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_tenant.h>
21 #include <vnet/lisp-gpe/lisp_gpe_sub_interface.h>
22 #include <vnet/fib/fib_table.h>
23 #include <vnet/interface.h>
26 * @brief Pool of all l3-sub-interfaces
28 static lisp_gpe_sub_interface_t *lisp_gpe_sub_interface_pool;
31 * A DB of all LISP L3 sub-interfaces. The key is:{VNI,l-RLOC}
33 static uword *lisp_gpe_sub_interfaces;
36 * A DB of all VNET L3 sub-interfaces. The key is:{VNI,l-RLOC}
37 * Used in the data-plane for interface lookup on decap.
39 uword *lisp_gpe_sub_interfaces_sw_if_index;
42 * The next available sub-interface ID. FIXME
44 static u32 lisp_gpe_sub_interface_id;
48 lisp_gpe_sub_interface_db_find (const ip_address_t * lrloc, u32 vni)
52 lisp_gpe_sub_interface_key_t key;
54 memset (&key, 0, sizeof (key));
55 ip_address_copy (&key.local_rloc, lrloc);
57 p = hash_get_mem (lisp_gpe_sub_interfaces, &key);
60 return (INDEX_INVALID);
66 lisp_gpe_sub_interface_db_insert (const lisp_gpe_sub_interface_t * l3s)
68 hash_set_mem (lisp_gpe_sub_interfaces,
69 l3s->key, l3s - lisp_gpe_sub_interface_pool);
70 hash_set_mem (lisp_gpe_sub_interfaces_sw_if_index,
71 l3s->key, l3s->sw_if_index);
75 lisp_gpe_sub_interface_db_remove (const lisp_gpe_sub_interface_t * l3s)
77 hash_unset_mem (lisp_gpe_sub_interfaces, l3s->key);
78 hash_unset_mem (lisp_gpe_sub_interfaces_sw_if_index, l3s->key);
81 lisp_gpe_sub_interface_t *
82 lisp_gpe_sub_interface_get_i (index_t l3si)
84 return (pool_elt_at_index (lisp_gpe_sub_interface_pool, l3si));
88 lisp_gpe_sub_interface_set_table (u32 sw_if_index, u32 table_id)
90 fib_node_index_t fib_index;
92 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id,
94 ASSERT (FIB_NODE_INDEX_INVALID != fib_index);
96 vec_validate (ip4_main.fib_index_by_sw_if_index, sw_if_index);
97 ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
99 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, table_id,
101 ASSERT (FIB_NODE_INDEX_INVALID != fib_index);
103 vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index);
104 ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
108 lisp_gpe_sub_interface_unset_table (u32 sw_if_index, u32 table_id)
110 fib_table_unlock (ip4_main.fib_index_by_sw_if_index[sw_if_index],
111 FIB_PROTOCOL_IP4, FIB_SOURCE_LISP);
112 ip4_main.fib_index_by_sw_if_index[sw_if_index] = 0;
113 ip4_sw_interface_enable_disable (sw_if_index, 0);
115 fib_table_unlock (ip6_main.fib_index_by_sw_if_index[sw_if_index],
116 FIB_PROTOCOL_IP6, FIB_SOURCE_LISP);
117 ip6_main.fib_index_by_sw_if_index[sw_if_index] = 0;
118 ip6_sw_interface_enable_disable (sw_if_index, 0);
122 lisp_gpe_sub_interface_find_or_create_and_lock (const ip_address_t * lrloc,
123 u32 overlay_table_id, u32 vni)
125 lisp_gpe_sub_interface_t *l3s;
128 l3si = lisp_gpe_sub_interface_db_find (lrloc, vni);
130 if (INDEX_INVALID == l3si)
132 u32 main_sw_if_index, sub_sw_if_index;
135 * find the main interface from the VNI
138 lisp_gpe_tenant_l3_iface_add_or_lock (vni, overlay_table_id,
139 1 /* with_default_route */ );
141 vnet_sw_interface_t sub_itf_template = {
142 .type = VNET_SW_INTERFACE_TYPE_SUB,
143 .flood_class = VNET_FLOOD_CLASS_NORMAL,
144 .sup_sw_if_index = main_sw_if_index,
145 .sub.id = lisp_gpe_sub_interface_id++,
148 if (NULL != vnet_create_sw_interface (vnet_get_main (),
151 return (INDEX_INVALID);
153 pool_get (lisp_gpe_sub_interface_pool, l3s);
154 memset (l3s, 0, sizeof (*l3s));
155 l3s->key = clib_mem_alloc (sizeof (*l3s->key));
156 memset (l3s->key, 0, sizeof (*l3s->key));
158 ip_address_copy (&l3s->key->local_rloc, lrloc);
160 l3s->main_sw_if_index = main_sw_if_index;
161 l3s->sw_if_index = sub_sw_if_index;
162 l3s->eid_table_id = overlay_table_id;
164 l3si = (l3s - lisp_gpe_sub_interface_pool);
166 // FIXME. enable When we get an adj
167 ip6_sw_interface_enable_disable (l3s->sw_if_index, 1);
168 ip4_sw_interface_enable_disable (l3s->sw_if_index, 1);
170 vnet_sw_interface_set_flags (vnet_get_main (),
172 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
174 lisp_gpe_sub_interface_db_insert (l3s);
178 l3s = lisp_gpe_sub_interface_get_i (l3si);
179 l3s->eid_table_id = overlay_table_id;
182 lisp_gpe_sub_interface_set_table (l3s->sw_if_index, l3s->eid_table_id);
189 lisp_gpe_sub_interface_unlock (index_t l3si)
191 lisp_gpe_sub_interface_t *l3s;
193 l3s = lisp_gpe_sub_interface_get_i (l3si);
195 ASSERT (0 != l3s->locks);
200 lisp_gpe_sub_interface_unset_table (l3s->sw_if_index,
203 lisp_gpe_tenant_l3_iface_unlock (l3s->key->vni);
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, "%=8d", l3s->key->vni);
230 s = format (s, "%=15d", 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%=8s%=15s%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 gpe sub-interface",
260 .short_help = "show 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")