From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-f180.google.com ([74.125.82.180]:36306 "EHLO mail-we0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754123AbaI2ORl (ORCPT ); Mon, 29 Sep 2014 10:17:41 -0400 Received: by mail-we0-f180.google.com with SMTP id x48so2281586wes.25 for ; Mon, 29 Sep 2014 07:17:40 -0700 (PDT) Date: Mon, 29 Sep 2014 16:17:37 +0200 From: Alexander Aring Subject: Re: ICMPv6 Redirects Message-ID: <20140929141735.GC15411@omega> References: <5429441C.5000302@gmail.com> <5429466F.4080506@gmail.com> <54295556.3030800@xsilon.com> <20140929131200.GA14608@omega> <20140929133048.GB14608@omega> <54295FA9.8030506@xsilon.com> <20140929133841.GA15176@omega> <542963F7.4030903@xsilon.com> <20140929135759.GA15411@omega> <542968C5.7000505@xsilon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <542968C5.7000505@xsilon.com> Sender: linux-wpan-owner@vger.kernel.org List-ID: To: Simon Vincent Cc: Varka Bhadram , linux-wpan@vger.kernel.org On Mon, Sep 29, 2014 at 03:12:21PM +0100, Simon Vincent wrote: > > On 29/09/14 14:58, Alexander Aring wrote: > >On Mon, Sep 29, 2014 at 02:51:51PM +0100, Simon Vincent wrote: > >>Sorry for the confusion. My problem is I am receiving all packets. > >>PACKET_OTHERHOST does not seem to be dropped. A suggestion from Varka was to > >>disable redirects however it now seems that this is not possible on a ipv6 > >>interface. > >> > >>I can fix the problem by dropping PACKET_OTHERHOST in mac802154_subif_frame. > >The first what IPv6 does is [0]. > > > >See my previous mail. Also that we should handle on 6LoWPAN packet > >handler function for receiving "lowpan_rcv" we should do the same, > >otherwise we parsing PACKET_OTHERHOST sk_buff's and drop these directly > >in IPv6 layer, which makes no sense. > > > >But what I see is that the current behaviour should also work. > >Instrument the IPv6 delivery function and be sure that the information > >about PACKET_OTHERHOST was not dropped. > I do not catch any PACKET_OTHERHOST packets in the ip6_input.c ipv6_rcv > function. Can you please check these two functions: lowpan_give_skb_to_devices -> send to IPv6 layer and lowpan_rcv -> getting sk_buff from mac802154 and with check I mean PACKET_OTHERHOST value. I suppose we drop the information somewhere in the middle. - Alex