735 lines
20 KiB
C
735 lines
20 KiB
C
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/*************************************************************************
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*
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* nw.c
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*
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* Netware security support
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*
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* Copyright Microsoft Corporation, 1998
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*
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*
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*************************************************************************/
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/*
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* Includes
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*/
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#include "precomp.h"
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#pragma hdrstop
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#include <ntlsa.h>
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#include <rpc.h>
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#if DBG
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ULONG
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DbgPrint(
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PCH Format,
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...
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);
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#define DBGPRINT(x) DbgPrint x
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#if DBGTRACE
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#define TRACE0(x) DbgPrint x
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#define TRACE1(x) DbgPrint x
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#else
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#define TRACE0(x)
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#define TRACE1(x)
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#endif
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#else
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#define DBGPRINT(x)
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#define TRACE0(x)
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#define TRACE1(x)
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#endif
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/*
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* This is the prefix for the secret object name.
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*/
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#define CITRIX_NW_SECRET_NAME L"CTX_NW_INFO_"
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/*=============================================================================
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== Public functions
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=============================================================================*/
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/*=============================================================================
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== Functions Used
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=============================================================================*/
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NTSTATUS CreateSecretInLsa(
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PWCHAR pSecretName,
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PWCHAR pSecretData
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);
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NTSTATUS
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QuerySecretInLsa(
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PWCHAR pSecretName,
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PWCHAR pSecretData,
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DWORD ByteCount
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);
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BOOL
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IsCallerSystem( VOID );
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BOOL
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IsCallerAdmin( VOID );
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BOOL
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TestUserForAdmin( VOID );
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NTSTATUS
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IsZeroterminateStringA(
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PBYTE pString,
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DWORD dwLength
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);
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NTSTATUS
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IsZeroterminateStringW(
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PWCHAR pwString,
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DWORD dwLength
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) ;
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/*=============================================================================
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== Global data
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=============================================================================*/
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/*******************************************************************************
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*
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* RpcServerNWLogonSetAdmin (UNICODE)
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*
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* Creates or updates the specified server's NWLogon Domain Administrator
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* UserID and Password in the SAM secret objects of the specified server.
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*
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* The caller must be ADMIN.
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*
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* ENTRY:
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* pServerName (input)
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* Server to store info for. This server is typically a domain controller.
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*
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* pNWLogon (input)
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* Pointer to a NWLOGONADMIN structure containing specified server's
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* domain admin and password.
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*
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* EXIT:
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* ERROR_SUCCESS - no error
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* ERROR_INSUFFICIENT_BUFFER - pUserConfig buffer too small
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* otherwise: the error code
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*
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******************************************************************************/
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BOOLEAN
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RpcServerNWLogonSetAdmin(
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HANDLE hServer,
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DWORD *pResult,
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PWCHAR pServerName,
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DWORD ServerNameSize,
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PNWLOGONADMIN pNWLogon,
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DWORD ByteCount
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)
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{
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DWORD Size;
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DWORD Result;
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PWCHAR pDomain;
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UINT LocalFlag;
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PWCHAR pSecretName;
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RPC_STATUS RpcStatus;
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WCHAR UserPass[ USERNAME_LENGTH + PASSWORD_LENGTH + DOMAIN_LENGTH + 3 ];
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// Do minimal buffer validation
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if (pNWLogon == NULL ) {
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*pResult = STATUS_INVALID_USER_BUFFER;
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return FALSE;
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}
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if( pServerName == NULL ) {
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DBGPRINT(("NWLogonSetAdmin: No ServerName\n"));
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*pResult = (ULONG)STATUS_INVALID_PARAMETER;
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return( FALSE );
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}
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*pResult = IsZeroterminateStringW(pServerName, ServerNameSize );
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if (*pResult != STATUS_SUCCESS) {
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return FALSE;
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}
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pNWLogon->Username[USERNAME_LENGTH] = (WCHAR) 0;
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pNWLogon->Password[PASSWORD_LENGTH] = (WCHAR) 0;
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pNWLogon->Domain[DOMAIN_LENGTH] = (WCHAR) 0;
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//
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// Only a SYSTEM mode caller (IE: Winlogon) is allowed
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// to query this value.
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//
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RpcStatus = RpcImpersonateClient( NULL );
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if( RpcStatus != RPC_S_OK ) {
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DBGPRINT(("RpcServerNWLogonSetAdmin: Not impersonating! RpcStatus 0x%x\n",RpcStatus));
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*pResult = (ULONG)STATUS_CANNOT_IMPERSONATE;
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return( FALSE );
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}
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//
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// Inquire if local RPC call
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//
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RpcStatus = I_RpcBindingIsClientLocal(
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0, // Active RPC call we are servicing
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&LocalFlag
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);
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if( RpcStatus != RPC_S_OK ) {
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DBGPRINT(("NWLogonSetAdmin Could not query local client RpcStatus 0x%x\n",RpcStatus));
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RpcRevertToSelf();
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*pResult = (ULONG)STATUS_ACCESS_DENIED;
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return( FALSE );
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}
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if( !LocalFlag ) {
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DBGPRINT(("NWLogonSetAdmin Not a local client call\n"));
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RpcRevertToSelf();
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*pResult = (ULONG)STATUS_ACCESS_DENIED;
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return( FALSE );
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}
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if( !IsCallerAdmin() ) {
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RpcRevertToSelf();
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DBGPRINT(("RpcServerNWLogonSetAdmin: Caller Not SYSTEM\n"));
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*pResult = (ULONG)STATUS_ACCESS_DENIED;
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return( FALSE );
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}
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RpcRevertToSelf();
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if( ByteCount < sizeof(NWLOGONADMIN) ) {
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DBGPRINT(("NWLogonSetAdmin: Bad size %d\n",ByteCount));
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*pResult = (ULONG)STATUS_INFO_LENGTH_MISMATCH;
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return( FALSE );
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}
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// check for username, and if there is one then encrypt username and pw
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TRACE0(("NWLogonSetAdmin: UserName %ws\n",pNWLogon->Username));
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// concatenate the username, password, and domain together
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wcscpy(UserPass, pNWLogon->Username);
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wcscat(UserPass, L"/");
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wcscat(UserPass, pNWLogon->Password);
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wcscat(UserPass, L"/");
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// Skip over any \\ backslashes (if a machine name was passed in)
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pDomain = pNWLogon->Domain;
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while (*pDomain == L'\\') {
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pDomain++;
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}
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wcscat(UserPass, pDomain);
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//
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// Build the secret name from the server name.
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//
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// This is because each domain will have a different entry.
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//
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// Skip over any \\ backslashes (if a machine name was passed in)
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while (*pServerName == L'\\') {
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pServerName++;
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}
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Size = wcslen(pServerName) + 1;
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Size *= sizeof(WCHAR);
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Size += sizeof(CITRIX_NW_SECRET_NAME);
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pSecretName = MemAlloc( Size );
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if( pSecretName == NULL ) {
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DBGPRINT(("NWLogonSetAdmin: No memory\n"));
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*pResult = (ULONG)STATUS_NO_MEMORY;
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return( FALSE );
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}
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wcscpy(pSecretName, CITRIX_NW_SECRET_NAME );
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wcscat(pSecretName, pServerName );
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// check for username, and if there is one then encrypt username and pw
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if ( wcslen( pNWLogon->Username ) ) {
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// store encrypted username
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Result = CreateSecretInLsa( pSecretName, UserPass );
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} else {
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// If there wasn't a username, clear this secret object.
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Result = CreateSecretInLsa( pSecretName, L"");
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DBGPRINT(("TERMSRV: RpcServerNWLogonSetAdmin: UserName not supplied\n"));
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}
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MemFree( pSecretName );
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*pResult = Result;
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return( Result == STATUS_SUCCESS );
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}
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/*******************************************************************************
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*
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* RpcServerQueryNWLogonAdmin
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*
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* Query NWLOGONADMIN structure from the SAM Secret object on the given
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* WinFrame server.
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*
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* The caller must be SYSTEM context, IE: WinLogon.
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*
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* ENTRY:
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* hServer (input)
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* Rpc handle
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*
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* pServerName (input)
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* Server to store info for. This server is typically a domain controller.
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*
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* pNWLogon (output)
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* pointer to NWLOGONADMIN structure
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*
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* EXIT:
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* nothing
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*
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******************************************************************************/
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BOOLEAN
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RpcServerNWLogonQueryAdmin(
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HANDLE hServer,
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DWORD *pResult,
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PWCHAR pServerName,
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DWORD ServerNameSize,
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PNWLOGONADMIN pNWLogon,
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DWORD ByteCount
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)
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{
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PWCHAR pwch;
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DWORD Size;
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ULONG ulcsep;
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UINT LocalFlag;
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NTSTATUS Status;
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PWCHAR pSecretName;
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RPC_STATUS RpcStatus;
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WCHAR encString[ USERNAME_LENGTH + PASSWORD_LENGTH + DOMAIN_LENGTH + 3 ];
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BOOLEAN SystemCaller = FALSE;
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// Do minimal buffer validation
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if (pNWLogon == NULL) {
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*pResult = STATUS_INVALID_USER_BUFFER;
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return FALSE;
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}
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if( pServerName == NULL ) {
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DBGPRINT(("NWLogonQueryAdmin: No ServerName\n"));
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*pResult = (ULONG)STATUS_INVALID_PARAMETER;
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return( FALSE );
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}
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*pResult = IsZeroterminateStringW(pServerName, ServerNameSize );
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if (*pResult != STATUS_SUCCESS) {
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return FALSE;
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}
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pNWLogon->Username[USERNAME_LENGTH] = (WCHAR) 0;
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pNWLogon->Password[PASSWORD_LENGTH] = (WCHAR) 0;
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pNWLogon->Domain[DOMAIN_LENGTH] = (WCHAR) 0;
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//
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//
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// Only a SYSTEM mode caller (IE: Winlogon) is allowed
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// to query this value.
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//
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RpcStatus = RpcImpersonateClient( NULL );
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if( RpcStatus != RPC_S_OK ) {
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DBGPRINT(("RpcServerNWLogonQueryAdmin: Not impersonating! RpcStatus 0x%x\n",RpcStatus));
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*pResult = (ULONG)STATUS_CANNOT_IMPERSONATE;
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return( FALSE );
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}
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//
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// Inquire if local RPC call
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//
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RpcStatus = I_RpcBindingIsClientLocal(
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0, // Active RPC call we are servicing
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&LocalFlag
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);
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if( RpcStatus != RPC_S_OK ) {
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DBGPRINT(("NWLogonQueryAdmin Could not query local client RpcStatus 0x%x\n",RpcStatus));
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RpcRevertToSelf();
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*pResult = (ULONG)STATUS_ACCESS_DENIED;
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return( FALSE );
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}
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if( !LocalFlag ) {
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DBGPRINT(("NWLogonQueryAdmin Not a local client call\n"));
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RpcRevertToSelf();
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*pResult = (ULONG)STATUS_ACCESS_DENIED;
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return( FALSE );
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}
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/* find out who is calling us system has complete access, admin can't get password, user is kicked out */
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if( IsCallerSystem() ) {
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SystemCaller = TRUE;
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}
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if( !TestUserForAdmin() && (SystemCaller != TRUE) ) {
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RpcRevertToSelf();
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DBGPRINT(("RpcServerNWLogonQueryAdmin: Caller Not SYSTEM or Admin\n"));
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*pResult = (ULONG)STATUS_ACCESS_DENIED;
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return( FALSE );
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}
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RpcRevertToSelf();
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if( ByteCount < sizeof(NWLOGONADMIN) ) {
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DBGPRINT(("NWLogonQueryAdmin: Bad size %d\n",ByteCount));
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*pResult = (ULONG)STATUS_INFO_LENGTH_MISMATCH;
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return( FALSE );
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}
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//
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// Build the secret name from the server name.
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//
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// This is because each domain will have a different entry.
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//
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// Skip over any \\ backslashes (if a machine name was passed in)
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while (*pServerName == L'\\') {
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pServerName++;
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}
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Size = wcslen(pServerName) + 1;
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Size *= sizeof(WCHAR);
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Size += sizeof(CITRIX_NW_SECRET_NAME);
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pSecretName = MemAlloc( Size );
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if( pSecretName == NULL ) {
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DBGPRINT(("NWLogonSetAdmin: No memory\n"));
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*pResult = (ULONG)STATUS_NO_MEMORY;
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return( FALSE );
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}
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wcscpy(pSecretName, CITRIX_NW_SECRET_NAME );
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wcscat(pSecretName, pServerName );
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Status = QuerySecretInLsa(
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pSecretName,
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encString,
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sizeof(encString)
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);
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MemFree( pSecretName );
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if( !NT_SUCCESS(Status) ) {
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*pResult = Status;
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DBGPRINT(("NWLogonQueryAdmin: Error 0x%x querying secret object\n",Status));
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return( FALSE );
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}
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// check for username/password if there is one then decrypt it
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if ( wcslen( encString ) ) {
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// Change the '/' seperator to null
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pwch = &encString[0];
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ulcsep = 0;
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while (pwch && *pwch) {
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pwch = wcschr(pwch, L'/');
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if (pwch) {
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*pwch = L'\0';
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pwch++;
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ulcsep++;
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}
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}
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// get clear text username
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wcscpy( pNWLogon->Username, &encString[0] );
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if (ulcsep >= 1) {
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// Skip to the password
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pwch = &encString[0] + wcslen(&encString[0]) + 1;
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if( SystemCaller == TRUE ){
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// get clear text password
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wcscpy( pNWLogon->Password, pwch);
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} else {
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*pNWLogon->Password = L'\0';
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}
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} else {
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*pNWLogon->Password = L'\0';
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}
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if (ulcsep >= 2) {
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// Skip to the domain string
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pwch = pwch + wcslen(pwch) + 1;
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// get clear text domain
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wcscpy( pNWLogon->Domain, pwch);
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} else {
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*pNWLogon->Domain = L'\0';
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}
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TRACE0(("NwLogonQueryAdmin :%ws:%ws:%ws:\n",pNWLogon->Username,pNWLogon->Domain,pNWLogon->Password));
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*pResult = STATUS_SUCCESS;
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return( TRUE );
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}
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else {
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DBGPRINT(("RpcServerNWLogonQueryAdmin: zero length data\n"));
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// set to username and password to NULL strings
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pNWLogon->Password[0] = L'\0';
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pNWLogon->Username[0] = L'\0';
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pNWLogon->Domain[0] = L'\0';
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*pResult = STATUS_SUCCESS;
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return( TRUE );
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}
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}
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|
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/*******************************************************************************
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*
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* CreateSecretInLsa
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*
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* Create the secret object in the LSA to keep it from prying eyes.
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*
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* NOTE: There is no need to encode the data since it is RSA encrypted
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* by the LSA secret routines.
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*
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* ENTRY:
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* pSecretName (input)
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* Secret name to create.
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*
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* pSecretData (input)
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* Data to store in secret
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*
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* EXIT:
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* NTSTATUS
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*
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******************************************************************************/
|
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|
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NTSTATUS
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CreateSecretInLsa(
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PWCHAR pSecretName,
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PWCHAR pSecretData
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)
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{
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NTSTATUS Status;
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OBJECT_ATTRIBUTES ObjectAttributes;
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SECURITY_QUALITY_OF_SERVICE SecurityQualityOfService;
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LSA_HANDLE PolicyHandle;
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UNICODE_STRING SecretName;
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UNICODE_STRING SecretValue;
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LSA_HANDLE SecretHandle;
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ACCESS_MASK DesiredAccess;
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if( pSecretName == NULL ) {
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DBGPRINT(("CreateSecretInLsa: NULL SecretName\n"));
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return( STATUS_INVALID_PARAMETER );
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}
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SecurityQualityOfService.Length = sizeof(SECURITY_QUALITY_OF_SERVICE);
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SecurityQualityOfService.ImpersonationLevel = SecurityImpersonation;
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SecurityQualityOfService.ContextTrackingMode = SECURITY_DYNAMIC_TRACKING;
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SecurityQualityOfService.EffectiveOnly = FALSE;
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InitializeObjectAttributes(
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&ObjectAttributes,
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NULL,
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0L,
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NULL,
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NULL
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);
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ObjectAttributes.SecurityQualityOfService = &SecurityQualityOfService;
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Status = LsaOpenPolicy(
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NULL, // SystemName (Local)
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&ObjectAttributes,
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GENERIC_ALL,
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&PolicyHandle
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);
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|
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if( !NT_SUCCESS(Status) ) {
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DBGPRINT(("Error 0x%x Opening Policy\n",Status));
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return( Status );
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}
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|
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RtlInitUnicodeString( &SecretName, pSecretName );
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DesiredAccess = GENERIC_ALL;
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TRACE0(("Creating Secret name :%ws:\n",pSecretName));
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|
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Status = LsaCreateSecret(
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PolicyHandle,
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&SecretName,
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DesiredAccess,
|
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&SecretHandle
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);
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// Its OK if the name already exits, we will set a new value or delete
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|
if( Status == STATUS_OBJECT_NAME_COLLISION ) {
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TRACE0(("CreateSecretInLsa: Existing Entry, Opening\n"));
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Status = LsaOpenSecret(
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PolicyHandle,
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&SecretName,
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DesiredAccess,
|
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&SecretHandle
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);
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}
|
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|
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if( !NT_SUCCESS(Status) ) {
|
|
DBGPRINT(("Error 0x%x Creating Secret\n",Status));
|
|
|
|
/* makarp; Close Policy Handle in case of LsaCreateSecrete, LsaopenSecret failures. #182787 */
|
|
LsaClose( PolicyHandle );
|
|
return( Status );
|
|
}
|
|
|
|
TRACE0(("CreateSecretInLsa: Status 0x%x\n",Status));
|
|
|
|
if ( wcslen(pSecretData) != 0 ){
|
|
RtlInitUnicodeString( &SecretValue, pSecretData );
|
|
|
|
Status = LsaSetSecret( SecretHandle, &SecretValue, NULL );
|
|
|
|
TRACE0(("CreateSecretInLsa: LsaSetSecret Status 0x%x\n",Status));
|
|
|
|
LsaClose(SecretHandle);
|
|
}
|
|
else{
|
|
Status = LsaDelete(SecretHandle);
|
|
}
|
|
|
|
LsaClose( PolicyHandle );
|
|
|
|
return( Status );
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* QuerySecretInLsa
|
|
*
|
|
* Query the secret object in the LSA.
|
|
*
|
|
* ENTRY:
|
|
* pSecretName (input)
|
|
* Secret name to create.
|
|
*
|
|
* pSecretData (output)
|
|
* Buffer to store secret data.
|
|
*
|
|
* ByteCount (input)
|
|
* Maximum size of buffer to store result.
|
|
*
|
|
* EXIT:
|
|
* NTSTATUS
|
|
*
|
|
******************************************************************************/
|
|
|
|
NTSTATUS
|
|
QuerySecretInLsa(
|
|
PWCHAR pSecretName,
|
|
PWCHAR pSecretData,
|
|
DWORD ByteCount
|
|
)
|
|
{
|
|
NTSTATUS Status;
|
|
OBJECT_ATTRIBUTES ObjectAttributes;
|
|
SECURITY_QUALITY_OF_SERVICE SecurityQualityOfService;
|
|
LSA_HANDLE PolicyHandle;
|
|
UNICODE_STRING SecretName;
|
|
LSA_HANDLE SecretHandle;
|
|
ACCESS_MASK DesiredAccess;
|
|
LARGE_INTEGER CurrentTime;
|
|
PUNICODE_STRING pCurrentValue = NULL;
|
|
|
|
SecurityQualityOfService.Length = sizeof(SECURITY_QUALITY_OF_SERVICE);
|
|
SecurityQualityOfService.ImpersonationLevel = SecurityImpersonation;
|
|
SecurityQualityOfService.ContextTrackingMode = SECURITY_DYNAMIC_TRACKING;
|
|
SecurityQualityOfService.EffectiveOnly = FALSE;
|
|
|
|
InitializeObjectAttributes(
|
|
&ObjectAttributes,
|
|
NULL,
|
|
0L,
|
|
NULL,
|
|
NULL
|
|
);
|
|
|
|
ObjectAttributes.SecurityQualityOfService = &SecurityQualityOfService;
|
|
|
|
Status = LsaOpenPolicy(
|
|
NULL, // SystemName (Local)
|
|
&ObjectAttributes,
|
|
GENERIC_ALL,
|
|
&PolicyHandle
|
|
);
|
|
|
|
if( !NT_SUCCESS(Status) ) {
|
|
DBGPRINT(("Error 0x%x Opening Policy\n",Status));
|
|
return( Status );
|
|
}
|
|
|
|
RtlInitUnicodeString( &SecretName, pSecretName );
|
|
|
|
DesiredAccess = GENERIC_ALL;
|
|
|
|
Status = LsaOpenSecret(
|
|
PolicyHandle,
|
|
&SecretName,
|
|
DesiredAccess,
|
|
&SecretHandle
|
|
);
|
|
|
|
if( !NT_SUCCESS(Status) ) {
|
|
DBGPRINT(("Error 0x%x Opening Secret :%ws:\n",Status,pSecretName));
|
|
|
|
/* makarp; Close Policy Handle in case of LsaopenSecret failures. #182787 */
|
|
LsaClose( PolicyHandle );
|
|
|
|
return( Status );
|
|
}
|
|
|
|
Status = LsaQuerySecret(
|
|
SecretHandle,
|
|
&pCurrentValue,
|
|
&CurrentTime,
|
|
NULL,
|
|
NULL
|
|
);
|
|
|
|
TRACE0(("QuerySecretInLsa: Status 0x%x\n",Status));
|
|
|
|
if( NT_SUCCESS(Status) ) {
|
|
if (pCurrentValue != NULL) {
|
|
if( (pCurrentValue->Length+sizeof(WCHAR)) > ByteCount ) {
|
|
Status = STATUS_INFO_LENGTH_MISMATCH;
|
|
}
|
|
else {
|
|
RtlMoveMemory( pSecretData, pCurrentValue->Buffer, pCurrentValue->Length );
|
|
pSecretData[pCurrentValue->Length/sizeof(WCHAR)] = 0;
|
|
}
|
|
LsaFreeMemory( pCurrentValue );
|
|
} else {
|
|
pSecretData[0] = (WCHAR) 0;
|
|
}
|
|
|
|
}
|
|
|
|
LsaClose(SecretHandle);
|
|
|
|
LsaClose( PolicyHandle );
|
|
|
|
TRACE0(("QuerySecretInLsa: Final Status 0x%x\n",Status));
|
|
|
|
return( Status );
|
|
}
|
|
|