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Applied Holiman's fixes for iclass.c and CSNs
[proxmark3-svn] / client / cmdhf14a.c
diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c
index 0f2b52227b43f93bf8d8268d249e58634d5bcd5d..d1d440eeb7bafa26188d9708fbbd0b8f6fcd1808 100644 (file)
--- a/client/cmdhf14a.c
+++ b/client/cmdhf14a.c
@@ -44,8 +44,8 @@ int CmdHF14AList(const char *Cmd)
                ShowWaitCycles = true;
        }
                
                ShowWaitCycles = true;
        }
                
-       uint8_t got[1920];
-       GetFromBigBuf(got,sizeof(got),0);
+       uint8_t trace[TRACE_BUFFER_SIZE];
+       GetFromBigBuf(trace,TRACE_BUFFER_SIZE,0);
        WaitForResponse(CMD_ACK,NULL);
 
        PrintAndLog("Recorded Activity");
        WaitForResponse(CMD_ACK,NULL);
 
        PrintAndLog("Recorded Activity");
@@ -56,122 +56,98 @@ int CmdHF14AList(const char *Cmd)
        PrintAndLog("     Start |       End | Src | Data");
        PrintAndLog("-----------|-----------|-----|--------");
 
        PrintAndLog("     Start |       End | Src | Data");
        PrintAndLog("-----------|-----------|-----|--------");
 
-       int i = 0;
-       uint32_t first_timestamp = 0;
+       uint16_t tracepos = 0;
+       uint16_t duration;
+       uint16_t data_len;
+       uint16_t parity_len;
+       bool isResponse;
        uint32_t timestamp;
        uint32_t timestamp;
-       uint32_t EndOfTransmissionTimestamp = 0;
+       uint32_t first_timestamp;
+       uint32_t EndOfTransmissionTimestamp;
        
        for (;;) {
        
        for (;;) {
-               if(i >= 1900) {
-                       break;
+       
+               if( tracepos >= TRACE_BUFFER_SIZE) break;
+       
+               timestamp = *((uint32_t *)(trace + tracepos));
+               if(tracepos == 0) {
+                       first_timestamp = timestamp;
                }
                }
-
-               bool isResponse;
-               timestamp = *((uint32_t *)(got+i));
-               if (timestamp & 0x80000000) {
-                 timestamp &= 0x7fffffff;
-                 isResponse = true;
+               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 {
                } else {
-                 isResponse = false;
+                       isResponse = false;
                }
 
                }
 
-               if(i==0) {
-                       first_timestamp = timestamp;
-               }
-               
-               int parityBits = *((uint32_t *)(got+i+4));
+               parity_len = (data_len-1)/8 + 1;
 
 
-               int len = got[i+8];
 
 
-               if (len > 100) {
-                       break;
-               }
-               if (i + len >= 1900) {
-                       break;
-               }
+               if (tracepos + data_len + parity_len >= TRACE_BUFFER_SIZE) { break; }
 
 
-               uint8_t *frame = (got+i+9);
+               uint8_t *frame = trace + tracepos;
+               tracepos += data_len;
+               uint8_t *parityBytes = trace + tracepos;
+               tracepos += parity_len;
 
                // Break and stick with current result if buffer was not completely full
 
                // Break and stick with current result if buffer was not completely full
-               if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break; 
+               if (timestamp == 0x44444444) break; 
 
                char line[1000] = "";
                int j;
 
                char line[1000] = "";
                int j;
-               if (len) {
-                       for (j = 0; j < len; j++) {
-                               int oddparity = 0x01;
-                               int k;
-
-                               for (k=0;k<8;k++) {
-                                       oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
-                               }
+               for (j = 0; j < data_len; j++) {
+                       int oddparity = 0x01;
+                       int k;
 
 
-                               //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]);
-                               }
+                       for (k=0;k<8;k++) {
+                               oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
                        }
                        }
-               } else {
-                       if (ShowWaitCycles) {
-                               uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
-                               sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
+
+                       uint8_t parityBits = parityBytes[j>>3];
+                       if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
+                               sprintf(line+(j*4), "%02x! ", frame[j]);
+                       } else {
+                               sprintf(line+(j*4), "%02x ", frame[j]);
                        }
                }
                        }
                }
-
-               char *crc;
-               crc = "";
-               if (len > 2) {
+                       
+               char crc[6] = ""; 
+               if (data_len > 2) {
                        uint8_t b1, b2;
                        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 = "";
-                               }
+                       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, "");
                        }
                        }
-               } else {
-                       crc = ""; // SHORT
-               }
-
-               i += (len + 9);
-
-               EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
                
                
-               if (!ShowWaitCycles) i += 9;
+               EndOfTransmissionTimestamp = timestamp + duration;
                
                PrintAndLog(" %9d | %9d | %s | %s %s",
                        (timestamp - first_timestamp),
                        (EndOfTransmissionTimestamp - first_timestamp),
                
                PrintAndLog(" %9d | %9d | %s | %s %s",
                        (timestamp - first_timestamp),
                        (EndOfTransmissionTimestamp - first_timestamp),
-                       (len?(isResponse ? "Tag" : "Rdr"):"   "),
-                       line, crc);
-
+                       (isResponse ? "Tag" : "Rdr"),
+                       line,
+                       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;
 }
@@ -400,6 +376,7 @@ int CmdHF14ASim(const char *Cmd)
                PrintAndLog("           2 = MIFARE Ultralight");
                PrintAndLog("           3 = MIFARE DESFIRE");
                PrintAndLog("           4 = ISO/IEC 14443-4");
                PrintAndLog("           2 = MIFARE Ultralight");
                PrintAndLog("           3 = MIFARE DESFIRE");
                PrintAndLog("           4 = ISO/IEC 14443-4");
+               PrintAndLog("           5 = MIFARE TNP3XXX");           
                PrintAndLog("");
                return 1;
        }
                PrintAndLog("");
                return 1;
        }
@@ -628,7 +605,7 @@ static void waitCmd(uint8_t iSelect)
     UsbCommand resp;
     char *hexout;
 
     UsbCommand resp;
     char *hexout;
 
-    if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
+    if (WaitForResponseTimeout(CMD_ACK,&resp,10000)) {
         recv = resp.d.asBytes;
         uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
         PrintAndLog("received %i octets",iLen);
         recv = resp.d.asBytes;
         uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
         PrintAndLog("received %i octets",iLen);
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