471d591031
The args for XFS_IOC_FSGROWFSDATA and XFS_IOC_FSGROWFSRTA have padding on the end on intel, so add arg copyin functions, and then just call the growfs ioctl helpers. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
482 lines
13 KiB
C
482 lines
13 KiB
C
/*
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* Copyright (c) 2004-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/compat.h>
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#include <linux/init.h>
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#include <linux/ioctl.h>
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#include <linux/syscalls.h>
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#include <linux/types.h>
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#include <linux/fs.h>
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#include <asm/uaccess.h>
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_bit.h"
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#include "xfs_log.h"
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#include "xfs_inum.h"
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#include "xfs_trans.h"
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#include "xfs_sb.h"
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#include "xfs_ag.h"
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#include "xfs_dir2.h"
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#include "xfs_dmapi.h"
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#include "xfs_mount.h"
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#include "xfs_bmap_btree.h"
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#include "xfs_attr_sf.h"
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#include "xfs_dir2_sf.h"
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#include "xfs_vnode.h"
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#include "xfs_dinode.h"
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#include "xfs_inode.h"
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#include "xfs_itable.h"
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#include "xfs_error.h"
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#include "xfs_dfrag.h"
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#include "xfs_vnodeops.h"
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#include "xfs_fsops.h"
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#include "xfs_alloc.h"
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#include "xfs_rtalloc.h"
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#include "xfs_ioctl.h"
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#include "xfs_ioctl32.h"
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#define _NATIVE_IOC(cmd, type) \
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_IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
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#ifdef BROKEN_X86_ALIGNMENT
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STATIC int
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xfs_compat_flock64_copyin(
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xfs_flock64_t *bf,
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compat_xfs_flock64_t __user *arg32)
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{
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if (get_user(bf->l_type, &arg32->l_type) ||
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get_user(bf->l_whence, &arg32->l_whence) ||
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get_user(bf->l_start, &arg32->l_start) ||
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get_user(bf->l_len, &arg32->l_len) ||
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get_user(bf->l_sysid, &arg32->l_sysid) ||
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get_user(bf->l_pid, &arg32->l_pid) ||
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copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
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return -XFS_ERROR(EFAULT);
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return 0;
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}
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STATIC int
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xfs_compat_ioc_fsgeometry_v1(
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struct xfs_mount *mp,
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compat_xfs_fsop_geom_v1_t __user *arg32)
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{
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xfs_fsop_geom_t fsgeo;
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int error;
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error = xfs_fs_geometry(mp, &fsgeo, 3);
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if (error)
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return -error;
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/* The 32-bit variant simply has some padding at the end */
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if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
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return -XFS_ERROR(EFAULT);
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return 0;
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}
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STATIC int
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xfs_compat_growfs_data_copyin(
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struct xfs_growfs_data *in,
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compat_xfs_growfs_data_t __user *arg32)
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{
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if (get_user(in->newblocks, &arg32->newblocks) ||
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get_user(in->imaxpct, &arg32->imaxpct))
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return -XFS_ERROR(EFAULT);
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return 0;
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}
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STATIC int
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xfs_compat_growfs_rt_copyin(
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struct xfs_growfs_rt *in,
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compat_xfs_growfs_rt_t __user *arg32)
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{
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if (get_user(in->newblocks, &arg32->newblocks) ||
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get_user(in->extsize, &arg32->extsize))
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return -XFS_ERROR(EFAULT);
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return 0;
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}
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STATIC int
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xfs_inumbers_fmt_compat(
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void __user *ubuffer,
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const xfs_inogrp_t *buffer,
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long count,
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long *written)
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{
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compat_xfs_inogrp_t __user *p32 = ubuffer;
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long i;
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for (i = 0; i < count; i++) {
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if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
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put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
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put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
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return -XFS_ERROR(EFAULT);
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}
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*written = count * sizeof(*p32);
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return 0;
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}
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#else
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#define xfs_inumbers_fmt_compat xfs_inumbers_fmt
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#endif
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STATIC int
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xfs_ioctl32_bstime_copyin(
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xfs_bstime_t *bstime,
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compat_xfs_bstime_t __user *bstime32)
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{
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compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
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if (get_user(sec32, &bstime32->tv_sec) ||
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get_user(bstime->tv_nsec, &bstime32->tv_nsec))
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return -XFS_ERROR(EFAULT);
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bstime->tv_sec = sec32;
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return 0;
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}
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/* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
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STATIC int
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xfs_ioctl32_bstat_copyin(
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xfs_bstat_t *bstat,
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compat_xfs_bstat_t __user *bstat32)
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{
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if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
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get_user(bstat->bs_mode, &bstat32->bs_mode) ||
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get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
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get_user(bstat->bs_uid, &bstat32->bs_uid) ||
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get_user(bstat->bs_gid, &bstat32->bs_gid) ||
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get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
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get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
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get_user(bstat->bs_size, &bstat32->bs_size) ||
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xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
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xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
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xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
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get_user(bstat->bs_blocks, &bstat32->bs_size) ||
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get_user(bstat->bs_xflags, &bstat32->bs_size) ||
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get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
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get_user(bstat->bs_extents, &bstat32->bs_extents) ||
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get_user(bstat->bs_gen, &bstat32->bs_gen) ||
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get_user(bstat->bs_projid, &bstat32->bs_projid) ||
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get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
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get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
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get_user(bstat->bs_aextents, &bstat32->bs_aextents))
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return -XFS_ERROR(EFAULT);
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return 0;
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}
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/* XFS_IOC_FSBULKSTAT and friends */
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STATIC int
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xfs_bstime_store_compat(
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compat_xfs_bstime_t __user *p32,
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const xfs_bstime_t *p)
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{
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__s32 sec32;
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sec32 = p->tv_sec;
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if (put_user(sec32, &p32->tv_sec) ||
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put_user(p->tv_nsec, &p32->tv_nsec))
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return -XFS_ERROR(EFAULT);
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return 0;
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}
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STATIC int
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xfs_bulkstat_one_fmt_compat(
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void __user *ubuffer,
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const xfs_bstat_t *buffer)
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{
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compat_xfs_bstat_t __user *p32 = ubuffer;
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if (put_user(buffer->bs_ino, &p32->bs_ino) ||
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put_user(buffer->bs_mode, &p32->bs_mode) ||
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put_user(buffer->bs_nlink, &p32->bs_nlink) ||
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put_user(buffer->bs_uid, &p32->bs_uid) ||
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put_user(buffer->bs_gid, &p32->bs_gid) ||
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put_user(buffer->bs_rdev, &p32->bs_rdev) ||
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put_user(buffer->bs_blksize, &p32->bs_blksize) ||
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put_user(buffer->bs_size, &p32->bs_size) ||
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xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
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xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
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xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
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put_user(buffer->bs_blocks, &p32->bs_blocks) ||
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put_user(buffer->bs_xflags, &p32->bs_xflags) ||
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put_user(buffer->bs_extsize, &p32->bs_extsize) ||
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put_user(buffer->bs_extents, &p32->bs_extents) ||
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put_user(buffer->bs_gen, &p32->bs_gen) ||
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put_user(buffer->bs_projid, &p32->bs_projid) ||
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put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
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put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
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put_user(buffer->bs_aextents, &p32->bs_aextents))
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return -XFS_ERROR(EFAULT);
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return sizeof(*p32);
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}
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/* copied from xfs_ioctl.c */
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STATIC int
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xfs_ioc_bulkstat_compat(
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xfs_mount_t *mp,
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unsigned int cmd,
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void __user *arg)
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{
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compat_xfs_fsop_bulkreq_t __user *p32 = (void __user *)arg;
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u32 addr;
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xfs_fsop_bulkreq_t bulkreq;
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int count; /* # of records returned */
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xfs_ino_t inlast; /* last inode number */
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int done;
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int error;
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/* done = 1 if there are more stats to get and if bulkstat */
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/* should be called again (unused here, but used in dmapi) */
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if (!capable(CAP_SYS_ADMIN))
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return -XFS_ERROR(EPERM);
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if (XFS_FORCED_SHUTDOWN(mp))
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return -XFS_ERROR(EIO);
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if (get_user(addr, &p32->lastip))
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return -XFS_ERROR(EFAULT);
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bulkreq.lastip = compat_ptr(addr);
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if (get_user(bulkreq.icount, &p32->icount) ||
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get_user(addr, &p32->ubuffer))
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return -XFS_ERROR(EFAULT);
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bulkreq.ubuffer = compat_ptr(addr);
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if (get_user(addr, &p32->ocount))
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return -XFS_ERROR(EFAULT);
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bulkreq.ocount = compat_ptr(addr);
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if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
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return -XFS_ERROR(EFAULT);
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if ((count = bulkreq.icount) <= 0)
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return -XFS_ERROR(EINVAL);
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if (bulkreq.ubuffer == NULL)
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return -XFS_ERROR(EINVAL);
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if (cmd == XFS_IOC_FSINUMBERS)
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error = xfs_inumbers(mp, &inlast, &count,
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bulkreq.ubuffer, xfs_inumbers_fmt_compat);
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else {
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/* declare a var to get a warning in case the type changes */
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bulkstat_one_fmt_pf formatter = xfs_bulkstat_one_fmt_compat;
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error = xfs_bulkstat(mp, &inlast, &count,
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xfs_bulkstat_one, formatter,
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sizeof(compat_xfs_bstat_t), bulkreq.ubuffer,
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BULKSTAT_FG_QUICK, &done);
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}
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if (error)
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return -error;
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if (bulkreq.ocount != NULL) {
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if (copy_to_user(bulkreq.lastip, &inlast,
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sizeof(xfs_ino_t)))
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return -XFS_ERROR(EFAULT);
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if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
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return -XFS_ERROR(EFAULT);
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}
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return 0;
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}
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STATIC int
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xfs_compat_handlereq_copyin(
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xfs_fsop_handlereq_t *hreq,
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compat_xfs_fsop_handlereq_t __user *arg32)
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{
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compat_xfs_fsop_handlereq_t hreq32;
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if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
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return -XFS_ERROR(EFAULT);
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hreq->fd = hreq32.fd;
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hreq->path = compat_ptr(hreq32.path);
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hreq->oflags = hreq32.oflags;
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hreq->ihandle = compat_ptr(hreq32.ihandle);
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hreq->ihandlen = hreq32.ihandlen;
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hreq->ohandle = compat_ptr(hreq32.ohandle);
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hreq->ohandlen = compat_ptr(hreq32.ohandlen);
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return 0;
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}
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STATIC long
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xfs_compat_ioctl(
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xfs_inode_t *ip,
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struct file *filp,
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int ioflags,
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unsigned cmd,
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void __user *arg)
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{
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struct inode *inode = filp->f_path.dentry->d_inode;
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xfs_mount_t *mp = ip->i_mount;
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int error;
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xfs_itrace_entry(XFS_I(inode));
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switch (cmd) {
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case XFS_IOC_DIOINFO:
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case XFS_IOC_FSGEOMETRY:
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case XFS_IOC_FSGETXATTR:
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case XFS_IOC_FSSETXATTR:
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case XFS_IOC_FSGETXATTRA:
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case XFS_IOC_FSSETDM:
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case XFS_IOC_GETBMAP:
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case XFS_IOC_GETBMAPA:
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case XFS_IOC_GETBMAPX:
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/* not handled
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case XFS_IOC_FSSETDM_BY_HANDLE:
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case XFS_IOC_ATTRLIST_BY_HANDLE:
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case XFS_IOC_ATTRMULTI_BY_HANDLE:
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*/
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case XFS_IOC_FSCOUNTS:
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case XFS_IOC_SET_RESBLKS:
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case XFS_IOC_GET_RESBLKS:
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case XFS_IOC_FSGROWFSDATA:
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case XFS_IOC_FSGROWFSLOG:
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case XFS_IOC_FSGROWFSRT:
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case XFS_IOC_FREEZE:
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case XFS_IOC_THAW:
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case XFS_IOC_GOINGDOWN:
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case XFS_IOC_ERROR_INJECTION:
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case XFS_IOC_ERROR_CLEARALL:
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break;
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case XFS_IOC_GETXFLAGS_32:
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case XFS_IOC_SETXFLAGS_32:
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case XFS_IOC_GETVERSION_32:
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cmd = _NATIVE_IOC(cmd, long);
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break;
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case XFS_IOC_SWAPEXT: {
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struct xfs_swapext sxp;
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struct compat_xfs_swapext __user *sxu = arg;
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/* Bulk copy in up to the sx_stat field, then grab bstat */
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if (copy_from_user(&sxp, sxu,
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offsetof(xfs_swapext_t, sx_stat)) ||
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xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
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return -XFS_ERROR(EFAULT);
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error = xfs_swapext(&sxp);
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return -error;
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}
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#ifdef BROKEN_X86_ALIGNMENT
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/* xfs_flock_t has wrong u32 vs u64 alignment */
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case XFS_IOC_ALLOCSP_32:
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case XFS_IOC_FREESP_32:
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case XFS_IOC_ALLOCSP64_32:
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case XFS_IOC_FREESP64_32:
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case XFS_IOC_RESVSP_32:
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case XFS_IOC_UNRESVSP_32:
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case XFS_IOC_RESVSP64_32:
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case XFS_IOC_UNRESVSP64_32: {
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struct xfs_flock64 bf;
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if (xfs_compat_flock64_copyin(&bf, arg))
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return -XFS_ERROR(EFAULT);
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cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
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return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
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}
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case XFS_IOC_FSGEOMETRY_V1_32:
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return xfs_compat_ioc_fsgeometry_v1(mp, arg);
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case XFS_IOC_FSGROWFSDATA_32: {
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struct xfs_growfs_data in;
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if (xfs_compat_growfs_data_copyin(&in, arg))
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return -XFS_ERROR(EFAULT);
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error = xfs_growfs_data(mp, &in);
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return -error;
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}
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case XFS_IOC_FSGROWFSRT_32: {
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struct xfs_growfs_rt in;
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if (xfs_compat_growfs_rt_copyin(&in, arg))
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return -XFS_ERROR(EFAULT);
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error = xfs_growfs_rt(mp, &in);
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return -error;
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}
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#else /* These are handled fine if no alignment issues */
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case XFS_IOC_ALLOCSP:
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case XFS_IOC_FREESP:
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case XFS_IOC_RESVSP:
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case XFS_IOC_UNRESVSP:
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case XFS_IOC_ALLOCSP64:
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case XFS_IOC_FREESP64:
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case XFS_IOC_RESVSP64:
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case XFS_IOC_UNRESVSP64:
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case XFS_IOC_FSGEOMETRY_V1:
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break;
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#endif
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case XFS_IOC_FSBULKSTAT_32:
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case XFS_IOC_FSBULKSTAT_SINGLE_32:
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case XFS_IOC_FSINUMBERS_32:
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cmd = _NATIVE_IOC(cmd, struct xfs_fsop_bulkreq);
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return xfs_ioc_bulkstat_compat(XFS_I(inode)->i_mount,
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cmd, (void __user*)arg);
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case XFS_IOC_FD_TO_HANDLE_32:
|
|
case XFS_IOC_PATH_TO_HANDLE_32:
|
|
case XFS_IOC_PATH_TO_FSHANDLE_32: {
|
|
struct xfs_fsop_handlereq hreq;
|
|
|
|
if (xfs_compat_handlereq_copyin(&hreq, arg))
|
|
return -XFS_ERROR(EFAULT);
|
|
cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
|
|
return xfs_find_handle(cmd, &hreq);
|
|
}
|
|
case XFS_IOC_OPEN_BY_HANDLE_32: {
|
|
struct xfs_fsop_handlereq hreq;
|
|
|
|
if (xfs_compat_handlereq_copyin(&hreq, arg))
|
|
return -XFS_ERROR(EFAULT);
|
|
return xfs_open_by_handle(mp, &hreq, filp, inode);
|
|
}
|
|
case XFS_IOC_READLINK_BY_HANDLE_32: {
|
|
struct xfs_fsop_handlereq hreq;
|
|
|
|
if (xfs_compat_handlereq_copyin(&hreq, arg))
|
|
return -XFS_ERROR(EFAULT);
|
|
return xfs_readlink_by_handle(mp, &hreq, inode);
|
|
}
|
|
default:
|
|
return -XFS_ERROR(ENOIOCTLCMD);
|
|
}
|
|
|
|
error = xfs_ioctl(ip, filp, ioflags, cmd, arg);
|
|
return error;
|
|
}
|
|
|
|
long
|
|
xfs_file_compat_ioctl(
|
|
struct file *filp,
|
|
unsigned int cmd,
|
|
unsigned long p)
|
|
{
|
|
struct inode *inode = filp->f_path.dentry->d_inode;
|
|
|
|
return xfs_compat_ioctl(XFS_I(inode), filp, 0, cmd, (void __user *)p);
|
|
}
|
|
|
|
long
|
|
xfs_file_compat_invis_ioctl(
|
|
struct file *filp,
|
|
unsigned int cmd,
|
|
unsigned long p)
|
|
{
|
|
struct inode *inode = filp->f_path.dentry->d_inode;
|
|
|
|
return xfs_compat_ioctl(XFS_I(inode), filp, IO_INVIS, cmd,
|
|
(void __user *)p);
|
|
}
|