This patch add session operation and crypto operation
stuff in the cryptodev backend, including function
pointers and correpsonding structures.
Signed-off-by: Gonglei <arei.gong...@huawei.com>
---
crypto/cryptodev.c | 44 +++++++++++++++
include/crypto/cryptodev.h | 132 ++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 175 insertions(+), 1 deletion(-)
diff --git a/crypto/cryptodev.c b/crypto/cryptodev.c
index 658a018..0b3d55e 100644
--- a/crypto/cryptodev.c
+++ b/crypto/cryptodev.c
@@ -74,6 +74,50 @@ void qcrypto_cryptodev_backend_cleanup(
backend->ready = 0;
}
+int64_t qcrypto_cryptodev_backend_sym_create_session(
+ QCryptoCryptoDevBackend *backend,
+ QCryptoCryptoDevBackendSymSessionInfo *sess_info,
+ uint32_t queue_index, Error **errp)
+{
+ QCryptoCryptoDevBackendClass *bc =
+ QCRYPTO_CRYPTODEV_BACKEND_GET_CLASS(backend);
+
+ if (bc->create_session) {
+ return bc->create_session(backend, sess_info, queue_index, errp);
+ }
+
+ return -1;
+}
+
+int qcrypto_cryptodev_backend_sym_close_session(
+ QCryptoCryptoDevBackend *backend,
+ uint64_t session_id, Error **errp)
+{
+ QCryptoCryptoDevBackendClass *bc =
+ QCRYPTO_CRYPTODEV_BACKEND_GET_CLASS(backend);
+
+ if (bc->close_session) {
+ return bc->close_session(backend, session_id, errp);
+ }
+
+ return -1;
+}
+
+int qcrypto_cryptodev_backend_sym_operation(
+ QCryptoCryptoDevBackend *backend,
+ QCryptoCryptoDevBackendSymOpInfo *op_info,
+ uint32_t queue_index, Error **errp)
+{
+ QCryptoCryptoDevBackendClass *bc =
+ QCRYPTO_CRYPTODEV_BACKEND_GET_CLASS(backend);
+
+ if (bc->do_sym_op) {
+ return bc->do_sym_op(backend, op_info, queue_index, errp);
+ }
+
+ return -1;
+}
+
static void
qcrypto_cryptodev_backend_get_queues(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
diff --git a/include/crypto/cryptodev.h b/include/crypto/cryptodev.h
index 344dc91..7fcdc2f 100644
--- a/include/crypto/cryptodev.h
+++ b/include/crypto/cryptodev.h
@@ -56,12 +56,94 @@ typedef struct QCryptoCryptoDevBackendClientState
QCryptoCryptoDevBackendClientState;
typedef struct QCryptoCryptoDevBackend QCryptoCryptoDevBackend;
+enum QCryptoCryptoDevBackendAlgType {
+ QCRYPTO_CRYPTODEV_BACKEND_ALG_SYM,
+ QCRYPTO_CRYPTODEV_BACKEND_ALG__MAX,
+};
+
+/**
+ * QCryptoCryptoDevBackendSymSessionInfo:
+ *
+ * @op_code: operation code (refer to virtio_crypto.h)
+ * @cipher_alg: algorithm type of CIPHER
+ * @key_len: byte length of cipher key
+ * @hash_alg: algorithm type of HASH/MAC
+ * @hash_result_len: byte length of HASH operation result
+ * @auth_key_len: byte length of authenticated key
+ * @add_len: byte length of additional authenticated data
+ * @op_type: operation type (refer to virtio_crypto.h)
+ * @direction: encryption or direction for CIPHER
+ * @hash_mode: HASH mode for HASH operation (refer to virtio_crypto.h)
+ * @alg_chain_order: order of algorithm chaining (CIPHER then HASH,
+ * or HASH then CIPHER)
+ * @cipher_key: pointer to a key of CIPHER
+ * @auth_key: pointer to an authenticated key of MAC
+ *
+ */
+typedef struct QCryptoCryptoDevBackendSymSessionInfo {
+ /* corresponding with virtio crypto spec */
+ uint32_t op_code;
+ uint32_t cipher_alg;
+ uint32_t key_len;
+ uint32_t hash_alg;
+ uint32_t hash_result_len;
+ uint32_t auth_key_len;
+ uint32_t add_len;
+ uint8_t op_type;
+ uint8_t direction;
+ uint8_t hash_mode;
+ uint8_t alg_chain_order;
+ uint8_t *cipher_key;
+ uint8_t *auth_key;
+} QCryptoCryptoDevBackendSymSessionInfo;
+
+/**
+ * QCryptoCryptoDevBackendSymOpInfo:
+ *
+ * @session_id: session index which was previously
+ * created by qcrypto_cryptodev_backend_sym_create_session()
+ * @aad_len: byte length of additional authenticated data
+ * @iv_len: byte length of initialization vector
+ * @src_len: byte length of source data
+ * @dst_len: byte length of destination data, which is equal to
+ * src_len + hash_result_len if HASH alg configured
+ * @op_type: operation type (refer to virtio_crypto.h)
+ * @iv: pointer to the initialization vector of CIPHER
+ * @src: pointer to the source data
+ * @dst: pointer to the destination data
+ * @dst: pointer to the additional authenticated data
+ * @data[0]: pointer to the extensional memory by one memory allocation
+ *
+ */
+typedef struct QCryptoCryptoDevBackendSymOpInfo {
+ uint64_t session_id;
+ uint32_t aad_len;
+ uint32_t iv_len;
+ uint32_t src_len;
+ /* dst_len is equal to src_len + hash_result_len if hash alg configured */
+ uint32_t dst_len;
+ uint8_t op_type; /* cipher or algo chainning */
+ uint8_t *iv;
+ uint8_t *src;
+ uint8_t *dst;
+ uint8_t *aad_data; /* additional auth data */
+ uint8_t data[0];
+} QCryptoCryptoDevBackendSymOpInfo;
typedef struct QCryptoCryptoDevBackendClass {
ObjectClass parent_class;
void (*init)(QCryptoCryptoDevBackend *backend, Error **errp);
void (*cleanup)(QCryptoCryptoDevBackend *backend, Error **errp);
+
+ int64_t (*create_session)(QCryptoCryptoDevBackend *backend,
+ QCryptoCryptoDevBackendSymSessionInfo *sess_info,
+ uint32_t queue_index, Error **errp);
+ int (*close_session)(QCryptoCryptoDevBackend *backend,
+ uint64_t session_id, Error **errp);
+ int (*do_sym_op)(QCryptoCryptoDevBackend *backend,
+ QCryptoCryptoDevBackendSymOpInfo *op_info,
+ uint32_t queue_index, Error **errp);
} QCryptoCryptoDevBackendClass;
@@ -137,9 +219,57 @@ void qcrypto_cryptodev_backend_free_client(
*
* Clean the resouce associated with @backend that realizaed
* by the specific backend's init() callback
- */
+ */
void qcrypto_cryptodev_backend_cleanup(
QCryptoCryptoDevBackend *backend,
Error **errp);
+/**
+ * qcrypto_cryptodev_backend_sym_create_session:
+ * @backend: the cryptodev backend object
+ * @sess_info: parameters needed by session creating
+ * @queue_index: queue index of cryptodev backend client
+ * @errp: pointer to a NULL-initialized error object
+ *
+ * Create a session for symmetric algorithms
+ *
+ * Returns: session id on success, or -1 on error
+ */
+int64_t qcrypto_cryptodev_backend_sym_create_session(
+ QCryptoCryptoDevBackend *backend,
+ QCryptoCryptoDevBackendSymSessionInfo *sess_info,
+ uint32_t queue_index, Error **errp);
+
+/**
+ * qcrypto_cryptodev_backend_sym_close_session:
+ * @backend: the cryptodev backend object
+ * @session_id: the session id that
+ * @errp: pointer to a NULL-initialized error object
+ *
+ * Close a session for symmetric algorithms which was previously
+ * created by qcrypto_cryptodev_backend_sym_create_session()
+ *
+ * Returns: 0 on success, or Negative on error
+ */
+int qcrypto_cryptodev_backend_sym_close_session(
+ QCryptoCryptoDevBackend *backend,
+ uint64_t session_id, Error **errp);
+
+/**
+ * qcrypto_cryptodev_backend_sym_operation:
+ * @backend: the cryptodev backend object
+ * @op_info: parameters needed by symmetric crypto operation
+ * @queue_index: queue index of cryptodev backend client
+ * @errp: pointer to a NULL-initialized error object
+ *
+ * Do symmetric crypto operation, such as encryption and
+ * decryption
+ *
+ * Returns: 0 on success, or Negative on error
+ */
+int qcrypto_cryptodev_backend_sym_operation(
+ QCryptoCryptoDevBackend *backend,
+ QCryptoCryptoDevBackendSymOpInfo *op_info,
+ uint32_t queue_index, Error **errp);
+
#endif /* QCRYPTO_CRYPTODEV_H */
--
1.7.12.4
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