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// Copyright (c) 2017-2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
#ifndef MONERO_DEVICE_TREZOR_H
#define MONERO_DEVICE_TREZOR_H
#include "trezor.hpp"
#include "device/device.hpp"
#ifdef WITH_DEVICE_TREZOR
#include <cstddef>
#include <string>
#include <boost/scope_exit.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/recursive_mutex.hpp>
#include "device/device_default.hpp"
#include "device/device_cold.hpp"
#include "cryptonote_config.h"
#include "device_trezor_base.hpp"
#endif
namespace hw {
namespace trezor {
void register_all();
void register_all(std::map<std::string, std::unique_ptr<device>> ®istry);
#ifdef WITH_DEVICE_TREZOR
class device_trezor;
/**
* Main device
*/
class device_trezor : public hw::trezor::device_trezor_base, public hw::device_cold {
protected:
std::atomic<bool> m_live_refresh_in_progress;
std::chrono::steady_clock::time_point m_last_live_refresh_time;
std::unique_ptr<boost::thread> m_live_refresh_thread;
std::atomic<bool> m_live_refresh_thread_running;
bool m_live_refresh_enabled;
size_t m_num_transations_to_sign;
unsigned client_version();
void transaction_versions_check(const ::tools::wallet2::unsigned_tx_set & unsigned_tx, hw::tx_aux_data & aux_data);
void transaction_pre_check(std::shared_ptr<messages::monero::MoneroTransactionInitRequest> init_msg);
void transaction_check(const protocol::tx::TData & tdata, const hw::tx_aux_data & aux_data);
void device_state_initialize_unsafe() override;
void live_refresh_start_unsafe();
void live_refresh_finish_unsafe();
void live_refresh_thread_main();
/**
* Signs particular transaction idx in the unsigned set, keeps state in the signer
*/
virtual void tx_sign(wallet_shim * wallet,
const ::tools::wallet2::unsigned_tx_set & unsigned_tx,
size_t idx,
hw::tx_aux_data & aux_data,
std::shared_ptr<protocol::tx::Signer> & signer);
public:
device_trezor();
virtual ~device_trezor() override;
device_trezor(const device_trezor &device) = delete ;
device_trezor& operator=(const device_trezor &device) = delete;
explicit operator bool() const override {return true;}
bool init() override;
bool release() override;
bool disconnect() override;
device_protocol_t device_protocol() const override { return PROTOCOL_COLD; };
bool has_ki_cold_sync() const override { return true; }
bool has_tx_cold_sign() const override { return true; }
void set_network_type(cryptonote::network_type network_type) override { this->network_type = network_type; }
void set_live_refresh_enabled(bool enabled) { m_live_refresh_enabled = enabled; }
bool live_refresh_enabled() const { return m_live_refresh_enabled; }
/* ======================================================================= */
/* WALLET & ADDRESS */
/* ======================================================================= */
bool get_public_address(cryptonote::account_public_address &pubkey) override;
bool get_secret_keys(crypto::secret_key &viewkey , crypto::secret_key &spendkey) override;
void display_address(const cryptonote::subaddress_index& index, const boost::optional<crypto::hash8> &payment_id) override;
/* ======================================================================= */
/* TREZOR PROTOCOL */
/* ======================================================================= */
/**
* Get address. Throws.
*/
std::shared_ptr<messages::monero::MoneroAddress> get_address(
const boost::optional<cryptonote::subaddress_index> & subaddress = boost::none,
const boost::optional<crypto::hash8> & payment_id = boost::none,
bool show_address = false,
const boost::optional<std::vector<uint32_t>> & path = boost::none,
const boost::optional<cryptonote::network_type> & network_type = boost::none);
/**
* Get watch key from device. Throws.
*/
std::shared_ptr<messages::monero::MoneroWatchKey> get_view_key(
const boost::optional<std::vector<uint32_t>> & path = boost::none,
const boost::optional<cryptonote::network_type> & network_type = boost::none);
/**
* Get_tx_key support check
*/
bool is_get_tx_key_supported() const override;
/**
* Loads tx aux data
*/
void load_tx_key_data(::hw::device_cold::tx_key_data_t & res, const std::string & tx_aux_data) override;
/**
* TX key load with the Trezor
*/
void get_tx_key(
std::vector<::crypto::secret_key> & tx_keys,
const ::hw::device_cold::tx_key_data_t & tx_aux_data,
const ::crypto::secret_key & view_key_priv) override;
/**
* Key image sync with the Trezor.
*/
void ki_sync(wallet_shim * wallet,
const std::vector<::tools::wallet2::transfer_details> & transfers,
hw::device_cold::exported_key_image & ski) override;
bool is_live_refresh_supported() const override;
bool is_live_refresh_enabled() const;
bool has_ki_live_refresh() const override;
void live_refresh_start() override;
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
) override;
void live_refresh_finish() override;
/**
* Letting device know the KI computation started / ended.
* During refresh
*/
void computing_key_images(bool started) override;
/**
* Implements hw::device interface
* called from generate_key_image_helper_precomp()
*/
bool compute_key_image(
const ::cryptonote::account_keys& ack,
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) override;
/**
* Signs unsigned transaction with the Trezor.
*/
void tx_sign(wallet_shim * wallet,
const ::tools::wallet2::unsigned_tx_set & unsigned_tx,
::tools::wallet2::signed_tx_set & signed_tx,
hw::tx_aux_data & aux_data) override;
};
#endif
}
}
#endif //MONERO_DEVICE_TREZOR_H
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