Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 1 | /* |
| 2 | * QEMU Crypto Device Implementation |
| 3 | * |
| 4 | * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. |
| 5 | * |
| 6 | * Authors: |
| 7 | * Gonglei <arei.gonglei@huawei.com> |
| 8 | * |
| 9 | * This library is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU Lesser General Public |
| 11 | * License as published by the Free Software Foundation; either |
Chetan Pant | 0dda001 | 2020-10-14 13:37:22 +0000 | [diff] [blame] | 12 | * version 2.1 of the License, or (at your option) any later version. |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 13 | * |
| 14 | * This library is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public |
| 20 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include "qemu/osdep.h" |
| 25 | #include "sysemu/cryptodev.h" |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 26 | #include "qapi/error.h" |
| 27 | #include "qapi/visitor.h" |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 28 | #include "qemu/config-file.h" |
| 29 | #include "qom/object_interfaces.h" |
Gonglei | d6634ac | 2016-10-28 16:33:29 +0800 | [diff] [blame] | 30 | #include "hw/virtio/virtio-crypto.h" |
| 31 | |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 32 | |
| 33 | static QTAILQ_HEAD(, CryptoDevBackendClient) crypto_clients; |
| 34 | |
| 35 | |
| 36 | CryptoDevBackendClient * |
| 37 | cryptodev_backend_new_client(const char *model, |
| 38 | const char *name) |
| 39 | { |
| 40 | CryptoDevBackendClient *cc; |
| 41 | |
| 42 | cc = g_malloc0(sizeof(CryptoDevBackendClient)); |
| 43 | cc->model = g_strdup(model); |
| 44 | if (name) { |
| 45 | cc->name = g_strdup(name); |
| 46 | } |
| 47 | |
| 48 | QTAILQ_INSERT_TAIL(&crypto_clients, cc, next); |
| 49 | |
| 50 | return cc; |
| 51 | } |
| 52 | |
| 53 | void cryptodev_backend_free_client( |
| 54 | CryptoDevBackendClient *cc) |
| 55 | { |
| 56 | QTAILQ_REMOVE(&crypto_clients, cc, next); |
| 57 | g_free(cc->name); |
| 58 | g_free(cc->model); |
| 59 | g_free(cc->info_str); |
| 60 | g_free(cc); |
| 61 | } |
| 62 | |
| 63 | void cryptodev_backend_cleanup( |
| 64 | CryptoDevBackend *backend, |
| 65 | Error **errp) |
| 66 | { |
| 67 | CryptoDevBackendClass *bc = |
| 68 | CRYPTODEV_BACKEND_GET_CLASS(backend); |
| 69 | |
| 70 | if (bc->cleanup) { |
| 71 | bc->cleanup(backend, errp); |
| 72 | } |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 73 | } |
| 74 | |
Gonglei | 9e4f86a | 2016-10-28 16:33:21 +0800 | [diff] [blame] | 75 | int64_t cryptodev_backend_sym_create_session( |
| 76 | CryptoDevBackend *backend, |
| 77 | CryptoDevBackendSymSessionInfo *sess_info, |
| 78 | uint32_t queue_index, Error **errp) |
| 79 | { |
| 80 | CryptoDevBackendClass *bc = |
| 81 | CRYPTODEV_BACKEND_GET_CLASS(backend); |
| 82 | |
| 83 | if (bc->create_session) { |
| 84 | return bc->create_session(backend, sess_info, queue_index, errp); |
| 85 | } |
| 86 | |
| 87 | return -1; |
| 88 | } |
| 89 | |
| 90 | int cryptodev_backend_sym_close_session( |
| 91 | CryptoDevBackend *backend, |
| 92 | uint64_t session_id, |
| 93 | uint32_t queue_index, Error **errp) |
| 94 | { |
| 95 | CryptoDevBackendClass *bc = |
| 96 | CRYPTODEV_BACKEND_GET_CLASS(backend); |
| 97 | |
| 98 | if (bc->close_session) { |
| 99 | return bc->close_session(backend, session_id, queue_index, errp); |
| 100 | } |
| 101 | |
| 102 | return -1; |
| 103 | } |
| 104 | |
Gonglei | d6634ac | 2016-10-28 16:33:29 +0800 | [diff] [blame] | 105 | static int cryptodev_backend_sym_operation( |
Gonglei | 9e4f86a | 2016-10-28 16:33:21 +0800 | [diff] [blame] | 106 | CryptoDevBackend *backend, |
| 107 | CryptoDevBackendSymOpInfo *op_info, |
| 108 | uint32_t queue_index, Error **errp) |
| 109 | { |
| 110 | CryptoDevBackendClass *bc = |
| 111 | CRYPTODEV_BACKEND_GET_CLASS(backend); |
| 112 | |
| 113 | if (bc->do_sym_op) { |
| 114 | return bc->do_sym_op(backend, op_info, queue_index, errp); |
| 115 | } |
| 116 | |
Gonglei | d6634ac | 2016-10-28 16:33:29 +0800 | [diff] [blame] | 117 | return -VIRTIO_CRYPTO_ERR; |
| 118 | } |
| 119 | |
| 120 | int cryptodev_backend_crypto_operation( |
| 121 | CryptoDevBackend *backend, |
| 122 | void *opaque, |
| 123 | uint32_t queue_index, Error **errp) |
| 124 | { |
| 125 | VirtIOCryptoReq *req = opaque; |
| 126 | |
| 127 | if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) { |
| 128 | CryptoDevBackendSymOpInfo *op_info; |
| 129 | op_info = req->u.sym_op_info; |
| 130 | |
| 131 | return cryptodev_backend_sym_operation(backend, |
| 132 | op_info, queue_index, errp); |
| 133 | } else { |
| 134 | error_setg(errp, "Unsupported cryptodev alg type: %" PRIu32 "", |
| 135 | req->flags); |
| 136 | return -VIRTIO_CRYPTO_NOTSUPP; |
| 137 | } |
| 138 | |
| 139 | return -VIRTIO_CRYPTO_ERR; |
Gonglei | 9e4f86a | 2016-10-28 16:33:21 +0800 | [diff] [blame] | 140 | } |
| 141 | |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 142 | static void |
| 143 | cryptodev_backend_get_queues(Object *obj, Visitor *v, const char *name, |
| 144 | void *opaque, Error **errp) |
| 145 | { |
| 146 | CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); |
| 147 | uint32_t value = backend->conf.peers.queues; |
| 148 | |
| 149 | visit_type_uint32(v, name, &value, errp); |
| 150 | } |
| 151 | |
| 152 | static void |
| 153 | cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name, |
| 154 | void *opaque, Error **errp) |
| 155 | { |
| 156 | CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 157 | uint32_t value; |
| 158 | |
Markus Armbruster | 668f62e | 2020-07-07 18:06:02 +0200 | [diff] [blame] | 159 | if (!visit_type_uint32(v, name, &value, errp)) { |
Markus Armbruster | dcfe480 | 2020-07-07 18:06:01 +0200 | [diff] [blame] | 160 | return; |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 161 | } |
| 162 | if (!value) { |
Markus Armbruster | dcfe480 | 2020-07-07 18:06:01 +0200 | [diff] [blame] | 163 | error_setg(errp, "Property '%s.%s' doesn't take value '%" PRIu32 "'", |
| 164 | object_get_typename(obj), name, value); |
| 165 | return; |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 166 | } |
| 167 | backend->conf.peers.queues = value; |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 168 | } |
| 169 | |
| 170 | static void |
| 171 | cryptodev_backend_complete(UserCreatable *uc, Error **errp) |
| 172 | { |
| 173 | CryptoDevBackend *backend = CRYPTODEV_BACKEND(uc); |
| 174 | CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_GET_CLASS(uc); |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 175 | |
| 176 | if (bc->init) { |
Vladimir Sementsov-Ogievskiy | 7dc75ed | 2019-12-05 20:46:33 +0300 | [diff] [blame] | 177 | bc->init(backend, errp); |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 178 | } |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 179 | } |
| 180 | |
Gonglei | 46fd170 | 2016-12-22 11:12:38 +0800 | [diff] [blame] | 181 | void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used) |
| 182 | { |
| 183 | backend->is_used = used; |
| 184 | } |
| 185 | |
| 186 | bool cryptodev_backend_is_used(CryptoDevBackend *backend) |
| 187 | { |
| 188 | return backend->is_used; |
| 189 | } |
| 190 | |
Gonglei | 6138dbd | 2016-12-22 11:12:39 +0800 | [diff] [blame] | 191 | void cryptodev_backend_set_ready(CryptoDevBackend *backend, bool ready) |
| 192 | { |
| 193 | backend->ready = ready; |
| 194 | } |
| 195 | |
| 196 | bool cryptodev_backend_is_ready(CryptoDevBackend *backend) |
| 197 | { |
| 198 | return backend->ready; |
| 199 | } |
| 200 | |
Gonglei | 46fd170 | 2016-12-22 11:12:38 +0800 | [diff] [blame] | 201 | static bool |
Eduardo Habkost | 3beacfb | 2017-08-29 19:03:37 -0300 | [diff] [blame] | 202 | cryptodev_backend_can_be_deleted(UserCreatable *uc) |
Gonglei | 46fd170 | 2016-12-22 11:12:38 +0800 | [diff] [blame] | 203 | { |
| 204 | return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc)); |
| 205 | } |
| 206 | |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 207 | static void cryptodev_backend_instance_init(Object *obj) |
| 208 | { |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 209 | /* Initialize devices' queues property to 1 */ |
Markus Armbruster | 5325cc3 | 2020-07-07 18:05:54 +0200 | [diff] [blame] | 210 | object_property_set_int(obj, "queues", 1, NULL); |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | static void cryptodev_backend_finalize(Object *obj) |
| 214 | { |
Gonglei | 46fd170 | 2016-12-22 11:12:38 +0800 | [diff] [blame] | 215 | CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj); |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 216 | |
Gonglei | 46fd170 | 2016-12-22 11:12:38 +0800 | [diff] [blame] | 217 | cryptodev_backend_cleanup(backend, NULL); |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | static void |
| 221 | cryptodev_backend_class_init(ObjectClass *oc, void *data) |
| 222 | { |
| 223 | UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); |
| 224 | |
| 225 | ucc->complete = cryptodev_backend_complete; |
Gonglei | 46fd170 | 2016-12-22 11:12:38 +0800 | [diff] [blame] | 226 | ucc->can_be_deleted = cryptodev_backend_can_be_deleted; |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 227 | |
| 228 | QTAILQ_INIT(&crypto_clients); |
Eduardo Habkost | 1f14e38 | 2020-09-21 18:10:23 -0400 | [diff] [blame] | 229 | object_class_property_add(oc, "queues", "uint32", |
| 230 | cryptodev_backend_get_queues, |
| 231 | cryptodev_backend_set_queues, |
| 232 | NULL, NULL); |
Gonglei | d0ee7a1 | 2016-10-28 16:33:20 +0800 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | static const TypeInfo cryptodev_backend_info = { |
| 236 | .name = TYPE_CRYPTODEV_BACKEND, |
| 237 | .parent = TYPE_OBJECT, |
| 238 | .instance_size = sizeof(CryptoDevBackend), |
| 239 | .instance_init = cryptodev_backend_instance_init, |
| 240 | .instance_finalize = cryptodev_backend_finalize, |
| 241 | .class_size = sizeof(CryptoDevBackendClass), |
| 242 | .class_init = cryptodev_backend_class_init, |
| 243 | .interfaces = (InterfaceInfo[]) { |
| 244 | { TYPE_USER_CREATABLE }, |
| 245 | { } |
| 246 | } |
| 247 | }; |
| 248 | |
| 249 | static void |
| 250 | cryptodev_backend_register_types(void) |
| 251 | { |
| 252 | type_register_static(&cryptodev_backend_info); |
| 253 | } |
| 254 | |
| 255 | type_init(cryptodev_backend_register_types); |