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)
26 FOR_EACH_SRC (src, group, IGMP_FILTER_MODE_INCLUDE,
31 hash_free (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE]);
32 hash_free (group->igmp_src_by_key[IGMP_FILTER_MODE_EXCLUDE]);
36 igmp_group_src_remove (igmp_group_t * group, igmp_src_t * src)
38 hash_unset_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE], src->key);
39 hash_unset_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_EXCLUDE], src->key);
43 igmp_group_src_update (igmp_group_t * group,
44 const igmp_key_t * skey, igmp_mode_t mode)
48 src = igmp_src_lookup (group, skey);
52 src = igmp_src_alloc (igmp_group_index (group), skey, mode);
54 hash_set_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE],
55 src->key, igmp_src_index (src));
59 igmp_src_refresh (src);
66 igmp_group_clear (igmp_group_t ** group)
68 igmp_config_t *config;
73 config = igmp_config_get ((*group)->config);
75 /* If interface is in ROUTER mode and IGMP proxy is enabled
78 if (config->mode == IGMP_MODE_ROUTER)
80 igmp_proxy_device_mfib_path_add_del (*group, /* add */ 0);
83 IGMP_DBG ("clear-group: %U %U",
84 format_igmp_key, (*group)->key,
85 format_vnet_sw_if_index_name,
86 vnet_get_main (), config->sw_if_index);
88 igmp_group_free_all_srcs (*group);
90 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
92 igmp_timer_retire (&(*group)->timers[ii]);
95 hash_unset_mem (config->igmp_group_by_key, (*group)->key);
96 clib_mem_free ((*group)->key);
97 pool_put (igmp_main.groups, *group);
102 igmp_group_alloc (igmp_config_t * config,
103 const igmp_key_t * gkey, igmp_filter_mode_t mode)
105 igmp_main_t *im = &igmp_main;
109 IGMP_DBG ("new-group: %U", format_igmp_key, gkey);
110 pool_get (im->groups, group);
111 clib_memset (group, 0, sizeof (igmp_group_t));
112 group->key = clib_mem_alloc (sizeof (igmp_key_t));
113 clib_memcpy (group->key, gkey, sizeof (igmp_key_t));
114 group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE] =
115 hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
116 group->igmp_src_by_key[IGMP_FILTER_MODE_EXCLUDE] =
117 hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
118 group->router_filter_mode = mode;
119 group->config = igmp_config_index (config);
120 group->n_reports_sent = 0;
122 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
123 group->timers[ii] = IGMP_TIMER_ID_INVALID;
125 hash_set_mem (config->igmp_group_by_key, group->key, group - im->groups);
127 /* If interface is in ROUTER mode and IGMP proxy is enabled
130 if (config->mode == IGMP_MODE_ROUTER)
132 igmp_proxy_device_mfib_path_add_del (group, /* add */ 1);
139 * the set of present sources minus the new set
142 igmp_group_present_minus_new (igmp_group_t * group,
143 igmp_filter_mode_t mode,
144 const ip46_address_t * saddrs)
146 const ip46_address_t *s1;
153 if (0 == vec_len(saddrs))
155 FOR_EACH_SRC(src, group, mode,
157 vec_add1(pmn, *src->key);
162 FOR_EACH_SRC(src, group, mode,
165 vec_foreach(s1, saddrs)
167 if (ip46_address_is_equal(s1, src->key))
175 vec_add1(pmn, *src->key);
183 * the set of new sources minus the present set
186 igmp_group_new_minus_present (igmp_group_t * group,
187 igmp_filter_mode_t mode,
188 const ip46_address_t * saddrs)
190 const ip46_address_t *s1;
197 vec_foreach(s1, saddrs)
200 FOR_EACH_SRC(src, group, mode,
202 if (ip46_address_is_equal(s1, src->key))
217 igmp_group_new_intersect_present (igmp_group_t * group,
218 igmp_filter_mode_t mode,
219 const ip46_address_t * saddrs)
221 ip46_address_t *intersect;
222 const ip46_address_t *s1;
227 FOR_EACH_SRC(src, group, mode,
229 vec_foreach(s1, saddrs)
231 if (s1->ip4.as_u32 == src->key->ip4.as_u32)
233 vec_add1(intersect, *s1);
243 igmp_group_n_srcs (const igmp_group_t * group, igmp_filter_mode_t mode)
245 return (hash_elts (group->igmp_src_by_key[mode]));
250 igmp_src_lookup (igmp_group_t * group, const igmp_key_t * key)
253 igmp_src_t *src = NULL;
257 p = hash_get_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE], key);
259 src = vec_elt_at_index (igmp_main.srcs, p[0]);
265 igmp_group_index (const igmp_group_t * g)
267 return (g - igmp_main.groups);
271 igmp_group_get (u32 index)
273 return (pool_elt_at_index (igmp_main.groups, index));
277 format_igmp_group_timer_type (u8 * s, va_list * args)
279 igmp_group_timer_type_t type = va_arg (*args, igmp_group_timer_type_t);
283 #define _(v,t) case IGMP_GROUP_TIMER_##v: return (format (s, "%s", t));
284 foreach_igmp_group_timer
291 format_igmp_group (u8 * s, va_list * args)
293 igmp_group_t *group = va_arg (*args, igmp_group_t *);
294 u32 indent = va_arg (*args, u32);
298 s = format (s, "%U%U",
299 format_white_space, indent, format_igmp_key, group->key);
301 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
302 s = format (s, "\n%U %U:%U", format_white_space, indent,
303 format_igmp_group_timer_type, ii,
304 format_igmp_timer_id, group->timers[ii]);
306 FOR_EACH_SRC (src, group, IGMP_FILTER_MODE_INCLUDE,
308 s = format (s, "\n%U", format_igmp_src, src, indent+4);
315 * fd.io coding-style-patch-verification: ON
318 * eval: (c-set-style "gnu")