Merge pull request #11232 from lifupan/mtu

runtime: add the mtu support for updating routes

src/runtime-rs/crates/agent/src/kata/trans.rs

@@ -230,6 +230,7 @@ impl From<Route> for types::Route {
             scope: from.scope,
             family: protobuf::EnumOrUnknown::new(from.family.into()),
             flags: from.flags,
+            mtu: from.mtu,
             ..Default::default()
         }
     }
@@ -245,6 +246,7 @@ impl From<types::Route> for Route {
             scope: src.scope,
             family: src.family.unwrap().into(),
             flags: src.flags,
+            mtu: src.mtu,
         }
     }
 }

src/runtime-rs/crates/agent/src/types.rs

@@ -114,6 +114,7 @@ pub struct Route {
     pub scope: u32,
     pub family: IPFamily,
     pub flags: u32,
+    pub mtu: u32,
 }
 
 #[derive(Deserialize, Debug, PartialEq, Clone, Default)]

src/runtime-rs/crates/resource/src/network/dan.rs

@@ -292,6 +292,8 @@ pub(crate) struct Route {
     pub scope: u32,
     #[serde(default)]
     pub flags: u32,
+    #[serde(default)]
+    pub mtu: u32,
 }
 
 impl Route {
@@ -369,7 +371,8 @@ mod tests {
                     "source": "172.18.0.1",
                     "gateway": "172.18.31.1",
                     "scope": 0,
-                    "flags": 0
+                    "flags": 0,
+                    "mtu": 1450
                 }],
                 "neighbors": [{
                     "ip_address": "192.168.0.3/16",
@@ -402,6 +405,7 @@ mod tests {
                     gateway: "172.18.31.1".to_owned(),
                     scope: 0,
                     flags: 0,
+                    mtu: 1450,
                 }],
                 neighbors: vec![ARPNeighbor {
                     ip_address: Some("192.168.0.3/16".to_owned()),

src/runtime-rs/crates/resource/src/network/network_info/network_info_from_dan.rs

@@ -75,6 +75,7 @@ impl NetworkInfoFromDan {
                     scope: route.scope,
                     family,
                     flags: route.flags,
+                    mtu: route.mtu,
                 })
             })
             .collect();
@@ -161,6 +162,7 @@ mod tests {
                     gateway: "172.18.31.1".to_owned(),
                     scope: 0,
                     flags: 0,
+                    mtu: 1450,
                 }],
                 neighbors: vec![DanARPNeighbor {
                     ip_address: Some("192.168.0.3/16".to_owned()),
@@ -197,6 +199,7 @@ mod tests {
             scope: 0,
             family: IPFamily::V4,
             flags: 0,
+            mtu: 1450,
         }];
         assert_eq!(routes, network_info.routes().await.unwrap());
 

src/runtime-rs/crates/resource/src/network/network_info/network_info_from_link.rs

@@ -16,7 +16,7 @@ use futures::stream::TryStreamExt;
 use netlink_packet_route::{
     self,
     neighbour::{NeighbourAddress, NeighbourAttribute, NeighbourMessage},
-    route::{RouteAddress, RouteAttribute, RouteMessage},
+    route::{RouteAddress, RouteAttribute, RouteMessage, RouteMetric},
 };
 use rtnetlink::{IpVersion, RouteMessageBuilder};
 
@@ -200,6 +200,14 @@ fn generate_route(name: &str, route_msg: &RouteMessage) -> Result<Option<Route>>
 
                 route.source = dest.to_string();
             }
+            RouteAttribute::Metrics(metrics) => {
+                for m in metrics {
+                    if let RouteMetric::Mtu(mtu) = m {
+                        route.mtu = *mtu;
+                        break;
+                    }
+                }
+            }
             _ => {}
         }
     }