mirror of
https://github.com/gravitl/netmaker.git
synced 2024-09-24 01:06:05 +08:00
75 lines
2.2 KiB
Go
75 lines
2.2 KiB
Go
package local
|
|
|
|
import (
|
|
//"github.com/davecgh/go-spew/spew"
|
|
|
|
"fmt"
|
|
"net"
|
|
"strings"
|
|
|
|
"github.com/c-robinson/iplib"
|
|
"github.com/gravitl/netmaker/logger"
|
|
"github.com/gravitl/netmaker/netclient/ncutils"
|
|
)
|
|
|
|
// GetDefaultRoute - Gets the default route (ip and interface) on a linux machine
|
|
func GetDefaultRoute() (string, string, error) {
|
|
var ipaddr string
|
|
var iface string
|
|
var err error
|
|
output, err := ncutils.RunCmd("ip route show default", false)
|
|
if err != nil {
|
|
return ipaddr, iface, err
|
|
}
|
|
outputSlice := strings.Split(output, " ")
|
|
if !strings.Contains(outputSlice[0], "default") {
|
|
return ipaddr, iface, fmt.Errorf("could not find default gateway")
|
|
}
|
|
for i, outString := range outputSlice {
|
|
if outString == "via" {
|
|
ipaddr = outputSlice[i+1]
|
|
}
|
|
if outString == "dev" {
|
|
iface = outputSlice[i+1]
|
|
}
|
|
}
|
|
return ipaddr, iface, err
|
|
}
|
|
|
|
func setRoute(iface string, addr *net.IPNet, address string) error {
|
|
out, err := ncutils.RunCmd(fmt.Sprintf("ip route get %s", addr.IP.String()), false)
|
|
if err != nil || !strings.Contains(out, iface) {
|
|
_, err = ncutils.RunCmd(fmt.Sprintf("ip route add %s dev %s", addr.String(), iface), false)
|
|
}
|
|
return err
|
|
}
|
|
|
|
// SetExplicitRoute - sets route via explicit ip address
|
|
func SetExplicitRoute(iface string, destination *net.IPNet, gateway string) error {
|
|
_, err := ncutils.RunCmd(fmt.Sprintf("ip route add %s via %s dev %s", destination.String(), gateway, iface), false)
|
|
return err
|
|
}
|
|
|
|
func deleteRoute(iface string, addr *net.IPNet, address string) error {
|
|
var err error
|
|
out, _ := ncutils.RunCmd(fmt.Sprintf("ip route get %s", addr.IP.String()), false)
|
|
if strings.Contains(out, iface) {
|
|
_, err = ncutils.RunCmd(fmt.Sprintf("ip route del %s dev %s", addr.String(), iface), false)
|
|
}
|
|
return err
|
|
}
|
|
|
|
func setCidr(iface, address string, addr *net.IPNet) {
|
|
if iplib.Version(addr.IP) == 4 {
|
|
ncutils.RunCmd("ip -4 route add "+addr.String()+" dev "+iface, false)
|
|
} else if iplib.Version(addr.IP) == 6 {
|
|
ncutils.RunCmd("ip -6 route add "+addr.String()+" dev "+iface, false)
|
|
} else {
|
|
logger.Log(1, "could not parse address: "+addr.String())
|
|
}
|
|
}
|
|
|
|
func removeCidr(iface string, addr *net.IPNet, address string) {
|
|
ncutils.RunCmd("ip route delete "+addr.String()+" dev "+iface, false)
|
|
}
|