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https://github.com/jellyfin/jellyfin.git
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merge common implementations and server implementations
This commit is contained in:
Luke Pulverenti
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// This code is derived from jcifs smb client library <jcifs at samba dot org>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Ported to C# by J. Arturo <webmaster at komodosoft.net>
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using System;
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using SharpCifs.Util.Sharpen;
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namespace SharpCifs.Smb
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{
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internal class SmbComSessionSetupAndX : AndXServerMessageBlock
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{
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private static readonly int BatchLimit = Config.GetInt("jcifs.smb.client.SessionSetupAndX.TreeConnectAndX"
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, 1);
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private static readonly bool DisablePlainTextPasswords = Config.GetBoolean("jcifs.smb.client.disablePlainTextPasswords"
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, true);
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private byte[] _lmHash;
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private byte[] _ntHash;
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private byte[] _blob;
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private int _sessionKey;
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private int _capabilities;
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private string _accountName;
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private string _primaryDomain;
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internal SmbSession Session;
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internal object Cred;
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/// <exception cref="SharpCifs.Smb.SmbException"></exception>
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internal SmbComSessionSetupAndX(SmbSession session, ServerMessageBlock andx, object
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cred) : base(andx)
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{
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Command = SmbComSessionSetupAndx;
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this.Session = session;
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this.Cred = cred;
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_sessionKey = session.transport.SessionKey;
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_capabilities = session.transport.Capabilities;
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if (session.transport.Server.Security == SmbConstants.SecurityUser)
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{
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if (cred is NtlmPasswordAuthentication)
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{
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NtlmPasswordAuthentication auth = (NtlmPasswordAuthentication)cred;
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if (auth == NtlmPasswordAuthentication.Anonymous)
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{
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_lmHash = new byte[0];
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_ntHash = new byte[0];
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_capabilities &= ~SmbConstants.CapExtendedSecurity;
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}
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else
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{
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if (session.transport.Server.EncryptedPasswords)
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{
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_lmHash = auth.GetAnsiHash(session.transport.Server.EncryptionKey);
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_ntHash = auth.GetUnicodeHash(session.transport.Server.EncryptionKey);
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// prohibit HTTP auth attempts for the null session
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if (_lmHash.Length == 0 && _ntHash.Length == 0)
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{
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throw new RuntimeException("Null setup prohibited.");
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}
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}
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else
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{
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if (DisablePlainTextPasswords)
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{
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throw new RuntimeException("Plain text passwords are disabled");
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}
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if (UseUnicode)
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{
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// plain text
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string password = auth.GetPassword();
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_lmHash = new byte[0];
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_ntHash = new byte[(password.Length + 1) * 2];
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WriteString(password, _ntHash, 0);
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}
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else
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{
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// plain text
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string password = auth.GetPassword();
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_lmHash = new byte[(password.Length + 1) * 2];
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_ntHash = new byte[0];
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WriteString(password, _lmHash, 0);
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}
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}
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}
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_accountName = auth.Username;
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if (UseUnicode)
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{
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_accountName = _accountName.ToUpper();
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}
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_primaryDomain = auth.Domain.ToUpper();
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}
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else
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{
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if (cred is byte[])
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{
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_blob = (byte[])cred;
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}
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else
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{
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throw new SmbException("Unsupported credential type");
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}
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}
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}
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else
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{
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if (session.transport.Server.Security == SmbConstants.SecurityShare)
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{
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if (cred is NtlmPasswordAuthentication)
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{
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NtlmPasswordAuthentication auth = (NtlmPasswordAuthentication)cred;
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_lmHash = new byte[0];
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_ntHash = new byte[0];
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_accountName = auth.Username;
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if (UseUnicode)
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{
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_accountName = _accountName.ToUpper();
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}
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_primaryDomain = auth.Domain.ToUpper();
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}
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else
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{
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throw new SmbException("Unsupported credential type");
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}
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}
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else
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{
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throw new SmbException("Unsupported");
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}
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}
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}
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internal override int GetBatchLimit(byte command)
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{
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return command == SmbComTreeConnectAndx ? BatchLimit : 0;
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}
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internal override int WriteParameterWordsWireFormat(byte[] dst, int dstIndex)
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{
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int start = dstIndex;
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WriteInt2(Session.transport.SndBufSize, dst, dstIndex);
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dstIndex += 2;
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WriteInt2(Session.transport.MaxMpxCount, dst, dstIndex);
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dstIndex += 2;
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WriteInt2(SmbConstants.VcNumber, dst, dstIndex);
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dstIndex += 2;
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WriteInt4(_sessionKey, dst, dstIndex);
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dstIndex += 4;
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if (_blob != null)
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{
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WriteInt2(_blob.Length, dst, dstIndex);
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dstIndex += 2;
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}
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else
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{
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WriteInt2(_lmHash.Length, dst, dstIndex);
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dstIndex += 2;
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WriteInt2(_ntHash.Length, dst, dstIndex);
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dstIndex += 2;
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}
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dst[dstIndex++] = unchecked(unchecked(0x00));
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dst[dstIndex++] = unchecked(unchecked(0x00));
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dst[dstIndex++] = unchecked(unchecked(0x00));
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dst[dstIndex++] = unchecked(unchecked(0x00));
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WriteInt4(_capabilities, dst, dstIndex);
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dstIndex += 4;
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return dstIndex - start;
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}
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internal override int WriteBytesWireFormat(byte[] dst, int dstIndex)
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{
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int start = dstIndex;
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if (_blob != null)
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{
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Array.Copy(_blob, 0, dst, dstIndex, _blob.Length);
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dstIndex += _blob.Length;
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}
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else
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{
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Array.Copy(_lmHash, 0, dst, dstIndex, _lmHash.Length);
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dstIndex += _lmHash.Length;
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Array.Copy(_ntHash, 0, dst, dstIndex, _ntHash.Length);
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dstIndex += _ntHash.Length;
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dstIndex += WriteString(_accountName, dst, dstIndex);
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dstIndex += WriteString(_primaryDomain, dst, dstIndex);
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}
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dstIndex += WriteString(SmbConstants.NativeOs, dst, dstIndex);
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dstIndex += WriteString(SmbConstants.NativeLanman, dst, dstIndex);
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return dstIndex - start;
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}
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internal override int ReadParameterWordsWireFormat(byte[] buffer, int bufferIndex
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)
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{
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return 0;
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}
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internal override int ReadBytesWireFormat(byte[] buffer, int bufferIndex)
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{
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return 0;
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}
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public override string ToString()
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{
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string result = "SmbComSessionSetupAndX[" + base.ToString() + ",snd_buf_size="
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+ Session.transport.SndBufSize + ",maxMpxCount=" + Session.transport.MaxMpxCount
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+ ",VC_NUMBER=" + SmbConstants.VcNumber + ",sessionKey=" + _sessionKey + ",lmHash.length="
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+ (_lmHash == null ? 0 : _lmHash.Length) + ",ntHash.length=" + (_ntHash == null ?
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0 : _ntHash.Length) + ",capabilities=" + _capabilities + ",accountName=" + _accountName
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+ ",primaryDomain=" + _primaryDomain + ",NATIVE_OS=" + SmbConstants.NativeOs
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+ ",NATIVE_LANMAN=" + SmbConstants.NativeLanman + "]";
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return result;
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}
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}
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}
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