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/* parprouted: ProxyARP routing daemon.
* (C) 2004 Vladimir Ivaschenko <vi@maks.net>
*
* This application is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License.
*
* This software 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#define PROC_ARP "/proc/net/arp"
#define ARP_LINE_LEN 255
#define ARP_TABLE_ENTRY_LEN 20
#define ARP_TABLE_ENTRY_TIMEOUT 60 /* seconds */
#define ROUTE_CMD_LEN 255
#define SLEEPTIME 1000000 /* ms */
#define REFRESHTIME 50 /* seconds */
#define MAX_IFACES 10
#define MAX_RQ_SIZE 50 /* maximum size of request queue */
#define VERSION "0.63"
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <syslog.h>
#include <sys/wait.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>
#include <assert.h>
#include <libgen.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
typedef struct arptab_entry {
struct in_addr ipaddr_ia;
char hwaddr[ARP_TABLE_ENTRY_LEN];
char ifname[ARP_TABLE_ENTRY_LEN];
time_t tstamp;
int route_added;
int incomplete;
struct arptab_entry *next;
} ARPTAB_ENTRY;
extern int debug;
extern int option_arpperm;
extern ARPTAB_ENTRY **arptab;
extern pthread_mutex_t arptab_mutex;
extern pthread_mutex_t req_queue_mutex;
extern char * ifaces[MAX_IFACES];
extern int last_iface_idx;
extern void *arp(char *ifname);
extern void refresharp(ARPTAB_ENTRY *list);
extern void arp_req(char *ifname, struct in_addr remaddr);
extern void parseproc();
extern void processarp(int cleanup);
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