mirror of
https://github.com/reactos/reactos.git
synced 2024-11-19 05:22:59 +00:00
417 lines
12 KiB
C
417 lines
12 KiB
C
/*
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* PROJECT: ReactOS Service Control Manager
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: base/system/services/controlset.c
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* PURPOSE: Control Set Management
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* COPYRIGHT: Copyright 2012 Eric Kohl
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*
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*/
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/* INCLUDES *****************************************************************/
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#include "services.h"
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#define NDEBUG
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#include <debug.h>
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LSTATUS WINAPI RegCopyTreeW(_In_ HKEY, _In_opt_ LPCWSTR, _In_ HKEY);
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LSTATUS WINAPI RegDeleteTreeW(_In_ HKEY, _In_opt_ LPCWSTR);
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/* GLOBALS *******************************************************************/
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static BOOL bBootAccepted = FALSE;
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/* FUNCTIONS *****************************************************************/
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static
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DWORD
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ScmGetControlSetValues(
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PDWORD pdwCurrentControlSet,
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PDWORD pdwDefaultControlSet,
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PDWORD pdwFailedControlSet,
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PDWORD pdwLastKnownGoodControlSet)
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{
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HKEY hSelectKey;
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DWORD dwType;
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DWORD dwSize;
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DWORD dwError;
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DPRINT("ScmGetControlSetValues() called\n");
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dwError = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
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L"System\\Select",
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0,
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KEY_READ,
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&hSelectKey);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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dwSize = sizeof(DWORD);
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dwError = RegQueryValueExW(hSelectKey,
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L"Current",
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0,
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&dwType,
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(LPBYTE)pdwCurrentControlSet,
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&dwSize);
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if (dwError != ERROR_SUCCESS)
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{
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*pdwCurrentControlSet = 0;
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}
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dwSize = sizeof(DWORD);
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dwError = RegQueryValueExW(hSelectKey,
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L"Default",
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0,
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&dwType,
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(LPBYTE)pdwDefaultControlSet,
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&dwSize);
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if (dwError != ERROR_SUCCESS)
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{
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*pdwDefaultControlSet = 0;
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}
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dwSize = sizeof(DWORD);
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dwError = RegQueryValueExW(hSelectKey,
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L"Failed",
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0,
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&dwType,
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(LPBYTE)pdwFailedControlSet,
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&dwSize);
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if (dwError != ERROR_SUCCESS)
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{
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*pdwFailedControlSet = 0;
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}
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dwSize = sizeof(DWORD);
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dwError = RegQueryValueExW(hSelectKey,
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L"LastKnownGood",
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0,
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&dwType,
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(LPBYTE)pdwLastKnownGoodControlSet,
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&dwSize);
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if (dwError != ERROR_SUCCESS)
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{
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*pdwLastKnownGoodControlSet = 0;
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}
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RegCloseKey(hSelectKey);
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DPRINT("ControlSets:\n");
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DPRINT("Current: %lu\n", *pdwCurrentControlSet);
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DPRINT("Default: %lu\n", *pdwDefaultControlSet);
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DPRINT("Failed: %lu\n", *pdwFailedControlSet);
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DPRINT("LastKnownGood: %lu\n", *pdwLastKnownGoodControlSet);
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return dwError;
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}
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static
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DWORD
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ScmSetLastKnownGoodControlSet(
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DWORD dwControlSet)
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{
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HKEY hSelectKey;
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DWORD dwError;
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dwError = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
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L"System\\Select",
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0,
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KEY_WRITE,
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&hSelectKey);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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dwError = RegSetValueExW(hSelectKey,
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L"LastKnownGood",
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0,
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REG_DWORD,
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(LPBYTE)&dwControlSet,
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sizeof(dwControlSet));
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RegFlushKey(hSelectKey);
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RegCloseKey(hSelectKey);
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return dwError;
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}
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static
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DWORD
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ScmGetSetupInProgress(VOID)
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{
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DWORD dwError;
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HKEY hKey;
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DWORD dwType;
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DWORD dwSize;
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DWORD dwSetupInProgress = (DWORD)-1;
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DPRINT("ScmGetSetupInProgress()\n");
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/* Open key */
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dwError = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
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L"SYSTEM\\Setup",
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0,
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KEY_QUERY_VALUE,
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&hKey);
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if (dwError == ERROR_SUCCESS)
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{
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/* Read key */
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dwSize = sizeof(DWORD);
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RegQueryValueExW(hKey,
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L"SystemSetupInProgress",
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NULL,
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&dwType,
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(LPBYTE)&dwSetupInProgress,
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&dwSize);
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RegCloseKey(hKey);
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}
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DPRINT("SetupInProgress: %lu\n", dwSetupInProgress);
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return dwSetupInProgress;
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}
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static
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DWORD
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ScmCopyControlSet(
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DWORD dwSourceControlSet,
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DWORD dwDestinationControlSet)
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{
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WCHAR szSourceControlSetName[32];
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WCHAR szDestinationControlSetName[32];
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HKEY hSourceControlSetKey = NULL;
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HKEY hDestinationControlSetKey = NULL;
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DWORD dwDisposition;
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DWORD dwError;
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/* Create the source control set name */
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swprintf(szSourceControlSetName, L"SYSTEM\\ControlSet%03lu", dwSourceControlSet);
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DPRINT("Source control set: %S\n", szSourceControlSetName);
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/* Create the destination control set name */
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swprintf(szDestinationControlSetName, L"SYSTEM\\ControlSet%03lu", dwDestinationControlSet);
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DPRINT("Destination control set: %S\n", szDestinationControlSetName);
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/* Open the source control set key */
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dwError = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
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szSourceControlSetName,
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0,
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KEY_READ,
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&hSourceControlSetKey);
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if (dwError != ERROR_SUCCESS)
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goto done;
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/* Create the destination control set key */
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dwError = RegCreateKeyExW(HKEY_LOCAL_MACHINE,
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szDestinationControlSetName,
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0,
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NULL,
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REG_OPTION_NON_VOLATILE,
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KEY_WRITE,
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NULL,
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&hDestinationControlSetKey,
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&dwDisposition);
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if (dwError != ERROR_SUCCESS)
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goto done;
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/* Copy the source control set to the destination control set */
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dwError = RegCopyTreeW(hSourceControlSetKey,
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NULL,
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hDestinationControlSetKey);
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if (dwError != ERROR_SUCCESS)
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goto done;
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RegFlushKey(hDestinationControlSetKey);
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done:
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if (hDestinationControlSetKey != NULL)
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RegCloseKey(hDestinationControlSetKey);
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if (hSourceControlSetKey != NULL)
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RegCloseKey(hSourceControlSetKey);
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return dwError;
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}
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static
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DWORD
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ScmDeleteControlSet(
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DWORD dwControlSet)
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{
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WCHAR szControlSetName[32];
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HKEY hControlSetKey = NULL;
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DWORD dwError;
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DPRINT("ScmDeleteControSet(%lu)\n", dwControlSet);
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/* Create the control set name */
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swprintf(szControlSetName, L"SYSTEM\\ControlSet%03lu", dwControlSet);
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DPRINT("Control set: %S\n", szControlSetName);
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/* Open the system key */
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dwError = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
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szControlSetName,
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0,
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DELETE | KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE | KEY_SET_VALUE,
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&hControlSetKey);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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/* Delete the control set */
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dwError = RegDeleteTreeW(hControlSetKey,
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NULL);
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/* Open the system key */
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RegCloseKey(hControlSetKey);
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return dwError;
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}
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DWORD
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ScmCreateLastKnownGoodControlSet(VOID)
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{
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DWORD dwCurrentControlSet, dwDefaultControlSet;
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DWORD dwFailedControlSet, dwLastKnownGoodControlSet;
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DWORD dwNewControlSet;
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DWORD dwError;
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/* Get the control set values */
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dwError = ScmGetControlSetValues(&dwCurrentControlSet,
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&dwDefaultControlSet,
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&dwFailedControlSet,
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&dwLastKnownGoodControlSet);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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/* First boot after setup? */
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if ((ScmGetSetupInProgress() == 0) &&
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(dwCurrentControlSet == dwLastKnownGoodControlSet))
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{
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DPRINT("First boot after setup\n");
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/* Search for a new control set number */
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for (dwNewControlSet = 1; dwNewControlSet < 1000; dwNewControlSet++)
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{
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if ((dwNewControlSet != dwCurrentControlSet) &&
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(dwNewControlSet != dwDefaultControlSet) &&
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(dwNewControlSet != dwFailedControlSet) &&
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(dwNewControlSet != dwLastKnownGoodControlSet))
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break;
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}
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/* Fail if we did not find an unused control set!*/
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if (dwNewControlSet >= 1000)
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{
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DPRINT1("Too many control sets\n");
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return ERROR_NO_MORE_ITEMS;
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}
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/* Copy the current control set */
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dwError = ScmCopyControlSet(dwCurrentControlSet,
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dwNewControlSet);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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/* Set the new 'LastKnownGood' control set */
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dwError = ScmSetLastKnownGoodControlSet(dwNewControlSet);
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if (dwError == ERROR_SUCCESS)
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{
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/*
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* Accept the boot here in order to prevent the creation of
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* another control set when a user is going to get logged on
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*/
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bBootAccepted = TRUE;
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}
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}
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return dwError;
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}
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DWORD
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ScmAcceptBoot(VOID)
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{
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DWORD dwCurrentControlSet, dwDefaultControlSet;
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DWORD dwFailedControlSet, dwLastKnownGoodControlSet;
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DWORD dwNewControlSet;
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DWORD dwError;
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DPRINT("ScmAcceptBoot()\n");
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if (bBootAccepted)
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{
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DPRINT1("Boot has already been accepted\n");
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return ERROR_BOOT_ALREADY_ACCEPTED;
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}
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/* Get the control set values */
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dwError = ScmGetControlSetValues(&dwCurrentControlSet,
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&dwDefaultControlSet,
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&dwFailedControlSet,
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&dwLastKnownGoodControlSet);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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/* Search for a new control set number */
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for (dwNewControlSet = 1; dwNewControlSet < 1000; dwNewControlSet++)
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{
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if ((dwNewControlSet != dwCurrentControlSet) &&
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(dwNewControlSet != dwDefaultControlSet) &&
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(dwNewControlSet != dwFailedControlSet) &&
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(dwNewControlSet != dwLastKnownGoodControlSet))
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break;
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}
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/* Fail if we did not find an unused control set!*/
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if (dwNewControlSet >= 1000)
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{
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DPRINT1("Too many control sets\n");
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return ERROR_NO_MORE_ITEMS;
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}
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/* Copy the current control set */
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dwError = ScmCopyControlSet(dwCurrentControlSet,
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dwNewControlSet);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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/* Delete the current last known good contol set, if it is not used anywhere else */
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if ((dwLastKnownGoodControlSet != dwCurrentControlSet) &&
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(dwLastKnownGoodControlSet != dwDefaultControlSet) &&
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(dwLastKnownGoodControlSet != dwFailedControlSet))
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{
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ScmDeleteControlSet(dwLastKnownGoodControlSet);
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}
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/* Set the new 'LastKnownGood' control set */
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dwError = ScmSetLastKnownGoodControlSet(dwNewControlSet);
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if (dwError != ERROR_SUCCESS)
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return dwError;
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bBootAccepted = TRUE;
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return ERROR_SUCCESS;
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}
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DWORD
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ScmRunLastKnownGood(VOID)
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{
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DPRINT("ScmRunLastKnownGood()\n");
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if (bBootAccepted)
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{
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DPRINT1("Boot has already been accepted\n");
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return ERROR_BOOT_ALREADY_ACCEPTED;
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}
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/* FIXME */
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return ERROR_SUCCESS;
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}
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/* EOF */
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