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iso14443b modifications (#804)

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* LED handling
* improve 'hf plot' support
This commit is contained in:
pwpiwi 2019-03-24 18:04:42 +01:00 • committed by GitHub
commit ca8a3478d9
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 28 additions and 15 deletions
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2
armsrc/iso14443a.c
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@ -2591,12 +2591,12 @@ void RAMFUNC SniffMifare(uint8_t param) {
} // main cycle
FpgaDisableTracing();
FpgaDisableSscDma();
LEDsoff();
DbpString("COMMAND FINISHED.");
FpgaDisableTracing();
MfSniffEnd();
Dbprintf("maxDataLen=%x, Uart.state=%x, Uart.len=%x", maxDataLen, Uart.state, Uart.len);

41
armsrc/iso14443b.c
View file

@ -327,6 +327,7 @@ static int GetIso14443bCommandFromReader(uint8_t *received, uint16_t *len)
//-----------------------------------------------------------------------------
void SimulateIso14443bTag(void)
{
LED_A_ON();
// the only commands we understand is WUPB, AFI=0, Select All, N=1:
static const uint8_t cmd1[] = { 0x05, 0x00, 0x08, 0x39, 0x73 }; // WUPB
// ... and REQB, AFI=0, Normal Request, N=1:
@ -465,6 +466,9 @@ void SimulateIso14443bTag(void)
LogTrace(resp, respLen, 0, 0, NULL, false);
}
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LED_A_OFF();
}
//=============================================================================
@ -861,6 +865,7 @@ static void CodeAndTransmit14443bAsReader(const uint8_t *cmd, int len)
*/
int iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *response)
{
LED_A_ON();
uint8_t message_frame[message_length + 4];
// PCB
message_frame[0] = 0x0A | pcb_blocknum;
@ -875,8 +880,10 @@ int iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *respo
CodeAndTransmit14443bAsReader(message_frame, message_length + 4);
// get response
GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
FpgaDisableTracing();
if(Demod.len < 3)
{
LED_A_OFF();
return 0;
}
// TODO: Check CRC
@ -885,6 +892,7 @@ int iso14443b_apdu(uint8_t const *message, size_t message_length, uint8_t *respo
{
memcpy(response, Demod.output, Demod.len);
}
LED_A_OFF();
return Demod.len;
}
@ -957,6 +965,7 @@ void iso14443b_setup() {
//-----------------------------------------------------------------------------
void ReadSTMemoryIso14443b(uint32_t dwLast)
{
LED_A_ON();
uint8_t i = 0x00;
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
@ -984,9 +993,9 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len == 0) {
DbpString("No response from tag");
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("No response from tag");
LEDsoff();
return;
} else {
Dbprintf("Randomly generated Chip ID (+ 2 byte CRC): %02x %02x %02x",
@ -1001,24 +1010,24 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len != 3) {
Dbprintf("Expected 3 bytes from tag, got %d", Demod.len);
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
Dbprintf("Expected 3 bytes from tag, got %d", Demod.len);
LEDsoff();
return;
}
// Check the CRC of the answer:
ComputeCrc14443(CRC_14443_B, Demod.output, 1 , &cmd1[2], &cmd1[3]);
if(cmd1[2] != Demod.output[1] || cmd1[3] != Demod.output[2]) {
DbpString("CRC Error reading select response.");
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("CRC Error reading select response.");
LEDsoff();
return;
}
// Check response from the tag: should be the same UID as the command we just sent:
if (cmd1[1] != Demod.output[0]) {
Dbprintf("Bad response to SELECT from Tag, aborting: %02x %02x", cmd1[1], Demod.output[0]);
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
Dbprintf("Bad response to SELECT from Tag, aborting: %02x %02x", cmd1[1], Demod.output[0]);
LEDsoff();
return;
}
@ -1029,9 +1038,9 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
CodeAndTransmit14443bAsReader(cmd1, 3); // Only first three bytes for this one
GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len != 10) {
Dbprintf("Expected 10 bytes from tag, got %d", Demod.len);
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
Dbprintf("Expected 10 bytes from tag, got %d", Demod.len);
LEDsoff();
return;
}
// The check the CRC of the answer (use cmd1 as temporary variable):
@ -1060,9 +1069,9 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
if (Demod.len != 6) { // Check if we got an answer from the tag
DbpString("Expected 6 bytes from tag, got less...");
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("Expected 6 bytes from tag, got less...");
LEDsoff();
return;
}
// The check the CRC of the answer (use cmd1 as temporary variable):
@ -1082,8 +1091,8 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
i++;
}
LED_D_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
}
@ -1106,6 +1115,7 @@ void ReadSTMemoryIso14443b(uint32_t dwLast)
*/
void RAMFUNC SnoopIso14443b(void)
{
LED_A_ON();
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
BigBuf_free();
@ -1221,13 +1231,13 @@ void RAMFUNC SnoopIso14443b(void)
}
FpgaDisableSscDma();
LEDsoff();
DbpString("Snoop statistics:");
Dbprintf(" Max behind by: %i", maxBehindBy);
Dbprintf(" Uart State: %x", Uart.state);
Dbprintf(" Uart ByteCnt: %i", Uart.byteCnt);
Dbprintf(" Uart ByteCntMax: %i", Uart.byteCntMax);
Dbprintf(" Trace length: %i", BigBuf_get_traceLen());
LEDsoff();
}
@ -1260,9 +1270,12 @@ void SendRawCommand14443B(uint32_t datalen, uint32_t recv, uint8_t powerfield, u
if(recv) {
GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, true);
FpgaDisableTracing();
uint16_t iLen = MIN(Demod.len, USB_CMD_DATA_SIZE);
cmd_send(CMD_ACK, iLen, 0, 0, Demod.output, iLen);
}
FpgaDisableTracing();
}
if(!powerfield) {