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The former value can still be passed as a module parameter to retain backwards compatibility. Signed-off-by: Niko Mauno --- drivers/usb/core/hcd.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 12b6dfeaf658..9aa5e6bf9b9d 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -357,12 +357,10 @@ 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 = USB_AUTHORIZE_ALL; module_param(authorized_default, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(authorized_default, - "Default USB device authorization: 0 is not authorized, 1 is " - "authorized, 2 is authorized for internal devices, -1 is " - "authorized (default, same as 1)"); + "Default USB device authorization: 0 is not authorized, 1 is authorized (default), 2 is authorized for internal devices, -1 is authorized (same as 1)"); /*-------------------------------------------------------------------------*/ /** From patchwork Fri Feb 9 09:46:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niko Mauno X-Patchwork-Id: 198799 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:50ea:b0:106:860b:bbdd with SMTP id r10csp737690dyd; Fri, 9 Feb 2024 01:48:18 -0800 (PST) X-Google-Smtp-Source: AGHT+IHmbkkALMle+X7BhUAPnSKcXVvvulzqH3SOsifJVsgugwSWG9PWibaB7RbtyTUUbWbbeerv X-Received: by 2002:a05:6a20:9c8a:b0:19c:a7e5:37cc with SMTP id mj10-20020a056a209c8a00b0019ca7e537ccmr1493304pzb.41.1707472098003; Fri, 09 Feb 2024 01:48:18 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCW8dtmGs/KU4sL2kXU//VN49AKKPEP7VaFN5iBJZgtGCHPteNLMqeQOhXhVkzdotlkyeIU5iQ1CQBrupkmLtcD9gHrS+Q== Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. 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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 --- drivers/usb/core/Kconfig | 28 ++++++++++++++++++++++++++++ drivers/usb/core/hcd.c | 2 +- 2 files changed, 29 insertions(+), 1 deletion(-) diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig index 351ede4b5de2..0bf425889c10 100644 --- a/drivers/usb/core/Kconfig +++ b/drivers/usb/core/Kconfig @@ -116,3 +116,31 @@ 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 0 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. + + This option allows you to choose whether USB devices that are + connected to the system can be used by default, or if they are + locked down. + + With value 0 all connected USB devices with the exception of root + hub require user space authorization before they can be used. + + With value 1 (default) no user space authorization is required to + use connected USB devices. + + With value 2 all connected USB devices with exception of internal + USB devices require user space authorization before they can be + used. Note that in this mode the differentiation between internal + and external USB devices relies on ACPI, and on systems without + ACPI selecting value 2 is analogous to selecting value 0. + + If the default value is too permissive but you are unsure which + mode to use, say 2. diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 9aa5e6bf9b9d..d56597dc7d42 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_ALL; +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 authorized (default), 2 is authorized for internal devices, -1 is authorized (same as 1)");