]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/iso14443a.c
updated code to follow same blinking patterns with leds during flashing/holding button
[proxmark3-svn] / armsrc / iso14443a.c
index d2a54d8ce360b46b560fa879508efd29cdb324d8..7c1db14ba842a3067f808fd09a0fffa71898d455 100644 (file)
@@ -14,6 +14,7 @@
 #include "apps.h"
 #include "util.h"
 #include "string.h"
+#include "cmd.h"
 
 #include "iso14443crc.h"
 #include "iso14443a.h"
@@ -64,16 +65,16 @@ const uint8_t OddByteParity[256] = {
 };
 
 
-void iso14a_set_trigger(int enable) {
+void iso14a_set_trigger(bool enable) {
        trigger = enable;
 }
 
-void iso14a_clear_trace(void) {
-    memset(trace, 0x44, TRACE_SIZE);
+void iso14a_clear_trace() {
+  memset(trace, 0x44, TRACE_SIZE);
        traceLen = 0;
 }
 
-void iso14a_set_tracing(int enable) {
+void iso14a_set_tracing(bool enable) {
        tracing = enable;
 }
 
@@ -1635,30 +1636,36 @@ int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr)
 /* performs iso14443a anticolision procedure
  * fills the uid pointer unless NULL
  * fills resp_data unless NULL */
-int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, uint32_t * cuid_ptr) {
+int iso14443a_select_card(byte_t* uid_ptr, iso14a_card_select_t* p_hi14a_card, uint32_t* cuid_ptr) {
        uint8_t wupa[]       = { 0x52 };  // 0x26 - REQA  0x52 - WAKE-UP
        uint8_t sel_all[]    = { 0x93,0x20 };
        uint8_t sel_uid[]    = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
        uint8_t rats[]       = { 0xE0,0x80,0x00,0x00 }; // FSD=256, FSDI=8, CID=0
-
-       uint8_t* resp = (((uint8_t *)BigBuf) + 3560);   // was 3560 - tied to other size changes
+       uint8_t* resp = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);     // was 3560 - tied to other size changes
+  byte_t uid_resp[4];
+  size_t uid_resp_len;
 
        uint8_t sak = 0x04; // cascade uid
        int cascade_level = 0;
-
        int len;
-       
-       // clear uid
-       memset(uid_ptr, 0, 8);
-
+        
        // Broadcast for a card, WUPA (0x52) will force response from all cards in the field
        ReaderTransmitShort(wupa);
        // Receive the ATQA
        if(!ReaderReceive(resp)) return 0;
-
-       if(resp_data)
-               memcpy(resp_data->atqa, resp, 2);
+//  Dbprintf("atqa: %02x %02x",resp[0],resp[1]);
+  
+       if(p_hi14a_card) {
+               memcpy(p_hi14a_card->atqa, resp, 2);
+    p_hi14a_card->uidlen = 0;
+    memset(p_hi14a_card->uid,0,10);
+  }
        
+  // clear uid
+  if (uid_ptr) {
+    memset(uid_ptr,0,10);
+  }
+
        // OK we will select at least at cascade 1, lets see if first byte of UID was 0x88 in
        // which case we need to make a cascade 2 request and select - this is a long UID
        // While the UID is not complete, the 3nd bit (from the right) is set in the SAK.
@@ -1670,10 +1677,16 @@ int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, u
                // SELECT_ALL
                ReaderTransmit(sel_all,sizeof(sel_all));
                if (!ReaderReceive(resp)) return 0;
-               if(uid_ptr) memcpy(uid_ptr + cascade_level*4, resp, 4);
-               
+    
+    // First backup the current uid 
+    memcpy(uid_resp,resp,4);
+    uid_resp_len = 4;
+    //    Dbprintf("uid: %02x %02x %02x %02x",uid_resp[0],uid_resp[1],uid_resp[2],uid_resp[3]);
+    
                // calculate crypto UID
-               if(cuid_ptr) *cuid_ptr = bytes_to_num(resp, 4);
+               if(cuid_ptr) {
+      *cuid_ptr = bytes_to_num(uid_resp, 4);
+    }
 
                // Construct SELECT UID command
                memcpy(sel_uid+2,resp,5);
@@ -1683,45 +1696,58 @@ int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, u
                // Receive the SAK
                if (!ReaderReceive(resp)) return 0;
                sak = resp[0];
+
+    // Test if more parts of the uid are comming
+    if ((sak & 0x04) && uid_resp[0] == 0x88) {
+      // Remove first byte, 0x88 is not an UID byte, it CT, see page 3 of:
+      // http://www.nxp.com/documents/application_note/AN10927.pdf
+      memcpy(uid_ptr, uid_ptr + 1, 3);
+      uid_resp_len = 3;
+    }
+    
+    if(uid_ptr) {
+      memcpy(uid_ptr + (cascade_level*3), uid_resp, uid_resp_len);
+    }
+    
+    if(p_hi14a_card) {
+      memcpy(p_hi14a_card->uid + (cascade_level*3), uid_resp, uid_resp_len);
+      p_hi14a_card->uidlen += uid_resp_len;
+    }
        }
-       if(resp_data) {
-               resp_data->sak = sak;
-               resp_data->ats_len = 0;
-       }
-       //--  this byte not UID, it CT.  http://www.nxp.com/documents/application_note/AN10927.pdf  page 3
-       if (uid_ptr[0] == 0x88) {  
-               memcpy(uid_ptr, uid_ptr + 1, 7);
-               uid_ptr[7] = 0;
+
+       if(p_hi14a_card) {
+               p_hi14a_card->sak = sak;
+               p_hi14a_card->ats_len = 0;
        }
 
-       if( (sak & 0x20) == 0)
+       if( (sak & 0x20) == 0) {
                return 2; // non iso14443a compliant tag
+  }
 
        // Request for answer to select
-       if(resp_data) {  // JCOP cards - if reader sent RATS then there is no MIFARE session at all!!!
+       if(p_hi14a_card) {  // JCOP cards - if reader sent RATS then there is no MIFARE session at all!!!
                AppendCrc14443a(rats, 2);
                ReaderTransmit(rats, sizeof(rats));
                
                if (!(len = ReaderReceive(resp))) return 0;
                
-               memcpy(resp_data->ats, resp, sizeof(resp_data->ats));
-               resp_data->ats_len = len;
+               memcpy(p_hi14a_card->ats, resp, sizeof(p_hi14a_card->ats));
+               p_hi14a_card->ats_len = len;
        }
        
        // reset the PCB block number
        iso14_pcb_blocknum = 0;
-       
        return 1;
 }
 
 void iso14443a_setup() {
-       // Setup SSC
-       FpgaSetupSsc();
+  // Set up the synchronous serial port
+  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);
+       SpinDelay(50);
 
        SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
 
@@ -1729,7 +1755,7 @@ void iso14443a_setup() {
        // Signal field is on with the appropriate LED
        LED_D_ON();
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
-       SpinDelay(200);
+       SpinDelay(50);
 
        iso14a_timeout = 2048; //default
 }
@@ -1765,18 +1791,26 @@ int iso14_apdu(uint8_t * cmd, size_t cmd_len, void * data) {
 // Read an ISO 14443a tag. Send out commands and store answers.
 //
 //-----------------------------------------------------------------------------
-void ReaderIso14443a(UsbCommand * c, UsbCommand * ack)
+void ReaderIso14443a(UsbCommand * c)
 {
        iso14a_command_t param = c->arg[0];
        uint8_t * cmd = c->d.asBytes;
        size_t len = c->arg[1];
+  uint32_t arg0 = 0;
+  byte_t buf[USB_CMD_DATA_SIZE];
+  
+  iso14a_clear_trace();
+  iso14a_set_tracing(true);
 
-       if(param & ISO14A_REQUEST_TRIGGER) iso14a_set_trigger(1);
+       if(param & ISO14A_REQUEST_TRIGGER) {
+    iso14a_set_trigger(1);
+  }
 
        if(param & ISO14A_CONNECT) {
                iso14443a_setup();
-               ack->arg[0] = iso14443a_select_card(ack->d.asBytes, (iso14a_card_select_t *) (ack->d.asBytes+12), NULL);
-               UsbSendPacket((void *)ack, sizeof(UsbCommand));
+               arg0 = iso14443a_select_card(NULL,(iso14a_card_select_t*)buf,NULL);
+               cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(iso14a_card_select_t));
+//    UsbSendPacket((void *)ack, sizeof(UsbCommand));
        }
 
        if(param & ISO14A_SET_TIMEOUT) {
@@ -1788,8 +1822,9 @@ void ReaderIso14443a(UsbCommand * c, UsbCommand * ack)
        }
 
        if(param & ISO14A_APDU) {
-               ack->arg[0] = iso14_apdu(cmd, len, ack->d.asBytes);
-               UsbSendPacket((void *)ack, sizeof(UsbCommand));
+               arg0 = iso14_apdu(cmd, len, buf);
+               cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
+//             UsbSendPacket((void *)ack, sizeof(UsbCommand));
        }
 
        if(param & ISO14A_RAW) {
@@ -1798,14 +1833,18 @@ void ReaderIso14443a(UsbCommand * c, UsbCommand * ack)
                        len += 2;
                }
                ReaderTransmit(cmd,len);
-               ack->arg[0] = ReaderReceive(ack->d.asBytes);
-               UsbSendPacket((void *)ack, sizeof(UsbCommand));
+               arg0 = ReaderReceive(buf);
+//             UsbSendPacket((void *)ack, sizeof(UsbCommand));
+    cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
        }
 
-       if(param & ISO14A_REQUEST_TRIGGER) iso14a_set_trigger(0);
+       if(param & ISO14A_REQUEST_TRIGGER) {
+    iso14a_set_trigger(0);
+  }
 
-       if(param & ISO14A_NO_DISCONNECT)
+       if(param & ISO14A_NO_DISCONNECT) {
                return;
+  }
 
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        LEDsoff();
@@ -1821,7 +1860,7 @@ void ReaderMifare(uint32_t parameter)
        uint8_t mf_auth[]    = { 0x60,0x00,0xf5,0x7b };
        uint8_t mf_nr_ar[]   = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
 
-       uint8_t* receivedAnswer = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+       uint8_t* receivedAnswer = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);   // was 3560 - tied to other size changes
        traceLen = 0;
        tracing = false;
 
@@ -1852,7 +1891,7 @@ void ReaderMifare(uint32_t parameter)
        {
                LED_C_OFF();
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-               SpinDelay(10);
+               SpinDelay(50);
                FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
                LED_C_ON();
                SpinDelay(2);
@@ -1918,14 +1957,16 @@ void ReaderMifare(uint32_t parameter)
        LogTrace(par_list, 8, 0, GetParity(par_list, 8), TRUE);
        LogTrace(ks_list, 8, 0, GetParity(ks_list, 8), TRUE);
 
-       UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
-       memcpy(ack.d.asBytes + 0,  uid, 4);
-       memcpy(ack.d.asBytes + 4,  nt, 4);
-       memcpy(ack.d.asBytes + 8,  par_list, 8);
-       memcpy(ack.d.asBytes + 16, ks_list, 8);
+  byte_t buf[48];
+//     UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
+       memcpy(buf + 0,  uid, 4);
+       memcpy(buf + 4,  nt, 4);
+       memcpy(buf + 8,  par_list, 8);
+       memcpy(buf + 16, ks_list, 8);
                
        LED_B_ON();
-       UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+  cmd_send(CMD_ACK,isOK,0,0,buf,48);
+//     UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
        LED_B_OFF();    
 
        // Thats it...
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