Merge pull request #337 from Proxmark/iceman1001-patch-4

[proxmark3-svn] / armsrc / iclass.c

diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index f99d0ecac4dc18d421433d310c73b160d696eecd..f69d0be28f365cfae84ed7292f7bb90b2317e5fc 100644 (file)
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -1473,7 +1473,7 @@ 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 +1580,8 @@ 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 +1661,7 @@ 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 +1671,7 @@ 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);
 }
 


@@ -1682,21 +1682,28 @@ void ReaderIClass(uint8_t arg0) {
        uint8_t card_data[6 * 8]={0};
        memset(card_data, 0xFF, sizeof(card_data));
        uint8_t last_csn[8]={0};
        uint8_t card_data[6 * 8]={0};
        memset(card_data, 0xFF, sizeof(card_data));
        uint8_t last_csn[8]={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;


@@ -1721,21 +1728,22 @@ 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");
                        }


@@ -1747,16 +1755,15 @@ 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();
                //Send back to client, but don't bother if we already sent this
                if(memcmp(last_csn, card_data, 8) != 0)
                {
                // with 0xFF:s in block 3 and 4.
 
                LED_B_ON();
                //Send back to client, but don't bother if we already sent this
                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();


@@ -1983,18 +1990,26 @@ void iClass_Dump(uint8_t blockno, uint8_t numblks) {
 }
 
 bool iClass_WriteBlock_ext(uint8_t blockNo, uint8_t *data) {
 }
 
 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 };
+       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
        //uint8_t readblockdata[10];
        //write[1] = blockNo;
        memcpy(write+2, data, 12); // data + mac

+       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};
        uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};

-       bool isOK;
+       bool isOK = false;
+

        isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
        isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);

-       if (isOK) {
+       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]);
                //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)) {
-                       //error try again
-                       isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+               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;