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Add Python test for -rpcbind and -rpcallowip

Add a new test, `rpcbind_test.py`, that extensively tests the new
`-rpcbind` functionality.
tags/v0.15.1
Wladimir J. van der Laan 7 years ago
parent
commit
b5ad5e783d
3 changed files with 314 additions and 4 deletions
  1. 134
    0
      qa/rpc-tests/netutil.py
  2. 152
    0
      qa/rpc-tests/rpcbind_test.py
  3. 28
    4
      qa/rpc-tests/util.py

+ 134
- 0
qa/rpc-tests/netutil.py View File

@@ -0,0 +1,134 @@
# Linux network utilities
import sys
import socket
import fcntl
import struct
import array
import os
import binascii

# Roughly based on http://voorloopnul.com/blog/a-python-netstat-in-less-than-100-lines-of-code/ by Ricardo Pascal
STATE_ESTABLISHED = '01'
STATE_SYN_SENT = '02'
STATE_SYN_RECV = '03'
STATE_FIN_WAIT1 = '04'
STATE_FIN_WAIT2 = '05'
STATE_TIME_WAIT = '06'
STATE_CLOSE = '07'
STATE_CLOSE_WAIT = '08'
STATE_LAST_ACK = '09'
STATE_LISTEN = '0A'
STATE_CLOSING = '0B'

def get_socket_inodes(pid):
'''
Get list of socket inodes for process pid.
'''
base = '/proc/%i/fd' % pid
inodes = []
for item in os.listdir(base):
target = os.readlink(os.path.join(base, item))
if target.startswith('socket:'):
inodes.append(int(target[8:-1]))
return inodes

def _remove_empty(array):
return [x for x in array if x !='']

def _convert_ip_port(array):
host,port = array.split(':')
# convert host from mangled-per-four-bytes form as used by kernel
host = binascii.unhexlify(host)
host_out = ''
for x in range(0, len(host)/4):
(val,) = struct.unpack('=I', host[x*4:(x+1)*4])
host_out += '%08x' % val

return host_out,int(port,16)

def netstat(typ='tcp'):
'''
Function to return a list with status of tcp connections at linux systems
To get pid of all network process running on system, you must run this script
as superuser
'''
with open('/proc/net/'+typ,'r') as f:
content = f.readlines()
content.pop(0)
result = []
for line in content:
line_array = _remove_empty(line.split(' ')) # Split lines and remove empty spaces.
tcp_id = line_array[0]
l_addr = _convert_ip_port(line_array[1])
r_addr = _convert_ip_port(line_array[2])
state = line_array[3]
inode = int(line_array[9]) # Need the inode to match with process pid.
nline = [tcp_id, l_addr, r_addr, state, inode]
result.append(nline)
return result

def get_bind_addrs(pid):
'''
Get bind addresses as (host,port) tuples for process pid.
'''
inodes = get_socket_inodes(pid)
bind_addrs = []
for conn in netstat('tcp') + netstat('tcp6'):
if conn[3] == STATE_LISTEN and conn[4] in inodes:
bind_addrs.append(conn[1])
return bind_addrs

# from: http://code.activestate.com/recipes/439093/
def all_interfaces():
'''
Return all interfaces that are up
'''
is_64bits = sys.maxsize > 2**32
struct_size = 40 if is_64bits else 32
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
max_possible = 8 # initial value
while True:
bytes = max_possible * struct_size
names = array.array('B', '\0' * bytes)
outbytes = struct.unpack('iL', fcntl.ioctl(
s.fileno(),
0x8912, # SIOCGIFCONF
struct.pack('iL', bytes, names.buffer_info()[0])
))[0]
if outbytes == bytes:
max_possible *= 2
else:
break
namestr = names.tostring()
return [(namestr[i:i+16].split('\0', 1)[0],
socket.inet_ntoa(namestr[i+20:i+24]))
for i in range(0, outbytes, struct_size)]

def addr_to_hex(addr):
'''
Convert string IPv4 or IPv6 address to binary address as returned by
get_bind_addrs.
Very naive implementation that certainly doesn't work for all IPv6 variants.
'''
if '.' in addr: # IPv4
addr = [int(x) for x in addr.split('.')]
elif ':' in addr: # IPv6
sub = [[], []] # prefix, suffix
x = 0
addr = addr.split(':')
for i,comp in enumerate(addr):
if comp == '':
if i == 0 or i == (len(addr)-1): # skip empty component at beginning or end
continue
x += 1 # :: skips to suffix
assert(x < 2)
else: # two bytes per component
val = int(comp, 16)
sub[x].append(val >> 8)
sub[x].append(val & 0xff)
nullbytes = 16 - len(sub[0]) - len(sub[1])
assert((x == 0 and nullbytes == 0) or (x == 1 and nullbytes > 0))
addr = sub[0] + ([0] * nullbytes) + sub[1]
else:
raise ValueError('Could not parse address %s' % addr)
return binascii.hexlify(bytearray(addr))

+ 152
- 0
qa/rpc-tests/rpcbind_test.py View File

@@ -0,0 +1,152 @@
#!/usr/bin/env python
# Copyright (c) 2014 The Bitcoin Core developers
# Distributed under the MIT/X11 software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.

# Test for -rpcbind, as well as -rpcallowip and -rpcconnect

# Add python-bitcoinrpc to module search path:
import os
import sys
sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), "python-bitcoinrpc"))

import json
import shutil
import subprocess
import tempfile
import traceback

from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException
from util import *
from netutil import *

def run_bind_test(tmpdir, allow_ips, connect_to, addresses, expected):
'''
Start a node with requested rpcallowip and rpcbind parameters,
then try to connect, and check if the set of bound addresses
matches the expected set.
'''
expected = [(addr_to_hex(addr), port) for (addr, port) in expected]
base_args = ['-disablewallet', '-nolisten']
if allow_ips:
base_args += ['-rpcallowip=' + x for x in allow_ips]
binds = ['-rpcbind='+addr for addr in addresses]
nodes = start_nodes(1, tmpdir, [base_args + binds], connect_to)
try:
pid = bitcoind_processes[0].pid
assert_equal(set(get_bind_addrs(pid)), set(expected))
finally:
stop_nodes(nodes)
wait_bitcoinds()

def run_allowip_test(tmpdir, allow_ips, rpchost):
'''
Start a node with rpcwallow IP, and request getinfo
at a non-localhost IP.
'''
base_args = ['-disablewallet', '-nolisten'] + ['-rpcallowip='+x for x in allow_ips]
nodes = start_nodes(1, tmpdir, [base_args])
try:
# connect to node through non-loopback interface
url = "http://rt:rt@%s:%d" % (rpchost, START_RPC_PORT,)
node = AuthServiceProxy(url)
node.getinfo()
finally:
node = None # make sure connection will be garbage collected and closed
stop_nodes(nodes)
wait_bitcoinds()


def run_test(tmpdir):
assert(sys.platform == 'linux2') # due to OS-specific network stats queries, this test works only on Linux
# find the first non-loopback interface for testing
non_loopback_ip = None
for name,ip in all_interfaces():
if ip != '127.0.0.1':
non_loopback_ip = ip
break
if non_loopback_ip is None:
assert(not 'This test requires at least one non-loopback IPv4 interface')
print("Using interface %s for testing" % non_loopback_ip)

# check default without rpcallowip (IPv4 and IPv6 localhost)
run_bind_test(tmpdir, None, '127.0.0.1', [],
[('127.0.0.1', 11100), ('::1', 11100)])
# check default with rpcallowip (IPv6 any)
run_bind_test(tmpdir, ['127.0.0.1'], '127.0.0.1', [],
[('::0', 11100)])
# check only IPv4 localhost (explicit)
run_bind_test(tmpdir, ['127.0.0.1'], '127.0.0.1', ['127.0.0.1'],
[('127.0.0.1', START_RPC_PORT)])
# check only IPv4 localhost (explicit) with alternative port
run_bind_test(tmpdir, ['127.0.0.1'], '127.0.0.1:32171', ['127.0.0.1:32171'],
[('127.0.0.1', 32171)])
# check only IPv4 localhost (explicit) with multiple alternative ports on same host
run_bind_test(tmpdir, ['127.0.0.1'], '127.0.0.1:32171', ['127.0.0.1:32171', '127.0.0.1:32172'],
[('127.0.0.1', 32171), ('127.0.0.1', 32172)])
# check only IPv6 localhost (explicit)
run_bind_test(tmpdir, ['[::1]'], '[::1]', ['[::1]'],
[('::1', 11100)])
# check both IPv4 and IPv6 localhost (explicit)
run_bind_test(tmpdir, ['127.0.0.1'], '127.0.0.1', ['127.0.0.1', '[::1]'],
[('127.0.0.1', START_RPC_PORT), ('::1', START_RPC_PORT)])
# check only non-loopback interface
run_bind_test(tmpdir, [non_loopback_ip], non_loopback_ip, [non_loopback_ip],
[(non_loopback_ip, START_RPC_PORT)])

# Check that with invalid rpcallowip, we are denied
run_allowip_test(tmpdir, [non_loopback_ip], non_loopback_ip)
try:
run_allowip_test(tmpdir, ['1.1.1.1'], non_loopback_ip)
assert(not 'Connection not denied by rpcallowip as expected')
except ValueError:
pass

def main():
import optparse

parser = optparse.OptionParser(usage="%prog [options]")
parser.add_option("--nocleanup", dest="nocleanup", default=False, action="store_true",
help="Leave bitcoinds and test.* datadir on exit or error")
parser.add_option("--srcdir", dest="srcdir", default="../../src",
help="Source directory containing bitcoind/bitcoin-cli (default: %default%)")
parser.add_option("--tmpdir", dest="tmpdir", default=tempfile.mkdtemp(prefix="test"),
help="Root directory for datadirs")
(options, args) = parser.parse_args()

os.environ['PATH'] = options.srcdir+":"+os.environ['PATH']

check_json_precision()

success = False
nodes = []
try:
print("Initializing test directory "+options.tmpdir)
if not os.path.isdir(options.tmpdir):
os.makedirs(options.tmpdir)
initialize_chain(options.tmpdir)

run_test(options.tmpdir)

success = True

except AssertionError as e:
print("Assertion failed: "+e.message)
except Exception as e:
print("Unexpected exception caught during testing: "+str(e))
traceback.print_tb(sys.exc_info()[2])

if not options.nocleanup:
print("Cleaning up")
wait_bitcoinds()
shutil.rmtree(options.tmpdir)

if success:
print("Tests successful")
sys.exit(0)
else:
print("Failed")
sys.exit(1)

if __name__ == '__main__':
main()

+ 28
- 4
qa/rpc-tests/util.py View File

@@ -15,6 +15,7 @@ import json
import shutil
import subprocess
import time
import re

from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException
from util import *
@@ -112,20 +113,43 @@ def initialize_chain(test_dir):
to_dir = os.path.join(test_dir, "node"+str(i))
shutil.copytree(from_dir, to_dir)

def start_nodes(num_nodes, dir):
def _rpchost_to_args(rpchost):
'''Convert optional IP:port spec to rpcconnect/rpcport args'''
if rpchost is None:
return []

match = re.match('(\[[0-9a-fA-f:]+\]|[^:]+)(?::([0-9]+))?$', rpchost)
if not match:
raise ValueError('Invalid RPC host spec ' + rpchost)

rpcconnect = match.group(1)
rpcport = match.group(2)

if rpcconnect.startswith('['): # remove IPv6 [...] wrapping
rpcconnect = rpcconnect[1:-1]

rv = ['-rpcconnect=' + rpcconnect]
if rpcport:
rv += ['-rpcport=' + rpcport]
return rv

def start_nodes(num_nodes, dir, extra_args=None, rpchost=None):
# Start bitcoinds, and wait for RPC interface to be up and running:
devnull = open("/dev/null", "w+")
for i in range(num_nodes):
datadir = os.path.join(dir, "node"+str(i))
args = [ "bitcoind", "-datadir="+datadir ]
if extra_args is not None:
args += extra_args[i]
bitcoind_processes.append(subprocess.Popen(args))
subprocess.check_call([ "bitcoin-cli", "-datadir="+datadir,
"-rpcwait", "getblockcount"], stdout=devnull)
subprocess.check_call([ "bitcoin-cli", "-datadir="+datadir] +
_rpchost_to_args(rpchost) +
["-rpcwait", "getblockcount"], stdout=devnull)
devnull.close()
# Create&return JSON-RPC connections
rpc_connections = []
for i in range(num_nodes):
url = "http://rt:rt@127.0.0.1:%d"%(START_RPC_PORT+i,)
url = "http://rt:rt@%s:%d" % (rpchost or '127.0.0.1', START_RPC_PORT+i,)
rpc_connections.append(AuthServiceProxy(url))
return rpc_connections


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