35 lines
676 B
Go
35 lines
676 B
Go
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package gateway
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import (
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"net"
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"os/exec"
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)
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func DiscoverGateway() (ip net.IP, iface string, err error) {
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ip, iface, err = discoverGatewayUsingRoute()
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if err != nil {
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ip, iface, err = discoverGatewayUsingIp()
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}
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return
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}
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func discoverGatewayUsingIp() (net.IP, string, error) {
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routeCmd := exec.Command("ip", "route", "show")
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output, err := routeCmd.CombinedOutput()
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if err != nil {
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return nil, "", err
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}
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return parseLinuxIPRoute(output)
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}
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func discoverGatewayUsingRoute() (net.IP, string, error) {
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routeCmd := exec.Command("route", "-n")
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output, err := routeCmd.CombinedOutput()
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if err != nil {
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return nil, "", err
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}
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return parseLinuxRoute(output)
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}
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