From d8da707bb90c233d5e815a508bea3473e6e50afa Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 27 Jun 2014 15:33:23 -0400 Subject: Loader: Refactored interface such that data is no longer stored by loader. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit NCCH: Removed extra qualification ‘Loader::AppLoader_NCCH::’. --- src/core/loader/ncch.cpp | 77 +++++++++++++++++++++--------------------------- 1 file changed, 34 insertions(+), 43 deletions(-) (limited to 'src/core/loader/ncch.cpp') diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp index 60505bdfa..0e3f768ce 100644 --- a/src/core/loader/ncch.cpp +++ b/src/core/loader/ncch.cpp @@ -125,25 +125,22 @@ ResultStatus AppLoader_NCCH::LoadExec() { if (!is_loaded) return ResultStatus::ErrorNotLoaded; - ResultStatus res; - code = ReadCode(res); - - if (ResultStatus::Success == res) { + std::vector code; + if (ResultStatus::Success == ReadCode(code)) { Memory::WriteBlock(entry_point, &code[0], code.size()); Kernel::LoadExec(entry_point); + return ResultStatus::Success; } - return res; + return ResultStatus::Error; } /** * Reads an application ExeFS section of an NCCH file into AppLoader (e.g. .code, .logo, etc.) * @param name Name of section to read out of NCCH file * @param buffer Vector to read data into - * @param error ResultStatus result of function - * @return Reference to buffer of data that was read + * @return ResultStatus result of function */ -const std::vector& AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector& buffer, - ResultStatus& error) { +ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector& buffer) { // Iterate through the ExeFs archive until we find the .code file... for (int i = 0; i < kMaxSections; i++) { // Load the specified section... @@ -169,20 +166,17 @@ const std::vector& AppLoader_NCCH::LoadSectionExeFS(const char* name, std::v buffer.resize(decompressed_size); if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0], decompressed_size)) { - error = ResultStatus::ErrorInvalidFormat; - return buffer; + return ResultStatus::ErrorInvalidFormat; } // Section is uncompressed... } else { buffer.resize(exefs_header.section[i].size); file.ReadBytes(&buffer[0], exefs_header.section[i].size); } - error = ResultStatus::Success; - return buffer; + return ResultStatus::Success; } } - error = ResultStatus::ErrorNotUsed; - return buffer; + return ResultStatus::ErrorNotUsed; } /** @@ -247,46 +241,46 @@ ResultStatus AppLoader_NCCH::Load() { /** * Get the code (typically .code section) of the application - * @param error ResultStatus result of function - * @return Reference to code buffer + * @param buffer Reference to buffer to store data + * @return ResultStatus result of function */ -const std::vector& AppLoader_NCCH::ReadCode(ResultStatus& error) { - return LoadSectionExeFS(".code", code, error); +ResultStatus AppLoader_NCCH::ReadCode(std::vector& buffer) { + return LoadSectionExeFS(".code", buffer); } /** * Get the icon (typically icon section) of the application - * @param error ResultStatus result of function - * @return Reference to icon buffer + * @param buffer Reference to buffer to store data + * @return ResultStatus result of function */ -const std::vector& AppLoader_NCCH::ReadIcon(ResultStatus& error) { - return LoadSectionExeFS("icon", icon, error); +ResultStatus AppLoader_NCCH::ReadIcon(std::vector& buffer) { + return LoadSectionExeFS("icon", buffer); } /** * Get the banner (typically banner section) of the application - * @param error ResultStatus result of function - * @return Reference to banner buffer + * @param buffer Reference to buffer to store data + * @return ResultStatus result of function */ -const std::vector& AppLoader_NCCH::ReadBanner(ResultStatus& error) { - return LoadSectionExeFS("banner", banner, error); +ResultStatus AppLoader_NCCH::ReadBanner(std::vector& buffer) { + return LoadSectionExeFS("banner", buffer); } /** * Get the logo (typically logo section) of the application - * @param error ResultStatus result of function - * @return Reference to logo buffer + * @param buffer Reference to buffer to store data + * @return ResultStatus result of function */ -const std::vector& AppLoader_NCCH::ReadLogo(ResultStatus& error) { - return LoadSectionExeFS("logo", logo, error); +ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) { + return LoadSectionExeFS("logo", buffer); } /** - * Get the RomFs archive of the application - * @param error ResultStatus result of function - * @return Reference to RomFs archive buffer + * Get the RomFS of the application + * @param buffer Reference to buffer to store data + * @return ResultStatus result of function */ -const std::vector& AppLoader_NCCH::ReadRomFS(ResultStatus& error) { +ResultStatus AppLoader_NCCH::ReadRomFS(std::vector& buffer) { // Check if the NCCH has a RomFS... if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) { u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000; @@ -295,18 +289,15 @@ const std::vector& AppLoader_NCCH::ReadRomFS(ResultStatus& error) { INFO_LOG(LOADER, "RomFS offset: 0x%08X", romfs_offset); INFO_LOG(LOADER, "RomFS size: 0x%08X", romfs_size); - romfs.resize(romfs_size); + buffer.resize(romfs_size); file.Seek(romfs_offset, 0); - file.ReadBytes(&romfs[0], romfs_size); + file.ReadBytes(&buffer[0], romfs_size); - error = ResultStatus::Success; - return romfs; - } else { - NOTICE_LOG(LOADER, "RomFS unused"); + return ResultStatus::Success; } - error = ResultStatus::ErrorNotUsed; - return romfs; + NOTICE_LOG(LOADER, "RomFS unused"); + return ResultStatus::ErrorNotUsed; } } // namespace Loader -- cgit v1.2.3 From 2c62d9255160b7302942d536c9c990b86c7fb907 Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 4 Jul 2014 13:11:09 -0400 Subject: Loader: Updated read methods to be const - Required "file" handle to be made local and explicitly opened/closed as needed --- src/core/loader/ncch.cpp | 118 ++++++++++++++++++++++++++--------------------- 1 file changed, 65 insertions(+), 53 deletions(-) (limited to 'src/core/loader/ncch.cpp') diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp index 0e3f768ce..a82338904 100644 --- a/src/core/loader/ncch.cpp +++ b/src/core/loader/ncch.cpp @@ -113,15 +113,13 @@ AppLoader_NCCH::AppLoader_NCCH(const std::string& filename) { /// AppLoader_NCCH destructor AppLoader_NCCH::~AppLoader_NCCH() { - if (file.IsOpen()) - file.Close(); } /** * Loads .code section into memory for booting * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::LoadExec() { +ResultStatus AppLoader_NCCH::LoadExec() const { if (!is_loaded) return ResultStatus::ErrorNotLoaded; @@ -140,41 +138,48 @@ ResultStatus AppLoader_NCCH::LoadExec() { * @param buffer Vector to read data into * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector& buffer) { +ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector& buffer) const { // Iterate through the ExeFs archive until we find the .code file... - for (int i = 0; i < kMaxSections; i++) { - // Load the specified section... - if (strcmp((const char*)exefs_header.section[i].name, name) == 0) { - INFO_LOG(LOADER, "ExeFS section %d:", i); - INFO_LOG(LOADER, " name: %s", exefs_header.section[i].name); - INFO_LOG(LOADER, " offset: 0x%08X", exefs_header.section[i].offset); - INFO_LOG(LOADER, " size: 0x%08X", exefs_header.section[i].size); - - s64 section_offset = (exefs_header.section[i].offset + exefs_offset + - sizeof(ExeFs_Header) + ncch_offset); - file.Seek(section_offset, 0); - - // Section is compressed... - if (i == 0 && is_compressed) { - // Read compressed .code section... - std::unique_ptr temp_buffer(new u8[exefs_header.section[i].size]); - file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size); - - // Decompress .code section... - u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0], - exefs_header.section[i].size); - buffer.resize(decompressed_size); - if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0], - decompressed_size)) { - return ResultStatus::ErrorInvalidFormat; + File::IOFile file(filename, "rb"); + if (file.IsOpen()) { + for (int i = 0; i < kMaxSections; i++) { + // Load the specified section... + if (strcmp((const char*)exefs_header.section[i].name, name) == 0) { + INFO_LOG(LOADER, "ExeFS section %d:", i); + INFO_LOG(LOADER, " name: %s", exefs_header.section[i].name); + INFO_LOG(LOADER, " offset: 0x%08X", exefs_header.section[i].offset); + INFO_LOG(LOADER, " size: 0x%08X", exefs_header.section[i].size); + + s64 section_offset = (exefs_header.section[i].offset + exefs_offset + + sizeof(ExeFs_Header)+ncch_offset); + file.Seek(section_offset, 0); + + // Section is compressed... + if (i == 0 && is_compressed) { + // Read compressed .code section... + std::unique_ptr temp_buffer(new u8[exefs_header.section[i].size]); + file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size); + + // Decompress .code section... + u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0], + exefs_header.section[i].size); + buffer.resize(decompressed_size); + if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0], + decompressed_size)) { + return ResultStatus::ErrorInvalidFormat; + } + // Section is uncompressed... } - // Section is uncompressed... - } else { - buffer.resize(exefs_header.section[i].size); - file.ReadBytes(&buffer[0], exefs_header.section[i].size); + else { + buffer.resize(exefs_header.section[i].size); + file.ReadBytes(&buffer[0], exefs_header.section[i].size); + } + return ResultStatus::Success; } - return ResultStatus::Success; } + } else { + ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str()); + return ResultStatus::Error; } return ResultStatus::ErrorNotUsed; } @@ -191,8 +196,7 @@ ResultStatus AppLoader_NCCH::Load() { if (is_loaded) return ResultStatus::ErrorAlreadyLoaded; - file = File::IOFile(filename, "rb"); - + File::IOFile file(filename, "rb"); if (file.IsOpen()) { file.ReadBytes(&ncch_header, sizeof(NCCH_Header)); @@ -235,6 +239,8 @@ ResultStatus AppLoader_NCCH::Load() { LoadExec(); // Load the executable into memory for booting return ResultStatus::Success; + } else { + ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str()); } return ResultStatus::Error; } @@ -244,7 +250,7 @@ ResultStatus AppLoader_NCCH::Load() { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadCode(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadCode(std::vector& buffer) const { return LoadSectionExeFS(".code", buffer); } @@ -253,7 +259,7 @@ ResultStatus AppLoader_NCCH::ReadCode(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadIcon(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadIcon(std::vector& buffer) const { return LoadSectionExeFS("icon", buffer); } @@ -262,7 +268,7 @@ ResultStatus AppLoader_NCCH::ReadIcon(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadBanner(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadBanner(std::vector& buffer) const { return LoadSectionExeFS("banner", buffer); } @@ -271,7 +277,7 @@ ResultStatus AppLoader_NCCH::ReadBanner(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) { +ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) const { return LoadSectionExeFS("logo", buffer); } @@ -280,24 +286,30 @@ ResultStatus AppLoader_NCCH::ReadLogo(std::vector& buffer) { * @param buffer Reference to buffer to store data * @return ResultStatus result of function */ -ResultStatus AppLoader_NCCH::ReadRomFS(std::vector& buffer) { - // Check if the NCCH has a RomFS... - if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) { - u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000; - u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000; +ResultStatus AppLoader_NCCH::ReadRomFS(std::vector& buffer) const { + File::IOFile file(filename, "rb"); + if (file.IsOpen()) { + // Check if the NCCH has a RomFS... + if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) { + u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000; + u32 romfs_size = (ncch_header.romfs_size * kBlockSize) - 0x1000; - INFO_LOG(LOADER, "RomFS offset: 0x%08X", romfs_offset); - INFO_LOG(LOADER, "RomFS size: 0x%08X", romfs_size); + INFO_LOG(LOADER, "RomFS offset: 0x%08X", romfs_offset); + INFO_LOG(LOADER, "RomFS size: 0x%08X", romfs_size); - buffer.resize(romfs_size); + buffer.resize(romfs_size); - file.Seek(romfs_offset, 0); - file.ReadBytes(&buffer[0], romfs_size); + file.Seek(romfs_offset, 0); + file.ReadBytes(&buffer[0], romfs_size); - return ResultStatus::Success; + return ResultStatus::Success; + } + NOTICE_LOG(LOADER, "RomFS unused"); + return ResultStatus::ErrorNotUsed; + } else { + ERROR_LOG(LOADER, "Unable to read file %s!", filename.c_str()); } - NOTICE_LOG(LOADER, "RomFS unused"); - return ResultStatus::ErrorNotUsed; + return ResultStatus::Error; } } // namespace Loader -- cgit v1.2.3 From b70c4fb48ec32057e56d9c0373794670bddd4f34 Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 4 Jul 2014 20:32:06 -0400 Subject: NCCH: Updated ExeFS memory allocation to be safer. --- src/core/loader/ncch.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'src/core/loader/ncch.cpp') diff --git a/src/core/loader/ncch.cpp b/src/core/loader/ncch.cpp index a82338904..ba27eb75a 100644 --- a/src/core/loader/ncch.cpp +++ b/src/core/loader/ncch.cpp @@ -157,7 +157,12 @@ ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector& // Section is compressed... if (i == 0 && is_compressed) { // Read compressed .code section... - std::unique_ptr temp_buffer(new u8[exefs_header.section[i].size]); + std::unique_ptr temp_buffer; + try { + temp_buffer.reset(new u8[exefs_header.section[i].size]); + } catch (std::bad_alloc&) { + return ResultStatus::ErrorMemoryAllocationFailed; + } file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size); // Decompress .code section... -- cgit v1.2.3