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authorPablo Camarillo <pcamaril@cisco.com>2017-07-13 09:41:32 +0200
committerDave Barach <openvpp@barachs.net>2017-12-18 13:41:36 +0000
commit42998828c9bfa419ff3d9c68fd50cd148e24d4e4 (patch)
tree76e18b5cf5992757d82a5e82f46b0067e9530b8a /src/vnet/srmpls/sr_mpls_policy.c
parentd2fec4a255e00a5e6f5285cd878edf1a26d4a659 (diff)
SR-MPLS: binary API and automated steering
Change-Id: Iacfbaaa91ea8bd92790dec9fce567063bdbc5d64 Signed-off-by: Pablo Camarillo <pcamaril@cisco.com>
Diffstat (limited to 'src/vnet/srmpls/sr_mpls_policy.c')
-rwxr-xr-xsrc/vnet/srmpls/sr_mpls_policy.c549
1 files changed, 430 insertions, 119 deletions
diff --git a/src/vnet/srmpls/sr_mpls_policy.c b/src/vnet/srmpls/sr_mpls_policy.c
index db4ad2a7f1b..d75f2d1e22f 100755
--- a/src/vnet/srmpls/sr_mpls_policy.c
+++ b/src/vnet/srmpls/sr_mpls_policy.c
@@ -1,18 +1,17 @@
/*
* 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:
+ * 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
+ * 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.
+ * 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.
*/
/**
@@ -26,17 +25,19 @@
* 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.h>
+#include <vnet/srmpls/sr_mpls.h>
#include <vnet/fib/mpls_fib.h>
#include <vnet/dpo/dpo.h>
#include <vnet/dpo/replicate_dpo.h>
#include <vnet/dpo/mpls_label_dpo.h>
#include <vnet/dpo/lookup_dpo.h>
+#include <vnet/ip/ip.h>
#include <vppinfra/error.h>
#include <vppinfra/elog.h>
@@ -92,15 +93,15 @@ create_sl (mpls_sr_policy_t * sr_policy, mpls_label_t * sl, u32 weight)
mpls_eos_bit_t eos;
FOR_EACH_MPLS_EOS_BIT (eos)
{
- /* *INDENT-OFF* */
- 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,
- };
- /* *INDENT-ON* */
+ /* *INDENT-OFF* */
+ 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,
+ };
+ /* *INDENT-ON* */
fib_table_entry_path_add2 (0,
&pfx,
@@ -116,11 +117,11 @@ create_sl (mpls_sr_policy_t * sr_policy, mpls_label_t * sl, u32 weight)
}
/******************************* 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 */
+/*
+ * 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
@@ -141,6 +142,9 @@ sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
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));
+
/* Search for existing keys (BSID) */
p = hash_get (sm->sr_policies_index_hash, bsid);
if (p)
@@ -148,12 +152,14 @@ sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
/* Add SR policy that already exists; complain */
return -12;
}
-
/* Add an SR policy object */
pool_get (sm->sr_policies, sr_policy);
memset (sr_policy, 0, sizeof (*sr_policy));
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);
@@ -173,7 +179,7 @@ sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
* @return 0 if correct, else error
*/
int
-sr_mpls_policy_del (mpls_label_t bsid, u32 index)
+sr_mpls_policy_del (mpls_label_t bsid)
{
mpls_sr_main_t *sm = &sr_mpls_main;
mpls_sr_policy_t *sr_policy = 0;
@@ -182,20 +188,14 @@ sr_mpls_policy_del (mpls_label_t bsid, u32 index)
u32 *sl_index;
uword *p;
- if (bsid)
- {
- 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 (!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
- {
- sr_policy = pool_elt_at_index (sm->sr_policies, index);
- if (!sr_policy)
- return -1;
- }
+ return -1;
/* Clean SID Lists */
vec_foreach (sl_index, sr_policy->segments_lists)
@@ -211,21 +211,24 @@ sr_mpls_policy_del (mpls_label_t bsid, u32 index)
.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)
{
- /* *INDENT-OFF* */
- 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,
- };
- /* *INDENT-ON* */
+ /* *INDENT-OFF* */
+ 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,
+ };
+ /* *INDENT-ON* */
fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
}
@@ -234,6 +237,12 @@ sr_mpls_policy_del (mpls_label_t bsid, u32 index)
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);
@@ -249,17 +258,16 @@ sr_mpls_policy_del (mpls_label_t bsid, u32 index)
* Segment List from the SR Policy.
*
* @param bsid is the bindingSID of the SR Policy
- * @param index is the index 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 if correct, else error
+ * @return 0 ok, >0 index of SL, <0 error
*/
int
-sr_mpls_policy_mod (mpls_label_t bsid, u32 index, u8 operation,
+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;
@@ -268,34 +276,32 @@ sr_mpls_policy_mod (mpls_label_t bsid, u32 index, u8 operation,
u32 *sl_index_iterate;
uword *p;
- if (bsid)
- {
- 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 (!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
- {
- sr_policy = pool_elt_at_index (sm->sr_policies, index);
- if (!sr_policy)
- return -1;
- }
+ return -1;
- if (operation == 1) /* Add SR List to an existing SR policy */
- {
+ 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 */
- {
+ 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 */
+ /*
+ * 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;
@@ -316,20 +322,23 @@ sr_mpls_policy_mod (mpls_label_t bsid, u32 index, u8 operation,
.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)
{
- /* *INDENT-OFF* */
- 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,
- };
- /* *INDENT-ON* */
+ /* *INDENT-OFF* */
+ 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,
+ };
+ /* *INDENT-ON* */
fib_table_entry_path_remove2 (0, &pfx, FIB_SOURCE_SR, paths);
}
@@ -340,8 +349,9 @@ sr_mpls_policy_mod (mpls_label_t bsid, u32 index, u8 operation,
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 */
- {
+ 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)
@@ -352,10 +362,67 @@ sr_mpls_policy_mod (mpls_label_t bsid, u32 index, u8 operation,
/* Change the weight */
segment_list = pool_elt_at_index (sm->sid_lists, sl_index);
- segment_list->weight = weight;
/* Update LB */
- //FIXME
+ 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)
+ {
+ /* *INDENT-OFF* */
+ 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,
+ };
+ /* *INDENT-ON* */
+
+ 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)
+ {
+ /* *INDENT-OFF* */
+ 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,
+ };
+ /* *INDENT-ON* */
+
+ 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;
}
@@ -371,7 +438,7 @@ sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
char is_del = 0, is_add = 0, is_mod = 0;
char policy_set = 0;
mpls_label_t bsid, next_label;
- u32 sr_policy_index = (u32) ~ 0, sl_index = (u32) ~ 0;
+ u32 sl_index = (u32) ~ 0;
u32 weight = (u32) ~ 0;
mpls_label_t *segments = 0;
u8 operation = 0;
@@ -389,13 +456,9 @@ sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
&& unformat (input, "bsid %U", unformat_mpls_unicast_label,
&bsid))
policy_set = 1;
- else if (!is_add && !policy_set
- && unformat (input, "index %d", &sr_policy_index))
- policy_set = 1;
else if (unformat (input, "weight %d", &weight));
- else
- if (unformat
- (input, "next %U", unformat_mpls_unicast_label, &next_label))
+ else if (unformat
+ (input, "next %U", unformat_mpls_unicast_label, &next_label))
{
vec_add (segments, &next_label, 1);
}
@@ -427,9 +490,7 @@ sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
SR_POLICY_TYPE_DEFAULT), weight);
}
else if (is_del)
- rv =
- sr_mpls_policy_del ((sr_policy_index != (u32) ~ 0 ? (u32) ~ 0 : bsid),
- sr_policy_index);
+ rv = sr_mpls_policy_del (bsid);
else if (is_mod)
{
if (!operation)
@@ -440,12 +501,8 @@ sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
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 ((sr_policy_index != (u32) ~ 0 ? (u32) ~ 0 : bsid),
- sr_policy_index, operation, segments,
- sl_index, weight);
+ rv = sr_mpls_policy_mod (bsid, operation, segments, sl_index, weight);
}
-
switch (rv)
{
case 0:
@@ -464,6 +521,10 @@ sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
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. "
@@ -475,12 +536,13 @@ sr_mpls_policy_command_fn (vlib_main_t * vm, unformat_input_t * input,
}
/* *INDENT-OFF* */
-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,
+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,
};
/* *INDENT-ON* */
@@ -502,9 +564,11 @@ show_sr_mpls_policies_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_output (vm, "SR MPLS policies:");
- /* *INDENT-OFF* */
- pool_foreach (sr_policy, sm->sr_policies, {vec_add1 (vec_policies, sr_policy); } );
- /* *INDENT-ON* */
+ /* *INDENT-OFF* */
+ pool_foreach(sr_policy, sm->sr_policies, {
+ vec_add1(vec_policies, sr_policy);
+ });
+ /* *INDENT-ON* */
vec_foreach_index (i, vec_policies)
{
@@ -512,6 +576,21 @@ show_sr_mpls_policies_command_fn (vlib_main_t * vm, unformat_input_t * input,
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"));
@@ -536,10 +615,244 @@ show_sr_mpls_policies_command_fn (vlib_main_t * vm, unformat_input_t * input,
}
/* *INDENT-OFF* */
-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,
+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,
+};
+/* *INDENT-ON* */
+
+/**
+ * @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);
+
+ 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);
+
+ vec_add1 (path.frp_label_stack, MPLS_IETF_IMPLICIT_NULL_LABEL);
+ 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;
+
+ 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;
+}
+
+/* *INDENT-OFF* */
+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,
};
/* *INDENT-ON* */
@@ -553,17 +866,15 @@ 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 = hash_create (0, sizeof (mpls_label_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:
-*/
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables: eval: (c-set-style "gnu") End:
+ */