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->esn_soft_limit = IPSEC_OFFLOAD_ESN_SOFTLIMIT;
  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 }
  57
  58 int
  59 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa,
  60                 struct rte_ipsec_session *ips)
  61 {
  62         struct rte_cryptodev_info cdev_info;
  63         unsigned long cdev_id_qp = 0;
  64         int32_t ret = 0;
  65         struct cdev_key key = { 0 };
  66
  67         key.lcore_id = (uint8_t)rte_lcore_id();
  68
  69         key.cipher_algo = (uint8_t)sa->cipher_algo;
  70         key.auth_algo = (uint8_t)sa->auth_algo;
  71         key.aead_algo = (uint8_t)sa->aead_algo;
  72
  73         ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
  74                         (void **)&cdev_id_qp);
  75         if (ret < 0) {
  76                 RTE_LOG(ERR, IPSEC,
  77                                 "No cryptodev: core %u, cipher_algo %u, "
  78                                 "auth_algo %u, aead_algo %u\n",
  79                                 key.lcore_id,
  80                                 key.cipher_algo,
  81                                 key.auth_algo,
  82                                 key.aead_algo);
  83                 return -1;
  84         }
  85
  86         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
  87                         "%u qp %u\n", sa->spi,
  88                         ipsec_ctx->tbl[cdev_id_qp].id,
  89                         ipsec_ctx->tbl[cdev_id_qp].qp);
  90
  91         if (ips->type != RTE_SECURITY_ACTION_TYPE_NONE &&
  92                 ips->type != RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) {
  93                 struct rte_security_session_conf sess_conf = {
  94                         .action_type = ips->type,
  95                         .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
  96                         {.ipsec = {
  97                                 .spi = sa->spi,
  98                                 .salt = sa->salt,
  99                                 .options = { 0 },
 100                                 .replay_win_sz = 0,
 101                                 .direction = sa->direction,
 102                                 .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 103                                 .mode = (IS_TUNNEL(sa->flags)) ?
 104                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 105                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 106                         } },
 107                         .crypto_xform = sa->xforms,
 108                         .userdata = NULL,
 109
 110                 };
 111
 112                 if (ips->type == RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 113                         struct rte_security_ctx *ctx = (struct rte_security_ctx *)
 114                                                         rte_cryptodev_get_sec_ctx(
 115                                                         ipsec_ctx->tbl[cdev_id_qp].id);
 116
 117                         /* Set IPsec parameters in conf */
 118                         set_ipsec_conf(sa, &(sess_conf.ipsec));
 119
 120                         ips->security.ses = rte_security_session_create(ctx,
 121                                         &sess_conf, ipsec_ctx->session_pool,
 122                                         ipsec_ctx->session_priv_pool);
 123                         if (ips->security.ses == NULL) {
 124                                 RTE_LOG(ERR, IPSEC,
 125                                 "SEC Session init failed: err: %d\n", ret);
 126                                 return -1;
 127                         }
 128                 } else {
 129                         RTE_LOG(ERR, IPSEC, "Inline not supported\n");
 130                         return -1;
 131                 }
 132         } else {
 133                 if (ips->type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) {
 134                         struct rte_cryptodev_info info;
 135                         uint16_t cdev_id;
 136
 137                         cdev_id = ipsec_ctx->tbl[cdev_id_qp].id;
 138                         rte_cryptodev_info_get(cdev_id, &info);
 139                         if (!(info.feature_flags &
 140                                 RTE_CRYPTODEV_FF_SYM_CPU_CRYPTO))
 141                                 return -ENOTSUP;
 142
 143                         ips->crypto.dev_id = cdev_id;
 144                 }
 145                 ips->crypto.ses = rte_cryptodev_sym_session_create(
 146                                 ipsec_ctx->session_pool);
 147                 rte_cryptodev_sym_session_init(ipsec_ctx->tbl[cdev_id_qp].id,
 148                                 ips->crypto.ses, sa->xforms,
 149                                 ipsec_ctx->session_priv_pool);
 150
 151                 rte_cryptodev_info_get(ipsec_ctx->tbl[cdev_id_qp].id,
 152                                 &cdev_info);
 153         }
 154
 155         sa->cdev_id_qp = cdev_id_qp;
 156
 157         return 0;
 158 }
 159
 160 int
 161 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa,
 162                 struct rte_ipsec_session *ips)
 163 {
 164         int32_t ret = 0;
 165         struct rte_security_ctx *sec_ctx;
 166         struct rte_security_session_conf sess_conf = {
 167                 .action_type = ips->type,
 168                 .protocol = RTE_SECURITY_PROTOCOL_IPSEC,
 169                 {.ipsec = {
 170                         .spi = sa->spi,
 171                         .salt = sa->salt,
 172                         .options = { 0 },
 173                         .replay_win_sz = 0,
 174                         .direction = sa->direction,
 175                         .proto = RTE_SECURITY_IPSEC_SA_PROTO_ESP,
 176                         .mode = (sa->flags == IP4_TUNNEL ||
 177                                         sa->flags == IP6_TUNNEL) ?
 178                                         RTE_SECURITY_IPSEC_SA_MODE_TUNNEL :
 179                                         RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT,
 180                 } },
 181                 .crypto_xform = sa->xforms,
 182                 .userdata = NULL,
 183         };
 184
 185         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n",
 186                 sa->spi, sa->portid);
 187
 188         if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
 189                 struct rte_flow_error err;
 190                 const struct rte_security_capability *sec_cap;
 191                 int ret = 0;
 192
 193                 sec_ctx = (struct rte_security_ctx *)
 194                                         rte_eth_dev_get_sec_ctx(
 195                                         sa->portid);
 196                 if (sec_ctx == NULL) {
 197                         RTE_LOG(ERR, IPSEC,
 198                                 " rte_eth_dev_get_sec_ctx failed\n");
 199                         return -1;
 200                 }
 201
 202                 ips->security.ses = rte_security_session_create(sec_ctx,
 203                                 &sess_conf, skt_ctx->session_pool,
 204                                 skt_ctx->session_priv_pool);
 205                 if (ips->security.ses == NULL) {
 206                         RTE_LOG(ERR, IPSEC,
 207                                 "SEC Session init failed: err: %d\n", ret);
 208                         return -1;
 209                 }
 210
 211                 sec_cap = rte_security_capabilities_get(sec_ctx);
 212
 213                 /* iterate until ESP tunnel*/
 214                 while (sec_cap->action != RTE_SECURITY_ACTION_TYPE_NONE) {
 215                         if (sec_cap->action == ips->type &&
 216                             sec_cap->protocol ==
 217                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 218                             sec_cap->ipsec.mode ==
 219                                 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL &&
 220                             sec_cap->ipsec.direction == sa->direction)
 221                                 break;
 222                         sec_cap++;
 223                 }
 224
 225                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 226                         RTE_LOG(ERR, IPSEC,
 227                                 "No suitable security capability found\n");
 228                         return -1;
 229                 }
 230
 231                 ips->security.ol_flags = sec_cap->ol_flags;
 232                 ips->security.ctx = sec_ctx;
 233                 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 234
 235                 if (IS_IP6(sa->flags)) {
 236                         sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 237                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 238                         sa->pattern[1].spec = &sa->ipv6_spec;
 239
 240                         memcpy(sa->ipv6_spec.hdr.dst_addr,
 241                                 sa->dst.ip.ip6.ip6_b, 16);
 242                         memcpy(sa->ipv6_spec.hdr.src_addr,
 243                                sa->src.ip.ip6.ip6_b, 16);
 244                 } else if (IS_IP4(sa->flags)) {
 245                         sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 246                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 247                         sa->pattern[1].spec = &sa->ipv4_spec;
 248
 249                         sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 250                         sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 251                 }
 252
 253                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 254                 sa->pattern[2].spec = &sa->esp_spec;
 255                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 256                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 257
 258                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 259
 260                 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
 261                 sa->action[0].conf = ips->security.ses;
 262
 263                 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 264
 265                 sa->attr.egress = (sa->direction ==
 266                                 RTE_SECURITY_IPSEC_SA_DIR_EGRESS);
 267                 sa->attr.ingress = (sa->direction ==
 268                                 RTE_SECURITY_IPSEC_SA_DIR_INGRESS);
 269                 if (sa->attr.ingress) {
 270                         uint8_t rss_key[40];
 271                         struct rte_eth_rss_conf rss_conf = {
 272                                 .rss_key = rss_key,
 273                                 .rss_key_len = 40,
 274                         };
 275                         struct rte_eth_dev_info dev_info;
 276                         uint16_t queue[RTE_MAX_QUEUES_PER_PORT];
 277                         struct rte_flow_action_rss action_rss;
 278                         unsigned int i;
 279                         unsigned int j;
 280
 281                         /* Don't create flow if default flow is created */
 282                         if (flow_info_tbl[sa->portid].rx_def_flow)
 283                                 return 0;
 284
 285                         ret = rte_eth_dev_info_get(sa->portid, &dev_info);
 286                         if (ret != 0) {
 287                                 RTE_LOG(ERR, IPSEC,
 288                                         "Error during getting device (port %u) info: %s\n",
 289                                         sa->portid, strerror(-ret));
 290                                 return ret;
 291                         }
 292
 293                         sa->action[2].type = RTE_FLOW_ACTION_TYPE_END;
 294                         /* Try RSS. */
 295                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS;
 296                         sa->action[1].conf = &action_rss;
 297                         ret = rte_eth_dev_rss_hash_conf_get(sa->portid,
 298                                         &rss_conf);
 299                         if (ret != 0) {
 300                                 RTE_LOG(ERR, IPSEC,
 301                                         "rte_eth_dev_rss_hash_conf_get:ret=%d\n",
 302                                         ret);
 303                                 return -1;
 304                         }
 305                         for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i)
 306                                 queue[j++] = i;
 307
 308                         action_rss = (struct rte_flow_action_rss){
 309                                         .types = rss_conf.rss_hf,
 310                                         .key_len = rss_conf.rss_key_len,
 311                                         .queue_num = j,
 312                                         .key = rss_key,
 313                                         .queue = queue,
 314                         };
 315                         ret = rte_flow_validate(sa->portid, &sa->attr,
 316                                                 sa->pattern, sa->action,
 317                                                 &err);
 318                         if (!ret)
 319                                 goto flow_create;
 320                         /* Try Queue. */
 321                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 322                         sa->action[1].conf =
 323                                 &(struct rte_flow_action_queue){
 324                                 .index = 0,
 325                         };
 326                         ret = rte_flow_validate(sa->portid, &sa->attr,
 327                                                 sa->pattern, sa->action,
 328                                                 &err);
 329                         /* Try End. */
 330                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 331                         sa->action[1].conf = NULL;
 332                         ret = rte_flow_validate(sa->portid, &sa->attr,
 333                                                 sa->pattern, sa->action,
 334                                                 &err);
 335                         if (ret)
 336                                 goto flow_create_failure;
 337                 } else if (sa->attr.egress &&
 338                                 (ips->security.ol_flags &
 339                                         RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) {
 340                         sa->action[1].type =
 341                                         RTE_FLOW_ACTION_TYPE_PASSTHRU;
 342                         sa->action[2].type =
 343                                         RTE_FLOW_ACTION_TYPE_END;
 344                 }
 345 flow_create:
 346                 sa->flow = rte_flow_create(sa->portid,
 347                                 &sa->attr, sa->pattern, sa->action, &err);
 348                 if (sa->flow == NULL) {
 349 flow_create_failure:
 350                         RTE_LOG(ERR, IPSEC,
 351                                 "Failed to create ipsec flow msg: %s\n",
 352                                 err.message);
 353                         return -1;
 354                 }
 355         } else if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
 356                 const struct rte_security_capability *sec_cap;
 357
 358                 sec_ctx = (struct rte_security_ctx *)
 359                                 rte_eth_dev_get_sec_ctx(sa->portid);
 360
 361                 if (sec_ctx == NULL) {
 362                         RTE_LOG(ERR, IPSEC,
 363                                 "Ethernet device doesn't have security features registered\n");
 364                         return -1;
 365                 }
 366
 367                 /* Set IPsec parameters in conf */
 368                 set_ipsec_conf(sa, &(sess_conf.ipsec));
 369
 370                 /* Save SA as userdata for the security session. When
 371                  * the packet is received, this userdata will be
 372                  * retrieved using the metadata from the packet.
 373                  *
 374                  * The PMD is expected to set similar metadata for other
 375                  * operations, like rte_eth_event, which are tied to
 376                  * security session. In such cases, the userdata could
 377                  * be obtained to uniquely identify the security
 378                  * parameters denoted.
 379                  */
 380
 381                 sess_conf.userdata = (void *) sa;
 382
 383                 ips->security.ses = rte_security_session_create(sec_ctx,
 384                                         &sess_conf, skt_ctx->session_pool,
 385                                         skt_ctx->session_priv_pool);
 386                 if (ips->security.ses == NULL) {
 387                         RTE_LOG(ERR, IPSEC,
 388                                 "SEC Session init failed: err: %d\n", ret);
 389                         return -1;
 390                 }
 391
 392                 sec_cap = rte_security_capabilities_get(sec_ctx);
 393                 if (sec_cap == NULL) {
 394                         RTE_LOG(ERR, IPSEC,
 395                                 "No capabilities registered\n");
 396                         return -1;
 397                 }
 398
 399                 /* iterate until ESP tunnel*/
 400                 while (sec_cap->action !=
 401                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 402                         if (sec_cap->action == ips->type &&
 403                             sec_cap->protocol ==
 404                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 405                             sec_cap->ipsec.mode ==
 406                                 sess_conf.ipsec.mode &&
 407                             sec_cap->ipsec.direction == sa->direction)
 408                                 break;
 409                         sec_cap++;
 410                 }
 411
 412                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 413                         RTE_LOG(ERR, IPSEC,
 414                                 "No suitable security capability found\n");
 415                         return -1;
 416                 }
 417
 418                 ips->security.ol_flags = sec_cap->ol_flags;
 419                 ips->security.ctx = sec_ctx;
 420         }
 421
 422         return 0;
 423 }
 424
 425 int
 426 create_ipsec_esp_flow(struct ipsec_sa *sa)
 427 {
 428         int ret = 0;
 429         struct rte_flow_error err;
 430         if (sa->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
 431                 RTE_LOG(ERR, IPSEC,
 432                         "No Flow director rule for Egress traffic\n");
 433                 return -1;
 434         }
 435         if (sa->flags == TRANSPORT) {
 436                 RTE_LOG(ERR, IPSEC,
 437                         "No Flow director rule for transport mode\n");
 438                 return -1;
 439         }
 440         sa->action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 441         sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 442         sa->action[0].conf = &(struct rte_flow_action_queue) {
 443                                 .index = sa->fdir_qid,
 444         };
 445         sa->attr.egress = 0;
 446         sa->attr.ingress = 1;
 447         if (IS_IP6(sa->flags)) {
 448                 sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 449                 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 450                 sa->pattern[1].spec = &sa->ipv6_spec;
 451                 memcpy(sa->ipv6_spec.hdr.dst_addr,
 452                         sa->dst.ip.ip6.ip6_b, sizeof(sa->dst.ip.ip6.ip6_b));
 453                 memcpy(sa->ipv6_spec.hdr.src_addr,
 454                         sa->src.ip.ip6.ip6_b, sizeof(sa->src.ip.ip6.ip6_b));
 455                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 456                 sa->pattern[2].spec = &sa->esp_spec;
 457                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 458                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 459                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 460         } else if (IS_IP4(sa->flags)) {
 461                 sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 462                 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 463                 sa->pattern[1].spec = &sa->ipv4_spec;
 464                 sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 465                 sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 466                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 467                 sa->pattern[2].spec = &sa->esp_spec;
 468                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 469                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 470                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 471         }
 472         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 473
 474         ret = rte_flow_validate(sa->portid, &sa->attr, sa->pattern, sa->action,
 475                                 &err);
 476         if (ret < 0) {
 477                 RTE_LOG(ERR, IPSEC, "Flow validation failed %s\n", err.message);
 478                 return ret;
 479         }
 480
 481         sa->flow = rte_flow_create(sa->portid, &sa->attr, sa->pattern,
 482                                         sa->action, &err);
 483         if (!sa->flow) {
 484                 RTE_LOG(ERR, IPSEC, "Flow creation failed %s\n", err.message);
 485                 return -1;
 486         }
 487
 488         return 0;
 489 }
 490
 491 /*
 492  * queue crypto-ops into PMD queue.
 493  */
 494 void
 495 enqueue_cop_burst(struct cdev_qp *cqp)
 496 {
 497         uint32_t i, len, ret;
 498
 499         len = cqp->len;
 500         ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len);
 501         if (ret < len) {
 502                 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 503                         " enqueued %u crypto ops out of %u\n",
 504                         cqp->id, cqp->qp, ret, len);
 505                         /* drop packets that we fail to enqueue */
 506                         for (i = ret; i < len; i++)
 507                                 free_pkts(&cqp->buf[i]->sym->m_src, 1);
 508         }
 509         cqp->in_flight += ret;
 510         cqp->len = 0;
 511 }
 512
 513 static inline void
 514 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 515 {
 516         cqp->buf[cqp->len++] = cop;
 517
 518         if (cqp->len == MAX_PKT_BURST)
 519                 enqueue_cop_burst(cqp);
 520 }
 521
 522 static inline void
 523 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 524                 struct rte_mbuf *pkts[], void *sas[],
 525                 uint16_t nb_pkts)
 526 {
 527         int32_t ret = 0, i;
 528         struct ipsec_mbuf_metadata *priv;
 529         struct rte_crypto_sym_op *sym_cop;
 530         struct ipsec_sa *sa;
 531         struct rte_ipsec_session *ips;
 532
 533         for (i = 0; i < nb_pkts; i++) {
 534                 if (unlikely(sas[i] == NULL)) {
 535                         free_pkts(&pkts[i], 1);
 536                         continue;
 537                 }
 538
 539                 rte_prefetch0(sas[i]);
 540                 rte_prefetch0(pkts[i]);
 541
 542                 priv = get_priv(pkts[i]);
 543                 sa = ipsec_mask_saptr(sas[i]);
 544                 priv->sa = sa;
 545                 ips = ipsec_get_primary_session(sa);
 546
 547                 switch (ips->type) {
 548                 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
 549                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 550                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 551
 552                         rte_prefetch0(&priv->sym_cop);
 553
 554                         if ((unlikely(ips->security.ses == NULL)) &&
 555                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 556                                 free_pkts(&pkts[i], 1);
 557                                 continue;
 558                         }
 559
 560                         if (unlikely((pkts[i]->packet_type &
 561                                         (RTE_PTYPE_TUNNEL_MASK |
 562                                         RTE_PTYPE_L4_MASK)) ==
 563                                         MBUF_PTYPE_TUNNEL_ESP_IN_UDP &&
 564                                         sa->udp_encap != 1)) {
 565                                 free_pkts(&pkts[i], 1);
 566                                 continue;
 567                         }
 568
 569                         sym_cop = get_sym_cop(&priv->cop);
 570                         sym_cop->m_src = pkts[i];
 571
 572                         rte_security_attach_session(&priv->cop,
 573                                 ips->security.ses);
 574                         break;
 575
 576                 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO:
 577                         RTE_LOG(ERR, IPSEC, "CPU crypto is not supported by the"
 578                                         " legacy mode.");
 579                         free_pkts(&pkts[i], 1);
 580                         continue;
 581
 582                 case RTE_SECURITY_ACTION_TYPE_NONE:
 583
 584                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 585                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 586
 587                         rte_prefetch0(&priv->sym_cop);
 588
 589                         if ((unlikely(ips->crypto.ses == NULL)) &&
 590                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 591                                 free_pkts(&pkts[i], 1);
 592                                 continue;
 593                         }
 594
 595                         rte_crypto_op_attach_sym_session(&priv->cop,
 596                                         ips->crypto.ses);
 597
 598                         ret = xform_func(pkts[i], sa, &priv->cop);
 599                         if (unlikely(ret)) {
 600                                 free_pkts(&pkts[i], 1);
 601                                 continue;
 602                         }
 603                         break;
 604                 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
 605                         RTE_ASSERT(ips->security.ses != NULL);
 606                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 607                         if (ips->security.ol_flags &
 608                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 609                                 rte_security_set_pkt_metadata(
 610                                         ips->security.ctx, ips->security.ses,
 611                                         pkts[i], NULL);
 612                         continue;
 613                 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
 614                         RTE_ASSERT(ips->security.ses != NULL);
 615                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 616                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 617
 618                         rte_prefetch0(&priv->sym_cop);
 619                         rte_security_attach_session(&priv->cop,
 620                                         ips->security.ses);
 621
 622                         ret = xform_func(pkts[i], sa, &priv->cop);
 623                         if (unlikely(ret)) {
 624                                 free_pkts(&pkts[i], 1);
 625                                 continue;
 626                         }
 627
 628                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 629                         if (ips->security.ol_flags &
 630                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 631                                 rte_security_set_pkt_metadata(
 632                                         ips->security.ctx, ips->security.ses,
 633                                         pkts[i], NULL);
 634                         continue;
 635                 }
 636
 637                 RTE_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
 638                 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
 639         }
 640 }
 641
 642 static inline int32_t
 643 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 644               struct rte_mbuf *pkts[], uint16_t max_pkts)
 645 {
 646         int32_t nb_pkts, ret;
 647         struct ipsec_mbuf_metadata *priv;
 648         struct ipsec_sa *sa;
 649         struct rte_mbuf *pkt;
 650
 651         nb_pkts = 0;
 652         while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) {
 653                 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt];
 654                 rte_prefetch0(pkt);
 655                 priv = get_priv(pkt);
 656                 sa = priv->sa;
 657                 ret = xform_func(pkt, sa, &priv->cop);
 658                 if (unlikely(ret)) {
 659                         free_pkts(&pkt, 1);
 660                         continue;
 661                 }
 662                 pkts[nb_pkts++] = pkt;
 663         }
 664
 665         return nb_pkts;
 666 }
 667
 668 static inline int
 669 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 670               struct rte_mbuf *pkts[], uint16_t max_pkts)
 671 {
 672         int32_t nb_pkts = 0, ret = 0, i, j, nb_cops;
 673         struct ipsec_mbuf_metadata *priv;
 674         struct rte_crypto_op *cops[max_pkts];
 675         struct ipsec_sa *sa;
 676         struct rte_mbuf *pkt;
 677
 678         for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
 679                 struct cdev_qp *cqp;
 680
 681                 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
 682                 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
 683                         ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
 684
 685                 if (cqp->in_flight == 0)
 686                         continue;
 687
 688                 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
 689                                 cops, max_pkts - nb_pkts);
 690
 691                 cqp->in_flight -= nb_cops;
 692
 693                 for (j = 0; j < nb_cops; j++) {
 694                         pkt = cops[j]->sym->m_src;
 695                         rte_prefetch0(pkt);
 696
 697                         priv = get_priv(pkt);
 698                         sa = priv->sa;
 699
 700                         RTE_ASSERT(sa != NULL);
 701
 702                         if (ipsec_get_action_type(sa) ==
 703                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 704                                 ret = xform_func(pkt, sa, cops[j]);
 705                                 if (unlikely(ret)) {
 706                                         free_pkts(&pkt, 1);
 707                                         continue;
 708                                 }
 709                         } else if (ipsec_get_action_type(sa) ==
 710                                 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 711                                 if (cops[j]->status) {
 712                                         free_pkts(&pkt, 1);
 713                                         continue;
 714                                 }
 715                         }
 716                         pkts[nb_pkts++] = pkt;
 717                 }
 718         }
 719
 720         /* return packets */
 721         return nb_pkts;
 722 }
 723
 724 uint16_t
 725 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 726                 uint16_t nb_pkts, uint16_t len)
 727 {
 728         void *sas[nb_pkts];
 729
 730         inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
 731
 732         ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts);
 733
 734         return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len);
 735 }
 736
 737 uint16_t
 738 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 739                 uint16_t len)
 740 {
 741         return ipsec_dequeue(esp_inbound_post, ctx, pkts, len);
 742 }
 743
 744 uint16_t
 745 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 746                 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
 747 {
 748         void *sas[nb_pkts];
 749
 750         outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
 751
 752         ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts);
 753
 754         return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len);
 755 }
 756
 757 uint16_t
 758 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 759                 uint16_t len)
 760 {
 761         return ipsec_dequeue(esp_outbound_post, ctx, pkts, len);
 762 }