diff options
| author | Reyk Floeter <reyk@cvs.openbsd.org> | 2019-12-17 13:08:57 +0000 |
|---|---|---|
| committer | Reyk Floeter <reyk@cvs.openbsd.org> | 2019-12-17 13:08:57 +0000 |
| commit | 93c5a80cd9505a17528ed97b6fc75b8a12a2adc6 (patch) | |
| tree | b744b8472950e501afef29498928e14ae3b24652 /sys/arch/amd64/conf | |
| parent | 3a713a9a6753ac8aa6d5e955f64f8b47b79e516a (diff) | |
Add fido(4), a HID driver for FIDO/U2F security keys
While FIDO/U2F keys were already supported by the generic uhid(4)
driver, this driver adds the first step to tighten the security of
FIDO/U2F access. Specifically, users don't need read/write access to
all USB/HID devices anymore and the driver also improves integration
with pledge(2) and unveil(2): It is pledge-friendly because it doesn't
require any ioctls to discover the device and unveil-friendly because
it uses a single /dev/fido/* directory for its device nodes.
It also allows to support FIDO/U2F in firefox without further
weakening the "sandbox" of the browser. Firefox does not have a
proper privsep design and many operations, such as U2F access, are
handled directly by the main process. This means that the browser's
"fat" main process needs direct read/write access to all USB HID
devices, at least on other operating systems. With fido(4) we can
support security keys in Firefox under OpenBSD without such a
compromise.
With this change, libfido2 stops using the ioctl to query the device
vendor/product and just assumes "OpenBSD" "fido(4)" instead. The
ioctl is still supported but there was no benefit in obtaining the
vendor product or name; it also allows to use libfido2 under pledge.
With feedback from deraadt@ and many others
OK kettenis@ djm@ and jmc@ for the manpage bits
Diffstat (limited to 'sys/arch/amd64/conf')
| -rw-r--r-- | sys/arch/amd64/conf/GENERIC | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/arch/amd64/conf/GENERIC b/sys/arch/amd64/conf/GENERIC index 64d390905d9..17e88a9eb51 100644 --- a/sys/arch/amd64/conf/GENERIC +++ b/sys/arch/amd64/conf/GENERIC @@ -1,4 +1,4 @@ -# $OpenBSD: GENERIC,v 1.482 2019/12/08 12:27:25 mpi Exp $ +# $OpenBSD: GENERIC,v 1.483 2019/12/17 13:08:54 reyk Exp $ # # For further information on compiling OpenBSD kernels, see the config(8) # man page. @@ -280,6 +280,7 @@ ucom* at ucycom? uslhcom* at uhidev? # Silicon Labs CP2110 USB HID UART ucom* at uslhcom? uhid* at uhidev? # USB generic HID support +fido* at uhidev? # FIDO/U2F security key support upd* at uhidev? # USB Power Devices sensors aue* at uhub? # ADMtek AN986 Pegasus Ethernet atu* at uhub? # Atmel AT76c50x based 802.11b |