diff options
Diffstat (limited to 'sys/geom/geom_vol_ffs.c')
| -rw-r--r-- | sys/geom/geom_vol_ffs.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/sys/geom/geom_vol_ffs.c b/sys/geom/geom_vol_ffs.c deleted file mode 100644 index 82b8eaa8d8ab5..0000000000000 --- a/sys/geom/geom_vol_ffs.c +++ /dev/null @@ -1,167 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD - * - * Copyright (c) 2002, 2003 Gordon Tetlow - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/errno.h> -#include <sys/systm.h> -#include <sys/sysctl.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/bio.h> -#include <sys/lock.h> -#include <sys/mutex.h> - -#include <ufs/ufs/dinode.h> -#include <ufs/ffs/fs.h> - -#include <geom/geom.h> -#include <geom/geom_slice.h> - -FEATURE(geom_vol, "GEOM support for volume names from UFS superblock"); - -#define VOL_FFS_CLASS_NAME "VOL_FFS" - -static int superblocks[] = SBLOCKSEARCH; -static int g_vol_ffs_once; - -struct g_vol_ffs_softc { - char * vol; -}; - -static int -g_vol_ffs_start(struct bio *bp __unused) -{ - return(0); -} - -static struct g_geom * -g_vol_ffs_taste(struct g_class *mp, struct g_provider *pp, int flags) -{ - struct g_geom *gp; - struct g_consumer *cp; - struct g_vol_ffs_softc *ms; - int sb, superblock; - struct fs *fs; - - g_trace(G_T_TOPOLOGY, "vol_taste(%s,%s)", mp->name, pp->name); - g_topology_assert(); - - /* - * XXX This is a really weak way to make sure we don't recurse. - * Probably ought to use BIO_GETATTR to check for this. - */ - if (flags == G_TF_NORMAL && - !strcmp(pp->geom->class->name, VOL_FFS_CLASS_NAME)) - return (NULL); - - gp = g_slice_new(mp, 1, pp, &cp, &ms, sizeof(*ms), g_vol_ffs_start); - if (gp == NULL) - return (NULL); - g_topology_unlock(); - /* - * Walk through the standard places that superblocks hide and look - * for UFS magic. If we find magic, then check that the size in the - * superblock corresponds to the size of the underlying provider. - * Finally, look for a volume label and create an appropriate - * provider based on that. - */ - for (sb=0; (superblock = superblocks[sb]) != -1; sb++) { - /* - * Take care not to issue an invalid I/O request. The - * offset and size of the superblock candidate must be - * multiples of the provider's sector size, otherwise an - * FFS can't exist on the provider anyway. - */ - if (superblock % cp->provider->sectorsize != 0 || - SBLOCKSIZE % cp->provider->sectorsize != 0) - continue; - - fs = (struct fs *) g_read_data(cp, superblock, - SBLOCKSIZE, NULL); - if (fs == NULL) - continue; - /* Check for magic and make sure things are the right size */ - if (fs->fs_magic == FS_UFS1_MAGIC) { - if (fs->fs_old_size * fs->fs_fsize != - (int32_t) pp->mediasize) { - g_free(fs); - continue; - } - } else if (fs->fs_magic == FS_UFS2_MAGIC) { - if (fs->fs_size * fs->fs_fsize != - (int64_t) pp->mediasize) { - g_free(fs); - continue; - } - } else { - g_free(fs); - continue; - } - /* Check for volume label */ - if (fs->fs_volname[0] == '\0') { - g_free(fs); - continue; - } - /* XXX We need to check for namespace conflicts. */ - /* XXX How do you handle a mirror set? */ - /* XXX We don't validate the volume name. */ - g_topology_lock(); - /* Alright, we have a label and a volume name, reconfig. */ - g_slice_config(gp, 0, G_SLICE_CONFIG_SET, (off_t) 0, - pp->mediasize, pp->sectorsize, "vol/%s", - fs->fs_volname); - g_free(fs); - g_topology_unlock(); - break; - } - g_topology_lock(); - g_access(cp, -1, 0, 0); - if (LIST_EMPTY(&gp->provider)) { - g_slice_spoiled(cp); - return (NULL); - } - if (!g_vol_ffs_once) { - g_vol_ffs_once = 1; - printf( - "WARNING: geom_vol_Ffs (geom %s) is deprecated, " - "use glabel instead.\n", gp->name); - } - return (gp); -} - -static struct g_class g_vol_ffs_class = { - .name = VOL_FFS_CLASS_NAME, - .version = G_VERSION, - .taste = g_vol_ffs_taste, -}; - -DECLARE_GEOM_CLASS(g_vol_ffs_class, g_vol_ffs); -MODULE_VERSION(geom_vol_ffs, 0); |