2 *------------------------------------------------------------------
3 * sr_api.c - ipv6 segment routing api
5 * Copyright (c) 2016 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <vnet/vnet.h>
21 #include <vnet/srv6/sr.h>
22 #include <vlibmemory/api.h>
24 #include <vnet/interface.h>
25 #include <vnet/api_errno.h>
26 #include <vnet/feature/feature.h>
28 #include <vnet/vnet_msg_enum.h>
30 #define vl_typedefs /* define message structures */
31 #include <vnet/vnet_all_api_h.h>
34 #define vl_endianfun /* define message structures */
35 #include <vnet/vnet_all_api_h.h>
38 /* instantiate all the print functions we know about */
39 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
41 #include <vnet/vnet_all_api_h.h>
44 #include <vlibapi/api_helper_macros.h>
46 #define foreach_vpe_api_msg \
47 _(SR_LOCALSID_ADD_DEL, sr_localsid_add_del) \
48 _(SR_POLICY_ADD, sr_policy_add) \
49 _(SR_POLICY_MOD, sr_policy_mod) \
50 _(SR_POLICY_DEL, sr_policy_del) \
51 _(SR_STEERING_ADD_DEL, sr_steering_add_del) \
52 _(SR_SET_ENCAP_SOURCE, sr_set_encap_source) \
53 _(SR_SET_ENCAP_HOP_LIMIT, sr_set_encap_hop_limit) \
54 _(SR_LOCALSIDS_DUMP, sr_localsids_dump) \
55 _(SR_POLICIES_DUMP, sr_policies_dump) \
56 _(SR_STEERING_POL_DUMP, sr_steering_pol_dump)
58 static void vl_api_sr_localsid_add_del_t_handler
59 (vl_api_sr_localsid_add_del_t * mp)
61 vl_api_sr_localsid_add_del_reply_t *rmp;
64 * int sr_cli_localsid (char is_del, ip6_address_t *localsid_addr,
65 * char end_psp, u8 behavior, u32 sw_if_index, u32 vlan_index, u32 fib_table,
66 * ip46_address_t *nh_addr, void *ls_plugin_mem)
68 if (mp->behavior == SR_BEHAVIOR_X ||
69 mp->behavior == SR_BEHAVIOR_DX6 ||
70 mp->behavior == SR_BEHAVIOR_DX4 || mp->behavior == SR_BEHAVIOR_DX2)
71 VALIDATE_SW_IF_INDEX (mp);
73 ip46_address_t prefix;
75 clib_memset (&prefix, 0, sizeof (ip46_address_t));
76 if ((mp->nh_addr4[0] | mp->nh_addr4[1] | mp->
77 nh_addr4[2] | mp->nh_addr4[3]) != 0)
78 memcpy (&prefix.ip4, mp->nh_addr4, sizeof (prefix.ip4));
80 memcpy (&prefix.ip6, mp->nh_addr6, sizeof (prefix.ip6));
82 rv = sr_cli_localsid (mp->is_del,
83 (ip6_address_t *) & mp->localsid, 0,
86 ntohl (mp->sw_if_index),
87 ntohl (mp->vlan_index),
88 ntohl (mp->fib_table), &prefix, NULL);
90 BAD_SW_IF_INDEX_LABEL;
91 REPLY_MACRO (VL_API_SR_LOCALSID_ADD_DEL_REPLY);
95 vl_api_sr_policy_add_t_handler (vl_api_sr_policy_add_t * mp)
97 vl_api_sr_policy_add_reply_t *rmp;
98 ip6_address_t *segments = 0, *seg;
99 ip6_address_t *this_address = (ip6_address_t *) mp->sids.sids;
102 for (i = 0; i < mp->sids.num_sids; i++)
104 vec_add2 (segments, seg, 1);
105 clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
110 * sr_policy_add (ip6_address_t *bsid, ip6_address_t *segments,
111 * u32 weight, u8 behavior, u32 fib_table, u8 is_encap,
112 * u16 behavior, void *plugin_mem)
115 rv = sr_policy_add ((ip6_address_t *) & mp->bsid_addr,
117 ntohl (mp->sids.weight),
118 mp->type, ntohl (mp->fib_table), mp->is_encap, 0, NULL);
121 REPLY_MACRO (VL_API_SR_POLICY_ADD_REPLY);
125 vl_api_sr_policy_mod_t_handler (vl_api_sr_policy_mod_t * mp)
127 vl_api_sr_policy_mod_reply_t *rmp;
129 ip6_address_t *segments = 0, *seg;
130 ip6_address_t *this_address = (ip6_address_t *) mp->sids.sids;
133 for (i = 0; i < mp->sids.num_sids; i++)
135 vec_add2 (segments, seg, 1);
136 clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
143 * sr_policy_mod(ip6_address_t *bsid, u32 index, u32 fib_table,
144 * u8 operation, ip6_address_t *segments, u32 sl_index,
145 * u32 weight, u8 is_encap)
147 rv = sr_policy_mod ((ip6_address_t *) & mp->bsid_addr,
148 ntohl (mp->sr_policy_index),
149 ntohl (mp->fib_table),
151 segments, ntohl (mp->sl_index),
152 ntohl (mp->sids.weight));
155 REPLY_MACRO (VL_API_SR_POLICY_MOD_REPLY);
159 vl_api_sr_policy_del_t_handler (vl_api_sr_policy_del_t * mp)
161 vl_api_sr_policy_del_reply_t *rmp;
165 * sr_policy_del (ip6_address_t *bsid, u32 index)
167 rv = sr_policy_del ((ip6_address_t *) & mp->bsid_addr,
168 ntohl (mp->sr_policy_index));
170 REPLY_MACRO (VL_API_SR_POLICY_DEL_REPLY);
174 vl_api_sr_set_encap_source_t_handler (vl_api_sr_set_encap_source_t * mp)
176 vl_api_sr_set_encap_source_reply_t *rmp;
178 sr_set_source ((ip6_address_t *) & mp->encaps_source);
180 REPLY_MACRO (VL_API_SR_SET_ENCAP_SOURCE_REPLY);
184 vl_api_sr_set_encap_hop_limit_t_handler (vl_api_sr_set_encap_hop_limit_t * mp)
186 vl_api_sr_set_encap_hop_limit_reply_t *rmp;
189 if (mp->hop_limit == 0)
190 rv = VNET_API_ERROR_INVALID_VALUE;
192 sr_set_hop_limit (mp->hop_limit);
194 REPLY_MACRO (VL_API_SR_SET_ENCAP_HOP_LIMIT_REPLY);
197 static void vl_api_sr_steering_add_del_t_handler
198 (vl_api_sr_steering_add_del_t * mp)
200 vl_api_sr_steering_add_del_reply_t *rmp;
204 * sr_steering_policy(int is_del, ip6_address_t *bsid, u32 sr_policy_index,
205 * u32 table_id, ip46_address_t *prefix, u32 mask_width, u32 sw_if_index,
208 if (mp->traffic_type == SR_STEER_L2)
209 VALIDATE_SW_IF_INDEX (mp);
211 rv = sr_steering_policy (mp->is_del,
212 (ip6_address_t *) & mp->bsid_addr,
213 ntohl (mp->sr_policy_index),
214 ntohl (mp->table_id),
215 (ip46_address_t *) & mp->prefix_addr,
216 ntohl (mp->mask_width),
217 ntohl (mp->sw_if_index), mp->traffic_type);
219 BAD_SW_IF_INDEX_LABEL;
220 REPLY_MACRO (VL_API_SR_STEERING_ADD_DEL_REPLY);
223 static void send_sr_localsid_details
224 (ip6_sr_localsid_t * t, vl_api_registration_t * reg, u32 context)
226 vl_api_sr_localsids_details_t *rmp;
228 rmp = vl_msg_api_alloc (sizeof (*rmp));
229 clib_memset (rmp, 0, sizeof (*rmp));
230 rmp->_vl_msg_id = ntohs (VL_API_SR_LOCALSIDS_DETAILS);
231 clib_memcpy (rmp->addr.addr, &t->localsid, sizeof (ip6_address_t));
232 rmp->end_psp = t->end_psp;
233 rmp->behavior = htons (t->behavior);
234 rmp->fib_table = htonl (t->fib_table);
235 rmp->vlan_index = htonl (t->vlan_index);
236 if (ip46_address_is_ip4 (&t->next_hop))
237 clib_memcpy (rmp->xconnect_nh_addr4, &t->next_hop.ip4,
238 sizeof (ip4_address_t));
240 clib_memcpy (rmp->xconnect_nh_addr6, &t->next_hop.ip6,
241 sizeof (ip6_address_t));
242 rmp->xconnect_iface_or_vrf_table = htonl (t->sw_if_index);
243 rmp->context = context;
245 vl_api_send_msg (reg, (u8 *) rmp);
248 static void vl_api_sr_localsids_dump_t_handler
249 (vl_api_sr_localsids_dump_t * mp)
251 vl_api_registration_t *reg;
252 ip6_sr_main_t *sm = &sr_main;
253 ip6_sr_localsid_t *t;
255 reg = vl_api_client_index_to_registration (mp->client_index);
260 pool_foreach (t, sm->localsids,
262 send_sr_localsid_details(t, reg, mp->context);
267 static void send_sr_policies_details
268 (ip6_sr_policy_t * t, vl_api_registration_t * reg, u32 context)
270 vl_api_sr_policies_details_t *rmp;
271 ip6_sr_main_t *sm = &sr_main;
274 ip6_sr_sl_t *segment_list = 0;
275 vl_api_srv6_sid_list_t *write_sid_list;
277 rmp = vl_msg_api_alloc (sizeof (*rmp) +
278 vec_len (t->segments_lists) *
279 sizeof (vl_api_srv6_sid_list_t));
282 vec_len (t->segments_lists) *
283 sizeof (vl_api_srv6_sid_list_t)));
285 rmp->_vl_msg_id = ntohs (VL_API_SR_POLICIES_DETAILS);
286 clib_memcpy (rmp->bsid.addr, &t->bsid, sizeof (ip6_address_t));
287 rmp->is_encap = t->is_encap;
289 rmp->fib_table = htonl (t->fib_table);
290 rmp->num_sid_lists = vec_len (t->segments_lists);
292 /* Fill in all the segments lists */
293 vec_foreach (sl_index, t->segments_lists)
295 segment_list = pool_elt_at_index (sm->sid_lists, *sl_index);
296 write_sid_list = &rmp->sid_lists[sl_index - t->segments_lists];
297 write_sid_list->num_sids = vec_len (segment_list->segments);
298 write_sid_list->weight = htonl (segment_list->weight);
299 clib_memcpy (write_sid_list->sids, segment_list->segments,
300 vec_len (segment_list->segments) * sizeof (ip6_address_t));
303 rmp->context = context;
304 vl_api_send_msg (reg, (u8 *) rmp);
308 vl_api_sr_policies_dump_t_handler (vl_api_sr_policies_dump_t * mp)
310 vl_api_registration_t *reg;
311 ip6_sr_main_t *sm = &sr_main;
314 reg = vl_api_client_index_to_registration (mp->client_index);
319 pool_foreach (t, sm->sr_policies,
321 send_sr_policies_details(t, reg, mp->context);
326 static void send_sr_steering_pol_details
327 (ip6_sr_steering_policy_t * t, vl_api_registration_t * reg, u32 context)
329 vl_api_sr_steering_pol_details_t *rmp;
330 ip6_sr_main_t *sm = &sr_main;
332 rmp = vl_msg_api_alloc (sizeof (*rmp));
333 clib_memset (rmp, 0, sizeof (*rmp));
334 rmp->_vl_msg_id = ntohs (VL_API_SR_STEERING_POL_DETAILS);
336 //Get the SR policy BSID
338 p = pool_elt_at_index (sm->sr_policies, t->sr_policy);
339 clib_memcpy (rmp->bsid.addr, &p->bsid, sizeof (ip6_address_t));
342 rmp->traffic_type = t->classify.traffic_type;
343 rmp->fib_table = htonl (t->classify.l3.fib_table);
344 rmp->mask_width = htonl (t->classify.l3.mask_width);
345 if (ip46_address_is_ip4 (&t->classify.l3.prefix))
346 clib_memcpy (rmp->prefix_addr, &t->classify.l3.prefix.ip4,
347 sizeof (ip4_address_t));
349 clib_memcpy (rmp->prefix_addr, &t->classify.l3.prefix.ip6,
350 sizeof (ip6_address_t));
352 rmp->sw_if_index = htonl (t->classify.l2.sw_if_index);
354 rmp->context = context;
355 vl_api_send_msg (reg, (u8 *) rmp);
358 static void vl_api_sr_steering_pol_dump_t_handler
359 (vl_api_sr_policies_dump_t * mp)
361 vl_api_registration_t *reg;
362 ip6_sr_main_t *sm = &sr_main;
363 ip6_sr_steering_policy_t *t;
365 reg = vl_api_client_index_to_registration (mp->client_index);
370 pool_foreach (t, sm->steer_policies,
372 send_sr_steering_pol_details(t, reg, mp->context);
379 * Add vpe's API message handlers to the table.
380 * vlib has already mapped shared memory and
381 * added the client registration handlers.
382 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
384 #define vl_msg_name_crc_list
385 #include <vnet/vnet_all_api_h.h>
386 #undef vl_msg_name_crc_list
389 setup_message_id_table (api_main_t * am)
391 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
392 foreach_vl_msg_name_crc_sr;
396 static clib_error_t *
397 sr_api_hookup (vlib_main_t * vm)
399 api_main_t *am = vlibapi_get_main ();
402 vl_msg_api_set_handlers(VL_API_##N, #n, \
403 vl_api_##n##_t_handler, \
405 vl_api_##n##_t_endian, \
406 vl_api_##n##_t_print, \
407 sizeof(vl_api_##n##_t), 1);
412 * Set up the (msg_name, crc, message-id) table
414 setup_message_id_table (am);
419 VLIB_API_INIT_FUNCTION (sr_api_hookup);
422 * fd.io coding-style-patch-verification: ON
425 * eval: (c-set-style "gnu")