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media: v4l2: move compat handling for v4l2_buffer 

The ioctl commands based on v4l2_buffer have two sets of compat calls,
one for native time32 structures, and one for compat structures on
64-bit architectures.

Change the compat version to use the same approach as the other simpler
one, for both versions of the structure.

In an earlier version of the patch, I unified the v4l2_buffer_time32
and v4l2_buffer32_time32 compatibility handling into a single
implementation, but that relied on having it all in one file, rather
than having the in_compat_syscall() version in v4l2-compat-ioctl32.c.

[hverkuil: fix various trivial checkpatch issues]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Arnd Bergmann 2020-10-30 17:55:25 +01:00 committed by Mauro Carvalho Chehab
parent 6c9361e739
commit 00af58fd9a
1 changed files with 274 additions and 458 deletions
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732
drivers/media/v4l2-core/v4l2-compat-ioctl32.c
View File

@ -521,480 +521,250 @@ struct v4l2_buffer32_time32 {
__s32 request_fd;
};
static int get_v4l2_plane32(struct v4l2_plane __user *p64,
static int get_v4l2_plane32(struct v4l2_plane *p64,
struct v4l2_plane32 __user *p32,
enum v4l2_memory memory)
{
compat_ulong_t p;
struct v4l2_plane32 plane32;
typeof(p64->m) m = {};
if (copy_in_user(p64, p32, 2 * sizeof(__u32)) ||
copy_in_user(&p64->data_offset, &p32->data_offset,
sizeof(p64->data_offset)))
if (copy_from_user(&plane32, p32, sizeof(plane32)))
return -EFAULT;
switch (memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
if (copy_in_user(&p64->m.mem_offset, &p32->m.mem_offset,
sizeof(p32->m.mem_offset)))
return -EFAULT;
m.mem_offset = plane32.m.mem_offset;
break;
case V4L2_MEMORY_USERPTR:
if (get_user(p, &p32->m.userptr) ||
put_user((unsigned long)compat_ptr(p), &p64->m.userptr))
return -EFAULT;
m.userptr = (unsigned long)compat_ptr(plane32.m.userptr);
break;
case V4L2_MEMORY_DMABUF:
if (copy_in_user(&p64->m.fd, &p32->m.fd, sizeof(p32->m.fd)))
return -EFAULT;
m.fd = plane32.m.fd;
break;
}
memset(p64, 0, sizeof(*p64));
*p64 = (struct v4l2_plane) {
.bytesused = plane32.bytesused,
.length = plane32.length,
.m = m,
.data_offset = plane32.data_offset,
};
return 0;
}
static int put_v4l2_plane32(struct v4l2_plane __user *p64,
static int put_v4l2_plane32(struct v4l2_plane *p64,
struct v4l2_plane32 __user *p32,
enum v4l2_memory memory)
{
unsigned long p;
struct v4l2_plane32 plane32;
if (copy_in_user(p32, p64, 2 * sizeof(__u32)) ||
copy_in_user(&p32->data_offset, &p64->data_offset,
sizeof(p64->data_offset)))
return -EFAULT;
memset(&plane32, 0, sizeof(plane32));
plane32 = (struct v4l2_plane32) {
.bytesused = p64->bytesused,
.length = p64->length,
.data_offset = p64->data_offset,
};
switch (memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
if (copy_in_user(&p32->m.mem_offset, &p64->m.mem_offset,
sizeof(p64->m.mem_offset)))
return -EFAULT;
plane32.m.mem_offset = p64->m.mem_offset;
break;
case V4L2_MEMORY_USERPTR:
if (get_user(p, &p64->m.userptr) ||
put_user((compat_ulong_t)ptr_to_compat((void __user *)p),
&p32->m.userptr))
return -EFAULT;
plane32.m.userptr = (uintptr_t)(p64->m.userptr);
break;
case V4L2_MEMORY_DMABUF:
if (copy_in_user(&p32->m.fd, &p64->m.fd, sizeof(p64->m.fd)))
return -EFAULT;
plane32.m.fd = p64->m.fd;
break;
}
if (copy_to_user(p32, &plane32, sizeof(plane32)))
return -EFAULT;
return 0;
}
static int bufsize_v4l2_buffer(struct v4l2_buffer32 __user *p32, u32 *size)
static int get_v4l2_buffer32(struct v4l2_buffer *vb,
struct v4l2_buffer32 __user *arg)
{
u32 type;
u32 length;
struct v4l2_buffer32 vb32;
if (!access_ok(p32, sizeof(*p32)) ||
get_user(type, &p32->type) ||
get_user(length, &p32->length))
if (copy_from_user(&vb32, arg, sizeof(vb32)))
return -EFAULT;
if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
if (length > VIDEO_MAX_PLANES)
return -EINVAL;
memset(vb, 0, sizeof(*vb));
*vb = (struct v4l2_buffer) {
.index = vb32.index,
.type = vb32.type,
.bytesused = vb32.bytesused,
.flags = vb32.flags,
.field = vb32.field,
.timestamp.tv_sec = vb32.timestamp.tv_sec,
.timestamp.tv_usec = vb32.timestamp.tv_usec,
.timecode = vb32.timecode,
.sequence = vb32.sequence,
.memory = vb32.memory,
.m.offset = vb32.m.offset,
.length = vb32.length,
.request_fd = vb32.request_fd,
};
/*
* We don't really care if userspace decides to kill itself
* by passing a very big length value
*/
*size = length * sizeof(struct v4l2_plane);
} else {
*size = 0;
}
return 0;
}
static int bufsize_v4l2_buffer_time32(struct v4l2_buffer32_time32 __user *p32, u32 *size)
{
u32 type;
u32 length;
if (!access_ok(p32, sizeof(*p32)) ||
get_user(type, &p32->type) ||
get_user(length, &p32->length))
return -EFAULT;
if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
if (length > VIDEO_MAX_PLANES)
return -EINVAL;
/*
* We don't really care if userspace decides to kill itself
* by passing a very big length value
*/
*size = length * sizeof(struct v4l2_plane);
} else {
*size = 0;
}
return 0;
}
static int get_v4l2_buffer32(struct v4l2_buffer __user *p64,
struct v4l2_buffer32 __user *p32,
void __user *aux_buf, u32 aux_space)
{
u32 type;
u32 length;
s32 request_fd;
enum v4l2_memory memory;
struct v4l2_plane32 __user *uplane32;
struct v4l2_plane __user *uplane;
compat_caddr_t p;
int ret;
if (!access_ok(p32, sizeof(*p32)) ||
assign_in_user(&p64->index, &p32->index) ||
get_user(type, &p32->type) ||
put_user(type, &p64->type) ||
assign_in_user(&p64->flags, &p32->flags) ||
get_user(memory, &p32->memory) ||
put_user(memory, &p64->memory) ||
get_user(length, &p32->length) ||
put_user(length, &p64->length) ||
get_user(request_fd, &p32->request_fd) ||
put_user(request_fd, &p64->request_fd))
return -EFAULT;
if (V4L2_TYPE_IS_OUTPUT(type))
if (assign_in_user(&p64->bytesused, &p32->bytesused) ||
assign_in_user(&p64->field, &p32->field) ||
assign_in_user(&p64->timestamp.tv_sec,
&p32->timestamp.tv_sec) ||
assign_in_user(&p64->timestamp.tv_usec,
&p32->timestamp.tv_usec))
return -EFAULT;
if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
u32 num_planes = length;
if (num_planes == 0) {
/*
* num_planes == 0 is legal, e.g. when userspace doesn't
* need planes array on DQBUF
*/
return put_user(NULL, &p64->m.planes);
}
if (num_planes > VIDEO_MAX_PLANES)
return -EINVAL;
if (get_user(p, &p32->m.planes))
return -EFAULT;
uplane32 = compat_ptr(p);
if (!access_ok(uplane32,
num_planes * sizeof(*uplane32)))
return -EFAULT;
/*
* We don't really care if userspace decides to kill itself
* by passing a very big num_planes value
*/
if (aux_space < num_planes * sizeof(*uplane))
return -EFAULT;
uplane = aux_buf;
if (put_user_force(uplane, &p64->m.planes))
return -EFAULT;
while (num_planes--) {
ret = get_v4l2_plane32(uplane, uplane32, memory);
if (ret)
return ret;
uplane++;
uplane32++;
}
} else {
switch (memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
if (assign_in_user(&p64->m.offset, &p32->m.offset))
return -EFAULT;
break;
case V4L2_MEMORY_USERPTR: {
compat_ulong_t userptr;
if (get_user(userptr, &p32->m.userptr) ||
put_user((unsigned long)compat_ptr(userptr),
&p64->m.userptr))
return -EFAULT;
break;
}
case V4L2_MEMORY_DMABUF:
if (assign_in_user(&p64->m.fd, &p32->m.fd))
return -EFAULT;
break;
}
switch (vb->memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
vb->m.offset = vb32.m.offset;
break;
case V4L2_MEMORY_USERPTR:
vb->m.userptr = (unsigned long)compat_ptr(vb32.m.userptr);
break;
case V4L2_MEMORY_DMABUF:
vb->m.fd = vb32.m.fd;
break;
}
if (V4L2_TYPE_IS_MULTIPLANAR(vb->type))
vb->m.planes = (void __force *)
compat_ptr(vb32.m.planes);
return 0;
}
static int get_v4l2_buffer32_time32(struct v4l2_buffer_time32 __user *p64,
struct v4l2_buffer32_time32 __user *p32,
void __user *aux_buf, u32 aux_space)
#ifdef CONFIG_COMPAT_32BIT_TIME
static int get_v4l2_buffer32_time32(struct v4l2_buffer *vb,
struct v4l2_buffer32_time32 __user *arg)
{
u32 type;
u32 length;
s32 request_fd;
enum v4l2_memory memory;
struct v4l2_plane32 __user *uplane32;
struct v4l2_plane __user *uplane;
compat_caddr_t p;
int ret;
struct v4l2_buffer32_time32 vb32;
if (!access_ok(p32, sizeof(*p32)) ||
assign_in_user(&p64->index, &p32->index) ||
get_user(type, &p32->type) ||
put_user(type, &p64->type) ||
assign_in_user(&p64->flags, &p32->flags) ||
get_user(memory, &p32->memory) ||
put_user(memory, &p64->memory) ||
get_user(length, &p32->length) ||
put_user(length, &p64->length) ||
get_user(request_fd, &p32->request_fd) ||
put_user(request_fd, &p64->request_fd))
if (copy_from_user(&vb32, arg, sizeof(vb32)))
return -EFAULT;
if (V4L2_TYPE_IS_OUTPUT(type))
if (assign_in_user(&p64->bytesused, &p32->bytesused) ||
assign_in_user(&p64->field, &p32->field) ||
assign_in_user(&p64->timestamp.tv_sec,
&p32->timestamp.tv_sec) ||
assign_in_user(&p64->timestamp.tv_usec,
&p32->timestamp.tv_usec))
return -EFAULT;
if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
u32 num_planes = length;
if (num_planes == 0) {
/*
* num_planes == 0 is legal, e.g. when userspace doesn't
* need planes array on DQBUF
*/
return put_user(NULL, &p64->m.planes);
}
if (num_planes > VIDEO_MAX_PLANES)
return -EINVAL;
if (get_user(p, &p32->m.planes))
return -EFAULT;
uplane32 = compat_ptr(p);
if (!access_ok(uplane32,
num_planes * sizeof(*uplane32)))
return -EFAULT;
/*
* We don't really care if userspace decides to kill itself
* by passing a very big num_planes value
*/
if (aux_space < num_planes * sizeof(*uplane))
return -EFAULT;
uplane = aux_buf;
if (put_user_force(uplane, &p64->m.planes))
return -EFAULT;
while (num_planes--) {
ret = get_v4l2_plane32(uplane, uplane32, memory);
if (ret)
return ret;
uplane++;
uplane32++;
}
} else {
switch (memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
if (assign_in_user(&p64->m.offset, &p32->m.offset))
return -EFAULT;
break;
case V4L2_MEMORY_USERPTR: {
compat_ulong_t userptr;
if (get_user(userptr, &p32->m.userptr) ||
put_user((unsigned long)compat_ptr(userptr),
&p64->m.userptr))
return -EFAULT;
break;
}
case V4L2_MEMORY_DMABUF:
if (assign_in_user(&p64->m.fd, &p32->m.fd))
return -EFAULT;
break;
}
*vb = (struct v4l2_buffer) {
.index = vb32.index,
.type = vb32.type,
.bytesused = vb32.bytesused,
.flags = vb32.flags,
.field = vb32.field,
.timestamp.tv_sec = vb32.timestamp.tv_sec,
.timestamp.tv_usec = vb32.timestamp.tv_usec,
.timecode = vb32.timecode,
.sequence = vb32.sequence,
.memory = vb32.memory,
.m.offset = vb32.m.offset,
.length = vb32.length,
.request_fd = vb32.request_fd,
};
switch (vb->memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
vb->m.offset = vb32.m.offset;
break;
case V4L2_MEMORY_USERPTR:
vb->m.userptr = (unsigned long)compat_ptr(vb32.m.userptr);
break;
case V4L2_MEMORY_DMABUF:
vb->m.fd = vb32.m.fd;
break;
}
if (V4L2_TYPE_IS_MULTIPLANAR(vb->type))
vb->m.planes = (void __force *)
compat_ptr(vb32.m.planes);
return 0;
}
#endif
static int put_v4l2_buffer32(struct v4l2_buffer __user *p64,
struct v4l2_buffer32 __user *p32)
static int put_v4l2_buffer32(struct v4l2_buffer *vb,
struct v4l2_buffer32 __user *arg)
{
u32 type;
u32 length;
enum v4l2_memory memory;
struct v4l2_plane32 __user *uplane32;
struct v4l2_plane *uplane;
compat_caddr_t p;
int ret;
struct v4l2_buffer32 vb32;
if (!access_ok(p32, sizeof(*p32)) ||
assign_in_user(&p32->index, &p64->index) ||
get_user(type, &p64->type) ||
put_user(type, &p32->type) ||
assign_in_user(&p32->flags, &p64->flags) ||
get_user(memory, &p64->memory) ||
put_user(memory, &p32->memory))
return -EFAULT;
memset(&vb32, 0, sizeof(vb32));
vb32 = (struct v4l2_buffer32) {
.index = vb->index,
.type = vb->type,
.bytesused = vb->bytesused,
.flags = vb->flags,
.field = vb->field,
.timestamp.tv_sec = vb->timestamp.tv_sec,
.timestamp.tv_usec = vb->timestamp.tv_usec,
.timecode = vb->timecode,
.sequence = vb->sequence,
.memory = vb->memory,
.m.offset = vb->m.offset,
.length = vb->length,
.request_fd = vb->request_fd,
};
if (assign_in_user(&p32->bytesused, &p64->bytesused) ||
assign_in_user(&p32->field, &p64->field) ||
assign_in_user(&p32->timestamp.tv_sec, &p64->timestamp.tv_sec) ||
assign_in_user(&p32->timestamp.tv_usec, &p64->timestamp.tv_usec) ||
copy_in_user(&p32->timecode, &p64->timecode, sizeof(p64->timecode)) ||
assign_in_user(&p32->sequence, &p64->sequence) ||
assign_in_user(&p32->reserved2, &p64->reserved2) ||
assign_in_user(&p32->request_fd, &p64->request_fd) ||
get_user(length, &p64->length) ||
put_user(length, &p32->length))
return -EFAULT;
if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
u32 num_planes = length;
if (num_planes == 0)
return 0;
/* We need to define uplane without __user, even though
* it does point to data in userspace here. The reason is
* that v4l2-ioctl.c copies it from userspace to kernelspace,
* so its definition in videodev2.h doesn't have a
* __user markup. Defining uplane with __user causes
* smatch warnings, so instead declare it without __user
* and cast it as a userspace pointer to put_v4l2_plane32().
*/
if (get_user(uplane, &p64->m.planes))
return -EFAULT;
if (get_user(p, &p32->m.planes))
return -EFAULT;
uplane32 = compat_ptr(p);
while (num_planes--) {
ret = put_v4l2_plane32((void __user *)uplane,
uplane32, memory);
if (ret)
return ret;
++uplane;
++uplane32;
}
} else {
switch (memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
if (assign_in_user(&p32->m.offset, &p64->m.offset))
return -EFAULT;
break;
case V4L2_MEMORY_USERPTR:
if (assign_in_user(&p32->m.userptr, &p64->m.userptr))
return -EFAULT;
break;
case V4L2_MEMORY_DMABUF:
if (assign_in_user(&p32->m.fd, &p64->m.fd))
return -EFAULT;
break;
}
switch (vb->memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
vb32.m.offset = vb->m.offset;
break;
case V4L2_MEMORY_USERPTR:
vb32.m.userptr = (uintptr_t)(vb->m.userptr);
break;
case V4L2_MEMORY_DMABUF:
vb32.m.fd = vb->m.fd;
break;
}
if (V4L2_TYPE_IS_MULTIPLANAR(vb->type))
vb32.m.planes = (uintptr_t)vb->m.planes;
if (copy_to_user(arg, &vb32, sizeof(vb32)))
return -EFAULT;
return 0;
}
static int put_v4l2_buffer32_time32(struct v4l2_buffer_time32 __user *p64,
struct v4l2_buffer32_time32 __user *p32)
#ifdef CONFIG_COMPAT_32BIT_TIME
static int put_v4l2_buffer32_time32(struct v4l2_buffer *vb,
struct v4l2_buffer32_time32 __user *arg)
{
u32 type;
u32 length;
enum v4l2_memory memory;
struct v4l2_plane32 __user *uplane32;
struct v4l2_plane *uplane;
compat_caddr_t p;
int ret;
struct v4l2_buffer32_time32 vb32;
if (!access_ok(p32, sizeof(*p32)) ||
assign_in_user(&p32->index, &p64->index) ||
get_user(type, &p64->type) ||
put_user(type, &p32->type) ||
assign_in_user(&p32->flags, &p64->flags) ||
get_user(memory, &p64->memory) ||
put_user(memory, &p32->memory))
return -EFAULT;
if (assign_in_user(&p32->bytesused, &p64->bytesused) ||
assign_in_user(&p32->field, &p64->field) ||
assign_in_user(&p32->timestamp.tv_sec, &p64->timestamp.tv_sec) ||
assign_in_user(&p32->timestamp.tv_usec, &p64->timestamp.tv_usec) ||
copy_in_user(&p32->timecode, &p64->timecode, sizeof(p64->timecode)) ||
assign_in_user(&p32->sequence, &p64->sequence) ||
assign_in_user(&p32->reserved2, &p64->reserved2) ||
assign_in_user(&p32->request_fd, &p64->request_fd) ||
get_user(length, &p64->length) ||
put_user(length, &p32->length))
return -EFAULT;
if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
u32 num_planes = length;
if (num_planes == 0)
return 0;
/* We need to define uplane without __user, even though
* it does point to data in userspace here. The reason is
* that v4l2-ioctl.c copies it from userspace to kernelspace,
* so its definition in videodev2.h doesn't have a
* __user markup. Defining uplane with __user causes
* smatch warnings, so instead declare it without __user
* and cast it as a userspace pointer to put_v4l2_plane32().
*/
if (get_user(uplane, &p64->m.planes))
return -EFAULT;
if (get_user(p, &p32->m.planes))
return -EFAULT;
uplane32 = compat_ptr(p);
while (num_planes--) {
ret = put_v4l2_plane32((void __user *)uplane,
uplane32, memory);
if (ret)
return ret;
++uplane;
++uplane32;
}
} else {
switch (memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
if (assign_in_user(&p32->m.offset, &p64->m.offset))
return -EFAULT;
break;
case V4L2_MEMORY_USERPTR:
if (assign_in_user(&p32->m.userptr, &p64->m.userptr))
return -EFAULT;
break;
case V4L2_MEMORY_DMABUF:
if (assign_in_user(&p32->m.fd, &p64->m.fd))
return -EFAULT;
break;
}
memset(&vb32, 0, sizeof(vb32));
vb32 = (struct v4l2_buffer32_time32) {
.index = vb->index,
.type = vb->type,
.bytesused = vb->bytesused,
.flags = vb->flags,
.field = vb->field,
.timestamp.tv_sec = vb->timestamp.tv_sec,
.timestamp.tv_usec = vb->timestamp.tv_usec,
.timecode = vb->timecode,
.sequence = vb->sequence,
.memory = vb->memory,
.m.offset = vb->m.offset,
.length = vb->length,
.request_fd = vb->request_fd,
};
switch (vb->memory) {
case V4L2_MEMORY_MMAP:
case V4L2_MEMORY_OVERLAY:
vb32.m.offset = vb->m.offset;
break;
case V4L2_MEMORY_USERPTR:
vb32.m.userptr = (uintptr_t)(vb->m.userptr);
break;
case V4L2_MEMORY_DMABUF:
vb32.m.fd = vb->m.fd;
break;
}
if (V4L2_TYPE_IS_MULTIPLANAR(vb->type))
vb32.m.planes = (uintptr_t)vb->m.planes;
if (copy_to_user(arg, &vb32, sizeof(vb32)))
return -EFAULT;
return 0;
}
#endif
struct v4l2_framebuffer32 {
__u32 capability;
@ -1311,12 +1081,30 @@ static int put_v4l2_edid32(struct v4l2_edid __user *p64,
unsigned int v4l2_compat_translate_cmd(unsigned int cmd)
{
switch (cmd) {
#ifdef CONFIG_COMPAT_32BIT_TIME
case VIDIOC_QUERYBUF32_TIME32:
return VIDIOC_QUERYBUF;
case VIDIOC_QBUF32_TIME32:
return VIDIOC_QBUF;
case VIDIOC_DQBUF32_TIME32:
return VIDIOC_DQBUF;
case VIDIOC_PREPARE_BUF32_TIME32:
return VIDIOC_PREPARE_BUF;
#endif
case VIDIOC_QUERYBUF32:
return VIDIOC_QUERYBUF;
case VIDIOC_QBUF32:
return VIDIOC_QBUF;
case VIDIOC_DQBUF32:
return VIDIOC_DQBUF;
case VIDIOC_G_EXT_CTRLS32:
return VIDIOC_G_EXT_CTRLS;
case VIDIOC_S_EXT_CTRLS32:
return VIDIOC_S_EXT_CTRLS;
case VIDIOC_TRY_EXT_CTRLS32:
return VIDIOC_TRY_EXT_CTRLS;
case VIDIOC_PREPARE_BUF32:
return VIDIOC_PREPARE_BUF;
}
return cmd;
}
@ -1324,6 +1112,19 @@ unsigned int v4l2_compat_translate_cmd(unsigned int cmd)
int v4l2_compat_get_user(void __user *arg, void *parg, unsigned int cmd)
{
switch (cmd) {
#ifdef CONFIG_COMPAT_32BIT_TIME
case VIDIOC_QUERYBUF32_TIME32:
case VIDIOC_QBUF32_TIME32:
case VIDIOC_DQBUF32_TIME32:
case VIDIOC_PREPARE_BUF32_TIME32:
return get_v4l2_buffer32_time32(parg, arg);
#endif
case VIDIOC_QUERYBUF32:
case VIDIOC_QBUF32:
case VIDIOC_DQBUF32:
case VIDIOC_PREPARE_BUF32:
return get_v4l2_buffer32(parg, arg);
case VIDIOC_G_EXT_CTRLS32:
case VIDIOC_S_EXT_CTRLS32:
case VIDIOC_TRY_EXT_CTRLS32:
@ -1335,6 +1136,19 @@ int v4l2_compat_get_user(void __user *arg, void *parg, unsigned int cmd)
int v4l2_compat_put_user(void __user *arg, void *parg, unsigned int cmd)
{
switch (cmd) {
#ifdef CONFIG_COMPAT_32BIT_TIME
case VIDIOC_QUERYBUF32_TIME32:
case VIDIOC_QBUF32_TIME32:
case VIDIOC_DQBUF32_TIME32:
case VIDIOC_PREPARE_BUF32_TIME32:
return put_v4l2_buffer32_time32(parg, arg);
#endif
case VIDIOC_QUERYBUF32:
case VIDIOC_QBUF32:
case VIDIOC_DQBUF32:
case VIDIOC_PREPARE_BUF32:
return put_v4l2_buffer32(parg, arg);
case VIDIOC_G_EXT_CTRLS32:
case VIDIOC_S_EXT_CTRLS32:
case VIDIOC_TRY_EXT_CTRLS32:
@ -1350,6 +1164,34 @@ int v4l2_compat_get_array_args(struct file *file, void *mbuf,
int err = 0;
switch (cmd) {
case VIDIOC_QUERYBUF32_TIME32:
case VIDIOC_QBUF32_TIME32:
case VIDIOC_DQBUF32_TIME32:
case VIDIOC_PREPARE_BUF32_TIME32:
case VIDIOC_QUERYBUF32:
case VIDIOC_QBUF32:
case VIDIOC_DQBUF32:
case VIDIOC_PREPARE_BUF32: {
struct v4l2_buffer *b64 = arg;
struct v4l2_plane *p64 = mbuf;
struct v4l2_plane32 __user *p32 = user_ptr;
if (V4L2_TYPE_IS_MULTIPLANAR(b64->type)) {
u32 num_planes = b64->length;
if (num_planes == 0)
return 0;
while (num_planes--) {
err = get_v4l2_plane32(p64, p32, b64->memory);
if (err)
return err;
++p64;
++p32;
}
}
break;
}
case VIDIOC_G_EXT_CTRLS32:
case VIDIOC_S_EXT_CTRLS32:
case VIDIOC_TRY_EXT_CTRLS32: {
@ -1390,6 +1232,34 @@ int v4l2_compat_put_array_args(struct file *file, void __user *user_ptr,
int err = 0;
switch (cmd) {
case VIDIOC_QUERYBUF32_TIME32:
case VIDIOC_QBUF32_TIME32:
case VIDIOC_DQBUF32_TIME32:
case VIDIOC_PREPARE_BUF32_TIME32:
case VIDIOC_QUERYBUF32:
case VIDIOC_QBUF32:
case VIDIOC_DQBUF32:
case VIDIOC_PREPARE_BUF32: {
struct v4l2_buffer *b64 = arg;
struct v4l2_plane *p64 = mbuf;
struct v4l2_plane32 __user *p32 = user_ptr;
if (V4L2_TYPE_IS_MULTIPLANAR(b64->type)) {
u32 num_planes = b64->length;
if (num_planes == 0)
return 0;
while (num_planes--) {
err = put_v4l2_plane32(p64, p32, b64->memory);
if (err)
return err;
++p64;
++p32;
}
}
break;
}
case VIDIOC_G_EXT_CTRLS32:
case VIDIOC_S_EXT_CTRLS32:
case VIDIOC_TRY_EXT_CTRLS32: {
@ -1485,14 +1355,8 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
switch (cmd) {
case VIDIOC_G_FMT32: ncmd = VIDIOC_G_FMT; break;
case VIDIOC_S_FMT32: ncmd = VIDIOC_S_FMT; break;
case VIDIOC_QUERYBUF32: ncmd = VIDIOC_QUERYBUF; break;
case VIDIOC_QUERYBUF32_TIME32: ncmd = VIDIOC_QUERYBUF_TIME32; break;
case VIDIOC_G_FBUF32: ncmd = VIDIOC_G_FBUF; break;
case VIDIOC_S_FBUF32: ncmd = VIDIOC_S_FBUF; break;
case VIDIOC_QBUF32: ncmd = VIDIOC_QBUF; break;
case VIDIOC_QBUF32_TIME32: ncmd = VIDIOC_QBUF_TIME32; break;
case VIDIOC_DQBUF32: ncmd = VIDIOC_DQBUF; break;
case VIDIOC_DQBUF32_TIME32: ncmd = VIDIOC_DQBUF_TIME32; break;
case VIDIOC_ENUMSTD32: ncmd = VIDIOC_ENUMSTD; break;
case VIDIOC_ENUMINPUT32: ncmd = VIDIOC_ENUMINPUT; break;
case VIDIOC_TRY_FMT32: ncmd = VIDIOC_TRY_FMT; break;
@ -1501,8 +1365,6 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
case VIDIOC_DQEVENT32_TIME32: ncmd = VIDIOC_DQEVENT_TIME32; break;
#endif
case VIDIOC_CREATE_BUFS32: ncmd = VIDIOC_CREATE_BUFS; break;
case VIDIOC_PREPARE_BUF32: ncmd = VIDIOC_PREPARE_BUF; break;
case VIDIOC_PREPARE_BUF32_TIME32: ncmd = VIDIOC_PREPARE_BUF_TIME32; break;
case VIDIOC_G_EDID32: ncmd = VIDIOC_G_EDID; break;
case VIDIOC_S_EDID32: ncmd = VIDIOC_S_EDID; break;
default: ncmd = cmd; break;
@ -1550,38 +1412,6 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
compatible_arg = 0;
break;
case VIDIOC_PREPARE_BUF32:
case VIDIOC_QUERYBUF32:
case VIDIOC_QBUF32:
case VIDIOC_DQBUF32:
err = bufsize_v4l2_buffer(p32, &aux_space);
if (!err)
err = alloc_userspace(sizeof(struct v4l2_buffer),
aux_space, &new_p64);
if (!err) {
aux_buf = new_p64 + sizeof(struct v4l2_buffer);
err = get_v4l2_buffer32(new_p64, p32,
aux_buf, aux_space);
}
compatible_arg = 0;
break;
case VIDIOC_PREPARE_BUF32_TIME32:
case VIDIOC_QUERYBUF32_TIME32:
case VIDIOC_QBUF32_TIME32:
case VIDIOC_DQBUF32_TIME32:
err = bufsize_v4l2_buffer_time32(p32, &aux_space);
if (!err)
err = alloc_userspace(sizeof(struct v4l2_buffer),
aux_space, &new_p64);
if (!err) {
aux_buf = new_p64 + sizeof(struct v4l2_buffer);
err = get_v4l2_buffer32_time32(new_p64, p32,
aux_buf, aux_space);
}
compatible_arg = 0;
break;
case VIDIOC_S_FBUF32:
err = alloc_userspace(sizeof(struct v4l2_framebuffer), 0,
&new_p64);
@ -1694,20 +1524,6 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
err = put_v4l2_create32(new_p64, p32);
break;
case VIDIOC_PREPARE_BUF32:
case VIDIOC_QUERYBUF32:
case VIDIOC_QBUF32:
case VIDIOC_DQBUF32:
err = put_v4l2_buffer32(new_p64, p32);
break;
case VIDIOC_PREPARE_BUF32_TIME32:
case VIDIOC_QUERYBUF32_TIME32:
case VIDIOC_QBUF32_TIME32:
case VIDIOC_DQBUF32_TIME32:
err = put_v4l2_buffer32_time32(new_p64, p32);
break;
case VIDIOC_ENUMSTD32:
err = put_v4l2_standard32(new_p64, p32);
break;