ICMP_UNREACH header: 8 bytes */
  77. #define TCPR_ICMPV4_TIMXCEED_H 0x08 /**< ICMP_TIMXCEED header: 8 bytes */
  78. #define TCPR_ICMPV4_REDIRECT_H 0x08 /**< ICMP_REDIRECT header: 8 bytes */
  79. #define TCPR_ICMPV4_TS_H 0x14 /**< ICMP_TIMESTAMP headr:20 bytes */
  80. #define TCPR_ICMPV6_H 0x08 /**< ICMP6 header base: 8 bytes */
  81. #define TCPR_IGMP_H 0x08 /**< IGMP header: 8 bytes */
  82. #define TCPR_IPV4_H 0x14 /**< IPv4 header: 20 bytes */
  83. #define TCPR_IPV6_H 0x28 /**< IPv6 header: 40 bytes */
  84. #define TCPR_IPV6_FRAG_H 0x08 /**< IPv6 frag header: 8 bytes */
  85. #define TCPR_IPV6_ROUTING_H 0x04 /**< IPv6 frag header base:4 bytes */
  86. #define TCPR_IPV6_DESTOPTS_H 0x02 /**< IPv6 dest opts base: 2 bytes */
  87. #define TCPR_IPV6_HBHOPTS_H 0x02 /**< IPv6 hop/hop opt base:2 bytes */
  88. #define TCPR_IPSEC_ESP_HDR_H 0x0c /**< IPSEC ESP header: 12 bytes */
  89. #define TCPR_IPSEC_ESP_FTR_H 0x02 /**< IPSEC ESP footer: 2 bytes */
  90. #define TCPR_IPSEC_AH_H 0x10 /**< IPSEC AH header: 16 bytes */
  91. #define TCPR_ISL_H 0x1a /**< ISL header: 26 bytes */
  92. #define TCPR_GRE_H 0x04 /**< GRE header: 4 bytes */
  93. #define TCPR_GRE_SRE_H 0x04 /**< GRE SRE header: 4 bytes */
  94. #define TCPR_MPLS_H 0x04 /**< MPLS header: 4 bytes */
  95. #define TCPR_OSPF_H 0x10 /**< OSPF header: 16 bytes */
  96. #define TCPR_OSPF_HELLO_H 0x18 /**< OSPF hello header: 24 bytes */
  97. #define TCPR_OSPF_DBD_H 0x08 /**< OSPF DBD header: 8 bytes */
  98. #define TCPR_OSPF_LSR_H 0x0c /**< OSPF LSR header: 12 bytes */
  99. #define TCPR_OSPF_LSU_H 0x04 /**< OSPF LSU header: 4 bytes */
  100. #define TCPR_OSPF_LSA_H 0x14 /**< OSPF LSA header: 20 bytes */
  101. #define TCPR_OSPF_AUTH_H 0x08 /**< OSPF AUTH header: 8 bytes */
  102. #define TCPR_OSPF_CKSUM 0x10 /**< OSPF CKSUM header: 16 bytes */
  103. #define TCPR_OSPF_LS_RTR_H 0x10 /**< OSPF LS RTR header: 16 bytes */
  104. #define TCPR_OSPF_LS_NET_H 0x08 /**< OSPF LS NET header: 8 bytes */
  105. #define TCPR_OSPF_LS_SUM_H 0x0c /**< OSPF LS SUM header: 12 bytes */
  106. #define TCPR_OSPF_LS_AS_EXT_H 0x10 /**< OSPF LS AS header: 16 bytes */
  107. #define TCPR_NTP_H 0x30 /**< NTP header: 48 bytes */
  108. #define TCPR_RIP_H 0x18 /**< RIP header base: 24 bytes */
  109. #define TCPR_RPC_CALL_H 0x28 /**< RPC header: 40 bytes
  110. * (assuming 8 byte auth header)
  111. */
  112. #define TCPR_RPC_CALL_TCP_H 0x2c /**< RPC header: 44 bytes
  113. * (with record marking)
  114. */
  115. #define TCPR_SEBEK_H 0x30 /* sebek header: 48 bytes */
  116. #define TCPR_STP_CONF_H 0x23 /**< STP conf header: 35 bytes */
  117. #define TCPR_STP_TCN_H 0x04 /**< STP tcn header: 4 bytes */
  118. #define TCPR_TOKEN_RING_H 0x16 /**< Token Ring header: 22 bytes */
  119. #define TCPR_TCP_H 0x14 /**< TCP header: 20 bytes */
  120. #define TCPR_UDP_H 0x08 /**< UDP header: 8 bytes */
  121. #define TCPR_VRRP_H 0x08 /**< VRRP header: 8 bytes */
  122. #define TCPR_HSRP_H 0x14 /**< HSRP header: 8 bytes */
  123. /**
  124. * IEEE 802.1Q (Virtual Local Area Network) VLAN tag
  125. * size: 8 bytes
  126. */
  127. struct tcpr_802_1q_tag
  128. {
  129. uint16_t vlan_tci; /* VLAN TCI */
  130. uint16_t vlan_tpid; /* Next ETH_TYPE */
  131. };
  132. /**
  133. * IEEE 802.1Q (Virtual Local Area Network) VLAN packet header
  134. * size: 8 bytes
  135. */
  136. struct tcpr_802_1q_hdr
  137. {
  138. uint8_t vlan_dhost[ETHER_ADDR_LEN]; /**< destination ethernet address */
  139. uint8_t vlan_shost[ETHER_ADDR_LEN]; /**< source ethernet address */
  140. uint16_t vlan_tpi; /**< tag protocol ID */
  141. uint16_t vlan_priority_c_vid; /**< priority | VLAN ID */
  142. #define TCPR_802_1Q_PRIMASK 0x0007 /**< priority mask */
  143. #define TCPR_802_1Q_CFIMASK 0x0001 /**< CFI mask */
  144. #define TCPR_802_1Q_VIDMASK 0x0fff /**< vid mask */
  145. uint16_t vlan_len; /**< length or type (802.3 / Eth 2) */
  146. };
  147. /**
  148. * IEEE 802.1X EAP (Extensible Authentication Protocol) header, static header
  149. * size: 4 bytes
  150. */
  151. struct tcpr_802_1x_hdr
  152. {
  153. uint8_t dot1x_version; /**< protocol version */
  154. uint8_t dot1x_type; /**< frame type */
  155. #define TCPR_802_1X_PACKET 0x00 /**< 802.1x packet */
  156. #define TCPR_802_1X_START 0x01 /**< 802.1x start */
  157. #define TCPR_802_1X_LOGOFF 0x02 /**< 802.1x logoff */
  158. #define TCPR_802_1X_KEY 0x03 /**< 802.1x key */
  159. #define TCPR_802_1X_ENCASFAL 0x04 /**< 802.1x encasfal */
  160. uint16_t dot1x_length; /**< total frame length */
  161. };
  162. /*
  163. * IEEE 802.2 LLC header
  164. * Link Layer Control
  165. * static header size: 4 bytes
  166. */
  167. struct tcpr_802_2_hdr
  168. {
  169. uint8_t llc_dsap; /* destination service access point */
  170. uint8_t llc_ssap; /* source service access point */
  171. #define TCPR_SAP_STP 0x42
  172. #define TCPR_SAP_SNAP 0xaa
  173. uint16_t llc_control; /* control field */
  174. };
  175. /*
  176. * IEEE 802.2 LLC/SNAP header
  177. * SubNetwork Attachment Point
  178. * static header size: 8 bytes
  179. */
  180. struct tcpr_802_2snap_hdr
  181. {
  182. uint8_t snap_dsap; /* destination service access point */
  183. uint8_t snap_ssap; /* destination service access point */
  184. uint8_t snap_control; /* control field */
  185. uint8_t snap_oui[3]; /* OUI */
  186. uint16_t snap_type; /* type */
  187. };
  188. /*
  189. * 802.3 header
  190. * IEEE Ethernet
  191. * Static header size: 14 bytes
  192. */
  193. struct tcpr_802_3_hdr
  194. {
  195. uint8_t _802_3_dhost[ETHER_ADDR_LEN];/* destination ethernet address */
  196. uint8_t _802_3_shost[ETHER_ADDR_LEN];/* source ethernet address */
  197. uint16_t _802_3_len; /* packet type ID */
  198. };
  199. /*
  200. * ARP header
  201. * Address Resolution Protocol
  202. * Base header size: 8 bytes
  203. */
  204. struct tcpr_arp_hdr
  205. {
  206. uint16_t ar_hrd; /* format of hardware address */
  207. #define ARPHRD_NETROM 0 /* from KA9Q: NET/ROM pseudo */
  208. #define ARPHRD_ETHER 1 /* Ethernet 10Mbps */
  209. #define ARPHRD_EETHER 2 /* Experimental Ethernet */
  210. #define ARPHRD_AX25 3 /* AX.25 Level 2 */
  211. #define ARPHRD_PRONET 4 /* PROnet token ring */
  212. #define ARPHRD_CHAOS 5 /* Chaosnet */
  213. #define ARPHRD_IEEE802 6 /* IEEE 802.2 Ethernet/TR/TB */
  214. #define ARPHRD_ARCNET 7 /* ARCnet */
  215. #define ARPHRD_APPLETLK 8 /* APPLEtalk */
  216. #define ARPHRD_LANSTAR 9 /* Lanstar */
  217. #define ARPHRD_DLCI 15 /* Frame Relay DLCI */
  218. #define ARPHRD_ATM 19 /* ATM */
  219. #define ARPHRD_METRICOM 23 /* Metricom STRIP (new IANA id) */
  220. #define ARPHRD_IPSEC 31 /* IPsec tunnel */
  221. #define ARPHRD_LOOPBACK 772 /* Loopback device */
  222. uint16_t ar_pro; /* format of protocol address */
  223. uint8_t ar_hln; /* length of hardware address */
  224. uint8_t ar_pln; /* length of protocol address */
  225. uint16_t ar_op; /* operation type */
  226. #define ARPOP_REQUEST 1 /* req to resolve address */
  227. #define ARPOP_REPLY 2 /* resp to previous request */
  228. #define ARPOP_REVREQUEST 3 /* req protocol address given hardware */
  229. #define ARPOP_REVREPLY 4 /* resp giving protocol address */
  230. #define ARPOP_INVREQUEST 8 /* req to identify peer */
  231. #define ARPOP_INVREPLY 9 /* resp identifying peer */
  232. /* address information allocated dynamically */
  233. };
  234. /*
  235. * BGP4 header
  236. * Border Gateway Protocol 4
  237. * Base header size : 19 bytes
  238. */
  239. struct tcpr_bgp4_header_hdr
  240. {
  241. #define TCPR_BGP4_MARKER_SIZE 16
  242. uint8_t marker[TCPR_BGP4_MARKER_SIZE];
  243. uint16_t len;
  244. uint8_t type;
  245. #define TCPR_BGP4_OPEN 1
  246. #define TCPR_BGP4_UPDATE 2
  247. #define TCPR_BGP4_NOTIFICATION 3
  248. #define TCPR_BGP4_KEEPALIVE 4
  249. };
  250. /*
  251. * BGP4 open header
  252. * Border Gateway Protocol 4
  253. * Base header size : 10 bytes
  254. */
  255. struct tcpr_bgp4_open_hdr
  256. {
  257. uint8_t version;
  258. uint16_t src_as;
  259. uint16_t hold_time;
  260. uint32_t bgp_id;
  261. uint8_t opt_len;
  262. };
  263. /*
  264. * BGP4 notification message
  265. *
  266. * Border Gateway Protocol 4
  267. * Base header size : 2 bytes
  268. *
  269. * Use payload if you need data
  270. */
  271. struct tcpr_bgp4_notification_hdr
  272. {
  273. #define TCPR_BGP4_MESSAGE_HEADER_ERROR 1
  274. #define TCPR_BGP4_OPEN_MESSAGE_ERROR 2
  275. #define TCPR_BGP4_UPDATE_MESSAGE_ERROR 3
  276. #define TCPR_BGP4_HOLD_TIMER_EXPIRED 4
  277. #define TCPR_BGP4_FINITE_STATE__ERROR 5
  278. #define TCPR_BGP4_CEASE 6
  279. uint8_t err_code;
  280. /* Message Header Error subcodes */
  281. #define TCPR_BGP4_CONNECTION_NOT_SYNCHRONIZED 1
  282. #define TCPR_BGP4_BAD_MESSAGE_LENGTH 2
  283. #define TCPR_BGP4_BAD_MESSAGE_TYPE 3
  284. /* OPEN Message Error subcodes */
  285. #define TCPR_BGP4_UNSUPPORTED_VERSION_NUMBER 1
  286. #define TCPR_BGP4_BAD_PEER_AS 2
  287. #define TCPR_BGP4_BAD_BGP_IDENTIFIER 3
  288. #define TCPR_BGP4_UNSUPPORTED_OPTIONAL_PARAMETER 4
  289. #define TCPR_BGP4_AUTHENTICATION_FAILURE 5
  290. #define TCPR_BGP4_UNACCEPTABLE_HOLD_TIME 6
  291. /* UPDATE Message Error subcodes */
  292. #define TCPR_BGP4_MALFORMED_ATTRIBUTE_LIST
  293. #define TCPR_BGP4_UNRECOGNIZED_WELL_KNOWN_ATTRIBUTE
  294. #define TCPR_BGP4_MISSING_WELL_KNOWN_ATTRIBUTE
  295. #define TCPR_BGP4_ATTRIBUTE_FLAGS_ERROR
  296. #define TCPR_BGP4_ATTRIBUTE_LENGTH_ERROR
  297. #define TCPR_BGP4_INVALID_ORIGIN_ATTRIBUTE
  298. #define TCPR_BGP4_AS_ROUTING_LOOP
  299. #define TCPR_BGP4_INVALID_NEXT_HOP_ATTRIBUTE
  300. #define TCPR_BGP4_OPTIONAL_ATTRIBUTE_ERROR
  301. #define TCPR_BGP4_INVALID_NETWORK_FIELD
  302. #define TCPR_BGP4_MALFORMED_AS_PATH
  303. uint8_t err_subcode;
  304. };
  305. /*
  306. * CDP header
  307. * Cisco Discovery Protocol
  308. * Base header size: 8 bytes
  309. */
  310. /*
  311. * For checksum stuff -- IANA says 135-254 is "unassigned" as of 12.2001.
  312. * Let's hope this one stays that way for a while!
  313. */
  314. #define TCPR_PROTO_CDP 200
  315. struct tcpr_cdp_hdr
  316. {
  317. uint8_t cdp_version; /* version (should always be 0x01) */
  318. uint8_t cdp_ttl; /* time receiver should hold info in this packet */
  319. uint16_t cdp_sum; /* checksum */
  320. uint16_t cdp_type; /* type */
  321. #define TCPR_CDP_DEVID 0x1 /* device id */
  322. #define TCPR_CDP_ADDRESS 0x2 /* address */
  323. #define TCPR_CDP_PORTID 0x3 /* port id */
  324. #define TCPR_CDP_CAPABIL 0x4 /* capabilities */
  325. #define TCPR_CDP_VERSION 0x5 /* version */
  326. #define TCPR_CDP_PLATFORM 0x6 /* platform */
  327. #define TCPR_CDP_IPPREFIX 0x7 /* ip prefix */
  328. uint16_t cdp_len; /* type + length + value */
  329. /* value information done dynamically */
  330. /* CDP capabilities */
  331. #define TCPR_CDP_CAP_L3R 0x01/* performs level 3 routing */
  332. #define TCPR_CDP_CAP_L2B 0x02/* performs level 2 transparent bridging */
  333. #define TCPR_CDP_CAP_L2SRB 0x04/* performs level 2 sourceroute bridging */
  334. #define TCPR_CDP_CAP_L2S 0x08/* performs level 2 switching */
  335. #define TCPR_CDP_CAP_SR 0x10/* sends and receives packets on a network */
  336. #define TCPR_CDP_CAP_NOI 0x20/* does not forward IGMP on non-router ports */
  337. #define TCPR_CDP_CAP_L1F 0x40/* provides level 1 functionality */
  338. };
  339. /*
  340. * Used as an overlay for type/len/values
  341. */
  342. struct tcpr_cdp_value_hdr
  343. {
  344. uint16_t cdp_type;
  345. uint16_t cdp_len;
  346. };
  347. /*
  348. * DHCP header
  349. * Dynamic Host Configuration Protocol
  350. * Static header size: f0 bytes
  351. */
  352. struct tcpr_dhcpv4_hdr
  353. {
  354. uint8_t dhcp_opcode; /* opcode */
  355. #define TCPR_DHCP_REQUEST 0x1
  356. #define TCPR_DHCP_REPLY 0x2
  357. uint8_t dhcp_htype; /* hardware address type */
  358. uint8_t dhcp_hlen; /* hardware address length */
  359. uint8_t dhcp_hopcount; /* used by proxy servers */
  360. uint32_t dhcp_xid; /* transaction ID */
  361. uint16_t dhcp_secs; /* number of seconds since trying to bootstrap */
  362. uint16_t dhcp_flags; /* flags for DHCP, unused for BOOTP */
  363. uint32_t dhcp_cip; /* client's IP */
  364. uint32_t dhcp_yip; /* your IP */
  365. uint32_t dhcp_sip; /* server's IP */
  366. uint32_t dhcp_gip; /* gateway IP */
  367. uint8_t dhcp_chaddr[16]; /* client hardware address */
  368. uint8_t dhcp_sname[64]; /* server host name */
  369. uint8_t dhcp_file[128]; /* boot file name */
  370. uint32_t dhcp_magic; /* BOOTP magic header */
  371. #define DHCP_MAGIC 0x63825363
  372. #define TCPR_BOOTP_MIN_LEN 0x12c
  373. #define TCPR_DHCP_PAD 0x00
  374. #define TCPR_DHCP_SUBNETMASK 0x01
  375. #define TCPR_DHCP_TIMEOFFSET 0x02
  376. #define TCPR_DHCP_ROUTER 0x03
  377. #define TCPR_DHCP_TIMESERVER 0x04
  378. #define TCPR_DHCP_NAMESERVER 0x05
  379. #define TCPR_DHCP_DNS 0x06
  380. #define TCPR_DHCP_LOGSERV 0x07
  381. #define TCPR_DHCP_COOKIESERV 0x08
  382. #define TCPR_DHCP_LPRSERV 0x09
  383. #define TCPR_DHCP_IMPSERV 0x0a
  384. #define TCPR_DHCP_RESSERV 0x0b
  385. #define TCPR_DHCP_HOSTNAME 0x0c
  386. #define TCPR_DHCP_BOOTFILESIZE 0x0d
  387. #define TCPR_DHCP_DUMPFILE 0x0e
  388. #define TCPR_DHCP_DOMAINNAME 0x0f
  389. #define TCPR_DHCP_SWAPSERV 0x10
  390. #define TCPR_DHCP_ROOTPATH 0x11
  391. #define TCPR_DHCP_EXTENPATH 0x12
  392. #define TCPR_DHCP_IPFORWARD 0x13
  393. #define TCPR_DHCP_SRCROUTE 0x14
  394. #define TCPR_DHCP_POLICYFILTER 0x15
  395. #define TCPR_DHCP_MAXASMSIZE 0x16
  396. #define TCPR_DHCP_IPTTL 0x17
  397. #define TCPR_DHCP_MTUTIMEOUT 0x18
  398. #define TCPR_DHCP_MTUTABLE 0x19
  399. #define TCPR_DHCP_MTUSIZE 0x1a
  400. #define TCPR_DHCP_LOCALSUBNETS 0x1b
  401. #define TCPR_DHCP_BROADCASTADDR 0x1c
  402. #define TCPR_DHCP_DOMASKDISCOV 0x1d
  403. #define TCPR_DHCP_MASKSUPPLY 0x1e
  404. #define TCPR_DHCP_DOROUTEDISC 0x1f
  405. #define TCPR_DHCP_ROUTERSOLICIT 0x20
  406. #define TCPR_DHCP_STATICROUTE 0x21
  407. #define TCPR_DHCP_TRAILERENCAP 0x22
  408. #define TCPR_DHCP_ARPTIMEOUT 0x23
  409. #define TCPR_DHCP_ETHERENCAP 0x24
  410. #define TCPR_DHCP_TCPTTL 0x25
  411. #define TCPR_DHCP_TCPKEEPALIVE 0x26
  412. #define TCPR_DHCP_TCPALIVEGARBAGE 0x27
  413. #define TCPR_DHCP_NISDOMAIN 0x28
  414. #define TCPR_DHCP_NISSERVERS 0x29
  415. #define TCPR_DHCP_NISTIMESERV 0x2a
  416. #define TCPR_DHCP_VENDSPECIFIC 0x2b
  417. #define TCPR_DHCP_NBNS 0x2c
  418. #define TCPR_DHCP_NBDD 0x2d
  419. #define TCPR_DHCP_NBTCPIP 0x2e
  420. #define TCPR_DHCP_NBTCPSCOPE 0x2f
  421. #define TCPR_DHCP_XFONT 0x30
  422. #define TCPR_DHCP_XDISPLAYMGR 0x31
  423. #define TCPR_DHCP_DISCOVERADDR 0x32
  424. #define TCPR_DHCP_LEASETIME 0x33
  425. #define TCPR_DHCP_OPTIONOVERLOAD 0x34
  426. #define TCPR_DHCP_MESSAGETYPE 0x35
  427. #define TCPR_DHCP_SERVIDENT 0x36
  428. #define TCPR_DHCP_PARAMREQUEST 0x37
  429. #define TCPR_DHCP_MESSAGE 0x38
  430. #define TCPR_DHCP_MAXMSGSIZE 0x39
  431. #define TCPR_DHCP_RENEWTIME 0x3a
  432. #define TCPR_DHCP_REBINDTIME 0x3b
  433. #define TCPR_DHCP_CLASSSID 0x3c
  434. #define TCPR_DHCP_CLIENTID 0x3d
  435. #define TCPR_DHCP_NISPLUSDOMAIN 0x40
  436. #define TCPR_DHCP_NISPLUSSERVERS 0x41
  437. #define TCPR_DHCP_MOBILEIPAGENT 0x44
  438. #define TCPR_DHCP_SMTPSERVER 0x45
  439. #define TCPR_DHCP_POP3SERVER 0x46
  440. #define TCPR_DHCP_NNTPSERVER 0x47
  441. #define TCPR_DHCP_WWWSERVER 0x48
  442. #define TCPR_DHCP_FINGERSERVER 0x49
  443. #define TCPR_DHCP_IRCSERVER 0x4a
  444. #define TCPR_DHCP_STSERVER 0x4b
  445. #define TCPR_DHCP_STDASERVER 0x4c
  446. #define TCPR_DHCP_END 0xff
  447. #define TCPR_DHCP_MSGDISCOVER 0x01
  448. #define TCPR_DHCP_MSGOFFER 0x02
  449. #define TCPR_DHCP_MSGREQUEST 0x03
  450. #define TCPR_DHCP_MSGDECLINE 0x04
  451. #define TCPR_DHCP_MSGACK 0x05
  452. #define TCPR_DHCP_MSGNACK 0x06
  453. #define TCPR_DHCP_MSGRELEASE 0x07
  454. #define TCPR_DHCP_MSGINFORM 0x08
  455. };
  456. /*
  457. * Base DNSv4 header
  458. * Domain Name System
  459. * Base header size: 12/14 bytes
  460. */
  461. struct tcpr_dnsv4_hdr
  462. {
  463. uint16_t h_len; /* length of the packet - only used with TCP */
  464. uint16_t id; /* DNS packet ID */
  465. uint16_t flags; /* DNS flags */
  466. uint16_t num_q; /* Number of questions */
  467. uint16_t num_answ_rr; /* Number of answer resource records */
  468. uint16_t num_auth_rr; /* Number of authority resource records */
  469. uint16_t num_addi_rr; /* Number of additional resource records */
  470. };
  471. #define TCPR_DNS_H TCPR_UDP_DNSV4_H
  472. struct tcpr_dnsv4udp_hdr
  473. {
  474. uint16_t id; /* DNS packet ID */
  475. uint16_t flags; /* DNS flags */
  476. uint16_t num_q; /* Number of questions */
  477. uint16_t num_answ_rr; /* Number of answer resource records */
  478. uint16_t num_auth_rr; /* Number of authority resource records */
  479. uint16_t num_addi_rr; /* Number of additional resource records */
  480. };
  481. /*
  482. * PPP over Serial with HDLC encapsulation for NetBSD
  483. */
  484. struct tcpr_pppserial_hdr
  485. {
  486. uint8_t address;
  487. uint8_t control;
  488. uint16_t protocol;
  489. };
  490. /*
  491. * Ethernet II header
  492. * Static header size: 14 bytes
  493. */
  494. struct tcpr_ethernet_hdr
  495. {
  496. uint8_t ether_dhost[ETHER_ADDR_LEN];/* destination ethernet address */
  497. uint8_t ether_shost[ETHER_ADDR_LEN];/* source ethernet address */
  498. uint16_t ether_type; /* protocol */
  499. };
  500. #ifndef ETHERTYPE_PUP
  501. #define ETHERTYPE_PUP 0x0200 /* PUP protocol */
  502. #endif
  503. #ifndef ETHERTYPE_IP
  504. #define ETHERTYPE_IP 0x0800 /* IP protocol */
  505. #endif
  506. #ifndef ETHERTYPE_ARP
  507. #define ETHERTYPE_ARP 0x0806 /* addr. resolution protocol */
  508. #endif
  509. #ifndef ETHERTYPE_REVARP
  510. #define ETHERTYPE_REVARP 0x8035 /* reverse addr. resolution protocol */
  511. #endif
  512. #ifndef ETHERTYPE_VLAN
  513. #define ETHERTYPE_VLAN 0x8100 /* IEEE 802.1Q VLAN tagging */
  514. #endif
  515. #ifndef ETHERTYPE_EAP
  516. #define ETHERTYPE_EAP 0x888e /* IEEE 802.1X EAP authentication */
  517. #endif
  518. #ifndef ETHERTYPE_MPLS
  519. #define ETHERTYPE_MPLS 0x8847 /* MPLS */
  520. #endif
  521. #ifndef ETHERTYPE_LOOPBACK
  522. #define ETHERTYPE_LOOPBACK 0x9000 /* used to test interfaces */
  523. #endif
  524. #ifndef ETHERTYPE_IP6
  525. #define ETHERTYPE_IP6 0x86DD /* IPv6 */
  526. #endif
  527. struct tcpr_ether_addr
  528. {
  529. uint8_t ether_addr_octet[6]; /* Ethernet address */
  530. };
  531. /*
  532. * Fiber Distributed Data Interface header
  533. *
  534. * Static header size: 21 bytes (LLC and 48-bit address addr only)
  535. *
  536. * Note: Organization field is 3 bytes which throws off the
  537. * alignment of type. Therefore fddi_type (19 bytes in)
  538. * is specified as two uint8_ts.
  539. */
  540. struct tcpr_fddi_hdr
  541. {
  542. uint8_t fddi_frame_control; /* Class/Format/Priority */
  543. #define TCPR_FDDI_LLC_FRAME 0x10
  544. #define TCPR_FDDI_48BIT_ADDR 0x40
  545. #define TCPR_FDDI_FC_REQD TCPR_FDDI_LLC_FRAME | TCPR_FDDI_48BIT_ADDR
  546. uint8_t fddi_dhost[FDDI_ADDR_LEN]; /* destination fddi address */
  547. uint8_t fddi_shost[FDDI_ADDR_LEN]; /* source fddi address */
  548. uint8_t fddi_llc_dsap; /* DSAP */
  549. uint8_t fddi_llc_ssap; /* SSAP */
  550. uint8_t fddi_llc_control_field; /* Class/Format/Priority */
  551. uint8_t fddi_llc_org_code[TCPR_ORG_CODE_SIZE]; /* Organization Code 3-bytes */
  552. uint8_t fddi_type; /* Protocol Type */
  553. uint8_t fddi_type1; /* see note above. */
  554. #define FDDI_TYPE_IP 0x0800 /* IP protocol */
  555. #define FDDI_TYPE_ARP 0x0806 /* addr. resolution protocol */
  556. #define FDDI_TYPE_REVARP 0x8035 /* reverse addr. resolution protocol */
  557. };
  558. struct tcpr_fddi_addr
  559. {
  560. uint8_t fddi_addr_octet[6]; /* FDDI address */
  561. };
  562. /*
  563. * GRE header - RFC 1701 & 2637
  564. * Generic Routing Encapsulation (GRE)
  565. * Base header size: 4 bytes
  566. */
  567. struct tcpr_gre_hdr
  568. {
  569. uint16_t flags_ver;
  570. #define GRE_CSUM 0x8000
  571. #define GRE_ROUTING 0x4000
  572. #define GRE_KEY 0x2000
  573. #define GRE_SEQ 0x1000
  574. #define GRE_STRICT 0x0800
  575. #define GRE_REC 0x0700
  576. #define GRE_ACK 0x0080
  577. #define GRE_FLAGS_MASK 0x00F8
  578. #define GRE_VERSION_MASK 0x0007
  579. #define GRE_VERSION_0 0x0000
  580. #define GRE_VERSION_1 0x0001
  581. uint16_t type;
  582. #define GRE_SNA 0x0004
  583. #define GRE_OSI_NETWORK_LAYER 0x00FE
  584. #define GRE_PUP 0x0200
  585. #define GRE_XNS 0x0600
  586. #define GRE_IP 0x0800
  587. #define GRE_CHAOS 0x0804
  588. #define GRE_RFC_826_ARP 0x0806
  589. #define GRE_FRAME_RELAY_ARP 0x0808
  590. #define GRE_VINES 0x0BAD
  591. #define GRE_VINES_ECHO 0x0BAE
  592. #define GRE_VINES_LOOPBACK 0x0BAF
  593. #define GRE_DECNET 0x6003
  594. #define GRE_TRANSPARENT_ETHERNET_BRIDGING 0x6558
  595. #define GRE_RAW_FRAME_RELAY 0x6559
  596. #define GRE_APOLLO_DOMAIN 0x8019
  597. #define GRE_ETHERTALK 0x809B
  598. #define GRE_NOVELL_IPX 0x8137
  599. #define GRE_RFC_1144_TCP_IP_COMPRESSION 0x876B
  600. #define GRE_IP_AUTONOMOUS_SYSTEMS 0x876C
  601. #define GRE_SECURE_DATA 0x876D
  602. #define GRE_PPP 0x880b /* taken from RFC 2637 */
  603. union {
  604. struct {
  605. uint16_t sum; /* optional */
  606. uint16_t offset; /* optional */
  607. uint32_t key; /* optional */
  608. uint32_t seq; /* optional */
  609. } _gre;
  610. struct {
  611. uint16_t payload_s; /* optional */
  612. uint16_t callID; /* optional */
  613. uint32_t seq; /* optional */
  614. uint32_t ack; /* optional */
  615. } _egre;
  616. }_data;
  617. #define gre_sum _data._gre.sum
  618. #define gre_offset _data._gre.offset
  619. #define gre_key _data._gre.key
  620. #define gre_seq _data._gre.seq
  621. #define egre_payload_s _data._egre.payload_s
  622. #define egre_callID _data._egre.callID
  623. #define egre_seq _data._egre.seq
  624. #define egre_ack _data._egre.ack
  625. };
  626. #ifndef IPPROTO_GRE
  627. #define IPPROTO_GRE 47
  628. #endif
  629. /*
  630. * Source Route Entries (SRE)
  631. * This is used for GRE as the Routing field is a list of SREs - RFC 1701
  632. * Base header size: 4 bytes
  633. */
  634. struct tcpr_gre_sre_hdr
  635. {
  636. uint16_t af; /* address family */
  637. uint8_t sre_offset;
  638. uint8_t sre_length;
  639. uint8_t *routing;
  640. };
  641. /*
  642. * IPv4 header
  643. * Internet Protocol, version 4
  644. * Static header size: 20 bytes
  645. */
  646. struct tcpr_ipv4_hdr
  647. {
  648. #ifdef WORDS_BIGENDIAN
  649. uint8_t ip_v:4, /* version */
  650. ip_hl:4; /* header length */
  651. #else
  652. uint8_t ip_hl:4, /* header length */
  653. ip_v:4; /* version */
  654. #endif
  655. uint8_t ip_tos; /* type of service */
  656. #ifndef IPTOS_LOWDELAY
  657. #define IPTOS_LOWDELAY 0x10
  658. #endif
  659. #ifndef IPTOS_THROUGHPUT
  660. #define IPTOS_THROUGHPUT 0x08
  661. #endif
  662. #ifndef IPTOS_RELIABILITY
  663. #define IPTOS_RELIABILITY 0x04
  664. #endif
  665. #ifndef IPTOS_LOWCOST
  666. #define IPTOS_LOWCOST 0x02
  667. #endif
  668. uint16_t ip_len; /* total length */
  669. uint16_t ip_id; /* identification */
  670. uint16_t ip_off;
  671. #ifndef IP_RF
  672. #define IP_RF 0x8000 /* reserved fragment flag */
  673. #endif
  674. #ifndef IP_DF
  675. #define IP_DF 0x4000 /* don't fragment flag */
  676. #endif
  677. #ifndef IP_MF
  678. #define IP_MF 0x2000 /* more fragments flag */
  679. #endif
  680. #ifndef IP_OFFMASK
  681. #define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
  682. #endif
  683. uint8_t ip_ttl; /* time to live */
  684. uint8_t ip_p; /* protocol */
  685. uint16_t ip_sum; /* checksum */
  686. struct in_addr ip_src, ip_dst; /* source and dest address */
  687. };
  688. /*
  689. * IP options
  690. */
  691. #ifndef IPOPT_EOL
  692. #define IPOPT_EOL 0 /* end of option list */
  693. #endif
  694. #ifndef IPOPT_NOP
  695. #define IPOPT_NOP 1 /* no operation */
  696. #endif
  697. #ifndef IPOPT_RR
  698. #define IPOPT_RR 7 /* record packet route */
  699. #endif
  700. #ifndef IPOPT_TS
  701. #define IPOPT_TS 68 /* timestamp */
  702. #endif
  703. #ifndef IPOPT_SECURITY
  704. #define IPOPT_SECURITY 130 /* provide s,c,h,tcc */
  705. #endif
  706. #ifndef IPOPT_LSRR
  707. #define IPOPT_LSRR 131 /* loose source route */
  708. #endif
  709. #ifndef IPOPT_SATID
  710. #define IPOPT_SATID 136 /* satnet id */
  711. #endif
  712. #ifndef IPOPT_SSRR
  713. #define IPOPT_SSRR 137 /* strict source route */
  714. #endif
  715. struct tcpr_in6_addr
  716. {
  717. union
  718. {
  719. u_int8_t __u6_addr8[16];
  720. u_int16_t __u6_addr16[8];
  721. u_int32_t __u6_addr32[4];
  722. } __u6_addr; /* 128-bit IP6 address */
  723. };
  724. #define tcpr_s6_addr __u6_addr.__u6_addr8
  725. #define tcpr_s6_addr8 __u6_addr.__u6_addr8
  726. #define tcpr_s6_addr16 __u6_addr.__u6_addr16
  727. #define tcpr_s6_addr32 __u6_addr.__u6_addr32
  728. /*
  729. * IPv6 header
  730. * Internet Protocol, version 6
  731. * Static header size: 40 bytes
  732. */
  733. struct tcpr_ipv6_hdr
  734. {
  735. uint8_t ip_flags[4]; /* version, traffic class, flow label */
  736. uint16_t ip_len; /* total length */
  737. uint8_t ip_nh; /* next header */
  738. uint8_t ip_hl; /* hop limit */
  739. struct tcpr_in6_addr ip_src, ip_dst; /* source and dest address */
  740. };
  741. struct tcpr_ipv6_ext_hdr_base
  742. {
  743. uint8_t ip_nh; /* next header */
  744. uint8_t ip_len; /* length of header in 8 octet units (sans 1st) */
  745. /* some more bytes are always here, but we don't know what kind */
  746. };
  747. #define TCPR_IPV6_NH_NO_NEXT 59
  748. #define TCPR_IPV6_NH_IPV6 41
  749. #define TCPR_IPV6_NH_ESP 50
  750. #define TCPR_IPV6_NH_AH 51
  751. /*
  752. * IPv6 frag header
  753. * Internet Protocol, version 6
  754. * Static header size: 8 bytes
  755. */
  756. #define TCPR_IPV6_NH_FRAGMENT 44
  757. struct tcpr_ipv6_frag_hdr
  758. {
  759. uint8_t ip_nh; /* next header */
  760. uint8_t ip_reserved; /* reserved */
  761. uint16_t ip_frag; /* fragmentation stuff */
  762. uint32_t ip_id; /* id */
  763. };
  764. /*
  765. * IPv6 routing header
  766. * Internet Protocol, version 6
  767. * Base header size: 4 bytes
  768. */
  769. #define TCPR_IPV6_NH_ROUTING 43
  770. struct tcpr_ipv6_routing_hdr
  771. {
  772. uint8_t ip_nh; /* next header */
  773. uint8_t ip_len; /* length of header in 8 octet units (sans 1st) */
  774. uint8_t ip_rtype; /* routing type */
  775. uint8_t ip_segments; /* segments left */
  776. /* routing information allocated dynamically */
  777. };
  778. /*
  779. * IPv6 destination options header
  780. * Internet Protocol, version 6
  781. * Base header size: 2 bytes
  782. */
  783. #define TCPR_IPV6_NH_DESTOPTS 60
  784. struct tcpr_ipv6_destopts_hdr
  785. {
  786. uint8_t ip_nh; /* next header */
  787. uint8_t ip_len; /* length of header in 8 octet units (sans 1st) */
  788. /* destination options information allocated dynamically */
  789. };
  790. /*
  791. * IPv6 hop by hop options header
  792. * Internet Protocol, version 6
  793. * Base header size: 2 bytes
  794. */
  795. #define TCPR_IPV6_NH_HBH 0
  796. struct tcpr_ipv6_hbhopts_hdr
  797. {
  798. uint8_t ip_nh; /* next header */
  799. uint8_t ip_len; /* length of header in 8 octet units (sans 1st) */
  800. /* destination options information allocated dynamically */
  801. };
  802. /*
  803. * ICMP6 header
  804. * Internet Control Message Protocol v6
  805. * Base header size: 8 bytes
  806. */
  807. #ifndef IPPROTO_ICMP6
  808. #define IPPROTO_ICMP6 0x3a
  809. #endif
  810. struct tcpr_icmpv6_hdr
  811. {
  812. uint8_t icmp_type; /* ICMP type */
  813. #ifndef ICMP6_ECHO
  814. #define ICMP6_ECHO 128
  815. #endif
  816. #ifndef ICMP6_ECHOREPLY
  817. #define ICMP6_ECHOREPLY 129
  818. #endif
  819. #ifndef ICMP6_UNREACH
  820. #define ICMP6_UNREACH 1
  821. #endif
  822. #ifndef ICMP6_PKTTOOBIG
  823. #define ICMP6_PKTTOOBIG 2
  824. #endif
  825. #ifndef ICMP6_TIMXCEED
  826. #define ICMP6_TIMXCEED 3
  827. #endif
  828. #ifndef ICMP6_PARAMPROB
  829. #define ICMP6_PARAMPROB 4
  830. #endif
  831. uint8_t icmp_code; /* ICMP code */
  832. uint16_t icmp_sum; /* ICMP Checksum */
  833. uint16_t id; /* ICMP id */
  834. uint16_t seq; /* ICMP sequence number */
  835. };
  836. /*
  837. * ICMP header
  838. * Internet Control Message Protocol
  839. * Base header size: 4 bytes
  840. */
  841. struct tcpr_icmpv4_hdr
  842. {
  843. uint8_t icmp_type; /* ICMP type */
  844. #ifndef ICMP_ECHOREPLY
  845. #define ICMP_ECHOREPLY 0
  846. #endif
  847. #ifndef ICMP_UNREACH
  848. #define ICMP_UNREACH 3
  849. #endif
  850. #ifndef ICMP_SOURCEQUENCH
  851. #define ICMP_SOURCEQUENCH 4
  852. #endif
  853. #ifndef ICMP_REDIRECT
  854. #define ICMP_REDIRECT 5
  855. #endif
  856. #ifndef ICMP_ECHO
  857. #define ICMP_ECHO 8
  858. #endif
  859. #ifndef ICMP_ROUTERADVERT
  860. #define ICMP_ROUTERADVERT 9
  861. #endif
  862. #ifndef ICMP_ROUTERSOLICIT
  863. #define ICMP_ROUTERSOLICIT 10
  864. #endif
  865. #ifndef ICMP_TIMXCEED
  866. #define ICMP_TIMXCEED 11
  867. #endif
  868. #ifndef ICMP_PARAMPROB
  869. #define ICMP_PARAMPROB 12
  870. #endif
  871. #ifndef ICMP_TSTAMP
  872. #define ICMP_TSTAMP 13
  873. #endif
  874. #ifndef ICMP_TSTAMPREPLY
  875. #define ICMP_TSTAMPREPLY 14
  876. #endif
  877. #ifndef ICMP_IREQ
  878. #define ICMP_IREQ 15
  879. #endif
  880. #ifndef ICMP_IREQREPLY
  881. #define ICMP_IREQREPLY 16
  882. #endif
  883. #ifndef ICMP_MASKREQ
  884. #define ICMP_MASKREQ 17
  885. #endif
  886. #ifndef ICMP_MASKREPLY
  887. #define ICMP_MASKREPLY 18
  888. #endif
  889. uint8_t icmp_code; /* ICMP code */
  890. #ifndef ICMP_UNREACH_NET
  891. #define ICMP_UNREACH_NET 0
  892. #endif
  893. #ifndef ICMP_UNREACH_HOST
  894. #define ICMP_UNREACH_HOST 1
  895. #endif
  896. #ifndef ICMP_UNREACH_PROTOCOL
  897. #define ICMP_UNREACH_PROTOCOL 2
  898. #endif
  899. #ifndef ICMP_UNREACH_PORT
  900. #define ICMP_UNREACH_PORT 3
  901. #endif
  902. #ifndef ICMP_UNREACH_NEEDFRAG
  903. #define ICMP_UNREACH_NEEDFRAG 4
  904. #endif
  905. #ifndef ICMP_UNREACH_SRCFAIL
  906. #define ICMP_UNREACH_SRCFAIL 5
  907. #endif
  908. #ifndef ICMP_UNREACH_NET_UNKNOWN
  909. #define ICMP_UNREACH_NET_UNKNOWN 6
  910. #endif
  911. #ifndef ICMP_UNREACH_HOST_UNKNOWN
  912. #define ICMP_UNREACH_HOST_UNKNOWN 7
  913. #endif
  914. #ifndef ICMP_UNREACH_ISOLATED
  915. #define ICMP_UNREACH_ISOLATED 8
  916. #endif
  917. #ifndef ICMP_UNREACH_NET_PROHIB
  918. #define ICMP_UNREACH_NET_PROHIB 9
  919. #endif
  920. #ifndef ICMP_UNREACH_HOST_PROHIB
  921. #define ICMP_UNREACH_HOST_PROHIB 10
  922. #endif
  923. #ifndef ICMP_UNREACH_TOSNET
  924. #define ICMP_UNREACH_TOSNET 11
  925. #endif
  926. #ifndef ICMP_UNREACH_TOSHOST
  927. #define ICMP_UNREACH_TOSHOST 12
  928. #endif
  929. #ifndef ICMP_UNREACH_FILTER_PROHIB
  930. #define ICMP_UNREACH_FILTER_PROHIB 13
  931. #endif
  932. #ifndef ICMP_UNREACH_HOST_PRECEDENCE
  933. #define ICMP_UNREACH_HOST_PRECEDENCE 14
  934. #endif
  935. #ifndef ICMP_UNREACH_PRECEDENCE_CUTOFF
  936. #define ICMP_UNREACH_PRECEDENCE_CUTOFF 15
  937. #endif
  938. #ifndef ICMP_REDIRECT_NET
  939. #define ICMP_REDIRECT_NET 0
  940. #endif
  941. #ifndef ICMP_REDIRECT_HOST
  942. #define ICMP_REDIRECT_HOST 1
  943. #endif
  944. #ifndef ICMP_REDIRECT_TOSNET
  945. #define ICMP_REDIRECT_TOSNET 2
  946. #endif
  947. #ifndef ICMP_REDIRECT_TOSHOST
  948. #define ICMP_REDIRECT_TOSHOST 3
  949. #endif
  950. #ifndef ICMP_TIMXCEED_INTRANS
  951. #define ICMP_TIMXCEED_INTRANS 0
  952. #endif
  953. #ifndef ICMP_TIMXCEED_REASS
  954. #define ICMP_TIMXCEED_REASS 1
  955. #endif
  956. #ifndef ICMP_PARAMPROB_OPTABSENT
  957. #define ICMP_PARAMPROB_OPTABSENT 1
  958. #endif
  959. uint16_t icmp_sum; /* ICMP Checksum */
  960. union
  961. {
  962. struct
  963. {
  964. uint16_t id; /* ICMP id */
  965. uint16_t seq;/* ICMP sequence number */
  966. } echo;
  967. #undef icmp_id
  968. #undef icmp_seq
  969. #define icmp_id hun.echo.id
  970. #define icmp_seq hun.echo.seq
  971. uint32_t gateway; /* gateway host */
  972. struct
  973. {
  974. uint16_t pad;/* padding */
  975. uint16_t mtu;/* MTU size */
  976. } frag;
  977. } hun;
  978. union
  979. {
  980. struct
  981. {
  982. uint32_t its_otime;
  983. uint32_t its_rtime;
  984. uint32_t its_ttime;
  985. } ts;
  986. struct
  987. {
  988. struct tcpr_ipv4_hdr idi_ip;
  989. /* options and then 64 bits of data */
  990. } ip;
  991. uint32_t mask;
  992. int8_t data[1];
  993. #undef icmp_mask
  994. #define icmp_mask dun.mask
  995. #undef icmp_data
  996. #define icmp_data dun.data
  997. #undef icmp_otime
  998. #define icmp_otime dun.ts.its_otime
  999. #undef icmp_rtime
  1000. #define icmp_rtime dun.ts.its_rtime
  1001. #undef icmp_ttime
  1002. #define icmp_ttime dun.ts.its_ttime
  1003. }dun;
  1004. };
  1005. /*
  1006. * IGMP header
  1007. * Internet Group Message Protocol
  1008. * Static header size: 8 bytes
  1009. */
  1010. struct tcpr_igmp_hdr
  1011. {
  1012. uint8_t igmp_type; /* IGMP type */
  1013. #ifndef IGMP_MEMBERSHIP_QUERY
  1014. #define IGMP_MEMBERSHIP_QUERY 0x11 /* membership query */
  1015. #endif
  1016. #ifndef IGMP_V1_MEMBERSHIP_REPORT
  1017. #define IGMP_V1_MEMBERSHIP_REPORT 0x12 /* Ver. 1 membership report */
  1018. #endif
  1019. #ifndef IGMP_V2_MEMBERSHIP_REPORT
  1020. #define IGMP_V2_MEMBERSHIP_REPORT 0x16 /* Ver. 2 membership report */
  1021. #endif
  1022. #ifndef IGMP_LEAVE_GROUP
  1023. #define IGMP_LEAVE_GROUP 0x17 /* Leave-group message */
  1024. #endif
  1025. uint8_t igmp_code; /* IGMP code */
  1026. uint16_t igmp_sum; /* IGMP checksum */
  1027. struct in_addr igmp_group;/* IGMP host IP */
  1028. };
  1029. /*
  1030. * IPSEC header
  1031. * Internet Protocol Security Protocol
  1032. * Encapsulating Security Payload Header Static header size: 12 bytes
  1033. * Encapsulating Security Payload Footer Base header size: 2 bytes
  1034. * Authentication Header Static Size: 16 bytes
  1035. */
  1036. #ifndef IPPROTO_ESP
  1037. #define IPPROTO_ESP 50 /* not everyone's got this */
  1038. #endif
  1039. struct tcpr_esp_hdr
  1040. {
  1041. uint32_t esp_spi; /* security parameter index */
  1042. uint32_t esp_seq; /* ESP sequence number */
  1043. uint32_t esp_iv; /* initialization vector */
  1044. };
  1045. struct tcpr_esp_ftr
  1046. {
  1047. uint8_t esp_pad_len; /* padding length */
  1048. uint8_t esp_nh; /* next header pointer */
  1049. int8_t *esp_auth; /* authentication data */
  1050. };
  1051. #ifndef IPPROTO_AH
  1052. #define IPPROTO_AH 51 /* not everyone's got this */
  1053. #endif
  1054. struct tcpr_ah_hdr
  1055. {
  1056. uint8_t ah_nh; /* next header */
  1057. uint8_t ah_len; /* payload length */
  1058. uint16_t ah_res; /* reserved */
  1059. uint32_t ah_spi; /* security parameter index */
  1060. uint32_t ah_seq; /* AH sequence number */
  1061. uint32_t ah_auth; /* authentication data */
  1062. };
  1063. /*
  1064. * ISL header
  1065. * Cisco Inter-Switch Link
  1066. * Static header size: 26 bytes
  1067. */
  1068. /*
  1069. * For checksum stuff -- IANA says 135-254 is "unassigned" as of 12.2001.
  1070. * Let's hope this one stays that way for a while!
  1071. */
  1072. #define TCPR_PROTO_ISL 201
  1073. struct tcpr_isl_hdr
  1074. {
  1075. uint8_t isl_dhost[5]; /* destination address "01:00:0c:00:00" */
  1076. #ifdef WORDS_BIGENDIAN
  1077. uint8_t isl_user:4, /* user defined bits */
  1078. isl_type:4; /* type of frame */
  1079. #else
  1080. uint8_t isl_type:4, /* type of frame */
  1081. isl_user:4; /* user defined bits */
  1082. #endif
  1083. uint8_t isl_shost[6]; /* source address */
  1084. uint16_t isl_len; /* total length of packet - 18 bytes */
  1085. uint8_t isl_snap[6]; /* 0xaaaa03 + vendor code */
  1086. uint16_t isl_vid; /* 15 bit VLAN ID, 1 bit BPDU / CDP indicator */
  1087. uint16_t isl_index; /* port index */
  1088. uint16_t isl_reserved; /* used for FDDI and token ring */
  1089. /* ethernet frame and 4 byte isl crc */
  1090. };
  1091. #ifndef IPPROTO_OSPF
  1092. #define IPPROTO_OSPF 89 /* not everyone's got this */
  1093. #endif
  1094. #define IPPROTO_OSPF_LSA 890 /* made this up. Hope it's unused */
  1095. #define TCPR_MODX 4102 /* used in LSA checksum */
  1096. /*
  1097. * Options used in multiple OSPF packets
  1098. * More info can be found in section A.2 of RFC 2328.
  1099. */
  1100. #define TCPR_OPT_EBIT 0x02 /* describes the way AS-external-LSAs are flooded */
  1101. #define TCPR_OPT_MCBIT 0x04 /* whether or not IP multicast dgrams are fwdd */
  1102. #define TCPR_OPT_NPBIT 0x08 /* describes handling of type-7 LSAs */
  1103. #define TCPR_OPT_EABIT 0x10 /* rtr's willingness to send/recv EA-LSAs */
  1104. #define TCPR_OPT_DCBIT 0x20 /* describes handling of demand circuits */
  1105. /*
  1106. * MPLS header
  1107. * Multi-Protocol Label Switching
  1108. * Static header size: 4 bytes
  1109. */
  1110. struct tcpr_mpls_hdr
  1111. {
  1112. uint32_t mpls_les; /* 20 bits label, 3 bits exp, 1 bit bos, ttl */
  1113. #define TCPR_MPLS_BOS_ON 1
  1114. #define TCPR_MPLS_BOS_OFF 0
  1115. };
  1116. /*
  1117. * NTP header
  1118. * Network Time Protocol
  1119. * Static header size: 48 bytes
  1120. */
  1121. struct tcpr_ntp_hdr_l_fp /* int32_t floating point (64-bit) */
  1122. {
  1123. uint32_t integer; /* integer */
  1124. uint32_t fraction; /* fraction */
  1125. };
  1126. struct tcpr_ntp_hdr_s_fp /* int16_t floating point (32-bit) */
  1127. {
  1128. uint16_t integer; /* integer */
  1129. uint16_t fraction; /* fraction */
  1130. };
  1131. struct tcpr_ntp_hdr
  1132. {
  1133. uint8_t ntp_li_vn_mode; /* leap indicator, version, mode */
  1134. #define TCPR_NTP_LI_NW 0x0 /* no warning */
  1135. #define TCPR_NTP_LI_AS 0x1 /* last minute has 61 seconds */
  1136. #define TCPR_NTP_LI_DS 0x2 /* last minute has 59 seconds */
  1137. #define TCPR_NTP_LI_AC 0x3 /* alarm condition */
  1138. #define TCPR_NTP_VN_2 0x2 /* version 2 */
  1139. #define TCPR_NTP_VN_3 0x3 /* version 3 */
  1140. #define TCPR_NTP_VN_4 0x4 /* version 4 */
  1141. #define TCPR_NTP_MODE_R 0x0 /* reserved */
  1142. #define TCPR_NTP_MODE_A 0x1 /* symmetric active */
  1143. #define TCPR_NTP_MODE_P 0x2 /* symmetric passive */
  1144. #define TCPR_NTP_MODE_C 0x3 /* client */
  1145. #define TCPR_NTP_MODE_S 0x4 /* server */
  1146. #define TCPR_NTP_MODE_B 0x5 /* broadcast */
  1147. #define TCPR_NTP_MODE_RC 0x6 /* reserved for NTP control message */
  1148. #define TCPR_NTP_MODE_RP 0x7 /* reserved for private use */
  1149. uint8_t ntp_stratum; /* stratum */
  1150. #define TCPR_NTP_STRATUM_UNAVAIL 0x0 /* unspecified or unavailable */
  1151. #define TCPR_NTP_STRATUM_PRIMARY 0x1 /* primary reference (radio clock) */
  1152. /* 2 - 15 is secondary */
  1153. /* 16 - 255 is reserved */
  1154. uint8_t ntp_poll; /* poll interval (should be 4 - 12) */
  1155. uint8_t ntp_precision; /* local clock precision */
  1156. struct tcpr_ntp_hdr_s_fp ntp_delay; /* roundtrip delay */
  1157. struct tcpr_ntp_hdr_s_fp ntp_dispersion; /* nominal error */
  1158. uint32_t ntp_reference_id; /* reference source id */
  1159. #define TCPR_NTP_REF_LOCAL 0x4c4f434c /* uncalibrated local clock */
  1160. #define TCPR_NTP_REF_PPS 0x50505300 /* atomic / pulse-per-second clock */
  1161. #define TCPR_NTP_REF_ACTS 0x41435453 /* NIST dialup modem */
  1162. #define TCPR_NTP_REF_USNO 0x55534e4f /* USNO modem service */
  1163. #define TCPR_NTP_REF_PTB 0x50544200 /* PTB (German) modem service */
  1164. #define TCPR_NTP_REF_TDF 0x54444600 /* Allouis (French) radio */
  1165. #define TCPR_NTP_REF_DCF 0x44434600 /* Mainflingen (German) radio */
  1166. #define TCPR_NTP_REF_MSF 0x4d534600 /* Rugby (UK) radio */
  1167. #define TCPR_NTP_REF_WWV 0x57575600 /* Ft Collins (US) radio */
  1168. #define TCPR_NTP_REF_WWVB 0x57575642 /* Boulder (US) radio */
  1169. #define TCPR_NTP_REF_WWVH 0x57575648 /* Kaui Hawaii (US) radio */
  1170. #define TCPR_NTP_REF_CHU 0x43485500 /* Ottaha (Canada) radio */
  1171. #define TCPR_NTP_REF_LORC 0x4c4f5243 /* LORAN-C radionavigation */
  1172. #define TCPR_NTP_REF_OMEG 0x4f4d4547 /* OMEGA radionavigation */
  1173. #define TCPR_NTP_REF_GPS 0x47505300 /* global positioning system */
  1174. #define TCPR_NTP_REF_GOES 0x474f4553 /* geostationary orbit env satellite */
  1175. struct tcpr_ntp_hdr_l_fp ntp_ref_ts; /* reference timestamp */
  1176. struct tcpr_ntp_hdr_l_fp ntp_orig_ts; /* originate timestamp */
  1177. struct tcpr_ntp_hdr_l_fp ntp_rec_ts; /* receive timestamp */
  1178. struct tcpr_ntp_hdr_l_fp ntp_xmt_ts; /* transmit timestamp */
  1179. };
  1180. /*
  1181. * OSPFv2 header
  1182. * Open Shortest Path First
  1183. * Static header size: 16 bytes
  1184. */
  1185. struct tcpr_ospf_hdr
  1186. {
  1187. uint8_t ospf_v; /* version */
  1188. #define OSPFVERSION 2
  1189. uint8_t ospf_type; /* type */
  1190. #define TCPR_OSPF_UMD 0 /* UMd monitoring packet */
  1191. #define TCPR_OSPF_HELLO 1 /* HELLO packet */
  1192. #define TCPR_OSPF_DBD 2 /* dataBase description packet */
  1193. #define TCPR_OSPF_LSR 3 /* link state request packet */
  1194. #define TCPR_OSPF_LSU 4 /* link state Update Packet */
  1195. #define TCPR_OSPF_LSA 5 /* link state acknowledgement packet */
  1196. uint16_t ospf_len; /* length */
  1197. struct in_addr ospf_rtr_id; /* source router ID */
  1198. struct in_addr ospf_area_id;/* roam ID */
  1199. uint16_t ospf_sum; /* checksum */
  1200. uint16_t ospf_auth_type; /* authentication type */
  1201. #define TCPR_OSPF_AUTH_NULL 0 /* null password */
  1202. #define TCPR_OSPF_AUTH_SIMPLE 1 /* simple, plaintext, 8 int8_t password */
  1203. #define TCPR_OSPF_AUTH_MD5 2 /* MD5 */
  1204. };
  1205. /*
  1206. * OSPF authentication header
  1207. * Open Shortest Path First
  1208. * Static header size: 8 bytes
  1209. */
  1210. struct tcpr_auth_hdr
  1211. {
  1212. uint16_t ospf_auth_null; /* NULL */
  1213. uint8_t ospf_auth_keyid; /* authentication key ID */
  1214. uint8_t ospf_auth_len; /* auth data length */
  1215. uint32_t ospf_auth_seq; /* cryptographic sequence number */
  1216. };
  1217. /*
  1218. * OSPF hello header
  1219. * Open Shortest Path First
  1220. * Static header size: 28 bytes
  1221. */
  1222. struct tcpr_ospf_hello_hdr
  1223. {
  1224. struct in_addr hello_nmask; /* netmask associated with the interface */
  1225. uint16_t hello_intrvl; /* num of seconds between routers last packet */
  1226. uint8_t hello_opts; /* Options for HELLO packets (look above) */
  1227. uint8_t hello_rtr_pri; /* router's priority (if 0, can't be backup) */
  1228. uint32_t hello_dead_intvl; /* # of secs a router is silent till deemed down */
  1229. struct in_addr hello_des_rtr; /* Designated router on the network */
  1230. struct in_addr hello_bkup_rtr; /* Backup router */
  1231. struct in_addr hello_nbr; /* neighbor router, memcpy more as needed */
  1232. };
  1233. /*
  1234. * Database Description header.
  1235. */
  1236. struct tcpr_dbd_hdr
  1237. {
  1238. uint16_t dbd_mtu_len; /* max length of IP dgram that this 'if' can use */
  1239. uint8_t dbd_opts; /* DBD packet options (from above) */
  1240. uint8_t dbd_type; /* type of exchange occurring */
  1241. #define TCPR_DBD_IBI 0x01 /* init */
  1242. #define TCPR_DBD_MBIT 0x02 /* more DBD packets are to come */
  1243. #define TCPR_DBD_MSBIT 0x04 /* If 1, sender is the master in the exchange */
  1244. uint32_t dbd_seq; /* DBD sequence number */
  1245. };
  1246. /*
  1247. * used for the LS type field in all LS* headers
  1248. */
  1249. #define TCPR_LS_TYPE_RTR 1 /* router-LSA */
  1250. #define TCPR_LS_TYPE_NET 2 /* network-LSA */
  1251. #define TCPR_LS_TYPE_IP 3 /* summary-LSA (IP Network) */
  1252. #define TCPR_LS_TYPE_ASBR 4 /* summary-LSA (ASBR) */
  1253. #define TCPR_LS_TYPE_ASEXT 5 /* AS-external-LSA */
  1254. /*
  1255. * Link State Request header
  1256. */
  1257. struct tcpr_lsr_hdr
  1258. {
  1259. uint32_t lsr_type; /* type of LS being requested */
  1260. uint32_t lsr_lsid; /* link state ID */
  1261. struct in_addr lsr_adrtr; /* advertising router (memcpy more as needed) */
  1262. };
  1263. /*
  1264. * Link State Update header
  1265. */
  1266. struct tcpr_lsu_hdr
  1267. {
  1268. uint32_t lsu_num; /* number of LSAs that will be broadcasted */
  1269. };
  1270. /*
  1271. * Link State Acknowledgement header.
  1272. */
  1273. struct tcpr_lsa_hdr
  1274. {
  1275. uint16_t lsa_age; /* time in seconds since the LSA was originated */
  1276. uint8_t lsa_opts; /* look above for OPTS_* */
  1277. uint8_t lsa_type; /* look below for LS_TYPE_* */
  1278. uint32_t lsa_id; /* link State ID */
  1279. struct in_addr lsa_adv; /* router ID of Advertising router */
  1280. uint32_t lsa_seq; /* LSA sequence number to detect old/bad ones */
  1281. uint16_t lsa_sum; /* "Fletcher Checksum" of all fields minus age */
  1282. uint16_t lsa_len; /* length in bytes including the 20 byte header */
  1283. };
  1284. /*
  1285. * Router LSA data format
  1286. *
  1287. * Other stuff for TOS can be added for backward compatibility, for this
  1288. * version, only OSPFv2 is being FULLY supported.
  1289. */
  1290. struct tcpr_rtr_lsa_hdr
  1291. {
  1292. uint16_t rtr_flags; /* set to help describe packet */
  1293. #define TCPR_RTR_FLAGS_W 0x0100 /* W bit */
  1294. #define TCPR_RTR_FLAGS_E 0x0200 /* E bit */
  1295. #define TCPR_RTR_FLAGS_B 0x0400 /* B bit */
  1296. uint16_t rtr_num; /* number of links within that packet */
  1297. uint32_t rtr_link_id; /* describes link_data (look below) */
  1298. #define TCPR_LINK_ID_NBR_ID 1 /* Neighbors router ID, also can be 4 */
  1299. #define TCPR_LINK_ID_IP_DES 2 /* IP address of designated router */
  1300. #define TCPR_LINK_ID_SUB 3 /* IP subnet number */
  1301. uint32_t rtr_link_data; /* Depending on link_id, info is here */
  1302. uint8_t rtr_type; /* Description of router link */
  1303. #define TCPR_RTR_TYPE_PTP 1 /* Point-To-Point */
  1304. #define TCPR_RTR_TYPE_TRANS 2 /* Connection to a "transit network" */
  1305. #define TCPR_RTR_TYPE_STUB 3 /* Connectin to a "stub network" */
  1306. #define RTR_TYPE_VRTL 4 /* connects to a "virtual link" */
  1307. uint8_t rtr_tos_num; /* number of different TOS metrics for this link */
  1308. uint16_t rtr_metric; /* the "cost" of using this link */
  1309. };
  1310. /*
  1311. * Network LSA data format.
  1312. */
  1313. struct tcpr_net_lsa_hdr
  1314. {
  1315. struct in_addr net_nmask; /* Netmask for that network */
  1316. uint32_t net_rtr_id; /* ID of router attached to that network */
  1317. };
  1318. /*
  1319. * Summary LSA data format.
  1320. */
  1321. struct tcpr_sum_lsa_hdr
  1322. {
  1323. struct in_addr sum_nmask; /* Netmask of destination IP address */
  1324. uint32_t sum_metric; /* Same as in rtr_lsa (&0xfff to use last 24bit */
  1325. uint32_t sum_tos_metric; /* first 8bits are TOS, 24bits are TOS Metric */
  1326. };
  1327. /*
  1328. * AS External LSA data format.
  1329. * & 0xfff logic operator for as_metric to get last 24bits.
  1330. */
  1331. struct tcpr_as_lsa_hdr
  1332. {
  1333. struct in_addr as_nmask; /* Netmask for advertised destination */
  1334. uint32_t as_metric; /* May have to set E bit in first 8bits */
  1335. #define TCPR_AS_E_BIT_ON 0x80000000 /* as_metric */
  1336. struct in_addr as_fwd_addr; /* Forwarding address */
  1337. uint32_t as_rte_tag; /* External route tag */
  1338. };
  1339. /*
  1340. * Base RIP header
  1341. * Routing Information Protocol
  1342. * Base header size: 24 bytes
  1343. */
  1344. struct tcpr_rip_hdr
  1345. {
  1346. uint8_t rip_cmd; /* RIP command */
  1347. #define RIPCMD_REQUEST 1 /* want info */
  1348. #define RIPCMD_RESPONSE 2 /* responding to request */
  1349. #define RIPCMD_TRACEON 3 /* turn tracing on */
  1350. #define RIPCMD_TRACEOFF 4 /* turn it off */
  1351. #define RIPCMD_POLL 5 /* like request, but anyone answers */
  1352. #define RIPCMD_POLLENTRY 6 /* like poll, but for entire entry */
  1353. #define RIPCMD_MAX 7 /* ? command */
  1354. uint8_t rip_ver; /* RIP version */
  1355. #define RIPVER_0 0
  1356. #define RIPVER_1 1
  1357. #define RIPVER_2 2
  1358. uint16_t rip_rd; /* Zero (v1) or Routing Domain (v2) */
  1359. uint16_t rip_af; /* Address family */
  1360. uint16_t rip_rt; /* Zero (v1) or Route Tag (v2) */
  1361. uint32_t rip_addr; /* IP address */
  1362. uint32_t rip_mask; /* Zero (v1) or Subnet Mask (v2) */
  1363. uint32_t rip_next_hop; /* Zero (v1) or Next hop IP address (v2) */
  1364. uint32_t rip_metric; /* Metric */
  1365. };
  1366. /*
  1367. * RPC headers
  1368. * Remote Procedure Call
  1369. */
  1370. #define TCPR_RPC_CALL 0
  1371. #define TCPR_RPC_REPLY 1
  1372. #define TCPR_RPC_VERS 2
  1373. #define TCPR_RPC_LAST_FRAG 0x80000000
  1374. /*
  1375. * Portmap defines
  1376. */
  1377. #define TCPR_PMAP_PROGRAM 100000
  1378. #define TCPR_PMAP_PROC_NULL 0
  1379. #define TCPR_PMAP_PROC_SET 1
  1380. #define TCPR_PMAP_PROC_UNSET 2
  1381. #define TCPR_PMAP_PROC_GETADDR 3
  1382. #define TCPR_PMAP_PROC_DUMP 4
  1383. #define TCPR_PMAP_PROC_CALLIT 5
  1384. #define TCPR_PMAP_PROC_BCAST 5 /* Not a typo */
  1385. #define TCPR_PMAP_PROC_GETTIME 6
  1386. #define TCPR_PMAP_PROC_UADDR2TADDR 7
  1387. #define TCPR_PMAP_PROC_TADDR2UADDR 8
  1388. #define TCPR_PMAP_PROC_GETVERSADDR 9
  1389. #define TCPR_PMAP_PROC_INDIRECT 10
  1390. #define TCPR_PMAP_PROC_GETADDRLIST 11
  1391. #define TCPR_PMAP_PROC_GETSTAT 12
  1392. /* There will be more to add... */
  1393. struct tcpr_rpc_opaque_auth
  1394. {
  1395. uint32_t rpc_auth_flavor;
  1396. uint32_t rpc_auth_length;
  1397. #if 0
  1398. uint8_t *rpc_auth_data;
  1399. #endif
  1400. };
  1401. struct tcpr_rpc_call
  1402. {
  1403. uint32_t rpc_rpcvers; /* RPC version - must be 2 */
  1404. uint32_t rpc_prognum; /* Program Number */
  1405. uint32_t rpc_vers; /* Program Version */
  1406. uint32_t rpc_procedure; /* RPC procedure */
  1407. struct tcpr_rpc_opaque_auth rpc_credentials;
  1408. struct tcpr_rpc_opaque_auth rpc_verifier;
  1409. };
  1410. struct tcpr_rpc_call_hdr
  1411. {
  1412. uint32_t rpc_xid; /* xid (transaction identifier) */
  1413. uint32_t rpc_type;
  1414. struct tcpr_rpc_call rpc_call;
  1415. };
  1416. struct tcpr_rpc_call_tcp_hdr
  1417. {
  1418. uint32_t rpc_record_marking; /* used with byte stream protocols */
  1419. struct tcpr_rpc_call_hdr rpc_common;
  1420. };
  1421. /*
  1422. * STP configuration header
  1423. * Spanning Tree Protocol
  1424. * Static header size: 35 bytes
  1425. */
  1426. struct tcpr_stp_conf_hdr
  1427. {
  1428. uint16_t stp_id; /* protocol id */
  1429. uint8_t stp_version; /* protocol version */
  1430. uint8_t stp_bpdu_type; /* bridge protocol data unit type */
  1431. uint8_t stp_flags; /* control flags */
  1432. uint8_t stp_rootid[8]; /* root id */
  1433. uint32_t stp_rootpc; /* root path cost */
  1434. uint8_t stp_bridgeid[8]; /* bridge id */
  1435. uint16_t stp_portid; /* port id */
  1436. uint16_t stp_mage; /* message age */
  1437. uint16_t stp_maxage; /* max age */
  1438. uint16_t stp_hellot; /* hello time */
  1439. uint16_t stp_fdelay; /* forward delay */
  1440. };
  1441. /*
  1442. * STP topology change notification header
  1443. * Spanning Tree Protocol
  1444. * Static header size: 4 bytes
  1445. */
  1446. struct tcpr_stp_tcn_hdr
  1447. {
  1448. uint16_t stp_id; /* protocol id */
  1449. uint8_t stp_version; /* protocol version */
  1450. uint8_t stp_bpdu_type; /* bridge protocol data unit type */
  1451. };
  1452. /*
  1453. * TCP header
  1454. * Transmission Control Protocol
  1455. * Static header size: 20 bytes
  1456. */
  1457. struct tcpr_tcp_hdr
  1458. {
  1459. uint16_t th_sport; /* source port */
  1460. uint16_t th_dport; /* destination port */
  1461. uint32_t th_seq; /* sequence number */
  1462. uint32_t th_ack; /* acknowledgement number */
  1463. #ifdef WORDS_BIGENDIAN
  1464. uint8_t th_off:4, /* data offset */
  1465. th_x2:4; /* (unused) */
  1466. #else
  1467. uint8_t th_x2:4, /* (unused) */
  1468. th_off:4; /* data offset */
  1469. #endif
  1470. uint8_t th_flags; /* control flags */
  1471. #ifndef TH_FIN
  1472. #define TH_FIN 0x01 /* finished send data */
  1473. #endif
  1474. #ifndef TH_SYN
  1475. #define TH_SYN 0x02 /* synchronize sequence numbers */
  1476. #endif
  1477. #ifndef TH_RST
  1478. #define TH_RST 0x04 /* reset the connection */
  1479. #endif
  1480. #ifndef TH_PUSH
  1481. #define TH_PUSH 0x08 /* push data to the app layer */
  1482. #endif
  1483. #ifndef TH_ACK
  1484. #define TH_ACK 0x10 /* acknowledge */
  1485. #endif
  1486. #ifndef TH_URG
  1487. #define TH_URG 0x20 /* urgent! */
  1488. #endif
  1489. #ifndef TH_ECE
  1490. #define TH_ECE 0x40
  1491. #endif
  1492. #ifndef TH_CWR
  1493. #define TH_CWR 0x80
  1494. #endif
  1495. uint16_t th_win; /* window */
  1496. uint16_t th_sum; /* checksum */
  1497. uint16_t th_urp; /* urgent pointer */
  1498. };
  1499. /*
  1500. * Token Ring Header
  1501. */
  1502. struct tcpr_token_ring_hdr
  1503. {
  1504. uint8_t token_ring_access_control;
  1505. #define TCPR_TOKEN_RING_FRAME 0x10
  1506. uint8_t token_ring_frame_control;
  1507. #define TCPR_TOKEN_RING_LLC_FRAME 0x40
  1508. uint8_t token_ring_dhost[TOKEN_RING_ADDR_LEN];
  1509. uint8_t token_ring_shost[TOKEN_RING_ADDR_LEN];
  1510. uint8_t token_ring_llc_dsap;
  1511. uint8_t token_ring_llc_ssap;
  1512. uint8_t token_ring_llc_control_field;
  1513. uint8_t token_ring_llc_org_code[TCPR_ORG_CODE_SIZE];
  1514. uint16_t token_ring_type;
  1515. #define TOKEN_RING_TYPE_IP 0x0800 /* IP protocol */
  1516. #define TOKEN_RING_TYPE_ARP 0x0806 /* addr. resolution protocol */
  1517. #define TOKEN_RING_TYPE_REVARP 0x8035 /* reverse addr. resolution protocol */
  1518. };
  1519. struct tcpr_token_ring_addr
  1520. {
  1521. uint8_t token_ring_addr_octet[6]; /* Token Ring address */
  1522. };
  1523. /*
  1524. * UDP header
  1525. * User Data Protocol
  1526. * Static header size: 8 bytes
  1527. */
  1528. struct tcpr_udp_hdr
  1529. {
  1530. uint16_t uh_sport; /* source port */
  1531. uint16_t uh_dport; /* destination port */
  1532. uint16_t uh_ulen; /* length */
  1533. uint16_t uh_sum; /* checksum */
  1534. };
  1535. /*
  1536. * Sebek header
  1537. * Static header size: 48 bytes
  1538. */
  1539. struct tcpr_sebek_hdr
  1540. {
  1541. uint32_t magic; /* identify packets that should be hidden */
  1542. uint16_t version; /* protocol version, currently 1 */
  1543. #define SEBEK_PROTO_VERSION 1
  1544. uint16_t type; /* type of record (read data is type 0, write data is type 1) */
  1545. #define SEBEK_TYPE_READ 0 /* Currently, only read is supported */
  1546. #define SEBEK_TYPE_WRITE 1
  1547. uint32_t counter; /* PDU counter used to identify when packet are lost */
  1548. uint32_t time_sec; /* seconds since EPOCH according to the honeypot */
  1549. uint32_t time_usec; /* residual microseconds */
  1550. uint32_t pid; /* PID */
  1551. uint32_t uid; /* UID */
  1552. uint32_t fd; /* FD */
  1553. #define SEBEK_CMD_LENGTH 12
  1554. uint8_t cmd[SEBEK_CMD_LENGTH]; /* 12 first characters of the command */
  1555. uint32_t length; /* length in bytes of the PDU's body */
  1556. };
  1557. /*
  1558. * VRRP header
  1559. * Virtual Router Redundancy Protocol
  1560. * Static header size: 8 bytes
  1561. */
  1562. #ifndef IPPROTO_VRRP
  1563. #define IPPROTO_VRRP 112 /* not everyone's got this */
  1564. #endif
  1565. struct tcpr_vrrp_hdr
  1566. {
  1567. #ifdef WORDS_BIGENDIAN
  1568. uint8_t vrrp_t:4, /* packet type */
  1569. vrrp_v:4; /* protocol version */
  1570. #else
  1571. uint8_t vrrp_v:4, /* protocol version */
  1572. vrrp_t:4; /* packet type */
  1573. #endif
  1574. #define TCPR_VRRP_VERSION_01 0x1
  1575. #define TCPR_VRRP_VERSION_02 0x2
  1576. #define TCPR_VRRP_TYPE_ADVERT 0x1
  1577. uint8_t vrrp_vrouter_id; /* virtual router id */
  1578. uint8_t vrrp_priority; /* priority */
  1579. uint8_t vrrp_ip_count; /* number of IP addresses */
  1580. uint8_t vrrp_auth_type; /* authorization type */
  1581. #define TCPR_VRRP_AUTH_NONE 0x1
  1582. #define TCPR_VRRP_AUTH_PASSWD 0x2
  1583. #define TCPR_VRRP_AUTH_IPAH 0x3
  1584. uint8_t vrrp_advert_int; /* advertisement interval */
  1585. uint16_t vrrp_sum; /* checksum */
  1586. /* additional addresses */
  1587. /* authentication info */
  1588. };
  1589. /*
  1590. * HSRP header
  1591. * Static header size: 20 bytes
  1592. */
  1593. struct tcpr_hsrp_hdr
  1594. {
  1595. #define TCPR_HSRP_VERSION 0x0
  1596. uint8_t version; /* Version of the HSRP messages */
  1597. #define TCPR_HSRP_TYPE_HELLO 0x0
  1598. #define TCPR_HSRP_TYPE_COUP 0x1
  1599. #define TCPR_HSRP_TYPE_RESIGN 0x2
  1600. uint8_t opcode; /* Type of message */
  1601. #define TCPR_HSRP_STATE_INITIAL 0x0
  1602. #define TCPR_HSRP_STATE_LEARN 0x1
  1603. #define TCPR_HSRP_STATE_LISTEN 0x2
  1604. #define TCPR_HSRP_STATE_SPEAK 0x4
  1605. #define TCPR_HSRP_STATE_STANDBY 0x8
  1606. #define TCPR_HSRP_STATE_ACTIVE 0x10
  1607. uint8_t state; /* Current state of the router */
  1608. uint8_t hello_time; /* Period in seconds between hello messages */
  1609. uint8_t hold_time; /* Seconds that the current hello message is valid */
  1610. uint8_t priority; /* Priority for the election process */
  1611. uint8_t group; /* Standby group */
  1612. uint8_t reserved; /* Reserved field */
  1613. #define HSRP_AUTHDATA_LENGTH 8
  1614. uint8_t authdata[HSRP_AUTHDATA_LENGTH]; /* Password */
  1615. uint32_t virtual_ip; /* Virtual IP address */
  1616. };
  1617. #endif /* _TCPR_H_ */