diff options
Diffstat (limited to 'test/functional')
| -rwxr-xr-x | test/functional/p2p_compactblocks_blocksonly.py | 130 | ||||
| -rwxr-xr-x | test/functional/test_runner.py | 1 |
2 files changed, 131 insertions, 0 deletions
diff --git a/test/functional/p2p_compactblocks_blocksonly.py b/test/functional/p2p_compactblocks_blocksonly.py new file mode 100755 index 0000000000..4073ec03a6 --- /dev/null +++ b/test/functional/p2p_compactblocks_blocksonly.py @@ -0,0 +1,130 @@ +#!/usr/bin/env python3 +# Copyright (c) 2021-2021 The Bitcoin Core developers +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. +"""Test that a node in blocksonly mode does not request compact blocks.""" + +from test_framework.messages import ( + MSG_BLOCK, + MSG_CMPCT_BLOCK, + MSG_WITNESS_FLAG, + CBlock, + CBlockHeader, + CInv, + from_hex, + msg_block, + msg_getdata, + msg_headers, + msg_sendcmpct, +) +from test_framework.p2p import P2PInterface +from test_framework.test_framework import BitcoinTestFramework +from test_framework.util import assert_equal + + +class P2PCompactBlocksBlocksOnly(BitcoinTestFramework): + def set_test_params(self): + self.extra_args = [["-blocksonly"], [], [], []] + self.num_nodes = 4 + + def setup_network(self): + self.setup_nodes() + # Start network with everyone disconnected + self.sync_all() + + def build_block_on_tip(self): + blockhash = self.nodes[2].generate(1)[0] + block_hex = self.nodes[2].getblock(blockhash=blockhash, verbosity=0) + block = from_hex(CBlock(), block_hex) + block.rehash() + return block + + def run_test(self): + # Nodes will only request hb compact blocks mode when they're out of IBD + for node in self.nodes: + assert not node.getblockchaininfo()['initialblockdownload'] + + p2p_conn_blocksonly = self.nodes[0].add_p2p_connection(P2PInterface()) + p2p_conn_high_bw = self.nodes[1].add_p2p_connection(P2PInterface()) + p2p_conn_low_bw = self.nodes[3].add_p2p_connection(P2PInterface()) + for conn in [p2p_conn_blocksonly, p2p_conn_high_bw, p2p_conn_low_bw]: + assert_equal(conn.message_count['sendcmpct'], 2) + conn.send_and_ping(msg_sendcmpct(announce=False, version=2)) + + # Nodes: + # 0 -> blocksonly + # 1 -> high bandwidth + # 2 -> miner + # 3 -> low bandwidth + # + # Topology: + # p2p_conn_blocksonly ---> node0 + # p2p_conn_high_bw ---> node1 + # p2p_conn_low_bw ---> node3 + # node2 (no connections) + # + # node2 produces blocks that are passed to the rest of the nodes + # through the respective p2p connections. + + self.log.info("Test that -blocksonly nodes do not select peers for BIP152 high bandwidth mode") + + block0 = self.build_block_on_tip() + + # A -blocksonly node should not request BIP152 high bandwidth mode upon + # receiving a new valid block at the tip. + p2p_conn_blocksonly.send_and_ping(msg_block(block0)) + assert_equal(int(self.nodes[0].getbestblockhash(), 16), block0.sha256) + assert_equal(p2p_conn_blocksonly.message_count['sendcmpct'], 2) + assert_equal(p2p_conn_blocksonly.last_message['sendcmpct'].announce, False) + + # A normal node participating in transaction relay should request BIP152 + # high bandwidth mode upon receiving a new valid block at the tip. + p2p_conn_high_bw.send_and_ping(msg_block(block0)) + assert_equal(int(self.nodes[1].getbestblockhash(), 16), block0.sha256) + p2p_conn_high_bw.wait_until(lambda: p2p_conn_high_bw.message_count['sendcmpct'] == 3) + assert_equal(p2p_conn_high_bw.last_message['sendcmpct'].announce, True) + + # Don't send a block from the p2p_conn_low_bw so the low bandwidth node + # doesn't select it for BIP152 high bandwidth relay. + self.nodes[3].submitblock(block0.serialize().hex()) + + self.log.info("Test that -blocksonly nodes send getdata(BLOCK) instead" + " of getdata(CMPCT) in BIP152 low bandwidth mode") + + block1 = self.build_block_on_tip() + + p2p_conn_blocksonly.send_message(msg_headers(headers=[CBlockHeader(block1)])) + p2p_conn_blocksonly.sync_send_with_ping() + assert_equal(p2p_conn_blocksonly.last_message['getdata'].inv, [CInv(MSG_BLOCK | MSG_WITNESS_FLAG, block1.sha256)]) + + p2p_conn_high_bw.send_message(msg_headers(headers=[CBlockHeader(block1)])) + p2p_conn_high_bw.sync_send_with_ping() + assert_equal(p2p_conn_high_bw.last_message['getdata'].inv, [CInv(MSG_CMPCT_BLOCK, block1.sha256)]) + + self.log.info("Test that getdata(CMPCT) is still sent on BIP152 low bandwidth connections" + " when no -blocksonly nodes are involved") + + p2p_conn_low_bw.send_and_ping(msg_headers(headers=[CBlockHeader(block1)])) + p2p_conn_low_bw.sync_with_ping() + assert_equal(p2p_conn_low_bw.last_message['getdata'].inv, [CInv(MSG_CMPCT_BLOCK, block1.sha256)]) + + self.log.info("Test that -blocksonly nodes still serve compact blocks") + + def test_for_cmpctblock(block): + if 'cmpctblock' not in p2p_conn_blocksonly.last_message: + return False + return p2p_conn_blocksonly.last_message['cmpctblock'].header_and_shortids.header.rehash() == block.sha256 + + p2p_conn_blocksonly.send_message(msg_getdata([CInv(MSG_CMPCT_BLOCK, block0.sha256)])) + p2p_conn_blocksonly.wait_until(lambda: test_for_cmpctblock(block0)) + + # Request BIP152 high bandwidth mode from the -blocksonly node. + p2p_conn_blocksonly.send_and_ping(msg_sendcmpct(announce=True, version=2)) + + block2 = self.build_block_on_tip() + self.nodes[0].submitblock(block1.serialize().hex()) + self.nodes[0].submitblock(block2.serialize().hex()) + p2p_conn_blocksonly.wait_until(lambda: test_for_cmpctblock(block2)) + +if __name__ == '__main__': + P2PCompactBlocksBlocksOnly().main() diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py index 2c2aaf6020..bb84962b75 100755 --- a/test/functional/test_runner.py +++ b/test/functional/test_runner.py @@ -98,6 +98,7 @@ BASE_SCRIPTS = [ 'rpc_fundrawtransaction.py --legacy-wallet', 'rpc_fundrawtransaction.py --descriptors', 'p2p_compactblocks.py', + 'p2p_compactblocks_blocksonly.py', 'feature_segwit.py --legacy-wallet', # vv Tests less than 2m vv 'wallet_basic.py --legacy-wallet', |