diff options
author | David S. Miller <davem@sunset.davemloft.net> | 2005-11-16 00:52:57 -0800 |
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committer | David S. Miller <davem@sunset.davemloft.net> | 2005-11-16 00:52:57 -0800 |
commit | 6e87abd0b8cbb23ed9ffe5cc9f790fb5cac45eae (patch) | |
tree | 2469b23b6410153c7b25f03b6e5d3b846874a7d7 /fs | |
parent | 7b5603e056b8b5f3175f14badd895b9ac567f315 (diff) |
[DVB]: Add compat ioctl handling.
Based upon a patch by Guido Guenther <agx@sigxcpu.org>.
Some of these ioctls had embedded time_t objects
or pointers, so needed translation.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/compat_ioctl.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 26300fccb4fc..f07e60f9e102 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -121,6 +121,11 @@ #include <linux/hiddev.h> +#include <linux/dvb/audio.h> +#include <linux/dvb/dmx.h> +#include <linux/dvb/frontend.h> +#include <linux/dvb/video.h> + #undef INCLUDES #endif @@ -413,6 +418,128 @@ out: return err; } +struct compat_dmx_event { + dmx_event_t event; + compat_time_t timeStamp; + union + { + dmx_scrambling_status_t scrambling; + } u; +}; + +static int do_dmx_get_event(unsigned int fd, unsigned int cmd, unsigned long arg) +{ + struct dmx_event kevent; + mm_segment_t old_fs = get_fs(); + int err; + + set_fs(KERNEL_DS); + err = sys_ioctl(fd, cmd, (unsigned long) &kevent); + set_fs(old_fs); + + if (!err) { + struct compat_dmx_event __user *up = compat_ptr(arg); + + err = put_user(kevent.event, &up->event); + err |= put_user(kevent.timeStamp, &up->timeStamp); + err |= put_user(kevent.u.scrambling, &up->u.scrambling); + if (err) + err = -EFAULT; + } + + return err; +} + +struct compat_video_event { + int32_t type; + compat_time_t timestamp; + union { + video_size_t size; + unsigned int frame_rate; + } u; +}; + +static int do_video_get_event(unsigned int fd, unsigned int cmd, unsigned long arg) +{ + struct video_event kevent; + mm_segment_t old_fs = get_fs(); + int err; + + set_fs(KERNEL_DS); + err = sys_ioctl(fd, cmd, (unsigned long) &kevent); + set_fs(old_fs); + + if (!err) { + struct compat_video_event __user *up = compat_ptr(arg); + + err = put_user(kevent.type, &up->type); + err |= put_user(kevent.timestamp, &up->timestamp); + err |= put_user(kevent.u.size.w, &up->u.size.w); + err |= put_user(kevent.u.size.h, &up->u.size.h); + err |= put_user(kevent.u.size.aspect_ratio, + &up->u.size.aspect_ratio); + if (err) + err = -EFAULT; + } + + return err; +} + +struct compat_video_still_picture { + compat_uptr_t iFrame; + int32_t size; +}; + +static int do_video_stillpicture(unsigned int fd, unsigned int cmd, unsigned long arg) +{ + struct compat_video_still_picture __user *up; + struct video_still_picture __user *up_native; + compat_uptr_t fp; + int32_t size; + int err; + + up = (struct compat_video_still_picture __user *) arg; + err = get_user(fp, &up->iFrame); + err |= get_user(size, &up->size); + if (err) + return -EFAULT; + + up_native = + compat_alloc_user_space(sizeof(struct video_still_picture)); + + put_user(compat_ptr(fp), &up_native->iFrame); + put_user(size, &up_native->size); + + err = sys_ioctl(fd, cmd, (unsigned long) up_native); + + return err; +} + +struct compat_video_spu_palette { + int length; + compat_uptr_t palette; +}; + +static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd, unsigned long arg) +{ + struct compat_video_spu_palette __user *up; + struct video_spu_palette __user *up_native; + compat_uptr_t palp; + int length, err; + + up = (struct compat_video_spu_palette __user *) arg; + err = get_user(palp, &up->palette); + err |= get_user(length, &up->length); + + up_native = compat_alloc_user_space(sizeof(struct video_spu_palette)); + put_user(compat_ptr(palp), &up_native->palette); + put_user(length, &up_native->length); + + err = sys_ioctl(fd, cmd, (unsigned long) up_native); + + return err; +} + #ifdef CONFIG_NET static int do_siocgstamp(unsigned int fd, unsigned int cmd, unsigned long arg) { @@ -2954,5 +3081,11 @@ HANDLE_IOCTL(NCP_IOC_GETPRIVATEDATA_32, do_ncp_getprivatedata) HANDLE_IOCTL(NCP_IOC_SETPRIVATEDATA_32, do_ncp_setprivatedata) #endif +/* dvb */ +HANDLE_IOCTL(DMX_GET_EVENT, do_dmx_get_event) +HANDLE_IOCTL(VIDEO_GET_EVENT, do_video_get_event) +HANDLE_IOCTL(VIDEO_STILLPICTURE, do_video_stillpicture) +HANDLE_IOCTL(VIDEO_SET_SPU_PALETTE, do_video_set_spu_palette) + #undef DECLARES #endif |