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Norman Maurer 1672b6d12c
Add support for TCP fallback when we receive a truncated DnsResponse (#9139)
Motivation:

Sometimes DNS responses can be very large which mean they will not fit in a UDP packet. When this is happening the DNS server will set the TC flag (truncated flag) to tell the resolver that the response was truncated. When a truncated response was received we should allow to retry via TCP and use the received response (if possible) as a replacement for the truncated one.

See https://tools.ietf.org/html/rfc7766.

Modifications:

- Add support for TCP fallback by allow to specify a socketChannelFactory / socketChannelType on the DnsNameResolverBuilder. If this is set to something different then null we will try to fallback to TCP.
- Add decoder / encoder for TCP
- Add unit tests

Result:

Support for TCP fallback as defined by https://tools.ietf.org/html/rfc7766 when using DnsNameResolver.
2019-05-17 14:37:11 +02:00
.github Use GitHub Issue/PR Template Feature 2016-12-07 11:40:26 -08:00
.mvn support publishing snapshots from docker based ci (#8634) 2018-12-07 05:43:06 +01:00
all Always include classes from all native transports no matter on which platfrom netty-all is build (#9111) 2019-04-30 23:23:48 +02:00
bom [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
buffer Fix incorrect behavior of ReadOnlyByteBufferBuf.getBytes(int,ByteBuffer) (#9125) 2019-05-13 07:00:06 +02:00
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codec-dns Add support for TCP fallback when we receive a truncated DnsResponse (#9139) 2019-05-17 14:37:11 +02:00
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common AsciiString.lastIndexOf(...) is implemented incorrectly (#9103) 2019-05-13 07:03:32 +02:00
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docker Add docker-compose file to compile / test with graalvm (#9072) 2019-04-29 08:33:39 +02:00
example Allow to specify KeyStore type in SslContext (#9003) 2019-05-10 07:29:14 +02:00
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resolver-dns Add support for TCP fallback when we receive a truncated DnsResponse (#9139) 2019-05-17 14:37:11 +02:00
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transport Replace all logic that checks Null with the ObjectUtil utility class (#9145) 2019-05-13 19:53:45 +02:00
transport-native-epoll [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
transport-native-kqueue Revert "KQueueEventLoop won't unregister active channels reusing a file descriptor (#9114)" 2019-05-07 16:44:41 +02:00
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.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
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README.md Provide an Automatic-Module-Name for the netty-all artifact fixes #7644 2018-01-27 20:31:16 +01:00
run-example.sh Add UptimeServer and adjust UptimeClient's code style. 2017-04-28 07:41:07 +02:00

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.all
  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.