qcacld-3.0: Clear same pmk info while processing del/flush pmk

Clear sae_single_pmk info while processing del/flush pmk command from supplicant, if required. Change-Id: Idd974822ef0426461cd9971e54d8244d64b246b5 CRs-Fixed: 2616036
2020-02-10 20:57:24 +05:30
parent 3868028546
commit 267ed0068e
7 changed files with 159 additions and 16 deletions
--- a/components/mlme/dispatcher/inc/wlan_mlme_api.h
+++ b/components/mlme/dispatcher/inc/wlan_mlme_api.h
@@ -2335,6 +2335,15 @@ wlan_mlme_update_sae_single_pmk(struct wlan_objmgr_vdev *vdev,
 void
 wlan_mlme_get_sae_single_pmk_info(struct wlan_objmgr_vdev *vdev,
 				  struct wlan_mlme_sae_single_pmk *pmksa);
+/**
+ * wlan_mlme_clear_sae_single_pmk_info - API to clear mlme_pmkid_info ap caps
+ * @vdev: vdev object
+ * @pmk : pmk info to clear
+ *
+ * Return : None
+ */
+void wlan_mlme_clear_sae_single_pmk_info(struct wlan_objmgr_vdev *vdev,
+					 struct mlme_pmk_info *pmk);
 #else
 static inline void
 wlan_mlme_set_sae_single_pmk_bss_cap(struct wlan_objmgr_psoc *psoc,
@@ -2353,7 +2362,14 @@ wlan_mlme_get_sae_single_pmk_info(struct wlan_objmgr_vdev *vdev,
 				  struct wlan_mlme_sae_single_pmk *pmksa)
 {
 }
+
+static inline
+void wlan_mlme_clear_sae_single_pmk_info(struct wlan_objmgr_vdev *vdev,
+					 struct mlme_pmk_info *pmk)
+{
+}
 #endif
+
 /**
 * mlme_get_roam_fail_reason_str() - Get fail string from enum
 * WMI_ROAM_FAIL_REASON_ID
--- a/components/mlme/dispatcher/src/wlan_mlme_api.c
+++ b/components/mlme/dispatcher/src/wlan_mlme_api.c
@@ -3666,6 +3666,37 @@ void wlan_mlme_get_sae_single_pmk_info(struct wlan_objmgr_vdev *vdev,
 	qdf_mem_zero(pmksa->pmk_info.pmk, sizeof(*pmksa->pmk_info.pmk));
 	pmksa->pmk_info.pmk_len = 0;
 }
+
+void wlan_mlme_clear_sae_single_pmk_info(struct wlan_objmgr_vdev *vdev,
+					 struct mlme_pmk_info *pmk_recv)
+{
+	struct mlme_legacy_priv *mlme_priv;
+	struct wlan_mlme_sae_single_pmk sae_single_pmk;
+
+	mlme_priv = wlan_vdev_mlme_get_ext_hdl(vdev);
+	if (!mlme_priv) {
+		mlme_legacy_err("vdev legacy private object is NULL");
+		return;
+	}
+
+	sae_single_pmk = mlme_priv->mlme_roam.sae_single_pmk;
+
+	if (!pmk_recv) {
+		/* Process flush pmk cmd */
+		mlme_legacy_debug("Flush sae_single_pmk info");
+		qdf_mem_zero(&sae_single_pmk.pmk_info,
+			     sizeof(sae_single_pmk.pmk_info));
+	} else if (pmk_recv->pmk_len != sae_single_pmk.pmk_info.pmk_len) {
+		mlme_legacy_debug("Invalid pmk len");
+		return;
+	} else if (!qdf_mem_cmp(&sae_single_pmk.pmk_info.pmk, pmk_recv->pmk,
+		   pmk_recv->pmk_len)) {
+			/* Process delete pmk cmd */
+			mlme_legacy_debug("Clear sae_single_pmk info");
+			qdf_mem_zero(&sae_single_pmk.pmk_info,
+				     sizeof(sae_single_pmk.pmk_info));
+	}
+}
 #endif

 char *mlme_get_roam_fail_reason_str(uint32_t result)
--- a/core/hdd/src/wlan_hdd_cfg80211.c
+++ b/core/hdd/src/wlan_hdd_cfg80211.c
@@ -21432,7 +21432,6 @@ static int __wlan_hdd_cfg80211_set_pmksa(struct wiphy *wiphy,
 {
 	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
 	struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
-	mac_handle_t mac_handle;
 	QDF_STATUS result = QDF_STATUS_SUCCESS;
 	int status;
 	tPmkidCacheInfo *pmk_cache;
@@ -21470,8 +21469,6 @@ static int __wlan_hdd_cfg80211_set_pmksa(struct wiphy *wiphy,
 	if (!pmk_cache)
 		return -ENOMEM;

-	mac_handle = hdd_ctx->mac_handle;
-
 	hdd_fill_pmksa_info(adapter, pmk_cache, pmksa, false);

 	/*
@@ -21487,7 +21484,7 @@ static int __wlan_hdd_cfg80211_set_pmksa(struct wiphy *wiphy,
 		   TRACE_CODE_HDD_CFG80211_SET_PMKSA,
 		   adapter->vdev_id, result);

-	sme_set_del_pmkid_cache(mac_handle, adapter->vdev_id,
+	sme_set_del_pmkid_cache(hdd_ctx->psoc, adapter->vdev_id,
 				pmk_cache, true);

 	qdf_mem_zero(pmk_cache, sizeof(pmk_cache));
@@ -21538,7 +21535,6 @@ static int __wlan_hdd_cfg80211_del_pmksa(struct wiphy *wiphy,
 {
 	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
 	struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
-	mac_handle_t mac_handle;
 	int status = 0;
 	tPmkidCacheInfo *pmk_cache;

@@ -21569,14 +21565,16 @@ static int __wlan_hdd_cfg80211_del_pmksa(struct wiphy *wiphy,
 	if (!pmk_cache)
 		return -ENOMEM;

-	mac_handle = hdd_ctx->mac_handle;
-
 	qdf_mtrace(QDF_MODULE_ID_HDD, QDF_MODULE_ID_HDD,
 		   TRACE_CODE_HDD_CFG80211_DEL_PMKSA,
 		   adapter->vdev_id, 0);

 	hdd_fill_pmksa_info(adapter, pmk_cache, pmksa, true);

+	/* clear single_pmk_info information */
+	sme_clear_sae_single_pmk_info(hdd_ctx->psoc,adapter->vdev_id,
+				      pmk_cache);
+
 	/* Delete the PMKID CSR cache */
 	if (QDF_STATUS_SUCCESS !=
 	    wlan_hdd_del_pmksa_cache(adapter, pmk_cache)) {
@@ -21588,8 +21586,9 @@ static int __wlan_hdd_cfg80211_del_pmksa(struct wiphy *wiphy,
 		status = -EINVAL;
 	}

-	sme_set_del_pmkid_cache(mac_handle, adapter->vdev_id, pmk_cache,
+	sme_set_del_pmkid_cache(hdd_ctx->psoc, adapter->vdev_id, pmk_cache,
 				false);
+
 	qdf_mem_zero(pmk_cache, sizeof(*pmk_cache));
 	qdf_mem_free(pmk_cache);

@@ -21637,7 +21636,6 @@ static int __wlan_hdd_cfg80211_flush_pmksa(struct wiphy *wiphy,
 {
 	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
 	struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
-	mac_handle_t mac_handle;
 	int errno;
 	QDF_STATUS status;

@@ -21658,15 +21656,13 @@ static int __wlan_hdd_cfg80211_flush_pmksa(struct wiphy *wiphy,
 	if (errno)
 		return errno;

-	mac_handle = hdd_ctx->mac_handle;
-
 	status = wlan_hdd_flush_pmksa_cache(adapter);
 	if (QDF_IS_STATUS_ERROR(status)) {
 		hdd_err("Cannot flush PMKIDCache");
 		errno = -EINVAL;
 	}

-	sme_set_del_pmkid_cache(mac_handle, adapter->vdev_id, NULL, false);
+	sme_set_del_pmkid_cache(hdd_ctx->psoc, adapter->vdev_id, NULL, false);
 	hdd_exit();
 	return errno;
 }
--- a/core/sme/inc/sme_api.h
+++ b/core/sme/inc/sme_api.h
@@ -2756,17 +2756,33 @@ QDF_STATUS sme_set_vc_mode_config(uint32_t vc_bitmap);

 /**
 * sme_set_del_pmkid_cache() - API to update PMKID cache
- * @mac_handle: Opaque handle to the global MAC context
+ * @psoc: psoc common object
 * @session_id: Session id
 * @pmk_cache_info: Pointer to PMK cache info
 * @is_add: boolean that implies whether to add or delete PMKID entry
 *
 * Return: QDF_STATUS
 */
-QDF_STATUS sme_set_del_pmkid_cache(mac_handle_t mac_handle, uint8_t session_id,
+QDF_STATUS sme_set_del_pmkid_cache(struct wlan_objmgr_psoc *psoc,
+				   uint8_t session_id,
 				   tPmkidCacheInfo *pmk_cache_info,
 				   bool is_add);

+/**
+ * sme_clear_sae_single_pmk_info() - Clear sae_single_pmk onfo
+ * @psoc: Psoc object
+ * @session_id: session id
+ * @pmk_cache_info: pmk cache info
+ *
+ * This function will clear sae_single_pmk info while processing delete pmk
+ * command from userspace.
+ *
+ * Return: None
+ */
+void sme_clear_sae_single_pmk_info(struct wlan_objmgr_psoc *psoc,
+				   uint8_t session_id,
+				   tPmkidCacheInfo *pmk_cache_info);
+
 /**
 * sme_send_hlp_ie_info() - API to send HLP IE info to fw
 * @mac_handle: Opaque handle to the global MAC context
--- a/core/sme/src/common/sme_api.c
+++ b/core/sme/src/common/sme_api.c
@@ -60,6 +60,7 @@
 #include "cfg_ucfg_api.h"
 #include "wlan_fwol_ucfg_api.h"
 #include <wlan_coex_ucfg_api.h>
+#include "wlan_crypto_global_api.h"

 static QDF_STATUS init_sme_cmd_list(struct mac_context *mac);

@@ -14166,7 +14167,33 @@ QDF_STATUS sme_fast_reassoc(mac_handle_t mac_handle,

 #endif

-QDF_STATUS sme_set_del_pmkid_cache(mac_handle_t mac_handle, uint8_t session_id,
+void sme_clear_sae_single_pmk_info(struct wlan_objmgr_psoc *psoc,
+				   uint8_t session_id,
+				   tPmkidCacheInfo *pmk_cache_info)
+{
+	struct wlan_crypto_pmksa *pmksa;
+	struct wlan_objmgr_vdev *vdev;
+	tPmkidCacheInfo pmk_to_del;
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc, session_id,
+						    WLAN_LEGACY_SME_ID);
+	if (!vdev) {
+		sme_err("Invalid vdev");
+		return;
+	}
+	pmksa = wlan_crypto_get_pmksa(vdev, &pmk_cache_info->BSSID);
+	if (!pmksa) {
+		wlan_objmgr_vdev_release_ref(vdev, WLAN_LEGACY_SME_ID);
+		return;
+	}
+	qdf_mem_copy(&pmk_to_del.pmk, pmksa->pmk, pmksa->pmk_len);
+	pmk_to_del.pmk_len = pmksa->pmk_len;
+	csr_clear_sae_single_pmk(psoc, session_id, &pmk_to_del);
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_LEGACY_SME_ID);
+}
+
+QDF_STATUS sme_set_del_pmkid_cache(struct wlan_objmgr_psoc *psoc,
+				   uint8_t session_id,
 				   tPmkidCacheInfo *pmk_cache_info,
 				   bool is_add)
 {
@@ -14183,6 +14210,7 @@ QDF_STATUS sme_set_del_pmkid_cache(mac_handle_t mac_handle, uint8_t session_id,

 	if (!pmk_cache_info) {
 		pmk_cache->is_flush_all = true;
+		csr_clear_sae_single_pmk(psoc, session_id, NULL);
 		goto send_flush_cmd;
 	}

--- a/core/sme/src/csr/csr_api_roam.c
+++ b/core/sme/src/csr/csr_api_roam.c
@@ -14605,6 +14605,37 @@ static void csr_mem_zero_psk_pmk(struct csr_roam_session *session)
 }
 #endif

+#if defined(WLAN_SAE_SINGLE_PMK) && defined(WLAN_FEATURE_ROAM_OFFLOAD)
+void csr_clear_sae_single_pmk(struct wlan_objmgr_psoc *psoc,
+			      uint8_t vdev_id, tPmkidCacheInfo *pmk_cache)
+{
+	struct wlan_objmgr_vdev *vdev;
+	uint32_t keymgmt;
+	struct mlme_pmk_info pmk_info;
+
+	vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc, vdev_id,
+						    WLAN_LEGACY_SME_ID);
+	if (!vdev) {
+		sme_err("vdev is NULL");
+		return;
+	}
+
+	keymgmt = wlan_crypto_get_param(vdev, WLAN_CRYPTO_PARAM_KEY_MGMT);
+	if (!(keymgmt & (1 << WLAN_CRYPTO_KEY_MGMT_SAE))) {
+		wlan_objmgr_vdev_release_ref(vdev, WLAN_LEGACY_SME_ID);
+		return;
+	}
+	if (pmk_cache) {
+		qdf_mem_copy(&pmk_info.pmk, pmk_cache->pmk, pmk_cache->pmk_len);
+		pmk_info.pmk_len = pmk_cache->pmk_len;
+		wlan_mlme_clear_sae_single_pmk_info(vdev, &pmk_info);
+	} else {
+		wlan_mlme_clear_sae_single_pmk_info(vdev, NULL);
+	}
+	wlan_objmgr_vdev_release_ref(vdev, WLAN_LEGACY_SME_ID);
+}
+#endif
+
 QDF_STATUS csr_roam_del_pmkid_from_cache(struct mac_context *mac,
 					 uint32_t sessionId,
 					 tPmkidCacheInfo *pmksa,
@@ -14632,12 +14663,17 @@ QDF_STATUS csr_roam_del_pmkid_from_cache(struct mac_context *mac,
 		/* Flush the entire cache */
 		qdf_mem_zero(pSession->PmkidCacheInfo,
 			     sizeof(tPmkidCacheInfo) * CSR_MAX_PMKID_ALLOWED);
+		/* flush single_pmk_info information */
+		csr_clear_sae_single_pmk(mac->psoc, pSession->vdev_id, NULL);
 		pSession->NumPmkidCache = 0;
 		pSession->curr_cache_idx = 0;
 		csr_mem_zero_psk_pmk(pSession);
 		return QDF_STATUS_SUCCESS;
 	}

+	/* clear single_pmk_info information */
+	csr_clear_sae_single_pmk(mac->psoc, pSession->vdev_id, pmksa);
+
 	/* !flush_cache - so look up in the cache */
 	for (Index = 0; Index < CSR_MAX_PMKID_ALLOWED; Index++) {
 		cached_pmksa = &pSession->PmkidCacheInfo[Index];
--- a/core/sme/src/csr/csr_inside_api.h
+++ b/core/sme/src/csr/csr_inside_api.h
@@ -919,6 +919,26 @@ QDF_STATUS csr_roam_del_pmkid_from_cache(struct mac_context *mac,
 					 tPmkidCacheInfo *pmksa,
 					 bool flush_cache);

+#if defined(WLAN_SAE_SINGLE_PMK) && defined(WLAN_FEATURE_ROAM_OFFLOAD)
+/**
+ * csr_clear_sae_single_pmk - API to clear single_pmk_info cache
+ * @psoc: psoc common object
+ * @vdev_id: session id
+ * @pmksa: pmk info
+ *
+ * Return : None
+ */
+void csr_clear_sae_single_pmk(struct wlan_objmgr_psoc *psoc,
+			      uint8_t vdev_id, tPmkidCacheInfo *pmksa);
+
+#else
+static inline void
+csr_clear_sae_single_pmk(struct wlan_objmgr_psoc *psoc, uint8_t vdev_id,
+			 tPmkidCacheInfo *pmksa)
+{
+}
+#endif
+
 QDF_STATUS csr_send_ext_change_channel(struct mac_context *mac_ctx,
 				uint32_t channel, uint8_t session_id);