/*
- * WPA Supplicant - driver interaction with generic Linux Wireless Extensions
- * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
+ * Driver interaction with generic Linux Wireless Extensions
+ * Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include "includes.h"
#include <sys/ioctl.h>
+#include <sys/stat.h>
#include <net/if_arp.h>
#include "wireless_copy.h"
#include "priv_netlink.h"
#include "netlink.h"
#include "linux_ioctl.h"
+#include "rfkill.h"
#include "driver.h"
#include "driver_wext.h"
(ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
(ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
(ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
+
+ if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
+ wpa_printf(MSG_DEBUG, "WEXT: Interface down");
+ drv->if_disabled = 1;
+ wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL);
+ }
+
+ if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
+ wpa_printf(MSG_DEBUG, "WEXT: Interface up");
+ drv->if_disabled = 0;
+ wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
+ }
+
/*
* Some drivers send the association event before the operup event--in
* this case, lifting operstate in wpa_driver_wext_set_operstate()
}
+static void wpa_driver_wext_rfkill_blocked(void *ctx)
+{
+ wpa_printf(MSG_DEBUG, "WEXT: RFKILL blocked");
+ /*
+ * This may be for any interface; use ifdown event to disable
+ * interface.
+ */
+}
+
+
+static void wpa_driver_wext_rfkill_unblocked(void *ctx)
+{
+ struct wpa_driver_wext_data *drv = ctx;
+ wpa_printf(MSG_DEBUG, "WEXT: RFKILL unblocked");
+ if (linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 1)) {
+ wpa_printf(MSG_DEBUG, "WEXT: Could not set interface UP "
+ "after rfkill unblock");
+ return;
+ }
+ /* rtnetlink ifup handler will report interface as enabled */
+}
+
+
/**
* wpa_driver_wext_init - Initialize WE driver interface
* @ctx: context to be used when calling wpa_supplicant functions,
{
struct wpa_driver_wext_data *drv;
struct netlink_config *cfg;
+ struct rfkill_config *rcfg;
+ char path[128];
+ struct stat buf;
drv = os_zalloc(sizeof(*drv));
if (drv == NULL)
drv->ctx = ctx;
os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
+ os_snprintf(path, sizeof(path), "/sys/class/net/%s/phy80211", ifname);
+ if (stat(path, &buf) == 0) {
+ wpa_printf(MSG_DEBUG, "WEXT: cfg80211-based driver detected");
+ drv->cfg80211 = 1;
+ }
+
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->ioctl_sock < 0) {
perror("socket(PF_INET,SOCK_DGRAM)");
goto err2;
}
+ rcfg = os_zalloc(sizeof(*rcfg));
+ if (rcfg == NULL)
+ goto err3;
+ rcfg->ctx = drv;
+ os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
+ rcfg->blocked_cb = wpa_driver_wext_rfkill_blocked;
+ rcfg->unblocked_cb = wpa_driver_wext_rfkill_unblocked;
+ drv->rfkill = rfkill_init(rcfg);
+ if (drv->rfkill == NULL) {
+ wpa_printf(MSG_DEBUG, "WEXT: RFKILL status not available");
+ os_free(rcfg);
+ }
+
drv->mlme_sock = -1;
if (wpa_driver_wext_finish_drv_init(drv) < 0)
return drv;
err3:
+ rfkill_deinit(drv->rfkill);
netlink_deinit(drv->netlink);
err2:
close(drv->ioctl_sock);
}
+static void wpa_driver_wext_send_rfkill(void *eloop_ctx, void *timeout_ctx)
+{
+ wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
+}
+
+
static int wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv)
{
- if (linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 1) < 0)
- return -1;
+ int send_rfkill_event = 0;
+
+ if (linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 1) < 0) {
+ if (rfkill_is_blocked(drv->rfkill)) {
+ wpa_printf(MSG_DEBUG, "WEXT: Could not yet enable "
+ "interface '%s' due to rfkill",
+ drv->ifname);
+ drv->if_disabled = 1;
+ send_rfkill_event = 1;
+ } else {
+ wpa_printf(MSG_ERROR, "WEXT: Could not set "
+ "interface '%s' UP", drv->ifname);
+ return -1;
+ }
+ }
/*
* Make sure that the driver does not have any obsolete PMKID entries.
netlink_send_oper_ifla(drv->netlink, drv->ifindex,
1, IF_OPER_DORMANT);
+ if (send_rfkill_event) {
+ eloop_register_timeout(0, 0, wpa_driver_wext_send_rfkill,
+ drv, drv->ctx);
+ }
+
return 0;
}
netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
netlink_deinit(drv->netlink);
+ rfkill_deinit(drv->rfkill);
if (drv->mlme_sock >= 0)
eloop_unregister_read_sock(drv->mlme_sock);
}
-static void wext_get_scan_qual(struct iw_event *iwe,
+static void wext_get_scan_qual(struct wpa_driver_wext_data *drv,
+ struct iw_event *iwe,
struct wext_scan_data *res)
{
res->res.qual = iwe->u.qual.qual;
res->res.flags |= WPA_SCAN_NOISE_INVALID;
if (iwe->u.qual.updated & IW_QUAL_DBM)
res->res.flags |= WPA_SCAN_LEVEL_DBM;
+ if ((iwe->u.qual.updated & IW_QUAL_DBM) ||
+ ((iwe->u.qual.level != 0) &&
+ (iwe->u.qual.level > drv->max_level))) {
+ if (iwe->u.qual.level >= 64)
+ res->res.level -= 0x100;
+ if (iwe->u.qual.noise >= 64)
+ res->res.noise -= 0x100;
+ }
}
tmp = os_realloc(res->ie, res->ie_len + bytes);
if (tmp == NULL)
return;
- hexstr2bin(spos, tmp + res->ie_len, bytes);
res->ie = tmp;
+ if (hexstr2bin(spos, tmp + res->ie_len, bytes) < 0)
+ return;
res->ie_len += bytes;
} else if (clen > 7 && os_strncmp(custom, "rsn_ie=", 7) == 0) {
char *spos;
tmp = os_realloc(res->ie, res->ie_len + bytes);
if (tmp == NULL)
return;
- hexstr2bin(spos, tmp + res->ie_len, bytes);
res->ie = tmp;
+ if (hexstr2bin(spos, tmp + res->ie_len, bytes) < 0)
+ return;
res->ie_len += bytes;
} else if (clen > 4 && os_strncmp(custom, "tsf=", 4) == 0) {
char *spos;
return;
}
bytes /= 2;
- hexstr2bin(spos, bin, bytes);
+ if (hexstr2bin(spos, bin, bytes) < 0) {
+ wpa_printf(MSG_DEBUG, "WEXT: Invalid TSF value");
+ return;
+ }
res->res.tsf += WPA_GET_BE64(bin);
}
}
wext_get_scan_freq(iwe, &data);
break;
case IWEVQUAL:
- wext_get_scan_qual(iwe, &data);
+ wext_get_scan_qual(drv, iwe, &data);
break;
case SIOCGIWENCODE:
wext_get_scan_encode(iwe, &data);
"assuming WPA is not supported");
}
+ drv->max_level = range->max_qual.level;
+
os_free(range);
return 0;
}
}
if (iwr.u.mode == IW_MODE_INFRA) {
+ if (drv->cfg80211) {
+ /*
+ * cfg80211 supports SIOCSIWMLME commands, so there is
+ * no need for the random SSID hack, but clear the
+ * BSSID and SSID.
+ */
+ if (wpa_driver_wext_set_bssid(drv, null_bssid) < 0 ||
+ wpa_driver_wext_set_ssid(drv, (u8 *) "", 0) < 0) {
+ wpa_printf(MSG_DEBUG, "WEXT: Failed to clear "
+ "to disconnect");
+ }
+ return;
+ }
/*
* Clear the BSSID selection and set a random SSID to make sure
* the driver will not be trying to associate with something
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
+ if (drv->cfg80211) {
+ /*
+ * Stop cfg80211 from trying to associate before we are done
+ * with all parameters.
+ */
+ wpa_driver_wext_set_ssid(drv, (u8 *) "", 0);
+ }
+
if (wpa_driver_wext_set_drop_unencrypted(drv, params->drop_unencrypted)
< 0)
ret = -1;
#endif /* CONFIG_IEEE80211W */
if (params->freq && wpa_driver_wext_set_freq(drv, params->freq) < 0)
ret = -1;
- if (wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)
+ if (!drv->cfg80211 &&
+ wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)
ret = -1;
if (params->bssid &&
wpa_driver_wext_set_bssid(drv, params->bssid) < 0)
ret = -1;
+ if (drv->cfg80211 &&
+ wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)
+ ret = -1;
return ret;
}
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