Add ARP / RARP selectors extraction

virtweb_backend/src/utils/net_utils.rs

@@ -1,4 +1,5 @@
 use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
+use std::str::FromStr;
 
 pub fn extract_ipv4(ip: IpAddr) -> Ipv4Addr {
     match ip {
@@ -18,16 +19,20 @@ pub fn extract_ipv6(ip: IpAddr) -> Ipv6Addr {
     }
 }
 
+pub fn is_ipv4_address_valid<D: AsRef<str>>(ip: D) -> bool {
+    Ipv4Addr::from_str(ip.as_ref()).is_ok()
+}
+
 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;
+    use crate::utils::net_utils::{is_ipv4_address_valid, is_mac_address_valid};
 
     #[test]
-    fn mac_addresses() {
+    fn test_is_mac_address_valid() {
         assert!(is_mac_address_valid("FF:FF:FF:FF:FF:FF"));
         assert!(is_mac_address_valid("02:42:a4:6e:f2:be"));
 
@@ -35,4 +40,14 @@ mod tests {
         assert!(!is_mac_address_valid("FF:FF:FF:FF:FF:FZ"));
         assert!(!is_mac_address_valid("FF:FF:FF:FF:FF:FF:FF"));
     }
+
+    #[test]
+    fn test_is_ipv4_address_valid() {
+        assert!(is_ipv4_address_valid("10.0.0.1"));
+        assert!(is_ipv4_address_valid("2.56.58.156"));
+
+        assert!(!is_ipv4_address_valid("tata"));
+        assert!(!is_ipv4_address_valid("1.25.25.288"));
+        assert!(!is_ipv4_address_valid("5.5.5.5.5"));
+    }
 }