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108 lines
3.5 KiB
108 lines
3.5 KiB
/*++
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*****************************************************************************
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* *
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* This software contains proprietary and confidential information of *
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* *
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* Digi International Inc. *
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* *
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* By accepting transfer of this copy, Recipient agrees to retain this *
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* software in confidence, to prevent disclosure to others, and to make *
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* no use of this software other than that for which it was delivered. *
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* This is an unpublished copyrighted work of Digi International Inc. *
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* Except as permitted by federal law, 17 USC 117, copying is strictly *
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* prohibited. *
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* *
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*****************************************************************************
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Module Name:
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dgatlas.c
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Abstract:
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This module is responsible for Atlas functionality common to all
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drivers.
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--*/
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#include <ntddk.h>
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NTSTATUS DigiRegisterAtlasName( IN PUNICODE_STRING DeviceName,
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IN PUNICODE_STRING ValueName,
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IN PUNICODE_STRING ValueEntry )
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/*++
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Routine Description:
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This routine will register the passed in value name and its associated
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value for Atlas to find. In addition, we will create a symbolic
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link to a name which is accessible for Atlas to open and exchange
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information.
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Arguments:
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DeviceName - pointer to unicode string to use when creating a
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symbolic link. It is assumed this device name is all ready
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created and ready to have symbolic links created.
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ValueName - pointer to unicode string to be used as the registry
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value name.
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Value - pointer to unicode string to be used as the value associated
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with ValueName.
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Return Value:
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- STATUS_SUCCESS if successful
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- Error indicating problem
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--*/
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{
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#define DEFAULT_DIGI_ATLAS_DEVICEMAP L"DigiAtlas"
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NTSTATUS Status;
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UNICODE_STRING LinkName;
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WCHAR LinkNameBuffer[32];
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//
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// First, we create the required link symbolic name from the passed
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// in value name.
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//
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RtlInitUnicodeString( &LinkName, NULL );
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LinkName.Buffer = &LinkNameBuffer[0];
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LinkName.MaximumLength = sizeof(LinkNameBuffer);
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LinkName.Length = 0;
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RtlAppendUnicodeToString( &LinkName, L"\\DosDevices\\" );
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RtlAppendUnicodeStringToString( &LinkName, ValueEntry );
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//
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// Create the symbolic link first.
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//
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Status = IoCreateSymbolicLink( &LinkName,
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DeviceName );
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if( NT_ERROR(Status) )
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return( Status );
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//
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// We need to add a \\.\ to the beginning of ValueEntry.
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//
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LinkName.Length = 0;
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RtlZeroMemory( LinkName.Buffer, LinkName.MaximumLength );
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RtlAppendUnicodeToString( &LinkName, L"\\\\.\\" );
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RtlAppendUnicodeStringToString( &LinkName, ValueEntry );
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Status = RtlWriteRegistryValue( RTL_REGISTRY_DEVICEMAP,
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DEFAULT_DIGI_ATLAS_DEVICEMAP,
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ValueName->Buffer,
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REG_SZ,
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LinkName.Buffer,
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LinkName.Length + sizeof(WCHAR) );
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return( Status );
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} // end DigiRegisterAtlasName
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