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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:53:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:53:30 +0000
commit2c7cac91ed6e7db0f6937923d2b57f97dbdbc337 (patch)
treec05dc0f8e6aa3accc84e3e5cffc933ed94941383 /pimd/pim_rpf.h
parentInitial commit. (diff)
downloadfrr-2c7cac91ed6e7db0f6937923d2b57f97dbdbc337.tar.xz
frr-2c7cac91ed6e7db0f6937923d2b57f97dbdbc337.zip
Adding upstream version 8.4.4.upstream/8.4.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'pimd/pim_rpf.h')
-rw-r--r--pimd/pim_rpf.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/pimd/pim_rpf.h 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 */