From owner-freebsd-net@freebsd.org Tue Aug 27 01:15:47 2019 Return-Path: Delivered-To: freebsd-net@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 659B9C2D5C for ; Tue, 27 Aug 2019 01:15:47 +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 46HWCR1Cw6z48jy for ; Tue, 27 Aug 2019 01:15:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 25942C2D5B; Tue, 27 Aug 2019 01:15:47 +0000 (UTC) Delivered-To: net@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 25582C2D5A for ; Tue, 27 Aug 2019 01:15:47 +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 46HWCQ6mHWz48jx for ; Tue, 27 Aug 2019 01:15:46 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CA6A4F078 for ; Tue, 27 Aug 2019 01:15:46 +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 x7R1FkVw079712 for ; Tue, 27 Aug 2019 01:15:46 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x7R1FkFZ079711 for net@FreeBSD.org; Tue, 27 Aug 2019 01:15:46 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 240137] Multicast source blocking using IP_BLOCK_SOURCE not working? Date: Tue, 27 Aug 2019 01:15:41 +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: 12.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: glewis@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: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.mimetype 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 MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Aug 2019 01:15:47 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D240137 Bug ID: 240137 Summary: Multicast source blocking using IP_BLOCK_SOURCE not working? Product: Base System Version: 12.0-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: net@FreeBSD.org Reporter: glewis@FreeBSD.org Attachment #206944 text/plain mime type: Created attachment 206944 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D206944&action= =3Dedit Test program While testing Java on FreeBSD, I noticed a test failure due to multicast so= urce blocking not working. I can supply the Java code if that would be helpful,= but I've boiled down the test into some C code which does the same thing which I think will be more useful. The test code will attempt to first send and receive a multicast packet. It will then block the source and try it again. This should result in the sec= ond receive just blocking since no packet should come through. However, on Fre= eBSD it does. The same test program on Linux behaves as expected (i.e., the sec= ond receive blocks). Please let me know if the test program is doing something incorrectly on FreeBSD. This is based on my reading of the section of ip(4) regarding IP_BLOCK_SOURCE and testing on Linux. Note that I've tested the code on both 11.3 and 12.0, with the same result. --=20 You are receiving this mail because: You are the assignee for the bug.=