pimd: show ip igmp statistics command

Command showing IGMP Rx statistics, useful for analyzing IGMP
activity on interfaces.

Signed-off-by: Mladen Sablic <mladen.sablic@gmail.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/pimd/pim_igmp_stats.c b/pimd/pim_igmp_stats.c
new file mode 100644
index 000000000..428816e1f
--- /dev/null
+++ b/pimd/pim_igmp_stats.c
@@ -0,0 +1,42 @@
+/*
+ * PIM for FRRouting
+ * Copyright (C) 2018  Mladen Sablic
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "pim_igmp_stats.h"
+
+void igmp_stats_init(struct igmp_stats *stats)
+{
+	memset(stats, 0, sizeof(struct igmp_stats));
+}
+
+void igmp_stats_add(struct igmp_stats *a, struct igmp_stats *b)
+{
+	if (!a || !b)
+		return;
+
+	a->query_v1 += b->query_v1;
+	a->query_v2 += b->query_v2;
+	a->query_v3 += b->query_v3;
+	a->report_v1 += b->report_v1;
+	a->report_v2 += b->report_v2;
+	a->report_v3 += b->report_v3;
+	a->leave_v2 += b->leave_v2;
+	a->mtrace_rsp += b->mtrace_rsp;
+	a->mtrace_req += b->mtrace_req;
+	a->unsupported += b->unsupported;
+}