Date: Fri, 18 Jan 2002 10:41:58 +0100 (CET) From: Harti Brandt <brandt@fokus.gmd.de> To: Ruslan Ermilov <ru@FreeBSD.ORG> Cc: net@FreeBSD.ORG Subject: Re: interface creation notification Message-ID: <20020118103502.J97177-100000@beagle.fokus.gmd.de> In-Reply-To: <20020118110956.C1997@sunbay.com>
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On Fri, 18 Jan 2002, Ruslan Ermilov wrote: RE>On Thu, Jan 17, 2002 at 06:58:26PM +0100, Harti Brandt wrote: RE>> RE>> Hi, RE>> RE>> how is a daemon supposed to get informed that a network interface has been RE>> created? I had hoped, that an RTM_IFINFO message would be created on the RE>> routing socket, but this is not the case. If an interface is destroyed, RE>> the routing socket gets a message for whatever reason. Wouldn't it be RE>> simple to just create an RTM_IFINFO message? RE>> RE>It does get created (you can check with the ``route -vn monitor'' command), RE>but please see PR kern/33747 for one small pitfall. That's exactly what I did, but it doesn't work. The only places, that I can find when rt_ifmsg is called are: - interface goes up (if_route) - interface goes down (if_unroute) - change MTU (if_hwioctl) - prom. mode (ifpromisc) - allmulti (if_allmulti) No one seems to call it when I just create an interface. The RTM_IFINFO when I delete it probably comes from the if_unroute. The RTM_IFINFO you see for an ifconfig gif0 create is probably a side effect of setting the MTU or so. I think it would make sense to do an rt_ifmsg somehere in if_attach/if_detach. harti -- harti brandt, http://www.fokus.gmd.de/research/cc/cats/employees/hartmut.brandt/private brandt@fokus.fhg.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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