[Stub-resolver] Fwd: [getdns-api] getdns 0.1.5 released

Goyal, Neel ngoyal at verisign.com
Fri Oct 31 19:23:42 CET 2014 

You can punt the node work over to me.  I¹ll merge to master soon now that
the release is out.

On 10/31/14, 2:22 PM, "Willem Toorop" <willem at nlnetlabs.nl> wrote:

>Thanks!  It did not go completely without a hitch.  Libuv changed a
>prototype for which I had to write a configure test;  There were some
>symbol conflicts with libunbound on FreeBSD; and I am always struggling
>with the administrative overhead of nodejs, but alas;  It is released
>and it is a good release!  I am happy with it.
>
>Good work all!
>
>Op 31-10-14 om 17:54 schreef Mankin, Allison:
>> Also, beautiful work!!
>> 
>> On Oct 31, 2014, at 9:44, "Mankin, Allison" <amankin at verisign.com
>> <mailto:amankin at verisign.com>> wrote:
>> 
>>> Hi Angelique, 
>>>
>>> Please tweet this for us from getdnsapi
>>>
>>> Please indicate it is a "features release as well as making some bug
>>> fixes" and point to getdnsapi.net <http://getdnsapi.net>
>>>
>>> Begin forwarded message:
>>>
>>>> *From:* Willem Toorop <willem at nlnetlabs.nl
>>>><mailto:willem at nlnetlabs.nl>>
>>>> *Date:* October 31, 2014 at 9:06:13 PDT
>>>> *To:* "getdns-api at vpnc.org <mailto:getdns-api at vpnc.org>"
>>>> <getdns-api at vpnc.org <mailto:getdns-api at vpnc.org>>
>>>> *Subject:* *[getdns-api] getdns 0.1.5 released*
>>>>
>> Dear all,
>> 
>> We have a new release, version 0.1.5 of our getdns API implementation.
>> 
>> This release includes the features from the API that affect hop-by-hop
>> communication and apply to stub resolution mode.  The
>> "add_opt_parameters" extension from section 3.3 of the spec and all
>> getdns_context_set_edns_* functions from Section 8.8 have are now
>> implemented.  The GETDNS_TRANSPORT_TCP_ONLY_KEEP_CONNECTIONS_OPEN
>> transport mode is also implemented with this release.  IPv6 link-local
>> with scope_id upstreams are now supported, both in /etc/resolv.conf as
>> via getdns_context_set_upstream_recursive_servers().
>> 
>> In addition, TCP Fast open is available as an optional feature (linux
>> only).  This mechanism enables data exchange during TCP¹s initial
>> handshake and in doing so it decreases application network latency by
>> one full round-trip time.
>> 
>> To enable these features we have done a major internal rework.  Before,
>> we used libunbound for both stub and recursive mode, but to get the
>> amount of control needed for the hop-by-hop communication features we
>> had to implement stub resolution independently.  For this task we also
>> needed to review and refine our extensible event loop mechanism so it is
>> able to handle events for multiple simultaneous connections.  (This was
>> handled internally by libunbound before)
>> 
>> As a consequence, this release is binary incompatible with respect to
>> the extensible event loop mechanism.  The getdns_context_fd() function
>> that facilitated asynchronous processing based on select is no longer
>> available.  Instead, getdns_context_run() should be used to perform
>> blocking asynchronous processing.  The getdns_context_process_async()
>> and getdns_context_get_num_pending_requests() functions remain for
>> asynchronous processing in non-blocking fashion.
>> 
>> Besides our own three event loop extensions shipped alongside the
>> library (for libevent, libev and libuv) we are aware of only one
>> software package affected by this: the nodejs bindings.  A new release
>> of the nodejs bindings fitting this release will follow shortly.
>> 
>> The internal rework has many improvements as a consequence.  Many
>> implementation details that previously had specific code paths for the
>> different modus operandi (i.e. sync/recursive, sync/stub,
>> async/recursive and async stub) could be merged, resulting in a more
>> consistent and easier to maintain code base.  Consequences can already
>> be seen in the simultaneous querying for IPv4 and IPv6 addresses and the
>> more consistent handling of name spaces, plus the possibility to alter
>> name space evaluation order even after a context has been used to sent
>> out a query.
>> 
>> Note that stub resolution will still use libunbound if any of the DNSSEC
>> extensions are into play.  Performing stub validation independently from
>> libunbound is on the road map for the next release.
>> 
>> Besides these features, many bugs have been fixed with this release.
>> For a complete overview see the ChangeLog section below.
>> 
>> link   : https://getdnsapi.net/dist/getdns-0.1.5.tar.gz
>> md5    : a963594fca8ef2849244aa7290abe7f8
>> sha1   : 5da3f54d0929d967039e5d0d54e7125dd13acf38
>> pgp sig: https://getdnsapi.net/dist/getdns-0.1.5.tar.gz.asc
>> 
>> 
>> ChangeLog
>> =========
>> * 2014-10-31: Version 0.1.5
>>  * Unit tests for transport settings
>>  * Fix: adhere to set maximum UDP payload size
>>  * API change: when no maximum UDP payload size is set, outgoing
>>    values will adhere to the suggestions in RFC 6891 and may follow
>>    a scheme that uses multiple values to maximize receptivity.
>>  * Stub mode use 1232 maximum UDP payload size when connecting to an
>>    IPv6 upstreams and 1432 with an IPv4 upstream.
>>  * Evaluate namespaces (or not) on a per query basis
>>  * GETDNS_NAMESPACE_LOCALNAMES namespace now gives just_address_answers
>>    only and does not mimic a DNS packet answer anymore
>>  * The add_opt_parameters extension
>>  * IPv6 scope_id support with link-local addresses.  Both with parsing
>>    /etc/resolv.conf and by providing them explicitly via
>>    getdns_context_set_upstream_recursive_servers
>>  * Query for A and AAAA simultaneously with return_both_v4_and_v6
>>  * GETDNS_TRANSPORT_TCP_ONLY_KEEP_CONNECTIONS_OPEN DNS transport
>>  * Fix: Answers without RRs in query secion (i.e. REFUSED)
>>  * Fix: Return empty response dict on timeout in async mode too
>>  * Move spec examples to spec subdirectory
>>  * Fix issue#76: Setting UDP Payload size below 512 should not error
>>  * Fix: Include OPT RR in response dict always (even without options)
>>  * TCP Fast open support (linux only).
>>    Enable with the --enable-tcp-fastopen configure option
>>  * Bump library version because of binary API change
>> 
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