geneve: Move to plugin

Type: refactor

Change-Id: I613bf4d6517591351b212bfe6c8d93abf235f5dc
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 265 insertions, 0 deletions

diff --git a/src/plugins/geneve/geneve_api.c b/src/plugins/geneve/geneve_api.c
new file mode 100644
index 00000000000..f6b9afda7d5
--- /dev/null
+++ b/src/plugins/geneve/geneve_api.c
@@ -0,0 +1,265 @@
+/*
+ * Copyright (c) 2017 SUSE LLC.
+ * 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 <vlibmemory/api.h>
+
+#include <vnet/interface.h>
+#include <vnet/api_errno.h>
+#include <vnet/feature/feature.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/ip/ip_types_api.h>
+
+#include <geneve/geneve.h>
+
+/* define message IDs */
+#include <vnet/format_fns.h>
+#include <geneve/geneve.api_enum.h>
+#include <geneve/geneve.api_types.h>
+
+/**
+ * Base message ID fot the plugin
+ */
+static u32 geneve_base_msg_id;
+#define REPLY_MSG_ID_BASE geneve_base_msg_id
+
+#include <vlibapi/api_helper_macros.h>
+
+static void
+  vl_api_sw_interface_set_geneve_bypass_t_handler
+  (vl_api_sw_interface_set_geneve_bypass_t * mp)
+{
+  vl_api_sw_interface_set_geneve_bypass_reply_t *rmp;
+  int rv = 0;
+  u32 sw_if_index = ntohl (mp->sw_if_index);
+
+  VALIDATE_SW_IF_INDEX (mp);
+
+  vnet_int_geneve_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
+  BAD_SW_IF_INDEX_LABEL;
+
+  REPLY_MACRO (VL_API_SW_INTERFACE_SET_GENEVE_BYPASS_REPLY);
+}
+
+static void vl_api_geneve_add_del_tunnel_t_handler
+  (vl_api_geneve_add_del_tunnel_t * mp)
+{
+  vl_api_geneve_add_del_tunnel_reply_t *rmp;
+  int rv = 0;
+  ip4_main_t *im = &ip4_main;
+
+  uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
+  if (!p)
+    {
+      rv = VNET_API_ERROR_NO_SUCH_FIB;
+      goto out;
+    }
+
+  vnet_geneve_add_del_tunnel_args_t a = {
+    .is_add = mp->is_add,
+    .is_ip6 = mp->remote_address.af,
+    .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
+    .encap_fib_index = p[0],
+    .decap_next_index = ntohl (mp->decap_next_index),
+    .vni = ntohl (mp->vni),
+  };
+
+  ip_address_decode (&mp->remote_address, &a.remote);
+  ip_address_decode (&mp->local_address, &a.local);
+
+  /* Check src & dst are different */
+  if (ip46_address_cmp (&a.remote, &a.local) == 0)
+    {
+      rv = VNET_API_ERROR_SAME_SRC_DST;
+      goto out;
+    }
+  if (ip46_address_is_multicast (&a.remote) &&
+      !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
+    {
+      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
+      goto out;
+    }
+
+  u32 sw_if_index = ~0;
+  rv = vnet_geneve_add_del_tunnel (&a, &sw_if_index);
+
+out:
+  /* *INDENT-OFF* */
+  REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL_REPLY,
+  ({
+    rmp->sw_if_index = ntohl (sw_if_index);
+  }));
+  /* *INDENT-ON* */
+}
+
+static void vl_api_geneve_add_del_tunnel2_t_handler
+  (vl_api_geneve_add_del_tunnel2_t * mp)
+{
+  vl_api_geneve_add_del_tunnel2_reply_t *rmp;
+  int rv = 0;
+  ip4_main_t *im = &ip4_main;
+
+  uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
+  if (!p)
+    {
+      rv = VNET_API_ERROR_NO_SUCH_FIB;
+      goto out;
+    }
+
+  vnet_geneve_add_del_tunnel_args_t a = {
+    .is_add = mp->is_add,
+    .is_ip6 = mp->remote_address.af,
+    .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
+    .encap_fib_index = p[0],
+    .decap_next_index = ntohl (mp->decap_next_index),
+    .vni = ntohl (mp->vni),
+    .l3_mode = mp->l3_mode,
+  };
+
+  ip_address_decode (&mp->remote_address, &a.remote);
+  ip_address_decode (&mp->local_address, &a.local);
+
+  /* Check src & dst are different */
+  if (ip46_address_cmp (&a.remote, &a.local) == 0)
+    {
+      rv = VNET_API_ERROR_SAME_SRC_DST;
+      goto out;
+    }
+  if (ip46_address_is_multicast (&a.remote) &&
+      !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
+    {
+      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
+      goto out;
+    }
+
+  u32 sw_if_index = ~0;
+  rv = vnet_geneve_add_del_tunnel (&a, &sw_if_index);
+
+out:
+  /* *INDENT-OFF* */
+  REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL2_REPLY,
+  ({
+    rmp->sw_if_index = ntohl (sw_if_index);
+  }));
+  /* *INDENT-ON* */
+}
+
+static void send_geneve_tunnel_details
+  (geneve_tunnel_t * t, vl_api_registration_t * reg, u32 context)
+{
+  vl_api_geneve_tunnel_details_t *rmp;
+  ip4_main_t *im4 = &ip4_main;
+  ip6_main_t *im6 = &ip6_main;
+  u8 is_ipv6 = !ip46_address_is_ip4 (&t->remote);
+
+  rmp = vl_msg_api_alloc (sizeof (*rmp));
+  clib_memset (rmp, 0, sizeof (*rmp));
+  rmp->_vl_msg_id = ntohs (VL_API_GENEVE_TUNNEL_DETAILS + REPLY_MSG_ID_BASE);
+  ip_address_encode (&t->local, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
+		     &rmp->src_address);
+  ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
+		     &rmp->dst_address);
+  rmp->encap_vrf_id =
+    htonl (is_ipv6 ? im6->fibs[t->encap_fib_index].
+	   ft_table_id : im4->fibs[t->encap_fib_index].ft_table_id);
+
+  rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
+  rmp->vni = htonl (t->vni);
+  rmp->decap_next_index = htonl (t->decap_next_index);
+  rmp->sw_if_index = htonl (t->sw_if_index);
+  rmp->context = context;
+
+  vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void vl_api_geneve_tunnel_dump_t_handler
+  (vl_api_geneve_tunnel_dump_t * mp)
+{
+  vl_api_registration_t *reg;
+  geneve_main_t *vxm = &geneve_main;
+  geneve_tunnel_t *t;
+  u32 sw_if_index;
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  sw_if_index = ntohl (mp->sw_if_index);
+
+  if (~0 == sw_if_index)
+    {
+      /* *INDENT-OFF* */
+      pool_foreach (t, vxm->tunnels,
+      ({
+        send_geneve_tunnel_details(t, reg, mp->context);
+      }));
+      /* *INDENT-ON* */
+    }
+  else
+    {
+      if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
+	  (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
+	{
+	  return;
+	}
+      t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
+      send_geneve_tunnel_details (t, reg, mp->context);
+    }
+}
+
+/*
+ * geneve_api_hookup
+ * Add geneve's API message handlers to the table.
+ */
+/* API definitions */
+#include <vnet/format_fns.h>
+#include <geneve/geneve.api.c>
+
+static clib_error_t *
+geneve_api_hookup (vlib_main_t * vm)
+{
+  api_main_t *am = vlibapi_get_main ();
+
+  /*
+   * Set up the (msg_name, crc, message-id) table
+   */
+  geneve_base_msg_id = setup_message_id_table ();
+
+  am->api_trace_cfg[VL_API_GENEVE_ADD_DEL_TUNNEL + REPLY_MSG_ID_BASE].size +=
+    16 * sizeof (u32);
+
+  return 0;
+}
+
+VLIB_API_INIT_FUNCTION (geneve_api_hookup);
+
+#include <vlib/unix/plugin.h>
+#include <vpp/app/version.h>
+
+/* *INDENT-OFF* */
+VLIB_PLUGIN_REGISTER () = {
+    .version = VPP_BUILD_VER,
+    .description = "GENEVE Tunnels",
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */