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69e776e14e
This work adds a helper that can be used to adjust net room of an skb. The helper is generic and can be further extended in future. Main use case is for having a programmatic way to add/remove room to v4/v6 header options along with cls_bpf on egress and ingress hook of the data path. It reuses most of the infrastructure that we added for the bpf_skb_change_type() helper which can be used in nat64 translations. Similarly, the helper only takes care of adjusting the room so that related data is populated and csum adapted out of the BPF program using it. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sorayukii <sorayukii69@gmail.com> |
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| asm | ||
| asm-generic | ||
| linux | ||
| tools | ||
| uapi | ||