Re: [tcpdump-workers]

["Amine Mustapha Smaali" <mustapha.smaali () setcom eu>]

Hi Harley,

I'm trying to use internal stack functions. I found that the function
netisr_queue() is delivering packets to IP layer. When I'm calling this
function in my C program the compiler does not know this function even I
include netisr.h. It seems that it needs the library to be included during
the compilation but I don't know what is the lib file including the function
netisr_queue().

Do you have any idea on how to inject the packet into local stack?

Thanks and BRs,
Mustapha

-----Original Message-----
From: tcpdump-workers-owner () lists tcpdump org
[mailto:tcpdump-workers-owner () lists tcpdump org]On Behalf Of Harley
Stenzel
Sent: Montag, 24. September 2007 18:17
To: tcpdump-workers () lists tcpdump org
Subject: Re: [tcpdump-workers]


On 9/24/07, Amine Mustapha Smaali <mustapha.smaali () setcom eu> wrote:
> Hi All,
>
> I'm a new member in this maling list and I'm pleased to join this list.
>
> So, I have one question concerning the libpcap. I wrote a C code to wait
for
> specific ethernet frames. The frames received contains TCP/IP packets
> encapsulated in ESP packets. Those packets are destinated to the machine
> (FreeBSD machine with more than 1 IP address) capting the frames. My
> question is how to pass the TCP/IP packets received to the TCP/IP stack of
> the system? In other word, I have process running on the system which
> creates a TCP socket and which is waiting for those TCP/IP packets?

This is not something that libpcap can be used for.

Look at raw sockets or tun/tap sorts to do the injection into local stack.

 --Harley
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