dect
/
linux-2.6
Archived
13
0
Fork 0
Commit Graph

2 Commits

Author SHA1 Message Date
Jaswinder Singh Rajput 8a3af79361 netfilter: headers_check fix: linux/netfilter/xt_osf.h
fix the following 'make headers_check' warnings:

  usr/include/linux/netfilter/xt_osf.h:40: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-29 14:28:27 +02:00
Evgeniy Polyakov 11eeef41d5 netfilter: passive OS fingerprint xtables match
Passive OS fingerprinting netfilter module allows to passively detect
remote OS and perform various netfilter actions based on that knowledge.
This module compares some data (WS, MSS, options and it's order, ttl, df
and others) from packets with SYN bit set with dynamically loaded OS
fingerprints.

Fingerprint matching rules can be downloaded from OpenBSD source tree
or found in archive and loaded via netfilter netlink subsystem into
the kernel via special util found in archive.

Archive contains library file (also attached), which was shipped
with iptables extensions some time ago (at least when ipt_osf existed
in patch-o-matic).

Following changes were made in this release:
 * added NLM_F_CREATE/NLM_F_EXCL checks
 * dropped _rcu list traversing helpers in the protected add/remove calls
 * dropped unneded structures, debug prints, obscure comment and check

Fingerprints can be downloaded from
http://www.openbsd.org/cgi-bin/cvsweb/src/etc/pf.os
or can be found in archive

Example usage:
-d switch removes fingerprints

Please consider for inclusion.
Thank you.

Passive OS fingerprint homepage (archives, examples):
http://www.ioremap.net/projects/osf

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-08 17:01:51 +02:00