bgpd: Include structure when removing End.DT46 SID

Include SID structure information when removing an SRv6 End.DT46 SID
from the forwarding plane.

Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>

bgpd/bgp_mplsvpn.c

@@ -535,6 +535,7 @@ void vpn_leak_zebra_vrf_sid_withdraw_per_af(struct bgp *bgp, afi_t afi)
 void vpn_leak_zebra_vrf_sid_withdraw_per_vrf(struct bgp *bgp)
 {
 	int debug = BGP_DEBUG(vpn, VPN_LEAK_LABEL);
+	struct seg6local_context seg6localctx = {};
 
 	if (bgp->vrf_id == VRF_UNKNOWN) {
 		if (debug)
@@ -548,9 +549,18 @@ void vpn_leak_zebra_vrf_sid_withdraw_per_vrf(struct bgp *bgp)
 		zlog_debug("%s: deleting sid for vrf %s (id=%d)", __func__,
 			   bgp->name_pretty, bgp->vrf_id);
 
+	if (bgp->tovpn_sid_locator) {
+		seg6localctx.block_len =
+			bgp->tovpn_sid_locator->block_bits_length;
+		seg6localctx.node_len = bgp->tovpn_sid_locator->node_bits_length;
+		seg6localctx.function_len =
+			bgp->tovpn_sid_locator->function_bits_length;
+		seg6localctx.argument_len =
+			bgp->tovpn_sid_locator->argument_bits_length;
+	}
 	zclient_send_localsid(zclient, bgp->tovpn_zebra_vrf_sid_last_sent,
 			      bgp->vrf_id, ZEBRA_SEG6_LOCAL_ACTION_UNSPEC,
-			      NULL);
+			      &seg6localctx);
 	XFREE(MTYPE_BGP_SRV6_SID, bgp->tovpn_zebra_vrf_sid_last_sent);
 }