jellyfin/Emby.Common.Implementations/IO/SharpCifs/Smb/SmbComNtTransaction.cs

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2017-04-02 00:36:06 +00:00
// This code is derived from jcifs smb client library <jcifs at samba dot org>
// Ported by J. Arturo <webmaster at komodosoft dot net>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
namespace SharpCifs.Smb
{
internal abstract class SmbComNtTransaction : SmbComTransaction
{
private const int NttPrimarySetupOffset = 69;
private const int NttSecondaryParameterOffset = 51;
internal const int NtTransactQuerySecurityDesc = 6;
internal int Function;
public SmbComNtTransaction()
{
// relative to headerStart
primarySetupOffset = NttPrimarySetupOffset;
secondaryParameterOffset = NttSecondaryParameterOffset;
}
internal override int WriteParameterWordsWireFormat(byte[] dst, int dstIndex)
{
int start = dstIndex;
if (Command != SmbComNtTransactSecondary)
{
dst[dstIndex++] = MaxSetupCount;
}
else
{
dst[dstIndex++] = unchecked(unchecked(0x00));
}
// Reserved
dst[dstIndex++] = unchecked(unchecked(0x00));
// Reserved
dst[dstIndex++] = unchecked(unchecked(0x00));
// Reserved
WriteInt4(TotalParameterCount, dst, dstIndex);
dstIndex += 4;
WriteInt4(TotalDataCount, dst, dstIndex);
dstIndex += 4;
if (Command != SmbComNtTransactSecondary)
{
WriteInt4(MaxParameterCount, dst, dstIndex);
dstIndex += 4;
WriteInt4(MaxDataCount, dst, dstIndex);
dstIndex += 4;
}
WriteInt4(ParameterCount, dst, dstIndex);
dstIndex += 4;
WriteInt4((ParameterCount == 0 ? 0 : ParameterOffset), dst, dstIndex);
dstIndex += 4;
if (Command == SmbComNtTransactSecondary)
{
WriteInt4(ParameterDisplacement, dst, dstIndex);
dstIndex += 4;
}
WriteInt4(DataCount, dst, dstIndex);
dstIndex += 4;
WriteInt4((DataCount == 0 ? 0 : DataOffset), dst, dstIndex);
dstIndex += 4;
if (Command == SmbComNtTransactSecondary)
{
WriteInt4(DataDisplacement, dst, dstIndex);
dstIndex += 4;
dst[dstIndex++] = unchecked(unchecked(0x00));
}
else
{
// Reserved1
dst[dstIndex++] = unchecked((byte)SetupCount);
WriteInt2(Function, dst, dstIndex);
dstIndex += 2;
dstIndex += WriteSetupWireFormat(dst, dstIndex);
}
return dstIndex - start;
}
}
}