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/*
* Copyright (c) 1996 Joerg Reuter (jreuter@poboxes.com)
*
* This program is free software; you can redistribute it 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 program 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/* Defines for defaults */
#define IP_MAXROUTES 4096
#define AX25_MAXROUTES 4096
#define AX25_MAXCALLS 32
/* Some AX.25 stuff */
#define NEW_ARP 1
#define NEW_ROUTE 2
#define NEW_IPMODE 4
#define SEG_FIRST 0x80
#define SEG_REM 0x7F
#define PID_SEGMENT 0x08
#define PID_ARP 0xCD
#define PID_IP 0xCC
#define PID_NETROM 0xCF
#define HDLCAEB 0x01
#define SSSID_SPARE 0x40
#define AX25_REPEATED 0x80
#define LAPB_I 0x00
#define LAPB_S 0x01
#define LAPB_UI 0x03
#define LAPB_PF 0x10
#define ALEN 6
#define AXLEN 7
#define IPLEN 20
/* structs for the caches */
typedef struct ip_rt_entry_ {
struct ip_rt_entry_ *next, *prev;
unsigned long ip;
char iface[14];
ax25_address call;
char ipmode;
time_t timestamp;
char invalid;
} ip_rt_entry;
typedef struct ax25_rt_entry_ {
struct ax25_rt_entry_ *next, *prev;
char iface[14];
ax25_address call;
ax25_address digipeater[AX25_MAX_DIGIS];
int ndigi;
long cnt;
time_t timestamp;
} ax25_rt_entry;
/* struct for the channel configuration */
typedef struct config_ {
struct config_ *next;
char port[128];
char dev[14];
char ax25_add_route;
char ax25_for_me;
char ax25_add_default;
char ip_add_route;
char ip_add_arp;
char ip_adjust_mode;
char ip_arp_use_netlink;
unsigned int dg_mtu;
unsigned int vc_mtu;
unsigned long tcp_irtt;
unsigned long netmask;
unsigned long ip;
int nmycalls;
ax25_address mycalls[AX25_MAXCALLS];
struct full_sockaddr_ax25 ax25_default_path;
} config;
/* global variables */
extern int reload;
extern config *Config;
extern ip_rt_entry * ip_routes;
extern int ip_routes_cnt;
extern int ip_maxroutes;
extern ax25_rt_entry * ax25_routes;
extern int ax25_routes_cnt;
extern int ax25_maxroutes;
extern char ip_encaps_dev[];
extern char iproute2_table[];
/* config.c */
void load_config(void);
void reload_config(void);
void load_cache(void);
void save_cache(void);
void interpret_command(int fd, char *buf);
/* listener.c */
int call_is_mycall(config *config, ax25_address *call);
int set_arp(config *config, long ip, ax25_address *call);
int set_route(config *config, long ip);
int set_ax25_route(config *config, ax25_rt_entry *rt);
int set_ipmode(config *config, ax25_address *call, int ipmode);
int del_kernel_ip_route(char *dev, long ip);
int del_kernel_ax25_route(char *dev, ax25_address *call);
void ax25_receive(int sock);
/* ax25rtd.c */
void daemon_shutdown(int reason);
int set_ipmode(config *config, ax25_address *call, int ipmode);
config * dev_get_config(char *dev);
config * port_get_config(char *port);
/* cache_dump.c */
void dump_ip_routes(int fd, int cmd);
void dump_ax25_routes(int fd, int cmd);
void dump_config(int fd);
/* cache_ctl.c */
int update_ip_route(config *config, unsigned long ip, int ipmode, ax25_address *call, time_t timestamp);
ax25_rt_entry * update_ax25_route(config *config, ax25_address *call, int ndigi, ax25_address *digi, time_t timestamp);
int del_ip_route(unsigned long ip);
int invalidate_ip_route(unsigned long ip);
int del_ax25_route(config * config, ax25_address *call);
void expire_ax25_route(time_t when);
void expire_ip_route(time_t when);
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