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#!/usr/bin/env python
# vim:ts=4:sw=4:et:ai:sts=4
import grp, os, pwd, select, time, unittest
import nemu, test_util
class TestConfigure(unittest.TestCase):
def test_config_run_as_static(self):
# Don't allow root as default user
self.assertRaises(AttributeError, setattr, nemu.config,
'run_as', 'root')
self.assertRaises(AttributeError, setattr, nemu.config,
'run_as', 0)
# Don't allow invalid users
self.assertRaises(AttributeError, setattr, nemu.config,
'run_as', 'foobarbaz') # hope nobody has this user!
self.assertRaises(AttributeError, setattr, nemu.config,
'run_as', 65536)
try:
pwd.getpwnam('nobody')
nemu.config.run_as('nobody')
self.assertEquals(nemu.config.run_as, 'nobody')
except:
pass
class TestGlobal(unittest.TestCase):
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
def test_run_ping_p2pif(self):
n1 = nemu.Node()
n2 = nemu.Node()
i1, i2 = nemu.P2PInterface.create_pair(n1, n2)
i1.up = i2.up = True
i1.lladdr = 'd6:4b:3f:f7:ff:7e'
i2.lladdr = 'd6:4b:3f:f7:ff:7f'
i1.add_v4_address('10.0.0.1', 24)
i2.add_v4_address('10.0.0.2', 24)
null = file('/dev/null', 'wb')
a1 = n1.Popen(['ping', '-qc1', '10.0.0.2'], stdout = null)
a2 = n2.Popen(['ping', '-qc1', '10.0.0.1'], stdout = null)
self.assertEquals(a1.wait(), 0)
self.assertEquals(a2.wait(), 0)
# Test ipv6 autoconfigured addresses
time.sleep(2) # Wait for autoconfiguration
a1 = n1.Popen(['ping6', '-qc1', '-I', i1.name,
'fe80::d44b:3fff:fef7:ff7f'], stdout = null)
a2 = n2.Popen(['ping6', '-qc1', '-I', i2.name,
'fe80::d44b:3fff:fef7:ff7e'], stdout = null)
self.assertEquals(a1.wait(), 0)
self.assertEquals(a2.wait(), 0)
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
def test_run_ping_node_if(self):
n1 = nemu.Node()
n2 = nemu.Node()
i1 = n1.add_if()
i2 = n2.add_if()
i1.up = i2.up = True
l = nemu.Switch()
l.connect(i1)
l.connect(i2)
l.up = True
i1.add_v4_address('10.0.0.1', 24)
i2.add_v4_address('10.0.0.2', 24)
null = file('/dev/null', 'wb')
a1 = n1.Popen(['ping', '-qc1', '10.0.0.2'], stdout = null)
a2 = n2.Popen(['ping', '-qc1', '10.0.0.1'], stdout = null)
self.assertEquals(a1.wait(), 0)
self.assertEquals(a2.wait(), 0)
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
def test_run_ping_routing_p2p(self):
n1 = nemu.Node()
n2 = nemu.Node()
n3 = nemu.Node()
i12, i21 = nemu.P2PInterface.create_pair(n1, n2)
i23, i32 = nemu.P2PInterface.create_pair(n2, n3)
i12.up = i21.up = i23.up = i32.up = True
i12.add_v4_address('10.0.0.1', 24)
i21.add_v4_address('10.0.0.2', 24)
i23.add_v4_address('10.0.1.1', 24)
i32.add_v4_address('10.0.1.2', 24)
n1.add_route(prefix = '10.0.1.0', prefix_len = 24,
nexthop = '10.0.0.2')
n3.add_route(prefix = '10.0.0.0', prefix_len = 24,
nexthop = '10.0.1.1')
null = file('/dev/null', 'wb')
a1 = n1.Popen(['ping', '-qc1', '10.0.1.2'], stdout = null)
a2 = n3.Popen(['ping', '-qc1', '10.0.0.1'], stdout = null)
self.assertEquals(a1.wait(), 0)
self.assertEquals(a2.wait(), 0)
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
def test_run_ping_routing(self):
n1 = nemu.Node()
n2 = nemu.Node()
n3 = nemu.Node()
i1 = n1.add_if()
i2a = n2.add_if()
i2b = n2.add_if()
i3 = n3.add_if()
i1.up = i2a.up = i2b.up = i3.up = True
l1 = nemu.Switch()
l2 = nemu.Switch()
l1.connect(i1)
l1.connect(i2a)
l2.connect(i2b)
l2.connect(i3)
l1.up = l2.up = True
i1.add_v4_address('10.0.0.1', 24)
i2a.add_v4_address('10.0.0.2', 24)
i2b.add_v4_address('10.0.1.1', 24)
i3.add_v4_address('10.0.1.2', 24)
n1.add_route(prefix = '10.0.1.0', prefix_len = 24,
nexthop = '10.0.0.2')
n3.add_route(prefix = '10.0.0.0', prefix_len = 24,
nexthop = '10.0.1.1')
null = file('/dev/null', 'wb')
a1 = n1.Popen(['ping', '-qc1', '10.0.1.2'], stdout = null)
a2 = n3.Popen(['ping', '-qc1', '10.0.0.1'], stdout = null)
self.assertEquals(a1.wait(), 0)
self.assertEquals(a2.wait(), 0)
def _forward_packets(self, subproc, if1, if2):
while(True):
ready = select.select([if1.fd, if2.fd], [], [], 0.1)[0]
if ready:
s = os.read(ready[0], 65536)
if ready[0] == if1.fd:
os.write(if2.fd, s)
else:
os.write(if1.fd, s)
if not s:
break
if subproc.poll() != None:
break
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
def test_run_ping_tun(self):
"""This test simulates a point to point connection between two hosts
using two tun devices."""
n1 = nemu.Node()
n2 = nemu.Node()
# Use PI, so that's tested too.
tun1 = n1.add_tun(use_pi = True)
tun2 = n2.add_tun(use_pi = True)
tun1.up = tun2.up = True
tun1.add_v4_address('10.0.1.1', 24)
tun2.add_v4_address('10.0.1.2', 24)
null = file('/dev/null', 'wb')
a = n1.Popen(['ping', '-qc1', '10.0.1.2'], stdout = null)
self._forward_packets(a, tun1, tun2)
self.assertEquals(a.wait(), 0)
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
def test_run_ping_tap(self):
"""This test simulates a point to point connection between two hosts
using two tap devices."""
n1 = nemu.Node()
n2 = nemu.Node()
tap1 = n1.add_tap()
tap2 = n2.add_tap()
tap1.up = tap2.up = True
tap1.add_v4_address('10.0.1.1', 24)
tap2.add_v4_address('10.0.1.2', 24)
null = file('/dev/null', 'wb')
a = n1.Popen(['ping', '-qc1', '10.0.1.2'], stdout = null)
self._forward_packets(a, tap1, tap2)
self.assertEquals(a.wait(), 0)
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
def test_run_ping_tap_routing(self):
"""This test simulates a point to point connection between two hosts
using two tap devices, and normal connections with other two, to use
routing."""
n1 = nemu.Node()
n2 = nemu.Node()
n3 = nemu.Node()
n4 = nemu.Node()
i1 = n1.add_if()
i2 = n2.add_if()
tap1 = n2.add_tap()
tap2 = n3.add_tap()
i3 = n3.add_if()
i4 = n4.add_if()
i1.up = i2.up = tap1.up = tap2.up = i3.up = i4.up = True
l1 = nemu.Switch()
l2 = nemu.Switch()
l1.connect(i1)
l1.connect(i2)
l2.connect(i3)
l2.connect(i4)
l1.up = l2.up = True
i1.add_v4_address('10.0.0.1', 24)
i2.add_v4_address('10.0.0.2', 24)
tap1.add_v4_address('10.0.1.1', 24)
tap2.add_v4_address('10.0.1.2', 24)
i3.add_v4_address('10.0.2.1', 24)
i4.add_v4_address('10.0.2.2', 24)
n1.add_route(prefix = '10.0.1.0', prefix_len = 24, nexthop = '10.0.0.2')
n1.add_route(prefix = '10.0.2.0', prefix_len = 24, nexthop = '10.0.0.2')
n2.add_route(prefix = '10.0.2.0', prefix_len = 24, nexthop = '10.0.1.2')
n3.add_route(prefix = '10.0.0.0', prefix_len = 24, nexthop = '10.0.1.1')
n4.add_route(prefix = '10.0.1.0', prefix_len = 24, nexthop = '10.0.2.1')
n4.add_route(prefix = '10.0.0.0', prefix_len = 24, nexthop = '10.0.2.1')
null = file('/dev/null', 'wb')
a = n1.Popen(['ping', '-qc1', '10.0.2.2'], stdout = null)
self._forward_packets(a, tap1, tap2)
self.assertEquals(a.wait(), 0)
class TestX11(unittest.TestCase):
@test_util.skipUnless("DISPLAY" in os.environ, "Test requires working X11")
@test_util.skipUnless(nemu.environ.XDPYINFO_PATH, "Test requires xdpyinfo")
def test_run_xdpyinfo(self):
xdpy = nemu.environ.XDPYINFO_PATH
info = nemu.environ.backticks([xdpy])
# remove first line, contains the display name
info = info.partition("\n")[2]
n = nemu.Node(nonetns = True, forward_X11 = True)
info2 = n.backticks([xdpy])
info2 = info2.partition("\n")[2]
self.assertEquals(info, info2)
@test_util.skipUnless(os.getuid() == 0, "Test requires root privileges")
@test_util.skipUnless("DISPLAY" in os.environ, "Test requires working X11")
@test_util.skipUnless(nemu.environ.XDPYINFO_PATH, "Test requires xdpyinfo")
def test_run_xdpyinfo_netns(self):
xdpy = nemu.environ.XDPYINFO_PATH
info = nemu.environ.backticks([xdpy])
# remove first line, contains the display name
info = info.partition("\n")[2]
n = nemu.Node(forward_X11 = True)
info2 = n.backticks([xdpy])
info2 = info2.partition("\n")[2]
self.assertEquals(info, info2)
if __name__ == '__main__':
unittest.main()
|
