static void maybe_up_new_iface(void)
{
if (!(option_mask32 & FLAG_NO_AUTO))
up_iface();
#if 0 /* bloat */
struct ifreq ifrequest;
struct ethtool_drvinfo driver_info;
set_ifreq_to_ifname(&ifrequest);
driver_info.cmd = ETHTOOL_GDRVINFO;
ifrequest.ifr_data = &driver_info;
if (network_ioctl(SIOCETHTOOL, &ifrequest, NULL) == 0) {
char buf[sizeof("/xx:xx:xx:xx:xx:xx")];
/* Get MAC */
buf[0] = '\0';
set_ifreq_to_ifname(&ifrequest);
if (network_ioctl(SIOCGIFHWADDR, &ifrequest, NULL) == 0) {
sprintf(buf, "/%02X:%02X:%02X:%02X:%02X:%02X",
(uint8_t)(ifrequest.ifr_hwaddr.sa_data[0]),
(uint8_t)(ifrequest.ifr_hwaddr.sa_data[1]),
(uint8_t)(ifrequest.ifr_hwaddr.sa_data[2]),
(uint8_t)(ifrequest.ifr_hwaddr.sa_data[3]),
(uint8_t)(ifrequest.ifr_hwaddr.sa_data[4]),
(uint8_t)(ifrequest.ifr_hwaddr.sa_data[5]));
}
bb_error_msg("using interface %s%s with driver<%s> (version: %s)",
G.iface, buf, driver_info.driver, driver_info.version);
}
#endif
if (G.api_mode[0] == 'a')
G.api_method_num = API_AUTO;
}
static smallint detect_link(void)
{
smallint status;
if (!G.iface_exists)
return (option_mask32 & FLAG_MONITOR) ? IFSTATUS_DOWN : IFSTATUS_ERR;
/* Some drivers can't detect link status when the interface is down.
* I imagine detect_link_iff() is the most vulnerable.
* That's why -a "noauto" in an option, not a hardwired behavior.
*/
if (!(option_mask32 & FLAG_NO_AUTO))
up_iface();
if (G.api_method_num == API_AUTO) {
int i;
smallint sv_logmode;
sv_logmode = logmode;
for (i = 0; i < ARRAY_SIZE(method_table); i++) {
logmode = LOGMODE_NONE;
status = method_table[i].func();
logmode = sv_logmode;
if (status != IFSTATUS_ERR) {
G.api_method_num = i;
bb_error_msg("using %s detection mode", method_table[i].name);
break;
}
}
} else {
status = method_table[G.api_method_num].func();
}
if (status == IFSTATUS_ERR) {
if (option_mask32 & FLAG_IGNORE_FAIL)
status = IFSTATUS_DOWN;
else if (option_mask32 & FLAG_IGNORE_FAIL_POSITIVE)
status = IFSTATUS_UP;
else if (G.api_mode[0] == 'a')
bb_error_msg("can't detect link status");
}
if (status != G.iface_last_status) {
G.iface_prev_status = G.iface_last_status;
G.iface_last_status = status;
}
return status;
}
static smallint detect_link(void)
{
smallint status;
if (!G.iface_exists)
return (option_mask32 & FLAG_MONITOR) ? IFSTATUS_DOWN : IFSTATUS_ERR;
/* Some drivers can't detect link status when the interface is down.
* I imagine detect_link_iff() is the most vulnerable.
* That's why -a "noauto" in an option, not a hardwired behavior.
*/
if (!(option_mask32 & FLAG_NO_AUTO))
up_iface();
status = G.detect_link_func();
if (status == IFSTATUS_ERR) {
if (option_mask32 & FLAG_IGNORE_FAIL)
status = IFSTATUS_DOWN;
if (option_mask32 & FLAG_IGNORE_FAIL_POSITIVE)
status = IFSTATUS_UP;
}
if (status == IFSTATUS_ERR
&& G.detect_link_func == detect_link_auto
) {
bb_error_msg("failed to detect link status");
}
if (status != G.iface_last_status) {
//TODO: is it safe to repeatedly do this?
setenv(IFPLUGD_ENV_PREVIOUS, strstatus(G.iface_last_status), 1);
setenv(IFPLUGD_ENV_CURRENT, strstatus(status), 1);
G.iface_last_status = status;
}
return status;
}
