Kurdish Iran is a very small part of Iran.
And how much of it do the rebels hold at present? The last Ive heard, very little.
And what war are they waging currently? Not much
Before NATO started bombing Libya (thus weakening the Libyan army), Libyan rebels have already taken over sizable parts of the country (notably the countrys second city, Benghazi), not to mention they represented more than a small ethnic minority (Kurds make ~7% of Irans population).