netmaker/netclient/wireguard/unix.go
2021-11-12 13:03:31 -05:00

102 lines
2.4 KiB
Go

package wireguard
import (
"io/ioutil"
"os"
"github.com/gravitl/netmaker/models"
"github.com/gravitl/netmaker/netclient/config"
"github.com/gravitl/netmaker/netclient/ncutils"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
)
// SetWGKeyConfig - sets the wg conf with a new private key
func SetWGKeyConfig(network string, serveraddr string) error {
cfg, err := config.ReadConfig(network)
if err != nil {
return err
}
node := cfg.Node
privatekey, err := wgtypes.GeneratePrivateKey()
if err != nil {
return err
}
privkeystring := privatekey.String()
publickey := privatekey.PublicKey()
node.PublicKey = publickey.String()
err = StorePrivKey(privkeystring, network)
if err != nil {
return err
}
if node.Action == models.NODE_UPDATE_KEY {
node.Action = models.NODE_NOOP
}
err = config.ModConfig(&node)
if err != nil {
return err
}
err = SetWGConfig(network, false)
if err != nil {
return err
}
return err
}
// ApplyWGQuickConf - applies wg-quick commands if os supports
func ApplyWGQuickConf(confPath string) error {
_, _ = ncutils.RunCmd("wg-quick down "+confPath, false)
_, err := ncutils.RunCmd("wg-quick up "+confPath, false)
return err
}
// ApplyWGQuickConf - applies wg-quick commands if os supports
func SyncWGQuickConf(confPath string) error {
var tmpConf = confPath + ".sync.tmp"
conf, err := ncutils.RunCmd("wg-quick strip "+confPath, false)
if err != nil {
return err
}
err = ioutil.WriteFile(tmpConf, []byte(conf), 0644)
if err != nil {
return err
}
_, err = ncutils.RunCmd("wg sync "+confPath, false)
if err != nil {
ncutils.Log("error syncing conf, resetting")
err = ApplyWGQuickConf(confPath)
}
errN := os.Remove(tmpConf)
if errN != nil {
ncutils.Log(errN.Error())
}
return err
}
// RemoveWGQuickConf - calls wg-quick down
func RemoveWGQuickConf(confPath string, printlog bool) error {
_, err := ncutils.RunCmd("wg-quick down "+confPath, printlog)
return err
}
// StorePrivKey - stores wg priv key on disk locally
func StorePrivKey(key string, network string) error {
var err error
d1 := []byte(key)
err = ioutil.WriteFile(ncutils.GetNetclientPathSpecific()+"wgkey-"+network, d1, 0644)
return err
}
// RetrievePrivKey - reads wg priv key from local disk
func RetrievePrivKey(network string) (string, error) {
dat, err := ioutil.ReadFile(ncutils.GetNetclientPathSpecific() + "wgkey-" + network)
return string(dat), err
}