Date: Mon, 25 Jul 2005 10:22:58 -0700 From: Brooks Davis <brooks@one-eyed-alien.net> To: Sam Leffler <sam@errno.com> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, "Christian S.J. Peron" <csjp@FreeBSD.org>, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/net bpf.c bpfdesc.h Message-ID: <20050725172258.GB7590@odin.ac.hmc.edu> In-Reply-To: <42E3DB49.4070704@errno.com> References: <200507241721.j6OHLImZ032073@repoman.freebsd.org> <20050724172508.GA15547@freefall.freebsd.org> <42E3DB49.4070704@errno.com>
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--ZfOjI3PrQbgiZnxM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jul 24, 2005 at 11:17:45AM -0700, Sam Leffler wrote: > Christian S.J. Peron wrote: > >On Sun, Jul 24, 2005 at 05:21:18PM +0000, Christian S.J. Peron wrote: > > > >>csjp 2005-07-24 17:21:18 UTC > >> > >> FreeBSD src repository > >> > >> Modified files: > >> sys/net bpf.c bpfdesc.h=20 > >> Log: > >> Introduce new sysctl variable: net.bpf.stats. This sysctl variable can > >> be used to pass statistics regarding dropped, matched and received > >> packet counts from the kernel to user-space. While we are here > >> introduce a new counter for filtered or matched packets. We currently > >> keep track of packets received or dropped by the bpf device, but not > >> how many packets actually matched the bpf filter. > >>=20 > > > > > >I have a userspace program to display these stats: > > > >http://people.freebsd.org/~csjp/bpfstat.1122182321.shar > > > >An example of the output is: > > > >$ bpfstat > > pid netif flags recv drop match sblen hblen command > >10750 rl0 p--s- 260 0 260 2426 0 tcpdump > >$ > > > >I plan to move this into base, but I would like some people > >to test/review it first. > > >=20 > There are numerous little programs like this looking for a common home.= =20 > I suggest you stick your program in the tools area until we can=20 > resolve where to integrate them. I've wanted to overhaul netstats in a= =20 > manner similar to ifconfig so it's easy to add code like this and/or=20 > write these as modules that are dynamically loaded (e.g. so vendors can= =20 > distribute add-ons). Work is underway on cleaning up the libkvm bits of netstat at the moment so now is not the best time for major surgery. I do agree that a modular rewrite similar to ifconfig is the way to go. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --ZfOjI3PrQbgiZnxM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFC5R/xXY6L6fI4GtQRAqKeAJ4h9jA/RjSfSw0zYFm+vpFUp1oc5wCgxGlZ n2D0pvtCGI7PQUDNALymJTk= =oe5j -----END PGP SIGNATURE----- --ZfOjI3PrQbgiZnxM--
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