adding gwipaddress features in network annotation

- check defautgateway is true only for one network
- first network with defautgateway is only configured, rest is ignored
- add node network and ovn4nfv0-* route info for eth0 interface

Signed-off-by: Kuralamudhan Ramakrishnan <kuralamudhan.ramakrishnan@intel.com>
Change-Id: I078dee22627b2fa92e34b6cc4fa2ec7c8cd58220

1 files changed, 18 insertions, 0 deletions

diff --git a/internal/pkg/network/iface.go b/internal/pkg/network/iface.go
index b2a57bd..d49566d 100644
--- a/internal/pkg/network/iface.go
+++ b/internal/pkg/network/iface.go
@@ -27,6 +27,24 @@ func GetDefaultGateway() (string, error) {
 	return "", errors.New("Unable to find default route")
 }
 
+//CheckRoute return bool isPresent
+func CheckRoute(dst, gw string) (bool, error) {
+	var isPresent bool
+	routes, err := netlink.RouteList(nil, syscall.AF_INET)
+	if err != nil {
+		return isPresent, err
+	}
+
+	for _, route := range routes {
+		if route.Dst.String() == dst && route.Gw.To4().String() == gw {
+			isPresent = true
+		}
+	}
+
+	return isPresent, nil
+
+}
+
 // GetDefaultGatewayInterface return default gateway interface link
 func GetDefaultGatewayInterface() (*net.Interface, error) {
 	routes, err := netlink.RouteList(nil, syscall.AF_INET)