From owner-svn-src-all@FreeBSD.ORG Tue Dec 17 21:41:24 2013 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4856AA4A; Tue, 17 Dec 2013 21:41:24 +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)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 1A40C1FD3; Tue, 17 Dec 2013 21:41:24 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id rBHLfNFW059840; Tue, 17 Dec 2013 21:41:23 GMT (envelope-from np@svn.freebsd.org) Received: (from np@localhost) by svn.freebsd.org (8.14.7/8.14.7/Submit) id rBHLfNKa059838; Tue, 17 Dec 2013 21:41:23 GMT (envelope-from np@svn.freebsd.org) Message-Id: <201312172141.rBHLfNKa059838@svn.freebsd.org> From: Navdeep Parhar Date: Tue, 17 Dec 2013 21:41:23 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r259527 - head/sys/dev/cxgbe/tom X-SVN-Group: head 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: 2.1.17 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: Tue, 17 Dec 2013 21:41:24 -0000 Author: np Date: Tue Dec 17 21:41:23 2013 New Revision: 259527 URL: http://svnweb.freebsd.org/changeset/base/259527 Log: Do not create a hardware IPv6 server if the listen address is not in6addr_any and is not in the CLIP table either. This fixes a reported TOE+IPv6 NULL-dereference panic in do_pass_open_rpl(). While here, stop creating hardware servers for any loopback address. It's just a waste of server tids. MFC after: 1 week Modified: head/sys/dev/cxgbe/tom/t4_listen.c head/sys/dev/cxgbe/tom/t4_tom.h Modified: head/sys/dev/cxgbe/tom/t4_listen.c ============================================================================== --- head/sys/dev/cxgbe/tom/t4_listen.c Tue Dec 17 21:39:40 2013 (r259526) +++ head/sys/dev/cxgbe/tom/t4_listen.c Tue Dec 17 21:41:23 2013 (r259527) @@ -203,6 +203,17 @@ alloc_lctx(struct adapter *sc, struct in return (NULL); } + if (inp->inp_vflag & INP_IPV6 && + !IN6_ARE_ADDR_EQUAL(&in6addr_any, &inp->in6p_laddr)) { + struct tom_data *td = sc->tom_softc; + + lctx->ce = hold_lip(td, &inp->in6p_laddr); + if (lctx->ce == NULL) { + free(lctx, M_CXGBE); + return (NULL); + } + } + lctx->ctrlq = &sc->sge.ctrlq[pi->port_id]; lctx->ofld_rxq = &sc->sge.ofld_rxq[pi->first_ofld_rxq]; refcount_init(&lctx->refcount, 1); @@ -219,6 +230,7 @@ static int free_lctx(struct adapter *sc, struct listen_ctx *lctx) { struct inpcb *inp = lctx->inp; + struct tom_data *td = sc->tom_softc; INP_WLOCK_ASSERT(inp); KASSERT(lctx->refcount == 0, @@ -230,6 +242,8 @@ free_lctx(struct adapter *sc, struct lis CTR4(KTR_CXGBE, "%s: stid %u, lctx %p, inp %p", __func__, lctx->stid, lctx, lctx->inp); + if (lctx->ce) + release_lip(td, lctx->ce); free_stid(sc, lctx); free(lctx, M_CXGBE); @@ -495,6 +509,12 @@ t4_listen_start(struct toedev *tod, stru INP_WLOCK_ASSERT(inp); + /* Don't start a hardware listener for any loopback address. */ + if (inp->inp_vflag & INP_IPV6 && IN6_IS_ADDR_LOOPBACK(&inp->in6p_laddr)) + return (0); + if (!(inp->inp_vflag & INP_IPV6) && + IN_LOOPBACK(ntohl(inp->inp_laddr.s_addr))) + return (0); #if 0 ADAPTER_LOCK(sc); if (IS_BUSY(sc)) { Modified: head/sys/dev/cxgbe/tom/t4_tom.h ============================================================================== --- head/sys/dev/cxgbe/tom/t4_tom.h Tue Dec 17 21:39:40 2013 (r259526) +++ head/sys/dev/cxgbe/tom/t4_tom.h Tue Dec 17 21:41:23 2013 (r259527) @@ -176,6 +176,7 @@ struct listen_ctx { struct inpcb *inp; /* listening socket's inp */ struct sge_wrq *ctrlq; struct sge_ofld_rxq *ofld_rxq; + struct clip_entry *ce; TAILQ_HEAD(, synq_entry) synq; };