1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2023 Stormshield
5 * Copyright (c) 2023 Semihalf
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 * redistribution must be conditioned upon including a substantially
16 * similar Disclaimer requirement for further binary redistribution.
17 *
18 * NO WARRANTY
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGES.
30 */
31
32 #include <sys/param.h>
33
34 #include <machine/elf.h>
35 #include <machine/md_var.h>
36
37 #include <crypto/openssl/ossl.h>
38 #include <crypto/openssl/ossl_cipher.h>
39 #include <crypto/openssl/arm_arch.h>
40
41 ossl_cipher_setkey_t AES_set_encrypt_key;
42 ossl_cipher_setkey_t AES_set_decrypt_key;
43
44 ossl_cipher_setkey_t ossl_aes_gcm_setkey;
45
46 unsigned int OPENSSL_armcap_P;
47
48 void
ossl_cpuid(struct ossl_softc * sc)49 ossl_cpuid(struct ossl_softc *sc)
50 {
51 if (elf_hwcap & HWCAP_NEON) {
52 OPENSSL_armcap_P |= ARMV7_NEON;
53
54 sc->has_aes = true;
55 ossl_cipher_aes_cbc.set_encrypt_key = AES_set_encrypt_key;
56 ossl_cipher_aes_cbc.set_decrypt_key = AES_set_decrypt_key;
57
58 sc->has_aes_gcm = true;
59 ossl_cipher_aes_gcm.set_encrypt_key = ossl_aes_gcm_setkey;
60 ossl_cipher_aes_gcm.set_decrypt_key = ossl_aes_gcm_setkey;
61 }
62 }
63