device/trezor: HF10 support added, wallet::API

- import only key images generated by cold signing process
- wallet_api: trezor methods added
- wallet: button request code added
- const added to methods
- wallet2::get_tx_key_device() tries to decrypt stored tx private keys using the device.
- simplewallet supports get_tx_key and get_tx_proof on hw device using the get_tx_key feature
- live refresh enables refresh with trezor i.e. computing key images on the fly. More convenient and efficient for users.
- device: has_ki_live_refresh added
- a thread is watching whether live refresh is being computed, if not for 30 seconds, it terminates the live refresh process - switches Trezor state

1 files changed, 96 insertions, 0 deletions

diff --git a/src/device/device_cold.hpp b/src/device/device_cold.hpp
index 22128cec1..44c42020a 100644
--- a/src/device/device_cold.hpp
+++ b/src/device/device_cold.hpp
@@ -31,6 +31,7 @@
 #define MONERO_DEVICE_COLD_H
 
 #include "wallet/wallet2.h"
+#include <boost/optional/optional.hpp>
 #include <boost/function.hpp>
 
 
@@ -44,6 +45,8 @@ namespace hw {
   public:
     std::vector<std::string> tx_device_aux;  // device generated aux data
     std::vector<cryptonote::address_parse_info> tx_recipients;  // as entered by user
+    boost::optional<int> bp_version;  // BP version to use
+    boost::optional<unsigned> client_version;  // Signing client version to use (testing)
   };
 
   class device_cold {
@@ -51,6 +54,53 @@ namespace hw {
 
     using exported_key_image = std::vector<std::pair<crypto::key_image, crypto::signature>>;
 
+    class op_progress : public hw::device_progress {
+    public:
+      op_progress():m_progress(0), m_indeterminate(false) {};
+      explicit op_progress(double progress, bool indeterminate=false): m_progress(progress), m_indeterminate(indeterminate){}
+
+      double progress() const override { return m_progress; }
+      bool indeterminate() const override { return m_indeterminate; }
+    protected:
+      double m_progress;
+      bool m_indeterminate;
+    };
+
+    class tx_progress : public op_progress {
+    public:
+      tx_progress():
+        m_cur_tx(0), m_max_tx(1),
+        m_cur_step(0), m_max_step(1),
+        m_cur_substep(0), m_max_substep(1){};
+
+      tx_progress(size_t cur_tx, size_t max_tx, size_t cur_step, size_t max_step, size_t cur_substep, size_t max_substep):
+        m_cur_tx(cur_tx), m_max_tx(max_tx),
+        m_cur_step(cur_tx), m_max_step(max_tx),
+        m_cur_substep(cur_tx), m_max_substep(max_tx){}
+
+      double progress() const override {
+        return std::max(1.0, (double)m_cur_tx / m_max_tx
+          + (double)m_cur_step / (m_max_tx * m_max_step)
+          + (double)m_cur_substep / (m_max_tx * m_max_step * m_max_substep));
+      }
+      bool indeterminate() const override { return false; }
+
+    protected:
+      size_t m_cur_tx;
+      size_t m_max_tx;
+      size_t m_cur_step;
+      size_t m_max_step;
+      size_t m_cur_substep;
+      size_t m_max_substep;
+    };
+
+    typedef struct {
+      std::string salt1;
+      std::string salt2;
+      std::string tx_enc_keys;
+      std::string tx_prefix_hash;
+    } tx_key_data_t;
+
     /**
      * Key image sync with the cold protocol.
      */
@@ -65,6 +115,52 @@ namespace hw {
                  const ::tools::wallet2::unsigned_tx_set & unsigned_tx,
                  ::tools::wallet2::signed_tx_set & signed_tx,
                  tx_aux_data & aux_data) =0;
+
+    /**
+     * Get tx key support check.
+     */
+    virtual bool is_get_tx_key_supported() const { return false; }
+
+    /**
+     * Loads TX aux data required for tx key.
+     */
+    virtual void load_tx_key_data(tx_key_data_t & res, const std::string & tx_aux_data) =0;
+
+    /**
+     * Decrypts TX keys.
+     */
+    virtual void get_tx_key(
+        std::vector<::crypto::secret_key> & tx_keys,
+        const tx_key_data_t & tx_aux_data,
+        const ::crypto::secret_key & view_key_priv) =0;
+
+    /**
+     * Live refresh support check
+     */
+    virtual bool is_live_refresh_supported() const { return false; };
+
+    /**
+     * Starts live refresh process with the device
+     */
+    virtual void live_refresh_start() =0;
+
+    /**
+     * One live refresh step
+     */
+    virtual void live_refresh(
+        const ::crypto::secret_key & view_key_priv,
+        const crypto::public_key& out_key,
+        const crypto::key_derivation& recv_derivation,
+        size_t real_output_index,
+        const cryptonote::subaddress_index& received_index,
+        cryptonote::keypair& in_ephemeral,
+        crypto::key_image& ki
+    ) =0;
+
+    /**
+     * Live refresh process termination
+     */
+    virtual void live_refresh_finish() =0;
   };
 }