babeld/babeld.h

   1 // SPDX-License-Identifier: MIT
   2 /*
   3 Copyright (c) 2007, 2008 by Juliusz Chroboczek
   4 Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek
   5 */
   6
   7 #ifndef BABEL_BABELD_H
   8 #define BABEL_BABELD_H
   9
  10 #include <zebra.h>
  11 #include "vty.h"
  12
  13 #define INFINITY ((unsigned short)(~0))
  14
  15 #ifndef RTPROT_BABEL
  16 #define RTPROT_BABEL 42
  17 #endif
  18
  19 #define RTPROT_BABEL_LOCAL -2
  20
  21 #undef MAX
  22 #undef MIN
  23
  24 #define MAX(x,y) ((x)<=(y)?(y):(x))
  25 #define MIN(x,y) ((x)<=(y)?(x):(y))
  26
  27 #if defined(__GNUC__) && (__GNUC__ >= 3)
  28 #define ATTRIBUTE(x) __attribute__ (x)
  29 #else
  30 #define ATTRIBUTE(x) /**/
  31 #endif
  32
  33 #if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
  34 #define COLD __attribute__ ((cold))
  35 #else
  36 #define COLD /**/
  37 #endif
  38
  39 #ifndef IF_NAMESIZE
  40 #include <sys/socket.h>
  41 #include <net/if.h>
  42 #endif
  43
  44 #ifdef HAVE_VALGRIND
  45 #include <valgrind/memcheck.h>
  46 #else
  47 #ifndef VALGRIND_MAKE_MEM_UNDEFINED
  48 #define VALGRIND_MAKE_MEM_UNDEFINED(a, b) do {} while(0)
  49 #endif
  50 #ifndef VALGRIND_CHECK_MEM_IS_DEFINED
  51 #define VALGRIND_CHECK_MEM_IS_DEFINED(a, b) do {} while(0)
  52 #endif
  53 #endif
  54
  55
  56 #define BABEL_VTY_PORT 2609
  57 #define BABEL_DEFAULT_CONFIG "babeld.conf"
  58
  59 /* Values in milliseconds */
  60 #define BABEL_DEFAULT_HELLO_INTERVAL 4000
  61 #define BABEL_DEFAULT_UPDATE_INTERVAL 16000
  62 #define BABEL_DEFAULT_RESEND_DELAY 2000
  63 #define BABEL_DEFAULT_RTT_DECAY 42
  64
  65 /* Values in microseconds */
  66 #define BABEL_DEFAULT_RTT_MIN 10000
  67 #define BABEL_DEFAULT_RTT_MAX 120000
  68
  69 /* In units of seconds */
  70 #define BABEL_DEFAULT_SMOOTHING_HALF_LIFE 4
  71
  72 /* In units of 1/256. */
  73 #define BABEL_DEFAULT_DIVERSITY_FACTOR 256
  74
  75 #define BABEL_DEFAULT_RXCOST_WIRED 96
  76 #define BABEL_DEFAULT_RXCOST_WIRELESS 256
  77 #define BABEL_DEFAULT_MAX_RTT_PENALTY 150
  78
  79 /* Babel structure. */
  80 struct babel
  81 {
  82     /* Babel threads. */
  83     struct event *t_read;   /* on Babel protocol's socket */
  84     struct event *t_update; /* timers */
  85     /* distribute_ctx */
  86     struct distribute_ctx *distribute_ctx;
  87 };
  88
  89 extern struct zebra_privs_t babeld_privs;
  90
  91 extern void babeld_quagga_init(void);
  92 extern int input_filter(const unsigned char *id,
  93                         const unsigned char *prefix, unsigned short plen,
  94                         const unsigned char *neigh, unsigned int ifindex);
  95 extern int output_filter(const unsigned char *id, const unsigned char *prefix,
  96                          unsigned short plen, unsigned int ifindex);
  97 extern int redistribute_filter(const unsigned char *prefix, unsigned short plen,
  98                                unsigned int ifindex, int proto);
  99 extern int resize_receive_buffer(int size);
 100 extern void schedule_neighbours_check(int msecs, int override);
 101 extern struct babel *babel_lookup(void);
 102
 103 #endif /* BABEL_BABELD_H */