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On 10/20/2010 07:48 AM, su heng wrote:
Hi Daniel,
Thanks for your reply. Please see my remarks,Thanks.
On Mon, 2010-10-18 at 10:47 -0400, Daniel J Walsh wrote:
On 10/19/2010 09:33 AM, su heng wrote:
>>> Hi,
>>>
>>> I have two problem want to fix.
>>>
>>> Firstly,
>>>
>>> [root@localhost tmp]# mkdir test
>>> [root@localhost tmp]# ls -dZ test
>>> drwxr-xr-x. root root unconfined_u:object_r:user_tmp_t:s0 test
>>> [root@localhost tmp]# semanage fcontext -a -t samba_share_t
>>> "/tmp/test(/.*)?"
>>> [root@localhost tmp]# restorecon -R -v /tmp/test/
>>> restorecon reset /tmp/test context
>>> unconfined_u:object_r:user_tmp_t:s0->system_u:object_r:samba_share_t:s0
>>> [root@localhost tmp]# ls -dZ test
>>> drwxr-xr-x. root root system_u:object_r:samba_share_t:s0 test
>>> ------------------------------------------------------------------
>>> When I tried to delete the type, an error happened.
>>> [root@localhost tmp]# semanage fcontext -d /tmp/test/
>>> Can't create lock file
'/var/cache/abrt/pyhook-1287493825-3446.lock':
>>> Permission denied
>>> Traceback (most recent call last):
>>> File "/usr/sbin/semanage", line 501, in <module>
>>> process_args(sys.argv[1:])
>>> File "/usr/sbin/semanage", line 437, in process_args
>>> OBJECT.delete(target, ftype)
>>> File "/usr/lib/python2.6/site-packages/seobject.py", line 1623,
in
>>> delete
>>> self.__delete( target, ftype)
>>> File "/usr/lib/python2.6/site-packages/seobject.py", line 1594,
in
>>> __delete
>>> if target in self.equiv.keys():
>>> AttributeError: fcontextRecords instance has no attribute 'equiv'
>>>
>>>
This looks like a bug in semanage
> [Su Heng:] Which bug describe it and could u give me a URL as a
> reference?
I was suggesting that you report one. This seems to work in F13 and beyond.
rpm -q policycoreutils
> [Su Heng:] What is this line used for? I get a result under my shell:
> [root@localhost suheng]# rpm -q policycoreutils
> policycoreutils-2.0.74-4.fc12.i686
Please attempt to yum -y update policycoreutils
To get newer version of policycoreutils.
This line
# semanage fcontext -d /tmp/test/
should be
# semanage fcontext -d "/tmp/test(/.*)?"
> [Su Heng:] Yes, thanks, the same error still.
> And I want know the solution for this issue. Could u give me some more
> details to fix it?
But it looks like you will still have the bug.
>>> And I have searched from Google, there is a bug has been reported. So I
>>> update it to the latest selinux-policy. The error still. How should I
>>> do?
>>>
>>> Secondly,
>>> I have read the document which resided on fedora site. I have a
>>> question.
>>> We can change the type or the domain of a file or process which can let
>>> us pass through the check of se-linux.
>>> And we also can write a policy file to pass through se-linux.
>>>
>>> These two methods are the same destination? If so, which one is
>>> better when we try to use and why?
>>> If not, Please give me some suggestion about the difference and when we
>>> should to use for them?
>>>
Not sure I understand the question. I would say you want to change the
domain of the process or the context of the file to match the truth.
For example, if you have a file that needs to be shared by samba then it
is usually better to change the label to samba_share_t rather then run
the samba process as an unconfined process.
But it is best for you to describe the exact problem that you are having
with SELinux
> [Su Heng:] I mean I have a folder path "/tmp/share_for_smb_www". I want
> both of samba and httpd can access it. If I change the type of this
> directory to "samba_share_t", httpd won't access it. At this time I
have
> to switch the type of this directory frequently.
> As I know, RBAC can let more than one "Subject" to access the same
> "Object". So, can a folder or file(Object) can have more than one type?
> How selinux implements this? to use policy configure?
>>>
>>> Thanks & Best Regards,
>>> Su Heng
>>>
>>>
>>>
>>>
>>> --
>>> selinux mailing list
>>> selinux(a)lists.fedoraproject.org
>>>
https://admin.fedoraproject.org/mailman/listinfo/selinux
Thanks & Best Regards,
Su Heng
You want to set the context to public_content_t or public_content_rw_t
if you want one of apache or samba to have write access.
man samba_selinux
man httpd_selinux
Will excplain this.
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