1 /* $OpenBSD: bootp.h,v 1.5 2003/08/11 06:23:09 deraadt Exp $ */ 2 /* $NetBSD: bootp.h,v 1.3 1996/09/26 23:22:01 cgd Exp $ */ 3 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 #define BP_CHADDR_LEN 16 25 #define BP_SNAME_LEN 64 26 #define BP_FILE_LEN 128 27 #define BP_VEND_LEN 64 28 #define BP_MINPKTSZ 300 /* to check sizeof(struct bootp) */ 29 30 31 struct bootp { 32 u_char bp_op; /* packet opcode type */ 33 u_char bp_htype; /* hardware addr type */ 34 u_char bp_hlen; /* hardware addr length */ 35 u_char bp_hops; /* gateway hops */ 36 u_int bp_xid; /* transaction ID */ 37 u_short bp_secs; /* seconds since boot began */ 38 u_short bp_flags; /* RFC1532 broadcast, etc. */ 39 struct in_addr bp_ciaddr; /* client IP address */ 40 struct in_addr bp_yiaddr; /* 'your' IP address */ 41 struct in_addr bp_siaddr; /* server IP address */ 42 struct in_addr bp_giaddr; /* gateway IP address */ 43 u_char bp_chaddr[BP_CHADDR_LEN];/* client hardware address */ 44 u_char bp_sname[BP_SNAME_LEN]; /* server host name */ 45 u_char bp_file[BP_FILE_LEN]; /* boot file name */ 46 u_char bp_vend[BP_VEND_LEN]; /* 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 * Hardware types from Assigned Numbers RFC. 60 */ 61 #define HTYPE_ETHERNET 1 62 #define HTYPE_EXP_ETHERNET 2 63 #define HTYPE_AX25 3 64 #define HTYPE_PRONET 4 65 #define HTYPE_CHAOS 5 66 #define HTYPE_IEEE802 6 67 #define HTYPE_ARCNET 7 68 69 /* 70 * Vendor magic cookie (v_magic) for CMU 71 */ 72 #define VM_CMU "CMU" 73 74 /* 75 * Vendor magic cookie (v_magic) for RFC1048 76 */ 77 #define VM_RFC1048 { 99, 130, 83, 99 } 78 79 80 81 /* 82 * RFC1048 tag values used to specify what information is being supplied in 83 * the vendor field of the packet. 84 */ 85 86 #define TAG_PAD ((unsigned char) 0) 87 #define TAG_SUBNET_MASK ((unsigned char) 1) 88 #define TAG_TIME_OFFSET ((unsigned char) 2) 89 #define TAG_GATEWAY ((unsigned char) 3) 90 #define TAG_TIME_SERVER ((unsigned char) 4) 91 #define TAG_NAME_SERVER ((unsigned char) 5) 92 #define TAG_DOMAIN_SERVER ((unsigned char) 6) 93 #define TAG_LOG_SERVER ((unsigned char) 7) 94 #define TAG_COOKIE_SERVER ((unsigned char) 8) 95 #define TAG_LPR_SERVER ((unsigned char) 9) 96 #define TAG_IMPRESS_SERVER ((unsigned char) 10) 97 #define TAG_RLP_SERVER ((unsigned char) 11) 98 #define TAG_HOSTNAME ((unsigned char) 12) 99 #define TAG_BOOTSIZE ((unsigned char) 13) 100 #define TAG_DUMPFILE ((unsigned char) 14) 101 #define TAG_DOMAINNAME ((unsigned char) 15) 102 #define TAG_SWAPSERVER ((unsigned char) 16) 103 #define TAG_ROOTPATH ((unsigned char) 17) 104 #define TAG_EXTEN_FILE ((unsigned char) 18) 105 #define TAG_NIS_DOMAIN ((unsigned char) 40) 106 #define TAG_NIS_SERVER ((unsigned char) 41) 107 #define TAG_NTP_SERVER ((unsigned char) 42) 108 #define TAG_MAX_MSGSZ ((unsigned char) 57) 109 #define TAG_END ((unsigned char) 255) 110 111 112 113 /* 114 * "vendor" data permitted for CMU bootp clients. 115 */ 116 117 struct cmu_vend { 118 unsigned char v_magic[4]; /* magic number */ 119 unsigned int v_flags; /* flags/opcodes, etc. */ 120 struct in_addr v_smask; /* Subnet mask */ 121 struct in_addr v_dgate; /* Default gateway */ 122 struct in_addr v_dns1, v_dns2; /* Domain name servers */ 123 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */ 124 struct in_addr v_ts1, v_ts2; /* Time servers */ 125 unsigned char v_unused[25]; /* currently unused */ 126 }; 127 128 /* v_flags values */ 129 #define VF_SMASK 1 /* Subnet mask field contains valid data */ 130 131 void bootp(int); 132