From owner-freebsd-bugs@freebsd.org Tue May 8 13:41:00 2018 Return-Path: Delivered-To: freebsd-bugs@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 EF30AFB6774 for ; Tue, 8 May 2018 13:40:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 86B576DAA8 for ; Tue, 8 May 2018 13:40:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 4347CFB65EE; Tue, 8 May 2018 13:40:59 +0000 (UTC) Delivered-To: bugs@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 05ADBFB65E6 for ; Tue, 8 May 2018 13:40:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 933CB6DAA0 for ; Tue, 8 May 2018 13:40:58 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id C4D8C251DF for ; Tue, 8 May 2018 13:40:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w48Dev8x025515 for ; Tue, 8 May 2018 13:40:57 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w48Devt4025514 for bugs@FreeBSD.org; Tue, 8 May 2018 13:40:57 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 228068] tclass is not used when sending to IPv4 mapped address via IPv6 socket Date: Tue, 08 May 2018 13:40:57 +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: 11.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: preynold.freebsd@gmail.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: 2.1.25 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 May 2018 13:41:00 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D228068 Bug ID: 228068 Summary: tclass is not used when sending to IPv4 mapped address via IPv6 socket Product: Base System Version: 11.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: preynold.freebsd@gmail.com When sending a udp packet from an IPv6 socket to an IPv4 mapped address, I would expect the setting for IPV6_TCLASS to be used in the TOS IP header fi= eld. It does not appear to be. A similar mapping for TTL should be present, thou= gh I did not check for that. Can be seen with a simple c program and wireshark: #include #include #include #include #include #include int main() { int s =3D socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP); if (s < 0) { perror("socket"); return -1; } int value =3D (40 << 2) & 0xFC; int ret =3D setsockopt(s, IPPROTO_IPV6, IPV6_TCLASS, &value, sizeof(va= lue)); if (ret < 0) { perror("setsockopt"); return -2; } struct addrinfo hints; memset(&hints, 0, sizeof(hints)); struct addrinfo *res =3D NULL; ret =3D getaddrinfo("::ffff:10.10.10.10", "1234", &hints, &res); if (ret !=3D 0) { perror("getaddrinfo"); return -3; } const char *msg =3D "hello world"; ssize_t n =3D sendto(s, msg, strlen(msg), 0, res->ai_addr, res->ai_add= rlen); if (n < 0) { freeaddrinfo(res); perror("sendto"); return -4; } freeaddrinfo(res); return 0; } --=20 You are receiving this mail because: You are the assignee for the bug.=