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authorPablo Camarillo <pcamaril@cisco.com>2017-04-24 17:51:56 +0200
committerNeale Ranns <nranns@cisco.com>2017-05-05 11:38:39 +0000
commit5d73eecd63018db69b10bf56adeec9cc5cf92790 (patch)
tree5fc242e79737b2a95a75d44bfbde3d4d91db4c9f /src/vnet/srmpls/sr.h
parenta774b53623f60b5e8ea8ed634d6a41e847743715 (diff)
First commit SR MPLS
Change-Id: I961685a2a0e4c314049444c64eb6ccf877c278dd Signed-off-by: Pablo Camarillo <pcamaril@cisco.com>
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+/*
+ * 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
+
+/**
+ * @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 */
+
+} 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 */
+ u32 sr_policy; /**< SR Policy index */
+} 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;
+
+ /**
+ * 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, u32 index, u8 operation,
+ mpls_label_t * segments, u32 sl_index, u32 weight);
+
+extern int sr_mpls_policy_del (mpls_label_t bsid, u32 index);
+
+#endif /* included_vnet_sr_mpls_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */