1 #!/usr/bin/env python3
2 # Copyright (c) 2020-present The Bitcoin Core developers
3 # Distributed under the MIT software license, see the accompanying
4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 """Test transaction relay behavior during IBD:
6 - Set fee filters to MAX_MONEY
7 - Don't request transactions
8 - Ignore all transaction messages
9 """
10 11 from decimal import Decimal
12 import time
13 14 from test_framework.blocktools import create_block
15 from test_framework.messages import (
16 CInv,
17 COIN,
18 CTransaction,
19 from_hex,
20 msg_inv,
21 msg_tx,
22 MSG_WTX,
23 )
24 from test_framework.p2p import (
25 NONPREF_PEER_TX_DELAY,
26 P2PDataStore,
27 P2PInterface,
28 p2p_lock
29 )
30 from test_framework.test_framework import BitcoinTestFramework
31 32 MAX_FEE_FILTER = Decimal(9936506) / COIN
33 NORMAL_FEE_FILTER = Decimal(10) / COIN
34 35 36 class P2PIBDTxRelayTest(BitcoinTestFramework):
37 def set_test_params(self):
38 self.setup_clean_chain = True
39 self.num_nodes = 2
40 self.extra_args = [
41 ["-minrelaytxfee={:.8f}".format(NORMAL_FEE_FILTER)],
42 ["-minrelaytxfee={:.8f}".format(NORMAL_FEE_FILTER)],
43 ]
44 45 def run_test(self):
46 self.log.info("Check that nodes set minfilter to MAX_MONEY while still in IBD")
47 for node in self.nodes:
48 assert node.getblockchaininfo()['initialblockdownload']
49 self.wait_until(lambda: all(peer['minfeefilter'] == MAX_FEE_FILTER for peer in node.getpeerinfo()))
50 51 self.nodes[0].setmocktime(int(time.time()))
52 self.log.info("Mine one old block so we stay in IBD, then remember its coinbase wtxid")
53 block = create_block(int(self.nodes[0].getbestblockhash(), 16), height=1, ntime=int(time.time()) - 2 * 24 * 60 * 60)
54 block.solve()
55 self.nodes[0].submitblock(block.serialize().hex())
56 assert self.nodes[0].getblockchaininfo()['initialblockdownload']
57 ibd_wtxid = int(self.nodes[0].getblock(f"{block.hash_int:064x}", 2)["tx"][0]["hash"], 16)
58 59 self.log.info("Check that nodes don't send getdatas for transactions while still in IBD")
60 peer_inver = self.nodes[0].add_p2p_connection(P2PDataStore())
61 txid = 0xdeadbeef
62 peer_inver.send_and_ping(msg_inv([CInv(t=MSG_WTX, h=txid)]))
63 # The node should not send a getdata, but if it did, it would first delay 2 seconds
64 self.nodes[0].bumpmocktime(NONPREF_PEER_TX_DELAY)
65 peer_inver.sync_with_ping()
66 with p2p_lock:
67 assert txid not in peer_inver.getdata_requests
68 self.nodes[0].disconnect_p2ps()
69 70 self.log.info("Check that nodes don't process unsolicited transactions while still in IBD")
71 # A transaction hex pulled from tx_valid.json. There are no valid transactions since no UTXOs
72 # exist yet, but it should be a well-formed transaction.
73 rawhex = "0100000001b14bdcbc3e01bdaad36cc08e81e69c82e1060bc14e518db2b49aa43ad90ba260000000004a01ff473" + \
74 "04402203f16c6f40162ab686621ef3000b04e75418a0c0cb2d8aebeac894ae360ac1e780220ddc15ecdfc3507ac48e168" + \
75 "1a33eb60996631bf6bf5bc0a0682c4db743ce7ca2b01ffffffff0140420f00000000001976a914660d4ef3a743e3e696a" + \
76 "d990364e555c271ad504b88ac00000000"
77 assert self.nodes[1].decoderawtransaction(rawhex) # returns a dict, should not throw
78 tx = from_hex(CTransaction(), rawhex)
79 peer_txer = self.nodes[0].add_p2p_connection(P2PInterface())
80 with self.nodes[0].assert_debug_log(expected_msgs=["received: tx"], unexpected_msgs=["was not accepted"]):
81 peer_txer.send_and_ping(msg_tx(tx))
82 self.nodes[0].disconnect_p2ps()
83 84 # Come out of IBD by generating a block
85 self.generate(self.nodes[0], 1)
86 87 self.log.info("Check that nodes reset minfilter after coming out of IBD")
88 for node in self.nodes:
89 assert not node.getblockchaininfo()['initialblockdownload']
90 self.wait_until(lambda: all(peer['minfeefilter'] == NORMAL_FEE_FILTER for peer in node.getpeerinfo()))
91 92 self.log.info("Check that txs confirmed during IBD are not in the recently-confirmed filter once out of ibd")
93 peer_inver = self.nodes[0].add_p2p_connection(P2PDataStore())
94 peer_inver.send_and_ping(msg_inv([CInv(t=MSG_WTX, h=ibd_wtxid)]))
95 self.nodes[0].bumpmocktime(NONPREF_PEER_TX_DELAY)
96 peer_inver.wait_for_getdata([ibd_wtxid])
97 self.nodes[0].disconnect_p2ps()
98 99 self.log.info("Check that nodes process the same transaction, even when unsolicited, when no longer in IBD")
100 peer_txer = self.nodes[0].add_p2p_connection(P2PInterface())
101 with self.nodes[0].assert_debug_log(expected_msgs=["was not accepted"]):
102 peer_txer.send_and_ping(msg_tx(tx))
103 104 if __name__ == '__main__':
105 P2PIBDTxRelayTest(__file__).main()
106