Tuesday, September 20, 2005

I tried installing the Samba server mod for IPCop today, but didn't have much luck.

I got it from here.

After I installed the mod server, and then manually installed the smb mod, I found that I had broken the web interface to IPCop.

I had a look in index.cgi, to see what the install of the mod had done, and I noticed a reference to debugging in the top, so I uncommented the following line:

use CGI::Carp 'fatalsToBrowser';

After refreshing the page, I got the following error:

Global symbol "%tr" requires explicit package name at /var/ipcop/header.pl line 97.

I had a look at the header.pl file, and changed line 97 from:

[ $tr{'samba'} , '/cgi-bin/samba.cgi', "IPCop $tr{'Samba'}" ],


[ $Lang::tr{'samba'} , '/cgi-bin/samba.cgi', "IPCop $Lang::tr{'Samba'}" ],

Now I had a new option in the Services menu, "Samba File Service".

I clicked on that, and I got a cgi error, so I went back an did the same as before, to enable the debugging.

The line wasn't in samba.cgi by default, so I had to add:

use CGI::Carp 'fatalsToBrowser';

Now I'm getting somewhere, I get the error:

Undefined subroutine &main::readhash called at /home/httpd/cgi-bin/samba.cgi line 21.

Hmm, what's this "readhash"? there are 2 references to it in the file, and it looks like it reads config files.

I did a quick google, and I turned up this page, with the source of the readhash function, so I copied it, and pasted in to end of samba.cgi.

I had another go at viewing the page, and I got the error:

Undefined subroutine &main::GetFileLock called at /home/httpd/cgi-bin/samba.cgi line 122.

I figured I could do without file locking, so I just commented out line 122, then I got:

Undefined subroutine &main::ReleaseFileLock called at /home/httpd/cgi-bin/samba.cgi line 139.

Since I didn't lock it, I figured I didn't need to unlock it, so I just commented out line 139.

Now I got:

Error in subroutine readhash: Can't open /ethernet/settings: No such file or directory at /home/httpd/cgi-bin/samba.cgi line 140.

Hmm, it seems that something is not right here, why is it looking in /ethernet? I doubt there is a subdirectory off root of /ethernet. I had a look in a couple of other files, and I saw other files using the readhash call etc, so it must work, and there must be something dumb breaking the samba file.

I removed the readhash subroutine again. That got me back to the original error:

Undefined subroutine &main::readhash called at /home/httpd/cgi-bin/samba.cgi line 21.

I compared the samba.cgi file with the vpn config cgi file, and started to suss out what was wrong.

I decided to change:
&readhash("${swroot}/ethernet/settings", \%netsettings);


&readhash("${General::swroot}/ethernet/settings", \%netsettings);

but I was still getting:

Undefined subroutine &main::readhash called at /home/httpd/cgi-bin/samba.cgi line 21.

I noticed a couple of other lines different in the source files, and tried replacing:
require '/var/ipcop/header.pl';

with the version from the vpn file:

require "${General::swroot}/header.pl";

But now it was looking for /header.pl. Hmm, it seems that the "swroot" variable is not being evaluted properly. I might be on to something here, since this would explain the /ethernet call from before.

I added in:

require '/var/ipcop/general-functions.pl';

Above the other line, and then I changed line 21, from:

&readhash("${General::swroot}/ethernet/settings", \%netsettings);


&General::readhash("${General::swroot}/ethernet/settings", \%netsettings);

That seemed to work, but now I got:

Undefined subroutine &main::showhttpheaders called at /home/httpd/cgi-bin/samba.cgi line 25.

I had another look, and compared with the vpn file, and decided to change:




I got a bit further:

Undefined subroutine &main::getcgihash called at /home/httpd/cgi-bin/samba.cgi line 29.

so I changed:

&getcgihash(\%sambasettings, {'wantfile' => 1, 'filevar' => 'FH'});


&Header::getcgihash(\%sambasettings, {'wantfile' => 1, 'filevar' => 'FH'});

Which resulted in:

Undefined subroutine &main::writehash called at /home/httpd/cgi-bin/samba.cgi line 33.

so I changed:

&writehash("${swroot}/samba/settings", \%sambasettings);


&General::writehash("${swroot}/samba/settings", \%sambasettings);

And now I got a new error:

Unable to write file /samba/settings at /var/ipcop/general-functions.pl line 75.

oops, I see what the problem is, let's try again, and change the line to:

&General::writehash("${General::swroot}/samba/settings", \%sambasettings);

Now I got:

Can't open file: No such file or directory at /home/httpd/cgi-bin/samba.cgi line 37.

It looked like I needed to change:

open(OUTFILE, ">${swroot}/samba/smb.conf") or die "Can't open file: $!";


open(OUTFILE, ">${General::swroot}/samba/smb.conf") or die "Can't open file: $!";

This got me a bit further, and it took a second, so I thought it was going to work, but then:

Can't open '/samba/smb.conf': No such file or directory at /home/httpd/cgi-bin/samba.cgi line 52.

Damn. Let me guess, another "General::" missing, from line 52..
Nope.. it's actually missing from line 51..

my $file = shift || "${swroot}/samba/smb.conf";

which I changed to:

my $file = shift || "${General::swroot}/samba/smb.conf";

Now I got:

Can't open '/samba/smb.conf': No such file or directory at /home/httpd/cgi-bin/samba.cgi line 58.

Another problem, this time line 58? nope, it's the same as 52, where the problem was before it. This time I found the line with the problem was line 55, which was exactly the same as 51, so I just replaced 55 with the fixed line 51.

I don't know why it's declared twice, that doesn't make sense to me, but then I'm not a perl programmer, so who knows.

Now I got:

Undefined subroutine &main::readhash called at /home/httpd/cgi-bin/samba.cgi line 63.

so I replaced the line:

&readhash("${swroot}/samba/settings", \%sambasettings);


&General::readhash("${General::swroot}/samba/settings", \%sambasettings);

Now I got a bit further..

Undefined subroutine &main::openpage called at /home/httpd/cgi-bin/samba.cgi line 69.

and I found another line requiring fixing..

&openpage($tr{'samba'}, 1, '');

changed to:

&Header::openpage($Lang::tr{'samba'}, 1, '');

now the page starts to render properly, and I get the bars across the top, but still get:

Undefined subroutine &main::openbigbox called at /home/httpd/cgi-bin/samba.cgi line 71.

I found that I had to change the line:

&openbigbox('100%', 'left');


&Header::openbigbox('100%', 'left');

This now got marginally further, but:

Undefined subroutine &main::openbox called at /home/httpd/cgi-bin/samba.cgi line 80.

Gees, this is getting tedious.

I replaced:

&openbox('100%', 'left', $tr{'samba'});


&Header::openbox('100%', 'left', $Lang::tr{'samba'});

Now it looks like I'm getting close, I get a big text box rendered, but still get errors:

Undefined subroutine &main::closebox called at /home/httpd/cgi-bin/samba.cgi line 110.

I changed:




and before seeing more errors, I decided to change the next couple of lines, from:




Now I was getting no errors, but the text box was still empty, and the check box and button at the top had no text labels.

At this point, I decided to replace all reference to $tr with $Lang::tr, and all ${swroot} with ${General::swroot}, openbox/closebox Header etc, which still achieved nothing.

I then found that the smb.conf was empty for some reason. I backed up my modified cgi file, and reinstalled the package again, (because I was too lazy to just extract the tarball, and copy the smb.conf file.

I tried again, and was back to the old error in header.pl, oops, forgot that would get overwritten. I fixed that again, but the text box was still blank, and smb.conf was trashed again.

I decided to untar the samba install, and copy the config file across manually. This got me:

Can't open file: Permission denied at /home/httpd/cgi-bin/samba.cgi line 37.

oops, it belongs to root now, so I chown'd the file.. and tried again.. and it immediately got trashed.

I gaveup, after all that.

I while later, I decided to have another look. I noticed an "addons" tab in the IPCop web interface, so I tried to use it to install samba, but got:

This is not an authorized addon, or your addon list is out of date.

The addons list is 1 second old, so I doubt that's the problem.

I gave up again.

A couple of hours later, I decided to see if I could just get samba running, without bothering with the web interface.

I edited the config file manually, and then when I tried to use the restartsamba binary, it wouldn't do anything.

If I started smbd/nmbd manually, restartsamba would kill them, and not respawn them.

I had a look at the web interface source, and saw that when starting samba, it would touch /var/ipcop/samba/enable, so I did that manually, and use restartsamba, which this time started.

I'd configured it to run as a WINS server (the main reason I installed it, because netbios broadcast noise doesn't traverse subnets, and MS networking doesn't work properly.

I couldn't connect to any shares running off it though, which was weird.

No matter what fiddling I did in the config file, related to what interfaces it was listening on, and what IP ranges were allowed to connect, I still couldn't connect.

I wondered if I needed a user account to authenticate with, so I tried adding an account, but found that smbpassword needed it to exist as a system account first, do I added it to ipcop, and set an smbpassword, restarted samba, but still coudln't connect.


Eventually I found that I could connect from the IPCop box, to itself, whether through the loopback interface, or the proper interfaces, but not from any remote host.

I dunno what's going on there. I have connectivity to the box remotely, I can connect to port 139 with nmbd running on it, but it just won't talk, and I get:

read_socket_with_timeout: timeout read. read error = Connection reset by peer.
protocol negotiation failed

I decided to try to install a newer samba version manually, since this package is version 2.2, and I have 3 on my laptop.

I copied across smbd and nmbd, and then found that I needed a bunch of libraries, which I scp'd across, one at a time, copied them into /usr/lib and tried again, until I ended up with:

./nmbd: /lib/libc.so.6: version `GLIBC_2.3.4' not found (required by /usr/lib/libkrb5.so.3)

So now I well and truly give up. No samba on an IPCop machine, at least not without me going insane.


Anonymous Anonymous said...

gee, thats all?
you give up already?
shame shame :P

3:21 am  

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