suexec: Add support for logging to syslog as an alternative to a
logfile.

* support/suexec.c (err_output) [AP_LOG_SYSLOG]: Log to syslog.
  (main): Close syslog fd if open, before execv.  Add -V output
  for AP_LOG_SYSLOG.

* configure.in: Add --with-suexec-syslog argument; allow
  --without-suexec-logfile to omit definition of AP_LOG_EXEC.


suexec: Support use of setgid/setuid capability bits on Linux, a
weaker set of privileges than the full setuid/setgid root binary.

* configure.in: Add --enable-suexec-capabilites flag.

* Makefile.in: If configured, use setcap instead of chmod 7555 on
  installed suexec binary.

* modules/arch/unix/mod_unixd.c (unixd_pre_config): Drop test for
  setuid bit if capability bits are used.

* docs/manual/: Add docs.


* docs/manual/suexec.html.en: Update for syslog logging.


* configure.in: Correct handling of --with-suexec-logfile in r1341905,
  thanks to rpluem.


* support/suexec.c: Define AP_LOG_FACILITY.
  (err_output): Use AP_LOG_FACILITY for syslog facility.

Suggested by: kbrand


* configure.in: Fix help text for --with-suexec-syslog.

Submitted by: jorton
Reviewed by: jorton, ylavic, jim


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* modules/ssl/ssl_engine_init.c (ssl_init_Module): Don't enable SSL
  for a vhost if SSLEnable is not used and no certs are configured,
  even if the Listen protocol is "https".  Restores behaviour to that
  prior to r1809303 for configs which would now otherwise fail at
  startup.

Submitted by: jorton
Reviewed by: jorton, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1832495 13f79535-47bb-0310-9956-ffa450edef68

if the ErrorLog directive is configured with the 'syslog' prefix. PR 62102

trunk patch: none, as far as I can see the code in trunk diverged too much
          due to the code in STALLED for ap_errorlog_provider.
 
Submitted by: elukey, jhriggs, jailletc36
Reviewed by: elukey, jhriggs, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1832493 13f79535-47bb-0310-9956-ffa450edef68

Instrument 'bbout'


mod_http2: use proper ARP defined for formatting apr_off_t


On the trunk:

mod_http2: on level trace2, log any unsuccessful HTTP/2 direct connection upgrade
     with base64 encoding to unify its appearance in possible bug reports.


On the trunk:

* mod_http2: calculate unencrypted connection sniffing base64 only when log level is at required height. [Ruediger Pluem]


On the trunk:

mod_http2: accurate reporting of h2 data input/output per request via mod_logio. Fixes
     an issue where output sizes where counted n-times on reused slave connections. See
     gituhub issue: https://github.com/icing/mod_h2/issues/158


Submitted by: jailletc36, icing, icing, icing, icing
Reviewed by: icing, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1832489 13f79535-47bb-0310-9956-ffa450edef68

On the trunk:

mod_http2: always wake up any conditional waits when streams are aborted. Fixes race conditions where timeouts would trigger instead.

Submitted by: icing
Reviewed by: icing, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1832487 13f79535-47bb-0310-9956-ffa450edef68

* When mod_http2 is loaded more then ThreadsPerChild backend connections can
  be useful as mod_http2 has an additional thread pool on top of
  ThreadsPerChild.
  But leave the default with ThreadsPerChild.


* Add some some comment why we do not limit hmax any longer


mod_proxy: follow up to r1822849.

Get the help(er) of mod_http2 to determine how much connections should
be handled in the reslist by default (i.e. max_threads).


mod_proxy: follow up to r1822849 and r1822878.

Does r1822878's "static" APR_RETRIEVE_OPTIONAL_FN work if, say, mod_proxy is
builtin but mod_http2 isn't?

Not worth taking the risk here since it's not a fast path...

Note: if this is an issue, I'm afraid it applies elsewhere too.


mod_proxy: follow up to r1822849 and r1822879.

Fix my maths, thanks Stefan and Rüdiger!


needs mod_http2.h


* Add missing CHANGES entry for revisions 1822849,1822858,1822878,1822879,1822883,1828485


Submitted by: rpluem, ylavic, ylavic, ylavic, gsmith, rpluem
Reviewed by: rpluem, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1832485 13f79535-47bb-0310-9956-ffa450edef68

PR62186: preserve %<m for ErrorDocument internal redirects

  *) core: Preserve the original HTTP request method in the '%<m' LogFormat
     when an path-based ErrorDocument is used.  PR 62186.
     [Micha Lenk <micha lenk.info>]

Submitted By: Micha Lenk
Committed By: covener

Submitted by: covener
Reviewed by: covener, jhriggs, jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1830248 13f79535-47bb-0310-9956-ffa450edef68

     trunk patch: http://svn.apache.org/r1827196
     2.4.x patch: svn merge -c 1827196 ^/httpd/httpd/trunk .
     +1: icing, ylavic, jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1829486 13f79535-47bb-0310-9956-ffa450edef68

mod_dumpio: do nothing below log level TRACE7.

For instance, depending on EnableMMAP/Sendfile configuration, don't split
file brigades to 8K heap buckets upon reading.



mod_dumpio: follow up to r1818802.

Negate APLOGctrace7(c) test!

Also, return DECLINED when nothing is to be done, same result as OK but
possibly more semantically correct.


Submitted by: ylavic
Reviewed by: jailletc36, jorton, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1828743 13f79535-47bb-0310-9956-ffa450edef68

mod_md: Fix compilation with OpenSSL before version 1.0.2.

Symbol ASN1_TIME_diff is only available for 1.0.2+,
but luckily alternative code we can use is already
available, originally written for the LibreSSL case.

Submitted by: rjung
Reviewed by: rjung, ylavic, jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1828741 13f79535-47bb-0310-9956-ffa450edef68

mod_ssl: Fix merging of proxy SSL context outside <Proxy> sections.

Regression introduced in 2.4.30. PR 62232.

The proxy SSL_CTX was not inherited from the vhost (the only available in
2.4.29) in/for any directory context besides <Proxy>...

Mostly debugged and fixed by Rainer, thanks!


Submitted by: ylavic
Reviewed by: ylavic, rpluem, jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1828735 13f79535-47bb-0310-9956-ffa450edef68

copy apr_sockaddr_is_wildcard to maintain 1.4.x support.




CHANGES for r1827654

Submitted by: covener
Reviewed by: covener, ylavic, rpluem, jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1828734 13f79535-47bb-0310-9956-ffa450edef68

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modules/md/mod_md.h is now a new public API
also used by other modules (currently mod_ssl),
so it must be in the include path. It was
missing for cmake builds.

Note that this change does not yet enable building
mod_md itself using cmake. That part is still
missing.

CTR (cmake builds only).

Backport of r1828669 from trunk.


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bump CVE's to top of each release



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PR62200: EBCDIC: ap_rgetline APR_ENOSPC

On EBCDIC systems, translation does not occur in ap_rgetline() if the line is
larger than the buffer size.

(note: No STATUS vote for EBCDIC fix)

Submitted By: Hank Ibell
Committed By: covener



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1827360 13f79535-47bb-0310-9956-ffa450edef68

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Fix timeout logging in ap_process_request().

We can't use 'r' after ap_process_request_after_handler(), the core output
filter might have cleaned up its deferred bucket brigade on error, including
the EOR bucket.

Reported by: steffenal
Closes SpiderLabs/ModSecurity#1542


Follow up to r1826556: CHANGES entry.


Submitted by: ylavic
Reviewed by: ylavic, covener, rjung


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826899 13f79535-47bb-0310-9956-ffa450edef68

mod_slotmem_shm: SHMs need to be attached in MPM winnt children processes.

We can't (re-)create them since they exist already and are owned by the
parent process.


Submitted by: ylavic
Reviewed by: ylavic, covener, rjung


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826897 13f79535-47bb-0310-9956-ffa450edef68

htpasswd/htdigest: Disable support for bcrypt on EBCDIC platforms.
apr-util's bcrypt implementation doesn't tolerate EBCDIC.

Submitted by: rjung
Reviewed by: rjung, covener, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826892 13f79535-47bb-0310-9956-ffa450edef68

ab: try all destination socket addresses returned by apr_sockaddr_info_get
instead of failing on first one when not available.
Needed for instance if localhost resolves to both ::1 and 127.0.0.1
e.g. if both are in /etc/hosts.

ab: Use only one connection to determine working destination socket address.

Submitted by: rjung
Reviewed by: rjung, covener, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826891 13f79535-47bb-0310-9956-ffa450edef68

htpasswd/htdbm: report the right limit when get_password()
overflows.

Submitted by: rjung
Reviewed by: rjung, covener, jailletc36


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826888 13f79535-47bb-0310-9956-ffa450edef68

htpasswd: Don't fail in -v mode if password file is unwritable.
PR 61631.

Submitted by: rjung
Reviewed by: rjung, ylavic, covener


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826887 13f79535-47bb-0310-9956-ffa450edef68

htpasswd: don't point to (unused) stack memory on output
to make static analysers happy.  PR 60634.

Submitted by: rjung
Reviewed by: rjung, ylavic, covener


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826886 13f79535-47bb-0310-9956-ffa450edef68

LibreSSL doesn't have or require applink.c

Submitted by: rjung
Reviewed by: rjung, ylavic, covener


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826885 13f79535-47bb-0310-9956-ffa450edef68

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* support/ab.c: Fix crash caused by integer overflow when printing stats with
lot of requests (for example -n 500000000).

Submitted by: jkaluza
Reviewed by: jorton, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826310 13f79535-47bb-0310-9956-ffa450edef68

* mod_access_compat, mod_authz_host: Handle '#' character.
For mod_access_compat, disable '#' in hostname completely.
For mod_authz_host, treat '#' as a comment and ignore everything after that.
This allows better handling of admin errors like
'Require host localhost# Add example.com later'.

* modules/aaa/mod_authz_host.c (host_check_authorization): Simplify
  comment stripping in "Require host"; log a warning if a comment is
  used in 'Require host', or an error if the expression is empty with
  the comment stripped. (Currently in 2.4, #comment part is parsed)

Submitted by: jkaluza, jorton
Reviewed by: jorton, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826309 13f79535-47bb-0310-9956-ffa450edef68

* support/rotatelogs.c (get_now): Return the offset applied to the
  Unix time as a parameter.
  (doRotate): When exploding the time for strtfime formatting, iff in
  -l mode, subtract the offset and explode the real Unix time as a
  local time so %Z etc works correctly.

* support/rotatelogs.c (get_now): Fix the NULL ptr dereferences 
  added in r1532281.

* support/rotatelogs.c: Introduce an adjusted_time_t type to store the
  weird "adjusted time since epoch" type returned by get_now().
  Switch from int to long to fix an unnecessary Y2K38 issue.  Adjust
  use throughout and clean up other type issues.  No functional change
  intended apart from fixing Y2K38.

Submitted by: jorton
Reviewed by: jorton, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826306 13f79535-47bb-0310-9956-ffa450edef68

Add optional _RAW suffix to SSL_*_DN_xx attribute names, allowing
users to convert an attribute value without conversion to UTF-8.  (A
public CA has issued certs with attributes tagged as the wrong ASN.1
string types.)

* modules/ssl/ssl_util_ssl.c (asn1_string_convert): Rename from
  asn1_string_to_utf8; add raw argument. Reimplement _to_utf8 as
  macro.
  (modssl_X509_NAME_ENTRY_to_string): Add raw argument.

* modules/ssl/ssl_engine_vars.c (ssl_var_lookup_ssl_cert_dn): Use raw
  string conversion if _RAW suffix is present in DN component.

Submitted by: jorton
Reviewed by: jorton, jim, ylavic


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1826300 13f79535-47bb-0310-9956-ffa450edef68

... for the non-blocking connect case introduced in 2.4.30. 

Submitted By: jorton
Reviewed By: ylavic, druggeri, covener




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