321 lines
6.6 KiB
C++
321 lines
6.6 KiB
C++
/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1993 **/
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/**********************************************************************/
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/*
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globals.cxx
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This module contains global variable definitions shared by the
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various FTPD Service components.
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Functions exported by this module:
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InitializeGlobals
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TerminateGlobals
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ReadParamsFromRegistry
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WriteParamsToRegistry
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FILE HISTORY:
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KeithMo 07-Mar-1993 Created.
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MuraliK 11-April-1995 Created new global ftp server config object
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*/
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#include "ftpdp.hxx"
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#include "acptctxt.hxx"
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#include <timer.h>
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//
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// Private constants.
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//
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#ifdef _NO_TRACING_
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#define DEFAULT_DEBUG_FLAGS 0
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#else
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#define DEFAULT_TRACE_FLAGS 0
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#endif
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#define DEFAULT_NO_EXTENDED_FILENAME 0
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//
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// Socket transfer buffer size.
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//
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DWORD g_SocketBufferSize;
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//
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// Statistics.
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//
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//
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// FTP Statistics structure.
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//
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LPFTP_SERVER_STATISTICS g_pFTPStats;
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//
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// Miscellaneous data.
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//
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//
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// The FTP Server sign-on string.
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//
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LPSTR g_FtpServiceNameString;
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//
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// key for the registry to read parameters
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//
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HKEY g_hkeyParams = NULL;
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//
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// List holding all the PASV accept context entries
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//
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LIST_ENTRY g_AcceptContextList;
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//
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// The number of threads currently blocked in Synchronous sockets
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// calls, like recv()
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//
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DWORD g_ThreadsBlockedInSyncCalls = 0;
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//
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// The maximum number of threads that will be allowed to block in
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// Synchronous sockets calls. Magic # that will be changed if the max # of
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// pool threads is less than 100.
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//
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DWORD g_MaxThreadsBlockedInSyncCalls = 100;
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//
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// The global variable lock.
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//
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CRITICAL_SECTION g_GlobalLock;
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#ifdef KEEP_COMMAND_STATS
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//
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// Lock protecting per-command statistics.
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//
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CRITICAL_SECTION g_CommandStatisticsLock;
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#endif // KEEP_COMMAND_STATS
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//
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// By default, extended characters are allowed for file/directory names
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// in the data transfer commands. Reg key can disable this.
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//
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DWORD g_fNoExtendedChars = FALSE;
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#if DBG
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//
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// Debug-specific data.
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//
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//
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// Debug output control flags.
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//
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#endif // DBG
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//
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// Public functions.
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//
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/*******************************************************************
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NAME: InitializeGlobals
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SYNOPSIS: Initializes global shared variables. Some values are
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initialized with constants, others are read from the
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configuration registry.
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RETURNS: APIERR - NO_ERROR if successful, otherwise a Win32
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error code.
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NOTES: This routine may only be called by a single thread
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of execution; it is not necessarily multi-thread safe.
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Also, this routine is called before the event logging
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routines have been initialized. Therefore, event
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logging is not available.
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HISTORY:
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KeithMo 07-Mar-1993 Created.
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MuraliK 05-April-1995 Added FTP server config object
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********************************************************************/
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APIERR
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InitializeGlobals(
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VOID
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)
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{
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APIERR err = NO_ERROR;
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DWORD dwDebugFlags;
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ACCEPT_CONTEXT_ENTRY *pAcceptEntry = NULL;
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UINT_PTR dwMaxThreads = 0;
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//
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// Setup the service sign-on string.
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//
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g_FtpServiceNameString = "Microsoft FTP Service\0"; // must be double \0 terminated
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//
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// Set up PASV accept event variables
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//
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InitializeListHead( &g_AcceptContextList );
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if ( err = CreateInitialAcceptContext() )
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{
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return err;
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}
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//
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// Create global locks.
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//
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INITIALIZE_CRITICAL_SECTION( &g_GlobalLock );
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#ifdef KEEP_COMMAND_STATS
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INITIALIZE_CRITICAL_SECTION( &g_CommandStatisticsLock );
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#endif // KEEP_COMMAND_STATS
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//
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// Create an FTP server object and load values from registry.
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//
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//
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// Connect to the registry.
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//
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err = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
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FTPD_PARAMETERS_KEY,
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0,
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KEY_ALL_ACCESS,
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&g_hkeyParams );
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if( err != NO_ERROR )
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{
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DBGPRINTF(( DBG_CONTEXT,
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"cannot open registry key %s, error %lu\n",
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FTPD_PARAMETERS_KEY,
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err ));
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//
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// Load Default values
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//
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err = NO_ERROR;
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}
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//
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// Figure out how many pool threads we can create maximally - if less than built-in
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// number, adjust accordingly
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//
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dwMaxThreads = AtqGetInfo( AtqMaxThreadLimit );
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if ( dwMaxThreads/2 < (UINT_PTR)g_MaxThreadsBlockedInSyncCalls )
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{
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g_MaxThreadsBlockedInSyncCalls = (DWORD)(dwMaxThreads/2);
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}
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DBGPRINTF((DBG_CONTEXT,
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"Max # of threads allowed to be blocked in sync calls : %d\n",
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g_MaxThreadsBlockedInSyncCalls));
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# ifdef _NO_TRACING_
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# if DBG
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dwDebugFlags = ReadRegistryDword( g_hkeyParams,
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FTPD_DEBUG_FLAGS,
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DEFAULT_DEBUG_FLAGS );
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SET_DEBUG_FLAGS( dwDebugFlags);
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# endif // DBG
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# endif
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g_fNoExtendedChars = ReadRegistryDword( g_hkeyParams,
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FTPD_NO_EXTENDED_FILENAME,
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DEFAULT_NO_EXTENDED_FILENAME );
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g_pFTPStats = new FTP_SERVER_STATISTICS;
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if ( g_pFTPStats == NULL )
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{
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err = ERROR_NOT_ENOUGH_MEMORY;
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}
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return ( err);
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} // InitializeGlobals()
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/*******************************************************************
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NAME: TerminateGlobals
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SYNOPSIS: Terminate global shared variables.
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NOTES: This routine may only be called by a single thread
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of execution; it is not necessarily multi-thread safe.
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Also, this routine is called after the event logging
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routines have been terminated. Therefore, event
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logging is not available.
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HISTORY:
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KeithMo 07-Mar-1993 Created.
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********************************************************************/
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VOID
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TerminateGlobals(
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VOID
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)
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{
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if ( g_hkeyParams != NULL) {
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RegCloseKey( g_hkeyParams);
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g_hkeyParams = NULL;
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}
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DeleteAcceptContexts();
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DeleteCriticalSection( &g_GlobalLock );
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#ifdef KEEP_COMMAND_STATS
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DeleteCriticalSection( &g_CommandStatisticsLock );
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#endif // KEEP_COMMAND_STATS
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} // TerminateGlobals
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/************************ End Of File ************************/
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