1 files changed, 81 insertions, 0 deletions
diff --git a/mactelnet.c b/mactelnet.c
new file mode 100644
index 0000000..88ddcdf
--- /dev/null
+++ b/mactelnet.c
@@ -0,0 +1,81 @@
+#include <string.h>
+#include <stdio.h>
+#include "mactelnet.h"
+#include "config.h"
+
+int initPacket(unsigned char *data, unsigned char ptype, unsigned char *src, unsigned char *dst, unsigned short sessionkey, unsigned short counter) {
+
+	// PACKET VERSION
+	data[0] = 1;
+
+	// PACKET TYPE
+	data[1] = ptype;
+
+	// src ethernet address
+	etherAddrton(data + 2, src);
+
+	// dst ethernet address
+	etherAddrton(data + 8, dst);
+
+	data[14] = sessionkey >> 8;
+	data[15] = sessionkey & 0xff;
+
+	data[16] = 0x00;
+	data[17] = 0x15;
+
+	data[18] = (counter >> 24) & 0xff;
+	data[19] = (counter >> 16) & 0xff;
+	data[20] = (counter >> 8) & 0xff;
+	data[21] = counter & 0xff;
+
+	return 22;
+}
+
+int addControlPacket(unsigned char *data, unsigned char cptype, unsigned char *cpdata, int data_len) {
+	data[0] = 0x56;
+	data[1] = 0x34;
+	data[2] = 0x12;
+	data[3] = 0xff;
+
+	// Control packet type
+	data[4] = cptype;
+
+	// Data length
+	data[5] = (data_len >> 24) & 0xff;
+	data[6] = (data_len >> 16) & 0xff;
+	data[7] = (data_len >> 8) & 0xff;
+	data[8] = data_len & 0xff;
+
+	if (data_len) {
+		memcpy(data+9, cpdata, data_len);
+	}
+
+	return 9+data_len;
+}
+
+void parsePacket(unsigned char *data, struct mt_mactelnet_hdr *pkthdr) {
+	pkthdr->ver = data[0];
+	pkthdr->ptype = data[1];
+	memcpy(pkthdr->srcaddr, data+2,6);
+	memcpy(pkthdr->dstaddr, data+8,6);
+	pkthdr->seskey = data[16] << 8 | data[17];
+	pkthdr->counter = data[18] << 24 | data[19] << 16 | data[20] << 8 | data[21];
+	pkthdr->data = data + 22;
+}
+
+
+void parseControlPacket(unsigned char *data, int data_len) {
+	unsigned char magic[] = { 0x56, 0x34, 0x12, 0xff };
+	if (memcmp(data,&magic,4) == 0) {
+		if (DEBUG)
+			printf("\tControl packet:\n\t\tType: %d\n\t\tLength: %d\n", data[4], data[5]<<24|data[6]<<16|data[7]<<8|data[8]);
+		if (data_len - 9 - (data[4], data[5]<<24|data[6]<<16|data[7]<<8|data[8]) > 0) {
+			parseControlPacket(data + 9 + (data[4], data[5]<<24|data[6]<<16|data[7]<<8|data[8]), data_len - 9 - (data[4], data[5]<<24|data[6]<<16|data[7]<<8|data[8]));
+		}
+
+		if (data[4] == 1) {
+			printf("Connected. Enter username & password.\n\n"); // TODOD: Teh good shiat
+		}
+	}
+}
+