Import mrouted version 3.9-beta3+IOS12 . This is a version of 3.9-beta3

with minor changes to work around a bug in Cisco's IOS version 12.0 .
3.9-beta3 is much improved over 3.8, and is only labelled "beta" because
of missing features, as opposed to instability or known bugs.

1 files changed, 42 insertions, 0 deletions

diff --git a/usr.sbin/mrouted/igmpv2.h b/usr.sbin/mrouted/igmpv2.h
new file mode 100644
index 0000000..5f5ae27
--- /dev/null
+++ b/usr.sbin/mrouted/igmpv2.h
@@ -0,0 +1,42 @@
+/*
+ * The mrouted program is covered by the license in the accompanying file
+ * named "LICENSE".  Use of the mrouted program represents acceptance of
+ * the terms and conditions listed in that file.
+ *
+ * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
+ * Leland Stanford Junior University.
+ *
+ *
+ * igmpv2.h,v 3.8.4.1 1997/11/18 23:25:58 fenner Exp
+ */
+
+/*
+ * Constants for IGMP Version 2.  Several of these, especially the
+ * robustness variable, should be variables and not constants.
+ */
+#define	IGMP_ROBUSTNESS_VARIABLE		2
+#define	IGMP_QUERY_INTERVAL			125
+#define	IGMP_QUERY_RESPONSE_INTERVAL		10
+#define	IGMP_GROUP_MEMBERSHIP_INTERVAL		(IGMP_ROBUSTNESS_VARIABLE * \
+					IGMP_QUERY_INTERVAL + \
+					IGMP_QUERY_RESPONSE_INTERVAL)
+#define	IGMP_OTHER_QUERIER_PRESENT_INTERVAL	(IGMP_ROBUSTNESS_VARIABLE * \
+					IGMP_QUERY_INTERVAL + \
+					IGMP_QUERY_RESPONSE_INTERVAL / 2)
+						/* Round to the nearest TIMER_INTERVAL */
+#define	IGMP_STARTUP_QUERY_INTERVAL		(((IGMP_QUERY_INTERVAL / 4) \
+							/ TIMER_INTERVAL) * TIMER_INTERVAL)
+#define	IGMP_STARTUP_QUERY_COUNT		IGMP_ROBUSTNESS_VARIABLE
+#define	IGMP_LAST_MEMBER_QUERY_INTERVAL		1
+#define	IGMP_LAST_MEMBER_QUERY_COUNT		IGMP_ROBUSTNESS_VARIABLE
+
+/*
+ * OLD_AGE_THRESHOLD is the number of IGMP_QUERY_INTERVAL's to remember the
+ * presence of an IGMPv1 group member.  According to the IGMPv2 specification,
+ * routers remember this presence for [Robustness Variable] * [Query Interval] +
+ * [Query Response Interval].  However, OLD_AGE_THRESHOLD is in units of
+ * [Query Interval], so doesn't have sufficient resolution to represent
+ * [Query Response Interval].  When the timer mechanism gets an efficient
+ * method of refreshing timers, this should get fixed.
+ */
+#define OLD_AGE_THRESHOLD		IGMP_ROBUSTNESS_VARIABLE