+static int
+add_del_mroute_check (fib_protocol_t table_proto,
+ u32 table_id,
+ u32 next_hop_sw_if_index,
+ u8 is_local, u8 create_missing_tables, u32 * fib_index)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+
+ *fib_index = mfib_table_find (table_proto, ntohl (table_id));
+ if (~0 == *fib_index)
+ {
+ if (create_missing_tables)
+ {
+ *fib_index = mfib_table_find_or_create_and_lock (table_proto,
+ ntohl (table_id));
+ }
+ else
+ {
+ /* No such VRF, and we weren't asked to create one */
+ return VNET_API_ERROR_NO_SUCH_FIB;
+ }
+ }
+
+ if (~0 != ntohl (next_hop_sw_if_index))
+ {
+ if (pool_is_free_index (vnm->interface_main.sw_interfaces,
+ ntohl (next_hop_sw_if_index)))
+ {
+ return VNET_API_ERROR_NO_MATCHING_INTERFACE;
+ }
+ }
+
+ return (0);
+}
+
+static int
+mroute_add_del_handler (u8 is_add,
+ u8 is_local,
+ u32 fib_index,
+ const mfib_prefix_t * prefix,
+ u32 entry_flags,
+ u32 next_hop_sw_if_index, u32 itf_flags)
+{
+ stats_dslock_with_hint (1 /* release hint */ , 2 /* tag */ );
+
+ fib_route_path_t path = {
+ .frp_sw_if_index = next_hop_sw_if_index,
+ .frp_proto = prefix->fp_proto,
+ };
+
+ if (is_local)
+ path.frp_flags |= FIB_ROUTE_PATH_LOCAL;
+
+
+ if (!is_local && ~0 == next_hop_sw_if_index)
+ {
+ mfib_table_entry_update (fib_index, prefix,
+ MFIB_SOURCE_API, entry_flags);
+ }
+ else
+ {
+ if (is_add)
+ {
+ mfib_table_entry_path_update (fib_index, prefix,
+ MFIB_SOURCE_API, &path, itf_flags);
+ }
+ else
+ {
+ mfib_table_entry_path_remove (fib_index, prefix,
+ MFIB_SOURCE_API, &path);
+ }
+ }
+
+ stats_dsunlock ();
+ return (0);
+}
+
+static int
+api_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
+{
+ fib_protocol_t fproto;
+ u32 fib_index;
+ int rv;
+
+ fproto = (mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
+ rv = add_del_mroute_check (fproto,
+ mp->table_id,
+ mp->next_hop_sw_if_index,
+ mp->is_local,
+ mp->create_vrf_if_needed, &fib_index);
+
+ if (0 != rv)
+ return (rv);
+
+ mfib_prefix_t pfx = {
+ .fp_len = ntohs (mp->grp_address_length),
+ .fp_proto = fproto,
+ };
+
+ if (FIB_PROTOCOL_IP4 == fproto)
+ {
+ clib_memcpy (&pfx.fp_grp_addr.ip4, mp->grp_address,
+ sizeof (pfx.fp_grp_addr.ip4));
+ clib_memcpy (&pfx.fp_src_addr.ip4, mp->src_address,
+ sizeof (pfx.fp_src_addr.ip4));
+ }
+ else
+ {
+ clib_memcpy (&pfx.fp_grp_addr.ip6, mp->grp_address,
+ sizeof (pfx.fp_grp_addr.ip6));
+ clib_memcpy (&pfx.fp_src_addr.ip6, mp->src_address,
+ sizeof (pfx.fp_src_addr.ip6));
+ }
+
+ return (mroute_add_del_handler (mp->is_add,
+ mp->is_local,
+ fib_index, &pfx,
+ ntohl (mp->entry_flags),
+ ntohl (mp->next_hop_sw_if_index),
+ ntohl (mp->itf_flags)));
+}
+
+void
+vl_api_ip_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
+{
+ vl_api_ip_mroute_add_del_reply_t *rmp;
+ int rv;
+ vnet_main_t *vnm = vnet_get_main ();
+
+ vnm->api_errno = 0;
+
+ rv = api_mroute_add_del_t_handler (mp);
+
+ rv = (rv == 0) ? vnm->api_errno : rv;
+
+ REPLY_MACRO (VL_API_IP_MROUTE_ADD_DEL_REPLY);
+}
+