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v1.61.0-pre

v1.63.0-pre

v1.65.0-pre

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v1.71.0-pre

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v1.75.0-pre

Commit Graph

Author	SHA1	Message	Date
Josh Bleecher Snyder	6e8328cba5	wgengine/tsdns: replace connections when net link changes (macOS) When the network link changes, existing UDP sockets fail immediately and permanently on macOS. The forwarder set up a single UDP conn and never changed it. As a result, any time there was a network link change, all forwarded DNS queries failed. To fix this, create a new connection when send requests fail because of network unreachability. This change is darwin-only, although extended it to other platforms should be straightforward. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago

Author

SHA1

Message

Date

Josh Bleecher Snyder

6e8328cba5

wgengine/tsdns: replace connections when net link changes (macOS)

When the network link changes, existing UDP sockets fail immediately
and permanently on macOS.

The forwarder set up a single UDP conn and never changed it.
As a result, any time there was a network link change,
all forwarded DNS queries failed.

To fix this, create a new connection when send requests
fail because of network unreachability.

This change is darwin-only, although extended it to other platforms
should be straightforward.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>

1 Commits (43b30e463c1f7d9b10ac1897cdbcb85093cbf67b)