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Nick Hill 2ca526fac6 Ensure "full" ownership of msgs passed to EmbeddedChannel.writeInbound() (#9058)
Motivation

Pipeline handlers are free to "take control" of input buffers if they have singular refcount - in particular to mutate their raw data if non-readonly via discarding of read bytes, etc.

However there are various places (primarily unit tests) where a wrapped byte-array buffer is passed in and the wrapped array is assumed not to change (used after the wrapped buffer is passed to EmbeddedChannel.writeInbound()). This invalid assumption could result in unexpected errors, such as those exposed by #8931.

Modifications

Anywhere that the data passed to writeInbound() might be used again, ensure that either:
- A copy is used rather than wrapping a shared byte array, or
- The buffer is otherwise protected from modification by making it read-only

For the tests, copying is preferred since it still allows the "mutating" optimizations to be exercised.

Results

Avoid possible errors when pipeline assumes it has full control of input buffer.
2019-05-22 12:08:49 +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 possible unsafe sharing of internal NIO buffer in CompositeByteBuf (#9169) 2019-05-22 11:07:06 +02:00
codec Ensure "full" ownership of msgs passed to EmbeddedChannel.writeInbound() (#9058) 2019-05-22 12:08:49 +02:00
codec-dns Add support for TCP fallback when we receive a truncated DnsResponse (#9139) 2019-05-17 14:37:11 +02:00
codec-haproxy [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
codec-http Ensure "full" ownership of msgs passed to EmbeddedChannel.writeInbound() (#9058) 2019-05-22 12:08:49 +02:00
codec-http2 Only use static Exception instances when we can ensure addSuppressed … (#9152) 2019-05-17 22:23:02 +02:00
codec-memcache codec-memcache: copy metadata in binary full request response (#9160) 2019-05-22 11:05:52 +02:00
codec-mqtt [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
codec-redis [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
codec-smtp [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
codec-socks [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
codec-stomp [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
codec-xml [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
common Only use static Exception instances when we can ensure addSuppressed … (#9152) 2019-05-17 22:23:02 +02:00
dev-tools [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
docker Update to latest JDK13 EA release (#9166) 2019-05-21 20:10:09 +02:00
example Allow to specify KeyStore type in SslContext (#9003) 2019-05-10 07:29:14 +02:00
handler Log deprecation info message when using 'io.netty.handler.ssl.openssl.useKeyManagerFactory' and ignore it when using BoringSSL (#9162) 2019-05-22 08:40:19 +02:00
handler-proxy [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
license Add the NOTICE of the forked portion of Apache Harmony 2018-01-30 11:22:51 +01:00
microbench Ensure "full" ownership of msgs passed to EmbeddedChannel.writeInbound() (#9058) 2019-05-22 12:08:49 +02:00
resolver [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
resolver-dns Only try to use reflection to access default nameservers when using Java8 and lower (#9157) 2019-05-18 08:21:33 +02:00
tarball [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
testsuite KQueueEventLoop | EpollEventLoop may incorrectly update registration when FD is reused. 2019-05-22 09:23:09 +02:00
testsuite-autobahn [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
testsuite-http2 [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
testsuite-native-image [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
testsuite-osgi [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
testsuite-shading [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
transport Don't double record stacktrace in Annotated*Exception (#9117) 2019-05-22 12:06:30 +02:00
transport-native-epoll KQueueEventLoop | EpollEventLoop may incorrectly update registration when FD is reused. 2019-05-22 09:23:09 +02:00
transport-native-kqueue KQueueEventLoop | EpollEventLoop may incorrectly update registration when FD is reused. 2019-05-22 09:23:09 +02:00
transport-native-unix-common Only use static Exception instances when we can ensure addSuppressed … (#9152) 2019-05-17 22:23:02 +02:00
transport-native-unix-common-tests [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
transport-rxtx [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
transport-sctp [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
transport-udt [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Add .gitignore for docker-sync stuff 2019-03-19 14:03:15 +01:00
CONTRIBUTING.md Move the pull request guide to the developer guide 2014-03-12 13:13:58 +09:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
mvnw Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
mvnw.cmd Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
NOTICE.txt Add the NOTICE of the forked portion of Apache Harmony 2018-01-30 11:22:51 +01:00
pom.xml [maven-release-plugin] prepare for next development iteration 2019-04-30 16:42:29 +00:00
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.