only allow 1 port for listening

[Forrest Taylor]

On Wed, 2007-08-08 at 11:40 -0400, Mark wrote:
> I am new to writing policies and have been reading the reference
> policy files.  I wrote a simple TCP server that listens on a port for
> connections.  I would like to write a policy that will only allow my
> program to bind to a specific port(9999).  I looked at the reference
> policy and see that the ports that programs are allowed to use is in
> policy/modules/kernel/corenetwork.te.  My questions is, can I specify
> the port in my programs type enforcement file so that I can make a
> module instead of listing this in the kernel policy?  If so, what
> would the syntax be? 

portcon is only valid in the base module, not a normal loadable module.
The command to generate the port entry for the policy is semanage.  It
should look something like the following:

semanage port -a -t my_port_t -p tcp 9999

Forrest
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