def test_filter(self, filter_peer):
# Set the bloomfilter using filterload
filter_peer.send_and_ping(filter_peer.watch_filter_init)
# If fRelay is not already True, sending filterload sets it to True
assert self.nodes[0].getpeerinfo()[0]['relaytxes']
filter_address = self.nodes[0].decodescript(
filter_peer.watch_script_pubkey)['addresses'][0]
self.log.info(
'Check that we receive merkleblock and tx if the filter matches a tx in a block'
)
block_hash = self.nodes[0].generatetoaddress(1, filter_address)[0]
txid = self.nodes[0].getblock(block_hash)['tx'][0]
filter_peer.wait_for_merkleblock(block_hash)
filter_peer.wait_for_tx(txid)
self.log.info(
'Check that we only receive a merkleblock if the filter does not match a tx in a block'
)
filter_peer.tx_received = False
block_hash = self.nodes[0].generatetoaddress(
1, self.nodes[0].getnewaddress())[0]
filter_peer.wait_for_merkleblock(block_hash)
assert not filter_peer.tx_received
self.log.info(
'Check that we not receive a tx if the filter does not match a mempool tx'
)
filter_peer.merkleblock_received = False
filter_peer.tx_received = False
self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 90)
filter_peer.sync_with_ping()
filter_peer.sync_with_ping()
assert not filter_peer.merkleblock_received
assert not filter_peer.tx_received
self.log.info(
'Check that we receive a tx if the filter matches a mempool tx')
filter_peer.merkleblock_received = False
txid = self.nodes[0].sendtoaddress(filter_address, 90)
filter_peer.wait_for_tx(txid)
assert not filter_peer.merkleblock_received
self.log.info(
'Check that after deleting filter all txs get relayed again')
filter_peer.send_and_ping(msg_filterclear())
for _ in range(5):
txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(),
7)
filter_peer.wait_for_tx(txid)
self.log.info(
'Check that request for filtered blocks is ignored if no filter is set'
)
filter_peer.merkleblock_received = False
filter_peer.tx_received = False
with self.nodes[0].assert_debug_log(
expected_msgs=['received getdata']):
block_hash = self.nodes[0].generatetoaddress(
1, self.nodes[0].getnewaddress())[0]
filter_peer.wait_for_inv([CInv(MSG_BLOCK, int(block_hash, 16))])
filter_peer.sync_with_ping()
assert not filter_peer.merkleblock_received
assert not filter_peer.tx_received
self.log.info(
'Check that sending "filteradd" if no filter is set is treated as misbehavior'
)
with self.nodes[0].assert_debug_log(['Misbehaving']):
filter_peer.send_and_ping(msg_filteradd(data=b'letsmisbehave'))
self.log.info(
"Check that division-by-zero remote crash bug [CVE-2013-5700] is fixed"
)
filter_peer.send_and_ping(msg_filterload(data=b'', nHashFuncs=1))
filter_peer.send_and_ping(
msg_filteradd(data=b'letstrytocrashthisnode'))
self.nodes[0].disconnect_p2ps()
def run_test(self):
filter_node = self.nodes[0].add_p2p_connection(FilterNode())
self.log.info('Check that too large filter is rejected')
with self.nodes[0].assert_debug_log(['Misbehaving']):
filter_node.send_and_ping(msg_filterload(data=b'\xaa', nHashFuncs=MAX_BLOOM_HASH_FUNCS+1))
with self.nodes[0].assert_debug_log(['Misbehaving']):
filter_node.send_and_ping(msg_filterload(data=b'\xbb'*(MAX_BLOOM_FILTER_SIZE+1)))
self.log.info('Check that too large data element to add to the filter is rejected')
with self.nodes[0].assert_debug_log(['Misbehaving']):
filter_node.send_and_ping(msg_filteradd(data=b'\xcc'*(MAX_SCRIPT_ELEMENT_SIZE+1)))
self.log.info('Add filtered P2P connection to the node')
filter_node.send_and_ping(filter_node.watch_filter_init)
filter_address = self.nodes[0].decodescript(filter_node.watch_script_pubkey)['addresses'][0]
self.log.info('Check that we receive merkleblock and tx if the filter matches a tx in a block')
block_hash = self.nodes[0].generatetoaddress(1, filter_address)[0]
txid = self.nodes[0].getblock(block_hash)['tx'][0]
filter_node.wait_for_merkleblock(block_hash)
filter_node.wait_for_tx(txid)
self.log.info('Check that we only receive a merkleblock if the filter does not match a tx in a block')
filter_node.tx_received = False
block_hash = self.nodes[0].generatetoaddress(1, self.nodes[0].getnewaddress())[0]
filter_node.wait_for_merkleblock(block_hash)
assert not filter_node.tx_received
self.log.info('Check that we not receive a tx if the filter does not match a mempool tx')
filter_node.merkleblock_received = False
filter_node.tx_received = False
self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 90)
filter_node.sync_with_ping()
filter_node.sync_with_ping()
assert not filter_node.merkleblock_received
assert not filter_node.tx_received
self.log.info('Check that we receive a tx in reply to a mempool msg if the filter matches a mempool tx')
filter_node.merkleblock_received = False
txid = self.nodes[0].sendtoaddress(filter_address, 90)
filter_node.wait_for_tx(txid)
assert not filter_node.merkleblock_received
self.log.info('Check that after deleting filter all txs get relayed again')
filter_node.send_and_ping(msg_filterclear())
for _ in range(5):
txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 7)
filter_node.wait_for_tx(txid)
self.log.info('Check that request for filtered blocks is ignored if no filter is set')
filter_node.merkleblock_received = False
filter_node.tx_received = False
with self.nodes[0].assert_debug_log(expected_msgs=['received getdata']):
block_hash = self.nodes[0].generatetoaddress(1, self.nodes[0].getnewaddress())[0]
filter_node.wait_for_inv([CInv(MSG_BLOCK, int(block_hash, 16))])
filter_node.sync_with_ping()
assert not filter_node.merkleblock_received
assert not filter_node.tx_received
self.log.info('Check that sending "filteradd" if no filter is set is treated as misbehavior')
with self.nodes[0].assert_debug_log(['Misbehaving']):
filter_node.send_and_ping(msg_filteradd(data=b'letsmisbehave'))
self.log.info("Check that division-by-zero remote crash bug [CVE-2013-5700] is fixed")
filter_node.send_and_ping(msg_filterload(data=b'', nHashFuncs=1))
filter_node.send_and_ping(msg_filteradd(data=b'letstrytocrashthisnode'))