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// Copyright (c) 2020-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <test/util/net.h>
#include <chainparams.h>
#include <node/eviction.h>
#include <net.h>
#include <net_processing.h>
#include <netmessagemaker.h>
#include <span.h>
#include <vector>
void ConnmanTestMsg::Handshake(CNode& node,
bool successfully_connected,
ServiceFlags remote_services,
ServiceFlags local_services,
NetPermissionFlags permission_flags,
int32_t version,
bool relay_txs)
{
auto& peerman{static_cast<PeerManager&>(*m_msgproc)};
auto& connman{*this};
const CNetMsgMaker mm{0};
peerman.InitializeNode(node, local_services);
CSerializedNetMsg msg_version{
mm.Make(NetMsgType::VERSION,
version, //
Using<CustomUintFormatter<8>>(remote_services), //
int64_t{}, // dummy time
int64_t{}, // ignored service bits
CService{}, // dummy
int64_t{}, // ignored service bits
CService{}, // ignored
uint64_t{1}, // dummy nonce
std::string{}, // dummy subver
int32_t{}, // dummy starting_height
relay_txs),
};
(void)connman.ReceiveMsgFrom(node, msg_version);
node.fPauseSend = false;
connman.ProcessMessagesOnce(node);
{
LOCK(node.cs_sendProcessing);
peerman.SendMessages(&node);
}
if (node.fDisconnect) return;
assert(node.nVersion == version);
assert(node.GetCommonVersion() == std::min(version, PROTOCOL_VERSION));
CNodeStateStats statestats;
assert(peerman.GetNodeStateStats(node.GetId(), statestats));
assert(statestats.m_relay_txs == (relay_txs && !node.IsBlockOnlyConn()));
assert(statestats.their_services == remote_services);
node.m_permissionFlags = permission_flags;
if (successfully_connected) {
CSerializedNetMsg msg_verack{mm.Make(NetMsgType::VERACK)};
(void)connman.ReceiveMsgFrom(node, msg_verack);
node.fPauseSend = false;
connman.ProcessMessagesOnce(node);
{
LOCK(node.cs_sendProcessing);
peerman.SendMessages(&node);
}
assert(node.fSuccessfullyConnected == true);
}
}
void ConnmanTestMsg::NodeReceiveMsgBytes(CNode& node, Span<const uint8_t> msg_bytes, bool& complete) const
{
assert(node.ReceiveMsgBytes(msg_bytes, complete));
if (complete) {
size_t nSizeAdded = 0;
auto it(node.vRecvMsg.begin());
for (; it != node.vRecvMsg.end(); ++it) {
// vRecvMsg contains only completed CNetMessage
// the single possible partially deserialized message are held by TransportDeserializer
nSizeAdded += it->m_raw_message_size;
}
{
LOCK(node.cs_vProcessMsg);
node.vProcessMsg.splice(node.vProcessMsg.end(), node.vRecvMsg, node.vRecvMsg.begin(), it);
node.nProcessQueueSize += nSizeAdded;
node.fPauseRecv = node.nProcessQueueSize > nReceiveFloodSize;
}
}
}
bool ConnmanTestMsg::ReceiveMsgFrom(CNode& node, CSerializedNetMsg& ser_msg) const
{
std::vector<uint8_t> ser_msg_header;
node.m_serializer->prepareForTransport(ser_msg, ser_msg_header);
bool complete;
NodeReceiveMsgBytes(node, ser_msg_header, complete);
NodeReceiveMsgBytes(node, ser_msg.data, complete);
return complete;
}
std::vector<NodeEvictionCandidate> GetRandomNodeEvictionCandidates(int n_candidates, FastRandomContext& random_context)
{
std::vector<NodeEvictionCandidate> candidates;
for (int id = 0; id < n_candidates; ++id) {
candidates.push_back({
/*id=*/id,
/*m_connected=*/std::chrono::seconds{random_context.randrange(100)},
/*m_min_ping_time=*/std::chrono::microseconds{random_context.randrange(100)},
/*m_last_block_time=*/std::chrono::seconds{random_context.randrange(100)},
/*m_last_tx_time=*/std::chrono::seconds{random_context.randrange(100)},
/*fRelevantServices=*/random_context.randbool(),
/*m_relay_txs=*/random_context.randbool(),
/*fBloomFilter=*/random_context.randbool(),
/*nKeyedNetGroup=*/random_context.randrange(100),
/*prefer_evict=*/random_context.randbool(),
/*m_is_local=*/random_context.randbool(),
/*m_network=*/ALL_NETWORKS[random_context.randrange(ALL_NETWORKS.size())],
/*m_noban=*/false,
/*m_conn_type=*/ConnectionType::INBOUND,
});
}
return candidates;
}
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