What is responsible for creating file forward.c?

[sh11]

I install openwrt source code then I compiled it. A forward.c was created after compiling source code, so if can someone tell me how this file create from which file ?

[hnyman]

Likely the same answers as you have been given in

.C file for packet sniffer(socket)

Brothers, Can any one help me to find the .c file written in c language that responsible for packet socket or packet capture ? Can any one tell me the path of this file ? (.C file)

Location of the netfilter tables

Can any one tell me the location files responsible for creation of three netfilter tables: filter, nat, mangle in the openwrt source code ?

NAT and FILTER

I need your help. I downloaded the source code of openwrt from github, but I want to change the configuration of NATING and FILTERING(accept/drop) , but I didn't find the path of these files in source code. Can any one tell me the path of nat and filter configuration files in source code? Thanks.

Can I edit build_dir after compilation?

I download the source code of openwrt using git clone, then I run make menuconfig and choose my router then I run make. After the compilation, a build_dir folder appear which contain netfilter that has .c files about networking like iptables, nat, filter …etc. My question is: I want to edit the .c files in build_dir then to install the .bin on the router. So, Can I edit these files and how I to install the newest editing on the router? Should I recompile again ?

Without knowing the directory where you found the forward.c file, it is likely from the netfilter component in the Linux kernel. Alternatively, if you made a typo (forwards.c) and that file was found in the firewall build directory, the source is from the Openwrt firewall. https://git.openwrt.org/?p=project/firewall3.git;a=summary