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zebra: Fallback to default ns if nhg vrf lookup fails

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If the vrf lookup fails, use the default namespace
to find/delete the nexthop group from the kernel because it
should be there anyway.

Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
This commit is contained in:
Stephen Worley 2019-09-06 12:30:30 -04:00
parent f17f2c5d6c
commit a7df21c4d2
1 changed files with 8 additions and 1 deletions
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9
zebra/zebra_dplane.c
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@ -1573,6 +1573,7 @@ static int dplane_ctx_nexthop_init(struct zebra_dplane_ctx *ctx,
enum dplane_op_e op,
struct nhg_hash_entry *nhe)
{
struct zebra_vrf *zvrf = NULL;
struct zebra_ns *zns = NULL;
int ret = EINVAL;
@ -1597,7 +1598,13 @@ static int dplane_ctx_nexthop_init(struct zebra_dplane_ctx *ctx,
ctx->u.rinfo.nhe.nh_grp_count = zebra_nhg_nhe2grp(
ctx->u.rinfo.nhe.nh_grp, nhe, MULTIPATH_NUM);
zns = ((struct zebra_vrf *)vrf_info_lookup(nhe->vrf_id))->zns;
zvrf = vrf_info_lookup(nhe->vrf_id);
/*
* Fallback to default namespace if the vrf got ripped out from under
* us.
*/
zns = zvrf ? zvrf->zns : zebra_ns_lookup(NS_DEFAULT);
/*
* TODO: Might not need to mark this as an update, since