babeld.h

/*
Copyright (c) 2007, 2008 by Juliusz Chroboczek

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

#define INFINITY ((unsigned short)(~0))

#ifndef RTPROT_BABEL
#define RTPROT_BABEL 42
#endif

#define RTPROT_BABEL_LOCAL -2

#undef MAX
#undef MIN

#define MAX(x,y) ((x)<=(y)?(y):(x))
#define MIN(x,y) ((x)<=(y)?(x):(y))

#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
/* nothing */
#elif defined(__GNUC__)
#define inline __inline
#if  (__GNUC__ >= 3)
#define restrict __restrict
#else
#define restrict /**/
#endif
#else
#define inline /**/
#define restrict /**/
#endif

#if defined(__GNUC__) && (__GNUC__ >= 3)
#define ATTRIBUTE(x) __attribute__ (x)
#define LIKELY(_x) __builtin_expect(!!(_x), 1)
#define UNLIKELY(_x) __builtin_expect(!!(_x), 0)
#else
#define ATTRIBUTE(x) /**/
#define LIKELY(_x) !!(_x)
#define UNLIKELY(_x) !!(_x)
#endif

#if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
#define COLD __attribute__ ((cold))
#else
#define COLD /**/
#endif

#ifndef IF_NAMESIZE
#include <sys/socket.h>
#include <net/if.h>
#endif

#ifdef HAVE_VALGRIND
#include <valgrind/memcheck.h>
#else
#ifndef VALGRIND_MAKE_MEM_UNDEFINED
#define VALGRIND_MAKE_MEM_UNDEFINED(a, b) do {} while(0)
#endif
#ifndef VALGRIND_CHECK_MEM_IS_DEFINED
#define VALGRIND_CHECK_MEM_IS_DEFINED(a, b) do {} while(0)
#endif
#endif

extern struct timeval now;
extern int debug;
extern time_t reboot_time;
extern int default_wireless_hello_interval, default_wired_hello_interval;
extern int resend_delay;
extern int random_id;
extern int skip_kernel_setup;
extern int do_daemonise;
extern const char *logfile, *pidfile, *state_file;
extern int link_detect;
extern int all_wireless;
extern int has_ipv6_subtrees;
extern int has_v4viav6;

extern unsigned char myid[8];
extern int have_id;

extern const unsigned char zeroes[16], ones[16];

extern int protocol_port, local_server_port;
extern char *local_server_path;
extern int local_server_write;
extern unsigned char protocol_group[16];
extern int protocol_socket;
extern int kernel_socket;
extern int kernel_check_interval;
extern int max_request_hopcount;
extern int shutdown_delay_msec;

int babel_main(char **interface_names, int num_interface_names);
void schedule_neighbours_check(int msecs, int override);
void schedule_interfaces_check(int msecs, int override);
int resize_receive_buffer(int size);
int reopen_logfile(void);