Commit Graph

541 Commits

Author SHA1 Message Date
Norman Maurer
aebbb862ac Add support for ALPN when using openssl + NPN client mode and support for CipherSuiteFilter
Motivation:

To support HTTP2 we need APLN support. This was not provided before when using OpenSslEngine, so SSLEngine (JDK one) was the only bet.
Beside this CipherSuiteFilter was not supported

Modifications:

- Upgrade netty-tcnative and make use of new features to support ALPN and NPN in server and client mode.
- Guard against segfaults after the ssl pointer is freed
- support correctly different failure behaviours
- add support for CipherSuiteFilter

Result:

Be able to use OpenSslEngine for ALPN / NPN for server and client.
2015-04-10 18:52:34 +02:00
Frederic Bregier
190cbf55e4 Fix incorrect null value check in TrafficCounter
In TrafficCounter, a recent change makes the contract of the API (the
constructor) wrong and lead to issue with GlobalChannelTrafficCounter
where executor must be null.

Motivation:
TrafficCounter executor argument in constructor might be null, as
explained in the API, for some particular cases where no executor are
needed (relevant tasks being taken by the caller as in
GlobalChannelTrafficCounter).
A null pointer exception is raised while it should not since it is
legal.

Modifications:
Remove the 2 null checking for this particular attribute.
Note that when null, the attribute is not reached nor used (a null
checking condition later on is applied).

Result:
No more null exception raized while it should not.

This shall be made also to 4.0, 4.1 (present) and master. 3.10 is not
concerned.
2015-04-06 18:27:56 +02:00
Trustin Lee
2e509f7bb7 Fix unbounded expansion of cumulative buffer in SslHandler
Related: #3567

Motivation:

SslHandler.channelReadComplete() forgets to call
super.channelReadComplete(), which discards read bytes from the
cumulative buffer.  As a result, the cumulative buffer can expand its
capacity unboundedly.

Modifications:

Call super.channelReadComplete() instead of calling
ctx.fireChannelReadComplete()

Result:

Fixes #3567
2015-04-02 14:54:29 +09:00
Trustin Lee
44eeb5f6b4 Fix intermittent test failure in LoggingHandlerTest
Motivation:

LoggingHandlerTest sometimes failure due to unexpected log messages
logged due to the automatic reclaimation of thread-local objects.

  Expectation failure on verify:
    Appender.doAppend([DEBUG] Freed 3 thread-local buffer(s) from thread: nioEventLoopGroup-23-0): expected: 1, actual: 0
    Appender.doAppend([DEBUG] Freed 9 thread-local buffer(s) from thread: nioEventLoopGroup-23-1): expected: 1, actual: 0
    Appender.doAppend([DEBUG] Freed 2 thread-local buffer(s) from thread: nioEventLoopGroup-23-2): expected: 1, actual: 0
    Appender.doAppend([DEBUG] Freed 4 thread-local buffer(s) from thread: nioEventLoopGroup-26-0): expected: 1, actual: 0
    Appender.doAppend(matchesLog(expected: ".+CLOSE$", got: "[id: 0xembedded, embedded => embedded] CLOSE")): expected: 1, actual: 0

Modifications:

Add the mock appender to the related logger only

Result:

No more intermittent test failures
2015-03-31 15:08:52 +09:00
Trustin Lee
f4e527c64d Don't trigger IOException at ChunkedStream.isEndOfInput()
Related: #3368

Motivation:

ChunkedWriteHandler checks if the return value of
ChunkedInput.isEndOfInput() after calling ChunkedInput.close().

This makes ChunkedStream.isEndOfInput() trigger an IOException, which is
originally triggered by PushBackInputStream.read().

By contract, ChunkedInput.isEndOfInput() should not raise an IOException
even when the underlying stream is closed.

Modifications:

Add a boolean flag that keeps track of whether the underlying stream has
been closed or not, so that ChunkedStream.isEndOfInput() does not
propagate the IOException from PushBackInputStream.

Result:

Fixes #3368
2015-03-31 11:38:25 +09:00
Norman Maurer
a2428c7e47 Add supported for X509ExtendedTrustManager when using OpenSslEngine
Motivation:

For some use cases X509ExtendedTrustManager is needed as it allows to also access the SslEngine during validation.

Modifications:

Add support for X509ExtendedTrustManager on java >= 7

Result:

It's now possible to use X509ExtendedTrustManager with OpenSslEngine
2015-03-30 09:05:18 +02:00
nmittler
0fe67cfba5 Using public LogLevel for HTTP/2 frame logging.
Motivation:

The Http2FrameLogger is currently using the internal logging classes. We should change this so that it's using the public classes and then converts internally.

Modifications:

Modified Http2FrameLogger and the examples to use the public LogLevel class.

Result:

Fixes #2512
2015-03-17 15:10:35 -07:00
Leonardo Freitas Gomes
a97e413a65 Ensure server preference order in ALPN
Motivation:
With the current implementation the client protocol preference list
takes precedence over the one of the server, since the select method
will return the first item, in the client list, that matches any of the
protocols supported by the server. This violates the recommendation of
http://tools.ietf.org/html/rfc7301#section-3.2.

It will also fail with the current implementation of Chrome, which
sends back Extension application_layer_protocol_negotiation, protocols:
[http/1.1, spdy/3.1, h2-14]

Modifications:
Changed the protocol negotiator to prefer server’s list. Added a test
case that demonstrates the issue and that is fixed with the
modifications of this commit.

Result:
Server’s preference list is used.
2015-03-17 07:28:53 +01:00
Trustin Lee
8c135cdd55 Add a new constructor without handler parameter to TrafficCounter
Related: #3476

Motivation:

Some users use TrafficCounter for other uses than we originally
intended, such as implementing their own traffic shaper.  In such a
case, a user does not want to specify an AbstractTrafficShapingHandler.

Modifications:

- Add a new constructor that does not require an
  AbstractTrafficShapingHandler, so that a user can use it without it.
- Simplify TrafficMonitoringTask
- Javadoc cleanup

Result:

We open the possibility of using TrafficCounter for other purposes than
just using it with AbstractTrafficShapingHandler.  Eventually, we could
generalize it a little bit more, so that we can potentially use it for
other uses.
2015-03-10 11:28:11 +09:00
Norman Maurer
fce0989844 [maven-release-plugin] prepare for next development iteration 2015-03-03 02:06:47 -05:00
Norman Maurer
ca3b1bc4b7 [maven-release-plugin] prepare release netty-4.1.0.Beta4 2015-03-03 02:05:52 -05:00
Norman Maurer
f20439b6d3 Various performance optimizations in OpenSslEngine
Motivation:

There are various places in OpenSslEngine wher we can do performance optimizations.

Modifications:

- Reduce JNI calls when possible
- Detect finished handshake as soon as possible
- Eliminate double calculations
- wrap multiple ByteBuffer if possible in a loop

Result:

Better performance
2015-02-09 06:20:19 +01:00
Norman Maurer
270e0785fd Log only on debug log level in OpenSslEngine
Motivation:

At the moment we log priming read and handshake errors via info log level and still throw a SSLException that contains the error. We should only log with debug level to generate less noise.

Modifications:

Change logging to debug level.

Result:

Less noise .
2015-02-07 06:01:58 +01:00
scottmitch
50a857cecf SonarQube issues OpenSslEngine
Motivation:
SonarQube (clinker.netty.io/sonar) reported a few 'critical' issues related to the OpenSslEngine.

Modifications:
- Remove potential for dereference of null variable.
- Remove duplicate null check and TODO cleanup.

Results:
Less potential for null dereference, cleaner code, and 1 less TODO.
2015-02-03 20:04:28 +01:00
Norman Maurer
200c6efc75 [#3364] Not use VoidChannelPromise in SslHandler to guard against IllegalStateException
Motivation:

SslHandler adds a pending write with an empty buffer and a VoidChannelPromise when a user flush and not pending writes are currently stored. This may produce an IllegalStateException later if the user try to add a ChannelFutureListener to the promise in the next ChannelOutboundHandler.

Modifications:

Replace ctx.voidPromise() with ctx.newPromise()

Result:

No more IllegalStateException possible
2015-01-30 19:23:03 +01:00
Norman Maurer
8bc21ecdd0 [#3376] Use IllegalArgumentException as replacement for NPE as stated in javadocs
Motivation:

SSLEngine specifies that IllegalArgumentException must be thrown if a null argument is given when using wrap(...) or unwrap(...).

Modifications:

Replace NullPointerException with IllegalArgumentException to match the javadocs.

Result:

Match the javadocs.
2015-01-30 05:56:20 +01:00
Norman Maurer
4619e88a7b [#3375] Correctly calculate the endOffset when wrap multiple ByteBuffer
Motivation:

We failed to correctly calculate the endOffset when wrap multiple ByteBuffer and so not wrapped everything when an offset > 0 is used.

Modifications:

Correctly calculate endOffset.

Result:

All ByteBuffers are correctly wrapped when offset > 0.
2015-01-30 05:37:17 +01:00
Trustin Lee
392fb764b6 Fix IndexOutOfBoundsException from SslHandler on JDK 8
Motivation:

When SslHandler.unwrap() copies SSL records into a heap buffer, it does
not update the start offset, causing IndexOutOfBoundsException.

Modifications:

- Copy to a heap buffer before calling unwrap() for simplicity
- Do not copy an empty buffer to a heap buffer.
  - unwrap(... EMPTY_BUFFER ...) never involves copying now.
- Use better parameter names for unwrap()
- Clean-up log messages

Result:

- Bugs fixed
- Cleaner code
2015-01-13 18:14:37 +09:00
Norman Maurer
1bb818bb59 Reduce memory copies when using OpenSslEngine with SslHandler
Motivation:

When using OpenSslEngine with the SslHandler it is possible to reduce memory copies by unwrap(...) multiple ByteBuffers at the same time. This way we can eliminate a memory copy that is needed otherwise to cumulate partial received data.

Modifications:

- Add OpenSslEngine.unwrap(ByteBuffer[],...) method that can be used to unwrap multiple src ByteBuffer a the same time
- Use a CompositeByteBuffer in SslHandler for inbound data so we not need to memory copy
- Add OpenSslEngine.unwrap(ByteBuffer[],...) in SslHandler if OpenSslEngine is used and the inbound ByteBuf is backed by more then one ByteBuffer
- Reduce object allocation

Result:

SslHandler is faster when using OpenSslEngine and produce less GC
2015-01-12 20:19:42 +01:00
Trustin Lee
cb7ab1f6a4 Fix a compilation error 2015-01-09 16:00:26 +09:00
Norman Maurer
50af9b916c Eliminate memory copy in ByteToMessageDecoder whenever possible
Motivation:

Currently when there are bytes left in the cumulation buffer we do a byte copy to produce the input buffer for the decode method. This can put quite some overhead on the impl.

Modification:

- Use a CompositeByteBuf to eliminate the byte copy.
- Allow to specify if a CompositeBytebug should be used or not as some handlers can only act on one ByteBuffer in an efficient way (like SslHandler :( ).

Result:

Performance improvement as shown in the following benchmark.

Without this patch:
[xxx@xxx ~]$ ./wrk-benchmark
Running 5m test @ http://xxx:8080/plaintext
  16 threads and 256 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency    20.19ms   38.34ms   1.02s    98.70%
    Req/Sec   241.10k    26.50k  303.45k    93.46%
  1153994119 requests in 5.00m, 155.84GB read
Requests/sec: 3846702.44
Transfer/sec:    531.93MB

With the patch:
[xxx@xxx ~]$ ./wrk-benchmark
Running 5m test @ http://xxx:8080/plaintext
  16 threads and 256 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency    17.34ms   27.14ms 877.62ms   98.26%
    Req/Sec   252.55k    23.77k  329.50k    87.71%
  1209772221 requests in 5.00m, 163.37GB read
Requests/sec: 4032584.22
Transfer/sec:    557.64MB
2015-01-09 15:56:30 +09:00
Trustin Lee
98731a51c8 Add the URL of the wiki for easier troubleshooting
Motivation:

When a user sees an error message, sometimes he or she does not know
what exactly he or she has to do to fix the problem.

Modifications:

Log the URL of the wiki pages that might help the user troubleshoot.

Result:

We are more friendly.
2015-01-08 12:45:34 +09:00
Trustin Lee
2c3f4a374a Do not log CNFE when tcnative is not in classpath
Motivation:

When a user deliberatively omitted netty-tcnative from classpath, he or
she will see an ugly stack trace of ClassNotFoundException.

Modifications:

Log more briefly when netty-tcnative is not in classpath.

Result:

Better-looking log at DEBUG level
2015-01-08 12:27:04 +09:00
Trustin Lee
df186f38a0 Do not pre-populate cipher suite conversion table
Motivation:

- There's no point of pre-population.
- Waste of memory and time because they are going to be cached lazily
- Some pre-populated cipher suites are ancient and will be unused

Modification:

- Remove cache pre-population

Result:

Sanity restored
2014-12-31 20:33:53 +09:00
Norman Maurer
405cdc89dd Only call JNI methods if really needed
Motivation:

Calling JNI methods is pretty expensive, so we should only do if needed.

Modifications:

Lazy call methods if needed.

Result:

Better performance.
2014-12-30 19:45:23 +09:00
Trustin Lee
ea5f38955a Raise an exception when the specified cipher suite is not available
Motivation:

SSL_set_cipher_list() in OpenSSL does not fail as long as at least one
cipher suite is available.  It is different from the semantics of
SSLEngine.setEnabledCipherSuites(), which raises an exception when the
list contains an unavailable cipher suite.

Modifications:

- Add OpenSsl.isCipherSuiteAvailable(String) which checks the
  availability of a cipher suite
- Raise an IllegalArgumentException when the specified cipher suite is
  not available

Result:

Fixed compatibility
2014-12-30 19:26:06 +09:00
Trustin Lee
7d50f7864c Implement OpenSslEngine.getSupportedCipherSuites() and get/setEnabledCipherSuites()
Motivation:

To make OpenSslEngine a full drop-in replacement, we need to implement
getSupportedCipherSuites() and get/setEnabledCipherSuites().

Modifications:

- Retrieve the list of the available cipher suites when initializing
  OpenSsl.
- Improve CipherSuiteConverter to understand SRP
- Add more test data to CipherSuiteConverterTest
- Add bulk-conversion method to CipherSuiteConverter

Result:

OpenSslEngine should now be a drop-in replacement for JDK SSLEngineImpl
for most cases.
2014-12-30 19:26:05 +09:00
Trustin Lee
a093f00b67 Cipher suite conversion between Java and OpenSSL
Related: #3285

Motivation:

When a user attempts to switch from JdkSslContext to OpenSslContext, he
or she will see the initialization failure if he or she specified custom
cipher suites.

Modifications:

- Provide a utility class that converts between Java cipher suite string
  and OpenSSL cipher suite string
- Attempt to convert the cipher suite so that a user can use the cipher
  suite string format of Java regardless of the chosen SslContext impl

Result:

- It is possible to convert all known cipher suite strings.
- It is possible to switch from JdkSslContext and OpenSslContext and
  vice versa without any configuration changes
2014-12-30 17:27:25 +09:00
Trustin Lee
a77070fe9f Clean-up 2014-12-29 15:55:57 +09:00
Frederic Bregier
2681112080 Fix big transfer and Write traffic shaping issues
Motivation:

Several issues were shown by various ticket (#2900 #2956).
Also use the improvement on writability user management from #3036.
And finally add a mixte handler, both for Global and Channels, with
the advantages of being uniquely created and using less memory and
less shaping.

Issue #2900

When a huge amount of data are written, the current behavior of the
TrafficShaping handler is to limit the delay to 15s, whatever the delay
the previous write has. This is wrong, and when a huge amount of writes
are done in a short time, the traffic is not correctly shapened.

Moreover, there is a high risk of OOM if one is not using in his/her own
handler for instance ChannelFuture.addListener() to handle the write
bufferisation in the TrafficShapingHandler.

This fix use the "user-defined writability flags" from #3036 to
allow the TrafficShapingHandlers to "user-defined" managed writability
directly, as for reading, thus using the default isWritable() and
channelWritabilityChanged().
This allows for instance HttpChunkedInput to be fully compatible.

The "bandwidth" compute on write is only on "acquired" write orders, not
on "real" write orders, which is wrong from statistic point of view.

Issue #2956

When using GlobalTrafficShaping, every write (and read) are
synchronized, thus leading to a drop of performance.
ChannelTrafficShaping is not touched by this issue since synchronized is
then correct (handler is per channel, so the synchronized).

Modifications:
The current write delay computation takes into account the previous
write delay and time to check is the 15s delay (maxTime) is really
exceeded or not (using last scheduled write time). The algorithm is
simplified and in the same time more accurate.

This proposal uses the #3036 improvement on user-defined writability
flags.

When the real write occurs, the statistics are update accordingly on a
new attribute (getRealWriteThroughput()).

To limit the synchronisations, all synchronized on
GlobalTrafficShapingHandler on submitWrite were removed. They are
replaced with a lock per channel (since synchronization is still needed
to prevent unordered write per channel), as in the sendAllValid method
for the very same reason.
Also all synchronized on TrafficCounter on read/writeTimeToWait() are
removed as they are unnecessary since already locked before by the
caller.
Still the creation and remove operations on lock per channel (PerChannel
object) are synchronized to prevent concurrency issue on this critical
part, but then limited.

Additionnal changes:
1) Use System.nanoTime() instead of System.currentTimeMillis() and
minimize calls
2) Remove / 10 ° 10 since no more sleep usage
3) Use nanoTime instead of currentTime such that time spend is computed,
not real time clock. Therefore the "now" relative time (nanoTime based)
is passed on all sub methods.
4) Take care of removal of the handler to force write all pending writes
and release read too
8) Review Javadoc to explicit:

- recommandations to take into account isWritable

- recommandations to provide reasonable message size according to
traffic shaping limit

- explicit "best effort" traffic shaping behavior when changing
configuration dynamically

Add a MixteGlobalChannelTrafficShapingHandler which allows to use only one
handler for mixing Global and Channel TSH. I enables to save more memory and
tries to optimize the traffic among various channels.

Result:
The traffic shaping is more stable, even with a huge number of writes in
short time by taking into consideration last scheduled write time.

The current implementation of TrafficShapingHandler using user-defined
writability flags and default isWritable() and
fireChannelWritabilityChanged works as expected.

The statistics are more valuable (asked write vs real write).

The Global TrafficShapingHandler should now have less "global"
synchronization, hoping to the minimum, but still per Channel as needed.

The GlobalChannel TrafficShapingHandler allows to have only one handler for all channels while still offering per channel in addition to global traffic shaping.

And finally maintain backward compatibility.
2014-12-29 15:47:06 +09:00
Norman Maurer
b8dd95b8ad Allow to set the context for which sessions can be used.
Motivation:

Openssl supports the SSL_CTX_set_session_id_context function to limit for which context a session can be used. We should support this.

Modifications:

Add OpenSslServerSessionContext that exposes a setSessionIdContext(...) method now.

Result:

It's now possible to use SSL_CTX_set_session_id_context.
2014-12-26 15:03:35 +01:00
Norman Maurer
8e6739ddc0 Explicit allow to enable / disable session cache
Motivation:

It is sometimes useful to enable / disable the session cache.

Modifications:

* Add OpenSslSessionContext.setSessionCacheEnabled(...) and isSessionCacheEnabled()

Result:

It is now possible to enable / disable cache on the fly
2014-12-26 14:57:10 +01:00
Norman Maurer
8a1c7f2ca6 Allow to enable/disable protocols on the OpenSslEngine
Motivation:

To be compatible with SSLEngine we need to support enable / disable procols on the OpenSslEngine

Modifications:

Implement OpenSslEngine.getSupportedProtocols() , getEnabledProtocols() and setEnabledProtocols(...)

Result:

Better compability with SSLEngine
2014-12-26 09:34:21 +01:00
Norman Maurer
7423db0b8e Add proper Openssl.SSLSession.getId() implementation
Motivation:

The current implementation not returns the real session as byte[] representation.

Modifications:

Create a proper Openssl.SSLSession.get() implementation which returns the real session as byte[].

Result:

More correct implementation
2014-12-26 09:30:32 +01:00
Norman Maurer
fb3b16d9d4 Allow to enable session cache when using OpenSsl
Motivation:

At the moment it is not possible to make use of the session cache when OpenSsl is used. This should be possible when server mode is used.

Modifications:

- Add OpenSslSessionContext (implements SSLSessionContext) which exposes all the methods to modify the session cache.
- Add various extra methods to OpenSslSessionContext for extra functionality
- Return OpenSslSessionContext when OpenSslEngine.getSession().getContext() is called.
- Add sessionContext() to SslContext
- Move OpenSsl specific session operations to OpenSslSessionContext and mark the old methods @deprecated

Result:

It's now possible to use session cache with OpenSsl
2014-12-26 09:22:38 +01:00
Trustin Lee
cf6eb70f93 Fix NoClassDefFoundError when netty-tcnative is unavailable
Motivation:

ProxyHandlerTest fails with NoClassDefFoundError raised by
SslContext.newClientContext().

Modifications:

Fix a missing 'return' statement that makes the switch-case block fall
through unncecessarily

Result:

- ProxyHandlerTest does not fail anymore.
- SslContext.newClientContext() does not raise NoClassDefFoundError
  anymore.
2014-12-26 15:44:39 +09:00
Norman Maurer
5c57b5de5b Check for errors without object allocation
Motivation:

At the moment we use SSL.getLastError() in unwrap(...) to check for error. This is very inefficient as it creates a new String for each check and we also use a String.startsWith(...) to detect if there was an error we need to handle.

Modifications:

Use SSL.getLastErrorNumber() to detect if we need to handle an error, as this only returns a long and so no String creation happens. Also the detection is much cheaper as we can now only compare longs. Once an error is detected the lately SSL.getErrorString(long) is used to conver the error number to a String and include it in log and exception message.

Result:

Performance improvements in OpenSslEngine.unwrap(...) due less object allocation and also faster comparations.
2014-12-22 21:09:49 +01:00
Norman Maurer
1729859c68 Use OpenSslClientContext as default if openssl is avaible
Motivation:

As we now support OpenSslEngine for client side, we should use it when avaible.

Modifications:

Use SslProvider.OPENSSL when openssl can be found

Result:

OpenSslEngine is used whenever possible
2014-12-22 21:08:04 +01:00
Norman Maurer
15ca81a565 Allow to use custom TrustManagerFactory for JdkSslServerContent and OpenSslServerContext
Motivation:

When using client auth it is sometimes needed to use a custom TrustManagerFactory.

Modifications:

Allow to pass in TrustManagerFactory

Result:

It's now possible to use custom TrustManagerFactories for JdkSslServerContext and OpenSslServerContext
2014-12-22 20:56:49 +01:00
Norman Maurer
393e3ea383 Use TrustManager for certificate verification
Motivation:

To make OpenSsl*Context a drop in replacement for JdkSsl*Context we need to use TrustManager.

Modifications:

Correctly hook in the TrustManager

Result:

Better compatibility
2014-12-22 20:26:53 +01:00
Norman Maurer
473c23aec9 Allow to enable client authentication on the OpenSslEngine
Motivation:

At the moment there is no way to enable client authentication when using OpenSslEngine. This limits the uses of OpenSslEngine.

Modifications:

Add support for different authentication modes.

Result:

OpenSslEngine can now also be used when client authenticiation is needed.
2014-12-22 20:18:51 +01:00
Norman Maurer
87eca066da More complete OpenSslEngine SSLSession implementation
Motivation:

The current SSLSession implementation used by OpenSslEngine does not support various operations and so may not be a good replacement by the SSLEngine provided by the JDK implementation.

Modifications:

- Add SSLSession.getCreationTime()
- Add SSLSession.getLastAccessedTime()
- Add SSLSession.putValue(...), getValue(...), removeValue(...), getValueNames()
- Add correct SSLSession.getProtocol()
- Ensure OpenSSLEngine.getSession() is thread-safe
- Use optimized AtomicIntegerFieldUpdater when possible

Result:

More complete OpenSslEngine SSLSession implementation
2014-12-22 20:12:51 +01:00
Norman Maurer
682df517c9 Add OpenSslClientContext to allow creating SslEngine for client side
Motivation:

We only support openssl for server side at the moment but it would be also useful for client side.

Modification:

* Upgrade to new netty-tcnative snapshot to support client side openssl support
* Add OpenSslClientContext which can be used to create SslEngine for client side usage
* Factor out common logic between OpenSslClientContext and OpenSslServerContent into new abstract base class called OpenSslContext
* Correctly detect handshake failures as soon as possible
* Guard against segfault caused by multiple calls to destroyPools(). This can happen if OpenSslContext throws an exception in the constructor and the finalize() method is called later during GC

Result:

openssl can be used for client and servers now.
2014-12-22 19:38:30 +01:00
Norman Maurer
b7e82b2ccb Efficiently handle writing ( wrap(...) ) of CompositeByteBuf when using SslHandler
Motivation:

SslHandler.wrap(...) does a poor job when handling CompositeByteBuf as it always call ByteBuf.nioBuffer() which will do a memory copy when a CompositeByteBuf is used that is backed by multiple ByteBuf.

Modifications:

- Use SslEngine.wrap(ByteBuffer[]...) to allow wrap CompositeByteBuf in an efficient manner
- Reduce object allocation in unwrapNonAppData(...)

Result:

Performance improvement when a CompositeByteBuf is written and the SslHandler is in the ChannelPipeline.
2014-12-22 12:15:07 +01:00
Norman Maurer
699e6e3b02 Fix memory leak in OpenSslEngine
Motivation:

When a remote peer did open a connection and only do the handshake without sending any data and then directly close the connection we did not call shutdown() in the OpenSslEngine. This leads to a native memory leak. Beside this it also was not fireed when a OpenSslEngine was created but never used.

Modifications:

- Make sure shutdown() is called in all cases when closeInbound() is called
- Call shutdown() also in the finalize() method to ensure we release native memory when the OpenSslEngine is GC'ed

Result:

No more memory leak when using OpenSslEngine
2014-12-21 09:27:49 +01:00
Trustin Lee
e72b2235fb Make sure to notify handshake success even if SSLEngine is closed
Related:

e9685ea45a

Motivation:

SslHandler.unwrap() does not evaluate the handshake status of
SSLEngine.unwrap() when the status of SSLEngine.unwrap() is CLOSED.

It is not correct because the status does not reflect the state of the
handshake currently in progress, accoding to the API documentation of
SSLEngineResult.Status.

Also, sslCloseFuture can be notified earlier than handshake notification
because we call sslCloseFuture.trySuccess() before evaluating handshake
status.

Modifications:

- Notify sslCloseFuture after the unwrap loop is finished
- Add more assertions to SocketSslEchoTest

Result:

Potentially fix the regression caused by:
- e9685ea45a
2014-12-12 11:55:27 +09:00
Trustin Lee
d5a24d4f6c Make SslHandler work when autoRead is turned off
Related: #2958

Motivation:

SslHandler currently does not issue a read() request when it is
handshaking. It makes a connection with autoRead off stall, because a
user's read() request can be used to read the handshake response which
is invisible to the user.

Modifications:

- SslHandler now issues a read() request when:
  - the current handshake is in progress and channelReadComplete() is
    invoked
  - the current handshake is complete and a user issued a read() request
    during handshake
- Rename flushedBeforeHandshakeDone to flushedBeforeHandshake for
  consistency with the new variable 'readDuringHandshake'

Result:

SslHandler should work regardless whether autoRead is on or off.
2014-12-11 17:57:28 +09:00
Trustin Lee
1dc1831abf Add SslHandler.renegotiate()
Related: #3125

Motivation:

We did not expose a way to initiate TLS renegotiation and to get
notified when the renegotiation is done.

Modifications:

- Add SslHandler.renegotiate() so that a user can initiate TLS
  renegotiation and get the future that's notified on completion
- Make SslHandler.handshakeFuture() return the future for the most
  recent handshake so that a user can get the future of the last
  renegotiation
- Add the test for renegotiation to SocketSslEchoTest

Result:

Both client-initiated and server-initiated renegotiations are now
supported properly.
2014-12-10 18:59:50 +09:00
Trustin Lee
9ff234abed Call ctx.flush() at least once in ChunkedWriteHandler.flush()
Related: #3219

Motivation:

ChunkedWriteHandler.flush() does not call ctx.flush() when channel is
not writable. This can be a problem when other handler / non-Netty
thread writes messages simultaneously, because
ChunkedWriteHandler.flush() might have no chance to observe
channel.isWritable() returns true and thus the channel is never flushed.

Modifications:

- Ensure that ChunkedWriteHandler.flush() calls ctx.flush() at least
  once.

Result:

A stall connection issue, that occurs when certain combination of
handlers exist in a pipeline, has been fixed. (e.g. SslHandler and
ChunkedWriteHandler)
2014-12-09 18:17:46 +09:00
Trustin Lee
bf58f871c3 Overall clean-up of the initial SniHandler/DomainNameMapping work
- Parameterize DomainNameMapping to make it useful for other use cases
  than just mapping to SslContext
- Move DomainNameMapping to io.netty.util
- Clean-up the API documentation
- Make SniHandler.hostname and sslContext volatile because they can be
  accessed by non-I/O threads
2014-12-04 18:23:07 +09:00
Trustin Lee
96d596802b Fix dependency issues with hamcrest
Motivation:

We use 3 (!) libraries to build mock objects - easymock, mockito, jmock.
Mockito and jMock pulls in the different versions of Hamcrest, and it
conflicts with the version pulled by jUnit.

Modifications:

- Replace mockito-all with mockito-core to avoid pulling in outdated
  jUnit and Hamcrest
- Exclude junit-dep when pulling in jmock-junit4, because it pulls an
  outdated Hamcrest version
- Pull in the hamcrest-library version used by jUnit explicitly

Result:

No more dependency hell that results in NoSuchMethodError during the
tests
2014-12-04 17:59:15 +09:00
Sun Ning
8f77c80795 Added support for SSL Server Name Indication.
Motivation:

When we need to host multiple server name with a single IP, it requires
the server to support Server Name Indication extension to serve clients
with proper certificate. So the SniHandler will host multiple
SslContext(s) and append SslHandler for requested hostname.

Modification:

* Added SniHandler to host multiple certifications in a single server
* Test case

Result:

User could use SniHandler to host multiple certifcates at a time.
It's server-side only.
2014-12-03 11:03:15 +01:00
Ronald Chen
e1273147fa replaced broken &lt with < and same for gt 2014-11-29 19:33:50 +01:00
Graham Edgecombe
d33a80da26 Use Triple DES in JdkSslContext cipher suite list.
Motivation:

JdkSslContext used SSL_RSA_WITH_DES_CBC_SHA in its cipher suite list.
OpenSslServerContext used DES-CBC3-SHA in the same place in its cipher suite
list, which is equivalent to SSL_RSA_WITH_3DES_EDE_CBC_SHA.

This means the lists were out of sync. Furthermore, using
SSL_RSA_WITH_DES_CBC_SHA is not desirable as it uses DES, a weak cipher. Triple
DES should be used instead.

Modifications:

Replace SSL_RSA_WITH_DES_CBC_SHA with SSL_RSA_WITH_3DES_EDE_CBC_SHA in
JdkSslContext.

Result:

The JdkSslContext and OpenSslServerContext cipher suite lists are now in sync.
Triple DES is used instead of DES, which is stronger.
2014-11-27 08:15:34 +01:00
Trustin Lee
88aa9e7c4a Remove or de-prioritize RC4 from default cipher suites
Motivation:

RC4 is not a recommended cipher suite anymore, as the recent research
reveals, such as:

- http://www.isg.rhul.ac.uk/tls/

Modifications:

- Remove most RC4 cipher suites from the default cipher suites
- For backward compatibility, leave RC4-SHA, while de-prioritizing it

Result:

Potentially safer default
2014-11-25 17:17:20 +09:00
Idel Pivnitskiy
35db3c6710 Small performance improvements
Motivation:

Found performance issues via FindBugs and PMD.

Modifications:

- Removed unnecessary boxing/unboxing operations in DefaultTextHeaders.convertToInt(CharSequence) and DefaultTextHeaders.convertToLong(CharSequence). A boxed primitive is created from a string, just to extract the unboxed primitive value.
- Added a static modifier for DefaultHttp2Connection.ParentChangedEvent class. This class is an inner class, but does not use its embedded reference to the object which created it. This reference makes the instances of the class larger, and may keep the reference to the creator object alive longer than necessary.
- Added a static compiled Pattern to avoid compile it each time it is used when we need to replace some part of authority.
- Improved using of StringBuilders.

Result:

Performance improvements.
2014-11-20 00:10:06 -05:00
Trustin Lee
f2678a31ff Add ApplicationProtocolConfig.DISABLED
Motivation:

When ALPN/NPN is disabled, a user has to instantiate a new
ApplicationProtocolConfig with meaningless parameters.

Modifications:

- Add ApplicationProtocolConfig.DISABLED, the singleton instance
- Reject the constructor calls with Protocol.NONE, which doesn't make
  much sense because a user should use DISABLED instead.

Result:

More user-friendly API when ALPN/NPN is not needed by a user.
2014-10-31 14:09:46 +09:00
Trustin Lee
06217aefb7 Add back the removed deprecated methods in SslContext
Motivation:

Previous backport removed the old methods and constructors. They should
not be removed in 4.x but just deprecated in favor of the new methods
and constructors.

Modifications:

Add back the removed methods and constructors in SslContext and its
subtypes for backward compatibility.

Result:

Backward compatibility issues fixed.
2014-10-31 13:53:31 +09:00
Trustin Lee
16fb44cf97 Code clean-up
- Fix the inspector warnings
- Fix the infinite recursion in SslContext.newClientContext()
- Fix Javadoc errors
2014-10-31 13:00:05 +09:00
Scott Mitchell
04f77b76f8 Backport ALPN and Mutual Auth SSL
Motivation:

Improvements were made on the main line to support ALPN and mutual
authentication for TLS. These should be backported.

Modifications:

- Backport commits from the master branch
  - f8af84d599
  - e74c8edba3

Result:

Support for ALPN and mutual authentication.
2014-10-31 12:52:26 +09:00
Scott Mitchell
746c8cab32 SslHander wrap conditional direct buffer allocation
Motivation:
The SslHandler currently forces the use of a direct buffer for the input to the SSLEngine.wrap(..) operation. This allocation may not always be desired and should be conditionally done.

Modifications:
- Use the pre-existing wantsDirectBuffer variable as the condition to do the conversion.

Result:
- An allocation of a direct byte buffer and a copy of data is now not required for every SslHandler wrap operation.
2014-10-30 10:10:30 +01:00
Scott Mitchell
06ea226a28 SslHandler wrap memory leak
Motivation:
The SslHandler wrap method requires that a direct buffer be passed to the SSLEngine.wrap() call. If the ByteBuf parameter does not have an underlying direct buffer then one is allocated in this method, but it is not released.

Modifications:
- Release the direct ByteBuffer only accessible in the scope of SslHandler.wrap

Result:
Memory leak in SslHandler.wrap is fixed.
2014-10-28 06:12:45 +01:00
Trustin Lee
a1af35313c Disable SSLv3 to avoid POODLE vulnerability
Related: #3031

Motivation:

The only way to protect ourselves from POODLE vulnerability in Java for
now is to disable SSLv3.

- http://en.wikipedia.org/wiki/POODLE
- https://blogs.oracle.com/security/entry/information_about_ssl_poodle_vulnerability

Modifivation:

Disable SSLv3 in SslContext implementations

Result:

Prevent POODLE vulnerability when a user used SslContext with the
default configuration
2014-10-21 14:00:43 +09:00
kerr
b828e823ef Change the operator order of TrafficCounter to calculate the throughput to get the correct result
Motivation:
Currently the last read/write throughput is calculated by first division,this will be 0 if the last read/write bytes < interval,change the order will get the correct result

Modifications:
Change the operator order from first do division to multiplication

Result:
Get the correct result instead of 0 when bytes are smaller than interval
2014-10-01 06:37:36 +02:00
Frederic Bregier
a25c585f39 Fix overriden method not called in TrafficShaping
Motivation:
handlerAdded and handlerRemoved were overriden but super was never
called, while it should.
Also add one missing information in the toString method.

Modifications:
Add the super corresponding call, and add checkInterval to the
toString() method

Result;
super method calls are correctly passed to the super implementation
part.
2014-09-20 20:42:49 +02:00
Wolfgang Profer
57f48e0ec8 Fixed FingerprintTrustManagerFactory constructor
Motivation:

When constructing a FingerprintTrustManagerFactory from an Iterable of Strings, the fingerprints were correctly parsed but never added to the result array. The constructed FingerprintTrustManagerFactory consequently fails to validate any certificate.

Modifications:

I added a line to add each converted SHA-1 certificate fingerprint to the result array which then gets passed on to the next constructor.

Result:

Certificate fingerprints passed to the constructor are now correctly added to the array of valid fingerprints. The resulting FingerprintTrustManagerFactory object correctly validates certificates against the list of specified fingerprints.
2014-09-19 19:48:58 +02:00
Brad Fritz
f7616d22eb Correct javadoc typo in IdleStateHandler example code 2014-09-10 20:55:39 +02:00
Jakob Buchgraber
b285994e10 Support IPv4 default route in ipfilter.
Motivation:

In GitHub issue #2767 a bug was reported that the IPv4
default route leads to the ipfilter package denying
instead of accepting all addresses.

While the issue was reported for Netty 3.9, this bug
also applies to Netty 4 and higher.

Modifications:

When computing the subnet address from the CIDR prefix,
correctly handle the case where the prefix is set to zero.

Result:

Ipfilter accepts all addresses when passed the
IPv4 default route.
2014-08-17 14:32:27 +02:00
Trustin Lee
b5f61d0de5 [maven-release-plugin] prepare for next development iteration 2014-08-16 03:27:42 +09:00
Trustin Lee
76ac3b21a5 [maven-release-plugin] prepare release netty-4.1.0.Beta3 2014-08-16 03:27:37 +09:00
Trustin Lee
b3c1904cc9 [maven-release-plugin] prepare for next development iteration 2014-08-15 09:31:03 +09:00
Trustin Lee
e013b2400f [maven-release-plugin] prepare release netty-4.1.0.Beta2 2014-08-15 09:30:59 +09:00
plucury
ca29be5e77 Allow ChunkedInput to provide the progress of its transfer
Related issue: #2741 and #2151

Motivation:

There is no way for ChunkedWriteHandler to know the progress of the
transfer of a ChannelInput. Therefore, ChannelProgressiveFutureListener
cannot get exact information about the progress of the transfer.

If you add a few methods that optionally provides the transfer progress
to ChannelInput, it becomes possible for ChunkedWriteHandler to notify
ChannelProgressiveFutureListeners.

If the input has no definite length, we can still use the progress so
far, and consider the length of the input as 'undefined'.

Modifications:

- Add ChunkedInput.progress() and ChunkedInput.length()
- Modify ChunkedWriteHandler to use progress() and length() to notify
  the transfer progress

Result:

ChunkedWriteHandler now notifies ChannelProgressiveFutureListener.
2014-08-14 16:49:09 -07:00
fbregier
bc1379d19d [#2721] Improve Traffic Shaping handler
Motivation:
Currently Traffic Shaping is using 1 timer only and could lead to
"partial" wrong bandwidth computation when "short" time occurs between
adding used bytes and when the TrafficCounter updates itself and finally
when the traffic is computed.
Indeed, the TrafficCounter is updated every x delay and it is at the
same time saved into "lastXxxxBytes" and set to 0. Therefore, when one
request the counter, it first updates the TrafficCounter with the added
used bytes. If this value is set just before the TrafficCounter is
updated, then the bandwidth computation will use the TrafficCounter with
a "0" value (this value being reset once the delay occurs). Therefore,
the traffic shaping computation is wrong in rare cases.

Secondly the traffic shapping should avoid if possible the "Timeout"
effect by not stopping reading or writing more than a maxTime, this
maxTime being less than the TimeOut limit.

Thirdly the traffic shapping in read had an issue since the readOp
was not set but should, turning in no read blocking from socket
point of view.

Modifications:
The TrafficCounter has 2 new methods that compute the time to wait
according to read or write) using in priority the currentXxxxBytes (as
before), but could used (if current is at 0) the lastXxxxxBytes, and
therefore having more chance to take into account the real traffic.

Moreover the Handler could change the default "max time to wait", which
is by default set to half of "standard" Time Out (30s:2 = 15s).

Finally we add the setAutoRead(boolean) accordingly to the situation,
as proposed in #2696 (this pull request is in error for unknown reason).

Result:
The Traffic Shaping is better take into account (no 0 value when it
shouldn't) and it tries to not block traffic more than Time Out event.

Moreover the read is really stopped from socket point of view.

This version is similar to #2388 and #2450.
This version is for V4.1, and includes the #2696 pull request
to ease the merge process.
It is compatible with master too.

Including also #2748

The test minimizes time check by reducing to 66ms steps (55s).
2014-08-13 01:40:32 +02:00
Norman Maurer
02e7e53cbb [#2752] Add PendingWriteQueue for queue up writes
Motivation:

Sometimes ChannelHandler need to queue writes to some point and then process these. We currently have no datastructure for this so the user will use an Queue or something like this. The problem is with this Channel.isWritable() will not work as expected and so the user risk to write to fast. That's exactly what happened in our SslHandler. For this purpose we need to add a special datastructure which will also take care of update the Channel and so be sure that Channel.isWritable() works as expected.

Modifications:

- Add PendingWriteQueue which can be used for this purpose
- Make use of PendingWriteQueue in SslHandler

Result:

It is now possible to queue writes in a ChannelHandler and still have Channel.isWritable() working as expected. This also fixes #2752.
2014-08-12 06:38:22 +02:00
Trustin Lee
8263a62014 Clean-up d9cccccbb3
- Revert irrelevant formatting changes
- Rename resource files
  - Add .pem
  - Remove 'netty' from names
2014-08-04 10:54:05 -07:00
Peter Schulz
20dffa8ee6 [#2718] Added private key decryption to JDK SSL server context.
Motivation:

Currently it is not possible to load an encrypted private key when
creating a JDK based SSL server context.

Modifications:

- Added static method to JdkSslServerContext which handles key spec generation for (encrypted) private keys and make use of it.
-Added tests for creating a SSL server context based on a (encrypted)
private key.

Result:

It is now possible to create a JDK based SSL server context with an
encrypted (password protected) private key.
2014-08-04 14:19:40 +02:00
Norman Maurer
c85319213a [#2675] Replace synchronization performed on util.concurrent instance in TrafficCounter
Motivation:

Message from FindBugs:
This method performs synchronization an object that is an instance of a class from the java.util.concurrent package (or its subclasses). Instances of these classes have their own concurrency control mechanisms that are orthogonal to the synchronization provided by the Java keyword synchronized. For example, synchronizing on an AtomicBoolean will not prevent other threads from modifying the AtomicBoolean.
Such code may be correct, but should be carefully reviewed and documented, and may confuse people who have to maintain the code at a later date.

Modification:

Use synchronized(this)

Result:

Less confusing code
2014-07-21 08:23:24 +02:00
Idel Pivnitskiy
b83df4c6b3 Fix NPE problems
Motivation:

Now Netty has a few problems with null values.

Modifications:

- Check HAProxyProxiedProtocol in HAProxyMessage constructor and throw NPE if it is null.
If HAProxyProxiedProtocol is null we will set AddressFamily as null. So we will get NPE inside checkAddress(String, AddressFamily) and it won't be easy to understand why addrFamily is null.
- Check File in DiskFileUpload.toString().
If File is null we will get NPE when calling toString() method.
- Check Result<String> in MqttDecoder.decodeConnectionPayload(...).
If !mqttConnectVariableHeader.isWillFlag() || !mqttConnectVariableHeader.hasUserName() || !mqttConnectVariableHeader.hasPassword() we will get NPE when we will try to create new instance of MqttConnectPayload.
- Check Unsafe before calling unsafe.getClass() in PlatformDependent0 static block.
- Removed unnecessary null check in WebSocket08FrameEncoder.encode(...).
Because msg.content() can not return null.
- Removed unnecessary null check in DefaultStompFrame(StompCommand) constructor.
Because we have this check in the super class.
- Removed unnecessary null checks in ConcurrentHashMapV8.removeTreeNode(TreeNode<K,V>).
- Removed unnecessary null check in OioDatagramChannel.doReadMessages(List<Object>).
Because tmpPacket.getSocketAddress() always returns new SocketAddress instance.
- Removed unnecessary null check in OioServerSocketChannel.doReadMessages(List<Object>).
Because socket.accept() always returns new Socket instance.
- Pass Unpooled.buffer(0) instead of null inside CloseWebSocketFrame(boolean, int) constructor.
If we will pass null we will get NPE in super class constructor.
- Added throw new IllegalStateException in GlobalEventExecutor.awaitInactivity(long, TimeUnit) if it will be called before GlobalEventExecutor.execute(Runnable).
Because now we will get NPE. IllegalStateException will be better in this case.
- Fixed null check in OpenSslServerContext.setTicketKeys(byte[]).
Now we throw new NPE if byte[] is not null.

Result:

Added new null checks when it is necessary, removed unnecessary null checks and fixed some NPE problems.
2014-07-20 12:55:22 +02:00
Trustin Lee
e167b02d52 [maven-release-plugin] prepare for next development iteration 2014-07-04 17:26:02 +09:00
Trustin Lee
ba50cb829b [maven-release-plugin] prepare release netty-4.1.0.Beta1 2014-07-04 17:25:54 +09:00
Trustin Lee
787663a644 [maven-release-plugin] rollback the release of netty-4.1.0.Beta1 2014-07-04 17:11:14 +09:00
Trustin Lee
83eae705e1 [maven-release-plugin] prepare release netty-4.1.0.Beta1 2014-07-04 17:02:17 +09:00
Norman Maurer
217fb0de05 [#2618] Introduce ChannelPromise.unvoid() and ChannelFuture.isVoid()
Motivation:

There is no way for a ChannelHandler to check if the passed in ChannelPromise for a write(...) call is a VoidChannelPromise. This is a problem as some handlers need to add listeners to the ChannelPromise which is not possible in the case of a VoidChannelPromise.

Modification:

- Introduce ChannelFuture.isVoid() which will return true if it is not possible to add listeners or wait on the result.
- Add ChannelPromise.unvoid() which allows to create a ChannelFuture out of a void ChannelFuture which supports all the operations.

Result:

It's now easy to write ChannelHandler implementations which also works when a void ChannelPromise is used.
2014-07-03 14:17:12 +02:00
Trustin Lee
d0912f2709 Fix most inspector warnings
Motivation:

It's good to minimize potentially broken windows.

Modifications:

Fix most inspector warnings from our profile
Update IntObjectHashMap

Result:

Cleaner code
2014-07-02 19:55:07 +09:00
Trustin Lee
085a61a310 Refactor FastThreadLocal to simplify TLV management
Motivation:

When Netty runs in a managed environment such as web application server,
Netty needs to provide an explicit way to remove the thread-local
variables it created to prevent class loader leaks.

FastThreadLocal uses different execution paths for storing a
thread-local variable depending on the type of the current thread.
It increases the complexity of thread-local removal.

Modifications:

- Moved FastThreadLocal and FastThreadLocalThread out of the internal
  package so that a user can use it.
- FastThreadLocal now keeps track of all thread local variables it has
  initialized, and calling FastThreadLocal.removeAll() will remove all
  thread-local variables of the caller thread.
- Added FastThreadLocal.size() for diagnostics and tests
- Introduce InternalThreadLocalMap which is a mixture of hard-wired
  thread local variable fields and extensible indexed variables
- FastThreadLocal now uses InternalThreadLocalMap to implement a
  thread-local variable.
- Added ThreadDeathWatcher.unwatch() so that PooledByteBufAllocator
  tells it to stop watching when its thread-local cache has been freed
  by FastThreadLocal.removeAll().
- Added FastThreadLocalTest to ensure that removeAll() works
- Added microbenchmark for FastThreadLocal and JDK ThreadLocal
- Upgraded to JMH 0.9

Result:

- A user can remove all thread-local variables Netty created, as long as
  he or she did not exit from the current thread. (Note that there's no
  way to remove a thread-local variable from outside of the thread.)
- FastThreadLocal exposes more useful operations such as isSet() because
  we always implement a thread local variable via InternalThreadLocalMap
  instead of falling back to JDK ThreadLocal.
- FastThreadLocalBenchmark shows that this change improves the
  performance of FastThreadLocal even more.
2014-06-19 21:13:55 +09:00
belliottsmith
2a2a21ec59 Introduce FastThreadLocal which uses an EnumMap and a predefined fixed set of possible thread locals
Motivation:
Provide a faster ThreadLocal implementation

Modification:
Add a "FastThreadLocal" which uses an EnumMap and a predefined fixed set of possible thread locals (all of the static instances created by netty) that is around 10-20% faster than standard ThreadLocal in my benchmarks (and can be seen having an effect in the direct PooledByteBufAllocator benchmark that uses the DEFAULT ByteBufAllocator which uses this FastThreadLocal, as opposed to normal instantiations that do not, and in the new RecyclableArrayList benchmark);

Result:
Improved performance
2014-06-13 10:56:18 +02:00
DhanaRaj Durairaj
eb27cd279c [#2494] Fix data curruption by ChannelTrafficShapingHandler
Motivation:
ChannelTrafficShapingHandler may corrupt inbound data stream by
scheduling the fireChannelRead event.

Modification:
Always call fireChannelRead(...) and only suspend reads after it

Result:
No more data corruption
2014-06-03 08:38:05 +02:00
Trustin Lee
2f8c13e85a Fix NPE 2014-05-22 10:29:24 +09:00
Trustin Lee
5ce410c69e Future compatibility with TLS ALPN
Motivation:

According to TLS ALPN draft-05, a client sends the list of the supported
protocols and a server responds with the selected protocol, which is
different from NPN.  Therefore, ApplicationProtocolSelector won't work
with ALPN

Modifications:

- Use Iterable<String> to list the supported protocols on the client
  side, rather than using ApplicationProtocolSelector
- Remove ApplicationProtocolSelector

Result:

Future compatibility with TLS ALPN
2014-05-22 10:03:02 +09:00
Trustin Lee
27b67e981e Fix NPE in OpenSslEngine 2014-05-21 20:02:40 +09:00
Trustin Lee
ac968fbf7b Escape a colon in protocol names 2014-05-21 17:45:18 +09:00
Trustin Lee
861ed1e7ad Add unified NextProtoNego extension support to SslContext
Motivation:

- OpenSslEngine and JDK SSLEngine (+ Jetty NPN) have different APIs to
  support NextProtoNego extension.
  - It is impossible to configure NPN with SslContext when the provider
    type is JDK.

Modification:

- Implement NextProtoNego extension by overriding the behavior of
  SSLSession.getProtocol() for both OpenSSLEngine and JDK SSLEngine.
  - SSLEngine.getProtocol() returns a string delimited by a colon (':')
    where the first component is the transport protosol (e.g. TLSv1.2)
    and the second component is the name of the application protocol
- Remove the direct reference of Jetty NPN classes from the examples
- Add SslContext.newApplicationProtocolSelector

Result:

- A user can now use both JDK SSLEngine and OpenSslEngine for NPN-based
  protocols such as HTTP2 and SPDY
2014-05-21 17:24:52 +09:00
Trustin Lee
4882377c27 Work around the JVM crash that occurs when cipher suite uses GCM
Motivation:

For an unknown reason, JVM of JDK8 crashes intermittently when
SslHandler feeds a direct buffer to SSLEngine.unwrap() *and* the current
cipher suite has GCM (Galois/Counter Mode) enabled.

Modifications:

Convert the inbound network buffer to a heap buffer when the current
cipher suite is using GCM.

Result:

JVM does not crash anymore.
2014-05-19 11:47:20 +09:00
Trustin Lee
ae61b12b9e Reduce memory usage of SslHandler when OpenSslEngine is in use
Motivation:

JDK's SSLEngine.wrap() requires the output buffer to be always as large as MAX_ENCRYPTED_PACKET_LENGTH even if the input buffer contains small number of bytes.  Our OpenSslEngine implementation does not have such wasteful behaviot.

Modifications:

If the current SSLEngine is OpenSslEngine, allocate as much as only needed.

Result:

Less peak memory usage.
2014-05-18 05:10:41 +09:00
Trustin Lee
28c390d86d Fix buffer leaks during PEM to KeyStore conversion 2014-05-18 04:29:50 +09:00
Trustin Lee
167a685a5f Fix JDK 8 compatibility issue with OpenJdkSelfSignedCertGenerator
- X509CertInfo.setSubject/setIssuer() requires X500Name instead of
  CertificateSubjectName/CertificateIssuerName.
2014-05-18 03:47:55 +09:00
Trustin Lee
9125060752 Optimize SslHandler in an OpenSslEngine-friendly way
Motivation:

Previous fix for the OpenSslEngine compatibility issue (#2216 and
18b0e95659) was to feed SSL records one by
one to OpenSslEngine.unwrap().  It is not optimal because it will result
in more JNI calls.

Modifications:

- Do not feed SSL records one by one.
- Feed as many records as possible up to MAX_ENCRYPTED_PACKET_LENGTH
- Deduplicate MAX_ENCRYPTED_PACKET_LENGTH definitions

Result:

- No allocation of intemediary arrays
- Reduced number of calls to SSLEngine and thus its underlying JNI calls
- A tad bit increase in throughput, probably reverting the tiny drop
  caused by 18b0e95659
2014-05-18 03:33:00 +09:00
Trustin Lee
b6c0c0c95f Add an OpenSslEngine and the universal API for enabling SSL
Motivation:

Some users already use an SSLEngine implementation in finagle-native. It
wraps OpenSSL to get higher SSL performance.  However, to take advantage
of it, finagle-native must be compiled manually, and it means we cannot
pull it in as a dependency and thus we cannot test our SslHandler
against the OpenSSL-based SSLEngine.  For an instance, we had #2216.

Because the construction procedures of JDK SSLEngine and OpenSslEngine
are very different from each other, we also need to provide a universal
way to enable SSL in a Netty application.

Modifications:

- Pull netty-tcnative in as an optional dependency.
  http://netty.io/wiki/forked-tomcat-native.html
- Backport NativeLibraryLoader from 4.0
- Move OpenSSL-based SSLEngine implementation into our code base.
  - Copied from finagle-native; originally written by @jpinner et al.
  - Overall cleanup by @trustin.
- Run all SslHandler tests with both default SSLEngine and OpenSslEngine
- Add a unified API for creating an SSL context
  - SslContext allows you to create a new SSLEngine or a new SslHandler
    with your PKCS#8 key and X.509 certificate chain.
  - Add JdkSslContext and its subclasses
  - Add OpenSslServerContext
- Add ApplicationProtocolSelector to ensure the future support for NPN
  (NextProtoNego) and ALPN (Application Layer Protocol Negotiation) on
  the client-side.
- Add SimpleTrustManagerFactory to help a user write a
  TrustManagerFactory easily, which should be useful for those who need
  to write an alternative verification mechanism. For example, we can
  use it to implement an unsafe TrustManagerFactory that accepts
  self-signed certificates for testing purposes.
- Add InsecureTrustManagerFactory and FingerprintTrustManager for quick
  and dirty testing
- Add SelfSignedCertificate class which generates a self-signed X.509
  certificate very easily.
- Update all our examples to use SslContext.newClient/ServerContext()
- SslHandler now logs the chosen cipher suite when handshake is
  finished.

Result:

- Cleaner unified API for configuring an SSL client and an SSL server
  regardless of its internal implementation.
- When native libraries are available, OpenSSL-based SSLEngine
  implementation is selected automatically to take advantage of its
  performance benefit.
- Examples take advantage of this modification and thus are cleaner.
2014-05-18 02:54:06 +09:00
Trustin Lee
2a6ed67efc Preparation for porting OpenSSL support in 3.10
- Add licenses and dependencies
2014-05-17 20:01:30 +09:00