src/plugins/dpdk/ipsec/esp_encrypt.c

   1 /*
   2  * esp_encrypt.c : IPSec ESP encrypt node using DPDK Cryptodev
   3  *
   4  * Copyright (c) 2017 Intel and/or its affiliates.
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at:
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include <vnet/vnet.h>
  19 #include <vnet/api_errno.h>
  20 #include <vnet/ip/ip.h>
  21
  22 #include <vnet/ipsec/ipsec.h>
  23 #include <vnet/ipsec/esp.h>
  24 #include <vnet/udp/udp.h>
  25 #include <dpdk/ipsec/ipsec.h>
  26 #include <dpdk/device/dpdk.h>
  27 #include <dpdk/device/dpdk_priv.h>
  28
  29 #define foreach_esp_encrypt_next                   \
  30 _(DROP, "error-drop")                              \
  31 _(IP4_LOOKUP, "ip4-lookup")                        \
  32 _(IP6_LOOKUP, "ip6-lookup")                        \
  33 _(INTERFACE_OUTPUT, "interface-output")
  34
  35 #define _(v, s) ESP_ENCRYPT_NEXT_##v,
  36 typedef enum
  37 {
  38   foreach_esp_encrypt_next
  39 #undef _
  40     ESP_ENCRYPT_N_NEXT,
  41 } esp_encrypt_next_t;
  42
  43 #define foreach_esp_encrypt_error                   \
  44  _(RX_PKTS, "ESP pkts received")                    \
  45  _(SEQ_CYCLED, "Sequence number cycled")            \
  46  _(ENQ_FAIL, "Enqueue failed to crypto device")     \
  47  _(DISCARD, "Not enough crypto operations, discarding frame")  \
  48  _(SESSION, "Failed to get crypto session")         \
  49  _(NOSUP, "Cipher/Auth not supported")
  50
  51
  52 typedef enum
  53 {
  54 #define _(sym,str) ESP_ENCRYPT_ERROR_##sym,
  55   foreach_esp_encrypt_error
  56 #undef _
  57     ESP_ENCRYPT_N_ERROR,
  58 } esp_encrypt_error_t;
  59
  60 static char *esp_encrypt_error_strings[] = {
  61 #define _(sym,string) string,
  62   foreach_esp_encrypt_error
  63 #undef _
  64 };
  65
  66 vlib_node_registration_t dpdk_esp4_encrypt_node;
  67 vlib_node_registration_t dpdk_esp6_encrypt_node;
  68
  69 typedef struct
  70 {
  71   ipsec_crypto_alg_t crypto_alg;
  72   ipsec_integ_alg_t integ_alg;
  73   u8 packet_data[64];
  74 } esp_encrypt_trace_t;
  75
  76 /* packet trace format function */
  77 static u8 *
  78 format_esp_encrypt_trace (u8 * s, va_list * args)
  79 {
  80   CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
  81   CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
  82   esp_encrypt_trace_t *t = va_arg (*args, esp_encrypt_trace_t *);
  83   ip4_header_t *ih4 = (ip4_header_t *) t->packet_data;
  84   u32 indent = format_get_indent (s), offset;
  85
  86   s = format (s, "cipher %U auth %U\n",
  87               format_ipsec_crypto_alg, t->crypto_alg,
  88               format_ipsec_integ_alg, t->integ_alg);
  89
  90   if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
  91     {
  92       s = format (s, "%U%U", format_white_space, indent,
  93                   format_ip6_header, ih4);
  94       offset = sizeof (ip6_header_t);
  95     }
  96   else
  97     {
  98       s = format (s, "%U%U", format_white_space, indent,
  99                   format_ip4_header, ih4);
 100       offset = ip4_header_bytes (ih4);
 101     }
 102
 103   s = format (s, "\n%U%U", format_white_space, indent,
 104               format_esp_header, t->packet_data + offset);
 105
 106   return s;
 107 }
 108
 109 always_inline uword
 110 dpdk_esp_encrypt_inline (vlib_main_t * vm,
 111                          vlib_node_runtime_t * node,
 112                          vlib_frame_t * from_frame, int is_ip6)
 113 {
 114   u32 n_left_from, *from, *to_next, next_index;
 115   ipsec_main_t *im = &ipsec_main;
 116   u32 thread_idx = vlib_get_thread_index ();
 117   dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
 118   crypto_resource_t *res = 0;
 119   ipsec_sa_t *sa0 = 0;
 120   crypto_alg_t *cipher_alg = 0, *auth_alg = 0;
 121   struct rte_cryptodev_sym_session *session = 0;
 122   u32 ret, last_sa_index = ~0;
 123   u8 numa = rte_socket_id ();
 124   u8 is_aead = 0;
 125   crypto_worker_main_t *cwm =
 126     vec_elt_at_index (dcm->workers_main, thread_idx);
 127   struct rte_crypto_op **ops = cwm->ops;
 128
 129   from = vlib_frame_vector_args (from_frame);
 130   n_left_from = from_frame->n_vectors;
 131
 132   ret = crypto_alloc_ops (numa, ops, n_left_from);
 133   if (ret)
 134     {
 135       if (is_ip6)
 136         vlib_node_increment_counter (vm, dpdk_esp6_encrypt_node.index,
 137                                      ESP_ENCRYPT_ERROR_DISCARD, 1);
 138       else
 139         vlib_node_increment_counter (vm, dpdk_esp4_encrypt_node.index,
 140                                      ESP_ENCRYPT_ERROR_DISCARD, 1);
 141       /* Discard whole frame */
 142       return n_left_from;
 143     }
 144
 145   next_index = ESP_ENCRYPT_NEXT_DROP;
 146
 147   while (n_left_from > 0)
 148     {
 149       u32 n_left_to_next;
 150
 151       vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
 152
 153       while (n_left_from > 0 && n_left_to_next > 0)
 154         {
 155           clib_error_t *error;
 156           u32 bi0;
 157           vlib_buffer_t *b0 = 0;
 158           u32 sa_index0;
 159           ip4_and_esp_header_t *ih0, *oh0 = 0;
 160           ip6_and_esp_header_t *ih6_0, *oh6_0 = 0;
 161           ip4_and_udp_and_esp_header_t *ouh0 = 0;
 162           esp_header_t *esp0;
 163           esp_footer_t *f0;
 164           u8 next_hdr_type;
 165           u32 iv_size;
 166           u16 orig_sz;
 167           u8 trunc_size;
 168           u16 rewrite_len;
 169           u16 udp_encap_adv = 0;
 170           struct rte_mbuf *mb0 = 0;
 171           struct rte_crypto_op *op;
 172           u16 res_idx;
 173
 174           bi0 = from[0];
 175           from += 1;
 176           n_left_from -= 1;
 177
 178           b0 = vlib_get_buffer (vm, bi0);
 179           ih0 = vlib_buffer_get_current (b0);
 180           mb0 = rte_mbuf_from_vlib_buffer (b0);
 181
 182           /* ih0/ih6_0 */
 183           CLIB_PREFETCH (ih0, sizeof (ih6_0[0]), LOAD);
 184           /* f0 */
 185           CLIB_PREFETCH (vlib_buffer_get_tail (b0), 20, STORE);
 186           /* mb0 */
 187           CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
 188
 189           op = ops[0];
 190           ops += 1;
 191           ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
 192
 193           dpdk_op_priv_t *priv = crypto_op_get_priv (op);
 194
 195           u16 op_len =
 196             sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
 197           CLIB_PREFETCH (op, op_len, STORE);
 198
 199           sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
 200
 201           if (sa_index0 != last_sa_index)
 202             {
 203               sa0 = pool_elt_at_index (im->sad, sa_index0);
 204
 205               cipher_alg =
 206                 vec_elt_at_index (dcm->cipher_algs, sa0->crypto_alg);
 207               auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
 208
 209               is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
 210
 211               if (is_aead)
 212                 auth_alg = cipher_alg;
 213
 214               res_idx = get_resource (cwm, sa0);
 215
 216               if (PREDICT_FALSE (res_idx == (u16) ~ 0))
 217                 {
 218                   clib_warning ("unsupported SA by thread index %u",
 219                                 thread_idx);
 220                   if (is_ip6)
 221                     vlib_node_increment_counter (vm,
 222                                                  dpdk_esp6_encrypt_node.index,
 223                                                  ESP_ENCRYPT_ERROR_NOSUP, 1);
 224                   else
 225                     vlib_node_increment_counter (vm,
 226                                                  dpdk_esp4_encrypt_node.index,
 227                                                  ESP_ENCRYPT_ERROR_NOSUP, 1);
 228                   to_next[0] = bi0;
 229                   to_next += 1;
 230                   n_left_to_next -= 1;
 231                   goto trace;
 232                 }
 233               res = vec_elt_at_index (dcm->resource, res_idx);
 234
 235               error = crypto_get_session (&session, sa_index0, res, cwm, 1);
 236               if (PREDICT_FALSE (error || !session))
 237                 {
 238                   clib_warning ("failed to get crypto session");
 239                   if (is_ip6)
 240                     vlib_node_increment_counter (vm,
 241                                                  dpdk_esp6_encrypt_node.index,
 242                                                  ESP_ENCRYPT_ERROR_SESSION,
 243                                                  1);
 244                   else
 245                     vlib_node_increment_counter (vm,
 246                                                  dpdk_esp4_encrypt_node.index,
 247                                                  ESP_ENCRYPT_ERROR_SESSION,
 248                                                  1);
 249                   to_next[0] = bi0;
 250                   to_next += 1;
 251                   n_left_to_next -= 1;
 252                   goto trace;
 253                 }
 254
 255               last_sa_index = sa_index0;
 256             }
 257
 258           if (PREDICT_FALSE (esp_seq_advance (sa0)))
 259             {
 260               clib_warning ("sequence number counter has cycled SPI %u",
 261                             sa0->spi);
 262               if (is_ip6)
 263                 vlib_node_increment_counter (vm,
 264                                              dpdk_esp6_encrypt_node.index,
 265                                              ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
 266               else
 267                 vlib_node_increment_counter (vm,
 268                                              dpdk_esp4_encrypt_node.index,
 269                                              ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
 270               //TODO: rekey SA
 271               to_next[0] = bi0;
 272               to_next += 1;
 273               n_left_to_next -= 1;
 274               goto trace;
 275             }
 276
 277           orig_sz = b0->current_length;
 278
 279           /* TODO multi-seg support - total_length_not_including_first_buffer */
 280           sa0->total_data_size += b0->current_length;
 281
 282           res->ops[res->n_ops] = op;
 283           res->bi[res->n_ops] = bi0;
 284           res->n_ops += 1;
 285
 286           dpdk_gcm_cnt_blk *icb = &priv->cb;
 287
 288           crypto_set_icb (icb, sa0->salt, sa0->seq, sa0->seq_hi);
 289
 290           iv_size = cipher_alg->iv_len;
 291           trunc_size = auth_alg->trunc_size;
 292
 293           /* if UDP encapsulation is used adjust the address of the IP header */
 294           if (sa0->udp_encap && !is_ip6)
 295             udp_encap_adv = sizeof (udp_header_t);
 296
 297           if (sa0->is_tunnel)
 298             {
 299               rewrite_len = 0;
 300               if (!is_ip6 && !sa0->is_tunnel_ip6)       /* ip4inip4 */
 301                 {
 302                   /* in tunnel mode send it back to FIB */
 303                   priv->next = DPDK_CRYPTO_INPUT_NEXT_IP4_LOOKUP;
 304                   u8 adv = sizeof (ip4_header_t) + udp_encap_adv +
 305                     sizeof (esp_header_t) + iv_size;
 306                   vlib_buffer_advance (b0, -adv);
 307                   oh0 = vlib_buffer_get_current (b0);
 308                   ouh0 = vlib_buffer_get_current (b0);
 309                   next_hdr_type = IP_PROTOCOL_IP_IN_IP;
 310                   /*
 311                    * oh0->ip4.ip_version_and_header_length = 0x45;
 312                    * oh0->ip4.tos = ih0->ip4.tos;
 313                    * oh0->ip4.fragment_id = 0;
 314                    * oh0->ip4.flags_and_fragment_offset = 0;
 315                    */
 316                   oh0->ip4.checksum_data_64[0] =
 317                     clib_host_to_net_u64 (0x45ULL << 56);
 318                   /*
 319                    * oh0->ip4.ttl = 254;
 320                    * oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
 321                    */
 322                   oh0->ip4.checksum_data_32[2] =
 323                     clib_host_to_net_u32 (0xfe320000);
 324
 325                   oh0->ip4.src_address.as_u32 =
 326                     sa0->tunnel_src_addr.ip4.as_u32;
 327                   oh0->ip4.dst_address.as_u32 =
 328                     sa0->tunnel_dst_addr.ip4.as_u32;
 329
 330                   if (sa0->udp_encap)
 331                     {
 332                       oh0->ip4.protocol = IP_PROTOCOL_UDP;
 333                       esp0 = &ouh0->esp;
 334                     }
 335                   else
 336                     esp0 = &oh0->esp;
 337                   esp0->spi = clib_host_to_net_u32 (sa0->spi);
 338                   esp0->seq = clib_host_to_net_u32 (sa0->seq);
 339                 }
 340               else if (is_ip6 && sa0->is_tunnel_ip6)    /* ip6inip6 */
 341                 {
 342                   /* in tunnel mode send it back to FIB */
 343                   priv->next = DPDK_CRYPTO_INPUT_NEXT_IP6_LOOKUP;
 344
 345                   u8 adv =
 346                     sizeof (ip6_header_t) + sizeof (esp_header_t) + iv_size;
 347                   vlib_buffer_advance (b0, -adv);
 348                   ih6_0 = (ip6_and_esp_header_t *) ih0;
 349                   oh6_0 = vlib_buffer_get_current (b0);
 350
 351                   next_hdr_type = IP_PROTOCOL_IPV6;
 352
 353                   oh6_0->ip6.ip_version_traffic_class_and_flow_label =
 354                     ih6_0->ip6.ip_version_traffic_class_and_flow_label;
 355
 356                   oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
 357                   oh6_0->ip6.hop_limit = 254;
 358                   oh6_0->ip6.src_address.as_u64[0] =
 359                     sa0->tunnel_src_addr.ip6.as_u64[0];
 360                   oh6_0->ip6.src_address.as_u64[1] =
 361                     sa0->tunnel_src_addr.ip6.as_u64[1];
 362                   oh6_0->ip6.dst_address.as_u64[0] =
 363                     sa0->tunnel_dst_addr.ip6.as_u64[0];
 364                   oh6_0->ip6.dst_address.as_u64[1] =
 365                     sa0->tunnel_dst_addr.ip6.as_u64[1];
 366                   esp0 = &oh6_0->esp;
 367                   oh6_0->esp.spi = clib_host_to_net_u32 (sa0->spi);
 368                   oh6_0->esp.seq = clib_host_to_net_u32 (sa0->seq);
 369                 }
 370               else              /* unsupported ip4inip6, ip6inip4 */
 371                 {
 372                   if (is_ip6)
 373                     vlib_node_increment_counter (vm,
 374                                                  dpdk_esp6_encrypt_node.index,
 375                                                  ESP_ENCRYPT_ERROR_NOSUP, 1);
 376                   else
 377                     vlib_node_increment_counter (vm,
 378                                                  dpdk_esp4_encrypt_node.index,
 379                                                  ESP_ENCRYPT_ERROR_NOSUP, 1);
 380                   to_next[0] = bi0;
 381                   to_next += 1;
 382                   n_left_to_next -= 1;
 383                   goto trace;
 384                 }
 385               vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
 386             }
 387           else                  /* transport mode */
 388             {
 389               priv->next = DPDK_CRYPTO_INPUT_NEXT_INTERFACE_OUTPUT;
 390               rewrite_len = vnet_buffer (b0)->ip.save_rewrite_length;
 391               u16 adv = sizeof (esp_header_t) + iv_size + udp_encap_adv;
 392               vlib_buffer_advance (b0, -adv - rewrite_len);
 393               u8 *src = ((u8 *) ih0) - rewrite_len;
 394               u8 *dst = vlib_buffer_get_current (b0);
 395               oh0 = vlib_buffer_get_current (b0) + rewrite_len;
 396
 397               if (is_ip6)
 398                 {
 399                   orig_sz -= sizeof (ip6_header_t);
 400                   ih6_0 = (ip6_and_esp_header_t *) ih0;
 401                   next_hdr_type = ih6_0->ip6.protocol;
 402                   memmove (dst, src, rewrite_len + sizeof (ip6_header_t));
 403                   oh6_0 = (ip6_and_esp_header_t *) oh0;
 404                   oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
 405                   esp0 = &oh6_0->esp;
 406                 }
 407               else              /* ipv4 */
 408                 {
 409                   u16 ip_size = ip4_header_bytes (&ih0->ip4);
 410                   orig_sz -= ip_size;
 411                   next_hdr_type = ih0->ip4.protocol;
 412                   memmove (dst, src, rewrite_len + ip_size);
 413                   oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
 414                   esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
 415                   if (sa0->udp_encap)
 416                     {
 417                       oh0->ip4.protocol = IP_PROTOCOL_UDP;
 418                       esp0 = (esp_header_t *)
 419                         (((u8 *) oh0) + ip_size + udp_encap_adv);
 420                     }
 421                   else
 422                     {
 423                       oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
 424                       esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
 425                     }
 426                 }
 427               esp0->spi = clib_host_to_net_u32 (sa0->spi);
 428               esp0->seq = clib_host_to_net_u32 (sa0->seq);
 429             }
 430
 431           if (sa0->udp_encap && ouh0)
 432             {
 433               ouh0->udp.src_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
 434               ouh0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
 435               ouh0->udp.checksum = 0;
 436             }
 437           ASSERT (is_pow2 (cipher_alg->boundary));
 438           u16 mask = cipher_alg->boundary - 1;
 439           u16 pad_payload_len = ((orig_sz + 2) + mask) & ~mask;
 440           u8 pad_bytes = pad_payload_len - 2 - orig_sz;
 441
 442           u8 *padding =
 443             vlib_buffer_put_uninit (b0, pad_bytes + 2 + trunc_size);
 444
 445           /* The extra pad bytes would be overwritten by the digest */
 446           if (pad_bytes)
 447             clib_memcpy (padding, pad_data, 16);
 448
 449           f0 = (esp_footer_t *) (padding + pad_bytes);
 450           f0->pad_length = pad_bytes;
 451           f0->next_header = next_hdr_type;
 452
 453           if (is_ip6)
 454             {
 455               u16 len = b0->current_length - sizeof (ip6_header_t);
 456               oh6_0->ip6.payload_length =
 457                 clib_host_to_net_u16 (len - rewrite_len);
 458             }
 459           else
 460             {
 461               oh0->ip4.length =
 462                 clib_host_to_net_u16 (b0->current_length - rewrite_len);
 463               oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
 464               if (sa0->udp_encap && ouh0)
 465                 {
 466                   ouh0->udp.length =
 467                     clib_host_to_net_u16 (clib_net_to_host_u16
 468                                           (ouh0->ip4.length) -
 469                                           ip4_header_bytes (&ouh0->ip4));
 470                 }
 471             }
 472
 473           vnet_buffer (b0)->sw_if_index[VLIB_RX] =
 474             vnet_buffer (b0)->sw_if_index[VLIB_RX];
 475           b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
 476
 477           /* mbuf packet starts at ESP header */
 478           mb0->data_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
 479           mb0->pkt_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
 480           mb0->data_off = ((void *) esp0) - mb0->buf_addr;
 481
 482           u32 cipher_off, cipher_len, auth_len = 0;
 483           u32 *aad = NULL;
 484
 485           u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
 486           u64 digest_paddr =
 487             mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
 488
 489           if (!is_aead && cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC)
 490             {
 491               cipher_off = sizeof (esp_header_t);
 492               cipher_len = iv_size + pad_payload_len;
 493             }
 494           else                  /* CTR/GCM */
 495             {
 496               u32 *esp_iv = (u32 *) (esp0 + 1);
 497               esp_iv[0] = sa0->seq;
 498               esp_iv[1] = sa0->seq_hi;
 499
 500               cipher_off = sizeof (esp_header_t) + iv_size;
 501               cipher_len = pad_payload_len;
 502             }
 503
 504           if (is_aead)
 505             {
 506               aad = (u32 *) priv->aad;
 507               aad[0] = clib_host_to_net_u32 (sa0->spi);
 508               aad[1] = clib_host_to_net_u32 (sa0->seq);
 509
 510               /* aad[3] should always be 0 */
 511               if (PREDICT_FALSE (sa0->use_esn))
 512                 aad[2] = clib_host_to_net_u32 (sa0->seq_hi);
 513               else
 514                 aad[2] = 0;
 515             }
 516           else
 517             {
 518               auth_len =
 519                 vlib_buffer_get_tail (b0) - ((u8 *) esp0) - trunc_size;
 520               if (sa0->use_esn)
 521                 {
 522                   u32 *_digest = (u32 *) digest;
 523                   _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
 524                   auth_len += 4;
 525                 }
 526             }
 527
 528           crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
 529                            0, auth_len, (u8 *) aad, digest, digest_paddr);
 530
 531         trace:
 532           if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
 533             {
 534               esp_encrypt_trace_t *tr =
 535                 vlib_add_trace (vm, node, b0, sizeof (*tr));
 536               tr->crypto_alg = sa0->crypto_alg;
 537               tr->integ_alg = sa0->integ_alg;
 538               u8 *p = vlib_buffer_get_current (b0);
 539               if (!sa0->is_tunnel)
 540                 p += vnet_buffer (b0)->ip.save_rewrite_length;
 541               clib_memcpy (tr->packet_data, p, sizeof (tr->packet_data));
 542             }
 543         }
 544       vlib_put_next_frame (vm, node, next_index, n_left_to_next);
 545     }
 546   if (is_ip6)
 547     {
 548       vlib_node_increment_counter (vm, dpdk_esp6_encrypt_node.index,
 549                                    ESP_ENCRYPT_ERROR_RX_PKTS,
 550                                    from_frame->n_vectors);
 551
 552       crypto_enqueue_ops (vm, cwm, 1, dpdk_esp6_encrypt_node.index,
 553                           ESP_ENCRYPT_ERROR_ENQ_FAIL, numa);
 554     }
 555   else
 556     {
 557       vlib_node_increment_counter (vm, dpdk_esp4_encrypt_node.index,
 558                                    ESP_ENCRYPT_ERROR_RX_PKTS,
 559                                    from_frame->n_vectors);
 560
 561       crypto_enqueue_ops (vm, cwm, 1, dpdk_esp4_encrypt_node.index,
 562                           ESP_ENCRYPT_ERROR_ENQ_FAIL, numa);
 563     }
 564
 565   crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
 566
 567   return from_frame->n_vectors;
 568 }
 569
 570 static uword
 571 dpdk_esp4_encrypt_node_fn (vlib_main_t * vm,
 572                            vlib_node_runtime_t * node,
 573                            vlib_frame_t * from_frame)
 574 {
 575   return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ );
 576 }
 577
 578 /* *INDENT-OFF* */
 579 VLIB_REGISTER_NODE (dpdk_esp4_encrypt_node) = {
 580   .function = dpdk_esp4_encrypt_node_fn,
 581   .name = "dpdk4-esp-encrypt",
 582   .flags = VLIB_NODE_FLAG_IS_OUTPUT,
 583   .vector_size = sizeof (u32),
 584   .format_trace = format_esp_encrypt_trace,
 585   .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
 586   .error_strings = esp_encrypt_error_strings,
 587   .n_next_nodes = 1,
 588   .next_nodes =
 589     {
 590       [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
 591     }
 592 };
 593 /* *INDENT-ON* */
 594
 595 VLIB_NODE_FUNCTION_MULTIARCH (dpdk_esp4_encrypt_node,
 596                               dpdk_esp4_encrypt_node_fn);
 597
 598 static uword
 599 dpdk_esp6_encrypt_node_fn (vlib_main_t * vm,
 600                            vlib_node_runtime_t * node,
 601                            vlib_frame_t * from_frame)
 602 {
 603   return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ );
 604 }
 605
 606 /* *INDENT-OFF* */
 607 VLIB_REGISTER_NODE (dpdk_esp6_encrypt_node) = {
 608   .function = dpdk_esp6_encrypt_node_fn,
 609   .name = "dpdk6-esp-encrypt",
 610   .flags = VLIB_NODE_FLAG_IS_OUTPUT,
 611   .vector_size = sizeof (u32),
 612   .format_trace = format_esp_encrypt_trace,
 613   .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
 614   .error_strings = esp_encrypt_error_strings,
 615   .n_next_nodes = 1,
 616   .next_nodes =
 617     {
 618       [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
 619     }
 620 };
 621 /* *INDENT-ON* */
 622
 623 VLIB_NODE_FUNCTION_MULTIARCH (dpdk_esp6_encrypt_node,
 624                               dpdk_esp6_encrypt_node_fn);
 625 /*
 626  * fd.io coding-style-patch-verification: ON
 627  *
 628  * Local Variables:
 629  * eval: (c-set-style "gnu")
 630  * End:
 631  */