Merge bitcoin/bitcoin#26248: net: Set relay in version msg to peers with relay permission in -blocksonly mode

dddd1ac net: Set relay in version msg to peers with relay permission (MacroFake)

Pull request description:

  Seems odd to set the `relay` permission in -blocksonly mode and also ask the peer not to relay transactions.

ACKs for top commit:
  dergoegge:
    ACK dddd1ac
  naumenkogs:
    ACK bitcoin/bitcoin@dddd1ac
  mzumsande:
    ACK dddd1ac

Tree-SHA512: 7bb0e964993ea4982747ae2801fe963ff88586e2ded03015b60ab83172b5b61f2d50e9cde9d7711b7ab207f8639467ecafc4d011ea151ec6c82c722f510f4df7

Author: MacroFake

src/net_processing.cpp

@@ -1380,7 +1380,7 @@ void PeerManagerImpl::PushNodeVersion(CNode& pnode, const Peer& peer)
     CService addr_you = addr.IsRoutable() && !IsProxy(addr) && addr.IsAddrV1Compatible() ? addr : CService();
     uint64_t your_services{addr.nServices};
 
-    const bool tx_relay = !m_ignore_incoming_txs && !pnode.IsBlockOnlyConn() && !pnode.IsFeelerConn();
+    const bool tx_relay{!RejectIncomingTxs(pnode)};
     m_connman.PushMessage(&pnode, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERSION, PROTOCOL_VERSION, my_services, nTime,
             your_services, addr_you, // Together the pre-version-31402 serialization of CAddress "addrYou" (without nTime)
             my_services, CService(), // Together the pre-version-31402 serialization of CAddress "addrMe" (without nTime)
@@ -5307,6 +5307,7 @@ bool PeerManagerImpl::RejectIncomingTxs(const CNode& peer) const
 {
     // block-relay-only peers may never send txs to us
     if (peer.IsBlockOnlyConn()) return true;
+    if (peer.IsFeelerConn()) return true;
     // In -blocksonly mode, peers need the 'relay' permission to send txs to us
     if (m_ignore_incoming_txs && !peer.HasPermission(NetPermissionFlags::Relay)) return true;
     return false;

test/functional/p2p_blocksonly.py

@@ -57,6 +57,7 @@ def blocksonly_mode_tests(self):
         second_peer = self.nodes[0].add_p2p_connection(P2PInterface())
         peer_1_info = self.nodes[0].getpeerinfo()[0]
         assert_equal(peer_1_info['permissions'], ['relay'])
+        assert_equal(first_peer.relay, 1)
         peer_2_info = self.nodes[0].getpeerinfo()[1]
         assert_equal(peer_2_info['permissions'], ['relay'])
         assert_equal(self.nodes[0].testmempoolaccept([tx_hex])[0]['allowed'], True)

test/functional/test_framework/p2p.py

@@ -449,6 +449,7 @@ def on_version(self, message):
             self.send_message(msg_sendaddrv2())
         self.send_message(msg_verack())
         self.nServices = message.nServices
+        self.relay = message.relay
         self.send_message(msg_getaddr())
 
     # Connection helper methods