Re: how ip header added in ip_bulid_xmit function?

[linux lover <linux_lover2004@xxxxxxxxx>]

hello,

> A packet comes from TCP layer to IP layer through
> function call 
> tp->af_specific->queue_xmit() (in
> tcp_output.c:tcp_transmit_skb() ). For 
> IP this function is nothing but ip_queue_xmit()
> defined in ip_output.c.
> 
   then why ip_build_xmit and ip_build_xmit_slow used?
i think in case of ICMP packet control in icmp.c
alwayes goes to ip_build_xmit?


regards,
linux_lover


        
                
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