Ndef and MAD (#801)

* move mifare stuff to separate folder
* add mad and ndef

client/mifare/ndef.h

@@ -0,0 +1,62 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) 2019 Merlok
+//
+// 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.
+//-----------------------------------------------------------------------------
+// NFC Data Exchange Format (NDEF) functions
+//-----------------------------------------------------------------------------
+
+#ifndef _NDEF_H_
+#define _NDEF_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+typedef enum {
+    tnfEmptyRecord          = 0x00,
+    tnfWellKnownRecord      = 0x01,
+    tnfMIMEMediaRecord      = 0x02,
+    tnfAbsoluteURIRecord    = 0x03,
+    tnfExternalRecord       = 0x04,
+    tnfUnknownRecord        = 0x05,
+    tnfUnchangedRecord      = 0x06
+} TypeNameFormat_t;
+
+typedef enum {
+    stNotPresent            = 0x00,
+    stRSASSA_PSS_SHA_1      = 0x01,
+    stRSASSA_PKCS1_v1_5_WITH_SHA_1 = 0x02,
+    stDSA                   = 0x03,
+    stECDSA                 = 0x04,
+    stNA                    = 0x05
+} ndefSigType_t;
+
+typedef enum {
+    sfX_509 = 0x00,
+    sfX9_68 = 0x01,
+    sfNA    = 0x02
+} ndefCertificateFormat_t;
+
+typedef struct {
+    bool MessageBegin;
+    bool MessageEnd;
+    bool ChunkFlag;
+    bool ShortRecordBit;
+    bool IDLenPresent;
+    TypeNameFormat_t TypeNameFormat;
+    size_t TypeLen;
+    size_t PayloadLen;
+    size_t IDLen;
+    size_t len;
+    size_t RecLen;
+    uint8_t *Type;
+    uint8_t *Payload;
+    uint8_t *ID;
+} NDEFHeader_t;
+
+extern int NDEFDecodeAndPrint(uint8_t *ndef, size_t ndefLen, bool verbose);
+
+#endif // _NDEF_H_