On Tue, May 29, 2018 at 09:34:35PM -0500, Eric W. Biederman wrote: > Dave Chinner <david@xxxxxxxxxxxxx> writes: > > > Yeah, the are some fairly big process and policy things that > > need to be decided here. Not just at the kernel level, but at > > distro and app infrastructure level too. > > > > I was originally sceptical of supporting kernel filesystems via > > lkl, but the desire for unprivileged mounts has not gone away > > and so I'm less worried about accessing filesystems that way > > than I am of letting the kernel parse untrusted images from > > untrusted users... > > There is also the more readily available libguestfs which doesn't > support as many filesystems but does seem available in most linux > distributions already. It already has a fuse option available > with guestmount. I may have to dig in there and see how to make > it available without using fusermount. That only provides host access to filesystems mounted inside guest VMs, right? AFAIA, libguestfs is not providing a FUSE implementation that mounts and parses raw XFS images. e.g it barely understands anything XFS, and that which it does is via running and screen-scraping the output of XFS's userspace management tools... > > I'm not sure what the correct forum for this is - wasn't this > > something the Plumbers conference was supposed to facilitate? > > Yes. If we all need to be in a room and talk about things. > It is early enough in the planning for Plumers that we could > definitely schedule a talk or a BOF for this. Ok. I have no idea if I'll be at plumbers - it's an awful long way from where I am.... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx
