From nobody Mon Jul 19 20:55:37 2021 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id D9F30127A1EB for ; Mon, 19 Jul 2021 20:55:37 +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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GTDdP5V8Cz3pyL for ; Mon, 19 Jul 2021 20:55:37 +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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9F7BE1DA63 for ; Mon, 19 Jul 2021 20:55:37 +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 16JKtbYD015185 for ; Mon, 19 Jul 2021 20:55:37 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 16JKtbaT015184 for bugs@FreeBSD.org; Mon, 19 Jul 2021 20:55:37 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 257286] gateway with `ping -6 -e` is ignored Date: Mon, 19 Jul 2021 20:55:37 +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: 13.0-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jcaplan@blackberry.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 attachments.created 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 List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D257286 Bug ID: 257286 Summary: gateway with `ping -6 -e` is ignored Product: Base System Version: 13.0-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: jcaplan@blackberry.com Created attachment 226555 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D226555&action= =3Dedit proposed patch Overview -------- Specifying a gateway with `ping -6 -e` is ignored. Steps to Reproduce ------------------ Two devices D1 and D2 D1: ifconfig vmx0 inet6 3ffe::1 ifconfig vmx1 inet6 2001::1 D2: ifconfig vmx0 inet6 3ffe::2 ifconfig vmx1 inet6 2001::2 Then on D1: ping -6 -e 3ffe::2 -c3 2001::2 Actual Results: --------------- The icmp6 message goes out from D1 on vmx1 Expected Results ---------------- The icmp6 message goes out from D1 on vmx0 Build Date & Hardware --------------------- FreeBSD freebsd 13.0-RELEASE FreeBSD 13.0-RELEASE #6 releng/13.0-n244733-ea31abc261f: Sat Jun 19 06:23:53 UTC 2021 Additional Information ---------------------- See attached patch. Control flow has changed quite a bit in ip6_output() since 12.2. In this scenario, we have ro =3D=3D NULL and hit the else block to determin= e the outgoing interface based on the destination ip. When ping6 uses the IPV6_NEXTHOP option, then opt->ip6po_nextroute.ro_nh is defined. However, w= hen we hit the old check later on, nh =3D=3D NULL so it is ignored and we never= get a chance to check for a hard coded next hop. Instead, when ro =3D=3D NULL, need to check the option and hard code the destination prior to calling fib6_lookup() which will assign the interface. --=20 You are receiving this mail because: You are the assignee for the bug.=