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file_sys/ncch_container: add RomFS, ExeFS override to allow for backward compatibility with existing .romfs system archive dumps

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This commit is contained in:
shinyquagsire23
2017-10-01 10:30:47 -06:00
parent c93e5ecfe6
commit e21f2348e7
2 changed files with 211 additions and 74 deletions
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30
src/core/file_sys/ncch_container.h
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@ -179,6 +179,13 @@ public:
*/
Loader::ResultStatus Load();
/**
* Attempt to find overridden sections for the NCCH and mark the container as tainted
* if any are found.
* @return ResultStatus result of function
*/
Loader::ResultStatus LoadOverrides();
/**
* Reads an application ExeFS section of an NCCH file (e.g. .code, .logo, etc.)
* @param name Name of section to read out of NCCH file
@ -187,6 +194,15 @@ public:
*/
Loader::ResultStatus LoadSectionExeFS(const char* name, std::vector<u8>& buffer);
/**
* Reads an application ExeFS section from external files instead of an NCCH file,
* (e.g. code.bin, logo.bcma.lz, icon.icn, banner.bnr)
* @param name Name of section to read from external files
* @param buffer Vector to read data into
* @return ResultStatus result of function
*/
Loader::ResultStatus LoadOverrideExeFSSection(const char* name, std::vector<u8>& buffer);
/**
* Get the RomFS of the NCCH container
* Since the RomFS can be huge, we return a file reference instead of copying to a buffer
@ -198,6 +214,17 @@ public:
Loader::ResultStatus ReadRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file, u64& offset,
u64& size);
/**
* Get the override RomFS of the NCCH container
* Since the RomFS can be huge, we return a file reference instead of copying to a buffer
* @param romfs_file The file containing the RomFS
* @param offset The offset the romfs begins on
* @param size The size of the romfs
* @return ResultStatus result of function
*/
Loader::ResultStatus ReadOverrideRomFS(std::shared_ptr<FileUtil::IOFile>& romfs_file,
u64& offset, u64& size);
/**
* Get the Program ID of the NCCH container
* @return ResultStatus result of function
@ -227,10 +254,12 @@ public:
ExHeader_Header exheader_header;
private:
bool has_header = false;
bool has_exheader = false;
bool has_exefs = false;
bool has_romfs = false;
bool is_tainted = false; // Are there parts of this container being overridden?
bool is_loaded = false;
bool is_compressed = false;
@ -239,6 +268,7 @@ private:
std::string filepath;
FileUtil::IOFile file;
FileUtil::IOFile exefs_file;
};
} // namespace FileSys