667 lines
17 KiB
C++
667 lines
17 KiB
C++
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//+----------------------------------------------------------------------------
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//
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// Copyright (C) 1996, Microsoft Corporation
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//
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// File: localvol.cxx
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//
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// Contents: Code to validate local volume knowledge with the root server
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// of the Dfs
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//
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// Classes:
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//
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// Functions: DfsManagerValidateLocalVolumes
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//
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// DfspGetRemoteConfigInfo
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// DfspValidateLocalPartition
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// DfspPruneLocalPartition
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// StringToGuid
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//
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// History: April 29, 1996 Milans Created
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//
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//-----------------------------------------------------------------------------
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//#include <ntos.h>
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//#include <ntrtl.h>
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//#include <nturtl.h>
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//#include <dfsfsctl.h>
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//#include <windows.h>
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#include <headers.hxx>
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#pragma hdrstop
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#include <dsgetdc.h>
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#include "dfsmwml.h"
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extern "C" NET_API_STATUS
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NetDfsManagerGetConfigInfo(
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LPWSTR wszServer,
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LPWSTR wszLocalVolumeEntryPath,
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GUID guidLocalVolume,
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LPDFSM_RELATION_INFO *ppDfsmRelationInfo);
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extern "C" NET_API_STATUS
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NetDfsManagerSendSiteInfo(
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LPWSTR wszServer,
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LPWSTR wszLocalVolumeEntryPath,
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LPDFS_SITELIST_INFO pSiteInfo);
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DWORD
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DfspGetRemoteConfigInfo(
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LPWSTR wszLocalVolumeEntryPath,
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LPWSTR wszLocalVolumeGuid,
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LPDFSM_RELATION_INFO *ppDfsmRelationInfo);
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VOID
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DfspValidateLocalPartition(
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LPWSTR wszLocalVolumeEntryPath,
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LPWSTR wszLocalVolumeGuid,
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LPDFSM_RELATION_INFO pDfsmRelationInfo);
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VOID
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DfspPruneLocalPartition(
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LPWSTR wszLocalVolumeEntryPath,
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LPWSTR wszLocalVolumeGuid);
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VOID StringToGuid(
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IN PWSTR pwszGuid,
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OUT GUID *pGuid);
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BOOLEAN
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DfspGetCoveredSiteInfo(
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LPWSTR ServerName,
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LPDFS_SITELIST_INFO *ppSiteInfo);
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//+----------------------------------------------------------------------------
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//
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// Function: DfsManagerValidateLocalVolumes
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//
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// Synopsis: Validates the relation info of all local volumes with the
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// Dfs Root server
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//
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// Arguments: None
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//
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// Returns: TRUE if validation attempt succeeded, FALSE if could not
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// validate all local volumes
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//
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//-----------------------------------------------------------------------------
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extern "C" BOOLEAN
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DfsManagerValidateLocalVolumes()
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{
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DWORD dwErr, i;
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HKEY hkeyLv, hkeyThisLv;
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WCHAR wszLocalVolGuid[ 2 * sizeof(GUID) + 1 ];
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BOOLEAN fValidateNextVolume;
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BOOLEAN fHaveCoveredSiteInfo;
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LPDFS_SITELIST_INFO pSiteInfo = NULL;
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if (pwszComputerName == NULL)
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return FALSE;
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//
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// Get covered site info
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//
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fHaveCoveredSiteInfo = DfspGetCoveredSiteInfo(
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pwszComputerName,
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&pSiteInfo);
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//
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// For each local volume, ask the root for its relation info and then
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// fsctl it down to the driver so it can validate its relation info.
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//
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IDfsVolInlineDebOut((DEB_TRACE, "DfsManagerValidateLocalVolumes()\n"));
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dwErr = RegOpenKey( HKEY_LOCAL_MACHINE, REG_KEY_LOCAL_VOLUMES, &hkeyLv);
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if (dwErr != ERROR_SUCCESS) {
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if (fHaveCoveredSiteInfo == TRUE) {
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MIDL_user_free(pSiteInfo);
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}
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return( FALSE );
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}
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i = 0;
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do {
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WCHAR wszEntryPath[MAX_PATH + 1];
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LPDFSM_RELATION_INFO pDfsmRelationInfo;
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fValidateNextVolume = TRUE;
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//
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// Local volumes are stored with their stringized guids as key names
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//
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dwErr = RegEnumKey(
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hkeyLv,
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i,
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wszLocalVolGuid,
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sizeof(wszLocalVolGuid) );
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if (dwErr == ERROR_SUCCESS) {
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dwErr = RegOpenKey(hkeyLv, wszLocalVolGuid, &hkeyThisLv);
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if (dwErr == ERROR_SUCCESS) {
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DWORD cbBuffer = sizeof(wszEntryPath);
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DWORD dwType;
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dwErr = RegQueryValueEx(
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hkeyThisLv,
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REG_VALUE_ENTRY_PATH,
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NULL,
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&dwType,
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(LPBYTE) wszEntryPath,
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&cbBuffer);
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RegCloseKey( hkeyThisLv );
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}
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} else if (dwErr == ERROR_NO_MORE_ITEMS) {
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fValidateNextVolume = FALSE;
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}
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if (dwErr == ERROR_SUCCESS) {
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dwErr = DfspGetRemoteConfigInfo(
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wszEntryPath,
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wszLocalVolGuid,
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&pDfsmRelationInfo);
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switch (dwErr) {
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case ERROR_SUCCESS:
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DfspValidateLocalPartition(
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wszEntryPath,
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wszLocalVolGuid,
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pDfsmRelationInfo);
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NetApiBufferFree(pDfsmRelationInfo);
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break;
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case NERR_DfsNoSuchVolume:
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case NERR_DfsNoSuchShare:
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DfspPruneLocalPartition(
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wszEntryPath,
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wszLocalVolGuid);
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break;
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case ERROR_NOT_ENOUGH_MEMORY:
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break;
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default:
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fValidateNextVolume = FALSE;
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break;
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}
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//
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// Tell the root what sites we cover
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//
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if (fHaveCoveredSiteInfo == TRUE && pwszComputerName != NULL) {
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NetDfsManagerSendSiteInfo(
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pwszComputerName, // Who's sending this
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wszEntryPath, // The dfs root to send to
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pSiteInfo); // the site info itself
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}
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}
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i++;
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} while ( fValidateNextVolume );
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RegCloseKey( hkeyLv );
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if (fHaveCoveredSiteInfo == TRUE) {
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MIDL_user_free(pSiteInfo);
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}
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IDfsVolInlineDebOut((DEB_TRACE, "DfsManagerValidateLocalVolumes: i=%d on exit\n", i));
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return( TRUE );
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}
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BOOLEAN
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DfspGetCoveredSiteInfo(
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LPWSTR ServerName,
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LPDFS_SITELIST_INFO *ppSiteInfo)
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{
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DWORD status;
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LPWSTR ThisSite;
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LPWSTR CoveredSites = NULL;
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LPDFS_SITELIST_INFO pSiteInfo = NULL;
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ULONG Size;
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ULONG cSites;
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LPWSTR pSiteName;
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LPWSTR pNames;
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ULONG iSite;
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ULONG j;
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DWORD dwType;
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DWORD dwUnused;
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ULONG cbBuffer;
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HKEY hkey;
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BOOLEAN fUsingDefault = TRUE;
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status = RegOpenKey(
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HKEY_LOCAL_MACHINE,
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REG_KEY_COVERED_SITES,
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&hkey);
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DFSM_TRACE_ERROR_HIGH(status, ALL_ERROR, DfspGetCoveredSiteInfo_Error_RegOpenKey,
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LOGSTATUS(status)
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LOGWSTR(ServerName));
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if (status == ERROR_SUCCESS) {
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status = RegQueryInfoKey(
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hkey, // Key
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NULL, // Class string
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NULL, // Size of class string
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NULL, // Reserved
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&dwUnused, // # of subkeys
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&dwUnused, // max size of subkey name
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&dwUnused, // max size of class name
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&dwUnused, // # of values
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&dwUnused, // max size of value name
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&cbBuffer, // max size of value data,
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NULL, // security descriptor
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NULL); // Last write time
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DFSM_TRACE_ERROR_HIGH(status, ALL_ERROR, DfspGetCoveredSiteInfo_Error_RegQueryInfoKey,
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LOGSTATUS(status)
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LOGWSTR(ServerName));
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//
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// Check if there's a value the same name as the servername passed in,
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// if so, use it. Else default to value REG_VALUE_COVERED_SITES.
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//
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if (status == ERROR_SUCCESS) {
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CoveredSites = (LPWSTR)MIDL_user_allocate(cbBuffer);
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if (CoveredSites != NULL) {
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status = RegQueryValueEx(
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hkey,
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ServerName,
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NULL,
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&dwType,
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(PUCHAR)CoveredSites,
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&cbBuffer);
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DFSM_TRACE_ERROR_HIGH(status, ALL_ERROR, DfspGetCoveredSiteInfo_Error_RegQueryValueEx,
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LOGSTATUS(status)
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LOGWSTR(ServerName));
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if (status == ERROR_SUCCESS && dwType == REG_MULTI_SZ) {
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fUsingDefault = FALSE;
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} else {
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status = RegQueryValueEx(
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hkey,
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REG_VALUE_COVERED_SITES,
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NULL,
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&dwType,
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(PUCHAR)CoveredSites,
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&cbBuffer);
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DFSM_TRACE_ERROR_HIGH(status, ALL_ERROR, DfspGetCoveredSiteInfo_Error_RegQueryValueEx2,
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LOGSTATUS(status)
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LOGWSTR(ServerName));
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if ( status != ERROR_SUCCESS || dwType != REG_MULTI_SZ) {
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MIDL_user_free(CoveredSites);
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CoveredSites = NULL;
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}
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}
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}
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}
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RegCloseKey( hkey );
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}
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//
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// Size the return buffer
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//
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Size = 0;
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for (cSites = 0, pNames = CoveredSites; pNames && *pNames; cSites++) {
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Size += (wcslen(pNames) + 1) * sizeof(WCHAR);
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pNames += wcslen(pNames) + 1;
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}
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//
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// Get site we belong to, if we're using the defaults
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//
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ThisSite = NULL;
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if (fUsingDefault == TRUE) {
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status = DsGetSiteName(NULL, &ThisSite);
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DFSM_TRACE_ERROR_HIGH(status, ALL_ERROR, DfspGetCoveredSiteInfo_Error_DsGetSiteName,
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LOGSTATUS(status)
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LOGWSTR(ServerName));
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if (status == NO_ERROR && ThisSite != NULL) {
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Size += (wcslen(ThisSite) + 1) * sizeof(WCHAR);
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cSites++;
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}
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}
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//
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// If no sites are configured, and we couldn't determine our site,
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// then we fail.
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//
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if (cSites == 0) {
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goto ErrorReturn;
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}
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Size += FIELD_OFFSET(DFS_SITELIST_INFO,Site[cSites]);
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pSiteInfo = (LPDFS_SITELIST_INFO)MIDL_user_allocate(Size);
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if (pSiteInfo == NULL) {
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goto ErrorReturn;
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}
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RtlZeroMemory(pSiteInfo, Size);
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pSiteInfo->cSites = cSites;
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pSiteName = (LPWSTR) ((PCHAR)pSiteInfo +
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sizeof(DFS_SITELIST_INFO) +
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sizeof(DFS_SITENAME_INFO) * (cSites - 1));
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//
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// Marshall the site strings into the buffer
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//
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||
|
|
iSite = 0;
|
||
|
|
|
||
|
|
if (ThisSite != NULL) {
|
||
|
|
|
||
|
|
wcscpy(pSiteName, ThisSite);
|
||
|
|
|
||
|
|
pSiteInfo->Site[iSite].SiteFlags = DFS_SITE_PRIMARY;
|
||
|
|
|
||
|
|
pSiteInfo->Site[iSite++].SiteName = pSiteName;
|
||
|
|
|
||
|
|
pSiteName += wcslen(ThisSite) + 1;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
for (pNames = CoveredSites; pNames && *pNames; pNames += wcslen(pNames) + 1) {
|
||
|
|
|
||
|
|
wcscpy(pSiteName, pNames);
|
||
|
|
|
||
|
|
pSiteInfo->Site[iSite++].SiteName = pSiteName;
|
||
|
|
|
||
|
|
pSiteName += wcslen(pSiteName) + 1;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
*ppSiteInfo = pSiteInfo;
|
||
|
|
|
||
|
|
if (CoveredSites != NULL) {
|
||
|
|
|
||
|
|
MIDL_user_free(CoveredSites);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
|
||
|
|
ErrorReturn:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Free anything we allocated
|
||
|
|
//
|
||
|
|
|
||
|
|
if (pSiteInfo != NULL) {
|
||
|
|
|
||
|
|
MIDL_user_free(pSiteInfo);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if (CoveredSites != NULL) {
|
||
|
|
|
||
|
|
MIDL_user_free(CoveredSites);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//+----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: DfspGetRemoteConfigInfo
|
||
|
|
//
|
||
|
|
// Synopsis: Gets the config info for a local volume from the Dfs root
|
||
|
|
// server.
|
||
|
|
//
|
||
|
|
// Arguments: [wszLocalVolumeEntryPath] -- Entry path of local volume.
|
||
|
|
//
|
||
|
|
// [wszLocalVolumeGuid] -- Stringized guid of local volume.
|
||
|
|
//
|
||
|
|
// [ppDfsmRelationInfo] -- On successful return, contains pointer
|
||
|
|
// to allocated DFSM_RELATION_INFO structure.
|
||
|
|
//
|
||
|
|
// Returns: Error code from NetDfsManagerGetConfigInfo or
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
DWORD
|
||
|
|
DfspGetRemoteConfigInfo(
|
||
|
|
LPWSTR wszLocalVolumeEntryPath,
|
||
|
|
LPWSTR wszLocalVolumeGuid,
|
||
|
|
LPDFSM_RELATION_INFO *ppDfsmRelationInfo)
|
||
|
|
{
|
||
|
|
DWORD dwErr;
|
||
|
|
GUID guidLocalVolume;
|
||
|
|
|
||
|
|
if (pwszComputerName == NULL)
|
||
|
|
return ERROR_INVALID_PARAMETER;
|
||
|
|
|
||
|
|
StringToGuid( wszLocalVolumeGuid, &guidLocalVolume );
|
||
|
|
|
||
|
|
dwErr = NetDfsManagerGetConfigInfo(
|
||
|
|
pwszComputerName,
|
||
|
|
wszLocalVolumeEntryPath,
|
||
|
|
guidLocalVolume,
|
||
|
|
ppDfsmRelationInfo);
|
||
|
|
|
||
|
|
DFSM_TRACE_ERROR_HIGH(dwErr, ALL_ERROR, DfspGetRemoteConfigInfo_Error_NetDfsManagerGetConfigInfo,
|
||
|
|
LOGSTATUS(dwErr)
|
||
|
|
LOGWSTR(wszLocalVolumeEntryPath));
|
||
|
|
|
||
|
|
return( dwErr );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//+----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: DfspValidateLocalPartition
|
||
|
|
//
|
||
|
|
// Synopsis: Given a remote config info, this API will fsctl to the local
|
||
|
|
// dfs driver to take actions and match up its local volume info
|
||
|
|
// with the remote one.
|
||
|
|
//
|
||
|
|
// Arguments: [wszLocalVolumeEntryPath] -- local volume entry path to
|
||
|
|
// validate
|
||
|
|
// [wszLocalVolumeGuid] -- Guid of local volume to validate
|
||
|
|
// [pDfsmRelationInfo] -- The DFSM_RELATION_INFO that this local
|
||
|
|
// volume should have.
|
||
|
|
//
|
||
|
|
// Returns: Nothing
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
VOID
|
||
|
|
DfspValidateLocalPartition(
|
||
|
|
LPWSTR wszLocalVolumeEntryPath,
|
||
|
|
LPWSTR wszLocalVolumeGuid,
|
||
|
|
LPDFSM_RELATION_INFO pDfsmRelationInfo)
|
||
|
|
{
|
||
|
|
DFS_PKT_RELATION_INFO DfsRelationInfo;
|
||
|
|
DWORD i;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Massage the DFSM_RELATION_INFO into a DFS_PKT_RELATION_INFO
|
||
|
|
//
|
||
|
|
|
||
|
|
StringToGuid( wszLocalVolumeGuid, &DfsRelationInfo.EntryId.Uid );
|
||
|
|
|
||
|
|
RtlInitUnicodeString(
|
||
|
|
&DfsRelationInfo.EntryId.Prefix,
|
||
|
|
wszLocalVolumeEntryPath);
|
||
|
|
|
||
|
|
RtlInitUnicodeString( &DfsRelationInfo.EntryId.ShortPrefix, NULL );
|
||
|
|
|
||
|
|
DfsRelationInfo.SubordinateIdList =
|
||
|
|
new DFS_PKT_ENTRY_ID[ pDfsmRelationInfo->cSubordinates ];
|
||
|
|
|
||
|
|
if (DfsRelationInfo.SubordinateIdList == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
|
||
|
|
DfsRelationInfo.SubordinateIdCount = pDfsmRelationInfo->cSubordinates;
|
||
|
|
|
||
|
|
for (i = 0; i < pDfsmRelationInfo->cSubordinates; i++) {
|
||
|
|
|
||
|
|
DfsRelationInfo.SubordinateIdList[i].Uid =
|
||
|
|
pDfsmRelationInfo->eid[i].idSubordinate;
|
||
|
|
|
||
|
|
RtlInitUnicodeString(
|
||
|
|
&DfsRelationInfo.SubordinateIdList[i].Prefix,
|
||
|
|
pDfsmRelationInfo->eid[i].wszSubordinate);
|
||
|
|
|
||
|
|
RtlInitUnicodeString(
|
||
|
|
&DfsRelationInfo.SubordinateIdList[i].ShortPrefix,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
PktValidateLocalVolumeInfo( &DfsRelationInfo );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//+----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: DfspPruneLocalPartition
|
||
|
|
//
|
||
|
|
// Synopsis: Deletes a local volume that the root server says is an extra
|
||
|
|
// volume.
|
||
|
|
//
|
||
|
|
// Arguments: [wszLocalVolumeEntryPath] -- local volume entry path to
|
||
|
|
// delete
|
||
|
|
// [wszLocalVolumeGuid] -- Guid of local volume to delete
|
||
|
|
//
|
||
|
|
// Returns: Nothing
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
VOID
|
||
|
|
DfspPruneLocalPartition(
|
||
|
|
LPWSTR wszLocalVolumeEntryPath,
|
||
|
|
LPWSTR wszLocalVolumeGuid)
|
||
|
|
{
|
||
|
|
DFS_PKT_ENTRY_ID EntryId;
|
||
|
|
|
||
|
|
RtlZeroMemory(&EntryId, sizeof(EntryId));
|
||
|
|
|
||
|
|
StringToGuid( wszLocalVolumeGuid, &EntryId.Uid );
|
||
|
|
|
||
|
|
RtlInitUnicodeString( &EntryId.Prefix, wszLocalVolumeEntryPath );
|
||
|
|
|
||
|
|
PktPruneLocalPartition( &EntryId );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//+----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Function: StringToGuid
|
||
|
|
//
|
||
|
|
// Synopsis: Converts a 32 wchar null terminated string to a GUID.
|
||
|
|
//
|
||
|
|
// Arguments: [pwszGuid] -- the string to convert
|
||
|
|
// [pGuid] -- Pointer to destination GUID.
|
||
|
|
//
|
||
|
|
// Returns: Nothing
|
||
|
|
//
|
||
|
|
//-----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#define HEX_DIGIT_TO_INT(d, i) \
|
||
|
|
ASSERT(((d) >= L'0' && (d) <= L'9') || \
|
||
|
|
((d) >= L'A' && (d) <= L'F')); \
|
||
|
|
if ((d) <= L'9') { \
|
||
|
|
i = (d) - L'0'; \
|
||
|
|
} else { \
|
||
|
|
i = (d) - L'A' + 10; \
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID StringToGuid(
|
||
|
|
IN PWSTR pwszGuid,
|
||
|
|
OUT GUID *pGuid)
|
||
|
|
{
|
||
|
|
PBYTE pbBuffer = (PBYTE) pGuid;
|
||
|
|
USHORT i, n;
|
||
|
|
|
||
|
|
for (i = 0; i < sizeof(GUID); i++) {
|
||
|
|
HEX_DIGIT_TO_INT(pwszGuid[2 * i], n);
|
||
|
|
pbBuffer[i] = n << 4;
|
||
|
|
HEX_DIGIT_TO_INT(pwszGuid[2 * i + 1], n);
|
||
|
|
pbBuffer[i] |= n;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|