added check version support to remote mounts

repertory/librepertory/src/comm/packet/packet_server.cpp

@@ -143,6 +143,8 @@ auto packet_server::handshake(std::shared_ptr<connection> conn) const -> bool {
       if (total_read == to_read) {
         packet response(conn->buffer);
         if (response.decrypt(encryption_token_) == 0) {
+          std::uint32_t client_version{};
+          if (response.decode(client_version) == 0) {
             std::string nonce;
             if (response.decode(nonce) == 0) {
               if (nonce == conn->nonce) {
@@ -150,12 +152,15 @@ auto packet_server::handshake(std::shared_ptr<connection> conn) const -> bool {
                 return true;
               }
 
-            throw std::runtime_error("invalid nonce");
+              throw std::runtime_error("nonce mismatch");
             }
 
             throw std::runtime_error("invalid nonce");
           }
 
+          throw std::runtime_error("invalid client version");
+        }
+
         throw std::runtime_error("decryption failed");
       }
 
@@ -283,7 +288,7 @@ void packet_server::read_packet(std::shared_ptr<connection> conn,
       ret = request->decode(nonce);
       if (ret == 0) {
         if (nonce != conn->nonce) {
-          throw std::runtime_error("invalid nonce");
+          throw std::runtime_error("nonce mismatch");
         }
         conn->generate_nonce();