[Samba] Re: Different printer drivers ...

[Gerald (Jerry) Carter]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Sorry.  Am a bit behond on email lately, and haven't entirely
following this thread.

I've spent a fair amount in printing and I really don't think
that your analysis in entirely logical based on the comments
below.  You really need to look at the SPOOLSS MS-RPC traffic.
I don't know if this is your case, but the MS drivers are
extremely thin while vendor drivers (particularly PCL tend to
be very chatty).




cheers, jerry

ccaldwell at suscom-maine.net wrote:
> Greetings,
> 
> (Brief synopsis):
> 
> | This is an extenuation of "Non-registry problem:  Slow printing"
> |
> | See:
> |   http://www.brightsands.com/~chris/quick.9.bz2 fast printer drivers loglvl=9
> |   http://www.brightsands.com/~chris/slow.9.bz2  slow printer drivers loglvl=9
> |   http://www.brightsands.com/~chris/smb.conf    the smb.conf in use
> |
> | I have a sample Windows XP/SP2 client trying to print through a
> | samba-3.0.24 server as configured in the smb.conf above.  When I configure
> | with a Microsoft driver (AGFA-Accuset v52.3), I can add and select the
> | printer quickly (see quick.9.bz2).
> |
> | When I configure with a non Microsoft Driver (HP LaserJet 2420 PCL5e), adding
> | and selecting the printer take up to 30 seconds longer than the other driver.
> |
> | (after taking acount of different pids and pnums), when I diff quick.9 and
> | and slow.9, I notice things start to get funky at around line 322511:
> 
> With the fast driver, smb gets a size=102 packet and has this reaction:
> 
>     smbd/process.c:switch_message(914)
>       switch message SMBntcreateX (PID) conn 0x80a11498
>     smbd/uid.c:change_to_user(170)
>       change_to_user: Skipping user change - already user
>     smbd/nttrans.c:nt_open_pipe(325)
>       nt_open_pipe: Opening pipe \spoolss.
>     smbd/error.c:error_packet(146)
>       error packet at smbd/nttrans.c(330) cmd=162 (SMBntcreateX) \
> 	NT_STATUS_OBJECT_NAME_NOT_FOUND
> 
> Where as with the slow driver, smb gets a size=274 packet and says:
> 
>     smbd/process.c:switch_message(914)
>       switch message SMBsesssetupX (PID) conn 0x0
>     smbd/sec_ctx.c:set_sec_ctx(241)
>       setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
>     auth/auth_util.c:debug_nt_user_token(448)
>       NT user token: (NULL)
>     auth/auth_util.c:debug_unix_user_token(474)
>       UNIX token of user 0
>       Primary group is 0 and contains 0 supplementary groups
>     smbd/uid.c:change_to_root_user(275)
>       change_to_root_user: now uid=(0,0) gid=(0,0)
>     smbd/sesssetup.c:reply_sesssetup_and_X(849)
>       wct=13 flg2=0xc807
>     smbd/sesssetup.c:reply_sesssetup_and_X(995)
>       Domain=[CLIENT]  NativeOS=[Windows 2002 Service Pack 2 2600] \
> 	NativeLanMan=[Windows 2002 5.1] PrimaryDomain=[]
>     smbd/sesssetup.c:reply_sesssetup_and_X(1010)
>       sesssetupX:name=[CLIENT]\[Chris]@[CLIENT_IP]
>     param/loadparm.c:lp_file_list_changed(3048)
>       lp_file_list_changed()
>       file /etc/samba/smb.conf -> /etc/samba/smb.conf  last mod_time: \
> 	Tue Nov 20 12:46:55 2007
> 
> That's right:  The FAST one (from Microsoft) is getting the error while
> the slow one is trying to authenticate me as a user rather than as guest.
> Eventually it comes to the conclusion that that won't work and tries guest
> and that works.
> 
> The next packet from the fast one is 100 bytes and gets this:
>     smbd/process.c:switch_message(914)
>       switch message SMBntcreateX (PID) conn 0x80a11498
>     smbd/uid.c:change_to_user(170)
>       change_to_user: Skipping user change - already user
>     smbd/nttrans.c:nt_open_pipe(325)
>       nt_open_pipe: Opening pipe \srvsvc.
>     smbd/nttrans.c:nt_open_pipe(346)
>       nt_open_pipe: Known pipe srvsvc opening.
>     rpc_server/srv_pipe_hnd.c:open_rpc_pipe_p(187)
>       Open pipe requested srvsvc (pipes_open=0)
>     rpc_server/srv_pipe_hnd.c:make_internal_rpc_pipe_p(305)
>       Create pipe requested srvsvc
>     rpc_server/srv_pipe_hnd.c:make_internal_rpc_pipe_p(386)
>       Created internal pipe srvsvc (pipes_open=0)
>     rpc_server/srv_pipe_hnd.c:open_rpc_pipe_p(283)
>       Opened pipe srvsvc with handle HANDLE (pipes_open=1)
>     rpc_server/srv_pipe_hnd.c:open_rpc_pipe_p(289)
>       open pipes: name srvsvc PNUM
>     smbd/nttrans.c:do_ntcreate_pipe_open(395)
>       do_ntcreate_pipe_open: open pipe = \srvsvc
> 
> So ... I guess I'm wondering whose I idea it was to ignore the
> "auth methods = guest" line in smb.conf?  Samba or the client?  Does
> the client even ask which methods of authentication are possible?
> 
> --Chris


- --
=====================================================================
Samba                                    ------- http://www.samba.org
Centeris                         -----------  http://www.centeris.com
"What man is a man who does not make the world better?"      --Balian
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.2 (Darwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFHTCtaIR7qMdg1EfYRAmwZAKCwlqsF2cEuToBEWT5aSpfrmNfkGACgjgKN
Gn8FD+r5NPcNqMSh5XbXvwA=
=l9aa
-----END PGP SIGNATURE-----