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135 lines
6.5 KiB
135 lines
6.5 KiB
#!/usr/bin/env python3
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# Copyright (c) 2022 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""
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Test encrypted v2 p2p proposed in BIP 324
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"""
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from test_framework.blocktools import (
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create_block,
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create_coinbase,
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)
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from test_framework.p2p import (
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P2PDataStore,
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P2PInterface,
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)
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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assert_greater_than,
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check_node_connections,
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)
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from test_framework.crypto.chacha20 import REKEY_INTERVAL
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class P2PEncrypted(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 2
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self.extra_args = [["-v2transport=1"], ["-v2transport=1"]]
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def setup_network(self):
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self.setup_nodes()
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def generate_blocks(self, node, number):
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test_blocks = []
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last_block = node.getbestblockhash()
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tip = int(last_block, 16)
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tipheight = node.getblockcount()
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last_block_time = node.getblock(last_block)['time']
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for _ in range(number):
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# Create some blocks
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block = create_block(tip, create_coinbase(tipheight + 1), last_block_time + 1)
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block.solve()
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test_blocks.append(block)
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tip = block.sha256
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tipheight += 1
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last_block_time += 1
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return test_blocks
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def create_test_block(self, txs):
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block = create_block(self.tip, create_coinbase(self.tipheight + 1), self.last_block_time + 600, txlist=txs)
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block.solve()
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return block
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def run_test(self):
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node0, node1 = self.nodes[0], self.nodes[1]
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self.log.info("Check inbound connection to v2 TestNode from v2 P2PConnection is v2")
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peer1 = node0.add_p2p_connection(P2PInterface(), wait_for_verack=True, supports_v2_p2p=True)
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assert peer1.supports_v2_p2p
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assert_equal(node0.getpeerinfo()[-1]["transport_protocol_type"], "v2")
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self.log.info("Check inbound connection to v2 TestNode from v1 P2PConnection is v1")
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peer2 = node0.add_p2p_connection(P2PInterface(), wait_for_verack=True, supports_v2_p2p=False)
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assert not peer2.supports_v2_p2p
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assert_equal(node0.getpeerinfo()[-1]["transport_protocol_type"], "v1")
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self.log.info("Check outbound connection from v2 TestNode to v1 P2PConnection advertised as v1 is v1")
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peer3 = node0.add_outbound_p2p_connection(P2PInterface(), p2p_idx=0, supports_v2_p2p=False, advertise_v2_p2p=False)
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assert not peer3.supports_v2_p2p
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assert_equal(node0.getpeerinfo()[-1]["transport_protocol_type"], "v1")
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# v2 TestNode performs downgrading here
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self.log.info("Check outbound connection from v2 TestNode to v1 P2PConnection advertised as v2 is v1")
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peer4 = node0.add_outbound_p2p_connection(P2PInterface(), p2p_idx=1, supports_v2_p2p=False, advertise_v2_p2p=True)
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assert not peer4.supports_v2_p2p
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assert_equal(node0.getpeerinfo()[-1]["transport_protocol_type"], "v1")
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self.log.info("Check outbound connection from v2 TestNode to v2 P2PConnection advertised as v2 is v2")
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peer5 = node0.add_outbound_p2p_connection(P2PInterface(), p2p_idx=2, supports_v2_p2p=True, advertise_v2_p2p=True)
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assert peer5.supports_v2_p2p
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assert_equal(node0.getpeerinfo()[-1]["transport_protocol_type"], "v2")
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self.log.info("Check if version is sent and verack is received in inbound/outbound connections")
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assert_equal(len(node0.getpeerinfo()), 5) # check if above 5 connections are present in node0's getpeerinfo()
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for peer in node0.getpeerinfo():
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assert_greater_than(peer['bytessent_per_msg']['version'], 0)
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assert_greater_than(peer['bytesrecv_per_msg']['verack'], 0)
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self.log.info("Testing whether blocks propagate - check if tips sync when number of blocks >= REKEY_INTERVAL")
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# tests whether rekeying (which happens every REKEY_INTERVAL packets) works correctly
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test_blocks = self.generate_blocks(node0, REKEY_INTERVAL+1)
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for i in range(2):
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peer6 = node0.add_p2p_connection(P2PDataStore(), supports_v2_p2p=True)
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assert peer6.supports_v2_p2p
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assert_equal(node0.getpeerinfo()[-1]["transport_protocol_type"], "v2")
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# Consider: node0 <-- peer6. node0 and node1 aren't connected here.
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# Construct the following topology: node1 <--> node0 <-- peer6
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# and test that blocks produced by peer6 will be received by node1 if sent normally
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# and won't be received by node1 if sent as decoy messages
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# First, check whether blocks produced be peer6 are received by node0 if sent normally
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# and not received by node0 if sent as decoy messages.
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if i:
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# check that node0 receives blocks produced by peer6
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self.log.info("Check if blocks produced by node0's p2p connection is received by node0")
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peer6.send_blocks_and_test(test_blocks, node0, success=True) # node0's tip advances
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else:
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# check that node0 doesn't receive blocks produced by peer6 since they are sent as decoy messages
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self.log.info("Check if blocks produced by node0's p2p connection sent as decoys aren't received by node0")
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peer6.send_blocks_and_test(test_blocks, node0, success=False, is_decoy=True) # node0's tip doesn't advance
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# Then, connect node0 and node1 using v2 and check whether the blocks are received by node1
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self.connect_nodes(0, 1, peer_advertises_v2=True)
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self.log.info("Wait for node1 to receive all the blocks from node0")
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self.sync_all()
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self.log.info("Make sure node0 and node1 have same block tips")
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assert_equal(node0.getbestblockhash(), node1.getbestblockhash())
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self.disconnect_nodes(0, 1)
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self.log.info("Check the connections opened as expected")
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check_node_connections(node=node0, num_in=4, num_out=3)
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self.log.info("Check inbound connection to v1 TestNode from v2 P2PConnection is v1")
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self.restart_node(0, ["-v2transport=0"])
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peer1 = node0.add_p2p_connection(P2PInterface(), wait_for_verack=True, supports_v2_p2p=True)
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assert not peer1.supports_v2_p2p
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assert_equal(node0.getpeerinfo()[-1]["transport_protocol_type"], "v1")
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check_node_connections(node=node0, num_in=1, num_out=0)
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if __name__ == '__main__':
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P2PEncrypted().main()
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