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 Common utility functions for IPv4, IPv6 and L2 LISP-GPE tunnels.
21 #include <vnet/lisp-gpe/lisp_gpe.h>
22 #include <vnet/lisp-gpe/lisp_gpe_fwd_entry.h>
23 #include <vnet/lisp-gpe/lisp_gpe_adjacency.h>
24 #include <vnet/lisp-gpe/lisp_gpe_tenant.h>
26 /** LISP-GPE global state */
27 lisp_gpe_main_t lisp_gpe_main;
30 /** CLI command to add/del forwarding entry. */
32 lisp_gpe_add_del_fwd_entry_command_fn (vlib_main_t * vm,
33 unformat_input_t * input,
34 vlib_cli_command_t * cmd)
36 unformat_input_t _line_input, *line_input = &_line_input;
38 ip_address_t lloc, rloc;
39 clib_error_t *error = 0;
40 gid_address_t _reid, *reid = &_reid, _leid, *leid = &_leid;
41 u8 reid_set = 0, leid_set = 0, is_negative = 0, dp_table_set = 0,
43 u32 vni = 0, dp_table = 0, action = ~0, w;
44 locator_pair_t pair, *pairs = 0;
47 memset (leid, 0, sizeof (*leid));
48 memset (reid, 0, sizeof (*reid));
50 /* Get a line of input. */
51 if (!unformat_user (input, unformat_line_input, line_input))
54 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
56 if (unformat (line_input, "del"))
58 else if (unformat (line_input, "add"))
60 else if (unformat (line_input, "leid %U", unformat_gid_address, leid))
64 else if (unformat (line_input, "reid %U", unformat_gid_address, reid))
68 else if (unformat (line_input, "vni %u", &vni))
70 gid_address_vni (leid) = vni;
71 gid_address_vni (reid) = vni;
74 else if (unformat (line_input, "vrf %u", &dp_table))
78 else if (unformat (line_input, "bd %u", &dp_table))
82 else if (unformat (line_input, "negative action %U",
83 unformat_negative_mapping_action, &action))
87 else if (unformat (line_input, "loc-pair %U %U w %d",
88 unformat_ip_address, &lloc,
89 unformat_ip_address, &rloc, &w))
94 vec_add1 (pairs, pair);
98 error = unformat_parse_error (line_input);
99 vlib_cli_output (vm, "parse error: '%U'",
100 format_unformat_error, line_input);
105 if (!vni_set || !dp_table_set)
107 vlib_cli_output (vm, "vni and vrf/bd must be set!");
113 vlib_cli_output (vm, "remote eid must be set!");
121 vlib_cli_output (vm, "no action set for negative tunnel!");
127 if (vec_len (pairs) == 0)
129 vlib_cli_output (vm, "expected ip4/ip6 locators");
136 /* if leid not set, make sure it's the same AFI like reid */
137 gid_address_type (leid) = gid_address_type (reid);
138 if (GID_ADDR_IP_PREFIX == gid_address_type (reid))
139 gid_address_ip_version (leid) = gid_address_ip_version (reid);
143 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
144 memset (a, 0, sizeof (a[0]));
147 a->is_negative = is_negative;
149 a->table_id = dp_table;
150 gid_address_copy (&a->lcl_eid, leid);
151 gid_address_copy (&a->rmt_eid, reid);
152 a->locator_pairs = pairs;
154 rv = vnet_lisp_gpe_add_del_fwd_entry (a, 0);
157 vlib_cli_output (vm, "failed to %s gpe tunnel!",
158 is_add ? "add" : "delete");
162 unformat_free (line_input);
168 VLIB_CLI_COMMAND (lisp_gpe_add_del_fwd_entry_command, static) = {
169 .path = "lisp gpe entry",
170 .short_help = "lisp gpe entry add/del vni <vni> vrf/bd <id> [leid <leid>]"
171 "reid <reid> [loc-pair <lloc> <rloc> w <weight>] "
172 "[negative action <action>]",
173 .function = lisp_gpe_add_del_fwd_entry_command_fn,
177 /** Check if LISP-GPE is enabled. */
179 vnet_lisp_gpe_enable_disable_status (void)
181 lisp_gpe_main_t *lgm = &lisp_gpe_main;
186 /** Enable/disable LISP-GPE. */
188 vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a)
190 lisp_gpe_main_t *lgm = &lisp_gpe_main;
198 /* remove all entries */
199 vnet_lisp_gpe_fwd_entry_flush ();
201 /* disable all l3 ifaces */
202 lisp_gpe_tenant_flush ();
210 /** CLI command to enable/disable LISP-GPE. */
211 static clib_error_t *
212 lisp_gpe_enable_disable_command_fn (vlib_main_t * vm,
213 unformat_input_t * input,
214 vlib_cli_command_t * cmd)
216 unformat_input_t _line_input, *line_input = &_line_input;
218 vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
220 /* Get a line of input. */
221 if (!unformat_user (input, unformat_line_input, line_input))
224 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
226 if (unformat (line_input, "enable"))
228 else if (unformat (line_input, "disable"))
232 return clib_error_return (0, "parse error: '%U'",
233 format_unformat_error, line_input);
237 return vnet_lisp_gpe_enable_disable (a);
241 VLIB_CLI_COMMAND (enable_disable_lisp_gpe_command, static) = {
243 .short_help = "lisp gpe [enable|disable]",
244 .function = lisp_gpe_enable_disable_command_fn,
248 /** CLI command to show LISP-GPE interfaces. */
249 static clib_error_t *
250 lisp_show_iface_command_fn (vlib_main_t * vm,
251 unformat_input_t * input,
252 vlib_cli_command_t * cmd)
254 lisp_gpe_main_t *lgm = &lisp_gpe_main;
257 vlib_cli_output (vm, "%=10s%=12s", "vrf", "hw_if_index");
260 hash_foreach_pair (p, lgm->l3_ifaces.hw_if_index_by_dp_table, ({
261 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
265 if (0 != lgm->l2_ifaces.hw_if_index_by_dp_table)
267 vlib_cli_output (vm, "%=10s%=12s", "bd_id", "hw_if_index");
269 hash_foreach_pair (p, lgm->l2_ifaces.hw_if_index_by_dp_table, ({
270 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
278 VLIB_CLI_COMMAND (lisp_show_iface_command) = {
279 .path = "show lisp gpe interface",
280 .short_help = "show lisp gpe interface",
281 .function = lisp_show_iface_command_fn,
285 /** Format LISP-GPE status. */
287 format_vnet_lisp_gpe_status (u8 * s, va_list * args)
289 lisp_gpe_main_t *lgm = &lisp_gpe_main;
290 return format (s, "%s", lgm->is_en ? "enabled" : "disabled");
294 /** LISP-GPE init function. */
296 lisp_gpe_init (vlib_main_t * vm)
298 lisp_gpe_main_t *lgm = &lisp_gpe_main;
299 clib_error_t *error = 0;
301 if ((error = vlib_call_init_function (vm, ip_main_init)))
304 if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
307 lgm->vnet_main = vnet_get_main ();
309 lgm->im4 = &ip4_main;
310 lgm->im6 = &ip6_main;
311 lgm->lm4 = &ip4_main.lookup_main;
312 lgm->lm6 = &ip6_main.lookup_main;
314 lgm->lisp_gpe_fwd_entries =
315 hash_create_mem (0, sizeof (lisp_gpe_fwd_entry_key_t), sizeof (uword));
317 udp_register_dst_port (vm, UDP_DST_PORT_lisp_gpe,
318 lisp_gpe_ip4_input_node.index, 1 /* is_ip4 */ );
319 udp_register_dst_port (vm, UDP_DST_PORT_lisp_gpe6,
320 lisp_gpe_ip6_input_node.index, 0 /* is_ip4 */ );
324 VLIB_INIT_FUNCTION (lisp_gpe_init);
327 * fd.io coding-style-patch-verification: ON
330 * eval: (c-set-style "gnu")