#!/usr/bin/python
#
# Copyright (C) 2010 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
"""Script for unittesting the netutils module"""
import os
import shutil
import socket
import tempfile
import unittest
import testutils
from ganeti import constants
from ganeti import errors
from ganeti import netutils
from ganeti import serializer
from ganeti import utils
def _GetSocketCredentials(path):
"""Connect to a Unix socket and return remote credentials.
"""
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
try:
sock.settimeout(10)
sock.connect(path)
return netutils.GetSocketCredentials(sock)
finally:
sock.close()
class TestGetSocketCredentials(unittest.TestCase):
def setUp(self):
self.tmpdir = tempfile.mkdtemp()
self.sockpath = utils.PathJoin(self.tmpdir, "sock")
self.listener = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
self.listener.settimeout(10)
self.listener.bind(self.sockpath)
self.listener.listen(1)
def tearDown(self):
self.listener.shutdown(socket.SHUT_RDWR)
self.listener.close()
shutil.rmtree(self.tmpdir)
def test(self):
(c2pr, c2pw) = os.pipe()
# Start child process
child = os.fork()
if child == 0:
try:
data = serializer.DumpJson(_GetSocketCredentials(self.sockpath))
os.write(c2pw, data)
os.close(c2pw)
os._exit(0)
finally:
os._exit(1)
os.close(c2pw)
# Wait for one connection
(conn, _) = self.listener.accept()
conn.recv(1)
conn.close()
# Wait for result
result = os.read(c2pr, 4096)
os.close(c2pr)
# Check child's exit code
(_, status) = os.waitpid(child, 0)
self.assertFalse(os.WIFSIGNALED(status))
self.assertEqual(os.WEXITSTATUS(status), 0)
# Check result
(pid, uid, gid) = serializer.LoadJson(result)
self.assertEqual(pid, os.getpid())
self.assertEqual(uid, os.getuid())
self.assertEqual(gid, os.getgid())
class TestHostname(unittest.TestCase):
"""Testing case for Hostname"""
def testUppercase(self):
data = "AbC.example.com"
self.assertEqual(netutils.Hostname.GetNormalizedName(data), data.lower())
def testTooLongName(self):
data = "a.b." + "c" * 255
self.assertRaises(errors.OpPrereqError,
netutils.Hostname.GetNormalizedName, data)
def testTrailingDot(self):
data = "a.b.c"
self.assertEqual(netutils.Hostname.GetNormalizedName(data + "."), data)
def testInvalidName(self):
data = [
"a b",
"a/b",
".a.b",
"a..b",
]
for value in data:
self.assertRaises(errors.OpPrereqError,
netutils.Hostname.GetNormalizedName, value)
def testValidName(self):
data = [
"a.b",
"a-b",
"a_b",
"a.b.c",
]
for value in data:
self.assertEqual(netutils.Hostname.GetNormalizedName(value), value)
class TestIPAddress(unittest.TestCase):
def testIsValid(self):
self.assert_(netutils.IPAddress.IsValid("0.0.0.0"))
self.assert_(netutils.IPAddress.IsValid("127.0.0.1"))
self.assert_(netutils.IPAddress.IsValid("::"))
self.assert_(netutils.IPAddress.IsValid("::1"))
def testNotIsValid(self):
self.assertFalse(netutils.IPAddress.IsValid("0"))
self.assertFalse(netutils.IPAddress.IsValid("1.1.1.256"))
self.assertFalse(netutils.IPAddress.IsValid("a:g::1"))
def testGetAddressFamily(self):
fn = netutils.IPAddress.GetAddressFamily
self.assertEqual(fn("127.0.0.1"), socket.AF_INET)
self.assertEqual(fn("10.2.0.127"), socket.AF_INET)
self.assertEqual(fn("::1"), socket.AF_INET6)
self.assertEqual(fn("2001:db8::1"), socket.AF_INET6)
self.assertRaises(errors.IPAddressError, fn, "0")
def testOwnLoopback(self):
# FIXME: In a pure IPv6 environment this is no longer true
self.assert_(netutils.IPAddress.Own("127.0.0.1"),
"Should own 127.0.0.1 address")
def testNotOwnAddress(self):
self.assertFalse(netutils.IPAddress.Own("2001:db8::1"),
"Should not own IP address 2001:db8::1")
self.assertFalse(netutils.IPAddress.Own("192.0.2.1"),
"Should not own IP address 192.0.2.1")
class TestIP4Address(unittest.TestCase):
def testGetIPIntFromString(self):
fn = netutils.IP4Address._GetIPIntFromString
self.assertEqual(fn("0.0.0.0"), 0)
self.assertEqual(fn("0.0.0.1"), 1)
self.assertEqual(fn("127.0.0.1"), 2130706433)
self.assertEqual(fn("192.0.2.129"), 3221226113)
self.assertEqual(fn("255.255.255.255"), 2**32 - 1)
self.assertNotEqual(fn("0.0.0.0"), 1)
self.assertNotEqual(fn("0.0.0.0"), 1)
def testIsValid(self):
self.assert_(netutils.IP4Address.IsValid("0.0.0.0"))
self.assert_(netutils.IP4Address.IsValid("127.0.0.1"))
self.assert_(netutils.IP4Address.IsValid("192.0.2.199"))
self.assert_(netutils.IP4Address.IsValid("255.255.255.255"))
def testNotIsValid(self):
self.assertFalse(netutils.IP4Address.IsValid("0"))
self.assertFalse(netutils.IP4Address.IsValid("1"))
self.assertFalse(netutils.IP4Address.IsValid("1.1.1"))
self.assertFalse(netutils.IP4Address.IsValid("255.255.255.256"))
self.assertFalse(netutils.IP4Address.IsValid("::1"))
def testInNetwork(self):
self.assert_(netutils.IP4Address.InNetwork("127.0.0.0/8", "127.0.0.1"))
def testNotInNetwork(self):
self.assertFalse(netutils.IP4Address.InNetwork("192.0.2.0/24",
"127.0.0.1"))
def testIsLoopback(self):
self.assert_(netutils.IP4Address.IsLoopback("127.0.0.1"))
def testNotIsLoopback(self):
self.assertFalse(netutils.IP4Address.IsLoopback("192.0.2.1"))
class TestIP6Address(unittest.TestCase):
def testGetIPIntFromString(self):
fn = netutils.IP6Address._GetIPIntFromString
self.assertEqual(fn("::"), 0)
self.assertEqual(fn("::1"), 1)
self.assertEqual(fn("2001:db8::1"),
42540766411282592856903984951653826561L)
self.assertEqual(fn("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"), 2**128-1)
self.assertNotEqual(netutils.IP6Address._GetIPIntFromString("::2"), 1)
def testIsValid(self):
self.assert_(netutils.IP6Address.IsValid("::"))
self.assert_(netutils.IP6Address.IsValid("::1"))
self.assert_(netutils.IP6Address.IsValid("1" + (":1" * 7)))
self.assert_(netutils.IP6Address.IsValid("ffff" + (":ffff" * 7)))
self.assert_(netutils.IP6Address.IsValid("::"))
def testNotIsValid(self):
self.assertFalse(netutils.IP6Address.IsValid("0"))
self.assertFalse(netutils.IP6Address.IsValid(":1"))
self.assertFalse(netutils.IP6Address.IsValid("f" + (":f" * 6)))
self.assertFalse(netutils.IP6Address.IsValid("fffg" + (":ffff" * 7)))
self.assertFalse(netutils.IP6Address.IsValid("fffff" + (":ffff" * 7)))
self.assertFalse(netutils.IP6Address.IsValid("1" + (":1" * 8)))
self.assertFalse(netutils.IP6Address.IsValid("127.0.0.1"))
def testInNetwork(self):
self.assert_(netutils.IP6Address.InNetwork("::1/128", "::1"))
def testNotInNetwork(self):
self.assertFalse(netutils.IP6Address.InNetwork("2001:db8::1/128", "::1"))
def testIsLoopback(self):
self.assert_(netutils.IP6Address.IsLoopback("::1"))
def testNotIsLoopback(self):
self.assertFalse(netutils.IP6Address.IsLoopback("2001:db8::1"))
class _BaseTcpPingTest:
"""Base class for TcpPing tests against listen(2)ing port"""
family = None
address = None
def setUp(self):
self.listener = socket.socket(self.family, socket.SOCK_STREAM)
self.listener.bind((self.address, 0))
self.listenerport = self.listener.getsockname()[1]
self.listener.listen(1)
def tearDown(self):
self.listener.shutdown(socket.SHUT_RDWR)
del self.listener
del self.listenerport
def testTcpPingToLocalHostAccept(self):
self.assert_(netutils.TcpPing(self.address,
self.listenerport,
timeout=constants.TCP_PING_TIMEOUT,
live_port_needed=True,
source=self.address,
),
"failed to connect to test listener")
self.assert_(netutils.TcpPing(self.address, self.listenerport,
timeout=constants.TCP_PING_TIMEOUT,
live_port_needed=True),
"failed to connect to test listener (no source)")
class TestIP4TcpPing(unittest.TestCase, _BaseTcpPingTest):
"""Testcase for IPv4 TCP version of ping - against listen(2)ing port"""
family = socket.AF_INET
address = constants.IP4_ADDRESS_LOCALHOST
def setUp(self):
unittest.TestCase.setUp(self)
_BaseTcpPingTest.setUp(self)
def tearDown(self):
unittest.TestCase.tearDown(self)
_BaseTcpPingTest.tearDown(self)
class TestIP6TcpPing(unittest.TestCase, _BaseTcpPingTest):
"""Testcase for IPv6 TCP version of ping - against listen(2)ing port"""
family = socket.AF_INET6
address = constants.IP6_ADDRESS_LOCALHOST
def setUp(self):
unittest.TestCase.setUp(self)
_BaseTcpPingTest.setUp(self)
def tearDown(self):
unittest.TestCase.tearDown(self)
_BaseTcpPingTest.tearDown(self)
class _BaseTcpPingDeafTest:
"""Base class for TcpPing tests against non listen(2)ing port"""
family = None
address = None
def setUp(self):
self.deaflistener = socket.socket(self.family, socket.SOCK_STREAM)
self.deaflistener.bind((self.address, 0))
self.deaflistenerport = self.deaflistener.getsockname()[1]
def tearDown(self):
del self.deaflistener
del self.deaflistenerport
def testTcpPingToLocalHostAcceptDeaf(self):
self.assertFalse(netutils.TcpPing(self.address,
self.deaflistenerport,
timeout=constants.TCP_PING_TIMEOUT,
live_port_needed=True,
source=self.address,
), # need successful connect(2)
"successfully connected to deaf listener")
self.assertFalse(netutils.TcpPing(self.address,
self.deaflistenerport,
timeout=constants.TCP_PING_TIMEOUT,
live_port_needed=True,
), # need successful connect(2)
"successfully connected to deaf listener (no source)")
def testTcpPingToLocalHostNoAccept(self):
self.assert_(netutils.TcpPing(self.address,
self.deaflistenerport,
timeout=constants.TCP_PING_TIMEOUT,
live_port_needed=False,
source=self.address,
), # ECONNREFUSED is OK
"failed to ping alive host on deaf port")
self.assert_(netutils.TcpPing(self.address,
self.deaflistenerport,
timeout=constants.TCP_PING_TIMEOUT,
live_port_needed=False,
), # ECONNREFUSED is OK
"failed to ping alive host on deaf port (no source)")
class TestIP4TcpPingDeaf(unittest.TestCase, _BaseTcpPingDeafTest):
"""Testcase for IPv4 TCP version of ping - against non listen(2)ing port"""
family = socket.AF_INET
address = constants.IP4_ADDRESS_LOCALHOST
def setUp(self):
self.deaflistener = socket.socket(self.family, socket.SOCK_STREAM)
self.deaflistener.bind((self.address, 0))
self.deaflistenerport = self.deaflistener.getsockname()[1]
def tearDown(self):
del self.deaflistener
del self.deaflistenerport
class TestIP6TcpPingDeaf(unittest.TestCase, _BaseTcpPingDeafTest):
"""Testcase for IPv6 TCP version of ping - against non listen(2)ing port"""
family = socket.AF_INET6
address = constants.IP6_ADDRESS_LOCALHOST
def setUp(self):
unittest.TestCase.setUp(self)
_BaseTcpPingDeafTest.setUp(self)
def tearDown(self):
unittest.TestCase.tearDown(self)
_BaseTcpPingDeafTest.tearDown(self)
class TestFormatAddress(unittest.TestCase):
"""Testcase for FormatAddress"""
def testFormatAddressUnixSocket(self):
res1 = netutils.FormatAddress(("12352", 0, 0), family=socket.AF_UNIX)
self.assertEqual(res1, "pid=12352, uid=0, gid=0")
def testFormatAddressIP4(self):
res1 = netutils.FormatAddress(("127.0.0.1", 1234), family=socket.AF_INET)
self.assertEqual(res1, "127.0.0.1:1234")
res2 = netutils.FormatAddress(("192.0.2.32", None), family=socket.AF_INET)
self.assertEqual(res2, "192.0.2.32")
def testFormatAddressIP6(self):
res1 = netutils.FormatAddress(("::1", 1234), family=socket.AF_INET6)
self.assertEqual(res1, "[::1]:1234")
res2 = netutils.FormatAddress(("::1", None), family=socket.AF_INET6)
self.assertEqual(res2, "[::1]")
res2 = netutils.FormatAddress(("2001:db8::beef", "80"),
family=socket.AF_INET6)
self.assertEqual(res2, "[2001:db8::beef]:80")
def testFormatAddressWithoutFamily(self):
res1 = netutils.FormatAddress(("127.0.0.1", 1234))
self.assertEqual(res1, "127.0.0.1:1234")
res2 = netutils.FormatAddress(("::1", 1234))
self.assertEqual(res2, "[::1]:1234")
def testInvalidFormatAddress(self):
self.assertRaises(errors.ParameterError, netutils.FormatAddress,
"127.0.0.1")
self.assertRaises(errors.ParameterError, netutils.FormatAddress,
"127.0.0.1", family=socket.AF_INET)
self.assertRaises(errors.ParameterError, netutils.FormatAddress,
("::1"), family=socket.AF_INET )
if __name__ == "__main__":
testutils.GanetiTestProgram()