netdev - Re: [PATCH v4 bpf-next/net 2/5] bpf: Support bpf_setsockopt() for BPF_CGROUP_INET_SOCK

lists.openwall.net		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 linux-hardening linux-cve-announce 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]

Message-ID: <9bc995b4-d0bd-41a8-8867-97507a55d449@linux.dev>
Date: Tue, 2 Sep 2025 12:10:45 -0700
From: Martin KaFai Lau <martin.lau@...ux.dev>
To: Kuniyuki Iwashima <kuniyu@...gle.com>
Cc: Alexei Starovoitov <ast@...nel.org>, Andrii Nakryiko <andrii@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>,
 John Fastabend <john.fastabend@...il.com>,
 Stanislav Fomichev <sdf@...ichev.me>, Johannes Weiner <hannes@...xchg.org>,
 Michal Hocko <mhocko@...nel.org>, Roman Gushchin <roman.gushchin@...ux.dev>,
 Shakeel Butt <shakeel.butt@...ux.dev>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Neal Cardwell <ncardwell@...gle.com>, Willem de Bruijn <willemb@...gle.com>,
 Mina Almasry <almasrymina@...gle.com>, Kuniyuki Iwashima
 <kuni1840@...il.com>, bpf@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v4 bpf-next/net 2/5] bpf: Support bpf_setsockopt() for
 BPF_CGROUP_INET_SOCK_CREATE.

On 8/28/25 6:00 PM, Kuniyuki Iwashima wrote:
> +BPF_CALL_5(bpf_unlocked_sock_setsockopt, struct sock *, sk, int, level,
> +	   int, optname, char *, optval, int, optlen)
> +{
> +	return __bpf_setsockopt(sk, level, optname, optval, optlen);
> +}
> +
> +static const struct bpf_func_proto bpf_unlocked_sock_setsockopt_proto = {

nit. There is a bpf_unlocked_"sk"_{get,set}sockopt_proto which its .func is also 
taking "struct sock *". This one is sock_create specific, how about renaming it 
to bpf_sock_create_{get,set}sockopt_proto. The same for the its .func.

> +	.func		= bpf_unlocked_sock_setsockopt,
> +	.gpl_only	= false,
> +	.ret_type	= RET_INTEGER,
> +	.arg1_type	= ARG_PTR_TO_CTX,
> +	.arg2_type	= ARG_ANYTHING,
> +	.arg3_type	= ARG_ANYTHING,
> +	.arg4_type	= ARG_PTR_TO_MEM | MEM_RDONLY,
> +	.arg5_type	= ARG_CONST_SIZE,
> +};
> +
> +BPF_CALL_5(bpf_unlocked_sock_getsockopt, struct sock *, sk, int, level,
> +	   int, optname, char *, optval, int, optlen)
> +{
> +	return __bpf_getsockopt(sk, level, optname, optval, optlen);
> +}
> +
> +static const struct bpf_func_proto bpf_unlocked_sock_getsockopt_proto = {
> +	.func		= bpf_unlocked_sock_getsockopt,
> +	.gpl_only	= false,
> +	.ret_type	= RET_INTEGER,
> +	.arg1_type	= ARG_PTR_TO_CTX,
> +	.arg2_type	= ARG_ANYTHING,
> +	.arg3_type	= ARG_ANYTHING,
> +	.arg4_type	= ARG_PTR_TO_UNINIT_MEM,
> +	.arg5_type	= ARG_CONST_SIZE,
> +};