netdev - Re: [PATCH net-next v2 3/3] sctp: Convert cookie authentication to use HMAC-SHA256

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Message-ID: <20250815120910.1b65fbd6@kernel.org>
Date: Fri, 15 Aug 2025 12:09:10 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Eric Biggers <ebiggers@...nel.org>
Cc: linux-sctp@...r.kernel.org, netdev@...r.kernel.org, Xin Long
 <lucien.xin@...il.com>, Marcelo Ricardo Leitner
 <marcelo.leitner@...il.com>, linux-crypto@...r.kernel.org
Subject: Re: [PATCH net-next v2 3/3] sctp: Convert cookie authentication to
 use HMAC-SHA256

On Tue, 12 Aug 2025 21:01:21 -0700 Eric Biggers wrote:
> +	if (net->sctp.cookie_auth_enable)
> +		tbl.data = (char *)"sha256";
> +	else
> +		tbl.data = (char *)"none";
> +	tbl.maxlen = strlen(tbl.data);
> +	return proc_dostring(&tbl, 0, buffer, lenp, ppos);

I wonder if someone out there expects to read back what they wrote,
but let us find out.

It'd be great to get an ack / review from SCTP maintainers, otherwise
we'll apply by Monday..