]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/iclass.c
`hf mf sniff` small fix
[proxmark3-svn] / armsrc / iclass.c
index 9a70c06be0b038b66c76a21c4ad38923af4e3d78..f9aedc9577f17a89c36b9b56d82459b6e8c93f75 100644 (file)
@@ -42,6 +42,7 @@
 #include "string.h"
 #include "common.h"
 #include "cmd.h"
 #include "string.h"
 #include "common.h"
 #include "cmd.h"
+#include "iso14443a.h"
 // Needed for CRC in emulation mode;
 // same construction as in ISO 14443;
 // different initial value (CRC_ICLASS)
 // Needed for CRC in emulation mode;
 // same construction as in ISO 14443;
 // different initial value (CRC_ICLASS)
@@ -49,6 +50,7 @@
 #include "iso15693tools.h"
 #include "protocols.h"
 #include "optimized_cipher.h"
 #include "iso15693tools.h"
 #include "protocols.h"
 #include "optimized_cipher.h"
+#include "usb_cdc.h" // for usb_poll_validate_length
 
 static int timeout = 4096;
 
 
 static int timeout = 4096;
 
@@ -1447,7 +1449,7 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int
     }
     WDT_HIT();
   }
     }
     WDT_HIT();
   }
-  if (samples) *samples = (c + *wait) << 3;
+  if (samples && wait) *samples = (c + *wait) << 3;
 }
 
 
 }
 
 
@@ -1473,7 +1475,7 @@ void CodeIClassCommand(const uint8_t * cmd, int len)
     for(j = 0; j < 4; j++) {
       for(k = 0; k < 4; k++) {
                        if(k == (b & 3)) {
     for(j = 0; j < 4; j++) {
       for(k = 0; k < 4; k++) {
                        if(k == (b & 3)) {
-                               ToSend[++ToSendMax] = 0x0f;
+                               ToSend[++ToSendMax] = 0xf0;
                        }
                        else {
                                ToSend[++ToSendMax] = 0x00;
                        }
                        else {
                                ToSend[++ToSendMax] = 0x00;
@@ -1580,8 +1582,8 @@ void setupIclassReader()
 {
     FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
     // Reset trace buffer
 {
     FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
     // Reset trace buffer
-       set_tracing(TRUE);
-       clear_trace();
+         set_tracing(TRUE);
+         clear_trace();
 
     // Setup SSC
     FpgaSetupSsc();
 
     // Setup SSC
     FpgaSetupSsc();
@@ -1661,7 +1663,7 @@ uint8_t handshakeIclassTag_ext(uint8_t *card_data, bool use_credit_key)
        //Flag that we got to at least stage 1, read CSN
        read_status = 1;
 
        //Flag that we got to at least stage 1, read CSN
        read_status = 1;
 
-       // Card selected, now read e-purse (cc)
+       // Card selected, now read e-purse (cc) (only 8 bytes no CRC)
        ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
        if(ReaderReceiveIClass(resp) == 8) {
                //Save CC (e-purse) in response data
        ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
        if(ReaderReceiveIClass(resp) == 8) {
                //Save CC (e-purse) in response data
@@ -1671,7 +1673,7 @@ uint8_t handshakeIclassTag_ext(uint8_t *card_data, bool use_credit_key)
 
        return read_status;
 }
 
        return read_status;
 }
-uint8_t handshakeIclassTag(uint8_t *card_data){
+uint8_t handshakeIclassTag(uint8_t *card_data) {
        return handshakeIclassTag_ext(card_data, false);
 }
 
        return handshakeIclassTag_ext(card_data, false);
 }
 
@@ -1681,28 +1683,37 @@ void ReaderIClass(uint8_t arg0) {
 
        uint8_t card_data[6 * 8]={0};
        memset(card_data, 0xFF, sizeof(card_data));
 
        uint8_t card_data[6 * 8]={0};
        memset(card_data, 0xFF, sizeof(card_data));
-       uint8_t last_csn[8]={0};
-       
+       uint8_t last_csn[8]={0,0,0,0,0,0,0,0};
+       uint8_t resp[ICLASS_BUFFER_SIZE];
+       memset(resp, 0xFF, sizeof(resp));
        //Read conf block CRC(0x01) => 0xfa 0x22
        uint8_t readConf[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x01, 0xfa, 0x22};
        //Read conf block CRC(0x01) => 0xfa 0x22
        uint8_t readConf[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x01, 0xfa, 0x22};
-       //Read conf block CRC(0x05) => 0xde  0x64
+       //Read App Issuer Area block CRC(0x05) => 0xde  0x64
        uint8_t readAA[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x05, 0xde, 0x64};
 
        uint8_t readAA[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x05, 0xde, 0x64};
 
-
        int read_status= 0;
        uint8_t result_status = 0;
        int read_status= 0;
        uint8_t result_status = 0;
+       // flag to read until one tag is found successfully
        bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
        bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
+       // flag to only try 5 times to find one tag then return
        bool try_once = arg0 & FLAG_ICLASS_READER_ONE_TRY;
        bool try_once = arg0 & FLAG_ICLASS_READER_ONE_TRY;
-       bool use_credit_key = false;
-       if (arg0 & FLAG_ICLASS_READER_CEDITKEY)
-               use_credit_key = true;
-       set_tracing(TRUE);
+       // if neither abort_after_read nor try_once then continue reading until button pressed.
+
+       bool use_credit_key = arg0 & FLAG_ICLASS_READER_CEDITKEY;
+       // test flags for what blocks to be sure to read
+       uint8_t flagReadConfig = arg0 & FLAG_ICLASS_READER_CONF;
+       uint8_t flagReadCC = arg0 & FLAG_ICLASS_READER_CC;
+       uint8_t flagReadAA = arg0 & FLAG_ICLASS_READER_AA;
+
+       set_tracing(true);
        setupIclassReader();
 
        uint16_t tryCnt=0;
        setupIclassReader();
 
        uint16_t tryCnt=0;
-       while(!BUTTON_PRESS())
+       bool userCancelled = BUTTON_PRESS() || usb_poll_validate_length();
+       while(!userCancelled)
        {
        {
-               if (try_once && tryCnt > 5) break; 
+               // if only looking for one card try 2 times if we missed it the first time
+               if (try_once && tryCnt > 2) break; 
                tryCnt++;
                if(!tracing) {
                        DbpString("Trace full");
                tryCnt++;
                if(!tracing) {
                        DbpString("Trace full");
@@ -1721,21 +1732,22 @@ void ReaderIClass(uint8_t arg0) {
                // moving CC forward 8 bytes
                memcpy(card_data+16,card_data+8, 8);
                //Read block 1, config
                // moving CC forward 8 bytes
                memcpy(card_data+16,card_data+8, 8);
                //Read block 1, config
-               if(arg0 & FLAG_ICLASS_READER_CONF)
-               {
-                       if(sendCmdGetResponseWithRetries(readConf, sizeof(readConf),card_data+8, 10, 10))
+               if(flagReadConfig) {
+                       if(sendCmdGetResponseWithRetries(readConf, sizeof(readConf), resp, 10, 10))
                        {
                                result_status |= FLAG_ICLASS_READER_CONF;
                        {
                                result_status |= FLAG_ICLASS_READER_CONF;
+                               memcpy(card_data+8, resp, 8);
                        } else {
                                Dbprintf("Failed to dump config block");
                        }
                }
 
                //Read block 5, AA
                        } else {
                                Dbprintf("Failed to dump config block");
                        }
                }
 
                //Read block 5, AA
-               if(arg0 & FLAG_ICLASS_READER_AA){
-                       if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA),card_data+(8*4), 10, 10))
+               if(flagReadAA) {
+                       if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA), resp, 10, 10))
                        {
                                result_status |= FLAG_ICLASS_READER_AA;
                        {
                                result_status |= FLAG_ICLASS_READER_AA;
+                               memcpy(card_data+(8*5), resp, 8);
                        } else {
                                //Dbprintf("Failed to dump AA block");
                        }
                        } else {
                                //Dbprintf("Failed to dump AA block");
                        }
@@ -1747,19 +1759,20 @@ void ReaderIClass(uint8_t arg0) {
                // (3,4 write-only, kc and kd)
                // 5 Application issuer area
                //
                // (3,4 write-only, kc and kd)
                // 5 Application issuer area
                //
-               //Then we can 'ship' back the 8 * 5 bytes of data,
+               //Then we can 'ship' back the 8 * 6 bytes of data,
                // with 0xFF:s in block 3 and 4.
 
                LED_B_ON();
                // with 0xFF:s in block 3 and 4.
 
                LED_B_ON();
-               //Send back to client, but don't bother if we already sent this
+               //Send back to client, but don't bother if we already sent this - 
+               //  only useful if looping in arm (not try_once && not abort_after_read)
                if(memcmp(last_csn, card_data, 8) != 0)
                {
                if(memcmp(last_csn, card_data, 8) != 0)
                {
-                       // If caller requires that we get CC, continue until we got it
-                       if( (arg0 & read_status & FLAG_ICLASS_READER_CC) || !(arg0 & FLAG_ICLASS_READER_CC))
-                       {
+                       // If caller requires that we get Conf, CC, AA, continue until we got it
+                       if( (result_status ^ FLAG_ICLASS_READER_CSN ^ flagReadConfig ^ flagReadCC ^ flagReadAA) == 0) {
                                cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data));
                                if(abort_after_read) {
                                        LED_A_OFF();
                                cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data));
                                if(abort_after_read) {
                                        LED_A_OFF();
+                                       LED_B_OFF();
                                        return;
                                }
                                //Save that we already sent this....
                                        return;
                                }
                                //Save that we already sent this....
@@ -1768,9 +1781,14 @@ void ReaderIClass(uint8_t arg0) {
 
                }
                LED_B_OFF();
 
                }
                LED_B_OFF();
+               userCancelled = BUTTON_PRESS() || usb_poll_validate_length();
        }
        }
-    cmd_send(CMD_ACK,0,0,0,card_data, 0);
-    LED_A_OFF();
+       if (userCancelled) {
+               cmd_send(CMD_ACK,0xFF,0,0,card_data, 0);
+       } else {
+               cmd_send(CMD_ACK,0,0,0,card_data, 0);
+       }
+       LED_A_OFF();
 }
 
 void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
 }
 
 void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
@@ -1911,51 +1929,63 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
        LED_A_OFF();
 }
 
        LED_A_OFF();
 }
 
+void iClass_ReadCheck(uint8_t  blockNo, uint8_t keyType) {
+       uint8_t readcheck[] = { keyType, blockNo };
+       uint8_t resp[] = {0,0,0,0,0,0,0,0};
+       size_t isOK = 0;
+       isOK = sendCmdGetResponseWithRetries(readcheck, sizeof(readcheck), resp, sizeof(resp), 6);
+       cmd_send(CMD_ACK,isOK,0,0,0,0);
+}
+
 void iClass_Authentication(uint8_t *MAC) {
 void iClass_Authentication(uint8_t *MAC) {
-       uint8_t check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+       uint8_t check[] = { ICLASS_CMD_CHECK, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        uint8_t resp[ICLASS_BUFFER_SIZE];
        memcpy(check+5,MAC,4);
        bool isOK;
        uint8_t resp[ICLASS_BUFFER_SIZE];
        memcpy(check+5,MAC,4);
        bool isOK;
-       isOK = sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5);
+       isOK = sendCmdGetResponseWithRetries(check, sizeof(check), resp, 4, 6);
        cmd_send(CMD_ACK,isOK,0,0,0,0);
 }
        cmd_send(CMD_ACK,isOK,0,0,0,0);
 }
-bool iClass_ReadBlock(uint8_t blockNo, uint8_t keyType, uint8_t *readdata) {
-       uint8_t readcmd[] = {keyType, blockNo}; //0x88, 0x00
-       uint8_t resp[8];
-       size_t isOK = 1;
+bool iClass_ReadBlock(uint8_t blockNo, uint8_t *readdata) {
+       uint8_t readcmd[] = {ICLASS_CMD_READ_OR_IDENTIFY, blockNo, 0x00, 0x00}; //0x88, 0x00 // can i use 0C?
+       char bl = blockNo;
+       uint16_t rdCrc = iclass_crc16(&bl, 1);
+       readcmd[2] = rdCrc >> 8;
+       readcmd[3] = rdCrc & 0xff;
+       uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK = false;
 
 
-       readcmd[1] = blockNo;
-       isOK = sendCmdGetResponseWithRetries(readcmd, sizeof(readcmd),resp, 8, 5);
-       memcpy(readdata,resp,sizeof(resp));
+       //readcmd[1] = blockNo;
+       isOK = sendCmdGetResponseWithRetries(readcmd, sizeof(readcmd), resp, 10, 10);
+       memcpy(readdata, resp, sizeof(resp));
 
        return isOK;
 }
 
 
        return isOK;
 }
 
-void iClass_ReadBlk(uint8_t blockno, uint8_t keyType) {
-       uint8_t readblockdata[8];
+void iClass_ReadBlk(uint8_t blockno) {
+       uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};
        bool isOK = false;
        bool isOK = false;
-       isOK = iClass_ReadBlock(blockno, keyType, readblockdata);
-       cmd_send(CMD_ACK,isOK,0,0,readblockdata,8);
+       isOK = iClass_ReadBlock(blockno, readblockdata);
+       cmd_send(CMD_ACK, isOK, 0, 0, readblockdata, 8);
 }
 
 }
 
-void iClass_Dump(uint8_t blockno, uint8_t numblks, uint8_t keyType) {
-       uint8_t readblockdata[8];
+void iClass_Dump(uint8_t blockno, uint8_t numblks) {
+       uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};
        bool isOK = false;
        uint8_t blkCnt = 0;
 
        BigBuf_free();
        uint8_t *dataout = BigBuf_malloc(255*8);
        bool isOK = false;
        uint8_t blkCnt = 0;
 
        BigBuf_free();
        uint8_t *dataout = BigBuf_malloc(255*8);
-       memset(dataout,0xFF,255*8);
        if (dataout == NULL){
                Dbprintf("out of memory");
                OnError(1);
                return;
        }
        if (dataout == NULL){
                Dbprintf("out of memory");
                OnError(1);
                return;
        }
+       memset(dataout,0xFF,255*8);
 
        for (;blkCnt < numblks; blkCnt++) {
 
        for (;blkCnt < numblks; blkCnt++) {
-               isOK = iClass_ReadBlock(blockno+blkCnt, keyType, readblockdata);
-               if (!isOK || (readblockdata[0] == 0xBB || readblockdata[7] == 0x33 || readblockdata[2] == 0xBB)) { //try again
-                       isOK = iClass_ReadBlock(blockno+blkCnt, keyType, readblockdata);
+               isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);
+               if (!isOK || (readblockdata[0] == 0xBB || readblockdata[7] == 0xBB || readblockdata[2] == 0xBB)) { //try again
+                       isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);
                        if (!isOK) {
                                Dbprintf("Block %02X failed to read", blkCnt+blockno);
                                break;
                        if (!isOK) {
                                Dbprintf("Block %02X failed to read", blkCnt+blockno);
                                break;
@@ -1970,30 +2000,34 @@ void iClass_Dump(uint8_t blockno, uint8_t numblks, uint8_t keyType) {
        BigBuf_free();
 }
 
        BigBuf_free();
 }
 
-bool iClass_WriteBlock_ext(uint8_t blockNo, uint8_t keyType, uint8_t *data) {
-       uint8_t write[] = { 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-       uint8_t readblockdata[8];
-       write[1] = blockNo;
+bool iClass_WriteBlock_ext(uint8_t blockNo, uint8_t *data) {
+       uint8_t write[] = { ICLASS_CMD_UPDATE, blockNo, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+       //uint8_t readblockdata[10];
+       //write[1] = blockNo;
        memcpy(write+2, data, 12); // data + mac
        memcpy(write+2, data, 12); // data + mac
-       uint8_t resp[10];
-       bool isOK;
-       isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),5);
-       if (isOK) {
-               isOK = iClass_ReadBlock(blockNo, keyType, readblockdata);
-               //try again
-               if (!isOK || (readblockdata[0] == 0xBB || readblockdata[7] == 0xBB || readblockdata[2] == 0xBB)) 
-                       isOK = iClass_ReadBlock(blockNo, keyType, readblockdata);
-       }
-       if (isOK) {
-               if (memcmp(write+2,readblockdata,sizeof(readblockdata)) != 0){
-                       isOK=false;
+       char *wrCmd = (char *)(write+1); 
+       uint16_t wrCrc = iclass_crc16(wrCmd, 13);
+       write[14] = wrCrc >> 8;
+       write[15] = wrCrc & 0xff;
+       uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK = false;
+
+       isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+       if (isOK) { //if reader responded correctly
+               //Dbprintf("WriteResp: %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",resp[0],resp[1],resp[2],resp[3],resp[4],resp[5],resp[6],resp[7],resp[8],resp[9]);
+               if (memcmp(write+2,resp,8)) {  //if response is not equal to write values
+                       if (blockNo != 3 && blockNo != 4) { //if not programming key areas (note key blocks don't get programmed with actual key data it is xor data)
+                               //error try again
+                               isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+                       } 
+                       
                }
        }
        return isOK;
 }
 
                }
        }
        return isOK;
 }
 
-void iClass_WriteBlock(uint8_t blockNo, uint8_t keyType, uint8_t *data) {
-       bool isOK = iClass_WriteBlock_ext(blockNo, keyType, data);
+void iClass_WriteBlock(uint8_t blockNo, uint8_t *data) {
+       bool isOK = iClass_WriteBlock_ext(blockNo, data);
        if (isOK){
                Dbprintf("Write block [%02x] successful",blockNo);
        } else {
        if (isOK){
                Dbprintf("Write block [%02x] successful",blockNo);
        } else {
@@ -2002,17 +2036,17 @@ void iClass_WriteBlock(uint8_t blockNo, uint8_t keyType, uint8_t *data) {
        cmd_send(CMD_ACK,isOK,0,0,0,0); 
 }
 
        cmd_send(CMD_ACK,isOK,0,0,0,0); 
 }
 
-void iClass_Clone(uint8_t startblock, uint8_t endblock, uint8_t keyType, uint8_t *data) {
+void iClass_Clone(uint8_t startblock, uint8_t endblock, uint8_t *data) {
        int i;
        int written = 0;
        int total_block = (endblock - startblock) + 1;
        for (i = 0; i < total_block;i++){
                // block number
        int i;
        int written = 0;
        int total_block = (endblock - startblock) + 1;
        for (i = 0; i < total_block;i++){
                // block number
-               if (iClass_WriteBlock_ext(i+startblock, keyType, data+(i*12))){
+               if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
                        Dbprintf("Write block [%02x] successful",i + startblock);
                        written++;
                } else {
                        Dbprintf("Write block [%02x] successful",i + startblock);
                        written++;
                } else {
-                       if (iClass_WriteBlock_ext(i+startblock, keyType, data+(i*12))){
+                       if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
                                Dbprintf("Write block [%02x] successful",i + startblock);
                                written++;
                        } else {
                                Dbprintf("Write block [%02x] successful",i + startblock);
                                written++;
                        } else {
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