Question about kernal-native L4 mode

[Okabe-Rintarou-0]

Please provide an in-depth description of the question you have:
In kernal-native L4 mode, we use cgroup/connect4, it can hook the tcp connection. But what hook should we use for tcp close? Why don't we use sockops like L7 mode?
What do you think about this question?:

Environment:

• Kmesh version:
• Others:

[Okabe-Rintarou-0]

cc @hzxuzhonghu @lec-bit

[hzxuzhonghu]

what do you want to do when tcp close? We have sockops hookpoint in bpf/kmesh/ads/sockops.c

[Okabe-Rintarou-0]

https://github.com/kmesh-net/kmesh/blob/50dafa8787c4b1f517f245016b44e31ecf191630/bpf/kmesh/bpf2go/bpf2go.go#L20C1-L25C1

we don't use sockops in non-enhanced mode, right? I need to maintain the connection number of a cluster

[hzxuzhonghu]

Yeah, it does not use sockops in non-enhanced mode. I doubt there is no fake connect in non enhanced mode. So how could itgoes into cluster_manager.

maybe some others can shed light on it

[hzxuzhonghu]

@Okabe-Rintarou-0 I have consulted @supercharge-xsy , we believe you can turn on sockops for non-enhanced kernel, and keep in mind you also need to update the bpf loader.

[Okabe-Rintarou-0]

@Okabe-Rintarou-0 I have consulted @supercharge-xsy , we believe you can turn on sockops for non-enhanced kernel, and keep in mind you also need to update the bpf loader.

i see. What about cgroup hooks? Should we keep them?

[hzxuzhonghu]

cgroup/connect is useful