Am Montag, 12. Dezember 2016, 19:47:00 CET schrieb Krzysztof Opasiak: > > On 12/12/2016 04:40 PM, Fabian Vogt wrote: > > Hi, > > > > (sorry for the missing message ID, I wasn't subscribed to this list > > beforehand so I did not get the original message) > > > > On Fri, Dec 09, 2016 at 12:38:23AM +0100, Andrey Konovalov wrote: > >> Hi, > >> > >> I'm working on a way to extend syzkaller [1] to support fuzzing of the > >> USB subsystem. The idea is to be able to emulate various USB devices > >> and fuzz communication between the emulated device and the kernel. I'm > >> looking for a way to emulate devices from userspace. Similar to how > >> tuntap allows to create virtual network interfaces and emit ethernet > >> traffic by writing to /dev/net/tun. > > > > FYI: > > > > I've started working on a similiar project a week ago, although it's > > structured a bit differently. It's made so that a USB gadget device > > is used to fuzz arbitrary USB hosts. > > > > On the one side, it uses the usbredir protocol that is used by > > vUSBf (https://github.com/schumilo/vUSBf) and on the other side it > > uses usb_gadget configfs (libcomposite) + usb functionfs for the > > gadget. > > > > This means it can also be used to forward a physical USB device over > > network to a physical USB host, which makes it useful beyond > > fuzzing as well. > > That's already implemented and called vUDC;) Oh well, I completely misunderstood its purpose. I thought it was just the implementation detail of using USB/IP devices on the local host. Anyway, it does not talk usbredir and it's not in userspace, so my work isn't totally pointless. If you can point me to a translator of usbredir to usbip or something equivalent, I can take the next week off ;-) Thanks for telling, Fabian > > Best regards, > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
