internal DllDebugData(SafeHGlobalBuffer buffer) : this()
{
Magic = buffer.Read <uint>(0);
if (Magic == CV_RSDS_MAGIC)
{
Id = new Guid(buffer.ReadBytes(4, 16));
Age = buffer.Read <int>(20);
PdbPath = buffer.ReadNulTerminatedAnsiString(24, Encoding.UTF8);
IdentiferPath = $"{Id:N}{Age:X}".ToUpper();
}
}
internal static DeviceProperty GetProperty(int devinst, DEVPROPKEY key)
{
DeviceProperty ret = new DeviceProperty()
{
Name = DevicePropertyKeys.KeyToName(key), FmtId = key.fmtid, Pid = key.pid, Data = new byte[0]
};
using (var buffer = new SafeHGlobalBuffer(2000)) {
int length = buffer.Length;
if (DeviceNativeMethods.CM_Get_DevNode_PropertyW(devinst, key, out DEVPROPTYPE type, buffer, ref length, 0) == CrError.SUCCESS)
{
ret.Type = type;
ret.Data = buffer.ReadBytes(length);
}
}
return(ret);
}
public static Natives.WnfStateData QueryWnf(ulong state)
{
var data = new Natives.WnfStateData();
int tries = 10;
int size = 4096;
while (tries-- > 0)
{
using (var buffer = new SafeHGlobalBuffer(size))
{
int status;
status = Natives.ZwQueryWnfStateData(ref state, null, IntPtr.Zero, out int changestamp, buffer, ref size);
if (status == 0xC0000023)
{
continue;
}
data = new Natives.WnfStateData(changestamp, buffer.ReadBytes(size));
}
}
return(data);
}
/// <summary>
/// Send a message to the filter.
/// </summary>
/// <param name="input">The input buffer.</param>
/// <param name="max_output_length">The maximum size of the output buffer.</param>
/// <param name="throw_on_error">true to throw on error.</param>
/// <returns>The output buffer.</returns>
public NtResult <byte[]> SendMessage(byte[] input, int max_output_length, bool throw_on_error)
{
using (var input_buffer = input?.ToBuffer())
{
using (var output_buffer = new SafeHGlobalBuffer(max_output_length))
{
return(SendMessage(input_buffer, output_buffer, throw_on_error).Map(i => output_buffer.ReadBytes(i)));
}
}
}
