2 * Copyright (c) 2018 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.
16 #include <plugins/gbp/gbp_itf.h>
17 #include <plugins/gbp/gbp_bridge_domain.h>
18 #include <plugins/gbp/gbp_route_domain.h>
20 #include <vnet/ip/ip.h>
22 #define foreach_gbp_itf_mode \
26 typedef enum gbp_ift_mode_t_
28 #define _(s,v) GBP_ITF_MODE_##s,
34 * Attributes and configurations attached to interfaces by GBP
36 typedef struct gbp_itf_t_
39 * Number of references to this interface
44 * The interface this wrapper is managing
49 * The mode of the interface
51 gbp_itf_mode_t gi_mode;
54 * Users of this interface - this is encoded in the user's handle
59 * L2/L3 Features configured by each user
67 * function to call when the interface is deleted.
69 gbp_itf_free_fn_t gi_free_fn;
81 static gbp_itf_t *gbp_itf_pool;
82 static uword *gbp_itf_db;
84 static const char *gbp_itf_feat_bit_pos_to_arc[] = {
85 #define _(s,v,a) [GBP_ITF_L3_FEAT_POS_##s] = a,
86 foreach_gdb_l3_feature
90 static const char *gbp_itf_feat_bit_pos_to_feat[] = {
91 #define _(s,v,a) [GBP_ITF_L3_FEAT_POS_##s] = v,
92 foreach_gdb_l3_feature
97 format_gbp_itf_l3_feat (u8 * s, va_list * args)
99 gbp_itf_l3_feat_t flags = va_arg (*args, gbp_itf_l3_feat_t);
102 if (flags & GBP_ITF_L3_FEAT_##a) \
103 s = format (s, "%s ", b);
104 foreach_gdb_l3_feature
110 gbp_itf_hdl_reset (gbp_itf_hdl_t * gh)
112 *gh = GBP_ITF_HDL_INVALID;
116 gbp_itf_hdl_is_valid (gbp_itf_hdl_t gh)
118 return (gh.gh_which != GBP_ITF_HDL_INVALID.gh_which);
122 gbp_itf_get (index_t gii)
124 if (pool_is_free_index (gbp_itf_pool, gii))
127 return (pool_elt_at_index (gbp_itf_pool, gii));
131 gbp_itf_find (u32 sw_if_index)
135 p = hash_get (gbp_itf_db, sw_if_index);
138 return (gbp_itf_get (p[0]));
144 gbp_itf_find_hdl (gbp_itf_hdl_t gh)
146 return (gbp_itf_find (gh.gh_which));
150 gbp_itf_get_sw_if_index (gbp_itf_hdl_t hdl)
152 return (hdl.gh_which);
156 gbp_itf_mk_hdl (gbp_itf_t * gi)
161 pool_get (gi->gi_users, useri);
164 gh.gh_who = useri - gi->gi_users;
165 gh.gh_which = gi->gi_sw_if_index;
171 gbp_itf_l2_add_and_lock_i (u32 sw_if_index, index_t gbi, gbp_itf_free_fn_t ff)
175 gi = gbp_itf_find (sw_if_index);
179 pool_get_zero (gbp_itf_pool, gi);
181 gi->gi_sw_if_index = sw_if_index;
183 gi->gi_mode = GBP_ITF_MODE_L2;
186 gbp_bridge_domain_itf_add (gi->gi_gbi, gi->gi_sw_if_index,
187 L2_BD_PORT_TYPE_NORMAL);
189 hash_set (gbp_itf_db, gi->gi_sw_if_index, gi - gbp_itf_pool);
194 return (gbp_itf_mk_hdl (gi));
198 gbp_itf_l2_add_and_lock (u32 sw_if_index, index_t gbi)
200 return (gbp_itf_l2_add_and_lock_i (sw_if_index, gbi, NULL));
204 gbp_itf_l2_add_and_lock_w_free (u32 sw_if_index,
205 index_t gbi, gbp_itf_free_fn_t ff)
207 return (gbp_itf_l2_add_and_lock_i (sw_if_index, gbi, ff));
211 gbp_itf_l3_add_and_lock_i (u32 sw_if_index, index_t gri, gbp_itf_free_fn_t ff)
215 gi = gbp_itf_find (sw_if_index);
219 const gbp_route_domain_t *grd;
220 fib_protocol_t fproto;
222 pool_get_zero (gbp_itf_pool, gi);
224 gi->gi_sw_if_index = sw_if_index;
225 gi->gi_mode = GBP_ITF_MODE_L3;
229 grd = gbp_route_domain_get (gi->gi_gri);
231 ip4_sw_interface_enable_disable (gi->gi_sw_if_index, 1);
232 ip6_sw_interface_enable_disable (gi->gi_sw_if_index, 1);
234 FOR_EACH_FIB_IP_PROTOCOL (fproto)
235 ip_table_bind (fproto, gi->gi_sw_if_index, grd->grd_table_id[fproto]);
237 hash_set (gbp_itf_db, gi->gi_sw_if_index, gi - gbp_itf_pool);
242 return (gbp_itf_mk_hdl (gi));
246 gbp_itf_l3_add_and_lock (u32 sw_if_index, index_t gri)
248 return (gbp_itf_l3_add_and_lock_i (sw_if_index, gri, NULL));
252 gbp_itf_l3_add_and_lock_w_free (u32 sw_if_index,
253 index_t gri, gbp_itf_free_fn_t ff)
255 return (gbp_itf_l3_add_and_lock_i (sw_if_index, gri, ff));
259 gbp_itf_lock (gbp_itf_hdl_t gh)
263 if (!gbp_itf_hdl_is_valid (gh))
266 gi = gbp_itf_find_hdl (gh);
272 gbp_itf_clone_and_lock (gbp_itf_hdl_t gh)
276 if (!gbp_itf_hdl_is_valid (gh))
277 return (GBP_ITF_HDL_INVALID);
279 gi = gbp_itf_find_hdl (gh);
283 return (gbp_itf_mk_hdl (gi));
287 gbp_itf_unlock (gbp_itf_hdl_t * gh)
291 if (!gbp_itf_hdl_is_valid (*gh))
294 gi = gbp_itf_find_hdl (*gh);
295 ASSERT (gi->gi_locks > 0);
298 if (0 == gi->gi_locks)
300 if (GBP_ITF_MODE_L2 == gi->gi_mode)
302 gbp_itf_l2_set_input_feature (*gh, L2INPUT_FEAT_NONE);
303 gbp_itf_l2_set_output_feature (*gh, L2OUTPUT_FEAT_NONE);
304 gbp_bridge_domain_itf_del (gi->gi_gbi,
306 L2_BD_PORT_TYPE_NORMAL);
310 fib_protocol_t fproto;
312 gbp_itf_l3_set_input_feature (*gh, GBP_ITF_L3_FEAT_NONE);
313 FOR_EACH_FIB_IP_PROTOCOL (fproto)
314 ip_table_bind (fproto, gi->gi_sw_if_index, 0);
316 ip4_sw_interface_enable_disable (gi->gi_sw_if_index, 0);
317 ip6_sw_interface_enable_disable (gi->gi_sw_if_index, 0);
320 hash_unset (gbp_itf_db, gi->gi_sw_if_index);
323 gi->gi_free_fn (gi->gi_sw_if_index);
325 pool_free (gi->gi_users);
326 vec_free (gi->gi_input_fbs);
327 vec_free (gi->gi_output_fbs);
329 memset (gi, 0, sizeof (*gi));
332 gbp_itf_hdl_reset (gh);
336 gbp_itf_l3_set_input_feature (gbp_itf_hdl_t gh, gbp_itf_l3_feat_t feats)
338 u32 diff_fb, new_fb, *fb, feat;
341 gi = gbp_itf_find_hdl (gh);
343 if (NULL == gi || GBP_ITF_MODE_L3 != gi->gi_mode)
346 vec_validate (gi->gi_input_fbs, gh.gh_who);
347 gi->gi_input_fbs[gh.gh_who] = feats;
350 vec_foreach (fb, gi->gi_input_fbs)
355 /* add new features */
356 diff_fb = (gi->gi_input_fb ^ new_fb) & new_fb;
359 foreach_set_bit (feat, diff_fb,
361 vnet_feature_enable_disable (gbp_itf_feat_bit_pos_to_arc[feat],
362 gbp_itf_feat_bit_pos_to_feat[feat],
363 gi->gi_sw_if_index, 1, 0, 0);
367 /* remove unneeded features */
368 diff_fb = (gi->gi_input_fb ^ new_fb) & gi->gi_input_fb;
371 foreach_set_bit (feat, diff_fb,
373 vnet_feature_enable_disable (gbp_itf_feat_bit_pos_to_arc[feat],
374 gbp_itf_feat_bit_pos_to_feat[feat],
375 gi->gi_sw_if_index, 0, 0, 0);
379 gi->gi_input_fb = new_fb;
383 gbp_itf_l2_set_input_feature (gbp_itf_hdl_t gh, l2input_feat_masks_t feats)
385 u32 diff_fb, new_fb, *fb, feat;
388 gi = gbp_itf_find_hdl (gh);
390 if (NULL == gi || GBP_ITF_MODE_L2 != gi->gi_mode)
396 vec_validate (gi->gi_input_fbs, gh.gh_who);
397 gi->gi_input_fbs[gh.gh_who] = feats;
400 vec_foreach (fb, gi->gi_input_fbs)
405 /* add new features */
406 diff_fb = (gi->gi_input_fb ^ new_fb) & new_fb;
409 foreach_set_bit (feat, diff_fb,
411 l2input_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 1);
415 /* remove unneeded features */
416 diff_fb = (gi->gi_input_fb ^ new_fb) & gi->gi_input_fb;
419 foreach_set_bit (feat, diff_fb,
421 l2input_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 0);
425 gi->gi_input_fb = new_fb;
429 gbp_itf_l2_set_output_feature (gbp_itf_hdl_t gh, l2output_feat_masks_t feats)
431 u32 diff_fb, new_fb, *fb, feat;
434 gi = gbp_itf_find_hdl (gh);
436 if (NULL == gi || GBP_ITF_MODE_L2 != gi->gi_mode)
442 vec_validate (gi->gi_output_fbs, gh.gh_who);
443 gi->gi_output_fbs[gh.gh_who] = feats;
446 vec_foreach (fb, gi->gi_output_fbs)
451 /* add new features */
452 diff_fb = (gi->gi_output_fb ^ new_fb) & new_fb;
455 foreach_set_bit (feat, diff_fb,
457 l2output_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 1);
461 /* remove unneeded features */
462 diff_fb = (gi->gi_output_fb ^ new_fb) & gi->gi_output_fb;
465 foreach_set_bit (feat, diff_fb,
467 l2output_intf_bitmap_enable (gi->gi_sw_if_index, (1 << feat), 0);
471 gi->gi_output_fb = new_fb;
475 format_gbp_itf_mode (u8 * s, va_list * args)
477 gbp_itf_mode_t mode = va_arg (*args, gbp_itf_mode_t);
482 case GBP_ITF_MODE_##a: \
483 return format(s, "%s", v);
491 format_gbp_itf (u8 * s, va_list * args)
493 index_t gii = va_arg (*args, index_t);
496 if (INDEX_INVALID == gii)
497 return (format (s, "unset"));
499 gi = gbp_itf_get (gii);
501 s = format (s, "%U locks:%d mode:%U ",
502 format_vnet_sw_if_index_name, vnet_get_main (),
503 gi->gi_sw_if_index, gi->gi_locks,
504 format_gbp_itf_mode, gi->gi_mode);
506 if (GBP_ITF_MODE_L2 == gi->gi_mode)
507 s = format (s, "gbp-bd:%d input-feats:[%U] output-feats:[%U]",
509 format_l2_input_features, gi->gi_input_fb, 0,
510 format_l2_output_features, gi->gi_output_fb, 0);
512 s = format (s, "gbp-rd:%d input-feats:[%U] output-feats:[%U]",
514 format_gbp_itf_l3_feat, gi->gi_input_fb,
515 format_gbp_itf_l3_feat, gi->gi_output_fb);
521 format_gbp_itf_hdl (u8 * s, va_list * args)
523 gbp_itf_hdl_t gh = va_arg (*args, gbp_itf_hdl_t);
526 gi = gbp_itf_find_hdl (gh);
529 return format (s, "INVALID");
531 return (format (s, "%U", format_gbp_itf, gi - gbp_itf_pool));
534 static clib_error_t *
535 gbp_itf_show (vlib_main_t * vm,
536 unformat_input_t * input, vlib_cli_command_t * cmd)
540 vlib_cli_output (vm, "Interfaces:");
543 pool_foreach_index (gii, gbp_itf_pool)
545 vlib_cli_output (vm, " [%d] %U", gii, format_gbp_itf, gii);
553 * Show Group Based Interfaces
556 * @cliexstart{show gbp contract}
560 VLIB_CLI_COMMAND (gbp_contract_show_node, static) = {
561 .path = "show gbp interface",
562 .short_help = "show gbp interface\n",
563 .function = gbp_itf_show,
569 * fd.io coding-style-patch-verification: ON
572 * eval: (c-set-style "gnu")