babeld/babeld.h

   1 /*
   2  *  This file is free software: you may copy, redistribute and/or modify it
   3  *  under the terms of the GNU General Public License as published by the
   4  *  Free Software Foundation, either version 2 of the License, or (at your
   5  *  option) any later version.
   6  *
   7  *  This file is distributed in the hope that it will be useful, but
   8  *  WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  10  *  General Public License for more details.
  11  *
  12  *  You should have received a copy of the GNU General Public License
  13  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14  *
  15  * This file incorporates work covered by the following copyright and
  16  * permission notice:
  17  *
  18 Copyright (c) 2007, 2008 by Juliusz Chroboczek
  19 Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek
  20
  21 Permission is hereby granted, free of charge, to any person obtaining a copy
  22 of this software and associated documentation files (the "Software"), to deal
  23 in the Software without restriction, including without limitation the rights
  24 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  25 copies of the Software, and to permit persons to whom the Software is
  26 furnished to do so, subject to the following conditions:
  27
  28 The above copyright notice and this permission notice shall be included in
  29 all copies or substantial portions of the Software.
  30
  31 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  32 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  33 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  34 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  35 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  36 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  37 THE SOFTWARE.
  38 */
  39
  40 #ifndef BABEL_BABELD_H
  41 #define BABEL_BABELD_H
  42
  43 #include <zebra.h>
  44 #include "vty.h"
  45
  46 #define INFINITY ((unsigned short)(~0))
  47
  48 #ifndef RTPROT_BABEL
  49 #define RTPROT_BABEL 42
  50 #endif
  51
  52 #define RTPROT_BABEL_LOCAL -2
  53
  54 #undef MAX
  55 #undef MIN
  56
  57 #define MAX(x,y) ((x)<=(y)?(y):(x))
  58 #define MIN(x,y) ((x)<=(y)?(x):(y))
  59
  60 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
  61 /* nothing */
  62 #elif defined(__GNUC__)
  63 #define inline __inline
  64 #if  (__GNUC__ >= 3)
  65 #define restrict __restrict
  66 #else
  67 #define restrict /**/
  68 #endif
  69 #else
  70 #define inline /**/
  71 #define restrict /**/
  72 #endif
  73
  74 #if defined(__GNUC__) && (__GNUC__ >= 3)
  75 #define ATTRIBUTE(x) __attribute__ (x)
  76 #define LIKELY(_x) __builtin_expect(!!(_x), 1)
  77 #define UNLIKELY(_x) __builtin_expect(!!(_x), 0)
  78 #else
  79 #define ATTRIBUTE(x) /**/
  80 #define LIKELY(_x) !!(_x)
  81 #define UNLIKELY(_x) !!(_x)
  82 #endif
  83
  84 #if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
  85 #define COLD __attribute__ ((cold))
  86 #else
  87 #define COLD /**/
  88 #endif
  89
  90 #ifndef IF_NAMESIZE
  91 #include <sys/socket.h>
  92 #include <net/if.h>
  93 #endif
  94
  95 #ifdef HAVE_VALGRIND
  96 #include <valgrind/memcheck.h>
  97 #else
  98 #ifndef VALGRIND_MAKE_MEM_UNDEFINED
  99 #define VALGRIND_MAKE_MEM_UNDEFINED(a, b) do {} while(0)
 100 #endif
 101 #ifndef VALGRIND_CHECK_MEM_IS_DEFINED
 102 #define VALGRIND_CHECK_MEM_IS_DEFINED(a, b) do {} while(0)
 103 #endif
 104 #endif
 105
 106
 107 #define BABEL_VTY_PORT 2609
 108 #define BABEL_DEFAULT_CONFIG "babeld.conf"
 109 #define BABEL_VERSION "0.1 for quagga"
 110
 111 /* Values in milliseconds */
 112 #define BABEL_DEFAULT_HELLO_INTERVAL 4000
 113 #define BABEL_DEFAULT_UPDATE_INTERVAL 16000
 114 #define BABEL_DEFAULT_RESEND_DELAY 2000
 115
 116
 117 /* Babel socket. */
 118 extern int protocol_socket;
 119
 120 /* Babel structure. */
 121 struct babel
 122 {
 123     /* Babel threads. */
 124     struct thread *t_read;    /* on Babel protocol's socket */
 125     struct thread *t_update;  /* timers */
 126 };
 127
 128
 129 extern void babeld_quagga_init(void);
 130 extern int input_filter(const unsigned char *id,
 131                         const unsigned char *prefix, unsigned short plen,
 132                         const unsigned char *neigh, unsigned int ifindex);
 133 extern int output_filter(const unsigned char *id, const unsigned char *prefix,
 134                          unsigned short plen, unsigned int ifindex);
 135 extern int redistribute_filter(const unsigned char *prefix, unsigned short plen,
 136                                unsigned int ifindex, int proto);
 137 extern int resize_receive_buffer(int size);
 138 extern void schedule_neighbours_check(int msecs, int override);
 139
 140
 141 #endif /* BABEL_BABELD_H */