| 1381 | } |
| 1382 | |
| 1383 | bool PeerManagerImpl::MaybePunishNodeForBlock(NodeId nodeid, const BlockValidationState& state, |
| 1384 | bool via_compact_block, const std::string& message) |
| 1385 | { |
| 1386 | switch (state.GetResult()) { |
| 1387 | case BlockValidationResult::BLOCK_RESULT_UNSET: |
| 1388 | break; |
| 1389 | // The node is providing invalid data: |
| 1390 | case BlockValidationResult::BLOCK_CONSENSUS: |
| 1391 | case BlockValidationResult::BLOCK_MUTATED: |
| 1392 | if (!via_compact_block) { |
| 1393 | Misbehaving(nodeid, 100, message); |
| 1394 | return true; |
| 1395 | } |
| 1396 | break; |
| 1397 | case BlockValidationResult::BLOCK_CACHED_INVALID: |
| 1398 | { |
| 1399 | LOCK(cs_main); |
| 1400 | CNodeState *node_state = State(nodeid); |
| 1401 | if (node_state == nullptr) { |
| 1402 | break; |
| 1403 | } |
| 1404 | |
| 1405 | // Discourage outbound (but not inbound) peers if on an invalid chain. |
| 1406 | // Exempt HB compact block peers. Manual connections are always protected from discouragement. |
| 1407 | if (!via_compact_block && !node_state->m_is_inbound) { |
| 1408 | Misbehaving(nodeid, 100, message); |
| 1409 | return true; |
| 1410 | } |
| 1411 | break; |
| 1412 | } |
| 1413 | case BlockValidationResult::BLOCK_INVALID_HEADER: |
| 1414 | case BlockValidationResult::BLOCK_CHECKPOINT: |
| 1415 | case BlockValidationResult::BLOCK_INVALID_PREV: |
| 1416 | Misbehaving(nodeid, 100, message); |
| 1417 | return true; |
| 1418 | // Conflicting (but not necessarily invalid) data or different policy: |
| 1419 | case BlockValidationResult::BLOCK_MISSING_PREV: |
| 1420 | // TODO: Handle this much more gracefully (10 DoS points is super arbitrary) |
| 1421 | Misbehaving(nodeid, 10, message); |
| 1422 | return true; |
| 1423 | case BlockValidationResult::BLOCK_RECENT_CONSENSUS_CHANGE: |
| 1424 | case BlockValidationResult::BLOCK_TIME_FUTURE: |
| 1425 | break; |
| 1426 | } |
| 1427 | if (message != "") { |
| 1428 | LogPrint(BCLog::NET, "peer=%d: %s\n", nodeid, message); |
| 1429 | } |
| 1430 | return false; |
| 1431 | } |
| 1432 | |
| 1433 | bool PeerManagerImpl::BlockRequestAllowed(const CBlockIndex* pindex) |
| 1434 | { |