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Diffstat (limited to 'package/iptables/files/l7/gnutella.pat')
| -rw-r--r-- | package/iptables/files/l7/gnutella.pat | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/package/iptables/files/l7/gnutella.pat b/package/iptables/files/l7/gnutella.pat new file mode 100644 index 0000000..ebbd5c6 --- /dev/null +++ b/package/iptables/files/l7/gnutella.pat @@ -0,0 +1,36 @@ +# Gnutella - P2P filesharing +# Pattern quality: good fast +# +# This should match both Gnutella and "Gnutella2" ("Mike's protocol") +# +# Various clients use this protocol including Mactella, Shareaza, +# GTK-gnutella, Gnucleus, Gnotella, LimeWire, BearShare, and iMesh. +# +# This is tested with gtk-gnutella and Shareaza. +# +# Please report on how this pattern works for you at +# l7-filter-developers@lists.sf.net . If you can improve on this +# pattern, please also post to that list. You may subscribe at +# http://lists.sourceforge.net/lists/listinfo/l7-filter-developers + +# http://www.gnutella2.com/tiki-index.php?page=UDP%20Transceiver +# http://rfc-gnutella.sf.net/ +# http://www.gnutella2.com/tiki-index.php?page=Gnutella2%20Specification +# http://en.wikipedia.org/wiki/Shareaza + +gnutella + +# The first part matches UDP messages - All start with "GND", then have +# a flag byte which is either \x00, \x01 or \x02, then two sequence bytes +# that can be anything, then a fragment number, which must start at 1. +# The rest matches TCP first client message or first server message (in case +# we can't see client messages). Some parts of this are empirical rather than +# document based. Assumes version is between 0.0 and 2.9. (usually is +# 0.4 or 0.6). I'm guessing at many of the user-agents. +# The last bit is emprical and probably only matches Limewire. +^(gnd[\x01\x02]?.?.?\x01|gnutella connect/[012]\.[0-9]\x0d\x0a|get /uri-res/n2r\?urn:sha1:|get /.*user-agent: (gtk-gnutella|bearshare|mactella|gnucleus|gnotella|limewire|imesh)|get /.*content-type: application/x-gnutella-packets|giv [0-9]*:[0-9a-f]*/|queue [0-9a-f]* [1-9][0-9]?[0-9]?\.[1-9][0-9]?[0-9]?\.[1-9][0-9]?[0-9]?\.[1-9][0-9]?[0-9]?:[1-9][0-9]?[0-9]?[0-9]?|gnutella.*content-type: application/x-gnutella|..................lime) + +# Needlessly precise, at the expense of time +#^(gnd[\x01\x02]?.?.?\x01|gnutella connect/[012]\.[0-9]\x0d\x0a|get /uri-res/n2r\?urn:sha1:|get /[\x09-\x0d -~]*user-agent: (gtk-gnutella|bearshare|mactella|gnucleus|gnotella|limewire|imesh)|get /[\x09-\x0d -~]*content-type: application/x-gnutella-packets|giv [0-9]*:[0-9a-f]*/|queue [0-9a-f]* [1-9][0-9]?[0-9]?\.[1-9][0-9]?[0-9]?\.[1-9][0-9]?[0-9]?\.[1-9][0-9]?[0-9]?:[1-9][0-9]?[0-9]?[0-9]?|gnutella[\x09-\x0d -~]*content-type: application/x-gnutella|..................lime) + + |