PowerUsers 权限下 读注册表不行，写可以 困惑！！！

[wanghongit]

UINT CRegistry::GetProfileInt(LPCTSTR lpszSection, LPCTSTR lpszEntry, int nDefault)
{
ASSERT(lpszSection != NULL);
ASSERT(lpszEntry != NULL);

HKEY hSecKey = GetSectionKey(lpszSection);
if (hSecKey == NULL)
return nDefault;
DWORD dwValue;
DWORD dwType;
DWORD dwCount = sizeof(DWORD);
LONG lResult = RegQueryValueEx(hSecKey, (LPTSTR)lpszEntry, NULL, &dwType,
(LPBYTE)&dwValue, &dwCount);
RegCloseKey(hSecKey);
if (lResult == ERROR_SUCCESS)
{
ASSERT(dwType == REG_DWORD);
ASSERT(dwCount == sizeof(dwValue));
return (UINT)dwValue;
}
return nDefault;
}

CRegistry reg;
sTemp = _T("HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}\\") + sDevice + _T("\\Connection\\");
lpszSubKey = (LPCTSTR)sTemp.GetBuffer(20000);
sTemp.ReleaseBuffer();
nValue = reg.GetProfileInt(lpszSubKey, _T("MediaSubType"), 0);


注册表的位置是SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1 -08002BE10318}\{5C55B069-AA1D-4EC6-9921-2B670E4486DA}\Connection\
administrator 权限可以读到，但是powerusers就不行
但是可以有修改权限
BOOL CRegistry::WriteProfileBinary(LPCTSTR lpszSection, LPCTSTR lpszEntry, LPBYTE pData, UINT nBytes)
{
ASSERT(lpszSection != NULL);

LONG lResult;
HKEY hSecKey = GetSectionKey(lpszSection);
if (hSecKey == NULL)
return FALSE;
lResult = RegSetValueEx(hSecKey, lpszEntry, NULL, REG_BINARY,
pData, nBytes);
RegCloseKey(hSecKey);
return lResult == ERROR_SUCCESS;
}
注册表的位置是 SOFTWARE\Microsoft\EAPOL\Parameters\Interfaces\{5C55B069-AA1D-4EC6-9921-2B670E4486DA}
reg.WriteProfileBinary(lpszSubKey, _T("1"), (LPBYTE)cInfVal, nDataSize)

这个可以修改，不知道为什么

[凤矶]

SE_BACKUP_NAME
SE_RESTORE_NAME

LZ这两个权限取得没有

[wanghongit]

怎么取？

[凤矶]

LookupPrivilegeValue

[凤矶]

http://topic.csdn.net/t/20050614/22/4082649.html

[Pipi0714]

查看你的用户的注册表权限，加上能度即可

[wanghongit]

加上这个
HRESULT CMyDlg::SetPrivilege(LPCTSTR privilege, BOOL bEnable)
{
TOKEN_PRIVILEGES tpPrevious;
TOKEN_PRIVILEGES tp;
DWORD cbPrevious = sizeof(TOKEN_PRIVILEGES);
LUID luid;
HANDLE hTokenUsed;

if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hTokenUsed))
goto _Error;

if (!LookupPrivilegeValue(NULL, privilege, &luid ))
goto _Error;

tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luid;
tp.Privileges[0].Attributes = 0;

if (!AdjustTokenPrivileges(hTokenUsed, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), &tpPrevious, &cbPrevious))
goto _Error_CloseHandle;

tpPrevious.PrivilegeCount = 1;
tpPrevious.Privileges[0].Luid = luid;

if (bEnable)
tpPrevious.Privileges[0].Attributes |= SE_PRIVILEGE_ENABLED;
else
tpPrevious.Privileges[0].Attributes &= ~SE_PRIVILEGE_ENABLED;

if (!AdjustTokenPrivileges(hTokenUsed, FALSE, &tpPrevious, cbPrevious, NULL, NULL))
goto _Error_CloseHandle;

CloseHandle(hTokenUsed);

return S_OK;

HRESULT hr;

_Error:
hr = GetLastError();
return hr;

_Error_CloseHandle:
hr = GetLastError();
CloseHandle(hTokenUsed);
return hr;
}
在RegOpenKeyEx(m_hKey, lpszSection, 0, KEY_WRITE|KEY_READ, &hSectionKey) == ERROR_SUCCESS之前调用
SetPrivilege(SE_BACKUP_NAME,TRUE);
SetPrivilege(SE_RESTORE_NAME,TRUE);
还是不好用，不知道什么原因

[wanghongit]

结帖，RegOpenKeyEx 时用 KEY_QUERY_VALUE 打开就行了
但是我不明白为什么这个键值HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}\{5C55B069-AA1D-4EC6-9921-2B670E4486DA}\Connection\
用写权限打不开，别的却可以。

[ouyh12345]

GetSectionKey是怎样写的，里面都有什么权限？

[i_love_pc]

能写不能读？？

[star119119]

LONG RegOpenKey(
HKEY hKey,
LPCTSTR lpSubKey,
PHKEY phkResult
);

[wanghongit]

HKEY CRegistry::GetSectionKey(LPCTSTR lpszSection, BOOL bCreate)
{
ASSERT(lpszSection != NULL);
HKEY hSectionKey = NULL;

if (m_strRootKey.CompareNoCase(_T("HKEY_CLASSES_ROOT")) == 0)
{
m_hKey = HKEY_CLASSES_ROOT;
}
else if (m_strRootKey.CompareNoCase(_T("HKEY_CURRENT_USER")) == 0)
{
m_hKey = HKEY_CURRENT_USER;
}
else if (m_strRootKey.CompareNoCase(_T("HKEY_LOCAL_MACHINE")) == 0)
{
m_hKey = HKEY_LOCAL_MACHINE;
}
else if (m_strRootKey.CompareNoCase(_T("HKEY_USERS")) == 0)
{
m_hKey = HKEY_USERS;
}
else if (m_strRootKey.CompareNoCase(_T("HKEY_CURRENT_CONFIG")) == 0)
{
m_hKey = HKEY_CURRENT_CONFIG;
}
else
{
m_hKey = HKEY_LOCAL_MACHINE;
}

if (!RegOpenKeyEx(m_hKey, lpszSection, 0, KEY_WRITE|KEY_READ, &hSectionKey) == ERROR_SUCCESS)
{
m_strLogInfo.Format(_T("%s"), lpszSection);

CCommandModule::WriteLineStringToLog(m_strLogInfo);
return NULL;
}

m_strLogInfo.Format(_T("%s"), lpszSection);

CCommandModule::WriteLineStringToLog(m_strLogInfo);
return hSectionKey;
}

[wanghongit]

能写不能读，太诡异了，高手帮我看看