Matheus Salgueiro Castanho <matheus.castanho@xxxxxxxxxxx> writes: > Hi, > > I'd like to create a copy of a packet inside a BPF program, alter some > of its headers and redirect it and the original packet to different > interfaces, either on XDP or TC layers. > > By taking a look at the helpers list, I have the impression this is > not currently supported, but as things evolve rapidly in the BPF area, > I want to make sure I'm not overlooking anything. > > So, is there a way to do this today? You're quite right, there isn't. There's work in progress, though, which will eventually allow this (for XDP): https://lore.kernel.org/bpf/20200907082724.1721685-1-liuhangbin@xxxxxxxxx/ -Toke
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