def create_subnet(context, subnet):
"""Create a subnet.
Create a subnet which represents a range of IP addresses
that can be allocated to devices
: param context: neutron api request context
: param subnet: dictionary describing the subnet, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_subnet for tenant %s" % context.tenant_id)
net_id = subnet["subnet"]["network_id"]
with context.session.begin():
net = db_api.network_find(context, None, None, None, False,
id=net_id, scope=db_api.ONE)
if not net:
raise exceptions.NetworkNotFound(net_id=net_id)
sub_attrs = subnet["subnet"]
always_pop = ["enable_dhcp", "ip_version", "first_ip", "last_ip",
"_cidr"]
admin_only = ["segment_id", "do_not_use", "created_at",
"next_auto_assign_ip"]
utils.filter_body(context, sub_attrs, admin_only, always_pop)
_validate_subnet_cidr(context, net_id, sub_attrs["cidr"])
cidr = netaddr.IPNetwork(sub_attrs["cidr"])
err_vals = {'cidr': sub_attrs["cidr"], 'network_id': net_id}
err = _("Requested subnet with cidr: %(cidr)s for "
"network: %(network_id)s. Prefix is too small, must be a "
"larger subnet. A prefix less than /%(prefix)s is required.")
if cidr.version == 6 and cidr.prefixlen > 64:
err_vals["prefix"] = 65
err_msg = err % err_vals
raise exceptions.InvalidInput(error_message=err_msg)
elif cidr.version == 4 and cidr.prefixlen > 30:
err_vals["prefix"] = 31
err_msg = err % err_vals
raise exceptions.InvalidInput(error_message=err_msg)
# Enforce subnet quotas
net_subnets = get_subnets(context,
filters=dict(network_id=net_id))
if not context.is_admin:
v4_count, v6_count = 0, 0
for subnet in net_subnets:
if netaddr.IPNetwork(subnet['cidr']).version == 6:
v6_count += 1
else:
v4_count += 1
if cidr.version == 6:
tenant_quota_v6 = context.session.query(qdv.Quota).filter_by(
tenant_id=context.tenant_id,
resource='v6_subnets_per_network').first()
if tenant_quota_v6 != -1:
quota.QUOTAS.limit_check(
context, context.tenant_id,
v6_subnets_per_network=v6_count + 1)
else:
tenant_quota_v4 = context.session.query(qdv.Quota).filter_by(
tenant_id=context.tenant_id,
resource='v4_subnets_per_network').first()
if tenant_quota_v4 != -1:
quota.QUOTAS.limit_check(
context, context.tenant_id,
v4_subnets_per_network=v4_count + 1)
# See RM981. The default behavior of setting a gateway unless
# explicitly asked to not is no longer desirable.
gateway_ip = utils.pop_param(sub_attrs, "gateway_ip")
dns_ips = utils.pop_param(sub_attrs, "dns_nameservers", [])
host_routes = utils.pop_param(sub_attrs, "host_routes", [])
allocation_pools = utils.pop_param(sub_attrs, "allocation_pools", None)
sub_attrs["network"] = net
new_subnet = db_api.subnet_create(context, **sub_attrs)
cidrs = []
alloc_pools = allocation_pool.AllocationPools(sub_attrs["cidr"],
allocation_pools)
if isinstance(allocation_pools, list):
cidrs = alloc_pools.get_policy_cidrs()
quota.QUOTAS.limit_check(
context,
context.tenant_id,
alloc_pools_per_subnet=len(alloc_pools))
ip_policies.ensure_default_policy(cidrs, [new_subnet])
new_subnet["ip_policy"] = db_api.ip_policy_create(context,
exclude=cidrs)
quota.QUOTAS.limit_check(context, context.tenant_id,
routes_per_subnet=len(host_routes))
default_route = None
for route in host_routes:
netaddr_route = netaddr.IPNetwork(route["destination"])
if netaddr_route.value == routes.DEFAULT_ROUTE.value:
if default_route:
raise q_exc.DuplicateRouteConflict(
subnet_id=new_subnet["id"])
default_route = route
gateway_ip = default_route["nexthop"]
alloc_pools.validate_gateway_excluded(gateway_ip)
new_subnet["routes"].append(db_api.route_create(
context, cidr=route["destination"], gateway=route["nexthop"]))
quota.QUOTAS.limit_check(context, context.tenant_id,
dns_nameservers_per_subnet=len(dns_ips))
for dns_ip in dns_ips:
new_subnet["dns_nameservers"].append(db_api.dns_create(
context, ip=netaddr.IPAddress(dns_ip)))
# if the gateway_ip is IN the cidr for the subnet and NOT excluded by
# policies, we should raise a 409 conflict
if gateway_ip and default_route is None:
alloc_pools.validate_gateway_excluded(gateway_ip)
new_subnet["routes"].append(db_api.route_create(
context, cidr=str(routes.DEFAULT_ROUTE), gateway=gateway_ip))
subnet_dict = v._make_subnet_dict(new_subnet)
subnet_dict["gateway_ip"] = gateway_ip
n_rpc.get_notifier("network").info(
context,
"ip_block.create",
dict(tenant_id=subnet_dict["tenant_id"],
ip_block_id=subnet_dict["id"],
created_at=new_subnet["created_at"]))
return subnet_dict
def create_port(context, port):
"""Create a port
Create a port which is a connection point of a device (e.g., a VM
NIC) to attach to a L2 Neutron network.
: param context: neutron api request context
: param port: dictionary describing the port, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_port for tenant %s" % context.tenant_id)
port_attrs = port["port"]
admin_only = ["mac_address", "device_owner", "bridge", "admin_state_up",
"use_forbidden_mac_range"]
utils.filter_body(context, port_attrs, admin_only=admin_only)
port_attrs = port["port"]
mac_address = utils.pop_param(port_attrs, "mac_address", None)
use_forbidden_mac_range = utils.pop_param(port_attrs,
"use_forbidden_mac_range", False)
segment_id = utils.pop_param(port_attrs, "segment_id")
fixed_ips = utils.pop_param(port_attrs, "fixed_ips")
if "device_id" not in port_attrs:
port_attrs['device_id'] = ""
device_id = port_attrs['device_id']
net_id = port_attrs["network_id"]
port_id = uuidutils.generate_uuid()
net = db_api.network_find(context, None, None, None, False, id=net_id,
scope=db_api.ONE)
if not net:
raise exceptions.NetworkNotFound(net_id=net_id)
_raise_if_unauthorized(context.tenant_id, net)
# NOTE (Perkins): If a device_id is given, try to prevent multiple ports
# from being created for a device already attached to the network
if device_id:
existing_ports = db_api.port_find(context,
network_id=net_id,
device_id=device_id,
scope=db_api.ONE)
if existing_ports:
raise exceptions.BadRequest(
resource="port", msg="This device is already connected to the "
"requested network via another port")
# Try to fail early on quotas and save ourselves some db overhead
if fixed_ips:
quota.QUOTAS.limit_check(context, context.tenant_id,
fixed_ips_per_port=len(fixed_ips))
if not STRATEGY.is_parent_network(net_id):
# We don't honor segmented networks when they aren't "shared"
segment_id = None
port_count = db_api.port_count_all(context, network_id=[net_id],
tenant_id=[context.tenant_id])
quota.QUOTAS.limit_check(
context, context.tenant_id,
ports_per_network=port_count + 1)
else:
if not segment_id:
raise q_exc.AmbiguousNetworkId(net_id=net_id)
ipam_driver = ipam.IPAM_REGISTRY.get_strategy(net["ipam_strategy"])
net_driver = registry.DRIVER_REGISTRY.get_driver(net["network_plugin"])
# TODO(anyone): security groups are not currently supported on port create,
# nor on isolated networks today. Please see RM8615
security_groups = utils.pop_param(port_attrs, "security_groups")
if security_groups is not None:
raise q_exc.SecurityGroupsNotImplemented()
group_ids, security_groups = _make_security_group_list(context,
security_groups)
quota.QUOTAS.limit_check(context, context.tenant_id,
security_groups_per_port=len(group_ids))
addresses = []
backend_port = None
with utils.CommandManager().execute() as cmd_mgr:
@cmd_mgr.do
def _allocate_ips(fixed_ips, net, port_id, segment_id, mac):
fixed_ip_kwargs = {}
if fixed_ips:
if STRATEGY.is_parent_network(net_id) and not context.is_admin:
raise exceptions.NotAuthorized()
ips, subnets = split_and_validate_requested_subnets(context,
net_id,
segment_id,
fixed_ips)
fixed_ip_kwargs["ip_addresses"] = ips
fixed_ip_kwargs["subnets"] = subnets
ipam_driver.allocate_ip_address(
context, addresses, net["id"], port_id,
CONF.QUARK.ipam_reuse_after, segment_id=segment_id,
mac_address=mac, **fixed_ip_kwargs)
@cmd_mgr.undo
def _allocate_ips_undo(addr):
LOG.info("Rolling back IP addresses...")
if addresses:
for address in addresses:
try:
with context.session.begin():
ipam_driver.deallocate_ip_address(context, address)
except Exception:
LOG.exception("Couldn't release IP %s" % address)
@cmd_mgr.do
def _allocate_mac(net, port_id, mac_address,
use_forbidden_mac_range=False):
mac = ipam_driver.allocate_mac_address(
context, net["id"], port_id, CONF.QUARK.ipam_reuse_after,
mac_address=mac_address,
use_forbidden_mac_range=use_forbidden_mac_range)
return mac
@cmd_mgr.undo
def _allocate_mac_undo(mac):
LOG.info("Rolling back MAC address...")
if mac:
try:
with context.session.begin():
ipam_driver.deallocate_mac_address(context,
mac["address"])
except Exception:
LOG.exception("Couldn't release MAC %s" % mac)
@cmd_mgr.do
def _allocate_backend_port(mac, addresses, net, port_id):
backend_port = net_driver.create_port(context, net["id"],
port_id=port_id,
security_groups=group_ids,
device_id=device_id)
return backend_port
@cmd_mgr.undo
def _allocate_back_port_undo(backend_port):
LOG.info("Rolling back backend port...")
try:
net_driver.delete_port(context, backend_port["uuid"])
except Exception:
LOG.exception(
"Couldn't rollback backend port %s" % backend_port)
@cmd_mgr.do
def _allocate_db_port(port_attrs, backend_port, addresses, mac):
port_attrs["network_id"] = net["id"]
port_attrs["id"] = port_id
port_attrs["security_groups"] = security_groups
LOG.info("Including extra plugin attrs: %s" % backend_port)
port_attrs.update(backend_port)
with context.session.begin():
new_port = db_api.port_create(
context, addresses=addresses, mac_address=mac["address"],
backend_key=backend_port["uuid"], **port_attrs)
return new_port
@cmd_mgr.undo
def _allocate_db_port_undo(new_port):
LOG.info("Rolling back database port...")
if not new_port:
return
try:
with context.session.begin():
db_api.port_delete(context, new_port)
except Exception:
LOG.exception(
"Couldn't rollback db port %s" % backend_port)
# addresses, mac, backend_port, new_port
mac = _allocate_mac(net, port_id, mac_address,
use_forbidden_mac_range=use_forbidden_mac_range)
_allocate_ips(fixed_ips, net, port_id, segment_id, mac)
backend_port = _allocate_backend_port(mac, addresses, net, port_id)
new_port = _allocate_db_port(port_attrs, backend_port, addresses, mac)
return v._make_port_dict(new_port)
def update_subnet(context, id, subnet):
"""Update values of a subnet.
: param context: neutron api request context
: param id: UUID representing the subnet to update.
: param subnet: dictionary with keys indicating fields to update.
valid keys are those that have a value of True for 'allow_put'
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py.
"""
LOG.info("update_subnet %s for tenant %s" %
(id, context.tenant_id))
with context.session.begin():
subnet_db = db_api.subnet_find(context, None, None, None, False, id=id,
scope=db_api.ONE)
if not subnet_db:
raise exceptions.SubnetNotFound(id=id)
s = subnet["subnet"]
always_pop = ["_cidr", "cidr", "first_ip", "last_ip", "ip_version",
"segment_id", "network_id"]
admin_only = ["do_not_use", "created_at", "tenant_id",
"next_auto_assign_ip", "enable_dhcp"]
utils.filter_body(context, s, admin_only, always_pop)
dns_ips = utils.pop_param(s, "dns_nameservers", [])
host_routes = utils.pop_param(s, "host_routes", [])
gateway_ip = utils.pop_param(s, "gateway_ip", None)
allocation_pools = utils.pop_param(s, "allocation_pools", None)
if not CONF.QUARK.allow_allocation_pool_update:
if allocation_pools:
raise exceptions.BadRequest(
resource="subnets",
msg="Allocation pools cannot be updated.")
alloc_pools = allocation_pool.AllocationPools(
subnet_db["cidr"],
policies=models.IPPolicy.get_ip_policy_cidrs(subnet_db))
else:
alloc_pools = allocation_pool.AllocationPools(subnet_db["cidr"],
allocation_pools)
quota.QUOTAS.limit_check(
context,
context.tenant_id,
alloc_pools_per_subnet=len(alloc_pools))
if gateway_ip:
alloc_pools.validate_gateway_excluded(gateway_ip)
default_route = None
for route in host_routes:
netaddr_route = netaddr.IPNetwork(route["destination"])
if netaddr_route.value == routes.DEFAULT_ROUTE.value:
default_route = route
break
if default_route is None:
route_model = db_api.route_find(
context, cidr=str(routes.DEFAULT_ROUTE), subnet_id=id,
scope=db_api.ONE)
if route_model:
db_api.route_update(context, route_model,
gateway=gateway_ip)
else:
db_api.route_create(context,
cidr=str(routes.DEFAULT_ROUTE),
gateway=gateway_ip, subnet_id=id)
if dns_ips:
subnet_db["dns_nameservers"] = []
quota.QUOTAS.limit_check(context, context.tenant_id,
dns_nameservers_per_subnet=len(dns_ips))
for dns_ip in dns_ips:
subnet_db["dns_nameservers"].append(db_api.dns_create(
context,
ip=netaddr.IPAddress(dns_ip)))
if host_routes:
subnet_db["routes"] = []
quota.QUOTAS.limit_check(context, context.tenant_id,
routes_per_subnet=len(host_routes))
for route in host_routes:
subnet_db["routes"].append(db_api.route_create(
context, cidr=route["destination"], gateway=route["nexthop"]))
if CONF.QUARK.allow_allocation_pool_update:
if isinstance(allocation_pools, list):
cidrs = alloc_pools.get_policy_cidrs()
ip_policies.ensure_default_policy(cidrs, [subnet_db])
subnet_db["ip_policy"] = db_api.ip_policy_update(
context, subnet_db["ip_policy"], exclude=cidrs)
# invalidate the cache
db_api.subnet_update_set_alloc_pool_cache(context, subnet_db)
subnet = db_api.subnet_update(context, subnet_db, **s)
return v._make_subnet_dict(subnet)
def create_subnet(context, subnet):
"""Create a subnet.
Create a subnet which represents a range of IP addresses
that can be allocated to devices
: param context: neutron api request context
: param subnet: dictionary describing the subnet, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_subnet for tenant %s" % context.tenant_id)
net_id = subnet["subnet"]["network_id"]
with context.session.begin():
net = db_api.network_find(context,
None,
None,
None,
False,
id=net_id,
scope=db_api.ONE)
if not net:
raise exceptions.NetworkNotFound(net_id=net_id)
sub_attrs = subnet["subnet"]
always_pop = [
"enable_dhcp", "ip_version", "first_ip", "last_ip", "_cidr"
]
admin_only = [
"segment_id", "do_not_use", "created_at", "next_auto_assign_ip"
]
utils.filter_body(context, sub_attrs, admin_only, always_pop)
_validate_subnet_cidr(context, net_id, sub_attrs["cidr"])
cidr = netaddr.IPNetwork(sub_attrs["cidr"])
err_vals = {'cidr': sub_attrs["cidr"], 'network_id': net_id}
err = _("Requested subnet with cidr: %(cidr)s for "
"network: %(network_id)s. Prefix is too small, must be a "
"larger subnet. A prefix less than /%(prefix)s is required.")
if cidr.version == 6 and cidr.prefixlen > 64:
err_vals["prefix"] = 65
err_msg = err % err_vals
raise exceptions.InvalidInput(error_message=err_msg)
elif cidr.version == 4 and cidr.prefixlen > 30:
err_vals["prefix"] = 31
err_msg = err % err_vals
raise exceptions.InvalidInput(error_message=err_msg)
# Enforce subnet quotas
net_subnets = get_subnets(context, filters=dict(network_id=net_id))
if not context.is_admin:
v4_count, v6_count = 0, 0
for subnet in net_subnets:
if netaddr.IPNetwork(subnet['cidr']).version == 6:
v6_count += 1
else:
v4_count += 1
if cidr.version == 6:
tenant_quota_v6 = context.session.query(qdv.Quota).filter_by(
tenant_id=context.tenant_id,
resource='v6_subnets_per_network').first()
if tenant_quota_v6 != -1:
quota.QUOTAS.limit_check(context,
context.tenant_id,
v6_subnets_per_network=v6_count +
1)
else:
tenant_quota_v4 = context.session.query(qdv.Quota).filter_by(
tenant_id=context.tenant_id,
resource='v4_subnets_per_network').first()
if tenant_quota_v4 != -1:
quota.QUOTAS.limit_check(context,
context.tenant_id,
v4_subnets_per_network=v4_count +
1)
# See RM981. The default behavior of setting a gateway unless
# explicitly asked to not is no longer desirable.
gateway_ip = utils.pop_param(sub_attrs, "gateway_ip")
dns_ips = utils.pop_param(sub_attrs, "dns_nameservers", [])
host_routes = utils.pop_param(sub_attrs, "host_routes", [])
allocation_pools = utils.pop_param(sub_attrs, "allocation_pools", None)
sub_attrs["network"] = net
new_subnet = db_api.subnet_create(context, **sub_attrs)
cidrs = []
alloc_pools = allocation_pool.AllocationPools(sub_attrs["cidr"],
allocation_pools)
if isinstance(allocation_pools, list):
cidrs = alloc_pools.get_policy_cidrs()
quota.QUOTAS.limit_check(context,
context.tenant_id,
alloc_pools_per_subnet=len(alloc_pools))
ip_policies.ensure_default_policy(cidrs, [new_subnet])
new_subnet["ip_policy"] = db_api.ip_policy_create(context,
exclude=cidrs)
quota.QUOTAS.limit_check(context,
context.tenant_id,
routes_per_subnet=len(host_routes))
default_route = None
for route in host_routes:
netaddr_route = netaddr.IPNetwork(route["destination"])
if netaddr_route.value == routes.DEFAULT_ROUTE.value:
if default_route:
raise q_exc.DuplicateRouteConflict(
subnet_id=new_subnet["id"])
default_route = route
gateway_ip = default_route["nexthop"]
alloc_pools.validate_gateway_excluded(gateway_ip)
new_subnet["routes"].append(
db_api.route_create(context,
cidr=route["destination"],
gateway=route["nexthop"]))
quota.QUOTAS.limit_check(context,
context.tenant_id,
dns_nameservers_per_subnet=len(dns_ips))
for dns_ip in dns_ips:
new_subnet["dns_nameservers"].append(
db_api.dns_create(context, ip=netaddr.IPAddress(dns_ip)))
# if the gateway_ip is IN the cidr for the subnet and NOT excluded by
# policies, we should raise a 409 conflict
if gateway_ip and default_route is None:
alloc_pools.validate_gateway_excluded(gateway_ip)
new_subnet["routes"].append(
db_api.route_create(context,
cidr=str(routes.DEFAULT_ROUTE),
gateway=gateway_ip))
subnet_dict = v._make_subnet_dict(new_subnet)
subnet_dict["gateway_ip"] = gateway_ip
n_rpc.get_notifier("network").info(
context, "ip_block.create",
dict(tenant_id=subnet_dict["tenant_id"],
ip_block_id=subnet_dict["id"],
created_at=new_subnet["created_at"]))
return subnet_dict
def update_port(context, id, port):
"""Update values of a port.
: param context: neutron api request context
: param id: UUID representing the port to update.
: param port: dictionary with keys indicating fields to update.
valid keys are those that have a value of True for 'allow_put'
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py.
"""
LOG.info("update_port %s for tenant %s" % (id, context.tenant_id))
port_db = db_api.port_find(context, id=id, scope=db_api.ONE)
if not port_db:
raise exceptions.PortNotFound(port_id=id)
port_dict = port["port"]
fixed_ips = port_dict.pop("fixed_ips", None)
admin_only = ["mac_address", "device_owner", "bridge", "admin_state_up",
"device_id"]
always_filter = ["network_id", "backend_key"]
utils.filter_body(context, port_dict, admin_only=admin_only,
always_filter=always_filter)
# Pre-check the requested fixed_ips before making too many db trips.
# Note that this is the only check we need, since this call replaces
# the entirety of the IP addresses document if fixed_ips are provided.
if fixed_ips:
quota.QUOTAS.limit_check(context, context.tenant_id,
fixed_ips_per_port=len(fixed_ips))
# TODO(anyone): security groups are not currently supported on port create,
# nor on isolated networks today. Please see RM8615
new_security_groups = utils.pop_param(port_dict, "security_groups")
if new_security_groups is not None:
if not STRATEGY.is_parent_network(port_db["network_id"]):
raise q_exc.TenantNetworkSecurityGroupsNotImplemented()
if new_security_groups is not None and not port_db["device_id"]:
raise q_exc.SecurityGroupsRequireDevice()
group_ids, security_group_mods = _make_security_group_list(
context, new_security_groups)
quota.QUOTAS.limit_check(context, context.tenant_id,
security_groups_per_port=len(group_ids))
if fixed_ips is not None:
# NOTE(mdietz): we want full control over IPAM since
# we're allocating by subnet instead of
# network.
ipam_driver = ipam.IPAM_REGISTRY.get_strategy(
ipam.QuarkIpamANY.get_name())
addresses, subnet_ids = [], []
ip_addresses = {}
for fixed_ip in fixed_ips:
subnet_id = fixed_ip.get("subnet_id")
ip_address = fixed_ip.get("ip_address")
if not (subnet_id or ip_address):
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id or ip_address required")
if ip_address and not subnet_id:
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id required for ip_address allocation")
if subnet_id and ip_address:
ip_netaddr = netaddr.IPAddress(ip_address).ipv6()
ip_addresses[ip_netaddr] = subnet_id
else:
subnet_ids.append(subnet_id)
port_ips = set([netaddr.IPAddress(int(a["address"]))
for a in port_db["ip_addresses"]])
new_ips = set([a for a in ip_addresses.keys()])
ips_to_allocate = list(new_ips - port_ips)
ips_to_deallocate = list(port_ips - new_ips)
for ip in ips_to_allocate:
if ip in ip_addresses:
# NOTE: Fix for RM10187 - we were losing the list of IPs if
# more than one IP was to be allocated. Track an
# aggregate list instead, and add it to the running total
# after each allocate
allocated = []
ipam_driver.allocate_ip_address(
context, allocated, port_db["network_id"],
port_db["id"], reuse_after=None, ip_addresses=[ip],
subnets=[ip_addresses[ip]])
addresses.extend(allocated)
for ip in ips_to_deallocate:
ipam_driver.deallocate_ips_by_port(
context, port_db, ip_address=ip)
for subnet_id in subnet_ids:
ipam_driver.allocate_ip_address(
context, addresses, port_db["network_id"], port_db["id"],
reuse_after=CONF.QUARK.ipam_reuse_after,
subnets=[subnet_id])
# Need to return all existing addresses and the new ones
if addresses:
port_dict["addresses"] = port_db["ip_addresses"]
port_dict["addresses"].extend(addresses)
net_driver = registry.DRIVER_REGISTRY.get_driver(
port_db.network["network_plugin"])
# TODO(anyone): What do we want to have happen here if this fails? Is it
# ok to continue to keep the IPs but fail to apply security
# groups? Is there a clean way to have a multi-status? Since
# we're in a beta-y status, I'm going to let this sit for
# a future patch where we have time to solve it well.
kwargs = {}
if new_security_groups is not None:
kwargs["security_groups"] = security_group_mods
net_driver.update_port(context, port_id=port_db["backend_key"],
mac_address=port_db["mac_address"],
device_id=port_db["device_id"],
**kwargs)
port_dict["security_groups"] = security_group_mods
with context.session.begin():
port = db_api.port_update(context, port_db, **port_dict)
# NOTE(mdietz): fix for issue 112, we wanted the IPs to be in
# allocated_at order, so get a fresh object every time
if port_db in context.session:
context.session.expunge(port_db)
port_db = db_api.port_find(context, id=id, scope=db_api.ONE)
return v._make_port_dict(port_db)
def create_port(context, port):
"""Create a port
Create a port which is a connection point of a device (e.g., a VM
NIC) to attach to a L2 Neutron network.
: param context: neutron api request context
: param port: dictionary describing the port, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_port for tenant %s" % context.tenant_id)
port_attrs = port["port"]
admin_only = [
"mac_address", "device_owner", "bridge", "admin_state_up",
"use_forbidden_mac_range", "network_plugin", "instance_node_id"
]
utils.filter_body(context, port_attrs, admin_only=admin_only)
port_attrs = port["port"]
mac_address = utils.pop_param(port_attrs, "mac_address", None)
use_forbidden_mac_range = utils.pop_param(port_attrs,
"use_forbidden_mac_range", False)
segment_id = utils.pop_param(port_attrs, "segment_id")
fixed_ips = utils.pop_param(port_attrs, "fixed_ips")
if "device_id" not in port_attrs:
port_attrs['device_id'] = ""
device_id = port_attrs['device_id']
# NOTE(morgabra) This should be instance.node from nova, only needed
# for ironic_driver.
if "instance_node_id" not in port_attrs:
port_attrs['instance_node_id'] = ""
instance_node_id = port_attrs['instance_node_id']
net_id = port_attrs["network_id"]
port_id = uuidutils.generate_uuid()
net = db_api.network_find(context=context,
limit=None,
sorts=['id'],
marker=None,
page_reverse=False,
fields=None,
id=net_id,
scope=db_api.ONE)
if not net:
raise n_exc.NetworkNotFound(net_id=net_id)
_raise_if_unauthorized(context, net)
# NOTE (Perkins): If a device_id is given, try to prevent multiple ports
# from being created for a device already attached to the network
if device_id:
existing_ports = db_api.port_find(context,
network_id=net_id,
device_id=device_id,
scope=db_api.ONE)
if existing_ports:
raise n_exc.BadRequest(
resource="port",
msg="This device is already connected to the "
"requested network via another port")
# Try to fail early on quotas and save ourselves some db overhead
if fixed_ips:
quota.QUOTAS.limit_check(context,
context.tenant_id,
fixed_ips_per_port=len(fixed_ips))
if not STRATEGY.is_provider_network(net_id):
# We don't honor segmented networks when they aren't "shared"
segment_id = None
port_count = db_api.port_count_all(context,
network_id=[net_id],
tenant_id=[context.tenant_id])
quota.QUOTAS.limit_check(context,
context.tenant_id,
ports_per_network=port_count + 1)
else:
if not segment_id:
raise q_exc.AmbiguousNetworkId(net_id=net_id)
network_plugin = utils.pop_param(port_attrs, "network_plugin")
if not network_plugin:
network_plugin = net["network_plugin"]
port_attrs["network_plugin"] = network_plugin
ipam_driver = _get_ipam_driver(net, port=port_attrs)
net_driver = _get_net_driver(net, port=port_attrs)
# NOTE(morgabra) It's possible that we select a driver different than
# the one specified by the network. However, we still might need to use
# this for some operations, so we also fetch it and pass it along to
# the backend driver we are actually using.
base_net_driver = _get_net_driver(net)
# TODO(anyone): security groups are not currently supported on port create.
# Please see JIRA:NCP-801
security_groups = utils.pop_param(port_attrs, "security_groups")
if security_groups is not None:
raise q_exc.SecurityGroupsNotImplemented()
group_ids, security_groups = _make_security_group_list(
context, security_groups)
quota.QUOTAS.limit_check(context,
context.tenant_id,
security_groups_per_port=len(group_ids))
addresses = []
backend_port = None
with utils.CommandManager().execute() as cmd_mgr:
@cmd_mgr.do
def _allocate_ips(fixed_ips, net, port_id, segment_id, mac, **kwargs):
if fixed_ips:
if (STRATEGY.is_provider_network(net_id)
and not context.is_admin):
raise n_exc.NotAuthorized()
ips, subnets = split_and_validate_requested_subnets(
context, net_id, segment_id, fixed_ips)
kwargs["ip_addresses"] = ips
kwargs["subnets"] = subnets
ipam_driver.allocate_ip_address(context,
addresses,
net["id"],
port_id,
CONF.QUARK.ipam_reuse_after,
segment_id=segment_id,
mac_address=mac,
**kwargs)
@cmd_mgr.undo
def _allocate_ips_undo(addr, **kwargs):
LOG.info("Rolling back IP addresses...")
if addresses:
for address in addresses:
try:
with context.session.begin():
ipam_driver.deallocate_ip_address(
context, address, **kwargs)
except Exception:
LOG.exception("Couldn't release IP %s" % address)
@cmd_mgr.do
def _allocate_mac(net,
port_id,
mac_address,
use_forbidden_mac_range=False,
**kwargs):
mac = ipam_driver.allocate_mac_address(
context,
net["id"],
port_id,
CONF.QUARK.ipam_reuse_after,
mac_address=mac_address,
use_forbidden_mac_range=use_forbidden_mac_range,
**kwargs)
return mac
@cmd_mgr.undo
def _allocate_mac_undo(mac, **kwargs):
LOG.info("Rolling back MAC address...")
if mac:
try:
with context.session.begin():
ipam_driver.deallocate_mac_address(
context, mac["address"])
except Exception:
LOG.exception("Couldn't release MAC %s" % mac)
@cmd_mgr.do
def _allocate_backend_port(mac, addresses, net, port_id, **kwargs):
backend_port = net_driver.create_port(
context,
net["id"],
port_id=port_id,
security_groups=group_ids,
device_id=device_id,
instance_node_id=instance_node_id,
mac_address=mac,
addresses=addresses,
base_net_driver=base_net_driver)
_filter_backend_port(backend_port)
return backend_port
@cmd_mgr.undo
def _allocate_back_port_undo(backend_port, **kwargs):
LOG.info("Rolling back backend port...")
try:
backend_port_uuid = None
if backend_port:
backend_port_uuid = backend_port.get("uuid")
net_driver.delete_port(context, backend_port_uuid)
except Exception:
LOG.exception("Couldn't rollback backend port %s" %
backend_port)
@cmd_mgr.do
def _allocate_db_port(port_attrs, backend_port, addresses, mac,
**kwargs):
port_attrs["network_id"] = net["id"]
port_attrs["id"] = port_id
port_attrs["security_groups"] = security_groups
LOG.info("Including extra plugin attrs: %s" % backend_port)
port_attrs.update(backend_port)
with context.session.begin():
new_port = db_api.port_create(context,
addresses=addresses,
mac_address=mac["address"],
backend_key=backend_port["uuid"],
**port_attrs)
return new_port
@cmd_mgr.undo
def _allocate_db_port_undo(new_port, **kwargs):
LOG.info("Rolling back database port...")
if not new_port:
return
try:
with context.session.begin():
db_api.port_delete(context, new_port)
except Exception:
LOG.exception("Couldn't rollback db port %s" % backend_port)
# addresses, mac, backend_port, new_port
mac = _allocate_mac(net,
port_id,
mac_address,
use_forbidden_mac_range=use_forbidden_mac_range)
_allocate_ips(fixed_ips, net, port_id, segment_id, mac)
backend_port = _allocate_backend_port(mac, addresses, net, port_id)
new_port = _allocate_db_port(port_attrs, backend_port, addresses, mac)
return v._make_port_dict(new_port)
def update_subnet(context, id, subnet):
"""Update values of a subnet.
: param context: neutron api request context
: param id: UUID representing the subnet to update.
: param subnet: dictionary with keys indicating fields to update.
valid keys are those that have a value of True for 'allow_put'
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py.
"""
LOG.info("update_subnet %s for tenant %s" % (id, context.tenant_id))
with context.session.begin():
subnet_db = db_api.subnet_find(context,
None,
None,
None,
False,
id=id,
scope=db_api.ONE)
if not subnet_db:
raise exceptions.SubnetNotFound(id=id)
s = subnet["subnet"]
always_pop = [
"_cidr", "cidr", "first_ip", "last_ip", "ip_version", "segment_id",
"network_id"
]
admin_only = [
"do_not_use", "created_at", "tenant_id", "next_auto_assign_ip",
"enable_dhcp"
]
utils.filter_body(context, s, admin_only, always_pop)
dns_ips = utils.pop_param(s, "dns_nameservers", [])
host_routes = utils.pop_param(s, "host_routes", [])
gateway_ip = utils.pop_param(s, "gateway_ip", None)
allocation_pools = utils.pop_param(s, "allocation_pools", None)
if not CONF.QUARK.allow_allocation_pool_update:
if allocation_pools:
raise exceptions.BadRequest(
resource="subnets",
msg="Allocation pools cannot be updated.")
alloc_pools = allocation_pool.AllocationPools(
subnet_db["cidr"],
policies=models.IPPolicy.get_ip_policy_cidrs(subnet_db))
else:
alloc_pools = allocation_pool.AllocationPools(
subnet_db["cidr"], allocation_pools)
quota.QUOTAS.limit_check(context,
context.tenant_id,
alloc_pools_per_subnet=len(alloc_pools))
if gateway_ip:
alloc_pools.validate_gateway_excluded(gateway_ip)
default_route = None
for route in host_routes:
netaddr_route = netaddr.IPNetwork(route["destination"])
if netaddr_route.value == routes.DEFAULT_ROUTE.value:
default_route = route
break
if default_route is None:
route_model = db_api.route_find(context,
cidr=str(routes.DEFAULT_ROUTE),
subnet_id=id,
scope=db_api.ONE)
if route_model:
db_api.route_update(context,
route_model,
gateway=gateway_ip)
else:
db_api.route_create(context,
cidr=str(routes.DEFAULT_ROUTE),
gateway=gateway_ip,
subnet_id=id)
if dns_ips:
subnet_db["dns_nameservers"] = []
quota.QUOTAS.limit_check(context,
context.tenant_id,
dns_nameservers_per_subnet=len(dns_ips))
for dns_ip in dns_ips:
subnet_db["dns_nameservers"].append(
db_api.dns_create(context, ip=netaddr.IPAddress(dns_ip)))
if host_routes:
subnet_db["routes"] = []
quota.QUOTAS.limit_check(context,
context.tenant_id,
routes_per_subnet=len(host_routes))
for route in host_routes:
subnet_db["routes"].append(
db_api.route_create(context,
cidr=route["destination"],
gateway=route["nexthop"]))
if CONF.QUARK.allow_allocation_pool_update:
if isinstance(allocation_pools, list):
cidrs = alloc_pools.get_policy_cidrs()
ip_policies.ensure_default_policy(cidrs, [subnet_db])
subnet_db["ip_policy"] = db_api.ip_policy_update(
context, subnet_db["ip_policy"], exclude=cidrs)
# invalidate the cache
db_api.subnet_update_set_alloc_pool_cache(context, subnet_db)
subnet = db_api.subnet_update(context, subnet_db, **s)
return v._make_subnet_dict(subnet)
def create_port(context, port):
"""Create a port
Create a port which is a connection point of a device (e.g., a VM
NIC) to attach to a L2 Neutron network.
: param context: neutron api request context
: param port: dictionary describing the port, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_port for tenant %s" % context.tenant_id)
port_attrs = port["port"]
admin_only = ["mac_address", "device_owner", "bridge", "admin_state_up"]
utils.filter_body(context, port_attrs, admin_only=admin_only)
port_attrs = port["port"]
mac_address = utils.pop_param(port_attrs, "mac_address", None)
segment_id = utils.pop_param(port_attrs, "segment_id")
fixed_ips = utils.pop_param(port_attrs, "fixed_ips")
net_id = port_attrs["network_id"]
device_id = port_attrs["device_id"]
port_id = uuidutils.generate_uuid()
net = db_api.network_find(context, id=net_id, scope=db_api.ONE)
if not net:
raise exceptions.NetworkNotFound(net_id=net_id)
# NOTE (Perkins): If a device_id is given, try to prevent multiple ports
# from being created for a device already attached to the network
if device_id:
existing_ports = db_api.port_find(context,
network_id=net_id,
device_id=device_id,
scope=db_api.ONE)
if existing_ports:
raise exceptions.BadRequest(
resource="port", msg="This device is already connected to the "
"requested network via another port")
if not STRATEGY.is_parent_network(net_id):
# We don't honor segmented networks when they aren't "shared"
segment_id = None
port_count = db_api.port_count_all(context, network_id=[net_id],
tenant_id=[context.tenant_id])
quota.QUOTAS.limit_check(
context, context.tenant_id,
ports_per_network=port_count + 1)
else:
if not segment_id:
raise q_exc.AmbiguousNetworkId(net_id=net_id)
ipam_driver = ipam.IPAM_REGISTRY.get_strategy(net["ipam_strategy"])
net_driver = registry.DRIVER_REGISTRY.get_driver(net["network_plugin"])
group_ids, security_groups = v.make_security_group_list(
context, port["port"].pop("security_groups", None))
addresses = []
mac = None
backend_port = None
with utils.CommandManager().execute() as cmd_mgr:
@cmd_mgr.do
def _allocate_ips(fixed_ips, net, port_id, segment_id, mac):
if fixed_ips:
for fixed_ip in fixed_ips:
subnet_id = fixed_ip.get("subnet_id")
ip_address = fixed_ip.get("ip_address")
if not (subnet_id and ip_address):
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id and ip_address required")
ipam_driver.allocate_ip_address(
context, addresses, net["id"], port_id,
CONF.QUARK.ipam_reuse_after, segment_id=segment_id,
ip_address=ip_address, subnets=[subnet_id],
mac_address=mac)
else:
ipam_driver.allocate_ip_address(
context, addresses, net["id"], port_id,
CONF.QUARK.ipam_reuse_after, segment_id=segment_id,
mac_address=mac)
@cmd_mgr.undo
def _allocate_ips_undo(addr):
LOG.info("Rolling back IP addresses...")
if addresses:
for address in addresses:
try:
with context.session.begin():
ipam_driver.deallocate_ip_address(context, address)
except Exception:
LOG.exception("Couldn't release IP %s" % address)
@cmd_mgr.do
def _allocate_mac(net, port_id, mac_address):
mac = ipam_driver.allocate_mac_address(
context, net["id"], port_id, CONF.QUARK.ipam_reuse_after,
mac_address=mac_address)
return mac
@cmd_mgr.undo
def _allocate_mac_undo(mac):
LOG.info("Rolling back MAC address...")
if mac:
try:
with context.session.begin():
ipam_driver.deallocate_mac_address(context,
mac["address"])
except Exception:
LOG.exception("Couldn't release MAC %s" % mac)
@cmd_mgr.do
def _allocate_backend_port(mac, addresses, net, port_id):
backend_port = net_driver.create_port(context, net["id"],
port_id=port_id,
security_groups=group_ids,
device_id=device_id)
return backend_port
@cmd_mgr.undo
def _allocate_back_port_undo(backend_port):
LOG.info("Rolling back backend port...")
try:
net_driver.delete_port(context, backend_port["uuid"])
except Exception:
LOG.exception(
"Couldn't rollback backend port %s" % backend_port)
@cmd_mgr.do
def _allocate_db_port(port_attrs, backend_port, addresses, mac):
port_attrs["network_id"] = net["id"]
port_attrs["id"] = port_id
port_attrs["security_groups"] = security_groups
LOG.info("Including extra plugin attrs: %s" % backend_port)
port_attrs.update(backend_port)
with context.session.begin():
new_port = db_api.port_create(
context, addresses=addresses, mac_address=mac["address"],
backend_key=backend_port["uuid"], **port_attrs)
return new_port
@cmd_mgr.undo
def _allocate_db_port_undo(new_port):
LOG.info("Rolling back database port...")
if not new_port:
return
try:
with context.session.begin():
db_api.port_delete(context, new_port)
except Exception:
LOG.exception(
"Couldn't rollback db port %s" % backend_port)
# addresses, mac, backend_port, new_port
mac = _allocate_mac(net, port_id, mac_address)
_allocate_ips(fixed_ips, net, port_id, segment_id, mac)
backend_port = _allocate_backend_port(mac, addresses, net, port_id)
new_port = _allocate_db_port(port_attrs, backend_port, addresses, mac)
return v._make_port_dict(new_port)
def update_port(context, id, port):
"""Update values of a port.
: param context: neutron api request context
: param id: UUID representing the port to update.
: param port: dictionary with keys indicating fields to update.
valid keys are those that have a value of True for 'allow_put'
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py.
"""
LOG.info("update_port %s for tenant %s" % (id, context.tenant_id))
port_db = db_api.port_find(context, id=id, scope=db_api.ONE)
if not port_db:
raise exceptions.PortNotFound(port_id=id)
port_dict = port["port"]
fixed_ips = port_dict.pop("fixed_ips", None)
admin_only = ["mac_address", "device_owner", "bridge", "admin_state_up",
"device_id"]
always_filter = ["network_id", "backend_key"]
utils.filter_body(context, port_dict, admin_only=admin_only,
always_filter=always_filter)
if fixed_ips is not None:
# NOTE(mdietz): we want full control over IPAM since
# we're allocating by subnet instead of
# network.
ipam_driver = ipam.IPAM_REGISTRY.get_strategy(
ipam.QuarkIpamANY.get_name())
addresses, subnet_ids = [], []
ip_addresses = {}
for fixed_ip in fixed_ips:
subnet_id = fixed_ip.get("subnet_id")
ip_address = fixed_ip.get("ip_address")
if not (subnet_id or ip_address):
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id or ip_address required")
if ip_address and not subnet_id:
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id required for ip_address allocation")
if subnet_id and ip_address:
ip_netaddr = netaddr.IPAddress(ip_address).ipv6()
ip_addresses[ip_netaddr] = subnet_id
else:
subnet_ids.append(subnet_id)
port_ips = set([netaddr.IPAddress(int(a["address"]))
for a in port_db["ip_addresses"]])
new_ips = set([a for a in ip_addresses.keys()])
ips_to_allocate = list(new_ips - port_ips)
ips_to_deallocate = list(port_ips - new_ips)
for ip in ips_to_allocate:
if ip in ip_addresses:
ipam_driver.allocate_ip_address(
context, addresses, port_db["network_id"],
port_db["id"], reuse_after=None, ip_address=ip,
subnets=[ip_addresses[ip]])
for ip in ips_to_deallocate:
ipam_driver.deallocate_ips_by_port(
context, port_db, ip_address=ip)
for subnet_id in subnet_ids:
ipam_driver.allocate_ip_address(
context, addresses, port_db["network_id"], port_db["id"],
reuse_after=CONF.QUARK.ipam_reuse_after,
subnets=[subnet_id])
# Need to return all existing addresses and the new ones
if addresses:
port_dict["addresses"] = port_db["ip_addresses"]
port_dict["addresses"].extend(addresses)
group_ids, security_groups = v.make_security_group_list(
context, port_dict.pop("security_groups", None))
net_driver = registry.DRIVER_REGISTRY.get_driver(
port_db.network["network_plugin"])
net_driver.update_port(context, port_id=port_db.backend_key,
security_groups=group_ids)
port_dict["security_groups"] = security_groups
with context.session.begin():
port = db_api.port_update(context, port_db, **port_dict)
# NOTE(mdietz): fix for issue 112, we wanted the IPs to be in
# allocated_at order, so get a fresh object every time
if port_db in context.session:
context.session.expunge(port_db)
port_db = db_api.port_find(context, id=id, scope=db_api.ONE)
return v._make_port_dict(port_db)
def create_port(context, port):
"""Create a port
Create a port which is a connection point of a device (e.g., a VM
NIC) to attach to a L2 Neutron network.
: param context: neutron api request context
: param port: dictionary describing the port, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_port for tenant %s" % context.tenant_id)
port_attrs = port["port"]
admin_only = ["mac_address", "device_owner", "bridge", "admin_state_up"]
utils.filter_body(context, port_attrs, admin_only=admin_only)
port_attrs = port["port"]
mac_address = utils.pop_param(port_attrs, "mac_address", None)
segment_id = utils.pop_param(port_attrs, "segment_id")
fixed_ips = utils.pop_param(port_attrs, "fixed_ips")
net_id = port_attrs["network_id"]
device_id = port_attrs["device_id"]
port_id = uuidutils.generate_uuid()
net = db_api.network_find(context, id=net_id, scope=db_api.ONE)
if not net:
raise exceptions.NetworkNotFound(net_id=net_id)
# NOTE (Perkins): If a device_id is given, try to prevent multiple ports
# from being created for a device already attached to the network
if device_id:
existing_ports = db_api.port_find(context,
network_id=net_id,
device_id=device_id,
scope=db_api.ONE)
if existing_ports:
raise exceptions.BadRequest(
resource="port",
msg="This device is already connected to the "
"requested network via another port")
if not STRATEGY.is_parent_network(net_id):
# We don't honor segmented networks when they aren't "shared"
segment_id = None
port_count = db_api.port_count_all(context,
network_id=[net_id],
tenant_id=[context.tenant_id])
quota.QUOTAS.limit_check(context,
context.tenant_id,
ports_per_network=port_count + 1)
else:
if not segment_id:
raise q_exc.AmbiguousNetworkId(net_id=net_id)
ipam_driver = ipam.IPAM_REGISTRY.get_strategy(net["ipam_strategy"])
net_driver = registry.DRIVER_REGISTRY.get_driver(net["network_plugin"])
group_ids, security_groups = v.make_security_group_list(
context, port["port"].pop("security_groups", None))
addresses = []
mac = None
backend_port = None
with utils.CommandManager().execute() as cmd_mgr:
@cmd_mgr.do
def _allocate_ips(fixed_ips, net, port_id, segment_id, mac):
if fixed_ips:
for fixed_ip in fixed_ips:
subnet_id = fixed_ip.get("subnet_id")
ip_address = fixed_ip.get("ip_address")
if not (subnet_id and ip_address):
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id and ip_address required")
ipam_driver.allocate_ip_address(
context,
addresses,
net["id"],
port_id,
CONF.QUARK.ipam_reuse_after,
segment_id=segment_id,
ip_address=ip_address,
subnets=[subnet_id],
mac_address=mac)
else:
ipam_driver.allocate_ip_address(context,
addresses,
net["id"],
port_id,
CONF.QUARK.ipam_reuse_after,
segment_id=segment_id,
mac_address=mac)
@cmd_mgr.undo
def _allocate_ips_undo(addr):
LOG.info("Rolling back IP addresses...")
if addresses:
for address in addresses:
try:
with context.session.begin():
ipam_driver.deallocate_ip_address(context, address)
except Exception:
LOG.exception("Couldn't release IP %s" % address)
@cmd_mgr.do
def _allocate_mac(net, port_id, mac_address):
mac = ipam_driver.allocate_mac_address(context,
net["id"],
port_id,
CONF.QUARK.ipam_reuse_after,
mac_address=mac_address)
return mac
@cmd_mgr.undo
def _allocate_mac_undo(mac):
LOG.info("Rolling back MAC address...")
if mac:
try:
with context.session.begin():
ipam_driver.deallocate_mac_address(
context, mac["address"])
except Exception:
LOG.exception("Couldn't release MAC %s" % mac)
@cmd_mgr.do
def _allocate_backend_port(mac, addresses, net, port_id):
backend_port = net_driver.create_port(context,
net["id"],
port_id=port_id,
security_groups=group_ids,
device_id=device_id)
return backend_port
@cmd_mgr.undo
def _allocate_back_port_undo(backend_port):
LOG.info("Rolling back backend port...")
try:
net_driver.delete_port(context, backend_port["uuid"])
except Exception:
LOG.exception("Couldn't rollback backend port %s" %
backend_port)
@cmd_mgr.do
def _allocate_db_port(port_attrs, backend_port, addresses, mac):
port_attrs["network_id"] = net["id"]
port_attrs["id"] = port_id
port_attrs["security_groups"] = security_groups
LOG.info("Including extra plugin attrs: %s" % backend_port)
port_attrs.update(backend_port)
with context.session.begin():
new_port = db_api.port_create(context,
addresses=addresses,
mac_address=mac["address"],
backend_key=backend_port["uuid"],
**port_attrs)
return new_port
@cmd_mgr.undo
def _allocate_db_port_undo(new_port):
LOG.info("Rolling back database port...")
if not new_port:
return
try:
with context.session.begin():
db_api.port_delete(context, new_port)
except Exception:
LOG.exception("Couldn't rollback db port %s" % backend_port)
# addresses, mac, backend_port, new_port
mac = _allocate_mac(net, port_id, mac_address)
_allocate_ips(fixed_ips, net, port_id, segment_id, mac)
backend_port = _allocate_backend_port(mac, addresses, net, port_id)
new_port = _allocate_db_port(port_attrs, backend_port, addresses, mac)
return v._make_port_dict(new_port)
def update_port(context, id, port):
"""Update values of a port.
: param context: neutron api request context
: param id: UUID representing the port to update.
: param port: dictionary with keys indicating fields to update.
valid keys are those that have a value of True for 'allow_put'
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py.
"""
LOG.info("update_port %s for tenant %s" % (id, context.tenant_id))
port_db = db_api.port_find(context, id=id, scope=db_api.ONE)
if not port_db:
raise exceptions.PortNotFound(port_id=id)
port_dict = port["port"]
fixed_ips = port_dict.pop("fixed_ips", None)
admin_only = [
"mac_address", "device_owner", "bridge", "admin_state_up", "device_id"
]
always_filter = ["network_id", "backend_key"]
utils.filter_body(context,
port_dict,
admin_only=admin_only,
always_filter=always_filter)
if fixed_ips is not None:
# NOTE(mdietz): we want full control over IPAM since
# we're allocating by subnet instead of
# network.
ipam_driver = ipam.IPAM_REGISTRY.get_strategy(
ipam.QuarkIpamANY.get_name())
addresses, subnet_ids = [], []
ip_addresses = {}
for fixed_ip in fixed_ips:
subnet_id = fixed_ip.get("subnet_id")
ip_address = fixed_ip.get("ip_address")
if not (subnet_id or ip_address):
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id or ip_address required")
if ip_address and not subnet_id:
raise exceptions.BadRequest(
resource="fixed_ips",
msg="subnet_id required for ip_address allocation")
if subnet_id and ip_address:
ip_netaddr = netaddr.IPAddress(ip_address).ipv6()
ip_addresses[ip_netaddr] = subnet_id
else:
subnet_ids.append(subnet_id)
port_ips = set([
netaddr.IPAddress(int(a["address"]))
for a in port_db["ip_addresses"]
])
new_ips = set([a for a in ip_addresses.keys()])
ips_to_allocate = list(new_ips - port_ips)
ips_to_deallocate = list(port_ips - new_ips)
for ip in ips_to_allocate:
if ip in ip_addresses:
ipam_driver.allocate_ip_address(context,
addresses,
port_db["network_id"],
port_db["id"],
reuse_after=None,
ip_address=ip,
subnets=[ip_addresses[ip]])
for ip in ips_to_deallocate:
ipam_driver.deallocate_ips_by_port(context, port_db, ip_address=ip)
for subnet_id in subnet_ids:
ipam_driver.allocate_ip_address(
context,
addresses,
port_db["network_id"],
port_db["id"],
reuse_after=CONF.QUARK.ipam_reuse_after,
subnets=[subnet_id])
# Need to return all existing addresses and the new ones
if addresses:
port_dict["addresses"] = port_db["ip_addresses"]
port_dict["addresses"].extend(addresses)
group_ids, security_groups = v.make_security_group_list(
context, port_dict.pop("security_groups", None))
net_driver = registry.DRIVER_REGISTRY.get_driver(
port_db.network["network_plugin"])
net_driver.update_port(context,
port_id=port_db.backend_key,
security_groups=group_ids)
port_dict["security_groups"] = security_groups
with context.session.begin():
port = db_api.port_update(context, port_db, **port_dict)
# NOTE(mdietz): fix for issue 112, we wanted the IPs to be in
# allocated_at order, so get a fresh object every time
if port_db in context.session:
context.session.expunge(port_db)
port_db = db_api.port_find(context, id=id, scope=db_api.ONE)
return v._make_port_dict(port_db)
def create_port(context, port):
"""Create a port
Create a port which is a connection point of a device (e.g., a VM
NIC) to attach to a L2 Neutron network.
: param context: neutron api request context
: param port: dictionary describing the port, with keys
as listed in the RESOURCE_ATTRIBUTE_MAP object in
neutron/api/v2/attributes.py. All keys will be populated.
"""
LOG.info("create_port for tenant %s" % context.tenant_id)
port_attrs = port["port"]
admin_only = ["mac_address", "device_owner", "bridge", "admin_state_up",
"use_forbidden_mac_range", "network_plugin",
"instance_node_id"]
utils.filter_body(context, port_attrs, admin_only=admin_only)
port_attrs = port["port"]
mac_address = utils.pop_param(port_attrs, "mac_address", None)
use_forbidden_mac_range = utils.pop_param(port_attrs,
"use_forbidden_mac_range", False)
segment_id = utils.pop_param(port_attrs, "segment_id")
fixed_ips = utils.pop_param(port_attrs, "fixed_ips")
if "device_id" not in port_attrs:
port_attrs['device_id'] = ""
device_id = port_attrs['device_id']
# NOTE(morgabra) This should be instance.node from nova, only needed
# for ironic_driver.
if "instance_node_id" not in port_attrs:
port_attrs['instance_node_id'] = ""
instance_node_id = port_attrs['instance_node_id']
net_id = port_attrs["network_id"]
port_id = uuidutils.generate_uuid()
net = db_api.network_find(context=context, limit=None, sorts=['id'],
marker=None, page_reverse=False, fields=None,
id=net_id, scope=db_api.ONE)
if not net:
raise n_exc.NetworkNotFound(net_id=net_id)
_raise_if_unauthorized(context, net)
# NOTE (Perkins): If a device_id is given, try to prevent multiple ports
# from being created for a device already attached to the network
if device_id:
existing_ports = db_api.port_find(context,
network_id=net_id,
device_id=device_id,
scope=db_api.ONE)
if existing_ports:
raise n_exc.BadRequest(
resource="port", msg="This device is already connected to the "
"requested network via another port")
# Try to fail early on quotas and save ourselves some db overhead
if fixed_ips:
quota.QUOTAS.limit_check(context, context.tenant_id,
fixed_ips_per_port=len(fixed_ips))
if not STRATEGY.is_provider_network(net_id):
# We don't honor segmented networks when they aren't "shared"
segment_id = None
port_count = db_api.port_count_all(context, network_id=[net_id],
tenant_id=[context.tenant_id])
quota.QUOTAS.limit_check(
context, context.tenant_id,
ports_per_network=port_count + 1)
else:
if not segment_id:
raise q_exc.AmbiguousNetworkId(net_id=net_id)
network_plugin = utils.pop_param(port_attrs, "network_plugin")
if not network_plugin:
network_plugin = net["network_plugin"]
port_attrs["network_plugin"] = network_plugin
ipam_driver = _get_ipam_driver(net, port=port_attrs)
net_driver = _get_net_driver(net, port=port_attrs)
# NOTE(morgabra) It's possible that we select a driver different than
# the one specified by the network. However, we still might need to use
# this for some operations, so we also fetch it and pass it along to
# the backend driver we are actually using.
base_net_driver = _get_net_driver(net)
# TODO(anyone): security groups are not currently supported on port create.
# Please see JIRA:NCP-801
security_groups = utils.pop_param(port_attrs, "security_groups")
if security_groups is not None:
raise q_exc.SecurityGroupsNotImplemented()
group_ids, security_groups = _make_security_group_list(context,
security_groups)
quota.QUOTAS.limit_check(context, context.tenant_id,
security_groups_per_port=len(group_ids))
addresses = []
backend_port = None
with utils.CommandManager().execute() as cmd_mgr:
@cmd_mgr.do
def _allocate_ips(fixed_ips, net, port_id, segment_id, mac,
**kwargs):
if fixed_ips:
if (STRATEGY.is_provider_network(net_id) and
not context.is_admin):
raise n_exc.NotAuthorized()
ips, subnets = split_and_validate_requested_subnets(context,
net_id,
segment_id,
fixed_ips)
kwargs["ip_addresses"] = ips
kwargs["subnets"] = subnets
ipam_driver.allocate_ip_address(
context, addresses, net["id"], port_id,
CONF.QUARK.ipam_reuse_after, segment_id=segment_id,
mac_address=mac, **kwargs)
@cmd_mgr.undo
def _allocate_ips_undo(addr, **kwargs):
LOG.info("Rolling back IP addresses...")
if addresses:
for address in addresses:
try:
with context.session.begin():
ipam_driver.deallocate_ip_address(context, address,
**kwargs)
except Exception:
LOG.exception("Couldn't release IP %s" % address)
@cmd_mgr.do
def _allocate_mac(net, port_id, mac_address,
use_forbidden_mac_range=False,
**kwargs):
mac = ipam_driver.allocate_mac_address(
context, net["id"], port_id, CONF.QUARK.ipam_reuse_after,
mac_address=mac_address,
use_forbidden_mac_range=use_forbidden_mac_range, **kwargs)
return mac
@cmd_mgr.undo
def _allocate_mac_undo(mac, **kwargs):
LOG.info("Rolling back MAC address...")
if mac:
try:
with context.session.begin():
ipam_driver.deallocate_mac_address(context,
mac["address"])
except Exception:
LOG.exception("Couldn't release MAC %s" % mac)
@cmd_mgr.do
def _allocate_backend_port(mac, addresses, net, port_id, **kwargs):
backend_port = net_driver.create_port(
context, net["id"],
port_id=port_id,
security_groups=group_ids,
device_id=device_id,
instance_node_id=instance_node_id,
mac_address=mac,
addresses=addresses,
base_net_driver=base_net_driver)
_filter_backend_port(backend_port)
return backend_port
@cmd_mgr.undo
def _allocate_back_port_undo(backend_port,
**kwargs):
LOG.info("Rolling back backend port...")
try:
backend_port_uuid = None
if backend_port:
backend_port_uuid = backend_port.get("uuid")
net_driver.delete_port(context, backend_port_uuid)
except Exception:
LOG.exception(
"Couldn't rollback backend port %s" % backend_port)
@cmd_mgr.do
def _allocate_db_port(port_attrs, backend_port, addresses, mac,
**kwargs):
port_attrs["network_id"] = net["id"]
port_attrs["id"] = port_id
port_attrs["security_groups"] = security_groups
LOG.info("Including extra plugin attrs: %s" % backend_port)
port_attrs.update(backend_port)
with context.session.begin():
new_port = db_api.port_create(
context, addresses=addresses, mac_address=mac["address"],
backend_key=backend_port["uuid"], **port_attrs)
return new_port
@cmd_mgr.undo
def _allocate_db_port_undo(new_port,
**kwargs):
LOG.info("Rolling back database port...")
if not new_port:
return
try:
with context.session.begin():
db_api.port_delete(context, new_port)
except Exception:
LOG.exception(
"Couldn't rollback db port %s" % backend_port)
# addresses, mac, backend_port, new_port
mac = _allocate_mac(net, port_id, mac_address,
use_forbidden_mac_range=use_forbidden_mac_range)
_allocate_ips(fixed_ips, net, port_id, segment_id, mac)
backend_port = _allocate_backend_port(mac, addresses, net, port_id)
new_port = _allocate_db_port(port_attrs, backend_port, addresses, mac)
return v._make_port_dict(new_port)