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authorHans Verkuil <hverkuil@xs4all.nl>2008-10-21 23:04:45 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-12-29 14:53:25 -0500
commitd1f81da2361804d62f7ade2703eda68dda6cdb48 (patch)
treec0c238f22d3fae1c07edfaa15ae26724bd31aee4 /drivers/media/video/v4l2-compat-ioctl32.c
parentda40b59305f373d386435ece69244c570e3954b6 (diff)
V4L/DVB (9484): v4l: rename compat_ioctl32.c to v4l2-compat-ioctl32.c
All core v4l sources should start with 'v4l2-' This file was the last one for which this was not the case. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-compat-ioctl32.c')
-rw-r--r--drivers/media/video/v4l2-compat-ioctl32.c927
1 files changed, 927 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
new file mode 100644
index 000000000000..3b310ab3e3de
--- /dev/null
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -0,0 +1,927 @@
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
8 * Copyright (C) 2003 Pavel Machek (pavel@suse.cz)
9 * Copyright (C) 2005 Philippe De Muyter (phdm@macqel.be)
10 *
11 * These routines maintain argument size conversion between 32bit and 64bit
12 * ioctls.
13 */
14
15#include <linux/compat.h>
16#include <linux/videodev.h>
17#include <linux/videodev2.h>
18#include <linux/module.h>
19#include <linux/smp_lock.h>
20#include <media/v4l2-ioctl.h>
21
22#ifdef CONFIG_COMPAT
23
24#ifdef CONFIG_VIDEO_V4L1_COMPAT
25struct video_tuner32 {
26 compat_int_t tuner;
27 char name[32];
28 compat_ulong_t rangelow, rangehigh;
29 u32 flags; /* It is really u32 in videodev.h */
30 u16 mode, signal;
31};
32
33static int get_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
34{
35 if (!access_ok(VERIFY_READ, up, sizeof(struct video_tuner32)) ||
36 get_user(kp->tuner, &up->tuner) ||
37 copy_from_user(kp->name, up->name, 32) ||
38 get_user(kp->rangelow, &up->rangelow) ||
39 get_user(kp->rangehigh, &up->rangehigh) ||
40 get_user(kp->flags, &up->flags) ||
41 get_user(kp->mode, &up->mode) ||
42 get_user(kp->signal, &up->signal))
43 return -EFAULT;
44 return 0;
45}
46
47static int put_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
48{
49 if (!access_ok(VERIFY_WRITE, up, sizeof(struct video_tuner32)) ||
50 put_user(kp->tuner, &up->tuner) ||
51 copy_to_user(up->name, kp->name, 32) ||
52 put_user(kp->rangelow, &up->rangelow) ||
53 put_user(kp->rangehigh, &up->rangehigh) ||
54 put_user(kp->flags, &up->flags) ||
55 put_user(kp->mode, &up->mode) ||
56 put_user(kp->signal, &up->signal))
57 return -EFAULT;
58 return 0;
59}
60
61
62struct video_buffer32 {
63 compat_caddr_t base;
64 compat_int_t height, width, depth, bytesperline;
65};
66
67static int get_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
68{
69 u32 tmp;
70
71 if (!access_ok(VERIFY_READ, up, sizeof(struct video_buffer32)) ||
72 get_user(tmp, &up->base) ||
73 get_user(kp->height, &up->height) ||
74 get_user(kp->width, &up->width) ||
75 get_user(kp->depth, &up->depth) ||
76 get_user(kp->bytesperline, &up->bytesperline))
77 return -EFAULT;
78
79 /* This is actually a physical address stored
80 * as a void pointer.
81 */
82 kp->base = (void *)(unsigned long) tmp;
83
84 return 0;
85}
86
87static int put_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
88{
89 u32 tmp = (u32)((unsigned long)kp->base);
90
91 if (!access_ok(VERIFY_WRITE, up, sizeof(struct video_buffer32)) ||
92 put_user(tmp, &up->base) ||
93 put_user(kp->height, &up->height) ||
94 put_user(kp->width, &up->width) ||
95 put_user(kp->depth, &up->depth) ||
96 put_user(kp->bytesperline, &up->bytesperline))
97 return -EFAULT;
98 return 0;
99}
100
101struct video_clip32 {
102 s32 x, y, width, height; /* Its really s32 in videodev.h */
103 compat_caddr_t next;
104};
105
106struct video_window32 {
107 u32 x, y, width, height, chromakey, flags;
108 compat_caddr_t clips;
109 compat_int_t clipcount;
110};
111#endif
112
113static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
114{
115 int ret = -ENOIOCTLCMD;
116
117 if (file->f_op->unlocked_ioctl)
118 ret = file->f_op->unlocked_ioctl(file, cmd, arg);
119 else if (file->f_op->ioctl) {
120 lock_kernel();
121 ret = file->f_op->ioctl(file->f_path.dentry->d_inode, file, cmd, arg);
122 unlock_kernel();
123 }
124
125 return ret;
126}
127
128
129#ifdef CONFIG_VIDEO_V4L1_COMPAT
130/* You get back everything except the clips... */
131static int put_video_window32(struct video_window *kp, struct video_window32 __user *up)
132{
133 if (!access_ok(VERIFY_WRITE, up, sizeof(struct video_window32)) ||
134 put_user(kp->x, &up->x) ||
135 put_user(kp->y, &up->y) ||
136 put_user(kp->width, &up->width) ||
137 put_user(kp->height, &up->height) ||
138 put_user(kp->chromakey, &up->chromakey) ||
139 put_user(kp->flags, &up->flags) ||
140 put_user(kp->clipcount, &up->clipcount))
141 return -EFAULT;
142 return 0;
143}
144#endif
145
146struct v4l2_clip32 {
147 struct v4l2_rect c;
148 compat_caddr_t next;
149};
150
151struct v4l2_window32 {
152 struct v4l2_rect w;
153 enum v4l2_field field;
154 __u32 chromakey;
155 compat_caddr_t clips; /* actually struct v4l2_clip32 * */
156 __u32 clipcount;
157 compat_caddr_t bitmap;
158};
159
160static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
161{
162 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_window32)) ||
163 copy_from_user(&kp->w, &up->w, sizeof(up->w)) ||
164 get_user(kp->field, &up->field) ||
165 get_user(kp->chromakey, &up->chromakey) ||
166 get_user(kp->clipcount, &up->clipcount))
167 return -EFAULT;
168 if (kp->clipcount > 2048)
169 return -EINVAL;
170 if (kp->clipcount) {
171 struct v4l2_clip32 __user *uclips;
172 struct v4l2_clip __user *kclips;
173 int n = kp->clipcount;
174 compat_caddr_t p;
175
176 if (get_user(p, &up->clips))
177 return -EFAULT;
178 uclips = compat_ptr(p);
179 kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip));
180 kp->clips = kclips;
181 while (--n >= 0) {
182 if (copy_in_user(&kclips->c, &uclips->c, sizeof(uclips->c)))
183 return -EFAULT;
184 if (put_user(n ? kclips + 1 : NULL, &kclips->next))
185 return -EFAULT;
186 uclips += 1;
187 kclips += 1;
188 }
189 } else
190 kp->clips = NULL;
191 return 0;
192}
193
194static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up)
195{
196 if (copy_to_user(&up->w, &kp->w, sizeof(up->w)) ||
197 put_user(kp->field, &up->field) ||
198 put_user(kp->chromakey, &up->chromakey) ||
199 put_user(kp->clipcount, &up->clipcount))
200 return -EFAULT;
201 return 0;
202}
203
204static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
205{
206 if (copy_from_user(kp, up, sizeof(struct v4l2_pix_format)))
207 return -EFAULT;
208 return 0;
209}
210
211static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up)
212{
213 if (copy_to_user(up, kp, sizeof(struct v4l2_pix_format)))
214 return -EFAULT;
215 return 0;
216}
217
218static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
219{
220 if (copy_from_user(kp, up, sizeof(struct v4l2_vbi_format)))
221 return -EFAULT;
222 return 0;
223}
224
225static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up)
226{
227 if (copy_to_user(up, kp, sizeof(struct v4l2_vbi_format)))
228 return -EFAULT;
229 return 0;
230}
231
232struct v4l2_format32 {
233 enum v4l2_buf_type type;
234 union {
235 struct v4l2_pix_format pix; /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
236 struct v4l2_window32 win; /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
237 struct v4l2_vbi_format vbi; /* V4L2_BUF_TYPE_VBI_CAPTURE */
238 __u8 raw_data[200]; /* user-defined */
239 } fmt;
240};
241
242static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
243{
244 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)) ||
245 get_user(kp->type, &up->type))
246 return -EFAULT;
247 switch (kp->type) {
248 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
249 return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
250 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
251 return get_v4l2_window32(&kp->fmt.win, &up->fmt.win);
252 case V4L2_BUF_TYPE_VBI_CAPTURE:
253 return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
254 default:
255 printk(KERN_INFO "compat_ioctl: unexpected VIDIOC_FMT type %d\n",
256 kp->type);
257 return -ENXIO;
258 }
259}
260
261static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up)
262{
263 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)) ||
264 put_user(kp->type, &up->type))
265 return -EFAULT;
266 switch (kp->type) {
267 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
268 return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix);
269 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
270 return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
271 case V4L2_BUF_TYPE_VBI_CAPTURE:
272 return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi);
273 default:
274 return -ENXIO;
275 }
276}
277
278static inline int get_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up)
279{
280 if (copy_from_user(kp, up, sizeof(struct v4l2_standard)))
281 return -EFAULT;
282 return 0;
283
284}
285
286static inline int put_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up)
287{
288 if (copy_to_user(up, kp, sizeof(struct v4l2_standard)))
289 return -EFAULT;
290 return 0;
291}
292
293struct v4l2_standard32 {
294 __u32 index;
295 __u32 id[2]; /* __u64 would get the alignment wrong */
296 __u8 name[24];
297 struct v4l2_fract frameperiod; /* Frames, not fields */
298 __u32 framelines;
299 __u32 reserved[4];
300};
301
302static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
303{
304 /* other fields are not set by the user, nor used by the driver */
305 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) ||
306 get_user(kp->index, &up->index))
307 return -EFAULT;
308 return 0;
309}
310
311static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up)
312{
313 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) ||
314 put_user(kp->index, &up->index) ||
315 copy_to_user(up->id, &kp->id, sizeof(__u64)) ||
316 copy_to_user(up->name, kp->name, 24) ||
317 copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) ||
318 put_user(kp->framelines, &up->framelines) ||
319 copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32)))
320 return -EFAULT;
321 return 0;
322}
323
324static inline int get_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up)
325{
326 if (copy_from_user(kp, up, sizeof(struct v4l2_tuner)))
327 return -EFAULT;
328 return 0;
329
330}
331
332static inline int put_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up)
333{
334 if (copy_to_user(up, kp, sizeof(struct v4l2_tuner)))
335 return -EFAULT;
336 return 0;
337}
338
339struct v4l2_buffer32 {
340 __u32 index;
341 enum v4l2_buf_type type;
342 __u32 bytesused;
343 __u32 flags;
344 enum v4l2_field field;
345 struct compat_timeval timestamp;
346 struct v4l2_timecode timecode;
347 __u32 sequence;
348
349 /* memory location */
350 enum v4l2_memory memory;
351 union {
352 __u32 offset;
353 compat_long_t userptr;
354 } m;
355 __u32 length;
356 __u32 input;
357 __u32 reserved;
358};
359
360static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
361{
362
363 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) ||
364 get_user(kp->index, &up->index) ||
365 get_user(kp->type, &up->type) ||
366 get_user(kp->flags, &up->flags) ||
367 get_user(kp->memory, &up->memory) ||
368 get_user(kp->input, &up->input))
369 return -EFAULT;
370 switch (kp->memory) {
371 case V4L2_MEMORY_MMAP:
372 break;
373 case V4L2_MEMORY_USERPTR:
374 {
375 compat_long_t tmp;
376
377 if (get_user(kp->length, &up->length) ||
378 get_user(tmp, &up->m.userptr))
379 return -EFAULT;
380
381 kp->m.userptr = (unsigned long)compat_ptr(tmp);
382 }
383 break;
384 case V4L2_MEMORY_OVERLAY:
385 if (get_user(kp->m.offset, &up->m.offset))
386 return -EFAULT;
387 break;
388 }
389 return 0;
390}
391
392static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up)
393{
394 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) ||
395 put_user(kp->index, &up->index) ||
396 put_user(kp->type, &up->type) ||
397 put_user(kp->flags, &up->flags) ||
398 put_user(kp->memory, &up->memory) ||
399 put_user(kp->input, &up->input))
400 return -EFAULT;
401 switch (kp->memory) {
402 case V4L2_MEMORY_MMAP:
403 if (put_user(kp->length, &up->length) ||
404 put_user(kp->m.offset, &up->m.offset))
405 return -EFAULT;
406 break;
407 case V4L2_MEMORY_USERPTR:
408 if (put_user(kp->length, &up->length) ||
409 put_user(kp->m.userptr, &up->m.userptr))
410 return -EFAULT;
411 break;
412 case V4L2_MEMORY_OVERLAY:
413 if (put_user(kp->m.offset, &up->m.offset))
414 return -EFAULT;
415 break;
416 }
417 if (put_user(kp->bytesused, &up->bytesused) ||
418 put_user(kp->field, &up->field) ||
419 put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
420 put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) ||
421 copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) ||
422 put_user(kp->sequence, &up->sequence) ||
423 put_user(kp->reserved, &up->reserved))
424 return -EFAULT;
425 return 0;
426}
427
428struct v4l2_framebuffer32 {
429 __u32 capability;
430 __u32 flags;
431 compat_caddr_t base;
432 struct v4l2_pix_format fmt;
433};
434
435static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
436{
437 u32 tmp;
438
439 if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) ||
440 get_user(tmp, &up->base) ||
441 get_user(kp->capability, &up->capability) ||
442 get_user(kp->flags, &up->flags))
443 return -EFAULT;
444 kp->base = compat_ptr(tmp);
445 get_v4l2_pix_format(&kp->fmt, &up->fmt);
446 return 0;
447}
448
449static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up)
450{
451 u32 tmp = (u32)((unsigned long)kp->base);
452
453 if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) ||
454 put_user(tmp, &up->base) ||
455 put_user(kp->capability, &up->capability) ||
456 put_user(kp->flags, &up->flags))
457 return -EFAULT;
458 put_v4l2_pix_format(&kp->fmt, &up->fmt);
459 return 0;
460}
461
462static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up)
463{
464 if (copy_from_user(kp, up, sizeof(struct v4l2_input) - 4))
465 return -EFAULT;
466 return 0;
467}
468
469static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up)
470{
471 if (copy_to_user(up, kp, sizeof(struct v4l2_input) - 4))
472 return -EFAULT;
473 return 0;
474}
475
476static inline int get_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up)
477{
478 if (copy_from_user(kp, up, sizeof(struct v4l2_input)))
479 return -EFAULT;
480 return 0;
481}
482
483static inline int put_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up)
484{
485 if (copy_to_user(up, kp, sizeof(struct v4l2_input)))
486 return -EFAULT;
487 return 0;
488}
489
490#ifdef CONFIG_VIDEO_V4L1_COMPAT
491struct video_code32 {
492 char loadwhat[16]; /* name or tag of file being passed */
493 compat_int_t datasize;
494 unsigned char *data;
495};
496
497static inline int microcode32(struct video_code *kp, struct video_code32 __user *up)
498{
499 if (!access_ok(VERIFY_READ, up, sizeof(struct video_code32)) ||
500 copy_from_user(kp->loadwhat, up->loadwhat, sizeof(up->loadwhat)) ||
501 get_user(kp->datasize, &up->datasize) ||
502 copy_from_user(kp->data, up->data, up->datasize))
503 return -EFAULT;
504 return 0;
505}
506
507#define VIDIOCGTUNER32 _IOWR('v', 4, struct video_tuner32)
508#define VIDIOCSTUNER32 _IOW('v', 5, struct video_tuner32)
509#define VIDIOCGWIN32 _IOR('v', 9, struct video_window32)
510#define VIDIOCSWIN32 _IOW('v', 10, struct video_window32)
511#define VIDIOCGFBUF32 _IOR('v', 11, struct video_buffer32)
512#define VIDIOCSFBUF32 _IOW('v', 12, struct video_buffer32)
513#define VIDIOCGFREQ32 _IOR('v', 14, u32)
514#define VIDIOCSFREQ32 _IOW('v', 15, u32)
515#define VIDIOCSMICROCODE32 _IOW('v', 27, struct video_code32)
516
517#endif
518
519/* VIDIOC_ENUMINPUT32 is VIDIOC_ENUMINPUT minus 4 bytes of padding alignement */
520#define VIDIOC_ENUMINPUT32 (VIDIOC_ENUMINPUT - _IOC(0, 0, 0, 4))
521#define VIDIOC_G_FMT32 _IOWR ('V', 4, struct v4l2_format32)
522#define VIDIOC_S_FMT32 _IOWR ('V', 5, struct v4l2_format32)
523#define VIDIOC_QUERYBUF32 _IOWR ('V', 9, struct v4l2_buffer32)
524#define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32)
525#define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32)
526/* VIDIOC_OVERLAY is now _IOW, but was _IOWR */
527#define VIDIOC_OVERLAY32 _IOWR ('V', 14, compat_int_t)
528#define VIDIOC_QBUF32 _IOWR ('V', 15, struct v4l2_buffer32)
529#define VIDIOC_DQBUF32 _IOWR ('V', 17, struct v4l2_buffer32)
530#define VIDIOC_STREAMON32 _IOW ('V', 18, compat_int_t)
531#define VIDIOC_STREAMOFF32 _IOW ('V', 19, compat_int_t)
532#define VIDIOC_ENUMSTD32 _IOWR ('V', 25, struct v4l2_standard32)
533/* VIDIOC_S_CTRL is now _IOWR, but was _IOW */
534#define VIDIOC_S_CTRL32 _IOW ('V', 28, struct v4l2_control)
535#define VIDIOC_G_INPUT32 _IOR ('V', 38, compat_int_t)
536#define VIDIOC_S_INPUT32 _IOWR ('V', 39, compat_int_t)
537#define VIDIOC_TRY_FMT32 _IOWR ('V', 64, struct v4l2_format32)
538
539#ifdef CONFIG_VIDEO_V4L1_COMPAT
540enum {
541 MaxClips = (~0U-sizeof(struct video_window))/sizeof(struct video_clip)
542};
543
544static int do_set_window(struct file *file, unsigned int cmd, unsigned long arg)
545{
546 struct video_window32 __user *up = compat_ptr(arg);
547 struct video_window __user *vw;
548 struct video_clip __user *p;
549 int nclips;
550 u32 n;
551
552 if (!access_ok(VERIFY_READ, up, sizeof(struct video_window32)))
553 return -EFAULT;
554
555 if (get_user(nclips, &up->clipcount))
556 return -EFAULT;
557
558 /* Peculiar interface... */
559 if (nclips < 0)
560 nclips = VIDEO_CLIPMAP_SIZE;
561
562 if (nclips > MaxClips)
563 return -ENOMEM;
564
565 vw = compat_alloc_user_space(sizeof(struct video_window) +
566 nclips * sizeof(struct video_clip));
567
568 p = nclips ? (struct video_clip __user *)(vw + 1) : NULL;
569
570 if (get_user(n, &up->x) || put_user(n, &vw->x) ||
571 get_user(n, &up->y) || put_user(n, &vw->y) ||
572 get_user(n, &up->width) || put_user(n, &vw->width) ||
573 get_user(n, &up->height) || put_user(n, &vw->height) ||
574 get_user(n, &up->chromakey) || put_user(n, &vw->chromakey) ||
575 get_user(n, &up->flags) || put_user(n, &vw->flags) ||
576 get_user(n, &up->clipcount) || put_user(n, &vw->clipcount) ||
577 get_user(n, &up->clips) || put_user(p, &vw->clips))
578 return -EFAULT;
579
580 if (nclips) {
581 struct video_clip32 __user *u = compat_ptr(n);
582 int i;
583 if (!u)
584 return -EINVAL;
585 for (i = 0; i < nclips; i++, u++, p++) {
586 s32 v;
587 if (!access_ok(VERIFY_READ, u, sizeof(struct video_clip32)) ||
588 !access_ok(VERIFY_WRITE, p, sizeof(struct video_clip32)) ||
589 get_user(v, &u->x) ||
590 put_user(v, &p->x) ||
591 get_user(v, &u->y) ||
592 put_user(v, &p->y) ||
593 get_user(v, &u->width) ||
594 put_user(v, &p->width) ||
595 get_user(v, &u->height) ||
596 put_user(v, &p->height) ||
597 put_user(NULL, &p->next))
598 return -EFAULT;
599 }
600 }
601
602 return native_ioctl(file, VIDIOCSWIN, (unsigned long)vw);
603}
604#endif
605
606static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
607{
608 union {
609#ifdef CONFIG_VIDEO_V4L1_COMPAT
610 struct video_tuner vt;
611 struct video_buffer vb;
612 struct video_window vw;
613 struct video_code vc;
614 struct video_audio va;
615#endif
616 struct v4l2_format v2f;
617 struct v4l2_buffer v2b;
618 struct v4l2_framebuffer v2fb;
619 struct v4l2_standard v2s;
620 struct v4l2_input v2i;
621 struct v4l2_tuner v2t;
622 unsigned long vx;
623 } karg;
624 void __user *up = compat_ptr(arg);
625 int compatible_arg = 1;
626 int err = 0;
627 int realcmd = cmd;
628
629 /* First, convert the command. */
630 switch (cmd) {
631#ifdef CONFIG_VIDEO_V4L1_COMPAT
632 case VIDIOCGTUNER32: realcmd = cmd = VIDIOCGTUNER; break;
633 case VIDIOCSTUNER32: realcmd = cmd = VIDIOCSTUNER; break;
634 case VIDIOCGWIN32: realcmd = cmd = VIDIOCGWIN; break;
635 case VIDIOCGFBUF32: realcmd = cmd = VIDIOCGFBUF; break;
636 case VIDIOCSFBUF32: realcmd = cmd = VIDIOCSFBUF; break;
637 case VIDIOCGFREQ32: realcmd = cmd = VIDIOCGFREQ; break;
638 case VIDIOCSFREQ32: realcmd = cmd = VIDIOCSFREQ; break;
639 case VIDIOCSMICROCODE32: realcmd = cmd = VIDIOCSMICROCODE; break;
640#endif
641 case VIDIOC_G_FMT32: realcmd = cmd = VIDIOC_G_FMT; break;
642 case VIDIOC_S_FMT32: realcmd = cmd = VIDIOC_S_FMT; break;
643 case VIDIOC_QUERYBUF32: realcmd = cmd = VIDIOC_QUERYBUF; break;
644 case VIDIOC_QBUF32: realcmd = cmd = VIDIOC_QBUF; break;
645 case VIDIOC_DQBUF32: realcmd = cmd = VIDIOC_DQBUF; break;
646 case VIDIOC_STREAMON32: realcmd = cmd = VIDIOC_STREAMON; break;
647 case VIDIOC_STREAMOFF32: realcmd = cmd = VIDIOC_STREAMOFF; break;
648 case VIDIOC_G_FBUF32: realcmd = cmd = VIDIOC_G_FBUF; break;
649 case VIDIOC_S_FBUF32: realcmd = cmd = VIDIOC_S_FBUF; break;
650 case VIDIOC_OVERLAY32: realcmd = cmd = VIDIOC_OVERLAY; break;
651 case VIDIOC_ENUMSTD32: realcmd = VIDIOC_ENUMSTD; break;
652 case VIDIOC_ENUMINPUT32: realcmd = VIDIOC_ENUMINPUT; break;
653 case VIDIOC_S_CTRL32: realcmd = cmd = VIDIOC_S_CTRL; break;
654 case VIDIOC_G_INPUT32: realcmd = cmd = VIDIOC_G_INPUT; break;
655 case VIDIOC_S_INPUT32: realcmd = cmd = VIDIOC_S_INPUT; break;
656 case VIDIOC_TRY_FMT32: realcmd = cmd = VIDIOC_TRY_FMT; break;
657 };
658
659 switch (cmd) {
660#ifdef CONFIG_VIDEO_V4L1_COMPAT
661 case VIDIOCSTUNER:
662 case VIDIOCGTUNER:
663 err = get_video_tuner32(&karg.vt, up);
664 compatible_arg = 0;
665
666 break;
667
668 case VIDIOCSFBUF:
669 err = get_video_buffer32(&karg.vb, up);
670 compatible_arg = 0;
671 break;
672
673
674 case VIDIOCSFREQ:
675#endif
676 case VIDIOC_S_INPUT:
677 case VIDIOC_OVERLAY:
678 case VIDIOC_STREAMON:
679 case VIDIOC_STREAMOFF:
680 err = get_user(karg.vx, (u32 __user *)up);
681 compatible_arg = 1;
682 break;
683
684 case VIDIOC_S_FBUF:
685 err = get_v4l2_framebuffer32(&karg.v2fb, up);
686 compatible_arg = 0;
687 break;
688
689 case VIDIOC_G_FMT:
690 case VIDIOC_S_FMT:
691 case VIDIOC_TRY_FMT:
692 err = get_v4l2_format32(&karg.v2f, up);
693 compatible_arg = 0;
694 break;
695
696 case VIDIOC_QUERYBUF:
697 case VIDIOC_QBUF:
698 case VIDIOC_DQBUF:
699 err = get_v4l2_buffer32(&karg.v2b, up);
700 compatible_arg = 0;
701 break;
702
703 case VIDIOC_ENUMSTD:
704 err = get_v4l2_standard(&karg.v2s, up);
705 compatible_arg = 0;
706 break;
707
708 case VIDIOC_ENUMSTD32:
709 err = get_v4l2_standard32(&karg.v2s, up);
710 compatible_arg = 0;
711 break;
712
713 case VIDIOC_ENUMINPUT:
714 err = get_v4l2_input(&karg.v2i, up);
715 compatible_arg = 0;
716 break;
717
718 case VIDIOC_ENUMINPUT32:
719 err = get_v4l2_input32(&karg.v2i, up);
720 compatible_arg = 0;
721 break;
722
723 case VIDIOC_G_TUNER:
724 case VIDIOC_S_TUNER:
725 err = get_v4l2_tuner(&karg.v2t, up);
726 compatible_arg = 0;
727 break;
728
729#ifdef CONFIG_VIDEO_V4L1_COMPAT
730 case VIDIOCGWIN:
731 case VIDIOCGFBUF:
732 case VIDIOCGFREQ:
733#endif
734 case VIDIOC_G_FBUF:
735 case VIDIOC_G_INPUT:
736 compatible_arg = 0;
737 break;
738#ifdef CONFIG_VIDEO_V4L1_COMPAT
739 case VIDIOCSMICROCODE:
740 err = microcode32(&karg.vc, up);
741 compatible_arg = 0;
742 break;
743#endif
744 };
745 if (err)
746 goto out;
747
748 if (compatible_arg)
749 err = native_ioctl(file, realcmd, (unsigned long)up);
750 else {
751 mm_segment_t old_fs = get_fs();
752
753 set_fs(KERNEL_DS);
754 err = native_ioctl(file, realcmd, (unsigned long)&karg);
755 set_fs(old_fs);
756 }
757 if (err == 0) {
758 switch (cmd) {
759#ifdef CONFIG_VIDEO_V4L1_COMPAT
760 case VIDIOCGTUNER:
761 err = put_video_tuner32(&karg.vt, up);
762 break;
763
764 case VIDIOCGWIN:
765 err = put_video_window32(&karg.vw, up);
766 break;
767
768 case VIDIOCGFBUF:
769 err = put_video_buffer32(&karg.vb, up);
770 break;
771
772#endif
773 case VIDIOC_G_FBUF:
774 err = put_v4l2_framebuffer32(&karg.v2fb, up);
775 break;
776
777 case VIDIOC_G_FMT:
778 case VIDIOC_S_FMT:
779 case VIDIOC_TRY_FMT:
780 err = put_v4l2_format32(&karg.v2f, up);
781 break;
782
783 case VIDIOC_QUERYBUF:
784 case VIDIOC_QBUF:
785 case VIDIOC_DQBUF:
786 err = put_v4l2_buffer32(&karg.v2b, up);
787 break;
788
789 case VIDIOC_ENUMSTD:
790 err = put_v4l2_standard(&karg.v2s, up);
791 break;
792
793 case VIDIOC_ENUMSTD32:
794 err = put_v4l2_standard32(&karg.v2s, up);
795 break;
796
797 case VIDIOC_G_TUNER:
798 case VIDIOC_S_TUNER:
799 err = put_v4l2_tuner(&karg.v2t, up);
800 break;
801
802 case VIDIOC_ENUMINPUT:
803 err = put_v4l2_input(&karg.v2i, up);
804 break;
805
806 case VIDIOC_ENUMINPUT32:
807 err = put_v4l2_input32(&karg.v2i, up);
808 break;
809
810#ifdef CONFIG_VIDEO_V4L1_COMPAT
811 case VIDIOCGFREQ:
812#endif
813 case VIDIOC_G_INPUT:
814 err = put_user(((u32)karg.vx), (u32 __user *)up);
815 break;
816 };
817 }
818out:
819 return err;
820}
821
822long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
823{
824 int ret = -ENOIOCTLCMD;
825
826 if (!file->f_op->ioctl && !file->f_op->unlocked_ioctl)
827 return ret;
828
829 switch (cmd) {
830#ifdef CONFIG_VIDEO_V4L1_COMPAT
831 case VIDIOCSWIN32:
832 ret = do_set_window(file, cmd, arg);
833 break;
834 case VIDIOCGTUNER32:
835 case VIDIOCSTUNER32:
836 case VIDIOCGWIN32:
837 case VIDIOCGFBUF32:
838 case VIDIOCSFBUF32:
839 case VIDIOCGFREQ32:
840 case VIDIOCSFREQ32:
841 case VIDIOCGAUDIO:
842 case VIDIOCSAUDIO:
843 case VIDIOCGVBIFMT:
844 case VIDIOCSVBIFMT:
845#endif
846 case VIDIOC_QUERYCAP:
847 case VIDIOC_ENUM_FMT:
848 case VIDIOC_G_FMT32:
849 case VIDIOC_CROPCAP:
850 case VIDIOC_S_CROP:
851 case VIDIOC_S_FMT32:
852 case VIDIOC_REQBUFS:
853 case VIDIOC_QUERYBUF32:
854 case VIDIOC_G_FBUF32:
855 case VIDIOC_S_FBUF32:
856 case VIDIOC_OVERLAY32:
857 case VIDIOC_QBUF32:
858 case VIDIOC_DQBUF32:
859 case VIDIOC_STREAMON32:
860 case VIDIOC_STREAMOFF32:
861 case VIDIOC_G_PARM:
862 case VIDIOC_S_PARM:
863 case VIDIOC_G_STD:
864 case VIDIOC_S_STD:
865 case VIDIOC_G_TUNER:
866 case VIDIOC_S_TUNER:
867 case VIDIOC_ENUMSTD:
868 case VIDIOC_ENUMSTD32:
869 case VIDIOC_ENUMINPUT:
870 case VIDIOC_ENUMINPUT32:
871 case VIDIOC_G_CTRL:
872 case VIDIOC_S_CTRL:
873 case VIDIOC_S_CTRL32:
874 case VIDIOC_S_FREQUENCY:
875 case VIDIOC_G_FREQUENCY:
876 case VIDIOC_QUERYCTRL:
877 case VIDIOC_G_INPUT32:
878 case VIDIOC_S_INPUT32:
879 case VIDIOC_TRY_FMT32:
880 case VIDIOC_S_HW_FREQ_SEEK:
881 case VIDIOC_ENUM_FRAMESIZES:
882 case VIDIOC_ENUM_FRAMEINTERVALS:
883 ret = do_video_ioctl(file, cmd, arg);
884 break;
885
886#ifdef CONFIG_VIDEO_V4L1_COMPAT
887 /* Little v, the video4linux ioctls (conflict?) */
888 case VIDIOCGCAP:
889 case VIDIOCGCHAN:
890 case VIDIOCSCHAN:
891 case VIDIOCGPICT:
892 case VIDIOCSPICT:
893 case VIDIOCCAPTURE:
894 case VIDIOCKEY:
895 case VIDIOCSYNC:
896 case VIDIOCMCAPTURE:
897 case VIDIOCGMBUF:
898 case VIDIOCGUNIT:
899 case VIDIOCGCAPTURE:
900 case VIDIOCSCAPTURE:
901
902 /* BTTV specific... */
903 case _IOW('v', BASE_VIDIOCPRIVATE+0, char [256]):
904 case _IOR('v', BASE_VIDIOCPRIVATE+1, char [256]):
905 case _IOR('v' , BASE_VIDIOCPRIVATE+2, unsigned int):
906 case _IOW('v' , BASE_VIDIOCPRIVATE+3, char [16]): /* struct bttv_pll_info */
907 case _IOR('v' , BASE_VIDIOCPRIVATE+4, int):
908 case _IOR('v' , BASE_VIDIOCPRIVATE+5, int):
909 case _IOR('v' , BASE_VIDIOCPRIVATE+6, int):
910 case _IOR('v' , BASE_VIDIOCPRIVATE+7, int):
911 ret = native_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
912 break;
913#endif
914 default:
915 v4l_print_ioctl("compat_ioctl32", cmd);
916 }
917 return ret;
918}
919#else
920long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
921{
922 return -ENOIOCTLCMD;
923}
924#endif
925EXPORT_SYMBOL_GPL(v4l_compat_ioctl32);
926
927MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 22:31:52 -0500