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/devices/dpdk/dpdk.h>
17 #define foreach_ipsec_policy_action \
18 _(0, BYPASS, "bypass") \
19 _(1, DISCARD, "discard") \
20 _(2, RESOLVE, "resolve") \
21 _(3, PROTECT, "protect")
24 #define _(v,f,s) IPSEC_POLICY_ACTION_##f = v,
25 foreach_ipsec_policy_action
27 IPSEC_POLICY_N_ACTION,
28 } ipsec_policy_action_t;
30 #define foreach_ipsec_crypto_alg \
32 _(1, AES_CBC_128, "aes-cbc-128") \
33 _(2, AES_CBC_192, "aes-cbc-192") \
34 _(3, AES_CBC_256, "aes-cbc-256")
37 #define _(v,f,s) IPSEC_CRYPTO_ALG_##f = v,
38 foreach_ipsec_crypto_alg
43 #define foreach_ipsec_integ_alg \
45 _(1, MD5_96, "md5-96") /* RFC2403 */ \
46 _(2, SHA1_96, "sha1-96") /* RFC2404 */ \
47 _(3, SHA_256_96, "sha-256-96") /* draft-ietf-ipsec-ciph-sha-256-00 */ \
48 _(4, SHA_256_128, "sha-256-128") /* RFC4868 */ \
49 _(5, SHA_384_192, "sha-384-192") /* RFC4868 */ \
50 _(6, SHA_512_256, "sha-512-256") /* RFC4868 */
53 #define _(v,f,s) IPSEC_INTEG_ALG_##f = v,
54 foreach_ipsec_integ_alg
60 IPSEC_PROTOCOL_AH = 0,
61 IPSEC_PROTOCOL_ESP = 1
67 ipsec_protocol_t protocol;
69 ipsec_crypto_alg_t crypto_alg;
73 ipsec_integ_alg_t integ_alg;
82 ip46_address_t tunnel_src_addr;
83 ip46_address_t tunnel_dst_addr;
94 ip46_address_t start, stop;
95 } ip46_address_range_t;
105 ip4_address_t local_ip, remote_ip;
108 } ipsec_add_del_tunnel_args_t;
111 IPSEC_IF_SET_KEY_TYPE_NONE,
112 IPSEC_IF_SET_KEY_TYPE_LOCAL_CRYPTO,
113 IPSEC_IF_SET_KEY_TYPE_REMOTE_CRYPTO,
114 IPSEC_IF_SET_KEY_TYPE_LOCAL_INTEG,
115 IPSEC_IF_SET_KEY_TYPE_REMOTE_INTEG,
116 } ipsec_if_set_key_type_t;
125 ip46_address_range_t laddr;
126 ip46_address_range_t raddr;
137 vlib_counter_t counter;
142 /* pool of policies */
143 ipsec_policy_t * policies;
144 /* vectors of policy indices */
145 u32 * ipv4_outbound_policies;
146 u32 * ipv6_outbound_policies;
147 u32 * ipv4_inbound_protect_policy_indices;
148 u32 * ipv4_inbound_policy_discard_and_bypass_indices;
149 u32 * ipv6_inbound_protect_policy_indices;
150 u32 * ipv6_inbound_policy_discard_and_bypass_indices;
155 } ip4_ipsec_config_t;
159 } ip6_ipsec_config_t;
168 /* pool of tunnel instances */
172 /* pool of tunnel interfaces */
173 ipsec_tunnel_if_t * tunnel_interfaces;
174 u32 * free_tunnel_if_indices;
178 uword * tunnel_index_by_key;
181 vlib_main_t *vlib_main;
182 vnet_main_t *vnet_main;
184 /* next node indices */
185 u32 feature_next_node_index[32];
188 uword * spd_index_by_spd_id;
189 uword * spd_index_by_sw_if_index;
190 uword * sa_index_by_sa_id;
191 uword * ipsec_if_pool_index_by_key;
194 u32 error_drop_node_index;
195 u32 ip4_lookup_node_index;
196 u32 esp_encrypt_node_index;
200 ipsec_main_t ipsec_main;
202 vlib_node_registration_t ipsec_input_ip4_node;
203 vlib_node_registration_t ipsec_input_ip6_node;
204 vlib_node_registration_t ipsec_output_node;
205 vlib_node_registration_t esp_encrypt_node;
206 vlib_node_registration_t esp_decrypt_node;
207 vlib_node_registration_t ipsec_if_output_node;
208 vlib_node_registration_t ipsec_if_input_node;
214 int ipsec_set_interface_spd(vlib_main_t * vm, u32 sw_if_index, u32 spd_id, int is_add);
215 int ipsec_add_del_spd(vlib_main_t * vm, u32 spd_id, int is_add);
216 int ipsec_add_del_policy(vlib_main_t * vm, ipsec_policy_t * policy, int is_add);
217 int ipsec_add_del_sa(vlib_main_t * vm, ipsec_sa_t * new_sa, int is_add);
218 int ipsec_set_sa_key(vlib_main_t * vm, ipsec_sa_t * sa_update);
220 u8 * format_ipsec_if_output_trace (u8 * s, va_list * args);
221 u8 * format_ipsec_policy_action (u8 * s, va_list * args);
222 u8 * format_ipsec_crypto_alg (u8 * s, va_list * args);
223 u8 * format_ipsec_integ_alg (u8 * s, va_list * args);
224 u8 * format_ipsec_replay_window(u8 * s, va_list * args);
225 uword unformat_ipsec_policy_action (unformat_input_t * input, va_list * args);
226 uword unformat_ipsec_crypto_alg (unformat_input_t * input, va_list * args);
227 uword unformat_ipsec_integ_alg (unformat_input_t * input, va_list * args);
229 u32 ipsec_add_del_tunnel_if (vnet_main_t * vnm, ipsec_add_del_tunnel_args_t * args);
230 int ipsec_set_interface_key(vnet_main_t * vnm, u32 hw_if_index, ipsec_if_set_key_type_t type, u8 alg, u8 * key);
238 ipsec_alloc_empty_buffers(vlib_main_t * vm, ipsec_main_t *im)
240 dpdk_main_t * dm = &dpdk_main;
241 u32 free_list_index = dm->vlib_buffer_free_list_index;
243 uword l = vec_len (im->empty_buffers);
246 if (PREDICT_FALSE(l < VLIB_FRAME_SIZE))
248 if (!im->empty_buffers) {
249 vec_alloc (im->empty_buffers, 2 * VLIB_FRAME_SIZE );
252 n_alloc = vlib_buffer_alloc_from_free_list (vm, im->empty_buffers + l,
253 2 * VLIB_FRAME_SIZE - l,
256 _vec_len (im->empty_buffers) = l + n_alloc;
260 static_always_inline u32 /* FIXME move to interface???.h */
261 get_next_output_feature_node_index( vnet_main_t * vnm,
264 vlib_main_t * vm = vlib_get_main();
267 intf_output_feat_t next_feature;
269 u8 * node_names[] = {
270 #define _(sym, str) (u8 *) str,
271 foreach_intf_output_feat
275 count_trailing_zeros(next_feature, vnet_buffer(b)->output_features.bitmap);
277 if (next_feature >= INTF_OUTPUT_FEAT_DONE)
279 u32 sw_if_index = vnet_buffer(b)->sw_if_index[VLIB_TX];
280 vnet_hw_interface_t * hw = vnet_get_sup_hw_interface(vnm, sw_if_index);
281 r = hw->output_node_index;
285 vnet_buffer(b)->output_features.bitmap &= ~(1 << next_feature);
287 node = vlib_get_node_by_name(vm, node_names[next_feature]);