Stuffed pumpkin with pork and rice

1 kg pork (including shoulder cap and bacon), cut into cubes 2 cups basmati rice (280 g) salt pepper 1 tbsp ground cinnamon 2 bay leaves 1 large orange pumpkin (or 2 smaller) ½ cup white wine 1 tbsp ground coriander olive oil for sautéing 1 onion, finely chopped 2 red mushrooms