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wext: Add signal_poll callback

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Add a basic implementation of a signal_poll callback for wext drivers.

Signed-off-by: Jean-Marie Lemetayer <jeanmarie.lemetayer@gmail.com>
This commit is contained in:
Jean-Marie Lemetayer 2014-08-08 10:45:00 +02:00 committed by Jouni Malinen
parent af65bc36bb
commit 61157afb1c
1 changed files with 32 additions and 0 deletions
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32
src/drivers/driver_wext.c
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@ -2320,6 +2320,37 @@ static const char * wext_get_radio_name(void *priv)
}
static int wpa_driver_wext_signal_poll(void *priv, struct wpa_signal_info *si)
{
struct wpa_driver_wext_data *drv = priv;
struct iw_statistics stats;
struct iwreq iwr;
os_memset(si, 0, sizeof(*si));
si->current_signal = -9999;
si->current_noise = 9999;
si->chanwidth = CHAN_WIDTH_UNKNOWN;
os_memset(&iwr, 0, sizeof(iwr));
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
iwr.u.data.pointer = (caddr_t) &stats;
iwr.u.data.length = sizeof(stats);
iwr.u.data.flags = 1;
if (ioctl(drv->ioctl_sock, SIOCGIWSTATS, &iwr) < 0) {
wpa_printf(MSG_ERROR, "WEXT: SIOCGIWSTATS: %s",
strerror(errno));
return -1;
}
si->current_signal = stats.qual.level -
((stats.qual.updated & IW_QUAL_DBM) ? 0x100 : 0);
si->current_noise = stats.qual.noise -
((stats.qual.updated & IW_QUAL_DBM) ? 0x100 : 0);
return 0;
}
const struct wpa_driver_ops wpa_driver_wext_ops = {
.name = "wext",
.desc = "Linux wireless extensions (generic)",
@ -2339,4 +2370,5 @@ const struct wpa_driver_ops wpa_driver_wext_ops = {
.get_capa = wpa_driver_wext_get_capa,
.set_operstate = wpa_driver_wext_set_operstate,
.get_radio_name = wext_get_radio_name,
.signal_poll = wpa_driver_wext_signal_poll,
};