diff --git a/tlv.h b/tlv.h
index 9c90bca..105b198 100644
--- a/tlv.h
+++ b/tlv.h
@@ -1,6 +1,14 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
+// 8 octets min (struct pointer 4 octets), 1024 octets max 
+typedef struct packet {
+	unsigned char magic; // 95 (si autre, ignorer)
+	unsigned char version; // 1 (si autre, ignorer)
+	short length; // 1020 max
+	char *body;
+} packet;
+
 typedef union tlv {
 	pad1 *pad1;
 	padn *padn;