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,
23 input_acl_main_t * am,
25 input_acl_table_id_t tid, int feature_enable)
28 if (tid == INPUT_ACL_TABLE_L2)
30 l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_ACL,
35 vnet_feature_config_main_t *fcm;
38 if (tid == INPUT_ACL_TABLE_IP4)
40 vnet_feature_enable_disable ("ip4-unicast", "ip4-inacl",
41 sw_if_index, feature_enable, 0, 0);
42 arc = vnet_get_feature_arc_index ("ip4-unicast");
46 vnet_feature_enable_disable ("ip6-unicast", "ip6-inacl",
47 sw_if_index, feature_enable, 0, 0);
48 arc = vnet_get_feature_arc_index ("ip6-unicast");
51 fcm = vnet_get_feature_arc_config_main (arc);
52 am->vnet_config_main[tid] = &fcm->config_main;
59 vnet_set_input_acl_intfc (vlib_main_t * vm, u32 sw_if_index,
61 u32 ip6_table_index, u32 l2_table_index, u32 is_add)
63 input_acl_main_t *am = &input_acl_main;
64 vnet_classify_main_t *vcm = am->vnet_classify_main;
65 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 */
86 am->classify_table_index_by_sw_if_index[ti][sw_if_index]))
89 ("Non-existent intf_idx=%d with table_index=%d for delete",
90 sw_if_index, acl[ti]);
91 return VNET_API_ERROR_NO_SUCH_TABLE;
94 /* Return ok on ADD operaton if feature is already enabled */
96 am->classify_table_index_by_sw_if_index[ti][sw_if_index] != ~0)
99 vnet_inacl_ip_feature_enable (vm, am, sw_if_index, ti, is_add);
102 am->classify_table_index_by_sw_if_index[ti][sw_if_index] = acl[ti];
104 am->classify_table_index_by_sw_if_index[ti][sw_if_index] = ~0;
110 static clib_error_t *
111 set_input_acl_command_fn (vlib_main_t * vm,
112 unformat_input_t * input, vlib_cli_command_t * cmd)
114 vnet_main_t *vnm = vnet_get_main ();
115 u32 sw_if_index = ~0;
116 u32 ip4_table_index = ~0;
117 u32 ip6_table_index = ~0;
118 u32 l2_table_index = ~0;
123 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
125 if (unformat (input, "intfc %U", unformat_vnet_sw_interface,
128 else if (unformat (input, "ip4-table %d", &ip4_table_index))
130 else if (unformat (input, "ip6-table %d", &ip6_table_index))
132 else if (unformat (input, "l2-table %d", &l2_table_index))
134 else if (unformat (input, "del"))
140 if (sw_if_index == ~0)
141 return clib_error_return (0, "Interface must be specified.");
144 return clib_error_return (0, "Table index should be specified.");
147 return clib_error_return (0, "Only one table index per API is allowed.");
149 rv = vnet_set_input_acl_intfc (vm, sw_if_index, ip4_table_index,
150 ip6_table_index, l2_table_index, is_add);
157 case VNET_API_ERROR_NO_MATCHING_INTERFACE:
158 return clib_error_return (0, "No such interface");
160 case VNET_API_ERROR_NO_SUCH_ENTRY:
161 return clib_error_return (0, "No such classifier table");
167 * Configure interface to enable/disble input ACL feature:
168 * intfc - interface name to be configured as input ACL
169 * Ip4-table <index> [del] - enable/disable IP4 input ACL
170 * Ip6-table <index> [del] - enable/disable IP6 input ACL
171 * l2-table <index> [del] - enable/disable Layer2 input ACL
173 * Note: Only one table index per API call is allowed.
177 VLIB_CLI_COMMAND (set_input_acl_command, static) = {
178 .path = "set interface input acl",
180 "set interface input acl intfc <int> [ip4-table <index>]\n"
181 " [ip6-table <index>] [l2-table <index>] [del]",
182 .function = set_input_acl_command_fn,
187 input_acl_init (vlib_main_t * vm)
189 input_acl_main_t *am = &input_acl_main;
190 clib_error_t *error = 0;
192 if ((error = vlib_call_init_function (vm, ip_inacl_init)))
196 am->vnet_main = vnet_get_main ();
197 am->vnet_classify_main = &vnet_classify_main;
202 VLIB_INIT_FUNCTION (input_acl_init);
205 unformat_acl_type (unformat_input_t * input, va_list * args)
207 u32 *acl_type = va_arg (*args, u32 *);
208 u32 tid = INPUT_ACL_N_TABLES;
210 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
212 if (unformat (input, "ip4"))
213 tid = INPUT_ACL_TABLE_IP4;
214 else if (unformat (input, "ip6"))
215 tid = INPUT_ACL_TABLE_IP6;
216 else if (unformat (input, "l2"))
217 tid = INPUT_ACL_TABLE_L2;
227 format_vnet_inacl_info (u8 * s, va_list * va)
229 input_acl_main_t *am = va_arg (*va, input_acl_main_t *);
230 int sw_if_idx = va_arg (*va, int);
231 u32 tid = va_arg (*va, u32);
235 s = format (s, "%10s%20s\t\t%s", "Intfc idx", "Classify table",
240 s = format (s, "%10d%20d\t\t%U", sw_if_idx, tid,
241 format_vnet_sw_if_index_name, am->vnet_main, sw_if_idx);
246 static clib_error_t *
247 show_inacl_command_fn (vlib_main_t * vm,
248 unformat_input_t * input, vlib_cli_command_t * cmd)
250 input_acl_main_t *am = &input_acl_main;
251 u32 type = INPUT_ACL_N_TABLES;
255 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
257 if (unformat (input, "type %U", unformat_acl_type, &type))
263 if (type == INPUT_ACL_N_TABLES)
264 return clib_error_return (0, "Invalid input ACL table type.");
266 vec_tbl = am->classify_table_index_by_sw_if_index[type];
268 if (vec_len (vec_tbl))
269 vlib_cli_output (vm, "%U", format_vnet_inacl_info, am, ~0 /* hdr */ , ~0);
271 vlib_cli_output (vm, "No input ACL tables configured");
273 for (i = 0; i < vec_len (vec_tbl); i++)
275 if (vec_elt (vec_tbl, i) == ~0)
278 vlib_cli_output (vm, "%U", format_vnet_inacl_info,
279 am, i, vec_elt (vec_tbl, i));
286 VLIB_CLI_COMMAND (show_inacl_command, static) = {
287 .path = "show inacl",
288 .short_help = "show inacl type [ip4|ip6|l2]",
289 .function = show_inacl_command_fn,
294 * fd.io coding-style-patch-verification: ON
297 * eval: (c-set-style "gnu")