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- Committer: Bazaar Package Importer
- Author(s): Holger Levsen
- Date: 2007-11-26 09:10:49 UTC
- Revision ID: james.westby@ubuntu.com-20071126091049-9fqg546f2c4ct759
Tags: upstream-0.2
Import upstream version 0.2
added
removed
batman.h
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/*
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* Copyright (C) 2006 B.A.T.M.A.N. contributors:
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* Thomas Lopatic, Corinna 'Elektra' Aichele, Axel Neumann, Marek Lindner
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*
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*/
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#ifndef _BATMAN_BATMAN_H
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#define _BATMAN_BATMAN_H
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <pthread.h>
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#include <sys/un.h>
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#include <stdint.h>
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#include "list.h"
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#include "bitarray.h"
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#include "hash.h"
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#include "allocate.h"
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#include "profile.h"
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#define SOURCE_VERSION "0.2" //put exactly one distinct word inside the string like "0.3-pre-alpha" or "0.3-rc1" or "0.3"
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#ifndef REVISION_VERSION
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#define REVISION_VERSION "0"
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#endif
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#define COMPAT_VERSION 3
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#define PORT 1966
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#define UNIDIRECTIONAL 0x80
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#define DIRECTLINK 0x40
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#define ADDR_STR_LEN 16
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#define UNIX_PATH "/var/run/batmand.socket"
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/* #define PROFILE_DATA */
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/*
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* No configuration files or fancy command line switches yet
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* To experiment with B.A.T.M.A.N. settings change them here
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* and recompile the code
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* Here is the stuff you may want to play with:
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*/
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#define JITTER 100
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#define TTL 50 /* Time To Live of broadcast messages */
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#define BIDIRECT_TIMEOUT 2
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#define PURGE_TIMEOUT 200000 /* purge originators after time in ms if no valid packet comes in -> TODO: check influence on SEQ_RANGE */
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#define SEQ_RANGE 128 /* sliding packet range of received orginator messages in squence numbers (should be a multiple of our word size) */
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#define NUM_WORDS ( SEQ_RANGE / WORD_BIT_SIZE ) + ( ( SEQ_RANGE % WORD_BIT_SIZE > 0)? 1 : 0 )
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extern uint8_t debug_level;
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extern uint8_t gateway_class;
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extern uint8_t routing_class;
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extern uint8_t num_hna;
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extern int16_t orginator_interval;
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extern uint32_t pref_gateway;
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extern unsigned char *hna_buff;
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extern struct gw_node *curr_gateway;
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extern pthread_t curr_gateway_thread_id;
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extern pthread_mutex_t curr_gw_mutex;
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extern uint8_t found_ifs;
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extern int32_t receive_max_sock;
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extern fd_set receive_wait_set;
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extern uint8_t unix_client;
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extern struct hashtable_t *orig_hash;
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extern struct list_head if_list;
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extern struct list_head hna_list;
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extern struct list_head gw_list;
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extern struct list_head forw_list;
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extern struct vis_if vis_if;
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extern struct unix_if unix_if;
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extern struct debug_clients debug_clients;
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extern char *gw2string[];
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struct packet
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{
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uint32_t orig;
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uint8_t flags; /* 0x80: UNIDIRECTIONAL link, 0x40: DIRECTLINK flag, ... */
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uint8_t ttl;
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uint16_t seqno;
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uint8_t gwflags; /* flags related to gateway functions: gateway class */
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uint8_t version; /* batman version field */
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} __attribute__((packed));
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struct orig_node /* structure for orig_list maintaining nodes of mesh */
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{
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uint32_t orig;
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struct neigh_node *router;
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struct batman_if *batman_if;
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uint16_t *bidirect_link; /* if node is a bidrectional neighbour, when my originator packet was broadcasted (replied) by this node and received by me */
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uint32_t last_valid; /* when last packet from this node was received */
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uint8_t gwflags; /* flags related to gateway functions: gateway class */
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unsigned char *hna_buff;
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int16_t hna_buff_len;
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uint16_t last_seqno; /* last and best known squence number */
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struct list_head neigh_list;
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};
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struct neigh_node
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{
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struct list_head list;
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uint32_t addr;
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uint8_t packet_count;
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uint8_t last_ttl; /* ttl of last received packet */
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uint32_t last_valid; /* when last packet via this neighbour was received */
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TYPE_OF_WORD seq_bits[ NUM_WORDS ];
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struct batman_if *if_incoming;
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};
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struct hna_node
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{
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struct list_head list;
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uint32_t addr;
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uint16_t netmask;
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};
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struct forw_node /* structure for forw_list maintaining packets to be send/forwarded */
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{
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struct list_head list;
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uint32_t send_time;
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uint8_t own;
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unsigned char *pack_buff;
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int32_t pack_buff_len;
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struct batman_if *if_outgoing;
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};
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struct gw_node
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{
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struct list_head list;
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struct orig_node *orig_node;
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uint16_t unavail_factor;
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uint32_t last_failure;
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uint32_t deleted;
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};
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struct batman_if
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{
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struct list_head list;
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char *dev;
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int32_t udp_send_sock;
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int32_t udp_recv_sock;
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int32_t tcp_gw_sock;
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int32_t tunnel_sock;
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int16_t if_num;
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uint8_t if_rp_filter_old;
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uint8_t if_send_redirects_old;
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pthread_t listen_thread_id;
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struct sockaddr_in addr;
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struct sockaddr_in broad;
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struct packet out;
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struct list_head client_list;
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};
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struct gw_client
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{
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struct list_head list;
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struct batman_if *batman_if;
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int32_t sock;
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uint32_t last_keep_alive;
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struct sockaddr_in addr;
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};
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struct vis_if {
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int32_t sock;
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struct sockaddr_in addr;
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};
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struct unix_if {
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int32_t unix_sock;
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pthread_t listen_thread_id;
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struct sockaddr_un addr;
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struct list_head client_list;
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};
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struct unix_client {
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struct list_head list;
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int32_t sock;
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uint8_t debug_level;
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};
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struct debug_clients {
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void *fd_list[4];
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int16_t clients_num[4];
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pthread_mutex_t *mutex[4];
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};
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struct debug_level_info {
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struct list_head list;
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int32_t fd;
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};
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struct curr_gw_data {
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unsigned int orig;
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struct gw_node *gw_node;
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struct batman_if *batman_if;
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};
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int8_t batman( void );
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void usage( void );
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void verbose_usage( void );
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void update_routes( struct orig_node *orig_node, struct neigh_node *neigh_node, unsigned char *hna_recv_buff, int16_t hna_buff_len );
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void update_gw_list( struct orig_node *orig_node, uint8_t new_gwflags );
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void choose_gw();
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#endif
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