tftp.h@ 5574

Last change on this file since 5574 was 1, checked in by vboxsync, 55 years ago
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1	#ifndef _TFTP_H
2	#define _TFTP_H
3
4	#define TFTP_PORT 69
5	#define TFTP_DEFAULTSIZE_PACKET 512
6	#define TFTP_MAX_PACKET 1432 /* 512 */
7
8	#define TFTP_RRQ 1
9	#define TFTP_WRQ 2
10	#define TFTP_DATA 3
11	#define TFTP_ACK 4
12	#define TFTP_ERROR 5
13	#define TFTP_OACK 6
14
15	#define TFTP_CODE_EOF 1
16	#define TFTP_CODE_MORE 2
17	#define TFTP_CODE_ERROR 3
18	#define TFTP_CODE_BOOT 4
19	#define TFTP_CODE_CFG 5
20
21	struct tftp_t {
22	struct iphdr ip;
23	struct udphdr udp;
24	uint16_t opcode;
25	union {
26	uint8_t rrq[TFTP_DEFAULTSIZE_PACKET];
27	struct {
28	uint16_t block;
29	uint8_t download[TFTP_MAX_PACKET];
30	} data;
31	struct {
32	uint16_t block;
33	} ack;
34	struct {
35	uint16_t errcode;
36	uint8_t errmsg[TFTP_DEFAULTSIZE_PACKET];
37	} err;
38	struct {
39	uint8_t data[TFTP_DEFAULTSIZE_PACKET+2];
40	} oack;
41	} u;
42	} PACKED;
43
44	/* define a smaller tftp packet solely for making requests to conserve stack
45	512 bytes should be enough */
46	struct tftpreq_t {
47	struct iphdr ip;
48	struct udphdr udp;
49	uint16_t opcode;
50	union {
51	uint8_t rrq[512];
52	struct {
53	uint16_t block;
54	} ack;
55	struct {
56	uint16_t errcode;
57	uint8_t errmsg[512-2];
58	} err;
59	} u;
60	} PACKED;
61
62	struct tftpreq_info_t {
63	const char *name;
64	unsigned short port;
65	unsigned short blksize;
66	} PACKED;
67
68	struct tftpblk_info_t {
69	char *data;
70	unsigned int block;
71	unsigned int len;
72	int eof;
73	} PACKED;
74
75	#define TFTP_MIN_PACKET (sizeof(struct iphdr) + sizeof(struct udphdr) + 4)
76
77	#endif /* _TFTP_H */

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