This is the first commit of the hicn projectv19.01

Change-Id: I6f2544ad9b9f8891c88cc4bcce3cf19bd3cc863f
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/hicn-plugin/src/faces/udp/dpo_udp.c b/hicn-plugin/src/faces/udp/dpo_udp.c
new file mode 100755
index 000000000..e58fc9788
--- /dev/null
+++ b/hicn-plugin/src/faces/udp/dpo_udp.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2017-2019 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 "dpo_udp.h"
+
+#include <vnet/ip/format.h>
+#include <vnet/adj/adj.h>
+#include <vnet/vnet.h>
+#include <vlib/vlib.h>
+
+const static char *const hicn_face_ip4udp_nodes[] = {
+  "hicn-face-encap-udp4",
+  "hicn-face-decap-udp4",
+  "hicn-iface-decap-udp4",
+  "hicn-iface-encap-udp4",
+  NULL,
+};
+
+const static char *const hicn_face_ip6udp_nodes[] = {
+  "hicn-face-encap-udp6",
+  "hicn-face-decap-udp6",
+  "hicn-iface-decap-udp6",
+  "hicn-iface-encap-udp6",
+  NULL,
+};
+
+const static char *const *const hicn_ipudp_nodes[DPO_PROTO_NUM] = {
+  [DPO_PROTO_IP4] = hicn_face_ip4udp_nodes,
+  [DPO_PROTO_IP6] = hicn_face_ip6udp_nodes
+};
+
+
+const static dpo_vft_t hicn_dpoi_udp_vft = {
+  .dv_lock = hicn_face_lock,
+  .dv_unlock = hicn_face_unlock,
+  .dv_format = format_hicn_face_udp,
+};
+
+/* Must be executed after all the strategy nodes are created */
+void
+hicn_dpo_udp_module_init (void)
+{
+  mhash_init (&hicn_face_udp_hashtb, sizeof (hicn_face_id_t) /* value */ ,
+	      sizeof (hicn_face_udp_key_t) /* key */ );
+
+  /*
+   * How much useful is the following registration?
+   * So far it seems that we need it only for setting the dpo_type.
+   */
+  hicn_face_udp_type =
+    dpo_register_new_type (&hicn_dpoi_udp_vft, hicn_ipudp_nodes);
+}
+
+
+/* Here udp ports are in host order, move them to network order to do the lookup */
+int
+hicn_dpo_udp4_create (dpo_id_t * dpo,
+		      const ip4_address_t * src_ip,
+		      const ip4_address_t * dst_ip,
+		      u16 src_port, u16 dst_port,
+		      u32 sw_if,
+		      adj_index_t ip_adj,
+		      u32 node_index,
+		      hicn_face_flags_t flags, hicn_face_id_t * face_id)
+{
+  u16 net_src_port = clib_host_to_net_u16 (src_port);
+  u16 net_dst_port = clib_host_to_net_u16 (dst_port);
+  hicn_face_t *face = hicn_face_udp4_get (src_ip, dst_ip, src_port, dst_port);
+
+  u8 is_appface;
+  /* ip_csum_t sum0; */
+
+  if (face != NULL)
+    return HICN_ERROR_FACE_ALREADY_CREATED;
+
+  hicn_dpo_udp4_add_and_lock (dpo, src_ip, dst_ip, net_src_port, net_dst_port,
+			      node_index, &is_appface);
+
+  face = hicn_dpoi_get_from_idx (dpo->dpoi_index);
+
+  hicn_face_udp_t *udp_face = (hicn_face_udp_t *) face->data;
+
+  udp_face->hdrs.ip4.ip.checksum =
+    ip4_header_checksum (&(udp_face->hdrs.ip4.ip));
+
+  face->shared.flags = flags;
+  face->shared.adj = ip_adj;
+  face->shared.sw_if = sw_if;
+  *face_id = hicn_dpoi_get_index (face);
+
+  return HICN_ERROR_NONE;
+}
+
+
+int
+hicn_dpo_udp6_create (dpo_id_t * dpo,
+		      const ip6_address_t * src_ip,
+		      const ip6_address_t * dst_ip,
+		      u16 src_port, u16 dst_port,
+		      u32 sw_if,
+		      adj_index_t ip_adj,
+		      u32 node_index,
+		      hicn_face_flags_t flags, hicn_face_id_t * face_id)
+{
+  u16 net_src_port = clib_host_to_net_u16 (src_port);
+  u16 net_dst_port = clib_host_to_net_u16 (dst_port);
+  hicn_face_t *face =
+    hicn_face_udp6_get (src_ip, dst_ip, net_src_port, net_dst_port);
+  u8 is_appface;
+
+  if (face != NULL)
+    return HICN_ERROR_FACE_ALREADY_CREATED;
+
+  hicn_dpo_udp6_add_and_lock (dpo, src_ip, dst_ip, net_src_port, net_dst_port,
+			      node_index, &is_appface);
+
+  face = hicn_dpoi_get_from_idx (dpo->dpoi_index);
+
+  face->shared.flags = flags;
+  face->shared.adj = ip_adj;
+  face->shared.sw_if = sw_if;
+  *face_id = hicn_dpoi_get_index (face);
+
+  return HICN_ERROR_NONE;
+}
+
+void
+hicn_dpo_udp_create_from_face (hicn_face_t * face, dpo_id_t * dpo,
+			       u16 dpoi_next_node)
+{
+  hicn_face_id_t face_dpoi_id = hicn_dpoi_get_index (face);
+  hicn_face_udp_t *face_udp = (hicn_face_udp_t *) face->data;
+  u8 version =
+    (face_udp->hdrs.ip4.ip.ip_version_and_header_length & 0xf0) >> 4;
+  dpo_set (dpo, face->shared.face_type,
+	   version == 4 ? DPO_PROTO_IP4 : DPO_PROTO_IP6, face_dpoi_id);
+  dpo->dpoi_next_node = dpoi_next_node;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */