4 -----------------------------
8 - sanitize use of md5 throughout distribution.. Make a static
9 library for helping to develop modules that contains it and other
10 stuff. Also add sha-1 and ripemd-160 digest algorithms.
11 - once above is done. remove hacks from the secret@here module etc..
12 - remove prototype for gethostname in pam_access.c (Derrick)
13 - document PAM_INCOMPLETE changes
14 - verify that the PAM_INCOMPLETE interface is sensible. Can we
15 catch errors? should we permit item changing etc., between
16 pam_authenticate re-invocations?
17 - verify that the PAM_INCOMPLETE interface works (auth seems ok..)
18 - add PAM_INCOMPLETE support to modules (partially added to pam_pwdb)
20 - do we still need to remove openlog/closelog from modules..?
21 - auth and acct support in pam_cracklib, "yes, I know the password
22 you just typed was valid, I just don't think it was very strong..."
23 - add in the pam_cap and pam_netid modules
25 ====================================================================
26 Note, as of release 0.73, all checkins should be accompanied with a
27 Bug ID. The bug IDs relate to sourceforge IDs.. (Of course, nothing is
28 ever that simple. It turns out that at some point in Sourceforge's
29 history all of the bug ids got bumped by 100000, so pretty much if you
30 see a bug ID below that begins with a '1' and your attempted query
31 fails, try adding 100000 to the number and trying again. I believe
32 this only affects bugs before release 0.76.)
34 You can query the related bug description with the following URL:
36 http://sourceforge.net/tracker/index.php?func=detail&aid=XXXXXX&group_id=6663&atid=106663
38 Where you should replace XXXXXX with a bug-id.
40 For general documentation completion work, I'm doing it all with
41 respect to specific tasks. Open tasks are listed here:
43 http://sourceforge.net/pm/task.php?group_id=6663&group_project_id=2741&func=browse&set=open
45 If you have found a bug in Linux-PAM (including a documentation bug,
46 or a new feature request and/or patch), please consider filing such a
47 bug report - outstanding bugs are listed here:
49 http://sourceforge.net/tracker/?atid=106663&group_id=6663&func=browse
51 (to file another bug see the 'submit bug' button on that page).
54 There is now a second bug tracking system for Linux-PAM on BerliOS.
55 You can find the list of outstanding bugs on BerliOS here:
57 http://developer.berlios.de/bugs/?func=browse&group_id=2134&set=open
59 BerliOS Bugs are marked with (BerliOS #XXXX).
61 ====================================================================
63 0.78: please submit patches for this section with actual code/doc
66 * pam_unix: severe denial of service possible with this module since
67 it locked too aggressively. Bug report and testing help from Sascha
68 Loetz. (Bug 664290 - agmorgan)
69 * getlogin was spoofable: "/tmp/" and "/dev/" have the same number of
70 characters, so 'ln /dev/tty /tmp/tty1 ; bash < /tmp/tty1 ; logname'
71 attacks could potentially spoof pam_wheel with the 'trust' module
72 argument into granting access to a luser. Also, pam_unix gave
73 odd error messages in such a situation (logname != uid). This
74 problem was found by David Endler of iDefense.com (Bug 667584 -
76 * added my new DSA public key to the pgp.keys.asc file. Also included
77 a signed copy of my new public key (1024D/D41A6DF2) made with my old
79 * added "include" directive to config file syntax.
80 The whole idea is to create few "systemwide" pam configs and include
81 parts of them in application pam configs.
82 (patch by "Dmitry V. Levin" <ldv@altlinux.org>) (Bug 812567 - baggins).
83 * doc/modules/pam_mkhomedir.sgml: Remove wrong debug options
85 * pam_unix: Call password checking helper whenever the password field
86 contains only one character (Bug 1027903 - kukuk)
87 * libpam/pam_start.c: All service names should be files below /etc/pam.d
88 and nothing else. Forbid paths. (Bug 1027912 - kukuk)
89 * pam_cracklib: Fix error in distance algorithm in the 0.9 pam_cracklib
90 module (Bug 1010142 - toady)
91 * pam_userdb: applied patch from Paul Walmsley <paul@booyaka.com>
92 it now indicates whether encrypted or plaintext passwords are stored
93 in the database needed for pam_userdb (BerliOS - toady)
94 * pam_group: The module should also ignore PAM_REINITIALIZE_CRED to
95 avoid spurious errors (from Linux distributors - kukuk)
96 * pam_cracklib: Clear the entire options structure (from Linux
98 * pam_issue: We write a NUL to prompt_tmp[tot_size] later, so make sure
99 that the destination is part of the allocated block, make do_prompt
100 static (from Linux distributors - kukuk)
101 * ldconfig: Only run full ldconfig, if we don't install into a FAKEROOT
102 environment, else let ldconfig only create the symlinks correct
103 (from Linux distributors - kukuk)
104 * pam_unix/pam_pwdb: Use SIG_DFL instead of SIG_IGN for SIGCHLD
105 (from Linux distributors - kukuk)
106 * Add most of Steve Grubb's resource leak and other fixes (from
107 Linux distributors - kukuk)
108 * doc/Makefile: Don't include .cvsignore files in tar ball (kukuk)
109 * libpam_misc/misc_conv.c: Differentiate between Ctrl-D and
110 <Return> (Bug 1032604 - kukuk)
111 * Make.Rules.in: Add targets for installing man pages for modules
112 (from Linux distributors - kukuk)
113 * Add pam_xauth module (Bug 436440 - kukuk)
114 * Add pam_localuser module (Bug 436444 - kukuk)
115 * Add pam_succeed_if module (from Linux distributors - kukuk)
116 * configure.in: Fix check for libcrypt (Bug 417704 - kukuk)
117 * Add the "broken_shadow" argument to pam_unix, for ignoring errors
118 reading shadow information (from Linux distributors - kukuk)
119 * Add patches to make PAM modules reentrant (Bug 440107 - kukuk)
121 0.77: Mon Sep 23 10:25:42 PDT 2002
123 * documentation support for pdf files was not quite right -
124 installation was messed up.
125 * pam_wheel was too aggressive to grant access (in the case of the
126 'deny' option you want to pay attention to 'trust'). Fix from
127 Nalin (Bugs 476951, 476953 - agmorgan)
128 * account management support for: pam_shells, pam_listfile, pam_wheel
129 and pam_securetty (+ static module fix for pam_nologin). Patch from
130 redhat through Harald Welte (Bug 436435 - agmorgan).
131 * pam_wheel feature from Nalin - can use the module to provide wheel
132 access to non-root accounts. Also from Nalin, a bugfix related to
133 the primary group of the applicant is the 'wheel' group. (Bugs
134 476980, 476941 - agmorgan)
135 * pam_unix and pam_pwdb: by default turn off the SIGCHLD handler while
136 running the helper binary (patch from Nalin) added the "noreap"
137 module argument to both of these modules to turn off this new
138 default. Bugfix found by Silvan Minghetti for former module and
139 521314 checkin. (Bugs 476963, 521314 - agmorgan).
140 * updated CHANGELOG and configure.in for 0.77 work.
142 0.76: Mon Jul 8 21:44:59 PDT 2002
144 * pam_unix: fix for legacy crypt() support when the password entered
145 was long. (Bug 521314 - agmorgan).
146 * pam_access no longer include gethostname() prototype complaint from
147 David Lee (Bug 415423 - agmorgan).
148 * make pam_nologin more secure by default, added two new module
149 arguments etc. - acting on suggestion from Nico (Bug 419307 -
151 * link in libpam to libpam_misc - since the latter uses functions in
152 the former it makes some sort of sense to do this (although, in the
153 static library case, I remain to be convinced). (Bug 565470 -
155 * absorbed some of the proposed darwin (OS X) changes from Luke Howard
156 (of PADL software) - hopefully will get the rest (see Rob Braun's
157 534205) by 0.77 (Bug 491466 - agmorgan).
158 * README fix for pam_unix from Nalin (Bug 476971 - agmorgan).
159 * add support for building pdf files from the documentation - request
160 from 'lolive' (Bug 471377 - agmorgan).
161 * documented the equivalent '[..]' expressions for "required"
162 etc. Request from Ross Patterson (Bug 529078 - agmorgan).
163 * '[...]' parsing: document it and also fix it to support '\]' escape
164 sequence. Feature request from Russell Kliese (Bug 517064 -
166 * pam_rootok: compilation warning noted by Tony den Haan wrt no
167 prototype for strcmp() (Bug 557322 - agmorgan).
168 * documentation: (a few of mine in passing) and app documentation
169 suggestions regarding PAM environment variables and module
170 documentation changes regarding the conversation function from Jenn
171 Vesperman (Bug 527821, 527965 - agmorgan)
172 * documentation: pam_time.sgml typo fixed, pam_motd exists now,
173 correct Red Hat comment about config files (Bugs 554274, 554261,
175 * pam_limits: added '%' domain for maxlogins limiting, now '*' and @group
176 have the old meaning (every) and '%' the new one (all)
177 (Bug 533664 - baggins)
178 * pam_limits: put not so interesting log messages under debug arg
179 (Bug 533668 - baggins)
180 * pam_access: added the 'fieldsep=' argument (Bug 547051 - agmorgan),
181 made a PAM_RHOST of "" equivalent to NULL (Bug 547521 - agmorgan).
182 * pam_limits: keep well know behaviour of maxlogins default ('*') limit
183 (Bug 533664 - baggins)
184 * pam_unix: more from Nalin log password changes (Bug 517743 - agmorgan)
185 * pam_limits: make it use the priority value specified in config
186 (bug 530428 - baggins)
187 * pam_unix: removed broken code in password update code. Report from
188 Len Lattanzi (Bug 507379 - agmorgan)
189 * pam_mkhomedir: recurse directories. Patch from Nalin (Bug 476981 -
191 * pam_limits can handle negative priority limits now (which can apply
192 to the superuser too) - based on patch from Nalin. Also cleanup the
193 error handling that was very sloppy before. Also, courtesy of Berend
194 De Schouwe get the math right on login counting (Bug 476990, 476987,
196 * documentation: random typo fixes from Nalin and more stuff from me
197 (Bug 476949, Tasks 43507, 17426 - agmorgan)
198 * A Tru64 fix (given other stuff has already resolved this, it
199 actually just a comment actually) from 'Eddie'. (Bug 418450 -
201 * pam_handlers: BSD fix from Dag-Erling Smørgrav and Anton Berezin
202 (Bug 486063 - agmorgan)
203 * added the dynamic/* directory to the distribution. If you go in
204 there after building the rest of the tree, you'll make a pam.so
205 object that can be used by something like a java runtime with
206 dlopen. Its not very well tested - caveat emptor. (Bug 232194 -
208 * somehow pam_unix has started forcing the user prompt to be "login: ".
209 This is entirely inapropriate as it overrides PAM_USER_PROMPT. (Bug
211 * added a static module helper library object includes a few changes
212 to examples/xsh.c for testing purposes (added a simple shell wrapper
213 for running xsh with the sandbox libraries), and also modified the
214 pam_rhosts_auth module to use this new library. (Bug 490938, 409852
216 * pam_unix: fix 'likeauth' to kill off the memory leak once and for all.
217 (Bug 483959 - vorlon)
218 * pam_unix: restore handling of 'likeauth' argument to a known working
219 state; prettify AUTH_RETURN macro; remove redundant argv checks in
220 pam_sm_setcred() (Bugs 483959, 113596 - vorlon)
221 * pam_cracklib: another try at implementing similar() from Harald
222 Welte and Nalin (Bugs 436053, 476957 - agmorgan)
223 * pam_access: default access.conf file contained a type (console
224 instead of LOCAL) fix from Nalin (Bug 476934 - agmorgan)
225 * pam_unix: fixed bizarre memory leak pointed out by Fernando Trias
226 (Bug 483959 - agmorgan)
227 * misc string comparison length checking changes from Nalin. Modules
228 touched, pam_cracklib, pam_listfile, pam_unix, pam_wheel (Bug 476947 -
230 * pam_userdb: require that all of typed password matches that in
231 database report and fix from Vladimir Pastukhov. (Bug 484252 - agmorgan)
232 * pam_malloc: revived malloc debugging code, now tied to
233 --enable-memory-debug and added strdup() support (Bug 485454 - agmorgan)
234 * pam_tally: Nalin's fix for lastlog corruption (Bug 476985 - agmorgan)
235 * pam_rhosts: Nalin adds support for '+hostname', and zdd fix
236 compilation warning. (Bug 476986 - agmorgan)
237 * pam_motd: Nalin fixed compiler warning. (Bug 476938 - agmorgan)
238 * pam_pwdb: Solar Designer pointed out that there was a problem with
239 the compatibility support for md5 password hashing. (Bug 460717,
241 * pam_issue: Nalin found segfaulting problems if the PAM_USER_PROMPT
242 is unset, found some similar problems with assumptions about
243 realloc. (Bug 476983 - agmorgan)
244 * pam_env: 'weichangyang of hotmail' pointed out a wild string with no
245 valid '\0' was leading to problems with sshd and suggested fix (Bug
247 * MANDIR cleanup. It defaults to /usr/share/man, but can be overridden
248 using the --enable-mandir ./configure option, similarly for DOCDIR
249 from Nalin (Bug 476940 - agmorgan)
250 * pam_filter cleanup (including moving the filter directory) Nalin
251 and Harald Welte (Bugs 436057, 476970 - agmorgan)
252 * db3 is now recognized as a libdb candidate (Bug 435764 - agmorgan)
253 * more changes (extracted from redhat version) courtesy of
254 Harald Welte (Bugs pam_limits=436061, pam_lastlog=436060,
255 pam_mkhomedir/pam_env=435991 - agmorgan)
256 * fix for legacy behavior of pam_setcred and pam_close_session in
257 the case that pam_authenticate and pam_open_session hadn't been
258 called - bug report from Seongwan Park. (Bug 468724 - agmorgan)
259 * some BSD updates and fixes from Mark Murray - including a slightly
260 more robust conversation function and some minimization of gcc
261 warnings. (Bugs 449203,463984 - agmorgan)
262 * verified that the setcred stack didn't suffer from the bug I was
263 nervous about, add a new module pam_debug to help me test this.
264 fixed a libpam/pam_dispatch.c instrumentation line that I tripped
265 over when testing. Also restructured pam_warn to help here (Bug
267 * pam_unix/support.c: sample use of reentrant NSS function. Not yet active,
268 because modules do not include _pam_aconf_h! (Bug 440107 - vorlon)
269 * doc/Makefile changes - use $(mandir) [courtesy Harald Welte] (Bug
270 435760) and add some rules to make/delete the draft rfc I've been
271 working on (Task 17426 - agmorgan)
272 * pam_modules.sgml: sourceforge has changed its CVS viewing software
273 (Bug 460491 - agmorgan)
274 * pam_unix_passwd: got rid of an annoying warning (Bug 461089 - agmorgan)
275 * configure.in, _pam_aconf.h.in: set the stage for fully reentrant PAM
276 modules, with some infrastructure to detect getxxbyxx_r() functions
277 (Bug 440107 - vorlon)
278 * pam_unix: removed superfluous use of static variables in md5 and bigcrypt
279 routines, bringing us a step closer to thread-safeness. Eliminated
280 some variable indirection along the way. (Bug 440107 - vorlon)
281 * pam_tally: remove #include of stdlib.h, which isn't needed by anything
282 found in this module. Can be readded if we find a real need for it at
283 a later date. (Bug 436432 - vorlon)
284 * pam_tally: added an #include (was it really needed?) and made the
285 pam_tally app install (with more pretty printing and a corrected
286 Makefile dependency) motivated by a (red hat diff) courtesy of Harald
287 Welte (Bug 436432 - agmorgan)
288 * configure.in changes to help support non-Linux environments courtesy
289 of Scott T. Emery (Bug 422563 - agmorgan)
290 * made a pam_cracklib enhancement to interpret -ve limits in a
291 sensible fashion contributed by Werner Puschitz (Bug 413162 -
293 * another fix for the latest number of rlimits available to pam_limits
294 (Bug 424060 - agmorgan)
295 * removed stale link from pam_pwdb documentation (Bug 433460 - agmorgan)
296 * pam_appl.sgml change - more discussion of choosing a service name
297 (Bug 417512 - agmorgan)
298 * more specific linking requirements for -lndbm for pam_userdb - from
299 David Lee (Bug 417339 - agmorgan)
300 * a large number of small changes to make AIX support better (Bug
302 * $(MAKE) instead of 'make' - from Scott T. Emery (Bug 422144 -
304 * c++ header fixes for pam_misc.h and pam_client.h - from Alexandre
305 Sagala (Bug 420270 - agmorgan)
306 * pam_access fixes - looks out for trailing '.' - from Carlo Marcelo
307 Arenas Belon (Bug 419631 - agmorgan)
308 * don't zero out password strings during pam_unix's password changing
309 function (Bug 419803 - vorlon)
310 * propagate some definitions to the _pam_aconf.h file - from David Lee
311 (Bug 415419 - agmorgan)
312 * solaris GCC OS_CFLAGS change from David Lee (Bug 415412 - agmorgan)
313 * added a comment to this CHANGELOG to explain why most of the bugids
314 used below appear not to be known to sourceforge [try adding 100000
315 to the bugid number.] (Bug 414943 - agmorgan)
316 * bumped version numbers and also added support for SONAME defines
317 that appear not to have survived the great autoconf experiment (Bug
320 0.75: Sat Apr 7 23:10:50 PDT 2001
324 This release contains backwardly incompatible changes to
325 libpam. Prior versions were buggy - see bugfix for Bug 129775.
329 * made 0.75 release (Bug 414665 - agmorgan)
330 * pam_pwdb has been removed from the suggested pam.conf template. I've
331 replaced it with pam_unix. (Bug 227565 - agmorgan)
332 * pam_limits - Richard M. Yumul reported that "<domain> -" didn't
333 work, first fix suggested by Werner Puschitz (Bug 404953 - agmorgan)
334 * Nicolay Pelov suggested a simple fix for freebsd support (Bug 407282
336 * Michel D'HOOGE submitted documentation fixes (Bug 408961 - agmorgan)
337 * fix for module linking directions (Bug 133545 - agmorgan)
338 * fix for glibc-2.2.2 compilation of pam_issue (Bug 133542 - agmorgan)
339 * fix pam_userdb to make and link both .o files it needs - converse()
340 wasn't being linked! (Bug 132880 - agmorgan)
341 * added some sys-admin documentation for the pam_tally module (Bug
343 * added a link to module examples from the module writers doc (Bug
345 * fixed a small security hole (more of a user confusion issue) with
346 the unix and pwdb password helper binaries. The beef is described in
347 the bug report, but no uid change was possible so no-one should
348 think they need to issue a security bulletin over this one! (Bug
350 * pam_lastlog needs to be linked with -lutil, also removed ambiguity
351 from sysadmin guide regarding this module being a 'session' module
352 (Bug 131549 - agmorgan).
353 * pam_cracklib needs to be linked with -lcrypt (old password checking)
354 (Bug 131601 - agmorgan).
355 * fixes for static library builds and also the examples when linked
356 with the debugging build of the libraries. (Bug 131783 - agmorgan)
357 * fixed URL for original RFC to a cached kernel.org file. (Bug 131503
359 * quoted the $CRACKLIB_DICTPATH test in configure.in (Bug 130130 -
361 * improved handling of the setcred/close_session and update chauthtok
362 stack. *Warning* This is a backwardly incompatable change, but 'more
363 sane' than before. (Bug 129775 - agmorgan)
364 * bumped the version number, and added some code to assist in making
365 documentation releases (Bug 129644 - agmorgan).
367 0.74: Sun Jan 21 22:36:08 PST 2001
369 * made 0.74 release (Bug 129642 - agmorgan)
370 * libpam - cleaned up a few non-static functions to be static and added
371 support for libpam to enforce things like pam_[gs]et_data() and
372 AUTHTOK rules for using the API. Also documented pam_[gs]et_item()
373 a little better including return codes (Bugs 129027, 128576 -
375 * pam_access - fixed the non-default config file option (Bug 127561 -
377 * pam.8 manual page clarified with respect to the default location for
378 finding modules, also added some text describing the [...] control
379 syntax. (Bug 127625 - agmorgan)
380 * md5.h ia64 fixes for pam_unix and pam_pwdb (Bug 127700 - agmorgan)
381 * removed requirement for c++ from the configure{.in,} files (Bug
383 * removed subdirectories from man page redirections (124396 - baggins)
384 * per David Lee, fixed non-POSIX shell command in modules/pam_filter/Makefile
385 (Bug 126440 - vorlon)
386 * modify format of pam_unix log messages to include service name
387 (Bug 126423 - vorlon)
388 * prevent pam_unix from logging unknown usernames (Bug 126431 - vorlon)
389 * changed format of pam_unix 'authentication failure' log messages to make
390 them clearer and more consistent (Bug 126036 - vorlon)
391 * improved portability of pam_unix by eliminating Linux-specific utmp
392 defines in PAM_getlogin() (Bug 125704 - vorlon)
393 * removed static variables from pam_tally (Bug 117434 - agmorgan)
394 * added copyright message to pam_access module from original logdaemon
395 sources (Bug 125022 - agmorgan)
396 * configure.in - removed the GCC -Wtraditional flag (Bug 124923 - agmorgan)
397 * pam_mail - use PAM_PATH_MAILDIR as the location of mail spool
398 (Bug 124397 - baggins)
399 * _pam_aconf.h.in, configure.in - added PAM_PATH_MAILDIR set via
400 --with-mailspool=dir option (default is _PAM_MAILDIR if defined
401 in paths.h otherwise /var/spool/mail (Bug 124397 - baggins)
402 * removed unnecessary CVS Log tags from all over the source
403 (Bug 124391 - baggins)
404 * pam_tally - check for PAM_TTY if PAM_RHOST is not set when writing
405 to faillog (Bug 124394 - baggins)
406 * use O_NOFOLLOW if available when opening debug log (Bug 124385 - baggins)
407 * pam_cracklib - removed comments about pam_unix not working with
408 pam_cracklib, added information about use_authtok parameter
409 (Bug 124388 - baggins)
410 * pam_userdb - fixed wrong definition of struct pam_module (was pam_wheel)
411 (Bug 124386 - baggins)
412 * fixed example/Makefile include path (Bug 124187, 127563(?) - agmorgan)
413 * pam_userdb compiles on RH5x. Also removed circular dependency on
414 configure.in. Also bumped revision number to 0.74. (Bug 124136 -
417 0.73: Sat Dec 2 00:04:04 PST 2000
419 * updated documentaion revisions and added 'make release' support
420 to the top level Makefile (Bug 124132 - agmorgan).
421 * documented Qmail support in pam_mail (Bug 109219 - baggins)
422 * add change_uid option to pam_limits, and set real uid only if
423 this option is present (Bug 124062 - baggins)
424 * pam_limits - set real uid to the user for who we set limits.
425 (Bug 123972 - baggins)
426 * removed static variables from pam_limits (thread safe now). (Bug
428 * removed static variable from pam_wheel (module should be thread safe
429 now). (Bug 112906 - agmorgan)
430 * added support for '/' symbols in pam_time and pam_group config files
431 (support for modern terminal devices). Fixed infinite loop problem
432 with '\\[^\n]' in these files. (Bug 116076 - agmorgan)
433 * avoid potential SIGPIPE when writing to helper binaries with (Bug
435 * replaced bogus logic in the pam_cracklib module for determining if
436 the replacement is too similar to the old password (Bug 115055 -
438 * added accessconf=<filename> feature to pam_access - request from
439 Aldrin Martoq and Meelis Roos (Bugs 111927,117240 - agmorgan)
440 * fix for pam_limit module not dealing with all limits Adam J. Richter
441 (Bug 119554 - agmorgan)
442 * comment fix describing fail_delay callback in _pam_types.h (Bug
444 * "likeauth" fix for pam_unix and pam_pwdb which (Bug 113596 - agmorgan)
445 * fix for pam_unix (support.c) to avoid segfault with NULL password
446 (Bug 113238 - vorlon)
447 * fix to pam_unix_passwd: try repeatedly to get a lock on the password
448 file, instead of failing immediately (Bug 108845 - fix vorlon)
449 * fix to pam_shells: logged information was not formatted correctly
450 (extra comma) (Bug 111491 - fix vorlon)
451 * fix for C++ application support (Bug 111645 - fix agmorgan)
452 * fix for typo in pam_client.h (Bug 111648 - fix agmorgan)
453 * removal of -lpam from pam_mkhomedir Makefile (Bug 116380 - fix agmorgan)
454 * autoconf support [Task ID 15788, Bug ID 108297 - agmorgan with help!]
455 - bugfix for libpamc.h include file [Bug ID 117476 - agmorgan]
456 - bugfix for pam_filter.h inclusion [Bug ID 117474 - agmorgan]
458 0.72: Mon Dec 13 22:41:11 PST 1999
460 * patches from Debian (Ben Collins): pam_ftp supports event driven
461 conversations now; pwdb_chkpwd cleanup; pam_warn static compile fix;
462 user_db compiler warnings removed; debian defs file; pam_mail can
463 now be used as a session module
464 * ndbm compilation option for user_db module (fix explained by Richard Khoo)
465 * pam_cracklib bug fix
466 * packaging fixes & build from scratch stuff (Konst Bulatnikov & Frodo
468 * -ldl appended to the libpam.so compilation make rule. (Charles Seeger)
469 * Red Hat security patch for pam_pwdb forwarded by Debian! (Ben
470 Collins. Fix provided by Andrey as it caught the problem earlier in the
472 * heuristic to prevent leaking filedescriptors to an agent. [This needs
473 to be better supported perhaps by an additional libpamc API function?]
474 * pam_userdb segfault fix from (Ben Collins)
475 * PAM draft spec extras added at request of 'sen_ml'
477 0.71: Sun Nov 7 20:21:19 PST 1999
479 * added -lc to linker pass for pam_nologin module (glibc is weird).
480 * various header changes to lower the number of warnings on glibc
481 systems (Dan Yefimov)
482 * merged a bunch of Debian fixes/patches/documentation (Ben Collins)
483 things touched: libpam (minor); doc/modules/pam_unix.sgml; pam_env
484 (plus docs); pam_mkhomedir (new module for new home directories on
485 the fly...); pam_motd (new module); pam_limits (adjust to match
486 docs); pam_issue (new module + doc) [Some of these were also
487 submitted by Thorsten Kukuk]
488 * small hack to lower the number of warnings that pam_client.h was
490 * debian and SuSE apparently can use the pam_ftp module, so
491 removed the obsolete comment about this from the docs. (Thorsten
494 0.70: Fri Oct 8 22:05:30 PDT 1999
496 * bug fix for parsing of value=action tokens in libpam/pam_misc.c was
497 segfaulting (Jan Rekorajski and independently Matthew Melvin)
498 * numerous fixes from Thorsten Kukuk (icluding much needed fixes for
499 bitrot in modules and some documentation) that got included in SuSE 6.2.
500 * reentrancy issues in pam_unix and pam_cracklib resolved (Jan Rekorajski)
501 * added hosts_equiv_rootok module option to pam_rhosts module (Tim Berger)
502 * added comment about 'expose_account' module argument to admin and
503 module writers' docs (request from Michael K Johnson).
504 * myriad of bug fixes for libpamc - library now built by default and
505 works with the biomouse fingerprint scanner agent/module
506 (distributed separately).
508 0.69: Sun Aug 1 20:25:37 PDT 1999
510 * c++ header #ifdef'ing for pam_appl.h (Tuomo Pyhala)
511 * added pam_userdb module (Cristian Gafton)
512 * minor documentation changes
513 * added in revised pam_client library (libpamc). Not installed by
514 default yet, since the example agent/module combo is not very secure.
515 * glibc fixes (Thorsten Kukuk, Adam J. Richter)
517 0.68: Sun Jul 4 23:04:13 PDT 1999
519 * completely new pam_unix module from Jan Rekorajski and Stephen Langasek
520 * Jan Rekorajski pam_mail - support for Maildir format mailboxes
521 * Jan Rekorajski pam_cracklib - support for old password comparison
522 * Jan Rekorajski bug fix for pam_pwdb setcred reusing auth retval
523 * Andrey's pam_tally patch (lstat -> fstat)
524 * Robert Milkowski's additional pam_tally patches to **change format of
525 /var/log/faillog** to one from shadow-utils, add new option "per_user"
526 for pam_tally module, failure time logging, support for fail_line
527 field, and support for fail_locktime field with new option
529 * pam_tally: clean up the tally application too.
530 * Marcin Korzonek added process priority settings to pam_limits (bonus
531 points for adding to documentation!)
532 * Andrey's pam_pwdb patch (cleanup + md5 endian fubar fix)
533 * more binary prompt preparations (make misc conv more compatible with spec)
534 * modified callback hook for fail delay to be more useful with event
535 driven applications (changed function prototype - suspect no one
536 will notice). Documented this in app developer guide.
537 * documentation for pam_access from Tim Berger
538 * syntax fixes for the documentation - a long time since I've built it :*(
539 added some more names to the CREDITS file.
541 0.67: Sat Jun 19 14:01:24 PDT 1999
543 * [dropped libpam_client - libpamc will be in the next release and
544 conforms to the developing spec in doc/specs/draft-morgan-pam.raw.
545 Sorry if you are keeping a PAM tree in CVS. CVS is a pain for
546 directories, but this directory was actually not referenced by
547 anything so the disruption should be light.]
548 * updates to pam_tally from Tim
549 * multiple updates from Stephen Langasek to pam_unix
550 * pam_filter had some trouble compiling (bug report from Sridhar)
551 * pam_wheel now attempts to identify the wheel group for the local
552 system instead of blindly assuming it is gid=0. In the case that
553 there is no "wheel" group, we default to assuming gid=0 is what was
554 meant - former behavior. (courtesy of Sridhar)
555 * NIS+ changes to pam_unix module from Dmitry O Panov
556 * hopefully, a fix for redefinition of LOG_AUTHPRIV (bug report Luke
557 Kenneth Casson Leighton)
558 * fix for minor typo in pam_wheel documentation (Jacek Kopecky)
559 * slightly more explanation of the [x=y] pam.conf syntax in the sys
562 0.66: Mon Dec 28 20:22:23 PST 1998 <morgan@linux.kernel.org>
564 * Started using cvs to keep track of changes to Linux-PAM. This will
565 likely break some of the automated building stuff (RPMs etc..).
566 * security bug fix to pam_unix and pam_tally from Andrey.
567 * modules make file is now more automatic. It should be possible to
568 unpack an external module in the modules directory and have it automatically
569 added to the build process. Also added a modules/download-all script
570 that will make such downloading easier. I'm happy to receive patches to
571 this file, informing the distribution of places from which to enrich itself.
572 * removed pam_system_log stuff. Thought about it long and hard: a
573 bad idea. If libc cannot guarantee a thread safe syslog, it needs
574 to be fixed and compatibility with other PAM libraries was
575 unnecessarily strained.
576 * SAG documentation changes: Seth Chaiklin
577 * rhosts: problems with NIS lookup failures with the root-uid check.
578 As a work-around, I've partially eliminated the need for the lookup
579 by supplying two new arguments: no_uid_check, superuser=<username>.
580 As a general rule this is more pluggable, since this module might be
581 used as an authentication scheme for a network service that does not
582 need root privilege...
583 * authenticate retval -> setcred for pam_pwdb (likeauth arg).
584 * pam_pwdb event driven support
585 * non openlog pam_listfile logging
586 * BUGFIX: close filedescriptor in pam_group and pam_time (Emmanuel Galanos)
587 * Chris Adams' mailhash change for pam_mail module
588 * fixed malloc failure check in pam_handlers.c (follow up to comment
590 * update to _pam_compat.h (Brad M. Garcia)
591 * support static modules in libpam again (Brad M. Garcia)
592 * libpam/pam_misc.c for egcs to grok the code (Brad M. Garcia)
593 * added a solaris-2.5.1 defs file (revived by Derrick J Brashear)
594 * pam_listfile logs failed attempts
595 * added a comment (Michael K Johnson pointed it out) about sgml2latex
596 having a new syntax. I'll make it the change real when I upgrade...
597 * a little more text to the RFC, spelling fix from William J Buffam.
598 * minor changes to pam_securetty to accommodate event driven support.
600 0.65: Sun Apr 5 22:29:09 PDT 1998 <morgan@linux.kernel.org>
602 * added event driven programming extensions to libpam
603 - added PAM_INCOMPLETE handling to libpam/pam_dispatch.c
604 - added PAM_CONV_AGAIN which is a new conversation response that
605 should be mapped to PAM_INCOMPLETE by the module.
606 - ensured that the pam_get_user() function can resume
607 - changes to pam_strerror to accommodate above return codes
608 - clean up _pam_former_state at pam_end()
609 - ensured that former state is correctly initialized
610 - added resumption tests to pam_authenticate(), pam_chauthtok()
611 - added PAM_FAIL_DELAY item for pausing on failure
613 * improved _pam_macros.h so that macros can be used as single commands
616 * reimplemented logging to avoid bad interactions with libc. Added
617 new functions, pam_[,v]system_log() to libpam's API. A programmer
618 can check for this function's availablility by checking if
619 HAVE_PAM_SYSTEM_LOG is #defined.
621 * removed the reduce conflict from pam_conv1 creation -- I can sleep
624 * made building of static and dynamic libpam separate. This is
625 towards making it possible to build both under Solaris (for Derrick)
627 * made USE_CRACKLIB a condition in unix module (Luke Kenneth Casson Leighton)
629 * automated (quiet) config installation (Andrey)
631 0.64: Thu Feb 19 23:30:24 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
633 * miscellaneous patches for building under Solaris (Derrick J Brashear)
635 * removed STATIC support from a number of module Makefiles. Notably,
636 these modules are those that use libpwdb and caused difficulties
637 satisfying the build process. (Please submit patches to fix this...;)
639 * reomved the union for binary packet conversations from
640 (_pam_types.h). This is now completely implemented in libpam_client.
642 * Andrey's patch for working environment variable handling in
645 * made the libpam_misc conversation function a bit more flexible with
646 respect to binary conversations.
648 * added top level define (DEBUG_REL) for compiling in the form of
649 a debugging release. I use this on a Red Hat 4.2 system with little
650 chance of crashing the system as a whole. (Andrey has another
651 implementation of this -- with a spec file to match..)
653 0.63: Wed Jan 28 22:55:30 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
655 * added libpam_client "convention" library. This makes explicit the
656 use of PAM_BINARY_PROMPT. It is a first cut, so don't take it too
657 seriously yet. Comments/suggestions for improvements are very
658 welcome. Note, this library does not compile by default. It will
659 be enabled when it is judged stable. The library comes with two
660 module/agent pairs and can be used with ssh using a patch available
661 from my pre-release directory [where you got this file.]
663 * backward compatibility patch for libpam/pam_handlers.c (PAM_IGNORE
664 was working with neither "requistie" nor "required") and a DEBUG'ing
665 compile time bug with pam_dispatch.c (Savochkin Andrey Vladimirovich)
667 * minor Makefile change from (Savochkin Andrey Vladimirovich)
669 * added pam_afsauth, pam_afspass, pam_restrict, and pam_syslog hooks
672 * pam_access use of uname(2) problematic (security problem
673 highlighted by Olaf Kirch).
675 * pam_listfile went a bit crazy reading group membersips (problem
676 highlighted by Olaf Kirch and patched independently by Cristian
677 Gafton and Savochkin Andrey Vladimirovich)
679 * compatibility hooks for solaris and hpux (Derrick J Brashear)
681 * 64 bit Linux/alpha bug fixed in pam_rhosts (Andrew D. Isaacson)
683 0.62: Wed Jan 14 14:10:55 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
685 * Derrick J Brashear's patches: adds the HP stuff missed in the first
686 patch; adds SunOS support; adds support for the Solaris native ld
687 instead of requiring gnu ld.
689 * last line of .rhosts file need not contain a newline. (Bug reported by
692 0.61: Thu Jan 8 22:57:44 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
694 * complete rewrite of the "control flag" logic. Formerly, we were
695 limited to four flags: requisite, required, sufficient, optional.
696 We can now use these keywords _and_ a great deal more besides.
697 The extra logic was inspired by Vipin Samar, a preliminary patch was
698 written by Andy Berkheimer, but I "had some ideas of my own" and
699 that's what I've actually included. The basic idea is to allow the
700 admin to custom build a control flag with a series of token=value
701 pairs inside square brackets. Eg., '[default=die success=ok]' which
702 is pretty close to a synonym for 'requisite'. I'll try to document it
703 better in the sys-admin guide but I'm pretty sure it is a change for
704 the better.... If what is in the sys-admin guide is not good enough
705 for you, just take a look at the source for libpam ;^)
707 0.59: Thu Jan 8 22:27:22 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
709 * better handling of empty lines in .rhosts file. (Formerly, we asked
710 the nameserver about them!) Fix from Hugh Daschbach.
712 * _broke_some_binary_compatibility_ with previous versions to become
713 compliant with X/Open's XSSO spec. Specifically, this has been
714 by changing the prototype for pam_strerror().
716 * altered the convention for the conversation mechanism to agree
717 with that of Sun. (number of responses 'now=' number of messages
718 with help from Cristian for finding a bug.. Cristian also found a
719 nasty speradic segfault bug -- Thanks!)
721 * added NIS+ support to pam_unix_*
723 * fixed a "regular file checking" problem with the ~/.rhosts sanity
724 check. Added "privategroup" option to permit group write permission
725 on the ~/.rhosts file in the case that the group owner has the same
726 name as the authenticating user. :*) "promiscuous" and "suppress"
729 * added glibc compatibility to pam_rhosts_auth (protected __USE_MISC
730 with #ifndef since my libc already defines it!).
732 * Security fix from Savochkin Andrey Vladimirovich with suggested
733 modification from Olaf Seibert.
735 * preC contains mostly code clean-ups and a number of changes to
740 * pam_getenvlist() has a more robust definition (XSSO) than was previously
741 thought. It would seem that we no longer need pam_misc_copy_env()
742 which was there to provide the robustness that pam_getenvlist()
745 Accordingly, I have REMOVED the prototype from libpam_misc. (The
746 function, however, will remain in the library as a wrapper for
747 legacy apps, but will likely be removed from libpam_misc-1.0.) PLEASE
748 FIX YOUR APPS *BEFORE* WE GET THERE!
750 * Alexy Nogin reported garbage output from pam_env in the case of
751 a non-existent environment variable.
753 * 'fixed' pwdb compilation for pam_wheel. Not very cleanly
754 done.. Mmmm. Should really clean up the entire source tree...
756 * added prototypes for mapping functions
760 various constants have had there names changed. Numerical values have
761 been retained but be aware some source old modules/applications will
762 need to be fixed before recompilation.
766 * appended documentation to README for pam_rhosts module (Nicolai
769 * verified X/Open compatibility of header files - note, where we differ
770 it is at the level of compilation warnings and the use of 'const char *'
771 instead of 'char *'. Previously, Sun(X/open) have revised their spec
772 to be more 'const'-ervative in the light of comments from Linux-PAM
775 * Ooops! PAM_AUTHTOKEN_REQD should have been PAM_NEW_AUTHTOK_REQD.
777 changed: pam_pwdb(pam_unix_acct) (also bug fix for
778 _shadow_acct_mgmt_exp() return value), pam_stress,
779 libpam/pam_dispatch, blank, xsh.
781 * New: PAM_AUTHTOK_EXPIRED - password has expired.
783 * Ooops! PAM_CRED_ESTABLISH (etc.) should have been PAM_ESTABLISH_CRED
784 etc... (changed - this may break some people's modules - PLEASE TAKE
786 changed: pam_group, pam_mail, blank, xsh; module and appl
787 docs, pam_setcred manual page.
789 * renamed internal _pam_handle structure to be pam_handle as per XSSO.
791 * added PAM_RADIO_TYPE (for multiple choice input method). Also
792 added PAM_BINARY_{MSG,PROMPT} (for interaction out of sight of user
793 - this could be used for RSA type authentication but is currently
794 just there for experimental purposes). The _BINARY_ types are now
795 usable with hooks in the libpam_misc conversation function. Still
796 have to add PAM_RADIO_TYPE.
798 * added pam_access module (Alexei Nogin)
800 * added documentation for pam_lastlog. Also modified the module to
801 not (by default) print "welcome to your new account" when it cannot
802 find a utmp entry for the user (you can turn this on with the
805 * small correction to the pam_fail_delay manual page. Either the appl or
806 the modules header file will prototype this function.
808 * added "bigcrypt" (DEC's C2) algorithm(0) to pam_pwdb. (Andy Phillips)
810 * *BSD tweaking for various #include's etc. (pam_lastlog, pam_rhosts,
811 pam_wheel, libpam/pam_handlers). (Michael Smith)
813 * added configuration directory $SCONFIGED for module specific
816 * added two new "linked" man pages (pam.conf(8) and pam.d(8))
818 * included a reasonable default for /etc/pam.conf (which can be
819 translated to /etc/pam.d/* files with the pam_conv1 binary)
821 * fixed the names of the new configuration files in
822 conf/pam_conv1/pam_conv.y
826 * pam_lastlog fixed to handle UID in virgin part of /var/log/lastlog
827 (bug report from Ronald Wahl).
829 * grammar fix in pam_cracklib
831 * segfault avoided in pam_pwdb (getting user). Updating of passwords
832 that are directed to a "new" database are more robust now (bug noted
833 by Michael K. Johnson). Added "unix" module argument for migrating
834 passwords from another database to /etc/passwd. (documentation
835 updated). Removed "bad username []" warning for empty passwords -
836 on again if you supply the 'debug' module argument.
838 * ctrl-D respected in conversation function (libpam_misc)
840 * Removed -DPAM_FAIL_DELAY_ON from top-level Makefile. Nothing in
841 the distribution uses it. I guess this change happened a while
842 back, basically I'm trying to make the module parts of the
843 distribution "source compatible" with the RFC definition of PAM.
844 This implementation of PAM is a superset of that definition. I have
845 added the following symbols to the Linux-PAM header files:
847 PAM_DATA_SILENT (see _pam_types.h)
848 HAVE_PAM_FAIL_DELAY (see _pam_types.h)
849 PAM_DATA_REPLACE (see _pam_modules.h)
851 Any module (or application) that wants to utilize these features,
852 should check (#ifdef) for these tokens before using the associated
853 functionality. (Credit to Michael K. Johnson for pointing out my
854 earlier omission: not documenting this change :*)
856 * first stab at making modules more independent of full library
857 source. Modules converted:
863 * pam_env.c: #include <errno.h> added to ease GNU libc use. (Michael
866 * pam_unix_passwd fixes to shadow aging code (Eliot Frank)
868 * added README for pam_tally
870 0.57: Fri Apr 4 23:00:45 PST 1997 Andrew Morgan <morgan@parc.power.net>
872 * added "nodelay" argument to pam_pwdb. This can be used to turn off
873 the call to pam_fail_delay that takes effect when the user fails to
874 authenticate themself.
876 * added "suppress" argument to pam_rhosts_auth module. This will stop
877 printing the "rlogin failure message" when the user does not have a
880 * Extra fixes for FAKEROOT in Makefiles (Savochkin Andrey
883 * pam_tally added to tree courtesy of Tim Baverstock
885 * pam_rhosts_auth was failing to read NFS mounted .rhosts
886 files. (Fixed by Peter Allgeyer). Refixed and further enhanced
887 (netgroups) by Nicolai Langfeldt. [Credit also to G.Wilford for some
888 changes that were not actually included..]
890 * optional (#ifdef PAM_READ_BOTH_CONFS) support for parsing of pam.d/
891 AND pam.conf files (Elliot Lee).
893 * Added (and signed) Cristian's PGP key. (I've never met him, but I am
894 convinced the key belongs to the guy that is making the PAM rpms and
895 also producing libpwdb. Please note, I will not be signing anyone
896 else's key without a personal introduction..)
898 * fixed erroneous syslog warning in pam_listfile (Savochkin Andrey
899 Vladimirovich, whole file reformatted by Cristian)
901 * modified pam_securetty to return PAM_IGNORE in the case that the user's
902 name is not known to the system (was previously, PAM_USER_UNKNOWN). The
903 Rationale is that pam_securetty's sole purpose is to prevent superuser
904 login anywhere other than at the console. It is not its concern that the
905 user is unknown - only that they are _not_ root. Returning
906 PAM_IGNORE, however, insures that the pam_securetty can never be used to
907 "authenticate" a non-existent user. (Cristian Gafton with bug report from
910 * Modified pam_nologin to display the no-login message when the user
911 is not known. The return value in this case is still PAM_USER_UNKNOWN.
912 (Bug report from Cristian Gafton)
914 * Added NEED_LCKPWD for pam_unix/ This is used to define the locking
915 functions and should only be turned on if you don't have them in
918 * tidied up pam_lastlog and pam_pwdb: removed function that was never used.
920 * Note for package maintainers: I have added $(FAKEROOT) to the list of
921 environment variables. This should help greatly when you build PAM
922 in a subdirectory. I've gone through the tree and tried to make
923 everything compatible with it.
925 * added pam_env (courtesy of Dave Kinchlea)
927 * removed pam_passwd+ from the tree. It has not been maintained in a
928 long time and running a shell script was basically insecure. I've
929 indicated where you can pick up the source if you want it.
931 * #define HAVE_PAM_FAIL_DELAY . Applications can conditionally compile
932 with this if they want to see if the facility is available. It is
933 now always available. (corresponding compilation cleanups..)
935 * _pam_sanitize() added to pam_misc. It purges the PAM_AUTHTOK and
936 PAM_OLDAUTHTOK items. (calls replaced in pam_auth and pam_password)
938 * pam_rhosts now knows about the '+' entry. Since I think this is a
939 dangerous thing, I have required that the sysadmin supply the
940 "promiscuous" flag for it in the corresponding configuration file
943 * FULL_LINUX_PAM_SOURCE_TREE exported from the top level make file.
944 If you want to build a module, you can test for this to determine if
945 it should take its directions from above or supply default locations
946 for installation. Etc.
948 0.56: Sat Feb 15 12:21:01 PST 1997 <morgan@parc.power.net>
950 * pam_handlers.c can now interpret the pam.d/ service config tree:
951 - if /etc/pam.d/ exists /etc/pam.conf is IGNORED
952 (otherwise /etc/pam.conf is treated as before)
954 . config files are named (in lower case) by service-name
955 . config files have same syntax as /etc/pam.conf except
956 that the "service-name" field is not present. (there
957 are thus three manditory fields (and arguments are
960 module-type control-flag module-path optional-args...
964 * included conf/pam_conv1 for converting pam.conf to a pam.d/ version
965 1.0 directory tree. This program reads a pam.conf file on the
966 standard input stream and creates ./pam.d/ (in the local directory)
967 and fills it with ./pam.d/"service-name" files.
969 *> Note: It will fail if ./pam.d/ already exists.
971 PLEASE REPORT ANY BUGS WITH THIS CONVERSION PROGRAM... It currently
972 cannot retain comments from the old conf file, so take care to do this
973 by hand. Also, please email me with the fix that makes the
974 shift/reduce conflict go away...
976 * Added default module path to libpam for modules (see pam_handlers.c)
977 it makes use of Makfile defined symbol: DEFAULT_MODULE_PATH which is
978 inhereted from the defs/* variable $(SECUREDIR). Removed module
979 paths from the sample pam.conf file as they are no longer needed.
981 * pam_pwdb can now verify read protected passwords when it is not run
982 by root. This is via a helper binary that is setuid root.
984 * pam_permit now prompts for a username if it is not already determined
986 * pam_rhosts now honors "debug" and no longer hardwire's "root" as the
989 * pam_securetty now honors the "debug" flag
991 * trouble parsing extra spaces fixed in pam_time and pam_group
993 * added Michael K. Johnson's PGP key to the pgp.keys.asc list
995 * pam_end->env not being free()'d: fixed
997 * manuals relocated to section 3
999 * fixed bug in pam_mail.c, and enhanced to recognize '~' as a prefix
1000 to indicate the $HOME of the user (courtesy David
1001 Kinchlea). *Changed* from a "session" module to an "auth"
1002 module. It cannot be used to authenticate a user, but it can be used
1003 in setting credentials.
1005 * fixed a stupid bug in pam_warn.. Only PAM_SERVICE was being read :*(
1007 * pam_radius rewritten to exclusively make use of libpwdb. (minor fix
1008 to Makefile for cleaning up - AGM)
1010 * pam_limits extended to limit the total number of logins on a system
1013 * libpam and libpam_misc use $(MAJOR_REL) and $(MINOR_REL) to set their
1014 version numbers [defined in top level makefile]
1016 * bugfix in sed command in defs/redhat.defs (AGM's fault)
1018 * The following was related to a possibility of buffer overruns in
1019 the syslogging code: removed fixed length array from syslogging
1020 function in the following modules [capitalized the log identifier
1021 so the sysadmin can "know" these are fixed on the local system],
1023 pam_ftp, pam_stress, pam_rootok, pam_securetty,
1024 pam_listfile, pam_shells, pam_warn, pam_lastlog
1026 pam_unix_passwd (where it was definitely _not_ exploitable)
1028 0.55: Sat Jan 4 14:43:02 PST 1997, Andrew Morgan <morgan@parc.power.net>
1030 * added "requisite" control_flag to /etc/pam.conf syntax. [See
1031 Sys. Admin. Guide for explanation] changes to pam_handlers.c
1033 * completely new handling of garbled pam.conf lines. The modus
1034 operandi now is to assume that any errors in the line are minor.
1035 Errors of this sort should *most definitely* lead to the module
1036 failing, however, just ignoring the line (as was the case
1037 previously) can lead to gaping security holes(! Not foreseen by the
1038 RFC). The "motivation" for the RFC's comments about ignoring garbled
1039 lines is present in spirit in the new code: basically a garbled line
1040 is treated like an instance of the pam_deny.so module.
1041 changes to pam_handlers.c and pam_dispatch.c .
1043 * patched libpam, to (a) call _pam_init_handlers from pam_start() and
1044 (b) to log a text error if there are no modules defined for a given
1045 service when a call to a module is requested. [pam_start() and
1046 pam_dispatch() were changed].
1048 * patched pam_securetty to deal with "/dev/" prefix on PAM_TTY item.
1050 * reorganized the modules/Makefile to include *ALL* modules. It is now
1051 the responsibility of the modules themselves to test whether they can
1052 be compiled locally or not.
1054 * modified pam_group to add to the getgroups() list rather than overwrite
1055 it. [In the case of "HAVE_LIBPWDB" we use the pwdb_..() calls to
1056 translate the group names.]. Module now pays attention to
1059 * identified and removed bugs in field reading code of pam_time and
1062 * Cristian's patches to pam_listfile module, corresponding change to
1065 * I've discovered &ero; for sgml!
1066 Added pam_time documentation to the admin guide.
1068 * added manual pages: pam.8, pam_start.2(=pam_end.2),
1069 pam_authenticate.2, pam_setcred.2, pam_strerror.2,
1070 pam_open_session.2(=pam_close_session.2) and pam_chauthtok.2 .
1072 * added new modules:
1074 - pam_mail (tells the user if they have any new mail
1075 and sets their MAIL env variable)
1076 - pam_lastlog (reports on the last time this user called
1079 * new module hooks provided.
1081 * added a timeout feature to the conversation function in
1082 libpam_misc. Documented it in the application developers' guide.
1084 * fixed bug in pam_misc_paste_env() function..
1086 * slight modifications to wheel and rhosts writeup.
1088 * more security issues added to module and application guides.
1091 Things present but not mentioned in previous release (sorry)
1093 * pam_pwdb module now resets the "last_change" entry before updating a
1097 Sat Nov 30 19:30:20 PST 1996, Andrew Morgan <morgan@parc.power.net>
1099 * added environment handling to libpam. involved change to _pam_types.h
1100 also added supplementary functions to libpam_misc
1102 * added pam_radius - Cristian
1104 * slight speed up for pam_rhosts
1106 * significantly enhanced sys-admin documentation (8 p -> 41 p in
1107 PostScript). Added to other documentation too. Mostly the changes
1108 in the other docs concern the new PAM-environment support, there is
1109 also some coverage of libpam_misc in the App. Developers' guide.
1111 * Cristian's patches to pam_limits and pam_pwdb. Fixing bugs. (MORE added)
1113 * adopted Cristian's _pam_macros.h file to help with common macros and
1114 debugging stuff, gone through tree tidying up debugging lines to use
1115 this [not complete].
1117 - for consistency replaced DROP() with _pam_drop()
1119 * commented memory debugging in top level makefile
1121 * added the following modules
1123 - pam_warn log information to syslog(3) about service application
1124 - pam_ftp if user is 'ftp' then set PAM_RUSER/PAM_RHOST with password
1125 (comment about nologin added to last release's notes)
1127 * modified the pam_listfile module. It now declares a meaningful static
1130 Sun Nov 10 13:26:39 PST 1996, Andrew Morgan <morgan@parc.power.net>
1132 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
1134 -------> http://parc.power.net/morgan/Linux-PAM/index.html <-------
1136 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
1138 A brief summary of what has changed:
1140 * many modules have been modified to accomodate fixing the pam_get_user()
1141 change. Please take note if you have a module in this distribution.
1143 * pam_unix is now the pam_unix that Red Hat has been using and which
1144 should be fairly well debugged.
1146 - I've added some #ifdef's to make it compile for me, and also
1147 updated it with respect to the libpam-0.53, so have a look at the
1148 .../modules/pam_unix/Makefile to enable cracklib and shadow features
1150 ** BECAUSE OF THIS, I cannot guarantee this code works as it **
1151 ** did for Red Hat. Please test and report any problems. **
1153 * the pam_unix of .52 (renamed to pam_pwdb) has been enhanced and made
1154 more flexible with by implementing it with respect to the new
1155 "Password Database Library" see
1157 http://parc.power.net/morgan/libpwdb/index.html
1159 modules included in this release that require this library to
1160 function are the following:
1162 - pam_pwdb (ne pam_unix-0.52 + some enhancements)
1167 * Added some optional code for memory debugging. In order to support
1168 this you have to enable MEMORY_DEBUG in the top level makefile and
1169 also #define MEMORY_DEBUG in your applications when they are compiled.
1170 The extra code resides in libpam (compiled if MEMORY_DEBUG is defined)
1171 and the macros for malloc etc. are to be found at the end of
1174 * used above code to locate two memory leaks in pam_unix module and two
1175 in libpam (pam_handlers.h)
1177 * pam_get_user() now sets the PAM_USER item. After reading the Sun
1178 manual page again, it was clear that it should do this. Various
1179 modules have been assuming this and now I have modified most of them
1180 to account for this change. Additionally, pam_get_user() is now
1181 located in the module include file; modules are supposed to be the
1182 ones that use it(!) [Note, this is explicitly contrary to the Sun
1183 manual page, but in the spirit of the Linux distribution to date.]
1185 * replaced -D"LINUX" with -D"LINUX_PAM" as this is more explicit and less
1186 likely to be confused with -D"linux".
1187 Also, modified the libpam #include files to behave more like the Sun
1188 ones #ifndef LINUX_PAM.
1190 * removed <bf/ .. / from documentation titles. This was not giving
1191 politically correct html..
1193 ----- My vvvvvvvvvvvvvvvvvvv was a long time ago ;*] -----
1195 Wed Sep 4 23:57:19 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>
1197 0. Before I begin, Linux-PAM has a new primary distribution site (kindly
1198 donated by Power Net Inc., Los Angeles)
1200 **PLEASE AMMEND YOUR PERSONAL LINKS**
1202 -------> http://www.power.net/morgan/Linux-PAM <-------
1204 **PLEASE AMMEND YOUR PERSONAL LINKS**
1206 1. I'm hoping to make the next release a bug-fix release... So please find
1209 2. here are the changes for .52:
1211 * minor changes to module documentation [Incidently, it is now
1212 available on-line from the WWW page above]. More changes to follow in
1213 the next two releases. PLEASE EMAIL me or the list if there is
1214 anything that isn't clear!
1216 * completely changed the unix module. Now a single module for all four
1217 management groups (this meant that I could define all functions as
1218 static that were not part of the pam_sm_... scheme. AGM)
1220 - Shadow support added
1221 PASSWD - Elliot's account management included, and enhanced by Cristian Gafton.
1222 - MD5 password support added by Cristian Gafton.
1223 - maxtries for authentication now enforced.
1224 - Password changing function in pam_unix now works!
1225 Although obviously, I'm not going to *guarantee* it ;^) .
1226 - stole Marek's locking code from the Red Hat unix module.
1227 [ If you like you can #ifdef it in or out ... ]
1229 You can configure the module more from its Makefile in
1230 0.52/modules/pam_unix/
1232 If you are nervous that it will destroy your /etc/passwd or shadow
1233 files then EDIT the 0.52/modules/pam_unix/pam_unix_pass.-c file.
1234 Here is the warning comment from this file...
1236 -------------8<-----------------
1239 * Uncomment the following #define if you are paranoid, and do not
1240 * want to risk losing your /etc/passwd or shadow files.
1241 * It works for me (AGM) but there are no guarantees.
1245 /* #define TMP__FILE */
1246 ------------->8-----------------
1248 *** If anyone has any trouble, please *say*. Your problem will be
1249 fixed in the next release. Also please feel free to scour the
1250 code for race conditions etc...
1252 [* The above change requires that you purge your /usr/lib/security
1253 directory of the old pam_unix_XXX.so modules: they will NOT be deleted
1254 with a 'make remove'.]
1256 * the prototype for the cleanup function supplied to pam_set_data used
1257 to return "int". According to Sun it should be "void". CHANGED.
1259 * added some definitions for the 'error_status' mask values that are
1260 passed to the cleanup function associated with each
1261 module-data-item. These numbers were needed to keep up with changing
1262 a data item (see for example the code in pam_unix/support.-c that
1263 manages the maximum number of retries so far). Will see what Sun says
1264 (current indications are positive); this may be undone before 1.0 is
1265 released. Here are the definitions (from pam_modules.h).
1267 #define PAM_DATA_SILENT 0x40000000 /* used to suppress messages... */
1268 #define PAM_DATA_REPLACE 0x20000000 /* used when replacing a data item */
1270 * Changed the .../conf/pam.conf file. It now points to the new
1271 pam_unix module for 'su' and 'passwd' [can get these as SimpleApps --
1272 I use them for testing. A more extensive selection of applications is
1273 available from Red Hat...]
1275 * corrected a bug in pam_dispatch. Basically, the problem was that if
1276 all the modules were "sufficient" then the return value for this
1277 function was never set. The net effect was that _pam_dispatch_aux
1278 returned success when all the sufficient modules failed. :^( I think
1279 this is the correct fix to a problem that the Red Hat folks had
1282 sopwith* Removed advisory locking from libpam (thanks for the POSIX patch
1283 goes to Josh Wilmes's, my apologies for not using it in the
1284 end.). Advisory locking did not seem sufficiently secure for libpam.
1285 Thanks to Werner Almesberger for identifying the corresponding "denial
1286 of service attack". :*(
1288 * related to fix, have introduced a lock file /var/lock/subsys/PAM
1289 that can be used to indicate the system should pay attention to
1290 advisory locking on /etc/pam.conf file. To implement this you need to
1291 define PAM_LOCKING though. (see .52/libpam)
1293 * modified pam_fail_delay() function. Couldn't find the "not working"
1294 problem indicated by Michael, but modified it to do pseudo-random
1295 delays based on the values indicated by pam_fail_delay() -- the
1296 function "that may eventually go away"... Although Sun is warming to
1299 * new modules include:
1301 pam_shells - authentication for users with a shell listed in
1302 /etc/shells. Erik Troan <ewt@redhat.com>
1304 pam_listfile - authentication based on the contents of files.
1305 Set to be more general than the above in the
1306 future. UNTESTED. Elliot Lee <@redhat.com>
1307 [Note, this module compiles with a non-trivial
1310 Thu Aug 8 22:32:15 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1312 * modified makefiles to take more of their installation instructions
1313 from the top level makefile. Desired for integration into the Debian
1314 distribution, and generally a good idea.
1316 * fixed memory arithmetic in pam_handlers
1317 -- still need to track down why failure to load modules can lead to
1318 authentication succeding..
1320 * added tags for new modules (smartcards from Alex -- just a promise
1321 at this stage) and a new module from Elliot Lee; pam_securetty
1323 * I have not had time to smooth out the wrinkles with it, but Alex's
1324 pam_unix modifications are provided in pam_unix-alex (in the modules
1325 directory) they will not be compiled by 'make all' and I can't even
1326 say if they do compile... I will try to look at them for .52 but, in
1327 the mean time please feel free to study/fix/discuss what is there.
1329 * pam_rhosts module. Removed code for manually setting the ruser
1330 etc. This was not very secure.
1332 * [remade .ps docs to be in letter format -- my printer complains
1335 Sunday July, 7 12:45:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1337 * No longer accompanying the Linux-PAM release with apps installed.
1338 [Will provide what was here in a separate package.. (soon)
1339 lib Also see http://www.redhat.com/pam for some more (in .rpm form...)]
1341 * renamed libmisc to libpam_misc. It is currently configured to only compile
1342 the static library. For some strange reason (perhaps someone can
1343 investigate) my Linux 2.0.0 kernel with RedHat 3.0.3 system
1344 segfaults when I compile it to be a dynamic library. The segfault
1345 seems to be inside the call to the ** dl_XXX ** function...!?
1347 There is a simple flag in the libpam_misc/Makefile to turn on dynamic
1350 * Added a little unofficial code for delay support in libpam (will probably
1351 disappear later..) There is some documentation for it in the pam_modules
1352 doc now. That will obviously go too.
1354 * rewritten pam_time to use *logic* to specify the stringing together of
1355 users/times/terminals etc.. (what was there before was superficially
1356 logical but basically un-predictable!)
1358 * added pam_group. Its syntax is almost identical to pam_time but it
1359 has another field added; a list of groups to make the user a member
1360 of if they pass the previous tests. It seems to not co-exist too well
1361 with the groups in the /etc/group but I hope to have that fixed by
1364 * minor re-formatting of pam_modules documentation
1366 * removed ...// since it wasn't being used and didn't look like it
1369 GCCSunday 23 22:35:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1371 * The major change is the addition of a new module: pam_time for
1372 restricting access on terminals at given times for indicated users
1373 it comes with its own configuration file /etc/security/time.conf
1374 and the sample file simply restricts 'you' from satisfying the blank
1375 application if they try to use blank from any tty*
1377 * Small changes include
1378 - altered pam.conf to demonstrate above new module (try typing username: you)
1379 - very minor changes to the docs (pam_appl and pam_modules)
1381 Saturday June 2 01:40:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1383 *** PLEASE READ THE README, it has changed ***
1385 * NOTE, 'su' exhibits a "system error", when static linking is
1386 used. This is because the pam_unix_... module currently only has
1387 partial static linking support. This is likely to change on Monday
1388 June 3, when Alex makes his latest version availible. I will include
1389 the updated module in next release.
1393 * modified the way in which libpam/pam_modules.h defines prototypes for
1394 the pam_sm_ functions. Now the module must declare which functions it
1395 is to provide *before* the #include <security/pam_modules.h> line.
1396 (for contrasting examples, see the pam_deny and pam_rootok modules)
1397 This removed the ugly hack of defining functions that are never called
1398 to overcome warnings... This seems much tidier.
1399 insterted* updated the TODO list. (changed mailing list address)
1400 * updated README in .../modules to reflect modifications to static
1401 compliation protocol
1402 * modified the pam_modules documentation to describe this.
1403 * corrected last argument of pam_get_item( ... ) in
1404 pam_appl/modules.sgml, to "const void **".
1405 * altered GNU GPL's in the documentation, and various other parts of
1406 the distribution. *Please check* that any code you are responsible for
1408 * Added ./Copyright (please check that it is acceptable)
1409 * updated ./README to make current and indicate the new mailing list
1411 * have completely rewritten pam_filter. It now runs modular filter
1412 executables (stored in /usr/sbin/pam_filter/) This should make it
1413 trivial for others to write their own filters.. If you want yours
1414 included in the distribution please email the list/me.
1415 * changes to libpam; there was a silly bug with multiple arguments on a
1416 pam.conf line that was broken with a '\<LF>'.
1417 * 'su' rearranged code (to make better use of PAM)
1418 *Also* now uses POSIX signals--this should help the Alpha port.
1419 * 'passwd' now uses getlogin() to determine who's passwords to change.
1421 Sunday May 26 9:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1423 * fixed module makefiles to create needed dynamic/static subdirectories
1425 Saturday May 25 20:30:27.8 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1427 * LOTS has changed regarding how the modules/libpam are built.
1428 * Michael's mostly complete changes for static support--see below
1429 (Andrew got a little carried away and automated the static linking
1430 of modules---bugs are likely mine ;( )
1431 * Thanks mostly to Michael, libpam now compiles without a single warning :^]
1432 * made static modules/library optional.
1433 CFLAGS* added 'make sterile' to top level makefile. This does extraclean and remove
1434 * added Michael and Joseph to documentation credits (and a subsection for
1435 future documentation of static module support in pam_modules.sgml)
1436 * libpam; many changes to makefiles and also automated the inclusion of
1437 static module objects in pam_static.c
1438 * modified modules for automated static/dynamic support. Added static &
1439 dynamic subdirectories, as instructed by Michael
1440 * removed an annoying syslog message from pam_filter: "parent exited.."
1441 * updated todo list (anyone know anything about svgalib/X? we probably should
1442 have some support for these...)
1444 Friday May 24 16:30:15 EDT 1996 (Michael K. Johnson <johnsonm@redhat.com>)
1446 * Added first (incomplete) cut at static support.
1448 . changes in libpam, including a new file, pam_static.c
1449 . changes to modules including exporting struct of function pointers
1450 . static and dynamic linking can be combined
1451 . right now, the only working combinations are just dynamic
1452 linking and dynamic libpam.so with static modules linked
1453 into libpam.so. That's on the list of things to fix...
1454 . modules are built differently depending on whether they
1455 are static or dynamic. Therefore, there are two directories
1456 under each module directory, one for static, and one for
1458 * Fixed random brokenness in the Makefiles. [ foo -nt bar ] is
1459 rather redundant in a makefile, for instance. Also, passing
1460 on the command line is broken because it cannot be
1461 overridden in any way (even adding important parts) in lower-level
1463 * Unfortunately, fixing some of the brokenness meant that I used
1464 GNU-specific stuff. However, I *think* that there was GNU-specific
1465 stuff already. And I think that we should just use the GNU
1466 extensions, because any platform that GNU make doesn't port to
1467 easily will be hard to port to anyway. It also won't be likely
1468 passwd to handle autoconf, which was Ted's suggestion for getting
1469 around limitations in standard make...
1470 For now, I suggest that we just use some simple GNU-specific
1473 Monday May 20 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1475 * added some text to pam_modules.sgml
1476 * corrected Marek's name in all documentation
1477 * made pam_stress conform to chauthtok conventions -- ie can now request
1478 old password before proceeding.
1479 * included Alex's latest unix module
1480 * included Al's + password strength checking module
1481 * included pam_rootok module
1482 * fixed too many bugs in libpam.. all subtly related to the argument lists
1483 or use of syslog. Added more debugging lines here too.
1484 * fixed the pam.conf file
1485 * deleted pam_test module. It is pretty old and basically superceeded
1488 Friday May 9 1:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1490 * updated documentaion, added Al Longyear to credits and corrected the
1491 spelling of Jeff's name(!). Most changes to pam.sgml (even added a figure!)
1492 * new module pam_rhosts_auth (from Al Longyear)
1493 * new apps rlogind and ftpd (a patch) from Al.
1494 * modified 'passwd' to not call pam_authenticate (note, none of the
1495 modules respect this convention yet!)
1496 * fixed bug in libpam that caused trouble if the last line of a
1497 pam.conf file ends with a module name and no newline character
1498 * also made more compatable with documentation, in that bad lines in
1499 pam.conf are now ignored rather than causing libpam to return an
1501 * libpam now overwrites the AUTHTOKs when returning from
1502 pam_authenticate and pam_chauthtok calls (as per Sun/RFC too)
1503 * libpam is now installed as libpam.so.XXX in a way that ldconfig can
1507 Wednesday May 1 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1509 * removed .../test directory, use .../examples from now on.
1510 * added .../apps directory for fully functional applications
1511 - the apps directory contains directories that actually contain the apps.
1512 the idea is to make application compilation conditional on the presence
1513 of the directory. Note, there are entries in the Makefile for
1514 'login' and 'ftpd' that are ready for installation... Email me if
1515 you want to reserve a directory name for an application you are
1517 * similar changes to .../modules makefile [entries for pam_skey and
1518 pam_kerberos created---awaiting the directories.] Email me if you
1519 want to register another module...
1520 * minor changes to docs.. Not really worth reprinting them quite yet!
1522 * added misc_conv to libmisc. it is a generic conversation function
1523 for text based applications. [would be nice to see someone create
1524 an Xlib and/or svgalib version]
1525 * fixed ctrl-z/c bug with pam_filter module [try xsh with the default
1527 * added 'required' argument to 'pam_stress' module.
1528 * added a TODO list... other suggestions to the list please.
1530 Saturday April 7 00:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1532 * Alex and Marek please note I have altered _pam_auth_unix a little, to
1533 make it get the passwords with the "proper method" (and also fixed it
1534 to not have as many compiler warnings)
1535 * updated the conf/pam.conf file
1536 * added new example application examples/xsh.c (like blank but invokes
1538 * Marc's patches for examples/blank.c (and AGM's too)
1539 * fixed stacking of modules in libpam/pam_handlers.c
1540 * fixed RESETing in libpam/pam_item.c
1541 * added new module modules/pam_filter/ to demonstrate the possibility
1542 of inserting an arbitrary filter between the terminal and the
1543 application that could do customized logging etc... (see use of
1544 bin/xsh as defined in conf/pam.conf)
1547 Saturday March 16 19:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1549 These notes are for 0.3 I don't think I've left anything important
1550 out, but I will use emacs 'C-x v a' next time! (Thanks Jeff)
1552 * not much has changed with the functionality of the Linux-PAM lib
1554 - pam_password calls module twice with different arguments
1555 - added const to some of the function arguments
1556 - added PAM_MAX_MES_ to <security/_pam_types.h>
1557 - was a lot over zealous about purging old passwords...
1558 I have removed much of this from source to make it
1559 more compatible with SUN.
1560 - moved some PAM_... tokens to pam_modules.h from _pam_types.h
1561 (no-one should notice)
1563 * added three modules: pam_permit pam_deny pam_stress
1564 no prizes for guessing what the first two do. The third is
1565 a reasonably complete (functional) module. Is intended for testing
1568 * fixed a few pieces of examples/blank.c so that it works (with
1571 * ammended the documentation. Looking better, but suggestions/comments
1574 Sunday March 10 10:50:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1576 These notes are for Linux-PAM release 0.21. They cover what's changed
1577 since I relased 0.2.
1580 * substantially changed ./README
1581 * fixed bug reading \\\n in pam.conf file
1582 * small changes to documentation
1583 * added `blank' application to ./examples (could be viewed as
1584 a `Linux-PAM aware' application template.)
1585 * oops. now including pam_passwd.o and pam_session.o in pamlib.so
1586 * compute md5 checksums for all the source when making a release
1587 - added `make check' and `make RCScheck' to compute md5 checksums
1588 * create a second tar file with all the RCS files in.
1589 * removed the .html and .txt docs, supplying sgml sources instead.
1590 - see README for info on where to get .ps files
1592 Thursday March 6 0:44:?? PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1594 These notes are for Linux-PAM release 0.2. They cover what's changed
1595 since Marc Ewing relased 0.1.
1597 **** Please note. All of the directories in this release have been modified
1598 **** slightly to conform to the new pamlib. A couple of new directories have
1599 **** been added. As well as some documentation. If some of your code
1600 **** was in the previous release. Feel free to update it, but please
1601 **** try to conform to the new headers and Makefiles.
1603 * Andrew Morgan (morgan@physics.ucla.edu) is making this release
1604 availible, Marc has been busy...!
1606 * Marc's pam-0.1/lib has been (quietly) enhanced and integrated into
1607 Alex Yurie's collected tree of library and module code
1608 (linux-pam.prop.1.tar.gz). Most of the changes are to do with error
1609 checking. Some more robustness in the reading of the pam.conf file
1610 and the addition of the pam_get_user() function.
1612 * The pam_*.h files have been reorganized to logically enforce the
1613 separation of modules from applications. [Don't panic! Apart from
1614 changing references of the form
1616 #include "pam_appl.h"
1620 #include <security/pam_appl.h>
1622 The reorganization should be backwardly compatable (ie. a module
1623 written for SUN will be as compatable as it was before with the
1624 previous version ;)~ ]
1626 (All of the source in this tree now conforms to this scheme...)
1628 The new reorganization means that modules can be compiled with a
1629 single header, <security/pam_modules.h>, and applications with
1630 <security/pam_appl.h>.
1632 * I have tried to remove all the compiler warnings from the updated
1633 "pamlib/*.c" files. On my system, (with a slightly modified <dlfcn.h>
1634 email me if it interests you..) there are only two warnings that
1635 remain: they are that ansi does not permit void --> fn ptr
1636 assignment. K&Rv2 doesn't mention this....? As a matter of principle,
1637 if anyone knows how to get rid of that warning... please
1638 tell. Thanks! "-pedantic"
1640 * you can "make all" as a plain user, but
1642 * to "make install" you must be root. The include files are placed in
1643 /usr/include/security. The libpam.so library is installed in /usr/lib
1644 and the modules in /usr/lib/security. The two test binaries
1645 are installed in the Linux-PAM-0.2/bin directory and a chance is given to
1646 replace your /etc/pam.conf file with the one in Linux-PAM-0.2/conf.
1648 * I have included some documentation (pretty preliminary at the
1649 moment) which I have been working on in .../doc .
1651 I have had a little trouble with the modules, but atleast there are no
1652 segfaults! Please try it out and discuss your results... I actually
1653 hope it all works for you. But, Email any bugs/suggestions to the
1654 Linux-PAM list: linux-pam@mit.edu .....
1659 (morgan@physics.ucla.edu)
1662 Sat Feb 17 17:30:24 EST 1996 (Alexander O. Yuriev alex@bach.cis.temple.edu)
1664 * conf directory created with example of pam_conf
1665 * stable code from pam_unix is added to modules/pam_unix
1666 * test/test.c now requests username and password and attempts
1667 to perform authentication