Implement SeedDB & Seed Crypto

src/core/file_sys/seed_db.h

@@ -0,0 +1,38 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <array>
+#include <optional>
+#include <vector>
+#include "common/common_types.h"
+#include "common/swap.h"
+
+namespace FileSys {
+
+constexpr std::size_t SEEDDB_PADDING_BYTES{12};
+
+struct Seed {
+    using Data = std::array<u8, 16>;
+
+    u64_le title_id;
+    Data data;
+    std::array<u8, 8> reserved;
+};
+
+struct SeedDB {
+    std::vector<Seed> seeds;
+
+    bool Load();
+    bool Save();
+    void Add(const Seed& seed);
+
+    std::size_t GetCount() const;
+    auto FindSeedByTitleID(u64 title_id) const;
+};
+
+bool AddSeed(const Seed& seed);
+std::optional<Seed::Data> GetSeed(u64 title_id);
+u32 GetSeedCount();
+
+} // namespace FileSys