From owner-freebsd-bugs@freebsd.org Mon Mar 30 07:51:21 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4636F279F6B for ; Mon, 30 Mar 2020 07:51:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 48rPm566YZz3xVT for ; Mon, 30 Mar 2020 07:51:17 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 5CAA8279F61; Mon, 30 Mar 2020 07:51:13 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 5A4CC279F60 for ; Mon, 30 Mar 2020 07:51:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48rPly2JRDz3xS6 for ; Mon, 30 Mar 2020 07:51:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 3AD471805E for ; Mon, 30 Mar 2020 07:51:00 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 02U7oxkh080943 for ; Mon, 30 Mar 2020 07:50:59 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 02U7oxuH080942 for bugs@FreeBSD.org; Mon, 30 Mar 2020 07:50:59 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 245181] Proxy ARP (net.link.ether.inet.proxyall) does not work for FIB other than 0 Date: Mon, 30 Mar 2020 07:50:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: freebsd-bugzilla@thismonkey.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Mar 2020 07:51:21 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D245181 Bug ID: 245181 Summary: Proxy ARP (net.link.ether.inet.proxyall) does not work for FIB other than 0 Product: Base System Version: 12.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: freebsd-bugzilla@thismonkey.com Through troubleshooting and subsequent source code verification (sys/netinet/if_ether.c) it appears that FreeBSD does not perform proxy ARP= for ARP requests whose target host reside in any FIB other than FIB 0. Code at line 1073 indicates this: /* XXX MRT use table 0 for arp checks */=20=20=20=20=20=20=20=20=20=20=20= =20=20 if (fib4_lookup_nh_basic(0, isaddr, 0, 0, &nh4) !=3D 0) goto drop;=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 This seems to be an incomplete implementation of the FIB functionality.=20 FreeBSD should 1) lookup the FIB of the interface on which the ARP request arrived 2) perform a route lookup of the target in correct FIB 3) perform sanity checks 4) proxy-reply to the ARP request accordingly Without this, operations like dropping some cloned interfaces into a non-ze= ro FIB are futile. Thanks. --=20 You are receiving this mail because: You are the assignee for the bug.=