tftp.h

Boot code for ADM5120 with serial console for Edimax router.

/*****************************************************************************
;
;   (C) Unpublished Work of ADMtek Incorporated.  All Rights Reserved.
;
;       THIS WORK IS AN UNPUBLISHED WORK AND CONTAINS CONFIDENTIAL,
;       PROPRIETARY AND TRADESECRET INFORMATION OF ADMTEK INCORPORATED.
;       ACCESS TO THIS WORK IS RESTRICTED TO (I) ADMTEK EMPLOYEES WHO HAVE A
;       NEED TO KNOW TO PERFORM TASKS WITHIN THE SCOPE OF THEIR ASSIGNMENTS
;       AND (II) ENTITIES OTHER THAN ADMTEK WHO HAVE ENTERED INTO APPROPRIATE
;       LICENSE AGREEMENTS.  NO PART OF THIS WORK MAY BE USED, PRACTICED,
;       PERFORMED, COPIED, DISTRIBUTED, REVISED, MODIFIED, TRANSLATED,
;       ABBRIDGED, CONDENSED, EXPANDED, COLLECTED, COMPILED, LINKED, RECAST,
;       TRANSFORMED OR ADAPTED WITHOUT THE PRIOR WRITTEN CONSENT OF ADMTEK.
;       ANY USE OR EXPLOITATION OF THIS WORK WITHOUT AUTHORIZATION COULD
;       SUBJECT THE PERPERTRATOR TO CRIMINAL AND CIVIL LIABILITY.
;
;------------------------------------------------------------------------------
;
;    Project : Common Plateform
;    Creator : 
;    File    : tftp.h
;    Abstract: defines the specific items that loader nedded.
;
;Modification History:
;       By              Date     Ver.   Modification Description
;       --------------- -------- -----  --------------------------------------
;
;*****************************************************************************/
#ifndef __TFTP_H
#define	__TFTP_H

/*
 * Trivial File Transfer Protocol (IEN-133)
 */
#define	TFTP_DATA_SIZE		512		/* data segment size */

/*
 * Packet types.
 */
#define	RRQ	01				/* read request */
#define	WRQ	02				/* write request */
#define	DATA	03				/* data packet */
#define	ACK	04				/* acknowledgement */
#define	ERROR	05				/* error code */

/*
 * TFTP state
 */
#define	TFTP_END	0
#define	TFTP_START	1
#define	TFTP_CONTINUE	2
#define	TFTP_NO_DATA	-1
/*
 * TFTP header
 */
struct	tftphdr {
	short	th_opcode;			/* packet type */
	union {
		unsigned short	tu_block;	/* block # */
		short	tu_code;		/* error code */
		char	tu_stuff[1];		/* request packet stuff */
	} __attribute__ ((__packed__)) th_u;
	char	th_data[0];			/* data or error string */
} __attribute__ ((__packed__));

#define	th_block	th_u.tu_block
#define	th_code		th_u.tu_code
#define	th_stuff	th_u.tu_stuff
#define	th_msg		th_data

/*
 * Error codes.
 */
#define	EUNDEF		0		/* not defined */
#define	ENOTFOUND	1		/* file not found */
#define	EACCESS		2		/* access violation */
#define	ENOSPACE	3		/* disk full or allocation exceeded */
#define	EBADOP		4		/* illegal TFTP operation */
#define	EBADID		5		/* unknown transfer ID */
#define	EEXISTS		6		/* file already exists */
#define	ENOUSER		7		/* no such user */

/*
 * Function prototypes
 */

#ifdef MODIFIEDSRC
void tftp_init();
int tftp_client_menu(char *);
unsigned long tftpc(char *, int);
#else
void tftp_client_download(void);
#endif	/* MODIFIEDSRC */

#endif /* __TFTP_H */