IGMP improvements

- Enable/Disable an interface for IGMP
- improve logging
- refactor common code
- no orphaned timers
- IGMP state changes in main thread only
- Large groups split over multiple state-change reports
- SSM range configuration API.
- more tests

Change-Id: If5674f1044e7e97274a711f47807c9ba689d7b9a
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 96 insertions, 0 deletions

diff --git a/src/plugins/igmp/igmp_config.c b/src/plugins/igmp/igmp_config.c
new file mode 100644
index 00000000000..76e8ace14d9
--- /dev/null
+++ b/src/plugins/igmp/igmp_config.c
@@ -0,0 +1,96 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#include <igmp/igmp_config.h>
+#include <igmp/igmp.h>
+
+void
+igmp_clear_config (igmp_config_t * config)
+{
+  igmp_group_t *group;
+  u32 ii;
+
+  IGMP_DBG ("clear-config: %U",
+	    format_vnet_sw_if_index_name,
+	    vnet_get_main (), config->sw_if_index);
+
+  /* *INDENT-OFF* */
+  FOR_EACH_GROUP (group, config,
+    ({
+      igmp_group_clear (group);
+    }));
+  /* *INDENT-ON* */
+
+  for (ii = 0; ii < IGMP_CONFIG_N_TIMERS; ii++)
+    {
+      igmp_timer_retire (&config->timers[ii]);
+    }
+}
+
+igmp_config_t *
+igmp_config_lookup (u32 sw_if_index)
+{
+  igmp_main_t *im;
+
+  im = &igmp_main;
+
+  if (vec_len (im->igmp_config_by_sw_if_index) > sw_if_index)
+    {
+      u32 index;
+
+      index = im->igmp_config_by_sw_if_index[sw_if_index];
+
+      if (~0 != index)
+	return (vec_elt_at_index (im->configs, index));
+    }
+  return NULL;
+}
+
+u32
+igmp_config_index (const igmp_config_t * c)
+{
+  return (c - igmp_main.configs);
+}
+
+igmp_config_t *
+igmp_config_get (u32 index)
+{
+  return (pool_elt_at_index (igmp_main.configs, index));
+}
+
+igmp_group_t *
+igmp_group_lookup (igmp_config_t * config, const igmp_key_t * key)
+{
+  uword *p;
+  igmp_group_t *group = NULL;
+  if (!config)
+    return NULL;
+
+  p = hash_get_mem (config->igmp_group_by_key, key);
+  if (p)
+    group = pool_elt_at_index (igmp_main.groups, p[0]);
+
+  return group;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */