int
if_mii_probe(const char *ifname)
{
uint16_t *data = (uint16_t *) (&ifr.ifr_data);
int phy_id;
int fd = socket(AF_INET, SOCK_DGRAM, 0);
int status = 0;
if (fd < 0)
return -1;
memset(&ifr, 0, sizeof (struct ifreq));
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
if (ioctl(fd, SIOCGMIIPHY, &ifr) < 0) {
close(fd);
return -1;
}
/* check if the driver reports BMSR using the MII interface, as we
* will need this and we already know that some don't support it.
*/
phy_id = data[0]; /* save it in case it is overwritten */
data[1] = 1;
if (ioctl(fd, SIOCGMIIREG, &ifr) < 0) {
close(fd);
return -1;
}
data[0] = phy_id;
/* Dump the MII transceiver */
status = if_mii_status(fd);
close(fd);
return status;
}
static int
if_mii_probe(const char *ifname)
{
uint16_t *data = (uint16_t *) (&ifr.ifr_data);
int phy_id;
int fd = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
int status = 0;
if (fd < 0)
return -1;
#ifndef _HAVE_SOCK_CLOEXEC_
if (set_sock_flags(fd, F_SETFD, FD_CLOEXEC))
log_message(LOG_INFO, "Unable to set CLOEXEC on mii_probe socket - %s (%d)", strerror(errno), errno);
#endif
memset(&ifr, 0, sizeof (struct ifreq));
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
if (ioctl(fd, SIOCGMIIPHY, &ifr) < 0) {
close(fd);
return -1;
}
/* check if the driver reports BMSR using the MII interface, as we
* will need this and we already know that some don't support it.
*/
phy_id = data[0]; /* save it in case it is overwritten */
data[1] = 1;
if (ioctl(fd, SIOCGMIIREG, &ifr) < 0) {
close(fd);
return -1;
}
data[0] = phy_id;
/* Dump the MII transceiver */
status = if_mii_status(fd);
close(fd);
return status;
}
