diff options
Diffstat (limited to 'src/cryptonote_protocol')
| -rw-r--r-- | src/cryptonote_protocol/cryptonote_protocol_handler.inl | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/src/cryptonote_protocol/cryptonote_protocol_handler.inl b/src/cryptonote_protocol/cryptonote_protocol_handler.inl index e2598e382..5874c7570 100644 --- a/src/cryptonote_protocol/cryptonote_protocol_handler.inl +++ b/src/cryptonote_protocol/cryptonote_protocol_handler.inl @@ -2298,30 +2298,16 @@ skip: return true; } - // if we're still around, we might be at a point where the peer is pruned, so we could either - // drop it to make space for other peers, or ask for a span further down the line - const uint32_t next_stripe = get_next_needed_pruning_stripe().first; - const uint32_t peer_stripe = tools::get_pruning_stripe(context.m_pruning_seed); - const uint32_t local_stripe = tools::get_pruning_stripe(m_core.get_blockchain_pruning_seed()); - if (!(m_sync_pruned_blocks && peer_stripe == local_stripe) && next_stripe && peer_stripe && next_stripe != peer_stripe) + // we can do nothing, so drop this peer to make room for others unless we think we've downloaded all we need + const uint64_t blockchain_height = m_core.get_current_blockchain_height(); + if (std::max(blockchain_height, m_block_queue.get_next_needed_height(blockchain_height)) >= m_core.get_target_blockchain_height()) { - // at this point, we have to either close the connection, or start getting blocks past the - // current point, or become dormant - MDEBUG(context << "this peer is pruned at seed " << epee::string_tools::to_string_hex(context.m_pruning_seed) << - ", next stripe needed is " << next_stripe); - if (!context.m_is_income) - { - if (should_drop_connection(context, next_stripe)) - { - m_p2p->add_used_stripe_peer(context); - return false; // drop outgoing connections - } - } - // we'll get back stuck waiting for the go ahead context.m_state = cryptonote_connection_context::state_normal; MLOG_PEER_STATE("Nothing to do for now, switching to normal state"); return true; } + MLOG_PEER_STATE("We can download nothing from this peer, dropping"); + return false; } skip: @@ -2562,6 +2548,8 @@ skip: } std::unordered_set<crypto::hash> hashes; + uint64_t height = arg.start_height; + const uint64_t blockchain_height = m_core.get_current_blockchain_height(); for (const auto &h: arg.m_block_ids) { if (!hashes.insert(h).second) @@ -2570,6 +2558,17 @@ skip: drop_connection(context, true, false); return 1; } + if (height < blockchain_height) + { + const crypto::hash block_in_chain = m_core.get_block_id_by_height(height); + if ((height < context.m_expect_height - 1 && block_in_chain == h) || (height == context.m_expect_height - 1 && block_in_chain != h)) + { + LOG_ERROR_CCONTEXT("sent existing block " << h << " at height " << height << ", expected height was " << context.m_expect_height << ", dropping connection"); + drop_connection(context, true, false); + return 1; + } + } + ++height; } uint64_t n_use_blocks = m_core.prevalidate_block_hashes(arg.start_height, arg.m_block_ids, arg.m_block_weights); |