Commit Graph

4 Commits (b4cf837d8adc447233bac47e3425d5a3bcda87a5)

Author SHA1 Message Date
Brad Fitzpatrick 471f0c470a wgengine/monitor: skip some macOS route updates, fix debounce regression
Debound was broken way back in 5c1e443d34 and we never noticed.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 31721759f3 wgengine/monitor: don't return nil, nil in darwin monitor
We used to allow that, but now it just crashes.

Separately I need to figure out why it got into this path at all,
which is #1416.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 24fa616e73 wgengine/monitor: make Darwin monitor shut down cleanly, add test
Don't use os.NewFile or (*os.File).Close on the AF_ROUTE socket. It
apparently does weird things to the fd and at least doesn't seem to
close it. Just use the unix package.

The test doesn't actually fail reliably before the fix, though. It
was an attempt. But this fixes the integration tests.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 14dc790137 wgengine/monitor: make the darwin link monitor work in the sandbox too
Previously tailscaled on macOS was running "/sbin/route monitor" as a
child process, but child processes aren't allowed in the Network
Extension / App Store sandbox. Instead, just do what "/sbin/route monitor"
itself does: unix.Socket(unix.AF_ROUTE, unix.SOCK_RAW, 0) and read that.

We also parse it now, but don't do anything with the parsed results yet.

We will over time, as we have with Linux netlink messages over time.

Currently any message is considered a signal to poll and see what changed.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago