1 APACHE 2.0 STATUS: -*-text-*-
2 Last modified at [$Date: 2001/04/23 11:33:28 $]
6 2.0.16 : rolled April 4, 2001
7 2.0.15 : rolled March 21, 2001
8 2.0.14 : rolled March 7, 2001
9 2.0a9 : released December 12, 2000
10 2.0a8 : released November 20, 2000
11 2.0a7 : released October 8, 2000
12 2.0a6 : released August 18, 2000
13 2.0a5 : released August 4, 2000
14 2.0a4 : released June 7, 2000
15 2.0a3 : released April 28, 2000
16 2.0a2 : released March 31, 2000
17 2.0a1 : released March 10, 2000
19 DAEDALUS 2.0 PROBLEMS:
21 * mod_cgid and suexec have a problem co-existing. suexec sees a null
22 command string sometimes.
24 * core dump from 20010422
26 /usr/local/apache2b/corefiles/httpd.core.3
27 #0 0x806724c in check_hostalias (r=0x81fd03c) at vhost.c:891
28 #1 0x8067489 in ap_update_vhost_from_headers (r=0x81fd03c) at vhost.c:978
29 #2 0x806fa92 in ap_read_request (conn=0x81450fc) at protocol.c:946
30 #3 0x805a168 in ap_process_http_connection (c=0x81450fc) at http_core.c:274
31 #4 0x806bc60 in ap_run_process_connection (c=0x81450fc) at connection.c:82
32 #5 0x806be84 in ap_process_connection (c=0x81450fc) at connection.c:216
33 #6 0x805fbba in child_main (child_num_arg=65) at prefork.c:807
34 #7 0x805fd20 in make_child (s=0x80c64fc, slot=65) at prefork.c:880
35 #8 0x805ffec in perform_idle_server_maintenance () at prefork.c:1021
36 #9 0x80603d1 in ap_mpm_run (_pconf=0x80c600c, plog=0x80f300c, s=0x80c64fc) at prefork.c:1191
37 #10 0x80660cd in main (argc=1, argv=0xbfbffdac) at main.c:425
38 #11 0x8059bf9 in _start ()
40 The input data (received in one read from TCP layer):
42 GET /images/apache_sub.gif HTTP/1.1
44 Referer: http://search.apache.org/index.cgi
45 Accept-Language: en-us
46 Accept-Encoding: gzip, deflate
47 If-Modified-Since: Sat, 02 Dec 1995 21:26:28 GMT
48 If-None-Match: "29e60e-17c3-66972900"
49 User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98; Win 9x 4.90)
51 Connection: Keep-Alive
53 * core dump from 20010418
55 /usr/local/apache2b/corefiles/httpd.core.2
56 #0 0x2813a3c8 in kill () from /usr/lib/libc.so.4
57 #1 0x2817609e in abort () from /usr/lib/libc.so.4
58 #2 0x8065299 in ap_log_assert (szExp=0x80aaa60 "total_bytes_left > 0 && tmplen > 0", szFile=0x80aa2aa "core.c", nLine=2555)
60 #3 0x8075227 in sendfile_it_all (c=0x81470fc, fd=0x814759c, hdtr=0xbfbff670, file_offset=1929216, file_bytes_left=261949,
61 total_bytes_left=261949, flags=0) at core.c:2555
62 #4 0x80761e2 in core_output_filter (f=0x814737c, b=0x814764c) at core.c:3172
63 #5 0x806d227 in ap_pass_brigade (next=0x814737c, bb=0x81e80fc) at util_filter.c:240
64 #6 0x805e696 in check_pipeline_flush (r=0x820803c) at http_request.c:388
65 #7 0x805e707 in ap_process_request (r=0x820803c) at http_request.c:432
66 #8 0x805a1a9 in ap_process_http_connection (c=0x81470fc) at http_core.c:280
67 #9 0x806bc60 in ap_run_process_connection (c=0x81470fc) at connection.c:82
68 #10 0x806be84 in ap_process_connection (c=0x81470fc) at connection.c:216
69 #11 0x805fbba in child_main (child_num_arg=272) at prefork.c:807
70 #12 0x805fd20 in make_child (s=0x80c64fc, slot=272) at prefork.c:880
71 #13 0x805ffec in perform_idle_server_maintenance () at prefork.c:1021
72 #14 0x80603d1 in ap_mpm_run (_pconf=0x80c600c, plog=0x80f300c, s=0x80c64fc) at prefork.c:1191
73 #15 0x80660cd in main (argc=1, argv=0xbfbffadc) at main.c:425
74 #16 0x8059bf9 in _start ()
76 The input data (received in one read from TCP layer):
78 GET /log4j/jakarta-log4j-1.1b2.zip HTTP/1.0
79 Via: 1.0 MDRPRXY01, 1.0 NS2
80 Connection: Keep-Alive
81 User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 4.0)
82 Host: jakarta.apache.org
83 Accept: application/vnd.ms-excel, application/msword, application/vnd.ms-powerpoint, image/gif, image/x-xbitmap, image/jpeg,
85 Accept-Language: en-us,tscii;q=0.5
86 Referer: http://jakarta.apache.org/log4j/docs/download.html
87 Accept-Encoding: gzip, deflate
91 WARNING: ALWAYS check srclib/apr/STATUS and srclib/apr-util/STATUS
93 * There is a bug in how we sort some hooks, at least the pre-config
94 hook. The first time we call the hooks, they are in the correct
95 order, but the second time, we don't sort them correctly. Currently,
96 the modules/http/config.m4 file has been renamed to
97 modules/http/config2.m4 to work around this problem, it should moved
98 back when this is fixed. rbb
100 * Root all file systems with <Directory /> for WIN32/OS2/NW permissions
101 Status: patch brought forward from 1.3.14
102 WIN32 and OS2 need review [William Rowe, Brian Harvard]
104 * Win32: Get Apache working on Windows 95/98. The following work
105 (at least) needs to be done:
106 - winnt MPM: Fix 95/98 code paths in the winnt MPM. There is some NT
107 specific code that is still not in NT only code paths
108 - IOL binds to APR sendfile, implemented with TransmitFile, which
109 is not available on 95/98.
110 - Document warning that OSR2 is required (for Crypt functions, in
113 * Win32: Test access logging with multiple threads. Will the
114 native file I/O calls serialize automagically like the
115 CRT calls or do we need to add region locking each time
119 * Win32: Complete the revamp the service environment and relocation
120 into the WinNT MPM. Changes ServerRoot service registry
121 parameter into ConfigArgs for multiple service startup parameters.
122 Problems to fix in the revamp: -k shutdown/restart are broken,
123 signals are not being acknowledged. Close window and shutdown
124 also seem out of sorts.
125 OtherBill is working on this and will finish over the weekend.
127 * We need a thread-safe resolver, at least on Unix.
128 Status: The best known candidate would be something from
130 Status: Greg asks, "why? doesn't gethostbyname_r() handle this?"
132 * The AddInputFilter and AddOutputFilter directives do not allow the
133 administrator to remove or reorder filters. Once a filter is added
134 in a container, it is present in any subcontainers. It can only be
135 added to the filter chain after any filters specified in enclosing
138 * remove the --disable-shared from the subdir config of APR(UTIL)
139 before the final release. (in fact, it might even be nice to
140 allow for Apache config/build against an already-installed
142 Note: we need to do a "make install" for APR(UTIL) so the shared
143 libraries can be installed properly. We could also use that
144 point to install include files (rather than have Apache
145 know everything that needs to be installed from the
146 sub-packages). The original impetus for doing the
147 disable-shared was because the shared lib wasn't getting
148 installed and a "make clean" in aprutil would make Apache
151 * users who want to install third-party modules into the Apache
152 source tree (for static linking) need to have autoconf and
153 libtool installed. This is because the module needs to have its
154 config.m4 incorporated into ./configure, which means "buildconf"
156 Note: This is in part because we have removed the "extra" directory.
157 In the Apache-2.0 repository, this directory had a config.m4
158 file that allowed people to add external modules by
159 specifying --with-module on the configure line.
161 * ap_vrprintf() needs to handle more than 4K
162 Status: Greg volunteers
164 * mod_dir should normally redirect ALL directory requests which do
165 not include a trailing slash on the URI. However, if a "notes"
166 flag is set (say, via BrowserMatch), this behavior will be
167 disabled for non-GET requests.
168 Status: Greg volunteers
169 MsgId: <20010227104646.E2297@lyra.org>
170 MsgId: <3A9C0097.9C83F07C@Golux.Com>
172 * Usability: Sanitize the MPM config directives. MaxClients in
173 the threaded MPM is totally misleading now as it has little to
174 do with limiting the number of clients (it limits the number
175 of child processes). Bill proposed nomenclature change to
176 something like "StartWorkers, MaxWorkers, etc." that could
177 apply to most all the MPMs (with some notable exceptions).
178 Bill would be happy with changing MaxClients to MaxServers
179 to make it agree with the operation of the StartServers
182 * Doug M. reports that there is a there is a problem with both
183 threaded and prefork mpms children not properly handling
184 SIGTERM which results in the server taking a long time to
186 Status: Paul Reder is investigating...
188 * A design problem with the scoreboard can cause the threaded
189 MPM to get in a state where it will no longer serve requests.
190 When MaxRequestsPerChild is hit, a threaded process will begin
191 allowing it's idle worker threads to exit. The child process
192 may have one (or a few) threads serving really long responses
193 over slow client connections, which will prevent the child
194 process from exiting. The problem is that the
195 perform_idle_server_maintenance code will NOT start a new
196 process to replace the dying child process until the dying child
197 has exited because the new child needs to use the old childs
198 space in the scoreboard. The scoreboard and
199 perform_idle_server_maintenance need to be redesigned.
200 Status: Several proposals discussed on new-httpd (April 16, 2001)
203 RELEASE NON-SHOWSTOPPERS BUT WOULD BE REAL NICE TO WRAP THESE UP:
205 * Performance: Get SINGLE_LISTENER_UNSERIALIZED_ACCEPT
206 optimization working again. Bill would like to see this
207 working for the threaded MPM, then prefork.
209 * mod_tls is very specific to OpenSSL. Make the API calls
210 more generic to support other encryption libraries.
212 * Performance & Debug: Eliminate most (and perhaps all) of the
213 malloc/calloc/frees in the bucket brigade code. Need some
214 light weight memory management functions that allow freeing
215 memory (putting it back into a memory pool) when it is no
216 longer needed. Enabling simple debugging features like guard
217 bands, double free detection, etc. would be cool but certainly
218 not a hard requirement.
220 * Eliminate unnecessary creation of pipes in mod_cgid
222 * the autoconf setup should be fixed to default to using the
223 "Apache" layout from config.layout, and each variable settable
224 in a layout should be overridable on the command line. Plus,
225 what we do right now just doesn't seem to fully fit into how autoconf
226 works, eg. AC_PREFIX_DEFAULT issues.
227 Message-ID: <Pine.BSF.4.20.0104031557420.20876-100000@alive.znep.com>
229 * mod_status ExtendedStatus SS (seconds since last request) is
230 bogus because of an uninitialized field in the scoreboard.
231 Status: Cliff is working on this
233 * All of our MPMs should use APR for threads/processes. This
234 will allow us to error out if a threaded MPM is chosen on a
235 platform that doesn't support threads.
237 * Combine log_child and piped_log_spawn. Clean up http_log.c.
240 * Document mod_file_cache.
242 * OS/2: Make mod_status work for spmt_os2 MPM.
244 * Win32: Win9x console window still won't play nice with the
245 close window, logoff and shutdown scenarios.
246 Status: OtherBill will move the patch forward from 1.3.15, once we
247 get our other Win9x issues solved.
249 * Win32: Add a simple hold console open patch (wait for close or
250 the ESC key, with a nice message) if the server died a bad
251 death (non-zero exit code) in console mode.
252 Status: OtherBill is bringing forward same ugly hack from 1.3.13
254 * Platforms that do not support fork (primarily Win32 and AS/400)
255 Architect start-up code that avoids initializing all the modules
256 in the parent process on platforms that do not support fork.
258 * Win32: Migrate the MPM over to use APR thread/process calls. This
259 would eliminate some code in the Win32 branch that essentially
260 duplicates what is in APR.
262 * There are still a number of places in the code where we are
263 losing error status (i.e. throwing away the error returned by a
264 system call and replacing it with a generic error code)
266 * Win32: Implement reliable piped logs on Windows
268 * Mass vhosting version of suEXEC.
270 * All DBMs suffer from confusion in support/dbmmanage (perl script) since
271 the dbmmanage employs the first-matched dbm format. This is not
272 necessarily the library that Apache was built with. Aught to
273 rewrite dbmmanage upon installation to bin/ with the proper library
274 for predictable mod_auth_db/dbm administration.
276 * use apu_dbm in mod_auth_dbm
277 Status: Greg +1 (low-priority volunteer)
280 Some additional items remaining:
281 - case_preserved_filename stuff
282 (use the new canonical name stuff?)
283 - find a new home for ap_text(_header)
284 - is it possible to remove the DAV: namespace stuff from util_xml?
286 * ap_core_translate() and its use by mod_mmap_static and mod_file_cache
287 are a bit wonky. The function should probably be exposed as a utility
288 function (such as ap_translate_url2fs() or ap_validate_fs_url() or
289 something). Another approach would be a new hook phase after
290 "translate" which would allow the module to munge what the
291 translation has decided to do.
292 Status: Greg +1 (volunteers), Ryan +1
294 * Explore use of a post-config hook for the code in http_main.c which
295 calls ap_fixup_virutal_hosts(), ap_fini_vhost_config(), and
296 ap_sort_hooks() [to reduce the logic in main()]
298 * read the config tree just once, and process N times (as necessary)
300 * (possibly) use UUIDs in mod_unique_id and/or mod_usertrack
302 * (possibly) port the bug fix for PR 6942 (segv when LoadModule is put
303 into a VirtualHost container) to 2.0.
305 * the LTFLAGS = -export-dynamic in the config.m4 is wrong. it is getting
306 added multiple times during the config process. The -export-dynamic
307 should probably move into build/special.mk (the make file used for
308 building Apache modules).
310 * shift stuff to mod_core.h
312 * APR-ize resolver stuff in mod_unique_id (Jeff volunteers)
314 * callers of ap_run_create_request() should check the return value
315 for failure (Doug volunteers)
317 PRs that have been suspended forever waiting for someone to
318 put them into 'the next release':
321 missing call to "setlocale();"
325 Additional status for XBitHack directive
329 Questionable performace of mod_dir() with negotiation
333 Mod_proxy doesn't allow change of error pages
337 Modified PATH environemnt variable is not passed, instead
342 Proxy doesn't deliver documents if not connected
346 proxy converts ~name to %7Ename when name starts with a dot (.)
350 mod_access syntax allows hosts that should be restricted
353 * PR#557: mod_auth-any
354 ~UserHome directories are not honored in absolute pathname
358 * PR#573: mod_log-any
359 More LogFormat directives
363 Proxy FTP Authentication Fails
366 * PR#623: mod_include
367 A smarter "Last Modified" value for SSI documents (see PR number 600)
371 Request of "Options SymLinksIfGroupMatch"
374 * PR#697: mod_include
375 A security tweak I've been using for a few years for SSI
379 Proxy doesn't do links right for OpenVMS files through ftp:
383 imap should read <MAP><AREA>*</MAP> too!
387 RLimitCPU and RLimitMEM don't apply to all children like they should
391 Uses cwd before filling it in, doesn't use syslog
395 it is useful to allow specifiction that root-owned symlinks
396 should always be followed
400 Controlling Access to Remote Proxies would be nice...
404 Adding authentication "on the fly" through the proxy module
407 * PR#1004: apache-api
408 request_config field in request_rec is moderately bogus
412 DoS attacks involving memory consumption
415 * PR#1050: mod_log-any
416 Logging of virtual server to error_log as well
420 ProxyRemote make a dead cycle.
423 * PR#1117: mod_auth-any
424 Using NIS passwd.byname dbm files with AuthDBMUserFile
428 suexec does not parse arguments to #exec cmd
431 * PR#1145: mod_include
432 Allow for Last-Modified: without resorting to XBitHack
436 insufficent AllowOverrides granularity for autoindexing
439 * PR#1158: apache-api
440 improvements to child spawning API
444 ``nph-'' not honored (no buffering) for ProxyRemote mapping
448 Apache cannot handle continuation line in headers
452 setlogin() is not called, causing problems with e.g. identd
456 regerror() exists, use it
459 * PR#1233: apache-api
460 there is no way to keep per-connection per-module state
464 Add frame-safe anchor attribute to mod_autoindex links
468 CGI scripts running as Apache user: security (suexec etc.)
472 Error messages could be easier to spot in cgi.log file for suexec.c
475 * PR#1287: mod_access
476 add allow,deny/deny,allow warning to mod_access
480 Need to know "hit-rate" on proxy cache
483 * PR#1358: mod_log-any
484 Selective url-encode of log fields (or maybe a pseudo
488 * PR#1383: mod_headers
489 I make mod_headers to modify request headers as well as
494 Proxy transfer logging
498 No HTTP_X_FORWARDED_FOR set...
502 ProxyRemote proxy requests fail authentication by firewall
505 * PR#1574: mod_autoindex
506 ReadmeName and HeaderName don't allow for server-parsed html.
509 * PR#1582: mod_rewrite
510 mod_rewrite forms REQUEST_URI different than mod_cgi does
513 * PR#1677: mod_headers
514 mod_headers should allow mod_log_config-style formats in
519 mod_proxy to support persistent conns?
522 * PR#1803: mod_include
523 patches to mod_include to allow for file tests
526 * PR#1809: mod_auth-any
527 Suggestion for improving authentication modules and core source
528 code, problem with 401 and ErrorDocument
531 * PR#1855: mod_autoindex
532 More Control over autoindex layout
536 listing of proxy cache content
540 Allow modules to set user:group for execution.
543 * PR#2024: apache-api
544 adding auth_why to conn_rec
547 * PR#2073: mod_log-any
548 pipelined connections are not logged correctly
551 * PR#2074: mod_rewrite
552 mod_rewrite doesn't pass Proxy Throughput on internal subrequests
556 HTTP Server Rebuild Line Needs Changing for the better
559 * PR#2138: mod_status
560 mod_status always displays 256 possible connection slots
563 * PR#2221: documentation
564 Make online documentation search link back to my installation
568 Can not POST to ErrorDocument - Apache/1.3b6
572 patterns in ProxyRemote
575 * PR#2343: mod_status
576 Status module averages are for entire uptime
580 suexec for general access of user content?
584 Proposal for TimeZone directive
588 /server-info doesn't check for the virtual host to list the info
592 problem specifying ndbm library for build ?with autoconfigure
596 A small addition to rotatelogs.c to improve program functionality.
600 AllowOverride FileInfo is too coarse
604 TimeOut applies to output of CGI scripts
607 * PR#2512: mod_access
608 <IfDenied> directive wanted
612 CGI's for general use still have to be run as another user
617 Cache file names in Proxy module
621 [PATCH] User/Group for <Directory> and <Location> i.e. not only
622 in global and <Virtual>.
626 mailto tags and bundling bug report script
629 * PR#2772: mod_log-any
634 Support for System Resource Controller
638 When will Apache support P3P? Any Plans?
642 Feedback/Comment on APACI
646 Inclusion of RPM spec file in CVS/distributions
650 Propose that Apache recommend $UNIQUE_ID for all "session id"
655 suggestion: power up your Include directive :)
659 cannot limit some HTTP methods
662 * PR#3026: mod_autoindex
663 No way to change ReadmeName/HeaderName suffixes.
666 * PR#3143: apache-api
667 No module specific data hook for per-connection data
671 Configuration file in Japanese
674 * PR#3191: mod_negotiation
675 no way to set global quality-of-source (qs) coneg values
679 * PR#3430: mod_negotiation
680 Enhancement: MultiViews, Multi-Language Documents
684 Accessing URL through proxy server corrupts data.
687 * PR#3594: os-windows
688 Please add an Apache icon to the systray instead of a DOS window
692 Some anonymous FTP URLs ask for authentication
695 * PR#3654: mod_autoindex
696 BORDER=0 makes Icons look nicer (FancyIndexing)
700 New ErrorDocumentMatch directive
703 * PR#4180: os-windows
704 Alternative for win95 users
708 Need to be able to override shebang line to make CGI scripts
713 "Files" and "FilesMatch" regexp does not recognize bang as
717 * PR#4448: mod_log-any
718 Please allow CGI env variables (QUERY_STRING, ...) to be logged
722 * PR#4459: mod_include
723 Suggestion for better handling of Last-modified headers
727 mod_cgi prevents handling of OPTIONS requests
730 * PR#4520: mod_autoindex
731 mod_autoindex does not generate Last-Modified response headers
734 * PR#4658: os-windows
735 The output of CGI scripts appears in the window that apache
739 * PR#5713: os-windows
740 [PATCH] install as service with domain account
744 AllowOverride should have a 'CheckNone' and 'AllowNone' argument
745 instead of only 'None'
749 MIME types for MNG and JNG files need adding to mime.types and
750 the mime.types and magic files
751 Status: Waiting for IANA types to be defined
753 Other bugs that need fixing:
755 * MaxRequestsPerChild measures connections, not requests.
756 Until someone has a better way, we'll probably just rename it
757 "MaxConnectionsPerChild".
759 * Regex containers don't work in an intutive way
760 Status: No one has come up with an efficient way to fix this
761 behavior. Dean has suggested getting rid of regex containers
764 * SIGSEGV on Linux (glibc 2.1.2) isn't caught properly by a
765 sigwaiting thread. We need to work around this, perhaps unless
766 there is hope soon for a fixed glibc.
768 * orig_ct in the byterange/multipart handling may not be
769 needed. Apache 1.3 just never stashed "multipart" into
770 r->content_type. We should probably follow suit since the
771 byterange stuff doesn't want the rest of the code to see the
772 multipart content-type; the other code should still think it is
773 dealing with the <orig_ct> stuff.
774 Status: Greg volunteers to investigate (esp. since he was most
775 likely the one to break it :-)
777 Other features that need writing:
779 * Finish infrastructure in core for async MPMs
782 * TODO in source -- just do an egrep on "TODO" and see what's there
784 Documentation that needs writing:
785 * Mod_status docs are needed.
787 * The concept of MPMs, especially if we ship more than one MPM for a
790 * New directives in the various MPMs and appropriate links from
791 obsolete directives in core.html to the MPM documentation.
793 * Revise manual/stopping.html and the last part of
794 manual/misc/perf-tuning.html to take account of the MPMs.
797 Status: Ben Laurie has written some hooks documentation
798 (apache-2.0/htdocs/hooks.html)
800 * Changes since 1.3.9 can be more easily seen in the commitlog file
801 dev.apache.org:/home/cvs/CVSROOT/commitlogs/apache-2.0
802 which includes some of Roy's comments when the changes were
803 committed in rough change-sets by purpose. Note that the commitlog
804 does not show the contents of new files until later.
808 * Jon Travis's <jtravis@covalent.net> patch to deal with thread-safe
809 issues with inet_ntoa. See message <20001201163220.A12827@covalent.net>
810 Status: This is being set aside until the IPv6 work is finished
811 so that we know exactly what is required.
813 * Martin Sojka <msojka@gmx.de>'s patch to add error reporting for failed
814 htpasswd actions due to a full /tmp volume (other programs may have
819 * Mike Abbott's <mja@trudge.engr.sgi.com> patches to improve
821 Status: These were written for 1.3, and are awaiting a port to
824 * Jim Winstead's <jimw@trainedmonkey.com> patch to add CookieDomain and
825 other small mod_usertrack features
827 * Dan Rench's <drench@xnet.com> patch to add allow the errmsg and timefmt
828 of SSI's to be modified in the config file. Patch is available in
833 * What do we do about mod_proxy?
835 * Which MPMs will be included with Apache 2.0?