Add BootMii NAND import functionality

Source/Core/DiscIO/NANDImporter.h

@@ -0,0 +1,60 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <string>
+#include <vector>
+
+#include "Common/CommonTypes.h"
+
+namespace DiscIO
+{
+class NANDImporter final
+{
+public:
+  NANDImporter();
+  ~NANDImporter();
+
+  void ImportNANDBin(const std::string& path_to_bin,
+                     std::function<void(size_t, size_t)> update_callback);
+  void ExtractCertificates(const std::string& nand_root);
+
+private:
+#pragma pack(push, 1)
+  struct NANDFSTEntry
+  {
+    u8 name[12];
+    u8 mode;   // 0x0C
+    u8 attr;   // 0x0D
+    u16 sub;   // 0x0E
+    u16 sib;   // 0x10
+    u32 size;  // 0x12
+    u16 x1;    // 0x16
+    u16 uid;   // 0x18
+    u16 gid;   // 0x1A
+    u32 x3;    // 0x1C
+  };
+#pragma pack(pop)
+
+  bool ReadNANDBin(const std::string& path_to_bin);
+  void FindSuperblock();
+  std::string GetPath(const NANDFSTEntry& entry, const std::string& parent_path);
+  void ProcessEntry(u16 entry_number, const std::string& parent_path);
+  void ProcessFile(const NANDFSTEntry& entry, const std::string& parent_path);
+  void ProcessDirectory(const NANDFSTEntry& entry, const std::string& parent_path);
+  void ExportKeys(const std::string& nand_root);
+  void CountEntries(u16 entry_number);
+  void UpdateStatus();
+
+  std::vector<u8> m_nand;
+  std::vector<u8> m_nand_keys;
+  size_t m_nand_fat_offset = 0;
+  size_t m_nand_fst_offset = 0;
+  std::function<void(size_t, size_t)> m_update_callback;
+  size_t m_total_entries = 0;
+  size_t m_current_entry = 0;
+};
+}