[PATCH net-next] wireguard: disable in FIPS mode

[PATCH net-next] wireguard: disable in FIPS mode

[Hangbin Liu]

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

Re: [PATCH net-next] wireguard: disable in FIPS mode

[Hangbin Liu]

On Wed, Apr 07, 2021 at 06:43:07PM +0800, Hangbin Liu wrote:
> 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>

Ondrej remind that I need to cc linux-crypto. I will resend the patch.

Thanks
Hangbin