[This isn't strictly an XDP question, I'm using cls_bpf but I don't know of a better place to ask] Is there a way to calculate a hash of a struct or other data from within an eBPF program? I need to build a classifier that can hash a flow encapsulated in protocols like PPPoE or GTP-U. Basically like cls_flow's use of jhash2 but at a different offset. I looked at the helpers in bpf.h but don't see anything helpful there. Thanks.
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