159 lines
6.5 KiB
C#
159 lines
6.5 KiB
C#
// This code is derived from jcifs smb client library <jcifs at samba dot org>
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// Ported by J. Arturo <webmaster at komodosoft dot net>
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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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using System;
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using SharpCifs.Util.Sharpen;
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namespace SharpCifs.Netbios
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{
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internal class NodeStatusResponse : NameServicePacket
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{
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private NbtAddress _queryAddress;
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private int _numberOfNames;
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private byte[] _macAddress;
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private byte[] _stats;
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internal NbtAddress[] AddressArray;
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internal NodeStatusResponse(NbtAddress queryAddress)
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{
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this._queryAddress = queryAddress;
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RecordName = new Name();
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_macAddress = new byte[6];
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}
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internal override int WriteBodyWireFormat(byte[] dst, int dstIndex)
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{
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return 0;
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}
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internal override int ReadBodyWireFormat(byte[] src, int srcIndex)
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{
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return ReadResourceRecordWireFormat(src, srcIndex);
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}
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internal override int WriteRDataWireFormat(byte[] dst, int dstIndex)
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{
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return 0;
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}
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internal override int ReadRDataWireFormat(byte[] src, int srcIndex)
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{
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int start = srcIndex;
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_numberOfNames = src[srcIndex] & unchecked(0xFF);
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int namesLength = _numberOfNames * 18;
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int statsLength = RDataLength - namesLength - 1;
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_numberOfNames = src[srcIndex++] & unchecked(0xFF);
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// gotta read the mac first so we can populate addressArray with it
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Array.Copy(src, srcIndex + namesLength, _macAddress, 0, 6);
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srcIndex += ReadNodeNameArray(src, srcIndex);
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_stats = new byte[statsLength];
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Array.Copy(src, srcIndex, _stats, 0, statsLength);
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srcIndex += statsLength;
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return srcIndex - start;
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}
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private int ReadNodeNameArray(byte[] src, int srcIndex)
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{
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int start = srcIndex;
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AddressArray = new NbtAddress[_numberOfNames];
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string n;
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int hexCode;
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string scope = _queryAddress.HostName.Scope;
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bool groupName;
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int ownerNodeType;
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bool isBeingDeleted;
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bool isInConflict;
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bool isActive;
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bool isPermanent;
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int j;
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bool addrFound = false;
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try
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{
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for (int i = 0; i < _numberOfNames; srcIndex += 18, i++)
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{
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for (j = srcIndex + 14; src[j] == unchecked(0x20); j--)
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{
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}
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n = Runtime.GetStringForBytes(src, srcIndex, j - srcIndex + 1, Name.OemEncoding
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);
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hexCode = src[srcIndex + 15] & unchecked(0xFF);
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groupName = ((src[srcIndex + 16] & unchecked(0x80)) == unchecked(0x80))
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? true
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: false;
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ownerNodeType = (src[srcIndex + 16] & unchecked(0x60)) >> 5;
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isBeingDeleted = ((src[srcIndex + 16] & unchecked(0x10)) == unchecked(0x10))
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? true
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: false;
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isInConflict = ((src[srcIndex + 16] & unchecked(0x08)) == unchecked(0x08))
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? true
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: false;
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isActive = ((src[srcIndex + 16] & unchecked(0x04)) == unchecked(0x04))
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? true
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: false;
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isPermanent = ((src[srcIndex + 16] & unchecked(0x02)) == unchecked(0x02))
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? true
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: false;
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if (!addrFound
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&& _queryAddress.HostName.HexCode == hexCode
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&& (_queryAddress.HostName == NbtAddress.UnknownName
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|| _queryAddress.HostName.name.Equals(n)))
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{
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if (_queryAddress.HostName == NbtAddress.UnknownName)
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{
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_queryAddress.HostName = new Name(n, hexCode, scope);
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}
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_queryAddress.GroupName = groupName;
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_queryAddress.NodeType = ownerNodeType;
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_queryAddress.isBeingDeleted = isBeingDeleted;
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_queryAddress.isInConflict = isInConflict;
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_queryAddress.isActive = isActive;
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_queryAddress.isPermanent = isPermanent;
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_queryAddress.MacAddress = _macAddress;
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_queryAddress.IsDataFromNodeStatus = true;
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addrFound = true;
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AddressArray[i] = _queryAddress;
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}
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else
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{
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AddressArray[i] = new NbtAddress(new Name(n, hexCode, scope),
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_queryAddress.Address,
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groupName,
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ownerNodeType,
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isBeingDeleted,
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isInConflict,
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isActive,
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isPermanent,
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_macAddress);
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}
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}
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}
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catch (UnsupportedEncodingException)
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{
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}
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return srcIndex - start;
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}
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public override string ToString()
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{
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return "NodeStatusResponse[" + base.ToString() + "]";
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}
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}
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}
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