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* pam_shells: return PAM_USER_UNKNOWN if getpwnam failsHEADmasterJonathan Krebs2023-05-172-2/+18
| | | | | | Until before, in this case PAM_AUTH_ERR was returned. This leads to unknown users being logged with the unknown username. Now it resembles the behaviour of other modules like pam_unix in this case.
* pam_xauth: switch away from PATH_MAXPino Toscano2023-05-171-10/+18
| | | | | | | | Allocate the path buffer in check_acl() dynamically using asprintf(), so there is no need to use a PATH_MAX-fixed size buffer. The fallback PATH_MAX definition is no more needed, thus is dropped. Make sure that paths too long still result in PAM_SESSION_ERR.
* pam_mkhomedir: simplify handling of newsource/newdestPino Toscano2023-05-121-85/+32
| | | | | | | | | | | | | | | | | To support OSes without PATH_MAX (which is optional in POSIX), there are two code paths for the 'newsource' and 'newdest' variables: one using a PATH_MAX-sized stack buffer, and one using heap allocation. The second is even more complicated than needed, doing manual calculations and allocations. To simplify the code a bit more, easing its maintenance, unify the two using asprintf() to allocate 'newsource' and 'newdest': the extra allocation needed should not be an issue, since this code runs in a separate helper executable. As additional change for this simplification, remove the reset to the two variables to NULL right after their free(), which is not needed since their scopes end.
* pam_limits: build again on non-Linux OSesPino Toscano2023-05-121-0/+8
| | | | | | | | | | Even if this module is supported officially on Linux, make sure it can still build fine on non-Linux OSes, to ease its testing/fixing a bit: - build parse_kernel_limits() and stuff needed for it only on Linux, as it is called already only on Linux - limit the code needed to apply the 'nonewprivs' options to Linux only, as it uses a Linux-specific way to set it; add a syslog message for other OSes
* examples/tty_conv: fix build on muslViolet Purcell2023-05-121-2/+3
| | | | | | termio.h is the old System V version of the interface header, and is only provided in glibc and dietlibc as far as I can tell. This fixes it to use the POSIX termios.h instead.
* po: update translations using Weblate (Korean)ldv/next김인수2023-05-111-1/+1
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/ko/
* po: update translations using Weblate (Hungarian)Dankaházi (ifj.) István2023-05-111-1/+1
| | | | | | Currently translated at 76.2% (77 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/hu/
* configure.ac: add --enable-examples optionPino Toscano2023-05-112-1/+9
| | | | | | | | Allow the user to not build the examples through --disable-examples (enabled by default); this can be useful: - when cross-compiling, as the examples are not useful - in distribution builds, not building stuff that is not used in any way
* pam_nologin: explicitly fail when nologin path is a directoryPino Toscano2023-05-111-0/+10
| | | | | | | On some systems (e.g. GNU/Hurd), read() succeeds on the fd of a directory; since the module assumes that read() fails (and thus pam_modutil_read() as well), manually fail in case the open fd refers to a directory.
* pam_timestamp: do not assume PATH_MAX is definedPino Toscano2023-05-111-1/+3
| | | | | PATH_MAX is optional in POSIX, and not defined on GNU/Hurd; hence, in case it is not defined, define BUFLEN directly to LINE_MAX.
* pam_pwhistory: switch away from PATH_MAXPino Toscano2023-05-111-11/+29
| | | | | Allocate the buffers dynamically using asprintf(), so there is no need to use PATH_MAX-fixed size buffers.
* tests: define PATH_MAX if not availablePino Toscano2023-05-112-0/+9
| | | | | | PATH_MAX is optional in POSIX, and not defined on GNU/Hurd; since these sources are tests, it is fine to hardcoded a fallback value that allows the tests to build and run.
* modules: update Linux detectionv1.5.3Christian Göttsche2023-05-072-2/+2
| | | | | | | | GCC and Clang only define the macro `linux` when using the GNU dialect of C (e.g. -std=gnu11 instead of -std=c11). Since `linux` is also not in a reserved namespace it might be target of collisions. Use the canonical macro `__linux__` instead (already used in pam_limits.c).
* po: update .pot and .po filesldv/prepare-for-releaseDmitry V. Levin2023-04-2983-2458/+2458
| | | | | | Regenerate po/Linux-PAM.pot and po/*.po using "make -C po update-po" command. This essentially updates the project version, line numbers, and timestamps.
* Prepare for 1.5.3 releaseDmitry V. Levin2023-04-292-1/+25
| | | | | * configure.ac (AC_INIT): Raise version to 1.5.3. * NEWS: Update.
* po: update translations using Weblate (Romanian)Remus-Gabriel Chelu2023-04-231-55/+57
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/ro/
* po: update translations using Weblate (Korean)김인수2023-04-231-27/+27
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/ko/
* pam_succeed_if: do not use the result of keyword substitution for keyword matchldv/pam_succeed_ifDmitry V. Levin2023-04-201-22/+14
| | | | | | | * modules/pam_succeed_if/pam_succeed_if.c (evaluate): Do not use the result of keyword substitution for keyword match. Resolves: https://github.com/linux-pam/linux-pam/issues/560
* ci: add --enable-openssl jobs to the ci matrixDmitry V. Levin2023-04-202-0/+36
| | | | Link: https://github.com/linux-pam/linux-pam/pull/550#issuecomment-1490362439
* build: fix --enable-opensslStefan Schubert2023-04-202-11/+15
| | | | | | | * Make.xml.rules.in: Avoid conflicting profile.condition settings. * configure.ac: Likewise. Resolves: https://github.com/linux-pam/linux-pam/issues/553
* pam_timestamp: Only build hmacfile when no opensslIker Pedrosa2023-04-201-5/+2
| | | | | | | * modules/pam_timestamp/Makefile.am: Only build hmacfile target when openssl isn't enabled. Signed-off-by: Iker Pedrosa <ipedrosa@redhat.com>
* man: clarify PAM_DATA_SILENT in pam_set_data.3Luca Boccassi2023-04-201-1/+7
| | | | | | pam_end.3 has additional and important information about PAM_DATA_SILENT, copy it to pam_set_data.3 since that describes the cleanup callback where it will be set.
* fix a grammar mistakeMark Huang2023-04-201-1/+1
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* configure: Disable NIS if header files are missingThorsten Kukuk2023-04-063-11/+11
| | | | | | configure.ac: Disable NIS if RPC or YP header files are missing modules/pam_unix/support.c: Use HAVE_NIS to check for header file presence modules/pam_unix/pam_unix_passwd.c: Use HAVE_NIS, too
* doc: Include custom-html.xsl.in and custom-man.xsl.inThorsten Kukuk2023-04-041-1/+1
| | | | | doc/Makefile.am: Replace custom-html.xsl and custom-man.xsl with custom-html.xsl.in and custom-man.xsl.in EXTRA_DIST
* treewide: fix unnecessary $ on arithmetic variablesldv/shellcheckDmitry V. Levin2023-03-312-2/+2
| | | | This should fix shellcheck warning SC2004.
* pgp.keys.asc: updateldv/gpg-keyDmitry V. Levin2023-03-301-150/+134
| | | | | | * pgp.keys.asc: Replace with the key used to sign v1.5.2. Resolves: https://github.com/linux-pam/linux-pam/issues/544
* pam_timestamp: fix build failureIker Pedrosa2023-03-301-0/+1
| | | | | | | | | | bcba17939e1b1a568cd4a764534cde74d37078cc started using pam_overwrite_n() without providing the definition to this function, which causes a build failure. modules/pam_timestamp/hmac_openssl_wrapper.c: include pam_inline.h Signed-off-by: Iker Pedrosa <ipedrosa@redhat.com>
* po: update translations using Weblate (Punjabi)A S Alam2023-03-141-11/+12
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/pa/
* manual pages: document usage of $DISPLAY and PAM_TTYThorsten Kukuk2023-03-141-5/+7
| | | | | | man/pam_item_types_std.inc.xml: In the past, PAM_TTY was used for tty devices and $DISPLAY variables for X-based applications. With the introduction of PAM_DISPLAY PAM_TTY should only be used for devices.
* libpam: simplify string copying using strdupChristian Göttsche2023-03-041-5/+1
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* modules: make use of secure memory erasureChristian Göttsche2023-02-2828-96/+140
| | | | | | | | | | | | | | | | | | | | | | | | | | Use empty initialization of structs to minimize the memset() usage, to reduce the amount of calls which are not sensitive. Non trivial changes: - pam_env: * erase environment variables where possible - pam_exec: * erase responce on error * erase auth token - pam_pwhistory: * erase buffers containing old passwords - pam_selinux: skip overwriting data structure consisting of only pointers to insensitive data, which also gets free'd afterwards (so it currently does not protect against double-free or use-after-free on the member pointers) - pam_unix: erase cipher data in more places - pam_userdb: erase password hashes
* libpamc: make use of secure memory erasureChristian Göttsche2023-02-283-5/+8
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* libpam_misc: make use of secure memory erasureChristian Göttsche2023-02-282-6/+8
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* libpam: make use of secure memory erasureChristian Göttsche2023-02-287-41/+48
| | | | | | Non trivial changes: - erase responses in pam_get_authtok_internal() on error branch
* libpam: introduce secure memory erasure helpersChristian Göttsche2023-02-284-10/+85
| | | | | | | | | | Avoid compiler optimizations to elide the memory erasure by using a secure method: either memset_explicit() [C23], bzero_explicit() [glibc 2.25] or a manual memory barrier. Since the current helpers _pam_overwrite*() and _pam_drop_reply() are publicly exported, create new ones in "pam_inline.h" and deprecate the old ones.
* pam_env: use helper to free string listChristian Göttsche2023-02-281-2/+1
| | | | | | Free the environment variables list via the designated helper free_string_array() rather than free its elements in a loop, which might skip some.
* pam_env: override undefined pointer after asprintf failureChristian Göttsche2023-02-281-0/+1
| | | | | On failure the content of the string pointer passed to asprintf(3) is undefined. Set to NULL before free'ing the parent array.
* Y2038: use logind instead of utmpThorsten Kukuk2023-02-285-9/+78
| | | | | | | | | | | | | The struct utmp from glibc uses on many 64bit architectures a 32bit time_t for compatibility with a 32bit userland, which means utmp will not survive the year 2038 (32bit time_t overflow). Use the data from logind instead of utmp. * configure.ac: Add option --enable-logind * modules/pam_issue/Makefile.am: Add CFLAGS/LIBS for logind support * modules/pam_issue/pam_issue.c: Use sd_get_sessions instead of utmp * modules/pam_timestamp/Makefile.am: Add CFLAGS/LIBS for logind support * modules/pam_timestamp/pam_timestamp.c: query logind for login time
* po: update translations using Weblate (Slovenian)Martin Srebotnjak2023-02-201-25/+24
| | | | | | Currently translated at 16.8% (17 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/sl/
* po: update translations using Weblate (Hebrew)Yaron Shahrabani2023-02-201-8/+8
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/he/
* manual pages: enhance pam.d documentationThorsten Kukuk2023-02-174-19/+73
| | | | | | | | | | Make /usr/lib/pam.d and <vendordir>/pam.d more visible in the standard manual pages, so that people don't assume there is only /etc/pam.d * doc/man/pam.8.xml: Don't always speak about /etc/pam.d only * doc/man/pam.conf-desc.xml: Don't always speak about /etc/pam.d only * doc/man/pam.conf-dir.xml: Explain search path for pam config files * doc/man/pam.conf.5.xml: Add filelist with all pam.d directories
* pam_lastlog: deprecate it and disable by defaultThorsten Kukuk2023-02-152-5/+16
| | | | | | | | | | | | pam_lastlog uses utmp, wtmp, btmp and lastlog. None of them is Y2038 safe, even on 64bit architectures. Most 64bit architectures use 32bit time_t for compat reasons with 32bit userland. Additionally, all relevant tools for which pam_lastlog would make sense already have their own support for all four files, so this module will most likely only create duplicate entries. * configure.ac: don't build pam_lastlog by default. * ci/run-build-and-tests.sh: enable pam_lastlog.
* libpam: use getlogin() from libc and not utmpThorsten Kukuk2023-02-141-41/+11
| | | | | | | | | utmp uses 32bit time_t for compatibility with 32bit userland on some 64bit systems and is thus not Y2038 safe. Use getlogin() from libc which avoids using utmp and is more safe than the old utmp-based implementation by using /proc/self/loginuid. * libpam/pam_modutil_getlogin.c: Use getlogin() instead of parsing utmp
* po: update translations using Weblate (Czech)Josef Hruska2023-02-071-13/+13
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/cs/
* po: update translations using Weblate (Korean)Seong-ho Cho2023-02-071-44/+44
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/ko/
* po: update translations using Weblate (Croatian)Gogo Gogsi2023-02-071-12/+11
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/hr/
* po: update translations using Weblate (Kazakh)Baurzhan Muftakhidinov2023-02-071-12/+11
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/kk/
* po: update translations using Weblate (German)Ettore Atalan2023-02-071-12/+12
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/de/
* po: update translations using Weblate (Swedish)Luna Jernberg2023-02-071-11/+11
| | | | | | Currently translated at 100.0% (101 of 101 strings). Translate-URL: https://translate.fedoraproject.org/projects/linux-pam/master/sv/
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