Hi,
Alex Coventry wrote (06 Mar 2015 17:25:50 GMT) :
> ** Guest overview
> - Virtualbox VM running barebones debian with the same window manager
> as tails. Constructed using debian live.
> - Does not share clipboard through vbox at all.
> - Shares the ~/.tor-browser, ~/.mozilla, "~/{,Persistence/}Tor Browser"
> directories with the host as Virtualbox shared folders.
> - Does not share the tor browser binary/libraries with the host, but
> they can be essentially the same as in tails, using the host tor
> daemon via ports 9050/9051.
> - When the guest wm is ready to start a browser, drops a file in a
> shared folder to indicate this to the host.
> - A guest daemon watches the guest [[
> http://www.pygtk.org/pygtk2reference/class-gtkclipboard.html][clipboard]]
> for changes and saves
> them to a file in a shared folder.
Sounds plausible. Has it been tested?
> ** Host overview
> - Guest is run on a host-only network. Ports 9050/9051 are forwarded
> over iptables or something similar.
> - Guest boots from a virtual optical disk so it's the same code
> starting every time.
> - Guest VM is displayed using virtualbox's seamless mode, so that its
> browser windows appear in standalone windows on the host desktop.
> - Host checks for hardware virtualization support by running "sudo
> modprobe kvm_{intel,amd}, and checking dmesg output for "kvm: no
> hardware support" or "kvm: disabled by bios." If it finds either
> of these messages, warns user on browser start that it's
> downgrading to unvirtualized browser, and everything runs the way
> it does now.
> - Host also checks whether it's running under virtualization with
> "/usr/sbin/dmidecode -s system-product-name". If it is, check
> whether any CPU flags in /proc/cpuinfo suggest support for nested
> virtualization, and if not, same warning.
> - Otherwise, all browser defaults are set to a script which
> 1) starts the guest VM if it's not already up, removing any stale
> indication that the guest is ready to start a browser,
> 2) waits for indication from the guest that it's ready to start a
> browser, and starts one with the supplied CL arguments, using
> VboxManage guestcontrol
> - Host has up and down buttons in the task bar which transfer the
> contents of the clipboard from guest to host and vice versa.
OK, sounds plausible as well. I'd love to see a proof-of-concept.
> **** Could the guest be tails?
> If you disabled the firewall and greeter, you could possibly use the
> tails image itself for the guest, which would save a little space.
> I think that has potential for confusion, though. Probably best to
> make it the minimal image needed to get the job done.
This has been looked into by David Wolinsky already, IIRC.
You'll find the discussion in the ML archive.
Cheers!
--
intrigeri
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