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authorDonald Sharp <sharpd@nvidia.com>2022-06-22 14:12:04 +0200
committerDonald Sharp <sharpd@nvidia.com>2022-06-23 19:29:19 +0200
commit75700af6027073a2ede58b429ec49b6beb05dcb3 (patch)
tree18a84e3f929f681e2c2232fca177a72f49febdc6 /pimd/pim_nht.c
parentbgpd: Cleanup pointer assignment so compiler doesn't get confused (diff)
downloadfrr-75700af6027073a2ede58b429ec49b6beb05dcb3.tar.xz
frr-75700af6027073a2ede58b429ec49b6beb05dcb3.zip
pimd: Limit pim's ecmp to what zebra tells us is the multipath
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>
Diffstat (limited to 'pimd/pim_nht.c')
-rw-r--r--pimd/pim_nht.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/pimd/pim_nht.c b/pimd/pim_nht.c
index 22716c2a9..564d16a60 100644
--- a/pimd/pim_nht.c
+++ b/pimd/pim_nht.c
@@ -304,15 +304,15 @@ bool pim_nht_bsr_rpf_check(struct pim_instance *pim, struct in_addr bsr_addr,
* "check cache or get immediate result." But until that can
* be worked in, here's a copy of the code below :(
*/
- struct pim_zlookup_nexthop nexthop_tab[MULTIPATH_NUM];
+ struct pim_zlookup_nexthop nexthop_tab[router->multipath];
ifindex_t i;
struct interface *ifp = NULL;
int num_ifindex;
memset(nexthop_tab, 0, sizeof(nexthop_tab));
- num_ifindex = zclient_lookup_nexthop(pim, nexthop_tab,
- MULTIPATH_NUM, bsr_addr,
- PIM_NEXTHOP_LOOKUP_MAX);
+ num_ifindex = zclient_lookup_nexthop(
+ pim, nexthop_tab, router->multipath, bsr_addr,
+ PIM_NEXTHOP_LOOKUP_MAX);
if (num_ifindex <= 0)
return false;
@@ -501,8 +501,8 @@ static int pim_ecmp_nexthop_search(struct pim_instance *pim,
struct prefix *src, struct prefix *grp,
int neighbor_needed)
{
- struct pim_neighbor *nbrs[MULTIPATH_NUM], *nbr = NULL;
- struct interface *ifps[MULTIPATH_NUM];
+ struct pim_neighbor *nbrs[router->multipath], *nbr = NULL;
+ struct interface *ifps[router->multipath];
struct nexthop *nh_node = NULL;
ifindex_t first_ifindex;
struct interface *ifp = NULL;
@@ -888,11 +888,11 @@ int pim_ecmp_nexthop_lookup(struct pim_instance *pim,
struct prefix *grp, int neighbor_needed)
{
struct pim_nexthop_cache *pnc;
- struct pim_zlookup_nexthop nexthop_tab[MULTIPATH_NUM];
- struct pim_neighbor *nbrs[MULTIPATH_NUM], *nbr = NULL;
+ struct pim_zlookup_nexthop nexthop_tab[router->multipath];
+ struct pim_neighbor *nbrs[router->multipath], *nbr = NULL;
struct pim_rpf rpf;
int num_ifindex;
- struct interface *ifps[MULTIPATH_NUM], *ifp;
+ struct interface *ifps[router->multipath], *ifp;
int first_ifindex;
int found = 0;
uint8_t i = 0;
@@ -915,9 +915,10 @@ int pim_ecmp_nexthop_lookup(struct pim_instance *pim,
}
memset(nexthop_tab, 0,
- sizeof(struct pim_zlookup_nexthop) * MULTIPATH_NUM);
- num_ifindex = zclient_lookup_nexthop(pim, nexthop_tab, MULTIPATH_NUM,
- src_addr, PIM_NEXTHOP_LOOKUP_MAX);
+ sizeof(struct pim_zlookup_nexthop) * router->multipath);
+ num_ifindex =
+ zclient_lookup_nexthop(pim, nexthop_tab, router->multipath,
+ src_addr, PIM_NEXTHOP_LOOKUP_MAX);
if (num_ifindex < 1) {
if (PIM_DEBUG_PIM_NHT)
zlog_warn(