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physical_router_config.py
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physical_router_config.py
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#
# Copyright (c) 2014 Juniper Networks, Inc. All rights reserved.
#
"""
This file contains implementation of inetconf interface for physical router
configuration manager
"""
from ncclient import manager
import copy
import time
import datetime
from cStringIO import StringIO
from dm_utils import DMUtils
from device_api.juniper_common_xsd import *
class PushConfigState(object):
PUSH_STATE_INIT = 0
PUSH_STATE_SUCCESS = 1
PUSH_STATE_RETRY = 2
REPUSH_INTERVAL = 15
REPUSH_MAX_INTERVAL = 300
PUSH_DELAY_PER_KB = 0.01
PUSH_DELAY_MAX = 100
PUSH_DELAY_ENABLE = True
@classmethod
def set_repush_interval(cls, value):
cls.REPUSH_INTERVAL = value
# end set_repush_interval
@classmethod
def set_repush_max_interval(cls, value):
cls.REPUSH_MAX_INTERVAL = value
# end set_repush_max_interval
@classmethod
def set_push_delay_per_kb(cls, value):
cls.PUSH_DELAY_PER_KB = value
# end set_push_delay_per_kb
@classmethod
def set_push_delay_max(cls, value):
cls.PUSH_DELAY_MAX = value
# end set_push_delay_max
@classmethod
def set_push_delay_enable(cls, value):
cls.PUSH_DELAY_ENABLE = value
# end set_push_delay_enable
@classmethod
def get_repush_interval(cls):
return cls.REPUSH_INTERVAL
# end set_repush_interval
@classmethod
def get_repush_max_interval(cls):
return cls.REPUSH_MAX_INTERVAL
# end get_repush_max_interval
@classmethod
def get_push_delay_per_kb(cls):
return cls.PUSH_DELAY_PER_KB
# end get_push_delay_per_kb
@classmethod
def get_push_delay_max(cls):
return cls.PUSH_DELAY_MAX
# end get_push_delay_max
@classmethod
def get_push_delay_enable(cls):
return cls.PUSH_DELAY_ENABLE
# end get_push_delay_enable
# end PushConfigState
class PhysicalRouterConfig(object):
# mapping from contrail family names to junos
_FAMILY_MAP = {
'route-target': '',
'inet-vpn': FamilyInetVpn(unicast=''),
'inet6-vpn': FamilyInet6Vpn(unicast=''),
'e-vpn': FamilyEvpn(signaling='')
}
def __init__(self, management_ip, user_creds,
vendor, product, logger=None):
self.management_ip = management_ip
self.user_creds = user_creds
self.vendor = vendor
self.product = product
self.reset_bgp_config()
self._logger = logger
self.push_config_state = PushConfigState.PUSH_STATE_INIT
self.commit_stats = {
'last_commit_time': '',
'last_commit_duration': '',
'commit_status_message': '',
'total_commits_sent_since_up': 0,
}
# end __init__
def update(self, management_ip, user_creds, vendor, product):
self.management_ip = management_ip
self.user_creds = user_creds
self.vendor = vendor
self.product = product
# end update
def get_commit_stats(self):
return self.commit_stats
# end get_commit_stats
def retry(self):
if self.push_config_state == PushConfigState.PUSH_STATE_RETRY:
return True
return False
# end retry
def get_xml_data(self, config):
xml_data = StringIO()
config.export(xml_data, 1)
xml_str = xml_data.getvalue()
return xml_str.replace("comment>", "junos:comment>", -1)
# end get_xml_data
def build_netconf_config(self, groups, operation='replace'):
groups.set_name("__contrail__")
configuraion = Configuration(groups=groups)
groups.set_operation(operation)
apply_groups = ApplyGroups(name="__contrail__")
configuraion.set_apply_groups(apply_groups)
if operation == "delete":
apply_groups.set_operation(operation)
conf = config(configuration=configuraion)
return conf
def send_netconf(self, new_config, default_operation="merge",
operation="replace"):
self.push_config_state = PushConfigState.PUSH_STATE_INIT
start_time = None
config_size = 0
try:
with manager.connect(host=self.management_ip, port=22,
username=self.user_creds['username'],
password=self.user_creds['password'],
unknown_host_cb=lambda x, y: True) as m:
new_config = self.build_netconf_config(new_config, operation)
config_str = self.get_xml_data(new_config)
self._logger.info("\nsend netconf message: %s\n" % config_str)
config_size = len(config_str)
m.edit_config(
target='candidate', config=config_str,
test_option='test-then-set',
default_operation=default_operation)
self.commit_stats['total_commits_sent_since_up'] += 1
start_time = time.time()
m.commit()
end_time = time.time()
self.commit_stats['commit_status_message'] = 'success'
self.commit_stats['last_commit_time'] = \
datetime.datetime.fromtimestamp(
end_time).strftime('%Y-%m-%d %H:%M:%S')
self.commit_stats['last_commit_duration'] = str(
end_time - start_time)
self.push_config_state = PushConfigState.PUSH_STATE_SUCCESS
except Exception as e:
if self._logger:
self._logger.error("Router %s: %s" % (self.management_ip,
e.message))
self.commit_stats[
'commit_status_message'] = 'failed to apply config,\
router response: ' + e.message
if start_time is not None:
self.commit_stats['last_commit_time'] = \
datetime.datetime.fromtimestamp(
start_time).strftime('%Y-%m-%d %H:%M:%S')
self.commit_stats['last_commit_duration'] = str(
time.time() - start_time)
self.push_config_state = PushConfigState.PUSH_STATE_RETRY
return config_size
# end send_config
def add_pnf_logical_interface(self, junos_interface):
if not self.interfaces_config:
self.interfaces_config = Interfaces(comment=DMUtils.interfaces_comment())
family = Family(inet=FamilyInet([Address(name=junos_interface.ip)]))
unit = Unit(name=junos_interface.unit, vlan_id=junos_interface.vlan_tag, family=family)
interface = Interface(name=junos_interface.ifd_name, unit=unit)
self.interfaces_config.add_interface(interface)
# end add_pnf_logical_interface
def add_lo0_unit_0_interface(self):
if not self.bgp_params or not self.bgp_params.get('address'):
return
if not self.interfaces_config:
self.interfaces_config = Interfaces(comment=DMUtils.interfaces_comment())
lo_intf = Interface(name="lo0")
self.interfaces_config.add_interface(lo_intf)
fam_inet = FamilyInet(address=[Address(name=self.bgp_params['address'] + "/32",
primary='', preferred='')])
intf_unit = Unit(name="0", family=Family(inet=fam_inet),
comment=DMUtils.lo0_unit_0_comment())
lo_intf.add_unit(intf_unit)
# end add_lo0_unit_0_interface
def add_static_routes(self, parent, static_routes):
static_config = parent.get_static()
if not static_config:
static_config = Static()
parent.set_static(static_config)
for dest, next_hops in static_routes.items():
route_config = Route(name=dest)
for next_hop in next_hops:
next_hop_str = next_hop.get("next-hop")
preference = next_hop.get("preference")
if not next_hop_str:
continue
if preference:
route_config.set_qualified_next_hop(QualifiedNextHop(
name=next_hop_str, preference=str(preference)))
else:
route_config.set_next_hop(next_hop_str)
static_config.add_route(route_config)
# end add_static_routes
def add_dynamic_tunnels(self, tunnel_source_ip,
ip_fabric_nets, bgp_router_ips):
dynamic_tunnel = DynamicTunnel(name=DMUtils.dynamic_tunnel_name(self.get_asn()),
source_address=tunnel_source_ip, gre='')
if ip_fabric_nets is not None:
for subnet in ip_fabric_nets.get("subnet", []):
dest_net = subnet['ip_prefix'] + '/' + str(subnet['ip_prefix_len'])
dynamic_tunnel.add_destination_networks(
DestinationNetworks(name=dest_net,
comment=DMUtils.ip_fabric_subnet_comment()))
for r_name, bgp_router_ip in bgp_router_ips.items():
dynamic_tunnel.add_destination_networks(
DestinationNetworks(name=bgp_router_ip + '/32',
comment=DMUtils.bgp_router_subnet_comment(r_name)))
dynamic_tunnels = DynamicTunnels()
dynamic_tunnels.add_dynamic_tunnel(dynamic_tunnel)
if self.global_routing_options_config is None:
self.global_routing_options_config = RoutingOptions(comment=DMUtils.routing_options_comment())
self.global_routing_options_config.set_dynamic_tunnels(dynamic_tunnels)
# end add_dynamic_tunnels
def add_inet_public_vrf_filter(self, forwarding_options_config,
firewall_config, inet_type):
fo = Family()
inet_filter = InetFilter(input=DMUtils.make_public_vrf_filter_name(inet_type))
if inet_type == 'inet6':
fo.set_inet6(FamilyInet6(filter=inet_filter))
else:
fo.set_inet(FamilyInet(filter=inet_filter))
forwarding_options_config.add_family(fo)
f = FirewallFilter(name=DMUtils.make_public_vrf_filter_name(inet_type))
f.set_comment(DMUtils.public_vrf_filter_comment())
ff = firewall_config.get_family()
if not ff:
ff = FirewallFamily()
firewall_config.set_family(ff)
if inet_type == 'inet6':
inet6 = ff.get_inet6()
if not inet6:
inet6 = FirewallInet()
ff.set_inet6(inet6)
inet6.add_filter(f)
else:
inet = ff.get_inet()
if not inet:
inet = FirewallInet()
ff.set_inet(inet)
inet.add_filter(f)
term = Term(name="default-term", then=Then(accept=''))
f.add_term(term)
return f
# end add_inet_public_vrf_filter
def add_inet_filter_term(self, ri_name, prefixes, inet_type):
if inet_type == 'inet6':
prefixes = DMUtils.get_ipv6_prefixes(prefixes)
else:
prefixes = DMUtils.get_ipv4_prefixes(prefixes)
from_ = From()
for prefix in prefixes:
from_.add_destination_address(prefix)
then_ = Then()
then_.add_routing_instance(ri_name)
return Term(name=DMUtils.make_vrf_term_name(ri_name),
fromxx=from_, then=then_)
# end add_inet_filter_term
'''
ri_name: routing instance name to be configured on mx
is_l2: a flag used to indicate routing instance type, i.e : l2 or l3
is_l2_l3: VN forwarding mode is of type 'l2_l3' or not
import/export targets: routing instance import, export targets
prefixes: for l3 vrf static routes and for public vrf filter terms
gateways: for l2 evpn, bug#1395944
router_external: this indicates the routing instance configured is for
the public network
interfaces: logical interfaces to be part of vrf
fip_map: contrail instance ip to floating-ip map, used for snat & floating ip support
network_id : this is used for configuraing irb interfaces
static_routes: this is used for add PNF vrf static routes
no_vrf_table_label: if this is set to True will not generate vrf table label knob
restrict_proxy_arp: proxy-arp restriction config is generated for irb interfaces
only if vn is external and has fip map
highest_enapsulation_priority: highest encapsulation configured
'''
def add_routing_instance(self, ri_conf):
ri_name = ri_conf.get("ri_name")
vn = ri_conf.get("vn")
is_l2 = ri_conf.get("is_l2", False)
is_l2_l3 = ri_conf.get("is_l2_l3", False)
import_targets = ri_conf.get("import_targets", set())
export_targets = ri_conf.get("export_targets", set())
prefixes = ri_conf.get("prefixes", [])
gateways = ri_conf.get("gateways", [])
router_external = ri_conf.get("router_external", False)
interfaces = ri_conf.get("interfaces", [])
vni = ri_conf.get("vni", None)
fip_map = ri_conf.get("fip_map", None)
network_id = ri_conf.get("network_id", None)
static_routes = ri_conf.get("static_routes", {})
no_vrf_table_label = ri_conf.get("no_vrf_table_label", False)
restrict_proxy_arp = ri_conf.get("restrict_proxy_arp", False)
highest_enapsulation_priority = \
ri_conf.get("highest_enapsulation_priority") or "MPLSoGRE"
self.routing_instances[ri_name] = ri_conf
ri_config = self.ri_config or RoutingInstances(comment=DMUtils.routing_instances_comment())
policy_config = self.policy_config or PolicyOptions(comment=DMUtils.policy_options_comment())
ri = Instance(name=ri_name)
if vn:
is_nat = True if fip_map else False
ri.set_comment(DMUtils.vn_ri_comment(vn, is_l2, is_l2_l3, is_nat))
ri_config.add_instance(ri)
ri_opt = None
if router_external and is_l2 == False:
ri_opt = RoutingInstanceRoutingOptions(
static=Static(route=[Route(name="0.0.0.0/0",
next_table="inet.0",
comment=DMUtils.public_vrf_route_comment())]))
ri.set_routing_options(ri_opt)
# for both l2 and l3
ri.set_vrf_import(DMUtils.make_import_name(ri_name))
ri.set_vrf_export(DMUtils.make_export_name(ri_name))
has_ipv6_prefixes = DMUtils.has_ipv6_prefixes(prefixes)
has_ipv4_prefixes = DMUtils.has_ipv4_prefixes(prefixes)
if not is_l2:
if ri_opt is None:
ri_opt = RoutingInstanceRoutingOptions()
ri.set_routing_options(ri_opt)
if prefixes and fip_map is None:
static_config = ri_opt.get_static()
if not static_config:
static_config = Static()
ri_opt.set_static(static_config)
rib_config_v6 = None
static_config_v6 = None
for prefix in prefixes:
if ':' in prefix and not rib_config_v6:
static_config_v6 = Static()
rib_config_v6 = RIB(name=ri_name + ".inet6.0")
rib_config_v6.set_static(static_config_v6)
ri_opt.set_rib(rib_config_v6)
if ':' in prefix:
static_config_v6.add_route(Route(name=prefix, discard=''))
else:
static_config.add_route(Route(name=prefix, discard=''))
if router_external:
self.add_to_global_ri_opts(prefix)
ri.set_instance_type("vrf")
if not no_vrf_table_label:
ri.set_vrf_table_label('') # only for l3
if fip_map is None:
for interface in interfaces:
ri.add_interface(Interface(name=interface.name))
if static_routes:
self.add_static_routes(ri_opt, static_routes)
if has_ipv4_prefixes:
ri_opt.set_auto_export(AutoExport(family=Family(inet=FamilyInet(unicast=''))))
if has_ipv6_prefixes:
ri_opt.set_auto_export(AutoExport(family=Family(inet6=FamilyInet6(unicast=''))))
else:
if highest_enapsulation_priority == "VXLAN":
ri.set_instance_type("virtual-switch")
elif highest_enapsulation_priority in ["MPLSoGRE", "MPLSoUDP"]:
ri.set_instance_type("evpn")
if fip_map is not None:
if ri_opt is None:
ri_opt = RoutingInstanceRoutingOptions()
ri.set_routing_options(ri_opt)
static_config = ri_opt.get_static()
if not static_config:
static_config = Static()
ri_opt.set_static(static_config)
static_config.add_route(Route(name="0.0.0.0/0",
next_hop=interfaces[0].name,
comment=DMUtils.fip_ingress_comment()))
ri.add_interface(Interface(name=interfaces[0].name))
public_vrf_ips = {}
for pip in fip_map.values():
if pip["vrf_name"] not in public_vrf_ips:
public_vrf_ips[pip["vrf_name"]] = set()
public_vrf_ips[pip["vrf_name"]].add(pip["floating_ip"])
for public_vrf, fips in public_vrf_ips.items():
ri_public = Instance(name=public_vrf)
ri_config.add_instance(ri_public)
ri_public.add_interface(Interface(name=interfaces[1].name))
ri_opt = RoutingInstanceRoutingOptions()
ri_public.set_routing_options(ri_opt)
static_config = Static()
ri_opt.set_static(static_config)
for fip in fips:
static_config.add_route(Route(name=fip + "/32",
next_hop=interfaces[1].name,
comment=DMUtils.fip_egress_comment()))
# add policies for export route targets
ps = PolicyStatement(name=DMUtils.make_export_name(ri_name))
ps.set_comment(DMUtils.vn_ps_comment(vn, "Export"))
then = Then()
ps.set_term(Term(name="t1", then=then))
for route_target in export_targets:
comm = Community(add='',
community_name=DMUtils.make_community_name(route_target))
then.add_community(comm)
if fip_map is not None:
# for nat instance
then.set_reject('')
else:
then.set_accept('')
policy_config.add_policy_statement(ps)
# add policies for import route targets
ps = PolicyStatement(name=DMUtils.make_import_name(ri_name))
ps.set_comment(DMUtils.vn_ps_comment(vn, "Import"))
from_ = From()
term = Term(name="t1", fromxx=from_)
ps.set_term(term)
for route_target in import_targets:
from_.add_community(DMUtils.make_community_name(route_target))
term.set_then(Then(accept=''))
ps.set_then(Then(reject=''))
policy_config.add_policy_statement(ps)
# add firewall config for public VRF
forwarding_options_config = self.forwarding_options_config
firewall_config = self.firewall_config
if router_external and is_l2 == False:
forwarding_options_config = (self.forwarding_options_config or
ForwardingOptions(DMUtils.forwarding_options_comment()))
firewall_config = self.firewall_config or Firewall(DMUtils.firewall_comment())
if has_ipv4_prefixes and not self.inet4_forwarding_filter:
#create single instance inet4 filter
self.inet4_forwarding_filter = self.add_inet_public_vrf_filter(
forwarding_options_config,
firewall_config, "inet")
if has_ipv6_prefixes and not self.inet6_forwarding_filter:
#create single instance inet6 filter
self.inet6_forwarding_filter = self.add_inet_public_vrf_filter(
forwarding_options_config,
firewall_config, "inet6")
if has_ipv4_prefixes:
#add terms to inet4 filter
term = self.add_inet_filter_term(ri_name, prefixes, "inet4")
# insert before the last term
terms = self.inet4_forwarding_filter.get_term()
terms = [term] + (terms or [])
self.inet4_forwarding_filter.set_term(terms)
if has_ipv6_prefixes:
#add terms to inet6 filter
term = self.add_inet_filter_term(ri_name, prefixes, "inet6")
# insert before the last term
terms = self.inet6_forwarding_filter.get_term()
terms = [term] + (terms or [])
self.inet6_forwarding_filter.set_term(terms)
if fip_map is not None:
firewall_config = firewall_config or Firewall(DMUtils.firewall_comment())
f = FirewallFilter(name=DMUtils.make_private_vrf_filter_name(ri_name))
f.set_comment(DMUtils.vn_firewall_comment(vn, "private"))
ff = firewall_config.get_family()
if not ff:
ff = FirewallFamily()
firewall_config.set_family(ff)
inet = ff.get_inet()
if not inet:
inet = FirewallInet()
ff.set_inet(inet)
inet.add_filter(f)
term = Term(name=DMUtils.make_vrf_term_name(ri_name))
from_ = From()
for fip_user_ip in fip_map.keys():
from_.add_source_address(fip_user_ip)
term.set_from(from_)
term.set_then(Then(routing_instance=[ri_name]))
f.add_term(term)
term = Term(name="default-term", then=Then(accept=''))
f.add_term(term)
interfaces_config = self.interfaces_config or Interfaces(comment=DMUtils.interfaces_comment())
irb_intf = Interface(name="irb")
interfaces_config.add_interface(irb_intf)
intf_unit = Unit(name=str(network_id),
comment=DMUtils.vn_irb_fip_inet_comment(vn))
if restrict_proxy_arp:
intf_unit.set_proxy_arp(ProxyArp(restricted=''))
inet = FamilyInet()
inet.set_filter(InetFilter(input=DMUtils.make_private_vrf_filter_name(ri_name)))
intf_unit.set_family(Family(inet=inet))
irb_intf.add_unit(intf_unit)
# add L2 EVPN and BD config
bd_config = None
interfaces_config = self.interfaces_config
proto_config = self.proto_config
if (is_l2 and vni is not None and
self.is_family_configured(self.bgp_params, "e-vpn")):
ri.set_vtep_source_interface("lo0.0")
if highest_enapsulation_priority == "VXLAN":
bd_config = BridgeDomains()
ri.set_bridge_domains(bd_config)
bd = Domain(name=DMUtils.make_bridge_name(vni), vlan_id='none', vxlan=VXLan(vni=vni))
bd.set_comment(DMUtils.vn_bd_comment(vn, "VXLAN"))
bd_config.add_domain(bd)
for interface in interfaces:
bd.add_interface(Interface(name=interface.name))
if is_l2_l3:
# network_id is unique, hence irb
bd.set_routing_interface("irb." + str(network_id))
ri.set_protocols(RoutingInstanceProtocols(
evpn=Evpn(encapsulation='vxlan', extended_vni_list='all')))
elif highest_enapsulation_priority in ["MPLSoGRE", "MPLSoUDP"]:
ri.set_vlan_id('none')
if is_l2_l3:
# network_id is unique, hence irb
ri.set_routing_interface("irb." + str(network_id))
evpn = Evpn()
evpn.set_comment(DMUtils.vn_evpn_comment(vn, highest_enapsulation_priority))
for interface in interfaces:
evpn.add_interface(Interface(name=interface.name))
ri.set_protocols(RoutingInstanceProtocols(evpn=evpn))
interfaces_config = self.interfaces_config or Interfaces(comment=DMUtils.interfaces_comment())
if is_l2_l3:
irb_intf = Interface(name='irb', gratuitous_arp_reply='')
interfaces_config.add_interface(irb_intf)
if gateways is not None:
intf_unit = Unit(name=str(network_id),
comment=DMUtils.vn_irb_comment(vn, False, is_l2_l3))
irb_intf.add_unit(intf_unit)
family = Family()
intf_unit.set_family(family)
inet = None
inet6 = None
for (irb_ip, gateway) in gateways:
if ':' in irb_ip:
if not inet6:
inet6 = FamilyInet6()
family.set_inet6(inet6)
addr = Address()
inet6.add_address(addr)
else:
if not inet:
inet = FamilyInet()
family.set_inet(inet)
addr = Address()
inet.add_address(addr)
addr.set_name(irb_ip)
addr.set_comment(DMUtils.irb_ip_comment(irb_ip))
if len(gateway) and gateway != '0.0.0.0':
addr.set_virtual_gateway_address(gateway)
self.build_l2_evpn_interface_config(interfaces_config, interfaces, vn)
if (not is_l2 and not is_l2_l3 and gateways):
interfaces_config = self.interfaces_config or Interfaces(comment=DMUtils.interfaces_comment())
ifl_num = str(1000 + int(network_id))
lo_intf = Interface(name="lo0")
interfaces_config.add_interface(lo_intf)
intf_unit = Unit(name=ifl_num, comment=DMUtils.l3_lo_intf_comment(vn))
lo_intf.add_unit(intf_unit)
family = Family()
intf_unit.set_family(family)
inet = None
inet6 = None
for (lo_ip, _) in gateways:
(ip, _) = lo_ip.split('/')
if ':' in lo_ip:
if not inet6:
inet6 = FamilyInet6()
family.set_inet6(inet6)
addr = Address()
inet6.add_address(addr)
lo_ip = ip + '/' + '128'
else:
if not inet:
inet = FamilyInet()
family.set_inet(inet)
addr = Address()
inet.add_address(addr)
lo_ip = ip + '/' + '32'
addr.set_name(lo_ip)
addr.set_comment(DMUtils.lo0_ip_comment(lo0_ip))
ri.add_interface(Interface(name="lo0." + ifl_num,
comment=DMUtils.lo0_ri_intf_comment(vn)))
# fip services config
services_config = self.services_config
if fip_map is not None:
services_config = self.services_config or Services()
services_config.set_comment(DMUtils.services_comment())
service_name = DMUtils.make_services_set_name(ri_name)
service_set = ServiceSet(name=service_name)
service_set.set_comment(DMUtils.service_set_comment(vn))
services_config.add_service_set(service_set)
nat_rule = NATRules(name=service_name + "-sn-rule")
service_set.add_nat_rules(NATRules(name=DMUtils.make_snat_rule_name(ri_name),
comment=DMUtils.service_set_nat_rule_comment(vn, "SNAT")))
service_set.add_nat_rules(NATRules(name=DMUtils.make_dnat_rule_name(ri_name),
comment=DMUtils.service_set_nat_rule_comment(vn, "DNAT")))
next_hop_service = NextHopService(inside_service_interface = interfaces[0].name,
outside_service_interface = interfaces[1].name)
service_set.set_next_hop_service(next_hop_service)
nat = NAT(allow_overlapping_nat_pools='')
nat.set_comment(DMUtils.nat_comment())
services_config.add_nat(nat)
snat_rule = Rule(name=DMUtils.make_snat_rule_name(ri_name),
match_direction="input")
snat_rule.set_comment(DMUtils.snat_rule_comment())
nat.add_rule(snat_rule)
dnat_rule = Rule(name=DMUtils.make_dnat_rule_name(ri_name),
match_direction="output")
dnat_rule.set_comment(DMUtils.dnat_rule_comment())
nat.add_rule(dnat_rule)
for pip, fip_vn in fip_map.items():
fip = fip_vn["floating_ip"]
term = Term(name=DMUtils.make_ip_term_name(pip))
snat_rule.set_term(term)
# private ip
from_ = From(source_address=[pip + "/32"])
term.set_from(from_)
# public ip
then_ = Then()
term.set_then(then_)
translated = Translated(source_prefix=fip + "/32",
translation_type=TranslationType(basic_nat44=''))
then_.set_translated(translated)
term = Term(name=DMUtils.make_ip_term_name(fip))
dnat_rule.set_term(term)
# public ip
from_ = From(destination_address=[fip + "/32"])
term.set_from(from_)
# private ip
then_ = Then()
term.set_then(then_)
translated = Translated(destination_prefix=pip + "/32",
translation_type=TranslationType(dnat_44=''))
then_.set_translated(translated)
interfaces_config = self.interfaces_config or Interfaces(comment=DMUtils.interfaces_comment())
si_intf = Interface(name=interfaces[0].ifd_name,
comment=DMUtils.service_ifd_comment())
interfaces_config.add_interface(si_intf)
intf_unit = Unit(name=interfaces[0].unit,
comment=DMUtils.service_intf_comment("Ingress"))
si_intf.add_unit(intf_unit)
family = Family(inet=FamilyInet())
intf_unit.set_family(family)
intf_unit.set_service_domain("inside")
intf_unit = Unit(name=interfaces[1].unit,
comment=DMUtils.service_intf_comment("Egress"))
si_intf.add_unit(intf_unit)
family = Family(inet=FamilyInet())
intf_unit.set_family(family)
intf_unit.set_service_domain("outside")
self.forwarding_options_config = forwarding_options_config
self.firewall_config = firewall_config
self.policy_config = policy_config
self.proto_config = proto_config
self.interfaces_config = interfaces_config
self.services_config = services_config
self.route_targets |= import_targets | export_targets
self.ri_config = ri_config
# end add_routing_instance
def build_l2_evpn_interface_config(self, interfaces_config, interfaces, vn=None):
ifd_map = {}
for interface in interfaces:
ifd_map.setdefault(interface.ifd_name, []).append(interface)
for ifd_name, interface_list in ifd_map.items():
intf = Interface(name=ifd_name)
interfaces_config.add_interface(intf)
if interface_list[0].is_untagged():
if (len(interface_list) > 1):
self._logger.error(
"invalid logical interfaces config for ifd %s" % (
ifd_name))
continue
intf.set_encapsulation("ethernet-bridge")
intf.add_unit(Unit(name=interface_list[0].unit,
comment=DMUtils.l2_evpn_intf_unit_comment(vn, False),
family=Family(bridge='')))
else:
intf.set_flexible_vlan_tagging('')
intf.set_encapsulation("flexible-ethernet-services")
for interface in interface_list:
intf.add_unit(Unit(name=interface.unit,
comment=DMUtils.l2_evpn_intf_unit_comment(vn,
True, interface.vlan_tag),
encapsulation='vlan-bridge',
vlan_id=str(interface.vlan_tag)))
# end build_l2_evpn_interface_config
def set_global_routing_options(self, bgp_params):
if bgp_params['address'] is not None:
if not self.global_routing_options_config:
self.global_routing_options_config = RoutingOptions(comment=DMUtils.routing_options_comment())
self.global_routing_options_config.set_router_id(bgp_params['address'])
# end set_global_routing_options
def add_to_global_ri_opts(self, prefix):
if not prefix:
return
if self.global_routing_options_config is None:
self.global_routing_options_config = RoutingOptions(comment=DMUtils.routing_options_comment())
static_config = Static()
if ':' in prefix:
rib_config_v6 = RIB(name='inet6.0')
rib_config_v6.set_static(static_config)
self.global_routing_options_config.add_rib(rib_config_v6)
else:
self.global_routing_options_config.add_static(static_config)
static_config.add_route(Route(name=prefix, discard=''))
# end add_to_global_ri_opts
def is_family_configured(self, params, family_name):
if params is None or params.get('address_families') is None:
return False
families = params['address_families'].get('family', [])
if family_name in families:
return True
return False
def add_families(self, parent, params):
if params.get('address_families') is None:
return
families = params['address_families'].get('family', [])
if not families:
return
family_etree = Family()
parent.set_family(family_etree)
for family in families:
fam = family.replace('-', '_')
if family in ['e-vpn', 'e_vpn']:
fam = 'evpn'
if family in self._FAMILY_MAP:
getattr(family_etree, "set_" + fam)(self._FAMILY_MAP[family])
else:
getattr(family_etree, "set_" + fam)('')
# end add_families
def add_bgp_auth_config(self, bgp_config, bgp_params):
if bgp_params.get('auth_data') is None:
return
keys = bgp_params['auth_data'].get('key_items', [])
if len(keys) > 0:
bgp_config.set_authentication_key(keys[0].get('key'))
def add_bgp_hold_time_config(self, bgp_config, bgp_params):
if bgp_params.get('hold_time') is None:
return
bgp_config.set_hold_time(bgp_params.get('hold_time'))
def set_bgp_config(self, params, bgp_obj):
self.bgp_params = params
self.bgp_obj = bgp_obj
# end set_bgp_config
def _get_bgp_config_xml(self, external=False):
if self.bgp_params is None:
return None
bgp_group = BgpGroup()
bgp_group.set_comment(DMUtils.bgp_group_comment(self.bgp_obj))
if external:
bgp_group.set_name(DMUtils.make_bgp_group_name(self.get_asn(), True))
bgp_group.set_type('external')
bgp_group.set_multihop('')
else:
bgp_group.set_name(DMUtils.make_bgp_group_name(self.get_asn(), False))
bgp_group.set_type('internal')
bgp_group.set_local_address(self.bgp_params['address'])
self.add_families(bgp_group, self.bgp_params)
self.add_bgp_auth_config(bgp_group, self.bgp_params)
self.add_bgp_hold_time_config(bgp_group, self.bgp_params)
return bgp_group
# end _get_bgp_config_xml
def reset_bgp_config(self):
self.routing_instances = {}
self.bgp_params = None
self.bgp_obj = None
self.ri_config = None
self.interfaces_config = None
self.services_config = None
self.policy_config = None
self.firewall_config = None
self.inet4_forwarding_filter = None
self.inet6_forwarding_filter = None
self.forwarding_options_config = None
self.global_routing_options_config = None
self.proto_config = None
self.route_targets = set()
self.bgp_peers = {}
self.external_peers = {}
# ene reset_bgp_config
def delete_bgp_config(self):
self.reset_bgp_config()
self.send_netconf(Groups(), default_operation="none", operation="delete")
# end delete_config
def add_bgp_peer(self, router, params, attr, external, peer):
peer_data = {}
peer_data['params'] = params
peer_data['attr'] = attr
peer_data['obj'] = peer
if external:
self.external_peers[router] = peer_data
else:
self.bgp_peers[router] = peer_data
# end add_peer
def _get_neighbor_config_xml(self, bgp_config, peers):
for peer, peer_data in peers.items():
obj = peer_data.get('obj')
params = peer_data.get('params', {})
attr = peer_data.get('attr', {})
nbr = BgpGroup(name=peer)
nbr.set_comment(DMUtils.bgp_group_comment(obj))
bgp_config.add_neighbor(nbr)
bgp_sessions = attr.get('session')
if bgp_sessions:
# for now assume only one session
session_attrs = bgp_sessions[0].get('attributes', [])
for session_attr in session_attrs:
# For not, only consider the attribute if bgp-router is
# not specified
if session_attr.get('bgp_router') is None:
self.add_families(nbr, session_attr)
self.add_bgp_auth_config(nbr, session_attr)
break
peer_as = params.get('local_autonomous_system') or params.get('autonomous_system')
nbr.set_peer_as(peer_as)
# end _get_neighbor_config_xml
def get_asn(self):
return self.bgp_params.get('local_autonomous_system') or self.bgp_params.get('autonomous_system')
def set_as_config(self):
if self.global_routing_options_config is None:
self.global_routing_options_config = RoutingOptions(comment=DMUtils.routing_options_comment())
self.global_routing_options_config.set_route_distinguisher_id(self.bgp_params['identifier'])
self.global_routing_options_config.set_autonomous_system(str(self.get_asn()))
# end set_as_config
def set_route_targets_config(self):
if self.policy_config is None:
self.policy_config = PolicyOptions(comment=DMUtils.policy_options_comment())
for route_target in self.route_targets:
comm = CommunityType(name=DMUtils.make_community_name(route_target),
members=route_target)
self.policy_config.add_community(comm)
# end set_route_targets_config
def set_bgp_group_config(self):
bgp_config = self._get_bgp_config_xml()
if bgp_config is None:
return False
if self.proto_config is None:
self.proto_config = Protocols(comment=DMUtils.protocols_comment())
bgp = Bgp()
self.proto_config.set_bgp(bgp)
bgp.add_group(bgp_config)
self._get_neighbor_config_xml(bgp_config, self.bgp_peers)
if self.external_peers is not None:
ext_grp_config = self._get_bgp_config_xml(True)
bgp.add_group(ext_grp_config)
self._get_neighbor_config_xml(ext_grp_config, self.external_peers)
return True
# end set_bgp_group_config
def send_bgp_config(self):
if not self.set_bgp_group_config():
return 0
self.set_as_config()
self.set_route_targets_config()
groups = Groups()
groups.set_comment(DMUtils.groups_comment())
groups.set_routing_instances(self.ri_config)
groups.set_interfaces(self.interfaces_config)
groups.set_services(self.services_config)
groups.set_policy_options(self.policy_config)
groups.set_firewall(self.firewall_config)
groups.set_forwarding_options(self.forwarding_options_config)
groups.set_routing_options(self.global_routing_options_config)
groups.set_protocols(self.proto_config)
return self.send_netconf(groups)
# end send_bgp_config
# end PhycalRouterConfig
class JunosInterface(object):
def __init__(self, if_name, if_type, if_vlan_tag=0, if_ip=None):
self.name = if_name
self.if_type = if_type
self.vlan_tag = if_vlan_tag
ifparts = if_name.split('.')
self.ifd_name = ifparts[0]
self.unit = ifparts[1]
self.ip = if_ip
# end __init__
def is_untagged(self):
if not self.vlan_tag:
return True
return False
# end is_untagged
# end JunosInterface