/// <summary>
/// remove the open.if does not exists, do nothing.
/// </summary>
/// <param name="open">the open to remove</param>
internal void RemoveOpen(SmbServerOpen open)
{
lock (this.openTable)
{
if (this.openTable.Contains(open))
{
this.openTable.Remove(open);
}
}
}
/// <summary>
/// add open to treeconnect
/// </summary>
/// <param name="open">the open to add</param>
/// <exception cref="InvalidOperationException">the open have exist in the treeconnect!</exception>
internal void AddOpen(SmbServerOpen open)
{
lock (this.openTable)
{
if (this.openTable.Contains(open))
{
throw new InvalidOperationException("the open have exist in the treeconnect!");
}
this.openTable.Add(open);
}
}
/// <summary>
/// remove the open.if does not exists, do nothing.
/// </summary>
/// <param name="open">the open to remove</param>
internal void RemoveOpen(SmbServerOpen open)
{
lock (this.openTable)
{
if (this.openTable.Contains(open))
{
this.openTable.Remove(open);
}
}
}
/// <summary>
/// add open to treeconnect
/// </summary>
/// <param name="open">the open to add</param>
/// <exception cref="InvalidOperationException">the open have exist in the treeconnect!</exception>
internal void AddOpen(SmbServerOpen open)
{
lock (this.openTable)
{
if (this.openTable.Contains(open))
{
throw new InvalidOperationException("the open have exist in the treeconnect!");
}
this.openTable.Add(open);
}
}
/// <summary>
/// update the context with response packet
/// </summary>
/// <param name="connection">the connection of endpoint</param>
/// <param name="packet">the packet to update the context</param>
private void ResponsePacketUpdateRoleContext(SmbServerConnection connection, SmbPacket packet)
{
SmbHeader smbHeader = packet.SmbHeader;
SmbPacket requestPacket = connection.GetRequestPacket(smbHeader.Mid);
if (requestPacket == null)
{
return;
}
switch (smbHeader.Command)
{
case SmbCommand.SMB_COM_SESSION_SETUP_ANDX:
if (smbHeader.Uid == 0)
{
break;
}
else
{
SmbServerSession session = new SmbServerSession();
session.Uid = smbHeader.Uid;
session.AuthenticationState = SessionState.Complete;
session.Connection = connection;
session.SessionKey = connection.GssApi.SessionKey;
connection.AddSession(session);
}
break;
case SmbCommand.SMB_COM_LOGOFF_ANDX:
if (requestPacket.SmbHeader.Uid == 0)
{
break;
}
else
{
connection.RemoveSession(connection.GetSession(requestPacket.SmbHeader.Uid));
}
break;
case SmbCommand.SMB_COM_TREE_CONNECT_ANDX:
{
SmbTreeConnectAndxRequestPacket request = requestPacket as SmbTreeConnectAndxRequestPacket;
SmbServerTreeConnect treeconnect = new SmbServerTreeConnect();
treeconnect.TreeId = smbHeader.Tid;
treeconnect.Session = connection.GetSession(smbHeader.Uid);
if (treeconnect.Session == null)
{
break;
}
if ((request.SmbHeader.Flags2 & SmbFlags2.SMB_FLAGS2_UNICODE) != 0)
{
treeconnect.Path = Encoding.Unicode.GetString(request.SmbData.Path);
}
else
{
treeconnect.Path = Encoding.ASCII.GetString(request.SmbData.Path);
}
treeconnect.Path = treeconnect.Path.TrimEnd('\0');
treeconnect.Session.AddTreeConnect(treeconnect);
}
break;
case SmbCommand.SMB_COM_TREE_DISCONNECT:
if (requestPacket.SmbHeader.Uid != 0)
{
SmbServerSession session = connection.GetSession(requestPacket.SmbHeader.Uid);
if (session == null)
{
break;
}
session.RemoveTreeConnect(session.GetTreeConnect(requestPacket.SmbHeader.Tid));
}
break;
case SmbCommand.SMB_COM_NT_CREATE_ANDX:
{
SmbNtCreateAndxResponsePacket response = packet as SmbNtCreateAndxResponsePacket;
SmbNtCreateAndxRequestPacket request = requestPacket as SmbNtCreateAndxRequestPacket;
SmbServerOpen open = new SmbServerOpen();
open.SmbFid = response.SmbParameters.FID;
open.PathName = SmbMessageUtils.GetString(request.SmbData.FileName,
SmbFlags2.SMB_FLAGS2_UNICODE == (request.SmbHeader.Flags2 & SmbFlags2.SMB_FLAGS2_UNICODE));
open.PathName = open.PathName.TrimEnd('\0');
open.Session = connection.GetSession(smbHeader.Uid);
open.TreeConnect = connection.GetTreeConnect(smbHeader.Tid);
if (open.TreeConnect == null)
{
break;
}
open.TreeConnect.AddOpen(open);
}
break;
case SmbCommand.SMB_COM_OPEN_ANDX:
{
SmbOpenAndxResponsePacket response = packet as SmbOpenAndxResponsePacket;
SmbOpenAndxRequestPacket request = requestPacket as SmbOpenAndxRequestPacket;
SmbServerOpen open = new SmbServerOpen();
open.SmbFid = response.SmbParameters.FID;
open.PathName = SmbMessageUtils.GetString(request.SmbData.FileName,
SmbFlags2.SMB_FLAGS2_UNICODE == (request.SmbHeader.Flags2 & SmbFlags2.SMB_FLAGS2_UNICODE));
open.Session = connection.GetSession(smbHeader.Uid);
open.TreeConnect = connection.GetTreeConnect(smbHeader.Tid);
if (open.TreeConnect == null)
{
break;
}
open.TreeConnect.AddOpen(open);
}
break;
case SmbCommand.SMB_COM_CLOSE:
{
SmbCloseRequestPacket closeRequest = requestPacket as SmbCloseRequestPacket;
SmbServerTreeConnect treeconnect = connection.GetTreeConnect(requestPacket.SmbHeader.Tid);
if (treeconnect == null)
{
break;
}
treeconnect.RemoveOpen(treeconnect.GetOpen(closeRequest.SmbParameters.FID));
}
break;
default:
break;
}
connection.RemoveRequestPacket(packet);
}
/// <summary>
/// update the context with response packet
/// </summary>
/// <param name="connection">the connection of endpoint</param>
/// <param name="packet">the packet to update the context</param>
private void ResponsePacketUpdateRoleContext(SmbServerConnection connection, SmbPacket packet)
{
SmbHeader smbHeader = packet.SmbHeader;
SmbPacket requestPacket = connection.GetRequestPacket(smbHeader.Mid);
if (requestPacket == null)
{
return;
}
switch (smbHeader.Command)
{
case SmbCommand.SMB_COM_SESSION_SETUP_ANDX:
if (smbHeader.Uid == 0)
{
break;
}
else
{
SmbServerSession session = new SmbServerSession();
session.Uid = smbHeader.Uid;
session.AuthenticationState = SessionState.Complete;
session.Connection = connection;
session.SessionKey = connection.GssApi.SessionKey;
connection.AddSession(session);
}
break;
case SmbCommand.SMB_COM_LOGOFF_ANDX:
if (requestPacket.SmbHeader.Uid == 0)
{
break;
}
else
{
connection.RemoveSession(connection.GetSession(requestPacket.SmbHeader.Uid));
}
break;
case SmbCommand.SMB_COM_TREE_CONNECT_ANDX:
{
SmbTreeConnectAndxRequestPacket request = requestPacket as SmbTreeConnectAndxRequestPacket;
SmbServerTreeConnect treeconnect = new SmbServerTreeConnect();
treeconnect.TreeId = smbHeader.Tid;
treeconnect.Session = connection.GetSession(smbHeader.Uid);
if (treeconnect.Session == null)
{
break;
}
if ((request.SmbHeader.Flags2 & SmbFlags2.SMB_FLAGS2_UNICODE) != 0)
{
treeconnect.Path = Encoding.Unicode.GetString(request.SmbData.Path);
}
else
{
treeconnect.Path = Encoding.ASCII.GetString(request.SmbData.Path);
}
treeconnect.Path = treeconnect.Path.TrimEnd('\0');
treeconnect.Session.AddTreeConnect(treeconnect);
}
break;
case SmbCommand.SMB_COM_TREE_DISCONNECT:
if (requestPacket.SmbHeader.Uid != 0)
{
SmbServerSession session = connection.GetSession(requestPacket.SmbHeader.Uid);
if (session == null)
{
break;
}
session.RemoveTreeConnect(session.GetTreeConnect(requestPacket.SmbHeader.Tid));
}
break;
case SmbCommand.SMB_COM_NT_CREATE_ANDX:
{
SmbNtCreateAndxResponsePacket response = packet as SmbNtCreateAndxResponsePacket;
SmbNtCreateAndxRequestPacket request = requestPacket as SmbNtCreateAndxRequestPacket;
SmbServerOpen open = new SmbServerOpen();
open.SmbFid = response.SmbParameters.FID;
open.PathName = SmbMessageUtils.GetString(request.SmbData.FileName,
SmbFlags2.SMB_FLAGS2_UNICODE == (request.SmbHeader.Flags2 & SmbFlags2.SMB_FLAGS2_UNICODE));
open.PathName = open.PathName.TrimEnd('\0');
open.Session = connection.GetSession(smbHeader.Uid);
open.TreeConnect = connection.GetTreeConnect(smbHeader.Tid);
if (open.TreeConnect == null)
{
break;
}
open.TreeConnect.AddOpen(open);
}
break;
case SmbCommand.SMB_COM_OPEN_ANDX:
{
SmbOpenAndxResponsePacket response = packet as SmbOpenAndxResponsePacket;
SmbOpenAndxRequestPacket request = requestPacket as SmbOpenAndxRequestPacket;
SmbServerOpen open = new SmbServerOpen();
open.SmbFid = response.SmbParameters.FID;
open.PathName = SmbMessageUtils.GetString(request.SmbData.FileName,
SmbFlags2.SMB_FLAGS2_UNICODE == (request.SmbHeader.Flags2 & SmbFlags2.SMB_FLAGS2_UNICODE));
open.Session = connection.GetSession(smbHeader.Uid);
open.TreeConnect = connection.GetTreeConnect(smbHeader.Tid);
if (open.TreeConnect == null)
{
break;
}
open.TreeConnect.AddOpen(open);
}
break;
case SmbCommand.SMB_COM_CLOSE:
{
SmbCloseRequestPacket closeRequest = requestPacket as SmbCloseRequestPacket;
SmbServerTreeConnect treeconnect = connection.GetTreeConnect(requestPacket.SmbHeader.Tid);
if (treeconnect == null)
{
break;
}
treeconnect.RemoveOpen(treeconnect.GetOpen(closeRequest.SmbParameters.FID));
}
break;
default:
break;
}
connection.RemoveRequestPacket(packet);
}
