Email: dwalsh@redhat.com
Subject: Patch matchpathcon to eliminate file "/"
Date: Wed, 04 Mar 2009 15:39:31 -0500
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So
matchpathcon /etc/
Will work the same as
matchpathcon /etc
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Signed-off-by: Chad Sellers <csellers@tresys.com>
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>
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>
messages via netlink socket from SELinux.
* Two new callbacks were added to selinux_set_callback(3)
- SELINUX_CB_SETENFORCE
is invoked when it got SELNL_MSG_SETENFORCE message in the
avc_netlink_process().
- SELINUX_CB_POLICYLOAD
is invoked when it got SELNL_MSG_POLICYLOAD message in the
avc_netlink_process().
* Three functions were exposed to applications.
- int avc_netlink_open(int blocking);
- void avc_netlink_loop(void);
- void avc_netlink_close(void);
Due to a few reasons, SE-PostgreSQL implements its own userspace
avc, so it needs to copy and paste some of avc_internal.c.
This update enables to share common part from such kind of application.
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
windows with selinux running. Part of the reason for this was because
libselinux called into the kernel /selinux/create interface for every
object. This patch caches the results of /selinux/create in the
userspace avc to significantly increase the speed of these types of
operations.
Revised to correct locking, interface issues.
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Eamon Walsh <ewalsh@tycho.nsa.gov>
Email: dwalsh@redhat.com
Subject: Add restorecon and install methods for libselinux python bindings.
Date: Tue, 06 Jan 2009 10:31:04 -0500
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Daniel J Walsh wrote:
> Joshua Brindle wrote:
>> Daniel J Walsh wrote:
>> Luke Macken wrote restorecon and install functions used in Fedora
>> Infrastructure which can be used to install files with the proper
>> context and to fix the labels of files/directories without having to
>> exec restorecon.
>
>> diff --exclude-from=exclude -N -u -r
>> nsalibselinux/src/selinuxswig_python.i
>> libselinux-2.0.75/src/selinuxswig_python.i
>> --- nsalibselinux/src/selinuxswig_python.i 2008-08-28
>> 09:34:24.000000000 -0400
>> +++ libselinux-2.0.75/src/selinuxswig_python.i 2008-11-14
>> 17:09:50.000000000 -0500
>> @@ -6,6 +6,32 @@
>> #include "selinux/selinux.h"
>> %}
>
>> +%pythoncode %{
>> +
>> +import shutil, os
>> +
>> +def restorecon(path, recursive=False):
>> + """ Restore SELinux context on a given path """
>> + mode = os.stat(path)[stat.ST_MODE]
>
>> stat doesn't exist here, perhaps he meant mode?
>
>> + status, context = matchpathcon(path, mode)
>> + if status == 0:
>> + lsetfilecon(path, context)
>> + if recursive:
>> + os.path.walk(path, lambda arg, dirname, fnames:
>> + map(restorecon, [os.path.join(dirname, fname)
>> + s for fname in fnames]),
>> None)
>
>> typo, the s causes a syntax error
>
>> +
>> +def copytree(src, dest):
>> + """ An SELinux-friendly shutil.copytree method """
>> + shutil.copytree(src, dest)
>> + restorecon(dest, recursive=True)
>> +
>> +def install(src, dest):
>> + """ An SELinux-friendly shutil.move method """
>> + shutil.move(src, dest)
>> + restorecon(dest, recursive=True)
>> +%}
>> +
>> /* security_get_boolean_names() typemap */
>> %typemap(argout) (char ***names, int *len) {
>> PyObject* list = PyList_New(*$2);
>
>> This patch doesn't appear correct, I'll fix the things above, have you
>> been testing this at all?
>
> Must have sent you a bad patch.
>
>
> This is what the current patch looks like.
>
And this is still broken.
One more fix.
+ mode = os.stat(path)[stat.ST_MODE]
should be
+ mode = os.lstat(path)[stat.ST_MODE]
Modified to remove copytree and install functions
Signed-off-by: Joshua Brindle <method@manicmethod.com>
Currently, the message types are defined but not used.
This will allow better separation of messages when logging to facilities
such as libaudit.
Signed-off-by: Eamon Walsh <ewalsh@tycho.nsa.gov>
Email: dwalsh@redhat.com
Subject: matchpathcon -V does not always work as expected.
Date: Tue, 30 Sep 2008 08:54:18 -0400
matchpathcon -V should be passing the mode when checking whether the
file context on a file is correct.
Signed-off-by: Joshua Brindle <method@manicmethod.com>
Email: dwalsh@redhat.com
Subject: Some missing man pages from libselinux
Date: Wed, 24 Sep 2008 08:57:44 -0400
We are still missing the following man pages.
Perhaps some of these functions should be removed?
selinux_users_path seems to return a bogus directory?
Also do not have _raw functions defined in man pages.
matchpathcon_checkmatches
matchpathcon_filespec_add
matchpathcon_filespec_destroy
matchpathcon_filespec_eval
matchpathcon_index
matchpathcon_init_prefix
print_access_vector
security_canonicalize_context
security_disable
security_set_boolean_list
selinux_check_passwd_access
selinux_customizable_types_path
selinux_file_context_cmp
selinux_file_context_verify
selinux_get_callback
selinux_init_load_policy
selinux_lsetfilecon_default
selinux_mkload_policy
selinux_raw_to_trans_context
selinux_trans_to_raw_context
selinux_translations_path
selinux_users_path
set_selinuxmnt
Signed-off-by: Joshua Brindle <method@manicmethod.com>
