1 /* @(#) $Header: bootp.h,v 1.2 90/05/29 21:29:16 leres Exp $ (LBL) */ 2 /* 3 * Bootstrap Protocol (BOOTP). RFC951 and RFC1048. 4 * 5 * This file specifies the "implementation-independent" BOOTP protocol 6 * information which is common to both client and server. 7 * 8 * Copyright 1988 by Carnegie Mellon. 9 * 10 * Permission to use, copy, modify, and distribute this program for any 11 * purpose and without fee is hereby granted, provided that this copyright 12 * and permission notice appear on all copies and supporting documentation, 13 * the name of Carnegie Mellon not be used in advertising or publicity 14 * pertaining to distribution of the program without specific prior 15 * permission, and notice be given in supporting documentation that copying 16 * and distribution is by permission of Carnegie Mellon and Stanford 17 * University. Carnegie Mellon makes no representations about the 18 * suitability of this software for any purpose. It is provided "as is" 19 * without express or implied warranty. 20 */ 21 22 23 struct bootp { 24 unsigned char bp_op; /* packet opcode type */ 25 unsigned char bp_htype; /* hardware addr type */ 26 unsigned char bp_hlen; /* hardware addr length */ 27 unsigned char bp_hops; /* gateway hops */ 28 unsigned long bp_xid; /* transaction ID */ 29 unsigned short bp_secs; /* seconds since boot began */ 30 unsigned short bp_unused; 31 struct in_addr bp_ciaddr; /* client IP address */ 32 struct in_addr bp_yiaddr; /* 'your' IP address */ 33 struct in_addr bp_siaddr; /* server IP address */ 34 struct in_addr bp_giaddr; /* gateway IP address */ 35 unsigned char bp_chaddr[16]; /* client hardware address */ 36 unsigned char bp_sname[64]; /* server host name */ 37 unsigned char bp_file[128]; /* boot file name */ 38 unsigned char bp_vend[64]; /* vendor-specific area */ 39 }; 40 41 /* 42 * UDP port numbers, server and client. 43 */ 44 #define IPPORT_BOOTPS 67 45 #define IPPORT_BOOTPC 68 46 47 #define BOOTREPLY 2 48 #define BOOTREQUEST 1 49 50 51 /* 52 * Vendor magic cookie (v_magic) for CMU 53 */ 54 #define VM_CMU "CMU" 55 56 /* 57 * Vendor magic cookie (v_magic) for RFC1048 58 */ 59 #define VM_RFC1048 { 99, 130, 83, 99 } 60 61 62 63 /* 64 * RFC1048 tag values used to specify what information is being supplied in 65 * the vendor field of the packet. 66 */ 67 68 #define TAG_PAD ((unsigned char) 0) 69 #define TAG_SUBNET_MASK ((unsigned char) 1) 70 #define TAG_TIME_OFFSET ((unsigned char) 2) 71 #define TAG_GATEWAY ((unsigned char) 3) 72 #define TAG_TIME_SERVER ((unsigned char) 4) 73 #define TAG_NAME_SERVER ((unsigned char) 5) 74 #define TAG_DOMAIN_SERVER ((unsigned char) 6) 75 #define TAG_LOG_SERVER ((unsigned char) 7) 76 #define TAG_COOKIE_SERVER ((unsigned char) 8) 77 #define TAG_LPR_SERVER ((unsigned char) 9) 78 #define TAG_IMPRESS_SERVER ((unsigned char) 10) 79 #define TAG_RLP_SERVER ((unsigned char) 11) 80 #define TAG_HOSTNAME ((unsigned char) 12) 81 #define TAG_BOOTSIZE ((unsigned char) 13) 82 #define TAG_END ((unsigned char) 255) 83 84 85 86 /* 87 * "vendor" data permitted for CMU bootp clients. 88 */ 89 90 struct cmu_vend { 91 unsigned char v_magic[4]; /* magic number */ 92 unsigned long v_flags; /* flags/opcodes, etc. */ 93 struct in_addr v_smask; /* Subnet mask */ 94 struct in_addr v_dgate; /* Default gateway */ 95 struct in_addr v_dns1, v_dns2; /* Domain name servers */ 96 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */ 97 struct in_addr v_ts1, v_ts2; /* Time servers */ 98 unsigned char v_unused[25]; /* currently unused */ 99 }; 100 101 102 /* v_flags values */ 103 #define VF_SMASK 1 /* Subnet mask field contains valid data */ 104