changes from fedora 7 to 9

[Daniel J Walsh]

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Robert J. Carr wrote:
> Thanks Paul!  I put that label (httpd_sys_script_rw_t) on the trac.db
> file itself (not using -R as you suggested) and it worked.
> 
> So now for the whole teach a guy how to fish part.  Is this a new
> label for selinux in Fedora 9?  In my other working environment in
> Fedora 7 all files (including trac.db) are labeled with
> httpd_sys_content_t.  What's different?
> 
> Is there some guide that tells you the labels you should be using for
> specific types of httpd files?
> 
> Thanks again for the help ... it is greatly appreciated.
> 
> 
> On Fri, Sep 5, 2008 at 10:35 AM, Paul Howarth <paul at city-fan.org> wrote:
>> On Fri, 5 Sep 2008 09:16:11 -0700
>> "Robert J. Carr" <rjcarr at gmail.com> wrote:
>>
>>> Thanks Paul and Daniel-
>>>
>>> I piped the logs through audit2why and here's what it is saying:
>>>
>>> ----
>>>
>>> type=AVC msg=audit(1220631048.301:1541): avc:  denied  { write } for
>>> pid=8572 comm="httpd" name="trac.db" dev=dm-0 ino=2148813854
>>> scontext=unconfined_u:system_r:httpd_t:s0
>>> tcontext=system_u:object_r:httpd_sys_content_t:s0 tclass=file
>>>
>>> Was caused by:
>>> Missing type enforcement (TE) allow rule.
>>>
>>> You can use audit2allow to generate a loadable module to allow this
>>> access.
>>>
>>> ----
>>>
>>> As I said previously I know almost nothing about selinux, so if this
>>> means anything help is appreciated, otherwise I'm going to see what I
>>> can find out.
>>>
>>> Thanks for the guidance.
>>>
>>> On Fri, Sep 5, 2008 at 7:19 AM, Daniel J Walsh <dwalsh at redhat.com>
>>> wrote:
>>>> Robert J. Carr wrote:
>>>>> Hopefully this is a quick question to those that know SELinux more
>>>>> than I do, which wouldn't be very hard to accomplish.
>>>>>
>>>>> I'm migrating a (working) environment from one server running
>>>>> Fedora 7 to another running Fedora 9.  After pulling my hair out
>>>>> for most of the day I've found out the problem is with SELinux
>>>>> because when I turned it off temporarily everything worked fine.
>>>>>
>>>>> Not to get into too much detail, but my problem came from apache
>>>>> not being able to access a file (although the error isn't quite
>>>>> that clear).  Between the working environment and the non-working
>>>>> environment I can only see a couple differences in the selinux
>>>>> config files in /etc, but these have never been touched in either
>>>>> instance.
>>>>>
>>>>> The context labels are a bit different too.  The working
>>>>> environment has these selinux context labels:
>>>>>
>>>>>   user_u:object_r:httpd_sys_content_t
>>>>>
>>>>> But the non-working environment has these context labels:
>>>>>
>>>>>   unconfined_u:object_r:httpd_sys_content_t:s0
>>>>>
>>>>> It seems to get an extra field and the user changes to
>>>>> unconfined.  Is this relevant?
>>>>>
>>>>> There is nothing else that I can find different, is there anything
>>>>> else that could be the problem?
>>>>>
>>>>> Any advice would be greatly appreciated.
>>>>>
>>>>> --
>>>>> fedora-selinux-list mailing list
>>>>> fedora-selinux-list at redhat.com
>>>>> https://www.redhat.com/mailman/listinfo/fedora-selinux-list
>>>> Also pipe them through audit2why it might tell you you need to turn
>>>> on a boolean.
>>>>
>>>> grep http /var/log/audit/audit.log | audit2allow -w
>> OK, I don't know where your trac.db file is, so let's say
>> it's /srv/www/trac/db/trac.db
>>
>> See if this helps:
>> # chcon -R -t httpd_sys_script_rw_t /srv/www/trac/
>>
>> Cheers, Paul.
>>
>>
> 
> --
> fedora-selinux-list mailing list
> fedora-selinux-list at redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-selinux-list
man httpd_selinux

Explains a lot of it.

# semanage fcontext -a -t httpd_sys_script_rw_t '/srv/www/trac(/.*)?'


But this is revealing a bug in policy.  This is supposed to work out of
the box with the httpd_unified boolean turned on.  But the policy to do
this was accidently removed.

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