1 APACHE 2.4 STATUS: -*- mode: text; coding: utf-8 -*-
2 Last modified at [$Date$]
4 The current version of this file can be found at:
6 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS
8 The current development branch of this software can be found at:
10 * http://svn.apache.org/repos/asf/httpd/httpd/trunk
12 Consult the following STATUS files for information on related projects:
14 * http://svn.apache.org/repos/asf/apr/apr/trunk/STATUS
15 * http://svn.apache.org/repos/asf/apr/apr/branches/1.4.x/STATUS
16 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.4.x/STATUS
17 * http://svn.apache.org/repos/asf/apr/apr/branches/1.5.x/STATUS
18 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.5.x/STATUS
19 * http://svn.apache.org/repos/asf/apr/apr/branches/1.6.x/STATUS
20 * http://svn.apache.org/repos/asf/apr/apr-util/branches/1.6.x/STATUS
22 Patches considered for backport are noted in their branches' STATUS:
24 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/STATUS
25 * http://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x/STATUS
29 [NOTE that x.{odd}.z versions are strictly Alpha/Beta releases,
30 while x.{even}.z versions are Stable/GA releases.]
32 2.4.28 : In development.
33 2.4.27 : Tagged on July 6, 2017. Released on July 11, 2017.
34 2.4.26 : Tagged on June 13, 2017. Released on June 19, 2017.
35 2.4.25 : Tagged on December 16, 2016. Released on December 21, 2016.
36 2.4.24 : Tagged on December 16, 2016, not released.
37 2.4.23 : Tagged on June 30, 2016. Released on July 05, 2016.
38 2.4.22 : Tagged on June 20, 2016, not released.
39 2.4.21 : Tagged on June 16, 2016, not released.
40 2.4.20 : Tagged on April 4, 2016. Released on April 11, 2016.
41 2.4.19 : Tagged on March 21, 2016, not released.
42 2.4.18 : Tagged on December 8, 2015. Released on December 14, 2015.
43 2.4.17 : Tagged on October 9, 2015. Released October 13, 2015.
44 2.4.16 : Tagged on July 9, 2015. Released July 15, 2015
45 2.4.15 : Tagged on June 19, 2015. Not released.
46 2.4.14 : Tagged on June 11, 2015. Not released.
47 2.4.13 : Tagged on June 4, 2015. Not released.
48 2.4.12 : Tagged on January 22, 2015. Released Jan 29, 2015
49 2.4.11 : Tagged on January 15, 2015. Not released.
50 2.4.10 : Tagged on July 15, 2014. Released July 21, 2014
51 2.4.9 : Tagged on March 13, 2014. Released on March 17, 2014
52 2.4.8 : Tagged on March 11, 2014. Not released.
53 2.4.7 : Tagged on November 19, 2013. Released on Nov 25, 2013
54 2.4.6 : Tagged on July 15, 2013. Released July, 22, 2013
55 2.4.5 : Tagged on July 11, 2013, not released.
56 2.4.4 : Tagged on February 18, 2013. Released Feb 25, 2013
57 2.4.3 : Tagged on August 17, 2012. Released Aug 18, 2012
58 2.4.2 : Tagged on April 5, 2012. Released Apr 17, 2012.
59 2.4.1 : Tagged on February 13, 2012. Released Feb 21, 2012.
60 2.4.0 : Tagged on January 16, 2012, not released.
61 2.3.16 : Tagged on December 15, 2011.
62 2.3.15 : Tagged on November 8, 2011. Released Nov. 15, 2011.
63 2.3.14 : Tagged on August 1, 2011. Released Aug. 9, 2011.
64 2.3.13 : Tagged on June 28, 2011, not released.
65 2.3.12 : Tagged on May 11, 2011. Released May 23, 2011.
66 2.3.11 : Released as Beta on March 7, 2011.
67 2.3.10 : Tagged on December 13, 2010. Released Dec 21, 2010.
68 2.3.9 : Tagged on November 23, 2010, not released.
69 2.3.8 : Tagged on August 24, 2010.
70 2.3.7 : Tagged on August 19, 2010, not released.
71 2.3.6 : Released on June 21, 2010.
72 2.3.5 : Released on January 26, 2010.
73 2.3.4 : Released on December 8, 2009.
74 2.3.3 : Tagged on November 11, 2009, not released.
75 2.3.2 : Tagged on March 23, 2009, not released.
76 2.3.1 : Tagged on January 2, 2009, not released.
77 2.3.0 : Tagged on December 6, 2008, not released.
79 Contributors looking for a mission:
81 * Just do an egrep on "TODO" or "XXX" in the source.
83 * Review the bug database at: http://issues.apache.org/bugzilla/
85 * Review the "PatchAvailable" bugs in the bug database:
87 https://issues.apache.org/bugzilla/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=Apache+httpd-2&keywords=PatchAvailable
89 After testing, you can append a comment saying "Reviewed and tested".
91 * Open bugs in the bug database.
93 * See also the STATUS file in the docs/ directory, which lists documentation-specific TODO items.
96 CURRENT RELEASE NOTES:
98 * Forward binary compatibility is expected of Apache 2.4.x releases, such
99 that no MMN major number changes will occur after 2.4.1. Such changes can
100 only be made in the trunk.
102 * All commits to branches/2.4.x must be reflected in SVN trunk,
103 as well, if they apply. Logical progression is commit to trunk
104 then merge into branches/2.4.x, as applicable.
106 * Current exceptions for RTC for this branch:
111 . non-Unix, single-platform code
113 RELEASE SHOWSTOPPERS:
115 PATCHES ACCEPTED TO BACKPORT FROM TRUNK:
116 [ start all new proposals below, under PATCHES PROPOSED. ]
120 PATCHES PROPOSED TO BACKPORT FROM TRUNK:
121 [ New proposals should be added at the end of the list ]
123 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
124 allowing per backend TLS configuration.
125 trunk patch: http://svn.apache.org/r1740928
126 http://svn.apache.org/r1740960
127 http://svn.apache.org/r1740967
128 http://svn.apache.org/r1740987
129 http://svn.apache.org/r1740998
130 http://svn.apache.org/r1742697
131 http://svn.apache.org/r1756976
132 http://svn.apache.org/r1781313
133 2.4.x patch: http://home.apache.org/~ylavic/patches/httpd-2.4.x-r1740928_and_co-v3.patch
135 mrumph: Since this has been sitting for awhile, there are several places
136 where this patch needs to be adjusted against recent changes to 2.4.x.
137 ylavic: With current 2.4.x (r1807662), there seems to be only a conflict with
138 MMN, which can probably be taken by the backporter. I don't see the
139 other places where it needs adjustments, Mike?
141 *) mod_remoteip: Add PROXY protocol support
142 trunk patch: http://svn.apache.org/r1776575
143 http://svn.apache.org/r1776578 (doc fix)
144 http://svn.apache.org/r1776627 (shortened name + doc fix)
145 http://svn.apache.org/r1776674 (attribution moved to CHANGES)
146 http://svn.apache.org/r1776740 (attribution updated in mod_remotip.c)
147 http://svn.apache.org/r1778268 (fix compiler warning)
148 http://svn.apache.org/r1780725 (set buckets aside)
149 http://svn.apache.org/r1781030 (fix strict GCC warning)
150 http://svn.apache.org/r1781031 (reference the filter by handle)
151 http://svn.apache.org/r1781701 (rework optional processing case)
152 http://svn.apache.org/r1788674 (final edge cases/ignore slave conns)
153 http://svn.apache.org/r1789800 (remove optional processing)
154 http://svn.apache.org/r1790169 (rename "exception" directive)
155 http://svn.apache.org/r1790457 (Update directive name in err message)
156 http://svn.apache.org/r1806985
157 2.4 convenience patch (includes CHANGES):
158 http://home.apache.org/~jim/patches/RemoteIPProxyProtocol.2.4.x.patch
159 http://svn.apache.org/r1806985
161 mrumph: I had a chance to review this proposal.
162 I committed some suggested changes to trunk in r1806985.
163 Also, the copyright in mod_remoteip.c is of some concern.
164 Perhaps the terms of the copyright should be included in that note.
165 And on a personal note, today is my last day with Oracle.
166 So it may well be my last day with Apache as well.
167 It has been great working with all of you.
168 jim: Not sure what the copyright concern is, but added r1806985
171 * mod_journald: Add new module mod_journald to log error logs into journald.
172 trunk patch: http://svn.apache.org/r1610339
173 http://svn.apache.org/r1621806
174 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-mod_journald.patch
176 jchampion: Looks like the headers require GCC extensions to compile, so
177 mod_journald can't be configured in maintainer mode (-std=c89).
178 Can anyone else reproduce, or is it just my distro?
180 *) Makefile: Use different variables to track normal modules and MPMs during
181 build. Only the enabled MPM is uncommented in the configuration
182 if multiple DSOs are built, and LoadModule for MPMs will now come
183 before LoadModule for the normal modules. Patch by rjung.
184 trunk patch: https://svn.apache.org/r1729235
185 https://svn.apache.org/r1730079
186 https://svn.apache.org/r1801665
187 2.4.x patch: svn merge -c1729235 -c1730079 -c1801665 ^/httpd/httpd/trunk .
190 *) mod_proxy: Loadfactor can now be a decimal number (eg: 1.25)
191 trunk patch: http://svn.apache.org/r1805188
192 http://svn.apache.org/r1805190
193 http://svn.apache.org/r1805206 (partial)
194 http://svn.apache.org/r1808723
195 2.4.x patch: http://home.apache.org/~jim/patches/httpd-2.4-loadfactor-v2.patch
197 ylavic: Missing r1805190? Also, I'd use double/%lf instead of float/%f for
198 floating point arithmetic...
199 jim: I don't see the need to use double when float is more than sufficient.
201 humbedooh: For numbers with this low level of precision, I don't see a need
204 *) htdigest: prevent a buffer overflow when a string exceeds its maximum size
205 in a password file. PR: 61511
206 trunk patch: http://svn.apache.org/r1808008
207 http://svn.apache.org/r1808085
208 2.4.x patch: svn merge -c1808008 -c1808085 ^/httpd/httpd/trunk .
211 PATCHES/ISSUES THAT ARE BEING WORKED
212 [ New entries should be added at the START of the list ]
214 *) mod_ssl: Return 502 instead of 500 when SSL peer check or
215 proxy_post_handshake hook fails.
216 Trunk patch: r1645529 (works)
217 2.4.x patch which adds CHANGES: https://emptyhammock.com/media/downloads/r1645529-to-2.4.x.txt
219 ylavic: there may be missing bits, see thread for commit r1736510.
221 *) core: Drop an invalid Last-Modified header value coming
222 from a (F)CGI script instead of replacing it with Unix epoch.
223 Warn the users about Last-Modified header value replacements
224 and violations of the RFC.
225 trunk patch: http://svn.apache.org/r1748379
226 http://svn.apache.org/r1750747
227 http://svn.apache.org/r1750749
228 http://svn.apache.org/r1750953
229 http://svn.apache.org/r1751138
230 http://svn.apache.org/r1751139
231 http://svn.apache.org/r1751147
232 http://svn.apache.org/r1757818
233 2.4.x: trunk patches work, final view:
234 http://home.apache.org/~elukey/httpd-2.4.x-core-last_modified_tz_logging.patch
235 The problem has been discussed in dev@ extensively but we did not reach a common
236 agreement about how to proceed in the long term. While we wait, I would really like
237 to introduce useful logs for the users (the starting point of this change was a users@
238 email thread). If this is not the right way to go I will move the patch to other
239 sections of STATUS (stalled or being worked).
240 The code has been tested with a simple PHP script returning different Last-Modified
241 headers (GMT now, GMT now Europe/Paris, GMT tomorrow, GMT yesterday, PST now).
244 *) http: Don't remove the Content-Length of zero from a HEAD response if
245 it comes from an origin server, module or script. Allow the previous
246 behaviour (for legacy/buggy modules only, not origin) by also backporting
247 the HttpContentLengthHeadZero directive (and also HttpExpectStrict which
248 comes for free with the same commit).
249 trunk patch: http://svn.apache.org/r1554303
250 http://svn.apache.org/r1678215
251 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-preserve_head_cl_zero.patch
253 ylavic: r1554303 issued a major MMN bump, but since the ABI change is two
254 ints added at the end of core_server_config, the proposed merge
255 does a minor bump only.
256 minfrin: Two new directives need to be documented.
258 * mod_proxy_http: Don't establish or reuse a backend connection before pre-
259 fetching the request body, so to minimize the delay between it is supposed
260 to be alive and the first bytes sent: this is a best effort to prevent the
261 backend from closing because of idle or keepalive timeout in the meantime.
262 Also, handle a new "proxy-flushall" environment variable which allows to
263 flush any forwarded body data immediately. PR 56541+37920.
264 trunk patch: http://svn.apache.org/r1656259
265 http://svn.apache.org/r1656359 (CHANGES entry)
266 2.4.x patch: trunk works (modulo CHANGES, docs/log-message-tags)
268 -0: jim: This seems to be a hit to normal performance, to handle an
269 error and/or non-normal condition. The pre-fetch is
270 expensive, and is always done, even before we know that
271 the backend is available to rec' it. I understand the
272 error described, but is the fix actually worth it (plus
273 it seems to allow for a DDoS vector).
274 ylavic: It seems to me that the problem is real since we reuse the
275 connection before prefetching 16K (either controlled by the
276 client, or by an input filter), we currently always prefetch
277 these bytes already. Regarding performance I don't see any
278 difference (more cycles) compared with the current code.
279 However I think I failed to rebuild the header_brigade when
280 the proxy loop is retried (ping), so I need to rework this.
281 Do you think we'd better remove the prefetch, or maybe just
282 make it nonblocking (by default)?
283 jim: Non-blocking seems the best way to handle...
285 * mod_dav: Allow other modules to become providers and add ACLs
286 to the DAV response. Requires a release of apr-util v1.6.
287 trunk patch: http://svn.apache.org/r1748322
288 2.4.x: trunk works modulo CHANGES/MMN
290 rpluem asks: Will this compile with apr-util < v1.6 and keep
291 mod_dav working (without the new features of the patch of course)?
292 I doubt that we will require apr-util 1.6 for the lifetime of 2.4.x
293 (see the discussion around ap_cstr_casecmp[n] an apr 1.6)
294 minfrin: Yes, as you can see in the patch everything applies only
295 if APR_XML_X2T_PARSED is defined, and the patch was tested with
296 both apr-util v1.6 and apr-util v1.5.
297 -1: jorton, breaks binary backwards compat per dev@ discuss
298 msgid <20160902120654.GA12674@redhat.com>
299 (& also, making the structure change with apr-util version
300 means it breaks binary compat across an apr-util upgrade?)
302 * Support PCRE2 (10.x) in place of PCRE (8.x).
303 Submitted by: wrowe, Petr Pisar [ppisar redhat.com]
305 http://svn.apache.org/r1773454
306 http://svn.apache.org/r1773741
307 http://svn.apache.org/r1773742
308 http://svn.apache.org/r1773839
309 http://svn.apache.org/r1773870
310 http://svn.apache.org/r1773882
311 wrowe notes that the current code is too inefficient, owing to the fact
312 that the ovector is a required allocation and is no longer allocated on
313 the stack, by design. The correct fix is an apr userdata allocation on
314 the appropriate pool, which would be thread-safe, but the actual API of
315 ap_regexec[_len]() offers us no pool. We cannot associate that pool with
316 the ap_regex_t, because a single regex may be used by many threads in
317 parallel and is not thread-safe beyond initialization.
318 So the only fix allowing us to use PCRE 10 in httpd 2.4 would be to write
319 this as a thread safe storage buffer for the majority of cases (<10 $args)
320 and we don't have a portable tls mechanism to do so.
323 PATCHES/ISSUES THAT ARE STALLED
325 * core: Add ap_errorlog_provider to make ErrorLog logging modular. This
326 backport keeps syslog logging as part of httpd core and only adds
327 API to allow other modules to be used for error logging.
328 trunk patch: http://svn.apache.org/r1525597
329 http://svn.apache.org/r1525664
330 http://svn.apache.org/r1525845
331 http://svn.apache.org/r1527003
332 http://svn.apache.org/r1527005
333 http://svn.apache.org/r1532344
334 http://svn.apache.org/r1539988
335 http://svn.apache.org/r1541029
336 http://svn.apache.org/r1543979
337 http://svn.apache.org/r1544156
338 http://svn.apache.org/r1626978
339 2.4.x patch: http://people.apache.org/~jkaluza/patches/httpd-2.4.x-errorlog_provider.patch
341 +1: covener w/ doc or code to fix syntax (providername:providerarg not supported like syslog or socacheproviders,
342 needs 2 args which is not valid in ErrorLog manual)
343 trawick: nit: fix "writing" in "/* NULL if we are writing to syslog */"
344 (sorry, haven't finished reviewing completely)
345 jim: What is the status of this??
347 * mod_proxy: Add ap_proxy_define_match_worker() and use it for ProxyPassMatch
348 and ProxyMatch section to distinguish between normal workers and workers
349 with regex substitutions in the name. Implement handling of such workers
350 in ap_proxy_get_worker(). Fixes the bug when regex workers were not
351 matched and used for request. PR 43513.
352 trunk patch: http://svn.apache.org/r1609680
353 http://svn.apache.org/r1609688
354 http://svn.apache.org/r1641381
355 ylavic: Merge patch provided (reusing new->real to avoid double de_socketfy() call).
356 Also added missing r1609688 to the patchset.
357 2.4.x patch: http://people.apache.org/~ylavic/httpd-2.4.x-ap_proxy_define_match_worker.patch
359 -0: covener tried to review this one in Austin with Jeff. Does the added match function
360 really cover a very narrow set of parameters with the way it skips over backreferences?
361 Also, why a new API vs. just setting the field inline?
363 * mod_systemd: New module, for integration with systemd on Linux.
364 trunk patch: http://svn.apache.org/r1393976
365 http://svn.apache.org/r1393997
366 http://svn.apache.org/r1484554
367 http://svn.apache.org/r1528032
368 http://svn.apache.org/r1528034
369 http://svn.apache.org/r1614821
370 http://svn.apache.org/r1618579
371 http://svn.apache.org/r1618588
372 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-mod_systemd.patch
374 sf comments: The IdleShutdown logic seems broken. Consider a single
375 active connection that is stalled for 10 seconds. That
376 connection will be broken after GracefulShutdownTimeout.
377 A better logic would be to check if there is any open
378 connection that is not in keep-alive state.
380 * core: Add support for systemd socket activation.
381 trunk patch: http://svn.apache.org/r1511033
382 http://svn.apache.org/r1608686
383 http://svn.apache.org/r1608694
384 http://svn.apache.org/r1608703
385 http://svn.apache.org/r1608721
386 http://svn.apache.org/r1608744
387 2.4.x patch: http://people.apache.org/~jkaluza/patches/mod_systemd/httpd-2.4.x-socket-activation.patch
390 * mod_proxy: Ensure network errors detected by the proxy are returned as
391 504 Gateway Timeout as opposed to 502 Bad Gateway
392 trunk patch: https://svn.apache.org/viewvc?view=revision&revision=1480058
393 2.4.x patch: trunk patch works modulo CHANGES
395 -1: rpluem: This change is still disputed. See
396 http://mail-archives.apache.org/mod_mbox/httpd-dev/201305.mbox/%3C1B16B9E3-87BA-4EEF-939C-7C7313B54714%40gbiv.com%3E
398 * cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will be
399 compiled by the build compiler instead of the host compiler.
400 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
401 Trunk patches: http://svn.apache.org/viewvc?view=revision&revision=1327907
402 http://svn.apache.org/viewvc?view=revision&revision=1328390
403 http://svn.apache.org/viewvc?view=revision&revision=1328714
404 2.4 patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-cross_compile.diff
405 fuankg: on hold until we agree for a better and more simple solution ...
407 * Makefile.win: Added copying of .vbs / .wsf CGIs to Windows install target.
408 Moved fixing of shebang to separate target so that it is
409 no longer executed by default and all CGIs remain inactive.
410 trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1387984
411 http://svn.apache.org/viewvc?view=revision&revision=1421203
412 http://svn.apache.org/viewvc?view=revision&revision=1421591
413 2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x-Makefile.win.diff
416 This commit is essentially deciding that an httpd install on
417 Windows now has printenv/testcgi written in 2 more languages.
418 To the extent that the usefulness is that it shows how to make scripts
419 of these types executable by httpd, I believe that the documentation
420 is the proper place to solve that. To the extent that the usefullness
421 is to show how to implement a CGI in these particular languages, I believe
422 that the httpd distribution and documentation in general is not the
423 place for that. Historically these types of scripts have caused problems
424 for downstream vendorsas well as newbies (and sometimes the intersection
425 of those two groups) who don't understand that these are information leaks
426 once they are enabled, and the subtlety of the way they are disabled ("Apache
427 messed up the first line; let me fix that") contributes to that.
428 fuankg notes: I've just added a big warning to all CGI scripts which should now
429 make absolutely clear that these CGIs are for testing purpose only - so those
430 who enable those scripts with inserting the right shebang should be 100% aware
431 of any risks (this should cover your last point).
432 jim: trawick, does the above address your concerns?
433 trawick: to some extent (somebody reading the script gets an idea)
434 Why isn't the configuration requirement documented instead
435 of described indirectly in a sample?
436 Why are these new samples added to the install without three
437 votes? (I didn't veto it; put your name next to the two
438 existing ones and I'll be satisfied that enough people
439 considered this addition as an appropriate solution for a
440 real httpd usability problem.)
441 wrowe: I'd agree with trawick, and suggest that these scripts can begin
442 their life somewhere in the manual/ tree. This really seems like
443 the place where /usr/share/httpd/examples/ would be useful, but
444 there isn't an ordinary directory for that. Since we want none
445 of the scripts to function 'out of the box', what about a new
446 cgi-examples/ dir alongside cgi-bin/? Otherwise manual/cgi/examples
449 * core: block Define and Undefine in vhost and directory context. Because
450 it is EXEC_ON_READ, it "breaks out" of these contexts anyway.
451 trunk patch: http://svn.apache.org/r1656063
452 http://svn.apache.org/r1656122
453 2.4.x patch: http://people.apache.org/~covener/patches/2.4.x-define-limits.diff
454 +1: covener (I need to review the docs manually in this area)
455 -1: wrowe (blocking will break "working" .conf files on a subversion update
456 meant to pick up security fixes. "Alerting" I would agree to.)