babeld: Initial import, for Babel routing protocol.
* Initial import of the Babel routing protocol, ported to Quagga.
* LICENCE: Update the original LICENCE file to include all known potentially
applicable copyright claims. Ask that any future contributors to babeld/
grant MIT/X11 licence to their work.
* *.{c,h}: Add GPL headers, in according with the SFLC guidance on
dealing with potentially mixed GPL/other licensed work, at:
https://www.softwarefreedom.org/resources/2007/gpl-non-gpl-collaboration.html
diff --git a/babeld/neighbour.h b/babeld/neighbour.h
new file mode 100644
index 0000000..cf8c0f0
--- /dev/null
+++ b/babeld/neighbour.h
@@ -0,0 +1,66 @@
+/*
+ * 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
+
+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.
+*/
+
+struct neighbour {
+ struct neighbour *next;
+ /* This is -1 when unknown, so don't make it unsigned */
+ int hello_seqno;
+ unsigned char address[16];
+ unsigned short reach;
+ unsigned short txcost;
+ struct timeval hello_time;
+ struct timeval ihu_time;
+ unsigned short hello_interval; /* in centiseconds */
+ unsigned short ihu_interval; /* in centiseconds */
+ struct interface *ifp;
+};
+
+extern struct neighbour *neighs;
+
+#define FOR_ALL_NEIGHBOURS(_neigh) \
+ for(_neigh = neighs; _neigh; _neigh = _neigh->next)
+
+int neighbour_valid(struct neighbour *neigh);
+void flush_neighbour(struct neighbour *neigh);
+struct neighbour *find_neighbour(const unsigned char *address,
+ struct interface *ifp);
+int update_neighbour(struct neighbour *neigh, int hello, int hello_interval);
+unsigned check_neighbours(void);
+unsigned neighbour_txcost(struct neighbour *neigh);
+unsigned neighbour_rxcost(struct neighbour *neigh);
+unsigned neighbour_cost(struct neighbour *neigh);