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wext: don't force-disconnect in ad-hoc mode

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Otherwise the driver might interpret the request as a request to
create/join a new adhoc network with the bogus SSID.

Signed-off-by: Dan Williams <dcbw@redhat.com>
This commit is contained in:
Dan Williams 2009-05-27 20:55:15 +03:00 committed by Jouni Malinen
parent f8e96eb6fd
commit 64a04447c3
1 changed files with 23 additions and 8 deletions
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31
src/drivers/driver_wext.c
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@ -1923,21 +1923,36 @@ static int wpa_driver_wext_mlme(struct wpa_driver_wext_data *drv,
static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv)
{
struct iwreq iwr;
const u8 null_bssid[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
u8 ssid[32];
int i;
/*
* Clear the BSSID selection and set a random SSID to make sure the
* driver will not be trying to associate with something even if it
* does not understand SIOCSIWMLME commands (or tries to associate
* automatically after deauth/disassoc).
* Only force-disconnect when the card is in infrastructure mode,
* otherwise the driver might interpret the cleared BSSID and random
* SSID as an attempt to create a new ad-hoc network.
*/
wpa_driver_wext_set_bssid(drv, null_bssid);
os_memset(&iwr, 0, sizeof(iwr));
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
if (ioctl(drv->ioctl_sock, SIOCGIWMODE, &iwr) < 0) {
perror("ioctl[SIOCGIWMODE]");
iwr.u.mode = IW_MODE_INFRA;
}
for (i = 0; i < 32; i++)
ssid[i] = rand() & 0xFF;
wpa_driver_wext_set_ssid(drv, ssid, 32);
if (iwr.u.mode == IW_MODE_INFRA) {
/*
* Clear the BSSID selection and set a random SSID to make sure
* the driver will not be trying to associate with something
* even if it does not understand SIOCSIWMLME commands (or
* tries to associate automatically after deauth/disassoc).
*/
wpa_driver_wext_set_bssid(drv, null_bssid);
for (i = 0; i < 32; i++)
ssid[i] = rand() & 0xFF;
wpa_driver_wext_set_ssid(drv, ssid, 32);
}
}