dpdk-ipsec-nodes multiarch: nodes are formatted in VLIB_NODE_FN style
[vpp.git] / src / plugins / dpdk / ipsec / esp_decrypt.c
index 85bfb64..1ed3518 100644 (file)
@@ -62,7 +62,8 @@ static char * esp_decrypt_error_strings[] = {
 #undef _
 };
 
-vlib_node_registration_t dpdk_esp_decrypt_node;
+extern vlib_node_registration_t dpdk_esp4_decrypt_node;
+extern vlib_node_registration_t dpdk_esp6_decrypt_node;
 
 typedef struct {
   ipsec_crypto_alg_t crypto_alg;
@@ -87,10 +88,11 @@ static u8 * format_esp_decrypt_trace (u8 * s, va_list * args)
   return s;
 }
 
-static uword
-dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
+always_inline uword
+dpdk_esp_decrypt_inline (vlib_main_t * vm,
             vlib_node_runtime_t * node,
-            vlib_frame_t * from_frame)
+            vlib_frame_t * from_frame,
+            int is_ip6)
 {
   u32 n_left_from, *from, *to_next, next_index;
   ipsec_main_t *im = &ipsec_main;
@@ -113,7 +115,11 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
   ret = crypto_alloc_ops (numa, ops, n_left_from);
   if (ret)
     {
-      vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
+      if(is_ip6)
+       vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                  ESP_DECRYPT_ERROR_DISCARD, 1);
+      else
+       vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
                                   ESP_DECRYPT_ERROR_DISCARD, 1);
       /* Discard whole frame */
       return n_left_from;
@@ -179,7 +185,11 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
              if (PREDICT_FALSE (res_idx == (u16) ~0))
                {
                  clib_warning ("unsupported SA by thread index %u", thread_idx);
-                 vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
+                 if(is_ip6)
+                   vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                              ESP_DECRYPT_ERROR_NOSUP, 1);
+                 else
+                   vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
                                               ESP_DECRYPT_ERROR_NOSUP, 1);
                  to_next[0] = bi0;
                  to_next += 1;
@@ -192,7 +202,11 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
              if (PREDICT_FALSE (error || !session))
                {
                  clib_warning ("failed to get crypto session");
-                 vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
+                 if(is_ip6)
+                   vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                              ESP_DECRYPT_ERROR_SESSION, 1);
+                 else
+                   vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
                                               ESP_DECRYPT_ERROR_SESSION, 1);
                  to_next[0] = bi0;
                  to_next += 1;
@@ -218,7 +232,11 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
              if (PREDICT_FALSE (rv))
                {
                  clib_warning ("failed anti-replay check");
-                 vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
+                 if(is_ip6)
+                   vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                              ESP_DECRYPT_ERROR_REPLAY, 1);
+                 else
+                   vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
                                               ESP_DECRYPT_ERROR_REPLAY, 1);
                  to_next[0] = bi0;
                  to_next += 1;
@@ -227,7 +245,10 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
                }
            }
 
-         priv->next = DPDK_CRYPTO_INPUT_NEXT_DECRYPT_POST;
+         if(is_ip6)
+           priv->next = DPDK_CRYPTO_INPUT_NEXT_DECRYPT6_POST;
+         else
+           priv->next = DPDK_CRYPTO_INPUT_NEXT_DECRYPT4_POST;
 
          /* FIXME multi-seg */
          sa0->total_data_size += b0->current_length;
@@ -254,7 +275,11 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
            {
              clib_warning ("payload %u not multiple of %d\n",
                            payload_len, cipher_alg->boundary);
-             vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
+             if(is_ip6)
+               vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                          ESP_DECRYPT_ERROR_BAD_LEN, 1);
+             else
+               vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
                                           ESP_DECRYPT_ERROR_BAD_LEN, 1);
              res->n_ops -= 1;
              to_next[0] = bi0;
@@ -279,7 +304,7 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
            mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
 
          if (!is_aead && cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC)
-           clib_memcpy(icb, iv, 16);
+              clib_memcpy_fast(icb, iv, 16);
          else /* CTR/GCM */
            {
              u32 *_iv = (u32 *) iv;
@@ -291,7 +316,7 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
             {
               aad = priv->aad;
              u32 * _aad = (u32 *) aad;
-              clib_memcpy (aad, esp0, 8);
+              clib_memcpy_fast (aad, esp0, 8);
 
              /* _aad[3] should always be 0 */
               if (PREDICT_FALSE (sa0->use_esn))
@@ -305,7 +330,7 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
 
               if (sa0->use_esn)
                 {
-                  clib_memcpy (priv->icv, digest, trunc_size);
+                  clib_memcpy_fast (priv->icv, digest, trunc_size);
                  u32 *_digest = (u32 *) digest;
                   _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
                  auth_len += sizeof(sa0->seq_hi);
@@ -324,29 +349,46 @@ trace:
              esp_decrypt_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
              tr->crypto_alg = sa0->crypto_alg;
              tr->integ_alg = sa0->integ_alg;
-             clib_memcpy (tr->packet_data, vlib_buffer_get_current (b0),
+             clib_memcpy_fast (tr->packet_data, vlib_buffer_get_current (b0),
                           sizeof (esp_header_t));
            }
        }
       vlib_put_next_frame (vm, node, next_index, n_left_to_next);
     }
 
-  vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
-                              ESP_DECRYPT_ERROR_RX_PKTS,
-                              from_frame->n_vectors);
+  if(is_ip6){
+    vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                ESP_DECRYPT_ERROR_RX_PKTS,
+                                from_frame->n_vectors);
+
+    crypto_enqueue_ops (vm, cwm, 0, dpdk_esp6_decrypt_node.index,
+                     ESP_DECRYPT_ERROR_ENQ_FAIL, numa);
+  }
+  else
+    {
+    vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
+                                ESP_DECRYPT_ERROR_RX_PKTS,
+                                from_frame->n_vectors);
 
-  crypto_enqueue_ops (vm, cwm, 0, dpdk_esp_decrypt_node.index,
+    crypto_enqueue_ops (vm, cwm, 0, dpdk_esp4_decrypt_node.index,
                      ESP_DECRYPT_ERROR_ENQ_FAIL, numa);
+    }
 
   crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
 
   return from_frame->n_vectors;
 }
 
+VLIB_NODE_FN(dpdk_esp4_decrypt_node) (vlib_main_t * vm,
+            vlib_node_runtime_t * node,
+            vlib_frame_t * from_frame)
+{
+  return dpdk_esp_decrypt_inline(vm, node, from_frame, 0 /*is_ip6*/);
+}
+
 /* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dpdk_esp_decrypt_node) = {
-  .function = dpdk_esp_decrypt_node_fn,
-  .name = "dpdk-esp-decrypt",
+VLIB_REGISTER_NODE (dpdk_esp4_decrypt_node) = {
+  .name = "dpdk-esp4-decrypt",
   .vector_size = sizeof (u32),
   .format_trace = format_esp_decrypt_trace,
   .type = VLIB_NODE_TYPE_INTERNAL,
@@ -363,7 +405,31 @@ VLIB_REGISTER_NODE (dpdk_esp_decrypt_node) = {
 };
 /* *INDENT-ON* */
 
-VLIB_NODE_FUNCTION_MULTIARCH (dpdk_esp_decrypt_node, dpdk_esp_decrypt_node_fn)
+VLIB_NODE_FN(dpdk_esp6_decrypt_node) (vlib_main_t * vm,
+            vlib_node_runtime_t * node,
+            vlib_frame_t * from_frame)
+{
+  return dpdk_esp_decrypt_inline(vm, node, from_frame, 1 /*is_ip6*/);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (dpdk_esp6_decrypt_node) = {
+  .name = "dpdk-esp6-decrypt",
+  .vector_size = sizeof (u32),
+  .format_trace = format_esp_decrypt_trace,
+  .type = VLIB_NODE_TYPE_INTERNAL,
+
+  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
+  .error_strings = esp_decrypt_error_strings,
+
+  .n_next_nodes = ESP_DECRYPT_N_NEXT,
+  .next_nodes = {
+#define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
+    foreach_esp_decrypt_next
+#undef _
+  },
+};
+/* *INDENT-ON* */
 
 /*
  * Decrypt Post Node
@@ -385,7 +451,8 @@ static char * esp_decrypt_post_error_strings[] = {
 #undef _
 };
 
-vlib_node_registration_t dpdk_esp_decrypt_post_node;
+extern vlib_node_registration_t dpdk_esp4_decrypt_post_node;
+extern vlib_node_registration_t dpdk_esp6_decrypt_post_node;
 
 static u8 * format_esp_decrypt_post_trace (u8 * s, va_list * args)
 {
@@ -407,10 +474,11 @@ static u8 * format_esp_decrypt_post_trace (u8 * s, va_list * args)
   return s;
 }
 
-static uword
-dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
+always_inline uword
+dpdk_esp_decrypt_post_inline (vlib_main_t * vm,
             vlib_node_runtime_t * node,
-            vlib_frame_t * from_frame)
+            vlib_frame_t * from_frame,
+           int is_ip6)
 {
   u32 n_left_from, *from, *to_next = 0, next_index;
   ipsec_sa_t * sa0;
@@ -439,6 +507,7 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
          crypto_alg_t *cipher_alg, *auth_alg;
          esp_header_t *esp0;
          u8 trunc_size, is_aead;
+         u16 udp_encap_adv = 0;
 
          next0 = ESP_DECRYPT_NEXT_DROP;
 
@@ -476,7 +545,19 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
                esp_replay_advance(sa0, seq);
            }
 
-          ih4 = (ip4_header_t *) (b0->data + vnet_buffer(b0)->l3_hdr_offset);
+         /* if UDP encapsulation is used adjust the address of the IP header */
+          if (sa0->udp_encap && (b0->flags & VNET_BUFFER_F_IS_IP4))
+            {
+              udp_encap_adv = sizeof (udp_header_t);
+            }
+
+          if (b0->flags & VNET_BUFFER_F_IS_IP4)
+            ih4 = (ip4_header_t *)
+               ((u8 *) esp0 - udp_encap_adv - sizeof (ip4_header_t));
+          else
+            ih4 =
+               (ip4_header_t *) ((u8 *) esp0 - sizeof (ip6_header_t));
+
          vlib_buffer_advance (b0, sizeof (esp_header_t) + iv_size);
 
          b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
@@ -503,7 +584,12 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
              else
                {
                  clib_warning("next header: 0x%x", f0->next_header);
-                 vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
+                 if(is_ip6)
+                   vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                              ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
+                                              1);
+                 else
+                   vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
                                               ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
                                               1);
                  goto trace;
@@ -513,15 +599,17 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
            {
              if ((ih4->ip_version_and_header_length & 0xF0) == 0x40)
                {
-                 u16 ih4_len = ip4_header_bytes (ih4);
-                 vlib_buffer_advance (b0, - ih4_len);
-                 oh4 = vlib_buffer_get_current (b0);
-                 memmove(oh4, ih4, ih4_len);
-
-                 next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
-                 oh4->protocol = f0->next_header;
-                 oh4->length = clib_host_to_net_u16 (b0->current_length);
-                 oh4->checksum = ip4_header_checksum(oh4);
+                  u16 ih4_len = ip4_header_bytes (ih4);
+                  vlib_buffer_advance (b0, - ih4_len - udp_encap_adv);
+                  next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
+                 if (!sa0->udp_encap)
+                   {
+                         oh4 = vlib_buffer_get_current (b0);
+                         memmove(oh4, ih4, ih4_len);
+                         oh4->protocol = f0->next_header;
+                         oh4->length = clib_host_to_net_u16 (b0->current_length);
+                         oh4->checksum = ip4_header_checksum(oh4);
+                   }
                }
              else if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
                {
@@ -538,7 +626,12 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
              else
                {
                  clib_warning("next header: 0x%x", f0->next_header);
-                 vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
+                 if(is_ip6)
+                   vlib_node_increment_counter (vm, dpdk_esp6_decrypt_node.index,
+                                              ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
+                                              1);
+                 else
+                   vlib_node_increment_counter (vm, dpdk_esp4_decrypt_node.index,
                                               ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
                                               1);
                  goto trace;
@@ -554,7 +647,7 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
              tr->crypto_alg = sa0->crypto_alg;
              tr->integ_alg = sa0->integ_alg;
              ih4 = vlib_buffer_get_current (b0);
-             clib_memcpy (tr->packet_data, ih4, sizeof (ip6_header_t));
+             clib_memcpy_fast (tr->packet_data, ih4, sizeof (ip6_header_t));
            }
 
          vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
@@ -563,17 +656,52 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
       vlib_put_next_frame (vm, node, next_index, n_left_to_next);
     }
 
-  vlib_node_increment_counter (vm, dpdk_esp_decrypt_post_node.index,
+  if(is_ip6)
+    vlib_node_increment_counter (vm, dpdk_esp6_decrypt_post_node.index,
+                              ESP_DECRYPT_POST_ERROR_PKTS,
+                              from_frame->n_vectors);
+  else
+    vlib_node_increment_counter (vm, dpdk_esp4_decrypt_post_node.index,
                               ESP_DECRYPT_POST_ERROR_PKTS,
                               from_frame->n_vectors);
 
   return from_frame->n_vectors;
 }
 
+VLIB_NODE_FN(dpdk_esp4_decrypt_post_node) (vlib_main_t * vm,
+            vlib_node_runtime_t * node,
+            vlib_frame_t * from_frame)
+{return dpdk_esp_decrypt_post_inline(vm, node, from_frame, 0/*is_ip6*/);}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (dpdk_esp4_decrypt_post_node) = {
+  .name = "dpdk-esp4-decrypt-post",
+  .vector_size = sizeof (u32),
+  .format_trace = format_esp_decrypt_post_trace,
+  .type = VLIB_NODE_TYPE_INTERNAL,
+
+  .n_errors = ARRAY_LEN(esp_decrypt_post_error_strings),
+  .error_strings = esp_decrypt_post_error_strings,
+
+  .n_next_nodes = ESP_DECRYPT_N_NEXT,
+  .next_nodes = {
+#define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
+    foreach_esp_decrypt_next
+#undef _
+  },
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FN(dpdk_esp6_decrypt_post_node) (vlib_main_t * vm,
+            vlib_node_runtime_t * node,
+            vlib_frame_t * from_frame)
+{
+  return dpdk_esp_decrypt_post_inline(vm, node, from_frame, 0/*is_ip6*/);
+}
+
 /* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dpdk_esp_decrypt_post_node) = {
-  .function = dpdk_esp_decrypt_post_node_fn,
-  .name = "dpdk-esp-decrypt-post",
+VLIB_REGISTER_NODE (dpdk_esp6_decrypt_post_node) = {
+  .name = "dpdk-esp6-decrypt-post",
   .vector_size = sizeof (u32),
   .format_trace = format_esp_decrypt_post_trace,
   .type = VLIB_NODE_TYPE_INTERNAL,
@@ -590,4 +718,3 @@ VLIB_REGISTER_NODE (dpdk_esp_decrypt_post_node) = {
 };
 /* *INDENT-ON* */
 
-VLIB_NODE_FUNCTION_MULTIARCH (dpdk_esp_decrypt_post_node, dpdk_esp_decrypt_post_node_fn)