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/*
Copyright 2016-2023 melonDS team
This file is part of melonDS.
melonDS is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with melonDS. If not, see http://www.gnu.org/licenses/.
*/
#ifndef DSI_TMD_H
#define DSI_TMD_H
#include "types.h"
#include <array>
namespace melonDS::DSi_TMD
{
struct TitleMetadataContent {
u8 ContentId[4]; /// Content ID (00,00,00,vv) ;lowercase/hex ;"0000000vv.app"
u8 ContentIndex[2]; /// Content Index (00,00)
u8 ContentType[2]; /// Content Type (00,01) ;aka DSi .app
u8 ContentSize[8]; /// Content Size (00,00,00,00,00,19,E4,00)
u8 ContentSha1Hash[20]; /// Content SHA1 (on decrypted ".app" file)
[[nodiscard]] u32 GetVersion() const noexcept
{
return (ContentId[0] << 24) | (ContentId[1] << 16) | (ContentId[2] << 8) | ContentId[3];
}
};
static_assert(sizeof(TitleMetadataContent) == 36, "TitleMetadataContent is not 36 bytes!");
/// Metadata for a DSiWare title.
/// Used to install DSiWare titles to NAND.
/// @see https://problemkaputt.de/gbatek.htm#dsisdmmcdsiwareticketsandtitlemetadata
struct TitleMetadata
{
u32 SignatureType;
u8 Signature[256];
u8 SignatureAlignment[60];
char SignatureName[64];
u8 TmdVersion;
u8 CaCrlVersion;
u8 SignerCrlVersion;
u8 Padding0;
u8 SystemVersion[8];
u8 TitleId[8];
u32 TitleType;
u8 GroupId[2];
u8 PublicSaveSize[4];
u8 PrivateSaveSize[4];
u8 Padding1[4];
u8 SrlFlag;
u8 Padding2[3];
u8 AgeRatings[16];
u8 Padding3[30];
u32 AccessRights;
u16 TitleVersion;
u16 NumberOfContents; /// There's always one or zero content entries in practice
u16 BootContentIndex;
u8 Padding4[2];
TitleMetadataContent Contents;
[[nodiscard]] bool HasPublicSaveData() const noexcept { return GetPublicSaveSize() != 0; }
[[nodiscard]] bool HasPrivateSaveData() const noexcept { return GetPrivateSaveSize() != 0; }
[[nodiscard]] u32 GetPublicSaveSize() const noexcept
{
return (PublicSaveSize[0] << 24) | (PublicSaveSize[1] << 16) | (PublicSaveSize[2] << 8) | PublicSaveSize[3];
}
[[nodiscard]] u32 GetPrivateSaveSize() const noexcept
{
return (PrivateSaveSize[0] << 24) | (PrivateSaveSize[1] << 16) | (PrivateSaveSize[2] << 8) | PrivateSaveSize[3];
}
[[nodiscard]] u32 GetCategory() const noexcept
{
return (TitleId[0] << 24) | (TitleId[1] << 16) | (TitleId[2] << 8) | TitleId[3];
}
[[nodiscard]] u32 GetCategoryNoByteswap() const noexcept
{
return reinterpret_cast<const u32&>(TitleId);
}
[[nodiscard]] u32 GetID() const noexcept
{
return (TitleId[4] << 24) | (TitleId[5] << 16) | (TitleId[6] << 8) | TitleId[7];
}
[[nodiscard]] u32 GetIDNoByteswap() const noexcept
{
return *reinterpret_cast<const u32*>(&TitleId[4]);
}
};
static_assert(sizeof(TitleMetadata) == 520, "TitleMetadata is not 520 bytes!");
}
#endif // DSI_TMD_H
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