policy: add nexthop unchanged

Support config set-next-hop = "unchanged" and also cli command.

Signed-off-by: Faicker Mo <faicker.mo@ucloud.cn>

1 files changed, 8 insertions, 0 deletions

diff --git a/pkg/server/grpc_server.go b/pkg/server/grpc_server.go
index a057d6ae..89bbb497 100644
--- a/pkg/server/grpc_server.go
+++ b/pkg/server/grpc_server.go
@@ -1167,6 +1167,11 @@ func toStatementApi(s *config.Statement) *api.Statement {
 					Self: true,
 				}
 			}
+			if string(s.Actions.BgpActions.SetNextHop) == "unchanged" {
+				return &api.NexthopAction{
+					Unchanged: true,
+				}
+			}
 			return &api.NexthopAction{
 				Address: string(s.Actions.BgpActions.SetNextHop),
 			}
@@ -1442,6 +1447,9 @@ func newNexthopActionFromApiStruct(a *api.NexthopAction) (*table.NexthopAction,
 			if a.Self {
 				return "self"
 			}
+			if a.Unchanged {
+				return "unchanged"
+			}
 			return a.Address
 		}(),
 	))