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fix integrity store crash on new updates (#177)

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credit: Zeuslota

Signed-off-by: crueter <swurl@swurl.xyz>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/177
Co-authored-by: crueter <swurl@swurl.xyz>
Co-committed-by: crueter <swurl@swurl.xyz>
This commit is contained in:
crueter 2025-06-10 21:03:57 +00:00 • committed by crueter
parent 5b361338c1
commit c6a87a661a
1 changed files with 30 additions and 9 deletions
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39
src/core/file_sys/fssystem/fssystem_integrity_verification_storage.cpp
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@ -1,18 +1,26 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "common/alignment.h"
#include "core/file_sys/fssystem/fssystem_integrity_verification_storage.h"
#include "common/alignment.h"
namespace FileSys {
constexpr inline u32 ILog2(u32 val) {
constexpr inline u32 ILog2(u32 val)
{
ASSERT(val > 0);
return static_cast<u32>((sizeof(u32) * 8) - 1 - std::countl_zero<u32>(val));
}
void IntegrityVerificationStorage::Initialize(VirtualFile hs, VirtualFile ds, s64 verif_block_size,
s64 upper_layer_verif_block_size, bool is_real_data) {
void IntegrityVerificationStorage::Initialize(VirtualFile hs,
VirtualFile ds,
s64 verif_block_size,
s64 upper_layer_verif_block_size,
bool is_real_data)
{
// Validate preconditions.
ASSERT(verif_block_size >= HashSize);
@ -32,22 +40,28 @@ void IntegrityVerificationStorage::Initialize(VirtualFile hs, VirtualFile ds, s6
ASSERT(m_upper_layer_verification_block_size == 1ll << m_upper_layer_verification_block_order);
// Validate sizes.
{
if (m_data_storage != nullptr) {
s64 hash_size = m_hash_storage->GetSize();
s64 data_size = m_data_storage->GetSize();
ASSERT(((hash_size / HashSize) * m_verification_block_size) >= data_size);
} else {
LOG_ERROR(Loader,
"Failed to initialize integrity verification store. Game, update, or DLC may not "
"work.");
}
// Set data.
m_is_real_data = is_real_data;
}
void IntegrityVerificationStorage::Finalize() {
void IntegrityVerificationStorage::Finalize()
{
m_hash_storage = VirtualFile();
m_data_storage = VirtualFile();
}
size_t IntegrityVerificationStorage::Read(u8* buffer, size_t size, size_t offset) const {
size_t IntegrityVerificationStorage::Read(u8* buffer, size_t size, size_t offset) const
{
// Succeed if zero size.
if (size == 0) {
return size;
@ -56,7 +70,13 @@ size_t IntegrityVerificationStorage::Read(u8* buffer, size_t size, size_t offset
// Validate arguments.
ASSERT(buffer != nullptr);
// Validate the offset.
if (m_data_storage == nullptr) {
LOG_ERROR(Loader,
"Integrity verification store failed read operation. Game, update or DLC may not "
"work.");
return 0;
}
s64 data_size = m_data_storage->GetSize();
ASSERT(offset <= static_cast<size_t>(data_size));
@ -84,7 +104,8 @@ size_t IntegrityVerificationStorage::Read(u8* buffer, size_t size, size_t offset
return m_data_storage->Read(buffer, read_size, offset);
}
size_t IntegrityVerificationStorage::GetSize() const {
size_t IntegrityVerificationStorage::GetSize() const
{
return m_data_storage->GetSize();
}