Merge pull request #625 from uhei/legic-standalone

Standalone mode: Adding Legic Prime read/sim run

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]
+ - Added `HF_LEGIC` standalone mode to read and simulate a Legic prime tag (@Pizza_4u)
  - Added keri MS decode/encode and update 'lf keri clone' to support MS fc/cid cloning. (@mwalker33)
  - Fix 'hf mfdes enum' - now actually manages to enumerate files under all AID's. :smiley:  (@iceman1001)
  - Fix 'hf mfdes info' - now detects DESFire light and work properly Wrapped commands :+1: (@iceman1001)

armsrc/Standalone/Makefile.hal

@@ -50,7 +50,7 @@ define KNOWN_STANDALONE_DEFINITIONS
 endef
 
 STANDALONE_MODES := LF_SAMYRUN LF_ICERUN LF_PROXBRUTE LF_HIDBRUTE LF_ICEHID LF_EM4100EMUL LF_EM4100RWC
-STANDALONE_MODES += HF_YOUNG HF_MATTYRUN HF_COLIN HF_BOG HF_14ASNIFF
+STANDALONE_MODES += HF_YOUNG HF_MATTYRUN HF_COLIN HF_BOG HF_14ASNIFF HF_LEGIC
 STANDALONE_MODES_REQ_SMARTCARD :=
 STANDALONE_MODES_REQ_FLASH := HF_COLIN HF_BOG HF_14ASNIFF LF_ICEHID
 ifneq ($(filter $(STANDALONE),$(STANDALONE_MODES)),)

armsrc/Standalone/Makefile.inc

@@ -48,4 +48,8 @@ endif
 # WITH_STANDALONE_LF_EM4100RWC
 ifneq (,$(findstring WITH_STANDALONE_LF_EM4100RWC,$(APP_CFLAGS)))
     SRC_STANDALONE = lf_em4100rwc.c
-endif
+endif
+# WITH_STANDALONE_HF_LEGIC
+ifneq (,$(findstring WITH_STANDALONE_HF_LEGIC,$(APP_CFLAGS)))
+   SRC_STANDALONE = hf_legic.c
+endif

armsrc/Standalone/hf_legic.c

@@ -0,0 +1,80 @@
+//-----------------------------------------------------------------------------
+// Stefanie Hofmann, 2020
+// Uli Heilmeier, 2020
+//
+// 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.
+//-----------------------------------------------------------------------------
+// main code for Legic Prime read/sim
+//-----------------------------------------------------------------------------
+#include "standalone.h"
+#include "proxmark3_arm.h"
+#include "appmain.h"
+#include "fpgaloader.h"
+#include "util.h"
+#include "dbprint.h"
+#include "ticks.h"
+
+#include "legicrf.h"
+#include "legicrfsim.h"
+
+void ModInfo(void) {
+    DbpString("  HF Legic Prime standalone  ");
+}
+
+// Searching for Legic card until found and read.
+// Simulating recorded Legic Prime card.
+// C = Searching
+// A, B, C = Reading
+// A, D = Simulating
+
+void RunMod() {
+    StandAloneMode();
+    FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+    Dbprintf(">>  HF Legic Prime Read/Simulate Started  <<");
+
+    int read_success;
+    for (;;) {
+        WDT_HIT();
+
+        //exit from hf_legic,  send usbcommand
+        if (data_available()) break;
+
+        //Was our button held down or pressed?
+        int button_pressed = BUTTON_HELD(280);
+        if (button_pressed != BUTTON_HOLD) continue;
+
+        LED_A_OFF();
+        LED_B_OFF();
+        LED_C_ON();
+        LED_D_OFF();
+
+        WAIT_BUTTON_RELEASED();
+
+        //record
+        DbpString("[=] start recording");
+
+        //search for legic card until reading successfull or button pressed
+        do {
+            LED_C_ON();
+            SpinDelay(1000);
+            // We don't care if we read a MIM256, MIM512 or MIM1024
+            // we just read 1024 bytes
+            read_success = LegicRfReader(0, 1024, 0x55);
+        } while (read_success == 0 && !BUTTON_PRESS());
+
+        //simulate if read successfully
+        if (read_success == 1) {
+            LED_A_OFF();
+            LED_B_OFF();
+            LED_C_OFF();
+            LED_D_ON();
+            // The read data is migrated to a MIM1024 card
+            LegicRfSimulate(2);
+        } else {
+            LEDsoff();
+            WAIT_BUTTON_RELEASED();
+        }
+    }
+}

armsrc/legicrf.c

@@ -441,7 +441,8 @@ OUT:
     StopTicks();
 }
 
-void LegicRfReader(uint16_t offset, uint16_t len, uint8_t iv) {
+int LegicRfReader(uint16_t offset, uint16_t len, uint8_t iv) {
+    int read_success = 0;
     // configure ARM and FPGA
     init_reader(false);
 
@@ -467,11 +468,13 @@ void LegicRfReader(uint16_t offset, uint16_t len, uint8_t iv) {
     }
 
     // OK
+    read_success = 1;
     reply_old(CMD_ACK, 1, len, 0, legic_mem, len);
 
 OUT:
     switch_off();
     StopTicks();
+    return read_success;
 }
 
 void LegicRfWriter(uint16_t offset, uint16_t len, uint8_t iv, uint8_t *data) {

armsrc/legicrf.h

@@ -15,7 +15,6 @@
 #include "common.h"
 
 void LegicRfInfo(void);
-void LegicRfReader(uint16_t offset, uint16_t len, uint8_t iv);
+int LegicRfReader(uint16_t offset, uint16_t len, uint8_t iv);
 void LegicRfWriter(uint16_t offset, uint16_t len, uint8_t iv, uint8_t *data);
-
 #endif /* __LEGICRF_H */