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#!/usr/bin/env python3
# Copyright (c) 2015-2020 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 bitcoind with different proxy configuration.
Test plan:
- Start bitcoind's with different proxy configurations
- Use addnode to initiate connections
- Verify that proxies are connected to, and the right connection command is given
- Proxy configurations to test on bitcoind side:
- `-proxy` (proxy everything)
- `-onion` (proxy just onions)
- `-proxyrandomize` Circuit randomization
- Proxy configurations to test on proxy side,
- support no authentication (other proxy)
- support no authentication + user/pass authentication (Tor)
- proxy on IPv6
- Create various proxies (as threads)
- Create nodes that connect to them
- Manipulate the peer connections using addnode (onetry) and observe effects
- Test the getpeerinfo `network` field for the peer
addnode connect to IPv4
addnode connect to IPv6
addnode connect to onion
addnode connect to generic DNS name
- Test getnetworkinfo for each node
"""
import socket
import os
from test_framework.socks5 import Socks5Configuration, Socks5Command, Socks5Server, AddressType
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
PORT_MIN,
PORT_RANGE,
assert_equal,
)
from test_framework.netutil import test_ipv6_local
RANGE_BEGIN = PORT_MIN + 2 * PORT_RANGE # Start after p2p and rpc ports
# Networks returned by RPC getpeerinfo, defined in src/netbase.cpp::GetNetworkName()
NET_UNROUTABLE = "unroutable"
NET_IPV4 = "ipv4"
NET_IPV6 = "ipv6"
NET_ONION = "onion"
# Networks returned by RPC getnetworkinfo, defined in src/rpc/net.cpp::GetNetworksInfo()
NETWORKS = frozenset({NET_IPV4, NET_IPV6, NET_ONION})
class ProxyTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 4
self.setup_clean_chain = True
def setup_nodes(self):
self.have_ipv6 = test_ipv6_local()
# Create two proxies on different ports
# ... one unauthenticated
self.conf1 = Socks5Configuration()
self.conf1.addr = ('127.0.0.1', RANGE_BEGIN + (os.getpid() % 1000))
self.conf1.unauth = True
self.conf1.auth = False
# ... one supporting authenticated and unauthenticated (Tor)
self.conf2 = Socks5Configuration()
self.conf2.addr = ('127.0.0.1', RANGE_BEGIN + 1000 + (os.getpid() % 1000))
self.conf2.unauth = True
self.conf2.auth = True
if self.have_ipv6:
# ... one on IPv6 with similar configuration
self.conf3 = Socks5Configuration()
self.conf3.af = socket.AF_INET6
self.conf3.addr = ('::1', RANGE_BEGIN + 2000 + (os.getpid() % 1000))
self.conf3.unauth = True
self.conf3.auth = True
else:
self.log.warning("Testing without local IPv6 support")
self.serv1 = Socks5Server(self.conf1)
self.serv1.start()
self.serv2 = Socks5Server(self.conf2)
self.serv2.start()
if self.have_ipv6:
self.serv3 = Socks5Server(self.conf3)
self.serv3.start()
# Note: proxies are not used to connect to local nodes. This is because the proxy to
# use is based on CService.GetNetwork(), which returns NET_UNROUTABLE for localhost.
args = [
['-listen', '-proxy=%s:%i' % (self.conf1.addr),'-proxyrandomize=1'],
['-listen', '-proxy=%s:%i' % (self.conf1.addr),'-onion=%s:%i' % (self.conf2.addr),'-proxyrandomize=0'],
['-listen', '-proxy=%s:%i' % (self.conf2.addr),'-proxyrandomize=1'],
[]
]
if self.have_ipv6:
args[3] = ['-listen', '-proxy=[%s]:%i' % (self.conf3.addr),'-proxyrandomize=0', '-noonion']
self.add_nodes(self.num_nodes, extra_args=args)
self.start_nodes()
def network_test(self, node, addr, network):
for peer in node.getpeerinfo():
if peer["addr"] == addr:
assert_equal(peer["network"], network)
def node_test(self, node, proxies, auth, test_onion=True):
rv = []
addr = "15.61.23.23:1234"
self.log.debug("Test: outgoing IPv4 connection through node for address {}".format(addr))
node.addnode(addr, "onetry")
cmd = proxies[0].queue.get()
assert isinstance(cmd, Socks5Command)
# Note: bitcoind's SOCKS5 implementation only sends atyp DOMAINNAME, even if connecting directly to IPv4/IPv6
assert_equal(cmd.atyp, AddressType.DOMAINNAME)
assert_equal(cmd.addr, b"15.61.23.23")
assert_equal(cmd.port, 1234)
if not auth:
assert_equal(cmd.username, None)
assert_equal(cmd.password, None)
rv.append(cmd)
self.network_test(node, addr, network=NET_IPV4)
if self.have_ipv6:
addr = "[1233:3432:2434:2343:3234:2345:6546:4534]:5443"
self.log.debug("Test: outgoing IPv6 connection through node for address {}".format(addr))
node.addnode(addr, "onetry")
cmd = proxies[1].queue.get()
assert isinstance(cmd, Socks5Command)
# Note: bitcoind's SOCKS5 implementation only sends atyp DOMAINNAME, even if connecting directly to IPv4/IPv6
assert_equal(cmd.atyp, AddressType.DOMAINNAME)
assert_equal(cmd.addr, b"1233:3432:2434:2343:3234:2345:6546:4534")
assert_equal(cmd.port, 5443)
if not auth:
assert_equal(cmd.username, None)
assert_equal(cmd.password, None)
rv.append(cmd)
self.network_test(node, addr, network=NET_IPV6)
if test_onion:
addr = "bitcoinostk4e4re.onion:8333"
self.log.debug("Test: outgoing onion connection through node for address {}".format(addr))
node.addnode(addr, "onetry")
cmd = proxies[2].queue.get()
assert isinstance(cmd, Socks5Command)
assert_equal(cmd.atyp, AddressType.DOMAINNAME)
assert_equal(cmd.addr, b"bitcoinostk4e4re.onion")
assert_equal(cmd.port, 8333)
if not auth:
assert_equal(cmd.username, None)
assert_equal(cmd.password, None)
rv.append(cmd)
self.network_test(node, addr, network=NET_ONION)
addr = "node.noumenon:8333"
self.log.debug("Test: outgoing DNS name connection through node for address {}".format(addr))
node.addnode(addr, "onetry")
cmd = proxies[3].queue.get()
assert isinstance(cmd, Socks5Command)
assert_equal(cmd.atyp, AddressType.DOMAINNAME)
assert_equal(cmd.addr, b"node.noumenon")
assert_equal(cmd.port, 8333)
if not auth:
assert_equal(cmd.username, None)
assert_equal(cmd.password, None)
rv.append(cmd)
self.network_test(node, addr, network=NET_UNROUTABLE)
return rv
def run_test(self):
# basic -proxy
self.node_test(self.nodes[0], [self.serv1, self.serv1, self.serv1, self.serv1], False)
# -proxy plus -onion
self.node_test(self.nodes[1], [self.serv1, self.serv1, self.serv2, self.serv1], False)
# -proxy plus -onion, -proxyrandomize
rv = self.node_test(self.nodes[2], [self.serv2, self.serv2, self.serv2, self.serv2], True)
# Check that credentials as used for -proxyrandomize connections are unique
credentials = set((x.username,x.password) for x in rv)
assert_equal(len(credentials), len(rv))
if self.have_ipv6:
# proxy on IPv6 localhost
self.node_test(self.nodes[3], [self.serv3, self.serv3, self.serv3, self.serv3], False, False)
def networks_dict(d):
r = {}
for x in d['networks']:
r[x['name']] = x
return r
self.log.info("Test RPC getnetworkinfo")
n0 = networks_dict(self.nodes[0].getnetworkinfo())
assert_equal(NETWORKS, n0.keys())
for net in NETWORKS:
assert_equal(n0[net]['proxy'], '%s:%i' % (self.conf1.addr))
assert_equal(n0[net]['proxy_randomize_credentials'], True)
assert_equal(n0['onion']['reachable'], True)
n1 = networks_dict(self.nodes[1].getnetworkinfo())
assert_equal(NETWORKS, n1.keys())
for net in ['ipv4', 'ipv6']:
assert_equal(n1[net]['proxy'], '%s:%i' % (self.conf1.addr))
assert_equal(n1[net]['proxy_randomize_credentials'], False)
assert_equal(n1['onion']['proxy'], '%s:%i' % (self.conf2.addr))
assert_equal(n1['onion']['proxy_randomize_credentials'], False)
assert_equal(n1['onion']['reachable'], True)
n2 = networks_dict(self.nodes[2].getnetworkinfo())
assert_equal(NETWORKS, n2.keys())
for net in NETWORKS:
assert_equal(n2[net]['proxy'], '%s:%i' % (self.conf2.addr))
assert_equal(n2[net]['proxy_randomize_credentials'], True)
assert_equal(n2['onion']['reachable'], True)
if self.have_ipv6:
n3 = networks_dict(self.nodes[3].getnetworkinfo())
assert_equal(NETWORKS, n3.keys())
for net in NETWORKS:
assert_equal(n3[net]['proxy'], '[%s]:%i' % (self.conf3.addr))
assert_equal(n3[net]['proxy_randomize_credentials'], False)
assert_equal(n3['onion']['reachable'], False)
if __name__ == '__main__':
ProxyTest().main()
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