WIP REST routes to create / update Network filters

virtweb_backend/src/utils/net_utils.rs

@@ -17,3 +17,22 @@ pub fn extract_ipv6(ip: IpAddr) -> Ipv6Addr {
         IpAddr::V6(i) => i,
     }
 }
+
+pub fn is_mac_address_valid<D: AsRef<str>>(mac: D) -> bool {
+    lazy_regex::regex!("^([a-fA-F0-9]{2}[:-]){5}[a-fA-F0-9]{2}$").is_match(mac.as_ref())
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::utils::net_utils::is_mac_address_valid;
+
+    #[test]
+    fn mac_addresses() {
+        assert!(is_mac_address_valid("FF:FF:FF:FF:FF:FF"));
+        assert!(is_mac_address_valid("02:42:a4:6e:f2:be"));
+
+        assert!(!is_mac_address_valid("tata"));
+        assert!(!is_mac_address_valid("FF:FF:FF:FF:FF:FZ"));
+        assert!(!is_mac_address_valid("FF:FF:FF:FF:FF:FF:FF"));
+    }
+}