4 -----------------------------
8 - autoconf the modules?
9 - sanitize use of md5 throughout distribution.. Make a static
10 library for helping to develop modules that contains it and other
11 stuff. Also add sha-1 and ripemd-160 digest algorithms.
12 - once above is done. remove hacks from the secret@here module etc..
13 - remove prototype for gethostname in pam_access.c (Derrick)
14 - document PAM_INCOMPLETE changes
15 - verify that the PAM_INCOMPLETE interface is sensible. Can we
16 catch errors? should we permit item changing etc., between
17 pam_authenticate re-invocations?
18 - verify that the PAM_INCOMPLETE interface works (auth seems ok..)
19 - add PAM_INCOMPLETE support to modules (partially added to pam_pwdb)
21 - do we still need to remove openlog/closelog from modules..?
22 - auth and acct support in pam_cracklib, "yes, I know the password
23 you just typed was valid, I just don't think it was very strong..."
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 0.73: please submit patches for this section with actual code/doc
38 * comment fix describing fail_delay callback in _pam_types.h (Bug
40 * "likeauth" fix for pam_unix and pam_pwdb which (Bug 113596 - agmorgan)
41 * fix for pam_unix (support.c) to avoid segfault with NULL password
43 * fix to pam_unix_passwd: try repeatedly to get a lock on the password
44 file, instead of failing immediately (Bug 108845 - fix vorlon)
45 * fix to pam_shells: logged information was not formatted correctly
46 (extra comma) (Bug 111491 - fix vorlon)
47 * fix for C++ application support (Bug 111645 - fix agmorgan)
48 * fix for typo in pam_client.h (Bug 111648 - fix agmorgan)
49 * removal of -lpam from pam_mkhomedir Makefile (Bug 116380 - fix agmorgan)
53 - some autoconf support and other outstanding changes from Jan..
54 - some outstanding changes from Ben
55 - add in the pam_cap and pam_netid modules
57 0.72: Mon Dec 13 22:41:11 PST 1999
59 * patches from Debian (Ben Collins): pam_ftp supports event driven
60 conversations now; pwdb_chkpwd cleanup; pam_warn static compile fix;
61 user_db compiler warnings removed; debian defs file; pam_mail can
62 now be used as a session module
63 * ndbm compilation option for user_db module (fix explained by Richard Khoo)
64 * pam_cracklib bug fix
65 * packaging fixes & build from scratch stuff (Konst Bulatnikov & Frodo
67 * -ldl appended to the libpam.so compilation make rule. (Charles Seeger)
68 * Red Hat security patch for pam_pwdb forwarded by Debian! (Ben
69 Collins. Fix provided by Andrey as it caught the problem earlier in the
71 * heuristic to prevent leaking filedescriptors to an agent. [This needs
72 to be better supported perhaps by an additional libpamc API function?]
73 * pam_userdb segfault fix from (Ben Collins)
74 * PAM draft spec extras added at request of 'sen_ml'
76 0.71: Sun Nov 7 20:21:19 PST 1999
78 * added -lc to linker pass for pam_nologin module (glibc is weird).
79 * various header changes to lower the number of warnings on glibc
81 * merged a bunch of Debian fixes/patches/documentation (Ben Collins)
82 things touched: libpam (minor); doc/modules/pam_unix.sgml; pam_env
83 (plus docs); pam_mkhomedir (new module for new home directories on
84 the fly...); pam_motd (new module); pam_limits (adjust to match
85 docs); pam_issue (new module + doc) [Some of these were also
86 submitted by Thorsten Kukuk]
87 * small hack to lower the number of warnings that pam_client.h was
89 * debian and SuSE apparently can use the pam_ftp module, so
90 removed the obsolete comment about this from the docs. (Thorsten
93 0.70: Fri Oct 8 22:05:30 PDT 1999
95 * bug fix for parsing of value=action tokens in libpam/pam_misc.c was
96 segfaulting (Jan Rekorajski and independently Matthew Melvin)
97 * numerous fixes from Thorsten Kukuk (icluding much needed fixes for
98 bitrot in modules and some documentation) that got included in SuSE 6.2.
99 * reentrancy issues in pam_unix and pam_cracklib resolved (Jan Rekorajski)
100 * added hosts_equiv_rootok module option to pam_rhosts module (Tim Berger)
101 * added comment about 'expose_account' module argument to admin and
102 module writers' docs (request from Michael K Johnson).
103 * myriad of bug fixes for libpamc - library now built by default and
104 works with the biomouse fingerprint scanner agent/module
105 (distributed separately).
107 0.69: Sun Aug 1 20:25:37 PDT 1999
109 * c++ header #ifdef'ing for pam_appl.h (Tuomo Pyhala)
110 * added pam_userdb module (Cristian Gafton)
111 * minor documentation changes
112 * added in revised pam_client library (libpamc). Not installed by
113 default yet, since the example agent/module combo is not very secure.
114 * glibc fixes (Thorsten Kukuk, Adam J. Richter)
116 0.68: Sun Jul 4 23:04:13 PDT 1999
118 * completely new pam_unix module from Jan Rekorajski and Stephen Langasek
119 * Jan Rekorajski pam_mail - support for Maildir format mailboxes
120 * Jan Rekorajski pam_cracklib - support for old password comparison
121 * Jan Rekorajski bug fix for pam_pwdb setcred reusing auth retval
122 * Andrey's pam_tally patch (lstat -> fstat)
123 * Robert Milkowski's additional pam_tally patches to **change format of
124 /var/log/faillog** to one from shadow-utils, add new option "per_user"
125 for pam_tally module, failure time logging, support for fail_line
126 field, and support for fail_locktime field with new option
128 * pam_tally: clean up the tally application too.
129 * Marcin Korzonek added process priority settings to pam_limits (bonus
130 points for adding to documentation!)
131 * Andrey's pam_pwdb patch (cleanup + md5 endian fubar fix)
132 * more binary prompt preparations (make misc conv more compatible with spec)
133 * modified callback hook for fail delay to be more useful with event
134 driven applications (changed function prototype - suspect no one
135 will notice). Documented this in app developer guide.
136 * documentation for pam_access from Tim Berger
137 * syntax fixes for the documentation - a long time since I've built it :*(
138 added some more names to the CREDITS file.
140 0.67: Sat Jun 19 14:01:24 PDT 1999
142 * [dropped libpam_client - libpamc will be in the next release and
143 conforms to the developing spec in doc/specs/draft-morgan-pam.raw.
144 Sorry if you are keeping a PAM tree in CVS. CVS is a pain for
145 directories, but this directory was actually not referenced by
146 anything so the disruption should be light.]
147 * updates to pam_tally from Tim
148 * multiple updates from Stephen Langasek to pam_unix
149 * pam_filter had some trouble compiling (bug report from Sridhar)
150 * pam_wheel now attempts to identify the wheel group for the local
151 system instead of blindly assuming it is gid=0. In the case that
152 there is no "wheel" group, we default to assuming gid=0 is what was
153 meant - former behavior. (courtesy of Sridhar)
154 * NIS+ changes to pam_unix module from Dmitry O Panov
155 * hopefully, a fix for redefinition of LOG_AUTHPRIV (bug report Luke
156 Kenneth Casson Leighton)
157 * fix for minor typo in pam_wheel documentation (Jacek Kopecky)
158 * slightly more explanation of the [x=y] pam.conf syntax in the sys
161 0.66: Mon Dec 28 20:22:23 PST 1998 <morgan@linux.kernel.org>
163 * Started using cvs to keep track of changes to Linux-PAM. This will
164 likely break some of the automated building stuff (RPMs etc..).
165 * security bug fix to pam_unix and pam_tally from Andrey.
166 * modules make file is now more automatic. It should be possible to
167 unpack an external module in the modules directory and have it automatically
168 added to the build process. Also added a modules/download-all script
169 that will make such downloading easier. I'm happy to receive patches to
170 this file, informing the distribution of places from which to enrich itself.
171 * removed pam_system_log stuff. Thought about it long and hard: a
172 bad idea. If libc cannot guarantee a thread safe syslog, it needs
173 to be fixed and compatibility with other PAM libraries was
174 unnecessarily strained.
175 * SAG documentation changes: Seth Chaiklin
176 * rhosts: problems with NIS lookup failures with the root-uid check.
177 As a work-around, I've partially eliminated the need for the lookup
178 by supplying two new arguments: no_uid_check, superuser=<username>.
179 As a general rule this is more pluggable, since this module might be
180 used as an authentication scheme for a network service that does not
181 need root privilege...
182 * authenticate retval -> setcred for pam_pwdb (likeauth arg).
183 * pam_pwdb event driven support
184 * non openlog pam_listfile logging
185 * BUGFIX: close filedescriptor in pam_group and pam_time (Emmanuel Galanos)
186 * Chris Adams' mailhash change for pam_mail module
187 * fixed malloc failure check in pam_handlers.c (follow up to comment
189 * update to _pam_compat.h (Brad M. Garcia)
190 * support static modules in libpam again (Brad M. Garcia)
191 * libpam/pam_misc.c for egcs to grok the code (Brad M. Garcia)
192 * added a solaris-2.5.1 defs file (revived by Derrick J Brashear)
193 * pam_listfile logs failed attempts
194 * added a comment (Michael K Johnson pointed it out) about sgml2latex
195 having a new syntax. I'll make it the change real when I upgrade...
196 * a little more text to the RFC, spelling fix from William J Buffam.
197 * minor changes to pam_securetty to accommodate event driven support.
199 0.65: Sun Apr 5 22:29:09 PDT 1998 <morgan@linux.kernel.org>
201 * added event driven programming extensions to libpam
202 - added PAM_INCOMPLETE handling to libpam/pam_dispatch.c
203 - added PAM_CONV_AGAIN which is a new conversation response that
204 should be mapped to PAM_INCOMPLETE by the module.
205 - ensured that the pam_get_user() function can resume
206 - changes to pam_strerror to accommodate above return codes
207 - clean up _pam_former_state at pam_end()
208 - ensured that former state is correctly initialized
209 - added resumption tests to pam_authenticate(), pam_chauthtok()
210 - added PAM_FAIL_DELAY item for pausing on failure
212 * improved _pam_macros.h so that macros can be used as single commands
215 * reimplemented logging to avoid bad interactions with libc. Added
216 new functions, pam_[,v]system_log() to libpam's API. A programmer
217 can check for this function's availablility by checking if
218 HAVE_PAM_SYSTEM_LOG is #defined.
220 * removed the reduce conflict from pam_conv1 creation -- I can sleep
223 * made building of static and dynamic libpam separate. This is
224 towards making it possible to build both under Solaris (for Derrick)
226 * made USE_CRACKLIB a condition in unix module (Luke Kenneth Casson Leighton)
228 * automated (quiet) config installation (Andrey)
230 0.64: Thu Feb 19 23:30:24 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
232 * miscellaneous patches for building under Solaris (Derrick J Brashear)
234 * removed STATIC support from a number of module Makefiles. Notably,
235 these modules are those that use libpwdb and caused difficulties
236 satisfying the build process. (Please submit patches to fix this...;)
238 * reomved the union for binary packet conversations from
239 (_pam_types.h). This is now completely implemented in libpam_client.
241 * Andrey's patch for working environment variable handling in
244 * made the libpam_misc conversation function a bit more flexible with
245 respect to binary conversations.
247 * added top level define (DEBUG_REL) for compiling in the form of
248 a debugging release. I use this on a Red Hat 4.2 system with little
249 chance of crashing the system as a whole. (Andrey has another
250 implementation of this -- with a spec file to match..)
252 0.63: Wed Jan 28 22:55:30 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
254 * added libpam_client "convention" library. This makes explicit the
255 use of PAM_BINARY_PROMPT. It is a first cut, so don't take it too
256 seriously yet. Comments/suggestions for improvements are very
257 welcome. Note, this library does not compile by default. It will
258 be enabled when it is judged stable. The library comes with two
259 module/agent pairs and can be used with ssh using a patch available
260 from my pre-release directory [where you got this file.]
262 * backward compatibility patch for libpam/pam_handlers.c (PAM_IGNORE
263 was working with neither "requistie" nor "required") and a DEBUG'ing
264 compile time bug with pam_dispatch.c (Savochkin Andrey Vladimirovich)
266 * minor Makefile change from (Savochkin Andrey Vladimirovich)
268 * added pam_afsauth, pam_afspass, pam_restrict, and pam_syslog hooks
271 * pam_access use of uname(2) problematic (security problem
272 highlighted by Olaf Kirch).
274 * pam_listfile went a bit crazy reading group membersips (problem
275 highlighted by Olaf Kirch and patched independently by Cristian
276 Gafton and Savochkin Andrey Vladimirovich)
278 * compatibility hooks for solaris and hpux (Derrick J Brashear)
280 * 64 bit Linux/alpha bug fixed in pam_rhosts (Andrew D. Isaacson)
282 0.62: Wed Jan 14 14:10:55 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
284 * Derrick J Brashear's patches: adds the HP stuff missed in the first
285 patch; adds SunOS support; adds support for the Solaris native ld
286 instead of requiring gnu ld.
288 * last line of .rhosts file need not contain a newline. (Bug reported by
291 0.61: Thu Jan 8 22:57:44 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
293 * complete rewrite of the "control flag" logic. Formerly, we were
294 limited to four flags: requisite, required, sufficient, optional.
295 We can now use these keywords _and_ a great deal more besides.
296 The extra logic was inspired by Vipin Samar, a preliminary patch was
297 written by Andy Berkheimer, but I "had some ideas of my own" and
298 that's what I've actually included. The basic idea is to allow the
299 admin to custom build a control flag with a series of token=value
300 pairs inside square brackets. Eg., '[default=die success=ok]' which
301 is pretty close to a synonym for 'requisite'. I'll try to document it
302 better in the sys-admin guide but I'm pretty sure it is a change for
303 the better.... If what is in the sys-admin guide is not good enough
304 for you, just take a look at the source for libpam ;^)
306 0.59: Thu Jan 8 22:27:22 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
308 * better handling of empty lines in .rhosts file. (Formerly, we asked
309 the nameserver about them!) Fix from Hugh Daschbach.
311 * _broke_some_binary_compatibility_ with previous versions to become
312 compliant with X/Open's XSSO spec. Specifically, this has been
313 by changing the prototype for pam_strerror().
315 * altered the convention for the conversation mechanism to agree
316 with that of Sun. (number of responses 'now=' number of messages
317 with help from Cristian for finding a bug.. Cristian also found a
318 nasty speradic segfault bug -- Thanks!)
320 * added NIS+ support to pam_unix_*
322 * fixed a "regular file checking" problem with the ~/.rhosts sanity
323 check. Added "privategroup" option to permit group write permission
324 on the ~/.rhosts file in the case that the group owner has the same
325 name as the authenticating user. :*) "promiscuous" and "suppress"
328 * added glibc compatibility to pam_rhosts_auth (protected __USE_MISC
329 with #ifndef since my libc already defines it!).
331 * Security fix from Savochkin Andrey Vladimirovich with suggested
332 modification from Olaf Seibert.
334 * preC contains mostly code clean-ups and a number of changes to
339 * pam_getenvlist() has a more robust definition (XSSO) than was previously
340 thought. It would seem that we no longer need pam_misc_copy_env()
341 which was there to provide the robustness that pam_getenvlist()
344 Accordingly, I have REMOVED the prototype from libpam_misc. (The
345 function, however, will remain in the library as a wrapper for
346 legacy apps, but will likely be removed from libpam_misc-1.0.) PLEASE
347 FIX YOUR APPS *BEFORE* WE GET THERE!
349 * Alexy Nogin reported garbage output from pam_env in the case of
350 a non-existent environment variable.
352 * 'fixed' pwdb compilation for pam_wheel. Not very cleanly
353 done.. Mmmm. Should really clean up the entire source tree...
355 * added prototypes for mapping functions
359 various constants have had there names changed. Numerical values have
360 been retained but be aware some source old modules/applications will
361 need to be fixed before recompilation.
365 * appended documentation to README for pam_rhosts module (Nicolai
368 * verified X/Open compatibility of header files - note, where we differ
369 it is at the level of compilation warnings and the use of 'const char *'
370 instead of 'char *'. Previously, Sun(X/open) have revised their spec
371 to be more 'const'-ervative in the light of comments from Linux-PAM
374 * Ooops! PAM_AUTHTOKEN_REQD should have been PAM_NEW_AUTHTOK_REQD.
376 changed: pam_pwdb(pam_unix_acct) (also bug fix for
377 _shadow_acct_mgmt_exp() return value), pam_stress,
378 libpam/pam_dispatch, blank, xsh.
380 * New: PAM_AUTHTOK_EXPIRED - password has expired.
382 * Ooops! PAM_CRED_ESTABLISH (etc.) should have been PAM_ESTABLISH_CRED
383 etc... (changed - this may break some people's modules - PLEASE TAKE
385 changed: pam_group, pam_mail, blank, xsh; module and appl
386 docs, pam_setcred manual page.
388 * renamed internal _pam_handle structure to be pam_handle as per XSSO.
390 * added PAM_RADIO_TYPE (for multiple choice input method). Also
391 added PAM_BINARY_{MSG,PROMPT} (for interaction out of sight of user
392 - this could be used for RSA type authentication but is currently
393 just there for experimental purposes). The _BINARY_ types are now
394 usable with hooks in the libpam_misc conversation function. Still
395 have to add PAM_RADIO_TYPE.
397 * added pam_access module (Alexei Nogin)
399 * added documentation for pam_lastlog. Also modified the module to
400 not (by default) print "welcome to your new account" when it cannot
401 find a utmp entry for the user (you can turn this on with the
404 * small correction to the pam_fail_delay manual page. Either the appl or
405 the modules header file will prototype this function.
407 * added "bigcrypt" (DEC's C2) algorithm(0) to pam_pwdb. (Andy Phillips)
409 * *BSD tweaking for various #include's etc. (pam_lastlog, pam_rhosts,
410 pam_wheel, libpam/pam_handlers). (Michael Smith)
412 * added configuration directory $SCONFIGED for module specific
415 * added two new "linked" man pages (pam.conf(8) and pam.d(8))
417 * included a reasonable default for /etc/pam.conf (which can be
418 translated to /etc/pam.d/* files with the pam_conv1 binary)
420 * fixed the names of the new configuration files in
421 conf/pam_conv1/pam_conv.y
425 * pam_lastlog fixed to handle UID in virgin part of /var/log/lastlog
426 (bug report from Ronald Wahl).
428 * grammar fix in pam_cracklib
430 * segfault avoided in pam_pwdb (getting user). Updating of passwords
431 that are directed to a "new" database are more robust now (bug noted
432 by Michael K. Johnson). Added "unix" module argument for migrating
433 passwords from another database to /etc/passwd. (documentation
434 updated). Removed "bad username []" warning for empty passwords -
435 on again if you supply the 'debug' module argument.
437 * ctrl-D respected in conversation function (libpam_misc)
439 * Removed -DPAM_FAIL_DELAY_ON from top-level Makefile. Nothing in
440 the distribution uses it. I guess this change happened a while
441 back, basically I'm trying to make the module parts of the
442 distribution "source compatible" with the RFC definition of PAM.
443 This implementation of PAM is a superset of that definition. I have
444 added the following symbols to the Linux-PAM header files:
446 PAM_DATA_SILENT (see _pam_types.h)
447 HAVE_PAM_FAIL_DELAY (see _pam_types.h)
448 PAM_DATA_REPLACE (see _pam_modules.h)
450 Any module (or application) that wants to utilize these features,
451 should check (#ifdef) for these tokens before using the associated
452 functionality. (Credit to Michael K. Johnson for pointing out my
453 earlier omission: not documenting this change :*)
455 * first stab at making modules more independent of full library
456 source. Modules converted:
462 * pam_env.c: #include <errno.h> added to ease GNU libc use. (Michael
465 * pam_unix_passwd fixes to shadow aging code (Eliot Frank)
467 * added README for pam_tally
469 0.57: Fri Apr 4 23:00:45 PST 1997 Andrew Morgan <morgan@parc.power.net>
471 * added "nodelay" argument to pam_pwdb. This can be used to turn off
472 the call to pam_fail_delay that takes effect when the user fails to
473 authenticate themself.
475 * added "suppress" argument to pam_rhosts_auth module. This will stop
476 printing the "rlogin failure message" when the user does not have a
479 * Extra fixes for FAKEROOT in Makefiles (Savochkin Andrey
482 * pam_tally added to tree courtesy of Tim Baverstock
484 * pam_rhosts_auth was failing to read NFS mounted .rhosts
485 files. (Fixed by Peter Allgeyer). Refixed and further enhanced
486 (netgroups) by Nicolai Langfeldt. [Credit also to G.Wilford for some
487 changes that were not actually included..]
489 * optional (#ifdef PAM_READ_BOTH_CONFS) support for parsing of pam.d/
490 AND pam.conf files (Elliot Lee).
492 * Added (and signed) Cristian's PGP key. (I've never met him, but I am
493 convinced the key belongs to the guy that is making the PAM rpms and
494 also producing libpwdb. Please note, I will not be signing anyone
495 else's key without a personal introduction..)
497 * fixed erroneous syslog warning in pam_listfile (Savochkin Andrey
498 Vladimirovich, whole file reformatted by Cristian)
500 * modified pam_securetty to return PAM_IGNORE in the case that the user's
501 name is not known to the system (was previously, PAM_USER_UNKNOWN). The
502 Rationale is that pam_securetty's sole purpose is to prevent superuser
503 login anywhere other than at the console. It is not its concern that the
504 user is unknown - only that they are _not_ root. Returning
505 PAM_IGNORE, however, insures that the pam_securetty can never be used to
506 "authenticate" a non-existent user. (Cristian Gafton with bug report from
509 * Modified pam_nologin to display the no-login message when the user
510 is not known. The return value in this case is still PAM_USER_UNKNOWN.
511 (Bug report from Cristian Gafton)
513 * Added NEED_LCKPWD for pam_unix/ This is used to define the locking
514 functions and should only be turned on if you don't have them in
517 * tidied up pam_lastlog and pam_pwdb: removed function that was never used.
519 * Note for package maintainers: I have added $(FAKEROOT) to the list of
520 environment variables. This should help greatly when you build PAM
521 in a subdirectory. I've gone through the tree and tried to make
522 everything compatible with it.
524 * added pam_env (courtesy of Dave Kinchlea)
526 * removed pam_passwd+ from the tree. It has not been maintained in a
527 long time and running a shell script was basically insecure. I've
528 indicated where you can pick up the source if you want it.
530 * #define HAVE_PAM_FAIL_DELAY . Applications can conditionally compile
531 with this if they want to see if the facility is available. It is
532 now always available. (corresponding compilation cleanups..)
534 * _pam_sanitize() added to pam_misc. It purges the PAM_AUTHTOK and
535 PAM_OLDAUTHTOK items. (calls replaced in pam_auth and pam_password)
537 * pam_rhosts now knows about the '+' entry. Since I think this is a
538 dangerous thing, I have required that the sysadmin supply the
539 "promiscuous" flag for it in the corresponding configuration file
542 * FULL_LINUX_PAM_SOURCE_TREE exported from the top level make file.
543 If you want to build a module, you can test for this to determine if
544 it should take its directions from above or supply default locations
545 for installation. Etc.
547 0.56: Sat Feb 15 12:21:01 PST 1997 <morgan@parc.power.net>
549 * pam_handlers.c can now interpret the pam.d/ service config tree:
550 - if /etc/pam.d/ exists /etc/pam.conf is IGNORED
551 (otherwise /etc/pam.conf is treated as before)
553 . config files are named (in lower case) by service-name
554 . config files have same syntax as /etc/pam.conf except
555 that the "service-name" field is not present. (there
556 are thus three manditory fields (and arguments are
559 module-type control-flag module-path optional-args...
563 * included conf/pam_conv1 for converting pam.conf to a pam.d/ version
564 1.0 directory tree. This program reads a pam.conf file on the
565 standard input stream and creates ./pam.d/ (in the local directory)
566 and fills it with ./pam.d/"service-name" files.
568 *> Note: It will fail if ./pam.d/ already exists.
570 PLEASE REPORT ANY BUGS WITH THIS CONVERSION PROGRAM... It currently
571 cannot retain comments from the old conf file, so take care to do this
572 by hand. Also, please email me with the fix that makes the
573 shift/reduce conflict go away...
575 * Added default module path to libpam for modules (see pam_handlers.c)
576 it makes use of Makfile defined symbol: DEFAULT_MODULE_PATH which is
577 inhereted from the defs/* variable $(SECUREDIR). Removed module
578 paths from the sample pam.conf file as they are no longer needed.
580 * pam_pwdb can now verify read protected passwords when it is not run
581 by root. This is via a helper binary that is setuid root.
583 * pam_permit now prompts for a username if it is not already determined
585 * pam_rhosts now honors "debug" and no longer hardwire's "root" as the
588 * pam_securetty now honors the "debug" flag
590 * trouble parsing extra spaces fixed in pam_time and pam_group
592 * added Michael K. Johnson's PGP key to the pgp.keys.asc list
594 * pam_end->env not being free()'d: fixed
596 * manuals relocated to section 3
598 * fixed bug in pam_mail.c, and enhanced to recognize '~' as a prefix
599 to indicate the $HOME of the user (courtesy David
600 Kinchlea). *Changed* from a "session" module to an "auth"
601 module. It cannot be used to authenticate a user, but it can be used
602 in setting credentials.
604 * fixed a stupid bug in pam_warn.. Only PAM_SERVICE was being read :*(
606 * pam_radius rewritten to exclusively make use of libpwdb. (minor fix
607 to Makefile for cleaning up - AGM)
609 * pam_limits extended to limit the total number of logins on a system
612 * libpam and libpam_misc use $(MAJOR_REL) and $(MINOR_REL) to set their
613 version numbers [defined in top level makefile]
615 * bugfix in sed command in defs/redhat.defs (AGM's fault)
617 * The following was related to a possibility of buffer overruns in
618 the syslogging code: removed fixed length array from syslogging
619 function in the following modules [capitalized the log identifier
620 so the sysadmin can "know" these are fixed on the local system],
622 pam_ftp, pam_stress, pam_rootok, pam_securetty,
623 pam_listfile, pam_shells, pam_warn, pam_lastlog
625 pam_unix_passwd (where it was definitely _not_ exploitable)
627 0.55: Sat Jan 4 14:43:02 PST 1997, Andrew Morgan <morgan@parc.power.net>
629 * added "requisite" control_flag to /etc/pam.conf syntax. [See
630 Sys. Admin. Guide for explanation] changes to pam_handlers.c
632 * completely new handling of garbled pam.conf lines. The modus
633 operandi now is to assume that any errors in the line are minor.
634 Errors of this sort should *most definitely* lead to the module
635 failing, however, just ignoring the line (as was the case
636 previously) can lead to gaping security holes(! Not foreseen by the
637 RFC). The "motivation" for the RFC's comments about ignoring garbled
638 lines is present in spirit in the new code: basically a garbled line
639 is treated like an instance of the pam_deny.so module.
640 changes to pam_handlers.c and pam_dispatch.c .
642 * patched libpam, to (a) call _pam_init_handlers from pam_start() and
643 (b) to log a text error if there are no modules defined for a given
644 service when a call to a module is requested. [pam_start() and
645 pam_dispatch() were changed].
647 * patched pam_securetty to deal with "/dev/" prefix on PAM_TTY item.
649 * reorganized the modules/Makefile to include *ALL* modules. It is now
650 the responsibility of the modules themselves to test whether they can
651 be compiled locally or not.
653 * modified pam_group to add to the getgroups() list rather than overwrite
654 it. [In the case of "HAVE_LIBPWDB" we use the pwdb_..() calls to
655 translate the group names.]. Module now pays attention to
658 * identified and removed bugs in field reading code of pam_time and
661 * Cristian's patches to pam_listfile module, corresponding change to
664 * I've discovered &ero; for sgml!
665 Added pam_time documentation to the admin guide.
667 * added manual pages: pam.8, pam_start.2(=pam_end.2),
668 pam_authenticate.2, pam_setcred.2, pam_strerror.2,
669 pam_open_session.2(=pam_close_session.2) and pam_chauthtok.2 .
673 - pam_mail (tells the user if they have any new mail
674 and sets their MAIL env variable)
675 - pam_lastlog (reports on the last time this user called
678 * new module hooks provided.
680 * added a timeout feature to the conversation function in
681 libpam_misc. Documented it in the application developers' guide.
683 * fixed bug in pam_misc_paste_env() function..
685 * slight modifications to wheel and rhosts writeup.
687 * more security issues added to module and application guides.
690 Things present but not mentioned in previous release (sorry)
692 * pam_pwdb module now resets the "last_change" entry before updating a
696 Sat Nov 30 19:30:20 PST 1996, Andrew Morgan <morgan@parc.power.net>
698 * added environment handling to libpam. involved change to _pam_types.h
699 also added supplementary functions to libpam_misc
701 * added pam_radius - Cristian
703 * slight speed up for pam_rhosts
705 * significantly enhanced sys-admin documentation (8 p -> 41 p in
706 PostScript). Added to other documentation too. Mostly the changes
707 in the other docs concern the new PAM-environment support, there is
708 also some coverage of libpam_misc in the App. Developers' guide.
710 * Cristian's patches to pam_limits and pam_pwdb. Fixing bugs. (MORE added)
712 * adopted Cristian's _pam_macros.h file to help with common macros and
713 debugging stuff, gone through tree tidying up debugging lines to use
716 - for consistency replaced DROP() with _pam_drop()
718 * commented memory debugging in top level makefile
720 * added the following modules
722 - pam_warn log information to syslog(3) about service application
723 - pam_ftp if user is 'ftp' then set PAM_RUSER/PAM_RHOST with password
724 (comment about nologin added to last release's notes)
726 * modified the pam_listfile module. It now declares a meaningful static
729 Sun Nov 10 13:26:39 PST 1996, Andrew Morgan <morgan@parc.power.net>
731 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
733 -------> http://parc.power.net/morgan/Linux-PAM/index.html <-------
735 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
737 A brief summary of what has changed:
739 * many modules have been modified to accomodate fixing the pam_get_user()
740 change. Please take note if you have a module in this distribution.
742 * pam_unix is now the pam_unix that Red Hat has been using and which
743 should be fairly well debugged.
745 - I've added some #ifdef's to make it compile for me, and also
746 updated it with respect to the libpam-0.53, so have a look at the
747 .../modules/pam_unix/Makefile to enable cracklib and shadow features
749 ** BECAUSE OF THIS, I cannot guarantee this code works as it **
750 ** did for Red Hat. Please test and report any problems. **
752 * the pam_unix of .52 (renamed to pam_pwdb) has been enhanced and made
753 more flexible with by implementing it with respect to the new
754 "Password Database Library" see
756 http://parc.power.net/morgan/libpwdb/index.html
758 modules included in this release that require this library to
759 function are the following:
761 - pam_pwdb (ne pam_unix-0.52 + some enhancements)
766 * Added some optional code for memory debugging. In order to support
767 this you have to enable MEMORY_DEBUG in the top level makefile and
768 also #define MEMORY_DEBUG in your applications when they are compiled.
769 The extra code resides in libpam (compiled if MEMORY_DEBUG is defined)
770 and the macros for malloc etc. are to be found at the end of
773 * used above code to locate two memory leaks in pam_unix module and two
774 in libpam (pam_handlers.h)
776 * pam_get_user() now sets the PAM_USER item. After reading the Sun
777 manual page again, it was clear that it should do this. Various
778 modules have been assuming this and now I have modified most of them
779 to account for this change. Additionally, pam_get_user() is now
780 located in the module include file; modules are supposed to be the
781 ones that use it(!) [Note, this is explicitly contrary to the Sun
782 manual page, but in the spirit of the Linux distribution to date.]
784 * replaced -D"LINUX" with -D"LINUX_PAM" as this is more explicit and less
785 likely to be confused with -D"linux".
786 Also, modified the libpam #include files to behave more like the Sun
787 ones #ifndef LINUX_PAM.
789 * removed <bf/ .. / from documentation titles. This was not giving
790 politically correct html..
792 ----- My vvvvvvvvvvvvvvvvvvv was a long time ago ;*] -----
794 Wed Sep 4 23:57:19 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>
796 0. Before I begin, Linux-PAM has a new primary distribution site (kindly
797 donated by Power Net Inc., Los Angeles)
799 **PLEASE AMMEND YOUR PERSONAL LINKS**
801 -------> http://www.power.net/morgan/Linux-PAM <-------
803 **PLEASE AMMEND YOUR PERSONAL LINKS**
805 1. I'm hoping to make the next release a bug-fix release... So please find
808 2. here are the changes for .52:
810 * minor changes to module documentation [Incidently, it is now
811 available on-line from the WWW page above]. More changes to follow in
812 the next two releases. PLEASE EMAIL me or the list if there is
813 anything that isn't clear!
815 * completely changed the unix module. Now a single module for all four
816 management groups (this meant that I could define all functions as
817 static that were not part of the pam_sm_... scheme. AGM)
819 - Shadow support added
820 PASSWD - Elliot's account management included, and enhanced by Cristian Gafton.
821 - MD5 password support added by Cristian Gafton.
822 - maxtries for authentication now enforced.
823 - Password changing function in pam_unix now works!
824 Although obviously, I'm not going to *guarantee* it ;^) .
825 - stole Marek's locking code from the Red Hat unix module.
826 [ If you like you can #ifdef it in or out ... ]
828 You can configure the module more from its Makefile in
829 0.52/modules/pam_unix/
831 If you are nervous that it will destroy your /etc/passwd or shadow
832 files then EDIT the 0.52/modules/pam_unix/pam_unix_pass.-c file.
833 Here is the warning comment from this file...
835 -------------8<-----------------
838 * Uncomment the following #define if you are paranoid, and do not
839 * want to risk losing your /etc/passwd or shadow files.
840 * It works for me (AGM) but there are no guarantees.
844 /* #define TMP__FILE */
845 ------------->8-----------------
847 *** If anyone has any trouble, please *say*. Your problem will be
848 fixed in the next release. Also please feel free to scour the
849 code for race conditions etc...
851 [* The above change requires that you purge your /usr/lib/security
852 directory of the old pam_unix_XXX.so modules: they will NOT be deleted
853 with a 'make remove'.]
855 * the prototype for the cleanup function supplied to pam_set_data used
856 to return "int". According to Sun it should be "void". CHANGED.
858 * added some definitions for the 'error_status' mask values that are
859 passed to the cleanup function associated with each
860 module-data-item. These numbers were needed to keep up with changing
861 a data item (see for example the code in pam_unix/support.-c that
862 manages the maximum number of retries so far). Will see what Sun says
863 (current indications are positive); this may be undone before 1.0 is
864 released. Here are the definitions (from pam_modules.h).
866 #define PAM_DATA_SILENT 0x40000000 /* used to suppress messages... */
867 #define PAM_DATA_REPLACE 0x20000000 /* used when replacing a data item */
869 * Changed the .../conf/pam.conf file. It now points to the new
870 pam_unix module for 'su' and 'passwd' [can get these as SimpleApps --
871 I use them for testing. A more extensive selection of applications is
872 available from Red Hat...]
874 * corrected a bug in pam_dispatch. Basically, the problem was that if
875 all the modules were "sufficient" then the return value for this
876 function was never set. The net effect was that _pam_dispatch_aux
877 returned success when all the sufficient modules failed. :^( I think
878 this is the correct fix to a problem that the Red Hat folks had
881 sopwith* Removed advisory locking from libpam (thanks for the POSIX patch
882 goes to Josh Wilmes's, my apologies for not using it in the
883 end.). Advisory locking did not seem sufficiently secure for libpam.
884 Thanks to Werner Almesberger for identifying the corresponding "denial
885 of service attack". :*(
887 * related to fix, have introduced a lock file /var/lock/subsys/PAM
888 that can be used to indicate the system should pay attention to
889 advisory locking on /etc/pam.conf file. To implement this you need to
890 define PAM_LOCKING though. (see .52/libpam)
892 * modified pam_fail_delay() function. Couldn't find the "not working"
893 problem indicated by Michael, but modified it to do pseudo-random
894 delays based on the values indicated by pam_fail_delay() -- the
895 function "that may eventually go away"... Although Sun is warming to
898 * new modules include:
900 pam_shells - authentication for users with a shell listed in
901 /etc/shells. Erik Troan <ewt@redhat.com>
903 pam_listfile - authentication based on the contents of files.
904 Set to be more general than the above in the
905 future. UNTESTED. Elliot Lee <@redhat.com>
906 [Note, this module compiles with a non-trivial
909 Thu Aug 8 22:32:15 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
911 * modified makefiles to take more of their installation instructions
912 from the top level makefile. Desired for integration into the Debian
913 distribution, and generally a good idea.
915 * fixed memory arithmetic in pam_handlers
916 -- still need to track down why failure to load modules can lead to
917 authentication succeding..
919 * added tags for new modules (smartcards from Alex -- just a promise
920 at this stage) and a new module from Elliot Lee; pam_securetty
922 * I have not had time to smooth out the wrinkles with it, but Alex's
923 pam_unix modifications are provided in pam_unix-alex (in the modules
924 directory) they will not be compiled by 'make all' and I can't even
925 say if they do compile... I will try to look at them for .52 but, in
926 the mean time please feel free to study/fix/discuss what is there.
928 * pam_rhosts module. Removed code for manually setting the ruser
929 etc. This was not very secure.
931 * [remade .ps docs to be in letter format -- my printer complains
934 Sunday July, 7 12:45:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
936 * No longer accompanying the Linux-PAM release with apps installed.
937 [Will provide what was here in a separate package.. (soon)
938 lib Also see http://www.redhat.com/pam for some more (in .rpm form...)]
940 * renamed libmisc to libpam_misc. It is currently configured to only compile
941 the static library. For some strange reason (perhaps someone can
942 investigate) my Linux 2.0.0 kernel with RedHat 3.0.3 system
943 segfaults when I compile it to be a dynamic library. The segfault
944 seems to be inside the call to the ** dl_XXX ** function...!?
946 There is a simple flag in the libpam_misc/Makefile to turn on dynamic
949 * Added a little unofficial code for delay support in libpam (will probably
950 disappear later..) There is some documentation for it in the pam_modules
951 doc now. That will obviously go too.
953 * rewritten pam_time to use *logic* to specify the stringing together of
954 users/times/terminals etc.. (what was there before was superficially
955 logical but basically un-predictable!)
957 * added pam_group. Its syntax is almost identical to pam_time but it
958 has another field added; a list of groups to make the user a member
959 of if they pass the previous tests. It seems to not co-exist too well
960 with the groups in the /etc/group but I hope to have that fixed by
963 * minor re-formatting of pam_modules documentation
965 * removed ...// since it wasn't being used and didn't look like it
968 GCCSunday 23 22:35:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
970 * The major change is the addition of a new module: pam_time for
971 restricting access on terminals at given times for indicated users
972 it comes with its own configuration file /etc/security/time.conf
973 and the sample file simply restricts 'you' from satisfying the blank
974 application if they try to use blank from any tty*
976 * Small changes include
977 - altered pam.conf to demonstrate above new module (try typing username: you)
978 - very minor changes to the docs (pam_appl and pam_modules)
980 Saturday June 2 01:40:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
982 *** PLEASE READ THE README, it has changed ***
984 * NOTE, 'su' exhibits a "system error", when static linking is
985 used. This is because the pam_unix_... module currently only has
986 partial static linking support. This is likely to change on Monday
987 June 3, when Alex makes his latest version availible. I will include
988 the updated module in next release.
992 * modified the way in which libpam/pam_modules.h defines prototypes for
993 the pam_sm_ functions. Now the module must declare which functions it
994 is to provide *before* the #include <security/pam_modules.h> line.
995 (for contrasting examples, see the pam_deny and pam_rootok modules)
996 This removed the ugly hack of defining functions that are never called
997 to overcome warnings... This seems much tidier.
998 insterted* updated the TODO list. (changed mailing list address)
999 * updated README in .../modules to reflect modifications to static
1000 compliation protocol
1001 * modified the pam_modules documentation to describe this.
1002 * corrected last argument of pam_get_item( ... ) in
1003 pam_appl/modules.sgml, to "const void **".
1004 * altered GNU GPL's in the documentation, and various other parts of
1005 the distribution. *Please check* that any code you are responsible for
1007 * Added ./Copyright (please check that it is acceptable)
1008 * updated ./README to make current and indicate the new mailing list
1010 * have completely rewritten pam_filter. It now runs modular filter
1011 executables (stored in /usr/sbin/pam_filter/) This should make it
1012 trivial for others to write their own filters.. If you want yours
1013 included in the distribution please email the list/me.
1014 * changes to libpam; there was a silly bug with multiple arguments on a
1015 pam.conf line that was broken with a '\<LF>'.
1016 * 'su' rearranged code (to make better use of PAM)
1017 *Also* now uses POSIX signals--this should help the Alpha port.
1018 * 'passwd' now uses getlogin() to determine who's passwords to change.
1020 Sunday May 26 9:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1022 * fixed module makefiles to create needed dynamic/static subdirectories
1024 Saturday May 25 20:30:27.8 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1026 * LOTS has changed regarding how the modules/libpam are built.
1027 * Michael's mostly complete changes for static support--see below
1028 (Andrew got a little carried away and automated the static linking
1029 of modules---bugs are likely mine ;( )
1030 * Thanks mostly to Michael, libpam now compiles without a single warning :^]
1031 * made static modules/library optional.
1032 CFLAGS* added 'make sterile' to top level makefile. This does extraclean and remove
1033 * added Michael and Joseph to documentation credits (and a subsection for
1034 future documentation of static module support in pam_modules.sgml)
1035 * libpam; many changes to makefiles and also automated the inclusion of
1036 static module objects in pam_static.c
1037 * modified modules for automated static/dynamic support. Added static &
1038 dynamic subdirectories, as instructed by Michael
1039 * removed an annoying syslog message from pam_filter: "parent exited.."
1040 * updated todo list (anyone know anything about svgalib/X? we probably should
1041 have some support for these...)
1043 Friday May 24 16:30:15 EDT 1996 (Michael K. Johnson <johnsonm@redhat.com>)
1045 * Added first (incomplete) cut at static support.
1047 . changes in libpam, including a new file, pam_static.c
1048 . changes to modules including exporting struct of function pointers
1049 . static and dynamic linking can be combined
1050 . right now, the only working combinations are just dynamic
1051 linking and dynamic libpam.so with static modules linked
1052 into libpam.so. That's on the list of things to fix...
1053 . modules are built differently depending on whether they
1054 are static or dynamic. Therefore, there are two directories
1055 under each module directory, one for static, and one for
1057 * Fixed random brokenness in the Makefiles. [ foo -nt bar ] is
1058 rather redundant in a makefile, for instance. Also, passing
1059 on the command line is broken because it cannot be
1060 overridden in any way (even adding important parts) in lower-level
1062 * Unfortunately, fixing some of the brokenness meant that I used
1063 GNU-specific stuff. However, I *think* that there was GNU-specific
1064 stuff already. And I think that we should just use the GNU
1065 extensions, because any platform that GNU make doesn't port to
1066 easily will be hard to port to anyway. It also won't be likely
1067 passwd to handle autoconf, which was Ted's suggestion for getting
1068 around limitations in standard make...
1069 For now, I suggest that we just use some simple GNU-specific
1072 Monday May 20 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1074 * added some text to pam_modules.sgml
1075 * corrected Marek's name in all documentation
1076 * made pam_stress conform to chauthtok conventions -- ie can now request
1077 old password before proceeding.
1078 * included Alex's latest unix module
1079 * included Al's + password strength checking module
1080 * included pam_rootok module
1081 * fixed too many bugs in libpam.. all subtly related to the argument lists
1082 or use of syslog. Added more debugging lines here too.
1083 * fixed the pam.conf file
1084 * deleted pam_test module. It is pretty old and basically superceeded
1087 Friday May 9 1:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1089 * updated documentaion, added Al Longyear to credits and corrected the
1090 spelling of Jeff's name(!). Most changes to pam.sgml (even added a figure!)
1091 * new module pam_rhosts_auth (from Al Longyear)
1092 * new apps rlogind and ftpd (a patch) from Al.
1093 * modified 'passwd' to not call pam_authenticate (note, none of the
1094 modules respect this convention yet!)
1095 * fixed bug in libpam that caused trouble if the last line of a
1096 pam.conf file ends with a module name and no newline character
1097 * also made more compatable with documentation, in that bad lines in
1098 pam.conf are now ignored rather than causing libpam to return an
1100 * libpam now overwrites the AUTHTOKs when returning from
1101 pam_authenticate and pam_chauthtok calls (as per Sun/RFC too)
1102 * libpam is now installed as libpam.so.XXX in a way that ldconfig can
1106 Wednesday May 1 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1108 * removed .../test directory, use .../examples from now on.
1109 * added .../apps directory for fully functional applications
1110 - the apps directory contains directories that actually contain the apps.
1111 the idea is to make application compilation conditional on the presence
1112 of the directory. Note, there are entries in the Makefile for
1113 'login' and 'ftpd' that are ready for installation... Email me if
1114 you want to reserve a directory name for an application you are
1116 * similar changes to .../modules makefile [entries for pam_skey and
1117 pam_kerberos created---awaiting the directories.] Email me if you
1118 want to register another module...
1119 * minor changes to docs.. Not really worth reprinting them quite yet!
1121 * added misc_conv to libmisc. it is a generic conversation function
1122 for text based applications. [would be nice to see someone create
1123 an Xlib and/or svgalib version]
1124 * fixed ctrl-z/c bug with pam_filter module [try xsh with the default
1126 * added 'required' argument to 'pam_stress' module.
1127 * added a TODO list... other suggestions to the list please.
1129 Saturday April 7 00:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1131 * Alex and Marek please note I have altered _pam_auth_unix a little, to
1132 make it get the passwords with the "proper method" (and also fixed it
1133 to not have as many compiler warnings)
1134 * updated the conf/pam.conf file
1135 * added new example application examples/xsh.c (like blank but invokes
1137 * Marc's patches for examples/blank.c (and AGM's too)
1138 * fixed stacking of modules in libpam/pam_handlers.c
1139 * fixed RESETing in libpam/pam_item.c
1140 * added new module modules/pam_filter/ to demonstrate the possibility
1141 of inserting an arbitrary filter between the terminal and the
1142 application that could do customized logging etc... (see use of
1143 bin/xsh as defined in conf/pam.conf)
1146 Saturday March 16 19:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1148 These notes are for 0.3 I don't think I've left anything important
1149 out, but I will use emacs 'C-x v a' next time! (Thanks Jeff)
1151 * not much has changed with the functionality of the Linux-PAM lib
1153 - pam_password calls module twice with different arguments
1154 - added const to some of the function arguments
1155 - added PAM_MAX_MES_ to <security/_pam_types.h>
1156 - was a lot over zealous about purging old passwords...
1157 I have removed much of this from source to make it
1158 more compatible with SUN.
1159 - moved some PAM_... tokens to pam_modules.h from _pam_types.h
1160 (no-one should notice)
1162 * added three modules: pam_permit pam_deny pam_stress
1163 no prizes for guessing what the first two do. The third is
1164 a reasonably complete (functional) module. Is intended for testing
1167 * fixed a few pieces of examples/blank.c so that it works (with
1170 * ammended the documentation. Looking better, but suggestions/comments
1173 Sunday March 10 10:50:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1175 These notes are for Linux-PAM release 0.21. They cover what's changed
1176 since I relased 0.2.
1179 * substantially changed ./README
1180 * fixed bug reading \\\n in pam.conf file
1181 * small changes to documentation
1182 * added `blank' application to ./examples (could be viewed as
1183 a `Linux-PAM aware' application template.)
1184 * oops. now including pam_passwd.o and pam_session.o in pamlib.so
1185 * compute md5 checksums for all the source when making a release
1186 - added `make check' and `make RCScheck' to compute md5 checksums
1187 * create a second tar file with all the RCS files in.
1188 * removed the .html and .txt docs, supplying sgml sources instead.
1189 - see README for info on where to get .ps files
1191 Thursday March 6 0:44:?? PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1193 These notes are for Linux-PAM release 0.2. They cover what's changed
1194 since Marc Ewing relased 0.1.
1196 **** Please note. All of the directories in this release have been modified
1197 **** slightly to conform to the new pamlib. A couple of new directories have
1198 **** been added. As well as some documentation. If some of your code
1199 **** was in the previous release. Feel free to update it, but please
1200 **** try to conform to the new headers and Makefiles.
1202 * Andrew Morgan (morgan@physics.ucla.edu) is making this release
1203 availible, Marc has been busy...!
1205 * Marc's pam-0.1/lib has been (quietly) enhanced and integrated into
1206 Alex Yurie's collected tree of library and module code
1207 (linux-pam.prop.1.tar.gz). Most of the changes are to do with error
1208 checking. Some more robustness in the reading of the pam.conf file
1209 and the addition of the pam_get_user() function.
1211 * The pam_*.h files have been reorganized to logically enforce the
1212 separation of modules from applications. [Don't panic! Apart from
1213 changing references of the form
1215 #include "pam_appl.h"
1219 #include <security/pam_appl.h>
1221 The reorganization should be backwardly compatable (ie. a module
1222 written for SUN will be as compatable as it was before with the
1223 previous version ;)~ ]
1225 (All of the source in this tree now conforms to this scheme...)
1227 The new reorganization means that modules can be compiled with a
1228 single header, <security/pam_modules.h>, and applications with
1229 <security/pam_appl.h>.
1231 * I have tried to remove all the compiler warnings from the updated
1232 "pamlib/*.c" files. On my system, (with a slightly modified <dlfcn.h>
1233 email me if it interests you..) there are only two warnings that
1234 remain: they are that ansi does not permit void --> fn ptr
1235 assignment. K&Rv2 doesn't mention this....? As a matter of principle,
1236 if anyone knows how to get rid of that warning... please
1237 tell. Thanks! "-pedantic"
1239 * you can "make all" as a plain user, but
1241 * to "make install" you must be root. The include files are placed in
1242 /usr/include/security. The libpam.so library is installed in /usr/lib
1243 and the modules in /usr/lib/security. The two test binaries
1244 are installed in the Linux-PAM-0.2/bin directory and a chance is given to
1245 replace your /etc/pam.conf file with the one in Linux-PAM-0.2/conf.
1247 * I have included some documentation (pretty preliminary at the
1248 moment) which I have been working on in .../doc .
1250 I have had a little trouble with the modules, but atleast there are no
1251 segfaults! Please try it out and discuss your results... I actually
1252 hope it all works for you. But, Email any bugs/suggestions to the
1253 Linux-PAM list: linux-pam@mit.edu .....
1258 (morgan@physics.ucla.edu)
1261 Sat Feb 17 17:30:24 EST 1996 (Alexander O. Yuriev alex@bach.cis.temple.edu)
1263 * conf directory created with example of pam_conf
1264 * stable code from pam_unix is added to modules/pam_unix
1265 * test/test.c now requests username and password and attempts
1266 to perform authentication