2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "xfs_trans.h"
27 #include "xfs_alloc.h"
28 #include "xfs_dmapi.h"
29 #include "xfs_mount.h"
30 #include "xfs_bmap_btree.h"
31 #include "xfs_alloc_btree.h"
32 #include "xfs_ialloc_btree.h"
33 #include "xfs_attr_sf.h"
34 #include "xfs_dir2_sf.h"
35 #include "xfs_dinode.h"
36 #include "xfs_inode.h"
37 #include "xfs_btree.h"
38 #include "xfs_ialloc.h"
39 #include "xfs_rtalloc.h"
40 #include "xfs_itable.h"
41 #include "xfs_error.h"
46 #include "xfs_buf_item.h"
47 #include "xfs_utils.h"
48 #include "xfs_dfrag.h"
49 #include "xfs_fsops.h"
50 #include "xfs_vnodeops.h"
52 #include <linux/capability.h>
53 #include <linux/dcache.h>
54 #include <linux/mount.h>
55 #include <linux/namei.h>
56 #include <linux/pagemap.h>
59 * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to
60 * a file or fs handle.
62 * XFS_IOC_PATH_TO_FSHANDLE
63 * returns fs handle for a mount point or path within that mount point
64 * XFS_IOC_FD_TO_HANDLE
65 * returns full handle for a FD opened in user space
66 * XFS_IOC_PATH_TO_HANDLE
67 * returns full handle for a path
76 xfs_fsop_handlereq_t hreq;
80 if (copy_from_user(&hreq, arg, sizeof(hreq)))
81 return -XFS_ERROR(EFAULT);
83 memset((char *)&handle, 0, sizeof(handle));
86 case XFS_IOC_PATH_TO_FSHANDLE:
87 case XFS_IOC_PATH_TO_HANDLE: {
91 error = user_path_walk_link((const char __user *)hreq.path, &nd);
96 ASSERT(nd.dentry->d_inode);
97 inode = igrab(nd.dentry->d_inode);
102 case XFS_IOC_FD_TO_HANDLE: {
105 file = fget(hreq.fd);
109 ASSERT(file->f_path.dentry);
110 ASSERT(file->f_path.dentry->d_inode);
111 inode = igrab(file->f_path.dentry->d_inode);
118 return -XFS_ERROR(EINVAL);
121 if (inode->i_sb->s_magic != XFS_SB_MAGIC) {
122 /* we're not in XFS anymore, Toto */
124 return -XFS_ERROR(EINVAL);
127 switch (inode->i_mode & S_IFMT) {
134 return -XFS_ERROR(EBADF);
137 /* we need the vnode */
138 vp = vn_from_inode(inode);
140 /* now we can grab the fsid */
141 memcpy(&handle.ha_fsid, vp->v_vfsp->vfs_altfsid, sizeof(xfs_fsid_t));
142 hsize = sizeof(xfs_fsid_t);
144 if (cmd != XFS_IOC_PATH_TO_FSHANDLE) {
148 /* need to get access to the xfs_inode to read the generation */
151 lock_mode = xfs_ilock_map_shared(ip);
153 /* fill in fid section of handle from inode */
154 handle.ha_fid.xfs_fid_len = sizeof(xfs_fid_t) -
155 sizeof(handle.ha_fid.xfs_fid_len);
156 handle.ha_fid.xfs_fid_pad = 0;
157 handle.ha_fid.xfs_fid_gen = ip->i_d.di_gen;
158 handle.ha_fid.xfs_fid_ino = ip->i_ino;
160 xfs_iunlock_map_shared(ip, lock_mode);
162 hsize = XFS_HSIZE(handle);
165 /* now copy our handle into the user buffer & write out the size */
166 if (copy_to_user(hreq.ohandle, &handle, hsize) ||
167 copy_to_user(hreq.ohandlen, &hsize, sizeof(__s32))) {
169 return -XFS_ERROR(EFAULT);
178 * Convert userspace handle data into vnode (and inode).
179 * We [ab]use the fact that all the fsop_handlereq ioctl calls
180 * have a data structure argument whose first component is always
181 * a xfs_fsop_handlereq_t, so we can cast to and from this type.
182 * This allows us to optimise the copy_from_user calls and gives
183 * a handy, shared routine.
185 * If no error, caller must always VN_RELE the returned vp.
188 xfs_vget_fsop_handlereq(
190 struct inode *parinode, /* parent inode pointer */
191 xfs_fsop_handlereq_t *hreq,
193 struct inode **inode)
198 xfs_handle_t *handlep;
201 struct inode *inodep;
208 * Only allow handle opens under a directory.
210 if (!S_ISDIR(parinode->i_mode))
211 return XFS_ERROR(ENOTDIR);
213 hanp = hreq->ihandle;
214 hlen = hreq->ihandlen;
217 if (hlen < sizeof(handlep->ha_fsid) || hlen > sizeof(*handlep))
218 return XFS_ERROR(EINVAL);
219 if (copy_from_user(handlep, hanp, hlen))
220 return XFS_ERROR(EFAULT);
221 if (hlen < sizeof(*handlep))
222 memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen);
223 if (hlen > sizeof(handlep->ha_fsid)) {
224 if (handlep->ha_fid.xfs_fid_len !=
225 (hlen - sizeof(handlep->ha_fsid)
226 - sizeof(handlep->ha_fid.xfs_fid_len))
227 || handlep->ha_fid.xfs_fid_pad)
228 return XFS_ERROR(EINVAL);
232 * Crack the handle, obtain the inode # & generation #
234 xfid = (struct xfs_fid *)&handlep->ha_fid;
235 if (xfid->xfs_fid_len == sizeof(*xfid) - sizeof(xfid->xfs_fid_len)) {
236 ino = xfid->xfs_fid_ino;
237 igen = xfid->xfs_fid_gen;
239 return XFS_ERROR(EINVAL);
243 * Get the XFS inode, building a vnode to go with it.
245 error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
249 return XFS_ERROR(EIO);
250 if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
251 xfs_iput_new(ip, XFS_ILOCK_SHARED);
252 return XFS_ERROR(ENOENT);
256 inodep = vn_to_inode(vpp);
257 xfs_iunlock(ip, XFS_ILOCK_SHARED);
268 struct file *parfilp,
269 struct inode *parinode)
276 struct dentry *dentry;
278 xfs_fsop_handlereq_t hreq;
280 if (!capable(CAP_SYS_ADMIN))
281 return -XFS_ERROR(EPERM);
282 if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t)))
283 return -XFS_ERROR(EFAULT);
285 error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &vp, &inode);
289 /* Restrict xfs_open_by_handle to directories & regular files. */
290 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) {
292 return -XFS_ERROR(EINVAL);
295 #if BITS_PER_LONG != 32
296 hreq.oflags |= O_LARGEFILE;
298 /* Put open permission in namei format. */
299 permflag = hreq.oflags;
300 if ((permflag+1) & O_ACCMODE)
302 if (permflag & O_TRUNC)
305 if ((!(permflag & O_APPEND) || (permflag & O_TRUNC)) &&
306 (permflag & FMODE_WRITE) && IS_APPEND(inode)) {
308 return -XFS_ERROR(EPERM);
311 if ((permflag & FMODE_WRITE) && IS_IMMUTABLE(inode)) {
313 return -XFS_ERROR(EACCES);
316 /* Can't write directories. */
317 if ( S_ISDIR(inode->i_mode) && (permflag & FMODE_WRITE)) {
319 return -XFS_ERROR(EISDIR);
322 if ((new_fd = get_unused_fd()) < 0) {
327 dentry = d_alloc_anon(inode);
328 if (dentry == NULL) {
330 put_unused_fd(new_fd);
331 return -XFS_ERROR(ENOMEM);
334 /* Ensure umount returns EBUSY on umounts while this file is open. */
335 mntget(parfilp->f_path.mnt);
337 /* Create file pointer. */
338 filp = dentry_open(dentry, parfilp->f_path.mnt, hreq.oflags);
340 put_unused_fd(new_fd);
341 return -XFS_ERROR(-PTR_ERR(filp));
343 if (inode->i_mode & S_IFREG) {
344 /* invisible operation should not change atime */
345 filp->f_flags |= O_NOATIME;
346 filp->f_op = &xfs_invis_file_operations;
349 fd_install(new_fd, filp);
354 * This is a copy from fs/namei.c:vfs_readlink(), except for removing it's
355 * unused first argument.
370 if (len > (unsigned) buflen)
372 if (copy_to_user(buffer, link, len))
380 xfs_readlink_by_handle(
383 struct inode *parinode)
386 xfs_fsop_handlereq_t hreq;
392 if (!capable(CAP_SYS_ADMIN))
393 return -XFS_ERROR(EPERM);
394 if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t)))
395 return -XFS_ERROR(EFAULT);
397 error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &vp, &inode);
401 /* Restrict this handle operation to symlinks only. */
402 if (!S_ISLNK(inode->i_mode)) {
403 error = -XFS_ERROR(EINVAL);
407 if (copy_from_user(&olen, hreq.ohandlen, sizeof(__u32))) {
408 error = -XFS_ERROR(EFAULT);
412 link = kmalloc(MAXPATHLEN+1, GFP_KERNEL);
416 error = -bhv_vop_readlink(vp, link);
419 error = do_readlink(hreq.ohandle, olen, link);
431 xfs_fssetdm_by_handle(
434 struct inode *parinode)
437 struct fsdmidata fsd;
438 xfs_fsop_setdm_handlereq_t dmhreq;
442 if (!capable(CAP_MKNOD))
443 return -XFS_ERROR(EPERM);
444 if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t)))
445 return -XFS_ERROR(EFAULT);
447 error = xfs_vget_fsop_handlereq(mp, parinode, &dmhreq.hreq, &vp, &inode);
451 if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
453 return -XFS_ERROR(EPERM);
456 if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) {
458 return -XFS_ERROR(EFAULT);
461 error = xfs_set_dmattrs(xfs_vtoi(vp),
462 fsd.fsd_dmevmask, fsd.fsd_dmstate);
471 xfs_attrlist_by_handle(
474 struct inode *parinode)
477 attrlist_cursor_kern_t *cursor;
478 xfs_fsop_attrlist_handlereq_t al_hreq;
483 if (!capable(CAP_SYS_ADMIN))
484 return -XFS_ERROR(EPERM);
485 if (copy_from_user(&al_hreq, arg, sizeof(xfs_fsop_attrlist_handlereq_t)))
486 return -XFS_ERROR(EFAULT);
487 if (al_hreq.buflen > XATTR_LIST_MAX)
488 return -XFS_ERROR(EINVAL);
490 error = xfs_vget_fsop_handlereq(mp, parinode, &al_hreq.hreq,
495 kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
499 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
500 error = bhv_vop_attr_list(vp, kbuf, al_hreq.buflen, al_hreq.flags,
505 if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen))
517 xfs_attrmulti_attr_get(
527 if (*len > XATTR_SIZE_MAX)
529 kbuf = kmalloc(*len, GFP_KERNEL);
533 error = bhv_vop_attr_get(vp, name, kbuf, len, flags, NULL);
537 if (copy_to_user(ubuf, kbuf, *len))
546 xfs_attrmulti_attr_set(
549 const char __user *ubuf,
556 if (IS_RDONLY(&vp->v_inode))
558 if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode))
560 if (len > XATTR_SIZE_MAX)
563 kbuf = kmalloc(len, GFP_KERNEL);
567 if (copy_from_user(kbuf, ubuf, len))
570 error = bhv_vop_attr_set(vp, name, kbuf, len, flags, NULL);
578 xfs_attrmulti_attr_remove(
583 if (IS_RDONLY(&vp->v_inode))
585 if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode))
587 return bhv_vop_attr_remove(vp, name, flags, NULL);
591 xfs_attrmulti_by_handle(
594 struct inode *parinode)
597 xfs_attr_multiop_t *ops;
598 xfs_fsop_attrmulti_handlereq_t am_hreq;
601 unsigned int i, size;
604 if (!capable(CAP_SYS_ADMIN))
605 return -XFS_ERROR(EPERM);
606 if (copy_from_user(&am_hreq, arg, sizeof(xfs_fsop_attrmulti_handlereq_t)))
607 return -XFS_ERROR(EFAULT);
609 error = xfs_vget_fsop_handlereq(mp, parinode, &am_hreq.hreq, &vp, &inode);
614 size = am_hreq.opcount * sizeof(attr_multiop_t);
615 if (!size || size > 16 * PAGE_SIZE)
619 ops = kmalloc(size, GFP_KERNEL);
624 if (copy_from_user(ops, am_hreq.ops, size))
627 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
633 for (i = 0; i < am_hreq.opcount; i++) {
634 ops[i].am_error = strncpy_from_user(attr_name,
635 ops[i].am_attrname, MAXNAMELEN);
636 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
638 if (ops[i].am_error < 0)
641 switch (ops[i].am_opcode) {
643 ops[i].am_error = xfs_attrmulti_attr_get(vp,
644 attr_name, ops[i].am_attrvalue,
645 &ops[i].am_length, ops[i].am_flags);
648 ops[i].am_error = xfs_attrmulti_attr_set(vp,
649 attr_name, ops[i].am_attrvalue,
650 ops[i].am_length, ops[i].am_flags);
653 ops[i].am_error = xfs_attrmulti_attr_remove(vp,
654 attr_name, ops[i].am_flags);
657 ops[i].am_error = EINVAL;
661 if (copy_to_user(am_hreq.ops, ops, size))
662 error = XFS_ERROR(EFAULT);
673 /* prototypes for a few of the stack-hungry cases that have
674 * their own functions. Functions are defined after their use
675 * so gcc doesn't get fancy and inline them with -03 */
679 struct xfs_inode *ip,
693 xfs_ioc_fsgeometry_v1(
712 struct xfs_inode *ip,
719 struct xfs_inode *ip,
730 struct inode *inode = filp->f_path.dentry->d_inode;
731 bhv_vnode_t *vp = vn_from_inode(inode);
732 xfs_mount_t *mp = ip->i_mount;
735 vn_trace_entry(vp, "xfs_ioctl", (inst_t *)__return_address);
739 case XFS_IOC_ALLOCSP:
742 case XFS_IOC_UNRESVSP:
743 case XFS_IOC_ALLOCSP64:
744 case XFS_IOC_FREESP64:
745 case XFS_IOC_RESVSP64:
746 case XFS_IOC_UNRESVSP64:
748 * Only allow the sys admin to reserve space unless
749 * unwritten extents are enabled.
751 if (!XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) &&
752 !capable(CAP_SYS_ADMIN))
755 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg);
757 case XFS_IOC_DIOINFO: {
759 xfs_buftarg_t *target =
760 (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
761 mp->m_rtdev_targp : mp->m_ddev_targp;
763 da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
764 da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
766 if (copy_to_user(arg, &da, sizeof(da)))
767 return -XFS_ERROR(EFAULT);
771 case XFS_IOC_FSBULKSTAT_SINGLE:
772 case XFS_IOC_FSBULKSTAT:
773 case XFS_IOC_FSINUMBERS:
774 return xfs_ioc_bulkstat(mp, cmd, arg);
776 case XFS_IOC_FSGEOMETRY_V1:
777 return xfs_ioc_fsgeometry_v1(mp, arg);
779 case XFS_IOC_FSGEOMETRY:
780 return xfs_ioc_fsgeometry(mp, arg);
782 case XFS_IOC_GETVERSION:
783 return put_user(inode->i_generation, (int __user *)arg);
785 case XFS_IOC_GETXFLAGS:
786 case XFS_IOC_SETXFLAGS:
787 case XFS_IOC_FSGETXATTR:
788 case XFS_IOC_FSSETXATTR:
789 case XFS_IOC_FSGETXATTRA:
790 return xfs_ioc_xattr(vp, ip, filp, cmd, arg);
792 case XFS_IOC_FSSETDM: {
793 struct fsdmidata dmi;
795 if (copy_from_user(&dmi, arg, sizeof(dmi)))
796 return -XFS_ERROR(EFAULT);
798 error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask,
803 case XFS_IOC_GETBMAP:
804 case XFS_IOC_GETBMAPA:
805 return xfs_ioc_getbmap(ip, ioflags, cmd, arg);
807 case XFS_IOC_GETBMAPX:
808 return xfs_ioc_getbmapx(ip, arg);
810 case XFS_IOC_FD_TO_HANDLE:
811 case XFS_IOC_PATH_TO_HANDLE:
812 case XFS_IOC_PATH_TO_FSHANDLE:
813 return xfs_find_handle(cmd, arg);
815 case XFS_IOC_OPEN_BY_HANDLE:
816 return xfs_open_by_handle(mp, arg, filp, inode);
818 case XFS_IOC_FSSETDM_BY_HANDLE:
819 return xfs_fssetdm_by_handle(mp, arg, inode);
821 case XFS_IOC_READLINK_BY_HANDLE:
822 return xfs_readlink_by_handle(mp, arg, inode);
824 case XFS_IOC_ATTRLIST_BY_HANDLE:
825 return xfs_attrlist_by_handle(mp, arg, inode);
827 case XFS_IOC_ATTRMULTI_BY_HANDLE:
828 return xfs_attrmulti_by_handle(mp, arg, inode);
830 case XFS_IOC_SWAPEXT: {
831 error = xfs_swapext((struct xfs_swapext __user *)arg);
835 case XFS_IOC_FSCOUNTS: {
836 xfs_fsop_counts_t out;
838 error = xfs_fs_counts(mp, &out);
842 if (copy_to_user(arg, &out, sizeof(out)))
843 return -XFS_ERROR(EFAULT);
847 case XFS_IOC_SET_RESBLKS: {
848 xfs_fsop_resblks_t inout;
851 if (!capable(CAP_SYS_ADMIN))
854 if (copy_from_user(&inout, arg, sizeof(inout)))
855 return -XFS_ERROR(EFAULT);
857 /* input parameter is passed in resblks field of structure */
859 error = xfs_reserve_blocks(mp, &in, &inout);
863 if (copy_to_user(arg, &inout, sizeof(inout)))
864 return -XFS_ERROR(EFAULT);
868 case XFS_IOC_GET_RESBLKS: {
869 xfs_fsop_resblks_t out;
871 if (!capable(CAP_SYS_ADMIN))
874 error = xfs_reserve_blocks(mp, NULL, &out);
878 if (copy_to_user(arg, &out, sizeof(out)))
879 return -XFS_ERROR(EFAULT);
884 case XFS_IOC_FSGROWFSDATA: {
885 xfs_growfs_data_t in;
887 if (!capable(CAP_SYS_ADMIN))
890 if (copy_from_user(&in, arg, sizeof(in)))
891 return -XFS_ERROR(EFAULT);
893 error = xfs_growfs_data(mp, &in);
897 case XFS_IOC_FSGROWFSLOG: {
900 if (!capable(CAP_SYS_ADMIN))
903 if (copy_from_user(&in, arg, sizeof(in)))
904 return -XFS_ERROR(EFAULT);
906 error = xfs_growfs_log(mp, &in);
910 case XFS_IOC_FSGROWFSRT: {
913 if (!capable(CAP_SYS_ADMIN))
916 if (copy_from_user(&in, arg, sizeof(in)))
917 return -XFS_ERROR(EFAULT);
919 error = xfs_growfs_rt(mp, &in);
924 if (!capable(CAP_SYS_ADMIN))
927 if (inode->i_sb->s_frozen == SB_UNFROZEN)
928 freeze_bdev(inode->i_sb->s_bdev);
932 if (!capable(CAP_SYS_ADMIN))
934 if (inode->i_sb->s_frozen != SB_UNFROZEN)
935 thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
938 case XFS_IOC_GOINGDOWN: {
941 if (!capable(CAP_SYS_ADMIN))
944 if (get_user(in, (__uint32_t __user *)arg))
945 return -XFS_ERROR(EFAULT);
947 error = xfs_fs_goingdown(mp, in);
951 case XFS_IOC_ERROR_INJECTION: {
952 xfs_error_injection_t in;
954 if (!capable(CAP_SYS_ADMIN))
957 if (copy_from_user(&in, arg, sizeof(in)))
958 return -XFS_ERROR(EFAULT);
960 error = xfs_errortag_add(in.errtag, mp);
964 case XFS_IOC_ERROR_CLEARALL:
965 if (!capable(CAP_SYS_ADMIN))
968 error = xfs_errortag_clearall(mp);
978 struct xfs_inode *ip,
989 if (inode->i_flags & (S_IMMUTABLE|S_APPEND))
990 return -XFS_ERROR(EPERM);
992 if (!(filp->f_mode & FMODE_WRITE))
993 return -XFS_ERROR(EBADF);
995 if (!S_ISREG(inode->i_mode))
996 return -XFS_ERROR(EINVAL);
998 if (copy_from_user(&bf, arg, sizeof(bf)))
999 return -XFS_ERROR(EFAULT);
1001 if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
1002 attr_flags |= ATTR_NONBLOCK;
1003 if (ioflags & IO_INVIS)
1004 attr_flags |= ATTR_DMI;
1006 error = xfs_change_file_space(ip, cmd, &bf, filp->f_pos,
1017 xfs_fsop_bulkreq_t bulkreq;
1018 int count; /* # of records returned */
1019 xfs_ino_t inlast; /* last inode number */
1023 /* done = 1 if there are more stats to get and if bulkstat */
1024 /* should be called again (unused here, but used in dmapi) */
1026 if (!capable(CAP_SYS_ADMIN))
1029 if (XFS_FORCED_SHUTDOWN(mp))
1030 return -XFS_ERROR(EIO);
1032 if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t)))
1033 return -XFS_ERROR(EFAULT);
1035 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
1036 return -XFS_ERROR(EFAULT);
1038 if ((count = bulkreq.icount) <= 0)
1039 return -XFS_ERROR(EINVAL);
1041 if (cmd == XFS_IOC_FSINUMBERS)
1042 error = xfs_inumbers(mp, &inlast, &count,
1043 bulkreq.ubuffer, xfs_inumbers_fmt);
1044 else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE)
1045 error = xfs_bulkstat_single(mp, &inlast,
1046 bulkreq.ubuffer, &done);
1047 else { /* XFS_IOC_FSBULKSTAT */
1048 if (count == 1 && inlast != 0) {
1050 error = xfs_bulkstat_single(mp, &inlast,
1051 bulkreq.ubuffer, &done);
1053 error = xfs_bulkstat(mp, &inlast, &count,
1054 (bulkstat_one_pf)xfs_bulkstat_one, NULL,
1055 sizeof(xfs_bstat_t), bulkreq.ubuffer,
1056 BULKSTAT_FG_QUICK, &done);
1063 if (bulkreq.ocount != NULL) {
1064 if (copy_to_user(bulkreq.lastip, &inlast,
1066 return -XFS_ERROR(EFAULT);
1068 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
1069 return -XFS_ERROR(EFAULT);
1076 xfs_ioc_fsgeometry_v1(
1080 xfs_fsop_geom_v1_t fsgeo;
1083 error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)&fsgeo, 3);
1087 if (copy_to_user(arg, &fsgeo, sizeof(fsgeo)))
1088 return -XFS_ERROR(EFAULT);
1097 xfs_fsop_geom_t fsgeo;
1100 error = xfs_fs_geometry(mp, &fsgeo, 4);
1104 if (copy_to_user(arg, &fsgeo, sizeof(fsgeo)))
1105 return -XFS_ERROR(EFAULT);
1110 * Linux extended inode flags interface.
1114 xfs_merge_ioc_xflags(
1118 unsigned int xflags = start;
1120 if (flags & FS_IMMUTABLE_FL)
1121 xflags |= XFS_XFLAG_IMMUTABLE;
1123 xflags &= ~XFS_XFLAG_IMMUTABLE;
1124 if (flags & FS_APPEND_FL)
1125 xflags |= XFS_XFLAG_APPEND;
1127 xflags &= ~XFS_XFLAG_APPEND;
1128 if (flags & FS_SYNC_FL)
1129 xflags |= XFS_XFLAG_SYNC;
1131 xflags &= ~XFS_XFLAG_SYNC;
1132 if (flags & FS_NOATIME_FL)
1133 xflags |= XFS_XFLAG_NOATIME;
1135 xflags &= ~XFS_XFLAG_NOATIME;
1136 if (flags & FS_NODUMP_FL)
1137 xflags |= XFS_XFLAG_NODUMP;
1139 xflags &= ~XFS_XFLAG_NODUMP;
1146 __uint16_t di_flags)
1148 unsigned int flags = 0;
1150 if (di_flags & XFS_DIFLAG_IMMUTABLE)
1151 flags |= FS_IMMUTABLE_FL;
1152 if (di_flags & XFS_DIFLAG_APPEND)
1153 flags |= FS_APPEND_FL;
1154 if (di_flags & XFS_DIFLAG_SYNC)
1155 flags |= FS_SYNC_FL;
1156 if (di_flags & XFS_DIFLAG_NOATIME)
1157 flags |= FS_NOATIME_FL;
1158 if (di_flags & XFS_DIFLAG_NODUMP)
1159 flags |= FS_NODUMP_FL;
1172 struct bhv_vattr *vattr;
1177 vattr = kmalloc(sizeof(*vattr), GFP_KERNEL);
1178 if (unlikely(!vattr))
1182 case XFS_IOC_FSGETXATTR: {
1183 vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
1184 XFS_AT_NEXTENTS | XFS_AT_PROJID;
1185 error = bhv_vop_getattr(vp, vattr, 0, NULL);
1186 if (unlikely(error)) {
1191 fa.fsx_xflags = vattr->va_xflags;
1192 fa.fsx_extsize = vattr->va_extsize;
1193 fa.fsx_nextents = vattr->va_nextents;
1194 fa.fsx_projid = vattr->va_projid;
1196 if (copy_to_user(arg, &fa, sizeof(fa))) {
1203 case XFS_IOC_FSSETXATTR: {
1204 if (copy_from_user(&fa, arg, sizeof(fa))) {
1210 if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
1211 attr_flags |= ATTR_NONBLOCK;
1213 vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
1214 vattr->va_xflags = fa.fsx_xflags;
1215 vattr->va_extsize = fa.fsx_extsize;
1216 vattr->va_projid = fa.fsx_projid;
1218 error = bhv_vop_setattr(vp, vattr, attr_flags, NULL);
1220 __vn_revalidate(vp, vattr); /* update flags */
1225 case XFS_IOC_FSGETXATTRA: {
1226 vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
1227 XFS_AT_ANEXTENTS | XFS_AT_PROJID;
1228 error = bhv_vop_getattr(vp, vattr, 0, NULL);
1229 if (unlikely(error)) {
1234 fa.fsx_xflags = vattr->va_xflags;
1235 fa.fsx_extsize = vattr->va_extsize;
1236 fa.fsx_nextents = vattr->va_anextents;
1237 fa.fsx_projid = vattr->va_projid;
1239 if (copy_to_user(arg, &fa, sizeof(fa))) {
1246 case XFS_IOC_GETXFLAGS: {
1247 flags = xfs_di2lxflags(ip->i_d.di_flags);
1248 if (copy_to_user(arg, &flags, sizeof(flags)))
1253 case XFS_IOC_SETXFLAGS: {
1254 if (copy_from_user(&flags, arg, sizeof(flags))) {
1259 if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
1260 FS_NOATIME_FL | FS_NODUMP_FL | \
1262 error = -EOPNOTSUPP;
1267 if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
1268 attr_flags |= ATTR_NONBLOCK;
1270 vattr->va_mask = XFS_AT_XFLAGS;
1271 vattr->va_xflags = xfs_merge_ioc_xflags(flags,
1274 error = bhv_vop_setattr(vp, vattr, attr_flags, NULL);
1276 __vn_revalidate(vp, vattr); /* update flags */
1292 struct xfs_inode *ip,
1301 if (copy_from_user(&bm, arg, sizeof(bm)))
1302 return -XFS_ERROR(EFAULT);
1304 if (bm.bmv_count < 2)
1305 return -XFS_ERROR(EINVAL);
1307 iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
1308 if (ioflags & IO_INVIS)
1309 iflags |= BMV_IF_NO_DMAPI_READ;
1311 error = xfs_getbmap(ip, &bm, (struct getbmap __user *)arg+1, iflags);
1315 if (copy_to_user(arg, &bm, sizeof(bm)))
1316 return -XFS_ERROR(EFAULT);
1322 struct xfs_inode *ip,
1325 struct getbmapx bmx;
1330 if (copy_from_user(&bmx, arg, sizeof(bmx)))
1331 return -XFS_ERROR(EFAULT);
1333 if (bmx.bmv_count < 2)
1334 return -XFS_ERROR(EINVAL);
1337 * Map input getbmapx structure to a getbmap
1338 * structure for xfs_getbmap.
1340 GETBMAP_CONVERT(bmx, bm);
1342 iflags = bmx.bmv_iflags;
1344 if (iflags & (~BMV_IF_VALID))
1345 return -XFS_ERROR(EINVAL);
1347 iflags |= BMV_IF_EXTENDED;
1349 error = xfs_getbmap(ip, &bm, (struct getbmapx __user *)arg+1, iflags);
1353 GETBMAP_CONVERT(bm, bmx);
1355 if (copy_to_user(arg, &bmx, sizeof(bmx)))
1356 return -XFS_ERROR(EFAULT);