Wireless capture portal(repost)(repost)

I own a Linksys WRT54GL. This is a wireless modem with Linux installed. There are several opensource implementations for this modem, so code is available. What I want to achieve is the following: - User connects to the (unsecure) wireless network. - User types in (example) "[login to view URL]" - User arrives at a website (pure HTML/images) of our company (with the possibility to enter a code somewhere) - Once the code is verified, the user can surf freely for the amount of time/MB the code was valid for. I searched a little around and Chillispot has about all the necessary features in it. But what I want you to do is to modify/rewrite Chillispot (C-code). Chillispot at this moment makes use of a Radius server to see who's allowed to use the router and who's not. I want to make it code-based. So somehow you need to be able to get codes via a simple way. Maybe surf to a password protected page which will take some parameters to allow us to modify the code (what I can think of immediately: time limited [= how long after a code has been entered it can be used], bytes limited [= maximum transfer limit], overal time limit [= when does the code stop working], MAC limit [= how much MAC addresses can be used for this code], ... For others: please advise). So the internal workings would be as follows: - Someone surfs to the wireless network - We redirect him to the embedded webserver with our companies webpage. - This someone calls us and asks us for a code. - We issue a code (webpage as described, returns a code which is easy to read/speak [watch out for one-L, zero-O, ...]). - When the person enters the code his MAC is saved and his session starts. - ... Now he can surf, FTP, VPN, ... whatever ... - After downloading a certain amount, or after a certain time his code expires and he is presented with the default webpage again. --- Please read the included PDF for more info ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows? (depending on the nature? of the deliverables): a)? For web sites or? other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software? installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Linux, C