/* @(#) $Header: /tcpdump/master/tcpdump/bootp.h,v 1.18 2007-08-21 21:59:11 guy Exp $ (LBL) *//* * Bootstrap Protocol (BOOTP).  RFC951 and RFC1048. * * This file specifies the "implementation-independent" BOOTP protocol * information which is common to both client and server. * * Copyright 1988 by Carnegie Mellon. * * Permission to use, copy, modify, and distribute this program for any * purpose and without fee is hereby granted, provided that this copyright * and permission notice appear on all copies and supporting documentation, * the name of Carnegie Mellon not be used in advertising or publicity * pertaining to distribution of the program without specific prior * permission, and notice be given in supporting documentation that copying * and distribution is by permission of Carnegie Mellon and Stanford * University.  Carnegie Mellon makes no representations about the * suitability of this software for any purpose.  It is provided "as is" * without express or implied warranty. */struct bootp {	u_int8_t	bp_op;		/* packet opcode type */	u_int8_t	bp_htype;	/* hardware addr type */	u_int8_t	bp_hlen;	/* hardware addr length */	u_int8_t	bp_hops;	/* gateway hops */	u_int32_t	bp_xid;		/* transaction ID */	u_int16_t	bp_secs;	/* seconds since boot began */	u_int16_t	bp_flags;	/* flags - see bootp_flag_values[] in print-bootp.c */	struct in_addr	bp_ciaddr;	/* client IP address */	struct in_addr	bp_yiaddr;	/* 'your' IP address */	struct in_addr	bp_siaddr;	/* server IP address */	struct in_addr	bp_giaddr;	/* gateway IP address */	u_int8_t	bp_chaddr[16];	/* client hardware address */	u_int8_t	bp_sname[64];	/* server host name */	u_int8_t	bp_file[128];	/* boot file name */	u_int8_t	bp_vend[64];	/* vendor-specific area */};/* * UDP port numbers, server and client. */#define	IPPORT_BOOTPS		67#define	IPPORT_BOOTPC		68#define BOOTPREPLY		2#define BOOTPREQUEST		1/* * Vendor magic cookie (v_magic) for CMU */#define VM_CMU		"CMU"/* * Vendor magic cookie (v_magic) for RFC1048 */#define VM_RFC1048	{ 99, 130, 83, 99 }/* * RFC1048 tag values used to specify what information is being supplied in * the vendor field of the packet. */#define TAG_PAD			((u_int8_t)   0)#define TAG_SUBNET_MASK		((u_int8_t)   1)#define TAG_TIME_OFFSET		((u_int8_t)   2)#define TAG_GATEWAY		((u_int8_t)   3)#define TAG_TIME_SERVER		((u_int8_t)   4)#define TAG_NAME_SERVER		((u_int8_t)   5)#define TAG_DOMAIN_SERVER	((u_int8_t)   6)#define TAG_LOG_SERVER		((u_int8_t)   7)#define TAG_COOKIE_SERVER	((u_int8_t)   8)#define TAG_LPR_SERVER		((u_int8_t)   9)#define TAG_IMPRESS_SERVER	((u_int8_t)  10)#define TAG_RLP_SERVER		((u_int8_t)  11)#define TAG_HOSTNAME		((u_int8_t)  12)#define TAG_BOOTSIZE		((u_int8_t)  13)#define TAG_END			((u_int8_t) 255)/* RFC1497 tags */#define	TAG_DUMPPATH		((u_int8_t)  14)#define	TAG_DOMAINNAME		((u_int8_t)  15)#define	TAG_SWAP_SERVER		((u_int8_t)  16)#define	TAG_ROOTPATH		((u_int8_t)  17)#define	TAG_EXTPATH		((u_int8_t)  18)/* RFC2132 */#define	TAG_IP_FORWARD		((u_int8_t)  19)#define	TAG_NL_SRCRT		((u_int8_t)  20)#define	TAG_PFILTERS		((u_int8_t)  21)#define	TAG_REASS_SIZE		((u_int8_t)  22)#define	TAG_DEF_TTL		((u_int8_t)  23)#define	TAG_MTU_TIMEOUT		((u_int8_t)  24)#define	TAG_MTU_TABLE		((u_int8_t)  25)#define	TAG_INT_MTU		((u_int8_t)  26)#define	TAG_LOCAL_SUBNETS	((u_int8_t)  27)#define	TAG_BROAD_ADDR		((u_int8_t)  28)#define	TAG_DO_MASK_DISC	((u_int8_t)  29)#define	TAG_SUPPLY_MASK		((u_int8_t)  30)#define	TAG_DO_RDISC		((u_int8_t)  31)#define	TAG_RTR_SOL_ADDR	((u_int8_t)  32)#define	TAG_STATIC_ROUTE	((u_int8_t)  33)#define	TAG_USE_TRAILERS	((u_int8_t)  34)#define	TAG_ARP_TIMEOUT		((u_int8_t)  35)#define	TAG_ETH_ENCAP		((u_int8_t)  36)#define	TAG_TCP_TTL		((u_int8_t)  37)#define	TAG_TCP_KEEPALIVE	((u_int8_t)  38)#define	TAG_KEEPALIVE_GO	((u_int8_t)  39)#define	TAG_NIS_DOMAIN		((u_int8_t)  40)#define	TAG_NIS_SERVERS		((u_int8_t)  41)#define	TAG_NTP_SERVERS		((u_int8_t)  42)#define	TAG_VENDOR_OPTS		((u_int8_t)  43)#define	TAG_NETBIOS_NS		((u_int8_t)  44)#define	TAG_NETBIOS_DDS		((u_int8_t)  45)#define	TAG_NETBIOS_NODE	((u_int8_t)  46)#define	TAG_NETBIOS_SCOPE	((u_int8_t)  47)#define	TAG_XWIN_FS		((u_int8_t)  48)#define	TAG_XWIN_DM		((u_int8_t)  49)#define	TAG_NIS_P_DOMAIN	((u_int8_t)  64)#define	TAG_NIS_P_SERVERS	((u_int8_t)  65)#define	TAG_MOBILE_HOME		((u_int8_t)  68)#define	TAG_SMPT_SERVER		((u_int8_t)  69)#define	TAG_POP3_SERVER		((u_int8_t)  70)#define	TAG_NNTP_SERVER		((u_int8_t)  71)#define	TAG_WWW_SERVER		((u_int8_t)  72)#define	TAG_FINGER_SERVER	((u_int8_t)  73)#define	TAG_IRC_SERVER		((u_int8_t)  74)#define	TAG_STREETTALK_SRVR	((u_int8_t)  75)#define	TAG_STREETTALK_STDA	((u_int8_t)  76)/* DHCP options */#define	TAG_REQUESTED_IP	((u_int8_t)  50)#define	TAG_IP_LEASE		((u_int8_t)  51)#define	TAG_OPT_OVERLOAD	((u_int8_t)  52)#define	TAG_TFTP_SERVER		((u_int8_t)  66)#define	TAG_BOOTFILENAME	((u_int8_t)  67)#define	TAG_DHCP_MESSAGE	((u_int8_t)  53)#define	TAG_SERVER_ID		((u_int8_t)  54)#define	TAG_PARM_REQUEST	((u_int8_t)  55)#define	TAG_MESSAGE		((u_int8_t)  56)#define	TAG_MAX_MSG_SIZE	((u_int8_t)  57)#define	TAG_RENEWAL_TIME	((u_int8_t)  58)#define	TAG_REBIND_TIME		((u_int8_t)  59)#define	TAG_VENDOR_CLASS	((u_int8_t)  60)#define	TAG_CLIENT_ID		((u_int8_t)  61)/* RFC 2241 */#define	TAG_NDS_SERVERS		((u_int8_t)  85)#define	TAG_NDS_TREE_NAME	((u_int8_t)  86)#define	TAG_NDS_CONTEXT		((u_int8_t)  87)/* RFC 2242 */#define	TAG_NDS_IPDOMAIN	((u_int8_t)  62)#define	TAG_NDS_IPINFO		((u_int8_t)  63)/* RFC 2485 */#define	TAG_OPEN_GROUP_UAP	((u_int8_t)  98)/* RFC 2563 */#define	TAG_DISABLE_AUTOCONF	((u_int8_t) 116)/* RFC 2610 */#define	TAG_SLP_DA		((u_int8_t)  78)#define	TAG_SLP_SCOPE		((u_int8_t)  79)/* RFC 2937 */#define	TAG_NS_SEARCH		((u_int8_t) 117)/* RFC 3011 */#define	TAG_IP4_SUBNET_SELECT	((u_int8_t) 118)/* RFC 3442 */#define TAG_CLASSLESS_STATIC_RT	((u_int8_t) 121)#define TAG_CLASSLESS_STA_RT_MS	((u_int8_t) 249)/* ftp://ftp.isi.edu/.../assignments/bootp-dhcp-extensions */#define	TAG_USER_CLASS		((u_int8_t)  77)#define	TAG_SLP_NAMING_AUTH	((u_int8_t)  80)#define	TAG_CLIENT_FQDN		((u_int8_t)  81)#define	TAG_AGENT_CIRCUIT	((u_int8_t)  82)#define	TAG_AGENT_REMOTE	((u_int8_t)  83)#define	TAG_AGENT_MASK		((u_int8_t)  84)#define	TAG_TZ_STRING		((u_int8_t)  88)#define	TAG_FQDN_OPTION		((u_int8_t)  89)#define	TAG_AUTH		((u_int8_t)  90)#define	TAG_VINES_SERVERS	((u_int8_t)  91)#define	TAG_SERVER_RANK		((u_int8_t)  92)#define	TAG_CLIENT_ARCH		((u_int8_t)  93)#define	TAG_CLIENT_NDI		((u_int8_t)  94)#define	TAG_CLIENT_GUID		((u_int8_t)  97)#define	TAG_LDAP_URL		((u_int8_t)  95)#define	TAG_6OVER4		((u_int8_t)  96)#define	TAG_PRINTER_NAME	((u_int8_t) 100)#define	TAG_MDHCP_SERVER	((u_int8_t) 101)#define	TAG_IPX_COMPAT		((u_int8_t) 110)#define	TAG_NETINFO_PARENT	((u_int8_t) 112)#define	TAG_NETINFO_PARENT_TAG	((u_int8_t) 113)#define	TAG_URL			((u_int8_t) 114)#define	TAG_FAILOVER		((u_int8_t) 115)#define	TAG_EXTENDED_REQUEST	((u_int8_t) 126)#define	TAG_EXTENDED_OPTION	((u_int8_t) 127)/* DHCP Message types (values for TAG_DHCP_MESSAGE option) */#define		DHCPDISCOVER	1#define		DHCPOFFER	2#define		DHCPREQUEST	3#define		DHCPDECLINE	4#define		DHCPACK		5#define		DHCPNAK		6#define		DHCPRELEASE	7#define		DHCPINFORM	8/* * "vendor" data permitted for CMU bootp clients. */struct cmu_vend {	u_int8_t	v_magic[4];	/* magic number */	u_int32_t	v_flags;	/* flags/opcodes, etc. */	struct in_addr	v_smask;	/* Subnet mask */	struct in_addr	v_dgate;	/* Default gateway */	struct in_addr	v_dns1, v_dns2; /* Domain name servers */	struct in_addr	v_ins1, v_ins2; /* IEN-116 name servers */	struct in_addr	v_ts1, v_ts2;	/* Time servers */	u_int8_t	v_unused[24];	/* currently unused */};/* v_flags values */#define VF_SMASK	1	/* Subnet mask field contains valid data *//* RFC 4702 DHCP Client FQDN Option */#define CLIENT_FQDN_FLAGS_S	0x01#define CLIENT_FQDN_FLAGS_O	0x02#define CLIENT_FQDN_FLAGS_E	0x04#define CLIENT_FQDN_FLAGS_N	0x08