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(struct rte_security_ctx *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 struct rte_security_ctx *ctx = (struct rte_security_ctx *) 331 rte_cryptodev_get_sec_ctx( 332 cdev_id); 333 334 /* Set IPsec parameters in conf */ 335 set_ipsec_conf(sa, &(sess_conf.ipsec)); 336 337 if (verify_security_capabilities(ctx, &sess_conf, NULL)) { 338 RTE_LOG(ERR, IPSEC, 339 "Requested security session config not supported\n"); 340 return -1; 341 } 342 343 ips->security.ses = rte_security_session_create(ctx, 344 &sess_conf, skt_ctx->session_pool); 345 if (ips->security.ses == NULL) { 346 RTE_LOG(ERR, IPSEC, 347 "SEC Session init failed: err: %d\n", ret); 348 return -1; 349 } 350 ips->security.ctx = ctx; 351 352 sess = ips->security.ses; 353 op_type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 354 sess_type = RTE_CRYPTO_OP_SECURITY_SESSION; 355 } else { 356 RTE_LOG(ERR, IPSEC, "Inline not supported\n"); 357 return -1; 358 } 359 } else { 360 struct rte_cryptodev_info info; 361 362 rte_cryptodev_info_get(cdev_id, &info); 363 364 if (ips->type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) { 365 if (!(info.feature_flags & 366 RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO)) 367 return -ENOTSUP; 368 369 } 370 371 if (verify_crypto_capabilities(info.capabilities, sa->xforms)) { 372 RTE_LOG(ERR, IPSEC, 373 "Requested crypto session config not supported\n"); 374 return -1; 375 } 376 377 ips->crypto.dev_id = cdev_id; 378 ips->crypto.ses = rte_cryptodev_sym_session_create(cdev_id, 379 sa->xforms, skt_ctx->session_pool); 380 381 rte_cryptodev_info_get(cdev_id, &cdev_info); 382 } 383 384 /* Setup meta data required by event crypto adapter */ 385 if (em_conf->enable_event_crypto_adapter && sess != NULL) { 386 union rte_event_crypto_metadata m_data; 387 const struct eventdev_params *eventdev_conf; 388 389 eventdev_conf = &(em_conf->eventdev_config[0]); 390 memset(&m_data, 0, sizeof(m_data)); 391 392 /* Fill in response information */ 393 m_data.response_info.sched_type = em_conf->ext_params.sched_type; 394 m_data.response_info.op = RTE_EVENT_OP_NEW; 395 m_data.response_info.queue_id = eventdev_conf->ev_cpt_queue_id; 396 397 /* Fill in request information */ 398 m_data.request_info.cdev_id = cdev_id; 399 m_data.request_info.queue_pair_id = 0; 400 401 /* Attach meta info to session */ 402 rte_cryptodev_session_event_mdata_set(cdev_id, sess, op_type, 403 sess_type, &m_data, sizeof(m_data)); 404 } 405 406 return 0; 407 } 408 409 int 410 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa, 411 struct rte_ipsec_session *ips) 412 { 413 int32_t ret = 0; 414 struct rte_security_ctx *sec_ctx; 415 struct rte_security_session_conf sess_conf = { 416 .action_type = ips->type, 417 .protocol = RTE_SECURITY_PROTOCOL_IPSEC, 418 {.ipsec = { 419 .spi = sa->spi, 420 .salt = sa->salt, 421 .options = { 0 }, 422 .replay_win_sz = 0, 423 .direction = sa->direction, 424 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP 425 } }, 426 .crypto_xform = sa->xforms, 427 .userdata = NULL, 428 }; 429 430 if (IS_TRANSPORT(sa->flags)) { 431 sess_conf.ipsec.mode = RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT; 432 if (IS_IP4(sa->flags)) { 433 sess_conf.ipsec.tunnel.type = 434 RTE_SECURITY_IPSEC_TUNNEL_IPV4; 435 436 sess_conf.ipsec.tunnel.ipv4.src_ip.s_addr = 437 sa->src.ip.ip4; 438 sess_conf.ipsec.tunnel.ipv4.dst_ip.s_addr = 439 sa->dst.ip.ip4; 440 } else if (IS_IP6(sa->flags)) { 441 sess_conf.ipsec.tunnel.type = 442 RTE_SECURITY_IPSEC_TUNNEL_IPV6; 443 444 memcpy(sess_conf.ipsec.tunnel.ipv6.src_addr.s6_addr, 445 sa->src.ip.ip6.ip6_b, 16); 446 memcpy(sess_conf.ipsec.tunnel.ipv6.dst_addr.s6_addr, 447 sa->dst.ip.ip6.ip6_b, 16); 448 } 449 } else if (IS_TUNNEL(sa->flags)) { 450 sess_conf.ipsec.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL; 451 452 if (IS_IP4(sa->flags)) { 453 sess_conf.ipsec.tunnel.type = 454 RTE_SECURITY_IPSEC_TUNNEL_IPV4; 455 456 sess_conf.ipsec.tunnel.ipv4.src_ip.s_addr = 457 sa->src.ip.ip4; 458 sess_conf.ipsec.tunnel.ipv4.dst_ip.s_addr = 459 sa->dst.ip.ip4; 460 } else if (IS_IP6(sa->flags)) { 461 sess_conf.ipsec.tunnel.type = 462 RTE_SECURITY_IPSEC_TUNNEL_IPV6; 463 464 memcpy(sess_conf.ipsec.tunnel.ipv6.src_addr.s6_addr, 465 sa->src.ip.ip6.ip6_b, 16); 466 memcpy(sess_conf.ipsec.tunnel.ipv6.dst_addr.s6_addr, 467 sa->dst.ip.ip6.ip6_b, 16); 468 } else { 469 RTE_LOG(ERR, IPSEC, "invalid tunnel type\n"); 470 return -1; 471 } 472 } 473 474 if (sa->udp_encap) { 475 sess_conf.ipsec.options.udp_encap = 1; 476 sess_conf.ipsec.udp.sport = htons(sa->udp.sport); 477 sess_conf.ipsec.udp.dport = htons(sa->udp.dport); 478 } 479 480 if (sa->esn > 0) { 481 sess_conf.ipsec.options.esn = 1; 482 sess_conf.ipsec.esn.value = sa->esn; 483 } 484 485 486 RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n", 487 sa->spi, sa->portid); 488 489 if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) { 490 struct rte_flow_error err; 491 int ret = 0; 492 493 sec_ctx = (struct rte_security_ctx *) 494 rte_eth_dev_get_sec_ctx( 495 sa->portid); 496 if (sec_ctx == NULL) { 497 RTE_LOG(ERR, IPSEC, 498 " rte_eth_dev_get_sec_ctx failed\n"); 499 return -1; 500 } 501 502 if (verify_security_capabilities(sec_ctx, &sess_conf, 503 &ips->security.ol_flags)) { 504 RTE_LOG(ERR, IPSEC, 505 "Requested security session config not supported\n"); 506 return -1; 507 } 508 509 ips->security.ses = rte_security_session_create(sec_ctx, 510 &sess_conf, skt_ctx->session_pool); 511 if (ips->security.ses == NULL) { 512 RTE_LOG(ERR, IPSEC, 513 "SEC Session init failed: err: %d\n", ret); 514 return -1; 515 } 516 517 ips->security.ctx = sec_ctx; 518 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH; 519 520 if (IS_IP6(sa->flags)) { 521 sa->pattern[1].mask = &rte_flow_item_ipv6_mask; 522 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6; 523 sa->pattern[1].spec = &sa->ipv6_spec; 524 525 memcpy(sa->ipv6_spec.hdr.dst_addr, 526 sa->dst.ip.ip6.ip6_b, 16); 527 memcpy(sa->ipv6_spec.hdr.src_addr, 528 sa->src.ip.ip6.ip6_b, 16); 529 } else if (IS_IP4(sa->flags)) { 530 sa->pattern[1].mask = &rte_flow_item_ipv4_mask; 531 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4; 532 sa->pattern[1].spec = &sa->ipv4_spec; 533 534 sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4; 535 sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4; 536 } 537 538 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi); 539 540 if (sa->udp_encap) { 541 542 sa->udp_spec.hdr.dst_port = 543 rte_cpu_to_be_16(sa->udp.dport); 544 sa->udp_spec.hdr.src_port = 545 rte_cpu_to_be_16(sa->udp.sport); 546 547 sa->pattern[2].mask = &rte_flow_item_udp_mask; 548 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_UDP; 549 sa->pattern[2].spec = &sa->udp_spec; 550 551 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_ESP; 552 sa->pattern[3].spec = &sa->esp_spec; 553 sa->pattern[3].mask = &rte_flow_item_esp_mask; 554 555 sa->pattern[4].type = RTE_FLOW_ITEM_TYPE_END; 556 } else { 557 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP; 558 sa->pattern[2].spec = &sa->esp_spec; 559 sa->pattern[2].mask = &rte_flow_item_esp_mask; 560 561 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END; 562 } 563 564 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY; 565 sa->action[0].conf = ips->security.ses; 566 567 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END; 568 569 sa->attr.egress = (sa->direction == 570 RTE_SECURITY_IPSEC_SA_DIR_EGRESS); 571 sa->attr.ingress = (sa->direction == 572 RTE_SECURITY_IPSEC_SA_DIR_INGRESS); 573 if (sa->attr.ingress) { 574 uint8_t rss_key[64]; 575 struct rte_eth_rss_conf rss_conf = { 576 .rss_key = rss_key, 577 .rss_key_len = sizeof(rss_key), 578 }; 579 struct rte_eth_dev_info dev_info; 580 uint16_t queue[RTE_MAX_QUEUES_PER_PORT]; 581 struct rte_flow_action_rss action_rss; 582 unsigned int i; 583 unsigned int j; 584 585 /* Don't create flow if default flow is created */ 586 if (flow_info_tbl[sa->portid].rx_def_flow) 587 return 0; 588 589 ret = rte_eth_dev_info_get(sa->portid, &dev_info); 590 if (ret != 0) { 591 RTE_LOG(ERR, IPSEC, 592 "Error during getting device (port %u) info: %s\n", 593 sa->portid, strerror(-ret)); 594 return ret; 595 } 596 597 sa->action[2].type = RTE_FLOW_ACTION_TYPE_END; 598 /* Try RSS. */ 599 sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS; 600 sa->action[1].conf = &action_rss; 601 ret = rte_eth_dev_rss_hash_conf_get(sa->portid, 602 &rss_conf); 603 if (ret != 0) { 604 RTE_LOG(ERR, IPSEC, 605 "rte_eth_dev_rss_hash_conf_get:ret=%d\n", 606 ret); 607 return -1; 608 } 609 for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i) 610 queue[j++] = i; 611 612 action_rss = (struct rte_flow_action_rss){ 613 .types = rss_conf.rss_hf, 614 .key_len = rss_conf.rss_key_len, 615 .queue_num = j, 616 .key = rss_key, 617 .queue = queue, 618 }; 619 ret = rte_flow_validate(sa->portid, &sa->attr, 620 sa->pattern, sa->action, 621 &err); 622 if (!ret) 623 goto flow_create; 624 /* Try Queue. */ 625 sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE; 626 sa->action[1].conf = 627 &(struct rte_flow_action_queue){ 628 .index = 0, 629 }; 630 ret = rte_flow_validate(sa->portid, &sa->attr, 631 sa->pattern, sa->action, 632 &err); 633 /* Try End. */ 634 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END; 635 sa->action[1].conf = NULL; 636 ret = rte_flow_validate(sa->portid, &sa->attr, 637 sa->pattern, sa->action, 638 &err); 639 if (ret) 640 goto flow_create_failure; 641 } else if (sa->attr.egress && 642 (ips->security.ol_flags & 643 RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) { 644 sa->action[1].type = 645 RTE_FLOW_ACTION_TYPE_PASSTHRU; 646 sa->action[2].type = 647 RTE_FLOW_ACTION_TYPE_END; 648 } 649 flow_create: 650 sa->flow = rte_flow_create(sa->portid, 651 &sa->attr, sa->pattern, sa->action, &err); 652 if (sa->flow == NULL) { 653 flow_create_failure: 654 RTE_LOG(ERR, IPSEC, 655 "Failed to create ipsec flow msg: %s\n", 656 err.message); 657 return -1; 658 } 659 } else if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) { 660 sec_ctx = (struct rte_security_ctx *) 661 rte_eth_dev_get_sec_ctx(sa->portid); 662 663 if (sec_ctx == NULL) { 664 RTE_LOG(ERR, IPSEC, 665 "Ethernet device doesn't have security features registered\n"); 666 return -1; 667 } 668 669 /* Set IPsec parameters in conf */ 670 set_ipsec_conf(sa, &(sess_conf.ipsec)); 671 672 /* Save SA as userdata for the security session. When 673 * the packet is received, this userdata will be 674 * retrieved using the metadata from the packet. 675 * 676 * The PMD is expected to set similar metadata for other 677 * operations, like rte_eth_event, which are tied to 678 * security session. In such cases, the userdata could 679 * be obtained to uniquely identify the security 680 * parameters denoted. 681 */ 682 683 sess_conf.userdata = (void *) sa; 684 685 if (verify_security_capabilities(sec_ctx, &sess_conf, 686 &ips->security.ol_flags)) { 687 RTE_LOG(ERR, IPSEC, 688 "Requested security session config not supported\n"); 689 return -1; 690 } 691 692 ips->security.ses = rte_security_session_create(sec_ctx, 693 &sess_conf, skt_ctx->session_pool); 694 if (ips->security.ses == NULL) { 695 RTE_LOG(ERR, IPSEC, 696 "SEC Session init failed: err: %d\n", ret); 697 return -1; 698 } 699 700 ips->security.ctx = sec_ctx; 701 } 702 703 return 0; 704 } 705 706 int 707 create_ipsec_esp_flow(struct ipsec_sa *sa) 708 { 709 int ret = 0; 710 struct rte_flow_error err = {}; 711 if (sa->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) { 712 RTE_LOG(ERR, IPSEC, 713 "No Flow director rule for Egress traffic\n"); 714 return -1; 715 } 716 if (sa->flags == TRANSPORT) { 717 RTE_LOG(ERR, IPSEC, 718 "No Flow director rule for transport mode\n"); 719 return -1; 720 } 721 sa->action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE; 722 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH; 723 sa->action[0].conf = &(struct rte_flow_action_queue) { 724 .index = sa->fdir_qid, 725 }; 726 sa->attr.egress = 0; 727 sa->attr.ingress = 1; 728 if (IS_IP6(sa->flags)) { 729 sa->pattern[1].mask = &rte_flow_item_ipv6_mask; 730 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6; 731 sa->pattern[1].spec = &sa->ipv6_spec; 732 memcpy(sa->ipv6_spec.hdr.dst_addr, 733 sa->dst.ip.ip6.ip6_b, sizeof(sa->dst.ip.ip6.ip6_b)); 734 memcpy(sa->ipv6_spec.hdr.src_addr, 735 sa->src.ip.ip6.ip6_b, sizeof(sa->src.ip.ip6.ip6_b)); 736 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP; 737 sa->pattern[2].spec = &sa->esp_spec; 738 sa->pattern[2].mask = &rte_flow_item_esp_mask; 739 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi); 740 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END; 741 } else if (IS_IP4(sa->flags)) { 742 sa->pattern[1].mask = &rte_flow_item_ipv4_mask; 743 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4; 744 sa->pattern[1].spec = &sa->ipv4_spec; 745 sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4; 746 sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4; 747 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP; 748 sa->pattern[2].spec = &sa->esp_spec; 749 sa->pattern[2].mask = &rte_flow_item_esp_mask; 750 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi); 751 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END; 752 } 753 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END; 754 755 ret = rte_flow_validate(sa->portid, &sa->attr, sa->pattern, sa->action, 756 &err); 757 if (ret < 0) { 758 RTE_LOG(ERR, IPSEC, "Flow validation failed %s\n", err.message); 759 return ret; 760 } 761 762 sa->flow = rte_flow_create(sa->portid, &sa->attr, sa->pattern, 763 sa->action, &err); 764 if (!sa->flow) { 765 RTE_LOG(ERR, IPSEC, "Flow creation failed %s\n", err.message); 766 return -1; 767 } 768 769 return 0; 770 } 771 772 /* 773 * queue crypto-ops into PMD queue. 774 */ 775 void 776 enqueue_cop_burst(struct cdev_qp *cqp) 777 { 778 uint32_t i, len, ret; 779 780 len = cqp->len; 781 ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len); 782 if (ret < len) { 783 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:" 784 " enqueued %u crypto ops out of %u\n", 785 cqp->id, cqp->qp, ret, len); 786 /* drop packets that we fail to enqueue */ 787 for (i = ret; i < len; i++) 788 free_pkts(&cqp->buf[i]->sym->m_src, 1); 789 } 790 cqp->in_flight += ret; 791 cqp->len = 0; 792 } 793 794 static inline void 795 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop) 796 { 797 cqp->buf[cqp->len++] = cop; 798 799 if (cqp->len == MAX_PKT_BURST) 800 enqueue_cop_burst(cqp); 801 } 802 803 static inline void 804 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx, 805 struct rte_mbuf *pkts[], void *sas[], 806 uint16_t nb_pkts) 807 { 808 int32_t ret = 0, i; 809 struct ipsec_mbuf_metadata *priv; 810 struct rte_crypto_sym_op *sym_cop; 811 struct ipsec_sa *sa; 812 struct rte_ipsec_session *ips; 813 814 for (i = 0; i < nb_pkts; i++) { 815 if (unlikely(sas[i] == NULL)) { 816 free_pkts(&pkts[i], 1); 817 continue; 818 } 819 820 rte_prefetch0(sas[i]); 821 rte_prefetch0(pkts[i]); 822 823 priv = get_priv(pkts[i]); 824 sa = ipsec_mask_saptr(sas[i]); 825 priv->sa = sa; 826 ips = ipsec_get_primary_session(sa); 827 828 switch (ips->type) { 829 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL: 830 priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 831 priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 832 833 rte_prefetch0(&priv->sym_cop); 834 835 if (unlikely(ips->security.ses == NULL)) { 836 free_pkts(&pkts[i], 1); 837 continue; 838 } 839 840 if (unlikely((pkts[i]->packet_type & 841 (RTE_PTYPE_TUNNEL_MASK | 842 RTE_PTYPE_L4_MASK)) == 843 MBUF_PTYPE_TUNNEL_ESP_IN_UDP && 844 sa->udp_encap != 1)) { 845 free_pkts(&pkts[i], 1); 846 continue; 847 } 848 849 sym_cop = get_sym_cop(&priv->cop); 850 sym_cop->m_src = pkts[i]; 851 852 rte_security_attach_session(&priv->cop, 853 ips->security.ses); 854 break; 855 856 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO: 857 RTE_LOG(ERR, IPSEC, "CPU crypto is not supported by the" 858 " legacy mode."); 859 free_pkts(&pkts[i], 1); 860 continue; 861 862 case RTE_SECURITY_ACTION_TYPE_NONE: 863 864 priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 865 priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 866 867 rte_prefetch0(&priv->sym_cop); 868 869 if (unlikely(ips->crypto.ses == NULL)) { 870 free_pkts(&pkts[i], 1); 871 continue; 872 } 873 874 rte_crypto_op_attach_sym_session(&priv->cop, 875 ips->crypto.ses); 876 877 ret = xform_func(pkts[i], sa, &priv->cop); 878 if (unlikely(ret)) { 879 free_pkts(&pkts[i], 1); 880 continue; 881 } 882 break; 883 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL: 884 RTE_ASSERT(ips->security.ses != NULL); 885 ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i]; 886 if (ips->security.ol_flags & 887 RTE_SECURITY_TX_OLOAD_NEED_MDATA) 888 rte_security_set_pkt_metadata( 889 ips->security.ctx, ips->security.ses, 890 pkts[i], NULL); 891 continue; 892 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO: 893 RTE_ASSERT(ips->security.ses != NULL); 894 priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC; 895 priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 896 897 rte_prefetch0(&priv->sym_cop); 898 rte_security_attach_session(&priv->cop, 899 ips->security.ses); 900 901 ret = xform_func(pkts[i], sa, &priv->cop); 902 if (unlikely(ret)) { 903 free_pkts(&pkts[i], 1); 904 continue; 905 } 906 907 ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i]; 908 if (ips->security.ol_flags & 909 RTE_SECURITY_TX_OLOAD_NEED_MDATA) 910 rte_security_set_pkt_metadata( 911 ips->security.ctx, ips->security.ses, 912 pkts[i], NULL); 913 continue; 914 } 915 916 enqueue_cop(sa->cqp[ipsec_ctx->lcore_id], &priv->cop); 917 } 918 } 919 920 static inline int32_t 921 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx, 922 struct rte_mbuf *pkts[], uint16_t max_pkts) 923 { 924 int32_t nb_pkts, ret; 925 struct ipsec_mbuf_metadata *priv; 926 struct ipsec_sa *sa; 927 struct rte_mbuf *pkt; 928 929 nb_pkts = 0; 930 while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) { 931 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt]; 932 rte_prefetch0(pkt); 933 priv = get_priv(pkt); 934 sa = priv->sa; 935 ret = xform_func(pkt, sa, &priv->cop); 936 if (unlikely(ret)) { 937 free_pkts(&pkt, 1); 938 continue; 939 } 940 pkts[nb_pkts++] = pkt; 941 } 942 943 return nb_pkts; 944 } 945 946 static inline int 947 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx, 948 struct rte_mbuf *pkts[], uint16_t max_pkts) 949 { 950 int32_t nb_pkts = 0, ret = 0, i, j, nb_cops; 951 struct ipsec_mbuf_metadata *priv; 952 struct rte_crypto_op *cops[max_pkts]; 953 struct ipsec_sa *sa; 954 struct rte_mbuf *pkt; 955 956 for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) { 957 struct cdev_qp *cqp; 958 959 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++]; 960 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps) 961 ipsec_ctx->last_qp %= ipsec_ctx->nb_qps; 962 963 if (cqp->in_flight == 0) 964 continue; 965 966 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp, 967 cops, max_pkts - nb_pkts); 968 969 cqp->in_flight -= nb_cops; 970 971 for (j = 0; j < nb_cops; j++) { 972 pkt = cops[j]->sym->m_src; 973 rte_prefetch0(pkt); 974 975 priv = get_priv(pkt); 976 sa = priv->sa; 977 978 RTE_ASSERT(sa != NULL); 979 980 if (ipsec_get_action_type(sa) == 981 RTE_SECURITY_ACTION_TYPE_NONE) { 982 ret = xform_func(pkt, sa, cops[j]); 983 if (unlikely(ret)) { 984 free_pkts(&pkt, 1); 985 continue; 986 } 987 } else if (ipsec_get_action_type(sa) == 988 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) { 989 if (cops[j]->status) { 990 free_pkts(&pkt, 1); 991 continue; 992 } 993 } 994 pkts[nb_pkts++] = pkt; 995 } 996 } 997 998 /* return packets */ 999 return nb_pkts; 1000 } 1001 1002 uint16_t 1003 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 1004 uint16_t nb_pkts, uint16_t len) 1005 { 1006 void *sas[nb_pkts]; 1007 1008 inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts); 1009 1010 ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts); 1011 1012 return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len); 1013 } 1014 1015 uint16_t 1016 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 1017 uint16_t len) 1018 { 1019 return ipsec_dequeue(esp_inbound_post, ctx, pkts, len); 1020 } 1021 1022 uint16_t 1023 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 1024 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len) 1025 { 1026 void *sas[nb_pkts]; 1027 1028 outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts); 1029 1030 ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts); 1031 1032 return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len); 1033 } 1034 1035 uint16_t 1036 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], 1037 uint16_t len) 1038 { 1039 return ipsec_dequeue(esp_outbound_post, ctx, pkts, len); 1040 } 1041