raw socket and config_filter



hi,
im doin a project on dhcp client-server setup. i have to use raw sockets in the code for this. the call pf_packet, sock_raw as the first two arguments. the code compiles but when i try to start the dhcp client, i get an error saying "make sure config_packet and config_filter is enabled". i tried to build the kernel using a source tree. i found config_packet=y but didnt find config_filter. so i added a line config_filter=y. i got the foll error
heres a full snapshot of the error :
bash-3.1# make
hostld scripts/kconfig/conf
scripts/kconfig/conf -s arch/i386/kconfig
.config:384:warning: trying to assign nonexistent symbol filter
#
# configuration written to .config
#
chk include/linux/version.h
upd include/linux/version.h
chk include/linux/utsrelease.h
upd include/linux/utsrelease.h
symlink include/asm -> include/asm-i386
ln: creating symbolic link `include/asm' to `asm-i386': operation not permitted
make: *** [include/asm] error 1
bash-3.1#
how else can i add it? is there ne other way out. im using fedora 6 with 2.6.20 source tree.


pls help

config_filter has been removed in kernel 2.6.x. your programs will need to be updated to use another mechanism to compile on a 2.6 kernel, or fallback to use kernel 2.4 if you absolutely want it.

the closest substitute:
http://www.netfilter.org/projects/l...ueue/index.html

hi
is there ne other way i can use the foll socket call in kernel 2.6.18 without getting the error message saying "make sure config_packet and config_filter is enabled in the kernel" :
sock = socket(pf_packet, sock_raw, htons((short)eth_p_all)

quote:
originally posted by yannifan
im doin a project on dhcp client-server setup. i have to use raw sockets in the code for this.



is this an educational project and you are supposed to be on the receiving end?