91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
#ifndef TFTP_H
|
|
#define TFTP_H
|
|
|
|
#include "in.h"
|
|
#include "buffer.h"
|
|
#include "nic.h"
|
|
|
|
#define TFTP_PORT 69
|
|
#define TFTP_DEFAULTSIZE_PACKET 512
|
|
#define TFTP_MAX_PACKET 1432 /* 512 */
|
|
|
|
#define TFTP_RRQ 1
|
|
#define TFTP_WRQ 2
|
|
#define TFTP_DATA 3
|
|
#define TFTP_ACK 4
|
|
#define TFTP_ERROR 5
|
|
#define TFTP_OACK 6
|
|
|
|
#define TFTP_CODE_EOF 1
|
|
#define TFTP_CODE_MORE 2
|
|
#define TFTP_CODE_ERROR 3
|
|
#define TFTP_CODE_BOOT 4
|
|
#define TFTP_CODE_CFG 5
|
|
|
|
struct tftp_t {
|
|
struct iphdr ip;
|
|
struct udphdr udp;
|
|
uint16_t opcode;
|
|
union {
|
|
uint8_t rrq[TFTP_DEFAULTSIZE_PACKET];
|
|
struct {
|
|
uint16_t block;
|
|
uint8_t download[TFTP_MAX_PACKET];
|
|
} data;
|
|
struct {
|
|
uint16_t block;
|
|
} ack;
|
|
struct {
|
|
uint16_t errcode;
|
|
uint8_t errmsg[TFTP_DEFAULTSIZE_PACKET];
|
|
} err;
|
|
struct {
|
|
uint8_t data[TFTP_DEFAULTSIZE_PACKET+2];
|
|
} oack;
|
|
} u;
|
|
} PACKED;
|
|
|
|
/* define a smaller tftp packet solely for making requests to conserve stack
|
|
512 bytes should be enough */
|
|
struct tftpreq_t {
|
|
struct iphdr ip;
|
|
struct udphdr udp;
|
|
uint16_t opcode;
|
|
union {
|
|
uint8_t rrq[512];
|
|
struct {
|
|
uint16_t block;
|
|
} ack;
|
|
struct {
|
|
uint16_t errcode;
|
|
uint8_t errmsg[512-2];
|
|
} err;
|
|
} u;
|
|
} PACKED;
|
|
|
|
struct tftpreq_info_t {
|
|
struct sockaddr_in *server;
|
|
const char *name;
|
|
unsigned short blksize;
|
|
} PACKED;
|
|
|
|
struct tftpblk_info_t {
|
|
char *data;
|
|
unsigned int block;
|
|
unsigned int len;
|
|
int eof;
|
|
} PACKED;
|
|
|
|
#define TFTP_MIN_PACKET (sizeof(struct iphdr) + sizeof(struct udphdr) + 4)
|
|
|
|
/*
|
|
* Functions in tftp.c. Needed for pxe_export.c
|
|
*
|
|
*/
|
|
extern int tftp_block ( struct tftpreq_info_t *request,
|
|
struct tftpblk_info_t *block );
|
|
extern int tftp ( char *url, struct sockaddr_in *server, char *file,
|
|
struct buffer *buffer );
|
|
|
|
#endif /* TFTP_H */
|