Commit | Line | Data |
---|---|---|
cf664a64 PDM |
1 | /* |
2 | * ioctl32.c: Conversion between 32bit and 64bit native ioctls. | |
3 | * Separated from fs stuff by Arnd Bergmann <arnd@arndb.de> | |
4 | * | |
5 | * Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com) | |
6 | * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) | |
7 | * Copyright (C) 2001,2002 Andi Kleen, SuSE Labs | |
a2531293 | 8 | * Copyright (C) 2003 Pavel Machek (pavel@ucw.cz) |
cf664a64 | 9 | * Copyright (C) 2005 Philippe De Muyter (phdm@macqel.be) |
92f45bad | 10 | * Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl> |
cf664a64 PDM |
11 | * |
12 | * These routines maintain argument size conversion between 32bit and 64bit | |
13 | * ioctls. | |
14 | */ | |
15 | ||
0d0fbf81 | 16 | #include <linux/compat.h> |
133b7354 | 17 | #include <linux/module.h> |
b9d0aa6e | 18 | #include <linux/videodev2.h> |
ed45ce2c | 19 | #include <linux/v4l2-subdev.h> |
b9d0aa6e | 20 | #include <media/v4l2-dev.h> |
2864462e | 21 | #include <media/v4l2-ioctl.h> |
0d0fbf81 | 22 | |
069b7479 | 23 | static long native_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
92f45bad | 24 | { |
069b7479 | 25 | long ret = -ENOIOCTLCMD; |
92f45bad HV |
26 | |
27 | if (file->f_op->unlocked_ioctl) | |
28 | ret = file->f_op->unlocked_ioctl(file, cmd, arg); | |
92f45bad HV |
29 | |
30 | return ret; | |
31 | } | |
32 | ||
33 | ||
d1f81da2 | 34 | struct v4l2_clip32 { |
cf664a64 PDM |
35 | struct v4l2_rect c; |
36 | compat_caddr_t next; | |
37 | }; | |
38 | ||
d1f81da2 | 39 | struct v4l2_window32 { |
cf664a64 | 40 | struct v4l2_rect w; |
6016af82 | 41 | __u32 field; /* enum v4l2_field */ |
cf664a64 PDM |
42 | __u32 chromakey; |
43 | compat_caddr_t clips; /* actually struct v4l2_clip32 * */ | |
44 | __u32 clipcount; | |
45 | compat_caddr_t bitmap; | |
46 | }; | |
47 | ||
48 | static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) | |
49 | { | |
a113bc78 GM |
50 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_window32)) || |
51 | copy_from_user(&kp->w, &up->w, sizeof(up->w)) || | |
52 | get_user(kp->field, &up->field) || | |
53 | get_user(kp->chromakey, &up->chromakey) || | |
54 | get_user(kp->clipcount, &up->clipcount)) | |
55 | return -EFAULT; | |
cf664a64 PDM |
56 | if (kp->clipcount > 2048) |
57 | return -EINVAL; | |
58 | if (kp->clipcount) { | |
5b1a43d7 AV |
59 | struct v4l2_clip32 __user *uclips; |
60 | struct v4l2_clip __user *kclips; | |
cf664a64 | 61 | int n = kp->clipcount; |
5b1a43d7 | 62 | compat_caddr_t p; |
cf664a64 | 63 | |
5b1a43d7 AV |
64 | if (get_user(p, &up->clips)) |
65 | return -EFAULT; | |
66 | uclips = compat_ptr(p); | |
cf664a64 PDM |
67 | kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip)); |
68 | kp->clips = kclips; | |
69 | while (--n >= 0) { | |
5b1a43d7 AV |
70 | if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c))) |
71 | return -EFAULT; | |
72 | if (put_user(n ? kclips + 1 : NULL, &kclips->next)) | |
a113bc78 | 73 | return -EFAULT; |
cf664a64 PDM |
74 | uclips += 1; |
75 | kclips += 1; | |
76 | } | |
77 | } else | |
5b1a43d7 | 78 | kp->clips = NULL; |
cf664a64 PDM |
79 | return 0; |
80 | } | |
81 | ||
82 | static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) | |
83 | { | |
f2e6c6ad | 84 | if (copy_to_user(&up->w, &kp->w, sizeof(kp->w)) || |
a113bc78 GM |
85 | put_user(kp->field, &up->field) || |
86 | put_user(kp->chromakey, &up->chromakey) || | |
87 | put_user(kp->clipcount, &up->clipcount)) | |
88 | return -EFAULT; | |
cf664a64 PDM |
89 | return 0; |
90 | } | |
91 | ||
92 | static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) | |
93 | { | |
5b1a43d7 AV |
94 | if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format))) |
95 | return -EFAULT; | |
a113bc78 | 96 | return 0; |
cf664a64 PDM |
97 | } |
98 | ||
52a3082f PO |
99 | static inline int get_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp, |
100 | struct v4l2_pix_format_mplane __user *up) | |
101 | { | |
102 | if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format_mplane))) | |
103 | return -EFAULT; | |
104 | return 0; | |
105 | } | |
106 | ||
cf664a64 PDM |
107 | static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) |
108 | { | |
5b1a43d7 AV |
109 | if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format))) |
110 | return -EFAULT; | |
a113bc78 | 111 | return 0; |
cf664a64 PDM |
112 | } |
113 | ||
52a3082f PO |
114 | static inline int put_v4l2_pix_format_mplane(struct v4l2_pix_format_mplane *kp, |
115 | struct v4l2_pix_format_mplane __user *up) | |
116 | { | |
117 | if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format_mplane))) | |
118 | return -EFAULT; | |
119 | return 0; | |
120 | } | |
121 | ||
cf664a64 PDM |
122 | static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) |
123 | { | |
5b1a43d7 AV |
124 | if (copy_from_user(kp, up, sizeof(struct v4l2_vbi_format))) |
125 | return -EFAULT; | |
a113bc78 | 126 | return 0; |
cf664a64 PDM |
127 | } |
128 | ||
129 | static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) | |
130 | { | |
5b1a43d7 AV |
131 | if (copy_to_user(up, kp, sizeof(struct v4l2_vbi_format))) |
132 | return -EFAULT; | |
a113bc78 | 133 | return 0; |
cf664a64 PDM |
134 | } |
135 | ||
92f45bad HV |
136 | static inline int get_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up) |
137 | { | |
138 | if (copy_from_user(kp, up, sizeof(struct v4l2_sliced_vbi_format))) | |
139 | return -EFAULT; | |
140 | return 0; | |
141 | } | |
142 | ||
143 | static inline int put_v4l2_sliced_vbi_format(struct v4l2_sliced_vbi_format *kp, struct v4l2_sliced_vbi_format __user *up) | |
144 | { | |
145 | if (copy_to_user(up, kp, sizeof(struct v4l2_sliced_vbi_format))) | |
146 | return -EFAULT; | |
147 | return 0; | |
148 | } | |
149 | ||
d5beb67b HV |
150 | static inline int get_v4l2_sdr_format(struct v4l2_sdr_format *kp, struct v4l2_sdr_format __user *up) |
151 | { | |
152 | if (copy_from_user(kp, up, sizeof(struct v4l2_sdr_format))) | |
153 | return -EFAULT; | |
154 | return 0; | |
155 | } | |
156 | ||
157 | static inline int put_v4l2_sdr_format(struct v4l2_sdr_format *kp, struct v4l2_sdr_format __user *up) | |
158 | { | |
159 | if (copy_to_user(up, kp, sizeof(struct v4l2_sdr_format))) | |
160 | return -EFAULT; | |
161 | return 0; | |
162 | } | |
163 | ||
d1f81da2 | 164 | struct v4l2_format32 { |
6016af82 | 165 | __u32 type; /* enum v4l2_buf_type */ |
d1f81da2 | 166 | union { |
92f45bad | 167 | struct v4l2_pix_format pix; |
52a3082f | 168 | struct v4l2_pix_format_mplane pix_mp; |
92f45bad HV |
169 | struct v4l2_window32 win; |
170 | struct v4l2_vbi_format vbi; | |
171 | struct v4l2_sliced_vbi_format sliced; | |
d5beb67b | 172 | struct v4l2_sdr_format sdr; |
d1f81da2 | 173 | __u8 raw_data[200]; /* user-defined */ |
cf664a64 PDM |
174 | } fmt; |
175 | }; | |
176 | ||
09362ec2 GL |
177 | /** |
178 | * struct v4l2_create_buffers32 - VIDIOC_CREATE_BUFS32 argument | |
179 | * @index: on return, index of the first created buffer | |
180 | * @count: entry: number of requested buffers, | |
181 | * return: number of created buffers | |
182 | * @memory: buffer memory type | |
183 | * @format: frame format, for which buffers are requested | |
184 | * @reserved: future extensions | |
185 | */ | |
2150158b | 186 | struct v4l2_create_buffers32 { |
09362ec2 | 187 | __u32 index; |
2150158b | 188 | __u32 count; |
6016af82 | 189 | __u32 memory; /* enum v4l2_memory */ |
09362ec2 | 190 | struct v4l2_format32 format; |
2150158b GL |
191 | __u32 reserved[8]; |
192 | }; | |
193 | ||
194 | static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) | |
cf664a64 | 195 | { |
ec77581a GL |
196 | if (get_user(kp->type, &up->type)) |
197 | return -EFAULT; | |
198 | ||
cf664a64 PDM |
199 | switch (kp->type) { |
200 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
92f45bad | 201 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
cf664a64 | 202 | return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); |
52a3082f PO |
203 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
204 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
205 | return get_v4l2_pix_format_mplane(&kp->fmt.pix_mp, | |
206 | &up->fmt.pix_mp); | |
cf664a64 | 207 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
92f45bad | 208 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
cf664a64 PDM |
209 | return get_v4l2_window32(&kp->fmt.win, &up->fmt.win); |
210 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
92f45bad | 211 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
cf664a64 | 212 | return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); |
92f45bad HV |
213 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
214 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
215 | return get_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced); | |
d5beb67b | 216 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
9effc72f | 217 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
d5beb67b | 218 | return get_v4l2_sdr_format(&kp->fmt.sdr, &up->fmt.sdr); |
cf664a64 | 219 | default: |
d5beb67b | 220 | pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n", |
cf664a64 | 221 | kp->type); |
92f45bad | 222 | return -EINVAL; |
cf664a64 PDM |
223 | } |
224 | } | |
225 | ||
2150158b GL |
226 | static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) |
227 | { | |
ec77581a GL |
228 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32))) |
229 | return -EFAULT; | |
2150158b GL |
230 | return __get_v4l2_format32(kp, up); |
231 | } | |
232 | ||
233 | static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up) | |
234 | { | |
235 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) || | |
ec77581a GL |
236 | copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format))) |
237 | return -EFAULT; | |
2150158b GL |
238 | return __get_v4l2_format32(&kp->format, &up->format); |
239 | } | |
240 | ||
241 | static int __put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) | |
cf664a64 | 242 | { |
6ed9b285 GL |
243 | if (put_user(kp->type, &up->type)) |
244 | return -EFAULT; | |
245 | ||
cf664a64 PDM |
246 | switch (kp->type) { |
247 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
92f45bad | 248 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
cf664a64 | 249 | return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); |
52a3082f PO |
250 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
251 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
252 | return put_v4l2_pix_format_mplane(&kp->fmt.pix_mp, | |
253 | &up->fmt.pix_mp); | |
cf664a64 | 254 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
92f45bad | 255 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
cf664a64 PDM |
256 | return put_v4l2_window32(&kp->fmt.win, &up->fmt.win); |
257 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
92f45bad | 258 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
cf664a64 | 259 | return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); |
92f45bad HV |
260 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: |
261 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
262 | return put_v4l2_sliced_vbi_format(&kp->fmt.sliced, &up->fmt.sliced); | |
d5beb67b | 263 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
9effc72f | 264 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
d5beb67b | 265 | return put_v4l2_sdr_format(&kp->fmt.sdr, &up->fmt.sdr); |
cf664a64 | 266 | default: |
d5beb67b | 267 | pr_info("compat_ioctl32: unexpected VIDIOC_FMT type %d\n", |
92f45bad HV |
268 | kp->type); |
269 | return -EINVAL; | |
cf664a64 PDM |
270 | } |
271 | } | |
272 | ||
2150158b GL |
273 | static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) |
274 | { | |
6ed9b285 | 275 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32))) |
2150158b GL |
276 | return -EFAULT; |
277 | return __put_v4l2_format32(kp, up); | |
278 | } | |
279 | ||
280 | static int put_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up) | |
281 | { | |
282 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_create_buffers32)) || | |
baf43c6e TL |
283 | copy_to_user(up, kp, offsetof(struct v4l2_create_buffers32, format)) || |
284 | copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved))) | |
6ed9b285 | 285 | return -EFAULT; |
2150158b GL |
286 | return __put_v4l2_format32(&kp->format, &up->format); |
287 | } | |
288 | ||
d1f81da2 | 289 | struct v4l2_standard32 { |
cf664a64 | 290 | __u32 index; |
655e9780 | 291 | compat_u64 id; |
cf664a64 PDM |
292 | __u8 name[24]; |
293 | struct v4l2_fract frameperiod; /* Frames, not fields */ | |
294 | __u32 framelines; | |
295 | __u32 reserved[4]; | |
296 | }; | |
297 | ||
298 | static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) | |
299 | { | |
300 | /* other fields are not set by the user, nor used by the driver */ | |
a113bc78 GM |
301 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) || |
302 | get_user(kp->index, &up->index)) | |
303 | return -EFAULT; | |
304 | return 0; | |
cf664a64 PDM |
305 | } |
306 | ||
307 | static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) | |
308 | { | |
d1f81da2 | 309 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) || |
a113bc78 | 310 | put_user(kp->index, &up->index) || |
655e9780 | 311 | put_user(kp->id, &up->id) || |
a113bc78 GM |
312 | copy_to_user(up->name, kp->name, 24) || |
313 | copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) || | |
314 | put_user(kp->framelines, &up->framelines) || | |
315 | copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32))) | |
316 | return -EFAULT; | |
317 | return 0; | |
318 | } | |
319 | ||
52a3082f PO |
320 | struct v4l2_plane32 { |
321 | __u32 bytesused; | |
322 | __u32 length; | |
323 | union { | |
324 | __u32 mem_offset; | |
325 | compat_long_t userptr; | |
051c7788 | 326 | __s32 fd; |
52a3082f PO |
327 | } m; |
328 | __u32 data_offset; | |
329 | __u32 reserved[11]; | |
330 | }; | |
331 | ||
d1f81da2 | 332 | struct v4l2_buffer32 { |
cf664a64 | 333 | __u32 index; |
6016af82 | 334 | __u32 type; /* enum v4l2_buf_type */ |
cf664a64 PDM |
335 | __u32 bytesused; |
336 | __u32 flags; | |
6016af82 | 337 | __u32 field; /* enum v4l2_field */ |
cf664a64 PDM |
338 | struct compat_timeval timestamp; |
339 | struct v4l2_timecode timecode; | |
340 | __u32 sequence; | |
341 | ||
342 | /* memory location */ | |
6016af82 | 343 | __u32 memory; /* enum v4l2_memory */ |
cf664a64 PDM |
344 | union { |
345 | __u32 offset; | |
346 | compat_long_t userptr; | |
52a3082f | 347 | compat_caddr_t planes; |
051c7788 | 348 | __s32 fd; |
cf664a64 PDM |
349 | } m; |
350 | __u32 length; | |
2b719d7b | 351 | __u32 reserved2; |
cf664a64 PDM |
352 | __u32 reserved; |
353 | }; | |
354 | ||
8ae632b1 | 355 | static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32, |
52a3082f PO |
356 | enum v4l2_memory memory) |
357 | { | |
358 | void __user *up_pln; | |
359 | compat_long_t p; | |
360 | ||
361 | if (copy_in_user(up, up32, 2 * sizeof(__u32)) || | |
362 | copy_in_user(&up->data_offset, &up32->data_offset, | |
363 | sizeof(__u32))) | |
364 | return -EFAULT; | |
365 | ||
366 | if (memory == V4L2_MEMORY_USERPTR) { | |
367 | if (get_user(p, &up32->m.userptr)) | |
368 | return -EFAULT; | |
369 | up_pln = compat_ptr(p); | |
370 | if (put_user((unsigned long)up_pln, &up->m.userptr)) | |
371 | return -EFAULT; | |
051c7788 SS |
372 | } else if (memory == V4L2_MEMORY_DMABUF) { |
373 | if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(int))) | |
374 | return -EFAULT; | |
52a3082f PO |
375 | } else { |
376 | if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset, | |
377 | sizeof(__u32))) | |
378 | return -EFAULT; | |
379 | } | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
8ae632b1 | 384 | static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32, |
52a3082f PO |
385 | enum v4l2_memory memory) |
386 | { | |
387 | if (copy_in_user(up32, up, 2 * sizeof(__u32)) || | |
388 | copy_in_user(&up32->data_offset, &up->data_offset, | |
389 | sizeof(__u32))) | |
390 | return -EFAULT; | |
391 | ||
392 | /* For MMAP, driver might've set up the offset, so copy it back. | |
393 | * USERPTR stays the same (was userspace-provided), so no copying. */ | |
394 | if (memory == V4L2_MEMORY_MMAP) | |
395 | if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset, | |
396 | sizeof(__u32))) | |
397 | return -EFAULT; | |
051c7788 SS |
398 | /* For DMABUF, driver might've set up the fd, so copy it back. */ |
399 | if (memory == V4L2_MEMORY_DMABUF) | |
400 | if (copy_in_user(&up32->m.fd, &up->m.fd, | |
401 | sizeof(int))) | |
402 | return -EFAULT; | |
52a3082f PO |
403 | |
404 | return 0; | |
405 | } | |
406 | ||
cf664a64 PDM |
407 | static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) |
408 | { | |
52a3082f PO |
409 | struct v4l2_plane32 __user *uplane32; |
410 | struct v4l2_plane __user *uplane; | |
411 | compat_caddr_t p; | |
412 | int num_planes; | |
413 | int ret; | |
cf664a64 | 414 | |
a113bc78 GM |
415 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) || |
416 | get_user(kp->index, &up->index) || | |
417 | get_user(kp->type, &up->type) || | |
418 | get_user(kp->flags, &up->flags) || | |
7df5ab87 TL |
419 | get_user(kp->memory, &up->memory) || |
420 | get_user(kp->length, &up->length)) | |
a113bc78 | 421 | return -EFAULT; |
52a3082f PO |
422 | |
423 | if (V4L2_TYPE_IS_OUTPUT(kp->type)) | |
424 | if (get_user(kp->bytesused, &up->bytesused) || | |
425 | get_user(kp->field, &up->field) || | |
426 | get_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) || | |
427 | get_user(kp->timestamp.tv_usec, | |
428 | &up->timestamp.tv_usec)) | |
22c859fa | 429 | return -EFAULT; |
cf664a64 | 430 | |
52a3082f | 431 | if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) { |
52a3082f PO |
432 | num_planes = kp->length; |
433 | if (num_planes == 0) { | |
434 | kp->m.planes = NULL; | |
435 | /* num_planes == 0 is legal, e.g. when userspace doesn't | |
436 | * need planes array on DQBUF*/ | |
437 | return 0; | |
cf664a64 | 438 | } |
52a3082f PO |
439 | |
440 | if (get_user(p, &up->m.planes)) | |
a113bc78 | 441 | return -EFAULT; |
52a3082f PO |
442 | |
443 | uplane32 = compat_ptr(p); | |
444 | if (!access_ok(VERIFY_READ, uplane32, | |
445 | num_planes * sizeof(struct v4l2_plane32))) | |
446 | return -EFAULT; | |
447 | ||
448 | /* We don't really care if userspace decides to kill itself | |
449 | * by passing a very big num_planes value */ | |
450 | uplane = compat_alloc_user_space(num_planes * | |
451 | sizeof(struct v4l2_plane)); | |
8ae632b1 | 452 | kp->m.planes = (__force struct v4l2_plane *)uplane; |
52a3082f PO |
453 | |
454 | while (--num_planes >= 0) { | |
455 | ret = get_v4l2_plane32(uplane, uplane32, kp->memory); | |
456 | if (ret) | |
457 | return ret; | |
458 | ++uplane; | |
459 | ++uplane32; | |
460 | } | |
461 | } else { | |
462 | switch (kp->memory) { | |
463 | case V4L2_MEMORY_MMAP: | |
7df5ab87 | 464 | if (get_user(kp->m.offset, &up->m.offset)) |
52a3082f PO |
465 | return -EFAULT; |
466 | break; | |
467 | case V4L2_MEMORY_USERPTR: | |
468 | { | |
469 | compat_long_t tmp; | |
470 | ||
7df5ab87 | 471 | if (get_user(tmp, &up->m.userptr)) |
52a3082f PO |
472 | return -EFAULT; |
473 | ||
474 | kp->m.userptr = (unsigned long)compat_ptr(tmp); | |
475 | } | |
476 | break; | |
477 | case V4L2_MEMORY_OVERLAY: | |
478 | if (get_user(kp->m.offset, &up->m.offset)) | |
479 | return -EFAULT; | |
480 | break; | |
051c7788 SS |
481 | case V4L2_MEMORY_DMABUF: |
482 | if (get_user(kp->m.fd, &up->m.fd)) | |
483 | return -EFAULT; | |
484 | break; | |
52a3082f | 485 | } |
cf664a64 | 486 | } |
52a3082f | 487 | |
cf664a64 PDM |
488 | return 0; |
489 | } | |
490 | ||
491 | static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) | |
492 | { | |
52a3082f PO |
493 | struct v4l2_plane32 __user *uplane32; |
494 | struct v4l2_plane __user *uplane; | |
495 | compat_caddr_t p; | |
496 | int num_planes; | |
497 | int ret; | |
498 | ||
a113bc78 GM |
499 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) || |
500 | put_user(kp->index, &up->index) || | |
501 | put_user(kp->type, &up->type) || | |
502 | put_user(kp->flags, &up->flags) || | |
cc831f84 | 503 | put_user(kp->memory, &up->memory)) |
a113bc78 | 504 | return -EFAULT; |
52a3082f | 505 | |
a113bc78 GM |
506 | if (put_user(kp->bytesused, &up->bytesused) || |
507 | put_user(kp->field, &up->field) || | |
508 | put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) || | |
509 | put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) || | |
510 | copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) || | |
511 | put_user(kp->sequence, &up->sequence) || | |
2b719d7b | 512 | put_user(kp->reserved2, &up->reserved2) || |
7df5ab87 TL |
513 | put_user(kp->reserved, &up->reserved) || |
514 | put_user(kp->length, &up->length)) | |
a113bc78 | 515 | return -EFAULT; |
52a3082f PO |
516 | |
517 | if (V4L2_TYPE_IS_MULTIPLANAR(kp->type)) { | |
518 | num_planes = kp->length; | |
519 | if (num_planes == 0) | |
520 | return 0; | |
521 | ||
8ae632b1 | 522 | uplane = (__force struct v4l2_plane __user *)kp->m.planes; |
52a3082f PO |
523 | if (get_user(p, &up->m.planes)) |
524 | return -EFAULT; | |
525 | uplane32 = compat_ptr(p); | |
526 | ||
527 | while (--num_planes >= 0) { | |
528 | ret = put_v4l2_plane32(uplane, uplane32, kp->memory); | |
529 | if (ret) | |
530 | return ret; | |
531 | ++uplane; | |
532 | ++uplane32; | |
533 | } | |
534 | } else { | |
535 | switch (kp->memory) { | |
536 | case V4L2_MEMORY_MMAP: | |
7df5ab87 | 537 | if (put_user(kp->m.offset, &up->m.offset)) |
52a3082f PO |
538 | return -EFAULT; |
539 | break; | |
540 | case V4L2_MEMORY_USERPTR: | |
7df5ab87 | 541 | if (put_user(kp->m.userptr, &up->m.userptr)) |
52a3082f PO |
542 | return -EFAULT; |
543 | break; | |
544 | case V4L2_MEMORY_OVERLAY: | |
545 | if (put_user(kp->m.offset, &up->m.offset)) | |
546 | return -EFAULT; | |
547 | break; | |
051c7788 SS |
548 | case V4L2_MEMORY_DMABUF: |
549 | if (put_user(kp->m.fd, &up->m.fd)) | |
550 | return -EFAULT; | |
551 | break; | |
52a3082f PO |
552 | } |
553 | } | |
554 | ||
cf664a64 PDM |
555 | return 0; |
556 | } | |
557 | ||
d1f81da2 | 558 | struct v4l2_framebuffer32 { |
cf664a64 PDM |
559 | __u32 capability; |
560 | __u32 flags; | |
561 | compat_caddr_t base; | |
d52e2381 LP |
562 | struct { |
563 | __u32 width; | |
564 | __u32 height; | |
565 | __u32 pixelformat; | |
566 | __u32 field; | |
567 | __u32 bytesperline; | |
568 | __u32 sizeimage; | |
569 | __u32 colorspace; | |
570 | __u32 priv; | |
571 | } fmt; | |
cf664a64 PDM |
572 | }; |
573 | ||
13d133bc PDM |
574 | static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
575 | { | |
576 | u32 tmp; | |
577 | ||
a113bc78 GM |
578 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) || |
579 | get_user(tmp, &up->base) || | |
580 | get_user(kp->capability, &up->capability) || | |
d52e2381 LP |
581 | get_user(kp->flags, &up->flags) || |
582 | copy_from_user(&kp->fmt, &up->fmt, sizeof(up->fmt))) | |
a113bc78 | 583 | return -EFAULT; |
8ae632b1 | 584 | kp->base = (__force void *)compat_ptr(tmp); |
13d133bc PDM |
585 | return 0; |
586 | } | |
587 | ||
cf664a64 PDM |
588 | static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
589 | { | |
590 | u32 tmp = (u32)((unsigned long)kp->base); | |
591 | ||
d1f81da2 | 592 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) || |
a113bc78 GM |
593 | put_user(tmp, &up->base) || |
594 | put_user(kp->capability, &up->capability) || | |
d52e2381 LP |
595 | put_user(kp->flags, &up->flags) || |
596 | copy_to_user(&up->fmt, &kp->fmt, sizeof(up->fmt))) | |
a113bc78 | 597 | return -EFAULT; |
cf664a64 PDM |
598 | return 0; |
599 | } | |
600 | ||
92f45bad HV |
601 | struct v4l2_input32 { |
602 | __u32 index; /* Which input */ | |
603 | __u8 name[32]; /* Label */ | |
604 | __u32 type; /* Type of input */ | |
605 | __u32 audioset; /* Associated audios (bitfield) */ | |
606 | __u32 tuner; /* Associated tuner */ | |
655e9780 | 607 | compat_u64 std; |
92f45bad HV |
608 | __u32 status; |
609 | __u32 reserved[4]; | |
655e9780 | 610 | }; |
92f45bad HV |
611 | |
612 | /* The 64-bit v4l2_input struct has extra padding at the end of the struct. | |
613 | Otherwise it is identical to the 32-bit version. */ | |
614 | static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up) | |
a113bc78 | 615 | { |
92f45bad | 616 | if (copy_from_user(kp, up, sizeof(struct v4l2_input32))) |
5b1a43d7 | 617 | return -EFAULT; |
a113bc78 GM |
618 | return 0; |
619 | } | |
620 | ||
92f45bad | 621 | static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input32 __user *up) |
a113bc78 | 622 | { |
92f45bad | 623 | if (copy_to_user(up, kp, sizeof(struct v4l2_input32))) |
5b1a43d7 | 624 | return -EFAULT; |
a113bc78 GM |
625 | return 0; |
626 | } | |
627 | ||
92f45bad | 628 | struct v4l2_ext_controls32 { |
0f8017be | 629 | __u32 which; |
28c50292 RR |
630 | __u32 count; |
631 | __u32 error_idx; | |
632 | __u32 reserved[2]; | |
633 | compat_caddr_t controls; /* actually struct v4l2_ext_control32 * */ | |
eb4eeccc MCC |
634 | }; |
635 | ||
6b5a9492 HV |
636 | struct v4l2_ext_control32 { |
637 | __u32 id; | |
638 | __u32 size; | |
639 | __u32 reserved2[1]; | |
640 | union { | |
641 | __s32 value; | |
642 | __s64 value64; | |
643 | compat_caddr_t string; /* actually char * */ | |
644 | }; | |
645 | } __attribute__ ((packed)); | |
646 | ||
647 | /* The following function really belong in v4l2-common, but that causes | |
648 | a circular dependency between modules. We need to think about this, but | |
649 | for now this will do. */ | |
650 | ||
651 | /* Return non-zero if this control is a pointer type. Currently only | |
fdf82dc2 | 652 | type STRING is a pointer type. */ |
6b5a9492 HV |
653 | static inline int ctrl_is_pointer(u32 id) |
654 | { | |
fdf82dc2 EV |
655 | switch (id) { |
656 | case V4L2_CID_RDS_TX_PS_NAME: | |
657 | case V4L2_CID_RDS_TX_RADIO_TEXT: | |
658 | return 1; | |
659 | default: | |
660 | return 0; | |
661 | } | |
6b5a9492 HV |
662 | } |
663 | ||
92f45bad | 664 | static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up) |
eb4eeccc | 665 | { |
6b5a9492 | 666 | struct v4l2_ext_control32 __user *ucontrols; |
92f45bad HV |
667 | struct v4l2_ext_control __user *kcontrols; |
668 | int n; | |
669 | compat_caddr_t p; | |
670 | ||
671 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_ext_controls32)) || | |
0f8017be | 672 | get_user(kp->which, &up->which) || |
92f45bad HV |
673 | get_user(kp->count, &up->count) || |
674 | get_user(kp->error_idx, &up->error_idx) || | |
28c50292 RR |
675 | copy_from_user(kp->reserved, up->reserved, |
676 | sizeof(kp->reserved))) | |
92f45bad HV |
677 | return -EFAULT; |
678 | n = kp->count; | |
679 | if (n == 0) { | |
680 | kp->controls = NULL; | |
681 | return 0; | |
682 | } | |
683 | if (get_user(p, &up->controls)) | |
684 | return -EFAULT; | |
685 | ucontrols = compat_ptr(p); | |
52a3082f PO |
686 | if (!access_ok(VERIFY_READ, ucontrols, |
687 | n * sizeof(struct v4l2_ext_control32))) | |
92f45bad HV |
688 | return -EFAULT; |
689 | kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control)); | |
8ae632b1 | 690 | kp->controls = (__force struct v4l2_ext_control *)kcontrols; |
92f45bad | 691 | while (--n >= 0) { |
8ae632b1 HV |
692 | u32 id; |
693 | ||
52a3082f | 694 | if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols))) |
92f45bad | 695 | return -EFAULT; |
8ae632b1 HV |
696 | if (get_user(id, &kcontrols->id)) |
697 | return -EFAULT; | |
698 | if (ctrl_is_pointer(id)) { | |
6b5a9492 HV |
699 | void __user *s; |
700 | ||
701 | if (get_user(p, &ucontrols->string)) | |
702 | return -EFAULT; | |
703 | s = compat_ptr(p); | |
704 | if (put_user(s, &kcontrols->string)) | |
705 | return -EFAULT; | |
706 | } | |
92f45bad HV |
707 | ucontrols++; |
708 | kcontrols++; | |
709 | } | |
eb4eeccc MCC |
710 | return 0; |
711 | } | |
712 | ||
92f45bad | 713 | static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up) |
0d0fbf81 | 714 | { |
6b5a9492 | 715 | struct v4l2_ext_control32 __user *ucontrols; |
8ae632b1 HV |
716 | struct v4l2_ext_control __user *kcontrols = |
717 | (__force struct v4l2_ext_control __user *)kp->controls; | |
92f45bad HV |
718 | int n = kp->count; |
719 | compat_caddr_t p; | |
720 | ||
721 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_ext_controls32)) || | |
0f8017be | 722 | put_user(kp->which, &up->which) || |
92f45bad HV |
723 | put_user(kp->count, &up->count) || |
724 | put_user(kp->error_idx, &up->error_idx) || | |
725 | copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved))) | |
726 | return -EFAULT; | |
727 | if (!kp->count) | |
728 | return 0; | |
a113bc78 | 729 | |
92f45bad | 730 | if (get_user(p, &up->controls)) |
0d0fbf81 | 731 | return -EFAULT; |
92f45bad | 732 | ucontrols = compat_ptr(p); |
52a3082f PO |
733 | if (!access_ok(VERIFY_WRITE, ucontrols, |
734 | n * sizeof(struct v4l2_ext_control32))) | |
0d0fbf81 AB |
735 | return -EFAULT; |
736 | ||
92f45bad | 737 | while (--n >= 0) { |
6b5a9492 | 738 | unsigned size = sizeof(*ucontrols); |
8ae632b1 | 739 | u32 id; |
6b5a9492 | 740 | |
8ae632b1 HV |
741 | if (get_user(id, &kcontrols->id)) |
742 | return -EFAULT; | |
6b5a9492 HV |
743 | /* Do not modify the pointer when copying a pointer control. |
744 | The contents of the pointer was changed, not the pointer | |
745 | itself. */ | |
8ae632b1 | 746 | if (ctrl_is_pointer(id)) |
6b5a9492 HV |
747 | size -= sizeof(ucontrols->value64); |
748 | if (copy_in_user(ucontrols, kcontrols, size)) | |
92f45bad HV |
749 | return -EFAULT; |
750 | ucontrols++; | |
751 | kcontrols++; | |
0d0fbf81 | 752 | } |
92f45bad | 753 | return 0; |
0d0fbf81 | 754 | } |
92f45bad | 755 | |
2330fb82 HV |
756 | struct v4l2_event32 { |
757 | __u32 type; | |
758 | union { | |
655e9780 | 759 | compat_s64 value64; |
2330fb82 HV |
760 | __u8 data[64]; |
761 | } u; | |
762 | __u32 pending; | |
763 | __u32 sequence; | |
764 | struct compat_timespec timestamp; | |
765 | __u32 id; | |
766 | __u32 reserved[8]; | |
767 | }; | |
768 | ||
769 | static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *up) | |
770 | { | |
771 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_event32)) || | |
772 | put_user(kp->type, &up->type) || | |
773 | copy_to_user(&up->u, &kp->u, sizeof(kp->u)) || | |
774 | put_user(kp->pending, &up->pending) || | |
775 | put_user(kp->sequence, &up->sequence) || | |
81993e81 | 776 | compat_put_timespec(&kp->timestamp, &up->timestamp) || |
2330fb82 HV |
777 | put_user(kp->id, &up->id) || |
778 | copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32))) | |
779 | return -EFAULT; | |
780 | return 0; | |
781 | } | |
782 | ||
dd519bb3 | 783 | struct v4l2_edid32 { |
ed45ce2c HV |
784 | __u32 pad; |
785 | __u32 start_block; | |
786 | __u32 blocks; | |
787 | __u32 reserved[5]; | |
788 | compat_caddr_t edid; | |
789 | }; | |
790 | ||
dd519bb3 | 791 | static int get_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up) |
ed45ce2c HV |
792 | { |
793 | u32 tmp; | |
794 | ||
dd519bb3 | 795 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_edid32)) || |
ed45ce2c HV |
796 | get_user(kp->pad, &up->pad) || |
797 | get_user(kp->start_block, &up->start_block) || | |
798 | get_user(kp->blocks, &up->blocks) || | |
799 | get_user(tmp, &up->edid) || | |
800 | copy_from_user(kp->reserved, up->reserved, sizeof(kp->reserved))) | |
801 | return -EFAULT; | |
8ae632b1 | 802 | kp->edid = (__force u8 *)compat_ptr(tmp); |
ed45ce2c HV |
803 | return 0; |
804 | } | |
805 | ||
dd519bb3 | 806 | static int put_v4l2_edid32(struct v4l2_edid *kp, struct v4l2_edid32 __user *up) |
ed45ce2c HV |
807 | { |
808 | u32 tmp = (u32)((unsigned long)kp->edid); | |
809 | ||
dd519bb3 | 810 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_edid32)) || |
ed45ce2c HV |
811 | put_user(kp->pad, &up->pad) || |
812 | put_user(kp->start_block, &up->start_block) || | |
813 | put_user(kp->blocks, &up->blocks) || | |
814 | put_user(tmp, &up->edid) || | |
8ae632b1 | 815 | copy_to_user(up->reserved, kp->reserved, sizeof(up->reserved))) |
ed45ce2c HV |
816 | return -EFAULT; |
817 | return 0; | |
818 | } | |
819 | ||
820 | ||
92f45bad HV |
821 | #define VIDIOC_G_FMT32 _IOWR('V', 4, struct v4l2_format32) |
822 | #define VIDIOC_S_FMT32 _IOWR('V', 5, struct v4l2_format32) | |
823 | #define VIDIOC_QUERYBUF32 _IOWR('V', 9, struct v4l2_buffer32) | |
824 | #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32) | |
825 | #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32) | |
826 | #define VIDIOC_QBUF32 _IOWR('V', 15, struct v4l2_buffer32) | |
827 | #define VIDIOC_DQBUF32 _IOWR('V', 17, struct v4l2_buffer32) | |
828 | #define VIDIOC_ENUMSTD32 _IOWR('V', 25, struct v4l2_standard32) | |
829 | #define VIDIOC_ENUMINPUT32 _IOWR('V', 26, struct v4l2_input32) | |
dd519bb3 HV |
830 | #define VIDIOC_G_EDID32 _IOWR('V', 40, struct v4l2_edid32) |
831 | #define VIDIOC_S_EDID32 _IOWR('V', 41, struct v4l2_edid32) | |
92f45bad HV |
832 | #define VIDIOC_TRY_FMT32 _IOWR('V', 64, struct v4l2_format32) |
833 | #define VIDIOC_G_EXT_CTRLS32 _IOWR('V', 71, struct v4l2_ext_controls32) | |
834 | #define VIDIOC_S_EXT_CTRLS32 _IOWR('V', 72, struct v4l2_ext_controls32) | |
835 | #define VIDIOC_TRY_EXT_CTRLS32 _IOWR('V', 73, struct v4l2_ext_controls32) | |
2330fb82 | 836 | #define VIDIOC_DQEVENT32 _IOR ('V', 89, struct v4l2_event32) |
2150158b GL |
837 | #define VIDIOC_CREATE_BUFS32 _IOWR('V', 92, struct v4l2_create_buffers32) |
838 | #define VIDIOC_PREPARE_BUF32 _IOWR('V', 93, struct v4l2_buffer32) | |
92f45bad HV |
839 | |
840 | #define VIDIOC_OVERLAY32 _IOW ('V', 14, s32) | |
92f45bad HV |
841 | #define VIDIOC_STREAMON32 _IOW ('V', 18, s32) |
842 | #define VIDIOC_STREAMOFF32 _IOW ('V', 19, s32) | |
843 | #define VIDIOC_G_INPUT32 _IOR ('V', 38, s32) | |
844 | #define VIDIOC_S_INPUT32 _IOWR('V', 39, s32) | |
845 | #define VIDIOC_G_OUTPUT32 _IOR ('V', 46, s32) | |
846 | #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32) | |
0d0fbf81 | 847 | |
069b7479 | 848 | static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
0d0fbf81 AB |
849 | { |
850 | union { | |
cf664a64 PDM |
851 | struct v4l2_format v2f; |
852 | struct v4l2_buffer v2b; | |
853 | struct v4l2_framebuffer v2fb; | |
a113bc78 | 854 | struct v4l2_input v2i; |
92f45bad HV |
855 | struct v4l2_standard v2s; |
856 | struct v4l2_ext_controls v2ecs; | |
2330fb82 | 857 | struct v4l2_event v2ev; |
2150158b | 858 | struct v4l2_create_buffers v2crt; |
dd519bb3 | 859 | struct v4l2_edid v2edid; |
0d0fbf81 | 860 | unsigned long vx; |
92f45bad | 861 | int vi; |
0d0fbf81 | 862 | } karg; |
0d0fbf81 | 863 | void __user *up = compat_ptr(arg); |
cf664a64 | 864 | int compatible_arg = 1; |
069b7479 | 865 | long err = 0; |
0d0fbf81 AB |
866 | |
867 | /* First, convert the command. */ | |
d1f81da2 | 868 | switch (cmd) { |
92f45bad HV |
869 | case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break; |
870 | case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break; | |
871 | case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break; | |
872 | case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break; | |
873 | case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break; | |
874 | case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break; | |
875 | case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break; | |
876 | case VIDIOC_ENUMSTD32: cmd = VIDIOC_ENUMSTD; break; | |
877 | case VIDIOC_ENUMINPUT32: cmd = VIDIOC_ENUMINPUT; break; | |
878 | case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break; | |
879 | case VIDIOC_G_EXT_CTRLS32: cmd = VIDIOC_G_EXT_CTRLS; break; | |
880 | case VIDIOC_S_EXT_CTRLS32: cmd = VIDIOC_S_EXT_CTRLS; break; | |
881 | case VIDIOC_TRY_EXT_CTRLS32: cmd = VIDIOC_TRY_EXT_CTRLS; break; | |
2330fb82 | 882 | case VIDIOC_DQEVENT32: cmd = VIDIOC_DQEVENT; break; |
92f45bad | 883 | case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break; |
92f45bad HV |
884 | case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break; |
885 | case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break; | |
886 | case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break; | |
887 | case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break; | |
888 | case VIDIOC_G_OUTPUT32: cmd = VIDIOC_G_OUTPUT; break; | |
889 | case VIDIOC_S_OUTPUT32: cmd = VIDIOC_S_OUTPUT; break; | |
2150158b GL |
890 | case VIDIOC_CREATE_BUFS32: cmd = VIDIOC_CREATE_BUFS; break; |
891 | case VIDIOC_PREPARE_BUF32: cmd = VIDIOC_PREPARE_BUF; break; | |
dd519bb3 HV |
892 | case VIDIOC_G_EDID32: cmd = VIDIOC_G_EDID; break; |
893 | case VIDIOC_S_EDID32: cmd = VIDIOC_S_EDID; break; | |
92f45bad | 894 | } |
0d0fbf81 | 895 | |
d1f81da2 | 896 | switch (cmd) { |
cf664a64 | 897 | case VIDIOC_OVERLAY: |
13d133bc PDM |
898 | case VIDIOC_STREAMON: |
899 | case VIDIOC_STREAMOFF: | |
92f45bad HV |
900 | case VIDIOC_S_INPUT: |
901 | case VIDIOC_S_OUTPUT: | |
902 | err = get_user(karg.vi, (s32 __user *)up); | |
903 | compatible_arg = 0; | |
0d0fbf81 | 904 | break; |
13d133bc | 905 | |
92f45bad HV |
906 | case VIDIOC_G_INPUT: |
907 | case VIDIOC_G_OUTPUT: | |
13d133bc PDM |
908 | compatible_arg = 0; |
909 | break; | |
cf664a64 | 910 | |
dd519bb3 HV |
911 | case VIDIOC_G_EDID: |
912 | case VIDIOC_S_EDID: | |
913 | err = get_v4l2_edid32(&karg.v2edid, up); | |
ed45ce2c HV |
914 | compatible_arg = 0; |
915 | break; | |
916 | ||
cf664a64 PDM |
917 | case VIDIOC_G_FMT: |
918 | case VIDIOC_S_FMT: | |
919 | case VIDIOC_TRY_FMT: | |
920 | err = get_v4l2_format32(&karg.v2f, up); | |
921 | compatible_arg = 0; | |
922 | break; | |
923 | ||
2150158b GL |
924 | case VIDIOC_CREATE_BUFS: |
925 | err = get_v4l2_create32(&karg.v2crt, up); | |
926 | compatible_arg = 0; | |
927 | break; | |
928 | ||
929 | case VIDIOC_PREPARE_BUF: | |
cf664a64 PDM |
930 | case VIDIOC_QUERYBUF: |
931 | case VIDIOC_QBUF: | |
932 | case VIDIOC_DQBUF: | |
933 | err = get_v4l2_buffer32(&karg.v2b, up); | |
934 | compatible_arg = 0; | |
935 | break; | |
936 | ||
92f45bad HV |
937 | case VIDIOC_S_FBUF: |
938 | err = get_v4l2_framebuffer32(&karg.v2fb, up); | |
a113bc78 GM |
939 | compatible_arg = 0; |
940 | break; | |
941 | ||
92f45bad | 942 | case VIDIOC_G_FBUF: |
cf664a64 PDM |
943 | compatible_arg = 0; |
944 | break; | |
945 | ||
92f45bad HV |
946 | case VIDIOC_ENUMSTD: |
947 | err = get_v4l2_standard32(&karg.v2s, up); | |
a113bc78 GM |
948 | compatible_arg = 0; |
949 | break; | |
950 | ||
92f45bad | 951 | case VIDIOC_ENUMINPUT: |
a113bc78 GM |
952 | err = get_v4l2_input32(&karg.v2i, up); |
953 | compatible_arg = 0; | |
954 | break; | |
955 | ||
92f45bad HV |
956 | case VIDIOC_G_EXT_CTRLS: |
957 | case VIDIOC_S_EXT_CTRLS: | |
958 | case VIDIOC_TRY_EXT_CTRLS: | |
959 | err = get_v4l2_ext_controls32(&karg.v2ecs, up); | |
a113bc78 GM |
960 | compatible_arg = 0; |
961 | break; | |
2330fb82 HV |
962 | case VIDIOC_DQEVENT: |
963 | compatible_arg = 0; | |
964 | break; | |
92f45bad | 965 | } |
d1f81da2 | 966 | if (err) |
92f45bad | 967 | return err; |
0d0fbf81 | 968 | |
d1f81da2 | 969 | if (compatible_arg) |
92f45bad | 970 | err = native_ioctl(file, cmd, (unsigned long)up); |
cf664a64 PDM |
971 | else { |
972 | mm_segment_t old_fs = get_fs(); | |
0d0fbf81 | 973 | |
cf664a64 | 974 | set_fs(KERNEL_DS); |
92f45bad | 975 | err = native_ioctl(file, cmd, (unsigned long)&karg); |
cf664a64 PDM |
976 | set_fs(old_fs); |
977 | } | |
92f45bad HV |
978 | |
979 | /* Special case: even after an error we need to put the | |
980 | results back for these ioctls since the error_idx will | |
981 | contain information on which control failed. */ | |
982 | switch (cmd) { | |
983 | case VIDIOC_G_EXT_CTRLS: | |
984 | case VIDIOC_S_EXT_CTRLS: | |
985 | case VIDIOC_TRY_EXT_CTRLS: | |
986 | if (put_v4l2_ext_controls32(&karg.v2ecs, up)) | |
987 | err = -EFAULT; | |
988 | break; | |
989 | } | |
990 | if (err) | |
991 | return err; | |
992 | ||
993 | switch (cmd) { | |
92f45bad HV |
994 | case VIDIOC_S_INPUT: |
995 | case VIDIOC_S_OUTPUT: | |
996 | case VIDIOC_G_INPUT: | |
997 | case VIDIOC_G_OUTPUT: | |
998 | err = put_user(((s32)karg.vi), (s32 __user *)up); | |
999 | break; | |
a113bc78 | 1000 | |
92f45bad HV |
1001 | case VIDIOC_G_FBUF: |
1002 | err = put_v4l2_framebuffer32(&karg.v2fb, up); | |
1003 | break; | |
1004 | ||
2330fb82 HV |
1005 | case VIDIOC_DQEVENT: |
1006 | err = put_v4l2_event32(&karg.v2ev, up); | |
1007 | break; | |
1008 | ||
dd519bb3 HV |
1009 | case VIDIOC_G_EDID: |
1010 | case VIDIOC_S_EDID: | |
1011 | err = put_v4l2_edid32(&karg.v2edid, up); | |
ed45ce2c HV |
1012 | break; |
1013 | ||
92f45bad HV |
1014 | case VIDIOC_G_FMT: |
1015 | case VIDIOC_S_FMT: | |
1016 | case VIDIOC_TRY_FMT: | |
1017 | err = put_v4l2_format32(&karg.v2f, up); | |
1018 | break; | |
1019 | ||
2150158b GL |
1020 | case VIDIOC_CREATE_BUFS: |
1021 | err = put_v4l2_create32(&karg.v2crt, up); | |
1022 | break; | |
1023 | ||
92f45bad HV |
1024 | case VIDIOC_QUERYBUF: |
1025 | case VIDIOC_QBUF: | |
1026 | case VIDIOC_DQBUF: | |
1027 | err = put_v4l2_buffer32(&karg.v2b, up); | |
1028 | break; | |
1029 | ||
1030 | case VIDIOC_ENUMSTD: | |
1031 | err = put_v4l2_standard32(&karg.v2s, up); | |
1032 | break; | |
1033 | ||
1034 | case VIDIOC_ENUMINPUT: | |
1035 | err = put_v4l2_input32(&karg.v2i, up); | |
1036 | break; | |
0d0fbf81 | 1037 | } |
0d0fbf81 AB |
1038 | return err; |
1039 | } | |
1040 | ||
9bb7cde7 | 1041 | long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) |
0d0fbf81 | 1042 | { |
b9d0aa6e | 1043 | struct video_device *vdev = video_devdata(file); |
069b7479 | 1044 | long ret = -ENOIOCTLCMD; |
0d0fbf81 | 1045 | |
c6d7ba8b | 1046 | if (!file->f_op->unlocked_ioctl) |
0d0fbf81 AB |
1047 | return ret; |
1048 | ||
ab58a301 | 1049 | if (_IOC_TYPE(cmd) == 'V' && _IOC_NR(cmd) < BASE_VIDIOC_PRIVATE) |
0d0fbf81 | 1050 | ret = do_video_ioctl(file, cmd, arg); |
ab58a301 HV |
1051 | else if (vdev->fops->compat_ioctl32) |
1052 | ret = vdev->fops->compat_ioctl32(file, cmd, arg); | |
0d0fbf81 | 1053 | |
ab58a301 | 1054 | if (ret == -ENOIOCTLCMD) |
9ec32cc7 HV |
1055 | pr_debug("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n", |
1056 | _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd); | |
e8efb71d | 1057 | return ret; |
0d0fbf81 | 1058 | } |
9bb7cde7 | 1059 | EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32); |