#define MAX_TFS_IE_LEN 1024
-#ifdef CONFIG_IEEE80211V
/* get the TFS IE from driver */
static int ieee80211_11_get_tfs_ie(struct hostapd_data *hapd, const u8 *addr,
u16 wnmtfs_ie_len;
u8 *pos;
struct sta_info *sta;
- enum wnm_oper tfs_oper = action_type == 0 ? WNM_SLEEP_TFS_RESP_IE_ADD :
- WNM_SLEEP_TFS_RESP_IE_NONE;
+ enum wnm_oper tfs_oper = action_type == WNM_SLEEP_MODE_ENTER ?
+ WNM_SLEEP_TFS_RESP_IE_ADD : WNM_SLEEP_TFS_RESP_IE_NONE;
sta = ap_get_sta(hapd, addr);
if (sta == NULL) {
mgmt->u.action.u.wnm_sleep_resp.dialogtoken = dialog_token;
pos = (u8 *)mgmt->u.action.u.wnm_sleep_resp.variable;
/* add key data if MFP is enabled */
- if (wpa_auth_uses_mfp(sta->wpa_sm) || action_type != 1){
+ if (!wpa_auth_uses_mfp(sta->wpa_sm) ||
+ action_type != WNM_SLEEP_MODE_EXIT) {
mgmt->u.action.u.wnm_sleep_resp.keydata_len = 0;
} else {
gtk_elem_len = wpa_wnmsleep_gtk_subelem(sta->wpa_sm, pos);
os_memcpy(pos, &wnmsleep_ie, wnmsleep_ie_len);
/* copy TFS IE here */
pos += wnmsleep_ie_len;
- os_memcpy(pos, wnmtfs_ie, wnmtfs_ie_len);
+ if (wnmtfs_ie)
+ os_memcpy(pos, wnmtfs_ie, wnmtfs_ie_len);
len = 1 + sizeof(mgmt->u.action.u.wnm_sleep_resp) + gtk_elem_len +
igtk_elem_len + wnmsleep_ie_len + wnmtfs_ie_len;
* WNM Sleep
*/
if (wnmsleep_ie.status == WNM_STATUS_SLEEP_ACCEPT &&
- wnmsleep_ie.action_type == 0) {
+ wnmsleep_ie.action_type == WNM_SLEEP_MODE_ENTER) {
hostapd_drv_wnm_oper(hapd, WNM_SLEEP_ENTER_CONFIRM,
addr, NULL, NULL);
wpa_set_wnmsleep(sta->wpa_sm, 1);
* 2. start GTK/IGTK update if MFP is not used
* 3. unpause the node in driver
*/
- if (wnmsleep_ie.status == WNM_STATUS_SLEEP_ACCEPT &&
- wnmsleep_ie.action_type == 1) {
+ if ((wnmsleep_ie.status == WNM_STATUS_SLEEP_ACCEPT ||
+ wnmsleep_ie.status ==
+ WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) &&
+ wnmsleep_ie.action_type == WNM_SLEEP_MODE_EXIT) {
wpa_set_wnmsleep(sta->wpa_sm, 0);
hostapd_drv_wnm_oper(hapd, WNM_SLEEP_EXIT_CONFIRM,
addr, NULL, NULL);
- if (wpa_auth_uses_mfp(sta->wpa_sm) && action_type == 1)
+ if (!wpa_auth_uses_mfp(sta->wpa_sm))
wpa_wnmsleep_rekey_gtk(sta->wpa_sm);
}
} else
static void ieee802_11_rx_wnmsleep_req(struct hostapd_data *hapd,
const u8 *addr, const u8 *frm, int len)
{
- /*
- * Action [1] | Dialog Token [1] | WNM-Sleep Mode IE |
- * TFS Response IE
- */
- u8 *pos = (u8 *) frm; /* point to action field */
- u8 dialog_token = pos[1];
+ /* Dialog Token [1] | WNM-Sleep Mode IE | TFS Response IE */
+ const u8 *pos = frm;
+ u8 dialog_token;
struct wnm_sleep_element *wnmsleep_ie = NULL;
/* multiple TFS Req IE (assuming consecutive) */
u8 *tfsreq_ie_start = NULL;
u8 *tfsreq_ie_end = NULL;
u16 tfsreq_ie_len = 0;
- pos += 1 + 1;
- while (pos - frm < len - 1) {
- u8 ie_len = *(pos+1);
+ dialog_token = *pos++;
+ while (pos + 1 < frm + len) {
+ u8 ie_len = pos[1];
+ if (pos + 2 + ie_len > frm + len)
+ break;
if (*pos == WLAN_EID_WNMSLEEP)
- wnmsleep_ie = (struct wnm_sleep_element *)pos;
+ wnmsleep_ie = (struct wnm_sleep_element *) pos;
else if (*pos == WLAN_EID_TFS_REQ) {
if (!tfsreq_ie_start)
- tfsreq_ie_start = pos;
- tfsreq_ie_end = pos;
+ tfsreq_ie_start = (u8 *) pos;
+ tfsreq_ie_end = (u8 *) pos;
} else
- wpa_printf(MSG_DEBUG, "EID %d not recognized", *pos);
+ wpa_printf(MSG_DEBUG, "WNM: EID %d not recognized",
+ *pos);
pos += ie_len + 2;
}
return;
}
- if (wnmsleep_ie->action_type == 0 && tfsreq_ie_start &&
- tfsreq_ie_end && tfsreq_ie_end - tfsreq_ie_start >= 0) {
+ if (wnmsleep_ie->action_type == WNM_SLEEP_MODE_ENTER &&
+ tfsreq_ie_start && tfsreq_ie_end &&
+ tfsreq_ie_end - tfsreq_ie_start >= 0) {
tfsreq_ie_len = (tfsreq_ie_end + tfsreq_ie_end[1] + 2) -
tfsreq_ie_start;
wpa_printf(MSG_DEBUG, "TFS Req IE(s) found");
wnmsleep_ie->action_type,
wnmsleep_ie->intval);
- if (wnmsleep_ie->action_type == 1) {
+ if (wnmsleep_ie->action_type == WNM_SLEEP_MODE_EXIT) {
/* clear the tfs after sending the resp frame */
ieee80211_11_set_tfs_ie(hapd, addr, tfsreq_ie_start,
&tfsreq_ie_len, WNM_SLEEP_TFS_IE_DEL);
}
-void ieee802_11_rx_wnm_action_ap(struct hostapd_data *hapd,
- struct rx_action *action)
+int ieee802_11_rx_wnm_action_ap(struct hostapd_data *hapd,
+ struct rx_action *action)
{
- u8 *pos = (u8 *) action->data + 1; /* point to the action field */
- u8 act = *pos;
+ if (action->len < 1 || action->data == NULL)
+ return -1;
- switch (act) {
+ switch (action->data[0]) {
+ case WNM_BSS_TRANS_MGMT_QUERY:
+ wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management Query");
+ /* TODO */
+ return -1;
+ case WNM_BSS_TRANS_MGMT_RESP:
+ wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
+ "Response");
+ /* TODO */
+ return -1;
case WNM_SLEEP_MODE_REQ:
ieee802_11_rx_wnmsleep_req(hapd, action->sa, action->data + 1,
- action->len);
- break;
- default:
- break;
+ action->len - 1);
+ return 0;
}
-}
-#endif /* CONFIG_IEEE80211V */
+ wpa_printf(MSG_DEBUG, "WNM: Unsupported WNM Action %u from " MACSTR,
+ action->data[0], MAC2STR(action->sa));
+ return -1;
+}
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