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113 lines
4.5 KiB
113 lines
4.5 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2017-2020 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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"""Tests NODE_NETWORK_LIMITED. |
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Tests that a node configured with -prune=550 signals NODE_NETWORK_LIMITED correctly |
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and that it responds to getdata requests for blocks correctly: |
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- send a block within 288 + 2 of the tip |
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- disconnect peers who request blocks older than that.""" |
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from test_framework.messages import CInv, MSG_BLOCK, msg_getdata, msg_verack, NODE_NETWORK_LIMITED, NODE_WITNESS |
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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 ( |
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assert_equal, |
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) |
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class P2PIgnoreInv(P2PInterface): |
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firstAddrnServices = 0 |
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def on_inv(self, message): |
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# The node will send us invs for other blocks. Ignore them. |
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pass |
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def on_addr(self, message): |
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self.firstAddrnServices = message.addrs[0].nServices |
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def wait_for_addr(self, timeout=5): |
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test_function = lambda: self.last_message.get("addr") |
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self.wait_until(test_function, timeout=timeout) |
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def send_getdata_for_block(self, blockhash): |
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getdata_request = msg_getdata() |
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getdata_request.inv.append(CInv(MSG_BLOCK, int(blockhash, 16))) |
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self.send_message(getdata_request) |
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class NodeNetworkLimitedTest(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 = 3 |
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self.extra_args = [['-prune=550', '-addrmantest'], [], []] |
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def disconnect_all(self): |
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self.disconnect_nodes(0, 1) |
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self.disconnect_nodes(0, 2) |
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self.disconnect_nodes(1, 2) |
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def setup_network(self): |
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self.add_nodes(self.num_nodes, self.extra_args) |
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self.start_nodes() |
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def run_test(self): |
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node = self.nodes[0].add_p2p_connection(P2PIgnoreInv()) |
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expected_services = NODE_WITNESS | NODE_NETWORK_LIMITED |
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self.log.info("Check that node has signalled expected services.") |
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assert_equal(node.nServices, expected_services) |
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self.log.info("Check that the localservices is as expected.") |
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assert_equal(int(self.nodes[0].getnetworkinfo()['localservices'], 16), expected_services) |
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self.log.info("Mine enough blocks to reach the NODE_NETWORK_LIMITED range.") |
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self.connect_nodes(0, 1) |
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blocks = self.nodes[1].generatetoaddress(292, self.nodes[1].get_deterministic_priv_key().address) |
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self.sync_blocks([self.nodes[0], self.nodes[1]]) |
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self.log.info("Make sure we can max retrieve block at tip-288.") |
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node.send_getdata_for_block(blocks[1]) # last block in valid range |
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node.wait_for_block(int(blocks[1], 16), timeout=3) |
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self.log.info("Requesting block at height 2 (tip-289) must fail (ignored).") |
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node.send_getdata_for_block(blocks[0]) # first block outside of the 288+2 limit |
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node.wait_for_disconnect(5) |
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self.log.info("Check local address relay, do a fresh connection.") |
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self.nodes[0].disconnect_p2ps() |
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node1 = self.nodes[0].add_p2p_connection(P2PIgnoreInv()) |
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node1.send_message(msg_verack()) |
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node1.wait_for_addr() |
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#must relay address with NODE_NETWORK_LIMITED |
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assert_equal(node1.firstAddrnServices, expected_services) |
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self.nodes[0].disconnect_p2ps() |
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# connect unsynced node 2 with pruned NODE_NETWORK_LIMITED peer |
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# because node 2 is in IBD and node 0 is a NODE_NETWORK_LIMITED peer, sync must not be possible |
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self.connect_nodes(0, 2) |
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try: |
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self.sync_blocks([self.nodes[0], self.nodes[2]], timeout=5) |
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except: |
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pass |
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# node2 must remain at height 0 |
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assert_equal(self.nodes[2].getblockheader(self.nodes[2].getbestblockhash())['height'], 0) |
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# now connect also to node 1 (non pruned) |
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self.connect_nodes(1, 2) |
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# sync must be possible |
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self.sync_blocks() |
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# disconnect all peers |
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self.disconnect_all() |
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# mine 10 blocks on node 0 (pruned node) |
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self.nodes[0].generatetoaddress(10, self.nodes[0].get_deterministic_priv_key().address) |
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# connect node1 (non pruned) with node0 (pruned) and check if the can sync |
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self.connect_nodes(0, 1) |
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# sync must be possible, node 1 is no longer in IBD and should therefore connect to node 0 (NODE_NETWORK_LIMITED) |
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self.sync_blocks([self.nodes[0], self.nodes[1]]) |
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if __name__ == '__main__': |
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NodeNetworkLimitedTest().main()
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