RE: Netfilter Packet Reinjection

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> -----Original Message-----
> Em 23 de março de 2012 19:11, Jeff Haran <jharan@xxxxxxxxxxxxxx>
> escreveu:
> >> -----Original Message-----
> >> From: netfilter-devel-owner@xxxxxxxxxxxxxxx [mailto:netfilter-devel-
> >> owner@xxxxxxxxxxxxxxx] On Behalf Of Fr3DBr
> >> Sent: Friday, March 23, 2012 2:59 PM
> >> To: netfilter-devel@xxxxxxxxxxxxxxx
> >> Subject: Netfilter Packet Reinjection
> >>
> >> Hello,
> >>
> >> I'm writting a module to deal with certain packets, and i wanted to
> >> DROP then initially, store it, and at an later moment, reinject it
> >> before the routing decision.
> >>
> >> What would be the method i could call, to place the packet again in
> >> the stack at this point ?!
> >>
> >> Thanks,
> >>
> >> Fred
> >
> > You probably want to take a look at nf_reinject() in
> net/netfilter/nf_queue.c.
> >
> > Jeff Haran
> From: Fr3DBr [mailto:fr3dbr@xxxxxxxxx]
> Sent: Friday, March 23, 2012 3:12 PM
> To: Jeff Haran
> Cc: netfilter-devel@xxxxxxxxxxxxxxx
> Subject: Re: Netfilter Packet Reinjection
> I did, but i didn't wanted to implement a queue, but just do what i
> said directly !
>

Fixing the top post.

I assume by "I didn't wanted to implement a queue", you meant you didn't want to use an NF_QUEUE to put the packets to user space.

Fine. Nobody said you had to use a user space queue. But if you want to hang onto packets for later re-injection, calling nf_reinject() is one way to do it.




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