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"
28 #include "xfs_alloc.h"
29 #include "xfs_dmapi.h"
30 #include "xfs_mount.h"
31 #include "xfs_bmap_btree.h"
32 #include "xfs_alloc_btree.h"
33 #include "xfs_ialloc_btree.h"
34 #include "xfs_dir_sf.h"
35 #include "xfs_attr_sf.h"
36 #include "xfs_dir2_sf.h"
37 #include "xfs_dinode.h"
38 #include "xfs_inode.h"
39 #include "xfs_btree.h"
40 #include "xfs_ialloc.h"
41 #include "xfs_rtalloc.h"
42 #include "xfs_itable.h"
43 #include "xfs_error.h"
50 #include "xfs_buf_item.h"
51 #include "xfs_utils.h"
52 #include "xfs_dfrag.h"
53 #include "xfs_fsops.h"
55 #include <linux/capability.h>
56 #include <linux/dcache.h>
57 #include <linux/mount.h>
58 #include <linux/namei.h>
59 #include <linux/pagemap.h>
62 * xfs_find_handle maps from userspace xfs_fsop_handlereq structure to
63 * a file or fs handle.
65 * XFS_IOC_PATH_TO_FSHANDLE
66 * returns fs handle for a mount point or path within that mount point
67 * XFS_IOC_FD_TO_HANDLE
68 * returns full handle for a FD opened in user space
69 * XFS_IOC_PATH_TO_HANDLE
70 * returns full handle for a path
79 xfs_fsop_handlereq_t hreq;
83 if (copy_from_user(&hreq, arg, sizeof(hreq)))
84 return -XFS_ERROR(EFAULT);
86 memset((char *)&handle, 0, sizeof(handle));
89 case XFS_IOC_PATH_TO_FSHANDLE:
90 case XFS_IOC_PATH_TO_HANDLE: {
94 error = user_path_walk_link((const char __user *)hreq.path, &nd);
99 ASSERT(nd.dentry->d_inode);
100 inode = igrab(nd.dentry->d_inode);
105 case XFS_IOC_FD_TO_HANDLE: {
108 file = fget(hreq.fd);
112 ASSERT(file->f_dentry);
113 ASSERT(file->f_dentry->d_inode);
114 inode = igrab(file->f_dentry->d_inode);
121 return -XFS_ERROR(EINVAL);
124 if (inode->i_sb->s_magic != XFS_SB_MAGIC) {
125 /* we're not in XFS anymore, Toto */
127 return -XFS_ERROR(EINVAL);
130 switch (inode->i_mode & S_IFMT) {
137 return -XFS_ERROR(EBADF);
140 /* we need the vnode */
141 vp = vn_from_inode(inode);
143 /* now we can grab the fsid */
144 memcpy(&handle.ha_fsid, vp->v_vfsp->vfs_altfsid, sizeof(xfs_fsid_t));
145 hsize = sizeof(xfs_fsid_t);
147 if (cmd != XFS_IOC_PATH_TO_FSHANDLE) {
151 /* need to get access to the xfs_inode to read the generation */
154 lock_mode = xfs_ilock_map_shared(ip);
156 /* fill in fid section of handle from inode */
157 handle.ha_fid.xfs_fid_len = sizeof(xfs_fid_t) -
158 sizeof(handle.ha_fid.xfs_fid_len);
159 handle.ha_fid.xfs_fid_pad = 0;
160 handle.ha_fid.xfs_fid_gen = ip->i_d.di_gen;
161 handle.ha_fid.xfs_fid_ino = ip->i_ino;
163 xfs_iunlock_map_shared(ip, lock_mode);
165 hsize = XFS_HSIZE(handle);
168 /* now copy our handle into the user buffer & write out the size */
169 if (copy_to_user(hreq.ohandle, &handle, hsize) ||
170 copy_to_user(hreq.ohandlen, &hsize, sizeof(__s32))) {
172 return -XFS_ERROR(EFAULT);
181 * Convert userspace handle data into vnode (and inode).
182 * We [ab]use the fact that all the fsop_handlereq ioctl calls
183 * have a data structure argument whose first component is always
184 * a xfs_fsop_handlereq_t, so we can cast to and from this type.
185 * This allows us to optimise the copy_from_user calls and gives
186 * a handy, shared routine.
188 * If no error, caller must always VN_RELE the returned vp.
191 xfs_vget_fsop_handlereq(
193 struct inode *parinode, /* parent inode pointer */
194 xfs_fsop_handlereq_t *hreq,
196 struct inode **inode)
201 xfs_handle_t *handlep;
204 struct inode *inodep;
211 * Only allow handle opens under a directory.
213 if (!S_ISDIR(parinode->i_mode))
214 return XFS_ERROR(ENOTDIR);
216 hanp = hreq->ihandle;
217 hlen = hreq->ihandlen;
220 if (hlen < sizeof(handlep->ha_fsid) || hlen > sizeof(*handlep))
221 return XFS_ERROR(EINVAL);
222 if (copy_from_user(handlep, hanp, hlen))
223 return XFS_ERROR(EFAULT);
224 if (hlen < sizeof(*handlep))
225 memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen);
226 if (hlen > sizeof(handlep->ha_fsid)) {
227 if (handlep->ha_fid.xfs_fid_len !=
228 (hlen - sizeof(handlep->ha_fsid)
229 - sizeof(handlep->ha_fid.xfs_fid_len))
230 || handlep->ha_fid.xfs_fid_pad)
231 return XFS_ERROR(EINVAL);
235 * Crack the handle, obtain the inode # & generation #
237 xfid = (struct xfs_fid *)&handlep->ha_fid;
238 if (xfid->xfs_fid_len == sizeof(*xfid) - sizeof(xfid->xfs_fid_len)) {
239 ino = xfid->xfs_fid_ino;
240 igen = xfid->xfs_fid_gen;
242 return XFS_ERROR(EINVAL);
246 * Get the XFS inode, building a vnode to go with it.
248 error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
252 return XFS_ERROR(EIO);
253 if (ip->i_d.di_mode == 0 || ip->i_d.di_gen != igen) {
254 xfs_iput_new(ip, XFS_ILOCK_SHARED);
255 return XFS_ERROR(ENOENT);
259 inodep = vn_to_inode(vpp);
260 xfs_iunlock(ip, XFS_ILOCK_SHARED);
271 struct file *parfilp,
272 struct inode *parinode)
279 struct dentry *dentry;
281 xfs_fsop_handlereq_t hreq;
283 if (!capable(CAP_SYS_ADMIN))
284 return -XFS_ERROR(EPERM);
285 if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t)))
286 return -XFS_ERROR(EFAULT);
288 error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &vp, &inode);
292 /* Restrict xfs_open_by_handle to directories & regular files. */
293 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) {
295 return -XFS_ERROR(EINVAL);
298 #if BITS_PER_LONG != 32
299 hreq.oflags |= O_LARGEFILE;
301 /* Put open permission in namei format. */
302 permflag = hreq.oflags;
303 if ((permflag+1) & O_ACCMODE)
305 if (permflag & O_TRUNC)
308 if ((!(permflag & O_APPEND) || (permflag & O_TRUNC)) &&
309 (permflag & FMODE_WRITE) && IS_APPEND(inode)) {
311 return -XFS_ERROR(EPERM);
314 if ((permflag & FMODE_WRITE) && IS_IMMUTABLE(inode)) {
316 return -XFS_ERROR(EACCES);
319 /* Can't write directories. */
320 if ( S_ISDIR(inode->i_mode) && (permflag & FMODE_WRITE)) {
322 return -XFS_ERROR(EISDIR);
325 if ((new_fd = get_unused_fd()) < 0) {
330 dentry = d_alloc_anon(inode);
331 if (dentry == NULL) {
333 put_unused_fd(new_fd);
334 return -XFS_ERROR(ENOMEM);
337 /* Ensure umount returns EBUSY on umounts while this file is open. */
338 mntget(parfilp->f_vfsmnt);
340 /* Create file pointer. */
341 filp = dentry_open(dentry, parfilp->f_vfsmnt, hreq.oflags);
343 put_unused_fd(new_fd);
344 return -XFS_ERROR(-PTR_ERR(filp));
346 if (inode->i_mode & S_IFREG)
347 filp->f_op = &xfs_invis_file_operations;
349 fd_install(new_fd, filp);
354 xfs_readlink_by_handle(
357 struct file *parfilp,
358 struct inode *parinode)
364 xfs_fsop_handlereq_t hreq;
368 if (!capable(CAP_SYS_ADMIN))
369 return -XFS_ERROR(EPERM);
370 if (copy_from_user(&hreq, arg, sizeof(xfs_fsop_handlereq_t)))
371 return -XFS_ERROR(EFAULT);
373 error = xfs_vget_fsop_handlereq(mp, parinode, &hreq, &vp, &inode);
377 /* Restrict this handle operation to symlinks only. */
378 if (!S_ISLNK(inode->i_mode)) {
380 return -XFS_ERROR(EINVAL);
383 if (copy_from_user(&olen, hreq.ohandlen, sizeof(__u32))) {
385 return -XFS_ERROR(EFAULT);
388 aiov.iov_base = hreq.ohandle;
390 auio.uio_iov = &aiov;
393 auio.uio_segflg = UIO_USERSPACE;
394 auio.uio_resid = olen;
396 error = bhv_vop_readlink(vp, &auio, IO_INVIS, NULL);
401 return (olen - auio.uio_resid);
405 xfs_fssetdm_by_handle(
408 struct file *parfilp,
409 struct inode *parinode)
412 struct fsdmidata fsd;
413 xfs_fsop_setdm_handlereq_t dmhreq;
418 if (!capable(CAP_MKNOD))
419 return -XFS_ERROR(EPERM);
420 if (copy_from_user(&dmhreq, arg, sizeof(xfs_fsop_setdm_handlereq_t)))
421 return -XFS_ERROR(EFAULT);
423 error = xfs_vget_fsop_handlereq(mp, parinode, &dmhreq.hreq, &vp, &inode);
427 if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
429 return -XFS_ERROR(EPERM);
432 if (copy_from_user(&fsd, dmhreq.data, sizeof(fsd))) {
434 return -XFS_ERROR(EFAULT);
437 bdp = bhv_base_unlocked(VN_BHV_HEAD(vp));
438 error = xfs_set_dmattrs(bdp, fsd.fsd_dmevmask, fsd.fsd_dmstate, NULL);
447 xfs_attrlist_by_handle(
450 struct file *parfilp,
451 struct inode *parinode)
454 attrlist_cursor_kern_t *cursor;
455 xfs_fsop_attrlist_handlereq_t al_hreq;
460 if (!capable(CAP_SYS_ADMIN))
461 return -XFS_ERROR(EPERM);
462 if (copy_from_user(&al_hreq, arg, sizeof(xfs_fsop_attrlist_handlereq_t)))
463 return -XFS_ERROR(EFAULT);
464 if (al_hreq.buflen > XATTR_LIST_MAX)
465 return -XFS_ERROR(EINVAL);
467 error = xfs_vget_fsop_handlereq(mp, parinode, &al_hreq.hreq,
472 kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
476 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
477 error = bhv_vop_attr_list(vp, kbuf, al_hreq.buflen, al_hreq.flags,
482 if (copy_to_user(al_hreq.buffer, kbuf, al_hreq.buflen))
494 xfs_attrmulti_attr_get(
504 if (*len > XATTR_SIZE_MAX)
506 kbuf = kmalloc(*len, GFP_KERNEL);
510 error = bhv_vop_attr_get(vp, name, kbuf, len, flags, NULL);
514 if (copy_to_user(ubuf, kbuf, *len))
523 xfs_attrmulti_attr_set(
526 const char __user *ubuf,
533 if (IS_RDONLY(&vp->v_inode))
535 if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode))
537 if (len > XATTR_SIZE_MAX)
540 kbuf = kmalloc(len, GFP_KERNEL);
544 if (copy_from_user(kbuf, ubuf, len))
547 error = bhv_vop_attr_set(vp, name, kbuf, len, flags, NULL);
555 xfs_attrmulti_attr_remove(
560 if (IS_RDONLY(&vp->v_inode))
562 if (IS_IMMUTABLE(&vp->v_inode) || IS_APPEND(&vp->v_inode))
564 return bhv_vop_attr_remove(vp, name, flags, NULL);
568 xfs_attrmulti_by_handle(
571 struct file *parfilp,
572 struct inode *parinode)
575 xfs_attr_multiop_t *ops;
576 xfs_fsop_attrmulti_handlereq_t am_hreq;
579 unsigned int i, size;
582 if (!capable(CAP_SYS_ADMIN))
583 return -XFS_ERROR(EPERM);
584 if (copy_from_user(&am_hreq, arg, sizeof(xfs_fsop_attrmulti_handlereq_t)))
585 return -XFS_ERROR(EFAULT);
587 error = xfs_vget_fsop_handlereq(mp, parinode, &am_hreq.hreq, &vp, &inode);
592 size = am_hreq.opcount * sizeof(attr_multiop_t);
593 if (!size || size > 16 * PAGE_SIZE)
597 ops = kmalloc(size, GFP_KERNEL);
602 if (copy_from_user(ops, am_hreq.ops, size))
605 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
611 for (i = 0; i < am_hreq.opcount; i++) {
612 ops[i].am_error = strncpy_from_user(attr_name,
613 ops[i].am_attrname, MAXNAMELEN);
614 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
616 if (ops[i].am_error < 0)
619 switch (ops[i].am_opcode) {
621 ops[i].am_error = xfs_attrmulti_attr_get(vp,
622 attr_name, ops[i].am_attrvalue,
623 &ops[i].am_length, ops[i].am_flags);
626 ops[i].am_error = xfs_attrmulti_attr_set(vp,
627 attr_name, ops[i].am_attrvalue,
628 ops[i].am_length, ops[i].am_flags);
631 ops[i].am_error = xfs_attrmulti_attr_remove(vp,
632 attr_name, ops[i].am_flags);
635 ops[i].am_error = EINVAL;
639 if (copy_to_user(am_hreq.ops, ops, size))
640 error = XFS_ERROR(EFAULT);
651 /* prototypes for a few of the stack-hungry cases that have
652 * their own functions. Functions are defined after their use
653 * so gcc doesn't get fancy and inline them with -03 */
671 xfs_ioc_fsgeometry_v1(
715 vp = vn_from_inode(inode);
717 vn_trace_entry(vp, "xfs_ioctl", (inst_t *)__return_address);
719 ip = XFS_BHVTOI(bdp);
724 case XFS_IOC_ALLOCSP:
727 case XFS_IOC_UNRESVSP:
728 case XFS_IOC_ALLOCSP64:
729 case XFS_IOC_FREESP64:
730 case XFS_IOC_RESVSP64:
731 case XFS_IOC_UNRESVSP64:
733 * Only allow the sys admin to reserve space unless
734 * unwritten extents are enabled.
736 if (!XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) &&
737 !capable(CAP_SYS_ADMIN))
740 return xfs_ioc_space(bdp, vp, filp, ioflags, cmd, arg);
742 case XFS_IOC_DIOINFO: {
744 xfs_buftarg_t *target =
745 (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
746 mp->m_rtdev_targp : mp->m_ddev_targp;
748 da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
749 da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
751 if (copy_to_user(arg, &da, sizeof(da)))
752 return -XFS_ERROR(EFAULT);
756 case XFS_IOC_FSBULKSTAT_SINGLE:
757 case XFS_IOC_FSBULKSTAT:
758 case XFS_IOC_FSINUMBERS:
759 return xfs_ioc_bulkstat(mp, cmd, arg);
761 case XFS_IOC_FSGEOMETRY_V1:
762 return xfs_ioc_fsgeometry_v1(mp, arg);
764 case XFS_IOC_FSGEOMETRY:
765 return xfs_ioc_fsgeometry(mp, arg);
767 case XFS_IOC_GETVERSION:
768 case XFS_IOC_GETXFLAGS:
769 case XFS_IOC_SETXFLAGS:
770 case XFS_IOC_FSGETXATTR:
771 case XFS_IOC_FSSETXATTR:
772 case XFS_IOC_FSGETXATTRA:
773 return xfs_ioc_xattr(vp, ip, filp, cmd, arg);
775 case XFS_IOC_FSSETDM: {
776 struct fsdmidata dmi;
778 if (copy_from_user(&dmi, arg, sizeof(dmi)))
779 return -XFS_ERROR(EFAULT);
781 error = xfs_set_dmattrs(bdp, dmi.fsd_dmevmask, dmi.fsd_dmstate,
786 case XFS_IOC_GETBMAP:
787 case XFS_IOC_GETBMAPA:
788 return xfs_ioc_getbmap(bdp, filp, ioflags, cmd, arg);
790 case XFS_IOC_GETBMAPX:
791 return xfs_ioc_getbmapx(bdp, arg);
793 case XFS_IOC_FD_TO_HANDLE:
794 case XFS_IOC_PATH_TO_HANDLE:
795 case XFS_IOC_PATH_TO_FSHANDLE:
796 return xfs_find_handle(cmd, arg);
798 case XFS_IOC_OPEN_BY_HANDLE:
799 return xfs_open_by_handle(mp, arg, filp, inode);
801 case XFS_IOC_FSSETDM_BY_HANDLE:
802 return xfs_fssetdm_by_handle(mp, arg, filp, inode);
804 case XFS_IOC_READLINK_BY_HANDLE:
805 return xfs_readlink_by_handle(mp, arg, filp, inode);
807 case XFS_IOC_ATTRLIST_BY_HANDLE:
808 return xfs_attrlist_by_handle(mp, arg, filp, inode);
810 case XFS_IOC_ATTRMULTI_BY_HANDLE:
811 return xfs_attrmulti_by_handle(mp, arg, filp, inode);
813 case XFS_IOC_SWAPEXT: {
814 error = xfs_swapext((struct xfs_swapext __user *)arg);
818 case XFS_IOC_FSCOUNTS: {
819 xfs_fsop_counts_t out;
821 error = xfs_fs_counts(mp, &out);
825 if (copy_to_user(arg, &out, sizeof(out)))
826 return -XFS_ERROR(EFAULT);
830 case XFS_IOC_SET_RESBLKS: {
831 xfs_fsop_resblks_t inout;
834 if (!capable(CAP_SYS_ADMIN))
837 if (copy_from_user(&inout, arg, sizeof(inout)))
838 return -XFS_ERROR(EFAULT);
840 /* input parameter is passed in resblks field of structure */
842 error = xfs_reserve_blocks(mp, &in, &inout);
846 if (copy_to_user(arg, &inout, sizeof(inout)))
847 return -XFS_ERROR(EFAULT);
851 case XFS_IOC_GET_RESBLKS: {
852 xfs_fsop_resblks_t out;
854 if (!capable(CAP_SYS_ADMIN))
857 error = xfs_reserve_blocks(mp, NULL, &out);
861 if (copy_to_user(arg, &out, sizeof(out)))
862 return -XFS_ERROR(EFAULT);
867 case XFS_IOC_FSGROWFSDATA: {
868 xfs_growfs_data_t in;
870 if (!capable(CAP_SYS_ADMIN))
873 if (copy_from_user(&in, arg, sizeof(in)))
874 return -XFS_ERROR(EFAULT);
876 error = xfs_growfs_data(mp, &in);
880 case XFS_IOC_FSGROWFSLOG: {
883 if (!capable(CAP_SYS_ADMIN))
886 if (copy_from_user(&in, arg, sizeof(in)))
887 return -XFS_ERROR(EFAULT);
889 error = xfs_growfs_log(mp, &in);
893 case XFS_IOC_FSGROWFSRT: {
896 if (!capable(CAP_SYS_ADMIN))
899 if (copy_from_user(&in, arg, sizeof(in)))
900 return -XFS_ERROR(EFAULT);
902 error = xfs_growfs_rt(mp, &in);
907 if (!capable(CAP_SYS_ADMIN))
910 if (inode->i_sb->s_frozen == SB_UNFROZEN)
911 freeze_bdev(inode->i_sb->s_bdev);
915 if (!capable(CAP_SYS_ADMIN))
917 if (inode->i_sb->s_frozen != SB_UNFROZEN)
918 thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
921 case XFS_IOC_GOINGDOWN: {
924 if (!capable(CAP_SYS_ADMIN))
927 if (get_user(in, (__uint32_t __user *)arg))
928 return -XFS_ERROR(EFAULT);
930 error = xfs_fs_goingdown(mp, in);
934 case XFS_IOC_ERROR_INJECTION: {
935 xfs_error_injection_t in;
937 if (!capable(CAP_SYS_ADMIN))
940 if (copy_from_user(&in, arg, sizeof(in)))
941 return -XFS_ERROR(EFAULT);
943 error = xfs_errortag_add(in.errtag, mp);
947 case XFS_IOC_ERROR_CLEARALL:
948 if (!capable(CAP_SYS_ADMIN))
951 error = xfs_errortag_clearall(mp);
972 if (vp->v_inode.i_flags & (S_IMMUTABLE|S_APPEND))
973 return -XFS_ERROR(EPERM);
975 if (!(filp->f_mode & FMODE_WRITE))
976 return -XFS_ERROR(EBADF);
979 return -XFS_ERROR(EINVAL);
981 if (copy_from_user(&bf, arg, sizeof(bf)))
982 return -XFS_ERROR(EFAULT);
984 if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
985 attr_flags |= ATTR_NONBLOCK;
986 if (ioflags & IO_INVIS)
987 attr_flags |= ATTR_DMI;
989 error = xfs_change_file_space(bdp, cmd, &bf, filp->f_pos,
1000 xfs_fsop_bulkreq_t bulkreq;
1001 int count; /* # of records returned */
1002 xfs_ino_t inlast; /* last inode number */
1006 /* done = 1 if there are more stats to get and if bulkstat */
1007 /* should be called again (unused here, but used in dmapi) */
1009 if (!capable(CAP_SYS_ADMIN))
1012 if (XFS_FORCED_SHUTDOWN(mp))
1013 return -XFS_ERROR(EIO);
1015 if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t)))
1016 return -XFS_ERROR(EFAULT);
1018 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
1019 return -XFS_ERROR(EFAULT);
1021 if ((count = bulkreq.icount) <= 0)
1022 return -XFS_ERROR(EINVAL);
1024 if (cmd == XFS_IOC_FSINUMBERS)
1025 error = xfs_inumbers(mp, &inlast, &count,
1027 else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE)
1028 error = xfs_bulkstat_single(mp, &inlast,
1029 bulkreq.ubuffer, &done);
1030 else { /* XFS_IOC_FSBULKSTAT */
1031 if (count == 1 && inlast != 0) {
1033 error = xfs_bulkstat_single(mp, &inlast,
1034 bulkreq.ubuffer, &done);
1036 error = xfs_bulkstat(mp, &inlast, &count,
1037 (bulkstat_one_pf)xfs_bulkstat_one, NULL,
1038 sizeof(xfs_bstat_t), bulkreq.ubuffer,
1039 BULKSTAT_FG_QUICK, &done);
1046 if (bulkreq.ocount != NULL) {
1047 if (copy_to_user(bulkreq.lastip, &inlast,
1049 return -XFS_ERROR(EFAULT);
1051 if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
1052 return -XFS_ERROR(EFAULT);
1059 xfs_ioc_fsgeometry_v1(
1063 xfs_fsop_geom_v1_t fsgeo;
1066 error = xfs_fs_geometry(mp, (xfs_fsop_geom_t *)&fsgeo, 3);
1070 if (copy_to_user(arg, &fsgeo, sizeof(fsgeo)))
1071 return -XFS_ERROR(EFAULT);
1080 xfs_fsop_geom_t fsgeo;
1083 error = xfs_fs_geometry(mp, &fsgeo, 4);
1087 if (copy_to_user(arg, &fsgeo, sizeof(fsgeo)))
1088 return -XFS_ERROR(EFAULT);
1093 * Linux extended inode flags interface.
1095 #define LINUX_XFLAG_SYNC 0x00000008 /* Synchronous updates */
1096 #define LINUX_XFLAG_IMMUTABLE 0x00000010 /* Immutable file */
1097 #define LINUX_XFLAG_APPEND 0x00000020 /* writes to file may only append */
1098 #define LINUX_XFLAG_NODUMP 0x00000040 /* do not dump file */
1099 #define LINUX_XFLAG_NOATIME 0x00000080 /* do not update atime */
1102 xfs_merge_ioc_xflags(
1106 unsigned int xflags = start;
1108 if (flags & LINUX_XFLAG_IMMUTABLE)
1109 xflags |= XFS_XFLAG_IMMUTABLE;
1111 xflags &= ~XFS_XFLAG_IMMUTABLE;
1112 if (flags & LINUX_XFLAG_APPEND)
1113 xflags |= XFS_XFLAG_APPEND;
1115 xflags &= ~XFS_XFLAG_APPEND;
1116 if (flags & LINUX_XFLAG_SYNC)
1117 xflags |= XFS_XFLAG_SYNC;
1119 xflags &= ~XFS_XFLAG_SYNC;
1120 if (flags & LINUX_XFLAG_NOATIME)
1121 xflags |= XFS_XFLAG_NOATIME;
1123 xflags &= ~XFS_XFLAG_NOATIME;
1124 if (flags & LINUX_XFLAG_NODUMP)
1125 xflags |= XFS_XFLAG_NODUMP;
1127 xflags &= ~XFS_XFLAG_NODUMP;
1134 __uint16_t di_flags)
1136 unsigned int flags = 0;
1138 if (di_flags & XFS_DIFLAG_IMMUTABLE)
1139 flags |= LINUX_XFLAG_IMMUTABLE;
1140 if (di_flags & XFS_DIFLAG_APPEND)
1141 flags |= LINUX_XFLAG_APPEND;
1142 if (di_flags & XFS_DIFLAG_SYNC)
1143 flags |= LINUX_XFLAG_SYNC;
1144 if (di_flags & XFS_DIFLAG_NOATIME)
1145 flags |= LINUX_XFLAG_NOATIME;
1146 if (di_flags & XFS_DIFLAG_NODUMP)
1147 flags |= LINUX_XFLAG_NODUMP;
1160 struct bhv_vattr *vattr;
1165 vattr = kmalloc(sizeof(*vattr), GFP_KERNEL);
1166 if (unlikely(!vattr))
1170 case XFS_IOC_FSGETXATTR: {
1171 vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
1172 XFS_AT_NEXTENTS | XFS_AT_PROJID;
1173 error = bhv_vop_getattr(vp, vattr, 0, NULL);
1174 if (unlikely(error)) {
1179 fa.fsx_xflags = vattr->va_xflags;
1180 fa.fsx_extsize = vattr->va_extsize;
1181 fa.fsx_nextents = vattr->va_nextents;
1182 fa.fsx_projid = vattr->va_projid;
1184 if (copy_to_user(arg, &fa, sizeof(fa))) {
1191 case XFS_IOC_FSSETXATTR: {
1192 if (copy_from_user(&fa, arg, sizeof(fa))) {
1198 if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
1199 attr_flags |= ATTR_NONBLOCK;
1201 vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
1202 vattr->va_xflags = fa.fsx_xflags;
1203 vattr->va_extsize = fa.fsx_extsize;
1204 vattr->va_projid = fa.fsx_projid;
1206 error = bhv_vop_setattr(vp, vattr, attr_flags, NULL);
1208 __vn_revalidate(vp, vattr); /* update flags */
1213 case XFS_IOC_FSGETXATTRA: {
1214 vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | \
1215 XFS_AT_ANEXTENTS | XFS_AT_PROJID;
1216 error = bhv_vop_getattr(vp, vattr, 0, NULL);
1217 if (unlikely(error)) {
1222 fa.fsx_xflags = vattr->va_xflags;
1223 fa.fsx_extsize = vattr->va_extsize;
1224 fa.fsx_nextents = vattr->va_anextents;
1225 fa.fsx_projid = vattr->va_projid;
1227 if (copy_to_user(arg, &fa, sizeof(fa))) {
1234 case XFS_IOC_GETXFLAGS: {
1235 flags = xfs_di2lxflags(ip->i_d.di_flags);
1236 if (copy_to_user(arg, &flags, sizeof(flags)))
1241 case XFS_IOC_SETXFLAGS: {
1242 if (copy_from_user(&flags, arg, sizeof(flags))) {
1247 if (flags & ~(LINUX_XFLAG_IMMUTABLE | LINUX_XFLAG_APPEND | \
1248 LINUX_XFLAG_NOATIME | LINUX_XFLAG_NODUMP | \
1249 LINUX_XFLAG_SYNC)) {
1250 error = -EOPNOTSUPP;
1255 if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
1256 attr_flags |= ATTR_NONBLOCK;
1258 vattr->va_mask = XFS_AT_XFLAGS;
1259 vattr->va_xflags = xfs_merge_ioc_xflags(flags,
1262 error = bhv_vop_setattr(vp, vattr, attr_flags, NULL);
1264 __vn_revalidate(vp, vattr); /* update flags */
1269 case XFS_IOC_GETVERSION: {
1270 flags = vn_to_inode(vp)->i_generation;
1271 if (copy_to_user(arg, &flags, sizeof(flags)))
1297 if (copy_from_user(&bm, arg, sizeof(bm)))
1298 return -XFS_ERROR(EFAULT);
1300 if (bm.bmv_count < 2)
1301 return -XFS_ERROR(EINVAL);
1303 iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
1304 if (ioflags & IO_INVIS)
1305 iflags |= BMV_IF_NO_DMAPI_READ;
1307 error = xfs_getbmap(bdp, &bm, (struct getbmap __user *)arg+1, iflags);
1311 if (copy_to_user(arg, &bm, sizeof(bm)))
1312 return -XFS_ERROR(EFAULT);
1321 struct getbmapx bmx;
1326 if (copy_from_user(&bmx, arg, sizeof(bmx)))
1327 return -XFS_ERROR(EFAULT);
1329 if (bmx.bmv_count < 2)
1330 return -XFS_ERROR(EINVAL);
1333 * Map input getbmapx structure to a getbmap
1334 * structure for xfs_getbmap.
1336 GETBMAP_CONVERT(bmx, bm);
1338 iflags = bmx.bmv_iflags;
1340 if (iflags & (~BMV_IF_VALID))
1341 return -XFS_ERROR(EINVAL);
1343 iflags |= BMV_IF_EXTENDED;
1345 error = xfs_getbmap(bdp, &bm, (struct getbmapx __user *)arg+1, iflags);
1349 GETBMAP_CONVERT(bm, bmx);
1351 if (copy_to_user(arg, &bmx, sizeof(bmx)))
1352 return -XFS_ERROR(EFAULT);