SMB export

[FransUrbo]

Most of this was done in #190, but the final bit will (probably) require hacking/patching samba.

This ticket is just here as a reminder. If there's any comments on how to proceed, feel free to add comments.

[FransUrbo]

My initial idea is to do this similar to my iSCSI export patching which is using 'ietadm'. A 'smbadm' to add, remove, modify shares would be somewhat easy to do. If it haven't already, haven't had time to check :)

[FransUrbo]

Actually, it looks like it's a lot easier than that!

See the smb.conf(5) for the following options:

    add share command
    delete share command
    change share command

In (at least) samba version 3.3.3, there is two sample scripts for this. One in perl and one in python.

./examples/scripts/shares/perl/modify_samba_config.pl
./examples/scripts/shares/python/modify_samba_config.py

For me, I choosed the perl script. But I had to modify it slightly, because I didn't want it to rewrite my smb.conf completly (I have separate files with shares that is included from smb.conf which the perl script does not take into account). The change was only:

$ARGV[0] = "/etc/samba/shares.conf-dynamic";

just before the original line that read:

open (CONFIGFILE, "$ARGV[0]") || die "Unable to open $ARGV[0] for reading!\n";

I.e., I force it to use my own config file (which started out as empty) which is already included from smb.conf.

Then, to add a share I executed:

net -U root share add Test1=/share/Test

E, voila! I'll see what I can do about this in ZFS.

[FransUrbo]

... and to remove a share:

net -U root share delete test1

[behlendorf]

Nice, if you can integrate this with the libshare for zfs it sounds like a reasonable solution.

[FransUrbo]

That was the plan. already started.
A really good implementation would probably be to use the samba API, but for now it's probably simpler just calling the commands...