fix 'lf pcf7931 bruteforce' (bug reported in http://www.proxmark.org/forum/viewtopic...

[proxmark3-svn] / common / crc.h

diff --git a/common/crc.h b/common/crc.h
index adbfb237c8cd3671dc26db260833af94c6188640..e2ccd34bbd77db0100672782ce2ae6f97d1514cc 100644 (file)
--- a/common/crc.h
+++ b/common/crc.h
@@ -11,6 +11,7 @@
 
 #include <stdint.h>
 #include <stddef.h>
+#include <stdbool.h>
 
 typedef struct crc {
        uint32_t state;
@@ -26,7 +27,7 @@ typedef struct crc {
  * final_xor is XORed onto the state before returning it from crc_result(). */
 extern void crc_init(crc_t *crc, int order, uint32_t polynom, uint32_t initial_value, uint32_t final_xor);
 
-/* Update the crc state. data is the data of length data_width bits (only the the
+/* Update the crc state. data is the data of length data_width bits (only the
  * data_width lower-most bits are used).
  */
 extern void crc_update(crc_t *crc, uint32_t data, int data_width);
@@ -39,6 +40,10 @@ extern uint32_t crc_finish(crc_t *crc);
 
 // Calculate CRC-8/Maxim checksum
 uint32_t CRC8Maxim(uint8_t *buff, size_t size  );
+
+// Calculate CRC-8 Mifare MAD checksum
+uint32_t CRC8Mad(uint8_t *buff, size_t size);
+
 /* Static initialization of a crc structure */
 #define CRC_INITIALIZER(_order, _polynom, _initial_value, _final_xor) { \
        .state = ((_initial_value) & ((1L<<(_order))-1)), \