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344 lines
7.7 KiB
344 lines
7.7 KiB
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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browsenet.h
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Abstract:
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Private header file to be included by Browser service modules that
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need to deal with the network specific browser tables.
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Author:
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Rita Wong (ritaw) 22-May-1991
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Revision History:
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--*/
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#ifndef _BROWSENET_INCLUDED_
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#define _BROWSENET_INCLUDED_
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#define NETWORK_BECOME_MASTER_POSTED 0x00000001
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#define NETWORK_ANNOUNCE_NEEDED 0x00000002
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#define NETWORK_GET_MASTER_ANNOUNCE_POSTED 0x00000008
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#define NETWORK_WANNISH 0x80000000
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#define NETWORK_RAS 0x40000000
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#define NETWORK_IPX 0x20000000
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#define NETWORK_BOUND 0x10000000
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#define NETWORK_PDC 0x08000000
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#define OTHERDOMAIN_INVALID 0x00000001
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typedef struct _NET_OTHER_DOMAIN {
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LIST_ENTRY Next;
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ULONG Flags;
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WCHAR Name[DNLEN+1];
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} NET_OTHER_DOMAIN, *PNET_OTHER_DOMAIN;
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//
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// Network.
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//
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// Almost all of the browser data structures are tied to the "Network"
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// structure.
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//
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// It contains the browse list for the network and information about the
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// domain (including the name of the master, etc).
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//
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typedef struct _NETWORK {
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//
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// The Lock protects the contents of the network structure, including
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// the browse list, backup list and domain list.
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//
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RTL_RESOURCE Lock;
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LONG LockCount;
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ULONG Flags;
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//
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// The NextNet list links the structure to other networks.
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//
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LIST_ENTRY NextNet;
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//
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// Domain this network is specific to
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//
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PDOMAIN_INFO DomainInfo;
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//
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// The ReferenceCount indicates the number of threads accessing this
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// network structure.
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//
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ULONG ReferenceCount;
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//
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// The NetworkName is the name of the network driver that is used
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// to access the network. This is used to identify the network
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// to the bowser driver so it can return the correct network list.
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//
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UNICODE_STRING NetworkName; // Name of network (\Device\Nbf)
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struct _NETWORK *AlternateNetwork; // Alternate name for network (if IPX).
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//
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// This is a bitmask indicating the role of this browser server.
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//
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ULONG Role;
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ULONG MasterAnnouncementIndex;
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ULONG UpdateAnnouncementIndex;
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ULONG NumberOfFailedBackupTimers;
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ULONG NumberOfFailedPromotions;
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ULONG NumberOfPromotionEventsLogged;
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LONG LastBackupBrowserReturned;
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LONG LastDomainControllerBrowserReturned;
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//
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// The time we stopped being a backup browser.
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//
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ULONG TimeStoppedBackup;
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//
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// The UncMasterBrowserName contains the name of the master browser server
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// for this network.
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//
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WCHAR UncMasterBrowserName[UNCLEN+1]; // Name of master browser server
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//
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// Timer used when server is a backup browser server.
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//
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// When it expires, the browser downloads a new browser server
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// list from the master browser server.
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//
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BROWSER_TIMER BackupBrowserTimer;
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//
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// Timer used if SMB server refuses an announcement
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//
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BROWSER_TIMER UpdateAnnouncementTimer;
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//
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// Server and domain list for backup browser (and # of entries in each).
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//
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PSERVER_INFO_101 BackupServerList;
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DWORD TotalBackupServerListEntries;
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DWORD BytesToHoldBackupServerList;
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PSERVER_INFO_101 BackupDomainList;
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DWORD TotalBackupDomainListEntries;
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DWORD BytesToHoldBackupDomainList;
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//
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// Lock protecting MasterFlags section of Network structure.
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//
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ULONG MasterFlags;
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ULONG MasterBrowserTimerCount; // # of times we've run the master timer.
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//
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// Master browsers maintain their server list in an "interim server
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// list", not as raw data from the server.
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//
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ULONG LastBowserServerQueried;
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INTERIM_SERVER_LIST BrowseTable; // Browse list for network.
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ULONG LastBowserDomainQueried;
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INTERIM_SERVER_LIST DomainList; // List of domains active on network
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//
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// If the browser's role is MasterBrowserServer, then the
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// OtherDomainsList contains the list of other domains.
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//
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LIST_ENTRY OtherDomainsList; // List of domain master browser.
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//
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// Timer used when server is a master browser server.
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//
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// When it expires, the master browser downloads a new browser
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// server list from the domain master browser server
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//
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BROWSER_TIMER MasterBrowserTimer;
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//
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// Timer used to announce the domain.
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//
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BROWSER_TIMER MasterBrowserAnnouncementTimer;
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//
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// List of cached browser responses.
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//
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CRITICAL_SECTION ResponseCacheLock;
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LIST_ENTRY ResponseCache;
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//
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// For browse masters, this is the time the cache was last flushed.
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//
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// Every <n> seconds, we will age the cache on the master and refresh
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// the list with the list from the driver.
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//
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DWORD TimeCacheFlushed;
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DWORD NumberOfCachedResponses;
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// How many times have we failed to access this network in a row
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LONG NetworkAccessFailures;
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} NETWORK, *PNETWORK;
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#if DBG
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BOOL
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BrLockNetwork(
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IN PNETWORK Network,
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IN PCHAR FileName,
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IN ULONG LineNumber
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);
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BOOL
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BrLockNetworkShared(
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IN PNETWORK Network,
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IN PCHAR FileName,
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IN ULONG LineNumber
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);
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VOID
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BrUnlockNetwork(
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IN PNETWORK Network,
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IN PCHAR FileName,
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IN ULONG LineNumber
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);
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#define LOCK_NETWORK(Network) BrLockNetwork(Network, __FILE__, __LINE__)
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#define LOCK_NETWORK_SHARED(Network) BrLockNetworkShared(Network, __FILE__, __LINE__)
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#define UNLOCK_NETWORK(Network) BrUnlockNetwork(Network, __FILE__, __LINE__)
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#else
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#define LOCK_NETWORK(Network) RtlAcquireResourceExclusive(&(Network)->Lock, TRUE)
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#define LOCK_NETWORK_SHARED(Network) RtlAcquireResourceShared(&(Network)->Lock, TRUE)
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#define UNLOCK_NETWORK(Network) RtlReleaseResource(&(Network)->Lock)
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#endif
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//
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// The NET_ENUM_CALLBACK is a callback for BrEnumerateNetworks.
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//
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// It defines a routine that takes two parameters, the first is a network
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// structure, the second is a context for that network.
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//
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typedef
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NET_API_STATUS
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(*PNET_ENUM_CALLBACK)(
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PNETWORK Network,
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PVOID Context
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);
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VOID
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BrInitializeNetworks(
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VOID
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);
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VOID
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BrUninitializeNetworks(
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IN ULONG BrInitState
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);
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PNETWORK
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BrReferenceNetwork(
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PNETWORK PotentialNetwork
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);
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VOID
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BrDereferenceNetwork(
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IN PNETWORK Network
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);
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PNETWORK
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BrFindNetwork(
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PDOMAIN_INFO DomainInfo,
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PUNICODE_STRING TransportName
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);
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PNETWORK
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BrFindWannishMasterBrowserNetwork(
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PDOMAIN_INFO DomainInfo
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);
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VOID
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BrDumpNetworks(
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VOID
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);
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NET_API_STATUS
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BrEnumerateNetworks(
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PNET_ENUM_CALLBACK Callback,
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PVOID Context
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);
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NET_API_STATUS
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BrEnumerateNetworksForDomain(
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PDOMAIN_INFO DomainInfo,
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PNET_ENUM_CALLBACK Callback,
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PVOID Context
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);
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NET_API_STATUS
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BrCreateNetworks(
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PDOMAIN_INFO DomainInfo
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);
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NET_API_STATUS
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BrCreateNetwork(
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PUNICODE_STRING TransportName,
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IN ULONG TransportFlags,
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IN PUNICODE_STRING AlternateTransportName OPTIONAL,
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IN PDOMAIN_INFO DomainInfo
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);
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NET_API_STATUS
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BrDeleteNetwork(
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IN PNETWORK Network,
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IN PVOID Context
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);
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extern ULONG NumberOfServicedNetworks;
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extern CRITICAL_SECTION NetworkCritSect;
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#endif // _BROWSENET_INCLUDED_
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