Re: ng_ip_input ?

On Sat, Aug 19, 2006 at 07:05:49PM +0530, Rajkumar S wrote:
On 8/19/06, Ruslan Ermilov <ru@xxxxxxxxxxx> wrote:
On Sat, Aug 19, 2006 at 05:44:39PM +0530, Rajkumar S wrote:
The man page states

DESCRIPTION
The ip_input node type takes all received packets and queues them
into
the IP in input processing subsystem.

It does this simple thing:

netisr_dispatch(NETISR_IP, m);

which means putting the mbuf pointed to by "m" into the IP
input queue and scheduling a call to ip_input().

Thanks a lot for your answer.

So this is used to inject packets into the ip stack?

Yes.

also, normally
packets received from ethernet is passed into the same point, right?

Normally, yes. By sys/net/if_ethersubr.c::ether_demux().

Any points to docs to read about a packet's traversal in FreeBSD ip
stack? (especially wrt pf)

What level of detalization do you need? Filters, such as pf(4), are
embedded into the normal processing using the pfil(9) API.


Cheers,
--
Ruslan Ermilov
ru@xxxxxxxxxxx
FreeBSD committer

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