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[proxmark3-svn] / client / cmdhf14a.c
diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c
index 9309a1a9bfe1575aa2d2e1d39f02c812bfde964a..c997607652c9c8b632a6dffcf239efd5c23d31e1 100644 (file)
--- a/client/cmdhf14a.c
+++ b/client/cmdhf14a.c
@@ -16,7 +16,6 @@
 #include "util.h"
 #include "iso14443crc.h"
 #include "data.h"
 #include "util.h"
 #include "iso14443crc.h"
 #include "data.h"
-//#include "proxusb.h"
 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"
 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"
@@ -30,129 +29,145 @@ static void waitCmd(uint8_t iLen);
 
 int CmdHF14AList(const char *Cmd)
 {
 
 int CmdHF14AList(const char *Cmd)
 {
-  uint8_t got[1920];
-  GetFromBigBuf(got,sizeof(got),0);
-  WaitForResponse(CMD_ACK,NULL);
-
-  PrintAndLog("recorded activity:");
-  PrintAndLog(" ETU     :rssi: who bytes");
-  PrintAndLog("---------+----+----+-----------");
-
-  int i = 0;
-  int prev = -1;
-
-  for (;;) {
-    if(i >= 1900) {
-      break;
-    }
-
-    bool isResponse;
-    int timestamp = *((uint32_t *)(got+i));
-    if (timestamp & 0x80000000) {
-      timestamp &= 0x7fffffff;
-      isResponse = 1;
-    } else {
-      isResponse = 0;
-    }
-
-    int metric = 0;
-    int parityBits = *((uint32_t *)(got+i+4));
-    // 4 bytes of additional information...
-    // maximum of 32 additional parity bit information
-    //
-    // TODO:
-    // at each quarter bit period we can send power level (16 levels)
-    // or each half bit period in 256 levels.
-
+       bool ShowWaitCycles = false;
+       char param = param_getchar(Cmd, 0);
+       
+       if (param == 'h' || (param != 0 && param != 'f')) {
+               PrintAndLog("List data in trace buffer.");
+               PrintAndLog("Usage:  hf 14a list [f]");
+               PrintAndLog("f - show frame delay times as well");
+               PrintAndLog("sample: hf 14a list f");
+               return 0;
+       }       
 
 
-    int len = got[i+8];
+       if (param == 'f') {
+               ShowWaitCycles = true;
+       }
 
 
-    if (len > 100) {
-      break;
-    }
-    if (i + len >= 1900) {
-      break;
-    }
+// for the time being. Need better Bigbuf handling.    
+#define TRACE_SIZE 3000        
+
+       uint8_t trace[TRACE_SIZE];
+       GetFromBigBuf(trace, TRACE_SIZE, 0);
+       WaitForResponse(CMD_ACK, NULL);
+
+       PrintAndLog("Recorded Activity");
+       PrintAndLog("");
+       PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
+       PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
+       PrintAndLog("");
+       PrintAndLog("     Start |       End | Src | Data (! denotes parity error)                                   | CRC ");
+       PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------------");
+
+       uint16_t tracepos = 0;
+       uint16_t duration;
+       uint16_t data_len;
+       uint16_t parity_len;
+       bool isResponse;
+       uint32_t timestamp;
+       uint32_t first_timestamp;
+       uint32_t EndOfTransmissionTimestamp;
+       
+       for (;;) {
 
 
-    uint8_t *frame = (got+i+9);
+               if(tracepos >= TRACE_SIZE) {
+                       break;
+               }
 
 
-    // Break and stick with current result if buffer was not completely full
-    if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; }
+               timestamp = *((uint32_t *)(trace + tracepos));
+               if(tracepos == 0) {
+                       first_timestamp = timestamp;
+               }
 
 
-    char line[1000] = "";
-    int j;
-    for (j = 0; j < len; j++) {
-      int oddparity = 0x01;
-      int k;
+               // Break and stick with current result if buffer was not completely full
+               if (timestamp == 0x44444444) break; 
+
+               tracepos += 4;
+               duration = *((uint16_t *)(trace + tracepos));
+               tracepos += 2;
+               data_len = *((uint16_t *)(trace + tracepos));
+               tracepos += 2;
+               
+               if (data_len & 0x8000) {
+                 data_len &= 0x7fff;
+                 isResponse = true;
+               } else {
+                 isResponse = false;
+               }
 
 
-      for (k=0;k<8;k++) {
-        oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
-      }
+               parity_len = (data_len-1)/8 + 1;
 
 
-      //if((parityBits >> (len - j - 1)) & 0x01) {
-      if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
-        sprintf(line+(j*4), "%02x!  ", frame[j]);
-      }
-      else {
-        sprintf(line+(j*4), "%02x   ", frame[j]);
-      }
-    }
+               if (tracepos + data_len + parity_len >= TRACE_SIZE) {
+                       break;
+               }
+               
+               uint8_t *frame = trace + tracepos;
+               tracepos += data_len;
+               uint8_t *parityBytes = trace + tracepos;
+               tracepos += parity_len;
+
+               char line[16][110];
+               for (int j = 0; j < data_len; j++) {
+                       int oddparity = 0x01;
+                       int k;
+                       
+                       for (k=0;k<8;k++) {
+                               oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
+                       }
 
 
-    char *crc;
-    crc = "";
-    if (len > 2) {
-      uint8_t b1, b2;
-      for (j = 0; j < (len - 1); j++) {
-        // gives problems... search for the reason..
-        /*if(frame[j] == 0xAA) {
-          switch(frame[j+1]) {
-            case 0x01:
-              crc = "[1] Two drops close after each other";
-            break;
-            case 0x02:
-              crc = "[2] Potential SOC with a drop in second half of bitperiod";
-              break;
-            case 0x03:
-              crc = "[3] Segment Z after segment X is not possible";
-              break;
-            case 0x04:
-              crc = "[4] Parity bit of a fully received byte was wrong";
-              break;
-            default:
-              crc = "[?] Unknown error";
-              break;
-          }
-          break;
-        }*/
-      }
-
-      if (strlen(crc)==0) {
-        ComputeCrc14443(CRC_14443_A, frame, len-2, &b1, &b2);
-        if (b1 != frame[len-2] || b2 != frame[len-1]) {
-          crc = (isResponse & (len < 6)) ? "" : " !crc";
-        } else {
-          crc = "";
-        }
-      }
-    } else {
-      crc = ""; // SHORT
-    }
+                       uint8_t parityBits = parityBytes[j>>3];
+                       if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
+                               sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]);
+                       } else {
+                               sprintf(line[j/16]+((j%16)*4), "%02x  ", frame[j]);
+                       }
 
 
-    char metricString[100];
-    if (isResponse) {
-      sprintf(metricString, "%3d", metric);
-    } else {
-      strcpy(metricString, "   ");
-    }
+               }
 
 
-    PrintAndLog(" +%7d: %s: %s %s %s",
-      (prev < 0 ? 0 : (timestamp - prev)),
-      metricString,
-      (isResponse ? "TAG" : "   "), line, crc);
+               char crc[5] = ""; 
+               if (data_len > 2) {
+               uint8_t b1, b2;
+                       ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
+                       if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
+                               sprintf(crc, (isResponse & (data_len < 6)) ? "" : "!crc");
+                       } else {
+                               sprintf(crc, "");
+                       }
+               }
 
 
-    prev = timestamp;
-    i += (len + 9);
-  }
+               EndOfTransmissionTimestamp = timestamp + duration;
+               
+               int num_lines = (data_len - 1)/16 + 1;
+               for (int j = 0; j < num_lines; j++) {
+                       if (j == 0) {
+                               PrintAndLog(" %9d | %9d | %s | %-64s| %s",
+                                       (timestamp - first_timestamp),
+                                       (EndOfTransmissionTimestamp - first_timestamp),
+                                       (isResponse ? "Tag" : "Rdr"),
+                                       line[j], 
+                                       (j == num_lines-1)?crc:"");
+                       } else {
+                               PrintAndLog("           |           |     | %-64s| %s",
+                                       line[j], 
+                                       (j == num_lines-1)?crc:"");
+                       }
+               }                               
+
+               bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
+               
+               if (ShowWaitCycles && !isResponse && next_isResponse) {
+                       uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
+                       if (next_timestamp != 0x44444444) {
+                               PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
+                                       (EndOfTransmissionTimestamp - first_timestamp),
+                                       (next_timestamp - first_timestamp),
+                                       "   ",
+                                       (next_timestamp - EndOfTransmissionTimestamp));
+                       }
+               }
+                       
+       }
+       
        return 0;
 }
 
        return 0;
 }
 
@@ -163,33 +178,40 @@ void iso14a_set_timeout(uint32_t timeout) {
 
 int CmdHF14AReader(const char *Cmd)
 {
 
 int CmdHF14AReader(const char *Cmd)
 {
-       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
+       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
        SendCommand(&c);
 
        UsbCommand resp;
        SendCommand(&c);
 
        UsbCommand resp;
-  WaitForResponse(CMD_ACK,&resp);
+       WaitForResponse(CMD_ACK,&resp);
        
        
-       iso14a_card_select_t *card = (iso14a_card_select_t *)resp.d.asBytes;
+       iso14a_card_select_t card;
+       memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
 
 
-       if(resp.arg[0] == 0) {
+       uint64_t select_status = resp.arg[0];           // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
+       
+       if(select_status == 0) {
                PrintAndLog("iso14443a card select failed");
                PrintAndLog("iso14443a card select failed");
+               // disconnect
+               c.arg[0] = 0;
+               c.arg[1] = 0;
+               c.arg[2] = 0;
+               SendCommand(&c);
                return 0;
        }
 
                return 0;
        }
 
-       PrintAndLog("ATQA : %02x %02x", card->atqa[0], card->atqa[1]);
-       PrintAndLog(" UID : %s", sprint_hex(card->uid, card->uidlen));
-       PrintAndLog(" SAK : %02x [%d]", card->sak, resp.arg[0]);
+       PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
+       PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
+       PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
 
 
-       switch (card->sak) {
+       switch (card.sak) {
                case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
                case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
                case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
                case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
-
-               case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k"); break;
+               case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
                case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
                case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
-               case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k"); break;
-               case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k"); break;
-               case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k"); break;
-               case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k | JCOP 31/41"); break;
+               case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
+               case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break;
+               case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break;
+               case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break;
                case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
                case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
                case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
                case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
                case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
                case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
@@ -197,67 +219,107 @@ int CmdHF14AReader(const char *Cmd)
                case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
                default: ;
        }
                case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
                default: ;
        }
-       if(resp.arg[0] == 1) {
+
+       
+       // try to request ATS even if tag claims not to support it
+       if (select_status == 2) {
+               uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
+               c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
+               c.arg[1] = 2;
+               c.arg[2] = 0;
+               memcpy(c.d.asBytes, rats, 2);
+               SendCommand(&c);
+               WaitForResponse(CMD_ACK,&resp);
+               
+           memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
+               card.ats_len = resp.arg[0];                             // note: ats_len includes CRC Bytes
+       } 
+
+       // disconnect
+       c.arg[0] = 0;
+       c.arg[1] = 0;
+       c.arg[2] = 0;
+       SendCommand(&c);
+
+       
+       if(card.ats_len >= 3) {                 // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
                bool ta1 = 0, tb1 = 0, tc1 = 0;
                int pos;
 
                bool ta1 = 0, tb1 = 0, tc1 = 0;
                int pos;
 
-               PrintAndLog(" ATS : %s", sprint_hex(card->ats, card->ats_len));
-               if (card->ats_len > 0) {
-                       PrintAndLog("       -  TL : length is %d bytes", card->ats[0]);
+               if (select_status == 2) {
+                       PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
                }
                }
-               if (card->ats_len > 1) {
-                       ta1 = (card->ats[1] & 0x10) == 0x10;
-                       tb1 = (card->ats[1] & 0x20) == 0x20;
-                       tc1 = (card->ats[1] & 0x40) == 0x40;
+               PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
+               PrintAndLog("       -  TL : length is %d bytes", card.ats[0]);
+               if (card.ats[0] != card.ats_len - 2) {
+                       PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
+               }
+               
+               if (card.ats[0] > 1) {          // there is a format byte (T0)
+                       ta1 = (card.ats[1] & 0x10) == 0x10;
+                       tb1 = (card.ats[1] & 0x20) == 0x20;
+                       tc1 = (card.ats[1] & 0x40) == 0x40;
+                       int16_t fsci = card.ats[1] & 0x0f;
                        PrintAndLog("       -  T0 : TA1 is%s present, TB1 is%s present, "
                        PrintAndLog("       -  T0 : TA1 is%s present, TB1 is%s present, "
-                                       "TC1 is%s present, FSCI is %d",
+                                       "TC1 is%s present, FSCI is %d (FSC = %ld)",
                                (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
                                (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
-                               (card->ats[1] & 0x0f));
+                               fsci,
+                               fsci < 5 ? (fsci - 2) * 8 : 
+                                       fsci < 8 ? (fsci - 3) * 32 :
+                                       fsci == 8 ? 256 :
+                                       -1
+                               );
                }
                pos = 2;
                }
                pos = 2;
-               if (ta1 && card->ats_len > pos) {
+               if (ta1) {
                        char dr[16], ds[16];
                        dr[0] = ds[0] = '\0';
                        char dr[16], ds[16];
                        dr[0] = ds[0] = '\0';
-                       if (card->ats[pos] & 0x10) strcat(ds, "2, ");
-                       if (card->ats[pos] & 0x20) strcat(ds, "4, ");
-                       if (card->ats[pos] & 0x40) strcat(ds, "8, ");
-                       if (card->ats[pos] & 0x01) strcat(dr, "2, ");
-                       if (card->ats[pos] & 0x02) strcat(dr, "4, ");
-                       if (card->ats[pos] & 0x04) strcat(dr, "8, ");
+                       if (card.ats[pos] & 0x10) strcat(ds, "2, ");
+                       if (card.ats[pos] & 0x20) strcat(ds, "4, ");
+                       if (card.ats[pos] & 0x40) strcat(ds, "8, ");
+                       if (card.ats[pos] & 0x01) strcat(dr, "2, ");
+                       if (card.ats[pos] & 0x02) strcat(dr, "4, ");
+                       if (card.ats[pos] & 0x04) strcat(dr, "8, ");
                        if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
                        if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
                        PrintAndLog("       - TA1 : different divisors are%s supported, "
                                        "DR: [%s], DS: [%s]",
                        if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
                        if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
                        PrintAndLog("       - TA1 : different divisors are%s supported, "
                                        "DR: [%s], DS: [%s]",
-                                       (card->ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
+                                       (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
                        pos++;
                }
                        pos++;
                }
-               if (tb1 && card->ats_len > pos) {
-                       PrintAndLog("       - TB1 : SFGI = %d, FWI = %d",
-                                       (card->ats[pos] & 0x08),
-                                       (card->ats[pos] & 0x80) >> 4);
+               if (tb1) {
+                       uint32_t sfgi = card.ats[pos] & 0x0F;
+                       uint32_t fwi = card.ats[pos] >> 4;
+                       PrintAndLog("       - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
+                                       (sfgi),
+                                       sfgi ? "" : "(not needed) ",
+                                       sfgi ? (1 << 12) << sfgi : 0,
+                                       fwi,
+                                       (1 << 12) << fwi
+                                       );
                        pos++;
                }
                        pos++;
                }
-               if (tc1 && card->ats_len > pos) {
+               if (tc1) {
                        PrintAndLog("       - TC1 : NAD is%s supported, CID is%s supported",
                        PrintAndLog("       - TC1 : NAD is%s supported, CID is%s supported",
-                                       (card->ats[pos] & 0x01) ? "" : " NOT",
-                                       (card->ats[pos] & 0x02) ? "" : " NOT");
+                                       (card.ats[pos] & 0x01) ? "" : " NOT",
+                                       (card.ats[pos] & 0x02) ? "" : " NOT");
                        pos++;
                }
                        pos++;
                }
-               if (card->ats_len > pos) {
+               if (card.ats[0] > pos) {
                        char *tip = "";
                        char *tip = "";
-                       if (card->ats_len - pos > 7) {
-                               if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
+                       if (card.ats[0] - pos >= 7) {
+                               if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
                                        tip = "-> MIFARE Plus X 2K or 4K";
                                        tip = "-> MIFARE Plus X 2K or 4K";
-                               } else if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
+                               } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
                                        tip = "-> MIFARE Plus S 2K or 4K";
                                }
                        } 
                                        tip = "-> MIFARE Plus S 2K or 4K";
                                }
                        } 
-                       PrintAndLog("       -  HB : %s%s", sprint_hex(card->ats + pos, card->ats_len - pos - 2), tip);
-                       if (card->ats[pos] == 0xC1) {
+                       PrintAndLog("       -  HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
+                       if (card.ats[pos] == 0xC1) {
                                PrintAndLog("               c1 -> Mifare or (multiple) virtual cards of various type");
                                PrintAndLog("                  %02x -> Length is %d bytes",
                                PrintAndLog("               c1 -> Mifare or (multiple) virtual cards of various type");
                                PrintAndLog("                  %02x -> Length is %d bytes",
-                                               card->ats[pos + 1], card->ats[pos + 1]);
-                               switch (card->ats[pos + 2] & 0xf0) {
+                                               card.ats[pos + 1], card.ats[pos + 1]);
+                               switch (card.ats[pos + 2] & 0xf0) {
                                        case 0x10:
                                                PrintAndLog("                     1x -> MIFARE DESFire");
                                                break;
                                        case 0x10:
                                                PrintAndLog("                     1x -> MIFARE DESFire");
                                                break;
@@ -265,7 +327,7 @@ int CmdHF14AReader(const char *Cmd)
                                                PrintAndLog("                     2x -> MIFARE Plus");
                                                break;
                                }
                                                PrintAndLog("                     2x -> MIFARE Plus");
                                                break;
                                }
-                               switch (card->ats[pos + 2] & 0x0f) {
+                               switch (card.ats[pos + 2] & 0x0f) {
                                        case 0x00:
                                                PrintAndLog("                     x0 -> <1 kByte");
                                                break;
                                        case 0x00:
                                                PrintAndLog("                     x0 -> <1 kByte");
                                                break;
@@ -282,7 +344,7 @@ int CmdHF14AReader(const char *Cmd)
                                                PrintAndLog("                     x0 -> 8 kByte");
                                                break;
                                }
                                                PrintAndLog("                     x0 -> 8 kByte");
                                                break;
                                }
-                               switch (card->ats[pos + 3] & 0xf0) {
+                               switch (card.ats[pos + 3] & 0xf0) {
                                        case 0x00:
                                                PrintAndLog("                        0x -> Engineering sample");
                                                break;
                                        case 0x00:
                                                PrintAndLog("                        0x -> Engineering sample");
                                                break;
@@ -290,7 +352,7 @@ int CmdHF14AReader(const char *Cmd)
                                                PrintAndLog("                        2x -> Released");
                                                break;
                                }
                                                PrintAndLog("                        2x -> Released");
                                                break;
                                }
-                               switch (card->ats[pos + 3] & 0x0f) {
+                               switch (card.ats[pos + 3] & 0x0f) {
                                        case 0x00:
                                                PrintAndLog("                        x0 -> Generation 1");
                                                break;
                                        case 0x00:
                                                PrintAndLog("                        x0 -> Generation 1");
                                                break;
@@ -301,7 +363,7 @@ int CmdHF14AReader(const char *Cmd)
                                                PrintAndLog("                        x2 -> Generation 3");
                                                break;
                                }
                                                PrintAndLog("                        x2 -> Generation 3");
                                                break;
                                }
-                               switch (card->ats[pos + 4] & 0x0f) {
+                               switch (card.ats[pos + 4] & 0x0f) {
                                        case 0x00:
                                                PrintAndLog("                           x0 -> Only VCSL supported");
                                                break;
                                        case 0x00:
                                                PrintAndLog("                           x0 -> Only VCSL supported");
                                                break;
@@ -315,10 +377,10 @@ int CmdHF14AReader(const char *Cmd)
                        }
                }
        } else {
                        }
                }
        } else {
-               PrintAndLog("proprietary non iso14443a-4 card found, RATS not supported");
-  }
+               PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
+       }
 
 
-       return resp.arg[0];
+       return select_status;
 }
 
 // Collect ISO14443 Type A UIDs
 }
 
 // Collect ISO14443 Type A UIDs
@@ -337,23 +399,20 @@ int CmdHF14ACUIDs(const char *Cmd)
                UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
                SendCommand(&c);
     
                UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
                SendCommand(&c);
     
-    UsbCommand resp;
-    WaitForResponse(CMD_ACK,&resp);
+               UsbCommand resp;
+               WaitForResponse(CMD_ACK,&resp);
 
 
-               uint8_t *uid  = resp.d.asBytes;
-               iso14a_card_select_t *card = (iso14a_card_select_t *)(uid + 12);
+               iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
 
                // check if command failed
                if (resp.arg[0] == 0) {
                        PrintAndLog("Card select failed.");
                } else {
 
                // check if command failed
                if (resp.arg[0] == 0) {
                        PrintAndLog("Card select failed.");
                } else {
-                       // check if UID is 4 bytes
-                       if ((card->atqa[1] & 0xC0) == 0) {
-                               PrintAndLog("%02X%02X%02X%02X",
-                                           *uid, *(uid + 1), *(uid + 2), *(uid + 3));
-                       } else {
-                               PrintAndLog("UID longer than 4 bytes");
+                       char uid_string[20];
+                       for (uint16_t i = 0; i < card->uidlen; i++) {
+                               sprintf(&uid_string[2*i], "%02X", card->uid[i]);
                        }
                        }
+                       PrintAndLog("%s", uid_string);
                }
        }
        PrintAndLog("End: %u", time(NULL));
                }
        }
        PrintAndLog("End: %u", time(NULL));
@@ -596,9 +655,8 @@ static void waitCmd(uint8_t iSelect)
             return;
         hexout = (char *)malloc(iLen * 3 + 1);
         if (hexout != NULL) {
             return;
         hexout = (char *)malloc(iLen * 3 + 1);
         if (hexout != NULL) {
-            uint8_t first, second;
             for (int i = 0; i < iLen; i++) { // data in hex
             for (int i = 0; i < iLen; i++) { // data in hex
-                sprintf(&hexout[i * 3], "%02hX ", recv[i]);
+                sprintf(&hexout[i * 3], "%02X ", recv[i]);
             }
             PrintAndLog("%s", hexout);
             free(hexout);
             }
             PrintAndLog("%s", hexout);
             free(hexout);
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