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#ifndef _GPXE_TFTP_H
#define _GPXE_TFTP_H
/** @file
*
* TFTP protocol
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#define TFTP_PORT 69 /**< Default TFTP server port */
#define TFTP_DEFAULT_BLKSIZE 512 /**< Default TFTP data block size */
#define TFTP_MAX_BLKSIZE 1432
#define TFTP_RRQ 1 /**< Read request opcode */
#define TFTP_WRQ 2 /**< Write request opcode */
#define TFTP_DATA 3 /**< Data block opcode */
#define TFTP_ACK 4 /**< Data block acknowledgement opcode */
#define TFTP_ERROR 5 /**< Error opcode */
#define TFTP_OACK 6 /**< Options acknowledgement opcode */
#define TFTP_ERR_FILE_NOT_FOUND 1 /**< File not found */
#define TFTP_ERR_ACCESS_DENIED 2 /**< Access violation */
#define TFTP_ERR_DISK_FULL 3 /**< Disk full or allocation exceeded */
#define TFTP_ERR_ILLEGAL_OP 4 /**< Illegal TFTP operation */
#define TFTP_ERR_UNKNOWN_TID 5 /**< Unknown transfer ID */
#define TFTP_ERR_FILE_EXISTS 6 /**< File already exists */
#define TFTP_ERR_UNKNOWN_USER 7 /**< No such user */
#define TFTP_ERR_BAD_OPTS 8 /**< Option negotiation failed */
#define MTFTP_PORT 1759 /**< Default MTFTP server port */
/** A TFTP read request (RRQ) packet */
struct tftp_rrq {
uint16_t opcode;
char data[0];
} __attribute__ (( packed ));
/** A TFTP data (DATA) packet */
struct tftp_data {
uint16_t opcode;
uint16_t block;
uint8_t data[0];
} __attribute__ (( packed ));
/** A TFTP acknowledgement (ACK) packet */
struct tftp_ack {
uint16_t opcode;
uint16_t block;
} __attribute__ (( packed ));
/** A TFTP error (ERROR) packet */
struct tftp_error {
uint16_t opcode;
uint16_t errcode;
char errmsg[0];
} __attribute__ (( packed ));
/** A TFTP options acknowledgement (OACK) packet */
struct tftp_oack {
uint16_t opcode;
char data[0];
} __attribute__ (( packed ));
/** The common header of all TFTP packets */
struct tftp_common {
uint16_t opcode;
} __attribute__ (( packed ));
/** A union encapsulating all TFTP packet types */
union tftp_any {
struct tftp_common common;
struct tftp_rrq rrq;
struct tftp_data data;
struct tftp_ack ack;
struct tftp_error error;
struct tftp_oack oack;
};
extern void tftp_set_request_blksize ( unsigned int blksize );
#endif /* _GPXE_TFTP_H */
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