private ResultCode UnmapNroFromInfo(NroInfo info)
{
ulong textSize = (ulong)info.Executable.Text.Length;
ulong roSize = (ulong)info.Executable.Ro.Length;
ulong dataSize = (ulong)info.Executable.Data.Length;
ulong bssSize = (ulong)info.Executable.BssSize;
KernelResult result = KernelResult.Success;
if (info.Executable.BssSize != 0)
{
result = _owner.MemoryManager.UnmapProcessCodeMemory(
info.NroMappedAddress + textSize + roSize + dataSize,
info.Executable.BssAddress,
bssSize);
}
if (result == KernelResult.Success)
{
result = _owner.MemoryManager.UnmapProcessCodeMemory(
info.NroMappedAddress + textSize + roSize,
info.Executable.SourceAddress + textSize + roSize,
dataSize);
if (result == KernelResult.Success)
{
result = _owner.MemoryManager.UnmapProcessCodeMemory(
info.NroMappedAddress,
info.Executable.SourceAddress,
textSize + roSize);
}
}
return((ResultCode)result);
}
private ResultCode MapNro(KProcess process, NroInfo info, out ulong nroMappedAddress)
{
KMemoryManager memMgr = process.MemoryManager;
int retryCount = 0;
nroMappedAddress = 0;
while (retryCount++ < MaxMapRetries)
{
ResultCode result = MapCodeMemoryInProcess(process, info.NroAddress, info.NroSize, out nroMappedAddress);
if (result != ResultCode.Success)
{
return(result);
}
if (info.BssSize > 0)
{
KernelResult bssMappingResult = memMgr.MapProcessCodeMemory(nroMappedAddress + info.NroSize, info.BssAddress, info.BssSize);
if (bssMappingResult == KernelResult.InvalidMemState)
{
memMgr.UnmapProcessCodeMemory(nroMappedAddress + info.NroSize, info.BssAddress, info.BssSize);
memMgr.UnmapProcessCodeMemory(nroMappedAddress, info.NroAddress, info.NroSize);
continue;
}
else if (bssMappingResult != KernelResult.Success)
{
memMgr.UnmapProcessCodeMemory(nroMappedAddress + info.NroSize, info.BssAddress, info.BssSize);
memMgr.UnmapProcessCodeMemory(nroMappedAddress, info.NroAddress, info.NroSize);
return((ResultCode)bssMappingResult);
}
}
if (CanAddGuardRegionsInProcess(process, nroMappedAddress, info.TotalSize))
{
return(ResultCode.Success);
}
}
return(ResultCode.InsufficientAddressSpace);
}
public ResultCode ParseNro(out NroInfo res, ServiceCtx context, ulong nroAddress, ulong nroSize, ulong bssAddress, ulong bssSize)
{
res = null;
if (_nroInfos.Count >= MaxNro)
{
return(ResultCode.TooManyNro);
}
else if (nroSize == 0 || nroAddress + nroSize <= nroAddress || (nroSize & 0xFFF) != 0)
{
return(ResultCode.InvalidSize);
}
else if (bssSize != 0 && bssAddress + bssSize <= bssAddress)
{
return(ResultCode.InvalidSize);
}
else if ((nroAddress & 0xFFF) != 0)
{
return(ResultCode.InvalidAddress);
}
uint magic = context.Memory.ReadUInt32((long)nroAddress + 0x10);
uint nroFileSize = context.Memory.ReadUInt32((long)nroAddress + 0x18);
if (magic != NroMagic || nroSize != nroFileSize)
{
return(ResultCode.InvalidNro);
}
byte[] nroData = context.Memory.ReadBytes((long)nroAddress, (long)nroSize);
byte[] nroHash = null;
MemoryStream stream = new MemoryStream(nroData);
using (SHA256 hasher = SHA256.Create())
{
nroHash = hasher.ComputeHash(stream);
}
if (!IsNroHashPresent(nroHash))
{
return(ResultCode.NotRegistered);
}
if (IsNroLoaded(nroHash))
{
return(ResultCode.AlreadyLoaded);
}
stream.Position = 0;
NxRelocatableObject executable = new NxRelocatableObject(stream, nroAddress, bssAddress);
// check if everything is page align.
if ((executable.Text.Length & 0xFFF) != 0 || (executable.Ro.Length & 0xFFF) != 0 ||
(executable.Data.Length & 0xFFF) != 0 || (executable.BssSize & 0xFFF) != 0)
{
return(ResultCode.InvalidNro);
}
// check if everything is contiguous.
if (executable.RoOffset != executable.TextOffset + executable.Text.Length ||
executable.DataOffset != executable.RoOffset + executable.Ro.Length ||
nroFileSize != executable.DataOffset + executable.Data.Length)
{
return(ResultCode.InvalidNro);
}
// finally check the bss size match.
if ((ulong)executable.BssSize != bssSize)
{
return(ResultCode.InvalidNro);
}
int totalSize = executable.Text.Length + executable.Ro.Length + executable.Data.Length + executable.BssSize;
res = new NroInfo(
executable,
nroHash,
nroAddress,
nroSize,
bssAddress,
bssSize,
(ulong)totalSize);
return(ResultCode.Success);
}
public ResultCode ParseNro(out NroInfo res, ServiceCtx context, ulong nroAddress, ulong nroSize, ulong bssAddress, ulong bssSize)
{
res = null;
if (_nroInfos.Count >= MaxNro)
{
return(ResultCode.TooManyNro);
}
else if (nroSize == 0 || nroAddress + nroSize <= nroAddress || (nroSize & 0xFFF) != 0)
{
return(ResultCode.InvalidSize);
}
else if (bssSize != 0 && bssAddress + bssSize <= bssAddress)
{
return(ResultCode.InvalidSize);
}
else if ((nroAddress & 0xFFF) != 0)
{
return(ResultCode.InvalidAddress);
}
uint magic = _owner.CpuMemory.Read <uint>(nroAddress + 0x10);
uint nroFileSize = _owner.CpuMemory.Read <uint>(nroAddress + 0x18);
if (magic != NroMagic || nroSize != nroFileSize)
{
return(ResultCode.InvalidNro);
}
byte[] nroData = new byte[nroSize];
_owner.CpuMemory.Read(nroAddress, nroData);
byte[] nroHash = null;
MemoryStream stream = new MemoryStream(nroData);
using (SHA256 hasher = SHA256.Create())
{
nroHash = hasher.ComputeHash(stream);
}
if (!IsNroHashPresent(nroHash))
{
return(ResultCode.NotRegistered);
}
if (IsNroLoaded(nroHash))
{
return(ResultCode.AlreadyLoaded);
}
stream.Position = 0;
NroExecutable nro = new NroExecutable(stream.AsStorage(), nroAddress, bssAddress);
// Check if everything is page align.
if ((nro.Text.Length & 0xFFF) != 0 || (nro.Ro.Length & 0xFFF) != 0 ||
(nro.Data.Length & 0xFFF) != 0 || (nro.BssSize & 0xFFF) != 0)
{
return(ResultCode.InvalidNro);
}
// Check if everything is contiguous.
if (nro.RoOffset != nro.TextOffset + nro.Text.Length ||
nro.DataOffset != nro.RoOffset + nro.Ro.Length ||
nroFileSize != nro.DataOffset + nro.Data.Length)
{
return(ResultCode.InvalidNro);
}
// Check the bss size match.
if ((ulong)nro.BssSize != bssSize)
{
return(ResultCode.InvalidNro);
}
uint totalSize = (uint)nro.Text.Length + (uint)nro.Ro.Length + (uint)nro.Data.Length + nro.BssSize;
// Apply patches
context.Device.FileSystem.ModLoader.ApplyNroPatches(nro);
res = new NroInfo(
nro,
nroHash,
nroAddress,
nroSize,
bssAddress,
bssSize,
(ulong)totalSize);
return(ResultCode.Success);
}