1 /* $NetBSD: bootp.h,v 1.7 2002/03/20 23:10:39 thorpej 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 23 24 struct bootp { 25 unsigned char bp_op; /* packet opcode type */ 26 unsigned char bp_htype; /* hardware addr type */ 27 unsigned char bp_hlen; /* hardware addr length */ 28 unsigned char bp_hops; /* gateway hops */ 29 unsigned int bp_xid; /* transaction ID */ 30 unsigned short bp_secs; /* seconds since boot began */ 31 unsigned short bp_flags; 32 struct in_addr bp_ciaddr; /* client IP address */ 33 struct in_addr bp_yiaddr; /* 'your' IP address */ 34 struct in_addr bp_siaddr; /* server IP address */ 35 struct in_addr bp_giaddr; /* gateway IP address */ 36 unsigned char bp_chaddr[16]; /* client hardware address */ 37 unsigned char bp_sname[64]; /* server host name */ 38 unsigned char bp_file[128]; /* boot file name */ 39 #ifdef SUPPORT_DHCP 40 #define BOOTP_VENDSIZE 312 41 #else 42 #define BOOTP_VENDSIZE 64 43 #endif 44 unsigned char bp_vend[BOOTP_VENDSIZE]; /* vendor-specific area */ 45 }; 46 47 /* 48 * UDP port numbers, server and client. 49 */ 50 #define IPPORT_BOOTPS 67 51 #define IPPORT_BOOTPC 68 52 53 #define BOOTREPLY 2 54 #define BOOTREQUEST 1 55 56 57 /* 58 * Vendor magic cookie (v_magic) for CMU 59 */ 60 #define VM_CMU "CMU" 61 62 /* 63 * Vendor magic cookie (v_magic) for RFC1048 64 */ 65 #define VM_RFC1048 { 99, 130, 83, 99 } 66 67 68 69 /* 70 * RFC1048 tag values used to specify what information is being supplied in 71 * the vendor field of the packet. 72 */ 73 74 #define TAG_PAD ((unsigned char) 0) 75 #define TAG_SUBNET_MASK ((unsigned char) 1) 76 #define TAG_TIME_OFFSET ((unsigned char) 2) 77 #define TAG_GATEWAY ((unsigned char) 3) 78 #define TAG_TIME_SERVER ((unsigned char) 4) 79 #define TAG_NAME_SERVER ((unsigned char) 5) 80 #define TAG_DOMAIN_SERVER ((unsigned char) 6) 81 #define TAG_LOG_SERVER ((unsigned char) 7) 82 #define TAG_COOKIE_SERVER ((unsigned char) 8) 83 #define TAG_LPR_SERVER ((unsigned char) 9) 84 #define TAG_IMPRESS_SERVER ((unsigned char) 10) 85 #define TAG_RLP_SERVER ((unsigned char) 11) 86 #define TAG_HOSTNAME ((unsigned char) 12) 87 #define TAG_BOOTSIZE ((unsigned char) 13) 88 #define TAG_DUMPFILE ((unsigned char) 14) 89 #define TAG_DOMAINNAME ((unsigned char) 15) 90 #define TAG_SWAPSERVER ((unsigned char) 16) 91 #define TAG_ROOTPATH ((unsigned char) 17) 92 93 #ifdef SUPPORT_DHCP 94 #define TAG_REQ_ADDR ((unsigned char) 50) 95 #define TAG_LEASETIME ((unsigned char) 51) 96 #define TAG_OVERLOAD ((unsigned char) 52) 97 #define TAG_DHCP_MSGTYPE ((unsigned char) 53) 98 #define TAG_SERVERID ((unsigned char) 54) 99 #define TAG_PARAM_REQ ((unsigned char) 55) 100 #define TAG_MSG ((unsigned char) 56) 101 #define TAG_MAXSIZE ((unsigned char) 57) 102 #define TAG_T1 ((unsigned char) 58) 103 #define TAG_T2 ((unsigned char) 59) 104 #define TAG_CLASSID ((unsigned char) 60) 105 #define TAG_CLIENTID ((unsigned char) 61) 106 #endif 107 108 #define TAG_END ((unsigned char) 255) 109 110 #ifdef SUPPORT_DHCP 111 #define DHCPDISCOVER 1 112 #define DHCPOFFER 2 113 #define DHCPREQUEST 3 114 #define DHCPDECLINE 4 115 #define DHCPACK 5 116 #define DHCPNAK 6 117 #define DHCPRELEASE 7 118 #endif 119 120 /* 121 * "vendor" data permitted for CMU bootp clients. 122 */ 123 124 struct cmu_vend { 125 unsigned char v_magic[4]; /* magic number */ 126 unsigned int v_flags; /* flags/opcodes, etc. */ 127 struct in_addr v_smask; /* Subnet mask */ 128 struct in_addr v_dgate; /* Default gateway */ 129 struct in_addr v_dns1, v_dns2; /* Domain name servers */ 130 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */ 131 struct in_addr v_ts1, v_ts2; /* Time servers */ 132 unsigned char v_unused[25]; /* currently unused */ 133 }; 134 135 136 /* v_flags values */ 137 #define VF_SMASK 1 /* Subnet mask field contains valid data */ 138 139 extern void bootp __P((int)); 140