bgpd: Adapt write_network for SAFI_RTC

Signed-off-by: Alexander Sohn <github@asohn.de>

bgpd/bgp_route.c

@@ -16313,7 +16313,28 @@ void bgp_config_write_network(struct vty *vty, struct bgp *bgp, afi_t afi,
 
 		p = bgp_dest_get_prefix(dest);
 
-		vty_out(vty, "  network %pFX", p);
+		if (safi == SAFI_RTC) {
+			/* Only prefixes with a length of more than 48 have the
+			 * type and subtype field set. If those aren't set
+			 * ecommunity_ecom2str returns just UNK:
+			 */
+			if (p->prefixlen >= 48) {
+				struct ecommunity *ecom =
+					ecommunity_parse((unsigned char *)&p->u.prefix_rtc
+								 .route_target,
+							 8, false);
+				char *b = ecommunity_ecom2str(ecom, ECOMMUNITY_FORMAT_ROUTE_MAP,
+							      ECOMMUNITY_ROUTE_TARGET);
+
+				vty_out(vty, "  rt %s", b);
+				ecommunity_unintern(&ecom);
+				XFREE(MTYPE_ECOMMUNITY_STR, b);
+			} else
+				vty_out(vty, "  rt 0:0");
+
+			vty_out(vty, "/%d", p->prefixlen);
+		} else
+			vty_out(vty, "  network %pFX", p);
 
 		if (bgp_static->label_index != BGP_INVALID_LABEL_INDEX)
 			vty_out(vty, " label-index %u",