2 * gbp.h : Group Based Policy
4 * Copyright (c) 2018 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #include <plugins/gbp/gbp_endpoint_group.h>
19 #include <plugins/gbp/gbp_endpoint.h>
21 #include <vnet/dpo/dvr_dpo.h>
22 #include <vnet/fib/fib_table.h>
25 * Pool of GBP endpoint_groups
27 gbp_endpoint_group_t *gbp_endpoint_group_pool;
30 * DB of endpoint_groups
32 gbp_endpoint_group_db_t gbp_endpoint_group_db;
34 gbp_endpoint_group_t *
35 gbp_endpoint_group_find (epg_id_t epg_id)
39 p = hash_get (gbp_endpoint_group_db.gepg_hash, epg_id);
42 return (pool_elt_at_index (gbp_endpoint_group_pool, p[0]));
48 gbp_endpoint_group_add (epg_id_t epg_id,
51 u32 ip6_table_id, u32 uplink_sw_if_index)
53 gbp_endpoint_group_t *gepg;
55 gepg = gbp_endpoint_group_find (epg_id);
59 fib_protocol_t fproto;
61 pool_get (gbp_endpoint_group_pool, gepg);
62 memset (gepg, 0, sizeof (*gepg));
64 gepg->gepg_id = epg_id;
65 gepg->gepg_bd = bd_id;
66 gepg->gepg_rd[FIB_PROTOCOL_IP4] = ip4_table_id;
67 gepg->gepg_rd[FIB_PROTOCOL_IP6] = ip6_table_id;
68 gepg->gepg_uplink_sw_if_index = uplink_sw_if_index;
71 * an egress DVR dpo for internal subnets to use when sending
72 * on the uplink interface
74 FOR_EACH_FIB_IP_PROTOCOL (fproto)
76 gepg->gepg_fib_index[fproto] =
77 fib_table_find_or_create_and_lock (fproto,
78 gepg->gepg_rd[fproto],
79 FIB_SOURCE_PLUGIN_HI);
81 if (~0 == gepg->gepg_fib_index[fproto])
83 return (VNET_API_ERROR_NO_SUCH_FIB);
86 dvr_dpo_add_or_lock (uplink_sw_if_index,
87 fib_proto_to_dpo (fproto),
88 &gepg->gepg_dpo[fproto]);
92 * packets direct from the uplink have had policy applied
94 l2input_intf_bitmap_enable (gepg->gepg_uplink_sw_if_index,
95 L2INPUT_FEAT_GBP_NULL_CLASSIFY, 1);
97 hash_set (gbp_endpoint_group_db.gepg_hash,
98 gepg->gepg_id, gepg - gbp_endpoint_group_pool);
106 gbp_endpoint_group_delete (epg_id_t epg_id)
108 gbp_endpoint_group_t *gepg;
111 p = hash_get (gbp_endpoint_group_db.gepg_hash, epg_id);
115 fib_protocol_t fproto;
117 gepg = pool_elt_at_index (gbp_endpoint_group_pool, p[0]);
119 l2input_intf_bitmap_enable (gepg->gepg_uplink_sw_if_index,
120 L2INPUT_FEAT_GBP_NULL_CLASSIFY, 0);
122 FOR_EACH_FIB_IP_PROTOCOL (fproto)
124 dpo_reset (&gepg->gepg_dpo[fproto]);
125 fib_table_unlock (gepg->gepg_fib_index[fproto],
126 fproto, FIB_SOURCE_PLUGIN_HI);
129 hash_unset (gbp_endpoint_group_db.gepg_hash, epg_id);
131 pool_put (gbp_endpoint_group_pool, gepg);
136 gbp_endpoint_group_walk (gbp_endpoint_group_cb_t cb, void *ctx)
138 gbp_endpoint_group_t *gbpe;
141 pool_foreach(gbpe, gbp_endpoint_group_pool,
149 static clib_error_t *
150 gbp_endpoint_group_cli (vlib_main_t * vm,
151 unformat_input_t * input, vlib_cli_command_t * cmd)
153 vnet_main_t *vnm = vnet_get_main ();
154 epg_id_t epg_id = EPG_INVALID;
155 u32 uplink_sw_if_index = ~0;
160 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
162 if (unformat (input, "%U", unformat_vnet_sw_interface,
163 vnm, &uplink_sw_if_index))
165 else if (unformat (input, "add"))
167 else if (unformat (input, "del"))
169 else if (unformat (input, "epg %d", &epg_id))
171 else if (unformat (input, "bd %d", &bd_id))
173 else if (unformat (input, "rd %d", &rd_id))
179 if (EPG_INVALID == epg_id)
180 return clib_error_return (0, "EPG-ID must be specified");
184 if (~0 == uplink_sw_if_index)
185 return clib_error_return (0, "interface must be specified");
187 return clib_error_return (0, "Bridge-domain must be specified");
189 return clib_error_return (0, "route-domain must be specified");
191 gbp_endpoint_group_add (epg_id, bd_id, rd_id, rd_id,
195 gbp_endpoint_group_delete (epg_id);
201 * Configure a GBP Endpoint Group
204 * @cliexstart{set gbp endpoint-group [del] epg <ID> bd <ID> <interface>}
208 VLIB_CLI_COMMAND (gbp_endpoint_group_cli_node, static) = {
209 .path = "gbp endpoint-group",
210 .short_help = "gbp endpoint-group [del] epg <ID> bd <ID> <interface>",
211 .function = gbp_endpoint_group_cli,
215 gbp_endpoint_group_show_one (gbp_endpoint_group_t *gepg, void *ctx)
217 vnet_main_t *vnm = vnet_get_main ();
221 vlib_cli_output (vm, " %d, bd:%d, ip4:%d ip6:%d uplink:%U",
224 gepg->gepg_rd[FIB_PROTOCOL_IP4],
225 gepg->gepg_rd[FIB_PROTOCOL_IP6],
226 format_vnet_sw_if_index_name, vnm, gepg->gepg_uplink_sw_if_index);
231 static clib_error_t *
232 gbp_endpoint_group_show (vlib_main_t * vm,
233 unformat_input_t * input, vlib_cli_command_t * cmd)
235 vlib_cli_output (vm, "Endpoint-Groups:");
236 gbp_endpoint_group_walk (gbp_endpoint_group_show_one, vm);
243 * Show Group Based Policy Endpoint_Groups and derived information
246 * @cliexstart{show gbp endpoint_group}
250 VLIB_CLI_COMMAND (gbp_endpoint_group_show_node, static) = {
251 .path = "show gbp endpoint-group",
252 .short_help = "show gbp endpoint-group\n",
253 .function = gbp_endpoint_group_show,
258 * fd.io coding-style-patch-verification: ON
261 * eval: (c-set-style "gnu")