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 * @brief LISP-GPE definitions.
20 #ifndef included_vnet_lisp_gpe_h
21 #define included_vnet_lisp_gpe_h
23 #include <vppinfra/error.h>
24 #include <vppinfra/mhash.h>
25 #include <vnet/vnet.h>
26 #include <vnet/ip/ip.h>
27 #include <vnet/l2/l2_input.h>
28 #include <vnet/ethernet/ethernet.h>
29 #include <vnet/ip/ip4_packet.h>
30 #include <vnet/udp/udp_packet.h>
31 #include <vnet/udp/udp_local.h>
32 #include <lisp/lisp-cp/lisp_types.h>
33 #include <lisp/lisp-gpe/lisp_gpe_packet.h>
34 #include <vnet/adj/adj_types.h>
35 #include <vppinfra/bihash_24_8.h>
36 #include <vppinfra/bihash_template.h>
38 /** IP4-UDP-LISP encap header */
39 typedef CLIB_PACKED (struct {
40 ip4_header_t ip4; /* 20 bytes */
41 udp_header_t udp; /* 8 bytes */
42 lisp_gpe_header_t lisp; /* 8 bytes */
43 }) ip4_udp_lisp_gpe_header_t;
45 /** IP6-UDP-LISP encap header */
46 typedef CLIB_PACKED (struct {
47 ip6_header_t ip6; /* 40 bytes */
48 udp_header_t udp; /* 8 bytes */
49 lisp_gpe_header_t lisp; /* 8 bytes */
50 }) ip6_udp_lisp_gpe_header_t;
52 #define foreach_lisp_gpe_ip_input_next \
53 _(DROP, "error-drop") \
54 _(IP4_INPUT, "ip4-input") \
55 _(IP6_INPUT, "ip6-input") \
56 _(L2_INPUT, "l2-input")
58 /** Enum of possible next nodes post LISP-GPE decap */
61 #define _(s,n) LISP_GPE_INPUT_NEXT_##s,
62 foreach_lisp_gpe_ip_input_next
64 LISP_GPE_INPUT_N_NEXT,
65 } lisp_gpe_input_next_t;
67 /* Arc to nsh-input added only if nsh-input exists */
68 #define LISP_GPE_INPUT_NEXT_NSH_INPUT 4
72 #define lisp_gpe_error(n,s) LISP_GPE_ERROR_##n,
73 #include <lisp/lisp-gpe/lisp_gpe_error.def>
78 typedef struct tunnel_lookup
80 /** Lookup lisp-gpe interfaces by dp table (eg. vrf/bridge index) */
81 uword *hw_if_index_by_dp_table;
83 /** lookup decap tunnel termination sw_if_index by vni and vice versa */
84 uword *sw_if_index_by_vni;
87 uword *vni_by_sw_if_index;
101 ip_address_t loc_rloc;
102 ip_address_t rmt_rloc;
104 vlib_counter_t counters;
107 typedef enum gpe_encap_mode_e
114 /** LISP-GPE global state*/
115 typedef struct lisp_gpe_main
118 * @brief DB of all forwarding entries. The Key is:{l-EID,r-EID,vni}
119 * where the EID encodes L2 or L3
121 uword *lisp_gpe_fwd_entries;
124 * @brief A Pool of all LISP forwarding entries
126 struct lisp_gpe_fwd_entry_t_ *lisp_fwd_entry_pool;
128 /** Free vlib hw_if_indices */
129 u32 *free_tunnel_hw_if_indices;
133 /* L3 data structures
134 * ================== */
135 tunnel_lookup_t l3_ifaces;
137 /* L2 data structures
138 * ================== */
141 BVT (clib_bihash) l2_fib;
143 tunnel_lookup_t l2_ifaces;
145 /** Load-balance for a miss in the table */
146 dpo_id_t l2_lb_cp_lkup;
148 /* NSH data structures
149 * ================== */
151 BVT (clib_bihash) nsh_fib;
153 tunnel_lookup_t nsh_ifaces;
155 const dpo_id_t *nsh_cp_lkup;
157 gpe_encap_mode_t encap_mode;
159 u8 *placeholder_stats_pool;
160 uword *lisp_stats_index_by_key;
161 vlib_combined_counter_main_t counters;
163 /** Native fwd data structures */
164 fib_route_path_t *native_fwd_rpath[2];
165 u32 *native_fwd_lfes[2];
168 vlib_main_t *vlib_main;
169 vnet_main_t *vnet_main;
172 ip_lookup_main_t *lm4;
173 ip_lookup_main_t *lm6;
176 /** LISP-GPE global state*/
177 extern lisp_gpe_main_t lisp_gpe_main;
179 always_inline lisp_gpe_main_t *
180 vnet_lisp_gpe_get_main ()
182 return &lisp_gpe_main;
186 extern vlib_node_registration_t lisp_gpe_ip4_input_node;
187 extern vlib_node_registration_t lisp_gpe_ip6_input_node;
188 extern vnet_hw_interface_class_t lisp_gpe_hw_class;
190 u8 *format_lisp_gpe_header_with_length (u8 * s, va_list * args);
192 /** Read LISP-GPE status */
193 u8 vnet_lisp_gpe_enable_disable_status (void);
196 lisp_gpe_l3_iface_find_or_create (lisp_gpe_main_t * lgm,
197 u32 overlay_table_id, u32 vni);
199 /** Add/del LISP-GPE interface. */
200 extern void lisp_gpe_del_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id);
201 extern u32 lisp_gpe_add_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id);
202 extern void lisp_gpe_del_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id);
203 extern u32 lisp_gpe_add_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id,
204 u8 with_default_route);
210 } vnet_lisp_gpe_enable_disable_args_t;
213 * vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a);
221 } negative_fwd_actions_e;
226 /** forwarding entry index of */
233 /** type of mapping */
236 /** action for negative mappings */
237 negative_fwd_actions_e action;
240 gid_address_t lcl_eid;
243 gid_address_t rmt_eid;
245 /** vector of locator pairs */
246 locator_pair_t *locator_pairs;
248 /** FIB index to lookup remote locator at encap */
251 /** FIB index to lookup inner IP at decap */
255 u32 decap_next_index;
257 /** VNI/tenant id in HOST byte order */
260 /** vrf or bd where fwd entry should be inserted */
263 /** table (vrf) id */
266 /** bridge domain id */
269 /** generic access */
272 } vnet_lisp_gpe_add_del_fwd_entry_args_t;
276 fib_route_path_t rpath;
278 } vnet_gpe_native_fwd_rpath_args_t;
288 } lisp_api_gpe_fwd_entry_t;
290 #define foreach_lgpe_ip4_lookup_next \
291 _(DROP, "error-drop") \
292 _(LISP_CP_LOOKUP, "lisp-cp-lookup")
294 typedef enum lgpe_ip4_lookup_next
296 #define _(sym,str) LGPE_IP4_LOOKUP_NEXT_##sym,
297 foreach_lgpe_ip4_lookup_next
299 LGPE_IP4_LOOKUP_N_NEXT,
300 } lgpe_ip4_lookup_next_t;
302 #define foreach_lgpe_ip6_lookup_next \
303 _(DROP, "error-drop") \
304 _(LISP_CP_LOOKUP, "lisp-cp-lookup")
306 typedef enum lgpe_ip6_lookup_next
308 #define _(sym,str) LGPE_IP6_LOOKUP_NEXT_##sym,
309 foreach_lgpe_ip6_lookup_next
311 LGPE_IP6_LOOKUP_N_NEXT,
312 } lgpe_ip6_lookup_next_t;
314 u8 *format_vnet_lisp_gpe_status (u8 * s, va_list * args);
316 lisp_api_gpe_fwd_entry_t *vnet_lisp_gpe_fwd_entries_get_by_vni (u32 vni);
317 gpe_encap_mode_t vnet_gpe_get_encap_mode (void);
318 int vnet_gpe_set_encap_mode (gpe_encap_mode_t mode);
320 u8 vnet_lisp_stats_enable_disable_state (void);
321 vnet_api_error_t vnet_lisp_stats_enable_disable (u8 enable);
322 lisp_api_stats_t *vnet_lisp_get_stats (void);
323 int vnet_lisp_flush_stats (void);
324 int vnet_gpe_add_del_native_fwd_rpath (vnet_gpe_native_fwd_rpath_args_t * a);
325 u32 vnet_lisp_gpe_add_nsh_iface (lisp_gpe_main_t * lgm);
326 void vnet_lisp_gpe_del_nsh_iface (lisp_gpe_main_t * lgm);
328 #endif /* included_vnet_lisp_gpe_h */
331 * fd.io coding-style-patch-verification: ON
334 * eval: (c-set-style "gnu")