// Copyright (c) 2018-2022, 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. #include #include #include "include_base_utils.h" #include "cryptonote_config.h" #include "wallet_rpc_helpers.h" #include "wallet2.h" #include "cryptonote_basic/cryptonote_format_utils.h" #include "rpc/core_rpc_server_commands_defs.h" #include "rpc/rpc_payment_signature.h" #include "misc_language.h" #include "cryptonote_basic/cryptonote_basic_impl.h" #include "int-util.h" #include "crypto/crypto.h" #include "cryptonote_basic/blobdatatype.h" #include "common/i18n.h" #include "common/util.h" #include "common/threadpool.h" #undef MONERO_DEFAULT_LOG_CATEGORY #define MONERO_DEFAULT_LOG_CATEGORY "wallet.wallet2.rpc_payments" #define RPC_PAYMENT_POLL_PERIOD 10 /* seconds*/ namespace tools { //---------------------------------------------------------------------------------------------------- std::string wallet2::get_client_signature() const { return cryptonote::make_rpc_payment_signature(m_rpc_client_secret_key); } //---------------------------------------------------------------------------------------------------- bool wallet2::get_rpc_payment_info(bool mining, bool &payment_required, uint64_t &credits, uint64_t &diff, uint64_t &credits_per_hash_found, cryptonote::blobdata &hashing_blob, uint64_t &height, uint64_t &seed_height, crypto::hash &seed_hash, crypto::hash &next_seed_hash, uint32_t &cookie) { boost::optional result = m_node_rpc_proxy.get_rpc_payment_info(mining, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie); credits = m_rpc_payment_state.credits; if (result && *result != CORE_RPC_STATUS_OK) return false; return true; } //---------------------------------------------------------------------------------------------------- bool wallet2::daemon_requires_payment() { bool payment_required = false; uint64_t credits, diff, credits_per_hash_found, height, seed_height; uint32_t cookie; cryptonote::blobdata blob; crypto::hash seed_hash, next_seed_hash; return get_rpc_payment_info(false, payment_required, credits, diff, credits_per_hash_found, blob, height, seed_height, seed_hash, next_seed_hash, cookie) && payment_required; } //---------------------------------------------------------------------------------------------------- bool wallet2::make_rpc_payment(uint32_t nonce, uint32_t cookie, uint64_t &credits, uint64_t &balance) { cryptonote::COMMAND_RPC_ACCESS_SUBMIT_NONCE::request req = AUTO_VAL_INIT(req); cryptonote::COMMAND_RPC_ACCESS_SUBMIT_NONCE::response res = AUTO_VAL_INIT(res); req.nonce = nonce; req.cookie = cookie; m_daemon_rpc_mutex.lock(); uint64_t pre_call_credits = m_rpc_payment_state.credits; req.client = get_client_signature(); epee::json_rpc::error error; bool r = epee::net_utils::invoke_http_json_rpc("/json_rpc", "rpc_access_submit_nonce", req, res, error, *m_http_client, rpc_timeout); m_daemon_rpc_mutex.unlock(); THROW_ON_RPC_RESPONSE_ERROR_GENERIC(r, error, res, "rpc_access_submit_nonce"); THROW_WALLET_EXCEPTION_IF(res.credits < pre_call_credits, error::wallet_internal_error, "RPC payment did not increase balance"); if (m_rpc_payment_state.top_hash != res.top_hash) { m_rpc_payment_state.top_hash = res.top_hash; m_rpc_payment_state.stale = true; } m_rpc_payment_state.credits = res.credits; balance = res.credits; credits = balance - pre_call_credits; return true; } //---------------------------------------------------------------------------------------------------- bool wallet2::search_for_rpc_payment(uint64_t credits_target, uint32_t n_threads, const std::function &startfunc, const std::function &contfunc, const std::function &foundfunc, const std::function &errorfunc) { bool need_payment = false; bool payment_required; uint64_t credits, diff, credits_per_hash_found, height, seed_height; uint32_t cookie; unsigned int n_hashes = 0; cryptonote::blobdata hashing_blob; crypto::hash seed_hash, next_seed_hash; try { need_payment = get_rpc_payment_info(false, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie) && payment_required && credits < credits_target; if (!need_payment) return true; if (!startfunc(diff, credits_per_hash_found)) return true; } catch (const std::exception &e) { return false; } static std::atomic nonce(0); while (contfunc(n_hashes)) { try { need_payment = get_rpc_payment_info(true, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie) && payment_required && credits < credits_target; if (!need_payment) return true; } catch (const std::exception &e) { return false; } if (hashing_blob.empty()) { MERROR("Bad hashing blob from daemon"); if (errorfunc) errorfunc("Bad hashing blob from daemon, trying again"); epee::misc_utils::sleep_no_w(1000); continue; } if(n_threads == 0) n_threads = boost::thread::hardware_concurrency(); std::vector hash(n_threads); tools::threadpool& tpool = tools::threadpool::getInstanceForCompute(); tools::threadpool::waiter waiter(tpool); const uint32_t local_nonce = nonce += n_threads; // wrapping's OK for (size_t i = 0; i < n_threads; i++) { tpool.submit(&waiter, [&, i] { *(uint32_t*)(hashing_blob.data() + 39) = SWAP32LE(local_nonce-i); const uint8_t major_version = hashing_blob[0]; if (major_version >= RX_BLOCK_VERSION) { crypto::rx_slow_hash(seed_hash.data, hashing_blob.data(), hashing_blob.size(), hash[i].data); } else { int cn_variant = hashing_blob[0] >= 7 ? hashing_blob[0] - 6 : 0; crypto::cn_slow_hash(hashing_blob.data(), hashing_blob.size(), hash[i], cn_variant, height); } }); } waiter.wait(); n_hashes += n_threads; for(size_t i=0; i < n_threads; i++) { if (cryptonote::check_hash(hash[i], diff)) { uint64_t credits, balance; try { make_rpc_payment(local_nonce-i, cookie, credits, balance); if (credits != credits_per_hash_found) { MERROR("Found nonce, but daemon did not credit us with the expected amount"); if (errorfunc) errorfunc("Found nonce, but daemon did not credit us with the expected amount"); return false; } MDEBUG("Found nonce " << local_nonce-i << " at diff " << diff << ", gets us " << credits_per_hash_found << ", now " << balance << " credits"); if (!foundfunc(credits)) break; } catch (const tools::error::wallet_coded_rpc_error &e) { MWARNING("Found a local_nonce at diff " << diff << ", but failed to send it to the daemon"); if (errorfunc) errorfunc("Found nonce, but daemon errored out with error " + std::to_string(e.code()) + ": " + e.status() + ", continuing"); } catch (const std::exception &e) { MWARNING("Found a local_nonce at diff " << diff << ", but failed to send it to the daemon"); if (errorfunc) errorfunc("Found nonce, but daemon errored out with: '" + std::string(e.what()) + "', continuing"); } } } } return true; } //---------------------------------------------------------------------------------------------------- void wallet2::check_rpc_cost(const char *call, uint64_t post_call_credits, uint64_t pre_call_credits, double expected_cost) { return tools::check_rpc_cost(m_rpc_payment_state, call, post_call_credits, pre_call_credits, expected_cost); } //---------------------------------------------------------------------------------------------------- }