X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/810f53792ea438c1b70eaa1f934db1e5c96220cb..a38f5a0704240efdf46ee423f0c9ed10a48b1078:/armsrc/hitag2.c

diff --git a/armsrc/hitag2.c b/armsrc/hitag2.c
index 1147cb8d..4596d3f1 100644
--- a/armsrc/hitag2.c
+++ b/armsrc/hitag2.c
@@ -414,7 +414,7 @@ static void hitag_reader_send_bit(int bit) {
 	// Binary puls length modulation (BPLM) is used to encode the data stream
 	// This means that a transmission of a one takes longer than that of a zero
 	
-	// Enable modulation, which means, drop the the field
+	// Enable modulation, which means, drop the field
 	HIGH(GPIO_SSC_DOUT);
 	
 	// Wait for 4-10 times the carrier period
@@ -444,7 +444,7 @@ static void hitag_reader_send_frame(const byte_t* frame, size_t frame_len)
 	}
 	// Send EOF 
 	AT91C_BASE_TC0->TC_CCR = AT91C_TC_SWTRG;
-	// Enable modulation, which means, drop the the field
+	// Enable modulation, which means, drop the field
 	HIGH(GPIO_SSC_DOUT);
 	// Wait for 4-10 times the carrier period
 	while(AT91C_BASE_TC0->TC_CV < T0*6);
@@ -712,7 +712,10 @@ void SnoopHitag(uint32_t type) {
 	size_t rxlen=0;
 	
 	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-
+	
+	// free eventually allocated BigBuf memory
+	BigBuf_free(); BigBuf_Clear_ext(false);
+	
 	// Clean up trace and prepare it for storing frames
 	clear_trace();
 	set_tracing(TRUE);
@@ -720,7 +723,6 @@ void SnoopHitag(uint32_t type) {
 	auth_table_len = 0;
 	auth_table_pos = 0;
 
-	BigBuf_free();
     auth_table = (byte_t *)BigBuf_malloc(AUTH_TABLE_LENGTH);
 	memset(auth_table, 0x00, AUTH_TABLE_LENGTH);
 	
@@ -927,6 +929,9 @@ void SimulateHitagTag(bool tag_mem_supplied, byte_t* data) {
 	
 	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
 
+	// free eventually allocated BigBuf memory
+	BigBuf_free(); BigBuf_Clear_ext(false);
+
 	// Clean up trace and prepare it for storing frames
 	clear_trace();
 	set_tracing(TRUE);
@@ -934,7 +939,7 @@ void SimulateHitagTag(bool tag_mem_supplied, byte_t* data) {
 	auth_table_len = 0;
 	auth_table_pos = 0;
     byte_t* auth_table;
-	BigBuf_free();
+
     auth_table = (byte_t *)BigBuf_malloc(AUTH_TABLE_LENGTH);
 	memset(auth_table, 0x00, AUTH_TABLE_LENGTH);
 
@@ -1149,7 +1154,7 @@ void ReaderHitag(hitag_function htf, hitag_data* htd) {
       
 		case RHT2F_CRYPTO: {
 			DbpString("Authenticating using key:");
-			memcpy(key,htd->crypto.key,4);	  //HACK; 4 or 6??  I read both in the code.
+			memcpy(key,htd->crypto.key,6);	  //HACK; 4 or 6??  I read both in the code.
 			Dbhexdump(6,key,false);
 			blocknr = 0;
 			bQuiet = false;