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i was wondering how you make a firewall in windows , do you enumrate all the process's in the task manager for winsock connect?, i know how to get a function pointer to connect inside ws2_32.dll but i dont know how to say when its being used , thanks if you can help
I'm pretty sure that it doesn't use that method. I do not know what method it DOES use, but I'm expecting it works sort of like a filter layer on the TCP/IP stack system.
This says article that it describes how it may work in several different layers - I only read the first half-page, and it seems to confirm my original answer.
NT Kernel Resources: Firewall For Windows
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Mats
Building Internet firewallsQuote:
Originally Posted by Anddos
I saw your firewall info request on the newsgroups. Check it. You'll find complete Windows firewall source code for your review.