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danicoin/src/cryptonote_core/cryptonote_core.cpp
moneromooo-monero 9effa55311
core: bound the amount of entries in bad tx semantics cache 
This is to prevent unbounded memory use. Since I don't think there
is a container that has quick insert, quick lookup, and automatic
FIFO, I use two and swap every N, clearing the oldest one.
2017-02-23 20:34:11 +00:00

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// Copyright (c) 2014-2017, 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 "include_base_utils.h"
using namespace epee;
#include <unordered_set>
#include "cryptonote_core.h"
#include "common/command_line.h"
#include "common/util.h"
#include "common/updates.h"
#include "common/download.h"
#include "warnings.h"
#include "crypto/crypto.h"
#include "cryptonote_config.h"
#include "cryptonote_tx_utils.h"
#include "misc_language.h"
#include <csignal>
#include <p2p/net_node.h>
#include "cryptonote_basic/checkpoints.h"
#include "ringct/rctTypes.h"
#include "blockchain_db/blockchain_db.h"
#include "blockchain_db/lmdb/db_lmdb.h"
#if defined(BERKELEY_DB)
#include "blockchain_db/berkeleydb/db_bdb.h"
#endif
#include "ringct/rctSigs.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
namespace cryptonote
{
//-----------------------------------------------------------------------------------------------
core::core(i_cryptonote_protocol* pprotocol):
m_mempool(m_blockchain_storage),
m_blockchain_storage(m_mempool),
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)
{
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_testnet || m_fakechain) 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();
}
//-----------------------------------------------------------------------------------
void core::init_options(boost::program_options::options_description& desc)
{
command_line::add_arg(desc, command_line::arg_data_dir, tools::get_default_data_dir());
command_line::add_arg(desc, command_line::arg_testnet_data_dir, (boost::filesystem::path(tools::get_default_data_dir()) / "testnet").string());
command_line::add_arg(desc, command_line::arg_test_drop_download);
command_line::add_arg(desc, command_line::arg_test_drop_download_height);
command_line::add_arg(desc, command_line::arg_testnet_on);
command_line::add_arg(desc, command_line::arg_dns_checkpoints);
command_line::add_arg(desc, command_line::arg_db_type);
command_line::add_arg(desc, command_line::arg_prep_blocks_threads);
command_line::add_arg(desc, command_line::arg_fast_block_sync);
command_line::add_arg(desc, command_line::arg_db_sync_mode);
command_line::add_arg(desc, command_line::arg_show_time_stats);
command_line::add_arg(desc, command_line::arg_block_sync_size);
command_line::add_arg(desc, command_line::arg_check_updates);
// we now also need some of net_node's options (p2p bind arg, for separate data dir)
command_line::add_arg(desc, nodetool::arg_testnet_p2p_bind_port, false);
command_line::add_arg(desc, nodetool::arg_p2p_bind_port, false);
miner::init_options(desc);
}
//-----------------------------------------------------------------------------------------------
bool core::handle_command_line(const boost::program_options::variables_map& vm)
{
m_testnet = command_line::get_arg(vm, command_line::arg_testnet_on);
auto data_dir_arg = m_testnet ? command_line::arg_testnet_data_dir : command_line::arg_data_dir;
m_config_folder = command_line::get_arg(vm, data_dir_arg);
auto data_dir = boost::filesystem::path(m_config_folder);
if (!m_testnet && !m_fakechain)
{
cryptonote::checkpoints checkpoints;
if (!checkpoints.init_default_checkpoints())
{
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, command_line::arg_dns_checkpoints));
test_drop_download_height(command_line::get_arg(vm, command_line::arg_test_drop_download_height));
if (command_line::get_arg(vm, command_line::arg_test_drop_download) == true)
test_drop_download();
return true;
}
//-----------------------------------------------------------------------------------------------
uint64_t core::get_current_blockchain_height() const
{
return m_blockchain_storage.get_current_blockchain_height();
}
//-----------------------------------------------------------------------------------------------
bool core::get_blockchain_top(uint64_t& height, crypto::hash& top_id) const
{
top_id = m_blockchain_storage.get_tail_id(height);
return true;
}
//-----------------------------------------------------------------------------------------------
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_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 cryptonote::test_options *test_options)
{
start_time = std::time(nullptr);
m_fakechain = test_options != NULL;
bool r = handle_command_line(vm);
bool testnet = command_line::get_arg(vm, command_line::arg_testnet_on);
auto p2p_bind_arg = testnet ? nodetool::arg_testnet_p2p_bind_port : nodetool::arg_p2p_bind_port;
std::string m_port = command_line::get_arg(vm, p2p_bind_arg);
std::string m_config_folder_mempool = m_config_folder;
if ((!testnet && m_port != std::to_string(::config::P2P_DEFAULT_PORT))
|| (testnet && m_port != std::to_string(::config::testnet::P2P_DEFAULT_PORT))) {
m_config_folder_mempool = m_config_folder_mempool + "/" + m_port;
}
r = m_mempool.init(m_fakechain ? std::string() : m_config_folder_mempool);
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize memory pool");
std::string db_type = command_line::get_arg(vm, command_line::arg_db_type);
std::string db_sync_mode = command_line::get_arg(vm, command_line::arg_db_sync_mode);
bool fast_sync = command_line::get_arg(vm, command_line::arg_fast_block_sync) != 0;
uint64_t blocks_threads = command_line::get_arg(vm, command_line::arg_prep_blocks_threads);
std::string check_updates_string = command_line::get_arg(vm, command_line::arg_check_updates);
boost::filesystem::path folder(m_config_folder);
if (m_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 (...) { }
BlockchainDB* db = nullptr;
uint64_t DBS_FAST_MODE = 0;
uint64_t DBS_FASTEST_MODE = 0;
uint64_t DBS_SAFE_MODE = 0;
if (db_type == "lmdb")
{
db = new BlockchainLMDB();
DBS_SAFE_MODE = MDB_NORDAHEAD;
DBS_FAST_MODE = MDB_NORDAHEAD | MDB_NOSYNC;
DBS_FASTEST_MODE = MDB_NORDAHEAD | MDB_NOSYNC | MDB_WRITEMAP | MDB_MAPASYNC;
}
else
{
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_async;
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(" :"));
for(const auto &option : options)
MDEBUG("option: " << option);
// default to fast:async:1
uint64_t DEFAULT_FLAGS = DBS_FAST_MODE;
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 = DBS_SAFE_MODE;
sync_mode = db_nosync;
}
else if(options[0] == "fast")
db_flags = DBS_FAST_MODE;
else if(options[0] == "fastest")
{
db_flags = DBS_FASTEST_MODE;
blocks_per_sync = 1000; // default to fastest:async:1000
}
else
db_flags = DEFAULT_FLAGS;
}
if(options.size() >= 2 && !safemode)
{
if(options[1] == "sync")
sync_mode = db_sync;
else if(options[1] == "async")
sync_mode = 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;
}
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);
r = m_blockchain_storage.init(db, m_testnet, test_options);
// 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, command_line::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, command_line::arg_block_sync_size);
if (block_sync_size == 0)
block_sync_size = BLOCKS_SYNCHRONIZING_DEFAULT_COUNT;
// 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_testnet);
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize miner instance");
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(const blobdata& tx_blob, tx_verification_context& tvc, bool keeped_by_block, bool relayed, bool do_not_relay)
{
tvc = boost::value_initialized<tx_verification_context>();
//want to process all transactions sequentially
CRITICAL_REGION_LOCAL(m_incoming_tx_lock);
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;
}
crypto::hash tx_hash = null_hash;
crypto::hash tx_prefixt_hash = null_hash;
transaction tx;
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;
for (int idx = 0; idx < 2; ++idx)
{
if (bad_semantics_txes[idx].find(tx_hash) != bad_semantics_txes[idx].end())
{
LOG_PRINT_L1("Transaction already seen with bad semantics, rejected");
tvc.m_verifivation_failed = true;
return false;
}
}
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
tvc.m_verifivation_failed = true;
return false;
}
if(m_mempool.have_tx(tx_hash))
{
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;
}
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;
}
// resolve outPk references in rct txes
// outPk aren't the only thing that need resolving for a fully resolved tx,
// but outPk (1) are needed now to check range proof semantics, and
// (2) do not need access to the blockchain to find data
if (tx.version >= 2)
{
rct::rctSig &rv = tx.rct_signatures;
if (rv.outPk.size() != tx.vout.size())
{
LOG_PRINT_L1("WRONG TRANSACTION BLOB, Bad outPk size in tx " << tx_hash << ", rejected");
tvc.m_verifivation_failed = true;
return false;
}
for (size_t n = 0; n < tx.rct_signatures.outPk.size(); ++n)
rv.outPk[n].dest = rct::pk2rct(boost::get<txout_to_key>(tx.vout[n].target).key);
}
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[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();
}
return false;
}
bool r = add_new_tx(tx, tx_hash, tx_prefixt_hash, tx_blob.size(), tvc, keeped_by_block, relayed, do_not_relay);
if(tvc.m_verifivation_failed)
{MERROR_VER("Transaction verification failed: " << tx_hash);}
else if(tvc.m_verifivation_impossible)
{MERROR_VER("Transaction verification impossible: " << tx_hash);}
if(tvc.m_added_to_pool)
MDEBUG("tx added: " << tx_hash);
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.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_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;
}
//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_keyimages_domain(tx))
{
MERROR_VER("tx uses key image not in the valid domain");
return false;
}
if (tx.version >= 2)
{
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:
if (!rct::verRctSimple(rv, true))
{
MERROR_VER("rct signature semantics check failed");
return false;
}
break;
case rct::RCTTypeFull:
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;
}
//-----------------------------------------------------------------------------------------------
std::pair<uint64_t, uint64_t> core::get_coinbase_tx_sum(const uint64_t start_offset, const size_t count)
{
std::list<block> blocks;
uint64_t emission_amount = 0;
uint64_t total_fee_amount = 0;
this->get_blocks(start_offset, count, blocks);
for(auto& b: blocks)
{
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 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_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(const transaction& tx, tx_verification_context& tvc, bool keeped_by_block, bool relayed, bool do_not_relay)
{
crypto::hash tx_hash = get_transaction_hash(tx);
crypto::hash tx_prefix_hash = get_transaction_prefix_hash(tx);
blobdata bl;
t_serializable_object_to_blob(tx, bl);
return add_new_tx(tx, tx_hash, tx_prefix_hash, bl.size(), tvc, keeped_by_block, relayed, do_not_relay);
}
//-----------------------------------------------------------------------------------------------
size_t core::get_blockchain_total_transactions() const
{
return m_blockchain_storage.get_total_transactions();
}
//-----------------------------------------------------------------------------------------------
bool core::add_new_tx(const transaction& tx, const crypto::hash& tx_hash, const crypto::hash& tx_prefix_hash, size_t blob_size, tx_verification_context& tvc, bool keeped_by_block, bool relayed, bool do_not_relay)
{
if(m_mempool.have_tx(tx_hash))
{
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_size, tvc, keeped_by_block, relayed, do_not_relay, version);
}
//-----------------------------------------------------------------------------------------------
bool core::relay_txpool_transactions()
{
// we attempt to relay txes that should be relayed, but were not
std::list<std::pair<crypto::hash, cryptonote::transaction>> txs;
if (m_mempool.get_relayable_transactions(txs))
{
cryptonote_connection_context fake_context = AUTO_VAL_INIT(fake_context);
tx_verification_context tvc = AUTO_VAL_INIT(tvc);
NOTIFY_NEW_TRANSACTIONS::request r;
blobdata bl;
for (auto it = txs.begin(); it != txs.end(); ++it)
{
t_serializable_object_to_blob(it->second, bl);
r.txs.push_back(bl);
}
get_protocol()->relay_transactions(r, fake_context);
m_mempool.set_relayed(txs);
}
return true;
}
//-----------------------------------------------------------------------------------------------
void core::on_transaction_relayed(const cryptonote::blobdata& tx_blob)
{
std::list<std::pair<crypto::hash, cryptonote::transaction>> txs;
cryptonote::transaction tx;
crypto::hash tx_hash, tx_prefix_hash;
if (!parse_and_validate_tx_from_blob(tx_blob, tx, tx_hash, tx_prefix_hash))
{
LOG_ERROR("Failed to parse relayed transaction");
return;
}
txs.push_back(std::make_pair(tx_hash, std::move(tx)));
m_mempool.set_relayed(txs);
}
//-----------------------------------------------------------------------------------------------
bool core::get_block_template(block& b, const account_public_address& adr, difficulty_type& diffic, uint64_t& height, const blobdata& ex_nonce)
{
return m_blockchain_storage.create_block_template(b, adr, diffic, height, ex_nonce);
}
//-----------------------------------------------------------------------------------------------
bool core::find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const
{
return m_blockchain_storage.find_blockchain_supplement(qblock_ids, resp);
}
//-----------------------------------------------------------------------------------------------
bool core::find_blockchain_supplement(const uint64_t req_start_block, const std::list<crypto::hash>& qblock_ids, std::list<std::pair<cryptonote::blobdata, std::list<cryptonote::blobdata> > >& blocks, uint64_t& total_height, uint64_t& start_height, size_t max_count) const
{
return m_blockchain_storage.find_blockchain_supplement(req_start_block, qblock_ids, blocks, total_height, start_height, max_count);
}
//-----------------------------------------------------------------------------------------------
void core::print_blockchain(uint64_t start_index, uint64_t end_index) const
{
m_blockchain_storage.print_blockchain(start_index, end_index);
}
//-----------------------------------------------------------------------------------------------
void core::print_blockchain_index() const
{
m_blockchain_storage.print_blockchain_index();
}
//-----------------------------------------------------------------------------------------------
void core::print_blockchain_outs(const std::string& file)
{
m_blockchain_storage.print_blockchain_outs(file);
}
//-----------------------------------------------------------------------------------------------
bool core::get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const
{
return m_blockchain_storage.get_random_outs_for_amounts(req, res);
}
//-----------------------------------------------------------------------------------------------
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_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res) const
{
return m_blockchain_storage.get_random_rct_outs(req, res);
}
//-----------------------------------------------------------------------------------------------
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);
}
//-----------------------------------------------------------------------------------------------
void core::pause_mine()
{
m_miner.pause();
}
//-----------------------------------------------------------------------------------------------
void core::resume_mine()
{
m_miner.resume();
}
//-----------------------------------------------------------------------------------------------
bool core::handle_block_found(block& b)
{
block_verification_context bvc = boost::value_initialized<block_verification_context>();
m_miner.pause();
m_blockchain_storage.add_new_block(b, bvc);
//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 = boost::value_initialized<cryptonote_connection_context>();
NOTIFY_NEW_BLOCK::request arg = AUTO_VAL_INIT(arg);
arg.hop = 0;
arg.current_blockchain_height = m_blockchain_storage.get_current_blockchain_height();
std::list<crypto::hash> missed_txs;
std::list<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, "cant 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);
m_pprotocol->relay_block(arg, exclude_context);
}
return bvc.m_added_to_main_chain;
}
//-----------------------------------------------------------------------------------------------
void core::on_synchronized()
{
m_miner.on_synchronized();
}
//-----------------------------------------------------------------------------------------------
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::list<block_complete_entry> &blocks)
{
m_blockchain_storage.prepare_handle_incoming_blocks(blocks);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::cleanup_handle_incoming_blocks(bool force_sync)
{
m_blockchain_storage.cleanup_handle_incoming_blocks(force_sync);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::handle_incoming_block(const blobdata& block_blob, block_verification_context& bvc, bool update_miner_blocktemplate)
{
// 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.");
bvc = boost::value_initialized<block_verification_context>();
if(block_blob.size() > get_max_block_size())
{
LOG_PRINT_L1("WRONG BLOCK BLOB, too big size " << block_blob.size() << ", rejected");
bvc.m_verifivation_failed = true;
return false;
}
block b = AUTO_VAL_INIT(b);
if(!parse_and_validate_block_from_blob(block_blob, b))
{
LOG_PRINT_L1("Failed to parse and validate new block");
bvc.m_verifivation_failed = true;
return false;
}
add_new_block(b, bvc);
if(update_miner_blocktemplate && bvc.m_added_to_main_chain)
update_miner_block_template();
return true;
}
//-----------------------------------------------------------------------------------------------
// 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
{
if(block_blob.size() > get_max_block_size())
{
LOG_PRINT_L1("WRONG BLOCK BLOB, too big size " << block_blob.size() << ", rejected");
return false;
}
return true;
}
//-----------------------------------------------------------------------------------------------
crypto::hash core::get_tail_id() const
{
return m_blockchain_storage.get_tail_id();
}
//-----------------------------------------------------------------------------------------------
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, crypto::hash& tx_prefix_hash, const blobdata& blob) const
{
return parse_and_validate_tx_from_blob(blob, tx, tx_hash, tx_prefix_hash);
}
//-----------------------------------------------------------------------------------------------
bool core::check_tx_syntax(const transaction& tx) const
{
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transactions(std::list<transaction>& txs) const
{
m_mempool.get_transactions(txs);
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transaction(const crypto::hash &id, transaction& tx) const
{
return m_mempool.get_transaction(id, tx);
}
//-----------------------------------------------------------------------------------------------
bool core::get_pool_transactions_and_spent_keys_info(std::vector<tx_info>& tx_infos, std::vector<spent_key_image_info>& key_image_infos) const
{
return m_mempool.get_transactions_and_spent_keys_info(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)
{
MGINFO_YELLOW(ENDL << "**********************************************************************" << ENDL
<< "The daemon will start synchronizing with the network. It may take up to several hours." << 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 the list of available commands." << 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_miner.on_idle();
m_mempool.on_idle();
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::check_fork_time()
{
HardFork::State state = m_blockchain_storage.get_hard_fork_state();
const el::Level level = el::Level::Warning;
switch (state) {
case HardFork::LikelyForked:
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:
MCLOG_RED(level, "global", "**********************************************************************");
MCLOG_RED(level, "global", "Last scheduled hard fork time shows a daemon update is needed now.");
MCLOG_RED(level, "global", "**********************************************************************");
break;
default:
break;
}
return true;
}
//-----------------------------------------------------------------------------------------------
bool core::check_updates()
{
static const char software[] = "monero";
static const char subdir[] = "cli"; // because it can never be simple
#ifdef BUILD_TAG
static const char buildtag[] = BOOST_PP_STRINGIZE(BUILD_TAG);
#else
static const char buildtag[] = "source";
#endif
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)
return true;
std::string url = tools::get_update_url(software, subdir, buildtag, version, true);
MGINFO("Version " << version << " of " << software << " for " << buildtag << " is available: " << url << ", SHA256 hash " << hash);
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;
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");
if (!tools::download(path.string(), url))
{
MCERROR("updates", "Failed to download " << url);
return false;
}
if (!tools::sha256sum(path.string(), file_hash))
{
MCERROR("updates", "Failed to hash " << path);
return false;
}
if (hash != epee::string_tools::pod_to_hex(file_hash))
{
MCERROR("updates", "Download from " << url << " does not match the expected hash");
return false;
}
MGINFO("New version downloaded to " << path);
}
else
{
MCDEBUG("updates", "We already have " << path << " with expected hash");
}
if (check_updates_level == UPDATES_DOWNLOAD)
return true;
MCERROR("updates", "Download/update not implemented yet");
return true;
}
//-----------------------------------------------------------------------------------------------
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;
}
//-----------------------------------------------------------------------------------------------
std::time_t core::get_start_time() const
{
return start_time;
}
//-----------------------------------------------------------------------------------------------
void core::graceful_exit()
{
raise(SIGTERM);
}
}
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