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7330aa593e
On some platforms (notably macOS and iOS) we look up the default interface to bind outgoing connections to. This is both duplicated work and results in logspam when the default interface is not available (i.e. when a phone has no connectivity, we log an error and thus cause more things that we will try to upload and fail). Fixed by passing around a netmon.Monitor to more places, so that we can use its cached interface state. Fixes #7850 Updates #7621 Signed-off-by: Mihai Parparita <mihai@tailscale.com>
27 lines
582 B
Go
27 lines
582 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build ts_macext && (darwin || ios)
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package resolver
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import (
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"errors"
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"net"
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"tailscale.com/net/netmon"
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"tailscale.com/net/netns"
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)
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func init() {
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initListenConfig = initListenConfigNetworkExtension
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}
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func initListenConfigNetworkExtension(nc *net.ListenConfig, netMon *netmon.Monitor, tunName string) error {
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nif, ok := netMon.InterfaceState().Interface[tunName]
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if !ok {
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return errors.New("utun not found")
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}
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return netns.SetListenConfigInterfaceIndex(nc, nif.Interface.Index)
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}
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