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/*
* MacGated - User Space interface to Appletalk-IP decapsulation.
* - Node IP registration and routing daemon.
* Written By: Jay Schulist <Jay.Schulist@spacs.k12.wi.us>
* Copyright (C) 1997-1998 Jay Schulist
*
* Device service routines called by MacGated
*
* This software may be used and distributed according to the terms
* of the GNU Public License, incorporated herein by reference.
*/
#include <unistd.h>
#include <stdio.h>
#include <strings.h>
#include <stdlib.h>
#include <syslog.h>
#include <signal.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/if.h>
#include <linux/atalk.h>
#include <linux/route.h>
extern int socket __P ((int __domain, int __type, int __protocol));
#include "MacGate.h"
/* Get the IP of a device */
unsigned long DeviceGetIP(char *device)
{
struct sockaddr_in *s_in;
struct ifreq ifr;
int SockFD = socket(AF_INET, SOCK_DGRAM, 0);
strcpy(ifr.ifr_name, device);
if(ioctl(SockFD, SIOCGIFADDR, &ifr) < 0)
perror("SIOCGIFADDR");
s_in = (struct sockaddr_in *)&ifr.ifr_addr;
return(s_in->sin_addr.s_addr);
}
#include <linux/errno.h>
/* Add route to IPDDP device */
int DeviceAddIpddpRoute(unsigned long ipaddr, struct at_addr at)
{
struct ipddp_route rt;
struct ifreq ifr;
int err;
int SockFD = socket(AF_INET,SOCK_DGRAM,0);
/* Copy routes information into ifr */
strcpy(ifr.ifr_name, IPDDP);
ifr.ifr_data = (void *)&rt;
rt.ip = ipaddr;
rt.at.s_net = at.s_net;
rt.at.s_node = at.s_node;
if((err = ioctl(SockFD, SIOCADDIPDDPRT, &ifr)) < 0)
{
syslog(LOG_ERR, "Failed (%d) to add route %d:%d to %s on %s",
err,htons(at.s_net), at.s_node, in_ntoa(ipaddr), IPDDP);
return -1;
}
return 0;
}
/* Delete route to IPDDP device */
int DeviceDelIpddpRoute(struct at_addr at, unsigned long ipaddr)
{
struct ipddp_route rt;
struct ifreq ifr;
int SockFD = socket(AF_INET,SOCK_DGRAM,0);
/* Copy routes information into ifr */
strcpy(ifr.ifr_name, IPDDP);
ifr.ifr_data = (void *)&rt;
rt.ip = ipaddr;
rt.at.s_net = at.s_net;
rt.at.s_node = at.s_node;
if(ioctl(SockFD, SIOCDELIPDDPRT, &ifr) < 0)
{
syslog(LOG_ERR, "Failed to delete route %d:%d to %s on %s",
htons(at.s_net), at.s_node, in_ntoa(ipaddr), IPDDP);
return -1;
}
return 0;
}
int DeviceAddRoute(unsigned long ipaddr, char *dev)
{
struct rtentry rt;
int SockFD;
if((SockFD = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
syslog(LOG_ERR, "socket() failed");
return -1;
}
memset (&rt, '\0', sizeof (rt));
rt.rt_flags = (RTF_UP | RTF_HOST);
rt.rt_dst.sa_family = AF_INET;
((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = ipaddr;
rt.rt_dev = dev;
if(ioctl(SockFD, SIOCADDRT, &rt) < 0)
{
syslog(LOG_ERR, "Failed to add route %s to %s (SIOCADDRT)",
in_ntoa(ipaddr), IPDDP);
return -1;
}
return 0;
}
int DeviceDelRoute(unsigned long ipaddr, char *dev)
{
struct rtentry rt;
int SockFD;
if((SockFD = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
syslog(LOG_ERR, "socket() failed");
return -1;
}
memset (&rt, '\0', sizeof (rt));
rt.rt_flags = (RTF_UP | RTF_HOST);
rt.rt_dst.sa_family = AF_INET;
((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = ipaddr;
rt.rt_dev = dev;
if(ioctl(SockFD, SIOCDELRT, &rt) < 0)
{
syslog(LOG_ERR, "Failed to del route %s to %s (SIOCDELRT)",
in_ntoa(ipaddr), IPDDP);
return -1;
}
return 0;
}
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