On Thu, Dec 19, 2019 at 11:49 AM Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote: > > On Thu, Dec 19, 2019 at 11:11 AM Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: > > > > On Thu, Dec 19, 2019 at 11:07 AM Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: > > > > > > On Thu, Dec 19, 2019 at 10:35 AM Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote: > > > That's exciting about syzcaller having at it with WireGuard. Is there > > > some place where I can "see" it fuzzing WireGuard, or do I just wait > > > for the bug reports to come rolling in? > > > > Ahh, found it: https://storage.googleapis.com/syzkaller/cover/ci-upstream-net-kasan-gce.html > > Looks like we're at 1% and counting. :) > > Yes, that's it. But that's mostly stray coverage. > wg_netdevice_notification I guess mostly because it tested _other_ device types. > And a bit of netlink because it sends random garbage into netlink. > > For netlink part it would require something along these lines: > https://github.com/google/syzkaller/blob/master/sys/linux/socket_netlink_generic_devlink.txt > https://github.com/google/syzkaller/blob/master/sys/linux/socket_netlink_crypto.txt > https://github.com/google/syzkaller/blob/master/sys/linux/socket_netlink_generic_fou.txt > https://github.com/google/syzkaller/blob/master/sys/linux/socket_netlink_generic_seg6.txt > > And for device setup, harder to say. Either pre-create one here: > https://github.com/google/syzkaller/blob/79b211f74b08737aeb4934c6ff69a263b3c38013/executor/common_linux.h#L668 > or teach it how to create them on the fly or both or something else. > > Probably some wire packet formats here: > https://github.com/google/syzkaller/blob/79b211f74b08737aeb4934c6ff69a263b3c38013/sys/linux/vnet.txt Ahh, cool, okay. Netlink, device creation, and basic packet structure is a good start. What about the crypto, though?
