Date: Fri, 23 Jun 2000 15:53:24 +0100 From: Brian Somers <brian@Awfulhak.org> To: Brian Somers <brian@Awfulhak.org>, net@FreeBSD.org Subject: Re: "frag-anyways" knob. Message-ID: <200006231453.PAA85894@hak.lan.Awfulhak.org> In-Reply-To: Message from Ruslan Ermilov <ru@sunbay.com> of "Fri, 23 Jun 2000 17:08:27 %2B0300." <20000623170827.A64269@sunbay.com>
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> On Fri, Jun 23, 2000 at 11:15:30AM +0100, Brian Somers wrote: > > [sorry if you get this twice - my laptop crashed horribly] > > > > > On Thu, Jun 22, 2000 at 08:25:01PM +0100, Brian Somers wrote: > > > > This looks good. > > > > > > > > In the PPPoE case, we need to be able to bring the program up and > > > > down based on any new MTU values negotiated by ppp(8). > > > > > > > > This could be done if tcpmssd had a ``create a pidfile'' option, > > > > where ppp.linkup could run ``tcpmssd -M IFMTU -P tcpmssd.INTERFACE.pid'' > > > > and ppp.linkdown could run ``kill `cat tcpmssd.INTERFACE.pid`''. > > > > > > > > Ppp would also need to expand IFMTU in command_Expand() in command.c. > > > > > > > > Does this make sense ? The only alternative I see is to implement > > > > this stuff in libalias and have tcpmssd use libalias. > > > > > > > Would it be enough if tcpmssd(8) could track interface MTU (kernel > > > is capable of notifying user processes about MTU changes through a > > > routing socket interface as of sys/net/if.c,v 1.83). > > > > > > usage: tcpmssd [-v] -p port [-i iface | -m mtu] > > > > > > So, if run as `tcpmssd -p 1234 -i tun0', it will peek the initial > > > MTU value on startup and then will monitor routing socket for MTU > > > changes. > > > > That sounds perfect - although I think the pidfile option would be > > nice too - for consistency. > > > I have put an updated version here: > > http://people.FreeBSD.org/~ru/tcpmssd.tgz > > This version supports `-i iface' option as described above, and it also > automatically creates /var/run/tcpmssd.<iface>.pid file if run with -i. Nice one ! > Cheers, > -- > Ruslan Ermilov Oracle Developer/DBA, > ru@sunbay.com Sunbay Software AG, > ru@FreeBSD.org FreeBSD committer, > +380.652.512.251 Simferopol, Ukraine > > http://www.FreeBSD.org The Power To Serve > http://www.oracle.com Enabling The Information Age -- Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org> <http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org> Don't _EVER_ lose your sense of humour ! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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