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[SERVICES]

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Lock the service database in order to protect it from concurrent access.

svn path=/trunk/; revision=51427
This commit is contained in:
Eric Kohl 2011-04-22 14:09:21 +00:00
parent 295e7d388c
commit d58660ce71
1 changed files with 90 additions and 40 deletions
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130
reactos/base/system/services/rpcserver.c
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@ -455,6 +455,8 @@ DWORD RCloseServiceHandle(
HeapFree(GetProcessHeap(), 0, hManager);
hManager = NULL;
*hSCObject = NULL;
DPRINT("RCloseServiceHandle() done\n");
return ERROR_SUCCESS;
}
@ -462,6 +464,9 @@ DWORD RCloseServiceHandle(
{
DPRINT("Found service handle\n");
/* Lock the service database exlusively */
ScmLockDatabaseExclusive();
/* Get the pointer to the service record */
lpService = hService->ServiceEntry;
@ -491,6 +496,7 @@ DWORD RCloseServiceHandle(
if (dwError != ERROR_SUCCESS)
{
DPRINT("Failed to open services key\n");
ScmUnlockDatabase();
return dwError;
}
@ -507,6 +513,7 @@ DWORD RCloseServiceHandle(
{
DPRINT("Deletion failed due to running dependencies.\n");
RegCloseKey(hServicesKey);
ScmUnlockDatabase();
return ERROR_SUCCESS;
}
@ -522,6 +529,7 @@ DWORD RCloseServiceHandle(
if (dwError != ERROR_SUCCESS)
{
DPRINT("Failed to Delete the Service Registry key\n");
ScmUnlockDatabase();
return dwError;
}
@ -530,6 +538,10 @@ DWORD RCloseServiceHandle(
}
}
ScmUnlockDatabase();
*hSCObject = NULL;
DPRINT("RCloseServiceHandle() done\n");
return ERROR_SUCCESS;
}
@ -755,12 +767,14 @@ DWORD RDeleteService(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Acquire service database lock exclusively */
/* Lock the service database exclusively */
ScmLockDatabaseExclusive();
if (lpService->bDeleted)
{
DPRINT("The service has already been marked for delete!\n");
return ERROR_SERVICE_MARKED_FOR_DELETE;
dwError = ERROR_SERVICE_MARKED_FOR_DELETE;
goto Done;
}
/* Mark service for delete */
@ -768,7 +782,9 @@ DWORD RDeleteService(
dwError = ScmMarkServiceForDelete(lpService);
/* FIXME: Release service database lock */
Done:;
/* Unlock the service database */
ScmUnlockDatabase();
DPRINT("RDeleteService() done\n");
@ -1047,6 +1063,7 @@ DWORD RQueryServiceStatus(
return ERROR_INVALID_HANDLE;
}
/* Lock the srevice database shared */
ScmLockDatabaseShared();
/* Return service status information */
@ -1054,6 +1071,7 @@ DWORD RQueryServiceStatus(
&lpService->Status,
sizeof(SERVICE_STATUS));
/* Unlock the service database */
ScmUnlockDatabase();
return ERROR_SUCCESS;
@ -1132,12 +1150,14 @@ DWORD RSetServiceStatus(
return ERROR_INVALID_DATA;
}
/* Lock the service database exclusively */
ScmLockDatabaseExclusive();
RtlCopyMemory(&lpService->Status,
lpServiceStatus,
sizeof(SERVICE_STATUS));
/* Unlock the service database */
ScmUnlockDatabase();
DPRINT("Set %S to %lu\n", lpService->lpDisplayName, lpService->Status.dwCurrentState);
@ -1233,13 +1253,14 @@ DWORD RChangeServiceConfigW(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Lock database exclusively */
/* Lock the service database exclusively */
ScmLockDatabaseExclusive();
if (lpService->bDeleted)
{
/* FIXME: Unlock database */
DPRINT("The service has already been marked for delete!\n");
return ERROR_SERVICE_MARKED_FOR_DELETE;
dwError = ERROR_SERVICE_MARKED_FOR_DELETE;
goto done;
}
/* Open the service key */
@ -1406,12 +1427,13 @@ DWORD RChangeServiceConfigW(
/* FIXME: Write password */
}
/* FIXME: Unlock database */
done:
if (hServiceKey != NULL)
RegCloseKey(hServiceKey);
/* Unlock the service database */
ScmUnlockDatabase();
DPRINT("RChangeServiceConfigW() done (Error %lu)\n", dwError);
return dwError;
@ -2326,7 +2348,8 @@ DWORD REnumServicesStatusW(
if (lpResumeHandle)
dwLastResumeCount = *lpResumeHandle;
/* FIXME: Lock the service list shared */
/* Lock the service database shared */
ScmLockDatabaseShared();
lpService = ScmGetServiceEntryByResumeCount(dwLastResumeCount);
if (lpService == NULL)
@ -2464,7 +2487,8 @@ DWORD REnumServicesStatusW(
}
Done:;
/* FIXME: Unlock the service list */
/* Unlock the service database */
ScmUnlockDatabase();
DPRINT("REnumServicesStatusW() done (Error %lu)\n", dwError);
@ -2532,7 +2556,7 @@ DWORD ROpenServiceW(
PSERVICE lpService;
PMANAGER_HANDLE hManager;
SC_HANDLE hHandle;
DWORD dwError;
DWORD dwError = ERROR_SUCCESS;
DPRINT("ROpenServiceW() called\n");
DPRINT("hSCManager = %p\n", hSCManager);
@ -2556,14 +2580,16 @@ DWORD ROpenServiceW(
if (!lpServiceName)
return ERROR_INVALID_ADDRESS;
/* FIXME: Lock the service list */
/* Lock the service database exclusive */
ScmLockDatabaseExclusive();
/* Get service database entry */
lpService = ScmGetServiceEntryByName(lpServiceName);
if (lpService == NULL)
{
DPRINT("Could not find a service!\n");
return ERROR_SERVICE_DOES_NOT_EXIST;
dwError = ERROR_SERVICE_DOES_NOT_EXIST;
goto Done;
}
/* Create a service handle */
@ -2572,7 +2598,7 @@ DWORD ROpenServiceW(
if (dwError != ERROR_SUCCESS)
{
DPRINT("ScmCreateServiceHandle() failed (Error %lu)\n", dwError);
return dwError;
goto Done;
}
/* Check the desired access */
@ -2582,7 +2608,7 @@ DWORD ROpenServiceW(
{
DPRINT("ScmCheckAccess() failed (Error %lu)\n", dwError);
HeapFree(GetProcessHeap(), 0, hHandle);
return dwError;
goto Done;
}
lpService->dwRefCount++;
@ -2591,9 +2617,13 @@ DWORD ROpenServiceW(
*lpServiceHandle = (SC_RPC_HANDLE)hHandle;
DPRINT("*hService = %p\n", *lpServiceHandle);
Done:;
/* Unlock the service database */
ScmUnlockDatabase();
DPRINT("ROpenServiceW() done\n");
return ERROR_SUCCESS;
return dwError;
}
@ -2644,7 +2674,8 @@ DWORD RQueryServiceConfigW(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Lock the service database shared */
/* Lock the service database shared */
ScmLockDatabaseShared();
dwError = ScmOpenServiceKey(lpService->lpServiceName,
KEY_READ,
@ -2784,6 +2815,9 @@ DWORD RQueryServiceConfigW(
*pcbBytesNeeded = dwRequiredSize;
Done:;
/* Unlock the service database */
ScmUnlockDatabase();
if (lpImagePath != NULL)
HeapFree(GetProcessHeap(), 0, lpImagePath);
@ -2796,8 +2830,6 @@ Done:;
if (hServiceKey != NULL)
RegCloseKey(hServiceKey);
/* FIXME: Unlock the service database */
DPRINT("RQueryServiceConfigW() done\n");
return dwError;
@ -3078,13 +3110,14 @@ DWORD RChangeServiceConfigA(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Lock database exclusively */
/* Lock the service database exclusively */
ScmLockDatabaseExclusive();
if (lpService->bDeleted)
{
/* FIXME: Unlock database */
DPRINT("The service has already been marked for delete!\n");
return ERROR_SERVICE_MARKED_FOR_DELETE;
dwError = ERROR_SERVICE_MARKED_FOR_DELETE;
goto done;
}
/* Open the service key */
@ -3299,9 +3332,10 @@ DWORD RChangeServiceConfigA(
/* FIXME: Write password */
}
/* FIXME: Unlock database */
done:
/* Unlock the service database */
ScmUnlockDatabase();
if (hServiceKey != NULL)
RegCloseKey(hServiceKey);
@ -3822,7 +3856,8 @@ DWORD RQueryServiceConfigA(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Lock the service database shared */
/* Lock the service database shared */
ScmLockDatabaseShared();
dwError = ScmOpenServiceKey(lpService->lpServiceName,
KEY_READ,
@ -3995,6 +4030,9 @@ DWORD RQueryServiceConfigA(
*pcbBytesNeeded = dwRequiredSize;
Done:;
/* Unlock the service database */
ScmUnlockDatabase();
if (lpImagePath != NULL)
HeapFree(GetProcessHeap(), 0, lpImagePath);
@ -4007,8 +4045,6 @@ Done:;
if (hServiceKey != NULL)
RegCloseKey(hServiceKey);
/* FIXME: Unlock the service database */
DPRINT("RQueryServiceConfigA() done\n");
return dwError;
@ -4444,13 +4480,14 @@ DWORD RChangeServiceConfig2W(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Lock database exclusively */
/* Lock the service database exclusively */
ScmLockDatabaseExclusive();
if (lpService->bDeleted)
{
/* FIXME: Unlock database */
DPRINT("The service has already been marked for delete!\n");
return ERROR_SERVICE_MARKED_FOR_DELETE;
dwError = ERROR_SERVICE_MARKED_FOR_DELETE;
goto done;
}
/* Open the service key */
@ -4490,7 +4527,9 @@ DWORD RChangeServiceConfig2W(
}
done:
/* FIXME: Unlock database */
/* Unlock the service database */
ScmUnlockDatabase();
if (hServiceKey != NULL)
RegCloseKey(hServiceKey);
@ -4545,7 +4584,8 @@ DWORD RQueryServiceConfig2A(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Lock the service database shared */
/* Lock the service database shared */
ScmLockDatabaseShared();
dwError = ScmOpenServiceKey(lpService->lpServiceName,
KEY_READ,
@ -4603,14 +4643,15 @@ DWORD RQueryServiceConfig2A(
}
done:
/* Unlock the service database */
ScmUnlockDatabase();
if (lpDescription != NULL)
HeapFree(GetProcessHeap(), 0, lpDescription);
if (hServiceKey != NULL)
RegCloseKey(hServiceKey);
/* FIXME: Unlock database */
DPRINT("RQueryServiceConfig2W() done (Error %lu)\n", dwError);
return dwError;
@ -4663,7 +4704,8 @@ DWORD RQueryServiceConfig2W(
return ERROR_INVALID_HANDLE;
}
/* FIXME: Lock the service database shared */
/* Lock the service database shared */
ScmLockDatabaseShared();
dwError = ScmOpenServiceKey(lpService->lpServiceName,
KEY_READ,
@ -4759,6 +4801,9 @@ DWORD RQueryServiceConfig2W(
}
done:
/* Unlock the service database */
ScmUnlockDatabase();
if (lpDescription != NULL)
HeapFree(GetProcessHeap(), 0, lpDescription);
@ -4771,8 +4816,6 @@ done:
if (hServiceKey != NULL)
RegCloseKey(hServiceKey);
/* FIXME: Unlock database */
DPRINT("RQueryServiceConfig2W() done (Error %lu)\n", dwError);
return dwError;
@ -4825,6 +4868,9 @@ DWORD RQueryServiceStatusEx(
return ERROR_INVALID_HANDLE;
}
/* Lock the service database shared */
ScmLockDatabaseShared();
lpStatus = (LPSERVICE_STATUS_PROCESS)lpBuffer;
/* Return service status information */
@ -4835,6 +4881,9 @@ DWORD RQueryServiceStatusEx(
lpStatus->dwProcessId = lpService->ProcessId; /* FIXME */
lpStatus->dwServiceFlags = 0; /* FIXME */
/* Unlock the service database */
ScmUnlockDatabase();
return ERROR_SUCCESS;
}
@ -5028,9 +5077,10 @@ DWORD REnumServicesStatusExW(
return ERROR_ACCESS_DENIED;
}
if (lpResumeIndex) dwLastResumeCount = *lpResumeIndex;
if (lpResumeIndex)
dwLastResumeCount = *lpResumeIndex;
/* Lock the service list shared */
/* FIXME: Lock the service list shared */
lpService = ScmGetServiceEntryByResumeCount(dwLastResumeCount);
if (lpService == NULL)
@ -5232,7 +5282,7 @@ DWORD REnumServicesStatusExW(
}
Done:;
/* Unlock the service list */
/* FIXME: Unlock the service list */
DPRINT("REnumServicesStatusExW() done (Error %lu)\n", dwError);