| /* |
| * 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. |
| * |
| * clatd.h - main routines used by clatd |
| */ |
| #ifndef __CLATD_H__ |
| #define __CLATD_H__ |
| |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <sys/uio.h> |
| |
| struct tun_data; |
| |
| #define MAXMTU 65536 |
| #define PACKETLEN (MAXMTU + sizeof(struct tun_pi)) |
| #define CLATD_VERSION "1.5" |
| |
| #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| |
| // how frequently (in seconds) to poll for an address change while traffic is passing |
| #define INTERFACE_POLL_FREQUENCY 30 |
| |
| // how frequently (in seconds) to poll for an address change while there is no traffic |
| #define NO_TRAFFIC_INTERFACE_POLL_FREQUENCY 90 |
| |
| extern volatile sig_atomic_t running; |
| |
| int ipv6_address_changed(const char *interface); |
| void event_loop(struct tun_data *tunnel); |
| |
| /* function: parse_int |
| * parses a string as a decimal/hex/octal signed integer |
| * str - the string to parse |
| * out - the signed integer to write to, gets clobbered on failure |
| */ |
| static inline int parse_int(const char *str, int *out) { |
| char *end_ptr; |
| *out = strtol(str, &end_ptr, 0); |
| return *str && !*end_ptr; |
| } |
| |
| /* function: parse_unsigned |
| * parses a string as a decimal/hex/octal unsigned integer |
| * str - the string to parse |
| * out - the unsigned integer to write to, gets clobbered on failure |
| */ |
| static inline int parse_unsigned(const char *str, unsigned *out) { |
| char *end_ptr; |
| *out = strtoul(str, &end_ptr, 0); |
| return *str && !*end_ptr; |
| } |
| |
| #endif /* __CLATD_H__ */ |