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e552ba14b2
monero/src/cryptonote_core/cryptonote_core.cpp
Alexander Blair e552ba14b2
Merge pull request #6127 
67b4a19e simplewallet: noob-friendly help menu (wowario)
2020-02-06 00:33:31 -08:00

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// Copyright (c) 2014-2019, 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.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#include <boost/algorithm/string.hpp>
#include <boost/uuid/nil_generator.hpp>
#include "string_tools.h"
using namespace epee;
#include <unordered_set>
#include "cryptonote_core.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 "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 "common/notify.h"
#include "hardforks/hardforks.h"
#include "version.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "cn"
DISABLE_VS_WARNINGS(4355)
#define MERROR_VER(x) MCERROR("verify", x)
#define BAD_SEMANTICS_TXES_MAX_SIZE 100
// basically at least how many bytes the block itself serializes to without the miner tx
#define BLOCK_SIZE_SANITY_LEEWAY 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<bool> arg_regtest_on = {
"regtest"
, "Run in a regression testing mode."
, false
};
const command_line::arg_descriptor<bool> arg_keep_fakechain = {
"keep-fakechain"
, "Don't delete any existing database when in fakechain mode."
, false
};
const command_line::arg_descriptor<difficulty_type> arg_fixed_difficulty = {
"fixed-difficulty"
, "Fixed difficulty used for testing."
, 0
};
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"
};
const command_line::arg_descriptor<size_t> arg_block_download_max_size = {
"block-download-max-size"
, "Set maximum size of block download queue in bytes (0 for default)"
, 0
};
const command_line::arg_descriptor<bool> arg_sync_pruned_blocks = {
"sync-pruned-blocks"
, "Allow syncing from nodes with only pruned blocks"
};
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 monero: [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_weight = {
"max-txpool-weight"
, "Set maximum txpool weight in bytes."
, DEFAULT_TXPOOL_MAX_WEIGHT
};
static const command_line::arg_descriptor<std::string> arg_block_notify = {
"block-notify"
, "Run a program for each new block, '%s' will be replaced by the block hash"
, ""
};
static const command_line::arg_descriptor<bool> arg_prune_blockchain = {
"prune-blockchain"
, "Prune blockchain"
, false
};
static const command_line::arg_descriptor<std::string> arg_reorg_notify = {
"reorg-notify"
, "Run a program for each reorg, '%s' will be replaced by the split height, "
"'%h' will be replaced by the new blockchain height, '%n' will be "
"replaced by the number of new blocks in the new chain, and '%d' will be "
"replaced by the number of blocks discarded from the old chain"
, ""
};
static const command_line::arg_descriptor<std::string> arg_block_rate_notify = {
"block-rate-notify"
, "Run a program when the block rate undergoes large fluctuations. This might "
"be a sign of large amounts of hash rate going on and off the Monero network, "
"and thus be of potential interest in predicting attacks. %t will be replaced "
"by the number of minutes for the observation window, %b by the number of "
"blocks observed within that window, and %e by the number of blocks that was "
"expected in that window. It is suggested that this notification is used to "
"automatically increase the number of confirmations required before a payment "
"is acted upon."
, ""
};
static const command_line::arg_descriptor<bool> arg_keep_alt_blocks = {
"keep-alt-blocks"
, "Keep alternative blocks on restart"
, false
};
//-----------------------------------------------------------------------------------------------
core::core(i_cryptonote_protocol* pprotocol):
m_mempool(m_blockchain_storage),
m_blockchain_storage(m_mempool),
m_miner(this, [this](const cryptonote::block &b, uint64_t height, unsigned int threads, crypto::hash &hash) {
return cryptonote::get_block_longhash(&m_blockchain_storage, b, hash, height, threads);
}),
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_update_download(0),
m_nettype(UNDEFINED),
m_update_available(false)
{
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_miner.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_regtest_on);
command_line::add_arg(desc, arg_keep_fakechain);
command_line::add_arg(desc, arg_fixed_difficulty);
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_block_download_max_size);
command_line::add_arg(desc, arg_sync_pruned_blocks);
command_line::add_arg(desc, arg_max_txpool_weight);
command_line::add_arg(desc, arg_block_notify);
command_line::add_arg(desc, arg_prune_blockchain);
command_line::add_arg(desc, arg_reorg_notify);
command_line::add_arg(desc, arg_block_rate_notify);
command_line::add_arg(desc, arg_keep_alt_blocks);
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_config_folder = command_line::get_arg(vm, arg_data_dir);
auto data_dir = boost::filesystem::path(m_config_folder);
if (m_nettype == MAINNET)
{
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();
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::vector<std::pair<cryptonote::blobdata,block>>& blocks, std::vector<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::vector<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::vector<block>& blocks) const
{
std::vector<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::vector<cryptonote::blobdata>& txs, std::vector<crypto::hash>& missed_txs) const
{
return m_blockchain_storage.get_transactions_blobs(txs_ids, txs, missed_txs);
}
//-----------------------------------------------------------------------------------------------
bool core::get_split_transactions_blobs(const std::vector<crypto::hash>& txs_ids, std::vector<std::tuple<crypto::hash, cryptonote::blobdata, crypto::hash, cryptonote::blobdata>>& txs, std::vector<crypto::hash>& missed_txs) const
{
return m_blockchain_storage.get_split_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::vector<transaction>& txs, std::vector<crypto::hash>& missed_txs) const
{
return m_blockchain_storage.get_transactions(txs_ids, txs, missed_txs);
}
//-----------------------------------------------------------------------------------------------
bool core::get_alternative_blocks(std::vector<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 cryptonote::test_options *test_options, const GetCheckpointsCallback& get_checkpoints/* = nullptr */)
{
start_time = std::time(nullptr);
const bool regtest = command_line::get_arg(vm, arg_regtest_on);
if (test_options != NULL || regtest)
{
m_nettype = FAKECHAIN;
}
bool r = handle_command_line(vm);
CHECK_AND_ASSERT_MES(r, false, "Failed to handle command line");
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_weight = command_line::get_arg(vm, arg_max_txpool_weight);
bool prune_blockchain = command_line::get_arg(vm, arg_prune_blockchain);
bool keep_alt_blocks = command_line::get_arg(vm, arg_keep_alt_blocks);
bool keep_fakechain = command_line::get_arg(vm, arg_keep_fakechain);
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("Monero now uses a new format. You can either remove blockchain.bin to start syncing");
MWARNING("the blockchain anew, or use monero-blockchain-export and monero-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());
if (db == NULL)
{
LOG_ERROR("Failed to initialize a database");
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 if overridden
blockchain_db_sync_mode sync_mode = db_defaultsync;
bool sync_on_blocks = true;
uint64_t sync_threshold = 1;
if (m_nettype == FAKECHAIN && !keep_fakechain)
{
// reset the db by removing the database file before opening it
if (!db->remove_data_file(filename))
{
MERROR("Failed to remove data file in " << filename);
return false;
}
}
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;
sync_threshold = 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 threshold = strtoull(options[2].c_str(), &endptr, 0);
if (*endptr == '\0' || !strcmp(endptr, "blocks"))
{
sync_on_blocks = true;
sync_threshold = threshold;
}
else if (!strcmp(endptr, "bytes"))
{
sync_on_blocks = false;
sync_threshold = threshold;
}
else
{
LOG_ERROR("Invalid db sync mode: " << options[2]);
return false;
}
}
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,
sync_on_blocks, sync_threshold, sync_mode, fast_sync);
try
{
if (!command_line::is_arg_defaulted(vm, arg_block_notify))
m_blockchain_storage.set_block_notify(std::shared_ptr<tools::Notify>(new tools::Notify(command_line::get_arg(vm, arg_block_notify).c_str())));
}
catch (const std::exception &e)
{
MERROR("Failed to parse block notify spec: " << e.what());
}
try
{
if (!command_line::is_arg_defaulted(vm, arg_reorg_notify))
m_blockchain_storage.set_reorg_notify(std::shared_ptr<tools::Notify>(new tools::Notify(command_line::get_arg(vm, arg_reorg_notify).c_str())));
}
catch (const std::exception &e)
{
MERROR("Failed to parse reorg notify spec: " << e.what());
}
try
{
if (!command_line::is_arg_defaulted(vm, arg_block_rate_notify))
m_block_rate_notify.reset(new tools::Notify(command_line::get_arg(vm, arg_block_rate_notify).c_str()));
}
catch (const std::exception &e)
{
MERROR("Failed to parse block rate notify spec: " << e.what());
}
const std::pair<uint8_t, uint64_t> regtest_hard_forks[3] = {std::make_pair(1, 0), std::make_pair(mainnet_hard_forks[num_mainnet_hard_forks-1].version, 1), std::make_pair(0, 0)};
const cryptonote::test_options regtest_test_options = {
regtest_hard_forks,
0
};
const difficulty_type fixed_difficulty = command_line::get_arg(vm, arg_fixed_difficulty);
r = m_blockchain_storage.init(db.release(), m_nettype, m_offline, regtest ? &regtest_test_options : test_options, fixed_difficulty, get_checkpoints);
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize blockchain storage");
r = m_mempool.init(max_txpool_weight);
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);
if (block_sync_size > BLOCKS_SYNCHRONIZING_MAX_COUNT)
MERROR("Error --block-sync-size cannot be greater than " << BLOCKS_SYNCHRONIZING_MAX_COUNT);
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");
if (!keep_alt_blocks && !m_blockchain_storage.get_db().is_read_only())
m_blockchain_storage.get_db().drop_alt_blocks();
if (prune_blockchain)
{
// display a message if the blockchain is not pruned yet
if (!m_blockchain_storage.get_blockchain_pruning_seed())
{
MGINFO("Pruning blockchain...");
CHECK_AND_ASSERT_MES(m_blockchain_storage.prune_blockchain(), false, "Failed to prune blockchain");
}
else
{
CHECK_AND_ASSERT_MES(m_blockchain_storage.update_blockchain_pruning(), false, "Failed to update blockchain pruning");
}
}
return load_state_data();
}
//-----------------------------------------------------------------------------------------------
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 tx_blob_entry& tx_blob, tx_verification_context& tvc, cryptonote::transaction &tx, crypto::hash &tx_hash)
{
tvc = {};
if(tx_blob.blob.size() > get_max_tx_size())
{
LOG_PRINT_L1("WRONG TRANSACTION BLOB, too big size " << tx_blob.blob.size() << ", rejected");
tvc.m_verifivation_failed = true;
tvc.m_too_big = true;
return false;
}
tx_hash = crypto::null_hash;
bool r;
if (tx_blob.prunable_hash == crypto::null_hash)
{
r = parse_tx_from_blob(tx, tx_hash, tx_blob.blob);
}
else
{
r = parse_and_validate_tx_base_from_blob(tx_blob.blob, tx);
if (r)
{
tx.set_prunable_hash(tx_blob.prunable_hash);
tx_hash = cryptonote::get_pruned_transaction_hash(tx, tx_blob.prunable_hash);
tx.set_hash(tx_hash);
}
}
if (!r)
{
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();
uint8_t version = m_blockchain_storage.get_current_hard_fork_version();
const size_t max_tx_version = version == 1 ? 1 : 2;
if (tx.version == 0 || tx.version > max_tx_version)
{
// v2 is the latest one we know
MERROR_VER("Bad tx version (" << tx.version << ", max is " << max_tx_version << ")");
tvc.m_verifivation_failed = true;
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_tx_post(const tx_blob_entry& tx_blob, tx_verification_context& tvc, cryptonote::transaction &tx, crypto::hash &tx_hash)
{
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;
}
return true;
}
//-----------------------------------------------------------------------------------------------
void core::set_semantics_failed(const crypto::hash &tx_hash)
{
LOG_PRINT_L1("WRONG TRANSACTION BLOB, Failed to check tx " << tx_hash << " semantic, rejected");
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();
}
//-----------------------------------------------------------------------------------------------
static bool is_canonical_bulletproof_layout(const std::vector<rct::Bulletproof> &proofs)
{
if (proofs.size() != 1)
return false;
const size_t sz = proofs[0].V.size();
if (sz == 0 || sz > BULLETPROOF_MAX_OUTPUTS)
return false;
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_tx_accumulated_batch(std::vector<tx_verification_batch_info> &tx_info, bool keeped_by_block)
{
bool ret = true;
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");
return true;
}
std::vector<const rct::rctSig*> rvv;
for (size_t n = 0; n < tx_info.size(); ++n)
{
if (!check_tx_semantic(*tx_info[n].tx, keeped_by_block))
{
set_semantics_failed(tx_info[n].tx_hash);
tx_info[n].tvc.m_verifivation_failed = true;
tx_info[n].result = false;
continue;
}
if (tx_info[n].tx->version < 2)
continue;
const rct::rctSig &rv = tx_info[n].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");
set_semantics_failed(tx_info[n].tx_hash);
tx_info[n].tvc.m_verifivation_failed = true;
tx_info[n].result = false;
break;
case rct::RCTTypeSimple:
if (!rct::verRctSemanticsSimple(rv))
{
MERROR_VER("rct signature semantics check failed");
set_semantics_failed(tx_info[n].tx_hash);
tx_info[n].tvc.m_verifivation_failed = true;
tx_info[n].result = false;
break;
}
break;
case rct::RCTTypeFull:
if (!rct::verRct(rv, true))
{
MERROR_VER("rct signature semantics check failed");
set_semantics_failed(tx_info[n].tx_hash);
tx_info[n].tvc.m_verifivation_failed = true;
tx_info[n].result = false;
break;
}
break;
case rct::RCTTypeBulletproof:
case rct::RCTTypeBulletproof2:
if (!is_canonical_bulletproof_layout(rv.p.bulletproofs))
{
MERROR_VER("Bulletproof does not have canonical form");
set_semantics_failed(tx_info[n].tx_hash);
tx_info[n].tvc.m_verifivation_failed = true;
tx_info[n].result = false;
break;
}
rvv.push_back(&rv); // delayed batch verification
break;
default:
MERROR_VER("Unknown rct type: " << rv.type);
set_semantics_failed(tx_info[n].tx_hash);
tx_info[n].tvc.m_verifivation_failed = true;
tx_info[n].result = false;
break;
}
}
if (!rvv.empty() && !rct::verRctSemanticsSimple(rvv))
{
LOG_PRINT_L1("One transaction among this group has bad semantics, verifying one at a time");
ret = false;
const bool assumed_bad = rvv.size() == 1; // if there's only one tx, it must be the bad one
for (size_t n = 0; n < tx_info.size(); ++n)
{
if (!tx_info[n].result)
continue;
if (tx_info[n].tx->rct_signatures.type != rct::RCTTypeBulletproof && tx_info[n].tx->rct_signatures.type != rct::RCTTypeBulletproof2)
continue;
if (assumed_bad || !rct::verRctSemanticsSimple(tx_info[n].tx->rct_signatures))
{
set_semantics_failed(tx_info[n].tx_hash);
tx_info[n].tvc.m_verifivation_failed = true;
tx_info[n].result = false;
}
}
}
return ret;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_txs(const epee::span<const tx_blob_entry> tx_blobs, epee::span<tx_verification_context> tvc, relay_method tx_relay, bool relayed)
{
TRY_ENTRY();
if (tx_blobs.size() != tvc.size())
{
MERROR("tx_blobs and tx_verification_context spans must have equal size");
return false;
}
struct result { bool res; cryptonote::transaction tx; crypto::hash hash; };
std::vector<result> results(tx_blobs.size());
CRITICAL_REGION_LOCAL(m_incoming_tx_lock);
tools::threadpool& tpool = tools::threadpool::getInstance();
tools::threadpool::waiter waiter;
epee::span<tx_blob_entry>::const_iterator it = tx_blobs.begin();
for (size_t i = 0; i < tx_blobs.size(); i++, ++it) {
tpool.submit(&waiter, [&, i, it] {
try
{
results[i].res = handle_incoming_tx_pre(*it, tvc[i], results[i].tx, results[i].hash);
}
catch (const std::exception &e)
{
MERROR_VER("Exception in handle_incoming_tx_pre: " << e.what());
tvc[i].m_verifivation_failed = true;
results[i].res = false;
}
});
}
waiter.wait(&tpool);
it = tx_blobs.begin();
std::vector<bool> already_have(tx_blobs.size(), false);
for (size_t i = 0; i < tx_blobs.size(); i++, ++it) {
if (!results[i].res)
continue;
if(m_mempool.have_tx(results[i].hash, relay_category::legacy))
{
LOG_PRINT_L2("tx " << results[i].hash << "already have transaction in tx_pool");
already_have[i] = true;
}
else if(m_blockchain_storage.have_tx(results[i].hash))
{
LOG_PRINT_L2("tx " << results[i].hash << " already have transaction in blockchain");
already_have[i] = true;
}
else
{
tpool.submit(&waiter, [&, i, it] {
try
{
results[i].res = handle_incoming_tx_post(*it, tvc[i], results[i].tx, results[i].hash);
}
catch (const std::exception &e)
{
MERROR_VER("Exception in handle_incoming_tx_post: " << e.what());
tvc[i].m_verifivation_failed = true;
results[i].res = false;
}
});
}
}
waiter.wait(&tpool);
std::vector<tx_verification_batch_info> tx_info;
tx_info.reserve(tx_blobs.size());
for (size_t i = 0; i < tx_blobs.size(); i++) {
if (!results[i].res || already_have[i])
continue;
tx_info.push_back({&results[i].tx, results[i].hash, tvc[i], results[i].res});
}
if (!tx_info.empty())
handle_incoming_tx_accumulated_batch(tx_info, tx_relay == relay_method::block);
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;
}
if (tx_relay == relay_method::block)
get_blockchain_storage().on_new_tx_from_block(results[i].tx);
if (already_have[i])
continue;
const uint64_t weight = results[i].tx.pruned ? get_pruned_transaction_weight(results[i].tx) : get_transaction_weight(results[i].tx, it->blob.size());
ok &= add_new_tx(results[i].tx, results[i].hash, tx_blobs[i].blob, weight, tvc[i], tx_relay, relayed);
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 tx_blob_entry& tx_blob, tx_verification_context& tvc, relay_method tx_relay, bool relayed)
{
return handle_incoming_txs({std::addressof(tx_blob), 1}, {std::addressof(tvc), 1}, tx_relay, relayed);
}
//-----------------------------------------------------------------------------------------------
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.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 > 1)
{
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 == 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;
}
}
// for version > 1, ringct signatures check verifies amounts match
if(!keeped_by_block && get_transaction_weight(tx) >= m_blockchain_storage.get_current_cumulative_block_weight_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE)
{
MERROR_VER("tx is too large " << get_transaction_weight(tx) << ", expected not bigger than " << m_blockchain_storage.get_current_cumulative_block_weight_limit() - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE);
return false;
}
//check if tx use different key images
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;
}
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::vector<transaction> txs;
std::vector<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;
});
}
return std::pair<uint64_t, uint64_t>(emission_amount, total_fee_amount);
}
//-----------------------------------------------------------------------------------------------
bool core::check_tx_inputs_keyimages_diff(const transaction& tx) const
{
std::unordered_set<crypto::key_image> ki;
for(const auto& in: tx.vin)
{
CHECKED_GET_SPECIFIC_VARIANT(in, const txin_to_key, tokey_in, false);
if(!ki.insert(tokey_in.k_image).second)
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::check_tx_inputs_ring_members_diff(const transaction& tx) const
{
const uint8_t version = m_blockchain_storage.get_current_hard_fork_version();
if (version >= 6)
{
for(const auto& in: tx.vin)
{
CHECKED_GET_SPECIFIC_VARIANT(in, const txin_to_key, tokey_in, false);
for (size_t n = 1; n < tokey_in.key_offsets.size(); ++n)
if (tokey_in.key_offsets[n] == 0)
return false;
}
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::check_tx_inputs_keyimages_domain(const transaction& tx) const
{
std::unordered_set<crypto::key_image> ki;
for(const auto& in: tx.vin)
{
CHECKED_GET_SPECIFIC_VARIANT(in, const txin_to_key, tokey_in, false);
if (!(rct::scalarmultKey(rct::ki2rct(tokey_in.k_image), rct::curveOrder()) == rct::identity()))
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::add_new_tx(transaction& tx, tx_verification_context& tvc, relay_method tx_relay, bool relayed)
{
crypto::hash tx_hash = get_transaction_hash(tx);
blobdata bl;
t_serializable_object_to_blob(tx, bl);
size_t tx_weight = get_transaction_weight(tx, bl.size());
return add_new_tx(tx, tx_hash, bl, tx_weight, tvc, tx_relay, relayed);
}
//-----------------------------------------------------------------------------------------------
size_t core::get_blockchain_total_transactions() const
{
return m_blockchain_storage.get_total_transactions();
}
//-----------------------------------------------------------------------------------------------
bool core::add_new_tx(transaction& tx, const crypto::hash& tx_hash, const cryptonote::blobdata &blob, size_t tx_weight, tx_verification_context& tvc, relay_method tx_relay, bool relayed)
{
if(m_mempool.have_tx(tx_hash, relay_category::legacy))
{
LOG_PRINT_L2("tx " << tx_hash << "already have transaction in tx_pool");
return true;
}
if(m_blockchain_storage.have_tx(tx_hash))
{
LOG_PRINT_L2("tx " << tx_hash << " already have transaction in blockchain");
return true;
}
uint8_t version = m_blockchain_storage.get_current_hard_fork_version();
return m_mempool.add_tx(tx, tx_hash, blob, tx_weight, tvc, tx_relay, relayed, version);
}
//-----------------------------------------------------------------------------------------------
bool core::relay_txpool_transactions()
{
// we attempt to relay txes that should be relayed, but were not
std::vector<std::tuple<crypto::hash, cryptonote::blobdata, relay_method>> txs;
if (m_mempool.get_relayable_transactions(txs) && !txs.empty())
{
NOTIFY_NEW_TRANSACTIONS::request public_req{};
NOTIFY_NEW_TRANSACTIONS::request private_req{};
for (auto& tx : txs)
{
switch (std::get<2>(tx))
{
default:
case relay_method::none:
break;
case relay_method::local:
private_req.txs.push_back(std::move(std::get<1>(tx)));
break;
case relay_method::block:
case relay_method::fluff:
public_req.txs.push_back(std::move(std::get<1>(tx)));
break;
}
}
/* All txes are sent on randomized timers per connection in
`src/cryptonote_protocol/levin_notify.cpp.` They are either sent with
"white noise" delays or via diffusion (Dandelion++ fluff). So
re-relaying public and private _should_ be acceptable here. */
const boost::uuids::uuid source = boost::uuids::nil_uuid();
if (!public_req.txs.empty())
get_protocol()->relay_transactions(public_req, source, epee::net_utils::zone::public_);
if (!private_req.txs.empty())
get_protocol()->relay_transactions(private_req, source, epee::net_utils::zone::invalid);
}
return true;
}
//-----------------------------------------------------------------------------------------------
void core::on_transactions_relayed(const epee::span<const cryptonote::blobdata> tx_blobs, const relay_method tx_relay)
{
std::vector<crypto::hash> tx_hashes{};
tx_hashes.resize(tx_blobs.size());
cryptonote::transaction tx{};
for (std::size_t i = 0; i < tx_blobs.size(); ++i)
{
if (!parse_and_validate_tx_from_blob(tx_blobs[i], tx, tx_hashes[i]))
{
LOG_ERROR("Failed to parse relayed transaction");
return;
}
}
m_mempool.set_relayed(epee::to_span(tx_hashes), tx_relay);
}
//-----------------------------------------------------------------------------------------------
bool core::get_block_template(block& b, const account_public_address& adr, difficulty_type& diffic, uint64_t& height, uint64_t& expected_reward, const blobdata& ex_nonce)
{
return m_blockchain_storage.create_block_template(b, adr, diffic, height, expected_reward, ex_nonce);
}
//-----------------------------------------------------------------------------------------------
bool core::get_block_template(block& b, const crypto::hash *prev_block, const account_public_address& adr, difficulty_type& diffic, uint64_t& height, uint64_t& expected_reward, const blobdata& ex_nonce)
{
return m_blockchain_storage.create_block_template(b, prev_block, adr, diffic, height, expected_reward, ex_nonce);
}
//-----------------------------------------------------------------------------------------------
bool core::find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, bool clip_pruned, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const
{
return m_blockchain_storage.find_blockchain_supplement(qblock_ids, clip_pruned, resp);
}
//-----------------------------------------------------------------------------------------------
bool core::find_blockchain_supplement(const uint64_t req_start_block, const std::list<crypto::hash>& qblock_ids, std::vector<std::pair<std::pair<cryptonote::blobdata, crypto::hash>, std::vector<std::pair<crypto::hash, cryptonote::blobdata> > > >& blocks, uint64_t& total_height, uint64_t& start_height, bool pruned, bool get_miner_tx_hash, size_t max_count) const
{
return m_blockchain_storage.find_blockchain_supplement(req_start_block, qblock_ids, blocks, total_height, start_height, pruned, get_miner_tx_hash, max_count);
}
//-----------------------------------------------------------------------------------------------
bool core::get_outs(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res) const
{
return m_blockchain_storage.get_outs(req, res);
}
//-----------------------------------------------------------------------------------------------
bool core::get_output_distribution(uint64_t amount, uint64_t from_height, uint64_t to_height, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base) const
{
return m_blockchain_storage.get_output_distribution(amount, from_height, to_height, start_height, distribution, base);
}
//-----------------------------------------------------------------------------------------------
bool core::get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs) const
{
return m_blockchain_storage.get_tx_outputs_gindexs(tx_id, indexs);
}
//-----------------------------------------------------------------------------------------------
bool core::get_tx_outputs_gindexs(const crypto::hash& tx_id, size_t n_txes, std::vector<std::vector<uint64_t>>& indexs) const
{
return m_blockchain_storage.get_tx_outputs_gindexs(tx_id, n_txes, indexs);
}
//-----------------------------------------------------------------------------------------------
void core::pause_mine()
{
m_miner.pause();
}
//-----------------------------------------------------------------------------------------------
void core::resume_mine()
{
m_miner.resume();
}
//-----------------------------------------------------------------------------------------------
block_complete_entry get_block_complete_entry(block& b, tx_memory_pool &pool)
{
block_complete_entry bce;
bce.block = cryptonote::block_to_blob(b);
bce.block_weight = 0; // we can leave it to 0, those txes aren't pruned
for (const auto &tx_hash: b.tx_hashes)
{
cryptonote::blobdata txblob;
CHECK_AND_ASSERT_THROW_MES(pool.get_transaction(tx_hash, txblob, relay_category::all), "Transaction not found in pool");
bce.txs.push_back({txblob, crypto::null_hash});
}
return bce;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_block_found(block& b, block_verification_context &bvc)
{
bvc = {};
m_miner.pause();
std::vector<block_complete_entry> blocks;
try
{
blocks.push_back(get_block_complete_entry(b, m_mempool));
}
catch (const std::exception &e)
{
m_miner.resume();
return false;
}
std::vector<block> pblocks;
if (!prepare_handle_incoming_blocks(blocks, pblocks))
{
MERROR("Block found, but failed to prepare to add");
m_miner.resume();
return false;
}
m_blockchain_storage.add_new_block(b, bvc);
cleanup_handle_incoming_blocks(true);
//anyway - update miner template
update_miner_block_template();
m_miner.resume();
CHECK_AND_ASSERT_MES(!bvc.m_verifivation_failed, false, "mined block failed verification");
if(bvc.m_added_to_main_chain)
{
cryptonote_connection_context exclude_context = {};
NOTIFY_NEW_BLOCK::request arg = AUTO_VAL_INIT(arg);
arg.current_blockchain_height = m_blockchain_storage.get_current_blockchain_height();
std::vector<crypto::hash> missed_txs;
std::vector<cryptonote::blobdata> txs;
m_blockchain_storage.get_transactions_blobs(b.tx_hashes, txs, missed_txs);
if(missed_txs.size() && m_blockchain_storage.get_block_id_by_height(get_block_height(b)) != get_block_hash(b))
{
LOG_PRINT_L1("Block found but, seems that reorganize just happened after that, do not relay this block");
return true;
}
CHECK_AND_ASSERT_MES(txs.size() == b.tx_hashes.size() && !missed_txs.size(), false, "can't find some transactions in found block:" << get_block_hash(b) << " txs.size()=" << txs.size()
<< ", b.tx_hashes.size()=" << b.tx_hashes.size() << ", missed_txs.size()" << missed_txs.size());
block_to_blob(b, arg.b.block);
//pack transactions
for(auto& tx: txs)
arg.b.txs.push_back({tx, crypto::null_hash});
m_pprotocol->relay_block(arg, exclude_context);
}
return true;
}
//-----------------------------------------------------------------------------------------------
void core::on_synchronized()
{
m_miner.on_synchronized();
}
//-----------------------------------------------------------------------------------------------
void core::safesyncmode(const bool onoff)
{
m_blockchain_storage.safesyncmode(onoff);
}
//-----------------------------------------------------------------------------------------------
bool core::add_new_block(const block& b, block_verification_context& bvc)
{
return m_blockchain_storage.add_new_block(b, bvc);
}
//-----------------------------------------------------------------------------------------------
bool core::prepare_handle_incoming_blocks(const std::vector<block_complete_entry> &blocks_entry, std::vector<block> &blocks)
{
m_incoming_tx_lock.lock();
if (!m_blockchain_storage.prepare_handle_incoming_blocks(blocks_entry, blocks))
{
cleanup_handle_incoming_blocks(false);
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::cleanup_handle_incoming_blocks(bool force_sync)
{
bool success = false;
try {
success = m_blockchain_storage.cleanup_handle_incoming_blocks(force_sync);
}
catch (...) {}
m_incoming_tx_lock.unlock();
return success;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_block(const blobdata& block_blob, const block *b, block_verification_context& bvc, bool update_miner_blocktemplate)
{
TRY_ENTRY();
bvc = {};
if (!check_incoming_block_size(block_blob))
{
bvc.m_verifivation_failed = true;
return false;
}
if (((size_t)-1) <= 0xffffffff && block_blob.size() >= 0x3fffffff)
MWARNING("This block's size is " << block_blob.size() << ", closing on the 32 bit limit");
// load json & DNS checkpoints every 10min/hour respectively,
// 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.");
block lb;
if (!b)
{
crypto::hash block_hash;
if(!parse_and_validate_block_from_blob(block_blob, lb, block_hash))
{
LOG_PRINT_L1("Failed to parse and validate new block");
bvc.m_verifivation_failed = true;
return false;
}
b = &lb;
}
add_new_block(*b, bvc);
if(update_miner_blocktemplate && bvc.m_added_to_main_chain)
update_miner_block_template();
return true;
CATCH_ENTRY_L0("core::handle_incoming_block()", false);
}
//-----------------------------------------------------------------------------------------------
// Used by the RPC server to check the size of an incoming
// block_blob
bool core::check_incoming_block_size(const blobdata& block_blob) const
{
// note: we assume block weight is always >= block blob size, so we check incoming
// blob size against the block weight limit, which acts as a sanity check without
// having to parse/weigh first; in fact, since the block blob is the block header
// plus the tx hashes, the weight will typically be much larger than the blob size
if(block_blob.size() > m_blockchain_storage.get_current_cumulative_block_weight_limit() + BLOCK_SIZE_SANITY_LEEWAY)
{
LOG_PRINT_L1("WRONG BLOCK BLOB, sanity check failed on size " << block_blob.size() << ", rejected");
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
crypto::hash core::get_tail_id() const
{
return m_blockchain_storage.get_tail_id();
}
//-----------------------------------------------------------------------------------------------
difficulty_type core::get_block_cumulative_difficulty(uint64_t height) const
{
return m_blockchain_storage.get_db().get_block_cumulative_difficulty(height);
}
//-----------------------------------------------------------------------------------------------
size_t core::get_pool_transactions_count() const
{
return m_mempool.get_transactions_count();
}
//-----------------------------------------------------------------------------------------------
bool core::have_block(const crypto::hash& id) const
{
return m_blockchain_storage.have_block(id);
}
//-----------------------------------------------------------------------------------------------
bool core::parse_tx_from_blob(transaction& tx, crypto::hash& tx_hash, const blobdata& blob) const
{
return parse_and_validate_tx_from_blob(blob, tx, tx_hash);
}
//-----------------------------------------------------------------------------------------------
bool core::check_tx_syntax(const transaction& tx) const
{
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transactions(std::vector<transaction>& txs, bool include_sensitive_data) const
{
m_mempool.get_transactions(txs, include_sensitive_data);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transaction_hashes(std::vector<crypto::hash>& txs, bool include_sensitive_data) const
{
m_mempool.get_transaction_hashes(txs, include_sensitive_data);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transaction_stats(struct txpool_stats& stats, bool include_sensitive_data) const
{
m_mempool.get_transaction_stats(stats, include_sensitive_data);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transaction(const crypto::hash &id, cryptonote::blobdata& tx, relay_category tx_category) const
{
return m_mempool.get_transaction(id, tx, tx_category);
}
//-----------------------------------------------------------------------------------------------
bool core::pool_has_tx(const crypto::hash &id) const
{
return m_mempool.have_tx(id, relay_category::legacy);
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transactions_and_spent_keys_info(std::vector<tx_info>& tx_infos, std::vector<spent_key_image_info>& key_image_infos, bool include_sensitive_data) const
{
return m_mempool.get_transactions_and_spent_keys_info(tx_infos, key_image_infos, include_sensitive_data);
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_for_rpc(std::vector<cryptonote::rpc::tx_in_pool>& tx_infos, cryptonote::rpc::key_images_with_tx_hashes& key_image_infos) const
{
return m_mempool.get_pool_for_rpc(tx_infos, key_image_infos);
}
//-----------------------------------------------------------------------------------------------
bool core::get_short_chain_history(std::list<crypto::hash>& ids) const
{
return m_blockchain_storage.get_short_chain_history(ids);
}
//-----------------------------------------------------------------------------------------------
bool core::handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp, cryptonote_connection_context& context)
{
return m_blockchain_storage.handle_get_objects(arg, rsp);
}
//-----------------------------------------------------------------------------------------------
crypto::hash core::get_block_id_by_height(uint64_t height) const
{
return m_blockchain_storage.get_block_id_by_height(height);
}
//-----------------------------------------------------------------------------------------------
bool core::get_block_by_hash(const crypto::hash &h, block &blk, bool *orphan) const
{
return m_blockchain_storage.get_block_by_hash(h, blk, orphan);
}
//-----------------------------------------------------------------------------------------------
std::string core::print_pool(bool short_format) const
{
return m_mempool.print_pool(short_format);
}
//-----------------------------------------------------------------------------------------------
bool core::update_miner_block_template()
{
m_miner.on_block_chain_update();
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::on_idle()
{
if(!m_starter_message_showed)
{
std::string main_message;
if (m_offline)
main_message = "The daemon is running offline and will not attempt to sync to the Monero network.";
else
main_message = "The daemon will start synchronizing with the network. This may take a long time to complete.";
MGINFO_YELLOW(ENDL << "**********************************************************************" << ENDL
<< main_message << ENDL
<< ENDL
<< "You can set the level of process detailization through \"set_log <level|categories>\" command," << ENDL
<< "where <level> is between 0 (no details) and 4 (very verbose), or custom category based levels (eg, *:WARNING)." << ENDL
<< ENDL
<< "Use the \"help\" command to see a simplified list of available commands." << ENDL
<< "Use the \"help_advanced\" command to see an advanced list of available commands." << ENDL
<< "Use \"help_advanced <command>\" to see a command's documentation." << ENDL
<< "**********************************************************************" << ENDL);
m_starter_message_showed = true;
}
m_fork_moaner.do_call(boost::bind(&core::check_fork_time, this));
m_txpool_auto_relayer.do_call(boost::bind(&core::relay_txpool_transactions, this));
m_check_updates_interval.do_call(boost::bind(&core::check_updates, this));
m_check_disk_space_interval.do_call(boost::bind(&core::check_disk_space, this));
m_block_rate_interval.do_call(boost::bind(&core::check_block_rate, this));
m_blockchain_pruning_interval.do_call(boost::bind(&core::update_blockchain_pruning, this));
m_miner.on_idle();
m_mempool.on_idle();
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::check_fork_time()
{
if (m_nettype == FAKECHAIN)
return true;
HardFork::State state = m_blockchain_storage.get_hard_fork_state();
el::Level level;
switch (state) {
case HardFork::LikelyForked:
level = el::Level::Warning;
MCLOG_RED(level, "global", "**********************************************************************");
MCLOG_RED(level, "global", "Last scheduled hard fork is too far in the past.");
MCLOG_RED(level, "global", "We are most likely forked from the network. Daemon update needed now.");
MCLOG_RED(level, "global", "**********************************************************************");
break;
case HardFork::UpdateNeeded:
level = el::Level::Info;
MCLOG(level, "global", el::Color::Default, "Last scheduled hard fork time suggests a daemon update will be released within the next couple months.");
break;
default:
break;
}
return true;
}
//-----------------------------------------------------------------------------------------------
uint8_t core::get_ideal_hard_fork_version() const
{
return get_blockchain_storage().get_ideal_hard_fork_version();
}
//-----------------------------------------------------------------------------------------------
uint8_t core::get_ideal_hard_fork_version(uint64_t height) const
{
return get_blockchain_storage().get_ideal_hard_fork_version(height);
}
//-----------------------------------------------------------------------------------------------
uint8_t core::get_hard_fork_version(uint64_t height) const
{
return get_blockchain_storage().get_hard_fork_version(height);
}
//-----------------------------------------------------------------------------------------------
uint64_t core::get_earliest_ideal_height_for_version(uint8_t version) const
{
return get_blockchain_storage().get_earliest_ideal_height_for_version(version);
}
//-----------------------------------------------------------------------------------------------
bool core::check_updates()
{
static const char software[] = "monero";
#ifdef BUILD_TAG
static const char buildtag[] = BOOST_PP_STRINGIZE(BUILD_TAG);
static const char subdir[] = "cli"; // because it can never be simple
#else
static const char buildtag[] = "source";
static const char subdir[] = "source"; // because it can never be simple
#endif
if (m_offline)
return true;
if (check_updates_level == UPDATES_DISABLED)
return true;
std::string version, hash;
MCDEBUG("updates", "Checking for a new " << software << " version for " << buildtag);
if (!tools::check_updates(software, buildtag, version, hash))
return false;
if (tools::vercmp(version.c_str(), MONERO_VERSION) <= 0)
{
m_update_available = false;
return true;
}
std::string url = tools::get_update_url(software, subdir, buildtag, version, true);
MCLOG_CYAN(el::Level::Info, "global", "Version " << version << " of " << software << " for " << buildtag << " is available: " << url << ", SHA256 hash " << hash);
m_update_available = true;
if (check_updates_level == UPDATES_NOTIFY)
return true;
url = tools::get_update_url(software, subdir, buildtag, version, false);
std::string filename;
const char *slash = strrchr(url.c_str(), '/');
if (slash)
filename = slash + 1;
else
filename = std::string(software) + "-update-" + version;
boost::filesystem::path path(epee::string_tools::get_current_module_folder());
path /= filename;
boost::unique_lock<boost::mutex> lock(m_update_mutex);
if (m_update_download != 0)
{
MCDEBUG("updates", "Already downloading update");
return true;
}
crypto::hash file_hash;
if (!tools::sha256sum(path.string(), file_hash) || (hash != epee::string_tools::pod_to_hex(file_hash)))
{
MCDEBUG("updates", "We don't have that file already, downloading");
const std::string tmppath = path.string() + ".tmp";
if (epee::file_io_utils::is_file_exist(tmppath))
{
MCDEBUG("updates", "We have part of the file already, resuming download");
}
m_last_update_length = 0;
m_update_download = tools::download_async(tmppath, url, [this, hash, path](const std::string &tmppath, const std::string &uri, bool success) {
bool remove = false, good = true;
if (success)
{
crypto::hash file_hash;
if (!tools::sha256sum(tmppath, file_hash))
{
MCERROR("updates", "Failed to hash " << tmppath);
remove = true;
good = false;
}
else if (hash != epee::string_tools::pod_to_hex(file_hash))
{
MCERROR("updates", "Download from " << uri << " does not match the expected hash");
remove = true;
good = false;
}
}
else
{
MCERROR("updates", "Failed to download " << uri);
good = false;
}
boost::unique_lock<boost::mutex> lock(m_update_mutex);
m_update_download = 0;
if (success && !remove)
{
std::error_code e = tools::replace_file(tmppath, path.string());
if (e)
{
MCERROR("updates", "Failed to rename downloaded file");
good = false;
}
}
else if (remove)
{
if (!boost::filesystem::remove(tmppath))
{
MCERROR("updates", "Failed to remove invalid downloaded file");
good = false;
}
}
if (good)
MCLOG_CYAN(el::Level::Info, "updates", "New version downloaded to " << path.string());
}, [this](const std::string &path, const std::string &uri, size_t length, ssize_t content_length) {
if (length >= m_last_update_length + 1024 * 1024 * 10)
{
m_last_update_length = length;
MCDEBUG("updates", "Downloaded " << length << "/" << (content_length ? std::to_string(content_length) : "unknown"));
}
return true;
});
}
else
{
MCDEBUG("updates", "We already have " << path << " with expected hash");
}
lock.unlock();
if (check_updates_level == UPDATES_DOWNLOAD)
return true;
MCERROR("updates", "Download/update not implemented yet");
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::check_disk_space()
{
uint64_t free_space = get_free_space();
if (free_space < 1ull * 1024 * 1024 * 1024) // 1 GB
{
const el::Level level = el::Level::Warning;
MCLOG_RED(level, "global", "Free space is below 1 GB on " << m_config_folder);
}
return true;
}
//-----------------------------------------------------------------------------------------------
double factorial(unsigned int n)
{
if (n <= 1)
return 1.0;
double f = n;
while (n-- > 1)
f *= n;
return f;
}
//-----------------------------------------------------------------------------------------------
static double probability1(unsigned int blocks, unsigned int expected)
{
// https://www.umass.edu/wsp/resources/poisson/#computing
return pow(expected, blocks) / (factorial(blocks) * exp(expected));
}
//-----------------------------------------------------------------------------------------------
static double probability(unsigned int blocks, unsigned int expected)
{
double p = 0.0;
if (blocks <= expected)
{
for (unsigned int b = 0; b <= blocks; ++b)
p += probability1(b, expected);
}
else if (blocks > expected)
{
for (unsigned int b = blocks; b <= expected * 3 /* close enough */; ++b)
p += probability1(b, expected);
}
return p;
}
//-----------------------------------------------------------------------------------------------
bool core::check_block_rate()
{
if (m_offline || m_nettype == FAKECHAIN || m_target_blockchain_height > get_current_blockchain_height() || m_target_blockchain_height == 0)
{
MDEBUG("Not checking block rate, offline or syncing");
return true;
}
static constexpr double threshold = 1. / (864000 / DIFFICULTY_TARGET_V2); // one false positive every 10 days
static constexpr unsigned int max_blocks_checked = 150;
const time_t now = time(NULL);
const std::vector<time_t> timestamps = m_blockchain_storage.get_last_block_timestamps(max_blocks_checked);
static const unsigned int seconds[] = { 5400, 3600, 1800, 1200, 600 };
for (size_t n = 0; n < sizeof(seconds)/sizeof(seconds[0]); ++n)
{
unsigned int b = 0;
const time_t time_boundary = now - static_cast<time_t>(seconds[n]);
for (time_t ts: timestamps) b += ts >= time_boundary;
const double p = probability(b, seconds[n] / DIFFICULTY_TARGET_V2);
MDEBUG("blocks in the last " << seconds[n] / 60 << " minutes: " << b << " (probability " << p << ")");
if (p < threshold)
{
MWARNING("There were " << b << (b == max_blocks_checked ? " or more" : "") << " blocks in the last " << seconds[n] / 60 << " minutes, there might be large hash rate changes, or we might be partitioned, cut off from the Monero network or under attack. Or it could be just sheer bad luck.");
std::shared_ptr<tools::Notify> block_rate_notify = m_block_rate_notify;
if (block_rate_notify)
{
auto expected = seconds[n] / DIFFICULTY_TARGET_V2;
block_rate_notify->notify("%t", std::to_string(seconds[n] / 60).c_str(), "%b", std::to_string(b).c_str(), "%e", std::to_string(expected).c_str(), NULL);
}
break; // no need to look further
}
}
return true;
}
//-----------------------------------------------------------------------------------------------
void core::flush_bad_txs_cache()
{
bad_semantics_txes_lock.lock();
for (int idx = 0; idx < 2; ++idx)
bad_semantics_txes[idx].clear();
bad_semantics_txes_lock.unlock();
}
//-----------------------------------------------------------------------------------------------
bool core::update_blockchain_pruning()
{
return m_blockchain_storage.update_blockchain_pruning();
}
//-----------------------------------------------------------------------------------------------
bool core::check_blockchain_pruning()
{
return m_blockchain_storage.check_blockchain_pruning();
}
//-----------------------------------------------------------------------------------------------
void core::set_target_blockchain_height(uint64_t target_blockchain_height)
{
m_target_blockchain_height = target_blockchain_height;
}
//-----------------------------------------------------------------------------------------------
uint64_t core::get_target_blockchain_height() const
{
return m_target_blockchain_height;
}
//-----------------------------------------------------------------------------------------------
uint64_t core::prevalidate_block_hashes(uint64_t height, const std::vector<crypto::hash> &hashes, const std::vector<uint64_t> &weights)
{
return get_blockchain_storage().prevalidate_block_hashes(height, hashes, weights);
}
//-----------------------------------------------------------------------------------------------
uint64_t core::get_free_space() const
{
boost::filesystem::path path(m_config_folder);
boost::filesystem::space_info si = boost::filesystem::space(path);
return si.available;
}
//-----------------------------------------------------------------------------------------------
uint32_t core::get_blockchain_pruning_seed() const
{
return get_blockchain_storage().get_blockchain_pruning_seed();
}
//-----------------------------------------------------------------------------------------------
bool core::prune_blockchain(uint32_t pruning_seed)
{
return get_blockchain_storage().prune_blockchain(pruning_seed);
}
//-----------------------------------------------------------------------------------------------
bool core::is_within_compiled_block_hash_area(uint64_t height) const
{
return get_blockchain_storage().is_within_compiled_block_hash_area(height);
}
//-----------------------------------------------------------------------------------------------
bool core::has_block_weights(uint64_t height, uint64_t nblocks) const
{
return get_blockchain_storage().has_block_weights(height, nblocks);
}
//-----------------------------------------------------------------------------------------------
std::time_t core::get_start_time() const
{
return start_time;
}
//-----------------------------------------------------------------------------------------------
void core::graceful_exit()
{
raise(SIGTERM);
}
}
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