| /* |
| * 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> |
| |
| #include "ring.h" |
| |
| struct tun_data { |
| char device4[IFNAMSIZ]; |
| int read_fd6, write_fd6, fd4; |
| struct packet_ring ring; |
| }; |
| |
| 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__ */ |