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Merge #20210: net: assert CNode::m_inbound_onion is inbound in ctor, add getter, unit tests

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86c495223f net: add CNode::IsInboundOnion() public getter and unit tests (Jon Atack)
6609eb8cb5 net: assert CNode::m_inbound_onion is inbound in ctor (Jon Atack)
993d1ecd19 test, fuzz: fix constructing CNode with invalid inbound_onion (Jon Atack)

Pull request description:

  The goal of this PR is to be able to depend on `m_inbound_onion` in AttemptToEvictConnection in #20197:

  - asserts `CNode::m_inbound_onion` is inbound in the CNode ctor to have a validity check at the class boundary
  - fixes a unit test and a fuzz utility that were passing invalid inbound onion values to the CNode ctor
  - drops an unneeded check in `CNode::ConnectedThroughNetwork()` for its inbound status
  - adds a public getter `IsInboundOnion()` that also allows unit testing it
  - adds unit test coverage

ACKs for top commit:
  sipa:
    utACK 86c495223f
  LarryRuane:
    ACK 86c495223f
  vasild:
    ACK 86c495223f
  MarcoFalke:
    review ACK 86c495223f 🐍

Tree-SHA512: 21109105bc4e5e03076fadd489204be00eac710c9de0127708ca2d0a10a048ff81f640f589a7429967ac3eb51d35fe24bb2b12e53e7aa3efbc47aaff6396d204
This commit is contained in:
MarcoFalke 2021-01-02 09:53:53 +01:00
commit ae8f797135
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GPG key ID: D2EA4850E7528B25
4 changed files with 12 additions and 4 deletions
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3
src/net.cpp
View file

@ -555,7 +555,7 @@ void CNode::SetAddrLocal(const CService& addrLocalIn) {
Network CNode::ConnectedThroughNetwork() const
{
return IsInboundConn() && m_inbound_onion ? NET_ONION : addr.GetNetClass();
return m_inbound_onion ? NET_ONION : addr.GetNetClass();
}
#undef X
@ -2947,6 +2947,7 @@ CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn
nMyStartingHeight(nMyStartingHeightIn),
m_inbound_onion(inbound_onion)
{
if (inbound_onion) assert(conn_type_in == ConnectionType::INBOUND);
hSocket = hSocketIn;
addrName = addrNameIn == "" ? addr.ToStringIPPort() : addrNameIn;
if (conn_type_in != ConnectionType::BLOCK_RELAY) {

5
src/net.h
View file

@ -1095,7 +1095,7 @@ private:
CService addrLocal GUARDED_BY(cs_addrLocal);
mutable RecursiveMutex cs_addrLocal;
//! Whether this peer connected via our Tor onion service.
//! Whether this peer is an inbound onion, e.g. connected via our Tor onion service.
const bool m_inbound_onion{false};
public:
@ -1219,6 +1219,9 @@ public:
void MaybeSetAddrName(const std::string& addrNameIn);
std::string ConnectionTypeAsString() const;
/** Whether this peer is an inbound onion, e.g. connected via our Tor onion service. */
bool IsInboundOnion() const { return m_inbound_onion; }
};
/** Return a timestamp in the future (in microseconds) for exponentially distributed events. */

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

@ -298,7 +298,7 @@ inline CNode ConsumeNode(FuzzedDataProvider& fuzzed_data_provider) noexcept
const CAddress addr_bind = ConsumeAddress(fuzzed_data_provider);
const std::string addr_name = fuzzed_data_provider.ConsumeRandomLengthString(64);
const ConnectionType conn_type = fuzzed_data_provider.PickValueInArray({ConnectionType::INBOUND, ConnectionType::OUTBOUND_FULL_RELAY, ConnectionType::MANUAL, ConnectionType::FEELER, ConnectionType::BLOCK_RELAY, ConnectionType::ADDR_FETCH});
const bool inbound_onion = fuzzed_data_provider.ConsumeBool();
const bool inbound_onion{conn_type == ConnectionType::INBOUND ? fuzzed_data_provider.ConsumeBool() : false};
return {node_id, local_services, my_starting_height, socket, address, keyed_net_group, local_host_nonce, addr_bind, addr_name, conn_type, inbound_onion};
}

6
src/test/net_tests.cpp
View file

@ -200,6 +200,7 @@ BOOST_AUTO_TEST_CASE(cnode_simple_test)
BOOST_CHECK(pnode1->IsFeelerConn() == false);
BOOST_CHECK(pnode1->IsAddrFetchConn() == false);
BOOST_CHECK(pnode1->IsInboundConn() == false);
BOOST_CHECK(pnode1->IsInboundOnion() == false);
BOOST_CHECK_EQUAL(pnode1->ConnectedThroughNetwork(), Network::NET_IPV4);
std::unique_ptr<CNode> pnode2 = MakeUnique<CNode>(
@ -214,6 +215,7 @@ BOOST_AUTO_TEST_CASE(cnode_simple_test)
BOOST_CHECK(pnode2->IsFeelerConn() == false);
BOOST_CHECK(pnode2->IsAddrFetchConn() == false);
BOOST_CHECK(pnode2->IsInboundConn() == true);
BOOST_CHECK(pnode2->IsInboundOnion() == false);
BOOST_CHECK_EQUAL(pnode2->ConnectedThroughNetwork(), Network::NET_IPV4);
std::unique_ptr<CNode> pnode3 = MakeUnique<CNode>(
@ -221,13 +223,14 @@ BOOST_AUTO_TEST_CASE(cnode_simple_test)
/* nKeyedNetGroupIn = */ 0,
/* nLocalHostNonceIn = */ 0,
CAddress(), pszDest, ConnectionType::OUTBOUND_FULL_RELAY,
/* inbound_onion = */ true);
/* inbound_onion = */ false);
BOOST_CHECK(pnode3->IsFullOutboundConn() == true);
BOOST_CHECK(pnode3->IsManualConn() == false);
BOOST_CHECK(pnode3->IsBlockOnlyConn() == false);
BOOST_CHECK(pnode3->IsFeelerConn() == false);
BOOST_CHECK(pnode3->IsAddrFetchConn() == false);
BOOST_CHECK(pnode3->IsInboundConn() == false);
BOOST_CHECK(pnode3->IsInboundOnion() == false);
BOOST_CHECK_EQUAL(pnode3->ConnectedThroughNetwork(), Network::NET_IPV4);
std::unique_ptr<CNode> pnode4 = MakeUnique<CNode>(
@ -242,6 +245,7 @@ BOOST_AUTO_TEST_CASE(cnode_simple_test)
BOOST_CHECK(pnode4->IsFeelerConn() == false);
BOOST_CHECK(pnode4->IsAddrFetchConn() == false);
BOOST_CHECK(pnode4->IsInboundConn() == true);
BOOST_CHECK(pnode4->IsInboundOnion() == true);
BOOST_CHECK_EQUAL(pnode4->ConnectedThroughNetwork(), Network::NET_ONION);
}