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 * removed comments about pam_unix not working with pam_cracklib,
39 added information about use_authtok parameter (Bug 124388 - baggins)
40 * fixed wrong definition of struct pam_module (was pam_wheel)
41 (Bug 124386 - baggins)
42 * fixed example/Makefile include path (Bug 124187 - agmorgan)
43 * pam_userdb compiles on RH5x. Also removed circular dependency on
44 configure.in. Also bumped revision number to 0.74. (Bug 124136 -
47 0.73: Sat Dec 2 00:04:04 PST 2000
49 * updated documentaion revisions and added 'make release' support
50 to the top level Makefile (Bug 124132 - agmorgan).
51 * documented Qmail support in pam_mail (Bug 109219 - baggins)
52 * add change_uid option to pam_limits, and set real uid only if
53 this option is present (Bug 124062 - baggins)
54 * pam_limits - set real uid to the user for who we set limits.
55 (Bug 123972 - baggins)
56 * removed static variables from pam_limits (thread safe now). (Bug
58 * removed static variable from pam_wheel (module should be thread safe
59 now). (Bug 112906 - agmorgan)
60 * added support for '/' symbols in pam_time and pam_group config files
61 (support for modern terminal devices). Fixed infinite loop problem
62 with '\\[^\n]' in these files. (Bug 116076 - agmorgan)
63 * avoid potential SIGPIPE when writing to helper binaries with (Bug
65 * replaced bogus logic in the pam_cracklib module for determining if
66 the replacement is too similar to the old password (Bug 115055 -
68 * added accessconf=<filename> feature to pam_access - request from
69 Aldrin Martoq and Meelis Roos (Bugs 111927,117240 - agmorgan)
70 * fix for pam_limit module not dealing with all limits Adam J. Richter
71 (Bug 119554 - agmorgan)
72 * comment fix describing fail_delay callback in _pam_types.h (Bug
74 * "likeauth" fix for pam_unix and pam_pwdb which (Bug 113596 - agmorgan)
75 * fix for pam_unix (support.c) to avoid segfault with NULL password
77 * fix to pam_unix_passwd: try repeatedly to get a lock on the password
78 file, instead of failing immediately (Bug 108845 - fix vorlon)
79 * fix to pam_shells: logged information was not formatted correctly
80 (extra comma) (Bug 111491 - fix vorlon)
81 * fix for C++ application support (Bug 111645 - fix agmorgan)
82 * fix for typo in pam_client.h (Bug 111648 - fix agmorgan)
83 * removal of -lpam from pam_mkhomedir Makefile (Bug 116380 - fix agmorgan)
84 * autoconf support [Task ID 15788, Bug ID 108297 - agmorgan with help!]
85 - bugfix for libpamc.h include file [Bug ID 117476 - agmorgan]
86 - bugfix for pam_filter.h inclusion [Bug ID 117474 - agmorgan]
88 0.72: Mon Dec 13 22:41:11 PST 1999
90 * patches from Debian (Ben Collins): pam_ftp supports event driven
91 conversations now; pwdb_chkpwd cleanup; pam_warn static compile fix;
92 user_db compiler warnings removed; debian defs file; pam_mail can
93 now be used as a session module
94 * ndbm compilation option for user_db module (fix explained by Richard Khoo)
95 * pam_cracklib bug fix
96 * packaging fixes & build from scratch stuff (Konst Bulatnikov & Frodo
98 * -ldl appended to the libpam.so compilation make rule. (Charles Seeger)
99 * Red Hat security patch for pam_pwdb forwarded by Debian! (Ben
100 Collins. Fix provided by Andrey as it caught the problem earlier in the
102 * heuristic to prevent leaking filedescriptors to an agent. [This needs
103 to be better supported perhaps by an additional libpamc API function?]
104 * pam_userdb segfault fix from (Ben Collins)
105 * PAM draft spec extras added at request of 'sen_ml'
107 0.71: Sun Nov 7 20:21:19 PST 1999
109 * added -lc to linker pass for pam_nologin module (glibc is weird).
110 * various header changes to lower the number of warnings on glibc
111 systems (Dan Yefimov)
112 * merged a bunch of Debian fixes/patches/documentation (Ben Collins)
113 things touched: libpam (minor); doc/modules/pam_unix.sgml; pam_env
114 (plus docs); pam_mkhomedir (new module for new home directories on
115 the fly...); pam_motd (new module); pam_limits (adjust to match
116 docs); pam_issue (new module + doc) [Some of these were also
117 submitted by Thorsten Kukuk]
118 * small hack to lower the number of warnings that pam_client.h was
120 * debian and SuSE apparently can use the pam_ftp module, so
121 removed the obsolete comment about this from the docs. (Thorsten
124 0.70: Fri Oct 8 22:05:30 PDT 1999
126 * bug fix for parsing of value=action tokens in libpam/pam_misc.c was
127 segfaulting (Jan Rekorajski and independently Matthew Melvin)
128 * numerous fixes from Thorsten Kukuk (icluding much needed fixes for
129 bitrot in modules and some documentation) that got included in SuSE 6.2.
130 * reentrancy issues in pam_unix and pam_cracklib resolved (Jan Rekorajski)
131 * added hosts_equiv_rootok module option to pam_rhosts module (Tim Berger)
132 * added comment about 'expose_account' module argument to admin and
133 module writers' docs (request from Michael K Johnson).
134 * myriad of bug fixes for libpamc - library now built by default and
135 works with the biomouse fingerprint scanner agent/module
136 (distributed separately).
138 0.69: Sun Aug 1 20:25:37 PDT 1999
140 * c++ header #ifdef'ing for pam_appl.h (Tuomo Pyhala)
141 * added pam_userdb module (Cristian Gafton)
142 * minor documentation changes
143 * added in revised pam_client library (libpamc). Not installed by
144 default yet, since the example agent/module combo is not very secure.
145 * glibc fixes (Thorsten Kukuk, Adam J. Richter)
147 0.68: Sun Jul 4 23:04:13 PDT 1999
149 * completely new pam_unix module from Jan Rekorajski and Stephen Langasek
150 * Jan Rekorajski pam_mail - support for Maildir format mailboxes
151 * Jan Rekorajski pam_cracklib - support for old password comparison
152 * Jan Rekorajski bug fix for pam_pwdb setcred reusing auth retval
153 * Andrey's pam_tally patch (lstat -> fstat)
154 * Robert Milkowski's additional pam_tally patches to **change format of
155 /var/log/faillog** to one from shadow-utils, add new option "per_user"
156 for pam_tally module, failure time logging, support for fail_line
157 field, and support for fail_locktime field with new option
159 * pam_tally: clean up the tally application too.
160 * Marcin Korzonek added process priority settings to pam_limits (bonus
161 points for adding to documentation!)
162 * Andrey's pam_pwdb patch (cleanup + md5 endian fubar fix)
163 * more binary prompt preparations (make misc conv more compatible with spec)
164 * modified callback hook for fail delay to be more useful with event
165 driven applications (changed function prototype - suspect no one
166 will notice). Documented this in app developer guide.
167 * documentation for pam_access from Tim Berger
168 * syntax fixes for the documentation - a long time since I've built it :*(
169 added some more names to the CREDITS file.
171 0.67: Sat Jun 19 14:01:24 PDT 1999
173 * [dropped libpam_client - libpamc will be in the next release and
174 conforms to the developing spec in doc/specs/draft-morgan-pam.raw.
175 Sorry if you are keeping a PAM tree in CVS. CVS is a pain for
176 directories, but this directory was actually not referenced by
177 anything so the disruption should be light.]
178 * updates to pam_tally from Tim
179 * multiple updates from Stephen Langasek to pam_unix
180 * pam_filter had some trouble compiling (bug report from Sridhar)
181 * pam_wheel now attempts to identify the wheel group for the local
182 system instead of blindly assuming it is gid=0. In the case that
183 there is no "wheel" group, we default to assuming gid=0 is what was
184 meant - former behavior. (courtesy of Sridhar)
185 * NIS+ changes to pam_unix module from Dmitry O Panov
186 * hopefully, a fix for redefinition of LOG_AUTHPRIV (bug report Luke
187 Kenneth Casson Leighton)
188 * fix for minor typo in pam_wheel documentation (Jacek Kopecky)
189 * slightly more explanation of the [x=y] pam.conf syntax in the sys
192 0.66: Mon Dec 28 20:22:23 PST 1998 <morgan@linux.kernel.org>
194 * Started using cvs to keep track of changes to Linux-PAM. This will
195 likely break some of the automated building stuff (RPMs etc..).
196 * security bug fix to pam_unix and pam_tally from Andrey.
197 * modules make file is now more automatic. It should be possible to
198 unpack an external module in the modules directory and have it automatically
199 added to the build process. Also added a modules/download-all script
200 that will make such downloading easier. I'm happy to receive patches to
201 this file, informing the distribution of places from which to enrich itself.
202 * removed pam_system_log stuff. Thought about it long and hard: a
203 bad idea. If libc cannot guarantee a thread safe syslog, it needs
204 to be fixed and compatibility with other PAM libraries was
205 unnecessarily strained.
206 * SAG documentation changes: Seth Chaiklin
207 * rhosts: problems with NIS lookup failures with the root-uid check.
208 As a work-around, I've partially eliminated the need for the lookup
209 by supplying two new arguments: no_uid_check, superuser=<username>.
210 As a general rule this is more pluggable, since this module might be
211 used as an authentication scheme for a network service that does not
212 need root privilege...
213 * authenticate retval -> setcred for pam_pwdb (likeauth arg).
214 * pam_pwdb event driven support
215 * non openlog pam_listfile logging
216 * BUGFIX: close filedescriptor in pam_group and pam_time (Emmanuel Galanos)
217 * Chris Adams' mailhash change for pam_mail module
218 * fixed malloc failure check in pam_handlers.c (follow up to comment
220 * update to _pam_compat.h (Brad M. Garcia)
221 * support static modules in libpam again (Brad M. Garcia)
222 * libpam/pam_misc.c for egcs to grok the code (Brad M. Garcia)
223 * added a solaris-2.5.1 defs file (revived by Derrick J Brashear)
224 * pam_listfile logs failed attempts
225 * added a comment (Michael K Johnson pointed it out) about sgml2latex
226 having a new syntax. I'll make it the change real when I upgrade...
227 * a little more text to the RFC, spelling fix from William J Buffam.
228 * minor changes to pam_securetty to accommodate event driven support.
230 0.65: Sun Apr 5 22:29:09 PDT 1998 <morgan@linux.kernel.org>
232 * added event driven programming extensions to libpam
233 - added PAM_INCOMPLETE handling to libpam/pam_dispatch.c
234 - added PAM_CONV_AGAIN which is a new conversation response that
235 should be mapped to PAM_INCOMPLETE by the module.
236 - ensured that the pam_get_user() function can resume
237 - changes to pam_strerror to accommodate above return codes
238 - clean up _pam_former_state at pam_end()
239 - ensured that former state is correctly initialized
240 - added resumption tests to pam_authenticate(), pam_chauthtok()
241 - added PAM_FAIL_DELAY item for pausing on failure
243 * improved _pam_macros.h so that macros can be used as single commands
246 * reimplemented logging to avoid bad interactions with libc. Added
247 new functions, pam_[,v]system_log() to libpam's API. A programmer
248 can check for this function's availablility by checking if
249 HAVE_PAM_SYSTEM_LOG is #defined.
251 * removed the reduce conflict from pam_conv1 creation -- I can sleep
254 * made building of static and dynamic libpam separate. This is
255 towards making it possible to build both under Solaris (for Derrick)
257 * made USE_CRACKLIB a condition in unix module (Luke Kenneth Casson Leighton)
259 * automated (quiet) config installation (Andrey)
261 0.64: Thu Feb 19 23:30:24 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
263 * miscellaneous patches for building under Solaris (Derrick J Brashear)
265 * removed STATIC support from a number of module Makefiles. Notably,
266 these modules are those that use libpwdb and caused difficulties
267 satisfying the build process. (Please submit patches to fix this...;)
269 * reomved the union for binary packet conversations from
270 (_pam_types.h). This is now completely implemented in libpam_client.
272 * Andrey's patch for working environment variable handling in
275 * made the libpam_misc conversation function a bit more flexible with
276 respect to binary conversations.
278 * added top level define (DEBUG_REL) for compiling in the form of
279 a debugging release. I use this on a Red Hat 4.2 system with little
280 chance of crashing the system as a whole. (Andrey has another
281 implementation of this -- with a spec file to match..)
283 0.63: Wed Jan 28 22:55:30 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
285 * added libpam_client "convention" library. This makes explicit the
286 use of PAM_BINARY_PROMPT. It is a first cut, so don't take it too
287 seriously yet. Comments/suggestions for improvements are very
288 welcome. Note, this library does not compile by default. It will
289 be enabled when it is judged stable. The library comes with two
290 module/agent pairs and can be used with ssh using a patch available
291 from my pre-release directory [where you got this file.]
293 * backward compatibility patch for libpam/pam_handlers.c (PAM_IGNORE
294 was working with neither "requistie" nor "required") and a DEBUG'ing
295 compile time bug with pam_dispatch.c (Savochkin Andrey Vladimirovich)
297 * minor Makefile change from (Savochkin Andrey Vladimirovich)
299 * added pam_afsauth, pam_afspass, pam_restrict, and pam_syslog hooks
302 * pam_access use of uname(2) problematic (security problem
303 highlighted by Olaf Kirch).
305 * pam_listfile went a bit crazy reading group membersips (problem
306 highlighted by Olaf Kirch and patched independently by Cristian
307 Gafton and Savochkin Andrey Vladimirovich)
309 * compatibility hooks for solaris and hpux (Derrick J Brashear)
311 * 64 bit Linux/alpha bug fixed in pam_rhosts (Andrew D. Isaacson)
313 0.62: Wed Jan 14 14:10:55 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
315 * Derrick J Brashear's patches: adds the HP stuff missed in the first
316 patch; adds SunOS support; adds support for the Solaris native ld
317 instead of requiring gnu ld.
319 * last line of .rhosts file need not contain a newline. (Bug reported by
322 0.61: Thu Jan 8 22:57:44 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
324 * complete rewrite of the "control flag" logic. Formerly, we were
325 limited to four flags: requisite, required, sufficient, optional.
326 We can now use these keywords _and_ a great deal more besides.
327 The extra logic was inspired by Vipin Samar, a preliminary patch was
328 written by Andy Berkheimer, but I "had some ideas of my own" and
329 that's what I've actually included. The basic idea is to allow the
330 admin to custom build a control flag with a series of token=value
331 pairs inside square brackets. Eg., '[default=die success=ok]' which
332 is pretty close to a synonym for 'requisite'. I'll try to document it
333 better in the sys-admin guide but I'm pretty sure it is a change for
334 the better.... If what is in the sys-admin guide is not good enough
335 for you, just take a look at the source for libpam ;^)
337 0.59: Thu Jan 8 22:27:22 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
339 * better handling of empty lines in .rhosts file. (Formerly, we asked
340 the nameserver about them!) Fix from Hugh Daschbach.
342 * _broke_some_binary_compatibility_ with previous versions to become
343 compliant with X/Open's XSSO spec. Specifically, this has been
344 by changing the prototype for pam_strerror().
346 * altered the convention for the conversation mechanism to agree
347 with that of Sun. (number of responses 'now=' number of messages
348 with help from Cristian for finding a bug.. Cristian also found a
349 nasty speradic segfault bug -- Thanks!)
351 * added NIS+ support to pam_unix_*
353 * fixed a "regular file checking" problem with the ~/.rhosts sanity
354 check. Added "privategroup" option to permit group write permission
355 on the ~/.rhosts file in the case that the group owner has the same
356 name as the authenticating user. :*) "promiscuous" and "suppress"
359 * added glibc compatibility to pam_rhosts_auth (protected __USE_MISC
360 with #ifndef since my libc already defines it!).
362 * Security fix from Savochkin Andrey Vladimirovich with suggested
363 modification from Olaf Seibert.
365 * preC contains mostly code clean-ups and a number of changes to
370 * pam_getenvlist() has a more robust definition (XSSO) than was previously
371 thought. It would seem that we no longer need pam_misc_copy_env()
372 which was there to provide the robustness that pam_getenvlist()
375 Accordingly, I have REMOVED the prototype from libpam_misc. (The
376 function, however, will remain in the library as a wrapper for
377 legacy apps, but will likely be removed from libpam_misc-1.0.) PLEASE
378 FIX YOUR APPS *BEFORE* WE GET THERE!
380 * Alexy Nogin reported garbage output from pam_env in the case of
381 a non-existent environment variable.
383 * 'fixed' pwdb compilation for pam_wheel. Not very cleanly
384 done.. Mmmm. Should really clean up the entire source tree...
386 * added prototypes for mapping functions
390 various constants have had there names changed. Numerical values have
391 been retained but be aware some source old modules/applications will
392 need to be fixed before recompilation.
396 * appended documentation to README for pam_rhosts module (Nicolai
399 * verified X/Open compatibility of header files - note, where we differ
400 it is at the level of compilation warnings and the use of 'const char *'
401 instead of 'char *'. Previously, Sun(X/open) have revised their spec
402 to be more 'const'-ervative in the light of comments from Linux-PAM
405 * Ooops! PAM_AUTHTOKEN_REQD should have been PAM_NEW_AUTHTOK_REQD.
407 changed: pam_pwdb(pam_unix_acct) (also bug fix for
408 _shadow_acct_mgmt_exp() return value), pam_stress,
409 libpam/pam_dispatch, blank, xsh.
411 * New: PAM_AUTHTOK_EXPIRED - password has expired.
413 * Ooops! PAM_CRED_ESTABLISH (etc.) should have been PAM_ESTABLISH_CRED
414 etc... (changed - this may break some people's modules - PLEASE TAKE
416 changed: pam_group, pam_mail, blank, xsh; module and appl
417 docs, pam_setcred manual page.
419 * renamed internal _pam_handle structure to be pam_handle as per XSSO.
421 * added PAM_RADIO_TYPE (for multiple choice input method). Also
422 added PAM_BINARY_{MSG,PROMPT} (for interaction out of sight of user
423 - this could be used for RSA type authentication but is currently
424 just there for experimental purposes). The _BINARY_ types are now
425 usable with hooks in the libpam_misc conversation function. Still
426 have to add PAM_RADIO_TYPE.
428 * added pam_access module (Alexei Nogin)
430 * added documentation for pam_lastlog. Also modified the module to
431 not (by default) print "welcome to your new account" when it cannot
432 find a utmp entry for the user (you can turn this on with the
435 * small correction to the pam_fail_delay manual page. Either the appl or
436 the modules header file will prototype this function.
438 * added "bigcrypt" (DEC's C2) algorithm(0) to pam_pwdb. (Andy Phillips)
440 * *BSD tweaking for various #include's etc. (pam_lastlog, pam_rhosts,
441 pam_wheel, libpam/pam_handlers). (Michael Smith)
443 * added configuration directory $SCONFIGED for module specific
446 * added two new "linked" man pages (pam.conf(8) and pam.d(8))
448 * included a reasonable default for /etc/pam.conf (which can be
449 translated to /etc/pam.d/* files with the pam_conv1 binary)
451 * fixed the names of the new configuration files in
452 conf/pam_conv1/pam_conv.y
456 * pam_lastlog fixed to handle UID in virgin part of /var/log/lastlog
457 (bug report from Ronald Wahl).
459 * grammar fix in pam_cracklib
461 * segfault avoided in pam_pwdb (getting user). Updating of passwords
462 that are directed to a "new" database are more robust now (bug noted
463 by Michael K. Johnson). Added "unix" module argument for migrating
464 passwords from another database to /etc/passwd. (documentation
465 updated). Removed "bad username []" warning for empty passwords -
466 on again if you supply the 'debug' module argument.
468 * ctrl-D respected in conversation function (libpam_misc)
470 * Removed -DPAM_FAIL_DELAY_ON from top-level Makefile. Nothing in
471 the distribution uses it. I guess this change happened a while
472 back, basically I'm trying to make the module parts of the
473 distribution "source compatible" with the RFC definition of PAM.
474 This implementation of PAM is a superset of that definition. I have
475 added the following symbols to the Linux-PAM header files:
477 PAM_DATA_SILENT (see _pam_types.h)
478 HAVE_PAM_FAIL_DELAY (see _pam_types.h)
479 PAM_DATA_REPLACE (see _pam_modules.h)
481 Any module (or application) that wants to utilize these features,
482 should check (#ifdef) for these tokens before using the associated
483 functionality. (Credit to Michael K. Johnson for pointing out my
484 earlier omission: not documenting this change :*)
486 * first stab at making modules more independent of full library
487 source. Modules converted:
493 * pam_env.c: #include <errno.h> added to ease GNU libc use. (Michael
496 * pam_unix_passwd fixes to shadow aging code (Eliot Frank)
498 * added README for pam_tally
500 0.57: Fri Apr 4 23:00:45 PST 1997 Andrew Morgan <morgan@parc.power.net>
502 * added "nodelay" argument to pam_pwdb. This can be used to turn off
503 the call to pam_fail_delay that takes effect when the user fails to
504 authenticate themself.
506 * added "suppress" argument to pam_rhosts_auth module. This will stop
507 printing the "rlogin failure message" when the user does not have a
510 * Extra fixes for FAKEROOT in Makefiles (Savochkin Andrey
513 * pam_tally added to tree courtesy of Tim Baverstock
515 * pam_rhosts_auth was failing to read NFS mounted .rhosts
516 files. (Fixed by Peter Allgeyer). Refixed and further enhanced
517 (netgroups) by Nicolai Langfeldt. [Credit also to G.Wilford for some
518 changes that were not actually included..]
520 * optional (#ifdef PAM_READ_BOTH_CONFS) support for parsing of pam.d/
521 AND pam.conf files (Elliot Lee).
523 * Added (and signed) Cristian's PGP key. (I've never met him, but I am
524 convinced the key belongs to the guy that is making the PAM rpms and
525 also producing libpwdb. Please note, I will not be signing anyone
526 else's key without a personal introduction..)
528 * fixed erroneous syslog warning in pam_listfile (Savochkin Andrey
529 Vladimirovich, whole file reformatted by Cristian)
531 * modified pam_securetty to return PAM_IGNORE in the case that the user's
532 name is not known to the system (was previously, PAM_USER_UNKNOWN). The
533 Rationale is that pam_securetty's sole purpose is to prevent superuser
534 login anywhere other than at the console. It is not its concern that the
535 user is unknown - only that they are _not_ root. Returning
536 PAM_IGNORE, however, insures that the pam_securetty can never be used to
537 "authenticate" a non-existent user. (Cristian Gafton with bug report from
540 * Modified pam_nologin to display the no-login message when the user
541 is not known. The return value in this case is still PAM_USER_UNKNOWN.
542 (Bug report from Cristian Gafton)
544 * Added NEED_LCKPWD for pam_unix/ This is used to define the locking
545 functions and should only be turned on if you don't have them in
548 * tidied up pam_lastlog and pam_pwdb: removed function that was never used.
550 * Note for package maintainers: I have added $(FAKEROOT) to the list of
551 environment variables. This should help greatly when you build PAM
552 in a subdirectory. I've gone through the tree and tried to make
553 everything compatible with it.
555 * added pam_env (courtesy of Dave Kinchlea)
557 * removed pam_passwd+ from the tree. It has not been maintained in a
558 long time and running a shell script was basically insecure. I've
559 indicated where you can pick up the source if you want it.
561 * #define HAVE_PAM_FAIL_DELAY . Applications can conditionally compile
562 with this if they want to see if the facility is available. It is
563 now always available. (corresponding compilation cleanups..)
565 * _pam_sanitize() added to pam_misc. It purges the PAM_AUTHTOK and
566 PAM_OLDAUTHTOK items. (calls replaced in pam_auth and pam_password)
568 * pam_rhosts now knows about the '+' entry. Since I think this is a
569 dangerous thing, I have required that the sysadmin supply the
570 "promiscuous" flag for it in the corresponding configuration file
573 * FULL_LINUX_PAM_SOURCE_TREE exported from the top level make file.
574 If you want to build a module, you can test for this to determine if
575 it should take its directions from above or supply default locations
576 for installation. Etc.
578 0.56: Sat Feb 15 12:21:01 PST 1997 <morgan@parc.power.net>
580 * pam_handlers.c can now interpret the pam.d/ service config tree:
581 - if /etc/pam.d/ exists /etc/pam.conf is IGNORED
582 (otherwise /etc/pam.conf is treated as before)
584 . config files are named (in lower case) by service-name
585 . config files have same syntax as /etc/pam.conf except
586 that the "service-name" field is not present. (there
587 are thus three manditory fields (and arguments are
590 module-type control-flag module-path optional-args...
594 * included conf/pam_conv1 for converting pam.conf to a pam.d/ version
595 1.0 directory tree. This program reads a pam.conf file on the
596 standard input stream and creates ./pam.d/ (in the local directory)
597 and fills it with ./pam.d/"service-name" files.
599 *> Note: It will fail if ./pam.d/ already exists.
601 PLEASE REPORT ANY BUGS WITH THIS CONVERSION PROGRAM... It currently
602 cannot retain comments from the old conf file, so take care to do this
603 by hand. Also, please email me with the fix that makes the
604 shift/reduce conflict go away...
606 * Added default module path to libpam for modules (see pam_handlers.c)
607 it makes use of Makfile defined symbol: DEFAULT_MODULE_PATH which is
608 inhereted from the defs/* variable $(SECUREDIR). Removed module
609 paths from the sample pam.conf file as they are no longer needed.
611 * pam_pwdb can now verify read protected passwords when it is not run
612 by root. This is via a helper binary that is setuid root.
614 * pam_permit now prompts for a username if it is not already determined
616 * pam_rhosts now honors "debug" and no longer hardwire's "root" as the
619 * pam_securetty now honors the "debug" flag
621 * trouble parsing extra spaces fixed in pam_time and pam_group
623 * added Michael K. Johnson's PGP key to the pgp.keys.asc list
625 * pam_end->env not being free()'d: fixed
627 * manuals relocated to section 3
629 * fixed bug in pam_mail.c, and enhanced to recognize '~' as a prefix
630 to indicate the $HOME of the user (courtesy David
631 Kinchlea). *Changed* from a "session" module to an "auth"
632 module. It cannot be used to authenticate a user, but it can be used
633 in setting credentials.
635 * fixed a stupid bug in pam_warn.. Only PAM_SERVICE was being read :*(
637 * pam_radius rewritten to exclusively make use of libpwdb. (minor fix
638 to Makefile for cleaning up - AGM)
640 * pam_limits extended to limit the total number of logins on a system
643 * libpam and libpam_misc use $(MAJOR_REL) and $(MINOR_REL) to set their
644 version numbers [defined in top level makefile]
646 * bugfix in sed command in defs/redhat.defs (AGM's fault)
648 * The following was related to a possibility of buffer overruns in
649 the syslogging code: removed fixed length array from syslogging
650 function in the following modules [capitalized the log identifier
651 so the sysadmin can "know" these are fixed on the local system],
653 pam_ftp, pam_stress, pam_rootok, pam_securetty,
654 pam_listfile, pam_shells, pam_warn, pam_lastlog
656 pam_unix_passwd (where it was definitely _not_ exploitable)
658 0.55: Sat Jan 4 14:43:02 PST 1997, Andrew Morgan <morgan@parc.power.net>
660 * added "requisite" control_flag to /etc/pam.conf syntax. [See
661 Sys. Admin. Guide for explanation] changes to pam_handlers.c
663 * completely new handling of garbled pam.conf lines. The modus
664 operandi now is to assume that any errors in the line are minor.
665 Errors of this sort should *most definitely* lead to the module
666 failing, however, just ignoring the line (as was the case
667 previously) can lead to gaping security holes(! Not foreseen by the
668 RFC). The "motivation" for the RFC's comments about ignoring garbled
669 lines is present in spirit in the new code: basically a garbled line
670 is treated like an instance of the pam_deny.so module.
671 changes to pam_handlers.c and pam_dispatch.c .
673 * patched libpam, to (a) call _pam_init_handlers from pam_start() and
674 (b) to log a text error if there are no modules defined for a given
675 service when a call to a module is requested. [pam_start() and
676 pam_dispatch() were changed].
678 * patched pam_securetty to deal with "/dev/" prefix on PAM_TTY item.
680 * reorganized the modules/Makefile to include *ALL* modules. It is now
681 the responsibility of the modules themselves to test whether they can
682 be compiled locally or not.
684 * modified pam_group to add to the getgroups() list rather than overwrite
685 it. [In the case of "HAVE_LIBPWDB" we use the pwdb_..() calls to
686 translate the group names.]. Module now pays attention to
689 * identified and removed bugs in field reading code of pam_time and
692 * Cristian's patches to pam_listfile module, corresponding change to
695 * I've discovered &ero; for sgml!
696 Added pam_time documentation to the admin guide.
698 * added manual pages: pam.8, pam_start.2(=pam_end.2),
699 pam_authenticate.2, pam_setcred.2, pam_strerror.2,
700 pam_open_session.2(=pam_close_session.2) and pam_chauthtok.2 .
704 - pam_mail (tells the user if they have any new mail
705 and sets their MAIL env variable)
706 - pam_lastlog (reports on the last time this user called
709 * new module hooks provided.
711 * added a timeout feature to the conversation function in
712 libpam_misc. Documented it in the application developers' guide.
714 * fixed bug in pam_misc_paste_env() function..
716 * slight modifications to wheel and rhosts writeup.
718 * more security issues added to module and application guides.
721 Things present but not mentioned in previous release (sorry)
723 * pam_pwdb module now resets the "last_change" entry before updating a
727 Sat Nov 30 19:30:20 PST 1996, Andrew Morgan <morgan@parc.power.net>
729 * added environment handling to libpam. involved change to _pam_types.h
730 also added supplementary functions to libpam_misc
732 * added pam_radius - Cristian
734 * slight speed up for pam_rhosts
736 * significantly enhanced sys-admin documentation (8 p -> 41 p in
737 PostScript). Added to other documentation too. Mostly the changes
738 in the other docs concern the new PAM-environment support, there is
739 also some coverage of libpam_misc in the App. Developers' guide.
741 * Cristian's patches to pam_limits and pam_pwdb. Fixing bugs. (MORE added)
743 * adopted Cristian's _pam_macros.h file to help with common macros and
744 debugging stuff, gone through tree tidying up debugging lines to use
747 - for consistency replaced DROP() with _pam_drop()
749 * commented memory debugging in top level makefile
751 * added the following modules
753 - pam_warn log information to syslog(3) about service application
754 - pam_ftp if user is 'ftp' then set PAM_RUSER/PAM_RHOST with password
755 (comment about nologin added to last release's notes)
757 * modified the pam_listfile module. It now declares a meaningful static
760 Sun Nov 10 13:26:39 PST 1996, Andrew Morgan <morgan@parc.power.net>
762 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
764 -------> http://parc.power.net/morgan/Linux-PAM/index.html <-------
766 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
768 A brief summary of what has changed:
770 * many modules have been modified to accomodate fixing the pam_get_user()
771 change. Please take note if you have a module in this distribution.
773 * pam_unix is now the pam_unix that Red Hat has been using and which
774 should be fairly well debugged.
776 - I've added some #ifdef's to make it compile for me, and also
777 updated it with respect to the libpam-0.53, so have a look at the
778 .../modules/pam_unix/Makefile to enable cracklib and shadow features
780 ** BECAUSE OF THIS, I cannot guarantee this code works as it **
781 ** did for Red Hat. Please test and report any problems. **
783 * the pam_unix of .52 (renamed to pam_pwdb) has been enhanced and made
784 more flexible with by implementing it with respect to the new
785 "Password Database Library" see
787 http://parc.power.net/morgan/libpwdb/index.html
789 modules included in this release that require this library to
790 function are the following:
792 - pam_pwdb (ne pam_unix-0.52 + some enhancements)
797 * Added some optional code for memory debugging. In order to support
798 this you have to enable MEMORY_DEBUG in the top level makefile and
799 also #define MEMORY_DEBUG in your applications when they are compiled.
800 The extra code resides in libpam (compiled if MEMORY_DEBUG is defined)
801 and the macros for malloc etc. are to be found at the end of
804 * used above code to locate two memory leaks in pam_unix module and two
805 in libpam (pam_handlers.h)
807 * pam_get_user() now sets the PAM_USER item. After reading the Sun
808 manual page again, it was clear that it should do this. Various
809 modules have been assuming this and now I have modified most of them
810 to account for this change. Additionally, pam_get_user() is now
811 located in the module include file; modules are supposed to be the
812 ones that use it(!) [Note, this is explicitly contrary to the Sun
813 manual page, but in the spirit of the Linux distribution to date.]
815 * replaced -D"LINUX" with -D"LINUX_PAM" as this is more explicit and less
816 likely to be confused with -D"linux".
817 Also, modified the libpam #include files to behave more like the Sun
818 ones #ifndef LINUX_PAM.
820 * removed <bf/ .. / from documentation titles. This was not giving
821 politically correct html..
823 ----- My vvvvvvvvvvvvvvvvvvv was a long time ago ;*] -----
825 Wed Sep 4 23:57:19 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>
827 0. Before I begin, Linux-PAM has a new primary distribution site (kindly
828 donated by Power Net Inc., Los Angeles)
830 **PLEASE AMMEND YOUR PERSONAL LINKS**
832 -------> http://www.power.net/morgan/Linux-PAM <-------
834 **PLEASE AMMEND YOUR PERSONAL LINKS**
836 1. I'm hoping to make the next release a bug-fix release... So please find
839 2. here are the changes for .52:
841 * minor changes to module documentation [Incidently, it is now
842 available on-line from the WWW page above]. More changes to follow in
843 the next two releases. PLEASE EMAIL me or the list if there is
844 anything that isn't clear!
846 * completely changed the unix module. Now a single module for all four
847 management groups (this meant that I could define all functions as
848 static that were not part of the pam_sm_... scheme. AGM)
850 - Shadow support added
851 PASSWD - Elliot's account management included, and enhanced by Cristian Gafton.
852 - MD5 password support added by Cristian Gafton.
853 - maxtries for authentication now enforced.
854 - Password changing function in pam_unix now works!
855 Although obviously, I'm not going to *guarantee* it ;^) .
856 - stole Marek's locking code from the Red Hat unix module.
857 [ If you like you can #ifdef it in or out ... ]
859 You can configure the module more from its Makefile in
860 0.52/modules/pam_unix/
862 If you are nervous that it will destroy your /etc/passwd or shadow
863 files then EDIT the 0.52/modules/pam_unix/pam_unix_pass.-c file.
864 Here is the warning comment from this file...
866 -------------8<-----------------
869 * Uncomment the following #define if you are paranoid, and do not
870 * want to risk losing your /etc/passwd or shadow files.
871 * It works for me (AGM) but there are no guarantees.
875 /* #define TMP__FILE */
876 ------------->8-----------------
878 *** If anyone has any trouble, please *say*. Your problem will be
879 fixed in the next release. Also please feel free to scour the
880 code for race conditions etc...
882 [* The above change requires that you purge your /usr/lib/security
883 directory of the old pam_unix_XXX.so modules: they will NOT be deleted
884 with a 'make remove'.]
886 * the prototype for the cleanup function supplied to pam_set_data used
887 to return "int". According to Sun it should be "void". CHANGED.
889 * added some definitions for the 'error_status' mask values that are
890 passed to the cleanup function associated with each
891 module-data-item. These numbers were needed to keep up with changing
892 a data item (see for example the code in pam_unix/support.-c that
893 manages the maximum number of retries so far). Will see what Sun says
894 (current indications are positive); this may be undone before 1.0 is
895 released. Here are the definitions (from pam_modules.h).
897 #define PAM_DATA_SILENT 0x40000000 /* used to suppress messages... */
898 #define PAM_DATA_REPLACE 0x20000000 /* used when replacing a data item */
900 * Changed the .../conf/pam.conf file. It now points to the new
901 pam_unix module for 'su' and 'passwd' [can get these as SimpleApps --
902 I use them for testing. A more extensive selection of applications is
903 available from Red Hat...]
905 * corrected a bug in pam_dispatch. Basically, the problem was that if
906 all the modules were "sufficient" then the return value for this
907 function was never set. The net effect was that _pam_dispatch_aux
908 returned success when all the sufficient modules failed. :^( I think
909 this is the correct fix to a problem that the Red Hat folks had
912 sopwith* Removed advisory locking from libpam (thanks for the POSIX patch
913 goes to Josh Wilmes's, my apologies for not using it in the
914 end.). Advisory locking did not seem sufficiently secure for libpam.
915 Thanks to Werner Almesberger for identifying the corresponding "denial
916 of service attack". :*(
918 * related to fix, have introduced a lock file /var/lock/subsys/PAM
919 that can be used to indicate the system should pay attention to
920 advisory locking on /etc/pam.conf file. To implement this you need to
921 define PAM_LOCKING though. (see .52/libpam)
923 * modified pam_fail_delay() function. Couldn't find the "not working"
924 problem indicated by Michael, but modified it to do pseudo-random
925 delays based on the values indicated by pam_fail_delay() -- the
926 function "that may eventually go away"... Although Sun is warming to
929 * new modules include:
931 pam_shells - authentication for users with a shell listed in
932 /etc/shells. Erik Troan <ewt@redhat.com>
934 pam_listfile - authentication based on the contents of files.
935 Set to be more general than the above in the
936 future. UNTESTED. Elliot Lee <@redhat.com>
937 [Note, this module compiles with a non-trivial
940 Thu Aug 8 22:32:15 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
942 * modified makefiles to take more of their installation instructions
943 from the top level makefile. Desired for integration into the Debian
944 distribution, and generally a good idea.
946 * fixed memory arithmetic in pam_handlers
947 -- still need to track down why failure to load modules can lead to
948 authentication succeding..
950 * added tags for new modules (smartcards from Alex -- just a promise
951 at this stage) and a new module from Elliot Lee; pam_securetty
953 * I have not had time to smooth out the wrinkles with it, but Alex's
954 pam_unix modifications are provided in pam_unix-alex (in the modules
955 directory) they will not be compiled by 'make all' and I can't even
956 say if they do compile... I will try to look at them for .52 but, in
957 the mean time please feel free to study/fix/discuss what is there.
959 * pam_rhosts module. Removed code for manually setting the ruser
960 etc. This was not very secure.
962 * [remade .ps docs to be in letter format -- my printer complains
965 Sunday July, 7 12:45:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
967 * No longer accompanying the Linux-PAM release with apps installed.
968 [Will provide what was here in a separate package.. (soon)
969 lib Also see http://www.redhat.com/pam for some more (in .rpm form...)]
971 * renamed libmisc to libpam_misc. It is currently configured to only compile
972 the static library. For some strange reason (perhaps someone can
973 investigate) my Linux 2.0.0 kernel with RedHat 3.0.3 system
974 segfaults when I compile it to be a dynamic library. The segfault
975 seems to be inside the call to the ** dl_XXX ** function...!?
977 There is a simple flag in the libpam_misc/Makefile to turn on dynamic
980 * Added a little unofficial code for delay support in libpam (will probably
981 disappear later..) There is some documentation for it in the pam_modules
982 doc now. That will obviously go too.
984 * rewritten pam_time to use *logic* to specify the stringing together of
985 users/times/terminals etc.. (what was there before was superficially
986 logical but basically un-predictable!)
988 * added pam_group. Its syntax is almost identical to pam_time but it
989 has another field added; a list of groups to make the user a member
990 of if they pass the previous tests. It seems to not co-exist too well
991 with the groups in the /etc/group but I hope to have that fixed by
994 * minor re-formatting of pam_modules documentation
996 * removed ...// since it wasn't being used and didn't look like it
999 GCCSunday 23 22:35:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1001 * The major change is the addition of a new module: pam_time for
1002 restricting access on terminals at given times for indicated users
1003 it comes with its own configuration file /etc/security/time.conf
1004 and the sample file simply restricts 'you' from satisfying the blank
1005 application if they try to use blank from any tty*
1007 * Small changes include
1008 - altered pam.conf to demonstrate above new module (try typing username: you)
1009 - very minor changes to the docs (pam_appl and pam_modules)
1011 Saturday June 2 01:40:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1013 *** PLEASE READ THE README, it has changed ***
1015 * NOTE, 'su' exhibits a "system error", when static linking is
1016 used. This is because the pam_unix_... module currently only has
1017 partial static linking support. This is likely to change on Monday
1018 June 3, when Alex makes his latest version availible. I will include
1019 the updated module in next release.
1023 * modified the way in which libpam/pam_modules.h defines prototypes for
1024 the pam_sm_ functions. Now the module must declare which functions it
1025 is to provide *before* the #include <security/pam_modules.h> line.
1026 (for contrasting examples, see the pam_deny and pam_rootok modules)
1027 This removed the ugly hack of defining functions that are never called
1028 to overcome warnings... This seems much tidier.
1029 insterted* updated the TODO list. (changed mailing list address)
1030 * updated README in .../modules to reflect modifications to static
1031 compliation protocol
1032 * modified the pam_modules documentation to describe this.
1033 * corrected last argument of pam_get_item( ... ) in
1034 pam_appl/modules.sgml, to "const void **".
1035 * altered GNU GPL's in the documentation, and various other parts of
1036 the distribution. *Please check* that any code you are responsible for
1038 * Added ./Copyright (please check that it is acceptable)
1039 * updated ./README to make current and indicate the new mailing list
1041 * have completely rewritten pam_filter. It now runs modular filter
1042 executables (stored in /usr/sbin/pam_filter/) This should make it
1043 trivial for others to write their own filters.. If you want yours
1044 included in the distribution please email the list/me.
1045 * changes to libpam; there was a silly bug with multiple arguments on a
1046 pam.conf line that was broken with a '\<LF>'.
1047 * 'su' rearranged code (to make better use of PAM)
1048 *Also* now uses POSIX signals--this should help the Alpha port.
1049 * 'passwd' now uses getlogin() to determine who's passwords to change.
1051 Sunday May 26 9:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1053 * fixed module makefiles to create needed dynamic/static subdirectories
1055 Saturday May 25 20:30:27.8 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1057 * LOTS has changed regarding how the modules/libpam are built.
1058 * Michael's mostly complete changes for static support--see below
1059 (Andrew got a little carried away and automated the static linking
1060 of modules---bugs are likely mine ;( )
1061 * Thanks mostly to Michael, libpam now compiles without a single warning :^]
1062 * made static modules/library optional.
1063 CFLAGS* added 'make sterile' to top level makefile. This does extraclean and remove
1064 * added Michael and Joseph to documentation credits (and a subsection for
1065 future documentation of static module support in pam_modules.sgml)
1066 * libpam; many changes to makefiles and also automated the inclusion of
1067 static module objects in pam_static.c
1068 * modified modules for automated static/dynamic support. Added static &
1069 dynamic subdirectories, as instructed by Michael
1070 * removed an annoying syslog message from pam_filter: "parent exited.."
1071 * updated todo list (anyone know anything about svgalib/X? we probably should
1072 have some support for these...)
1074 Friday May 24 16:30:15 EDT 1996 (Michael K. Johnson <johnsonm@redhat.com>)
1076 * Added first (incomplete) cut at static support.
1078 . changes in libpam, including a new file, pam_static.c
1079 . changes to modules including exporting struct of function pointers
1080 . static and dynamic linking can be combined
1081 . right now, the only working combinations are just dynamic
1082 linking and dynamic libpam.so with static modules linked
1083 into libpam.so. That's on the list of things to fix...
1084 . modules are built differently depending on whether they
1085 are static or dynamic. Therefore, there are two directories
1086 under each module directory, one for static, and one for
1088 * Fixed random brokenness in the Makefiles. [ foo -nt bar ] is
1089 rather redundant in a makefile, for instance. Also, passing
1090 on the command line is broken because it cannot be
1091 overridden in any way (even adding important parts) in lower-level
1093 * Unfortunately, fixing some of the brokenness meant that I used
1094 GNU-specific stuff. However, I *think* that there was GNU-specific
1095 stuff already. And I think that we should just use the GNU
1096 extensions, because any platform that GNU make doesn't port to
1097 easily will be hard to port to anyway. It also won't be likely
1098 passwd to handle autoconf, which was Ted's suggestion for getting
1099 around limitations in standard make...
1100 For now, I suggest that we just use some simple GNU-specific
1103 Monday May 20 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1105 * added some text to pam_modules.sgml
1106 * corrected Marek's name in all documentation
1107 * made pam_stress conform to chauthtok conventions -- ie can now request
1108 old password before proceeding.
1109 * included Alex's latest unix module
1110 * included Al's + password strength checking module
1111 * included pam_rootok module
1112 * fixed too many bugs in libpam.. all subtly related to the argument lists
1113 or use of syslog. Added more debugging lines here too.
1114 * fixed the pam.conf file
1115 * deleted pam_test module. It is pretty old and basically superceeded
1118 Friday May 9 1:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1120 * updated documentaion, added Al Longyear to credits and corrected the
1121 spelling of Jeff's name(!). Most changes to pam.sgml (even added a figure!)
1122 * new module pam_rhosts_auth (from Al Longyear)
1123 * new apps rlogind and ftpd (a patch) from Al.
1124 * modified 'passwd' to not call pam_authenticate (note, none of the
1125 modules respect this convention yet!)
1126 * fixed bug in libpam that caused trouble if the last line of a
1127 pam.conf file ends with a module name and no newline character
1128 * also made more compatable with documentation, in that bad lines in
1129 pam.conf are now ignored rather than causing libpam to return an
1131 * libpam now overwrites the AUTHTOKs when returning from
1132 pam_authenticate and pam_chauthtok calls (as per Sun/RFC too)
1133 * libpam is now installed as libpam.so.XXX in a way that ldconfig can
1137 Wednesday May 1 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1139 * removed .../test directory, use .../examples from now on.
1140 * added .../apps directory for fully functional applications
1141 - the apps directory contains directories that actually contain the apps.
1142 the idea is to make application compilation conditional on the presence
1143 of the directory. Note, there are entries in the Makefile for
1144 'login' and 'ftpd' that are ready for installation... Email me if
1145 you want to reserve a directory name for an application you are
1147 * similar changes to .../modules makefile [entries for pam_skey and
1148 pam_kerberos created---awaiting the directories.] Email me if you
1149 want to register another module...
1150 * minor changes to docs.. Not really worth reprinting them quite yet!
1152 * added misc_conv to libmisc. it is a generic conversation function
1153 for text based applications. [would be nice to see someone create
1154 an Xlib and/or svgalib version]
1155 * fixed ctrl-z/c bug with pam_filter module [try xsh with the default
1157 * added 'required' argument to 'pam_stress' module.
1158 * added a TODO list... other suggestions to the list please.
1160 Saturday April 7 00:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1162 * Alex and Marek please note I have altered _pam_auth_unix a little, to
1163 make it get the passwords with the "proper method" (and also fixed it
1164 to not have as many compiler warnings)
1165 * updated the conf/pam.conf file
1166 * added new example application examples/xsh.c (like blank but invokes
1168 * Marc's patches for examples/blank.c (and AGM's too)
1169 * fixed stacking of modules in libpam/pam_handlers.c
1170 * fixed RESETing in libpam/pam_item.c
1171 * added new module modules/pam_filter/ to demonstrate the possibility
1172 of inserting an arbitrary filter between the terminal and the
1173 application that could do customized logging etc... (see use of
1174 bin/xsh as defined in conf/pam.conf)
1177 Saturday March 16 19:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1179 These notes are for 0.3 I don't think I've left anything important
1180 out, but I will use emacs 'C-x v a' next time! (Thanks Jeff)
1182 * not much has changed with the functionality of the Linux-PAM lib
1184 - pam_password calls module twice with different arguments
1185 - added const to some of the function arguments
1186 - added PAM_MAX_MES_ to <security/_pam_types.h>
1187 - was a lot over zealous about purging old passwords...
1188 I have removed much of this from source to make it
1189 more compatible with SUN.
1190 - moved some PAM_... tokens to pam_modules.h from _pam_types.h
1191 (no-one should notice)
1193 * added three modules: pam_permit pam_deny pam_stress
1194 no prizes for guessing what the first two do. The third is
1195 a reasonably complete (functional) module. Is intended for testing
1198 * fixed a few pieces of examples/blank.c so that it works (with
1201 * ammended the documentation. Looking better, but suggestions/comments
1204 Sunday March 10 10:50:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1206 These notes are for Linux-PAM release 0.21. They cover what's changed
1207 since I relased 0.2.
1210 * substantially changed ./README
1211 * fixed bug reading \\\n in pam.conf file
1212 * small changes to documentation
1213 * added `blank' application to ./examples (could be viewed as
1214 a `Linux-PAM aware' application template.)
1215 * oops. now including pam_passwd.o and pam_session.o in pamlib.so
1216 * compute md5 checksums for all the source when making a release
1217 - added `make check' and `make RCScheck' to compute md5 checksums
1218 * create a second tar file with all the RCS files in.
1219 * removed the .html and .txt docs, supplying sgml sources instead.
1220 - see README for info on where to get .ps files
1222 Thursday March 6 0:44:?? PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1224 These notes are for Linux-PAM release 0.2. They cover what's changed
1225 since Marc Ewing relased 0.1.
1227 **** Please note. All of the directories in this release have been modified
1228 **** slightly to conform to the new pamlib. A couple of new directories have
1229 **** been added. As well as some documentation. If some of your code
1230 **** was in the previous release. Feel free to update it, but please
1231 **** try to conform to the new headers and Makefiles.
1233 * Andrew Morgan (morgan@physics.ucla.edu) is making this release
1234 availible, Marc has been busy...!
1236 * Marc's pam-0.1/lib has been (quietly) enhanced and integrated into
1237 Alex Yurie's collected tree of library and module code
1238 (linux-pam.prop.1.tar.gz). Most of the changes are to do with error
1239 checking. Some more robustness in the reading of the pam.conf file
1240 and the addition of the pam_get_user() function.
1242 * The pam_*.h files have been reorganized to logically enforce the
1243 separation of modules from applications. [Don't panic! Apart from
1244 changing references of the form
1246 #include "pam_appl.h"
1250 #include <security/pam_appl.h>
1252 The reorganization should be backwardly compatable (ie. a module
1253 written for SUN will be as compatable as it was before with the
1254 previous version ;)~ ]
1256 (All of the source in this tree now conforms to this scheme...)
1258 The new reorganization means that modules can be compiled with a
1259 single header, <security/pam_modules.h>, and applications with
1260 <security/pam_appl.h>.
1262 * I have tried to remove all the compiler warnings from the updated
1263 "pamlib/*.c" files. On my system, (with a slightly modified <dlfcn.h>
1264 email me if it interests you..) there are only two warnings that
1265 remain: they are that ansi does not permit void --> fn ptr
1266 assignment. K&Rv2 doesn't mention this....? As a matter of principle,
1267 if anyone knows how to get rid of that warning... please
1268 tell. Thanks! "-pedantic"
1270 * you can "make all" as a plain user, but
1272 * to "make install" you must be root. The include files are placed in
1273 /usr/include/security. The libpam.so library is installed in /usr/lib
1274 and the modules in /usr/lib/security. The two test binaries
1275 are installed in the Linux-PAM-0.2/bin directory and a chance is given to
1276 replace your /etc/pam.conf file with the one in Linux-PAM-0.2/conf.
1278 * I have included some documentation (pretty preliminary at the
1279 moment) which I have been working on in .../doc .
1281 I have had a little trouble with the modules, but atleast there are no
1282 segfaults! Please try it out and discuss your results... I actually
1283 hope it all works for you. But, Email any bugs/suggestions to the
1284 Linux-PAM list: linux-pam@mit.edu .....
1289 (morgan@physics.ucla.edu)
1292 Sat Feb 17 17:30:24 EST 1996 (Alexander O. Yuriev alex@bach.cis.temple.edu)
1294 * conf directory created with example of pam_conf
1295 * stable code from pam_unix is added to modules/pam_unix
1296 * test/test.c now requests username and password and attempts
1297 to perform authentication