add support for RESPONSE-ORIGIN and OTHER-ADDRESS attributes

src/lib.rs

@@ -31,6 +31,8 @@ const ATTR_UNKNOWN_ATTRIBUTES: u16 = 0x000a;
 const ATTR_REALM: u16 = 0x0014;
 const ATTR_NONCE: u16 = 0x0015;
 const ATTR_ALTERNATE_SERVER: u16 = 0x8023;
+const ATTR_RESPONSE_ORIGIN: u16 = 0x802b;
+const ATTR_OTHER_ADDRESS: u16 = 0x802c;
 
 const SOFTWARE: [u8; 8] = *b"tailnode";
 const BINDING_REQUEST: [u8; 2] = [0x00, 0x01];
@@ -149,6 +151,8 @@ pub enum StunAttribute {
     UnknownAttributes(Vec<u16>),
     Software(String),
     AlternateServer(AddrPort),
+    ResponseOrigin(AddrPort),
+    OtherAddress(AddrPort),
     Unknown((u16, Vec<u8>)),
 }
 
@@ -223,8 +227,26 @@ impl fmt::Display for StunAttribute {
                     a.port
                 )
             }
+            StunAttribute::ResponseOrigin(a) => {
+                write!(
+                    f,
+                    "  ResponseOrigin ({}) {}:{}",
+                    addr_family(&a.address),
+                    a.address,
+                    a.port
+                )
+            },
+            StunAttribute::OtherAddress(a) => {
+                write!(
+                    f,
+                    "  OtherAddress ({}) {}:{}",
+                    addr_family(&a.address),
+                    a.address,
+                    a.port
+                )
+            },
             StunAttribute::Unknown((attr_type, data)) => {
-                write!(f, "  Unknown ({}) {:?}", attr_type, data)
+                write!(f, "  Unknown ({:04x}) {:?}", attr_type, data)
             }
         }
     }
@@ -488,6 +510,14 @@ where
             let (_residual, addr) = parse_stun_address(attr_data)?;
             StunAttribute::AlternateServer(addr)
         }
+        ATTR_RESPONSE_ORIGIN => {
+            let (_residual, addr) = parse_stun_address(attr_data)?;
+            StunAttribute::ResponseOrigin(addr)
+        }
+        ATTR_OTHER_ADDRESS => {
+            let (_residual, addr) = parse_stun_address(attr_data)?;
+            StunAttribute::OtherAddress(addr)
+        }
 
         t => {
             warn!("Unknown STUN attribute type {t}");