add ttl to ZoneData

easytier/src/dns/config/dns.rs

@@ -26,13 +26,13 @@ pub struct DnsConfig {
     #[derivative(Default(value = "DNS_DEFAULT_TLD.clone()"))]
     pub domain: LowerName,
     #[derivative(Default(value = "vec![DNS_DEFAULT_ADDRESS].into()"))]
-    #[serde(deserialize_with = "DnsConfig::validate_addresses")]
+    #[serde(deserialize_with = "DnsConfig::deserialize_addresses")]
     pub addresses: NameServerAddrGroup,
     pub listeners: NameServerAddrGroup,
 }
 
 impl DnsConfig {
-    pub fn validate_addresses<'de, D>(deserializer: D) -> Result<NameServerAddrGroup, D::Error>
+    pub fn deserialize_addresses<'de, D>(deserializer: D) -> Result<NameServerAddrGroup, D::Error>
     where
         D: Deserializer<'de>,
     {
@@ -82,32 +82,37 @@ impl DnsConfig {
 pub type DnsExportConfig = GetExportConfigResponse;
 
 pub trait DnsGlobalCtxExt {
-    fn dns_self_zone(&self) -> Option<ZoneConfig>;
+    fn dns_self_zone(&self) -> ZoneConfig;
     fn dns_export_config(&self) -> DnsExportConfig;
+    fn dns_iter_zones(&self) -> impl Iterator<Item = ZoneConfig>;
 }
 
 impl DnsGlobalCtxExt for GlobalCtx {
-    fn dns_self_zone(&self) -> Option<ZoneConfig> {
+    fn dns_self_zone(&self) -> ZoneConfig {
         let fqdn = self.config.get_dns().get_fqdn();
         let ipv4 = self.get_ipv4().map(|ip| ip.address());
         let ipv6 = self.get_ipv6().map(|ip| ip.address());
         let ipv6 = ipv6.map(|a| vec![a]).unwrap_or_default();
 
-        ZoneConfig::dedicated(Some(self.get_id()), fqdn.clone(), ipv4, ipv6)
+        ZoneConfig::dedicated(Some(self.get_id()), fqdn.clone(), ipv4, ipv6).unwrap()
     }
 
     fn dns_export_config(&self) -> DnsExportConfig {
-        let config = self.config.get_dns();
-        let zone = self.dns_self_zone();
-        let zones = config.zones.iter().chain(zone.iter());
-
         DnsExportConfig {
-            zones: zones
+            zones: self
+                .dns_iter_zones()
                 .filter(|z| z.policy.export.is_some()) // TODO: check policies of parent zones
-                .cloned()
                 .map_into()
                 .collect(),
-            fqdn: config.get_fqdn().to_string(),
+            fqdn: self.config.get_dns().get_fqdn().to_string(),
         }
     }
+
+    fn dns_iter_zones(&self) -> impl Iterator<Item = ZoneConfig> {
+        self.config
+            .get_dns()
+            .zones
+            .into_iter()
+            .chain(iter::once(self.dns_self_zone()))
+    }
 }

easytier/src/dns/config/zone.rs

@@ -39,7 +39,7 @@ impl ZoneConfig {
         origin: LowerName,
         ipv4: Option<Ipv4Addr>,
         ipv6: Vec<Ipv6Addr>,
-    ) -> Option<Self> {
+    ) -> anyhow::Result<Self> {
         let mut records = Vec::new();
 
         if let Some(ipv4) = ipv4 {
@@ -53,10 +53,6 @@ impl ZoneConfig {
             export: Some(DnsExportPolicy::default()),
         };
 
-        if records.is_empty() {
-            return None;
-        }
-
         let config = ZoneConfigInner {
             id: id.unwrap_or_else(Uuid::new_v4),
             origin,
@@ -65,7 +61,7 @@ impl ZoneConfig {
             ..Default::default()
         };
 
-        config.try_into().ok()
+        config.try_into()
     }
 }
 
@@ -90,6 +86,7 @@ impl From<ZoneConfigInner> for ZoneData {
         Self {
             id: Some(value.id.into()),
             origin: value.origin.to_string(),
+            ttl: value.ttl,
             records: value.records,
             forwarders: value.forwarders.into(),
         }

easytier/src/dns/peer_mgr.rs

@@ -58,13 +58,10 @@ impl DnsPeerMgr {
 
     pub fn snapshot(&self) -> DnsSnapshot {
         let global_ctx = self.peer_mgr.get_global_ctx_ref();
-        let config = global_ctx.config.get_dns();
 
-        let zones = config
-            .zones
-            .into_iter()
+        let zones = global_ctx
+            .dns_iter_zones()
             .map_into()
-            .chain(global_ctx.dns_self_zone().into_iter().map_into())
             .chain(
                 self.peers
                     .iter()
@@ -72,6 +69,7 @@ impl DnsPeerMgr {
             )
             .collect();
 
+        let config = global_ctx.config.get_dns();
         DnsSnapshot {
             zones,
             addresses: config.addresses.into(),

easytier/src/dns/zone.rs

@@ -160,6 +160,7 @@ impl From<Zone> for proto::dns::ZoneData {
         Self {
             id: Some(value.id.into()),
             origin: value.origin.to_string(),
+            ttl: 0,
             records,
             forwarders,
         }

easytier/src/proto/dns.proto

@@ -7,8 +7,9 @@ package dns;
 message ZoneData {
   common.UUID id = 1;
   string origin = 2;
-  repeated string records = 3;
-  repeated common.Url forwarders = 4;
+  uint32 ttl = 3;
+  repeated string records = 4;
+  repeated common.Url forwarders = 5;
 }
 
 message GetExportConfigRequest {}

easytier/src/proto/dns.rs

@@ -30,6 +30,8 @@ impl Display for ZoneData {
         }
         writeln!(f)?;
 
+        writeln!(f, "$TTL {}", self.ttl)?;
+
         for record in &self.records {
             writeln!(f, "{}", record)?;
         }