MLD: Return status code for links when rejecting association

When the TX link rejects the association, return a status code for all
requested links. For simplicity, just return "TX link not accepted" so
that clients may try to connect to other links. This could be improved
to explicitly reject each link if directly associating to the link will
not work either.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>

diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c
index 7de12284d96a850da2daef83f9ce32c23871ac41..675ca48a19e8f075d0f080df8f138ef3a1030c62 100644 (file)
--- a/src/ap/ieee802_11.c
+++ b/src/ap/ieee802_11.c
@@ -4500,7 +4500,7 @@ bool hostapd_is_mld_ap(struct hostapd_data *hapd)
 static void hostapd_process_assoc_ml_info(struct hostapd_data *hapd,
                                          struct sta_info *sta,
                                          const u8 *ies, size_t ies_len,
-                                         bool reassoc)
+                                         bool reassoc, int tx_link_status)
 {
 #ifdef CONFIG_IEEE80211BE
        unsigned int i, j;
@@ -4546,6 +4546,14 @@ static void hostapd_process_assoc_ml_info(struct hostapd_data *hapd,
                                        hapd, link->status,
                                        link->resp_sta_profile,
                                        sizeof(link->resp_sta_profile));
+               } else if (tx_link_status != WLAN_STATUS_SUCCESS) {
+                       /* TX link rejected the connection */
+                       link->status = WLAN_STATUS_DENIED_TX_LINK_NOT_ACCEPTED;
+                       link->resp_sta_profile_len =
+                               ieee80211_ml_build_assoc_resp(
+                                       hapd, link->status,
+                                       link->resp_sta_profile,
+                                       sizeof(link->resp_sta_profile));
                } else {
                        ieee80211_ml_process_link(iface->bss[0], sta, link,
                                                  ies, ies_len, reassoc);
@@ -5500,8 +5508,7 @@ static void handle_assoc(struct hostapd_data *hapd,
         *    issues with processing other non-Data Class 3 frames during this
         *    window.
         */
-       if (resp == WLAN_STATUS_SUCCESS)
-               hostapd_process_assoc_ml_info(hapd, sta, pos, left, reassoc);
+       hostapd_process_assoc_ml_info(hapd, sta, pos, left, reassoc, resp);
 
        if (resp == WLAN_STATUS_SUCCESS && sta &&
            add_associated_sta(hapd, sta, reassoc))