xref: /titanic_41/usr/src/grub/grub-0.97/netboot/bootp.h (revision 1b8adde7ba7d5e04395c141c5400dc2cffd7d809)

#ifndef	_BOOTP_H
#define	_BOOTP_H

#include "if_ether.h"
#include "ip.h"
#include "udp.h"

#ifndef	MAX_BOOTP_RETRIES
#define MAX_BOOTP_RETRIES	20
#endif

#ifdef	ALTERNATE_DHCP_PORTS_1067_1068
#undef	NON_STANDARD_BOOTP_SERVER
#define	NON_STANDARD_BOOTP_SERVER	1067
#undef	NON_STANDARD_BOOTP_CLIENT
#define	NON_STANDARD_BOOTP_CLIENT	1068
#endif

#ifdef	NON_STANDARD_BOOTP_SERVER
#define	BOOTP_SERVER	NON_STANDARD_BOOTP_SERVER
#else
#define BOOTP_SERVER	67
#endif
#ifdef	NON_STANDARD_BOOTP_CLIENT
#define	BOOTP_CLIENT	NON_STANDARD_BOOTP_CLIENT
#else
#define BOOTP_CLIENT	68
#endif

#define BOOTP_REQUEST	1
#define BOOTP_REPLY	2

#define TAG_LEN(p)		(*((p)+1))
#define RFC1533_COOKIE		99, 130, 83, 99
#define RFC1533_PAD		0
#define RFC1533_NETMASK		1
#define RFC1533_TIMEOFFSET	2
#define RFC1533_GATEWAY		3
#define RFC1533_TIMESERVER	4
#define RFC1533_IEN116NS	5
#define RFC1533_DNS		6
#define RFC1533_LOGSERVER	7
#define RFC1533_COOKIESERVER	8
#define RFC1533_LPRSERVER	9
#define RFC1533_IMPRESSSERVER	10
#define RFC1533_RESOURCESERVER	11
#define RFC1533_HOSTNAME	12
#define RFC1533_BOOTFILESIZE	13
#define RFC1533_MERITDUMPFILE	14
#define RFC1533_DOMAINNAME	15
#define RFC1533_SWAPSERVER	16
#define RFC1533_ROOTPATH	17
#define RFC1533_EXTENSIONPATH	18
#define RFC1533_IPFORWARDING	19
#define RFC1533_IPSOURCEROUTING	20
#define RFC1533_IPPOLICYFILTER	21
#define RFC1533_IPMAXREASSEMBLY	22
#define RFC1533_IPTTL		23
#define RFC1533_IPMTU		24
#define RFC1533_IPMTUPLATEAU	25
#define RFC1533_INTMTU		26
#define RFC1533_INTLOCALSUBNETS	27
#define RFC1533_INTBROADCAST	28
#define RFC1533_INTICMPDISCOVER	29
#define RFC1533_INTICMPRESPOND	30
#define RFC1533_INTROUTEDISCOVER 31
#define RFC1533_INTROUTESOLICIT	32
#define RFC1533_INTSTATICROUTES	33
#define RFC1533_LLTRAILERENCAP	34
#define RFC1533_LLARPCACHETMO	35
#define RFC1533_LLETHERNETENCAP	36
#define RFC1533_TCPTTL		37
#define RFC1533_TCPKEEPALIVETMO	38
#define RFC1533_TCPKEEPALIVEGB	39
#define RFC1533_NISDOMAIN	40
#define RFC1533_NISSERVER	41
#define RFC1533_NTPSERVER	42
#define RFC1533_VENDOR		43
#define RFC1533_NBNS		44
#define RFC1533_NBDD		45
#define RFC1533_NBNT		46
#define RFC1533_NBSCOPE		47
#define RFC1533_XFS		48
#define RFC1533_XDM		49
#ifndef	NO_DHCP_SUPPORT
#define RFC2132_REQ_ADDR	50
#define RFC2132_MSG_TYPE	53
#define RFC2132_SRV_ID		54
#define RFC2132_PARAM_LIST	55
#define RFC2132_MAX_SIZE	57
#define	RFC2132_VENDOR_CLASS_ID	60

#define DHCPDISCOVER		1
#define DHCPOFFER		2
#define DHCPREQUEST		3
#define DHCPACK			5
#endif	/* NO_DHCP_SUPPORT */

#define RFC1533_VENDOR_MAJOR	0
#define RFC1533_VENDOR_MINOR	0

#define RFC1533_VENDOR_MAGIC	128
#define RFC1533_VENDOR_ADDPARM	129
#define	RFC1533_VENDOR_ETHDEV	130
#ifdef	IMAGE_FREEBSD
#define RFC1533_VENDOR_HOWTO    132
#define RFC1533_VENDOR_KERNEL_ENV    133
#endif
#define RFC1533_VENDOR_ETHERBOOT_ENCAP 150
#define RFC1533_VENDOR_MNUOPTS	160
#define RFC1533_VENDOR_NIC_DEV_ID 175
#define RFC1533_VENDOR_SELECTION 176
#define RFC1533_VENDOR_ARCH     177
#define RFC1533_VENDOR_MOTD	184
#define RFC1533_VENDOR_NUMOFMOTD 8
#define RFC1533_VENDOR_IMG	192
#define RFC1533_VENDOR_NUMOFIMG	16

#define RFC1533_VENDOR_CONFIGFILE 150

#define RFC1533_END		255

#define BOOTP_VENDOR_LEN	64

#define DHCP_OPT_LEN		312

/* Format of a bootp packet */
struct bootp_t {
	uint8_t  bp_op;
	uint8_t  bp_htype;
	uint8_t  bp_hlen;
	uint8_t  bp_hops;
	uint32_t bp_xid;
	uint16_t bp_secs;
	uint16_t unused;
	in_addr bp_ciaddr;
	in_addr bp_yiaddr;
	in_addr bp_siaddr;
	in_addr bp_giaddr;
	uint8_t  bp_hwaddr[16];
	uint8_t  bp_sname[64];
	char     bp_file[128];
	uint8_t  bp_vend[BOOTP_VENDOR_LEN];
};

struct dhcp_t {
	uint8_t  bp_op;
	uint8_t  bp_htype;
	uint8_t  bp_hlen;
	uint8_t  bp_hops;
	uint32_t bp_xid;
	uint16_t bp_secs;
	uint16_t bp_flag;
	in_addr bp_ciaddr;
	in_addr bp_yiaddr;
	in_addr bp_siaddr;
	in_addr bp_giaddr;
	uint8_t  bp_hwaddr[16];
	uint8_t  bp_sname[64];
	char     bp_file[128];
	uint8_t  bp_vend[DHCP_OPT_LEN];
};

/* Format of a bootp IP packet */
struct bootpip_t
{
	struct iphdr ip;
	struct udphdr udp;
	struct bootp_t bp;
};
struct dhcpip_t
{
	struct iphdr ip;
	struct udphdr udp;
	struct dhcp_t bp;
};

#define MAX_RFC1533_VENDLEN (ETH_MAX_MTU - sizeof(struct bootpip_t) + BOOTP_VENDOR_LEN)

#define BOOTP_DATA_ADDR (&bootp_data)

#endif	/* _BOOTP_H */