netdev - Re: [PATCH bpf-next v5 6/9] bpftool: Add support for cgroup unix socket address hooks

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Date: Mon, 25 Sep 2023 13:45:49 +0100
From: Quentin Monnet <quentin@...valent.com>
To: Daan De Meyer <daan.j.demeyer@...il.com>, bpf@...r.kernel.org
Cc: martin.lau@...ux.dev, kernel-team@...a.com, netdev@...r.kernel.org
Subject: Re: [PATCH bpf-next v5 6/9] bpftool: Add support for cgroup unix
 socket address hooks

On 21/09/2023 13:09, Daan De Meyer wrote:
> Add the necessary plumbing to hook up the new cgroup unix sockaddr
> hooks into bpftool.
> 
> Signed-off-by: Daan De Meyer <daan.j.demeyer@...il.com>
> ---
>  .../bpf/bpftool/Documentation/bpftool-cgroup.rst | 16 +++++++++++++---
>  tools/bpf/bpftool/Documentation/bpftool-prog.rst |  8 +++++---
>  tools/bpf/bpftool/bash-completion/bpftool        | 14 +++++++-------
>  tools/bpf/bpftool/cgroup.c                       | 16 +++++++++-------
>  tools/bpf/bpftool/prog.c                         |  7 ++++---
>  5 files changed, 38 insertions(+), 23 deletions(-)
> 
> diff --git a/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst b/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst
> index bd015ec9847b..3e4f5ff24208 100644
> --- a/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst
> +++ b/tools/bpf/bpftool/Documentation/bpftool-cgroup.rst
> @@ -102,21 +105,28 @@ DESCRIPTION
>  		  **post_bind6** return from bind(2) for an inet6 socket (since 4.17);
>  		  **connect4** call to connect(2) for an inet4 socket (since 4.17);
>  		  **connect6** call to connect(2) for an inet6 socket (since 4.17);
> +		  **connectun** call to connect(2) for a unix socket (since 6.3);
>  		  **sendmsg4** call to sendto(2), sendmsg(2), sendmmsg(2) for an
>  		  unconnected udp4 socket (since 4.18);
>  		  **sendmsg6** call to sendto(2), sendmsg(2), sendmmsg(2) for an
>  		  unconnected udp6 socket (since 4.18);
> +		  **sendmsgun** call to sendto(2), sendmsg(2), sendmmsg(2) for
> +		  an unconnected unix socket (since 6.3);
>  		  **recvmsg4** call to recvfrom(2), recvmsg(2), recvmmsg(2) for
>  		  an unconnected udp4 socket (since 5.2);
>  		  **recvmsg6** call to recvfrom(2), recvmsg(2), recvmmsg(2) for
>  		  an unconnected udp6 socket (since 5.2);
> +		  **recvmsgun** call to recvfrom(2), recvmsg(2), recvmmsg(2) for
> +		  an unconnected unix socket (since 6.3);
>  		  **sysctl** sysctl access (since 5.2);
>  		  **getsockopt** call to getsockopt (since 5.3);
>  		  **setsockopt** call to setsockopt (since 5.3);
>  		  **getpeername4** call to getpeername(2) for an inet4 socket (since 5.8);
>  		  **getpeername6** call to getpeername(2) for an inet6 socket (since 5.8);
> +		  **getpeernameun** call to getpeername(2) for a unix socket (since 6.3);
>  		  **getsockname4** call to getsockname(2) for an inet4 socket (since 5.8);
>  		  **getsockname6** call to getsockname(2) for an inet6 socket (since 5.8).
> +		  **getsocknameun** call to getsockname(2) for a unix socket (since 6.3);

Same comment as for v4 - please update the kernel version (6.3) for the
new entries.

Bpftool changes look good otherwise.

Acked-by: Quentin Monnet <quentin@...valent.com>