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.. You can query the
28 related bug description with the following URL:
30 http://sourceforge.net/bugs/?func=detailbug&bug_id=XXXXX&group_id=6663
32 Where you should replace XXXXX with a bug-id.
33 ====================================================================
35 0.74: please submit patches for this section with actual code/doc
38 * modify format of pam_unix log messages to include service name
40 * prevent pam_unix from logging unknown usernames (Bug 126431 - vorlon)
41 * changed format of pam_unix 'authentication failure' log messages to make
42 them clearer and more consistent (Bug 126036 - vorlon)
43 * improved portability of pam_unix by eliminating Linux-specific utmp
44 defines in PAM_getlogin() (Bug 125704 - vorlon)
45 * removed static variables from pam_tally (Bug 117434 - agmorgan)
46 * added copyright message to pam_access module from original logdaemon
47 sources (Bug 125022 - agmorgan)
48 * configure.in - removed the GCC -Wtraditional flag (Bug 124923 - agmorgan)
49 * pam_mail - use PAM_PATH_MAILDIR as the location of mail spool
50 (Bug 124397 - baggins)
51 * _pam_aconf.h.in, configure.in - added PAM_PATH_MAILDIR set via
52 --with-mailspool=dir option (default is _PAM_MAILDIR if defined
53 in paths.h otherwise /var/spool/mail (Bug 124397 - baggins)
54 * removed unnecessary CVS Log tags from all over the source
55 (Bug 124391 - baggins)
56 * pam_tally - check for PAM_TTY if PAM_RHOST is not set when writing
57 to faillog (Bug 124394 - baggins)
58 * use O_NOFOLLOW if available when opening debug log (Bug 124385 - baggins)
59 * pam_cracklib - removed comments about pam_unix not working with
60 pam_cracklib, added information about use_authtok parameter
61 (Bug 124388 - baggins)
62 * pam_userdb - fixed wrong definition of struct pam_module (was pam_wheel)
63 (Bug 124386 - baggins)
64 * fixed example/Makefile include path (Bug 124187 - agmorgan)
65 * pam_userdb compiles on RH5x. Also removed circular dependency on
66 configure.in. Also bumped revision number to 0.74. (Bug 124136 -
69 0.73: Sat Dec 2 00:04:04 PST 2000
71 * updated documentaion revisions and added 'make release' support
72 to the top level Makefile (Bug 124132 - agmorgan).
73 * documented Qmail support in pam_mail (Bug 109219 - baggins)
74 * add change_uid option to pam_limits, and set real uid only if
75 this option is present (Bug 124062 - baggins)
76 * pam_limits - set real uid to the user for who we set limits.
77 (Bug 123972 - baggins)
78 * removed static variables from pam_limits (thread safe now). (Bug
80 * removed static variable from pam_wheel (module should be thread safe
81 now). (Bug 112906 - agmorgan)
82 * added support for '/' symbols in pam_time and pam_group config files
83 (support for modern terminal devices). Fixed infinite loop problem
84 with '\\[^\n]' in these files. (Bug 116076 - agmorgan)
85 * avoid potential SIGPIPE when writing to helper binaries with (Bug
87 * replaced bogus logic in the pam_cracklib module for determining if
88 the replacement is too similar to the old password (Bug 115055 -
90 * added accessconf=<filename> feature to pam_access - request from
91 Aldrin Martoq and Meelis Roos (Bugs 111927,117240 - agmorgan)
92 * fix for pam_limit module not dealing with all limits Adam J. Richter
93 (Bug 119554 - agmorgan)
94 * comment fix describing fail_delay callback in _pam_types.h (Bug
96 * "likeauth" fix for pam_unix and pam_pwdb which (Bug 113596 - agmorgan)
97 * fix for pam_unix (support.c) to avoid segfault with NULL password
99 * fix to pam_unix_passwd: try repeatedly to get a lock on the password
100 file, instead of failing immediately (Bug 108845 - fix vorlon)
101 * fix to pam_shells: logged information was not formatted correctly
102 (extra comma) (Bug 111491 - fix vorlon)
103 * fix for C++ application support (Bug 111645 - fix agmorgan)
104 * fix for typo in pam_client.h (Bug 111648 - fix agmorgan)
105 * removal of -lpam from pam_mkhomedir Makefile (Bug 116380 - fix agmorgan)
106 * autoconf support [Task ID 15788, Bug ID 108297 - agmorgan with help!]
107 - bugfix for libpamc.h include file [Bug ID 117476 - agmorgan]
108 - bugfix for pam_filter.h inclusion [Bug ID 117474 - agmorgan]
110 0.72: Mon Dec 13 22:41:11 PST 1999
112 * patches from Debian (Ben Collins): pam_ftp supports event driven
113 conversations now; pwdb_chkpwd cleanup; pam_warn static compile fix;
114 user_db compiler warnings removed; debian defs file; pam_mail can
115 now be used as a session module
116 * ndbm compilation option for user_db module (fix explained by Richard Khoo)
117 * pam_cracklib bug fix
118 * packaging fixes & build from scratch stuff (Konst Bulatnikov & Frodo
120 * -ldl appended to the libpam.so compilation make rule. (Charles Seeger)
121 * Red Hat security patch for pam_pwdb forwarded by Debian! (Ben
122 Collins. Fix provided by Andrey as it caught the problem earlier in the
124 * heuristic to prevent leaking filedescriptors to an agent. [This needs
125 to be better supported perhaps by an additional libpamc API function?]
126 * pam_userdb segfault fix from (Ben Collins)
127 * PAM draft spec extras added at request of 'sen_ml'
129 0.71: Sun Nov 7 20:21:19 PST 1999
131 * added -lc to linker pass for pam_nologin module (glibc is weird).
132 * various header changes to lower the number of warnings on glibc
133 systems (Dan Yefimov)
134 * merged a bunch of Debian fixes/patches/documentation (Ben Collins)
135 things touched: libpam (minor); doc/modules/pam_unix.sgml; pam_env
136 (plus docs); pam_mkhomedir (new module for new home directories on
137 the fly...); pam_motd (new module); pam_limits (adjust to match
138 docs); pam_issue (new module + doc) [Some of these were also
139 submitted by Thorsten Kukuk]
140 * small hack to lower the number of warnings that pam_client.h was
142 * debian and SuSE apparently can use the pam_ftp module, so
143 removed the obsolete comment about this from the docs. (Thorsten
146 0.70: Fri Oct 8 22:05:30 PDT 1999
148 * bug fix for parsing of value=action tokens in libpam/pam_misc.c was
149 segfaulting (Jan Rekorajski and independently Matthew Melvin)
150 * numerous fixes from Thorsten Kukuk (icluding much needed fixes for
151 bitrot in modules and some documentation) that got included in SuSE 6.2.
152 * reentrancy issues in pam_unix and pam_cracklib resolved (Jan Rekorajski)
153 * added hosts_equiv_rootok module option to pam_rhosts module (Tim Berger)
154 * added comment about 'expose_account' module argument to admin and
155 module writers' docs (request from Michael K Johnson).
156 * myriad of bug fixes for libpamc - library now built by default and
157 works with the biomouse fingerprint scanner agent/module
158 (distributed separately).
160 0.69: Sun Aug 1 20:25:37 PDT 1999
162 * c++ header #ifdef'ing for pam_appl.h (Tuomo Pyhala)
163 * added pam_userdb module (Cristian Gafton)
164 * minor documentation changes
165 * added in revised pam_client library (libpamc). Not installed by
166 default yet, since the example agent/module combo is not very secure.
167 * glibc fixes (Thorsten Kukuk, Adam J. Richter)
169 0.68: Sun Jul 4 23:04:13 PDT 1999
171 * completely new pam_unix module from Jan Rekorajski and Stephen Langasek
172 * Jan Rekorajski pam_mail - support for Maildir format mailboxes
173 * Jan Rekorajski pam_cracklib - support for old password comparison
174 * Jan Rekorajski bug fix for pam_pwdb setcred reusing auth retval
175 * Andrey's pam_tally patch (lstat -> fstat)
176 * Robert Milkowski's additional pam_tally patches to **change format of
177 /var/log/faillog** to one from shadow-utils, add new option "per_user"
178 for pam_tally module, failure time logging, support for fail_line
179 field, and support for fail_locktime field with new option
181 * pam_tally: clean up the tally application too.
182 * Marcin Korzonek added process priority settings to pam_limits (bonus
183 points for adding to documentation!)
184 * Andrey's pam_pwdb patch (cleanup + md5 endian fubar fix)
185 * more binary prompt preparations (make misc conv more compatible with spec)
186 * modified callback hook for fail delay to be more useful with event
187 driven applications (changed function prototype - suspect no one
188 will notice). Documented this in app developer guide.
189 * documentation for pam_access from Tim Berger
190 * syntax fixes for the documentation - a long time since I've built it :*(
191 added some more names to the CREDITS file.
193 0.67: Sat Jun 19 14:01:24 PDT 1999
195 * [dropped libpam_client - libpamc will be in the next release and
196 conforms to the developing spec in doc/specs/draft-morgan-pam.raw.
197 Sorry if you are keeping a PAM tree in CVS. CVS is a pain for
198 directories, but this directory was actually not referenced by
199 anything so the disruption should be light.]
200 * updates to pam_tally from Tim
201 * multiple updates from Stephen Langasek to pam_unix
202 * pam_filter had some trouble compiling (bug report from Sridhar)
203 * pam_wheel now attempts to identify the wheel group for the local
204 system instead of blindly assuming it is gid=0. In the case that
205 there is no "wheel" group, we default to assuming gid=0 is what was
206 meant - former behavior. (courtesy of Sridhar)
207 * NIS+ changes to pam_unix module from Dmitry O Panov
208 * hopefully, a fix for redefinition of LOG_AUTHPRIV (bug report Luke
209 Kenneth Casson Leighton)
210 * fix for minor typo in pam_wheel documentation (Jacek Kopecky)
211 * slightly more explanation of the [x=y] pam.conf syntax in the sys
214 0.66: Mon Dec 28 20:22:23 PST 1998 <morgan@linux.kernel.org>
216 * Started using cvs to keep track of changes to Linux-PAM. This will
217 likely break some of the automated building stuff (RPMs etc..).
218 * security bug fix to pam_unix and pam_tally from Andrey.
219 * modules make file is now more automatic. It should be possible to
220 unpack an external module in the modules directory and have it automatically
221 added to the build process. Also added a modules/download-all script
222 that will make such downloading easier. I'm happy to receive patches to
223 this file, informing the distribution of places from which to enrich itself.
224 * removed pam_system_log stuff. Thought about it long and hard: a
225 bad idea. If libc cannot guarantee a thread safe syslog, it needs
226 to be fixed and compatibility with other PAM libraries was
227 unnecessarily strained.
228 * SAG documentation changes: Seth Chaiklin
229 * rhosts: problems with NIS lookup failures with the root-uid check.
230 As a work-around, I've partially eliminated the need for the lookup
231 by supplying two new arguments: no_uid_check, superuser=<username>.
232 As a general rule this is more pluggable, since this module might be
233 used as an authentication scheme for a network service that does not
234 need root privilege...
235 * authenticate retval -> setcred for pam_pwdb (likeauth arg).
236 * pam_pwdb event driven support
237 * non openlog pam_listfile logging
238 * BUGFIX: close filedescriptor in pam_group and pam_time (Emmanuel Galanos)
239 * Chris Adams' mailhash change for pam_mail module
240 * fixed malloc failure check in pam_handlers.c (follow up to comment
242 * update to _pam_compat.h (Brad M. Garcia)
243 * support static modules in libpam again (Brad M. Garcia)
244 * libpam/pam_misc.c for egcs to grok the code (Brad M. Garcia)
245 * added a solaris-2.5.1 defs file (revived by Derrick J Brashear)
246 * pam_listfile logs failed attempts
247 * added a comment (Michael K Johnson pointed it out) about sgml2latex
248 having a new syntax. I'll make it the change real when I upgrade...
249 * a little more text to the RFC, spelling fix from William J Buffam.
250 * minor changes to pam_securetty to accommodate event driven support.
252 0.65: Sun Apr 5 22:29:09 PDT 1998 <morgan@linux.kernel.org>
254 * added event driven programming extensions to libpam
255 - added PAM_INCOMPLETE handling to libpam/pam_dispatch.c
256 - added PAM_CONV_AGAIN which is a new conversation response that
257 should be mapped to PAM_INCOMPLETE by the module.
258 - ensured that the pam_get_user() function can resume
259 - changes to pam_strerror to accommodate above return codes
260 - clean up _pam_former_state at pam_end()
261 - ensured that former state is correctly initialized
262 - added resumption tests to pam_authenticate(), pam_chauthtok()
263 - added PAM_FAIL_DELAY item for pausing on failure
265 * improved _pam_macros.h so that macros can be used as single commands
268 * reimplemented logging to avoid bad interactions with libc. Added
269 new functions, pam_[,v]system_log() to libpam's API. A programmer
270 can check for this function's availablility by checking if
271 HAVE_PAM_SYSTEM_LOG is #defined.
273 * removed the reduce conflict from pam_conv1 creation -- I can sleep
276 * made building of static and dynamic libpam separate. This is
277 towards making it possible to build both under Solaris (for Derrick)
279 * made USE_CRACKLIB a condition in unix module (Luke Kenneth Casson Leighton)
281 * automated (quiet) config installation (Andrey)
283 0.64: Thu Feb 19 23:30:24 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
285 * miscellaneous patches for building under Solaris (Derrick J Brashear)
287 * removed STATIC support from a number of module Makefiles. Notably,
288 these modules are those that use libpwdb and caused difficulties
289 satisfying the build process. (Please submit patches to fix this...;)
291 * reomved the union for binary packet conversations from
292 (_pam_types.h). This is now completely implemented in libpam_client.
294 * Andrey's patch for working environment variable handling in
297 * made the libpam_misc conversation function a bit more flexible with
298 respect to binary conversations.
300 * added top level define (DEBUG_REL) for compiling in the form of
301 a debugging release. I use this on a Red Hat 4.2 system with little
302 chance of crashing the system as a whole. (Andrey has another
303 implementation of this -- with a spec file to match..)
305 0.63: Wed Jan 28 22:55:30 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
307 * added libpam_client "convention" library. This makes explicit the
308 use of PAM_BINARY_PROMPT. It is a first cut, so don't take it too
309 seriously yet. Comments/suggestions for improvements are very
310 welcome. Note, this library does not compile by default. It will
311 be enabled when it is judged stable. The library comes with two
312 module/agent pairs and can be used with ssh using a patch available
313 from my pre-release directory [where you got this file.]
315 * backward compatibility patch for libpam/pam_handlers.c (PAM_IGNORE
316 was working with neither "requistie" nor "required") and a DEBUG'ing
317 compile time bug with pam_dispatch.c (Savochkin Andrey Vladimirovich)
319 * minor Makefile change from (Savochkin Andrey Vladimirovich)
321 * added pam_afsauth, pam_afspass, pam_restrict, and pam_syslog hooks
324 * pam_access use of uname(2) problematic (security problem
325 highlighted by Olaf Kirch).
327 * pam_listfile went a bit crazy reading group membersips (problem
328 highlighted by Olaf Kirch and patched independently by Cristian
329 Gafton and Savochkin Andrey Vladimirovich)
331 * compatibility hooks for solaris and hpux (Derrick J Brashear)
333 * 64 bit Linux/alpha bug fixed in pam_rhosts (Andrew D. Isaacson)
335 0.62: Wed Jan 14 14:10:55 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
337 * Derrick J Brashear's patches: adds the HP stuff missed in the first
338 patch; adds SunOS support; adds support for the Solaris native ld
339 instead of requiring gnu ld.
341 * last line of .rhosts file need not contain a newline. (Bug reported by
344 0.61: Thu Jan 8 22:57:44 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
346 * complete rewrite of the "control flag" logic. Formerly, we were
347 limited to four flags: requisite, required, sufficient, optional.
348 We can now use these keywords _and_ a great deal more besides.
349 The extra logic was inspired by Vipin Samar, a preliminary patch was
350 written by Andy Berkheimer, but I "had some ideas of my own" and
351 that's what I've actually included. The basic idea is to allow the
352 admin to custom build a control flag with a series of token=value
353 pairs inside square brackets. Eg., '[default=die success=ok]' which
354 is pretty close to a synonym for 'requisite'. I'll try to document it
355 better in the sys-admin guide but I'm pretty sure it is a change for
356 the better.... If what is in the sys-admin guide is not good enough
357 for you, just take a look at the source for libpam ;^)
359 0.59: Thu Jan 8 22:27:22 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
361 * better handling of empty lines in .rhosts file. (Formerly, we asked
362 the nameserver about them!) Fix from Hugh Daschbach.
364 * _broke_some_binary_compatibility_ with previous versions to become
365 compliant with X/Open's XSSO spec. Specifically, this has been
366 by changing the prototype for pam_strerror().
368 * altered the convention for the conversation mechanism to agree
369 with that of Sun. (number of responses 'now=' number of messages
370 with help from Cristian for finding a bug.. Cristian also found a
371 nasty speradic segfault bug -- Thanks!)
373 * added NIS+ support to pam_unix_*
375 * fixed a "regular file checking" problem with the ~/.rhosts sanity
376 check. Added "privategroup" option to permit group write permission
377 on the ~/.rhosts file in the case that the group owner has the same
378 name as the authenticating user. :*) "promiscuous" and "suppress"
381 * added glibc compatibility to pam_rhosts_auth (protected __USE_MISC
382 with #ifndef since my libc already defines it!).
384 * Security fix from Savochkin Andrey Vladimirovich with suggested
385 modification from Olaf Seibert.
387 * preC contains mostly code clean-ups and a number of changes to
392 * pam_getenvlist() has a more robust definition (XSSO) than was previously
393 thought. It would seem that we no longer need pam_misc_copy_env()
394 which was there to provide the robustness that pam_getenvlist()
397 Accordingly, I have REMOVED the prototype from libpam_misc. (The
398 function, however, will remain in the library as a wrapper for
399 legacy apps, but will likely be removed from libpam_misc-1.0.) PLEASE
400 FIX YOUR APPS *BEFORE* WE GET THERE!
402 * Alexy Nogin reported garbage output from pam_env in the case of
403 a non-existent environment variable.
405 * 'fixed' pwdb compilation for pam_wheel. Not very cleanly
406 done.. Mmmm. Should really clean up the entire source tree...
408 * added prototypes for mapping functions
412 various constants have had there names changed. Numerical values have
413 been retained but be aware some source old modules/applications will
414 need to be fixed before recompilation.
418 * appended documentation to README for pam_rhosts module (Nicolai
421 * verified X/Open compatibility of header files - note, where we differ
422 it is at the level of compilation warnings and the use of 'const char *'
423 instead of 'char *'. Previously, Sun(X/open) have revised their spec
424 to be more 'const'-ervative in the light of comments from Linux-PAM
427 * Ooops! PAM_AUTHTOKEN_REQD should have been PAM_NEW_AUTHTOK_REQD.
429 changed: pam_pwdb(pam_unix_acct) (also bug fix for
430 _shadow_acct_mgmt_exp() return value), pam_stress,
431 libpam/pam_dispatch, blank, xsh.
433 * New: PAM_AUTHTOK_EXPIRED - password has expired.
435 * Ooops! PAM_CRED_ESTABLISH (etc.) should have been PAM_ESTABLISH_CRED
436 etc... (changed - this may break some people's modules - PLEASE TAKE
438 changed: pam_group, pam_mail, blank, xsh; module and appl
439 docs, pam_setcred manual page.
441 * renamed internal _pam_handle structure to be pam_handle as per XSSO.
443 * added PAM_RADIO_TYPE (for multiple choice input method). Also
444 added PAM_BINARY_{MSG,PROMPT} (for interaction out of sight of user
445 - this could be used for RSA type authentication but is currently
446 just there for experimental purposes). The _BINARY_ types are now
447 usable with hooks in the libpam_misc conversation function. Still
448 have to add PAM_RADIO_TYPE.
450 * added pam_access module (Alexei Nogin)
452 * added documentation for pam_lastlog. Also modified the module to
453 not (by default) print "welcome to your new account" when it cannot
454 find a utmp entry for the user (you can turn this on with the
457 * small correction to the pam_fail_delay manual page. Either the appl or
458 the modules header file will prototype this function.
460 * added "bigcrypt" (DEC's C2) algorithm(0) to pam_pwdb. (Andy Phillips)
462 * *BSD tweaking for various #include's etc. (pam_lastlog, pam_rhosts,
463 pam_wheel, libpam/pam_handlers). (Michael Smith)
465 * added configuration directory $SCONFIGED for module specific
468 * added two new "linked" man pages (pam.conf(8) and pam.d(8))
470 * included a reasonable default for /etc/pam.conf (which can be
471 translated to /etc/pam.d/* files with the pam_conv1 binary)
473 * fixed the names of the new configuration files in
474 conf/pam_conv1/pam_conv.y
478 * pam_lastlog fixed to handle UID in virgin part of /var/log/lastlog
479 (bug report from Ronald Wahl).
481 * grammar fix in pam_cracklib
483 * segfault avoided in pam_pwdb (getting user). Updating of passwords
484 that are directed to a "new" database are more robust now (bug noted
485 by Michael K. Johnson). Added "unix" module argument for migrating
486 passwords from another database to /etc/passwd. (documentation
487 updated). Removed "bad username []" warning for empty passwords -
488 on again if you supply the 'debug' module argument.
490 * ctrl-D respected in conversation function (libpam_misc)
492 * Removed -DPAM_FAIL_DELAY_ON from top-level Makefile. Nothing in
493 the distribution uses it. I guess this change happened a while
494 back, basically I'm trying to make the module parts of the
495 distribution "source compatible" with the RFC definition of PAM.
496 This implementation of PAM is a superset of that definition. I have
497 added the following symbols to the Linux-PAM header files:
499 PAM_DATA_SILENT (see _pam_types.h)
500 HAVE_PAM_FAIL_DELAY (see _pam_types.h)
501 PAM_DATA_REPLACE (see _pam_modules.h)
503 Any module (or application) that wants to utilize these features,
504 should check (#ifdef) for these tokens before using the associated
505 functionality. (Credit to Michael K. Johnson for pointing out my
506 earlier omission: not documenting this change :*)
508 * first stab at making modules more independent of full library
509 source. Modules converted:
515 * pam_env.c: #include <errno.h> added to ease GNU libc use. (Michael
518 * pam_unix_passwd fixes to shadow aging code (Eliot Frank)
520 * added README for pam_tally
522 0.57: Fri Apr 4 23:00:45 PST 1997 Andrew Morgan <morgan@parc.power.net>
524 * added "nodelay" argument to pam_pwdb. This can be used to turn off
525 the call to pam_fail_delay that takes effect when the user fails to
526 authenticate themself.
528 * added "suppress" argument to pam_rhosts_auth module. This will stop
529 printing the "rlogin failure message" when the user does not have a
532 * Extra fixes for FAKEROOT in Makefiles (Savochkin Andrey
535 * pam_tally added to tree courtesy of Tim Baverstock
537 * pam_rhosts_auth was failing to read NFS mounted .rhosts
538 files. (Fixed by Peter Allgeyer). Refixed and further enhanced
539 (netgroups) by Nicolai Langfeldt. [Credit also to G.Wilford for some
540 changes that were not actually included..]
542 * optional (#ifdef PAM_READ_BOTH_CONFS) support for parsing of pam.d/
543 AND pam.conf files (Elliot Lee).
545 * Added (and signed) Cristian's PGP key. (I've never met him, but I am
546 convinced the key belongs to the guy that is making the PAM rpms and
547 also producing libpwdb. Please note, I will not be signing anyone
548 else's key without a personal introduction..)
550 * fixed erroneous syslog warning in pam_listfile (Savochkin Andrey
551 Vladimirovich, whole file reformatted by Cristian)
553 * modified pam_securetty to return PAM_IGNORE in the case that the user's
554 name is not known to the system (was previously, PAM_USER_UNKNOWN). The
555 Rationale is that pam_securetty's sole purpose is to prevent superuser
556 login anywhere other than at the console. It is not its concern that the
557 user is unknown - only that they are _not_ root. Returning
558 PAM_IGNORE, however, insures that the pam_securetty can never be used to
559 "authenticate" a non-existent user. (Cristian Gafton with bug report from
562 * Modified pam_nologin to display the no-login message when the user
563 is not known. The return value in this case is still PAM_USER_UNKNOWN.
564 (Bug report from Cristian Gafton)
566 * Added NEED_LCKPWD for pam_unix/ This is used to define the locking
567 functions and should only be turned on if you don't have them in
570 * tidied up pam_lastlog and pam_pwdb: removed function that was never used.
572 * Note for package maintainers: I have added $(FAKEROOT) to the list of
573 environment variables. This should help greatly when you build PAM
574 in a subdirectory. I've gone through the tree and tried to make
575 everything compatible with it.
577 * added pam_env (courtesy of Dave Kinchlea)
579 * removed pam_passwd+ from the tree. It has not been maintained in a
580 long time and running a shell script was basically insecure. I've
581 indicated where you can pick up the source if you want it.
583 * #define HAVE_PAM_FAIL_DELAY . Applications can conditionally compile
584 with this if they want to see if the facility is available. It is
585 now always available. (corresponding compilation cleanups..)
587 * _pam_sanitize() added to pam_misc. It purges the PAM_AUTHTOK and
588 PAM_OLDAUTHTOK items. (calls replaced in pam_auth and pam_password)
590 * pam_rhosts now knows about the '+' entry. Since I think this is a
591 dangerous thing, I have required that the sysadmin supply the
592 "promiscuous" flag for it in the corresponding configuration file
595 * FULL_LINUX_PAM_SOURCE_TREE exported from the top level make file.
596 If you want to build a module, you can test for this to determine if
597 it should take its directions from above or supply default locations
598 for installation. Etc.
600 0.56: Sat Feb 15 12:21:01 PST 1997 <morgan@parc.power.net>
602 * pam_handlers.c can now interpret the pam.d/ service config tree:
603 - if /etc/pam.d/ exists /etc/pam.conf is IGNORED
604 (otherwise /etc/pam.conf is treated as before)
606 . config files are named (in lower case) by service-name
607 . config files have same syntax as /etc/pam.conf except
608 that the "service-name" field is not present. (there
609 are thus three manditory fields (and arguments are
612 module-type control-flag module-path optional-args...
616 * included conf/pam_conv1 for converting pam.conf to a pam.d/ version
617 1.0 directory tree. This program reads a pam.conf file on the
618 standard input stream and creates ./pam.d/ (in the local directory)
619 and fills it with ./pam.d/"service-name" files.
621 *> Note: It will fail if ./pam.d/ already exists.
623 PLEASE REPORT ANY BUGS WITH THIS CONVERSION PROGRAM... It currently
624 cannot retain comments from the old conf file, so take care to do this
625 by hand. Also, please email me with the fix that makes the
626 shift/reduce conflict go away...
628 * Added default module path to libpam for modules (see pam_handlers.c)
629 it makes use of Makfile defined symbol: DEFAULT_MODULE_PATH which is
630 inhereted from the defs/* variable $(SECUREDIR). Removed module
631 paths from the sample pam.conf file as they are no longer needed.
633 * pam_pwdb can now verify read protected passwords when it is not run
634 by root. This is via a helper binary that is setuid root.
636 * pam_permit now prompts for a username if it is not already determined
638 * pam_rhosts now honors "debug" and no longer hardwire's "root" as the
641 * pam_securetty now honors the "debug" flag
643 * trouble parsing extra spaces fixed in pam_time and pam_group
645 * added Michael K. Johnson's PGP key to the pgp.keys.asc list
647 * pam_end->env not being free()'d: fixed
649 * manuals relocated to section 3
651 * fixed bug in pam_mail.c, and enhanced to recognize '~' as a prefix
652 to indicate the $HOME of the user (courtesy David
653 Kinchlea). *Changed* from a "session" module to an "auth"
654 module. It cannot be used to authenticate a user, but it can be used
655 in setting credentials.
657 * fixed a stupid bug in pam_warn.. Only PAM_SERVICE was being read :*(
659 * pam_radius rewritten to exclusively make use of libpwdb. (minor fix
660 to Makefile for cleaning up - AGM)
662 * pam_limits extended to limit the total number of logins on a system
665 * libpam and libpam_misc use $(MAJOR_REL) and $(MINOR_REL) to set their
666 version numbers [defined in top level makefile]
668 * bugfix in sed command in defs/redhat.defs (AGM's fault)
670 * The following was related to a possibility of buffer overruns in
671 the syslogging code: removed fixed length array from syslogging
672 function in the following modules [capitalized the log identifier
673 so the sysadmin can "know" these are fixed on the local system],
675 pam_ftp, pam_stress, pam_rootok, pam_securetty,
676 pam_listfile, pam_shells, pam_warn, pam_lastlog
678 pam_unix_passwd (where it was definitely _not_ exploitable)
680 0.55: Sat Jan 4 14:43:02 PST 1997, Andrew Morgan <morgan@parc.power.net>
682 * added "requisite" control_flag to /etc/pam.conf syntax. [See
683 Sys. Admin. Guide for explanation] changes to pam_handlers.c
685 * completely new handling of garbled pam.conf lines. The modus
686 operandi now is to assume that any errors in the line are minor.
687 Errors of this sort should *most definitely* lead to the module
688 failing, however, just ignoring the line (as was the case
689 previously) can lead to gaping security holes(! Not foreseen by the
690 RFC). The "motivation" for the RFC's comments about ignoring garbled
691 lines is present in spirit in the new code: basically a garbled line
692 is treated like an instance of the pam_deny.so module.
693 changes to pam_handlers.c and pam_dispatch.c .
695 * patched libpam, to (a) call _pam_init_handlers from pam_start() and
696 (b) to log a text error if there are no modules defined for a given
697 service when a call to a module is requested. [pam_start() and
698 pam_dispatch() were changed].
700 * patched pam_securetty to deal with "/dev/" prefix on PAM_TTY item.
702 * reorganized the modules/Makefile to include *ALL* modules. It is now
703 the responsibility of the modules themselves to test whether they can
704 be compiled locally or not.
706 * modified pam_group to add to the getgroups() list rather than overwrite
707 it. [In the case of "HAVE_LIBPWDB" we use the pwdb_..() calls to
708 translate the group names.]. Module now pays attention to
711 * identified and removed bugs in field reading code of pam_time and
714 * Cristian's patches to pam_listfile module, corresponding change to
717 * I've discovered &ero; for sgml!
718 Added pam_time documentation to the admin guide.
720 * added manual pages: pam.8, pam_start.2(=pam_end.2),
721 pam_authenticate.2, pam_setcred.2, pam_strerror.2,
722 pam_open_session.2(=pam_close_session.2) and pam_chauthtok.2 .
726 - pam_mail (tells the user if they have any new mail
727 and sets their MAIL env variable)
728 - pam_lastlog (reports on the last time this user called
731 * new module hooks provided.
733 * added a timeout feature to the conversation function in
734 libpam_misc. Documented it in the application developers' guide.
736 * fixed bug in pam_misc_paste_env() function..
738 * slight modifications to wheel and rhosts writeup.
740 * more security issues added to module and application guides.
743 Things present but not mentioned in previous release (sorry)
745 * pam_pwdb module now resets the "last_change" entry before updating a
749 Sat Nov 30 19:30:20 PST 1996, Andrew Morgan <morgan@parc.power.net>
751 * added environment handling to libpam. involved change to _pam_types.h
752 also added supplementary functions to libpam_misc
754 * added pam_radius - Cristian
756 * slight speed up for pam_rhosts
758 * significantly enhanced sys-admin documentation (8 p -> 41 p in
759 PostScript). Added to other documentation too. Mostly the changes
760 in the other docs concern the new PAM-environment support, there is
761 also some coverage of libpam_misc in the App. Developers' guide.
763 * Cristian's patches to pam_limits and pam_pwdb. Fixing bugs. (MORE added)
765 * adopted Cristian's _pam_macros.h file to help with common macros and
766 debugging stuff, gone through tree tidying up debugging lines to use
769 - for consistency replaced DROP() with _pam_drop()
771 * commented memory debugging in top level makefile
773 * added the following modules
775 - pam_warn log information to syslog(3) about service application
776 - pam_ftp if user is 'ftp' then set PAM_RUSER/PAM_RHOST with password
777 (comment about nologin added to last release's notes)
779 * modified the pam_listfile module. It now declares a meaningful static
782 Sun Nov 10 13:26:39 PST 1996, Andrew Morgan <morgan@parc.power.net>
784 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
786 -------> http://parc.power.net/morgan/Linux-PAM/index.html <-------
788 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
790 A brief summary of what has changed:
792 * many modules have been modified to accomodate fixing the pam_get_user()
793 change. Please take note if you have a module in this distribution.
795 * pam_unix is now the pam_unix that Red Hat has been using and which
796 should be fairly well debugged.
798 - I've added some #ifdef's to make it compile for me, and also
799 updated it with respect to the libpam-0.53, so have a look at the
800 .../modules/pam_unix/Makefile to enable cracklib and shadow features
802 ** BECAUSE OF THIS, I cannot guarantee this code works as it **
803 ** did for Red Hat. Please test and report any problems. **
805 * the pam_unix of .52 (renamed to pam_pwdb) has been enhanced and made
806 more flexible with by implementing it with respect to the new
807 "Password Database Library" see
809 http://parc.power.net/morgan/libpwdb/index.html
811 modules included in this release that require this library to
812 function are the following:
814 - pam_pwdb (ne pam_unix-0.52 + some enhancements)
819 * Added some optional code for memory debugging. In order to support
820 this you have to enable MEMORY_DEBUG in the top level makefile and
821 also #define MEMORY_DEBUG in your applications when they are compiled.
822 The extra code resides in libpam (compiled if MEMORY_DEBUG is defined)
823 and the macros for malloc etc. are to be found at the end of
826 * used above code to locate two memory leaks in pam_unix module and two
827 in libpam (pam_handlers.h)
829 * pam_get_user() now sets the PAM_USER item. After reading the Sun
830 manual page again, it was clear that it should do this. Various
831 modules have been assuming this and now I have modified most of them
832 to account for this change. Additionally, pam_get_user() is now
833 located in the module include file; modules are supposed to be the
834 ones that use it(!) [Note, this is explicitly contrary to the Sun
835 manual page, but in the spirit of the Linux distribution to date.]
837 * replaced -D"LINUX" with -D"LINUX_PAM" as this is more explicit and less
838 likely to be confused with -D"linux".
839 Also, modified the libpam #include files to behave more like the Sun
840 ones #ifndef LINUX_PAM.
842 * removed <bf/ .. / from documentation titles. This was not giving
843 politically correct html..
845 ----- My vvvvvvvvvvvvvvvvvvv was a long time ago ;*] -----
847 Wed Sep 4 23:57:19 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>
849 0. Before I begin, Linux-PAM has a new primary distribution site (kindly
850 donated by Power Net Inc., Los Angeles)
852 **PLEASE AMMEND YOUR PERSONAL LINKS**
854 -------> http://www.power.net/morgan/Linux-PAM <-------
856 **PLEASE AMMEND YOUR PERSONAL LINKS**
858 1. I'm hoping to make the next release a bug-fix release... So please find
861 2. here are the changes for .52:
863 * minor changes to module documentation [Incidently, it is now
864 available on-line from the WWW page above]. More changes to follow in
865 the next two releases. PLEASE EMAIL me or the list if there is
866 anything that isn't clear!
868 * completely changed the unix module. Now a single module for all four
869 management groups (this meant that I could define all functions as
870 static that were not part of the pam_sm_... scheme. AGM)
872 - Shadow support added
873 PASSWD - Elliot's account management included, and enhanced by Cristian Gafton.
874 - MD5 password support added by Cristian Gafton.
875 - maxtries for authentication now enforced.
876 - Password changing function in pam_unix now works!
877 Although obviously, I'm not going to *guarantee* it ;^) .
878 - stole Marek's locking code from the Red Hat unix module.
879 [ If you like you can #ifdef it in or out ... ]
881 You can configure the module more from its Makefile in
882 0.52/modules/pam_unix/
884 If you are nervous that it will destroy your /etc/passwd or shadow
885 files then EDIT the 0.52/modules/pam_unix/pam_unix_pass.-c file.
886 Here is the warning comment from this file...
888 -------------8<-----------------
891 * Uncomment the following #define if you are paranoid, and do not
892 * want to risk losing your /etc/passwd or shadow files.
893 * It works for me (AGM) but there are no guarantees.
897 /* #define TMP__FILE */
898 ------------->8-----------------
900 *** If anyone has any trouble, please *say*. Your problem will be
901 fixed in the next release. Also please feel free to scour the
902 code for race conditions etc...
904 [* The above change requires that you purge your /usr/lib/security
905 directory of the old pam_unix_XXX.so modules: they will NOT be deleted
906 with a 'make remove'.]
908 * the prototype for the cleanup function supplied to pam_set_data used
909 to return "int". According to Sun it should be "void". CHANGED.
911 * added some definitions for the 'error_status' mask values that are
912 passed to the cleanup function associated with each
913 module-data-item. These numbers were needed to keep up with changing
914 a data item (see for example the code in pam_unix/support.-c that
915 manages the maximum number of retries so far). Will see what Sun says
916 (current indications are positive); this may be undone before 1.0 is
917 released. Here are the definitions (from pam_modules.h).
919 #define PAM_DATA_SILENT 0x40000000 /* used to suppress messages... */
920 #define PAM_DATA_REPLACE 0x20000000 /* used when replacing a data item */
922 * Changed the .../conf/pam.conf file. It now points to the new
923 pam_unix module for 'su' and 'passwd' [can get these as SimpleApps --
924 I use them for testing. A more extensive selection of applications is
925 available from Red Hat...]
927 * corrected a bug in pam_dispatch. Basically, the problem was that if
928 all the modules were "sufficient" then the return value for this
929 function was never set. The net effect was that _pam_dispatch_aux
930 returned success when all the sufficient modules failed. :^( I think
931 this is the correct fix to a problem that the Red Hat folks had
934 sopwith* Removed advisory locking from libpam (thanks for the POSIX patch
935 goes to Josh Wilmes's, my apologies for not using it in the
936 end.). Advisory locking did not seem sufficiently secure for libpam.
937 Thanks to Werner Almesberger for identifying the corresponding "denial
938 of service attack". :*(
940 * related to fix, have introduced a lock file /var/lock/subsys/PAM
941 that can be used to indicate the system should pay attention to
942 advisory locking on /etc/pam.conf file. To implement this you need to
943 define PAM_LOCKING though. (see .52/libpam)
945 * modified pam_fail_delay() function. Couldn't find the "not working"
946 problem indicated by Michael, but modified it to do pseudo-random
947 delays based on the values indicated by pam_fail_delay() -- the
948 function "that may eventually go away"... Although Sun is warming to
951 * new modules include:
953 pam_shells - authentication for users with a shell listed in
954 /etc/shells. Erik Troan <ewt@redhat.com>
956 pam_listfile - authentication based on the contents of files.
957 Set to be more general than the above in the
958 future. UNTESTED. Elliot Lee <@redhat.com>
959 [Note, this module compiles with a non-trivial
962 Thu Aug 8 22:32:15 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
964 * modified makefiles to take more of their installation instructions
965 from the top level makefile. Desired for integration into the Debian
966 distribution, and generally a good idea.
968 * fixed memory arithmetic in pam_handlers
969 -- still need to track down why failure to load modules can lead to
970 authentication succeding..
972 * added tags for new modules (smartcards from Alex -- just a promise
973 at this stage) and a new module from Elliot Lee; pam_securetty
975 * I have not had time to smooth out the wrinkles with it, but Alex's
976 pam_unix modifications are provided in pam_unix-alex (in the modules
977 directory) they will not be compiled by 'make all' and I can't even
978 say if they do compile... I will try to look at them for .52 but, in
979 the mean time please feel free to study/fix/discuss what is there.
981 * pam_rhosts module. Removed code for manually setting the ruser
982 etc. This was not very secure.
984 * [remade .ps docs to be in letter format -- my printer complains
987 Sunday July, 7 12:45:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
989 * No longer accompanying the Linux-PAM release with apps installed.
990 [Will provide what was here in a separate package.. (soon)
991 lib Also see http://www.redhat.com/pam for some more (in .rpm form...)]
993 * renamed libmisc to libpam_misc. It is currently configured to only compile
994 the static library. For some strange reason (perhaps someone can
995 investigate) my Linux 2.0.0 kernel with RedHat 3.0.3 system
996 segfaults when I compile it to be a dynamic library. The segfault
997 seems to be inside the call to the ** dl_XXX ** function...!?
999 There is a simple flag in the libpam_misc/Makefile to turn on dynamic
1002 * Added a little unofficial code for delay support in libpam (will probably
1003 disappear later..) There is some documentation for it in the pam_modules
1004 doc now. That will obviously go too.
1006 * rewritten pam_time to use *logic* to specify the stringing together of
1007 users/times/terminals etc.. (what was there before was superficially
1008 logical but basically un-predictable!)
1010 * added pam_group. Its syntax is almost identical to pam_time but it
1011 has another field added; a list of groups to make the user a member
1012 of if they pass the previous tests. It seems to not co-exist too well
1013 with the groups in the /etc/group but I hope to have that fixed by
1016 * minor re-formatting of pam_modules documentation
1018 * removed ...// since it wasn't being used and didn't look like it
1021 GCCSunday 23 22:35:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1023 * The major change is the addition of a new module: pam_time for
1024 restricting access on terminals at given times for indicated users
1025 it comes with its own configuration file /etc/security/time.conf
1026 and the sample file simply restricts 'you' from satisfying the blank
1027 application if they try to use blank from any tty*
1029 * Small changes include
1030 - altered pam.conf to demonstrate above new module (try typing username: you)
1031 - very minor changes to the docs (pam_appl and pam_modules)
1033 Saturday June 2 01:40:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1035 *** PLEASE READ THE README, it has changed ***
1037 * NOTE, 'su' exhibits a "system error", when static linking is
1038 used. This is because the pam_unix_... module currently only has
1039 partial static linking support. This is likely to change on Monday
1040 June 3, when Alex makes his latest version availible. I will include
1041 the updated module in next release.
1045 * modified the way in which libpam/pam_modules.h defines prototypes for
1046 the pam_sm_ functions. Now the module must declare which functions it
1047 is to provide *before* the #include <security/pam_modules.h> line.
1048 (for contrasting examples, see the pam_deny and pam_rootok modules)
1049 This removed the ugly hack of defining functions that are never called
1050 to overcome warnings... This seems much tidier.
1051 insterted* updated the TODO list. (changed mailing list address)
1052 * updated README in .../modules to reflect modifications to static
1053 compliation protocol
1054 * modified the pam_modules documentation to describe this.
1055 * corrected last argument of pam_get_item( ... ) in
1056 pam_appl/modules.sgml, to "const void **".
1057 * altered GNU GPL's in the documentation, and various other parts of
1058 the distribution. *Please check* that any code you are responsible for
1060 * Added ./Copyright (please check that it is acceptable)
1061 * updated ./README to make current and indicate the new mailing list
1063 * have completely rewritten pam_filter. It now runs modular filter
1064 executables (stored in /usr/sbin/pam_filter/) This should make it
1065 trivial for others to write their own filters.. If you want yours
1066 included in the distribution please email the list/me.
1067 * changes to libpam; there was a silly bug with multiple arguments on a
1068 pam.conf line that was broken with a '\<LF>'.
1069 * 'su' rearranged code (to make better use of PAM)
1070 *Also* now uses POSIX signals--this should help the Alpha port.
1071 * 'passwd' now uses getlogin() to determine who's passwords to change.
1073 Sunday May 26 9:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1075 * fixed module makefiles to create needed dynamic/static subdirectories
1077 Saturday May 25 20:30:27.8 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1079 * LOTS has changed regarding how the modules/libpam are built.
1080 * Michael's mostly complete changes for static support--see below
1081 (Andrew got a little carried away and automated the static linking
1082 of modules---bugs are likely mine ;( )
1083 * Thanks mostly to Michael, libpam now compiles without a single warning :^]
1084 * made static modules/library optional.
1085 CFLAGS* added 'make sterile' to top level makefile. This does extraclean and remove
1086 * added Michael and Joseph to documentation credits (and a subsection for
1087 future documentation of static module support in pam_modules.sgml)
1088 * libpam; many changes to makefiles and also automated the inclusion of
1089 static module objects in pam_static.c
1090 * modified modules for automated static/dynamic support. Added static &
1091 dynamic subdirectories, as instructed by Michael
1092 * removed an annoying syslog message from pam_filter: "parent exited.."
1093 * updated todo list (anyone know anything about svgalib/X? we probably should
1094 have some support for these...)
1096 Friday May 24 16:30:15 EDT 1996 (Michael K. Johnson <johnsonm@redhat.com>)
1098 * Added first (incomplete) cut at static support.
1100 . changes in libpam, including a new file, pam_static.c
1101 . changes to modules including exporting struct of function pointers
1102 . static and dynamic linking can be combined
1103 . right now, the only working combinations are just dynamic
1104 linking and dynamic libpam.so with static modules linked
1105 into libpam.so. That's on the list of things to fix...
1106 . modules are built differently depending on whether they
1107 are static or dynamic. Therefore, there are two directories
1108 under each module directory, one for static, and one for
1110 * Fixed random brokenness in the Makefiles. [ foo -nt bar ] is
1111 rather redundant in a makefile, for instance. Also, passing
1112 on the command line is broken because it cannot be
1113 overridden in any way (even adding important parts) in lower-level
1115 * Unfortunately, fixing some of the brokenness meant that I used
1116 GNU-specific stuff. However, I *think* that there was GNU-specific
1117 stuff already. And I think that we should just use the GNU
1118 extensions, because any platform that GNU make doesn't port to
1119 easily will be hard to port to anyway. It also won't be likely
1120 passwd to handle autoconf, which was Ted's suggestion for getting
1121 around limitations in standard make...
1122 For now, I suggest that we just use some simple GNU-specific
1125 Monday May 20 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1127 * added some text to pam_modules.sgml
1128 * corrected Marek's name in all documentation
1129 * made pam_stress conform to chauthtok conventions -- ie can now request
1130 old password before proceeding.
1131 * included Alex's latest unix module
1132 * included Al's + password strength checking module
1133 * included pam_rootok module
1134 * fixed too many bugs in libpam.. all subtly related to the argument lists
1135 or use of syslog. Added more debugging lines here too.
1136 * fixed the pam.conf file
1137 * deleted pam_test module. It is pretty old and basically superceeded
1140 Friday May 9 1:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1142 * updated documentaion, added Al Longyear to credits and corrected the
1143 spelling of Jeff's name(!). Most changes to pam.sgml (even added a figure!)
1144 * new module pam_rhosts_auth (from Al Longyear)
1145 * new apps rlogind and ftpd (a patch) from Al.
1146 * modified 'passwd' to not call pam_authenticate (note, none of the
1147 modules respect this convention yet!)
1148 * fixed bug in libpam that caused trouble if the last line of a
1149 pam.conf file ends with a module name and no newline character
1150 * also made more compatable with documentation, in that bad lines in
1151 pam.conf are now ignored rather than causing libpam to return an
1153 * libpam now overwrites the AUTHTOKs when returning from
1154 pam_authenticate and pam_chauthtok calls (as per Sun/RFC too)
1155 * libpam is now installed as libpam.so.XXX in a way that ldconfig can
1159 Wednesday May 1 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1161 * removed .../test directory, use .../examples from now on.
1162 * added .../apps directory for fully functional applications
1163 - the apps directory contains directories that actually contain the apps.
1164 the idea is to make application compilation conditional on the presence
1165 of the directory. Note, there are entries in the Makefile for
1166 'login' and 'ftpd' that are ready for installation... Email me if
1167 you want to reserve a directory name for an application you are
1169 * similar changes to .../modules makefile [entries for pam_skey and
1170 pam_kerberos created---awaiting the directories.] Email me if you
1171 want to register another module...
1172 * minor changes to docs.. Not really worth reprinting them quite yet!
1174 * added misc_conv to libmisc. it is a generic conversation function
1175 for text based applications. [would be nice to see someone create
1176 an Xlib and/or svgalib version]
1177 * fixed ctrl-z/c bug with pam_filter module [try xsh with the default
1179 * added 'required' argument to 'pam_stress' module.
1180 * added a TODO list... other suggestions to the list please.
1182 Saturday April 7 00:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1184 * Alex and Marek please note I have altered _pam_auth_unix a little, to
1185 make it get the passwords with the "proper method" (and also fixed it
1186 to not have as many compiler warnings)
1187 * updated the conf/pam.conf file
1188 * added new example application examples/xsh.c (like blank but invokes
1190 * Marc's patches for examples/blank.c (and AGM's too)
1191 * fixed stacking of modules in libpam/pam_handlers.c
1192 * fixed RESETing in libpam/pam_item.c
1193 * added new module modules/pam_filter/ to demonstrate the possibility
1194 of inserting an arbitrary filter between the terminal and the
1195 application that could do customized logging etc... (see use of
1196 bin/xsh as defined in conf/pam.conf)
1199 Saturday March 16 19:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1201 These notes are for 0.3 I don't think I've left anything important
1202 out, but I will use emacs 'C-x v a' next time! (Thanks Jeff)
1204 * not much has changed with the functionality of the Linux-PAM lib
1206 - pam_password calls module twice with different arguments
1207 - added const to some of the function arguments
1208 - added PAM_MAX_MES_ to <security/_pam_types.h>
1209 - was a lot over zealous about purging old passwords...
1210 I have removed much of this from source to make it
1211 more compatible with SUN.
1212 - moved some PAM_... tokens to pam_modules.h from _pam_types.h
1213 (no-one should notice)
1215 * added three modules: pam_permit pam_deny pam_stress
1216 no prizes for guessing what the first two do. The third is
1217 a reasonably complete (functional) module. Is intended for testing
1220 * fixed a few pieces of examples/blank.c so that it works (with
1223 * ammended the documentation. Looking better, but suggestions/comments
1226 Sunday March 10 10:50:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1228 These notes are for Linux-PAM release 0.21. They cover what's changed
1229 since I relased 0.2.
1232 * substantially changed ./README
1233 * fixed bug reading \\\n in pam.conf file
1234 * small changes to documentation
1235 * added `blank' application to ./examples (could be viewed as
1236 a `Linux-PAM aware' application template.)
1237 * oops. now including pam_passwd.o and pam_session.o in pamlib.so
1238 * compute md5 checksums for all the source when making a release
1239 - added `make check' and `make RCScheck' to compute md5 checksums
1240 * create a second tar file with all the RCS files in.
1241 * removed the .html and .txt docs, supplying sgml sources instead.
1242 - see README for info on where to get .ps files
1244 Thursday March 6 0:44:?? PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1246 These notes are for Linux-PAM release 0.2. They cover what's changed
1247 since Marc Ewing relased 0.1.
1249 **** Please note. All of the directories in this release have been modified
1250 **** slightly to conform to the new pamlib. A couple of new directories have
1251 **** been added. As well as some documentation. If some of your code
1252 **** was in the previous release. Feel free to update it, but please
1253 **** try to conform to the new headers and Makefiles.
1255 * Andrew Morgan (morgan@physics.ucla.edu) is making this release
1256 availible, Marc has been busy...!
1258 * Marc's pam-0.1/lib has been (quietly) enhanced and integrated into
1259 Alex Yurie's collected tree of library and module code
1260 (linux-pam.prop.1.tar.gz). Most of the changes are to do with error
1261 checking. Some more robustness in the reading of the pam.conf file
1262 and the addition of the pam_get_user() function.
1264 * The pam_*.h files have been reorganized to logically enforce the
1265 separation of modules from applications. [Don't panic! Apart from
1266 changing references of the form
1268 #include "pam_appl.h"
1272 #include <security/pam_appl.h>
1274 The reorganization should be backwardly compatable (ie. a module
1275 written for SUN will be as compatable as it was before with the
1276 previous version ;)~ ]
1278 (All of the source in this tree now conforms to this scheme...)
1280 The new reorganization means that modules can be compiled with a
1281 single header, <security/pam_modules.h>, and applications with
1282 <security/pam_appl.h>.
1284 * I have tried to remove all the compiler warnings from the updated
1285 "pamlib/*.c" files. On my system, (with a slightly modified <dlfcn.h>
1286 email me if it interests you..) there are only two warnings that
1287 remain: they are that ansi does not permit void --> fn ptr
1288 assignment. K&Rv2 doesn't mention this....? As a matter of principle,
1289 if anyone knows how to get rid of that warning... please
1290 tell. Thanks! "-pedantic"
1292 * you can "make all" as a plain user, but
1294 * to "make install" you must be root. The include files are placed in
1295 /usr/include/security. The libpam.so library is installed in /usr/lib
1296 and the modules in /usr/lib/security. The two test binaries
1297 are installed in the Linux-PAM-0.2/bin directory and a chance is given to
1298 replace your /etc/pam.conf file with the one in Linux-PAM-0.2/conf.
1300 * I have included some documentation (pretty preliminary at the
1301 moment) which I have been working on in .../doc .
1303 I have had a little trouble with the modules, but atleast there are no
1304 segfaults! Please try it out and discuss your results... I actually
1305 hope it all works for you. But, Email any bugs/suggestions to the
1306 Linux-PAM list: linux-pam@mit.edu .....
1311 (morgan@physics.ucla.edu)
1314 Sat Feb 17 17:30:24 EST 1996 (Alexander O. Yuriev alex@bach.cis.temple.edu)
1316 * conf directory created with example of pam_conf
1317 * stable code from pam_unix is added to modules/pam_unix
1318 * test/test.c now requests username and password and attempts
1319 to perform authentication