- Added Mifare Mini, Mifare 2K and 4K support to `hf mf sim` (piwi)
- Added Legic detection to `hf search` (dnet)
- Added Home (Pos1) and End key bindings to the plot GUI (based on @mcd1992)
+- Added downlink reference mode option r <mode> [ 0 - (or missing) default/fixed bit, 1 - long leading, 2 - leading 0 and 3 - 1 of 4 ] to `lf t55xx detect`, `lf t55xx read`, `lf t55xx write`, and `lf t55xx bruteforce`
+- Added special option `r 4` to bruteforce, to try all downlink modes (0,1,2 and 3) for each password
+
## [v3.1.0][2018-10-10]
* Q5 tags seems to have issues when these values changes.
*/
+ /*
+ // Original Timings for reference
+//note startgap must be sent after tag has been powered up for more than 3ms (per T5557 ds)
+
+#define START_GAP 31*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (or 15fc)
+#define WRITE_GAP 20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc)
+#define WRITE_0 18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc)
+#define WRITE_1 50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) 432 for T55x7; 448 for E5550
+#define READ_GAP 15*8
+
+*/
/* Q5 timing datasheet:
* Type | MIN | Typical | Max |
* Start_Gap | 10*8 | ? | 50*8 |
* Write_1 Fast Mode | 24*8 | 28*8 | 32*8 |
*/
-//note startgap must be sent after tag has been powered up for more than 3ms (per T5557 ds)
-#define START_GAP 31*8 //31*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (or 15fc) - T5557: 10*8 to 50*8
-#define WRITE_GAP 20*8 //20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc) - T5557: 8*8 to 30*8 typ 50-150us
-#define WRITE_0 18*8 //18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc) - T5557: 16*8 to 31*8 typ 24*8
-#define WRITE_1 50*8 //50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) - T5557: 48*8 to 63*8 typ 54*8 432 for T55x7; 448 for E5550
-#define READ_GAP 15*8
+// Structure to hold Timing values. In future will be simplier to add user changable timings.
+typedef struct {
+ uint16_t START_GAP;
+ uint16_t WRITE_GAP;
+ uint16_t WRITE_0;
+ uint16_t WRITE_1;
+ uint16_t WRITE_2;
+ uint16_t WRITE_3;
+ uint16_t READ_GAP;
+} T55xx_Timing;
+
+// Set Initial/Default Values. Note: *8 can occure when used. This should keep things simplier here.
+T55xx_Timing T55xx_Timing_FixedBit = { 31 * 8 , 20 * 8 , 18 * 8 , 50 * 8 , 0 , 0 , 15 * 8 };
+T55xx_Timing T55xx_Timing_LLR = { 31 * 8 , 20 * 8 , 18 * 8 , 50 * 8 , 0 , 0 , 15 * 8 };
+T55xx_Timing T55xx_Timing_Leading0 = { 31 * 8 , 20 * 8 , 18 * 8 , 40 * 8 , 0 , 0 , 15 * 8 };
+T55xx_Timing T55xx_Timing_1of4 = { 31 * 8 , 20 * 8 , 18 * 8 , 34 * 8 , 50 * 8 , 66 * 8 , 15 * 8 };
+
+// Some defines for readability
+#define T55xx_DLMode_Fixed 0 // Default Mode
+#define T55xx_DLMode_LLR 1 // Long Leading Reference
+#define T55xx_DLMode_Leading0 2 // Leading Zero
+#define T55xx_DLMode_1of4 3 // 1 of 4
+#define T55xx_LongLeadingReference 4 // Value to tell Write Bit to send long reference
+// Macro for code readability
+#define BitStream_Byte(X) ((X) >> 3)
+#define BitStream_Bit(X) ((X) & 7)
+
void TurnReadLFOn(int delay) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
}
// Write one bit to card
-void T55xxWriteBit(int bit) {
- if (!bit)
- TurnReadLFOn(WRITE_0);
- else
- TurnReadLFOn(WRITE_1);
+void T55xxWriteBit(int bit, T55xx_Timing *Timings) {
+
+ // If bit = 4 Send Long Leading Reference which is 138 + WRITE_0
+ // Dbprintf ("Bits : %d",bit);
+ switch (bit){
+ case 0 : TurnReadLFOn(Timings->WRITE_0); break; // Send bit 0/00
+ case 1 : TurnReadLFOn(Timings->WRITE_1); break; // Send bit 1/01
+ case 2 : TurnReadLFOn(Timings->WRITE_2); break; // Send bits 10
+ case 3 : TurnReadLFOn(Timings->WRITE_3); break; // Send bits 11
+ case 4 : TurnReadLFOn(Timings->WRITE_0 + (136 * 8)); break; // Send Long Leading Reference
+ }
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- WaitUS(WRITE_GAP);
+ WaitUS(Timings->WRITE_GAP);
}
-// Send T5577 reset command then read stream (see if we can identify the start of the stream)
-void T55xxResetRead(void) {
- LED_A_ON();
- //clear buffer now so it does not interfere with timing later
- BigBuf_Clear_keep_EM();
+// Function to abstract an Arbitrary length byte array to store bit pattern.
+// bit_array - Array to hold data/bit pattern
+// start_offset - bit location to start storing new bits.
+// data - upto 32 bits of data to store
+// num_bits - how many bits (low x bits of data) Max 32 bits at a time
+// max_len - how many bytes can the bit_array hold (ensure no buffer overflow)
+// returns "Next" bit offset / bits stored (for next store)
+//int T55xx_SetBits (uint8_t *bit_array, int start_offset, uint32_t data , int num_bits, int max_len)
+int T55xx_SetBits (uint8_t *BitStream, uint8_t start_offset, uint32_t data , uint8_t num_bits, uint8_t max_len)
+{
+ int8_t offset;
+ int8_t NextOffset = start_offset;
+
+ // Check if data will fit.
+ if ((start_offset + num_bits) <= (max_len*8)) {
+ // Loop through the data and store
+ for (offset = (num_bits-1); offset >= 0; offset--) {
+
+ if ((data >> offset) & 1) BitStream[BitStream_Byte(NextOffset)] |= (1 << BitStream_Bit(NextOffset)); // Set the bit to 1
+ else BitStream[BitStream_Byte(NextOffset)] &= (0xff ^ (1 << BitStream_Bit(NextOffset))); // Set the bit to 0
+
+ NextOffset++;
+ }
+ }
+ else {
+ // Note: This should never happen unless some code changes cause it.
+ // So short message for coders when testing.
+ Dbprintf ("T55 too many bits");
+ }
+ return NextOffset;
+}
+
+// Send one downlink command to the card
+void T55xx_SendCMD (uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) {
+
+ /*
+ arg bits
+ xxxxxxx1 0x01 PwdMode
+ xxxxxx1x 0x02 Page
+ xxxxx1xx 0x04 testMode
+ xxx11xxx 0x18 downlink mode
+ xx1xxxxx 0x20 !reg_readmode
+ x1xxxxxx 0x40 called for a read, so no data packet
+ 1xxxxxxx 0x80 reset
+
+ */
+ bool PwdMode = ((arg & 0x01) == 0x01);
+ bool Page = (arg & 0x02);
+ bool testMode = ((arg & 0x04) == 0x04);
+ uint8_t downlink_mode = (arg >> 3) & 0x03;
+ bool reg_readmode = ((arg & 0x20) == 0x20);
+ bool read_cmd = ((arg & 0x40) == 0x40);
+ bool reset = (arg & 0x80);
+
+ uint8_t i = 0;
+ uint8_t BitStream[10]; // Max Downlink Command size ~74 bits, so 10 bytes (80 bits)
+ uint8_t BitStreamLen;
+ T55xx_Timing *Timing;
+ uint8_t SendBits;
+
+ // Assigning Downlink Timeing for write
+ switch (downlink_mode)
+ {
+ case T55xx_DLMode_Fixed : Timing = &T55xx_Timing_FixedBit; break;
+ case T55xx_DLMode_LLR : Timing = &T55xx_Timing_LLR; break;
+ case T55xx_DLMode_Leading0 : Timing = &T55xx_Timing_Leading0; break;
+ case T55xx_DLMode_1of4 : Timing = &T55xx_Timing_1of4; break;
+ default:
+ Timing = &T55xx_Timing_FixedBit;
+ }
+ // Build Bit Stream to send.
+ memset (BitStream,0x00,sizeof(BitStream));
+
+ BitStreamLen = 0; // Ensure 0 bit index to start.
+
+ // Add Leading 0 and 1 of 4 reference bit
+ if ((downlink_mode == T55xx_DLMode_Leading0) || (downlink_mode == T55xx_DLMode_1of4))
+ BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 1,sizeof(BitStream));
+
+ // Add extra reference 0 for 1 of 4
+ if (downlink_mode == T55xx_DLMode_1of4)
+ BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 1,sizeof(BitStream));
+
+ // Add Opcode
+ if (reset) {
+ // Reset : r*) 00
+ BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 2,sizeof(BitStream));
+ }
+ else
+ {
+ if (testMode) Dbprintf("TestMODE");
+ BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen,testMode ? 0 : 1 , 1,sizeof(BitStream));
+ BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen,testMode ? 1 : Page , 1,sizeof(BitStream));
+
+ if (PwdMode) {
+ // Leading 0 and 1 of 4 00 fixed bits if passsword used
+ if ((downlink_mode == T55xx_DLMode_Leading0) || (downlink_mode == T55xx_DLMode_1of4)) {
+ BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 2,sizeof(BitStream));
+ }
+ BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, Pwd, 32,sizeof(BitStream));
+ }
+
+ // Add Lock bit 0
+ if (!reg_readmode) BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, 0, 1,sizeof(BitStream));
+
+ // Add Data if a write command
+ if (!read_cmd) BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, Data, 32,sizeof(BitStream));
+
+ // Add Address
+ if (!reg_readmode) BitStreamLen = T55xx_SetBits (BitStream, BitStreamLen, Block, 3,sizeof(BitStream));
+ }
+
+ // Send Bits to T55xx
// Set up FPGA, 125kHz
LFSetupFPGAForADC(95, true);
StartTicks();
// make sure tag is fully powered up...
WaitMS(5);
-
// Trigger T55x7 in mode.
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- WaitUS(START_GAP);
+ WaitUS(Timing->START_GAP);
+
+ // If long leading 0 send long reference pulse
+ if (downlink_mode == T55xx_DLMode_LLR)
+ T55xxWriteBit (T55xx_LongLeadingReference,Timing); // Send Long Leading Start Reference
+
+ if ((downlink_mode == T55xx_DLMode_1of4) && (BitStreamLen > 0)) { // 1 of 4 need to send 2 bits at a time
+ for ( i = 0; i < BitStreamLen-1; i+=2 ) {
+ SendBits = (BitStream[BitStream_Byte(i )] >> (BitStream_Bit(i )) & 1) << 1; // Bit i
+ SendBits += (BitStream[BitStream_Byte(i+1)] >> (BitStream_Bit(i+1)) & 1); // Bit i+1;
+ T55xxWriteBit (SendBits & 3,Timing);
+ }
+ }
+ else {
+ for (i = 0; i < BitStreamLen; i++) {
+ SendBits = (BitStream[BitStream_Byte(i)] >> BitStream_Bit(i));
+ T55xxWriteBit (SendBits & 1,Timing);
+ }
+ }
+}
+
+// Send T5577 reset command then read stream (see if we can identify the start of the stream)
+void T55xxResetRead(void) {
+ LED_A_ON();
+
+ // send r* 00
+ uint8_t arg = 0x80; // SendCMD will add correct reference mode based on flags (when added).
+
+ // Add in downlink_mode when ready
+ // arg |= 0x00; // dlmode << 3 (00 default - 08 leading 0 - 10 Fixed - 18 1 of 4 )
+
+ //clear buffer now so it does not interfere with timing later
+ BigBuf_Clear_keep_EM();
- // reset tag - op code 00
- T55xxWriteBit(0);
- T55xxWriteBit(0);
+ T55xx_SendCMD (0, 0, 0, arg); //, true);
- TurnReadLFOn(READ_GAP);
+ TurnReadLFOn(T55xx_Timing_FixedBit.READ_GAP);
// Acquisition
DoPartialAcquisition(0, true, BigBuf_max_traceLen(), 0);
}
// Write one card block in page 0, no lock
-void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) {
- LED_A_ON();
- bool PwdMode = arg & 0x1;
- uint8_t Page = (arg & 0x2)>>1;
- bool testMode = arg & 0x4;
- uint32_t i = 0;
-
- // Set up FPGA, 125kHz
- LFSetupFPGAForADC(95, true);
- StartTicks();
- // make sure tag is fully powered up...
- WaitMS(5);
- // Trigger T55x7 in mode.
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- WaitUS(START_GAP);
-
- if (testMode) Dbprintf("TestMODE");
- // Std Opcode 10
- T55xxWriteBit(testMode ? 0 : 1);
- T55xxWriteBit(testMode ? 1 : Page); //Page 0
-
- if (PwdMode) {
- // Send Pwd
- for (i = 0x80000000; i != 0; i >>= 1)
- T55xxWriteBit(Pwd & i);
- }
- // Send Lock bit
- T55xxWriteBit(0);
-
- // Send Data
- for (i = 0x80000000; i != 0; i >>= 1)
- T55xxWriteBit(Data & i);
-
- // Send Block number
- for (i = 0x04; i != 0; i >>= 1)
- T55xxWriteBit(Block & i);
+void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) {
+ /*
+ arg bits
+ xxxxxxx1 0x01 PwdMode
+ xxxxxx1x 0x02 Page
+ xxxxx1xx 0x04 testMode
+ xxx11xxx 0x18 downlink mode
+ xx1xxxxx 0x20 !reg_readmode
+ x1xxxxxx 0x40 called for a read, so no data packet
+ 1xxxxxxx 0x80 reset
+ */
+
+ bool testMode = ((arg & 0x04) == 0x04);
+ arg &= (0xff ^ 0x40); // Called for a write, so ensure it is clear/0
+
+ LED_A_ON ();
+ T55xx_SendCMD (Data, Block, Pwd, arg) ;//, false);
// Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
// so wait a little more)
//DoPartialAcquisition(20, true, 12000);
}
-
// turn field off
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LED_A_OFF();
-}
-// Write one card block in page 0, no lock
-void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) {
- T55xxWriteBlockExt(Data, Block, Pwd, arg);
cmd_send(CMD_ACK,0,0,0,0,0);
+
+ LED_A_OFF ();
}
// Read one card block in page [page]
-void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
+void T55xxReadBlock (uint16_t arg0, uint8_t Block, uint32_t Pwd) {//, struct T55xx_Timing *Timing) {
+
LED_A_ON();
- bool PwdMode = arg0 & 0x1;
- uint8_t Page = (arg0 & 0x2) >> 1;
- uint32_t i = 0;
- bool RegReadMode = (Block == 0xFF);//regular read mode
- //clear buffer now so it does not interfere with timing later
- BigBuf_Clear_ext(false);
+ /*
+ arg bits
+ xxxxxxx1 0x01 PwdMode
+ xxxxxx1x 0x02 Page
+ xxxxx1xx 0x04 testMode
+ xxx11xxx 0x18 downlink mode
+ xx1xxxxx 0x20 !reg_readmode
+ x1xxxxxx 0x40 called for a read, so no data packet
+ 1xxxxxxx 0x80 reset
+ */
+ // Set Read Flag to ensure SendCMD does not add "data" to the packet
+ arg0 |= 0x40;
+
+ // RegRead Mode true of block 0xff
+ if (Block == 0xff) arg0 |= 0x20;
+
//make sure block is at max 7
Block &= 0x7;
- // Set up FPGA, 125kHz to power up the tag
- LFSetupFPGAForADC(95, true);
- StartTicks();
- // make sure tag is fully powered up...
- WaitMS(5);
- // Trigger T55x7 Direct Access Mode with start gap
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- WaitUS(START_GAP);
-
- // Opcode 1[page]
- T55xxWriteBit(1);
- T55xxWriteBit(Page); //Page 0
-
- if (PwdMode) {
- // Send Pwd
- for (i = 0x80000000; i != 0; i >>= 1)
- T55xxWriteBit(Pwd & i);
- }
- // Send a zero bit separation
- T55xxWriteBit(0);
+ //clear buffer now so it does not interfere with timing later
+ BigBuf_Clear_ext(false);
- // Send Block number (if direct access mode)
- if (!RegReadMode)
- for (i = 0x04; i != 0; i >>= 1)
- T55xxWriteBit(Block & i);
+ T55xx_SendCMD (0, Block, Pwd, arg0); //, true);
// Turn field on to read the response
// 137*8 seems to get to the start of data pretty well...
// Turn the field off
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
cmd_send(CMD_ACK,0,0,0,0,0);
+
LED_A_OFF();
}
void T55xxWakeUp(uint32_t Pwd){
LED_B_ON();
- uint32_t i = 0;
-
- // Set up FPGA, 125kHz
- LFSetupFPGAForADC(95, true);
- StartTicks();
- // make sure tag is fully powered up...
- WaitMS(5);
-
- // Trigger T55x7 Direct Access Mode
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- WaitUS(START_GAP);
-
- // Opcode 10
- T55xxWriteBit(1);
- T55xxWriteBit(0); //Page 0
+ /*
+ arg bits
+ xxxxxxx1 0x01 PwdMode
+ xxxxxx1x 0x02 Page
+ xxxxx1xx 0x04 testMode
+ xxx11xxx 0x18 downlink mode
+ xx1xxxxx 0x20 !reg_readmode
+ x1xxxxxx 0x40 called for a read, so no data packet
+ 1xxxxxxx 0x80 reset
+ */
+
+ // r* 10 (00) <pwd> r* for llr , L0 and 1/4 - (00) for L0 and 1/4 - All handled in SendCMD
+ // So, default Opcode 10 and pwd.
+ uint8_t arg = 0x01 | 0x40 | 0x20; //Password Read Call no data | reg_read no block
+
+ // Add in downlink_mode when ready
+ // arg |= 0x00; // dlmode << 3 (00 default - 08 leading 0 - 10 Fixed - 18 1 of 4 )
- // Send Pwd
- for (i = 0x80000000; i != 0; i >>= 1)
- T55xxWriteBit(Pwd & i);
+ T55xx_SendCMD (0, 0, Pwd, arg); //, true);
// Turn and leave field on to let the begin repeating transmission
TurnReadLFOn(20*1000);
void WriteT55xx(uint32_t *blockdata, uint8_t startblock, uint8_t numblocks) {
// write last block first and config block last (if included)
for (uint8_t i = numblocks+startblock; i > startblock; i--) {
- T55xxWriteBlockExt(blockdata[i-1],i-1,0,0);
+ T55xxWriteBlock(blockdata[i-1],i-1,0,0);//,false); //,&T55xx_Timing_FixedBit);
+ //T55xx_SendCMD (blockdata[i-1],i-1,0,0);//,false); //,&T55xx_Timing_FixedBit);
}
}
PrintAndLog(" p <password> - OPTIONAL password (8 hex characters)");\r
PrintAndLog(" o - OPTIONAL override safety check");\r
PrintAndLog(" 1 - OPTIONAL read Page 1 instead of Page 0");\r
+ PrintAndLog(" r <mode> - OPTIONAL downlink encoding '0' fixed bit length (default), '1' long leading reference");\r
+ PrintAndLog(" '2' leading zero, '3' 1 of 4 coding reference"); \r
PrintAndLog(" ****WARNING****");\r
PrintAndLog(" Use of read with password on a tag not configured for a pwd");\r
PrintAndLog(" can damage the tag");\r
PrintAndLog(" p <password> - OPTIONAL password 4bytes (8 hex characters)");\r
PrintAndLog(" 1 - OPTIONAL write Page 1 instead of Page 0");\r
PrintAndLog(" t - OPTIONAL test mode write - ****DANGER****"); \r
+ PrintAndLog(" r <mode> - OPTIONAL downlink encoding '0' fixed bit length (default), '1' long leading reference");\r
+ PrintAndLog(" '2' leading zero, '3' 1 of 4 coding reference"); \r
PrintAndLog("");\r
PrintAndLog("Examples:");\r
PrintAndLog(" lf t55xx write b 3 d 11223344 - write 11223344 to block 3");\r
PrintAndLog("Options:");\r
PrintAndLog(" 1 - if set, use Graphbuffer otherwise read data from tag.");\r
PrintAndLog(" p <password> - OPTIONAL password (8 hex characters)");\r
+ PrintAndLog(" r <mode> - OPTIONAL downlink encoding '0' fixed bit length (default), '1' long leading reference");\r
+ PrintAndLog(" '2' leading zero, '3' 1 of 4 coding reference"); \r
PrintAndLog("");\r
PrintAndLog("Examples:");\r
PrintAndLog(" lf t55xx detect");\r
PrintAndLog(" <password> - [required] password 4bytes (8 hex symbols)");\r
PrintAndLog("");\r
PrintAndLog("Examples:");\r
- PrintAndLog(" lf t55xx wakeup 11223344 - send wakeup password");\r
+ PrintAndLog(" lf t55xx wakeup 11223344 - send wakeup password");\r
return 0;\r
}\r
int usage_t55xx_bruteforce(){\r
PrintAndLog(" password must be 4 bytes (8 hex symbols)");\r
PrintAndLog("Options:");\r
PrintAndLog(" h - this help");\r
+ PrintAndLog(" r <mode> - OPTIONAL downlink encoding '0' fixed bit length (default)"); \r
+ PrintAndLog(" '1' long leading reference, '2' leading zero ");\r
+ PrintAndLog(" '3' 1 of 4 coding reference, '4' special - try all downlink modes");\r
PrintAndLog(" <start_pwd> - 4 byte hex value to start pwd search at");\r
PrintAndLog(" <end_pwd> - 4 byte hex value to end pwd search at");\r
PrintAndLog(" i <*.dic> - loads a default keys dictionary file <*.dic>");\r
PrintAndLog("");\r
PrintAndLog("Examples:");\r
- PrintAndLog(" lf t55xx bruteforce aaaaaaaa bbbbbbbb");\r
- PrintAndLog(" lf t55xx bruteforce i default_pwd.dic");\r
+ PrintAndLog(" lf t55xx bruteforce [r 2] aaaaaaaa bbbbbbbb");\r
+ PrintAndLog(" lf t55xx bruteforce [r 2] i default_pwd.dic");\r
PrintAndLog("");\r
return 0;\r
}\r
}\r
\r
// No args\r
- if (cmdp == 0) return printConfiguration( config );\r
+ if (cmdp == 0) return printConfiguration( config);\r
\r
//Validations\r
if (errors) return usage_t55xx_config();\r
\r
config.block0 = 0;\r
- return printConfiguration ( config );\r
+ return printConfiguration ( config);\r
}\r
\r
-int T55xxReadBlock(uint8_t block, bool page1, bool usepwd, bool override, uint32_t password){\r
+int T55xxReadBlock(uint8_t block, bool page1, bool usepwd, bool override, uint32_t password, uint8_t downlink_mode){\r
//Password mode\r
if ( usepwd ) {\r
// try reading the config block and verify that PWD bit is set before doing this!\r
if ( !override ) {\r
- if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, false, 0 ) ) return 0;\r
+ if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, false, 0,downlink_mode ) ) return 0;\r
if ( !tryDetectModulation() ) {\r
PrintAndLog("Safety Check: Could not detect if PWD bit is set in config block. Exits.");\r
return 0;\r
}\r
}\r
\r
- if (!AquireData(page1, block, usepwd, password) ) return 0;\r
+ if (!AquireData(page1, block, usepwd, password,downlink_mode) ) return 0;\r
if (!DecodeT55xxBlock()) return 0;\r
\r
char blk[10]={0};\r
int CmdT55xxReadBlock(const char *Cmd) {\r
uint8_t block = REGULAR_READ_MODE_BLOCK;\r
uint32_t password = 0; //default to blank Block 7\r
+ uint8_t downlink_mode = 0;\r
+ \r
bool usepwd = false;\r
bool override = false;\r
bool page1 = false;\r
page1 = true;\r
cmdp++;\r
break;\r
+ case 'r':\r
+ case 'R':\r
+ downlink_mode = param_getchar(Cmd, cmdp+1) - '0';\r
+ if (downlink_mode > 3) downlink_mode = 0;\r
+ cmdp +=2;\r
+ break;\r
default:\r
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
errors = true;\r
}\r
\r
printT5xxHeader(page1);\r
- return T55xxReadBlock(block, page1, usepwd, override, password);\r
+ return T55xxReadBlock(block, page1, usepwd, override, password, downlink_mode);\r
}\r
\r
bool DecodeT55xxBlock(){\r
return (bool) ASKDemod("64 0 1", false, false, 1);\r
}\r
\r
+void T55xx_Print_DownlinkMode (uint8_t downlink_mode)\r
+{\r
+ char Msg[80];\r
+ sprintf (Msg,"Downlink Mode used : ");\r
+ \r
+ switch (downlink_mode) {\r
+ case 0 : strcat (Msg,"default/fixed bit length"); break;\r
+ case 1 : strcat (Msg,"long leading reference (r 1)"); break;\r
+ case 2 : strcat (Msg,"leading zero reference (r 2)"); break;\r
+ case 3 : strcat (Msg,"1 of 4 coding reference (r 3)"); break;\r
+ default :\r
+ strcat (Msg,"default/fixed bit length"); break;\r
+\r
+ }\r
+ \r
+ PrintAndLog (Msg);\r
+ \r
+}\r
+\r
int CmdT55xxDetect(const char *Cmd){\r
bool errors = false;\r
bool useGB = false;\r
bool usepwd = false;\r
uint32_t password = 0;\r
uint8_t cmdp = 0;\r
+ uint8_t downlink_mode = 0;\r
\r
while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {\r
switch(param_getchar(Cmd, cmdp)) {\r
useGB = true;\r
cmdp++;\r
break;\r
+ case 'r':\r
+ case 'R':\r
+ downlink_mode = param_getchar(Cmd, cmdp+1) - '0';\r
+ if (downlink_mode > 3) downlink_mode = 0;\r
+ cmdp +=2;\r
+ break; \r
default:\r
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
errors = true;\r
if (errors) return usage_t55xx_detect();\r
\r
if ( !useGB) {\r
- if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, usepwd, password) )\r
+ if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, usepwd, password,downlink_mode) )\r
return 0;\r
}\r
\r
if ( !tryDetectModulation() )\r
PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");\r
-\r
+ else {\r
+ // Add downlink mode for reference.\r
+ T55xx_Print_DownlinkMode (downlink_mode);\r
+ }\r
return 1;\r
}\r
\r
config.block0 = tests[0].block0;\r
config.Q5 = tests[0].Q5;\r
config.ST = tests[0].ST;\r
- printConfiguration( config );\r
+ \r
+ printConfiguration( config);\r
return true;\r
}\r
\r
PrintAndLog("Found [%d] possible matches for modulation.",hits);\r
for(int i=0; i<hits; ++i){\r
PrintAndLog("--[%d]---------------", i+1);\r
- printConfiguration( tests[i] );\r
+ printConfiguration( tests[i]);\r
}\r
}\r
return false;\r
uint8_t block = 0xFF; //default to invalid block\r
uint32_t data = 0; //default to blank Block \r
uint32_t password = 0; //default to blank Block 7\r
+ uint32_t downlink_mode = 0;\r
+ \r
bool usepwd = false;\r
bool page1 = false; \r
bool gotdata = false;\r
page1 = true;\r
cmdp++;\r
break;\r
+ case 'r':\r
+ case 'R':\r
+ downlink_mode = param_getchar(Cmd, cmdp+1) - '0';\r
+ if (downlink_mode > 3) downlink_mode = 0;\r
+ cmdp +=2;\r
+ break;\r
default:\r
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
errors = true;\r
UsbCommand resp;\r
c.d.asBytes[0] = (page1) ? 0x2 : 0; \r
c.d.asBytes[0] |= (testMode) ? 0x4 : 0; \r
-\r
+ c.d.asBytes[0] |= (downlink_mode << 3);\r
+ \r
char pwdStr[16] = {0};\r
snprintf(pwdStr, sizeof(pwdStr), "pwd: 0x%08X", password);\r
\r
PrintAndLog("Writing page %d block: %02d data: 0x%08X %s", page1, block, data, (usepwd) ? pwdStr : "" );\r
-\r
+ \r
//Password mode\r
if (usepwd) {\r
c.arg[2] = password;\r
c.d.asBytes[0] |= 0x1; \r
}\r
+ \r
clearCommandBuffer();\r
SendCommand(&c);\r
if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){\r
return usage_t55xx_trace();\r
\r
if (strlen(Cmd)==0)\r
- if ( !AquireData( T55x7_PAGE1, REGULAR_READ_MODE_BLOCK, pwdmode, password ) )\r
+ if ( !AquireData( T55x7_PAGE1, REGULAR_READ_MODE_BLOCK, pwdmode, password,0 ) )\r
return 0;\r
\r
if ( config.Q5 ) {\r
return usage_t55xx_info();\r
\r
if (strlen(Cmd)==0)\r
- if ( !AquireData( T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, pwdmode, password ) )\r
+ if ( !AquireData( T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, pwdmode, password,0 ) )\r
return 1;\r
\r
if (!DecodeT55xxBlock()) return 1;\r
\r
printT5xxHeader(0);\r
for ( uint8_t i = 0; i <8; ++i)\r
- T55xxReadBlock(i, 0, usepwd, override, password);\r
+ T55xxReadBlock(i, 0, usepwd, override, password,0);\r
\r
printT5xxHeader(1);\r
for ( uint8_t i = 0; i<4; i++)\r
- T55xxReadBlock(i, 1, usepwd, override, password); \r
+ T55xxReadBlock(i, 1, usepwd, override, password,0); \r
\r
return 1;\r
}\r
\r
-int AquireData( uint8_t page, uint8_t block, bool pwdmode, uint32_t password ){\r
+int AquireData( uint8_t page, uint8_t block, bool pwdmode, uint32_t password, uint8_t downlink_mode ){\r
// arg0 bitmodes:\r
// bit0 = pwdmode\r
// bit1 = page to read from\r
uint8_t arg0 = (page<<1) | pwdmode;\r
+ arg0 |= (downlink_mode << 3);\r
UsbCommand c = {CMD_T55XX_READ_BLOCK, {arg0, block, password}};\r
\r
clearCommandBuffer();\r
uint32_t start_password = 0x00000000; //start password\r
uint32_t end_password = 0xFFFFFFFF; //end password\r
bool found = false;\r
-\r
+ uint8_t downlink_mode = 0;\r
+ bool try_all_dl_modes = false;\r
+ uint8_t dl_mode = 0;\r
+ uint8_t cmd_offset = 0;\r
+ int cmd_opt = 0;\r
+ \r
char cmdp = param_getchar(Cmd, 0);\r
+ \r
if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_bruteforce();\r
+ if (cmdp == 'r' || cmdp == 'R') {\r
+ downlink_mode = param_getchar(Cmd, 1) - '0'; // get 2nd option, as this is fixed order.\r
+ if (downlink_mode == 4) try_all_dl_modes = true;\r
+ if (downlink_mode > 3) downlink_mode = 0;\r
+ cmd_opt += 2; // To help start/end passwords for range to be found\r
+ cmd_offset += 4; // r <sp> x <sp> To help the string offset for filename start position in cmd\r
+ cmdp = param_getchar(Cmd, 2); // get 3rd option, as this is fixed order.\r
+ }\r
\r
keyBlock = calloc(stKeyBlock, 6);\r
if (keyBlock == NULL) return 1;\r
\r
int len = strlen(Cmd+2);\r
if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;\r
- memcpy(filename, Cmd+2, len);\r
+ memcpy(filename, Cmd+2+cmd_offset, len);\r
\r
FILE * f = fopen( filename , "r");\r
\r
testpwd = bytes_to_num(keyBlock + 4*c, 4);\r
\r
PrintAndLog("Testing %08X", testpwd);\r
+ \r
+ // Try each downlink_mode if asked to \r
+ // donwlink_mode will = 0 if > 3 or set to 0, so loop from 0 - 3\r
+ for (dl_mode = downlink_mode; dl_mode <= 3; dl_mode++){\r
+ if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, testpwd, dl_mode)) {\r
+ PrintAndLog("Acquiring data from device failed. Quitting");\r
+ free(keyBlock);\r
+ return 0;\r
+ }\r
\r
- if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, testpwd)) {\r
- PrintAndLog("Aquireing data from device failed. Quitting");\r
- free(keyBlock);\r
- return 0;\r
- }\r
+ found = tryDetectModulation();\r
\r
- found = tryDetectModulation();\r
+ if ( found ) {\r
+ PrintAndLog("Found valid password: [%08X]", testpwd);\r
+ free(keyBlock);\r
+ \r
+ T55xx_Print_DownlinkMode (dl_mode);\r
\r
- if ( found ) {\r
- PrintAndLog("Found valid password: [%08X]", testpwd);\r
- free(keyBlock);\r
- return 0;\r
- }\r
+ return 0;\r
+ }\r
+ if (!try_all_dl_modes) // Exit loop if not trying all downlink modes\r
+ dl_mode = 4;\r
+ } \r
}\r
PrintAndLog("Password NOT found.");\r
free(keyBlock);\r
// Try to read Block 7, first :)\r
\r
// incremental pwd range search\r
- start_password = param_get32ex(Cmd, 0, 0, 16);\r
- end_password = param_get32ex(Cmd, 1, 0, 16);\r
+ start_password = param_get32ex(Cmd, cmd_opt , 0, 16);\r
+ end_password = param_get32ex(Cmd, cmd_opt+1 , 0, 16);\r
\r
if ( start_password >= end_password ) {\r
free(keyBlock);\r
free(keyBlock);\r
return 0;\r
}\r
+ // Try each downlink_mode if asked to \r
+ // donwlink_mode will = 0 if > 3 or set to 0, so loop from 0 - 3\r
+ for (dl_mode = downlink_mode; dl_mode <= 3; dl_mode++){\r
+ if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, i,dl_mode)) {\r
+ PrintAndLog("Acquiring data from device failed. Quitting");\r
+ free(keyBlock);\r
+ return 0;\r
+ }\r
+ found = tryDetectModulation();\r
\r
- if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, true, i)) {\r
- PrintAndLog("Aquireing data from device failed. Quitting");\r
- free(keyBlock);\r
- return 0;\r
+ if (found) break;\r
+ if (!try_all_dl_modes) // Exit loop if not trying all downlink modes\r
+ dl_mode = 4; \r
}\r
- found = tryDetectModulation();\r
-\r
if (found) break;\r
i++;\r
}\r
\r
- PrintAndLog("");\r
-\r
- if (found)\r
+ if (found){\r
PrintAndLog("Found valid password: [%08x]", i);\r
- else\r
+ T55xx_Print_DownlinkMode (downlink_mode);\r
+ }\r
+ else{\r
+ PrintAndLog("");\r
PrintAndLog("Password NOT found. Last tried: [%08x]", --i);\r
+ }\r
\r
free(keyBlock);\r
return 0;\r
}\r
-\r
// note length of data returned is different for different chips. \r
// some return all page 1 (64 bits) and others return just that block (32 bits) \r
// unfortunately the 64 bits makes this more likely to get a false positive...\r
bool st = true;\r
\r
if ( getData ) {\r
- if ( !AquireData(T55x7_PAGE1, 1, false, 0) )\r
+ if ( !AquireData(T55x7_PAGE1, 1, false, 0,0) )\r
return false;\r
}\r
\r
if (errors) return usage_t55xx_detectP1();\r
\r
if ( !useGB ) {\r
- if ( !AquireData(T55x7_PAGE1, 1, usepwd, password) )\r
+ if ( !AquireData(T55x7_PAGE1, 1, usepwd, password,0) )\r
return false;\r
}\r
bool success = tryDetectP1(false);\r
\r
static command_t CommandTable[] = {\r
{"help", CmdHelp, 1, "This help"},\r
- {"bruteforce",CmdT55xxBruteForce,0, "<start password> <end password> [i <*.dic>] Simple bruteforce attack to find password"},\r
+ {"bruteforce",CmdT55xxBruteForce,0, "<start password> <end password> [i <*.dic>] Simple bruteforce attack to find password"},\r
{"config", CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"},\r
{"detect", CmdT55xxDetect, 1, "[1] Try detecting the tag modulation from reading the configuration block."},\r
{"p1detect", CmdT55xxDetectPage1,1, "[1] Try detecting if this is a t55xx tag by reading page 1"},\r
extern bool tryDetectP1(bool getData);\r
bool test(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk, bool *Q5);\r
int special(const char *Cmd);\r
-int AquireData( uint8_t page, uint8_t block, bool pwdmode, uint32_t password );\r
+int AquireData( uint8_t page, uint8_t block, bool pwdmode, uint32_t password,uint8_t downlink_mode );\r
\r
void printT55x7Trace( t55x7_tracedata_t data, uint8_t repeat );\r
void printT5555Trace( t5555_tracedata_t data, uint8_t repeat );\r
projects / proxmark3-svn / commitdiff