From owner-svn-src-all@FreeBSD.ORG Tue Dec 10 12:36:45 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 2C5231AD; Tue, 10 Dec 2013 12:36:45 +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 F20AD171A; Tue, 10 Dec 2013 12:36:44 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id rBACaib0031408; Tue, 10 Dec 2013 12:36:44 GMT (envelope-from mav@svn.freebsd.org) Received: (from mav@localhost) by svn.freebsd.org (8.14.7/8.14.7/Submit) id rBACaia2031406; Tue, 10 Dec 2013 12:36:44 GMT (envelope-from mav@svn.freebsd.org) Message-Id: <201312101236.rBACaia2031406@svn.freebsd.org> From: Alexander Motin Date: Tue, 10 Dec 2013 12:36:44 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r259168 - in head: cddl/contrib/opensolaris/lib/libzfs/common sys/cddl/contrib/opensolaris/uts/common/fs/zfs 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, 10 Dec 2013 12:36:45 -0000 Author: mav Date: Tue Dec 10 12:36:44 2013 New Revision: 259168 URL: http://svnweb.freebsd.org/changeset/base/259168 Log: Don't even try to read vdev labels from devices smaller then SPA_MINDEVSIZE (64MB). Even if we would find one somehow, ZFS kernel code rejects such devices. It is funny to look on attempts to read 4 256K vdev labels from 1.44MB floppy, though it is not very practical and quite slow. Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Modified: head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c ============================================================================== --- head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c Tue Dec 10 11:47:38 2013 (r259167) +++ head/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c Tue Dec 10 12:36:44 2013 (r259168) @@ -995,10 +995,10 @@ nozpool_all_slices(avl_tree_t *r, const #endif /* sun */ } +#ifdef sun static void check_slices(avl_tree_t *r, int fd, const char *sname) { -#ifdef sun struct extvtoc vtoc; struct dk_gpt *gpt; char diskname[MAXNAMELEN]; @@ -1028,8 +1028,8 @@ check_slices(avl_tree_t *r, int fd, cons check_one_slice(r, diskname, i, 0, 1); efi_free(gpt); } -#endif /* sun */ } +#endif /* sun */ static void zpool_open_func(void *arg) @@ -1059,6 +1059,7 @@ zpool_open_func(void *arg) return; } /* this file is too small to hold a zpool */ +#ifdef sun if (S_ISREG(statbuf.st_mode) && statbuf.st_size < SPA_MINDEVSIZE) { (void) close(fd); @@ -1070,6 +1071,12 @@ zpool_open_func(void *arg) */ check_slices(rn->rn_avl, fd, rn->rn_name); } +#else /* !sun */ + if (statbuf.st_size < SPA_MINDEVSIZE) { + (void) close(fd); + return; + } +#endif /* sun */ if ((zpool_read_label(fd, &config)) != 0) { (void) close(fd); Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Tue Dec 10 11:47:38 2013 (r259167) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Tue Dec 10 12:36:44 2013 (r259168) @@ -401,10 +401,16 @@ vdev_geom_attach_taster(struct g_consume if (pp->flags & G_PF_WITHER) return (EINVAL); - if (pp->sectorsize > VDEV_PAD_SIZE || !ISP2(pp->sectorsize)) - return (EINVAL); g_attach(cp, pp); error = g_access(cp, 1, 0, 0); + if (error == 0) { + if (pp->sectorsize > VDEV_PAD_SIZE || !ISP2(pp->sectorsize)) + error = EINVAL; + else if (pp->mediasize < SPA_MINDEVSIZE) + error = EINVAL; + if (error != 0) + g_access(cp, -1, 0, 0); + } if (error != 0) g_detach(cp); return (error);