Ugly responde with same protocol version

common/authenticator-requests/src/error.rs

@@ -22,4 +22,7 @@ pub enum Error {
 
     #[error("conversion: {0}")]
     Conversion(String),
+
+    #[error("failed to serialize response packet: {source}")]
+    FailedToSerializeResponsePacket { source: Box<bincode::ErrorKind> },
 }

common/authenticator-requests/src/traits.rs

@@ -11,6 +11,30 @@ use nym_wireguard_types::PeerPublicKey;
 
 use crate::{v1, v2, v3, Error};
 
+#[derive(Copy, Clone, Debug)]
+pub enum AuthenticatorVersion {
+    V1,
+    V2,
+    V3,
+    UNKNOWN,
+}
+
+impl From<Protocol> for AuthenticatorVersion {
+    fn from(value: Protocol) -> Self {
+        if value.service_provider_type != ServiceProviderType::Authenticator {
+            AuthenticatorVersion::UNKNOWN
+        } else if value.version == v1::VERSION {
+            AuthenticatorVersion::V1
+        } else if value.version == v2::VERSION {
+            AuthenticatorVersion::V2
+        } else if value.version == v3::VERSION {
+            AuthenticatorVersion::V3
+        } else {
+            AuthenticatorVersion::UNKNOWN
+        }
+    }
+}
+
 pub trait InitMessage {
     fn pub_key(&self) -> PeerPublicKey;
 }

common/service-provider-requests-common/src/lib.rs

@@ -3,7 +3,7 @@
 
 use serde::{Deserialize, Serialize};
 
-#[derive(Clone, Debug, Serialize, Deserialize)]
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 #[repr(u8)]
 pub enum ServiceProviderType {
     NetworkRequester = 0,

service-providers/authenticator/src/error.rs

@@ -88,6 +88,9 @@ pub enum AuthenticatorError {
 
     #[error("storage should have the requested bandwidht entry")]
     MissingClientBandwidthEntry,
+
+    #[error("unknown version number")]
+    UnknownVersion,
 }
 
 pub type Result<T> = std::result::Result<T, AuthenticatorError>;