On Donnerstag, 26. September 2019 10:52:08 CEST Oliver Neukum wrote: > Am Donnerstag, den 26.09.2019, 10:14 +0200 schrieb Nicolas Saenz > > Julienne: > > Hi, > > > > [ Added Oliver as he's the most knowlegable with USB ] > > > > > > > SLES doesn't support USB gadget mode AFAIK, so I didn't do anything > > > > > there. > > > > > > > > Hmm, looks like it should be changed, no? > > > > > > SLE has CONFIG_USB_GADGET=n, so doing that would be a rather big change > > > which needs discussion. It's not just a module which can be marked as > > > unsupported. I don't know whether any platform currently supported by > > > SLE even has USB device controllers. > > > > > > Cheers, > > > Fabian > > > > > > Currently SLE has CONFIG_USB_GADGET=n. > > > > I tried to enable CONFIG_USB_GADGET some time ago. IIRC There were some > > concerns that we had nothing to test it on intel boards (some support it, > > but it's rare). On top of that there are security implications to take > > into account. > > Correct. And the security implications make me very nervous. That > direction is not tested or spoofed for security. > > Regards > Oliver
Can someone please outline what these security implications are? 1. Without further configurations from userspace, no endpoints/functions are provided. 2. Contrary to e.g. Firewire and Thunderbolt, USB does not allow Remote DMA, but FW and TB are both enabled. Kind regards, Stefan -- Stefan Brüns / Bergstraße 21 / 52062 Aachen home: +49 241 53809034 mobile: +49 151 50412019
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