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/*
* Copyright 2011 Daniel Drown
*
* 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.
*
* config.h - configuration settings
*/
#ifndef __CONFIG_H__
#define __CONFIG_H__
#include <linux/if.h>
#include <netinet/in.h>
struct tun_data {
char device4[IFNAMSIZ];
int read_fd6, write_fd6, fd4;
};
struct clat_config {
struct in6_addr ipv6_local_subnet;
struct in_addr ipv4_local_subnet;
struct in6_addr plat_subnet;
const char *native_ipv6_interface;
};
extern struct clat_config Global_Clatd_Config;
/* function: ipv6_prefix_equal
* compares the /64 prefixes of two ipv6 addresses.
* a1 - first address
* a2 - second address
* returns: 0 if the subnets are different, 1 if they are the same.
*/
static inline int ipv6_prefix_equal(struct in6_addr *a1, struct in6_addr *a2) {
return !memcmp(a1, a2, 8);
}
#endif /* __CONFIG_H__ */
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