def _check_peer_endpoint_ip_versions(self, group_id, peer_cidrs):
"""Ensure all CIDRs in endpoint group have the same IP version.
Will return the IP version, so it can be used for inter-group testing.
"""
if len(peer_cidrs) == 1:
return netaddr.IPNetwork(peer_cidrs[0]).version
ip_versions = set([netaddr.IPNetwork(pc).version for pc in peer_cidrs])
if len(ip_versions) > 1:
raise vpnaas.MixedIPVersionsForIPSecEndpoints(group=group_id)
return ip_versions.pop()
def _check_local_endpoint_ip_versions(self, group_id, local_subnets):
"""Ensure all subnets in endpoint group have the same IP version.
Will return the IP version, so it can be used for inter-group testing.
"""
if len(local_subnets) == 1:
return local_subnets[0]['ip_version']
ip_versions = set([subnet['ip_version'] for subnet in local_subnets])
if len(ip_versions) > 1:
raise vpnaas.MixedIPVersionsForIPSecEndpoints(group=group_id)
return ip_versions.pop()