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[ceph.git] / ceph / src / dpdk / drivers / crypto / openssl / rte_openssl_pmd.c
1 /*-
2 * BSD LICENSE
3 *
4 * Copyright(c) 2016 Intel Corporation. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
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
15 * distribution.
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.
19 *
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.
31 */
32
33 #include <rte_common.h>
34 #include <rte_hexdump.h>
35 #include <rte_cryptodev.h>
36 #include <rte_cryptodev_pmd.h>
37 #include <rte_vdev.h>
38 #include <rte_malloc.h>
39 #include <rte_cpuflags.h>
40
41 #include <openssl/evp.h>
42
43 #include "rte_openssl_pmd_private.h"
44
45 static int cryptodev_openssl_remove(const char *name);
46
47 /*----------------------------------------------------------------------------*/
48
49 /**
50 * Global static parameter used to create a unique name for each
51 * OPENSSL crypto device.
52 */
53 static unsigned int unique_name_id;
54
55 static inline int
56 create_unique_device_name(char *name, size_t size)
57 {
58 int ret;
59
60 if (name == NULL)
61 return -EINVAL;
62
63 ret = snprintf(name, size, "%s_%u",
64 RTE_STR(CRYPTODEV_NAME_OPENSSL_PMD),
65 unique_name_id++);
66 if (ret < 0)
67 return ret;
68 return 0;
69 }
70
71 /**
72 * Increment counter by 1
73 * Counter is 64 bit array, big-endian
74 */
75 static void
76 ctr_inc(uint8_t *ctr)
77 {
78 uint64_t *ctr64 = (uint64_t *)ctr;
79
80 *ctr64 = __builtin_bswap64(*ctr64);
81 (*ctr64)++;
82 *ctr64 = __builtin_bswap64(*ctr64);
83 }
84
85 /*
86 *------------------------------------------------------------------------------
87 * Session Prepare
88 *------------------------------------------------------------------------------
89 */
90
91 /** Get xform chain order */
92 static enum openssl_chain_order
93 openssl_get_chain_order(const struct rte_crypto_sym_xform *xform)
94 {
95 enum openssl_chain_order res = OPENSSL_CHAIN_NOT_SUPPORTED;
96
97 if (xform != NULL) {
98 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
99 if (xform->next == NULL)
100 res = OPENSSL_CHAIN_ONLY_AUTH;
101 else if (xform->next->type ==
102 RTE_CRYPTO_SYM_XFORM_CIPHER)
103 res = OPENSSL_CHAIN_AUTH_CIPHER;
104 }
105 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
106 if (xform->next == NULL)
107 res = OPENSSL_CHAIN_ONLY_CIPHER;
108 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
109 res = OPENSSL_CHAIN_CIPHER_AUTH;
110 }
111 }
112
113 return res;
114 }
115
116 /** Get session cipher key from input cipher key */
117 static void
118 get_cipher_key(uint8_t *input_key, int keylen, uint8_t *session_key)
119 {
120 memcpy(session_key, input_key, keylen);
121 }
122
123 /** Get key ede 24 bytes standard from input key */
124 static int
125 get_cipher_key_ede(uint8_t *key, int keylen, uint8_t *key_ede)
126 {
127 int res = 0;
128
129 /* Initialize keys - 24 bytes: [key1-key2-key3] */
130 switch (keylen) {
131 case 24:
132 memcpy(key_ede, key, 24);
133 break;
134 case 16:
135 /* K3 = K1 */
136 memcpy(key_ede, key, 16);
137 memcpy(key_ede + 16, key, 8);
138 break;
139 case 8:
140 /* K1 = K2 = K3 (DES compatibility) */
141 memcpy(key_ede, key, 8);
142 memcpy(key_ede + 8, key, 8);
143 memcpy(key_ede + 16, key, 8);
144 break;
145 default:
146 OPENSSL_LOG_ERR("Unsupported key size");
147 res = -EINVAL;
148 }
149
150 return res;
151 }
152
153 /** Get adequate openssl function for input cipher algorithm */
154 static uint8_t
155 get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen,
156 const EVP_CIPHER **algo)
157 {
158 int res = 0;
159
160 if (algo != NULL) {
161 switch (sess_algo) {
162 case RTE_CRYPTO_CIPHER_3DES_CBC:
163 switch (keylen) {
164 case 16:
165 *algo = EVP_des_ede_cbc();
166 break;
167 case 24:
168 *algo = EVP_des_ede3_cbc();
169 break;
170 default:
171 res = -EINVAL;
172 }
173 break;
174 case RTE_CRYPTO_CIPHER_3DES_CTR:
175 break;
176 case RTE_CRYPTO_CIPHER_AES_CBC:
177 switch (keylen) {
178 case 16:
179 *algo = EVP_aes_128_cbc();
180 break;
181 case 24:
182 *algo = EVP_aes_192_cbc();
183 break;
184 case 32:
185 *algo = EVP_aes_256_cbc();
186 break;
187 default:
188 res = -EINVAL;
189 }
190 break;
191 case RTE_CRYPTO_CIPHER_AES_CTR:
192 switch (keylen) {
193 case 16:
194 *algo = EVP_aes_128_ctr();
195 break;
196 case 24:
197 *algo = EVP_aes_192_ctr();
198 break;
199 case 32:
200 *algo = EVP_aes_256_ctr();
201 break;
202 default:
203 res = -EINVAL;
204 }
205 break;
206 case RTE_CRYPTO_CIPHER_AES_GCM:
207 switch (keylen) {
208 case 16:
209 *algo = EVP_aes_128_gcm();
210 break;
211 case 24:
212 *algo = EVP_aes_192_gcm();
213 break;
214 case 32:
215 *algo = EVP_aes_256_gcm();
216 break;
217 default:
218 res = -EINVAL;
219 }
220 break;
221 default:
222 res = -EINVAL;
223 break;
224 }
225 } else {
226 res = -EINVAL;
227 }
228
229 return res;
230 }
231
232 /** Get adequate openssl function for input auth algorithm */
233 static uint8_t
234 get_auth_algo(enum rte_crypto_auth_algorithm sessalgo,
235 const EVP_MD **algo)
236 {
237 int res = 0;
238
239 if (algo != NULL) {
240 switch (sessalgo) {
241 case RTE_CRYPTO_AUTH_MD5:
242 case RTE_CRYPTO_AUTH_MD5_HMAC:
243 *algo = EVP_md5();
244 break;
245 case RTE_CRYPTO_AUTH_SHA1:
246 case RTE_CRYPTO_AUTH_SHA1_HMAC:
247 *algo = EVP_sha1();
248 break;
249 case RTE_CRYPTO_AUTH_SHA224:
250 case RTE_CRYPTO_AUTH_SHA224_HMAC:
251 *algo = EVP_sha224();
252 break;
253 case RTE_CRYPTO_AUTH_SHA256:
254 case RTE_CRYPTO_AUTH_SHA256_HMAC:
255 *algo = EVP_sha256();
256 break;
257 case RTE_CRYPTO_AUTH_SHA384:
258 case RTE_CRYPTO_AUTH_SHA384_HMAC:
259 *algo = EVP_sha384();
260 break;
261 case RTE_CRYPTO_AUTH_SHA512:
262 case RTE_CRYPTO_AUTH_SHA512_HMAC:
263 *algo = EVP_sha512();
264 break;
265 default:
266 res = -EINVAL;
267 break;
268 }
269 } else {
270 res = -EINVAL;
271 }
272
273 return res;
274 }
275
276 /** Set session cipher parameters */
277 static int
278 openssl_set_session_cipher_parameters(struct openssl_session *sess,
279 const struct rte_crypto_sym_xform *xform)
280 {
281 /* Select cipher direction */
282 sess->cipher.direction = xform->cipher.op;
283 /* Select cipher key */
284 sess->cipher.key.length = xform->cipher.key.length;
285
286 /* Select cipher algo */
287 switch (xform->cipher.algo) {
288 case RTE_CRYPTO_CIPHER_3DES_CBC:
289 case RTE_CRYPTO_CIPHER_AES_CBC:
290 case RTE_CRYPTO_CIPHER_AES_CTR:
291 case RTE_CRYPTO_CIPHER_AES_GCM:
292 sess->cipher.mode = OPENSSL_CIPHER_LIB;
293 sess->cipher.algo = xform->cipher.algo;
294 sess->cipher.ctx = EVP_CIPHER_CTX_new();
295
296 if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length,
297 &sess->cipher.evp_algo) != 0)
298 return -EINVAL;
299
300 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
301 sess->cipher.key.data);
302
303 break;
304
305 case RTE_CRYPTO_CIPHER_3DES_CTR:
306 sess->cipher.mode = OPENSSL_CIPHER_DES3CTR;
307 sess->cipher.ctx = EVP_CIPHER_CTX_new();
308
309 if (get_cipher_key_ede(xform->cipher.key.data,
310 sess->cipher.key.length,
311 sess->cipher.key.data) != 0)
312 return -EINVAL;
313 break;
314
315 default:
316 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL;
317 return -EINVAL;
318 }
319
320 return 0;
321 }
322
323 /* Set session auth parameters */
324 static int
325 openssl_set_session_auth_parameters(struct openssl_session *sess,
326 const struct rte_crypto_sym_xform *xform)
327 {
328 /* Select auth generate/verify */
329 sess->auth.operation = xform->auth.op;
330 sess->auth.algo = xform->auth.algo;
331
332 /* Select auth algo */
333 switch (xform->auth.algo) {
334 case RTE_CRYPTO_AUTH_AES_GMAC:
335 case RTE_CRYPTO_AUTH_AES_GCM:
336 /* Check additional condition for AES_GMAC/GCM */
337 if (sess->cipher.algo != RTE_CRYPTO_CIPHER_AES_GCM)
338 return -EINVAL;
339 sess->chain_order = OPENSSL_CHAIN_COMBINED;
340 break;
341
342 case RTE_CRYPTO_AUTH_MD5:
343 case RTE_CRYPTO_AUTH_SHA1:
344 case RTE_CRYPTO_AUTH_SHA224:
345 case RTE_CRYPTO_AUTH_SHA256:
346 case RTE_CRYPTO_AUTH_SHA384:
347 case RTE_CRYPTO_AUTH_SHA512:
348 sess->auth.mode = OPENSSL_AUTH_AS_AUTH;
349 if (get_auth_algo(xform->auth.algo,
350 &sess->auth.auth.evp_algo) != 0)
351 return -EINVAL;
352 sess->auth.auth.ctx = EVP_MD_CTX_create();
353 break;
354
355 case RTE_CRYPTO_AUTH_MD5_HMAC:
356 case RTE_CRYPTO_AUTH_SHA1_HMAC:
357 case RTE_CRYPTO_AUTH_SHA224_HMAC:
358 case RTE_CRYPTO_AUTH_SHA256_HMAC:
359 case RTE_CRYPTO_AUTH_SHA384_HMAC:
360 case RTE_CRYPTO_AUTH_SHA512_HMAC:
361 sess->auth.mode = OPENSSL_AUTH_AS_HMAC;
362 sess->auth.hmac.ctx = EVP_MD_CTX_create();
363 if (get_auth_algo(xform->auth.algo,
364 &sess->auth.hmac.evp_algo) != 0)
365 return -EINVAL;
366 sess->auth.hmac.pkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL,
367 xform->auth.key.data, xform->auth.key.length);
368 break;
369
370 default:
371 return -EINVAL;
372 }
373
374 return 0;
375 }
376
377 /** Parse crypto xform chain and set private session parameters */
378 int
379 openssl_set_session_parameters(struct openssl_session *sess,
380 const struct rte_crypto_sym_xform *xform)
381 {
382 const struct rte_crypto_sym_xform *cipher_xform = NULL;
383 const struct rte_crypto_sym_xform *auth_xform = NULL;
384
385 sess->chain_order = openssl_get_chain_order(xform);
386 switch (sess->chain_order) {
387 case OPENSSL_CHAIN_ONLY_CIPHER:
388 cipher_xform = xform;
389 break;
390 case OPENSSL_CHAIN_ONLY_AUTH:
391 auth_xform = xform;
392 break;
393 case OPENSSL_CHAIN_CIPHER_AUTH:
394 cipher_xform = xform;
395 auth_xform = xform->next;
396 break;
397 case OPENSSL_CHAIN_AUTH_CIPHER:
398 auth_xform = xform;
399 cipher_xform = xform->next;
400 break;
401 default:
402 return -EINVAL;
403 }
404
405 /* cipher_xform must be check before auth_xform */
406 if (cipher_xform) {
407 if (openssl_set_session_cipher_parameters(
408 sess, cipher_xform)) {
409 OPENSSL_LOG_ERR(
410 "Invalid/unsupported cipher parameters");
411 return -EINVAL;
412 }
413 }
414
415 if (auth_xform) {
416 if (openssl_set_session_auth_parameters(sess, auth_xform)) {
417 OPENSSL_LOG_ERR(
418 "Invalid/unsupported auth parameters");
419 return -EINVAL;
420 }
421 }
422
423 return 0;
424 }
425
426 /** Reset private session parameters */
427 void
428 openssl_reset_session(struct openssl_session *sess)
429 {
430 EVP_CIPHER_CTX_free(sess->cipher.ctx);
431
432 switch (sess->auth.mode) {
433 case OPENSSL_AUTH_AS_AUTH:
434 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
435 break;
436 case OPENSSL_AUTH_AS_HMAC:
437 EVP_PKEY_free(sess->auth.hmac.pkey);
438 EVP_MD_CTX_destroy(sess->auth.hmac.ctx);
439 break;
440 default:
441 break;
442 }
443 }
444
445 /** Provide session for operation */
446 static struct openssl_session *
447 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
448 {
449 struct openssl_session *sess = NULL;
450
451 if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_WITH_SESSION) {
452 /* get existing session */
453 if (likely(op->sym->session != NULL &&
454 op->sym->session->dev_type ==
455 RTE_CRYPTODEV_OPENSSL_PMD))
456 sess = (struct openssl_session *)
457 op->sym->session->_private;
458 } else {
459 /* provide internal session */
460 void *_sess = NULL;
461
462 if (!rte_mempool_get(qp->sess_mp, (void **)&_sess)) {
463 sess = (struct openssl_session *)
464 ((struct rte_cryptodev_sym_session *)_sess)
465 ->_private;
466
467 if (unlikely(openssl_set_session_parameters(
468 sess, op->sym->xform) != 0)) {
469 rte_mempool_put(qp->sess_mp, _sess);
470 sess = NULL;
471 } else
472 op->sym->session = _sess;
473 }
474 }
475
476 if (sess == NULL)
477 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
478
479 return sess;
480 }
481
482 /*
483 *------------------------------------------------------------------------------
484 * Process Operations
485 *------------------------------------------------------------------------------
486 */
487
488 /** Process standard openssl cipher encryption */
489 static int
490 process_openssl_cipher_encrypt(uint8_t *src, uint8_t *dst,
491 uint8_t *iv, uint8_t *key, int srclen,
492 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
493 {
494 int dstlen, totlen;
495
496 if (EVP_EncryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
497 goto process_cipher_encrypt_err;
498
499 if (EVP_EncryptUpdate(ctx, dst, &dstlen, src, srclen) <= 0)
500 goto process_cipher_encrypt_err;
501
502 if (EVP_EncryptFinal_ex(ctx, dst + dstlen, &totlen) <= 0)
503 goto process_cipher_encrypt_err;
504
505 return 0;
506
507 process_cipher_encrypt_err:
508 OPENSSL_LOG_ERR("Process openssl cipher encrypt failed");
509 return -EINVAL;
510 }
511
512 /** Process standard openssl cipher decryption */
513 static int
514 process_openssl_cipher_decrypt(uint8_t *src, uint8_t *dst,
515 uint8_t *iv, uint8_t *key, int srclen,
516 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
517 {
518 int dstlen, totlen;
519
520 if (EVP_DecryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
521 goto process_cipher_decrypt_err;
522
523 if (EVP_CIPHER_CTX_set_padding(ctx, 0) <= 0)
524 goto process_cipher_decrypt_err;
525
526 if (EVP_DecryptUpdate(ctx, dst, &dstlen, src, srclen) <= 0)
527 goto process_cipher_decrypt_err;
528
529 if (EVP_DecryptFinal_ex(ctx, dst + dstlen, &totlen) <= 0)
530 goto process_cipher_decrypt_err;
531
532 return 0;
533
534 process_cipher_decrypt_err:
535 OPENSSL_LOG_ERR("Process openssl cipher decrypt failed");
536 return -EINVAL;
537 }
538
539 /** Process cipher des 3 ctr encryption, decryption algorithm */
540 static int
541 process_openssl_cipher_des3ctr(uint8_t *src, uint8_t *dst,
542 uint8_t *iv, uint8_t *key, int srclen, EVP_CIPHER_CTX *ctx)
543 {
544 uint8_t ebuf[8], ctr[8];
545 int unused, n;
546
547 /* We use 3DES encryption also for decryption.
548 * IV is not important for 3DES ecb
549 */
550 if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
551 goto process_cipher_des3ctr_err;
552
553 memcpy(ctr, iv, 8);
554 n = 0;
555
556 while (n < srclen) {
557 if (n % 8 == 0) {
558 if (EVP_EncryptUpdate(ctx,
559 (unsigned char *)&ebuf, &unused,
560 (const unsigned char *)&ctr, 8) <= 0)
561 goto process_cipher_des3ctr_err;
562 ctr_inc(ctr);
563 }
564 dst[n] = src[n] ^ ebuf[n % 8];
565 n++;
566 }
567
568 return 0;
569
570 process_cipher_des3ctr_err:
571 OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed");
572 return -EINVAL;
573 }
574
575 /** Process auth/encription aes-gcm algorithm */
576 static int
577 process_openssl_auth_encryption_gcm(uint8_t *src, int srclen,
578 uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
579 uint8_t *key, uint8_t *dst, uint8_t *tag,
580 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
581 {
582 int len = 0, unused = 0;
583 uint8_t empty[] = {};
584
585 if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
586 goto process_auth_encryption_gcm_err;
587
588 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
589 goto process_auth_encryption_gcm_err;
590
591 if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
592 goto process_auth_encryption_gcm_err;
593
594 if (aadlen > 0) {
595 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
596 goto process_auth_encryption_gcm_err;
597
598 /* Workaround open ssl bug in version less then 1.0.1f */
599 if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
600 goto process_auth_encryption_gcm_err;
601 }
602
603 if (srclen > 0)
604 if (EVP_EncryptUpdate(ctx, dst, &len, src, srclen) <= 0)
605 goto process_auth_encryption_gcm_err;
606
607 if (EVP_EncryptFinal_ex(ctx, dst + len, &len) <= 0)
608 goto process_auth_encryption_gcm_err;
609
610 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
611 goto process_auth_encryption_gcm_err;
612
613 return 0;
614
615 process_auth_encryption_gcm_err:
616 OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed");
617 return -EINVAL;
618 }
619
620 static int
621 process_openssl_auth_decryption_gcm(uint8_t *src, int srclen,
622 uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
623 uint8_t *key, uint8_t *dst, uint8_t *tag,
624 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
625 {
626 int len = 0, unused = 0;
627 uint8_t empty[] = {};
628
629 if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
630 goto process_auth_decryption_gcm_err;
631
632 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
633 goto process_auth_decryption_gcm_err;
634
635 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
636 goto process_auth_decryption_gcm_err;
637
638 if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
639 goto process_auth_decryption_gcm_err;
640
641 if (aadlen > 0) {
642 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
643 goto process_auth_decryption_gcm_err;
644
645 /* Workaround open ssl bug in version less then 1.0.1f */
646 if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
647 goto process_auth_decryption_gcm_err;
648 }
649
650 if (srclen > 0)
651 if (EVP_DecryptUpdate(ctx, dst, &len, src, srclen) <= 0)
652 goto process_auth_decryption_gcm_err;
653
654 if (EVP_DecryptFinal_ex(ctx, dst + len, &len) <= 0)
655 goto process_auth_decryption_gcm_final_err;
656
657 return 0;
658
659 process_auth_decryption_gcm_err:
660 OPENSSL_LOG_ERR("Process openssl auth description gcm failed");
661 return -EINVAL;
662
663 process_auth_decryption_gcm_final_err:
664 return -EFAULT;
665 }
666
667 /** Process standard openssl auth algorithms */
668 static int
669 process_openssl_auth(uint8_t *src, uint8_t *dst,
670 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
671 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
672 {
673 size_t dstlen;
674
675 if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
676 goto process_auth_err;
677
678 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
679 goto process_auth_err;
680
681 if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
682 goto process_auth_err;
683
684 return 0;
685
686 process_auth_err:
687 OPENSSL_LOG_ERR("Process openssl auth failed");
688 return -EINVAL;
689 }
690
691 /** Process standard openssl auth algorithms with hmac */
692 static int
693 process_openssl_auth_hmac(uint8_t *src, uint8_t *dst,
694 __rte_unused uint8_t *iv, EVP_PKEY *pkey,
695 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
696 {
697 size_t dstlen;
698
699 if (EVP_DigestSignInit(ctx, NULL, algo, NULL, pkey) <= 0)
700 goto process_auth_err;
701
702 if (EVP_DigestSignUpdate(ctx, (char *)src, srclen) <= 0)
703 goto process_auth_err;
704
705 if (EVP_DigestSignFinal(ctx, dst, &dstlen) <= 0)
706 goto process_auth_err;
707
708 return 0;
709
710 process_auth_err:
711 OPENSSL_LOG_ERR("Process openssl auth failed");
712 return -EINVAL;
713 }
714
715 /*----------------------------------------------------------------------------*/
716
717 /** Process auth/cipher combined operation */
718 static void
719 process_openssl_combined_op
720 (struct rte_crypto_op *op, struct openssl_session *sess,
721 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
722 {
723 /* cipher */
724 uint8_t *src = NULL, *dst = NULL, *iv, *tag, *aad;
725 int srclen, ivlen, aadlen, status = -1;
726
727 iv = op->sym->cipher.iv.data;
728 ivlen = op->sym->cipher.iv.length;
729 aad = op->sym->auth.aad.data;
730 aadlen = op->sym->auth.aad.length;
731
732 tag = op->sym->auth.digest.data;
733 if (tag == NULL)
734 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
735 op->sym->cipher.data.offset +
736 op->sym->cipher.data.length);
737
738 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
739 srclen = 0;
740 else {
741 srclen = op->sym->cipher.data.length;
742 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
743 op->sym->cipher.data.offset);
744 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
745 op->sym->cipher.data.offset);
746 }
747
748 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
749 status = process_openssl_auth_encryption_gcm(
750 src, srclen, aad, aadlen, iv, ivlen,
751 sess->cipher.key.data, dst, tag,
752 sess->cipher.ctx, sess->cipher.evp_algo);
753 else
754 status = process_openssl_auth_decryption_gcm(
755 src, srclen, aad, aadlen, iv, ivlen,
756 sess->cipher.key.data, dst, tag,
757 sess->cipher.ctx, sess->cipher.evp_algo);
758
759 if (status != 0) {
760 if (status == (-EFAULT) &&
761 sess->auth.operation ==
762 RTE_CRYPTO_AUTH_OP_VERIFY)
763 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
764 else
765 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
766 }
767 }
768
769 /** Process cipher operation */
770 static void
771 process_openssl_cipher_op
772 (struct rte_crypto_op *op, struct openssl_session *sess,
773 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
774 {
775 uint8_t *src, *dst, *iv;
776 int srclen, status;
777
778 srclen = op->sym->cipher.data.length;
779 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
780 op->sym->cipher.data.offset);
781 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
782 op->sym->cipher.data.offset);
783
784 iv = op->sym->cipher.iv.data;
785
786 if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
787 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
788 status = process_openssl_cipher_encrypt(src, dst, iv,
789 sess->cipher.key.data, srclen,
790 sess->cipher.ctx,
791 sess->cipher.evp_algo);
792 else
793 status = process_openssl_cipher_decrypt(src, dst, iv,
794 sess->cipher.key.data, srclen,
795 sess->cipher.ctx,
796 sess->cipher.evp_algo);
797 else
798 status = process_openssl_cipher_des3ctr(src, dst, iv,
799 sess->cipher.key.data, srclen,
800 sess->cipher.ctx);
801
802 if (status != 0)
803 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
804 }
805
806 /** Process auth operation */
807 static void
808 process_openssl_auth_op
809 (struct rte_crypto_op *op, struct openssl_session *sess,
810 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
811 {
812 uint8_t *src, *dst;
813 int srclen, status;
814
815 srclen = op->sym->auth.data.length;
816 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
817 op->sym->auth.data.offset);
818
819 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
820 dst = (uint8_t *)rte_pktmbuf_append(mbuf_src,
821 op->sym->auth.digest.length);
822 else {
823 dst = op->sym->auth.digest.data;
824 if (dst == NULL)
825 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
826 op->sym->auth.data.offset +
827 op->sym->auth.data.length);
828 }
829
830 switch (sess->auth.mode) {
831 case OPENSSL_AUTH_AS_AUTH:
832 status = process_openssl_auth(src, dst,
833 NULL, NULL, srclen,
834 sess->auth.auth.ctx, sess->auth.auth.evp_algo);
835 break;
836 case OPENSSL_AUTH_AS_HMAC:
837 status = process_openssl_auth_hmac(src, dst,
838 NULL, sess->auth.hmac.pkey, srclen,
839 sess->auth.hmac.ctx, sess->auth.hmac.evp_algo);
840 break;
841 default:
842 status = -1;
843 break;
844 }
845
846 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
847 if (memcmp(dst, op->sym->auth.digest.data,
848 op->sym->auth.digest.length) != 0) {
849 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
850 }
851 /* Trim area used for digest from mbuf. */
852 rte_pktmbuf_trim(mbuf_src,
853 op->sym->auth.digest.length);
854 }
855
856 if (status != 0)
857 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
858 }
859
860 /** Process crypto operation for mbuf */
861 static int
862 process_op(const struct openssl_qp *qp, struct rte_crypto_op *op,
863 struct openssl_session *sess)
864 {
865 struct rte_mbuf *msrc, *mdst;
866 int retval;
867
868 msrc = op->sym->m_src;
869 mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
870
871 op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
872
873 switch (sess->chain_order) {
874 case OPENSSL_CHAIN_ONLY_CIPHER:
875 process_openssl_cipher_op(op, sess, msrc, mdst);
876 break;
877 case OPENSSL_CHAIN_ONLY_AUTH:
878 process_openssl_auth_op(op, sess, msrc, mdst);
879 break;
880 case OPENSSL_CHAIN_CIPHER_AUTH:
881 process_openssl_cipher_op(op, sess, msrc, mdst);
882 process_openssl_auth_op(op, sess, mdst, mdst);
883 break;
884 case OPENSSL_CHAIN_AUTH_CIPHER:
885 process_openssl_auth_op(op, sess, msrc, mdst);
886 process_openssl_cipher_op(op, sess, msrc, mdst);
887 break;
888 case OPENSSL_CHAIN_COMBINED:
889 process_openssl_combined_op(op, sess, msrc, mdst);
890 break;
891 default:
892 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
893 break;
894 }
895
896 /* Free session if a session-less crypto op */
897 if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) {
898 openssl_reset_session(sess);
899 memset(sess, 0, sizeof(struct openssl_session));
900 rte_mempool_put(qp->sess_mp, op->sym->session);
901 op->sym->session = NULL;
902 }
903
904
905 if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
906 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
907
908 if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
909 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
910 else
911 retval = -1;
912
913 return retval;
914 }
915
916 /*
917 *------------------------------------------------------------------------------
918 * PMD Framework
919 *------------------------------------------------------------------------------
920 */
921
922 /** Enqueue burst */
923 static uint16_t
924 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
925 uint16_t nb_ops)
926 {
927 struct openssl_session *sess;
928 struct openssl_qp *qp = queue_pair;
929 int i, retval;
930
931 for (i = 0; i < nb_ops; i++) {
932 sess = get_session(qp, ops[i]);
933 if (unlikely(sess == NULL))
934 goto enqueue_err;
935
936 retval = process_op(qp, ops[i], sess);
937 if (unlikely(retval < 0))
938 goto enqueue_err;
939 }
940
941 qp->stats.enqueued_count += i;
942 return i;
943
944 enqueue_err:
945 qp->stats.enqueue_err_count++;
946 return i;
947 }
948
949 /** Dequeue burst */
950 static uint16_t
951 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
952 uint16_t nb_ops)
953 {
954 struct openssl_qp *qp = queue_pair;
955
956 unsigned int nb_dequeued = 0;
957
958 nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
959 (void **)ops, nb_ops);
960 qp->stats.dequeued_count += nb_dequeued;
961
962 return nb_dequeued;
963 }
964
965 /** Create OPENSSL crypto device */
966 static int
967 cryptodev_openssl_create(const char *name,
968 struct rte_crypto_vdev_init_params *init_params)
969 {
970 struct rte_cryptodev *dev;
971 char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
972 struct openssl_private *internals;
973
974 /* create a unique device name */
975 if (create_unique_device_name(crypto_dev_name,
976 RTE_CRYPTODEV_NAME_MAX_LEN) != 0) {
977 OPENSSL_LOG_ERR("failed to create unique cryptodev name");
978 return -EINVAL;
979 }
980
981 dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name,
982 sizeof(struct openssl_private),
983 init_params->socket_id);
984 if (dev == NULL) {
985 OPENSSL_LOG_ERR("failed to create cryptodev vdev");
986 goto init_error;
987 }
988
989 dev->dev_type = RTE_CRYPTODEV_OPENSSL_PMD;
990 dev->dev_ops = rte_openssl_pmd_ops;
991
992 /* register rx/tx burst functions for data path */
993 dev->dequeue_burst = openssl_pmd_dequeue_burst;
994 dev->enqueue_burst = openssl_pmd_enqueue_burst;
995
996 dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
997 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
998 RTE_CRYPTODEV_FF_CPU_AESNI;
999
1000 /* Set vector instructions mode supported */
1001 internals = dev->data->dev_private;
1002
1003 internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
1004 internals->max_nb_sessions = init_params->max_nb_sessions;
1005
1006 return 0;
1007
1008 init_error:
1009 OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed", name);
1010
1011 cryptodev_openssl_remove(crypto_dev_name);
1012 return -EFAULT;
1013 }
1014
1015 /** Initialise OPENSSL crypto device */
1016 static int
1017 cryptodev_openssl_probe(const char *name,
1018 const char *input_args)
1019 {
1020 struct rte_crypto_vdev_init_params init_params = {
1021 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
1022 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
1023 rte_socket_id()
1024 };
1025
1026 rte_cryptodev_parse_vdev_init_params(&init_params, input_args);
1027
1028 RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
1029 init_params.socket_id);
1030 RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n",
1031 init_params.max_nb_queue_pairs);
1032 RTE_LOG(INFO, PMD, " Max number of sessions = %d\n",
1033 init_params.max_nb_sessions);
1034
1035 return cryptodev_openssl_create(name, &init_params);
1036 }
1037
1038 /** Uninitialise OPENSSL crypto device */
1039 static int
1040 cryptodev_openssl_remove(const char *name)
1041 {
1042 if (name == NULL)
1043 return -EINVAL;
1044
1045 RTE_LOG(INFO, PMD,
1046 "Closing OPENSSL crypto device %s on numa socket %u\n",
1047 name, rte_socket_id());
1048
1049 return 0;
1050 }
1051
1052 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
1053 .probe = cryptodev_openssl_probe,
1054 .remove = cryptodev_openssl_remove
1055 };
1056
1057 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
1058 cryptodev_openssl_pmd_drv);
1059 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
1060 "max_nb_queue_pairs=<int> "
1061 "max_nb_sessions=<int> "
1062 "socket_id=<int>");
Ceph