blockchain_utilities: new blockchain_blackball tool
It scans for known spent outputs and stores their public keys in a database which can then be read by the wallet, which can then avoid using those as fake outs in new transactions. Usage: monero-blockchain-blackball db1 db2... This uses the shared database in ~/.shared-ringdb
This commit is contained in:
moneromooo-monero
parent
d29ea0455a
commit
df6fad4c62
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@ -67,6 +67,20 @@ monero_private_headers(blockchain_export
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${blockchain_export_private_headers})
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set(blockchain_blackball_sources
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blockchain_blackball.cpp
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)
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set(blockchain_blackball_private_headers
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bootstrap_file.h
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blocksdat_file.h
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bootstrap_serialization.h
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)
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monero_private_headers(blockchain_blackball
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${blockchain_blackball_private_headers})
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monero_add_executable(blockchain_import
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${blockchain_import_sources}
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${blockchain_import_private_headers}
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@ -117,3 +131,26 @@ set_property(TARGET blockchain_export
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OUTPUT_NAME "monero-blockchain-export")
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install(TARGETS blockchain_export DESTINATION bin)
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monero_add_executable(blockchain_blackball
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${blockchain_blackball_sources}
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${blockchain_blackball_private_headers})
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target_link_libraries(blockchain_blackball
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PRIVATE
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wallet
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cryptonote_core
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blockchain_db
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p2p
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version
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epee
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${Boost_FILESYSTEM_LIBRARY}
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${Boost_SYSTEM_LIBRARY}
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${Boost_THREAD_LIBRARY}
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${CMAKE_THREAD_LIBS_INIT}
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${EXTRA_LIBRARIES})
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set_property(TARGET blockchain_blackball
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PROPERTY
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OUTPUT_NAME "monero-blockchain-blackball")
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install(TARGETS blockchain_blackball DESTINATION bin)
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@ -0,0 +1,423 @@
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// Copyright (c) 2014-2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <boost/range/adaptor/transformed.hpp>
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#include <boost/algorithm/string.hpp>
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#include "common/command_line.h"
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#include "common/varint.h"
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#include "cryptonote_core/tx_pool.h"
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#include "cryptonote_core/cryptonote_core.h"
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#include "cryptonote_core/blockchain.h"
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#include "blockchain_db/blockchain_db.h"
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#include "blockchain_db/db_types.h"
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#include "wallet/ringdb.h"
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#include "version.h"
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#undef MONERO_DEFAULT_LOG_CATEGORY
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#define MONERO_DEFAULT_LOG_CATEGORY "bcutil"
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namespace po = boost::program_options;
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using namespace epee;
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using namespace cryptonote;
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struct output_data
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{
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uint64_t amount;
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uint64_t index;
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output_data(uint64_t a, uint64_t i): amount(a), index(i) {}
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bool operator==(const output_data &other) const { return other.amount == amount && other.index == index; }
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};
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namespace std
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{
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template<> struct hash<output_data>
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{
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size_t operator()(const output_data &od) const
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{
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const uint64_t data[2] = {od.amount, od.index};
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crypto::hash h;
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crypto::cn_fast_hash(data, 2 * sizeof(uint64_t), h);
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return reinterpret_cast<const std::size_t &>(h);
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}
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};
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}
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static std::string get_default_db_path()
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{
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boost::filesystem::path dir = tools::get_default_data_dir();
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// remove .bitmonero, replace with .shared-ringdb
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dir = dir.remove_filename();
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dir /= ".shared-ringdb";
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return dir.string();
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}
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static bool for_all_transactions(const std::string &filename, const std::function<bool(const cryptonote::transaction_prefix&)> &f)
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{
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MDB_env *env;
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MDB_dbi dbi;
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MDB_txn *txn;
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MDB_cursor *cur;
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int dbr;
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bool tx_active = false;
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dbr = mdb_env_create(&env);
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if (dbr) throw std::runtime_error("Failed to create LDMB environment: " + std::string(mdb_strerror(dbr)));
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dbr = mdb_env_set_maxdbs(env, 2);
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if (dbr) throw std::runtime_error("Failed to set max env dbs: " + std::string(mdb_strerror(dbr)));
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const std::string actual_filename = filename;
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dbr = mdb_env_open(env, actual_filename.c_str(), 0, 0664);
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if (dbr) throw std::runtime_error("Failed to open rings database file '"
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+ actual_filename + "': " + std::string(mdb_strerror(dbr)));
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dbr = mdb_txn_begin(env, NULL, 0, &txn);
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if (dbr) throw std::runtime_error("Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
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epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
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tx_active = true;
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dbr = mdb_dbi_open(txn, "txs_pruned", MDB_INTEGERKEY, &dbi);
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if (dbr)
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dbr = mdb_dbi_open(txn, "txs", MDB_INTEGERKEY, &dbi);
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if (dbr) throw std::runtime_error("Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
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dbr = mdb_cursor_open(txn, dbi, &cur);
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if (dbr) throw std::runtime_error("Failed to create LMDB cursor: " + std::string(mdb_strerror(dbr)));
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MDB_val k;
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MDB_val v;
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bool fret = true;
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MDB_cursor_op op = MDB_FIRST;
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while (1)
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{
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int ret = mdb_cursor_get(cur, &k, &v, op);
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op = MDB_NEXT;
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if (ret == MDB_NOTFOUND)
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break;
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if (ret)
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throw std::runtime_error("Failed to enumerate transactions: " + std::string(mdb_strerror(ret)));
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cryptonote::transaction_prefix tx;
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blobdata bd;
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bd.assign(reinterpret_cast<char*>(v.mv_data), v.mv_size);
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std::stringstream ss;
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ss << bd;
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binary_archive<false> ba(ss);
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bool r = do_serialize(ba, tx);
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CHECK_AND_ASSERT_MES(r, false, "Failed to parse transaction from blob");
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if (!f(tx)) {
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fret = false;
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break;
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}
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}
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mdb_cursor_close(cur);
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mdb_txn_commit(txn);
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tx_active = false;
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mdb_dbi_close(env, dbi);
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mdb_env_close(env);
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return fret;
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}
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int main(int argc, char* argv[])
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{
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TRY_ENTRY();
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epee::string_tools::set_module_name_and_folder(argv[0]);
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std::string default_db_type = "lmdb";
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std::string available_dbs = cryptonote::blockchain_db_types(", ");
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available_dbs = "available: " + available_dbs;
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uint32_t log_level = 0;
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tools::on_startup();
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boost::filesystem::path output_file_path;
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po::options_description desc_cmd_only("Command line options");
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po::options_description desc_cmd_sett("Command line options and settings options");
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const command_line::arg_descriptor<std::string, false, true, 2> arg_blackball_db_dir = {
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"blackball-db-dir", "Specify blackball database directory",
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get_default_db_path(),
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{{ &arg_testnet_on, &arg_stagenet_on }},
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[](std::array<bool, 2> testnet_stagenet, bool defaulted, std::string val) {
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if (testnet_stagenet[0])
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return (boost::filesystem::path(val) / "testnet").string();
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else if (testnet_stagenet[1])
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return (boost::filesystem::path(val) / "stagenet").string();
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return val;
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}
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};
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const command_line::arg_descriptor<std::string> arg_log_level = {"log-level", "0-4 or categories", ""};
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const command_line::arg_descriptor<std::string> arg_database = {
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"database", available_dbs.c_str(), default_db_type
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};
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const command_line::arg_descriptor<bool> arg_rct_only = {"rct-only", "Only work on ringCT outputs", false};
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const command_line::arg_descriptor<std::vector<std::string> > arg_inputs = {"inputs", "Path to Monero DB, and path to any fork DBs"};
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command_line::add_arg(desc_cmd_sett, arg_blackball_db_dir);
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command_line::add_arg(desc_cmd_sett, cryptonote::arg_testnet_on);
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command_line::add_arg(desc_cmd_sett, cryptonote::arg_stagenet_on);
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command_line::add_arg(desc_cmd_sett, arg_log_level);
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command_line::add_arg(desc_cmd_sett, arg_database);
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command_line::add_arg(desc_cmd_sett, arg_rct_only);
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command_line::add_arg(desc_cmd_sett, arg_inputs);
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command_line::add_arg(desc_cmd_only, command_line::arg_help);
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po::options_description desc_options("Allowed options");
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desc_options.add(desc_cmd_only).add(desc_cmd_sett);
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po::positional_options_description positional_options;
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positional_options.add(arg_inputs.name, -1);
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po::variables_map vm;
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bool r = command_line::handle_error_helper(desc_options, [&]()
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{
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auto parser = po::command_line_parser(argc, argv).options(desc_options).positional(positional_options);
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po::store(parser.run(), vm);
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po::notify(vm);
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return true;
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});
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if (! r)
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return 1;
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if (command_line::get_arg(vm, command_line::arg_help))
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{
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std::cout << "Monero '" << MONERO_RELEASE_NAME << "' (v" << MONERO_VERSION_FULL << ")" << ENDL << ENDL;
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std::cout << desc_options << std::endl;
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return 1;
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}
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mlog_configure(mlog_get_default_log_path("monero-blockchain-blackball.log"), true);
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if (!command_line::is_arg_defaulted(vm, arg_log_level))
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mlog_set_log(command_line::get_arg(vm, arg_log_level).c_str());
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else
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mlog_set_log(std::string(std::to_string(log_level) + ",bcutil:INFO").c_str());
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LOG_PRINT_L0("Starting...");
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bool opt_testnet = command_line::get_arg(vm, cryptonote::arg_testnet_on);
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bool opt_stagenet = command_line::get_arg(vm, cryptonote::arg_stagenet_on);
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network_type net_type = opt_testnet ? TESTNET : opt_stagenet ? STAGENET : MAINNET;
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output_file_path = command_line::get_arg(vm, arg_blackball_db_dir);
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bool opt_rct_only = command_line::get_arg(vm, arg_rct_only);
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std::string db_type = command_line::get_arg(vm, arg_database);
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if (!cryptonote::blockchain_valid_db_type(db_type))
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{
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std::cerr << "Invalid database type: " << db_type << std::endl;
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return 1;
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}
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// If we wanted to use the memory pool, we would set up a fake_core.
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// Use Blockchain instead of lower-level BlockchainDB for two reasons:
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// 1. Blockchain has the init() method for easy setup
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// 2. exporter needs to use get_current_blockchain_height(), get_block_id_by_height(), get_block_by_hash()
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//
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// cannot match blockchain_storage setup above with just one line,
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// e.g.
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// Blockchain* core_storage = new Blockchain(NULL);
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// because unlike blockchain_storage constructor, which takes a pointer to
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// tx_memory_pool, Blockchain's constructor takes tx_memory_pool object.
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LOG_PRINT_L0("Initializing source blockchain (BlockchainDB)");
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const std::vector<std::string> inputs = command_line::get_arg(vm, arg_inputs);
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if (inputs.empty())
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{
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LOG_PRINT_L0("No inputs given");
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return 1;
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}
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std::vector<std::unique_ptr<Blockchain>> core_storage(inputs.size());
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tx_memory_pool m_mempool(*(Blockchain*)NULL);
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for (size_t n = 0; n < inputs.size(); ++n)
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{
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core_storage[n].reset(new Blockchain(m_mempool));
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BlockchainDB* db = new_db(db_type);
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if (db == NULL)
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{
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LOG_ERROR("Attempted to use non-existent database type: " << db_type);
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throw std::runtime_error("Attempting to use non-existent database type");
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}
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LOG_PRINT_L0("database: " << db_type);
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std::string filename = inputs[n];
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while (boost::ends_with(filename, "/") || boost::ends_with(filename, "\\"))
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filename.pop_back();
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LOG_PRINT_L0("Loading blockchain from folder " << filename << " ...");
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try
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{
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db->open(filename, DBF_RDONLY);
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}
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catch (const std::exception& e)
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{
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LOG_PRINT_L0("Error opening database: " << e.what());
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return 1;
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}
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r = core_storage[n]->init(db, net_type);
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CHECK_AND_ASSERT_MES(r, 1, "Failed to initialize source blockchain storage");
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LOG_PRINT_L0("Source blockchain storage initialized OK");
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}
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boost::filesystem::path direc(output_file_path.string());
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if (boost::filesystem::exists(direc))
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{
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if (!boost::filesystem::is_directory(direc))
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{
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MERROR("LMDB needs a directory path, but a file was passed: " << output_file_path.string());
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return 1;
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}
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}
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else
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{
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if (!boost::filesystem::create_directories(direc))
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{
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MERROR("Failed to create directory: " << output_file_path.string());
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return 1;
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}
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}
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LOG_PRINT_L0("Scanning for blackballable outputs...");
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size_t done = 0;
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std::unordered_map<crypto::key_image, std::vector<uint64_t>> relative_rings;
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std::unordered_map<output_data, std::unordered_set<crypto::key_image>> outputs;
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std::unordered_set<output_data> spent, newly_spent;
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for (size_t n = 0; n < inputs.size(); ++n)
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{
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LOG_PRINT_L0("Reading blockchain from " << inputs[n]);
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for_all_transactions(inputs[n], [&](const cryptonote::transaction_prefix &tx)->bool
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{
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for (const auto &in: tx.vin)
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{
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if (in.type() != typeid(txin_to_key))
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continue;
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const auto &txin = boost::get<txin_to_key>(in);
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if (opt_rct_only && txin.amount != 0)
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continue;
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const std::vector<uint64_t> absolute = cryptonote::relative_output_offsets_to_absolute(txin.key_offsets);
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if (n == 0)
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for (uint64_t out: absolute)
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outputs[output_data(txin.amount, out)].insert(txin.k_image);
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std::vector<uint64_t> new_ring = txin.key_offsets;
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const uint32_t ring_size = txin.key_offsets.size();
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if (ring_size == 1)
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{
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const crypto::public_key pkey = core_storage[n]->get_output_key(txin.amount, txin.key_offsets[0]);
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MINFO("Blackballing output " << pkey << ", due to being used in a 1-ring");
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tools::ringdb::blackball(output_file_path.string(), pkey);
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newly_spent.insert(output_data(txin.amount, txin.key_offsets[0]));
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spent.insert(output_data(txin.amount, txin.key_offsets[0]));
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}
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else if (relative_rings.find(txin.k_image) != relative_rings.end())
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{
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MINFO("Key image " << txin.k_image << " already seen: rings " <<
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boost::join(relative_rings[txin.k_image] | boost::adaptors::transformed([](uint64_t out){return std::to_string(out);}), " ") <<
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", " << boost::join(txin.key_offsets | boost::adaptors::transformed([](uint64_t out){return std::to_string(out);}), " "));
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if (relative_rings[txin.k_image] != txin.key_offsets)
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{
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MINFO("Rings are different");
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const std::vector<uint64_t> r0 = cryptonote::relative_output_offsets_to_absolute(relative_rings[txin.k_image]);
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const std::vector<uint64_t> r1 = cryptonote::relative_output_offsets_to_absolute(txin.key_offsets);
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std::vector<uint64_t> common;
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for (uint64_t out: r0)
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{
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if (std::find(r1.begin(), r1.end(), out) != r1.end())
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common.push_back(out);
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}
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if (common.empty())
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{
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MERROR("Rings for the same key image are disjoint");
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}
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||||
else if (common.size() == 1)
|
||||
{
|
||||
const crypto::public_key pkey = core_storage[n]->get_output_key(txin.amount, common[0]);
|
||||
MINFO("Blackballing output " << pkey << ", due to being used in rings with a single common element");
|
||||
tools::ringdb::blackball(output_file_path.string(), pkey);
|
||||
newly_spent.insert(output_data(txin.amount, common[0]));
|
||||
spent.insert(output_data(txin.amount, common[0]));
|
||||
}
|
||||
else
|
||||
{
|
||||
MINFO("The intersection has more than one element, it's still ok");
|
||||
for (const auto &out: r0)
|
||||
if (std::find(common.begin(), common.end(), out) != common.end())
|
||||
new_ring.push_back(out);
|
||||
new_ring = cryptonote::absolute_output_offsets_to_relative(new_ring);
|
||||
}
|
||||
}
|
||||
}
|
||||
relative_rings[txin.k_image] = new_ring;
|
||||
}
|
||||
return true;
|
||||
});
|
||||
}
|
||||
|
||||
while (!newly_spent.empty())
|
||||
{
|
||||
LOG_PRINT_L0("Secondary pass due to " << newly_spent.size() << " newly found spent outputs");
|
||||
std::unordered_set<output_data> work_spent = std::move(newly_spent);
|
||||
newly_spent.clear();
|
||||
|
||||
for (const output_data &od: work_spent)
|
||||
{
|
||||
for (const crypto::key_image &ki: outputs[od])
|
||||
{
|
||||
std::vector<uint64_t> absolute = cryptonote::relative_output_offsets_to_absolute(relative_rings[ki]);
|
||||
size_t known = 0;
|
||||
uint64_t last_unknown = 0;
|
||||
for (uint64_t out: absolute)
|
||||
{
|
||||
output_data new_od(od.amount, out);
|
||||
if (spent.find(new_od) != spent.end())
|
||||
++known;
|
||||
else
|
||||
last_unknown = out;
|
||||
}
|
||||
if (known == absolute.size() - 1)
|
||||
{
|
||||
const crypto::public_key pkey = core_storage[0]->get_output_key(od.amount, last_unknown);
|
||||
MINFO("Blackballing output " << pkey << ", due to being used in rings where all other outputs are known to be spent");
|
||||
tools::ringdb::blackball(output_file_path.string(), pkey);
|
||||
newly_spent.insert(output_data(od.amount, last_unknown));
|
||||
spent.insert(output_data(od.amount, last_unknown));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
LOG_PRINT_L0("Blockchain blackball data exported OK");
|
||||
return 0;
|
||||
|
||||
CATCH_ENTRY("Export error", 1);
|
||||
}
|
||||
Loading…
Reference in New Issue