def test_name_to_index(self):
# This test relies on the fact that ifconfig returns interfaces in
# sequential order according to their interface index.
ifconfig = subprocess.Popen(['/sbin/ifconfig'], stdout=subprocess.PIPE)
expected_if_idx = 0
for line in ifconfig.stdout.readlines():
m = re.search('^(\w+\d):', line)
if m:
expected_if_idx += 1
if_name = m.group(1)
if_idx = name_to_index(if_name)
self.assertNotEquals(
if_idx,
0,
msg='Error looking up interface index for %s' % (if_name))
self.assertEquals(
if_idx,
expected_if_idx,
msg='Interface index for %s was %d, expected %d' %
(if_name, if_idx, expected_if_idx))
self.assertNotEquals(expected_if_idx,
0,
msg="Couldn't find any interfaces to test")
self.assertRaises(aplib.oserrors.ENXIO, name_to_index,
'invalidinterface')
def send_na(ip, mac, if_name):
# Do we need the mac given that we have if_name?
# ifmedia.ethernet_mac('em0') -> '00:13:72:66:e2:42'
# maybe an optional arg so that it can be overridden (spoofed?)
icmp_packet = NDNeighborAdvert(ip, mac).pack()
s = socket.socket(socket.AF_INET6, socket.SOCK_RAW, socket.IPPROTO_ICMPV6)
# The hoplimit must be 255 so that the receiver can verify that the
# packet has not been forwarded. RFC 3542 sec 6.3
s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, 255)
# Set the interface to use for multicast with this socket
if_idx = name_to_index(if_name)
s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, if_idx)
# Tell the OS not to loop this packet back to ourselves.
s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, 0)
s.sendto(icmp_packet, ('ff02::1', 0))
def test_name_to_index(self):
# This test relies on the fact that ifconfig returns interfaces in
# sequential order according to their interface index.
ifconfig = subprocess.Popen(['/sbin/ifconfig'], stdout=subprocess.PIPE)
expected_if_idx = 0
for line in ifconfig.stdout.readlines():
m = re.search('^(\w+\d):', line)
if m:
expected_if_idx += 1
if_name = m.group(1)
if_idx = name_to_index(if_name)
self.assertNotEquals(if_idx, 0,
msg='Error looking up interface index for %s' %(if_name))
self.assertEquals(if_idx, expected_if_idx,
msg='Interface index for %s was %d, expected %d' %(
if_name, if_idx, expected_if_idx))
self.assertNotEquals(expected_if_idx, 0,
msg="Couldn't find any interfaces to test")
self.assertRaises(aplib.oserrors.ENXIO, name_to_index, 'invalidinterface')
