tailscale/net/dns/neterr_other.go

// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build !darwin,!windows

package dns

func networkIsDown(err error) bool        { return false }
func networkIsUnreachable(err error) bool { return false }
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> 2020-09-23 13:21:52 -07:00			`// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.`
			`// Use of this source code is governed by a BSD-style`
			`// license that can be found in the LICENSE file.`

ipn, wgengine, magicsock, tsdns: be quieter and less aggressive when offline If no interfaces are up, calm down and stop spamming so much. It was noticed as especially bad on Windows, but probably was bad everywhere. I just have the best network conditions testing on a Windows VM. Updates #604 2020-10-06 15:22:46 -07:00			`// +build !darwin,!windows`
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> 2020-09-23 13:21:52 -07:00
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 14:50:21 -07:00			`package dns`
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> 2020-09-23 13:21:52 -07:00
			`func networkIsDown(err error) bool { return false }`
			`func networkIsUnreachable(err error) bool { return false }`