| 09d99e8bec6e112598518c08a90d9423e61c8540 |
|
22-Sep-2016 |
Jason Zaman <jason@perfinion.com> |
libselinux: Add openrc_contexts functions
The file will initially contain:
run_init=run_init_t
There can not be any spaces around the = since OpenRC's existing config
files and the methods it uses require it.
Signed-off-by: Jason Zaman <jason@perfinion.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| b2c1b0baaf52d79f8050fc1e3c146c698ef0ad7a |
|
20-Jun-2016 |
Petr Lautrbach <plautrba@redhat.com> |
libselinux: add selinux_snapperd_contexts_path()
Snapper needs a way how to set a proper selinux context on btrfs
subvolumes originating in snapshot create command. Fs can't handle it on
its own so snapper will enforce .snapshots subvolume relabeling
according to a file returned by selinux_snapperd_contexts_path().
The format of the file will be similar to other contexts file:
snapperd_data = system_u:object_r:snapperd_data_t:s0
Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=1247530
https://bugzilla.redhat.com/show_bug.cgi?id=1247532
Signed-off-by: Petr Lautrbach <plautrba@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| b408d72ca9104cb0c1bc4e154d8732cc7c0a9190 |
|
18-Sep-2015 |
Stephen Smalley <sds@tycho.nsa.gov> |
libselinux: flush the class/perm string mapping cache on policy reload
This improves the robustness of programs using selinux_check_access()
in the face of policy updates that alter the values of the class or
permissions that they are checking. Otherwise, a policy update can
trigger false permission denials, as in
https://bugzilla.redhat.com/show_bug.cgi?id=1264051
Changes to the userspace class/permission definitions should still be
handled with care, as not all userspace object managers have been converted
to use selinux_check_access() and even those that do use it are still not
entirely safe against an interleaving of a policy reload and a call to
selinux_check_access(). The change does however address the issue in
the above bug and avoids the need to restart systemd.
This change restores the flush_class_cache() function that was removed in
commit 435fae64a931 ("libselinux: Remove unused flush_class_cache method")
because it had no users at the time, but makes it hidden to avoid exposing
it as part of the libselinux ABI.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
/external/selinux/libselinux/src/selinux_internal.h
|
| 8d7c2854c579a2bc85b49b62ccbf38a98fbdd475 |
|
21-May-2015 |
Petr Lautrbach <plautrba@redhat.com> |
libselinux: add selinux_openssh_contexts_path()
openssh in Fedora uses "sshd_net_t" type for privilege separated
processes in the preauthentication phase. Similarly, openssh portable uses
"sftp_t" for internal-sftp processes. Both type are hardcoded what is not ideal.
Therefore selinux_openssh_contexts_path() was created to get a path where sshd
can get a correct types prepared by a distribution or an administrator.
Signed-off-by: Petr Lautrbach <plautrba@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| c08c4eacab8d55598b9e5caaef8a871a7a476cab |
|
11-May-2015 |
Stephen Smalley <sds@tycho.nsa.gov> |
libselinux: is_selinux_enabled: Add /etc/selinux/config test.
To avoid regressions such as the one reported in:
https://bugzilla.redhat.com/show_bug.cgi?id=1219045
add a test for /etc/selinux/config to is_selinux_enabled().
This ensures that systems that do not install selinux-policy
will continue to return 0 from is_selinux_enabled().
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
/external/selinux/libselinux/src/selinux_internal.h
|
| 7eec00a5be8b5cebcbbc9a30b42b34f4a623c587 |
|
09-Oct-2013 |
Dan Walsh <dwalsh@redhat.com> |
Add selinux_current_policy_path, which returns the a pointer to the loaded policy
Also change audit2why to look at the loaded policy rather then searching on disk for
the policy file. It is more likely that you are examining the running policy.
/external/selinux/libselinux/src/selinux_internal.h
|
| ce2a8848ad45e375cfdb58cebe28bc12431bb3db |
|
09-Oct-2013 |
Dan Walsh <dwalsh@redhat.com> |
Add selinux_systemd_contexts_path
systemd has some internal contexts like generated systemd unit files
that we want to allow it to check against processes trying to manage them.
/external/selinux/libselinux/src/selinux_internal.h
|
| ee6901618c9da360515474145504c7b58258441f |
|
11-Jun-2012 |
Dan Walsh <dwalsh@redhat.com> |
libselinux: expose selinux_boolean_sub
Make selinux_boolean_sub a public method so getsebool can use it, as well as
potentially used within libsemanage.
Signed-off-by: Eric Paris <eparis@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 88c35241535803247bd3044187c6c3b3c7f02c79 |
|
18-Apr-2012 |
Eric Paris <eparis@redhat.com> |
libselinux: boolean name equivalency
Add support for booleans.subs file. Basically this allows us to finally change
badly named booleans to some standard name.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| c802d4a6d53120a7c067c29625a17b09f922f4d3 |
|
18-Apr-2012 |
Dan Walsh <dwalsh@redhat.com> |
libselinux: Add support for lxc_contexts_path
In order for lxc to look up its process and file labels we add new
libselinux support. This is what we do for everything else, like
libvirt, seposgresql, etc.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 2b5a0530e7c06150c84fc233fbfab40c57130f84 |
|
25-Mar-2012 |
Kohei KaiGai <kaigai@kaigai.gr.jp> |
libselinux: security_compute_create_name(3)
I'd like to use this interface to implement special case handling
for the default labeling behavior on temporary database objects. Allow
userspace to use the filename_trans rules added to policy.
Signed-off-by: KaiGai Kohei <kohei.kaigai@emea.nec.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| b3b19fdce58ff6ddfa6dfb8e5576c922c96e1e45 |
|
22-Sep-2011 |
Eric Paris <eparis@redhat.com> |
libselinux: load_policy: handle selinux=0 and /sys/fs/selinux not exist
Handle situation where selinux=0 passed to the kernel and both /selinux and
/sys/fs/selinux directories do not exist. We used to handle selinux=0
(or kernel compile without selinux) by getting ENODEV when we tried to
mount selinuxfs on /selinux. Now selinux=0 means that /sys/fs/selinux
won't exist and we never create the real directory /selinux at all. So
we get ENOENT instead of ENODEV. The solution is to check to see if the
mount failure was for ENODEV and if not to check if selinuxfs exists in
/proc/filesystems at all. If it doesn't exist, that's equivalent to
ENODEV.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 20b43b3fd3d392c4f12a963a4e46c264e7ed5163 |
|
06-Apr-2011 |
Daniel J Walsh <dwalsh@redhat.com> |
This patch adds a new subs_dist file.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
The idea is to allow distributions to ship a subs file as well as let
the user modify subs.
In F16 we are looking at shipping a
file_contexts.subs_dist file like this
cat file_contexts.subs_dist
/run /var/run
/run/lock /var/lock
/var/run/lock /var/lock
/lib64 /lib
/usr/lib64 /usr/lib
The we will remove all (64)? from policy.
This will allow us to make sure all /usr/lib/libBLAH is labeled the same
as /usr/lib64/libBLAH
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/
iEYEARECAAYFAk2c1ksACgkQrlYvE4MpobNXcQCgqgAiQJxmwa1+NdIq8E3tQRp6
QT0An0ihA60di9CRsEqEdVbSaHOwtte5
=LXgd
-----END PGP SIGNATURE-----
Signed-off-by: Steve Lawrence <slawrence@tresys.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 1629d2f89a8c5f758413b87b94740aaaa5f21144 |
|
06-Apr-2011 |
Daniel J Walsh <dwalsh@redhat.com> |
This patch cleans up a couple of crashes caused by libselinux
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
If you fail to load_policy in the init or SELinux is disabled, you need
to free the selinux_mnt variable and clear the memory.
systemd was calling load_polcy on a DISABLED system then later on it
would call is_selinux_enabled() and get incorrect response, since
selinux_mnt still had valid data.
The second bug in libselinux, resolves around calling the
selinux_key_delete(destructor_key) if the selinux_key_create call had
never been called. This was causing data to be freed in other
applications that loaded an unloaded the libselinux library but never
setup setrans or matchpathcon.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/
iEYEARECAAYFAk2c0/UACgkQrlYvE4MpobMP1QCfXAFD3pfWFLd1lylU/vjsZmpM
mcUAnA2l3/GKGC3hT8XB9E+2pTfpy+uj
=jpyr
-----END PGP SIGNATURE-----
Signed-off-by: Steve Lawrence <slawrence@tresys.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| f0b3127ca3c99ae218dba43a6e3f7430081c412b |
|
09-Mar-2011 |
Eamon Walsh <ewalsh@tycho.nsa.gov> |
Use library destructors to destroy per-thread keys.
This prevents the key destructors, intented to free per-thread
heap storage, from being called after libselinux has been unloaded.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=680887
Signed-off-by: Eamon Walsh <ewalsh@tycho.nsa.gov>
/external/selinux/libselinux/src/selinux_internal.h
|
| a29ff33baf366825c0fbe721d30b12b5b96a64e1 |
|
02-Dec-2010 |
Eamon Walsh <ewalsh@tycho.nsa.gov> |
Implement destructors for thread-local heap data.
Description of problem:
Use of __thread variables is great for creating a thread-safe variable, but
only insofar as the contents of that variable can safely be abandoned on
pthread_exit(). The moment you store malloc()d data into a __thread void*
variable, you have leaked memory when the thread exits, since there is no way
to associate a destructor with __thread variables.
The _only_ safe way to use thread-local caching of malloc()d data is to use
pthread_key_create, and associate a destructor that will call free() on the
resulting data when the thread exits.
libselinux is guilty of abusing __thread variables to store malloc()d data as a
form of a cache, to minimize computation by reusing earlier results from the
same thread. As a result of this memory leak, repeated starting and stopping
of domains via libvirt can result in the OOM killer triggering, since libvirt
fires up a thread per domain, and each thread uses selinux calls such as
fgetfilecon.
Version-Release number of selected component (if applicable):
libselinux-2.0.94-2.el6.x86_64
libvirt-0.8.1-27.el6.x86_64
How reproducible:
100%
Steps to Reproduce:
0. These steps are run as root, assuming hardware kvm support and existence of
a VM named fedora (adjust the steps below as appropriate); if desired, I can
reduce this to a simpler test case that does not rely on libvirt, by using a
single .c file that links against libselinux and repeatedly spawns threads.
1. service libvirtd stop
2. valgrind --quiet --leak-check=full /usr/sbin/libvirtd& pid=$!
3. virsh start fedora
4. kill $pid
Actual results:
The biggest leak reported is due to libselinux' abuse of __thread:
==26696== 829,730 (40 direct, 829,690 indirect) bytes in 1 blocks are
definitely lost in loss record 500 of 500
==26696== at 0x4A0515D: malloc (vg_replace_malloc.c:195)
==26696== by 0x3022E0D48C: selabel_open (label.c:165)
==26696== by 0x3022E11646: matchpathcon_init_prefix (matchpathcon.c:296)
==26696== by 0x3022E1190D: matchpathcon (matchpathcon.c:317)
==26696== by 0x3033ED7FB5: SELinuxRestoreSecurityFileLabel (security_selinux.c:381)
==26696== by 0x3033ED8539: SELinuxRestoreSecurityAllLabel (security_selinux.c:749)
==26696== by 0x459153: qemuSecurityStackedRestoreSecurityAllLabel (qemu_security_stacked.c:257)
==26696== by 0x43F0C5: qemudShutdownVMDaemon (qemu_driver.c:4311)
==26696== by 0x4555C9: qemudStartVMDaemon (qemu_driver.c:4234)
==26696== by 0x458416: qemudDomainObjStart (qemu_driver.c:7268)
==26696== by 0x45896F: qemudDomainStart (qemu_driver.c:7308)
==26696== by 0x3033E75412: virDomainCreate (libvirt.c:4881)
==26696==
Basically, libvirt created a thread that used matchpathcon during 'virsh start
fedora', and matchpathcon stuffed over 800k of malloc'd data into:
static __thread char **con_array;
which are then inaccessible when libvirt exits the thread as part of shutting
down on SIGTERM.
Expected results:
valgrind should not report any memory leaks related to libselinux.
Signed-off-by: Eamon Walsh <ewalsh@tycho.nsa.gov>
Reported-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 70aeeb918aa721ad90ed8e1b433a55c8ecf2cb83 |
|
15-Mar-2010 |
Eamon Walsh <ewalsh@tycho.nsa.gov> |
This patch allows selabel_*() interfaces to provide an expected security context
for the given database object identified by its name and object class.
It is necessary to implement a feature something like the restorecon on databases.
The specfile shall be described as follows:
------------------------
#
# The specfile for database objects
# (for SE-PostgreSQL)
#
# <object class> <object name> <security context>
#
db_database * system_u:object_r:sepgsql_db_t:s0
db_schema *.pg_catalog system_u:obejct_r:sepgsql_sys_schema_t:s0
db_schema *.* system_u:object_r:sepgsql_schema_t:s0
db_table *.pg_catalog.* system_u:object_r:sepgsql_sysobj_t:s0
db_table *.*.* system_u:object_r:sepgsql_table_t:s0
------------------------
- All the characters after the '#' are ignored.
- Wildcards ('*' and '?') are available.
- It returns the first match security context.
Note that hierarchy of the namespace of database objects depends on RDBMS.
So, author of the specfile needs to write correct patterns which are suitable
for the target RDBMS. The patched selabel_*() interfaces don't have any
heuristics for the namespace hierarchy to be suitable for widespread RDBMSs.
In the case of SE-PgSQL, when we lookup an expected security context for the
'my_table' table in the 'public' schema and 'postgres' database, the caller
shall provide 'postgres.public.my_table' as a key.
In the default, it tries to read a specfile which maps database objects and security
context from the /etc/selinux/$POLICYTYPE/contexts/sepgsql_contexts.
Note that when another RDBMS uses this interface, it needs to give an explicit
SELABEL_OPT_PATH option on the selabel_open().
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
Acked-by: Eamon Walsh <ewalsh@tycho.nsa.gov>
/external/selinux/libselinux/src/selinux_internal.h
|
| 7d19f9df510daef5dc929df5854c2dda2a64f475 |
|
20-Oct-2009 |
Chad Sellers <csellers@tresys.com> |
libselinux: Export reset_selinux_config()
In integrating SELinux policy into rpm, we have a need to be
able to reset the configuration data (e.g. policy type) loaded
into libselinux. These values are currently loaded lazily by a
number of different functions (e.g. matchpatchcon_init()).
Since we are changing rpm to install policy, including initial
base policy, we need to be able to reload these configuration
items after the policy has been installed.
reset_selinux_config() already exists and is used by
selinux_init_load_policy() for a similar reason, but it is not
exported. This was probably intentionaly since it is not thread
safe at all. That said, rpm needs to do the same thing. This
patch makes the function public, and places a warning in the
header comment that it is not thread safe.
Signed-off-by: Chad Sellers <csellers@tresys.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 8c372f665db44cf753bb299e2ee7dcf6143b9e9e |
|
01-Jul-2009 |
Stephen Smalley <sds@tycho.nsa.gov> |
libselinux: lazy init
Revive Steve Grubb's patch for libselinux lazy init and extend it to
address not only the reading of /etc/selinux/config but also probing
for /selinux/class and reading of /selinux/mls. This should reduce the
need for dontaudit rules for programs that link with libselinux and it
should reduce unnecessary overhead.
I did not convert init_selinuxmnt over to lazy init since the functions
that use selinux_mnt are not localized, and it only requires stat'ing
of /selinux in the common case.
I couldn't see a valid reason why we needed fini_obj_class_compat(), as
the existence of /selinux/class will only change across a reboot with
different kernel versions. fini_context_translations() already had a
comment saying that it was unnecessary as well.
Before:
$ strace ls 2> err
$ grep selinux err
open("/lib/libselinux.so.1", O_RDONLY) = 3
open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = 3
statfs64("/selinux", 84, {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0, f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255, f_frsize=4096}) = 0
stat64("/selinux/class", {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
open("/selinux/mls", O_RDONLY|O_LARGEFILE) = 3
After:
$ strace ls 2> err
$ grep selinux err
open("/lib/libselinux.so.1", O_RDONLY) = 3
statfs64("/selinux", 84, {f_type=0xf97cff8c, f_bsize=4096, f_blocks=0, f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={0, 0}, f_namelen=255, f_frsize=4096}) = 0
Original-patch-by: Steve Grubb <linux_4ever@yahoo.com>
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
/external/selinux/libselinux/src/selinux_internal.h
|
| 20271d94ed2b26b94b052ba6ed90b63566cecbb7 |
|
04-Jun-2009 |
Daniel J Walsh <dwalsh@redhat.com> |
Author: Daniel J Walsh
Email: dwalsh@redhat.com
Subject: SELinux context patch
Date: Mon, 18 May 2009 14:16:12 -0400
This patch adds context files for virtual_domain and virtual_image,
these are both being used to locat the default context to be executed by
svirt.
I also included the subs patch which I submitted before. This patch
allows us to substitute prefixes to matchpathcon.
So we can say /export/home == /home
and
/web == /var/www
Author: Chad Sellers
Email: csellers@tresys.com
Flipped free()'s in original patch when strdup'd fail to proper order.
Signed-off-by: Chad Sellers <csellers@tresys.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 433a99d4032706af724ff779d8d9d539f20793f8 |
|
08-Apr-2009 |
KaiGai Kohei <kaigai@ak.jp.nec.com> |
It is useful for userspace object manager, if libselinux has an
interface something like: int security_deny_unknown(void);
This interface can suggest applications preferable behavior when
string_to_security_class() or string_to_av_perm() returns invalid
value which means the security policy does not define required
ones.
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| 55ed6e7fa6b7d55c628fa04508521920e60a43f7 |
|
08-Apr-2009 |
KaiGai Kohei <kaigai@ak.jp.nec.com> |
This patch enables applications to handle permissive domain correctly.
Since the v2.6.26 kernel, SELinux has supported an idea of permissive
domain which allows certain processes to work as if permissive mode,
even if the global setting is enforcing mode.
However, we don't have an application program interface to inform
what domains are permissive one, and what domains are not.
It means applications focuses on SELinux (XACE/SELinux, SE-PostgreSQL
and so on) cannot handle permissive domain correctly.
This patch add the sixth field (flags) on the reply of the /selinux/access
interface which is used to make an access control decision from userspace.
If the first bit of the flags field is positive, it means the required
access control decision is on permissive domain, so application should
allow any required actions, as the kernel doing.
This patch also has a side benefit. The av_decision.flags is set at
context_struct_compute_av(). It enables to check required permissions
without read_lock(&policy_rwlock).
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
/external/selinux/libselinux/src/selinux_internal.h
|
| f9b1f1a2a17298b60a94780ab5899a8d91cbf100 |
|
01-Jan-2009 |
Eamon Walsh <ewalsh@tycho.nsa.gov> |
Add config path function for secolor.conf file.
Signed-off-by: Eamon Walsh <ewalsh@tycho.nsa.gov>
/external/selinux/libselinux/src/selinux_internal.h
|
| cfa3cb6fa5d0cc00fde75ee74ec2da577f62e141 |
|
26-Nov-2008 |
Eamon Walsh <ewalsh@tycho.nsa.gov> |
Add client routines for translating raw security contexts into colors.
Signed-off-by: Eamon Walsh <ewalsh@tycho.nsa.gov>
/external/selinux/libselinux/src/selinux_internal.h
|
| 13cd4c8960688af11ad23b4c946149015c80d549 |
|
19-Aug-2008 |
Joshua Brindle <method@manicmethod.com> |
initial import from svn trunk revision 2950
/external/selinux/libselinux/src/selinux_internal.h
|