From owner-svn-src-all@freebsd.org Wed Aug 17 15:14:22 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5EF2ABBDF74; Wed, 17 Aug 2016 15:14:22 +0000 (UTC) (envelope-from kp@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 2D5721632; Wed, 17 Aug 2016 15:14:22 +0000 (UTC) (envelope-from kp@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u7HFEL9f085460; Wed, 17 Aug 2016 15:14:21 GMT (envelope-from kp@FreeBSD.org) Received: (from kp@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u7HFELuO085459; Wed, 17 Aug 2016 15:14:21 GMT (envelope-from kp@FreeBSD.org) Message-Id: <201608171514.u7HFELuO085459@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kp set sender to kp@FreeBSD.org using -f From: Kristof Provost Date: Wed, 17 Aug 2016 15:14:21 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r304293 - stable/10/sys/net X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Aug 2016 15:14:22 -0000 Author: kp Date: Wed Aug 17 15:14:21 2016 New Revision: 304293 URL: https://svnweb.freebsd.org/changeset/base/304293 Log: MFC r289932, r289940: PF_ANEQ() macro will in most situations returns TRUE comparing two identical IPv4 packets (when it should return FALSE). It happens because PF_ANEQ() doesn't stop if first 32 bits of IPv4 packets are equal and starts to check next 3*32 bits (like for IPv6 packet). Those bits containt some garbage and in result PF_ANEQ() wrongly returns TRUE. Fix: Check if packet is of AF_INET type and if it is then compare only first 32 bits of data. PR: 204005 Submitted by: Miłosz Kaniewski Modified: stable/10/sys/net/pfvar.h Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/net/pfvar.h ============================================================================== --- stable/10/sys/net/pfvar.h Wed Aug 17 14:44:47 2016 (r304292) +++ stable/10/sys/net/pfvar.h Wed Aug 17 15:14:21 2016 (r304293) @@ -198,10 +198,11 @@ extern struct rwlock pf_rules_lock; (a)->addr32[0] == (b)->addr32[0])) \ #define PF_ANEQ(a, b, c) \ - ((a)->addr32[0] != (b)->addr32[0] || \ + ((c == AF_INET && (a)->addr32[0] != (b)->addr32[0]) || \ + (c == AF_INET6 && ((a)->addr32[0] != (b)->addr32[0] || \ (a)->addr32[1] != (b)->addr32[1] || \ (a)->addr32[2] != (b)->addr32[2] || \ - (a)->addr32[3] != (b)->addr32[3]) \ + (a)->addr32[3] != (b)->addr32[3]))) \ #define PF_AZERO(a, c) \ ((c == AF_INET && !(a)->addr32[0]) || \