qcacld-2.0: Trigger/handle SAE using cfg80211

propagation from qcacld-3.0 to qcacld-2.0

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: 2405939

2 files changed, 119 insertions, 1 deletions

diff --git a/CORE/HDD/src/wlan_hdd_assoc.c b/CORE/HDD/src/wlan_hdd_assoc.c
index 122a6aec9476..638c203f6fd7 100644
--- a/CORE/HDD/src/wlan_hdd_assoc.c
+++ b/CORE/HDD/src/wlan_hdd_assoc.c
@@ -149,6 +149,56 @@ static eHalStatus hdd_RoamSetKeyCompleteHandler( hdd_adapter_t *pAdapter,
                                                 eRoamCmdStatus roamStatus,
                                                 eCsrRoamResult roamResult );
 
+#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(hdd_adapter_t *adapter,
+				tCsrRoamInfo *roam_info)
+{
+	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+	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) {
+		hddLog(LOGE, FL("SAE info in NULL"));
+		return;
+	}
+
+	flags = vos_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;
+	vos_mem_copy(params.bssid, sae_info->peer_mac_addr.bytes,
+		VOS_MAC_ADDR_SIZE);
+	vos_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);
+	hddLog(LOG1, FL("SAE: sent cmd"));
+}
+#else
+static void wlan_hdd_sae_callback(hdd_adapter_t *adapter,
+				tCsrRoamInfo *roam_info)
+{ }
+#endif
+
 static v_VOID_t
 hdd_connSetAuthenticated(hdd_adapter_t *pAdapter, v_U8_t authState)
 {
@@ -4977,6 +5027,10 @@ hdd_smeRoamCallback(void *pContext, tCsrRoamInfo *pRoamInfo, tANI_U32 roamId,
             hdd_ndp_event_handler(pAdapter, pRoamInfo, roamId, roamStatus,
                 roamResult );
             break;
+        case eCSR_ROAM_SAE_COMPUTE:
+            if (pRoamInfo)
+                wlan_hdd_sae_callback(pAdapter, pRoamInfo);
+        break;
         case  eCSR_ROAM_STA_CHANNEL_SWITCH:
 	  {
 		pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index 1b6373dec642..388a7517b109 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -16195,7 +16195,8 @@ hdd_wiphy_set_max_sched_scans(struct wiphy *wiphy, uint8_t max_scans)
 }
 #endif /* KERNEL_VERSION(4, 12, 0) */
 
-#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
@@ -28405,6 +28406,65 @@ static int wlan_hdd_cfg80211_flush_pmksa(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)
+{
+	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
+	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
+	int ret;
+
+	if (hdd_get_conparam() == VOS_FTM_MODE) {
+		hddLog(VOS_TRACE_LEVEL_ERROR,
+			FL("Command not allowed in FTM mode"));
+		return -EPERM;
+	}
+
+	ret = wlan_hdd_validate_context(hdd_ctx);
+	if (ret)
+		return ret;
+
+	hddLog(VOS_TRACE_LEVEL_DEBUG,
+		FL("external_auth status: %d"), params->status);
+	sme_handle_sae_msg(hdd_ctx->hHal, adapter->sessionId, 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;
+
+	vos_ssr_protect(__func__);
+	ret = __wlan_hdd_cfg80211_external_auth(wiphy, dev, params);
+	vos_ssr_unprotect(__func__);
+
+	return ret;
+}
+#endif
+
 #if defined(WLAN_FEATURE_VOWIFI_11R) && defined(KERNEL_SUPPORT_11R_CFG80211)
 static int
 __wlan_hdd_cfg80211_update_ft_ies(struct wiphy *wiphy,
@@ -33032,4 +33092,8 @@ static struct cfg80211_ops wlan_hdd_cfg80211_ops =
     defined(CFG80211_ABORT_SCAN)
      .abort_scan = wlan_hdd_cfg80211_abort_scan,
 #endif
+#if defined(WLAN_FEATURE_SAE) && \
+    defined(CFG80211_EXTERNAL_AUTH_SUPPORT)
+    .external_auth = wlan_hdd_cfg80211_external_auth,
+#endif
 };