fuzz: net permission flags in net processing

1 files changed, 18 insertions, 1 deletions

diff --git a/src/test/fuzz/util.h b/src/test/fuzz/util.h
index 94c691936e..4e8e501895 100644
--- a/src/test/fuzz/util.h
+++ b/src/test/fuzz/util.h
@@ -296,7 +296,7 @@ inline CAddress ConsumeAddress(FuzzedDataProvider& fuzzed_data_provider) noexcep
 }
 
 template <bool ReturnUniquePtr = false>
-auto ConsumeNode(FuzzedDataProvider& fuzzed_data_provider, const std::optional<NodeId>& node_id_in = nullopt) noexcept
+auto ConsumeNode(FuzzedDataProvider& fuzzed_data_provider, const std::optional<NodeId>& node_id_in = std::nullopt) noexcept
 {
     const NodeId node_id = node_id_in.value_or(fuzzed_data_provider.ConsumeIntegral<NodeId>());
     const ServiceFlags local_services = ConsumeWeakEnum(fuzzed_data_provider, ALL_SERVICE_FLAGS);
@@ -316,6 +316,23 @@ 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 = nullopt) { return ConsumeNode<true>(fdp, node_id_in); }
 
+inline void FillNode(FuzzedDataProvider& fuzzed_data_provider, CNode& node, const std::optional<int32_t>& version_in = std::nullopt) noexcept
+{
+    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 = version_in.value_or(fuzzed_data_provider.ConsumeIntegral<int32_t>());
+    const bool filter_txs = fuzzed_data_provider.ConsumeBool();
+
+    node.nServices = remote_services;
+    node.m_permissionFlags = permission_flags;
+    node.nVersion = version;
+    node.SetCommonVersion(version);
+    if (node.m_tx_relay != nullptr) {
+        LOCK(node.m_tx_relay->cs_filter);
+        node.m_tx_relay->fRelayTxes = filter_txs;
+    }
+}
+
 inline void InitializeFuzzingContext(const std::string& chain_name = CBaseChainParams::REGTEST)
 {
     static const BasicTestingSetup basic_testing_setup{chain_name, {"-nodebuglogfile"}};