From: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> Date: Wed, 12 Apr 2017 16:27:34 +0200 > This works. An example BPF program is here: > https://p.sipsolutions.net/ca32264f2b705e5e.txt ... > One thing I'm not so sure about is the usage of __sk_buff. ... > Instead it may make more sense to just have a "wifi_info(skb, info)" > function you can call, e.g. with a structure that has various fields > and flags to see which you care about. I would advise against this, let the parsing part use __sk_buff and therefore have maximum flexibility. You really cannot predict the future, so in my opinion it might be unwise to constrain at this point.
