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windows-nt-4.0/private/ole32/com/dcomrem/resolver.cxx

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//+-------------------------------------------------------------------
//
// File: resolver.cxx
//
// Contents: class implementing interface to RPC OXID/PingServer
// resolver process. Only one instance per process.
//
// Classes: CRpcResolver
//
// History: 20-Feb-95 Rickhi Created
//
//--------------------------------------------------------------------
#include <ole2int.h>
#include <resolver.hxx> // CRpcResolver
#include <service.hxx> // GetStringBindings
#include <locks.hxx> // LOCK/UNLOCK etc
#include <security.hxx> // GetCallAuthnLevel
#include <marshal.hxx> // GetOXIDFromObjRef
#include <sobjact.hxx> // CObjServer
// global instance of OXID resolver
CRpcResolver gResolver;
// static members of CRpcResolver
handle_t CRpcResolver::_hRpc = NULL; // binding handle to resolver
PHPROCESS CRpcResolver::_ph = NULL; // context handle to resolver
HANDLE CRpcResolver::_hThrd = NULL; // worker thread handle
HANDLE CRpcResolver::_hEventOXID = NULL; // event for registering threads
DWORD CRpcResolver::_dwFlags = 0; // flags
DWORD CRpcResolver::_dwSleepPeriod = 0; // worker thread sleep period
ULONG CRpcResolver::_cReservedOidsAvail = 0;
ULONGLONG CRpcResolver::_OidNextReserved = 0;
ULONG CRpcResolver::_cOidsToAdd = 0; // # OIDs to add next call
ULONG CRpcResolver::_cOidsToRemove = 0; // # OIDs to remove next call
ULONG CRpcResolver::_cPreRegOidsAvail = 0; // # Pre-Regist'd OIDs available
OID CRpcResolver::_arPreRegOids[MAX_PREREGISTERED_OIDS];
IDSCM * CRpcResolver::_pSCMSTA = NULL; // single-threaded scm proxy
IDSCM * CRpcResolver::_pSCMMTA = NULL; // multi-threaded scm proxy
LPWSTR CRpcResolver::_pwszWinstaDesktop = NULL;
DWORD CRpcResolver::_dwProcessSignature = 0;
BOOL CRpcResolver::_bDynamicSecurity = FALSE;
// List of OIDs to register/ping/revoke with the resolver used
// for lazy/batch client-side OID processing.
SOIDRegistration CRpcResolver::_ClientOIDRegList = {{{NULL, NULL},},
0, 0, NULL,
&_ClientOIDRegList,
&_ClientOIDRegList};
// MID (machine ID) of local machine
MID gLocalMid;
// Ping period in milliseconds.
DWORD giPingPeriod;
// string binding to the resolver
const WCHAR *pwszResolverBindString = L"ncalrpc:[epmapper,Security=Impersonation Dynamic False]";
// String arrays for the SCM process. These are used to tell the interface
// marshaling code the protocol and endpoint of the SCM process.
#ifdef _CHICAGO_
typedef struct tagSCMSA
{
unsigned short wNumEntries; // Number of entries in array.
unsigned short wSecurityOffset; // Offset of security info.
WCHAR awszStringArray[26];
} SCMSA;
SCMSA saSCM = {26, 25, L"mswmsg:[endpoint mapper]\0" };
#else
typedef struct tagSCMSA
{
unsigned short wNumEntries; // Number of entries in array.
unsigned short wSecurityOffset; // Offset of security info.
WCHAR awszStringArray[60];
} SCMSA;
// The last 4 characters in the string define the security bindings.
// \0xA is RPC_C_AUTHN_WINNT
// \0xFFFF is COM_C_AUTHZ_NONE
// \0 is an empty principle name
SCMSA saSCM = {57, 56, L"ncalrpc:[epmapper,Security=Impersonation Dynamic False]\0\xA\xFFFF\0"};
#endif
DWORD GetThreadWinstaDesktop( WCHAR ** ppwszWinstaDesktop );
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::Cleanup, public
//
// Synopsis: cleanup the resolver state. Called by ProcessUninitialze.
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
void CRpcResolver::Cleanup()
{
ASSERT_LOCK_HELD
// release our context handle
if (_ph != NULL)
{
RpcSmDestroyClientContext(&_ph);
_ph = NULL;
}
// release regular handle
if (_hRpc)
{
RpcBindingFree(&_hRpc);
_hRpc = NULL;
}
// Release the string bindings for the local object exporter.
if (gpsaLocalResolver)
{
MIDL_user_free(gpsaLocalResolver);
gpsaLocalResolver = NULL;
}
// empty the OIDRegList. Any SOIDRegistration records have already
// been deleted by the gClientRegisteredOIDs list cleanup code.
_ClientOIDRegList.pPrevList = &_ClientOIDRegList;
_ClientOIDRegList.pNextList = &_ClientOIDRegList;
_cOidsToAdd = 0;
_cOidsToRemove = 0;
// zero the count of pre-registered oids since all pre-registered
// Oids are for our old OXID value.
_cPreRegOidsAvail = 0;
// close the event handle (if any)
if (_hEventOXID)
{
CloseHandle(_hEventOXID);
_hEventOXID = NULL;
}
if (_pwszWinstaDesktop != NULL)
{
PrivMemFree(_pwszWinstaDesktop);
_pwszWinstaDesktop = NULL;
}
_bDynamicSecurity = FALSE;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ReleaseSCMProxy, public
//
// Synopsis: cleanup the resolver state. Called by ProcessUninitialze.
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
void CRpcResolver::ReleaseSCMProxy()
{
if (_pSCMSTA != NULL)
{
_pSCMSTA->Release();
_pSCMSTA = NULL;
}
if (_pSCMMTA != NULL)
{
_pSCMMTA->Release();
_pSCMMTA = NULL;
}
if (gpMTAObjServer != NULL)
{
delete gpMTAObjServer;
gpMTAObjServer = NULL;
}
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::RetryRPC, private
//
// Synopsis: determine if we need to retry the RPC call due to
// the resolver being too busy.
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
BOOL CRpcResolver::RetryRPC(RPC_STATUS sc)
{
if (sc != RPC_S_SERVER_TOO_BUSY)
return FALSE;
// give the resolver time to run, then try again.
Sleep(100);
// CODEWORK: this is currently an infinite loop. Should we limit it?
return TRUE;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::CheckStatus, private
//
// Synopsis: Checks the status code of an Rpc call, prints a debug
// ERROR message if failed, and maps the failed status code
// into an HRESULT.
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::CheckStatus(RPC_STATUS sc)
{
if (sc != RPC_S_OK)
{
ComDebOut((DEB_ERROR, "OXID Resolver Failure sc:%x\n", sc));
sc = HRESULT_FROM_WIN32(sc);
}
return sc;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::GetConnection, public
//
// Synopsis: connects to the resolver process
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::GetConnection()
{
ComDebOut((DEB_OXID,"CRpcResolver::GetConnection\n"));
HRESULT hr;
COleTls tls(hr);
if (FAILED(hr))
{
return hr;
}
RPC_STATUS sc = RPC_S_OK;
LOCK
if (_ph == NULL)
{
sc = RpcBindingFromStringBinding((LPWSTR)pwszResolverBindString, &_hRpc);
ComDebErr(sc != RPC_S_OK, "Resolver Binding Failed.\n");
if (sc == RPC_S_OK)
{
OID oidBase;
DWORD fConnectFlags;
do
{
// call the resolver to get a context handle
sc = Connect(_hRpc,
&_ph,
&giPingPeriod,
&gpsaLocalResolver,
&gLocalMid,
MAX_RESERVED_OIDS,
&oidBase,
&fConnectFlags,
(WCHAR **) &gLegacySecurity,
&gAuthnLevel,
&gImpLevel,
&gServerSvcListLen,
&gServerSvcList,
&gClientSvcListLen,
&gClientSvcList,
&(tls->dwApartmentID),
&gdwScmProcessID,
&_dwProcessSignature);
} while (RetryRPC(sc));
if (sc == RPC_S_OK)
{
gDisableDCOM = fConnectFlags & CONNECT_DISABLEDCOM;
if (fConnectFlags & CONNECT_MUTUALAUTH)
gCapabilities = EOAC_MUTUAL_AUTH;
else
gCapabilities = EOAC_NONE;
if (fConnectFlags & CONNECT_SECUREREF)
gCapabilities |= EOAC_SECURE_REFS;
// remember the reserved OID base.
_OidNextReserved = oidBase;
_cReservedOidsAvail = MAX_RESERVED_OIDS;
// Mark the security data as initialized.
gGotSecurityData = TRUE;
if (IsWOWProcess())
{
gDisableDCOM = TRUE;
}
// Convert the ping period from seconds to milliseconds.
giPingPeriod *= 1000;
Win4Assert(gpsaLocalResolver->wNumEntries != 0);
// compute the sleep period for the registration worker thread
// (which is 1/6th the ping period). The ping period may differ
// on debug and retail builds.
#if DBG==1
// shorter time period to enable testing
_dwSleepPeriod = 5000;
#else
_dwSleepPeriod = giPingPeriod / 6;
#endif
}
else
{
ComDebOut((DEB_OXID, "Resolver Connect Failed sc:%x\n", sc));
RpcBindingFree(&_hRpc);
_hRpc = NULL;
Win4Assert(gpsaLocalResolver == NULL);
Win4Assert(_ph == NULL);
}
}
}
if ( (sc == RPC_S_OK) && (_pwszWinstaDesktop == NULL))
sc = SetWinstaDesktop();
UNLOCK
hr = CheckStatus(sc);
ComDebErr(hr != S_OK, "GetConnection Failed.\n");
ComDebOut((DEB_OXID,"CRpcResolver::GetConnection hr:%x\n", hr));
return hr;
}
//+--------------------------------------------------------------------------
//
// Member: CRpcResolver::ServerGetReservedMOID, public
//
// Synopsis: Get an OID that does not need to be pinged.
//
// History: 06-Nov-95 Rickhi Created.
//
//----------------------------------------------------------------------------
HRESULT CRpcResolver::ServerGetReservedMOID(MOID *pmoid)
{
ComDebOut((DEB_OXID,"ServerGetReservedMOID\n"));
OID oid;
HRESULT hr = ServerGetReservedID(&oid);
MOIDFromOIDAndMID(oid, gLocalMid, pmoid);
ASSERT_LOCK_HELD
ComDebOut((DEB_OXID,"ServerGetReservedMOID hr:%x moid:%I\n", pmoid));
return hr;
}
//+--------------------------------------------------------------------------
//
// Member: CRpcResolver::ServerGetReservedID, public
//
// Synopsis: Get an ID that does not need to be pinged.
//
// History: 06-Nov-95 Rickhi Created.
//
//----------------------------------------------------------------------------
HRESULT CRpcResolver::ServerGetReservedID(OID *pid)
{
ComDebOut((DEB_OXID,"ServerGetReservedID\n"));
ASSERT_LOCK_HELD
HRESULT hr = S_OK;
if (_cReservedOidsAvail == 0)
{
// go get more reserved OIDs from the ping server
UNLOCK
ASSERT_LOCK_RELEASED
OID OidBase;
do
{
hr = ::AllocateReservedIds(
_hRpc, // Rpc binding handle
MAX_RESERVED_OIDS, // count of OIDs requested
&OidBase); // place to hold base id
} while (RetryRPC(hr));
// map Rpc status if necessary
hr = CheckStatus(hr);
ASSERT_LOCK_RELEASED
LOCK
if (SUCCEEDED(hr))
{
// copy into global state. Dont have to worry about two threads
// getting more simultaneously, since these OIDs are expendable.
_cReservedOidsAvail = MAX_RESERVED_OIDS;
_OidNextReserved = OidBase;
}
}
if (SUCCEEDED(hr))
{
*pid = _OidNextReserved;
_OidNextReserved++;
_cReservedOidsAvail--;
}
ASSERT_LOCK_HELD
ComDebOut((DEB_OXID,"ServerGetReservedID hr:%x id:%08x %08x\n", *pid));
return hr;
}
//+--------------------------------------------------------------------------
//
// Member: CRpcResolver::ServerGetPreRegMOID, public
//
// Synopsis: Get an OID that has been pre-registered with the Ping
// Server.
//
// History: 06-Nov-95 Rickhi Created.
//
// Notes: careful. The oids are dispensed in reverse order [n]-->[0], so the
// unused ones are from [0]-->[cPreRegOidsAvail-1]. ServerCanRundownOID
// depends on this behavior.
//
//----------------------------------------------------------------------------
HRESULT CRpcResolver::ServerGetPreRegMOID(MOID *pmoid)
{
ComDebOut((DEB_OXID,"ServerGetPreRegMOID\n"));
ASSERT_LOCK_HELD
// Get the local OXID. This cant fail because the local
// entry was pre-created in ChannelThreadInitialize.
OXIDEntry *pOXIDEntry;
HRESULT hr = gOXIDTbl.GetLocalEntry(&pOXIDEntry);
Win4Assert(SUCCEEDED(hr));
COleTls tls;
if (!(tls->dwFlags & OLETLS_APARTMENTTHREADED))
{
// in MTA Apartment, use the global list and global count.
if (_cPreRegOidsAvail == 0)
{
hr = ServerAllocMoreOIDs(&_cPreRegOidsAvail, _arPreRegOids,
pOXIDEntry);
}
if (SUCCEEDED(hr))
{
_cPreRegOidsAvail--;
MOIDFromOIDAndMID(_arPreRegOids[_cPreRegOidsAvail],
gLocalMid, pmoid);
}
}
else
{
// In STA Apartment, the pre-registered OIDs are kept per apartment
// in a list off of tls.
if (tls->cPreRegOidsAvail == 0)
{
if (tls->pPreRegOids == NULL)
{
// first time for this thread. Allocate a list to hold
// the pre-registered oids.
tls->pPreRegOids = (OID *)PrivMemAlloc(MAX_PREREGISTERED_OIDS *
sizeof(OID));
if (tls->pPreRegOids == NULL)
{
hr = E_OUTOFMEMORY;
}
}
if (SUCCEEDED(hr))
{
hr = ServerAllocMoreOIDs(&tls->cPreRegOidsAvail,
tls->pPreRegOids, pOXIDEntry);
}
}
if (SUCCEEDED(hr))
{
tls->cPreRegOidsAvail--;
MOIDFromOIDAndMID(tls->pPreRegOids[tls->cPreRegOidsAvail],
gLocalMid, pmoid);
}
}
ASSERT_LOCK_HELD
ComDebOut((DEB_OXID,"ServerGetPreRegMOID hr:%x moid:%I\n", hr, pmoid));
return hr;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ServerCanRundownOID, public
//
// Synopsis: Determine if OK to rundown the specified OID.
//
// History: 06-Nov-95 Rickhi Created.
//
//--------------------------------------------------------------------
BOOL CRpcResolver::ServerCanRundownOID(REFOID roid)
{
ComDebOut((DEB_OXID,"ServerCanRundownOID poid:%x\n", &roid));
ASSERT_LOCK_HELD
// look in the list of unused pre-registered OIDs to see if the
// OID is in there. If so, we dont want to run it down yet so
// return FALSE, otherwise return TRUE
BOOL fRundown = TRUE; // assume not found
ULONG cPreRegOidsAvail = _cPreRegOidsAvail;
OID *pPreRegOids = &_arPreRegOids[0];
COleTls tls;
if (tls->dwFlags & OLETLS_APARTMENTTHREADED)
{
cPreRegOidsAvail = tls->cPreRegOidsAvail;
pPreRegOids = tls->pPreRegOids;
}
// carefull. The oids are dispensed in reverse order (ie [n]-->[0])
// so when checking for unused ones check in forward order
// [0]-->[cPreRegOidsAvail-1]
for (ULONG i=0; i<cPreRegOidsAvail; i++, pPreRegOids++)
{
if (roid == *pPreRegOids)
{
// found the oid in the list of unused ones. Dont run it down.
fRundown = FALSE;
break;
}
}
ASSERT_LOCK_HELD
ComDebOut((DEB_OXID,"ServerCanRundownOID fRundown:%x\n", fRundown));
return fRundown;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::WaitForOXIDEntry, private
//
// Synopsis: waits until an OXIDEntry is not busy
//
// History: 06-Nov-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::WaitForOXIDEntry(OXIDEntry *pOXIDEntry)
{
ASSERT_LOCK_HELD
if (pOXIDEntry->dwFlags & OXIDF_REGISTERINGOIDS)
{
// some other thread is busy registering OIDs for this OXID
// so lets wait for it to finish. This should only happen in
// the MTA apartment.
Win4Assert(IsMTAThread());
if (_hEventOXID == NULL)
{
_hEventOXID = CreateEvent(NULL, FALSE, FALSE, NULL);
if (_hEventOXID == NULL)
{
return HRESULT_FROM_WIN32(GetLastError());
}
}
// count one more waiter
pOXIDEntry->cWaiters++;
do
{
// release the lock before we block so the other thread can wake
// us up when it returns.
UNLOCK
ASSERT_LOCK_RELEASED
ComDebOut((DEB_WARN,"WaitForOXIDEntry wait on hEvent:%x\n", _hEventOXID));
DWORD rc = WaitForSingleObject(_hEventOXID, INFINITE);
Win4Assert(rc == WAIT_OBJECT_0);
ASSERT_LOCK_RELEASED
LOCK
} while (pOXIDEntry->dwFlags & OXIDF_REGISTERINGOIDS);
// one less waiter
pOXIDEntry->cWaiters--;
}
// mark the entry as busy by us
pOXIDEntry->dwFlags |= OXIDF_REGISTERINGOIDS;
ASSERT_LOCK_HELD
return S_OK;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::CheckForWaiters, private
//
// Synopsis: wakes up any threads waiting for this OXIDEntry
//
// History: 06-Nov-95 Rickhi Created.
//
//--------------------------------------------------------------------
void CRpcResolver::CheckForWaiters(OXIDEntry *pOXIDEntry)
{
ASSERT_LOCK_HELD
if (pOXIDEntry->cWaiters > 0)
{
// some other thread is busy waiting for the current thread to
// finish registering so signal him that we are done.
Win4Assert(_hEventOXID != NULL);
ComDebOut((DEB_TRACE,"CheckForWaiters signalling hEvent:%x\n", _hEventOXID));
SetEvent(_hEventOXID);
}
// mark the entry as no longer busy by us
pOXIDEntry->dwFlags &= ~OXIDF_REGISTERINGOIDS;
ASSERT_LOCK_HELD
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ServerAllocMoreOIDs, private
//
// Synopsis: register Object ID with the local ping server
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ServerAllocMoreOIDs(ULONG *pcPreRegOidsAvail,
OID *parPreRegOids,
OXIDEntry *pOXIDEntry)
{
ComDebOut((DEB_OXID,"ServerAllocMoreOIDs\n"));
ASSERT_LOCK_HELD
Win4Assert(_ph != NULL);
// wait until no other threads are calling ServerAllocOIDs
HRESULT hr = WaitForOXIDEntry(pOXIDEntry);
if (SUCCEEDED(hr))
{
if (*pcPreRegOidsAvail == 0)
{
// need to really go get more
hr = ServerAllocOIDs(pOXIDEntry,
pcPreRegOidsAvail,
parPreRegOids);
}
// wakeup any waiters
CheckForWaiters(pOXIDEntry);
}
ComDebOut((DEB_OXID, "ServerAllocMoreOIDs hr:%x\n", hr));
ComDebErr(hr != S_OK, "ServerAllocMoreOIDs Failed.\n");
return hr;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ServerAllocOIDs, private
//
// Synopsis: allocate Object IDs from the local ping server
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ServerAllocOIDs(OXIDEntry *pOXIDEntry,
ULONG *pcPreRegOidsAvail,
OID *parPreRegOids)
{
HRESULT hr;
// make up a list of pre-registered OIDs on our stack so multiple
// threads executing here simultaneously are not a problem.
ULONG cOidsToAllocate = MAX_PREREGISTERED_OIDS;
OID arNewOidList[MAX_PREREGISTERED_OIDS];
if (!(pOXIDEntry->dwFlags & OXIDF_REGISTERED))
{
// have not yet registered the OXID, so go do that at the same time
// we allocate OIDs.
hr = ServerRegisterOXID(pOXIDEntry, &cOidsToAllocate, arNewOidList);
}
else
{
// just need to allocate more OIDs.
OXID oxid;
OXIDFromMOXID(pOXIDEntry->moxid, &oxid);
UNLOCK
ASSERT_LOCK_RELEASED
do
{
hr = ::ServerAllocateOIDs(
_hRpc, // Rpc binding handle
_ph, // context handle
&oxid, // OXID of server
cOidsToAllocate, // count of OIDs requested
arNewOidList, // array of reserved oids
&cOidsToAllocate);// count actually allocated
} while (RetryRPC(hr));
// map Rpc status if necessary
hr = CheckStatus(hr);
ASSERT_LOCK_RELEASED
LOCK
}
if (SUCCEEDED(hr))
{
// copy the newly created OIDs into the list in whatever space
// is still available, since some other thread could have come
// along and pre-registered OIDs simultaneously (in MTA apartment
// only). The OIDs that are not copied will be lost and
// eventually the resolver will run them down. This should be
// relatively rare.
LONG cToCopy = min(cOidsToAllocate,
MAX_PREREGISTERED_OIDS - *pcPreRegOidsAvail);
memcpy(parPreRegOids + *pcPreRegOidsAvail,
arNewOidList,
sizeof(OID) * cToCopy);
*pcPreRegOidsAvail += cToCopy;
}
return hr;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ServerRegisterOXID, public
//
// Synopsis: allocate an OXID and Object IDs with the local ping server
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ServerRegisterOXID(OXIDEntry *pOXIDEntry,
ULONG *pcOidsToAllocate,
OID arNewOidList[])
{
ComDebOut((DEB_OXID, "ServerRegisterOXID TID:%x\n", GetCurrentThreadId()));
ASSERT_LOCK_HELD
// OXID has not yet been registered with the resolver, do that
// now along with pre-registering a bunch of OIDs.
// make sure we have the local binding and security strings
HRESULT hr = StartListen();
ComDebErr(hr != S_OK, "StartListen Failed.\n");
if (hr == S_OK)
{
OXID_INFO oxidInfo;
oxidInfo.dwTid = pOXIDEntry->dwTid;
oxidInfo.dwPid = pOXIDEntry->dwPid;
oxidInfo.ipidRemUnknown = pOXIDEntry->ipidRundown;
oxidInfo.dwAuthnHint = gAuthnLevel;
oxidInfo.psa = NULL;
DUALSTRINGARRAY *psaSB = gpsaCurrentProcess; // string bindings
DUALSTRINGARRAY *psaSC = gpsaSecurity; // security bindings
if (_dwFlags & ORF_STRINGSREGISTERED)
{
// already registered these once, dont need to do it again.
psaSB = NULL;
psaSC = NULL;
}
OXID oxid;
ComDebOut((DEB_OXID,"ServerRegisterOXID oxidInfo:%x psaSB:%x psaSC:%x\n",
&oxidInfo, psaSB, psaSC));
UNLOCK
ASSERT_LOCK_RELEASED
do
{
hr = ::ServerAllocateOXIDAndOIDs(
_hRpc, // Rpc binding handle
_ph, // context handle
&oxid, // OXID of server
IsSTAThread(), // fApartment Threaded
*pcOidsToAllocate, // count of OIDs requested
arNewOidList, // array of reserved oids
pcOidsToAllocate, // count actually allocated
&oxidInfo, // OXID_INFO to register
psaSB, // string bindings for process
psaSC); // security bindings for process
} while (RetryRPC(hr));
// map Rpc status if necessary
hr = CheckStatus(hr);
ASSERT_LOCK_RELEASED
LOCK
if (hr == S_OK)
{
// mark the OXID as registered with the resolver, and replace
// the (temporarily zero) oxid with the real one the resolver
// returned to us.
pOXIDEntry->dwFlags |= OXIDF_REGISTERED;
MOXIDFromOXIDAndMID(oxid, gLocalMid, &pOXIDEntry->moxid);
}
}
ComDebOut((DEB_OXID, "ServerRegisterOXID hr:%x\n", hr));
ASSERT_LOCK_HELD
return hr;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ServerFreeOXID, public
//
// Synopsis: frees an OXID and associated OIDs that were pre-registered
// with the local ping server
//
// History: 20-Jan-96 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ServerFreeOXID(OXIDEntry *pOXIDEntry)
{
ComDebOut((DEB_OXID, "ServerFreeOXID TID:%x\n", GetCurrentThreadId()));
ASSERT_LOCK_HELD
if (!(pOXIDEntry->dwFlags & OXIDF_REGISTERED))
{
// OXID was never registered, just return
return S_OK;
}
// Free any pre-registered OIDs since these are registered for the
// current OXID. We get a new OXID if the thread is re-initialized.
// Set the ptr and count of Oids to de-register.
ULONG cOids;
OID *pOids;
COleTls tls;
if (!(tls->dwFlags & OLETLS_APARTMENTTHREADED))
{
pOids = _arPreRegOids;
cOids = _cPreRegOidsAvail;
_cPreRegOidsAvail = 0;
}
else
{
cOids = tls->cPreRegOidsAvail;
tls->cPreRegOidsAvail = 0;
pOids = tls->pPreRegOids;
tls->pPreRegOids = NULL;
}
// extract the OXID and mark the OXIDEntry as no longer registered
OXID oxid;
OXIDFromMOXID(pOXIDEntry->moxid, &oxid);
pOXIDEntry->dwFlags &= ~OXIDF_REGISTERED;
UNLOCK
ASSERT_LOCK_RELEASED
// call the resolver.
HRESULT hr;
do
{
Win4Assert(_ph != NULL);
hr = ::ServerFreeOXIDAndOIDs(
_hRpc, // Rpc binding handle
_ph, // context handle
oxid, // OXID of server
cOids, // count of OIDs to de-register
pOids); // ptr to OIDs to de-register
} while (RetryRPC(hr));
ASSERT_LOCK_RELEASED
LOCK
// map Rpc status if necessary
hr = CheckStatus(hr);
if (tls->dwFlags & OLETLS_APARTMENTTHREADED)
{
// delete the space allocated for the pre-registered OIDs
PrivMemFree(pOids);
}
ComDebOut((DEB_OXID, "ServerFreeOXID hr:%x\n", hr));
ASSERT_LOCK_HELD
return hr;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ClientResolveOXID, public
//
// Synopsis: Resolve client-side OXID and returns the OXIDEntry, AddRef'd.
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ClientResolveOXID(REFOXID roxid,
DUALSTRINGARRAY *psaResolver,
OXIDEntry **ppOXIDEntry)
{
ComDebOut((DEB_OXID,"ClientResolveOXID oxid:%08x %08x psa:%x\n",
roxid, psaResolver));
ASSERT_LOCK_HELD
RPC_STATUS sc = RPC_S_OK;
*ppOXIDEntry = NULL;
// Look for a MID entry for the resolver. if we cant find it
// then we know we dont have an OXIDEntry for the oxid.
DWORD dwHash;
MIDEntry *pMIDEntry = gMIDTbl.LookupMID(psaResolver, &dwHash);
if (pMIDEntry)
{
// found the MID, now look for the OXID
*ppOXIDEntry = gOXIDTbl.LookupOXID(roxid, pMIDEntry->mid);
}
if (*ppOXIDEntry == NULL)
{
// didn't find the OXIDEntry in the table so we need to resolve it.
UNLOCK
ASSERT_LOCK_RELEASED
MID mid;
OXID_INFO oxidInfo;
oxidInfo.psa = NULL;
do
{
Win4Assert(_ph != NULL);
sc = ::ClientResolveOXID(
_hRpc, // Rpc binding handle
_ph, // context handle
(OXID *)&roxid, // OXID of server
psaResolver, // resolver binging strings
IsSTAThread(), // fApartment threaded
// GetCallAuthnLevel(), CODEWORK: someday
&oxidInfo, // resolver info returned
&mid); // mid for the machine
} while (RetryRPC(sc));
ASSERT_LOCK_RELEASED
LOCK
// map Rpc status if necessary
sc = CheckStatus(sc);
if (SUCCEEDED(sc))
{
// create an OXIDEntry.
sc = FindOrCreateOXIDEntry(roxid, oxidInfo, FOCOXID_REF,
psaResolver,
mid, pMIDEntry, ppOXIDEntry);
// free the returned string bindings
MIDL_user_free(oxidInfo.psa);
}
}
if (pMIDEntry)
{
DecMIDRefCnt(pMIDEntry);
}
ASSERT_LOCK_HELD
ComDebOut((DEB_OXID,"ClientResolveOXID hr:%x pOXIDEntry:%x\n",
sc, *ppOXIDEntry));
return sc;
}
//+-------------------------------------------------------------------
//
// Function: FillLocalOXIDInfo
//
// Synopsis: Fills in a OXID_INFO structure for the current apartment.
// Used by the Drag & Drop code to register with the resolver.
//
// History: 20-Feb-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT FillLocalOXIDInfo(OBJREF &objref, OXID_INFO &oxidInfo)
{
// extract the OXIDEntry from the objref
OXIDEntry *pOXIDEntry = GetOXIDFromObjRef(objref);
Win4Assert(pOXIDEntry);
// fill in the fields of the OXID_INFO structure.
oxidInfo.dwTid = pOXIDEntry->dwTid;
oxidInfo.dwPid = pOXIDEntry->dwPid;
oxidInfo.ipidRemUnknown = pOXIDEntry->ipidRundown;
oxidInfo.dwAuthnHint = RPC_C_AUTHN_LEVEL_NONE;
HRESULT hr = GetStringBindings(&oxidInfo.psa);
ComDebErr(hr != S_OK, "GetStringBindings Failed.\n");
return (hr);
}
//+-------------------------------------------------------------------
//
// Function: AddToList / RemoveFromList
//
// Synopsis: adds or removes an SOIDRegistration entry to/from
// a doubly linked list.
//
// History: 30-Oct-95 Rickhi Created.
//
//--------------------------------------------------------------------
void AddToList(SOIDRegistration *pOIDReg, SOIDRegistration* pOIDListHead)
{
pOIDReg->pPrevList = pOIDListHead;
pOIDListHead->pNextList->pPrevList = pOIDReg;
pOIDReg->pNextList = pOIDListHead->pNextList;
pOIDListHead->pNextList = pOIDReg;
}
void RemoveFromList(SOIDRegistration *pOIDReg)
{
pOIDReg->pPrevList->pNextList = pOIDReg->pNextList;
pOIDReg->pNextList->pPrevList = pOIDReg->pPrevList;
pOIDReg->pPrevList = pOIDReg;
pOIDReg->pNextList = pOIDReg;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ClientRegisterOIDWithPingServer
//
// Synopsis: registers an OID with the Ping Server if it has
// not already been registered.
//
// History: 30-Oct-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ClientRegisterOIDWithPingServer(REFOID roid,
OXIDEntry *pOXIDEntry)
{
ComDebOut((DEB_OXID, "ClientRegisterOIDWithPingServer poid:%x\n", &roid));
ASSERT_LOCK_HELD
AssertValid();
HRESULT hr = S_OK;
// make a MOID from the OID
MOID moid;
MOIDFromOIDAndMID(roid, pOXIDEntry->pMIDEntry->mid, &moid);
// see if this OID already has a client-side registration
// record created by another apartment in this process.
DWORD iHash = gClientRegisteredOIDs.Hash(moid);
SOIDRegistration *pOIDReg = (SOIDRegistration *)
gClientRegisteredOIDs.Lookup(iHash, moid);
if (pOIDReg == NULL)
{
// not yet registered with resolver, create a new entry and
// add it to the hash table and to the List of items to register
// with the Resolver.
// make sure we have a worker thread ready to do the register
// at some point in the future.
hr = EnsureWorkerThread();
if (SUCCEEDED(hr))
{
hr = E_OUTOFMEMORY;
pOIDReg = new SOIDRegistration;
if (pOIDReg)
{
pOIDReg->cRefs = 1;
pOIDReg->pPrevList = pOIDReg;
pOIDReg->pNextList = pOIDReg;
pOIDReg->pOXIDEntry = pOXIDEntry;
gClientRegisteredOIDs.Add(iHash, moid, (SUUIDHashNode *)pOIDReg);
pOIDReg->flags = ROIDF_REGISTER;
AddToList(pOIDReg, &_ClientOIDRegList);
_cOidsToAdd++;
hr = S_OK;
}
}
}
else
{
// already have a record for this OID, inc the refcnt
pOIDReg->cRefs++;
if (pOIDReg->cRefs == 1)
{
// re-using an entry that had a count of zero, so it must have
// been going to be deregistered or pinged.
Win4Assert((pOIDReg->flags == ROIDF_PING) ||
(pOIDReg->flags == ROIDF_DEREGISTER));
_cOidsToRemove--;
if (pOIDReg->flags & ROIDF_PING)
{
// was only going to be pinged, now must be added.
pOIDReg->flags |= ROIDF_REGISTER;
}
else
{
// was going to be unregistered, already registered so does
// not need to be on the registration list anymmore
Win4Assert(pOIDReg->flags & ROIDF_DEREGISTER);
pOIDReg->flags = 0;
RemoveFromList(pOIDReg);
}
}
}
AssertValid();
ASSERT_LOCK_HELD
ComDebOut((DEB_OXID,"ClientRegisterOIDWithPingServer pOIDReg:%x hr:%x\n",
pOIDReg, hr));
return hr;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ClientDeRegisterOIDWithPingServer
//
// Synopsis: de-registers an OID that has previously been registered
// with the Ping Server
//
// History: 30-Oct-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ClientDeRegisterOIDFromPingServer(REFMOID rmoid,
BOOL fMarshaled)
{
ComDebOut((DEB_OXID,"ClientDeRegisterOIDWithPingServer rmoid:%I\n", &rmoid));
ASSERT_LOCK_HELD
AssertValid();
// find the OID in the hash table. it better still be there!
DWORD iHash = gClientRegisteredOIDs.Hash(rmoid);
SOIDRegistration *pOIDReg = (SOIDRegistration *)
gClientRegisteredOIDs.Lookup(iHash, rmoid);
Win4Assert(pOIDReg != NULL);
Win4Assert((pOIDReg->flags == ROIDF_REGISTER) ||
(pOIDReg->flags == (ROIDF_REGISTER | ROIDF_PING)) ||
(pOIDReg->flags == 0));
if (-- pOIDReg->cRefs == 0)
{
// this was the last registration of the OID in this process.
if (pOIDReg->flags & ROIDF_REGISTER)
{
// still on the Register list, have not yet told the Ping Server
// about this OID so dont have to do anything unless it was
// client-side marshaled.
if (fMarshaled || pOIDReg->flags & ROIDF_PING)
{
// object was marshaled by the client. Still need to tell
// the Ping Server to ping the OID then forget about it.
pOIDReg->flags = ROIDF_PING;
_cOidsToRemove++;
// make sure we have a worker thread ready to do the deregister
// at some point in the future. Not much we can do about an
// error here. If transient, then a thread will most likely
// be created later.
EnsureWorkerThread();
}
else
{
// dont need this record any longer. remove from chain
// and delete the record.
RemoveFromList(pOIDReg);
_cOidsToAdd--;
gClientRegisteredOIDs.Remove((SHashChain *)pOIDReg);
delete pOIDReg;
}
}
else
{
// must already be registered with the resolver. now need to
// deregister it so put it on the Registration list for delete.
pOIDReg->flags = ROIDF_DEREGISTER;
AddToList(pOIDReg, &_ClientOIDRegList);
_cOidsToRemove++;
// make sure we have a worker thread ready to do the deregister
// at some point in the future. Not much we can do about an
// error here. If transient, then a thread will most likely
// be created later.
EnsureWorkerThread();
}
}
AssertValid();
ASSERT_LOCK_HELD
ComDebOut((DEB_OXID,"ClientDeRegisterOIDWithPingServer pOIDReg:%x hr:%x\n",
pOIDReg, S_OK));
return S_OK;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::ClientBulkUpdateOIDWithPingServer
//
// Synopsis: registers/deregisters/pings any OIDs waiting to be
// sent to the ping server.
//
// History: 30-Oct-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::ClientBulkUpdateOIDWithPingServer(void)
{
ComDebOut((DEB_OXID, "ClientBulkUpdateOIDWithPingServer\n"));
ASSERT_LOCK_HELD
AssertValid();
Win4Assert(_cOidsToAdd + _cOidsToRemove != 0);
// Copy the counters so we can reset them before we make the call.
// Allocate space for the Add, Status, and Remove lists to send to the
// ping server, and remember the start address so we can free the
// memory later. Compute the address of the other lists within the
// one allocated memory block.
ULONG cOidsToAdd = _cOidsToAdd;
ULONG cOidsToRemove = _cOidsToRemove;
ULONG cOxidsToRemove = gOXIDTbl.NumOxidsToRemove();
ULONG cBytesToAlloc = (cOidsToAdd * (sizeof(OXID_OID_PAIR)+sizeof(ULONG)))
+ (cOidsToRemove * sizeof(OID_MID_PAIR))
+ (cOxidsToRemove * sizeof(OXID_REF));
OXID_OID_PAIR *pOidsToAdd = (OXID_OID_PAIR *)PrivMemAlloc(cBytesToAlloc);
if (pOidsToAdd == NULL)
{
// cant allocate memory. Leave the registration lists alone for
// now, this may be a transient problem and we can handle the
// registration later (unless of course the problem persists and
// our object is run down!).
UNLOCK
ASSERT_LOCK_RELEASED
ComDebOut((DEB_ERROR, "ClientBulkUpdate OOM\n"));
return E_OUTOFMEMORY;
}
OXID_OID_PAIR *pOidsToAddStart = pOidsToAdd;
LONG *pStatusOfAdds = (LONG *) (&pOidsToAdd[cOidsToAdd]);
OID_MID_PAIR *pOidsToRemove = (OID_MID_PAIR *)(&pStatusOfAdds[cOidsToAdd]);
OXID_REF *pOxidsToRemove = (OXID_REF *) (&pOidsToRemove[cOidsToRemove]);
// loop through each OID registration records in the list filling in
// the Add and Remove lists. Pinged OIDs are placed in both lists.
while (_ClientOIDRegList.pNextList != &_ClientOIDRegList)
{
// get the entry and remove it from the registration list
SOIDRegistration *pOIDReg = _ClientOIDRegList.pNextList;
RemoveFromList(pOIDReg);
// reset the state flags before we begin
DWORD dwFlags = pOIDReg->flags;
pOIDReg->flags = 0;
if (dwFlags & (ROIDF_REGISTER | ROIDF_PING))
{
// register the OID with the ping server
MIDFromMOXID (pOIDReg->pOXIDEntry->moxid, &pOidsToAdd->mid);
OXIDFromMOXID(pOIDReg->pOXIDEntry->moxid, &pOidsToAdd->oxid);
OIDFromMOID (pOIDReg->Node.key, &pOidsToAdd->oid);
pOidsToAdd++;
_cOidsToAdd--;
}
if (dwFlags == ROIDF_DEREGISTER || dwFlags == ROIDF_PING)
{
// deregister the OID with the ping server
// Node.key is the OID+MID so extract each part
MIDFromMOID(pOIDReg->Node.key, &pOidsToRemove->mid);
OIDFromMOID(pOIDReg->Node.key, &pOidsToRemove->oid);
pOidsToRemove++;
_cOidsToRemove--;
// dont need the entry any more since there are no more
// users of it. remove from hash table and delete it.
gClientRegisteredOIDs.Remove((SHashChain *)pOIDReg);
delete pOIDReg;
}
}
// Ask the OXID table to fill in the list of OXIDs to remove.
gOXIDTbl.GetOxidsToRemove( pOxidsToRemove, &cOxidsToRemove );
// make sure we got all the entries and that our counters work correctly.
Win4Assert(_cOidsToAdd == 0);
Win4Assert(_cOidsToRemove == 0);
AssertValid();
UNLOCK
ASSERT_LOCK_RELEASED
// reset the OidsToRemove list pointer since we mucked with it above.
pOidsToRemove = (OID_MID_PAIR *) (&pStatusOfAdds[cOidsToAdd]);
RPC_STATUS sc;
do
{
// call the Resolver.
sc = BulkUpdateOIDs(_hRpc, // Rpc binding handle
_ph, // context handle
cOidsToAdd, // #oids to add
pOidsToAddStart, // ptr to oids to add
pStatusOfAdds, // status of adds
cOidsToRemove, // #oids to remove
pOidsToRemove, // ptr to oids to remove
0, 0, // ptr to oids to free
cOxidsToRemove, // #oxids to remove
pOxidsToRemove); // ptr to oxids to remove
} while (RetryRPC(sc));
// map status if necessary
sc = CheckStatus(sc);
// CODEWORK: reset the status flags for any OIDs not successfully added
// to the resolver.
// release the memory allocated above
PrivMemFree(pOidsToAddStart);
#if DBG==1
LOCK
AssertValid();
UNLOCK
#endif
ASSERT_LOCK_RELEASED
ComDebOut((DEB_OXID, "ClientBulkUpdateOIDWithPingServer hr:%x\n", S_OK));
return S_OK;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::EnsureWorkerThread
//
// Synopsis: Make sure there is a worker thread. Create one if
// necessary.
//
// History: 06-Nov-95 Rickhi Created.
//
//--------------------------------------------------------------------
HRESULT CRpcResolver::EnsureWorkerThread(void)
{
ASSERT_LOCK_HELD
HRESULT hr = S_OK;
if (_hThrd == NULL)
{
// no worker thread currently exists, try to create one. First, make
// sure that we have a connection to the resolver.
hr = GetConnection();
if (SUCCEEDED(hr))
{
DWORD dwThrdId;
_hThrd = CreateThread(NULL, 0,
WorkerThreadLoop,
0, 0, &dwThrdId);
if (_hThrd)
{
// although the handle is closed, it is NOT nulled until
// the worker thread exits. That is the signal that there
// is no more worker thread and we may need to allocate
// another one.
CloseHandle(_hThrd);
}
else
{
// unable to create worker thread
hr = HRESULT_FROM_WIN32(GetLastError());
ComDebOut((DEB_ERROR,"Create Resolver worker thread hr:%x\n",hr));
}
}
}
ASSERT_LOCK_HELD
return hr;
}
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::WorkerThreadLoop
//
// Synopsis: Worker thread for doing lazy/bulk OID registration
// with the ping server.
//
// History: 06-Nov-95 Rickhi Created.
//
//--------------------------------------------------------------------
DWORD _stdcall CRpcResolver::WorkerThreadLoop(void *param)
{
// First thing we need to do is LoadLibrary ourselves in order to
// prevent our code from going away while this worker thread exists.
// The library will be freed when this thread exits.
HINSTANCE hInst = LoadLibrary(L"OLE32.DLL");
while (TRUE)
{
// sleep for a while to let the OIDs batch up in the registration list
Sleep(_dwSleepPeriod);
ASSERT_LOCK_RELEASED
LOCK
if (_cOidsToAdd == 0 && _cOidsToRemove == 0)
{
// There is no work to do. Exit this thread. If we need to
// register more oids later we will spin up another thread.
_hThrd = NULL;
UNLOCK
break;
}
ASSERT_LOCK_HELD
ClientBulkUpdateOIDWithPingServer();
ASSERT_LOCK_RELEASED
}
// Simultaneously free our Dll and exit our thread. This allows us to
// keep our Dll around incase a remote call was is progress and the
// worker thread is still blocked on the call, and allows us to cleanup
// properly when all threads are done with the code.
ASSERT_LOCK_RELEASED
FreeLibraryAndExitThread(hInst, 0);
// compiler wants a return value
return 0;
}
#if DBG==1
//+-------------------------------------------------------------------
//
// Member: CRpcResolver::AssertValid
//
// Synopsis: validates the state of this object
//
// History: 30-Oct-95 Rickhi Created.
//
//--------------------------------------------------------------------
void CRpcResolver::AssertValid(void)
{
ASSERT_LOCK_HELD
Win4Assert((_cOidsToAdd & 0xf0000000) == 0x00000000);
Win4Assert((_cOidsToRemove & 0xf0000000) == 0x00000000);
if (_cOidsToAdd == 0 && _cOidsToRemove == 0)
{
// make sure the Reg list is empty.
Win4Assert(_ClientOIDRegList.pPrevList == &_ClientOIDRegList);
Win4Assert(_ClientOIDRegList.pNextList == &_ClientOIDRegList);
}
else
{
// make sure we have a worker thread. we cant assert because
// we could be OOM trying to create the thread.
if (_hThrd == NULL)
{
ComDebOut((DEB_WARN, "No Resolver Worked Thread\n"));
}
// make sure the Reg list is consistent with the counters
ULONG cAdd = 0;
ULONG cRemove = 0;
SOIDRegistration *pOIDReg = _ClientOIDRegList.pNextList;
while (pOIDReg != &_ClientOIDRegList)
{
// make sure the flags are valid
Win4Assert(pOIDReg->flags == ROIDF_REGISTER ||
pOIDReg->flags == ROIDF_DEREGISTER ||
pOIDReg->flags == ROIDF_PING ||
pOIDReg->flags == (ROIDF_PING | ROIDF_REGISTER));
if (pOIDReg->flags & (ROIDF_REGISTER | ROIDF_PING))
{
// OID is to be registered
cAdd++;
}
if (pOIDReg->flags == ROIDF_DEREGISTER ||
pOIDReg->flags == ROIDF_PING)
{
// OID is to be deregistered
cRemove++;
}
pOIDReg = pOIDReg->pNextList;
}
Win4Assert(cAdd == _cOidsToAdd);
Win4Assert(cRemove == _cOidsToRemove);
}
ASSERT_LOCK_HELD
}
#endif
//+------------------------------------------------------------------------
//
// Function: MakeSCMProxy, public
//
// Synopsis: Creates an OXIDEntry and a proxy for the SCM Activation
// Interface.
//
// History: 14 Apr 95 AlexMit Created
//
//-------------------------------------------------------------------------
INTERNAL MakeSCMProxy(DUALSTRINGARRAY *psaSCM, REFIID riid, void **ppSCM)
{
ComDebOut((DEB_OXID, "MakeSCMProxy psaSCM:%x ppSCM:%x\n", psaSCM, ppSCM));
Win4Assert(gdwScmProcessID != 0);
// Init out parameter
*ppSCM = NULL;
// Make a fake OXIDEntry for the SCM.
OXID_INFO oxidInfo;
oxidInfo.dwTid = 0;
oxidInfo.dwPid = gdwScmProcessID;
oxidInfo.ipidRemUnknown = GUID_NULL;
oxidInfo.psa = psaSCM;
oxidInfo.dwAuthnHint = RPC_C_AUTHN_LEVEL_NONE;
LOCK
OXIDEntry *pOXIDEntry;
MIDEntry *pMIDEntry;
HRESULT hr = GetLocalMIDEntry(&pMIDEntry); // not AddRef'd
if (SUCCEEDED(hr))
{
// Make a fake OXID for the SCM. We can use any ID that the resolver
// hands out as the OXID for the SCM.
OXID oxid;
hr = gResolver.ServerGetReservedID(&oxid);
if (SUCCEEDED(hr))
{
hr = gOXIDTbl.AddEntry(oxid, &oxidInfo, pMIDEntry, &pOXIDEntry);
}
if (SUCCEEDED(hr))
{
// Make an object reference for the SCM. The oid and ipid dont
// matter, except the OID must be machine-unique.
IPID ipidTmp;
UuidCreate(&ipidTmp); // fake the IPID
OBJREF objref;
hr = MakeFakeObjRef(objref, pOXIDEntry, ipidTmp, riid);
if (SUCCEEDED(hr))
{
// now unmarshal the objref to create a proxy to the SCM.
// use the internal form to reduce initialization time.
UNLOCK
hr = UnmarshalInternalObjRef(objref, ppSCM);
if (SUCCEEDED(hr) && gImpLevel != RPC_C_IMP_LEVEL_IMPERSONATE)
{
// Make sure SCM can impersonate us.
hr = CoSetProxyBlanket( (IUnknown *) *ppSCM,
RPC_C_AUTHN_WINNT,
RPC_C_AUTHZ_NONE, NULL,
RPC_C_AUTHN_LEVEL_CONNECT,
RPC_C_IMP_LEVEL_IMPERSONATE,
NULL, EOAC_NONE );
if (FAILED(hr))
{
((IUnknown *) (*ppSCM))->Release();
*ppSCM = NULL;
}
}
LOCK
}
// release the reference to the OXIDEntry from AddEntry, since
// UnmarshalInternalObjRef added another one if it was successful.
DecOXIDRefCnt(pOXIDEntry);
}
}
UNLOCK
ComDebOut((DEB_OXID, "MakeSCMProxy hr:%x *ppSCM:%x\n", hr, *ppSCM));
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::BindToSCMProxy
//
// Synopsis: Get a proxy to the SCM Activation interface.
//
// History: 19-May-95 Rickhi Created
//
// Notes: The SCM activation interface is an ORPC interface so that
// apartment model apps can receive callbacks and do cancels
// while activating object servers.
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::BindToSCMProxy()
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::BindToSCMProxy"));
// since we are calling out on this thread, we have to ensure that the
// call control is set up for this thread.
HRESULT hr = InitChannelIfNecessary();
if (FAILED(hr))
return hr;
COleStaticLock lck(gmxsOleMisc);
if (IsSTAThread())
{
if (_pSCMSTA == NULL)
{
// Make a proxy to the SCM
hr = MakeSCMProxy((DUALSTRINGARRAY *)&saSCM, IID_IDSCM, (void **) &_pSCMSTA);
}
}
else
{
if (_pSCMMTA == NULL)
{
// Make a proxy to the SCM
hr = MakeSCMProxy((DUALSTRINGARRAY *)&saSCM, IID_IDSCM, (void **) &_pSCMMTA);
}
}
ComDebOut((SUCCEEDED(hr) ? DEB_SCM : DEB_ERROR,
"CCoScm::BindToSCMProxy for IDSCM returns %x.\n", hr));
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::NotifyStarted
//
// Synopsis: Notify the SCM that a class has been started
//
// Arguments: [rclsid] - class started
// [dwFlags] - whether class is multiple use or not.
//
// History: 19-May-92 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::NotifyStarted(
RegInput *pRegIn,
RegOutput **ppRegOut)
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::NotifyStarted"));
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat;
WCHAR * pwszWinstaDesktop;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
do
{
hr = ServerRegisterClsid(
_hRpc,
_ph,
pwszWinstaDesktop,
pRegIn,
ppRegOut,
&rpcstat );
} while (RetryRPC(rpcstat));
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
ComDebOut(( (hr == S_OK) ? DEB_SCM : DEB_ERROR,
"Class Registration returned %x", hr));
if (rpcstat != RPC_S_OK)
{
hr = HRESULT_FROM_WIN32(rpcstat);
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::NotifyStopped
//
// Synopsis: Notify the SCM that the server is stopped.
//
// History: 19-May-92 Ricksa Created
//
//--------------------------------------------------------------------------
void CRpcResolver::NotifyStopped(
REFCLSID rclsid,
DWORD dwReg)
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::NotifyStopped"));
error_status_t rpcstat;
RevokeClasses revcls;
revcls.dwSize = 1;
revcls.revent[0].clsid = rclsid;
revcls.revent[0].dwReg = dwReg;
do
{
ServerRevokeClsid(_hRpc, _ph, &revcls, &rpcstat);
} while (RetryRPC(rpcstat));
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::GetClassObject
//
// Synopsis: Send a get object request to the SCM
//
// Arguments: [rclsid] - class id for class object
// [dwCtrl] - type of server required
// [ppIFDClassObj] - marshaled buffer for class object
// [ppwszDllToLoad] - DLL name to use for server
//
// Returns: S_OK
//
// History: 20-May-93 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::GetClassObject(
REFCLSID rclsid,
DWORD dwContext,
IID *pIID,
COSERVERINFO *pServerInfo,
MInterfacePointer **ppIFDClassObj,
DWORD *pdwDllServerType,
WCHAR **ppwszDllToLoad)
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::GetClassObject"));
HRESULT hr;
ACTIVATION_INFO ActivationInfo;
OXID OxidServer;
DUALSTRINGARRAY * pssaServerObjectResolverBindings;
OXID_INFO OxidInfo;
MID LocalMidOfRemote;
OXIDEntry * pOxidEntry;
LPWSTR pwszWinstaDesktop;
hr = BindToSCMProxy();
if (FAILED(hr))
return hr;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
ActivationInfo.Clsid = &rclsid;
ActivationInfo.pServerInfo = pServerInfo;
ActivationInfo.pwszWinstaDesktop = pwszWinstaDesktop;
ActivationInfo.ClsContext = dwContext;
ActivationInfo.ProcessSignature = _dwProcessSignature;
ActivationInfo.bDynamicSecurity = _bDynamicSecurity;
pssaServerObjectResolverBindings = 0;
OxidInfo.psa = 0;
pOxidEntry = 0;
hr = GetSCM()->SCMGetClassObject(
&ActivationInfo,
pIID,
IsSTAThread(),
&OxidServer,
&pssaServerObjectResolverBindings,
&OxidInfo,
&LocalMidOfRemote,
ppIFDClassObj );
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if ( FAILED(hr) || (OxidServer == 0) )
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::GetClassObject hr:%x", hr));
return hr;
}
ASSERT_LOCK_RELEASED
LOCK
hr = FindOrCreateOXIDEntry(
OxidServer,
OxidInfo,
FOCOXID_REF,
pssaServerObjectResolverBindings,
LocalMidOfRemote,
NULL,
&pOxidEntry );
CoTaskMemFree(OxidInfo.psa);
CoTaskMemFree(pssaServerObjectResolverBindings);
//
// CODEWORK CODEWORK CODEWORK
//
// These comments also apply to CreateInstance and GetPersistentInstance
// methods.
//
// Releasing the OXID and reacquiring it makes me a little
// nervous. The Expired list is fairly short, so if multiple guys are doing
// this simultaneously, the entries could get lost. I guess this is not
// too bad since it should be rare and the local resolver will have it
// anyway, but I think there is a window where the local resolver could
// lose it too, forcing a complete roundtrip back to the server.
//
// A better mechanism may be to pass the iid and ppunk into this method
// and do the unmarshal inside it. We could improve performance by calling
// UnmarshalObjRef instead of putting a stream wrapper around the
// MInterfacePointer and then calling CoUnmarshalInterface. It would avoid
// looking up the OXIDEntry twice, and would avoid the race where we could
// lose the OXIDEntry off the expired list. It would require a small
// change in UnmarshalObjRef to deal with the custom marshal case.
//
//
// Decrement our ref. The interface unmarshall will do a LookupOXID
// which will increment the count and move the OXIDEntry back to the
// InUse list.
//
if ( pOxidEntry )
DecOXIDRefCnt(pOxidEntry);
UNLOCK
ASSERT_LOCK_RELEASED
ComDebOut((DEB_ACTIVATE, "CRpcResolver::GetClassObject hr:%x", hr));
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::CreateInstance
//
// Synopsis: Send a create instance request to the SCM
//
// Arguments:
//
// Returns: S_OK
//
// History: 20-May-93 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::CreateInstance(
COSERVERINFO *pServerInfo,
CLSID *pClsid,
DWORD dwClsCtx,
DWORD dwCount,
IID *pIIDs,
MInterfacePointer **pRetdItfs,
HRESULT *pRetdHrs,
DWORD *pdwDllServerType,
OLECHAR **ppwszDllToLoad )
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::CreateInstance"));
HRESULT hr;
ACTIVATION_INFO ActivationInfo;
OXID OxidServer;
DUALSTRINGARRAY * pssaServerObjectResolverBindings;
OXID_INFO OxidInfo;
MID LocalMidOfRemote;
OXIDEntry * pOxidEntry;
LPWSTR pwszWinstaDesktop;
hr = BindToSCMProxy();
if (FAILED(hr))
return hr;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
ActivationInfo.Clsid = pClsid;
ActivationInfo.pServerInfo = pServerInfo;
ActivationInfo.pwszWinstaDesktop = pwszWinstaDesktop;
ActivationInfo.ClsContext = dwClsCtx;
ActivationInfo.ProcessSignature = _dwProcessSignature;
ActivationInfo.bDynamicSecurity = _bDynamicSecurity;
pssaServerObjectResolverBindings = 0;
OxidInfo.psa = 0;
pOxidEntry = 0;
hr = GetSCM()->SCMCreateInstance(
&ActivationInfo,
dwCount,
pIIDs,
IsSTAThread(),
&OxidServer,
&pssaServerObjectResolverBindings,
&OxidInfo,
&LocalMidOfRemote,
pRetdItfs,
pRetdHrs );
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if ( FAILED(hr) || (OxidServer == 0) )
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::CreateInstance hr:%x", hr));
return hr;
}
ASSERT_LOCK_RELEASED
LOCK
hr = FindOrCreateOXIDEntry(
OxidServer,
OxidInfo,
FOCOXID_REF,
pssaServerObjectResolverBindings,
LocalMidOfRemote,
NULL,
&pOxidEntry );
CoTaskMemFree(OxidInfo.psa);
CoTaskMemFree(pssaServerObjectResolverBindings);
//
// Decrement our ref. The interface unmarshall will do a LookupOXID
// which will increment the count and move the OXIDEntry back to the
// InUse list.
//
if ( pOxidEntry )
DecOXIDRefCnt(pOxidEntry);
UNLOCK
ASSERT_LOCK_RELEASED
ComDebOut((DEB_ACTIVATE, "CRpcResolver::CreateInstance hr:%x", hr));
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::GetPersistentInstance
//
// Synopsis: Send a get object request to the SCM
//
//GAJGAJ - fix this comment block
// Arguments: [rclsid] - class id for class object
// [dwCtrl] - type of server required
// [ppIFDClassObj] - marshaled buffer for class object
// [ppwszDllToLoad] - DLL name to use for server
//
// Returns: S_OK
//
// History: 20-May-93 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::GetPersistentInstance(
COSERVERINFO * pServerInfo,
CLSID *pClsid,
DWORD dwClsCtx,
DWORD grfMode,
BOOL bFileWasOpened,
OLECHAR *pwszName,
MInterfacePointer *pstg,
DWORD dwCount,
IID *pIIDs,
BOOL * FoundInROT,
MInterfacePointer **pRetdItfs,
HRESULT *pRetdHrs,
DWORD *pdwDllServerType,
OLECHAR **ppwszDllToLoad )
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::GetPersistentInstance"));
HRESULT hr;
ACTIVATION_INFO ActivationInfo;
OXID OxidServer;
DUALSTRINGARRAY * pssaServerObjectResolverBindings;
OXID_INFO OxidInfo;
MID LocalMidOfRemote;
OXIDEntry * pOxidEntry;
LPWSTR pwszWinstaDesktop;
hr = BindToSCMProxy();
if (FAILED(hr))
return hr;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
ActivationInfo.Clsid = pClsid;
ActivationInfo.pServerInfo = pServerInfo;
ActivationInfo.pwszWinstaDesktop = pwszWinstaDesktop;
ActivationInfo.ClsContext = dwClsCtx;
ActivationInfo.ProcessSignature = _dwProcessSignature;
ActivationInfo.bDynamicSecurity = _bDynamicSecurity;
pssaServerObjectResolverBindings = 0;
OxidInfo.psa = 0;
pOxidEntry = 0;
hr = GetSCM()->SCMGetPersistentInstance(
&ActivationInfo,
pwszName,
pstg,
grfMode,
bFileWasOpened,
dwCount,
pIIDs,
IsSTAThread(),
&OxidServer,
&pssaServerObjectResolverBindings,
&OxidInfo,
&LocalMidOfRemote,
FoundInROT,
pRetdItfs,
pRetdHrs );
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if ( FAILED(hr) || (OxidServer == 0) )
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::GetPersistentInstance hr:%x",hr));
return hr;
}
ASSERT_LOCK_RELEASED
LOCK
hr = FindOrCreateOXIDEntry(
OxidServer,
OxidInfo,
FOCOXID_REF,
pssaServerObjectResolverBindings,
LocalMidOfRemote,
NULL,
&pOxidEntry );
CoTaskMemFree(OxidInfo.psa);
CoTaskMemFree(pssaServerObjectResolverBindings);
//
// Decrement our ref. The interface unmarshall will do a LookupOXID
// which will increment the count and move the OXIDEntry back to the
// InUse list.
//
if ( pOxidEntry )
DecOXIDRefCnt(pOxidEntry);
UNLOCK
ASSERT_LOCK_RELEASED
ComDebOut((DEB_ACTIVATE, "CRpcResolver::GetPersistentInstance hr:%x", hr));
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::IrotRegister
//
// Synopsis: Register an object in the ROT
//
// Arguments: [pmkeqbuf] - moniker compare buffer
// [pifdObject] - marshaled interface for object
// [pifdObjectName] - marshaled moniker
// [pfiletime] - file time of last change
// [dwProcessID] -
// [psrkRegister] - output of registration
//
// Returns: S_OK
//
// History: 28-Jan-95 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::IrotRegister(
MNKEQBUF *pmkeqbuf,
InterfaceData *pifdObject,
InterfaceData *pifdObjectName,
FILETIME *pfiletime,
DWORD dwProcessID,
WCHAR *pwszServerExe,
SCMREGKEY *psrkRegister)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat = RPC_S_OK;
WCHAR * pwszWinstaDesktop;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
do
{
hr = ::IrotRegister(
_hRpc,
_ph,
pwszWinstaDesktop,
pmkeqbuf,
pifdObject,
pifdObjectName,
pfiletime,
dwProcessID,
pwszServerExe,
psrkRegister,
&rpcstat);
} while (RetryRPC(rpcstat));
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if (rpcstat != RPC_S_OK)
{
hr = CO_E_SCM_RPC_FAILURE;
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::IrotRevoke
//
// Synopsis: Call to SCM to revoke object from the ROT
//
// Arguments: [psrkRegister] - moniker compare buffer
// [fServerRevoke] - whether server for object is revoking
// [pifdObject] - where to put marshaled object
// [pifdName] - where to put marshaled moniker
//
// Returns: S_OK
//
// History: 28-Jan-95 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::IrotRevoke(
SCMREGKEY *psrkRegister,
BOOL fServerRevoke,
InterfaceData **ppifdObject,
InterfaceData **ppifdName)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat = RPC_S_OK;
do
{
hr = ::IrotRevoke(
_hRpc,
psrkRegister,
fServerRevoke,
ppifdObject,
ppifdName,
&rpcstat);
} while (RetryRPC(rpcstat));
if (rpcstat != RPC_S_OK)
{
hr = CO_E_SCM_RPC_FAILURE;
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::IrotIsRunning
//
// Synopsis: Call to SCM to determine if object is in the ROT
//
// Arguments: [pmkeqbuf] - moniker compare buffer
//
// Returns: S_OK
//
// History: 28-Jan-95 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::IrotIsRunning(MNKEQBUF *pmkeqbuf)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat = RPC_S_OK;
WCHAR * pwszWinstaDesktop;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
do
{
hr = ::IrotIsRunning(
_hRpc,
_ph,
pwszWinstaDesktop,
pmkeqbuf,
&rpcstat);
} while (RetryRPC(rpcstat));
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if (rpcstat != RPC_S_OK)
{
hr = CO_E_SCM_RPC_FAILURE;
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::IrotGetObject
//
// Synopsis: Call to SCM to determine if object is in the ROT
//
// Arguments: [dwProcessID] - process ID for object we want
// [pmkeqbuf] - moniker compare buffer
// [psrkRegister] - registration ID in SCM
// [pifdObject] - marshaled interface for the object
//
// Returns: S_OK
//
// History: 28-Jan-95 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::IrotGetObject(
DWORD dwProcessID,
MNKEQBUF *pmkeqbuf,
SCMREGKEY *psrkRegister,
InterfaceData **pifdObject)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat = RPC_S_OK;
WCHAR * pwszWinstaDesktop;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
do
{
hr = ::IrotGetObject(
_hRpc,
_ph,
pwszWinstaDesktop,
dwProcessID,
pmkeqbuf,
psrkRegister,
pifdObject,
&rpcstat);
} while (RetryRPC(rpcstat));
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if (rpcstat != RPC_S_OK)
{
hr = CO_E_SCM_RPC_FAILURE;
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::IrotNoteChangeTime
//
// Synopsis: Call to SCM to set time of change for object in the ROT
//
// Arguments: [psrkRegister] - SCM registration ID
// [pfiletime] - time of change
//
// Returns: S_OK
//
// History: 28-Jan-95 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::IrotNoteChangeTime(
SCMREGKEY *psrkRegister,
FILETIME *pfiletime)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat = RPC_S_OK;
do
{
hr = ::IrotNoteChangeTime(
_hRpc,
psrkRegister,
pfiletime,
&rpcstat);
} while (RetryRPC(rpcstat));
if (rpcstat != RPC_S_OK)
{
hr = CO_E_SCM_RPC_FAILURE;
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::IrotGetTimeOfLastChange
//
// Synopsis: Call to SCM to get time changed of object in the ROT
//
// Arguments: [pmkeqbuf] - moniker compare buffer
// [pfiletime] - where to put time of last change
//
// Returns: S_OK
//
// History: 28-Jan-95 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::IrotGetTimeOfLastChange(
MNKEQBUF *pmkeqbuf,
FILETIME *pfiletime)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat = RPC_S_OK;
WCHAR * pwszWinstaDesktop;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
do
{
hr = ::IrotGetTimeOfLastChange(
_hRpc,
_ph,
pwszWinstaDesktop,
pmkeqbuf,
pfiletime,
&rpcstat);
} while (RetryRPC(rpcstat));
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if (rpcstat != RPC_S_OK)
{
hr = CO_E_SCM_RPC_FAILURE;
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::IrotEnumRunning
//
// Synopsis: Call to SCM to enumerate running objects in the ROT
//
// Arguments: [ppMkIFList] - output pointer to array of marshaled monikers
//
// Returns: S_OK
//
// History: 28-Jan-95 Ricksa Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::IrotEnumRunning(MkInterfaceList **ppMkIFList)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat = RPC_S_OK;
WCHAR * pwszWinstaDesktop;
hr = GetWinstaDesktop( &pwszWinstaDesktop );
if ( FAILED(hr) )
return hr;
do
{
hr = ::IrotEnumRunning(
_hRpc,
_ph,
pwszWinstaDesktop,
ppMkIFList,
&rpcstat);
} while (RetryRPC(rpcstat));
if ( pwszWinstaDesktop != _pwszWinstaDesktop )
PrivMemFree( pwszWinstaDesktop );
if (rpcstat != RPC_S_OK)
{
hr = CO_E_SCM_RPC_FAILURE;
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::UpdateShrdTbls
//
// Synopsis: Ask the SCM to update the shared memory tables.
//
// Arguments: none
//
// History: 11-July-94 Rickhi Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::UpdateShrdTbls(void)
{
ComDebOut((DEB_ACTIVATE, "CRpcResolver::UpdateShrdTbls"));
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat;
do
{
hr = ::UpdateShrdTbls(_hRpc, &rpcstat);
} while (RetryRPC(rpcstat));
ComDebOut(( (hr == S_OK) ? DEB_SCM : DEB_ERROR,
"UpdateShrdTbls returned %x\n", hr));
if (rpcstat != RPC_S_OK)
{
return HRESULT_FROM_WIN32(rpcstat);
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::GetThreadID
//
// Synopsis: Get unique thread id from SCM.
//
// Arguments: [pThreadID] - Pointer to returned thread ID.
//
// History: 22-Jan-96 Rickhi Created
//--------------------------------------------------------------------------
void CRpcResolver::GetThreadID( DWORD * pThreadID )
{
HRESULT hr;
*pThreadID = 0;
hr = GetConnection();
if ( FAILED(hr) )
return;
//
// If GetConnection does the initial connect to the SCM/OR then
// our apartment thread id, which is aliased by pThreadID, will be set.
//
if ( *pThreadID != 0 )
return;
error_status_t rpcstat;
do
{
::GetThreadID( _hRpc, pThreadID, &rpcstat );
} while (RetryRPC(rpcstat));
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::UpdateActivationSettings
//
// Synopsis: Tells rpcss to re-read default activation keys/values.
// Used by OLE test team.
//
// Arguments: none
//
//--------------------------------------------------------------------------
void CRpcResolver::UpdateActivationSettings()
{
HRESULT hr;
hr = GetConnection();
if ( FAILED(hr) )
return;
error_status_t rpcstat;
do
{
::UpdateActivationSettings( _hRpc, &rpcstat );
} while (RetryRPC(rpcstat));
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::RegisterWindowPropInterface
//
// Synopsis: Register window property interface with the SCM
//
// Arguments:
//
// History: 22-Jan-96 Rickhi Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::RegisterWindowPropInterface(HWND hWnd, STDOBJREF *pStd,
OXID_INFO *pOxidInfo,
DWORD *pdwCookie)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat;
do
{
hr = ::RegisterWindowPropInterface(_hRpc, (DWORD) hWnd,
pStd, pOxidInfo, pdwCookie, &rpcstat);
} while (RetryRPC(rpcstat));
ComDebOut(( (hr == S_OK) ? DEB_SCM : DEB_ERROR,
"RegisterWindowPropInterface returned %x\n", hr));
if (rpcstat != RPC_S_OK)
{
return HRESULT_FROM_WIN32(rpcstat);
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::RegisterWindowPropInterface
//
// Synopsis: Get (and possibly Revoke) window property interface
// registration with the SCM.
//
// Arguments:
//
// History: 22-Jan-96 Rickhi Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::GetWindowPropInterface(HWND hWnd, DWORD dwCookie, BOOL fRevoke,
STDOBJREF *pStd, OXID_INFO *pOxidInfo)
{
// Bind to the SCM if that hasn't already happened
HRESULT hr = GetConnection();
if (FAILED(hr))
return hr;
error_status_t rpcstat;
do
{
hr = ::GetWindowPropInterface(_hRpc, (DWORD) hWnd, dwCookie, fRevoke,
pStd, pOxidInfo, &rpcstat);
} while (RetryRPC(rpcstat));
ComDebOut(( (hr == S_OK) ? DEB_SCM : DEB_ERROR,
"GetWindowPropInterface returned %x\n", hr));
if (rpcstat != RPC_S_OK)
{
return HRESULT_FROM_WIN32(rpcstat);
}
return hr;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::SetWinstaDesktop
//
// Purpose: Sets the default winsta\desktop string we'll use for this
// process.
//
// Returns: Success code.
//
// History: Nov 96 DKays Created
//
//--------------------------------------------------------------------------
DWORD CRpcResolver::SetWinstaDesktop()
{
return GetThreadWinstaDesktop( &_pwszWinstaDesktop );
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::GetWinstaDesktop
//
// Purpose: Gets the winsta\desktop string to use for an activation call.
//
// Returns: Success code.
//
// History: Nov 96 DKays Created
//
//--------------------------------------------------------------------------
HRESULT CRpcResolver::GetWinstaDesktop( WCHAR ** ppwszWinstaDesktop )
{
DWORD Status;
*ppwszWinstaDesktop = 0;
if ( ! _bDynamicSecurity )
{
*ppwszWinstaDesktop = _pwszWinstaDesktop;
return S_OK;
}
Status = GetThreadWinstaDesktop( ppwszWinstaDesktop );
return HRESULT_FROM_WIN32( Status );
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::GetDynamicSecurity
//
// Purpose: Get the dynamic security setting for the process.
//
// Returns: TRUE or FALSE
//
// History: Nov 96 DKays Created
//
//--------------------------------------------------------------------------
BOOL CRpcResolver::GetDynamicSecurity()
{
return _bDynamicSecurity;
}
//+-------------------------------------------------------------------------
//
// Member: CRpcResolver::SetDynamicSecurity
//
// Purpose: Set the dynamic security setting for the process to TRUE.
//
// Returns: None.
//
// History: Nov 96 DKays Created
//
//--------------------------------------------------------------------------
void CRpcResolver::SetDynamicSecurity()
{
_bDynamicSecurity = TRUE;
}
//+-------------------------------------------------------------------------
//
// Method: GetThreadWinstaDesktop
//
// Purpose: Get the winsta\desktop string for the calling thread.
//
// Returns: Success code.
//
// History: Nov-96 DKays Created
//
//--------------------------------------------------------------------------
DWORD GetThreadWinstaDesktop( WCHAR ** ppwszWinstaDesktop )
{
HWINSTA hWinsta;
HDESK hDesk;
WCHAR wszWinsta[32];
WCHAR wszDesktop[32];
LPWSTR pwszWinsta;
LPWSTR pwszDesktop;
DWORD WinstaSize;
DWORD DesktopSize;
DWORD Length;
BOOL Status;
DWORD Result;
*ppwszWinstaDesktop = 0;
hWinsta = GetProcessWindowStation();
if ( ! hWinsta )
return GetLastError();
hDesk = GetThreadDesktop(GetCurrentThreadId());
if ( ! hDesk )
return GetLastError();
pwszWinsta = wszWinsta;
pwszDesktop = wszDesktop;
Length = sizeof(wszWinsta);
Status = GetUserObjectInformation(
hWinsta,
UOI_NAME,
pwszWinsta,
Length,
&Length );
if ( ! Status )
{
Result = GetLastError();
if ( Result != ERROR_INSUFFICIENT_BUFFER )
goto WinstaDesktopExit;
pwszWinsta = (LPWSTR)PrivMemAlloc( Length );
if ( ! pwszWinsta )
{
Result = ERROR_OUTOFMEMORY;
goto WinstaDesktopExit;
}
Status = GetUserObjectInformation(
hWinsta,
UOI_NAME,
pwszWinsta,
Length,
&Length );
if ( ! Status )
{
Result = GetLastError();
goto WinstaDesktopExit;
}
}
Length = sizeof(wszDesktop);
Status = GetUserObjectInformation(
hDesk,
UOI_NAME,
pwszDesktop,
Length,
&Length );
if ( ! Status )
{
Result = GetLastError();
if ( Result != ERROR_INSUFFICIENT_BUFFER )
goto WinstaDesktopExit;
pwszDesktop = (LPWSTR)PrivMemAlloc( Length );
if ( ! pwszDesktop )
{
Result = ERROR_OUTOFMEMORY;
goto WinstaDesktopExit;
}
Status = GetUserObjectInformation(
hDesk,
UOI_NAME,
pwszDesktop,
Length,
&Length );
if ( ! Status )
{
Result = GetLastError();
goto WinstaDesktopExit;
}
}
*ppwszWinstaDesktop = (WCHAR *)
PrivMemAlloc( (lstrlenW(pwszWinsta) + 1 + lstrlenW(pwszDesktop) + 1) * sizeof(WCHAR) );
if ( *ppwszWinstaDesktop )
{
lstrcpyW( *ppwszWinstaDesktop, pwszWinsta );
lstrcatW( *ppwszWinstaDesktop, L"\\" );
lstrcatW( *ppwszWinstaDesktop, pwszDesktop );
Result = S_OK;
}
else
{
Result = ERROR_OUTOFMEMORY;
}
WinstaDesktopExit:
if ( pwszWinsta != wszWinsta )
PrivMemFree( pwszWinsta );
if ( pwszDesktop != wszDesktop )
PrivMemFree( pwszDesktop );
return Result;
}
//+-------------------------------------------------------------------------
//
// Method: ScmGetThreadId
//
// Purpose: Stupid helper method so gResolver is not used in
// com\class subdir.
//
//--------------------------------------------------------------------------
void ScmGetThreadId( DWORD * pThreadID )
{
gResolver.GetThreadID( pThreadID );
}
//+---------------------------------------------------------------------
//
// Function: UpdateDCOMSettings
//
// Synopsis: Calls rpcss to re-read the default activation keys/values.
//
//----------------------------------------------------------------------
STDAPI_(void) UpdateDCOMSettings(void)
{
gResolver.UpdateActivationSettings();
}