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* treewide: fix typos in comments and documentationTobias Stoeckmann2023-12-181-1/+1
| | | | Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
* treewide: assume free(NULL) is no-opDmitry V. Levin2023-12-141-2/+1
| | | | | The C standard guarantees that if the argument of free() is a null pointer, no action occurs.
* modules: do not check user name for NULL if pam_get_user returned PAM_SUCCESSDmitry V. Levin2020-05-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If pam_get_user returned PAM_SUCCESS, the user name is guaranteed to be a valid C string, no need to double check that. * modules/pam_access/pam_access.c (pam_sm_authenticate): Do not check for NULL the user name returned by pam_get_user when the latter returned PAM_SUCCESS. * modules/pam_cracklib/pam_cracklib.c (_pam_unix_approve_pass): Likewise. * modules/pam_debug/pam_debug.c (pam_sm_authenticate): Likewise. * modules/pam_filter/pam_filter.c (process_args): Likewise. * modules/pam_ftp/pam_ftp.c (pam_sm_authenticate): Likewise. * modules/pam_group/pam_group.c (pam_sm_setcred): Likewise. * modules/pam_lastlog/pam_lastlog.c (pam_sm_authenticate): Likewise. * modules/pam_listfile/pam_listfile.c (pam_sm_authenticate): Likewise. * modules/pam_localuser/pam_localuser.c (pam_sm_authenticate): Likewise. * modules/pam_mail/pam_mail.c (_do_mail): Likewise. * modules/pam_nologin/pam_nologin.c (perform_check): Likewise. * modules/pam_permit/pam_permit.c (pam_sm_authenticate): Likewise. * modules/pam_pwhistory/pam_pwhistory.c (pam_sm_chauthtok): Likewise. * modules/pam_rhosts/pam_rhosts.c (pam_sm_authenticate): Likewise. * modules/pam_securetty/pam_securetty.c (pam_sm_authenticate): Likewise. * modules/pam_sepermit/pam_sepermit.c (pam_sm_authenticate): Likewise. * modules/pam_shells/pam_shells.c (perform_check): Likewise. * modules/pam_stress/pam_stress.c (pam_sm_authenticate): Likewise. * modules/pam_succeed_if/pam_succeed_if.c (pam_sm_authenticate): Likewise. * modules/pam_time/pam_time.c (pam_sm_acct_mgmt): Likewise. * modules/pam_timestamp/pam_timestamp.c (get_timestamp_name): Likewise. * modules/pam_umask/pam_umask.c (pam_sm_open_session): Likewise. * modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Likewise. * modules/pam_unix/pam_unix_passwd.c (pam_sm_chauthtok): Likewise. * modules/pam_usertype/pam_usertype.c (pam_usertype_get_uid): Likewise. * modules/pam_wheel/pam_wheel.c (perform_check): Likewise. * modules/pam_userdb/pam_userdb.c (pam_sm_authenticate, pam_sm_acct_mgmt): Likewise.
* modules: remove PAM_SM_* macrosDmitry V. Levin2020-05-031-5/+2
| | | | | | Starting with commit a684595c0bbd88df71285f43fb27630e3829121e aka Linux-PAM-1.3.0~14 (Remove "--enable-static-modules" option and support from Linux-PAM), PAM_SM_* macros have no effect.
* Lower "bad username" log priority (#154)Sophie Herold2019-11-281-1/+1
| | | | | * modules/pam_unix/pam_unix_auth.c: Use LOG_NOTICE instead of LOG_ERR. * modules/pam_unix/pam_unix_passwd.c: Likewise. * modules/pam_umask/pam_umask.c: Likewise.
* pam_unix: Add logging useful for debugging problemsTomas Mraz2019-10-141-3/+4
| | | | | | | | | | | | | | | | Two messages added about obtaining the username are guarded by the debug option as these should not be normally logged - they can be useful for debugging but they do not indicate any special condition. The message about authenticating user with blank password is still just LOG_DEBUG priority but it is logged unconditionally because it is somewhat extraordinary condition to have an user with blank password. * modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Replace D() macro calls which are not enabled on production builds with regular pam_syslog() calls.
* pam_unix: Fix the spelling of Jan Rękorajski's name.Tomas Mraz2019-10-101-1/+1
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* pam_unix: Add support for (gost-)yescrypt hashing methods.Björn Esser2018-11-231-2/+2
| | | | | | | | | | | | | | | libxcrypt (v4.2 and later) has added support for the yescrypt hashing method; gost-yescrypt has been added in v4.3. * modules/pam_unix/pam_unix.8.xml: Documentation for (gost-)yescrypt. * modules/pam_unix/pam_unix_acct.c: Use 64 bit type for control flags. * modules/pam_unix/pam_unix_auth.c: Likewise. * modules/pam_unix/pam_unix_passwd.c: Likewise. * modules/pam_unix/pam_unix_sess.c: Likewise. * modules/pam_unix/passverify.c: Add support for (gost-)yescrypt. * modules/pam_unix/passverify.h: Use 64 bit type for control flags. * modules/pam_unix/support.c: Set sane rounds for (gost-)yescrypt. * modules/pam_unix/support.h: Add support for (gost-)yescrypt.
* pam_unix: remove obsolete _UNIX_AUTHTOK, _UNIX_OLD_AUTHTOK, and ↵Dmitry V. Levin2018-05-311-2/+0
| | | | | | | | | | | | | | _UNIX_NEW_AUTHTOK macros The last use of these macros was removed by commit Linux-PAM-1.3.0~5 so their definitions should go as well. * modules/pam_unix/pam_unix_auth.c (_UNIX_AUTHTOK): Remove. * modules/pam_unix/pam_unix_passwd.c (_UNIX_OLD_AUTHTOK, _UNIX_NEW_AUTHTOK): Likewise. Complements: 7e09188c5dc4 ("pam_unix: Use pam_get_authtok() instead of direct pam_prompt() calls.")
* pam_unix: Check return value of malloc used for setcred data (#24)Peter Urbanec2017-07-121-8/+12
| | | | | | | | Check the return value of malloc and if it failed print debug info, send a syslog message and return an error code. The test in AUTH_RETURN for ret_data not being NULL becomes redundant. Signed-off-by: Peter Urbanec <git.user@urbanec.net>
* pam_unix: Use pam_get_authtok() instead of direct pam_prompt() calls.Tomas Mraz2016-04-061-3/+2
| | | | | | | | | | | | | | | | We have to drop support for not_set_pass option which is not much useful anyway. Instead we get proper support for authtok_type option. * modules/pam_unix/pam_unix.8.xml: Removed not_set_pass option, added authtok_ty pe option. * modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Replace _unix_read_pas sword() call with equivalent pam_get_authtok() call. * modules/pam_unix/pam_unix_passwd.c (pam_sm_chauthtok): Likewise and also drop support for not_set_pass. * modules/pam_unix/support.c (_unix_read_password): Remove. * modules/pam_unix/support.h: Remove UNIX_NOT_SET_PASS add UNIX_AUTHTOK_TYPE.
* Remove "--enable-static-modules" option and support fromThorsten Kukuk2016-03-291-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux-PAM. It was never official supported and was broken since years. * configure.ac: Remove --enable-static-modules option. * doc/man/pam_sm_acct_mgmt.3.xml: Remove PAM_EXTERN. * doc/man/pam_sm_authenticate.3.xml: Likewise. * doc/man/pam_sm_chauthtok.3.xml: Likewise. * doc/man/pam_sm_close_session.3.xml: Likewise. * doc/man/pam_sm_open_session.3.xml: Likewise. * doc/man/pam_sm_setcred.3.xml: Likewise. * libpam/Makefile.am: Remove STATIC_MODULES cases. * libpam/include/security/pam_modules.h: Remove PAM_STATIC parts. * libpam/pam_dynamic.c: Likewise. * libpam/pam_handlers.c: Likewise. * libpam/pam_private.h: Likewise. * libpam/pam_static.c: Remove file. * libpam/pam_static_modules.h: Remove header file. * modules/pam_access/pam_access.c: Remove PAM_EXTERN and PAM_STATIC parts. * modules/pam_cracklib/pam_cracklib.c: Likewise. * modules/pam_debug/pam_debug.c: Likewise. * modules/pam_deny/pam_deny.c: Likewise. * modules/pam_echo/pam_echo.c: Likewise. * modules/pam_env/pam_env.c: Likewise. * modules/pam_exec/pam_exec.c: Likewise. * modules/pam_faildelay/pam_faildelay.c: Likewise. * modules/pam_filter/pam_filter.c: Likewise. * modules/pam_ftp/pam_ftp.c: Likewise. * modules/pam_group/pam_group.c: Likewise. * modules/pam_issue/pam_issue.c: Likewise. * modules/pam_keyinit/pam_keyinit.c: Likewise. * modules/pam_lastlog/pam_lastlog.c: Likewise. * modules/pam_limits/pam_limits.c: Likewise. * modules/pam_listfile/pam_listfile.c: Likewise. * modules/pam_localuser/pam_localuser.c: Likewise. * modules/pam_loginuid/pam_loginuid.c: Likewise. * modules/pam_mail/pam_mail.c: Likewise. * modules/pam_mkhomedir/pam_mkhomedir.c: Likewise. * modules/pam_motd/pam_motd.c: Likewise. * modules/pam_namespace/pam_namespace.c: Likewise. * modules/pam_nologin/pam_nologin.c: Likewise. * modules/pam_permit/pam_permit.c: Likewise. * modules/pam_pwhistory/pam_pwhistory.c: Likewise. * modules/pam_rhosts/pam_rhosts.c: Likewise. * modules/pam_rootok/pam_rootok.c: Likewise. * modules/pam_securetty/pam_securetty.c: Likewise. * modules/pam_selinux/pam_selinux.c: Likewise. * modules/pam_sepermit/pam_sepermit.c: Likewise. * modules/pam_shells/pam_shells.c: Likewise. * modules/pam_stress/pam_stress.c: Likewise. * modules/pam_succeed_if/pam_succeed_if.c: Likewise. * modules/pam_tally/pam_tally.c: Likewise. * modules/pam_tally2/pam_tally2.c: Likewise. * modules/pam_time/pam_time.c: Likewise. * modules/pam_timestamp/pam_timestamp.c: Likewise. * modules/pam_tty_audit/pam_tty_audit.c: Likewise. * modules/pam_umask/pam_umask.c: Likewise. * modules/pam_userdb/pam_userdb.c: Likewise. * modules/pam_warn/pam_warn.c: Likewise. * modules/pam_wheel/pam_wheel.c: Likewise. * modules/pam_xauth/pam_xauth.c: Likewise. * modules/pam_unix/Makefile.am: Remove STATIC_MODULES part. * modules/pam_unix/pam_unix_acct.c: Remove PAM_STATIC part. * modules/pam_unix/pam_unix_auth.c: Likewise. * modules/pam_unix/pam_unix_passwd.c: Likewise. * modules/pam_unix/pam_unix_sess.c: Likewise. * modules/pam_unix/pam_unix_static.c: Removed. * modules/pam_unix/pam_unix_static.h: Removed. * po/POTFILES.in: Remove removed files. * tests/tst-dlopen.c: Remove PAM_STATIC part.
* pam_unix: Add no_pass_expiry option to ignore password expiration.Tomas Mraz2016-02-171-9/+11
| | | | | | | | | | | | * modules/pam_unix/pam_unix.8.xml: Document the no_pass_expiry option. * modules/pam_unix/pam_unix_acct.c (pam_sm_acct_mgmt): If no_pass_expiry is on and return value data is not set to PAM_SUCCESS then ignore PAM_NEW_AUTHTOK_REQD and PAM_AUTHTOK_EXPIRED returns. * modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Always set the return value data. (pam_sm_setcred): Test for likeauth option and use the return value data only if set. * modules/pam_unix/support.h: Add the no_pass_expiry option.
* pam_unix: make configuration consistent in --enable-static-modules modeDmitry V. Levin2012-02-031-17/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In --enable-static-modules mode, it was not possible to use "pam_unix" in PAM config files. Instead, different names had to be used for each management group: pam_unix_auth, pam_unix_acct, pam_unix_passwd and pam_unix_session. This change makes pam_unix configuration consistent with other PAM modules. * README: Remove the paragraph describing pam_unix distinctions in --enable-static-modules mode. * libpam/pam_static_modules.h (_pam_unix_acct_modstruct, _pam_unix_auth_modstruct, _pam_unix_passwd_modstruct, _pam_unix_session_modstruct): Remove. (_pam_unix_modstruct): New pam_module declaration. * modules/pam_unix/pam_unix_static.h: New file. * modules/pam_unix/pam_unix_static.c: Likewise. * modules/pam_unix/Makefile.am (noinst_HEADERS): Add pam_unix_static.h (pam_unix_la_SOURCES) [STATIC_MODULES]: Add pam_unix_static.c * modules/pam_unix/pam_unix_acct.c [PAM_STATIC]: Include pam_unix_static.h [PAM_STATIC] (_pam_unix_acct_modstruct): Remove. * modules/pam_unix/pam_unix_auth.c [PAM_STATIC]: Include pam_unix_static.h [PAM_STATIC] (_pam_unix_auth_modstruct): Remove. * modules/pam_unix/pam_unix_passwd.c [PAM_STATIC]: Include pam_unix_static.h [PAM_STATIC] (_pam_unix_passwd_modstruct): Remove. * modules/pam_unix/pam_unix_sess.c [PAM_STATIC]: Include pam_unix_static.h [PAM_STATIC] (_pam_unix_session_modstruct): Remove. Suggested-by: Matveychikov Ilya <i.matveychikov@securitycode.ru>
* Fix whitespace issuesDmitry V. Levin2011-10-261-1/+1
| | | | | | Cleanup trailing whitespaces, indentation that uses spaces before tabs, and blank lines at EOF. Make the project free of warnings reported by git diff --check 4b825dc642cb6eb9a060e54bf8d69288fbee4904 HEAD
* Relevant BUGIDs:Thorsten Kukuk2010-08-171-1/+1
| | | | | | | | | | | | | | | | | | | | | Purpose of commit: new feature Commit summary: --------------- 2010-08-17 Thorsten Kukuk <kukuk@thkukuk.de> * modules/pam_unix/pam_unix_passwd.c: Implement minlen option. * modules/pam_unix/support.c: Likewise. * modules/pam_unix/support.h: Likewise. * modules/pam_unix/pam_unix_acct.c (pam_sm_acct_mgmt): Adjust arguments for _set_ctrl call. * modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Likewise. * modules/pam_unix/pam_unix_session.c: Likewise. * modules/pam_unix/pam_unix.8.xml: Document minlen option. Based on patch by Steve Langasek.
* Relevant BUGIDs: 2892529Thorsten Kukuk2009-12-081-2/+0
| | | | | | | | | | | | | | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- 2009-12-08 Thorsten Kukuk <kukuk@thkukuk.de> * configure.in: Rename DEBUG to PAM_DEBUG. * libpam/pam_env.c: Likewise * libpam/pam_handlers.c: Likewise * libpam/pam_miscc.c: Likewise * libpam/pam_password.c: Likewise * libpam/include/security/_pam_macros.h: Likewise * libpamc/test/modules/pam_secret.c: Likewise * modules/pam_group/pam_group.c: Likewise * modules/pam_listfile/pam_listfile.c: Likewise * modules/pam_unix/pam_unix_auth.c: Likewise * modules/pam_unix/pam_unix_passwd.c: Likewise
* Relevant BUGIDs:Tomas Mraz2008-11-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- 2008-11-24 Tomas Mraz <t8m@centrum.cz> * modules/pam_cracklib/pam_cracklib.c(pam_sm_chauthtok): Fix leaks in error path. * modules/pam_env/pam_env.c(_parse_env_file): Remove superfluous condition. * modules/pam_group/pam_group.c(check_account): Fix leak in error path. * modules/pam_listfile/pam_listfile.c(pam_sm_authenticate): Fix leak in error path. * modules/pam_securetty/pam_securetty.c(securetty_perform_check): Remove superfluous condition. * modules/pam_stress/pam_stress.c(stress_get_password,pam_sm_authenticate): Remove superfluous conditions. (pam_sm_chauthtok): Fix mistaken && for &. * modules/pam_unix/pam_unix_auth.c(pam_sm_authenticate): Remove superfluous condition. All the problems fixed in this commit were found by Steve Grubb.
* Relevant BUGIDs:Tomas Mraz2008-01-231-1/+1
| | | | | | | | | | Purpose of commit: cleanup, new feature Commit summary: --------------- Merging the the refactorization pam_unix_ref branch into the trunk. Added support for sha256 and sha512 password hashes to pam_unix when the libcrypt supports them.
* Relevant BUGIDs:Thorsten Kukuk2006-12-201-4/+3
| | | | | | | | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- Don't be more restrictive than useradd for account names: 2006-12-20 Thorsten Kukuk <kukuk@thkukuk.de> * modules/pam_unix/pam_unix_passwd.c (pam_sm_chauthtok): Forbid only '+' and '-' as first characters for account names. * modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): Likewise.
* Relevant BUGIDs:Tomas Mraz2005-09-261-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Purpose of commit: cleanup Commit summary: --------------- 2005-09-26 Tomas Mraz <t8m@centrum.cz> * modules/pam_unix/pam_unix_acct.c (_unix_run_verify_binary): _log_err() -> pam_syslog() (pam_sm_acct_mgmt): _log_err() -> pam_syslog(), fix warning. * modules/pam_unix/pam_unix_auth.c (pam_sm_authenticate): _log_err() -> pam_syslog() * modules/pam_unix/pam_unix_passwd.c: removed obsolete ifdef (getNISserver, _unix_run_shadow_binary, _update_passwd, _update_shadow, _do_setpass, _pam_unix_approve_pass, pam_sm_chauthtok): _log_err() -> pam_syslog() * modules/pam_unix/pam_unix_sess.c: removed obsolete ifdef (pam_sm_open_session, pam_sm_close_session): _log_err() -> pam_syslog() * modules/pam_unix/support.c (_log_err, converse): removed (_make_remark): use pam_prompt() instead of converse() (_set_ctrl, _cleanup_failures, _unix_run_helper_binary, _unix_verify_password, _unix_read_password): _log_err() -> pam_syslog() _cleanup(), _unix_cleanup(): Silence unused param warnings. (_cleanup_failures, _unix_verify_password, _unix_getpwnam, _unix_run_helper_binary): Silence incorrect type warnings. (_unix_read_password): Use multiple pam_prompt() and pam_info() calls instead of converse(). * modules/pam_unix/support.h (_log_err): removed * modules/pam_unix/unix_chkpwd.c (_log_err): LOG_AUTH -> LOG_AUTHPRIV
* Relevant BUGIDs: noneThorsten Kukuk2005-08-291-0/+1
| | | | | | | | | Purpose of commit: cleanup Commit summary: --------------- cleanup the header files, don't include allways all other header files.
* Relevant BUGIDs: noneThorsten Kukuk2005-08-261-1/+1
| | | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- Mark missing strings for translations (login and password) Fix \a problem with pot/po files
* Relevant BUGIDs: noneThorsten Kukuk2005-08-161-3/+5
| | | | | | | | | Purpose of commit: new feature Commit summary: --------------- Big "automake/autoconf/libtool" commit
* Relevant BUGIDs: mailing listThorsten Kukuk2005-07-261-2/+2
| | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- Don't ignore return values of pam_get_item
* Relevant BUGIDs: noneThorsten Kukuk2005-07-201-1/+1
| | | | | | | | | Purpose of commit: cleanup Commit summary: --------------- Rename _pam_aconf.h to config.h.
* Relevant BUGIDs: noneThorsten Kukuk2005-06-091-4/+5
| | | | | | | | | | Purpose of commit: cleanup Commit summary: --------------- Fix all occurrence of dereferencing type-punned pointer will break strict-aliasing rules warnings
* Relevant BUGIDs:Thorsten Kukuk2004-09-241-1/+1
| | | | | | | | | | Purpose of commit: Commit summary: --------------- bugfix: 440107: Add various patches from Linux Distibutors to make PAM modules reentrant.
* Relevant BUGIDs:Thorsten Kukuk2004-09-221-5/+6
| | | | | | | | | Purpose of commit: Commit summary: --------------- bugfix: Add rest of Steve Grubb's resource leak and other fixes
* Relevant BUGIDs: 486361Andrew G. Morgan2001-12-091-1/+1
| | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- pam_unix is too generic a module to override the PAM_USER_PROMPT item. (More modifications to xsh to help me test this change.)
* Relevant BUGIDs: 483959Steve Langasek2001-11-301-3/+10
| | | | | | | | Purpose of commit: bugfix Commit summary: --------------- pam_unix: fix 'likeauth' to kill off the memory leak once and for all.
* Relevant BUGIDs: 483959, 113596Steve Langasek2001-11-271-26/+27
| | | | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- * Restore pam_unix's handling of 'likeauth' argument to a known working state * prettify AUTH_RETURN macro * remove redundant argv checks in pam_sm_setcred()
* Relevant BUGIDs: 483959Andrew G. Morgan2001-11-271-6/+2
| | | | | | | | | Purpose of commit: fix memory leak Commit summary: --------------- Fernando Trias pointed out a silly memory leak in pam_unix.so. It looks like some allocated memory that is simply not needed for anything.
* Relevant BUGIDs: 126431, 126423Steve Langasek2000-12-201-4/+4
| | | | | | | | | | | | Purpose of commit: new feature / bugfix Commit summary: --------------- This changes the format of pam_unix log messages, per bug 126423. The change is extensive (every call to _log_err() now has an additional argument) but straightforward. These changes to the logging code incidentally fix the problem reported in bug 126431.
* Relevant BUGIDs: task 15788, bugs 108297, 117476, 117474Andrew G. Morgan2000-11-191-4/+1
| | | | | | | | | | | | | | Purpose of commit: autoconf support for Linux-PAM Commit summary: --------------- This is a merge of the autoconf support that was developed against a 0-72 branch. [Note, because CVS has some issues, this is actually only 95% of the actual commit. The other files were actually committed when the preparation branch Linux-PAM-0-73pre-autoconf was updated. Hopefully, this will complete the merge.]
* Relevant BUGIDs: 113596Andrew G. Morgan2000-09-051-4/+2
| | | | | | | | | Purpose of commit: bugfix Commit summary: --------------- The "likeauth" module argument did not work for pam_pwdb and pam_unix. This commit fixes it.
* Relevant BUGIDs: 111035Steve Langasek2000-08-031-5/+14
| | | | | | | | | | | Purpose of commit: bugfix to pam_unix_auth Commit summary: --------------- Fix for 'likeauth' handling in the pam_unix_auth module. If pam_setcred needs to return the same value as returned by pam_authenticate, malloc() space for this return value and pass its address to pam_set_data(). Also, changes pam_sm_setcred() so that it reads this value properly.
* Initial revisionAndrew G. Morgan2000-06-201-0/+220
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