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Merge bitcoin/bitcoin#25591: move-only: Version handshake to libtest_util

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fa4be8e7c3 move-only: InitializeNode to handshake helper (MacroFake)
fa7098947c move-only: Version handshake to libtest_util (MacroFake)

Pull request description:

  The version handshake after setting up a peer is an integral part of (unit) testing net processing logic.

  Thus, make the helper accessible in libtest_util.

  Also, remove the peerman argument from `FillNode`, as it must be equal to connman's peerman, which can then be used instead.

ACKs for top commit:
  dergoegge:
    ACK fa4be8e7c3

Tree-SHA512: 8296399dc2c29196bd56584c9b61f1c5a088f96dd3438b07b84e1acf525d867f1e37fdfdeede8a831add25848cda0c221ce3fb873e5ae5ca805a1765aa08eb12
This commit is contained in:
MacroFake 2022-07-12 17:05:37 +02:00
commit dd13d7bf16
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GPG key ID: CE2B75697E69A548
6 changed files with 75 additions and 55 deletions
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3
src/test/fuzz/process_message.cpp
View file

@ -80,8 +80,7 @@ void fuzz_target(FuzzBufferType buffer, const std::string& LIMIT_TO_MESSAGE_TYPE
CNode& p2p_node = *ConsumeNodeAsUniquePtr(fuzzed_data_provider).release();
connman.AddTestNode(p2p_node);
g_setup->m_node.peerman->InitializeNode(&p2p_node);
FillNode(fuzzed_data_provider, connman, *g_setup->m_node.peerman, p2p_node);
FillNode(fuzzed_data_provider, connman, p2p_node);
const auto mock_time = ConsumeTime(fuzzed_data_provider);
SetMockTime(mock_time);

3
src/test/fuzz/process_messages.cpp
View file

@ -46,8 +46,7 @@ FUZZ_TARGET_INIT(process_messages, initialize_process_messages)
peers.push_back(ConsumeNodeAsUniquePtr(fuzzed_data_provider, i).release());
CNode& p2p_node = *peers.back();
g_setup->m_node.peerman->InitializeNode(&p2p_node);
FillNode(fuzzed_data_provider, connman, *g_setup->m_node.peerman, p2p_node);
FillNode(fuzzed_data_provider, connman, p2p_node);
connman.AddTestNode(p2p_node);
}

57
src/test/fuzz/util.cpp
View file

@ -289,57 +289,14 @@ bool FuzzedSock::IsConnected(std::string& errmsg) const
return false;
}
void FillNode(FuzzedDataProvider& fuzzed_data_provider, ConnmanTestMsg& connman, PeerManager& peerman, CNode& node) noexcept
void FillNode(FuzzedDataProvider& fuzzed_data_provider, ConnmanTestMsg& connman, CNode& node) noexcept
{
const bool successfully_connected{fuzzed_data_provider.ConsumeBool()};
const ServiceFlags remote_services = ConsumeWeakEnum(fuzzed_data_provider, ALL_SERVICE_FLAGS);
const NetPermissionFlags permission_flags = ConsumeWeakEnum(fuzzed_data_provider, ALL_NET_PERMISSION_FLAGS);
const int32_t version = fuzzed_data_provider.ConsumeIntegralInRange<int32_t>(MIN_PEER_PROTO_VERSION, std::numeric_limits<int32_t>::max());
const bool relay_txs{fuzzed_data_provider.ConsumeBool()};
const CNetMsgMaker mm{0};
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));
assert(node.nServices == remote_services);
CNodeStateStats statestats;
assert(peerman.GetNodeStateStats(node.GetId(), statestats));
assert(statestats.m_relay_txs == (relay_txs && !node.IsBlockOnlyConn()));
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);
}
connman.Handshake(node,
/*successfully_connected=*/fuzzed_data_provider.ConsumeBool(),
/*remote_services=*/ConsumeWeakEnum(fuzzed_data_provider, ALL_SERVICE_FLAGS),
/*permission_flags=*/ConsumeWeakEnum(fuzzed_data_provider, ALL_NET_PERMISSION_FLAGS),
/*version=*/fuzzed_data_provider.ConsumeIntegralInRange<int32_t>(MIN_PEER_PROTO_VERSION, std::numeric_limits<int32_t>::max()),
/*relay_txs=*/fuzzed_data_provider.ConsumeBool());
}
CAmount ConsumeMoney(FuzzedDataProvider& fuzzed_data_provider, const std::optional<CAmount>& max) noexcept

2
src/test/fuzz/util.h
View file

@ -331,7 +331,7 @@ auto ConsumeNode(FuzzedDataProvider& fuzzed_data_provider, const std::optional<N
}
inline std::unique_ptr<CNode> ConsumeNodeAsUniquePtr(FuzzedDataProvider& fdp, const std::optional<NodeId>& node_id_in = std::nullopt) { return ConsumeNode<true>(fdp, node_id_in); }
void FillNode(FuzzedDataProvider& fuzzed_data_provider, ConnmanTestMsg& connman, PeerManager& peerman, CNode& node) noexcept;
void FillNode(FuzzedDataProvider& fuzzed_data_provider, ConnmanTestMsg& connman, CNode& node) noexcept;
class FuzzedFileProvider
{

58
src/test/util/net.cpp
View file

@ -7,10 +7,68 @@
#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,
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);
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));
assert(node.nServices == remote_services);
CNodeStateStats statestats;
assert(peerman.GetNodeStateStats(node.GetId(), statestats));
assert(statestats.m_relay_txs == (relay_txs && !node.IsBlockOnlyConn()));
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));

7
src/test/util/net.h
View file

@ -39,6 +39,13 @@ struct ConnmanTestMsg : public CConnman {
m_nodes.clear();
}
void Handshake(CNode& node,
bool successfully_connected,
ServiceFlags remote_services,
NetPermissionFlags permission_flags,
int32_t version,
bool relay_txs);
void ProcessMessagesOnce(CNode& node) { m_msgproc->ProcessMessages(&node, flagInterruptMsgProc); }
void NodeReceiveMsgBytes(CNode& node, Span<const uint8_t> msg_bytes, bool& complete) const;