forked from monero-project/monero
/
cryptonote_core.cpp
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cryptonote_core.cpp
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// Copyright (c) 2014-2018, The Monero Project
// Copyright (c) 2018, The Loki 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.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#include <boost/algorithm/string.hpp>
#include "include_base_utils.h"
#include "string_tools.h"
using namespace epee;
#include <unordered_set>
#include <iomanip>
#include "cryptonote_core.h"
#include "common/command_line.h"
#include "common/util.h"
#include "common/updates.h"
#include "common/download.h"
#include "common/threadpool.h"
#include "common/command_line.h"
#include "warnings.h"
#include "crypto/crypto.h"
#include "cryptonote_config.h"
#include "cryptonote_tx_utils.h"
#include "misc_language.h"
#include "file_io_utils.h"
#include <csignal>
#include "checkpoints/checkpoints.h"
#include "ringct/rctTypes.h"
#include "blockchain_db/blockchain_db.h"
#include "ringct/rctSigs.h"
#include "version.h"
#include "wipeable_string.h"
#include "common/i18n.h"
#undef LOKI_DEFAULT_LOG_CATEGORY
#define LOKI_DEFAULT_LOG_CATEGORY "cn"
DISABLE_VS_WARNINGS(4355)
#define MERROR_VER(x) MCERROR("verify", x)
#define BAD_SEMANTICS_TXES_MAX_SIZE 100
namespace cryptonote
{
const command_line::arg_descriptor<bool, false> arg_testnet_on = {
"testnet"
, "Run on testnet. The wallet must be launched with --testnet flag."
, false
};
const command_line::arg_descriptor<bool, false> arg_stagenet_on = {
"stagenet"
, "Run on stagenet. The wallet must be launched with --stagenet flag."
, false
};
const command_line::arg_descriptor<std::string, false, true, 2> arg_data_dir = {
"data-dir"
, "Specify data directory"
, tools::get_default_data_dir()
, {{ &arg_testnet_on, &arg_stagenet_on }}
, [](std::array<bool, 2> testnet_stagenet, bool defaulted, std::string val)->std::string {
if (testnet_stagenet[0])
return (boost::filesystem::path(val) / "testnet").string();
else if (testnet_stagenet[1])
return (boost::filesystem::path(val) / "stagenet").string();
return val;
}
};
const command_line::arg_descriptor<bool> arg_offline = {
"offline"
, "Do not listen for peers, nor connect to any"
};
const command_line::arg_descriptor<bool> arg_disable_dns_checkpoints = {
"disable-dns-checkpoints"
, "Do not retrieve checkpoints from DNS"
};
static const command_line::arg_descriptor<bool> arg_test_drop_download = {
"test-drop-download"
, "For net tests: in download, discard ALL blocks instead checking/saving them (very fast)"
};
static const command_line::arg_descriptor<uint64_t> arg_test_drop_download_height = {
"test-drop-download-height"
, "Like test-drop-download but discards only after around certain height"
, 0
};
static const command_line::arg_descriptor<int> arg_test_dbg_lock_sleep = {
"test-dbg-lock-sleep"
, "Sleep time in ms, defaults to 0 (off), used to debug before/after locking mutex. Values 100 to 1000 are good for tests."
, 0
};
static const command_line::arg_descriptor<bool> arg_dns_checkpoints = {
"enforce-dns-checkpointing"
, "checkpoints from DNS server will be enforced"
, false
};
static const command_line::arg_descriptor<uint64_t> arg_fast_block_sync = {
"fast-block-sync"
, "Sync up most of the way by using embedded, known block hashes."
, 1
};
static const command_line::arg_descriptor<uint64_t> arg_prep_blocks_threads = {
"prep-blocks-threads"
, "Max number of threads to use when preparing block hashes in groups."
, 4
};
static const command_line::arg_descriptor<uint64_t> arg_show_time_stats = {
"show-time-stats"
, "Show time-stats when processing blocks/txs and disk synchronization."
, 0
};
static const command_line::arg_descriptor<size_t> arg_block_sync_size = {
"block-sync-size"
, "How many blocks to sync at once during chain synchronization (0 = adaptive)."
, 0
};
static const command_line::arg_descriptor<std::string> arg_check_updates = {
"check-updates"
, "Check for new versions of loki: [disabled|notify|download|update]"
, "notify"
};
static const command_line::arg_descriptor<bool> arg_fluffy_blocks = {
"fluffy-blocks"
, "Relay blocks as fluffy blocks (obsolete, now default)"
, true
};
static const command_line::arg_descriptor<bool> arg_no_fluffy_blocks = {
"no-fluffy-blocks"
, "Relay blocks as normal blocks"
, false
};
static const command_line::arg_descriptor<size_t> arg_max_txpool_size = {
"max-txpool-size"
, "Set maximum txpool size in bytes."
, DEFAULT_TXPOOL_MAX_SIZE
};
static const command_line::arg_descriptor<bool> arg_service_node = {
"service-node"
, "Run as a service node"
};
//-----------------------------------------------------------------------------------------------
core::core(i_cryptonote_protocol* pprotocol):
m_mempool(m_blockchain_storage),
m_service_node_list(m_blockchain_storage),
m_blockchain_storage(m_mempool, m_service_node_list, m_deregister_vote_pool),
m_quorum_cop(*this, m_service_node_list),
m_miner(this),
m_miner_address(boost::value_initialized<account_public_address>()),
m_starter_message_showed(false),
m_target_blockchain_height(0),
m_checkpoints_path(""),
m_last_dns_checkpoints_update(0),
m_last_json_checkpoints_update(0),
m_disable_dns_checkpoints(false),
m_threadpool(tools::threadpool::getInstance()),
m_update_download(0),
m_nettype(UNDEFINED)
{
m_checkpoints_updating.clear();
set_cryptonote_protocol(pprotocol);
}
void core::set_cryptonote_protocol(i_cryptonote_protocol* pprotocol)
{
if(pprotocol)
m_pprotocol = pprotocol;
else
m_pprotocol = &m_protocol_stub;
}
//-----------------------------------------------------------------------------------
void core::set_checkpoints(checkpoints&& chk_pts)
{
m_blockchain_storage.set_checkpoints(std::move(chk_pts));
}
//-----------------------------------------------------------------------------------
void core::set_checkpoints_file_path(const std::string& path)
{
m_checkpoints_path = path;
}
//-----------------------------------------------------------------------------------
void core::set_enforce_dns_checkpoints(bool enforce_dns)
{
m_blockchain_storage.set_enforce_dns_checkpoints(enforce_dns);
}
//-----------------------------------------------------------------------------------------------
bool core::update_checkpoints()
{
if (m_nettype != MAINNET || m_disable_dns_checkpoints) return true;
if (m_checkpoints_updating.test_and_set()) return true;
bool res = true;
if (time(NULL) - m_last_dns_checkpoints_update >= 3600)
{
res = m_blockchain_storage.update_checkpoints(m_checkpoints_path, true);
m_last_dns_checkpoints_update = time(NULL);
m_last_json_checkpoints_update = time(NULL);
}
else if (time(NULL) - m_last_json_checkpoints_update >= 600)
{
res = m_blockchain_storage.update_checkpoints(m_checkpoints_path, false);
m_last_json_checkpoints_update = time(NULL);
}
m_checkpoints_updating.clear();
// if anything fishy happened getting new checkpoints, bring down the house
if (!res)
{
graceful_exit();
}
return res;
}
//-----------------------------------------------------------------------------------
void core::stop()
{
m_blockchain_storage.cancel();
tools::download_async_handle handle;
{
boost::lock_guard<boost::mutex> lock(m_update_mutex);
handle = m_update_download;
m_update_download = 0;
}
if (handle)
tools::download_cancel(handle);
}
//-----------------------------------------------------------------------------------
void core::init_options(boost::program_options::options_description& desc)
{
command_line::add_arg(desc, arg_data_dir);
command_line::add_arg(desc, arg_test_drop_download);
command_line::add_arg(desc, arg_test_drop_download_height);
command_line::add_arg(desc, arg_testnet_on);
command_line::add_arg(desc, arg_stagenet_on);
command_line::add_arg(desc, arg_dns_checkpoints);
command_line::add_arg(desc, arg_prep_blocks_threads);
command_line::add_arg(desc, arg_fast_block_sync);
command_line::add_arg(desc, arg_show_time_stats);
command_line::add_arg(desc, arg_block_sync_size);
command_line::add_arg(desc, arg_check_updates);
command_line::add_arg(desc, arg_fluffy_blocks);
command_line::add_arg(desc, arg_no_fluffy_blocks);
command_line::add_arg(desc, arg_test_dbg_lock_sleep);
command_line::add_arg(desc, arg_offline);
command_line::add_arg(desc, arg_disable_dns_checkpoints);
command_line::add_arg(desc, arg_max_txpool_size);
command_line::add_arg(desc, arg_service_node);
miner::init_options(desc);
BlockchainDB::init_options(desc);
}
//-----------------------------------------------------------------------------------------------
bool core::handle_command_line(const boost::program_options::variables_map& vm)
{
if (m_nettype != FAKECHAIN)
{
const bool testnet = command_line::get_arg(vm, arg_testnet_on);
const bool stagenet = command_line::get_arg(vm, arg_stagenet_on);
m_nettype = testnet ? TESTNET : stagenet ? STAGENET : MAINNET;
m_deregister_vote_pool.m_nettype = m_nettype;
}
m_config_folder = command_line::get_arg(vm, arg_data_dir);
auto data_dir = boost::filesystem::path(m_config_folder);
if (m_nettype == MAINNET || m_nettype == TESTNET)
{
cryptonote::checkpoints checkpoints;
if (!checkpoints.init_default_checkpoints(m_nettype))
{
throw std::runtime_error("Failed to initialize checkpoints");
}
set_checkpoints(std::move(checkpoints));
boost::filesystem::path json(JSON_HASH_FILE_NAME);
boost::filesystem::path checkpoint_json_hashfile_fullpath = data_dir / json;
set_checkpoints_file_path(checkpoint_json_hashfile_fullpath.string());
}
set_enforce_dns_checkpoints(command_line::get_arg(vm, arg_dns_checkpoints));
test_drop_download_height(command_line::get_arg(vm, arg_test_drop_download_height));
m_fluffy_blocks_enabled = !get_arg(vm, arg_no_fluffy_blocks);
m_offline = get_arg(vm, arg_offline);
m_disable_dns_checkpoints = get_arg(vm, arg_disable_dns_checkpoints);
if (!command_line::is_arg_defaulted(vm, arg_fluffy_blocks))
MWARNING(arg_fluffy_blocks.name << " is obsolete, it is now default");
if (command_line::get_arg(vm, arg_test_drop_download) == true)
test_drop_download();
m_service_node = command_line::get_arg(vm, arg_service_node);
epee::debug::g_test_dbg_lock_sleep() = command_line::get_arg(vm, arg_test_dbg_lock_sleep);
return true;
}
//-----------------------------------------------------------------------------------------------
uint64_t core::get_current_blockchain_height() const
{
return m_blockchain_storage.get_current_blockchain_height();
}
//-----------------------------------------------------------------------------------------------
void core::get_blockchain_top(uint64_t& height, crypto::hash& top_id) const
{
top_id = m_blockchain_storage.get_tail_id(height);
}
//-----------------------------------------------------------------------------------------------
bool core::get_blocks(uint64_t start_offset, size_t count, std::list<std::pair<cryptonote::blobdata,block>>& blocks, std::list<cryptonote::blobdata>& txs) const
{
return m_blockchain_storage.get_blocks(start_offset, count, blocks, txs);
}
//-----------------------------------------------------------------------------------------------
bool core::get_blocks(uint64_t start_offset, size_t count, std::list<std::pair<cryptonote::blobdata,block>>& blocks) const
{
return m_blockchain_storage.get_blocks(start_offset, count, blocks);
}
//-----------------------------------------------------------------------------------------------
bool core::get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks) const
{
std::list<std::pair<cryptonote::blobdata, cryptonote::block>> bs;
if (!m_blockchain_storage.get_blocks(start_offset, count, bs))
return false;
for (const auto &b: bs)
blocks.push_back(b.second);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_transactions(const std::vector<crypto::hash>& txs_ids, std::list<cryptonote::blobdata>& txs, std::list<crypto::hash>& missed_txs) const
{
return m_blockchain_storage.get_transactions_blobs(txs_ids, txs, missed_txs);
}
//-----------------------------------------------------------------------------------------------
bool core::get_txpool_backlog(std::vector<tx_backlog_entry>& backlog) const
{
m_mempool.get_transaction_backlog(backlog);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_transactions(const std::vector<crypto::hash>& txs_ids, std::list<transaction>& txs, std::list<crypto::hash>& missed_txs) const
{
return m_blockchain_storage.get_transactions(txs_ids, txs, missed_txs);
}
//-----------------------------------------------------------------------------------------------
bool core::get_alternative_blocks(std::list<block>& blocks) const
{
return m_blockchain_storage.get_alternative_blocks(blocks);
}
//-----------------------------------------------------------------------------------------------
size_t core::get_alternative_blocks_count() const
{
return m_blockchain_storage.get_alternative_blocks_count();
}
//-----------------------------------------------------------------------------------------------
bool core::init(const boost::program_options::variables_map& vm, const char *config_subdir, const cryptonote::test_options *test_options)
{
start_time = std::time(nullptr);
if (test_options != NULL)
{
m_nettype = FAKECHAIN;
}
bool r = handle_command_line(vm);
std::string m_config_folder_mempool = m_config_folder;
if (config_subdir)
m_config_folder_mempool = m_config_folder_mempool + "/" + config_subdir;
std::string db_type = command_line::get_arg(vm, cryptonote::arg_db_type);
std::string db_sync_mode = command_line::get_arg(vm, cryptonote::arg_db_sync_mode);
bool db_salvage = command_line::get_arg(vm, cryptonote::arg_db_salvage) != 0;
bool fast_sync = command_line::get_arg(vm, arg_fast_block_sync) != 0;
uint64_t blocks_threads = command_line::get_arg(vm, arg_prep_blocks_threads);
std::string check_updates_string = command_line::get_arg(vm, arg_check_updates);
size_t max_txpool_size = command_line::get_arg(vm, arg_max_txpool_size);
if (m_service_node)
{
r = init_service_node_key();
CHECK_AND_ASSERT_MES(r, false, "Failed to create or load service node key");
}
boost::filesystem::path folder(m_config_folder);
if (m_nettype == FAKECHAIN)
folder /= "fake";
// make sure the data directory exists, and try to lock it
CHECK_AND_ASSERT_MES (boost::filesystem::exists(folder) || boost::filesystem::create_directories(folder), false,
std::string("Failed to create directory ").append(folder.string()).c_str());
// check for blockchain.bin
try
{
const boost::filesystem::path old_files = folder;
if (boost::filesystem::exists(old_files / "blockchain.bin"))
{
MWARNING("Found old-style blockchain.bin in " << old_files.string());
MWARNING("Loki now uses a new format. You can either remove blockchain.bin to start syncing");
MWARNING("the blockchain anew, or use loki-blockchain-export and loki-blockchain-import to");
MWARNING("convert your existing blockchain.bin to the new format. See README.md for instructions.");
return false;
}
}
// folder might not be a directory, etc, etc
catch (...) { }
std::unique_ptr<BlockchainDB> db(new_db(db_type));
if (db == NULL)
{
LOG_ERROR("Attempted to use non-existent database type");
return false;
}
folder /= db->get_db_name();
MGINFO("Loading blockchain from folder " << folder.string() << " ...");
const std::string filename = folder.string();
// default to fast:async:1
blockchain_db_sync_mode sync_mode = db_defaultsync;
uint64_t blocks_per_sync = 1;
try
{
uint64_t db_flags = 0;
std::vector<std::string> options;
boost::trim(db_sync_mode);
boost::split(options, db_sync_mode, boost::is_any_of(" :"));
const bool db_sync_mode_is_default = command_line::is_arg_defaulted(vm, cryptonote::arg_db_sync_mode);
for(const auto &option : options)
MDEBUG("option: " << option);
// default to fast:async:1
uint64_t DEFAULT_FLAGS = DBF_FAST;
if(options.size() == 0)
{
// default to fast:async:1
db_flags = DEFAULT_FLAGS;
}
bool safemode = false;
if(options.size() >= 1)
{
if(options[0] == "safe")
{
safemode = true;
db_flags = DBF_SAFE;
sync_mode = db_sync_mode_is_default ? db_defaultsync : db_nosync;
}
else if(options[0] == "fast")
{
db_flags = DBF_FAST;
sync_mode = db_sync_mode_is_default ? db_defaultsync : db_async;
}
else if(options[0] == "fastest")
{
db_flags = DBF_FASTEST;
blocks_per_sync = 1000; // default to fastest:async:1000
sync_mode = db_sync_mode_is_default ? db_defaultsync : db_async;
}
else
db_flags = DEFAULT_FLAGS;
}
if(options.size() >= 2 && !safemode)
{
if(options[1] == "sync")
sync_mode = db_sync_mode_is_default ? db_defaultsync : db_sync;
else if(options[1] == "async")
sync_mode = db_sync_mode_is_default ? db_defaultsync : db_async;
}
if(options.size() >= 3 && !safemode)
{
char *endptr;
uint64_t bps = strtoull(options[2].c_str(), &endptr, 0);
if (*endptr == '\0')
blocks_per_sync = bps;
}
if (db_salvage)
db_flags |= DBF_SALVAGE;
db->open(filename, db_flags);
if(!db->m_open)
return false;
}
catch (const DB_ERROR& e)
{
LOG_ERROR("Error opening database: " << e.what());
return false;
}
m_blockchain_storage.set_user_options(blocks_threads,
blocks_per_sync, sync_mode, fast_sync);
BlockchainDB *initialized_db = db.release();
m_service_node_list.set_db_pointer(initialized_db);
m_service_node_list.register_hooks(m_quorum_cop);
r = m_blockchain_storage.init(initialized_db, m_nettype, m_offline, test_options);
r = m_mempool.init(max_txpool_size);
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize memory pool");
// now that we have a valid m_blockchain_storage, we can clean out any
// transactions in the pool that do not conform to the current fork
m_mempool.validate(m_blockchain_storage.get_current_hard_fork_version());
bool show_time_stats = command_line::get_arg(vm, arg_show_time_stats) != 0;
m_blockchain_storage.set_show_time_stats(show_time_stats);
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize blockchain storage");
block_sync_size = command_line::get_arg(vm, arg_block_sync_size);
MGINFO("Loading checkpoints");
// load json & DNS checkpoints, and verify them
// with respect to what blocks we already have
CHECK_AND_ASSERT_MES(update_checkpoints(), false, "One or more checkpoints loaded from json or dns conflicted with existing checkpoints.");
// DNS versions checking
if (check_updates_string == "disabled")
check_updates_level = UPDATES_DISABLED;
else if (check_updates_string == "notify")
check_updates_level = UPDATES_NOTIFY;
else if (check_updates_string == "download")
check_updates_level = UPDATES_DOWNLOAD;
else if (check_updates_string == "update")
check_updates_level = UPDATES_UPDATE;
else {
MERROR("Invalid argument to --dns-versions-check: " << check_updates_string);
return false;
}
r = m_miner.init(vm, m_nettype);
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize miner instance");
return load_state_data();
}
//-----------------------------------------------------------------------------------------------
bool core::init_service_node_key()
{
std::string keypath = m_config_folder + "/key";
if (epee::file_io_utils::is_file_exist(keypath))
{
std::string keystr;
bool r = epee::file_io_utils::load_file_to_string(keypath, keystr);
memcpy(&unwrap(m_service_node_key), keystr.data(), sizeof(m_service_node_key));
wipeable_string wipe(keystr);
CHECK_AND_ASSERT_MES(r, false, "failed to load service node key from file");
r = crypto::secret_key_to_public_key(m_service_node_key, m_service_node_pubkey);
CHECK_AND_ASSERT_MES(r, false, "failed to generate pubkey from secret key");
}
else
{
cryptonote::keypair keypair = keypair::generate(hw::get_device("default"));
m_service_node_pubkey = keypair.pub;
m_service_node_key = keypair.sec;
std::string keystr(reinterpret_cast<const char *>(&m_service_node_key), sizeof(m_service_node_key));
bool r = epee::file_io_utils::save_string_to_file(keypath, keystr);
wipeable_string wipe(keystr);
CHECK_AND_ASSERT_MES(r, false, "failed to save service node key to file");
using namespace boost::filesystem;
permissions(keypath, owner_read);
}
MGINFO_YELLOW("Service node pubkey is " << epee::string_tools::pod_to_hex(m_service_node_pubkey));
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::set_genesis_block(const block& b)
{
return m_blockchain_storage.reset_and_set_genesis_block(b);
}
//-----------------------------------------------------------------------------------------------
bool core::load_state_data()
{
// may be some code later
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::deinit()
{
m_miner.stop();
m_mempool.deinit();
m_blockchain_storage.deinit();
return true;
}
//-----------------------------------------------------------------------------------------------
void core::test_drop_download()
{
m_test_drop_download = false;
}
//-----------------------------------------------------------------------------------------------
void core::test_drop_download_height(uint64_t height)
{
m_test_drop_download_height = height;
}
//-----------------------------------------------------------------------------------------------
bool core::get_test_drop_download() const
{
return m_test_drop_download;
}
//-----------------------------------------------------------------------------------------------
bool core::get_test_drop_download_height() const
{
if (m_test_drop_download_height == 0)
return true;
if (get_blockchain_storage().get_current_blockchain_height() <= m_test_drop_download_height)
return true;
return false;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_tx_pre(const blobdata& tx_blob, tx_verification_context& tvc, cryptonote::transaction &tx, crypto::hash &tx_hash, crypto::hash &tx_prefixt_hash, bool keeped_by_block, bool relayed, bool do_not_relay)
{
tvc = boost::value_initialized<tx_verification_context>();
if(tx_blob.size() > get_max_tx_size())
{
LOG_PRINT_L1("WRONG TRANSACTION BLOB, too big size " << tx_blob.size() << ", rejected");
tvc.m_verifivation_failed = true;
tvc.m_too_big = true;
return false;
}
tx_hash = crypto::null_hash;
tx_prefixt_hash = crypto::null_hash;
if(!parse_tx_from_blob(tx, tx_hash, tx_prefixt_hash, tx_blob))
{
LOG_PRINT_L1("WRONG TRANSACTION BLOB, Failed to parse, rejected");
tvc.m_verifivation_failed = true;
return false;
}
//std::cout << "!"<< tx.vin.size() << std::endl;
bad_semantics_txes_lock.lock();
for (int idx = 0; idx < 2; ++idx)
{
if (bad_semantics_txes[idx].find(tx_hash) != bad_semantics_txes[idx].end())
{
bad_semantics_txes_lock.unlock();
LOG_PRINT_L1("Transaction already seen with bad semantics, rejected");
tvc.m_verifivation_failed = true;
return false;
}
}
bad_semantics_txes_lock.unlock();
int version = m_blockchain_storage.get_current_hard_fork_version();
unsigned int max_tx_version = (version == 1) ? 1 : (version < 9)
? transaction::version_2
: transaction::version_3_per_output_unlock_times;
if (tx.version == 0 || tx.version > max_tx_version)
{
tvc.m_verifivation_failed = true;
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_tx_post(const blobdata& tx_blob, tx_verification_context& tvc, cryptonote::transaction &tx, crypto::hash &tx_hash, crypto::hash &tx_prefixt_hash, bool keeped_by_block, bool relayed, bool do_not_relay)
{
if(!check_tx_syntax(tx))
{
LOG_PRINT_L1("WRONG TRANSACTION BLOB, Failed to check tx " << tx_hash << " syntax, rejected");
tvc.m_verifivation_failed = true;
return false;
}
if (keeped_by_block && get_blockchain_storage().is_within_compiled_block_hash_area())
{
MTRACE("Skipping semantics check for tx kept by block in embedded hash area");
}
else if(!check_tx_semantic(tx, keeped_by_block))
{
LOG_PRINT_L1("WRONG TRANSACTION BLOB, Failed to check tx " << tx_hash << " semantic, rejected");
tvc.m_verifivation_failed = true;
bad_semantics_txes_lock.lock();
bad_semantics_txes[0].insert(tx_hash);
if (bad_semantics_txes[0].size() >= BAD_SEMANTICS_TXES_MAX_SIZE)
{
std::swap(bad_semantics_txes[0], bad_semantics_txes[1]);
bad_semantics_txes[0].clear();
}
bad_semantics_txes_lock.unlock();
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_txs(const std::list<blobdata>& tx_blobs, std::vector<tx_verification_context>& tvc, bool keeped_by_block, bool relayed, bool do_not_relay)
{
TRY_ENTRY();
struct result { bool res; cryptonote::transaction tx; crypto::hash hash; crypto::hash prefix_hash; bool in_txpool; bool in_blockchain; };
std::vector<result> results(tx_blobs.size());
tvc.resize(tx_blobs.size());
tools::threadpool::waiter waiter;
std::list<blobdata>::const_iterator it = tx_blobs.begin();
for (size_t i = 0; i < tx_blobs.size(); i++, ++it) {
m_threadpool.submit(&waiter, [&, i, it] {
try
{
results[i].res = handle_incoming_tx_pre(*it, tvc[i], results[i].tx, results[i].hash, results[i].prefix_hash, keeped_by_block, relayed, do_not_relay);
}
catch (const std::exception &e)
{
MERROR_VER("Exception in handle_incoming_tx_pre: " << e.what());
results[i].res = false;
}
});
}
waiter.wait();
it = tx_blobs.begin();
for (size_t i = 0; i < tx_blobs.size(); i++, ++it) {
if (!results[i].res)
continue;
if(m_mempool.have_tx(results[i].hash))
{
LOG_PRINT_L2("tx " << results[i].hash << "already have transaction in tx_pool");
}
else if(m_blockchain_storage.have_tx(results[i].hash))
{
LOG_PRINT_L2("tx " << results[i].hash << " already have transaction in blockchain");
}
else
{
m_threadpool.submit(&waiter, [&, i, it] {
try
{
results[i].res = handle_incoming_tx_post(*it, tvc[i], results[i].tx, results[i].hash, results[i].prefix_hash, keeped_by_block, relayed, do_not_relay);
}
catch (const std::exception &e)
{
MERROR_VER("Exception in handle_incoming_tx_post: " << e.what());
results[i].res = false;
}
});
}
}
waiter.wait();
bool ok = true;
it = tx_blobs.begin();
for (size_t i = 0; i < tx_blobs.size(); i++, ++it) {
if (!results[i].res)
{
ok = false;
continue;
}
ok &= add_new_tx(results[i].tx, results[i].hash, results[i].prefix_hash, it->size(), tvc[i], keeped_by_block, relayed, do_not_relay);
if(tvc[i].m_verifivation_failed)
{MERROR_VER("Transaction verification failed: " << results[i].hash);}
else if(tvc[i].m_verifivation_impossible)
{MERROR_VER("Transaction verification impossible: " << results[i].hash);}
if(tvc[i].m_added_to_pool)
MDEBUG("tx added: " << results[i].hash);
}
return ok;
CATCH_ENTRY_L0("core::handle_incoming_txs()", false);
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_tx(const blobdata& tx_blob, tx_verification_context& tvc, bool keeped_by_block, bool relayed, bool do_not_relay)
{
std::list<cryptonote::blobdata> tx_blobs;
tx_blobs.push_back(tx_blob);
std::vector<tx_verification_context> tvcv(1);
bool r = handle_incoming_txs(tx_blobs, tvcv, keeped_by_block, relayed, do_not_relay);
tvc = tvcv[0];
return r;
}
//-----------------------------------------------------------------------------------------------
bool core::get_stat_info(core_stat_info& st_inf) const
{
st_inf.mining_speed = m_miner.get_speed();
st_inf.alternative_blocks = m_blockchain_storage.get_alternative_blocks_count();
st_inf.blockchain_height = m_blockchain_storage.get_current_blockchain_height();
st_inf.tx_pool_size = m_mempool.get_transactions_count();
st_inf.top_block_id_str = epee::string_tools::pod_to_hex(m_blockchain_storage.get_tail_id());
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::check_tx_semantic(const transaction& tx, bool keeped_by_block) const
{
if (tx.is_deregister_tx())
{
if (tx.vin.size() != 0)
{
MERROR_VER("tx version deregister must have 0 inputs, received: " << tx.vin.size() << ", rejected for tx id = " << get_transaction_hash(tx));
return false;
}
}
else if (!tx.vin.size())
{
MERROR_VER("tx with empty inputs, rejected for tx id= " << get_transaction_hash(tx));
return false;
}
if(!check_inputs_types_supported(tx))
{
MERROR_VER("unsupported input types for tx id= " << get_transaction_hash(tx));
return false;
}
if(!check_outs_valid(tx))
{
MERROR_VER("tx with invalid outputs, rejected for tx id= " << get_transaction_hash(tx));
return false;
}
if (tx.version >= transaction::version_2)
{
if (tx.rct_signatures.outPk.size() != tx.vout.size())
{
MERROR_VER("tx with mismatched vout/outPk count, rejected for tx id= " << get_transaction_hash(tx));
return false;
}
}
if(!check_money_overflow(tx))
{
MERROR_VER("tx has money overflow, rejected for tx id= " << get_transaction_hash(tx));
return false;
}
if (tx.version == transaction::version_1)
{
uint64_t amount_in = 0;
get_inputs_money_amount(tx, amount_in);
uint64_t amount_out = get_outs_money_amount(tx);
if(amount_in <= amount_out)
{
MERROR_VER("tx with wrong amounts: ins " << amount_in << ", outs " << amount_out << ", rejected for tx id= " << get_transaction_hash(tx));
return false;
}
}
if(!keeped_by_block && get_object_blobsize(tx) >= m_blockchain_storage.get_current_cumulative_blocksize_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE)
{
MERROR_VER("tx is too large " << get_object_blobsize(tx) << ", expected not bigger than " << m_blockchain_storage.get_current_cumulative_blocksize_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE);
return false;
}
if(!check_tx_inputs_keyimages_diff(tx))
{
MERROR_VER("tx uses a single key image more than once");
return false;
}
if (!check_tx_inputs_ring_members_diff(tx))
{
MERROR_VER("tx uses duplicate ring members");
return false;
}
if (!check_tx_inputs_keyimages_domain(tx))
{
MERROR_VER("tx uses key image not in the valid domain");
return false;
}
if (tx.version >= transaction::version_2 && !tx.is_deregister_tx()) // ringct signatures check verifies amounts match
{
const rct::rctSig &rv = tx.rct_signatures;
switch (rv.type) {
case rct::RCTTypeNull:
// coinbase should not come here, so we reject for all other types
MERROR_VER("Unexpected Null rctSig type");
return false;
case rct::RCTTypeSimple:
case rct::RCTTypeSimpleBulletproof:
if (!rct::verRctSimple(rv, true))
{
MERROR_VER("rct signature semantics check failed");
return false;
}
break;
case rct::RCTTypeFull:
case rct::RCTTypeFullBulletproof:
if (!rct::verRct(rv, true))
{
MERROR_VER("rct signature semantics check failed");
return false;
}
break;
default:
MERROR_VER("Unknown rct type: " << rv.type);
return false;
}
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::is_key_image_spent(const crypto::key_image &key_image) const
{
return m_blockchain_storage.have_tx_keyimg_as_spent(key_image);
}
//-----------------------------------------------------------------------------------------------
bool core::are_key_images_spent(const std::vector<crypto::key_image>& key_im, std::vector<bool> &spent) const
{
spent.clear();
for(auto& ki: key_im)
{
spent.push_back(m_blockchain_storage.have_tx_keyimg_as_spent(ki));
}
return true;
}
//-----------------------------------------------------------------------------------------------
size_t core::get_block_sync_size(uint64_t height) const
{
static const uint64_t quick_height = m_nettype == TESTNET ? 801219 : m_nettype == MAINNET ? 1220516 : 0;
if (block_sync_size > 0)
return block_sync_size;
if (height >= quick_height)
return BLOCKS_SYNCHRONIZING_DEFAULT_COUNT;
return BLOCKS_SYNCHRONIZING_DEFAULT_COUNT_PRE_V4;
}
//-----------------------------------------------------------------------------------------------
bool core::are_key_images_spent_in_pool(const std::vector<crypto::key_image>& key_im, std::vector<bool> &spent) const
{
spent.clear();
return m_mempool.check_for_key_images(key_im, spent);
}
//-----------------------------------------------------------------------------------------------
std::pair<uint64_t, uint64_t> core::get_coinbase_tx_sum(const uint64_t start_offset, const size_t count)
{
uint64_t emission_amount = 0;
uint64_t total_fee_amount = 0;
if (count)
{
const uint64_t end = start_offset + count - 1;
m_blockchain_storage.for_blocks_range(start_offset, end,
[this, &emission_amount, &total_fee_amount](uint64_t, const crypto::hash& hash, const block& b){
std::list<transaction> txs;
std::list<crypto::hash> missed_txs;
uint64_t coinbase_amount = get_outs_money_amount(b.miner_tx);
this->get_transactions(b.tx_hashes, txs, missed_txs);
uint64_t tx_fee_amount = 0;
for(const auto& tx: txs)
{
tx_fee_amount += get_tx_fee(tx);
}
emission_amount += coinbase_amount - tx_fee_amount;
total_fee_amount += tx_fee_amount;
return true;
});
}