Reorganize source tree to use single autotools instance

[vpp.git] / src / vnet / ipsec / ipsec_if_out.c

diff --git a/src/vnet/ipsec/ipsec_if_out.c b/src/vnet/ipsec/ipsec_if_out.c
new file mode 100644 (file)
index 0000000..8f06282
--- /dev/null
+++ b/src/vnet/ipsec/ipsec_if_out.c
@@ -0,0 +1,161 @@
+/*
+ * ipsec_if_out.c : IPSec interface output node
+ *
+ * Copyright (c) 2015 Cisco 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>
+
+#if DPDK_CRYPTO==1
+#define ESP_NODE "dpdk-esp-encrypt"
+#else
+#define ESP_NODE "esp-encrypt"
+#endif
+
+/* Statistics (not really errors) */
+#define foreach_ipsec_if_output_error    \
+_(TX, "good packets transmitted")
+
+static char *ipsec_if_output_error_strings[] = {
+#define _(sym,string) string,
+  foreach_ipsec_if_output_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) IPSEC_IF_OUTPUT_ERROR_##sym,
+  foreach_ipsec_if_output_error
+#undef _
+    IPSEC_IF_OUTPUT_N_ERROR,
+} ipsec_if_output_error_t;
+
+typedef enum
+{
+  IPSEC_IF_OUTPUT_NEXT_ESP_ENCRYPT,
+  IPSEC_IF_OUTPUT_NEXT_DROP,
+  IPSEC_IF_OUTPUT_N_NEXT,
+} ipsec_if_output_next_t;
+
+typedef struct
+{
+  u32 spi;
+  u32 seq;
+} ipsec_if_output_trace_t;
+
+
+u8 *
+format_ipsec_if_output_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 *);
+  ipsec_if_output_trace_t *t = va_arg (*args, ipsec_if_output_trace_t *);
+
+  s = format (s, "IPSec: spi %u seq %u", t->spi, t->seq);
+  return s;
+}
+
+static uword
+ipsec_if_output_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
+                        vlib_frame_t * from_frame)
+{
+  ipsec_main_t *im = &ipsec_main;
+  vnet_main_t *vnm = im->vnet_main;
+  u32 *from, *to_next = 0, next_index;
+  u32 n_left_from, sw_if_index0;
+
+  from = vlib_frame_vector_args (from_frame);
+  n_left_from = from_frame->n_vectors;
+  next_index = node->cached_next_index;
+
+  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)
+       {
+         u32 bi0, next0;
+         vlib_buffer_t *b0;
+         ipsec_tunnel_if_t *t0;
+         vnet_hw_interface_t *hi0;
+
+         bi0 = to_next[0] = from[0];
+         from += 1;
+         n_left_from -= 1;
+         to_next += 1;
+         n_left_to_next -= 1;
+         b0 = vlib_get_buffer (vm, bi0);
+         sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+         hi0 = vnet_get_sup_hw_interface (vnm, sw_if_index0);
+         t0 = pool_elt_at_index (im->tunnel_interfaces, hi0->dev_instance);
+         vnet_buffer (b0)->ipsec.sad_index = t0->output_sa_index;
+         next0 = IPSEC_IF_OUTPUT_NEXT_ESP_ENCRYPT;
+
+         if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+           {
+             ipsec_if_output_trace_t *tr =
+               vlib_add_trace (vm, node, b0, sizeof (*tr));
+             ipsec_sa_t *sa0 =
+               pool_elt_at_index (im->sad, t0->output_sa_index);
+             tr->spi = sa0->spi;
+             tr->seq = sa0->seq;
+           }
+
+         vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+                                          n_left_to_next, bi0, next0);
+       }
+      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+    }
+
+  vlib_node_increment_counter (vm, ipsec_if_output_node.index,
+                              IPSEC_IF_OUTPUT_ERROR_TX,
+                              from_frame->n_vectors);
+
+  return from_frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ipsec_if_output_node) = {
+  .function = ipsec_if_output_node_fn,
+  .name = "ipsec-if-output",
+  .vector_size = sizeof (u32),
+  .format_trace = format_ipsec_if_output_trace,
+  .type = VLIB_NODE_TYPE_INTERNAL,
+
+  .n_errors = ARRAY_LEN(ipsec_if_output_error_strings),
+  .error_strings = ipsec_if_output_error_strings,
+
+  .n_next_nodes = IPSEC_IF_OUTPUT_N_NEXT,
+
+  .next_nodes = {
+        [IPSEC_IF_OUTPUT_NEXT_ESP_ENCRYPT] = ESP_NODE,
+        [IPSEC_IF_OUTPUT_NEXT_DROP] = "error-drop",
+  },
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (ipsec_if_output_node, ipsec_if_output_node_fn)
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */