4 * Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
16 * * Neither the name of Intel Corporation nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #ifndef _RTE_CRYPTO_H_
34 #define _RTE_CRYPTO_H_
39 * RTE Cryptography Common Definitions
49 #include <rte_memory.h>
50 #include <rte_mempool.h>
51 #include <rte_common.h>
53 #include "rte_crypto_sym.h"
55 /** Crypto operation types */
56 enum rte_crypto_op_type {
57 RTE_CRYPTO_OP_TYPE_UNDEFINED,
58 /**< Undefined operation type */
59 RTE_CRYPTO_OP_TYPE_SYMMETRIC,
60 /**< Symmetric operation */
63 /** Status of crypto operation */
64 enum rte_crypto_op_status {
65 RTE_CRYPTO_OP_STATUS_SUCCESS,
66 /**< Operation completed successfully */
67 RTE_CRYPTO_OP_STATUS_NOT_PROCESSED,
68 /**< Operation has not yet been processed by a crypto device */
69 RTE_CRYPTO_OP_STATUS_AUTH_FAILED,
70 /**< Authentication verification failed */
71 RTE_CRYPTO_OP_STATUS_INVALID_SESSION,
73 * Symmetric operation failed due to invalid session arguments, or if
74 * in session-less mode, failed to allocate private operation material.
76 RTE_CRYPTO_OP_STATUS_INVALID_ARGS,
77 /**< Operation failed due to invalid arguments in request */
78 RTE_CRYPTO_OP_STATUS_ERROR,
79 /**< Error handling operation */
83 * Crypto operation session type. This is used to specify whether a crypto
84 * operation has session structure attached for immutable parameters or if all
85 * operation information is included in the operation data structure.
87 enum rte_crypto_op_sess_type {
88 RTE_CRYPTO_OP_WITH_SESSION, /**< Session based crypto operation */
89 RTE_CRYPTO_OP_SESSIONLESS /**< Session-less crypto operation */
93 * Cryptographic Operation.
95 * This structure contains data relating to performing cryptographic
96 * operations. This operation structure is used to contain any operation which
97 * is supported by the cryptodev API, PMDs should check the type parameter to
98 * verify that the operation is a support function of the device. Crypto
99 * operations are enqueued and dequeued in crypto PMDs using the
100 * rte_cryptodev_enqueue_burst() / rte_cryptodev_dequeue_burst() .
102 struct rte_crypto_op {
104 /**< operation type */
107 * operation status - this is reset to
108 * RTE_CRYPTO_OP_STATUS_NOT_PROCESSED on allocation from mempool and
109 * will be set to RTE_CRYPTO_OP_STATUS_SUCCESS after crypto operation
110 * is successfully processed by a crypto PMD
113 /**< operation session type */
116 /**< Reserved bytes to fill 64 bits for future additions */
117 struct rte_mempool *mempool;
118 /**< crypto operation mempool which operation is allocated from */
120 phys_addr_t phys_addr;
121 /**< physical address of crypto operation */
125 struct rte_crypto_sym_op sym[0];
126 /**< Symmetric operation parameters */
127 }; /**< operation specific parameters */
131 * Reset the fields of a crypto operation to their default values.
133 * @param op The crypto operation to be reset.
134 * @param type The crypto operation type.
137 __rte_crypto_op_reset(struct rte_crypto_op *op, enum rte_crypto_op_type type)
140 op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
141 op->sess_type = RTE_CRYPTO_OP_SESSIONLESS;
144 case RTE_CRYPTO_OP_TYPE_SYMMETRIC:
145 __rte_crypto_sym_op_reset(op->sym);
147 case RTE_CRYPTO_OP_TYPE_UNDEFINED:
154 * Private data structure belonging to a crypto symmetric operation pool.
156 struct rte_crypto_op_pool_private {
157 enum rte_crypto_op_type type;
158 /**< Crypto op pool type operation. */
160 /**< Size of private area in each crypto operation. */
165 * Returns the size of private data allocated with each rte_crypto_op object by
168 * @param mempool rte_crypto_op mempool
170 * @return private data size
172 static inline uint16_t
173 __rte_crypto_op_get_priv_data_size(struct rte_mempool *mempool)
175 struct rte_crypto_op_pool_private *priv =
176 (struct rte_crypto_op_pool_private *) rte_mempool_get_priv(mempool);
178 return priv->priv_size;
183 * Creates a crypto operation pool
185 * @param name pool name
186 * @param type crypto operation type, use
187 * RTE_CRYPTO_OP_TYPE_UNDEFINED for a pool which
188 * supports all operation types
189 * @param nb_elts number of elements in pool
190 * @param cache_size Number of elements to cache on lcore, see
191 * *rte_mempool_create* for further details about
193 * @param priv_size Size of private data to allocate with each
195 * @param socket_id Socket to allocate memory on
198 * - On success pointer to mempool
201 extern struct rte_mempool *
202 rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
203 unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
207 * Bulk allocate raw element from mempool and return as crypto operations
209 * @param mempool crypto operation mempool.
210 * @param type crypto operation type.
211 * @param ops Array to place allocated crypto operations
212 * @param nb_ops Number of crypto operations to allocate
215 * - On success returns number of ops allocated
218 __rte_crypto_op_raw_bulk_alloc(struct rte_mempool *mempool,
219 enum rte_crypto_op_type type,
220 struct rte_crypto_op **ops, uint16_t nb_ops)
222 struct rte_crypto_op_pool_private *priv;
224 priv = (struct rte_crypto_op_pool_private *) rte_mempool_get_priv(mempool);
225 if (unlikely(priv->type != type &&
226 priv->type != RTE_CRYPTO_OP_TYPE_UNDEFINED))
229 if (rte_mempool_get_bulk(mempool, (void **)ops, nb_ops) == 0)
236 * Allocate a crypto operation from a mempool with default parameters set
238 * @param mempool crypto operation mempool
239 * @param type operation type to allocate
242 * - On success returns a valid rte_crypto_op structure
243 * - On failure returns NULL
245 static inline struct rte_crypto_op *
246 rte_crypto_op_alloc(struct rte_mempool *mempool, enum rte_crypto_op_type type)
248 struct rte_crypto_op *op = NULL;
251 retval = __rte_crypto_op_raw_bulk_alloc(mempool, type, &op, 1);
252 if (unlikely(retval != 1))
255 __rte_crypto_op_reset(op, type);
262 * Bulk allocate crypto operations from a mempool with default parameters set
264 * @param mempool crypto operation mempool
265 * @param type operation type to allocate
266 * @param ops Array to place allocated crypto operations
267 * @param nb_ops Number of crypto operations to allocate
270 * - nb_ops if the number of operations requested were allocated.
271 * - 0 if the requested number of ops are not available.
272 * None are allocated in this case.
275 static inline unsigned
276 rte_crypto_op_bulk_alloc(struct rte_mempool *mempool,
277 enum rte_crypto_op_type type,
278 struct rte_crypto_op **ops, uint16_t nb_ops)
282 if (unlikely(__rte_crypto_op_raw_bulk_alloc(mempool, type, ops, nb_ops)
286 for (i = 0; i < nb_ops; i++)
287 __rte_crypto_op_reset(ops[i], type);
295 * Returns a pointer to the private data of a crypto operation if
296 * that operation has enough capacity for requested size.
298 * @param op crypto operation.
299 * @param size size of space requested in private data.
302 * - if sufficient space available returns pointer to start of private data
303 * - if insufficient space returns NULL
306 __rte_crypto_op_get_priv_data(struct rte_crypto_op *op, uint32_t size)
310 if (likely(op->mempool != NULL)) {
311 priv_size = __rte_crypto_op_get_priv_data_size(op->mempool);
313 if (likely(priv_size >= size))
314 return (void *)((uint8_t *)(op + 1) +
315 sizeof(struct rte_crypto_sym_op));
322 * free crypto operation structure
323 * If operation has been allocate from a rte_mempool, then the operation will
324 * be returned to the mempool.
326 * @param op symmetric crypto operation
329 rte_crypto_op_free(struct rte_crypto_op *op)
331 if (op != NULL && op->mempool != NULL)
332 rte_mempool_put(op->mempool, op);
336 * Allocate a symmetric crypto operation in the private data of an mbuf.
338 * @param m mbuf which is associated with the crypto operation, the
339 * operation will be allocated in the private data of that
343 * - On success returns a pointer to the crypto operation.
344 * - On failure returns NULL.
346 static inline struct rte_crypto_op *
347 rte_crypto_sym_op_alloc_from_mbuf_priv_data(struct rte_mbuf *m)
349 if (unlikely(m == NULL))
353 * check that the mbuf's private data size is sufficient to contain a
356 if (unlikely(m->priv_size < (sizeof(struct rte_crypto_op) +
357 sizeof(struct rte_crypto_sym_op))))
360 /* private data starts immediately after the mbuf header in the mbuf. */
361 struct rte_crypto_op *op = (struct rte_crypto_op *)(m + 1);
363 __rte_crypto_op_reset(op, RTE_CRYPTO_OP_TYPE_SYMMETRIC);
372 * Allocate space for symmetric crypto xforms in the private data space of the
373 * crypto operation. This also defaults the crypto xform type and configures
374 * the chaining of the xforms in the crypto operation
377 * - On success returns pointer to first crypto xform in crypto operations chain
378 * - On failure returns NULL
380 static inline struct rte_crypto_sym_xform *
381 rte_crypto_op_sym_xforms_alloc(struct rte_crypto_op *op, uint8_t nb_xforms)
386 if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC))
389 size = sizeof(struct rte_crypto_sym_xform) * nb_xforms;
391 priv_data = __rte_crypto_op_get_priv_data(op, size);
392 if (priv_data == NULL)
395 return __rte_crypto_sym_op_sym_xforms_alloc(op->sym, priv_data,
401 * Attach a session to a crypto operation
403 * @param op crypto operation, must be of type symmetric
404 * @param sess cryptodev session
407 rte_crypto_op_attach_sym_session(struct rte_crypto_op *op,
408 struct rte_cryptodev_sym_session *sess)
410 if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC))
413 op->sess_type = RTE_CRYPTO_OP_WITH_SESSION;
415 return __rte_crypto_sym_op_attach_sym_session(op->sym, sess);
422 #endif /* _RTE_CRYPTO_H_ */