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Code Issues 657 Packages Projects Releases 19 Wiki Activity

mark sector bad if edc fail

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This commit is contained in:
Rebecca Wallander
2026-03-24 21:34:37 +01:00
parent c1f703d8e7
commit b0e302e4a7
1 changed files with 30 additions and 12 deletions
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42
Aaru.Core/Devices/Dumping/Sbc/Ngcw.cs
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@@ -108,8 +108,9 @@ partial class Dump
return true;
}
if(_omniDriveNintendoSoftwareDescramble)
DescrambleNintendoLongBuffer(longBuffer, startSector, sectors);
if(_omniDriveNintendoSoftwareDescramble &&
!DescrambleNintendoLongBuffer(longBuffer, startSector, sectors))
return false;
if(_ngcwMediaType == MediaType.GOD)
return TransformGameCubeLongSectors(longBuffer, startSector, sectors, statuses);
@@ -453,9 +454,9 @@ partial class Dump
return false;
}
_ = _nintendoSectorDecoder.Scramble(raw, 0, out byte[] descrambled);
ErrorNumber errno = _nintendoSectorDecoder.Scramble(raw, 0, out byte[] descrambled);
if(descrambled == null)
if(errno != ErrorNumber.NoError || descrambled == null)
{
StoppingErrorMessage?.Invoke(Localization.Core.Unable_to_read_medium);
@@ -470,24 +471,33 @@ partial class Dump
return true;
}
void DescrambleNintendoLongBuffer(byte[] longBuffer, ulong startSector, uint sectors)
bool DescrambleNintendoLongBuffer(byte[] longBuffer, ulong startSector, uint sectors)
{
if(!_omniDriveNintendoSoftwareDescramble) return;
if(!_omniDriveNintendoSoftwareDescramble) return true;
for(uint i = 0; i < sectors; i++)
DescrambleNintendo2064At(longBuffer, (int)(i * NGCW_LONG_SECTOR_SIZE), startSector + i);
{
if(!DescrambleNintendo2064At(longBuffer, (int)(i * NGCW_LONG_SECTOR_SIZE), startSector + i))
return false;
}
return true;
}
void DescrambleNintendo2064At(byte[] buffer, int offset, ulong lba)
bool DescrambleNintendo2064At(byte[] buffer, int offset, ulong lba)
{
byte[] one = new byte[NGCW_LONG_SECTOR_SIZE];
Array.Copy(buffer, offset, one, 0, NGCW_LONG_SECTOR_SIZE);
byte key = lba < NGCW_SECTORS_PER_GROUP ? (byte)0 : (_nintendoDerivedDiscKey ?? (byte)0);
var error = _nintendoSectorDecoder.Scramble(one, key, out byte[] decoded);
ErrorNumber error = _nintendoSectorDecoder.Scramble(one, key, out byte[] decoded);
if(error != ErrorNumber.NoError)
return;
{
Array.Clear(buffer, offset, NGCW_LONG_SECTOR_SIZE);
return false;
}
if(decoded != null) Array.Copy(decoded, 0, buffer, offset, NGCW_LONG_SECTOR_SIZE);
@@ -497,6 +507,8 @@ partial class Dump
Array.Copy(decoded, 6, cprMai8, 0, 8);
_nintendoDerivedDiscKey = Sector.DeriveNintendoKey(cprMai8);
}
return true;
}
List<WiiPartition> ParseWiiPartitionsFromDevice(Reader scsiReader)
@@ -574,7 +586,10 @@ partial class Dump
return null;
if(_omniDriveNintendoSoftwareDescramble && rawSector.Length >= NGCW_LONG_SECTOR_SIZE)
DescrambleNintendo2064At(rawSector, 0, sector);
{
if(!DescrambleNintendo2064At(rawSector, 0, sector))
return null;
}
Array.Copy(rawSector, NGCW_PAYLOAD_OFFSET + sectorOff, result, read, chunk);
read += chunk;
@@ -592,7 +607,10 @@ partial class Dump
if(_omniDriveNintendoSoftwareDescramble && rawBuffer.Length >= count * NGCW_LONG_SECTOR_SIZE)
{
for(uint i = 0; i < count; i++)
DescrambleNintendo2064At(rawBuffer, (int)(i * NGCW_LONG_SECTOR_SIZE), startSector + i);
{
if(!DescrambleNintendo2064At(rawBuffer, (int)(i * NGCW_LONG_SECTOR_SIZE), startSector + i))
return null;
}
}
byte[] payload = new byte[count * NGCW_SECTOR_SIZE];