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Registry-security: how to set in script file

Posted on 1997-06-05
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How to set the security permissions in the NT4.0 registry ?
I know only the way to manually edit them with REGEDT32. I need to change them within a batch file.
As far as I know there is no way (so don't give me this as an answer), but maybe someone knows better.
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Question by:cer
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Expert Comment

by:mirkus
ID: 1765975
With normal batch files you don't change any change to registry.
You can make a program that do this.
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Author Comment

by:cer
ID: 1765976
I CAN make changes using a batchfile (I mean it is possible on the command line). With REGEDIT I can change the contents of the registry, but not the security.
REGEDIT can be executed as a GUI application OR in a batchfile if you supply parameters.
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Expert Comment

by:jmj050997
ID: 1765977
The only way I found (and not yet fully tested) for such changes that cannot be done through batch files directly, is to use a scripting tool such as WinBatch or MsTest that can click and type for you. It works as the good old recorder, and you can launch a script from a batch file and wait for it to end:
In your batch file: START /WAIT MSTEST.EXE SCRIPT

I'm now trying to install a sound driver unattended using this method and it seems to work fine for such a simple case. Anyway, setting registry security might involve many mouse-clicks and is subject to a long recording&testing phase...

I just read a sentence from Bill Gates on ms web site: "Everything that can be done through the GUI can be automated using batch files or scripting languages..."

*LAUGH* He should have a look at his own products before speaking  or may be he was (again) talking about CAIRO ?????

JMJ

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by:cer
ID: 1765978
I think the macro way can not be done. If the registry changes, e.g. you get an additional branch in the tree, the macro would fail. Also this wouldn't run if there is no desktop, e.g. from an AUTOSTART.NT batch file.
I agree that there is no good scripting language in NT. Ther are mor trivial things that can not be set. Try to configure a new user with a batch file. You can sett all the password options and (most annoying) you can NOT set the driveletter for the home drive.

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Expert Comment

by:matz
ID: 1765979
Regini is your answer. REGINI is a very simple command line utility to add or replace registry entries. it is invoked as

regini scriptfile

where scriptfile is a file containing one or more registry keys, values, and data. They key is speciefied on a line by itself in the format registry\<key>.
You can find regini in NT resource kit and only there.

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by:cer
ID: 1765980
Sorry matz, but I don't understand.
Of course I know about REGINI, but how to set the security permissions with this program? I do NOT want to set a Registry-Key, I want to set the access-permissions for an existing key (as I asked for).
Am I wrong? Can REGINI perform this?

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matz earned 100 total points
ID: 1765981
Okey, try to write in Perl with API calls. I can give you som eexampels if you like. If you like c, c++ or Visual Basic better that will work to. But Perl is quit simple to do this small changes.
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by:cer
ID: 1765982
I do not have C or VB, I do have Perl which was supplied with the NT4.0 server resourcekit. I never wrote a perl-script so far. I even don't know how to use it. I have a PERL.EXE and a CMD32.EXE (and a PERL100.DLL).
I do not have a list of possible API-Calls (only Win16 supplied with Borland Pascal 7). Is there such a list on the Net?
If you could give me a Perl example it would be great.


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Expert Comment

by:matz
ID: 1765983
I will give an answer soon.
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Expert Comment

by:matz
ID: 1765984
SetValue
SetValue ($SubKey, $Type, $Value)
Here , $SubKEy holds the subkey name. $type speciefies the type of value that has been predefined. $Value contains the value to be set.
That's how it can be done in Perl or you can use API calls in Perl like this


NTRegCreateKeyEx( &HKEY_LOCAL_MACHINE, 'SOFTWARE\MyProg',
    &NULL, 'My Prog Name', &REG_OPTION_NON_VOLATILE, &KEY_ALL_ACCESS, &NULL,
    $hkey, $disposition ) ?
    &log( "Added key for My Prog NT Registry Database..\n" ):
    &gripe( "Couldn't add key for My Prog to NT Registry Database!!\n" );

if ( $disposition  == &REG_OPENED_EXISTING_KEY ) {
    &gripe( "Key exists already, modifying existing key...\n" );
}

NTRegSetValueEx( $hkey, 'BIN', &NULL, &REG_SZ, "$bindir" ) ?
    &log( "Adding $bindir to script path information\n" ):
    &gripe( "Couldn't add script path to registry!!\n" );

NTRegSetValueEx( $hkey, 'PRIVLIB', &NULL, &REG_SZ, "$libdir" ) ?
    &log( "Adding $libdir to library include path information\n" ):
    &gripe( "Couldn't add library path to registry!!\n" );

NTRegSetValueEx( $hkey, 'HTML-DOCS', &NULL, &REG_SZ, "$docdir" ) ?
    &log( "Adding $docdir to documentation directory\n" ) :
    &gripe( "Couldn't add documentation directory to registry!!\n" );

NTRegCloseKey( $hkey );

$fred = 'foo bar baz';

until ( $fred =~ /^(y|n)/i || $fred eq '' ) {
    print "Modify search path? [Y/n]";
    chop( $fred = <STDIN> );
}

unless ( $fred =~ /^n/i ) {
        if( Win32::IsWinNT() ){
            NTRegOpenKeyEx ( &HKEY_LOCAL_MACHINE,
                'SYSTEM\CurrentcontrolSet\control\Session Manager\Environment',
                &NULL, &KEY_ALL_ACCESS, $hkey ) ?
                &log( "Retrieving Path information from session manager\n" ):
                &gripe( "Couldn't retrieve path information from session manager!!\n" );
       
            NTRegQueryValueEx( $hkey, 'Path', &NULL, $type, $pathstring );
       
            $pathstring =
                ".;$bindir;" . join (';', grep(!/(perl|\.)/i, split(/;/, $pathstring))) . ";";
       
            NTRegSetValueEx( $hkey, 'Path', &NULL, $type, $pathstring ) ?
                &log( "Updated path information in session manager\n" ):
                &gripe( "Couldn't update path information in session manager!!\n" );
            NTRegCloseKey( $hkey );
        }
       else{ # must be win95, so update path in autoexec.bat
       
        &log("Attempting to change path in autoexec.bat");
        ( $bootdrive = $ENV{'windir'} ) =~ s|\\.*||g;
        &log( "bootdrive is $bootdrive\n");

        open( ABAT,">>$bootdrive\\autoexec.bat")||
                gripe( "Couldn't open $bootdrive\\autoexec.bat");

        print ABAT "path %path%;$bindir;\n";
        close ABAT;

       }

}

The API's to use are:
create extension key
RegCreateKeyEx ( HKEY_CLASSES_ROOT, ".mdc", 0, "",
                REG_OPTION_NON_VIOLATE, KEY_ALL_ACCESS,
                NULL, &hKeyExt, &dwDispositin );

RegCreateKeyEx syntax:
LONG RegCreateKeyEx( HKEY hkey, LPCTSTR lpszSubKey, DWORD dwReserved, LPSTR LpszClass, DWORD dwOptions, REGSAM samDesired, LPSECURITY_ATTRIBUTES lpSecurityAttributes, PHKEY phkResult, LPDWORD lpdwDisposition )

hKey key  under which new subkey is to be created.

LpszSubKey LPCTSTR:Pointer to a null-terminated string containing the name of the new subkey. If existing it will be opened

dwReserved: DWORD: Set this value to null.

lpszClass: LPSTR: Pointer to a null-terminated string containing the name of the new class to be created. If exist it will be ignored.

dwOptions: DWORD: Special storage option. REG_OPTION_BACKUP_RESTORE: samDesired parameters is ignored and the key is opened with the access requried.
REG_OPTION_VOLATILE. Data saved in memory and not saved to disk.
REG-OPTION_NON_VOLATILE: The data is not volatile but is svaed to disk.
samDesired:REGSAM:The desired security  access for the key. Can be a combination of
KEY_QUERY_VALUE, Allows subkeys values to be queried
KEY_ENUMERATE_SUBKEYS,Allows enumaration of subkeys
KEY_NOTIFY, , Enables change notification (not win95)
KEY_CREATE_LINK, Allows creation of symbolic links
KEY_SET_VALUE, Allows subkeys values to be written
KEY_CREATE_SUBKEY,
KEY_EXECUTE, allows execution
KEY_READ, mixes KEY_QUERY_VALUE and KEY_ENUMERATE_SUBKEYS and
                KEY_NOTIFY
KEY_WRITE.    mixes   KEY_SET_VALUE and   KEY_CREATE_SUBKEY        

 
LPSECURITY_ATTRIBUTES:The security attributes of the key.
specifying NULL indicates default security attributes. Default security attributes do not allow handles in one process to be inherited, the bInheritHandle member of the structure must be set to true. this parameter is ignored in Win95.

lpdwDisposition:LPDWORD: A pointer to a DWORD variabel that indicates whether the subkey was created. (REG_CREATED_NEW_KEY) or an existing subkey was opened (REG_OPENED_EXISTING_KEY).

Returns:LONG:If succeful. ERORR_SUCCESS is retirned;Otherwise, an errorr code is returned.


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Author Comment

by:cer
ID: 1765985
Thanx a lot for the information. It will take some time to get through :-))


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