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8#include <sys/types.h>
9#include <netinet/in.h>
10#include <netinet/ip.h>
11#include <netinet/ip6.h>
12
13#include <rte_memzone.h>
14#include <rte_crypto.h>
15#include <rte_security.h>
16#include <rte_cryptodev.h>
17#include <rte_byteorder.h>
18#include <rte_errno.h>
19#include <rte_ip.h>
20#include <rte_udp.h>
21#include <rte_random.h>
22#include <rte_ethdev.h>
23#include <rte_malloc.h>
24
25#include "ipsec.h"
26#include "esp.h"
27#include "parser.h"
28#include "sad.h"
29
30#define IPDEFTTL 64
31
32#define IP4_FULL_MASK (sizeof(((struct ip_addr *)NULL)->ip.ip4) * CHAR_BIT)
33
34#define IP6_FULL_MASK (sizeof(((struct ip_addr *)NULL)->ip.ip6.ip6) * CHAR_BIT)
35
36#define MBUF_NO_SEC_OFFLOAD(m) ((m->ol_flags & RTE_MBUF_F_RX_SEC_OFFLOAD) == 0)
37
38struct supported_cipher_algo {
39 const char *keyword;
40 enum rte_crypto_cipher_algorithm algo;
41 uint16_t iv_len;
42 uint16_t block_size;
43 uint16_t key_len;
44};
45
46struct supported_auth_algo {
47 const char *keyword;
48 enum rte_crypto_auth_algorithm algo;
49 uint16_t iv_len;
50 uint16_t digest_len;
51 uint16_t key_len;
52 uint8_t key_not_req;
53};
54
55struct supported_aead_algo {
56 const char *keyword;
57 enum rte_crypto_aead_algorithm algo;
58 uint16_t iv_len;
59 uint16_t block_size;
60 uint16_t digest_len;
61 uint16_t key_len;
62 uint8_t aad_len;
63};
64
65
66const struct supported_cipher_algo cipher_algos[] = {
67 {
68 .keyword = "null",
69 .algo = RTE_CRYPTO_CIPHER_NULL,
70 .iv_len = 0,
71 .block_size = 4,
72 .key_len = 0
73 },
74 {
75 .keyword = "aes-128-cbc",
76 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
77 .iv_len = 16,
78 .block_size = 16,
79 .key_len = 16
80 },
81 {
82 .keyword = "aes-192-cbc",
83 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
84 .iv_len = 16,
85 .block_size = 16,
86 .key_len = 24
87 },
88 {
89 .keyword = "aes-256-cbc",
90 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
91 .iv_len = 16,
92 .block_size = 16,
93 .key_len = 32
94 },
95 {
96 .keyword = "aes-128-ctr",
97 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
98 .iv_len = 8,
99 .block_size = 4,
100 .key_len = 20
101 },
102 {
103 .keyword = "aes-192-ctr",
104 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
105 .iv_len = 16,
106 .block_size = 16,
107 .key_len = 28
108 },
109 {
110 .keyword = "aes-256-ctr",
111 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
112 .iv_len = 16,
113 .block_size = 16,
114 .key_len = 36
115 },
116 {
117 .keyword = "3des-cbc",
118 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
119 .iv_len = 8,
120 .block_size = 8,
121 .key_len = 24
122 }
123};
124
125const struct supported_auth_algo auth_algos[] = {
126 {
127 .keyword = "null",
128 .algo = RTE_CRYPTO_AUTH_NULL,
129 .digest_len = 0,
130 .key_len = 0,
131 .key_not_req = 1
132 },
133 {
134 .keyword = "sha1-hmac",
135 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
136 .digest_len = 12,
137 .key_len = 20
138 },
139 {
140 .keyword = "sha256-hmac",
141 .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
142 .digest_len = 16,
143 .key_len = 32
144 },
145 {
146 .keyword = "sha384-hmac",
147 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
148 .digest_len = 24,
149 .key_len = 48
150 },
151 {
152 .keyword = "sha512-hmac",
153 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
154 .digest_len = 32,
155 .key_len = 64
156 },
157 {
158 .keyword = "aes-gmac",
159 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
160 .iv_len = 8,
161 .digest_len = 16,
162 .key_len = 20
163 },
164 {
165 .keyword = "aes-xcbc-mac-96",
166 .algo = RTE_CRYPTO_AUTH_AES_XCBC_MAC,
167 .digest_len = 12,
168 .key_len = 16
169 }
170};
171
172const struct supported_aead_algo aead_algos[] = {
173 {
174 .keyword = "aes-128-gcm",
175 .algo = RTE_CRYPTO_AEAD_AES_GCM,
176 .iv_len = 8,
177 .block_size = 4,
178 .key_len = 20,
179 .digest_len = 16,
180 .aad_len = 8,
181 },
182 {
183 .keyword = "aes-192-gcm",
184 .algo = RTE_CRYPTO_AEAD_AES_GCM,
185 .iv_len = 8,
186 .block_size = 4,
187 .key_len = 28,
188 .digest_len = 16,
189 .aad_len = 8,
190 },
191 {
192 .keyword = "aes-256-gcm",
193 .algo = RTE_CRYPTO_AEAD_AES_GCM,
194 .iv_len = 8,
195 .block_size = 4,
196 .key_len = 36,
197 .digest_len = 16,
198 .aad_len = 8,
199 },
200 {
201 .keyword = "aes-128-ccm",
202 .algo = RTE_CRYPTO_AEAD_AES_CCM,
203 .iv_len = 8,
204 .block_size = 4,
205 .key_len = 20,
206 .digest_len = 16,
207 .aad_len = 8,
208 },
209 {
210 .keyword = "aes-192-ccm",
211 .algo = RTE_CRYPTO_AEAD_AES_CCM,
212 .iv_len = 8,
213 .block_size = 4,
214 .key_len = 28,
215 .digest_len = 16,
216 .aad_len = 8,
217 },
218 {
219 .keyword = "aes-256-ccm",
220 .algo = RTE_CRYPTO_AEAD_AES_CCM,
221 .iv_len = 8,
222 .block_size = 4,
223 .key_len = 36,
224 .digest_len = 16,
225 .aad_len = 8,
226 },
227 {
228 .keyword = "chacha20-poly1305",
229 .algo = RTE_CRYPTO_AEAD_CHACHA20_POLY1305,
230 .iv_len = 12,
231 .block_size = 64,
232 .key_len = 36,
233 .digest_len = 16,
234 .aad_len = 8,
235 }
236};
237
238#define SA_INIT_NB 128
239
240static uint32_t nb_crypto_sessions;
241struct ipsec_sa *sa_out;
242uint32_t nb_sa_out;
243static uint32_t sa_out_sz;
244static struct ipsec_sa_cnt sa_out_cnt;
245
246struct ipsec_sa *sa_in;
247uint32_t nb_sa_in;
248static uint32_t sa_in_sz;
249static struct ipsec_sa_cnt sa_in_cnt;
250
251static const struct supported_cipher_algo *
252find_match_cipher_algo(const char *cipher_keyword)
253{
254 size_t i;
255
256 for (i = 0; i < RTE_DIM(cipher_algos); i++) {
257 const struct supported_cipher_algo *algo =
258 &cipher_algos[i];
259
260 if (strcmp(cipher_keyword, algo->keyword) == 0)
261 return algo;
262 }
263
264 return NULL;
265}
266
267static const struct supported_auth_algo *
268find_match_auth_algo(const char *auth_keyword)
269{
270 size_t i;
271
272 for (i = 0; i < RTE_DIM(auth_algos); i++) {
273 const struct supported_auth_algo *algo =
274 &auth_algos[i];
275
276 if (strcmp(auth_keyword, algo->keyword) == 0)
277 return algo;
278 }
279
280 return NULL;
281}
282
283static const struct supported_aead_algo *
284find_match_aead_algo(const char *aead_keyword)
285{
286 size_t i;
287
288 for (i = 0; i < RTE_DIM(aead_algos); i++) {
289 const struct supported_aead_algo *algo =
290 &aead_algos[i];
291
292 if (strcmp(aead_keyword, algo->keyword) == 0)
293 return algo;
294 }
295
296 return NULL;
297}
298
299
300
301
302
303
304
305static uint32_t
306parse_key_string(const char *key_str, uint8_t *key)
307{
308 const char *pt_start = key_str, *pt_end = key_str;
309 uint32_t nb_bytes = 0;
310
311 while (pt_end != NULL) {
312 char sub_str[3] = {0};
313
314 pt_end = strchr(pt_start, ':');
315
316 if (pt_end == NULL) {
317 if (strlen(pt_start) > 2)
318 return 0;
319 strncpy(sub_str, pt_start, 2);
320 } else {
321 if (pt_end - pt_start > 2)
322 return 0;
323
324 strncpy(sub_str, pt_start, pt_end - pt_start);
325 pt_start = pt_end + 1;
326 }
327
328 key[nb_bytes++] = strtol(sub_str, NULL, 16);
329 }
330
331 return nb_bytes;
332}
333
334static int
335extend_sa_arr(struct ipsec_sa **sa_tbl, uint32_t cur_cnt, uint32_t *cur_sz)
336{
337 if (*sa_tbl == NULL) {
338 *sa_tbl = calloc(SA_INIT_NB, sizeof(struct ipsec_sa));
339 if (*sa_tbl == NULL)
340 return -1;
341 *cur_sz = SA_INIT_NB;
342 return 0;
343 }
344
345 if (cur_cnt >= *cur_sz) {
346 *sa_tbl = realloc(*sa_tbl,
347 *cur_sz * sizeof(struct ipsec_sa) * 2);
348 if (*sa_tbl == NULL)
349 return -1;
350
351 memset(&(*sa_tbl)[*cur_sz], 0,
352 *cur_sz * sizeof(struct ipsec_sa));
353 *cur_sz *= 2;
354 }
355
356 return 0;
357}
358
359void
360parse_sa_tokens(char **tokens, uint32_t n_tokens,
361 struct parse_status *status)
362{
363 struct ipsec_sa *rule = NULL;
364 struct rte_ipsec_session *ips;
365 uint32_t ti;
366 uint32_t *ri ;
367 struct ipsec_sa_cnt *sa_cnt;
368 uint32_t cipher_algo_p = 0;
369 uint32_t auth_algo_p = 0;
370 uint32_t aead_algo_p = 0;
371 uint32_t src_p = 0;
372 uint32_t dst_p = 0;
373 uint32_t mode_p = 0;
374 uint32_t type_p = 0;
375 uint32_t portid_p = 0;
376 uint32_t fallback_p = 0;
377 int16_t status_p = 0;
378 uint16_t udp_encap_p = 0;
379
380 if (strcmp(tokens[0], "in") == 0) {
381 ri = &nb_sa_in;
382 sa_cnt = &sa_in_cnt;
383 if (extend_sa_arr(&sa_in, nb_sa_in, &sa_in_sz) < 0)
384 return;
385 rule = &sa_in[*ri];
386 rule->direction = RTE_SECURITY_IPSEC_SA_DIR_INGRESS;
387 } else {
388 ri = &nb_sa_out;
389 sa_cnt = &sa_out_cnt;
390 if (extend_sa_arr(&sa_out, nb_sa_out, &sa_out_sz) < 0)
391 return;
392 rule = &sa_out[*ri];
393 rule->direction = RTE_SECURITY_IPSEC_SA_DIR_EGRESS;
394 }
395
396
397 APP_CHECK_TOKEN_IS_NUM(tokens, 1, status);
398 if (status->status < 0)
399 return;
400 if (atoi(tokens[1]) == INVALID_SPI)
401 return;
402 rule->flags = 0;
403 rule->spi = atoi(tokens[1]);
404 rule->portid = UINT16_MAX;
405 ips = ipsec_get_primary_session(rule);
406
407 for (ti = 2; ti < n_tokens; ti++) {
408 if (strcmp(tokens[ti], "mode") == 0) {
409 APP_CHECK_PRESENCE(mode_p, tokens[ti], status);
410 if (status->status < 0)
411 return;
412
413 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
414 if (status->status < 0)
415 return;
416
417 if (strcmp(tokens[ti], "ipv4-tunnel") == 0) {
418 sa_cnt->nb_v4++;
419 rule->flags |= IP4_TUNNEL;
420 } else if (strcmp(tokens[ti], "ipv6-tunnel") == 0) {
421 sa_cnt->nb_v6++;
422 rule->flags |= IP6_TUNNEL;
423 } else if (strcmp(tokens[ti], "transport") == 0) {
424 sa_cnt->nb_v4++;
425 sa_cnt->nb_v6++;
426 rule->flags |= TRANSPORT;
427 } else {
428 APP_CHECK(0, status, "unrecognized "
429 "input \"%s\"", tokens[ti]);
430 return;
431 }
432
433 mode_p = 1;
434 continue;
435 }
436
437 if (strcmp(tokens[ti], "telemetry") == 0) {
438 rule->flags |= SA_TELEMETRY_ENABLE;
439 continue;
440 }
441
442 if (strcmp(tokens[ti], "cipher_algo") == 0) {
443 const struct supported_cipher_algo *algo;
444 uint32_t key_len;
445
446 APP_CHECK_PRESENCE(cipher_algo_p, tokens[ti],
447 status);
448 if (status->status < 0)
449 return;
450
451 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
452 if (status->status < 0)
453 return;
454
455 algo = find_match_cipher_algo(tokens[ti]);
456
457 APP_CHECK(algo != NULL, status, "unrecognized "
458 "input \"%s\"", tokens[ti]);
459
460 if (status->status < 0)
461 return;
462
463 rule->cipher_algo = algo->algo;
464 rule->block_size = algo->block_size;
465 rule->iv_len = algo->iv_len;
466 rule->cipher_key_len = algo->key_len;
467
468
469 if (rule->cipher_algo == RTE_CRYPTO_CIPHER_NULL) {
470 cipher_algo_p = 1;
471 continue;
472 }
473
474 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
475 if (status->status < 0)
476 return;
477
478 APP_CHECK(strcmp(tokens[ti], "cipher_key") == 0,
479 status, "unrecognized input \"%s\", "
480 "expect \"cipher_key\"", tokens[ti]);
481 if (status->status < 0)
482 return;
483
484 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
485 if (status->status < 0)
486 return;
487
488 key_len = parse_key_string(tokens[ti],
489 rule->cipher_key);
490 APP_CHECK(key_len == rule->cipher_key_len, status,
491 "unrecognized input \"%s\"", tokens[ti]);
492 if (status->status < 0)
493 return;
494
495 if (algo->algo == RTE_CRYPTO_CIPHER_AES_CBC ||
496 algo->algo == RTE_CRYPTO_CIPHER_3DES_CBC)
497 rule->salt = (uint32_t)rte_rand();
498
499 if (algo->algo == RTE_CRYPTO_CIPHER_AES_CTR) {
500 key_len -= 4;
501 rule->cipher_key_len = key_len;
502 memcpy(&rule->salt,
503 &rule->cipher_key[key_len], 4);
504 }
505
506 cipher_algo_p = 1;
507 continue;
508 }
509
510 if (strcmp(tokens[ti], "auth_algo") == 0) {
511 const struct supported_auth_algo *algo;
512 uint32_t key_len;
513
514 APP_CHECK_PRESENCE(auth_algo_p, tokens[ti],
515 status);
516 if (status->status < 0)
517 return;
518
519 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
520 if (status->status < 0)
521 return;
522
523 algo = find_match_auth_algo(tokens[ti]);
524 APP_CHECK(algo != NULL, status, "unrecognized "
525 "input \"%s\"", tokens[ti]);
526
527 if (status->status < 0)
528 return;
529
530 rule->auth_algo = algo->algo;
531 rule->auth_key_len = algo->key_len;
532 rule->digest_len = algo->digest_len;
533
534
535
536
537 if (algo->key_not_req) {
538 auth_algo_p = 1;
539 continue;
540 }
541
542 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
543 if (status->status < 0)
544 return;
545
546 APP_CHECK(strcmp(tokens[ti], "auth_key") == 0,
547 status, "unrecognized input \"%s\", "
548 "expect \"auth_key\"", tokens[ti]);
549 if (status->status < 0)
550 return;
551
552 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
553 if (status->status < 0)
554 return;
555
556 key_len = parse_key_string(tokens[ti],
557 rule->auth_key);
558 APP_CHECK(key_len == rule->auth_key_len, status,
559 "unrecognized input \"%s\"", tokens[ti]);
560 if (status->status < 0)
561 return;
562
563 if (algo->algo == RTE_CRYPTO_AUTH_AES_GMAC) {
564 key_len -= 4;
565 rule->auth_key_len = key_len;
566 rule->iv_len = algo->iv_len;
567 memcpy(&rule->salt,
568 &rule->auth_key[key_len], 4);
569 }
570
571 auth_algo_p = 1;
572 continue;
573 }
574
575 if (strcmp(tokens[ti], "aead_algo") == 0) {
576 const struct supported_aead_algo *algo;
577 uint32_t key_len;
578
579 APP_CHECK_PRESENCE(aead_algo_p, tokens[ti],
580 status);
581 if (status->status < 0)
582 return;
583
584 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
585 if (status->status < 0)
586 return;
587
588 algo = find_match_aead_algo(tokens[ti]);
589
590 APP_CHECK(algo != NULL, status, "unrecognized "
591 "input \"%s\"", tokens[ti]);
592
593 if (status->status < 0)
594 return;
595
596 rule->aead_algo = algo->algo;
597 rule->cipher_key_len = algo->key_len;
598 rule->digest_len = algo->digest_len;
599 rule->aad_len = algo->aad_len;
600 rule->block_size = algo->block_size;
601 rule->iv_len = algo->iv_len;
602
603 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
604 if (status->status < 0)
605 return;
606
607 APP_CHECK(strcmp(tokens[ti], "aead_key") == 0,
608 status, "unrecognized input \"%s\", "
609 "expect \"aead_key\"", tokens[ti]);
610 if (status->status < 0)
611 return;
612
613 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
614 if (status->status < 0)
615 return;
616
617 key_len = parse_key_string(tokens[ti],
618 rule->cipher_key);
619 APP_CHECK(key_len == rule->cipher_key_len, status,
620 "unrecognized input \"%s\"", tokens[ti]);
621 if (status->status < 0)
622 return;
623
624 key_len -= 4;
625 rule->cipher_key_len = key_len;
626 memcpy(&rule->salt,
627 &rule->cipher_key[key_len], 4);
628
629 aead_algo_p = 1;
630 continue;
631 }
632
633 if (strcmp(tokens[ti], "src") == 0) {
634 APP_CHECK_PRESENCE(src_p, tokens[ti], status);
635 if (status->status < 0)
636 return;
637
638 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
639 if (status->status < 0)
640 return;
641
642 if (IS_IP4_TUNNEL(rule->flags)) {
643 struct in_addr ip;
644
645 APP_CHECK(parse_ipv4_addr(tokens[ti],
646 &ip, NULL) == 0, status,
647 "unrecognized input \"%s\", "
648 "expect valid ipv4 addr",
649 tokens[ti]);
650 if (status->status < 0)
651 return;
652 rule->src.ip.ip4 = rte_bswap32(
653 (uint32_t)ip.s_addr);
654 } else if (IS_IP6_TUNNEL(rule->flags)) {
655 struct in6_addr ip;
656
657 APP_CHECK(parse_ipv6_addr(tokens[ti], &ip,
658 NULL) == 0, status,
659 "unrecognized input \"%s\", "
660 "expect valid ipv6 addr",
661 tokens[ti]);
662 if (status->status < 0)
663 return;
664 memcpy(rule->src.ip.ip6.ip6_b,
665 ip.s6_addr, 16);
666 } else if (IS_TRANSPORT(rule->flags)) {
667 APP_CHECK(0, status, "unrecognized input "
668 "\"%s\"", tokens[ti]);
669 return;
670 }
671
672 src_p = 1;
673 continue;
674 }
675
676 if (strcmp(tokens[ti], "dst") == 0) {
677 APP_CHECK_PRESENCE(dst_p, tokens[ti], status);
678 if (status->status < 0)
679 return;
680
681 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
682 if (status->status < 0)
683 return;
684
685 if (IS_IP4_TUNNEL(rule->flags)) {
686 struct in_addr ip;
687
688 APP_CHECK(parse_ipv4_addr(tokens[ti],
689 &ip, NULL) == 0, status,
690 "unrecognized input \"%s\", "
691 "expect valid ipv4 addr",
692 tokens[ti]);
693 if (status->status < 0)
694 return;
695 rule->dst.ip.ip4 = rte_bswap32(
696 (uint32_t)ip.s_addr);
697 } else if (IS_IP6_TUNNEL(rule->flags)) {
698 struct in6_addr ip;
699
700 APP_CHECK(parse_ipv6_addr(tokens[ti], &ip,
701 NULL) == 0, status,
702 "unrecognized input \"%s\", "
703 "expect valid ipv6 addr",
704 tokens[ti]);
705 if (status->status < 0)
706 return;
707 memcpy(rule->dst.ip.ip6.ip6_b, ip.s6_addr, 16);
708 } else if (IS_TRANSPORT(rule->flags)) {
709 APP_CHECK(0, status, "unrecognized "
710 "input \"%s\"", tokens[ti]);
711 return;
712 }
713
714 dst_p = 1;
715 continue;
716 }
717
718 if (strcmp(tokens[ti], "type") == 0) {
719 APP_CHECK_PRESENCE(type_p, tokens[ti], status);
720 if (status->status < 0)
721 return;
722
723 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
724 if (status->status < 0)
725 return;
726
727 if (strcmp(tokens[ti], "inline-crypto-offload") == 0)
728 ips->type =
729 RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO;
730 else if (strcmp(tokens[ti],
731 "inline-protocol-offload") == 0)
732 ips->type =
733 RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL;
734 else if (strcmp(tokens[ti],
735 "lookaside-protocol-offload") == 0)
736 ips->type =
737 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL;
738 else if (strcmp(tokens[ti], "no-offload") == 0)
739 ips->type = RTE_SECURITY_ACTION_TYPE_NONE;
740 else if (strcmp(tokens[ti], "cpu-crypto") == 0)
741 ips->type = RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO;
742 else {
743 APP_CHECK(0, status, "Invalid input \"%s\"",
744 tokens[ti]);
745 return;
746 }
747
748 type_p = 1;
749 continue;
750 }
751
752 if (strcmp(tokens[ti], "port_id") == 0) {
753 APP_CHECK_PRESENCE(portid_p, tokens[ti], status);
754 if (status->status < 0)
755 return;
756 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
757 if (status->status < 0)
758 return;
759 if (rule->portid == UINT16_MAX)
760 rule->portid = atoi(tokens[ti]);
761 else if (rule->portid != atoi(tokens[ti])) {
762 APP_CHECK(0, status,
763 "portid %s not matching with already assigned portid %u",
764 tokens[ti], rule->portid);
765 return;
766 }
767 portid_p = 1;
768 continue;
769 }
770
771 if (strcmp(tokens[ti], "mss") == 0) {
772 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
773 if (status->status < 0)
774 return;
775 rule->mss = atoi(tokens[ti]);
776 if (status->status < 0)
777 return;
778 continue;
779 }
780
781 if (strcmp(tokens[ti], "esn") == 0) {
782 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
783 if (status->status < 0)
784 return;
785 rule->esn = atoll(tokens[ti]);
786 if (status->status < 0)
787 return;
788 continue;
789 }
790
791 if (strcmp(tokens[ti], "fallback") == 0) {
792 struct rte_ipsec_session *fb;
793
794 APP_CHECK(app_sa_prm.enable, status, "Fallback session "
795 "not allowed for legacy mode.");
796 if (status->status < 0)
797 return;
798 APP_CHECK(ips->type ==
799 RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO, status,
800 "Fallback session allowed if primary session "
801 "is of type inline-crypto-offload only.");
802 if (status->status < 0)
803 return;
804 APP_CHECK(rule->direction ==
805 RTE_SECURITY_IPSEC_SA_DIR_INGRESS, status,
806 "Fallback session not allowed for egress "
807 "rule");
808 if (status->status < 0)
809 return;
810 APP_CHECK_PRESENCE(fallback_p, tokens[ti], status);
811 if (status->status < 0)
812 return;
813 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
814 if (status->status < 0)
815 return;
816 fb = ipsec_get_fallback_session(rule);
817 if (strcmp(tokens[ti], "lookaside-none") == 0)
818 fb->type = RTE_SECURITY_ACTION_TYPE_NONE;
819 else if (strcmp(tokens[ti], "cpu-crypto") == 0)
820 fb->type = RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO;
821 else {
822 APP_CHECK(0, status, "unrecognized fallback "
823 "type %s.", tokens[ti]);
824 return;
825 }
826
827 rule->fallback_sessions = 1;
828 nb_crypto_sessions++;
829 fallback_p = 1;
830 continue;
831 }
832 if (strcmp(tokens[ti], "flow-direction") == 0) {
833 switch (ips->type) {
834 case RTE_SECURITY_ACTION_TYPE_NONE:
835 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO:
836 rule->fdir_flag = 1;
837 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
838 if (status->status < 0)
839 return;
840 if (rule->portid == UINT16_MAX)
841 rule->portid = atoi(tokens[ti]);
842 else if (rule->portid != atoi(tokens[ti])) {
843 APP_CHECK(0, status,
844 "portid %s not matching with already assigned portid %u",
845 tokens[ti], rule->portid);
846 return;
847 }
848 INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
849 if (status->status < 0)
850 return;
851 rule->fdir_qid = atoi(tokens[ti]);
852
853 status_p = check_flow_params(rule->portid,
854 rule->fdir_qid);
855 if (status_p < 0) {
856 printf("port id %u / queue id %u is "
857 "not valid\n", rule->portid,
858 rule->fdir_qid);
859 }
860 break;
861 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
862 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
863 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
864 default:
865 APP_CHECK(0, status,
866 "flow director not supported for security session type %d",
867 ips->type);
868 return;
869 }
870 continue;
871 }
872 if (strcmp(tokens[ti], "udp-encap") == 0) {
873 switch (ips->type) {
874 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
875 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
876 APP_CHECK_PRESENCE(udp_encap_p, tokens[ti],
877 status);
878 if (status->status < 0)
879 return;
880
881 rule->udp_encap = 1;
882 app_sa_prm.udp_encap = 1;
883 udp_encap_p = 1;
884 break;
885 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
886 rule->udp_encap = 1;
887 rule->udp.sport = 0;
888 rule->udp.dport = 4500;
889 break;
890 default:
891 APP_CHECK(0, status,
892 "UDP encapsulation not supported for "
893 "security session type %d",
894 ips->type);
895 return;
896 }
897 continue;
898 }
899
900
901 APP_CHECK(0, status, "unrecognized input \"%s\"",
902 tokens[ti]);
903 return;
904 }
905
906 if (aead_algo_p) {
907 APP_CHECK(cipher_algo_p == 0, status,
908 "AEAD used, no need for cipher options");
909 if (status->status < 0)
910 return;
911
912 APP_CHECK(auth_algo_p == 0, status,
913 "AEAD used, no need for auth options");
914 if (status->status < 0)
915 return;
916 } else {
917 APP_CHECK(cipher_algo_p == 1, status, "missing cipher or AEAD options");
918 if (status->status < 0)
919 return;
920
921 APP_CHECK(auth_algo_p == 1, status, "missing auth or AEAD options");
922 if (status->status < 0)
923 return;
924 }
925
926 APP_CHECK(mode_p == 1, status, "missing mode option");
927 if (status->status < 0)
928 return;
929
930 if ((ips->type != RTE_SECURITY_ACTION_TYPE_NONE && ips->type !=
931 RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) && (portid_p == 0))
932 printf("Missing portid option, falling back to non-offload\n");
933
934 if (!type_p || (!portid_p && ips->type !=
935 RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO)) {
936 ips->type = RTE_SECURITY_ACTION_TYPE_NONE;
937 }
938
939 nb_crypto_sessions++;
940 *ri = *ri + 1;
941}
942
943static void
944print_one_sa_rule(const struct ipsec_sa *sa, int inbound)
945{
946 uint32_t i;
947 uint8_t a, b, c, d;
948 const struct rte_ipsec_session *ips;
949 const struct rte_ipsec_session *fallback_ips;
950
951 printf("\tspi_%s(%3u):", inbound?"in":"out", sa->spi);
952
953 for (i = 0; i < RTE_DIM(cipher_algos); i++) {
954 if (cipher_algos[i].algo == sa->cipher_algo &&
955 cipher_algos[i].key_len == sa->cipher_key_len) {
956 printf("%s ", cipher_algos[i].keyword);
957 break;
958 }
959 }
960
961 for (i = 0; i < RTE_DIM(auth_algos); i++) {
962 if (auth_algos[i].algo == sa->auth_algo) {
963 printf("%s ", auth_algos[i].keyword);
964 break;
965 }
966 }
967
968 for (i = 0; i < RTE_DIM(aead_algos); i++) {
969 if (aead_algos[i].algo == sa->aead_algo &&
970 aead_algos[i].key_len-4 == sa->cipher_key_len) {
971 printf("%s ", aead_algos[i].keyword);
972 break;
973 }
974 }
975
976 printf("mode:");
977 if (sa->udp_encap)
978 printf("UDP encapsulated ");
979
980 switch (WITHOUT_TRANSPORT_VERSION(sa->flags)) {
981 case IP4_TUNNEL:
982 printf("IP4Tunnel ");
983 uint32_t_to_char(sa->src.ip.ip4, &a, &b, &c, &d);
984 printf("%hhu.%hhu.%hhu.%hhu ", d, c, b, a);
985 uint32_t_to_char(sa->dst.ip.ip4, &a, &b, &c, &d);
986 printf("%hhu.%hhu.%hhu.%hhu", d, c, b, a);
987 break;
988 case IP6_TUNNEL:
989 printf("IP6Tunnel ");
990 for (i = 0; i < 16; i++) {
991 if (i % 2 && i != 15)
992 printf("%.2x:", sa->src.ip.ip6.ip6_b[i]);
993 else
994 printf("%.2x", sa->src.ip.ip6.ip6_b[i]);
995 }
996 printf(" ");
997 for (i = 0; i < 16; i++) {
998 if (i % 2 && i != 15)
999 printf("%.2x:", sa->dst.ip.ip6.ip6_b[i]);
1000 else
1001 printf("%.2x", sa->dst.ip.ip6.ip6_b[i]);
1002 }
1003 break;
1004 case TRANSPORT:
1005 printf("Transport ");
1006 break;
1007 }
1008
1009 ips = &sa->sessions[IPSEC_SESSION_PRIMARY];
1010 printf(" type:");
1011 switch (ips->type) {
1012 case RTE_SECURITY_ACTION_TYPE_NONE:
1013 printf("no-offload ");
1014 break;
1015 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
1016 printf("inline-crypto-offload ");
1017 break;
1018 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
1019 printf("inline-protocol-offload ");
1020 break;
1021 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
1022 printf("lookaside-protocol-offload ");
1023 break;
1024 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO:
1025 printf("cpu-crypto-accelerated ");
1026 break;
1027 }
1028
1029 fallback_ips = &sa->sessions[IPSEC_SESSION_FALLBACK];
1030 if (fallback_ips != NULL && sa->fallback_sessions > 0) {
1031 printf("inline fallback: ");
1032 switch (fallback_ips->type) {
1033 case RTE_SECURITY_ACTION_TYPE_NONE:
1034 printf("lookaside-none");
1035 break;
1036 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO:
1037 printf("cpu-crypto-accelerated");
1038 break;
1039 default:
1040 printf("invalid");
1041 break;
1042 }
1043 }
1044 if (sa->fdir_flag == 1)
1045 printf("flow-direction port %d queue %d", sa->portid,
1046 sa->fdir_qid);
1047
1048 printf("\n");
1049}
1050
1051static struct sa_ctx *
1052sa_create(const char *name, int32_t socket_id, uint32_t nb_sa)
1053{
1054 char s[PATH_MAX];
1055 struct sa_ctx *sa_ctx;
1056 uint32_t mz_size;
1057 const struct rte_memzone *mz;
1058
1059 snprintf(s, sizeof(s), "%s_%u", name, socket_id);
1060
1061
1062 printf("Creating SA context with %u maximum entries on socket %d\n",
1063 nb_sa, socket_id);
1064
1065 mz_size = sizeof(struct ipsec_xf) * nb_sa;
1066 mz = rte_memzone_reserve(s, mz_size, socket_id,
1067 RTE_MEMZONE_1GB | RTE_MEMZONE_SIZE_HINT_ONLY);
1068 if (mz == NULL) {
1069 printf("Failed to allocate SA XFORM memory\n");
1070 rte_errno = ENOMEM;
1071 return NULL;
1072 }
1073
1074 sa_ctx = rte_zmalloc(NULL, sizeof(struct sa_ctx) +
1075 sizeof(struct ipsec_sa) * nb_sa, RTE_CACHE_LINE_SIZE);
1076
1077 if (sa_ctx == NULL) {
1078 printf("Failed to allocate SA CTX memory\n");
1079 rte_errno = ENOMEM;
1080 rte_memzone_free(mz);
1081 return NULL;
1082 }
1083
1084 sa_ctx->xf = (struct ipsec_xf *)mz->addr;
1085 sa_ctx->nb_sa = nb_sa;
1086
1087 return sa_ctx;
1088}
1089
1090static int
1091check_eth_dev_caps(uint16_t portid, uint32_t inbound, uint32_t tso)
1092{
1093 struct rte_eth_dev_info dev_info;
1094 int retval;
1095
1096 retval = rte_eth_dev_info_get(portid, &dev_info);
1097 if (retval != 0) {
1098 RTE_LOG(ERR, IPSEC,
1099 "Error during getting device (port %u) info: %s\n",
1100 portid, strerror(-retval));
1101
1102 return retval;
1103 }
1104
1105 if (inbound) {
1106 if ((dev_info.rx_offload_capa &
1107 RTE_ETH_RX_OFFLOAD_SECURITY) == 0) {
1108 RTE_LOG(WARNING, PORT,
1109 "hardware RX IPSec offload is not supported\n");
1110 return -EINVAL;
1111 }
1112
1113 } else {
1114 if ((dev_info.tx_offload_capa &
1115 RTE_ETH_TX_OFFLOAD_SECURITY) == 0) {
1116 RTE_LOG(WARNING, PORT,
1117 "hardware TX IPSec offload is not supported\n");
1118 return -EINVAL;
1119 }
1120 if (tso && (dev_info.tx_offload_capa &
1121 RTE_ETH_TX_OFFLOAD_TCP_TSO) == 0) {
1122 RTE_LOG(WARNING, PORT,
1123 "hardware TCP TSO offload is not supported\n");
1124 return -EINVAL;
1125 }
1126 }
1127 return 0;
1128}
1129
1130
1131
1132
1133
1134static int
1135get_spi_proto(uint32_t spi, enum rte_security_ipsec_sa_direction dir,
1136 struct ip_addr ip_addr[2], uint32_t mask[2])
1137{
1138 int32_t rc4, rc6;
1139
1140 rc4 = sp4_spi_present(spi, dir == RTE_SECURITY_IPSEC_SA_DIR_INGRESS,
1141 ip_addr, mask);
1142 rc6 = sp6_spi_present(spi, dir == RTE_SECURITY_IPSEC_SA_DIR_INGRESS,
1143 ip_addr, mask);
1144
1145 if (rc4 >= 0) {
1146 if (rc6 >= 0) {
1147 RTE_LOG(ERR, IPSEC,
1148 "%s: SPI %u used simultaneously by "
1149 "IPv4(%d) and IPv6 (%d) SP rules\n",
1150 __func__, spi, rc4, rc6);
1151 return -EINVAL;
1152 } else
1153 return IPPROTO_IPIP;
1154 } else if (rc6 < 0) {
1155 RTE_LOG(ERR, IPSEC,
1156 "%s: SPI %u is not used by any SP rule\n",
1157 __func__, spi);
1158 return -EINVAL;
1159 } else
1160 return IPPROTO_IPV6;
1161}
1162
1163
1164
1165
1166
1167
1168
1169
1170static int
1171sa_add_address_inline_crypto(struct ipsec_sa *sa)
1172{
1173 int protocol;
1174 struct ip_addr ip_addr[2];
1175 uint32_t mask[2];
1176
1177 protocol = get_spi_proto(sa->spi, sa->direction, ip_addr, mask);
1178 if (protocol < 0)
1179 return protocol;
1180 else if (protocol == IPPROTO_IPIP) {
1181 sa->flags |= IP4_TRANSPORT;
1182 if (mask[0] == IP4_FULL_MASK &&
1183 mask[1] == IP4_FULL_MASK &&
1184 ip_addr[0].ip.ip4 != 0 &&
1185 ip_addr[1].ip.ip4 != 0) {
1186
1187 sa->src.ip.ip4 = ip_addr[0].ip.ip4;
1188 sa->dst.ip.ip4 = ip_addr[1].ip.ip4;
1189 } else {
1190 RTE_LOG(ERR, IPSEC,
1191 "%s: No valid address or mask entry in"
1192 " IPv4 SP rule for SPI %u\n",
1193 __func__, sa->spi);
1194 return -EINVAL;
1195 }
1196 } else if (protocol == IPPROTO_IPV6) {
1197 sa->flags |= IP6_TRANSPORT;
1198 if (mask[0] == IP6_FULL_MASK &&
1199 mask[1] == IP6_FULL_MASK &&
1200 (ip_addr[0].ip.ip6.ip6[0] != 0 ||
1201 ip_addr[0].ip.ip6.ip6[1] != 0) &&
1202 (ip_addr[1].ip.ip6.ip6[0] != 0 ||
1203 ip_addr[1].ip.ip6.ip6[1] != 0)) {
1204
1205 sa->src.ip.ip6 = ip_addr[0].ip.ip6;
1206 sa->dst.ip.ip6 = ip_addr[1].ip.ip6;
1207 } else {
1208 RTE_LOG(ERR, IPSEC,
1209 "%s: No valid address or mask entry in"
1210 " IPv6 SP rule for SPI %u\n",
1211 __func__, sa->spi);
1212 return -EINVAL;
1213 }
1214 }
1215 return 0;
1216}
1217
1218static int
1219sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
1220 uint32_t nb_entries, uint32_t inbound,
1221 struct socket_ctx *skt_ctx)
1222{
1223 struct ipsec_sa *sa;
1224 uint32_t i, idx;
1225 uint16_t iv_length, aad_length;
1226 int inline_status;
1227 int32_t rc;
1228 struct rte_ipsec_session *ips;
1229
1230
1231 aad_length = (app_sa_prm.enable_esn != 0) ? sizeof(uint32_t) : 0;
1232
1233 for (i = 0; i < nb_entries; i++) {
1234 idx = i;
1235 sa = &sa_ctx->sa[idx];
1236 if (sa->spi != 0) {
1237 printf("Index %u already in use by SPI %u\n",
1238 idx, sa->spi);
1239 return -EINVAL;
1240 }
1241 *sa = entries[i];
1242
1243 if (inbound) {
1244 rc = ipsec_sad_add(&sa_ctx->sad, sa);
1245 if (rc != 0)
1246 return rc;
1247 }
1248
1249 sa->seq = 0;
1250 ips = ipsec_get_primary_session(sa);
1251
1252 if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL ||
1253 ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
1254 if (check_eth_dev_caps(sa->portid, inbound, sa->mss))
1255 return -EINVAL;
1256 }
1257
1258 switch (WITHOUT_TRANSPORT_VERSION(sa->flags)) {
1259 case IP4_TUNNEL:
1260 sa->src.ip.ip4 = rte_cpu_to_be_32(sa->src.ip.ip4);
1261 sa->dst.ip.ip4 = rte_cpu_to_be_32(sa->dst.ip.ip4);
1262 break;
1263 case TRANSPORT:
1264 if (ips->type ==
1265 RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
1266 inline_status =
1267 sa_add_address_inline_crypto(sa);
1268 if (inline_status < 0)
1269 return inline_status;
1270 }
1271 break;
1272 }
1273
1274
1275 if (sa->aead_algo == RTE_CRYPTO_AEAD_AES_GCM ||
1276 sa->aead_algo == RTE_CRYPTO_AEAD_AES_CCM ||
1277 sa->aead_algo == RTE_CRYPTO_AEAD_CHACHA20_POLY1305) {
1278
1279 if (sa->aead_algo == RTE_CRYPTO_AEAD_AES_CCM)
1280 iv_length = 11;
1281 else
1282 iv_length = 12;
1283
1284 sa_ctx->xf[idx].a.type = RTE_CRYPTO_SYM_XFORM_AEAD;
1285 sa_ctx->xf[idx].a.aead.algo = sa->aead_algo;
1286 sa_ctx->xf[idx].a.aead.key.data = sa->cipher_key;
1287 sa_ctx->xf[idx].a.aead.key.length =
1288 sa->cipher_key_len;
1289 sa_ctx->xf[idx].a.aead.op = (inbound == 1) ?
1290 RTE_CRYPTO_AEAD_OP_DECRYPT :
1291 RTE_CRYPTO_AEAD_OP_ENCRYPT;
1292 sa_ctx->xf[idx].a.next = NULL;
1293 sa_ctx->xf[idx].a.aead.iv.offset = IV_OFFSET;
1294 sa_ctx->xf[idx].a.aead.iv.length = iv_length;
1295 sa_ctx->xf[idx].a.aead.aad_length =
1296 sa->aad_len + aad_length;
1297 sa_ctx->xf[idx].a.aead.digest_length =
1298 sa->digest_len;
1299
1300 sa->xforms = &sa_ctx->xf[idx].a;
1301 } else {
1302 switch (sa->cipher_algo) {
1303 case RTE_CRYPTO_CIPHER_NULL:
1304 case RTE_CRYPTO_CIPHER_3DES_CBC:
1305 case RTE_CRYPTO_CIPHER_AES_CBC:
1306 case RTE_CRYPTO_CIPHER_AES_CTR:
1307 iv_length = sa->iv_len;
1308 break;
1309 default:
1310 RTE_LOG(ERR, IPSEC_ESP,
1311 "unsupported cipher algorithm %u\n",
1312 sa->cipher_algo);
1313 return -EINVAL;
1314 }
1315
1316
1317 if (sa->auth_algo == RTE_CRYPTO_AUTH_AES_GMAC)
1318 iv_length = 12;
1319
1320 if (inbound) {
1321 sa_ctx->xf[idx].b.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
1322 sa_ctx->xf[idx].b.cipher.algo = sa->cipher_algo;
1323 sa_ctx->xf[idx].b.cipher.key.data = sa->cipher_key;
1324 sa_ctx->xf[idx].b.cipher.key.length =
1325 sa->cipher_key_len;
1326 sa_ctx->xf[idx].b.cipher.op =
1327 RTE_CRYPTO_CIPHER_OP_DECRYPT;
1328 sa_ctx->xf[idx].b.next = NULL;
1329 sa_ctx->xf[idx].b.cipher.iv.offset = IV_OFFSET;
1330 sa_ctx->xf[idx].b.cipher.iv.length = iv_length;
1331
1332 sa_ctx->xf[idx].a.type = RTE_CRYPTO_SYM_XFORM_AUTH;
1333 sa_ctx->xf[idx].a.auth.algo = sa->auth_algo;
1334 sa_ctx->xf[idx].a.auth.key.data = sa->auth_key;
1335 sa_ctx->xf[idx].a.auth.key.length =
1336 sa->auth_key_len;
1337 sa_ctx->xf[idx].a.auth.digest_length =
1338 sa->digest_len;
1339 sa_ctx->xf[idx].a.auth.op =
1340 RTE_CRYPTO_AUTH_OP_VERIFY;
1341 sa_ctx->xf[idx].a.auth.iv.offset = IV_OFFSET;
1342 sa_ctx->xf[idx].a.auth.iv.length = iv_length;
1343
1344 } else {
1345 sa_ctx->xf[idx].a.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
1346 sa_ctx->xf[idx].a.cipher.algo = sa->cipher_algo;
1347 sa_ctx->xf[idx].a.cipher.key.data = sa->cipher_key;
1348 sa_ctx->xf[idx].a.cipher.key.length =
1349 sa->cipher_key_len;
1350 sa_ctx->xf[idx].a.cipher.op =
1351 RTE_CRYPTO_CIPHER_OP_ENCRYPT;
1352 sa_ctx->xf[idx].a.next = NULL;
1353 sa_ctx->xf[idx].a.cipher.iv.offset = IV_OFFSET;
1354 sa_ctx->xf[idx].a.cipher.iv.length = iv_length;
1355
1356 sa_ctx->xf[idx].b.type = RTE_CRYPTO_SYM_XFORM_AUTH;
1357 sa_ctx->xf[idx].b.auth.algo = sa->auth_algo;
1358 sa_ctx->xf[idx].b.auth.key.data = sa->auth_key;
1359 sa_ctx->xf[idx].b.auth.key.length =
1360 sa->auth_key_len;
1361 sa_ctx->xf[idx].b.auth.digest_length =
1362 sa->digest_len;
1363 sa_ctx->xf[idx].b.auth.op =
1364 RTE_CRYPTO_AUTH_OP_GENERATE;
1365 sa_ctx->xf[idx].b.auth.iv.offset = IV_OFFSET;
1366 sa_ctx->xf[idx].b.auth.iv.length = iv_length;
1367
1368 }
1369
1370 if (sa->auth_algo == RTE_CRYPTO_AUTH_AES_GMAC) {
1371 sa->xforms = inbound ?
1372 &sa_ctx->xf[idx].a : &sa_ctx->xf[idx].b;
1373 sa->xforms->next = NULL;
1374
1375 } else {
1376 sa_ctx->xf[idx].a.next = &sa_ctx->xf[idx].b;
1377 sa_ctx->xf[idx].b.next = NULL;
1378 sa->xforms = &sa_ctx->xf[idx].a;
1379 }
1380 }
1381
1382 if (ips->type ==
1383 RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL ||
1384 ips->type ==
1385 RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
1386 rc = create_inline_session(skt_ctx, sa, ips);
1387 if (rc != 0) {
1388 RTE_LOG(ERR, IPSEC_ESP,
1389 "create_inline_session() failed\n");
1390 return -EINVAL;
1391 }
1392 }
1393
1394 if (sa->fdir_flag && inbound) {
1395 rc = create_ipsec_esp_flow(sa);
1396 if (rc != 0)
1397 RTE_LOG(ERR, IPSEC_ESP,
1398 "create_ipsec_esp_flow() failed\n");
1399 }
1400 print_one_sa_rule(sa, inbound);
1401 }
1402
1403 return 0;
1404}
1405
1406static inline int
1407sa_out_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
1408 uint32_t nb_entries, struct socket_ctx *skt_ctx)
1409{
1410 return sa_add_rules(sa_ctx, entries, nb_entries, 0, skt_ctx);
1411}
1412
1413static inline int
1414sa_in_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
1415 uint32_t nb_entries, struct socket_ctx *skt_ctx)
1416{
1417 return sa_add_rules(sa_ctx, entries, nb_entries, 1, skt_ctx);
1418}
1419
1420
1421
1422
1423static void
1424fill_ipsec_app_sa_prm(struct rte_ipsec_sa_prm *prm,
1425 const struct app_sa_prm *app_prm)
1426{
1427 memset(prm, 0, sizeof(*prm));
1428
1429 prm->flags = app_prm->flags;
1430 prm->ipsec_xform.options.esn = app_prm->enable_esn;
1431 prm->ipsec_xform.replay_win_sz = app_prm->window_size;
1432}
1433
1434static int
1435fill_ipsec_sa_prm(struct rte_ipsec_sa_prm *prm, const struct ipsec_sa *ss,
1436 const struct rte_ipv4_hdr *v4, struct rte_ipv6_hdr *v6)
1437{
1438 int32_t rc;
1439
1440
1441
1442
1443
1444
1445 rc = get_spi_proto(ss->spi, ss->direction, NULL, NULL);
1446 if (rc < 0)
1447 return rc;
1448
1449 fill_ipsec_app_sa_prm(prm, &app_sa_prm);
1450 prm->userdata = (uintptr_t)ss;
1451
1452
1453 prm->ipsec_xform.spi = ss->spi;
1454 prm->ipsec_xform.salt = ss->salt;
1455 prm->ipsec_xform.direction = ss->direction;
1456 prm->ipsec_xform.proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP;
1457 prm->ipsec_xform.mode = (IS_TRANSPORT(ss->flags)) ?
1458 RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT :
1459 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL;
1460 prm->ipsec_xform.options.udp_encap = ss->udp_encap;
1461 prm->ipsec_xform.options.ecn = 1;
1462 prm->ipsec_xform.options.copy_dscp = 1;
1463
1464 if (IS_IP4_TUNNEL(ss->flags)) {
1465 prm->ipsec_xform.tunnel.type = RTE_SECURITY_IPSEC_TUNNEL_IPV4;
1466 prm->tun.hdr_len = sizeof(*v4);
1467 prm->tun.next_proto = rc;
1468 prm->tun.hdr = v4;
1469 } else if (IS_IP6_TUNNEL(ss->flags)) {
1470 prm->ipsec_xform.tunnel.type = RTE_SECURITY_IPSEC_TUNNEL_IPV6;
1471 prm->tun.hdr_len = sizeof(*v6);
1472 prm->tun.next_proto = rc;
1473 prm->tun.hdr = v6;
1474 } else {
1475
1476 prm->trs.proto = rc;
1477 }
1478
1479
1480 prm->crypto_xform = ss->xforms;
1481 return 0;
1482}
1483
1484static int
1485fill_ipsec_session(struct rte_ipsec_session *ss, struct rte_ipsec_sa *sa)
1486{
1487 int32_t rc = 0;
1488
1489 ss->sa = sa;
1490
1491 if (ss->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
1492 ss->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
1493 if (ss->security.ses != NULL) {
1494 rc = rte_ipsec_session_prepare(ss);
1495 if (rc != 0)
1496 memset(ss, 0, sizeof(*ss));
1497 }
1498 }
1499
1500 return rc;
1501}
1502
1503
1504
1505
1506static int
1507ipsec_sa_init(struct ipsec_sa *lsa, struct rte_ipsec_sa *sa, uint32_t sa_size)
1508{
1509 int rc;
1510 struct rte_ipsec_sa_prm prm;
1511 struct rte_ipsec_session *ips;
1512 struct rte_ipv4_hdr v4 = {
1513 .version_ihl = IPVERSION << 4 |
1514 sizeof(v4) / RTE_IPV4_IHL_MULTIPLIER,
1515 .time_to_live = IPDEFTTL,
1516 .next_proto_id = IPPROTO_ESP,
1517 .src_addr = lsa->src.ip.ip4,
1518 .dst_addr = lsa->dst.ip.ip4,
1519 };
1520 struct rte_ipv6_hdr v6 = {
1521 .vtc_flow = htonl(IP6_VERSION << 28),
1522 .proto = IPPROTO_ESP,
1523 };
1524
1525 if (IS_IP6_TUNNEL(lsa->flags)) {
1526 memcpy(v6.src_addr, lsa->src.ip.ip6.ip6_b, sizeof(v6.src_addr));
1527 memcpy(v6.dst_addr, lsa->dst.ip.ip6.ip6_b, sizeof(v6.dst_addr));
1528 }
1529
1530 rc = fill_ipsec_sa_prm(&prm, lsa, &v4, &v6);
1531 if (rc == 0)
1532 rc = rte_ipsec_sa_init(sa, &prm, sa_size);
1533 if (rc < 0)
1534 return rc;
1535
1536 if (lsa->flags & SA_TELEMETRY_ENABLE)
1537 rte_ipsec_telemetry_sa_add(sa);
1538
1539
1540 ips = ipsec_get_primary_session(lsa);
1541 rc = fill_ipsec_session(ips, sa);
1542 if (rc != 0)
1543 return rc;
1544
1545
1546 if (lsa->fallback_sessions == 1)
1547 rc = fill_ipsec_session(ipsec_get_fallback_session(lsa), sa);
1548
1549 return rc;
1550}
1551
1552
1553
1554
1555
1556static int
1557ipsec_satbl_init(struct sa_ctx *ctx, uint32_t nb_ent, int32_t socket)
1558{
1559 int32_t rc, sz;
1560 uint32_t i, idx;
1561 size_t tsz;
1562 struct rte_ipsec_sa *sa;
1563 struct ipsec_sa *lsa;
1564 struct rte_ipsec_sa_prm prm;
1565
1566
1567 idx = 0;
1568 fill_ipsec_sa_prm(&prm, ctx->sa + idx, NULL, NULL);
1569 sz = rte_ipsec_sa_size(&prm);
1570 if (sz < 0) {
1571 RTE_LOG(ERR, IPSEC, "%s(%p, %u, %d): "
1572 "failed to determine SA size, error code: %d\n",
1573 __func__, ctx, nb_ent, socket, sz);
1574 return sz;
1575 }
1576
1577 tsz = sz * nb_ent;
1578
1579 ctx->satbl = rte_zmalloc_socket(NULL, tsz, RTE_CACHE_LINE_SIZE, socket);
1580 if (ctx->satbl == NULL) {
1581 RTE_LOG(ERR, IPSEC,
1582 "%s(%p, %u, %d): failed to allocate %zu bytes\n",
1583 __func__, ctx, nb_ent, socket, tsz);
1584 return -ENOMEM;
1585 }
1586
1587 rc = 0;
1588 for (i = 0; i != nb_ent && rc == 0; i++) {
1589
1590 idx = i;
1591
1592 sa = (struct rte_ipsec_sa *)((uintptr_t)ctx->satbl + sz * i);
1593 lsa = ctx->sa + idx;
1594
1595 rc = ipsec_sa_init(lsa, sa, sz);
1596 }
1597
1598 return rc;
1599}
1600
1601static int
1602sa_cmp(const void *p, const void *q)
1603{
1604 uint32_t spi1 = ((const struct ipsec_sa *)p)->spi;
1605 uint32_t spi2 = ((const struct ipsec_sa *)q)->spi;
1606
1607 return (int)(spi1 - spi2);
1608}
1609
1610
1611
1612
1613int
1614sa_spi_present(struct sa_ctx *sa_ctx, uint32_t spi, int inbound)
1615{
1616 uint32_t num;
1617 struct ipsec_sa *sa;
1618 struct ipsec_sa tmpl;
1619 const struct ipsec_sa *sar;
1620
1621 sar = sa_ctx->sa;
1622 if (inbound != 0)
1623 num = nb_sa_in;
1624 else
1625 num = nb_sa_out;
1626
1627 tmpl.spi = spi;
1628
1629 sa = bsearch(&tmpl, sar, num, sizeof(struct ipsec_sa), sa_cmp);
1630 if (sa != NULL)
1631 return RTE_PTR_DIFF(sa, sar) / sizeof(struct ipsec_sa);
1632
1633 return -ENOENT;
1634}
1635
1636void
1637sa_init(struct socket_ctx *ctx, int32_t socket_id)
1638{
1639 int32_t rc;
1640 const char *name;
1641
1642 if (ctx == NULL)
1643 rte_exit(EXIT_FAILURE, "NULL context.\n");
1644
1645 if (ctx->sa_in != NULL)
1646 rte_exit(EXIT_FAILURE, "Inbound SA DB for socket %u already "
1647 "initialized\n", socket_id);
1648
1649 if (ctx->sa_out != NULL)
1650 rte_exit(EXIT_FAILURE, "Outbound SA DB for socket %u already "
1651 "initialized\n", socket_id);
1652
1653 if (nb_sa_in > 0) {
1654 name = "sa_in";
1655 ctx->sa_in = sa_create(name, socket_id, nb_sa_in);
1656 if (ctx->sa_in == NULL)
1657 rte_exit(EXIT_FAILURE, "Error [%d] creating SA "
1658 "context %s in socket %d\n", rte_errno,
1659 name, socket_id);
1660
1661 rc = ipsec_sad_create(name, &ctx->sa_in->sad, socket_id,
1662 &sa_in_cnt);
1663 if (rc != 0)
1664 rte_exit(EXIT_FAILURE, "failed to init SAD\n");
1665
1666 sa_in_add_rules(ctx->sa_in, sa_in, nb_sa_in, ctx);
1667
1668 if (app_sa_prm.enable != 0) {
1669 rc = ipsec_satbl_init(ctx->sa_in, nb_sa_in,
1670 socket_id);
1671 if (rc != 0)
1672 rte_exit(EXIT_FAILURE,
1673 "failed to init inbound SAs\n");
1674 }
1675 } else
1676 RTE_LOG(WARNING, IPSEC, "No SA Inbound rule specified\n");
1677
1678 if (nb_sa_out > 0) {
1679 name = "sa_out";
1680 ctx->sa_out = sa_create(name, socket_id, nb_sa_out);
1681 if (ctx->sa_out == NULL)
1682 rte_exit(EXIT_FAILURE, "Error [%d] creating SA "
1683 "context %s in socket %d\n", rte_errno,
1684 name, socket_id);
1685
1686 sa_out_add_rules(ctx->sa_out, sa_out, nb_sa_out, ctx);
1687
1688 if (app_sa_prm.enable != 0) {
1689 rc = ipsec_satbl_init(ctx->sa_out, nb_sa_out,
1690 socket_id);
1691 if (rc != 0)
1692 rte_exit(EXIT_FAILURE,
1693 "failed to init outbound SAs\n");
1694 }
1695 } else
1696 RTE_LOG(WARNING, IPSEC, "No SA Outbound rule "
1697 "specified\n");
1698}
1699
1700int
1701inbound_sa_check(struct sa_ctx *sa_ctx, struct rte_mbuf *m, uint32_t sa_idx)
1702{
1703 struct ipsec_mbuf_metadata *priv;
1704 struct ipsec_sa *sa;
1705
1706 priv = get_priv(m);
1707 sa = priv->sa;
1708 if (sa != NULL)
1709 return (sa_ctx->sa[sa_idx].spi == sa->spi);
1710
1711 RTE_LOG(ERR, IPSEC, "SA not saved in private data\n");
1712 return 0;
1713}
1714
1715void
1716inbound_sa_lookup(struct sa_ctx *sa_ctx, struct rte_mbuf *pkts[],
1717 void *sa_arr[], uint16_t nb_pkts)
1718{
1719 uint32_t i;
1720 void *result_sa;
1721 struct ipsec_sa *sa;
1722
1723 sad_lookup(&sa_ctx->sad, pkts, sa_arr, nb_pkts);
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734 for (i = 0; i < nb_pkts; i++) {
1735 if (sa_arr[i] == NULL)
1736 continue;
1737
1738 result_sa = sa = sa_arr[i];
1739 if (MBUF_NO_SEC_OFFLOAD(pkts[i]) &&
1740 sa->fallback_sessions > 0) {
1741 uintptr_t intsa = (uintptr_t)sa;
1742 intsa |= IPSEC_SA_OFFLOAD_FALLBACK_FLAG;
1743 result_sa = (void *)intsa;
1744 }
1745 sa_arr[i] = result_sa;
1746 }
1747}
1748
1749void
1750outbound_sa_lookup(struct sa_ctx *sa_ctx, uint32_t sa_idx[],
1751 void *sa[], uint16_t nb_pkts)
1752{
1753 uint32_t i;
1754
1755 for (i = 0; i < nb_pkts; i++)
1756 sa[i] = &sa_ctx->sa[sa_idx[i]];
1757}
1758
1759
1760
1761
1762int
1763sa_check_offloads(uint16_t port_id, uint64_t *rx_offloads,
1764 uint64_t *tx_offloads)
1765{
1766 struct ipsec_sa *rule;
1767 uint32_t idx_sa;
1768 enum rte_security_session_action_type rule_type;
1769
1770 *rx_offloads = 0;
1771 *tx_offloads = 0;
1772
1773
1774 for (idx_sa = 0; idx_sa < nb_sa_in; idx_sa++) {
1775 rule = &sa_in[idx_sa];
1776 rule_type = ipsec_get_action_type(rule);
1777 if ((rule_type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
1778 rule_type ==
1779 RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
1780 && rule->portid == port_id)
1781 *rx_offloads |= RTE_ETH_RX_OFFLOAD_SECURITY;
1782 }
1783
1784
1785 for (idx_sa = 0; idx_sa < nb_sa_out; idx_sa++) {
1786 rule = &sa_out[idx_sa];
1787 rule_type = ipsec_get_action_type(rule);
1788 if ((rule_type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
1789 rule_type ==
1790 RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
1791 && rule->portid == port_id) {
1792 *tx_offloads |= RTE_ETH_TX_OFFLOAD_SECURITY;
1793 if (rule->mss)
1794 *tx_offloads |= RTE_ETH_TX_OFFLOAD_TCP_TSO;
1795 }
1796 }
1797 return 0;
1798}
1799
1800void
1801sa_sort_arr(void)
1802{
1803 qsort(sa_in, nb_sa_in, sizeof(struct ipsec_sa), sa_cmp);
1804 qsort(sa_out, nb_sa_out, sizeof(struct ipsec_sa), sa_cmp);
1805}
1806
1807uint32_t
1808get_nb_crypto_sessions(void)
1809{
1810 return nb_crypto_sessions;
1811}
1812
