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bootp.h revision 1.3 
      1 /*	$NetBSD: bootp.h,v 1.3 1996/09/26 23:22:01 cgd 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_unused;
     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 	unsigned char	bp_vend[64];	/* vendor-specific area */
     40 };
     41 
     42 /*
     43  * UDP port numbers, server and client.
     44  */
     45 #define	IPPORT_BOOTPS		67
     46 #define	IPPORT_BOOTPC		68
     47 
     48 #define BOOTREPLY		2
     49 #define BOOTREQUEST		1
     50 
     51 
     52 /*
     53  * Vendor magic cookie (v_magic) for CMU
     54  */
     55 #define VM_CMU		"CMU"
     56 
     57 /*
     58  * Vendor magic cookie (v_magic) for RFC1048
     59  */
     60 #define VM_RFC1048	{ 99, 130, 83, 99 }
     61 
     62 
     63 
     65 /*
     66  * RFC1048 tag values used to specify what information is being supplied in
     67  * the vendor field of the packet.
     68  */
     69 
     70 #define TAG_PAD			((unsigned char)   0)
     71 #define TAG_SUBNET_MASK		((unsigned char)   1)
     72 #define TAG_TIME_OFFSET		((unsigned char)   2)
     73 #define TAG_GATEWAY		((unsigned char)   3)
     74 #define TAG_TIME_SERVER		((unsigned char)   4)
     75 #define TAG_NAME_SERVER		((unsigned char)   5)
     76 #define TAG_DOMAIN_SERVER	((unsigned char)   6)
     77 #define TAG_LOG_SERVER		((unsigned char)   7)
     78 #define TAG_COOKIE_SERVER	((unsigned char)   8)
     79 #define TAG_LPR_SERVER		((unsigned char)   9)
     80 #define TAG_IMPRESS_SERVER	((unsigned char)  10)
     81 #define TAG_RLP_SERVER		((unsigned char)  11)
     82 #define TAG_HOSTNAME		((unsigned char)  12)
     83 #define TAG_BOOTSIZE		((unsigned char)  13)
     84 #define TAG_DUMPFILE		((unsigned char)  14)
     85 #define TAG_DOMAINNAME		((unsigned char)  15)
     86 #define TAG_SWAPSERVER		((unsigned char)  16)
     87 #define TAG_ROOTPATH		((unsigned char)  17)
     88 #define TAG_END			((unsigned char) 255)
     89 
     90 
     91 
     92 /*
     93  * "vendor" data permitted for CMU bootp clients.
     94  */
     95 
     96 struct cmu_vend {
     97 	unsigned char	v_magic[4];	/* magic number */
     98 	unsigned int	v_flags;	/* flags/opcodes, etc. */
     99 	struct in_addr	v_smask;	/* Subnet mask */
    100 	struct in_addr	v_dgate;	/* Default gateway */
    101 	struct in_addr	v_dns1, v_dns2; /* Domain name servers */
    102 	struct in_addr	v_ins1, v_ins2; /* IEN-116 name servers */
    103 	struct in_addr	v_ts1, v_ts2;	/* Time servers */
    104 	unsigned char	v_unused[25];	/* currently unused */
    105 };
    106 
    107 
    108 /* v_flags values */
    109 #define VF_SMASK	1	/* Subnet mask field contains valid data */
    110