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Disallow open block for 0 (burning) account

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SergiySW 2017-10-22 01:27:27 +03:00
commit 3ad1f7e29d
3 changed files with 23 additions and 11 deletions
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7
rai/node/node.cpp
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@ -1280,6 +1280,13 @@ rai::process_return rai::block_processor::process_receive_one (MDB_txn * transac
BOOST_LOG (node.log) << boost::str (boost::format ("Account mismatch for: %1%") % block_a->hash ().to_string ());
}
}
case rai::process_result::fork_burning:
{
if (node.config.logging.ledger_logging ())
{
BOOST_LOG (node.log) << boost::str (boost::format ("Fork of burning 0 account for: %1%") % block_a->hash ().to_string ());
}
}
}
return result;
}

24
rai/secure.cpp
View file

@ -3360,16 +3360,20 @@ void ledger_processor::open_block (rai::open_block const & block_a)
result.code = ledger.store.pending_get (transaction, key, pending) ? rai::process_result::unreceivable : rai::process_result::progress; // Has this source already been received (Malformed)
if (result.code == rai::process_result::progress)
{
rai::account_info source_info;
auto error (ledger.store.account_get (transaction, pending.source, source_info));
assert (!error);
ledger.store.pending_del (transaction, key);
ledger.store.block_put (transaction, hash, block_a);
ledger.change_latest (transaction, block_a.hashables.account, hash, hash, pending.amount.number (), info.block_count + 1);
ledger.store.representation_add (transaction, hash, pending.amount.number ());
ledger.store.frontier_put (transaction, hash, block_a.hashables.account);
result.account = block_a.hashables.account;
result.amount = pending.amount;
result.code = block_a.hashables.account.is_zero () ? rai::process_result::fork_burning : rai::process_result::progress; // Is it burning 0 account? (Malicious)
if (result.code == rai::process_result::progress)
{
rai::account_info source_info;
auto error (ledger.store.account_get (transaction, pending.source, source_info));
assert (!error);
ledger.store.pending_del (transaction, key);
ledger.store.block_put (transaction, hash, block_a);
ledger.change_latest (transaction, block_a.hashables.account, hash, hash, pending.amount.number (), info.block_count + 1);
ledger.store.representation_add (transaction, hash, pending.amount.number ());
ledger.store.frontier_put (transaction, hash, block_a.hashables.account);
result.account = block_a.hashables.account;
result.amount = pending.amount;
}
}
}
}

3
rai/secure.hpp
View file

@ -490,7 +490,8 @@ enum class process_result
gap_previous, // Block marked as previous is unknown
gap_source, // Block marked as source is unknown
not_receive_from_send, // Receive does not have a send source
account_mismatch // Account number in open block doesn't match send destination
account_mismatch, // Account number in open block doesn't match send destination
fork_burning // Malicious fork based on spending of burned amount
};
class process_return
{