From e370d60171254f9983ce1d770669b36f00fc03cc Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Thu, 26 Sep 2019 20:56:18 +0200
Subject: [PATCH] add 'lf pac clone' - use raw hex to clone to t55x7

---
 client/cmdlfpac.c | 72 +++++++++++++++++++++++++++++++++++++++++++----
 client/cmdlfpac.h |  6 ----
 2 files changed, 67 insertions(+), 11 deletions(-)

diff --git a/client/cmdlfpac.c b/client/cmdlfpac.c
index 175d56ad4..1977224e5 100644
--- a/client/cmdlfpac.c
+++ b/client/cmdlfpac.c
@@ -9,8 +9,34 @@
 //-----------------------------------------------------------------------------
 #include "cmdlfpac.h"
 
+#include <ctype.h>          //tolower
+
+#include "commonutil.h"     // ARRAYLEN
+#include "common.h"
+#include "cmdparser.h"    // command_t
+#include "comms.h"
+#include "ui.h"
+#include "cmddata.h"
+#include "cmdlf.h"
+#include "lfdemod.h"    // preamble test
+#include "protocols.h"  // t55xx defines
+#include "cmdlft55xx.h" // clone..
+
 static int CmdHelp(const char *Cmd);
 
+static int usage_lf_pac_clone(void) {
+    PrintAndLogEx(NORMAL, "clone a Stanley/PAC tag to a T55x7 tag.");
+    PrintAndLogEx(NORMAL, "");
+    PrintAndLogEx(NORMAL, "Usage: lf pac clone [h] [b <raw hex>]");
+    PrintAndLogEx(NORMAL, "Options:");
+    PrintAndLogEx(NORMAL, "  h               : this help");
+    PrintAndLogEx(NORMAL, "  b <raw hex>     : raw hex data. 12 bytes max");
+    PrintAndLogEx(NORMAL, "");
+    PrintAndLogEx(NORMAL, "Examples:");
+    PrintAndLogEx(NORMAL, "       lf pac clone b FF2049906D8511C593155B56D5B2649F ");
+    return PM3_SUCCESS;
+}
+
 //see NRZDemod for what args are accepted
 static int CmdPacDemod(const char *Cmd) {
 
@@ -46,8 +72,8 @@ static int CmdPacDemod(const char *Cmd) {
     // 11111111001000000 10 01001100 10 00001101 10 00001101 10 00001101 10 00001101 10 00001101 10 00001101 10 00001101 10 00001101 10 10001100 10 100000001
     // unknown checksum 9 bits at the end
 
-    PrintAndLogEx(NORMAL, "PAC/Stanley Tag Found -- Raw: %08X%08X%08X%08X", raw1, raw2, raw3, raw4);
-    PrintAndLogEx(NORMAL, "\nHow the Raw ID is translated by the reader is unknown");
+    PrintAndLogEx(SUCCESS, "PAC/Stanley Tag Found -- Raw: %08X%08X%08X%08X", raw1, raw2, raw3, raw4);
+    PrintAndLogEx(INFO, "How the Raw ID is translated by the reader is unknown. Share your trace file on forum");
     return PM3_SUCCESS;
 }
 
@@ -57,9 +83,45 @@ static int CmdPacRead(const char *Cmd) {
 }
 
 static int CmdPacClone(const char *Cmd) {
-    // possible to raw hex and clone
-    PrintAndLogEx(INFO, " To be implemented, feel free to contribute!");
-    return PM3_SUCCESS;
+    
+    uint32_t blocks[5];
+    bool errors = false;
+    uint8_t cmdp = 0;
+    int datalen = 0;
+
+    while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
+        switch (tolower(param_getchar(Cmd, cmdp))) {
+            case 'h':
+                return usage_lf_pac_clone();
+            case 'b': {
+                // skip first block,  4*4 = 16 bytes left
+                uint8_t rawhex[16] = {0}; 
+                int res = param_gethex_to_eol(Cmd, cmdp + 1, rawhex, sizeof(rawhex), &datalen);
+                if ( res != 0 )
+                    errors = true;
+                
+                for(uint8_t i = 1; i < ARRAYLEN(blocks); i++) {
+                    blocks[i] = bytes_to_num(rawhex + ( (i - 1) * 4 ), sizeof(uint32_t));
+                }
+                cmdp += 2;
+                break;
+            }
+            default:
+                PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+                errors = true;
+                break;
+        }
+    }
+
+    if (errors || cmdp == 0) return usage_lf_pac_clone();
+
+    //Pac - compat mode, NRZ, data rate 40, 3 data blocks
+    blocks[0] = T55x7_MODULATION_DIRECT | T55x7_BITRATE_RF_40 | 4 << T55x7_MAXBLOCK_SHIFT;
+
+    PrintAndLogEx(INFO, "Preparing to clone Securakey to T55x7 with raw hex");
+    print_blocks(blocks,  ARRAYLEN(blocks));
+
+    return clone_t55xx_tag(blocks, ARRAYLEN(blocks));
 }
 
 static int CmdPacSim(const char *Cmd) {
diff --git a/client/cmdlfpac.h b/client/cmdlfpac.h
index edb05b7a5..3c9c4fbda 100644
--- a/client/cmdlfpac.h
+++ b/client/cmdlfpac.h
@@ -10,12 +10,6 @@
 #define CMDLFPAC_H__
 
 #include "common.h"
-#include "cmdparser.h"    // command_t
-#include "comms.h"
-#include "ui.h"
-#include "cmddata.h"
-#include "cmdlf.h"
-#include "lfdemod.h"    // preamble test
 
 int CmdLFPac(const char *Cmd);