Return to babel_interface.h CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / quagga / babeld

Annotation of embedaddon/quagga/babeld/babel_interface.h, revision 1.1

1.1     ! misho       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 2011 by Matthieu Boutier and 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: #ifndef BABEL_INTERFACE_H
        !            40: #define BABEL_INTERFACE_H
        !            41: 
        !            42: #include <zebra.h>
        !            43: #include "zclient.h"
        !            44: #include "vty.h"
        !            45: 
        !            46: #define CONFIG_DEFAULT 0
        !            47: #define CONFIG_NO 1
        !            48: #define CONFIG_YES 2
        !            49: 
        !            50: /* babeld interface informations */
        !            51: struct babel_interface {
        !            52:     unsigned short flags;                     /* see below */
        !            53:     unsigned short cost;
        !            54:     int channel;
        !            55:     struct timeval hello_timeout;
        !            56:     struct timeval update_timeout;
        !            57:     struct timeval flush_timeout;
        !            58:     struct timeval update_flush_timeout;
        !            59:     unsigned char *ipv4;
        !            60:     int buffered;
        !            61:     int bufsize;
        !            62:     char have_buffered_hello;
        !            63:     char have_buffered_id;
        !            64:     char have_buffered_nh;
        !            65:     char have_buffered_prefix;
        !            66:     unsigned char buffered_id[16];
        !            67:     unsigned char buffered_nh[4];
        !            68:     unsigned char buffered_prefix[16];
        !            69:     unsigned char *sendbuf;
        !            70:     struct buffered_update *buffered_updates;
        !            71:     int num_buffered_updates;
        !            72:     int update_bufsize;
        !            73:     time_t bucket_time;
        !            74:     unsigned int bucket;
        !            75:     time_t last_update_time;
        !            76:     unsigned short hello_seqno;
        !            77:     unsigned hello_interval;
        !            78:     unsigned update_interval;
        !            79: 
        !            80:     /* For filter type slot. */
        !            81: #define BABEL_FILTER_IN  0
        !            82: #define BABEL_FILTER_OUT 1
        !            83: #define BABEL_FILTER_MAX 2
        !            84:     struct access_list *list[BABEL_FILTER_MAX];               /* Access-list. */
        !            85:     struct prefix_list *prefix[BABEL_FILTER_MAX];             /* Prefix-list. */
        !            86: };
        !            87: 
        !            88: typedef struct babel_interface babel_interface_nfo;
        !            89: static inline babel_interface_nfo* babel_get_if_nfo(struct interface *ifp)
        !            90: {
        !            91:     return ((babel_interface_nfo*) ifp->info);
        !            92: }
        !            93: 
        !            94: /* babel_interface_nfo flags */
        !            95: #define BABEL_IF_IS_UP         (1 << 0)
        !            96: #define BABEL_IF_WIRED         (1 << 1)
        !            97: #define BABEL_IF_SPLIT_HORIZON (1 << 2)
        !            98: #define BABEL_IF_LQ            (1 << 3)
        !            99: #define BABEL_IF_FARAWAY       (1 << 4)
        !           100: 
        !           101: /* Only INTERFERING can appear on the wire. */
        !           102: #define BABEL_IF_CHANNEL_UNKNOWN 0
        !           103: #define BABEL_IF_CHANNEL_INTERFERING 255
        !           104: #define BABEL_IF_CHANNEL_NONINTERFERING -2
        !           105: 
        !           106: static inline int
        !           107: if_up(struct interface *ifp)
        !           108: {
        !           109:     return (if_is_operative(ifp) &&
        !           110:             ifp->connected != NULL &&
        !           111:             (babel_get_if_nfo(ifp)->flags & BABEL_IF_IS_UP));
        !           112: }
        !           113: 
        !           114: /* types:
        !           115:  struct interface _ifp, struct listnode node */
        !           116: #define FOR_ALL_INTERFACES(_ifp, _node)                                              \
        !           117:     for(ALL_LIST_ELEMENTS_RO(iflist, _node, _ifp))
        !           118: 
        !           119: /* types:
        !           120:  struct interface *ifp, struct connected *_connected, struct listnode *node */
        !           121: #define FOR_ALL_INTERFACES_ADDRESSES(ifp, _connected, _node)                   \
        !           122:     for(ALL_LIST_ELEMENTS_RO(ifp->connected, _node, _connected))
        !           123: 
        !           124: struct buffered_update {
        !           125:     unsigned char id[8];
        !           126:     unsigned char prefix[16];
        !           127:     unsigned char plen;
        !           128:     unsigned char pad[3];
        !           129: };
        !           130: 
        !           131: 
        !           132: /* init function */
        !           133: void babel_if_init(void);
        !           134: 
        !           135: /* Callback functions for zebra client */
        !           136: int babel_interface_up (int, struct zclient *, zebra_size_t);
        !           137: int babel_interface_down (int, struct zclient *, zebra_size_t);
        !           138: int babel_interface_add (int, struct zclient *, zebra_size_t);
        !           139: int babel_interface_delete (int, struct zclient *, zebra_size_t);
        !           140: int babel_interface_address_add (int, struct zclient *, zebra_size_t);
        !           141: int babel_interface_address_delete (int, struct zclient *, zebra_size_t);
        !           142: 
        !           143: unsigned jitter(babel_interface_nfo *, int);
        !           144: unsigned update_jitter(babel_interface_nfo *babel_ifp, int urgent);
        !           145: /* return "true" if "address" is one of our ipv6 addresses */
        !           146: int is_interface_ll_address(struct interface *ifp, const unsigned char *address);
        !           147: /* Send retraction to all, and reset all interfaces statistics. */
        !           148: void babel_interface_close_all(void);
        !           149: extern int babel_enable_if_config_write (struct vty *);
        !           150: 
        !           151: 
        !           152: #endif