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Problem in registering new netfilter target module

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Old 11-09-2005
Problem in registering new netfilter target module
Friends I'm facing a big problem trying to extend the netfilter. Somone please help me with your quick reply (any hint) as I've to meet a deadline.

My problem is that I've written a new netfilter target module and its corresponding userspace program for iptables to change the packet type of a packet. I compiled the iptables and kernel without any error and installed this new kernel (with newly compiled parameters) in my boot partition.

Next when I booted into this kernel and tried using this target it gives error "invalid argument" which I think is coming because the target module is not geting loaded (as on failure it returns EINVAL).

Now can anyone tell me what may b the problem.
I think I can summarise my problem as what can b pozbl. reasons for which any kernel module not get registered.
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LEARN ABOUT DEBIAN

ulogd

ULOGD(8)						      System Manager's Manual							  ULOGD(8)

NAME

       ulogd - netfilter/iptables ULOG daemon

SYNOPSIS

       ulogd [options]

DESCRIPTION

       ulogd  connects to the netlink device of the Linux kernel and reads messages from the netfilter that get queued with the iptables ULOG tar-
       get. For this to work you have to compile the ULOG target into your kernel or load the respective module.

       The received messages can be logged into files or into a mySQL or PostgreSQL database.

OPTIONS

       -d, --daemon
	      fork ulogd into background (start as daemon)

       -c <filename>, --configfile <filename>
	      use <filename> as configuration file instead of /etc/ulogd.conf

       -h, --help
	      show usage information

       -V, --version
	      show version information and copyright

FILES

       /etc/ulogd.conf
       /var/log/ulog/ulogd.log

SEE ALSO

       There is more documentation about the daemon and the database plugins (including examples) in the directories
       /usr/share/doc/ulogd
       /usr/share/doc/ulogd-mysql and
       /usr/share/doc/ulogd-pgsql

AUTHOR

       This manual page was written by Joerg Wendland <joergland@debian.org>, for the Debian GNU/Linux system (but may be used by others).

Linux Netfilter 						 November 05, 2002							  ULOGD(8)