PCF7931: Print found single/consecutive block(s), fixes to block 1 check

[proxmark3-svn] / client / cmdlfhid.c

diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c
index 344662e1dd23f61609f09676c8b12e7aa675e26e..14340082f19624dcaf143ffc50650a9067e1ad5b 100644 (file)
--- a/client/cmdlfhid.c
+++ b/client/cmdlfhid.c
@@ -5,67 +5,287 @@
 // at your option, any later version. See the LICENSE.txt file for the text of
 // the license.
 //-----------------------------------------------------------------------------
 // at your option, any later version. See the LICENSE.txt file for the text of
 // the license.
 //-----------------------------------------------------------------------------

-// Low frequency HID commands
+// Low frequency HID commands (known)
+//
+// Useful resources:
+// RF interface, programming a T55x7 clone, 26-bit HID H10301 encoding:
+// http://www.proxmark.org/files/Documents/125%20kHz%20-%20HID/HID_format_example.pdf
+//
+// "Understanding Card Data Formats"
+// https://www.hidglobal.com/sites/default/files/hid-understanding_card_data_formats-wp-en.pdf
+//
+// "What Format Do You Need?"
+// https://www.hidglobal.com/sites/default/files/resource_files/hid-prox-br-en.pdf

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

+#include "cmdlfhid.h"
+

 #include <stdio.h>
 #include <stdio.h>

-#include "proxusb.h"
+#include <string.h>
+#include "comms.h"

 #include "ui.h"
 #include "graph.h"
 #include "cmdparser.h"
 #include "ui.h"
 #include "graph.h"
 #include "cmdparser.h"

-#include "cmdlfhid.h"
+#include "cmddata.h"  //for g_debugMode, demodbuff cmds
+#include "lfdemod.h" // for HIDdemodFSK
+#include "hidcardformats.h"
+#include "hidcardformatutils.h"
+#include "util.h" // for param_get8,32,64

 
 

-static int CmdHelp(const char *Cmd);

 
 

-int CmdHIDDemod(const char *Cmd)
-{
-  if (GraphTraceLen < 4800) {
-    PrintAndLog("too short; need at least 4800 samples");
-    return 0;
+/**
+ * Converts a hex string to component "hi2", "hi" and "lo" 32-bit integers, one nibble
+ * at a time.
+ *
+ * Returns the number of nibbles (4 bits) entered.
+ */
+int hid_hexstring_to_int96(/* out */ uint32_t* hi2,/* out */ uint32_t* hi, /* out */ uint32_t* lo, const char* str) {
+  // TODO: Replace this with param_gethex when it supports arbitrary length
+  // inputs.
+  int n = 0, i = 0;
+
+  while (sscanf(&str[i++], "%1x", &n ) == 1) {
+    *hi2 = (*hi2 << 4) | (*hi >> 28);
+    *hi = (*hi << 4) | (*lo >> 28);
+    *lo = (*lo << 4) | (n & 0xf);

   }
 
   }
 

-  GraphTraceLen = 4800;
-  for (int i = 0; i < GraphTraceLen; ++i) {
-    if (GraphBuffer[i] < 0) {
-      GraphBuffer[i] = 0;
+  return i - 1;
+}
+
+void usage_encode(){
+  PrintAndLog("Usage:  lf hid encode <format> [<field> <value (decimal)>] {...}");
+  PrintAndLog("   Fields:    c: Card number");
+  PrintAndLog("              f: Facility code");
+  PrintAndLog("              i: Issue Level");
+  PrintAndLog("              o: OEM code");
+  PrintAndLog("   example: lf hid encode H10301 f 123 c 4567");
+}
+void PrintProxTagId(hidproxmessage_t *packed){
+  if (packed->top != 0) {
+      PrintAndLog("HID Prox TAG ID: %x%08x%08x",
+        (uint32_t)packed->top, (uint32_t)packed->mid, (uint32_t)packed->bot);

     } else {
     } else {

-      GraphBuffer[i] = 1;
+      PrintAndLog("HID Prox TAG ID: %x%08x",
+        (uint32_t)packed->mid, (uint32_t)packed->bot); 
+    }
+}
+bool Encode(/* in */ const char *Cmd, /* out */ hidproxmessage_t *packed){
+  int formatIndex = -1;
+  char format[16];
+  memset(format, 0, sizeof(format));
+  if (!strcmp(Cmd, "help") || !strcmp(Cmd, "h") || !strcmp(Cmd, "list") || !strcmp(Cmd, "?")){
+    usage_encode();
+    return false;
+  } else {
+    param_getstr(Cmd, 0, format, sizeof(format));
+    formatIndex = HIDFindCardFormat(format);
+    if (formatIndex == -1) {
+      printf("Unknown format: %s\r\n", format);
+      return false;

     }
   }
     }
   }

-  RepaintGraphWindow();
-  return 0;
+  hidproxcard_t data;
+  memset(&data, 0, sizeof(hidproxcard_t));
+  uint8_t cmdp = 1;
+       while(param_getchar(Cmd, cmdp) != 0x00) {
+               switch(param_getchar(Cmd, cmdp)) {
+      case 'I':
+      case 'i':
+        data.IssueLevel = param_get32ex(Cmd, cmdp+1, 0, 10);
+        cmdp += 2;
+        break;
+      case 'F':
+      case 'f':
+        data.FacilityCode = param_get32ex(Cmd, cmdp+1, 0, 10);
+        cmdp += 2;
+        break;
+      case 'C':
+      case 'c':
+        data.CardNumber = param_get64ex(Cmd, cmdp+1, 0, 10);
+        cmdp += 2;
+                         break;
+      case 'o':
+      case 'O':
+        data.OEM = param_get32ex(Cmd, cmdp+1, 0, 10);
+        cmdp += 2;
+                       break;
+      default:
+        PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+        return false;
+               }
+       }
+       memset(packed, 0, sizeof(hidproxmessage_t));
+  if (!HIDPack(formatIndex, &data, packed))
+  {
+    PrintAndLog("The card data could not be encoded in the selected format.");
+    return false;
+  } else {
+    return true;
+  }
+
+}
+void Write(hidproxmessage_t *packed){
+  UsbCommand c;
+  c.d.asBytes[0] = (packed->top != 0 && ((packed->mid & 0xFFFFFFC0) != 0))
+    ? 1 : 0; // Writing long format?
+  c.cmd = CMD_HID_CLONE_TAG;
+  c.arg[0] = (packed->top & 0x000FFFFF);
+  c.arg[1] = packed->mid;
+  c.arg[2] = packed->bot;
+  SendCommand(&c);
+}
+
+
+//by marshmellow (based on existing demod + holiman's refactor)
+//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
+//print full HID Prox ID and some bit format details if found
+int CmdFSKdemodHID(const char *Cmd)
+{
+  //raw fsk demod no manchester decoding no start bit finding just get binary from wave
+  uint32_t hi2=0, hi=0, lo=0;
+
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
+  size_t BitLen = getFromGraphBuf(BitStream);
+  if (BitLen==0) return 0;
+  //get binary from fsk wave
+  int waveIdx = 0;
+  int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo, &waveIdx);
+  if (idx<0){
+    if (g_debugMode){
+      if (idx==-1){
+        PrintAndLog("DEBUG: Just Noise Detected");
+      } else if (idx == -2) {
+        PrintAndLog("DEBUG: Error demoding fsk");
+      } else if (idx == -3) {
+        PrintAndLog("DEBUG: Preamble not found");
+      } else if (idx == -4) {
+        PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen);
+      } else {
+        PrintAndLog("DEBUG: Error demoding fsk %d", idx);
+      }   
+    }
+    return 0;
+  }
+  if (hi2==0 && hi==0 && lo==0) {
+    if (g_debugMode) PrintAndLog("DEBUG: Error - no values found");
+    return 0;
+  }
+  
+  hidproxmessage_t packed = initialize_proxmessage_object(hi2, hi, lo);
+  PrintProxTagId(&packed);
+
+  bool ret = HIDTryUnpack(&packed, false);
+  if (!ret) {
+    PrintAndLog("Invalid or unsupported tag length.");
+  }
+  setDemodBuf(BitStream,BitLen,idx);
+  setClockGrid(50, waveIdx + (idx*50));
+  if (g_debugMode){ 
+    PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+    printDemodBuff();
+  }
+  return 1;

 }
 
 }
 

-int CmdHIDDemodFSK(const char *Cmd)
+int CmdHIDReadFSK(const char *Cmd)

 {
 {

+  int findone=0;
+  if(Cmd[0]=='1') findone=1;

   UsbCommand c={CMD_HID_DEMOD_FSK};
   UsbCommand c={CMD_HID_DEMOD_FSK};

+  c.arg[0]=findone;

   SendCommand(&c);
   return 0;
 }
 
 int CmdHIDSim(const char *Cmd)
 {
   SendCommand(&c);
   return 0;
 }
 
 int CmdHIDSim(const char *Cmd)
 {

-  unsigned int hi = 0, lo = 0;
-  int n = 0, i = 0;
-
-  while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
-    hi = (hi << 4) | (lo >> 28);
-    lo = (lo << 4) | (n & 0xf);
+  uint32_t hi2 = 0, hi = 0, lo = 0;
+  hid_hexstring_to_int96(&hi2, &hi, &lo, Cmd);
+  if (hi2 != 0) {
+    PrintAndLog("Emulating tag with ID %x%08x%08x", hi2, hi, lo);
+  } else {
+    PrintAndLog("Emulating tag with ID %x%08x", hi, lo);

   }
 
   }
 

-  PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
+  PrintAndLog("Press pm3-button to abort simulation");

 
 

-  UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
+  UsbCommand c = {CMD_HID_SIM_TAG, {hi2, hi, lo}};

   SendCommand(&c);
   return 0;
 }
 
   SendCommand(&c);
   return 0;
 }
 

+int CmdHIDClone(const char *Cmd)
+{
+  unsigned int top = 0, mid = 0, bot = 0;
+  hid_hexstring_to_int96(&top, &mid, &bot, Cmd);
+  hidproxmessage_t packed = initialize_proxmessage_object(top, mid, bot);
+  Write(&packed);
+  return 0;
+}
+
+int CmdHIDDecode(const char *Cmd){
+  if (strlen(Cmd)<3) {
+    PrintAndLog("Usage:  lf hid decode <id> {p}");
+    PrintAndLog("        (optional) p: Ignore invalid parity");
+    PrintAndLog("        sample: lf hid decode 2006f623ae");
+    return 0;
+  }
+
+  uint32_t top = 0, mid = 0, bot = 0;
+  bool ignoreParity = false;
+  hid_hexstring_to_int96(&top, &mid, &bot, Cmd);
+  hidproxmessage_t packed = initialize_proxmessage_object(top, mid, bot);
+
+  char opt = param_getchar(Cmd, 1);
+  if (opt == 'p') ignoreParity = true;
+
+  HIDTryUnpack(&packed, ignoreParity);
+  return 0;
+}
+int CmdHIDEncode(const char *Cmd) {
+  if (strlen(Cmd) == 0) {
+    usage_encode();
+    return 0;
+  }
+
+  hidproxmessage_t packed;
+  memset(&packed, 0, sizeof(hidproxmessage_t));
+  if (Encode(Cmd, &packed))
+    PrintProxTagId(&packed);
+  return 0;
+}
+
+int CmdHIDWrite(const char *Cmd) {
+  if (strlen(Cmd) == 0) {
+    usage_encode();
+    return 0;
+  }
+  hidproxmessage_t packed;
+  memset(&packed, 0, sizeof(hidproxmessage_t));
+  if (Encode(Cmd, &packed)){
+    PrintProxTagId(&packed);
+    Write(&packed);
+  }
+  return 0;
+}
+
+int CmdHIDFormats(){
+  HIDListFormats();
+  return 0;
+}
+static int CmdHelp(const char *Cmd); // define this now so the below won't error out.

 static command_t CommandTable[] = 
 {
   {"help",      CmdHelp,        1, "This help"},
 static command_t CommandTable[] = 
 {
   {"help",      CmdHelp,        1, "This help"},

-  {"demod",     CmdHIDDemod,    1, "Demodulate HID Prox Card II (not optimal)"},
-  {"fskdemod",  CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
+  {"demod",     CmdFSKdemodHID, 1, "Demodulate HID Prox from GraphBuffer"},
+  {"read",      CmdHIDReadFSK,  0, "['1'] Realtime HID FSK Read from antenna (option '1' for one tag only)"},

   {"sim",       CmdHIDSim,      0, "<ID> -- HID tag simulator"},
   {"sim",       CmdHIDSim,      0, "<ID> -- HID tag simulator"},

+  {"clone",     CmdHIDClone,    0, "<ID> -- Clone HID to T55x7 (tag must be in antenna)"},
+  {"decode",    CmdHIDDecode,   1, "<ID> -- Try to decode an HID tag and show its contents"},
+  {"encode",    CmdHIDEncode,   1, "<format> <fields> -- Encode an HID ID with the specified format and fields"},
+  {"formats",   CmdHIDFormats,  1, "List supported card formats"},
+  {"write",     CmdHIDWrite,    0, "<format> <fields> -- Encode and write to a T55x7 tag (tag must be in antenna)"},

   {NULL, NULL, 0, NULL}
 };
 
   {NULL, NULL, 0, NULL}
 };