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// 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
using SharpCifs.Util;
using SharpCifs.Util.Sharpen;
namespace SharpCifs.Smb
{
internal class SmbComOpenAndX : AndXServerMessageBlock
{
private const int FlagsReturnAdditionalInfo = 0x01;
private const int FlagsRequestOplock = 0x02;
private const int FlagsRequestBatchOplock = 0x04;
private const int SharingCompatibility = 0x00;
private const int SharingDenyReadWriteExecute = 0x10;
private const int SharingDenyWrite = 0x20;
private const int SharingDenyReadExecute = 0x30;
private const int SharingDenyNone = 0x40;
private const int DoNotCache = 0x1000;
private const int WriteThrough = 0x4000;
private const int OpenFnCreate = 0x10;
private const int OpenFnFailIfExists = 0x00;
private const int OpenFnOpen = 0x01;
private const int OpenFnTrunc = 0x02;
private static readonly int BatchLimit = Config.GetInt("jcifs.smb.client.OpenAndX.ReadAndX"
, 1);
internal int flags;
internal int DesiredAccess;
internal int SearchAttributes;
internal int FileAttributes;
internal int CreationTime;
internal int OpenFunction;
internal int AllocationSize;
internal SmbComOpenAndX(string fileName, int access, int flags, ServerMessageBlock
andx) : base(andx)
{
// flags (not the same as flags constructor argument)
// Access Mode Encoding for desiredAccess
// bit 12
// bit 14
// flags is NOT the same as flags member
Path = fileName;
Command = SmbComOpenAndx;
DesiredAccess = access & 0x3;
if (DesiredAccess == 0x3)
{
DesiredAccess = 0x2;
}
DesiredAccess |= SharingDenyNone;
DesiredAccess &= ~0x1;
// Win98 doesn't like GENERIC_READ ?! -- get Access Denied.
// searchAttributes
SearchAttributes = SmbConstants.AttrDirectory | SmbConstants.AttrHidden | SmbConstants.AttrSystem;
// fileAttributes
FileAttributes = 0;
// openFunction
if ((flags & SmbFile.OTrunc) == SmbFile.OTrunc)
{
// truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
OpenFunction = OpenFnTrunc | OpenFnCreate;
}
else
{
OpenFunction = OpenFnTrunc;
}
}
else
{
// don't truncate the file
if ((flags & SmbFile.OCreat) == SmbFile.OCreat)
{
// create it if necessary
if ((flags & SmbFile.OExcl) == SmbFile.OExcl)
{
// fail if already exists
OpenFunction = OpenFnCreate | OpenFnFailIfExists;
}
else
{
OpenFunction = OpenFnCreate | OpenFnOpen;
}
}
else
{
OpenFunction = OpenFnOpen;
}
}
}
internal override int GetBatchLimit(byte command)
{
return command == SmbComReadAndx ? BatchLimit : 0;
}
internal override int WriteParameterWordsWireFormat(byte[] dst, int dstIndex)
{
int start = dstIndex;
WriteInt2(flags, dst, dstIndex);
dstIndex += 2;
WriteInt2(DesiredAccess, dst, dstIndex);
dstIndex += 2;
WriteInt2(SearchAttributes, dst, dstIndex);
dstIndex += 2;
WriteInt2(FileAttributes, dst, dstIndex);
dstIndex += 2;
CreationTime = 0;
WriteInt4(CreationTime, dst, dstIndex);
dstIndex += 4;
WriteInt2(OpenFunction, dst, dstIndex);
dstIndex += 2;
WriteInt4(AllocationSize, dst, dstIndex);
dstIndex += 4;
for (int i = 0; i < 8; i++)
{
dst[dstIndex++] = 0x00;
}
return dstIndex - start;
}
internal override int WriteBytesWireFormat(byte[] dst, int dstIndex)
{
int start = dstIndex;
if (UseUnicode)
{
dst[dstIndex++] = (byte)('\0');
}
dstIndex += WriteString(Path, dst, dstIndex);
return dstIndex - start;
}
internal override int ReadParameterWordsWireFormat(byte[] buffer, int bufferIndex
)
{
return 0;
}
internal override int ReadBytesWireFormat(byte[] buffer, int bufferIndex)
{
return 0;
}
public override string ToString()
{
return "SmbComOpenAndX[" + base.ToString() + ",flags=0x" + Hexdump.ToHexString
(flags, 2) + ",desiredAccess=0x" + Hexdump.ToHexString(DesiredAccess, 4) + ",searchAttributes=0x"
+ Hexdump.ToHexString(SearchAttributes, 4) + ",fileAttributes=0x" + Hexdump.ToHexString
(FileAttributes, 4) + ",creationTime=" + Extensions.CreateDate(CreationTime
) + ",openFunction=0x" + Hexdump.ToHexString(OpenFunction, 2) + ",allocationSize="
+ AllocationSize + ",fileName=" + Path + "]";
}
}
}
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