int hostapd_ctrl_iface_deauthenticate(struct hostapd_data *hapd,
const char *txtaddr)
{
u8 addr[ETH_ALEN];
struct sta_info *sta;
const char *pos;
u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DEAUTHENTICATE %s",
txtaddr);
if (hwaddr_aton(txtaddr, addr))
return -1;
pos = os_strstr(txtaddr, " test=");
if (pos) {
struct ieee80211_mgmt mgmt;
int encrypt;
if (hapd->driver->send_frame == NULL)
return -1;
pos += 6;
encrypt = atoi(pos);
os_memset(&mgmt, 0, sizeof(mgmt));
mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_DEAUTH);
os_memcpy(mgmt.da, addr, ETH_ALEN);
os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
mgmt.u.deauth.reason_code =
host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
IEEE80211_HDRLEN +
sizeof(mgmt.u.deauth),
encrypt) < 0)
return -1;
return 0;
}
#ifdef CONFIG_P2P_MANAGER
pos = os_strstr(txtaddr, " p2p=");
if (pos) {
return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DEAUTH,
atoi(pos + 5), addr);
}
#endif /* CONFIG_P2P_MANAGER */
pos = os_strstr(txtaddr, " reason=");
if (pos)
reason = atoi(pos + 8);
hostapd_drv_sta_deauth(hapd, addr, reason);
sta = ap_get_sta(hapd, addr);
if (sta)
ap_sta_deauthenticate(hapd, sta, reason);
else if (addr[0] == 0xff)
hostapd_free_stas(hapd);
return 0;
}
int ap_sta_wps_cancel(struct hostapd_data *hapd,
struct sta_info *sta, void *ctx)
{
if (sta && (sta->flags & WLAN_STA_WPS)) {
ap_sta_deauthenticate(hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
__func__, MAC2STR(sta->addr));
return 1;
}
return 0;
}
int ap_ctrl_iface_deauthenticate(struct wpa_supplicant *wpa_s,
const char *txtaddr)
{
u8 addr[ETH_ALEN];
struct sta_info *sta;
if (wpa_s->ap_iface == NULL)
return -1;
wpa_printf(MSG_DEBUG, "CTRL_IFACE DEAUTHENTICATE %s", txtaddr);
if (hwaddr_aton(txtaddr, addr))
return -1;
hostapd_drv_sta_deauth(wpa_s->ap_iface->bss[0], addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
sta = ap_get_sta(wpa_s->ap_iface->bss[0], addr);
if (sta)
ap_sta_deauthenticate(wpa_s->ap_iface->bss[0], sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
return 0;
}
static int hostapd_config_reload_sta(struct hostapd_data *hapd,
struct sta_info *sta, void *data)
{
struct hostapd_config_change *change = data;
struct hostapd_bss_config *newbss, *oldbss;
int deauth = 0;
u8 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
newbss = change->newbss;
oldbss = change->oldbss;
hapd = change->hapd;
if (sta->ssid == &oldbss->ssid) {
sta->ssid = &newbss->ssid;
if (newbss->ssid.ssid_len != oldbss->ssid.ssid_len ||
memcmp(newbss->ssid.ssid, oldbss->ssid.ssid,
newbss->ssid.ssid_len) != 0) {
/* main SSID was changed - kick STA out */
deauth++;
}
}
sta->ssid_probe = sta->ssid;
/*
* If MAC ACL configuration has changed, deauthenticate stations that
* have been removed from accepted list or have been added to denied
* list. If external RADIUS server is used for ACL, all stations are
* deauthenticated and they will need to authenticate again. This
* limits sudden load on the RADIUS server since the verification will
* be done over the time needed for the STAs to reauthenticate
* themselves.
*/
if (change->mac_acl_changed &&
(newbss->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH ||
!hostapd_allowed_address(hapd, sta->addr, NULL, 0, NULL, NULL,
NULL)))
deauth++;
if (newbss->ieee802_1x != oldbss->ieee802_1x &&
sta->ssid == &hapd->conf->ssid)
deauth++;
if (newbss->wpa != oldbss->wpa)
deauth++;
if (!newbss->wme_enabled && (sta->flags & WLAN_STA_WME))
deauth++;
if (newbss->auth_algs != oldbss->auth_algs &&
((sta->auth_alg == WLAN_AUTH_OPEN &&
!(newbss->auth_algs & HOSTAPD_AUTH_OPEN)) ||
(sta->auth_alg == WLAN_AUTH_SHARED_KEY &&
!(newbss->auth_algs & HOSTAPD_AUTH_SHARED_KEY))))
deauth++;
if (change->num_sta_remove > 0) {
deauth++;
reason = WLAN_REASON_DISASSOC_AP_BUSY;
}
if (deauth) {
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "STA " MACSTR
" deauthenticated during config reloading "
"(reason=%d)\n", MAC2STR(sta->addr), reason);
ieee802_11_send_deauth(hapd, sta->addr, reason);
ap_sta_deauthenticate(hapd, sta, reason);
change->num_sta_remove--;
}
return 0;
}
