linux-kernel - [PATCH] net/tls: Fix return values for setsockopt

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Message-Id: <20191203224458.24338-1-vvidic@valentin-vidic.from.hr>
Date:   Tue,  3 Dec 2019 23:44:58 +0100
From:   Valentin Vidic <vvidic@...entin-vidic.from.hr>
To:     Boris Pismenny <borisp@...lanox.com>,
        Aviad Yehezkel <aviadye@...lanox.com>,
        John Fastabend <john.fastabend@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Valentin Vidic <vvidic@...entin-vidic.from.hr>
Subject: [PATCH] net/tls: Fix return values for setsockopt

ENOTSUPP is not available in userspace:

  setsockopt failed, 524, Unknown error 524

Signed-off-by: Valentin Vidic <vvidic@...entin-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;
 	}
 
@@ -723,7 +723,7 @@ static int tls_init(struct sock *sk)
 	 * share the ulp context.
 	 */
 	if (sk->sk_state != TCP_ESTABLISHED)
-		return -ENOTSUPP;
+		return -ENOTCONN;
 
 	/* allocate tls context */
 	write_lock_bh(&sk->sk_callback_lock);
-- 
2.20.1