+++ /dev/null
-/*******************************************************************************\r
- * ============LICENSE_START==================================================\r
- * * org.onap.dmaap\r
- * * ===========================================================================\r
- * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
- * * ===========================================================================\r
- * * Licensed under the Apache License, Version 2.0 (the "License");\r
- * * you may not use this file except in compliance with the License.\r
- * * You may obtain a copy of the License at\r
- * * \r
- * * http://www.apache.org/licenses/LICENSE-2.0\r
- * * \r
- * * Unless required by applicable law or agreed to in writing, software\r
- * * distributed under the License is distributed on an "AS IS" BASIS,\r
- * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
- * * See the License for the specific language governing permissions and\r
- * * limitations under the License.\r
- * * ============LICENSE_END====================================================\r
- * *\r
- * * ECOMP is a trademark and service mark of AT&T Intellectual Property.\r
- * *\r
- ******************************************************************************/\r
-\r
-\r
-package com.att.research.datarouter.node;\r
-\r
-import java.net.*;\r
-\r
-/**\r
- * Compare IP addresses as byte arrays to a subnet specified as a CIDR\r
- */\r
-public class SubnetMatcher {\r
- private byte[] sn;\r
- private int len;\r
- private int mask;\r
- /**\r
- * Construct a subnet matcher given a CIDR\r
- * @param subnet The CIDR to match\r
- */\r
- public SubnetMatcher(String subnet) {\r
- int i = subnet.lastIndexOf('/');\r
- if (i == -1) {\r
- sn = NodeUtils.getInetAddress(subnet);\r
- len = sn.length;\r
- } else {\r
- len = Integer.parseInt(subnet.substring(i + 1));\r
- sn = NodeUtils.getInetAddress(subnet.substring(0, i));\r
- mask = ((0xff00) >> (len % 8)) & 0xff;\r
- len /= 8;\r
- }\r
- }\r
- /**\r
- * Is the IP address in the CIDR?\r
- * @param addr the IP address as bytes in network byte order\r
- * @return true if the IP address matches.\r
- */\r
- public boolean matches(byte[] addr) {\r
- if (addr.length != sn.length) {\r
- return(false);\r
- }\r
- for (int i = 0; i < len; i++) {\r
- if (addr[i] != sn[i]) {\r
- return(false);\r
- }\r
- }\r
- if (mask != 0 && ((addr[len] ^ sn[len]) & mask) != 0) {\r
- return(false);\r
- }\r
- return(true);\r
- }\r
-}\r