Suppress BB-only 6xBF for V1/V2 proxy clients

2026-05-13 05:24:15 -04:00
1 changed files with 5 additions and 0 deletions
@@ -1007,6 +1007,11 @@ static asio::awaitable<HandlerResult> S_6x(shared_ptr<Client> c, Channel::Messag

  bool modified = false;
  uint8_t subcommand = translate_subcommand_number(Version::BB_V4, c->version(), msg.data[0]);
+  if ((static_cast<uint8_t>(msg.data[0]) == 0xBF) && is_v1_or_v2(c->version())) {
+    c->log.warning_f("Suppressing BB-only 6xBF for V1/V2 proxy client");
+    co_return HandlerResult::SUPPRESS;
+  }
+
  switch (subcommand) {
    case 0x00:
      c->log.warning_f("Blocking invalid subcommand from server");