| Paul Jakma | 5734509 | 2011-12-25 17:52:09 +0100 | [diff] [blame] | 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 | |
| 20 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| 21 | of this software and associated documentation files (the "Software"), to deal |
| 22 | in the Software without restriction, including without limitation the rights |
| 23 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 24 | copies of the Software, and to permit persons to whom the Software is |
| 25 | furnished to do so, subject to the following conditions: |
| 26 | |
| 27 | The above copyright notice and this permission notice shall be included in |
| 28 | all copies or substantial portions of the Software. |
| 29 | |
| 30 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 31 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 32 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 33 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 34 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 35 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 36 | THE SOFTWARE. |
| 37 | */ |
| 38 | |
| 39 | struct neighbour { |
| 40 | struct neighbour *next; |
| 41 | /* This is -1 when unknown, so don't make it unsigned */ |
| 42 | int hello_seqno; |
| 43 | unsigned char address[16]; |
| 44 | unsigned short reach; |
| 45 | unsigned short txcost; |
| 46 | struct timeval hello_time; |
| 47 | struct timeval ihu_time; |
| 48 | unsigned short hello_interval; /* in centiseconds */ |
| 49 | unsigned short ihu_interval; /* in centiseconds */ |
| 50 | struct interface *ifp; |
| 51 | }; |
| 52 | |
| 53 | extern struct neighbour *neighs; |
| 54 | |
| 55 | #define FOR_ALL_NEIGHBOURS(_neigh) \ |
| 56 | for(_neigh = neighs; _neigh; _neigh = _neigh->next) |
| 57 | |
| 58 | int neighbour_valid(struct neighbour *neigh); |
| 59 | void flush_neighbour(struct neighbour *neigh); |
| 60 | struct neighbour *find_neighbour(const unsigned char *address, |
| 61 | struct interface *ifp); |
| 62 | int update_neighbour(struct neighbour *neigh, int hello, int hello_interval); |
| 63 | unsigned check_neighbours(void); |
| 64 | unsigned neighbour_txcost(struct neighbour *neigh); |
| 65 | unsigned neighbour_rxcost(struct neighbour *neigh); |
| 66 | unsigned neighbour_cost(struct neighbour *neigh); |