1 files changed, 77 insertions, 0 deletions
diff --git a/src/include/tftp.h b/src/include/tftp.h
new file mode 100644
index 000000000..14763d483
--- /dev/null
+++ b/src/include/tftp.h
@@ -0,0 +1,77 @@
+#ifndef	_TFTP_H
+#define	_TFTP_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 {
+	const char *name;
+	unsigned short port;
+	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)
+
+#endif	/* _TFTP_H */