From 2c7cac91ed6e7db0f6937923d2b57f97dbdbc337 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:53:30 +0200 Subject: Adding upstream version 8.4.4. Signed-off-by: Daniel Baumann --- pimd/pim_rpf.h | 73 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 pimd/pim_rpf.h (limited to 'pimd/pim_rpf.h') diff --git a/pimd/pim_rpf.h b/pimd/pim_rpf.h new file mode 100644 index 0000000..2ddb983 --- /dev/null +++ b/pimd/pim_rpf.h @@ -0,0 +1,73 @@ +/* + * 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 +#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 */ -- cgit v1.2.3