examples/ipsec-secgw/ipsec.c

   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_log.h>
  10 #include <rte_crypto.h>
  11 #include <rte_security.h>
  12 #include <rte_cryptodev.h>
  13 #include <rte_ipsec.h>
  14 #include <rte_ethdev.h>
  15 #include <rte_mbuf.h>
  16 #include <rte_hash.h>
  17
  18 #include "ipsec.h"
  19 #include "esp.h"
  20
  21 static inline void
  22 set_ipsec_conf(struct ipsec_sa *sa, struct rte_security_ipsec_xform *ipsec)
  23 {
  24         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
  25                 struct rte_security_ipsec_tunnel_param *tunnel =
  26                                 &ipsec->tunnel;
  27                 if (IS_IP4_TUNNEL(sa->flags)) {
  28                         tunnel->type =
  29                                 RTE_SECURITY_IPSEC_TUNNEL_IPV4;
  30                         tunnel->ipv4.ttl = IPDEFTTL;
  31
  32                         memcpy((uint8_t *)&tunnel->ipv4.src_ip,
  33                                 (uint8_t *)&sa->src.ip.ip4, 4);
  34
  35                         memcpy((uint8_t *)&tunnel->ipv4.dst_ip,
  36                                 (uint8_t *)&sa->dst.ip.ip4, 4);
  37                 } else if (IS_IP6_TUNNEL(sa->flags)) {
  38                         tunnel->type =
  39                                 RTE_SECURITY_IPSEC_TUNNEL_IPV6;
  40                         tunnel->ipv6.hlimit = IPDEFTTL;
  41                         tunnel->ipv6.dscp = 0;
  42                         tunnel->ipv6.flabel = 0;
  43
  44                         memcpy((uint8_t *)&tunnel->ipv6.src_addr,
  45                                 (uint8_t *)&sa->src.ip.ip6.ip6_b, 16);
  46
  47                         memcpy((uint8_t *)&tunnel->ipv6.dst_addr,
  48                                 (uint8_t *)&sa->dst.ip.ip6.ip6_b, 16);
  49                 }
  50                 /* TODO support for Transport */
  51         }
  52         ipsec->replay_win_sz = app_sa_prm.window_size;
  53         ipsec->options.esn = app_sa_prm.enable_esn;
  54         ipsec->options.udp_encap = sa->udp_encap;
  55 }
  56
  57 int
  58 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa,
  59                 struct rte_ipsec_session *ips)
  60 {
  61         struct rte_cryptodev_info cdev_info;
  62         unsigned long cdev_id_qp = 0;
  63         int32_t ret = 0;
  64         struct cdev_key key = { 0 };
  65
  66         key.lcore_id = (uint8_t)rte_lcore_id();
  67
  68         key.cipher_algo = (uint8_t)sa->cipher_algo;
  69         key.auth_algo = (uint8_t)sa->auth_algo;
  70         key.aead_algo = (uint8_t)sa->aead_algo;
  71
  72         ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
  73                         (void **)&cdev_id_qp);
  74         if (ret < 0) {
  75                 RTE_LOG(ERR, IPSEC,
  76                                 "No cryptodev: core %u, cipher_algo %u, "
  77                                 "auth_algo %u, aead_algo %u\n",
  78                                 key.lcore_id,
  79                                 key.cipher_algo,
  80                                 key.auth_algo,
  81                                 key.aead_algo);
  82                 return -1;
  83         }
  84
  85         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
  86                         "%u qp %u\n", sa->spi,
  87                         ipsec_ctx->tbl[cdev_id_qp].id,
  88                         ipsec_ctx->tbl[cdev_id_qp].qp);
  89
  90         if (ips->type != RTE_SECURITY_ACTION_TYPE_NONE &&
  91                 ips->type != RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) {
  92                 struct rte_security_session_conf sess_conf = {
  93                         .action_type = ips->type,
  94                         .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
  95                         {.ipsec = {
  96                                 .spi = sa->spi,
  97                                 .salt = sa->salt,
  98                                 .options = { 0 },
  99                                 .replay_win_sz = 0,
 100                                 .direction = sa->direction,
 101                                 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 102                                 .mode = (IS_TUNNEL(sa->flags)) ?
 103                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 104                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 105                         } },
 106                         .crypto_xform = sa->xforms,
 107                         .userdata = NULL,
 108
 109                 };
 110
 111                 if (ips->type == RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 112                         struct rte_security_ctx *ctx = (struct rte_security_ctx *)
 113                                                         rte_cryptodev_get_sec_ctx(
 114                                                         ipsec_ctx->tbl[cdev_id_qp].id);
 115
 116                         /* Set IPsec parameters in conf */
 117                         set_ipsec_conf(sa, &(sess_conf.ipsec));
 118
 119                         ips->security.ses = rte_security_session_create(ctx,
 120                                         &sess_conf, ipsec_ctx->session_pool,
 121                                         ipsec_ctx->session_priv_pool);
 122                         if (ips->security.ses == NULL) {
 123                                 RTE_LOG(ERR, IPSEC,
 124                                 "SEC Session init failed: err: %d\n", ret);
 125                                 return -1;
 126                         }
 127                 } else {
 128                         RTE_LOG(ERR, IPSEC, "Inline not supported\n");
 129                         return -1;
 130                 }
 131         } else {
 132                 if (ips->type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) {
 133                         struct rte_cryptodev_info info;
 134                         uint16_t cdev_id;
 135
 136                         cdev_id = ipsec_ctx->tbl[cdev_id_qp].id;
 137                         rte_cryptodev_info_get(cdev_id, &info);
 138                         if (!(info.feature_flags &
 139                                 RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO))
 140                                 return -ENOTSUP;
 141
 142                         ips->crypto.dev_id = cdev_id;
 143                 }
 144                 ips->crypto.ses = rte_cryptodev_sym_session_create(
 145                                 ipsec_ctx->session_pool);
 146                 rte_cryptodev_sym_session_init(ipsec_ctx->tbl[cdev_id_qp].id,
 147                                 ips->crypto.ses, sa->xforms,
 148                                 ipsec_ctx->session_priv_pool);
 149
 150                 rte_cryptodev_info_get(ipsec_ctx->tbl[cdev_id_qp].id,
 151                                 &cdev_info);
 152         }
 153
 154         sa->cdev_id_qp = cdev_id_qp;
 155
 156         return 0;
 157 }
 158
 159 int
 160 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa,
 161                 struct rte_ipsec_session *ips)
 162 {
 163         int32_t ret = 0;
 164         struct rte_security_ctx *sec_ctx;
 165         struct rte_security_session_conf sess_conf = {
 166                 .action_type = ips->type,
 167                 .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
 168                 {.ipsec = {
 169                         .spi = sa->spi,
 170                         .salt = sa->salt,
 171                         .options = { 0 },
 172                         .replay_win_sz = 0,
 173                         .direction = sa->direction,
 174                         .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 175                         .mode = (sa->flags == IP4_TUNNEL ||
 176                                         sa->flags == IP6_TUNNEL) ?
 177                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 178                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 179                 } },
 180                 .crypto_xform = sa->xforms,
 181                 .userdata = NULL,
 182         };
 183
 184         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n",
 185                 sa->spi, sa->portid);
 186
 187         if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
 188                 struct rte_flow_error err;
 189                 const struct rte_security_capability *sec_cap;
 190                 int ret = 0;
 191
 192                 sec_ctx = (struct rte_security_ctx *)
 193                                         rte_eth_dev_get_sec_ctx(
 194                                         sa->portid);
 195                 if (sec_ctx == NULL) {
 196                         RTE_LOG(ERR, IPSEC,
 197                                 " rte_eth_dev_get_sec_ctx failed\n");
 198                         return -1;
 199                 }
 200
 201                 ips->security.ses = rte_security_session_create(sec_ctx,
 202                                 &sess_conf, skt_ctx->session_pool,
 203                                 skt_ctx->session_priv_pool);
 204                 if (ips->security.ses == NULL) {
 205                         RTE_LOG(ERR, IPSEC,
 206                                 "SEC Session init failed: err: %d\n", ret);
 207                         return -1;
 208                 }
 209
 210                 sec_cap = rte_security_capabilities_get(sec_ctx);
 211
 212                 /* iterate until ESP tunnel*/
 213                 while (sec_cap->action != RTE_SECURITY_ACTION_TYPE_NONE) {
 214                         if (sec_cap->action == ips->type &&
 215                             sec_cap->protocol ==
 216                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 217                             sec_cap->ipsec.mode ==
 218                                 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL &&
 219                             sec_cap->ipsec.direction == sa->direction)
 220                                 break;
 221                         sec_cap++;
 222                 }
 223
 224                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 225                         RTE_LOG(ERR, IPSEC,
 226                                 "No suitable security capability found\n");
 227                         return -1;
 228                 }
 229
 230                 ips->security.ol_flags = sec_cap->ol_flags;
 231                 ips->security.ctx = sec_ctx;
 232                 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 233
 234                 if (IS_IP6(sa->flags)) {
 235                         sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 236                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 237                         sa->pattern[1].spec = &sa->ipv6_spec;
 238
 239                         memcpy(sa->ipv6_spec.hdr.dst_addr,
 240                                 sa->dst.ip.ip6.ip6_b, 16);
 241                         memcpy(sa->ipv6_spec.hdr.src_addr,
 242                                sa->src.ip.ip6.ip6_b, 16);
 243                 } else if (IS_IP4(sa->flags)) {
 244                         sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 245                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 246                         sa->pattern[1].spec = &sa->ipv4_spec;
 247
 248                         sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 249                         sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 250                 }
 251
 252                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 253                 sa->pattern[2].spec = &sa->esp_spec;
 254                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 255                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 256
 257                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 258
 259                 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
 260                 sa->action[0].conf = ips->security.ses;
 261
 262                 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 263
 264                 sa->attr.egress = (sa->direction ==
 265                                 RTE_SECURITY_IPSEC_SA_DIR_EGRESS);
 266                 sa->attr.ingress = (sa->direction ==
 267                                 RTE_SECURITY_IPSEC_SA_DIR_INGRESS);
 268                 if (sa->attr.ingress) {
 269                         uint8_t rss_key[40];
 270                         struct rte_eth_rss_conf rss_conf = {
 271                                 .rss_key = rss_key,
 272                                 .rss_key_len = 40,
 273                         };
 274                         struct rte_eth_dev_info dev_info;
 275                         uint16_t queue[RTE_MAX_QUEUES_PER_PORT];
 276                         struct rte_flow_action_rss action_rss;
 277                         unsigned int i;
 278                         unsigned int j;
 279
 280                         /* Don't create flow if default flow is created */
 281                         if (flow_info_tbl[sa->portid].rx_def_flow)
 282                                 return 0;
 283
 284                         ret = rte_eth_dev_info_get(sa->portid, &dev_info);
 285                         if (ret != 0) {
 286                                 RTE_LOG(ERR, IPSEC,
 287                                         "Error during getting device (port %u) info: %s\n",
 288                                         sa->portid, strerror(-ret));
 289                                 return ret;
 290                         }
 291
 292                         sa->action[2].type = RTE_FLOW_ACTION_TYPE_END;
 293                         /* Try RSS. */
 294                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS;
 295                         sa->action[1].conf = &action_rss;
 296                         ret = rte_eth_dev_rss_hash_conf_get(sa->portid,
 297                                         &rss_conf);
 298                         if (ret != 0) {
 299                                 RTE_LOG(ERR, IPSEC,
 300                                         "rte_eth_dev_rss_hash_conf_get:ret=%d\n",
 301                                         ret);
 302                                 return -1;
 303                         }
 304                         for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i)
 305                                 queue[j++] = i;
 306
 307                         action_rss = (struct rte_flow_action_rss){
 308                                         .types = rss_conf.rss_hf,
 309                                         .key_len = rss_conf.rss_key_len,
 310                                         .queue_num = j,
 311                                         .key = rss_key,
 312                                         .queue = queue,
 313                         };
 314                         ret = rte_flow_validate(sa->portid, &sa->attr,
 315                                                 sa->pattern, sa->action,
 316                                                 &err);
 317                         if (!ret)
 318                                 goto flow_create;
 319                         /* Try Queue. */
 320                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 321                         sa->action[1].conf =
 322                                 &(struct rte_flow_action_queue){
 323                                 .index = 0,
 324                         };
 325                         ret = rte_flow_validate(sa->portid, &sa->attr,
 326                                                 sa->pattern, sa->action,
 327                                                 &err);
 328                         /* Try End. */
 329                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 330                         sa->action[1].conf = NULL;
 331                         ret = rte_flow_validate(sa->portid, &sa->attr,
 332                                                 sa->pattern, sa->action,
 333                                                 &err);
 334                         if (ret)
 335                                 goto flow_create_failure;
 336                 } else if (sa->attr.egress &&
 337                                 (ips->security.ol_flags &
 338                                         RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) {
 339                         sa->action[1].type =
 340                                         RTE_FLOW_ACTION_TYPE_PASSTHRU;
 341                         sa->action[2].type =
 342                                         RTE_FLOW_ACTION_TYPE_END;
 343                 }
 344 flow_create:
 345                 sa->flow = rte_flow_create(sa->portid,
 346                                 &sa->attr, sa->pattern, sa->action, &err);
 347                 if (sa->flow == NULL) {
 348 flow_create_failure:
 349                         RTE_LOG(ERR, IPSEC,
 350                                 "Failed to create ipsec flow msg: %s\n",
 351                                 err.message);
 352                         return -1;
 353                 }
 354         } else if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
 355                 const struct rte_security_capability *sec_cap;
 356
 357                 sec_ctx = (struct rte_security_ctx *)
 358                                 rte_eth_dev_get_sec_ctx(sa->portid);
 359
 360                 if (sec_ctx == NULL) {
 361                         RTE_LOG(ERR, IPSEC,
 362                                 "Ethernet device doesn't have security features registered\n");
 363                         return -1;
 364                 }
 365
 366                 /* Set IPsec parameters in conf */
 367                 set_ipsec_conf(sa, &(sess_conf.ipsec));
 368
 369                 /* Save SA as userdata for the security session. When
 370                  * the packet is received, this userdata will be
 371                  * retrieved using the metadata from the packet.
 372                  *
 373                  * The PMD is expected to set similar metadata for other
 374                  * operations, like rte_eth_event, which are tied to
 375                  * security session. In such cases, the userdata could
 376                  * be obtained to uniquely identify the security
 377                  * parameters denoted.
 378                  */
 379
 380                 sess_conf.userdata = (void *) sa;
 381
 382                 ips->security.ses = rte_security_session_create(sec_ctx,
 383                                         &sess_conf, skt_ctx->session_pool,
 384                                         skt_ctx->session_priv_pool);
 385                 if (ips->security.ses == NULL) {
 386                         RTE_LOG(ERR, IPSEC,
 387                                 "SEC Session init failed: err: %d\n", ret);
 388                         return -1;
 389                 }
 390
 391                 sec_cap = rte_security_capabilities_get(sec_ctx);
 392                 if (sec_cap == NULL) {
 393                         RTE_LOG(ERR, IPSEC,
 394                                 "No capabilities registered\n");
 395                         return -1;
 396                 }
 397
 398                 /* iterate until ESP tunnel*/
 399                 while (sec_cap->action !=
 400                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 401                         if (sec_cap->action == ips->type &&
 402                             sec_cap->protocol ==
 403                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 404                             sec_cap->ipsec.mode ==
 405                                 sess_conf.ipsec.mode &&
 406                             sec_cap->ipsec.direction == sa->direction)
 407                                 break;
 408                         sec_cap++;
 409                 }
 410
 411                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 412                         RTE_LOG(ERR, IPSEC,
 413                                 "No suitable security capability found\n");
 414                         return -1;
 415                 }
 416
 417                 ips->security.ol_flags = sec_cap->ol_flags;
 418                 ips->security.ctx = sec_ctx;
 419         }
 420
 421         return 0;
 422 }
 423
 424 int
 425 create_ipsec_esp_flow(struct ipsec_sa *sa)
 426 {
 427         int ret = 0;
 428         struct rte_flow_error err;
 429         if (sa->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
 430                 RTE_LOG(ERR, IPSEC,
 431                         "No Flow director rule for Egress traffic\n");
 432                 return -1;
 433         }
 434         if (sa->flags == TRANSPORT) {
 435                 RTE_LOG(ERR, IPSEC,
 436                         "No Flow director rule for transport mode\n");
 437                 return -1;
 438         }
 439         sa->action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 440         sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 441         sa->action[0].conf = &(struct rte_flow_action_queue) {
 442                                 .index = sa->fdir_qid,
 443         };
 444         sa->attr.egress = 0;
 445         sa->attr.ingress = 1;
 446         if (IS_IP6(sa->flags)) {
 447                 sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 448                 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 449                 sa->pattern[1].spec = &sa->ipv6_spec;
 450                 memcpy(sa->ipv6_spec.hdr.dst_addr,
 451                         sa->dst.ip.ip6.ip6_b, sizeof(sa->dst.ip.ip6.ip6_b));
 452                 memcpy(sa->ipv6_spec.hdr.src_addr,
 453                         sa->src.ip.ip6.ip6_b, sizeof(sa->src.ip.ip6.ip6_b));
 454                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 455                 sa->pattern[2].spec = &sa->esp_spec;
 456                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 457                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 458                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 459         } else if (IS_IP4(sa->flags)) {
 460                 sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 461                 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 462                 sa->pattern[1].spec = &sa->ipv4_spec;
 463                 sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 464                 sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 465                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 466                 sa->pattern[2].spec = &sa->esp_spec;
 467                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 468                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 469                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 470         }
 471         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 472
 473         ret = rte_flow_validate(sa->portid, &sa->attr, sa->pattern, sa->action,
 474                                 &err);
 475         if (ret < 0) {
 476                 RTE_LOG(ERR, IPSEC, "Flow validation failed %s\n", err.message);
 477                 return ret;
 478         }
 479
 480         sa->flow = rte_flow_create(sa->portid, &sa->attr, sa->pattern,
 481                                         sa->action, &err);
 482         if (!sa->flow) {
 483                 RTE_LOG(ERR, IPSEC, "Flow creation failed %s\n", err.message);
 484                 return -1;
 485         }
 486
 487         return 0;
 488 }
 489
 490 /*
 491  * queue crypto-ops into PMD queue.
 492  */
 493 void
 494 enqueue_cop_burst(struct cdev_qp *cqp)
 495 {
 496         uint32_t i, len, ret;
 497
 498         len = cqp->len;
 499         ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len);
 500         if (ret < len) {
 501                 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 502                         " enqueued %u crypto ops out of %u\n",
 503                         cqp->id, cqp->qp, ret, len);
 504                         /* drop packets that we fail to enqueue */
 505                         for (i = ret; i < len; i++)
 506                                 free_pkts(&cqp->buf[i]->sym->m_src, 1);
 507         }
 508         cqp->in_flight += ret;
 509         cqp->len = 0;
 510 }
 511
 512 static inline void
 513 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 514 {
 515         cqp->buf[cqp->len++] = cop;
 516
 517         if (cqp->len == MAX_PKT_BURST)
 518                 enqueue_cop_burst(cqp);
 519 }
 520
 521 static inline void
 522 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 523                 struct rte_mbuf *pkts[], void *sas[],
 524                 uint16_t nb_pkts)
 525 {
 526         int32_t ret = 0, i;
 527         struct ipsec_mbuf_metadata *priv;
 528         struct rte_crypto_sym_op *sym_cop;
 529         struct ipsec_sa *sa;
 530         struct rte_ipsec_session *ips;
 531
 532         for (i = 0; i < nb_pkts; i++) {
 533                 if (unlikely(sas[i] == NULL)) {
 534                         free_pkts(&pkts[i], 1);
 535                         continue;
 536                 }
 537
 538                 rte_prefetch0(sas[i]);
 539                 rte_prefetch0(pkts[i]);
 540
 541                 priv = get_priv(pkts[i]);
 542                 sa = ipsec_mask_saptr(sas[i]);
 543                 priv->sa = sa;
 544                 ips = ipsec_get_primary_session(sa);
 545
 546                 switch (ips->type) {
 547                 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
 548                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 549                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 550
 551                         rte_prefetch0(&priv->sym_cop);
 552
 553                         if ((unlikely(ips->security.ses == NULL)) &&
 554                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 555                                 free_pkts(&pkts[i], 1);
 556                                 continue;
 557                         }
 558
 559                         if (unlikely((pkts[i]->packet_type &
 560                                         (RTE_PTYPE_TUNNEL_MASK |
 561                                         RTE_PTYPE_L4_MASK)) ==
 562                                         MBUF_PTYPE_TUNNEL_ESP_IN_UDP &&
 563                                         sa->udp_encap != 1)) {
 564                                 free_pkts(&pkts[i], 1);
 565                                 continue;
 566                         }
 567
 568                         sym_cop = get_sym_cop(&priv->cop);
 569                         sym_cop->m_src = pkts[i];
 570
 571                         rte_security_attach_session(&priv->cop,
 572                                 ips->security.ses);
 573                         break;
 574
 575                 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO:
 576                         RTE_LOG(ERR, IPSEC, "CPU crypto is not supported by the"
 577                                         " legacy mode.");
 578                         free_pkts(&pkts[i], 1);
 579                         continue;
 580
 581                 case RTE_SECURITY_ACTION_TYPE_NONE:
 582
 583                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 584                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 585
 586                         rte_prefetch0(&priv->sym_cop);
 587
 588                         if ((unlikely(ips->crypto.ses == NULL)) &&
 589                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 590                                 free_pkts(&pkts[i], 1);
 591                                 continue;
 592                         }
 593
 594                         rte_crypto_op_attach_sym_session(&priv->cop,
 595                                         ips->crypto.ses);
 596
 597                         ret = xform_func(pkts[i], sa, &priv->cop);
 598                         if (unlikely(ret)) {
 599                                 free_pkts(&pkts[i], 1);
 600                                 continue;
 601                         }
 602                         break;
 603                 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
 604                         RTE_ASSERT(ips->security.ses != NULL);
 605                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 606                         if (ips->security.ol_flags &
 607                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 608                                 rte_security_set_pkt_metadata(
 609                                         ips->security.ctx, ips->security.ses,
 610                                         pkts[i], NULL);
 611                         continue;
 612                 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
 613                         RTE_ASSERT(ips->security.ses != NULL);
 614                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 615                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 616
 617                         rte_prefetch0(&priv->sym_cop);
 618                         rte_security_attach_session(&priv->cop,
 619                                         ips->security.ses);
 620
 621                         ret = xform_func(pkts[i], sa, &priv->cop);
 622                         if (unlikely(ret)) {
 623                                 free_pkts(&pkts[i], 1);
 624                                 continue;
 625                         }
 626
 627                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 628                         if (ips->security.ol_flags &
 629                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 630                                 rte_security_set_pkt_metadata(
 631                                         ips->security.ctx, ips->security.ses,
 632                                         pkts[i], NULL);
 633                         continue;
 634                 }
 635
 636                 RTE_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
 637                 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
 638         }
 639 }
 640
 641 static inline int32_t
 642 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 643               struct rte_mbuf *pkts[], uint16_t max_pkts)
 644 {
 645         int32_t nb_pkts, ret;
 646         struct ipsec_mbuf_metadata *priv;
 647         struct ipsec_sa *sa;
 648         struct rte_mbuf *pkt;
 649
 650         nb_pkts = 0;
 651         while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) {
 652                 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt];
 653                 rte_prefetch0(pkt);
 654                 priv = get_priv(pkt);
 655                 sa = priv->sa;
 656                 ret = xform_func(pkt, sa, &priv->cop);
 657                 if (unlikely(ret)) {
 658                         free_pkts(&pkt, 1);
 659                         continue;
 660                 }
 661                 pkts[nb_pkts++] = pkt;
 662         }
 663
 664         return nb_pkts;
 665 }
 666
 667 static inline int
 668 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 669               struct rte_mbuf *pkts[], uint16_t max_pkts)
 670 {
 671         int32_t nb_pkts = 0, ret = 0, i, j, nb_cops;
 672         struct ipsec_mbuf_metadata *priv;
 673         struct rte_crypto_op *cops[max_pkts];
 674         struct ipsec_sa *sa;
 675         struct rte_mbuf *pkt;
 676
 677         for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
 678                 struct cdev_qp *cqp;
 679
 680                 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
 681                 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
 682                         ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
 683
 684                 if (cqp->in_flight == 0)
 685                         continue;
 686
 687                 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
 688                                 cops, max_pkts - nb_pkts);
 689
 690                 cqp->in_flight -= nb_cops;
 691
 692                 for (j = 0; j < nb_cops; j++) {
 693                         pkt = cops[j]->sym->m_src;
 694                         rte_prefetch0(pkt);
 695
 696                         priv = get_priv(pkt);
 697                         sa = priv->sa;
 698
 699                         RTE_ASSERT(sa != NULL);
 700
 701                         if (ipsec_get_action_type(sa) ==
 702                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 703                                 ret = xform_func(pkt, sa, cops[j]);
 704                                 if (unlikely(ret)) {
 705                                         free_pkts(&pkt, 1);
 706                                         continue;
 707                                 }
 708                         } else if (ipsec_get_action_type(sa) ==
 709                                 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 710                                 if (cops[j]->status) {
 711                                         free_pkts(&pkt, 1);
 712                                         continue;
 713                                 }
 714                         }
 715                         pkts[nb_pkts++] = pkt;
 716                 }
 717         }
 718
 719         /* return packets */
 720         return nb_pkts;
 721 }
 722
 723 uint16_t
 724 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 725                 uint16_t nb_pkts, uint16_t len)
 726 {
 727         void *sas[nb_pkts];
 728
 729         inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
 730
 731         ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts);
 732
 733         return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len);
 734 }
 735
 736 uint16_t
 737 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 738                 uint16_t len)
 739 {
 740         return ipsec_dequeue(esp_inbound_post, ctx, pkts, len);
 741 }
 742
 743 uint16_t
 744 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 745                 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
 746 {
 747         void *sas[nb_pkts];
 748
 749         outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
 750
 751         ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts);
 752
 753         return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len);
 754 }
 755
 756 uint16_t
 757 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 758                 uint16_t len)
 759 {
 760         return ipsec_dequeue(esp_outbound_post, ctx, pkts, len);
 761 }