def _configure_interface(self):
"""
Applies sysctls and routes to the interface.
"""
try:
if self.ip_type == IPV4:
devices.configure_interface_ipv4(self._iface_name)
nets_key = "ipv4_nets"
else:
ipv6_gw = self.endpoint.get("ipv6_gateway", None)
devices.configure_interface_ipv6(self._iface_name, ipv6_gw)
nets_key = "ipv6_nets"
ips = set()
for ip in self.endpoint.get(nets_key, []):
ips.add(futils.net_to_ip(ip))
devices.set_routes(self.ip_type, ips, self._iface_name,
self.endpoint["mac"])
except (IOError, FailedSystemCall, CalledProcessError):
if not devices.interface_exists(self._iface_name):
_log.info("Interface %s for %s does not exist yet",
self._iface_name, self.endpoint_id)
elif not devices.interface_up(self._iface_name):
_log.info("Interface %s for %s is not up yet",
self._iface_name, self.endpoint_id)
else:
# OK, that really should not happen.
_log.exception("Failed to configure interface %s for %s",
self._iface_name, self.endpoint_id)
raise
def _configure_interface(self, mac_changed=True):
"""
Applies sysctls and routes to the interface.
:param: bool mac_changed: Has the MAC address changed since it was last
configured? If so, we reconfigure ARP for the interface in
IPv4 (ARP does not exist for IPv6, which uses neighbour
solicitation instead).
"""
try:
if self.ip_type == IPV4:
devices.configure_interface_ipv4(self._iface_name)
reset_arp = mac_changed
else:
ipv6_gw = self.endpoint.get("ipv6_gateway", None)
devices.configure_interface_ipv6(self._iface_name, ipv6_gw)
reset_arp = False
ips = set()
for ip in self.endpoint.get(self.nets_key, []):
ips.add(futils.net_to_ip(ip))
devices.set_routes(self.ip_type, ips, self._iface_name, self.endpoint["mac"], reset_arp=reset_arp)
except (IOError, FailedSystemCall):
if not devices.interface_exists(self._iface_name):
_log.info("Interface %s for %s does not exist yet", self._iface_name, self.combined_id)
elif not devices.interface_up(self._iface_name):
_log.info("Interface %s for %s is not up yet", self._iface_name, self.combined_id)
else:
# Interface flapped back up after we failed?
_log.warning("Failed to configure interface %s for %s", self._iface_name, self.combined_id)
def _configure_interface(self):
"""
Applies sysctls and routes to the interface.
"""
try:
if self.ip_type == IPV4:
devices.configure_interface_ipv4(self._iface_name)
nets_key = "ipv4_nets"
else:
ipv6_gw = self.endpoint.get("ipv6_gateway", None)
devices.configure_interface_ipv6(self._iface_name, ipv6_gw)
nets_key = "ipv6_nets"
ips = set()
for ip in self.endpoint.get(nets_key, []):
ips.add(futils.net_to_ip(ip))
devices.set_routes(self.ip_type, ips,
self._iface_name,
self.endpoint["mac"])
except (IOError, FailedSystemCall, CalledProcessError):
if not devices.interface_exists(self._iface_name):
_log.info("Interface %s for %s does not exist yet",
self._iface_name, self.endpoint_id)
elif not devices.interface_up(self._iface_name):
_log.info("Interface %s for %s is not up yet",
self._iface_name, self.endpoint_id)
else:
# Interface flapped back up after we failed?
_log.warning("Failed to configure interface %s for %s",
self._iface_name, self.endpoint_id)
def test_configure_interface_ipv4_mainline(self):
m_open = mock.mock_open()
tap = "tap" + str(uuid.uuid4())[:11]
with mock.patch('__builtin__.open', m_open, create=True):
devices.configure_interface_ipv4(tap)
calls = [mock.call('/proc/sys/net/ipv4/conf/%s/route_localnet' % tap, 'wb'),
M_ENTER, mock.call().write('1'), M_CLEAN_EXIT,
mock.call('/proc/sys/net/ipv4/conf/%s/proxy_arp' % tap, 'wb'),
M_ENTER, mock.call().write('1'), M_CLEAN_EXIT,
mock.call('/proc/sys/net/ipv4/neigh/%s/proxy_delay' %tap, 'wb'),
M_ENTER, mock.call().write('0'), M_CLEAN_EXIT,]
m_open.assert_has_calls(calls)
def test_configure_interface_ipv4_mainline(self):
m_open = mock.mock_open()
tap = "tap" + str(uuid.uuid4())[:11]
with mock.patch('__builtin__.open', m_open, create=True):
devices.configure_interface_ipv4(tap)
calls = [mock.call('/proc/sys/net/ipv4/conf/%s/rp_filter' % tap, 'wb'),
M_ENTER, mock.call().write('1'), M_CLEAN_EXIT,
mock.call('/proc/sys/net/ipv4/conf/%s/route_localnet' % tap, 'wb'),
M_ENTER, mock.call().write('1'), M_CLEAN_EXIT,
mock.call('/proc/sys/net/ipv4/conf/%s/proxy_arp' % tap, 'wb'),
M_ENTER, mock.call().write('1'), M_CLEAN_EXIT,
mock.call('/proc/sys/net/ipv4/neigh/%s/proxy_delay' %tap, 'wb'),
M_ENTER, mock.call().write('0'), M_CLEAN_EXIT,]
m_open.assert_has_calls(calls)
def _configure_interface(self):
"""
Applies sysctls and routes to the interface.
"""
if not self._device_is_up:
_log.debug("Device is known to be down, skipping attempt to "
"configure it.")
return
try:
if self.ip_type == IPV4:
devices.configure_interface_ipv4(self._iface_name)
reset_arp = self._mac_changed
else:
ipv6_gw = self.endpoint.get("ipv6_gateway", None)
devices.configure_interface_ipv6(self._iface_name, ipv6_gw)
reset_arp = False
ips = set()
for ip in self.endpoint.get(self.nets_key, []):
ips.add(futils.net_to_ip(ip))
for nat_map in self.endpoint.get(nat_key(self.ip_type), []):
ips.add(nat_map['ext_ip'])
devices.set_routes(self.ip_type,
ips,
self._iface_name,
self.endpoint.get("mac"),
reset_arp=reset_arp)
except (IOError, FailedSystemCall) as e:
if not devices.interface_exists(self._iface_name):
_log.info("Interface %s for %s does not exist yet",
self._iface_name, self.combined_id)
elif not devices.interface_up(self._iface_name):
_log.info("Interface %s for %s is not up yet",
self._iface_name, self.combined_id)
else:
# Either the interface flapped back up after the failure (in
# which case we'll retry when the event reaches us) or there
# was a genuine failure due to bad data or some other factor.
#
# Since the former is fairly common, we log at warning level
# rather than error, which avoids false positives.
_log.warning(
"Failed to configure interface %s for %s: %r. "
"Either the interface is flapping or it is "
"misconfigured.", self._iface_name, self.combined_id, e)
else:
_log.info("Interface %s configured", self._iface_name)
super(WorkloadEndpoint, self)._configure_interface()
def _configure_interface(self):
"""
Applies sysctls and routes to the interface.
"""
if not self._device_is_up:
_log.debug("Device is known to be down, skipping attempt to "
"configure it.")
return
try:
if self.ip_type == IPV4:
devices.configure_interface_ipv4(self._iface_name)
reset_arp = self._mac_changed
else:
ipv6_gw = self.endpoint.get("ipv6_gateway", None)
devices.configure_interface_ipv6(self._iface_name, ipv6_gw)
reset_arp = False
ips = set()
for ip in self.endpoint.get(self.nets_key, []):
ips.add(futils.net_to_ip(ip))
for nat_map in self.endpoint.get(nat_key(self.ip_type), []):
ips.add(nat_map['ext_ip'])
devices.set_routes(self.ip_type, ips,
self._iface_name,
self.endpoint["mac"],
reset_arp=reset_arp)
except (IOError, FailedSystemCall) as e:
if not devices.interface_exists(self._iface_name):
_log.info("Interface %s for %s does not exist yet",
self._iface_name, self.combined_id)
elif not devices.interface_up(self._iface_name):
_log.info("Interface %s for %s is not up yet",
self._iface_name, self.combined_id)
else:
# Either the interface flapped back up after the failure (in
# which case we'll retry when the event reaches us) or there
# was a genuine failure due to bad data or some other factor.
#
# Since the former is fairly common, we log at warning level
# rather than error, which avoids false positives.
_log.warning("Failed to configure interface %s for %s: %r. "
"Either the interface is flapping or it is "
"misconfigured.", self._iface_name,
self.combined_id, e)
else:
_log.info("Interface %s configured", self._iface_name)
self._device_in_sync = True
def _configure_interface(self):
"""
Applies sysctls and routes to the interface.
:param: bool mac_changed: Has the MAC address changed since it was last
configured? If so, we reconfigure ARP for the interface in
IPv4 (ARP does not exist for IPv6, which uses neighbour
solicitation instead).
"""
try:
if self.ip_type == IPV4:
devices.configure_interface_ipv4(self._iface_name)
reset_arp = self._mac_changed
else:
ipv6_gw = self.endpoint.get("ipv6_gateway", None)
devices.configure_interface_ipv6(self._iface_name, ipv6_gw)
reset_arp = False
ips = set()
for ip in self.endpoint.get(self.nets_key, []):
ips.add(futils.net_to_ip(ip))
devices.set_routes(self.ip_type,
ips,
self._iface_name,
self.endpoint["mac"],
reset_arp=reset_arp)
except (IOError, FailedSystemCall):
if not devices.interface_exists(self._iface_name):
_log.info("Interface %s for %s does not exist yet",
self._iface_name, self.combined_id)
elif not devices.interface_up(self._iface_name):
_log.info("Interface %s for %s is not up yet",
self._iface_name, self.combined_id)
else:
# Interface flapped back up after we failed?
_log.warning("Failed to configure interface %s for %s",
self._iface_name, self.combined_id)
else:
_log.info("Interface %s configured", self._iface_name)
self._device_in_sync = True
self._device_has_been_in_sync = True
def test_configure_interface_ipv4_mainline(self):
m_open = mock.mock_open()
tap = "tap" + str(uuid.uuid4())[:11]
with mock.patch("__builtin__.open", m_open, create=True):
devices.configure_interface_ipv4(tap)
calls = [
mock.call("/proc/sys/net/ipv4/conf/%s/rp_filter" % tap, "wb"),
M_ENTER,
mock.call().write("1"),
M_CLEAN_EXIT,
mock.call("/proc/sys/net/ipv4/conf/%s/route_localnet" % tap, "wb"),
M_ENTER,
mock.call().write("1"),
M_CLEAN_EXIT,
mock.call("/proc/sys/net/ipv4/conf/%s/proxy_arp" % tap, "wb"),
M_ENTER,
mock.call().write("1"),
M_CLEAN_EXIT,
mock.call("/proc/sys/net/ipv4/neigh/%s/proxy_delay" % tap, "wb"),
M_ENTER,
mock.call().write("0"),
M_CLEAN_EXIT,
]
m_open.assert_has_calls(calls)
