+++ /dev/null
-/*
- * 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.
- */
-/**
- * @file
- * @brief LISP sub-interfaces.
- *
- */
-#include <vnet/lisp-gpe/lisp_gpe_tenant.h>
-#include <vnet/lisp-gpe/lisp_gpe_sub_interface.h>
-#include <vnet/fib/fib_table.h>
-#include <vnet/interface.h>
-
-/**
- * @brief Pool of all l3-sub-interfaces
- */
-static lisp_gpe_sub_interface_t *lisp_gpe_sub_interface_pool;
-
-/**
- * A DB of all LISP L3 sub-interfaces. The key is:{VNI,l-RLOC}
- */
-static uword *lisp_gpe_sub_interfaces;
-
-/**
- * A DB of all VNET L3 sub-interfaces. The key is:{VNI,l-RLOC}
- * Used in the data-plane for interface lookup on decap.
- */
-uword *lisp_gpe_sub_interfaces_sw_if_index;
-
-/**
- * The next available sub-interface ID. FIXME
- */
-static u32 lisp_gpe_sub_interface_id;
-
-
-static index_t
-lisp_gpe_sub_interface_db_find (const ip_address_t * lrloc, u32 vni)
-{
- uword *p;
-
- lisp_gpe_sub_interface_key_t key;
-
- clib_memset (&key, 0, sizeof (key));
- ip_address_copy (&key.local_rloc, lrloc);
- key.vni = vni;
- p = hash_get_mem (lisp_gpe_sub_interfaces, &key);
-
- if (NULL == p)
- return (INDEX_INVALID);
- else
- return (p[0]);
-}
-
-static void
-lisp_gpe_sub_interface_db_insert (const lisp_gpe_sub_interface_t * l3s)
-{
- hash_set_mem (lisp_gpe_sub_interfaces,
- l3s->key, l3s - lisp_gpe_sub_interface_pool);
- hash_set_mem (lisp_gpe_sub_interfaces_sw_if_index,
- l3s->key, l3s->sw_if_index);
-}
-
-static void
-lisp_gpe_sub_interface_db_remove (const lisp_gpe_sub_interface_t * l3s)
-{
- hash_unset_mem (lisp_gpe_sub_interfaces, l3s->key);
- hash_unset_mem (lisp_gpe_sub_interfaces_sw_if_index, l3s->key);
-}
-
-lisp_gpe_sub_interface_t *
-lisp_gpe_sub_interface_get_i (index_t l3si)
-{
- return (pool_elt_at_index (lisp_gpe_sub_interface_pool, l3si));
-}
-
-static void
-lisp_gpe_sub_interface_set_table (u32 sw_if_index, u32 table_id)
-{
- fib_node_index_t fib_index;
-
- fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id,
- FIB_SOURCE_LISP);
- ASSERT (FIB_NODE_INDEX_INVALID != fib_index);
-
- vec_validate (ip4_main.fib_index_by_sw_if_index, sw_if_index);
- ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
-
- fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, table_id,
- FIB_SOURCE_LISP);
- ASSERT (FIB_NODE_INDEX_INVALID != fib_index);
-
- vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index);
- ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
-}
-
-static void
-lisp_gpe_sub_interface_unset_table (u32 sw_if_index, u32 table_id)
-{
- fib_table_unlock (ip4_main.fib_index_by_sw_if_index[sw_if_index],
- FIB_PROTOCOL_IP4, FIB_SOURCE_LISP);
- ip4_main.fib_index_by_sw_if_index[sw_if_index] = 0;
- ip4_sw_interface_enable_disable (sw_if_index, 0);
-
- fib_table_unlock (ip6_main.fib_index_by_sw_if_index[sw_if_index],
- FIB_PROTOCOL_IP6, FIB_SOURCE_LISP);
- ip6_main.fib_index_by_sw_if_index[sw_if_index] = 0;
- ip6_sw_interface_enable_disable (sw_if_index, 0);
-}
-
-index_t
-lisp_gpe_sub_interface_find_or_create_and_lock (const ip_address_t * lrloc,
- u32 overlay_table_id, u32 vni)
-{
- lisp_gpe_sub_interface_t *l3s;
- index_t l3si;
-
- l3si = lisp_gpe_sub_interface_db_find (lrloc, vni);
-
- if (INDEX_INVALID == l3si)
- {
- u32 main_sw_if_index, sub_sw_if_index;
-
- /*
- * find the main interface from the VNI
- */
- main_sw_if_index =
- lisp_gpe_tenant_l3_iface_add_or_lock (vni, overlay_table_id,
- 1 /* with_default_route */ );
-
- vnet_sw_interface_t sub_itf_template = {
- .type = VNET_SW_INTERFACE_TYPE_SUB,
- .flood_class = VNET_FLOOD_CLASS_NORMAL,
- .sup_sw_if_index = main_sw_if_index,
- .sub.id = lisp_gpe_sub_interface_id++,
- };
-
- if (NULL != vnet_create_sw_interface (vnet_get_main (),
- &sub_itf_template,
- &sub_sw_if_index))
- return (INDEX_INVALID);
-
- pool_get (lisp_gpe_sub_interface_pool, l3s);
- clib_memset (l3s, 0, sizeof (*l3s));
- l3s->key = clib_mem_alloc (sizeof (*l3s->key));
- clib_memset (l3s->key, 0, sizeof (*l3s->key));
-
- ip_address_copy (&l3s->key->local_rloc, lrloc);
- l3s->key->vni = vni;
- l3s->main_sw_if_index = main_sw_if_index;
- l3s->sw_if_index = sub_sw_if_index;
- l3s->eid_table_id = overlay_table_id;
-
- l3si = (l3s - lisp_gpe_sub_interface_pool);
-
- // FIXME. enable When we get an adj
- ip6_sw_interface_enable_disable (l3s->sw_if_index, 1);
- ip4_sw_interface_enable_disable (l3s->sw_if_index, 1);
-
- vnet_sw_interface_set_flags (vnet_get_main (),
- l3s->sw_if_index,
- VNET_SW_INTERFACE_FLAG_ADMIN_UP);
-
- lisp_gpe_sub_interface_db_insert (l3s);
- }
- else
- {
- l3s = lisp_gpe_sub_interface_get_i (l3si);
- l3s->eid_table_id = overlay_table_id;
- }
-
- lisp_gpe_sub_interface_set_table (l3s->sw_if_index, l3s->eid_table_id);
- l3s->locks++;
-
- return (l3si);
-}
-
-void
-lisp_gpe_sub_interface_unlock (index_t l3si)
-{
- lisp_gpe_sub_interface_t *l3s;
-
- l3s = lisp_gpe_sub_interface_get_i (l3si);
-
- ASSERT (0 != l3s->locks);
- l3s->locks--;
-
- if (0 == l3s->locks)
- {
- lisp_gpe_sub_interface_unset_table (l3s->sw_if_index,
- l3s->eid_table_id);
-
- lisp_gpe_tenant_l3_iface_unlock (l3s->key->vni);
- vnet_sw_interface_set_flags (vnet_get_main (), l3s->sw_if_index, 0);
- vnet_delete_sub_interface (l3s->sw_if_index);
-
- lisp_gpe_sub_interface_db_remove (l3s);
-
- clib_mem_free (l3s->key);
- pool_put (lisp_gpe_sub_interface_pool, l3s);
- }
-}
-
-const lisp_gpe_sub_interface_t *
-lisp_gpe_sub_interface_get (index_t l3si)
-{
- return (lisp_gpe_sub_interface_get_i (l3si));
-}
-
-u8 *
-format_lisp_gpe_sub_interface (u8 * s, va_list * ap)
-{
- lisp_gpe_sub_interface_t *l3s = va_arg (*ap, lisp_gpe_sub_interface_t *);
- vnet_main_t *vnm = vnet_get_main ();
-
- s = format (s, "%-16U",
- format_vnet_sw_interface_name,
- vnm, vnet_get_sw_interface (vnm, l3s->sw_if_index));
- s = format (s, "%=8d", l3s->key->vni);
- s = format (s, "%=15d", l3s->sw_if_index);
- s = format (s, "%U", format_ip_address, &l3s->key->local_rloc);
-
- return (s);
-}
-
-/** CLI command to show LISP-GPE interfaces. */
-static clib_error_t *
-lisp_gpe_sub_interface_show (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- lisp_gpe_sub_interface_t *l3s;
-
- vlib_cli_output (vm, "%-16s%=8s%=15s%s", "Name", "VNI", "sw_if_index",
- "local RLOC");
-
- /* *INDENT-OFF* */
- pool_foreach (l3s, lisp_gpe_sub_interface_pool,
- ({
- vlib_cli_output (vm, "%U", format_lisp_gpe_sub_interface, l3s);
- }));
- /* *INDENT-ON* */
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (lisp_gpe_sub_interface_command) = {
- .path = "show gpe sub-interface",
- .short_help = "show gpe sub-interface",
- .function = lisp_gpe_sub_interface_show,
-};
-/* *INDENT-ON* */
-
-static clib_error_t *
-lisp_gpe_sub_interface_module_init (vlib_main_t * vm)
-{
- lisp_gpe_sub_interfaces =
- hash_create_mem (0,
- sizeof (lisp_gpe_sub_interface_key_t), sizeof (uword));
- lisp_gpe_sub_interfaces_sw_if_index =
- hash_create_mem (0,
- sizeof (lisp_gpe_sub_interface_key_t), sizeof (uword));
-
- return (NULL);
-}
-
-VLIB_INIT_FUNCTION (lisp_gpe_sub_interface_module_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
Code Review / vpp.git / blobdiff