From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/crypto/rng.c | 24 +++++++++---------------
1 files changed, 9 insertions(+), 15 deletions(-)
diff --git a/kernel/crypto/rng.c b/kernel/crypto/rng.c
index b4a6186..fea082b 100644
--- a/kernel/crypto/rng.c
+++ b/kernel/crypto/rng.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Cryptographic API.
*
@@ -5,12 +6,6 @@
*
* Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
* Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
*/
#include <linux/atomic.h>
@@ -35,6 +30,7 @@
int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
{
+ struct crypto_alg *alg = tfm->base.__crt_alg;
u8 *buf = NULL;
int err;
@@ -49,9 +45,11 @@
seed = buf;
}
+ crypto_stats_get(alg);
err = crypto_rng_alg(tfm)->seed(tfm, seed, slen);
+ crypto_stats_rng_seed(alg, err);
out:
- kzfree(buf);
+ kfree_sensitive(buf);
return err;
}
EXPORT_SYMBOL_GPL(crypto_rng_reset);
@@ -73,17 +71,13 @@
{
struct crypto_report_rng rrng;
- strncpy(rrng.type, "rng", sizeof(rrng.type));
+ memset(&rrng, 0, sizeof(rrng));
+
+ strscpy(rrng.type, "rng", sizeof(rrng.type));
rrng.seedsize = seedsize(alg);
- if (nla_put(skb, CRYPTOCFGA_REPORT_RNG,
- sizeof(struct crypto_report_rng), &rrng))
- goto nla_put_failure;
- return 0;
-
-nla_put_failure:
- return -EMSGSIZE;
+ return nla_put(skb, CRYPTOCFGA_REPORT_RNG, sizeof(rrng), &rrng);
}
#else
static int crypto_rng_report(struct sk_buff *skb, struct crypto_alg *alg)
--
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