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Ed Warnickecb9cada2015-12-08 15:45:58 -07001/*
Florin Corase127a7e2016-02-18 22:20:01 +01002 * Copyright (c) 2016 Cisco and/or its affiliates.
Ed Warnickecb9cada2015-12-08 15:45:58 -07003 * 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:
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
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.
14 */
Florin Corasff0bf132016-09-05 19:30:35 +020015/**
16 * @file
17 * @brief LISP-GPE definitions.
18 */
Florin Corase127a7e2016-02-18 22:20:01 +010019
Ed Warnickecb9cada2015-12-08 15:45:58 -070020#ifndef included_vnet_lisp_gpe_h
21#define included_vnet_lisp_gpe_h
22
23#include <vppinfra/error.h>
Florin Corase127a7e2016-02-18 22:20:01 +010024#include <vppinfra/mhash.h>
Ed Warnickecb9cada2015-12-08 15:45:58 -070025#include <vnet/vnet.h>
26#include <vnet/ip/ip.h>
27#include <vnet/l2/l2_input.h>
28#include <vnet/ethernet/ethernet.h>
Ed Warnickecb9cada2015-12-08 15:45:58 -070029#include <vnet/ip/ip4_packet.h>
Dave Barach68b0fb02017-02-28 15:15:56 -050030#include <vnet/udp/udp.h>
Florin Corase127a7e2016-02-18 22:20:01 +010031#include <vnet/lisp-cp/lisp_types.h>
32#include <vnet/lisp-gpe/lisp_gpe_packet.h>
Neale Ranns0bfe5d82016-08-25 15:29:12 +010033#include <vnet/adj/adj_types.h>
Dave Barach68b0fb02017-02-28 15:15:56 -050034#include <vppinfra/bihash_24_8.h>
35#include <vppinfra/bihash_template.h>
Florin Corase127a7e2016-02-18 22:20:01 +010036
Florin Corasff0bf132016-09-05 19:30:35 +020037/** IP4-UDP-LISP encap header */
Florin Coras220beac2016-08-16 23:04:00 +020038/* *INDENT-OFF* */
Ed Warnickecb9cada2015-12-08 15:45:58 -070039typedef 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;
Florin Coras220beac2016-08-16 23:04:00 +020044/* *INDENT-ON* */
Ed Warnickecb9cada2015-12-08 15:45:58 -070045
Florin Corasff0bf132016-09-05 19:30:35 +020046/** IP6-UDP-LISP encap header */
Florin Coras220beac2016-08-16 23:04:00 +020047/* *INDENT-OFF* */
Florin Coras02655bd2016-04-26 00:17:24 +020048typedef CLIB_PACKED (struct {
49 ip6_header_t ip6; /* 40 bytes */
50 udp_header_t udp; /* 8 bytes */
51 lisp_gpe_header_t lisp; /* 8 bytes */
52}) ip6_udp_lisp_gpe_header_t;
Florin Coras220beac2016-08-16 23:04:00 +020053/* *INDENT-ON* */
Florin Coras02655bd2016-04-26 00:17:24 +020054
Florin Coras02655bd2016-04-26 00:17:24 +020055#define foreach_lisp_gpe_ip_input_next \
Ed Warnickecb9cada2015-12-08 15:45:58 -070056_(DROP, "error-drop") \
57_(IP4_INPUT, "ip4-input") \
58_(IP6_INPUT, "ip6-input") \
Florin Coras1a1adc72016-07-22 01:45:30 +020059_(L2_INPUT, "l2-input")
Ed Warnickecb9cada2015-12-08 15:45:58 -070060
Florin Corasff0bf132016-09-05 19:30:35 +020061/** Enum of possible next nodes post LISP-GPE decap */
Florin Coras220beac2016-08-16 23:04:00 +020062typedef enum
63{
Ed Warnickecb9cada2015-12-08 15:45:58 -070064#define _(s,n) LISP_GPE_INPUT_NEXT_##s,
Florin Coras02655bd2016-04-26 00:17:24 +020065 foreach_lisp_gpe_ip_input_next
Ed Warnickecb9cada2015-12-08 15:45:58 -070066#undef _
Florin Coras220beac2016-08-16 23:04:00 +020067 LISP_GPE_INPUT_N_NEXT,
Ed Warnickecb9cada2015-12-08 15:45:58 -070068} lisp_gpe_input_next_t;
69
Florin Coras263440e2017-02-22 23:38:08 -080070/* Arc to nsh-input added only if nsh-input exists */
71#define LISP_GPE_INPUT_NEXT_NSH_INPUT 4
72
Florin Coras220beac2016-08-16 23:04:00 +020073typedef enum
74{
Ed Warnickecb9cada2015-12-08 15:45:58 -070075#define lisp_gpe_error(n,s) LISP_GPE_ERROR_##n,
76#include <vnet/lisp-gpe/lisp_gpe_error.def>
77#undef lisp_gpe_error
78 LISP_GPE_N_ERROR,
Florin Coras577c3552016-04-21 00:45:40 +020079} lisp_gpe_error_t;
Ed Warnickecb9cada2015-12-08 15:45:58 -070080
Florin Coras1a1adc72016-07-22 01:45:30 +020081typedef struct tunnel_lookup
82{
Florin Corasff0bf132016-09-05 19:30:35 +020083 /** Lookup lisp-gpe interfaces by dp table (eg. vrf/bridge index) */
Florin Coras220beac2016-08-16 23:04:00 +020084 uword *hw_if_index_by_dp_table;
Florin Coras1a1adc72016-07-22 01:45:30 +020085
Florin Corasff0bf132016-09-05 19:30:35 +020086 /** lookup decap tunnel termination sw_if_index by vni and vice versa */
Florin Coras220beac2016-08-16 23:04:00 +020087 uword *sw_if_index_by_vni;
Neale Ranns0bfe5d82016-08-25 15:29:12 +010088
89 // FIXME - Need this?
Florin Coras220beac2016-08-16 23:04:00 +020090 uword *vni_by_sw_if_index;
Florin Coras1a1adc72016-07-22 01:45:30 +020091} tunnel_lookup_t;
92
Filip Tehlar4868ff62017-03-09 16:48:39 +010093typedef struct
94{
95 u32 fwd_entry_index;
96 u32 tunnel_index;
97} lisp_stats_key_t;
98
99typedef struct
100{
Filip Tehlar4868ff62017-03-09 16:48:39 +0100101 u32 vni;
102 dp_address_t deid;
103 dp_address_t seid;
104 ip_address_t loc_rloc;
105 ip_address_t rmt_rloc;
106
Filip Tehlar21511912017-04-07 10:41:42 +0200107 vlib_counter_t counters;
Filip Tehlar4868ff62017-03-09 16:48:39 +0100108} lisp_api_stats_t;
Filip Tehlar3e7b56932017-02-21 18:28:34 +0100109
110typedef enum gpe_encap_mode_e
111{
112 GPE_ENCAP_LISP,
113 GPE_ENCAP_VXLAN,
114 GPE_ENCAP_COUNT
115} gpe_encap_mode_t;
116
Florin Corasff0bf132016-09-05 19:30:35 +0200117/** LISP-GPE global state*/
Florin Corase127a7e2016-02-18 22:20:01 +0100118typedef struct lisp_gpe_main
119{
Neale Ranns5e575b12016-10-03 09:40:25 +0100120 /**
121 * @brief DB of all forwarding entries. The Key is:{l-EID,r-EID,vni}
122 * where the EID encodes L2 or L3
123 */
124 uword *lisp_gpe_fwd_entries;
125
126 /**
127 * @brief A Pool of all LISP forwarding entries
128 */
129 struct lisp_gpe_fwd_entry_t_ *lisp_fwd_entry_pool;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700130
Florin Corasff0bf132016-09-05 19:30:35 +0200131 /** Free vlib hw_if_indices */
Florin Coras220beac2016-08-16 23:04:00 +0200132 u32 *free_tunnel_hw_if_indices;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700133
Florin Coras1a1adc72016-07-22 01:45:30 +0200134 u8 is_en;
135
136 /* L3 data structures
137 * ================== */
Florin Coras1a1adc72016-07-22 01:45:30 +0200138 tunnel_lookup_t l3_ifaces;
Florin Coras577c3552016-04-21 00:45:40 +0200139
Florin Coras1a1adc72016-07-22 01:45:30 +0200140 /* L2 data structures
141 * ================== */
142
Florin Corasff0bf132016-09-05 19:30:35 +0200143 /** L2 LISP FIB */
Florin Coras220beac2016-08-16 23:04:00 +0200144 BVT (clib_bihash) l2_fib;
Florin Coras1a1adc72016-07-22 01:45:30 +0200145
146 tunnel_lookup_t l2_ifaces;
147
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100148 /** Load-balance for a miss in the table */
Neale Ranns5e575b12016-10-03 09:40:25 +0100149 dpo_id_t l2_lb_cp_lkup;
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100150
Florin Corasce1b4c72017-01-26 14:25:34 -0800151 /* NSH data structures
152 * ================== */
153
154 BVT (clib_bihash) nsh_fib;
155
156 tunnel_lookup_t nsh_ifaces;
157
158 const dpo_id_t *nsh_cp_lkup;
159
Filip Tehlar3e7b56932017-02-21 18:28:34 +0100160 gpe_encap_mode_t encap_mode;
161
Filip Tehlar21511912017-04-07 10:41:42 +0200162 u8 *dummy_stats_pool;
Filip Tehlar4868ff62017-03-09 16:48:39 +0100163 uword *lisp_stats_index_by_key;
Filip Tehlar21511912017-04-07 10:41:42 +0200164 vlib_combined_counter_main_t counters;
Filip Tehlar4868ff62017-03-09 16:48:39 +0100165
Florin Corasff0bf132016-09-05 19:30:35 +0200166 /** convenience */
Florin Coras220beac2016-08-16 23:04:00 +0200167 vlib_main_t *vlib_main;
168 vnet_main_t *vnet_main;
169 ip4_main_t *im4;
170 ip6_main_t *im6;
171 ip_lookup_main_t *lm4;
172 ip_lookup_main_t *lm6;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700173} lisp_gpe_main_t;
174
Florin Corasff0bf132016-09-05 19:30:35 +0200175/** LISP-GPE global state*/
Ed Warnickecb9cada2015-12-08 15:45:58 -0700176lisp_gpe_main_t lisp_gpe_main;
177
Florin Coras1a1adc72016-07-22 01:45:30 +0200178always_inline lisp_gpe_main_t *
Florin Coras220beac2016-08-16 23:04:00 +0200179vnet_lisp_gpe_get_main ()
180{
Florin Coras1a1adc72016-07-22 01:45:30 +0200181 return &lisp_gpe_main;
182}
183
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100184
Florin Coras02655bd2016-04-26 00:17:24 +0200185extern vlib_node_registration_t lisp_gpe_ip4_input_node;
186extern vlib_node_registration_t lisp_gpe_ip6_input_node;
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100187extern vnet_hw_interface_class_t lisp_gpe_hw_class;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700188
Florin Coras220beac2016-08-16 23:04:00 +0200189u8 *format_lisp_gpe_header_with_length (u8 * s, va_list * args);
Ed Warnickecb9cada2015-12-08 15:45:58 -0700190
Florin Corasff0bf132016-09-05 19:30:35 +0200191/** Read LISP-GPE status */
Florin Coras220beac2016-08-16 23:04:00 +0200192u8 vnet_lisp_gpe_enable_disable_status (void);
Florin Corasff0bf132016-09-05 19:30:35 +0200193
Neale Ranns5e575b12016-10-03 09:40:25 +0100194u32
195lisp_gpe_l3_iface_find_or_create (lisp_gpe_main_t * lgm,
196 u32 overlay_table_id, u32 vni);
197
Florin Corasff0bf132016-09-05 19:30:35 +0200198/** Add/del LISP-GPE interface. */
Neale Ranns5e575b12016-10-03 09:40:25 +0100199extern void lisp_gpe_del_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id);
200extern u32 lisp_gpe_add_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id);
201extern void lisp_gpe_del_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id);
202extern u32 lisp_gpe_add_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id);
203
Florin Corase127a7e2016-02-18 22:20:01 +0100204
Florin Coras577c3552016-04-21 00:45:40 +0200205typedef struct
206{
207 u8 is_en;
208} vnet_lisp_gpe_enable_disable_args_t;
209
Florin Coras220beac2016-08-16 23:04:00 +0200210clib_error_t
211 * vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a);
Florin Coras577c3552016-04-21 00:45:40 +0200212
Neale Ranns5e575b12016-10-03 09:40:25 +0100213typedef enum
214{
215 NO_ACTION,
216 FORWARD_NATIVE,
217 SEND_MAP_REQUEST,
218 DROP
219} negative_fwd_actions_e;
220
Florin Corasff0bf132016-09-05 19:30:35 +0200221/** */
Florin Corase127a7e2016-02-18 22:20:01 +0100222typedef struct
223{
Filip Tehlared6b52b2017-03-22 09:02:33 +0100224 u8 is_src_dst;
225
Florin Corase127a7e2016-02-18 22:20:01 +0100226 u8 is_add;
Florin Corased09a052016-05-06 14:22:40 +0200227
Florin Corasff0bf132016-09-05 19:30:35 +0200228 /** type of mapping */
Florin Corase127a7e2016-02-18 22:20:01 +0100229 u8 is_negative;
Florin Corasff0bf132016-09-05 19:30:35 +0200230
231 /** action for negative mappings */
Neale Ranns0bfe5d82016-08-25 15:29:12 +0100232 negative_fwd_actions_e action;
Florin Corased09a052016-05-06 14:22:40 +0200233
Florin Corasff0bf132016-09-05 19:30:35 +0200234 /** local eid */
Florin Coras1a1adc72016-07-22 01:45:30 +0200235 gid_address_t lcl_eid;
Florin Corasff0bf132016-09-05 19:30:35 +0200236
237 /** remote eid */
Florin Coras1a1adc72016-07-22 01:45:30 +0200238 gid_address_t rmt_eid;
Florin Corased09a052016-05-06 14:22:40 +0200239
Florin Corasff0bf132016-09-05 19:30:35 +0200240 /** vector of locator pairs */
Florin Coras220beac2016-08-16 23:04:00 +0200241 locator_pair_t *locator_pairs;
Florin Corased09a052016-05-06 14:22:40 +0200242
Florin Corasff0bf132016-09-05 19:30:35 +0200243 /** FIB index to lookup remote locator at encap */
Florin Corase127a7e2016-02-18 22:20:01 +0100244 u32 encap_fib_index;
Florin Corasff0bf132016-09-05 19:30:35 +0200245
246 /** FIB index to lookup inner IP at decap */
Florin Corase127a7e2016-02-18 22:20:01 +0100247 u32 decap_fib_index;
Florin Corased09a052016-05-06 14:22:40 +0200248
Florin Corasff0bf132016-09-05 19:30:35 +0200249 /* TODO remove */
250 u32 decap_next_index;
Florin Corased09a052016-05-06 14:22:40 +0200251
Florin Corasff0bf132016-09-05 19:30:35 +0200252 /** VNI/tenant id in HOST byte order */
Florin Corased09a052016-05-06 14:22:40 +0200253 u32 vni;
254
Florin Corasff0bf132016-09-05 19:30:35 +0200255 /** vrf or bd where fwd entry should be inserted */
Florin Coras1a1adc72016-07-22 01:45:30 +0200256 union
257 {
Florin Corasff0bf132016-09-05 19:30:35 +0200258 /** table (vrf) id */
Florin Coras1a1adc72016-07-22 01:45:30 +0200259 u32 table_id;
Florin Corasff0bf132016-09-05 19:30:35 +0200260
261 /** bridge domain id */
Florin Corasc14f31c2017-04-06 15:27:35 -0700262 u32 bd_id;
Florin Coras429e7952016-08-02 02:31:03 +0200263
Florin Corasff0bf132016-09-05 19:30:35 +0200264 /** generic access */
Florin Coras429e7952016-08-02 02:31:03 +0200265 u32 dp_table;
Florin Coras1a1adc72016-07-22 01:45:30 +0200266 };
Florin Corase127a7e2016-02-18 22:20:01 +0100267} vnet_lisp_gpe_add_del_fwd_entry_args_t;
268
Filip Tehlar5fae99c2017-01-18 12:57:37 +0100269typedef struct
270{
271 u32 fwd_entry_index;
272 u32 dp_table;
273 u32 vni;
Filip Tehlar0eb874e2017-05-18 14:23:32 +0200274 u8 action;
Filip Tehlar5fae99c2017-01-18 12:57:37 +0100275 dp_address_t leid;
276 dp_address_t reid;
277} lisp_api_gpe_fwd_entry_t;
278
Florin Coras02655bd2016-04-26 00:17:24 +0200279#define foreach_lgpe_ip4_lookup_next \
280 _(DROP, "error-drop") \
281 _(LISP_CP_LOOKUP, "lisp-cp-lookup")
282
283typedef enum lgpe_ip4_lookup_next
284{
285#define _(sym,str) LGPE_IP4_LOOKUP_NEXT_##sym,
286 foreach_lgpe_ip4_lookup_next
287#undef _
Florin Coras220beac2016-08-16 23:04:00 +0200288 LGPE_IP4_LOOKUP_N_NEXT,
Florin Coras02655bd2016-04-26 00:17:24 +0200289} lgpe_ip4_lookup_next_t;
290
Florin Corasff0bf132016-09-05 19:30:35 +0200291#define foreach_lgpe_ip6_lookup_next \
Florin Coras02655bd2016-04-26 00:17:24 +0200292 _(DROP, "error-drop") \
293 _(LISP_CP_LOOKUP, "lisp-cp-lookup")
294
295typedef enum lgpe_ip6_lookup_next
296{
297#define _(sym,str) LGPE_IP6_LOOKUP_NEXT_##sym,
298 foreach_lgpe_ip6_lookup_next
299#undef _
Florin Coras220beac2016-08-16 23:04:00 +0200300 LGPE_IP6_LOOKUP_N_NEXT,
Florin Coras02655bd2016-04-26 00:17:24 +0200301} lgpe_ip6_lookup_next_t;
Ed Warnickecb9cada2015-12-08 15:45:58 -0700302
Florin Coras220beac2016-08-16 23:04:00 +0200303u8 *format_vnet_lisp_gpe_status (u8 * s, va_list * args);
Filip Tehlar46d4e362016-05-09 09:39:26 +0200304
Filip Tehlar5fae99c2017-01-18 12:57:37 +0100305lisp_api_gpe_fwd_entry_t *vnet_lisp_gpe_fwd_entries_get_by_vni (u32 vni);
Filip Tehlar3e7b56932017-02-21 18:28:34 +0100306gpe_encap_mode_t vnet_gpe_get_encap_mode (void);
307int vnet_gpe_set_encap_mode (gpe_encap_mode_t mode);
Filip Tehlar5fae99c2017-01-18 12:57:37 +0100308
Filip Tehlar4868ff62017-03-09 16:48:39 +0100309u8 vnet_lisp_stats_enable_disable_state (void);
310vnet_api_error_t vnet_lisp_stats_enable_disable (u8 enable);
311lisp_api_stats_t *vnet_lisp_get_stats (void);
Filip Tehlar21511912017-04-07 10:41:42 +0200312int vnet_lisp_flush_stats (void);
Filip Tehlar4868ff62017-03-09 16:48:39 +0100313
Ed Warnickecb9cada2015-12-08 15:45:58 -0700314#endif /* included_vnet_lisp_gpe_h */
Florin Coras220beac2016-08-16 23:04:00 +0200315
316/*
317 * fd.io coding-style-patch-verification: ON
318 *
319 * Local Variables:
320 * eval: (c-set-style "gnu")
321 * End:
322 */