351 lines
9.6 KiB
C
351 lines
9.6 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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brwan.c
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Abstract:
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This module contains WAN support routines used by the
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Browser service.
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Author:
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Larry Osterman (LarryO) 22-Nov-1992
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Revision History:
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--*/
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#include "precomp.h"
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#pragma hdrstop
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//-------------------------------------------------------------------//
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// //
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// Local function prototypes //
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// //
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//-------------------------------------------------------------------//
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NET_API_STATUS
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BrAddDomainEntry(
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IN PINTERIM_SERVER_LIST InterimServerList,
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IN LPTSTR ConfigEntry
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);
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//-------------------------------------------------------------------//
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// //
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// Global variables //
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// //
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//-------------------------------------------------------------------//
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//-------------------------------------------------------------------//
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// //
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// Global routines //
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// //
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//-------------------------------------------------------------------//
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NET_API_STATUS NET_API_FUNCTION
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I_BrowserrQueryOtherDomains(
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IN BROWSER_IDENTIFY_HANDLE ServerName,
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IN OUT LPSERVER_ENUM_STRUCT InfoStruct,
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OUT LPDWORD TotalEntries
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)
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/*++
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Routine Description:
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This routine returns the list of "other domains" configured for this
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machine. It is only valid on primary domain controllers. If it is called
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on a machine that is not a PDC, it will return NERR_NotPrimary.
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Arguments:
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IN BROWSER_IDENTIFY_HANDLE ServerName - Ignored.
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IN LPSERVER_ENUM_STRUCT InfoStruct - Returns the list of other domains
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as a SERVER_INFO_100 structure.
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OUT LPDWORD TotalEntries - Returns the total number of other domains.
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Return Value:
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NET_API_STATUS - The status of this request.
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--*/
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{
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NET_API_STATUS Status;
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PSERVER_INFO_100 ServerInfo;
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ULONG NumberOfOtherDomains;
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if ( InfoStruct == NULL ) {
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return ERROR_INVALID_PARAMETER;
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}
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if (InfoStruct->Level != 100) {
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return(ERROR_INVALID_LEVEL);
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}
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if ( InfoStruct->ServerInfo.Level100 == NULL ) {
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return ERROR_INVALID_PARAMETER;
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}
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//
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// Use the worker routine to do the actual work.
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//
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Status = BrQueryOtherDomains( &ServerInfo, &NumberOfOtherDomains );
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if ( Status == NERR_Success ) {
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*TotalEntries = NumberOfOtherDomains;
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InfoStruct->ServerInfo.Level100->Buffer = ServerInfo;
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InfoStruct->ServerInfo.Level100->EntriesRead = NumberOfOtherDomains;
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}
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return Status;
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}
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NET_API_STATUS
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BrWanMasterInitialize(
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IN PNETWORK Network
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)
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/*++
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Routine Description:
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This routine initializes the wan information for a new master.
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--*/
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{
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LPBYTE Buffer = NULL;
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PSERVER_INFO_100 ServerInfo;
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NET_API_STATUS Status;
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ULONG i;
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ULONG EntriesRead;
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ULONG TotalEntries;
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PDOMAIN_CONTROLLER_INFO pDcInfo=NULL;
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//
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// If we're on the PDC, then all our initialization has been done.
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// Or, if we're semi-pseudo server, we don't contact the PDC/BDC
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//
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#ifdef ENABLE_PSEUDO_BROWSER
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if ( (Network->Flags & NETWORK_PDC) ||
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BrInfo.PseudoServerLevel == BROWSER_SEMI_PSEUDO_NO_DMB ) {
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#else
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if ( Network->Flags & NETWORK_PDC ) {
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#endif
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return NERR_Success;
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}
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Status = DsGetDcName( NULL, NULL, NULL, NULL,
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DS_PDC_REQUIRED |
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DS_BACKGROUND_ONLY |
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DS_RETURN_FLAT_NAME,
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&pDcInfo );
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//
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// It is not an error to not be able to contact the PDC.
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//
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if (Status != NERR_Success) {
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return NERR_Success;
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}
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ASSERT ( pDcInfo &&
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pDcInfo->DomainControllerName );
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Status = I_BrowserQueryOtherDomains(pDcInfo->DomainControllerName,
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&Buffer,
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&EntriesRead,
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&TotalEntries);
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//
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// We don't need the PDC name any more.
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//
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NetApiBufferFree((LPVOID)pDcInfo);
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pDcInfo = NULL;
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if (Status != NERR_Success) {
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//
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// We failed to get the list from supposedly the PDC.
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// It could be that the role has changed & DsGetDcName's cache
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// hasn't got refreshed.
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//
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// Force PDC discovery so that next time around we're sure
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// to get the real PDC.
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//
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Status = DsGetDcName( NULL, NULL, NULL, NULL,
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DS_PDC_REQUIRED |
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DS_FORCE_REDISCOVERY | // Note FORCE option
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DS_RETURN_FLAT_NAME,
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&pDcInfo );
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if (Status != NERR_Success) {
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return NERR_Success;
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}
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ASSERT ( pDcInfo &&
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pDcInfo->DomainControllerName );
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Status = I_BrowserQueryOtherDomains(pDcInfo->DomainControllerName,
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&Buffer,
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&EntriesRead,
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&TotalEntries);
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//
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// We don't need the PDC name any more.
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//
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NetApiBufferFree((LPVOID)pDcInfo);
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if (Status != NERR_Success) {
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return NERR_Success;
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}
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}
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if (!LOCK_NETWORK(Network)) {
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return NERR_InternalError;
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}
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try {
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PLIST_ENTRY Entry;
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PLIST_ENTRY NextEntry;
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//
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// Scan the other domains list and turn on the active bit for each
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// other domain.
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//
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for (Entry = Network->OtherDomainsList.Flink;
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Entry != &Network->OtherDomainsList ;
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Entry = Entry->Flink) {
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PNET_OTHER_DOMAIN OtherDomain = CONTAINING_RECORD(Entry, NET_OTHER_DOMAIN, Next);
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OtherDomain->Flags |= OTHERDOMAIN_INVALID;
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}
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ServerInfo = (PSERVER_INFO_100)Buffer;
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for (i = 0; i < EntriesRead; i++ ) {
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//
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// Add this as an other domain.
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//
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for (Entry = Network->OtherDomainsList.Flink;
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Entry != &Network->OtherDomainsList ;
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Entry = Entry->Flink) {
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PNET_OTHER_DOMAIN OtherDomain = CONTAINING_RECORD(Entry, NET_OTHER_DOMAIN, Next);
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//
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// If this name is in the other domains list, it's not invalid
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// and we should flag that we've seen the domain name.
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//
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// The list we're getting is over the net. Make sure serverinfo
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// contains a valid name for comparison (see bug 377078)
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// Skip processing if NULL.
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// If ServerInfo got NULLED out in prev run, we shouldn't
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// get into _wcsicmp.
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if (ServerInfo->sv100_name &&
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!_wcsicmp(OtherDomain->Name, ServerInfo->sv100_name)) {
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OtherDomain->Flags &= ~OTHERDOMAIN_INVALID;
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ServerInfo->sv100_name = NULL;
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}
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}
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ServerInfo ++;
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}
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//
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// Scan the other domains list and remove any domains that are
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// still marked as invalid.
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//
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for (Entry = Network->OtherDomainsList.Flink;
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Entry != &Network->OtherDomainsList ;
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Entry = NextEntry) {
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PNET_OTHER_DOMAIN OtherDomain = CONTAINING_RECORD(Entry, NET_OTHER_DOMAIN, Next);
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if (OtherDomain->Flags & OTHERDOMAIN_INVALID) {
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NextEntry = Entry->Flink;
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//
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// Remove this entry from the list.
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//
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RemoveEntryList(Entry);
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BrRemoveOtherDomain(Network, OtherDomain->Name);
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MIDL_user_free(OtherDomain);
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} else {
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NextEntry = Entry->Flink;
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}
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}
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//
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// Now scan the domain list from the PDC and add any entries that
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// weren't there already.
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//
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ServerInfo = (PSERVER_INFO_100)Buffer;
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for (i = 0; i < EntriesRead; i++ ) {
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if (ServerInfo->sv100_name != NULL) {
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PNET_OTHER_DOMAIN OtherDomain = MIDL_user_allocate(sizeof(NET_OTHER_DOMAIN));
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if (OtherDomain != NULL) {
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Status = BrAddOtherDomain(Network, ServerInfo->sv100_name);
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//
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// If we were able to add the other domain, add it to our
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// internal structure.
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//
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if (Status == NERR_Success) {
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wcscpy(OtherDomain->Name, ServerInfo->sv100_name);
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OtherDomain->Flags = 0;
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InsertHeadList(&Network->OtherDomainsList, &OtherDomain->Next);
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} else {
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LPWSTR SubString[1];
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SubString[0] = ServerInfo->sv100_name;
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BrLogEvent(EVENT_BROWSER_OTHERDOMAIN_ADD_FAILED, Status, 1, SubString);
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}
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}
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}
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ServerInfo ++;
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}
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} finally {
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UNLOCK_NETWORK(Network);
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if (Buffer != NULL) {
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MIDL_user_free(Buffer);
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}
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}
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return NERR_Success;
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}
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