1 | /* SPDX-License-Identifier: BSD-3-Clause */ |
2 | /* tftp defines */ |
3 | |
4 | #ifndef SLIRP_TFTP_H |
5 | #define SLIRP_TFTP_H |
6 | |
7 | #define TFTP_SESSIONS_MAX 20 |
8 | |
9 | #define TFTP_SERVER 69 |
10 | |
11 | #define TFTP_RRQ 1 |
12 | #define TFTP_WRQ 2 |
13 | #define TFTP_DATA 3 |
14 | #define TFTP_ACK 4 |
15 | #define TFTP_ERROR 5 |
16 | #define TFTP_OACK 6 |
17 | |
18 | #define TFTP_FILENAME_MAX 512 |
19 | #define TFTP_BLOCKSIZE_MAX 1428 |
20 | |
21 | struct tftp_t { |
22 | struct udphdr udp; |
23 | uint16_t tp_op; |
24 | union { |
25 | struct { |
26 | uint16_t tp_block_nr; |
27 | uint8_t tp_buf[TFTP_BLOCKSIZE_MAX]; |
28 | } tp_data; |
29 | struct { |
30 | uint16_t tp_error_code; |
31 | uint8_t tp_msg[TFTP_BLOCKSIZE_MAX]; |
32 | } tp_error; |
33 | char tp_buf[TFTP_BLOCKSIZE_MAX + 2]; |
34 | } x; |
35 | } __attribute__((packed)); |
36 | |
37 | struct tftp_session { |
38 | Slirp *slirp; |
39 | char *filename; |
40 | int fd; |
41 | uint16_t block_size; |
42 | |
43 | struct sockaddr_storage client_addr; |
44 | uint16_t client_port; |
45 | uint32_t block_nr; |
46 | |
47 | int timestamp; |
48 | }; |
49 | |
50 | void tftp_input(struct sockaddr_storage *srcsas, struct mbuf *m); |
51 | |
52 | #endif |
53 | |