some @iceman1001 s coverty scan fixes

[proxmark3-svn] / armsrc / iclass.c

diff --git a/armsrc/iclass.c b/armsrc/iclass.c
index 260e6a6033f7f736173c0558ee8c034366f05434..4e4854caa11943d061ad66e0ed3ae9d6328c6be6 100644 (file)
--- a/armsrc/iclass.c
+++ b/armsrc/iclass.c
@@ -1125,7 +1125,6 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
        int resp_cc_len;
 
        uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);
        int resp_cc_len;
 
        uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);

-       memset(receivedCmd, 0x44, MAX_FRAME_SIZE);

        int len;
 
        // Prepare card messages
        int len;
 
        // Prepare card messages


@@ -1336,7 +1335,6 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)
                        }
 
                }
                        }
 
                }

-               memset(receivedCmd, 0x44, MAX_FRAME_SIZE);

        }
 
        //Dbprintf("%x", cmdsRecvd);
        }
 
        //Dbprintf("%x", cmdsRecvd);


@@ -1603,16 +1601,16 @@ void setupIclassReader()
 
 }
 
 
 }
 

-size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)
+bool sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)

 {
        while(retries-- > 0)
        {
                ReaderTransmitIClass(command, cmdsize);
                if(expected_size == ReaderReceiveIClass(resp)){
 {
        while(retries-- > 0)
        {
                ReaderTransmitIClass(command, cmdsize);
                if(expected_size == ReaderReceiveIClass(resp)){

-                       return 0;
+                       return true;

                }
        }
                }
        }

-       return 1;//Error
+       return false;//Error

 }
 
 /**
 }
 
 /**


@@ -1622,12 +1620,18 @@ size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t*
  *         1 = Got CSN
  *         2 = Got CSN and CC
  */
  *         1 = Got CSN
  *         2 = Got CSN and CC
  */

-uint8_t handshakeIclassTag(uint8_t *card_data)
+uint8_t handshakeIclassTag_ext(uint8_t *card_data, bool use_credit_key)

 {
        static uint8_t act_all[]     = { 0x0a };
 {
        static uint8_t act_all[]     = { 0x0a };

-       static uint8_t identify[]    = { 0x0c };
+       //static uint8_t identify[]    = { 0x0c };
+       static uint8_t identify[]    = { 0x0c, 0x00, 0x73, 0x33 };

        static uint8_t select[]      = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        static uint8_t readcheck_cc[]= { 0x88, 0x02 };
        static uint8_t select[]      = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
        static uint8_t readcheck_cc[]= { 0x88, 0x02 };

+       if (use_credit_key)
+               readcheck_cc[0] = 0x18;
+       else
+               readcheck_cc[0] = 0x88;
+

        uint8_t resp[ICLASS_BUFFER_SIZE];
 
        uint8_t read_status = 0;
        uint8_t resp[ICLASS_BUFFER_SIZE];
 
        uint8_t read_status = 0;


@@ -1662,48 +1666,85 @@ uint8_t handshakeIclassTag(uint8_t *card_data)
        if(ReaderReceiveIClass(resp) == 8) {
                //Save CC (e-purse) in response data
                memcpy(card_data+8,resp,8);
        if(ReaderReceiveIClass(resp) == 8) {
                //Save CC (e-purse) in response data
                memcpy(card_data+8,resp,8);

-
-               //Got both
-               read_status = 2;
+               read_status++;

        }
 
        return read_status;
 }
        }
 
        return read_status;
 }

+uint8_t handshakeIclassTag(uint8_t *card_data){
+       return handshakeIclassTag_ext(card_data, false);
+}
+

 
 // Reader iClass Anticollission
 void ReaderIClass(uint8_t arg0) {
 
 
 // Reader iClass Anticollission
 void ReaderIClass(uint8_t arg0) {
 

-    uint8_t card_data[24]={0};
-    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};

        
        

-    int read_status= 0;
-    bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
-       bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC;
+       //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
+       uint8_t readAA[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x05, 0xde, 0x64};
+
+
+       int read_status= 0;
+       uint8_t result_status = 0;
+       bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
+       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);
        set_tracing(TRUE);

-    setupIclassReader();
-
-    size_t datasize = 0;
-    while(!BUTTON_PRESS())
-    {
+       setupIclassReader();

 
 

+       uint16_t tryCnt=0;
+       while(!BUTTON_PRESS())
+       {
+               if (try_once && tryCnt > 5) break; 
+               tryCnt++;

                if(!tracing) {
                        DbpString("Trace full");
                        break;
                }
                WDT_HIT();
 
                if(!tracing) {
                        DbpString("Trace full");
                        break;
                }
                WDT_HIT();
 

-               read_status = handshakeIclassTag(card_data);
+               read_status = handshakeIclassTag_ext(card_data, use_credit_key);

 
                if(read_status == 0) continue;
 
                if(read_status == 0) continue;

-               if(read_status == 1) datasize = 8;
-               if(read_status == 2) datasize = 16;
+               if(read_status == 1) result_status = FLAG_ICLASS_READER_CSN;
+               if(read_status == 2) result_status = FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CC;
+
+               // handshakeIclass returns CSN|CC, but the actual block
+               // layout is CSN|CONFIG|CC, so here we reorder the data,
+               // 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))
+                       {
+                               result_status |= FLAG_ICLASS_READER_CONF;
+                       } else {
+                               Dbprintf("Failed to dump config block");
+                       }
+               }

 
 

-               //Todo, read the public blocks 1,5 aswell:
-               //
-               // 0 : CSN (we already have)
+               //Read block 5, AA
+               if(arg0 & FLAG_ICLASS_READER_AA){
+                       if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA),card_data+(8*4), 10, 10))
+                       {
+                               result_status |= FLAG_ICLASS_READER_AA;
+                       } else {
+                               //Dbprintf("Failed to dump AA block");
+                       }
+               }
+
+               // 0 : CSN

                // 1 : Configuration
                // 1 : Configuration

-               // 2 : e-purse (we already have)
-               // (3,4 write-only)
+               // 2 : e-purse
+               // (3,4 write-only, kc and kd)

                // 5 Application issuer area
                //
                //Then we can 'ship' back the 8 * 5 bytes of data,
                // 5 Application issuer area
                //
                //Then we can 'ship' back the 8 * 5 bytes of data,


@@ -1713,10 +1754,10 @@ void ReaderIClass(uint8_t arg0) {
                //Send back to client, but don't bother if we already sent this
                if(memcmp(last_csn, card_data, 8) != 0)
                {
                //Send back to client, but don't bother if we already sent this
                if(memcmp(last_csn, card_data, 8) != 0)
                {

-
-                       if(!get_cc || (get_cc && read_status == 2))
+                       // 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))

                        {
                        {

-                               cmd_send(CMD_ACK,read_status,0,0,card_data,datasize);
+                               cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data));

                                if(abort_after_read) {
                                        LED_A_OFF();
                                        return;
                                if(abort_after_read) {
                                        LED_A_OFF();
                                        return;


@@ -1724,12 +1765,12 @@ void ReaderIClass(uint8_t arg0) {
                                //Save that we already sent this....
                                memcpy(last_csn, card_data, 8);
                        }
                                //Save that we already sent this....
                                memcpy(last_csn, card_data, 8);
                        }

-                       //If 'get_cc' was specified and we didn't get a CC, we'll just keep trying...
+

                }
                LED_B_OFF();
                }
                LED_B_OFF();

-    }
-    cmd_send(CMD_ACK,0,0,0,card_data, 0);
-    LED_A_OFF();
+       }
+       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) {


@@ -1780,7 +1821,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                //for now replay captured auth (as cc not updated)
                memcpy(check+5,MAC,4);
 
                //for now replay captured auth (as cc not updated)
                memcpy(check+5,MAC,4);
 

-               if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))
+               if(!sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))

                {
                        Dbprintf("Error: Authentication Fail!");
                        continue;
                {
                        Dbprintf("Error: Authentication Fail!");
                        continue;


@@ -1792,7 +1833,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                read[2] = crc >> 8;
                read[3] = crc & 0xff;
 
                read[2] = crc >> 8;
                read[3] = crc & 0xff;
 

-               if(sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))
+               if(!sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))

                {
                        Dbprintf("Dump config (block 1) failed");
                        continue;
                {
                        Dbprintf("Dump config (block 1) failed");
                        continue;


@@ -1819,7 +1860,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
                        read[2] = crc >> 8;
                        read[3] = crc & 0xff;
 
                        read[2] = crc >> 8;
                        read[3] = crc & 0xff;
 

-                       if(!sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))
+                       if(sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))

                        {
                                Dbprintf("     %02x: %02x %02x %02x %02x %02x %02x %02x %02x",
                                                 block, resp[0], resp[1], resp[2],
                        {
                                Dbprintf("     %02x: %02x %02x %02x %02x %02x %02x %02x %02x",
                                                 block, resp[0], resp[1], resp[2],


@@ -1870,130 +1911,129 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
        LED_A_OFF();
 }
 
        LED_A_OFF();
 }
 

-//2. Create Read method (cut-down from above) based off responses from 1. 
-//   Since we have the MAC could continue to use replay function.
-//3. Create Write method
-/*
-void IClass_iso14443A_write(uint8_t arg0, uint8_t blockNo, uint8_t *data, uint8_t *MAC) {
-       uint8_t act_all[]     = { 0x0a };
-       uint8_t identify[]    = { 0x0c };
-       uint8_t select[]      = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-       uint8_t readcheck_cc[]= { 0x88, 0x02 };
-       uint8_t check[]       = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-       uint8_t read[]        = { 0x0c, 0x00, 0x00, 0x00 };
-       uint8_t write[]       = { 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-       
-    uint16_t crc = 0;
-       
-       uint8_t* resp = (((uint8_t *)BigBuf) + 3560);
-
-       // Reset trace buffer
-    memset(trace, 0x44, RECV_CMD_OFFSET);
-       traceLen = 0;
+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);
+}

 
 

-       // Setup SSC
-       FpgaSetupSsc();
-       // Start from off (no field generated)
-       // Signal field is off with the appropriate LED
-       LED_D_OFF();
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       SpinDelay(200);
+void iClass_Authentication(uint8_t *MAC) {
+       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;
+       isOK = sendCmdGetResponseWithRetries(check, sizeof(check), resp, 4, 6);
+       cmd_send(CMD_ACK,isOK,0,0,0,0);
+}
+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, 10, 10);
+       memcpy(readdata, resp, sizeof(resp));
+
+       return isOK;
+}

 
 

-       SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+void iClass_ReadBlk(uint8_t blockno) {
+       uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK = false;
+       isOK = iClass_ReadBlock(blockno, readblockdata);
+       cmd_send(CMD_ACK, isOK, 0, 0, readblockdata, 8);
+}

 
 

-       // Now give it time to spin up.
-       // Signal field is on with the appropriate LED
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
-       SpinDelay(200);
+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;

 
 

-       LED_A_ON();
+       BigBuf_free();
+       uint8_t *dataout = BigBuf_malloc(255*8);
+       if (dataout == NULL){
+               Dbprintf("out of memory");
+               OnError(1);
+               return;
+       }
+       memset(dataout,0xFF,255*8);
+
+       for (;blkCnt < numblks; blkCnt++) {
+               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;
+                       }
+               }
+               memcpy(dataout+(blkCnt*8),readblockdata,8);
+       }
+       //return pointer to dump memory in arg3
+       cmd_send(CMD_ACK,isOK,blkCnt,BigBuf_max_traceLen(),0,0);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       LEDsoff();
+       BigBuf_free();
+}

 
 

-       for(int i=0;i<1;i++) {
-       
-               if(traceLen > TRACE_SIZE) {
-                       DbpString("Trace full");
-                       break;
+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 readblockdata[10];
+       //write[1] = blockNo;
+       memcpy(write+2, data, 12); // data + mac
+       uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};
+       bool isOK;
+       isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);
+       if (isOK) {
+               //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 (BUTTON_PRESS()) break;
-
-               // Send act_all
-               ReaderTransmitIClass(act_all, 1);
-               // Card present?
-               if(ReaderReceiveIClass(resp)) {
-                       ReaderTransmitIClass(identify, 1);
-                       if(ReaderReceiveIClass(resp) == 10) {
-                               // Select card          
-                               memcpy(&select[1],resp,8);
-                               ReaderTransmitIClass(select, sizeof(select));
-
-                               if(ReaderReceiveIClass(resp) == 10) {
-                                       Dbprintf("     Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
-                                       resp[0], resp[1], resp[2],
-                                       resp[3], resp[4], resp[5],
-                                       resp[6], resp[7]);
-                               }
-                               // Card selected
-                               Dbprintf("Readcheck on Sector 2");
-                               ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
-                               if(ReaderReceiveIClass(resp) == 8) {
-                                  Dbprintf("     CC: %02x %02x %02x %02x %02x %02x %02x %02x",
-                                       resp[0], resp[1], resp[2],
-                                       resp[3], resp[4], resp[5],
-                                       resp[6], resp[7]);
-                               }else return;
-                               Dbprintf("Authenticate");
-                               //for now replay captured auth (as cc not updated)
-                               memcpy(check+5,MAC,4);
-                               Dbprintf("     AA: %02x %02x %02x %02x",
-                                       check[5], check[6], check[7],check[8]);
-                               ReaderTransmitIClass(check, sizeof(check));
-                               if(ReaderReceiveIClass(resp) == 4) {
-                                  Dbprintf("     AR: %02x %02x %02x %02x",
-                                       resp[0], resp[1], resp[2],resp[3]);
-                               }else {
-                                 Dbprintf("Error: Authentication Fail!");
-                                 return;
-                               }
-                               Dbprintf("Write Block");
-                               
-                               //read configuration for max block number
-                               read_success=false;
-                               read[1]=1;
-                               uint8_t *blockno=&read[1];
-                               crc = iclass_crc16((char *)blockno,1);
-                               read[2] = crc >> 8;
-                               read[3] = crc & 0xff;
-                               while(!read_success){
-                                     ReaderTransmitIClass(read, sizeof(read));
-                                     if(ReaderReceiveIClass(resp) == 10) {
-                                        read_success=true;
-                                        mem=resp[5];
-                                        memory.k16= (mem & 0x80);
-                                        memory.book= (mem & 0x20);
-                                        memory.k2= (mem & 0x8);
-                                        memory.lockauth= (mem & 0x2);
-                                        memory.keyaccess= (mem & 0x1);
-
-                                     }
-                               }
-                               if (memory.k16){
-                                 cardsize=255;
-                               }else cardsize=32;
-                               //check card_size
-                               
-                               memcpy(write+1,blockNo,1);
-                               memcpy(write+2,data,8);
-                               memcpy(write+10,mac,4);
-                               while(!send_success){
-                                 ReaderTransmitIClass(write, sizeof(write));
-                                 if(ReaderReceiveIClass(resp) == 10) {
-                                   write_success=true;
-                               }
-                       }//
+       }
+       return isOK;
+}
+
+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 {
+               Dbprintf("Write block [%02x] failed",blockNo);          
+       }
+       cmd_send(CMD_ACK,isOK,0,0,0,0); 
+}
+
+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
+               if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
+                       Dbprintf("Write block [%02x] successful",i + startblock);
+                       written++;
+               } else {
+                       if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){
+                               Dbprintf("Write block [%02x] successful",i + startblock);
+                               written++;
+                       } else {
+                               Dbprintf("Write block [%02x] failed",i + startblock);
+                       }

                }
                }

-               WDT_HIT();

        }
        }

-       
-       LED_A_OFF();
-}*/
+       if (written == total_block)
+               Dbprintf("Clone complete");
+       else
+               Dbprintf("Clone incomplete");   
+
+       cmd_send(CMD_ACK,1,0,0,0,0);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       LEDsoff();
+}