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([2a01:e0a:b41:c160:d023:bfe9:4cda:fa70]) by smtp.gmail.com with ESMTPSA id e4-20020a5d65c4000000b00228cd9f6349sm9500020wrw.106.2022.09.07.08.52.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 07 Sep 2022 08:52:14 -0700 (PDT) Message-ID: <953e16f5-80bd-2098-bd7f-5f4fd74ceaaa@6wind.com> Date: Wed, 7 Sep 2022 17:52:13 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Reply-To: nicolas.dichtel@6wind.com Subject: Re: [PATCH nf-next] netfilter: nf_tables: add ebpf expression Content-Language: en-US To: Alexei Starovoitov Cc: Florian Westphal , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , "David S. Miller" , Jakub Kicinski , Network Development , =?UTF-8?Q?Toke_H=c3=b8iland-J=c3=b8rgensen?= , netfilter-devel , bpf References: <20220831101617.22329-1-fw@strlen.de> <87v8q84nlq.fsf@toke.dk> <20220831125608.GA8153@breakpoint.cc> <87o7w04jjb.fsf@toke.dk> <20220831135757.GC8153@breakpoint.cc> <87ilm84goh.fsf@toke.dk> <20220831152624.GA15107@breakpoint.cc> <20220831155341.GC15107@breakpoint.cc> <20220831215737.GE15107@breakpoint.cc> From: Nicolas Dichtel Organization: 6WIND In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Le 07/09/2022 à 05:04, Alexei Starovoitov a écrit : > On Mon, Sep 5, 2022 at 11:57 PM Nicolas Dichtel > wrote: >> >> >> Le 31/08/2022 à 23:57, Florian Westphal a écrit : >>> Alexei Starovoitov wrote: >>>>> This helps gradually moving towards move epbf for those that >>>>> still heavily rely on the classic forwarding path. >>>> >>>> No one is using it. >>>> If it was, we would have seen at least one bug report over >>>> all these years. We've seen none. >>> >>> Err, it IS used, else I would not have sent this patch. >>> >>>> very reasonable early on and turned out to be useless with >>>> zero users. >>>> BPF_PROG_TYPE_SCHED_ACT and BPF_PROG_TYPE_LWT* >>>> are in this category. >>> >>> I doubt it had 0 users. Those users probably moved to something >>> better? >> We are using BPF_PROG_TYPE_SCHED_ACT to perform custom encapsulations. >> What could we used to replace that? > > SCHED_CLS. It has all of the features of cls and act combined. Indeed, thanks.