From owner-svn-src-stable-9@FreeBSD.ORG Thu Sep 18 22:12:52 2014 Return-Path: Delivered-To: svn-src-stable-9@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id CB186EB7; Thu, 18 Sep 2014 22:12:52 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::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 9C6B1CB3; Thu, 18 Sep 2014 22:12:52 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id s8IMCqwi097876; Thu, 18 Sep 2014 22:12:52 GMT (envelope-from asomers@FreeBSD.org) Received: (from asomers@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id s8IMCqNw097875; Thu, 18 Sep 2014 22:12:52 GMT (envelope-from asomers@FreeBSD.org) Message-Id: <201409182212.s8IMCqNw097875@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: asomers set sender to asomers@FreeBSD.org using -f From: Alan Somers Date: Thu, 18 Sep 2014 22:12:52 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r271842 - stable/9/sys/netinet X-SVN-Group: stable-9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-9@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for only the 9-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Sep 2014 22:12:52 -0000 Author: asomers Date: Thu Sep 18 22:12:52 2014 New Revision: 271842 URL: http://svnweb.freebsd.org/changeset/base/271842 Log: MFC r265092, except for the ATF bits. Fix a panic when removing an IP address from an interface, if the same address exists on another interface. The panic was introduced by change 264887, which changed the fibnum parameter in the call to rtalloc1_fib() in ifa_switch_loopback_route() from RT_DEFAULT_FIB to RT_ALL_FIBS. The solution is to use the interface fib in that call. For the majority of users, that will be equivalent to the legacy behavior. PR: kern/189089 Modified: stable/9/sys/netinet/in.c Directory Properties: stable/9/ (props changed) stable/9/sys/ (props changed) Modified: stable/9/sys/netinet/in.c ============================================================================== --- stable/9/sys/netinet/in.c Thu Sep 18 22:10:49 2014 (r271841) +++ stable/9/sys/netinet/in.c Thu Sep 18 22:12:52 2014 (r271842) @@ -1051,11 +1051,9 @@ in_scrubprefix(struct in_ifaddr *target, { struct in_ifaddr *ia; struct in_addr prefix, mask, p; - int error = 0, fibnum; + int error = 0; struct sockaddr_in prefix0, mask0; - fibnum = rt_add_addr_allfibs ? RT_ALL_FIBS : target->ia_ifp->if_fib; - /* * Remove the loopback route to the interface address. * The "useloopback" setting is not consulted because if the @@ -1071,9 +1069,11 @@ in_scrubprefix(struct in_ifaddr *target, (target->ia_flags & IFA_RTSELF)) { struct route ia_ro; int freeit = 0; + int fibnum; bzero(&ia_ro, sizeof(ia_ro)); *((struct sockaddr_in *)(&ia_ro.ro_dst)) = target->ia_addr; + fibnum = target->ia_ifp->if_fib; rtalloc_ign_fib(&ia_ro, 0, fibnum); if ((ia_ro.ro_rt != NULL) && (ia_ro.ro_rt->rt_ifp != NULL) && (ia_ro.ro_rt->rt_ifp == V_loif)) { @@ -1107,6 +1107,10 @@ in_scrubprefix(struct in_ifaddr *target, } if ((target->ia_flags & IFA_ROUTE) == 0) { + int fibnum; + + fibnum = rt_add_addr_allfibs ? RT_ALL_FIBS : + target->ia_ifp->if_fib; rt_addrmsg(RTM_DELETE, &target->ia_ifa, fibnum); return (0); }