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- #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 */
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