672 lines
17 KiB
C
672 lines
17 KiB
C
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1997.
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//
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// File: whackspn.c
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//
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// Contents:
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//
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// Classes:
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//
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// Functions:
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//
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// History: 7-30-98 RichardW Created
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//
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//----------------------------------------------------------------------------
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#define LDAP_UNICODE 1
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#define SECURITY_WIN32
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#include <rpc.h>
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#include <sspi.h>
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#include <secext.h>
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#include <lm.h>
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#include <winsock2.h>
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#include <winldap.h>
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#include <ntldap.h>
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#include <dsgetdc.h>
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#include <dsgetdcp.h>
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#include <ntdsapi.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define NlPrint(x) DPrint x;
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#define NL_CRITICAL 0
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#define NL_MISC 0
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HANDLE hGC ;
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BOOL AddDollar = TRUE;
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VOID
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DPrint(
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DWORD Level,
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PCHAR FormatString,
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...
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)
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{
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va_list ArgList;
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va_start(ArgList, FormatString);
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vprintf( FormatString, ArgList );
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va_end( ArgList );
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}
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BOOL
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FindDomainForServer(
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PWSTR Server,
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PWSTR Domain
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)
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{
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ULONG NetStatus ;
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WCHAR LocalServerName[ 64 ];
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PDOMAIN_CONTROLLER_INFOW DcInfo ;
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wcsncpy( LocalServerName, Server, 63 );
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if ( AddDollar ) {
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wcscat( LocalServerName, L"$" );
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}
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NetStatus = DsGetDcNameWithAccountW(
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NULL,
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LocalServerName,
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( AddDollar ? UF_MACHINE_ACCOUNT_MASK : UF_NORMAL_ACCOUNT ),
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L"",
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NULL,
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NULL,
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DS_DIRECTORY_SERVICE_REQUIRED |
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DS_RETURN_DNS_NAME,
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&DcInfo );
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if ( NetStatus == 0 ) {
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wcscpy( Domain, DcInfo->DomainName );
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NetApiBufferFree( DcInfo );
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return TRUE ;
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} else {
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printf("can't find DC for %ws - %u\n", LocalServerName, NetStatus );
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}
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return FALSE ;
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}
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DWORD
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AddDnsHostNameAttribute(
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HANDLE hDs,
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PWCHAR Server,
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PWCHAR DnsDomain
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)
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{
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NET_API_STATUS NetStatus = NO_ERROR;
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ULONG CrackStatus = DS_NAME_NO_ERROR;
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LPWSTR DnsHostNameValues[2];
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LPWSTR SpnArray[3];
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LPWSTR DnsSpn = NULL;
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LPWSTR NetbiosSpn = NULL;
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LDAPModW DnsHostNameAttr;
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LDAPModW SpnAttr;
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LDAPModW *Mods[3] = {NULL};
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LDAP *LdapHandle = NULL;
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LDAPMessage *LdapMessage = NULL;
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PDS_NAME_RESULTW CrackedName = NULL;
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LPWSTR DnOfAccount = NULL;
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LPWSTR NameToCrack;
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DWORD SamNameSize;
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WCHAR SamName[ DNLEN + 1 + CNLEN + 1 + 1];
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WCHAR nameBuffer[ 256 ];
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ULONG LdapStatus;
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LONG LdapOption;
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LDAP_TIMEVAL LdapTimeout;
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ULONG MessageNumber;
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//
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// Ldap modify control needed to indicate that the
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// existing values of the modified attributes should
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// be left intact and the missing ones should be added.
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// Without this control, a modification of an attribute
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// that results in an addition of a value that already
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// exists will fail.
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//
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LDAPControl ModifyControl = {
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LDAP_SERVER_PERMISSIVE_MODIFY_OID_W,
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{
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0, NULL
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},
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FALSE
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};
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PLDAPControl ModifyControlArray[2] =
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{
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&ModifyControl,
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NULL
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};
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//
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// Prepare DnsHostName modification entry
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//
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wcsncpy( nameBuffer, Server, sizeof( nameBuffer ) / sizeof( WCHAR ));
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wcscat( nameBuffer, L"." );
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wcscat( nameBuffer, DnsDomain );
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DnsHostNameValues[0] = nameBuffer;
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DnsHostNameValues[1] = NULL;
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//
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// If we set both DnsHostName and SPN, then DnsHostName is
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// missing, so add it. If we set DnsHostName only, then
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// DnsHostName already exists (but incorrect), so replace it.
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//
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if ( TRUE ) {
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DnsHostNameAttr.mod_op = LDAP_MOD_ADD;
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} else {
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DnsHostNameAttr.mod_op = LDAP_MOD_REPLACE;
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}
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DnsHostNameAttr.mod_type = L"DnsHostName";
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DnsHostNameAttr.mod_values = DnsHostNameValues;
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Mods[0] = &DnsHostNameAttr;
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Mods[1] = NULL;
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//
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// The name of the computer object is
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// <NetbiosDomainName>\<NetbiosComputerName>$
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//
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wcscpy( SamName, DnsDomain );
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{
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PWCHAR p;
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p = wcschr( SamName, L'.' );
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*p = UNICODE_NULL;
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}
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wcscat( SamName, L"\\" );
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wcscat( SamName, Server );
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wcscat( SamName, L"$" );
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//
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// Crack the sam account name into a DN:
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//
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NameToCrack = SamName;
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NetStatus = DsCrackNamesW(
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hDs,
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0,
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DS_NT4_ACCOUNT_NAME,
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DS_FQDN_1779_NAME,
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1,
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&NameToCrack,
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&CrackedName );
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if ( NetStatus != NO_ERROR ) {
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NlPrint(( NL_CRITICAL,
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"SPN: CrackNames failed on %ws for %ws: %ld\n",
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DnsDomain,
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SamName,
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NetStatus ));
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goto Cleanup ;
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}
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if ( CrackedName->cItems != 1 ) {
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CrackStatus = DS_NAME_ERROR_NOT_UNIQUE;
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NlPrint(( NL_CRITICAL,
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"SPN: Cracked Name is not unique on %ws for %ws: %ld\n",
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DnsDomain,
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SamName,
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NetStatus ));
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goto Cleanup ;
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}
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if ( CrackedName->rItems[ 0 ].status != DS_NAME_NO_ERROR ) {
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NlPrint(( NL_CRITICAL,
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"SPN: CrackNames failed on %ws for %ws: substatus %ld\n",
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DnsDomain,
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SamName,
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CrackedName->rItems[ 0 ].status ));
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CrackStatus = CrackedName->rItems[ 0 ].status;
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goto Cleanup ;
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}
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DnOfAccount = CrackedName->rItems[0].pName;
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//
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// Open an LDAP connection to the DC and set useful options
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//
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LdapHandle = ldap_init( DnsDomain, LDAP_PORT );
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if ( LdapHandle == NULL ) {
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NetStatus = GetLastError();
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NlPrint(( NL_CRITICAL,
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"SPN: ldap_init failed on %ws for %ws: %ld\n",
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DnsDomain,
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SamName,
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NetStatus ));
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goto Cleanup;
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}
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// 30 second timeout
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LdapOption = 30;
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LdapStatus = ldap_set_optionW( LdapHandle, LDAP_OPT_TIMELIMIT, &LdapOption );
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if ( LdapStatus != LDAP_SUCCESS ) {
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NlPrint(( NL_CRITICAL,
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"SPN: ldap_set_option LDAP_OPT_TIMELIMIT failed on %ws for %ws: %ld: %s\n",
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DnsDomain,
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SamName,
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LdapStatus,
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ldap_err2stringA( LdapStatus )));
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NetStatus = LdapMapErrorToWin32(LdapStatus);
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goto Cleanup;
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}
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// Don't chase referals
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LdapOption = PtrToLong(LDAP_OPT_OFF);
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LdapStatus = ldap_set_optionW( LdapHandle, LDAP_OPT_REFERRALS, &LdapOption );
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if ( LdapStatus != LDAP_SUCCESS ) {
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NlPrint(( NL_CRITICAL,
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"SPN: ldap_set_option LDAP_OPT_REFERRALS failed on %ws for %ws: %ld: %s\n",
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DnsDomain,
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SamName,
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LdapStatus,
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ldap_err2stringA( LdapStatus )));
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NetStatus = LdapMapErrorToWin32(LdapStatus);
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goto Cleanup;
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}
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#if 0
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// Set the option telling LDAP that I passed it an explicit DC name and
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// that it can avoid the DsGetDcName.
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LdapOption = PtrToLong(LDAP_OPT_ON);
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LdapStatus = ldap_set_optionW( LdapHandle, LDAP_OPT_AREC_EXCLUSIVE, &LdapOption );
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if ( LdapStatus != LDAP_SUCCESS ) {
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NlPrint(( NL_CRITICAL,
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"SPN: ldap_set_option LDAP_OPT_AREC_EXCLUSIVE failed on %ws for %ws: %ld: %s\n",
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DnsDomain,
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SamName,
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LdapStatus,
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ldap_err2stringA( LdapStatus )));
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NetStatus = LdapMapErrorToWin32(LdapStatus);
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goto Cleanup;
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}
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#endif
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//
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// Bind to the DC
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//
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LdapStatus = ldap_bind_s( LdapHandle,
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NULL, // No DN of account to authenticate as
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NULL, // Default credentials
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LDAP_AUTH_NEGOTIATE );
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if ( LdapStatus != LDAP_SUCCESS ) {
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NlPrint(( NL_CRITICAL,
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"SPN: Cannot ldap_bind to %ws for %ws: %ld: %s\n",
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DnsDomain,
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SamName,
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LdapStatus,
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ldap_err2stringA( LdapStatus )));
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NetStatus = LdapMapErrorToWin32(LdapStatus);
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goto Cleanup;
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}
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//
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// Write the modifications
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//
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LdapStatus = ldap_modify_extW( LdapHandle,
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DnOfAccount,
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Mods,
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(PLDAPControl *) &ModifyControlArray,
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NULL, // No client controls
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&MessageNumber );
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if ( LdapStatus != LDAP_SUCCESS ) {
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NlPrint(( NL_CRITICAL,
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"SPN: Cannot ldap_modify on %ws for %ws: %ld: %s\n",
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DnsDomain,
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DnOfAccount,
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LdapStatus,
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ldap_err2stringA( LdapStatus )));
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NetStatus = LdapMapErrorToWin32(LdapStatus);
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goto Cleanup;
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}
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// Wait for the modify to complete
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LdapTimeout.tv_sec = 30;
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LdapTimeout.tv_usec = 0;
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LdapStatus = ldap_result( LdapHandle,
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MessageNumber,
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LDAP_MSG_ALL,
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&LdapTimeout,
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&LdapMessage );
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switch ( LdapStatus ) {
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case -1:
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NlPrint(( NL_CRITICAL,
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"SPN: Cannot ldap_result on %ws for %ws: %ld: %s\n",
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DnsDomain,
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SamName,
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LdapHandle->ld_errno,
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ldap_err2stringA( LdapHandle->ld_errno )));
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NetStatus = LdapMapErrorToWin32(LdapStatus);
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goto Cleanup;
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case 0:
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NlPrint(( NL_CRITICAL,
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"SPN: ldap_result timeout on %ws for %ws.\n",
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DnsDomain,
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SamName ));
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NetStatus = LdapMapErrorToWin32(LdapStatus);
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goto Cleanup;
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case LDAP_RES_MODIFY:
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if ( LdapMessage->lm_returncode != 0 ) {
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NlPrint(( NL_CRITICAL,
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"SPN: Cannot ldap_result on %ws for %ws: %ld: %s\n",
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DnsDomain,
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SamName,
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LdapMessage->lm_returncode,
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ldap_err2stringA( LdapMessage->lm_returncode )));
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NetStatus = LdapMapErrorToWin32(LdapMessage->lm_returncode);
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goto Cleanup;
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}
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NlPrint(( NL_MISC,
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"SPN: Set successfully on DC %ws\n",
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|
|
DnsDomain ));
|
||
|
|
break; // This is what we expect
|
||
|
|
|
||
|
|
default:
|
||
|
|
NlPrint(( NL_CRITICAL,
|
||
|
|
"SPN: ldap_result unexpected result on %ws for %ws: %ld\n",
|
||
|
|
DnsDomain,
|
||
|
|
SamName,
|
||
|
|
LdapStatus ));
|
||
|
|
NetStatus = LdapMapErrorToWin32(LdapStatus);
|
||
|
|
goto Cleanup;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
Cleanup:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Log the failure in the event log, if requested.
|
||
|
|
// Try to output the most specific error.
|
||
|
|
//
|
||
|
|
|
||
|
|
if ( CrackedName ) {
|
||
|
|
DsFreeNameResultW( CrackedName );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( LdapMessage != NULL ) {
|
||
|
|
ldap_msgfree( LdapMessage );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( LdapHandle != NULL ) {
|
||
|
|
ldap_unbind_s( LdapHandle );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( DnsSpn ) {
|
||
|
|
LocalFree( DnsSpn );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( NetbiosSpn ) {
|
||
|
|
LocalFree( NetbiosSpn );
|
||
|
|
}
|
||
|
|
|
||
|
|
return NetStatus;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
AddHostSpn(
|
||
|
|
PWSTR Server
|
||
|
|
)
|
||
|
|
{
|
||
|
|
WCHAR HostSpn[ 64 ];
|
||
|
|
WCHAR Domain[ MAX_PATH ];
|
||
|
|
WCHAR FlatName[ 64 ];
|
||
|
|
HANDLE hDs ;
|
||
|
|
ULONG NetStatus ;
|
||
|
|
PWSTR Dot ;
|
||
|
|
PDS_NAME_RESULTW Result ;
|
||
|
|
LPWSTR Flat = FlatName;
|
||
|
|
LPWSTR Spn = HostSpn ;
|
||
|
|
|
||
|
|
wcscpy( HostSpn, L"HOST/" );
|
||
|
|
wcscat( HostSpn, Server );
|
||
|
|
|
||
|
|
#if 1
|
||
|
|
if ( !FindDomainForServer( Server, Domain )) {
|
||
|
|
printf(" No domain controller for %ws found\n", Server );
|
||
|
|
return FALSE ;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
wcscpy( Domain, L"ntdev.microsoft.com" );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
Dot = wcschr( Domain, L'.' );
|
||
|
|
if ( Dot ) {
|
||
|
|
*Dot = L'\0';
|
||
|
|
}
|
||
|
|
|
||
|
|
wcscpy( FlatName, Domain );
|
||
|
|
|
||
|
|
if ( Dot ) {
|
||
|
|
*Dot = L'.' ;
|
||
|
|
}
|
||
|
|
|
||
|
|
wcscat( FlatName, L"\\" );
|
||
|
|
wcscat( FlatName, Server );
|
||
|
|
if ( AddDollar ) {
|
||
|
|
wcscat( FlatName, L"$" );
|
||
|
|
}
|
||
|
|
|
||
|
|
NetStatus = DsBindW( NULL, Domain, &hDs );
|
||
|
|
|
||
|
|
if ( NetStatus != 0 ) {
|
||
|
|
printf("Failed to bind to DC of domain %ws, %#x\n",
|
||
|
|
Domain, NetStatus );
|
||
|
|
return FALSE ;
|
||
|
|
}
|
||
|
|
|
||
|
|
NetStatus = DsCrackNamesW(
|
||
|
|
hDs,
|
||
|
|
0,
|
||
|
|
DS_NT4_ACCOUNT_NAME,
|
||
|
|
DS_FQDN_1779_NAME,
|
||
|
|
1,
|
||
|
|
&Flat,
|
||
|
|
&Result );
|
||
|
|
|
||
|
|
if ( NetStatus != 0 ) {
|
||
|
|
printf("Failed to crack name %ws into the FQDN, %#x\n",
|
||
|
|
FlatName, NetStatus );
|
||
|
|
|
||
|
|
DsUnBind( &hDs );
|
||
|
|
|
||
|
|
return FALSE ;
|
||
|
|
} else {
|
||
|
|
DWORD i;
|
||
|
|
BOOL foundFailure = FALSE;
|
||
|
|
|
||
|
|
//
|
||
|
|
// check the stat-i inside the struct
|
||
|
|
//
|
||
|
|
for ( i = 0; i < Result->cItems; ++i ) {
|
||
|
|
if ( Result->rItems[i].status == DS_NAME_NO_ERROR ) {
|
||
|
|
printf("Found domain\\name '%ws\\%ws' for Flatname '%ws' \n",
|
||
|
|
Result->rItems[i].pDomain,
|
||
|
|
Result->rItems[i].pName,
|
||
|
|
FlatName);
|
||
|
|
} else {
|
||
|
|
printf("Couldn't crack name for '%ws' - %u\n",
|
||
|
|
FlatName, Result->rItems[i].status);
|
||
|
|
foundFailure = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( foundFailure ) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// add DnsHostName attribute to this object
|
||
|
|
//
|
||
|
|
NetStatus = AddDnsHostNameAttribute( hDs, Server, Domain );
|
||
|
|
if ( NetStatus != 0 ) {
|
||
|
|
printf( "Failed to add DnsHostName attrib to '%ws.%ws', %#x\n",
|
||
|
|
Server, Domain, NetStatus );
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// write the netbios based SPN
|
||
|
|
//
|
||
|
|
NetStatus = DsServerRegisterSpnW(
|
||
|
|
DS_SPN_ADD_SPN_OP,
|
||
|
|
L"HOST",
|
||
|
|
Result->rItems[0].pName);
|
||
|
|
|
||
|
|
if ( NetStatus != 0 ) {
|
||
|
|
printf("DsServerRegisterSpn Failed to assign SPN to '%ws', %#x\n",
|
||
|
|
Result->rItems[0].pName, NetStatus );
|
||
|
|
}
|
||
|
|
|
||
|
|
NetStatus = DsWriteAccountSpnW(
|
||
|
|
hDs,
|
||
|
|
DS_SPN_ADD_SPN_OP,
|
||
|
|
Result->rItems[0].pName,
|
||
|
|
1,
|
||
|
|
&Spn );
|
||
|
|
|
||
|
|
|
||
|
|
if ( NetStatus != 0 ) {
|
||
|
|
printf("Failed to assign SPN '%ws' to account '%ws', %#x\n",
|
||
|
|
HostSpn, Result->rItems[0].pName, NetStatus );
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
DWORD i;
|
||
|
|
BOOL foundFailure = FALSE;
|
||
|
|
|
||
|
|
//
|
||
|
|
// check the stat-i inside the struct
|
||
|
|
//
|
||
|
|
for ( i = 0; i < Result->cItems; ++i ) {
|
||
|
|
if ( Result->rItems[i].status == DS_NAME_NO_ERROR ) {
|
||
|
|
printf("Assigned SPN '%ws' to account '%ws' \n",
|
||
|
|
HostSpn, Result->rItems[i].pName );
|
||
|
|
} else {
|
||
|
|
printf("WriteAccountSpn failed for '%ws' - %u\n",
|
||
|
|
HostSpn, Result->rItems[i].status);
|
||
|
|
foundFailure = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( foundFailure ) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// do it again with the DNS domain as well
|
||
|
|
//
|
||
|
|
wcscat( HostSpn, L"." );
|
||
|
|
wcscat( HostSpn, Domain );
|
||
|
|
|
||
|
|
NetStatus = DsWriteAccountSpnW(hDs,
|
||
|
|
DS_SPN_ADD_SPN_OP,
|
||
|
|
Result->rItems[0].pName,
|
||
|
|
1,
|
||
|
|
&Spn );
|
||
|
|
|
||
|
|
|
||
|
|
if ( NetStatus != 0 ) {
|
||
|
|
printf("Failed to assign SPN '%ws' to account '%ws', %#x\n",
|
||
|
|
HostSpn, Result->rItems[0].pName, NetStatus );
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
DWORD i;
|
||
|
|
BOOL foundFailure = FALSE;
|
||
|
|
|
||
|
|
//
|
||
|
|
// check the stat-i inside the struct
|
||
|
|
//
|
||
|
|
for ( i = 0; i < Result->cItems; ++i ) {
|
||
|
|
if ( Result->rItems[i].status == DS_NAME_NO_ERROR ) {
|
||
|
|
printf("Assigned SPN '%ws' to account '%ws' \n",
|
||
|
|
HostSpn, Result->rItems[i].pName );
|
||
|
|
} else {
|
||
|
|
printf("WriteAccountSpn failed for '%ws' - %u\n",
|
||
|
|
HostSpn, Result->rItems[i].status);
|
||
|
|
foundFailure = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( foundFailure ) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
DsFreeNameResultW( Result );
|
||
|
|
|
||
|
|
DsUnBind( &hDs );
|
||
|
|
|
||
|
|
|
||
|
|
return NetStatus == 0 ;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void __cdecl wmain (int argc, wchar_t *argv[])
|
||
|
|
{
|
||
|
|
|
||
|
|
PWCHAR machineName;
|
||
|
|
|
||
|
|
if ( argc < 2 ) {
|
||
|
|
printf("usage: %s [-$] machinename\n", argv[0] );
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( argv[1][0] == '-') {
|
||
|
|
switch (argv[1][1]) {
|
||
|
|
case '$':
|
||
|
|
AddDollar = FALSE ;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
printf(" unrecognized option, '%s'\n", argv[1] );
|
||
|
|
exit(0);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
machineName = argv[2];
|
||
|
|
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
machineName = argv[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
if ( AddHostSpn( machineName ) ) {
|
||
|
|
printf("Updated object\n" );
|
||
|
|
}
|
||
|
|
}
|