Add protocol definitions needed by ipfw-classifyd. Basically they are copied from the ipfw-classifyd pfPort which inherits them from l7-filter project on sf.net.

1 files changed, 28 insertions, 0 deletions

diff --git a/usr/local/share/protocols/netbios.pat b/usr/local/share/protocols/netbios.pat
new file mode 100644
index 0000000..8e90074
--- /dev/null
+++ b/usr/local/share/protocols/netbios.pat
@@ -0,0 +1,28 @@
+# NetBIOS - Network Basic Input Output System
+# Pattern attributes: marginal notsofast notsofast
+# Protocol groups: networking ietf_internet_standard proprietary
+# Wiki: http://www.protocolinfo.org/wiki/NetBIOS
+#
+# As mentioned in smb.pat:
+#
+# "This protocol is sometimes also referred to as the Common Internet File 
+# System (CIFS), LanManager or NetBIOS protocol." -- "man samba"
+#
+# Actually, SMB is a higher level protocol than NetBIOS.  However, the 
+# NetBIOS header is only 4 bytes: not much to match on.
+#
+# http://www.ubiqx.org/cifs/SMB.html
+# See also RFCs 1001 and 1002.
+#
+# This pattern attempts to match the (Session layer) NetBIOS Session request. 
+# If sucessful, you may be able to match NetBIOS several packets earlier 
+# than if you just waited for the easier-to-match SMB header.
+#
+# This pattern is untested.
+
+netbios
+# session request byte, three bytes of flags and length.  Then 
+# there should be a big mess of letters between A and P which represent
+# the NetBIOS names of the involved computers (with a null between them).  
+# (40ish here, damn this regexp implementation and its lack of {40,})
+\x81.?.?.[A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P][A-P]