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/*
* Copyright (c) 2018 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.
*/
#ifndef __GBP_POLICY_DPO_H__
#define __GBP_POLICY_DPO_H__
#include <vnet/dpo/dpo.h>
#include <vnet/dpo/load_balance.h>
#include <vnet/fib/ip4_fib.h>
#include <vnet/fib/ip6_fib.h>
/**
* @brief
* The GBP FWD DPO. Used in the L3 path to select the correct EPG uplink
* based on the source EPG.
*/
typedef struct gbp_policy_dpo_t_
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
/**
* The protocol of packets using this DPO
*/
dpo_proto_t gpd_proto;
/**
* SClass
*/
sclass_t gpd_sclass;
/**
* sclass scope
*/
gbp_scope_t gpd_scope;
/**
* output sw_if_index
*/
u32 gpd_sw_if_index;
/**
* number of locks.
*/
u16 gpd_locks;
/**
* Stacked DPO on DVR/ADJ of output interface
*/
dpo_id_t gpd_dpo;
} gbp_policy_dpo_t;
extern void gbp_policy_dpo_add_or_lock (dpo_proto_t dproto,
gbp_scope_t scope,
sclass_t sclass,
u32 sw_if_index, dpo_id_t * dpo);
extern dpo_type_t gbp_policy_dpo_get_type (void);
extern vlib_node_registration_t ip4_gbp_policy_dpo_node;
extern vlib_node_registration_t ip6_gbp_policy_dpo_node;
extern vlib_node_registration_t gbp_policy_port_node;
/**
* Types exposed for the Data-plane
*/
extern dpo_type_t gbp_policy_dpo_type;
extern gbp_policy_dpo_t *gbp_policy_dpo_pool;
always_inline gbp_policy_dpo_t *
gbp_policy_dpo_get (index_t index)
{
return (pool_elt_at_index (gbp_policy_dpo_pool, index));
}
static_always_inline const gbp_policy_dpo_t *
gbp_classify_get_gpd (const ip4_address_t * ip4, const ip6_address_t * ip6,
const u32 fib_index)
{
const gbp_policy_dpo_t *gpd;
const dpo_id_t *dpo;
const load_balance_t *lb;
u32 lbi;
if (ip4)
lbi = ip4_fib_forwarding_lookup (fib_index, ip4);
else if (ip6)
lbi = ip6_fib_table_fwding_lookup (&ip6_main, fib_index, ip6);
else
return 0;
lb = load_balance_get (lbi);
dpo = load_balance_get_bucket_i (lb, 0);
if (dpo->dpoi_type != gbp_policy_dpo_type)
return 0;
gpd = gbp_policy_dpo_get (dpo->dpoi_index);
return gpd;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
#endif
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