usb: introduce usb_device authorization bits (da04b7a4) · Commits · 戴 / test

This just modifies 'struct usb_device' to contain the 'authorized' bit. It also adds a 'wusb' bit. This is needed because nonauthorized (and thus non-authenticated) wusb devices will fail certain kind of simple requests (such as string descriptors). By knowing the device is WUSB, we just avoid them. Signed-off-by:

Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by:

Greg Kroah-Hartman <gregkh@suse.de>

include/linux/usb.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -346,6 +346,11 @@ struct usb_tt;
		*
		* Usbcore drivers should not set usbdev->state directly. Instead use
		* usb_set_device_state().
		*
		* @authorized: (user space) policy determines if we authorize this
		* device to be used or not. By default, wired USB
		* devices are authorized. WUSB devices are not, until we
		* authorize them from user space. FIXME -- complete doc
		*/
		struct usb_device {
		int devnum; /* Address on USB bus */
		@@ -380,6 +385,8 @@ struct usb_device {

		unsigned discon_suspended:1; /* Disconnected while suspended */
		unsigned have_langid:1; /* whether string_langid is valid */
		unsigned authorized:1; /* Policy has determined we can use it */
		unsigned wusb:1; /* Device is Wireless USB */
		int string_langid; /* language ID for strings */

		/* static strings from the device */

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