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/*
* Copyright (c) 2016 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 included_acl_h
#define included_acl_h
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/l2/l2_output.h>
#include <vppinfra/hash.h>
#include <vppinfra/error.h>
#include <vppinfra/elog.h>
#define ACL_PLUGIN_VERSION_MAJOR 1
#define ACL_PLUGIN_VERSION_MINOR 1
extern vlib_node_registration_t acl_in_node;
extern vlib_node_registration_t acl_out_node;
void input_acl_packet_match(u32 sw_if_index, vlib_buffer_t * b0, u32 *nextp, u32 *acl_match_p, u32 *rule_match_p, u32 *trace_bitmap);
void output_acl_packet_match(u32 sw_if_index, vlib_buffer_t * b0, u32 *nextp, u32 *acl_match_p, u32 *rule_match_p, u32 *trace_bitmap);
enum address_e { IP4, IP6 };
typedef struct
{
enum address_e type;
union {
ip6_address_t ip6;
ip4_address_t ip4;
} addr;
} address_t;
/*
* ACL rules
*/
typedef struct
{
u8 is_permit;
u8 is_ipv6;
ip46_address_t src;
u8 src_prefixlen;
ip46_address_t dst;
u8 dst_prefixlen;
u8 proto;
u16 src_port_or_type_first;
u16 src_port_or_type_last;
u16 dst_port_or_code_first;
u16 dst_port_or_code_last;
u8 tcp_flags_value;
u8 tcp_flags_mask;
} acl_rule_t;
typedef struct
{
u8 is_permit;
u8 is_ipv6;
u8 src_mac[6];
u8 src_mac_mask[6];
ip46_address_t src_ip_addr;
u8 src_prefixlen;
} macip_acl_rule_t;
/*
* ACL
*/
typedef struct
{
u8 tag[64];
u32 count;
acl_rule_t *rules;
} acl_list_t;
typedef struct
{
u8 tag[64];
u32 count;
macip_acl_rule_t *rules;
/* References to the classifier tables that will enforce the rules */
u32 ip4_table_index;
u32 ip6_table_index;
u32 l2_table_index;
} macip_acl_list_t;
typedef struct {
/* API message ID base */
u16 msg_id_base;
acl_list_t *acls; /* Pool of ACLs */
macip_acl_list_t *macip_acls; /* Pool of MAC-IP ACLs */
/* ACLs associated with interfaces */
u32 **input_acl_vec_by_sw_if_index;
u32 **output_acl_vec_by_sw_if_index;
/*
* Classify tables used to grab the packets for the ACL check,
* and serving as the 5-tuple session tables at the same time
*/
u32 *acl_ip4_input_classify_table_by_sw_if_index;
u32 *acl_ip6_input_classify_table_by_sw_if_index;
u32 *acl_ip4_output_classify_table_by_sw_if_index;
u32 *acl_ip6_output_classify_table_by_sw_if_index;
/* MACIP (input) ACLs associated with the interfaces */
u32 *macip_acl_by_sw_if_index;
/* next indices for our nodes in the l2-classify tables */
u32 l2_input_classify_next_acl;
u32 l2_output_classify_next_acl;
/* next node indices for feature bitmap */
u32 acl_in_node_feat_next_node_index[32];
u32 acl_out_node_feat_next_node_index[32];
/* ACL match actions (must be coherent across in/out ACLs to next indices (can differ) */
u32 acl_in_ip4_match_next[256];
u32 acl_in_ip6_match_next[256];
u32 acl_out_ip4_match_next[256];
u32 acl_out_ip6_match_next[256];
u32 n_match_actions;
/* convenience */
vlib_main_t * vlib_main;
vnet_main_t * vnet_main;
ethernet_main_t * ethernet_main;
} acl_main_t;
extern acl_main_t acl_main;
#endif
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