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75700af602
Zebra can be setup to use a value that is less than MULTIPATH_NUM. When pimd connects to zebra, zebra will inform pim about the MULTIPATH_NUM used. Let's use that value for figuring out our multipath value. Signed-off-by: Donald Sharp <sharpd@nvidia.com>
175 lines
4.2 KiB
C
175 lines
4.2 KiB
C
/*
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* PIM for Quagga
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* Copyright (C) 2008 Everton da Silva Marques
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <zebra.h>
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#include "log.h"
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#include "memory.h"
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#include "if.h"
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#include "prefix.h"
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#include "vty.h"
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#include "plist.h"
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#include "hash.h"
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#include "jhash.h"
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#include "vrf.h"
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#include "lib_errors.h"
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#include "bfd.h"
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#include "pimd.h"
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#if PIM_IPV == 4
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#include "pim_cmd.h"
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#else
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#include "pim6_cmd.h"
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#endif
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#include "pim_str.h"
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#include "pim_oil.h"
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#include "pim_pim.h"
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#include "pim_ssmpingd.h"
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#include "pim_static.h"
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#include "pim_rp.h"
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#include "pim_ssm.h"
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#include "pim_vxlan.h"
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#include "pim_zlookup.h"
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#include "pim_zebra.h"
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#include "pim_mlag.h"
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#if MAXVIFS > 256
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CPP_NOTICE("Work needs to be done to make this work properly via the pim mroute socket\n");
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#endif /* MAXVIFS > 256 */
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#if PIM_IPV == 4
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const char *const PIM_ALL_SYSTEMS = MCAST_ALL_SYSTEMS;
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const char *const PIM_ALL_ROUTERS = MCAST_ALL_ROUTERS;
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const char *const PIM_ALL_PIM_ROUTERS = MCAST_ALL_PIM_ROUTERS;
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const char *const PIM_ALL_IGMP_ROUTERS = MCAST_ALL_IGMP_ROUTERS;
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#else
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const char *const PIM_ALL_SYSTEMS = "ff02::1";
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const char *const PIM_ALL_ROUTERS = "ff02::2";
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const char *const PIM_ALL_PIM_ROUTERS = "ff02::d";
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const char *const PIM_ALL_IGMP_ROUTERS = "ff02::16";
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#endif
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DEFINE_MTYPE_STATIC(PIMD, ROUTER, "PIM Router information");
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struct pim_router *router = NULL;
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pim_addr qpim_all_pim_routers_addr;
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void pim_prefix_list_update(struct prefix_list *plist)
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{
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struct pim_instance *pim;
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struct vrf *vrf;
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RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
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pim = vrf->info;
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if (!pim)
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continue;
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pim_rp_prefix_list_update(pim, plist);
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pim_ssm_prefix_list_update(pim, plist);
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pim_upstream_spt_prefix_list_update(pim, plist);
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}
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}
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static void pim_free(void)
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{
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pim_route_map_terminate();
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zclient_lookup_free();
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}
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void pim_router_init(void)
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{
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router = XCALLOC(MTYPE_ROUTER, sizeof(*router));
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router->debugs = 0;
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router->master = frr_init();
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router->t_periodic = PIM_DEFAULT_T_PERIODIC;
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router->multipath = MULTIPATH_NUM;
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/*
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RFC 4601: 4.6.3. Assert Metrics
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assert_metric
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infinite_assert_metric() {
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return {1,infinity,infinity,0}
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}
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*/
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router->infinite_assert_metric.rpt_bit_flag = 1;
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router->infinite_assert_metric.metric_preference =
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PIM_ASSERT_METRIC_PREFERENCE_MAX;
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router->infinite_assert_metric.route_metric =
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PIM_ASSERT_ROUTE_METRIC_MAX;
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router->infinite_assert_metric.ip_address = PIMADDR_ANY;
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router->rpf_cache_refresh_delay_msec = 50;
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router->register_suppress_time = PIM_REGISTER_SUPPRESSION_TIME_DEFAULT;
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router->packet_process = PIM_DEFAULT_PACKET_PROCESS;
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router->register_probe_time = PIM_REGISTER_PROBE_TIME_DEFAULT;
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router->vrf_id = VRF_DEFAULT;
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router->pim_mlag_intf_cnt = 0;
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router->connected_to_mlag = false;
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}
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void pim_router_terminate(void)
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{
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XFREE(MTYPE_ROUTER, router);
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}
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void pim_init(void)
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{
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if (!inet_pton(PIM_AF, PIM_ALL_PIM_ROUTERS,
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&qpim_all_pim_routers_addr)) {
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flog_err(
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EC_LIB_SOCKET,
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"%s %s: could not solve %s to group address: errno=%d: %s",
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__FILE__, __func__, PIM_ALL_PIM_ROUTERS, errno,
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safe_strerror(errno));
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assert(0);
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return;
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}
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pim_cmd_init();
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}
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void pim_terminate(void)
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{
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struct zclient *zclient;
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bfd_protocol_integration_set_shutdown(true);
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/* reverse prefix_list_init */
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prefix_list_add_hook(NULL);
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prefix_list_delete_hook(NULL);
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prefix_list_reset();
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pim_vxlan_terminate();
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pim_vrf_terminate();
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zclient = pim_zebra_zclient_get();
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if (zclient) {
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zclient_stop(zclient);
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zclient_free(zclient);
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}
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pim_free();
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pim_mlag_terminate();
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pim_router_terminate();
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frr_fini();
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}
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