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merge bitcoin#27452: cover addrv2 anchors by adding TorV3 to CAddress in messages.py
This commit is contained in:
Kittywhiskers Van Gogh
parent
779e4295ad
commit
7dcf561306
@ -7,11 +7,14 @@
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import os
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from test_framework.p2p import P2PInterface
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from test_framework.socks5 import Socks5Configuration, Socks5Server
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from test_framework.messages import CAddress, hash256, NODE_NETWORK
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import check_node_connections
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from test_framework.util import check_node_connections, assert_equal, p2p_port
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INBOUND_CONNECTIONS = 5
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BLOCK_RELAY_CONNECTIONS = 2
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ONION_ADDR = "pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion:8333"
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class AnchorsTest(BitcoinTestFramework):
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@ -55,7 +58,7 @@ class AnchorsTest(BitcoinTestFramework):
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else:
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inbound_nodes_port.append(hex(int(addr_split[1]))[2:])
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self.log.info("Stop node 0")
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self.log.debug("Stop node")
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self.stop_node(0)
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# It should contain only the block-relay-only addresses
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@ -79,12 +82,64 @@ class AnchorsTest(BitcoinTestFramework):
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tweaked_contents[20:20] = b'1'
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out_file_handler.write(bytes(tweaked_contents))
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self.log.info("Start node")
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self.log.debug("Start node")
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self.start_node(0)
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self.log.info("When node starts, check if anchors.dat doesn't exist anymore")
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assert not os.path.exists(node_anchors_path)
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self.log.info("Ensure addrv2 support")
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# Use proxies to catch outbound connections to networks with 256-bit addresses
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onion_conf = Socks5Configuration()
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onion_conf.auth = True
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onion_conf.unauth = True
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onion_conf.addr = ('127.0.0.1', p2p_port(self.num_nodes))
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onion_conf.keep_alive = True
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onion_proxy = Socks5Server(onion_conf)
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onion_proxy.start()
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self.restart_node(0, extra_args=[f"-onion={onion_conf.addr[0]}:{onion_conf.addr[1]}"])
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self.log.info("Add 256-bit-address block-relay-only connections to node")
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self.nodes[0].addconnection(ONION_ADDR, 'block-relay-only')
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self.log.debug("Stop node")
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with self.nodes[0].assert_debug_log([f"DumpAnchors: Flush 1 outbound block-relay-only peer addresses to anchors.dat"]):
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self.stop_node(0)
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# Manually close keep_alive proxy connection
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onion_proxy.stop()
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self.log.info("Check for addrv2 addresses in anchors.dat")
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caddr = CAddress()
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caddr.net = CAddress.NET_TORV3
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caddr.ip, port_str = ONION_ADDR.split(":")
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caddr.port = int(port_str)
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# TorV3 addrv2 serialization:
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# time(4) | services(1) | networkID(1) | address length(1) | address(32)
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expected_pubkey = caddr.serialize_v2()[7:39].hex()
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# position of services byte of first addr in anchors.dat
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# network magic, vector length, version, nTime
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services_index = 4 + 1 + 4 + 4
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data = bytes()
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with open(node_anchors_path, "rb") as file_handler:
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data = file_handler.read()
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assert_equal(data[services_index], 0x00) # services == NONE
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anchors2 = data.hex()
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assert expected_pubkey in anchors2
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with open(node_anchors_path, "wb") as file_handler:
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# Modify service flags for this address even though we never connected to it.
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# This is necessary because on restart we will not attempt an anchor connection
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# to a host without our required services, even if its address is in the anchors.dat file
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new_data = bytearray(data)[:-32]
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new_data[services_index] = NODE_NETWORK
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new_data_hash = hash256(new_data)
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file_handler.write(new_data + new_data_hash)
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self.log.info("Restarting node attempts to reconnect to anchors")
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with self.nodes[0].assert_debug_log([f"Trying to make an anchor connection to {ONION_ADDR}"]):
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self.start_node(0, extra_args=[f"-onion={onion_conf.addr[0]}:{onion_conf.addr[1]}"])
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if __name__ == "__main__":
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AnchorsTest().main()
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@ -18,6 +18,7 @@ from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_equal
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I2P_ADDR = "c4gfnttsuwqomiygupdqqqyy5y5emnk5c73hrfvatri67prd7vyq.b32.i2p"
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ONION_ADDR = "pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion"
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ADDRS: List[CAddress] = []
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@ -37,6 +38,16 @@ class AddrReceiver(P2PInterface):
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def wait_for_addrv2(self):
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self.wait_until(lambda: "addrv2" in self.last_message)
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def calc_addrv2_msg_size(addrs):
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size = 1 # vector length byte
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for addr in addrs:
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size += 4 # time
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size += 1 # services, COMPACTSIZE(P2P_SERVICES)
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size += 1 # network id
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size += 1 # address length byte
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size += addr.ADDRV2_ADDRESS_LENGTH[addr.net] # address
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size += 2 # port
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return size
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class AddrTest(BitcoinTestFramework):
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def set_test_params(self):
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@ -48,14 +59,18 @@ class AddrTest(BitcoinTestFramework):
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for i in range(10):
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addr = CAddress()
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addr.time = int(self.mocktime) + i
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addr.port = 8333 + i
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addr.nServices = NODE_NETWORK
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# Add one I2P address at an arbitrary position.
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# Add one I2P and one onion V3 address at an arbitrary position.
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if i == 5:
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addr.net = addr.NET_I2P
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addr.ip = I2P_ADDR
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addr.port = 0
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elif i == 8:
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addr.net = addr.NET_TORV3
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addr.ip = ONION_ADDR
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else:
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addr.ip = f"123.123.123.{i % 256}"
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addr.port = 8333 + i
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ADDRS.append(addr)
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self.log.info('Create connection that sends addrv2 messages')
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@ -73,14 +88,15 @@ class AddrTest(BitcoinTestFramework):
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addr_source = self.nodes[0].add_p2p_connection(P2PInterface())
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addr_receiver = self.nodes[0].add_p2p_connection(AddrReceiver())
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msg.addrs = ADDRS
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msg_size = calc_addrv2_msg_size(ADDRS)
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with self.nodes[0].assert_debug_log([
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'received: addrv2 (159 bytes) peer=1',
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f'received: addrv2 ({msg_size} bytes) peer=1',
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]):
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addr_source.send_and_ping(msg)
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# Wait until "Added ..." before bumping mocktime to make sure addv2 is (almost) fully processed
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with self.nodes[0].assert_debug_log([
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'sending addrv2 (159 bytes) peer=2',
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f'sending addrv2 ({msg_size} bytes) peer=2',
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]):
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self.bump_mocktime(30 * 60)
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addr_receiver.wait_for_addrv2()
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@ -25,6 +25,7 @@ import random
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import socket
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import struct
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import time
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import unittest
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from test_framework.crypto.siphash import siphash256
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from test_framework.util import assert_equal
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@ -74,6 +75,9 @@ def sha256(s):
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return hashlib.sha256(s).digest()
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def sha3(s):
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return hashlib.sha3_256(s).digest()
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def hash256(s):
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return sha256(sha256(s))
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@ -249,16 +253,25 @@ class CAddress:
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# see https://github.com/bitcoin/bips/blob/master/bip-0155.mediawiki
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NET_IPV4 = 1
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NET_IPV6 = 2
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NET_TORV3 = 4
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NET_I2P = 5
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NET_CJDNS = 6
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ADDRV2_NET_NAME = {
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NET_IPV4: "IPv4",
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NET_I2P: "I2P"
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NET_IPV6: "IPv6",
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NET_TORV3: "TorV3",
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NET_I2P: "I2P",
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NET_CJDNS: "CJDNS"
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}
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ADDRV2_ADDRESS_LENGTH = {
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NET_IPV4: 4,
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NET_I2P: 32
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NET_IPV6: 16,
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NET_TORV3: 32,
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NET_I2P: 32,
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NET_CJDNS: 16
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}
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I2P_PAD = "===="
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@ -305,7 +318,7 @@ class CAddress:
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self.nServices = deser_compact_size(f)
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self.net = struct.unpack("B", f.read(1))[0]
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assert self.net in (self.NET_IPV4, self.NET_I2P)
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assert self.net in self.ADDRV2_NET_NAME
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address_length = deser_compact_size(f)
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assert address_length == self.ADDRV2_ADDRESS_LENGTH[self.net]
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@ -313,14 +326,25 @@ class CAddress:
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addr_bytes = f.read(address_length)
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if self.net == self.NET_IPV4:
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self.ip = socket.inet_ntoa(addr_bytes)
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else:
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elif self.net == self.NET_IPV6:
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self.ip = socket.inet_ntop(socket.AF_INET6, addr_bytes)
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elif self.net == self.NET_TORV3:
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prefix = b".onion checksum"
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version = bytes([3])
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checksum = sha3(prefix + addr_bytes + version)[:2]
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self.ip = b32encode(addr_bytes + checksum + version).decode("ascii").lower() + ".onion"
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elif self.net == self.NET_I2P:
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self.ip = b32encode(addr_bytes)[0:-len(self.I2P_PAD)].decode("ascii").lower() + ".b32.i2p"
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elif self.net == self.NET_CJDNS:
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self.ip = socket.inet_ntop(socket.AF_INET6, addr_bytes)
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else:
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raise Exception(f"Address type not supported")
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self.port = struct.unpack(">H", f.read(2))[0]
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def serialize_v2(self):
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"""Serialize in addrv2 format (BIP155)"""
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assert self.net in (self.NET_IPV4, self.NET_I2P)
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assert self.net in self.ADDRV2_NET_NAME
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r = b""
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r += struct.pack("<I", self.time)
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r += ser_compact_size(self.nServices)
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@ -328,10 +352,20 @@ class CAddress:
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r += ser_compact_size(self.ADDRV2_ADDRESS_LENGTH[self.net])
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if self.net == self.NET_IPV4:
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r += socket.inet_aton(self.ip)
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else:
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elif self.net == self.NET_IPV6:
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r += socket.inet_pton(socket.AF_INET6, self.ip)
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elif self.net == self.NET_TORV3:
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sfx = ".onion"
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assert self.ip.endswith(sfx)
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r += b32decode(self.ip[0:-len(sfx)], True)[0:32]
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elif self.net == self.NET_I2P:
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sfx = ".b32.i2p"
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assert self.ip.endswith(sfx)
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r += b32decode(self.ip[0:-len(sfx)] + self.I2P_PAD, True)
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elif self.net == self.NET_CJDNS:
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r += socket.inet_pton(socket.AF_INET6, self.ip)
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else:
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raise Exception(f"Address type not supported")
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r += struct.pack(">H", self.port)
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return r
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@ -2592,3 +2626,19 @@ class msg_sendtxrcncl:
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def __repr__(self):
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return "msg_sendtxrcncl(version=%lu, salt=%lu)" %\
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(self.version, self.salt)
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class TestFrameworkScript(unittest.TestCase):
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def test_addrv2_encode_decode(self):
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def check_addrv2(ip, net):
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addr = CAddress()
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addr.net, addr.ip = net, ip
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ser = addr.serialize_v2()
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actual = CAddress()
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actual.deserialize_v2(BytesIO(ser))
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self.assertEqual(actual, addr)
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check_addrv2("1.65.195.98", CAddress.NET_IPV4)
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check_addrv2("2001:41f0::62:6974:636f:696e", CAddress.NET_IPV6)
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check_addrv2("2bqghnldu6mcug4pikzprwhtjjnsyederctvci6klcwzepnjd46ikjyd.onion", CAddress.NET_TORV3)
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check_addrv2("255fhcp6ajvftnyo7bwz3an3t4a4brhopm3bamyh2iu5r3gnr2rq.b32.i2p", CAddress.NET_I2P)
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check_addrv2("fc32:17ea:e415:c3bf:9808:149d:b5a2:c9aa", CAddress.NET_CJDNS)
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@ -40,6 +40,7 @@ class Socks5Configuration():
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self.af = socket.AF_INET # Bind address family
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self.unauth = False # Support unauthenticated
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self.auth = False # Support authentication
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self.keep_alive = False # Do not automatically close connections
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class Socks5Command():
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"""Information about an incoming socks5 command."""
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@ -115,12 +116,13 @@ class Socks5Connection():
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cmdin = Socks5Command(cmd, atyp, addr, port, username, password)
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self.serv.queue.put(cmdin)
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logger.info('Proxy: %s', cmdin)
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logger.debug('Proxy: %s', cmdin)
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# Fall through to disconnect
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except Exception as e:
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logger.exception("socks5 request handling failed.")
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self.serv.queue.put(e)
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finally:
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if not self.serv.keep_alive:
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self.conn.close()
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class Socks5Server():
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@ -133,6 +135,7 @@ class Socks5Server():
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self.running = False
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self.thread = None
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self.queue = queue.Queue() # report connections and exceptions to client
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self.keep_alive = conf.keep_alive
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def run(self):
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while self.running:
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@ -157,4 +160,3 @@ class Socks5Server():
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s.connect(self.conf.addr)
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s.close()
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self.thread.join()
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@ -76,6 +76,7 @@ TEST_FRAMEWORK_MODULES = [
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"crypto.chacha20",
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"crypto.ellswift",
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"key",
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"messages",
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"crypto.muhash",
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"crypto.poly1305",
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"crypto.ripemd160",
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