qcacld-3.0: Trigger/handle SAE using cfg80211

Add changes to trigger SAE using cfg80211 API's. Also, add
changes to handle SAE status that comes via cfg80211 ops

Change-Id: Ie113f84d4fdc927fff26b13b0e0551b92b22fd5d
CRs-Fixed: 2211041

core/hdd/src/wlan_hdd_assoc.c

@@ -164,6 +164,56 @@ static const int beacon_filter_table[] = {
 #endif
 };
 
+#if defined(WLAN_FEATURE_SAE) && \
+		defined(CFG80211_EXTERNAL_AUTH_SUPPORT)
+/**
+ * wlan_hdd_sae_callback() - Sends SAE info to supplicant
+ * @adapter: pointer adapter context
+ * @roam_info: pointer to roam info
+ *
+ * This API is used to send required SAE info to trigger SAE in supplicant.
+ *
+ * Return: None
+ */
+static void wlan_hdd_sae_callback(struct hdd_adapter *adapter,
+				  struct csr_roam_info *roam_info)
+{
+	struct hdd_context *hdd_ctx = adapter->hdd_ctx;
+	int flags;
+	struct sir_sae_info *sae_info = roam_info->sae_info;
+	struct cfg80211_external_auth_params params = {0};
+
+	if (wlan_hdd_validate_context(hdd_ctx))
+		return;
+
+	if (!sae_info) {
+		hdd_err("SAE info in NULL");
+		return;
+	}
+
+	flags = cds_get_gfp_flags();
+
+	params.key_mgmt_suite = 0x00;
+	params.key_mgmt_suite |= 0x0F << 8;
+	params.key_mgmt_suite |= 0xAC << 16;
+	params.key_mgmt_suite |= 0x8 << 24;
+
+	params.action = NL80211_EXTERNAL_AUTH_START;
+	qdf_mem_copy(params.bssid, sae_info->peer_mac_addr.bytes,
+		     QDF_MAC_ADDR_SIZE);
+	qdf_mem_copy(params.ssid.ssid, sae_info->ssid.ssId,
+		     sae_info->ssid.length);
+	params.ssid.ssid_len = sae_info->ssid.length;
+
+	cfg80211_external_auth_request(adapter->dev, &params, flags);
+	hdd_debug("SAE: sent cmd");
+}
+#else
+static inline void wlan_hdd_sae_callback(struct hdd_adapter *adapter,
+					 struct csr_roam_info *roam_info)
+{ }
+#endif
+
 /**
  * hdd_conn_set_authenticated() - set authentication state
  * @adapter: pointer to the adapter
@@ -4824,6 +4874,11 @@ hdd_sme_roam_callback(void *pContext, struct csr_roam_info *roam_info,
 		complete(&adapter->roaming_comp_var);
 		break;
 
+	case eCSR_ROAM_SAE_COMPUTE:
+		if (roam_info)
+			wlan_hdd_sae_callback(adapter, roam_info);
+		break;
+
 	default:
 		break;
 	}

core/hdd/src/wlan_hdd_cfg80211.c

@@ -15118,7 +15118,8 @@ static void wlan_hdd_cfg80211_set_wiphy_scan_flags(struct wiphy *wiphy)
 }
 #endif
 
-#ifdef WLAN_FEATURE_SAE
+#if defined(WLAN_FEATURE_SAE) && \
+	defined(CFG80211_EXTERNAL_AUTH_SUPPORT)
 /**
  * wlan_hdd_cfg80211_set_wiphy_sae_feature() - Indicates support of SAE feature
  * @wiphy: Pointer to wiphy
@@ -22249,6 +22250,69 @@ static int wlan_hdd_cfg80211_update_connect_params(struct wiphy *wiphy,
 }
 #endif
 
+#if defined(WLAN_FEATURE_SAE) && \
+	defined(CFG80211_EXTERNAL_AUTH_SUPPORT)
+/**
+ * __wlan_hdd_cfg80211_external_auth() - Handle external auth
+ * @wiphy: Pointer to wireless phy
+ * @dev: net device
+ * @params: Pointer to external auth params
+ *
+ * Return: 0 on success, negative errno on failure
+ */
+static int
+__wlan_hdd_cfg80211_external_auth(struct wiphy *wiphy,
+				  struct net_device *dev,
+				  struct cfg80211_external_auth_params *params)
+{
+	struct hdd_context *hdd_ctx = wiphy_priv(wiphy);
+	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
+	int ret;
+
+	if (hdd_get_conparam() == QDF_GLOBAL_FTM_MODE) {
+		hdd_err("Command not allowed in FTM mode");
+		return -EPERM;
+	}
+
+	if (wlan_hdd_validate_session_id(adapter->session_id)) {
+		hdd_err("invalid session id: %d", adapter->session_id);
+		return -EINVAL;
+	}
+
+	ret = wlan_hdd_validate_context(hdd_ctx);
+	if (ret)
+		return ret;
+
+
+	hdd_debug("external_auth status: %d", params->status);
+	sme_handle_sae_msg(hdd_ctx->hHal, adapter->session_id, params->status);
+
+	return ret;
+}
+
+/**
+ * wlan_hdd_cfg80211_external_auth() - Handle external auth
+ * @wiphy: Pointer to wireless phy
+ * @dev: net device
+ * @params: Pointer to external auth params
+ *
+ * Return: 0 on success, negative errno on failure
+ */
+static int
+wlan_hdd_cfg80211_external_auth(struct wiphy *wiphy,
+				struct net_device *dev,
+				struct cfg80211_external_auth_params *params)
+{
+	int ret;
+
+	cds_ssr_protect(__func__);
+	ret = __wlan_hdd_cfg80211_external_auth(wiphy, dev, params);
+	cds_ssr_unprotect(__func__);
+
+	return ret;
+}
+#endif
+
 /**
  * wlan_hdd_chan_info_cb() - channel info callback
  * @chan_info: struct scan_chan_info
@@ -22544,4 +22608,8 @@ static struct cfg80211_ops wlan_hdd_cfg80211_ops = {
 		(LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0)))
 	.update_connect_params = wlan_hdd_cfg80211_update_connect_params,
 #endif
+#if defined(WLAN_FEATURE_SAE) && \
+		defined(CFG80211_EXTERNAL_AUTH_SUPPORT)
+	.external_auth = wlan_hdd_cfg80211_external_auth,
+#endif
 };