Fixed error pointed out here: https://code.google.com/p/proxmark3/issues/detail?id...

[proxmark3-svn] / client / cmdlfem4x.c

diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c
index 9b40d7c05f569b4b254bc94121d8526c42dd75a0..125d8ab926873f981e787360e61362b159b091f3 100644 (file)
--- a/client/cmdlfem4x.c
+++ b/client/cmdlfem4x.c
@@ -1,5 +1,18 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Low frequency EM4x commands
+//-----------------------------------------------------------------------------
+

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

-#include "proxusb.h"
+#include <string.h>
+#include <inttypes.h>
+//#include "proxusb.h"
+#include "proxmark3.h"

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


@@ -23,7 +36,7 @@ int CmdEM410xRead(const char *Cmd)
   int parity[4];
   char id[11];
   int retested = 0;
   int parity[4];
   char id[11];
   int retested = 0;

-  int BitStream[MAX_GRAPH_TRACE_LEN];
+  uint8_t BitStream[MAX_GRAPH_TRACE_LEN];

   high = low = 0;
 
   /* Detect high and lows and clock */
   high = low = 0;
 
   /* Detect high and lows and clock */


@@ -235,11 +248,20 @@ int CmdEM410xSim(const char *Cmd)
  * looped until an EM410x tag is detected */
 int CmdEM410xWatch(const char *Cmd)
 {
  * looped until an EM410x tag is detected */
 int CmdEM410xWatch(const char *Cmd)
 {

+  int read_h = (*Cmd == 'h');

   do
   {
   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;
 }
 
   return 0;
 }
 


@@ -264,13 +286,13 @@ int CmdEM410xWatch(const char *Cmd)
  */
 int CmdEM4x50Read(const char *Cmd)
 {
  */
 int CmdEM4x50Read(const char *Cmd)
 {

-  int i, j, startblock, clock, skip, block, start, end, low, high;
+  int i, j, startblock, skip, block, start, end, low, high;

   bool complete= false;
   int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
   char tmp[6];
 
   high= low= 0;
   bool complete= false;
   int tmpbuff[MAX_GRAPH_TRACE_LEN / 64];
   char tmp[6];
 
   high= low= 0;

-  clock= 64;
+  memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);

 
   /* first get high and low values */
   for (i = 0; i < GraphTraceLen; i++)
 
   /* first get high and low values */
   for (i = 0; i < GraphTraceLen; i++)


@@ -387,13 +409,184 @@ int CmdEM4x50Read(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

-static command_t CommandTable[] = 
+int CmdEM410xWrite(const char *Cmd)
+{
+  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;
+       }
+
+  UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}};
+  SendCommand(&c);
+
+  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;
+}
+
+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;
+}
+
+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"},
-  {"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}
 };
 
   {NULL, NULL, 0, NULL}
 };