acl_types.api

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/* Hey Emacs use -*- mode: C -*- */
/*
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Copyright 2019 Vinci Consulting Corp.  All Rights Reserved.
 * 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.
 */

 
/** \brief Access List Rule entry
    @param is_permit - deny (0), permit (1), or permit+reflect(2) action on this rule.
    @param is_ipv6   - IP addresses in this rule are IPv6 (1) or IPv4 (0)
    @param src_ip_addr - Source prefix value
    @param src_ip_prefix_len - Source prefix length
    @param dst_ip_addr - Destination prefix value
    @param dst_ip_prefix_len - Destination prefix length
    @param proto - L4 protocol (http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml)
    @param srcport_or_icmptype_first - beginning of source port or ICMP4/6 type range
    @param srcport_or_icmptype_last - end of source port or ICMP4/6 type range
    @param dstport_or_icmpcode_first - beginning of destination port or ICMP4/6 code range
    @param dstport_or_icmpcode_last - end of destination port or ICMP4/6 code range
    @param tcp_flags_mask - if proto==6, match masked TCP flags with this value
    @param tcp_flags_value - if proto==6, mask to AND the TCP flags in the packet with
*/

typedef acl_rule
{
  u8 is_permit;
  u8 is_ipv6;
  u8 src_ip_addr[16];
  u8 src_ip_prefix_len;
  u8 dst_ip_addr[16];
  u8 dst_ip_prefix_len;
/*
 * L4 protocol. IANA number. 1 = ICMP, 58 = ICMPv6, 6 = TCP, 17 = UDP.
 * 0 => ignore L4 and ignore the ports/tcpflags when matching.
 */
  u8 proto;
/*
 * If the L4 protocol is TCP or UDP, the below
 * hold ranges of ports, else if the L4 is ICMP/ICMPv6
 * they hold ranges of ICMP(v6) types/codes.
 *
 * Ranges are inclusive, i.e. to match "any" TCP/UDP port,
 * use first=0,last=65535. For ICMP(v6),
 * use first=0,last=255.
 */
  u16 srcport_or_icmptype_first;
  u16 srcport_or_icmptype_last;
  u16 dstport_or_icmpcode_first;
  u16 dstport_or_icmpcode_last;
/*
 * for proto = 6, this matches if the
 * TCP flags in the packet, ANDed with tcp_flags_mask,
 * is equal to tcp_flags_value.
 */
  u8 tcp_flags_mask;
  u8 tcp_flags_value;
};


/** \brief MACIP Access List Rule entry
    @param is_permit - deny (0), permit (1) action on this rule.
    @param is_ipv6   - IP addresses in this rule are IPv6 (1) or IPv4 (0)
    @param src_mac - match masked source MAC address against this value
    @param src_mac_mask - AND source MAC address with this value before matching
    @param src_ip_addr - Source prefix value
    @param src_ip_prefix_len - Source prefix length
*/

typedef macip_acl_rule
{
  u8 is_permit;
  u8 is_ipv6;
/*
 * The source mac of the packet ANDed with src_mac_mask.
 * The source ip[46] address in the packet is matched
 * against src_ip_addr, with src_ip_prefix_len set to 0.
 *
 * For better performance, minimize the number of
 * (src_mac_mask, src_ip_prefix_len) combinations
 * in a MACIP ACL.
 */
  u8 src_mac[6];
  u8 src_mac_mask[6];
  u8 src_ip_addr[16];
  u8 src_ip_prefix_len;
};