Re: [Clamav-users] feature request for clam (STREAM mode)

2003-08-18 Thread Stefan Kaltenbrunner
Tomasz Kojm wrote:

On Sun, 17 Aug 2003 19:38:10 +0200
Arkadiusz Miskiewicz [EMAIL PROTECTED] wrote:
 

Hi,

STREAM support is long awaited feature by me. Unfortunately it seems
badly designed.
   

The idea of the protocol is based on OpenAntiVirus ScannerDaemon's POST
command, with some enhancements.
 

Current protocol is:
- connect with default clamav port (command connection)
- send STREAM uppercase
- clamd returns port number
- we connect with that number and send data to be scanned there (data 
connection)
   

That's it.

 

Problems are:
- if we want to scan few files we need to connect to reconnect to
command connection every time, too - why? Why no multiple STREAM
commands allowed?
   

Do you mean STREAM should support an optional argument for a number of
sockets clamd should start waiting on ? No problem.
 

- data port is random so I need to open all ports on my firewall which
is very 
   

This problem has been already reported a few days ago. The port number
range will be configurable in clamav.conf.
 

sad. Instead of this it would be great if I could send data over
,,command connection'' and don't use ,,data connection'' at all.
   

Oh, I don't think this is a good idea - it will make the command socket
a bottleneck because a scan process for may be long and we can't depend
on the backlog argument of the listen() function due to portability
reasons. 

I really, really dislike this solution which reminds me in some way to 
the (br0ken) ftp-protocol. A solution like this make any kind of 
loadbalancing(using a standard TCP balancing solution) nearly 
impossible. Any chance that this design could be changed to using a 
single TCP-Port. This would allow use to loadbalance/failover clamd 
easily between a large number of hosts (just like it's possible with 
spamd from the spamassassin package today).

Stefan



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Re: [Clamav-users] feature request for clam (STREAM mode)

2003-08-18 Thread Nigel Horne
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Shouldn't this be on the developers list, not here?

- -Nigel

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RE: [Clamav-users] Still Fighting Problem with clamd bombing out on Openbsd 3.3 w amavisd-new and postfix

2003-08-18 Thread Lynn Duerksen
I finally got a ktrace trap as well.

 13403 clamdGIO   fd 6 read 16 bytes
   17433d48097703e9
 13403 clamdRET   read 8192/0x2000
 13403 clamdPSIG  SIGSEGV SIG_DFL code 2 addr=0x38383263 trapno=2
 13403 clamdPSIG  SIGSEGV SIG_DFL code 0 addr=0x0 trapno=0
 13403 clamdNAMI  clamd.core

Is there anyone who can decifer these traces and tell me what it means?


 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED] On Behalf 
 Of Ben Hooper
 Sent: Saturday, August 16, 2003 2:43 AM
 To: [EMAIL PROTECTED]
 Subject: RE: [Clamav-users] Still Fighting Problem with clamd 
 bombing out on Openbsd 3.3 w amavisd-new and postfix
 
 
   If anyone has any suggestions I would love the help.   I have two
   installs doing the exact same thing.  So if I made a mistake
   in my setup
   I made it more than once.
  
  FWIW, I am seeing the same thing happen under 3.3-stable on 
 two of my 
  machines.
 
 Ktrace shows clamd bombing out with...
 
  26027 clamdRET   read 557/0x22d
  26027 clamdPSIG  SIGSEGV SIG_DFL code 1 addr=0x3033343d trapno=1
  26027 clamdPSIG  SIGSEGV SIG_DFL code 0 addr=0x0 trapno=0
 
 Complete trace avaliable.
 
 Ben.
 
 
 
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Re: [Clamav-users] Still Fighting Problem with clamd bombing out on Openbsd 3.3 w amavisd-new and postfix

2003-08-18 Thread Tomasz Papszun
On Fri, 15 Aug 2003 at 17:21:22 -0500, Lynn Duerksen wrote:
 Was wondering if anyone had any more suggestions.
 
 At this point I would even accept a script that would run from crontab
 to check if clamd is running.  If not start it up again.
 
 I tried the script below and works well from a command line but not from
 crontab.  It starts multiple clamd daemons.
 
 
 
 #!/bin/sh
 exec 1/var/log/messages
 exec 21
 TIMESTAMP=`date +%b %e %H:%M:%S`
 # check for clamd daemon
 if skill -n clamd
 then
 echo $TIMESTAMP  clamd is running
 else
 echo $TIMESTAMP  restarting clamd daemon
 rm /var/amavisd/clamd.sock
 chroot -u amavisd /var/amavisd /usr/sbin/clamd
 fi
 
 ***

[ I'm omitting the rest of your message because I don't use OpenBSD and
don't know its chroot synopsis, so I've got nothing to comment on it. ]

Lynn, what do you mean saying It starts multiple clamd daemons?
Isn't this, by chance, the normal clamd behaviour, like in:

14528 ?S  0:03 /usr/sbin/clamd
14529 ?S  0:14 /usr/sbin/clamd
14530 ?S  0:24 /usr/sbin/clamd

There are multiple (3) processes (or maybe threads) and it's normal.

Sorry if I'm asking obvious questions.

-- 
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 [EMAIL PROTECTED]   http://www.lodz.tpsa.pl/   | ones and zeros.


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RE: [Clamav-users] Still Fighting Problem with clamd bombing out on Openbsd 3.3 w amavisd-new and postfix

2003-08-18 Thread Lynn Duerksen
 
 Tomasz Kojm asked for core file :-) .

I assume the list does not want a 12MB core dump file so I will forward
it directly to Tomasz.

It took me some time to figure out where the file was stored.  It ended
up in the root of chroot jail not the clamd working directory.
 
 PS. Please, respond _under_ the original (previous) 
 message(s), not above them. This is basics of Netiquette.

Not sure I follow this.  How does one reference comments by others if I
reply to the original message?

 
 Also, remove unneeded fragments of previous message(s), 
 especially these awful commercials by SF. It's really ugly, 
 space-wasting and hard-answerable to have all that junk 
 nested a couple of times. Thank you.
 

Sorry about the junk, just lazy in my haste.


L. A. Duerksen
Technical Manager
Futureware Distributing, Inc
OpenBSD 3.3
amavisd-new-20030616-p2
spamassassin 2.55
postfix-2.0.10
ClamAV version 0.60



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RE: [Clamav-users] Still Fighting Problem with clamd bombing out on Openbsd 3.3 w amavisd-new and postfix

2003-08-18 Thread Lynn Duerksen


 From: [EMAIL PROTECTED] 
 
 Oh, seems that you already tried to mail it to me and of 
 course my server rejected it. Lynn, if you haven't an easy 
 way of placing it on the WWW, drop me a note and I'll 
 increase the message size limit temporarily.

Your wish is my command.

I have placed the clamd.core file at
http://www.futurewareinc.com/download/clamd.core 

Any help would be appreciate.

Thanks


L. A. Duerksen
Technical Manager
Futureware Distributing, Inc
OpenBSD 3.3
amavisd-new-20030616-p2
spamassassin 2.55
postfix-2.0.10
ClamAV version 0.60



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Re: [Clamav-users] Still Fighting Problem with clamd bombing out on Openbsd 3.3 w amavisd-new and postfix

2003-08-18 Thread Tomasz Kojm
On Mon, 18 Aug 2003 18:08:25 +0200
Tomasz Papszun [EMAIL PROTECTED] wrote:

 Isn't this, by chance, the normal clamd behaviour, like in:
 
 14528 ?S  0:03 /usr/sbin/clamd
 14529 ?S  0:14 /usr/sbin/clamd
 14530 ?S  0:24 /usr/sbin/clamd
 
 There are multiple (3) processes (or maybe threads) and it's normal.

In most systems only a one clamd process is visible. LinuxThreads are
process based, that's why you can see the threads in the process list.
I'm not sure, but this feature will (probably) disappear in the new
kernel.

Best regards,
Tomasz Kojm
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