2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
17 * The data-path object representing dropping the packet
20 #include <vnet/dpo/dpo.h>
22 static dpo_id_t drop_dpos[DPO_PROTO_NUM];
25 drop_dpo_get (dpo_proto_t proto)
27 dpo_set(&drop_dpos[proto], DPO_DROP, proto, proto);
29 return (&drop_dpos[proto]);
33 dpo_is_drop (const dpo_id_t *dpo)
35 return (dpo->dpoi_type == DPO_DROP);
39 drop_dpo_lock (dpo_id_t *dpo)
42 * not maintaining a lock count on the drop
43 * more trouble than it's worth.
44 * There always needs to be one around. no point it managaing its lifetime
48 drop_dpo_unlock (dpo_id_t *dpo)
53 format_drop_dpo (u8 *s, va_list *ap)
55 CLIB_UNUSED(index_t index) = va_arg(*ap, index_t);
56 CLIB_UNUSED(u32 indent) = va_arg(*ap, u32);
58 return (format(s, "dpo-drop %U", format_dpo_proto, index));
61 const static dpo_vft_t drop_vft = {
62 .dv_lock = drop_dpo_lock,
63 .dv_unlock = drop_dpo_unlock,
64 .dv_format = format_drop_dpo,
68 * @brief The per-protocol VLIB graph nodes that are assigned to a drop
71 * this means that these graph nodes are ones from which a drop is the
72 * parent object in the DPO-graph.
74 const static char* const drop_ip4_nodes[] =
79 const static char* const drop_ip6_nodes[] =
84 const static char* const drop_mpls_nodes[] =
89 const static char* const drop_ethernet_nodes[] =
94 const static char* const drop_nsh_nodes[] =
99 const static char* const * const drop_nodes[DPO_PROTO_NUM] =
101 [DPO_PROTO_IP4] = drop_ip4_nodes,
102 [DPO_PROTO_IP6] = drop_ip6_nodes,
103 [DPO_PROTO_MPLS] = drop_mpls_nodes,
104 [DPO_PROTO_ETHERNET] = drop_ethernet_nodes,
105 [DPO_PROTO_NSH] = drop_nsh_nodes,
109 drop_dpo_module_init (void)
111 dpo_register(DPO_DROP, &drop_vft, drop_nodes);