From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965007AbcIPTam (ORCPT ); Fri, 16 Sep 2016 15:30:42 -0400 Received: from mail-pf0-f182.google.com ([209.85.192.182]:33266 "EHLO mail-pf0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935976AbcIPTac (ORCPT ); Fri, 16 Sep 2016 15:30:32 -0400 Subject: Re: [PATCH v3] net: ip, diag -- Add diag interface for raw sockets To: Cyrill Gorcunov , Eric Dumazet References: <20160913171950.GC32643@uranus> <8260ff1f-6907-aed8-caae-68d63a4ad529@cumulusnetworks.com> <20160915202219.GB1867@uranus.lan> <20160915210126.GC1867@uranus.lan> <1473979691.22679.55.camel@edumazet-glaptop3.roam.corp.google.com> <999f0ddb-82e4-ea07-b52a-59d08bc7816d@cumulusnetworks.com> <20160916070623.GD1867@uranus.lan> <20160916190000.GA18116@uranus.lan> Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, David Miller , kuznet@ms2.inr.ac.ru, jmorris@namei.org, yoshfuji@linux-ipv6.org, kaber@trash.net, avagin@openvz.org, stephen@networkplumber.org From: David Ahern Message-ID: <59e12627-7043-fd20-0d68-899ab43b0e71@cumulusnetworks.com> Date: Fri, 16 Sep 2016 13:30:28 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <20160916190000.GA18116@uranus.lan> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/16/16 1:00 PM, Cyrill Gorcunov wrote: > I created veth pair and bound raw socket into it. > > [root@pcs7 iproute2]# misc/ss -A raw > State Recv-Q Send-Q Local Address:Port Peer Address:Port > ESTAB 0 0 127.0.0.1:ipproto-255 127.0.0.10:ipproto-9090 > UNCONN 0 0 127.0.0.10:ipproto-255 *:* > UNCONN 0 0 :::ipv6-icmp :::* > UNCONN 0 0 :::ipv6-icmp :::* > ESTAB 0 0 ::1:ipproto-255 ::1:ipproto-9091 > UNCONN 0 0 ::1%vm1:ipproto-255 :::* > [root@pcs7 iproute2]# > > [root@pcs7 iproute2]# misc/ss -aKw 'dev == vm1' > State Recv-Q Send-Q Local Address:Port Peer Address:Port > UNCONN 0 0 ::1%vm1:ipproto-255 :::* > > [root@pcs7 iproute2]# misc/ss -A raw > State Recv-Q Send-Q Local Address:Port Peer Address:Port > ESTAB 0 0 127.0.0.1:ipproto-255 127.0.0.10:ipproto-9090 > UNCONN 0 0 127.0.0.10:ipproto-255 *:* > UNCONN 0 0 :::ipv6-icmp :::* > UNCONN 0 0 :::ipv6-icmp :::* > ESTAB 0 0 ::1:ipproto-255 ::1:ipproto-9091 > > so it get zapped out. Is there some other way to test it? > I'm guessing you passed IPPROTO_RAW (255) as the protocol to socket(). If you pass something else (IPPROTO_ICMP for example) it won't work.