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A question for Rllibby, maybe some delphi experts can answer

Posted on 2010-11-12
Medium Priority
Last Modified: 2012-05-10
About your firewall code(S), that blocks ip address, web address

The way I test on windows XP?, it's fine.
I test on Windows 7, it's not good.

iS there a WAY to use the firewall code in windows 7?

And 1 thing I've see in the code, after blocking a few ip address or web address?, it can't unblock.  (the firewall code(s) that you have distributed has no unblock procedure, isn't it?)

Question by:systan
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LVL 26

Expert Comment

by:Russell Libby
ID: 34127890
Sorry, not really sure what code you are referring to. There is no code distribution on my site for anything "firewall" related, though I have posted code here regarding IP usage/blocking. If you are referring to code here on EE, please post a link to it. Also keep in mind that anything I wrote in Delphi was done years ago, and before Win7. If its not working now, then I would suggest adding error checking into the code to determine exactly what API calls are failing.


LVL 14

Author Comment

ID: 34128124

Does this code don't do unblock? it only blocks? y/n?

And also it can't be used in windows 7?
But is there a possible way to use that code for windows 7?
Would you share some steps if it is possible.

LVL 26

Expert Comment

by:Russell Libby
ID: 34128353
1.) The code as written does not handle unblocking. As stated in the original Q, I provided source to add IP filters, but recommended that it be wrapped in a class to allow unblocking, additional functionality, etc. The outbound handle(s) can be obtained in a call to PfAddFiltersToInterface, and then later passed to PfRemoveFilterHandles to remove them.

2.) No, it can't be used in Vista/Win7. This API is deprecated (notice I wrote this 6 1/2 years ago) and is now replaced with the Windows Filtering Platform API:


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LVL 14

Author Comment

ID: 34129499
What are the possible c headers that I WILL convert to Delphi using windows 7 Filtering Platform APi?, just like unit [fltdefs] in windows xp/2003.
LVL 26

Accepted Solution

Russell Libby earned 500 total points
ID: 34129578


LVL 14

Author Closing Comment

ID: 34130419
Thanks llibby

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