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127 lines
5.2 KiB
127 lines
5.2 KiB
#!/usr/bin/env python3
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# Copyright (c) 2020 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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"""Test ping message
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"""
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import time
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from test_framework.messages import msg_pong
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from test_framework.p2p import P2PInterface
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_equal
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PING_INTERVAL = 2 * 60
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class msg_pong_corrupt(msg_pong):
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def serialize(self):
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return b""
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class NodePongAdd1(P2PInterface):
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def on_ping(self, message):
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self.send_message(msg_pong(message.nonce + 1))
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class NodeNoPong(P2PInterface):
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def on_ping(self, message):
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pass
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TIMEOUT_INTERVAL = 20 * 60
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class PingPongTest(BitcoinTestFramework):
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def set_test_params(self):
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self.setup_clean_chain = True
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self.num_nodes = 1
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# Set the peer connection timeout low. It does not matter for this
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# test, as long as it is less than TIMEOUT_INTERVAL.
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self.extra_args = [['-peertimeout=1']]
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def check_peer_info(self, *, pingtime, minping, pingwait):
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stats = self.nodes[0].getpeerinfo()[0]
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assert_equal(stats.pop('pingtime', None), pingtime)
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assert_equal(stats.pop('minping', None), minping)
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assert_equal(stats.pop('pingwait', None), pingwait)
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def mock_forward(self, delta):
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self.mock_time += delta
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self.nodes[0].setmocktime(self.mock_time)
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def run_test(self):
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self.mock_time = int(time.time())
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self.mock_forward(0)
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self.log.info('Check that ping is sent after connection is established')
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no_pong_node = self.nodes[0].add_p2p_connection(NodeNoPong())
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self.mock_forward(3)
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assert no_pong_node.last_message.pop('ping').nonce != 0
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self.check_peer_info(pingtime=None, minping=None, pingwait=3)
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self.log.info('Reply without nonce cancels ping')
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with self.nodes[0].assert_debug_log(['pong peer=0: Short payload']):
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no_pong_node.send_and_ping(msg_pong_corrupt())
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self.check_peer_info(pingtime=None, minping=None, pingwait=None)
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self.log.info('Reply without ping')
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with self.nodes[0].assert_debug_log([
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'pong peer=0: Unsolicited pong without ping, 0 expected, 0 received, 8 bytes',
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]):
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no_pong_node.send_and_ping(msg_pong())
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self.check_peer_info(pingtime=None, minping=None, pingwait=None)
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self.log.info('Reply with wrong nonce does not cancel ping')
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assert 'ping' not in no_pong_node.last_message
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with self.nodes[0].assert_debug_log(['pong peer=0: Nonce mismatch']):
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# mock time PING_INTERVAL ahead to trigger node into sending a ping
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self.mock_forward(PING_INTERVAL + 1)
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no_pong_node.wait_until(lambda: 'ping' in no_pong_node.last_message)
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self.mock_forward(9)
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# Send the wrong pong
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no_pong_node.send_and_ping(msg_pong(no_pong_node.last_message.pop('ping').nonce - 1))
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self.check_peer_info(pingtime=None, minping=None, pingwait=9)
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self.log.info('Reply with zero nonce does cancel ping')
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with self.nodes[0].assert_debug_log(['pong peer=0: Nonce zero']):
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no_pong_node.send_and_ping(msg_pong(0))
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self.check_peer_info(pingtime=None, minping=None, pingwait=None)
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self.log.info('Check that ping is properly reported on RPC')
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assert 'ping' not in no_pong_node.last_message
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# mock time PING_INTERVAL ahead to trigger node into sending a ping
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self.mock_forward(PING_INTERVAL + 1)
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no_pong_node.wait_until(lambda: 'ping' in no_pong_node.last_message)
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ping_delay = 29
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self.mock_forward(ping_delay)
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no_pong_node.wait_until(lambda: 'ping' in no_pong_node.last_message)
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no_pong_node.send_and_ping(msg_pong(no_pong_node.last_message.pop('ping').nonce))
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self.check_peer_info(pingtime=ping_delay, minping=ping_delay, pingwait=None)
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self.log.info('Check that minping is decreased after a fast roundtrip')
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# mock time PING_INTERVAL ahead to trigger node into sending a ping
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self.mock_forward(PING_INTERVAL + 1)
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no_pong_node.wait_until(lambda: 'ping' in no_pong_node.last_message)
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ping_delay = 9
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self.mock_forward(ping_delay)
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no_pong_node.wait_until(lambda: 'ping' in no_pong_node.last_message)
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no_pong_node.send_and_ping(msg_pong(no_pong_node.last_message.pop('ping').nonce))
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self.check_peer_info(pingtime=ping_delay, minping=ping_delay, pingwait=None)
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self.log.info('Check that peer is disconnected after ping timeout')
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assert 'ping' not in no_pong_node.last_message
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self.nodes[0].ping()
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no_pong_node.wait_until(lambda: 'ping' in no_pong_node.last_message)
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with self.nodes[0].assert_debug_log(['ping timeout: 1201.000000s']):
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self.mock_forward(TIMEOUT_INTERVAL // 2)
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# Check that sending a ping does not prevent the disconnect
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no_pong_node.sync_with_ping()
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self.mock_forward(TIMEOUT_INTERVAL // 2 + 1)
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no_pong_node.wait_for_disconnect()
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if __name__ == '__main__':
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PingPongTest().main()
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