I think it's much simpler to use than tc-filter, BPF or even DSCP bits.
Manipulating DSCP bits seems the simplest of the currently available mechanisms
to classify traffic. Even in this case, fwmarks are essentially simpler.
E.g. if you want to classify outgoing traffic on the LAN interface:
with
> How unpopular would the idea of having cake look at skb->mark directly be?
loving it
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Kevin Darbyshire-Bryant writes:
> How unpopular would the idea of having cake look at skb->mark directly be?
>
> https://github.com/ldir-EDB0/sch_cake/commit/64d0e6ac9368a271221db888ab91a367fcd37ae1
>
> https://github.com/ldir-EDB0/tc-adv/commit/4f16ae5d588d44f8a5c83fe2f2b7dcad97843cbc
Hmm, not
How unpopular would the idea of having cake look at skb->mark directly be?
https://github.com/ldir-EDB0/sch_cake/commit/64d0e6ac9368a271221db888ab91a367fcd37ae1
https://github.com/ldir-EDB0/tc-adv/commit/4f16ae5d588d44f8a5c83fe2f2b7dcad97843cbc
I did the equivalent in eBPF here