From owner-freebsd-net@freebsd.org Sat Feb 24 04:13:58 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id CFB7CF12396 for ; Sat, 24 Feb 2018 04:13:58 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [78.47.246.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 53D0E6BF8F for ; Sat, 24 Feb 2018 04:13:57 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221] (may be forged)) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id w1O4DoKV022075 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 24 Feb 2018 05:13:51 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: longwitz@incore.de Received: from [10.58.0.4] (dadv@[10.58.0.4]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTPS id w1O4Dk2X002543 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Sat, 24 Feb 2018 11:13:46 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: loopback routes pinned by commit r326012 for FreeBSD 10 cannot be deleted To: Andreas Longwitz , freebsd-net@freebsd.org References: <5A9075CB.10408@incore.de> From: Eugene Grosbein Message-ID: <5A90E679.3030106@grosbein.net> Date: Sat, 24 Feb 2018 11:13:45 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: <5A9075CB.10408@incore.de> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=2.2 required=5.0 tests=BAYES_00, LOCAL_FROM, RDNS_NONE autolearn=no autolearn_force=no version=3.4.1 X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * 1.9 RDNS_NONE Delivered to internal network by a host with no rDNS * 2.6 LOCAL_FROM From my domains X-Spam-Level: ** X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on hz.grosbein.net X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Feb 2018 04:13:59 -0000 24.02.2018 3:12, Andreas Longwitz wrote: > Also the loopback route can not be deleted manually: > > route delete 10.0.0.100 --> > route: writing to routing socket: Address already in use > delete host 10.0.0.100 fib 0: gateway uses the same route Please test the follwoind patch for the kernel: --- sys/net/if.c.orig 2018-02-24 08:00:34.578670000 +0700 +++ sys/net/if.c 2018-02-24 11:07:57.014318000 +0700 @@ -1699,7 +1699,7 @@ ifa_del_loopback_route(struct ifaddr *if null_sdl.sdl_type = ifa->ifa_ifp->if_type; null_sdl.sdl_index = ifa->ifa_ifp->if_index; bzero(&info, sizeof(info)); - info.rti_flags = ifa->ifa_flags | RTF_HOST | RTF_STATIC; + info.rti_flags = ifa->ifa_flags | RTF_HOST | RTF_STATIC | RTF_PINNED; info.rti_info[RTAX_DST] = ia; info.rti_info[RTAX_GATEWAY] = (struct sockaddr *)&null_sdl; error = rtrequest1_fib(RTM_DELETE, &info, NULL, ifa->ifa_ifp->if_fib);