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@ -4,8 +4,6 @@
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#include <memory>
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#include <memory>
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#include "common/file_util.h"
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#include "core/loader/ncch.h"
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#include "core/loader/ncch.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/mem_map.h"
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#include "core/mem_map.h"
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@ -24,7 +22,7 @@ static const int kBlockSize = 0x200; ///< Size of ExeFS blocks (in bytes)
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* @param size Size of compressed buffer
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* @param size Size of compressed buffer
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* @return Size of decompressed buffer
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* @return Size of decompressed buffer
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*/
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*/
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static u32 LZSS_GetDecompressedSize(u8* buffer, u32 size) {
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static u32 LZSS_GetDecompressedSize(const u8* buffer, u32 size) {
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u32 offset_size = *(u32*)(buffer + size - 4);
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u32 offset_size = *(u32*)(buffer + size - 4);
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return offset_size + size;
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return offset_size + size;
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}
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}
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@ -37,9 +35,9 @@ static u32 LZSS_GetDecompressedSize(u8* buffer, u32 size) {
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* @param decompressed_size Size of decompressed buffer
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* @param decompressed_size Size of decompressed buffer
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* @return True on success, otherwise false
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* @return True on success, otherwise false
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*/
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*/
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static bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompressed, u32 decompressed_size) {
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static bool LZSS_Decompress(const u8* compressed, u32 compressed_size, u8* decompressed, u32 decompressed_size) {
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u8* footer = compressed + compressed_size - 8;
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const u8* footer = compressed + compressed_size - 8;
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u32 buffer_top_and_bottom = *(u32*)footer;
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u32 buffer_top_and_bottom = *reinterpret_cast<const u32*>(footer);
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u32 out = decompressed_size;
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u32 out = decompressed_size;
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u32 index = compressed_size - ((buffer_top_and_bottom >> 24) & 0xFF);
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u32 index = compressed_size - ((buffer_top_and_bottom >> 24) & 0xFF);
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u32 stop_index = compressed_size - (buffer_top_and_bottom & 0xFFFFFF);
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u32 stop_index = compressed_size - (buffer_top_and_bottom & 0xFFFFFF);
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@ -47,22 +45,21 @@ static bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompresse
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memset(decompressed, 0, decompressed_size);
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memset(decompressed, 0, decompressed_size);
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memcpy(decompressed, compressed, compressed_size);
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memcpy(decompressed, compressed, compressed_size);
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while(index > stop_index) {
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while (index > stop_index) {
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u8 control = compressed[--index];
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u8 control = compressed[--index];
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for(u32 i = 0; i < 8; i++) {
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for (unsigned i = 0; i < 8; i++) {
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if(index <= stop_index)
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if (index <= stop_index)
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break;
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break;
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if(index <= 0)
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if (index <= 0)
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break;
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break;
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if(out <= 0)
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if (out <= 0)
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break;
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break;
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if(control & 0x80) {
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if (control & 0x80) {
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// Check if compression is out of bounds
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// Check if compression is out of bounds
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if(index < 2) {
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if (index < 2)
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return false;
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return false;
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}
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index -= 2;
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index -= 2;
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u32 segment_offset = compressed[index] | (compressed[index + 1] << 8);
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u32 segment_offset = compressed[index] | (compressed[index + 1] << 8);
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@ -71,23 +68,21 @@ static bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompresse
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segment_offset += 2;
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segment_offset += 2;
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// Check if compression is out of bounds
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// Check if compression is out of bounds
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if(out < segment_size) {
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if (out < segment_size)
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return false;
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return false;
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}
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for(u32 j = 0; j < segment_size; j++) {
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for (unsigned j = 0; j < segment_size; j++) {
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// Check if compression is out of bounds
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// Check if compression is out of bounds
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if(out + segment_offset >= decompressed_size) {
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if (out + segment_offset >= decompressed_size)
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return false;
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return false;
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}
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u8 data = decompressed[out + segment_offset];
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u8 data = decompressed[out + segment_offset];
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decompressed[--out] = data;
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decompressed[--out] = data;
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}
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}
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} else {
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} else {
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// Check if compression is out of bounds
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// Check if compression is out of bounds
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if(out < 1) {
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if (out < 1)
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return false;
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return false;
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}
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decompressed[--out] = compressed[--index];
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decompressed[--out] = compressed[--index];
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}
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}
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control <<= 1;
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control <<= 1;
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@ -99,24 +94,21 @@ static bool LZSS_Decompress(u8* compressed, u32 compressed_size, u8* decompresse
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////////////////////////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// AppLoader_NCCH class
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// AppLoader_NCCH class
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/// AppLoader_NCCH constructor
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FileType AppLoader_NCCH::IdentifyType(FileUtil::IOFile& file) {
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AppLoader_NCCH::AppLoader_NCCH(const std::string& filename) {
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u32 magic;
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this->filename = filename;
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file.Seek(0x100, SEEK_SET);
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is_loaded = false;
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if (1 != file.ReadArray<u32>(&magic, 1))
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is_compressed = false;
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return FileType::Error;
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entry_point = 0;
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ncch_offset = 0;
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if (MakeMagic('N', 'C', 'S', 'D') == magic)
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exefs_offset = 0;
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return FileType::CCI;
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if (MakeMagic('N', 'C', 'C', 'H') == magic)
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return FileType::CXI;
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return FileType::Error;
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}
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}
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/// AppLoader_NCCH destructor
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AppLoader_NCCH::~AppLoader_NCCH() {
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}
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/**
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* Loads .code section into memory for booting
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* @return ResultStatus result of function
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*/
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ResultStatus AppLoader_NCCH::LoadExec() const {
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ResultStatus AppLoader_NCCH::LoadExec() const {
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if (!is_loaded)
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if (!is_loaded)
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return ResultStatus::ErrorNotLoaded;
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return ResultStatus::ErrorNotLoaded;
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@ -130,94 +122,81 @@ ResultStatus AppLoader_NCCH::LoadExec() const {
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return ResultStatus::Error;
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return ResultStatus::Error;
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}
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}
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/**
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* Reads an application ExeFS section of an NCCH file into AppLoader (e.g. .code, .logo, etc.)
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* @param name Name of section to read out of NCCH file
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* @param buffer Vector to read data into
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* @return ResultStatus result of function
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*/
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ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>& buffer) const {
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ResultStatus AppLoader_NCCH::LoadSectionExeFS(const char* name, std::vector<u8>& buffer) const {
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// Iterate through the ExeFs archive until we find the .code file...
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if (!file->IsOpen())
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FileUtil::IOFile file(filename, "rb");
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return ResultStatus::Error;
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if (file.IsOpen()) {
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LOG_DEBUG(Loader, "%d sections:", kMaxSections);
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LOG_DEBUG(Loader, "%d sections:", kMaxSections);
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for (int i = 0; i < kMaxSections; i++) {
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// Iterate through the ExeFs archive until we find the .code file...
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for (unsigned section_number = 0; section_number < kMaxSections; section_number++) {
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const auto& section = exefs_header.section[section_number];
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// Load the specified section...
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// Load the specified section...
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if (strcmp((const char*)exefs_header.section[i].name, name) == 0) {
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if (strcmp(section.name, name) == 0) {
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LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", i,
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LOG_DEBUG(Loader, "%d - offset: 0x%08X, size: 0x%08X, name: %s", section_number,
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exefs_header.section[i].offset, exefs_header.section[i].size,
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section.offset, section.size, section.name);
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exefs_header.section[i].name);
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s64 section_offset = (exefs_header.section[i].offset + exefs_offset +
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s64 section_offset = (section.offset + exefs_offset + sizeof(ExeFs_Header) + ncch_offset);
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sizeof(ExeFs_Header)+ncch_offset);
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file->Seek(section_offset, SEEK_SET);
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file.Seek(section_offset, 0);
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// Section is compressed...
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if (is_compressed) {
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if (i == 0 && is_compressed) {
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// Section is compressed, read compressed .code section...
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// Read compressed .code section...
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std::unique_ptr<u8[]> temp_buffer;
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std::unique_ptr<u8[]> temp_buffer;
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try {
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try {
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temp_buffer.reset(new u8[exefs_header.section[i].size]);
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temp_buffer.reset(new u8[section.size]);
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} catch (std::bad_alloc&) {
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} catch (std::bad_alloc&) {
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return ResultStatus::ErrorMemoryAllocationFailed;
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return ResultStatus::ErrorMemoryAllocationFailed;
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}
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}
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file.ReadBytes(&temp_buffer[0], exefs_header.section[i].size);
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if (file->ReadBytes(&temp_buffer[0], section.size) != section.size)
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return ResultStatus::Error;
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// Decompress .code section...
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// Decompress .code section...
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u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0],
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u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0], section.size);
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exefs_header.section[i].size);
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buffer.resize(decompressed_size);
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buffer.resize(decompressed_size);
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if (!LZSS_Decompress(&temp_buffer[0], exefs_header.section[i].size, &buffer[0],
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if (!LZSS_Decompress(&temp_buffer[0], section.size, &buffer[0], decompressed_size))
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decompressed_size)) {
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return ResultStatus::ErrorInvalidFormat;
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return ResultStatus::ErrorInvalidFormat;
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}
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} else {
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// Section is uncompressed...
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// Section is uncompressed...
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}
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buffer.resize(section.size);
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else {
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if (file->ReadBytes(&buffer[0], section.size) != section.size)
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buffer.resize(exefs_header.section[i].size);
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return ResultStatus::Error;
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file.ReadBytes(&buffer[0], exefs_header.section[i].size);
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}
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}
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return ResultStatus::Success;
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return ResultStatus::Success;
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}
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}
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}
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}
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} else {
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LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
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return ResultStatus::Error;
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}
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return ResultStatus::ErrorNotUsed;
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return ResultStatus::ErrorNotUsed;
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}
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}
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/**
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* Loads an NCCH file (e.g. from a CCI, or the first NCCH in a CXI)
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* @param error_string Pointer to string to put error message if an error has occurred
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* @todo Move NCSD parsing out of here and create a separate function for loading these
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* @return True on success, otherwise false
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*/
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ResultStatus AppLoader_NCCH::Load() {
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ResultStatus AppLoader_NCCH::Load() {
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LOG_INFO(Loader, "Loading NCCH file %s...", filename.c_str());
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if (is_loaded)
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if (is_loaded)
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return ResultStatus::ErrorAlreadyLoaded;
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return ResultStatus::ErrorAlreadyLoaded;
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FileUtil::IOFile file(filename, "rb");
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if (!file->IsOpen())
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if (file.IsOpen()) {
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return ResultStatus::Error;
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file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
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// Reset read pointer in case this file has been read before.
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file->Seek(0, SEEK_SET);
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if (file->ReadBytes(&ncch_header, sizeof(NCCH_Header)) != sizeof(NCCH_Header))
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return ResultStatus::Error;
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// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
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// Skip NCSD header and load first NCCH (NCSD is just a container of NCCH files)...
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if (0 == memcmp(&ncch_header.magic, "NCSD", 4)) {
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if (MakeMagic('N', 'C', 'S', 'D') == ncch_header.magic) {
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LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
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LOG_WARNING(Loader, "Only loading the first (bootable) NCCH within the NCSD file!");
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|
ncch_offset = 0x4000;
|
|
|
|
ncch_offset = 0x4000;
|
|
|
|
file.Seek(ncch_offset, 0);
|
|
|
|
file->Seek(ncch_offset, SEEK_SET);
|
|
|
|
file.ReadBytes(&ncch_header, sizeof(NCCH_Header));
|
|
|
|
file->ReadBytes(&ncch_header, sizeof(NCCH_Header));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// Verify we are loading the correct file type...
|
|
|
|
// Verify we are loading the correct file type...
|
|
|
|
if (0 != memcmp(&ncch_header.magic, "NCCH", 4))
|
|
|
|
if (MakeMagic('N', 'C', 'C', 'H') != ncch_header.magic)
|
|
|
|
return ResultStatus::ErrorInvalidFormat;
|
|
|
|
return ResultStatus::ErrorInvalidFormat;
|
|
|
|
|
|
|
|
|
|
|
|
// Read ExHeader...
|
|
|
|
// Read ExHeader...
|
|
|
|
|
|
|
|
|
|
|
|
file.ReadBytes(&exheader_header, sizeof(ExHeader_Header));
|
|
|
|
if (file->ReadBytes(&exheader_header, sizeof(ExHeader_Header)) != sizeof(ExHeader_Header))
|
|
|
|
|
|
|
|
return ResultStatus::Error;
|
|
|
|
|
|
|
|
|
|
|
|
is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
|
|
|
|
is_compressed = (exheader_header.codeset_info.flags.flag & 1) == 1;
|
|
|
|
entry_point = exheader_header.codeset_info.text.address;
|
|
|
|
entry_point = exheader_header.codeset_info.text.address;
|
|
|
@ -234,64 +213,35 @@ ResultStatus AppLoader_NCCH::Load() {
|
|
|
|
LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset);
|
|
|
|
LOG_DEBUG(Loader, "ExeFS offset: 0x%08X", exefs_offset);
|
|
|
|
LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size);
|
|
|
|
LOG_DEBUG(Loader, "ExeFS size: 0x%08X", exefs_size);
|
|
|
|
|
|
|
|
|
|
|
|
file.Seek(exefs_offset + ncch_offset, 0);
|
|
|
|
file->Seek(exefs_offset + ncch_offset, SEEK_SET);
|
|
|
|
file.ReadBytes(&exefs_header, sizeof(ExeFs_Header));
|
|
|
|
if (file->ReadBytes(&exefs_header, sizeof(ExeFs_Header)) != sizeof(ExeFs_Header))
|
|
|
|
|
|
|
|
return ResultStatus::Error;
|
|
|
|
|
|
|
|
|
|
|
|
is_loaded = true; // Set state to loaded
|
|
|
|
is_loaded = true; // Set state to loaded
|
|
|
|
|
|
|
|
|
|
|
|
LoadExec(); // Load the executable into memory for booting
|
|
|
|
return LoadExec(); // Load the executable into memory for booting
|
|
|
|
|
|
|
|
|
|
|
|
return ResultStatus::Success;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return ResultStatus::Error;
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
|
|
* Get the code (typically .code section) of the application
|
|
|
|
|
|
|
|
* @param buffer Reference to buffer to store data
|
|
|
|
|
|
|
|
* @return ResultStatus result of function
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
ResultStatus AppLoader_NCCH::ReadCode(std::vector<u8>& buffer) const {
|
|
|
|
ResultStatus AppLoader_NCCH::ReadCode(std::vector<u8>& buffer) const {
|
|
|
|
return LoadSectionExeFS(".code", buffer);
|
|
|
|
return LoadSectionExeFS(".code", buffer);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
|
|
* Get the icon (typically icon section) of the application
|
|
|
|
|
|
|
|
* @param buffer Reference to buffer to store data
|
|
|
|
|
|
|
|
* @return ResultStatus result of function
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
ResultStatus AppLoader_NCCH::ReadIcon(std::vector<u8>& buffer) const {
|
|
|
|
ResultStatus AppLoader_NCCH::ReadIcon(std::vector<u8>& buffer) const {
|
|
|
|
return LoadSectionExeFS("icon", buffer);
|
|
|
|
return LoadSectionExeFS("icon", buffer);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
|
|
* Get the banner (typically banner section) of the application
|
|
|
|
|
|
|
|
* @param buffer Reference to buffer to store data
|
|
|
|
|
|
|
|
* @return ResultStatus result of function
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
ResultStatus AppLoader_NCCH::ReadBanner(std::vector<u8>& buffer) const {
|
|
|
|
ResultStatus AppLoader_NCCH::ReadBanner(std::vector<u8>& buffer) const {
|
|
|
|
return LoadSectionExeFS("banner", buffer);
|
|
|
|
return LoadSectionExeFS("banner", buffer);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
|
|
* Get the logo (typically logo section) of the application
|
|
|
|
|
|
|
|
* @param buffer Reference to buffer to store data
|
|
|
|
|
|
|
|
* @return ResultStatus result of function
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
ResultStatus AppLoader_NCCH::ReadLogo(std::vector<u8>& buffer) const {
|
|
|
|
ResultStatus AppLoader_NCCH::ReadLogo(std::vector<u8>& buffer) const {
|
|
|
|
return LoadSectionExeFS("logo", buffer);
|
|
|
|
return LoadSectionExeFS("logo", buffer);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
|
|
* Get the RomFS of the application
|
|
|
|
|
|
|
|
* @param buffer Reference to buffer to store data
|
|
|
|
|
|
|
|
* @return ResultStatus result of function
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
|
|
|
|
ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
|
|
|
|
FileUtil::IOFile file(filename, "rb");
|
|
|
|
if (!file->IsOpen())
|
|
|
|
if (file.IsOpen()) {
|
|
|
|
return ResultStatus::Error;
|
|
|
|
|
|
|
|
|
|
|
|
// Check if the NCCH has a RomFS...
|
|
|
|
// Check if the NCCH has a RomFS...
|
|
|
|
if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) {
|
|
|
|
if (ncch_header.romfs_offset != 0 && ncch_header.romfs_size != 0) {
|
|
|
|
u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
|
|
|
|
u32 romfs_offset = ncch_offset + (ncch_header.romfs_offset * kBlockSize) + 0x1000;
|
|
|
@ -302,17 +252,14 @@ ResultStatus AppLoader_NCCH::ReadRomFS(std::vector<u8>& buffer) const {
|
|
|
|
|
|
|
|
|
|
|
|
buffer.resize(romfs_size);
|
|
|
|
buffer.resize(romfs_size);
|
|
|
|
|
|
|
|
|
|
|
|
file.Seek(romfs_offset, 0);
|
|
|
|
file->Seek(romfs_offset, SEEK_SET);
|
|
|
|
file.ReadBytes(&buffer[0], romfs_size);
|
|
|
|
if (file->ReadBytes(&buffer[0], romfs_size) != romfs_size)
|
|
|
|
|
|
|
|
return ResultStatus::Error;
|
|
|
|
|
|
|
|
|
|
|
|
return ResultStatus::Success;
|
|
|
|
return ResultStatus::Success;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
LOG_DEBUG(Loader, "NCCH has no RomFS");
|
|
|
|
LOG_DEBUG(Loader, "NCCH has no RomFS");
|
|
|
|
return ResultStatus::ErrorNotUsed;
|
|
|
|
return ResultStatus::ErrorNotUsed;
|
|
|
|
} else {
|
|
|
|
|
|
|
|
LOG_ERROR(Loader, "Unable to read file %s!", filename.c_str());
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return ResultStatus::Error;
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
u64 AppLoader_NCCH::GetProgramId() const {
|
|
|
|
u64 AppLoader_NCCH::GetProgramId() const {
|
|
|
|