--- /dev/null
+/*
+ * Copyright (c) 2015 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 Segment Routing MPLS data structures definitions
+ *
+ */
+
+#ifndef included_vnet_srmpls_h
+#define included_vnet_srmpls_h
+
+#include <vnet/vnet.h>
+#include <vnet/mpls/packet.h>
+#include <vnet/fib/mpls_fib.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ip/lookup.h>
+#include <vnet/dpo/dpo.h>
+#include <vnet/dpo/replicate_dpo.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+/* SR policy types */
+#define SR_POLICY_TYPE_DEFAULT 0
+#define SR_POLICY_TYPE_SPRAY 1
+
+#define SR_SEGMENT_LIST_WEIGHT_DEFAULT 1
+
+#define SR_STEER_IPV4 4
+#define SR_STEER_IPV6 6
+
+#define SR_TE_CO_BITS_00 0
+#define SR_TE_CO_BITS_01 1
+#define SR_TE_CO_BITS_10 2
+#define SR_TE_CO_BITS_11 3
+
+/**
+ * @brief SR Segment List (SID list)
+ */
+typedef struct
+{
+ /* SIDs (key) */
+ mpls_label_t *segments;
+
+ /* SID list weight (wECMP / UCMP) */
+ u32 weight;
+
+} mpls_sr_sl_t;
+
+typedef struct
+{
+ u32 *segments_lists; /**< Pool of SID lists indexes */
+
+ mpls_label_t bsid; /**< BindingSID (key) */
+
+ u8 type; /**< Type (default is 0) */
+ /* SR Policy specific DPO */
+ /* IF Type = DEFAULT Then Load-Balancer DPO among SID lists */
+ /* IF Type = SPRAY then Spray DPO with all SID lists */
+
+ ip46_address_t endpoint; /**< Optional NH for SR TE */
+ u8 endpoint_type;
+ u32 color; /**< Optional color for SR TE */
+} mpls_sr_policy_t;
+
+/**
+ * @brief Steering db key
+ *
+ * L3 is IPv4/IPv6 + mask
+ */
+typedef struct
+{
+ ip46_address_t prefix; /**< IP address of the prefix */
+ u32 mask_width; /**< Mask width of the prefix */
+ u32 fib_table; /**< VRF of the prefix */
+ u8 traffic_type; /**< Traffic type (IPv4, IPv6, L2) */
+ u8 padding[3];
+} sr_mpls_steering_key_t;
+
+typedef struct
+{
+ sr_mpls_steering_key_t classify; /**< Traffic classification */
+ mpls_label_t bsid; /**< SR Policy index */
+ ip46_address_t next_hop; /**< SR TE NH */
+ char nh_type;
+ u32 *color; /**< Vector of SR TE colors */
+ char co_bits; /**< Color-Only bits */
+ mpls_label_t vpn_label;
+} mpls_sr_steering_policy_t;
+
+/**
+ * @brief Segment Routing main datastructure
+ */
+typedef struct
+{
+ /* SR SID lists */
+ mpls_sr_sl_t *sid_lists;
+
+ /* SR MPLS policies */
+ mpls_sr_policy_t *sr_policies;
+
+ /* Hash table mapping BindingSID to SR MPLS policy */
+ uword *sr_policies_index_hash;
+
+ /* Pool of SR steer policies instances */
+ mpls_sr_steering_policy_t *steer_policies;
+
+ /* MHash table mapping steering rules to SR steer instance */
+ mhash_t sr_steer_policies_hash;
+
+ /** SR TE **/
+ /* Hash table mapping (Color->Endpoint->BSID) for SR policies */
+ mhash_t sr_policies_c2e2eclabel_hash;
+ /* SR TE (internal) fib table (Endpoint, Color) */
+ u32 fib_table_EC;
+ /* Pool of (Endpoint, Color) hidden labels */
+ u32 *ec_labels;
+
+ /* convenience */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+} mpls_sr_main_t;
+
+extern mpls_sr_main_t sr_mpls_main;
+
+extern int
+sr_mpls_policy_add (mpls_label_t bsid, mpls_label_t * segments,
+ u8 behavior, u32 weight);
+
+extern int
+sr_mpls_policy_mod (mpls_label_t bsid, u8 operation,
+ mpls_label_t * segments, u32 sl_index, u32 weight);
+
+extern int sr_mpls_policy_del (mpls_label_t bsid);
+
+extern int
+sr_mpls_policy_assign_endpoint_color (mpls_label_t bsid,
+ ip46_address_t * endpoint,
+ u8 endpoint_type, u32 color);
+
+extern int
+sr_mpls_steering_policy_add (mpls_label_t bsid, u32 table_id,
+ ip46_address_t * prefix, u32 mask_width,
+ u8 traffic_type, ip46_address_t * next_hop,
+ u8 nh_type, u32 color, char co_bits,
+ mpls_label_t vpn_label);
+
+extern int
+sr_mpls_steering_policy_del (ip46_address_t * prefix,
+ u32 mask_width, u8 traffic_type, u32 table_id,
+ u32 color);
+
+extern u32 find_or_create_internal_label (ip46_address_t endpoint, u32 color);
+
+extern void internal_label_lock (ip46_address_t endpoint, u32 color);
+
+extern void internal_label_unlock (ip46_address_t endpoint, u32 color);
+
+#endif /* included_vnet_sr_mpls_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables: eval: (c-set-style "gnu") End:
+ */
Code Review / vpp.git / blobdiff