models.py 文件源码

def allocation_pools(self):
        _cache = self.get("_allocation_pool_cache")
        if _cache:
            pools = json.loads(_cache)
            return pools
        else:
            if self["ip_policy"]:
                ip_policy_cidrs = self["ip_policy"].get_cidrs_ip_set()
            else:
                ip_policy_cidrs = netaddr.IPSet([])

            cidr = netaddr.IPSet([netaddr.IPNetwork(self["cidr"])])
            allocatable = cidr - ip_policy_cidrs
            pools = _pools_from_cidr(allocatable)
            return pools