Question

我正在使用下面的代码来检索流程所有者的SID，这里一切都很好，但是我该如何可能至少检索到流程所有者是成员的任何（至多每个）成员资格SID？

PSID g_pSID;
BOOL GetCurrentProcessSID()
{
    DWORD dwSize = 0, dwError, dwResult = 0;
    HANDLE hToken;

    if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
    {
        printf("OpenProcessToken Error %u\n", GetLastError());
        return FALSE;
    }

    // Call GetTokenInformation to get the buffer size.
    TOKEN_USER tU;
    if (!GetTokenInformation(hToken, TokenUser, &tU, 0, &dwSize))
    {
        dwError = GetLastError();
        if (dwError != ERROR_INSUFFICIENT_BUFFER)
        {
            std::cout << "GetTokenInformation failed, error " << dwError;
            CloseHandle(hToken);
            return 0;
        }
    }

    PTOKEN_OWNER to = (PTOKEN_OWNER)LocalAlloc(LPTR, dwSize);
    if (!to)
    {
        dwError = GetLastError();
        std::cout << "LocalAlloc failed, error " << dwError;
        CloseHandle(hToken);
        return 0;
    }

    if (!GetTokenInformation(hToken, TokenOwner, to, dwSize, &dwSize))
    {
        dwError = GetLastError();
        std::cout << "GetTokenInformation failed, error " << dwError;
        LocalFree(to);
        CloseHandle(hToken);
        return 0;
    }

    g_pSID = to->Owner;
    return TRUE;
}

此外，除了使用全局变量外，我在片段中是否有任何错误？

Answer 1

您首先使用TokenUser来获取TokenInformation的缓冲区大小，然后在第二个调用方中使用TokenOwner。不确定您真正想要哪个。 explanation不错。

TokenOwner是令牌的一部分，用于确定默认值由令牌中运行的进程或线程创建的对象的所有者安全上下文。 TokenUser是令牌的用户代表。

此外，您应该在函数返回之前调用LocalFree(to)。

如果要获取与令牌关联的组帐户。您可以在调用TokenGroups时使用GetTokenInformation来获得它。

#define MAX_NAME 256
BOOL RetriveGroupSid(VOID)
{
    DWORD i, dwSize = 0, dwResult = 0;
    HANDLE hToken;
    PTOKEN_GROUPS pGroupInfo;
    SID_NAME_USE SidType;
    char lpName[MAX_NAME];
    char lpDomain[MAX_NAME];
    SID_IDENTIFIER_AUTHORITY SIDAuth = SECURITY_NT_AUTHORITY;

    // Open a handle to the access token for the calling process.

    if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
    {
        printf("OpenProcessToken Error %u\n", GetLastError());
        return FALSE;
    }

    // Call GetTokenInformation to get the buffer size.

    if (!GetTokenInformation(hToken, TokenGroups, NULL, dwSize, &dwSize))
    {
        dwResult = GetLastError();
        if (dwResult != ERROR_INSUFFICIENT_BUFFER) {
            printf("GetTokenInformation Error %u\n", dwResult);
            return FALSE;
        }
    }

    // Allocate the buffer.

    pGroupInfo = (PTOKEN_GROUPS)GlobalAlloc(GPTR, dwSize);

    // Call GetTokenInformation again to get the group information.

    if (!GetTokenInformation(hToken, TokenGroups, pGroupInfo,
        dwSize, &dwSize))
    {
        printf("GetTokenInformation Error %u\n", GetLastError());
        return FALSE;
    }

    for (i = 0; i < pGroupInfo->GroupCount; i++)
    {
        dwSize = MAX_NAME;
        LPSTR sid;
        if (!ConvertSidToStringSid(pGroupInfo->Groups[i].Sid, &sid))
        {
            printf("ConvertSidToStringSid Error %u\n", GetLastError());
            return FALSE;
        }
        if (!LookupAccountSid(NULL, pGroupInfo->Groups[i].Sid,
            lpName, &dwSize, lpDomain,
            &dwSize, &SidType))
        {
            dwResult = GetLastError();
            if (dwResult == ERROR_NONE_MAPPED)
                strcpy_s(lpName, dwSize, "NONE_MAPPED");
            else
            {
                printf("LookupAccountSid Error %u\n", GetLastError());
                LocalFree(sid);
                return FALSE;
            }
        }
        printf("%s : %s\\%s \n", sid, lpDomain, lpName);


        // Find out whether the SID is enabled in the token.
        if (pGroupInfo->Groups[i].Attributes & SE_GROUP_ENABLED)
            printf("The group SID is enabled.\n");
        else if (pGroupInfo->Groups[i].Attributes &
            SE_GROUP_USE_FOR_DENY_ONLY)
            printf("The group SID is a deny-only SID.\n");
        else
            printf("The group SID is not enabled.\n");
        LocalFree(sid);

    }

    if (pGroupInfo)
        GlobalFree(pGroupInfo);
    return TRUE;
}

有关另一种方法，另请参见retrieve all groups a user belongs to… in C++

接收用户所属的所有成员资格组的SID？

1 个答案: