do not remove link local route on ovn0 (kubeovn#2341)

zhangzujian · zhangzujian · commit 9db146c0fbee · 2023-02-15T20:32:01.000+08:00
diff --git a/pkg/daemon/controller.go b/pkg/daemon/controller.go
@@ -623,7 +623,7 @@ func getNicExistRoutes(nic netlink.Link, gateway string) ([]netlink.Route, error
 
 func routeDiff(existRoutes []netlink.Route, cidrs []string) (toAdd []string, toDel []string) {
 	for _, route := range existRoutes {
-		if route.Scope == netlink.SCOPE_LINK {
+		if route.Scope == netlink.SCOPE_LINK || route.Dst == nil || route.Dst.IP.IsLinkLocalUnicast() {
 			continue
 		}
 

Original file line number	Diff line number	Diff line change
`@@ -623,7 +623,7 @@ func getNicExistRoutes(nic netlink.Link, gateway string) ([]netlink.Route, error`
`623`	`623`
`624`	`624`	`func routeDiff(existRoutes []netlink.Route, cidrs []string) (toAdd []string, toDel []string) {`
`625`	`625`	`for _, route := range existRoutes {`
`626`		`- if route.Scope == netlink.SCOPE_LINK {`
	`626`	`+ if route.Scope == netlink.SCOPE_LINK \|\| route.Dst == nil \|\| route.Dst.IP.IsLinkLocalUnicast() {`
`627`	`627`	`continue`
`628`	`628`	`}`
`629`	`629`