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c02337e1b0
fa87da2f172ae2e6dc15e9ed156a3564a8ecfbdd qa: Avoid start/stop of the network thread mid-test (MarcoFalke) Pull request description: This simplifies test writing by removing the need to handle the network thread in tests. E.g. start thread, join thread, restart thread mid-test, adding p2p connections at the "right" time, ... Tree-SHA512: 533642f12fef5496f1933855edcdab1a7ed901d088d34911749cd0f9e044c8a6cb1f89985ac3a7f41a512943663e4e270a61978f6f072143ae050cd102d4eab8
125 lines
4.9 KiB
Python
Executable File
125 lines
4.9 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2017 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 message sending before handshake completion.
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A node should never send anything other than VERSION/VERACK/REJECT until it's
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received a VERACK.
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This test connects to a node and sends it a few messages, trying to entice it
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into sending us something it shouldn't.
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"""
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from test_framework.mininode import *
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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banscore = 10
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class CLazyNode(P2PInterface):
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def __init__(self):
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super().__init__()
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self.unexpected_msg = False
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self.ever_connected = False
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def bad_message(self, message):
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self.unexpected_msg = True
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self.log.info("should not have received message: %s" % message.command)
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def on_open(self):
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self.ever_connected = True
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def on_version(self, message): self.bad_message(message)
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def on_verack(self, message): self.bad_message(message)
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def on_reject(self, message): self.bad_message(message)
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def on_inv(self, message): self.bad_message(message)
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def on_addr(self, message): self.bad_message(message)
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def on_getdata(self, message): self.bad_message(message)
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def on_getblocks(self, message): self.bad_message(message)
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def on_tx(self, message): self.bad_message(message)
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def on_block(self, message): self.bad_message(message)
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def on_getaddr(self, message): self.bad_message(message)
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def on_headers(self, message): self.bad_message(message)
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def on_getheaders(self, message): self.bad_message(message)
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def on_ping(self, message): self.bad_message(message)
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def on_mempool(self, message): self.bad_message(message)
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def on_pong(self, message): self.bad_message(message)
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def on_sendheaders(self, message): self.bad_message(message)
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def on_sendcmpct(self, message): self.bad_message(message)
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def on_cmpctblock(self, message): self.bad_message(message)
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def on_getblocktxn(self, message): self.bad_message(message)
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def on_blocktxn(self, message): self.bad_message(message)
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# Node that never sends a version. We'll use this to send a bunch of messages
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# anyway, and eventually get disconnected.
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class CNodeNoVersionBan(CLazyNode):
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# send a bunch of veracks without sending a message. This should get us disconnected.
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# NOTE: implementation-specific check here. Remove if dashd ban behavior changes
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def on_open(self):
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super().on_open()
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for i in range(banscore):
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self.send_message(msg_verack())
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def on_reject(self, message): pass
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# Node that never sends a version. This one just sits idle and hopes to receive
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# any message (it shouldn't!)
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class CNodeNoVersionIdle(CLazyNode):
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def __init__(self):
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super().__init__()
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# Node that sends a version but not a verack.
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class CNodeNoVerackIdle(CLazyNode):
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def __init__(self):
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self.version_received = False
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super().__init__()
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def on_reject(self, message): pass
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def on_verack(self, message): pass
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# When version is received, don't reply with a verack. Instead, see if the
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# node will give us a message that it shouldn't. This is not an exhaustive
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# list!
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def on_version(self, message):
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self.version_received = True
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self.send_message(msg_ping())
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self.send_message(msg_getaddr())
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class P2PLeakTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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self.extra_args = [['-banscore='+str(banscore)]]
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def run_test(self):
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no_version_bannode = self.nodes[0].add_p2p_connection(CNodeNoVersionBan(), send_version=False)
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no_version_idlenode = self.nodes[0].add_p2p_connection(CNodeNoVersionIdle(), send_version=False)
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no_verack_idlenode = self.nodes[0].add_p2p_connection(CNodeNoVerackIdle())
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wait_until(lambda: no_version_bannode.ever_connected, timeout=10, lock=mininode_lock)
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wait_until(lambda: no_version_idlenode.ever_connected, timeout=10, lock=mininode_lock)
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wait_until(lambda: no_verack_idlenode.version_received, timeout=10, lock=mininode_lock)
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# Mine a block and make sure that it's not sent to the connected nodes
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self.nodes[0].generate(1)
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#Give the node enough time to possibly leak out a message
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time.sleep(5)
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#This node should have been banned
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assert not no_version_bannode.is_connected
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self.nodes[0].disconnect_p2ps()
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# Wait until all connections are closed
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wait_until(lambda: len(self.nodes[0].getpeerinfo()) == 0)
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# Make sure no unexpected messages came in
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assert(no_version_bannode.unexpected_msg == False)
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assert(no_version_idlenode.unexpected_msg == False)
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assert(no_verack_idlenode.unexpected_msg == False)
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if __name__ == '__main__':
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P2PLeakTest().main()
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