Label /var/run/sympa(/.*)? httpd_var_run_t

[BenjaminLefoul]

As per sympa-community/sympa#799

/var/run/sympa(/.*)? requires httpd_var_run_t SELinux label

This is for the mailing list manager "sympa" currently in Fedora and EPEL.

[zpytela]

@BenjaminLefoul, this commit as such looks good, even a file transition is not needed if the runtime files are only managed by httpd. However, it looks sympa has a few services; without a particular context for the executables, all of the services run in the unconfined_service_t domain. Did you think about confining the services to improve security of the package?

In particular, the following permission is unlikely to be allowed in selinux-policy:

allow httpd_t unconfined_service_t:unix_stream_socket connectto;

[BenjaminLefoul]

Thanks for that quick reply @zpytela

Yes we need to set the contexts on the executable sympa files.
Note however that that permission is not needed on RHEL8 (which I admit is my main concern right now). I assume this is because RHEL8 has the following permission and Fedora doesn't:

allow domain unconfined_service_t:unix_stream_socket connectto;

...but I am not sure, there may be another reason?