为 LOCAL_SYSTEM 帐户 windows c++ 创建安全描述符

问题描述

我正在尝试在 cpp 中为 LOCAL_SYstem 创建安全描述符。参考代码 Creating a Security Descriptor

示例告诉如何为每个人和管理员创建但我正在尝试创建 LOCAL_SYstem 但失败了。

SID_IDENTIFIER_AUTHORITY SIDLocalSystem = Security_LOCAL_SID_AUTHORITY;
Security_ATTRIBUTES sa;
HKEY hkSub = NULL;
HKEY hRegKey = NULL;
bool bRet = false;

// Create a well-kNown SID for the Everyone group.
if (!AllocateAndInitializeSid(&SIDAuthWorld,1,/*Security_WORLD_RID*/Security_LOCAL_SYstem_RID,&SIDLocalSystem))
{
    WcaLog(LOGMSG_STANDARD,"AllocateAndInitializeSid Error %u",GetLastError());
    goto exit;
}

// Initialize an EXPLICIT_ACCESS structure for an ACE.
// The ACE will allow Everyone read access to the key.
ZeroMemory(&ea,2 * sizeof(EXPLICIT_ACCESS));
ea[0].grfAccesspermissions = KEY_ALL_ACCESS;
ea[0].grfAccessMode = SET_ACCESS;
ea[0].grfInheritance = NO_INHERITANCE;
ea[0].Trustee.TrusteeForm = TRUSTEE_IS_SID;
ea[0].Trustee.TrusteeType = TRUSTEE_IS_USER;
ea[0].Trustee.ptstrName = (LPTSTR)SIDLocalSystem;

不知何故导致设置未知 SID

解决方法

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c++local-system-account windows windows