Microsoft ???????? ???????? ?? ?????????? ????????????? ???????? ???? ?? ??? ???? ????

???? ?????? ???? ??????
???? ID: 180548 - ?? ???????? ?? ?????? ??? ?? ?? ???? ???? ???? ??.
??? ?? ??????? ???? | ??? ?? ??????? ????

?? ????? ??

??????

???-???, ?? ???? ????????? ?? ???? ?????????? ?? ?????????? ??? ?? ??????? (hereafter ???????? ???? ?? ??? ??????????? ?? ??? ???) ?? ???? ???? ?? ??? ?? ???? ???? ?? ?? ???? ??? ??? ??? ??? ?????, ??? ?? ????????? ???? ???????? ?????? ?? ???? ???

?? ???? ??? ?????????? ?? ??????????? ?? ???????? ???? ?? ??? ????? ?????????? ?? ?????? ???? ?? ??? ??????? ????? ?? ????? ???? ???

???:??? ??????????-??? ????????? ?? collecting ?????????? ????????????? annoying ???????????? ?? ??? ?? ???? ?? ?? ?????????? ?????????? ??????? ??? ?? ??????? ??????? ????? ?????? ?? ???? ???? ?????? ????? ?? ???????? (?? ???????? ?? ?????????? ????? ???? ???? ?????? ???? ???? ?? ??? ???? ????????????? ?? ??? CTRL + ALT + DEL ??????? ??), ?? ???? ?????? ?? ??? Microsoft BackOffice ???? ?????????? ?? ??? ????? ??? ??? ?? ????????? ???? ?? ?????? ???? ??????????? ?? ??????? ???? ?? ??? ?? ?? ?? ?? ??????/????? ??????? ?? ???? ???? ???? ???? ??????? ???? ?? ???? ?????? ??? Consult the security documentation in the Platform SDK for more information on impersonation and programming secured servers.

???? ???????

TheLogonUserAPI has been available and documented since Windows NT 3.51, and is commonly used to verify user credentials. This API is available on Windows NT, Windows 2000, and Windows XP. Unfortunately, there are some restrictions on using LogonUser that are not always convenient to satisfy.

???? ?? ?? ???????? ?? biggest ?? ?? Windows NT ?? Windows 2000, ?? ??? LogonUser ?? ????????? ???? ?????? SE_TCB_NAME ??????????? (?????????? ??????? ???, ?? ?? "???????? ?????? ?? ??? ?? ??? ??? ??? ???? ???" ???? ??)? SE_TCB_NAME ??????????? ???? ????? ?? ?? ????? ???? ???? ?? ???? ?? arbitrary ?? ???? ?? ?????????? ?? ??? ???? ???? ???? ????????????? ???????? ???? ?? ???????? ?? ?? ???? ????????? ?? ??? ???? ???? ???????? ???? ??? ???? ?? ??? LogonUser ?? ?? ???? ?? ?? ??????? ?????? ???? ??? ?? ??? ?? ??????? ??????? ?????? ???? ???? ?? ?? SE_TCB_NAME ?????? ??? ???

???:LogonUser Win32 API TCB ??????????? ?? ???????? ???? ?? Microsoft Windows Server 2003, ??? ??, ????? ???? ?? ??????, ?? ??? ?? ?? ??? ?? ??????? approach.

Windows XP ???, ?? ?? ?? ???? ?? ?? ?? ????????? ?? SE_TCB_NAME ??????????? LogonUser ??? ???? ?? ??? ????????? ?????, Windows XP ?? ??? ?????????? ????????????? ???????? ???? ?? ??? simplest ???? ?? LogonUser API ??? ???? ?? ????

?? ???? ?????? LogonUser ?? API ?? ???? ???? ?? Windows 95, Windows 98 ?? Windows Millennium ??????? ???

???? ?????? ?? ??? ??? ?? ??????? ?????? ??????? ?? ????? ?? ???? ??? ??????? (SSPI) ?? ??? ??????? ???? ????? ???? ?? ??? ?????????? ??????????? ?????? ?? ??? ??????? ?? ??? ?? ???? ?? ??? ???? ??? ????? ??????????? ?? ????????, ??? ?? Windows ?? ??? ????????? ?? ????? ???? ?? ??? ????????????? ???????? ???? ?? ??? SSPI ?????? ?? ????? ???? ?? ????? ?????? ?? ?? analogous LOGON32_LOGON_NETWORK ????? ?????? ?? ??? LogonUser API ??? ???? ?? ??? ??? ?? ???? ?? ?????? ?? ??? ?? ???? ?? ??? biggest downside ?? ?? ?? ?? ???? ????? ?????? ???????? ?? ???? ??????? ?????? ????? impersonating ?? ??? ???????? ??? ???? ????????? ?? ??? LogonUser ????????, ?? ???? ?? ??? ?????? Windows NT ?? inability ???? ?? ??? LOGON32_LOGON_INTERACTIVE ????? ?????? ?? ??? SSPI ?????/??????? ?????? ???? ?? ?????? ?? viable ???????

???? ??? ?? ????? ??? ?? ???? ?? ??? SSPI ?????? ?? ??? ???? ?? ??? ???? ?????? ?? ??????? credential.

Windows 95, Windows 98, ?? Windows Millennium ??????? ?? ?? ???? ?? ????? ????, ?? ??? ?? ???? ???????? ????, ???????, ????? ???????? ?????, ?? ???? ??? ??????????-???? ????? ???????? ?? ??? ?? NTLM ??????? ?????? ?? ????? ???? ?? ????

Windows XP ?? ForceGuest ????????? ??? ?? ??? ?? 1 ?? ??? ????? ????????? ????? ??? ???????? ??? ??:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
Windows XP ???????? ?? ?? ?? ????????? ?? ????? ??:
  • ??? ForceGuest ????? ???? ??? ?? (??? ???? ?? ??? 1), SSPI ????? ???? ?? ????? ?? ??? ?? ???? ?? ??? ????? ?? ?????? ??????
  • ????? ???? ????? ???? ??? ??, ??? ??? SSPI ????? ?? ??? ????? ?? ??? ??? ??? ???????? ???????????? ??????????????
  • ????? ???? ????? ???? ??? ??, ??? ??? SSPI ????? ????? ??????????? ?? ??? ?? ???? ?????
  • ??? ForceGuest ????? ?? (??? ???? ?? ??? 0), SSPI ?????? ?? ??? ?? ????????? ?????????? ?? ??? ????
??? ??, ??? ????? ???? ?? ????? ???? ??? ??, SSPI ????? ?? ??? ????? ?? ??? ??? ????? ???? ??? ?? ?????????? ??????????? ?? ???? The C sample code in this article demonstrates how you can check the access token of the established security context. TheIsGuesthelper function in the sample code shows how you can verify that the logon occurred as the specified user or as Guest.

????? ???

///////////////////////////////////////////////////////////////////////////////
//
//  SSPI Authentication Sample
//
//  This program demonstrates how to use SSPI to authenticate user credentials.
//
//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
//  ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
//  TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//  PARTICULAR PURPOSE.
//
//  Copyright (C) 2007.  Microsoft Corporation.  All rights reserved.
///////////////////////////////////////////////////////////////////////////////

#define SECURITY_WIN32
#include <windows.h>
#include <tchar.h>
#include <stdio.h>
#include <conio.h>
#include <sspi.h>
#include <lm.h>
#include <lmcons.h>

// Older versions of WinError.h do not have SEC_I_COMPLETE_NEEDED #define.
// So, in such an SDK environment setup, we will include issperr.h which has the
// definition for SEC_I_COMPLETE_NEEDED. Include issperr.h only if
// SEC_I_COMPLETE_NEEDED is not defined.
#ifndef SEC_I_COMPLETE_NEEDED
#include <issperr.h>
#endif

typedef struct _AUTH_SEQ {
   BOOL fInitialized;
   BOOL fHaveCredHandle;
   BOOL fHaveCtxtHandle;
   CredHandle hcred;
   struct _SecHandle hctxt;
} AUTH_SEQ, *PAUTH_SEQ;


// Function pointers
ACCEPT_SECURITY_CONTEXT_FN       _AcceptSecurityContext     = NULL;
ACQUIRE_CREDENTIALS_HANDLE_FN    _AcquireCredentialsHandle  = NULL;
COMPLETE_AUTH_TOKEN_FN           _CompleteAuthToken         = NULL;
DELETE_SECURITY_CONTEXT_FN       _DeleteSecurityContext     = NULL;
FREE_CONTEXT_BUFFER_FN           _FreeContextBuffer         = NULL;
FREE_CREDENTIALS_HANDLE_FN       _FreeCredentialsHandle     = NULL;
INITIALIZE_SECURITY_CONTEXT_FN   _InitializeSecurityContext = NULL;
QUERY_SECURITY_PACKAGE_INFO_FN   _QuerySecurityPackageInfo  = NULL;
QUERY_SECURITY_CONTEXT_TOKEN_FN  _QuerySecurityContextToken = NULL;


#define CheckAndLocalFree(ptr) \
            if (ptr != NULL) \
            { \
               LocalFree(ptr); \
               ptr = NULL; \
            }

#pragma comment(lib, "netapi32.lib")

LPVOID RetrieveTokenInformationClass(
      HANDLE hToken,
      TOKEN_INFORMATION_CLASS InfoClass,
      LPDWORD lpdwSize)
{
   LPVOID pInfo = NULL;
   BOOL fSuccess = FALSE;

   __try
   {
      *lpdwSize = 0;

      //
      // Determine the size of the buffer needed
      //

      GetTokenInformation(
            hToken,
            InfoClass,
            NULL,
            *lpdwSize, lpdwSize);
      if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
      {
         _tprintf(_T("GetTokenInformation failed with %d\n"), GetLastError());
         __leave;
      }

      //
      // Allocate a buffer for getting token information
      //
      pInfo = LocalAlloc(LPTR, *lpdwSize);
      if (pInfo == NULL)
      {
         _tprintf(_T("LocalAlloc failed with %d\n"), GetLastError());
         __leave;
      }

      if (!GetTokenInformation(
            hToken,
            InfoClass,
            pInfo,
            *lpdwSize, lpdwSize))
      {
         _tprintf(_T("GetTokenInformation failed with %d\n"), GetLastError());
         __leave;
      }

      fSuccess = TRUE;
   }
   __finally
   {
      // Free pDomainAndUserName only if failed
      // Otherwise, the caller has to free after use
      if (fSuccess == FALSE)
      {
         CheckAndLocalFree(pInfo);
      }
   }

   return pInfo;
}

PSID GetUserSidFromWellKnownRid(DWORD Rid)
{
    PUSER_MODALS_INFO_2 umi2;
    NET_API_STATUS nas;

    UCHAR SubAuthorityCount;
    PSID pSid = NULL;

    BOOL bSuccess = FALSE; // assume failure

    nas = NetUserModalsGet(NULL, 2, (LPBYTE *)&umi2);

    if (nas != NERR_Success)
    {
        printf("NetUserModalsGet failed with error code : [%d]\n", nas);
        SetLastError(nas);
        return NULL;
    }

    SubAuthorityCount = *GetSidSubAuthorityCount
                       (umi2->usrmod2_domain_id);

    // 
    // Allocate storage for new Sid. account domain Sid + account Rid
    // 

    pSid = (PSID)LocalAlloc(LPTR,
          GetSidLengthRequired((UCHAR)(SubAuthorityCount + 1)));

    if (pSid != NULL)
    {
        if (InitializeSid(
              pSid,
              GetSidIdentifierAuthority(umi2->usrmod2_domain_id),
              (BYTE)(SubAuthorityCount+1)
              ))
        {
            DWORD SubAuthIndex = 0;

            // 
            // Copy existing subauthorities from account domain Sid into
            // new Sid
            // 

            for (; SubAuthIndex < SubAuthorityCount ; SubAuthIndex++)
            {
                *GetSidSubAuthority(pSid, SubAuthIndex) =
                *GetSidSubAuthority(umi2->usrmod2_domain_id,
                                  SubAuthIndex);
            }

            // 
            // Append Rid to new Sid
            // 

            *GetSidSubAuthority(pSid, SubAuthorityCount) = Rid;
        }
    }

    NetApiBufferFree(umi2);

    return pSid;
}

BOOL IsGuest(HANDLE hToken)
{
    BOOL fGuest = FALSE;
    PSID pGuestSid = NULL;
    PSID pUserSid = NULL;
    TOKEN_USER *pUserInfo = NULL;
    DWORD dwSize = 0;

    pGuestSid = GetUserSidFromWellKnownRid(DOMAIN_USER_RID_GUEST);
    if (pGuestSid == NULL)
        return fGuest;

    //
    // Get user information
    //

    pUserInfo = (TOKEN_USER *)RetrieveTokenInformationClass(hToken, TokenUser, &dwSize);
    if (pUserInfo != NULL)
    {
        if (EqualSid(pGuestSid, pUserInfo->User.Sid))
            fGuest = TRUE;
    }

    CheckAndLocalFree(pUserInfo);
    CheckAndLocalFree(pGuestSid);

    return fGuest;
}

///////////////////////////////////////////////////////////////////////////////


void UnloadSecurityDll(HMODULE hModule) {

   if (hModule)
      FreeLibrary(hModule);

   _AcceptSecurityContext      = NULL;
   _AcquireCredentialsHandle   = NULL;
   _CompleteAuthToken          = NULL;
   _DeleteSecurityContext      = NULL;
   _FreeContextBuffer          = NULL;
   _FreeCredentialsHandle      = NULL;
   _InitializeSecurityContext  = NULL;
   _QuerySecurityPackageInfo   = NULL;
   _QuerySecurityContextToken  = NULL;
}


///////////////////////////////////////////////////////////////////////////////


HMODULE LoadSecurityDll() {

   HMODULE hModule;
   BOOL    fAllFunctionsLoaded = FALSE;
   TCHAR   lpszDLL[MAX_PATH];
   OSVERSIONINFO VerInfo;

   //
   //  Find out which security DLL to use, depending on
   //  whether we are on Windows NT or Windows 95, Windows 2000, Windows XP, or Windows Server 2003
   //  We have to use security.dll on Windows NT 4.0.
   //  All other operating systems, we have to use Secur32.dll
   //
   VerInfo.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
   if (!GetVersionEx (&VerInfo))   // If this fails, something has gone wrong
   {
      return FALSE;
   }

   if (VerInfo.dwPlatformId == VER_PLATFORM_WIN32_NT &&
      VerInfo.dwMajorVersion == 4 &&
      VerInfo.dwMinorVersion == 0)
   {
      lstrcpy (lpszDLL, _T("security.dll"));
   }
   else
   {
      lstrcpy (lpszDLL, _T("secur32.dll"));
   }


   hModule = LoadLibrary(lpszDLL);
   if (!hModule)
      return NULL;

   __try {

      _AcceptSecurityContext = (ACCEPT_SECURITY_CONTEXT_FN)
            GetProcAddress(hModule, "AcceptSecurityContext");
      if (!_AcceptSecurityContext)
         __leave;

#ifdef UNICODE
      _AcquireCredentialsHandle = (ACQUIRE_CREDENTIALS_HANDLE_FN)
            GetProcAddress(hModule, "AcquireCredentialsHandleW");
#else
      _AcquireCredentialsHandle = (ACQUIRE_CREDENTIALS_HANDLE_FN)
            GetProcAddress(hModule, "AcquireCredentialsHandleA");
#endif
      if (!_AcquireCredentialsHandle)
         __leave;

      // CompleteAuthToken is not present on Windows 9x Secur32.dll
      // Do not check for the availablity of the function if it is NULL;
      _CompleteAuthToken = (COMPLETE_AUTH_TOKEN_FN)
            GetProcAddress(hModule, "CompleteAuthToken");

      _DeleteSecurityContext = (DELETE_SECURITY_CONTEXT_FN)
            GetProcAddress(hModule, "DeleteSecurityContext");
      if (!_DeleteSecurityContext)
         __leave;

      _FreeContextBuffer = (FREE_CONTEXT_BUFFER_FN)
            GetProcAddress(hModule, "FreeContextBuffer");
      if (!_FreeContextBuffer)
         __leave;

      _FreeCredentialsHandle = (FREE_CREDENTIALS_HANDLE_FN)
            GetProcAddress(hModule, "FreeCredentialsHandle");
      if (!_FreeCredentialsHandle)
         __leave;

#ifdef UNICODE
      _InitializeSecurityContext = (INITIALIZE_SECURITY_CONTEXT_FN)
            GetProcAddress(hModule, "InitializeSecurityContextW");
#else
      _InitializeSecurityContext = (INITIALIZE_SECURITY_CONTEXT_FN)
            GetProcAddress(hModule, "InitializeSecurityContextA");
#endif
      if (!_InitializeSecurityContext)
         __leave;

#ifdef UNICODE
      _QuerySecurityPackageInfo = (QUERY_SECURITY_PACKAGE_INFO_FN)
            GetProcAddress(hModule, "QuerySecurityPackageInfoW");
#else
      _QuerySecurityPackageInfo = (QUERY_SECURITY_PACKAGE_INFO_FN)
            GetProcAddress(hModule, "QuerySecurityPackageInfoA");
#endif
      if (!_QuerySecurityPackageInfo)
         __leave;


      _QuerySecurityContextToken = (QUERY_SECURITY_CONTEXT_TOKEN_FN)
            GetProcAddress(hModule, "QuerySecurityContextToken");
      if (!_QuerySecurityContextToken)
         __leave;

      fAllFunctionsLoaded = TRUE;

   } __finally {

      if (!fAllFunctionsLoaded) {
         UnloadSecurityDll(hModule);
         hModule = NULL;
      }

   }

   return hModule;
}


///////////////////////////////////////////////////////////////////////////////


BOOL GenClientContext(PAUTH_SEQ pAS, PSEC_WINNT_AUTH_IDENTITY pAuthIdentity,
      PVOID pIn, DWORD cbIn, PVOID pOut, PDWORD pcbOut, PBOOL pfDone) {

/*++

 Routine Description:

   Optionally takes an input buffer coming from the server and returns
   a buffer of information to send back to the server.  Also returns
   an indication of whether or not the context is complete.

 Return Value:

   Returns TRUE if successful; otherwise FALSE.

--*/

   SECURITY_STATUS ss;
   TimeStamp       tsExpiry;
   SecBufferDesc   sbdOut;
   SecBuffer       sbOut;
   SecBufferDesc   sbdIn;
   SecBuffer       sbIn;
   ULONG           fContextAttr;

   if (!pAS->fInitialized) {

      ss = _AcquireCredentialsHandle(NULL, _T("NTLM"),
            SECPKG_CRED_OUTBOUND, NULL, pAuthIdentity, NULL, NULL,
            &pAS->hcred, &tsExpiry);
      if (ss < 0) {
         fprintf(stderr, "AcquireCredentialsHandle failed with %08X\n", ss);
         return FALSE;
      }

      pAS->fHaveCredHandle = TRUE;
   }

   // Prepare output buffer
   sbdOut.ulVersion = 0;
   sbdOut.cBuffers = 1;
   sbdOut.pBuffers = &sbOut;

   sbOut.cbBuffer = *pcbOut;
   sbOut.BufferType = SECBUFFER_TOKEN;
   sbOut.pvBuffer = pOut;

   // Prepare input buffer
   if (pAS->fInitialized)  {
      sbdIn.ulVersion = 0;
      sbdIn.cBuffers = 1;
      sbdIn.pBuffers = &sbIn;

      sbIn.cbBuffer = cbIn;
      sbIn.BufferType = SECBUFFER_TOKEN;
      sbIn.pvBuffer = pIn;
   }

   ss = _InitializeSecurityContext(&pAS->hcred,
         pAS->fInitialized ? &pAS->hctxt : NULL, NULL, 0, 0,
         SECURITY_NATIVE_DREP, pAS->fInitialized ? &sbdIn : NULL,
         0, &pAS->hctxt, &sbdOut, &fContextAttr, &tsExpiry);
   if (ss < 0)  {
      // <winerror.h>
      fprintf(stderr, "InitializeSecurityContext failed with %08X\n", ss);
      return FALSE;
   }

   pAS->fHaveCtxtHandle = TRUE;

   // If necessary, complete token
   if (ss == SEC_I_COMPLETE_NEEDED || ss == SEC_I_COMPLETE_AND_CONTINUE) {

      if (_CompleteAuthToken) {
         ss = _CompleteAuthToken(&pAS->hctxt, &sbdOut);
         if (ss < 0)  {
            fprintf(stderr, "CompleteAuthToken failed with %08X\n", ss);
            return FALSE;
         }
      }
      else {
         fprintf (stderr, "CompleteAuthToken not supported.\n");
         return FALSE;
      }
   }

   *pcbOut = sbOut.cbBuffer;

   if (!pAS->fInitialized)
      pAS->fInitialized = TRUE;

   *pfDone = !(ss == SEC_I_CONTINUE_NEEDED
         || ss == SEC_I_COMPLETE_AND_CONTINUE );

   return TRUE;
}


///////////////////////////////////////////////////////////////////////////////


BOOL GenServerContext(PAUTH_SEQ pAS, PVOID pIn, DWORD cbIn, PVOID pOut,
      PDWORD pcbOut, PBOOL pfDone) {

/*++

 Routine Description:

    Takes an input buffer coming from the client and returns a buffer
    to be sent to the client.  Also returns an indication of whether or
    not the context is complete.

 Return Value:

    Returns TRUE if successful; otherwise FALSE.

--*/

   SECURITY_STATUS ss;
   TimeStamp       tsExpiry;
   SecBufferDesc   sbdOut;
   SecBuffer       sbOut;
   SecBufferDesc   sbdIn;
   SecBuffer       sbIn;
   ULONG           fContextAttr;

   if (!pAS->fInitialized)  {

      ss = _AcquireCredentialsHandle(NULL, _T("NTLM"),
            SECPKG_CRED_INBOUND, NULL, NULL, NULL, NULL, &pAS->hcred,
            &tsExpiry);
      if (ss < 0) {
         fprintf(stderr, "AcquireCredentialsHandle failed with %08X\n", ss);
         return FALSE;
      }

      pAS->fHaveCredHandle = TRUE;
   }

   // Prepare output buffer
   sbdOut.ulVersion = 0;
   sbdOut.cBuffers = 1;
   sbdOut.pBuffers = &sbOut;

   sbOut.cbBuffer = *pcbOut;
   sbOut.BufferType = SECBUFFER_TOKEN;
   sbOut.pvBuffer = pOut;

   // Prepare input buffer
   sbdIn.ulVersion = 0;
   sbdIn.cBuffers = 1;
   sbdIn.pBuffers = &sbIn;

   sbIn.cbBuffer = cbIn;
   sbIn.BufferType = SECBUFFER_TOKEN;
   sbIn.pvBuffer = pIn;

   ss = _AcceptSecurityContext(&pAS->hcred,
         pAS->fInitialized ? &pAS->hctxt : NULL, &sbdIn, 0,
         SECURITY_NATIVE_DREP, &pAS->hctxt, &sbdOut, &fContextAttr,
         &tsExpiry);
   if (ss < 0)  {
      fprintf(stderr, "AcceptSecurityContext failed with %08X\n", ss);
      return FALSE;
   }

   pAS->fHaveCtxtHandle = TRUE;

   // If necessary, complete token
   if (ss == SEC_I_COMPLETE_NEEDED || ss == SEC_I_COMPLETE_AND_CONTINUE) {

      if (_CompleteAuthToken) {
         ss = _CompleteAuthToken(&pAS->hctxt, &sbdOut);
         if (ss < 0)  {
            fprintf(stderr, "CompleteAuthToken failed with %08X\n", ss);
            return FALSE;
         }
      }
      else {
         fprintf (stderr, "CompleteAuthToken not supported.\n");
         return FALSE;
      }
   }

   *pcbOut = sbOut.cbBuffer;

   if (!pAS->fInitialized)
      pAS->fInitialized = TRUE;

   *pfDone = !(ss == SEC_I_CONTINUE_NEEDED
         || ss == SEC_I_COMPLETE_AND_CONTINUE);

   return TRUE;
}


///////////////////////////////////////////////////////////////////////////////


BOOL WINAPI SSPLogonUser(LPTSTR szDomain, LPTSTR szUser, LPTSTR szPassword) {

   AUTH_SEQ    asServer   = {0};
   AUTH_SEQ    asClient   = {0};
   BOOL        fDone      = FALSE;
   BOOL        fResult    = FALSE;
   DWORD       cbOut      = 0;
   DWORD       cbIn       = 0;
   DWORD       cbMaxToken = 0;
   PVOID       pClientBuf = NULL;
   PVOID       pServerBuf = NULL;
   PSecPkgInfo pSPI       = NULL;
   HMODULE     hModule    = NULL;

   SEC_WINNT_AUTH_IDENTITY ai;

   __try {

      hModule = LoadSecurityDll();
      if (!hModule)
         __leave;

      // Get max token size
      _QuerySecurityPackageInfo(_T("NTLM"), &pSPI);
      cbMaxToken = pSPI->cbMaxToken;
      _FreeContextBuffer(pSPI);

      // Allocate buffers for client and server messages
      pClientBuf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, cbMaxToken);
      pServerBuf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, cbMaxToken);

      // Initialize auth identity structure
      ZeroMemory(&ai, sizeof(ai));
#if defined(UNICODE) || defined(_UNICODE)
      ai.Domain = szDomain;
      ai.DomainLength = lstrlen(szDomain);
      ai.User = szUser;
      ai.UserLength = lstrlen(szUser);
      ai.Password = szPassword;
      ai.PasswordLength = lstrlen(szPassword);
      ai.Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
#else
      ai.Domain = (unsigned char *)szDomain;
      ai.DomainLength = lstrlen(szDomain);
      ai.User = (unsigned char *)szUser;
      ai.UserLength = lstrlen(szUser);
      ai.Password = (unsigned char *)szPassword;
      ai.PasswordLength = lstrlen(szPassword);
      ai.Flags = SEC_WINNT_AUTH_IDENTITY_ANSI;
#endif

      // Prepare client message (negotiate) .
      cbOut = cbMaxToken;
      if (!GenClientContext(&asClient, &ai, NULL, 0, pClientBuf, &cbOut, &fDone))
         __leave;

      // Prepare server message (challenge) .
      cbIn = cbOut;
      cbOut = cbMaxToken;
      if (!GenServerContext(&asServer, pClientBuf, cbIn, pServerBuf, &cbOut,
            &fDone))
         __leave;
         // Most likely failure: AcceptServerContext fails with SEC_E_LOGON_DENIED
         // in the case of bad szUser or szPassword.
         // Unexpected Result: Logon will succeed if you pass in a bad szUser and
         // the guest account is enabled in the specified domain.

      // Prepare client message (authenticate) .
      cbIn = cbOut;
      cbOut = cbMaxToken;
      if (!GenClientContext(&asClient, &ai, pServerBuf, cbIn, pClientBuf, &cbOut,
            &fDone))
         __leave;

      // Prepare server message (authentication) .
      cbIn = cbOut;
      cbOut = cbMaxToken;
      if (!GenServerContext(&asServer, pClientBuf, cbIn, pServerBuf, &cbOut,
            &fDone))
         __leave;

      fResult = TRUE;

      {
         HANDLE hToken = NULL;

         if (_QuerySecurityContextToken(&asServer.hctxt, &hToken) == 0)
         {
            if (IsGuest(hToken))
            {
               printf("Logged in as Guest\n");
               fResult = FALSE;
            }
            else
               printf("Logged in as the desired user\n");
            CloseHandle(hToken);
         }
      }


   } __finally {

      // Clean up resources
      if (asClient.fHaveCtxtHandle)
         _DeleteSecurityContext(&asClient.hctxt);

      if (asClient.fHaveCredHandle)
         _FreeCredentialsHandle(&asClient.hcred);

      if (asServer.fHaveCtxtHandle)
         _DeleteSecurityContext(&asServer.hctxt);

      if (asServer.fHaveCredHandle)
         _FreeCredentialsHandle(&asServer.hcred);

      if (hModule)
         UnloadSecurityDll(hModule);

      HeapFree(GetProcessHeap(), 0, pClientBuf);
      HeapFree(GetProcessHeap(), 0, pServerBuf);

   }

   return fResult;
}

//--------------------------------------------------------------------
// The GetConsoleInput function gets an array of characters from the 
// keyboard, while printing only asterisks to the screen.

void GetConsoleInput(TCHAR* strInput, int intMaxChars)
{
	char ch;
	char minChar = ' ';
	minChar++;

	ch = getch();
	while (ch != '\r')
	{
		if (ch == '\b' && strlen(strInput) > 0)
		{
			strInput[strlen(strInput)-1]   = '\0';
			printf("\b \b");
		}
		else if (ch >= minChar && (int)strlen(strInput) < intMaxChars)
		{
			strInput[strlen(strInput)+1] = '\0';
			strInput[strlen(strInput)]   = ch;
			putch('*');
		}
		ch = getch();
	}
	putch('\n');
}

void _tmain(int argc, TCHAR **argv)
{
	TCHAR password[PWLEN+1];

   if (argc != 3) 
	{
		_tprintf(_T("Usage: %s DomainName UserName\n"), argv[0]);
		return;
	}

	_tprintf(_T("Enter password for the specified user : "));
	password[0] = 0;
	GetConsoleInput(password, PWLEN);
	_tprintf(_T("\n"));
   // argv[1] - Domain Name
   // argv[2] - User Name
   if (SSPLogonUser(argv[1], argv[2], password))
   {
      _tprintf(_T("User Credentials are valid\n"));
   }
   else
      _tprintf(_T("User Credentials are NOT valid\n"));
}

???

???? ID: 180548 - ????? ???????: 02 ?????? 2010 - ??????: 4.0
???? ???? ???? ??:
  • Microsoft Win32 Application Programming Interface, ?? ???? ??? ?????? ???? ???:
    • Microsoft Windows 98 Standard Edition
    • Microsoft Windows Millennium Edition
??????: 
kbapi kbFAQ kbhowto kbkernbase kbsecurity kbmt KB180548 KbMthi
???? ?????? ????????
??????????: ?? ???? ?? ???? ??????? ?? ????? ?? Microsoft ????-?????? ?????????? ?????? ?????? ???? ??? ??. Microsoft ???? ??? ????-???????? ?? ????-???????? ????? ?????? ?? ???? ???????? ???? ?? ???? ????? ????? ??? ?? ??? ?????? ?? ???? ???? ???? ??? ????? ??. ???????, ????-???????? ???? ????? ???? ???? ???? ???. ?????, ????????, ?????-???? ?? ??????? ?? ???????? ?? ???? ???, ???? ?? ??? ?????? ???? ???? ??? ????? ??? ?? ???? ??. Microsoft ??????? ??? ???? ?? ?????? ?? ??????????, ????????? ?? ??? ?????? ?? ???? ????? ?? ???? ???????? ?? ??? ???? ????? ?? ??? ????????? ???? ??. Microsoft ????-?????? ?????????? ?? ????? ?????? ?? ?? ??? ??.
?????????? ?? ??????? ????????? ??????? ??:180548

??????????? ???

 

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