diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptonote_core/cryptonote_core.cpp | 31 | ||||
| -rw-r--r-- | src/cryptonote_core/cryptonote_core.h | 2 |
2 files changed, 33 insertions, 0 deletions
diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp index bc01e2435..62efabf63 100644 --- a/src/cryptonote_core/cryptonote_core.cpp +++ b/src/cryptonote_core/cryptonote_core.cpp @@ -192,6 +192,18 @@ namespace cryptonote "replaced by the number of new blocks in the new 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." + , "" + }; //----------------------------------------------------------------------------------------------- core::core(i_cryptonote_protocol* pprotocol): @@ -308,6 +320,7 @@ namespace cryptonote 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); miner::init_options(desc); BlockchainDB::init_options(desc); @@ -600,6 +613,16 @@ namespace cryptonote MERROR("Failed to parse reorg notify spec"); } + 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(Blockchain::get_hard_fork_heights(MAINNET).back().version, 1), std::make_pair(0, 0)}; const cryptonote::test_options regtest_test_options = { regtest_hard_forks, @@ -1776,6 +1799,14 @@ namespace cryptonote if (p < threshold) { MWARNING("There were " << b << " 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 } } diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h index 308924bb9..79d06662e 100644 --- a/src/cryptonote_core/cryptonote_core.h +++ b/src/cryptonote_core/cryptonote_core.h @@ -1062,6 +1062,8 @@ namespace cryptonote bool m_fluffy_blocks_enabled; bool m_offline; bool m_pad_transactions; + + std::shared_ptr<tools::Notify> m_block_rate_notify; }; } |