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[management, client] Add IPv6 overlay support (#5631)

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This commit is contained in:
Viktor Liu
2026-05-07 18:33:37 +09:00
committed by GitHub
parent f23aaa9ae7
commit 205ebcfda2
229 changed files with 10155 additions and 2816 deletions
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33
client/iface/device/device_darwin.go
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@@ -131,23 +131,32 @@ func (t *TunDevice) Device() *device.Device {
// assignAddr Adds IP address to the tunnel interface and network route based on the range provided
func (t *TunDevice) assignAddr() error {
cmd := exec.Command("ifconfig", t.name, "inet", t.address.IP.String(), t.address.IP.String())
if out, err := cmd.CombinedOutput(); err != nil {
log.Errorf("adding address command '%v' failed with output: %s", cmd.String(), out)
return err
if out, err := exec.Command("ifconfig", t.name, "inet", t.address.IP.String(), t.address.IP.String()).CombinedOutput(); err != nil {
return fmt.Errorf("add v4 address: %s: %w", string(out), err)
}
// dummy ipv6 so routing works
cmd = exec.Command("ifconfig", t.name, "inet6", "fe80::/64")
if out, err := cmd.CombinedOutput(); err != nil {
log.Debugf("adding address command '%v' failed with output: %s", cmd.String(), out)
// Assign a dummy link-local so macOS enables IPv6 on the tun device.
// When a real overlay v6 is present, use that instead.
v6Addr := "fe80::/64"
if t.address.HasIPv6() {
v6Addr = t.address.IPv6String()
}
if out, err := exec.Command("ifconfig", t.name, "inet6", v6Addr).CombinedOutput(); err != nil {
log.Warnf("failed to assign IPv6 address %s, continuing v4-only: %s: %v", v6Addr, string(out), err)
t.address.ClearIPv6()
}
routeCmd := exec.Command("route", "add", "-net", t.address.Network.String(), "-interface", t.name)
if out, err := routeCmd.CombinedOutput(); err != nil {
log.Errorf("adding route command '%v' failed with output: %s", routeCmd.String(), out)
return err
if out, err := exec.Command("route", "add", "-net", t.address.Network.String(), "-interface", t.name).CombinedOutput(); err != nil {
return fmt.Errorf("add route %s via %s: %s: %w", t.address.Network, t.name, string(out), err)
}
if t.address.HasIPv6() {
if out, err := exec.Command("route", "add", "-inet6", "-net", t.address.IPv6Net.String(), "-interface", t.name).CombinedOutput(); err != nil {
log.Warnf("failed to add route %s via %s, continuing v4-only: %s: %v", t.address.IPv6Net, t.name, string(out), err)
t.address.ClearIPv6()
}
}
return nil
}