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Merge #20747: net processing: Remove dropmessagestest

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176325a5a47befe32d480b3dc206dd0e64e04b21 [net processing] Remove dropmessagestest (John Newbery)

Pull request description:

  -dropmessagestest is a command line option that causes 1 in n received
  messages to be dropped. The Bitcoin P2P protocol is stateful and in
  general cannot handle messages being dropped. Dropped
  version/verack/ping/pong messages will cause the connection to time out
  and be torn down. Other dropped messages may also cause the peer to
  believe that the peer has stalled and tear down the connection.

  It seems difficult to uncover any actual issues with -dropmessagestest,
  and any coverage that could be generated would probably be easier to
  trigger with fuzz testing.

ACKs for top commit:
  MarcoFalke:
    cr ACK 176325a5a47befe32d480b3dc206dd0e64e04b21
  practicalswift:
    cr ACK 176325a5a47befe32d480b3dc206dd0e64e04b21
  dhruv:
    cr ACK 176325a
  amitiuttarwar:
    ACK 176325a5a47befe32d480b3dc206dd0e64e04b21

Tree-SHA512: bd582e5e8c9eb272a5d8ec01ff07c36c0033fbb84c30d1c72c87a7a6c7290021dcaf7bf549179a8b95aeb4f7243158d5593bc7fcf1ec16213782e470fe36bb89
This commit is contained in:
fanquake 2020-12-24 09:18:07 +08:00 committed by PastaPastaPasta
parent a365ed03c0
commit c32857c05b
2 changed files with 0 additions and 6 deletions
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1
src/init.cpp
View File

@ -710,7 +710,6 @@ void SetupServerArgs(NodeContext& node)
argsman.AddArg("-checkmempool=<n>", strprintf("Run checks every <n> transactions (default: %u, regtest: %u)", defaultChainParams->DefaultConsistencyChecks(), regtestChainParams->DefaultConsistencyChecks()), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-checkpoints", strprintf("Enable rejection of any forks from the known historical chain until block 1450000 (default: %u)", DEFAULT_CHECKPOINTS_ENABLED), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-deprecatedrpc=<method>", "Allows deprecated RPC method(s) to be used", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-dropmessagestest=<n>", "Randomly drop 1 of every <n> network messages", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-limitancestorcount=<n>", strprintf("Do not accept transactions if number of in-mempool ancestors is <n> or more (default: %u)", DEFAULT_ANCESTOR_LIMIT), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-limitancestorsize=<n>", strprintf("Do not accept transactions whose size with all in-mempool ancestors exceeds <n> kilobytes (default: %u)", DEFAULT_ANCESTOR_SIZE_LIMIT), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-limitdescendantcount=<n>", strprintf("Do not accept transactions if any ancestor would have <n> or more in-mempool descendants (default: %u)", DEFAULT_DESCENDANT_LIMIT), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);

5
src/net_processing.cpp
View File

@ -2791,11 +2791,6 @@ void PeerManagerImpl::ProcessMessage(
LogPrint(BCLog::NET, "received: %s (%u bytes) peer=%d\n", SanitizeString(msg_type), vRecv.size(), pfrom.GetId());
statsClient.inc("message.received." + SanitizeString(msg_type), 1.0f);
if (gArgs.IsArgSet("-dropmessagestest") && GetRand(gArgs.GetArg("-dropmessagestest", 0)) == 0)
{
LogPrintf("dropmessagestest DROPPING RECV MESSAGE\n");
return;
}
PeerRef peer = GetPeerRef(pfrom.GetId());
if (peer == nullptr) return;