vxlan: move vxlan-gpe to a plugin

Move vxlan-gpe folder under vnet to the plugin folder,
update cmake configuration and header paths,
and add plugin.c to register plugin.

JIRA: VPP-2059

Type: improvement
Change-Id: I31b6d326276c4aa684fcdcf8443ef349f7816a6d
Signed-off-by: lajoskatona <katonalala@gmail.com>
Signed-off-by: Nicolas PLANEL <nplanel@cisco.com>

1 files changed, 360 insertions, 0 deletions

diff --git a/src/plugins/vxlan-gpe/vxlan_gpe_api.c b/src/plugins/vxlan-gpe/vxlan_gpe_api.c
new file mode 100644
index 00000000000..e82445498e8
--- /dev/null
+++ b/src/plugins/vxlan-gpe/vxlan_gpe_api.c
@@ -0,0 +1,360 @@
+/*
+ *------------------------------------------------------------------
+ * vxlan_gpe_api.c - vxlan_gpe api
+ *
+ * Copyright (c) 2016 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 <vlibmemory/api.h>
+
+#include <vnet/interface.h>
+#include <vnet/api_errno.h>
+#include <vnet/feature/feature.h>
+#include <vxlan-gpe/vxlan_gpe.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/format_fns.h>
+
+#include <vnet/ip/ip_types_api.h>
+#include <vxlan-gpe/vxlan_gpe.api_enum.h>
+#include <vxlan-gpe/vxlan_gpe.api_types.h>
+
+#define REPLY_MSG_ID_BASE msg_id_base
+#include <vlibapi/api_helper_macros.h>
+
+static u16 msg_id_base;
+
+static void
+  vl_api_sw_interface_set_vxlan_gpe_bypass_t_handler
+  (vl_api_sw_interface_set_vxlan_gpe_bypass_t * mp)
+{
+  vl_api_sw_interface_set_vxlan_gpe_bypass_reply_t *rmp;
+  int rv = 0;
+  u32 sw_if_index = ntohl (mp->sw_if_index);
+
+  VALIDATE_SW_IF_INDEX (mp);
+
+  vnet_int_vxlan_gpe_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
+  BAD_SW_IF_INDEX_LABEL;
+
+  REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_GPE_BYPASS_REPLY);
+}
+
+static void
+  vl_api_vxlan_gpe_add_del_tunnel_t_handler
+  (vl_api_vxlan_gpe_add_del_tunnel_t * mp)
+{
+  vl_api_vxlan_gpe_add_del_tunnel_reply_t *rmp;
+  int rv = 0;
+  vnet_vxlan_gpe_add_del_tunnel_args_t _a, *a = &_a;
+  u32 encap_fib_index, decap_fib_index;
+  u8 protocol;
+  uword *p;
+  ip4_main_t *im = &ip4_main;
+  u32 sw_if_index = ~0;
+
+  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;
+    }
+  encap_fib_index = p[0];
+
+  protocol = mp->protocol;
+
+  /* Interpret decap_vrf_id as an opaque if sending to other-than-ip4-input */
+  if (protocol == VXLAN_GPE_INPUT_NEXT_IP4_INPUT)
+    {
+      p = hash_get (im->fib_index_by_table_id, ntohl (mp->decap_vrf_id));
+      if (!p)
+	{
+	  rv = VNET_API_ERROR_NO_SUCH_INNER_FIB;
+	  goto out;
+	}
+      decap_fib_index = p[0];
+    }
+  else
+    {
+      decap_fib_index = ntohl (mp->decap_vrf_id);
+    }
+
+
+  clib_memset (a, 0, sizeof (*a));
+
+  a->is_add = mp->is_add;
+  ip_address_decode (&mp->local, &a->local);
+  ip_address_decode (&mp->remote, &a->remote);
+
+  /* Check src & dst are different */
+  if (ip46_address_is_equal (&a->local, &a->remote))
+    {
+      rv = VNET_API_ERROR_SAME_SRC_DST;
+      goto out;
+    }
+
+  a->is_ip6 = !ip46_address_is_ip4 (&a->local);
+  a->mcast_sw_if_index = ntohl (mp->mcast_sw_if_index);
+  a->encap_fib_index = encap_fib_index;
+  a->decap_fib_index = decap_fib_index;
+  a->protocol = protocol;
+  a->vni = ntohl (mp->vni);
+  rv = vnet_vxlan_gpe_add_del_tunnel (a, &sw_if_index);
+
+out:
+  REPLY_MACRO2(VL_API_VXLAN_GPE_ADD_DEL_TUNNEL_REPLY,
+  ({
+    rmp->sw_if_index = ntohl (sw_if_index);
+  }));
+}
+
+static void
+vl_api_vxlan_gpe_add_del_tunnel_v2_t_handler (
+  vl_api_vxlan_gpe_add_del_tunnel_v2_t *mp)
+{
+  vl_api_vxlan_gpe_add_del_tunnel_v2_reply_t *rmp;
+  int rv = 0;
+  vnet_vxlan_gpe_add_del_tunnel_args_t _a, *a = &_a;
+  u32 encap_fib_index, decap_fib_index;
+  u8 protocol;
+  uword *p;
+  ip4_main_t *im = &ip4_main;
+  u32 sw_if_index = ~0;
+
+  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;
+    }
+  encap_fib_index = p[0];
+
+  protocol = mp->protocol;
+
+  /* Interpret decap_vrf_id as an opaque if sending to other-than-ip4-input */
+  if (protocol == VXLAN_GPE_INPUT_NEXT_IP4_INPUT)
+    {
+      p = hash_get (im->fib_index_by_table_id, ntohl (mp->decap_vrf_id));
+      if (!p)
+	{
+	  rv = VNET_API_ERROR_NO_SUCH_INNER_FIB;
+	  goto out;
+	}
+      decap_fib_index = p[0];
+    }
+  else
+    {
+      decap_fib_index = ntohl (mp->decap_vrf_id);
+    }
+
+  clib_memset (a, 0, sizeof (*a));
+
+  a->is_add = mp->is_add;
+  ip_address_decode (&mp->local, &a->local);
+  ip_address_decode (&mp->remote, &a->remote);
+
+  /* Check src & dst are different */
+  if (ip46_address_is_equal (&a->local, &a->remote))
+    {
+      rv = VNET_API_ERROR_SAME_SRC_DST;
+      goto out;
+    }
+
+  a->local_port = ntohs (mp->local_port);
+  a->remote_port = ntohs (mp->remote_port);
+  a->is_ip6 = !ip46_address_is_ip4 (&a->local);
+  a->mcast_sw_if_index = ntohl (mp->mcast_sw_if_index);
+  a->encap_fib_index = encap_fib_index;
+  a->decap_fib_index = decap_fib_index;
+  a->protocol = protocol;
+  a->vni = ntohl (mp->vni);
+  rv = vnet_vxlan_gpe_add_del_tunnel (a, &sw_if_index);
+
+out:
+  REPLY_MACRO2 (VL_API_VXLAN_GPE_ADD_DEL_TUNNEL_V2_REPLY,
+		({ rmp->sw_if_index = ntohl (sw_if_index); }));
+}
+
+static void send_vxlan_gpe_tunnel_details
+  (vxlan_gpe_tunnel_t * t, vl_api_registration_t * reg, u32 context)
+{
+  vl_api_vxlan_gpe_tunnel_details_t *rmp;
+  ip4_main_t *im4 = &ip4_main;
+  ip6_main_t *im6 = &ip6_main;
+  u8 is_ipv6 = !(t->flags & VXLAN_GPE_TUNNEL_IS_IPV4);
+
+  rmp = vl_msg_api_alloc (sizeof (*rmp));
+  clib_memset (rmp, 0, sizeof (*rmp));
+  rmp->_vl_msg_id =
+    ntohs (REPLY_MSG_ID_BASE + VL_API_VXLAN_GPE_TUNNEL_DETAILS);
+
+  ip_address_encode (&t->local, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
+		     &rmp->local);
+  ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
+		     &rmp->remote);
+
+  if (ip46_address_is_ip4 (&t->local))
+    {
+      rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
+      rmp->decap_vrf_id = htonl (im4->fibs[t->decap_fib_index].ft_table_id);
+    }
+  else
+    {
+      rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
+      rmp->decap_vrf_id = htonl (im6->fibs[t->decap_fib_index].ft_table_id);
+    }
+  rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
+  rmp->vni = htonl (t->vni);
+  rmp->protocol = t->protocol;
+  rmp->sw_if_index = htonl (t->sw_if_index);
+  rmp->context = context;
+
+  vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void vl_api_vxlan_gpe_tunnel_dump_t_handler
+  (vl_api_vxlan_gpe_tunnel_dump_t * mp)
+{
+  vl_api_registration_t *reg;
+  vxlan_gpe_main_t *vgm = &vxlan_gpe_main;
+  vxlan_gpe_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)
+    {
+      pool_foreach (t, vgm->tunnels)
+	{
+	  send_vxlan_gpe_tunnel_details (t, reg, mp->context);
+	}
+    }
+  else
+    {
+      if ((sw_if_index >= vec_len (vgm->tunnel_index_by_sw_if_index)) ||
+	  (~0 == vgm->tunnel_index_by_sw_if_index[sw_if_index]))
+	{
+	  return;
+	}
+      t = &vgm->tunnels[vgm->tunnel_index_by_sw_if_index[sw_if_index]];
+      send_vxlan_gpe_tunnel_details (t, reg, mp->context);
+    }
+}
+
+static void
+send_vxlan_gpe_tunnel_v2_details (vxlan_gpe_tunnel_t *t,
+				  vl_api_registration_t *reg, u32 context)
+{
+  vl_api_vxlan_gpe_tunnel_v2_details_t *rmp;
+  ip4_main_t *im4 = &ip4_main;
+  ip6_main_t *im6 = &ip6_main;
+  u8 is_ipv6 = !(t->flags & VXLAN_GPE_TUNNEL_IS_IPV4);
+
+  rmp = vl_msg_api_alloc (sizeof (*rmp));
+  clib_memset (rmp, 0, sizeof (*rmp));
+  rmp->_vl_msg_id =
+    ntohs (REPLY_MSG_ID_BASE + VL_API_VXLAN_GPE_TUNNEL_V2_DETAILS);
+
+  ip_address_encode (&t->local, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
+		     &rmp->local);
+  ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
+		     &rmp->remote);
+  rmp->local_port = htons (t->local_port);
+  rmp->remote_port = htons (t->remote_port);
+
+  if (ip46_address_is_ip4 (&t->local))
+    {
+      rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id);
+      rmp->decap_vrf_id = htonl (im4->fibs[t->decap_fib_index].ft_table_id);
+    }
+  else
+    {
+      rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id);
+      rmp->decap_vrf_id = htonl (im6->fibs[t->decap_fib_index].ft_table_id);
+    }
+  rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
+  rmp->vni = htonl (t->vni);
+  rmp->protocol = t->protocol;
+  rmp->sw_if_index = htonl (t->sw_if_index);
+  rmp->context = context;
+
+  vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+vl_api_vxlan_gpe_tunnel_v2_dump_t_handler (
+  vl_api_vxlan_gpe_tunnel_v2_dump_t *mp)
+{
+  vl_api_registration_t *reg;
+  vxlan_gpe_main_t *vgm = &vxlan_gpe_main;
+  vxlan_gpe_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)
+    {
+      pool_foreach (t, vgm->tunnels)
+	{
+	  send_vxlan_gpe_tunnel_v2_details (t, reg, mp->context);
+	}
+    }
+  else
+    {
+      if ((sw_if_index >= vec_len (vgm->tunnel_index_by_sw_if_index)) ||
+	  (~0 == vgm->tunnel_index_by_sw_if_index[sw_if_index]))
+	{
+	  return;
+	}
+      t = &vgm->tunnels[vgm->tunnel_index_by_sw_if_index[sw_if_index]];
+      send_vxlan_gpe_tunnel_v2_details (t, reg, mp->context);
+    }
+}
+
+#include <vxlan-gpe/vxlan_gpe.api.c>
+
+static clib_error_t *
+vxlan_gpe_api_hookup (vlib_main_t * vm)
+{
+  api_main_t *am = vlibapi_get_main ();
+
+  vl_api_increase_msg_trace_size (am, VL_API_VXLAN_GPE_ADD_DEL_TUNNEL,
+				  17 * sizeof (u32));
+
+  /*
+   * Set up the (msg_name, crc, message-id) table
+   */
+  msg_id_base = setup_message_id_table ();
+
+  return 0;
+}
+
+VLIB_API_INIT_FUNCTION (vxlan_gpe_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */