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Message-ID: <20210611212348.qnwkyvmpqar3qwjr@apollo>
Date: Sat, 12 Jun 2021 02:53:48 +0530
From: Kumar Kartikeya Dwivedi <memxor@...il.com>
To: Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc: bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <kafai@...com>,
Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Jesper Dangaard Brouer <brouer@...hat.com>,
Toke Høiland-Jørgensen <toke@...hat.com>,
Shaun Crampton <shaun@...era.io>,
Networking <netdev@...r.kernel.org>
Subject: Re: [PATCH bpf-next v7 0/3] Add TC-BPF API
On Sat, Jun 12, 2021 at 02:28:09AM IST, Andrii Nakryiko wrote:
> On Fri, Jun 11, 2021 at 1:47 PM Kumar Kartikeya Dwivedi
> <memxor@...il.com> wrote:
> >
> > On Sat, Jun 12, 2021 at 01:31:56AM IST, Andrii Nakryiko wrote:
> > > On Wed, May 12, 2021 at 3:35 AM Kumar Kartikeya Dwivedi
> > > <memxor@...il.com> wrote:
> > > >
> > > > This is the seventh version of the TC-BPF series.
> > > >
> > > > It adds a simple API that uses netlink to attach the tc filter and its bpf
> > > > classifier program. Currently, a user needs to shell out to the tc command line
> > > > to be able to create filters and attach SCHED_CLS programs as classifiers. With
> > > > the help of this API, it will be possible to use libbpf for doing all parts of
> > > > bpf program setup and attach.
> > > >
> > > > Changelog contains details of patchset evolution.
> > > >
> > > > In an effort to keep discussion focused, this series doesn't have the high level
> > > > TC-BPF API. It was clear that there is a need for a bpf_link API in the kernel,
> > > > hence that will be submitted as a separate patchset based on this.
> > > >
> > > > The individual commit messages contain more details, and also a brief summary of
> > > > the API.
> > > >
> > > > Changelog:
> > > > ----------
> > >
> > > Hey Kartikeya,
> > >
> > > There were few issues flagged by Coverity after I synced libbpf to
> > > Github. A bunch of them are netlink.c-related. Could you please take a
> > > look and see if they are false positives or something that we can
> > > actually fix? See links to the issues below. Thanks!
> > >
> > > [0] https://scan3.coverity.com/reports.htm#v40547/p11903/fileInstanceId=53874109&defectInstanceId=10901199&mergedDefectId=141815
> > > [1] https://scan3.coverity.com/reports.htm#v40547/p11903/fileInstanceId=53874109&defectInstanceId=10901193&mergedDefectId=322806
> > > [2] https://scan3.coverity.com/reports.htm#v40547/p11903/fileInstanceId=53874109&defectInstanceId=10901197&mergedDefectId=322807
> > > [3] https://scan3.coverity.com/reports.htm#v40547/p11903/fileInstanceId=53874109&defectInstanceId=10901195&mergedDefectId=322808
> > >
> >
> > Hi Andrii,
> >
> > These links don't work for me (I get a timeout). Would you know why? Is there
> > some other link where I can look at them?
> >
>
> Sorry, I don't know any other way to share them.
> https://scan3.coverity.com/reports.htm#v40547/p11903 should show all
> libbpf issues. Maybe try creating an account with coverity.com?..
>
Thanks, that helped. I now see 401 Unauthorized, so I sent an approval request.
--
Kartikeya
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