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);
103 igmp_group_alloc (igmp_config_t * config,
104 const igmp_key_t * gkey, igmp_filter_mode_t mode)
106 igmp_main_t *im = &igmp_main;
110 IGMP_DBG ("new-group: %U", format_igmp_key, gkey);
111 pool_get (im->groups, group);
112 clib_memset (group, 0, sizeof (igmp_group_t));
113 group->key = clib_mem_alloc (sizeof (igmp_key_t));
114 clib_memcpy (group->key, gkey, sizeof (igmp_key_t));
115 group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE] =
116 hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
117 group->igmp_src_by_key[IGMP_FILTER_MODE_EXCLUDE] =
118 hash_create_mem (0, sizeof (igmp_key_t), sizeof (uword));
119 group->router_filter_mode = mode;
120 group->config = igmp_config_index (config);
121 group->n_reports_sent = 0;
123 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
124 group->timers[ii] = IGMP_TIMER_ID_INVALID;
126 hash_set_mem (config->igmp_group_by_key, group->key, group - im->groups);
128 /* If interface is in ROUTER mode and IGMP proxy is enabled
131 if (config->mode == IGMP_MODE_ROUTER)
133 igmp_proxy_device_mfib_path_add_del (group, /* add */ 1);
140 * the set of present sources minus the new set
143 igmp_group_present_minus_new (igmp_group_t * group,
144 igmp_filter_mode_t mode,
145 const ip46_address_t * saddrs)
147 const ip46_address_t *s1;
155 if (0 == vec_len(saddrs))
157 FOR_EACH_SRC(src, group, mode,
159 vec_add1(pmn, *src->key);
164 FOR_EACH_SRC(src, group, mode,
167 vec_foreach(s1, saddrs)
169 if (ip46_address_is_equal(s1, src->key))
177 vec_add1(pmn, *src->key);
186 * the set of new sources minus the present set
189 igmp_group_new_minus_present (igmp_group_t * group,
190 igmp_filter_mode_t mode,
191 const ip46_address_t * saddrs)
193 const ip46_address_t *s1;
201 vec_foreach(s1, saddrs)
204 FOR_EACH_SRC(src, group, mode,
206 if (ip46_address_is_equal(s1, src->key))
222 igmp_group_new_intersect_present (igmp_group_t * group,
223 igmp_filter_mode_t mode,
224 const ip46_address_t * saddrs)
226 ip46_address_t *intersect;
227 const ip46_address_t *s1;
233 FOR_EACH_SRC(src, group, mode,
235 vec_foreach(s1, saddrs)
237 if (s1->ip4.as_u32 == src->key->ip4.as_u32)
239 vec_add1(intersect, *s1);
250 igmp_group_n_srcs (const igmp_group_t * group, igmp_filter_mode_t mode)
252 return (hash_elts (group->igmp_src_by_key[mode]));
257 igmp_src_lookup (igmp_group_t * group, const igmp_key_t * key)
260 igmp_src_t *src = NULL;
264 p = hash_get_mem (group->igmp_src_by_key[IGMP_FILTER_MODE_INCLUDE], key);
266 src = vec_elt_at_index (igmp_main.srcs, p[0]);
272 igmp_group_index (const igmp_group_t * g)
274 return (g - igmp_main.groups);
278 igmp_group_get (u32 index)
280 return (pool_elt_at_index (igmp_main.groups, index));
284 format_igmp_group_timer_type (u8 * s, va_list * args)
286 igmp_group_timer_type_t type = va_arg (*args, igmp_group_timer_type_t);
290 #define _(v,t) case IGMP_GROUP_TIMER_##v: return (format (s, "%s", t));
291 foreach_igmp_group_timer
298 format_igmp_group (u8 * s, va_list * args)
300 igmp_group_t *group = va_arg (*args, igmp_group_t *);
301 u32 indent = va_arg (*args, u32);
305 s = format (s, "%U%U",
306 format_white_space, indent, format_igmp_key, group->key);
308 for (ii = 0; ii < IGMP_GROUP_N_TIMERS; ii++)
309 s = format (s, "\n%U %U:%U", format_white_space, indent,
310 format_igmp_group_timer_type, ii,
311 format_igmp_timer_id, group->timers[ii]);
314 FOR_EACH_SRC (src, group, IGMP_FILTER_MODE_INCLUDE,
316 s = format (s, "\n%U", format_igmp_src, src, indent+4);
324 * fd.io coding-style-patch-verification: ON
327 * eval: (c-set-style "gnu")