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bgpd: fix add label support to EVPN AD routes #17985

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merged 1 commit into from
Feb 4, 2025
Merged

bgpd: fix add label support to EVPN AD routes #17985

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11 changes: 6 additions & 5 deletions bgpd/bgp_evpn_mh.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1201,6 +1201,7 @@ int bgp_evpn_type1_route_process(struct peer *peer, afi_t afi, safi_t safi,
mpls_label_t label;
struct in_addr vtep_ip;
struct prefix_evpn p;
uint8_t num_labels = 0;

if (psize != BGP_EVPN_TYPE1_PSIZE) {
flog_err(EC_BGP_EVPN_ROUTE_INVALID,
Expand All @@ -1225,6 +1226,7 @@ int bgp_evpn_type1_route_process(struct peer *peer, afi_t afi, safi_t safi,
pfx += EVPN_ETH_TAG_BYTES;

memcpy(&label, pfx, BGP_LABEL_BYTES);
num_labels++;

/* EAD route prefix doesn't include the nexthop in the global
* table
Expand All @@ -1233,12 +1235,11 @@ int bgp_evpn_type1_route_process(struct peer *peer, afi_t afi, safi_t safi,
build_evpn_type1_prefix(&p, eth_tag, &esi, vtep_ip);
/* Process the route. */
if (attr) {
bgp_update(peer, (struct prefix *)&p, addpath_id, attr, afi,
safi, ZEBRA_ROUTE_BGP, BGP_ROUTE_NORMAL, &prd, NULL,
0, 0, NULL);
bgp_update(peer, (struct prefix *)&p, addpath_id, attr, afi, safi, ZEBRA_ROUTE_BGP,
BGP_ROUTE_NORMAL, &prd, &label, num_labels, 0, NULL);
} else {
bgp_withdraw(peer, (struct prefix *)&p, addpath_id, afi, safi,
ZEBRA_ROUTE_BGP, BGP_ROUTE_NORMAL, &prd, NULL, 0);
bgp_withdraw(peer, (struct prefix *)&p, addpath_id, afi, safi, ZEBRA_ROUTE_BGP,
BGP_ROUTE_NORMAL, &prd, &label, num_labels);
}
return 0;
}
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