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From: "Valentin Vidić" <vvidic@valentin-vidic.from.hr>
To: Jeffrey Walton <noloader@gmail.com>
Cc: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>,
	kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: [PATCH] net/tls: Fix return values for setsockopt
Date: Sat, 30 Nov 2019 14:31:58 +0100
Message-ID: <20191130133158.GK20116@valentin-vidic.from.hr> (raw)
In-Reply-To: <CAH8yC8koPyin6--238Q6bN+2vgrpLXegzuxPVzxyvfmJZAJcOw@mail.gmail.com>

On Sat, Nov 30, 2019 at 08:15:56AM -0500, Jeffrey Walton wrote:
> On Sat, Nov 30, 2019 at 7:55 AM Valentin Vidic
> <vvidic@valentin-vidic.from.hr> wrote:
> >
> > ENOTSUPP is not available in userspace:
> >
> >   setsockopt failed, 524, Unknown error 524
> >
> > Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
> > ---
> >  net/tls/tls_main.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
> > index bdca31ffe6da..5830b8e02a36 100644
> > --- a/net/tls/tls_main.c
> > +++ b/net/tls/tls_main.c
> > @@ -496,7 +496,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval,
> >         /* check version */
> >         if (crypto_info->version != TLS_1_2_VERSION &&
> >             crypto_info->version != TLS_1_3_VERSION) {
> > -               rc = -ENOTSUPP;
> > +               rc = -EINVAL;
> >                 goto err_crypto_info;
> >         }
> 
> A quick comment... ENOTSUP is available in <errno.h> [0] if you want
> to stay in the "not supported" path.

For this case I put EINVAL because other similar checks in
do_tls_setsockopt_conf already use that (for example invalid
value for crypto_info->cipher_type).

-- 
Valentin

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Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-29 19:36 Kernel TLS Jeffrey Walton
2019-11-29 19:46 ` Alexander Mihalicyn
2019-11-29 19:48 ` Valentin Vidić
2019-11-29 19:57   ` Jeffrey Walton
2019-11-29 20:04     ` Jeffrey Walton
2019-11-30  4:37       ` Jeffrey Walton
2019-11-30  6:16         ` Alexander Mihalicyn
2019-11-30  6:40         ` Valdis Klētnieks
2019-11-30  8:13           ` Bjørn Mork
2019-11-30  9:11             ` Valdis Klētnieks
2019-11-30 10:10               ` Bjørn Mork
2019-11-30 10:34                 ` Valdis Klētnieks
2019-11-30 12:54                   ` [PATCH] net/tls: Fix return values for setsockopt Valentin Vidic
2019-11-30 13:15                     ` Jeffrey Walton
2019-11-30 13:31                       ` Valentin Vidić [this message]

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