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When an exit node has been set and a new default route is added, create a new rtable in the default rdomain and add the current default route via its physical interface. When control() is requesting a connection not go through the exit-node default route, we can use the SO_RTABLE socket option to force it through the new rtable we created. Updates #17321 Signed-off-by: joshua stein <jcs@jcs.org>
26 lines
530 B
Go
26 lines
530 B
Go
// Copyright (c) Tailscale Inc & contributors
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// SPDX-License-Identifier: BSD-3-Clause
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// Common code for FreeBSD and OpenBSD.
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// Not used on iOS or macOS. See defaultroute_darwin.go.
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//go:build freebsd || openbsd
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package netmon
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import "net"
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func defaultRoute() (d DefaultRouteDetails, err error) {
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idx, err := DefaultRouteInterfaceIndex()
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if err != nil {
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return d, err
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}
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iface, err := net.InterfaceByIndex(idx)
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if err != nil {
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return d, err
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}
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d.InterfaceName = iface.Name
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d.InterfaceIndex = idx
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return d, nil
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}
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