diff --git a/src/net_processing.cpp b/src/net_processing.cpp index 1d69975f552..7b5ba955b2e 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -603,9 +603,11 @@ private: /** Next time to check for stale tip */ std::chrono::seconds m_stale_tip_check_time{0s}; - /** Whether this node is running in blocks only mode */ + /** Whether this node is running in -blocksonly mode */ const bool m_ignore_incoming_txs; + bool RejectIncomingTxs(const CNode& peer) const; + /** Whether we've completed initial sync yet, for determining when to turn * on extra block-relay-only peers. */ bool m_initial_sync_finished{false}; @@ -1009,7 +1011,7 @@ void PeerManagerImpl::MaybeSetPeerAsAnnouncingHeaderAndIDs(NodeId nodeid) { AssertLockHeld(cs_main); - // Never request high-bandwidth mode from peers if we're blocks-only. Our + // When in -blocksonly mode, never request high-bandwidth mode from peers. Our // mempool will not contain the transactions necessary to reconstruct the // compact block. if (m_ignore_incoming_txs) return; @@ -3084,14 +3086,7 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type, return; } - // Reject tx INVs when the -blocksonly setting is enabled, or this is a - // block-relay-only peer - bool reject_tx_invs{m_ignore_incoming_txs || pfrom.IsBlockOnlyConn()}; - - // Allow peers with relay permission to send data other than blocks in blocks only mode - if (pfrom.HasPermission(NetPermissionFlags::Relay)) { - reject_tx_invs = false; - } + const bool reject_tx_invs{RejectIncomingTxs(pfrom)}; LOCK(cs_main); @@ -3372,10 +3367,7 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type, } if (msg_type == NetMsgType::TX) { - // Stop processing the transaction early if - // 1) We are in blocks only mode and peer has no relay permission; OR - // 2) This peer is a block-relay-only peer - if ((m_ignore_incoming_txs && !pfrom.HasPermission(NetPermissionFlags::Relay)) || pfrom.IsBlockOnlyConn()) { + if (RejectIncomingTxs(pfrom)) { LogPrint(BCLog::NET, "transaction sent in violation of protocol peer=%d\n", pfrom.GetId()); pfrom.fDisconnect = true; return; @@ -4659,6 +4651,15 @@ public: return mp->CompareDepthAndScore(*b, *a, m_wtxid_relay); } }; +} // namespace + +bool PeerManagerImpl::RejectIncomingTxs(const CNode& peer) const +{ + // block-relay-only peers may never send txs to us + if (peer.IsBlockOnlyConn()) 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; } bool PeerManagerImpl::SetupAddressRelay(const CNode& node, Peer& peer) diff --git a/test/functional/p2p_blocksonly.py b/test/functional/p2p_blocksonly.py index 12ee4b3c27a..8ac38bff3ad 100755 --- a/test/functional/p2p_blocksonly.py +++ b/test/functional/p2p_blocksonly.py @@ -89,6 +89,11 @@ class P2PBlocksOnly(BitcoinTestFramework): assert_equal(self.nodes[0].getpeerinfo()[0]['relaytxes'], False) _, txid, _, tx_hex = self.check_p2p_tx_violation() + self.log.info("Tests with node in normal mode with block-relay-only connection, sending an inv") + conn = self.nodes[0].add_outbound_p2p_connection(P2PInterface(), p2p_idx=0, connection_type="block-relay-only") + assert_equal(self.nodes[0].getpeerinfo()[0]['relaytxes'], False) + self.check_p2p_inv_violation(conn) + self.log.info("Check that txs from RPC are not sent to blockrelay connection") conn = self.nodes[0].add_outbound_p2p_connection(P2PTxInvStore(), p2p_idx=1, connection_type="block-relay-only") @@ -100,6 +105,13 @@ class P2PBlocksOnly(BitcoinTestFramework): conn.sync_send_with_ping() assert(int(txid, 16) not in conn.get_invs()) + def check_p2p_inv_violation(self, peer): + self.log.info("Check that tx-invs from P2P are rejected and result in disconnect") + with self.nodes[0].assert_debug_log(["inv sent in violation of protocol, disconnecting peer"]): + peer.send_message(msg_inv([CInv(t=MSG_WTX, h=0x12345)])) + peer.wait_for_disconnect() + self.nodes[0].disconnect_p2ps() + def check_p2p_tx_violation(self): self.log.info('Check that txs from P2P are rejected and result in disconnect') spendtx = self.miniwallet.create_self_transfer() @@ -108,9 +120,7 @@ class P2PBlocksOnly(BitcoinTestFramework): self.nodes[0].p2ps[0].send_message(msg_tx(spendtx['tx'])) self.nodes[0].p2ps[0].wait_for_disconnect() assert_equal(self.nodes[0].getmempoolinfo()['size'], 0) - - # Remove the disconnected peer - del self.nodes[0].p2ps[0] + self.nodes[0].disconnect_p2ps() return spendtx['tx'], spendtx['txid'], spendtx['wtxid'], spendtx['hex']