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Message-ID: <ZisyYt6nO9QTf4WC@gauss3.secunet.de>
Date: Fri, 26 Apr 2024 06:49:38 +0200
From: Steffen Klassert <steffen.klassert@...unet.com>
To: Antony Antony <antony.antony@...unet.com>
CC: Herbert Xu <herbert@...dor.apana.org.au>, <netdev@...r.kernel.org>, "David
S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, "Jakub
Kicinski" <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
<devel@...ux-ipsec.org>, Leon Romanovsky <leon@...nel.org>, Eyal Birger
<eyal.birger@...il.com>, Nicolas Dichtel <nicolas.dichtel@...nd.com>,
"Sabrina Dubroca" <sd@...asysnail.net>
Subject: Re: [PATCH ipsec-next v12 4/4] xfrm: Restrict SA direction attribute
to specific netlink message types
On Tue, Apr 23, 2024 at 02:51:21PM +0200, Antony Antony wrote:
> Reject the usage of the SA_DIR attribute in xfrm netlink messages when
> it's not applicable. This ensures that SA_DIR is only accepted for
> certain message types (NEWSA, UPDSA, and ALLOCSPI)
>
> Signed-off-by: Antony Antony <antony.antony@...unet.com>
> ---
> v11 -> 12
> - fix spd look up. This broke xfrm_policy.sh tests
> ---
> net/xfrm/xfrm_user.c | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
> index d34ac467a219..5d8aac0e8a6f 100644
> --- a/net/xfrm/xfrm_user.c
> +++ b/net/xfrm/xfrm_user.c
> @@ -3200,6 +3200,24 @@ static const struct xfrm_link {
> [XFRM_MSG_GETDEFAULT - XFRM_MSG_BASE] = { .doit = xfrm_get_default },
> };
>
> +static int xfrm_reject_unused(int type, struct nlattr **attrs,
> + struct netlink_ext_ack *extack)
Maybe call that function xfrm_reject_unused_attr to make it clear
what is unused here?
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