2 * Copyright (c) 2015 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.
15 #include <vnet/ip/ip.h>
16 #include <vnet/classify/vnet_classify.h>
17 #include <vnet/classify/input_acl.h>
19 input_acl_main_t input_acl_main;
22 vnet_inacl_ip_feature_enable (vlib_main_t * vnm,
25 input_acl_table_id_t tid,
29 if (tid == INPUT_ACL_TABLE_L2)
31 l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_ACL,
36 vnet_feature_config_main_t *fcm;
39 if (tid == INPUT_ACL_TABLE_IP4)
41 vnet_feature_enable_disable ("ip4-unicast", "ip4-inacl",
42 sw_if_index, feature_enable, 0, 0);
43 arc = vnet_get_feature_arc_index ("ip4-unicast");
47 vnet_feature_enable_disable ("ip6-unicast", "ip6-inacl",
48 sw_if_index, feature_enable, 0, 0);
49 arc = vnet_get_feature_arc_index ("ip6-unicast");
52 fcm = vnet_get_feature_arc_config_main (arc);
53 am->vnet_config_main[tid] = &fcm->config_main;
59 int vnet_set_input_acl_intfc (vlib_main_t * vm, u32 sw_if_index,
62 u32 l2_table_index, u32 is_add)
64 input_acl_main_t * am = &input_acl_main;
65 vnet_classify_main_t * vcm = am->vnet_classify_main;
66 u32 acl[INPUT_ACL_N_TABLES] = {ip4_table_index, ip6_table_index,
70 /* Assume that we've validated sw_if_index in the API layer */
72 for (ti = 0; ti < INPUT_ACL_N_TABLES; ti++)
77 if (pool_is_free_index (vcm->tables, acl[ti]))
78 return VNET_API_ERROR_NO_SUCH_TABLE;
80 vec_validate_init_empty
81 (am->classify_table_index_by_sw_if_index[ti], sw_if_index, ~0);
83 /* Reject any DEL operation with wrong sw_if_index */
85 (acl[ti] != am->classify_table_index_by_sw_if_index[ti][sw_if_index]))
87 clib_warning ("Non-existent intf_idx=%d with table_index=%d for delete",
88 sw_if_index, acl[ti]);
89 return VNET_API_ERROR_NO_SUCH_TABLE;
92 /* Return ok on ADD operaton if feature is already enabled */
94 am->classify_table_index_by_sw_if_index[ti][sw_if_index] != ~0)
97 vnet_inacl_ip_feature_enable (vm, am, sw_if_index, ti, is_add);
100 am->classify_table_index_by_sw_if_index[ti][sw_if_index] = acl[ti];
102 am->classify_table_index_by_sw_if_index[ti][sw_if_index] = ~0;
108 static clib_error_t *
109 set_input_acl_command_fn (vlib_main_t * vm,
110 unformat_input_t * input,
111 vlib_cli_command_t * cmd)
113 vnet_main_t * vnm = vnet_get_main();
114 u32 sw_if_index = ~0;
115 u32 ip4_table_index = ~0;
116 u32 ip6_table_index = ~0;
117 u32 l2_table_index = ~0;
122 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
124 if (unformat (input, "intfc %U", unformat_vnet_sw_interface,
127 else if (unformat (input, "ip4-table %d", &ip4_table_index))
129 else if (unformat (input, "ip6-table %d", &ip6_table_index))
131 else if (unformat (input, "l2-table %d", &l2_table_index))
133 else if (unformat (input, "del"))
139 if (sw_if_index == ~0)
140 return clib_error_return (0, "Interface must be specified.");
143 return clib_error_return (0, "Table index should be specified.");
146 return clib_error_return (0, "Only one table index per API is allowed.");
148 rv = vnet_set_input_acl_intfc (vm, sw_if_index, ip4_table_index,
149 ip6_table_index, l2_table_index, is_add);
156 case VNET_API_ERROR_NO_MATCHING_INTERFACE:
157 return clib_error_return (0, "No such interface");
159 case VNET_API_ERROR_NO_SUCH_ENTRY:
160 return clib_error_return (0, "No such classifier table");
166 * Configure interface to enable/disble input ACL feature:
167 * intfc - interface name to be configured as input ACL
168 * Ip4-table <index> [del] - enable/disable IP4 input ACL
169 * Ip6-table <index> [del] - enable/disable IP6 input ACL
170 * l2-table <index> [del] - enable/disable Layer2 input ACL
172 * Note: Only one table index per API call is allowed.
175 VLIB_CLI_COMMAND (set_input_acl_command, static) = {
176 .path = "set interface input acl",
178 "set interface input acl intfc <int> [ip4-table <index>]\n"
179 " [ip6-table <index>] [l2-table <index>] [del]",
180 .function = set_input_acl_command_fn,
183 clib_error_t *input_acl_init (vlib_main_t *vm)
185 input_acl_main_t * am = &input_acl_main;
186 clib_error_t * error = 0;
188 if ((error = vlib_call_init_function (vm, ip_inacl_init)))
192 am->vnet_main = vnet_get_main();
193 am->vnet_classify_main = &vnet_classify_main;
198 VLIB_INIT_FUNCTION (input_acl_init);
200 uword unformat_acl_type (unformat_input_t * input, va_list * args)
202 u32 * acl_type = va_arg (*args, u32 *);
203 u32 tid = INPUT_ACL_N_TABLES;
205 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) {
206 if (unformat (input, "ip4"))
207 tid = INPUT_ACL_TABLE_IP4;
208 else if (unformat (input, "ip6"))
209 tid = INPUT_ACL_TABLE_IP6;
210 else if (unformat (input, "l2"))
211 tid = INPUT_ACL_TABLE_L2;
220 u8 * format_vnet_inacl_info (u8 * s, va_list * va)
222 input_acl_main_t * am = va_arg (*va, input_acl_main_t *);
223 int sw_if_idx = va_arg (*va, int);
224 u32 tid = va_arg (*va, u32);
228 s = format (s, "%10s%20s\t\t%s", "Intfc idx", "Classify table",
233 s = format (s, "%10d%20d\t\t%U", sw_if_idx, tid,
234 format_vnet_sw_if_index_name, am->vnet_main, sw_if_idx);
239 static clib_error_t *
240 show_inacl_command_fn (vlib_main_t * vm,
241 unformat_input_t * input,
242 vlib_cli_command_t * cmd)
244 input_acl_main_t * am = &input_acl_main;
245 u32 type = INPUT_ACL_N_TABLES;
249 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
251 if (unformat (input, "type %U", unformat_acl_type, &type))
257 if (type == INPUT_ACL_N_TABLES)
258 return clib_error_return (0, "Invalid input ACL table type.");
260 vec_tbl = am->classify_table_index_by_sw_if_index[type];
262 if (vec_len(vec_tbl))
263 vlib_cli_output (vm, "%U", format_vnet_inacl_info, am, ~0 /* hdr */, ~0);
265 vlib_cli_output (vm, "No input ACL tables configured");
267 for (i = 0; i < vec_len (vec_tbl); i++)
269 if (vec_elt(vec_tbl, i) == ~0)
272 vlib_cli_output (vm, "%U", format_vnet_inacl_info,
273 am, i, vec_elt(vec_tbl, i));
279 VLIB_CLI_COMMAND (show_inacl_command, static) = {
280 .path = "show inacl",
281 .short_help = "show inacl type [ip4|ip6|l2]",
282 .function = show_inacl_command_fn,