Unittest

See merge request !38

demo/fixnemu.py

@@ -17,9 +17,11 @@
 # Nemu.  If not, see <http://www.gnu.org/licenses/>.
 
 import re
+import os
 from new import function
 from nemu.iproute import backticks, get_if_data, route, \
     get_addr_data, get_all_route_data, interface
+from nemu.interface import Switch, Interface
 
 def _get_all_route_data():
     ipdata = backticks([IP_PATH, "-o", "route", "list"]) # "table", "all"
@@ -69,3 +71,19 @@ def _get_addr_data():
     byidx, bynam = get_addr_data.orig()
     return byidx, {name.split('@',1)[0]: a for name, a in bynam.iteritems()}
 get_addr_data.func_code = _get_addr_data.func_code
+
+@staticmethod
+def _gen_if_name():
+    n = Interface._gen_next_id()
+    # Max 15 chars
+    # XXX: We truncate pid to not exceed IFNAMSIZ on systems with 32-bits pids
+    #      but we should find something better to avoid possible collision.
+    return "NETNSif-%.4x%.3x" % (os.getpid() % 0xffff, n)
+Interface._gen_if_name = _gen_if_name
+
+@staticmethod
+def _gen_br_name():
+    n = Switch._gen_next_id()
+     # XXX: same as for _gen_if_name
+    return "NETNSbr-%.4x%.3x" % (os.getpid() % 0xffff, n)
+Switch._gen_br_name = _gen_br_name

re6st/tests/.gitignore

+*.cert
+*.key
\ No newline at end of file

re6st/tests/README.MD

+If you clone this repo directly, you should add re6stnet to PYTHONPATH, so
+python can find module re6st
+
+To run all the tests, you have two methods: one is by creating a new user
+namespace, the other is by using root privileges.
+
+
+* `unshare -Unr bash -c "mount -t sysfs /sys & python -m unittest discover"`
+* `python -m unittest discover`
+
+The mount of /sys is because nemu will read files in /sys.
+When creating a new network namespace, the exiting network devices will not
+disappear, and a re-mount is needed to update /sys.
+
+If you want to only run the unit tests  `python -m unittest discover` is ok,
+the network tests will be skipped.

re6st/tests/__init__.py

+from pathlib2 import Path
+DEMO_PATH = Path(__file__).resolve().parent.parent.parent / "demo"

re6st/tests/registry.json

+{
+    "verbose": 1,
+    "port": 9090,
+    "anonymous_prefix_length": null,
+    "smtp_pwd": null,
+    "client_count": 10,
+    "authorized_origin": [
+        "127.0.0.1",
+        "::1"
+    ],
+    "bind6": "::",
+    "ipv4": null,
+    "prefix_length": 16,
+    "min_protocol": 1,
+    "smtp_starttls": false,
+    "run": "run",
+    "bind4": "0.0.0.0",
+    "db": "registry.db",
+    "mailhost": "miku@miku.com",
+    "encrypt": false,
+    "logfile": "registry.log",
+    "max_clients": null,
+    "smtp_user": null,
+    "same_country": null,
+    "tunnel_refresh": 300,
+    "hello": 15,
+    "community": null
+}
\ No newline at end of file

re6st/tests/test_end2end/test_registry_client.py

+
+import json
+import os
+import sqlite3
+import subprocess
+import tempfile
+import time
+import unittest
+import zlib
+
+from re6st import registry, x509
+from re6st.tests.test_network import re6st_wrap
+from re6st.tests import tools
+from re6st.tests import DEMO_PATH
+
+DH_FILE = DEMO_PATH / "dh2048.pem"
+
+class DummyNode(object):
+    """fake node to reuse Re6stRegistry
+
+    error: node.Popen has destory method which not in subprocess.Popen
+    """
+    def __init__(self):
+        self.ip = "localhost"
+        self.Popen = subprocess.Popen
+        self.pid = os.getpid()
+
+class TestRegistryClientInteract(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        re6st_wrap.initial()
+
+        # if running in net ns, set lo up
+        subprocess.check_call(("ip", "link", "set", "lo", "up"))
+
+    def setUp(self):
+        self.port = 18080
+        self.url = "http://localhost:{}/".format(self.port)
+        # not important, used in network_config check
+        self.max_clients = 10
+
+    def tearDown(self):
+        self.server.proc.terminate()
+
+    def test_1_main(self):
+        """ a client interact a server, no re6stnet node test basic function"""
+        self.server = re6st_wrap.Re6stRegistry(
+                DummyNode(),
+                "2001:db8:42::",
+                self.max_clients, port=self.port,
+                recreate=True)
+
+        client = registry.RegistryClient(self.url)
+        email = "m1@miku.com"
+
+        # simulate the process in conf
+        # request a token
+        client.requestToken(email)
+        # read token from db
+        db = sqlite3.connect(str(self.server.db), isolation_level=None)
+        token = None
+        for _ in xrange(100):
+            time.sleep(.1)
+            token = db.execute("SELECT token FROM token WHERE email=?",
+                               (email,)).fetchone()
+            if token:
+                break
+        else:
+            self.fail("Request token failed, no token in database")
+        # token: tuple[unicode,]
+        token = str(token[0])
+        self.assertEqual(client.isToken(token), "1")
+
+        # request ca
+        ca = client.getCa()
+
+        # request a cert and get cn
+        key, csr = tools.generate_csr()
+        cert = client.requestCertificate(token, csr)
+        self.assertEqual(client.isToken(token), '', "token should be deleted")
+
+        # creat x509.cert object
+        def write_to_temp(text):
+            """text: bytes"""
+            file = tempfile.NamedTemporaryFile()
+            file.write(text)
+            file.flush()
+            return file
+
+        ca, key, cert = map(write_to_temp, (ca, key, cert))
+        client.cert = x509.Cert(ca.name, key.name, cert.name)
+        ca.close()
+        cert.close()
+        # cert.decrypt use key file, close after entire test
+        self.addCleanup(key.close)
+
+        # verfiy cn and prefix
+        prefix = client.cert.prefix
+        cn = client.getNodePrefix(email)
+        self.assertEqual(tools.prefix2cn(prefix), cn)
+
+        # simulate the process in cache
+        # just prove works
+        net_config = client.getNetworkConfig(prefix)
+        net_config = json.loads(zlib.decompress(net_config))
+        self.assertEqual(net_config[u'max_clients'], self.max_clients)
+
+        # no re6stnet, empty result
+        bootpeer = client.getBootstrapPeer(prefix)
+        self.assertEqual(bootpeer, "")
+
+        # server should not die
+        self.assertIsNone(self.server.proc.poll())
+
+    #TODO with a registry and some node, test babel_dump related function
+
+if __name__ == "__main__":
+    unittest.main()

re6st/tests/test_network/.gitignore

+*.log
+temp_net_test/
\ No newline at end of file

re6st/tests/test_network/miniupnpd.conf

+clean_ruleset_interval=600
+allow 1024-65535 10.0.0.0/8 1024-65535
+deny 0-65535 0.0.0.0/0 0-65535

re6st/tests/test_network/network_build.py

+import ipaddress
+import logging
+import nemu
+import time
+import weakref
+from subprocess import PIPE
+from pathlib2 import Path
+
+from re6st.tests import DEMO_PATH
+
+fix_file = DEMO_PATH / "fixnemu.py"
+# execfile(str(fix_file)) Removed in python3
+exec(open(str(fix_file)).read())
+IPTABLES = 'iptables-nft'
+
+class ConnectableError(Exception):
+    pass
+
+class Node(nemu.Node):
+    """simple nemu.Node used for registry and nodes"""
+    def __init__(self):
+        super(Node, self).__init__()
+        self.Popen(('sysctl', '-q',
+                    'net.ipv4.icmp_echo_ignore_broadcasts=0')).wait()
+
+    def _add_interface(self, iface):
+        self.iface = iface
+        iface.__dict__['node'] = weakref.proxy(self)
+        return super(Node, self)._add_interface(iface)
+
+    @property
+    def ip(self):
+        try:
+            return str(self._ip)
+        except AttributeError:
+            # return 1 ipv4 address of the one interface, reverse mode
+            for iface in self.get_interfaces()[::-1]:
+                for addr in iface.get_addresses():
+                    addr = addr['address']
+                    if '.' in addr:
+                        #TODO different type problem?
+                        self._ip = addr
+                        return addr
+
+
+    def connect_switch(self, switch, ip, prefix_len=24):
+        self.if_s = if_s = nemu.NodeInterface(self)
+        switch.connect(if_s)
+        if_s.up = True
+        if_s.add_v4_address(ip, prefix_len=prefix_len)
+        return if_s
+
+class NetManager(object):
+    """contain all the nemu object created, so they can live more time"""
+    def __init__(self):
+        self.object = []
+        self.registries = {}
+    def connectable_test(self):
+        """test each node can ping to their registry
+        Raise:
+            AssertionError
+        """
+        for reg, nodes in self.registries.iteritems():
+            for node in nodes:
+                app0 = node.Popen(["ping", "-c", "1", reg.ip], stdout=PIPE)
+                ret = app0.wait()
+                if ret:
+                    raise ConnectableError(
+                        "network construct failed {} to {}".format(node.ip, reg.ip))
+
+        logging.debug("each node can ping to their registry")
+
+
+def net_route():
+    """build a network connect by a route(bridge)
+
+    Returns:
+        a network manager contain 3 nodes
+    """
+    nm = NetManager()
+
+    switch1 = nemu.Switch()
+    switch1.up = True
+
+    registry = Node()
+    machine1 = Node()
+    machine2 = Node()
+
+    registry.connect_switch(switch1, "192.168.1.1")
+    machine1.connect_switch(switch1, "192.168.1.2")
+    machine2.connect_switch(switch1, "192.168.1.3")
+
+    nm.object.append(switch1)
+    nm.registries[registry] = [machine1, machine2]
+
+    nm.connectable_test()
+    return nm
+
+def net_demo():
+
+    internet = Node()
+    gateway1 = Node()
+    gateway2 = Node()
+
+    registry = Node()
+    m1 = Node()
+    m2 = Node()
+    m3 = Node()
+    m4 = Node()
+    m5 = Node()
+    m6 = Node()
+    m7 = Node()
+    m8 = Node()
+
+    switch1 = nemu.Switch()
+    switch2 = nemu.Switch()
+    switch3 = nemu.Switch()
+
+    nm = NetManager()
+    nm.object = [internet, switch3, switch1, switch2, gateway1, gateway2]
+    nm.registries = {registry: [m1, m2, m3, m4, m5, m6, m7, m8]}
+
+    # for node in [g1, m3, m4, m5]:
+    #     print "pid: {}".format(node.pid)
+
+    re_if_0, in_if_0 = nemu.P2PInterface.create_pair(registry, internet)
+    g1_if_0, in_if_1 = nemu.P2PInterface.create_pair(gateway1, internet)
+    g2_if_0, in_if_2 = nemu.P2PInterface.create_pair(gateway2, internet)
+
+    re_if_0.add_v4_address(address="10.0.0.2", prefix_len=24)
+    in_if_0.add_v4_address(address='10.0.0.1', prefix_len=24)
+    in_if_1.add_v4_address(address='10.1.0.1', prefix_len=24)
+    in_if_2.add_v4_address(address='10.2.0.1', prefix_len=24)
+    g1_if_0.add_v4_address(address='10.1.0.2', prefix_len=24)
+    g2_if_0.add_v4_address(address='10.2.0.2', prefix_len=24)
+
+    for iface in [re_if_0, in_if_0, g1_if_0, in_if_1, g2_if_0, in_if_2]:
+        nm.object.append(iface)
+        iface.up = True
+
+    ip = ipaddress.ip_address(u"10.1.1.1")
+    for i, node in enumerate([gateway1, m1, m2]):
+        iface = node.connect_switch(switch1, str(ip + i))
+        nm.object.append(iface)
+        if i: # except the first
+            node.add_route(nexthop=ip)
+
+    gateway1.Popen((IPTABLES, '-t', 'nat', '-A', 'POSTROUTING', '-o', g1_if_0.name, '-j', 'MASQUERADE')).wait()
+    gateway1.Popen((IPTABLES, '-t', 'nat', '-N', 'MINIUPNPD')).wait()
+    gateway1.Popen((IPTABLES, '-t', 'nat', '-A', 'PREROUTING', '-i', g1_if_0.name, '-j', 'MINIUPNPD')).wait()
+    gateway1.Popen((IPTABLES, '-N', 'MINIUPNPD')).wait()
+
+
+    ip = ipaddress.ip_address(u"10.2.1.1")
+    for i, node in enumerate([gateway2, m3, m4, m5]):
+        iface = node.connect_switch(switch1, str(ip + i))
+        nm.object.append(iface)
+        if i: # except the first
+            node.add_route(prefix='10.0.0.0', prefix_len=8, nexthop=ip)
+
+    ip = ipaddress.ip_address(u"10.0.1.1")
+    for i, node in enumerate([internet, m6, m7, m8]):
+        iface = node.connect_switch(switch2, str(ip + i))
+        nm.object.append(iface)
+        if i: # except the first
+            node.add_route(prefix='10.0.0.0', prefix_len=8, nexthop=ip)
+
+    registry.add_route(prefix='10.0.0.0', prefix_len=8, nexthop='10.0.0.1')
+    gateway1.add_route(prefix='10.0.0.0', prefix_len=8, nexthop='10.1.0.1')
+    gateway2.add_route(prefix='10.0.0.0', prefix_len=8, nexthop='10.2.0.1')
+    internet.add_route(prefix='10.2.0.0', prefix_len=16, nexthop='10.2.0.2')
+
+    MINIUPnP_CONF = Path(__file__).parent / 'miniupnpd.conf'
+    gateway1.proc = gateway1.Popen(['miniupnpd', '-d', '-f', MINIUPnP_CONF,
+                                    '-P', 'miniupnpd.pid', '-a', gateway1.if_s.name,
+                                    '-i', g1_if_0.name],
+                                   stdout=PIPE, stderr=PIPE)
+
+    switch1.up = switch2.up = switch3.up = True
+    nm.connectable_test()
+    return nm
+
+def network_direct():
+    """one server and one client connect direct"""
+    registry = Node()
+    m0 = Node()
+    nm = NetManager()
+    nm.registries = {registry: [m0]}
+
+    re_if_0, m_if_0 = nemu.P2PInterface.create_pair(registry, m0)
+
+    registry._ip = u"10.1.2.1"
+    re_if_0.add_v4_address(u"10.1.2.1", prefix_len=24)
+
+    m_if_0.add_v4_address(u"10.1.2.2", prefix_len=24)
+    re_if_0.up = m_if_0.up = True
+
+    nm.connectable_test()
+    return nm
+
+if __name__ == "__main__":
+    nm = net_demo()
+    time.sleep(1000000)

re6st/tests/test_network/ping.py

+# -*- coding: utf-8 -*-
+'''
+Script launched on machines from the demo with the option -p/--ping
+It uses Multiping to ping several IPs passed as arguments.
+After Re6st is stable, this script logs when it does not get response from a
+machine in a csv file stored in the directory of the machine in this format:
+time, sequence number, number of non-responding machines, ip of these machines
+'''
+import argparse, errno, socket, time, sys
+from multiping import MultiPing
+
+PING_INTERVAL = 10
+PING_TIMEOUT = 4
+
+class MultiPing(MultiPing):
+    # Patch of Multiping because it stays blocked to ipv4
+    # emission when we want to ping only ipv6 addresses.
+    # So we only keep the ipv6 part for the demo.
+    # Bug issued: https://github.com/romana/multi-ping/issues/22
+    def _read_all_from_socket(self, timeout):
+        pkts = []
+        if self._ipv6_address_present:
+            try:
+                self._sock6.settimeout(timeout)
+                while True:
+                    p = self._sock6.recv(128)
+                    pkts.append((bytearray(p), time.time()))
+                    self._sock6.settimeout(0)
+            except socket.timeout:
+                pass
+            except socket.error as e:
+                if e.errno != errno.EWOULDBLOCK:
+                    raise
+        return pkts
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-a', nargs = '+', help = 'the list of addresses to ping')
+    parser.add_argument('--retry', action='store_true', help='retry ping unitl success')
+
+    args = parser.parse_args()
+    addrs = args.a
+    retry = args.retry
+    no_responses = "1"
+
+    while retry and no_responses:
+        mp = MultiPing(addrs)
+        mp.send()
+        _, no_responses = mp.receive(PING_TIMEOUT)
+
+    sys.stdout.write(" ".join(no_responses))
+
+
+if __name__ == '__main__':
+    main()

re6st/tests/test_network/re6st_wrap.py

+"""wrap the deploy of re6st node, ease the creation of cert
+file and run of the node
+"""
+import errno
+import ipaddress
+import json
+import logging
+import re
+import shutil
+import sqlite3
+import tempfile
+import time
+import weakref
+from subprocess import PIPE
+from pathlib2 import Path
+
+from re6st.tests import tools
+from re6st.tests import DEMO_PATH
+
+WORK_DIR = Path(__file__).parent / "temp_net_test"
+DH_FILE = DEMO_PATH / "dh2048.pem"
+
+RE6STNET = "python -m re6st.cli.node"
+RE6ST_REGISTRY = "python -m re6st.cli.registry"
+RE6ST_CONF = "python -m re6st.cli.conf"
+
+def initial():
+    """create the workplace"""
+    if not WORK_DIR.exists():
+        WORK_DIR.mkdir()
+
+def ip_to_serial(ip6):
+    """convert ipv6 address to serial"""
+    ip6 = ipaddress.IPv6Address(u"{}".format(ip6))
+    ip6 = "1{:x}".format(int(ip6)).rstrip('0')
+    return int(ip6, 16)
+
+
+class Re6stRegistry(object):
+    """class run a re6st-registry service on a namespace"""
+    registry_seq = 0
+
+    def __init__(self, node, ip6, client_number, port=80, recreate=False):
+        self.node = node
+        # TODO need set once
+        self.ip = node.ip
+        self.ip6 = ip6
+        self.client_number = client_number
+        self.port = port
+        self.name = self.generate_name()
+
+        self.path = WORK_DIR / self.name
+        self.ca_key = self.path / "ca.key"
+        # because re6st-conf will create ca.crt so use another name
+        self.ca_crt = self.path / "ca.cert"
+        self.log = self.path / "registry.log"
+        self.db = self.path / "registry.db"
+        self.run_path = tempfile.mkdtemp()
+
+        if recreate and self.path.exists():
+            shutil.rmtree(str(self.path))
+
+        if not self.path.exists():
+            self.create_registry()
+
+        # use hash to identify the registry
+        with self.ca_key.open() as f:
+            text = f.read()
+            self.ident = hash(text)
+
+        self.clean()
+
+        self.run()
+        # wait the servcice started
+        p = self.node.Popen(['python', '-c', """if 1:
+        import socket, time
+        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        while True:
+            try:
+                s.connect(('localhost', {}))
+                break
+            except socket.error:
+                time.sleep(.1)
+        """.format(self.port)])
+
+        now = time.time()
+        while time.time() - now < 10:
+            if p.poll() != None:
+                break
+            time.sleep(0.1)
+        else:
+            logging.error("registry failed to start, %s", self.name)
+            p.destroy()
+            raise Exception("registry failed to start")
+        logging.info("re6st service started")
+
+    @classmethod
+    def generate_name(cls):
+        cls.registry_seq += 1
+        return "registry_{}".format(cls.registry_seq)
+
+    @property
+    def url(self):
+        return "http://{ip}/".format(ip=self.ip)
+
+    def create_registry(self):
+        self.path.mkdir()
+        tools.create_ca_file(str(self.ca_key), str(self.ca_crt),
+                             serial=ip_to_serial(self.ip6))
+
+    def run(self):
+        cmd = ['--ca', self.ca_crt, '--key', self.ca_key, '--dh', DH_FILE,
+               '--ipv4', '10.42.0.0/16', '8', '--logfile', self.log, '--db', self.db,
+               '--run', self.run_path, '--hello', '4', '--mailhost', 's', '-v4',
+               '--client-count', (self.client_number+1)//2, '--port', self.port]
+
+        #PY3: convert PosixPath to str, can be remove in Python 3
+        cmd = map(str, cmd)
+
+        cmd[:0] = RE6ST_REGISTRY.split()
+
+        logging.debug("run registry %s at ns: %s with cmd: %s",
+                      self.name, self.node.pid, " ".join(cmd))
+        self.proc = self.node.Popen(cmd, stdout=PIPE, stderr=PIPE)
+
+    def clean(self):
+        """remove the file created last time"""
+        try:
+            self.log.unlink()
+        except OSError as e:
+            if e.errno != errno.ENOENT:
+                raise
+
+    def __del__(self):
+        try:
+            logging.debug("teminate process %s", self.proc.pid)
+            self.proc.destroy()
+        except:
+            pass
+
+
+class Re6stNode(object):
+    """class run a re6stnet service on a namespace"""
+    node_seq = 0
+
+    def __init__(self, node, registry, name=None, recreate=False):
+        """
+        node: nemu node
+        name: name for res6st node
+        """
+        self.name = name or self.generate_name()
+        self.node = node
+        self.registry = weakref.proxy(registry)
+
+        self.path = WORK_DIR / self.name
+        self.email = self.name + "@example.com"
+
+        if self.name == self.registry.name:
+            self.run_path = self.registry.run_path
+        else:
+            self.run_path = tempfile.mkdtemp()
+
+        self.log = self.path / "re6stnet.log"
+        self.crt = self.path / "cert.crt"
+        self.key = self.path / 'cert.key'
+        self.console = self.run_path + "/console.sock"
+        self.data_file = self.path / "data.json" # contain data for restart node
+
+        # condition, node of the registry
+        if self.name == self.registry.name:
+            self.ip6 = self.registry.ip6
+            if not self.crt.exists():
+                self.create_node()
+        else:
+            # if ca file changed, we need recreate node file
+            if self.data_file.exists():
+                with self.data_file.open() as f:
+                    data = json.load(f)
+                self.ip6 = data.get("ip6")
+                recreate = data.get('hash') != self.registry.ident
+            else:
+                recreate = True
+
+            if recreate and self.path.exists():
+                shutil.rmtree(str(self.path))
+
+            if not self.path.exists():
+                self.path.mkdir()
+                self.create_node()
+
+        logging.debug("%s's subnet is %s", self.name, self.ip6)
+
+        self.clean()
+
+    def __repr__(self):
+        return self.name
+
+    @classmethod
+    def generate_name(cls):
+        cls.node_seq += 1
+        return "node_{}".format(cls.node_seq)
+
+    def create_node(self):
+        """create necessary file for node"""
+        logging.info("create dir of node %s", self.name)
+        cmd = ["--registry", self.registry.url, '--email', self.email]
+        cmd[:0] = RE6ST_CONF.split()
+        p = self.node.Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE,
+                            cwd=str(self.path))
+        # read token
+        db = sqlite3.connect(str(self.registry.db), isolation_level=None)
+        token = None
+        for _ in xrange(100):
+            time.sleep(.1)
+            token = db.execute("SELECT token FROM token WHERE email=?",
+                               (self.email,)).fetchone()
+            if token:
+                break
+        else:
+            p.destroy()
+            raise Exception("can't connect to the Register")
+
+        out, _ = p.communicate(str(token[0]))
+        # logging.debug("re6st-conf output: {}".format(out))
+        # find the ipv6 subnet of node
+        self.ip6 = re.search('(?<=subnet: )[0-9:a-z]+', out).group(0)
+        data = {'ip6': self.ip6, 'hash': self.registry.ident}
+        with open(str(self.data_file), 'w') as f:
+            json.dump(data, f)
+        logging.info("create dir of node %s finish", self.name)
+
+    def run(self, *args):
+        """execute re6stnet"""
+        cmd = ['--log', self.path, '--run', self.run_path, '--state', self.path,
+               '--dh', DH_FILE, '--ca', self.registry.ca_crt, '--cert', self.crt,
+               '--key', self.key, '-v4', '--registry', self.registry.url,
+               '--console', self.console]
+        #PY3: same as for Re6stRegistry.run
+        cmd = map(str, cmd)
+        cmd[:0] = RE6STNET.split()
+
+        cmd += args
+        logging.debug("run node %s at ns: %s with cmd: %s",
+                      self.name, self.node.pid, " ".join(cmd))
+        # if len(args) > 4 :
+        #     self.proc = self.node.Popen(cmd)
+        # else:
+        self.proc = self.node.Popen(cmd, stdout=PIPE, stderr=PIPE)
+
+    def clean(self):
+        """remove the file created last time"""
+        for name in ["re6stnet.log", "babeld.state", "cache.db", "babeld.log"]:
+            f = self.path / name
+            try:
+                f.unlink()
+            except OSError as e:
+                if e.errno != errno.ENOENT:
+                    raise
+
+    def stop(self):
+        """stop running re6stnet process"""
+        logging.debug("%s teminate process %s", self.name, self.proc.pid)
+        self.proc.destroy()
+
+    def __del__(self):
+        """teminate process and rm temp dir"""
+        try:
+            self.stop()
+        except Exception as e:
+            logging.warning("%s: %s", self.name, e)
+
+        # re6stnet seems auto clean the tempdir
+        # try:
+        #     shutil.rmtree(self.run_path)
+        # except Exception as e:
+        #     logging.error("{}: {}".format(self.name, e))

re6st/tests/test_network/test_net.py

+"""contain ping-test for re6set net"""
+import os
+import unittest
+import time
+import psutil
+import logging
+import random
+from pathlib2 import Path
+
+import network_build
+import re6st_wrap
+
+PING_PATH = str(Path(__file__).parent.resolve() / "ping.py")
+
+def deploy_re6st(nm, recreate=False):
+    net = nm.registries
+    nodes = []
+    registries = []
+    re6st_wrap.Re6stRegistry.registry_seq = 0
+    re6st_wrap.Re6stNode.node_seq = 0
+    for registry in net:
+        reg = re6st_wrap.Re6stRegistry(registry, "2001:db8:42::", len(net[registry]),
+                                       recreate=recreate)
+        reg_node = re6st_wrap.Re6stNode(registry, reg, name=reg.name)
+        registries.append(reg)
+        reg_node.run("--gateway", "--disable-proto", "none", "--ip", registry.ip)
+        nodes.append(reg_node)
+        for m in net[registry]:
+            node = re6st_wrap.Re6stNode(m, reg)
+            node.run("-i" + m.iface.name)
+            nodes.append(node)
+    return nodes, registries
+
+def wait_stable(nodes, timeout=240):
+    """try use ping6 from each node to the other until ping success to all the
+    other nodes
+    Args:
+        timeout: int, the time for wait
+
+    return:
+        True if success
+    """
+    logging.info("wait all node stable, timeout: %s", timeout)
+    now = time.time()
+    ips = {node.ip6: node.name for node in nodes}
+    # start the ping processs
+    for node in nodes:
+        sub_ips = set(ips) - {node.ip6}
+        node.ping_proc = node.node.Popen(
+            ["python", PING_PATH, '--retry', '-a'] + list(sub_ips))
+
+    # check all the node network can ping each other, in order reverse
+    unfinished = list(nodes)
+    while unfinished:
+        for i in xrange(len(unfinished)-1, -1, -1):
+            node = unfinished[i]
+            if node.ping_proc.poll() is not None:
+                logging.debug("%s 's network is stable", node.name)
+                unfinished.pop(i)
+        time.sleep(0.5)
+
+        if time.time() - now > timeout:
+            for node in unfinished:
+                node.ping_proc.destroy()
+            logging.warning("%s  can't ping to all the nodes", unfinished)
+            return False
+    logging.info("wait time cost: %s", time.time() - now)
+    return True
+
+@unittest.skipIf(os.geteuid(), "Using root or creating a user namespace")
+class TestNet(unittest.TestCase):
+    """ network test case"""
+
+    @classmethod
+    def setUpClass(cls):
+        """create work dir"""
+        logging.basicConfig(level=logging.INFO)
+        re6st_wrap.initial()
+
+    @classmethod
+    def tearDownClass(cls):
+        """watch any process leaked after tests"""
+        logging.basicConfig(level=logging.WARNING)
+        for p in psutil.Process().children():
+            logging.debug("unterminate ps, name: %s, pid: %s, status: %s, cmd: %s",
+                          p.name(), p.pid, p.status(), p.cmdline())
+            p.terminate()
+            # try:
+            #     p.kill()
+            # except:
+            #     pass
+
+    def test_ping_router(self):
+        """create a network in a net segment, test the connectivity by ping
+        """
+        nm = network_build.net_route()
+        nodes, _ = deploy_re6st(nm)
+
+        wait_stable(nodes, 40)
+        time.sleep(10)
+
+        self.assertTrue(wait_stable(nodes, 30), " ping test failed")
+
+    @unittest.skip("usually failed due to UPnP problem")
+    def test_reboot_one_machine(self):
+        """create a network demo, wait the net stable, reboot on machine,
+        then test if network recover, this test seems always failed
+        """
+        nm = network_build.net_demo()
+        nodes, _ = deploy_re6st(nm)
+
+        wait_stable(nodes, 100)
+
+        # stop on machine randomly
+        index = int(random.random() * 7) + 1
+        machine = nodes[index]
+        machine.stop()
+        time.sleep(5)
+        machine.run("-i" + machine.node.iface.name)
+        logging.info("restart %s", machine.name)
+
+        self.assertTrue(wait_stable(nodes, 400), "network can't recover")
+
+    def test_reboot_one_machine_router(self):
+        """create a network router, wait the net stable, reboot on machine,
+        then test if network recover,
+        """
+        nm = network_build.net_route()
+        nodes, _ = deploy_re6st(nm)
+
+        wait_stable(nodes, 40)
+
+        # stop on machine randomly
+        index = int(random.random() * 2) + 1
+        machine = nodes[index]
+        machine.stop()
+        time.sleep(5)
+        machine.run("-i" + machine.node.iface.name)
+        logging.info("restart %s", machine.name)
+
+        self.assertTrue(wait_stable(nodes, 100), "network can't recover")
+
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.DEBUG, filename='test.log', filemode='w',
+                        format='%(asctime)s %(levelname)s %(message)s',
+                        datefmt='%I:%M:%S')
+    unittest.main(verbosity=3)

re6st/tests/test_unit/__init__.py

+"""Re6st unittest module
+"""
\ No newline at end of file

re6st/tests/test_unit/test_conf.py

+#!/usr/bin/python2
+""" unit test for re6st-conf
+"""
+
+import os
+import sys
+import unittest
+from shutil import rmtree
+from StringIO import StringIO
+from mock import patch
+from OpenSSL import crypto
+
+from re6st.cli import conf
+from re6st.tests.tools import generate_cert, serial2prefix, create_ca_file
+
+
+# gloable value from conf.py
+conf_path = 're6stnet.conf'
+ca_path = 'ca.crt'
+cert_path = 'cert.crt'
+key_path = 'cert.key'
+
+# TODO test for is needed
+
+class TestConf(unittest.TestCase):
+    """ Unit test case for re6st-conf"""
+
+    @classmethod
+    def setUpClass(cls):
+        # because conf will change directory
+        cls.origin_dir = os.getcwd()
+        cls.work_dir = "temp"
+
+        if not os.path.exists(cls.work_dir):
+            os.makedirs(cls.work_dir)
+
+        # mocked server cert and pkey
+        cls.pkey, cls.cert = create_ca_file(os.devnull, os.devnull)
+        cls.fingerprint = "".join( cls.cert.digest("sha1").split(":"))
+        # client.getCa should return a string form cert
+        cls.cert = crypto.dump_certificate(crypto.FILETYPE_PEM, cls.cert)
+
+        cls.command = "re6st-conf --registry http://localhost/" \
+            " --dir %s" % cls.work_dir
+
+        cls.serial = 0
+
+        cls.stdout = sys.stdout
+        cls.null = open(os.devnull, 'w')
+        sys.stdout = cls.null
+
+
+    @classmethod
+    def tearDownClass(cls):
+        # remove work directory
+        rmtree(cls.work_dir)
+        cls.null.close()
+        sys.stdout = cls.stdout
+
+    def setUp(self):
+        patcher = patch("re6st.registry.RegistryClient")
+        self.addCleanup(patcher.stop)
+        self.client = patcher.start()()
+
+        self.client.getCa.return_value = self.cert
+        prefix = serial2prefix(self.serial)
+        self.client.requestCertificate.side_effect = \
+            lambda _, req: generate_cert(self.cert, self.pkey, req, prefix, self.serial)
+        self.serial += 1
+
+    def tearDown(self):
+        # go back to original dir
+        os.chdir(self.origin_dir)
+
+    @patch("__builtin__.raw_input")
+    def test_basic(self, mock_raw_input):
+        """ go through all the step
+            getCa, requestToken, requestCertificate
+        """
+        mail = "example@email.com"
+        token = "a_token"
+        mock_raw_input.side_effect = [mail, token]
+        command = self.command \
+            + " --fingerprint sha1:%s" % self.fingerprint \
+            + " --req L lille"
+        sys.argv = command.split()
+
+        conf.main()
+
+        self.client.requestToken.assert_called_once_with(mail)
+        self.assertEqual(self.client.requestCertificate.call_args[0][0],
+                         token)
+        # created file part
+        self.assertTrue(os.path.exists(ca_path))
+        self.assertTrue(os.path.exists(key_path))
+        self.assertTrue(os.path.exists(cert_path))
+        self.assertTrue(os.path.exists(conf_path))
+
+    def test_fingerprint_mismatch(self):
+        """ wrong fingerprint with same size,
+        """
+        command = self.command \
+            + " --fingerprint sha1:a1861330f1299b98b529fa52c3d8e5d1a94dc000"
+        sys.argv = command.split()
+
+        with self.assertRaises(SystemExit) as e:
+            conf.main()
+
+        self.assertIn("fingerprint doesn't match", str(e.exception))
+
+    def test_ca_only(self):
+        """ only create ca file and exit
+        """
+        command = self.command + " --ca-only"
+        sys.argv = command.split()
+
+        with self.assertRaises(SystemExit):
+            conf.main()
+
+        self.assertTrue(os.path.exists(ca_path))
+
+    def test_anonymous(self):
+        """ with args anonymous, so script will use '' as token
+        """
+        command = self.command + " --anonymous"
+        sys.argv = command.split()
+
+        conf.main()
+
+        self.assertEqual(self.client.requestCertificate.call_args[0][0],
+                         '')
+
+    def test_anonymous_failed(self):
+        """ with args anonymous and token, so script will failed
+        """
+        command = self.command + " --anonymous" \
+            + " --token a"
+        sys.argv = command.split()
+        text = StringIO()
+        old_err = sys.stderr
+        sys.stderr = text
+
+        with self.assertRaises(SystemExit):
+            conf.main()
+
+        # check the error message
+        self.assertIn("anonymous conflicts", text.getvalue())
+
+        sys.stderr = old_err
+
+    def test_req_reserved(self):
+        """ with args req, but contain reserved value
+        """
+        command = self.command + " --req CN 1111"
+        sys.argv = command.split()
+
+        with self.assertRaises(SystemExit) as e:
+            conf.main()
+
+        self.assertIn("CN field", str(e.exception))
+
+    def test_get_null_cert(self):
+        """ simulate fake token, and get null cert
+        """
+        command = self.command + " --token a"
+        sys.argv = command.split()
+        self.client.requestCertificate.side_effect = "",
+
+        with self.assertRaises(SystemExit) as e:
+            conf.main()
+
+        self.assertIn("invalid or expired token", str(e.exception))
+
+
+if __name__ == "__main__":
+    unittest.main()

re6st/tests/test_unit/test_registry_client.py

+import sys
+import os
+import unittest
+import hmac
+import httplib
+import base64
+import hashlib
+from mock import Mock, patch
+
+from re6st import registry
+
+class TestRegistryClient(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        server_url = "http://10.0.0.2/"
+        cls.client = registry.RegistryClient(server_url)
+        cls.client._conn = Mock()
+
+    def test_init(self):
+        url1 = "https://localhost/example/"
+        url2 = "http://10.0.0.2/"
+
+        client1 = registry.RegistryClient(url1)
+        client2 = registry.RegistryClient(url2)
+
+        self.assertEqual(client1._path, "/example")
+        self.assertEqual(client1._conn.host, "localhost")
+        self.assertIsInstance(client1._conn, httplib.HTTPSConnection)
+        self.assertIsInstance(client2._conn, httplib.HTTPConnection)
+
+    def test_rpc_hello(self):
+        prefix = "0000000011111111"
+        protocol = "7"
+        body = "a_hmac_key"
+        query = "/hello?client_prefix=0000000011111111&protocol=7"
+        response = fakeResponse(body, httplib.OK)
+        self.client._conn.getresponse.return_value = response
+
+        res = self.client.hello(prefix, protocol)
+
+        self.assertEqual(res, body)
+        conn = self.client._conn
+        conn.putrequest.assert_called_once_with('GET', query, skip_accept_encoding=1)
+        conn.close.assert_not_called()
+        conn.endheaders.assert_called_once()
+
+    def test_rpc_with_cn(self):
+        query = "/getNetworkConfig?cn=0000000011111111"
+        cn =  "0000000011111111"
+        # hmac part
+        self.client._hmac = None
+        self.client.hello = Mock(return_value = "aaabbb")
+        self.client.cert = Mock()
+        key = "this_is_a_key"
+        self.client.cert.decrypt.return_value = key
+        h = hmac.HMAC(key, query, hashlib.sha1).digest()
+        key = hashlib.sha1(key).digest()
+        # response part
+        body = None
+        response = fakeResponse(body, httplib.NO_CONTENT)
+        response.msg = dict(Re6stHMAC=hmac.HMAC(key, body, hashlib.sha1).digest())
+        self.client._conn.getresponse.return_value = response
+
+        res = self.client.getNetworkConfig(cn)
+
+        self.client.cert.verify.assert_called_once_with("bbb", "aaa")
+        self.assertEqual(self.client._hmac, hashlib.sha1(key).digest())
+        conn = self.client._conn
+        conn.putheader.assert_called_with("Re6stHMAC", base64.b64encode(h))
+        conn.close.assert_called_once()
+        self.assertEqual(res, body)
+
+
+class fakeResponse:
+
+    def __init__(self, body, status, reason = None):
+        self.body = body
+        self.status = status
+        self.reason = reason
+
+    def read(self):
+        return self.body
+
+
+if __name__ ==  "__main__":
+    unittest.main()

re6st/tests/test_unit/test_tunnel/test_base_tunnel_manager.py

+#!/usr/bin/python2
+import os
+import sys
+import unittest
+import time
+from mock import patch, Mock
+
+
+from re6st import tunnel
+from re6st import x509
+from re6st import cache
+
+from re6st.tests import tools
+
+class testBaseTunnelManager(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        ca_key, ca = tools.create_ca_file("ca.key", "ca.cert")
+        tools.create_cert_file("node.key", "node.cert", ca, ca_key, "00000001", 1)
+        cls.cert = x509.Cert("ca.cert", "node.key", "node.cert")
+        cls.control_socket = "babeld.sock"
+
+
+    def setUp(self):
+        patcher = patch("re6st.cache.Cache")
+        pacher_sock = patch("socket.socket")
+        self.addCleanup(patcher.stop)
+        self.addCleanup(pacher_sock.stop)
+        self.cache = patcher.start()()
+        self.sock = pacher_sock.start()
+        self.cache.same_country = False
+
+        address = [(2, [('10.0.0.2', '1194', 'udp'), ('10.0.0.2', '1194', 'tcp')])]
+        self.tunnel = tunnel.BaseTunnelManager(self.control_socket,
+            self.cache, self.cert, None, address)
+
+    def tearDown(self):
+        self.tunnel.close()
+        del self.tunnel
+
+    #TODO selectTimeout in contain callback, removing, update
+
+    @patch("re6st.tunnel.BaseTunnelManager.selectTimeout")
+    def test_invalidatePeers(self, selectTimeout):
+        """normal case, stop_date: p2 < now < p1 < p3
+        expect:
+            _peers ->  [p1, p3]
+            next = p1.stoptime
+        """
+        p1 = x509.Peer("00")
+        p2 = x509.Peer("01")
+        p3 = x509.Peer("10")
+        p1.stop_date = time.time() + 1000
+        p2.stop_date = 1
+        p3.stop_date = p1.stop_date + 500
+        self.tunnel._peers = [p1, p2, p3]
+
+        self.tunnel.invalidatePeers()
+
+        self.assertEqual(self.tunnel._peers, [p1, p3])
+        selectTimeout.assert_called_once_with(p1.stop_date, self.tunnel.invalidatePeers)
+
+
+    # Because _makeTunnel is defined in sub class of BaseTunnelManager, so i comment
+    # the follow test
+    # @patch("re6st.tunnel.BaseTunnelManager._makeTunnel", create=True)
+    # def test_processPacket_address_with_msg_peer(self, makeTunnel):
+    #     """code is 1, peer and msg not none """
+    #     c = chr(1)
+    #     msg = "address"
+    #     peer = x509.Peer("000001")
+    #     self.tunnel._connecting = {peer}
+
+    #     self.tunnel._processPacket(c + msg, peer)
+
+    #     self.cache.addPeer.assert_called_once_with(peer, msg)
+    #     self.assertFalse(self.tunnel._connecting)
+    #     makeTunnel.assert_called_once_with(peer, msg)
+
+
+    def test_processPacket_address(self):
+        """code is 1, for address. And peer or msg are none"""
+        c = chr(1)
+        self.tunnel._address = {1: "1,1", 2: "2,2"}
+
+        res = self.tunnel._processPacket(c)
+
+        self.assertEqual(res, "1,1;2,2")
+
+
+    def test_processPacket_address_with_peer(self):
+        """code is 1, peer is not none, msg is none
+        in my opion, this function return address in form address,port,portocl
+        and each address join by ;
+        it will truncate address which has more than 3 element
+        """
+        c = chr(1)
+        peer = x509.Peer("000001")
+        peer.protocol = 1
+        self.tunnel._peers.append(peer)
+        self.tunnel._address = {1: "1,1,1;0,0,0", 2: "2,2,2,2"}
+
+        res = self.tunnel._processPacket(c, peer)
+
+        self.assertEqual(res, "1,1,1;0,0,0;2,2,2")
+
+    @patch("re6st.x509.Cert.verifyVersion", Mock(return_value=True))
+    @patch("re6st.tunnel.BaseTunnelManager.selectTimeout")
+    def test_processPacket_version(self, selectTimeout):
+        """code is 0, for network version, peer is not none
+        2 case, one modify the version, one not
+        """
+        c = chr(0)
+        peer = x509.Peer("000001")
+        version1 = "00003"
+        version2 = "00007"
+        self.tunnel._version = version3 = "00005"
+        self.tunnel._peers.append(peer)
+
+        res = self.tunnel._processPacket(c + version1, peer)
+        self.tunnel._processPacket(c + version2, peer)
+
+        self.assertEqual(res, version3)
+        self.assertEqual(self.tunnel._version, version2)
+        self.assertEqual(peer.version, version2)
+        self.assertEqual(selectTimeout.call_args[0][1], self.tunnel.newVersion)
+
+
+
+
+if __name__ == "__main__":
+    unittest.main()
+
+

re6st/tests/test_unit/test_tunnel/test_multi_gateway_manager.py

+#!/usr/bin/python2
+import os
+import sys
+import unittest
+from mock import patch
+
+from re6st import tunnel
+
+
+class testMultGatewayManager(unittest.TestCase):
+    
+    def setUp(self):
+        self.manager = tunnel.MultiGatewayManager(lambda x:x+x)
+        patcher = patch("subprocess.check_call")
+        self.addCleanup(patcher.stop)
+        self.sub = patcher.start()
+
+    @patch("logging.trace", create=True)
+    def test_add(self, log_trace):
+        """add new dest twice"""
+        dest = "dest"
+
+        self.manager.add(dest, True)
+        self.manager.add(dest, True)
+
+        self.assertEqual(self.manager[dest][1], 1)
+        self.sub.assert_called_once()
+        cmd = log_trace.call_args[0][1]
+        self.assertIn(dest+dest, cmd)
+        self.assertIn("add", cmd)
+
+
+    def test_add_null_route(self):
+        """ add two dest which don't call ip route"""
+        dest1 = "dest1"
+        dest2 = ""
+
+        self.manager.add(dest1, False)
+        self.manager.add(dest2, True)
+
+        self.sub.assert_not_called()
+
+
+    @patch("logging.trace", create=True)
+    def test_remove(self, log_trace):
+        "remove a dest twice"
+        dest = "dest"
+        gw = "gw"
+        self.manager[dest] = [gw,1]
+
+        self.manager.remove(dest)
+        self.assertEqual(self.manager[dest][1], 0)
+
+        self.manager.remove(dest)
+
+        self.sub.assert_called_once()
+        self.assertIsNone(self.manager.get(dest))
+        cmd = log_trace.call_args[0][1]
+        self.assertIn(gw, cmd)
+        self.assertIn("del", cmd)
+        
+    
+    def test_remove_null_gw(self):
+        """ remove a dest which don't have gw"""
+        dest = "dest"
+        gw = ""
+        self.manager[dest] = [gw, 0]
+
+        self.manager.remove(dest)
+        
+        self.assertIsNone(self.manager.get(dest))
+        self.sub.assert_not_called()
+
+
+if __name__ == "__main__":
+    unittest.main()
\ No newline at end of file

re6st/tests/tools.py

+import sys
+import os
+import time
+import subprocess
+from OpenSSL import crypto
+
+from re6st import registry
+
+
+def generate_csr():
+    """generate a certificate request
+
+    return:
+        crypto.Pekey and crypto.X509Req  both in pem format
+    """
+    key = crypto.PKey()
+    key.generate_key(crypto.TYPE_RSA, 2048)
+    req = crypto.X509Req()
+    req.set_pubkey(key)
+    req.get_subject().CN = "test ca"
+    req.sign(key, 'sha256')
+    csr = crypto.dump_certificate_request(crypto.FILETYPE_PEM, req)
+    pkey = crypto.dump_privatekey(crypto.FILETYPE_PEM, key)
+    return pkey, csr
+
+
+def generate_cert(ca, ca_key, csr, prefix, serial, not_after=None):
+    """generate a certificate
+
+    return
+        crypto.X509Cert in pem format
+    """
+    if type(ca) is str:
+        ca = crypto.load_certificate(crypto.FILETYPE_PEM, ca)
+    if type(ca_key) is str:
+        ca_key = crypto.load_privatekey(crypto.FILETYPE_PEM, ca_key)
+    req = crypto.load_certificate_request(crypto.FILETYPE_PEM, csr)
+
+    cert = crypto.X509()
+    cert.gmtime_adj_notBefore(0)
+    if not_after:
+        cert.set_notAfter(
+            time.strftime("%Y%m%d%H%M%SZ", time.gmtime(not_after)))
+    else:
+        cert.gmtime_adj_notAfter(registry.RegistryServer.cert_duration)
+    subject = req.get_subject()
+    if prefix:
+        subject.CN = prefix2cn(prefix)
+    cert.set_subject(req.get_subject())
+    cert.set_issuer(ca.get_subject())
+    cert.set_pubkey(req.get_pubkey())
+    cert.set_serial_number(serial)
+    cert.sign(ca_key, 'sha512')
+    return crypto.dump_certificate(crypto.FILETYPE_PEM, cert)
+
+def create_cert_file(pkey_file, cert_file, ca, ca_key, prefix, serial):
+    pkey, csr = generate_csr()
+    cert = generate_cert(ca, ca_key, csr, prefix, serial)
+    with open(pkey_file, 'w') as f:
+        f.write(pkey)
+    with open(cert_file, 'w') as f:
+        f.write(cert)
+
+    return pkey, cert
+
+
+
+def create_ca_file(pkey_file, cert_file, serial=0x120010db80042):
+    """create key and ca file with specify name
+    return key, cert in pem format """
+    key = crypto.PKey()
+    key.generate_key(crypto.TYPE_RSA, 2048)
+    cert = crypto.X509()
+    cert.gmtime_adj_notBefore(0)
+    cert.gmtime_adj_notAfter(registry.RegistryServer.cert_duration)
+    subject= cert.get_subject()
+    subject.C = "FR"
+    subject.ST = "Lille"
+    subject.L = "Lille"
+    subject.O = "nexedi"
+    subject.CN = "TEST-CA"
+    cert.set_issuer(cert.get_subject())
+    cert.set_serial_number(serial)
+    cert.set_pubkey(key)
+    cert.sign(key, "sha512")
+
+    with open(pkey_file, 'w') as pkey_file:
+        pkey_file.write(crypto.dump_privatekey(crypto.FILETYPE_PEM, key))
+    with open(cert_file, 'w') as cert_file:
+        cert_file.write(crypto.dump_certificate(crypto.FILETYPE_PEM, cert))
+
+    return key, cert
+
+
+def prefix2cn(prefix):
+    return "%u/%u" % (int(prefix, 2), len(prefix))
+
+def serial2prefix(serial):
+    return bin(serial)[2:].rjust(16, '0')
+
+# pkey: private key
+def decrypt(pkey, incontent):
+    with open("node.key", 'w') as f:
+        f.write(pkey)
+    args = "openssl rsautl -decrypt -inkey node.key".split()
+    p = subprocess.Popen(
+        args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    outcontent, err = p.communicate(incontent)
+    return outcontent

setup.py

@@ -95,6 +95,7 @@ setup(
     extras_require = {
         'geoip': ['geoip2'],
         'multicast': ['PyYAML'],
+        'test': ['mock', 'pathlib2', 'nemu', 'multiping']
     },
     #dependency_links = [
     #    "http://miniupnp.free.fr/files/download.php?file=miniupnpc-1.7.20120714.tar.gz#egg=miniupnpc-1.7",