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From:   Hangbin Liu <liuhangbin@gmail.com>
To:     netdev@vger.kernel.org
Cc:     "Jason A . Donenfeld" <Jason@zx2c4.com>,
        =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Ondrej Mosnacek <omosnace@redhat.com>,
        linux-crypto@vger.kernel.org, Hangbin Liu <liuhangbin@gmail.com>
Subject: [PATCH net-next] [RESEND] wireguard: disable in FIPS mode
Date:   Wed,  7 Apr 2021 19:39:20 +0800
Message-Id: <20210407113920.3735505-1-liuhangbin@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

As the cryptos(BLAKE2S, Curve25519, CHACHA20POLY1305) in WireGuard are not
FIPS certified, the WireGuard module should be disabled in FIPS mode.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
 drivers/net/wireguard/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c
index 7a7d5f1a80fc..8a9aaea7623c 100644
--- a/drivers/net/wireguard/main.c
+++ b/drivers/net/wireguard/main.c
@@ -12,6 +12,7 @@
 
 #include <uapi/linux/wireguard.h>
 
+#include <linux/fips.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/genetlink.h>
@@ -21,6 +22,9 @@ static int __init mod_init(void)
 {
 	int ret;
 
+	if (fips_enabled)
+		return -EOPNOTSUPP;
+
 #ifdef DEBUG
 	if (!wg_allowedips_selftest() || !wg_packet_counter_selftest() ||
 	    !wg_ratelimiter_selftest())
-- 
2.26.3