NT_STATUS_BAD_NETWORK_NAME error
Ata E Husain Bohra
atahusain.b at gmail.com
Mon Sep 22 12:36:33 MDT 2014
Hi Richard,
I found the issue, it was because my module initialization was failing due
to a typo. Fixing that it works.
Thanks for your help.
Regards,
On Mon, Sep 22, 2014 at 7:37 AM, Richard Sharpe <realrichardsharpe at gmail.com
> wrote:
> On Mon, Sep 22, 2014 at 1:24 AM, Ata E Husain Bohra
> <atahusain.b at gmail.com> wrote:
> > Hi Richard,
> >
> > No, samba did not crash; I confirmed the smbd is running after issuing
> this
> > command. From logs I get these logs:
>
> What does smbstatus show?
>
> There should be more than one smbd running. Most likely the master
> smbd and one for printing if you have that enabled and one for each
> client that is connected. smbstatus will show the connected clients.
>
> The log portion you have shown looks like that for the master smbd not
> for your client. Based on your smb.conf there should be a log for the
> client in /var/log/samba called log.<client-netbios-or-IP>. That is
> where I would expect to see a SIGSEGV. The error message suggests that
> the connection dropped.
>
>
> > "
> > [2014/09/22 01:21:26.337619, 5, pid=24614, effective(0, 0), real(0, 0)]
> > ../lib/dbwrap/dbwrap.c:187(dbwrap_check_lock_order)
> > check lock order 2 for /usr/local/samba/var/lock/serverid.tdb
> > [2014/09/22 01:21:26.337722, 10, pid=24614, effective(0, 0), real(0, 0)]
> > ../lib/dbwrap/dbwrap.c:133(debug_lock_order)
> > lock order: 1:<none> 2:/usr/local/samba/var/lock/serverid.tdb 3:<none>
> > [2014/09/22 01:21:26.337777, 10, pid=24614, effective(0, 0), real(0, 0)]
> > ../lib/dbwrap/dbwrap_tdb.c:59(db_tdb_log_key)
> > Locking key 7C62000000000000FFFF
> > [2014/09/22 01:21:26.337838, 10, pid=24614, effective(0, 0), real(0, 0)]
> > ../lib/dbwrap/dbwrap_tdb.c:143(db_tdb_fetch_locked_internal)
> > Allocated locked data 0x0x7f28081cfd00
> > [2014/09/22 01:21:26.337910, 10, pid=24614, effective(0, 0), real(0, 0)]
> > ../lib/dbwrap/dbwrap_tdb.c:59(db_tdb_log_key)
> > Unlocking key 7C62000000000000FFFF
> > [2014/09/22 01:21:26.337958, 5, pid=24614, effective(0, 0), real(0, 0)]
> > ../lib/dbwrap/dbwrap.c:146(dbwrap_lock_order_state_destructor)
> > release lock order 2 for /usr/local/samba/var/lock/serverid.tdb
> > [2014/09/22 01:21:26.338000, 10, pid=24614, effective(0, 0), real(0, 0)]
> > ../lib/dbwrap/dbwrap.c:133(debug_lock_order)
> > lock order: 1:<none> 2:<none> 3:<none>
> > [2014/09/22 01:21:52.010722, 10, pid=24615, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:426(smbd_idle_event_handler)
> > smbd_idle_event_handler: idle_evt(print_queue_housekeeping) (nil)
> called
> > [2014/09/22 01:21:52.010947, 5, pid=24615, effective(0, 0), real(0, 0)]
> > ../source3/printing/queue_process.c:163(print_queue_housekeeping)
> > print queue housekeeping
> > [2014/09/22 01:21:52.011026, 10, pid=24615, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:437(smbd_idle_event_handler)
> > smbd_idle_event_handler: idle_evt(print_queue_housekeeping) (nil)
> > rescheduled
> > [2014/09/22 01:21:52.137529, 2, pid=24614, effective(0, 0), real(0, 0)]
> > ../source3/smbd/server.c:419(remove_child_pid)
> > Could not find child 25218 -- ignoring
> >
> > "
> >
> > On Sun, Sep 21, 2014 at 10:20 PM, Richard Sharpe
> > <realrichardsharpe at gmail.com> wrote:
> >>
> >> On Sun, Sep 21, 2014 at 9:59 PM, Ata E Husain Bohra
> >> <atahusain.b at gmail.com> wrote:
> >> > Hi All,
> >> >
> >> > I'm new to samba development; with the current assignment I want to
> trap
> >> > SAMBA calls by introducing a custom VFS module and pass it to a custom
> >> > library.
> >>
> >> Most likely your vfs module is crashing Samba. Do you see any messages
> >> about SEG Faults in /path/to/log.client name?
> >>
> >> Also, you can do the following. Add 'panic action = "/bin/sleep
> >> 99999"' to the smb.conf and then when you see the problem see if there
> >> is a process with sleep 99999 there.
> >>
> >> Also, since you have a level 10 log for the client, what does it show.
> >> Do you have any debug statements in your vfs module functions so you
> >> can be sure you are making it into those functions?
> >>
> >> > I've followed "Writing VFS module" by Richard and implemented a
> skeleton
> >> > vfs module. I hooked the module to the build process and can observe
> my
> >> > module getting compiled. For initial setup, I installed samba on a
> >> > Centos
> >> > 6.4 VM and exported a local directory (created under '/') as a share.
> >> > I'm
> >> > using "smbclient" to access the share ( access URL is
> //localhost/<name
> >> > of
> >> > share>), my smb.conf looks like:
> >> >
> >> > "
> >> > [global]
> >> > workgroup = CORP
> >> > server string = Samba Server Version %v
> >> > netbios name = <machine-name>
> >> >
> >> > ; netbios name = MYSERVER
> >> >
> >> > ; interfaces = lo eth0 192.168.12.2/24 192.168.13.2/24
> >> > hosts allow = 127. 192.168.108.0/22 10.8.0.0/16
> >> >
> >> > # logs split per machine
> >> > log file = /var/log/samba/log.%m
> >> > log level = 10
> >> > # max 50KB per log file, then rotate
> >> > max log size = 50
> >> >
> >> > security = user
> >> > map to guest = Bad Password
> >> > passdb backend = tdbsam
> >> >
> >> > load printers = no
> >> > cups options = raw
> >> >
> >> > [sample]
> >> > vfs objects = test
> >> > comment = Public Stuff
> >> > path = /share
> >> > public = yes
> >> > writable = yes
> >> > browseable = yes
> >> > printable = no
> >> > "
> >> >
> >> > If I do not use "vfs objects" line I am able to access the share with
> >> > below
> >> > command:
> >> > " smbclient //localhost/sample -Uroot "
> >> >
> >> > But when I try to enable it using my VFS module I get the following
> >> > error:
> >> >
> >> > "
> >> >> smbclient //localhost/sample -Uroot%Dobvus12
> >> > Domain=[CORP] OS=[Unix] Server=[Samba 4.1.12]
> >> > tree connect failed: NT_STATUS_BAD_NETWORK_NAME
> >> > "
> >> >
> >> > My share is visible to smbclient:
> >> >
> >> > "
> >> >> smbclient -L localhost
> >> >
> >> > Domain=[CORP] OS=[Unix] Server=[Samba 4.1.12]
> >> >
> >> > Sharename Type Comment
> >> > --------- ---- -------
> >> > IPC$ IPC IPC Service (Samba Server Version
> >> > 4.1.12)
> >> > *sample Disk Public Stuff
> >> > (this is the share)*
> >> > Domain=[CORP] OS=[Unix] Server=[Samba 4.1.12]
> >> >
> >> > Server Comment
> >> > --------- -------
> >> > xxxx Samba Server Version 4.1.12
> >> > xxxx Samba Server Version 4.1.12
> >> >
> >> > Workgroup Master
> >> > --------- -------
> >> > CORP xxx
> >> > "
> >> >
> >> > My machine configuration is Centos 6.5 (final): 2.6.32-431.el6.x86_64
> >> >
> >> > Access permission to /share is 0755 (drwxr-xr-x 4 root root 4096
> Sep
> >> > 21
> >> > 17:24 *share*). Can anyone suggest what am I missing here?
> >> >
> >> > Thanks,
> >>
> >>
> >>
> >> --
> >> Regards,
> >> Richard Sharpe
> >> (何以解憂？唯有杜康。--曹操)
> >
> >
> >
> >
> > --
> > Regards,
> > Ata
>
>
>
> --
> Regards,
> Richard Sharpe
> (何以解憂？唯有杜康。--曹操)
>
--
Regards,
Ata
More information about the samba-technical
mailing list