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Diffstat (limited to 'package/iptables/files/l7/msnmessenger.pat')
| -rw-r--r-- | package/iptables/files/l7/msnmessenger.pat | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/package/iptables/files/l7/msnmessenger.pat b/package/iptables/files/l7/msnmessenger.pat new file mode 100644 index 000000000..11dfc10be --- /dev/null +++ b/package/iptables/files/l7/msnmessenger.pat @@ -0,0 +1,28 @@ +# MSN Messenger - Microsoft Network chat client +# Pattern attributes: good slow notsofast +# Protocol groups: chat proprietary +# Wiki: http://www.protocolinfo.org/wiki/MSN_Messenger +# Copyright (C) 2008 Matthew Strait, Ethan Sommer; See ../LICENSE +# +# Usually uses TCP port 1863 +# http://www.hypothetic.org/docs/msn/index.php +# http://msnpiki.msnfanatic.com/ +# +# This pattern has been tested and is believed to work well. + +msnmessenger + +# First branch: login +# ver: allow versions up to 99. +# I've never seen a cvr other than cvr0. Maybe this will be trouble later? +# Can't anchor at the beginning because sometimes this is encapsulated in +# HTTP. But either way, the first packet ends like this. +# Second/Third branches: accepting/sending a message +# I will assume that these can also be encapsulated in HTTP, although I have +# not checked. Example of each direction: +# ANS 1 quadong@hotmail.com 1139803431.29427 17522047 +# USR 1 quadong@hotmail.com 530423708.968145.366138 + +# Branches are written entirely separately for better performance. +ver [0-9]+ msnp[1-9][0-9]? [\x09-\x0d -~]*cvr0\x0d\x0a$|usr 1 [!-~]+ [0-9. ]+\x0d\x0a$|ans 1 [!-~]+ [0-9. ]+\x0d\x0a$ + |