1 files changed, 73 insertions, 0 deletions
diff --git a/pimd/pim_rpf.h b/pimd/pim_rpf.h
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+++ b/pimd/pim_rpf.h
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+/*
+ * PIM for Quagga
+ * Copyright (C) 2008  Everton da Silva Marques
+ *
+ * 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
+ */
+
+#ifndef PIM_RPF_H
+#define PIM_RPF_H
+
+#include <zebra.h>
+#include "pim_str.h"
+
+struct pim_instance;
+
+/*
+  RFC 4601:
+
+  Metric Preference
+    Preference value assigned to the unicast routing protocol that
+    provided the route to the multicast source or Rendezvous-Point.
+
+  Metric
+    The unicast routing table metric associated with the route used to
+    reach the multicast source or Rendezvous-Point.  The metric is in
+    units applicable to the unicast routing protocol used.
+*/
+struct pim_nexthop {
+	pim_addr last_lookup;
+	long long last_lookup_time;
+	struct interface *interface;     /* RPF_interface(S) */
+	pim_addr mrib_nexthop_addr;      /* MRIB.next_hop(S) */
+	uint32_t mrib_metric_preference; /* MRIB.pref(S) */
+	uint32_t mrib_route_metric;      /* MRIB.metric(S) */
+	struct pim_neighbor *nbr;
+};
+
+struct pim_rpf {
+	struct pim_nexthop source_nexthop;
+	pim_addr rpf_addr; /* RPF'(S,G) */
+};
+
+enum pim_rpf_result { PIM_RPF_OK = 0, PIM_RPF_CHANGED, PIM_RPF_FAILURE };
+
+struct pim_upstream;
+
+unsigned int pim_rpf_hash_key(const void *arg);
+bool pim_rpf_equal(const void *arg1, const void *arg2);
+
+bool pim_nexthop_lookup(struct pim_instance *pim, struct pim_nexthop *nexthop,
+			pim_addr addr, int neighbor_needed);
+enum pim_rpf_result pim_rpf_update(struct pim_instance *pim,
+				   struct pim_upstream *up,
+				   struct pim_rpf *old, const char *caller);
+void pim_upstream_rpf_clear(struct pim_instance *pim,
+			    struct pim_upstream *up);
+int pim_rpf_addr_is_inaddr_any(struct pim_rpf *rpf);
+
+int pim_rpf_is_same(struct pim_rpf *rpf1, struct pim_rpf *rpf2);
+void pim_rpf_set_refresh_time(struct pim_instance *pim);
+#endif /* PIM_RPF_H */