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openwrt-xburst/package/iptables/files/l7/irc.pat
pavlov 3b8c7ad8bb update stripped subset of l7 patterns to 11-03-2007 patterns
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9582 3c298f89-4303-0410-b956-a3cf2f4a3e73
2007-11-19 23:07:00 +00:00

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# IRC - Internet Relay Chat - RFC 1459
# Pattern attributes: great veryfast fast
# Protocol groups: chat ietf_proposed_standard
# Wiki: http://www.protocolinfo.org/wiki/IRC
#
# Usually runs on port 6666 or 6667
# Note that chat traffic runs on these ports, but IRC-DCC traffic (which
# can use much more bandwidth) uses a dynamically assigned port, so you
# must have the IRC connection tracking module in your kernel to classify
# this.
#
# This pattern has been tested and is believed to work well.
irc
# First thing that happens is that the client sends NICK and USER, in
# either order. This allows MIRC color codes (\x02-\x0d instead of
# \x09-\x0d).
^(nick[\x09-\x0d -~]*user[\x09-\x0d -~]*:|user[\x09-\x0d -~]*:[\x02-\x0d -~]*nick[\x09-\x0d -~]*\x0d\x0a)