From owner-svn-src-head@freebsd.org Wed Feb 26 20:18:39 2020 Return-Path: Delivered-To: svn-src-head@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 70E84243A9C; Wed, 26 Feb 2020 20:18:39 +0000 (UTC) (envelope-from cy@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 48SRvg1C3Yz4QlW; Wed, 26 Feb 2020 20:18:39 +0000 (UTC) (envelope-from cy@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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CC73C5257; Wed, 26 Feb 2020 20:18:38 +0000 (UTC) (envelope-from cy@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 01QKIcIL089119; Wed, 26 Feb 2020 20:18:38 GMT (envelope-from cy@FreeBSD.org) Received: (from cy@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 01QKIc65089118; Wed, 26 Feb 2020 20:18:38 GMT (envelope-from cy@FreeBSD.org) Message-Id: <202002262018.01QKIc65089118@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: cy set sender to cy@FreeBSD.org using -f From: Cy Schubert Date: Wed, 26 Feb 2020 20:18:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r358356 - head/sys/contrib/ipfilter/netinet X-SVN-Group: head X-SVN-Commit-Author: cy X-SVN-Commit-Paths: head/sys/contrib/ipfilter/netinet X-SVN-Commit-Revision: 358356 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Feb 2020 20:18:39 -0000 Author: cy Date: Wed Feb 26 20:18:38 2020 New Revision: 358356 URL: https://svnweb.freebsd.org/changeset/base/358356 Log: With the planned removal of GIANT (sysctl uses GIANT), make future-proof ipfilter by making it sysctl locking mpsafe. Reviewed by: kaktus Differential Revision: https://reviews.freebsd.org/D23839 Modified: head/sys/contrib/ipfilter/netinet/mlfk_ipl.c Modified: head/sys/contrib/ipfilter/netinet/mlfk_ipl.c ============================================================================== --- head/sys/contrib/ipfilter/netinet/mlfk_ipl.c Wed Feb 26 20:03:43 2020 (r358355) +++ head/sys/contrib/ipfilter/netinet/mlfk_ipl.c Wed Feb 26 20:18:38 2020 (r358356) @@ -84,23 +84,23 @@ static int ipfwrite __P((dev_t, struct uio *, int)); SYSCTL_DECL(_net_inet); #define SYSCTL_IPF(parent, nbr, name, access, ptr, val, descr) \ SYSCTL_OID(parent, nbr, name, \ - CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_NEEDGIANT | access, \ + CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_MPSAFE | access, \ ptr, val, sysctl_ipf_int, "I", descr) #define SYSCTL_DYN_IPF_NAT(parent, nbr, name, access,ptr, val, descr) \ SYSCTL_ADD_OID(&ipf_clist, SYSCTL_STATIC_CHILDREN(parent), nbr, name, \ - CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_NEEDGIANT |access, \ + CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_MPSAFE |access, \ ptr, val, sysctl_ipf_int_nat, "I", descr) #define SYSCTL_DYN_IPF_STATE(parent, nbr, name, access,ptr, val, descr) \ SYSCTL_ADD_OID(&ipf_clist, SYSCTL_STATIC_CHILDREN(parent), nbr, name, \ - CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_NEEDGIANT | access, \ + CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_MPSAFE | access, \ ptr, val, sysctl_ipf_int_state, "I", descr) #define SYSCTL_DYN_IPF_FRAG(parent, nbr, name, access,ptr, val, descr) \ SYSCTL_ADD_OID(&ipf_clist, SYSCTL_STATIC_CHILDREN(parent), nbr, name, \ - CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_NEEDGIANT | access, \ + CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_MPSAFE | access, \ ptr, val, sysctl_ipf_int_frag, "I", descr) #define SYSCTL_DYN_IPF_AUTH(parent, nbr, name, access,ptr, val, descr) \ SYSCTL_ADD_OID(&ipf_clist, SYSCTL_STATIC_CHILDREN(parent), nbr, name, \ - CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_NEEDGIANT | access, \ + CTLFLAG_DYN | CTLTYPE_INT | CTLFLAG_VNET | CTLFLAG_MPSAFE | access, \ ptr, val, sysctl_ipf_int_auth, "I", descr) static struct sysctl_ctx_list ipf_clist; #define CTLFLAG_OFF 0x00800000 /* IPFilter must be disabled */ @@ -343,13 +343,14 @@ sysctl_ipf_int ( SYSCTL_HANDLER_ARGS ) { int error = 0; + WRITE_ENTER(&V_ipfmain.ipf_mutex); if (arg1) error = SYSCTL_OUT(req, arg1, sizeof(int)); else error = SYSCTL_OUT(req, &arg2, sizeof(int)); if (error || !req->newptr) - return (error); + goto sysctl_error; if (!arg1) error = EPERM; @@ -359,6 +360,9 @@ sysctl_ipf_int ( SYSCTL_HANDLER_ARGS ) else error = SYSCTL_IN(req, arg1, sizeof(int)); } + +sysctl_error: + RWLOCK_EXIT(&V_ipfmain.ipf_mutex); return (error); }