2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
17 * @brief LISP sub-interfaces.
20 #include <vnet/lisp-gpe/lisp_gpe_sub_interface.h>
21 #include <vnet/fib/fib_table.h>
22 #include <vnet/interface.h>
25 * @brief Pool of all l3-sub-interfaces
27 static lisp_gpe_sub_interface_t *lisp_gpe_sub_interface_pool;
30 * A DB of all LISP L3 sub-interfaces. The key is:{VNI,l-RLOC}
32 static uword *lisp_gpe_sub_interfaces;
35 * A DB of all VNET L3 sub-interfaces. The key is:{VNI,l-RLOC}
36 * Used in the data-plane for interface lookup on decap.
38 uword *lisp_gpe_sub_interfaces_sw_if_index;
41 * The next available sub-interface ID. FIXME
43 static u32 lisp_gpe_sub_interface_id;
47 lisp_gpe_sub_interface_db_find (const ip_address_t * lrloc, u32 vni)
51 lisp_gpe_sub_interface_key_t key = {
53 .vni = clib_host_to_net_u32 (vni),
56 p = hash_get_mem (lisp_gpe_sub_interfaces, &key);
59 return (INDEX_INVALID);
65 lisp_gpe_sub_interface_db_insert (const lisp_gpe_sub_interface_t * l3s)
67 hash_set_mem (lisp_gpe_sub_interfaces,
68 &l3s->key, l3s - lisp_gpe_sub_interface_pool);
69 hash_set_mem (lisp_gpe_sub_interfaces_sw_if_index,
70 &l3s->key, l3s->sw_if_index);
74 lisp_gpe_sub_interface_db_remove (const lisp_gpe_sub_interface_t * l3s)
76 hash_unset_mem (lisp_gpe_sub_interfaces, &l3s->key);
77 hash_unset_mem (lisp_gpe_sub_interfaces_sw_if_index, &l3s->key);
80 lisp_gpe_sub_interface_t *
81 lisp_gpe_sub_interface_get_i (index_t l3si)
83 return (pool_elt_at_index (lisp_gpe_sub_interface_pool, l3si));
87 lisp_gpe_sub_interface_set_table (u32 sw_if_index, u32 table_id)
89 fib_node_index_t fib_index;
91 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id);
92 ASSERT (FIB_NODE_INDEX_INVALID != fib_index);
94 vec_validate (ip4_main.fib_index_by_sw_if_index, sw_if_index);
95 ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
96 // FIXME. enable When we get an adj
97 ip4_sw_interface_enable_disable (sw_if_index, 1);
99 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, table_id);
100 ASSERT (FIB_NODE_INDEX_INVALID != fib_index);
102 vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index);
103 ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
104 // FIXME. enable When we get an adj
105 ip6_sw_interface_enable_disable (sw_if_index, 1);
109 lisp_gpe_sub_interface_unset_table (u32 sw_if_index, u32 table_id)
111 ip4_main.fib_index_by_sw_if_index[sw_if_index] = 0;
112 ip4_sw_interface_enable_disable (sw_if_index, 0);
114 ip6_main.fib_index_by_sw_if_index[sw_if_index] = 0;
115 ip6_sw_interface_enable_disable (sw_if_index, 0);
119 lisp_gpe_sub_interface_find_or_create_and_lock (const ip_address_t * lrloc,
120 u32 overlay_table_id, u32 vni)
122 lisp_gpe_sub_interface_t *l3s;
123 lisp_gpe_main_t *lgm = &lisp_gpe_main;
126 l3si = lisp_gpe_sub_interface_db_find (lrloc, vni);
128 if (INDEX_INVALID == l3si)
130 vnet_hw_interface_t *hi;
136 * find the main interface from the VNI
138 p = hash_get (lgm->l3_ifaces.sw_if_index_by_vni, vni);
141 return (INDEX_INVALID);
143 hi = vnet_get_hw_interface (vnet_get_main (), p[0]);
146 return (INDEX_INVALID);
148 vnet_sw_interface_t sub_itf_template = {
149 .type = VNET_SW_INTERFACE_TYPE_SUB,
150 .sup_sw_if_index = hi->sw_if_index,
151 .sub.id = lisp_gpe_sub_interface_id++,
154 error = vnet_create_sw_interface (vnet_get_main (),
155 &sub_itf_template, &sub_sw_if_index);
158 return (INDEX_INVALID);
160 pool_get (lisp_gpe_sub_interface_pool, l3s);
161 memset (l3s, 0, sizeof (*l3s));
162 l3s->key = clib_mem_alloc (sizeof (*l3s->key));
163 memset (l3s->key, 0, sizeof (*l3s->key));
165 l3s->key->local_rloc = *lrloc;
166 l3s->key->vni = clib_host_to_net_u32 (vni);
167 l3s->main_sw_if_index = hi->sw_if_index;
168 l3s->sw_if_index = sub_sw_if_index;
169 l3s->eid_table_id = overlay_table_id;
171 l3si = (l3s - lisp_gpe_sub_interface_pool);
173 lisp_gpe_sub_interface_set_table (l3s->sw_if_index, l3s->eid_table_id);
174 vnet_sw_interface_set_flags (vnet_get_main (),
176 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
178 lisp_gpe_sub_interface_db_insert (l3s);
182 l3s = lisp_gpe_sub_interface_get_i (l3si);
191 lisp_gpe_sub_interface_unlock (index_t l3si)
193 lisp_gpe_sub_interface_t *l3s;
195 l3s = lisp_gpe_sub_interface_get_i (l3si);
201 lisp_gpe_sub_interface_unset_table (l3s->sw_if_index,
204 vnet_sw_interface_set_flags (vnet_get_main (), l3s->sw_if_index, 0);
205 vnet_delete_sub_interface (l3s->sw_if_index);
207 lisp_gpe_sub_interface_db_remove (l3s);
209 clib_mem_free (l3s->key);
210 pool_put (lisp_gpe_sub_interface_pool, l3s);
214 const lisp_gpe_sub_interface_t *
215 lisp_gpe_sub_interface_get (index_t l3si)
217 return (lisp_gpe_sub_interface_get_i (l3si));
221 format_lisp_gpe_sub_interface (u8 * s, va_list ap)
223 lisp_gpe_sub_interface_t *l3s = va_arg (ap, lisp_gpe_sub_interface_t *);
224 vnet_main_t *vnm = vnet_get_main ();
226 s = format (s, "%=16U",
227 format_vnet_sw_interface_name,
228 vnm, vnet_get_sw_interface (vnm, l3s->sw_if_index));
229 s = format (s, "%=10d", clib_net_to_host_u32 (l3s->key->vni));
230 s = format (s, "%=12d", l3s->sw_if_index);
231 s = format (s, "%U", format_ip_address, &l3s->key->local_rloc);
236 /** CLI command to show LISP-GPE interfaces. */
237 static clib_error_t *
238 lisp_gpe_sub_interface_show (vlib_main_t * vm,
239 unformat_input_t * input,
240 vlib_cli_command_t * cmd)
242 lisp_gpe_sub_interface_t *l3s;
244 vlib_cli_output (vm, "%=16s%=10s%=12s%s", "Name", "VNI", "SW IF Index",
248 pool_foreach (l3s, lisp_gpe_sub_interface_pool,
250 vlib_cli_output (vm, "%U", format_lisp_gpe_sub_interface, l3s);
258 VLIB_CLI_COMMAND (lisp_gpe_sub_interface_command) = {
259 .path = "show lisp gpe sub-interface",
260 .short_help = "show lisp gpe sub-interface",
261 .function = lisp_gpe_sub_interface_show,
265 static clib_error_t *
266 lisp_gpe_sub_interface_module_init (vlib_main_t * vm)
268 lisp_gpe_sub_interfaces =
270 sizeof (lisp_gpe_sub_interface_key_t), sizeof (uword));
271 lisp_gpe_sub_interfaces_sw_if_index =
273 sizeof (lisp_gpe_sub_interface_key_t), sizeof (uword));
278 VLIB_INIT_FUNCTION (lisp_gpe_sub_interface_module_init);
281 * fd.io coding-style-patch-verification: ON
284 * eval: (c-set-style "gnu")