Update getpeerinfo/-netinfo/TxRelay#m_relay_txs relaytxes docs (for v24 backport)

to the current p2p behavior.  We only initialize the Peer::TxRelay m_relay_txs
data structure if it isn't an outbound block-relay-only connection and fRelay=true
(the peer wishes to receive tx announcements) or we're offering NODE_BLOOM to this peer.

Author: jonatack

src/bitcoin-cli.cpp

@@ -642,7 +642,7 @@ class NetinfoRequestHandler : public BaseRequestHandler
         "  send     Time since last message sent to the peer, in seconds\n"
         "  recv     Time since last message received from the peer, in seconds\n"
         "  txn      Time since last novel transaction received from the peer and accepted into our mempool, in minutes\n"
-        "           \"*\" - the peer requested we not relay transactions to it (relaytxes is false)\n"
+        "           \"*\" - whether we relay transactions to this peer (relaytxes is false)\n"
         "  blk      Time since last novel block passing initial validity checks received from the peer, in minutes\n"
         "  hb       High-bandwidth BIP152 compact block relay\n"
         "           \".\" (to)   - we selected the peer as a high-bandwidth peer\n"

src/net_processing.cpp

@@ -271,12 +271,7 @@ struct Peer {
 
     struct TxRelay {
         mutable RecursiveMutex m_bloom_filter_mutex;
-        /** Whether the peer wishes to receive transaction announcements.
-         *
-         * This is initially set based on the fRelay flag in the received
-         * `version` message. If initially set to false, it can only be flipped
-         * to true if we have offered the peer NODE_BLOOM services and it sends
-         * us a `filterload` or `filterclear` message. See BIP37. */
+        /** Whether we relay transactions to this peer. */
         bool m_relay_txs GUARDED_BY(m_bloom_filter_mutex){false};
         /** A bloom filter for which transactions to announce to the peer. See BIP37. */
         std::unique_ptr<CBloomFilter> m_bloom_filter PT_GUARDED_BY(m_bloom_filter_mutex) GUARDED_BY(m_bloom_filter_mutex){nullptr};
@@ -3247,10 +3242,11 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type,
         }
         peer->m_starting_height = starting_height;
 
-        // We only initialize the m_tx_relay data structure if:
-        // - this isn't an outbound block-relay-only connection; and
-        // - fRelay=true or we're offering NODE_BLOOM to this peer
-        //   (NODE_BLOOM means that the peer may turn on tx relay later)
+        // We only initialize the Peer::TxRelay m_relay_txs data structure if:
+        // - this isn't an outbound block-relay-only connection, and
+        // - fRelay=true (the peer wishes to receive transaction announcements)
+        //   or we're offering NODE_BLOOM to this peer. NODE_BLOOM means that
+        //   the peer may turn on transaction relay later.
         if (!pfrom.IsBlockOnlyConn() &&
             (fRelay || (peer->m_our_services & NODE_BLOOM))) {
             auto* const tx_relay = peer->SetTxRelay();

src/rpc/net.cpp

@@ -114,7 +114,7 @@ static RPCHelpMan getpeerinfo()
                     {
                         {RPCResult::Type::STR, "SERVICE_NAME", "the service name if it is recognised"}
                     }},
-                    {RPCResult::Type::BOOL, "relaytxes", /*optional=*/true, "Whether peer has asked us to relay transactions to it"},
+                    {RPCResult::Type::BOOL, "relaytxes", /*optional=*/true, "Whether we relay transactions to this peer"},
                     {RPCResult::Type::NUM_TIME, "lastsend", "The " + UNIX_EPOCH_TIME + " of the last send"},
                     {RPCResult::Type::NUM_TIME, "lastrecv", "The " + UNIX_EPOCH_TIME + " of the last receive"},
                     {RPCResult::Type::NUM_TIME, "last_transaction", "The " + UNIX_EPOCH_TIME + " of the last valid transaction received from this peer"},