From: Niko Mauno <niko.mauno@xxxxxxxxxxx>
Make the default USB device authorization mode configurable at build
time. This is useful for systems that require a mode that is stricter
than the standard setting, as it avoids relying on the kernel command
line being properly set.
Signed-off-by: Niko Mauno <niko.mauno@xxxxxxxxxxx>
---
drivers/usb/core/Kconfig | 15 +++++++++++++++
drivers/usb/core/hcd.c | 2 +-
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index 351ede4b5de2..10ad320cc2f3 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -116,3 +116,18 @@ config USB_AUTOSUSPEND_DELAY
The default value Linux has always had is 2 seconds. Change
this value if you want a different delay and cannot modify
the command line or module parameter.
+
+config USB_DEFAULT_AUTHORIZATION_MODE
+ int "Default authorization mode for USB devices"
+ range -1 2
+ default -1
+ depends on USB
+ help
+ Select the default USB device authorization mode. Can be overridden
+ with usbcore.authorized_default command line or module parameter.
+
+ The available values have the following meanings:
+ -1 is authorized for all devices (leftover from wireless USB)
+ 0 is unauthorized for all devices
+ 1 is authorized for all devices
+ 2 is authorized for internal devices
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 12b6dfeaf658..f39170c46be7 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -357,7 +357,7 @@ static const u8 ss_rh_config_descriptor[] = {
#define USB_AUTHORIZE_ALL 1
#define USB_AUTHORIZE_INTERNAL 2
-static int authorized_default = USB_AUTHORIZE_WIRED;
+static int authorized_default = CONFIG_USB_DEFAULT_AUTHORIZATION_MODE;
module_param(authorized_default, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(authorized_default,
"Default USB device authorization: 0 is not authorized, 1 is "
--
2.39.2
