91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
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/*************************************************************************
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*
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* channel.c
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*
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* WinStation channel routines
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*
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* Copyright Microsoft Corporation, 1998
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*
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*
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*************************************************************************/
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/*
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* Includes
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*/
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#include "precomp.h"
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#pragma hdrstop
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NTSTATUS
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WinStationOpenChannel (
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HANDLE IcaDevice,
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HANDLE ProcessHandle,
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CHANNELCLASS ChannelClass,
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PVIRTUALCHANNELNAME pVirtualName,
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PHANDLE pDupChannel
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)
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{
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NTSTATUS Status;
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HANDLE ChannelHandle;
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Status = IcaChannelOpen( IcaDevice,
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ChannelClass,
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pVirtualName,
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&ChannelHandle );
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if ( !NT_SUCCESS( Status ) ) {
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TRACE((hTrace,TC_ICASRV,TT_ERROR, "TERMSRV: WinStationOpenChannel, IcaChannelOpen 0x%x\n",
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Status ));
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return Status;
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}
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Status = NtDuplicateObject( NtCurrentProcess(),
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ChannelHandle,
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ProcessHandle,
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pDupChannel,
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0,
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0,
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DUPLICATE_SAME_ACCESS );
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if ( !NT_SUCCESS( Status ) ) {
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TRACE((hTrace,TC_ICASRV,TT_ERROR, "TERMSRV: WinStationOpenChannel, NtDuplicateObject 0x%x\n",
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Status ));
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(void) IcaChannelClose( ChannelHandle );
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return Status;
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}
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Status = IcaChannelClose( ChannelHandle );
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TRACE((hTrace,TC_ICASRV,TT_API1, "TERMSRV: WinStationOpenChannel status 0x%x\n", Status ));
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return Status;
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}
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/*
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* Disable virtual channel depending on the WinStation configuration.
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* This was supposed to be for security purposes (Web client).
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*
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* Notes:
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* This doesn't protect the client since it's a host configuration option.
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* The client doesn't have to support any virtual channels.
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* It doesn't protect the host since it's the client devices you are denying
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* access to.
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* You may be adding some (fake) data security by denying the user access to
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* a client printer and disk so he can't download data.
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*/
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VOID
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VirtualChannelSecurity( PWINSTATION pWinStation )
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{
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// Check for availability
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if ( pWinStation->pWsx &&
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pWinStation->pWsx->pWsxVirtualChannelSecurity ) {
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(void) pWinStation->pWsx->pWsxVirtualChannelSecurity(
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pWinStation->pWsxContext,
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pWinStation->hIca,
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&pWinStation->Config.Config.User);
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}
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}
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