nl80211: Add support for TDLS request event from the driver

The NL80211_CMD_TDLS_OPER command can be used as an event based on a
recent cfg80211 commit, so add code to map that to internal
wpa_supplicant event to request TDLS link setup/teardown.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 7376cd8..8ee8482 100644 (file)
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -2113,6 +2113,43 @@ static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
 }
 
 
+static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv,
+                                   struct nlattr **tb)
+{
+       union wpa_event_data data;
+
+       wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event");
+
+       if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION])
+               return;
+
+       os_memset(&data, 0, sizeof(data));
+       os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
+       switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) {
+       case NL80211_TDLS_SETUP:
+               wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer "
+                          MACSTR, MAC2STR(data.tdls.peer));
+               data.tdls.oper = TDLS_REQUEST_SETUP;
+               break;
+       case NL80211_TDLS_TEARDOWN:
+               wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer "
+                          MACSTR, MAC2STR(data.tdls.peer));
+               data.tdls.oper = TDLS_REQUEST_TEARDOWN;
+               break;
+       default:
+               wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
+                          "event");
+               return;
+       }
+       if (tb[NL80211_ATTR_REASON_CODE]) {
+               data.tdls.reason_code =
+                       nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
+       }
+
+       wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data);
+}
+
+
 static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
                                   int wds)
 {
@@ -2245,6 +2282,9 @@ static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
        case NL80211_CMD_PROBE_CLIENT:
                nl80211_client_probe_event(drv, tb);
                break;
+       case NL80211_CMD_TDLS_OPER:
+               nl80211_tdls_oper_event(drv, tb);
+               break;
        default:
                wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
                           "(cmd=%d)", cmd);