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/* Phenoelit IRPAS
* protocol definitions
*
* $Id: protocols.h,v 1.9 2001/10/18 12:02:58 fx Exp $
*/
#ifndef _PROTOCOLS_H_
#define _PROTOCOLS_H_
#include <net/ethernet.h>
#include <net/if.h>
#include <netinet/in.h>
/* ************************************************************
* Ethernet Frames
* ************************************************************/
typedef struct {
struct ether_addr daddr;
struct ether_addr saddr;
u_int16_t type;
} etherIIhdr_t;
/* IEEE 802.3, LLC related structs */
struct eth_ieee802_3 {
struct ether_addr daddr;
struct ether_addr saddr;
u_int16_t length;
};
struct eth_LLC {
u_int8_t DSAP;
u_int8_t SSAP;
u_int8_t Control;
u_int8_t orgcode[3];
u_int16_t proto;
};
struct eth_LLC_short {
u_int8_t DSAP;
u_int8_t SSAP;
u_int8_t Control;
u_int8_t orgcode[3];
u_int16_t proto;
};
/* ************************************************************
* CDP frames
* ************************************************************/
/* CDP header */
struct cdphdr {
u_int8_t version;
u_int8_t ttl;
u_int16_t checksum;
};
/* CDP sections */
#define TYPE_DEVICE_ID 0x0001
#define TYPE_ADDRESS 0x0002
#define TYPE_PORT_ID 0x0003
#define TYPE_CAPABILITIES 0x0004
#define TYPE_IOS_VERSION 0x0005
#define TYPE_PLATFORM 0x0006
#define TYPE_VTP_MGMT 0x0009
#define TYPE_VLAN 0x000a
#define TYPE_DUPLEX 0x000b
struct cdp_device {
u_int16_t type; /* 0x0001 */
u_int16_t length;
u_char device; /* pointer to device name */
};
struct cdp_address {
u_int16_t type; /* 0x0002 */
u_int16_t length;
u_int32_t number; /* number of addresses */
};
struct cdp_address_entry {
u_int8_t proto_type; /* 0x1 for NLPID */
u_int8_t length; /* 0x1 for IP */
u_int8_t proto; /* 0xCC for IP */
u_int8_t addrlen[2];
u_char addr;
};
struct cdp_port {
u_int16_t type; /* 0x0003 */
u_int16_t length;
u_char port; /* pointer to port name */
};
#define CDP_CAP_LEVEL1 0x40
#define CDP_CAP_FORWARD_IGMP 0x20
#define CDP_CAP_NETWORK_LAYER 0x10
#define CDP_CAP_LEVEL2_SWITCH 0x08
#define CDP_CAP_LEVEL2_SRB 0x04
#define CDP_CAP_LEVEL2_TRBR 0x02
#define CDP_CAP_LEVEL3_ROUTER 0x01
struct cdp_capabilities {
u_int16_t type; /* 0x0004 */
u_int16_t length; /* is 8 */
u_int32_t capab;
};
struct cdp_software {
u_int16_t type; /* 0x0005 */
u_int16_t length;
u_char software; /* pointer to software string */
};
struct cdp_platform {
u_int16_t type; /* 0x0006 */
u_int16_t length;
u_char platform; /* pointer to platform string */
};
typedef struct {
u_int16_t type;
u_int16_t length;
u_char value; /* pointer to port name */
} cdp_generic_t;
/* ************************************************************
* PPPoE
* ************************************************************/
typedef struct {
u_int8_t version:4,type:4 __attribute__ ((packed));
u_int8_t code __attribute__ ((packed));
u_int16_t session __attribute__ ((packed));
u_int16_t payload_len __attribute__ ((packed));
} pppoe_data_t;
/* ************************************************************
* ARP version 4
* ************************************************************/
#define ARPOP_REQUEST 1 /* ARP request. */
#define ARPOP_REPLY 2 /* ARP reply. */
#define ARPOP_RREQUEST 3 /* RARP request. */
#define ARPOP_RREPLY 4 /* RARP reply. */
typedef struct {
u_int16_t hardware;
u_int16_t protocol;
u_int8_t hw_size;
u_int8_t proto_size;
u_int16_t opcode;
u_int8_t sha[ETH_ALEN]; /* Sender hardware address. */
u_int8_t sip[4]; /* Sender IP address. */
u_int8_t tha[ETH_ALEN]; /* Target hardware address. */
u_int8_t tip[4]; /* Target IP address. */
} arphdr_t;
/* ************************************************************
* IP version 4
* ************************************************************/
/*#define IPPROTO_ICMP 0x01*/
#define IPPROTO_IGRP 0x09
/*#define IPPROTO_UDP 0x11*/
#define IPPROTO_EIGRP 0x58
#define IPPROTO_OSPF 0x59
/*#define IPPROTO_GRE 0x2f*/
#define IP_ADDR_LEN 4
typedef struct {
u_int8_t ihl:4, /* header length */
version:4; /* version */
u_int8_t tos; /* type of service */
u_int16_t tot_len; /* total length */
u_int16_t id; /* identification */
u_int16_t off; /* fragment offset field */
u_int8_t ttl; /* time to live */
u_int8_t protocol; /* protocol */
u_int16_t check; /* checksum */
struct in_addr saddr;
struct in_addr daddr; /* source and dest address */
} iphdr_t;
/* ************************************************************
* TCP
* ************************************************************/
typedef struct {
u_int16_t th_sport; /* source port */
u_int16_t th_dport; /* destination port */
u_int32_t th_seq; /* sequence number */
u_int32_t th_ack; /* acknowledgement number */
#if __BYTE_ORDER == __LITTLE_ENDIAN
u_int8_t th_x2:4; /* (unused) */
u_int8_t th_off:4; /* data offset */
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
u_int8_t th_off:4; /* data offset */
u_int8_t th_x2:4; /* (unused) */
#endif
u_int8_t th_flags;
#define TH_FIN 0x01
#define TH_SYN 0x02
#define TH_RST 0x04
#define TH_PUSH 0x08
#define TH_ACK 0x10
#define TH_URG 0x20
u_int16_t th_win; /* window */
u_int16_t th_sum; /* checksum */
u_int16_t th_urp; /* urgent pointer */
} tcphdr_t;
struct pseudohdr {
struct in_addr saddr;
struct in_addr daddr;
u_char zero;
u_char protocol;
u_short length;
tcphdr_t tcpheader;
};
/* ************************************************************
* UDP
* ************************************************************/
typedef struct {
u_int16_t sport __attribute__ ((packed));
u_int16_t dport __attribute__ ((packed));
u_int16_t length __attribute__ ((packed));
u_int16_t checksum __attribute__ ((packed));
} udphdr_t;
/* ************************************************************
* IGRP
* ************************************************************/
#define IGRP_OPCODE_REQUEST 2
#define IGRP_OPCODE_UPDATE 1
typedef struct {
u_int8_t opcode:4,version:4 __attribute__ ((packed));
u_int8_t edition __attribute__ ((packed));
u_int16_t autosys __attribute__ ((packed));
u_int16_t interior __attribute__ ((packed));
u_int16_t system __attribute__ ((packed));
u_int16_t exterior __attribute__ ((packed));
u_int16_t checksum __attribute__ ((packed));
} igrp_t;
/*
* comment:
* the thing with delay[3] ... is very ugly, but I'm not good
* in representing this perhaps 3 byte long data type correctly.
* Cisco's documentation has still free space for improvements ...
*/
typedef struct {
u_int8_t destination[3] __attribute__ ((packed));
u_int8_t delay[3] __attribute__ ((packed));
u_int8_t bandwith[3] __attribute__ ((packed));
u_int16_t mtu __attribute__ ((packed));
u_int8_t reliability __attribute__ ((packed));
u_int8_t load __attribute__ ((packed));
u_int8_t hopcount __attribute__ ((packed));
} igrp_system_entry_t;
/* ************************************************************
* ICMP
* ************************************************************/
#define ICMP_ECHOREPLY 0 /* Echo Reply */
#define ICMP_DEST_UNREACH 3 /* Destination Unreachable */
#define ICMP_SOURCE_QUENCH 4 /* Source Quench */
#define ICMP_REDIRECT 5 /* Redirect (change route) */
#define ICMP_ECHO 8 /* Echo Request */
#define ICMP_ROUTER_ADVERT 9 /* router advertisement */
#define ICMP_SOLICITATION 10 /* router solicitation */
#define ICMP_TIME_EXCEEDED 11 /* Time Exceeded */
#define ICMP_PARAMETERPROB 12 /* Parameter Problem */
#define ICMP_TIMESTAMP 13 /* Timestamp Request */
#define ICMP_TIMESTAMPREPLY 14 /* Timestamp Reply */
#define ICMP_INFO_REQUEST 15 /* Information Request */
#define ICMP_INFO_REPLY 16 /* Information Reply */
#define ICMP_ADDRESS 17 /* Address Mask Request */
#define ICMP_ADDRESSREPLY 18 /* Address Mask Reply */
/* Codes for REDIRECT. */
#define ICMP_REDIR_NET 0 /* Redirect Net */
#define ICMP_REDIR_HOST 1 /* Redirect Host */
#define ICMP_REDIR_NETTOS 2 /* Redirect Net for TOS */
#define ICMP_REDIR_HOSTTOS 3 /* Redirect Host for TOS */
/* codes for unreach */
#define ICMP_UNREACH_NET 0
#define ICMP_UNREACH_HOST 1
#define ICMP_UNREACH_PROTO 2 /* protocol unreachable */
#define ICMP_UNREACH_PORT 3 /* port unreachable */
#define ICMP_UNREACH_FRAG 4 /* fragmentation needed and DF */
#define ICMP_UNREACH_SOURCE 5 /* source route failed */
#define ICMP_UNREACH_ADMIN1 9 /* administratively prohibited */
#define ICMP_UNREACH_TOS 11 /* unreach fro TOS */
#define ICMP_UNREACH_FIREWALL 13 /* port filtered */
typedef struct {
u_int8_t type __attribute__ ((packed));
u_int8_t code __attribute__ ((packed));
u_int16_t checksum __attribute__ ((packed));
} icmphdr_t;
typedef struct {
u_int16_t identifier __attribute__ ((packed));
u_int16_t seq __attribute__ ((packed));
u_int8_t data[56] __attribute__ ((packed));
} icmp_echohdr_t;
typedef struct {
icmphdr_t icmp __attribute__ ((packed));
icmp_echohdr_t echo __attribute__ ((packed));
} icmp_ping_t;
typedef struct {
u_int16_t identifier __attribute__ ((packed));
u_int16_t seq __attribute__ ((packed));
u_int8_t mask[4] __attribute__ ((packed));
} icmp_netmask_t;
typedef struct {
u_int16_t identifier __attribute__ ((packed));
u_int16_t seq __attribute__ ((packed));
u_int32_t origts __attribute__ ((packed));
u_int32_t recvts __attribute__ ((packed));
u_int32_t transts __attribute__ ((packed));
} icmp_timestamp_t;
typedef struct {
u_int8_t num_addr __attribute__ ((packed));
u_int8_t addrsize __attribute__ ((packed));
u_int16_t lifetime __attribute__ ((packed));
} irdp_t;
typedef struct {
u_int8_t addr[4] __attribute__ ((packed));
u_int32_t pref __attribute__ ((packed));
} irdp_rec_t;
typedef struct {
u_int8_t type __attribute__ ((packed));
u_int8_t code __attribute__ ((packed));
u_int16_t checksum __attribute__ ((packed));
u_int32_t reserved __attribute__ ((packed));
} irdp_solicitation_t;
typedef struct {
u_int8_t type __attribute__ ((packed));
u_int8_t code __attribute__ ((packed));
u_int16_t checksum __attribute__ ((packed));
u_int8_t gateway[4] __attribute__ ((packed));
u_int8_t headerdata[28] __attribute__ ((packed));
} icmp_redirect_t;
/* ************************************************************
* OSPF
* ************************************************************/
#define OSPF_HELLO 1
#define OSPF_DB_DESC 2
#define OSPF_LS_REQ 3
#define OSPF_LS_UPD 4
#define OSPF_LS_ACK 5
#define OSPF_AUTH_NONE 0
#define OSPF_AUTH_SIMPLE 1
#define OSPF_AUTH_CRYPT 2
typedef struct {
u_int8_t version __attribute__ ((packed));
u_int8_t type __attribute__ ((packed));
u_int16_t length __attribute__ ((packed));
u_int8_t source[4] __attribute__ ((packed));
u_int8_t area[4] __attribute__ ((packed));
u_int16_t checksum __attribute__ ((packed));
u_int16_t authtype __attribute__ ((packed));
u_int8_t authdata[8] __attribute__ ((packed));
} ospf_header_t;
typedef struct {
u_int8_t netmask[4] __attribute__ ((packed));
u_int16_t hello_interval __attribute__ ((packed));
u_int8_t options __attribute__ ((packed));
u_int8_t priority __attribute__ ((packed));
u_int8_t dead_interval[4] __attribute__ ((packed));
u_int8_t designated[4] __attribute__ ((packed));
u_int8_t backup[4] __attribute__ ((packed));
//u_int8_t activeneig[4] __attribute__ ((packed));
} ospf_hello_t;
/* ************************************************************
* Spanning Tree (STP)
* ************************************************************/
typedef struct {
u_int16_t protocolid __attribute__ ((packed));
u_int8_t version __attribute__ ((packed));
u_int8_t BPDU_type __attribute__ ((packed));
u_int8_t BPDU_flags __attribute__ ((packed));
u_int16_t root_priority __attribute__ ((packed));
u_int8_t root_id[6] __attribute__ ((packed));
u_int8_t root_path_cost[4] __attribute__ ((packed));
u_int16_t bridge_priority __attribute__ ((packed));
u_int8_t bridge_id[6] __attribute__ ((packed));
u_int16_t port_id __attribute__ ((packed));
u_int16_t message_age __attribute__ ((packed));
u_int16_t max_age __attribute__ ((packed));
u_int16_t hello_time __attribute__ ((packed));
u_int16_t forward_delay __attribute__ ((packed));
} stp_t;
/* ************************************************************
* EIGRP
* ************************************************************/
#define EIGRP_UPDATE 0x01
#define EIGRP_REQUEST 0x02
#define EIGRP_QUERY 0x03
#define EIGRP_REPLY 0x04
#define EIGRP_HELLO 0x05
#define EIGRP_TYPE_PARA 0x0001
#define EIGRP_TYPE_SOFT 0x0004
#define EIGRP_TYPE_IN_ROUTE 0x0102
#define EIGRP_TYPE_EX_ROUTE 0x0103
typedef struct {
u_int8_t version __attribute__ ((packed));
u_int8_t opcode __attribute__ ((packed));
u_int16_t checksum __attribute__ ((packed));
u_int32_t flags __attribute__ ((packed));
u_int32_t seq __attribute__ ((packed));
u_int32_t ack __attribute__ ((packed));
u_int32_t as __attribute__ ((packed));
} eigrp_t;
typedef struct {
u_int16_t type __attribute__ ((packed));
u_int16_t length __attribute__ ((packed));
u_int8_t iosmaj __attribute__ ((packed));
u_int8_t iosmin __attribute__ ((packed));
u_int8_t eigrpmaj __attribute__ ((packed));
u_int8_t eigrpmin __attribute__ ((packed));
} eigrpsoft_t;
typedef struct {
u_int16_t type __attribute__ ((packed));
u_int16_t length __attribute__ ((packed));
u_int8_t k1 __attribute__ ((packed));
u_int8_t k2 __attribute__ ((packed));
u_int8_t k3 __attribute__ ((packed));
u_int8_t k4 __attribute__ ((packed));
u_int8_t k5 __attribute__ ((packed));
u_int8_t reseved __attribute__ ((packed));
u_int16_t holdtime __attribute__ ((packed));
} eigrppara_t;
typedef struct {
u_int16_t type __attribute__ ((packed));
u_int16_t length __attribute__ ((packed));
u_int8_t nexthop[4] __attribute__ ((packed));
u_int8_t origrouter[4] __attribute__ ((packed));
u_int32_t origas __attribute__ ((packed));
u_int32_t tag __attribute__ ((packed));
u_int32_t external_metric __attribute__ ((packed));
u_int16_t reserved_1 __attribute__ ((packed));
u_int8_t external_link __attribute__ ((packed));
u_int8_t flags __attribute__ ((packed));
u_int32_t delay __attribute__ ((packed));
u_int32_t bandwidth __attribute__ ((packed));
u_int8_t mtu[3] __attribute__ ((packed));
u_int8_t hopcount __attribute__ ((packed));
u_int8_t reliability __attribute__ ((packed));
u_int8_t load __attribute__ ((packed));
u_int16_t reserved_2 __attribute__ ((packed));
u_int8_t prefix_length __attribute__ ((packed));
/* Warning:
* this filed is variable and depends on prefix_length
* 8= 1
* 16=2
* 24=3
* 32=4*/
u_int8_t dest __attribute__ ((packed));
} eigrpextroute_t;
typedef struct {
u_int16_t type __attribute__ ((packed));
u_int16_t length __attribute__ ((packed));
u_int8_t nexthop[4] __attribute__ ((packed));
u_int32_t delay __attribute__ ((packed));
u_int32_t bandwidth __attribute__ ((packed));
u_int8_t mtu[3] __attribute__ ((packed));
u_int8_t hopcount __attribute__ ((packed));
u_int8_t reliability __attribute__ ((packed));
u_int8_t load __attribute__ ((packed));
u_int16_t reserved_2 __attribute__ ((packed));
u_int8_t prefix_length __attribute__ ((packed));
/* Warning:
* this filed is variable and depends on prefix_length
* 8= 1
* 16=2
* 24=3
* 32=4*/
u_int8_t dest __attribute__ ((packed));
} eigrpintroute_t;
/* ************************************************************
* RIP v1
* ************************************************************/
#define RIP_PORT 520
#define RIP_COMMAND_REQUEST 1
#define RIP_COMMAND_RESPONSE 2
typedef struct {
u_int8_t command __attribute__ ((packed));
u_int8_t version __attribute__ ((packed));
u_int16_t zero __attribute__ ((packed));
} ripv1hdr_t;
typedef struct {
u_int16_t addrfamily __attribute__ ((packed));
u_int16_t zero1 __attribute__ ((packed));
u_int8_t address[4] __attribute__ ((packed));
u_int16_t zero2[4] __attribute__ ((packed));
u_int32_t metric __attribute__ ((packed));
} ripv1addr_t;
typedef struct {
u_int8_t command __attribute__ ((packed));
u_int8_t version __attribute__ ((packed));
u_int16_t domain __attribute__ ((packed));
} ripv2hdr_t;
typedef struct {
u_int16_t addrfamily __attribute__ ((packed));
u_int16_t routetag __attribute__ ((packed));
u_int8_t address[4] __attribute__ ((packed));
u_int8_t netmask[4] __attribute__ ((packed));
u_int8_t nexthop[4] __attribute__ ((packed));
u_int32_t metric __attribute__ ((packed));
} ripv2addr_t;
typedef struct {
u_int16_t addrfamily __attribute__ ((packed));
u_int16_t authtype __attribute__ ((packed));
u_int8_t auth[16] __attribute__ ((packed));
} ripv2auth_t;
/* ************************************************************
* GRE
* ************************************************************/
typedef struct {
u_int16_t flags;
u_int16_t proto;
} grehdr_t;
/* ************************************************************
* HSRP
* ************************************************************/
#define HSRP_OPCODE_HELLO 0
#define HSRP_OPCODE_COUP 1
#define HSRP_OPCODE_RESIGN 2
#define HSRP_STATE_INITIAL 0
#define HSRP_STATE_LEARN 1
#define HSRP_STATE_LISTEN 2
#define HSRP_STATE_SPEAK 4
#define HSRP_STATE_STANDBY 8
#define HSRP_STATE_ACTIVE 16
typedef struct {
u_int8_t version;
u_int8_t opcode;
u_int8_t state;
u_int8_t hellotime;
u_int8_t holdtime;
u_int8_t prio;
u_int8_t group;
u_int8_t reserved;
u_int8_t auth[8];
u_int8_t virtip[4];
} hsrp_t;
/* ************************************************************
* DHCP
* ************************************************************/
#define DHCP_CLIENT_PORT 68
#define DHCP_SERVER_PORT 67
#define DHCPDISCOVER 1
#define DHCPOFFER 2
#define DHCPREQUEST 3
#define DHCPDECLINE 4
#define DHCPACK 5
#define DHCPNAK 6
#define DHCPRELEASE 7
#define DHCPINFORM 8
typedef struct {
u_int8_t msgtype __attribute__ ((packed));
u_int8_t hwtype __attribute__ ((packed));
u_int8_t hwalen __attribute__ ((packed));
u_int8_t hops __attribute__ ((packed));
u_int32_t transid __attribute__ ((packed));
u_int16_t seconds __attribute__ ((packed));
u_int16_t bcastflags __attribute__ ((packed));
u_int32_t ciaddr __attribute__ ((packed));
u_int32_t yiaddr __attribute__ ((packed));
u_int32_t siaddr __attribute__ ((packed));
u_int32_t giaddr __attribute__ ((packed));
u_char chaddr[16] __attribute__ ((packed));
u_char sname[64] __attribute__ ((packed));
u_char file[128] __attribute__ ((packed));
u_int8_t cookie[4] __attribute__ ((packed));
} dhcp_t;
#define DHCP_OPTION_DISCOVER 53
#define DHCP_OPTION_PARAMETERS 55
#define DHCP_OPTION_CLIENTID 61
typedef struct {
u_int8_t type;
u_int8_t length;
u_int8_t value;
} dhcp_option_t;
#endif /*_PROTOCOLS_H_*/
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