pxe.h

this is aes algorithm

/*
 * Copyright (c) 2000 Alfred Perlstein <[e-mail]>
 * All rights reserved.
 * Copyright (c) 2000 Paul Saab <[e-mail]>
 * All rights reserved.
 * Copyright (c) 2000 John Baldwin <[e-mail]>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/boot/i386/libi386/pxe.h,v 1.6 2002/09/23 18:54:26 alfred Exp $
 */

/*
 * The typedefs and structures declared in this file
 * clearly violate style(9), the reason for this is to conform to the
 * typedefs/structure-names used in the Intel literature to avoid confusion.
 *
 * It's for your own good. :)
 */

/* It seems that intel didn't think about ABI,
 * either that or 16bit ABI != 32bit ABI (which seems reasonable)
 * I have to thank Intel for the hair loss I incurred trying to figure
 * out why PXE was mis-reading structures I was passing it (at least
 * from my point of view)
 *
 * Solution: use gcc's '__packed' to correctly align
 * structures passed into PXE
 * Question: does this really work for PXE's expected ABI?
 */
/*#define	PACKED		__packed*/
#define PACKED		__attribute__((__packed__))

#define	S_SIZE(s)	s, sizeof(s) - 1

#define	IP_STR		"%d.%d.%d.%d"
#define	IP_ARGS(ip)					\
	(int)(ip >> 24) & 0xff, (int)(ip >> 16) & 0xff, \
	(int)(ip >> 8) & 0xff, (int)ip & 0xff

#define	MAC_STR		"%02x:%02x:%02x:%02x:%02x:%02x"
#define	MAC_ARGS(mac)					\
	mac[0], mac[1], mac[2], mac[3], mac[4], mac[5] 

#define	PXENFSROOTPATH	"/pxeroot"

typedef struct {
	uint16_t		offset;
	uint16_t		segment;
} SEGOFF16_t;

typedef struct {
	uint16_t		Seg_Addr;
	uint32_t		Phy_Addr;
	uint16_t		Seg_Size;
} SEGDESC_t;

typedef	uint16_t		SEGSEL_t;
typedef	uint16_t		PXENV_STATUS_t;
typedef	uint32_t		IP4_t;
typedef	uint32_t		ADDR32_t;
typedef	uint16_t		UDP_PORT_t;

#define	MAC_ADDR_LEN		16
typedef	uint8_t			MAC_ADDR[MAC_ADDR_LEN];

/* PXENV+ */
typedef struct {
	uint8_t		Signature[6];	/* 'PXENV+' */
	uint16_t	Version;	/* MSB = major, LSB = minor */
	uint8_t		Length;		/* structure length */
	uint8_t		Checksum;	/* checksum pad */
	SEGOFF16_t	RMEntry;	/* SEG:OFF to PXE entry point */
	/* don't use PMOffset and PMSelector (from the 2.1 PXE manual) */
	uint32_t	PMOffset;	/* Protected mode entry */
	SEGSEL_t	PMSelector;	/* Protected mode selector */
	SEGSEL_t	StackSeg;	/* Stack segment address */
	uint16_t	StackSize;	/* Stack segment size (bytes) */
	SEGSEL_t	BC_CodeSeg;	/* BC Code segment address */
	uint16_t	BC_CodeSize;	/* BC Code segment size (bytes) */
	SEGSEL_t	BC_DataSeg;	/* BC Data segment address */
	uint16_t	BC_DataSize;	/* BC Data segment size (bytes) */
	SEGSEL_t	UNDIDataSeg;	/* UNDI Data segment address */
	uint16_t	UNDIDataSize;	/* UNDI Data segment size (bytes) */
	SEGSEL_t	UNDICodeSeg;	/* UNDI Code segment address */
	uint16_t	UNDICodeSize;	/* UNDI Code segment size (bytes) */
	SEGOFF16_t	PXEPtr;		/* SEG:OFF to !PXE struct, 
					   only present when Version > 2.1 */
} PACKED pxenv_t;

/* !PXE */
typedef struct {
	uint8_t		Signature[4];
	uint8_t		StructLength;
	uint8_t		StructCksum;
	uint8_t		StructRev;
	uint8_t		reserved_1;
	SEGOFF16_t	UNDIROMID;
	SEGOFF16_t	BaseROMID;
	SEGOFF16_t	EntryPointSP;
	SEGOFF16_t	EntryPointESP;
	SEGOFF16_t	StatusCallout;
	uint8_t		reserved_2;
	uint8_t		SegDescCn;
	SEGSEL_t	FirstSelector;
	SEGDESC_t	Stack;
	SEGDESC_t	UNDIData;
	SEGDESC_t	UNDICode;
	SEGDESC_t	UNDICodeWrite;
	SEGDESC_t	BC_Data;
	SEGDESC_t	BC_Code;
	SEGDESC_t	BC_CodeWrite;
} PACKED pxe_t;

#define	PXENV_START_UNDI		0x0000
typedef struct {
	PXENV_STATUS_t	Status;
	uint16_t	ax;
	uint16_t	bx;
	uint16_t	dx;
	uint16_t	di;
	uint16_t	es;
} PACKED t_PXENV_START_UNDI;

#define	PXENV_UNDI_STARTUP		0x0001
typedef struct {
	PXENV_STATUS_t	Status;
} PACKED t_PXENV_UNDI_STARTUP;

#define	PXENV_UNDI_CLEANUP		0x0002
typedef struct {
	PXENV_STATUS_t	Status;
} PACKED t_PXENV_UNDI_CLEANUP;

#define	PXENV_UNDI_INITIALIZE		0x0003
typedef struct {
	PXENV_STATUS_t	Status;
	ADDR32_t	ProtocolIni;	/* Phys addr of a copy of the driver module */
	uint8_t		reserved[8];
} PACKED t_PXENV_UNDI_INITALIZE;


#define	MAXNUM_MCADDR		8
typedef struct {
	PXENV_STATUS_t	Status;
	uint16_t	MCastAddrCount;
	MAC_ADDR	McastAddr[MAXNUM_MCADDR];
} PACKED t_PXENV_UNDI_MCAST_ADDRESS;

#define	PXENV_UNDI_RESET_ADAPTER	0x0004		
typedef struct {
	PXENV_STATUS_t	Status;
	t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
} PACKED t_PXENV_UNDI_RESET;

#define	PXENV_UNDI_SHUTDOWN		0x0005
typedef struct {
	PXENV_STATUS_t	Status;
} PACKED t_PXENV_UNDI_SHUTDOWN;

#define	PXENV_UNDI_OPEN			0x0006
typedef struct {
	PXENV_STATUS_t	Status;
	uint16_t	OpenFlag;
	uint16_t	PktFilter;
#	define FLTR_DIRECTED	0x0001
#	define FLTR_BRDCST	0x0002
#	define FLTR_PRMSCS	0x0003
#	define FLTR_SRC_RTG	0x0004

	t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
} PACKED t_PXENV_UNDI_OPEN;

#define	PXENV_UNDI_CLOSE		0x0007
typedef struct {
	PXENV_STATUS_t	Status;
} PACKED t_PXENV_UNDI_CLOSE;

#define	PXENV_UNDI_TRANSMIT		0x0008
typedef struct {
	PXENV_STATUS_t	Status;
	uint8_t		Protocol;
#	define P_UNKNOWN	0
#	define P_IP		1
#	define P_ARP		2
#	define P_RARP		3

	uint8_t		XmitFlag;
#	define XMT_DESTADDR	0x0000
#	define XMT_BROADCAST	0x0001

	SEGOFF16_t	DestAddr;
	SEGOFF16_t	TBD;
	uint32_t	Reserved[2];
} PACKED t_PXENV_UNDI_TRANSMIT;

#define	MAX_DATA_BLKS		8
typedef struct {
	uint16_t	ImmedLength;
	SEGOFF16_t	Xmit;
	uint16_t	DataBlkCount;
	struct	DataBlk {
		uint8_t		TDPtrType;
		uint8_t		TDRsvdByte;
		uint16_t	TDDataLen;
		SEGOFF16_t	TDDataPtr;
	} DataBlock[MAX_DATA_BLKS];
} PACKED t_PXENV_UNDI_TBD;

#define	PXENV_UNDI_SET_MCAST_ADDRESS	0x0009
typedef struct {
	PXENV_STATUS_t	Status;
	t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
} PACKED t_PXENV_UNDI_SET_MCAST_ADDR;

#define	PXENV_UNDI_SET_STATION_ADDRESS	0x000A
typedef struct {
	PXENV_STATUS_t	Status;
	MAC_ADDR	StationAddress;		/* Temp MAC addres to use */
} PACKED t_PXENV_UNDI_SET_STATION_ADDR;

#define	PXENV_UNDI_SET_PACKET_FILTER	0x000B
typedef struct {
	PXENV_STATUS_t	Status;
	uint8_t		filter;			/* see UNDI_OPEN (0x0006) */
} PACKED t_PXENV_UNDI_SET_PACKET_FILTER;

#define	PXENV_UNDI_GET_INFORMATION	0x000C
typedef struct {
	PXENV_STATUS_t	Status;
	uint16_t	BaseIo;			/* Adapter base I/O address */
	uint16_t	IntNumber;		/* Adapter IRQ number */
	uint16_t	MaxTranUnit;		/* Adapter maximum transmit unit */
	uint16_t	HwType;			/* Type of protocol at the hardware addr */
#	define ETHER_TYPE	1
#	define EXP_ETHER_TYPE	2
#	define IEEE_TYPE	6
#	define ARCNET_TYPE	7

	uint16_t	HwAddrLen;		/* Length of hardware address */
	MAC_ADDR	CurrentNodeAddress;	/* Current hardware address */
	MAC_ADDR	PermNodeAddress;	/* Permanent hardware address */