dpdk: deprecate ipsec backend
[vpp.git] / src / plugins / dpdk / ipsec / esp_encrypt.c
diff --git a/src/plugins/dpdk/ipsec/esp_encrypt.c b/src/plugins/dpdk/ipsec/esp_encrypt.c
deleted file mode 100644 (file)
index 157c93f..0000000
+++ /dev/null
@@ -1,710 +0,0 @@
-/*
- * esp_encrypt.c : IPSec ESP encrypt node using DPDK Cryptodev
- *
- * Copyright (c) 2017 Intel and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <vnet/vnet.h>
-#include <vnet/api_errno.h>
-#include <vnet/ip/ip.h>
-
-#include <vnet/ipsec/ipsec.h>
-#include <vnet/ipsec/esp.h>
-#include <vnet/udp/udp_local.h>
-#include <dpdk/buffer.h>
-#include <dpdk/ipsec/ipsec.h>
-#include <vnet/ipsec/ipsec_tun.h>
-#include <dpdk/device/dpdk.h>
-#include <dpdk/device/dpdk_priv.h>
-
-#define foreach_esp_encrypt_next                   \
-_(DROP, "error-drop")                              \
-_(IP4_LOOKUP, "ip4-lookup")                        \
-_(IP6_LOOKUP, "ip6-lookup")                        \
-_(INTERFACE_OUTPUT, "interface-output")
-
-#define _(v, s) ESP_ENCRYPT_NEXT_##v,
-typedef enum
-{
-  foreach_esp_encrypt_next
-#undef _
-    ESP_ENCRYPT_N_NEXT,
-} esp_encrypt_next_t;
-
-#define foreach_esp_encrypt_error                   \
- _(RX_PKTS, "ESP pkts received")                    \
- _(SEQ_CYCLED, "Sequence number cycled")            \
- _(ENQ_FAIL, "Enqueue encrypt failed (queue full)")     \
- _(DISCARD, "Not enough crypto operations")         \
- _(SESSION, "Failed to get crypto session")         \
- _(NOSUP, "Cipher/Auth not supported")
-
-
-typedef enum
-{
-#define _(sym,str) ESP_ENCRYPT_ERROR_##sym,
-  foreach_esp_encrypt_error
-#undef _
-    ESP_ENCRYPT_N_ERROR,
-} esp_encrypt_error_t;
-
-static char *esp_encrypt_error_strings[] = {
-#define _(sym,string) string,
-  foreach_esp_encrypt_error
-#undef _
-};
-
-extern vlib_node_registration_t dpdk_esp4_encrypt_node;
-extern vlib_node_registration_t dpdk_esp6_encrypt_node;
-extern vlib_node_registration_t dpdk_esp4_encrypt_tun_node;
-extern vlib_node_registration_t dpdk_esp6_encrypt_tun_node;
-
-typedef struct
-{
-  ipsec_crypto_alg_t crypto_alg;
-  ipsec_integ_alg_t integ_alg;
-  u8 packet_data[64];
-} esp_encrypt_trace_t;
-
-/* packet trace format function */
-static u8 *
-format_esp_encrypt_trace (u8 * s, va_list * args)
-{
-  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
-  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
-  esp_encrypt_trace_t *t = va_arg (*args, esp_encrypt_trace_t *);
-  ip4_header_t *ih4 = (ip4_header_t *) t->packet_data;
-  u32 indent = format_get_indent (s), offset;
-
-  s = format (s, "cipher %U auth %U\n",
-             format_ipsec_crypto_alg, t->crypto_alg,
-             format_ipsec_integ_alg, t->integ_alg);
-
-  if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
-    {
-      s = format (s, "%U%U", format_white_space, indent,
-                 format_ip6_header, ih4);
-      offset = sizeof (ip6_header_t);
-    }
-  else
-    {
-      s = format (s, "%U%U", format_white_space, indent,
-                 format_ip4_header, ih4);
-      offset = ip4_header_bytes (ih4);
-    }
-
-  s = format (s, "\n%U%U", format_white_space, indent,
-             format_esp_header, t->packet_data + offset);
-
-  return s;
-}
-
-always_inline uword
-dpdk_esp_encrypt_inline (vlib_main_t * vm,
-                        vlib_node_runtime_t * node,
-                        vlib_frame_t * from_frame, int is_ip6, int is_tun)
-{
-  u32 n_left_from, *from, *to_next, next_index, thread_index;
-  ipsec_main_t *im = &ipsec_main;
-  vnet_main_t *vnm = im->vnet_main;
-  vnet_interface_main_t *vim = &vnm->interface_main;
-  u32 thread_idx = vlib_get_thread_index ();
-  dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
-  crypto_resource_t *res = 0;
-  ipsec_sa_t *sa0 = 0;
-  crypto_alg_t *cipher_alg = 0, *auth_alg = 0;
-  struct rte_cryptodev_sym_session *session = 0;
-  u32 ret, last_sa_index = ~0;
-  u8 numa = rte_socket_id ();
-  u8 is_aead = 0;
-  crypto_worker_main_t *cwm =
-    vec_elt_at_index (dcm->workers_main, thread_idx);
-  struct rte_crypto_op **ops = cwm->ops;
-
-  from = vlib_frame_vector_args (from_frame);
-  n_left_from = from_frame->n_vectors;
-  thread_index = vm->thread_index;
-
-  ret = crypto_alloc_ops (numa, ops, n_left_from);
-  if (ret)
-    {
-      if (is_ip6)
-       vlib_node_increment_counter (vm, dpdk_esp6_encrypt_node.index,
-                                    ESP_ENCRYPT_ERROR_DISCARD, n_left_from);
-      else
-       vlib_node_increment_counter (vm, dpdk_esp4_encrypt_node.index,
-                                    ESP_ENCRYPT_ERROR_DISCARD, n_left_from);
-      /* Discard whole frame */
-      vlib_buffer_free (vm, from, n_left_from);
-      return n_left_from;
-    }
-
-  next_index = ESP_ENCRYPT_NEXT_DROP;
-
-  while (n_left_from > 0)
-    {
-      u32 n_left_to_next;
-
-      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
-      while (n_left_from > 0 && n_left_to_next > 0)
-       {
-         clib_error_t *error;
-         u32 bi0, bi1;
-         vlib_buffer_t *b0, *b1;
-         u32 sa_index0;
-         ip4_and_esp_header_t *ih0, *oh0 = 0;
-         ip6_and_esp_header_t *ih6_0, *oh6_0 = 0;
-         ip4_and_udp_and_esp_header_t *ouh0 = 0;
-         esp_header_t *esp0;
-         esp_footer_t *f0;
-         u8 next_hdr_type;
-         u32 iv_size;
-         u16 orig_sz;
-         u8 trunc_size;
-         u16 rewrite_len;
-         u16 udp_encap_adv = 0;
-         struct rte_mbuf *mb0;
-         struct rte_crypto_op *op;
-         u16 res_idx;
-
-         bi0 = from[0];
-         from += 1;
-         n_left_from -= 1;
-
-         b0 = vlib_get_buffer (vm, bi0);
-         ih0 = vlib_buffer_get_current (b0);
-         mb0 = rte_mbuf_from_vlib_buffer (b0);
-
-         /* ih0/ih6_0 */
-         CLIB_PREFETCH (ih0, sizeof (ih6_0[0]), LOAD);
-         /* f0 */
-         CLIB_PREFETCH (vlib_buffer_get_tail (b0), 20, STORE);
-         /* mb0 */
-         CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
-
-         if (n_left_from > 1)
-           {
-             bi1 = from[1];
-             b1 = vlib_get_buffer (vm, bi1);
-
-             CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, LOAD);
-             CLIB_PREFETCH (b1->data - CLIB_CACHE_LINE_BYTES,
-                            CLIB_CACHE_LINE_BYTES, STORE);
-           }
-
-         op = ops[0];
-         ops += 1;
-         ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
-
-         dpdk_op_priv_t *priv = crypto_op_get_priv (op);
-         /* store bi in op private */
-         priv->bi = bi0;
-         priv->encrypt = 1;
-
-         u16 op_len =
-           sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
-         CLIB_PREFETCH (op, op_len, STORE);
-
-         if (is_tun)
-           {
-             /* we are on a ipsec tunnel's feature arc */
-             vnet_buffer (b0)->ipsec.sad_index =
-               sa_index0 = ipsec_tun_protect_get_sa_out
-               (vnet_buffer (b0)->ip.adj_index[VLIB_TX]);
-           }
-         else
-           sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
-
-         if (sa_index0 != last_sa_index)
-           {
-             sa0 = ipsec_sa_get (sa_index0);
-
-             cipher_alg =
-               vec_elt_at_index (dcm->cipher_algs, sa0->crypto_alg);
-             auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
-
-             is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
-
-             if (is_aead)
-               auth_alg = cipher_alg;
-
-             res_idx = get_resource (cwm, sa0);
-
-             if (PREDICT_FALSE (res_idx == (u16) ~ 0))
-               {
-                 if (is_ip6)
-                   vlib_node_increment_counter (vm,
-                                                dpdk_esp6_encrypt_node.index,
-                                                ESP_ENCRYPT_ERROR_NOSUP, 1);
-                 else
-                   vlib_node_increment_counter (vm,
-                                                dpdk_esp4_encrypt_node.index,
-                                                ESP_ENCRYPT_ERROR_NOSUP, 1);
-                 to_next[0] = bi0;
-                 to_next += 1;
-                 n_left_to_next -= 1;
-                 goto trace;
-               }
-             res = vec_elt_at_index (dcm->resource, res_idx);
-
-             error = crypto_get_session (&session, sa_index0, res, cwm, 1);
-             if (PREDICT_FALSE (error || !session))
-               {
-                 if (is_ip6)
-                   vlib_node_increment_counter (vm,
-                                                dpdk_esp6_encrypt_node.index,
-                                                ESP_ENCRYPT_ERROR_SESSION,
-                                                1);
-                 else
-                   vlib_node_increment_counter (vm,
-                                                dpdk_esp4_encrypt_node.index,
-                                                ESP_ENCRYPT_ERROR_SESSION,
-                                                1);
-                 to_next[0] = bi0;
-                 to_next += 1;
-                 n_left_to_next -= 1;
-                 goto trace;
-               }
-
-             last_sa_index = sa_index0;
-           }
-
-         if (PREDICT_FALSE (esp_seq_advance (sa0)))
-           {
-             if (is_ip6)
-               vlib_node_increment_counter (vm,
-                                            dpdk_esp6_encrypt_node.index,
-                                            ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
-             else
-               vlib_node_increment_counter (vm,
-                                            dpdk_esp4_encrypt_node.index,
-                                            ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
-             //TODO: rekey SA
-             to_next[0] = bi0;
-             to_next += 1;
-             n_left_to_next -= 1;
-             goto trace;
-           }
-
-         orig_sz = b0->current_length;
-
-         /* TODO multi-seg support - total_length_not_including_first_buffer */
-         vlib_increment_combined_counter
-           (&ipsec_sa_counters, thread_index, sa_index0,
-            1, b0->current_length);
-
-         /* Update tunnel interface tx counters */
-         if (is_tun)
-           vlib_increment_combined_counter
-             (vim->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX,
-              thread_index, vnet_buffer (b0)->sw_if_index[VLIB_TX],
-              1, b0->current_length);
-
-         res->ops[res->n_ops] = op;
-         res->bi[res->n_ops] = bi0;
-         res->n_ops += 1;
-
-         dpdk_gcm_cnt_blk *icb = &priv->cb;
-
-         crypto_set_icb (icb, sa0->salt, sa0->seq, sa0->seq_hi);
-
-         iv_size = cipher_alg->iv_len;
-         trunc_size = auth_alg->trunc_size;
-
-         /* if UDP encapsulation is used adjust the address of the IP header */
-         if (ipsec_sa_is_set_UDP_ENCAP (sa0) && !is_ip6)
-           udp_encap_adv = sizeof (udp_header_t);
-
-         if (ipsec_sa_is_set_IS_TUNNEL (sa0))
-           {
-             rewrite_len = 0;
-             if (!ipsec_sa_is_set_IS_TUNNEL_V6 (sa0))  /* ip4 */
-               {
-                 /* in tunnel mode send it back to FIB */
-                 priv->next = DPDK_CRYPTO_INPUT_NEXT_IP4_LOOKUP;
-                 u8 adv = sizeof (ip4_header_t) + udp_encap_adv +
-                   sizeof (esp_header_t) + iv_size;
-                 vlib_buffer_advance (b0, -adv);
-                 oh0 = vlib_buffer_get_current (b0);
-                 ouh0 = vlib_buffer_get_current (b0);
-                 next_hdr_type = (is_ip6 ?
-                                  IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
-                 /*
-                  * oh0->ip4.ip_version_and_header_length = 0x45;
-                  * oh0->ip4.tos = ih0->ip4.tos;
-                  * oh0->ip4.fragment_id = 0;
-                  * oh0->ip4.flags_and_fragment_offset = 0;
-                  */
-                 oh0->ip4.checksum_data_64[0] =
-                   clib_host_to_net_u64 (0x45ULL << 56);
-                 /*
-                  * oh0->ip4.ttl = 254;
-                  * oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
-                  */
-                 oh0->ip4.checksum_data_32[2] =
-                   clib_host_to_net_u32 (0xfe320000);
-
-                 oh0->ip4.src_address.as_u32 =
-                   sa0->tunnel.t_src.ip.ip4.as_u32;
-                 oh0->ip4.dst_address.as_u32 =
-                   sa0->tunnel.t_dst.ip.ip4.as_u32;
-
-                 if (ipsec_sa_is_set_UDP_ENCAP (sa0))
-                   {
-                     oh0->ip4.protocol = IP_PROTOCOL_UDP;
-                     esp0 = &ouh0->esp;
-                   }
-                 else
-                   esp0 = &oh0->esp;
-                 esp0->spi = clib_host_to_net_u32 (sa0->spi);
-                 esp0->seq = clib_host_to_net_u32 (sa0->seq);
-               }
-             else
-               {
-                 /* ip6 */
-                 /* in tunnel mode send it back to FIB */
-                 priv->next = DPDK_CRYPTO_INPUT_NEXT_IP6_LOOKUP;
-
-                 u8 adv =
-                   sizeof (ip6_header_t) + sizeof (esp_header_t) + iv_size;
-                 vlib_buffer_advance (b0, -adv);
-                 ih6_0 = (ip6_and_esp_header_t *) ih0;
-                 oh6_0 = vlib_buffer_get_current (b0);
-
-                 next_hdr_type = (is_ip6 ?
-                                  IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
-
-                 oh6_0->ip6.ip_version_traffic_class_and_flow_label =
-                   ih6_0->ip6.ip_version_traffic_class_and_flow_label;
-
-                 oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
-                 oh6_0->ip6.hop_limit = 254;
-                 oh6_0->ip6.src_address.as_u64[0] =
-                   sa0->tunnel.t_src.ip.ip6.as_u64[0];
-                 oh6_0->ip6.src_address.as_u64[1] =
-                   sa0->tunnel.t_src.ip.ip6.as_u64[1];
-                 oh6_0->ip6.dst_address.as_u64[0] =
-                   sa0->tunnel.t_dst.ip.ip6.as_u64[0];
-                 oh6_0->ip6.dst_address.as_u64[1] =
-                   sa0->tunnel.t_dst.ip.ip6.as_u64[1];
-                 esp0 = &oh6_0->esp;
-                 oh6_0->esp.spi = clib_host_to_net_u32 (sa0->spi);
-                 oh6_0->esp.seq = clib_host_to_net_u32 (sa0->seq);
-               }
-
-             vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-           }
-         else                  /* transport mode */
-           {
-             if (is_tun)
-               {
-                 rewrite_len = 0;
-                 priv->next = DPDK_CRYPTO_INPUT_NEXT_MIDCHAIN;
-               }
-             else
-               {
-                 priv->next = DPDK_CRYPTO_INPUT_NEXT_INTERFACE_OUTPUT;
-                 rewrite_len = vnet_buffer (b0)->ip.save_rewrite_length;
-               }
-             u16 adv = sizeof (esp_header_t) + iv_size + udp_encap_adv;
-             vlib_buffer_advance (b0, -adv - rewrite_len);
-             u8 *src = ((u8 *) ih0) - rewrite_len;
-             u8 *dst = vlib_buffer_get_current (b0);
-             oh0 = vlib_buffer_get_current (b0) + rewrite_len;
-             ouh0 = vlib_buffer_get_current (b0) + rewrite_len;
-
-             if (is_ip6)
-               {
-                 orig_sz -= sizeof (ip6_header_t);
-                 ih6_0 = (ip6_and_esp_header_t *) ih0;
-                 next_hdr_type = ih6_0->ip6.protocol;
-                 memmove (dst, src, rewrite_len + sizeof (ip6_header_t));
-                 oh6_0 = (ip6_and_esp_header_t *) oh0;
-                 oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
-                 esp0 = &oh6_0->esp;
-               }
-             else              /* ipv4 */
-               {
-                 u16 ip_size = ip4_header_bytes (&ih0->ip4);
-                 orig_sz -= ip_size;
-                 next_hdr_type = ih0->ip4.protocol;
-                 memmove (dst, src, rewrite_len + ip_size);
-                 oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
-                 esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
-                 if (ipsec_sa_is_set_UDP_ENCAP (sa0))
-                   {
-                     oh0->ip4.protocol = IP_PROTOCOL_UDP;
-                     esp0 = (esp_header_t *)
-                       (((u8 *) oh0) + ip_size + udp_encap_adv);
-                   }
-                 else
-                   {
-                     oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
-                     esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
-                   }
-               }
-             esp0->spi = clib_host_to_net_u32 (sa0->spi);
-             esp0->seq = clib_host_to_net_u32 (sa0->seq);
-           }
-
-         if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
-           {
-             ouh0->udp.src_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
-             ouh0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
-             ouh0->udp.checksum = 0;
-           }
-         ASSERT (is_pow2 (cipher_alg->boundary));
-         u16 mask = cipher_alg->boundary - 1;
-         u16 pad_payload_len = ((orig_sz + 2) + mask) & ~mask;
-         u8 pad_bytes = pad_payload_len - 2 - orig_sz;
-
-         u8 *padding =
-           vlib_buffer_put_uninit (b0, pad_bytes + 2 + trunc_size);
-
-         /* The extra pad bytes would be overwritten by the digest */
-         if (pad_bytes)
-           clib_memcpy_fast (padding, pad_data, 16);
-
-         f0 = (esp_footer_t *) (padding + pad_bytes);
-         f0->pad_length = pad_bytes;
-         f0->next_header = next_hdr_type;
-
-         if (oh6_0)
-           {
-             u16 len = b0->current_length - sizeof (ip6_header_t);
-             oh6_0->ip6.payload_length =
-               clib_host_to_net_u16 (len - rewrite_len);
-           }
-         else if (oh0)
-           {
-             oh0->ip4.length =
-               clib_host_to_net_u16 (b0->current_length - rewrite_len);
-             oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
-             if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
-               {
-                 ouh0->udp.length =
-                   clib_host_to_net_u16 (clib_net_to_host_u16
-                                         (ouh0->ip4.length) -
-                                         ip4_header_bytes (&ouh0->ip4));
-               }
-           }
-         else                  /* should never happen */
-           clib_warning ("No outer header found for ESP packet");
-
-         b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
-
-         /* mbuf packet starts at ESP header */
-         mb0->data_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
-         mb0->pkt_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
-         mb0->data_off = ((void *) esp0) - mb0->buf_addr;
-
-         u32 cipher_off, cipher_len, auth_len = 0;
-         u32 *aad = NULL;
-
-         u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
-         u64 digest_paddr = mb0->buf_iova + digest - ((u8 *) mb0->buf_addr);
-
-         if (!is_aead && (cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC ||
-                          cipher_alg->alg == RTE_CRYPTO_CIPHER_NULL))
-           {
-             cipher_off = sizeof (esp_header_t);
-             cipher_len = iv_size + pad_payload_len;
-           }
-         else                  /* CTR/GCM */
-           {
-             u32 *esp_iv = (u32 *) (esp0 + 1);
-             esp_iv[0] = sa0->seq;
-             esp_iv[1] = sa0->seq_hi;
-
-             cipher_off = sizeof (esp_header_t) + iv_size;
-             cipher_len = pad_payload_len;
-           }
-
-         if (is_aead)
-           {
-             aad = (u32 *) priv->aad;
-             aad[0] = esp0->spi;
-
-             /* aad[3] should always be 0 */
-             if (PREDICT_FALSE (ipsec_sa_is_set_USE_ESN (sa0)))
-               {
-                 aad[1] = clib_host_to_net_u32 (sa0->seq_hi);
-                 aad[2] = esp0->seq;
-               }
-             else
-               {
-                 aad[1] = esp0->seq;
-                 aad[2] = 0;
-               }
-           }
-         else
-           {
-             auth_len =
-               vlib_buffer_get_tail (b0) - ((u8 *) esp0) - trunc_size;
-             if (ipsec_sa_is_set_USE_ESN (sa0))
-               {
-                 u32 *_digest = (u32 *) digest;
-                 _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
-                 auth_len += 4;
-               }
-           }
-
-         crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
-                          0, auth_len, (u8 *) aad, digest, digest_paddr);
-
-       trace:
-         if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
-           {
-             esp_encrypt_trace_t *tr =
-               vlib_add_trace (vm, node, b0, sizeof (*tr));
-             tr->crypto_alg = sa0->crypto_alg;
-             tr->integ_alg = sa0->integ_alg;
-             u8 *p = vlib_buffer_get_current (b0);
-             if (!ipsec_sa_is_set_IS_TUNNEL (sa0) && !is_tun)
-               p += vnet_buffer (b0)->ip.save_rewrite_length;
-             clib_memcpy_fast (tr->packet_data, p, sizeof (tr->packet_data));
-           }
-       }
-      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-    }
-  if (is_ip6)
-    {
-      vlib_node_increment_counter (vm,
-                                  (is_tun ?
-                                   dpdk_esp6_encrypt_tun_node.index :
-                                   dpdk_esp6_encrypt_node.index),
-                                  ESP_ENCRYPT_ERROR_RX_PKTS,
-                                  from_frame->n_vectors);
-
-      crypto_enqueue_ops (vm, cwm, dpdk_esp6_encrypt_node.index,
-                         ESP_ENCRYPT_ERROR_ENQ_FAIL, numa, 1 /* encrypt */ );
-    }
-  else
-    {
-      vlib_node_increment_counter (vm,
-                                  (is_tun ?
-                                   dpdk_esp4_encrypt_tun_node.index :
-                                   dpdk_esp4_encrypt_node.index),
-                                  ESP_ENCRYPT_ERROR_RX_PKTS,
-                                  from_frame->n_vectors);
-
-      crypto_enqueue_ops (vm, cwm, dpdk_esp4_encrypt_node.index,
-                         ESP_ENCRYPT_ERROR_ENQ_FAIL, numa, 1 /* encrypt */ );
-    }
-
-  crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
-
-  return from_frame->n_vectors;
-}
-
-VLIB_NODE_FN (dpdk_esp4_encrypt_node) (vlib_main_t * vm,
-                                      vlib_node_runtime_t * node,
-                                      vlib_frame_t * from_frame)
-{
-  return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ , 0);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dpdk_esp4_encrypt_node) = {
-  .name = "dpdk-esp4-encrypt",
-  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
-  .vector_size = sizeof (u32),
-  .format_trace = format_esp_encrypt_trace,
-  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
-  .error_strings = esp_encrypt_error_strings,
-  .n_next_nodes = 1,
-  .next_nodes =
-    {
-      [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
-    }
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (dpdk_esp6_encrypt_node) (vlib_main_t * vm,
-                                      vlib_node_runtime_t * node,
-                                      vlib_frame_t * from_frame)
-{
-  return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ , 0);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dpdk_esp6_encrypt_node) = {
-  .name = "dpdk-esp6-encrypt",
-  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
-  .vector_size = sizeof (u32),
-  .format_trace = format_esp_encrypt_trace,
-  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
-  .error_strings = esp_encrypt_error_strings,
-  .n_next_nodes = 1,
-  .next_nodes =
-    {
-      [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
-    }
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (dpdk_esp4_encrypt_tun_node) (vlib_main_t * vm,
-                                          vlib_node_runtime_t * node,
-                                          vlib_frame_t * from_frame)
-{
-  return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ , 1);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dpdk_esp4_encrypt_tun_node) = {
-  .name = "dpdk-esp4-encrypt-tun",
-  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
-  .vector_size = sizeof (u32),
-  .format_trace = format_esp_encrypt_trace,
-  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
-  .error_strings = esp_encrypt_error_strings,
-  .n_next_nodes = 1,
-  .next_nodes =
-    {
-      [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
-    }
-};
-/* *INDENT-ON* */
-
-VLIB_NODE_FN (dpdk_esp6_encrypt_tun_node) (vlib_main_t * vm,
-                                          vlib_node_runtime_t * node,
-                                          vlib_frame_t * from_frame)
-{
-  return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ , 1);
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dpdk_esp6_encrypt_tun_node) = {
-  .name = "dpdk-esp6-encrypt-tun",
-  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
-  .vector_size = sizeof (u32),
-  .format_trace = format_esp_encrypt_trace,
-  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
-  .error_strings = esp_encrypt_error_strings,
-  .n_next_nodes = 1,
-  .next_nodes =
-    {
-      [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
-    }
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */