Commit Graph

975 Commits

Author SHA1 Message Date
Brad Fitzpatrick
3fa58303d0 netcheck: address some HTTP fallback measurement TODOs 2020-05-29 13:34:09 -07:00
Brad Fitzpatrick
7247e896b5 net/netcheck: add Report.IPv4 and another TODO 2020-05-29 12:41:30 -07:00
David Anderson
e9f7d01b91 derp/derphttp: make DERP client use netns for dial-outs. 2020-05-28 23:48:08 +00:00
Brad Fitzpatrick
9e3ad4f79f net/netns: add package for start of network namespace support
And plumb in netcheck STUN packets.

TODO: derphttp, logs, control.

Updates #144

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-05-28 16:20:16 -07:00
Brad Fitzpatrick
0245bbe97b Make netcheck handle v6-only interfaces better, faster.
Also:

* add -verbose flag to cmd/tailscale netcheck
* remove some API from the interfaces package
* convert some of the interfaces package to netaddr.IP
* don't even send IPv4 probes on machines with no IPv4 (or only v4
  loopback)
* and once three regions have replied, stop waiting for other probes
  at 2x the slowest duration.

Updates #376
2020-05-28 10:04:20 -07:00
Avery Pennarun
7cd9ff3dde net/netcheck: fix race condition initializting RegionLatency maps.
Under some conditions, code would try to look things up in the maps
before the first call to updateLatency. I don't see any reason to delay
initialization of the maps, so let's just init them right away when
creating the Report instance.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
2020-05-28 03:41:37 -04:00
Brad Fitzpatrick
b0c10fa610 stun, netcheck: move under net 2020-05-25 09:18:24 -07:00
David Anderson
657f331e8b net/dnscache: remove unnecessary lint warning. 2020-04-30 20:31:44 -07:00
Elias Naur
ad0795efc2 net/dnscache: don't use the Go resolver on Android
The local resolver is not available for apps on Android.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
2020-04-27 12:04:39 -07:00
Brad Fitzpatrick
2244cca5ff net/tlsdial: update package doc to say it's now somewhat useless 2020-04-27 08:17:18 -07:00
Brad Fitzpatrick
172d72a060 Revert "net/tlsdial: add memory-optimized TLS cert verification path for iOS"
This reverts commit 6fcbd4c4d4.

Decided to put it in tailscale/go's crypto/x509 instead.
2020-04-27 08:13:37 -07:00
Brad Fitzpatrick
6fcbd4c4d4 net/tlsdial: add memory-optimized TLS cert verification path for iOS
Behind a build tag for now.
2020-04-25 13:55:51 -07:00
Brad Fitzpatrick
b6fa5a69be net/tlsdial: add package for TLS dials, and make DERP & controlclient use it
This will do the iOS-optimized cert checking in a following change.
2020-04-25 13:24:53 -07:00
Brad Fitzpatrick
c0697e1feb net/interfaces: add IsExpensive and up state to State
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-04-10 20:25:12 -07:00
Brad Fitzpatrick
a4ef345737 cmd/tailscale: add status subcommand
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-03-27 20:34:36 -07:00
David Anderson
315a5e5355 scripts: add a license header checker.
Signed-off-by: David Anderson <dave@natulte.net>
2020-03-17 21:34:44 -07:00
David Crawshaw
41ac4a79d6 net/nettest: new package with net-like testing primitives
This is a lot like wiring up a local UDP socket, read and write
deadlines work. The big difference is the Block feature, which
lets you stop the packet flow without breaking the connection.
This lets you emulate broken sockets and test timeouts actually
work.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2020-03-12 14:42:48 -04:00
Brad Fitzpatrick
023df9239e Move linkstate boring change filtering to magicsock
So we can at least re-STUN on boring updates.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-03-10 12:50:03 -07:00
Brad Fitzpatrick
5c1e443d34 wgengine/monitor: don't call LinkChange when interfaces look unchanged
Basically, don't trust the OS-level link monitor to only tell you
interesting things. Sanity check it.

Also, move the interfaces package into the net directory now that we
have it.
2020-03-10 11:03:19 -07:00
Brad Fitzpatrick
bd0e20f351 net/dnscache: ignore annoying staticcheck check 2020-03-09 22:12:22 -07:00
Brad Fitzpatrick
d44325295e net/dnscache: initialize the single Resolver more directly 2020-03-09 21:05:01 -07:00
David Crawshaw
cac68fe102 net/dnscache: do not PreferGo on macOS/iOS
With this commit my iPhone can now DERP.
2020-03-09 14:20:09 -04:00
Brad Fitzpatrick
8f0fd01efd net/dnscache: add copyright header to test 2020-03-09 11:07:31 -07:00
David Crawshaw
5a1ce4adae net/dnscache: parse passed CIDR
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2020-03-09 13:11:35 -04:00
Brad Fitzpatrick
2cff9016e4 net/dnscache: add overly simplistic DNS cache package for selective use
I started to write a full DNS caching resolver and I realized it was
overkill and wouldn't work on Windows even in Go 1.14 yet, so I'm
doing this tiny one instead for now, just for all our netcheck STUN
derp lookups, and connections to DERP servers. (This will be caching a
exactly 8 DNS entries, all ours.)

Fixes #145 (can be better later, of course)
2020-03-05 12:23:37 -08:00