From c1c093af629c59ca2e541b888737c678fc59aed4 Mon Sep 17 00:00:00 2001
From: Philippe Teuwen <phil@teuwen.org>
Date: Sat, 30 Apr 2022 00:04:49 +0200
Subject: [PATCH] Fixed support to clone Pyramic, Paradox and Awid on EM4x05

---
 CHANGELOG.md              | 1 +
 client/src/cmdlfawid.c    | 9 +++++++++
 client/src/cmdlfdestron.c | 1 +
 client/src/cmdlfhid.c     | 1 +
 client/src/cmdlfparadox.c | 5 +++++
 client/src/cmdlfpyramid.c | 5 +++++
 6 files changed, 22 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c8831a09..fb2ecb97d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+ - Fixed support to clone Pyramic, Paradox and Awid on EM4x05 (@doegox)
  - Added support to clone Viking and EM410x on EM4x05 (@doegox)
  - Fixed `lf config --reset` - averaging is set to 1 rather than 0 (@wh201906)
  - Added standalone mode for sniffing 14b (@jacopo-j)
diff --git a/client/src/cmdlfawid.c b/client/src/cmdlfawid.c
index 25c644800..6ccfa2cdf 100644
--- a/client/src/cmdlfawid.c
+++ b/client/src/cmdlfawid.c
@@ -373,6 +373,7 @@ static int CmdAWIDClone(const char *Cmd) {
 
     // EM4305
     if (em) {
+        PrintAndLogEx(WARNING, "Beware some EM4305 tags don't support FSK and datarate = RF/50, check your tag copy!");
         blocks[0] = EM4305_AWID_CONFIG_BLOCK;
         snprintf(cardtype, sizeof(cardtype), "EM4305/4469");
     }
@@ -391,6 +392,14 @@ static int CmdAWIDClone(const char *Cmd) {
     blocks[2] = bytebits_to_byte(bits + 32, 32);
     blocks[3] = bytebits_to_byte(bits + 64, 32);
 
+    // EM4305
+    if (em) {
+        // invert FSK data
+        for (uint8_t i = 1; i < ARRAYLEN(blocks) ; i++) {
+                blocks[i] = blocks[i] ^ 0xFFFFFFFF;
+        }
+    }
+
     free(bits);
 
     PrintAndLogEx(INFO, "Preparing to clone AWID %u to " _YELLOW_("%s") " with FC: " _GREEN_("%u") " CN: " _GREEN_("%u"), fmtlen, cardtype, fc, cn);
diff --git a/client/src/cmdlfdestron.c b/client/src/cmdlfdestron.c
index 8fe5aac3a..aaca79ff8 100644
--- a/client/src/cmdlfdestron.c
+++ b/client/src/cmdlfdestron.c
@@ -182,6 +182,7 @@ static int CmdDestronClone(const char *Cmd) {
 
     // EM4305
     if (em) {
+        PrintAndLogEx(WARNING, "Beware some EM4305 tags don't support FSK and datarate = RF/50, check your tag copy!");
         blocks[0] = EM4305_DESTRON_CONFIG_BLOCK;
         snprintf(cardtype, sizeof(cardtype), "EM4305/4469");
     }
diff --git a/client/src/cmdlfhid.c b/client/src/cmdlfhid.c
index e78c83596..d25c06811 100644
--- a/client/src/cmdlfhid.c
+++ b/client/src/cmdlfhid.c
@@ -419,6 +419,7 @@ static int CmdHIDClone(const char *Cmd) {
 
     // EM4305
     if (em) {
+        PrintAndLogEx(WARNING, "Beware some EM4305 tags don't support FSK and datarate = RF/50, check your tag copy!");
         snprintf(cardtype, sizeof(cardtype), "EM4305/4469");
     }
 
diff --git a/client/src/cmdlfparadox.c b/client/src/cmdlfparadox.c
index a2ce045b0..ebfad9a0e 100644
--- a/client/src/cmdlfparadox.c
+++ b/client/src/cmdlfparadox.c
@@ -275,7 +275,12 @@ static int CmdParadoxClone(const char *Cmd) {
 
     // EM4305
     if (em) {
+        PrintAndLogEx(WARNING, "Beware some EM4305 tags don't support FSK and datarate = RF/50, check your tag copy!");
         blocks[0] = EM4305_PARADOX_CONFIG_BLOCK;
+        // invert FSK data
+        for (uint8_t i = 1; i < ARRAYLEN(blocks); i++) {
+                blocks[i] = blocks[i] ^ 0xFFFFFFFF;
+        }
         snprintf(cardtype, sizeof(cardtype), "EM4305/4469");
     }
 
diff --git a/client/src/cmdlfpyramid.c b/client/src/cmdlfpyramid.c
index da25c34a8..c0f9e8111 100644
--- a/client/src/cmdlfpyramid.c
+++ b/client/src/cmdlfpyramid.c
@@ -327,7 +327,12 @@ static int CmdPyramidClone(const char *Cmd) {
     }
     // EM4305
     if (em) {
+        PrintAndLogEx(WARNING, "Beware some EM4305 tags don't support FSK and datarate = RF/50, check your tag copy!");
         blocks[0] = EM4305_PYRAMID_CONFIG_BLOCK;
+        // invert FSK data
+        for (uint8_t i = 1; i < ARRAYLEN(blocks) ; i++) {
+                blocks[i] = blocks[i] ^ 0xFFFFFFFF;
+        }
         snprintf(cardtype, sizeof(cardtype), "EM4305/4469");
     }