Date: 04 Oct 2002 18:21:47 +0400 From: "Vladimir B. " Grebenschikov <vova@sw.ru> To: Maxim Sobolev <sobomax@FreeBSD.ORG> Cc: sumikawa@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: zebra interface flags problem on 4.7-RC2 (IFF_PROMISC) Message-ID: <1033741307.1060.22.camel@vbook.express.ru> In-Reply-To: <20021004140644.GB61661@vega.vega.com> References: <1033739506.1060.16.camel@vbook.express.ru> <20021004140644.GB61661@vega.vega.com>
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χ Fri, 04.10.2002, Χ 18:06, Maxim Sobolev ΞΑΠΙΣΑΜ: > On Fri, Oct 04, 2002 at 05:51:46PM +0400, Vladimir B. Grebenschikov wrote: > > > > Hi > > > > I have tried to install fresh zebra (from ports) on 4.7-RC2 > > > > have a problem - zebra turns on promiscuity mode on interface, > > it is completely unacceptable when interface connected to HUB (not > > switch) - router begins resend all packets. > > > > # ifconfig fxp1 > > fxp1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > > inet 193.125.143.129 netmask 0xffffff00 broadcast > > 193.125.143.255 > > ether 00:a0:c9:41:a3:a3 > > media: Ethernet autoselect (10baseT/UTP) > > status: active > > # zebra -d > > 2002/10/04 16:33:42 ZEBRA: can't get ip6forwarding value > > # ifconfig fxp1 > > fxp1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu > > 1500 > > inet 193.125.143.129 netmask 0xffffff00 broadcast > > 193.125.143.255 > > ether 00:a0:c9:41:a3:a3 > > media: Ethernet autoselect (10baseT/UTP) > > status: active > > > > > > Nothing special in zebra config, just installed 4.7-RC2, just upgraded > > zebra. > > > > I am not sure is it Zebra-related or FreeBSD-related problem > > digging into zebra code do not show any abnormal interface flags > > installed. > > This is probably a bug in zebra - I guess that it's doesn't clear > 'struct ifreq' properly before SIOCSIFFLAGS ioctl(2). Zebra explicitly sets flags like this: ioctl.c: ifreq.ifr_flags = ifp->flags; ioctl.c: ifreq.ifr_flags |= flags; and I have tried to change code: ioctl.c: ifreq.ifr_flags = ifp->flags; ioctl.c: ifreq.ifr_flags |= flags; ioctl.c: ifreq.ifr_flags &= ~(IFF_PROMISC); - does not help. > -Maxim > > > > > May be problem related to following commit: > > > > date: 2002/08/30 14:23:38; author: sobomax; state: Exp; lines: +25 -4 > > MFC: user-setable promisc mode. The code is slightly diffrent (and > > uglier) > > than in HEAD, because we have had to preserve kernel ABI, so that > > increasing > > if_flags to 32 bits was not an option. > > > > > > -- > > Vladimir B. Grebenschikov > > vova@sw.ru, SWsoft, Inc. > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > -- Vladimir B. Grebenschikov vova@sw.ru, SWsoft, Inc. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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