1/* $NetBSD: bootp.h,v 1.4 1997/09/06 13:55:57 drochner Exp $ */ 2 3/* 4 * Bootstrap Protocol (BOOTP). RFC951 and RFC1048. 5 * 6 * This file specifies the "implementation-independent" BOOTP protocol 7 * information which is common to both client and server. 8 * 9 * Copyright 1988 by Carnegie Mellon. 10 * 11 * Permission to use, copy, modify, and distribute this program for any 12 * purpose and without fee is hereby granted, provided that this copyright 13 * and permission notice appear on all copies and supporting documentation, 14 * the name of Carnegie Mellon not be used in advertising or publicity 15 * pertaining to distribution of the program without specific prior 16 * permission, and notice be given in supporting documentation that copying 17 * and distribution is by permission of Carnegie Mellon and Stanford 18 * University. Carnegie Mellon makes no representations about the 19 * suitability of this software for any purpose. It is provided "as is" 20 * without express or implied warranty. 21 * 22 * $FreeBSD: releng/11.0/lib/libstand/bootp.h 297150 2016-03-21 14:58:12Z ian $ 23 */ 24 25 26struct bootp { 27 unsigned char bp_op; /* packet opcode type */ 28 unsigned char bp_htype; /* hardware addr type */ 29 unsigned char bp_hlen; /* hardware addr length */ 30 unsigned char bp_hops; /* gateway hops */ 31 unsigned int bp_xid; /* transaction ID */ 32 unsigned short bp_secs; /* seconds since boot began */ 33 unsigned short bp_flags; 34 struct in_addr bp_ciaddr; /* client IP address */ 35 struct in_addr bp_yiaddr; /* 'your' IP address */ 36 struct in_addr bp_siaddr; /* server IP address */ 37 struct in_addr bp_giaddr; /* gateway IP address */ 38 unsigned char bp_chaddr[16]; /* client hardware address */ 39 unsigned char bp_sname[64]; /* server host name */ 40 unsigned char bp_file[128]; /* boot file name */ 41#ifdef SUPPORT_DHCP 42#define BOOTP_VENDSIZE 312 43#else 44#define BOOTP_VENDSIZE 64 45#endif 46 unsigned char bp_vend[BOOTP_VENDSIZE]; /* vendor-specific area */ 47}; 48 49/* 50 * UDP port numbers, server and client. 51 */ 52#define IPPORT_BOOTPS 67 53#define IPPORT_BOOTPC 68 54 55#define BOOTREPLY 2 56#define BOOTREQUEST 1 57 58 59/* 60 * Vendor magic cookie (v_magic) for CMU 61 */ 62#define VM_CMU "CMU" 63 64/* 65 * Vendor magic cookie (v_magic) for RFC1048 66 */ 67#define VM_RFC1048 { 99, 130, 83, 99 } 68 69 70 71/* 72 * RFC1048 tag values used to specify what information is being supplied in 73 * the vendor field of the packet. 74 */ 75 76#define TAG_PAD ((unsigned char) 0) 77#define TAG_SUBNET_MASK ((unsigned char) 1) 78#define TAG_TIME_OFFSET ((unsigned char) 2) 79#define TAG_GATEWAY ((unsigned char) 3) 80#define TAG_TIME_SERVER ((unsigned char) 4) 81#define TAG_NAME_SERVER ((unsigned char) 5) 82#define TAG_DOMAIN_SERVER ((unsigned char) 6) 83#define TAG_LOG_SERVER ((unsigned char) 7) 84#define TAG_COOKIE_SERVER ((unsigned char) 8) 85#define TAG_LPR_SERVER ((unsigned char) 9) 86#define TAG_IMPRESS_SERVER ((unsigned char) 10) 87#define TAG_RLP_SERVER ((unsigned char) 11) 88#define TAG_HOSTNAME ((unsigned char) 12) 89#define TAG_BOOTSIZE ((unsigned char) 13) 90#define TAG_DUMPFILE ((unsigned char) 14) 91#define TAG_DOMAINNAME ((unsigned char) 15) 92#define TAG_SWAPSERVER ((unsigned char) 16) 93#define TAG_ROOTPATH ((unsigned char) 17) 94#define TAG_INTF_MTU ((unsigned char) 26) 95 96#ifdef SUPPORT_DHCP 97#define TAG_REQ_ADDR ((unsigned char) 50) 98#define TAG_LEASETIME ((unsigned char) 51) 99#define TAG_OVERLOAD ((unsigned char) 52) 100#define TAG_DHCP_MSGTYPE ((unsigned char) 53) 101#define TAG_SERVERID ((unsigned char) 54) 102#define TAG_PARAM_REQ ((unsigned char) 55) 103#define TAG_MSG ((unsigned char) 56) 104#define TAG_MAXSIZE ((unsigned char) 57) 105#define TAG_T1 ((unsigned char) 58) 106#define TAG_T2 ((unsigned char) 59) 107#define TAG_CLASSID ((unsigned char) 60) 108#define TAG_CLIENTID ((unsigned char) 61) 109#endif 110 111#define TAG_END ((unsigned char) 255) 112 113#ifdef SUPPORT_DHCP 114#define DHCPDISCOVER 1 115#define DHCPOFFER 2 116#define DHCPREQUEST 3 117#define DHCPDECLINE 4 118#define DHCPACK 5 119#define DHCPNAK 6 120#define DHCPRELEASE 7 121#endif 122 123/* 124 * bootp flags 125 */ 126#define BOOTP_NONE 0x0000 /* No flags */ 127#define BOOTP_PXE 0x0001 /* Booting from PXE. */ 128 129/* 130 * "vendor" data permitted for CMU bootp clients. 131 */ 132 133struct cmu_vend { 134 unsigned char v_magic[4]; /* magic number */ 135 unsigned int v_flags; /* flags/opcodes, etc. */ 136 struct in_addr v_smask; /* Subnet mask */ 137 struct in_addr v_dgate; /* Default gateway */ 138 struct in_addr v_dns1, v_dns2; /* Domain name servers */ 139 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */ 140 struct in_addr v_ts1, v_ts2; /* Time servers */ 141 unsigned char v_unused[25]; /* currently unused */ 142}; 143 144 145/* v_flags values */ 146#define VF_SMASK 1 /* Subnet mask field contains valid data */ 147