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Commit | Line | Data |
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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 | |
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 | ||
0d0fbf81 AB |
15 | #include <linux/config.h> |
16 | #include <linux/compat.h> | |
17 | #include <linux/videodev.h> | |
cf664a64 | 18 | #include <linux/videodev2.h> |
133b7354 | 19 | #include <linux/module.h> |
e8efb71d | 20 | #include <linux/smp_lock.h> |
a113bc78 | 21 | #include <media/v4l2-common.h> |
0d0fbf81 AB |
22 | |
23 | #ifdef CONFIG_COMPAT | |
a113bc78 GM |
24 | |
25 | ||
0d0fbf81 AB |
26 | struct video_tuner32 { |
27 | compat_int_t tuner; | |
28 | char name[32]; | |
29 | compat_ulong_t rangelow, rangehigh; | |
30 | u32 flags; /* It is really u32 in videodev.h */ | |
31 | u16 mode, signal; | |
32 | }; | |
33 | ||
34 | static int get_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up) | |
35 | { | |
a113bc78 GM |
36 | if(!access_ok(VERIFY_READ, up, sizeof(struct video_tuner32)) || |
37 | get_user(kp->tuner, &up->tuner) || | |
38 | copy_from_user(kp->name, up->name, 32) || | |
39 | get_user(kp->rangelow, &up->rangelow) || | |
40 | get_user(kp->rangehigh, &up->rangehigh) || | |
41 | get_user(kp->flags, &up->flags) || | |
42 | get_user(kp->mode, &up->mode) || | |
43 | get_user(kp->signal, &up->signal)) | |
0d0fbf81 | 44 | return -EFAULT; |
0d0fbf81 AB |
45 | return 0; |
46 | } | |
47 | ||
48 | static int put_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up) | |
49 | { | |
a113bc78 GM |
50 | if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_tuner32)) || |
51 | put_user(kp->tuner, &up->tuner) || | |
52 | copy_to_user(up->name, kp->name, 32) || | |
53 | put_user(kp->rangelow, &up->rangelow) || | |
54 | put_user(kp->rangehigh, &up->rangehigh) || | |
55 | put_user(kp->flags, &up->flags) || | |
56 | put_user(kp->mode, &up->mode) || | |
57 | put_user(kp->signal, &up->signal)) | |
58 | return -EFAULT; | |
0d0fbf81 AB |
59 | return 0; |
60 | } | |
61 | ||
62 | struct video_buffer32 { | |
63 | compat_caddr_t base; | |
64 | compat_int_t height, width, depth, bytesperline; | |
65 | }; | |
66 | ||
67 | static int get_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up) | |
68 | { | |
69 | u32 tmp; | |
70 | ||
a113bc78 GM |
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; | |
0d0fbf81 AB |
78 | |
79 | /* This is actually a physical address stored | |
80 | * as a void pointer. | |
81 | */ | |
82 | kp->base = (void *)(unsigned long) tmp; | |
83 | ||
0d0fbf81 AB |
84 | return 0; |
85 | } | |
86 | ||
87 | static int put_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up) | |
88 | { | |
89 | u32 tmp = (u32)((unsigned long)kp->base); | |
90 | ||
a113bc78 GM |
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; | |
0d0fbf81 AB |
98 | return 0; |
99 | } | |
100 | ||
101 | struct video_clip32 { | |
102 | s32 x, y, width, height; /* Its really s32 in videodev.h */ | |
103 | compat_caddr_t next; | |
104 | }; | |
105 | ||
106 | struct video_window32 { | |
107 | u32 x, y, width, height, chromakey, flags; | |
108 | compat_caddr_t clips; | |
109 | compat_int_t clipcount; | |
110 | }; | |
111 | ||
112 | static int native_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
113 | { | |
114 | int ret = -ENOIOCTLCMD; | |
115 | ||
13d133bc PDM |
116 | if (file->f_op->unlocked_ioctl) |
117 | ret = file->f_op->unlocked_ioctl(file, cmd, arg); | |
118 | else if (file->f_op->ioctl) { | |
0d0fbf81 | 119 | lock_kernel(); |
13d133bc | 120 | ret = file->f_op->ioctl(file->f_dentry->d_inode, file, cmd, arg); |
0d0fbf81 AB |
121 | unlock_kernel(); |
122 | } | |
123 | ||
124 | return ret; | |
125 | } | |
126 | ||
127 | ||
128 | /* You get back everything except the clips... */ | |
129 | static int put_video_window32(struct video_window *kp, struct video_window32 __user *up) | |
130 | { | |
a113bc78 GM |
131 | if(!access_ok(VERIFY_WRITE, up, sizeof(struct video_window32)) || |
132 | put_user(kp->x, &up->x) || | |
133 | put_user(kp->y, &up->y) || | |
134 | put_user(kp->width, &up->width) || | |
135 | put_user(kp->height, &up->height) || | |
136 | put_user(kp->chromakey, &up->chromakey) || | |
137 | put_user(kp->flags, &up->flags) || | |
138 | put_user(kp->clipcount, &up->clipcount)) | |
139 | return -EFAULT; | |
0d0fbf81 AB |
140 | return 0; |
141 | } | |
142 | ||
cf664a64 PDM |
143 | struct v4l2_clip32 |
144 | { | |
145 | struct v4l2_rect c; | |
146 | compat_caddr_t next; | |
147 | }; | |
148 | ||
149 | struct v4l2_window32 | |
150 | { | |
151 | struct v4l2_rect w; | |
152 | enum v4l2_field field; | |
153 | __u32 chromakey; | |
154 | compat_caddr_t clips; /* actually struct v4l2_clip32 * */ | |
155 | __u32 clipcount; | |
156 | compat_caddr_t bitmap; | |
157 | }; | |
158 | ||
159 | static int get_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) | |
160 | { | |
a113bc78 GM |
161 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_window32)) || |
162 | copy_from_user(&kp->w, &up->w, sizeof(up->w)) || | |
163 | get_user(kp->field, &up->field) || | |
164 | get_user(kp->chromakey, &up->chromakey) || | |
165 | get_user(kp->clipcount, &up->clipcount)) | |
166 | return -EFAULT; | |
cf664a64 PDM |
167 | if (kp->clipcount > 2048) |
168 | return -EINVAL; | |
169 | if (kp->clipcount) { | |
170 | struct v4l2_clip32 *uclips = compat_ptr(up->clips); | |
171 | struct v4l2_clip *kclips; | |
172 | int n = kp->clipcount; | |
173 | ||
174 | kclips = compat_alloc_user_space(n * sizeof(struct v4l2_clip)); | |
175 | kp->clips = kclips; | |
176 | while (--n >= 0) { | |
a113bc78 GM |
177 | if (!access_ok(VERIFY_READ, &uclips->c, sizeof(uclips->c)) || |
178 | copy_from_user(&kclips->c, &uclips->c, sizeof(uclips->c))) | |
179 | return -EFAULT; | |
cf664a64 PDM |
180 | kclips->next = n ? kclips + 1 : 0; |
181 | uclips += 1; | |
182 | kclips += 1; | |
183 | } | |
184 | } else | |
185 | kp->clips = 0; | |
186 | return 0; | |
187 | } | |
188 | ||
189 | static int put_v4l2_window32(struct v4l2_window *kp, struct v4l2_window32 __user *up) | |
190 | { | |
a113bc78 GM |
191 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_window32)) || |
192 | copy_to_user(&up->w, &kp->w, sizeof(up->w)) || | |
193 | put_user(kp->field, &up->field) || | |
194 | put_user(kp->chromakey, &up->chromakey) || | |
195 | put_user(kp->clipcount, &up->clipcount)) | |
196 | return -EFAULT; | |
cf664a64 PDM |
197 | return 0; |
198 | } | |
199 | ||
200 | static inline int get_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) | |
201 | { | |
a113bc78 GM |
202 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_pix_format)) || |
203 | copy_from_user(kp, up, sizeof(struct v4l2_pix_format))) | |
204 | return -EFAULT; | |
205 | return 0; | |
cf664a64 PDM |
206 | } |
207 | ||
208 | static inline int put_v4l2_pix_format(struct v4l2_pix_format *kp, struct v4l2_pix_format __user *up) | |
209 | { | |
a113bc78 GM |
210 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_pix_format)) || |
211 | copy_to_user(up, kp, sizeof(struct v4l2_pix_format))) | |
212 | return -EFAULT; | |
213 | return 0; | |
cf664a64 PDM |
214 | } |
215 | ||
216 | static inline int get_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) | |
217 | { | |
a113bc78 GM |
218 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_vbi_format)) || |
219 | copy_from_user(kp, up, sizeof(struct v4l2_vbi_format))) | |
220 | return -EFAULT; | |
221 | return 0; | |
cf664a64 PDM |
222 | } |
223 | ||
224 | static inline int put_v4l2_vbi_format(struct v4l2_vbi_format *kp, struct v4l2_vbi_format __user *up) | |
225 | { | |
a113bc78 GM |
226 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_vbi_format)) || |
227 | copy_to_user(up, kp, sizeof(struct v4l2_vbi_format))) | |
228 | return -EFAULT; | |
229 | return 0; | |
cf664a64 PDM |
230 | } |
231 | ||
232 | struct v4l2_format32 | |
233 | { | |
234 | enum v4l2_buf_type type; | |
235 | union | |
236 | { | |
237 | struct v4l2_pix_format pix; // V4L2_BUF_TYPE_VIDEO_CAPTURE | |
238 | struct v4l2_window32 win; // V4L2_BUF_TYPE_VIDEO_OVERLAY | |
239 | struct v4l2_vbi_format vbi; // V4L2_BUF_TYPE_VBI_CAPTURE | |
240 | __u8 raw_data[200]; // user-defined | |
241 | } fmt; | |
242 | }; | |
243 | ||
244 | static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) | |
245 | { | |
a113bc78 GM |
246 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)) || |
247 | get_user(kp->type, &up->type)) | |
248 | return -EFAULT; | |
cf664a64 PDM |
249 | switch (kp->type) { |
250 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
251 | return get_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); | |
252 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
253 | return get_v4l2_window32(&kp->fmt.win, &up->fmt.win); | |
254 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
255 | return get_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); | |
256 | default: | |
257 | printk("compat_ioctl : unexpected VIDIOC_FMT type %d\n", | |
258 | kp->type); | |
259 | return -ENXIO; | |
260 | } | |
261 | } | |
262 | ||
263 | static int put_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) | |
264 | { | |
a113bc78 GM |
265 | if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_format32)) || |
266 | put_user(kp->type, &up->type)) | |
cf664a64 PDM |
267 | return -EFAULT; |
268 | switch (kp->type) { | |
269 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
270 | return put_v4l2_pix_format(&kp->fmt.pix, &up->fmt.pix); | |
271 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
272 | return put_v4l2_window32(&kp->fmt.win, &up->fmt.win); | |
273 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
274 | return put_v4l2_vbi_format(&kp->fmt.vbi, &up->fmt.vbi); | |
275 | default: | |
276 | return -ENXIO; | |
277 | } | |
278 | } | |
279 | ||
a113bc78 GM |
280 | static inline int get_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up) |
281 | { | |
282 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard)) || | |
283 | copy_from_user(kp, up, sizeof(struct v4l2_standard))) | |
284 | return -EFAULT; | |
285 | return 0; | |
286 | ||
287 | } | |
288 | ||
289 | static inline int put_v4l2_standard(struct v4l2_standard *kp, struct v4l2_standard __user *up) | |
290 | { | |
291 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard)) || | |
292 | copy_to_user(up, kp, sizeof(struct v4l2_standard))) | |
293 | return -EFAULT; | |
294 | return 0; | |
295 | } | |
296 | ||
cf664a64 PDM |
297 | struct v4l2_standard32 |
298 | { | |
299 | __u32 index; | |
300 | __u32 id[2]; /* __u64 would get the alignment wrong */ | |
301 | __u8 name[24]; | |
302 | struct v4l2_fract frameperiod; /* Frames, not fields */ | |
303 | __u32 framelines; | |
304 | __u32 reserved[4]; | |
305 | }; | |
306 | ||
307 | static int get_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) | |
308 | { | |
309 | /* other fields are not set by the user, nor used by the driver */ | |
a113bc78 GM |
310 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_standard32)) || |
311 | get_user(kp->index, &up->index)) | |
312 | return -EFAULT; | |
313 | return 0; | |
cf664a64 PDM |
314 | } |
315 | ||
316 | static int put_v4l2_standard32(struct v4l2_standard *kp, struct v4l2_standard32 __user *up) | |
317 | { | |
a113bc78 GM |
318 | if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_standard32)) || |
319 | put_user(kp->index, &up->index) || | |
320 | copy_to_user(up->id, &kp->id, sizeof(__u64)) || | |
321 | copy_to_user(up->name, kp->name, 24) || | |
322 | copy_to_user(&up->frameperiod, &kp->frameperiod, sizeof(kp->frameperiod)) || | |
323 | put_user(kp->framelines, &up->framelines) || | |
324 | copy_to_user(up->reserved, kp->reserved, 4 * sizeof(__u32))) | |
325 | return -EFAULT; | |
326 | return 0; | |
327 | } | |
328 | ||
329 | static inline int get_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up) | |
330 | { | |
331 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_tuner)) || | |
332 | copy_from_user(kp, up, sizeof(struct v4l2_tuner))) | |
333 | return -EFAULT; | |
334 | return 0; | |
335 | ||
336 | } | |
337 | ||
338 | static inline int put_v4l2_tuner(struct v4l2_tuner *kp, struct v4l2_tuner __user *up) | |
339 | { | |
340 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_tuner)) || | |
341 | copy_to_user(up, kp, sizeof(struct v4l2_tuner))) | |
342 | return -EFAULT; | |
cf664a64 PDM |
343 | return 0; |
344 | } | |
345 | ||
346 | struct v4l2_buffer32 | |
347 | { | |
348 | __u32 index; | |
349 | enum v4l2_buf_type type; | |
350 | __u32 bytesused; | |
351 | __u32 flags; | |
352 | enum v4l2_field field; | |
353 | struct compat_timeval timestamp; | |
354 | struct v4l2_timecode timecode; | |
355 | __u32 sequence; | |
356 | ||
357 | /* memory location */ | |
358 | enum v4l2_memory memory; | |
359 | union { | |
360 | __u32 offset; | |
361 | compat_long_t userptr; | |
362 | } m; | |
363 | __u32 length; | |
364 | __u32 input; | |
365 | __u32 reserved; | |
366 | }; | |
367 | ||
368 | static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) | |
369 | { | |
370 | ||
a113bc78 GM |
371 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_buffer32)) || |
372 | get_user(kp->index, &up->index) || | |
373 | get_user(kp->type, &up->type) || | |
374 | get_user(kp->flags, &up->flags) || | |
375 | get_user(kp->memory, &up->memory) || | |
376 | get_user(kp->input, &up->input)) | |
377 | return -EFAULT; | |
cf664a64 PDM |
378 | switch(kp->memory) { |
379 | case V4L2_MEMORY_MMAP: | |
380 | break; | |
381 | case V4L2_MEMORY_USERPTR: | |
382 | { | |
383 | unsigned long tmp = (unsigned long)compat_ptr(up->m.userptr); | |
384 | ||
a113bc78 GM |
385 | if(get_user(kp->length, &up->length) || |
386 | get_user(kp->m.userptr, &tmp)) | |
387 | return -EFAULT; | |
cf664a64 PDM |
388 | } |
389 | break; | |
390 | case V4L2_MEMORY_OVERLAY: | |
a113bc78 GM |
391 | if(get_user(kp->m.offset, &up->m.offset)) |
392 | return -EFAULT; | |
cf664a64 PDM |
393 | break; |
394 | } | |
395 | return 0; | |
396 | } | |
397 | ||
398 | static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user *up) | |
399 | { | |
a113bc78 GM |
400 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_buffer32)) || |
401 | put_user(kp->index, &up->index) || | |
402 | put_user(kp->type, &up->type) || | |
403 | put_user(kp->flags, &up->flags) || | |
404 | put_user(kp->memory, &up->memory) || | |
405 | put_user(kp->input, &up->input)) | |
406 | return -EFAULT; | |
cf664a64 PDM |
407 | switch(kp->memory) { |
408 | case V4L2_MEMORY_MMAP: | |
a113bc78 GM |
409 | if (put_user(kp->length, &up->length) || |
410 | put_user(kp->m.offset, &up->m.offset)) | |
411 | return -EFAULT; | |
cf664a64 PDM |
412 | break; |
413 | case V4L2_MEMORY_USERPTR: | |
a113bc78 GM |
414 | if (put_user(kp->length, &up->length) || |
415 | put_user(kp->m.userptr, &up->m.userptr)) | |
416 | return -EFAULT; | |
cf664a64 PDM |
417 | break; |
418 | case V4L2_MEMORY_OVERLAY: | |
a113bc78 GM |
419 | if (put_user(kp->m.offset, &up->m.offset)) |
420 | return -EFAULT; | |
cf664a64 PDM |
421 | break; |
422 | } | |
a113bc78 GM |
423 | if (put_user(kp->bytesused, &up->bytesused) || |
424 | put_user(kp->field, &up->field) || | |
425 | put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) || | |
426 | put_user(kp->timestamp.tv_usec, &up->timestamp.tv_usec) || | |
427 | copy_to_user(&up->timecode, &kp->timecode, sizeof(struct v4l2_timecode)) || | |
428 | put_user(kp->sequence, &up->sequence) || | |
429 | put_user(kp->reserved, &up->reserved)) | |
430 | return -EFAULT; | |
cf664a64 PDM |
431 | return 0; |
432 | } | |
433 | ||
434 | struct v4l2_framebuffer32 | |
435 | { | |
436 | __u32 capability; | |
437 | __u32 flags; | |
438 | compat_caddr_t base; | |
439 | struct v4l2_pix_format fmt; | |
440 | }; | |
441 | ||
13d133bc PDM |
442 | static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
443 | { | |
444 | u32 tmp; | |
445 | ||
a113bc78 GM |
446 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_framebuffer32)) || |
447 | get_user(tmp, &up->base) || | |
448 | get_user(kp->capability, &up->capability) || | |
449 | get_user(kp->flags, &up->flags)) | |
450 | return -EFAULT; | |
13d133bc | 451 | kp->base = compat_ptr(tmp); |
13d133bc PDM |
452 | get_v4l2_pix_format(&kp->fmt, &up->fmt); |
453 | return 0; | |
454 | } | |
455 | ||
cf664a64 PDM |
456 | static int put_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_framebuffer32 __user *up) |
457 | { | |
458 | u32 tmp = (u32)((unsigned long)kp->base); | |
459 | ||
a113bc78 GM |
460 | if(!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_framebuffer32)) || |
461 | put_user(tmp, &up->base) || | |
462 | put_user(kp->capability, &up->capability) || | |
463 | put_user(kp->flags, &up->flags)) | |
464 | return -EFAULT; | |
cf664a64 PDM |
465 | put_v4l2_pix_format(&kp->fmt, &up->fmt); |
466 | return 0; | |
467 | } | |
468 | ||
a113bc78 | 469 | static inline int get_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up) |
cf664a64 | 470 | { |
a113bc78 GM |
471 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_input) - 4) || |
472 | copy_from_user(kp, up, sizeof(struct v4l2_input) - 4)) | |
473 | return -EFAULT; | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static inline int put_v4l2_input32(struct v4l2_input *kp, struct v4l2_input __user *up) | |
478 | { | |
479 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_input) - 4) || | |
480 | copy_to_user(up, kp, sizeof(struct v4l2_input) - 4)) | |
481 | return -EFAULT; | |
482 | return 0; | |
483 | } | |
484 | ||
485 | static inline int get_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up) | |
486 | { | |
487 | if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_input)) || | |
488 | copy_from_user(kp, up, sizeof(struct v4l2_input))) | |
489 | return -EFAULT; | |
490 | return 0; | |
491 | } | |
492 | ||
493 | static inline int put_v4l2_input(struct v4l2_input *kp, struct v4l2_input __user *up) | |
494 | { | |
495 | if (!access_ok(VERIFY_WRITE, up, sizeof(struct v4l2_input)) || | |
496 | copy_to_user(up, kp, sizeof(struct v4l2_input))) | |
497 | return -EFAULT; | |
498 | return 0; | |
499 | } | |
cf664a64 | 500 | |
0d0fbf81 AB |
501 | #define VIDIOCGTUNER32 _IOWR('v',4, struct video_tuner32) |
502 | #define VIDIOCSTUNER32 _IOW('v',5, struct video_tuner32) | |
503 | #define VIDIOCGWIN32 _IOR('v',9, struct video_window32) | |
504 | #define VIDIOCSWIN32 _IOW('v',10, struct video_window32) | |
505 | #define VIDIOCGFBUF32 _IOR('v',11, struct video_buffer32) | |
506 | #define VIDIOCSFBUF32 _IOW('v',12, struct video_buffer32) | |
507 | #define VIDIOCGFREQ32 _IOR('v',14, u32) | |
508 | #define VIDIOCSFREQ32 _IOW('v',15, u32) | |
509 | ||
a113bc78 GM |
510 | /* VIDIOC_ENUMINPUT32 is VIDIOC_ENUMINPUT minus 4 bytes of padding alignement */ |
511 | #define VIDIOC_ENUMINPUT32 VIDIOC_ENUMINPUT - _IOC(0, 0, 0, 4) | |
cf664a64 PDM |
512 | #define VIDIOC_G_FMT32 _IOWR ('V', 4, struct v4l2_format32) |
513 | #define VIDIOC_S_FMT32 _IOWR ('V', 5, struct v4l2_format32) | |
514 | #define VIDIOC_QUERYBUF32 _IOWR ('V', 9, struct v4l2_buffer32) | |
515 | #define VIDIOC_G_FBUF32 _IOR ('V', 10, struct v4l2_framebuffer32) | |
13d133bc | 516 | #define VIDIOC_S_FBUF32 _IOW ('V', 11, struct v4l2_framebuffer32) |
cf664a64 PDM |
517 | /* VIDIOC_OVERLAY is now _IOW, but was _IOWR */ |
518 | #define VIDIOC_OVERLAY32 _IOWR ('V', 14, compat_int_t) | |
519 | #define VIDIOC_QBUF32 _IOWR ('V', 15, struct v4l2_buffer32) | |
520 | #define VIDIOC_DQBUF32 _IOWR ('V', 17, struct v4l2_buffer32) | |
521 | #define VIDIOC_STREAMON32 _IOW ('V', 18, compat_int_t) | |
522 | #define VIDIOC_STREAMOFF32 _IOW ('V', 19, compat_int_t) | |
523 | #define VIDIOC_ENUMSTD32 _IOWR ('V', 25, struct v4l2_standard32) | |
cf664a64 PDM |
524 | /* VIDIOC_S_CTRL is now _IOWR, but was _IOW */ |
525 | #define VIDIOC_S_CTRL32 _IOW ('V', 28, struct v4l2_control) | |
526 | #define VIDIOC_G_INPUT32 _IOR ('V', 38, compat_int_t) | |
527 | #define VIDIOC_S_INPUT32 _IOWR ('V', 39, compat_int_t) | |
528 | #define VIDIOC_TRY_FMT32 _IOWR ('V', 64, struct v4l2_format32) | |
529 | ||
0d0fbf81 AB |
530 | enum { |
531 | MaxClips = (~0U-sizeof(struct video_window))/sizeof(struct video_clip) | |
532 | }; | |
533 | ||
534 | static int do_set_window(struct file *file, unsigned int cmd, unsigned long arg) | |
535 | { | |
536 | struct video_window32 __user *up = compat_ptr(arg); | |
537 | struct video_window __user *vw; | |
538 | struct video_clip __user *p; | |
539 | int nclips; | |
540 | u32 n; | |
541 | ||
a113bc78 GM |
542 | if (!access_ok(VERIFY_READ, up, sizeof(struct video_window32))) |
543 | return -EFAULT; | |
544 | ||
0d0fbf81 AB |
545 | if (get_user(nclips, &up->clipcount)) |
546 | return -EFAULT; | |
547 | ||
548 | /* Peculiar interface... */ | |
549 | if (nclips < 0) | |
550 | nclips = VIDEO_CLIPMAP_SIZE; | |
551 | ||
552 | if (nclips > MaxClips) | |
553 | return -ENOMEM; | |
554 | ||
555 | vw = compat_alloc_user_space(sizeof(struct video_window) + | |
556 | nclips * sizeof(struct video_clip)); | |
557 | ||
558 | p = nclips ? (struct video_clip __user *)(vw + 1) : NULL; | |
559 | ||
560 | if (get_user(n, &up->x) || put_user(n, &vw->x) || | |
561 | get_user(n, &up->y) || put_user(n, &vw->y) || | |
562 | get_user(n, &up->width) || put_user(n, &vw->width) || | |
563 | get_user(n, &up->height) || put_user(n, &vw->height) || | |
564 | get_user(n, &up->chromakey) || put_user(n, &vw->chromakey) || | |
565 | get_user(n, &up->flags) || put_user(n, &vw->flags) || | |
566 | get_user(n, &up->clipcount) || put_user(n, &vw->clipcount) || | |
567 | get_user(n, &up->clips) || put_user(p, &vw->clips)) | |
568 | return -EFAULT; | |
569 | ||
570 | if (nclips) { | |
571 | struct video_clip32 __user *u = compat_ptr(n); | |
572 | int i; | |
573 | if (!u) | |
574 | return -EINVAL; | |
575 | for (i = 0; i < nclips; i++, u++, p++) { | |
576 | s32 v; | |
a113bc78 GM |
577 | if (!access_ok(VERIFY_READ, u, sizeof(struct video_clip32)) || |
578 | !access_ok(VERIFY_WRITE, p, sizeof(struct video_clip32)) || | |
579 | get_user(v, &u->x) || | |
0d0fbf81 AB |
580 | put_user(v, &p->x) || |
581 | get_user(v, &u->y) || | |
582 | put_user(v, &p->y) || | |
583 | get_user(v, &u->width) || | |
584 | put_user(v, &p->width) || | |
585 | get_user(v, &u->height) || | |
586 | put_user(v, &p->height) || | |
587 | put_user(NULL, &p->next)) | |
588 | return -EFAULT; | |
589 | } | |
590 | } | |
591 | ||
009494ef | 592 | return native_ioctl(file, VIDIOCSWIN, (unsigned long)vw); |
0d0fbf81 AB |
593 | } |
594 | ||
595 | static int do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
596 | { | |
597 | union { | |
598 | struct video_tuner vt; | |
599 | struct video_buffer vb; | |
600 | struct video_window vw; | |
cf664a64 PDM |
601 | struct v4l2_format v2f; |
602 | struct v4l2_buffer v2b; | |
603 | struct v4l2_framebuffer v2fb; | |
604 | struct v4l2_standard v2s; | |
a113bc78 GM |
605 | struct v4l2_input v2i; |
606 | struct v4l2_tuner v2t; | |
0d0fbf81 AB |
607 | unsigned long vx; |
608 | } karg; | |
0d0fbf81 | 609 | void __user *up = compat_ptr(arg); |
cf664a64 | 610 | int compatible_arg = 1; |
0d0fbf81 | 611 | int err = 0; |
a113bc78 | 612 | int realcmd = cmd; |
0d0fbf81 AB |
613 | |
614 | /* First, convert the command. */ | |
615 | switch(cmd) { | |
616 | case VIDIOCGTUNER32: cmd = VIDIOCGTUNER; break; | |
617 | case VIDIOCSTUNER32: cmd = VIDIOCSTUNER; break; | |
618 | case VIDIOCGWIN32: cmd = VIDIOCGWIN; break; | |
619 | case VIDIOCGFBUF32: cmd = VIDIOCGFBUF; break; | |
620 | case VIDIOCSFBUF32: cmd = VIDIOCSFBUF; break; | |
621 | case VIDIOCGFREQ32: cmd = VIDIOCGFREQ; break; | |
622 | case VIDIOCSFREQ32: cmd = VIDIOCSFREQ; break; | |
cf664a64 PDM |
623 | case VIDIOC_G_FMT32: cmd = VIDIOC_G_FMT; break; |
624 | case VIDIOC_S_FMT32: cmd = VIDIOC_S_FMT; break; | |
625 | case VIDIOC_QUERYBUF32: cmd = VIDIOC_QUERYBUF; break; | |
626 | case VIDIOC_QBUF32: cmd = VIDIOC_QBUF; break; | |
627 | case VIDIOC_DQBUF32: cmd = VIDIOC_DQBUF; break; | |
628 | case VIDIOC_STREAMON32: cmd = VIDIOC_STREAMON; break; | |
629 | case VIDIOC_STREAMOFF32: cmd = VIDIOC_STREAMOFF; break; | |
630 | case VIDIOC_G_FBUF32: cmd = VIDIOC_G_FBUF; break; | |
13d133bc | 631 | case VIDIOC_S_FBUF32: cmd = VIDIOC_S_FBUF; break; |
cf664a64 | 632 | case VIDIOC_OVERLAY32: cmd = VIDIOC_OVERLAY; break; |
a113bc78 GM |
633 | case VIDIOC_ENUMSTD32: realcmd = VIDIOC_ENUMSTD; break; |
634 | case VIDIOC_ENUMINPUT32: realcmd = VIDIOC_ENUMINPUT; break; | |
cf664a64 PDM |
635 | case VIDIOC_S_CTRL32: cmd = VIDIOC_S_CTRL; break; |
636 | case VIDIOC_G_INPUT32: cmd = VIDIOC_G_INPUT; break; | |
637 | case VIDIOC_S_INPUT32: cmd = VIDIOC_S_INPUT; break; | |
638 | case VIDIOC_TRY_FMT32: cmd = VIDIOC_TRY_FMT; break; | |
0d0fbf81 AB |
639 | }; |
640 | ||
641 | switch(cmd) { | |
642 | case VIDIOCSTUNER: | |
643 | case VIDIOCGTUNER: | |
644 | err = get_video_tuner32(&karg.vt, up); | |
cf664a64 PDM |
645 | compatible_arg = 0; |
646 | ||
0d0fbf81 AB |
647 | break; |
648 | ||
649 | case VIDIOCSFBUF: | |
650 | err = get_video_buffer32(&karg.vb, up); | |
cf664a64 | 651 | compatible_arg = 0; |
0d0fbf81 AB |
652 | break; |
653 | ||
654 | case VIDIOCSFREQ: | |
cf664a64 PDM |
655 | case VIDIOC_S_INPUT: |
656 | case VIDIOC_OVERLAY: | |
13d133bc PDM |
657 | case VIDIOC_STREAMON: |
658 | case VIDIOC_STREAMOFF: | |
0d0fbf81 | 659 | err = get_user(karg.vx, (u32 __user *)up); |
cf664a64 | 660 | compatible_arg = 0; |
0d0fbf81 | 661 | break; |
13d133bc PDM |
662 | |
663 | case VIDIOC_S_FBUF: | |
664 | err = get_v4l2_framebuffer32(&karg.v2fb, up); | |
665 | compatible_arg = 0; | |
666 | break; | |
cf664a64 PDM |
667 | |
668 | case VIDIOC_G_FMT: | |
669 | case VIDIOC_S_FMT: | |
670 | case VIDIOC_TRY_FMT: | |
671 | err = get_v4l2_format32(&karg.v2f, up); | |
672 | compatible_arg = 0; | |
673 | break; | |
674 | ||
675 | case VIDIOC_QUERYBUF: | |
676 | case VIDIOC_QBUF: | |
677 | case VIDIOC_DQBUF: | |
678 | err = get_v4l2_buffer32(&karg.v2b, up); | |
679 | compatible_arg = 0; | |
680 | break; | |
681 | ||
682 | case VIDIOC_ENUMSTD: | |
a113bc78 GM |
683 | err = get_v4l2_standard(&karg.v2s, up); |
684 | compatible_arg = 0; | |
685 | break; | |
686 | ||
687 | case VIDIOC_ENUMSTD32: | |
cf664a64 PDM |
688 | err = get_v4l2_standard32(&karg.v2s, up); |
689 | compatible_arg = 0; | |
690 | break; | |
691 | ||
a113bc78 GM |
692 | case VIDIOC_ENUMINPUT: |
693 | err = get_v4l2_input(&karg.v2i, up); | |
694 | compatible_arg = 0; | |
695 | break; | |
696 | ||
697 | case VIDIOC_ENUMINPUT32: | |
698 | err = get_v4l2_input32(&karg.v2i, up); | |
699 | compatible_arg = 0; | |
700 | break; | |
701 | ||
702 | case VIDIOC_G_TUNER: | |
703 | case VIDIOC_S_TUNER: | |
704 | err = get_v4l2_tuner(&karg.v2t, up); | |
705 | compatible_arg = 0; | |
706 | break; | |
707 | ||
cf664a64 PDM |
708 | case VIDIOCGWIN: |
709 | case VIDIOCGFBUF: | |
710 | case VIDIOCGFREQ: | |
711 | case VIDIOC_G_FBUF: | |
712 | case VIDIOC_G_INPUT: | |
713 | compatible_arg = 0; | |
13d133bc | 714 | }; |
cf664a64 | 715 | |
0d0fbf81 AB |
716 | if(err) |
717 | goto out; | |
718 | ||
cf664a64 | 719 | if(compatible_arg) |
a113bc78 | 720 | err = native_ioctl(file, realcmd, (unsigned long)up); |
cf664a64 PDM |
721 | else { |
722 | mm_segment_t old_fs = get_fs(); | |
0d0fbf81 | 723 | |
cf664a64 | 724 | set_fs(KERNEL_DS); |
a113bc78 | 725 | err = native_ioctl(file, realcmd, (unsigned long)&karg); |
cf664a64 PDM |
726 | set_fs(old_fs); |
727 | } | |
0d0fbf81 AB |
728 | if(err == 0) { |
729 | switch(cmd) { | |
730 | case VIDIOCGTUNER: | |
731 | err = put_video_tuner32(&karg.vt, up); | |
732 | break; | |
733 | ||
734 | case VIDIOCGWIN: | |
735 | err = put_video_window32(&karg.vw, up); | |
736 | break; | |
737 | ||
738 | case VIDIOCGFBUF: | |
739 | err = put_video_buffer32(&karg.vb, up); | |
740 | break; | |
741 | ||
cf664a64 PDM |
742 | case VIDIOC_G_FBUF: |
743 | err = put_v4l2_framebuffer32(&karg.v2fb, up); | |
744 | break; | |
745 | ||
746 | case VIDIOC_G_FMT: | |
747 | case VIDIOC_S_FMT: | |
748 | case VIDIOC_TRY_FMT: | |
749 | err = put_v4l2_format32(&karg.v2f, up); | |
750 | break; | |
751 | ||
752 | case VIDIOC_QUERYBUF: | |
753 | case VIDIOC_QBUF: | |
754 | case VIDIOC_DQBUF: | |
755 | err = put_v4l2_buffer32(&karg.v2b, up); | |
756 | break; | |
757 | ||
758 | case VIDIOC_ENUMSTD: | |
a113bc78 GM |
759 | err = put_v4l2_standard(&karg.v2s, up); |
760 | break; | |
761 | ||
762 | case VIDIOC_ENUMSTD32: | |
cf664a64 PDM |
763 | err = put_v4l2_standard32(&karg.v2s, up); |
764 | break; | |
765 | ||
a113bc78 GM |
766 | case VIDIOC_G_TUNER: |
767 | case VIDIOC_S_TUNER: | |
768 | err = put_v4l2_tuner(&karg.v2t, up); | |
769 | break; | |
770 | ||
771 | case VIDIOC_ENUMINPUT: | |
772 | err = put_v4l2_input(&karg.v2i, up); | |
773 | break; | |
774 | ||
775 | case VIDIOC_ENUMINPUT32: | |
776 | err = put_v4l2_input32(&karg.v2i, up); | |
777 | break; | |
778 | ||
0d0fbf81 | 779 | case VIDIOCGFREQ: |
cf664a64 | 780 | case VIDIOC_G_INPUT: |
0d0fbf81 AB |
781 | err = put_user(((u32)karg.vx), (u32 __user *)up); |
782 | break; | |
783 | }; | |
784 | } | |
785 | out: | |
786 | return err; | |
787 | } | |
788 | ||
789 | long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg) | |
790 | { | |
791 | int ret = -ENOIOCTLCMD; | |
792 | ||
13d133bc | 793 | if (!file->f_op->ioctl) |
0d0fbf81 AB |
794 | return ret; |
795 | ||
796 | switch (cmd) { | |
797 | case VIDIOCSWIN32: | |
798 | ret = do_set_window(file, cmd, arg); | |
799 | break; | |
800 | case VIDIOCGTUNER32: | |
801 | case VIDIOCSTUNER32: | |
802 | case VIDIOCGWIN32: | |
803 | case VIDIOCGFBUF32: | |
804 | case VIDIOCSFBUF32: | |
805 | case VIDIOCGFREQ32: | |
133b7354 | 806 | case VIDIOCSFREQ32: |
13d133bc PDM |
807 | case VIDIOC_QUERYCAP: |
808 | case VIDIOC_ENUM_FMT: | |
809 | case VIDIOC_G_FMT32: | |
810 | case VIDIOC_S_FMT32: | |
811 | case VIDIOC_REQBUFS: | |
812 | case VIDIOC_QUERYBUF32: | |
813 | case VIDIOC_G_FBUF32: | |
814 | case VIDIOC_S_FBUF32: | |
815 | case VIDIOC_OVERLAY32: | |
816 | case VIDIOC_QBUF32: | |
817 | case VIDIOC_DQBUF32: | |
818 | case VIDIOC_STREAMON32: | |
819 | case VIDIOC_STREAMOFF32: | |
820 | case VIDIOC_G_PARM: | |
821 | case VIDIOC_G_STD: | |
822 | case VIDIOC_S_STD: | |
a113bc78 GM |
823 | case VIDIOC_G_TUNER: |
824 | case VIDIOC_S_TUNER: | |
825 | case VIDIOC_ENUMSTD: | |
13d133bc | 826 | case VIDIOC_ENUMSTD32: |
a113bc78 | 827 | case VIDIOC_ENUMINPUT: |
13d133bc PDM |
828 | case VIDIOC_ENUMINPUT32: |
829 | case VIDIOC_G_CTRL: | |
830 | case VIDIOC_S_CTRL32: | |
831 | case VIDIOC_QUERYCTRL: | |
832 | case VIDIOC_G_INPUT32: | |
833 | case VIDIOC_S_INPUT32: | |
834 | case VIDIOC_TRY_FMT32: | |
0d0fbf81 AB |
835 | ret = do_video_ioctl(file, cmd, arg); |
836 | break; | |
837 | ||
838 | /* Little v, the video4linux ioctls (conflict?) */ | |
839 | case VIDIOCGCAP: | |
840 | case VIDIOCGCHAN: | |
841 | case VIDIOCSCHAN: | |
842 | case VIDIOCGPICT: | |
843 | case VIDIOCSPICT: | |
844 | case VIDIOCCAPTURE: | |
845 | case VIDIOCKEY: | |
846 | case VIDIOCGAUDIO: | |
847 | case VIDIOCSAUDIO: | |
848 | case VIDIOCSYNC: | |
849 | case VIDIOCMCAPTURE: | |
850 | case VIDIOCGMBUF: | |
851 | case VIDIOCGUNIT: | |
852 | case VIDIOCGCAPTURE: | |
853 | case VIDIOCSCAPTURE: | |
854 | ||
855 | /* BTTV specific... */ | |
856 | case _IOW('v', BASE_VIDIOCPRIVATE+0, char [256]): | |
857 | case _IOR('v', BASE_VIDIOCPRIVATE+1, char [256]): | |
858 | case _IOR('v' , BASE_VIDIOCPRIVATE+2, unsigned int): | |
859 | case _IOW('v' , BASE_VIDIOCPRIVATE+3, char [16]): /* struct bttv_pll_info */ | |
860 | case _IOR('v' , BASE_VIDIOCPRIVATE+4, int): | |
861 | case _IOR('v' , BASE_VIDIOCPRIVATE+5, int): | |
862 | case _IOR('v' , BASE_VIDIOCPRIVATE+6, int): | |
863 | case _IOR('v' , BASE_VIDIOCPRIVATE+7, int): | |
864 | ret = native_ioctl(file, cmd, (unsigned long)compat_ptr(arg)); | |
865 | break; | |
a113bc78 GM |
866 | default: |
867 | v4l_print_ioctl("compat_ioctl32", cmd); | |