On Thu, 2008-02-14 at 10:16 -0800, Daniel B. Thurman wrote:
>
> On Wed, 2008-02-13 at 18:23 -0800, Daniel B. Thurman wrote:
> > In one of the Fedora CVS server setup, it says that if the
> > administrator wants to use a simple pserver remote string
> > such as:
> >
> > export CVSROOT=':pserver:<username>@<systemname>:/cvs'
> >
> > Then one has to:
> >
> > 1) /etc/xinetd.d/cvs:
> > server_args = -f --allow-root=/cvs pserver
> > 2) ln -s /var/cvs /cvs
> >
> > But the problem here is that SELinux has no context for
> > the symbolic link /cvs, therefore deny's access.
> >
> > I tried setting context for /cvs by:
> > 1) chcon -t cvs_data_t
> >
> > No dice. Does not work.
> >
> > To see if I can cvs login bypassing Selinux, I tried:
> > 1) setenforce 0
> > 2) cvs login (successfully)
> > 3) setenforce 1
> >
> > So, what can I do to get SElinux to authorize the /cvs symbolic link
> > access to /var/cvs?
> >
> > Thanks-
> > Dan
>
> Apologies to all. It turns out that my email spam system was blocking
> me from
> receiving email responses I was waiting for! Geez, I will have to add
> another
> TODO to my list.
>
> To Paul: Can you explain what you mean by: "maybe try a bind mount
> instead of a symlink?"
>
> To Stephen: "/sbin/ausearch -i -m AVC"
> type=SYSCALL msg=audit(02/13/2008 19:17:32.484:5097) : arch=i386
> syscall=open success=no exit=-13(Permission denied) a0=8faf660 a1=8000
> a2=1b6 a3=8fafa58 items=0 ppid=25427 pid=27015 auid=dant uid=root
> gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root
> tty=(none) comm=cvs exe=/usr/bin/cvs
> subj=system_u:system_r:cvs_t:s0-s0:c0.c1023 key=(null)
> type=AVC msg=audit(02/13/2008 19:17:32.484:5097) : avc: denied
> { read } for pid=27015 comm=cvs name=cvs dev=sdb5 ino=49172
> scontext=system_u:system_r:cvs_t:s0-s0:c0.c1023
> tcontext=system_u:object_r:default_t:s0 tclass=lnk_file
semanage fcontext -a -t cvs_data_t "/cvs"
/sbin/restorecon -v /cvs
--
Stephen Smalley
National Security Agency
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