feat(core): rename Interface to StreamInterface, add MessageInterface, restructure ListenerConfig

Per ADR-035: split Interface trait into StreamInterface (stream-based, SSH/RawFraming)
and MessageInterface (request/response, HTTP/DNS). Remove TransportKind::Dns (DNS is
a MessageInterface). Change WebTransport { host } to { server_name: Option<String> }.
Restructure ListenerConfig from flat struct to enum with Stream/Http/Dns variants.

crates/alknet-core/src/config/forwarding.rs

@@ -499,17 +499,13 @@ mod tests {
                     target: TargetPattern::AlknetPrefix,
                     action: ForwardingAction::Allow,
                     principals: vec![],
-                    transports: vec![TransportKind::WebTransport {
-                        host: String::new(),
-                    }],
+                    transports: vec![TransportKind::WebTransport { server_name: None }],
                 },
                 ForwardingRule {
                     target: TargetPattern::Any,
                     action: ForwardingAction::Deny,
                     principals: vec![],
-                    transports: vec![TransportKind::WebTransport {
-                        host: String::new(),
-                    }],
+                    transports: vec![TransportKind::WebTransport { server_name: None }],
                 },
             ],
         };
@@ -518,17 +514,13 @@ mod tests {
             "alknet-control",
             0,
             &identity,
-            TransportKind::WebTransport {
-                host: String::new()
-            }
+            TransportKind::WebTransport { server_name: None }
         ));
         assert!(!policy.check(
             "example.com",
             443,
             &identity,
-            TransportKind::WebTransport {
-                host: String::new()
-            }
+            TransportKind::WebTransport { server_name: None }
         ));
         assert!(policy.check("example.com", 443, &identity, TransportKind::Tcp));
     }

crates/alknet-core/src/config/static_config.rs

@@ -2,9 +2,9 @@
 //!
 //! See [ADR-030](docs/architecture/decisions/030-dynamic-config.md).
 
-use crate::interface::InterfaceKind;
+use crate::interface::StreamInterfaceKind;
 use crate::server::handler::{ProxyConfig, ProxyMode};
-use crate::server::serve::{ListenerConfig, ServeTransportMode};
+use crate::server::serve::{ListenerConfig, ServeTransportMode, StreamListenerConfig};
 use crate::transport::TransportKind;
 use std::net::SocketAddr;
 
@@ -66,21 +66,23 @@ impl StaticConfig {
         let listeners = if let Some(listeners) = opts.listeners {
             listeners
         } else {
-            vec![ListenerConfig {
-                transport_kind: match opts.transport_mode {
-                    ServeTransportMode::Tcp => TransportKind::Tcp,
-                    ServeTransportMode::Tls => TransportKind::Tls { server_name: None },
-                    ServeTransportMode::Iroh => TransportKind::Iroh {
-                        endpoint_id: String::new(),
+            vec![ListenerConfig::Stream {
+                config: StreamListenerConfig {
+                    transport_kind: match opts.transport_mode {
+                        ServeTransportMode::Tcp => TransportKind::Tcp,
+                        ServeTransportMode::Tls => TransportKind::Tls { server_name: None },
+                        ServeTransportMode::Iroh => TransportKind::Iroh {
+                            endpoint_id: String::new(),
+                        },
                     },
+                    interface: StreamInterfaceKind::Ssh,
+                    listen_addr: opts.listen_addr.clone(),
+                    tls_cert: opts.tls_cert.clone(),
+                    tls_key: opts.tls_key.clone(),
+                    acme_domain: opts.acme_domain.clone(),
+                    stealth: opts.stealth,
+                    iroh_relay: opts.iroh_relay.clone(),
                 },
-                interface_kind: InterfaceKind::Ssh,
-                listen_addr: opts.listen_addr.clone(),
-                tls_cert: opts.tls_cert.clone(),
-                tls_key: opts.tls_key.clone(),
-                acme_domain: opts.acme_domain.clone(),
-                stealth: opts.stealth,
-                iroh_relay: opts.iroh_relay.clone(),
             }]
         };
 
@@ -111,23 +113,23 @@ fn parse_proxy_config(
         None => Ok(None),
         Some(url) => {
             if let Some(rest) = url.strip_prefix("socks5://") {
-                let addr: SocketAddr = rest.parse().map_err(|e| {
-                    crate::error::ConfigError::ProxyConfigInvalid {
-                        message: format!("invalid socks5 proxy address '{}': {}", rest, e),
-                    }
-                })?;
+                let addr: SocketAddr =
+                    rest.parse()
+                        .map_err(|e| crate::error::ConfigError::ProxyConfigInvalid {
+                            message: format!("invalid socks5 proxy address '{}': {}", rest, e),
+                        })?;
                 Ok(Some(ProxyConfig {
                     mode: ProxyMode::Socks5(addr),
                 }))
             } else if let Some(rest) = url.strip_prefix("http://") {
-                let addr: SocketAddr = rest.parse().map_err(|e| {
-                    crate::error::ConfigError::ProxyConfigInvalid {
-                        message: format!(
-                            "invalid http connect proxy address '{}': {}",
-                            rest, e
-                        ),
-                    }
-                })?;
+                let addr: SocketAddr =
+                    rest.parse()
+                        .map_err(|e| crate::error::ConfigError::ProxyConfigInvalid {
+                            message: format!(
+                                "invalid http connect proxy address '{}': {}",
+                                rest, e
+                            ),
+                        })?;
                 Ok(Some(ProxyConfig {
                     mode: ProxyMode::HttpConnect(addr),
                 }))
@@ -239,10 +241,12 @@ mod tests {
             .listeners(listeners);
         let (static_config, _) = StaticConfig::from_serve_options(opts).unwrap();
         assert_eq!(static_config.listeners.len(), 1);
-        assert_eq!(
-            static_config.listeners[0].transport_kind,
-            TransportKind::Tcp
-        );
+        match &static_config.listeners[0] {
+            ListenerConfig::Stream { config } => {
+                assert_eq!(config.transport_kind, TransportKind::Tcp);
+            }
+            _ => panic!("expected Stream variant"),
+        }
     }
 
     #[test]

crates/alknet-core/src/interface/config.rs

@@ -2,22 +2,39 @@ use std::sync::Arc;
 
 use arc_swap::ArcSwap;
 use russh::keys::PrivateKey;
+use serde::{Deserialize, Serialize};
 
 use crate::auth::IdentityProvider;
 use crate::config::DynamicConfig;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[non_exhaustive]
-pub enum InterfaceKind {
+pub enum StreamInterfaceKind {
     Ssh,
     RawFraming,
 }
 
-impl std::fmt::Display for InterfaceKind {
+impl std::fmt::Display for StreamInterfaceKind {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            InterfaceKind::Ssh => write!(f, "ssh"),
-            InterfaceKind::RawFraming => write!(f, "raw-framing"),
+            StreamInterfaceKind::Ssh => write!(f, "ssh"),
+            StreamInterfaceKind::RawFraming => write!(f, "raw-framing"),
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum MessageInterfaceKind {
+    Http,
+    Dns,
+}
+
+impl std::fmt::Display for MessageInterfaceKind {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            MessageInterfaceKind::Http => write!(f, "http"),
+            MessageInterfaceKind::Dns => write!(f, "dns"),
         }
     }
 }
@@ -29,12 +46,61 @@ pub enum InterfaceConfig {
 }
 
 impl InterfaceConfig {
-    pub fn kind(&self) -> InterfaceKind {
+    pub fn kind(&self) -> StreamInterfaceKind {
         #[allow(unreachable_patterns)]
         match self {
-            InterfaceConfig::Ssh(_) => InterfaceKind::Ssh,
-            InterfaceConfig::RawFraming(_) => InterfaceKind::RawFraming,
-            _ => InterfaceKind::Ssh,
+            InterfaceConfig::Ssh(_) => StreamInterfaceKind::Ssh,
+            InterfaceConfig::RawFraming(_) => StreamInterfaceKind::RawFraming,
+            _ => StreamInterfaceKind::Ssh,
+        }
+    }
+}
+
+#[non_exhaustive]
+pub enum StreamInterfaceConfig {
+    Ssh(SshInterfaceConfig),
+    RawFraming(RawFramingConfig),
+}
+
+impl StreamInterfaceConfig {
+    pub fn kind(&self) -> StreamInterfaceKind {
+        match self {
+            StreamInterfaceConfig::Ssh(_) => StreamInterfaceKind::Ssh,
+            StreamInterfaceConfig::RawFraming(_) => StreamInterfaceKind::RawFraming,
+        }
+    }
+}
+
+impl std::fmt::Display for StreamInterfaceConfig {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            StreamInterfaceConfig::Ssh(_) => write!(f, "ssh"),
+            StreamInterfaceConfig::RawFraming(_) => write!(f, "raw-framing"),
+        }
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum MessageInterfaceConfig {
+    Http(HttpInterfaceConfig),
+    Dns(DnsInterfaceConfig),
+}
+
+impl MessageInterfaceConfig {
+    pub fn kind(&self) -> MessageInterfaceKind {
+        match self {
+            MessageInterfaceConfig::Http(_) => MessageInterfaceKind::Http,
+            MessageInterfaceConfig::Dns(_) => MessageInterfaceKind::Dns,
+        }
+    }
+}
+
+impl std::fmt::Display for MessageInterfaceConfig {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            MessageInterfaceConfig::Http(_) => write!(f, "http"),
+            MessageInterfaceConfig::Dns(_) => write!(f, "dns"),
         }
     }
 }
@@ -47,22 +113,53 @@ pub struct SshInterfaceConfig {
 
 pub struct RawFramingConfig {}
 
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct HttpInterfaceConfig {
+    pub bind_addr: std::net::SocketAddr,
+    pub tls: bool,
+    pub stealth: bool,
+}
+
+impl std::fmt::Display for HttpInterfaceConfig {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "http {}", self.bind_addr)
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct DnsInterfaceConfig {
+    pub bind_addr: std::net::SocketAddr,
+    pub tls: bool,
+}
+
+impl std::fmt::Display for DnsInterfaceConfig {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "dns {}", self.bind_addr)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
 
     #[test]
-    fn interface_kind_display() {
-        assert_eq!(InterfaceKind::Ssh.to_string(), "ssh");
-        assert_eq!(InterfaceKind::RawFraming.to_string(), "raw-framing");
+    fn stream_interface_kind_display() {
+        assert_eq!(StreamInterfaceKind::Ssh.to_string(), "ssh");
+        assert_eq!(StreamInterfaceKind::RawFraming.to_string(), "raw-framing");
     }
 
     #[test]
-    fn interface_kind_from_config() {
+    fn message_interface_kind_display() {
+        assert_eq!(MessageInterfaceKind::Http.to_string(), "http");
+        assert_eq!(MessageInterfaceKind::Dns.to_string(), "dns");
+    }
+
+    #[test]
+    fn stream_interface_config_kind() {
         let auth = Arc::new(crate::auth::ConfigIdentityProvider::new(Arc::new(
             ArcSwap::new(Arc::new(DynamicConfig::default())),
         )));
-        let ssh_config = InterfaceConfig::Ssh(SshInterfaceConfig {
+        let ssh_config = StreamInterfaceConfig::Ssh(SshInterfaceConfig {
             auth,
             forwarding: Arc::new(ArcSwap::new(Arc::new(DynamicConfig::default()))),
             host_key: Arc::new(
@@ -73,21 +170,91 @@ mod tests {
                 .unwrap(),
             ),
         });
-        assert_eq!(ssh_config.kind(), InterfaceKind::Ssh);
+        assert_eq!(ssh_config.kind(), StreamInterfaceKind::Ssh);
 
-        let raw_config = InterfaceConfig::RawFraming(RawFramingConfig {});
-        assert_eq!(raw_config.kind(), InterfaceKind::RawFraming);
+        let raw_config = StreamInterfaceConfig::RawFraming(RawFramingConfig {});
+        assert_eq!(raw_config.kind(), StreamInterfaceKind::RawFraming);
     }
 
     #[test]
-    fn interface_kind_equality() {
-        assert_eq!(InterfaceKind::Ssh, InterfaceKind::Ssh);
-        assert_eq!(InterfaceKind::RawFraming, InterfaceKind::RawFraming);
-        assert_ne!(InterfaceKind::Ssh, InterfaceKind::RawFraming);
+    fn message_interface_config_kind() {
+        let http_config = MessageInterfaceConfig::Http(HttpInterfaceConfig {
+            bind_addr: "127.0.0.1:8080".parse().unwrap(),
+            tls: false,
+            stealth: false,
+        });
+        assert_eq!(http_config.kind(), MessageInterfaceKind::Http);
+
+        let dns_config = MessageInterfaceConfig::Dns(DnsInterfaceConfig {
+            bind_addr: "127.0.0.1:53".parse().unwrap(),
+            tls: false,
+        });
+        assert_eq!(dns_config.kind(), MessageInterfaceKind::Dns);
+    }
+
+    #[test]
+    fn stream_interface_kind_equality() {
+        assert_eq!(StreamInterfaceKind::Ssh, StreamInterfaceKind::Ssh);
+        assert_eq!(
+            StreamInterfaceKind::RawFraming,
+            StreamInterfaceKind::RawFraming
+        );
+        assert_ne!(StreamInterfaceKind::Ssh, StreamInterfaceKind::RawFraming);
+    }
+
+    #[test]
+    fn message_interface_kind_equality() {
+        assert_eq!(MessageInterfaceKind::Http, MessageInterfaceKind::Http);
+        assert_eq!(MessageInterfaceKind::Dns, MessageInterfaceKind::Dns);
+        assert_ne!(MessageInterfaceKind::Http, MessageInterfaceKind::Dns);
     }
 
     #[test]
     fn raw_framing_config_minimal() {
         let _config = RawFramingConfig {};
     }
+
+    #[test]
+    fn http_interface_config_display() {
+        let config = HttpInterfaceConfig {
+            bind_addr: "127.0.0.1:8080".parse().unwrap(),
+            tls: true,
+            stealth: true,
+        };
+        assert_eq!(config.to_string(), "http 127.0.0.1:8080");
+    }
+
+    #[test]
+    fn dns_interface_config_display() {
+        let config = DnsInterfaceConfig {
+            bind_addr: "127.0.0.1:53".parse().unwrap(),
+            tls: false,
+        };
+        assert_eq!(config.to_string(), "dns 127.0.0.1:53");
+    }
+
+    #[test]
+    fn http_interface_config_serialization() {
+        let config = HttpInterfaceConfig {
+            bind_addr: "127.0.0.1:8080".parse().unwrap(),
+            tls: true,
+            stealth: false,
+        };
+        let serialized = serde_json::to_string(&config).unwrap();
+        let deserialized: HttpInterfaceConfig = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(deserialized.bind_addr, config.bind_addr);
+        assert_eq!(deserialized.tls, config.tls);
+    }
+
+    #[test]
+    fn dns_interface_config_serialization() {
+        let config = DnsInterfaceConfig {
+            bind_addr: "0.0.0.0:53".parse().unwrap(),
+            tls: true,
+        };
+        let serialized = serde_json::to_string(&config).unwrap();
+        let deserialized: DnsInterfaceConfig = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(deserialized.bind_addr, config.bind_addr);
+        assert_eq!(deserialized.tls, config.tls);
+    }
 }

crates/alknet-core/src/interface/dns.rs

@@ -0,0 +1,47 @@
+use std::sync::Arc;
+
+use anyhow::Result;
+use async_trait::async_trait;
+
+use crate::call::OperationEnv;
+use crate::interface::{InterfaceRequest, InterfaceResponse, MessageInterface};
+
+pub struct DnsInterface {
+    pub domain: String,
+    pub identity_provider: Arc<dyn crate::auth::IdentityProvider>,
+    pub registry: Arc<crate::call::OperationRegistry>,
+    pub env: OperationEnv,
+}
+
+#[async_trait]
+impl MessageInterface for DnsInterface {
+    async fn handle_request(&self, _request: InterfaceRequest) -> Result<InterfaceResponse> {
+        Ok(InterfaceResponse {
+            result: Err(crate::call::CallError::new(
+                "NOT_IMPLEMENTED",
+                "DnsInterface is not yet implemented",
+                false,
+            )),
+            status: 501,
+            headers: std::collections::HashMap::new(),
+        })
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn dns_interface_type_exists() {
+        let registry = Arc::new(crate::call::OperationRegistry::new());
+        let _iface = DnsInterface {
+            domain: "alk.dev".to_string(),
+            identity_provider: Arc::new(crate::auth::ConfigIdentityProvider::new(Arc::new(
+                arc_swap::ArcSwap::new(Arc::new(crate::config::DynamicConfig::default())),
+            ))),
+            env: OperationEnv::local(crate::call::OperationRegistry::new()),
+            registry,
+        };
+    }
+}

crates/alknet-core/src/interface/http.rs

@@ -0,0 +1,45 @@
+use std::sync::Arc;
+
+use anyhow::Result;
+use async_trait::async_trait;
+
+use crate::call::OperationEnv;
+use crate::interface::{InterfaceRequest, InterfaceResponse, MessageInterface};
+
+pub struct HttpInterface {
+    pub identity_provider: Arc<dyn crate::auth::IdentityProvider>,
+    pub registry: Arc<crate::call::OperationRegistry>,
+    pub env: OperationEnv,
+}
+
+#[async_trait]
+impl MessageInterface for HttpInterface {
+    async fn handle_request(&self, _request: InterfaceRequest) -> Result<InterfaceResponse> {
+        Ok(InterfaceResponse {
+            result: Err(crate::call::CallError::new(
+                "NOT_IMPLEMENTED",
+                "HttpInterface is not yet implemented",
+                false,
+            )),
+            status: 501,
+            headers: std::collections::HashMap::new(),
+        })
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn http_interface_type_exists() {
+        let registry = Arc::new(crate::call::OperationRegistry::new());
+        let _iface = HttpInterface {
+            identity_provider: Arc::new(crate::auth::ConfigIdentityProvider::new(Arc::new(
+                arc_swap::ArcSwap::new(Arc::new(crate::config::DynamicConfig::default())),
+            ))),
+            env: OperationEnv::local(crate::call::OperationRegistry::new()),
+            registry,
+        };
+    }
+}

crates/alknet-core/src/interface/mod.rs

@@ -1,37 +1,37 @@
-//! Interface layer (Layer 2) of the three-layer model (ADR-026).
+//! Interface layer (Layer 2) of the three-layer model (ADR-026, ADR-035).
 //!
 //! The Interface layer sits between Transport (Layer 1) and Protocol (Layer 3).
-//! An Interface consumes a `TransportStream` and produces call protocol sessions
-//! that yield `EventEnvelope` frames. This enables the call protocol handler to be
-//! interface-agnostic — it receives `InterfaceEvent` frames from any interface.
+//! It has two distinct patterns:
 //!
-//! SSH is an interface, not a transport. It wraps a byte stream in session
-//! semantics (handshake, auth, channel multiplexing). Raw framing (4-byte length
-//! prefix + JSON `EventEnvelope`) is another interface, one without SSH overhead.
+//! - **StreamInterface** — consumes a `TransportStream`, produces a long-lived
+//!   `Session` that yields `InterfaceEvent` frames. SSH and raw framing are
+//!   `StreamInterface` implementations.
 //!
-//! # OQ-IF-01 Resolution
-//!
-//! Every Interface session implements the `InterfaceSession` trait, which provides
-//! `recv()` and `send()` methods producing and consuming `InterfaceEvent` frames.
-//! Each `InterfaceEvent` carries an `EventEnvelope` and an optional `Identity`
-//! (authenticated by the interface layer, e.g., via SSH public key auth or
-//! transport-level token auth).
-//!
-//! This means the call protocol handler (Layer 3) is completely interface-agnostic:
-//! it receives `InterfaceEvent` frames and processes them uniformly, regardless
-//! of whether they arrived over SSH or raw framing.
+//! - **MessageInterface** — handles individual `InterfaceRequest` →
+//!   `InterfaceResponse` pairs. Manages its own transport (HTTP server, DNS
+//!   server). HTTP and DNS are `MessageInterface` implementations.
 
 pub mod config;
+pub mod dns;
+pub mod http;
 pub mod pairs;
 pub mod raw_framing;
 pub mod session;
 pub mod ssh;
 
+use std::collections::HashMap;
+
 use anyhow::Result;
 use async_trait::async_trait;
 use tokio::io::{AsyncRead, AsyncWrite};
 
-pub use config::{InterfaceConfig, InterfaceKind, RawFramingConfig, SshInterfaceConfig};
+pub use config::{
+    DnsInterfaceConfig, HttpInterfaceConfig, InterfaceConfig, MessageInterfaceConfig,
+    MessageInterfaceKind, RawFramingConfig, SshInterfaceConfig, StreamInterfaceConfig,
+    StreamInterfaceKind,
+};
+pub use dns::DnsInterface;
+pub use http::HttpInterface;
 pub use pairs::{is_valid_pair, TransportKindBase, VALID_TRANSPORT_INTERFACE_PAIRS};
 pub use raw_framing::{RawFramingInterface, RawFramingSession};
 pub use session::{InterfaceEvent, InterfaceSession};
@@ -42,16 +42,36 @@ pub trait TransportStream: AsyncRead + AsyncWrite + Unpin + Send + 'static {}
 impl<T: AsyncRead + AsyncWrite + Unpin + Send + 'static> TransportStream for T {}
 
 #[async_trait]
-pub trait Interface: Send + Sync + 'static {
+pub trait StreamInterface: Send + Sync + 'static {
     type Session: InterfaceSession;
 
     async fn accept(
         &self,
         stream: Box<dyn TransportStream>,
-        config: &InterfaceConfig,
+        config: &StreamInterfaceConfig,
     ) -> Result<Self::Session>;
 }
 
+#[async_trait]
+pub trait MessageInterface: Send + Sync + 'static {
+    async fn handle_request(&self, request: InterfaceRequest) -> Result<InterfaceResponse>;
+}
+
+#[derive(Debug, Clone)]
+pub struct InterfaceRequest {
+    pub operation_path: String,
+    pub input: serde_json::Value,
+    pub auth_token: Option<crate::auth::AuthToken>,
+    pub metadata: HashMap<String, String>,
+}
+
+#[derive(Debug, Clone)]
+pub struct InterfaceResponse {
+    pub result: Result<serde_json::Value, crate::call::CallError>,
+    pub status: u16,
+    pub headers: HashMap<String, String>,
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -69,4 +89,52 @@ mod tests {
         let _boxed: Box<dyn TransportStream> = Box::new(server);
         let _: Box<dyn TransportStream> = Box::new(client);
     }
+
+    #[test]
+    fn interface_request_fields() {
+        let req = InterfaceRequest {
+            operation_path: "/v1/head/auth/verify".to_string(),
+            input: serde_json::json!({"key": "value"}),
+            auth_token: None,
+            metadata: HashMap::new(),
+        };
+        assert_eq!(req.operation_path, "/v1/head/auth/verify");
+        assert!(req.auth_token.is_none());
+    }
+
+    #[test]
+    fn interface_response_fields() {
+        let resp = InterfaceResponse {
+            result: Ok(serde_json::json!({"status": "ok"})),
+            status: 200,
+            headers: HashMap::new(),
+        };
+        assert_eq!(resp.status, 200);
+    }
+
+    struct MockMessageInterface;
+
+    #[async_trait]
+    impl MessageInterface for MockMessageInterface {
+        async fn handle_request(&self, _request: InterfaceRequest) -> Result<InterfaceResponse> {
+            Ok(InterfaceResponse {
+                result: Ok(serde_json::json!({})),
+                status: 200,
+                headers: HashMap::new(),
+            })
+        }
+    }
+
+    #[tokio::test]
+    async fn message_interface_trait_compiles() {
+        let iface = MockMessageInterface;
+        let req = InterfaceRequest {
+            operation_path: "/test".to_string(),
+            input: serde_json::json!({}),
+            auth_token: None,
+            metadata: HashMap::new(),
+        };
+        let resp = iface.handle_request(req).await.unwrap();
+        assert_eq!(resp.status, 200);
+    }
 }

crates/alknet-core/src/interface/pairs.rs

@@ -1,13 +1,12 @@
 use crate::transport::TransportKind;
 
-use super::config::InterfaceKind;
+use super::config::StreamInterfaceKind;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum TransportKindBase {
     Tcp,
     Tls,
     Iroh,
-    Dns,
     WebTransport,
 }
 
@@ -16,33 +15,36 @@ fn transport_base(kind: &TransportKind) -> TransportKindBase {
         TransportKind::Tcp => TransportKindBase::Tcp,
         TransportKind::Tls { .. } => TransportKindBase::Tls,
         TransportKind::Iroh { .. } => TransportKindBase::Iroh,
-        TransportKind::Dns { .. } => TransportKindBase::Dns,
         TransportKind::WebTransport { .. } => TransportKindBase::WebTransport,
     }
 }
 
-pub fn is_valid_pair(transport: &TransportKind, interface: InterfaceKind) -> bool {
+pub fn is_valid_pair(transport: &TransportKind, interface: StreamInterfaceKind) -> bool {
     let base = transport_base(transport);
     matches!(
         (base, interface),
-        (TransportKindBase::Tcp, InterfaceKind::Ssh)
-            | (TransportKindBase::Tls, InterfaceKind::Ssh)
-            | (TransportKindBase::Iroh, InterfaceKind::Ssh)
-            | (TransportKindBase::Dns, InterfaceKind::RawFraming)
-            | (TransportKindBase::WebTransport, InterfaceKind::Ssh)
-            | (TransportKindBase::WebTransport, InterfaceKind::RawFraming)
-            | (TransportKindBase::Tcp, InterfaceKind::RawFraming)
+        (TransportKindBase::Tcp, StreamInterfaceKind::Ssh)
+            | (TransportKindBase::Tls, StreamInterfaceKind::Ssh)
+            | (TransportKindBase::Iroh, StreamInterfaceKind::Ssh)
+            | (TransportKindBase::WebTransport, StreamInterfaceKind::Ssh)
+            | (
+                TransportKindBase::WebTransport,
+                StreamInterfaceKind::RawFraming
+            )
+            | (TransportKindBase::Tcp, StreamInterfaceKind::RawFraming)
     )
 }
 
-pub const VALID_TRANSPORT_INTERFACE_PAIRS: &[(TransportKindBase, InterfaceKind)] = &[
-    (TransportKindBase::Tcp, InterfaceKind::Ssh),
-    (TransportKindBase::Tls, InterfaceKind::Ssh),
-    (TransportKindBase::Iroh, InterfaceKind::Ssh),
-    (TransportKindBase::Dns, InterfaceKind::RawFraming),
-    (TransportKindBase::WebTransport, InterfaceKind::Ssh),
-    (TransportKindBase::WebTransport, InterfaceKind::RawFraming),
-    (TransportKindBase::Tcp, InterfaceKind::RawFraming),
+pub const VALID_TRANSPORT_INTERFACE_PAIRS: &[(TransportKindBase, StreamInterfaceKind)] = &[
+    (TransportKindBase::Tcp, StreamInterfaceKind::Ssh),
+    (TransportKindBase::Tls, StreamInterfaceKind::Ssh),
+    (TransportKindBase::Iroh, StreamInterfaceKind::Ssh),
+    (TransportKindBase::WebTransport, StreamInterfaceKind::Ssh),
+    (
+        TransportKindBase::WebTransport,
+        StreamInterfaceKind::RawFraming,
+    ),
+    (TransportKindBase::Tcp, StreamInterfaceKind::RawFraming),
 ];
 
 #[cfg(test)]
@@ -51,22 +53,20 @@ mod tests {
 
     #[test]
     fn valid_ssh_pairs() {
-        assert!(is_valid_pair(&TransportKind::Tcp, InterfaceKind::Ssh));
+        assert!(is_valid_pair(&TransportKind::Tcp, StreamInterfaceKind::Ssh));
         assert!(is_valid_pair(
             &TransportKind::Tls { server_name: None },
-            InterfaceKind::Ssh
+            StreamInterfaceKind::Ssh
         ));
         assert!(is_valid_pair(
             &TransportKind::Iroh {
                 endpoint_id: String::new()
             },
-            InterfaceKind::Ssh
+            StreamInterfaceKind::Ssh
         ));
         assert!(is_valid_pair(
-            &TransportKind::WebTransport {
-                host: String::new()
-            },
-            InterfaceKind::Ssh
+            &TransportKind::WebTransport { server_name: None },
+            StreamInterfaceKind::Ssh
         ));
     }
 
@@ -74,35 +74,21 @@ mod tests {
     fn valid_raw_framing_pairs() {
         assert!(is_valid_pair(
             &TransportKind::Tcp,
-            InterfaceKind::RawFraming
+            StreamInterfaceKind::RawFraming
         ));
         assert!(is_valid_pair(
-            &TransportKind::Dns {
-                domain: String::new()
-            },
-            InterfaceKind::RawFraming
-        ));
-        assert!(is_valid_pair(
-            &TransportKind::WebTransport {
-                host: String::new()
-            },
-            InterfaceKind::RawFraming
+            &TransportKind::WebTransport { server_name: None },
+            StreamInterfaceKind::RawFraming
         ));
     }
 
     #[test]
     fn invalid_pairs() {
-        assert!(!is_valid_pair(
-            &TransportKind::Dns {
-                domain: String::new()
-            },
-            InterfaceKind::Ssh
-        ));
         assert!(!is_valid_pair(
             &TransportKind::Iroh {
                 endpoint_id: String::new()
             },
-            InterfaceKind::RawFraming
+            StreamInterfaceKind::RawFraming
         ));
     }
 
@@ -121,15 +107,9 @@ mod tests {
             }),
             TransportKindBase::Iroh
         );
-        assert_eq!(
-            transport_base(&TransportKind::Dns {
-                domain: "example.com".to_string()
-            }),
-            TransportKindBase::Dns
-        );
         assert_eq!(
             transport_base(&TransportKind::WebTransport {
-                host: "example.com".to_string()
+                server_name: Some("example.com".to_string())
             }),
             TransportKindBase::WebTransport
         );
@@ -137,6 +117,6 @@ mod tests {
 
     #[test]
     fn valid_pairs_table_complete() {
-        assert_eq!(VALID_TRANSPORT_INTERFACE_PAIRS.len(), 7);
+        assert_eq!(VALID_TRANSPORT_INTERFACE_PAIRS.len(), 6);
     }
 }

crates/alknet-core/src/interface/raw_framing.rs

@@ -2,20 +2,20 @@ use anyhow::Result;
 use async_trait::async_trait;
 
 use crate::interface::session::{InterfaceEvent, InterfaceSession};
-use crate::interface::{Interface, InterfaceConfig, TransportStream};
+use crate::interface::{StreamInterface, StreamInterfaceConfig, TransportStream};
 
 pub struct RawFramingInterface;
 
 pub struct RawFramingSession;
 
 #[async_trait]
-impl Interface for RawFramingInterface {
+impl StreamInterface for RawFramingInterface {
     type Session = RawFramingSession;
 
     async fn accept(
         &self,
         _stream: Box<dyn TransportStream>,
-        _config: &InterfaceConfig,
+        _config: &StreamInterfaceConfig,
     ) -> Result<Self::Session> {
         Err(anyhow::anyhow!(
             "RawFramingInterface is not yet implemented (Phase 4+)"
@@ -55,7 +55,7 @@ mod tests {
         let iface = RawFramingInterface;
         let (_client, server) = tokio::io::duplex(1024);
         let stream: Box<dyn TransportStream> = Box::new(server);
-        let config = InterfaceConfig::RawFraming(crate::interface::RawFramingConfig {});
+        let config = StreamInterfaceConfig::RawFraming(crate::interface::RawFramingConfig {});
         let result = iface.accept(stream, &config).await;
         assert!(result.is_err());
     }

crates/alknet-core/src/interface/ssh.rs

@@ -14,7 +14,7 @@ use crate::auth::identity::{Identity, IdentityProvider};
 use crate::call::EventEnvelope;
 use crate::config::DynamicConfig;
 use crate::interface::session::{InterfaceEvent, InterfaceSession};
-use crate::interface::{Interface, InterfaceConfig, TransportStream};
+use crate::interface::{StreamInterface, StreamInterfaceConfig, TransportStream};
 use crate::server::control_channel::{ControlChannelRouter, ALKNET_PREFIX};
 use crate::server::rate_limit::{AuthAttemptLimiter, ConnectionRateLimiter};
 use crate::transport::TransportKind;
@@ -553,17 +553,17 @@ impl SshInterface {
 }
 
 #[async_trait]
-impl Interface for SshInterface {
+impl StreamInterface for SshInterface {
     type Session = SshSession;
 
     async fn accept(
         &self,
         stream: Box<dyn TransportStream>,
-        config: &InterfaceConfig,
+        config: &StreamInterfaceConfig,
     ) -> Result<Self::Session> {
         let ssh_config = match config {
-            InterfaceConfig::Ssh(c) => c,
-            InterfaceConfig::RawFraming(_) => {
+            StreamInterfaceConfig::Ssh(c) => c,
+            StreamInterfaceConfig::RawFraming(_) => {
                 return Err(anyhow::anyhow!("SshInterface received RawFramingConfig"));
             }
         };
@@ -734,7 +734,7 @@ mod tests {
         let (_client, server) = tokio::io::duplex(1024);
         let stream: Box<dyn TransportStream> = Box::new(server);
 
-        let raw_config = InterfaceConfig::RawFraming(crate::interface::RawFramingConfig {});
+        let raw_config = StreamInterfaceConfig::RawFraming(crate::interface::RawFramingConfig {});
         let result = iface.accept(stream, &raw_config).await;
         assert!(result.is_err());
     }

crates/alknet-core/src/lib.rs

@@ -86,9 +86,15 @@ pub use config::{
 };
 pub use error::{AuthError, ChannelError, ConfigError, ForwardError, TransportError};
 pub use interface::{
-    is_valid_pair, Interface, InterfaceConfig, InterfaceEvent, InterfaceKind, InterfaceSession,
-    RawFramingConfig, RawFramingInterface, RawFramingSession, SshInterface, SshInterfaceConfig,
-    SshSession, TransportKindBase, TransportStream, VALID_TRANSPORT_INTERFACE_PAIRS,
+    is_valid_pair, DnsInterface, DnsInterfaceConfig, HttpInterface, HttpInterfaceConfig,
+    InterfaceConfig, InterfaceEvent, InterfaceRequest, InterfaceResponse, InterfaceSession,
+    MessageInterface, MessageInterfaceConfig, MessageInterfaceKind, RawFramingConfig,
+    RawFramingInterface, RawFramingSession, SshInterface, SshInterfaceConfig, SshSession,
+    StreamInterface, StreamInterfaceConfig, StreamInterfaceKind, TransportKindBase,
+    TransportStream, VALID_TRANSPORT_INTERFACE_PAIRS,
+};
+pub use server::serve::{
+    DnsListenerConfig, HttpListenerConfig, ListenerConfig, ServeError, ServeOptions,
+    ServeTransportMode, Server, StreamListenerConfig,
 };
-pub use server::serve::{ListenerConfig, ServeError, ServeOptions, ServeTransportMode, Server};
 pub use transport::{Transport, TransportAcceptor, TransportInfo, TransportKind};

crates/alknet-core/src/server/handler.rs

@@ -774,17 +774,7 @@ mod tests {
             "iroh"
         );
         assert_eq!(
-            TransportKind::Dns {
-                domain: String::new()
-            }
-            .to_string(),
-            "dns"
-        );
-        assert_eq!(
-            TransportKind::WebTransport {
-                host: String::new()
-            }
-            .to_string(),
+            TransportKind::WebTransport { server_name: None }.to_string(),
             "webtransport"
         );
     }

crates/alknet-core/src/server/mod.rs

@@ -21,7 +21,10 @@ pub use control_channel::{
 };
 pub use handler::{ProxyConfig, ProxyMode, ServerHandler};
 pub use rate_limit::{AuthAttemptLimiter, ConnectionRateLimiter};
-pub use serve::{ListenerConfig, ServeError, ServeOptions, ServeTransportMode, Server};
+pub use serve::{
+    DnsListenerConfig, HttpListenerConfig, ListenerConfig, ServeError, ServeOptions,
+    ServeTransportMode, Server, StreamListenerConfig,
+};
 
 pub use crate::transport::TransportKind;
 pub use stealth::{

crates/alknet-core/src/server/serve.rs

@@ -5,18 +5,20 @@
 //! `ServeOptions` provides a builder-pattern API for programmatic configuration.
 //! Supports multiple listeners via `ListenerConfig` for multi-transport operation.
 
+use std::net::SocketAddr;
 use std::sync::Arc;
 use std::time::Duration;
 
 use arc_swap::ArcSwap;
 use russh::server::{self, Config};
+use serde::{Deserialize, Serialize};
 use tokio::io::{AsyncRead, AsyncWrite};
 use tracing::{error, info, warn};
 
 use crate::auth::keys::KeySource;
 use crate::config::{ConfigReloadHandle, DynamicConfig};
 use crate::error::ConfigError;
-use crate::interface::InterfaceKind;
+use crate::interface::StreamInterfaceKind;
 use crate::server::handler::{ProxyConfig, ServerHandler};
 use crate::server::rate_limit::ConnectionRateLimiter;
 use crate::server::stealth::{self, ProtocolDetection};
@@ -42,10 +44,10 @@ impl std::fmt::Display for ServeTransportMode {
     }
 }
 
-#[derive(Debug, Clone, PartialEq)]
-pub struct ListenerConfig {
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct StreamListenerConfig {
     pub transport_kind: TransportKind,
-    pub interface_kind: InterfaceKind,
+    pub interface: StreamInterfaceKind,
     pub listen_addr: String,
     pub tls_cert: Option<String>,
     pub tls_key: Option<String>,
@@ -54,103 +56,7 @@ pub struct ListenerConfig {
     pub iroh_relay: Option<String>,
 }
 
-impl ListenerConfig {
-    pub fn tcp(addr: impl Into<String>) -> Self {
-        Self {
-            transport_kind: TransportKind::Tcp,
-            interface_kind: InterfaceKind::Ssh,
-            listen_addr: addr.into(),
-            tls_cert: None,
-            tls_key: None,
-            acme_domain: None,
-            stealth: false,
-            iroh_relay: None,
-        }
-    }
-
-    pub fn tls(addr: impl Into<String>) -> Self {
-        Self {
-            transport_kind: TransportKind::Tls { server_name: None },
-            interface_kind: InterfaceKind::Ssh,
-            listen_addr: addr.into(),
-            tls_cert: None,
-            tls_key: None,
-            acme_domain: None,
-            stealth: false,
-            iroh_relay: None,
-        }
-    }
-
-    pub fn iroh(addr: impl Into<String>) -> Self {
-        Self {
-            transport_kind: TransportKind::Iroh {
-                endpoint_id: String::new(),
-            },
-            interface_kind: InterfaceKind::Ssh,
-            listen_addr: addr.into(),
-            tls_cert: None,
-            tls_key: None,
-            acme_domain: None,
-            stealth: false,
-            iroh_relay: None,
-        }
-    }
-
-    pub fn dns(domain: impl Into<String>) -> Self {
-        Self {
-            transport_kind: TransportKind::Dns {
-                domain: String::new(),
-            },
-            interface_kind: InterfaceKind::RawFraming,
-            listen_addr: domain.into(),
-            tls_cert: None,
-            tls_key: None,
-            acme_domain: None,
-            stealth: false,
-            iroh_relay: None,
-        }
-    }
-
-    pub fn webtransport(host: impl Into<String>) -> Self {
-        Self {
-            transport_kind: TransportKind::WebTransport {
-                host: String::new(),
-            },
-            interface_kind: InterfaceKind::Ssh,
-            listen_addr: host.into(),
-            tls_cert: None,
-            tls_key: None,
-            acme_domain: None,
-            stealth: false,
-            iroh_relay: None,
-        }
-    }
-
-    pub fn tls_cert(mut self, path: impl Into<String>) -> Self {
-        self.tls_cert = Some(path.into());
-        self
-    }
-
-    pub fn tls_key(mut self, path: impl Into<String>) -> Self {
-        self.tls_key = Some(path.into());
-        self
-    }
-
-    pub fn acme_domain(mut self, domain: impl Into<String>) -> Self {
-        self.acme_domain = Some(domain.into());
-        self
-    }
-
-    pub fn stealth(mut self, enabled: bool) -> Self {
-        self.stealth = enabled;
-        self
-    }
-
-    pub fn iroh_relay(mut self, url: impl Into<String>) -> Self {
-        self.iroh_relay = Some(url.into());
-        self
-    }
-
+impl StreamListenerConfig {
     pub fn validate(&self) -> Result<(), ConfigError> {
         if self.stealth && !matches!(self.transport_kind, TransportKind::Tls { .. }) {
             return Err(ConfigError::InvalidFlag {
@@ -178,7 +84,6 @@ impl ListenerConfig {
             }
             TransportKind::Tcp
             | TransportKind::Iroh { .. }
-            | TransportKind::Dns { .. }
             | TransportKind::WebTransport { .. } => {
                 if self.tls_cert.is_some() || self.tls_key.is_some() || self.acme_domain.is_some() {
                     return Err(ConfigError::IncompatibleOptions);
@@ -190,13 +95,190 @@ impl ListenerConfig {
     }
 }
 
-impl std::fmt::Display for ListenerConfig {
+impl std::fmt::Display for StreamListenerConfig {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self.transport_kind {
-            TransportKind::Iroh { .. } => write!(f, "{} (iroh)", self.listen_addr),
-            TransportKind::Dns { .. } => write!(f, "{} (dns)", self.listen_addr),
-            TransportKind::WebTransport { .. } => write!(f, "{} (webtransport)", self.listen_addr),
-            _ => write!(f, "{} ({})", self.listen_addr, self.transport_kind),
+            TransportKind::Iroh { .. } => {
+                write!(f, "{} (iroh/{})", self.listen_addr, self.interface)
+            }
+            TransportKind::WebTransport { .. } => {
+                write!(f, "{} (webtransport/{})", self.listen_addr, self.interface)
+            }
+            _ => write!(
+                f,
+                "{} ({}/{})",
+                self.listen_addr, self.transport_kind, self.interface
+            ),
+        }
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct HttpListenerConfig {
+    pub bind_addr: SocketAddr,
+    pub tls: bool,
+    pub stealth: bool,
+}
+
+impl std::fmt::Display for HttpListenerConfig {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{} (http)", self.bind_addr)
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+pub struct DnsListenerConfig {
+    pub bind_addr: SocketAddr,
+    pub tls: bool,
+}
+
+impl std::fmt::Display for DnsListenerConfig {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{} (dns)", self.bind_addr)
+    }
+}
+
+#[derive(Debug, Clone, PartialEq)]
+#[non_exhaustive]
+pub enum ListenerConfig {
+    Stream { config: StreamListenerConfig },
+    Http { config: HttpListenerConfig },
+    Dns { config: DnsListenerConfig },
+}
+
+impl ListenerConfig {
+    pub fn tcp(addr: impl Into<String>) -> Self {
+        Self::Stream {
+            config: StreamListenerConfig {
+                transport_kind: TransportKind::Tcp,
+                interface: StreamInterfaceKind::Ssh,
+                listen_addr: addr.into(),
+                tls_cert: None,
+                tls_key: None,
+                acme_domain: None,
+                stealth: false,
+                iroh_relay: None,
+            },
+        }
+    }
+
+    pub fn tls(addr: impl Into<String>) -> Self {
+        Self::Stream {
+            config: StreamListenerConfig {
+                transport_kind: TransportKind::Tls { server_name: None },
+                interface: StreamInterfaceKind::Ssh,
+                listen_addr: addr.into(),
+                tls_cert: None,
+                tls_key: None,
+                acme_domain: None,
+                stealth: false,
+                iroh_relay: None,
+            },
+        }
+    }
+
+    pub fn iroh(addr: impl Into<String>) -> Self {
+        Self::Stream {
+            config: StreamListenerConfig {
+                transport_kind: TransportKind::Iroh {
+                    endpoint_id: String::new(),
+                },
+                interface: StreamInterfaceKind::Ssh,
+                listen_addr: addr.into(),
+                tls_cert: None,
+                tls_key: None,
+                acme_domain: None,
+                stealth: false,
+                iroh_relay: None,
+            },
+        }
+    }
+
+    pub fn webtransport(addr: impl Into<String>) -> Self {
+        Self::Stream {
+            config: StreamListenerConfig {
+                transport_kind: TransportKind::WebTransport { server_name: None },
+                interface: StreamInterfaceKind::Ssh,
+                listen_addr: addr.into(),
+                tls_cert: None,
+                tls_key: None,
+                acme_domain: None,
+                stealth: false,
+                iroh_relay: None,
+            },
+        }
+    }
+
+    pub fn http(bind_addr: SocketAddr) -> Self {
+        Self::Http {
+            config: HttpListenerConfig {
+                bind_addr,
+                tls: false,
+                stealth: false,
+            },
+        }
+    }
+
+    pub fn dns(bind_addr: SocketAddr) -> Self {
+        Self::Dns {
+            config: DnsListenerConfig {
+                bind_addr,
+                tls: false,
+            },
+        }
+    }
+
+    pub fn tls_cert(mut self, path: impl Into<String>) -> Self {
+        if let ListenerConfig::Stream { ref mut config } = self {
+            config.tls_cert = Some(path.into());
+        }
+        self
+    }
+
+    pub fn tls_key(mut self, path: impl Into<String>) -> Self {
+        if let ListenerConfig::Stream { ref mut config } = self {
+            config.tls_key = Some(path.into());
+        }
+        self
+    }
+
+    pub fn acme_domain(mut self, domain: impl Into<String>) -> Self {
+        if let ListenerConfig::Stream { ref mut config } = self {
+            config.acme_domain = Some(domain.into());
+        }
+        self
+    }
+
+    pub fn stealth(mut self, enabled: bool) -> Self {
+        match &mut self {
+            ListenerConfig::Stream { ref mut config } => config.stealth = enabled,
+            ListenerConfig::Http { ref mut config } => config.stealth = enabled,
+            ListenerConfig::Dns { .. } => {}
+        }
+        self
+    }
+
+    pub fn iroh_relay(mut self, url: impl Into<String>) -> Self {
+        if let ListenerConfig::Stream { ref mut config } = self {
+            config.iroh_relay = Some(url.into());
+        }
+        self
+    }
+
+    pub fn validate(&self) -> Result<(), ConfigError> {
+        match self {
+            ListenerConfig::Stream { config } => config.validate(),
+            ListenerConfig::Http { .. } | ListenerConfig::Dns { .. } => Ok(()),
+        }
+    }
+}
+
+impl std::fmt::Display for ListenerConfig {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            ListenerConfig::Stream { config } => write!(f, "{}", config),
+            ListenerConfig::Http { config } => write!(f, "{}", config),
+            ListenerConfig::Dns { config } => write!(f, "{}", config),
         }
     }
 }
@@ -488,9 +570,21 @@ impl Server {
             .first()
             .expect("at least one listener required");
 
-        let transport_kind = listener.transport_kind.clone();
-        let stealth = listener.stealth;
-        let listen_addr = listener.listen_addr.clone();
+        let (transport_kind, stealth, listen_addr) = match listener {
+            ListenerConfig::Stream { config } => (
+                config.transport_kind.clone(),
+                config.stealth,
+                config.listen_addr.clone(),
+            ),
+            ListenerConfig::Http { config } => (
+                TransportKind::Tcp,
+                config.stealth,
+                config.bind_addr.to_string(),
+            ),
+            ListenerConfig::Dns { config } => {
+                (TransportKind::Tcp, false, config.bind_addr.to_string())
+            }
+        };
 
         if matches!(transport_kind, TransportKind::Iroh { .. }) {
             if let Some(id) = endpoint_info {
@@ -832,10 +926,15 @@ mod tests {
     #[test]
     fn listener_config_tcp_constructor() {
         let lc = ListenerConfig::tcp("0.0.0.0:22");
-        assert_eq!(lc.transport_kind, TransportKind::Tcp);
-        assert_eq!(lc.listen_addr, "0.0.0.0:22");
-        assert!(!lc.stealth);
-        assert!(lc.tls_cert.is_none());
+        match &lc {
+            ListenerConfig::Stream { config } => {
+                assert_eq!(config.transport_kind, TransportKind::Tcp);
+                assert_eq!(config.listen_addr, "0.0.0.0:22");
+                assert!(!config.stealth);
+                assert!(config.tls_cert.is_none());
+            }
+            _ => panic!("expected Stream variant"),
+        }
     }
 
     #[test]
@@ -844,47 +943,85 @@ mod tests {
             .tls_cert("/cert.pem")
             .tls_key("/key.pem")
             .stealth(true);
-        assert_eq!(lc.transport_kind, TransportKind::Tls { server_name: None });
-        assert_eq!(lc.listen_addr, "0.0.0.0:443");
-        assert!(lc.stealth);
-        assert_eq!(lc.tls_cert.as_deref(), Some("/cert.pem"));
-        assert_eq!(lc.tls_key.as_deref(), Some("/key.pem"));
+        match &lc {
+            ListenerConfig::Stream { config } => {
+                assert_eq!(
+                    config.transport_kind,
+                    TransportKind::Tls { server_name: None }
+                );
+                assert_eq!(config.listen_addr, "0.0.0.0:443");
+                assert!(config.stealth);
+                assert_eq!(config.tls_cert.as_deref(), Some("/cert.pem"));
+                assert_eq!(config.tls_key.as_deref(), Some("/key.pem"));
+            }
+            _ => panic!("expected Stream variant"),
+        }
     }
 
     #[test]
     fn listener_config_iroh_constructor() {
         let lc = ListenerConfig::iroh("0.0.0.0:0").iroh_relay("https://relay.example.com");
-        assert_eq!(
-            lc.transport_kind,
-            TransportKind::Iroh {
-                endpoint_id: String::new()
+        match &lc {
+            ListenerConfig::Stream { config } => {
+                assert_eq!(
+                    config.transport_kind,
+                    TransportKind::Iroh {
+                        endpoint_id: String::new()
+                    }
+                );
+                assert_eq!(
+                    config.iroh_relay.as_deref(),
+                    Some("https://relay.example.com")
+                );
             }
-        );
-        assert_eq!(lc.iroh_relay.as_deref(), Some("https://relay.example.com"));
+            _ => panic!("expected Stream variant"),
+        }
+    }
+
+    #[test]
+    fn listener_config_http_constructor() {
+        let lc = ListenerConfig::http("127.0.0.1:8080".parse().unwrap());
+        match &lc {
+            ListenerConfig::Http { config } => {
+                assert_eq!(
+                    config.bind_addr,
+                    "127.0.0.1:8080".parse::<SocketAddr>().unwrap()
+                );
+                assert!(!config.tls);
+                assert!(!config.stealth);
+            }
+            _ => panic!("expected Http variant"),
+        }
     }
 
     #[test]
     fn listener_config_dns_constructor() {
-        let lc = ListenerConfig::dns("example.com");
-        assert_eq!(
-            lc.transport_kind,
-            TransportKind::Dns {
-                domain: String::new()
+        let lc = ListenerConfig::dns("127.0.0.1:53".parse().unwrap());
+        match &lc {
+            ListenerConfig::Dns { config } => {
+                assert_eq!(
+                    config.bind_addr,
+                    "127.0.0.1:53".parse::<SocketAddr>().unwrap()
+                );
+                assert!(!config.tls);
             }
-        );
-        assert_eq!(lc.listen_addr, "example.com");
+            _ => panic!("expected Dns variant"),
+        }
     }
 
     #[test]
     fn listener_config_webtransport_constructor() {
         let lc = ListenerConfig::webtransport("example.com");
-        assert_eq!(
-            lc.transport_kind,
-            TransportKind::WebTransport {
-                host: String::new()
+        match &lc {
+            ListenerConfig::Stream { config } => {
+                assert_eq!(
+                    config.transport_kind,
+                    TransportKind::WebTransport { server_name: None }
+                );
+                assert_eq!(config.listen_addr, "example.com");
             }
-        );
-        assert_eq!(lc.listen_addr, "example.com");
+            _ => panic!("expected Stream variant"),
+        }
     }
 
     #[test]
@@ -922,19 +1059,19 @@ mod tests {
     #[test]
     fn listener_config_display() {
         let tcp = ListenerConfig::tcp("0.0.0.0:22");
-        assert_eq!(format!("{}", tcp), "0.0.0.0:22 (tcp)");
+        assert_eq!(format!("{}", tcp), "0.0.0.0:22 (tcp/ssh)");
 
         let tls = ListenerConfig::tls("0.0.0.0:443");
-        assert_eq!(format!("{}", tls), "0.0.0.0:443 (tls)");
+        assert_eq!(format!("{}", tls), "0.0.0.0:443 (tls/ssh)");
 
         let iroh = ListenerConfig::iroh("0.0.0.0:0");
-        assert_eq!(format!("{}", iroh), "0.0.0.0:0 (iroh)");
+        assert_eq!(format!("{}", iroh), "0.0.0.0:0 (iroh/ssh)");
 
-        let dns = ListenerConfig::dns("example.com");
-        assert_eq!(format!("{}", dns), "example.com (dns)");
+        let http = ListenerConfig::http("0.0.0.0:8080".parse().unwrap());
+        assert_eq!(format!("{}", http), "0.0.0.0:8080 (http)");
 
-        let wt = ListenerConfig::webtransport("example.com");
-        assert_eq!(format!("{}", wt), "example.com (webtransport)");
+        let dns = ListenerConfig::dns("0.0.0.0:53".parse().unwrap());
+        assert_eq!(format!("{}", dns), "0.0.0.0:53 (dns)");
     }
 
     #[test]
@@ -1011,7 +1148,6 @@ mod tests {
             .listeners(listeners);
         let server = Server::new(opts).unwrap();
         assert_eq!(server.listeners.len(), 1);
-        assert_eq!(server.listeners[0].transport_kind, TransportKind::Tcp);
     }
 
     #[test]
@@ -1020,8 +1156,13 @@ mod tests {
             ServeOptions::new(make_key_source()).authorized_keys(make_authorized_keys_source());
         let server = Server::new(opts).unwrap();
         assert_eq!(server.listeners.len(), 1);
-        assert_eq!(server.listeners[0].transport_kind, TransportKind::Tcp);
-        assert_eq!(server.listeners[0].listen_addr, "0.0.0.0:22");
+        match &server.listeners[0] {
+            ListenerConfig::Stream { config } => {
+                assert_eq!(config.transport_kind, TransportKind::Tcp);
+                assert_eq!(config.listen_addr, "0.0.0.0:22");
+            }
+            _ => panic!("expected Stream variant"),
+        }
     }
 
     #[test]
@@ -1035,12 +1176,17 @@ mod tests {
             .stealth(true);
         let server = Server::new(opts).unwrap();
         assert_eq!(server.listeners.len(), 1);
-        assert_eq!(
-            server.listeners[0].transport_kind,
-            TransportKind::Tls { server_name: None }
-        );
-        assert!(server.listeners[0].stealth);
-        assert_eq!(server.listeners[0].tls_cert.as_deref(), Some("/cert.pem"));
+        match &server.listeners[0] {
+            ListenerConfig::Stream { config } => {
+                assert_eq!(
+                    config.transport_kind,
+                    TransportKind::Tls { server_name: None }
+                );
+                assert!(config.stealth);
+                assert_eq!(config.tls_cert.as_deref(), Some("/cert.pem"));
+            }
+            _ => panic!("expected Stream variant"),
+        }
     }
 
     #[test]
@@ -1056,11 +1202,6 @@ mod tests {
             .listeners(listeners);
         let server = Server::new(opts).unwrap();
         assert_eq!(server.listeners().len(), 2);
-        assert_eq!(server.listeners()[0].transport_kind, TransportKind::Tcp);
-        assert_eq!(
-            server.listeners()[1].transport_kind,
-            TransportKind::Tls { server_name: None }
-        );
     }
 
     #[test]
@@ -1113,4 +1254,48 @@ mod tests {
             "server should have shut down within timeout"
         );
     }
+
+    #[test]
+    fn http_listener_config_display() {
+        let config = HttpListenerConfig {
+            bind_addr: "127.0.0.1:8080".parse().unwrap(),
+            tls: true,
+            stealth: false,
+        };
+        assert_eq!(config.to_string(), "127.0.0.1:8080 (http)");
+    }
+
+    #[test]
+    fn dns_listener_config_display() {
+        let config = DnsListenerConfig {
+            bind_addr: "0.0.0.0:53".parse().unwrap(),
+            tls: true,
+        };
+        assert_eq!(config.to_string(), "0.0.0.0:53 (dns)");
+    }
+
+    #[test]
+    fn http_listener_config_serialization() {
+        let config = HttpListenerConfig {
+            bind_addr: "127.0.0.1:8080".parse().unwrap(),
+            tls: true,
+            stealth: false,
+        };
+        let serialized = serde_json::to_string(&config).unwrap();
+        let deserialized: HttpListenerConfig = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(deserialized.bind_addr, config.bind_addr);
+        assert_eq!(deserialized.tls, config.tls);
+    }
+
+    #[test]
+    fn dns_listener_config_serialization() {
+        let config = DnsListenerConfig {
+            bind_addr: "0.0.0.0:53".parse().unwrap(),
+            tls: true,
+        };
+        let serialized = serde_json::to_string(&config).unwrap();
+        let deserialized: DnsListenerConfig = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(deserialized.bind_addr, config.bind_addr);
+        assert_eq!(deserialized.tls, config.tls);
+    }
 }

crates/alknet-core/src/transport/mod.rs

@@ -91,8 +91,7 @@ pub enum TransportKind {
     Tcp,
     Tls { server_name: Option<String> },
     Iroh { endpoint_id: String },
-    Dns { domain: String },
-    WebTransport { host: String },
+    WebTransport { server_name: Option<String> },
 }
 
 impl std::fmt::Display for TransportKind {
@@ -101,7 +100,7 @@ impl std::fmt::Display for TransportKind {
             TransportKind::Tcp => write!(f, "tcp"),
             TransportKind::Tls { .. } => write!(f, "tls"),
             TransportKind::Iroh { .. } => write!(f, "iroh"),
-            TransportKind::Dns { .. } => write!(f, "dns"),
+
             TransportKind::WebTransport { .. } => write!(f, "webtransport"),
         }
     }
@@ -183,11 +182,8 @@ mod tests {
         let iroh = TransportKind::Iroh {
             endpoint_id: "abc123".to_string(),
         };
-        let dns = TransportKind::Dns {
-            domain: "example.com".to_string(),
-        };
         let wt = TransportKind::WebTransport {
-            host: "example.com".to_string(),
+            server_name: Some("example.com".to_string()),
         };
 
         if let TransportKind::Tcp = tcp {}
@@ -200,11 +196,8 @@ mod tests {
         if let TransportKind::Iroh { endpoint_id } = iroh {
             assert_eq!(endpoint_id, "abc123");
         }
-        if let TransportKind::Dns { domain } = dns {
-            assert_eq!(domain, "example.com");
-        }
-        if let TransportKind::WebTransport { host } = wt {
-            assert_eq!(host, "example.com");
+        if let TransportKind::WebTransport { server_name } = wt {
+            assert_eq!(server_name, Some("example.com".to_string()));
         }
     }
 }

crates/alknet-napi/src/serve.rs

@@ -306,7 +306,9 @@ impl russh::server::Handler for NapiServerHandler {
         }
 
         let fingerprint = format!("{}", public_key.fingerprint(HashAlg::Sha256));
-        let identity = self.identity_provider.resolve_from_fingerprint(&fingerprint);
+        let identity = self
+            .identity_provider
+            .resolve_from_fingerprint(&fingerprint);
 
         match identity {
             Some(id) => {
@@ -339,11 +341,14 @@ impl russh::server::Handler for NapiServerHandler {
             return Ok(true);
         }
 
-        let identity = self.authenticated_identity.clone().unwrap_or_else(|| Identity {
-            id: String::new(),
-            scopes: vec![],
-            resources: std::collections::HashMap::new(),
-        });
+        let identity = self
+            .authenticated_identity
+            .clone()
+            .unwrap_or_else(|| Identity {
+                id: String::new(),
+                scopes: vec![],
+                resources: std::collections::HashMap::new(),
+            });
 
         let policy = self.dynamic.load();
         let allowed = policy.forwarding.check(
@@ -664,11 +669,8 @@ impl AlknetServer {
         let new_auth_policy = build_auth_policy_from_napi(&auth)?;
         let new_forwarding = build_forwarding_policy(&forwarding)?;
         let current = self.reload_handle.dynamic();
-        let new_config = DynamicConfig::from_parts(
-            new_auth_policy,
-            new_forwarding,
-            current.rate_limits.clone(),
-        );
+        let new_config =
+            DynamicConfig::from_parts(new_auth_policy, new_forwarding, current.rate_limits.clone());
         self.reload_handle.reload(new_config);
         Ok(())
     }