The foundation of this series are the patches from my previous posting
that didn't make it into upstream. But while reworking them, the series
grow far beyond the previous approach, adding lots of fixes and cleanups
to the slirp stack and its interfaces.
One major contribution is that the virtual IP addresses used inside
slirp VLANs are now (almost) freely configurable. This enables
sophisticated virtual network setups, specifically with guests that
depends on specific addresses.
In this second step, the series also comes with support for multiple
slirp instances per VM. Further contributions are
- proper dynamic slirp cleanup during runtime
- 'info usernet' command to dump slirp connection states
- reworked monitor commands hostfwd_add/remove (formerly known as
host_net_redir)
- save/restore fixes for slirp
- first larger code cleanup (more work required...)
- various small fixes
The patches have been successfully tested against basic use cases:
connections to/from the guests, redirections, tftp, multi-instance,
save/restore. Moreover, they also passed successfull build tests
against mingw32.
Regarding the preferred flow: Mark, will you let this go through your
network tree first? Currently the series is based on upstream/master,
but I can rebase if required.