2 *------------------------------------------------------------------
3 * Copyright (c) 2018 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
18 #include <igmp/igmp_group.h>
19 #include <igmp/igmp.h>
22 igmp_group_free_all_srcs (igmp_group_t * group)
27 FOR_EACH_SRC (src, group, IGMP_FILTER_MODE_INCLUDE,
33 hash_free (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE]);
34 hash_free (group->igmp_src_by_key[IGMP_FILTER_MODE_EXCLUDE]);
38 igmp_group_src_remove (igmp_group_t * group, igmp_src_t * src)
40 hash_unset_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE], src->key);
41 hash_unset_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_EXCLUDE], src->key);
45 igmp_group_src_update (igmp_group_t * group,
46 const igmp_key_t * skey, igmp_mode_t mode)
50 src = igmp_src_lookup (group, skey);
54 src = igmp_src_alloc (igmp_group_index (group), skey, mode);
56 hash_set_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE],
57 src->key, igmp_src_index (src));
61 igmp_src_refresh (src);
68 igmp_group_clear (igmp_group_t ** group)
70 igmp_config_t *config;
75 config = igmp_config_get ((*group)->config);
77 /* If interface is in ROUTER mode and IGMP proxy is enabled
80 if (config->mode == IGMP_MODE_ROUTER)
82 igmp_proxy_device_mfib_path_add_del (*group, /* add */ 0);
85 IGMP_DBG ("clear-group: %U %U",
86 format_igmp_key, (*group)->key,
87 format_vnet_sw_if_index_name,
88 vnet_get_main (), config->sw_if_index);
90 igmp_group_free_all_srcs (*group);
92 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
94 igmp_timer_retire (&(*group)->timers[ii]);
97 hash_unset_mem (config->igmp_group_by_key, (*group)->key);
98 clib_mem_free ((*group)->key);
99 pool_put (igmp_main.groups, *group);
104 igmp_group_alloc (igmp_config_t * config,
105 const igmp_key_t * gkey, igmp_filter_mode_t mode)
107 igmp_main_t *im = &igmp_main;
111 IGMP_DBG ("new-group: %U", format_igmp_key, gkey);
112 pool_get (im->groups, group);
113 clib_memset (group, 0, sizeof (igmp_group_t));
114 group->key = clib_mem_alloc (sizeof (igmp_key_t));
115 clib_memcpy (group->key, gkey, sizeof (igmp_key_t));
116 group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE] =
117 hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
118 group->igmp_src_by_key[IGMP_FILTER_MODE_EXCLUDE] =
119 hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
120 group->router_filter_mode = mode;
121 group->config = igmp_config_index (config);
122 group->n_reports_sent = 0;
124 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
125 group->timers[ii] = IGMP_TIMER_ID_INVALID;
127 hash_set_mem (config->igmp_group_by_key, group->key, group - im->groups);
129 /* If interface is in ROUTER mode and IGMP proxy is enabled
132 if (config->mode == IGMP_MODE_ROUTER)
134 igmp_proxy_device_mfib_path_add_del (group, /* add */ 1);
141 * the set of present sources minus the new set
144 igmp_group_present_minus_new (igmp_group_t * group,
145 igmp_filter_mode_t mode,
146 const ip46_address_t * saddrs)
148 const ip46_address_t *s1;
156 if (0 == vec_len(saddrs))
158 FOR_EACH_SRC(src, group, mode,
160 vec_add1(pmn, *src->key);
165 FOR_EACH_SRC(src, group, mode,
168 vec_foreach(s1, saddrs)
170 if (ip46_address_is_equal(s1, src->key))
178 vec_add1(pmn, *src->key);
187 * the set of new sources minus the present set
190 igmp_group_new_minus_present (igmp_group_t * group,
191 igmp_filter_mode_t mode,
192 const ip46_address_t * saddrs)
194 const ip46_address_t *s1;
202 vec_foreach(s1, saddrs)
205 FOR_EACH_SRC(src, group, mode,
207 if (ip46_address_is_equal(s1, src->key))
223 igmp_group_new_intersect_present (igmp_group_t * group,
224 igmp_filter_mode_t mode,
225 const ip46_address_t * saddrs)
227 ip46_address_t *intersect;
228 const ip46_address_t *s1;
234 FOR_EACH_SRC(src, group, mode,
236 vec_foreach(s1, saddrs)
238 if (s1->ip4.as_u32 == src->key->ip4.as_u32)
240 vec_add1(intersect, *s1);
251 igmp_group_n_srcs (const igmp_group_t * group, igmp_filter_mode_t mode)
253 return (hash_elts (group->igmp_src_by_key[mode]));
258 igmp_src_lookup (igmp_group_t * group, const igmp_key_t * key)
261 igmp_src_t *src = NULL;
265 p = hash_get_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE], key);
267 src = vec_elt_at_index (igmp_main.srcs, p[0]);
273 igmp_group_index (const igmp_group_t * g)
275 return (g - igmp_main.groups);
279 igmp_group_get (u32 index)
281 return (pool_elt_at_index (igmp_main.groups, index));
285 format_igmp_group_timer_type (u8 * s, va_list * args)
287 igmp_group_timer_type_t type = va_arg (*args, igmp_group_timer_type_t);
291 #define _(v,t) case IGMP_GROUP_TIMER_##v: return (format (s, "%s", t));
292 foreach_igmp_group_timer
299 format_igmp_group (u8 * s, va_list * args)
301 igmp_group_t *group = va_arg (*args, igmp_group_t *);
302 u32 indent = va_arg (*args, u32);
306 s = format (s, "%U%U",
307 format_white_space, indent, format_igmp_key, group->key);
309 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
310 s = format (s, "\n%U %U:%U", format_white_space, indent,
311 format_igmp_group_timer_type, ii,
312 format_igmp_timer_id, group->timers[ii]);
315 FOR_EACH_SRC (src, group, IGMP_FILTER_MODE_INCLUDE,
317 s = format (s, "\n%U", format_igmp_src, src, indent+4);
325 * fd.io coding-style-patch-verification: ON
328 * eval: (c-set-style "gnu")