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@@ -28,6 +28,10 @@
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#include <osif_cm_util.h>
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#include <wlan_cfg80211.h>
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#include <wlan_cfg80211_scan.h>
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+#ifdef CONN_MGR_ADV_FEATURE
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+#include "wlan_mlme_ucfg_api.h"
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+#endif
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+#include "wlan_crypto_global_api.h"
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#ifdef CONN_MGR_ADV_FEATURE
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#ifdef WLAN_FEATURE_FILS_SK
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@@ -85,6 +89,291 @@ static inline void osif_roamed_ind(struct net_device *dev,
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}
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#endif
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+#ifdef WLAN_FEATURE_ROAM_OFFLOAD
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+#ifdef WLAN_FEATURE_FILS_SK
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+/**
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+ * wlan_hdd_add_fils_params_roam_auth_event() - Adds FILS params in roam auth
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+ * @skb: SK buffer
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+ * @roam_info: Roam info
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+ *
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+ * API adds fils params[pmk, pmkid, next sequence number] to roam auth event
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+ *
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+ * Return: zero on success, error code on failure
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+ */
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+static int
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+osif_add_fils_params_roam_auth_event(struct sk_buff *skb,
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+ struct wlan_roam_sync_info *roam_info)
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+{
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+ if (roam_info->pmk_len &&
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+ nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PMK,
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+ roam_info->pmk_len, roam_info->pmk)) {
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+ osif_err("pmk send fail");
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+ return -EINVAL;
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+ }
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+
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+ if (nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PMKID,
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+ PMKID_LEN, roam_info->pmkid)) {
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+ osif_err("pmkid send fail");
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+ return -EINVAL;
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+ }
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+
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+ osif_debug("Update ERP Seq Num %d, Next ERP Seq Num %d",
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+ roam_info->update_erp_next_seq_num,
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+ roam_info->next_erp_seq_num);
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+ if (roam_info->update_erp_next_seq_num &&
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+ nla_put_u16(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_FILS_ERP_NEXT_SEQ_NUM,
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+ roam_info->next_erp_seq_num)) {
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+ osif_err("ERP seq num send fail");
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+ return -EINVAL;
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+ }
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+
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+ return 0;
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+}
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+#else
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+static inline int
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+osif_add_fils_params_roam_auth_event(struct sk_buff *skb,
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+ struct wlan_roam_sync_info *roam_info)
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+{
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+ return 0;
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+}
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+#endif
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+
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+/**
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+ * osif_get_roam_reason() - convert wmi roam reason to
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+ * enum qca_roam_reason
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+ * @roam_scan_trigger: wmi roam scan trigger ID
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+ *
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+ * Return: Meaningful qca_roam_reason from enum WMI_ROAM_TRIGGER_REASON_ID
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+ */
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+static enum qca_roam_reason osif_get_roam_reason(uint16_t roam_scan_trigger)
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+{
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+ switch (roam_scan_trigger) {
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+ case ROAM_TRIGGER_REASON_PER:
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+ return QCA_ROAM_REASON_PER;
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+ case ROAM_TRIGGER_REASON_BMISS:
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+ return QCA_ROAM_REASON_BEACON_MISS;
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+ case ROAM_TRIGGER_REASON_LOW_RSSI:
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+ case ROAM_TRIGGER_REASON_BACKGROUND:
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+ return QCA_ROAM_REASON_POOR_RSSI;
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+ case ROAM_TRIGGER_REASON_HIGH_RSSI:
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+ return QCA_ROAM_REASON_BETTER_RSSI;
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+ case ROAM_TRIGGER_REASON_DENSE:
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+ return QCA_ROAM_REASON_CONGESTION;
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+ case ROAM_TRIGGER_REASON_FORCED:
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+ return QCA_ROAM_REASON_USER_TRIGGER;
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+ case ROAM_TRIGGER_REASON_BTM:
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+ return QCA_ROAM_REASON_BTM;
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+ case ROAM_TRIGGER_REASON_BSS_LOAD:
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+ return QCA_ROAM_REASON_BSS_LOAD;
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+ default:
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+ return QCA_ROAM_REASON_UNKNOWN;
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+ }
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+
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+ return QCA_ROAM_REASON_UNKNOWN;
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+}
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+
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+/**
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+ * osif_send_roam_auth_event() - API to send roam auth event response to kernel
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+ * @vdev: vdev pointer
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+ * @osif_priv: OS private structure of vdev
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+ * @rsp: Connection manager response
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+ *
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+ * This is called when wlan driver needs to send the roaming and
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+ * authorization information after roaming.
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+ *
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+ * The information that would be sent is the request RSN IE, response
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+ * RSN IE and BSSID of the newly roamed AP.
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+ *
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+ * If the Authorized status is authenticated, then additional parameters
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+ * like PTK's KCK and KEK and Replay Counter would also be passed to the
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+ * supplicant.
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+ *
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+ * The supplicant upon receiving this event would ignore the legacy
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+ * cfg80211_roamed call and use the entire information from this event.
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+ * The cfg80211_roamed should still co-exist since the kernel will
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+ * make use of the parameters even if the supplicant ignores it.
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+ *
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+ *
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+ * Context: Any context.
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+ * Return: int
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+ */
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+static int osif_send_roam_auth_event(struct wlan_objmgr_vdev *vdev,
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+ struct vdev_osif_priv *osif_priv,
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+ struct wlan_cm_connect_resp *rsp,
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+ const uint8_t *req_ie,
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+ size_t req_ie_len, const uint8_t *resp_ie,
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+ size_t resp_ie_len)
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+{
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+ struct wlan_objmgr_psoc *psoc;
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+ uint32_t fils_params_len;
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+ struct sk_buff *skb = NULL;
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+ struct wlan_roam_sync_info *roaming_info;
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+ int status;
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+ int32_t akm;
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+ bool roam_offload_enable;
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+
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+ psoc = wlan_vdev_get_psoc(vdev);
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+ ucfg_mlme_get_roaming_offload(psoc, &roam_offload_enable);
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+
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+ if (!roam_offload_enable)
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+ return 0;
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+
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+ roaming_info = rsp->roaming_info;
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+
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+ /*
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+ * PMK is sent from FW in Roam Synch Event for FILS Roaming.
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+ * In that case, add three more NL attributes.ie. PMK, PMKID
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+ * and ERP next sequence number. Add corresponding lengths
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+ * with 3 extra NL message headers for each of the
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+ * aforementioned params.
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+ */
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+ fils_params_len = roaming_info->pmk_len + PMKID_LEN +
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+ sizeof(uint16_t) + (3 * NLMSG_HDRLEN);
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+
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+ skb = cfg80211_vendor_event_alloc(osif_priv->wdev->wiphy,
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+ osif_priv->wdev,
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+ ETH_ALEN + req_ie_len +
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+ resp_ie_len +
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+ sizeof(uint8_t) + REPLAY_CTR_LEN +
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+ KCK_KEY_LEN + roaming_info->kek_len +
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+ sizeof(uint16_t) + sizeof(uint8_t) +
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+ (9 * NLMSG_HDRLEN) + fils_params_len,
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+ QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH_INDEX,
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+ GFP_KERNEL);
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+
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+ if (!skb) {
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+ osif_err("cfg80211_vendor_event_alloc failed");
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+ return -1;
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+ }
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+
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+ if (nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID,
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+ ETH_ALEN, rsp->bssid.bytes) ||
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+ nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REQ_IE,
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+ req_ie_len, req_ie) ||
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+ nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_RESP_IE,
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+ resp_ie_len, resp_ie)) {
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+ osif_err("nla put fail");
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+ goto nla_put_failure;
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+ }
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+
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+ if (roaming_info->auth_status == ROAM_AUTH_STATUS_AUTHENTICATED) {
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+ osif_debug("Include Auth Params TLV's");
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+ if (nla_put_u8(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AUTHORIZED,
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+ true)) {
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+ osif_err("nla put fail");
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+ goto nla_put_failure;
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+ }
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+ akm = wlan_crypto_get_param(vdev,
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+ WLAN_CRYPTO_PARAM_KEY_MGMT);
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+ /* if FT or CCKM connection: dont send replay counter */
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+ if (!QDF_HAS_PARAM(akm, WLAN_CRYPTO_KEY_MGMT_FT_IEEE8021X) &&
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+ !QDF_HAS_PARAM(akm, WLAN_CRYPTO_KEY_MGMT_PSK) &&
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+ !QDF_HAS_PARAM(akm, WLAN_CRYPTO_KEY_MGMT_FT_SAE) &&
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+ !QDF_HAS_PARAM(akm, WLAN_CRYPTO_KEY_MGMT_FT_IEEE8021X_SHA384) &&
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+ !QDF_HAS_PARAM(akm, WLAN_CRYPTO_KEY_MGMT_CCKM) &&
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+ nla_put(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_KEY_REPLAY_CTR,
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+ REPLAY_CTR_LEN,
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+ roaming_info->replay_ctr)) {
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+ osif_err("non FT/non CCKM connection");
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+ osif_err("failed to send replay counter");
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+ goto nla_put_failure;
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+ }
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+ if (roaming_info->kek_len > MAX_KEK_LENGTH ||
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+ nla_put(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PTK_KCK,
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+ roaming_info->kck_len, roaming_info->kck) ||
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+ nla_put(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PTK_KEK,
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+ roaming_info->kek_len, roaming_info->kek)) {
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+ osif_err("nla put fail, kek_len %d",
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+ roaming_info->kek_len);
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+ goto nla_put_failure;
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+ }
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+
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+ if (nla_put_u16(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REASON,
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+ osif_get_roam_reason(roaming_info->roam_reason))) {
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+ osif_err("roam reason send failure");
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+ goto nla_put_failure;
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+ }
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+
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+ status = osif_add_fils_params_roam_auth_event(skb,
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+ roaming_info);
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+ if (status)
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+ goto nla_put_failure;
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+ /*
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+ * Save the gtk rekey parameters in HDD STA context. They will
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+ * be used next time when host enables GTK offload and goes
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+ * into power save state.
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+ */
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+ osif_cm_save_gtk(vdev, rsp);
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+ osif_debug("roam_info_ptr->replay_ctr 0x%llx",
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+ *((uint64_t *)roaming_info->replay_ctr));
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+
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+ } else {
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+ osif_debug("No Auth Params TLV's");
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+ if (nla_put_u8(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AUTHORIZED,
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+ false)) {
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+ osif_err("nla put fail");
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+ goto nla_put_failure;
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+ }
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+ }
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+
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+ osif_debug("Auth Status = %d Subnet Change Status = %d",
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+ roaming_info->auth_status,
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+ roaming_info->subnet_change_status);
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+ /*
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+ * Add subnet change status if subnet has changed
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+ * 0 = unchanged
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+ * 1 = changed
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+ * 2 = unknown
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+ */
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+ if (roaming_info->subnet_change_status) {
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+ if (nla_put_u8(skb,
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+ QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_SUBNET_STATUS,
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+ roaming_info->subnet_change_status)) {
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+ osif_err("nla put fail");
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+ goto nla_put_failure;
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+ }
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+ }
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+
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+ cfg80211_vendor_event(skb, GFP_KERNEL);
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+ return 0;
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+
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+nla_put_failure:
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+ kfree_skb(skb);
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+ return -1;
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+}
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+#else
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+static inline int
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+osif_send_roam_auth_event(struct wlan_objmgr_vdev *vdev,
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+ struct vdev_osif_priv *osif_priv,
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+ struct wlan_cm_connect_resp *rsp,
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+ const uint8_t *req_ie,
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+ size_t req_ie_len, const uint8_t *resp_ie,
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+ size_t resp_ie_len)
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+{
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+ return 0;
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+}
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+#endif
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+
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+static void osif_cm_get_reassoc_req_ie_data(struct element_info *assoc_req,
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+ size_t *ie_data_len,
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+ const uint8_t **ie_data_ptr)
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+{
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+ /* Validate IE and length */
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+ if (!assoc_req->len || !assoc_req->ptr ||
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+ assoc_req->len <= WLAN_REASSOC_REQ_IES_OFFSET)
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+ return;
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+
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+ *ie_data_len = assoc_req->len - WLAN_REASSOC_REQ_IES_OFFSET;
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+ *ie_data_ptr = assoc_req->ptr + WLAN_REASSOC_REQ_IES_OFFSET;
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+}
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+
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void osif_indicate_reassoc_results(struct wlan_objmgr_vdev *vdev,
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struct vdev_osif_priv *osif_priv,
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struct wlan_cm_connect_resp *rsp)
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@@ -96,10 +385,18 @@ void osif_indicate_reassoc_results(struct wlan_objmgr_vdev *vdev,
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const uint8_t *rsp_ie = NULL;
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struct cfg80211_bss *bss;
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struct ieee80211_channel *chan;
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+ struct wlan_objmgr_psoc *psoc;
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+ bool roam_offload = false;
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if (QDF_IS_STATUS_ERROR(rsp->connect_status))
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return;
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+ psoc = wlan_vdev_get_psoc(vdev);
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+ if (!psoc)
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+ return;
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+
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+ ucfg_mlme_is_roam_scan_offload_enabled(psoc, &roam_offload);
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+
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chan = ieee80211_get_channel(osif_priv->wdev->wiphy,
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rsp->freq);
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bss = wlan_cfg80211_get_bss(osif_priv->wdev->wiphy, chan,
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@@ -107,15 +404,17 @@ void osif_indicate_reassoc_results(struct wlan_objmgr_vdev *vdev,
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rsp->ssid.length);
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if (!bss)
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osif_warn("not able to find bss");
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- osif_cm_get_assoc_req_ie_data(&rsp->connect_ies.assoc_req,
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- &req_len, &req_ie);
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+ if (!roam_offload || rsp->is_ft)
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+ osif_cm_get_assoc_req_ie_data(&rsp->connect_ies.assoc_req,
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+ &req_len, &req_ie);
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+ else
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+ osif_cm_get_reassoc_req_ie_data(&rsp->connect_ies.assoc_req,
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+ &req_len, &req_ie);
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osif_cm_get_assoc_rsp_ie_data(&rsp->connect_ies.assoc_rsp,
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&rsp_len, &rsp_ie);
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osif_roamed_ind(dev, bss, req_ie, req_len, rsp_ie, rsp_len);
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-
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- osif_cm_save_gtk(vdev, rsp);
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-
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- /* Add osif_send_roam_auth_event (wlan_hdd_send_roam_auth_event) */
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+ osif_send_roam_auth_event(vdev, osif_priv, rsp, req_ie, req_len, rsp_ie,
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+ rsp_len);
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osif_update_fils_hlp_data(dev, vdev, rsp);
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}
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Amruta Kulkarni