summaryrefslogtreecommitdiff
path: root/package/iptables/files/l7/irc.pat
diff options
context:
space:
mode:
Diffstat (limited to 'package/iptables/files/l7/irc.pat')
-rw-r--r--package/iptables/files/l7/irc.pat20
1 files changed, 20 insertions, 0 deletions
diff --git a/package/iptables/files/l7/irc.pat b/package/iptables/files/l7/irc.pat
new file mode 100644
index 000000000..6643f6c2f
--- /dev/null
+++ b/package/iptables/files/l7/irc.pat
@@ -0,0 +1,20 @@
+# IRC - Internet Relay Chat - RFC 1459
+# Pattern quality: good veryfast
+#
+# 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. If it does not
+# work for you, or you believe it could be improved, please post to
+# l7-filter-developers@lists.sf.net . This list may be subscribed to at
+# http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
+
+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)
+