Snort mailing list archives
libpcap filter expressions
From: Mark Wiater <mwiater () bayserve net>
Date: Tue, 16 Oct 2001 09:38:54 -0400
Hello all, I've read the well written (thanks folks) documentation on rule writing for this great product (thanks folks). But can't find any mention of the ability to use libpcap syntax filter expressions. There have been a couple of times that I've wanted a rule that would do things like evaluate a bit at a specific location. This time I want to see if a UDP DNS packet has the Truncated bit set, that would be at offset 13 in the data portion of a udp packet, second byte (I think). my questions are: did I miss something? Can snort do that? Is incorporation of this ability worth conideration? thanks Mark _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- libpcap filter expressions Mark Wiater (Oct 16)