1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2016-2020 Intel Corporation 3 */ 4 #include <sys/types.h> 5 #include <netinet/in.h> 6 #include <netinet/ip.h> 7 8 #include <rte_branch_prediction.h> 9 #include <rte_event_crypto_adapter.h> 10 #include <rte_log.h> 11 #include <rte_crypto.h> 12 #include <rte_security.h> 13 #include <rte_cryptodev.h> 14 #include <rte_ipsec.h> 15 #include <rte_ethdev.h> 16 #include <rte_mbuf.h> 17 #include <rte_hash.h> 18 19 #include "ipsec.h" 20 #include "esp.h" 21 22 static inline void 23 set_ipsec_conf(struct ipsec_sa *sa, struct rte_security_ipsec_xform *ipsec) 24 { 25 if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) { 26 struct rte_security_ipsec_tunnel_param *tunnel = 27 &ipsec->tunnel; 28 if (IS_IP4_TUNNEL(sa->flags)) { 29 tunnel->type = 30 RTE_SECURITY_IPSEC_TUNNEL_IPV4; 31 tunnel->ipv4.ttl = IPDEFTTL; 32 33 memcpy((uint8_t *)&tunnel->ipv4.src_ip, 34 (uint8_t *)&sa->src.ip.ip4, 4); 35 36 memcpy((uint8_t *)&tunnel->ipv4.dst_ip, 37 (uint8_t *)&sa->dst.ip.ip4, 4); 38 } else if (IS_IP6_TUNNEL(sa->flags)) { 39 tunnel->type = 40 RTE_SECURITY_IPSEC_TUNNEL_IPV6; 41 tunnel->ipv6.hlimit = IPDEFTTL; 42 tunnel->ipv6.dscp = 0; 43 tunnel->ipv6.flabel = 0; 44 45 memcpy((uint8_t *)&tunnel->ipv6.src_addr, 46 (uint8_t *)&sa->src.ip.ip6.ip6_b, 16); 47 48 memcpy((uint8_t *)&tunnel->ipv6.dst_addr, 49 (uint8_t *)&sa->dst.ip.ip6.ip6_b, 16); 50 } 51 /* TODO support for Transport */ 52 } 53 ipsec->replay_win_sz = app_sa_prm.window_size; 54 ipsec->options.esn = app_sa_prm.enable_esn; 55 ipsec->options.udp_encap = sa->udp_encap; 56 if (IS_HW_REASSEMBLY_EN(sa->flags)) 57 ipsec->options.ip_reassembly_en = 1; 58 } 59 60 static inline int 61 verify_crypto_xform(const struct rte_cryptodev_capabilities *capabilities, 62 struct rte_crypto_sym_xform *crypto_xform) 63 { 64 const struct rte_cryptodev_capabilities *crypto_cap; 65 int j = 0; 66 67 while ((crypto_cap = &capabilities[j++])->op != RTE_CRYPTO_OP_TYPE_UNDEFINED) { 68 if (crypto_cap->op == RTE_CRYPTO_OP_TYPE_SYMMETRIC && 69 crypto_cap->sym.xform_type == crypto_xform->type) { 70 if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD && 71 crypto_cap->sym.aead.algo == crypto_xform->aead.algo) { 72 if (rte_cryptodev_sym_capability_check_aead(&crypto_cap->sym, 73 crypto_xform->aead.key.length, 74 crypto_xform->aead.digest_length, 75 crypto_xform->aead.aad_length, 76 crypto_xform->aead.iv.length) == 0) 77 return 0; 78 } 79 if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER && 80 crypto_cap->sym.cipher.algo == crypto_xform->cipher.algo) { 81 if (rte_cryptodev_sym_capability_check_cipher(&crypto_cap->sym, 82 crypto_xform->cipher.key.length, 83 crypto_xform->cipher.iv.length) == 0) 84 return 0; 85 } 86 if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AUTH && 87 crypto_cap->sym.auth.algo == crypto_xform->auth.algo) { 88 if (rte_cryptodev_sym_capability_check_auth(&crypto_cap->sym, 89 crypto_xform->auth.key.length, 90 crypto_xform->auth.digest_length, 91 crypto_xform->auth.iv.length) == 0) 92 return 0; 93 } 94 } 95 } 96 97 return -ENOTSUP; 98 } 99 100 static inline int 101 verify_crypto_capabilities(const struct rte_cryptodev_capabilities *capabilities, 102 struct rte_crypto_sym_xform *crypto_xform) 103 { 104 if (crypto_xform->next != NULL) 105 return (verify_crypto_xform(capabilities, crypto_xform) || 106 verify_crypto_xform(capabilities, crypto_xform->next)); 107 else 108 return verify_crypto_xform(capabilities, crypto_xform); 109 } 110 111 static inline int 112 verify_ipsec_capabilities(struct rte_security_ipsec_xform *ipsec_xform, 113 const struct rte_security_capability *sec_cap) 114 { 115 /* Verify security capabilities */ 116 117 if (ipsec_xform->options.esn == 1 && sec_cap->ipsec.options.esn == 0) { 118 RTE_LOG(INFO, USER1, "ESN is not supported\n"); 119 return -ENOTSUP; 120 } 121 122 if (ipsec_xform->options.udp_encap == 1 && 123 sec_cap->ipsec.options.udp_encap == 0) { 124 RTE_LOG(INFO, USER1, "UDP encapsulation is not supported\n"); 125 return -ENOTSUP; 126 } 127 128 if (ipsec_xform->options.udp_ports_verify == 1 && 129 sec_cap->ipsec.options.udp_ports_verify == 0) { 130 RTE_LOG(DEBUG, USER1, 131 "UDP encapsulation ports verification is not supported\n"); 132 return -ENOTSUP; 133 } 134 135 if (ipsec_xform->options.copy_dscp == 1 && 136 sec_cap->ipsec.options.copy_dscp == 0) { 137 RTE_LOG(DEBUG, USER1, "Copy DSCP is not supported\n"); 138 return -ENOTSUP; 139 } 140 141 if (ipsec_xform->options.copy_flabel == 1 && 142 sec_cap->ipsec.options.copy_flabel == 0) { 143 RTE_LOG(DEBUG, USER1, "Copy Flow Label is not supported\n"); 144 return -ENOTSUP; 145 } 146 147 if (ipsec_xform->options.copy_df == 1 && 148 sec_cap->ipsec.options.copy_df == 0) { 149 RTE_LOG(DEBUG, USER1, "Copy DP bit is not supported\n"); 150 return -ENOTSUP; 151 } 152 153 if (ipsec_xform->options.dec_ttl == 1 && 154 sec_cap->ipsec.options.dec_ttl == 0) { 155 RTE_LOG(DEBUG, USER1, "Decrement TTL is not supported\n"); 156 return -ENOTSUP; 157 } 158 159 if (ipsec_xform->options.ecn == 1 && sec_cap->ipsec.options.ecn == 0) { 160 RTE_LOG(DEBUG, USER1, "ECN is not supported\n"); 161 return -ENOTSUP; 162 } 163 164 if (ipsec_xform->options.stats == 1 && 165 sec_cap->ipsec.options.stats == 0) { 166 RTE_LOG(DEBUG, USER1, "Stats is not supported\n"); 167 return -ENOTSUP; 168 } 169 170 if ((ipsec_xform->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) && 171 (ipsec_xform->options.iv_gen_disable == 1) && 172 (sec_cap->ipsec.options.iv_gen_disable != 1)) { 173 RTE_LOG(DEBUG, USER1, "Application provided IV is not supported\n"); 174 return -ENOTSUP; 175 } 176 177 if ((ipsec_xform->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) && 178 (ipsec_xform->options.tunnel_hdr_verify > 179 sec_cap->ipsec.options.tunnel_hdr_verify)) { 180 RTE_LOG(DEBUG, USER1, "Tunnel header verify is not supported\n"); 181 return -ENOTSUP; 182 } 183 184 if (ipsec_xform->options.ip_csum_enable == 1 && 185 sec_cap->ipsec.options.ip_csum_enable == 0) { 186 RTE_LOG(DEBUG, USER1, "Inner IP checksum is not supported\n"); 187 return -ENOTSUP; 188 } 189 190 if (ipsec_xform->options.l4_csum_enable == 1 && 191 sec_cap->ipsec.options.l4_csum_enable == 0) { 192 RTE_LOG(DEBUG, USER1, "Inner L4 checksum is not supported\n"); 193 return -ENOTSUP; 194 } 195 196 if (ipsec_xform->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) { 197 if (ipsec_xform->replay_win_sz > sec_cap->ipsec.replay_win_sz_max) { 198 RTE_LOG(DEBUG, USER1, "Replay window size is not supported\n"); 199 return -ENOTSUP; 200 } 201 } 202 203 return 0; 204 } 205 206 207 static inline int 208 verify_security_capabilities(void *ctx, 209 struct rte_security_session_conf *sess_conf, 210 uint32_t *ol_flags) 211 { 212 struct rte_security_capability_idx sec_cap_idx; 213 const struct rte_security_capability *sec_cap; 214 215 sec_cap_idx.action = sess_conf->action_type; 216 sec_cap_idx.protocol = sess_conf->protocol; 217 sec_cap_idx.ipsec.proto = sess_conf->ipsec.proto; 218 sec_cap_idx.ipsec.mode = sess_conf->ipsec.mode; 219 sec_cap_idx.ipsec.direction = sess_conf->ipsec.direction; 220 221 sec_cap = rte_security_capability_get(ctx, &sec_cap_idx); 222 if (sec_cap == NULL) 223 return -ENOTSUP; 224 225 if (verify_crypto_capabilities(sec_cap->crypto_capabilities, 226 sess_conf->crypto_xform)) 227 return -ENOTSUP; 228 229 if (verify_ipsec_capabilities(&sess_conf->ipsec, sec_cap)) 230 return -ENOTSUP; 231 232 if (ol_flags != NULL) 233 *ol_flags = sec_cap->ol_flags; 234 235 return 0; 236 } 237 238 int 239 create_lookaside_session(struct ipsec_ctx *ipsec_ctx_lcore[], 240 struct socket_ctx *skt_ctx, const struct eventmode_conf *em_conf, 241 struct ipsec_sa *sa, struct rte_ipsec_session *ips) 242 { 243 uint16_t cdev_id = RTE_CRYPTO_MAX_DEVS; 244 enum rte_crypto_op_sess_type sess_type; 245 struct rte_cryptodev_info cdev_info; 246 enum rte_crypto_op_type op_type; 247 unsigned long cdev_id_qp = 0; 248 struct ipsec_ctx *ipsec_ctx; 249 struct cdev_key key = { 0 }; 250 void *sess = NULL; 251 uint32_t lcore_id; 252 int32_t ret = 0; 253 254 RTE_LCORE_FOREACH(lcore_id) { 255 ipsec_ctx = ipsec_ctx_lcore[lcore_id]; 256 257 /* Core is not bound to any cryptodev, skip it */ 258 if (ipsec_ctx->cdev_map == NULL) 259 continue; 260 261 /* Looking for cryptodev, which can handle this SA */ 262 key.lcore_id = (uint8_t)lcore_id; 263 key.cipher_algo = (uint8_t)sa->cipher_algo; 264 key.auth_algo = (uint8_t)sa->auth_algo; 265 key.aead_algo = (uint8_t)sa->aead_algo; 266 267 ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key, 268 (void **)&cdev_id_qp); 269 if (ret == -ENOENT) 270 continue; 271 if (ret < 0) { 272 RTE_LOG(ERR, IPSEC, 273 "No cryptodev: core %u, cipher_algo %u, " 274 "auth_algo %u, aead_algo %u\n", 275 key.lcore_id, 276 key.cipher_algo, 277 key.auth_algo, 278 key.aead_algo); 279 return ret; 280 } 281 282 /* Verify that all cores are using same cryptodev for current 283 * algorithm combination, required by SA. 284 * Current cryptodev mapping process will map SA to the first 285 * cryptodev that matches requirements, so it's a double check, 286 * not an additional restriction. 287 */ 288 if (cdev_id == RTE_CRYPTO_MAX_DEVS) 289 cdev_id = ipsec_ctx->tbl[cdev_id_qp].id; 290 else if (cdev_id != ipsec_ctx->tbl[cdev_id_qp].id) { 291 RTE_LOG(ERR, IPSEC, 292 "SA mapping to multiple cryptodevs is " 293 "not supported!"); 294 return -EINVAL; 295 } 296 297 /* Store per core queue pair information */ 298 sa->cqp[lcore_id] = &ipsec_ctx->tbl[cdev_id_qp]; 299 } 300 if (cdev_id == RTE_CRYPTO_MAX_DEVS) { 301 RTE_LOG(WARNING, IPSEC, "No cores found to handle SA\n"); 302 return 0; 303 } 304 305 RTE_LOG(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev " 306 "%u\n", sa->spi, cdev_id); 307 308 if (ips->type != RTE_SECURITY_ACTION_TYPE_NONE && 309 ips->type != RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) { 310 struct rte_security_session_conf sess_conf = { 311 .action_type = ips->type, 312 .protocol = RTE_SECURITY_PROTOCOL_IPSEC, 313 {.ipsec = { 314 .spi = sa->spi, 315 .salt = sa->salt, 316 .options = { 0 }, 317 .replay_win_sz = 0, 318 .direction = sa->direction, 319 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP, 320 .mode = (IS_TUNNEL(sa->flags)) ? 321 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL : 322 RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT, 323 } }, 324 .crypto_xform = sa->xforms, 325 .userdata = NULL, 326 327 }; 328 329 if (ips->type == RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) { 330 void *ctx = rte_cryptodev_get_sec_ctx(cdev_id); 331 332 /* Set IPsec parameters in conf */ 333 set_ipsec_conf(sa, &(sess_conf.ipsec)); 334 335 if (verify_security_capabilities(ctx, &sess_conf, NULL)) { 336 RTE_LOG(ERR, IPSEC, 337 "Requested security session config not supported\n"); 338 return -1; 339 } 340 341 ips->security.ses = rte_security_session_create(ctx, 342 &sess_conf, skt_ctx->session_pool); 343 if (ips->security.ses == NULL) { 344 RTE_LOG(ERR, IPSEC, 345 "SEC Session init failed: err: %d\n", ret); 346 return -1; 347 } 348 ips->security.ctx = ctx; 349 350 sess = ips->security.ses; 351 op_type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 352 sess_type = RTE_CRYPTO_OP_SECURITY_SESSION; 353 } else { 354 RTE_LOG(ERR, IPSEC, "Inline not supported\n"); 355 return -1; 356 } 357 } else { 358 struct rte_cryptodev_info info; 359 360 rte_cryptodev_info_get(cdev_id, &info); 361 362 if (ips->type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) { 363 if (!(info.feature_flags & 364 RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO)) 365 return -ENOTSUP; 366 367 } 368 369 if (verify_crypto_capabilities(info.capabilities, sa->xforms)) { 370 RTE_LOG(ERR, IPSEC, 371 "Requested crypto session config not supported\n"); 372 return -1; 373 } 374 375 ips->crypto.dev_id = cdev_id; 376 ips->crypto.ses = rte_cryptodev_sym_session_create(cdev_id, 377 sa->xforms, skt_ctx->session_pool); 378 379 rte_cryptodev_info_get(cdev_id, &cdev_info); 380 } 381 382 /* Setup meta data required by event crypto adapter */ 383 if (em_conf->enable_event_crypto_adapter && sess != NULL) { 384 union rte_event_crypto_metadata m_data; 385 const struct eventdev_params *eventdev_conf; 386 387 eventdev_conf = &(em_conf->eventdev_config[0]); 388 memset(&m_data, 0, sizeof(m_data)); 389 390 /* Fill in response information */ 391 m_data.response_info.sched_type = em_conf->ext_params.sched_type; 392 m_data.response_info.op = RTE_EVENT_OP_NEW; 393 m_data.response_info.queue_id = eventdev_conf->ev_cpt_queue_id; 394 395 /* Fill in request information */ 396 m_data.request_info.cdev_id = cdev_id; 397 m_data.request_info.queue_pair_id = 0; 398 399 /* Attach meta info to session */ 400 rte_cryptodev_session_event_mdata_set(cdev_id, sess, op_type, 401 sess_type, &m_data, sizeof(m_data)); 402 } 403 404 return 0; 405 } 406 407 int 408 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa, 409 struct rte_ipsec_session *ips) 410 { 411 int32_t ret = 0; 412 void *sec_ctx; 413 struct rte_security_session_conf sess_conf = { 414 .action_type = ips->type, 415 .protocol = RTE_SECURITY_PROTOCOL_IPSEC, 416 {.ipsec = { 417 .spi = sa->spi, 418 .salt = sa->salt, 419 .options = { 0 }, 420 .replay_win_sz = 0, 421 .direction = sa->direction, 422 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP 423 } }, 424 .crypto_xform = sa->xforms, 425 .userdata = NULL, 426 }; 427 428 if (IS_TRANSPORT(sa->flags)) { 429 sess_conf.ipsec.mode = RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT; 430 if (IS_IP4(sa->flags)) { 431 sess_conf.ipsec.tunnel.type = 432 RTE_SECURITY_IPSEC_TUNNEL_IPV4; 433 434 sess_conf.ipsec.tunnel.ipv4.src_ip.s_addr = 435 sa->src.ip.ip4; 436 sess_conf.ipsec.tunnel.ipv4.dst_ip.s_addr = 437 sa->dst.ip.ip4; 438 } else if (IS_IP6(sa->flags)) { 439 sess_conf.ipsec.tunnel.type = 440 RTE_SECURITY_IPSEC_TUNNEL_IPV6; 441 442 memcpy(sess_conf.ipsec.tunnel.ipv6.src_addr.s6_addr, 443 sa->src.ip.ip6.ip6_b, 16); 444 memcpy(sess_conf.ipsec.tunnel.ipv6.dst_addr.s6_addr, 445 sa->dst.ip.ip6.ip6_b, 16); 446 } 447 } else if (IS_TUNNEL(sa->flags)) { 448 sess_conf.ipsec.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL; 449 450 if (IS_IP4(sa->flags)) { 451 sess_conf.ipsec.tunnel.type = 452 RTE_SECURITY_IPSEC_TUNNEL_IPV4; 453 454 sess_conf.ipsec.tunnel.ipv4.src_ip.s_addr = 455 sa->src.ip.ip4; 456 sess_conf.ipsec.tunnel.ipv4.dst_ip.s_addr = 457 sa->dst.ip.ip4; 458 } else if (IS_IP6(sa->flags)) { 459 sess_conf.ipsec.tunnel.type = 460 RTE_SECURITY_IPSEC_TUNNEL_IPV6; 461 462 memcpy(sess_conf.ipsec.tunnel.ipv6.src_addr.s6_addr, 463 sa->src.ip.ip6.ip6_b, 16); 464 memcpy(sess_conf.ipsec.tunnel.ipv6.dst_addr.s6_addr, 465 sa->dst.ip.ip6.ip6_b, 16); 466 } else { 467 RTE_LOG(ERR, IPSEC, "invalid tunnel type\n"); 468 return -1; 469 } 470 } 471 472 if (sa->udp_encap) { 473 sess_conf.ipsec.options.udp_encap = 1; 474 sess_conf.ipsec.udp.sport = htons(sa->udp.sport); 475 sess_conf.ipsec.udp.dport = htons(sa->udp.dport); 476 } 477 478 if (sa->esn > 0) { 479 sess_conf.ipsec.options.esn = 1; 480 sess_conf.ipsec.esn.value = sa->esn; 481 } 482 483 484 RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n", 485 sa->spi, sa->portid); 486 487 if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) { 488 struct rte_flow_error err; 489 int ret = 0; 490 491 sec_ctx = rte_eth_dev_get_sec_ctx(sa->portid); 492 if (sec_ctx == NULL) { 493 RTE_LOG(ERR, IPSEC, 494 " rte_eth_dev_get_sec_ctx failed\n"); 495 return -1; 496 } 497 498 if (verify_security_capabilities(sec_ctx, &sess_conf, 499 &ips->security.ol_flags)) { 500 RTE_LOG(ERR, IPSEC, 501 "Requested security session config not supported\n"); 502 return -1; 503 } 504 505 ips->security.ses = rte_security_session_create(sec_ctx, 506 &sess_conf, skt_ctx->session_pool); 507 if (ips->security.ses == NULL) { 508 RTE_LOG(ERR, IPSEC, 509 "SEC Session init failed: err: %d\n", ret); 510 return -1; 511 } 512 513 ips->security.ctx = sec_ctx; 514 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH; 515 516 if (IS_IP6(sa->flags)) { 517 sa->pattern[1].mask = &rte_flow_item_ipv6_mask; 518 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6; 519 sa->pattern[1].spec = &sa->ipv6_spec; 520 521 memcpy(sa->ipv6_spec.hdr.dst_addr, 522 sa->dst.ip.ip6.ip6_b, 16); 523 memcpy(sa->ipv6_spec.hdr.src_addr, 524 sa->src.ip.ip6.ip6_b, 16); 525 } else if (IS_IP4(sa->flags)) { 526 sa->pattern[1].mask = &rte_flow_item_ipv4_mask; 527 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4; 528 sa->pattern[1].spec = &sa->ipv4_spec; 529 530 sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4; 531 sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4; 532 } 533 534 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi); 535 536 if (sa->udp_encap) { 537 538 sa->udp_spec.hdr.dst_port = 539 rte_cpu_to_be_16(sa->udp.dport); 540 sa->udp_spec.hdr.src_port = 541 rte_cpu_to_be_16(sa->udp.sport); 542 543 sa->pattern[2].mask = &rte_flow_item_udp_mask; 544 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_UDP; 545 sa->pattern[2].spec = &sa->udp_spec; 546 547 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_ESP; 548 sa->pattern[3].spec = &sa->esp_spec; 549 sa->pattern[3].mask = &rte_flow_item_esp_mask; 550 551 sa->pattern[4].type = RTE_FLOW_ITEM_TYPE_END; 552 } else { 553 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP; 554 sa->pattern[2].spec = &sa->esp_spec; 555 sa->pattern[2].mask = &rte_flow_item_esp_mask; 556 557 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END; 558 } 559 560 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY; 561 sa->action[0].conf = ips->security.ses; 562 563 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END; 564 565 sa->attr.egress = (sa->direction == 566 RTE_SECURITY_IPSEC_SA_DIR_EGRESS); 567 sa->attr.ingress = (sa->direction == 568 RTE_SECURITY_IPSEC_SA_DIR_INGRESS); 569 if (sa->attr.ingress) { 570 uint8_t rss_key[64]; 571 struct rte_eth_rss_conf rss_conf = { 572 .rss_key = rss_key, 573 .rss_key_len = sizeof(rss_key), 574 }; 575 struct rte_eth_dev_info dev_info; 576 uint16_t queue[RTE_MAX_QUEUES_PER_PORT]; 577 struct rte_flow_action_rss action_rss; 578 unsigned int i; 579 unsigned int j; 580 581 /* Don't create flow if default flow is created */ 582 if (flow_info_tbl[sa->portid].rx_def_flow) 583 return 0; 584 585 ret = rte_eth_dev_info_get(sa->portid, &dev_info); 586 if (ret != 0) { 587 RTE_LOG(ERR, IPSEC, 588 "Error during getting device (port %u) info: %s\n", 589 sa->portid, strerror(-ret)); 590 return ret; 591 } 592 593 sa->action[2].type = RTE_FLOW_ACTION_TYPE_END; 594 /* Try RSS. */ 595 sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS; 596 sa->action[1].conf = &action_rss; 597 ret = rte_eth_dev_rss_hash_conf_get(sa->portid, 598 &rss_conf); 599 if (ret != 0) { 600 RTE_LOG(ERR, IPSEC, 601 "rte_eth_dev_rss_hash_conf_get:ret=%d\n", 602 ret); 603 return -1; 604 } 605 for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i) 606 queue[j++] = i; 607 608 action_rss = (struct rte_flow_action_rss){ 609 .types = rss_conf.rss_hf, 610 .key_len = rss_conf.rss_key_len, 611 .queue_num = j, 612 .key = rss_key, 613 .queue = queue, 614 }; 615 ret = rte_flow_validate(sa->portid, &sa->attr, 616 sa->pattern, sa->action, 617 &err); 618 if (!ret) 619 goto flow_create; 620 /* Try Queue. */ 621 sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE; 622 sa->action[1].conf = 623 &(struct rte_flow_action_queue){ 624 .index = 0, 625 }; 626 ret = rte_flow_validate(sa->portid, &sa->attr, 627 sa->pattern, sa->action, 628 &err); 629 /* Try End. */ 630 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END; 631 sa->action[1].conf = NULL; 632 ret = rte_flow_validate(sa->portid, &sa->attr, 633 sa->pattern, sa->action, 634 &err); 635 if (ret) 636 goto flow_create_failure; 637 } else if (sa->attr.egress && 638 (ips->security.ol_flags & 639 RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) { 640 sa->action[1].type = 641 RTE_FLOW_ACTION_TYPE_PASSTHRU; 642 sa->action[2].type = 643 RTE_FLOW_ACTION_TYPE_END; 644 } 645 flow_create: 646 sa->flow = rte_flow_create(sa->portid, 647 &sa->attr, sa->pattern, sa->action, &err); 648 if (sa->flow == NULL) { 649 flow_create_failure: 650 RTE_LOG(ERR, IPSEC, 651 "Failed to create ipsec flow msg: %s\n", 652 err.message); 653 return -1; 654 } 655 } else if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) { 656 sec_ctx = rte_eth_dev_get_sec_ctx(sa->portid); 657 658 if (sec_ctx == NULL) { 659 RTE_LOG(ERR, IPSEC, 660 "Ethernet device doesn't have security features registered\n"); 661 return -1; 662 } 663 664 /* Set IPsec parameters in conf */ 665 set_ipsec_conf(sa, &(sess_conf.ipsec)); 666 667 /* Save SA as userdata for the security session. When 668 * the packet is received, this userdata will be 669 * retrieved using the metadata from the packet. 670 * 671 * The PMD is expected to set similar metadata for other 672 * operations, like rte_eth_event, which are tied to 673 * security session. In such cases, the userdata could 674 * be obtained to uniquely identify the security 675 * parameters denoted. 676 */ 677 678 sess_conf.userdata = (void *) sa; 679 680 if (verify_security_capabilities(sec_ctx, &sess_conf, 681 &ips->security.ol_flags)) { 682 RTE_LOG(ERR, IPSEC, 683 "Requested security session config not supported\n"); 684 return -1; 685 } 686 687 ips->security.ses = rte_security_session_create(sec_ctx, 688 &sess_conf, skt_ctx->session_pool); 689 if (ips->security.ses == NULL) { 690 RTE_LOG(ERR, IPSEC, 691 "SEC Session init failed: err: %d\n", ret); 692 return -1; 693 } 694 695 ips->security.ctx = sec_ctx; 696 } 697 698 return 0; 699 } 700 701 int 702 create_ipsec_esp_flow(struct ipsec_sa *sa) 703 { 704 int ret = 0; 705 struct rte_flow_error err = {}; 706 if (sa->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) { 707 RTE_LOG(ERR, IPSEC, 708 "No Flow director rule for Egress traffic\n"); 709 return -1; 710 } 711 if (sa->flags == TRANSPORT) { 712 RTE_LOG(ERR, IPSEC, 713 "No Flow director rule for transport mode\n"); 714 return -1; 715 } 716 sa->action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE; 717 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH; 718 sa->action[0].conf = &(struct rte_flow_action_queue) { 719 .index = sa->fdir_qid, 720 }; 721 sa->attr.egress = 0; 722 sa->attr.ingress = 1; 723 if (IS_IP6(sa->flags)) { 724 sa->pattern[1].mask = &rte_flow_item_ipv6_mask; 725 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6; 726 sa->pattern[1].spec = &sa->ipv6_spec; 727 memcpy(sa->ipv6_spec.hdr.dst_addr, 728 sa->dst.ip.ip6.ip6_b, sizeof(sa->dst.ip.ip6.ip6_b)); 729 memcpy(sa->ipv6_spec.hdr.src_addr, 730 sa->src.ip.ip6.ip6_b, sizeof(sa->src.ip.ip6.ip6_b)); 731 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP; 732 sa->pattern[2].spec = &sa->esp_spec; 733 sa->pattern[2].mask = &rte_flow_item_esp_mask; 734 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi); 735 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END; 736 } else if (IS_IP4(sa->flags)) { 737 sa->pattern[1].mask = &rte_flow_item_ipv4_mask; 738 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4; 739 sa->pattern[1].spec = &sa->ipv4_spec; 740 sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4; 741 sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4; 742 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP; 743 sa->pattern[2].spec = &sa->esp_spec; 744 sa->pattern[2].mask = &rte_flow_item_esp_mask; 745 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi); 746 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END; 747 } 748 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END; 749 750 ret = rte_flow_validate(sa->portid, &sa->attr, sa->pattern, sa->action, 751 &err); 752 if (ret < 0) { 753 RTE_LOG(ERR, IPSEC, "Flow validation failed %s\n", err.message); 754 return ret; 755 } 756 757 sa->flow = rte_flow_create(sa->portid, &sa->attr, sa->pattern, 758 sa->action, &err); 759 if (!sa->flow) { 760 RTE_LOG(ERR, IPSEC, "Flow creation failed %s\n", err.message); 761 return -1; 762 } 763 764 return 0; 765 } 766 767 /* 768 * queue crypto-ops into PMD queue. 769 */ 770 void 771 enqueue_cop_burst(struct cdev_qp *cqp) 772 { 773 uint32_t i, len, ret; 774 775 len = cqp->len; 776 ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len); 777 if (ret < len) { 778 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:" 779 " enqueued %u crypto ops out of %u\n", 780 cqp->id, cqp->qp, ret, len); 781 /* drop packets that we fail to enqueue */ 782 for (i = ret; i < len; i++) 783 free_pkts(&cqp->buf[i]->sym->m_src, 1); 784 } 785 cqp->in_flight += ret; 786 cqp->len = 0; 787 } 788 789 static inline void 790 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop) 791 { 792 cqp->buf[cqp->len++] = cop; 793 794 if (cqp->len == MAX_PKT_BURST) 795 enqueue_cop_burst(cqp); 796 } 797 798 static inline void 799 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx, 800 struct rte_mbuf *pkts[], void *sas[], 801 uint16_t nb_pkts) 802 { 803 int32_t ret = 0, i; 804 struct ipsec_mbuf_metadata *priv; 805 struct rte_crypto_sym_op *sym_cop; 806 struct ipsec_sa *sa; 807 struct rte_ipsec_session *ips; 808 809 for (i = 0; i < nb_pkts; i++) { 810 if (unlikely(sas[i] == NULL)) { 811 free_pkts(&pkts[i], 1); 812 continue; 813 } 814 815 rte_prefetch0(sas[i]); 816 rte_prefetch0(pkts[i]); 817 818 priv = get_priv(pkts[i]); 819 sa = ipsec_mask_saptr(sas[i]); 820 priv->sa = sa; 821 ips = ipsec_get_primary_session(sa); 822 823 switch (ips->type) { 824 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL: 825 priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 826 priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 827 828 rte_prefetch0(&priv->sym_cop); 829 830 if (unlikely(ips->security.ses == NULL)) { 831 free_pkts(&pkts[i], 1); 832 continue; 833 } 834 835 if (unlikely((pkts[i]->packet_type & 836 (RTE_PTYPE_TUNNEL_MASK | 837 RTE_PTYPE_L4_MASK)) == 838 MBUF_PTYPE_TUNNEL_ESP_IN_UDP && 839 sa->udp_encap != 1)) { 840 free_pkts(&pkts[i], 1); 841 continue; 842 } 843 844 sym_cop = get_sym_cop(&priv->cop); 845 sym_cop->m_src = pkts[i]; 846 847 rte_security_attach_session(&priv->cop, 848 ips->security.ses); 849 break; 850 851 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO: 852 RTE_LOG(ERR, IPSEC, "CPU crypto is not supported by the" 853 " legacy mode."); 854 free_pkts(&pkts[i], 1); 855 continue; 856 857 case RTE_SECURITY_ACTION_TYPE_NONE: 858 859 priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 860 priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 861 862 rte_prefetch0(&priv->sym_cop); 863 864 if (unlikely(ips->crypto.ses == NULL)) { 865 free_pkts(&pkts[i], 1); 866 continue; 867 } 868 869 rte_crypto_op_attach_sym_session(&priv->cop, 870 ips->crypto.ses); 871 872 ret = xform_func(pkts[i], sa, &priv->cop); 873 if (unlikely(ret)) { 874 free_pkts(&pkts[i], 1); 875 continue; 876 } 877 break; 878 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL: 879 RTE_ASSERT(ips->security.ses != NULL); 880 ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i]; 881 if (ips->security.ol_flags & 882 RTE_SECURITY_TX_OLOAD_NEED_MDATA) 883 rte_security_set_pkt_metadata( 884 ips->security.ctx, ips->security.ses, 885 pkts[i], NULL); 886 continue; 887 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO: 888 RTE_ASSERT(ips->security.ses != NULL); 889 priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 890 priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 891 892 rte_prefetch0(&priv->sym_cop); 893 rte_security_attach_session(&priv->cop, 894 ips->security.ses); 895 896 ret = xform_func(pkts[i], sa, &priv->cop); 897 if (unlikely(ret)) { 898 free_pkts(&pkts[i], 1); 899 continue; 900 } 901 902 ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i]; 903 if (ips->security.ol_flags & 904 RTE_SECURITY_TX_OLOAD_NEED_MDATA) 905 rte_security_set_pkt_metadata( 906 ips->security.ctx, ips->security.ses, 907 pkts[i], NULL); 908 continue; 909 } 910 911 enqueue_cop(sa->cqp[ipsec_ctx->lcore_id], &priv->cop); 912 } 913 } 914 915 static inline int32_t 916 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx, 917 struct rte_mbuf *pkts[], uint16_t max_pkts) 918 { 919 int32_t nb_pkts, ret; 920 struct ipsec_mbuf_metadata *priv; 921 struct ipsec_sa *sa; 922 struct rte_mbuf *pkt; 923 924 nb_pkts = 0; 925 while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) { 926 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt]; 927 rte_prefetch0(pkt); 928 priv = get_priv(pkt); 929 sa = priv->sa; 930 ret = xform_func(pkt, sa, &priv->cop); 931 if (unlikely(ret)) { 932 free_pkts(&pkt, 1); 933 continue; 934 } 935 pkts[nb_pkts++] = pkt; 936 } 937 938 return nb_pkts; 939 } 940 941 static inline int 942 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx, 943 struct rte_mbuf *pkts[], uint16_t max_pkts) 944 { 945 int32_t nb_pkts = 0, ret = 0, i, j, nb_cops; 946 struct ipsec_mbuf_metadata *priv; 947 struct rte_crypto_op *cops[max_pkts]; 948 struct ipsec_sa *sa; 949 struct rte_mbuf *pkt; 950 951 for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) { 952 struct cdev_qp *cqp; 953 954 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++]; 955 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps) 956 ipsec_ctx->last_qp %= ipsec_ctx->nb_qps; 957 958 if (cqp->in_flight == 0) 959 continue; 960 961 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp, 962 cops, max_pkts - nb_pkts); 963 964 cqp->in_flight -= nb_cops; 965 966 for (j = 0; j < nb_cops; j++) { 967 pkt = cops[j]->sym->m_src; 968 rte_prefetch0(pkt); 969 970 priv = get_priv(pkt); 971 sa = priv->sa; 972 973 RTE_ASSERT(sa != NULL); 974 975 if (ipsec_get_action_type(sa) == 976 RTE_SECURITY_ACTION_TYPE_NONE) { 977 ret = xform_func(pkt, sa, cops[j]); 978 if (unlikely(ret)) { 979 free_pkts(&pkt, 1); 980 continue; 981 } 982 } else if (ipsec_get_action_type(sa) == 983 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) { 984 if (cops[j]->status) { 985 free_pkts(&pkt, 1); 986 continue; 987 } 988 } 989 pkts[nb_pkts++] = pkt; 990 } 991 } 992 993 /* return packets */ 994 return nb_pkts; 995 } 996 997 uint16_t 998 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 999 uint16_t nb_pkts, uint16_t len) 1000 { 1001 void *sas[nb_pkts]; 1002 1003 inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts); 1004 1005 ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts); 1006 1007 return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len); 1008 } 1009 1010 uint16_t 1011 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 1012 uint16_t len) 1013 { 1014 return ipsec_dequeue(esp_inbound_post, ctx, pkts, len); 1015 } 1016 1017 uint16_t 1018 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 1019 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len) 1020 { 1021 void *sas[nb_pkts]; 1022 1023 outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts); 1024 1025 ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts); 1026 1027 return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len); 1028 } 1029 1030 uint16_t 1031 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 1032 uint16_t len) 1033 { 1034 return ipsec_dequeue(esp_outbound_post, ctx, pkts, len); 1035 } 1036