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extend packet #374
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oh, I got it ! |
How you did that? I have a similar problem in #376 |
You can use helper calls like |
sorry that I don't check my email timely ; I just use the helpers "bpf_xdp_adjust_tail" This function adjusts the position of the packet tail; also "bpf_xdp_adjust_head" adjust the position of the packet header; This is used by a blogger when adding a timestamp to the tail, but I can't find that post. |
ooohhh , just the xdp-tutorial/experiment01-traigrow ; hhhhh |
hi,everone ! I would like to ask if there is a way to use XDP to extend the packet, such as adding a new field, and ensure that the end data is not lost.
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