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                 } },
 176                 .crypto_xform = sa->xforms,
 177                 .userdata = NULL,
 178         };
 179
 180         if (IS_TRANSPORT(sa->flags)) {
 181                 sess_conf.ipsec.mode = RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT;
 182                 if (IS_IP4(sa->flags)) {
 183                         sess_conf.ipsec.tunnel.type =
 184                                 RTE_SECURITY_IPSEC_TUNNEL_IPV4;
 185
 186                         sess_conf.ipsec.tunnel.ipv4.src_ip.s_addr =
 187                                 sa->src.ip.ip4;
 188                         sess_conf.ipsec.tunnel.ipv4.dst_ip.s_addr =
 189                                 sa->dst.ip.ip4;
 190                 } else if (IS_IP6(sa->flags)) {
 191                         sess_conf.ipsec.tunnel.type =
 192                                 RTE_SECURITY_IPSEC_TUNNEL_IPV6;
 193
 194                         memcpy(sess_conf.ipsec.tunnel.ipv6.src_addr.s6_addr,
 195                                 sa->src.ip.ip6.ip6_b, 16);
 196                         memcpy(sess_conf.ipsec.tunnel.ipv6.dst_addr.s6_addr,
 197                                 sa->dst.ip.ip6.ip6_b, 16);
 198                 }
 199         } else if (IS_TUNNEL(sa->flags)) {
 200                 sess_conf.ipsec.mode = RTE_SECURITY_IPSEC_SA_MODE_TUNNEL;
 201
 202                 if (IS_IP4(sa->flags)) {
 203                         sess_conf.ipsec.tunnel.type =
 204                                 RTE_SECURITY_IPSEC_TUNNEL_IPV4;
 205
 206                         sess_conf.ipsec.tunnel.ipv4.src_ip.s_addr =
 207                                 sa->src.ip.ip4;
 208                         sess_conf.ipsec.tunnel.ipv4.dst_ip.s_addr =
 209                                 sa->dst.ip.ip4;
 210                 } else if (IS_IP6(sa->flags)) {
 211                         sess_conf.ipsec.tunnel.type =
 212                                 RTE_SECURITY_IPSEC_TUNNEL_IPV6;
 213
 214                         memcpy(sess_conf.ipsec.tunnel.ipv6.src_addr.s6_addr,
 215                                 sa->src.ip.ip6.ip6_b, 16);
 216                         memcpy(sess_conf.ipsec.tunnel.ipv6.dst_addr.s6_addr,
 217                                 sa->dst.ip.ip6.ip6_b, 16);
 218                 } else {
 219                         RTE_LOG(ERR, IPSEC, "invalid tunnel type\n");
 220                         return -1;
 221                 }
 222         }
 223
 224         RTE_LOG_DP(DEBUG, IPSEC, "Create session for SA spi %u on port %u\n",
 225                 sa->spi, sa->portid);
 226
 227         if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
 228                 struct rte_flow_error err;
 229                 const struct rte_security_capability *sec_cap;
 230                 int ret = 0;
 231
 232                 sec_ctx = (struct rte_security_ctx *)
 233                                         rte_eth_dev_get_sec_ctx(
 234                                         sa->portid);
 235                 if (sec_ctx == NULL) {
 236                         RTE_LOG(ERR, IPSEC,
 237                                 " rte_eth_dev_get_sec_ctx failed\n");
 238                         return -1;
 239                 }
 240
 241                 ips->security.ses = rte_security_session_create(sec_ctx,
 242                                 &sess_conf, skt_ctx->session_pool,
 243                                 skt_ctx->session_priv_pool);
 244                 if (ips->security.ses == NULL) {
 245                         RTE_LOG(ERR, IPSEC,
 246                                 "SEC Session init failed: err: %d\n", ret);
 247                         return -1;
 248                 }
 249
 250                 sec_cap = rte_security_capabilities_get(sec_ctx);
 251
 252                 /* iterate until ESP tunnel*/
 253                 while (sec_cap->action != RTE_SECURITY_ACTION_TYPE_NONE) {
 254                         if (sec_cap->action == ips->type &&
 255                             sec_cap->protocol ==
 256                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 257                             sec_cap->ipsec.mode ==
 258                                 RTE_SECURITY_IPSEC_SA_MODE_TUNNEL &&
 259                             sec_cap->ipsec.direction == sa->direction)
 260                                 break;
 261                         sec_cap++;
 262                 }
 263
 264                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 265                         RTE_LOG(ERR, IPSEC,
 266                                 "No suitable security capability found\n");
 267                         return -1;
 268                 }
 269
 270                 ips->security.ol_flags = sec_cap->ol_flags;
 271                 ips->security.ctx = sec_ctx;
 272                 sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 273
 274                 if (IS_IP6(sa->flags)) {
 275                         sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 276                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 277                         sa->pattern[1].spec = &sa->ipv6_spec;
 278
 279                         memcpy(sa->ipv6_spec.hdr.dst_addr,
 280                                 sa->dst.ip.ip6.ip6_b, 16);
 281                         memcpy(sa->ipv6_spec.hdr.src_addr,
 282                                sa->src.ip.ip6.ip6_b, 16);
 283                 } else if (IS_IP4(sa->flags)) {
 284                         sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 285                         sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 286                         sa->pattern[1].spec = &sa->ipv4_spec;
 287
 288                         sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 289                         sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 290                 }
 291
 292                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 293                 sa->pattern[2].spec = &sa->esp_spec;
 294                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 295                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 296
 297                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 298
 299                 sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
 300                 sa->action[0].conf = ips->security.ses;
 301
 302                 sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 303
 304                 sa->attr.egress = (sa->direction ==
 305                                 RTE_SECURITY_IPSEC_SA_DIR_EGRESS);
 306                 sa->attr.ingress = (sa->direction ==
 307                                 RTE_SECURITY_IPSEC_SA_DIR_INGRESS);
 308                 if (sa->attr.ingress) {
 309                         uint8_t rss_key[64];
 310                         struct rte_eth_rss_conf rss_conf = {
 311                                 .rss_key = rss_key,
 312                                 .rss_key_len = sizeof(rss_key),
 313                         };
 314                         struct rte_eth_dev_info dev_info;
 315                         uint16_t queue[RTE_MAX_QUEUES_PER_PORT];
 316                         struct rte_flow_action_rss action_rss;
 317                         unsigned int i;
 318                         unsigned int j;
 319
 320                         /* Don't create flow if default flow is created */
 321                         if (flow_info_tbl[sa->portid].rx_def_flow)
 322                                 return 0;
 323
 324                         ret = rte_eth_dev_info_get(sa->portid, &dev_info);
 325                         if (ret != 0) {
 326                                 RTE_LOG(ERR, IPSEC,
 327                                         "Error during getting device (port %u) info: %s\n",
 328                                         sa->portid, strerror(-ret));
 329                                 return ret;
 330                         }
 331
 332                         sa->action[2].type = RTE_FLOW_ACTION_TYPE_END;
 333                         /* Try RSS. */
 334                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS;
 335                         sa->action[1].conf = &action_rss;
 336                         ret = rte_eth_dev_rss_hash_conf_get(sa->portid,
 337                                         &rss_conf);
 338                         if (ret != 0) {
 339                                 RTE_LOG(ERR, IPSEC,
 340                                         "rte_eth_dev_rss_hash_conf_get:ret=%d\n",
 341                                         ret);
 342                                 return -1;
 343                         }
 344                         for (i = 0, j = 0; i < dev_info.nb_rx_queues; ++i)
 345                                 queue[j++] = i;
 346
 347                         action_rss = (struct rte_flow_action_rss){
 348                                         .types = rss_conf.rss_hf,
 349                                         .key_len = rss_conf.rss_key_len,
 350                                         .queue_num = j,
 351                                         .key = rss_key,
 352                                         .queue = queue,
 353                         };
 354                         ret = rte_flow_validate(sa->portid, &sa->attr,
 355                                                 sa->pattern, sa->action,
 356                                                 &err);
 357                         if (!ret)
 358                                 goto flow_create;
 359                         /* Try Queue. */
 360                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 361                         sa->action[1].conf =
 362                                 &(struct rte_flow_action_queue){
 363                                 .index = 0,
 364                         };
 365                         ret = rte_flow_validate(sa->portid, &sa->attr,
 366                                                 sa->pattern, sa->action,
 367                                                 &err);
 368                         /* Try End. */
 369                         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 370                         sa->action[1].conf = NULL;
 371                         ret = rte_flow_validate(sa->portid, &sa->attr,
 372                                                 sa->pattern, sa->action,
 373                                                 &err);
 374                         if (ret)
 375                                 goto flow_create_failure;
 376                 } else if (sa->attr.egress &&
 377                                 (ips->security.ol_flags &
 378                                         RTE_SECURITY_TX_HW_TRAILER_OFFLOAD)) {
 379                         sa->action[1].type =
 380                                         RTE_FLOW_ACTION_TYPE_PASSTHRU;
 381                         sa->action[2].type =
 382                                         RTE_FLOW_ACTION_TYPE_END;
 383                 }
 384 flow_create:
 385                 sa->flow = rte_flow_create(sa->portid,
 386                                 &sa->attr, sa->pattern, sa->action, &err);
 387                 if (sa->flow == NULL) {
 388 flow_create_failure:
 389                         RTE_LOG(ERR, IPSEC,
 390                                 "Failed to create ipsec flow msg: %s\n",
 391                                 err.message);
 392                         return -1;
 393                 }
 394         } else if (ips->type == RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) {
 395                 const struct rte_security_capability *sec_cap;
 396
 397                 sec_ctx = (struct rte_security_ctx *)
 398                                 rte_eth_dev_get_sec_ctx(sa->portid);
 399
 400                 if (sec_ctx == NULL) {
 401                         RTE_LOG(ERR, IPSEC,
 402                                 "Ethernet device doesn't have security features registered\n");
 403                         return -1;
 404                 }
 405
 406                 /* Set IPsec parameters in conf */
 407                 set_ipsec_conf(sa, &(sess_conf.ipsec));
 408
 409                 /* Save SA as userdata for the security session. When
 410                  * the packet is received, this userdata will be
 411                  * retrieved using the metadata from the packet.
 412                  *
 413                  * The PMD is expected to set similar metadata for other
 414                  * operations, like rte_eth_event, which are tied to
 415                  * security session. In such cases, the userdata could
 416                  * be obtained to uniquely identify the security
 417                  * parameters denoted.
 418                  */
 419
 420                 sess_conf.userdata = (void *) sa;
 421
 422                 ips->security.ses = rte_security_session_create(sec_ctx,
 423                                         &sess_conf, skt_ctx->session_pool,
 424                                         skt_ctx->session_priv_pool);
 425                 if (ips->security.ses == NULL) {
 426                         RTE_LOG(ERR, IPSEC,
 427                                 "SEC Session init failed: err: %d\n", ret);
 428                         return -1;
 429                 }
 430
 431                 sec_cap = rte_security_capabilities_get(sec_ctx);
 432                 if (sec_cap == NULL) {
 433                         RTE_LOG(ERR, IPSEC,
 434                                 "No capabilities registered\n");
 435                         return -1;
 436                 }
 437
 438                 /* iterate until ESP tunnel*/
 439                 while (sec_cap->action !=
 440                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 441                         if (sec_cap->action == ips->type &&
 442                             sec_cap->protocol ==
 443                                 RTE_SECURITY_PROTOCOL_IPSEC &&
 444                             sec_cap->ipsec.mode ==
 445                                 sess_conf.ipsec.mode &&
 446                             sec_cap->ipsec.direction == sa->direction)
 447                                 break;
 448                         sec_cap++;
 449                 }
 450
 451                 if (sec_cap->action == RTE_SECURITY_ACTION_TYPE_NONE) {
 452                         RTE_LOG(ERR, IPSEC,
 453                                 "No suitable security capability found\n");
 454                         return -1;
 455                 }
 456
 457                 ips->security.ol_flags = sec_cap->ol_flags;
 458                 ips->security.ctx = sec_ctx;
 459         }
 460
 461         return 0;
 462 }
 463
 464 int
 465 create_ipsec_esp_flow(struct ipsec_sa *sa)
 466 {
 467         int ret = 0;
 468         struct rte_flow_error err;
 469         if (sa->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
 470                 RTE_LOG(ERR, IPSEC,
 471                         "No Flow director rule for Egress traffic\n");
 472                 return -1;
 473         }
 474         if (sa->flags == TRANSPORT) {
 475                 RTE_LOG(ERR, IPSEC,
 476                         "No Flow director rule for transport mode\n");
 477                 return -1;
 478         }
 479         sa->action[0].type = RTE_FLOW_ACTION_TYPE_QUEUE;
 480         sa->pattern[0].type = RTE_FLOW_ITEM_TYPE_ETH;
 481         sa->action[0].conf = &(struct rte_flow_action_queue) {
 482                                 .index = sa->fdir_qid,
 483         };
 484         sa->attr.egress = 0;
 485         sa->attr.ingress = 1;
 486         if (IS_IP6(sa->flags)) {
 487                 sa->pattern[1].mask = &rte_flow_item_ipv6_mask;
 488                 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV6;
 489                 sa->pattern[1].spec = &sa->ipv6_spec;
 490                 memcpy(sa->ipv6_spec.hdr.dst_addr,
 491                         sa->dst.ip.ip6.ip6_b, sizeof(sa->dst.ip.ip6.ip6_b));
 492                 memcpy(sa->ipv6_spec.hdr.src_addr,
 493                         sa->src.ip.ip6.ip6_b, sizeof(sa->src.ip.ip6.ip6_b));
 494                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 495                 sa->pattern[2].spec = &sa->esp_spec;
 496                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 497                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 498                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 499         } else if (IS_IP4(sa->flags)) {
 500                 sa->pattern[1].mask = &rte_flow_item_ipv4_mask;
 501                 sa->pattern[1].type = RTE_FLOW_ITEM_TYPE_IPV4;
 502                 sa->pattern[1].spec = &sa->ipv4_spec;
 503                 sa->ipv4_spec.hdr.dst_addr = sa->dst.ip.ip4;
 504                 sa->ipv4_spec.hdr.src_addr = sa->src.ip.ip4;
 505                 sa->pattern[2].type = RTE_FLOW_ITEM_TYPE_ESP;
 506                 sa->pattern[2].spec = &sa->esp_spec;
 507                 sa->pattern[2].mask = &rte_flow_item_esp_mask;
 508                 sa->esp_spec.hdr.spi = rte_cpu_to_be_32(sa->spi);
 509                 sa->pattern[3].type = RTE_FLOW_ITEM_TYPE_END;
 510         }
 511         sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
 512
 513         ret = rte_flow_validate(sa->portid, &sa->attr, sa->pattern, sa->action,
 514                                 &err);
 515         if (ret < 0) {
 516                 RTE_LOG(ERR, IPSEC, "Flow validation failed %s\n", err.message);
 517                 return ret;
 518         }
 519
 520         sa->flow = rte_flow_create(sa->portid, &sa->attr, sa->pattern,
 521                                         sa->action, &err);
 522         if (!sa->flow) {
 523                 RTE_LOG(ERR, IPSEC, "Flow creation failed %s\n", err.message);
 524                 return -1;
 525         }
 526
 527         return 0;
 528 }
 529
 530 /*
 531  * queue crypto-ops into PMD queue.
 532  */
 533 void
 534 enqueue_cop_burst(struct cdev_qp *cqp)
 535 {
 536         uint32_t i, len, ret;
 537
 538         len = cqp->len;
 539         ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp, cqp->buf, len);
 540         if (ret < len) {
 541                 RTE_LOG_DP(DEBUG, IPSEC, "Cryptodev %u queue %u:"
 542                         " enqueued %u crypto ops out of %u\n",
 543                         cqp->id, cqp->qp, ret, len);
 544                         /* drop packets that we fail to enqueue */
 545                         for (i = ret; i < len; i++)
 546                                 free_pkts(&cqp->buf[i]->sym->m_src, 1);
 547         }
 548         cqp->in_flight += ret;
 549         cqp->len = 0;
 550 }
 551
 552 static inline void
 553 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
 554 {
 555         cqp->buf[cqp->len++] = cop;
 556
 557         if (cqp->len == MAX_PKT_BURST)
 558                 enqueue_cop_burst(cqp);
 559 }
 560
 561 static inline void
 562 ipsec_enqueue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 563                 struct rte_mbuf *pkts[], void *sas[],
 564                 uint16_t nb_pkts)
 565 {
 566         int32_t ret = 0, i;
 567         struct ipsec_mbuf_metadata *priv;
 568         struct rte_crypto_sym_op *sym_cop;
 569         struct ipsec_sa *sa;
 570         struct rte_ipsec_session *ips;
 571
 572         for (i = 0; i < nb_pkts; i++) {
 573                 if (unlikely(sas[i] == NULL)) {
 574                         free_pkts(&pkts[i], 1);
 575                         continue;
 576                 }
 577
 578                 rte_prefetch0(sas[i]);
 579                 rte_prefetch0(pkts[i]);
 580
 581                 priv = get_priv(pkts[i]);
 582                 sa = ipsec_mask_saptr(sas[i]);
 583                 priv->sa = sa;
 584                 ips = ipsec_get_primary_session(sa);
 585
 586                 switch (ips->type) {
 587                 case RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL:
 588                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 589                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 590
 591                         rte_prefetch0(&priv->sym_cop);
 592
 593                         if ((unlikely(ips->security.ses == NULL)) &&
 594                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 595                                 free_pkts(&pkts[i], 1);
 596                                 continue;
 597                         }
 598
 599                         if (unlikely((pkts[i]->packet_type &
 600                                         (RTE_PTYPE_TUNNEL_MASK |
 601                                         RTE_PTYPE_L4_MASK)) ==
 602                                         MBUF_PTYPE_TUNNEL_ESP_IN_UDP &&
 603                                         sa->udp_encap != 1)) {
 604                                 free_pkts(&pkts[i], 1);
 605                                 continue;
 606                         }
 607
 608                         sym_cop = get_sym_cop(&priv->cop);
 609                         sym_cop->m_src = pkts[i];
 610
 611                         rte_security_attach_session(&priv->cop,
 612                                 ips->security.ses);
 613                         break;
 614
 615                 case RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO:
 616                         RTE_LOG(ERR, IPSEC, "CPU crypto is not supported by the"
 617                                         " legacy mode.");
 618                         free_pkts(&pkts[i], 1);
 619                         continue;
 620
 621                 case RTE_SECURITY_ACTION_TYPE_NONE:
 622
 623                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 624                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 625
 626                         rte_prefetch0(&priv->sym_cop);
 627
 628                         if ((unlikely(ips->crypto.ses == NULL)) &&
 629                                 create_lookaside_session(ipsec_ctx, sa, ips)) {
 630                                 free_pkts(&pkts[i], 1);
 631                                 continue;
 632                         }
 633
 634                         rte_crypto_op_attach_sym_session(&priv->cop,
 635                                         ips->crypto.ses);
 636
 637                         ret = xform_func(pkts[i], sa, &priv->cop);
 638                         if (unlikely(ret)) {
 639                                 free_pkts(&pkts[i], 1);
 640                                 continue;
 641                         }
 642                         break;
 643                 case RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL:
 644                         RTE_ASSERT(ips->security.ses != NULL);
 645                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 646                         if (ips->security.ol_flags &
 647                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 648                                 rte_security_set_pkt_metadata(
 649                                         ips->security.ctx, ips->security.ses,
 650                                         pkts[i], NULL);
 651                         continue;
 652                 case RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO:
 653                         RTE_ASSERT(ips->security.ses != NULL);
 654                         priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 655                         priv->cop.status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 656
 657                         rte_prefetch0(&priv->sym_cop);
 658                         rte_security_attach_session(&priv->cop,
 659                                         ips->security.ses);
 660
 661                         ret = xform_func(pkts[i], sa, &priv->cop);
 662                         if (unlikely(ret)) {
 663                                 free_pkts(&pkts[i], 1);
 664                                 continue;
 665                         }
 666
 667                         ipsec_ctx->ol_pkts[ipsec_ctx->ol_pkts_cnt++] = pkts[i];
 668                         if (ips->security.ol_flags &
 669                                 RTE_SECURITY_TX_OLOAD_NEED_MDATA)
 670                                 rte_security_set_pkt_metadata(
 671                                         ips->security.ctx, ips->security.ses,
 672                                         pkts[i], NULL);
 673                         continue;
 674                 }
 675
 676                 RTE_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
 677                 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
 678         }
 679 }
 680
 681 static inline int32_t
 682 ipsec_inline_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 683               struct rte_mbuf *pkts[], uint16_t max_pkts)
 684 {
 685         int32_t nb_pkts, ret;
 686         struct ipsec_mbuf_metadata *priv;
 687         struct ipsec_sa *sa;
 688         struct rte_mbuf *pkt;
 689
 690         nb_pkts = 0;
 691         while (ipsec_ctx->ol_pkts_cnt > 0 && nb_pkts < max_pkts) {
 692                 pkt = ipsec_ctx->ol_pkts[--ipsec_ctx->ol_pkts_cnt];
 693                 rte_prefetch0(pkt);
 694                 priv = get_priv(pkt);
 695                 sa = priv->sa;
 696                 ret = xform_func(pkt, sa, &priv->cop);
 697                 if (unlikely(ret)) {
 698                         free_pkts(&pkt, 1);
 699                         continue;
 700                 }
 701                 pkts[nb_pkts++] = pkt;
 702         }
 703
 704         return nb_pkts;
 705 }
 706
 707 static inline int
 708 ipsec_dequeue(ipsec_xform_fn xform_func, struct ipsec_ctx *ipsec_ctx,
 709               struct rte_mbuf *pkts[], uint16_t max_pkts)
 710 {
 711         int32_t nb_pkts = 0, ret = 0, i, j, nb_cops;
 712         struct ipsec_mbuf_metadata *priv;
 713         struct rte_crypto_op *cops[max_pkts];
 714         struct ipsec_sa *sa;
 715         struct rte_mbuf *pkt;
 716
 717         for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
 718                 struct cdev_qp *cqp;
 719
 720                 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
 721                 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
 722                         ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
 723
 724                 if (cqp->in_flight == 0)
 725                         continue;
 726
 727                 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
 728                                 cops, max_pkts - nb_pkts);
 729
 730                 cqp->in_flight -= nb_cops;
 731
 732                 for (j = 0; j < nb_cops; j++) {
 733                         pkt = cops[j]->sym->m_src;
 734                         rte_prefetch0(pkt);
 735
 736                         priv = get_priv(pkt);
 737                         sa = priv->sa;
 738
 739                         RTE_ASSERT(sa != NULL);
 740
 741                         if (ipsec_get_action_type(sa) ==
 742                                 RTE_SECURITY_ACTION_TYPE_NONE) {
 743                                 ret = xform_func(pkt, sa, cops[j]);
 744                                 if (unlikely(ret)) {
 745                                         free_pkts(&pkt, 1);
 746                                         continue;
 747                                 }
 748                         } else if (ipsec_get_action_type(sa) ==
 749                                 RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL) {
 750                                 if (cops[j]->status) {
 751                                         free_pkts(&pkt, 1);
 752                                         continue;
 753                                 }
 754                         }
 755                         pkts[nb_pkts++] = pkt;
 756                 }
 757         }
 758
 759         /* return packets */
 760         return nb_pkts;
 761 }
 762
 763 uint16_t
 764 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 765                 uint16_t nb_pkts, uint16_t len)
 766 {
 767         void *sas[nb_pkts];
 768
 769         inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
 770
 771         ipsec_enqueue(esp_inbound, ctx, pkts, sas, nb_pkts);
 772
 773         return ipsec_inline_dequeue(esp_inbound_post, ctx, pkts, len);
 774 }
 775
 776 uint16_t
 777 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 778                 uint16_t len)
 779 {
 780         return ipsec_dequeue(esp_inbound_post, ctx, pkts, len);
 781 }
 782
 783 uint16_t
 784 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 785                 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
 786 {
 787         void *sas[nb_pkts];
 788
 789         outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
 790
 791         ipsec_enqueue(esp_outbound, ctx, pkts, sas, nb_pkts);
 792
 793         return ipsec_inline_dequeue(esp_outbound_post, ctx, pkts, len);
 794 }
 795
 796 uint16_t
 797 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
 798                 uint16_t len)
 799 {
 800         return ipsec_dequeue(esp_outbound_post, ctx, pkts, len);
 801 }