libusb: capsicumize libusbHEADmain

FreeBSD's libusb has three components: libusb01, libusb10, and libusb20.

libusb20 handles communication with character devices. We now requires a
backend context for libusb20. The backend context contains contains the
capsicumized usbctrl fd and usb directory (/dev/usb) fd so that the
library user can enter the capiblity mode safely while using libusb.

libusb10 is updated to support capabilities via a context option. Since
libusb allows general read/write access, we preserve all possible
capabilities when passing backend context to libusb20. It is the
responsibility of the libusb user to call cap_enter() at an appropriate
time.

All base system tools using libusb and libusb20 have been updated to
support Capsicum.

Reviewed by:    adrian, markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D51865

0 files changed, 0 insertions, 0 deletions