Some paths already didn't. And in the future I hope to shut all the
notify funcs down end-to-end when nothing is connected (as in the
common case in tailscaled). Then we can save some JSON encoding work.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
With this change, all OSes can sort-of do split DNS, except that the
default upstream is hardcoded to 8.8.8.8 pending further plumbing.
Additionally, Windows 8-10 can do split DNS fully correctly, without
the 8.8.8.8 hack.
Part of #953.
Signed-off-by: David Anderson <danderson@tailscale.com>
We already had SetNotifyCallback elsewhere on controlclient, so use
that name.
Baby steps towards some CLI refactor work.
Updates tailscale/tailscale#1436
The common Linux start-up path (fallback file defined but not
existing) was missing the log print of initializing Prefs. The code
was too twisty. Simplify a bit.
Updates #1573
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
It's currently unused, and no longer makes sense with the upcoming
DNS infrastructure. Keep it in tailcfg for now, since we need protocol
compat for a bit longer.
Signed-off-by: David Anderson <danderson@tailscale.com>
The resolver still only supports a single upstream config, and
ipn/wgengine still have to split up the DNS config, but this moves
closer to unifying the DNS configs.
As a handy side-effect of the refactor, IPv6 MagicDNS records exist
now.
Signed-off-by: David Anderson <danderson@tailscale.com>
This adds a new ipn.MaskedPrefs embedding a ipn.Prefs, along with a
bunch of "has bits", kept in sync with tests & reflect.
Then it adds a Prefs.ApplyEdits(MaskedPrefs) method.
Then the ipn.Backend interface loses its weirdo SetWantRunning(bool)
method (that I added in 483141094c for "tailscale down")
and replaces it with EditPrefs (alongside the existing SetPrefs for now).
Then updates 'tailscale down' to use EditPrefs instead of SetWantRunning.
In the future, we can use this to do more interesting things with the
CLI, reconfiguring only certain properties without the reset-the-world
"tailscale up".
Updates #1436
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We were going to remove this in Tailscale 1.3 but forgot.
This means Tailscale 1.8 users won't be able to downgrade to Tailscale
1.0, but that's fine.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Instead of having the CLI check whether IP forwarding is enabled, ask
tailscaled. It has a better idea. If it's netstack, for instance, the
sysctl values don't matter. And it's possible that only the daemon has
permission to know.
Fixes#1626
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
For discovery when an explicit hostname/IP is known. We'll still
also send it via control for finding peers by a list.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
IPv4 and IPv6 both work remotely, but IPv6 doesn't yet work from the
machine itself due to routing mysteries.
Untested yet on iOS, but previous prototype worked on iOS, so should
work the same.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
