1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * Bootstrap Protocol (BOOTP). RFC 951. 30 */ 31/* 32 * HISTORY 33 * 34 * 14 May 1992 ? at NeXT 35 * Added correct padding to struct nextvend. This is 36 * needed for the i386 due to alignment differences wrt 37 * the m68k. Also adjusted the size of the array fields 38 * because the NeXT vendor area was overflowing the bootp 39 * packet. 40 */ 41 42#include <netinet/udp.h> 43 44#define iaddr_t struct in_addr 45 46struct bootp { 47 u_char bp_op; /* packet opcode type */ 48#define BOOTREQUEST 1 49#define BOOTREPLY 2 50 u_char bp_htype; /* hardware addr type */ 51 u_char bp_hlen; /* hardware addr length */ 52 u_char bp_hops; /* gateway hops */ 53 u_int32_t bp_xid; /* transaction ID */ 54 u_short bp_secs; /* seconds since boot began */ 55 u_short bp_unused; 56 iaddr_t bp_ciaddr; /* client IP address */ 57 iaddr_t bp_yiaddr; /* 'your' IP address */ 58 iaddr_t bp_siaddr; /* server IP address */ 59 iaddr_t bp_giaddr; /* gateway IP address */ 60 u_char bp_chaddr[16]; /* client hardware address */ 61 u_char bp_sname[64]; /* server host name */ 62 u_char bp_file[128]; /* boot file name */ 63 u_char bp_vend[64]; /* vendor-specific area */ 64}; 65 66/* 67 * UDP port numbers, server and client. 68 */ 69#define IPPORT_BOOTPS 67 70#define IPPORT_BOOTPC 68 71 72/* 73 * "vendor" data permitted for Stanford boot clients. 74 */ 75struct vend { 76 u_char v_magic[4]; /* magic number */ 77 u_int32_t v_flags; /* flags/opcodes, etc. */ 78 u_char v_unused[56]; /* currently unused */ 79}; 80#define VM_STANFORD "STAN" /* v_magic for Stanford */ 81 82/* v_flags values */ 83#define VF_PCBOOT 1 /* an IBMPC or Mac wants environment info */ 84#define VF_HELP 2 /* help me, I'm not registered */ 85 86#define NVMAXTEXT 55 /* don't change this, it just fits RFC951 */ 87struct nextvend { 88 u_char nv_magic[4]; /* Magic number for vendor specificity */ 89 u_char nv_version; /* NeXT protocol version */ 90 /* 91 * Round the beginning 92 * of the union to a 16 93 * bit boundary due to 94 * struct/union alignment 95 * on the m68k. 96 */ 97 unsigned short :0; 98 union { 99 u_char NV0[58]; 100 struct { 101 u_char NV1_opcode; /* opcode - Version 1 */ 102 u_char NV1_xid; /* transcation id */ 103 u_char NV1_text[NVMAXTEXT]; /* text */ 104 u_char NV1_null; /* null terminator */ 105 } NV1; 106 } nv_U; 107}; 108#define nv_unused nv_U.NV0 109#define nv_opcode nv_U.NV1.NV1_opcode 110#define nv_xid nv_U.NV1.NV1_xid 111#define nv_text nv_U.NV1.NV1_text 112#define nv_null nv_U.NV1.NV1_null 113 114/* Magic number */ 115#define VM_NEXT "NeXT" /* v_magic for NeXT, Inc. */ 116 117/* Opcodes */ 118#define BPOP_OK 0 119#define BPOP_QUERY 1 120#define BPOP_QUERY_NE 2 121#define BPOP_ERROR 3 122 123struct bootp_packet { 124 struct ip bp_ip; 125 struct udphdr bp_udp; 126 struct bootp bp_bootp; 127}; 128 129#define BOOTP_PKTSIZE (sizeof (struct bootp_packet)) 130 131/* backoffs must be masks */ 132#define BOOTP_MIN_BACKOFF 0x7ff /* 2.048 sec */ 133#define BOOTP_MAX_BACKOFF 0xffff /* 65.535 sec */ 134#define BOOTP_RETRY 6 /* # retries */ 135 136