Re: adding only port 1186 to mysqld connect

[Johnny Tan <linuxweb gmail com>]

Stephen Smalley wrote:
> > Then I tried:
> > semanage port -a -t mysqld_port_t -p tcp 1186
>
> What does semanage port -l | grep 1186 show afterward?

# semanage port -l | grep 1186
mysqld_port_t                  tcp      1186, 3306


> What do you mean by "didn't work", i.e. same avc message repeated
> afterward upon subsequent attempts to connect?

type=AVC msg=audit(1197324654.830:1482): avc:  denied  { 
name_connect } for  pid=20484 comm="mysqld" dest=54859 
scontext=root:system_r:mysqld_t:s0 
tcontext=system_u:object_r:port_t:s0 tclass=tcp_socket
type=SYSCALL msg=audit(1197324654.830:1482): arch=c000003e 
syscall=42 success=no exit=-13 a0=e a1=1972e194 a2=10 
a3=4504aedc items=0 ppid=20385 pid=20484 auid=0 uid=27 
gid=27 euid=27 suid=27 fsuid=27 egid=27 sgid=27 fsgid=27 
tty=pts1 comm="mysqld" exe="/usr/libexec/mysqld" 
subj=root:system_r:mysqld_t:s0 key=(null)


> The command should cause the port to be treated with that type for all
> subsequent permission checks, whether name_connect or name_bind.
>
> > But this didn't work either. I think this just allows mysqld 
> > to bind to port 1186. (Or maybe not. Because, even without 
> > this rule, it's still able to bind to 1186 on the management 
> > nodes. So maybe this means something else.)
> >
> >
> > How would I accomplish adding ONLY port 1186 to what mysqld 
> > can do a tcp connect to?
> >
> >
> > p.s. Does this patch:
> > http://www.redhat.com/archives/fedora-extras-commits/2007-November/msg00786.html
> >
> > ... do what I'm trying to accomplish? I see 1186 is added to 
> > the mysqld network ports.
> >
> > But either way, since it's a recent commit against Fedora, 
> > I'm guessing it will be some time before it gets into 
> > RHEL-5. Actaully, do these types of SELinux targeted-policy 
> > commits even get backported into RHEL? It's not really a 
> > security patch, as such.
> >
> > johnn
> >
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