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