]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhf14a.c
Merge pull request #7 from PenturaLabs/master
[proxmark3-svn] / client / cmdhf14a.c
index 2c5fd1c02a2624871944383e95b8b0345c5fff16..d16d71ff09ae34a09a35511b9a0a6b22f639d7e7 100644 (file)
@@ -16,7 +16,6 @@
 #include "util.h"
 #include "iso14443crc.h"
 #include "data.h"
-//#include "proxusb.h"
 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"
@@ -30,129 +29,150 @@ static void waitCmd(uint8_t iLen);
 
 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;
+       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;
+       }       
 
-  for (;;) {
-    if(i >= 1900) {
-      break;
-    }
+       if (param == 'f') {
+               ShowWaitCycles = true;
+       }
+               
+       uint8_t got[1920];
+       GetFromBigBuf(got,sizeof(got),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");
+       PrintAndLog("-----------|-----------|-----|--------");
+
+       int i = 0;
+       uint32_t first_timestamp = 0;
+       uint32_t timestamp;
+       uint32_t EndOfTransmissionTimestamp = 0;
+       
+       for (;;) {
+               if(i >= 1900) {
+                       break;
+               }
 
-    bool isResponse;
-    int timestamp = *((uint32_t *)(got+i));
-    if (timestamp & 0x80000000) {
-      timestamp &= 0x7fffffff;
-      isResponse = 1;
-    } else {
-      isResponse = 0;
-    }
+               bool isResponse;
+               timestamp = *((uint32_t *)(got+i));
+               if (timestamp & 0x80000000) {
+                 timestamp &= 0x7fffffff;
+                 isResponse = true;
+               } else {
+                 isResponse = false;
+               }
 
-    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.
+               if(i==0) {
+                       first_timestamp = timestamp;
+               }
+               
+               int parityBits = *((uint32_t *)(got+i+4));
 
+               int len = got[i+8];
 
-    int len = got[i+8];
+               if (len > 100) {
+                       break;
+               }
+               if (i + len >= 1900) {
+                       break;
+               }
 
-    if (len > 100) {
-      break;
-    }
-    if (i + len >= 1900) {
-      break;
-    }
+               uint8_t *frame = (got+i+9);
 
-    uint8_t *frame = (got+i+9);
+               // 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; 
 
-    // Break and stick with current result if buffer was not completely full
-    if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; }
+               char line[1000] = "";
+               int j;
+               if (len) {
+                       for (j = 0; j < len; j++) {
+                               int oddparity = 0x01;
+                               int k;
 
-    char line[1000] = "";
-    int j;
-    for (j = 0; j < len; j++) {
-      int oddparity = 0x01;
-      int k;
+                               for (k=0;k<8;k++) {
+                                       oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
+                               }
 
-      for (k=0;k<8;k++) {
-        oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
-      }
+                               //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]);
+                               }
+                       }
+               } else {
+                       if (ShowWaitCycles) {
+                               uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
+                               sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
+                       }
+               }
 
-      //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]);
-      }
-    }
+               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;
+                               }*/
+                       }
 
-    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 = "";
+                       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
                }
-    }
-    } else {
-      crc = ""; // SHORT
-    }
 
-    char metricString[100];
-    if (isResponse) {
-      sprintf(metricString, "%3d", metric);
-    } else {
-      strcpy(metricString, "   ");
-    }
+               i += (len + 9);
 
-    PrintAndLog(" +%7d: %s: %s %s %s",
-      (prev < 0 ? 0 : (timestamp - prev)),
-      metricString,
-      (isResponse ? "TAG " : "    "), line, crc);
+               EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
+               
+               if (!ShowWaitCycles) i += 9;
+               
+               PrintAndLog(" %9d | %9d | %s | %s %s",
+                       (timestamp - first_timestamp),
+                       (EndOfTransmissionTimestamp - first_timestamp),
+                       (len?(isResponse ? "Tag" : "Rdr"):"   "),
+                       line, crc);
 
-    prev = timestamp;
-    i += (len + 9);
-  }
+       }
        return 0;
 }
 
@@ -167,7 +187,7 @@ int CmdHF14AReader(const char *Cmd)
        SendCommand(&c);
 
        UsbCommand resp;
-  WaitForResponse(CMD_ACK,&resp);
+       WaitForResponse(CMD_ACK,&resp);
        
        iso14a_card_select_t *card = (iso14a_card_select_t *)resp.d.asBytes;
 
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