From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Tue, 6 Dec 2022 09:46:07 +0000 (+0200)
Subject: SME: Add support for handling association with MLD
X-Git-Tag: hostap_2_11~1375
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=23039f5e4a095cb54a342b25beee776e0a54caa6;p=thirdparty%2Fhostap.git

SME: Add support for handling association with MLD

In case both the local driver and the AP support MLD, request an MLD
association from the driver.

When processing the association event from the driver verify that the
multi link information in the (Re)Association Response frame ML element
matches the links on which the association was expected.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
---

diff --git a/wpa_supplicant/sme.c b/wpa_supplicant/sme.c
index 7d44fe0fa..af906448d 100644
--- a/wpa_supplicant/sme.c
+++ b/wpa_supplicant/sme.c
@@ -2431,6 +2431,31 @@ mscs_fail:
 	else
 		params.uapsd = -1;
 
+	if (wpa_s->valid_links) {
+		unsigned int i;
+
+		wpa_printf(MSG_DEBUG,
+			   "MLD: In association. assoc_link_id=%u, valid_links=0x%x",
+			   wpa_s->mlo_assoc_link_id, wpa_s->valid_links);
+
+		params.mld_params.mld_addr = wpa_s->ap_mld_addr;
+		params.mld_params.valid_links = wpa_s->valid_links;
+		params.mld_params.assoc_link_id = wpa_s->mlo_assoc_link_id;
+		for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
+			if (!(wpa_s->valid_links & BIT(i)))
+				continue;
+
+			params.mld_params.mld_links[i].bssid =
+				wpa_s->links[i].bssid;
+			params.mld_params.mld_links[i].freq =
+				wpa_s->links[i].freq;
+
+			wpa_printf(MSG_DEBUG, "MLD: id=%u, freq=%d, " MACSTR,
+				   i, wpa_s->links[i].freq,
+				   MAC2STR(wpa_s->links[i].bssid));
+		}
+	}
+
 	if (wpa_drv_associate(wpa_s, &params) < 0) {
 		wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
 			"driver failed");