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Jason Tedor a6dfd08812 Mark initialization of selector as privileged
Motivation:

Instrumenting the NIO selector implementation requires special
permissions. Yet, the code for performing this instrumentation is
executed in a manner that would require all code leading up to the
initialization to have the requisite permissions. In a restrictive
environment (e.g., under a security policy that only grants the
requisite permissions the Netty transport jar but not to application
code triggering the Netty initialization), then instrumeting the
selector will not succeed even if the security policy would otherwise
permit it.

Modifications:

This commit marks the necessary blocks as privileged. This enables
access to the necessary resources for instrumenting the selector. The
idea is that we are saying the Netty code is trusted, and as long as the
Netty code has been granted the necessary permissions, then we will
allow the caller access to these resources even though the caller itself
might not have the requisite permissions.

Result:

The selector can be instrumented in a restrictive security environment.
2016-08-05 19:01:57 +02:00
all [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
buffer Remove extra conditional check in retain 2016-08-05 13:09:26 +02:00
codec small performance fixes : unnecessary unboxing operations removed 2016-08-01 07:10:25 +02:00
codec-dns Removed custom split method as it is not effective anymore. 2016-08-01 21:49:33 +02:00
codec-haproxy Removed custom split method as it is not effective anymore. 2016-08-01 21:49:33 +02:00
codec-http Removed custom split method as it is not effective anymore. 2016-08-01 21:49:33 +02:00
codec-http2 [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
codec-memcache [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
codec-mqtt [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
codec-redis [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
codec-smtp [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
codec-socks [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
codec-stomp Removed custom split method as it is not effective anymore. 2016-08-01 21:49:33 +02:00
codec-xml [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
common Remove extra conditional check in retain 2016-08-05 13:09:26 +02:00
example [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
handler OpenSslEngine with no finalizer 2016-08-05 00:57:37 -07:00
handler-proxy Removed custom split method as it is not effective anymore. 2016-08-01 21:49:33 +02:00
license added support for Protobuf codec nano runtime 2016-01-19 21:39:17 +01:00
microbench retainSlice() unwrap ByteBuf 2016-07-29 11:16:44 -07:00
resolver [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
resolver-dns Fix RejectedExecutionException when using DnsAddressResolverGroup 2016-08-01 10:21:10 +02:00
tarball [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
testsuite [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
testsuite-osgi [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
transport Mark initialization of selector as privileged 2016-08-05 19:01:57 +02:00
transport-native-epoll removed unnecessary static holders 2016-08-03 06:17:31 -07:00
transport-rxtx removed unnecessary static holders 2016-08-03 06:17:31 -07:00
transport-sctp [#4204] Broken support of SCTP_INIT_MAXSTREAMS in *SctpServerChannel 2016-08-05 18:55:47 +02:00
transport-udt removed unnecessary static holders 2016-08-03 06:17:31 -07:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitignore Use shaded dependency on JCTools instead of copy and paste 2016-06-10 13:19:45 +02:00
.travis.yml Travis CI branch whitelisting 2013-03-11 09:55:43 +09:00
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
NOTICE.txt added support for Protobuf codec nano runtime 2016-01-19 21:39:17 +01:00
pom.xml [maven-release-plugin] prepare for next development iteration 2016-07-27 13:29:56 +02:00
README.md Updating Branches to look section to match the current branching structure of the project 2016-03-10 22:08:01 +01:00
run-example.sh Add an example client for codec-redis 2016-04-23 11:18:12 -07:00

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.