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, 27 insertions, 0 deletions

diff --git a/usr/local/share/protocols/http.pat b/usr/local/share/protocols/http.pat
new file mode 100644
index 0000000..550aa0b
--- /dev/null
+++ b/usr/local/share/protocols/http.pat
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+# HTTP - HyperText Transfer Protocol - RFC 2616
+# Pattern attributes: great slow notsofast superset
+# Protocol groups: document_retrieval ietf_draft_standard
+# Wiki: http://protocolinfo.org/wiki/HTTP
+#
+# Usually runs on port 80
+#
+# This pattern has been tested and is believed to work well.
+#
+# this intentionally catches the response from the server rather than
+# the request so that other protocols which use http (like kazaa) can be
+# caught based on specific http requests regardless of the ordering of
+# filters... also matches posts
+
+# Sites that serve really long cookies may break this by pushing the
+# server response too far away from the beginning of the connection. To
+# fix this, increase the kernel's data buffer length.
+
+http
+# Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF (rfc 2616)
+# As specified in rfc 2616 a status code is preceeded and followed by a
+# space. 
+http/(0\.9|1\.0|1\.1) [1-5][0-9][0-9] [\x09-\x0d -~]*(connection:|content-type:|content-length:|date:)|post [\x09-\x0d -~]* http/[01]\.[019]
+# A slightly faster version that might be good enough:
+#http/(0\.9|1\.0|1\.1) [1-5][0-9][0-9]|post [\x09-\x0d -~]* http/[01]\.[019]
+# old pattern(s):
+#(http[\x09-\x0d -~]*(200 ok|302 |304 )[\x09-\x0d -~]*(connection:|content-type:|content-length:))|^(post [\x09-\x0d -~]* http/)