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# -*- coding: utf8 -*-
# ============LICENSE_START=======================================================
# org.onap.vvp/validation-scripts
# ===================================================================
# Copyright © 2017 AT&T Intellectual Property. All rights reserved.
# ===================================================================
#
# Unless otherwise specified, all software contained herein is licensed
# under the Apache License, Version 2.0 (the "License");
# you may not use this software except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
#
# Unless otherwise specified, all documentation contained herein is licensed
# under the Creative Commons License, Attribution 4.0 Intl. (the "License");
# you may not use this documentation except in compliance with the License.
# You may obtain a copy of the License at
#
# https://creativecommons.org/licenses/by/4.0/
#
# Unless required by applicable law or agreed to in writing, documentation
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# ============LICENSE_END============================================
#
#
import re
import socket
PARAM_FORMATS = [
["network", "string", "internal", re.compile(r"int_(.+?)_net_id")],
["network", "string", "internal", re.compile(r"int_(.+?)_net_name")],
["network", "string", "external", re.compile(r"(.+?)_net_id")],
["network", "string", "external", re.compile(r"(.+?)_net_name")],
]
RESOURCE_FORMATS = [
re.compile(r"int_(.+?)_network"), # OS::ContrailV2::VirtualNetwork
re.compile(r"int_(.+?)_RVN"), # OS::ContrailV2::VirtualNetwork
re.compile(r"int_(.+?)"), # OS::Neutron::Net
]
def get_network_role_and_type(resource):
"""
Derive the network role and type (internal vs. external) from an
OS::Neutron::Port.
:param resource: dict of Resource attributes
:return: tuple of (network_role, network_type) where network_type is
'internal' or 'external'. Returns (None, None) if resource
is not a port or the values cannot be derived.
"""
if not isinstance(resource, dict):
return None, None
if resource.get("type", "") != "OS::Neutron::Port":
return None, None
network_props = resource.get("properties", {}).get("network", {})
is_resource = "get_resource" in network_props
if is_resource:
network = network_props.get("get_resource", "")
else:
network = network_props.get("get_param", "")
if is_resource: # connecting to an network in the template
for format in RESOURCE_FORMATS:
m = format.match(network)
if m and m.group(1):
return m.group(1), "internal"
else:
for format in PARAM_FORMATS:
m = format[3].match(network)
if m and m.group(1):
return m.group(1), format[2]
return None, None
def get_network_role_from_port(resource):
"""
Get the network-role from a OS::Neutron::Port resource. Returns None
if resource is not a port or the network-role cannot be derived
"""
return get_network_role_and_type(resource)[0]
def get_network_roles(resources, of_type=""):
"""
Returns the network roles derived from the OS::Neutron::Port resources
in the collection of ``resources``. If ``of_type`` is not specified
then all network roles will be returned, or ``external`` or ``internal``
can be passed to select only those network roles
:param resources: collection of resource attributes (dict)
:param of_type: "internal" or "external"
:return: set of network roles discovered
"""
valid_of_type = ("", "external", "internal")
if of_type not in ("", "external", "internal"):
raise RuntimeError("of_type must one of " + ", ".join(valid_of_type))
network_roles = set()
for v in resources.values():
nr, nt = get_network_role_and_type(v)
if not nr:
continue
if not of_type:
network_roles.add(nr)
elif of_type and of_type == nt:
network_roles.add(nr)
return network_roles
def get_network_type_from_port(resource):
"""
Get the network-type (internal or external) from an OS::Neutron::Port
resource. Returns None if the resource is not a port or the type
cannot be derived.
"""
return get_network_role_and_type(resource)[1]
def is_valid_ip_address(ip_address, ip_type="ipv4"):
"""
check if an ip address is valid
"""
if ip_type == "ipv4":
return is_valid_ipv4_address(ip_address)
elif ip_type == "ipv6":
return is_valid_ipv6_address(ip_address)
return False
def is_valid_ipv4_address(ip_address):
"""
check if an ip address of the type ipv4
is valid
"""
try:
socket.inet_pton(socket.AF_INET, ip_address)
except AttributeError:
try:
socket.inet_aton(ip_address)
except (OSError, socket.error):
return False
return ip_address.count(".") == 3
except (OSError, socket.error):
return False
return True
def is_valid_ipv6_address(ip_address):
"""
check if an ip address of the type ipv6
is valid
"""
try:
socket.inet_pton(socket.AF_INET6, ip_address)
except (OSError, socket.error):
return False
return True
def property_uses_get_resource(resource, property_name):
"""
returns true if a port's network property
uses the get_resource function
"""
if not isinstance(resource, dict):
return False
if "properties" not in resource:
return False
for k1, v1 in resource["properties"].items():
if k1 != property_name:
continue
if isinstance(v1, dict) and "get_resource" in v1:
return True
return False
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