/* @(#) $Header: /tcpdump/master/tcpdump/bootp.h,v 1.19 2008-04-22 09:46:03 hannes 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 */
} UNALIGNED;
/*
* 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 */
} UNALIGNED;
/* 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