private static void DeleteSymbolicLink(string path)
{
using (var data = new MemoryAlloc(MountMgrMountPoint.Size + path.Length * 2))
using (var outData = new MemoryAlloc(1600))
{
MountMgrMountPoint mountPoint = new MountMgrMountPoint();
mountPoint.SymbolicLinkNameLength = (ushort)(path.Length * 2);
mountPoint.SymbolicLinkNameOffset = MountMgrMountPoint.Size;
data.WriteStruct <MountMgrMountPoint>(mountPoint);
data.WriteUnicodeString(mountPoint.SymbolicLinkNameOffset, path);
using (var fhandle = OpenMountManager(FileAccess.GenericRead | FileAccess.GenericWrite))
{
fhandle.IoControl(IoCtlDeletePoints, data.Memory, data.Size, outData.Memory, outData.Size);
}
}
}
public static string GetVolumeName(string deviceName)
{
using (MemoryAlloc data = new MemoryAlloc(MountMgrMountPoint.SizeOf + deviceName.Length * 2))
{
MountMgrMountPoint mountPoint = new MountMgrMountPoint
{
DeviceNameLength = (ushort)(deviceName.Length * 2),
DeviceNameOffset = MountMgrMountPoint.SizeOf
};
data.WriteStruct(mountPoint);
data.WriteUnicodeString(mountPoint.DeviceNameOffset, deviceName);
using (var fhandle = OpenMountManager((FileAccess)StandardRights.Synchronize))
{
NtStatus status;
int retLength;
using (MemoryAlloc outData = new MemoryAlloc(0x100))
{
while (true)
{
status = fhandle.IoControl(
IoCtlQueryPoints,
data.Memory,
data.Size,
outData.Memory,
outData.Size,
out retLength
);
if (status == NtStatus.BufferOverflow)
{
outData.ResizeNew(Marshal.ReadInt32(outData.Memory)); // read Size field
continue;
}
else
{
break;
}
}
status.ThrowIf();
MountMgrMountPoints mountPoints = outData.ReadStruct <MountMgrMountPoints>();
// Go through the mount points given and return the first symbolic link that seems
// to be a volume name.
for (int i = 0; i < mountPoints.NumberOfMountPoints; i++)
{
MountMgrMountPoint mp = outData.ReadStruct <MountMgrMountPoint>(
MountMgrMountPoints.MountPointsOffset,
MountMgrMountPoint.SizeOf,
i
);
string symLinkName = Marshal.PtrToStringUni(
outData.Memory.Increment(mp.SymbolicLinkNameOffset),
mp.SymbolicLinkNameLength / 2
);
if (IsVolumePath(symLinkName))
{
return(symLinkName);
}
}
return(null);
}
}
}
}
public static string GetVolumeName(string deviceName)
{
using (MemoryAlloc data = new MemoryAlloc(MountMgrMountPoint.SizeOf + deviceName.Length * 2))
{
MountMgrMountPoint mountPoint = new MountMgrMountPoint
{
DeviceNameLength = (ushort)(deviceName.Length*2),
DeviceNameOffset = MountMgrMountPoint.SizeOf
};
data.WriteStruct(mountPoint);
data.WriteUnicodeString(mountPoint.DeviceNameOffset, deviceName);
using (var fhandle = OpenMountManager((FileAccess)StandardRights.Synchronize))
{
NtStatus status;
int retLength;
using (MemoryAlloc outData = new MemoryAlloc(0x100))
{
while (true)
{
status = fhandle.IoControl(
IoCtlQueryPoints,
data.Memory,
data.Size,
outData.Memory,
outData.Size,
out retLength
);
if (status == NtStatus.BufferOverflow)
{
outData.ResizeNew(Marshal.ReadInt32(outData.Memory)); // read Size field
continue;
}
else
{
break;
}
}
status.ThrowIf();
MountMgrMountPoints mountPoints = outData.ReadStruct<MountMgrMountPoints>();
// Go through the mount points given and return the first symbolic link that seems
// to be a volume name.
for (int i = 0; i < mountPoints.NumberOfMountPoints; i++)
{
MountMgrMountPoint mp = outData.ReadStruct<MountMgrMountPoint>(
MountMgrMountPoints.MountPointsOffset,
MountMgrMountPoint.SizeOf,
i
);
string symLinkName = Marshal.PtrToStringUni(
outData.Memory.Increment(mp.SymbolicLinkNameOffset),
mp.SymbolicLinkNameLength / 2
);
if (IsVolumePath(symLinkName))
return symLinkName;
}
return null;
}
}
}
}
private static void DeleteSymbolicLink(string path)
{
using (MemoryAlloc data = new MemoryAlloc(MountMgrMountPoint.SizeOf + path.Length * 2))
using (MemoryAlloc outData = new MemoryAlloc(1600))
{
MountMgrMountPoint mountPoint = new MountMgrMountPoint
{
SymbolicLinkNameLength = (ushort)(path.Length*2),
SymbolicLinkNameOffset = MountMgrMountPoint.SizeOf
};
data.WriteStruct(mountPoint);
data.WriteUnicodeString(mountPoint.SymbolicLinkNameOffset, path);
using (var fhandle = OpenMountManager(FileAccess.GenericRead | FileAccess.GenericWrite))
{
fhandle.IoControl(IoCtlDeletePoints, data.Memory, data.Size, outData.Memory, outData.Size);
}
}
}
