vhost-user-test: create a temporary directory per TestServer
[qemu/ar7.git] / backends / cryptodev.c
blobf35be377efa4bd0fb89f4586071858a32b9b7af1
1 /*
2 * QEMU Crypto Device Implementation
4 * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
6 * Authors:
7 * Gonglei <arei.gonglei@huawei.com>
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
12 * version 2 of the License, or (at your option) any later version.
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.
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/>.
24 #include "qemu/osdep.h"
25 #include "sysemu/cryptodev.h"
26 #include "hw/boards.h"
27 #include "qapi/error.h"
28 #include "qapi/visitor.h"
29 #include "qemu/config-file.h"
30 #include "qom/object_interfaces.h"
31 #include "hw/virtio/virtio-crypto.h"
34 static QTAILQ_HEAD(, CryptoDevBackendClient) crypto_clients;
37 CryptoDevBackendClient *
38 cryptodev_backend_new_client(const char *model,
39 const char *name)
41 CryptoDevBackendClient *cc;
43 cc = g_malloc0(sizeof(CryptoDevBackendClient));
44 cc->model = g_strdup(model);
45 if (name) {
46 cc->name = g_strdup(name);
49 QTAILQ_INSERT_TAIL(&crypto_clients, cc, next);
51 return cc;
54 void cryptodev_backend_free_client(
55 CryptoDevBackendClient *cc)
57 QTAILQ_REMOVE(&crypto_clients, cc, next);
58 g_free(cc->name);
59 g_free(cc->model);
60 g_free(cc->info_str);
61 g_free(cc);
64 void cryptodev_backend_cleanup(
65 CryptoDevBackend *backend,
66 Error **errp)
68 CryptoDevBackendClass *bc =
69 CRYPTODEV_BACKEND_GET_CLASS(backend);
71 if (bc->cleanup) {
72 bc->cleanup(backend, errp);
76 int64_t cryptodev_backend_sym_create_session(
77 CryptoDevBackend *backend,
78 CryptoDevBackendSymSessionInfo *sess_info,
79 uint32_t queue_index, Error **errp)
81 CryptoDevBackendClass *bc =
82 CRYPTODEV_BACKEND_GET_CLASS(backend);
84 if (bc->create_session) {
85 return bc->create_session(backend, sess_info, queue_index, errp);
88 return -1;
91 int cryptodev_backend_sym_close_session(
92 CryptoDevBackend *backend,
93 uint64_t session_id,
94 uint32_t queue_index, Error **errp)
96 CryptoDevBackendClass *bc =
97 CRYPTODEV_BACKEND_GET_CLASS(backend);
99 if (bc->close_session) {
100 return bc->close_session(backend, session_id, queue_index, errp);
103 return -1;
106 static int cryptodev_backend_sym_operation(
107 CryptoDevBackend *backend,
108 CryptoDevBackendSymOpInfo *op_info,
109 uint32_t queue_index, Error **errp)
111 CryptoDevBackendClass *bc =
112 CRYPTODEV_BACKEND_GET_CLASS(backend);
114 if (bc->do_sym_op) {
115 return bc->do_sym_op(backend, op_info, queue_index, errp);
118 return -VIRTIO_CRYPTO_ERR;
121 int cryptodev_backend_crypto_operation(
122 CryptoDevBackend *backend,
123 void *opaque,
124 uint32_t queue_index, Error **errp)
126 VirtIOCryptoReq *req = opaque;
128 if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) {
129 CryptoDevBackendSymOpInfo *op_info;
130 op_info = req->u.sym_op_info;
132 return cryptodev_backend_sym_operation(backend,
133 op_info, queue_index, errp);
134 } else {
135 error_setg(errp, "Unsupported cryptodev alg type: %" PRIu32 "",
136 req->flags);
137 return -VIRTIO_CRYPTO_NOTSUPP;
140 return -VIRTIO_CRYPTO_ERR;
143 static void
144 cryptodev_backend_get_queues(Object *obj, Visitor *v, const char *name,
145 void *opaque, Error **errp)
147 CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
148 uint32_t value = backend->conf.peers.queues;
150 visit_type_uint32(v, name, &value, errp);
153 static void
154 cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name,
155 void *opaque, Error **errp)
157 CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
158 Error *local_err = NULL;
159 uint32_t value;
161 visit_type_uint32(v, name, &value, &local_err);
162 if (local_err) {
163 goto out;
165 if (!value) {
166 error_setg(&local_err, "Property '%s.%s' doesn't take value '%"
167 PRIu32 "'", object_get_typename(obj), name, value);
168 goto out;
170 backend->conf.peers.queues = value;
171 out:
172 error_propagate(errp, local_err);
175 static void
176 cryptodev_backend_complete(UserCreatable *uc, Error **errp)
178 CryptoDevBackend *backend = CRYPTODEV_BACKEND(uc);
179 CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_GET_CLASS(uc);
180 Error *local_err = NULL;
182 if (bc->init) {
183 bc->init(backend, &local_err);
184 if (local_err) {
185 goto out;
189 return;
191 out:
192 error_propagate(errp, local_err);
195 void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used)
197 backend->is_used = used;
200 bool cryptodev_backend_is_used(CryptoDevBackend *backend)
202 return backend->is_used;
205 void cryptodev_backend_set_ready(CryptoDevBackend *backend, bool ready)
207 backend->ready = ready;
210 bool cryptodev_backend_is_ready(CryptoDevBackend *backend)
212 return backend->ready;
215 static bool
216 cryptodev_backend_can_be_deleted(UserCreatable *uc)
218 return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
221 static void cryptodev_backend_instance_init(Object *obj)
223 object_property_add(obj, "queues", "uint32",
224 cryptodev_backend_get_queues,
225 cryptodev_backend_set_queues,
226 NULL, NULL, NULL);
227 /* Initialize devices' queues property to 1 */
228 object_property_set_int(obj, 1, "queues", NULL);
231 static void cryptodev_backend_finalize(Object *obj)
233 CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
235 cryptodev_backend_cleanup(backend, NULL);
238 static void
239 cryptodev_backend_class_init(ObjectClass *oc, void *data)
241 UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
243 ucc->complete = cryptodev_backend_complete;
244 ucc->can_be_deleted = cryptodev_backend_can_be_deleted;
246 QTAILQ_INIT(&crypto_clients);
249 static const TypeInfo cryptodev_backend_info = {
250 .name = TYPE_CRYPTODEV_BACKEND,
251 .parent = TYPE_OBJECT,
252 .instance_size = sizeof(CryptoDevBackend),
253 .instance_init = cryptodev_backend_instance_init,
254 .instance_finalize = cryptodev_backend_finalize,
255 .class_size = sizeof(CryptoDevBackendClass),
256 .class_init = cryptodev_backend_class_init,
257 .interfaces = (InterfaceInfo[]) {
258 { TYPE_USER_CREATABLE },
263 static void
264 cryptodev_backend_register_types(void)
266 type_register_static(&cryptodev_backend_info);
269 type_init(cryptodev_backend_register_types);