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-rw-r--r--src/vnet/srmpls/sr_mpls_policy.c903
1 files changed, 0 insertions, 903 deletions
diff --git a/src/vnet/srmpls/sr_mpls_policy.c b/src/vnet/srmpls/sr_mpls_policy.c
deleted file mode 100644
index 41cb71601e9..00000000000
--- a/src/vnet/srmpls/sr_mpls_policy.c
+++ /dev/null
@@ -1,903 +0,0 @@
-/*
- * sr_mpls_policy.c: SR-MPLS policies
- *
- * Copyright (c) 2016 Cisco and/or its affiliates. Licensed under the Apache
- * License, Version 2.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-
-/**
- * @file
- * @brief SR MPLS policy creation and application
- *
- * Create an SR policy.
- * An SR policy can be either of 'default' type or 'spray' type
- * An SR policy has attached a list of SID lists.
- * In case the SR policy is a default one it will load balance among them.
- * An SR policy has associated a BindingSID.
- * In case any packet arrives with MPLS_label == BindingSID then the SR policy
- * associated to such bindingSID will be applied to such packet.
- * Also, a BSID can be associated with a (Next-Hop, Color)
- *
- */
-
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
-#include <vnet/srmpls/sr_mpls.h>
-#include <vnet/fib/mpls_fib.h>
-#include <vnet/dpo/dpo.h>
-#include <vnet/ip/ip.h>
-
-#include <vppinfra/error.h>
-#include <vppinfra/elog.h>
-
-mpls_sr_main_t sr_mpls_main;
-
-/*************************** SR LB helper functions **************************/
-/**
- * @brief Creates a Segment List and adds it to an SR policy
- *
- * Creates a Segment List and adds it to the SR policy. Notice that the SL are
- * not necessarily unique. Hence there might be two Segment List within the
- * same SR Policy with exactly the same segments and same weight.
- *
- * @param sr_policy is the SR policy where the SL will be added
- * @param sl is a vector of IPv6 addresses composing the Segment List
- * @param weight is the weight of the SegmentList (for load-balancing purposes)
- * @param is_encap represents the mode (SRH insertion vs Encapsulation)
- *
- * @return pointer to the just created segment list
- */
-static inline mpls_sr_sl_t *
-create_sl (mpls_sr_policy_t * sr_policy, mpls_label_t * sl, u32 weight)
-{
- mpls_sr_main_t *sm = &sr_mpls_main;
- mpls_sr_sl_t *segment_list;
- u32 ii;
-
- pool_get (sm->sid_lists, segment_list);
- clib_memset (segment_list, 0, sizeof (*segment_list));
-
- vec_add1 (sr_policy->segments_lists, segment_list - sm->sid_lists);
-
- /* Fill in segment list */
- segment_list->weight =
- (weight != (u32) ~ 0 ? weight : SR_SEGMENT_LIST_WEIGHT_DEFAULT);
- segment_list->segments = vec_dup (sl);
-
- mpls_eos_bit_t eos;
- FOR_EACH_MPLS_EOS_BIT (eos)
- {
- fib_route_path_t path = {
- .frp_proto = DPO_PROTO_MPLS,
- .frp_sw_if_index = ~0,
- .frp_fib_index = 0,
- .frp_weight = segment_list->weight,
- .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
- .frp_label_stack = NULL,
- .frp_local_label = sl[0],
- };
-
- if (vec_len (sl) > 1)
- {
- vec_validate (path.frp_label_stack, vec_len (sl) - 2);
- for (ii = 1; ii < vec_len (sl); ii++)
- {
- path.frp_label_stack[ii - 1].fml_value = sl[ii];
- }
- }
- else
- {
- /*
- * add an impliciet NULL label to allow non-eos recursion
- */
- fib_mpls_label_t lbl = {
- .fml_value = MPLS_IETF_IMPLICIT_NULL_LABEL,
- };
- vec_add1 (path.frp_label_stack, lbl);
- }
-
- fib_route_path_t *paths = NULL;
- vec_add1 (paths, path);
-
- fib_prefix_t pfx = {
- .fp_len = 21,
- .fp_proto = FIB_PROTOCOL_MPLS,
- .fp_label = sr_policy->bsid,
- .fp_eos = eos,
- .fp_payload_proto = DPO_PROTO_MPLS,
- };
-
- fib_table_entry_path_add2 (0,
- &pfx,
- FIB_SOURCE_SR,
- (sr_policy->type == SR_POLICY_TYPE_DEFAULT ?
- FIB_ENTRY_FLAG_NONE :
- FIB_ENTRY_FLAG_MULTICAST), paths);
- vec_free (paths);
- }
-
- return segment_list;
-}
-
-/******************************* SR rewrite API *******************************/
-/*
- * Three functions for handling sr policies: -> sr_mpls_policy_add ->
- * sr_mpls_policy_del -> sr_mpls_policy_mod All of them are API. CLI function
- * on sr_policy_command_fn
- */
-
-/**
- * @brief Create a new SR policy
- *
- * @param bsid is the bindingSID of the SR Policy
- * @param segments is a vector of MPLS labels composing the segment list
- * @param behavior is the behavior of the SR policy. (default//spray)
- * @param fib_table is the VRF where to install the FIB entry for the BSID
- * @param weight is the weight of this specific SID list
- *
- * @return 0 if correct, else error
- */
-int
-sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
- u8 behavior, u32 weight)
-{
- mpls_sr_main_t *sm = &sr_mpls_main;
- mpls_sr_policy_t *sr_policy = 0;
- uword *p;
-
- if (!sm->sr_policies_index_hash)
- sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
-
- /* MPLS SR policies cannot be created unless the MPLS table is present */
- if (~0 == fib_table_find (FIB_PROTOCOL_MPLS, MPLS_FIB_DEFAULT_TABLE_ID))
- return (VNET_API_ERROR_NO_SUCH_TABLE);
-
- /* Search for existing keys (BSID) */
- p = hash_get (sm->sr_policies_index_hash, bsid);
- if (p)
- {
- /* Add SR policy that already exists; complain */
- return -12;
- }
- /* Add an SR policy object */
- pool_get (sm->sr_policies, sr_policy);
- clib_memset (sr_policy, 0, sizeof (*sr_policy));
-
- /* the first policy needs to lock the MPLS table so it doesn't
- * disappear with policies in it */
- if (1 == pool_elts (sm->sr_policies))
- fib_table_find_or_create_and_lock (FIB_PROTOCOL_MPLS,
- MPLS_FIB_DEFAULT_TABLE_ID,
- FIB_SOURCE_SR);
- sr_policy->bsid = bsid;
- sr_policy->type = behavior;
- sr_policy->endpoint_type = 0;
- ip6_address_set_zero (&sr_policy->endpoint.ip6);
- sr_policy->color = (u32) ~ 0;
-
- /* Copy the key */
- hash_set (sm->sr_policies_index_hash, bsid, sr_policy - sm->sr_policies);
-
- /* Create a segment list and add the index to the SR policy */
- create_sl (sr_policy, segments, weight);
-
- return 0;
-}
-
-/**
- * @brief Delete a SR policy
- *
- * @param bsid is the bindingSID of the SR Policy
- * @param index is the index of the SR policy
- *
- * @return 0 if correct, else error
- */
-int
-sr_mpls_policy_del (mpls_label_t bsid)
-{
- mpls_sr_main_t *sm = &sr_mpls_main;
- mpls_sr_policy_t *sr_policy = 0;
- mpls_sr_sl_t *segment_list;
- mpls_eos_bit_t eos;
- u32 *sl_index;
- uword *p;
-
- if (!sm->sr_policies_index_hash)
- sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
-
- p = hash_get (sm->sr_policies_index_hash, bsid);
- if (p)
- sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
- else
- return -1;
-
- /* Clean SID Lists */
- vec_foreach (sl_index, sr_policy->segments_lists)
- {
- segment_list = pool_elt_at_index (sm->sid_lists, *sl_index);
-
- fib_route_path_t path = {
- .frp_proto = DPO_PROTO_MPLS,
- .frp_sw_if_index = ~0,
- .frp_fib_index = 0,
- .frp_weight = segment_list->weight,
- .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
- .frp_local_label = segment_list->segments[0],
- };
-
- vec_add (path.frp_label_stack, segment_list + 1,
- vec_len (segment_list) - 1);
-
- fib_route_path_t *paths = NULL;
- vec_add1 (paths, path);
-
- /* remove each of the MPLS routes */
- FOR_EACH_MPLS_EOS_BIT (eos)
- {
- fib_prefix_t pfx = {
- .fp_len = 21,
- .fp_proto = FIB_PROTOCOL_MPLS,
- .fp_label = sr_policy->bsid,
- .fp_eos = eos,
- .fp_payload_proto = DPO_PROTO_MPLS,
- };
-
- fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
- }
- vec_free (paths);
- vec_free (segment_list->segments);
- pool_put_index (sm->sid_lists, *sl_index);
- }
-
- /* If there is still traces of TE, make sure locks are released */
- if (sr_policy->endpoint_type != 0 && sr_policy->color != (u32) ~ 0)
- {
- sr_mpls_policy_assign_endpoint_color (bsid, NULL, 0, (u32) ~ 0);
- }
-
- /* Remove SR policy entry */
- hash_unset (sm->sr_policies_index_hash, sr_policy->bsid);
- pool_put (sm->sr_policies, sr_policy);
-
- if (0 == pool_elts (sm->sr_policies))
- fib_table_unlock (MPLS_FIB_DEFAULT_TABLE_ID,
- FIB_PROTOCOL_MPLS, FIB_SOURCE_SR);
-
- return 0;
-}
-
-/**
- * @brief Modify an existing SR policy
- *
- * The possible modifications are adding a new Segment List, modifying an
- * existing Segment List (modify the weight only) and delete a given
- * Segment List from the SR Policy.
- *
- * @param bsid is the bindingSID of the SR Policy
- * @param fib_table is the VRF where to install the FIB entry for the BSID
- * @param operation is the operation to perform (among the top ones)
- * @param segments is a vector of IPv6 address composing the segment list
- * @param sl_index is the index of the Segment List to modify/delete
- * @param weight is the weight of the sid list. optional.
- *
- * @return 0 ok, >0 index of SL, <0 error
- */
-int
-sr_mpls_policy_mod (mpls_label_t bsid, u8 operation,
- mpls_label_t * segments, u32 sl_index, u32 weight)
-{
- mpls_sr_main_t *sm = &sr_mpls_main;
- mpls_sr_policy_t *sr_policy = 0;
- mpls_sr_sl_t *segment_list;
- u32 *sl_index_iterate;
- uword *p;
-
- if (!sm->sr_policies_index_hash)
- sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
-
- p = hash_get (sm->sr_policies_index_hash, bsid);
- if (p)
- sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
- else
- return -1;
-
- if (operation == 1)
- { /* Add SR List to an existing SR policy */
- /* Create the new SL */
- segment_list = create_sl (sr_policy, segments, weight);
- return segment_list - sm->sid_lists;
- }
- else if (operation == 2)
- { /* Delete SR List from an existing SR
- * policy */
- /* Check that currently there are more than one SID list */
- if (vec_len (sr_policy->segments_lists) == 1)
- return -21;
-
- /*
- * Check that the SR list does exist and is assigned to the
- * sr policy
- */
- vec_foreach (sl_index_iterate, sr_policy->segments_lists)
- if (*sl_index_iterate == sl_index)
- break;
-
- if (*sl_index_iterate != sl_index)
- return -22;
-
- /* Remove the lucky SR list that is being kicked out */
- segment_list = pool_elt_at_index (sm->sid_lists, sl_index);
-
- mpls_eos_bit_t eos;
- fib_route_path_t path = {
- .frp_proto = DPO_PROTO_MPLS,
- .frp_sw_if_index = ~0,
- .frp_fib_index = 0,
- .frp_weight = segment_list->weight,
- .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
- .frp_local_label = segment_list->segments[0],
- };
-
- vec_add (path.frp_label_stack, segment_list + 1,
- vec_len (segment_list) - 1);
-
- fib_route_path_t *paths = NULL;
- vec_add1 (paths, path);
-
- FOR_EACH_MPLS_EOS_BIT (eos)
- {
- fib_prefix_t pfx = {
- .fp_len = 21,
- .fp_proto = FIB_PROTOCOL_MPLS,
- .fp_label = sr_policy->bsid,
- .fp_eos = eos,
- .fp_payload_proto = DPO_PROTO_MPLS,
- };
-
- fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
- }
-
- vec_free (paths);
- vec_free (segment_list->segments);
- pool_put_index (sm->sid_lists, sl_index);
- vec_del1 (sr_policy->segments_lists,
- sl_index_iterate - sr_policy->segments_lists);
- }
- else if (operation == 3)
- { /* Modify the weight of an existing
- * SR List */
- /* Find the corresponding SL */
- vec_foreach (sl_index_iterate, sr_policy->segments_lists)
- if (*sl_index_iterate == sl_index)
- break;
-
- if (*sl_index_iterate != sl_index)
- return -32;
-
- /* Change the weight */
- segment_list = pool_elt_at_index (sm->sid_lists, sl_index);
-
- /* Update LB */
- mpls_eos_bit_t eos;
- fib_route_path_t path = {
- .frp_proto = DPO_PROTO_MPLS,
- .frp_sw_if_index = ~0,
- .frp_fib_index = 0,
- .frp_weight = segment_list->weight,
- .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
- .frp_local_label = segment_list->segments[0],
- };
-
- vec_add (path.frp_label_stack, segment_list + 1,
- vec_len (segment_list) - 1);
-
- fib_route_path_t *paths = NULL;
- vec_add1 (paths, path);
-
- FOR_EACH_MPLS_EOS_BIT (eos)
- {
- fib_prefix_t pfx = {
- .fp_len = 21,
- .fp_proto = FIB_PROTOCOL_MPLS,
- .fp_label = sr_policy->bsid,
- .fp_eos = eos,
- .fp_payload_proto = DPO_PROTO_MPLS,
- };
-
- fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
- }
-
- segment_list->weight = weight;
-
- path.frp_weight = segment_list->weight;
-
- vec_free (paths);
- paths = NULL;
- vec_add1 (paths, path);
-
- FOR_EACH_MPLS_EOS_BIT (eos)
- {
- fib_prefix_t pfx = {
- .fp_len = 21,
- .fp_proto = FIB_PROTOCOL_MPLS,
- .fp_label = sr_policy->bsid,
- .fp_eos = eos,
- .fp_payload_proto = DPO_PROTO_MPLS,
- };
-
- fib_table_entry_path_add2 (0,
- &pfx,
- FIB_SOURCE_SR,
- (sr_policy->type ==
- SR_POLICY_TYPE_DEFAULT ?
- FIB_ENTRY_FLAG_NONE :
- FIB_ENTRY_FLAG_MULTICAST), paths);
- }
- }
- return 0;
-}
-
-/**
- * @brief CLI for 'sr mpls policies' command family
- */
-static clib_error_t *
-sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- int rv = -1;
- char is_del = 0, is_add = 0, is_mod = 0;
- char policy_set = 0;
- mpls_label_t bsid, next_label;
- u32 sl_index = (u32) ~ 0;
- u32 weight = (u32) ~ 0;
- mpls_label_t *segments = 0;
- u8 operation = 0;
- u8 is_spray = 0;
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (!is_add && !is_mod && !is_del && unformat (input, "add"))
- is_add = 1;
- else if (!is_add && !is_mod && !is_del && unformat (input, "del"))
- is_del = 1;
- else if (!is_add && !is_mod && !is_del && unformat (input, "mod"))
- is_mod = 1;
- else if (!policy_set
- && unformat (input, "bsid %U", unformat_mpls_unicast_label,
- &bsid))
- policy_set = 1;
- else if (unformat (input, "weight %d", &weight));
- else if (unformat
- (input, "next %U", unformat_mpls_unicast_label, &next_label))
- {
- vec_add (segments, &next_label, 1);
- }
- else if (unformat (input, "add sl"))
- operation = 1;
- else if (unformat (input, "del sl index %d", &sl_index))
- operation = 2;
- else if (unformat (input, "mod sl index %d", &sl_index))
- operation = 3;
- else if (unformat (input, "spray"))
- is_spray = 1;
- else
- break;
- }
-
- if (!is_add && !is_mod && !is_del)
- return clib_error_return (0, "Incorrect CLI");
-
- if (!policy_set)
- return clib_error_return (0, "No SR policy BSID or index specified");
-
- if (is_add)
- {
- if (vec_len (segments) == 0)
- return clib_error_return (0, "No Segment List specified");
-
- rv = sr_mpls_policy_add (bsid, segments,
- (is_spray ? SR_POLICY_TYPE_SPRAY :
- SR_POLICY_TYPE_DEFAULT), weight);
- vec_free (segments);
- }
- else if (is_del)
- rv = sr_mpls_policy_del (bsid);
- else if (is_mod)
- {
- if (!operation)
- return clib_error_return (0, "No SL modification specified");
- if (operation != 1 && sl_index == (u32) ~ 0)
- return clib_error_return (0, "No Segment List index specified");
- if (operation == 1 && vec_len (segments) == 0)
- return clib_error_return (0, "No Segment List specified");
- if (operation == 3 && weight == (u32) ~ 0)
- return clib_error_return (0, "No new weight for the SL specified");
- rv = sr_mpls_policy_mod (bsid, operation, segments, sl_index, weight);
- vec_free (segments);
- }
- switch (rv)
- {
- case 0:
- break;
- case 1:
- return 0;
- case -12:
- return clib_error_return (0,
- "There is already a FIB entry for the BindingSID address.\n"
- "The SR policy could not be created.");
- case -21:
- return clib_error_return (0,
- "The selected SR policy only contains ONE segment list. "
- "Please remove the SR policy instead");
- case -22:
- return clib_error_return (0,
- "Could not delete the segment list. "
- "It is not associated with that SR policy.");
- case -23:
- return clib_error_return (0,
- "Could not delete the segment list. "
- "It is not associated with that SR policy.");
- case -32:
- return clib_error_return (0,
- "Could not modify the segment list. "
- "The given SL is not associated with such SR policy.");
- case VNET_API_ERROR_NO_SUCH_TABLE:
- return clib_error_return (0, "the Default MPLS table is not present");
- default:
- return clib_error_return (0, "BUG: sr policy returns %d", rv);
- }
- return 0;
-}
-
-VLIB_CLI_COMMAND(sr_mpls_policy_command, static)=
-{
- .path = "sr mpls policy",
- .short_help = "sr mpls policy [add||del||mod] bsid 2999 "
- "next 10 next 20 next 30 (weight 1) (spray)",
- .long_help = "TBD.\n",
- .function = sr_mpls_policy_command_fn,
-};
-
-/**
- * @brief CLI to display onscreen all the SR MPLS policies
- */
-static clib_error_t *
-show_sr_mpls_policies_command_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- mpls_sr_main_t *sm = &sr_mpls_main;
- mpls_sr_sl_t *segment_list = 0;
- mpls_sr_policy_t *sr_policy = 0;
- mpls_sr_policy_t **vec_policies = 0;
- mpls_label_t *label;
- u32 *sl_index;
- u8 *s;
- int i = 0;
-
- vlib_cli_output (vm, "SR MPLS policies:");
-
- pool_foreach (sr_policy, sm->sr_policies) {
- vec_add1(vec_policies, sr_policy);
- }
-
- vec_foreach_index (i, vec_policies)
- {
- sr_policy = vec_policies[i];
- vlib_cli_output (vm, "[%u].-\tBSID: %U",
- (u32) (sr_policy - sm->sr_policies),
- format_mpls_unicast_label, sr_policy->bsid);
- switch (sr_policy->endpoint_type)
- {
- case SR_STEER_IPV6:
- vlib_cli_output (vm, "\tEndpoint: %U", format_ip6_address,
- &sr_policy->endpoint.ip6);
- vlib_cli_output (vm, "\tColor: %u", sr_policy->color);
- break;
- case SR_STEER_IPV4:
- vlib_cli_output (vm, "\tEndpoint: %U", format_ip4_address,
- &sr_policy->endpoint.ip4);
- vlib_cli_output (vm, "\tColor: %u", sr_policy->color);
- break;
- default:
- vlib_cli_output (vm, "\tTE disabled");
- }
- vlib_cli_output (vm, "\tType: %s",
- (sr_policy->type ==
- SR_POLICY_TYPE_DEFAULT ? "Default" : "Spray"));
- vlib_cli_output (vm, "\tSegment Lists:");
- vec_foreach (sl_index, sr_policy->segments_lists)
- {
- s = NULL;
- segment_list = pool_elt_at_index (sm->sid_lists, *sl_index);
- s = format (s, "\t[%u].- ", *sl_index);
- s = format (s, "< ");
- vec_foreach (label, segment_list->segments)
- {
- s = format (s, "%U, ", format_mpls_unicast_label, *label);
- }
- s = format (s, "\b\b > ");
- vlib_cli_output (vm, " %s", s);
- }
- vlib_cli_output (vm, "-----------");
- }
- vec_free (vec_policies);
- return 0;
-}
-
-VLIB_CLI_COMMAND(show_sr_mpls_policies_command, static)=
-{
- .path = "show sr mpls policies",
- .short_help = "show sr mpls policies",
- .function = show_sr_mpls_policies_command_fn,
-};
-
-/**
- * @brief Update the Endpoint,Color tuple of an SR policy
- *
- * @param bsid is the bindingSID of the SR Policy
- * @param endpoint represents the IP46 of the endpoint
- * @param color represents the color (u32)
- *
- * To reset to NULL use ~0 as parameters.
- *
- * @return 0 if correct, else error
- */
-int
-sr_mpls_policy_assign_endpoint_color (mpls_label_t bsid,
- ip46_address_t * endpoint,
- u8 endpoint_type, u32 color)
-{
- mpls_sr_main_t *sm = &sr_mpls_main;
- mpls_sr_policy_t *sr_policy = 0;
- uword *endpoint_table, *p, *old_value;
-
- ip46_address_t any;
- any.as_u64[0] = any.as_u64[1] = (u64) ~ 0;
-
- if (!sm->sr_policies_index_hash)
- sm->sr_policies_index_hash = hash_create (0, sizeof (mpls_label_t));
-
- p = hash_get (sm->sr_policies_index_hash, bsid);
- if (p)
- sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
- else
- return -1;
-
- /* If previous Endpoint, color existed, remove (NH,C) and (ANY,C) */
- if (sr_policy->endpoint_type)
- {
- endpoint_table =
- mhash_get (&sm->sr_policies_c2e2eclabel_hash, &sr_policy->color);
- if (!endpoint_table)
- return -2;
- old_value =
- mhash_get ((mhash_t *) endpoint_table, &sr_policy->endpoint);
-
- /* CID 180995 This should never be NULL unless the two hash tables
- * get out of sync */
- ALWAYS_ASSERT (old_value != NULL);
-
- fib_prefix_t pfx = { 0 };
- pfx.fp_proto = FIB_PROTOCOL_MPLS;
- pfx.fp_len = 21;
- pfx.fp_label = (u32) * old_value;
-
- mpls_eos_bit_t eos;
- FOR_EACH_MPLS_EOS_BIT (eos)
- {
- pfx.fp_eos = eos;
- fib_table_entry_path_remove (sm->fib_table_EC,
- &pfx,
- FIB_SOURCE_SR,
- DPO_PROTO_MPLS,
- NULL,
- ~0, 0, 1, FIB_ROUTE_PATH_FLAG_NONE);
- }
-
- old_value = mhash_get ((mhash_t *) endpoint_table, &any);
- pfx.fp_label = (u32) * old_value;
-
- FOR_EACH_MPLS_EOS_BIT (eos)
- {
- pfx.fp_eos = eos;
- fib_table_entry_path_remove (sm->fib_table_EC,
- &pfx,
- FIB_SOURCE_SR,
- DPO_PROTO_MPLS,
- NULL,
- ~0, 0, 1, FIB_ROUTE_PATH_FLAG_NONE);
- }
-
- /* Release the lock on (NH, Color) and (ANY, Color) */
- internal_label_unlock (sr_policy->endpoint, sr_policy->color);
- internal_label_unlock (any, sr_policy->color);
-
- /* Reset the values on the SR policy */
- sr_policy->endpoint_type = 0;
- sr_policy->endpoint.as_u64[0] = sr_policy->endpoint.as_u64[1] =
- (u64) ~ 0;
- sr_policy->color = (u32) ~ 0;
- }
-
- if (endpoint_type)
- {
- sr_policy->endpoint_type = endpoint_type;
- sr_policy->endpoint.as_u64[0] = endpoint->as_u64[0];
- sr_policy->endpoint.as_u64[1] = endpoint->as_u64[1];
- sr_policy->color = color;
-
- u32 label = find_or_create_internal_label (*endpoint, color);
- internal_label_lock (*endpoint, sr_policy->color);
-
- /* If FIB doesnt exist, create them */
- if (sm->fib_table_EC == (u32) ~ 0)
- {
- sm->fib_table_EC = fib_table_create_and_lock (FIB_PROTOCOL_MPLS,
- FIB_SOURCE_SR,
- "SR-MPLS Traffic Engineering (NextHop,Color)");
-
- fib_table_flush (sm->fib_table_EC, FIB_PROTOCOL_MPLS,
- FIB_SOURCE_SPECIAL);
- }
-
- fib_prefix_t pfx = { 0 };
- pfx.fp_proto = FIB_PROTOCOL_MPLS;
- pfx.fp_len = 21;
-
- fib_route_path_t path = {
- .frp_proto = DPO_PROTO_MPLS,
- .frp_sw_if_index = ~0,
- .frp_fib_index = 0,
- .frp_weight = 1,
- .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
- .frp_label_stack = 0
- };
- path.frp_local_label = sr_policy->bsid;
-
- //Add the entry to ANY,Color
- u32 any_label = find_or_create_internal_label (any, color);
- internal_label_lock (any, sr_policy->color);
-
- pfx.fp_eos = MPLS_EOS;
- path.frp_eos = MPLS_EOS;
-
- fib_route_path_t *paths = NULL;
- vec_add1 (paths, path);
-
- pfx.fp_label = label;
- fib_table_entry_update (sm->fib_table_EC,
- &pfx,
- FIB_SOURCE_SR,
- FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
-
- pfx.fp_label = any_label;
- fib_table_entry_update (sm->fib_table_EC,
- &pfx,
- FIB_SOURCE_SR,
- FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
-
- fib_mpls_label_t fml = {
- .fml_value = MPLS_IETF_IMPLICIT_NULL_LABEL,
- };
-
- vec_add1 (path.frp_label_stack, fml);
- pfx.fp_eos = MPLS_NON_EOS;
- path.frp_eos = MPLS_NON_EOS;
-
- paths = NULL;
- vec_add1 (paths, path);
-
- pfx.fp_label = label;
- fib_table_entry_update (sm->fib_table_EC,
- &pfx,
- FIB_SOURCE_SR,
- FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
-
- pfx.fp_label = any_label;
- fib_table_entry_update (sm->fib_table_EC,
- &pfx,
- FIB_SOURCE_SR,
- FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT, paths);
- }
- return 0;
-}
-
-/**
- * @brief CLI to modify the Endpoint,Color of an SR policy
- */
-static clib_error_t *
-cli_sr_mpls_policy_ec_command_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- ip46_address_t endpoint;
- u32 color = (u32) ~ 0;
- mpls_label_t bsid;
- u8 endpoint_type = 0;
- char clear = 0, color_set = 0, bsid_set = 0;
-
- clib_memset (&endpoint, 0, sizeof (ip46_address_t));
-
- int rv;
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (!endpoint_type
- && unformat (input, "endpoint %U", unformat_ip6_address,
- &endpoint.ip6))
- endpoint_type = SR_STEER_IPV6;
- else if (!endpoint_type
- && unformat (input, "endpoint %U", unformat_ip4_address,
- &endpoint.ip4))
- endpoint_type = SR_STEER_IPV4;
- else if (!color_set && unformat (input, "color %u", &color))
- color_set = 1;
- else if (!bsid_set
- && unformat (input, "bsid %U", unformat_mpls_unicast_label,
- &bsid))
- bsid_set = 1;
- else if (!clear && unformat (input, "clear"))
- clear = 1;
- else
- break;
- }
-
- if (!bsid_set)
- return clib_error_return (0, "No BSID specified");
- if (!endpoint_type && !clear)
- return clib_error_return (0, "No Endpoint specified");
- if (!color_set && !clear)
- return clib_error_return (0, "No Color set");
-
- /* In case its a cleanup */
- if (clear)
- {
- ip6_address_set_zero (&endpoint.ip6);
- color = (u32) ~ 0;
- }
- rv =
- sr_mpls_policy_assign_endpoint_color (bsid, &endpoint, endpoint_type,
- color);
-
- if (rv)
- clib_error_return (0, "Error on Endpoint,Color");
-
- return 0;
-}
-
-VLIB_CLI_COMMAND(cli_sr_mpls_policy_ec_command, static)=
-{
- .path = "sr mpls policy te",
- .short_help = "sr mpls policy te bsid xxxxx endpoint x.x.x.x color 12341234",
- .function = cli_sr_mpls_policy_ec_command_fn,
-};
-
-/********************* SR MPLS Policy initialization ***********************/
-/**
- * @brief SR MPLS Policy initialization
- */
-clib_error_t *
-sr_mpls_policy_rewrite_init (vlib_main_t * vm)
-{
- mpls_sr_main_t *sm = &sr_mpls_main;
-
- /* Init memory for sr policy keys (bsid <-> ip6_address_t) */
- sm->sr_policies_index_hash = NULL;
- sm->sr_policies_c2e2eclabel_hash.hash = NULL;
- return 0;
-}
-
-VLIB_INIT_FUNCTION (sr_mpls_policy_rewrite_init);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables: eval: (c-set-style "gnu") End:
- */