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Daniel Drowna45056e2012-03-23 10:42:54 -05001/*
2 * Copyright 2011 Daniel Drown
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 * config.h - configuration settings
17 */
18#ifndef __CONFIG_H__
19#define __CONFIG_H__
20
Alan Viverettecfbb4ac2014-12-08 16:30:50 -080021#include <linux/if.h>
junyulaic4e591a2018-11-26 22:36:10 +090022#include <netinet/in.h>
Daniel Drowna45056e2012-03-23 10:42:54 -050023
Sreeram Ramachandran74151e92014-10-23 09:38:19 -070024#define DEFAULT_IPV4_LOCAL_SUBNET "192.0.0.4"
Lorenzo Colitti798f9932014-10-31 21:54:33 +090025#define DEFAULT_IPV4_LOCAL_PREFIXLEN "29"
Daniel Drowna45056e2012-03-23 10:42:54 -050026
27struct clat_config {
Daniel Drowna45056e2012-03-23 10:42:54 -050028 struct in6_addr ipv6_local_subnet;
29 struct in6_addr ipv6_host_id;
30 struct in_addr ipv4_local_subnet;
Lorenzo Colitti798f9932014-10-31 21:54:33 +090031 int16_t ipv4_local_prefixlen;
Daniel Drowna45056e2012-03-23 10:42:54 -050032 struct in6_addr plat_subnet;
Lorenzo Colitti1352a3a2014-10-21 13:41:21 +090033 char *default_pdp_interface;
Lorenzo Colitti2596f422014-11-10 17:00:02 -080034 int use_dynamic_iid;
Daniel Drowna45056e2012-03-23 10:42:54 -050035};
36
37extern struct clat_config Global_Clatd_Config;
38
Lorenzo Colitti27da0ad2020-06-01 12:15:20 +090039int read_config(const char *file, const char *uplink_interface);
Daniel Drowna45056e2012-03-23 10:42:54 -050040void config_generate_local_ipv6_subnet(struct in6_addr *interface_ip);
Lorenzo Colitti798f9932014-10-31 21:54:33 +090041in_addr_t config_select_ipv4_address(const struct in_addr *ip, int16_t prefixlen);
Lorenzo Colitti98089522014-10-09 22:29:45 +090042int ipv6_prefix_equal(struct in6_addr *a1, struct in6_addr *a2);
Daniel Drowna45056e2012-03-23 10:42:54 -050043
Lorenzo Colitti798f9932014-10-31 21:54:33 +090044typedef int (*addr_free_func)(in_addr_t addr);
45
Daniel Drowna45056e2012-03-23 10:42:54 -050046#endif /* __CONFIG_H__ */