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/*
*------------------------------------------------------------------
* Copyright (c) 2017 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 _ACL_HASH_LOOKUP_TYPES_H_
#define _ACL_HASH_LOOKUP_TYPES_H_
#include "types.h"
/* The structure representing the single entry with hash representation */
typedef struct {
fa_5tuple_t match;
/* these two entries refer to the original ACL# and rule# within that ACL */
u32 acl_index;
u32 ace_index;
u32 base_mask_type_index;
u8 action;
} hash_ace_info_t;
/*
* The structure holding the information necessary for the hash-based ACL operation
*/
typedef struct {
/* hash ACL applied on these lookup contexts */
u32 *lc_index_list;
hash_ace_info_t *rules;
/* a boolean flag set when the hash acl info is initialized */
int hash_acl_exists;
} hash_acl_info_t;
typedef struct {
acl_rule_t rule;
u32 acl_index;
u32 ace_index;
u32 acl_position;
u32 applied_entry_index;
} collision_match_rule_t;
typedef struct {
/* original non-compiled ACL */
u32 acl_index;
u32 ace_index;
/* the index of the hash_ace_info_t */
u32 hash_ace_info_index;
/* applied mask type index */
u32 mask_type_index;
/*
* index of applied entry, which owns the colliding_rules vector
*/
u32 collision_head_ae_index;
/*
* Collision rule vector for matching - set only on head entry
*/
collision_match_rule_t *colliding_rules;
/*
* number of hits on this entry
*/
u64 hitcount;
/*
* acl position in vector of ACLs within lookup context
*/
u32 acl_position;
/*
* Action of this applied ACE
*/
u8 action;
} applied_hash_ace_entry_t;
typedef struct {
/* applied ACLs so we can track them independently from main ACL module */
u32 *applied_acls;
} applied_hash_acl_info_t;
typedef union {
u64 as_u64;
struct {
u32 applied_entry_index;
u16 reserved_u16;
u8 reserved_u8;
u8 reserved_flags:8;
};
} hash_acl_lookup_value_t;
typedef struct {
u32 mask_type_index;
/* first rule # for this mask */
u32 first_rule_index;
/* Debug Information */
u32 num_entries;
u32 max_collisions;
} hash_applied_mask_info_t;
#define CT_ASSERT_EQUAL(name, x,y) typedef int assert_ ## name ## _compile_time_assertion_failed[((x) == (y))-1]
CT_ASSERT_EQUAL(hash_acl_lookup_value_t_is_u64, sizeof(hash_acl_lookup_value_t), sizeof(u64));
#undef CT_ASSERT_EQUAL
#endif
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