static int interface_driver_is(const char* intf_name, const char* driver_name)
{
/* Return true if the net driver that underlies this device is the one
* named. i.e. If the interface is an IP alias or VLAN interface, then
* we look at the underlying interface.
*/
char intf_base_name[IF_NAMESIZE];
interface_get_basename(intf_name, intf_base_name);
return interface_is(intf_base_name, driver_name);
}
static int interface_to_ifindex(const char* intf_name)
{
struct ifreq ifr;
int rc, sock;
interface_get_basename(intf_name, ifr.ifr_name);
CI_TRY(sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP));
rc = ioctl(sock, SIOCGIFINDEX, &ifr);
close(sock);
if( rc == 0 )
return ifr.ifr_ifindex;
else
return rc;
}
static int interface_to_ifindex(const char* intf_name)
{
struct ifreq ifr;
int rc, sock;
interface_get_basename(intf_name, ifr.ifr_name);
if( (sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0 ) {
E(fprintf(stderr, LPF "%s: ERROR: socket() failed (%d, %s)\n",
__FUNCTION__, errno, strerror(errno)));
return sock;
}
rc = ioctl(sock, SIOCGIFINDEX, &ifr);
close(sock);
if( rc == 0 ) {
return ifr.ifr_ifindex;
}
else {
E(fprintf(stderr, LPF "%s: ERROR: ioctl(SIOCGIFINDEX) failed (%d, %s)\n",
__FUNCTION__, errno, strerror(errno)));
return rc;
}
}
