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bktr: Fix missing includes and optimize style

This commit is contained in:
Zach Hilman 2018-08-26 10:53:31 -04:00
parent f92b3512e0
commit 9664ce255d
12 changed files with 108 additions and 102 deletions
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126
src/core/file_sys/nca_patch.cpp
View File

@ -17,7 +17,7 @@ BKTR::BKTR(VirtualFile base_romfs_, VirtualFile bktr_romfs_, RelocationBlock rel
relocation(relocation_), relocation_buckets(std::move(relocation_buckets_)),
subsection(subsection_), subsection_buckets(std::move(subsection_buckets_)),
encrypted(is_encrypted_), key(key_), base_offset(base_offset_), ivfc_offset(ivfc_offset_),
section_ctr(std::move(section_ctr_)) {
section_ctr(section_ctr_) {
for (size_t i = 0; i < relocation.number_buckets - 1; ++i) {
relocation_buckets[i].entries.push_back({relocation.base_offsets[i + 1], 0, 0});
}
@ -31,6 +31,8 @@ BKTR::BKTR(VirtualFile base_romfs_, VirtualFile bktr_romfs_, RelocationBlock rel
relocation_buckets.back().entries.push_back({relocation.size, 0, 0});
}
BKTR::~BKTR() = default;
size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
// Read out of bounds.
if (offset >= relocation.size)
@ -41,68 +43,66 @@ size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
const auto next_relocation = GetNextRelocationEntry(offset);
if (offset + length <= next_relocation.address_patch) {
if (bktr_read) {
if (!encrypted) {
return bktr_romfs->Read(data, length, section_offset);
}
const auto subsection = GetSubsectionEntry(section_offset);
Core::Crypto::AESCipher<Core::Crypto::Key128> cipher(key, Core::Crypto::Mode::CTR);
// Calculate AES IV
std::vector<u8> iv(16);
auto subsection_ctr = subsection.ctr;
auto offset_iv = section_offset + base_offset;
for (u8 i = 0; i < 8; ++i)
iv[i] = section_ctr[0x8 - i - 1];
offset_iv >>= 4;
for (size_t i = 0; i < 8; ++i) {
iv[0xF - i] = static_cast<u8>(offset_iv & 0xFF);
offset_iv >>= 8;
}
for (size_t i = 0; i < 4; ++i) {
iv[0x7 - i] = static_cast<u8>(subsection_ctr & 0xFF);
subsection_ctr >>= 8;
}
cipher.SetIV(iv);
const auto next_subsection = GetNextSubsectionEntry(section_offset);
if (section_offset + length <= next_subsection.address_patch) {
const auto block_offset = section_offset & 0xF;
if (block_offset != 0) {
auto block = bktr_romfs->ReadBytes(0x10, section_offset & ~0xF);
cipher.Transcode(block.data(), block.size(), block.data(),
Core::Crypto::Op::Decrypt);
if (length + block_offset < 0x10) {
std::memcpy(data, block.data() + block_offset,
std::min(length, block.size()));
return std::min(length, block.size());
}
const auto read = 0x10 - block_offset;
std::memcpy(data, block.data() + block_offset, read);
return read + Read(data + read, length - read, offset + read);
}
const auto raw_read = bktr_romfs->Read(data, length, section_offset);
cipher.Transcode(data, raw_read, data, Core::Crypto::Op::Decrypt);
return raw_read;
} else {
const u64 partition = next_subsection.address_patch - section_offset;
return Read(data, partition, offset) +
Read(data + partition, length - partition, offset + partition);
}
} else {
ASSERT(section_offset > ivfc_offset, "Offset calculation negative.");
return base_romfs->Read(data, length, section_offset);
}
} else {
if (offset + length >= next_relocation.address_patch) {
const u64 partition = next_relocation.address_patch - offset;
return Read(data, partition, offset) +
Read(data + partition, length - partition, offset + partition);
}
if (!bktr_read) {
ASSERT_MSG(section_offset > ivfc_offset, "Offset calculation negative.");
return base_romfs->Read(data, length, section_offset);
}
if (!encrypted) {
return bktr_romfs->Read(data, length, section_offset);
}
const auto subsection = GetSubsectionEntry(section_offset);
Core::Crypto::AESCipher<Core::Crypto::Key128> cipher(key, Core::Crypto::Mode::CTR);
// Calculate AES IV
std::vector<u8> iv(16);
auto subsection_ctr = subsection.ctr;
auto offset_iv = section_offset + base_offset;
for (size_t i = 0; i < section_ctr.size(); ++i)
iv[i] = section_ctr[0x8 - i - 1];
offset_iv >>= 4;
for (size_t i = 0; i < sizeof(u64); ++i) {
iv[0xF - i] = static_cast<u8>(offset_iv & 0xFF);
offset_iv >>= 8;
}
for (size_t i = 0; i < sizeof(u32); ++i) {
iv[0x7 - i] = static_cast<u8>(subsection_ctr & 0xFF);
subsection_ctr >>= 8;
}
cipher.SetIV(iv);
const auto next_subsection = GetNextSubsectionEntry(section_offset);
if (section_offset + length > next_subsection.address_patch) {
const u64 partition = next_subsection.address_patch - section_offset;
return Read(data, partition, offset) +
Read(data + partition, length - partition, offset + partition);
}
const auto block_offset = section_offset & 0xF;
if (block_offset != 0) {
auto block = bktr_romfs->ReadBytes(0x10, section_offset & ~0xF);
cipher.Transcode(block.data(), block.size(), block.data(), Core::Crypto::Op::Decrypt);
if (length + block_offset < 0x10) {
std::memcpy(data, block.data() + block_offset, std::min(length, block.size()));
return std::min(length, block.size());
}
const auto read = 0x10 - block_offset;
std::memcpy(data, block.data() + block_offset, read);
return read + Read(data + read, length - read, offset + read);
}
const auto raw_read = bktr_romfs->Read(data, length, section_offset);
cipher.Transcode(data, raw_read, data, Core::Crypto::Op::Decrypt);
return raw_read;
}
template <bool Subsection, typename BlockType, typename BucketType>
@ -116,11 +116,9 @@ std::pair<size_t, size_t> BKTR::SearchBucketEntry(u64 offset, BlockType block,
ASSERT_MSG(offset <= block.size, "Offset is out of bounds in BKTR relocation block.");
}
size_t bucket_id = 0;
for (size_t i = 1; i < block.number_buckets; ++i) {
if (block.base_offsets[i] <= offset)
++bucket_id;
}
size_t bucket_id = std::count_if(block.base_offsets.begin() + 1,
block.base_offsets.begin() + block.number_buckets,
[&offset](u64 base_offset) { return base_offset < offset; });
const auto bucket = buckets[bucket_id];

5
src/core/file_sys/nca_patch.h
View File

@ -4,9 +4,11 @@
#pragma once
#include <array>
#include <vector>
#include <common/common_funcs.h>
#include "core/crypto/key_manager.h"
#include "core/file_sys/romfs.h"
#include "core/loader/loader.h"
namespace FileSys {
@ -91,6 +93,7 @@ public:
std::vector<RelocationBucket> relocation_buckets, SubsectionBlock subsection,
std::vector<SubsectionBucket> subsection_buckets, bool is_encrypted,
Core::Crypto::Key128 key, u64 base_offset, u64 ivfc_offset, std::array<u8, 8> section_ctr);
~BKTR() override;
size_t Read(u8* data, size_t length, size_t offset) const override;

33
src/core/file_sys/patch_manager.cpp
View File

@ -8,24 +8,19 @@
namespace FileSys {
union TitleVersion {
u32 version;
constexpr u64 SINGLE_BYTE_MODULUS = 0x100;
struct {
u8 v_revision;
u8 v_micro;
u8 v_minor;
u8 v_major;
};
};
std::string FormatTitleVersion(u32 version, TitleVersionFormat format) {
std::array<u8, sizeof(u32)> bytes{};
bytes[0] = version % SINGLE_BYTE_MODULUS;
for (size_t i = 1; i < bytes.size(); ++i) {
version /= SINGLE_BYTE_MODULUS;
bytes[i] = version % SINGLE_BYTE_MODULUS;
}
std::string FormatTitleVersion(u32 version_, bool full) {
TitleVersion ver{};
ver.version = version_;
if (full)
return fmt::format("v{}.{}.{}.{}", ver.v_major, ver.v_minor, ver.v_minor, ver.v_revision);
return fmt::format("v{}.{}.{}", ver.v_major, ver.v_minor, ver.v_micro);
if (format == TitleVersionFormat::FourElements)
return fmt::format("v{}.{}.{}.{}", bytes[3], bytes[2], bytes[1], bytes[0]);
return fmt::format("v{}.{}.{}", bytes[3], bytes[2], bytes[1]);
}
constexpr std::array<const char*, 1> PATCH_TYPE_NAMES{
@ -49,8 +44,9 @@ VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
const auto update = installed->GetEntry(update_tid, ContentRecordType::Program);
if (update != nullptr) {
if (update->GetStatus() == Loader::ResultStatus::ErrorMissingBKTRBaseRomFS &&
update->GetExeFS() != nullptr)
update->GetExeFS() != nullptr) {
exefs = update->GetExeFS();
}
}
return exefs;
@ -81,8 +77,9 @@ std::map<PatchType, u32> PatchManager::GetPatchVersionNames() const {
const auto update_tid = GetUpdateTitleID(title_id);
const auto update_version = installed->GetEntryVersion(update_tid);
if (update_version != boost::none &&
installed->HasEntry(update_tid, ContentRecordType::Program))
installed->HasEntry(update_tid, ContentRecordType::Program)) {
out[PatchType::Update] = update_version.get();
}
return out;
}

9
src/core/file_sys/patch_manager.h
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@ -5,12 +5,19 @@
#pragma once
#include <map>
#include <string>
#include "common/common_types.h"
#include "core/file_sys/vfs.h"
namespace FileSys {
std::string FormatTitleVersion(u32 version, bool full = false);
enum class TitleVersionFormat : u8 {
ThreeElements, ///< vX.Y.Z
FourElements, ///< vX.Y.Z.W
};
std::string FormatTitleVersion(u32 version,
TitleVersionFormat format = TitleVersionFormat::ThreeElements);
enum class PatchType {
Update,

21
src/core/file_sys/registered_cache.cpp
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@ -281,10 +281,14 @@ VirtualFile RegisteredCache::GetEntryUnparsed(RegisteredCacheEntry entry) const
}
boost::optional<u32> RegisteredCache::GetEntryVersion(u64 title_id) const {
if (meta.find(title_id) != meta.end())
return meta.at(title_id).GetTitleVersion();
if (yuzu_meta.find(title_id) != yuzu_meta.end())
return yuzu_meta.at(title_id).GetTitleVersion();
const auto meta_iter = meta.find(title_id);
if (meta_iter != meta.end())
return meta_iter->second.GetTitleVersion();
const auto yuzu_meta_iter = yuzu_meta.find(title_id);
if (yuzu_meta_iter != yuzu_meta.end())
return yuzu_meta_iter->second.GetTitleVersion();
return boost::none;
}
@ -516,12 +520,9 @@ void RegisteredCacheUnion::Refresh() {
}
bool RegisteredCacheUnion::HasEntry(u64 title_id, ContentRecordType type) const {
for (const auto& c : caches) {
if (c->HasEntry(title_id, type))
return true;
}
return false;
return std::any_of(caches.begin(), caches.end(), [title_id, type](const auto& cache) {
return cache->HasEntry(title_id, type);
});
}
bool RegisteredCacheUnion::HasEntry(RegisteredCacheEntry entry) const {

2
src/core/file_sys/registered_cache.h
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@ -43,7 +43,7 @@ struct RegisteredCacheEntry {
std::string DebugInfo() const;
};
constexpr inline u64 GetUpdateTitleID(u64 base_title_id) {
constexpr u64 GetUpdateTitleID(u64 base_title_id) {
return base_title_id | 0x800;
}

2
src/core/loader/deconstructed_rom_directory.cpp
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@ -189,7 +189,7 @@ ResultStatus AppLoader_DeconstructedRomDirectory::ReadTitle(std::string& title)
return ResultStatus::Success;
}
bool AppLoader_DeconstructedRomDirectory::IsRomFSUpdatable() {
bool AppLoader_DeconstructedRomDirectory::IsRomFSUpdatable() const {
return false;
}

2
src/core/loader/deconstructed_rom_directory.h
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@ -44,7 +44,7 @@ public:
ResultStatus ReadIcon(std::vector<u8>& buffer) override;
ResultStatus ReadProgramId(u64& out_program_id) override;
ResultStatus ReadTitle(std::string& title) override;
bool IsRomFSUpdatable() override;
bool IsRomFSUpdatable() const override;
private:
FileSys::ProgramMetadata metadata;

2
src/core/loader/loader.h
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@ -210,7 +210,7 @@ public:
* the base game it should be set to false.
* @return bool whether or not updatable.
*/
virtual bool IsRomFSUpdatable() {
virtual bool IsRomFSUpdatable() const {
return true;
}

2
src/core/loader/nro.cpp
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@ -233,7 +233,7 @@ ResultStatus AppLoader_NRO::ReadTitle(std::string& title) {
return ResultStatus::Success;
}
bool AppLoader_NRO::IsRomFSUpdatable() {
bool AppLoader_NRO::IsRomFSUpdatable() const {
return false;
}

2
src/core/loader/nro.h
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@ -39,7 +39,7 @@ public:
ResultStatus ReadProgramId(u64& out_program_id) override;
ResultStatus ReadRomFS(FileSys::VirtualFile& dir) override;
ResultStatus ReadTitle(std::string& title) override;
bool IsRomFSUpdatable() override;
bool IsRomFSUpdatable() const override;
private:
bool LoadNro(FileSys::VirtualFile file, VAddr load_base);

4
src/yuzu/main.cpp
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@ -871,8 +871,8 @@ void GMainWindow::OnMenuInstallToNAND() {
const auto id = nca->GetStatus();
// Game updates necessary are missing base RomFS
if (nca->GetStatus() != Loader::ResultStatus::Success &&
nca->GetStatus() != Loader::ResultStatus::ErrorMissingBKTRBaseRomFS) {
if (id != Loader::ResultStatus::Success &&
id != Loader::ResultStatus::ErrorMissingBKTRBaseRomFS) {
failed();
return;
}