| /** |
| * Copyright 2003-2005 Arthur van Hoff, Rick Blair |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file 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. |
| */ |
| package org.apache.activemq.jmdns; |
| |
| /** |
| * DNS constants. |
| * |
| * @version %I%, %G% |
| * @author Arthur van Hoff, Jeff Sonstein, Werner Randelshofer, Pierre Frisch, Rick Blair |
| */ |
| final class DNSConstants |
| { |
| |
| // changed to final class - jeffs |
| final static String MDNS_GROUP = "224.0.0.251"; |
| final static String MDNS_GROUP_IPV6 = "FF02::FB"; |
| final static int MDNS_PORT = 5353; |
| final static int DNS_PORT = 53; |
| final static int DNS_TTL = 60 * 60; // default one hour TTL |
| // final static int DNS_TTL = 120 * 60; // two hour TTL (draft-cheshire-dnsext-multicastdns.txt ch 13) |
| |
| final static int MAX_MSG_TYPICAL = 1460; |
| final static int MAX_MSG_ABSOLUTE = 8972; |
| |
| final static int FLAGS_QR_MASK = 0x8000; // Query response mask |
| final static int FLAGS_QR_QUERY = 0x0000; // Query |
| final static int FLAGS_QR_RESPONSE = 0x8000; // Response |
| |
| final static int FLAGS_AA = 0x0400; // Authorative answer |
| final static int FLAGS_TC = 0x0200; // Truncated |
| final static int FLAGS_RD = 0x0100; // Recursion desired |
| final static int FLAGS_RA = 0x8000; // Recursion available |
| |
| final static int FLAGS_Z = 0x0040; // Zero |
| final static int FLAGS_AD = 0x0020; // Authentic data |
| final static int FLAGS_CD = 0x0010; // Checking disabled |
| |
| final static int CLASS_IN = 1; // Final Static Internet |
| final static int CLASS_CS = 2; // CSNET |
| final static int CLASS_CH = 3; // CHAOS |
| final static int CLASS_HS = 4; // Hesiod |
| final static int CLASS_NONE = 254; // Used in DNS UPDATE [RFC 2136] |
| final static int CLASS_ANY = 255; // Not a DNS class, but a DNS query class, meaning "all classes" |
| final static int CLASS_MASK = 0x7FFF; // Multicast DNS uses the bottom 15 bits to identify the record class... |
| final static int CLASS_UNIQUE = 0x8000; // ... and the top bit indicates that all other cached records are now invalid |
| |
| final static int TYPE_IGNORE = 0; // This is a hack to stop further processing |
| final static int TYPE_A = 1; // Address |
| final static int TYPE_NS = 2; // Name Server |
| final static int TYPE_MD = 3; // Mail Destination |
| final static int TYPE_MF = 4; // Mail Forwarder |
| final static int TYPE_CNAME = 5; // Canonical Name |
| final static int TYPE_SOA = 6; // Start of Authority |
| final static int TYPE_MB = 7; // Mailbox |
| final static int TYPE_MG = 8; // Mail Group |
| final static int TYPE_MR = 9; // Mail Rename |
| final static int TYPE_NULL = 10; // NULL RR |
| final static int TYPE_WKS = 11; // Well-known-service |
| final static int TYPE_PTR = 12; // Domain Name pofinal static inter |
| final static int TYPE_HINFO = 13; // Host information |
| final static int TYPE_MINFO = 14; // Mailbox information |
| final static int TYPE_MX = 15; // Mail exchanger |
| final static int TYPE_TXT = 16; // Arbitrary text string |
| final static int TYPE_RP = 17; // for Responsible Person [RFC1183] |
| final static int TYPE_AFSDB = 18; // for AFS Data Base location [RFC1183] |
| final static int TYPE_X25 = 19; // for X.25 PSDN address [RFC1183] |
| final static int TYPE_ISDN = 20; // for ISDN address [RFC1183] |
| final static int TYPE_RT = 21; // for Route Through [RFC1183] |
| final static int TYPE_NSAP = 22; // for NSAP address, NSAP style A record [RFC1706] |
| final static int TYPE_NSAP_PTR = 23; // |
| final static int TYPE_SIG = 24; // for security signature [RFC2931] |
| final static int TYPE_KEY = 25; // for security key [RFC2535] |
| final static int TYPE_PX = 26; // X.400 mail mapping information [RFC2163] |
| final static int TYPE_GPOS = 27; // Geographical Position [RFC1712] |
| final static int TYPE_AAAA = 28; // IP6 Address [Thomson] |
| final static int TYPE_LOC = 29; // Location Information [Vixie] |
| final static int TYPE_NXT = 30; // Next Domain - OBSOLETE [RFC2535, RFC3755] |
| final static int TYPE_EID = 31; // Endpoint Identifier [Patton] |
| final static int TYPE_NIMLOC = 32; // Nimrod Locator [Patton] |
| final static int TYPE_SRV = 33; // Server Selection [RFC2782] |
| final static int TYPE_ATMA = 34; // ATM Address [Dobrowski] |
| final static int TYPE_NAPTR = 35; // Naming Authority Pointer [RFC2168, RFC2915] |
| final static int TYPE_KX = 36; // Key Exchanger [RFC2230] |
| final static int TYPE_CERT = 37; // CERT [RFC2538] |
| final static int TYPE_A6 = 38; // A6 [RFC2874] |
| final static int TYPE_DNAME = 39; // DNAME [RFC2672] |
| final static int TYPE_SINK = 40; // SINK [Eastlake] |
| final static int TYPE_OPT = 41; // OPT [RFC2671] |
| final static int TYPE_APL = 42; // APL [RFC3123] |
| final static int TYPE_DS = 43; // Delegation Signer [RFC3658] |
| final static int TYPE_SSHFP = 44; // SSH Key Fingerprint [RFC-ietf-secsh-dns-05.txt] |
| final static int TYPE_RRSIG = 46; // RRSIG [RFC3755] |
| final static int TYPE_NSEC = 47; // NSEC [RFC3755] |
| final static int TYPE_DNSKEY = 48; // DNSKEY [RFC3755] |
| final static int TYPE_UINFO = 100; // [IANA-Reserved] |
| final static int TYPE_UID = 101; // [IANA-Reserved] |
| final static int TYPE_GID = 102; // [IANA-Reserved] |
| final static int TYPE_UNSPEC = 103; // [IANA-Reserved] |
| final static int TYPE_TKEY = 249; // Transaction Key [RFC2930] |
| final static int TYPE_TSIG = 250; // Transaction Signature [RFC2845] |
| final static int TYPE_IXFR = 251; // Incremental transfer [RFC1995] |
| final static int TYPE_AXFR = 252; // Transfer of an entire zone [RFC1035] |
| final static int TYPE_MAILA = 253; // Mailbox-related records (MB, MG or MR) [RFC1035] |
| final static int TYPE_MAILB = 254; // Mail agent RRs (Obsolete - see MX) [RFC1035] |
| final static int TYPE_ANY = 255; // Request for all records [RFC1035] |
| |
| //Time Intervals for various functions |
| |
| final static int SHARED_QUERY_TIME = 20; //milliseconds before send shared query |
| final static int QUERY_WAIT_INTERVAL = 225; //milliseconds between query loops. |
| final static int PROBE_WAIT_INTERVAL = 250; //milliseconds between probe loops. |
| final static int RESPONSE_MIN_WAIT_INTERVAL = 20; //minimal wait interval for response. |
| final static int RESPONSE_MAX_WAIT_INTERVAL = 115; //maximal wait interval for response |
| final static int PROBE_CONFLICT_INTERVAL = 1000; //milliseconds to wait after conflict. |
| final static int PROBE_THROTTLE_COUNT = 10; //After x tries go 1 time a sec. on probes. |
| final static int PROBE_THROTTLE_COUNT_INTERVAL = 5000; //We only increment the throttle count, if |
| // the previous increment is inside this interval. |
| final static int ANNOUNCE_WAIT_INTERVAL = 1000; //milliseconds between Announce loops. |
| final static int RECORD_REAPER_INTERVAL = 10000; //milliseconds between cache cleanups. |
| final static int KNOWN_ANSWER_TTL = 120; |
| final static int ANNOUNCED_RENEWAL_TTL_INTERVAL = DNS_TTL * 500; // 50% of the TTL in milliseconds |
| } |
