trezor: try empty passphrase first

- Try empty passphrase first when opening a wallet, as all Trezors will have passphrase enabled by default by Trezor Suite by default.
  This feature enables easier access to all users using disabled passphrase (or empty passhprase)
- If wallet address differs from device address with empty passphrase, another opening attempt is made, without passphrase suppression,
  so user can enter his passhprase if using some. In this scenario, nothing changes to user, wallet opening just consumes one more call
  to Trezor (get wallet address with empty passphrase)
- also change how m_passphrase is used. Previous version did not work well with recent passphrase entry mechanism change (made in Trezor),
  thus this commit fixes the behaviour).

1 files changed, 20 insertions, 0 deletions

diff --git a/src/device/device_cold.hpp b/src/device/device_cold.hpp
index d435b448c..07009b9d2 100644
--- a/src/device/device_cold.hpp
+++ b/src/device/device_cold.hpp
@@ -162,6 +162,26 @@ namespace hw {
      * Live refresh process termination
      */
     virtual void live_refresh_finish() =0;
+
+    /**
+     * Requests public address, uses empty passphrase if asked for.
+     */
+    virtual bool get_public_address_with_no_passphrase(cryptonote::account_public_address &pubkey) =0;
+
+    /**
+     * Reset session ID, restart with a new session.
+     */
+    virtual void reset_session() =0;
+
+    /**
+     * Returns true if device already asked for passphrase entry before (i.e., obviously supports passphrase entry)
+     */
+    virtual bool seen_passphrase_entry_prompt() =0;
+
+    /**
+     * Uses empty passphrase for all passphrase queries.
+     */
+    virtual void set_use_empty_passphrase(bool always_use_empty_passphrase) =0;
   };
 }