lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Mon, 14 Sep 2020 14:00:47 -0700
From:   Song Liu <>
To:     Nicolas Rybowski <>
Cc:     Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Martin KaFai Lau <>,
        Song Liu <>, Yonghong Song <>,
        Andrii Nakryiko <>,
        John Fastabend <>,
        KP Singh <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Mat Martineau <>,
        Matthieu Baerts <>,
        open list <>,
        Networking <>, bpf <>,
Subject: Re: [PATCH bpf-next v2 3/5] bpf: add 'bpf_mptcp_sock' structure and helper

On Fri, Sep 11, 2020 at 8:15 AM Nicolas Rybowski
<> wrote:
> In order to precisely identify the parent MPTCP connection of a subflow,
> it is required to access the mptcp_sock's token which uniquely identify a
> MPTCP connection.
> This patch adds a new structure 'bpf_mptcp_sock' exposing the 'token' field
> of the 'mptcp_sock' extracted from a subflow's 'tcp_sock'. It also adds the
> declaration of a new BPF helper of the same name to expose the newly
> defined structure in the userspace BPF API.
> This is the foundation to expose more MPTCP-specific fields through BPF.
> Currently, it is limited to the field 'token' of the msk but it is
> easily extensible.
> Acked-by: Matthieu Baerts <>
> Acked-by: Mat Martineau <>
> Signed-off-by: Nicolas Rybowski <>

Acked-by: Song Liu <>

Powered by blists - more mailing lists