[ovs-discuss] DP_Packet Payload Modification

[Gregory Rose]

On 6/4/2020 10:06 AM, Luca Mancini wrote:
> Hello,
> This is sort of a repost from my previous question about creating a custom udp payload.
> I figured I could just clone a received udp payload and modify its payload, do you think this is possible?  I tried creating a packet from 0 but I just couldn’t manage to do it.
> 
> I’m guessing I could do something along the lines of dp_packet_clone(), dp_packet_l4() to get the pointer to the UDP header and then overwrite it with memcpy?
> Any help is really appreciated, Thanks!
> 
> Luca Mancini

Luca,

I'm having a hard time understanding this.  If you want to generate a
UDP packet with custom payload why not just use scapy or some other such
tool?

- Greg