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, 84 insertions, 0 deletions

diff --git a/src/plugins/igmp/igmp_timer.h b/src/plugins/igmp/igmp_timer.h
new file mode 100644
index 00000000000..4847d6f6f6f
--- /dev/null
+++ b/src/plugins/igmp/igmp_timer.h
@@ -0,0 +1,84 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2017 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.
+ *------------------------------------------------------------------
+ */
+
+#ifndef _IGMP_TIMER_H_
+#define _IGMP_TIMER_H_
+
+#include <vlib/vlib.h>
+
+/**
+ * The id of a running timer
+ */
+typedef u32 igmp_timer_id_t;
+
+#define IGMP_TIMER_ID_INVALID (~0)
+
+/**
+ * A call-back function invoked when a timer expires;
+ *  @param obj - the [pool] index of the object that scheduled the timer
+ *  @param data - Data registered by the client at schedule time.
+ */
+typedef void (*igmp_timer_function_t) (u32 obj, void *data);
+
+/**
+ * @brief
+ *  Scehdule a timer to expire in 'when' seconds
+ *
+ */
+extern igmp_timer_id_t igmp_timer_schedule (f64 when,
+					    u32 obj,
+					    igmp_timer_function_t fn,
+					    void *data);
+
+extern void igmp_timer_retire (igmp_timer_id_t * tid);
+extern int igmp_timer_is_running (igmp_timer_id_t tid);
+
+extern f64 igmp_timer_get_expiry_time (igmp_timer_id_t t);
+extern void *igmp_timer_get_data (igmp_timer_id_t t);
+extern void igmp_timer_set_data (igmp_timer_id_t t, void *data);
+
+/**
+ * IGMP timer types and their values
+ *  QUERY - the general query timer
+ *  SRC - source expiration
+ *  LEAVE - leave latency
+ */
+#define foreach_igmp_timer_type \
+  _ (0x1, QUERY)                \
+  _ (0x2, SRC)                  \
+  _ (0x3, LEAVE)                \
+  _ (0x4, REPORT_INTERVAL)
+
+typedef enum igmp_timer_type_t_
+{
+#define _(n,f) IGMP_TIMER_##f = n,
+  foreach_igmp_timer_type
+#undef _
+} igmp_timer_type_t;
+
+extern u32 igmp_timer_type_get (igmp_timer_type_t t);
+extern void igmp_timer_type_set (igmp_timer_type_t t, u32 v);
+
+#endif /* IGMP_TIMER_H_ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */