github.com/fafucoder/cilium@v1.6.11/pkg/ipam/blacklist.go (about)

     1  // Copyright 2016-2019 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package ipam
    16  
    17  import (
    18  	"net"
    19  )
    20  
    21  // Contains method is used to check if a particular IP is blacklisted or not.
    22  func (blacklist *IPBlacklist) Contains(ip net.IP) bool {
    23  	if _, ok := blacklist.ips[ip.String()]; ok {
    24  		return true
    25  	}
    26  
    27  	for _, element := range blacklist.ipNets {
    28  		if element.ipNet.Contains(ip) {
    29  			return true
    30  		}
    31  	}
    32  
    33  	return false
    34  }