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protocol: drop peers that decrease claimed height

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moneromooo 2020-12-01 22:18:53 +00:00 committed by moneromooo-monero
parent 1382b17aa1
commit fa79148e0c
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1 changed files with 16 additions and 1 deletions
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17
src/cryptonote_protocol/cryptonote_protocol_handler.inl
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@ -328,6 +328,11 @@ namespace cryptonote
}
}
if (hshd.current_height < context.m_remote_blockchain_height)
{
MINFO(context << "Claims " << hshd.current_height << ", claimed " << context.m_remote_blockchain_height << " before");
hit_score(context, 1);
}
context.m_remote_blockchain_height = hshd.current_height;
context.m_pruning_seed = hshd.pruning_seed;
#ifdef CRYPTONOTE_PRUNING_DEBUG_SPOOF_SEED
@ -1112,6 +1117,11 @@ namespace cryptonote
return 1;
}
if (arg.current_blockchain_height < context.m_remote_blockchain_height)
{
MINFO(context << "Claims " << arg.current_blockchain_height << ", claimed " << context.m_remote_blockchain_height << " before");
hit_score(context, 1);
}
context.m_remote_blockchain_height = arg.current_blockchain_height;
if (context.m_remote_blockchain_height > m_core.get_target_blockchain_height())
m_core.set_target_blockchain_height(context.m_remote_blockchain_height);
@ -2345,7 +2355,7 @@ skip:
}
else
{
MINFO(context << " we've reached this peer's blockchain height");
MINFO(context << " we've reached this peer's blockchain height (theirs " << context.m_remote_blockchain_height << ", our target " << m_core.get_target_blockchain_height());
}
}
return true;
@ -2472,6 +2482,11 @@ skip:
drop_connection(context, false, false);
return 1;
}
if (arg.total_height < context.m_remote_blockchain_height)
{
MINFO(context << "Claims " << arg.total_height << ", claimed " << context.m_remote_blockchain_height << " before");
hit_score(context, 1);
}
context.m_remote_blockchain_height = arg.total_height;
context.m_last_response_height = arg.start_height + arg.m_block_ids.size()-1;
if(context.m_last_response_height > context.m_remote_blockchain_height)