doc, test: Test and explain service flag handling

Service flags are handled differently, depending on whether
validated (if received from the peer) or unvalidated (received
via gossip relay).
This commit is contained in:
Martin Zumsande
2024-01-09 14:04:51 -05:00
parent b3b19be20d
commit 74ebd4d135
3 changed files with 34 additions and 2 deletions

View File

@@ -1068,7 +1068,7 @@ BOOST_AUTO_TEST_CASE(load_addrman_corrupted)
BOOST_AUTO_TEST_CASE(addrman_update_address)
{
// Tests updating nTime via Connected() and nServices via SetServices()
// Tests updating nTime via Connected() and nServices via SetServices() and Add()
auto addrman = std::make_unique<AddrMan>(EMPTY_NETGROUPMAN, DETERMINISTIC, GetCheckRatio(m_node));
CNetAddr source{ResolveIP("252.2.2.2")};
CAddress addr{CAddress(ResolveService("250.1.1.1", 8333), NODE_NONE)};
@@ -1095,6 +1095,32 @@ BOOST_AUTO_TEST_CASE(addrman_update_address)
BOOST_CHECK_EQUAL(vAddr2.size(), 1U);
BOOST_CHECK(vAddr2.at(0).nTime >= start_time + 10000s);
BOOST_CHECK_EQUAL(vAddr2.at(0).nServices, NODE_NETWORK_LIMITED);
// Updating an existing addr through Add() (used in gossip relay) can add additional services but can't remove existing ones.
CAddress addr_v2{CAddress(ResolveService("250.1.1.1", 8333), NODE_P2P_V2)};
addr_v2.nTime = start_time;
BOOST_CHECK(!addrman->Add({addr_v2}, source));
std::vector<CAddress> vAddr3{addrman->GetAddr(/*max_addresses=*/0, /*max_pct=*/0, /*network=*/std::nullopt)};
BOOST_CHECK_EQUAL(vAddr3.size(), 1U);
BOOST_CHECK_EQUAL(vAddr3.at(0).nServices, NODE_P2P_V2 | NODE_NETWORK_LIMITED);
// SetServices() (used when we connected to them) overwrites existing service flags
addrman->SetServices(addr, NODE_NETWORK);
std::vector<CAddress> vAddr4{addrman->GetAddr(/*max_addresses=*/0, /*max_pct=*/0, /*network=*/std::nullopt)};
BOOST_CHECK_EQUAL(vAddr4.size(), 1U);
BOOST_CHECK_EQUAL(vAddr4.at(0).nServices, NODE_NETWORK);
// Promoting to Tried does not affect the service flags
BOOST_CHECK(addrman->Good(addr)); // addr has NODE_NONE
std::vector<CAddress> vAddr5{addrman->GetAddr(/*max_addresses=*/0, /*max_pct=*/0, /*network=*/std::nullopt)};
BOOST_CHECK_EQUAL(vAddr5.size(), 1U);
BOOST_CHECK_EQUAL(vAddr5.at(0).nServices, NODE_NETWORK);
// Adding service flags even works when the addr is in Tried
BOOST_CHECK(!addrman->Add({addr_v2}, source));
std::vector<CAddress> vAddr6{addrman->GetAddr(/*max_addresses=*/0, /*max_pct=*/0, /*network=*/std::nullopt)};
BOOST_CHECK_EQUAL(vAddr6.size(), 1U);
BOOST_CHECK_EQUAL(vAddr6.at(0).nServices, NODE_NETWORK | NODE_P2P_V2);
}
BOOST_AUTO_TEST_CASE(addrman_size)