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NFD/docs/RELEASE_NOTES.rst
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Alexander Afanasyev 7c10b3bdc8 docs: Prepare release notes for version 0.3.0 
Change-Id: If0ae14cbf97ee3d9b92a3467d0b6592c10e66698
Refs: #2462, #2352, #2209
2015-02-02 19:21:57 -08:00

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.. _NFD Release Notes:
NFD Release Notes
=================
NFD version 0.3.0 (changes since version 0.2.0)
-----------------------------------------------
Release date: February 2, 2015
New features:
^^^^^^^^^^^^^
- **Build**
+ The code now requires C++11. The minimum supported gcc version is 4.6, as earlier versions
do not have proper support for C++11 features.
- **Faces**
+ Enable detection of WebSocket connection failures using ping/pong messages (:issue:`1903`)
+ In EthernetFace:
* Avoid putting the NIC in promiscuous mode if possible (:issue:`1278`)
* Report packets dropped by the kernel if debug is enabled (:issue:`2441`)
* Integrate NDNLP fragmentation (:issue:`1209`)
- **Forwarding**
+ Strategy versioning (:issue:`1893`)
+ New Dead Nonce List table to supplement PIT for loop detection (:issue:`1953`)
+ Abstract retransmission suppression logic (:issue:`2377`)
+ New forwarding strategy for access router (:issue:`1999`)
- **Management**
+ Add config file-based strategy selection (:issue:`2053`)
The sample config file now includes strategy selection for ``/``, ``/localhost``,
``/localhost/nfd``, and ``/ndn/broadcast`` namespaces as follows:
::
tables
{
...
strategy_choice
{
/ /localhost/nfd/strategy/best-route
/localhost /localhost/nfd/strategy/broadcast
/localhost/nfd /localhost/nfd/strategy/best-route
/ndn/broadcast /localhost/nfd/strategy/broadcast
}
}
+ Implement Query Operation in FaceManager (:issue:`1993`)
+ FaceManager now responds with producer-generated NACK when query is invalid (:issue:`1993`)
+ Add functionality for automatic remote prefix registration (:issue:`2056`)
+ Only canonical FaceUri are allowed in faces/create commands (:issue:`1910`)
- **Tables**
+ StrategyInfoHost can now store multiple StrategyInfo of distinct types (:issue:`2240`)
+ Enable iteration over PIT and CS entries (:issue:`2339`)
+ Allow predicate to be specified in Measurements::findLongestPrefixMatch (:issue:`2314`)
+ Calculate the implicit digest of Data packets in CS only when necessary (:issue:`1706`)
- **Tools**
+ Publish ``/localhop/ndn-autoconf/routable-prefixes`` from ``ndn-autoconfig-server``
(:issue:`1954`)
+ Display detailed NFD software verion in ``nfd-status-http-server`` and ``nfd-status``
(:issue:`1916`)
+ ``nfdc`` now accepts FaceUri in all commands (:issue:`1995`)
+ Add daemon mode for ``ndn-autoconfig`` to re-run detection when connectivity changes
(:issue:`2417`)
- **Core**
+ New scheduler::ScopedEventId class to automatically handle scheduled event lifetime
(:issue:`2295`)
Updates and bug fixes:
^^^^^^^^^^^^^^^^^^^^^^
- **Documentation**
+ NFD Developer's guide has been updated to reflect changes in the codebase
+ Installation instruction updates
+ Update of config file instructions for disabling unix sockets (:issue:`2190`)
- **Core**
+ Use implementations moved to ndn-cxx library
+ Use Signal from ndn-cxx (:issue:`2272`, :issue:`2300`)
+ use ethernet::Address from ndn-cxx (:issue:`2142`)
+ Use MAX_NDN_PACKET_SIZE constant from ndn-cxx (:issue:`2099`)
+ Use DEFAULT_INTEREST_LIFETIME from ndn-cxx (:issue:`2202`)
+ Use FaceUri from ndn-cxx (:issue:`2143`)
+ Use DummyClientFace from ndn-cxx (:issue:`2186`)
+ Use ndn::dns from ndn-cxx (:issue:`2207`)
+ Move Network class implementation from ``tools/`` to ``core/``
+ Ignore non-Ethernet ``AF_LINK`` addresses when enumerating NICs on OSX and other BSD systems
+ Fix bug on not properly setting FreshnessPeriod inside SegmentPublisher (:issue:`2438`)
- **Faces**
+ Fix spurious assertion failure in StreamFace (:issue:`1856`)
+ Update websocketpp submodule (:issue:`1903`)
+ Replace FaceFlags with individual fields (:issue:`1992`)
+ Drop WebSocket message if the size is larger than maximum NDN packet size (:issue:`2081`)
+ Make EthernetFace more robust against errors (:issue:`1984`)
+ Prevent potential infinite loop in TcpFactory and UdpFactory (:issue:`2292`)
+ Prevent crashes when attempting to create a UdpFace over a half-working connection
(:issue:`2311`)
+ Support MTU larger than 1500 in EthernetFace (for jumbo frames) (:issue:`2305`)
+ Re-enable EthernetFace on OS X platform with boost >=1.57.0 (:issue:`1922`)
+ Fix ``ioctl()`` calls on platforms where libpcap uses ``/dev/bpf*`` (:issue:`2327`)
+ Fix overhead estimation in NDNLP slicer (:issue:`2317`)
+ Replace usage of deprecated EventEmitter with Signal in Face abstractions (:issue:`2300`)
+ Fix NDNLP PartialMessage cleanup scheduling (:issue:`2414`)
+ Remove unnecessary use of DNS resolver in (Udp|Tcp|WebSocket)Factory (:issue:`2422`)
- **Forwarding**
+ Updates related to NccStrategy
* Fix to prevent remembering of suboptimal upstreams (:issue:`1961`)
* Optimizing FwNccStrategy/FavorRespondingUpstream test case (:issue:`2037`)
* Proper detection for new PIT entry (:issue:`1971`)
* Use UnitTestTimeFixture in NCC test case (:issue:`2163`)
* Fix loop back to sole downstream (:issue:`1998`)
+ Updates related to BestRoute strategy
+ Redesign best-route v2 strategy test case (:issue:`2126`)
+ Fix clang compilation error in best-route v2 test case (:issue:`2179`)
+ Use UnitTestClock in BestRouteStrategy2 test (:issue:`2160`)
+ Allow strategies limited access to FaceTable (:issue:`2272`)
- **Tables**
+ Ensure that eviction of unsolicited Data is done in FIFO order (:issue:`2043`)
+ Simplify table implementations with C++11 features (:issue:`2100`)
+ Fix issue with Fib::removeNextHopFromAllEntries invalidating NameTree iterator
(:issue:`2177`)
+ Replace deprecated EventEmitter with Signal in FaceTable (:issue:`2272`)
+ Refactored implementation of ContentStore based on std::set (:issue:`2254`)
- **Management**
+ Allow omitted FaceId in faces/create command (:issue:`2031`)
+ Avoid deprecated ``ndn::nfd::Controller(Face&)`` constructor (:issue:`2039`)
+ Enable check of command length before accessing verb (:issue:`2151`)
+ Rename FaceEntry to Route (:issue:`2159`)
+ Insert RIB command prefixes into RIB (:issue:`2312`)
- **Tools**
+ Display face attribute fields instead of FaceFlags in ``nfd-status`` and
``nfd-status-http-server`` output (:issue:`1991`)
+ Fix ``nfd-status-http-server`` hanging when nfd-status output is >64k (:issue:`2121`)
+ Ensure that ``ndn-autoconfig`` canonizes FaceUri before sending commands to NFD
(:issue:`2387`)
+ Refactored ndn-autoconfig implementation (:issue:`2421`)
+ ndn-autoconfig will now register also ``/localhop/nfd`` prefix towards the hub (:issue:`2416`)
- **Tests**
+ Use UnitTestClock in Forwarder persistent loop test case (:issue:`2162`)
+ Use LimitedIo in FwForwarder/SimpleExchange test case (:issue:`2161`)
- **Build**
+ Fix build error with python3 (:issue:`1302`)
+ Embed CI build and test running script
+ Properly disable assertions in release builds (:issue:`2139`)
+ Embed setting of ``PKG_CONFIG_PATH`` variable to commonly used values (:issue:`2178`)
+ Add conditional compilation for NetworkInterface and PrivilegeHelper
+ Support tools with multiple translation units (:issue:`2344`)
Removals
^^^^^^^^
- Remove ``listen`` option from unix channel configuration (:issue:`2188`)
- Remove usage of deprecated ``MetaInfo::TYPE_*`` constants (:issue:`2128`)
- Eliminate MapValueIterator in favor of ``boost::adaptors::map_values``
****************************************************************************
NFD version 0.2.0 (changes since version 0.1.0)
-----------------------------------------------
Release date: August 25, 2014
- **Documentation**
+ `"NFD Developer's Guide" by NFD authors
<http://named-data.net/wp-content/uploads/2014/07/NFD-developer-guide.pdf>`_ that
explains NFD's internals including the overall design, major modules, their
implementation, and their interactions
+ New detailed instructions on how to enable auto-start of NFD using OSX ``launchd``
and Ubuntu's ``upstart`` (see `contrib/ folder
<https://github.com/named-data/NFD/tree/master/contrib>`_)
- **Core**
+ Add support for temporary privilege drop and elevation (:issue:`1370`)
+ Add support to reinitialize multicast Faces and (partially) reload config file
(:issue:`1584`)
+ Randomization routines are now uniform across all NFD modules (:issue:`1369`)
+ Enable use of new NDN naming conventions (:issue:`1837` and :issue:`1838`)
- **Faces**
+ `WebSocket <http://tools.ietf.org/html/rfc6455>`_ Face support (:issue:`1468`)
+ Fix Ethernet Face support on Linux with ``libpcap`` version >=1.5.0 (:issue:`1511`)
+ Fix to recognize IPv4-mapped IPv6 addresses in ``FaceUri`` (:issue:`1635`)
+ Fix to avoid multiple onFail events (:issue:`1497`)
+ Fix broken support of multicast UDP Faces on OSX (:issue:`1668`)
+ On Linux, path MTU discovery on unicast UDPv4 faces is now disabled (:issue:`1651`)
+ Added link layer byte counts in FaceCounters (:issue:`1729`)
+ Face IDs 0-255 are now reserved for internal NFD use (:issue:`1620`)
+ Serialized StreamFace::send(Interest|Data) operations using queue (:issue:`1777`)
- **Forwarding**
+ Outgoing Interest pipeline now allows strategies to request a fresh ``Nonce`` (e.g., when
the strategy needs to re-express the Interest) (:issue:`1596`)
+ Fix in the incoming Data pipeline to avoid sending packets to the incoming Face
(:issue:`1556`)
+ New ``RttEstimator`` class that implements the Mean-Deviation RTT estimator to be used in
forwarding strategies
+ Fix memory leak caused by not removing PIT entry when Interest matches CS (:issue:`1882`)
+ Fix spurious assertion in NCC strategy (:issue:`1853`)
- **Tables**
+ Fix in ContentStore to properly adjust internal structure when ``Cs::setLimit`` is called
(:issue:`1646`)
+ New option in configuration file to set an upper bound on ContentStore size (:issue:`1623`)
+ Fix to prevent infinite lifetime of Measurement entries (:issue:`1665`)
+ Introducing capacity limit in PIT NonceList (:issue:`1770`)
+ Fix memory leak in NameTree (:issue:`1803`)
+ Fix segfault during Fib::removeNextHopFromAllEntries (:issue:`1816`)
- **Management**
+ RibManager now fully support ``CHILD_INHERIT`` and ``CAPTURE`` flags (:issue:`1325`)
+ Fix in ``FaceManager`` to respond with canonical form of Face URI for Face creation command
(:issue:`1619`)
+ Fix to prevent creation of duplicate TCP/UDP Faces due to async calls (:issue:`1680`)
+ Fix to properly handle optional ExpirationPeriod in RibRegister command (:issue:`1772`)
+ Added functionality of publishing RIB status (RIB dataset) by RibManager (:issue:`1662`)
+ Fix issue of not properly canceling route expiration during processing of ``unregister``
command (:issue:`1902`)
+ Enable periodic clean up of route entries that refer to non-existing faces (:issue:`1875`)
- **Tools**
+ Extended functionality of ``nfd-status``
* ``-x`` to output in XML format, see :ref:`nfd-status xml schema`
* ``-c`` to retrieve channel status information (enabled by default)
* ``-s`` to retrieve configured strategy choice for NDN namespaces (enabled by default)
* Face status now includes reporting of Face flags (``local`` and ``on-demand``)
* On-demand UDP Faces now report remaining lifetime (``expirationPeriod``)
* ``-r`` to retrieve RIB information
+ Improved ``nfd-status-http-server``
* HTTP server now presents status as XSL-formatted XML page
* XML dataset and formatted page now include certificate name of the corresponding NFD
(:issue:`1807`)
+ Several fixes in ``ndn-autoconfig`` tool (:issue:`1595`)
+ Extended options in ``nfdc``:
* ``-e`` to set expiration time for registered routes
* ``-o`` to specify origin for registration and unregistration commands
+ Enable ``all-faces-prefix'' option in ``nfd-autoreg`` to register prefix for all face
(on-demand and non-on-demand) (:issue:`1861`)
+ Enable processing auto-registration in ``nfd-autoreg`` for faces that existed prior to
start of the tool (:issue:`1863`)
- **Build**
+ Enable support of precompiled headers for clang and gcc to speed up compilation
- `Other small fixes and extensions
<https://github.com/named-data/NFD/compare/NFD-0.1.0...master>`_
****************************************************************************
NFD version 0.1.0
-----------------
Release date: May 7, 2014
This is an incomplete list of features that are implemented in NFD version 0.1.0.
- **Packet Format**
+ `NDN-TLV <http://named-data.net/doc/ndn-tlv/>`_
+ LocalControlHeader, to allow apps to set outgoing face and learn incoming face.
- **Faces**
+ Unix stream socket
+ UDP unicast
+ UDP multicast
+ TCP
+ Ethernet, currently without fragmentation.
.. note::
Ethernet support will not work properly on Linux kernels with TPACKET_V3 flexible
buffer implementation (>= 3.2.0) and libpcap >= 1.5.0 (e.g., Ubuntu Linux 14.04).
Refer to `Issue 1551 <http://redmine.named-data.net/issues/1511>`_ for more
detail and implementation progress.
- **Management**
+ Use of signed Interests as commands, with authentication and authorization.
+ Face management
+ FIB management
+ Per-namespace strategy selection
+ NFD status publishing
+ Notification to authorized apps of internal events, including Face creation and destruction.
- **Tables and forwarding pipelines** support most Interest/Data processing, including
selectors.
- **RIB Management** that runs as a separate process, ``nrd``. It supports basic prefix
registration by applications, but no flags yet.
- **Strategies**
+ ``broadcast``
+ ``best-route``
+ ``ncc``: based on ccnx 0.7 for experimentation
+ ``client-control``: authorized application can directly control Interest forwarding
- **Name-based scoping**
+ ``/localhost``: communication only within localhost using "local" Faces
(UnixStreamFace, LocalTcpFace). NFD will strictly enforce this scope for Interests
and Data packets
+ ``/localhop``: one-hop communication (e.g., if at least one incoming or outgoing Face
in PIT entry is non-local, the Interest cannot be forwarded to any non-local Face)
- **Support configuration file**, which is in the Boost INFO format.
- **Applications**
+ Tools to discover hubs on NDN testbed.
+ peek/poke and traffic generators for testing and debugging.
+ ``nfdc``, a command-line tool to configure NFD.
+ ``nfd-status``, a command-line tool to query NFD status.
+ ``nfd-status-http-server``, which reads the NFD status and publishes over HTTP.
Planned Functions and Features for Next Releases
------------------------------------------------
- NACK
A packet sent back by a producer or a router to signal the unavailability of a requested
Data packet. The protocol specification for NACK is in progress.
- New strategies
Additional strategies, including self-learning that populates the FIB by observing
Interest and Data exchange.
- Hop-by-hop Interest limit mechanism
For congestion control
- Face enhancements
Add fragmentation support for Ethernet face, may add support for new types such as
WiFi direct and WebSockets.
- Tables
Experiment and evaluate different data structures and algorithms.
- RIB management
Move to more scalable data structures and support all flags in prefix registrations.
- Tunnel management
For hub nodes to authenticate incoming tunnel requests and maintain the tunnels.
- Extensible name-based scoping
Configurable organization-based scoping
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