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Update hf_bog.c

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bogiton 2018-10-28 13:34:42 +00:00 • committed by GitHub
commit 43f90181b3
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1 changed files with 9 additions and 10 deletions
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19
armsrc/Standalone/hf_bog.c
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@ -11,7 +11,7 @@
#define DELAY_TAG_AIR2ARM_AS_SNIFFER (3 + 14 + 8) #define DELAY_TAG_AIR2ARM_AS_SNIFFER (3 + 14 + 8)
// Maximum number of auth attempts per standalone session // Maximum number of auth attempts per standalone session
#define MAX_PWDS_PER_SESSION 20 #define MAX_PWDS_PER_SESSION 64
uint8_t FindOffsetInFlash() { uint8_t FindOffsetInFlash() {
@ -19,16 +19,16 @@ uint8_t FindOffsetInFlash() {
uint8_t eom[4] = { 0xFF, 0xFF, 0xFF, 0xFF }; uint8_t eom[4] = { 0xFF, 0xFF, 0xFF, 0xFF };
uint8_t memcnt = 0; uint8_t memcnt = 0;
while (1) while (memcnt < 4096)
{ {
Flash_ReadData(memcnt, mem, 4); Flash_ReadData(memcnt, mem, 4);
if (memcmp(mem, eom, 4) == 0) { if (memcmp(mem, eom, 4) == 0) {
break; return memcnt;
} }
memcnt += 4; memcnt += 4;
} }
return memcnt; return 0; // wrap-around
} }
void EraseMemory() void EraseMemory()
@ -48,11 +48,6 @@ void EraseMemory()
void RAMFUNC SniffAndStore(uint8_t param) { void RAMFUNC SniffAndStore(uint8_t param) {
// Array to store the authpwds
uint8_t *capturedPwds = BigBuf_malloc(4 * MAX_PWDS_PER_SESSION);
SpinDelay(500);
/* This is actually copied from SniffIso14443a */ /* This is actually copied from SniffIso14443a */
iso14443a_setup(FPGA_HF_ISO14443A_SNIFFER); iso14443a_setup(FPGA_HF_ISO14443A_SNIFFER);
@ -63,6 +58,9 @@ void RAMFUNC SniffAndStore(uint8_t param) {
clear_trace(); clear_trace();
set_tracing(true); set_tracing(true);
// Array to store the authpwds
uint8_t *capturedPwds = BigBuf_malloc(4 * MAX_PWDS_PER_SESSION);
// The command (reader -> tag) that we're receiving. // The command (reader -> tag) that we're receiving.
uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE); uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
uint8_t *receivedCmdPar = BigBuf_malloc(MAX_PARITY_SIZE); uint8_t *receivedCmdPar = BigBuf_malloc(MAX_PARITY_SIZE);
@ -265,7 +263,8 @@ void RAMFUNC SniffAndStore(uint8_t param) {
void RunMod() void RunMod()
{ {
Dbprintf("Sniffing started"); Dbprintf("Sniffing started");
SpinDelay(200);
SpinDelay(200);
// param: // param:
// bit 0 - trigger from first card answer // bit 0 - trigger from first card answer