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![Chetan Pant](/assets/img/avatar_default.png)
There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section. Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20201014133722.14041-1-chetan4windows@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
256 lines
6.7 KiB
C
256 lines
6.7 KiB
C
/*
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* QEMU Crypto Device Implementation
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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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* version 2.1 of the License, or (at your option) any later version.
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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 "qapi/visitor.h"
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#include "qemu/config-file.h"
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#include "qom/object_interfaces.h"
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#include "hw/virtio/virtio-crypto.h"
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static QTAILQ_HEAD(, CryptoDevBackendClient) crypto_clients;
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CryptoDevBackendClient *
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cryptodev_backend_new_client(const char *model,
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const char *name)
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{
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CryptoDevBackendClient *cc;
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cc = g_malloc0(sizeof(CryptoDevBackendClient));
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cc->model = g_strdup(model);
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if (name) {
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cc->name = g_strdup(name);
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}
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QTAILQ_INSERT_TAIL(&crypto_clients, cc, next);
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return cc;
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}
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void cryptodev_backend_free_client(
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CryptoDevBackendClient *cc)
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{
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QTAILQ_REMOVE(&crypto_clients, cc, next);
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g_free(cc->name);
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g_free(cc->model);
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g_free(cc->info_str);
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g_free(cc);
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}
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void cryptodev_backend_cleanup(
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CryptoDevBackend *backend,
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Error **errp)
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{
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CryptoDevBackendClass *bc =
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CRYPTODEV_BACKEND_GET_CLASS(backend);
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if (bc->cleanup) {
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bc->cleanup(backend, errp);
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}
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}
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int64_t cryptodev_backend_sym_create_session(
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CryptoDevBackend *backend,
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CryptoDevBackendSymSessionInfo *sess_info,
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uint32_t queue_index, Error **errp)
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{
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CryptoDevBackendClass *bc =
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CRYPTODEV_BACKEND_GET_CLASS(backend);
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if (bc->create_session) {
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return bc->create_session(backend, sess_info, queue_index, errp);
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}
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return -1;
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}
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int cryptodev_backend_sym_close_session(
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CryptoDevBackend *backend,
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uint64_t session_id,
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uint32_t queue_index, Error **errp)
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{
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CryptoDevBackendClass *bc =
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CRYPTODEV_BACKEND_GET_CLASS(backend);
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if (bc->close_session) {
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return bc->close_session(backend, session_id, queue_index, errp);
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}
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return -1;
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}
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static int cryptodev_backend_sym_operation(
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CryptoDevBackend *backend,
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CryptoDevBackendSymOpInfo *op_info,
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uint32_t queue_index, Error **errp)
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{
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CryptoDevBackendClass *bc =
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CRYPTODEV_BACKEND_GET_CLASS(backend);
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if (bc->do_sym_op) {
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return bc->do_sym_op(backend, op_info, queue_index, errp);
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}
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return -VIRTIO_CRYPTO_ERR;
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}
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int cryptodev_backend_crypto_operation(
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CryptoDevBackend *backend,
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void *opaque,
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uint32_t queue_index, Error **errp)
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{
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VirtIOCryptoReq *req = opaque;
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if (req->flags == CRYPTODEV_BACKEND_ALG_SYM) {
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CryptoDevBackendSymOpInfo *op_info;
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op_info = req->u.sym_op_info;
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return cryptodev_backend_sym_operation(backend,
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op_info, queue_index, errp);
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} else {
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error_setg(errp, "Unsupported cryptodev alg type: %" PRIu32 "",
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req->flags);
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return -VIRTIO_CRYPTO_NOTSUPP;
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}
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return -VIRTIO_CRYPTO_ERR;
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}
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static void
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cryptodev_backend_get_queues(Object *obj, Visitor *v, const char *name,
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void *opaque, Error **errp)
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{
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CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
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uint32_t value = backend->conf.peers.queues;
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visit_type_uint32(v, name, &value, errp);
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}
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static void
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cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name,
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void *opaque, Error **errp)
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{
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CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
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uint32_t value;
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if (!visit_type_uint32(v, name, &value, errp)) {
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return;
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}
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if (!value) {
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error_setg(errp, "Property '%s.%s' doesn't take value '%" PRIu32 "'",
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object_get_typename(obj), name, value);
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return;
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}
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backend->conf.peers.queues = value;
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}
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static void
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cryptodev_backend_complete(UserCreatable *uc, Error **errp)
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{
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CryptoDevBackend *backend = CRYPTODEV_BACKEND(uc);
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CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_GET_CLASS(uc);
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if (bc->init) {
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bc->init(backend, errp);
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}
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}
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void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used)
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{
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backend->is_used = used;
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}
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bool cryptodev_backend_is_used(CryptoDevBackend *backend)
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{
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return backend->is_used;
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}
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void cryptodev_backend_set_ready(CryptoDevBackend *backend, bool ready)
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{
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backend->ready = ready;
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}
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bool cryptodev_backend_is_ready(CryptoDevBackend *backend)
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{
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return backend->ready;
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}
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static bool
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cryptodev_backend_can_be_deleted(UserCreatable *uc)
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{
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return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
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}
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static void cryptodev_backend_instance_init(Object *obj)
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{
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/* Initialize devices' queues property to 1 */
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object_property_set_int(obj, "queues", 1, NULL);
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}
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static void cryptodev_backend_finalize(Object *obj)
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{
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CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
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cryptodev_backend_cleanup(backend, NULL);
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}
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static void
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cryptodev_backend_class_init(ObjectClass *oc, void *data)
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{
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UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
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ucc->complete = cryptodev_backend_complete;
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ucc->can_be_deleted = cryptodev_backend_can_be_deleted;
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QTAILQ_INIT(&crypto_clients);
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object_class_property_add(oc, "queues", "uint32",
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cryptodev_backend_get_queues,
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cryptodev_backend_set_queues,
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NULL, NULL);
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}
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static const TypeInfo cryptodev_backend_info = {
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.name = TYPE_CRYPTODEV_BACKEND,
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.parent = TYPE_OBJECT,
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.instance_size = sizeof(CryptoDevBackend),
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.instance_init = cryptodev_backend_instance_init,
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.instance_finalize = cryptodev_backend_finalize,
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.class_size = sizeof(CryptoDevBackendClass),
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.class_init = cryptodev_backend_class_init,
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.interfaces = (InterfaceInfo[]) {
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{ TYPE_USER_CREATABLE },
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{ }
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}
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};
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static void
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cryptodev_backend_register_types(void)
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{
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type_register_static(&cryptodev_backend_info);
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}
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type_init(cryptodev_backend_register_types);
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