Would this allow us to leave multiple pipes open?

What I'm working on... is using RabbitMQ for input/output and having a single
Input-queue and multiple-output queues  (e.g. automation queue, 
notification-queue, incident-queue).



-----Original Message-----
From: Risto Vaarandi [mailto:risto.vaara...@seb.ee]
Sent: Wednesday, February 06, 2013 9:38 AM
To: Simple-evcorr-users
Subject: [Simple-evcorr-users] extending output types

hi all,

as you know, currently there are number of outputs which are not
directly supported by sec. For example, with 'pipe' action one can feed
only one event to an external program (with most programs exiting after
the 'pipe' action closes the pipe). Also, the 'write' action opens a
given file before each access and closes it afterwards. While this makes
output file rotation worry-free, it is not very efficient. Finally, sec
does not directly support various sockets as output (for example, it is
not possible to connect directly to a syslog server on another host and
issue syslog events without any intermediaries).

Therefore, would there be any interest to an output action which would
leave the output open/running/connected, so that the next access of the
same output would not have to do reopen/restart/connect again? This
action would have to support a number of output types, e.g.,

write2 udp myserver:514 This is my event
write2 tcp myserver:514 Another event
write2 file /var/log/myevents Third event
write2 program /bin/logger -p user.notice Fourth event

It is probably easy to see that with sockets and files it is not that
hard to distinguish them from each other, since the filename or server
name plus port number can serve as unique identifiers. With command
lines, however, it is somewhat more difficult, since an extra space or
different ordering of options makes two command lines different, even if
their effect is exactly the same. Also, since sec uses positional
parameters, there is an issue with parsing, although this could be
solved with the use of (). In addition, one workaround for both issues
would be storing command line in an action list variable.
The action outlines above would also need an output rotation mechanism,
but this could be implemented with adding this to SIGUSR2 handler
(closing all currently open outputs).

Would the action above be of interest, and are there any other ideas for
handling these situations?

kind regards,
risto

------------------------------------------------------------------------------
Free Next-Gen Firewall Hardware Offer
Buy your Sophos next-gen firewall before the end March 2013
and get the hardware for free! Learn more.
http://p.sf.net/sfu/sophos-d2d-feb
_______________________________________________
Simple-evcorr-users mailing list
Simple-evcorr-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/simple-evcorr-users

------------------------------------------------------------------------------
Free Next-Gen Firewall Hardware Offer
Buy your Sophos next-gen firewall before the end March 2013 
and get the hardware for free! Learn more.
http://p.sf.net/sfu/sophos-d2d-feb
_______________________________________________
Simple-evcorr-users mailing list
Simple-evcorr-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/simple-evcorr-users

Reply via email to