diff mbox series

[11/13] drm/vgem: drop DRM_AUTH usage from the driver

Message ID 20190527081741.14235-11-emil.l.velikov@gmail.com (mailing list archive)
State New, archived
Headers show
Series [01/13] drm/amdgpu: introduce and honour DRM_FORCE_AUTH workaround | expand

Commit Message

Emil Velikov May 27, 2019, 8:17 a.m. UTC 
From: Emil Velikov <emil.velikov@collabora.com>

The authentication can be circumvented, by design, by using the render
node.

From the driver POV there is no distinction between primary and render
nodes, thus we can drop the token.

Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
---
 drivers/gpu/drm/vgem/vgem_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Emil Velikov June 6, 2019, 10:59 a.m. UTC | #1 
On Mon, 27 May 2019 at 09:19, Emil Velikov <emil.l.velikov@gmail.com> wrote:
>
> From: Emil Velikov <emil.velikov@collabora.com>
>
> The authentication can be circumvented, by design, by using the render
> node.
>
> From the driver POV there is no distinction between primary and render
> nodes, thus we can drop the token.
>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
> ---
>  drivers/gpu/drm/vgem/vgem_drv.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
> index 11a8f99ba18c..0ba079f1b302 100644
> --- a/drivers/gpu/drm/vgem/vgem_drv.c
> +++ b/drivers/gpu/drm/vgem/vgem_drv.c
> @@ -246,8 +246,8 @@ static int vgem_gem_dumb_map(struct drm_file *file, struct drm_device *dev,
>  }
>
>  static struct drm_ioctl_desc vgem_ioctls[] = {
> -       DRM_IOCTL_DEF_DRV(VGEM_FENCE_ATTACH, vgem_fence_attach_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
> -       DRM_IOCTL_DEF_DRV(VGEM_FENCE_SIGNAL, vgem_fence_signal_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
> +       DRM_IOCTL_DEF_DRV(VGEM_FENCE_ATTACH, vgem_fence_attach_ioctl, DRM_RENDER_ALLOW),
> +       DRM_IOCTL_DEF_DRV(VGEM_FENCE_SIGNAL, vgem_fence_signal_ioctl, DRM_RENDER_ALLOW),
>  };
>
>  static int vgem_mmap(struct file *filp, struct vm_area_struct *vma)
> --
> 2.21.0
>

Humble poke?

Thanks,
Emil
Emil Velikov Aug. 6, 2019, 9:44 a.m. UTC | #2 
On Mon, 27 May 2019 at 09:19, Emil Velikov <emil.l.velikov@gmail.com> wrote:
>
> From: Emil Velikov <emil.velikov@collabora.com>
>
> The authentication can be circumvented, by design, by using the render
> node.
>
> From the driver POV there is no distinction between primary and render
> nodes, thus we can drop the token.
>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
> ---
>  drivers/gpu/drm/vgem/vgem_drv.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
> index 11a8f99ba18c..0ba079f1b302 100644
> --- a/drivers/gpu/drm/vgem/vgem_drv.c
> +++ b/drivers/gpu/drm/vgem/vgem_drv.c
> @@ -246,8 +246,8 @@ static int vgem_gem_dumb_map(struct drm_file *file, struct drm_device *dev,
>  }
>
>  static struct drm_ioctl_desc vgem_ioctls[] = {
> -       DRM_IOCTL_DEF_DRV(VGEM_FENCE_ATTACH, vgem_fence_attach_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
> -       DRM_IOCTL_DEF_DRV(VGEM_FENCE_SIGNAL, vgem_fence_signal_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
> +       DRM_IOCTL_DEF_DRV(VGEM_FENCE_ATTACH, vgem_fence_attach_ioctl, DRM_RENDER_ALLOW),
> +       DRM_IOCTL_DEF_DRV(VGEM_FENCE_SIGNAL, vgem_fence_signal_ioctl, DRM_RENDER_ALLOW),
>  };
>
>  static int vgem_mmap(struct file *filp, struct vm_area_struct *vma)
> --

Humble ping?

Thanks,
Emil
diff mbox series

Patch

diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index 11a8f99ba18c..0ba079f1b302 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -246,8 +246,8 @@  static int vgem_gem_dumb_map(struct drm_file *file, struct drm_device *dev,
 }
 
 static struct drm_ioctl_desc vgem_ioctls[] = {
-	DRM_IOCTL_DEF_DRV(VGEM_FENCE_ATTACH, vgem_fence_attach_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
-	DRM_IOCTL_DEF_DRV(VGEM_FENCE_SIGNAL, vgem_fence_signal_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(VGEM_FENCE_ATTACH, vgem_fence_attach_ioctl, DRM_RENDER_ALLOW),
+	DRM_IOCTL_DEF_DRV(VGEM_FENCE_SIGNAL, vgem_fence_signal_ioctl, DRM_RENDER_ALLOW),
 };
 
 static int vgem_mmap(struct file *filp, struct vm_area_struct *vma)