From nobody Thu Mar 21 07:28:36 2024 X-Original-To: net@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 4V0cWp5XZpz5FP6h for ; Thu, 21 Mar 2024 07:28:38 +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 4V0cWp4WrBz4jMF for ; Thu, 21 Mar 2024 07:28:38 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1711006118; a=rsa-sha256; cv=none; b=w4qgmmha/MNoX1+hAdpB8Et8D1VlNlgT5WseMGoDYFsa4CUgoludogkSP/XX4XMVahR2Sb VVLo4H0kqCAECrp9CMiqXvZcqzUHNo0Sv/pgHfE410rN/79lvi8XULPe0ccYOX26c93b7g sPJlJPebEPYD735wzNAbs74gCBwIveQxn2Y7RUC06ng1Szx6kgQmjj+GhZqZ+8P/k7Eyic T89lB11YCf0P6ppMw1MgrScaSyzqxoFQWxP0Y68MYO64m69I4SyNrVv0ESCRbqdWSjcYPC ogMqZdO++Rp9JELNaBNNakeu3RQbFLYa76E53RcbKyB6Br4H6NBlBvMZjKMyEw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1711006118; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0LmBsh4tzoLWQPO+v82Ph95EImf1T0hUaDjYIiq3/r0=; b=qAn8YLJPgSGsAEFgGnF+VjhTSpTlsA77TlsMB11m289OPf0k+ZmiiVqDSlXH57zPb9h+v7 KyprRRkfW702l8Zo8bz7lmuQibAG/9ibbP+XtZfvwDGi2Tf1XJL3HB4lTq6PmSUqe2jtBw q16b44nd0RajsYZfRoZG/YQR9WnkyJBZj/1kHwxRY2pyWFh9DrzktNQehMopFaW3thPua2 R/2mgEkpQBFJqIDHvOIojz8baCLNtEjN97zs0vG7rB6ohQJrMkysPH9fBtnnXg4biqHT7Q xU6lw+2m9DTddTCfB8yHqpHcgmGkvE/0YJtm4fCWc72WzXao5WhvTfr0w0cmSQ== 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 4V0cWp41NdzQvY for ; Thu, 21 Mar 2024 07:28:38 +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 42L7ScvD003116 for ; Thu, 21 Mar 2024 07:28:38 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 42L7Sccg003115 for net@FreeBSD.org; Thu, 21 Mar 2024 07:28:38 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: net@FreeBSD.org Subject: [Bug 276838] ovpn(4) - problems with large TCP segments over IPv6 tunnel when DCO module is used at both ends Date: Thu, 21 Mar 2024 07:28:36 +0000 X-Bugzilla-Reason: CC AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.0-STABLE X-Bugzilla-Keywords: regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: kp@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276838 --- Comment #3 from Kristof Provost --- I am unable to reproduce any such issue testing locally. Over an IPv6 tunne= l I manage to transmit arbitrary sized ping requests, and I also see no issues transmitting a large (1MB) file. Patch for reference: diff --git a/tests/sys/net/if_ovpn/if_ovpn.sh b/tests/sys/net/if_ovpn/if_ovpn.sh index bbaffa0bce73..0ec2563cf355 100644 --- a/tests/sys/net/if_ovpn/if_ovpn.sh +++ b/tests/sys/net/if_ovpn/if_ovpn.sh @@ -308,10 +308,28 @@ atf_test_case "4in6" "cleanup" keepalive 100 600 " + dd if=3D/dev/random of=3Dtest.img bs=3D1024 count=3D1024 + cat test.img | jexec a nc -N -l 1234 & + # Give the tunnel time to come up sleep 10 atf_check -s exit:0 -o ignore jexec b ping -c 3 198.51.100.1 + + # MTU sweep + for i in `seq 1000 1500` + do + atf_check -s exit:0 -o ignore jexec b \ + ping -c 1 -s $i 198.51.100.1 + done + + rcvmd5=3D$(jexec b nc -N -w 3 198.51.100.1 1234 | md5) + md5=3D$(md5 test.img) + + if [ $md5 !=3D $rcvmd5 ]; + then + atf_fail "Transmit corruption!" + fi } 4in6_cleanup() --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=