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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl32.c849
1 files changed, 553 insertions, 296 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index a4b254eb43b2..0504cece9f66 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -16,11 +16,7 @@
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */ 17 */
18#include <linux/compat.h> 18#include <linux/compat.h>
19#include <linux/init.h>
20#include <linux/ioctl.h> 19#include <linux/ioctl.h>
21#include <linux/syscalls.h>
22#include <linux/types.h>
23#include <linux/fs.h>
24#include <asm/uaccess.h> 20#include <asm/uaccess.h>
25#include "xfs.h" 21#include "xfs.h"
26#include "xfs_fs.h" 22#include "xfs_fs.h"
@@ -36,7 +32,6 @@
36#include "xfs_bmap_btree.h" 32#include "xfs_bmap_btree.h"
37#include "xfs_attr_sf.h" 33#include "xfs_attr_sf.h"
38#include "xfs_dir2_sf.h" 34#include "xfs_dir2_sf.h"
39#include "xfs_vfs.h"
40#include "xfs_vnode.h" 35#include "xfs_vnode.h"
41#include "xfs_dinode.h" 36#include "xfs_dinode.h"
42#include "xfs_inode.h" 37#include "xfs_inode.h"
@@ -44,221 +39,219 @@
44#include "xfs_error.h" 39#include "xfs_error.h"
45#include "xfs_dfrag.h" 40#include "xfs_dfrag.h"
46#include "xfs_vnodeops.h" 41#include "xfs_vnodeops.h"
42#include "xfs_fsops.h"
43#include "xfs_alloc.h"
44#include "xfs_rtalloc.h"
45#include "xfs_attr.h"
46#include "xfs_ioctl.h"
47#include "xfs_ioctl32.h" 47#include "xfs_ioctl32.h"
48 48
49#define _NATIVE_IOC(cmd, type) \ 49#define _NATIVE_IOC(cmd, type) \
50 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) 50 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
51 51
52#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) 52#ifdef BROKEN_X86_ALIGNMENT
53#define BROKEN_X86_ALIGNMENT 53STATIC int
54#define _PACKED __attribute__((packed)) 54xfs_compat_flock64_copyin(
55/* on ia32 l_start is on a 32-bit boundary */ 55 xfs_flock64_t *bf,
56typedef struct xfs_flock64_32 { 56 compat_xfs_flock64_t __user *arg32)
57 __s16 l_type;
58 __s16 l_whence;
59 __s64 l_start __attribute__((packed));
60 /* len == 0 means until end of file */
61 __s64 l_len __attribute__((packed));
62 __s32 l_sysid;
63 __u32 l_pid;
64 __s32 l_pad[4]; /* reserve area */
65} xfs_flock64_32_t;
66
67#define XFS_IOC_ALLOCSP_32 _IOW ('X', 10, struct xfs_flock64_32)
68#define XFS_IOC_FREESP_32 _IOW ('X', 11, struct xfs_flock64_32)
69#define XFS_IOC_ALLOCSP64_32 _IOW ('X', 36, struct xfs_flock64_32)
70#define XFS_IOC_FREESP64_32 _IOW ('X', 37, struct xfs_flock64_32)
71#define XFS_IOC_RESVSP_32 _IOW ('X', 40, struct xfs_flock64_32)
72#define XFS_IOC_UNRESVSP_32 _IOW ('X', 41, struct xfs_flock64_32)
73#define XFS_IOC_RESVSP64_32 _IOW ('X', 42, struct xfs_flock64_32)
74#define XFS_IOC_UNRESVSP64_32 _IOW ('X', 43, struct xfs_flock64_32)
75
76/* just account for different alignment */
77STATIC unsigned long
78xfs_ioctl32_flock(
79 unsigned long arg)
80{ 57{
81 xfs_flock64_32_t __user *p32 = (void __user *)arg; 58 if (get_user(bf->l_type, &arg32->l_type) ||
82 xfs_flock64_t __user *p = compat_alloc_user_space(sizeof(*p)); 59 get_user(bf->l_whence, &arg32->l_whence) ||
83 60 get_user(bf->l_start, &arg32->l_start) ||
84 if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) || 61 get_user(bf->l_len, &arg32->l_len) ||
85 copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) || 62 get_user(bf->l_sysid, &arg32->l_sysid) ||
86 copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) || 63 get_user(bf->l_pid, &arg32->l_pid) ||
87 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) || 64 copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32)))
88 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) || 65 return -XFS_ERROR(EFAULT);
89 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) || 66 return 0;
90 copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
91 return -EFAULT;
92
93 return (unsigned long)p;
94} 67}
95 68
96typedef struct compat_xfs_fsop_geom_v1 { 69STATIC int
97 __u32 blocksize; /* filesystem (data) block size */ 70xfs_compat_ioc_fsgeometry_v1(
98 __u32 rtextsize; /* realtime extent size */ 71 struct xfs_mount *mp,
99 __u32 agblocks; /* fsblocks in an AG */ 72 compat_xfs_fsop_geom_v1_t __user *arg32)
100 __u32 agcount; /* number of allocation groups */
101 __u32 logblocks; /* fsblocks in the log */
102 __u32 sectsize; /* (data) sector size, bytes */
103 __u32 inodesize; /* inode size in bytes */
104 __u32 imaxpct; /* max allowed inode space(%) */
105 __u64 datablocks; /* fsblocks in data subvolume */
106 __u64 rtblocks; /* fsblocks in realtime subvol */
107 __u64 rtextents; /* rt extents in realtime subvol*/
108 __u64 logstart; /* starting fsblock of the log */
109 unsigned char uuid[16]; /* unique id of the filesystem */
110 __u32 sunit; /* stripe unit, fsblocks */
111 __u32 swidth; /* stripe width, fsblocks */
112 __s32 version; /* structure version */
113 __u32 flags; /* superblock version flags */
114 __u32 logsectsize; /* log sector size, bytes */
115 __u32 rtsectsize; /* realtime sector size, bytes */
116 __u32 dirblocksize; /* directory block size, bytes */
117} __attribute__((packed)) compat_xfs_fsop_geom_v1_t;
118
119#define XFS_IOC_FSGEOMETRY_V1_32 \
120 _IOR ('X', 100, struct compat_xfs_fsop_geom_v1)
121
122STATIC unsigned long xfs_ioctl32_geom_v1(unsigned long arg)
123{ 73{
124 compat_xfs_fsop_geom_v1_t __user *p32 = (void __user *)arg; 74 xfs_fsop_geom_t fsgeo;
125 xfs_fsop_geom_v1_t __user *p = compat_alloc_user_space(sizeof(*p)); 75 int error;
126 76
127 if (copy_in_user(p, p32, sizeof(*p32))) 77 error = xfs_fs_geometry(mp, &fsgeo, 3);
128 return -EFAULT; 78 if (error)
129 return (unsigned long)p; 79 return -error;
80 /* The 32-bit variant simply has some padding at the end */
81 if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1)))
82 return -XFS_ERROR(EFAULT);
83 return 0;
130} 84}
131 85
132typedef struct compat_xfs_inogrp { 86STATIC int
133 __u64 xi_startino; /* starting inode number */ 87xfs_compat_growfs_data_copyin(
134 __s32 xi_alloccount; /* # bits set in allocmask */ 88 struct xfs_growfs_data *in,
135 __u64 xi_allocmask; /* mask of allocated inodes */ 89 compat_xfs_growfs_data_t __user *arg32)
136} __attribute__((packed)) compat_xfs_inogrp_t;
137
138STATIC int xfs_inumbers_fmt_compat(
139 void __user *ubuffer,
140 const xfs_inogrp_t *buffer,
141 long count,
142 long *written)
143{ 90{
144 compat_xfs_inogrp_t __user *p32 = ubuffer; 91 if (get_user(in->newblocks, &arg32->newblocks) ||
145 long i; 92 get_user(in->imaxpct, &arg32->imaxpct))
93 return -XFS_ERROR(EFAULT);
94 return 0;
95}
96
97STATIC int
98xfs_compat_growfs_rt_copyin(
99 struct xfs_growfs_rt *in,
100 compat_xfs_growfs_rt_t __user *arg32)
101{
102 if (get_user(in->newblocks, &arg32->newblocks) ||
103 get_user(in->extsize, &arg32->extsize))
104 return -XFS_ERROR(EFAULT);
105 return 0;
106}
107
108STATIC int
109xfs_inumbers_fmt_compat(
110 void __user *ubuffer,
111 const xfs_inogrp_t *buffer,
112 long count,
113 long *written)
114{
115 compat_xfs_inogrp_t __user *p32 = ubuffer;
116 long i;
146 117
147 for (i = 0; i < count; i++) { 118 for (i = 0; i < count; i++) {
148 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) || 119 if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) ||
149 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) || 120 put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) ||
150 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask)) 121 put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask))
151 return -EFAULT; 122 return -XFS_ERROR(EFAULT);
152 } 123 }
153 *written = count * sizeof(*p32); 124 *written = count * sizeof(*p32);
154 return 0; 125 return 0;
155} 126}
156 127
157#else 128#else
158
159#define xfs_inumbers_fmt_compat xfs_inumbers_fmt 129#define xfs_inumbers_fmt_compat xfs_inumbers_fmt
160#define _PACKED 130#endif /* BROKEN_X86_ALIGNMENT */
161 131
162#endif 132STATIC int
133xfs_ioctl32_bstime_copyin(
134 xfs_bstime_t *bstime,
135 compat_xfs_bstime_t __user *bstime32)
136{
137 compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */
163 138
164/* XFS_IOC_FSBULKSTAT and friends */ 139 if (get_user(sec32, &bstime32->tv_sec) ||
140 get_user(bstime->tv_nsec, &bstime32->tv_nsec))
141 return -XFS_ERROR(EFAULT);
142 bstime->tv_sec = sec32;
143 return 0;
144}
145
146/* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */
147STATIC int
148xfs_ioctl32_bstat_copyin(
149 xfs_bstat_t *bstat,
150 compat_xfs_bstat_t __user *bstat32)
151{
152 if (get_user(bstat->bs_ino, &bstat32->bs_ino) ||
153 get_user(bstat->bs_mode, &bstat32->bs_mode) ||
154 get_user(bstat->bs_nlink, &bstat32->bs_nlink) ||
155 get_user(bstat->bs_uid, &bstat32->bs_uid) ||
156 get_user(bstat->bs_gid, &bstat32->bs_gid) ||
157 get_user(bstat->bs_rdev, &bstat32->bs_rdev) ||
158 get_user(bstat->bs_blksize, &bstat32->bs_blksize) ||
159 get_user(bstat->bs_size, &bstat32->bs_size) ||
160 xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) ||
161 xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) ||
162 xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) ||
163 get_user(bstat->bs_blocks, &bstat32->bs_size) ||
164 get_user(bstat->bs_xflags, &bstat32->bs_size) ||
165 get_user(bstat->bs_extsize, &bstat32->bs_extsize) ||
166 get_user(bstat->bs_extents, &bstat32->bs_extents) ||
167 get_user(bstat->bs_gen, &bstat32->bs_gen) ||
168 get_user(bstat->bs_projid, &bstat32->bs_projid) ||
169 get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) ||
170 get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) ||
171 get_user(bstat->bs_aextents, &bstat32->bs_aextents))
172 return -XFS_ERROR(EFAULT);
173 return 0;
174}
165 175
166typedef struct compat_xfs_bstime { 176/* XFS_IOC_FSBULKSTAT and friends */
167 __s32 tv_sec; /* seconds */
168 __s32 tv_nsec; /* and nanoseconds */
169} compat_xfs_bstime_t;
170 177
171STATIC int xfs_bstime_store_compat( 178STATIC int
172 compat_xfs_bstime_t __user *p32, 179xfs_bstime_store_compat(
173 const xfs_bstime_t *p) 180 compat_xfs_bstime_t __user *p32,
181 const xfs_bstime_t *p)
174{ 182{
175 __s32 sec32; 183 __s32 sec32;
176 184
177 sec32 = p->tv_sec; 185 sec32 = p->tv_sec;
178 if (put_user(sec32, &p32->tv_sec) || 186 if (put_user(sec32, &p32->tv_sec) ||
179 put_user(p->tv_nsec, &p32->tv_nsec)) 187 put_user(p->tv_nsec, &p32->tv_nsec))
180 return -EFAULT; 188 return -XFS_ERROR(EFAULT);
181 return 0; 189 return 0;
182} 190}
183 191
184typedef struct compat_xfs_bstat { 192/* Return 0 on success or positive error (to xfs_bulkstat()) */
185 __u64 bs_ino; /* inode number */ 193STATIC int
186 __u16 bs_mode; /* type and mode */ 194xfs_bulkstat_one_fmt_compat(
187 __u16 bs_nlink; /* number of links */
188 __u32 bs_uid; /* user id */
189 __u32 bs_gid; /* group id */
190 __u32 bs_rdev; /* device value */
191 __s32 bs_blksize; /* block size */
192 __s64 bs_size; /* file size */
193 compat_xfs_bstime_t bs_atime; /* access time */
194 compat_xfs_bstime_t bs_mtime; /* modify time */
195 compat_xfs_bstime_t bs_ctime; /* inode change time */
196 int64_t bs_blocks; /* number of blocks */
197 __u32 bs_xflags; /* extended flags */
198 __s32 bs_extsize; /* extent size */
199 __s32 bs_extents; /* number of extents */
200 __u32 bs_gen; /* generation count */
201 __u16 bs_projid; /* project id */
202 unsigned char bs_pad[14]; /* pad space, unused */
203 __u32 bs_dmevmask; /* DMIG event mask */
204 __u16 bs_dmstate; /* DMIG state info */
205 __u16 bs_aextents; /* attribute number of extents */
206} _PACKED compat_xfs_bstat_t;
207
208STATIC int xfs_bulkstat_one_fmt_compat(
209 void __user *ubuffer, 195 void __user *ubuffer,
196 int ubsize,
197 int *ubused,
210 const xfs_bstat_t *buffer) 198 const xfs_bstat_t *buffer)
211{ 199{
212 compat_xfs_bstat_t __user *p32 = ubuffer; 200 compat_xfs_bstat_t __user *p32 = ubuffer;
213 201
214 if (put_user(buffer->bs_ino, &p32->bs_ino) || 202 if (ubsize < sizeof(*p32))
215 put_user(buffer->bs_mode, &p32->bs_mode) || 203 return XFS_ERROR(ENOMEM);
216 put_user(buffer->bs_nlink, &p32->bs_nlink) || 204
217 put_user(buffer->bs_uid, &p32->bs_uid) || 205 if (put_user(buffer->bs_ino, &p32->bs_ino) ||
218 put_user(buffer->bs_gid, &p32->bs_gid) || 206 put_user(buffer->bs_mode, &p32->bs_mode) ||
219 put_user(buffer->bs_rdev, &p32->bs_rdev) || 207 put_user(buffer->bs_nlink, &p32->bs_nlink) ||
220 put_user(buffer->bs_blksize, &p32->bs_blksize) || 208 put_user(buffer->bs_uid, &p32->bs_uid) ||
221 put_user(buffer->bs_size, &p32->bs_size) || 209 put_user(buffer->bs_gid, &p32->bs_gid) ||
210 put_user(buffer->bs_rdev, &p32->bs_rdev) ||
211 put_user(buffer->bs_blksize, &p32->bs_blksize) ||
212 put_user(buffer->bs_size, &p32->bs_size) ||
222 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || 213 xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) ||
223 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || 214 xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) ||
224 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || 215 xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) ||
225 put_user(buffer->bs_blocks, &p32->bs_blocks) || 216 put_user(buffer->bs_blocks, &p32->bs_blocks) ||
226 put_user(buffer->bs_xflags, &p32->bs_xflags) || 217 put_user(buffer->bs_xflags, &p32->bs_xflags) ||
227 put_user(buffer->bs_extsize, &p32->bs_extsize) || 218 put_user(buffer->bs_extsize, &p32->bs_extsize) ||
228 put_user(buffer->bs_extents, &p32->bs_extents) || 219 put_user(buffer->bs_extents, &p32->bs_extents) ||
229 put_user(buffer->bs_gen, &p32->bs_gen) || 220 put_user(buffer->bs_gen, &p32->bs_gen) ||
230 put_user(buffer->bs_projid, &p32->bs_projid) || 221 put_user(buffer->bs_projid, &p32->bs_projid) ||
231 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || 222 put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) ||
232 put_user(buffer->bs_dmstate, &p32->bs_dmstate) || 223 put_user(buffer->bs_dmstate, &p32->bs_dmstate) ||
233 put_user(buffer->bs_aextents, &p32->bs_aextents)) 224 put_user(buffer->bs_aextents, &p32->bs_aextents))
234 return -EFAULT; 225 return XFS_ERROR(EFAULT);
235 return sizeof(*p32); 226 if (ubused)
227 *ubused = sizeof(*p32);
228 return 0;
236} 229}
237 230
238 231STATIC int
239 232xfs_bulkstat_one_compat(
240typedef struct compat_xfs_fsop_bulkreq { 233 xfs_mount_t *mp, /* mount point for filesystem */
241 compat_uptr_t lastip; /* last inode # pointer */ 234 xfs_ino_t ino, /* inode number to get data for */
242 __s32 icount; /* count of entries in buffer */ 235 void __user *buffer, /* buffer to place output in */
243 compat_uptr_t ubuffer; /* user buffer for inode desc. */ 236 int ubsize, /* size of buffer */
244 compat_uptr_t ocount; /* output count pointer */ 237 void *private_data, /* my private data */
245} compat_xfs_fsop_bulkreq_t; 238 xfs_daddr_t bno, /* starting bno of inode cluster */
246 239 int *ubused, /* bytes used by me */
247#define XFS_IOC_FSBULKSTAT_32 \ 240 void *dibuff, /* on-disk inode buffer */
248 _IOWR('X', 101, struct compat_xfs_fsop_bulkreq) 241 int *stat) /* BULKSTAT_RV_... */
249#define XFS_IOC_FSBULKSTAT_SINGLE_32 \ 242{
250 _IOWR('X', 102, struct compat_xfs_fsop_bulkreq) 243 return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
251#define XFS_IOC_FSINUMBERS_32 \ 244 xfs_bulkstat_one_fmt_compat, bno,
252 _IOWR('X', 103, struct compat_xfs_fsop_bulkreq) 245 ubused, dibuff, stat);
246}
253 247
254/* copied from xfs_ioctl.c */ 248/* copied from xfs_ioctl.c */
255STATIC int 249STATIC int
256xfs_ioc_bulkstat_compat( 250xfs_compat_ioc_bulkstat(
257 xfs_mount_t *mp, 251 xfs_mount_t *mp,
258 unsigned int cmd, 252 unsigned int cmd,
259 void __user *arg) 253 compat_xfs_fsop_bulkreq_t __user *p32)
260{ 254{
261 compat_xfs_fsop_bulkreq_t __user *p32 = (void __user *)arg;
262 u32 addr; 255 u32 addr;
263 xfs_fsop_bulkreq_t bulkreq; 256 xfs_fsop_bulkreq_t bulkreq;
264 int count; /* # of records returned */ 257 int count; /* # of records returned */
@@ -270,20 +263,20 @@ xfs_ioc_bulkstat_compat(
270 /* should be called again (unused here, but used in dmapi) */ 263 /* should be called again (unused here, but used in dmapi) */
271 264
272 if (!capable(CAP_SYS_ADMIN)) 265 if (!capable(CAP_SYS_ADMIN))
273 return -EPERM; 266 return -XFS_ERROR(EPERM);
274 267
275 if (XFS_FORCED_SHUTDOWN(mp)) 268 if (XFS_FORCED_SHUTDOWN(mp))
276 return -XFS_ERROR(EIO); 269 return -XFS_ERROR(EIO);
277 270
278 if (get_user(addr, &p32->lastip)) 271 if (get_user(addr, &p32->lastip))
279 return -EFAULT; 272 return -XFS_ERROR(EFAULT);
280 bulkreq.lastip = compat_ptr(addr); 273 bulkreq.lastip = compat_ptr(addr);
281 if (get_user(bulkreq.icount, &p32->icount) || 274 if (get_user(bulkreq.icount, &p32->icount) ||
282 get_user(addr, &p32->ubuffer)) 275 get_user(addr, &p32->ubuffer))
283 return -EFAULT; 276 return -XFS_ERROR(EFAULT);
284 bulkreq.ubuffer = compat_ptr(addr); 277 bulkreq.ubuffer = compat_ptr(addr);
285 if (get_user(addr, &p32->ocount)) 278 if (get_user(addr, &p32->ocount))
286 return -EFAULT; 279 return -XFS_ERROR(EFAULT);
287 bulkreq.ocount = compat_ptr(addr); 280 bulkreq.ocount = compat_ptr(addr);
288 281
289 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) 282 if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
@@ -295,17 +288,22 @@ xfs_ioc_bulkstat_compat(
295 if (bulkreq.ubuffer == NULL) 288 if (bulkreq.ubuffer == NULL)
296 return -XFS_ERROR(EINVAL); 289 return -XFS_ERROR(EINVAL);
297 290
298 if (cmd == XFS_IOC_FSINUMBERS) 291 if (cmd == XFS_IOC_FSINUMBERS_32) {
299 error = xfs_inumbers(mp, &inlast, &count, 292 error = xfs_inumbers(mp, &inlast, &count,
300 bulkreq.ubuffer, xfs_inumbers_fmt_compat); 293 bulkreq.ubuffer, xfs_inumbers_fmt_compat);
301 else { 294 } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) {
302 /* declare a var to get a warning in case the type changes */ 295 int res;
303 bulkstat_one_fmt_pf formatter = xfs_bulkstat_one_fmt_compat; 296
297 error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
298 sizeof(compat_xfs_bstat_t),
299 NULL, 0, NULL, NULL, &res);
300 } else if (cmd == XFS_IOC_FSBULKSTAT_32) {
304 error = xfs_bulkstat(mp, &inlast, &count, 301 error = xfs_bulkstat(mp, &inlast, &count,
305 xfs_bulkstat_one, formatter, 302 xfs_bulkstat_one_compat, NULL,
306 sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, 303 sizeof(compat_xfs_bstat_t), bulkreq.ubuffer,
307 BULKSTAT_FG_QUICK, &done); 304 BULKSTAT_FG_QUICK, &done);
308 } 305 } else
306 error = XFS_ERROR(EINVAL);
309 if (error) 307 if (error)
310 return -error; 308 return -error;
311 309
@@ -321,63 +319,306 @@ xfs_ioc_bulkstat_compat(
321 return 0; 319 return 0;
322} 320}
323 321
322STATIC int
323xfs_compat_handlereq_copyin(
324 xfs_fsop_handlereq_t *hreq,
325 compat_xfs_fsop_handlereq_t __user *arg32)
326{
327 compat_xfs_fsop_handlereq_t hreq32;
328
329 if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t)))
330 return -XFS_ERROR(EFAULT);
331
332 hreq->fd = hreq32.fd;
333 hreq->path = compat_ptr(hreq32.path);
334 hreq->oflags = hreq32.oflags;
335 hreq->ihandle = compat_ptr(hreq32.ihandle);
336 hreq->ihandlen = hreq32.ihandlen;
337 hreq->ohandle = compat_ptr(hreq32.ohandle);
338 hreq->ohandlen = compat_ptr(hreq32.ohandlen);
324 339
340 return 0;
341}
325 342
326typedef struct compat_xfs_fsop_handlereq { 343/*
327 __u32 fd; /* fd for FD_TO_HANDLE */ 344 * Convert userspace handle data into inode.
328 compat_uptr_t path; /* user pathname */ 345 *
329 __u32 oflags; /* open flags */ 346 * We use the fact that all the fsop_handlereq ioctl calls have a data
330 compat_uptr_t ihandle; /* user supplied handle */ 347 * structure argument whose first component is always a xfs_fsop_handlereq_t,
331 __u32 ihandlen; /* user supplied length */ 348 * so we can pass that sub structure into this handy, shared routine.
332 compat_uptr_t ohandle; /* user buffer for handle */ 349 *
333 compat_uptr_t ohandlen; /* user buffer length */ 350 * If no error, caller must always iput the returned inode.
334} compat_xfs_fsop_handlereq_t; 351 */
335 352STATIC int
336#define XFS_IOC_PATH_TO_FSHANDLE_32 \ 353xfs_vget_fsop_handlereq_compat(
337 _IOWR('X', 104, struct compat_xfs_fsop_handlereq) 354 xfs_mount_t *mp,
338#define XFS_IOC_PATH_TO_HANDLE_32 \ 355 struct inode *parinode, /* parent inode pointer */
339 _IOWR('X', 105, struct compat_xfs_fsop_handlereq) 356 compat_xfs_fsop_handlereq_t *hreq,
340#define XFS_IOC_FD_TO_HANDLE_32 \ 357 struct inode **inode)
341 _IOWR('X', 106, struct compat_xfs_fsop_handlereq)
342#define XFS_IOC_OPEN_BY_HANDLE_32 \
343 _IOWR('X', 107, struct compat_xfs_fsop_handlereq)
344#define XFS_IOC_READLINK_BY_HANDLE_32 \
345 _IOWR('X', 108, struct compat_xfs_fsop_handlereq)
346
347STATIC unsigned long xfs_ioctl32_fshandle(unsigned long arg)
348{ 358{
349 compat_xfs_fsop_handlereq_t __user *p32 = (void __user *)arg; 359 void __user *hanp;
350 xfs_fsop_handlereq_t __user *p = compat_alloc_user_space(sizeof(*p)); 360 size_t hlen;
351 u32 addr; 361 xfs_fid_t *xfid;
352 362 xfs_handle_t *handlep;
353 if (copy_in_user(&p->fd, &p32->fd, sizeof(__u32)) || 363 xfs_handle_t handle;
354 get_user(addr, &p32->path) || 364 xfs_inode_t *ip;
355 put_user(compat_ptr(addr), &p->path) || 365 xfs_ino_t ino;
356 copy_in_user(&p->oflags, &p32->oflags, sizeof(__u32)) || 366 __u32 igen;
357 get_user(addr, &p32->ihandle) || 367 int error;
358 put_user(compat_ptr(addr), &p->ihandle) || 368
359 copy_in_user(&p->ihandlen, &p32->ihandlen, sizeof(__u32)) || 369 /*
360 get_user(addr, &p32->ohandle) || 370 * Only allow handle opens under a directory.
361 put_user(compat_ptr(addr), &p->ohandle) || 371 */
362 get_user(addr, &p32->ohandlen) || 372 if (!S_ISDIR(parinode->i_mode))
363 put_user(compat_ptr(addr), &p->ohandlen)) 373 return XFS_ERROR(ENOTDIR);
364 return -EFAULT; 374
365 375 hanp = compat_ptr(hreq->ihandle);
366 return (unsigned long)p; 376 hlen = hreq->ihandlen;
377 handlep = &handle;
378
379 if (hlen < sizeof(handlep->ha_fsid) || hlen > sizeof(*handlep))
380 return XFS_ERROR(EINVAL);
381 if (copy_from_user(handlep, hanp, hlen))
382 return XFS_ERROR(EFAULT);
383 if (hlen < sizeof(*handlep))
384 memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen);
385 if (hlen > sizeof(handlep->ha_fsid)) {
386 if (handlep->ha_fid.fid_len !=
387 (hlen - sizeof(handlep->ha_fsid) -
388 sizeof(handlep->ha_fid.fid_len)) ||
389 handlep->ha_fid.fid_pad)
390 return XFS_ERROR(EINVAL);
391 }
392
393 /*
394 * Crack the handle, obtain the inode # & generation #
395 */
396 xfid = (struct xfs_fid *)&handlep->ha_fid;
397 if (xfid->fid_len == sizeof(*xfid) - sizeof(xfid->fid_len)) {
398 ino = xfid->fid_ino;
399 igen = xfid->fid_gen;
400 } else {
401 return XFS_ERROR(EINVAL);
402 }
403
404 /*
405 * Get the XFS inode, building a Linux inode to go with it.
406 */
407 error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
408 if (error)
409 return error;
410 if (ip == NULL)
411 return XFS_ERROR(EIO);
412 if (ip->i_d.di_gen != igen) {
413 xfs_iput_new(ip, XFS_ILOCK_SHARED);
414 return XFS_ERROR(ENOENT);
415 }
416
417 xfs_iunlock(ip, XFS_ILOCK_SHARED);
418
419 *inode = VFS_I(ip);
420 return 0;
367} 421}
368 422
423STATIC int
424xfs_compat_attrlist_by_handle(
425 xfs_mount_t *mp,
426 void __user *arg,
427 struct inode *parinode)
428{
429 int error;
430 attrlist_cursor_kern_t *cursor;
431 compat_xfs_fsop_attrlist_handlereq_t al_hreq;
432 struct inode *inode;
433 char *kbuf;
434
435 if (!capable(CAP_SYS_ADMIN))
436 return -XFS_ERROR(EPERM);
437 if (copy_from_user(&al_hreq, arg,
438 sizeof(compat_xfs_fsop_attrlist_handlereq_t)))
439 return -XFS_ERROR(EFAULT);
440 if (al_hreq.buflen > XATTR_LIST_MAX)
441 return -XFS_ERROR(EINVAL);
442
443 /*
444 * Reject flags, only allow namespaces.
445 */
446 if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE))
447 return -XFS_ERROR(EINVAL);
448
449 error = xfs_vget_fsop_handlereq_compat(mp, parinode, &al_hreq.hreq,
450 &inode);
451 if (error)
452 goto out;
453
454 kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
455 if (!kbuf)
456 goto out_vn_rele;
457
458 cursor = (attrlist_cursor_kern_t *)&al_hreq.pos;
459 error = xfs_attr_list(XFS_I(inode), kbuf, al_hreq.buflen,
460 al_hreq.flags, cursor);
461 if (error)
462 goto out_kfree;
463
464 if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen))
465 error = -EFAULT;
466
467 out_kfree:
468 kfree(kbuf);
469 out_vn_rele:
470 iput(inode);
471 out:
472 return -error;
473}
369 474
370STATIC long 475STATIC int
371xfs_compat_ioctl( 476xfs_compat_attrmulti_by_handle(
372 int mode, 477 xfs_mount_t *mp,
373 struct file *file, 478 void __user *arg,
374 unsigned cmd, 479 struct inode *parinode)
375 unsigned long arg) 480{
481 int error;
482 compat_xfs_attr_multiop_t *ops;
483 compat_xfs_fsop_attrmulti_handlereq_t am_hreq;
484 struct inode *inode;
485 unsigned int i, size;
486 char *attr_name;
487
488 if (!capable(CAP_SYS_ADMIN))
489 return -XFS_ERROR(EPERM);
490 if (copy_from_user(&am_hreq, arg,
491 sizeof(compat_xfs_fsop_attrmulti_handlereq_t)))
492 return -XFS_ERROR(EFAULT);
493
494 error = xfs_vget_fsop_handlereq_compat(mp, parinode, &am_hreq.hreq,
495 &inode);
496 if (error)
497 goto out;
498
499 error = E2BIG;
500 size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t);
501 if (!size || size > 16 * PAGE_SIZE)
502 goto out_vn_rele;
503
504 error = ENOMEM;
505 ops = kmalloc(size, GFP_KERNEL);
506 if (!ops)
507 goto out_vn_rele;
508
509 error = EFAULT;
510 if (copy_from_user(ops, compat_ptr(am_hreq.ops), size))
511 goto out_kfree_ops;
512
513 attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL);
514 if (!attr_name)
515 goto out_kfree_ops;
516
517
518 error = 0;
519 for (i = 0; i < am_hreq.opcount; i++) {
520 ops[i].am_error = strncpy_from_user(attr_name,
521 compat_ptr(ops[i].am_attrname),
522 MAXNAMELEN);
523 if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN)
524 error = -ERANGE;
525 if (ops[i].am_error < 0)
526 break;
527
528 switch (ops[i].am_opcode) {
529 case ATTR_OP_GET:
530 ops[i].am_error = xfs_attrmulti_attr_get(inode,
531 attr_name,
532 compat_ptr(ops[i].am_attrvalue),
533 &ops[i].am_length, ops[i].am_flags);
534 break;
535 case ATTR_OP_SET:
536 ops[i].am_error = xfs_attrmulti_attr_set(inode,
537 attr_name,
538 compat_ptr(ops[i].am_attrvalue),
539 ops[i].am_length, ops[i].am_flags);
540 break;
541 case ATTR_OP_REMOVE:
542 ops[i].am_error = xfs_attrmulti_attr_remove(inode,
543 attr_name, ops[i].am_flags);
544 break;
545 default:
546 ops[i].am_error = EINVAL;
547 }
548 }
549
550 if (copy_to_user(compat_ptr(am_hreq.ops), ops, size))
551 error = XFS_ERROR(EFAULT);
552
553 kfree(attr_name);
554 out_kfree_ops:
555 kfree(ops);
556 out_vn_rele:
557 iput(inode);
558 out:
559 return -error;
560}
561
562STATIC int
563xfs_compat_fssetdm_by_handle(
564 xfs_mount_t *mp,
565 void __user *arg,
566 struct inode *parinode)
567{
568 int error;
569 struct fsdmidata fsd;
570 compat_xfs_fsop_setdm_handlereq_t dmhreq;
571 struct inode *inode;
572
573 if (!capable(CAP_MKNOD))
574 return -XFS_ERROR(EPERM);
575 if (copy_from_user(&dmhreq, arg,
576 sizeof(compat_xfs_fsop_setdm_handlereq_t)))
577 return -XFS_ERROR(EFAULT);
578
579 error = xfs_vget_fsop_handlereq_compat(mp, parinode, &dmhreq.hreq,
580 &inode);
581 if (error)
582 return -error;
583
584 if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) {
585 error = -XFS_ERROR(EPERM);
586 goto out;
587 }
588
589 if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) {
590 error = -XFS_ERROR(EFAULT);
591 goto out;
592 }
593
594 error = -xfs_set_dmattrs(XFS_I(inode), fsd.fsd_dmevmask,
595 fsd.fsd_dmstate);
596
597out:
598 iput(inode);
599 return error;
600}
601
602long
603xfs_file_compat_ioctl(
604 struct file *filp,
605 unsigned cmd,
606 unsigned long p)
376{ 607{
377 struct inode *inode = file->f_path.dentry->d_inode; 608 struct inode *inode = filp->f_path.dentry->d_inode;
378 int error; 609 struct xfs_inode *ip = XFS_I(inode);
610 struct xfs_mount *mp = ip->i_mount;
611 void __user *arg = (void __user *)p;
612 int ioflags = 0;
613 int error;
614
615 if (filp->f_mode & FMODE_NOCMTIME)
616 ioflags |= IO_INVIS;
617
618 xfs_itrace_entry(ip);
379 619
380 switch (cmd) { 620 switch (cmd) {
621 /* No size or alignment issues on any arch */
381 case XFS_IOC_DIOINFO: 622 case XFS_IOC_DIOINFO:
382 case XFS_IOC_FSGEOMETRY: 623 case XFS_IOC_FSGEOMETRY:
383 case XFS_IOC_FSGETXATTR: 624 case XFS_IOC_FSGETXATTR:
@@ -387,48 +628,18 @@ xfs_compat_ioctl(
387 case XFS_IOC_GETBMAP: 628 case XFS_IOC_GETBMAP:
388 case XFS_IOC_GETBMAPA: 629 case XFS_IOC_GETBMAPA:
389 case XFS_IOC_GETBMAPX: 630 case XFS_IOC_GETBMAPX:
390/* not handled
391 case XFS_IOC_FSSETDM_BY_HANDLE:
392 case XFS_IOC_ATTRLIST_BY_HANDLE:
393 case XFS_IOC_ATTRMULTI_BY_HANDLE:
394*/
395 case XFS_IOC_FSCOUNTS: 631 case XFS_IOC_FSCOUNTS:
396 case XFS_IOC_SET_RESBLKS: 632 case XFS_IOC_SET_RESBLKS:
397 case XFS_IOC_GET_RESBLKS: 633 case XFS_IOC_GET_RESBLKS:
398 case XFS_IOC_FSGROWFSDATA:
399 case XFS_IOC_FSGROWFSLOG: 634 case XFS_IOC_FSGROWFSLOG:
400 case XFS_IOC_FSGROWFSRT:
401 case XFS_IOC_FREEZE: 635 case XFS_IOC_FREEZE:
402 case XFS_IOC_THAW: 636 case XFS_IOC_THAW:
403 case XFS_IOC_GOINGDOWN: 637 case XFS_IOC_GOINGDOWN:
404 case XFS_IOC_ERROR_INJECTION: 638 case XFS_IOC_ERROR_INJECTION:
405 case XFS_IOC_ERROR_CLEARALL: 639 case XFS_IOC_ERROR_CLEARALL:
406 break; 640 return xfs_file_ioctl(filp, cmd, p);
407 641#ifndef BROKEN_X86_ALIGNMENT
408 case XFS_IOC32_GETXFLAGS: 642 /* These are handled fine if no alignment issues */
409 case XFS_IOC32_SETXFLAGS:
410 case XFS_IOC32_GETVERSION:
411 cmd = _NATIVE_IOC(cmd, long);
412 break;
413#ifdef BROKEN_X86_ALIGNMENT
414 /* xfs_flock_t has wrong u32 vs u64 alignment */
415 case XFS_IOC_ALLOCSP_32:
416 case XFS_IOC_FREESP_32:
417 case XFS_IOC_ALLOCSP64_32:
418 case XFS_IOC_FREESP64_32:
419 case XFS_IOC_RESVSP_32:
420 case XFS_IOC_UNRESVSP_32:
421 case XFS_IOC_RESVSP64_32:
422 case XFS_IOC_UNRESVSP64_32:
423 arg = xfs_ioctl32_flock(arg);
424 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
425 break;
426 case XFS_IOC_FSGEOMETRY_V1_32:
427 arg = xfs_ioctl32_geom_v1(arg);
428 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_geom_v1);
429 break;
430
431#else /* These are handled fine if no alignment issues */
432 case XFS_IOC_ALLOCSP: 643 case XFS_IOC_ALLOCSP:
433 case XFS_IOC_FREESP: 644 case XFS_IOC_FREESP:
434 case XFS_IOC_RESVSP: 645 case XFS_IOC_RESVSP:
@@ -438,51 +649,97 @@ xfs_compat_ioctl(
438 case XFS_IOC_RESVSP64: 649 case XFS_IOC_RESVSP64:
439 case XFS_IOC_UNRESVSP64: 650 case XFS_IOC_UNRESVSP64:
440 case XFS_IOC_FSGEOMETRY_V1: 651 case XFS_IOC_FSGEOMETRY_V1:
441 break; 652 case XFS_IOC_FSGROWFSDATA:
653 case XFS_IOC_FSGROWFSRT:
654 return xfs_file_ioctl(filp, cmd, p);
655#else
656 case XFS_IOC_ALLOCSP_32:
657 case XFS_IOC_FREESP_32:
658 case XFS_IOC_ALLOCSP64_32:
659 case XFS_IOC_FREESP64_32:
660 case XFS_IOC_RESVSP_32:
661 case XFS_IOC_UNRESVSP_32:
662 case XFS_IOC_RESVSP64_32:
663 case XFS_IOC_UNRESVSP64_32: {
664 struct xfs_flock64 bf;
442 665
443 /* xfs_bstat_t still has wrong u32 vs u64 alignment */ 666 if (xfs_compat_flock64_copyin(&bf, arg))
444 case XFS_IOC_SWAPEXT: 667 return -XFS_ERROR(EFAULT);
445 break; 668 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
669 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf);
670 }
671 case XFS_IOC_FSGEOMETRY_V1_32:
672 return xfs_compat_ioc_fsgeometry_v1(mp, arg);
673 case XFS_IOC_FSGROWFSDATA_32: {
674 struct xfs_growfs_data in;
675
676 if (xfs_compat_growfs_data_copyin(&in, arg))
677 return -XFS_ERROR(EFAULT);
678 error = xfs_growfs_data(mp, &in);
679 return -error;
680 }
681 case XFS_IOC_FSGROWFSRT_32: {
682 struct xfs_growfs_rt in;
446 683
684 if (xfs_compat_growfs_rt_copyin(&in, arg))
685 return -XFS_ERROR(EFAULT);
686 error = xfs_growfs_rt(mp, &in);
687 return -error;
688 }
447#endif 689#endif
690 /* long changes size, but xfs only copiese out 32 bits */
691 case XFS_IOC_GETXFLAGS_32:
692 case XFS_IOC_SETXFLAGS_32:
693 case XFS_IOC_GETVERSION_32:
694 cmd = _NATIVE_IOC(cmd, long);
695 return xfs_file_ioctl(filp, cmd, p);
696 case XFS_IOC_SWAPEXT: {
697 struct xfs_swapext sxp;
698 struct compat_xfs_swapext __user *sxu = arg;
699
700 /* Bulk copy in up to the sx_stat field, then copy bstat */
701 if (copy_from_user(&sxp, sxu,
702 offsetof(struct xfs_swapext, sx_stat)) ||
703 xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat))
704 return -XFS_ERROR(EFAULT);
705 error = xfs_swapext(&sxp);
706 return -error;
707 }
448 case XFS_IOC_FSBULKSTAT_32: 708 case XFS_IOC_FSBULKSTAT_32:
449 case XFS_IOC_FSBULKSTAT_SINGLE_32: 709 case XFS_IOC_FSBULKSTAT_SINGLE_32:
450 case XFS_IOC_FSINUMBERS_32: 710 case XFS_IOC_FSINUMBERS_32:
451 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_bulkreq); 711 return xfs_compat_ioc_bulkstat(mp, cmd, arg);
452 return xfs_ioc_bulkstat_compat(XFS_I(inode)->i_mount,
453 cmd, (void __user*)arg);
454 case XFS_IOC_FD_TO_HANDLE_32: 712 case XFS_IOC_FD_TO_HANDLE_32:
455 case XFS_IOC_PATH_TO_HANDLE_32: 713 case XFS_IOC_PATH_TO_HANDLE_32:
456 case XFS_IOC_PATH_TO_FSHANDLE_32: 714 case XFS_IOC_PATH_TO_FSHANDLE_32: {
457 case XFS_IOC_OPEN_BY_HANDLE_32: 715 struct xfs_fsop_handlereq hreq;
458 case XFS_IOC_READLINK_BY_HANDLE_32: 716
459 arg = xfs_ioctl32_fshandle(arg); 717 if (xfs_compat_handlereq_copyin(&hreq, arg))
718 return -XFS_ERROR(EFAULT);
460 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); 719 cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq);
461 break; 720 return xfs_find_handle(cmd, &hreq);
462 default:
463 return -ENOIOCTLCMD;
464 } 721 }
722 case XFS_IOC_OPEN_BY_HANDLE_32: {
723 struct xfs_fsop_handlereq hreq;
465 724
466 error = xfs_ioctl(XFS_I(inode), file, mode, cmd, (void __user *)arg); 725 if (xfs_compat_handlereq_copyin(&hreq, arg))
467 xfs_iflags_set(XFS_I(inode), XFS_IMODIFIED); 726 return -XFS_ERROR(EFAULT);
468 727 return xfs_open_by_handle(mp, &hreq, filp, inode);
469 return error; 728 }
470} 729 case XFS_IOC_READLINK_BY_HANDLE_32: {
471 730 struct xfs_fsop_handlereq hreq;
472long
473xfs_file_compat_ioctl(
474 struct file *file,
475 unsigned cmd,
476 unsigned long arg)
477{
478 return xfs_compat_ioctl(0, file, cmd, arg);
479}
480 731
481long 732 if (xfs_compat_handlereq_copyin(&hreq, arg))
482xfs_file_compat_invis_ioctl( 733 return -XFS_ERROR(EFAULT);
483 struct file *file, 734 return xfs_readlink_by_handle(mp, &hreq, inode);
484 unsigned cmd, 735 }
485 unsigned long arg) 736 case XFS_IOC_ATTRLIST_BY_HANDLE_32:
486{ 737 return xfs_compat_attrlist_by_handle(mp, arg, inode);
487 return xfs_compat_ioctl(IO_INVIS, file, cmd, arg); 738 case XFS_IOC_ATTRMULTI_BY_HANDLE_32:
739 return xfs_compat_attrmulti_by_handle(mp, arg, inode);
740 case XFS_IOC_FSSETDM_BY_HANDLE_32:
741 return xfs_compat_fssetdm_by_handle(mp, arg, inode);
742 default:
743 return -XFS_ERROR(ENOIOCTLCMD);
744 }
488} 745}