1 files changed, 0 insertions, 89 deletions
diff --git a/kernel/net/mcps802154/fira_cmac.c b/kernel/net/mcps802154/fira_cmac.c
deleted file mode 100644
index b2e1437..0000000
--- a/kernel/net/mcps802154/fira_cmac.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * This file is part of the UWB stack for linux.
- *
- * Copyright (c) 2020-2021 Qorvo US, Inc.
- *
- * This software is provided under the GNU General Public License, version 2
- * (GPLv2), as well as under a Qorvo commercial license.
- *
- * You may choose to use this software under the terms of the GPLv2 License,
- * version 2 ("GPLv2"), as published by the Free Software Foundation.
- * You should have received a copy of the GPLv2 along with this program.  If
- * not, see <http://www.gnu.org/licenses/>.
- *
- * This program is distributed under the GPLv2 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 GPLv2 for more
- * details.
- *
- * If you cannot meet the requirements of the GPLv2, you may not use this
- * software for any purpose without first obtaining a commercial license from
- * Qorvo. Please contact Qorvo to inquire about licensing terms.
- */
-
-#include "fira_cmac.h"
-
-#include <asm/unaligned.h>
-#include <linux/crypto.h>
-#include <crypto/hash.h>
-#include <linux/err.h>
-
-int fira_digest(const u8 *key, unsigned int key_len, const u8 *data,
-		unsigned int data_len, u8 *out)
-{
-	struct crypto_shash *tfm;
-	int r;
-
-	tfm = crypto_alloc_shash("cmac(aes)", 0, 0);
-	if (IS_ERR(tfm)) {
-		if (PTR_ERR(tfm) == -ENOENT) {
-			pr_err("The crypto transform cmac(aes) seems to be missing."
-			       " Please check your kernel configuration.\n");
-		}
-		return PTR_ERR(tfm);
-	}
-
-	r = crypto_shash_setkey(tfm, key, key_len);
-	if (r)
-		goto out;
-
-	do {
-		/* tfm need to be allocated for kernel < 4.20, so don't remove
-		 * this do..while block. */
-		SHASH_DESC_ON_STACK(desc, tfm);
-		desc->tfm = tfm;
-
-		r = crypto_shash_init(desc);
-		if (r)
-			goto out;
-
-		r = crypto_shash_finup(desc, data, data_len, out);
-	} while (0);
-
-out:
-	crypto_free_shash(tfm);
-	return r;
-}
-
-int fira_kdf(const u8 *input_key, unsigned int input_key_len, const char *label,
-	     const u8 *context, u8 *output_key, unsigned int output_key_len)
-{
-	u8 derivation_data[sizeof(u32) + FIRA_KDF_LABEL_LEN +
-			   FIRA_KDF_CONTEXT_LEN + sizeof(u32)];
-	u8 *p;
-
-	if (output_key_len != AES_KEYSIZE_128)
-		return -1;
-
-	p = derivation_data;
-	put_unaligned_be32(1, p);
-	p += sizeof(u32);
-	memcpy(p, label, FIRA_KDF_LABEL_LEN);
-	p += FIRA_KDF_LABEL_LEN;
-	memcpy(p, context, FIRA_KDF_CONTEXT_LEN);
-	p += FIRA_KDF_CONTEXT_LEN;
-	put_unaligned_be32(output_key_len * 8, p);
-
-	return fira_digest(input_key, input_key_len, derivation_data,
-			   sizeof(derivation_data), output_key);
-}