303 lines
9.2 KiB
C
303 lines
9.2 KiB
C
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/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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Nds32W95.c
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Abstract:
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This module implements functions to Read, Add, Modify, and Remove
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NDS Objects and Attributes using the Microsoft Netware redirector.
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All functions in this file are NT specific.
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Author:
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Glenn Curtis [GlennC] 04-Jan-1996
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Glenn Curtis [GlennC] 24-Apr-1996 - Added schema APIs
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Glenn Curtis [GlennC] 20-Jun-1996 - Added search API
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Felix Wong [t-felixw] 24-Sep-1996 - Added Win95 Support
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--*/
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#include <procs.h>
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#ifdef WIN95
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#include <msnwapi.h>
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#include <utils95.h>
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#include <nw95.h>
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char ROOT_STR[] = "[Root]";
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#endif
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typedef struct
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{
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DWORD Signature;
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HANDLE NdsTree;
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DWORD ObjectId;
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DWORD ResumeId;
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DWORD NdsRawDataBuffer;
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DWORD NdsRawDataSize;
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DWORD NdsRawDataId;
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DWORD NdsRawDataCount;
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WCHAR Name[1];
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} NDS_OBJECT, * LPNDS_OBJECT;
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//
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// Flags used for the function ParseNdsUncPath()
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//
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#define PARSE_NDS_GET_TREE_NAME 0
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#define PARSE_NDS_GET_PATH_NAME 1
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#define PARSE_NDS_GET_OBJECT_NAME 2
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WORD
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ParseNdsUncPath( IN OUT LPWSTR * Result,
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IN LPWSTR ObjectPathName,
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IN DWORD flag );
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DWORD
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GetFirstNdsSubTreeEntry(
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OUT LPNDS_OBJECT lpNdsObject,
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IN DWORD BufferSize )
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{
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UNICODE_STRING UName;
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LPSTR szName;
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struct _nds_tag *pBufTag;
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PBYTE LocalBuffer;
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UINT nObjects;
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DWORD* pBuffer;
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NW_STATUS nwstatus;
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NTSTATUS ntstatus = STATUS_UNSUCCESSFUL;
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lpNdsObject->NdsRawDataSize = BufferSize;
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//
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// Determine size of NDS raw data buffer to use. Set to at least 8KB.
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//
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if ( lpNdsObject->NdsRawDataSize < 8192 )
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lpNdsObject->NdsRawDataSize = 8192;
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//
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// Create NDS raw data buffer.
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//
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lpNdsObject->NdsRawDataBuffer = (DWORD) LocalAlloc( LMEM_ZEROINIT,
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lpNdsObject->NdsRawDataSize );
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LocalBuffer = (PBYTE)LocalAlloc( LMEM_ZEROINIT,lpNdsObject->NdsRawDataSize );
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if ( lpNdsObject->NdsRawDataBuffer == 0 || LocalBuffer == 0)
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{
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KdPrint(("NWWORKSTATION: NwGetFirstNdsSubTreeEntry LocalAlloc Failed %lu\n", GetLastError()));
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ntstatus = STATUS_NO_MEMORY;
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goto Exit;
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}
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//
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// Set up to get initial NDS subordinate list.
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//
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lpNdsObject->NdsRawDataId = INITIAL_ITERATION;
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RtlInitUnicodeString( &UName, lpNdsObject->Name );
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UName.Length = ParseNdsUncPath( (LPWSTR *) &UName.Buffer,
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lpNdsObject->Name,
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PARSE_NDS_GET_PATH_NAME );
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if ( UName.Length == 0 )
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{
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szName = (LPSTR)LocalAlloc( LPTR, sizeof(char) * (strlen(ROOT_STR) + 1));
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if (szName == NULL) {
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ntstatus = STATUS_NO_MEMORY;
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goto Exit;
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};
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strcpy(szName,ROOT_STR);
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}
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else
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{
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szName = AllocateAnsiString(UName.Buffer);
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if (szName == NULL) {
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ntstatus = STATUS_NO_MEMORY;
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goto Exit;
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};
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}
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nwstatus = NDSListSubordinates(
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szName,
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LocalBuffer,
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lpNdsObject->NdsRawDataSize,
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&lpNdsObject->NdsRawDataId,
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&nObjects
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);
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ntstatus = MapNwToNtStatus(nwstatus);
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if ( ntstatus == STATUS_SUCCESS) {
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pBufTag = (struct _nds_tag *)LocalBuffer;
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pBuffer = (DWORD*)lpNdsObject->NdsRawDataBuffer;
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*pBuffer++ = (DWORD)ntstatus;
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*pBuffer++ = (DWORD)lpNdsObject->NdsRawDataId;
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*pBuffer++ = (DWORD)nObjects;
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memcpy( (LPBYTE)pBuffer,
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(char *)pBufTag->nextItem,
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pBufTag->bufEnd - (char *)pBufTag->nextItem);
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if (((PNDS_RESPONSE_SUBORDINATE_LIST)
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lpNdsObject->NdsRawDataBuffer)->SubordinateEntries != 0 ) {
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lpNdsObject->NdsRawDataCount = ((PNDS_RESPONSE_SUBORDINATE_LIST)
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lpNdsObject->NdsRawDataBuffer)->SubordinateEntries - 1;
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lpNdsObject->ResumeId = lpNdsObject->NdsRawDataBuffer +
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sizeof(NDS_RESPONSE_SUBORDINATE_LIST);
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// Successful exit
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goto Exit;
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}
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}
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// No entries
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lpNdsObject->NdsRawDataBuffer = 0;
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lpNdsObject->NdsRawDataSize = 0;
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lpNdsObject->NdsRawDataId = INITIAL_ITERATION;
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lpNdsObject->NdsRawDataCount = 0;
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lpNdsObject->ResumeId = 0;
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ntstatus = STATUS_NO_MORE_ENTRIES;
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Exit:
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if (szName)
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LocalFree(szName);
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if (LocalBuffer)
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LocalFree(LocalBuffer);
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if (ntstatus != STATUS_SUCCESS) {
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if ( lpNdsObject->NdsRawDataBuffer )
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(void) LocalFree( (HLOCAL) lpNdsObject->NdsRawDataBuffer );
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}
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return RtlNtStatusToDosError(ntstatus);
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}
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DWORD
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GetNextNdsSubTreeEntry(
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OUT LPNDS_OBJECT lpNdsObject )
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{
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NTSTATUS nwstatus;
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NTSTATUS ntstatus = STATUS_SUCCESS;
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struct _nds_tag *pBufTag;
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PBYTE pbRaw;
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DWORD dwStrLen;
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LPSTR szName;
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UINT nObjects;
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DWORD *pBuffer;
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if ( lpNdsObject->NdsRawDataCount == 0 &&
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lpNdsObject->NdsRawDataId == INITIAL_ITERATION )
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return WN_NO_MORE_ENTRIES;
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if ( lpNdsObject->NdsRawDataCount == 0 &&
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lpNdsObject->NdsRawDataId != INITIAL_ITERATION )
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{
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PBYTE LocalBuffer;
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UNICODE_STRING UName;
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LocalBuffer = (PBYTE) LocalAlloc( LMEM_ZEROINIT,lpNdsObject->NdsRawDataSize );
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if ( lpNdsObject->NdsRawDataBuffer == 0 || LocalBuffer == 0)
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{
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KdPrint(("NWWORKSTATION: NwGetFirstNdsSubTreeEntry LocalAlloc Failed %lu\n", GetLastError()));
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ntstatus = STATUS_NO_MEMORY;
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goto Exit;
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}
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RtlInitUnicodeString( &UName, lpNdsObject->Name );
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UName.Length = ParseNdsUncPath( (LPWSTR *) &UName.Buffer,
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lpNdsObject->Name,
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PARSE_NDS_GET_PATH_NAME );
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if ( UName.Length == 0 )
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{
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szName = (LPSTR)LocalAlloc( LPTR, sizeof(char) * (strlen(ROOT_STR) + 1));
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if (szName == NULL) {
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ntstatus = STATUS_NO_MEMORY;
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goto Exit;
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};
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strcpy(szName,ROOT_STR);
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}
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else
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{
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szName = AllocateAnsiString(UName.Buffer);
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if (szName == NULL) {
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ntstatus = STATUS_NO_MEMORY;
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goto Exit;
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};
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}
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nwstatus = NDSListSubordinates(
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szName,
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(LPBYTE)LocalBuffer,
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lpNdsObject->NdsRawDataSize,
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&lpNdsObject->NdsRawDataId,
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&nObjects
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);
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ntstatus = MapNwToNtStatus(nwstatus);
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if (ntstatus == STATUS_SUCCESS) {
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pBufTag = (struct _nds_tag *)LocalBuffer;
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pBuffer = (DWORD*)lpNdsObject->NdsRawDataBuffer;
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*pBuffer++ = (DWORD)ntstatus;
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*pBuffer++ = (DWORD)lpNdsObject->NdsRawDataId;
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*pBuffer++ = (DWORD)nObjects;
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memcpy( (LPBYTE)pBuffer,
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(char *)pBufTag->nextItem,
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pBufTag->bufEnd - (char *)pBufTag->nextItem);
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lpNdsObject->NdsRawDataCount = ((PNDS_RESPONSE_SUBORDINATE_LIST)
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lpNdsObject->NdsRawDataBuffer)->SubordinateEntries - 1;
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lpNdsObject->ResumeId = lpNdsObject->NdsRawDataBuffer +
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sizeof(NDS_RESPONSE_SUBORDINATE_LIST);
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}
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Exit:
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if (LocalBuffer)
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LocalFree(LocalBuffer);
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if (szName)
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LocalFree(szName);
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if (ntstatus != STATUS_SUCCESS)
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{
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if ( lpNdsObject->NdsRawDataBuffer )
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(void) LocalFree( (HLOCAL) lpNdsObject->NdsRawDataBuffer );
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lpNdsObject->NdsRawDataBuffer = 0;
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lpNdsObject->NdsRawDataSize = 0;
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lpNdsObject->NdsRawDataId = INITIAL_ITERATION;
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lpNdsObject->NdsRawDataCount = 0;
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return WN_NO_MORE_ENTRIES;
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}
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return RtlNtStatusToDosError(ntstatus);
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}
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lpNdsObject->NdsRawDataCount--;
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//
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// Move pointer past the fixed header portion of a
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// NDS_RESPONSE_SUBORDINATE_ENTRY
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//
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pbRaw = (BYTE *) lpNdsObject->ResumeId;
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pbRaw += sizeof(NDS_RESPONSE_SUBORDINATE_ENTRY);
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//
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// Move pointer past the length value of the Class Name string
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// of a NDS_RESPONSE_SUBORDINATE_ENTRY
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//
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dwStrLen = * (DWORD *) pbRaw;
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pbRaw += sizeof(DWORD);
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//
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// Move pointer past the Class Name string of a
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// NDS_RESPONSE_SUBORDINATE_ENTRY
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//
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pbRaw += ROUNDUP4( dwStrLen );
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//
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// Move pointer past the length value of the Object Name string
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// of a NDS_RESPONSE_SUBORDINATE_ENTRY
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//
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dwStrLen = * (DWORD *) pbRaw;
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pbRaw += sizeof(DWORD);
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lpNdsObject->ResumeId = (DWORD) ( pbRaw + ROUNDUP4( dwStrLen ) );
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return RtlNtStatusToDosError(ntstatus);
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}
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