Hi all,

I tried to do a Make on the Kernel AODV source codes version 2.2.2 which uses netfilter.h in its codes but it gives compilation errors as it can't find struct type defined as "nf_hook_ops" in usr/include/linux/netfilter.h

Am I missing something here? why is the netfilter.h different from what was at this site Linux/include/linux/netfilter.h ??? how do I get the latest version of the header files? For your information, I'm running Ubuntu 7.10 with the latest Linux kernel version 2.6.22 and has perform all available updates. anyone using Ubuntu 7.10 having the same netfiler.h file as mine?

Thanks alot for your help.

I think you are missing the kernel source, use apt-get or synaptic to install the 2.6.22 kernel headers and try again.

Hi,

Thanks for ur reply.

I did install the linux-libc-dev from Synaptic package manager. It says:

Linux Kernel Headers for development
This package provides headers from the Linux kernel. These headers are used by the installed headers for GNU glibc and other system libraries.

But my compile still fails...i wonder if this is the package you are talking about?

Below is a copy of my netfilter.h which is shorter than what is at the site I listed above, can I check if ur header file contain the same code?

--------------------------------------------------------------------------------
#ifndef __LINUX_NETFILTER_H
#define __LINUX_NETFILTER_H


/* Responses from hook functions. */
#define NF_DROP 0
#define NF_ACCEPT 1
#define NF_STOLEN 2
#define NF_QUEUE 3
#define NF_REPEAT 4
#define NF_STOP 5
#define NF_MAX_VERDICT NF_STOP

/* we overload the higher bits for encoding auxiliary data such as the queue
* number. Not nice, but better than additional function arguments. */
#define NF_VERDICT_MASK 0x0000ffff
#define NF_VERDICT_BITS 16

#define NF_VERDICT_QMASK 0xffff0000
#define NF_VERDICT_QBITS 16

#define NF_QUEUE_NR(x) (((x << NF_VERDICT_QBITS) & NF_VERDICT_QMASK) | NF_QUEUE)

/* only for userspace compatibility */
/* Generic cache responses from hook functions.
<= 0x2000 is used for protocol-flags. */
#define NFC_UNKNOWN 0x4000
#define NFC_ALTERED 0x8000

#endif /*__LINUX_NETFILTER_H*/
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