httpd can't send mails

Stephen Smalley sds at tycho.nsa.gov
Thu Jul 5 14:20:37 UTC 2007


On Thu, 2007-07-05 at 22:46 +0900, Shintaro Fujiwara wrote:
> > On Wed, 2007-07-04 at 08:16 +0900, Shintaro Fujiwara wrote:
> > > > Hi,
> > > > 
> > > > > -----Original Message-----
> > > > > From: fedora-selinux-list-bounces at redhat.com
> > > > [mailto:fedora-selinux-list-
> > > > > bounces at redhat.com] On Behalf Of Shintaro Fujiwara
> > > > > Sent: Monday, July 02, 2007 2:48 PM
> > > > > To: fedora-selinux-list
> > > > > Subject: Re: httpd can't send mails
> > > > > 
> > > > > 
> > > > > If you using postfix, here's what I did.
> > > > > I made interface for postfix.
> > > > > 
> > > > > ########################################
> > > > > ## <summary>
> > > > > ##      for xoops sending mail from postfix.
> > > > > ## </summary>
> > > > > ## <param name="domain">
> > > > > ##      Domain allowed to sending mails.
> > > > > ## </param>
> > > > > #
> > > > > 
> > > > > interface(`xoops_send_mail_by_postfix',`
> > > > >         gen_require(`
> > > > >                 type bin_t;
> > > > >                 type smtp_port_t;
> > > > >                 type sendmail_exec_t;
> > > > >         ')
> > > > >         allow $1 bin_t:dir search;
> > > > >         allow $1 smtp_port_t:tcp_socket { name_connect send_msg
> > > > > recv_msg };
> > > > >         allow $1 sendmail_exec_t:file { execute execute_no_trans
> > > > getattr
> > > > > read };
> > > > > ')
> > > > > 
> > > > 
> > > > If you have the full reference policy source you should use defined
> > > > interfaces instead of breaking encapsulation of the types. For example,
> > > > you can rewrite your interface without any requires as:
> > > > 
> > > > interface(`xoops_send_mail_by_postfix',`
> > > > 
> > > >         corecmd_search_bin($1)
> > > > 
> > > >         corenet_tcp_connect_smtp_port($1)
> > > >         corenet_tcp_sendrecv_smtp_port($1)
> > > > 
> > > >         mta_exec($1)
> > > > ')
> > > > 
> > > > David
> > > 
> > > Thanks !
> > > 
> > > That's what I'm aiming at in near future.
> > > 
> > > As a matter of fact, I printed every interfaces and felt at a loss,
> > > because of its thickness.
> > > 
> > > In what page or Software can I find those defined interfaces ?
> > > SLIDE ?
> > > 
> > > I once wrote such a software named segatex...
> > > 
> > > Why audit2allow is just echoing raw access vectors and not interfaces ?
> > > I think if audit2allow has such an option, it would be more convenient
> > > and rewarding.
> > 
> > audit2allow -R will attempt to match interfaces, albeit imperfectly.
> > 
> 
> Thanks for letting me know.
> I found new refpolicy using many interfaces.
> As a means of generating interfaces from raw denied messages,
> I worked on one .if file a test to break up interfaces.
> By this process, I think I can match audit.log to interfaces.
> Although incomplete, it looks like this...
> I will break up till I get access vectors.

Not sure what you are trying to do, but just look at sepolgen to see how
it is matching audit messages to interfaces.  You can re-use that
support.

-- 
Stephen Smalley
National Security Agency




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