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bgpd: ignore nexthop validation for srv6-vpn

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Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
This commit is contained in:
Hiroki Shirokura 2021-02-09 05:26:22 +00:00 committed by Mark Stapp
parent 3a0220e46a
commit 7f8c7d9166
1 changed files with 13 additions and 2 deletions
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15
bgpd/bgp_nht.c
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@ -66,9 +66,20 @@ static int bgp_isvalid_nexthop(struct bgp_nexthop_cache *bnc)
static int bgp_isvalid_labeled_nexthop(struct bgp_nexthop_cache *bnc)
{
/*
* In the case of MPLS-VPN, the label is learned from LDP or other
* protocols, and nexthop tracking is enabled for the label.
* The value is recorded as BGP_NEXTHOP_LABELED_VALID.
* In the case of SRv6-VPN, we need to track the reachability to the
* SID (in other words, IPv6 address). As in MPLS, we need to record
* the value as BGP_NEXTHOP_SID_VALID. However, this function is
* currently not implemented, and this function assumes that all
* Transit routes for SRv6-VPN are valid.
*/
return (bgp_zebra_num_connects() == 0
|| (bnc && CHECK_FLAG(bnc->flags, BGP_NEXTHOP_LABELED_VALID)
&& bnc->nexthop_num > 0));
|| (bnc && bnc->nexthop_num > 0
&& (CHECK_FLAG(bnc->flags, BGP_NEXTHOP_LABELED_VALID)
|| bnc->bgp->srv6_enabled)));
}
static void bgp_unlink_nexthop_check(struct bgp_nexthop_cache *bnc)