lisp: Move to plugin

Type: refactor

Change-Id: I54df533a8f863c4e49742903cf2457f18b4fc506
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 506 insertions, 0 deletions

diff --git a/src/plugins/lisp/lisp-gpe/lisp_gpe_api.c b/src/plugins/lisp/lisp-gpe/lisp_gpe_api.c
new file mode 100644
index 00000000000..df90ef54403
--- /dev/null
+++ b/src/plugins/lisp/lisp-gpe/lisp_gpe_api.c
@@ -0,0 +1,506 @@
+/*
+ *------------------------------------------------------------------
+ * lisp_gpe_api.c - lisp_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 <lisp/lisp-gpe/lisp_gpe.h>
+#include <lisp/lisp-gpe/lisp_gpe_adjacency.h>
+#include <lisp/lisp-gpe/lisp_gpe_tunnel.h>
+#include <lisp/lisp-gpe/lisp_gpe_fwd_entry.h>
+#include <lisp/lisp-gpe/lisp_gpe_tenant.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/ip/ip_types_api.h>
+#include <vnet/ethernet/ethernet_types_api.h>
+#include <lisp/lisp-gpe/lisp_types_api.h>
+
+/* define message IDs */
+#include <vnet/format_fns.h>
+#include <lisp/lisp-gpe/lisp_gpe.api_enum.h>
+#include <lisp/lisp-gpe/lisp_gpe.api_types.h>
+
+/**
+ * Base message ID fot the plugin
+ */
+static u32 gpe_base_msg_id;
+#define REPLY_MSG_ID_BASE gpe_base_msg_id
+
+#include <vlibapi/api_helper_macros.h>
+
+static locator_pair_t *
+unformat_gpe_loc_pairs (void *locs, u32 rloc_num)
+{
+  u32 i;
+  locator_pair_t *pairs = 0, pair, *p;
+  vl_api_gpe_locator_t *r;
+
+  for (i = 0; i < rloc_num; i++)
+    {
+      /* local locator */
+      r = &((vl_api_gpe_locator_t *) locs)[i];
+      clib_memset (&pair, 0, sizeof (pair));
+      ip_address_decode2 (&r->addr, &pair.lcl_loc);
+
+      pair.weight = r->weight;
+      vec_add1 (pairs, pair);
+    }
+
+  for (i = rloc_num; i < rloc_num * 2; i++)
+    {
+      /* remote locators */
+      r = &((vl_api_gpe_locator_t *) locs)[i];
+      p = &pairs[i - rloc_num];
+      ip_address_decode2 (&r->addr, &p->rmt_loc);
+    }
+  return pairs;
+}
+
+static void
+  gpe_fwd_entry_path_dump_t_net_to_host
+  (vl_api_gpe_fwd_entry_path_dump_t * mp)
+{
+  mp->fwd_entry_index = clib_net_to_host_u32 (mp->fwd_entry_index);
+}
+
+static void
+lisp_api_set_locator (vl_api_gpe_locator_t * loc,
+		      const ip_address_t * addr, u8 weight)
+{
+  loc->weight = weight;
+  ip_address_encode2 (addr, &loc->addr);
+}
+
+static void
+  vl_api_gpe_fwd_entry_path_dump_t_handler
+  (vl_api_gpe_fwd_entry_path_dump_t * mp)
+{
+  lisp_fwd_path_t *path;
+  vl_api_gpe_fwd_entry_path_details_t *rmp = NULL;
+  lisp_gpe_main_t *lgm = &lisp_gpe_main;
+  vl_api_registration_t *reg;
+  lisp_gpe_fwd_entry_t *lfe;
+
+  gpe_fwd_entry_path_dump_t_net_to_host (mp);
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  if (pool_is_free_index (lgm->lisp_fwd_entry_pool, mp->fwd_entry_index))
+    return;
+
+  lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, mp->fwd_entry_index);
+
+  if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type)
+    return;
+
+  vec_foreach (path, lfe->paths)
+  {
+    rmp = vl_msg_api_alloc (sizeof (*rmp));
+    clib_memset (rmp, 0, sizeof (*rmp));
+    const lisp_gpe_tunnel_t *lgt;
+
+    rmp->_vl_msg_id =
+      clib_host_to_net_u16 (VL_API_GPE_FWD_ENTRY_PATH_DETAILS);
+
+    const lisp_gpe_adjacency_t *ladj =
+      lisp_gpe_adjacency_get (path->lisp_adj);
+    lisp_api_set_locator (&rmp->rmt_loc, &ladj->remote_rloc, path->weight);
+    lgt = lisp_gpe_tunnel_get (ladj->tunnel_index);
+    lisp_api_set_locator (&rmp->lcl_loc, &lgt->key->lcl, path->weight);
+
+    rmp->context = mp->context;
+    vl_api_send_msg (reg, (u8 *) rmp);
+  }
+}
+
+static void
+gpe_fwd_entries_copy (vl_api_gpe_fwd_entry_t * dst,
+		      lisp_api_gpe_fwd_entry_t * src)
+{
+  lisp_api_gpe_fwd_entry_t *e;
+  u32 i = 0;
+
+  vec_foreach (e, src)
+  {
+    clib_memset (&dst[i], 0, sizeof (*dst));
+    dst[i].dp_table = e->dp_table;
+    dst[i].fwd_entry_index = e->fwd_entry_index;
+    dst[i].vni = e->vni;
+    dst[i].action = e->action;
+    switch (fid_addr_type (&e->leid))
+      {
+      case FID_ADDR_IP_PREF:
+	dst[i].leid.type = EID_TYPE_API_PREFIX;
+	dst[i].reid.type = EID_TYPE_API_PREFIX;
+	ip_prefix_encode2 (&fid_addr_ippref (&e->leid),
+			   &dst[i].leid.address.prefix);
+	ip_prefix_encode2 (&fid_addr_ippref (&e->reid),
+			   &dst[i].reid.address.prefix);
+	break;
+      case FID_ADDR_MAC:
+	mac_address_encode ((mac_address_t *) fid_addr_mac (&e->leid),
+			    dst[i].leid.address.mac);
+	mac_address_encode ((mac_address_t *) fid_addr_mac (&e->reid),
+			    dst[i].reid.address.mac);
+	dst[i].leid.type = EID_TYPE_API_MAC;
+	dst[i].reid.type = EID_TYPE_API_MAC;
+	break;
+      default:
+	clib_warning ("unknown fid type %d!", fid_addr_type (&e->leid));
+	break;
+      }
+    i++;
+  }
+}
+
+static void
+gpe_fwd_entries_get_t_net_to_host (vl_api_gpe_fwd_entries_get_t * mp)
+{
+  mp->vni = clib_net_to_host_u32 (mp->vni);
+}
+
+static void
+gpe_entry_t_host_to_net (vl_api_gpe_fwd_entry_t * e)
+{
+  e->fwd_entry_index = clib_host_to_net_u32 (e->fwd_entry_index);
+  e->dp_table = clib_host_to_net_u32 (e->dp_table);
+  e->vni = clib_host_to_net_u32 (e->vni);
+}
+
+static void
+  gpe_fwd_entries_get_reply_t_host_to_net
+  (vl_api_gpe_fwd_entries_get_reply_t * mp)
+{
+  u32 i;
+  vl_api_gpe_fwd_entry_t *e;
+
+  for (i = 0; i < mp->count; i++)
+    {
+      e = &mp->entries[i];
+      gpe_entry_t_host_to_net (e);
+    }
+  mp->count = clib_host_to_net_u32 (mp->count);
+}
+
+static void
+vl_api_gpe_fwd_entry_vnis_get_t_handler (vl_api_gpe_fwd_entry_vnis_get_t * mp)
+{
+  vl_api_gpe_fwd_entry_vnis_get_reply_t *rmp = 0;
+  hash_pair_t *p;
+  u32 i = 0;
+  int rv = 0;
+
+  u32 *vnis = vnet_lisp_gpe_get_fwd_entry_vnis ();
+  u32 size = hash_elts (vnis) * sizeof (u32);
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO4 (VL_API_GPE_FWD_ENTRY_VNIS_GET_REPLY, size,
+  {
+    rmp->count = clib_host_to_net_u32 (hash_elts (vnis));
+    hash_foreach_pair (p, vnis,
+    ({
+      rmp->vnis[i++] = clib_host_to_net_u32 (p->key);
+    }));
+  });
+  /* *INDENT-ON* */
+
+  hash_free (vnis);
+}
+
+static void
+vl_api_gpe_fwd_entries_get_t_handler (vl_api_gpe_fwd_entries_get_t * mp)
+{
+  lisp_api_gpe_fwd_entry_t *e;
+  vl_api_gpe_fwd_entries_get_reply_t *rmp = 0;
+  u32 size = 0;
+  int rv = 0;
+
+  gpe_fwd_entries_get_t_net_to_host (mp);
+
+  e = vnet_lisp_gpe_fwd_entries_get_by_vni (mp->vni);
+  size = vec_len (e) * sizeof (vl_api_gpe_fwd_entry_t);
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO4 (VL_API_GPE_FWD_ENTRIES_GET_REPLY, size,
+  {
+    rmp->count = vec_len (e);
+    gpe_fwd_entries_copy (rmp->entries, e);
+    gpe_fwd_entries_get_reply_t_host_to_net (rmp);
+  });
+  /* *INDENT-ON* */
+
+  vec_free (e);
+}
+
+static void
+gpe_add_del_fwd_entry_t_net_to_host (vl_api_gpe_add_del_fwd_entry_t * mp)
+{
+  mp->vni = clib_net_to_host_u32 (mp->vni);
+  mp->dp_table = clib_net_to_host_u32 (mp->dp_table);
+  mp->loc_num = clib_net_to_host_u32 (mp->loc_num);
+}
+
+static void
+vl_api_gpe_add_del_fwd_entry_t_handler (vl_api_gpe_add_del_fwd_entry_t * mp)
+{
+  vl_api_gpe_add_del_fwd_entry_reply_t *rmp;
+  vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
+  locator_pair_t *pairs = 0;
+  int rv = 0;
+
+  gpe_add_del_fwd_entry_t_net_to_host (mp);
+  clib_memset (a, 0, sizeof (a[0]));
+
+  rv = unformat_lisp_eid_api (&a->rmt_eid, mp->vni, &mp->rmt_eid);
+  rv |= unformat_lisp_eid_api (&a->lcl_eid, mp->vni, &mp->lcl_eid);
+
+  if (mp->loc_num % 2 != 0)
+    {
+      rv = -1;
+      goto send_reply;
+    }
+  pairs = unformat_gpe_loc_pairs (mp->locs, mp->loc_num / 2);
+
+  if (rv)
+    goto send_reply;
+
+  a->is_add = mp->is_add;
+  a->locator_pairs = pairs;
+  a->dp_table = mp->dp_table;
+  a->vni = mp->vni;
+  a->action = mp->action;
+  if (mp->loc_num == 0)
+    a->is_negative = 1;
+
+  rv = vnet_lisp_gpe_add_del_fwd_entry (a, 0);
+  vec_free (pairs);
+send_reply:
+  /* *INDENT-OFF* */
+  REPLY_MACRO2 (VL_API_GPE_ADD_DEL_FWD_ENTRY_REPLY,
+  {
+    rmp->fwd_entry_index = clib_host_to_net_u32 (a->fwd_entry_index);
+  });
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_gpe_enable_disable_t_handler (vl_api_gpe_enable_disable_t * mp)
+{
+  vl_api_gpe_enable_disable_reply_t *rmp;
+  int rv = 0;
+  vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
+
+  a->is_en = mp->is_enable;
+  vnet_lisp_gpe_enable_disable (a);
+
+  REPLY_MACRO (VL_API_GPE_ENABLE_DISABLE_REPLY);
+}
+
+static void
+vl_api_gpe_add_del_iface_t_handler (vl_api_gpe_add_del_iface_t * mp)
+{
+  vl_api_gpe_add_del_iface_reply_t *rmp;
+  int rv = 0;
+  u32 vni, dp_table;
+
+  vni = clib_net_to_host_u32 (mp->vni);
+  dp_table = clib_net_to_host_u32 (mp->dp_table);
+
+  if (mp->is_l2)
+    {
+      if (mp->is_add)
+	{
+	  if (~0 == lisp_gpe_tenant_l2_iface_add_or_lock (vni, dp_table))
+	    rv = 1;
+	}
+      else
+	lisp_gpe_tenant_l2_iface_unlock (vni);
+    }
+  else
+    {
+      if (mp->is_add)
+	{
+	  if (~0 == lisp_gpe_tenant_l3_iface_add_or_lock (vni, dp_table, 1))
+	    rv = 1;
+	}
+      else
+	lisp_gpe_tenant_l3_iface_unlock (vni);
+    }
+
+  REPLY_MACRO (VL_API_GPE_ADD_DEL_IFACE_REPLY);
+}
+
+static void
+vl_api_gpe_set_encap_mode_t_handler (vl_api_gpe_set_encap_mode_t * mp)
+{
+  vl_api_gpe_set_encap_mode_reply_t *rmp;
+  int rv = 0;
+
+  rv = vnet_gpe_set_encap_mode (mp->is_vxlan);
+  REPLY_MACRO (VL_API_GPE_SET_ENCAP_MODE_REPLY);
+}
+
+static void
+vl_api_gpe_get_encap_mode_t_handler (vl_api_gpe_get_encap_mode_t * mp)
+{
+  vl_api_gpe_get_encap_mode_reply_t *rmp;
+  int rv = 0;
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2 (VL_API_GPE_GET_ENCAP_MODE_REPLY,
+  ({
+    rmp->encap_mode = vnet_gpe_get_encap_mode ();
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
+  vl_api_gpe_add_del_native_fwd_rpath_t_handler
+  (vl_api_gpe_add_del_native_fwd_rpath_t * mp)
+{
+  vl_api_gpe_add_del_native_fwd_rpath_reply_t *rmp;
+  vnet_gpe_native_fwd_rpath_args_t _a, *a = &_a;
+  int rv = 0;
+
+  clib_memset (a, 0, sizeof (a[0]));
+
+  if (mp->nh_addr.af)
+    clib_memcpy (&a->rpath.frp_addr.ip6, mp->nh_addr.un.ip6,
+		 sizeof (ip6_address_t));
+  else
+    clib_memcpy (&a->rpath.frp_addr.ip4, mp->nh_addr.un.ip4,
+		 sizeof (ip4_address_t));
+
+  a->is_add = mp->is_add;
+  a->rpath.frp_proto = mp->nh_addr.af ? DPO_PROTO_IP6 : DPO_PROTO_IP4;
+  a->rpath.frp_fib_index =
+    fib_table_find (dpo_proto_to_fib (a->rpath.frp_proto),
+		    clib_net_to_host_u32 (mp->table_id));
+  if (~0 == a->rpath.frp_fib_index)
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto done;
+    }
+
+  a->rpath.frp_sw_if_index = clib_net_to_host_u32 (mp->nh_sw_if_index);
+  a->rpath.frp_weight = 1;
+
+  rv = vnet_gpe_add_del_native_fwd_rpath (a);
+done:
+  REPLY_MACRO (VL_API_GPE_ADD_DEL_NATIVE_FWD_RPATH_REPLY);
+}
+
+static void
+gpe_native_fwd_rpaths_copy (vl_api_gpe_native_fwd_rpath_t * dst,
+			    fib_route_path_t * src)
+{
+  fib_route_path_t *e;
+  fib_table_t *table;
+  u32 i = 0;
+
+  vec_foreach (e, src)
+  {
+    clib_memset (&dst[i], 0, sizeof (*dst));
+    table = fib_table_get (e->frp_fib_index, dpo_proto_to_fib (e->frp_proto));
+    dst[i].fib_index = table->ft_table_id;
+    dst[i].nh_sw_if_index = e->frp_sw_if_index;
+    ip_address_encode (&e->frp_addr, IP46_TYPE_ANY, &dst[i].nh_addr);
+    i++;
+  }
+}
+
+static void
+gpe_native_fwd_rpath_t_host_to_net (vl_api_gpe_native_fwd_rpath_t * e)
+{
+  e->fib_index = clib_host_to_net_u32 (e->fib_index);
+  e->nh_sw_if_index = clib_host_to_net_u32 (e->nh_sw_if_index);
+}
+
+static void
+  gpe_native_fwd_rpaths_get_reply_t_host_to_net
+  (vl_api_gpe_native_fwd_rpaths_get_reply_t * mp)
+{
+  u32 i;
+  vl_api_gpe_native_fwd_rpath_t *e;
+
+  for (i = 0; i < mp->count; i++)
+    {
+      e = &mp->entries[i];
+      gpe_native_fwd_rpath_t_host_to_net (e);
+    }
+  mp->count = clib_host_to_net_u32 (mp->count);
+}
+
+static void
+vl_api_gpe_native_fwd_rpaths_get_t_handler (vl_api_gpe_native_fwd_rpaths_get_t
+					    * mp)
+{
+  lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
+  vl_api_gpe_native_fwd_rpaths_get_reply_t *rmp;
+  u32 size = 0;
+  int rv = 0;
+
+  u8 rpath_index = mp->is_ip4 ? 1 : 0;
+
+  size = vec_len (lgm->native_fwd_rpath[rpath_index])
+    * sizeof (vl_api_gpe_native_fwd_rpath_t);
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO4 (VL_API_GPE_NATIVE_FWD_RPATHS_GET_REPLY, size,
+  {
+    rmp->count = vec_len (lgm->native_fwd_rpath[rpath_index]);
+    gpe_native_fwd_rpaths_copy (rmp->entries,
+				lgm->native_fwd_rpath[rpath_index]);
+    gpe_native_fwd_rpaths_get_reply_t_host_to_net (rmp);
+  });
+  /* *INDENT-ON* */
+}
+
+/*
+ * lisp_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has already mapped shared memory and
+ * added the client registration handlers.
+ * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
+ */
+#include <lisp/lisp-gpe/lisp_gpe.api.c>
+
+static clib_error_t *
+gpe_api_hookup (vlib_main_t * vm)
+{
+  /*
+   * Set up the (msg_name, crc, message-id) table
+   */
+  gpe_base_msg_id = setup_message_id_table ();
+
+  return NULL;
+}
+
+VLIB_API_INIT_FUNCTION (gpe_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */