52 lines
939 B
C
52 lines
939 B
C
/* tftp defines */
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#ifndef SLIRP_TFTP_H
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#define SLIRP_TFTP_H
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#define TFTP_SESSIONS_MAX 20
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#define TFTP_SERVER 69
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#define TFTP_RRQ 1
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#define TFTP_WRQ 2
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#define TFTP_DATA 3
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#define TFTP_ACK 4
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#define TFTP_ERROR 5
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#define TFTP_OACK 6
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#define TFTP_FILENAME_MAX 512
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#define TFTP_BLOCKSIZE_MAX 1428
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struct tftp_t {
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struct udphdr udp;
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uint16_t tp_op;
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union {
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struct {
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uint16_t tp_block_nr;
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uint8_t tp_buf[TFTP_BLOCKSIZE_MAX];
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} tp_data;
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struct {
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uint16_t tp_error_code;
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uint8_t tp_msg[TFTP_BLOCKSIZE_MAX];
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} tp_error;
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char tp_buf[TFTP_BLOCKSIZE_MAX + 2];
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} x;
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} __attribute__((packed));
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struct tftp_session {
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Slirp *slirp;
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char *filename;
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int fd;
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uint16_t block_size;
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struct sockaddr_storage client_addr;
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uint16_t client_port;
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uint32_t block_nr;
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int timestamp;
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};
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void tftp_input(struct sockaddr_storage *srcsas, struct mbuf *m);
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#endif
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