mirror of
https://git.proxmox.com/git/mirror_frr
synced 2025-11-04 06:00:58 +00:00
acddc0ed3c
Done with a combination of regex'ing and banging my head against a wall. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* pim_bfd.c: PIM BFD handling routines
|
|
*
|
|
* Copyright (C) 2017 Cumulus Networks, Inc.
|
|
* Chirag Shah
|
|
*/
|
|
|
|
#include <zebra.h>
|
|
|
|
#include "lib/json.h"
|
|
#include "command.h"
|
|
#include "vty.h"
|
|
#include "zclient.h"
|
|
|
|
#include "pim_instance.h"
|
|
#include "pim_neighbor.h"
|
|
#include "pim_vty.h"
|
|
#include "pim_iface.h"
|
|
#include "pim_bfd.h"
|
|
#include "bfd.h"
|
|
#include "pimd.h"
|
|
#include "pim_zebra.h"
|
|
|
|
/*
|
|
* pim_bfd_write_config - Write the interface BFD configuration.
|
|
*/
|
|
void pim_bfd_write_config(struct vty *vty, struct interface *ifp)
|
|
{
|
|
struct pim_interface *pim_ifp = ifp->info;
|
|
|
|
if (!pim_ifp || !pim_ifp->bfd_config.enabled)
|
|
return;
|
|
|
|
#if HAVE_BFDD == 0
|
|
if (pim_ifp->bfd_config.detection_multiplier != BFD_DEF_DETECT_MULT
|
|
|| pim_ifp->bfd_config.min_rx != BFD_DEF_MIN_RX
|
|
|| pim_ifp->bfd_config.min_tx != BFD_DEF_MIN_TX)
|
|
vty_out(vty, " " PIM_AF_NAME " pim bfd %d %d %d\n",
|
|
pim_ifp->bfd_config.detection_multiplier,
|
|
pim_ifp->bfd_config.min_rx, pim_ifp->bfd_config.min_tx);
|
|
else
|
|
#endif /* ! HAVE_BFDD */
|
|
vty_out(vty, " " PIM_AF_NAME " pim bfd\n");
|
|
|
|
if (pim_ifp->bfd_config.profile)
|
|
vty_out(vty, " " PIM_AF_NAME " pim bfd profile %s\n",
|
|
pim_ifp->bfd_config.profile);
|
|
}
|
|
|
|
static void pim_neighbor_bfd_cb(struct bfd_session_params *bsp,
|
|
const struct bfd_session_status *bss, void *arg)
|
|
{
|
|
struct pim_neighbor *nbr = arg;
|
|
|
|
if (PIM_DEBUG_PIM_TRACE) {
|
|
zlog_debug("%s: status %s old_status %s", __func__,
|
|
bfd_get_status_str(bss->state),
|
|
bfd_get_status_str(bss->previous_state));
|
|
}
|
|
|
|
if (bss->state == BFD_STATUS_DOWN
|
|
&& bss->previous_state == BFD_STATUS_UP)
|
|
pim_neighbor_delete(nbr->interface, nbr, "BFD Session Expired");
|
|
}
|
|
|
|
/*
|
|
* pim_bfd_info_nbr_create - Create/update BFD information for a neighbor.
|
|
*/
|
|
void pim_bfd_info_nbr_create(struct pim_interface *pim_ifp,
|
|
struct pim_neighbor *neigh)
|
|
{
|
|
/* Check if Pim Interface BFD is enabled */
|
|
if (!pim_ifp || !pim_ifp->bfd_config.enabled)
|
|
return;
|
|
|
|
if (neigh->bfd_session == NULL)
|
|
neigh->bfd_session = bfd_sess_new(pim_neighbor_bfd_cb, neigh);
|
|
|
|
bfd_sess_set_timers(
|
|
neigh->bfd_session, pim_ifp->bfd_config.detection_multiplier,
|
|
pim_ifp->bfd_config.min_rx, pim_ifp->bfd_config.min_tx);
|
|
#if PIM_IPV == 4
|
|
bfd_sess_set_ipv4_addrs(neigh->bfd_session, NULL, &neigh->source_addr);
|
|
#else
|
|
bfd_sess_set_ipv6_addrs(neigh->bfd_session, NULL, &neigh->source_addr);
|
|
#endif
|
|
bfd_sess_set_interface(neigh->bfd_session, neigh->interface->name);
|
|
bfd_sess_set_vrf(neigh->bfd_session, neigh->interface->vrf->vrf_id);
|
|
bfd_sess_set_profile(neigh->bfd_session, pim_ifp->bfd_config.profile);
|
|
bfd_sess_install(neigh->bfd_session);
|
|
}
|
|
|
|
/*
|
|
* pim_bfd_reg_dereg_all_nbr - Register/Deregister all neighbors associated
|
|
* with a interface with BFD through
|
|
* zebra for starting/stopping the monitoring of
|
|
* the neighbor rechahability.
|
|
*/
|
|
void pim_bfd_reg_dereg_all_nbr(struct interface *ifp)
|
|
{
|
|
struct pim_interface *pim_ifp = NULL;
|
|
struct listnode *node = NULL;
|
|
struct pim_neighbor *neigh = NULL;
|
|
|
|
pim_ifp = ifp->info;
|
|
if (!pim_ifp)
|
|
return;
|
|
|
|
for (ALL_LIST_ELEMENTS_RO(pim_ifp->pim_neighbor_list, node, neigh)) {
|
|
if (pim_ifp->bfd_config.enabled)
|
|
pim_bfd_info_nbr_create(pim_ifp, neigh);
|
|
else
|
|
bfd_sess_free(&neigh->bfd_session);
|
|
}
|
|
}
|
|
|
|
void pim_bfd_init(void)
|
|
{
|
|
bfd_protocol_integration_init(pim_zebra_zclient_get(), router->master);
|
|
}
|