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protocol: drop peers which repeatedly don't reply to chain requests

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also fix idle peer detection time not being always set
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moneromooo 2020-10-28 14:23:10 +00:00 • committed by wowario
parent 4cc5e174d9
commit c79c1d14cc
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GPG key ID: 24DCBE762DE9C111
1 changed files with 28 additions and 7 deletions
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23
src/cryptonote_protocol/cryptonote_protocol_handler.inl
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@ -68,7 +68,7 @@
#define BLOCK_QUEUE_FORCE_DOWNLOAD_NEAR_BLOCKS 1000
#define REQUEST_NEXT_SCHEDULED_SPAN_THRESHOLD_STANDBY (5 * 1000000) // microseconds
#define REQUEST_NEXT_SCHEDULED_SPAN_THRESHOLD (30 * 1000000) // microseconds
#define IDLE_PEER_KICK_TIME (600 * 1000000) // microseconds
#define IDLE_PEER_KICK_TIME (240 * 1000000) // microseconds
#define PASSIVE_PEER_KICK_TIME (60 * 1000000) // microseconds
#define DROP_ON_SYNC_WEDGE_THRESHOLD (30 * 1000000000ull) // nanoseconds
#define LAST_ACTIVITY_STALL_THRESHOLD (2.0f) // seconds
@ -142,6 +142,7 @@ namespace cryptonote
m_core.get_short_chain_history(r.block_ids);
handler_request_blocks_history( r.block_ids ); // change the limit(?), sleep(?)
r.prune = m_sync_pruned_blocks;
context.m_last_request_time = boost::posix_time::microsec_clock::universal_time();
MLOG_P2P_MESSAGE("-->>NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << r.block_ids.size() );
post_notify<NOTIFY_REQUEST_CHAIN>(r, context);
MLOG_PEER_STATE("requesting chain");
@ -487,6 +488,7 @@ namespace cryptonote
m_core.get_short_chain_history(r.block_ids);
r.prune = m_sync_pruned_blocks;
handler_request_blocks_history( r.block_ids ); // change the limit(?), sleep(?)
context.m_last_request_time = boost::posix_time::microsec_clock::universal_time();
MLOG_P2P_MESSAGE("-->>NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << r.block_ids.size() );
post_notify<NOTIFY_REQUEST_CHAIN>(r, context);
MLOG_PEER_STATE("requesting chain");
@ -765,6 +767,7 @@ namespace cryptonote
m_core.get_short_chain_history(r.block_ids);
handler_request_blocks_history( r.block_ids ); // change the limit(?), sleep(?)
r.prune = m_sync_pruned_blocks;
context.m_last_request_time = boost::posix_time::microsec_clock::universal_time();
MLOG_P2P_MESSAGE("-->>NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << r.block_ids.size() );
post_notify<NOTIFY_REQUEST_CHAIN>(r, context);
MLOG_PEER_STATE("requesting chain");
@ -1029,6 +1032,7 @@ namespace cryptonote
drop_connection(context, false, false);
return 1;
}
context.m_last_request_time = boost::posix_time::microsec_clock::universal_time();
MLOG_P2P_MESSAGE("-->>NOTIFY_RESPONSE_GET_OBJECTS: blocks.size()="
<< rsp.blocks.size() << ", rsp.m_current_blockchain_height=" << rsp.current_blockchain_height
<< ", missed_ids.size()=" << rsp.missed_ids.size());
@ -1659,6 +1663,7 @@ skip:
bool t_cryptonote_protocol_handler<t_core>::kick_idle_peers()
{
MTRACE("Checking for idle peers...");
std::vector<boost::uuids::uuid> idle_peers;
m_p2p->for_each_connection([&](cryptonote_connection_context& context, nodetool::peerid_type peer_id, uint32_t support_flags)->bool
{
if (context.m_state == cryptonote_connection_context::state_synchronizing && context.m_last_request_time != boost::date_time::not_a_date_time)
@ -1666,6 +1671,8 @@ skip:
const boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();
const boost::posix_time::time_duration dt = now - context.m_last_request_time;
if (dt.total_microseconds() > IDLE_PEER_KICK_TIME)
{
if (context.m_score-- >= 0)
{
MINFO(context << " kicking idle peer, last update " << (dt.total_microseconds() / 1.e6) << " seconds ago");
LOG_PRINT_CCONTEXT_L2("requesting callback");
@ -1674,9 +1681,23 @@ skip:
++context.m_callback_request_count;
m_p2p->request_callback(context);
}
else
{
idle_peers.push_back(context.m_connection_id);
}
}
}
return true;
});
for (const auto &uuid: idle_peers)
{
if (!m_p2p->for_connection(uuid, [&](cryptonote_connection_context& ctx, nodetool::peerid_type peer_id, uint32_t f)->bool{
MINFO(ctx << "dropping idle peer with negative score");
drop_connection(ctx, true, false);
return true;
}))
MDEBUG("Failed to find peer we wanted to drop");
}
return true;
}
//------------------------------------------------------------------------------------------------------------------------