2016-10-28 10:33:23 +02:00
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/*
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* QEMU Cryptodev backend for QEMU cipher APIs
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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*
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* Authors:
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* Gonglei <arei.gonglei@huawei.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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2020-10-14 15:37:22 +02:00
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* version 2.1 of the License, or (at your option) any later version.
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2016-10-28 10:33:23 +02:00
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "qemu/osdep.h"
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#include "sysemu/cryptodev.h"
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#include "qapi/error.h"
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#include "standard-headers/linux/virtio_crypto.h"
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#include "crypto/cipher.h"
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2022-06-11 08:42:43 +02:00
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#include "crypto/akcipher.h"
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2020-09-03 22:43:22 +02:00
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#include "qom/object.h"
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2016-10-28 10:33:23 +02:00
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/**
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* @TYPE_CRYPTODEV_BACKEND_BUILTIN:
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* name of backend that uses QEMU cipher API
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*/
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#define TYPE_CRYPTODEV_BACKEND_BUILTIN "cryptodev-backend-builtin"
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2020-09-16 20:25:19 +02:00
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OBJECT_DECLARE_SIMPLE_TYPE(CryptoDevBackendBuiltin, CRYPTODEV_BACKEND_BUILTIN)
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2016-10-28 10:33:23 +02:00
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typedef struct CryptoDevBackendBuiltinSession {
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QCryptoCipher *cipher;
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uint8_t direction; /* encryption or decryption */
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uint8_t type; /* cipher? hash? aead? */
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2022-06-11 08:42:43 +02:00
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QCryptoAkCipher *akcipher;
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2016-10-28 10:33:23 +02:00
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QTAILQ_ENTRY(CryptoDevBackendBuiltinSession) next;
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} CryptoDevBackendBuiltinSession;
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2022-06-11 08:42:43 +02:00
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/* Max number of symmetric/asymmetric sessions */
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2016-10-28 10:33:23 +02:00
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#define MAX_NUM_SESSIONS 256
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#define CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN 512
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#define CRYPTODEV_BUITLIN_MAX_CIPHER_KEY_LEN 64
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struct CryptoDevBackendBuiltin {
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CryptoDevBackend parent_obj;
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CryptoDevBackendBuiltinSession *sessions[MAX_NUM_SESSIONS];
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};
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static void cryptodev_builtin_init(
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CryptoDevBackend *backend, Error **errp)
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{
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/* Only support one queue */
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int queues = backend->conf.peers.queues;
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CryptoDevBackendClient *cc;
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if (queues != 1) {
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error_setg(errp,
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"Only support one queue in cryptdov-builtin backend");
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return;
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}
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2023-03-01 11:58:37 +01:00
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cc = cryptodev_backend_new_client();
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2016-10-28 10:33:23 +02:00
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cc->info_str = g_strdup_printf("cryptodev-builtin0");
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cc->queue_index = 0;
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2023-03-01 11:58:36 +01:00
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cc->type = QCRYPTODEV_BACKEND_TYPE_BUILTIN;
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2016-10-28 10:33:23 +02:00
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backend->conf.peers.ccs[0] = cc;
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backend->conf.crypto_services =
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1u << VIRTIO_CRYPTO_SERVICE_CIPHER |
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1u << VIRTIO_CRYPTO_SERVICE_HASH |
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2022-06-11 08:42:43 +02:00
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1u << VIRTIO_CRYPTO_SERVICE_MAC |
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1u << VIRTIO_CRYPTO_SERVICE_AKCIPHER;
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2016-10-28 10:33:23 +02:00
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backend->conf.cipher_algo_l = 1u << VIRTIO_CRYPTO_CIPHER_AES_CBC;
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backend->conf.hash_algo = 1u << VIRTIO_CRYPTO_HASH_SHA1;
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2022-06-11 08:42:43 +02:00
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backend->conf.akcipher_algo = 1u << VIRTIO_CRYPTO_AKCIPHER_RSA;
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2016-10-28 10:33:23 +02:00
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/*
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* Set the Maximum length of crypto request.
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* Why this value? Just avoid to overflow when
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* memory allocation for each crypto request.
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*/
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2022-06-11 08:42:43 +02:00
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backend->conf.max_size = LONG_MAX - sizeof(CryptoDevBackendOpInfo);
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2016-10-28 10:33:23 +02:00
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backend->conf.max_cipher_key_len = CRYPTODEV_BUITLIN_MAX_CIPHER_KEY_LEN;
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backend->conf.max_auth_key_len = CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN;
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2016-12-22 04:12:39 +01:00
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cryptodev_backend_set_ready(backend, true);
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2016-10-28 10:33:23 +02:00
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}
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static int
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cryptodev_builtin_get_unused_session_index(
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CryptoDevBackendBuiltin *builtin)
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{
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size_t i;
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for (i = 0; i < MAX_NUM_SESSIONS; i++) {
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if (builtin->sessions[i] == NULL) {
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return i;
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}
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}
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return -1;
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}
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2016-12-05 12:39:08 +01:00
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#define AES_KEYSIZE_128 16
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#define AES_KEYSIZE_192 24
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#define AES_KEYSIZE_256 32
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#define AES_KEYSIZE_128_XTS AES_KEYSIZE_256
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#define AES_KEYSIZE_256_XTS 64
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2016-10-28 10:33:23 +02:00
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static int
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2016-12-05 12:39:08 +01:00
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cryptodev_builtin_get_aes_algo(uint32_t key_len, int mode, Error **errp)
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2016-10-28 10:33:23 +02:00
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{
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int algo;
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2016-12-05 12:39:08 +01:00
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if (key_len == AES_KEYSIZE_128) {
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2016-10-28 10:33:23 +02:00
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algo = QCRYPTO_CIPHER_ALG_AES_128;
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2016-12-05 12:39:08 +01:00
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} else if (key_len == AES_KEYSIZE_192) {
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2016-10-28 10:33:23 +02:00
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algo = QCRYPTO_CIPHER_ALG_AES_192;
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2016-12-05 12:39:08 +01:00
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} else if (key_len == AES_KEYSIZE_256) { /* equals AES_KEYSIZE_128_XTS */
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if (mode == QCRYPTO_CIPHER_MODE_XTS) {
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algo = QCRYPTO_CIPHER_ALG_AES_128;
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} else {
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algo = QCRYPTO_CIPHER_ALG_AES_256;
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}
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} else if (key_len == AES_KEYSIZE_256_XTS) {
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if (mode == QCRYPTO_CIPHER_MODE_XTS) {
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algo = QCRYPTO_CIPHER_ALG_AES_256;
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} else {
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goto err;
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}
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2016-10-28 10:33:23 +02:00
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} else {
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2016-12-05 12:39:08 +01:00
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goto err;
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2016-10-28 10:33:23 +02:00
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}
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return algo;
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2016-12-05 12:39:08 +01:00
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err:
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error_setg(errp, "Unsupported key length :%u", key_len);
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return -1;
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2016-10-28 10:33:23 +02:00
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}
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2022-06-11 08:42:43 +02:00
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static int cryptodev_builtin_get_rsa_hash_algo(
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int virtio_rsa_hash, Error **errp)
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{
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switch (virtio_rsa_hash) {
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case VIRTIO_CRYPTO_RSA_MD5:
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return QCRYPTO_HASH_ALG_MD5;
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case VIRTIO_CRYPTO_RSA_SHA1:
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return QCRYPTO_HASH_ALG_SHA1;
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case VIRTIO_CRYPTO_RSA_SHA256:
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return QCRYPTO_HASH_ALG_SHA256;
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case VIRTIO_CRYPTO_RSA_SHA512:
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return QCRYPTO_HASH_ALG_SHA512;
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default:
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error_setg(errp, "Unsupported rsa hash algo: %d", virtio_rsa_hash);
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return -1;
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}
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}
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static int cryptodev_builtin_set_rsa_options(
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int virtio_padding_algo,
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int virtio_hash_algo,
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QCryptoAkCipherOptionsRSA *opt,
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Error **errp)
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{
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if (virtio_padding_algo == VIRTIO_CRYPTO_RSA_PKCS1_PADDING) {
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int hash_alg;
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hash_alg = cryptodev_builtin_get_rsa_hash_algo(virtio_hash_algo, errp);
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if (hash_alg < 0) {
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return -1;
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}
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opt->hash_alg = hash_alg;
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opt->padding_alg = QCRYPTO_RSA_PADDING_ALG_PKCS1;
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return 0;
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}
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if (virtio_padding_algo == VIRTIO_CRYPTO_RSA_RAW_PADDING) {
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opt->padding_alg = QCRYPTO_RSA_PADDING_ALG_RAW;
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return 0;
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}
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error_setg(errp, "Unsupported rsa padding algo: %d", virtio_padding_algo);
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return -1;
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}
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2016-10-28 10:33:23 +02:00
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static int cryptodev_builtin_create_cipher_session(
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CryptoDevBackendBuiltin *builtin,
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CryptoDevBackendSymSessionInfo *sess_info,
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Error **errp)
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{
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int algo;
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int mode;
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QCryptoCipher *cipher;
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int index;
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CryptoDevBackendBuiltinSession *sess;
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if (sess_info->op_type != VIRTIO_CRYPTO_SYM_OP_CIPHER) {
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error_setg(errp, "Unsupported optype :%u", sess_info->op_type);
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return -1;
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}
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index = cryptodev_builtin_get_unused_session_index(builtin);
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if (index < 0) {
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error_setg(errp, "Total number of sessions created exceeds %u",
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MAX_NUM_SESSIONS);
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return -1;
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}
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switch (sess_info->cipher_alg) {
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case VIRTIO_CRYPTO_CIPHER_AES_ECB:
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2016-12-05 12:39:08 +01:00
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mode = QCRYPTO_CIPHER_MODE_ECB;
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2016-10-28 10:33:23 +02:00
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algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
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2016-12-05 12:39:08 +01:00
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mode, errp);
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2016-10-28 10:33:23 +02:00
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if (algo < 0) {
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return -1;
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}
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break;
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case VIRTIO_CRYPTO_CIPHER_AES_CBC:
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2016-12-05 12:39:08 +01:00
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mode = QCRYPTO_CIPHER_MODE_CBC;
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2016-10-28 10:33:23 +02:00
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algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
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2016-12-05 12:39:08 +01:00
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mode, errp);
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2016-10-28 10:33:23 +02:00
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if (algo < 0) {
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return -1;
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}
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break;
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case VIRTIO_CRYPTO_CIPHER_AES_CTR:
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2016-12-05 12:39:08 +01:00
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mode = QCRYPTO_CIPHER_MODE_CTR;
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2016-10-28 10:33:23 +02:00
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algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
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2016-12-05 12:39:08 +01:00
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mode, errp);
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2016-10-28 10:33:23 +02:00
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if (algo < 0) {
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return -1;
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}
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break;
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2016-12-05 12:39:09 +01:00
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case VIRTIO_CRYPTO_CIPHER_AES_XTS:
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mode = QCRYPTO_CIPHER_MODE_XTS;
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algo = cryptodev_builtin_get_aes_algo(sess_info->key_len,
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mode, errp);
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if (algo < 0) {
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return -1;
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}
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break;
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2016-12-08 03:44:02 +01:00
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case VIRTIO_CRYPTO_CIPHER_3DES_ECB:
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mode = QCRYPTO_CIPHER_MODE_ECB;
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algo = QCRYPTO_CIPHER_ALG_3DES;
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break;
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case VIRTIO_CRYPTO_CIPHER_3DES_CBC:
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mode = QCRYPTO_CIPHER_MODE_CBC;
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algo = QCRYPTO_CIPHER_ALG_3DES;
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break;
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case VIRTIO_CRYPTO_CIPHER_3DES_CTR:
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mode = QCRYPTO_CIPHER_MODE_CTR;
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algo = QCRYPTO_CIPHER_ALG_3DES;
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break;
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2016-10-28 10:33:23 +02:00
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default:
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error_setg(errp, "Unsupported cipher alg :%u",
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sess_info->cipher_alg);
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return -1;
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}
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cipher = qcrypto_cipher_new(algo, mode,
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sess_info->cipher_key,
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sess_info->key_len,
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errp);
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if (!cipher) {
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return -1;
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}
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sess = g_new0(CryptoDevBackendBuiltinSession, 1);
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sess->cipher = cipher;
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sess->direction = sess_info->direction;
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sess->type = sess_info->op_type;
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builtin->sessions[index] = sess;
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return index;
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}
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|
2022-06-11 08:42:43 +02:00
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static int cryptodev_builtin_create_akcipher_session(
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CryptoDevBackendBuiltin *builtin,
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CryptoDevBackendAsymSessionInfo *sess_info,
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Error **errp)
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{
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CryptoDevBackendBuiltinSession *sess;
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QCryptoAkCipher *akcipher;
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int index;
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QCryptoAkCipherKeyType type;
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QCryptoAkCipherOptions opts;
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switch (sess_info->algo) {
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case VIRTIO_CRYPTO_AKCIPHER_RSA:
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opts.alg = QCRYPTO_AKCIPHER_ALG_RSA;
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if (cryptodev_builtin_set_rsa_options(sess_info->u.rsa.padding_algo,
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sess_info->u.rsa.hash_algo, &opts.u.rsa, errp) != 0) {
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return -1;
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}
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break;
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/* TODO support DSA&ECDSA until qemu crypto framework support these */
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default:
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error_setg(errp, "Unsupported akcipher alg %u", sess_info->algo);
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|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (sess_info->keytype) {
|
|
|
|
case VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PUBLIC:
|
|
|
|
type = QCRYPTO_AKCIPHER_KEY_TYPE_PUBLIC;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case VIRTIO_CRYPTO_AKCIPHER_KEY_TYPE_PRIVATE:
|
|
|
|
type = QCRYPTO_AKCIPHER_KEY_TYPE_PRIVATE;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
error_setg(errp, "Unsupported akcipher keytype %u", sess_info->keytype);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
index = cryptodev_builtin_get_unused_session_index(builtin);
|
|
|
|
if (index < 0) {
|
|
|
|
error_setg(errp, "Total number of sessions created exceeds %u",
|
|
|
|
MAX_NUM_SESSIONS);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
akcipher = qcrypto_akcipher_new(&opts, type, sess_info->key,
|
|
|
|
sess_info->keylen, errp);
|
|
|
|
if (!akcipher) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
sess = g_new0(CryptoDevBackendBuiltinSession, 1);
|
|
|
|
sess->akcipher = akcipher;
|
|
|
|
|
|
|
|
builtin->sessions[index] = sess;
|
|
|
|
|
|
|
|
return index;
|
|
|
|
}
|
|
|
|
|
2022-10-08 10:50:27 +02:00
|
|
|
static int cryptodev_builtin_create_session(
|
2016-10-28 10:33:23 +02:00
|
|
|
CryptoDevBackend *backend,
|
2022-06-11 08:42:43 +02:00
|
|
|
CryptoDevBackendSessionInfo *sess_info,
|
2022-10-08 10:50:27 +02:00
|
|
|
uint32_t queue_index,
|
|
|
|
CryptoDevCompletionFunc cb,
|
|
|
|
void *opaque)
|
2016-10-28 10:33:23 +02:00
|
|
|
{
|
|
|
|
CryptoDevBackendBuiltin *builtin =
|
|
|
|
CRYPTODEV_BACKEND_BUILTIN(backend);
|
2022-06-11 08:42:43 +02:00
|
|
|
CryptoDevBackendSymSessionInfo *sym_sess_info;
|
|
|
|
CryptoDevBackendAsymSessionInfo *asym_sess_info;
|
2022-10-08 10:50:27 +02:00
|
|
|
int ret, status;
|
|
|
|
Error *local_error = NULL;
|
2016-10-28 10:33:23 +02:00
|
|
|
|
|
|
|
switch (sess_info->op_code) {
|
|
|
|
case VIRTIO_CRYPTO_CIPHER_CREATE_SESSION:
|
2022-06-11 08:42:43 +02:00
|
|
|
sym_sess_info = &sess_info->u.sym_sess_info;
|
2022-10-08 10:50:27 +02:00
|
|
|
ret = cryptodev_builtin_create_cipher_session(
|
|
|
|
builtin, sym_sess_info, &local_error);
|
|
|
|
break;
|
2022-06-11 08:42:43 +02:00
|
|
|
|
|
|
|
case VIRTIO_CRYPTO_AKCIPHER_CREATE_SESSION:
|
|
|
|
asym_sess_info = &sess_info->u.asym_sess_info;
|
2022-10-08 10:50:27 +02:00
|
|
|
ret = cryptodev_builtin_create_akcipher_session(
|
|
|
|
builtin, asym_sess_info, &local_error);
|
|
|
|
break;
|
2022-06-11 08:42:43 +02:00
|
|
|
|
2016-10-28 10:33:23 +02:00
|
|
|
case VIRTIO_CRYPTO_HASH_CREATE_SESSION:
|
|
|
|
case VIRTIO_CRYPTO_MAC_CREATE_SESSION:
|
|
|
|
default:
|
2022-10-08 10:50:27 +02:00
|
|
|
error_setg(&local_error, "Unsupported opcode :%" PRIu32 "",
|
2016-10-28 10:33:23 +02:00
|
|
|
sess_info->op_code);
|
2022-10-08 10:50:27 +02:00
|
|
|
return -VIRTIO_CRYPTO_NOTSUPP;
|
2016-10-28 10:33:23 +02:00
|
|
|
}
|
|
|
|
|
2022-10-08 10:50:27 +02:00
|
|
|
if (local_error) {
|
|
|
|
error_report_err(local_error);
|
|
|
|
}
|
|
|
|
if (ret < 0) {
|
|
|
|
status = -VIRTIO_CRYPTO_ERR;
|
|
|
|
} else {
|
|
|
|
sess_info->session_id = ret;
|
|
|
|
status = VIRTIO_CRYPTO_OK;
|
|
|
|
}
|
|
|
|
if (cb) {
|
|
|
|
cb(opaque, status);
|
|
|
|
}
|
|
|
|
return 0;
|
2016-10-28 10:33:23 +02:00
|
|
|
}
|
|
|
|
|
2022-06-11 08:42:43 +02:00
|
|
|
static int cryptodev_builtin_close_session(
|
2016-10-28 10:33:23 +02:00
|
|
|
CryptoDevBackend *backend,
|
|
|
|
uint64_t session_id,
|
2022-10-08 10:50:27 +02:00
|
|
|
uint32_t queue_index,
|
|
|
|
CryptoDevCompletionFunc cb,
|
|
|
|
void *opaque)
|
2016-10-28 10:33:23 +02:00
|
|
|
{
|
|
|
|
CryptoDevBackendBuiltin *builtin =
|
|
|
|
CRYPTODEV_BACKEND_BUILTIN(backend);
|
2022-06-11 08:42:43 +02:00
|
|
|
CryptoDevBackendBuiltinSession *session;
|
2016-10-28 10:33:23 +02:00
|
|
|
|
2020-04-22 15:07:06 +02:00
|
|
|
assert(session_id < MAX_NUM_SESSIONS && builtin->sessions[session_id]);
|
2016-10-28 10:33:23 +02:00
|
|
|
|
2022-06-11 08:42:43 +02:00
|
|
|
session = builtin->sessions[session_id];
|
|
|
|
if (session->cipher) {
|
|
|
|
qcrypto_cipher_free(session->cipher);
|
|
|
|
} else if (session->akcipher) {
|
|
|
|
qcrypto_akcipher_free(session->akcipher);
|
|
|
|
}
|
|
|
|
|
|
|
|
g_free(session);
|
2016-10-28 10:33:23 +02:00
|
|
|
builtin->sessions[session_id] = NULL;
|
2022-10-08 10:50:27 +02:00
|
|
|
if (cb) {
|
|
|
|
cb(opaque, VIRTIO_CRYPTO_OK);
|
|
|
|
}
|
2016-10-28 10:33:23 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cryptodev_builtin_sym_operation(
|
2022-06-11 08:42:43 +02:00
|
|
|
CryptoDevBackendBuiltinSession *sess,
|
|
|
|
CryptoDevBackendSymOpInfo *op_info, Error **errp)
|
2016-10-28 10:33:23 +02:00
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (op_info->op_type == VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING) {
|
|
|
|
error_setg(errp,
|
|
|
|
"Algorithm chain is unsupported for cryptdoev-builtin");
|
|
|
|
return -VIRTIO_CRYPTO_NOTSUPP;
|
|
|
|
}
|
|
|
|
|
2017-01-14 07:14:27 +01:00
|
|
|
if (op_info->iv_len > 0) {
|
|
|
|
ret = qcrypto_cipher_setiv(sess->cipher, op_info->iv,
|
|
|
|
op_info->iv_len, errp);
|
|
|
|
if (ret < 0) {
|
|
|
|
return -VIRTIO_CRYPTO_ERR;
|
|
|
|
}
|
2016-10-28 10:33:23 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (sess->direction == VIRTIO_CRYPTO_OP_ENCRYPT) {
|
|
|
|
ret = qcrypto_cipher_encrypt(sess->cipher, op_info->src,
|
|
|
|
op_info->dst, op_info->src_len, errp);
|
|
|
|
if (ret < 0) {
|
|
|
|
return -VIRTIO_CRYPTO_ERR;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ret = qcrypto_cipher_decrypt(sess->cipher, op_info->src,
|
|
|
|
op_info->dst, op_info->src_len, errp);
|
|
|
|
if (ret < 0) {
|
|
|
|
return -VIRTIO_CRYPTO_ERR;
|
|
|
|
}
|
|
|
|
}
|
2022-06-11 08:42:43 +02:00
|
|
|
|
|
|
|
return VIRTIO_CRYPTO_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cryptodev_builtin_asym_operation(
|
|
|
|
CryptoDevBackendBuiltinSession *sess, uint32_t op_code,
|
|
|
|
CryptoDevBackendAsymOpInfo *op_info, Error **errp)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
switch (op_code) {
|
|
|
|
case VIRTIO_CRYPTO_AKCIPHER_ENCRYPT:
|
|
|
|
ret = qcrypto_akcipher_encrypt(sess->akcipher,
|
|
|
|
op_info->src, op_info->src_len,
|
|
|
|
op_info->dst, op_info->dst_len, errp);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case VIRTIO_CRYPTO_AKCIPHER_DECRYPT:
|
|
|
|
ret = qcrypto_akcipher_decrypt(sess->akcipher,
|
|
|
|
op_info->src, op_info->src_len,
|
|
|
|
op_info->dst, op_info->dst_len, errp);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case VIRTIO_CRYPTO_AKCIPHER_SIGN:
|
|
|
|
ret = qcrypto_akcipher_sign(sess->akcipher,
|
|
|
|
op_info->src, op_info->src_len,
|
|
|
|
op_info->dst, op_info->dst_len, errp);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case VIRTIO_CRYPTO_AKCIPHER_VERIFY:
|
|
|
|
ret = qcrypto_akcipher_verify(sess->akcipher,
|
|
|
|
op_info->src, op_info->src_len,
|
|
|
|
op_info->dst, op_info->dst_len, errp);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return -VIRTIO_CRYPTO_ERR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ret < 0) {
|
|
|
|
if (op_code == VIRTIO_CRYPTO_AKCIPHER_VERIFY) {
|
|
|
|
return -VIRTIO_CRYPTO_KEY_REJECTED;
|
|
|
|
}
|
|
|
|
return -VIRTIO_CRYPTO_ERR;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Buffer is too short, typically the driver should handle this case */
|
|
|
|
if (unlikely(ret > op_info->dst_len)) {
|
|
|
|
if (errp && !*errp) {
|
|
|
|
error_setg(errp, "dst buffer too short");
|
|
|
|
}
|
|
|
|
|
|
|
|
return -VIRTIO_CRYPTO_ERR;
|
|
|
|
}
|
|
|
|
|
|
|
|
op_info->dst_len = ret;
|
|
|
|
|
2016-10-28 10:33:23 +02:00
|
|
|
return VIRTIO_CRYPTO_OK;
|
|
|
|
}
|
|
|
|
|
2022-06-11 08:42:43 +02:00
|
|
|
static int cryptodev_builtin_operation(
|
|
|
|
CryptoDevBackend *backend,
|
|
|
|
CryptoDevBackendOpInfo *op_info,
|
2022-10-08 10:50:27 +02:00
|
|
|
uint32_t queue_index,
|
|
|
|
CryptoDevCompletionFunc cb,
|
|
|
|
void *opaque)
|
2022-06-11 08:42:43 +02:00
|
|
|
{
|
|
|
|
CryptoDevBackendBuiltin *builtin =
|
|
|
|
CRYPTODEV_BACKEND_BUILTIN(backend);
|
|
|
|
CryptoDevBackendBuiltinSession *sess;
|
|
|
|
CryptoDevBackendSymOpInfo *sym_op_info;
|
|
|
|
CryptoDevBackendAsymOpInfo *asym_op_info;
|
|
|
|
enum CryptoDevBackendAlgType algtype = op_info->algtype;
|
2022-10-08 10:50:27 +02:00
|
|
|
int status = -VIRTIO_CRYPTO_ERR;
|
|
|
|
Error *local_error = NULL;
|
2022-06-11 08:42:43 +02:00
|
|
|
|
|
|
|
if (op_info->session_id >= MAX_NUM_SESSIONS ||
|
|
|
|
builtin->sessions[op_info->session_id] == NULL) {
|
2022-10-08 10:50:27 +02:00
|
|
|
error_setg(&local_error, "Cannot find a valid session id: %" PRIu64 "",
|
2022-06-11 08:42:43 +02:00
|
|
|
op_info->session_id);
|
|
|
|
return -VIRTIO_CRYPTO_INVSESS;
|
|
|
|
}
|
|
|
|
|
|
|
|
sess = builtin->sessions[op_info->session_id];
|
|
|
|
if (algtype == CRYPTODEV_BACKEND_ALG_SYM) {
|
|
|
|
sym_op_info = op_info->u.sym_op_info;
|
2022-10-08 10:50:27 +02:00
|
|
|
status = cryptodev_builtin_sym_operation(sess, sym_op_info,
|
|
|
|
&local_error);
|
2022-06-11 08:42:43 +02:00
|
|
|
} else if (algtype == CRYPTODEV_BACKEND_ALG_ASYM) {
|
|
|
|
asym_op_info = op_info->u.asym_op_info;
|
2022-10-08 10:50:27 +02:00
|
|
|
status = cryptodev_builtin_asym_operation(sess, op_info->op_code,
|
|
|
|
asym_op_info, &local_error);
|
2022-06-11 08:42:43 +02:00
|
|
|
}
|
|
|
|
|
2022-10-08 10:50:27 +02:00
|
|
|
if (local_error) {
|
|
|
|
error_report_err(local_error);
|
|
|
|
}
|
|
|
|
if (cb) {
|
|
|
|
cb(opaque, status);
|
|
|
|
}
|
|
|
|
return 0;
|
2022-06-11 08:42:43 +02:00
|
|
|
}
|
|
|
|
|
2016-10-28 10:33:23 +02:00
|
|
|
static void cryptodev_builtin_cleanup(
|
|
|
|
CryptoDevBackend *backend,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
CryptoDevBackendBuiltin *builtin =
|
|
|
|
CRYPTODEV_BACKEND_BUILTIN(backend);
|
|
|
|
size_t i;
|
|
|
|
int queues = backend->conf.peers.queues;
|
|
|
|
CryptoDevBackendClient *cc;
|
|
|
|
|
|
|
|
for (i = 0; i < MAX_NUM_SESSIONS; i++) {
|
|
|
|
if (builtin->sessions[i] != NULL) {
|
2022-10-08 10:50:27 +02:00
|
|
|
cryptodev_builtin_close_session(backend, i, 0, NULL, NULL);
|
2016-10-28 10:33:23 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < queues; i++) {
|
|
|
|
cc = backend->conf.peers.ccs[i];
|
|
|
|
if (cc) {
|
|
|
|
cryptodev_backend_free_client(cc);
|
|
|
|
backend->conf.peers.ccs[i] = NULL;
|
|
|
|
}
|
|
|
|
}
|
2016-12-22 04:12:39 +01:00
|
|
|
|
|
|
|
cryptodev_backend_set_ready(backend, false);
|
2016-10-28 10:33:23 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
cryptodev_builtin_class_init(ObjectClass *oc, void *data)
|
|
|
|
{
|
|
|
|
CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_CLASS(oc);
|
|
|
|
|
|
|
|
bc->init = cryptodev_builtin_init;
|
|
|
|
bc->cleanup = cryptodev_builtin_cleanup;
|
2022-06-11 08:42:43 +02:00
|
|
|
bc->create_session = cryptodev_builtin_create_session;
|
|
|
|
bc->close_session = cryptodev_builtin_close_session;
|
|
|
|
bc->do_op = cryptodev_builtin_operation;
|
2016-10-28 10:33:23 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static const TypeInfo cryptodev_builtin_info = {
|
|
|
|
.name = TYPE_CRYPTODEV_BACKEND_BUILTIN,
|
|
|
|
.parent = TYPE_CRYPTODEV_BACKEND,
|
|
|
|
.class_init = cryptodev_builtin_class_init,
|
|
|
|
.instance_size = sizeof(CryptoDevBackendBuiltin),
|
|
|
|
};
|
|
|
|
|
|
|
|
static void
|
|
|
|
cryptodev_builtin_register_types(void)
|
|
|
|
{
|
|
|
|
type_register_static(&cryptodev_builtin_info);
|
|
|
|
}
|
|
|
|
|
|
|
|
type_init(cryptodev_builtin_register_types);
|