DiscScrubber: Make struct and variable names conformant to the coding style
This commit is contained in:
Lioncash
parent
4a9bc2340b
commit
5b1aae0cbf
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@ -27,14 +27,13 @@ DiscScrubber::~DiscScrubber() = default;
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bool DiscScrubber::SetupScrub(const std::string& filename, int block_size)
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{
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bool success = true;
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m_Filename = filename;
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m_BlockSize = block_size;
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m_filename = filename;
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m_block_size = block_size;
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if (CLUSTER_SIZE % m_BlockSize != 0)
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if (CLUSTER_SIZE % m_block_size != 0)
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{
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ERROR_LOG(DISCIO, "Block size %i is not a factor of 0x8000, scrubbing not possible",
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m_BlockSize);
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m_block_size);
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return false;
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}
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@ -42,9 +41,9 @@ bool DiscScrubber::SetupScrub(const std::string& filename, int block_size)
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if (!m_disc)
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return false;
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m_FileSize = m_disc->GetSize();
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m_file_size = m_disc->GetSize();
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u32 numClusters = (u32)(m_FileSize / CLUSTER_SIZE);
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u32 numClusters = (u32)(m_file_size / CLUSTER_SIZE);
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// Warn if not DVD5 or DVD9 size
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if (numClusters != 0x23048 && numClusters != 0x46090)
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@ -54,53 +53,53 @@ bool DiscScrubber::SetupScrub(const std::string& filename, int block_size)
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}
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// Table of free blocks
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m_FreeTable.resize(numClusters, 1);
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m_free_table.resize(numClusters, 1);
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// Fill out table of free blocks
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success = ParseDisc();
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const bool success = ParseDisc();
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// Done with it; need it closed for the next part
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m_disc.reset();
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m_BlockCount = 0;
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m_block_count = 0;
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m_isScrubbing = success;
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m_is_scrubbing = success;
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return success;
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}
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size_t DiscScrubber::GetNextBlock(File::IOFile& in, u8* buffer)
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{
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u64 CurrentOffset = m_BlockCount * m_BlockSize;
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u64 i = CurrentOffset / CLUSTER_SIZE;
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const u64 current_offset = m_block_count * m_block_size;
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const u64 i = current_offset / CLUSTER_SIZE;
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size_t ReadBytes = 0;
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if (m_isScrubbing && m_FreeTable[i])
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size_t read_bytes = 0;
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if (m_is_scrubbing && m_free_table[i])
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{
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DEBUG_LOG(DISCIO, "Freeing 0x%016" PRIx64, CurrentOffset);
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std::fill(buffer, buffer + m_BlockSize, 0x00);
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in.Seek(m_BlockSize, SEEK_CUR);
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ReadBytes = m_BlockSize;
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DEBUG_LOG(DISCIO, "Freeing 0x%016" PRIx64, current_offset);
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std::fill(buffer, buffer + m_block_size, 0x00);
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in.Seek(m_block_size, SEEK_CUR);
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read_bytes = m_block_size;
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}
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else
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{
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DEBUG_LOG(DISCIO, "Used 0x%016" PRIx64, CurrentOffset);
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in.ReadArray(buffer, m_BlockSize, &ReadBytes);
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DEBUG_LOG(DISCIO, "Used 0x%016" PRIx64, current_offset);
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in.ReadArray(buffer, m_block_size, &read_bytes);
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}
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m_BlockCount++;
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return ReadBytes;
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m_block_count++;
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return read_bytes;
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}
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void DiscScrubber::MarkAsUsed(u64 _Offset, u64 _Size)
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void DiscScrubber::MarkAsUsed(u64 offset, u64 size)
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{
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u64 CurrentOffset = _Offset;
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u64 EndOffset = CurrentOffset + _Size;
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u64 current_offset = offset;
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const u64 end_offset = current_offset + size;
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DEBUG_LOG(DISCIO, "Marking 0x%016" PRIx64 " - 0x%016" PRIx64 " as used", _Offset, EndOffset);
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DEBUG_LOG(DISCIO, "Marking 0x%016" PRIx64 " - 0x%016" PRIx64 " as used", offset, end_offset);
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while ((CurrentOffset < EndOffset) && (CurrentOffset < m_FileSize))
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while (current_offset < end_offset && current_offset < m_file_size)
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{
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m_FreeTable[CurrentOffset / CLUSTER_SIZE] = 0;
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CurrentOffset += CLUSTER_SIZE;
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m_free_table[current_offset / CLUSTER_SIZE] = 0;
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current_offset += CLUSTER_SIZE;
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}
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}
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@ -124,17 +123,17 @@ void DiscScrubber::MarkAsUsedE(u64 partition_data_offset, u64 offset, u64 size)
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}
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// Helper functions for reading the BE volume
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bool DiscScrubber::ReadFromVolume(u64 _Offset, u32& _Buffer, bool _Decrypt)
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bool DiscScrubber::ReadFromVolume(u64 offset, u32& buffer, bool decrypt)
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{
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return m_disc->ReadSwapped(_Offset, &_Buffer, _Decrypt);
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return m_disc->ReadSwapped(offset, &buffer, decrypt);
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}
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bool DiscScrubber::ReadFromVolume(u64 _Offset, u64& _Buffer, bool _Decrypt)
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bool DiscScrubber::ReadFromVolume(u64 offset, u64& buffer, bool decrypt)
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{
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u32 temp_buffer;
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if (!m_disc->ReadSwapped(_Offset, &temp_buffer, _Decrypt))
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if (!m_disc->ReadSwapped(offset, &temp_buffer, decrypt))
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return false;
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_Buffer = static_cast<u64>(temp_buffer) << 2;
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buffer = static_cast<u64>(temp_buffer) << 2;
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return true;
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}
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@ -145,49 +144,53 @@ bool DiscScrubber::ParseDisc()
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for (int x = 0; x < 4; x++)
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{
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if (!ReadFromVolume(0x40000 + (x * 8) + 0, PartitionGroup[x].numPartitions, false) ||
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!ReadFromVolume(0x40000 + (x * 8) + 4, PartitionGroup[x].PartitionsOffset, false))
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return false;
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// Read all partitions
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for (u32 i = 0; i < PartitionGroup[x].numPartitions; i++)
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if (!ReadFromVolume(0x40000 + (x * 8) + 0, m_partition_group[x].num_partitions, false) ||
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!ReadFromVolume(0x40000 + (x * 8) + 4, m_partition_group[x].partitions_offset, false))
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{
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SPartition Partition;
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Partition.GroupNumber = x;
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Partition.Number = i;
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if (!ReadFromVolume(PartitionGroup[x].PartitionsOffset + (i * 8) + 0, Partition.Offset,
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false) ||
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!ReadFromVolume(PartitionGroup[x].PartitionsOffset + (i * 8) + 4, Partition.Type,
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false) ||
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!ReadFromVolume(Partition.Offset + 0x2a4, Partition.Header.TMDSize, false) ||
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!ReadFromVolume(Partition.Offset + 0x2a8, Partition.Header.TMDOffset, false) ||
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!ReadFromVolume(Partition.Offset + 0x2ac, Partition.Header.CertChainSize, false) ||
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!ReadFromVolume(Partition.Offset + 0x2b0, Partition.Header.CertChainOffset, false) ||
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!ReadFromVolume(Partition.Offset + 0x2b4, Partition.Header.H3Offset, false) ||
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!ReadFromVolume(Partition.Offset + 0x2b8, Partition.Header.DataOffset, false) ||
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!ReadFromVolume(Partition.Offset + 0x2bc, Partition.Header.DataSize, false))
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return false;
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PartitionGroup[x].PartitionsVec.push_back(Partition);
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return false;
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}
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for (auto& rPartition : PartitionGroup[x].PartitionsVec)
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// Read all partitions
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for (u32 i = 0; i < m_partition_group[x].num_partitions; i++)
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{
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const SPartitionHeader& rHeader = rPartition.Header;
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Partition partition;
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MarkAsUsed(rPartition.Offset, 0x2c0);
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partition.group_number = x;
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partition.number = i;
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MarkAsUsed(rPartition.Offset + rHeader.TMDOffset, rHeader.TMDSize);
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MarkAsUsed(rPartition.Offset + rHeader.CertChainOffset, rHeader.CertChainSize);
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MarkAsUsed(rPartition.Offset + rHeader.H3Offset, 0x18000);
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if (!ReadFromVolume(m_partition_group[x].partitions_offset + (i * 8) + 0, partition.offset,
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false) ||
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!ReadFromVolume(m_partition_group[x].partitions_offset + (i * 8) + 4, partition.type,
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false) ||
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!ReadFromVolume(partition.offset + 0x2a4, partition.header.tmd_size, false) ||
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!ReadFromVolume(partition.offset + 0x2a8, partition.header.tmd_offset, false) ||
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!ReadFromVolume(partition.offset + 0x2ac, partition.header.cert_chain_size, false) ||
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!ReadFromVolume(partition.offset + 0x2b0, partition.header.cert_chain_offset, false) ||
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!ReadFromVolume(partition.offset + 0x2b4, partition.header.h3_offset, false) ||
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!ReadFromVolume(partition.offset + 0x2b8, partition.header.data_offset, false) ||
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!ReadFromVolume(partition.offset + 0x2bc, partition.header.data_size, false))
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{
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return false;
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}
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m_partition_group[x].partitions.push_back(partition);
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}
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for (auto& partition : m_partition_group[x].partitions)
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{
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const PartitionHeader& header = partition.header;
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MarkAsUsed(partition.offset, 0x2c0);
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MarkAsUsed(partition.offset + header.tmd_offset, header.tmd_size);
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MarkAsUsed(partition.offset + header.cert_chain_offset, header.cert_chain_size);
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MarkAsUsed(partition.offset + header.h3_offset, 0x18000);
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// This would mark the whole (encrypted) data area
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// we need to parse FST and other crap to find what's free within it!
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// MarkAsUsed(rPartition.Offset + rHeader.DataOffset, rHeader.DataSize);
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// MarkAsUsed(partition.offset + header.data_offset, header.data_size);
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// Parse Data! This is where the big gain is
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if (!ParsePartitionData(rPartition))
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if (!ParsePartitionData(partition))
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return false;
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}
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}
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@ -196,7 +199,7 @@ bool DiscScrubber::ParseDisc()
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}
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// Operations dealing with encrypted space are done here - the volume is swapped to allow this
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bool DiscScrubber::ParsePartitionData(SPartition& partition)
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bool DiscScrubber::ParsePartitionData(Partition& partition)
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{
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bool parsed_ok = true;
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@ -205,10 +208,10 @@ bool DiscScrubber::ParsePartitionData(SPartition& partition)
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m_disc.swap(old_volume);
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// Ready some stuff
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m_disc = CreateVolumeFromFilename(m_Filename, partition.GroupNumber, partition.Number);
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m_disc = CreateVolumeFromFilename(m_filename, partition.group_number, partition.number);
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if (m_disc == nullptr)
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{
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ERROR_LOG(DISCIO, "Failed to create volume from file %s", m_Filename.c_str());
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ERROR_LOG(DISCIO, "Failed to create volume from file %s", m_filename.c_str());
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m_disc.swap(old_volume);
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return false;
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}
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@ -217,38 +220,41 @@ bool DiscScrubber::ParsePartitionData(SPartition& partition)
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if (!filesystem)
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{
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ERROR_LOG(DISCIO, "Failed to create filesystem for group %d partition %u",
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partition.GroupNumber, partition.Number);
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partition.group_number, partition.number);
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parsed_ok = false;
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}
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else
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{
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// Mark things as used which are not in the filesystem
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// Header, Header Information, Apploader
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parsed_ok = parsed_ok && ReadFromVolume(0x2440 + 0x14, partition.Header.ApploaderSize, true);
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parsed_ok = parsed_ok && ReadFromVolume(0x2440 + 0x14, partition.header.apploader_size, true);
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parsed_ok =
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parsed_ok && ReadFromVolume(0x2440 + 0x18, partition.Header.ApploaderTrailerSize, true);
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MarkAsUsedE(partition.Offset + partition.Header.DataOffset, 0,
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0x2440 + partition.Header.ApploaderSize + partition.Header.ApploaderTrailerSize);
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parsed_ok && ReadFromVolume(0x2440 + 0x18, partition.header.apploader_trailer_size, true);
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MarkAsUsedE(partition.offset + partition.header.data_offset, 0,
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0x2440 + partition.header.apploader_size + partition.header.apploader_trailer_size);
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// DOL
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partition.Header.DOLOffset = filesystem->GetBootDOLOffset();
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partition.Header.DOLSize = filesystem->GetBootDOLSize(partition.Header.DOLOffset);
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parsed_ok = parsed_ok && partition.Header.DOLOffset && partition.Header.DOLSize;
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MarkAsUsedE(partition.Offset + partition.Header.DataOffset, partition.Header.DOLOffset,
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partition.Header.DOLSize);
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partition.header.dol_offset = filesystem->GetBootDOLOffset();
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partition.header.dol_size = filesystem->GetBootDOLSize(partition.header.dol_offset);
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parsed_ok = parsed_ok && partition.header.dol_offset && partition.header.dol_size;
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MarkAsUsedE(partition.offset + partition.header.data_offset, partition.header.dol_offset,
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partition.header.dol_size);
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// FST
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parsed_ok = parsed_ok && ReadFromVolume(0x424, partition.Header.FSTOffset, true);
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parsed_ok = parsed_ok && ReadFromVolume(0x428, partition.Header.FSTSize, true);
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MarkAsUsedE(partition.Offset + partition.Header.DataOffset, partition.Header.FSTOffset,
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partition.Header.FSTSize);
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parsed_ok = parsed_ok && ReadFromVolume(0x424, partition.header.fst_offset, true);
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parsed_ok = parsed_ok && ReadFromVolume(0x428, partition.header.fst_size, true);
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MarkAsUsedE(partition.offset + partition.header.data_offset, partition.header.fst_offset,
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partition.header.fst_size);
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// Go through the filesystem and mark entries as used
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for (SFileInfo file : filesystem->GetFileList())
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{
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DEBUG_LOG(DISCIO, "%s", file.m_FullPath.empty() ? "/" : file.m_FullPath.c_str());
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if ((file.m_NameOffset & 0x1000000) == 0)
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MarkAsUsedE(partition.Offset + partition.Header.DataOffset, file.m_Offset, file.m_FileSize);
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{
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MarkAsUsedE(partition.offset + partition.header.data_offset, file.m_Offset,
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file.m_FileSize);
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}
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}
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}
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@ -37,40 +37,40 @@ public:
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size_t GetNextBlock(File::IOFile& in, u8* buffer);
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private:
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struct SPartitionHeader final
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struct PartitionHeader final
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{
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u8* Ticket[0x2a4];
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u32 TMDSize;
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u64 TMDOffset;
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u32 CertChainSize;
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u64 CertChainOffset;
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u8* ticket[0x2a4];
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u32 tmd_size;
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u64 tmd_offset;
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u32 cert_chain_size;
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u64 cert_chain_offset;
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// H3Size is always 0x18000
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u64 H3Offset;
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u64 DataOffset;
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u64 DataSize;
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u64 h3_offset;
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u64 data_offset;
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u64 data_size;
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// TMD would be here
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u64 DOLOffset;
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u64 DOLSize;
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u64 FSTOffset;
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u64 FSTSize;
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u32 ApploaderSize;
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u32 ApploaderTrailerSize;
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u64 dol_offset;
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u64 dol_size;
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u64 fst_offset;
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u64 fst_size;
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u32 apploader_size;
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u32 apploader_trailer_size;
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};
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struct SPartition final
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struct Partition final
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{
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u32 GroupNumber;
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u32 Number;
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u64 Offset;
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u32 Type;
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SPartitionHeader Header;
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u32 group_number;
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u32 number;
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u64 offset;
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u32 type;
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PartitionHeader header;
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};
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struct SPartitionGroup final
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struct PartitionGroup final
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{
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u32 numPartitions;
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u64 PartitionsOffset;
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std::vector<SPartition> PartitionsVec;
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u32 num_partitions;
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u64 partitions_offset;
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std::vector<Partition> partitions;
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};
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void MarkAsUsed(u64 offset, u64 size);
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@ -78,18 +78,18 @@ private:
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bool ReadFromVolume(u64 offset, u32& buffer, bool decrypt);
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bool ReadFromVolume(u64 offset, u64& buffer, bool decrypt);
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bool ParseDisc();
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bool ParsePartitionData(SPartition& partition);
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bool ParsePartitionData(Partition& partition);
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std::string m_Filename;
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std::string m_filename;
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std::unique_ptr<IVolume> m_disc;
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std::array<SPartitionGroup, 4> PartitionGroup{};
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std::array<PartitionGroup, 4> m_partition_group{};
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std::vector<u8> m_FreeTable;
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u64 m_FileSize = 0;
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u64 m_BlockCount = 0;
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u32 m_BlockSize = 0;
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bool m_isScrubbing = false;
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std::vector<u8> m_free_table;
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u64 m_file_size = 0;
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u64 m_block_count = 0;
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u32 m_block_size = 0;
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bool m_is_scrubbing = false;
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};
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} // namespace DiscIO
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