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aabc / ipt-netflow

Netflow iptables module for Linux kernel (official)
https://github.com/aabc/ipt-netflow
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ipt-netflow in upstream linux kernel? #165

Closed taktv6 closed 3 years ago

taktv6 commented 3 years ago

Hi,

I have a question regarding this project: Are there or have there been any plans to contribute ipt-netflow to the upsteam Linux kernel via netdev ML? If there are no plans: What are the reasons? If it was rejected: What are the reasons? I'd really like to see this in vanilla Linux as it would make life a lot easier for many folks.

Thanks Oliver

aabc commented 3 years ago

In ~2008 upstream maintainers was reluctant to even consider pure netflow v5 implementation, because they thought netflow v5 is not preferable in compare to IPFIX, and someone will implement IPFIX soon, and packet rates was low and they also thought solutions like NFLOG with user-space implementations would be enough. That was in 2008, I am not really remember well all details. After that we decided it would work good enough as independent module and we go with this decision.

Perhaps, there is not much user-base desire for netflow/ipfix exporter to be in the mainline kernel or it would be there long ago (not necessarily this implementation).

taktv6 commented 3 years ago

These days it seems there is more focus on performance and enabling NFV like usage of linux. Would you mind if I'd check with netdev ML if they would be interested in a patch and me deriving maybe a pure IPFIX patch based on your module? Of course I'd make sure your name and a reference to this project would be in the kernel source.

aabc commented 3 years ago

@taktv6 Of course you can ask. Not even need to ask my permission for the code reuse, since this is GPL licensed.

taktv6 commented 3 years ago

Sure. License wise you're absolutely right. I just want to be polite :)

Thanks!

aabc commented 3 years ago

Can you post here link to netdev discussion if it will happen?