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VolumeVerifier: Ignore invalid partitions in GetBiggestReferencedOffset

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Otherwise GetBiggestReferencedOffset might treat garbage data as a valid
large offset, making Dolphin incorrectly say that the disc is too small.
This commit is contained in:
JosJuice
2020-02-09 19:05:44 +01:00
parent 166e86b97f
commit 829f3cff6f
2 changed files with 21 additions and 17 deletions
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32
Source/Core/DiscIO/VolumeVerifier.cpp
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@ -391,27 +391,29 @@ void VolumeVerifier::Start()
(m_volume.GetVolumeType() == Platform::WiiDisc && !m_volume.IsEncryptedAndHashed()) ||
IsDebugSigned();
CheckPartitions();
if (m_volume.GetVolumeType() == Platform::WiiWAD)
CheckCorrectlySigned(PARTITION_NONE, Common::GetStringT("This title is not correctly signed."));
CheckDiscSize();
CheckDiscSize(CheckPartitions());
CheckMisc();
SetUpHashing();
}
void VolumeVerifier::CheckPartitions()
std::vector<Partition> VolumeVerifier::CheckPartitions()
{
if (m_volume.GetVolumeType() == Platform::WiiWAD)
return {};
const std::vector<Partition> partitions = m_volume.GetPartitions();
if (partitions.empty())
{
if (m_volume.GetVolumeType() != Platform::WiiWAD &&
!m_volume.GetFileSystem(m_volume.GetGamePartition()))
if (!m_volume.GetFileSystem(m_volume.GetGamePartition()))
{
AddProblem(Severity::High,
Common::GetStringT("The filesystem is invalid or could not be read."));
return {};
}
return;
return {m_volume.GetGamePartition()};
}
std::optional<u32> partitions_in_first_table = m_volume.ReadSwapped<u32>(0x40000, PARTITION_NONE);
@ -484,8 +486,14 @@ void VolumeVerifier::CheckPartitions()
}
}
std::vector<Partition> valid_partitions;
for (const Partition& partition : partitions)
CheckPartition(partition);
{
if (CheckPartition(partition))
valid_partitions.push_back(partition);
}
return valid_partitions;
}
bool VolumeVerifier::CheckPartition(const Partition& partition)
@ -720,12 +728,12 @@ bool VolumeVerifier::ShouldBeDualLayer() const
std::string_view(m_volume.GetGameID()));
}
void VolumeVerifier::CheckDiscSize()
void VolumeVerifier::CheckDiscSize(const std::vector<Partition>& partitions)
{
if (!IsDisc(m_volume.GetVolumeType()))
return;
m_biggest_referenced_offset = GetBiggestReferencedOffset();
m_biggest_referenced_offset = GetBiggestReferencedOffset(partitions);
if (ShouldBeDualLayer() && m_biggest_referenced_offset <= SL_DVD_R_SIZE)
{
AddProblem(Severity::Medium,
@ -781,12 +789,8 @@ void VolumeVerifier::CheckDiscSize()
}
}
u64 VolumeVerifier::GetBiggestReferencedOffset() const
u64 VolumeVerifier::GetBiggestReferencedOffset(const std::vector<Partition>& partitions) const
{
std::vector<Partition> partitions = m_volume.GetPartitions();
if (partitions.empty())
partitions.emplace_back(m_volume.GetGamePartition());
const u64 disc_header_size = m_volume.GetVolumeType() == Platform::GameCubeDisc ? 0x460 : 0x50000;
u64 biggest_offset = disc_header_size;
for (const Partition& partition : partitions)