CVS commit: src/sys/net

["Tom Ivar Helbekkmo" <tih%netbsd.org@localhost>]

Module Name:    src
Committed By:   tih
Date:           Fri Mar 16 17:12:05 UTC 2018

Modified Files:
        src/sys/net: if_tun.c

Log Message:
Add packet filtering to tun(4) interfaces.

Calls to pfil_run_hooks() were missing in if_tun.c.  This meant that
filtering configuration could be added to e.g. /etc/npf.conf, but
would be ignored, because the filter never saw the packets.  This
change adds the required calls.

While here, correct the return value from tun_output(): it's been
returning 0 regardless of any error condition present, but will now
correctly propagate such information upward.

Thanks to maxv for guidance!

OK: christos, martin


To generate a diff of this commit:
cvs rdiff -u -r1.142 -r1.143 src/sys/net/if_tun.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.