linux-kernel - Re: pull-request: bpf-next 2023-12-18

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Message-ID: <20231218165513.24717ec1@kernel.org>
Date: Mon, 18 Dec 2023 16:55:13 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: torvalds@...uxfoundation.org
Cc: Alexei Starovoitov <alexei.starovoitov@...il.com>, davem@...emloft.net,
 edumazet@...gle.com, pabeni@...hat.com, daniel@...earbox.net,
 andrii@...nel.org, peterz@...radead.org, brauner@...nel.org,
 netdev@...r.kernel.org, bpf@...r.kernel.org, kernel-team@...com,
 linux-kernel@...r.kernel.org
Subject: Re: pull-request: bpf-next 2023-12-18

On Mon, 18 Dec 2023 16:05:20 -0800 Alexei Starovoitov wrote:
> 2) Introduce BPF token object, from Andrii Nakryiko.
> It adds an ability to delegate a subset of BPF features from privileged daemon
> (e.g., systemd) through special mount options for userns-bound BPF FS to a
> trusted unprivileged application. The design accommodates suggestions from
> Christian Brauner and Paul Moore.
> Example:
> $ sudo mkdir -p /sys/fs/bpf/token
> $ sudo mount -t bpf bpffs /sys/fs/bpf/token \
>              -o delegate_cmds=prog_load:MAP_CREATE \
>              -o delegate_progs=kprobe \
>              -o delegate_attachs=xdp

LGTM, but what do I know about file systems.. Adding LKML to the CC
list, if anyone has any late comments on the BPF token come forward
now, petty please?