Re: Sending A Separate Packet Out The TX Path In XDP

Hey Toke,


That makes sense! I'm going to look into using AF_XDP sockets to achieve 
this.


As always, thank you for all your help!


On 4/27/2021 3:14 PM, Toke Høiland-Jørgensen wrote:
> Christian Deacon <[email protected]> writes:
>
>> Hey everyone,
>>
>>
>> I had a quick question. Is it possible to send a packet separate from
>> the original out of the TX path within an XDP program? I would imagine
>> this isn't possible, but I just wanted to make sure.
> Not from within XDP, no...
>
>> If this isn't possible within the XDP program itself, is it possible to
>> do this with AF_XDP sockets or can AF_XDP sockets only handle packets
>> redirected via the fast-path XDP creates? I wasn't sure if I'd need to
>> make another Linux socket inside of the AF_XDP program in this case to
>> send a separate packet out.
> ...but AF_XDP sockets can send whatever you want :)
>
> -Toke
>