From patchwork Thu Feb  9 01:16:45 2023
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Date: Thu, 9 Feb 2023 09:16:45 +0800
From: Herbert Xu <herbert@gondor.apana.org.au>
To: Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
        Ondrej Mosnacek <omosnace@redhat.com>
Subject: [PATCH] crypto: proc - Print fips status
Message-ID: <Y+RJfZ5o59azXqSc@gondor.apana.org.au>
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As FIPS may disable algorithms it is useful to show their status
in /proc/crypto.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Ard Biesheuvel <ardb@kernel.org>

diff --git a/crypto/proc.c b/crypto/proc.c
index 12fccb9c5205..56c7c78df297 100644
--- a/crypto/proc.c
+++ b/crypto/proc.c
@@ -11,6 +11,7 @@
 #include <linux/atomic.h>
 #include <linux/init.h>
 #include <linux/crypto.h>
+#include <linux/fips.h>
 #include <linux/module.h>	/* for module_name() */
 #include <linux/rwsem.h>
 #include <linux/proc_fs.h>
@@ -48,6 +49,11 @@ static int c_show(struct seq_file *m, void *p)
 	seq_printf(m, "internal     : %s\n",
 		   (alg->cra_flags & CRYPTO_ALG_INTERNAL) ?
 		   "yes" : "no");
+	if (fips_enabled) {
+		seq_printf(m, "fips         : %s\n",
+			   (alg->cra_flags & CRYPTO_ALG_FIPS_INTERNAL) ?
+			   "no" : "yes");
+	}
 
 	if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
 		seq_printf(m, "type         : larval\n");