1/* $OpenBSD: bootp.h,v 1.8 2007/10/07 16:41:05 deraadt Exp $ */ 2 3/* @(#) $Id: bootp.h,v 1.8 2007/10/07 16:41:05 deraadt Exp $ (LBL) */ 4/* 5 * Bootstrap Protocol (BOOTP). RFC951 and RFC1048. 6 * 7 * This file specifies the "implementation-independent" BOOTP protocol 8 * information which is common to both client and server. 9 * 10 * Copyright 1988 by Carnegie Mellon. 11 * 12 * Permission to use, copy, modify, and distribute this program for any 13 * purpose and without fee is hereby granted, provided that this copyright 14 * and permission notice appear on all copies and supporting documentation, 15 * the name of Carnegie Mellon not be used in advertising or publicity 16 * pertaining to distribution of the program without specific prior 17 * permission, and notice be given in supporting documentation that copying 18 * and distribution is by permission of Carnegie Mellon and Stanford 19 * University. Carnegie Mellon makes no representations about the 20 * suitability of this software for any purpose. It is provided "as is" 21 * without express or implied warranty. 22 */ 23 24 25struct bootp { 26 unsigned char bp_op; /* packet opcode type */ 27 unsigned char bp_htype; /* hardware addr type */ 28 unsigned char bp_hlen; /* hardware addr length */ 29 unsigned char bp_hops; /* gateway hops */ 30 u_int32_t bp_xid; /* transaction ID */ 31 unsigned short bp_secs; /* seconds since boot began */ 32 unsigned short bp_flags; /* flags: 0x8000 is broadcast */ 33 struct in_addr bp_ciaddr; /* client IP address */ 34 struct in_addr bp_yiaddr; /* 'your' IP address */ 35 struct in_addr bp_siaddr; /* server IP address */ 36 struct in_addr bp_giaddr; /* gateway IP address */ 37 unsigned char bp_chaddr[16]; /* client hardware address */ 38 unsigned char bp_sname[64]; /* server host name */ 39 unsigned char bp_file[128]; /* boot file name */ 40 unsigned char bp_vend[64]; /* vendor-specific area */ 41}; 42 43/* 44 * UDP port numbers, server and client. 45 */ 46#define IPPORT_BOOTPS 67 47#define IPPORT_BOOTPC 68 48 49#define BOOTREPLY 2 50#define BOOTREQUEST 1 51 52 53/* 54 * Vendor magic cookie (v_magic) for CMU 55 */ 56#define VM_CMU "CMU" 57 58/* 59 * Vendor magic cookie (v_magic) for RFC1048 60 */ 61#define VM_RFC1048 { 99, 130, 83, 99 } 62 63 64 65/* 66 * RFC1048 tag values used to specify what information is being supplied in 67 * the vendor field of the packet. 68 */ 69 70#define TAG_PAD ((unsigned char) 0) 71#define TAG_SUBNET_MASK ((unsigned char) 1) 72#define TAG_TIME_OFFSET ((unsigned char) 2) 73#define TAG_GATEWAY ((unsigned char) 3) 74#define TAG_TIME_SERVER ((unsigned char) 4) 75#define TAG_NAME_SERVER ((unsigned char) 5) 76#define TAG_DOMAIN_SERVER ((unsigned char) 6) 77#define TAG_LOG_SERVER ((unsigned char) 7) 78#define TAG_COOKIE_SERVER ((unsigned char) 8) 79#define TAG_LPR_SERVER ((unsigned char) 9) 80#define TAG_IMPRESS_SERVER ((unsigned char) 10) 81#define TAG_RLP_SERVER ((unsigned char) 11) 82#define TAG_HOSTNAME ((unsigned char) 12) 83#define TAG_BOOTSIZE ((unsigned char) 13) 84#define TAG_END ((unsigned char) 255) 85/* RFC1497 tags */ 86#define TAG_DUMPPATH ((unsigned char) 14) 87#define TAG_DOMAINNAME ((unsigned char) 15) 88#define TAG_SWAP_SERVER ((unsigned char) 16) 89#define TAG_ROOTPATH ((unsigned char) 17) 90#define TAG_EXTPATH ((unsigned char) 18) 91/* RFC2132 */ 92#define TAG_IP_FORWARD ((unsigned char) 19) 93#define TAG_NL_SRCRT ((unsigned char) 20) 94#define TAG_PFILTERS ((unsigned char) 21) 95#define TAG_REASS_SIZE ((unsigned char) 22) 96#define TAG_DEF_TTL ((unsigned char) 23) 97#define TAG_MTU_TIMEOUT ((unsigned char) 24) 98#define TAG_MTU_TABLE ((unsigned char) 25) 99#define TAG_INT_MTU ((unsigned char) 26) 100#define TAG_LOCAL_SUBNETS ((unsigned char) 27) 101#define TAG_BROAD_ADDR ((unsigned char) 28) 102#define TAG_DO_MASK_DISC ((unsigned char) 29) 103#define TAG_SUPPLY_MASK ((unsigned char) 30) 104#define TAG_DO_RDISC ((unsigned char) 31) 105#define TAG_RTR_SOL_ADDR ((unsigned char) 32) 106#define TAG_STATIC_ROUTE ((unsigned char) 33) 107#define TAG_USE_TRAILERS ((unsigned char) 34) 108#define TAG_ARP_TIMEOUT ((unsigned char) 35) 109#define TAG_ETH_ENCAP ((unsigned char) 36) 110#define TAG_TCP_TTL ((unsigned char) 37) 111#define TAG_TCP_KEEPALIVE ((unsigned char) 38) 112#define TAG_KEEPALIVE_GO ((unsigned char) 39) 113#define TAG_NIS_DOMAIN ((unsigned char) 40) 114#define TAG_NIS_SERVERS ((unsigned char) 41) 115#define TAG_NTP_SERVERS ((unsigned char) 42) 116#define TAG_VENDOR_OPTS ((unsigned char) 43) 117#define TAG_NETBIOS_NS ((unsigned char) 44) 118#define TAG_NETBIOS_DDS ((unsigned char) 45) 119#define TAG_NETBIOS_NODE ((unsigned char) 46) 120#define TAG_NETBIOS_SCOPE ((unsigned char) 47) 121#define TAG_XWIN_FS ((unsigned char) 48) 122#define TAG_XWIN_DM ((unsigned char) 49) 123#define TAG_NIS_P_DOMAIN ((unsigned char) 64) 124#define TAG_NIS_P_SERVERS ((unsigned char) 65) 125#define TAG_MOBILE_HOME ((unsigned char) 68) 126#define TAG_SMPT_SERVER ((unsigned char) 69) 127#define TAG_POP3_SERVER ((unsigned char) 70) 128#define TAG_NNTP_SERVER ((unsigned char) 71) 129#define TAG_WWW_SERVER ((unsigned char) 72) 130#define TAG_FINGER_SERVER ((unsigned char) 73) 131#define TAG_IRC_SERVER ((unsigned char) 74) 132#define TAG_STREETTALK_SRVR ((unsigned char) 75) 133#define TAG_STREETTALK_STDA ((unsigned char) 76) 134/* DHCP options */ 135#define TAG_REQUESTED_IP ((unsigned char) 50) 136#define TAG_IP_LEASE ((unsigned char) 51) 137#define TAG_OPT_OVERLOAD ((unsigned char) 52) 138#define TAG_TFTP_SERVER ((unsigned char) 66) 139#define TAG_BOOTFILENAME ((unsigned char) 67) 140#define TAG_DHCP_MESSAGE ((unsigned char) 53) 141#define TAG_SERVER_ID ((unsigned char) 54) 142#define TAG_PARM_REQUEST ((unsigned char) 55) 143#define TAG_MESSAGE ((unsigned char) 56) 144#define TAG_MAX_MSG_SIZE ((unsigned char) 57) 145#define TAG_RENEWAL_TIME ((unsigned char) 58) 146#define TAG_REBIND_TIME ((unsigned char) 59) 147#define TAG_VENDOR_CLASS ((unsigned char) 60) 148#define TAG_CLIENT_ID ((unsigned char) 61) 149 150/* DHCP Message types (values for TAG_DHCP_MESSAGE option) */ 151#define DHCPDISCOVER 1 152#define DHCPOFFER 2 153#define DHCPREQUEST 3 154#define DHCPDECLINE 4 155#define DHCPACK 5 156#define DHCPNAK 6 157#define DHCPRELEASE 7 158#define DHCPINFORM 8 159 160 161/* 162 * "vendor" data permitted for CMU bootp clients. 163 */ 164 165struct cmu_vend { 166 unsigned char v_magic[4]; /* magic number */ 167 u_int32_t v_flags; /* flags/opcodes, etc. */ 168 struct in_addr v_smask; /* Subnet mask */ 169 struct in_addr v_dgate; /* Default gateway */ 170 struct in_addr v_dns1, v_dns2; /* Domain name servers */ 171 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */ 172 struct in_addr v_ts1, v_ts2; /* Time servers */ 173 unsigned char v_unused[24]; /* currently unused */ 174}; 175 176 177/* v_flags values */ 178#define VF_SMASK 1 /* Subnet mask field contains valid data */ 179