Commit Graph

44 Commits

Author SHA1 Message Date
085d04c3dd add new HOME_MODE login.defs(5) option
This option can be used to set a separate mode for useradd(8) and
newusers(8) to create the home directories with.
If this option is not set, the current behavior of using UMASK
or the default umask is preserved.

There are many distributions that set UMASK to 077 by default just
to create home directories not readable by others and use things like
/etc/profile, bashrc or sudo configuration files to set a less
restrictive
umask. This has always resulted in bug reports because it is hard
to follow as users tend to change files like bashrc and are not about
setting the umask to counteract the umask set in /etc/login.defs.

A recent change in sudo has also resulted in many bug reports about
this. sudo now tries to respect the umask set by pam modules and on
systems where pam does not set a umask, the login.defs UMASK value is
used.
2020-01-12 16:18:32 +01:00
93f1f35123 Revert "add new HOME_MODE login.defs(5) option"
Missing file

This reverts commit a847899b52.
2020-01-12 07:56:19 -06:00
a847899b52 add new HOME_MODE login.defs(5) option
This option can be used to set a separate mode for useradd(8) and
newusers(8) to create the home directories with.
If this option is not set, the current behavior of using UMASK
or the default umask is preserved.

There are many distributions that set UMASK to 077 by default just
to create home directories not readable by others and use things like
/etc/profile, bashrc or sudo configuration files to set a less
restrictive
umask. This has always resulted in bug reports because it is hard
to follow as users tend to change files like bashrc and are not about
setting the umask to counteract the umask set in /etc/login.defs.

A recent change in sudo has also resulted in many bug reports about
this. sudo now tries to respect the umask set by pam modules and on
systems where pam does not set a umask, the login.defs UMASK value is
used.
2020-01-11 22:27:39 +01:00
2958bd050b Initial bcrypt support 2019-12-01 11:00:57 -06:00
b52ce71c27 Add support for a vendor directory and libeconf
With this, it is possible for Linux distributors to store their
supplied default configuration files somewhere below /usr, while
/etc only contains the changes made by the user. The new option
--enable-vendordir defines where the shadow suite should additional
look for login.defs if this file is not in /etc.
libeconf is a key/value configuration file reading library, which
handles the split of configuration files in different locations
and merges them transparently for the application.
2019-10-05 22:17:49 -05:00
4633164857 login.defs: Add LASTLOG_UID_MAX variable to limit lastlog to small uids.
As the large uids are usually provided by remote user identity and
authentication service, which also provide user login tracking,
there is no need to create a huge sparse file for them on every local
machine.

fixup! login.defs: Add LASTLOG_UID_MAX variable to limit lastlog to small uids.
2018-12-10 13:25:56 -06:00
b6b2c756c9 add --prefix option 2017-03-01 22:51:09 +01:00
c33ceddc26 Don't crash on bogus keys in login.defs if PAM is enabled
Without this patch, PAM enabled builds crash when encountering an
invalid key in login.defs or key overrides because of array overflows

To reproduce, simply
	useradd -K Windows=broken

Signed-off-by: Bernhard Rosenkränzer <bero@lindev.ch>
Signed-off-by: Serge Hallyn <serge@hallyn.com>
2017-01-29 14:47:24 -06:00
46a72bc342 Force use shadow, even if missing. 2015-02-27 17:01:30 +00:00
71c6165dcd Do not report unknown settings, when compiled with PAM.
When compiled with PAM certain settings are not used, however they are
still defined in the stock login.defs file. Thus every command reports
them as "unknown setting contact administrator".

Alternative would be to parse stock login.defs and comment out/remove
settings that are not applied, when compiled with PAM.
2015-02-27 17:01:28 +00:00
51c1fc93e3 Do not bail out on missing login.defs.
For most operations tools have compiled-in defaults, and thus can
operate without login.defs present.
2015-02-27 17:01:27 +00:00
f28ad4b251 Add backend support for suboridnate uids and gids
These files list the set of subordinate uids and gids that users are allowed
to use.   The expect use case is with the user namespace but other uses are
allowed.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-08-05 10:08:45 -05:00
391a384715 2010-01-30 Paweł Hajdan, Jr. <phajdan.jr@gentoo.org>
* NEWS: Add support for TCB.
	* lib/tcbfuncs.h, lib/tcbfuncs.c, lib/Makefile.am: New library to
	support TCB.
	* lib/prototypes, libmisc/copydir.c (remove_tree): Add boolean
	parameter remove_root.
	* configure.in: Add conditional WITH_TCB.
	* src/userdel.c, src/usermod.c: Add support for TCB. Update call to
	remove_tree().
	* src/pwconv.c, src/pwunconv.c: Should not be used with TCB enabled.
	* src/vipw.c: Add support for TCB. Update call to remove_tree().
	* src/useradd.c: Add support for TCB. Open the shadow file outside
	of open_files().
	* src/chage.c: Add support for TCB.
	* src/Makefile.am: Install passwd sgid shadow when TCB is enabled.
	* lib/getdefs.c, man/vipw.8.xml, man/login.defs.5.xml,
	man/login.defs/TCB_AUTH_GROUP.xml, man/login.defs/USE_TCB.xml,
	man/login.defs/TCB_SYMLINKS.xml, man/generate_mans.mak,
	man/generate_mans.deps, man/Makefile.am: New configuration
	parameters: TCB_AUTH_GROUP, TCB_SYMLINKS, USE_TCB.
	* lib/shadowio.c, lib/commonio.c: Add support for TCB.
2010-03-04 18:11:13 +00:00
43033b65ad * lib/getdef.c: Added splint annotations.
* lib/getdef.c: Ignore fputs() return value.
	* lib/getdef.c: Use EXIT_FAILURE / EXIT_SUCCESS for exit()
2009-04-23 11:46:46 +00:00
84f5ca951c * lib/getdef.c: Use getlong instead of strtol/strtoul.
* libmisc/getlong, lib/getlong.c, libmisc/Makefile.am,
	lib/Makefile.am: getlong.c moved from libmisc/ to lib/.
2009-04-10 22:35:26 +00:00
5df1f2f683 * libmisc/setugid.c, src/login_nopam.c, src/suauth.c,
lib/getdef.c: Replace the %m format string by strerror(). This
	avoids errno to be reset between the system call error and the
	report function.
2008-09-13 18:03:50 +00:00
4ac21ca652 * lib/getdef.c: Fix the getdef_ulong() prototype.
* lib/getdef.h: Fix the getdef_ulong() prototype.
2008-06-14 21:09:33 +00:00
c9679b7954 * lib/getdef.h, lib/getdef.c: Add getdef_ulong().
* lib/getdef.c: Added TODOs because of lack of error checking.
	* lib/getdef.c: The size argument of fgets is an int, not a
	size_t.
	* lib/getdef.c: Avoid multi-statements lines.
2008-06-13 21:35:22 +00:00
712ed48a62 * lib/getdef.h, lib/getdef.c: getdef_bool returns a bool instead
of int.
	* lib/getdef.c: Change typo of def_loaded to bool.
	* lib/getdef.c: Add brackets.
	* lib/getdef.c: Avoid assignment in comparisons.
2008-05-25 21:43:05 +00:00
0d6b2221ab SHA_CRYPT_MAX_ROUNDS and SHA_CRYPT_MIN_ROUNDS can
only exist if configured with --with-sha-crypt.
2008-05-19 20:58:59 +00:00
c7302b61ef Make sure every source files are distributed with a copyright and license.
Files with no license use the default 3-clauses BSD license. The copyright
were mostly not recorded; they were updated according to the Changelog.
"Julianne Frances Haugh and contributors" changed to "copyright holders
and contributors".
2008-04-27 00:40:09 +00:00
77f722ae9d Added missing SYS_GID_MAX, SYS_GID_MIN, SYS_UID_MAX, and SYS_UID_MIN. 2008-02-25 21:06:30 +00:00
28a9441f4f Replace printf by puts for fixed strings. This would avoid issues caused
by formats introduced in translated strings.
2008-01-24 21:07:14 +00:00
e15fbb905c * NEWS, lib/getdef.c, man/login.defs.5.xml: New login.defs
variable: MAX_MEMBERS_PER_GROUP. Used for the split groups support.
* lib/commonio.c, lib/commonio.h: Add an open_hook and close_hook
  operation. They are called after the database is actually opened
  and parse, or before it is closed.
* lib/groupio.c: Add an open_hook to merge split groups, and an
  close group to split groups if MAX_MEMBERS_PER_GROUP is set.
  This fixes gpasswd and chgpasswd when split groups are used.
* lib/sgroupio.c, lib/shadowio.c, lib/pwio.c: No open or close
  hooks for these databases. (unsure about what should be the gshadow
  behavior for split groups)
2007-11-23 00:07:59 +00:00
0b695f5a76 * lib/prototypes.h, libmisc/salt.c: Add parameters to
crypt_make_salt to force the crypt method and number of rounds.
* libmisc/salt.c: Add parameter to SHA_salt_rounds to force the
  number of rounds.
* libmisc/salt.c, lib/getdef.c: ENCRYPT_METHOD and MD5_CRYPT_ENAB
  are needed also when USE_PAM (e.g. for chpasswd).
* src/newusers.c, src/gpasswd.c: Use the new crypt_make_salt prototype.
* src/chpasswd.c, src/chgpasswd.c: Add option -c, --crypt-method
  and -s, --sha-rounds to specify the crypt method and number of
  rounds in case of one of the SHA methods. The new prototype of
  crypt_make_salt simplifies the handling of -m, --md5.
2007-11-20 09:33:52 +00:00
e406b7fe4a * libmisc/salt.c: The salt has a random size (between 8 and 16
bytes).
* lib/getdef.c, etc/login.defs: Add definitions for
  SHA_CRYPT_MIN_ROUNDS and SHA_CRYPT_MAX_ROUNDS.
* libmisc/salt.c: Use SHA_CRYPT_MIN_ROUNDS and SHA_CRYPT_MAX_ROUNDS
  to add a random number of rounds if needed.
2007-11-20 00:05:54 +00:00
b8d8d0de00 Add support for SHA256 and SHA512 encrypt methods. Apply RedHat's patch
shadow-4.0.18.1-sha256.patch. Thanks to Peter Vrabec. Hardly no changes
except re-indent and changes related to recent modifications (max_salt_len
in crypt_make_salt). Changes in lib/defines.h not applied (definition of
ENCRYPTMETHOD_SELECT). I will add a configure check or flag.
2007-11-19 22:14:19 +00:00
b2120265fd Added the subversion svn:keywords property (Id) for proper identification. 2007-11-10 23:46:11 +00:00
8a78a8d68c [svn-upgrade] Integrating new upstream version, shadow (4.0.17) 2007-10-07 11:47:45 +00:00
0fa9083026 [svn-upgrade] Integrating new upstream version, shadow (4.0.16) 2007-10-07 11:47:33 +00:00
24178ad677 [svn-upgrade] Integrating new upstream version, shadow (4.0.14) 2007-10-07 11:47:11 +00:00
8451bed8b0 [svn-upgrade] Integrating new upstream version, shadow (4.0.13) 2007-10-07 11:47:01 +00:00
e89f3546f2 [svn-upgrade] Integrating new upstream version, shadow (4.0.12) 2007-10-07 11:46:52 +00:00
b48129fcbb [svn-upgrade] Integrating new upstream version, shadow (4.0.11) 2007-10-07 11:46:34 +00:00
8c50e06102 [svn-upgrade] Integrating new upstream version, shadow (4.0.10) 2007-10-07 11:46:25 +00:00
7c47e0fde3 [svn-upgrade] Integrating new upstream version, shadow (4.0.9) 2007-10-07 11:46:16 +00:00
8e167d28af [svn-upgrade] Integrating new upstream version, shadow (4.0.8) 2007-10-07 11:46:07 +00:00
0ee095abd8 [svn-upgrade] Integrating new upstream version, shadow (4.0.7) 2007-10-07 11:45:58 +00:00
b0e078d9c8 [svn-upgrade] Integrating new upstream version, shadow (4.0.5) 2007-10-07 11:45:40 +00:00
effd479bff [svn-upgrade] Integrating new upstream version, shadow (4.0.4) 2007-10-07 11:45:23 +00:00
9db6abfa42 [svn-upgrade] Integrating new upstream version, shadow (4.0.1) 2007-10-07 11:44:59 +00:00
efd7efa9f1 [svn-upgrade] Integrating new upstream version, shadow (20000826) 2007-10-07 11:44:14 +00:00
446e664caa [svn-upgrade] Integrating new upstream version, shadow (19990827) 2007-10-07 11:44:08 +00:00
45c6603cc8 [svn-upgrade] Integrating new upstream version, shadow (19990709) 2007-10-07 11:44:02 +00:00