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最新推荐文章于 2024-06-13 14:15:10 发布

happmaoo

最新推荐文章于 2024-06-13 14:15:10 发布

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文章标签： ASP VB XP VC++ Security

博主用VC++6.0创建COM库，其中“Logon”接口被VB调用能成功返回“NO_ERROR”，但被ASP调用时返回错误。搜索错误代码无果，推测问题源于ASP页面运行的安全上下文，在XP和2003系统下，网络访问受限可能是原因。

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I have done an COM library that using VC++6.0, there is "Logon" interface was contained and detail codes below:


NETRESOURCE nr;
::memset(&nr, NULL, sizeof(NETRESOURCE));

nr.dwType = RESOURCETYPE_ANY;
nr.lpRemoteName = str.LockBuffer();
nr.lpProvider = _T("Microsoft Windows Network");
nr.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER;

DWORD dwResult = ::WNetAddConnection2(&nr, _T("password"), _T("username"), CONNECT_UPDATE_PROFILE);

the "Logon" interface is successful to return " NO_ERROR" which are invoked by VB. but while the "Logon" interface is invoked by ASP(Active Service Page), however results is to return a error that's:


ERROR_NO_SUCH_LOGON_SESSION

to search into "Winerror.h" that have some description about the error:


// A specified logon session does not exist. It may already have
// been terminated.

via Google to search about the "ERROR_NO_SUCH_LOGON_SESSION", Unfortunate nothing can hele me.

This is a bit of a guess, but I would imagine that the problem stems from the security context that the ASP page is running under. Under XP and 2003, network access for the web server is severely limited. The CONNECT_UPDATE_PROFILE flag might also be causing the problem - I'm not sure that the relevant security context has a "profile" to be updated.