Re: adding data fields to netfilter_conntrack / conntrack events

[Jarek Poplawski <jarkao2@o2.pl>]

On 23-08-2006 00:41, Stuart Zilm wrote:
> I'm trying to add some more data to that which gets passed across the 
> netlink socket for conntrack events, but can't seem to get the data from 
> the kernel to arrive in userspace.
> 
> I've added the following to net/ipv4/netfilter/ip_conntrack_netlink.c:
> 
> static inline int
> ctnetlink_dump_foo(struct sk_buff *skb, const struct ip_conntrack *ct)
> {
>     char dummy[sizeof(struct timeval)] = {0xde, 0xad, 0xde, 0xad, 0xde, 
> 0xad, 0xde, 0xad};
> 
>     NFA_PUT(skb, CTA_FOO, sizeof(struct timeval), dummy);
>     
>     return 0;
> 
> nfattr_failure:
>         printk("<6>ctnetlink_dump_foo: nfattr_failure\n");
>         return -1;
> }
> 
> // note that CTA_FOO = 13

I didn't check this but: did you see this change status 
function's processing with CTA_NAT_DST (13)?

Jarek P.