2  * QEMU Cryptodev backend for QEMU cipher APIs
24 #include "qemu/osdep.h"
27 #include "qemu/error-report.h"
28 #include "hw/virtio/vhost-user.h"
29 #include "standard-headers/linux/virtio_crypto.h"
30 #include "sysemu/cryptodev-vhost.h"
31 #include "chardev/char-fe.h"
32 #include "sysemu/cryptodev-vhost-user.h"
40 #define TYPE_CRYPTODEV_BACKEND_VHOST_USER "cryptodev-vhost-user"
70     assert(cc->type == QCRYPTODEV_BACKEND_TYPE_VHOST_USER);  in cryptodev_vhost_user_get_vhost()
73     return s->vhost_crypto[queue];  in cryptodev_vhost_user_get_vhost()
82         if (!cryptodev_vhost_user_running(s->vhost_crypto[i])) {  in cryptodev_vhost_user_stop()
86         cryptodev_vhost_cleanup(s->vhost_crypto[i]);  in cryptodev_vhost_user_stop()
87         s->vhost_crypto[i] = NULL;  in cryptodev_vhost_user_stop()
101         if (cryptodev_vhost_user_running(s->vhost_crypto[i])) {  in cryptodev_vhost_user_start()
105         options.opaque = &s->vhost_user;  in cryptodev_vhost_user_start()
107         options.cc = b->conf.peers.ccs[i];  in cryptodev_vhost_user_start()
108         s->vhost_crypto[i] = cryptodev_vhost_init(&options);  in cryptodev_vhost_user_start()
109         if (!s->vhost_crypto[i]) {  in cryptodev_vhost_user_start()
116               cryptodev_vhost_get_max_queues(s->vhost_crypto[i]);  in cryptodev_vhost_user_start()
129     return -1;  in cryptodev_vhost_user_start()
138     if (s->chr_name == NULL) {  in cryptodev_vhost_claim_chardev()
144     chr = qemu_chr_find(s->chr_name);  in cryptodev_vhost_claim_chardev()
147                   "Device '%s' not found", s->chr_name);  in cryptodev_vhost_claim_chardev()
158     int queues = b->conf.peers.queues;  in cryptodev_vhost_user_event()
167         b->ready = true;  in cryptodev_vhost_user_event()
170         b->ready = false;  in cryptodev_vhost_user_event()
184     int queues = backend->conf.peers.queues;  in cryptodev_vhost_user_init()
198     s->opened = true;  in cryptodev_vhost_user_init()
202         cc->info_str = g_strdup_printf("cryptodev-vhost-user%zu to %s ",  in cryptodev_vhost_user_init()
203                                        i, chr->label);  in cryptodev_vhost_user_init()
204         cc->queue_index = i;  in cryptodev_vhost_user_init()
205         cc->type = QCRYPTODEV_BACKEND_TYPE_VHOST_USER;  in cryptodev_vhost_user_init()
207         backend->conf.peers.ccs[i] = cc;  in cryptodev_vhost_user_init()
210             if (!qemu_chr_fe_init(&s->chr, chr, errp)) {  in cryptodev_vhost_user_init()
216     if (!vhost_user_init(&s->vhost_user, &s->chr, errp)) {  in cryptodev_vhost_user_init()
220     qemu_chr_fe_set_handlers(&s->chr, NULL, NULL,  in cryptodev_vhost_user_init()
223     backend->conf.crypto_services =  in cryptodev_vhost_user_init()
227     backend->conf.cipher_algo_l = 1u << VIRTIO_CRYPTO_CIPHER_AES_CBC;  in cryptodev_vhost_user_init()
228     backend->conf.hash_algo = 1u << VIRTIO_CRYPTO_HASH_SHA1;  in cryptodev_vhost_user_init()
230     backend->conf.max_size = UINT64_MAX;  in cryptodev_vhost_user_init()
231     backend->conf.max_cipher_key_len = VHOST_USER_MAX_CIPHER_KEY_LEN;  in cryptodev_vhost_user_init()
232     backend->conf.max_auth_key_len = VHOST_USER_MAX_AUTH_KEY_LEN;  in cryptodev_vhost_user_init()
241                    backend->conf.peers.ccs[queue_index];  in cryptodev_vhost_user_crypto_create_session()
248         struct vhost_dev *dev = &(vhost_crypto->dev);  in cryptodev_vhost_user_crypto_create_session()
249         ret = dev->vhost_ops->vhost_crypto_create_session(dev,  in cryptodev_vhost_user_crypto_create_session()
253             return -1;  in cryptodev_vhost_user_crypto_create_session()
258     return -1;  in cryptodev_vhost_user_crypto_create_session()
268     uint32_t op_code = sess_info->op_code;  in cryptodev_vhost_user_create_session()
285                    sess_info->op_code);  in cryptodev_vhost_user_create_session()
286         return -VIRTIO_CRYPTO_NOTSUPP;  in cryptodev_vhost_user_create_session()
293         status = -VIRTIO_CRYPTO_ERR;  in cryptodev_vhost_user_create_session()
295         sess_info->session_id = ret;  in cryptodev_vhost_user_create_session()
312                   backend->conf.peers.ccs[queue_index];  in cryptodev_vhost_user_close_session()
314     int ret = -1, status;  in cryptodev_vhost_user_close_session()
318         struct vhost_dev *dev = &(vhost_crypto->dev);  in cryptodev_vhost_user_close_session()
319         ret = dev->vhost_ops->vhost_crypto_close_session(dev,  in cryptodev_vhost_user_close_session()
322             status = -VIRTIO_CRYPTO_ERR;  in cryptodev_vhost_user_close_session()
327         status = -VIRTIO_CRYPTO_NOTSUPP;  in cryptodev_vhost_user_close_session()
342     int queues = backend->conf.peers.queues;  in cryptodev_vhost_user_cleanup()
348         cc = backend->conf.peers.ccs[i];  in cryptodev_vhost_user_cleanup()
351             backend->conf.peers.ccs[i] = NULL;  in cryptodev_vhost_user_cleanup()
355     vhost_user_cleanup(&s->vhost_user);  in cryptodev_vhost_user_cleanup()
364     if (s->opened) {  in cryptodev_vhost_user_set_chardev()
367         g_free(s->chr_name);  in cryptodev_vhost_user_set_chardev()
368         s->chr_name = g_strdup(value);  in cryptodev_vhost_user_set_chardev()
377     Chardev *chr = qemu_chr_fe_get_driver(&s->chr);  in cryptodev_vhost_user_get_chardev()
379     if (chr && chr->label) {  in cryptodev_vhost_user_get_chardev()
380         return g_strdup(chr->label);  in cryptodev_vhost_user_get_chardev()
391     qemu_chr_fe_deinit(&s->chr, false);  in cryptodev_vhost_user_finalize()
393     g_free(s->chr_name);  in cryptodev_vhost_user_finalize()
401     bc->init = cryptodev_vhost_user_init;  in cryptodev_vhost_user_class_init()
402     bc->cleanup = cryptodev_vhost_user_cleanup;  in cryptodev_vhost_user_class_init()
403     bc->create_session = cryptodev_vhost_user_create_session;  in cryptodev_vhost_user_class_init()
404     bc->close_session = cryptodev_vhost_user_close_session;  in cryptodev_vhost_user_class_init()
405     bc->do_op = NULL;  in cryptodev_vhost_user_class_init()