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package ovn
import (
"encoding/json"
"fmt"
"math/big"
"math/rand"
"net"
logf "sigs.k8s.io/controller-runtime/pkg/runtime/log"
"time"
)
var log = logf.Log.WithName("ovn")
func parseOvnNetworkObject(ovnnetwork string) ([]map[string]interface{}, error) {
var ovnNet []map[string]interface{}
if ovnnetwork == "" {
return nil, fmt.Errorf("parseOvnNetworkObject:error")
}
if err := json.Unmarshal([]byte(ovnnetwork), &ovnNet); err != nil {
return nil, fmt.Errorf("parseOvnNetworkObject: failed to load ovn network err: %v | ovn network: %v", err, ovnnetwork)
}
return ovnNet, nil
}
func setupDistributedRouter(name string) error {
// Create a single common distributed router for the cluster.
stdout, stderr, err := RunOVNNbctl("--", "--may-exist", "lr-add", name, "--", "set", "logical_router", name, "external_ids:ovn4nfv-cluster-router=yes")
if err != nil {
log.Error(err, "Failed to create a single common distributed router for the cluster", "stdout", stdout, "stderr", stderr)
return err
}
// Create a logical switch called "ovn4nfv-join" that will be used to connect gateway routers to the distributed router.
// The "ovn4nfv-join" will be allocated IP addresses in the range 100.64.1.0/24.
stdout, stderr, err = RunOVNNbctl("--may-exist", "ls-add", "ovn4nfv-join")
if err != nil {
log.Error(err, "Failed to create logical switch called \"ovn4nfv-join\"", "stdout", stdout, "stderr", stderr)
return err
}
// Connect the distributed router to "ovn4nfv-join".
routerMac, stderr, err := RunOVNNbctl("--if-exist", "get", "logical_router_port", "rtoj-"+name, "mac")
if err != nil {
log.Error(err, "Failed to get logical router port rtoj-", "name", name, "stdout", stdout, "stderr", stderr)
return err
}
if routerMac == "" {
routerMac = generateMac()
stdout, stderr, err = RunOVNNbctl("--", "--may-exist", "lrp-add", name, "rtoj-"+name, routerMac, "100.64.1.1/24", "--", "set", "logical_router_port", "rtoj-"+name, "external_ids:connect_to_ovn4nfvjoin=yes")
if err != nil {
log.Error(err, "Failed to add logical router port rtoj", "name", name, "stdout", stdout, "stderr", stderr)
return err
}
}
// Connect the switch "ovn4nfv-join" to the router.
stdout, stderr, err = RunOVNNbctl("--", "--may-exist", "lsp-add", "ovn4nfv-join", "jtor-"+name, "--", "set", "logical_switch_port", "jtor-"+name, "type=router", "options:router-port=rtoj-"+name, "addresses="+"\""+routerMac+"\"")
if err != nil {
log.Error(err, "Failed to add logical switch port to logical router", "stdout", stdout, "stderr", stderr)
return err
}
return nil
}
// generateMac generates mac address.
func generateMac() string {
prefix := "00:00:00"
newRand := rand.New(rand.NewSource(time.Now().UnixNano()))
mac := fmt.Sprintf("%s:%02x:%02x:%02x", prefix, newRand.Intn(255), newRand.Intn(255), newRand.Intn(255))
return mac
}
// NextIP returns IP incremented by 1
func NextIP(ip net.IP) net.IP {
i := ipToInt(ip)
return intToIP(i.Add(i, big.NewInt(1)))
}
func ipToInt(ip net.IP) *big.Int {
if v := ip.To4(); v != nil {
return big.NewInt(0).SetBytes(v)
}
return big.NewInt(0).SetBytes(ip.To16())
}
func intToIP(i *big.Int) net.IP {
return net.IP(i.Bytes())
}
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