config: write vlan network interface

* Add vlan_id and vlan_raw_device fields to the Interface api type
* Write to the network config the vlan specific properties for vlan
  interface type
* Add several tests to verify the functionally

Signed-off-by: Stefan Lendl <s.lendl@proxmox.com>
Tested-by: Lukas Wagner <l.wagner@proxmox.com>
Reviewed-by: Lukas Wagner <l.wagner@proxmox.com>
Tested-by: Folke Gleumes <f.gleumes@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

pbs-api-types/src/network.rs

@@ -224,6 +224,15 @@ pub const NETWORK_INTERFACE_LIST_SCHEMA: Schema =
             schema: NETWORK_INTERFACE_ARRAY_SCHEMA,
             optional: true,
         },
+        "vlan-id": {
+            description: "VLAN ID.",
+            type: u16,
+            optional: true,
+        },
+        "vlan-raw-device": {
+            schema: NETWORK_INTERFACE_NAME_SCHEMA,
+            optional: true,
+        },
         bond_mode: {
             type: LinuxBondMode,
             optional: true,
@@ -287,6 +296,12 @@ pub struct Interface {
     /// Enable bridge vlan support.
     #[serde(skip_serializing_if = "Option::is_none")]
     pub bridge_vlan_aware: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "vlan-id")]
+    pub vlan_id: Option<u16>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "vlan-raw-device")]
+    pub vlan_raw_device: Option<String>,
 
     #[serde(skip_serializing_if = "Option::is_none")]
     pub slaves: Option<Vec<String>>,
@@ -319,6 +334,8 @@ impl Interface {
             mtu: None,
             bridge_ports: None,
             bridge_vlan_aware: None,
+            vlan_id: None,
+            vlan_raw_device: None,
             slaves: None,
             bond_mode: None,
             bond_primary: None,

pbs-config/src/network/mod.rs

@@ -79,6 +79,14 @@ fn write_iface_attributes(iface: &Interface, w: &mut dyn Write) -> Result<(), Er
                 writeln!(w, "\tbond-slaves {}", slaves.join(" "))?;
             }
         }
+        NetworkInterfaceType::Vlan => {
+            if let Some(vlan_id) = iface.vlan_id {
+                writeln!(w, "\tvlan-id {vlan_id}")?;
+            }
+            if let Some(vlan_raw_device) = &iface.vlan_raw_device {
+                writeln!(w, "\tvlan-raw-device {vlan_raw_device}")?;
+            }
+        }
         _ => {}
     }
 
@@ -580,4 +588,68 @@ iface enp3s0 inet static
             .trim()
         );
     }
+
+    #[test]
+    fn test_write_network_config_vlan_id_in_name() {
+        let iface_name = String::from("vmbr0.100");
+        let mut iface = Interface::new(iface_name.clone());
+        iface.interface_type = Vlan;
+        iface.method = Some(Manual);
+        iface.active = true;
+
+        let nw_config = NetworkConfig {
+            interfaces: BTreeMap::from([(iface_name.clone(), iface)]),
+            order: vec![Iface(iface_name.clone())],
+        };
+        assert_eq!(
+            String::try_from(nw_config).unwrap().trim(),
+            "iface vmbr0.100 inet manual"
+        );
+    }
+
+    #[test]
+    fn test_write_network_config_vlan_with_raw_device() {
+        let iface_name = String::from("vlan100");
+        let mut iface = Interface::new(iface_name.clone());
+        iface.interface_type = Vlan;
+        iface.vlan_raw_device = Some(String::from("vmbr0"));
+        iface.method = Some(Manual);
+        iface.active = true;
+
+        let nw_config = NetworkConfig {
+            interfaces: BTreeMap::from([(iface_name.clone(), iface)]),
+            order: vec![Iface(iface_name.clone())],
+        };
+        assert_eq!(
+            String::try_from(nw_config).unwrap().trim(),
+            r#"
+iface vlan100 inet manual
+	vlan-raw-device vmbr0"#
+                .trim()
+        );
+    }
+
+    #[test]
+    fn test_write_network_config_vlan_with_individual_name() {
+        let iface_name = String::from("individual_name");
+        let mut iface = Interface::new(iface_name.clone());
+        iface.interface_type = Vlan;
+        iface.vlan_raw_device = Some(String::from("vmbr0"));
+        iface.vlan_id = Some(100);
+        iface.method = Some(Manual);
+        iface.active = true;
+
+        let nw_config = NetworkConfig {
+            interfaces: BTreeMap::from([(iface_name.clone(), iface)]),
+            order: vec![Iface(iface_name.clone())],
+        };
+        assert_eq!(
+            String::try_from(nw_config).unwrap().trim(),
+            r#"
+iface individual_name inet manual
+	vlan-id 100
+	vlan-raw-device vmbr0"#
+                .trim()
+        );
+    }
 }