Merge r1530793 from trunk:

[apache] / STATUS

APACHE 2.4 STATUS:                        -*- mode: text; coding: utf-8 -*-
Last modified at [$Date$]

The current version of this file can be found at:

  * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS

Documentation status is maintained separately and can be found at:

  * docs/STATUS in this source tree, or
  * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/docs/STATUS

The current development branch of this software can be found at:

  * http://svn.apache.org/repos/asf/httpd/httpd/trunk

Consult the following STATUS files for information on related projects:

  * http://svn.apache.org/repos/asf/apr/apr/trunk/STATUS
  * http://svn.apache.org/repos/asf/apr/apr/branches/1.4.x/STATUS
  * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.4.x/STATUS

Patches considered for backport are noted in their branches' STATUS:

  * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x/STATUS
  * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/STATUS
  * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS



Release history:
    [NOTE that x.{odd}.z versions are strictly Alpha/Beta releases,
          while x.{even}.z versions are Stable/GA releases.]

    2.4.7   : In development.
    2.4.6   : Tagged on July 15, 2013. Released July, 22, 2013
    2.4.5   : Tagged on July 11, 2013, not released.
    2.4.4   : Tagged on February 18, 2013. Released Feb 25, 2013
    2.4.3   : Tagged on August 17, 2012. Released Aug 18, 2012
    2.4.2   : Tagged on April 5, 2012. Released Apr 17, 2012.
    2.4.1   : Tagged on February 13, 2012. Released Feb 21, 2012.
    2.4.0   : Tagged on January 16, 2012, not released.
    2.3.16  : Tagged on December 15, 2011.
    2.3.15  : Tagged on November 8, 2011. Released Nov. 15, 2011.
    2.3.14  : Tagged on August 1, 2011. Released Aug. 9, 2011.
    2.3.13  : Tagged on June 28, 2011, not released.
    2.3.12  : Tagged on May 11, 2011. Released May 23, 2011.
    2.3.11  : Released as Beta on March 7, 2011.
    2.3.10  : Tagged on December 13, 2010. Released Dec 21, 2010.
    2.3.9   : Tagged on November 23, 2010, not released.
    2.3.8   : Tagged on August 24, 2010.
    2.3.7   : Tagged on August 19, 2010, not released.
    2.3.6   : Released on June 21, 2010.
    2.3.5   : Released on January 26, 2010.
    2.3.4   : Released on December 8, 2009.
    2.3.3   : Tagged on November 11, 2009, not released.
    2.3.2   : Tagged on March 23, 2009, not released.
    2.3.1   : Tagged on January 2, 2009, not released.
    2.3.0   : Tagged on December 6, 2008, not released.

Contributors looking for a mission:

  * Just do an egrep on "TODO" or "XXX" in the source.

  * Review the bug database at: http://issues.apache.org/bugzilla/

  * Review the "PatchAvailable" bugs in the bug database:

    https://issues.apache.org/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=Apache+httpd-2&keywords=PatchAvailable

    After testing, you can append a comment saying "Reviewed and tested".

  * Open bugs in the bug database.

  * See also the STATUS file in the docs/ directory, which lists documentation-specific TODO items.


CURRENT RELEASE NOTES:

  * Forward binary compatibility is expected of Apache 2.4.x releases, such
    that no MMN major number changes will occur after 2.4.1.  Such changes can
    only be made in the trunk.

  * All commits to branches/2.4.x must be reflected in SVN trunk,
    as well, if they apply.  Logical progression is commit to trunk
    then merge into branches/2.4.x, as applicable.

  * Current exceptions for RTC for this branch:
    . mod_lua
    . documentation
    . non-Unix build
    . non-Unix, single-platform code

RELEASE SHOWSTOPPERS:


PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
  [ start all new proposals below, under PATCHES PROPOSED. ]


  * WinNT MPM: Exit the child if the parent process crashes or is terminated.
    trunk: https://svn.apache.org/r1526666 and r1527220
    2.4.x: trunk patches work if CHANGES are massaged and log-message-tag change
           is ignored; alternately:
           http://people.apache.org/~trawick/winnt-child-exits-if-no-parent.txt
    +1: trawick, covener, jim


PATCHES PROPOSED TO BACKPORT FROM TRUNK:
  [ New proposals should be added at the end of the list ]

  * core: Stop the HTTP_IN filter from attempting to write error buckets
    to the output filters
    trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1482522
    2.4.x patch: trunk patch works modulo CHANGES and ap_mmn
    +1:  jim
    rjung: it seems to me from dev list discussion, that r1482918 and r1484832
           are also needed.

  * mod_proxy: support Unix domain sockets /* ON HOLD */
    trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1451633
                 https://svn.apache.org/viewvc?view=revision&revision=1451905
                 https://svn.apache.org/viewvc?view=revision&revision=1451921
                 https://svn.apache.org/viewvc?view=revision&revision=1452259
                 https://svn.apache.org/viewvc?view=revision&revision=1453981
                 https://svn.apache.org/viewvc?view=revision&revision=1501913
                 https://svn.apache.org/viewvc?view=revision&revision=1513508
    2.4.x patch: trunk patch works modulo CHANGES, ap_mmn, and doc note to
                 include version note
    +1: 

  * mod_proxy: Ensure network errors detected by the proxy are returned as
    504 Gateway Timout as opposed to 502 Bad Gateway
    trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
    2.4.x patch: trunk patch works modulo CHANGES
    +1:
    -1: rpluem: This change is still disputed. See
        http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E

  * mod_socache_shmcb.c: Remove arbitrary restriction on shared memory size
    previously limited to 64MB.
    trunk patch: http://svn.apache.org/r1493921
                 http://svn.apache.org/r1493925
    2.4.x patch: trunk patch works modulo CHANGES
    +1: minfrin, jim
    sf notes: I think a number of variables need to be changed from int to
              apr_size_t, including subcache_size, subcache_data_offset,
              subcache_data_size, total, cache_total. 
              AIUI, especially cache_total starts to go wrong if the cache
              gets larger than 4GB (UINT_MAX). Maybe set the limit at
              MIN(APR_SIZE_MAX,UINT_MAX) until this is fixed?
    minfrin: Surely we should just fix these unsigned ints? Not sure what value
             there would be in trying to bake in an arbitrary limit in the mean
             time when we can just fix the underlying problem instead.
        jim: Agree w/ minfrin
    sf:      This would require someone to do the work. Until someone has the 
             necessary free cycles, I propose to include
             http://svn.apache.org/r1515162

  * mpm_unix: Add ap_mpm_podx_* implementation to avoid code duplication
    and align w/ trunk.
    trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1409214
                 http://svn.apache.org/viewvc?view=revision&revision=1410004
    2.4.x patch: http://people.apache.org/~jim/patches/httpd-2.4-podx-v2.patch
    +1: jim, rjung

  * event: Use skiplist and fold in performance tweeks from trunk
    trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1451706
                 http://svn.apache.org/viewvc?view=revision&revision=1517365
                 http://svn.apache.org/viewvc?view=revision&revision=1529442
    2.4.x patch: http://people.apache.org/~jim/patches/httpd-2.4-event-v3.patch
    +1: jim, rjung
    trawick: needs something like r1529442 to disable event if APR 1.4.x is being used;
             (since eventopt skiplist changes aren't proposed, r1529442 would need to
             be tweaked)
         jj: Done in v3 of patch

  * ab: Check if malloc succeeded
    PR54344
    trunk: http://svn.apache.org/viewvc?view=revision&revision=1488492
    2.4.x: trunk patch works
    +1: jailletc36, jim
    trawick: what happens if malloc() fails?  same msg error over and over?
             (doubtful it gets better for more than a very short while, until
             the leak or fragmentation overtakes temporary freeing of memory)
             is the state of that connection messed up from leaving
             ssl_proceed_handshake() early?

  * mod_ssl: improve ephemeral key handling - in particular, support DH params
    with more than 1024 bits, and allow custom configuration. For a detailed
    list of the changes, see the text at the beginning of the 2.4.x patch.
    trunk patches: https://svn.apache.org/r1526168
                   https://svn.apache.org/r1527291
                   https://svn.apache.org/r1527294
                   https://svn.apache.org/r1527295
                   https://svn.apache.org/r1527926
    2.4.x patch: https://people.apache.org/~kbrand/mod_ssl-2.4.x-ekh.diff
    +1: kbrand,

  * mod_dav: Fix 55306.  Don't require lock tokens for COPY source.
    trunk patches: https://svn.apache.org/r1528718
    2.4.x: trunk works, CHANGES needs to be written when merging
    +1: breser

A list of further possible backports can be found at:                                                                                                                                   
    http://people.apache.org/~rjung/patches/possible-backports-httpd-trunk-2_4.txt
If you want to propose one of those, please still add them here.


OTHER PROPOSALS

   * opinion on more complete DefaultRuntimeDir use in 2.4.x?
     o If a module has a config directive for the run-time file that
       treats the configured path as relative to server root, preserve
       that behavior but change the location when not configured to
       respect DefaultRuntimeDir.  With these changes, users with no
       per-runtime-file configuration directives can control
       everything with DefaultRuntimeDir.
       BUT: Existing users of DefaultRuntimeDir might get a short-term scare
       when some unconfigured run-time file starts respecting their
       DefaultRuntimeDir directive after an upgrade.
       +1: trawick, jim, rjung
       rjung: applicable trunk revisions WITHOUT the compatibility tweaks
              described above:
          scoreboard         r1369477
          core/pid file      r1369808
          core/mutex         r1370288
          mod_socache_XXX    r1370225, r1407385
          mod_ldap           r1371684
          mod_cache          r1407381
          mod_slotmem_plain  r1370763
        igalic: We have three votes, what's the status here?
       Independently, backport any doc tweaks to 2.4 API migration page.

PATCHES/ISSUES THAT ARE STALLED

  * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
    compiled by the build compiler instead of the host compiler.
    Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
    Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
                   http://svn.apache.org/viewvc?view=revision&revision=1328390
                   http://svn.apache.org/viewvc?view=revision&revision=1328714
    2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
    fuankg: on hold until we agree for a better and more simple solution ...

   * mod_ssl: Add support for Next Protocol Negotiation.
     Trunk patch:
       http://svn.apache.org/viewvc?view=revision&revision=1332643
     2.4.x patch:
       Trunk patch works.
     +1: ben
     sf says: Needs r1345599, too.
              And wrowe's comment about the 2.2 patch is also valid for 2.4:
              http://svn.apache.org/viewvc?view=revision&revision=1354823

   * mod_ssl: Add RFC 5878 support. This allows support of mechansisms
              such as Certificate Transparency. Note that new
              mechanisms are supported without software updates.
     trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1352596
     2.4.x patch: http://people.apache.org/~ben/httpd-2.4-rfc5878.patch
     +1: ben, druggeri
     -1: kbrand
     druggeri note: Needs docs for new directive
     kbrand: depends on an unreleased OpenSSL version (1.0.2), and
             RFC 5878 is of "Category: Experimental".
             The API in the OpenSSL implementation from May 2012
             (http://cvs.openssl.org/chngview?cn=22601) only covers the
             privately-defined TLSEXT_AUTHZDATAFORMAT_audit_proof, there's
             no support for x509_attr_cert (section 3.3.1 in RFC 5878) or
             saml_assertion (3.3.2). SSL_CTX_use_authz_file doesn't have
             any docs in OpenSSL, either, and there's no "openssl foo ..."
             command or similar to create/manage such files.
             Additionally, httpd-2.4-rfc5878.patch includes a build-system
             change which is unrelated to this feature.
             Note: as of 2013-04-15, r1352596 has been reverted in trunk
             (with r1468131), for the reasons explained in the message with id
             <515FED7C.5010009@velox.ch> sent to the dev list on 2013-04-06.
     ben: not correct that it depends on OpenSSL 1.0.2, it builds with
          any version. Also, if you read my note to dev@ you will see
          why it is not premature.
     minfrin: once this gets docs, +1.

   * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
                   Moved fixing of shebang to separate target so that it is
                   no longer executed by default and all CGIs remain inactive.
     trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
                  http://svn.apache.org/viewvc?view=revision&revision=1421203
                  http://svn.apache.org/viewvc?view=revision&revision=1421591
     2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
     +1 fuankg, gsmith
     -.8: trawick
          This commit is essentially deciding that an httpd install on
          Windows now has printenv/testcgi written in 2 more languages.
          To the extent that the usefulness is that it shows how to make scripts
          of these types executable by httpd, I believe that the documentation
          is the proper place to solve that.  To the extent that the usefullness
          is to show how to implement a CGI in these particular languages, I believe
          that the httpd distribution and documentation in general is not the
          place for that.  Historically these types of scripts have caused problems
          for downstream vendorsas well as newbies (and sometimes the intersection
          of those two groups) who don't understand that these are information leaks
          once they are enabled, and the subtlety of the way they are disabled ("Apache
          messed up the first line; let me fix that") contributes to that.
     fuankg notes: I've just added a big warning to all CGI scripts which should now
          make absolutely clear that these CGIs are for testing purpose only - so those
          who enable those scripts with inserting the right shebang should be 100% aware
          of any risks (this should cover your last point).
     jim: trawick, does the above address your concerns?
     trawick: to some extent (somebody reading the script gets an idea)
          Why isn't the configuration requirement documented instead
          of described indirectly in a sample?
          Why are these new samples added to the install without three
          votes?  (I didn't veto it; put your name next to the two
          existing ones and I'll be satisified that enough people
          considered this addition as an appropriate solution for a
          real httpd usability problem.)
     wrowe: I'd agree with trawick, and suggest that these scripts can begin
            their life somewhere in the manual/ tree.  This really seems like
            the place where /usr/share/httpd/examples/ would be useful, but
            there isn't an ordinary directory for that.  Since we want none
            of the scripts to function 'out of the box', what about a new
            cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
            might work?