2 * sr_mpls_policy.c: SR-MPLS policies
4 * Copyright (c) 2016 Cisco and/or its affiliates. Licensed under the Apache
5 * License, Version 2.0 (the "License"); you may not use this file except in
6 * compliance with the License. You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
19 * @brief SR MPLS policy creation and application
21 * Create an SR policy.
22 * An SR policy can be either of 'default' type or 'spray' type
23 * An SR policy has attached a list of SID lists.
24 * In case the SR policy is a default one it will load balance among them.
25 * An SR policy has associated a BindingSID.
26 * In case any packet arrives with MPLS_label == BindingSID then the SR policy
27 * associated to such bindingSID will be applied to such packet.
28 * Also, a BSID can be associated with a (Next-Hop, Color)
32 #include <vlib/vlib.h>
33 #include <vnet/vnet.h>
34 #include <vnet/srmpls/sr_mpls.h>
35 #include <vnet/fib/mpls_fib.h>
36 #include <vnet/dpo/dpo.h>
37 #include <vnet/ip/ip.h>
39 #include <vppinfra/error.h>
40 #include <vppinfra/elog.h>
42 mpls_sr_main_t sr_mpls_main;
44 /*************************** SR LB helper functions **************************/
46 * @brief Creates a Segment List and adds it to an SR policy
48 * Creates a Segment List and adds it to the SR policy. Notice that the SL are
49 * not necessarily unique. Hence there might be two Segment List within the
50 * same SR Policy with exactly the same segments and same weight.
52 * @param sr_policy is the SR policy where the SL will be added
53 * @param sl is a vector of IPv6 addresses composing the Segment List
54 * @param weight is the weight of the SegmentList (for load-balancing purposes)
55 * @param is_encap represents the mode (SRH insertion vs Encapsulation)
57 * @return pointer to the just created segment list
59 static inline mpls_sr_sl_t *
60 create_sl (mpls_sr_policy_t * sr_policy, mpls_label_t * sl, u32 weight)
62 mpls_sr_main_t *sm = &sr_mpls_main;
63 mpls_sr_sl_t *segment_list;
66 pool_get (sm->sid_lists, segment_list);
67 memset (segment_list, 0, sizeof (*segment_list));
69 vec_add1 (sr_policy->segments_lists, segment_list - sm->sid_lists);
71 /* Fill in segment list */
72 segment_list->weight =
73 (weight != (u32) ~ 0 ? weight : SR_SEGMENT_LIST_WEIGHT_DEFAULT);
74 segment_list->segments = vec_dup (sl);
77 FOR_EACH_MPLS_EOS_BIT (eos)
79 fib_route_path_t path = {
80 .frp_proto = DPO_PROTO_MPLS,
81 .frp_sw_if_index = ~0,
83 .frp_weight = segment_list->weight,
84 .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
85 .frp_label_stack = NULL,
86 .frp_local_label = sl[0],
91 vec_validate (path.frp_label_stack, vec_len (sl) - 2);
92 for (ii = 1; ii < vec_len (sl); ii++)
94 path.frp_label_stack[ii - 1].fml_value = sl[ii];
100 * add an impliciet NULL label to allow non-eos recursion
102 fib_mpls_label_t lbl = {
103 .fml_value = MPLS_IETF_IMPLICIT_NULL_LABEL,
105 vec_add1 (path.frp_label_stack, lbl);
108 fib_route_path_t *paths = NULL;
109 vec_add1 (paths, path);
114 .fp_proto = FIB_PROTOCOL_MPLS,
115 .fp_label = sr_policy->bsid,
117 .fp_payload_proto = DPO_PROTO_MPLS,
121 fib_table_entry_path_add2 (0,
124 (sr_policy->type == SR_POLICY_TYPE_DEFAULT ?
125 FIB_ENTRY_FLAG_NONE :
126 FIB_ENTRY_FLAG_MULTICAST), paths);
133 /******************************* SR rewrite API *******************************/
135 * Three functions for handling sr policies: -> sr_mpls_policy_add ->
136 * sr_mpls_policy_del -> sr_mpls_policy_mod All of them are API. CLI function
137 * on sr_policy_command_fn
141 * @brief Create a new SR policy
143 * @param bsid is the bindingSID of the SR Policy
144 * @param segments is a vector of MPLS labels composing the segment list
145 * @param behavior is the behavior of the SR policy. (default//spray)
146 * @param fib_table is the VRF where to install the FIB entry for the BSID
147 * @param weight is the weight of this specific SID list
149 * @return 0 if correct, else error
152 sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
153 u8 behavior, u32 weight)
155 mpls_sr_main_t *sm = &sr_mpls_main;
156 mpls_sr_policy_t *sr_policy = 0;
159 if (!sm->sr_policies_index_hash)
160 sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
162 /* MPLS SR policies cannot be created unless the MPLS table is present */
163 if (~0 == fib_table_find (FIB_PROTOCOL_MPLS, MPLS_FIB_DEFAULT_TABLE_ID))
164 return (VNET_API_ERROR_NO_SUCH_TABLE);
166 /* Search for existing keys (BSID) */
167 p = hash_get (sm->sr_policies_index_hash, bsid);
170 /* Add SR policy that already exists; complain */
173 /* Add an SR policy object */
174 pool_get (sm->sr_policies, sr_policy);
175 memset (sr_policy, 0, sizeof (*sr_policy));
177 /* the first policy needs to lock the MPLS table so it doesn't
178 * disappear with policies in it */
179 if (1 == pool_elts (sm->sr_policies))
180 fib_table_find_or_create_and_lock (FIB_PROTOCOL_MPLS,
181 MPLS_FIB_DEFAULT_TABLE_ID,
183 sr_policy->bsid = bsid;
184 sr_policy->type = behavior;
185 sr_policy->endpoint_type = 0;
186 ip6_address_set_zero (&sr_policy->endpoint.ip6);
187 sr_policy->color = (u32) ~ 0;
190 hash_set (sm->sr_policies_index_hash, bsid, sr_policy - sm->sr_policies);
192 /* Create a segment list and add the index to the SR policy */
193 create_sl (sr_policy, segments, weight);
199 * @brief Delete a SR policy
201 * @param bsid is the bindingSID of the SR Policy
202 * @param index is the index of the SR policy
204 * @return 0 if correct, else error
207 sr_mpls_policy_del (mpls_label_t bsid)
209 mpls_sr_main_t *sm = &sr_mpls_main;
210 mpls_sr_policy_t *sr_policy = 0;
211 mpls_sr_sl_t *segment_list;
216 if (!sm->sr_policies_index_hash)
217 sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
219 p = hash_get (sm->sr_policies_index_hash, bsid);
221 sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
225 /* Clean SID Lists */
226 vec_foreach (sl_index, sr_policy->segments_lists)
228 segment_list = pool_elt_at_index (sm->sid_lists, *sl_index);
230 fib_route_path_t path = {
231 .frp_proto = DPO_PROTO_MPLS,
232 .frp_sw_if_index = ~0,
234 .frp_weight = segment_list->weight,
235 .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
236 .frp_local_label = segment_list->segments[0],
239 vec_add (path.frp_label_stack, segment_list + 1,
240 vec_len (segment_list) - 1);
242 fib_route_path_t *paths = NULL;
243 vec_add1 (paths, path);
245 /* remove each of the MPLS routes */
246 FOR_EACH_MPLS_EOS_BIT (eos)
251 .fp_proto = FIB_PROTOCOL_MPLS,
252 .fp_label = sr_policy->bsid,
254 .fp_payload_proto = DPO_PROTO_MPLS,
258 fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
261 vec_free (segment_list->segments);
262 pool_put_index (sm->sid_lists, *sl_index);
265 /* If there is still traces of TE, make sure locks are released */
266 if (sr_policy->endpoint_type != 0 && sr_policy->color != (u32) ~ 0)
268 sr_mpls_policy_assign_endpoint_color (bsid, NULL, 0, (u32) ~ 0);
271 /* Remove SR policy entry */
272 hash_unset (sm->sr_policies_index_hash, sr_policy->bsid);
273 pool_put (sm->sr_policies, sr_policy);
275 if (0 == pool_elts (sm->sr_policies))
276 fib_table_unlock (MPLS_FIB_DEFAULT_TABLE_ID,
277 FIB_PROTOCOL_MPLS, FIB_SOURCE_SR);
283 * @brief Modify an existing SR policy
285 * The possible modifications are adding a new Segment List, modifying an
286 * existing Segment List (modify the weight only) and delete a given
287 * Segment List from the SR Policy.
289 * @param bsid is the bindingSID of the SR Policy
290 * @param fib_table is the VRF where to install the FIB entry for the BSID
291 * @param operation is the operation to perform (among the top ones)
292 * @param segments is a vector of IPv6 address composing the segment list
293 * @param sl_index is the index of the Segment List to modify/delete
294 * @param weight is the weight of the sid list. optional.
296 * @return 0 ok, >0 index of SL, <0 error
299 sr_mpls_policy_mod (mpls_label_t bsid, u8 operation,
300 mpls_label_t * segments, u32 sl_index, u32 weight)
302 mpls_sr_main_t *sm = &sr_mpls_main;
303 mpls_sr_policy_t *sr_policy = 0;
304 mpls_sr_sl_t *segment_list;
305 u32 *sl_index_iterate;
308 if (!sm->sr_policies_index_hash)
309 sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
311 p = hash_get (sm->sr_policies_index_hash, bsid);
313 sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
318 { /* Add SR List to an existing SR policy */
319 /* Create the new SL */
320 segment_list = create_sl (sr_policy, segments, weight);
321 return segment_list - sm->sid_lists;
323 else if (operation == 2)
324 { /* Delete SR List from an existing SR
326 /* Check that currently there are more than one SID list */
327 if (vec_len (sr_policy->segments_lists) == 1)
331 * Check that the SR list does exist and is assigned to the
334 vec_foreach (sl_index_iterate, sr_policy->segments_lists)
335 if (*sl_index_iterate == sl_index)
338 if (*sl_index_iterate != sl_index)
341 /* Remove the lucky SR list that is being kicked out */
342 segment_list = pool_elt_at_index (sm->sid_lists, sl_index);
345 fib_route_path_t path = {
346 .frp_proto = DPO_PROTO_MPLS,
347 .frp_sw_if_index = ~0,
349 .frp_weight = segment_list->weight,
350 .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
351 .frp_local_label = segment_list->segments[0],
354 vec_add (path.frp_label_stack, segment_list + 1,
355 vec_len (segment_list) - 1);
357 fib_route_path_t *paths = NULL;
358 vec_add1 (paths, path);
360 FOR_EACH_MPLS_EOS_BIT (eos)
365 .fp_proto = FIB_PROTOCOL_MPLS,
366 .fp_label = sr_policy->bsid,
368 .fp_payload_proto = DPO_PROTO_MPLS,
372 fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
376 vec_free (segment_list->segments);
377 pool_put_index (sm->sid_lists, sl_index);
378 vec_del1 (sr_policy->segments_lists,
379 sl_index_iterate - sr_policy->segments_lists);
381 else if (operation == 3)
382 { /* Modify the weight of an existing
384 /* Find the corresponding SL */
385 vec_foreach (sl_index_iterate, sr_policy->segments_lists)
386 if (*sl_index_iterate == sl_index)
389 if (*sl_index_iterate != sl_index)
392 /* Change the weight */
393 segment_list = pool_elt_at_index (sm->sid_lists, sl_index);
397 fib_route_path_t path = {
398 .frp_proto = DPO_PROTO_MPLS,
399 .frp_sw_if_index = ~0,
401 .frp_weight = segment_list->weight,
402 .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
403 .frp_local_label = segment_list->segments[0],
406 vec_add (path.frp_label_stack, segment_list + 1,
407 vec_len (segment_list) - 1);
409 fib_route_path_t *paths = NULL;
410 vec_add1 (paths, path);
412 FOR_EACH_MPLS_EOS_BIT (eos)
417 .fp_proto = FIB_PROTOCOL_MPLS,
418 .fp_label = sr_policy->bsid,
420 .fp_payload_proto = DPO_PROTO_MPLS,
424 fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
427 segment_list->weight = weight;
429 path.frp_weight = segment_list->weight;
433 vec_add1 (paths, path);
435 FOR_EACH_MPLS_EOS_BIT (eos)
440 .fp_proto = FIB_PROTOCOL_MPLS,
441 .fp_label = sr_policy->bsid,
443 .fp_payload_proto = DPO_PROTO_MPLS,
447 fib_table_entry_path_add2 (0,
451 SR_POLICY_TYPE_DEFAULT ?
452 FIB_ENTRY_FLAG_NONE :
453 FIB_ENTRY_FLAG_MULTICAST), paths);
460 * @brief CLI for 'sr mpls policies' command family
462 static clib_error_t *
463 sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
464 vlib_cli_command_t * cmd)
467 char is_del = 0, is_add = 0, is_mod = 0;
469 mpls_label_t bsid, next_label;
470 u32 sl_index = (u32) ~ 0;
471 u32 weight = (u32) ~ 0;
472 mpls_label_t *segments = 0;
476 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
478 if (!is_add && !is_mod && !is_del && unformat (input, "add"))
480 else if (!is_add && !is_mod && !is_del && unformat (input, "del"))
482 else if (!is_add && !is_mod && !is_del && unformat (input, "mod"))
485 && unformat (input, "bsid %U", unformat_mpls_unicast_label,
488 else if (unformat (input, "weight %d", &weight));
490 (input, "next %U", unformat_mpls_unicast_label, &next_label))
492 vec_add (segments, &next_label, 1);
494 else if (unformat (input, "add sl"))
496 else if (unformat (input, "del sl index %d", &sl_index))
498 else if (unformat (input, "mod sl index %d", &sl_index))
500 else if (unformat (input, "spray"))
506 if (!is_add && !is_mod && !is_del)
507 return clib_error_return (0, "Incorrect CLI");
510 return clib_error_return (0, "No SR policy BSID or index specified");
514 if (vec_len (segments) == 0)
515 return clib_error_return (0, "No Segment List specified");
517 rv = sr_mpls_policy_add (bsid, segments,
518 (is_spray ? SR_POLICY_TYPE_SPRAY :
519 SR_POLICY_TYPE_DEFAULT), weight);
523 rv = sr_mpls_policy_del (bsid);
527 return clib_error_return (0, "No SL modification specified");
528 if (operation != 1 && sl_index == (u32) ~ 0)
529 return clib_error_return (0, "No Segment List index specified");
530 if (operation == 1 && vec_len (segments) == 0)
531 return clib_error_return (0, "No Segment List specified");
532 if (operation == 3 && weight == (u32) ~ 0)
533 return clib_error_return (0, "No new weight for the SL specified");
534 rv = sr_mpls_policy_mod (bsid, operation, segments, sl_index, weight);
544 return clib_error_return (0,
545 "There is already a FIB entry for the BindingSID address.\n"
546 "The SR policy could not be created.");
548 return clib_error_return (0,
549 "The selected SR policy only contains ONE segment list. "
550 "Please remove the SR policy instead");
552 return clib_error_return (0,
553 "Could not delete the segment list. "
554 "It is not associated with that SR policy.");
556 return clib_error_return (0,
557 "Could not delete the segment list. "
558 "It is not associated with that SR policy.");
560 return clib_error_return (0,
561 "Could not modify the segment list. "
562 "The given SL is not associated with such SR policy.");
563 case VNET_API_ERROR_NO_SUCH_TABLE:
564 return clib_error_return (0, "the Default MPLS table is not present");
566 return clib_error_return (0, "BUG: sr policy returns %d", rv);
572 VLIB_CLI_COMMAND(sr_mpls_policy_command, static)=
574 .path = "sr mpls policy",
575 .short_help = "sr mpls policy [add||del||mod] bsid 2999 "
576 "next 10 next 20 next 30 (weight 1) (spray)",
577 .long_help = "TBD.\n",
578 .function = sr_mpls_policy_command_fn,
583 * @brief CLI to display onscreen all the SR MPLS policies
585 static clib_error_t *
586 show_sr_mpls_policies_command_fn (vlib_main_t * vm, unformat_input_t * input,
587 vlib_cli_command_t * cmd)
589 mpls_sr_main_t *sm = &sr_mpls_main;
590 mpls_sr_sl_t *segment_list = 0;
591 mpls_sr_policy_t *sr_policy = 0;
592 mpls_sr_policy_t **vec_policies = 0;
598 vlib_cli_output (vm, "SR MPLS policies:");
601 pool_foreach(sr_policy, sm->sr_policies, {
602 vec_add1(vec_policies, sr_policy);
606 vec_foreach_index (i, vec_policies)
608 sr_policy = vec_policies[i];
609 vlib_cli_output (vm, "[%u].-\tBSID: %U",
610 (u32) (sr_policy - sm->sr_policies),
611 format_mpls_unicast_label, sr_policy->bsid);
612 switch (sr_policy->endpoint_type)
615 vlib_cli_output (vm, "\tEndpoint: %U", format_ip6_address,
616 &sr_policy->endpoint.ip6);
617 vlib_cli_output (vm, "\tColor: %u", sr_policy->color);
620 vlib_cli_output (vm, "\tEndpoint: %U", format_ip4_address,
621 &sr_policy->endpoint.ip4);
622 vlib_cli_output (vm, "\tColor: %u", sr_policy->color);
625 vlib_cli_output (vm, "\tTE disabled");
627 vlib_cli_output (vm, "\tType: %s",
629 SR_POLICY_TYPE_DEFAULT ? "Default" : "Spray"));
630 vlib_cli_output (vm, "\tSegment Lists:");
631 vec_foreach (sl_index, sr_policy->segments_lists)
634 segment_list = pool_elt_at_index (sm->sid_lists, *sl_index);
635 s = format (s, "\t[%u].- ", *sl_index);
636 s = format (s, "< ");
637 vec_foreach (label, segment_list->segments)
639 s = format (s, "%U, ", format_mpls_unicast_label, *label);
641 s = format (s, "\b\b > ");
642 vlib_cli_output (vm, " %s", s);
644 vlib_cli_output (vm, "-----------");
646 vec_free (vec_policies);
651 VLIB_CLI_COMMAND(show_sr_mpls_policies_command, static)=
653 .path = "show sr mpls policies",
654 .short_help = "show sr mpls policies",
655 .function = show_sr_mpls_policies_command_fn,
660 * @brief Update the Endpoint,Color tuple of an SR policy
662 * @param bsid is the bindingSID of the SR Policy
663 * @param endpoint represents the IP46 of the endpoint
664 * @param color represents the color (u32)
666 * To reset to NULL use ~0 as parameters.
668 * @return 0 if correct, else error
671 sr_mpls_policy_assign_endpoint_color (mpls_label_t bsid,
672 ip46_address_t * endpoint,
673 u8 endpoint_type, u32 color)
675 mpls_sr_main_t *sm = &sr_mpls_main;
676 mpls_sr_policy_t *sr_policy = 0;
677 uword *endpoint_table, *p, *old_value;
680 any.as_u64[0] = any.as_u64[1] = (u64) ~ 0;
682 if (!sm->sr_policies_index_hash)
683 sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
685 p = hash_get (sm->sr_policies_index_hash, bsid);
687 sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
691 /* If previous Endpoint, color existed, remove (NH,C) and (ANY,C) */
692 if (sr_policy->endpoint_type)
695 mhash_get (&sm->sr_policies_c2e2eclabel_hash, &sr_policy->color);
699 mhash_get ((mhash_t *) endpoint_table, &sr_policy->endpoint);
701 /* CID 180995 This should never be NULL unless the two hash tables
703 ASSERT (old_value != NULL);
705 fib_prefix_t pfx = { 0 };
706 pfx.fp_proto = FIB_PROTOCOL_MPLS;
708 pfx.fp_label = (u32) * old_value;
711 FOR_EACH_MPLS_EOS_BIT (eos)
714 fib_table_entry_path_remove (sm->fib_table_EC,
719 ~0, 0, 1, FIB_ROUTE_PATH_FLAG_NONE);
722 old_value = mhash_get ((mhash_t *) endpoint_table, &any);
723 pfx.fp_label = (u32) * old_value;
725 FOR_EACH_MPLS_EOS_BIT (eos)
728 fib_table_entry_path_remove (sm->fib_table_EC,
733 ~0, 0, 1, FIB_ROUTE_PATH_FLAG_NONE);
736 /* Release the lock on (NH, Color) and (ANY, Color) */
737 internal_label_unlock (sr_policy->endpoint, sr_policy->color);
738 internal_label_unlock (any, sr_policy->color);
740 /* Reset the values on the SR policy */
741 sr_policy->endpoint_type = 0;
742 sr_policy->endpoint.as_u64[0] = sr_policy->endpoint.as_u64[1] =
744 sr_policy->color = (u32) ~ 0;
749 sr_policy->endpoint_type = endpoint_type;
750 sr_policy->endpoint.as_u64[0] = endpoint->as_u64[0];
751 sr_policy->endpoint.as_u64[1] = endpoint->as_u64[1];
752 sr_policy->color = color;
754 u32 label = find_or_create_internal_label (*endpoint, color);
755 internal_label_lock (*endpoint, sr_policy->color);
757 /* If FIB doesnt exist, create them */
758 if (sm->fib_table_EC == (u32) ~ 0)
760 sm->fib_table_EC = fib_table_create_and_lock (FIB_PROTOCOL_MPLS,
762 "SR-MPLS Traffic Engineering (NextHop,Color)");
764 fib_table_flush (sm->fib_table_EC, FIB_PROTOCOL_MPLS,
768 fib_prefix_t pfx = { 0 };
769 pfx.fp_proto = FIB_PROTOCOL_MPLS;
772 fib_route_path_t path = {
773 .frp_proto = DPO_PROTO_MPLS,
774 .frp_sw_if_index = ~0,
777 .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
780 path.frp_local_label = sr_policy->bsid;
782 //Add the entry to ANY,Color
783 u32 any_label = find_or_create_internal_label (any, color);
784 internal_label_lock (any, sr_policy->color);
786 pfx.fp_eos = MPLS_EOS;
787 path.frp_eos = MPLS_EOS;
789 fib_route_path_t *paths = NULL;
790 vec_add1 (paths, path);
792 pfx.fp_label = label;
793 fib_table_entry_update (sm->fib_table_EC,
796 FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
798 pfx.fp_label = any_label;
799 fib_table_entry_update (sm->fib_table_EC,
802 FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
804 fib_mpls_label_t fml = {
805 .fml_value = MPLS_IETF_IMPLICIT_NULL_LABEL,
808 vec_add1 (path.frp_label_stack, fml);
809 pfx.fp_eos = MPLS_NON_EOS;
810 path.frp_eos = MPLS_NON_EOS;
813 vec_add1 (paths, path);
815 pfx.fp_label = label;
816 fib_table_entry_update (sm->fib_table_EC,
819 FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
821 pfx.fp_label = any_label;
822 fib_table_entry_update (sm->fib_table_EC,
825 FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
831 * @brief CLI to modify the Endpoint,Color of an SR policy
833 static clib_error_t *
834 cli_sr_mpls_policy_ec_command_fn (vlib_main_t * vm, unformat_input_t * input,
835 vlib_cli_command_t * cmd)
837 ip46_address_t endpoint;
838 u32 color = (u32) ~ 0;
840 u8 endpoint_type = 0;
841 char clear = 0, color_set = 0, bsid_set = 0;
843 memset (&endpoint, 0, sizeof (ip46_address_t));
846 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
849 && unformat (input, "endpoint %U", unformat_ip6_address,
851 endpoint_type = SR_STEER_IPV6;
852 else if (!endpoint_type
853 && unformat (input, "endpoint %U", unformat_ip4_address,
855 endpoint_type = SR_STEER_IPV4;
856 else if (!color_set && unformat (input, "color %u", &color))
859 && unformat (input, "bsid %U", unformat_mpls_unicast_label,
862 else if (!clear && unformat (input, "clear"))
869 return clib_error_return (0, "No BSID specified");
870 if (!endpoint_type && !clear)
871 return clib_error_return (0, "No Endpoint specified");
872 if (!color_set && !clear)
873 return clib_error_return (0, "No Color set");
875 /* In case its a cleanup */
878 ip6_address_set_zero (&endpoint.ip6);
882 sr_mpls_policy_assign_endpoint_color (bsid, &endpoint, endpoint_type,
886 clib_error_return (0, "Error on Endpoint,Color");
892 VLIB_CLI_COMMAND(cli_sr_mpls_policy_ec_command, static)=
894 .path = "sr mpls policy te",
895 .short_help = "sr mpls policy te bsid xxxxx endpoint x.x.x.x color 12341234",
896 .function = cli_sr_mpls_policy_ec_command_fn,
900 /********************* SR MPLS Policy initialization ***********************/
902 * @brief SR MPLS Policy initialization
905 sr_mpls_policy_rewrite_init (vlib_main_t * vm)
907 mpls_sr_main_t *sm = &sr_mpls_main;
909 /* Init memory for sr policy keys (bsid <-> ip6_address_t) */
910 sm->sr_policies_index_hash = NULL;
911 sm->sr_policies_c2e2eclabel_hash.hash = NULL;
915 VLIB_INIT_FUNCTION (sr_mpls_policy_rewrite_init);
918 * fd.io coding-style-patch-verification: ON
920 * Local Variables: eval: (c-set-style "gnu") End: