Take a look at Google maps, at
Disneyland Park. Go to the satellite view. You can see the crosswalk on Harbor-- it crosses on the south side of the entrance. Follow the walkway up and you can see the green tents at the top of the drive. Those are the security tents. Just beyond them you can see 4 irregularly shaped buildings-- those are ticket kiosks, where people who are buying their tickets that day go. Assuming you will have your tickets or vouchers already, you'll go right up to the gates. Hope that helps!