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/*++
Copyright (c) 1994 Microsoft Corporation
Module Name:
ftpconf.cxx
Abstract:
This module contains functions for FTP Server configuration class (FTP_SERVER_CONFIG).
Author:
Murali R. Krishnan (MuraliK) 21-March-1995
Project: FTP Server DLL
Functions Exported:
FTP_SERVER_CONFIG::FTP_SERVER_CONFIG() FTP_SERVER_CONFIG::~FTP_SERVER_CONFIG() FTP_SERVER_CONFIG::InitFromRegistry() FTP_SERVER_CONFIG::GetConfigInformation() FTP_SERVER_CONFIG::SetConfigInformation() FTP_SERVER_CONFIG::AllocNewConnection() FTP_SERVER_CONFIG::RemoveConnection() FTP_SERVER_CONFIG::DisconnectAllConnections()
FTP_SERVER_CONFIG::Print()
Revisions:
MuraliK 26-July-1995 Added Allocation caching of client conns.
--*/
# include "ftpdp.hxx"
#include <ole2.h>
#include <imd.h>
#include <iiscnfgp.h>
#include <mb.hxx>
#include <mbstring.h>
# include <tchar.h>
#include <timer.h>
extern "C"{ #include "ntlsa.h"
} // extern "C"
/************************************************************
* Symbolic Constants ************************************************************/
#define DEFAULT_ALLOW_ANONYMOUS TRUE
#define DEFAULT_ALLOW_GUEST_ACCESS TRUE
#define DEFAULT_ANONYMOUS_ONLY FALSE
#define DEFAULT_READ_ACCESS_MASK 0
#define DEFAULT_WRITE_ACCESS_MASK 0
#define DEFAULT_MSDOS_DIR_OUTPUT TRUE
#define DEFAULT_USE_SUBAUTH TRUE
#define DEFAULT_LOGON_METHOD LOGON32_LOGON_INTERACTIVE
#define DEFAULT_ANONYMOUS_PWD ""
const TCHAR DEFAULT_EXIT_MESSAGE[] = TEXT("Goodbye.");# define CCH_DEFAULT_EXIT_MESSAGE (lstrlen( DEFAULT_EXIT_MESSAGE) + 1)
const TCHAR DEFAULT_MAX_CLIENTS_MSG[] = TEXT("Maximum clients reached, service unavailable.");
# define CCH_DEFAULT_MAX_CLIENTS_MSG (lstrlen( DEFAULT_MAX_CLIENTS_MSG) + 1)
// this should be a double null terminated null terminated sequence.
const TCHAR DEFAULT_GREETING_MESSAGE[2] = { '\0', '\0' };# define CCH_DEFAULT_GREETING_MESSAGE ( 2)
// this should be a double null terminated null terminated sequence.
const TCHAR DEFAULT_BANNER_MESSAGE[2] = { '\0', '\0' };# define CCH_DEFAULT_BANNER_MESSAGE ( 2)
#define DEFAULT_ANNOTATE_DIRS FALSE
#define DEFAULT_LOWERCASE_FILES FALSE
#define DEFAULT_LISTEN_BACKLOG 1 /* reduce listen backlog */
#define DEFAULT_ENABLE_LICENSING FALSE
#define DEFAULT_DEFAULT_LOGON_DOMAIN NULL // NULL == use primary domain
#define DEFAULT_ENABLE_PORT_ATTACK FALSE
#define DEFAULT_ENABLE_PASV_THEFT FALSE
#define DEFAULT_ALLOW_REPLACE_ON_RENAME FALSE
#define DEFAULT_SHOW_4_DIGIT_YEAR FALSE
# define SC_NOTIFY_INTERVAL 3000 // milliseconds
# define CLEANUP_POLL_INTERVAL 2000 // milliseconds
# define CLEANUP_RETRY_COUNT 12 // iterations
//
// Private Prototypes
//
APIERRGetDefaultDomainName( CHAR * pszDomainName, DWORD cchDomainName );
BOOLFtpdReadRegString( IN HKEY hkey, OUT TCHAR * * ppchstr, IN LPCTSTR pchValue, IN LPCTSTR pchDefault, IN DWORD cchDefault );
BOOLGenMessageWithLineFeed(IN LPSTR pszzMessage, IN LPSTR * ppszMessageWithLineFeed);
#if DBG
static CHAR * p_AccessTypes[] = { "read", "write", "create", "delete" };
#endif // DBG
/************************************************************
* Member Functions of FTP_SERVER_INSTANCE ************************************************************/
FTP_SERVER_INSTANCE::FTP_SERVER_INSTANCE( IN PFTP_IIS_SERVICE pService, IN DWORD dwInstanceId, IN USHORT sPort, IN LPCSTR lpszRegParamKey, IN LPWSTR lpwszAnonPasswordSecretName, IN LPWSTR lpwszRootPasswordSecretName, IN BOOL fMigrateVroots )/*++
Description:
Constructor Function for Ftp server Configuration object ( Initializes all members to be NULL)
The valid flag may be initialized to TRUE only after reading values from registry.
--*/ : IIS_SERVER_INSTANCE( pService, dwInstanceId, sPort, lpszRegParamKey, lpwszAnonPasswordSecretName, lpwszRootPasswordSecretName, fMigrateVroots ), m_cCurrentConnections ( 0), m_cMaxCurrentConnections ( 0), m_fValid ( FALSE), m_fAllowAnonymous ( TRUE), m_fAnonymousOnly ( FALSE), m_fAllowGuestAccess ( TRUE), m_fAnnotateDirectories ( FALSE), m_fLowercaseFiles ( FALSE), m_fMsdosDirOutput ( FALSE), m_fFourDigitYear ( FALSE), m_fEnableLicensing ( FALSE), m_fEnablePortAttack ( FALSE), m_fEnablePasvTheft ( FALSE), m_pszGreetingMessageWithLineFeed( NULL), m_pszBannerMessageWithLineFeed( NULL), m_pszLocalHostName (NULL), m_dwUserFlags ( 0), m_ListenBacklog ( DEFAULT_LISTEN_BACKLOG), m_pFTPStats (NULL){
InitializeListHead( &m_ActiveConnectionsList); INITIALIZE_CRITICAL_SECTION( &m_csLock); InitializeListHead( &m_FreeConnectionsList); INITIALIZE_CRITICAL_SECTION( &m_csConnectionsList);
if( QueryServerState() == MD_SERVER_STATE_INVALID ) { return; }
m_pFTPStats = new FTP_SERVER_STATISTICS;
if ( m_pFTPStats == NULL ) { SetServerState( MD_SERVER_STATE_INVALID, ERROR_NOT_ENOUGH_MEMORY ); SetLastError( ERROR_NOT_ENOUGH_MEMORY ); }
return;
} // FTP_SERVER_INSTANCE::FTP_SERVER_INSTANCE()
FTP_SERVER_INSTANCE::~FTP_SERVER_INSTANCE( VOID)/*++
Description:
Destructor function for server config object. ( Frees all dynamically allocated storage space)--*/{ HRESULT hRes;
//
// delete statistics object
//
if( m_pFTPStats != NULL ) { delete m_pFTPStats; m_pFTPStats = NULL; }
//
// The strings are automatically freed by a call to destructor
//
if ( m_pszLocalHostName != NULL) {
delete [] ( m_pszLocalHostName); }
if ( m_pszGreetingMessageWithLineFeed != NULL) {
TCP_FREE( m_pszGreetingMessageWithLineFeed); m_pszGreetingMessageWithLineFeed = NULL; }
if ( m_pszBannerMessageWithLineFeed != NULL) {
TCP_FREE( m_pszBannerMessageWithLineFeed); m_pszBannerMessageWithLineFeed = NULL; }
m_rfAccessCheck.Reset( (IMDCOM*)m_Service->QueryMDObject() );
DBG_ASSERT( m_cCurrentConnections == 0); DBG_ASSERT( IsListEmpty( &m_ActiveConnectionsList));
LockConnectionsList(); DBG_REQUIRE(FreeAllocCachedClientConn()); UnlockConnectionsList();
DBG_ASSERT( IsListEmpty( &m_FreeConnectionsList));
//
// Delete the critical section object
//
DeleteCriticalSection( &m_csLock); DeleteCriticalSection( &m_csConnectionsList);
} /* FTP_SERVER_INSTANCE::~FTP_SERVER_INSTANCE() */
DWORDFTP_SERVER_INSTANCE::StartInstance(){ IF_DEBUG(INSTANCE) { DBGPRINTF(( DBG_CONTEXT, "FTP_SERVER_INSTANCE::StartInstance called for %p. Current state %d\n", this, QueryServerState() )); }
DBG_ASSERT(m_pFTPStats); m_pFTPStats->UpdateStopTime();
DWORD dwError = IIS_SERVER_INSTANCE::StartInstance();
if ( dwError) { IF_DEBUG(INSTANCE) { DBGPRINTF(( DBG_CONTEXT, "FTO_SERVER_INSTANCE - IIS_SERVER_INSTANCE Failed. StartInstance returned 0x%x", dwError )); }
return dwError; }
dwError = InitFromRegistry( FC_FTP_ALL & ~FC_FTP_LOG_IN_UTF_8 & ~FC_FTP_USER_ISOLATION);
if( dwError == NO_ERROR ) { dwError = ReadAuthentInfo(); }
if (dwError == NO_ERROR) { m_pFTPStats->UpdateStartTime(); }
return dwError;}
DWORDFTP_SERVER_INSTANCE::StopInstance(){ DBG_ASSERT(m_pFTPStats);
m_pFTPStats->UpdateStopTime(); return IIS_SERVER_INSTANCE::StopInstance();}
DWORDFTP_SERVER_INSTANCE::SetLocalHostName(IN LPCSTR pszHost)/*++
This function copies the host name specified in the given string to configuration object.
Arguments: pszHost pointer to string containing the local host name.
Returns: NO_ERROR on success and ERROR_NOT_ENOUGH_MEMORY when no memory. ERROR_ALREADY_ASSIGNED if value is already present.--*/{ //
// if already a host name exists, return error.
// otherwise allocate memory and copy the local host name.
//
if ( m_pszLocalHostName != NULL) {
return (ERROR_ALREADY_ASSIGNED); } else { m_pszLocalHostName = new CHAR[lstrlenA(pszHost) + 1]; if ( m_pszLocalHostName == NULL) {
return (ERROR_NOT_ENOUGH_MEMORY); }
lstrcpyA( m_pszLocalHostName, pszHost); }
return (NO_ERROR);
} // FTP_SERVER_INSTANCE::SetLocalHostName()
DWORDFTP_SERVER_INSTANCE::InitFromRegistry( IN FIELD_CONTROL FieldsToRead)/*++
Description: Initializes server configuration data from registry. Some values are also initialized with constants. If invalid registry key or load data from registry fails, then use default values.
Arguments:
hkeyReg handle to registry key
FieldsToRead bitmask indicating the fields to read from the registry. This is useful when we try to read the new values after modifying the registry information as a result of SetAdminInfo call from the Admin UI
Returns:
NO_ERROR if there are no errors. Win32 error codes otherwise
Limitations:
No validity check is performed on the data present in registry.--*/{ BOOL fSuccess = TRUE; DWORD err = NO_ERROR; IMDCOM* pMBCom; METADATA_HANDLE hMB; HRESULT hRes; METADATA_RECORD mdRecord; DWORD dwRequiredLen; BOOL fMustRel; HKEY hkeyReg = NULL; MB mb( (IMDCOM*)g_pInetSvc->QueryMDObject() ); DWORD tmp;
err = RegOpenKeyEx( HKEY_LOCAL_MACHINE, QueryRegParamKey(), 0, KEY_ALL_ACCESS, &hkeyReg );
if ( hkeyReg == INVALID_HANDLE_VALUE || hkeyReg == NULL) {
//
// Invalid Registry handle given
//
SetLastError( ERROR_INVALID_PARAMETER); return ( FALSE); }
LockConfig();
//
// Read metabase data.
//
if( !mb.Open( QueryMDPath() ) ) {
RegCloseKey( hkeyReg ); UnLockConfig(); return FALSE;
}
if( IsFieldSet( FieldsToRead, FC_FTP_EXIT_MESSAGE ) ) {
if( !mb.GetStr( "", MD_EXIT_MESSAGE, IIS_MD_UT_SERVER, &m_ExitMessage, METADATA_INHERIT, DEFAULT_EXIT_MESSAGE ) ) {
fSuccess = FALSE; err = GetLastError();
}
}
if( fSuccess && IsFieldSet( FieldsToRead, FC_FTP_GREETING_MESSAGE ) ) {
if( !mb.GetMultisz( "", MD_GREETING_MESSAGE, IIS_MD_UT_SERVER, &m_GreetingMessage ) ) {
if( !m_GreetingMessage.Copy( DEFAULT_GREETING_MESSAGE, CCH_DEFAULT_GREETING_MESSAGE ) ) {
fSuccess = FALSE; err = GetLastError();
}
}
//
// The m_pszGreetingMessage as read is a double null terminated
// seq of strings (with one string per line)
// A local copy of the string in the form suited for RPC Admin
// should be generated.
//
if( fSuccess ) {
fSuccess = GenMessageWithLineFeed( m_GreetingMessage.QueryStr(), &m_pszGreetingMessageWithLineFeed);
if( !fSuccess ) { err = GetLastError(); }
}
}
if( fSuccess && IsFieldSet( FieldsToRead, FC_FTP_BANNER_MESSAGE ) ) {
if( !mb.GetMultisz( "", MD_BANNER_MESSAGE, IIS_MD_UT_SERVER, &m_BannerMessage ) ) {
if( !m_BannerMessage.Copy( DEFAULT_BANNER_MESSAGE, CCH_DEFAULT_BANNER_MESSAGE ) ) {
fSuccess = FALSE; err = GetLastError();
}
}
//
// The m_pszBannerMessage as read is a double null terminated
// seq of strings (with one string per line)
// A local copy of the string in the form suited for RPC Admin
// should be generated.
//
if( fSuccess ) {
fSuccess = GenMessageWithLineFeed( m_BannerMessage.QueryStr(), &m_pszBannerMessageWithLineFeed);
if( !fSuccess ) { err = GetLastError(); }
}
}
if( fSuccess && IsFieldSet( FieldsToRead, FC_FTP_MAX_CLIENTS_MESSAGE ) ) {
if( !mb.GetStr( "", MD_MAX_CLIENTS_MESSAGE, IIS_MD_UT_SERVER, &m_MaxClientsMessage, METADATA_INHERIT, DEFAULT_MAX_CLIENTS_MSG ) ) {
fSuccess = FALSE; err = GetLastError();
}
}
if( IsFieldSet( FieldsToRead, FC_FTP_MSDOS_DIR_OUTPUT ) ) {
if( !mb.GetDword( "", MD_MSDOS_DIR_OUTPUT, IIS_MD_UT_SERVER, &tmp ) ) {
tmp = DEFAULT_MSDOS_DIR_OUTPUT;
}
m_fMsdosDirOutput = !!tmp; // clear and then set the MSDOS_DIR_OUTPUT in user flags
m_dwUserFlags &= ~UF_MSDOS_DIR_OUTPUT; m_dwUserFlags |= (m_fMsdosDirOutput) ? UF_MSDOS_DIR_OUTPUT : 0;
}
if( IsFieldSet( FieldsToRead, FC_FTP_SHOW_4_DIGIT_YEAR) ) {
if( !mb.GetDword( "", MD_SHOW_4_DIGIT_YEAR, IIS_MD_UT_SERVER, &tmp ) ) {
tmp = DEFAULT_SHOW_4_DIGIT_YEAR;
}
m_fFourDigitYear = !!tmp; // clear and then set the 4_DIGIT_YEAR in user flags
m_dwUserFlags &= ~UF_4_DIGIT_YEAR; m_dwUserFlags |= (m_fFourDigitYear) ? UF_4_DIGIT_YEAR : 0; }
if( IsFieldSet( FieldsToRead, FC_FTP_ALLOW_ANONYMOUS ) ) {
if( !mb.GetDword( "", MD_ALLOW_ANONYMOUS, IIS_MD_UT_SERVER, &tmp ) ) {
tmp = DEFAULT_ALLOW_ANONYMOUS;
}
m_fAllowAnonymous = !!tmp;
}
if( IsFieldSet( FieldsToRead, FC_FTP_ANONYMOUS_ONLY ) ) {
if( !mb.GetDword( "", MD_ANONYMOUS_ONLY, IIS_MD_UT_SERVER, &tmp ) ) {
tmp = DEFAULT_ANONYMOUS_ONLY;
}
m_fAnonymousOnly = !!tmp;
}
if( IsFieldSet( FieldsToRead, FC_FTP_ALLOW_REPLACE_ON_RENAME ) ) {
if( !mb.GetDword( "", MD_ALLOW_REPLACE_ON_RENAME, IIS_MD_UT_SERVER, &tmp ) ) {
tmp = DEFAULT_ALLOW_REPLACE_ON_RENAME;
}
m_fAllowReplaceOnRename = !!tmp;
}
//
// Read registry data.
//
if( IsFieldSet( FieldsToRead, FC_FTP_LISTEN_BACKLOG ) ) { m_ListenBacklog = ReadRegistryDword( hkeyReg, FTPD_LISTEN_BACKLOG, DEFAULT_LISTEN_BACKLOG ); }
if( IsFieldSet( FieldsToRead, FC_FTP_ALLOW_GUEST_ACCESS ) ) {
m_fAllowGuestAccess = !!ReadRegistryDword( hkeyReg, FTPD_ALLOW_GUEST_ACCESS, DEFAULT_ALLOW_GUEST_ACCESS ); }
if( IsFieldSet( FieldsToRead, FC_FTP_ANNOTATE_DIRECTORIES ) ) {
m_fAnnotateDirectories = !!ReadRegistryDword( hkeyReg, FTPD_ANNOTATE_DIRS, DEFAULT_ANNOTATE_DIRS );
// clear and then set the ANNOTATE_DIRS in user flags
m_dwUserFlags &= ~UF_ANNOTATE_DIRS; m_dwUserFlags |= (m_fAnnotateDirectories) ? UF_ANNOTATE_DIRS : 0; }
if( IsFieldSet( FieldsToRead, FC_FTP_LOWERCASE_FILES ) ) {
m_fLowercaseFiles = !!ReadRegistryDword( hkeyReg, FTPD_LOWERCASE_FILES, DEFAULT_LOWERCASE_FILES ); }
// fEnablePortAttack is not controlled by RPC yet.
m_fEnablePortAttack = !!ReadRegistryDword(hkeyReg, FTPD_ENABLE_PORT_ATTACK, DEFAULT_ENABLE_PORT_ATTACK);
// fEnablePasvTheft is not controlled by RPC yet.
m_fEnablePasvTheft = !!ReadRegistryDword(hkeyReg, FTPD_ENABLE_PASV_THEFT, DEFAULT_ENABLE_PASV_THEFT);
if( fSuccess ) {
//
// The following field is not supported in the admin API.
//
m_fEnableLicensing = !!ReadRegistryDword( hkeyReg, FTPD_ENABLE_LICENSING, DEFAULT_ENABLE_LICENSING );
}
if ( fSuccess ) { m_rfAccessCheck.Reset( (IMDCOM*)m_Service->QueryMDObject() );
pMBCom = (IMDCOM*)m_Service->QueryMDObject(); hRes = pMBCom->ComMDOpenMetaObject( METADATA_MASTER_ROOT_HANDLE, (BYTE *) QueryMDVRPath(), METADATA_PERMISSION_READ, 5000, &hMB ); if ( SUCCEEDED( hRes ) ) { mdRecord.dwMDIdentifier = MD_IP_SEC; mdRecord.dwMDAttributes = METADATA_INHERIT | METADATA_REFERENCE; mdRecord.dwMDUserType = IIS_MD_UT_FILE; mdRecord.dwMDDataType = BINARY_METADATA; mdRecord.dwMDDataLen = 0; mdRecord.pbMDData = (PBYTE)NULL;
hRes = pMBCom->ComMDGetMetaData( hMB, (LPBYTE)"", &mdRecord, &dwRequiredLen ); if ( SUCCEEDED( hRes ) && mdRecord.dwMDDataTag ) { m_rfAccessCheck.Set( mdRecord.pbMDData, mdRecord.dwMDDataLen, mdRecord.dwMDDataTag ); }
DBG_REQUIRE( SUCCEEDED(pMBCom->ComMDCloseMetaObject( hMB )) ); } else if( HRESULTTOWIN32( hRes ) != ERROR_PATH_NOT_FOUND ) { fSuccess = FALSE; err = HRESULTTOWIN32( hRes ); } }
UnLockConfig();
IF_DEBUG( CONFIG) { Print(); }
m_fValid = TRUE;
RegCloseKey( hkeyReg ); return ( err);
} // FTP_SERVER_INSTANCE::InitFromRegistry()
static BOOLRemoveInvalidsInPath( IN OUT TCHAR * pszPath)/*++
Eliminate path components consisting of '.' and '..' to prevent security from being overridden
Arguments:
pszPath pointer to string containing path
Returns: TRUE on success and FALSE if there is any failure--*/{ int idest; TCHAR * pszScan;
//
// Check and eliminate the invalid path components
//
for( pszScan = pszPath; *pszScan != TEXT( '\0'); pszScan++) {
if ( *pszScan == TEXT( '/')) {
//
// Check and kill invalid path components before next "\"
//
if ( *(pszScan + 1) == TEXT( '.')) {
if ( *(pszScan +2) == TEXT('/')) {
pszScan += 2; // skip the /./ pattern
} else if ( *(pszScan +2) == TEXT('.') && *(pszScan +3) == TEXT('/')) {
//
// We found the pattern /../, elimiate it
//
pszScan += 3; }
*pszPath++ = *pszScan; continue;
} // found a single /.
}
*pszPath++ = *pszScan;
} // for
*pszPath = TEXT( '\0');
return ( TRUE);
} // RemoveInvalidsInPath()
VOIDFTP_SERVER_INSTANCE::Print( VOID) const/*++
Description:
Prints the configuration information for this server. To be used in debugging mode for verification.
Returns:
None.
--*/{ DBGPRINTF(( DBG_CONTEXT, "FTP Server Configuration ( %08x).\n", this ));#if 0
READ_LOCK_INST();
DBGPRINTF(( DBG_CONTEXT, " AnonymousUser = %s\n", g_pInetSvc->QueryAnonUserName() ));
UNLOCK_INST();
DBGPRINTF(( DBG_CONTEXT, " %s = %d\n" " %s = %d\n" " %s = %u\n" " %s = %u\n" " %s = %u\n" " %s = %u\n" " %s = %u\n", FTPD_ALLOW_ANONYMOUS, m_fAllowAnonymous, FTPD_ALLOW_GUEST_ACCESS, m_fAllowGuestAccess, FTPD_ANONYMOUS_ONLY, m_fAnonymousOnly, FTPD_ENABLE_PORT_ATTACK, m_fEnablePortAttack, FTPD_ENABLE_PASV_THEFT, m_fEnablePasvTheft, "LogAnonymous", g_pInetSvc->QueryLogAnonymous(), "LogNonAnonymous", g_pInetSvc->QueryLogNonAnonymous() ));
DBGPRINTF(( DBG_CONTEXT, " %s = %d\n", FTPD_ENABLE_LICENSING, m_fEnableLicensing ));
DBGPRINTF(( DBG_CONTEXT, " MaxConnections = %lu\n", g_pInetSvc->QueryMaxConnections() ));
DBGPRINTF(( DBG_CONTEXT, " ConnectionTimeout = %lu\n", g_pInetSvc->QueryConnectionTimeout() ));
DBGPRINTF(( DBG_CONTEXT, " %s = %d\n", FTPD_MSDOS_DIR_OUTPUT, m_fMsdosDirOutput ));
DBGPRINTF(( DBG_CONTEXT, " %s = %d\n", FTPD_4_DIGIT_YEAR, m_f4DigitYear ));
DBGPRINTF(( DBG_CONTEXT, " %s = %d\n", FTPD_ANNOTATE_DIRS, m_fAnnotateDirectories ));
DBGPRINTF(( DBG_CONTEXT, " %s = %08lX\n", FTPD_DEBUG_FLAGS, GET_DEBUG_FLAGS()));
READ_LOCK_INST();
DBGPRINTF(( DBG_CONTEXT, " LogFileDirectory = %s\n", g_pInetSvc->QueryLogFileDirectory() ));
UNLOCK_INST();
DBGPRINTF(( DBG_CONTEXT, " LogFileAccess = %lu\n", g_pInetSvc->QueryLogFileType() ));
DBGPRINTF(( DBG_CONTEXT, " %s = %u\n", FTPD_LISTEN_BACKLOG, m_ListenBacklog ));
DBGPRINTF(( DBG_CONTEXT, " DefaultLogonDomain = %s\n", m_DefaultLogonDomain ));#endif
return;
} // FTP_SERVER_INSTANCE::Print()
PICLIENT_CONNECTIONFTP_SERVER_INSTANCE::AllocNewConnection()/*++
This function first checks that there is room for more connections as per the configured max connections.
If there is no more connections allowed, it returns NULL with *pfMaxExceeded = TRUE
Otherwise: This function creates a new CLIENT_CONNECTION (USER_DATA) object. The creation maybe fresh from heap or from cached free list.
It increments the counter of currnet connections and returns the allocated object (if non NULL).
We enter a critical section to avoid race condition among different threads. (this can be improved NYI).
Returns: TRUE on success and FALSE if there is max Connections exceeded.--*/{ PICLIENT_CONNECTION pConn = NULL;
LockConnectionsList();
//
// We can add this new connection
//
pConn = AllocClientConnFromAllocCache();
if ( pConn != NULL) {
//
// Increment the count of connected users
//
m_cCurrentConnections++;
IF_DEBUG( CLIENT) { DBGPRINTF((DBG_CONTEXT, " CurrentConnections = %u\n", m_cCurrentConnections)); }
//
// Update the current maximum connections
//
if ( m_cCurrentConnections > m_cMaxCurrentConnections) {
m_cMaxCurrentConnections = m_cCurrentConnections; }
//
// Insert into the list of connected users.
//
InsertTailList( &m_ActiveConnectionsList, &pConn->QueryListEntry()); }
UnlockConnectionsList();
return ( pConn);
} // FTP_SERVER_INSTANCE::AllocNewConnection()
VOIDFTP_SERVER_INSTANCE::RemoveConnection( IN OUT PICLIENT_CONNECTION pcc )/*++
--*/{
LockConnectionsList();
//
// Remove from list of connections
//
RemoveEntryList( &pcc->QueryListEntry());
//
// Decrement count of current users
//
m_cCurrentConnections--;
IF_DEBUG( CLIENT) { DBGPRINTF((DBG_CONTEXT, " CurrentConnections = %u\n", m_cCurrentConnections)); }
//
// move the free connection to free list
//
FreeClientConnToAllocCache( pcc);
UnlockConnectionsList();
} // FTP_SERVER_INSTANCE::RemoveConnection()
VOIDFTP_SERVER_INSTANCE::DisconnectAllConnections( VOID)/*++
Disconnects all user connections.
Arguments:
Instance - If NULL, then all users are disconnected. If !NULL, then only those users associated with the specified instance are disconnected.
--*/{#ifdef CHECK_DBG
CHAR rgchBuffer[90];#endif // CHECK_DBG
DWORD dwLastTick = GetTickCount(); DWORD dwCurrentTick; PLIST_ENTRY pEntry; PLIST_ENTRY pEntryNext;
DBGPRINTF( ( DBG_CONTEXT, "Entering FTP_SERVER_INSTANCE::DisconnectAllConnections()\n"));
//
// Let's empty the connection list immediately while in the lock to avoid a
// shutdown deadlock
//
LockConnectionsList();
pEntry = m_ActiveConnectionsList.Flink;
InitializeListHead( &m_ActiveConnectionsList);
UnlockConnectionsList();
//
// close down all the active sockets.
//
for( pEntryNext = pEntry->Flink; pEntry != &m_ActiveConnectionsList; pEntry = pEntryNext) {
PICLIENT_CONNECTION pConn = GET_USER_DATA_FROM_LIST_ENTRY( pEntry); pEntryNext = pEntry->Flink; // cache next entry since pConn may die
ASSERT( pConn != NULL);
# ifdef CHECK_DBG
wsprintfA( rgchBuffer, "Kill UID=%u. Ref=%u\n", pConn->QueryId(), pConn->QueryReference());
OutputDebugString( rgchBuffer);# endif // CHECK_DBG
dwCurrentTick = GetTickCount();
if ( (dwCurrentTick - dwLastTick) >= ( SC_NOTIFY_INTERVAL)) {
//
// We seem to take longer time for cleaning up than
// expected. Let us ask service controller to wait for us.
//
g_pInetSvc-> DelayCurrentServiceCtrlOperation(SC_NOTIFY_INTERVAL * 2);
dwLastTick = dwCurrentTick; }
pConn->Reference(); pConn->DisconnectUserWithError( ERROR_SERVER_DISABLED, TRUE); DBG_REQUIRE( pConn->DeReference() > 0 ); // remove ref added above
if( pConn->RemoveActiveReference() ) {
//
// This connection is due for deletion. Kill it.
//
// Remove from list of connections
//
pConn->Cleanup(); RemoveEntryList( &pConn->QueryListEntry());
//
// Decrement count of current users
//
m_cCurrentConnections--;
// move the connection to free list
FreeClientConnToAllocCache( pConn); } } // for
//
// Wait for the users to die.
// The connection objects should be automatically freed because the
// socket has been closed. Subsequent requests will fail
// and cause a blowaway of the connection objects.
//
//
// Wait for the users to die.
//
for( int i = 0 ; ( i < CLEANUP_RETRY_COUNT ) && ( m_cCurrentConnections > 0); i++ ) {
DBGPRINTF(( DBG_CONTEXT, "Sleep Iteration %d; Time=%u millisecs." " CurrentConn=%d.\n", i, CLEANUP_POLL_INTERVAL, m_cCurrentConnections));
g_pInetSvc-> DelayCurrentServiceCtrlOperation( CLEANUP_POLL_INTERVAL * 2); Sleep( CLEANUP_POLL_INTERVAL ); }
return;
} // FTP_SERVER_INSTANCE::DisconnectAllConnections()
BOOLFTP_SERVER_INSTANCE::EnumerateConnection( IN PFN_CLIENT_CONNECTION_ENUM pfnConnEnum, IN LPVOID pContext, IN DWORD dwConnectionId)/*++
This function iterates through all the connections in the current connected users list and enumerates each of them. If the connectionId matches then given callback function is called. If the ConnectionId is 0, then the callback is called for each and every connection active currently.
During such a call the reference count of the connection is bumped up. Call this function after obtaining the ConnectionsList Lock.
Arguments: pfnConnEnum pointer to function to be called when a match is found. pContext pointer to context information to be passed in for callback dwConnectionId DWORD containing the Connection Id. IF 0 match all the connections.
Returns: FALSE if no match is found TRUE if atleast one match is found.--*/{ BOOL fReturn = FALSE; BOOL fFoundOne = FALSE; PLIST_ENTRY pEntry; PLIST_ENTRY pEntryNext;
DBG_ASSERT( pfnConnEnum != NULL);
//
// Loop through the list of connections and call the callback
// for each connection that matches condition
//
for ( pEntry = m_ActiveConnectionsList.Flink, pEntryNext = &m_ActiveConnectionsList; pEntry != &m_ActiveConnectionsList; pEntry = pEntryNext ) {
PICLIENT_CONNECTION pConn = GET_USER_DATA_FROM_LIST_ENTRY( pEntry); pEntryNext = pEntry->Flink; // cache next entry since pConn may die
if ( dwConnectionId == 0 || dwConnectionId == pConn->QueryId()) {
pConn->Reference();
fReturn = ( pfnConnEnum)( pConn, pContext);
if ( !pConn->DeReference()) {
// Blowaway the connection and update the count of entries.
//
// Remove from list of connections
//
pConn->Cleanup(); RemoveEntryList( &pConn->QueryListEntry());
//
// Decrement count of current users
//
m_cCurrentConnections--;
IF_DEBUG( CLIENT) { DBGPRINTF((DBG_CONTEXT, " CurrentConnections = %u\n", m_cCurrentConnections)); } }
if (!fReturn) {
break; }
fFoundOne = TRUE; } } // for
//
// If we didn't find any, assume that there was no match.
//
if ( !fFoundOne ) {
SetLastError( ERROR_NO_MORE_ITEMS ); fReturn = FALSE; }
return ( fReturn);} // FTP_SERVER_INSTANCE::EnumerateConnection()
DWORDFTP_SERVER_INSTANCE::GetConfigInformation(OUT LPFTP_CONFIG_INFO pConfig)/*++
This function copies the ftp server configuration into the given structure (pointed to).
Arguments: pConfig -- pointer to FTP_CONFIG_INFO which on success will contain the ftp server configuration
Returns: Win32 error code. NO_ERROR on success.--*/{ DWORD dwError = NO_ERROR;
memset( pConfig, 0, sizeof(*pConfig) );
pConfig->FieldControl = FC_FTP_ALL;
//
// mask out the properties that are not supported in FTP 5.1
//
pConfig->FieldControl &= ~FC_FTP_LOG_IN_UTF_8 & ~FC_FTP_USER_ISOLATION;
LockConfig();
pConfig->fAllowAnonymous = m_fAllowAnonymous; pConfig->fAllowGuestAccess = m_fAllowGuestAccess; pConfig->fAnnotateDirectories = m_fAnnotateDirectories; pConfig->fAnonymousOnly = m_fAnonymousOnly; pConfig->dwListenBacklog = m_ListenBacklog; pConfig->fLowercaseFiles = m_fLowercaseFiles; pConfig->fMsdosDirOutput = m_fMsdosDirOutput;
if( !ConvertStringToRpc( &pConfig->lpszExitMessage, QueryExitMsg() ) || !ConvertStringToRpc( &pConfig->lpszGreetingMessage, m_pszGreetingMessageWithLineFeed ) || !ConvertStringToRpc( &pConfig->lpszBannerMessage, m_pszBannerMessageWithLineFeed ) || !ConvertStringToRpc( &pConfig->lpszMaxClientsMessage, QueryMaxClientsMsg() ) ) { dwError = GetLastError(); }
UnLockConfig();
if ( dwError == NO_ERROR) {
pConfig->lpszHomeDirectory = NULL; // use query virtual roots.
}
if ( dwError != NO_ERROR) {
FreeRpcString( pConfig->lpszExitMessage ); FreeRpcString( pConfig->lpszGreetingMessage ); FreeRpcString( pConfig->lpszBannerMessage ); FreeRpcString( pConfig->lpszHomeDirectory ); FreeRpcString( pConfig->lpszMaxClientsMessage ); }
return (dwError);
} // FTP_SERVER_INSTANCE::GetConfigurationInformation()
// Private Functions ...
BOOLFTP_SERVER_INSTANCE::FreeAllocCachedClientConn( VOID)/*++
This function frees all the alloc cached client connections It walks through the list of alloc cached entries and frees them.
This function should be called when Server module is terminated and when no other thread can interfere in processing a shared object.
Arguments: NONE
Returns: TRUE on success and FALSE on failure.
--*/{ register PLIST_ENTRY pEntry; register PLIST_ENTRY pEntryNext; register PICLIENT_CONNECTION pConn;
for( pEntry = m_FreeConnectionsList.Flink; pEntry != &m_FreeConnectionsList; ) {
PICLIENT_CONNECTION pConn = GET_USER_DATA_FROM_LIST_ENTRY( pEntry); pEntryNext = pEntry->Flink; // cache next entry since pConn may die
DBG_ASSERT( pConn->QueryReference() == 0);
RemoveEntryList( pEntry ); // Remove this context from list
// delete the object itself
delete pConn;
pEntry = pEntryNext;
} // for
return (TRUE);
} // USER_DATA::FreeAllocCachedClientConn()
PICLIENT_CONNECTIONFTP_SERVER_INSTANCE::AllocClientConnFromAllocCache( VOID )/*++
This function attempts to allocate a client connection object from the allocation cache, using the free list of connections available.
If none is available, then a new object is allocated using new () and returned to the caller. Eventually the object will enter free list and will be available for free use.
Arguments: None
Returns: On success a valid pointer to client connection object.
Issues: This function should be called while holding the ConnectionsLock.--*/{ PLIST_ENTRY pEntry = m_FreeConnectionsList.Flink; PICLIENT_CONNECTION pConn;
if ( pEntry != &m_FreeConnectionsList) {
pConn = GET_USER_DATA_FROM_LIST_ENTRY( pEntry); DBG_ASSERT( pConn != NULL); RemoveEntryList( pEntry); // remove entry from free list
DBG_ASSERT( pConn->QueryInstance() == NULL ); pConn->SetInstance( this );
} else {
//
// create a new object, since allocation cache is empty
//
pConn = new USER_DATA( this ); }
return (pConn);
} // FTP_SERVER_INSTANCE::AllocClientConnFromAllocCache()
VOIDFTP_SERVER_INSTANCE::FreeClientConnToAllocCache( IN PICLIENT_CONNECTION pClient )/*++
This function releases the given Client connection to the allocation cache. It adds the given object to allocation cache.
Arguments: pClient pointer to client connection object which needs to be freed.
Returns: None
Issues: This function should be called after holding the ConnectionsList critical section.
Should we limit the number of items that can be on free list and to release the remaining to global pool? NYI (depends on # CPUs)--*/{ PLIST_ENTRY pEntry = &pClient->QueryListEntry();
//
// empty out instance pointer
//
pClient->QueryInstance()->DecrementCurrentConnections(); pClient->QueryInstance()->Dereference( ); pClient->SetInstance( NULL );
InsertHeadList( &m_FreeConnectionsList, pEntry); return;
} // FTP_SERVER_INSTANCE::FreeClientConnToAllocCache()
/*******************************************************************
NAME: GetDefaultDomainName
SYNOPSIS: Fills in the given array with the name of the default domain to use for logon validation.
ENTRY: pszDomainName - Pointer to a buffer that will receive the default domain name.
cchDomainName - The size (in charactesr) of the domain name buffer.
RETURNS: APIERR - 0 if successful, !0 if not.
HISTORY: KeithMo 05-Dec-1994 Created.
********************************************************************/
APIERRGetDefaultDomainName( STR * pstrDomainName ){
OBJECT_ATTRIBUTES ObjectAttributes; NTSTATUS NtStatus; INT Result; APIERR err = 0; LSA_HANDLE LsaPolicyHandle = NULL; PPOLICY_ACCOUNT_DOMAIN_INFO DomainInfo = NULL;
//
// Open a handle to the local machine's LSA policy object.
//
InitializeObjectAttributes( &ObjectAttributes, // object attributes
NULL, // name
0L, // attributes
NULL, // root directory
NULL ); // security descriptor
NtStatus = LsaOpenPolicy( NULL, // system name
&ObjectAttributes, // object attributes
POLICY_EXECUTE, // access mask
&LsaPolicyHandle ); // policy handle
if( !NT_SUCCESS( NtStatus ) ) { DBGPRINTF(( DBG_CONTEXT, "cannot open lsa policy, error %08lX\n", NtStatus ));
err = LsaNtStatusToWinError( NtStatus ); goto Cleanup; }
//
// Query the domain information from the policy object.
//
NtStatus = LsaQueryInformationPolicy( LsaPolicyHandle, PolicyAccountDomainInformation, (PVOID *)&DomainInfo );
if( !NT_SUCCESS( NtStatus ) ) { DBGPRINTF(( DBG_CONTEXT, "cannot query lsa policy info, error %08lX\n", NtStatus ));
err = LsaNtStatusToWinError( NtStatus ); goto Cleanup; }
//
// Compute the required length of the ANSI name.
//
Result = WideCharToMultiByte( CP_ACP, 0, // dwFlags
(LPCWSTR)DomainInfo->DomainName.Buffer, DomainInfo->DomainName.Length /sizeof(WCHAR), NULL, // lpMultiByteStr
0, // cchMultiByte
NULL, // lpDefaultChar
NULL // lpUsedDefaultChar
);
if( Result <= 0 ) { err = GetLastError(); goto Cleanup; }
//
// Resize the output string as appropriate, including room for the
// terminating '\0'.
//
if( !pstrDomainName->Resize( (UINT)Result + 1 ) ) { err = GetLastError(); goto Cleanup; }
//
// Convert the name from UNICODE to ANSI.
//
Result = WideCharToMultiByte( CP_ACP, 0, // flags
(LPCWSTR)DomainInfo->DomainName.Buffer, DomainInfo->DomainName.Length /sizeof(WCHAR), pstrDomainName->QueryStr(), pstrDomainName->QuerySize() - 1, // for '\0'
NULL, NULL );
if( Result <= 0 ) { err = GetLastError();
DBGPRINTF(( DBG_CONTEXT, "cannot convert domain name to ANSI, error %d\n", err ));
goto Cleanup; }
//
// Ensure the ANSI string is zero terminated.
//
DBG_ASSERT( (DWORD)Result < pstrDomainName->QuerySize() );
pstrDomainName->QueryStr()[Result] = '\0';
//
// Success!
//
DBG_ASSERT( err == 0 );
IF_DEBUG( CONFIG ) { DBGPRINTF(( DBG_CONTEXT, "GetDefaultDomainName: default domain = %s\n", pstrDomainName->QueryStr() )); }
Cleanup:
if( DomainInfo != NULL ) { LsaFreeMemory( (PVOID)DomainInfo ); }
if( LsaPolicyHandle != NULL ) { LsaClose( LsaPolicyHandle ); }
return err;
} // GetDefaultDomainName()
BOOLGenMessageWithLineFeed(IN LPTSTR pszzMessage, IN LPTSTR * ppszMessageWithLineFeed){ DWORD cchLen = 0; DWORD cchLen2; DWORD nLines = 0; LPCTSTR pszNext = pszzMessage; LPTSTR pszDst = NULL;
DBG_ASSERT( ppszMessageWithLineFeed != NULL);
//
// 1. Find the length of the the complete message
//
for ( cchLen = _tcslen( pszzMessage), nLines = 0; *(pszzMessage + cchLen + 1) != TEXT('\0'); cchLen += 1+_tcslen( pszzMessage + cchLen + 1), nLines++ ) ;
//
// 2. Allocate sufficient space to hold the data
//
if ( *ppszMessageWithLineFeed != NULL) {
TCP_FREE( *ppszMessageWithLineFeed); }
*ppszMessageWithLineFeed = (TCHAR *) TCP_ALLOC((cchLen + nLines + 3) * sizeof(TCHAR));
if ( *ppszMessageWithLineFeed == NULL) {
SetLastError( ERROR_NOT_ENOUGH_MEMORY); return (FALSE); }
//
// 3.
// Copy the message from double null terminated string to the
// new string, taking care to replace the nulls with \n for linefeed
//
pszDst = * ppszMessageWithLineFeed; _tcscpy( pszDst, pszzMessage); cchLen2 = _tcslen( pszzMessage) + 1; *(pszDst+cchLen2 - 1) = TEXT('\n'); // replacing the '\0' with '\n'
for( pszNext = pszzMessage + cchLen2; *pszNext != '\0'; pszNext = pszzMessage + cchLen2 ) {
_tcscpy( pszDst + cchLen2, pszNext); cchLen2 += _tcslen(pszNext) + 1; *(pszDst + cchLen2 - 1) = TCHAR('\n'); // replacing the '\0' with '\n'
} // for
//
// Reset the last line feed.
//
*(pszDst + cchLen2 - 1) = TCHAR('\0');
// if following assertion is not true, we are writing into heap!!!
if ( cchLen + nLines + 3 <= cchLen2) {
return ( FALSE); }
DBG_ASSERT( cchLen + nLines + 3 >= cchLen2);
return ( TRUE);} // GenMessageWithLineFeed()
TCHAR *FtpdReadRegistryString(IN HKEY hkey, IN LPCTSTR pszValueName, IN LPCTSTR pchDefaultValue, IN DWORD cbDefaultValue)/*++
This function reads a string (REG_SZ/REG_MULTI_SZ/REG_EXPAND_SZ) without expanding the same. It allocates memory for reading the data from registry.
Arguments: hkey handle for the registry key. pszValueName pointer to string containing the name of value to be read. pchDefaultValue pointer to default value to be used for reading the string this may be double null terminated sequence of string for REG_MULTI_SZ strings cchDefaultValue count of characters in default value string, including double null characters.
Return: pointer to newly allocated string containing the data read from registry or the default string.
--*/{ TCHAR * pszBuffer1 = NULL; DWORD err;
if( hkey == NULL ) {
//
// Pretend the key wasn't found.
//
err = ERROR_FILE_NOT_FOUND;
} else {
DWORD cbBuffer = 0; DWORD dwType;
//
// Determine the buffer size.
//
err = RegQueryValueEx( hkey, pszValueName, NULL, &dwType, NULL, &cbBuffer );
if( ( err == NO_ERROR ) || ( err == ERROR_MORE_DATA ) ) {
if(( dwType != REG_SZ ) && ( dwType != REG_MULTI_SZ ) && ( dwType != REG_EXPAND_SZ ) ) {
//
// Type mismatch, registry data NOT a string.
// Use default.
//
err = ERROR_FILE_NOT_FOUND;
} else {
//
// Item found, allocate a buffer.
//
pszBuffer1 = (TCHAR *) TCP_ALLOC( cbBuffer+sizeof(TCHAR) );
if( pszBuffer1 == NULL ) {
err = GetLastError(); } else {
//
// Now read the value into the buffer.
//
err = RegQueryValueEx( hkey, pszValueName, NULL, NULL, (LPBYTE)pszBuffer1, &cbBuffer ); } } } }
if( err == ERROR_FILE_NOT_FOUND ) {
//
// Item not found, use default value.
//
err = NO_ERROR;
if( pchDefaultValue != NULL ) {
if ( pszBuffer1 != NULL) {
TCP_FREE( pszBuffer1); }
pszBuffer1 = (TCHAR *)TCP_ALLOC((cbDefaultValue) * sizeof(TCHAR));
if( pszBuffer1 == NULL ) {
err = GetLastError(); } else {
memcpy(pszBuffer1, pchDefaultValue, cbDefaultValue*sizeof(TCHAR) ); } } }
if( err != NO_ERROR ) {
//
// Something tragic happend; free any allocated buffers
// and return NULL to the caller, indicating failure.
//
if( pszBuffer1 != NULL ) {
TCP_FREE( pszBuffer1 ); pszBuffer1 = NULL; }
SetLastError( err); }
return pszBuffer1;
} // FtpdReadRegistryString()
BOOLFtpdReadRegString( IN HKEY hkey, OUT TCHAR * * ppchstr, IN LPCTSTR pchValue, IN LPCTSTR pchDefault, IN DWORD cchDefault )/*++
Description
Gets the specified string from the registry. If *ppchstr is not NULL, then the value is freed. If the registry call fails, *ppchstr is restored to its previous value.
Arguments:
hkey - Handle to open key ppchstr - Receives pointer of allocated memory of the new value of the string pchValue - Which registry value to retrieve pchDefault - Default string if value isn't found cchDefault - count of characters in default value
Note:
--*/{ CHAR * pch = *ppchstr;
*ppchstr = FtpdReadRegistryString(hkey, pchValue, pchDefault, cchDefault);
if ( !*ppchstr ) { *ppchstr = pch; return FALSE; }
if ( pch ) {
//
// use TCP_FREE since FtpdReadRegistryString() uses TCP_ALLOC
// to allocate the chunk of memory
//
TCP_FREE( pch ); }
return TRUE;
} // FtpdReadRegString()
BOOLFTP_IIS_SERVICE::AddInstanceInfo( IN DWORD dwInstance, IN BOOL fMigrateRoots ){ PFTP_SERVER_INSTANCE pInstance; CHAR szHost[MAXGETHOSTSTRUCT];
IF_DEBUG(SERVICE_CTRL) { DBGPRINTF(( DBG_CONTEXT, "AddInstanceInfo: instance %d reg %s\n", dwInstance, QueryRegParamKey() )); }
// Guard against startup race where another thread might be adding
// instances before the MSFTPSVC thread is finished with initializing
// the g_pInetSvc pointer.
if ( g_pInetSvc == NULL ) { SetLastError( ERROR_NOT_SUPPORTED ); return FALSE; }
//
// Get the current host name.
//
if( gethostname( szHost, sizeof(szHost) ) < 0 ) {
return FALSE;
}
//
// Create the new instance
//
pInstance = new FTP_SERVER_INSTANCE( this, dwInstance, IPPORT_FTP, QueryRegParamKey(), FTPD_ANONYMOUS_SECRET_W, FTPD_ROOT_SECRET_W, fMigrateRoots );
if (pInstance == NULL) { SetLastError( E_OUTOFMEMORY ); return FALSE; }
if( !AddInstanceInfoHelper( pInstance ) ) { return FALSE; }
if( pInstance->SetLocalHostName( szHost ) != NO_ERROR ) { RemoveServerInstance( pInstance ); return FALSE; }
return TRUE;
} // FTP_IIS_SERVICE::AddInstanceInfo
DWORDFTP_IIS_SERVICE::DisconnectUsersByInstance( IN IIS_SERVER_INSTANCE * pInstance )/*++
Virtual callback invoked by IIS_SERVER_INSTANCE::StopInstance() to disconnect all users associated with the given instance.
Arguments:
pInstance - All users associated with this instance will be forcibly disconnected.
--*/{
((FTP_SERVER_INSTANCE *)pInstance)->DisconnectAllConnections(); return NO_ERROR;
} // FTP_IIS_SERVICE::DisconnectUsersByInstance
VOIDFTP_SERVER_INSTANCE::MDChangeNotify( MD_CHANGE_OBJECT * pco )/*++
Handles metabase change notifications.
Arguments:
pco - Path and ID that changed.
--*/{
FIELD_CONTROL control = 0; DWORD i; DWORD err; DWORD id; PCSTR pszURL; DWORD dwURLLength;
//
// Let the parent deal with it.
//
IIS_SERVER_INSTANCE::MDChangeNotify( pco );
//
// Now flush the metacache and relevant file handle cache entries.
//
TsFlushMetaCache(METACACHE_FTP_SERVER_ID, FALSE);
if ( !_mbsnbicmp((PUCHAR)pco->pszMDPath, (PUCHAR)QueryMDVRPath(), _mbslen( (PUCHAR)QueryMDVRPath() )) ) { pszURL = (CHAR *)pco->pszMDPath + QueryMDVRPathLen() - 1;
//
// Figure out the length of the URL. Unless this is the root,
// we want to strip the trailing slash.
if (memcmp(pszURL, "/", sizeof("/")) != 0) { dwURLLength = strlen(pszURL) - 1; } else { dwURLLength = sizeof("/") - 1; }
} else { //
// Presumably this is for a change above the root URL level, i.e. a
// change of a property at the service level. Since this affects
// everything, flush starting at the root.
//
pszURL = "/"; dwURLLength = sizeof("/") - 1; }
DBG_ASSERT(pszURL != NULL); DBG_ASSERT(*pszURL != '\0');
TsFlushURL(GetTsvcCache(), pszURL, dwURLLength, RESERVED_DEMUX_URI_INFO);
//
// Interpret the changes.
//
for( i = 0 ; i < pco->dwMDNumDataIDs ; i++ ) {
id = pco->pdwMDDataIDs[i];
switch( id ) {
case MD_EXIT_MESSAGE : control |= FC_FTP_EXIT_MESSAGE; break;
case MD_GREETING_MESSAGE : control |= FC_FTP_GREETING_MESSAGE; break;
case MD_BANNER_MESSAGE : control |= FC_FTP_BANNER_MESSAGE; break;
case MD_MAX_CLIENTS_MESSAGE : control |= FC_FTP_MAX_CLIENTS_MESSAGE; break;
case MD_MSDOS_DIR_OUTPUT : control |= FC_FTP_MSDOS_DIR_OUTPUT; break;
case MD_ALLOW_ANONYMOUS : control |= FC_FTP_ALLOW_ANONYMOUS; break;
case MD_ANONYMOUS_ONLY : control |= FC_FTP_ANONYMOUS_ONLY; break;
case MD_ALLOW_REPLACE_ON_RENAME : control |= FC_FTP_ALLOW_REPLACE_ON_RENAME; break;
case MD_SHOW_4_DIGIT_YEAR : control |= FC_FTP_SHOW_4_DIGIT_YEAR; break;
case MD_ANONYMOUS_USER_NAME : case MD_ANONYMOUS_PWD : case MD_ANONYMOUS_USE_SUBAUTH : case MD_DEFAULT_LOGON_DOMAIN : case MD_LOGON_METHOD : err = ReadAuthentInfo( FALSE, id );
if( err != NO_ERROR ) {
DBGPRINTF(( DBG_CONTEXT, "FTP_SERVER_INSTANCE::MDChangeNotify() cannot read authentication info, error %d\n", err ));
} break;
}
}
if( control != 0 ) {
err = InitFromRegistry( control );
if( err != NO_ERROR ) {
DBGPRINTF(( DBG_CONTEXT, "FTP_SERVER_INSTANCE::MDChangeNotify() cannot read config, error %lx\n", err ));
}
}
} // FTP_SERVER_INSTANCE::MDChangeNotify
DWORDFTP_SERVER_INSTANCE::ReadAuthentInfo( IN BOOL ReadAll, IN DWORD SingleItemToRead )/*++
Reads per-instance authentication info from the metabase.
Arguments:
ReadAll - If TRUE, then all authentication related items are read from the metabase. If FALSE, then only a single item is read.
SingleItemToRead - The single authentication item to read if ReadAll is FALSE. Ignored if ReadAll is TRUE.
Returns:
DWORD - 0 if successful, !0 otherwise.
--*/{
DWORD tmp; DWORD err = NO_ERROR; BOOL rebuildAcctDesc = FALSE; MB mb( (IMDCOM*)g_pInetSvc->QueryMDObject() );
//
// Lock our configuration (since we'll presumably be making changes)
// and open the metabase.
//
LockConfig();
if( !mb.Open( QueryMDPath() ) ) {
err = GetLastError();
DBGPRINTF(( DBG_CONTEXT, "ReadAuthentInfo: cannot open metabase, error %lx\n", err ));
}
//
// Read the anonymous username if necessary. Note this is a REQUIRED
// property. If it is missing from the metabase, bail.
//
if( err == NO_ERROR && ( ReadAll || SingleItemToRead == MD_ANONYMOUS_USER_NAME ) ) {
if( mb.GetStr( "", MD_ANONYMOUS_USER_NAME, IIS_MD_UT_SERVER, &m_TcpAuthentInfo.strAnonUserName ) ) {
rebuildAcctDesc = TRUE;
} else {
err = GetLastError();
DBGPRINTF(( DBG_CONTEXT, "ReadAuthentInfo: cannot read MD_ANONYMOUS_USER_NAME, error %lx\n", err ));
}
}
//
// Read the "use subauthenticator" flag if necessary. This is an
// optional property.
//
if( err == NO_ERROR && ( ReadAll || SingleItemToRead == MD_ANONYMOUS_USE_SUBAUTH ) ) {
if( !mb.GetDword( "", MD_ANONYMOUS_USE_SUBAUTH, IIS_MD_UT_SERVER, &tmp ) ) {
tmp = DEFAULT_USE_SUBAUTH;
}
m_TcpAuthentInfo.fDontUseAnonSubAuth = !tmp;
}
//
// Read the anonymous password if necessary. This is an optional
// property.
//
if( err == NO_ERROR && ( ReadAll || SingleItemToRead == MD_ANONYMOUS_PWD ) ) {
if( mb.GetStr( "", MD_ANONYMOUS_PWD, IIS_MD_UT_SERVER, &m_TcpAuthentInfo.strAnonUserPassword, METADATA_INHERIT, DEFAULT_ANONYMOUS_PWD ) ) {
rebuildAcctDesc = TRUE;
} else {
//
// Since we provided a default value to mb.GetStr(), it should
// only fail if something catastrophic occurred, such as an
// out of memory condition.
//
err = GetLastError();
DBGPRINTF(( DBG_CONTEXT, "ReadAuthentInfo: cannot read MD_ANONYMOUS_PWD, error %lx\n", err ));
}
}
//
// Read the default logon domain if necessary. This is an optional
// property.
//
if( err == NO_ERROR && ( ReadAll || SingleItemToRead == MD_DEFAULT_LOGON_DOMAIN ) ) {
if( !mb.GetStr( "", MD_DEFAULT_LOGON_DOMAIN, IIS_MD_UT_SERVER, &m_TcpAuthentInfo.strDefaultLogonDomain ) ) {
//
// Generate a default domain name.
//
err = GetDefaultDomainName( &m_TcpAuthentInfo.strDefaultLogonDomain );
if( err != NO_ERROR ) {
DBGPRINTF(( DBG_CONTEXT, "ReadAuthentInfo: cannot get default domain name, error %d\n", err ));
}
}
}
//
// Read the logon method if necessary. This is an optional property.
//
if( err == NO_ERROR && ( ReadAll || SingleItemToRead == MD_LOGON_METHOD ) ) {
if( !mb.GetDword( "", MD_LOGON_METHOD, IIS_MD_UT_SERVER, &tmp ) ) {
tmp = DEFAULT_LOGON_METHOD;
}
m_TcpAuthentInfo.dwLogonMethod = tmp;
}
//
// If anything changed that could affect the anonymous account
// descriptor, then rebuild the descriptor.
//
if( err == NO_ERROR && rebuildAcctDesc ) {
if( !BuildAnonymousAcctDesc( &m_TcpAuthentInfo ) ) {
DBGPRINTF(( DBG_CONTEXT, "ReadAuthentInfo: BuildAnonymousAcctDesc() failed\n" ));
err = ERROR_NOT_ENOUGH_MEMORY; // SWAG
}
}
UnLockConfig(); return err;
} // FTP_SERVER_INSTANCE::ReadAuthentInfo
BOOLFTP_IIS_SERVICE::GetGlobalStatistics( IN DWORD dwLevel, OUT PCHAR *pBuffer ){ APIERR err = NO_ERROR;
switch( dwLevel ) { case 0 : {
LPFTP_STATISTICS_0 pstats0;
pstats0 = (LPFTP_STATISTICS_0) MIDL_user_allocate(sizeof(FTP_STATISTICS_0));
if( pstats0 == NULL ) {
err = ERROR_NOT_ENOUGH_MEMORY; } else { ATQ_STATISTICS atqStat;
ZeroMemory( pstats0, sizeof( FTP_STATISTICS_0 ) );
g_pFTPStats->CopyToStatsBuffer( pstats0 );
*pBuffer = (PCHAR)pstats0; }
}
break;
default : err = ERROR_INVALID_LEVEL; break; }
SetLastError(err); return(err == NO_ERROR);} // FTP_IIS_SERVICE::GetGlobalStatistics
BOOLFTP_IIS_SERVICE::AggregateStatistics( IN PCHAR pDestination, IN PCHAR pSource ){ LPFTP_STATISTICS_0 pStatDest = (LPFTP_STATISTICS_0) pDestination; LPFTP_STATISTICS_0 pStatSrc = (LPFTP_STATISTICS_0) pSource;
if ((NULL == pDestination) || (NULL == pSource)) { return FALSE; }
pStatDest->TotalBytesSent.QuadPart += pStatSrc->TotalBytesSent.QuadPart; pStatDest->TotalBytesReceived.QuadPart += pStatSrc->TotalBytesReceived.QuadPart;
pStatDest->TotalFilesSent += pStatSrc->TotalFilesSent; pStatDest->TotalFilesReceived += pStatSrc->TotalFilesReceived; pStatDest->CurrentAnonymousUsers += pStatSrc->CurrentAnonymousUsers; pStatDest->CurrentNonAnonymousUsers += pStatSrc->CurrentNonAnonymousUsers; pStatDest->TotalAnonymousUsers += pStatSrc->TotalAnonymousUsers; pStatDest->MaxAnonymousUsers += pStatSrc->MaxAnonymousUsers; pStatDest->MaxNonAnonymousUsers += pStatSrc->MaxNonAnonymousUsers;
pStatDest->CurrentConnections += pStatSrc->CurrentConnections; pStatDest->MaxConnections += pStatSrc->MaxConnections; pStatDest->ConnectionAttempts += pStatSrc->ConnectionAttempts; pStatDest->LogonAttempts += pStatSrc->LogonAttempts; pStatDest->ServiceUptime = pStatSrc->ServiceUptime;
// bandwidth throttling info. Not relevant for FTP
/*
pStatDest->CurrentBlockedRequests += pStatSrc->CurrentBlockedRequests; pStatDest->TotalBlockedRequests += pStatSrc->TotalBlockedRequests; pStatDest->TotalAllowedRequests += pStatSrc->TotalAllowedRequests; pStatDest->TotalRejectedRequests += pStatSrc->TotalRejectedRequests; pStatDest->MeasuredBandwidth += pStatSrc->MeasuredBandwidth; */
return TRUE;}
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