Merge pull request #21 from aeber/fix_macos_ipv6

Fix macos ip/route setup for ipv6 nets

shared/src/wg.rs

@@ -24,6 +24,8 @@ fn cmd(bin: &str, args: &[&str]) -> Result<process::Output, Error> {
 #[cfg(target_os = "macos")]
 pub fn set_addr(interface: &str, addr: IpNetwork) -> Result<(), Error> {
     let real_interface = wgctrl::backends::userspace::resolve_tun(interface).with_str(interface)?;
+
+    if addr.is_ipv4() {
         cmd(
             "ifconfig",
             &[
@@ -34,6 +36,12 @@ pub fn set_addr(interface: &str, addr: IpNetwork) -> Result<(), Error> {
                 "alias",
             ],
         )?;
+    } else {
+        cmd(
+            "ifconfig",
+            &[&real_interface, "inet6", &addr.to_string(), "alias"],
+        )?;
+    }
     cmd("ifconfig", &[&real_interface, "mtu", "1420"])?;
     Ok(())
 }
@@ -113,7 +121,7 @@ pub fn add_route(interface: &str, cidr: IpNetwork) -> Result<bool, Error> {
             &[
                 "-n",
                 "add",
-                "-inet",
+                if cidr.is_ipv4() { "-inet" } else { "-inet6" },
                 &cidr.to_string(),
                 "-interface",
                 &real_interface,