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/*
* Bootstrap Protocol (BOOTP). RFC951 and RFC1048.
*
* This file specifies the "implementation-independent" BOOTP protocol
* information which is common to both client and server.
*
* Copyright 1988 by Carnegie Mellon.
*
* Permission to use, copy, modify, and distribute this program for any
* purpose and without fee is hereby granted, provided that this copyright
* and permission notice appear on all copies and supporting documentation,
* the name of Carnegie Mellon not be used in advertising or publicity
* pertaining to distribution of the program without specific prior
* permission, and notice be given in supporting documentation that copying
* and distribution is by permission of Carnegie Mellon and Stanford
* University. Carnegie Mellon makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*/
#ifndef _BOOTP_H_
#define _BOOTP_H_
#include <netinet/in.h>
struct bootp {
unsigned char bp_op; /* packet opcode type */
unsigned char bp_htype; /* hardware addr type */
unsigned char bp_hlen; /* hardware addr length */
unsigned char bp_hops; /* gateway hops */
unsigned int bp_xid; /* transaction ID */
unsigned short bp_secs; /* seconds since boot began */
unsigned short bp_flags;
struct in_addr bp_ciaddr; /* client IP address */
struct in_addr bp_yiaddr; /* 'your' IP address */
struct in_addr bp_siaddr; /* server IP address */
struct in_addr bp_giaddr; /* gateway IP address */
unsigned char bp_chaddr[16]; /* client hardware address */
unsigned char bp_sname[64]; /* server host name */
char bp_file[128]; /* boot file name */
#ifdef SUPPORT_DHCP
#define BOOTP_VENDSIZE 312
#else
#define BOOTP_VENDSIZE 64
#endif
unsigned char bp_vend[BOOTP_VENDSIZE]; /* vendor-specific area */
};
/*
* UDP port numbers, server and client.
*/
#define IPPORT_BOOTPS 67
#define IPPORT_BOOTPC 68
#define BOOTREPLY 2
#define BOOTREQUEST 1
/*
* Vendor magic cookie (v_magic) for CMU
*/
#define VM_CMU "CMU"
/*
* Vendor magic cookie (v_magic) for RFC1048
*/
#define VM_RFC1048 { 99, 130, 83, 99 }
/*
* RFC1048 tag values used to specify what information is being supplied in
* the vendor field of the packet.
*/
#define TAG_PAD ((unsigned char) 0)
#define TAG_SUBNET_MASK ((unsigned char) 1)
#define TAG_TIME_OFFSET ((unsigned char) 2)
#define TAG_GATEWAY ((unsigned char) 3)
#define TAG_TIME_SERVER ((unsigned char) 4)
#define TAG_NAME_SERVER ((unsigned char) 5)
#define TAG_DOMAIN_SERVER ((unsigned char) 6)
#define TAG_LOG_SERVER ((unsigned char) 7)
#define TAG_COOKIE_SERVER ((unsigned char) 8)
#define TAG_LPR_SERVER ((unsigned char) 9)
#define TAG_IMPRESS_SERVER ((unsigned char) 10)
#define TAG_RLP_SERVER ((unsigned char) 11)
#define TAG_HOSTNAME ((unsigned char) 12)
#define TAG_BOOTSIZE ((unsigned char) 13)
#define TAG_DUMPFILE ((unsigned char) 14)
#define TAG_DOMAINNAME ((unsigned char) 15)
#define TAG_SWAPSERVER ((unsigned char) 16)
#define TAG_ROOTPATH ((unsigned char) 17)
#define TAG_INTF_MTU ((unsigned char) 26)
#ifdef SUPPORT_DHCP
#define TAG_REQ_ADDR ((unsigned char) 50)
#define TAG_LEASETIME ((unsigned char) 51)
#define TAG_OVERLOAD ((unsigned char) 52)
#define TAG_DHCP_MSGTYPE ((unsigned char) 53)
#define TAG_SERVERID ((unsigned char) 54)
#define TAG_PARAM_REQ ((unsigned char) 55)
#define TAG_MSG ((unsigned char) 56)
#define TAG_MAXSIZE ((unsigned char) 57)
#define TAG_T1 ((unsigned char) 58)
#define TAG_T2 ((unsigned char) 59)
#define TAG_CLASSID ((unsigned char) 60)
#define TAG_CLIENTID ((unsigned char) 61)
#define TAG_USER_CLASS ((unsigned char) 77)
#endif
#define TAG_END ((unsigned char) 255)
#ifdef SUPPORT_DHCP
#define DHCPDISCOVER 1
#define DHCPOFFER 2
#define DHCPREQUEST 3
#define DHCPDECLINE 4
#define DHCPACK 5
#define DHCPNAK 6
#define DHCPRELEASE 7
#endif
/*
* "vendor" data permitted for CMU bootp clients.
*/
struct cmu_vend {
unsigned char v_magic[4]; /* magic number */
unsigned int v_flags; /* flags/opcodes, etc. */
struct in_addr v_smask; /* Subnet mask */
struct in_addr v_dgate; /* Default gateway */
struct in_addr v_dns1, v_dns2; /* Domain name servers */
struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */
struct in_addr v_ts1, v_ts2; /* Time servers */
unsigned char v_unused[25]; /* currently unused */
};
/* v_flags values */
#define VF_SMASK 1 /* Subnet mask field contains valid data */
/* cached bootp response/dhcp ack */
extern struct bootp *bootp_response;
extern size_t bootp_response_size;
#endif /* _BOOTP_H_ */
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