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diff --git a/babeld/babeld.h b/babeld/babeld.h
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+++ b/babeld/babeld.h
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+/*  
+ *  This file is free software: you may copy, redistribute and/or modify it  
+ *  under the terms of the GNU General Public License as published by the  
+ *  Free Software Foundation, either version 2 of the License, or (at your  
+ *  option) any later version.  
+ *  
+ *  This file is distributed in the hope that it will be useful, but  
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of  
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  
+ *  General Public License for more details.  
+ *  
+ *  You should have received a copy of the GNU General Public License  
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.  
+ *  
+ * This file incorporates work covered by the following copyright and  
+ * permission notice:  
+ *  
+Copyright (c) 2007, 2008 by Juliusz Chroboczek
+Copyright 2011 by Matthieu Boutier and 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.
+*/
+
+#ifndef BABEL_BABELD_H
+#define BABEL_BABELD_H
+
+#include <zebra.h>
+#include "vty.h"
+
+#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
+
+
+#define BABEL_VTY_PORT 2609
+#define BABEL_DEFAULT_CONFIG "babeld.conf"
+#define BABEL_VERSION "0.1 for quagga"
+
+/* Values in milliseconds */
+#define BABEL_DEFAULT_HELLO_INTERVAL 4000
+#define BABEL_DEFAULT_UPDATE_INTERVAL 16000
+#define BABEL_DEFAULT_RESEND_DELAY 2000
+
+
+/* Babel socket. */
+extern int protocol_socket;
+
+/* Babel structure. */
+struct babel
+{
+    /* Babel threads. */
+    struct thread *t_read;    /* on Babel protocol's socket */
+    struct thread *t_update;  /* timers */
+};
+
+
+extern void babeld_quagga_init(void);
+extern int input_filter(const unsigned char *id,
+                        const unsigned char *prefix, unsigned short plen,
+                        const unsigned char *neigh, unsigned int ifindex);
+extern int output_filter(const unsigned char *id, const unsigned char *prefix,
+                         unsigned short plen, unsigned int ifindex);
+extern int redistribute_filter(const unsigned char *prefix, unsigned short plen,
+                               unsigned int ifindex, int proto);
+extern int resize_receive_buffer(int size);
+extern void schedule_neighbours_check(int msecs, int override);
+
+
+#endif /* BABEL_BABELD_H */