IPTables code

priyadarshan · 03-30-2009, 08:33 AM

I am new to linux....... I am proficient now in C and I know how to play with IPTables too............. What I am interested is I want to view the IPTables code........ Is it possible? How?

fpmurphy · 03-30-2009, 08:48 AM

Go to the Netfilter project page (http://www.netfilter.org/) and download the source code.

priyadarshan · 03-30-2009, 08:54 AM

I have already downloaded it and installed it too....... I wanna see it in u know... C like program or so......... Is it possible?

reptiler · 03-30-2009, 09:06 AM

You want the source-code, right?
That's what you get on the site fpmurphy has referred you to.

priyadarshan · 03-30-2009, 09:16 AM

OK I have downloaded it but Can I know that in which file should I view?

reptiler · 03-30-2009, 09:18 AM

I thought you were proficient in C. Shouldn't you then be able to work with the code and find what you want to find?
Especially since we don't know what exactly you are looking for.

priyadarshan · 03-30-2009, 09:23 AM

Sir I just wanna know that In which file should I peep for C code.......

I mean $ pico <what should be here???>

Only then and then I can see the code in editor......

There are lot of files in package.....

reptiler · 03-30-2009, 09:29 AM

That's right, and many of those files (you may recognize the extensions .c and .h) actually belong to what will finally end up as IPTables and its modules.

The actual binary iptables will surely be created from iptables.c and/or iptables-standalone.c. But I am equally sure that to understand the code you will need to study the includes libraries libipq and libiptc.
Possibly, and quite probably, also other files are involved.