X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/28fdb04fd8d62e46c36f959b373d662f1a146448..30a5d3552930ab77d489484fcd47f296b69dfe34:/client/cmdlfem4x.c?ds=inline

diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c
index efbd4c48..125d8ab9 100644
--- a/client/cmdlfem4x.c
+++ b/client/cmdlfem4x.c
@@ -248,11 +248,20 @@ int CmdEM410xSim(const char *Cmd)
  * looped until an EM410x tag is detected */
 int CmdEM410xWatch(const char *Cmd)
 {
+  int read_h = (*Cmd == 'h');
   do
   {
-    CmdLFRead("");
-    CmdSamples("2000");
-  } while ( ! CmdEM410xRead(""));
+    CmdLFRead(read_h ? "h" : "");
+    // 2000 samples is OK for clock=64, but not clock=32.  Probably want
+		//   8000 for clock=16.  Don't want to go too high since old HID driver
+		//   is very slow
+		// TBD: Auto-grow sample size based on detected sample rate.  IE: If the
+		//   rate gets lower, then grow the number of samples
+
+    // Changed by martin, 4000 x 4 = 16000, 
+    // see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235
+		CmdSamples("16000");
+ } while ( ! CmdEM410xRead(""));
   return 0;
 }
 
@@ -402,36 +411,182 @@ int CmdEM4x50Read(const char *Cmd)
 
 int CmdEM410xWrite(const char *Cmd)
 {
-  uint64_t id = 0;
-  unsigned int card;
+  uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value
+  unsigned int card = 0xFF; // invalid card value
+	unsigned int clock = 0; // invalid clock value
+
+	sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);
+
+	// Check ID
+	if (id == 0xFFFFFFFFFFFFFFFF) {
+		PrintAndLog("Error! ID is required.\n");
+		return 0;
+	}
+	if (id >= 0x10000000000) {
+		PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n");
+		return 0;
+	}
+
+	// Check Card
+	if (card == 0xFF) {
+		PrintAndLog("Error! Card type required.\n");
+		return 0;
+	}
+	if (card < 0) {
+		PrintAndLog("Error! Bad card type selected.\n");
+		return 0;
+	}
+
+	// Check Clock
+	if (card == 1)
+	{
+		// Default: 64
+		if (clock == 0)
+			clock = 64;
+
+		// Allowed clock rates: 16, 32 and 64
+		if ((clock != 16) && (clock != 32) && (clock != 64)) {
+			PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32 and 64.\n", clock);
+			return 0;
+		}
+	}
+	else if (clock != 0)
+	{
+		PrintAndLog("Error! Clock rate is only supported on T55x7 tags.\n");
+		return 0;
+	}
+
+	if (card == 1) {
+		PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock);
+		// NOTE: We really should pass the clock in as a separate argument, but to
+		//   provide for backwards-compatibility for older firmware, and to avoid
+		//   having to add another argument to CMD_EM410X_WRITE_TAG, we just store
+		//   the clock rate in bits 8-15 of the card value
+		card = (card & 0xFF) | (((uint64_t)clock << 8) & 0xFF00);
+	}
+	else if (card == 0)
+		PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock);
+	else {
+		PrintAndLog("Error! Bad card type selected.\n");
+		return 0;
+	}
 
-  sscanf(Cmd, "%" PRIx64 " %d", &id, &card);
+  UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
+  SendCommand(&c);
 
-  if (id >= 0x10000000000) {
-    PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n");
-    return 0;
+  return 0;
+}
+
+int CmdReadWord(const char *Cmd)
+{
+  int Word = 16; //default to invalid word
+  UsbCommand c;
+  
+  sscanf(Cmd, "%d", &Word);
+  
+  if (Word > 15) {
+    PrintAndLog("Word must be between 0 and 15");
+    return 1;
   }
+  
+  PrintAndLog("Reading word %d", Word);
+  
+  c.cmd = CMD_EM4X_READ_WORD;
+  c.d.asBytes[0] = 0x0; //Normal mode
+  c.arg[0] = 0;
+  c.arg[1] = Word;
+  c.arg[2] = 0;
+  SendCommand(&c);
+  return 0;
+}
 
-  if (card > 1) {
-    PrintAndLog("Error! Bad card type selected.\n");
-    return 0;
+int CmdReadWordPWD(const char *Cmd)
+{
+  int Word = 16; //default to invalid word
+  int Password = 0xFFFFFFFF; //default to blank password
+  UsbCommand c;
+  
+  sscanf(Cmd, "%d %x", &Word, &Password);
+  
+  if (Word > 15) {
+    PrintAndLog("Word must be between 0 and 15");
+    return 1;
   }
+  
+  PrintAndLog("Reading word %d with password %08X", Word, Password);
+  
+  c.cmd = CMD_EM4X_READ_WORD;
+  c.d.asBytes[0] = 0x1; //Password mode
+  c.arg[0] = 0;
+  c.arg[1] = Word;
+  c.arg[2] = Password;
+  SendCommand(&c);
+  return 0;
+}
 
-  PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, card ? "T55x7":"T5555", id);
-  UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
+int CmdWriteWord(const char *Cmd)
+{
+  int Word = 16; //default to invalid block
+  int Data = 0xFFFFFFFF; //default to blank data
+  UsbCommand c;
+  
+  sscanf(Cmd, "%x %d", &Data, &Word);
+  
+  if (Word > 15) {
+    PrintAndLog("Word must be between 0 and 15");
+    return 1;
+  }
+  
+  PrintAndLog("Writting word %d with data %08X", Word, Data);
+  
+  c.cmd = CMD_EM4X_WRITE_WORD;
+  c.d.asBytes[0] = 0x0; //Normal mode
+  c.arg[0] = Data;
+  c.arg[1] = Word;
+  c.arg[2] = 0;
   SendCommand(&c);
+  return 0;
+}
 
+int CmdWriteWordPWD(const char *Cmd)
+{
+  int Word = 8; //default to invalid word
+  int Data = 0xFFFFFFFF; //default to blank data
+  int Password = 0xFFFFFFFF; //default to blank password
+  UsbCommand c;
+  
+  sscanf(Cmd, "%x %d %x", &Data, &Word, &Password);
+  
+  if (Word > 15) {
+    PrintAndLog("Word must be between 0 and 15");
+    return 1;
+  }
+  
+  PrintAndLog("Writting word %d with data %08X and password %08X", Word, Data, Password);
+  
+  c.cmd = CMD_EM4X_WRITE_WORD;
+  c.d.asBytes[0] = 0x1; //Password mode
+  c.arg[0] = Data;
+  c.arg[1] = Word;
+  c.arg[2] = Password;
+  SendCommand(&c);
   return 0;
 }
 
+
+
 static command_t CommandTable[] =
 {
-  {"help",        CmdHelp,        1, "This help"},
-  {"em410xread",  CmdEM410xRead,  1, "[clock rate] -- Extract ID from EM410x tag"},
-  {"em410xsim",   CmdEM410xSim,   0, "<UID> -- Simulate EM410x tag"},
-  {"em410xwatch", CmdEM410xWatch, 0, "Watches for EM410x tags"},
-  {"em410xwrite", CmdEM410xWrite, 1, "<UID> <'0' T5555> <'1' T55x7> -- Write EM410x UID to T5555(Q5) or T55x7 tag"},
-  {"em4x50read",  CmdEM4x50Read,  1, "Extract data from EM4x50 tag"},
+  {"help", CmdHelp, 1, "This help"},
+  {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag"},
+  {"em410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"},
+  {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"},
+  {"em410xwrite", CmdEM410xWrite, 1, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"},
+  {"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"},
+  {"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"},
+  {"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"},
+  {"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"},
+  {"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"},
   {NULL, NULL, 0, NULL}
 };