def check_ip_address(ipaddress):
try:
ip4_addr(ipaddress)
except Exception:
raise ValueError(" ip address illegal " + ipaddress)
return ipaddress
def parser_ip_address(ipaddress):
try:
ip4_addr(ipaddress)
except Exception:
raise ValueError(" ip address illegal " + ipaddress)
return ipaddress
def packet_out_free_arp(logicalport, logicalnet, logicalnetid,
phyportid):
egress = self._parent._gettableindex(
"egress", self._connection.protocol.vhost)
arp_request_packet = arp_packet_l4(
dl_src=mac_addr(logicalport.mac_address),
dl_dst=mac_addr("FF:FF:FF:FF:FF:FF"),
arp_op=ofdef.ARPOP_REQUEST,
arp_sha=mac_addr(logicalport.mac_address),
arp_spa=ip4_addr(logicalport.ip_address),
arp_tpa=ip4_addr(logicalport.ip_address))
return ofdef.ofp_packet_out(
buffer_id=ofdef.OFP_NO_BUFFER,
in_port=ofdef.OFPP_CONTROLLER,
actions=[
ofdef.ofp_action_set_field(field=ofdef.create_oxm(
ofdef.NXM_NX_REG4, logicalnetid)),
ofdef.ofp_action_set_field(field=ofdef.create_oxm(
ofdef.NXM_NX_REG5, logicalnetid)),
ofdef.ofp_action_set_field(field=ofdef.create_oxm(
ofdef.NXM_NX_REG6, phyportid)),
ofdef.ofp_action_set_field(
field=ofdef.create_oxm(ofdef.NXM_NX_REG7, 0x4000)),
ofdef.nx_action_resubmit(table=egress)
],
data=arp_request_packet._tobytes())
def check_ip_address(ipaddress):
try:
ip = ip4_addr(ipaddress)
except Exception:
raise ValueError("Invalid IP address " + ipaddress)
return ip
def generate_route(r):
r_g = {'Destination': r[0]}
if ip4_addr(r[1]) == 0:
r_g['RouteType'] = 1
else:
r_g['RouteType'] = 0
r_g['NextHop'] = r[1]
def delete_interface(keys, values):
rkeys = keys[0:len(routerkeys)]
robjs = values[0:len(routerkeys)]
snkeys = keys[len(routerkeys):len(routerkeys) + len(subnetkeys)]
snobjs = values[len(routerkeys):len(routerkeys) + len(subnetkeys)]
snmkeys = keys[len(routerkeys) + len(subnetkeys):len(routerkeys) +
len(subnetkeys) + len(subnetmapkeys)]
snmobjs = values[len(routerkeys) +
len(subnetkeys):len(routerkeys) +
len(subnetkeys) + len(subnetmapkeys)]
rpkeys = keys[-len(routerportkeys):]
rpobjs = values[-len(routerportkeys):]
rdict = dict(zip(rkeys, robjs))
sndict = dict(zip(snkeys, snobjs))
snmdict = dict(zip(snmkeys, snmobjs))
rpdict = dict(zip(rpkeys, rpobjs))
for interface in delete_interfaces:
r = rdict.get(VRouter.default_key(interface["router"]), None)
sn = sndict.get(SubNet.default_key(interface["subnet"]), None)
snm = snmdict.get(SubNetMap.default_key(interface["subnet"]),
None)
rp = rpdict.get(
RouterPort.default_key(interface["routerport"]), None)
if r and sn and snm and rp:
# has not attr ip_address, means router port use subnet gateway as ip_address
if hasattr(rp, 'ip_address'):
# it means have allocated ip address in subnetmap, delete it
ipaddress = ip4_addr(rp.ip_address)
del snm.allocated_ips[str(ipaddress)]
# one subnet only have one router , so del this attr
if hasattr(sn, 'router'):
delattr(sn, 'router')
if rp.create_weakreference() in r.interfaces.dataset():
r.interfaces.dataset().discard(
rp.create_weakreference())
else:
raise ValueError("router " + interface["router"] +
" have no router port " +
interface["routerport"])
else:
raise ValueError("route " + interface["router"] +
" subnet " + interface["subnet"] +
" routerport " + interface["routerport"] +
" not existed!")
return keys, robjs + snobjs + snmobjs + [None
] * len(routerportkeys)
def parse_ip4_network( network ):
ip,f,prefix = network.rpartition('/')
if not f or not prefix:
raise ValueError('invalid cidr ' + network)
if not 0 <= int(prefix) <= 32:
raise ValueError("invalid prefix " + prefix)
netmask = get_netmask(prefix)
value = ip4_addr(ip)
return value & netmask,int(prefix)
def parse_ip4_network( network ):
ip,f,prefix = network.rpartition('/')
if not f:
raise ValueError('invalid cidr ' + prefix)
if not 0 <= int(prefix) <= 32:
raise ValueError("invalid prefix " + prefix)
netmask = get_netmask(prefix)
value = ip4_addr(ip)
return value & netmask,int(prefix)
def removerouterinterface(keys,values):
rkeys = keys[0:len(routerkeys)]
robjs = values[0:len(routerkeys)]
snkeys = keys[len(routerkeys):len(routerkeys) + len(subnetkeys)]
snobjs = values[len(routerkeys):len(routerkeys) + len(subnetkeys)]
snmkeys = keys[len(routerkeys) + len(subnetkeys):len(routerkeys) + len(subnetkeys) + len(subnetmapkeys)]
snmobjs = values[len(routerkeys) + len(subnetkeys):len(routerkeys) + len(subnetmapkeys) + len(subnetmapkeys)]
rportkeys = keys[len(routerkeys) + len(subnetkeys) + len(subnetmapkeys):]
rportobjs = values[len(routerkeys) + len(subnetkeys) + len(subnetmapkeys):]
# we get (routerkeys,routerobjs) on begin to get (router , subnet) attr
# this is second get (routerkeys,routerobjs) , if (router,subnet) is different from last, Nothing can do!
if [r.router.getkey() for r in routerportobjs] !=\
[r.router.getkey() if r is not None else None for r in rportobjs] and\
[r.subnet.getkey() for r in routerportobjs] !=\
[r.subnet.getkey() if r is not None else None for r in rportobjs]:
raise ValueError(" conflict error, try again!")
rdict = dict(zip(rkeys,robjs))
sndict = dict(zip(snkeys,zip(snobjs,snmobjs)))
rportdict = dict(zip(rportkeys,rportobjs))
for interface in deleteinterfaces:
routerobj = rdict[VRouter.default_key(interface['router'])]
subnetobj,subnetmapobj = sndict[SubNet.default_key(interface['subnet'])]
rportobj = rportdict[RouterPort.default_key(interface['id'])]
if routerobj and subnetobj and subnetmapobj:
# has not attr ip_address, means router port use subnet gateway as ip_address
if hasattr(rportobj,'ip_address'):
# it means have allocated ip address in subnetmap, delete it
ipaddress = ip4_addr(rportobj.ip_address)
del subnetmapobj.allocated_ips[str(ipaddress)]
# one subnet only have one router , so del this attr
if hasattr(subnetobj,'router'):
delattr(subnetobj,'router')
routerobj.interfaces.dataset().discard(rportobj.create_weakreference())
else:
raise ValueError(" interface router " + interface['router']\
+ "or subnet " + interface['subnet'] + "not existed")
return keys,robjs + snobjs + snmobjs + [None] * len(routerportkeys)
async def ipam_releaseaddress(self, env, params):
poolid = params['PoolID']
address = params['Address']
address = ip4_addr.formatter(ip4_addr(address))
def _updater(keys, values, timestamp):
pool = values[0]
if pool is None:
return ((), ())
self._remove_staled_ips(pool, timestamp)
if address in pool.reserved_ips:
del pool.reserved_ips[address]
return ((keys[0], ), (pool, ))
await call_api(
self, 'objectdb', 'transact', {
'keys': (IPAMReserve.default_key(poolid), ),
'updater': _updater,
'withtime': True
})
env.outputjson({})
def __init__(self, parent):
HttpHandler.__init__(self, parent.scheduler, False, parent.vhostbind)
self._parent = parent
self._logger = parent._logger
self._macbase = uint64.create(
create_binary(mac_addr_bytes(self._parent.mactemplate), 8))
cidrrange = parent.cidrrange
try:
subnet, mask = parse_ip4_network(cidrrange)
if not (0 <= mask <= 24):
raise ValueError
except Exception:
self._logger.warning(
'Invalid CIDR range: %r. Using default 10.0.0.0/8', cidrrange)
subnet = ip4_addr('10.0.0.0')
mask = 8
self.cidrrange_subnet = subnet
self.cidrrange_mask = mask
self.cidrrange_end = (1 << (24 - mask))
self.pooltimeout = parent.pooltimeout
self.iptimeout = parent.iptimeout
self._reqid = 0
def _create_dhcp_route(cidr, router):
network, mask = parse_ip4_network(cidr)
return dhcp_route(subnet = ip4_addr.tobytes(network), mask = mask, router = ip4_addr(router))
prepack = _prepack_dhcp_option,
padding = 1
)
dhcp_option_single_byte = nstruct(name = 'dhcp_option_single_byte',
base = dhcp_option,
criteria = lambda x: x.tag in (OPTION_PAD, OPTION_END),
init = packvalue(OPTION_PAD, 'tag'))
dhcp_option_address = nstruct((ip4_addr, 'value'),
name = 'dhcp_option_address',
base = dhcp_option,
criteria = lambda x: x.tag in (OPTION_NETMASK, OPTION_REQUESTED_IP, OPTION_SERVER_IDENTIFIER, OPTION_BROADCAST),
init = packvalue(OPTION_NETMASK, 'tag'))
dhcp_option_address._parse_from_value = lambda x: ip4_addr(x)
dhcp_time_value = enum('dhcp_time_value', globals(), uint32,
DHCPTIME_INFINITE = 0xffffffff
)
dhcp_option_time = nstruct((dhcp_time_value, 'value'),
name = 'dhcp_option_time',
base = dhcp_option,
criteria = lambda x: x.tag in (OPTION_TIME_OFFSET, OPTION_LEASE_TIME, OPTION_T1, OPTION_T2),
init = packvalue(OPTION_LEASE_TIME, 'tag')
)
dhcp_option_time._parse_from_value = lambda x: int(x) if x is not None and x != 'infinity' else DHCPTIME_INFINITE
dhcp_option_servers = nstruct((ip4_addr[0], 'value'),
def updateflow(self, connection, addvalues, removevalues, updatedvalues):
try:
allobjs = set(o for o in self._savedresult
if o is not None and not o.isdeleted())
# Create DHCP entries
lastlognetinfo = self._lastlognetinfo
lastlogportinfo = self._lastlogportinfo
lastserveraddresses = self._lastserveraddresses
currentlognetinfo = dict(
(n, id) for n, id in self._lastlognets if n in allobjs)
currentlogportinfo = dict(
(p,
(id, currentlognetinfo[p.network], p.ip_address,
p.mac_address,
getattr(p.subnet, 'dhcp_server', self._parent.serveraddress))
) for p, id in self._lastlogports if p in allobjs
and p.network in currentlognetinfo and hasattr(p, 'subnet'))
currentserveraddresses = set(
(v[4], self._parent.servermac, p.network.id, True)
for p, v in currentlogportinfo.items())
self._lastlognetinfo = currentlognetinfo
self._lastlogportinfo = currentlogportinfo
self._lastserveraddresses = currentserveraddresses
dhcp_entries = {}
t1 = self._parent.t1
t2 = self._parent.t2
for p in self._savedresult:
if p is not None and not p.isdeleted() and p.isinstance(LogicalPort) and hasattr(p, 'subnet') \
and hasattr(p, 'ip_address') and hasattr(p, 'mac_address'):
if p.network in currentlognetinfo and p in currentlogportinfo:
try:
pid, _, ip_address, mac_address, server_address = currentlogportinfo[
p]
if getattr(p.subnet, 'dhcp_enabled', False):
continue
cidr = p.subnet.cidr
network, mask = parse_ip4_network(cidr)
# options from default settings
entries = {
d.OPTION_LEASE_TIME:
(lambda x: d.DHCPTIME_INFINITE
if x is None else x)(self._parent.leasetime)
}
# options from network
if hasattr(p.network, 'dns_nameservers'):
entries[
d.
OPTION_DNSSERVER] = p.network.dns_nameservers
if hasattr(p.network, 'domain_name'):
entries[
d.
OPTION_DOMAINNAME] = p.network.domain_name
if hasattr(p.network, 'mtu'):
entries[d.OPTION_MTU] = p.network.mtu
if hasattr(p.network, 'ntp_servers'):
entries[
d.OPTION_NTPSERVER] = p.network.ntp_servers
if hasattr(p.network, 'lease_time'):
entries[
d.OPTION_LEASE_TIME] = p.network.lease_time
if hasattr(p.network, 'extra_dhcp_options'):
entries.update(p.network.extra_dhcp_options)
options = d.create_dhcp_options(
entries, True, True)
# options from subnet
entries = {
d.OPTION_NETMASK:
ip4_addr.formatter(get_netmask(mask)),
d.OPTION_BROADCAST:
ip4_addr.formatter(get_broadcast(
network, mask))
}
if hasattr(p.subnet, 'gateway'):
entries[d.OPTION_ROUTER] = p.subnet.gateway
if hasattr(p.subnet, 'dns_nameservers'):
entries[
d.
OPTION_DNSSERVER] = p.subnet.dns_nameservers
if hasattr(p.subnet, 'domain_name'):
entries[
d.OPTION_DOMAINNAME] = p.subnet.domain_name
if hasattr(p.subnet, 'mtu'):
entries[d.OPTION_MTU] = p.subnet.mtu
if hasattr(p.subnet, 'ntp_servers'):
entries[
d.OPTION_NTPSERVER] = p.subnet.ntp_servers
if hasattr(p.subnet, 'lease_time'):
entries[
d.OPTION_LEASE_TIME] = p.subnet.lease_time
# Routes is special
if hasattr(p.subnet, 'host_routes'):
routes = list(p.subnet.host_routes)
if routes and not any(
parse_ip4_network(r[0]) == (0, 0)
for r in routes):
routes.append(
['0.0.0.0/0', p.subnet.gateway])
entries[d.OPTION_CLASSLESSROUTE] = routes
# TODO: add extra routes from routers
if hasattr(p.subnet, 'extra_dhcp_options'):
entries.update(p.subnet.extra_dhcp_options)
options.update(
d.create_dhcp_options(entries, True, True))
entries = {}
if hasattr(p, 'hostname'):
entries[d.OPTION_HOSTNAME] = p.hostname
if hasattr(p, 'extra_dhcp_options'):
entries.update(p.extra_dhcp_options)
options.update(
d.create_dhcp_options(entries, True, True))
entries = {
d.OPTION_SERVER_IDENTIFIER: server_address
}
options.update(
d.create_dhcp_options(entries, True, True))
options = dict((k, v) for k, v in options.items()
if v is not None)
if d.OPTION_LEASE_TIME not in options:
options[
d.
OPTION_LEASE_TIME] = d.create_option_from_value(
d.OPTION_LEASE_TIME,
d.DHCPTIME_INFINITE)
if options[
d.
OPTION_LEASE_TIME].value != d.DHCPTIME_INFINITE:
leasetime = options[d.OPTION_LEASE_TIME].value
if d.OPTION_T1 not in options and t1 is not None and t1 < leasetime:
options[
d.
OPTION_T1] = d.create_option_from_value(
d.OPTION_T1, t1)
if d.OPTION_T2 not in options and t2 is not None and t2 < leasetime:
options[
d.
OPTION_T1] = d.create_option_from_value(
d.OPTION_T1, t2)
dhcp_entries[pid] = (mac_addr(mac_address),
ip4_addr(ip_address),
ip4_addr(server_address),
options)
except Exception:
self._logger.warning(
"Failed to create DHCP options for port id=%r. Will disable DHCP on this port",
p.id,
exc_info=True)
self._dhcpentries = dhcp_entries
# Create flows
# For every logical port, create two flows
ofdef = connection.openflowdef
vhost = connection.protocol.vhost
l3 = self._parent._gettableindex('l3input', vhost)
cmds = []
if connection.protocol.disablenxext:
def match_network(nid):
return [
ofdef.create_oxm(ofdef.OXM_OF_METADATA_W,
((nid & 0xffff) << 32) |
(0xffff << 16),
b'\x00\x00\xff\xff\x40\x00\x00\x00')
]
else:
def match_network(nid):
return [
ofdef.create_oxm(ofdef.NXM_NX_REG5, nid),
ofdef.create_oxm(ofdef.NXM_NX_REG7_W, 0x4000, 0x4000)
]
def _delete_flows(nid):
return ofdef.ofp_flow_mod(
cookie=0x1,
cookie_mask=0xffffffffffffffff,
table_id=l3,
command=ofdef.OFPFC_DELETE,
priority=ofdef.OFP_DEFAULT_PRIORITY,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=match_network(nid) + [
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]))
def _delete_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(
cookie=0x1,
cookie_mask=0xffffffffffffffff,
table_id=l3,
command=ofdef.OFPFC_DELETE,
priority=ofdef.OFP_DEFAULT_PRIORITY,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=match_network(nid) + [
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]))
def _create_flows(nid):
return ofdef.ofp_flow_mod(
cookie=0x1,
cookie_mask=0xffffffffffffffff,
table_id=l3,
command=ofdef.OFPFC_ADD,
priority=ofdef.OFP_DEFAULT_PRIORITY,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=match_network(nid) + [
ofdef.create_oxm(ofdef.OXM_OF_ETH_DST_W,
b'\x01\x00\x00\x00\x00\x00',
b'\x01\x00\x00\x00\x00\x00'),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]),
instructions=[
ofdef.ofp_instruction_actions(actions=[
ofdef.ofp_action_output(
port=ofdef.OFPP_CONTROLLER,
max_len=ofdef.OFPCML_NO_BUFFER)
])
])
def _create_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(
cookie=0x1,
cookie_mask=0xffffffffffffffff,
table_id=l3,
command=ofdef.OFPFC_ADD,
priority=ofdef.OFP_DEFAULT_PRIORITY,
buffer_id=ofdef.OFP_NO_BUFFER,
out_port=ofdef.OFPP_ANY,
out_group=ofdef.OFPG_ANY,
match=ofdef.ofp_match_oxm(oxm_fields=match_network(nid) + [
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE,
ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO,
ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]),
instructions=[
ofdef.ofp_instruction_actions(actions=[
ofdef.ofp_action_output(
port=ofdef.OFPP_CONTROLLER,
max_len=ofdef.OFPCML_NO_BUFFER)
])
])
for n in removevalues:
if n in lastlognetinfo:
nid = lastlognetinfo[n]
cmds.append(_delete_flows(nid))
lastnetdict = {n.id: n for n in lastlognetinfo}
for serveraddr in lastserveraddresses:
if serveraddr not in currentserveraddresses:
addr, _, networkid, _ = serveraddr
if networkid in lastnetdict:
n = lastnetdict[networkid]
nid = lastlognetinfo[n]
cmds.append(_delete_flows2(nid, addr))
for m in self.execute_commands(connection, cmds):
yield m
# Remove old ARP entries; Add new ARP entries
remove_arps = lastserveraddresses.difference(
currentserveraddresses)
if remove_arps:
for m in callAPI(self, 'arpresponder', 'removeproxyarp', {
'connection': connection,
'arpentries': remove_arps
}):
yield m
add_arps = currentserveraddresses.difference(lastserveraddresses)
if add_arps:
for m in callAPI(self, 'arpresponder', 'createproxyarp', {
'connection': connection,
'arpentries': add_arps
}):
yield m
del cmds[:]
for n in addvalues:
if n in currentlognetinfo:
nid = currentlognetinfo[n]
cmds.append(_create_flows(nid))
currnetdict = {n.id: n for n in currentlognetinfo}
for serveraddr in currentserveraddresses:
if serveraddr not in lastserveraddresses:
addr, _, networkid, _ = serveraddr
if networkid in currnetdict:
n = currnetdict[networkid]
nid = currentlognetinfo[n]
cmds.append(_create_flows2(nid, addr))
for m in self.execute_commands(connection, cmds):
yield m
except Exception:
self._logger.warning(
"Unexpected exception in DHCPUpdater. Will ignore and continue.",
exc_info=True)
def _get_ip(ip):
try:
return ip4_addr(ip)
except Exception:
return None
def createendpoint(self, env, params):
lognet_id = 'docker-' + params['NetworkID'] + '-lognet'
subnet_id = 'docker-' + params['NetworkID'] + '-subnet'
logport_id = 'docker-' + params['EndpointID']
logport_params = {}
if 'Options' in params:
logport_params.update(params['Options'])
logport_params['id'] = logport_id
logport_params['logicalnetwork'] = lognet_id
logport_params['subnet'] = subnet_id
mac_address = None
if 'Interface' in params:
interface = params['Interface']
if 'Address' in interface and interface['Address']:
ip, f, prefix = interface['Address'].partition('/')
logport_params['ip_address'] = ip
else:
ip = None
if 'MacAddress' in interface and interface['MacAddress']:
logport_params['mac_address'] = interface['MacAddress']
mac_address = interface['MacAddress']
if mac_address is None:
# Generate a MAC address
if ip:
# Generate MAC address based on IP address
mac_num = self._macbase
mac_num ^= ((hash(subnet_id) & 0xffffffff) << 8)
mac_num ^= ip4_addr(ip)
else:
# Generate MAC address based on Port ID and random number
mac_num = self._macbase
mac_num ^= ((hash(logport_id) & 0xffffffff) << 8)
mac_num ^= randint(0, 0xffffffff)
mac_address = mac_addr_bytes.formatter(create_binary(mac_num, 6))
logport_params['mac_address'] = mac_address
try:
for m in callAPI(self, 'viperflow', 'createlogicalport',
logport_params):
yield m
except Exception as exc:
# There is an issue that docker daemon may not delete an endpoint correctly
# If autoremoveports is enabled, we remove the logical port automatically
# Note that created veth and Openvswitch ports are not cleared because they
# may not on this server, so you must clean them yourself with vlcp_docker.cleanup
if self._parent.autoremoveports:
for m in callAPI(self, 'viperflow', 'listlogicalports', {
'logicalnetwork': lognet_id,
'ip_address': ip
}):
yield m
if self.retvalue:
if self.retvalue[0]['id'].startswith('docker-'):
dup_pid = self.retvalue[0]['id']
self._logger.warning(
'Duplicated ports detected: %s (%s). Will remove it.',
dup_pid, self.retvalue[0]['ip_address'])
for m in callAPI(self, 'viperflow',
'deletelogicalport', {'id': dup_pid}):
yield m
# Retry create logical port
for m in callAPI(self, 'viperflow',
'createlogicalport', logport_params):
yield m
else:
self._logger.warning(
'Duplicated with a non-docker port')
raise exc
else:
raise exc
else:
raise exc
ip_address = self.retvalue[0]['ip_address']
subnet_cidr = self.retvalue[0]['subnet']['cidr']
mtu = self.retvalue[0]['network'].get('mtu', self._parent.mtu)
_, _, prefix = subnet_cidr.partition('/')
if 'docker_ipam_poolid' in self.retvalue[0]['subnet']:
docker_ipam_poolid = self.retvalue[0]['subnet'][
'docker_ipam_poolid']
def _remove_ip_reservation():
try:
# The reservation is completed, remove the temporary reservation
def _ipam_updater(keys, values, timestamp):
pool = values[0]
self._remove_staled_ips(pool, timestamp)
if ip_address in pool.reserved_ips:
del pool.reserved_ips[ip_address]
return ((keys[0], ), (pool, ))
for m in callAPI(
self, 'objectdb', 'transact',
{
'keys':
(IPAMReserve.default_key(docker_ipam_poolid), ),
'updater': _ipam_updater,
'withtime': True
}):
yield m
except Exception:
self._logger.warning(
'Unexpected exception while removing reservation of IP address %r, will ignore and continue',
ip_address,
exc_info=True)
self.subroutine(_remove_ip_reservation())
port_created = False
try:
for m in self._parent.taskpool.runTask(
self,
lambda: _create_veth(self._parent.ipcommand, self._parent.
vethprefix, mac_address, mtu)):
yield m
port_created = True
device_name, _ = self.retvalue
info = DockerInfo.create_instance(logport_id)
info.docker_port = device_name
@updater
def _updater(dockerinfo):
dockerinfo = set_new(dockerinfo, info)
return (dockerinfo, )
for m in callAPI(self, 'objectdb', 'transact', {
'keys': (info.getkey(), ),
'updater': _updater
}):
yield m
for m in self._parent.taskpool.runTask(
self,
lambda: _plug_ovs(self._parent.ovscommand, self._parent.
ovsbridge, device_name, logport_id)):
yield m
result = {'Interface': {'MacAddress': mac_address}}
if 'Address' not in interface:
result['Interface']['Address'] = ip_address + '/' + prefix
env.outputjson(result)
except Exception as exc:
try:
if port_created:
for m in self._parent.taskpool.runTask(
self, lambda: _delete_veth(self._parent.ipcommand,
device_name)):
yield m
except Exception:
pass
try:
for m in callAPI(self, 'viperflow', 'deletelogicalport',
{'id': logport_id}):
yield m
except Exception:
pass
raise exc
def _updater(keys, values, timestamp):
pool = values[0]
if pool is None:
raise ValueError('PoolID %r does not exist' % (poolid, ))
self._remove_staled_ips(pool, timestamp)
if len(values) > 1:
subnetmap = values[1]
if not hasattr(
pool,
'subnetmap') or pool.subnetmap.getkey() != keys[1]:
raise RetryUpdateException
subnet = values[2]
else:
subnetmap = None
if hasattr(pool, 'subnetmap'):
raise RetryUpdateException
if address:
# check ip_address in cidr
if address in pool.reserved_ips:
raise ValueError("IP address " + address +
" has been reserved")
if pool.subpool:
cidr = pool.subpool
else:
cidr = pool.pool
network, mask = parse_ip4_network(cidr)
addr_num = ip4_addr(address)
if not ip_in_network(addr_num, network, mask):
raise ValueError('IP address ' + address +
" is not in the network CIDR")
if subnetmap is not None:
start = ip4_addr(subnet.allocated_start)
end = ip4_addr(subnet.allocated_end)
try:
assert start <= addr_num <= end
if hasattr(subnet, 'gateway'):
assert addr_num != ip4_addr(subnet.gateway)
except Exception:
raise ValueError("specified IP address " + address +
" is not valid")
if str(addr_num) in subnetmap.allocated_ips:
raise ValueError("IP address " + address +
" has been used")
new_address = address
else:
# allocated ip_address from cidr
gateway = None
cidr = pool.pool
if pool.subpool:
cidr = pool.subpool
network, prefix = parse_ip4_network(cidr)
start = network_first(network, prefix)
end = network_last(network, prefix)
if subnetmap is not None:
start = max(start, ip4_addr(subnet.allocated_start))
end = min(end, ip4_addr(subnet.allocated_end))
if hasattr(subnet, "gateway"):
gateway = ip4_addr(subnet.gateway)
for ip_address in range(start, end):
new_address = ip4_addr.formatter(ip_address)
if ip_address != gateway and \
(subnetmap is None or str(ip_address) not in subnetmap.allocated_ips) and \
new_address not in pool.reserved_ips:
break
else:
raise ValueError("No available IP address can be used")
pool.reserved_ips[
new_address] = timestamp + self.iptimeout * 1000000
_, mask = parse_ip4_network(pool.pool)
rets[:] = [new_address + '/' + str(mask)]
return ((keys[0], ), (pool, ))
def ipam_requestaddress(self, env, params):
poolid = params['PoolID']
address = params['Address']
if address:
address = ip4_addr.formatter(ip4_addr(address))
reserve_key = IPAMReserve.default_key(poolid)
rets = []
def _updater(keys, values, timestamp):
pool = values[0]
if pool is None:
raise ValueError('PoolID %r does not exist' % (poolid, ))
self._remove_staled_ips(pool, timestamp)
if len(values) > 1:
subnetmap = values[1]
if not hasattr(
pool,
'subnetmap') or pool.subnetmap.getkey() != keys[1]:
raise RetryUpdateException
subnet = values[2]
else:
subnetmap = None
if hasattr(pool, 'subnetmap'):
raise RetryUpdateException
if address:
# check ip_address in cidr
if address in pool.reserved_ips:
raise ValueError("IP address " + address +
" has been reserved")
if pool.subpool:
cidr = pool.subpool
else:
cidr = pool.pool
network, mask = parse_ip4_network(cidr)
addr_num = ip4_addr(address)
if not ip_in_network(addr_num, network, mask):
raise ValueError('IP address ' + address +
" is not in the network CIDR")
if subnetmap is not None:
start = ip4_addr(subnet.allocated_start)
end = ip4_addr(subnet.allocated_end)
try:
assert start <= addr_num <= end
if hasattr(subnet, 'gateway'):
assert addr_num != ip4_addr(subnet.gateway)
except Exception:
raise ValueError("specified IP address " + address +
" is not valid")
if str(addr_num) in subnetmap.allocated_ips:
raise ValueError("IP address " + address +
" has been used")
new_address = address
else:
# allocated ip_address from cidr
gateway = None
cidr = pool.pool
if pool.subpool:
cidr = pool.subpool
network, prefix = parse_ip4_network(cidr)
start = network_first(network, prefix)
end = network_last(network, prefix)
if subnetmap is not None:
start = max(start, ip4_addr(subnet.allocated_start))
end = min(end, ip4_addr(subnet.allocated_end))
if hasattr(subnet, "gateway"):
gateway = ip4_addr(subnet.gateway)
for ip_address in range(start, end):
new_address = ip4_addr.formatter(ip_address)
if ip_address != gateway and \
(subnetmap is None or str(ip_address) not in subnetmap.allocated_ips) and \
new_address not in pool.reserved_ips:
break
else:
raise ValueError("No available IP address can be used")
pool.reserved_ips[
new_address] = timestamp + self.iptimeout * 1000000
_, mask = parse_ip4_network(pool.pool)
rets[:] = [new_address + '/' + str(mask)]
return ((keys[0], ), (pool, ))
while True:
# First get the current data, to determine that whether the pool has already
# been connected to a network
self._reqid += 1
reqid = ('dockerplugin_ipam', self._reqid)
for m in callAPI(self, 'objectdb', 'get', {
'key': reserve_key,
'requestid': reqid,
'nostale': True
}):
yield m
reserve_pool = self.retvalue
with watch_context([reserve_key], [reserve_pool], reqid, self):
if reserve_pool is None or reserve_pool.isdeleted():
raise ValueError('PoolID %r does not exist' % (poolid, ))
if hasattr(reserve_pool, 'subnetmap'):
# Retrieve both the reserve pool and the subnet map
keys = (reserve_key, reserve_pool.subnetmap.getkey(),
SubNet.default_key(reserve_pool.subnetmap.id))
else:
keys = (reserve_key, )
try:
for m in callAPI(self, 'objectdb', 'transact', {
'keys': keys,
'updater': _updater,
'withtime': True
}):
yield m
except RetryUpdateException:
continue
else:
env.outputjson({'Address': rets[0], 'Data': {}})
break
def _create_dhcp_route(cidr, router):
network, mask = parse_ip4_network(cidr)
return dhcp_route(subnet = ip4_addr.tobytes(network), mask = mask, router = ip4_addr(router))
def updateflow(self, connection, addvalues, removevalues, updatedvalues):
try:
allobjs = set(o for o in self._savedresult if o is not None and not o.isdeleted())
# Create DHCP entries
lastlognetinfo = self._lastlognetinfo
lastlogportinfo = self._lastlogportinfo
lastserveraddresses = self._lastserveraddresses
currentlognetinfo = dict((n, id) for n,id in self._lastlognets if n in allobjs)
currentlogportinfo = dict((p, (id, currentlognetinfo[p.network], p.ip_address, p.mac_address, getattr(p.subnet, 'dhcp_server', self._parent.serveraddress)))
for p,id in self._lastlogports
if p in allobjs and p.network in currentlognetinfo and hasattr(p,'subnet'))
currentserveraddresses = set((v[4], self._parent.servermac, p.network.id, True)
for p,v in currentlogportinfo.items())
self._lastlognetinfo = currentlognetinfo
self._lastlogportinfo = currentlogportinfo
self._lastserveraddresses = currentserveraddresses
dhcp_entries = {}
t1 = self._parent.t1
t2 = self._parent.t2
for p in self._savedresult:
if p is not None and not p.isdeleted() and p.isinstance(LogicalPort) and hasattr(p, 'subnet') \
and hasattr(p, 'ip_address') and hasattr(p, 'mac_address'):
if p.network in currentlognetinfo and p in currentlogportinfo:
try:
pid, _, ip_address, mac_address, server_address = currentlogportinfo[p]
if getattr(p.subnet, 'dhcp_enabled', False):
continue
cidr = p.subnet.cidr
network, mask = parse_ip4_network(cidr)
# options from default settings
entries = {d.OPTION_LEASE_TIME: (lambda x: d.DHCPTIME_INFINITE if x is None else x)(self._parent.leasetime)
}
# options from network
if hasattr(p.network, 'dns_nameservers'):
entries[d.OPTION_DNSSERVER] = p.network.dns_nameservers
if hasattr(p.network, 'domain_name'):
entries[d.OPTION_DOMAINNAME] = p.network.domain_name
if hasattr(p.network, 'mtu'):
entries[d.OPTION_MTU] = p.network.mtu
if hasattr(p.network, 'ntp_servers'):
entries[d.OPTION_NTPSERVER] = p.network.ntp_servers
if hasattr(p.network, 'lease_time'):
entries[d.OPTION_LEASE_TIME] = p.network.lease_time
if hasattr(p.network, 'extra_dhcp_options'):
entries.update(p.network.extra_dhcp_options)
options = d.create_dhcp_options(entries, True, True)
# options from subnet
entries = {d.OPTION_NETMASK : ip4_addr.formatter(get_netmask(mask)),
d.OPTION_BROADCAST : ip4_addr.formatter(get_broadcast(network, mask))}
if hasattr(p.subnet, 'gateway'):
entries[d.OPTION_ROUTER] = p.subnet.gateway
if hasattr(p.subnet, 'dns_nameservers'):
entries[d.OPTION_DNSSERVER] = p.subnet.dns_nameservers
if hasattr(p.subnet, 'domain_name'):
entries[d.OPTION_DOMAINNAME] = p.subnet.domain_name
if hasattr(p.subnet, 'mtu'):
entries[d.OPTION_MTU] = p.subnet.mtu
if hasattr(p.subnet, 'ntp_servers'):
entries[d.OPTION_NTPSERVER] = p.subnet.ntp_servers
if hasattr(p.subnet, 'lease_time'):
entries[d.OPTION_LEASE_TIME] = p.subnet.lease_time
# Routes is special
if hasattr(p.subnet, 'host_routes'):
routes = list(p.subnet.host_routes)
if routes and not any(parse_ip4_network(r[0]) == (0,0) for r in routes):
routes.append(['0.0.0.0/0', p.subnet.gateway])
entries[d.OPTION_CLASSLESSROUTE] = routes
# TODO: add extra routes from routers
if hasattr(p.subnet, 'extra_dhcp_options'):
entries.update(p.subnet.extra_dhcp_options)
options.update(d.create_dhcp_options(entries, True, True))
entries = {}
if hasattr(p, 'hostname'):
entries[d.OPTION_HOSTNAME] = p.hostname
if hasattr(p, 'extra_dhcp_options'):
entries.update(p.extra_dhcp_options)
options.update(d.create_dhcp_options(entries, True, True))
entries = {d.OPTION_SERVER_IDENTIFIER: server_address}
options.update(d.create_dhcp_options(entries, True, True))
options = dict((k,v) for k,v in options.items() if v is not None)
if d.OPTION_LEASE_TIME not in options:
options[d.OPTION_LEASE_TIME] = d.create_option_from_value(d.OPTION_LEASE_TIME, d.DHCPTIME_INFINITE)
if options[d.OPTION_LEASE_TIME].value != d.DHCPTIME_INFINITE:
leasetime = options[d.OPTION_LEASE_TIME].value
if d.OPTION_T1 not in options and t1 is not None and t1 < leasetime:
options[d.OPTION_T1] = d.create_option_from_value(d.OPTION_T1, t1)
if d.OPTION_T2 not in options and t2 is not None and t2 < leasetime:
options[d.OPTION_T1] = d.create_option_from_value(d.OPTION_T1, t2)
dhcp_entries[pid] = (mac_addr(mac_address), ip4_addr(ip_address),
ip4_addr(server_address), options)
except Exception:
self._logger.warning("Failed to create DHCP options for port id=%r. Will disable DHCP on this port",
p.id, exc_info = True)
self._dhcpentries = dhcp_entries
# Create flows
# For every logical port, create two flows
ofdef = connection.openflowdef
vhost = connection.protocol.vhost
l3 = self._parent._gettableindex('l3input', vhost)
cmds = []
if connection.protocol.disablenxext:
def match_network(nid):
return [ofdef.create_oxm(ofdef.OXM_OF_METADATA_W, ((nid & 0xffff) << 32) | (0xffff << 16),
b'\x00\x00\xff\xff\x40\x00\x00\x00')]
else:
def match_network(nid):
return [ofdef.create_oxm(ofdef.NXM_NX_REG5, nid),
ofdef.create_oxm(ofdef.NXM_NX_REG7_W, 0x4000, 0x4000)]
def _delete_flows(nid):
return ofdef.ofp_flow_mod(cookie = 0x1,
cookie_mask = 0xffffffffffffffff,
table_id = l3,
command = ofdef.OFPFC_DELETE,
priority = ofdef.OFP_DEFAULT_PRIORITY,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields =
match_network(nid) +
[ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE, ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO, ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]
)
)
def _delete_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(cookie = 0x1,
cookie_mask = 0xffffffffffffffff,
table_id = l3,
command = ofdef.OFPFC_DELETE,
priority = ofdef.OFP_DEFAULT_PRIORITY,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields =
match_network(nid) +
[ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE, ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO, ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]
)
)
def _create_flows(nid):
return ofdef.ofp_flow_mod(cookie = 0x1,
cookie_mask = 0xffffffffffffffff,
table_id = l3,
command = ofdef.OFPFC_ADD,
priority = ofdef.OFP_DEFAULT_PRIORITY,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields =
match_network(nid) +
[ofdef.create_oxm(ofdef.OXM_OF_ETH_DST_W, b'\x01\x00\x00\x00\x00\x00', b'\x01\x00\x00\x00\x00\x00'),
ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE, ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO, ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]
),
instructions = [
ofdef.ofp_instruction_actions(
actions = [
ofdef.ofp_action_output(port = ofdef.OFPP_CONTROLLER,
max_len = ofdef.OFPCML_NO_BUFFER
)
]
)
]
)
def _create_flows2(nid, serveraddr):
return ofdef.ofp_flow_mod(cookie = 0x1,
cookie_mask = 0xffffffffffffffff,
table_id = l3,
command = ofdef.OFPFC_ADD,
priority = ofdef.OFP_DEFAULT_PRIORITY,
buffer_id = ofdef.OFP_NO_BUFFER,
out_port = ofdef.OFPP_ANY,
out_group = ofdef.OFPG_ANY,
match = ofdef.ofp_match_oxm(
oxm_fields = match_network(nid) +
[ofdef.create_oxm(ofdef.OXM_OF_ETH_TYPE, ofdef.ETHERTYPE_IP),
ofdef.create_oxm(ofdef.OXM_OF_IP_PROTO, ofdef.IPPROTO_UDP),
ofdef.create_oxm(ofdef.OXM_OF_IPV4_DST,
ip4_addr_bytes(serveraddr)),
ofdef.create_oxm(ofdef.OXM_OF_UDP_DST, 67)
]
),
instructions = [
ofdef.ofp_instruction_actions(
actions = [
ofdef.ofp_action_output(port = ofdef.OFPP_CONTROLLER,
max_len = ofdef.OFPCML_NO_BUFFER
)
]
)
]
)
for n in removevalues:
if n in lastlognetinfo:
nid = lastlognetinfo[n]
cmds.append(_delete_flows(nid))
lastnetdict = dict((n.id,n) for n in lastlognetinfo)
for serveraddr in lastserveraddresses:
if serveraddr not in currentserveraddresses:
addr, _, networkid, _ = serveraddr
if networkid in lastnetdict:
n = lastnetdict[networkid]
nid = lastlognetinfo[n]
cmds.append(_delete_flows2(nid, addr))
for m in self.execute_commands(connection, cmds):
yield m
# Remove old ARP entries; Add new ARP entries
remove_arps = lastserveraddresses.difference(currentserveraddresses)
if remove_arps:
for m in callAPI(self, 'arpresponder', 'removeproxyarp', {'connection': connection,
'arpentries': remove_arps}):
yield m
add_arps = currentserveraddresses.difference(lastserveraddresses)
if add_arps:
for m in callAPI(self, 'arpresponder', 'createproxyarp', {'connection': connection,
'arpentries': add_arps}):
yield m
del cmds[:]
for n in addvalues:
if n in currentlognetinfo:
nid = currentlognetinfo[n]
cmds.append(_create_flows(nid))
currnetdict = dict((n.id,n) for n in currentlognetinfo)
for serveraddr in currentserveraddresses:
if serveraddr not in lastserveraddresses:
addr, _, networkid, _ = serveraddr
if networkid in currnetdict:
n = currnetdict[networkid]
nid = currentlognetinfo[n]
cmds.append(_create_flows2(nid, addr))
for m in self.execute_commands(connection, cmds):
yield m
except Exception:
self._logger.warning("Unexpected exception in DHCPUpdater. Will ignore and continue.", exc_info = True)
def parse_ip4_address(address):
return ip4_addr(address)
def addrouterinterface(keys, values):
rkeys = keys[0:len(routerkeys)]
robjs = values[0:len(routerkeys)]
snkeys = keys[len(routerkeys):len(routerkeys) + len(subnetkeys)]
snobjs = values[len(routerkeys):len(routerkeys) + len(subnetkeys)]
snmkeys = keys[len(routerkeys) + len(subnetkeys):len(routerkeys) +
len(subnetkeys) + len(subnetmapkeys)]
snmobjs = values[len(routerkeys) +
len(subnetkeys):len(routerkeys) +
len(subnetkeys) + len(subnetmapkeys)]
rpkeys = keys[len(routerkeys) + len(subnetkeys) +
len(subnetmapkeys):]
rpobjs = values[len(routerkeys) + len(subnetkeys) +
len(subnetmapkeys):]
rdict = dict(zip(rkeys, robjs))
sndict = dict(zip(snkeys, zip(snobjs, snmobjs)))
rpdict = dict(zip(rpkeys, rpobjs))
for i, interface in enumerate(newinterfaces):
routerport = interface['id']
router = interface['router']
subnet = interface['subnet']
routerobj = rdict.get(VRouter.default_key(router))
subnetobj, subnetmapobj = sndict.get(
SubNet.default_key(subnet))
newrouterport = newrouterportdict.get(
RouterPort.default_key(routerport))
routerport = rpdict.get(RouterPort.default_key(routerport))
if routerobj and subnetobj and subnetmapobj:
# now subnet only have one router ,,so check it
if not hasattr(subnetobj, 'router'):
# new router port special ip address , we check it in subnetmap
if hasattr(newrouterport, "ip_address"):
ipaddress = ip4_addr(newrouterport.ip_address)
n, p = parse_ip4_network(subnetobj.cidr)
if not ip_in_network(ipaddress, n, p):
raise ValueError(
" special ip address not in subnet cidr")
if str(ipaddress
) not in subnetmapobj.allocated_ips:
subnetmapobj.allocated_ips[str(
ipaddress
)] = newrouterport.create_weakreference()
else:
raise ValueError(
" ip address have used in subnet " +
newrouterport.ip_address)
else:
# not have special ip address, special gateway to this only router port
# gateway in subnet existed be sure
#
# when this case , special subnet gateway as ip_address
# but we do not set ip_address attr , when subnet gateway change ,
# we do not need to change router port attr
#setattr(newrouterport,"ip_address",subnetobj.gateway)
# it may be subnet not have gateway, checkout it
if not hasattr(subnetobj, "gateway"):
raise ValueError(
" interface not special ip_address and subnet has no gateway"
)
#routerport = set_new(routerport,newrouterport)
values[len(routerkeys) + len(subnetkeys) +
len(subnetmapkeys) + i] = set_new(
values[len(routerkeys) + len(subnetkeys) +
len(subnetmapkeys) + i],
routerportobjects[i])
subnetobj.router = newrouterport.create_weakreference()
routerobj.interfaces.dataset().add(
newrouterport.create_weakreference())
else:
raise ValueError(" subnet " + subnet +
" have router port " +
subnetobj.router.getkey())
else:
raise ValueError(" routerobj " + router + "or subnetobj " +
subnet + " not existed ")
return keys, values
def createendpoint(self, env, params):
lognet_id = 'docker-' + params['NetworkID'] + '-lognet'
subnet_id = 'docker-' + params['NetworkID'] + '-subnet'
logport_id = 'docker-' + params['EndpointID']
logport_params = {}
if 'Options' in params:
logport_params.update(params['Options'])
logport_params['id'] = logport_id
logport_params['logicalnetwork'] = lognet_id
logport_params['subnet'] = subnet_id
mac_address = None
if 'Interface' in params:
interface = params['Interface']
if 'Address' in interface and interface['Address']:
ip, f, prefix = interface['Address'].rpartition('/')
logport_params['ip_address'] = ip
else:
ip = None
if 'MacAddress' in interface and interface['MacAddress']:
logport_params['mac_address'] = interface['MacAddress']
mac_address = interface['MacAddress']
if mac_address is None:
# Generate a MAC address
if ip:
# Generate MAC address based on IP address
mac_num = self._macbase
mac_num ^= ((hash(subnet_id) & 0xffffffff) << 8)
mac_num ^= ip4_addr(ip)
else:
# Generate MAC address based on Port ID and random number
mac_num = self._macbase
mac_num ^= ((hash(logport_id) & 0xffffffff) << 8)
mac_num ^= randint(0, 0xffffffff)
mac_address = mac_addr_bytes.formatter(create_binary(mac_num, 6))
logport_params['mac_address'] = mac_address
for m in callAPI(self, 'viperflow', 'createlogicalport',
logport_params):
yield m
ip_address = self.retvalue[0]['ip_address']
subnet_cidr = self.retvalue[0]['subnet']['cidr']
mtu = self.retvalue[0]['network'].get('mtu', self._parent.mtu)
_, _, prefix = subnet_cidr.partition('/')
port_created = False
try:
for m in self._parent.taskpool.runTask(
self,
lambda: _create_veth(self._parent.ipcommand, self._parent.
vethprefix, mac_address, mtu)):
yield m
port_created = True
device_name, _ = self.retvalue
info = DockerInfo.create_instance(logport_id)
info.docker_port = device_name
@updater
def _updater(dockerinfo):
dockerinfo = set_new(dockerinfo, info)
return (dockerinfo, )
for m in callAPI(self, 'objectdb', 'transact', {
'keys': (info.getkey(), ),
'updater': _updater
}):
yield m
for m in self._parent.taskpool.runTask(
self,
lambda: _plug_ovs(self._parent.ovscommand, self._parent.
ovsbridge, device_name, logport_id)):
yield m
result = {'Interface': {'MacAddress': mac_address}}
if 'Address' not in interface:
result['Interface']['Address'] = ip_address + '/' + prefix
env.outputjson(result)
except Exception as exc:
try:
if port_created:
for m in self._parent.taskpool.runTask(
self, lambda: _delete_veth(self._parent.ipcommand,
device_name)):
yield m
except Exception:
pass
try:
for m in callAPI(self, 'viperflow', 'deletelogicalport',
{'id': logport_id}):
yield m
except Exception:
pass
raise exc
def walker(walk, write, timestamp):
with suppress(WalkKeyNotRetrieved):
pool = walk(reserve_key)
if pool is None:
raise ValueError('PoolID %r does not exist' % (poolid, ))
self._remove_staled_ips(pool, timestamp)
if hasattr(pool, 'subnetmap'):
subnetmap_key = pool.subnetmap.getkey()
subnet_key = SubNetMap._subnet.rightkey(subnetmap_key)
ensure_keys(walk, subnet_key, subnetmap_key)
subnetmap = walk(subnetmap_key)
subnet = walk(subnet_key)
else:
subnetmap = None
subnet = None
if address:
# check ip_address in cidr
if address in pool.reserved_ips:
raise ValueError("IP address " + address +
" has been reserved")
if pool.subpool:
cidr = pool.subpool
else:
cidr = pool.pool
network, mask = parse_ip4_network(cidr)
addr_num = ip4_addr(address)
if not ip_in_network(addr_num, network, mask):
raise ValueError('IP address ' + address +
" is not in the network CIDR")
if subnetmap is not None:
start = ip4_addr(subnet.allocated_start)
end = ip4_addr(subnet.allocated_end)
try:
assert start <= addr_num <= end
if hasattr(subnet, 'gateway'):
assert addr_num != ip4_addr(subnet.gateway)
except Exception:
raise ValueError("specified IP address " +
address + " is not valid")
if str(addr_num) in subnetmap.allocated_ips:
raise ValueError("IP address " + address +
" has been used")
new_address = address
else:
# allocated ip_address from cidr
gateway = None
cidr = pool.pool
if pool.subpool:
cidr = pool.subpool
network, prefix = parse_ip4_network(cidr)
start = network_first(network, prefix)
end = network_last(network, prefix)
if subnetmap is not None:
start = max(start, ip4_addr(subnet.allocated_start))
end = min(end, ip4_addr(subnet.allocated_end))
if hasattr(subnet, "gateway"):
gateway = ip4_addr(subnet.gateway)
for ip_address in range(start, end):
new_address = ip4_addr.formatter(ip_address)
if ip_address != gateway and \
(subnetmap is None or str(ip_address) not in subnetmap.allocated_ips) and \
new_address not in pool.reserved_ips:
break
else:
raise ValueError("No available IP address can be used")
pool.reserved_ips[
new_address] = timestamp + self.iptimeout * 1000000
_, mask = parse_ip4_network(pool.pool)
rets[:] = [new_address + '/' + str(mask)]
write(pool.getkey(), pool)
prepack = _prepack_dhcp_option,
padding = 1
)
dhcp_option_single_byte = nstruct(name = 'dhcp_option_single_byte',
base = dhcp_option,
criteria = lambda x: x.tag in (OPTION_PAD, OPTION_END),
init = packvalue(OPTION_PAD, 'tag'))
dhcp_option_address = nstruct((ip4_addr, 'value'),
name = 'dhcp_option_address',
base = dhcp_option,
criteria = lambda x: x.tag in (OPTION_NETMASK, OPTION_REQUESTED_IP, OPTION_SERVER_IDENTIFIER, OPTION_BROADCAST),
init = packvalue(OPTION_NETMASK, 'tag'))
dhcp_option_address._parse_from_value = lambda x: ip4_addr(x)
dhcp_time_value = enum('dhcp_time_value', globals(), uint32,
DHCPTIME_INFINITE = 0xffffffff
)
dhcp_option_time = nstruct((dhcp_time_value, 'value'),
name = 'dhcp_option_time',
base = dhcp_option,
criteria = lambda x: x.tag in (OPTION_TIME_OFFSET, OPTION_LEASE_TIME, OPTION_T1, OPTION_T2),
init = packvalue(OPTION_LEASE_TIME, 'tag')
)
dhcp_option_time._parse_from_value = lambda x: int(x) if x is not None and x != 'infinity' else DHCPTIME_INFINITE
dhcp_option_servers = nstruct((ip4_addr[0], 'value'),
def parse_ip4_address(address):
return ip4_addr(address)