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/* @(#) $Header: /tcpdump/master/tcpdump/bootp.h,v 1.8 1999/10/17 23:35:46 mcr 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 {
unsigned char bp_op; /* packet opcode type */
unsigned char bp_htype; /* hardware addr type */
unsigned char bp_hlen; /* hardware addr length */
unsigned char bp_hops; /* gateway hops */
u_int32_t bp_xid; /* transaction ID */
unsigned short bp_secs; /* seconds since boot began */
unsigned short bp_flags; /* flags: 0x8000 is broadcast */
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 */
unsigned char bp_chaddr[16]; /* client hardware address */
unsigned char bp_sname[64]; /* server host name */
unsigned char bp_file[128]; /* boot file name */
unsigned char bp_vend[64]; /* vendor-specific area */
};
/*
* UDP port numbers, server and client.
*/
#define IPPORT_BOOTPS 67
#define IPPORT_BOOTPC 68
#define BOOTREPLY 2
#define BOOTREQUEST 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 ((unsigned char) 0)
#define TAG_SUBNET_MASK ((unsigned char) 1)
#define TAG_TIME_OFFSET ((unsigned char) 2)
#define TAG_GATEWAY ((unsigned char) 3)
#define TAG_TIME_SERVER ((unsigned char) 4)
#define TAG_NAME_SERVER ((unsigned char) 5)
#define TAG_DOMAIN_SERVER ((unsigned char) 6)
#define TAG_LOG_SERVER ((unsigned char) 7)
#define TAG_COOKIE_SERVER ((unsigned char) 8)
#define TAG_LPR_SERVER ((unsigned char) 9)
#define TAG_IMPRESS_SERVER ((unsigned char) 10)
#define TAG_RLP_SERVER ((unsigned char) 11)
#define TAG_HOSTNAME ((unsigned char) 12)
#define TAG_BOOTSIZE ((unsigned char) 13)
#define TAG_END ((unsigned char) 255)
/* RFC1497 tags */
#define TAG_DUMPPATH ((unsigned char) 14)
#define TAG_DOMAINNAME ((unsigned char) 15)
#define TAG_SWAP_SERVER ((unsigned char) 16)
#define TAG_ROOTPATH ((unsigned char) 17)
#define TAG_EXTPATH ((unsigned char) 18)
/* RFC2132 */
#define TAG_IP_FORWARD ((unsigned char) 19)
#define TAG_NL_SRCRT ((unsigned char) 20)
#define TAG_PFILTERS ((unsigned char) 21)
#define TAG_REASS_SIZE ((unsigned char) 22)
#define TAG_DEF_TTL ((unsigned char) 23)
#define TAG_MTU_TIMEOUT ((unsigned char) 24)
#define TAG_MTU_TABLE ((unsigned char) 25)
#define TAG_INT_MTU ((unsigned char) 26)
#define TAG_LOCAL_SUBNETS ((unsigned char) 27)
#define TAG_BROAD_ADDR ((unsigned char) 28)
#define TAG_DO_MASK_DISC ((unsigned char) 29)
#define TAG_SUPPLY_MASK ((unsigned char) 30)
#define TAG_DO_RDISC ((unsigned char) 31)
#define TAG_RTR_SOL_ADDR ((unsigned char) 32)
#define TAG_STATIC_ROUTE ((unsigned char) 33)
#define TAG_USE_TRAILERS ((unsigned char) 34)
#define TAG_ARP_TIMEOUT ((unsigned char) 35)
#define TAG_ETH_ENCAP ((unsigned char) 36)
#define TAG_TCP_TTL ((unsigned char) 37)
#define TAG_TCP_KEEPALIVE ((unsigned char) 38)
#define TAG_KEEPALIVE_GO ((unsigned char) 39)
#define TAG_NIS_DOMAIN ((unsigned char) 40)
#define TAG_NIS_SERVERS ((unsigned char) 41)
#define TAG_NTP_SERVERS ((unsigned char) 42)
#define TAG_VENDOR_OPTS ((unsigned char) 43)
#define TAG_NETBIOS_NS ((unsigned char) 44)
#define TAG_NETBIOS_DDS ((unsigned char) 45)
#define TAG_NETBIOS_NODE ((unsigned char) 46)
#define TAG_NETBIOS_SCOPE ((unsigned char) 47)
#define TAG_XWIN_FS ((unsigned char) 48)
#define TAG_XWIN_DM ((unsigned char) 49)
#define TAG_NIS_P_DOMAIN ((unsigned char) 64)
#define TAG_NIS_P_SERVERS ((unsigned char) 65)
#define TAG_MOBILE_HOME ((unsigned char) 68)
#define TAG_SMPT_SERVER ((unsigned char) 69)
#define TAG_POP3_SERVER ((unsigned char) 70)
#define TAG_NNTP_SERVER ((unsigned char) 71)
#define TAG_WWW_SERVER ((unsigned char) 72)
#define TAG_FINGER_SERVER ((unsigned char) 73)
#define TAG_IRC_SERVER ((unsigned char) 74)
#define TAG_STREETTALK_SRVR ((unsigned char) 75)
#define TAG_STREETTALK_STDA ((unsigned char) 76)
/* DHCP options */
#define TAG_REQUESTED_IP ((unsigned char) 50)
#define TAG_IP_LEASE ((unsigned char) 51)
#define TAG_OPT_OVERLOAD ((unsigned char) 52)
#define TAG_TFTP_SERVER ((unsigned char) 66)
#define TAG_BOOTFILENAME ((unsigned char) 67)
#define TAG_DHCP_MESSAGE ((unsigned char) 53)
#define TAG_SERVER_ID ((unsigned char) 54)
#define TAG_PARM_REQUEST ((unsigned char) 55)
#define TAG_MESSAGE ((unsigned char) 56)
#define TAG_MAX_MSG_SIZE ((unsigned char) 57)
#define TAG_RENEWAL_TIME ((unsigned char) 58)
#define TAG_REBIND_TIME ((unsigned char) 59)
#define TAG_VENDOR_CLASS ((unsigned char) 60)
#define TAG_CLIENT_ID ((unsigned char) 61)
/* 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 {
unsigned char 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 */
unsigned char v_unused[24]; /* currently unused */
};
/* v_flags values */
#define VF_SMASK 1 /* Subnet mask field contains valid data */
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