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pim6d: Handling pim_rpf for IPV6

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Signed-off-by: sarita patra <saritap@vmware.com>
This commit is contained in:
sarita patra 2022-02-23 05:03:15 -08:00
parent 113f29b90d
commit 3e394a7729
2 changed files with 26 additions and 16 deletions
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2
pimd/pim_nht.c
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@ -1030,7 +1030,7 @@ int pim_ecmp_nexthop_lookup(struct pim_instance *pim,
nexthop_tab[i].protocol_distance;
nexthop->mrib_route_metric =
nexthop_tab[i].route_metric;
nexthop->last_lookup = src_addr;
nexthop->last_lookup = src_addr;
nexthop->last_lookup_time = pim_time_monotonic_usec();
nexthop->nbr = nbr;
found = 1;

40
pimd/pim_rpf.c
View File

@ -67,7 +67,7 @@ bool pim_nexthop_lookup(struct pim_instance *pim, struct pim_nexthop *nexthop,
* 255.255.255.255 address, since
* it will never work
*/
if (pim_addr_is_none(addr))
if (addr.s_addr == INADDR_NONE)
return false;
#endif
@ -169,11 +169,13 @@ bool pim_nexthop_lookup(struct pim_instance *pim, struct pim_nexthop *nexthop,
static int nexthop_mismatch(const struct pim_nexthop *nh1,
const struct pim_nexthop *nh2)
{
return (nh1->interface != nh2->interface)
|| (nh1->mrib_nexthop_addr.u.prefix4.s_addr
!= nh2->mrib_nexthop_addr.u.prefix4.s_addr)
|| (nh1->mrib_metric_preference != nh2->mrib_metric_preference)
|| (nh1->mrib_route_metric != nh2->mrib_route_metric);
pim_addr nh_addr1 = pim_addr_from_prefix(&nh1->mrib_nexthop_addr);
pim_addr nh_addr2 = pim_addr_from_prefix(&nh2->mrib_nexthop_addr);
return (nh1->interface != nh2->interface) ||
(pim_addr_cmp(nh_addr1, nh_addr2)) ||
(nh1->mrib_metric_preference != nh2->mrib_metric_preference) ||
(nh1->mrib_route_metric != nh2->mrib_route_metric);
}
static void pim_rpf_cost_change(struct pim_instance *pim,
@ -213,6 +215,7 @@ enum pim_rpf_result pim_rpf_update(struct pim_instance *pim,
bool neigh_needed = true;
uint32_t saved_mrib_route_metric;
pim_addr rpf_addr;
pim_addr saved_rpf_addr;
if (PIM_UPSTREAM_FLAG_TEST_STATIC_IIF(up->flags))
return PIM_RPF_OK;
@ -297,9 +300,11 @@ enum pim_rpf_result pim_rpf_update(struct pim_instance *pim,
}
/* detect change in RPF'(S,G) */
if (saved.rpf_addr.u.prefix4.s_addr != rpf->rpf_addr.u.prefix4.s_addr
|| saved.source_nexthop
.interface != rpf->source_nexthop.interface) {
saved_rpf_addr = pim_addr_from_prefix(&saved.rpf_addr);
if (pim_addr_cmp(saved_rpf_addr, rpf_addr) ||
saved.source_nexthop.interface != rpf->source_nexthop.interface) {
pim_rpf_cost_change(pim, up, saved_mrib_route_metric);
return PIM_RPF_CHANGED;
}
@ -327,13 +332,13 @@ void pim_upstream_rpf_clear(struct pim_instance *pim,
if (up->rpf.source_nexthop.interface) {
pim_upstream_switch(pim, up, PIM_UPSTREAM_NOTJOINED);
up->rpf.source_nexthop.interface = NULL;
up->rpf.source_nexthop.mrib_nexthop_addr.u.prefix4.s_addr =
PIM_NET_INADDR_ANY;
pim_addr_to_prefix(&up->rpf.source_nexthop.mrib_nexthop_addr,
PIMADDR_ANY);
up->rpf.source_nexthop.mrib_metric_preference =
router->infinite_assert_metric.metric_preference;
up->rpf.source_nexthop.mrib_route_metric =
router->infinite_assert_metric.route_metric;
up->rpf.rpf_addr.u.prefix4.s_addr = PIM_NET_INADDR_ANY;
pim_addr_to_prefix(&up->rpf.rpf_addr, PIMADDR_ANY);
pim_upstream_mroute_iif_update(up->channel_oil, __func__);
}
}
@ -403,12 +408,12 @@ int pim_rpf_addr_is_inaddr_none(struct pim_rpf *rpf)
int pim_rpf_addr_is_inaddr_any(struct pim_rpf *rpf)
{
pim_addr rpf_addr = pim_addr_from_prefix(&rpf->rpf_addr);
switch (rpf->rpf_addr.family) {
case AF_INET:
return rpf->rpf_addr.u.prefix4.s_addr == INADDR_ANY;
case AF_INET6:
zlog_warn("%s: v6 Unimplmented", __func__);
return 1;
return pim_addr_is_any(rpf_addr);
default:
return 0;
}
@ -426,7 +431,12 @@ unsigned int pim_rpf_hash_key(const void *arg)
{
const struct pim_nexthop_cache *r = arg;
#if PIM_IPV == 4 || !defined(PIM_V6_TEMP_BREAK)
return jhash_1word(r->rpf.rpf_addr.u.prefix4.s_addr, 0);
#else
return jhash2(r->rpf.rpf_addr.u.prefix6.s6_addr32,
array_size(r->rpf.rpf_addr.u.prefix6.s6_addr32), 0);
#endif
}
bool pim_rpf_equal(const void *arg1, const void *arg2)