CCNx (Content Centric Networking) is an open source project exploring the next step in networking, based on one fundamental architectural change: replacing named hosts with named content as the primary abstraction.
CCNx was launched with ideas from PARC's Content-Centric Networking (CCN) research program.
The PARC CCN architecture takes content as a primitive and decouples location from identity, security, and access, with no concept of host/machine at the lowest level.
Only Unix-like platforms are currently supported. CCNx code is tested
on Mac OS X, Ubuntu Linux, Solaris, and FreeBSD.
What's New in This Release: [ read full changelog ]
· NOTE: ccnChat will not inter-operate with older versions due to fix for #100030.
· Changes to crypto implementation for compatibility with older versions of BouncyCastle and configurations with varied crypto support. Also improved handling of crypto providers.
· Added stopall argument to ccn_repo command to stop all running repos on machine.
· Turned off ccnd message about heartbeats by default (use CCND_DEBUG=128 to get these messages back).
· Fixed ccnput to allow name components after the version marker, generate FinalBlockID where appropriate.
· Added support for file segmentation convention to ccncatchunks2.
· Centralized timeout definitions in Java library to SystemConfiguration.
· Improved VLC plugin, incl. using name "ccnx", supporting versioned files.
· Small improvements to ContentExplorer such as option to save a file to filesystem.
· Enlarged time scale for C test_scale to reduce chance of spurious failure.
· Added scripts for running experiments with content distribution.
· Handle null return from readLine for binary decoding in Java library (#100025).
· Improvements to CCNFilterListener support in Java library (#100027).
· Improvements to repo performance (#100017)
Issues Resolved:
· Bug #100009 Repository makes duplicate data requests.
· Bug #100014 Update code to use IANA allocated port.
· Replaced temporary port number with registered ccnx port number 9695. See http://www.iana.org/assignments/port-numbers
· Bug #100015 ccndc only processes last command in config file.
· Bug #100016 Repo should not process each piece of content as a potential policy update.
· Bug #100019 Incorrect marker byte used for enumeration, repo protocols.
· Bug #100021 Repo should have a simple way to specify prefix on startup.
· Bug #100023 c tests minsuffix and contenthash failing.
· Bug #100024 BasicKeyManager passes null to generateConfigurationException.
· Bug #100030 ccnChat/default network string shouldn't use Java serialization. Converted Java CCNStringObject to use UTF-8 string encoding.
· Bug #100039 ccn.h should have an API version identifier.
· Introduce Java ContentEncodingException and use IOException rather than using XMLStreamException widely.
· Bug fixes and additional tests for AccessControlManager.
· Bug fixes for name enumeration.
· Improvement of internal state handling in BloomFilter.java.
· Adjustments to logging level of some Java tests.
· Reorganization of some Java tests to help track down intermittent failures.
· ContentExplorer checks for presence of VLC plugin.
· Bug fixes for Java test CCNNetworkObjectTestRepo.
· Build fixes for Mac OS X 10.6
· Added optimization for Java network objects based on immutable values.
· Fixed broken parameter check in ccndc.
· Merged specifications of infinite timeout values for Java API.
· Improvements to Java CCNFlowControl and creation of simple in-memory server to serve keys.
· Improved exception handling for Java network objects.
· Cleaned up XML handling for repo policy files.
· Added new support for local repo write unit tests.
· Eliminated timersub from signbenchtest.c for portability.
· Improved interest reexpression in Java library.
· Minor refinements to Java log messages.
· Revisions to Java documentation.
· Minor improvements to C library.
