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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_CONTRACT_H__
#define __GBP_CONTRACT_H__
#include <plugins/gbp/gbp_types.h>
/**
* The key for an Contract
*/
typedef struct gbp_contract_key_t_
{
union
{
struct
{
/**
* source and destination EPGs for which the ACL applies
*/
epg_id_t gck_src;
epg_id_t gck_dst;
};
u64 as_u64;
};
} gbp_contract_key_t;
/**
* The value for an Contract
*/
typedef struct gbp_contract_value_t_
{
union
{
struct
{
/**
* lookup context and acl index
*/
u32 gc_lc_index;
u32 gc_acl_index;
};
u64 as_u64;
};
} gbp_contract_value_t;
/**
* A Group Based Policy Contract.
* Determines the ACL that applies to traffic pass between two endpoint groups
*/
typedef struct gbp_contract_t_
{
/**
* source and destination EPGs
*/
gbp_contract_key_t gc_key;
/**
* The ACL to apply for packets from the source to the destination EPG
*/
gbp_contract_value_t gc_value;
} gbp_contract_t;
/**
* EPG src,dst pair to ACL mapping table, aka contract DB
*/
typedef struct gbp_contract_db_t_
{
/**
* We can form a u64 key from the pair, so use a simple hash table
*/
uword *gc_hash;
} gbp_contract_db_t;
extern void gbp_contract_update (epg_id_t src_epg,
epg_id_t dst_epg, u32 acl_index);
extern void gbp_contract_delete (epg_id_t src_epg, epg_id_t dst_epg);
typedef int (*gbp_contract_cb_t) (gbp_contract_t * gbpe, void *ctx);
extern void gbp_contract_walk (gbp_contract_cb_t bgpe, void *ctx);
/**
* DP functions and databases
*/
extern gbp_contract_db_t gbp_contract_db;
always_inline u64
gbp_acl_lookup (gbp_contract_key_t * key)
{
uword *p;
p = hash_get (gbp_contract_db.gc_hash, key->as_u64);
if (NULL != p)
return (p[0]);
return (~0);
}
#endif
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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