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#include <sys/socket.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <net/route.h>
#include <sys/ioctl.h>
#include "inet.h"
int configureNetDevice(struct intfInfo * intf) {
struct ifreq req;
int s;
struct sockaddr_in addr;
struct in_addr ia;
char ip[20], nm[20], nw[20], bc[20];
#if 0 /* 2.0 kernels only */
struct rtentry route;
#endif
addr.sin_family = AF_INET;
addr.sin_port = 0;
memcpy(&ia, &intf->ip, sizeof(intf->ip));
strcpy(ip, inet_ntoa(ia));
memcpy(&ia, &intf->netmask, sizeof(intf->netmask));
strcpy(nm, inet_ntoa(ia));
memcpy(&ia, &intf->broadcast, sizeof(intf->broadcast));
strcpy(bc, inet_ntoa(ia));
memcpy(&ia, &intf->network, sizeof(intf->network));
strcpy(nw, inet_ntoa(ia));
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s < 0) {
perror("socket");
return 1;
}
strcpy(req.ifr_name, intf->device);
req.ifr_flags &= ~(IFF_UP | IFF_RUNNING); /* Take down iface */
if (ioctl(s, SIOCSIFFLAGS, &req)) {
perror("SIOCSIFFLAGS");
close(s);
return 1;
}
addr.sin_port = 0;
memcpy(&addr.sin_addr, &intf->ip, sizeof(intf->ip));
memcpy(&req.ifr_addr, &addr, sizeof(addr));
if (ioctl(s, SIOCSIFADDR, &req)) {
perror("SIOCSIFADDR");
close(s);
return 1;
}
memcpy(&addr.sin_addr, &intf->broadcast, sizeof(intf->broadcast));
memcpy(&req.ifr_broadaddr, &addr, sizeof(addr));
if (ioctl(s, SIOCSIFBRDADDR, &req)) {
perror("SIOCSIFNETMASK");
close(s);
return 1;
}
memcpy(&addr.sin_addr, &intf->netmask, sizeof(intf->netmask));
memcpy(&req.ifr_netmask, &addr, sizeof(addr));
if (ioctl(s, SIOCSIFNETMASK, &req)) {
perror("SIOCSIFNETMASK\n");
close(s);
return 1;
}
if (intf->isPtp)
req.ifr_flags = IFF_UP | IFF_RUNNING | IFF_POINTOPOINT | IFF_NOARP;
else
req.ifr_flags = IFF_UP | IFF_RUNNING | IFF_BROADCAST;
if (ioctl(s, SIOCSIFFLAGS, &req)) {
perror("SIOCSIFFLAGS");
close(s);
return 1;
}
#if 0 /* kernel 2.0 only */
memset(&route, 0, sizeof(route));
route.rt_dev = intf->device;
route.rt_flags = RTF_UP;
memcpy(&addr.sin_addr, &intf->network, sizeof(intf->netmask));
memcpy(&route.rt_dst, &addr, sizeof(addr));
memcpy(&addr.sin_addr, &intf->netmask, sizeof(intf->netmask));
memcpy(&route.rt_genmask, &addr, sizeof(addr));
if (ioctl(s, SIOCADDRT, &route)) {
perror("SIOCADDRT");
close(s);
return 1;
}
#endif
intf->isUp = 1;
return 0;
}
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