Merge bitcoin/bitcoin#29436: net: call Select with reachable networks in ThreadOpenConnections

e4e3b44e9c net: call `Select` with reachable networks in `ThreadOpenConnections` (brunoerg)
829becd990 addrman: change `Select` to support multiple networks (brunoerg)
f698636ec8 net: add `All()` in `ReachableNets` (brunoerg)

Pull request description:

  This PR changes addrman's `Select` to support multiple networks and change `ThreadOpenConnections` to call it with reachable networks. It can avoid unnecessary `Select` calls and avoid exceeding the max number of tries (100), especially when turning a clearnet + Tor/I2P/CJDNS node to Tor/I2P/CJDNS. Compared to #29330, this approach is "less aggresive". It does not add a new init flag and does not impact address relay.

  I did an experiment of calling `Select` without passing a network until it finds an address from a network that compose 20% ~ 25% of the addrman (limited to 100 tries).

  ![Screenshot 2024-02-14 at 14 37 58](https://github.com/bitcoin/bitcoin/assets/19480819/7b6863a5-d7a6-40b6-87d5-01667c2de66a)

ACKs for top commit:
  achow101:
    ACK e4e3b44e9c
  vasild:
    ACK e4e3b44e9c
  naumenkogs:
    ACK e4e3b44e9c

Tree-SHA512: e8466b72b85bbc2ad8bfb14471eb27d2c50d4e84218f5ede2c15a6fa3653af61b488cde492dbd398f7502bd847e95bfee1abb7e01092daba2236d3ce3d6d2268
This commit is contained in:
Ava Chow
2024-09-16 16:49:25 -04:00
8 changed files with 72 additions and 43 deletions

View File

@@ -285,7 +285,15 @@ FUZZ_TARGET(addrman, .init = initialize_addrman)
auto max_pct = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 4096);
auto filtered = fuzzed_data_provider.ConsumeBool();
(void)const_addr_man.GetAddr(max_addresses, max_pct, network, filtered);
(void)const_addr_man.Select(fuzzed_data_provider.ConsumeBool(), network);
std::unordered_set<Network> nets;
for (const auto& net : ALL_NETWORKS) {
if (fuzzed_data_provider.ConsumeBool()) {
nets.insert(net);
}
}
(void)const_addr_man.Select(fuzzed_data_provider.ConsumeBool(), nets);
std::optional<bool> in_new;
if (fuzzed_data_provider.ConsumeBool()) {
in_new = fuzzed_data_provider.ConsumeBool();