added EM4x50 JSON export

client/src/cmdlfem4x50.c

@@ -683,9 +683,11 @@ int CmdEM4x50Dump(const char *Cmd) {
 
     // saveFileEML will add .eml extension to filename
     // saveFile (binary) passes in the .bin extension.
+    // saveFileJSON adds .json extension
     saveFileEML(filename, data, sizeof(data), 4);
     saveFile(filename, ".bin", data, sizeof(data));
-    //saveFileJSON...
+    saveFileJSON(filename, jsfEM4x50, data, sizeof(data), NULL);
+
     return PM3_SUCCESS;
 }
 

client/src/fileutils.c

@@ -521,6 +521,20 @@ int saveFileJSONex(const char *preferredName, JSONFileType ftype, uint8_t *data,
             }
             break;
         }
+        case jsfEM4x50: {
+            JsonSaveStr(root, "FileType", "EM4X50");
+            JsonSaveBufAsHexCompact(root, "$.Card.Protection", data + (1 * 4), 4);
+            JsonSaveBufAsHexCompact(root, "$.Card.Config", data + (2 * 4), 4);
+            JsonSaveBufAsHexCompact(root, "$.Card.Serial", data + (32 * 4), 4);
+            JsonSaveBufAsHexCompact(root, "$.Card.UID", data + (33 * 4), 4);
+
+            for (size_t i = 0; i < (datalen / 4); i++) {
+                char path[PATH_MAX_LENGTH] = {0};
+                sprintf(path, "$.blocks.%zu", i);
+                JsonSaveBufAsHexCompact(root, path, data + (i * 4), 4);
+            }
+            break;
+        }
         case jsfMfPlusKeys: {
             JsonSaveStr(root, "FileType", "mfp");
             JsonSaveBufAsHexCompact(root, "$.Card.UID", &data[0], 7);

client/src/fileutils.h

@@ -66,6 +66,7 @@ typedef enum {
     jsfMfDesfireKeys,
     jsfEM4x05,
     jsfEM4x69,
+    jsfEM4x50,
 } JSONFileType;
 
 typedef enum {