mirror of
https://github.com/gravitl/netmaker.git
synced 2024-09-24 09:16:05 +08:00
69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
package local
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import (
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//"github.com/davecgh/go-spew/spew"
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"fmt"
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"net"
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"strings"
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"github.com/c-robinson/iplib"
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"github.com/gravitl/netmaker/logger"
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"github.com/gravitl/netmaker/netclient/ncutils"
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)
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// GetDefaultRoute - Gets the default route (ip and interface) on a linux machine
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func GetDefaultRoute() (string, string, error) {
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var ipaddr string
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var iface string
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var err error
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output, err := ncutils.RunCmd("ip route show default", false)
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if err != nil {
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return ipaddr, iface, err
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}
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outputSlice := strings.Split(output, " ")
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if !strings.Contains(outputSlice[0], "default") {
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return ipaddr, iface, fmt.Errorf("could not find default gateway")
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}
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for i, outString := range outputSlice {
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if outString == "via" {
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ipaddr = outputSlice[i+1]
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}
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if outString == "dev" {
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iface = outputSlice[i+1]
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}
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}
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return ipaddr, iface, err
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}
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func setRoute(iface string, addr *net.IPNet, address string) error {
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out, err := ncutils.RunCmd(fmt.Sprintf("ip route get %s", addr.IP.String()), false)
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if err != nil || !strings.Contains(out, iface) {
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_, err = ncutils.RunCmd(fmt.Sprintf("ip route add %s dev %s", addr.String(), iface), false)
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}
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return err
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}
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func deleteRoute(iface string, addr *net.IPNet, address string) error {
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var err error
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out, _ := ncutils.RunCmd(fmt.Sprintf("ip route get %s", addr.IP.String()), false)
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if strings.Contains(out, iface) {
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_, err = ncutils.RunCmd(fmt.Sprintf("ip route del %s dev %s", addr.String(), iface), false)
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}
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return err
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}
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func setCidr(iface, address string, addr *net.IPNet) {
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if iplib.Version(addr.IP) == 4 {
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ncutils.RunCmd("ip -4 route add "+addr.String()+" dev "+iface, false)
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} else if iplib.Version(addr.IP) == 6 {
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ncutils.RunCmd("ip -6 route add "+addr.String()+" dev "+iface, false)
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} else {
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logger.Log(1, "could not parse address: "+addr.String())
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}
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}
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func removeCidr(iface string, addr *net.IPNet, address string) {
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ncutils.RunCmd("ip route delete "+addr.String()+" dev "+iface, false)
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}
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