Commit Graph

419 Commits

Author SHA1 Message Date
bfbd83239e Fix handling of boundaries.
* lib/subordinateio.c: Fix handling of boundaries.
	* libmisc/find_new_sub_uids.c: Likewise.
	* libmisc/find_new_sub_gids.c: Likewise.
2013-08-13 00:11:24 +02:00
d611d54ed4 Allow disabling of subordinate IDs.
* configure.in: Add configure options --enable-subordinate-ids /
	--disable-subordinate-ids. Enabled by default.
	* lib/prototypes.h: Include <config.h> before using its macros.
	* lib/commonio.h, lib/commonio.c: Define commonio_append only when
	ENABLE_SUBIDS is defined.
	* lib/prototypes.h, libmisc/find_new_sub_gids.c,
	libmisc/find_new_sub_uids.c: Likewise.
	* lib/subordinateio.h, lib/subordinateio.c: Likewise.
	* libmisc/user_busy.c: Only check if subordinate IDs are in use if
	ENABLE_SUBIDS is defined.
	* src/Makefile.am: Create newgidmap and newuidmap only if
	ENABLE_SUBIDS is defined.
	* src/newusers.c: Check for ENABLE_SUBIDS to enable support for
	subordinate IDs.
	* src/useradd.c: Likewise.
	* src/userdel.c: Likewise.
	* src/usermod.c: Likewise.
	* man/Makefile.am: Install man1/newgidmap.1, man1/newuidmap.1,
	man5/subgid.5, and man5/subuid.5 only if ENABLE_SUBIDS is defined.
	* man/fr/Makefile.am: Install man1/newgidmap.1, man1/newuidmap.1,
	man5/subgid.5, and man5/subuid.5 (not translated yet).
	* man/generate_mans.mak: Add xsltproc conditionals
	subids/no_subids.
	* man/login.defs.d/SUB_GID_COUNT.xml: Add dependency on subids
	condition.
	* man/login.defs.d/SUB_UID_COUNT.xml: Likewise.
	* man/usermod.8.xml: Document options for subordinate IDs and
	reference subgid(5) / subuid(5) depending on the subids condition.
2013-08-11 15:46:59 +02:00
14ebc92d8c Remove unused variable.
* libmisc/salt.c: Remove unused variable.
2013-08-10 00:11:52 +02:00
45986f8dc8 Fix for Alioth#314271 (musl libc)
* libmisc/utmp.c: Add include files needed for getaddrinfo().
	See Alioth#314271
2013-08-07 02:18:43 +02:00
316bc6b3f4 Fix wording: secondary -> subordinate.
* libmisc/find_new_sub_gids.c: Fix wording: secondary ->
	subordinate.
	* libmisc/find_new_sub_uids.c: Likewise.
2013-08-07 01:01:33 +02:00
ac53650da5 Remove duplicate check.
* libmisc/find_new_sub_gids.c: Remove duplicate check (duplicate
	at least in its intent).
2013-08-06 23:59:09 +02:00
c0ce911b5e userns: add argument sanity checking
In find_new_sub_{u,g}ids, check for min, count and max values.

In idmapping.c:get_map_ranges(), make sure that the value passed
in for ranges did not overflow.  Couldn't happen with the current
code, but this is a sanity check for any future potential mis-uses.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2013-08-05 10:08:46 -05:00
673c2a6f9a newuidmap,newgidmap: New suid helpers for using subordinate uids and gids
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2013-08-05 10:08:46 -05:00
89f7b0868c Add support for detecting busy subordinate user ids
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-08-05 10:08:45 -05:00
a8f26262cf Implement find_new_sub_uids find_new_sub_gids
Functions for finding new subordinate uid and gids ranges for use
with useradd.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-08-05 10:08:45 -05:00
60fc4bbf57 Debian bug 677275 - random() max value
* libmisc/salt.c: random() max value is 2^31-1 (same as RAND_MAX
	on GNU). As it is not clear whether on some systems the max value
	can exceed this number and whether some systems have max values
	which would be lower, we take this into account when defining the
	salt size and number of rounds for SHA encrypted passwords. Higher
	values are favored.
2013-08-05 14:19:23 +02:00
a168d046f3 Fix typo in comment. 2013-08-04 15:56:32 +02:00
ee1952424d Fix memory leak.
* libmisc/setupenv.c: Free pw_dir and pw_shell before reallocating
	them.
2013-08-02 20:28:24 +02:00
b6c1a8579e Fix segfaults
* libmisc/setupenv.c: xstrdup the static char* temp_pw_dir /
	temp_pw_shell. That way we can continue to use pw_free() without
	segving. Thanks to Serge Hallyn for the patch.
2013-08-02 20:24:20 +02:00
4e65be1211 use chdir() before calling chroot() 2013-07-29 11:05:16 +02:00
52a38d5509 crypt() in glibc/eglibc 2.17 now fails if passed
a salt that violates specs. On Linux, crypt() also fails with
DES/MD5 salts in FIPS140 mode. Rather than exit() on NULL returns
we send them back to the caller for appropriate handling.
2013-07-28 18:41:11 +02:00
945eb8f50b if using the static char* for pw_dir, strdup it so pw_free() can be used. (Closes: Debian#691459) 2013-07-28 14:16:09 +02:00
f243d4077d * NEWS, src/login.c: Log in utmp / utmpx / wtmp also when PAM is
enabled. This is not done by pam_lastlog. This was broken on
	2011-07-23.
	* NEWS, libmisc/utmp.c: Do not log in wtmp when PAM is enabled.
	This is done by pam_lastlog.
2012-05-18 17:57:52 +00:00
011c5155fa 2012-02-13 Mike Frysinger <vapier@gentoo.org>
* libmisc/copydir.c: Add missing #include <stdarg.h>
2012-02-13 19:16:29 +00:00
2c24c012bd * lib/prototypes.h, lib/Makefile.am, po/POTFILES.in,
libmisc/copydir.c, lib/selinux.c: Move set_selinux_file_context()
	and reset_selinux_file_context() from libmisc/copydir.c to
	lib/selinux.c.
	* lib/commonio.c: Use set_selinux_file_context() and
	reset_selinux_file_context() instead of using the existing
	database SELinux context to set the context for the newly created
	files.
2011-12-09 22:13:02 +00:00
e570b8ded4 * libmisc/copydir.c: Ignore errors to copy ACLs if the operation
is not supported.
2011-11-21 19:34:22 +00:00
82d767d121 * libmisc/root_flag.c, src/gpasswd.c, src/chsh.c: Add splint
annotations.
	* src/pwconv.c, src/pwunconv.c, src/grpconv.c, src/grpunconv.c:
	Ignore return value of spw_rewind, pw_rewind, sgr_rewind, and
	gr_rewind.
	* lib/commonio.h: Both head and tail cannot be owned. Set tail as
	dependent.
	* src/expiry.c: Ignore return value of expire ().
	* src/expiry.c: The catch_signals function does not use its sig
	parameter.
	* src/userdel.c: Last audit_logger parameter is a
	shadow_audit_result, use SHADOW_AUDIT_FAILURE instead of 0.
2011-11-19 21:51:52 +00:00
29050eadb5 * NEWS, src/userdel.c, man/userdel.8.xml: Add option -Z/--selinux-user.
* libmisc/system.c, lib/prototypes.h, libmisc/Makefile.am: Removed
	safe_system().
	* lib/selinux.c, po/POTFILES.in, lib/prototypes.h,
	lib/Makefile.am: Added helper functions for semanage.
	* README, src/useradd.c, src/usermod.c, src/userdel.c,
	configure.in: Use libsemanage instead of semanage.
2011-11-17 21:51:07 +00:00
2e1652fdec 2011-11-16 Peter Vrabec <pvrabec@redhat.com>
* libmisc/copydir.c: Ignore perm_copy_file() errors with errno set
	to ENOTSUP.
2011-11-16 21:00:43 +00:00
72ba5c4de7 * libmisc/root_flag.c: Add missing #include <stdio.h> 2011-11-16 19:34:39 +00:00
2ecea675ee Fix cut&paste issue from yesterday. 2011-11-13 16:24:49 +00:00
3c608e56f6 * libmisc/root_flag.c: Drop privileges before changing root. The
--root option should not be used by regular users for suid utils.
	* libmisc/root_flag.c: Improve error messages.
2011-11-11 12:09:58 +00:00
3bb7c43694 * libmisc/copydir.c: Avoid conflict with glibc. Rename error to
error_acl.
2011-11-11 11:59:21 +00:00
7861eaa5ec Re-indent. 2011-11-06 18:40:06 +00:00
e4fbf98b18 * man/limits.5.xml, libmisc/limits.c: Sort limit identifiers.
* libmisc/limits.c: Fix support for the K limit identifier.
	* libmisc/limits.c: Add missing default limit for L and U.
2011-11-06 18:39:47 +00:00
0b5574c28a * lib/prototypes.h, libmisc/Makefile.am, libmisc/root_flag.c,
po/POTFILES.in: Add process_root_flag() to process the --root
	option and chroot so that the chroot config is used and changes
	are applied to the chroot.
2011-11-06 18:37:19 +00:00
704f28df98 * lib/prototypes.h, libmisc/cleanup.c, lib/spawn.c, src/chage.c:
Add splint annotations.
2011-10-18 20:23:33 +00:00
f870cc7eab Miscellaneous:
* lib/prototypes, libmisc/basename.c (Basename): Input is a
	constant string.
	* lib/prototypes.h, lib/spawn.h, lib/spawn.c, src/userdel.c,
	lib/nscd.c, lib/Makefile.am: Delete spawn.h. Move from spawn.h to
	prototypes.h.
	* src/userdel.c: Remove unused variables.
	* lib/nscd.c: Remove unused header files.
	* lib/nscd.c: Add the program name to error messages.
	* lib/nscd.c: Indicate when nscd does not terminate normally (signal).
	* lib/spawn.c: Updated header.
	* lib/spawn.c: Flush stdout and stderr to avoid inheriting from
	ongoing buffers.
	* lib/spawn.c: Avoid implicit conversion of pointer to boolean.
	* lib/spawn.c: Replace perror by a complete message.
	* lib/spawn.c: Continue to wait for the child if another child
	terminates.
	* lib/prototypes.h: The name field from cleanup_info_mod is a
	constant string. (username).
2011-09-18 21:02:43 +00:00
05b55446da * libmisc/cleanup.c: Spawn children should no trigger cleanup
actions. Make sure only the parent (initial caller) perform the
	cleanup actions.
2011-09-18 20:43:28 +00:00
f1db2383fc * libmisc/salt.c (SHA_salt_rounds): It is statically ensured that
the format fits in rounds_prefix.
	* libmisc/loginprompt.c: Likewise.
2011-09-18 20:41:38 +00:00
cd10be6c91 * libmisc/salt.c (SHA_salt_rounds): It is statically ensured that
the format fits in rounds_prefix.
2011-09-18 20:40:50 +00:00
a9c38f4902 * src/chgpasswd.c: Add splint annotations.
* src/chpasswd.c: Likewise.
	* src/newusers.c: Likewise.
	* libmisc/salt.c, lib/prototypes.h (crypt_make_salt): Likewise.
2011-08-14 14:37:17 +00:00
e2bdb4ff83 * libmisc/chowndir.c: Add splint annotations. 2011-08-14 14:00:14 +00:00
5f37d13405 * lib/prototypes.h, libmisc/getgr_nam_gid.c: getgr_nam_gid()
returns an allocated structure.
2011-08-14 13:16:26 +00:00
019048c555 * libmisc/find_new_uid.c: free (used_uids) on return.
* libmisc/find_new_gid.c: free (used_gids) on return.
2011-07-30 01:38:07 +00:00
275ffe2e01 * libmisc/find_new_gid.c, libmisc/find_new_uid.c: Fail in case of
invalid configuration. 
	* libmisc/find_new_gid.c, libmisc/find_new_uid.c: Updated
	comments.
	* libmisc/find_new_gid.c, libmisc/find_new_uid.c: Be more strict
	on the loop stop conditions. Stop if we passed the limit, even if
	the limit itself was never noticed.
2011-07-22 21:53:01 +00:00
75f4b049a6 * libmisc/isexpired.c: Added parenthesis.
* libmisc/env.c: Added comments.
	* libmisc/env.c: Avoid implicit conversion of pointer to boolean.
2011-06-16 21:25:36 +00:00
c9281b5bb9 Harmonize message. 2011-06-03 21:09:27 +00:00
f406d16b7b * libmisc/xmalloc.c: Harmonize message. 2011-06-02 18:41:05 +00:00
58baa7aa61 * libmisc/find_new_uid.c, libmisc/find_new_gid.c: Add missing
memory allocation check.
2011-06-02 18:40:06 +00:00
f140c3a0e5 * NEWS, libmisc/addgrps.c: Fix allocator loop. Continue to
getgroups() when getgroups fails (-1) with errno==EINVAL.
2011-06-02 15:36:29 +00:00
d7fa77f03b * lib/groupio.c, lib/sgroupio.c, lib/shadowio.c, lib/pwio.c: Check
entry validity before commits to databases.
	* libmisc/fields.c, libmisc/Makefile.am, lib/fields.c,
	lib/Makefile.am, po/POTFILES.in: fields.c moved from libmisc to
	lib.
2011-02-16 20:32:16 +00:00
8b4f07692e * NEWS, libmisc/console.c: Fix CONSOLE parser. This caused login
to hang when CONSOLE was configured with a colon separated list of
	TTYs.  See http://bugs.gentoo.org/show_bug.cgi?id=324419
2010-11-19 21:54:41 +00:00
dffc624b37 Integrate review comments from Julien Cristau
* libmisc/copydir.c: Missing parenthesis in comment.
	* libmisc/chowndir.c: Fixed memory leak on failed realloc().
	* libmisc/chowndir.c: Make sure the buffer for the path is large
	enough.
	* libmisc/remove_tree.c: Remove check for NULL before free().
2010-09-05 15:34:42 +00:00
1d336d3a1e * lib/protoypes.h, libmisc/copydir.c, src/useradd.c:
selinux_file_context renamed set_selinux_file_context.
	* lib/protoypes.h, libmisc/copydir.c, src/useradd.c:
	Added reset_selinux_file_context.
	* src/useradd.c: Check the return value of
	set_selinux_file_context and reset_selinux_file_context.
	* libmisc/copydir.c: Check the return value of
	reset_selinux_file_context.
2010-08-28 19:58:00 +00:00