Added standalone mode for ISO15693 cards.

armsrc/Standalone/Makefile.hal

@@ -68,13 +68,16 @@ define KNOWN_STANDALONE_DEFINITIONS
 | HF_TCPRST       | IKEA Rothult read/sim/dump/emul        |
 |                 | - Nick Draffen                         |
 +----------------------------------------------------------+
+| HF_TMUDFORD     | Read and emulate 15 tags               |
+|                 | - Tim Mudford                          |
++----------------------------------------------------------+
 | HF_YOUNG        | Mifare sniff/simulation                |
 |                 | - Craig Young                          |
 +----------------------------------------------------------+
 endef
 
 STANDALONE_MODES := LF_SKELETON LF_EM4100EMUL LF_EM4100RSWB LF_EM4100RWC LF_HIDBRUTE LF_ICEHID LF_PROXBRUTE LF_SAMYRUN LF_THAREXDE
-STANDALONE_MODES += HF_14ASNIFF HF_AVEFUL HF_BOG HF_COLIN HF_CRAFTBYTE HF_ICECLASS HF_LEGIC HF_MATTYRUN HF_MSDSAL HF_TCPRST HF_YOUNG 
+STANDALONE_MODES += HF_14ASNIFF HF_AVEFUL HF_BOG HF_COLIN HF_CRAFTBYTE HF_ICECLASS HF_LEGIC HF_MATTYRUN HF_MSDSAL HF_TCPRST HF_TMUDFORD HF_YOUNG
 STANDALONE_MODES_REQ_SMARTCARD :=
 STANDALONE_MODES_REQ_FLASH := LF_ICEHID LF_THAREXDE HF_14ASNIFF HF_BOG HF_COLIN HF_ICECLASS
 ifneq ($(filter $(STANDALONE),$(STANDALONE_MODES)),)

armsrc/Standalone/Makefile.inc

@@ -81,3 +81,7 @@ endif
 ifneq (,$(findstring WITH_STANDALONE_HF_CRAFTBYTE,$(APP_CFLAGS)))
     SRC_STANDALONE = hf_craftbyte.c
 endif
+# WITH_STANDALONE_HF_TMUDFORD
+ifneq (,$(findstring WITH_STANDALONE_HF_TMUDFORD,$(APP_CFLAGS)))
+    SRC_STANDALONE = hf_tmudford.c
+endif

armsrc/Standalone/hf_tmudford.c

@@ -0,0 +1,83 @@
+//-----------------------------------------------------------------------------
+// Copyright 2021 Tim Mudford <tim.mudford1@gmail.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.
+//-----------------------------------------------------------------------------
+// main code for hf_tmudford
+//-----------------------------------------------------------------------------
+//
+//
+// `hf_tmudford` Continuously scans for ISO15693 card UID and then emulates it.
+//
+
+#include "standalone.h"
+#include "proxmark3_arm.h"
+#include "appmain.h"
+#include "fpgaloader.h"
+#include "util.h"
+#include "dbprint.h"
+#include "ticks.h"
+
+#include "iso15693.h"
+#include "iso15.h"
+
+#define STATE_READ 0
+#define STATE_EMUL 1
+
+void ModInfo(void) {
+    DbpString("HF TMUDFORD mode - Scans and emulates ISO15693 UID (Tim Mudford)");
+}
+
+void RunMod(void) {
+    StandAloneMode();
+    Dbprintf(_YELLOW_("HF TMUDFORD mode started"));
+    FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+
+    for (;;) {
+        WDT_HIT();
+        if (data_available()) break;
+
+        SpinDelay(500);
+
+        // 0 = search, 1 = read, 2 = emul
+        int state = STATE_READ;
+        iso15_card_select_t card;
+
+        DbpString("Scanning...");
+        int button_pressed = BUTTON_NO_CLICK;
+        for (;;) {
+            // Was our button held down or pressed?
+            button_pressed = BUTTON_HELD(1000);
+
+            if (button_pressed != BUTTON_NO_CLICK || data_available())
+                break;
+            else if (state == STATE_READ) {
+                Iso15693InitReader();
+                ReaderIso15693(0, &card);
+
+                if (card.uidlen == 0) {
+                    LED_D_OFF();
+                    SpinDelay(500);
+                    continue;
+                } else {
+                    Dbprintf("Found card with UID: ");
+                    Dbhexdump(card.uidlen, card.uid, 0);
+                    state = STATE_EMUL;
+                }
+            } else if (state == STATE_EMUL) {
+                Iso15693InitTag();
+                Dbprintf("Starting simulation, press pm3-button to stop and go back to search state.");
+                SimTagIso15693(card.uid);
+
+                state = STATE_READ;
+            }
+        }
+        if (button_pressed  == BUTTON_HOLD)
+            break;
+    }
+
+    Dbprintf("-=[ exit ]=-");
+    LEDsoff();
+}

armsrc/appmain.c

@@ -1233,7 +1233,7 @@ static void PacketReceived(PacketCommandNG *packet) {
             break;
         }
         case CMD_HF_ISO15693_READER: {
-            ReaderIso15693(packet->oldarg[0]);
+            ReaderIso15693(packet->oldarg[0], NULL);
             break;
         }
         case CMD_HF_ISO15693_SIMULATE: {

armsrc/iso15693.c

@@ -1581,7 +1581,7 @@ static void DbdecodeIso15693Answer(int len, uint8_t *d) {
 //-----------------------------------------------------------------------------
 // ok
 // parameter is unused !?!
-void ReaderIso15693(uint32_t parameter) {
+void ReaderIso15693(uint32_t parameter, iso15_card_select_t *p_card) {
 
     LED_A_ON();
     set_tracing(true);
@@ -1617,6 +1617,11 @@ void ReaderIso15693(uint32_t parameter) {
             uid[6] = answer[3];
             uid[7] = answer[2];
 
+            if (p_card != NULL) {
+                memcpy(p_card->uid, uid, 8);
+                p_card->uidlen = 8;
+            }
+
             if (DBGLEVEL >= DBG_EXTENDED) {
                 Dbprintf("[+] UID = %02X%02X%02X%02X%02X%02X%02X%02X",
                          uid[0], uid[1], uid[2], uid[3],
@@ -1636,6 +1641,7 @@ void ReaderIso15693(uint32_t parameter) {
                 Dbhexdump(recvlen, answer, true);
             }
         } else {
+            p_card->uidlen = 0;
             DbpString("Failed to select card");
             reply_mix(CMD_ACK, 0, 0, 0, NULL, 0);
         }

armsrc/iso15693.h

@@ -13,6 +13,7 @@
 
 #include "common.h"
 #include "pm3_cmd.h" // struct
+#include "iso15.h"
 
 
 // Delays in SSP_CLK ticks.
@@ -35,7 +36,7 @@ int GetIso15693AnswerFromTag(uint8_t *response, uint16_t max_len, uint16_t timeo
 
 //void RecordRawAdcSamplesIso15693(void);
 void AcquireRawAdcSamplesIso15693(void);
-void ReaderIso15693(uint32_t parameter); // Simulate an ISO15693 reader - greg
+void ReaderIso15693(uint32_t parameter, iso15_card_select_t *p_card); // Simulate an ISO15693 reader - greg
 void SimTagIso15693(uint8_t *uid); // simulate an ISO15693 tag - greg
 void BruteforceIso15693Afi(uint32_t speed); // find an AFI of a tag - atrox
 void DirectTag15693Command(uint32_t datalen, uint32_t speed, uint32_t recv, uint8_t *data); // send arbitrary commands from CLI - atrox

include/iso15.h

@@ -13,12 +13,12 @@
 
 #include "common.h"
 typedef struct {
-    uint8_t uid[10];
+    uint8_t uid[8];
     uint8_t uidlen;
     uint8_t atqb[7];
     uint8_t chipid;
     uint8_t cid;
-} PACKED iso14b_card_select_t;
+} PACKED iso15_card_select_t;
 
 typedef enum ISO15_COMMAND {
     ISO15_CONNECT = (1 << 0),