On Sun, 2006-05-14 at 12:52 +0100, Paul Howarth wrote:
> On Sat, 2006-05-13 at 20:52 -0500, Gregory P. Ennis wrote:
> > On Sat, 2006-05-13 at 21:42 -0400, Paul Michael Reilly wrote:
> > > Les Mikesell <lesmikesell@xxxxxxxxx> writes:
> > >
> > > > On Sat, 2006-05-13 at 14:48, Paul Michael Reilly wrote:
> > > >
> > > > > LOGFILE=/root/procmail.log
> > > > > LOGABSTRACT=yes
> > > > > VERBOSE=1
> > > > >
> > > > > and send mail to "root" then I actually see an abstract appended to
> > > > > /root/procmail.log which is consistent with the procmail man page in
> > > > > that it says $HOME/.procmailrc will get processed. I leaped,
> > > > > incorrectly it would appear, to the conclusion that $HOME referred to
> > > > > the mail target. It must be referring to the User running procmail,
> > > > > i.e. "root" on a stock Fedora Core system, which makes considerable
> > > > > sense. This, I believe, is the crux of my battles.
> > > >
> > > > $HOME is the expansion of the environment variable HOME, which
> > > > is set to the 6th field of the user's /etc/passwd file entry,
> > > > i.e. their home directory. This happens in a straightforward
> > > > way during logins and is emulated in procmail runs.
> > > >
> > > > > So that raises the question: how does one configure mail (sendmail or
> > > > > otherwise) on a stock Fedora Core system so that ~User/.procmailrc
> > > > > will be processed for all User's on the system?
> > > >
> > > > ~user is expanded in a shell to the same thing as $HOME would be for
> > > > that user. Sendmail should, by default, use procmail for everyone
> > > > which should then process their .procmailrc but it will not trust
> > > > files where the permissions allow write access by others.
> > >
> > > Excellent. This insight has led to the real culprit: selinux.
> > > Disabling selinux leads to FC4 level behavior so it is a safe bet that
> > > a more stringent FC5 selinux setting is what is ailing me. Now,
> > > ideally, I should be able to google FC5, selinux and mail and get some
> > > insight. Not so. Anyone have a reference where I can learn what
> > > FC5 now expects from sendmail/procmail to make selinux happy? The
> > > entries in /var/log/messages are not exactly real informative:
> > >
> > > May 13 21:22:04 roamer kernel: audit(1147569724.815:39): avc: denied { search } for pid=26417 comm="procmail" name="log" dev=dm-0 ino=4128796 scontext=system_u:system_r:procmail_t:s0 tcontext=system_u:object_r:var_log_t:s0 tclass=dir
> > >
> > >
> > > -pmr
> > >
> > I am having the same problem with FC5 and selinux. My system worked
> > fine with FC4 but is failing with FC5. I am using procmail to store
> > spam in created directory ie /savedrwxr-xr-x root mail root:object_r:root_t .
> /home/$USER/Mail/spam. When I turn
> > selinux off I can get procmail to work perfectly, but when I turn
> > selinux back on it fails to be able to write in this directory. I know
> > very little about selinux and would appreciate some references as to
> > changes from FC4 to FC5 as well.
>
> The out-of-the-box selinux policy for FC5 was somewhat broken for
> procmail, particularly if you wanted to forward mail as an action.
>
> Paul, what log files are you trying to write, and what the the "adv:
> denial" messages you see in /var/log/messages when procmail tries to
> write to this log?
>
> Gregory, is /save/home/$USER the home directory for $USER?
> What's the output of:
> $ ls -laZ /save/home
>
> Paul.
>
>
Paul,
Thanks for your help. Is there a way to modify the procmail policy in
selinux?
The above directory is not the home directory of the user. When I
originally designed the software I created a directory system outside of
the /home, but $USER does represent the name of the user. Here is a
partial listing of ls -laZ /save/home
drwxr-xr-x root root root:object_r:root_t ..
drwxr-xr-x bkgrndch bkgrndch root:object_r:root_t bkgrndchk
drwxr-xr-x claire claire root:object_r:root_t claire
drwxr-xr-x clamav clamav root:object_r:root_t clamav
drwxr-xr-x greg greg root:object_r:root_t greg
drwxr-xr-x jesse jesse root:object_r:root_t jesse
drwxr-xr-x mail mail root:object_r:root_t lost
+found
drwxr-xr-x mailwoma mailwoma root:object_r:root_t mailwoman
drwxr-xr-x melissa melissa root:object_r:root_t melissa
Thanks again for your help!
Greg
