public AccessMask(byte[] buffer, int offset)
{
uint value = LittleEndianConverter.ToUInt32(buffer, offset);
File = (FileAccessMask)value;
Directory = (FileAccessMask)value;
}
public NTTransactCreateRequest(byte[] parameters, byte[] data, bool isUnicode)
{
int parametersOffset = 0;
Flags = (NTCreateFlags)LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
RootDirectoryFID = LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
DesiredAccess = (FileAccessMask)LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
AllocationSize = LittleEndianReader.ReadInt64(parameters, ref parametersOffset);
ExtFileAttributes = (ExtendedFileAttributes)LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
ShareAccess = (ShareAccess)LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
CreateDisposition = (CreateDisposition)LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
CreateOptions = (CreateOptions)LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
uint securityDescriptiorLength = LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
uint eaLength = LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
uint nameLength = LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
ImpersonationLevel = (ImpersonationLevel)LittleEndianReader.ReadUInt32(parameters, ref parametersOffset);
SecurityFlags = (SecurityFlags)ByteReader.ReadByte(parameters, ref parametersOffset);
if (isUnicode)
{
parametersOffset++;
}
Name = SMB1Helper.ReadFixedLengthString(parameters, ref parametersOffset, isUnicode, (int)nameLength);
if (securityDescriptiorLength > 0)
{
SecurityDescriptor = new SecurityDescriptor(data, 0);
}
ExtendedAttributes = FileFullEAInformation.ReadList(data, (int)securityDescriptiorLength);
}
public NTCreateAndXRequest(byte[] buffer, int offset, bool isUnicode) : base(buffer, offset, isUnicode)
{
Reserved = ByteReader.ReadByte(this.SMBParameters, 4);
NameLength = LittleEndianConverter.ToUInt16(this.SMBParameters, 5);
Flags = (NTCreateFlags)LittleEndianConverter.ToUInt32(this.SMBParameters, 7);
RootDirectoryFID = LittleEndianConverter.ToUInt32(this.SMBParameters, 11);
DesiredAccess = (FileAccessMask)LittleEndianConverter.ToUInt32(this.SMBParameters, 15);
AllocationSize = LittleEndianConverter.ToInt64(this.SMBParameters, 19);
ExtFileAttributes = (ExtendedFileAttributes)LittleEndianConverter.ToUInt32(this.SMBParameters, 27);
ShareAccess = (ShareAccess)LittleEndianConverter.ToUInt32(this.SMBParameters, 31);
CreateDisposition = (CreateDisposition)LittleEndianConverter.ToUInt32(this.SMBParameters, 35);
CreateOptions = (CreateOptions)LittleEndianConverter.ToUInt32(this.SMBParameters, 39);
ImpersonationLevel = (ImpersonationLevel)LittleEndianConverter.ToUInt32(this.SMBParameters, 43);
SecurityFlags = (SecurityFlags)ByteReader.ReadByte(this.SMBParameters, 47);
int dataOffset = 0;
if (isUnicode)
{
// A Unicode string MUST be aligned to a 16-bit boundary with respect to the beginning of the SMB Header.
// Note: SMBData starts at an odd offset.
dataOffset = 1;
}
FileName = SMB1Helper.ReadSMBString(this.SMBData, dataOffset, isUnicode);
}
/// <summary>
/// Will return desired FileAccess rights to the file data.
/// </summary>
public static FileAccess ToFileAccess(FileAccessMask desiredAccess)
{
FileAccess result = 0;
if ((desiredAccess & FileAccessMask.FILE_READ_DATA) > 0 ||
(desiredAccess & FileAccessMask.MAXIMUM_ALLOWED) > 0 ||
(desiredAccess & FileAccessMask.GENERIC_ALL) > 0 ||
(desiredAccess & FileAccessMask.GENERIC_READ) > 0)
{
result |= FileAccess.Read;
}
if ((desiredAccess & FileAccessMask.FILE_WRITE_DATA) > 0 ||
(desiredAccess & FileAccessMask.FILE_APPEND_DATA) > 0 ||
(desiredAccess & FileAccessMask.MAXIMUM_ALLOWED) > 0 ||
(desiredAccess & FileAccessMask.GENERIC_ALL) > 0 ||
(desiredAccess & FileAccessMask.GENERIC_WRITE) > 0)
{
result |= FileAccess.Write;
}
return(result);
}
public static extern SafeFileHandle CreateFile(string path, FileAccessMask accessMask, FileShareMode shareMode,
IntPtr sd, CreationDisposition disposition, CreateFileFlags flags, IntPtr hTemplateFile);