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81 Commits

Author SHA1 Message Date
David Anderson
b2a597b288 net/dns: rename Set to SetDNS in OSConfigurator. 
wgengine/router.CallbackRouter needs to support both the Router
and OSConfigurator interfaces, so the setters can't both be called
Set.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-05 10:55:35 -07:00
David Anderson
7d84ee6c98 net/dns: unify the OS manager and internal resolver. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-05 10:55:35 -07:00
David Anderson
1bf91c8123 net/dns/resolver: remove unused err return value. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-05 10:55:35 -07:00
David Anderson
6a206fd0fb net/dns: rename impl to os. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-05 10:55:35 -07:00
David Anderson
c4530971db net/dns/resolver: remove leftover debug print. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-05 10:55:35 -07:00
David Anderson
4c61ebacf4 wgengine: move DNS configuration out of wgengine/router. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-05 10:55:35 -07:00
David Anderson
748670f1e9 net/dns: fix typo in docstring. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-02 18:44:02 -07:00
David Anderson
a39d2403bc net/dns: disable NetworkManager and resolved configurators temporarily. 
They need some rework to do the right thing, in the meantime the direct
and resolvconf managers will work out.

The resolved implementation was never selected due to control-side settings.
The networkmanager implementation mostly doesn't get selected due to
unforeseen interactions with `resolvconf` on many platforms.
Both implementations also need rework to support the various routing modes
they're capable of.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-02 02:41:33 -07:00
David Anderson
befd8e4e68 net/dns: replace managerImpl with OSConfigurator in code. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-02 02:34:40 -07:00
David Anderson
077d4dc8c7 net/dns: add an OSConfigurator interface. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-02 01:49:17 -07:00
David Anderson
6ad44f9fdf wgengine: take in dns.Config, split out to resolver.Config and dns.OSConfig. 
Stepping stone towards having the DNS package handle the config splitting.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-02 00:59:44 -07:00
David Anderson
2edb57dbf1 net/dns: add new Config that captures tailscale+OS DNS config. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-02 00:59:44 -07:00
David Anderson
8af9d770cf net/dns: rename Config to OSConfig. 
Making way for a new higher level config struct.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-02 00:59:44 -07:00
David Anderson
fcfc0d3a08 net/dns: remove ManagerConfig, pass relevant args directly. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-01 23:26:52 -07:00
David Anderson
0ca04f1e01 net/dns: put noop.go back, limit with build tags for staticcheck. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-01 23:14:13 -07:00
David Anderson
95470c3448 net/dns: remove Cleanup manager parameter. 
It's only use to skip some optional initialization during cleanup,
but that work is very minor anyway, and about to change drastically.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-01 23:06:56 -07:00
David Anderson
cf361bb9b1 net/dns: remove PerDomain from Config. 
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>
 2021-04-01 22:55:44 -07:00
David Anderson
f77ba75d6c wgengine/router: move DNS cleanup into the DNS package. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-01 22:35:34 -07:00
David Anderson
9f105d3968 net/dns/resolver: teach the forwarder to do per-domain routing. 
Given a DNS route map, the forwarder selects the right set of
upstreams for a given name.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-04-01 19:42:48 -07:00
David Anderson
90f82b6946 net/dns/resolver: add live reconfig, plumb through to ipnlocal. 
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>
 2021-04-01 01:44:03 -07:00
David Anderson
caeafc4a32 net/dns/resolver: fix package docstring. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:42:28 -07:00
David Anderson
dbe4f6f42d net/dns/resolver: unexport Resolve and ResolveReverse. 
They're only used internally and in tests, and have surprising
semantics in that they only resolve MagicDNS names, not upstream
resolver queries.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:35:26 -07:00
David Anderson
cdeb8d6816 net/dns/resolver: fix staticcheck error. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:19:09 -07:00
David Anderson
f185d62dc8 net/dns/resolver: unexport Packet, only use it internally. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:12:31 -07:00
David Anderson
5fb9e00ecf net/dns/resolver: remove Start method, fully spin up in New instead. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:12:31 -07:00
David Anderson
075fb93e69 net/dns/resolver: remove the Config struct. 
In preparation for reintroducing a runtime reconfig Config struct.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:12:31 -07:00
David Anderson
bc81dd4690 net/dns/resolver: rename ResolverConfig to just Config. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:12:31 -07:00
David Anderson
d99f5b1596 net/dns/resolver: factor the resolver out into a sub-package. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-31 23:12:30 -07:00
David Anderson
6521f02ff6 Move DNS flush logic to net/dns. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-25 17:40:52 -07:00
David Anderson
9f7f2af008 wgengine/router/dns: move to net/dns. 
Preparation for merging the APIs and whatnot.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-25 16:25:30 -07:00
David Anderson
8432999835 Move wgengine/tsdns to net/dns. 
Straight move+fixup, no other changes. In prep for merging with
wgengine/router/dns.

Signed-off-by: David Anderson <danderson@tailscale.com>
 2021-03-25 16:25:30 -07:00