netdev - Re: [RFC PATCH 4/5] net: filter: run cgroup eBPF programs

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Message-ID: <d38eb8a1-1b36-b8cf-a60e-266afe4ecc77@zonque.org>
Date:	Wed, 17 Aug 2016 16:36:02 +0200
From:	Daniel Mack <daniel@...que.org>
To:	Tejun Heo <htejun@...com>
Cc:	daniel@...earbox.net, ast@...com, davem@...emloft.net,
	kafai@...com, fw@...len.de, pablo@...filter.org, harald@...hat.com,
	netdev@...r.kernel.org
Subject: Re: [RFC PATCH 4/5] net: filter: run cgroup eBPF programs

On 08/17/2016 04:23 PM, Tejun Heo wrote:
> On Wed, Aug 17, 2016 at 04:00:47PM +0200, Daniel Mack wrote:
>> @@ -78,6 +116,12 @@ int sk_filter_trim_cap(struct sock *sk, struct sk_buff *skb, unsigned int cap)
>>  	if (skb_pfmemalloc(skb) && !sock_flag(sk, SOCK_MEMALLOC))
>>  		return -ENOMEM;
>>  
>> +#ifdef CONFIG_CGROUP_BPF
>> +	err = sk_filter_cgroup_bpf(sk, skb, BPF_ATTACH_TYPE_CGROUP_INGRESS);
>> +	if (err)
>> +		return err;
>> +#endif
> 
> Hmm... where does egress hook into?

As stated in the cover letter, that's an open question on my list.


Thanks,
Daniel