Firewall coding in c++ on linux ?

[sree]

Hi,
I am a newbie here and also to c++.
I am working on linux,with programming mainly on C and areas of interest being Firewall & IPS.
I have some doubts,would be really grateful if anyone can help me.
1.                   Can we create a firewall code in C++?
2.                    "Can we prepare a kernel module in C++ on linux ?"
3.                    What are the applications of C++ on linux?


Thanks
Sree.

[C-Man]

Who is We ?
1. linux already has a firewall it's called iptables also netfilter ( http://www.netfilter.org/ ) check them out , source is available , so yes it's possible
2. Sure ?
3. Do you you mean compilers ? ide's ?  g++/gcc ofcourse and as for ide's Code::Blocks , KDevelop, Eclipse CDT and so on

[sree]

We is me.. 
Hey Thanks for the reply.
1)Regd Firewall....I am sorry I should have mentioned that I am talking abt a module above linux firewall,where in it takes the packet from the netfilter hooks,checks the packets,applies some  user defined policies and then allows the traffic to pass through.
So my concern here is ...can I do design these type of modules in c++.
2)So its possible to create a kernel module in c++..Can you tell me where i can find more information on this?
which is a better way to design kernel modules c or c++?
3)When i mean applications,I  meant
Where can I use c++  programming on linux,is it used for similar purposes like designing modules ( Firewall ,Vpn ,IDS over linux )or linux development or some other things like Games etc.

Thanks
Sree...

[C-Man]

ofcourse it is possible