* [PATCH] Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
@ 2019-05-22 1:39 Andrey Smirnov
2019-05-23 19:59 ` Dmitry Torokhov
0 siblings, 1 reply; 2+ messages in thread
From: Andrey Smirnov @ 2019-05-22 1:39 UTC (permalink / raw)
To: linux-input
Cc: Andrey Smirnov, Pierre-Loup A . Griffais, Dmitry Torokhov,
stable, linux-kernel
In the case of compat syscall ioctl numbers for UI_BEGIN_FF_UPLOAD and
UI_END_FF_UPLOAD need to be adjusted before being passed on
uinput_ioctl_handler() since code built with -m32 will be passing
slightly different values. Extend the code already covering
UI_SET_PHYS to cover UI_BEGIN_FF_UPLOAD and UI_END_FF_UPLOAD as well.
Reported-by: Pierre-Loup A. Griffais <pgriffais@valvesoftware.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/input/misc/uinput.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 1a6762fc38f9..1116d4cd5695 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -1051,13 +1051,24 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
#ifdef CONFIG_COMPAT
-#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+#define UI_BEGIN_FF_UPLOAD_COMPAT _IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
+#define UI_END_FF_UPLOAD_COMPAT _IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)
static long uinput_compat_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- if (cmd == UI_SET_PHYS_COMPAT)
+ switch (cmd) {
+ case UI_SET_PHYS_COMPAT:
cmd = UI_SET_PHYS;
+ break;
+ case UI_BEGIN_FF_UPLOAD_COMPAT:
+ cmd = UI_BEGIN_FF_UPLOAD;
+ break;
+ case UI_END_FF_UPLOAD_COMPAT:
+ cmd = UI_END_FF_UPLOAD;
+ break;
+ }
return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
}
--
2.21.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
2019-05-22 1:39 [PATCH] Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD Andrey Smirnov
@ 2019-05-23 19:59 ` Dmitry Torokhov
0 siblings, 0 replies; 2+ messages in thread
From: Dmitry Torokhov @ 2019-05-23 19:59 UTC (permalink / raw)
To: Andrey Smirnov
Cc: linux-input, Pierre-Loup A . Griffais, stable, linux-kernel
On Tue, May 21, 2019 at 06:39:22PM -0700, Andrey Smirnov wrote:
> In the case of compat syscall ioctl numbers for UI_BEGIN_FF_UPLOAD and
> UI_END_FF_UPLOAD need to be adjusted before being passed on
> uinput_ioctl_handler() since code built with -m32 will be passing
> slightly different values. Extend the code already covering
> UI_SET_PHYS to cover UI_BEGIN_FF_UPLOAD and UI_END_FF_UPLOAD as well.
>
> Reported-by: Pierre-Loup A. Griffais <pgriffais@valvesoftware.com>
> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Cc: linux-input@vger.kernel.org
> Cc: stable@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
Applied, thank you.
> ---
> drivers/input/misc/uinput.c | 15 +++++++++++++--
> 1 file changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
> index 1a6762fc38f9..1116d4cd5695 100644
> --- a/drivers/input/misc/uinput.c
> +++ b/drivers/input/misc/uinput.c
> @@ -1051,13 +1051,24 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
>
> #ifdef CONFIG_COMPAT
>
> -#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
> +#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
> +#define UI_BEGIN_FF_UPLOAD_COMPAT _IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
> +#define UI_END_FF_UPLOAD_COMPAT _IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)
>
> static long uinput_compat_ioctl(struct file *file,
> unsigned int cmd, unsigned long arg)
> {
> - if (cmd == UI_SET_PHYS_COMPAT)
> + switch (cmd) {
> + case UI_SET_PHYS_COMPAT:
> cmd = UI_SET_PHYS;
> + break;
> + case UI_BEGIN_FF_UPLOAD_COMPAT:
> + cmd = UI_BEGIN_FF_UPLOAD;
> + break;
> + case UI_END_FF_UPLOAD_COMPAT:
> + cmd = UI_END_FF_UPLOAD;
> + break;
> + }
>
> return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
> }
> --
> 2.21.0
>
--
Dmitry
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