Re: Disable external USB devices

Hi stefan,
i asked this a bit ago (or similar)
1. https://usbguard.github.io/
2. you can just disable USB ports or controller in BIOS, but that's not
exciting at all.
3. this diff, which one person used once:

Index: sys/dev/usb/uhub.c
===================================================================
RCS file: /cvs/src/sys/dev/usb/uhub.c,v
retrieving revision 1.89
diff -u -p -u -r1.89 uhub.c
--- sys/dev/usb/uhub.c 2 Sep 2016 09:14:59 -0000 1.89
+++ sys/dev/usb/uhub.c 1 Jan 2017 22:52:53 -0000
@@ -55,6 +55,9 @@
#define DEVNAME(sc) ((sc)->sc_dev.dv_xname)
+/* controls enabling/disabling of USB bus probing */
+int busprobe = 1;
+
struct uhub_softc {
struct device sc_dev; /* base device */
struct usbd_device *sc_hub; /* USB device */
@@ -439,6 +442,9 @@ uhub_explore(struct usbd_device *dev)
usbd_clear_port_feature(sc->sc_hub, port,
UHF_C_PORT_LINK_STATE);
}
+
+ if (!busprobe)
+ return (0);
/* Recursive explore. */
if (up->device != NULL && up->device->hub != NULL)
Index: sys/dev/usb/usb.c
===================================================================
RCS file: /cvs/src/sys/dev/usb/usb.c,v
retrieving revision 1.111
diff -u -p -u -r1.111 usb.c
--- sys/dev/usb/usb.c 18 May 2016 18:28:58 -0000 1.111
+++ sys/dev/usb/usb.c 1 Jan 2017 22:52:53 -0000
@@ -87,6 +87,8 @@ int usb_noexplore = 0;
#define DPRINTFN(n,x)