diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp index 8952a43dd..3c89c68a0 100644 --- a/src/simplewallet/simplewallet.cpp +++ b/src/simplewallet/simplewallet.cpp @@ -190,7 +190,7 @@ namespace const char* USAGE_CHECK_RESERVE_PROOF("check_reserve_proof
[]"); const char* USAGE_SHOW_TRANSFERS("show_transfers [in|out|pending|failed|pool|coinbase] [index=[,,...]] [ []]"); const char* USAGE_UNSPENT_OUTPUTS("unspent_outputs [index=[,,...]] [ []]"); - const char* USAGE_RESCAN_BC("rescan_bc [hard]"); + const char* USAGE_RESCAN_BC("rescan_bc [hard|soft|keep_ki] [start_height=0]"); const char* USAGE_SET_TX_NOTE("set_tx_note [free text note]"); const char* USAGE_GET_TX_NOTE("get_tx_note "); const char* USAGE_GET_DESCRIPTION("get_description"); @@ -4748,8 +4748,16 @@ bool simple_wallet::refresh_main(uint64_t start_height, enum ResetType reset, bo LOCK_IDLE_SCOPE(); + crypto::hash transfer_hash_pre{}; + uint64_t height_pre, height_post; + if (reset != ResetNone) - m_wallet->rescan_blockchain(reset == ResetHard, false); + { + if (reset == ResetSoftKeepKI) + height_pre = m_wallet->hash_m_transfers(-1, transfer_hash_pre); + + m_wallet->rescan_blockchain(reset == ResetHard, false, reset == ResetSoftKeepKI); + } #ifdef HAVE_READLINE rdln::suspend_readline pause_readline; @@ -4766,6 +4774,18 @@ bool simple_wallet::refresh_main(uint64_t start_height, enum ResetType reset, bo m_in_manual_refresh.store(true, std::memory_order_relaxed); epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){m_in_manual_refresh.store(false, std::memory_order_relaxed);}); m_wallet->refresh(m_wallet->is_trusted_daemon(), start_height, fetched_blocks, received_money); + + if (reset == ResetSoftKeepKI) + { + m_wallet->finish_rescan_bc_keep_key_images(height_pre, transfer_hash_pre); + + height_post = m_wallet->get_num_transfer_details(); + if (height_pre != height_post) + { + message_writer() << tr("New transfer received since rescan was started. Key images are incomplete."); + } + } + ok = true; // Clear line "Height xxx of xxx" std::cout << "\r \r"; @@ -7773,18 +7793,43 @@ bool simple_wallet::unspent_outputs(const std::vector &args_) //---------------------------------------------------------------------------------------------------- bool simple_wallet::rescan_blockchain(const std::vector &args_) { - bool hard = false; + uint64_t start_height = 0; + ResetType reset_type = ResetSoft; + if (!args_.empty()) { - if (args_[0] != "hard") + if (args_[0] == "hard") + { + reset_type = ResetHard; + } + else if (args_[0] == "soft") + { + reset_type = ResetSoft; + } + else if (args_[0] == "keep_ki") + { + reset_type = ResetSoftKeepKI; + } + else { PRINT_USAGE(USAGE_RESCAN_BC); return true; } - hard = true; + + if (args_.size() > 1) + { + try + { + start_height = boost::lexical_cast( args_[1] ); + } + catch(const boost::bad_lexical_cast &) + { + start_height = 0; + } + } } - if (hard) + if (reset_type == ResetHard) { message_writer() << tr("Warning: this will lose any information which can not be recovered from the blockchain."); message_writer() << tr("This includes destination addresses, tx secret keys, tx notes, etc"); @@ -7795,7 +7840,20 @@ bool simple_wallet::rescan_blockchain(const std::vector &args_) return true; } } - return refresh_main(0, hard ? ResetHard : ResetSoft, true); + + const uint64_t wallet_from_height = m_wallet->get_refresh_from_block_height(); + if (start_height > wallet_from_height) + { + message_writer() << tr("Warning: your restore height is higher than wallet restore height: ") << wallet_from_height; + std::string confirm = input_line(tr("Rescan anyway ? (Y/Yes/N/No): ")); + if(!std::cin.eof()) + { + if (!command_line::is_yes(confirm)) + return true; + } + } + + return refresh_main(start_height, reset_type, true); } //---------------------------------------------------------------------------------------------------- void simple_wallet::check_for_messages() diff --git a/src/simplewallet/simplewallet.h b/src/simplewallet/simplewallet.h index 6655fda27..cf5458175 100644 --- a/src/simplewallet/simplewallet.h +++ b/src/simplewallet/simplewallet.h @@ -84,7 +84,7 @@ namespace cryptonote std::string get_command_usage(const std::vector &args); private: - enum ResetType { ResetNone, ResetSoft, ResetHard }; + enum ResetType { ResetNone, ResetSoft, ResetHard, ResetSoftKeepKI }; bool handle_command_line(const boost::program_options::variables_map& vm); diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp index 8bb886c6d..f118ea68b 100644 --- a/src/wallet/wallet2.cpp +++ b/src/wallet/wallet2.cpp @@ -3222,6 +3222,26 @@ bool wallet2::clear() m_device_last_key_image_sync = 0; return true; } +//---------------------------------------------------------------------------------------------------- +void wallet2::clear_soft(bool keep_key_images) +{ + m_blockchain.clear(); + m_transfers.clear(); + if (!keep_key_images) + m_key_images.clear(); + m_pub_keys.clear(); + m_unconfirmed_txs.clear(); + m_payments.clear(); + m_confirmed_txs.clear(); + m_unconfirmed_payments.clear(); + m_scanned_pool_txs[0].clear(); + m_scanned_pool_txs[1].clear(); + + cryptonote::block b; + generate_genesis(b); + m_blockchain.push_back(get_block_hash(b)); + m_last_block_reward = cryptonote::get_outs_money_amount(b.miner_tx); +} /*! * \brief Stores wallet information to wallet file. @@ -5468,8 +5488,12 @@ void wallet2::rescan_spent() } } //---------------------------------------------------------------------------------------------------- -void wallet2::rescan_blockchain(bool hard, bool refresh) +void wallet2::rescan_blockchain(bool hard, bool refresh, bool keep_key_images) { + CHECK_AND_ASSERT_THROW_MES(!hard || !keep_key_images, "Cannot preserve key images on hard rescan"); + const size_t transfers_cnt = m_transfers.size(); + crypto::hash transfers_hash{}; + if(hard) { clear(); @@ -5477,25 +5501,16 @@ void wallet2::rescan_blockchain(bool hard, bool refresh) } else { - m_blockchain.clear(); - m_transfers.clear(); - m_key_images.clear(); - m_pub_keys.clear(); - m_unconfirmed_txs.clear(); - m_payments.clear(); - m_confirmed_txs.clear(); - m_unconfirmed_payments.clear(); - m_scanned_pool_txs[0].clear(); - m_scanned_pool_txs[1].clear(); - - cryptonote::block b; - generate_genesis(b); - m_blockchain.push_back(get_block_hash(b)); - m_last_block_reward = cryptonote::get_outs_money_amount(b.miner_tx); + if (keep_key_images && refresh) + hash_m_transfers((int64_t) transfers_cnt, transfers_hash); + clear_soft(keep_key_images); } if (refresh) this->refresh(false); + + if (refresh && keep_key_images) + finish_rescan_bc_keep_key_images(transfers_cnt, transfers_hash); } //---------------------------------------------------------------------------------------------------- bool wallet2::is_transfer_unlocked(const transfer_details& td) const @@ -11392,6 +11407,7 @@ uint64_t wallet2::import_key_images(const std::vector(in).k_image); if (it != m_key_images.end()) { + THROW_WALLET_EXCEPTION_IF(it->second >= m_transfers.size(), error::wallet_internal_error, std::string("Key images cache contains illegal transfer offset: ") + std::to_string(it->second) + std::string(" m_transfers.size() = ") + std::to_string(m_transfers.size())); const transfer_details& td = m_transfers[it->second]; uint64_t amount = boost::get(in).amount; if (amount > 0) @@ -12490,5 +12506,61 @@ void wallet2::throw_on_rpc_response_error(const boost::optional &st THROW_WALLET_EXCEPTION_IF(*status == CORE_RPC_STATUS_BUSY, tools::error::daemon_busy, method); THROW_WALLET_EXCEPTION_IF(*status != CORE_RPC_STATUS_OK, tools::error::wallet_generic_rpc_error, method, m_trusted_daemon ? *status : "daemon error"); } - +//---------------------------------------------------------------------------------------------------- +void wallet2::hash_m_transfer(const transfer_details & transfer, crypto::hash &hash) const +{ + KECCAK_CTX state; + keccak_init(&state); + keccak_update(&state, (const uint8_t *) transfer.m_txid.data, sizeof(transfer.m_txid.data)); + keccak_update(&state, (const uint8_t *) transfer.m_internal_output_index, sizeof(transfer.m_internal_output_index)); + keccak_update(&state, (const uint8_t *) transfer.m_global_output_index, sizeof(transfer.m_global_output_index)); + keccak_update(&state, (const uint8_t *) transfer.m_amount, sizeof(transfer.m_amount)); + keccak_finish(&state, (uint8_t *) hash.data); +} +//---------------------------------------------------------------------------------------------------- +uint64_t wallet2::hash_m_transfers(int64_t transfer_height, crypto::hash &hash) const +{ + CHECK_AND_ASSERT_THROW_MES(transfer_height > (int64_t)m_transfers.size(), "Hash height is greater than number of transfers"); + + KECCAK_CTX state; + crypto::hash tmp_hash{}; + uint64_t current_height = 0; + + keccak_init(&state); + for(const transfer_details & transfer : m_transfers){ + if (transfer_height >= 0 && current_height >= (uint64_t)transfer_height){ + break; + } + + hash_m_transfer(transfer, tmp_hash); + keccak_update(&state, (const uint8_t *) transfer.m_block_height, sizeof(transfer.m_block_height)); + keccak_update(&state, (const uint8_t *) tmp_hash.data, sizeof(tmp_hash.data)); + current_height += 1; + } + + keccak_finish(&state, (uint8_t *) hash.data); + return current_height; +} +//---------------------------------------------------------------------------------------------------- +void wallet2::finish_rescan_bc_keep_key_images(uint64_t transfer_height, const crypto::hash &hash) +{ + // Compute hash of m_transfers, if differs there had to be BC reorg. + crypto::hash new_transfers_hash{}; + hash_m_transfers((int64_t) transfer_height, new_transfers_hash); + + if (new_transfers_hash != hash) + { + // Soft-Reset to avoid inconsistency in case of BC reorg. + clear_soft(false); // keep_key_images works only with soft reset. + THROW_WALLET_EXCEPTION_IF(true, error::wallet_internal_error, "Transfers changed during rescan, soft or hard rescan is needed"); + } + + // Restore key images in m_transfers from m_key_images + for(auto it = m_key_images.begin(); it != m_key_images.end(); it++) + { + THROW_WALLET_EXCEPTION_IF(it->second >= m_transfers.size(), error::wallet_internal_error, "Key images cache contains illegal transfer offset"); + m_transfers[it->second].m_key_image = it->first; + m_transfers[it->second].m_key_image_known = true; + } +} } diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h index 36271c82a..be48895ae 100644 --- a/src/wallet/wallet2.h +++ b/src/wallet/wallet2.h @@ -818,7 +818,7 @@ namespace tools uint64_t get_blockchain_current_height() const { return m_light_wallet_blockchain_height ? m_light_wallet_blockchain_height : m_blockchain.size(); } void rescan_spent(); - void rescan_blockchain(bool hard, bool refresh = true); + void rescan_blockchain(bool hard, bool refresh = true, bool keep_key_images = false); bool is_transfer_unlocked(const transfer_details& td) const; bool is_transfer_unlocked(uint64_t unlock_time, uint64_t block_height) const; @@ -1248,6 +1248,9 @@ namespace tools void set_tx_notify(const std::shared_ptr ¬ify) { m_tx_notify = notify; } bool is_tx_spendtime_unlocked(uint64_t unlock_time, uint64_t block_height) const; + void hash_m_transfer(const transfer_details & transfer, crypto::hash &hash) const; + uint64_t hash_m_transfers(int64_t transfer_height, crypto::hash &hash) const; + void finish_rescan_bc_keep_key_images(uint64_t transfer_height, const crypto::hash &hash); private: /*! @@ -1269,6 +1272,7 @@ namespace tools void detach_blockchain(uint64_t height); void get_short_chain_history(std::list& ids, uint64_t granularity = 1) const; bool clear(); + void clear_soft(bool keep_key_images=false); void pull_blocks(uint64_t start_height, uint64_t& blocks_start_height, const std::list &short_chain_history, std::vector &blocks, std::vector &o_indices); void pull_hashes(uint64_t start_height, uint64_t& blocks_start_height, const std::list &short_chain_history, std::vector &hashes); void fast_refresh(uint64_t stop_height, uint64_t &blocks_start_height, std::list &short_chain_history, bool force = false);