Stash

src/network.rs

@@ -1,10 +1,13 @@
+use crate::topology::DeviceCapabilities;
 use network_interface::{Addr, NetworkInterface, NetworkInterfaceConfig};
+use serde::{Deserialize, Serialize};
 use socket2::{Domain, Protocol, Socket, Type};
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use std::time::Duration;
-use serde::{Deserialize, Serialize};
+use system_configuration::core_foundation::array::CFArray;
+use system_configuration::network_configuration::{get_interfaces, SCNetworkInterface, SCNetworkInterfaceType};
+use system_configuration::sys::network_configuration::SCNetworkInterfaceRef;
 use tokio::net::UdpSocket;
-use crate::topology::DeviceCapabilities;
 
 #[derive(Copy, Clone, Debug)]
 enum InterfaceType {
@@ -45,7 +48,6 @@ impl ToString for InterfaceType {
     }
 }
 
-
 struct BroadcastCreationInfo {
     interface_name: String,
     interface_type: InterfaceType,
@@ -54,7 +56,84 @@ struct BroadcastCreationInfo {
     broadcast_address: Ipv4Addr,
 }
 
-fn get_broadcast_creation_info() -> Vec<BroadcastCreationInfo> {}
+fn get_broadcast_creation_info() -> Vec<BroadcastCreationInfo> {
+    let interfaces = NetworkInterface::show().unwrap();
+    let mut broadcast_info = Vec::new();
+
+    #[cfg(target_os = "macos")]
+    let sc_interfaces = get_interfaces();
+
+    for interface in interfaces {
+        // Skip interfaces without IPv4 addresses with broadcast
+        let map = interface.addr.iter().filter_map(|a| {
+            if let Addr::V4(v4) = a {
+                v4.broadcast.map(|b| (v4.ip, b))
+            } else {
+                None
+            }
+        });
+
+        for (bind_address, broadcast_address) in map {
+            let interface_type = if cfg!(target_os = "macos") {
+                get_sc_interface_type(&interface.name, &sc_interfaces).unwrap_or_else(|| determine_interface_type(&interface.name))
+            } else {
+                determine_interface_type(&interface.name)
+            };
+
+            broadcast_info.push(BroadcastCreationInfo {
+                interface_name: interface.name.clone(),
+                interface_type,
+                bind_address,
+                broadcast_address,
+            });
+        }
+    }
+
+    broadcast_info
+}
+
+#[cfg(target_os = "macos")]
+fn get_sc_interface_type(name: &str, sc_interfaces: &CFArray<SCNetworkInterface>) -> Option<InterfaceType> {
+    sc_interfaces.iter().find_map(|sc_if| {
+        sc_if
+            .bsd_name()
+            .and_then(|bsd| (bsd.to_string() == name).then(|| sc_if.interface_type()))
+            .flatten()
+            .map(|t| match t {
+                SCNetworkInterfaceType::Ethernet => InterfaceType::Ethernet,
+                SCNetworkInterfaceType::IEEE80211 => InterfaceType::WiFi,
+                _ => InterfaceType::Other,
+            })
+    })
+}
+
+fn determine_interface_type(name: &str) -> InterfaceType {
+    // Fallback to interface name pattern matching
+    if name.starts_with("docker") || name.starts_with("br-") || name.starts_with("veth") 
+        || name.starts_with("cni") || name.starts_with("flannel") || name.starts_with("calico") 
+        || name.starts_with("weave") || name.contains("bridge")
+    {
+        InterfaceType::ContainerVirtual
+    } else if name.starts_with("lo") {
+        InterfaceType::Loopback
+    } else if name.starts_with("tb") || name.starts_with("nx") || name.starts_with("ten") {
+        InterfaceType::Thunderbolt
+    } else if (name.starts_with("eth") || name.starts_with("en")) && !matches!(name, "en0" | "en1")
+    {
+        InterfaceType::Ethernet
+    } else if name.starts_with("wlan") || name.starts_with("wifi") || name.starts_with("wl") 
+        || matches!(name, "en0" | "en1") 
+    {
+        InterfaceType::WiFi
+    } else if name.starts_with("tun") || name.starts_with("tap") || name.starts_with("vtun")
+        || name.starts_with("utun") || name.starts_with("gif") || name.starts_with("stf")
+        || name.starts_with("awdl") || name.starts_with("llw")
+    {
+        InterfaceType::ExternalVirtual
+    } else {
+        InterfaceType::Other
+    }
+}
 
 struct NodeInfo {
     node_id: String,
@@ -74,11 +153,13 @@ struct DiscoveryMessage {
     interface_type: String,
 }
 
-async fn listen(broadcast_creation_info: BroadcastCreationInfo, node_info: NodeInfo, broadcast_port: u16, broadcast_interval: Duration) {
-    let socket_addr = SocketAddr::new(
-        IpAddr::V4(broadcast_creation_info.bind_address),
-        0,
-    );
+async fn listen(
+    broadcast_creation_info: BroadcastCreationInfo,
+    node_info: NodeInfo,
+    broadcast_port: u16,
+    broadcast_interval: Duration,
+) {
+    let socket_addr = SocketAddr::new(IpAddr::V4(broadcast_creation_info.bind_address), 0);
 
     let socket = bind_to_address(socket_addr);
 
@@ -90,13 +171,20 @@ async fn listen(broadcast_creation_info: BroadcastCreationInfo, node_info: NodeI
         priority: broadcast_creation_info.interface_type.priority(),
         interface_name: broadcast_creation_info.interface_name,
         interface_type: broadcast_creation_info.interface_type.to_string(),
-    }).unwrap();
+    })
+    .unwrap();
 
     loop {
-        socket.send_to(
-            &message,
-            SocketAddr::new(IpAddr::V4(broadcast_creation_info.broadcast_address), broadcast_port),
-        ).await.unwrap();
+        socket
+            .send_to(
+                &message,
+                SocketAddr::new(
+                    IpAddr::V4(broadcast_creation_info.broadcast_address),
+                    broadcast_port,
+                ),
+            )
+            .await
+            .unwrap();
 
         tokio::time::sleep(broadcast_interval).await;
     }
@@ -116,17 +204,5 @@ fn bind_to_address(address: SocketAddr) -> UdpSocket {
 
 #[test]
 fn test_interfaces() {
-    let raw = NetworkInterface::show().unwrap();
-    let names_and_addrs = raw
-        .iter()
-        .flat_map(|network_interface| {
-            let v4_addrs = network_interface
-                .addr
-                .iter()
-                .filter(|addr: &&Addr| matches!(addr, Addr::V4(..)))
-                .map(|addr: &Addr| (network_interface.name.clone(), *addr));
-
-            v4_addrs
-        })
-        .collect::<Vec<_>>();
+    dbg!(get_interfaces());
 }