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/fs/cifs/smbencrypt.c | 32 ++++++++++----------------------
1 files changed, 10 insertions(+), 22 deletions(-)
diff --git a/kernel/fs/cifs/smbencrypt.c b/kernel/fs/cifs/smbencrypt.c
index a0b80ac..39a9384 100644
--- a/kernel/fs/cifs/smbencrypt.c
+++ b/kernel/fs/cifs/smbencrypt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
Unix SMB/Netbios implementation.
Version 1.9.
@@ -8,28 +9,16 @@
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
Modified by Steve French (sfrench@us.ibm.com) 2002-2003
- 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.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/crypto.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/fips.h>
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/random.h>
+#include <crypto/des.h>
#include "cifs_fs_sb.h"
#include "cifs_unicode.h"
#include "cifspdu.h"
@@ -70,19 +59,18 @@
smbhash(unsigned char *out, const unsigned char *in, unsigned char *key)
{
unsigned char key2[8];
- struct crypto_cipher *tfm_des;
+ struct des_ctx ctx;
str_to_key(key, key2);
- tfm_des = crypto_alloc_cipher("des", 0, 0);
- if (IS_ERR(tfm_des)) {
- cifs_dbg(VFS, "could not allocate des crypto API\n");
- return PTR_ERR(tfm_des);
+ if (fips_enabled) {
+ cifs_dbg(VFS, "FIPS compliance enabled: DES not permitted\n");
+ return -ENOENT;
}
- crypto_cipher_setkey(tfm_des, key2, 8);
- crypto_cipher_encrypt_one(tfm_des, out, in);
- crypto_free_cipher(tfm_des);
+ des_expand_key(&ctx, key2, DES_KEY_SIZE);
+ des_encrypt(&ctx, out, in);
+ memzero_explicit(&ctx, sizeof(ctx));
return 0;
}
--
Gitblit v1.6.2