Added a protocol of TFTP.

Internet/TFTP/tftp.h

@@ -0,0 +1,93 @@
+/**
+ * @file tftp.h
+ * @brief TFTP Header File.
+ * @version 0.1.0
+ * @author Sang-sik Kim
+ */
+#ifndef __TFTP_H__
+#define __TFTP_H__
+
+#include <stdint.h>
+
+#define F_APP_TFTP
+#define __TFTP_DEBUG__
+
+#define F_STORAGE // If your target support a storage, you have to activate this feature and implement.
+
+#define SOCK_TFTP		1
+
+#define INFO_DBG		0x01
+#define ERROR_DBG		0x02
+#define DEBUG_DBG		0x04
+#define IPC_DBG			0x08
+
+#define DBG_PRINT(level, format, args...)		{ \
+											if(dbg_level & level) \
+												printf(format, ##args); \
+										}
+
+#define NORMAL_MODE		0
+#define TFTP_MODE		1
+
+extern int dbg_level;
+
+/* tftp message */
+#define TFTP_RRQ		1
+#define TFTP_WRQ		2
+#define TFTP_DATA		3
+#define TFTP_ACK		4
+#define TFTP_ERROR		5
+#define TFTP_OACK		6
+
+/* tftp state */
+#define STATE_NONE		0
+#define STATE_RRQ		1
+#define STATE_WRQ		2
+#define STATE_DATA		3
+#define STATE_ACK		4
+#define STATE_OACK		5
+
+/* tftp transfer mode */
+#define TRANS_ASCII		"netascii"
+#define TRANS_BINARY	"octet"
+
+/* tftp progress state */
+#define TFTP_PROGRESS	0
+#define TFTP_FAIL		1
+#define TFTP_SUCCESS	2
+
+/* define */
+#define TFTP_SERVER_PORT		69
+#define TFTP_TEMP_PORT			51000
+#define TFTP_BLK_SIZE			512
+#define MAX_MTU_SIZE			1514
+#define FILE_NAME_SIZE			20
+
+//#define __TFTP_DEBUG__
+
+/* typedef */ 
+typedef struct tftp_data {
+	uint16_t opcode;
+	uint16_t block_num;
+	uint8_t data[0];
+} TFTP_DATA_T;
+
+typedef struct tftp_error {
+	uint16_t opcode;
+	uint16_t error_code;
+	uint8_t error_msg[0];
+} TFTP_ERROR_T;
+
+typedef struct tftp_option {
+	uint8_t *code;
+	uint8_t *value;
+} TFTP_OPTION;
+
+/* Functions */
+void TFTP_init(uint8_t socket, uint8_t *buf);
+void TFTP_exit(void);
+int TFTP_run(void);
+void TFTP_read_request(uint32_t server_ip, uint8_t *filename);
+void tftp_timeout_handler(void);
+
+#endif	/*__TFTP_H__ */