X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a553f2674865fa544d04ca7b8194e30c008644ae..3ad48540d4d77f50cc62d16acb78f17019ef431d:/client/cmdhflegic.c?ds=sidebyside

diff --git a/client/cmdhflegic.c b/client/cmdhflegic.c
index 381ad6b2..8366b09b 100644
--- a/client/cmdhflegic.c
+++ b/client/cmdhflegic.c
@@ -10,7 +10,8 @@
 
 #include <stdio.h>
 #include <string.h>
-#include "proxusb.h"
+//#include "proxusb.h"
+#include "proxmark3.h"
 #include "data.h"
 #include "ui.h"
 #include "cmdparser.h"
@@ -24,6 +25,11 @@ static command_t CommandTable[] =
   {"help",        CmdHelp,        1, "This help"},
   {"decode",      CmdLegicDecode, 0, "Display deobfuscated and decoded LEGIC RF tag data (use after hf legic reader)"},
   {"reader",      CmdLegicRFRead, 0, "[offset [length]] -- read bytes from a LEGIC card"},
+  {"save",        CmdLegicSave,   0, "<filename> [<length>] -- Store samples"},
+  {"load",        CmdLegicLoad,   0, "<filename> -- Restore samples"},
+  {"sim",         CmdLegicRfSim,  0, "[phase drift [frame drift [req/resp drift]]] Start tag simulator (use after load or read)"},
+  {"write",       CmdLegicRfWrite,0, "<offset> <length> -- Write sample buffer (user after load or read)"},
+  {"fill",        CmdLegicRfFill, 0, "<offset> <length> <value> -- Fill/Write tag with constant value"},
   {NULL, NULL, 0, NULL}
 };
 
@@ -46,35 +52,20 @@ int CmdHelp(const char *Cmd)
  */
 int CmdLegicDecode(const char *Cmd)
 {
-  int h, i, j, k, n;
+  int i, j, k, n;
   int segment_len = 0;
   int segment_flag = 0;
   int stamp_len = 0;
   int crc = 0;
   int wrp = 0;
   int wrc = 0;
-  int data_buf[1032]; // receiver buffer
+  uint8_t data_buf[1024]; // receiver buffer
   char out_string[3076]; // just use big buffer - bad practice
   char token_type[4];
-  int delivered = 0;
-
-  h = 0;
   
   // copy data from proxmark into buffer
-  for (i = 0; i < 256; i += 12, h += 48) {
-    UsbCommand c = {CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K, {i, 0, 0}};
-    SendCommand(&c);
-    WaitForResponse(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K);
-    
-    for (j = 0; j < 48; j += 8) {
-      for (k = 0; k < 8; k++) {
-        data_buf[h+j+k] = sample_buf[j+k];
-      }
-      delivered += 8;
-      if (delivered >= 1024)
-        break;
-    }
-  }
+   GetFromBigBuf(data_buf,sizeof(data_buf),0);
+   WaitForResponse(CMD_ACK,NULL);
     
   // Output CDF System area (9 bytes) plus remaining header area (12 bytes)
   
@@ -225,3 +216,135 @@ int CmdLegicRFRead(const char *Cmd)
   SendCommand(&c);
   return 0;
 }
+
+int CmdLegicLoad(const char *Cmd)
+{
+    FILE *f = fopen(Cmd, "r");
+    if(!f) {
+        PrintAndLog("couldn't open '%s'", Cmd);
+        return -1;
+    }
+    char line[80]; int offset = 0; unsigned int data[8];
+    while(fgets(line, sizeof(line), f)) {
+        int res = sscanf(line, "%x %x %x %x %x %x %x %x", 
+            &data[0], &data[1], &data[2], &data[3],
+            &data[4], &data[5], &data[6], &data[7]);
+        if(res != 8) {
+          PrintAndLog("Error: could not read samples");
+          fclose(f);
+          return -1;
+        }
+        UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {offset, 0, 0}};
+        int j; for(j = 0; j < 8; j++) {
+            c.d.asBytes[j] = data[j];
+        }
+        SendCommand(&c);
+        WaitForResponse(CMD_ACK, NULL);
+        offset += 8;
+    }
+    fclose(f);
+    PrintAndLog("loaded %u samples", offset);
+    return 0;
+}
+
+int CmdLegicSave(const char *Cmd)
+{
+  int requested = 1024;
+  int offset = 0;
+  int delivered = 0;
+  char filename[1024];
+  uint8_t got[1024];
+  
+  sscanf(Cmd, " %s %i %i", filename, &requested, &offset);
+
+  /* If no length given save entire legic read buffer */
+  /* round up to nearest 8 bytes so the saved data can be used with legicload */
+  if (requested == 0) {
+    requested = 1024;
+  }
+  if (requested % 8 != 0) {
+    int remainder = requested % 8;
+    requested = requested + 8 - remainder;
+  }
+  
+  if (offset + requested > sizeof(got)) {
+    PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 1024");
+    return 0;
+  }
+  
+  FILE *f = fopen(filename, "w");
+  if(!f) {
+    PrintAndLog("couldn't open '%s'", Cmd+1);
+    return -1;
+  }
+
+  GetFromBigBuf(got,requested,offset);
+  WaitForResponse(CMD_ACK,NULL);
+
+  for (int j = 0; j < requested; j += 8) {
+    fprintf(f, "%02x %02x %02x %02x %02x %02x %02x %02x\n",
+      got[j+0],
+      got[j+1],
+      got[j+2],
+      got[j+3],
+      got[j+4],
+      got[j+5],
+      got[j+6],
+      got[j+7]
+    );
+    delivered += 8;
+    if (delivered >= requested)
+      break;
+  }
+
+  fclose(f);
+  PrintAndLog("saved %u samples", delivered);
+  return 0;
+}
+
+int CmdLegicRfSim(const char *Cmd)
+{
+   UsbCommand c={CMD_SIMULATE_TAG_LEGIC_RF};
+   c.arg[0] = 6;
+   c.arg[1] = 3;
+   c.arg[2] = 0;
+   sscanf(Cmd, " %"lli" %"lli" %"lli, &c.arg[0], &c.arg[1], &c.arg[2]);
+   SendCommand(&c);
+   return 0;
+}
+
+int CmdLegicRfWrite(const char *Cmd)
+{
+    UsbCommand c={CMD_WRITER_LEGIC_RF};
+    int res = sscanf(Cmd, " 0x%"llx" 0x%"llx, &c.arg[0], &c.arg[1]);
+	if(res != 2) {
+		PrintAndLog("Please specify the offset and length as two hex strings");
+        return -1;
+    }
+    SendCommand(&c);
+    return 0;
+}
+
+int CmdLegicRfFill(const char *Cmd)
+{
+    UsbCommand cmd ={CMD_WRITER_LEGIC_RF};
+    int res = sscanf(Cmd, " 0x%"llx" 0x%"llx" 0x%"llx, &cmd.arg[0], &cmd.arg[1], &cmd.arg[2]);
+    if(res != 3) {
+        PrintAndLog("Please specify the offset, length and value as two hex strings");
+        return -1;
+    }
+
+    int i;
+    UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {0, 0, 0}};
+    for(i = 0; i < 48; i++) {
+      c.d.asBytes[i] = cmd.arg[2];
+    }
+    for(i = 0; i < 22; i++) {
+      c.arg[0] = i*48;
+      SendCommand(&c);
+      WaitForResponse(CMD_ACK,NULL);
+    }
+    SendCommand(&cmd);
+    return 0;
+ }
+