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/* SPDX-License-Identifier: BSD-3-Clause */
/* tftp defines */
#ifndef SLIRP_TFTP_H
#define SLIRP_TFTP_H
#include "util.h"
#define TFTP_SESSIONS_MAX 20
#define TFTP_SERVER 69
#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_FILENAME_MAX 512
#define TFTP_BLOCKSIZE_MAX 1428
SLIRP_PACKED_BEGIN
struct tftphdr {
struct udphdr udp;
uint16_t tp_op;
} SLIRP_PACKED_END;
SLIRP_PACKED_BEGIN
struct tftp_t {
struct tftphdr hdr;
union {
struct {
uint16_t tp_block_nr;
uint8_t tp_buf[TFTP_BLOCKSIZE_MAX];
} tp_data;
struct {
uint16_t tp_error_code;
uint8_t tp_msg[TFTP_BLOCKSIZE_MAX];
} tp_error;
char tp_buf[TFTP_BLOCKSIZE_MAX + 2];
} x;
} SLIRP_PACKED_END;
struct tftp_session {
Slirp *slirp;
char *filename;
int fd;
uint16_t block_size;
struct sockaddr_storage client_addr;
uint16_t client_port;
uint32_t block_nr;
int timestamp;
};
void tftp_input(struct sockaddr_storage *srcsas, struct mbuf *m);
#endif
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