Date: Tue, 2 Mar 2004 19:32:58 +0000 From: Bruce M Simpson <bms@spc.org> To: Gleb Smirnoff <glebius@cell.sick.ru>, Andre Oppermann <andre@freebsd.org>, Kris Kennaway <kris@obsecurity.org>, Wes Peters <wes@softweyr.com>, freebsd-net@freebsd.org, freebsd-current@freebsd.org Subject: Re: My planned work on networking stack Message-ID: <20040302193258.GD7115@saboteur.dek.spc.org> In-Reply-To: <20040302160902.GB26977@cell.sick.ru> References: <200403011507.52238.wes@softweyr.com> <20040302031625.GA4061@scylla.towardex.com> <20040302042957.GH3841@saboteur.dek.spc.org> <20040302082625.GE22985@cell.sick.ru> <20040302084321.GA21729@xor.obsecurity.org> <20040302085556.GA23734@cell.sick.ru> <20040302092825.GD884@saboteur.dek.spc.org> <20040302095134.GA24078@cell.sick.ru> <40449B8E.A48B39B0@freebsd.org> <20040302160902.GB26977@cell.sick.ru>
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On Tue, Mar 02, 2004 at 07:09:02PM +0300, Gleb Smirnoff wrote: > I do not insist that AS pathes in kernel are good idea. If you show me an > other way to get AS information when constructing netflow exports in kernel, > I'd be thankful. I'd be also thankful if you describe how policy routing can be > implemented while no AS info in kernel. > What do other FreeBSD networking withards think? I don't see any reason why we couldn't accept, for example, a 32-bit cookie for abuse by a userland daemon, with pid, as it pleases (via an rtmsg extension and PF_ROUTE). That is generic enough to provide the tie-in needed with the userland RIB and the kernel FIB. ABI breakage may occur, but I would consider that the PF_ROUTE code is in need of an overhaul anyway (see my mail to ru@ from some months ago on -current or -net with code able to panic a kernel through malformed rtmsg contents). BMS
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