diff --git a/src/pasn/Makefile b/src/pasn/Makefile
new file mode 100644
index 0000000..a5b2c6b
--- /dev/null
+++ b/src/pasn/Makefile
@@ -0,0 +1,16 @@
+CFLAGS += -DCONFIG_SAE
+CFLAGS += -DCONFIG_FILS
+CFLAGS += -DIEEE8021X_EAPOL
+CFLAGS += -DCONFIG_IEEE80211R
+CFLAGS += -DCONFIG_TESTING_OPTIONS
+CFLAGS += -DCONFIG_SAE_PK
+CFLAGS += -DCONFIG_SHA256
+CFLAGS += -DCONFIG_SHA384
+CFLAGS += -DCONFIG_SHA512
+CFLAGS += -DCONFIG_PASN
+
+LIB_OBJS= \
+	pasn_initiator.o \
+	pasn_responder.o
+
+include ../lib.rules
diff --git a/src/pasn/pasn_common.h b/src/pasn/pasn_common.h
new file mode 100644
index 0000000..9c2f397
--- /dev/null
+++ b/src/pasn/pasn_common.h
@@ -0,0 +1,184 @@
+/*
+ * PASN info for initiator and responder
+ *
+ * Copyright (C) 2019, Intel Corporation
+ * Copyright (c) 2022, Jouni Malinen <j@w1.fi>
+ * Copyright (C) 2022, Qualcomm Innovation Center, Inc.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef PASN_COMMON_H
+#define PASN_COMMON_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef CONFIG_PASN
+
+enum pasn_fils_state {
+	PASN_FILS_STATE_NONE = 0,
+	PASN_FILS_STATE_PENDING_AS,
+	PASN_FILS_STATE_COMPLETE
+};
+
+struct pasn_fils {
+	u8 state;
+	u8 nonce[FILS_NONCE_LEN];
+	u8 anonce[FILS_NONCE_LEN];
+	u8 session[FILS_SESSION_LEN];
+	u8 erp_pmkid[PMKID_LEN];
+	bool completed;
+	struct wpabuf *erp_resp;
+};
+
+struct pasn_data {
+	int akmp;
+	int cipher;
+	u16 group;
+	bool secure_ltf;
+	int freq;
+	size_t kdk_len;
+
+	u8 trans_seq;
+	u8 status;
+
+	u8 own_addr[ETH_ALEN];
+	u8 peer_addr[ETH_ALEN];
+	u8 bssid[ETH_ALEN];
+	size_t pmk_len;
+	u8 pmk[PMK_LEN_MAX];
+	bool using_pmksa;
+
+	u8 hash[SHA384_MAC_LEN];
+
+	struct wpabuf *beacon_rsne_rsnxe;
+	struct wpa_ptk ptk;
+	struct crypto_ecdh *ecdh;
+
+	struct wpabuf *comeback;
+	u16 comeback_after;
+
+#ifdef CONFIG_SAE
+	struct sae_data sae;
+	struct sae_pt *pt;
+#endif /* CONFIG_SAE */
+
+#ifdef CONFIG_FILS
+	bool fils_eapol;
+	bool fils_wd_valid;
+	struct pasn_fils fils;
+#endif /* CONFIG_FILS */
+
+#ifdef CONFIG_IEEE80211R
+	u8 pmk_r1[PMK_LEN_MAX];
+	size_t pmk_r1_len;
+	u8 pmk_r1_name[WPA_PMK_NAME_LEN];
+#endif /* CONFIG_IEEE80211R */
+	/* Note that this pointers to RSN PMKSA cache are actually defined
+	 * differently for the PASN initiator (using RSN Supplicant
+	 * implementation) and PASN responser (using RSN Authenticator
+	 * implementation). Functions cannot be mixed between those cases. */
+	struct rsn_pmksa_cache *pmksa;
+	struct rsn_pmksa_cache_entry *pmksa_entry;
+	struct eapol_sm *eapol;
+	int fast_reauth;
+#ifdef CONFIG_TESTING_OPTIONS
+	int corrupt_mic;
+#endif /* CONFIG_TESTING_OPTIONS */
+	void *cb_ctx;
+	u16 rsnxe_capab;
+	int network_id;
+
+	u8 wrapped_data_format;
+	struct wpabuf *secret;
+
+	/* Reponder */
+	int wpa_key_mgmt;
+	int rsn_pairwise;
+	bool derive_kdk;
+	const char *password;
+	int disable_pmksa_caching;
+	int *pasn_groups;
+	struct wpabuf *wrapped_data;
+	int use_anti_clogging;
+	const u8 *rsn_ie;
+	const u8 *rsnxe_ie;
+	size_t rsn_ie_len;
+
+	u8 *comeback_key;
+	struct os_reltime last_comeback_key_update;
+	u16 comeback_idx;
+	u16 *comeback_pending_idx;
+
+	bool custom_pmkid_valid;
+	u8 custom_pmkid[PMKID_LEN];
+
+	/**
+	 * Extra elements to add into Authentication frames. These can be used,
+	 * e.g., for Wi-Fi Aware use cases.
+	 */
+	const u8 *extra_ies;
+	size_t extra_ies_len;
+
+	/**
+	 * send_mgmt - Function handler to transmit a Management frame
+	 * @ctx: Callback context from cb_ctx
+	 * @frame_buf : Frame to transmit
+	 * @frame_len: Length of frame to transmit
+	 * @freq: Frequency in MHz for the channel on which to transmit
+	 * @wait_dur: How many milliseconds to wait for a response frame
+	 * Returns: 0 on success, -1 on failure
+	 */
+	int (*send_mgmt)(void *ctx, const u8 *data, size_t data_len, int noack,
+			 unsigned int freq, unsigned int wait);
+	/**
+	 * validate_custom_pmkid - Handler to validate vendor specific PMKID
+	 * @ctx: Callback context from cb_ctx
+	 * @addr : MAC address of the peer
+	 * @pmkid: Custom PMKID
+	 * Returns: 0 on success (valid PMKID), -1 on failure
+	 */
+	int (*validate_custom_pmkid)(void *ctx, const u8 *addr,
+				     const u8 *pmkid);
+};
+
+/* Initiator */
+
+void wpa_pasn_reset(struct pasn_data *pasn);
+int wpas_pasn_start(struct pasn_data *pasn, const u8 *own_addr,
+		    const u8 *peer_addr, const u8 *bssid,
+		    int akmp, int cipher, u16 group,
+		    int freq, const u8 *beacon_rsne, u8 beacon_rsne_len,
+		    const u8 *beacon_rsnxe, u8 beacon_rsnxe_len,
+		    const struct wpabuf *comeback);
+int wpa_pasn_verify(struct pasn_data *pasn, const u8 *own_addr,
+		    const u8 *peer_addr, const u8 *bssid,
+		    int akmp, int cipher, u16 group,
+		    int freq, const u8 *beacon_rsne, u8 beacon_rsne_len,
+		    const u8 *beacon_rsnxe, u8 beacon_rsnxe_len,
+		    const struct wpabuf *comeback);
+int wpa_pasn_auth_rx(struct pasn_data *pasn, const u8 *data, size_t len,
+		     struct wpa_pasn_params_data *pasn_params);
+int wpa_pasn_auth_tx_status(struct pasn_data *pasn,
+			    const u8 *data, size_t data_len, u8 acked);
+
+/* Responder */
+int handle_auth_pasn_1(struct pasn_data *pasn,
+		       const u8 *own_addr, const u8 *peer_addr,
+		       const struct ieee80211_mgmt *mgmt, size_t len);
+int handle_auth_pasn_3(struct pasn_data *pasn, const u8 *own_addr,
+		       const u8 *peer_addr,
+		       const struct ieee80211_mgmt *mgmt, size_t len);
+int handle_auth_pasn_resp(struct pasn_data *pasn, const u8 *own_addr,
+			  const u8 *peer_addr,
+			  struct rsn_pmksa_cache_entry *pmksa, u16 status);
+
+#endif /* CONFIG_PASN */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* PASN_COMMON_H */
diff --git a/src/pasn/pasn_initiator.c b/src/pasn/pasn_initiator.c
new file mode 100644
index 0000000..1f9a508
--- /dev/null
+++ b/src/pasn/pasn_initiator.c
@@ -0,0 +1,1393 @@
+/*
+ * PASN initiator processing
+ *
+ * Copyright (C) 2019, Intel Corporation
+ * Copyright (C) 2022, Qualcomm Innovation Center, Inc.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "common/wpa_common.h"
+#include "common/sae.h"
+#include "common/ieee802_11_common.h"
+#include "common/ieee802_11_defs.h"
+#include "common/dragonfly.h"
+#include "crypto/sha384.h"
+#include "crypto/crypto.h"
+#include "crypto/random.h"
+#include "eap_common/eap_defs.h"
+#include "eapol_supp/eapol_supp_sm.h"
+#include "rsn_supp/wpa.h"
+#include "rsn_supp/pmksa_cache.h"
+#include "pasn_common.h"
+
+
+#ifdef CONFIG_SAE
+
+static struct wpabuf * wpas_pasn_wd_sae_commit(struct pasn_data *pasn)
+{
+	struct wpabuf *buf = NULL;
+	int ret;
+
+	ret = sae_set_group(&pasn->sae, pasn->group);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to set SAE group");
+		return NULL;
+	}
+
+	ret = sae_prepare_commit_pt(&pasn->sae, pasn->pt,
+				    pasn->own_addr, pasn->peer_addr,
+				    NULL, NULL);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to prepare SAE commit");
+		return NULL;
+	}
+
+	/* Need to add the entire Authentication frame body */
+	buf = wpabuf_alloc(6 + SAE_COMMIT_MAX_LEN);
+	if (!buf) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to allocate SAE buffer");
+		return NULL;
+	}
+
+	wpabuf_put_le16(buf, WLAN_AUTH_SAE);
+	wpabuf_put_le16(buf, 1);
+	wpabuf_put_le16(buf, WLAN_STATUS_SAE_HASH_TO_ELEMENT);
+
+	sae_write_commit(&pasn->sae, buf, NULL, 0);
+	pasn->sae.state = SAE_COMMITTED;
+
+	return buf;
+}
+
+
+static int wpas_pasn_wd_sae_rx(struct pasn_data *pasn, struct wpabuf *wd)
+{
+	const u8 *data;
+	size_t buf_len;
+	u16 len, res, alg, seq, status;
+	int groups[] = { pasn->group, 0 };
+	int ret;
+
+	if (!wd)
+		return -1;
+
+	data = wpabuf_head_u8(wd);
+	buf_len = wpabuf_len(wd);
+
+	/* first handle the commit message */
+	if (buf_len < 2) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE buffer too short (commit)");
+		return -1;
+	}
+
+	len = WPA_GET_LE16(data);
+	if (len < 6 || buf_len - 2 < len) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE buffer too short for commit");
+		return -1;
+	}
+
+	buf_len -= 2;
+	data += 2;
+
+	alg = WPA_GET_LE16(data);
+	seq = WPA_GET_LE16(data + 2);
+	status = WPA_GET_LE16(data + 4);
+
+	wpa_printf(MSG_DEBUG, "PASN: SAE: commit: alg=%u, seq=%u, status=%u",
+		   alg, seq, status);
+
+	if (alg != WLAN_AUTH_SAE || seq != 1 ||
+	    status != WLAN_STATUS_SAE_HASH_TO_ELEMENT) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE: dropping peer commit");
+		return -1;
+	}
+
+	res = sae_parse_commit(&pasn->sae, data + 6, len - 6, NULL, 0, groups,
+			       1, NULL);
+	if (res != WLAN_STATUS_SUCCESS) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE failed parsing commit");
+		return -1;
+	}
+
+	/* Process the commit message and derive the PMK */
+	ret = sae_process_commit(&pasn->sae);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "SAE: Failed to process peer commit");
+		return -1;
+	}
+
+	buf_len -= len;
+	data += len;
+
+	/* Handle the confirm message */
+	if (buf_len < 2) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE buffer too short (confirm)");
+		return -1;
+	}
+
+	len = WPA_GET_LE16(data);
+	if (len < 6 || buf_len - 2 < len) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE buffer too short for confirm");
+		return -1;
+	}
+
+	buf_len -= 2;
+	data += 2;
+
+	alg = WPA_GET_LE16(data);
+	seq = WPA_GET_LE16(data + 2);
+	status = WPA_GET_LE16(data + 4);
+
+	wpa_printf(MSG_DEBUG, "PASN: SAE confirm: alg=%u, seq=%u, status=%u",
+		   alg, seq, status);
+
+	if (alg != WLAN_AUTH_SAE || seq != 2 || status != WLAN_STATUS_SUCCESS) {
+		wpa_printf(MSG_DEBUG, "PASN: Dropping peer SAE confirm");
+		return -1;
+	}
+
+	res = sae_check_confirm(&pasn->sae, data + 6, len - 6, NULL);
+	if (res != WLAN_STATUS_SUCCESS) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE failed checking confirm");
+		return -1;
+	}
+
+	wpa_printf(MSG_DEBUG, "PASN: SAE completed successfully");
+	pasn->sae.state = SAE_ACCEPTED;
+
+	return 0;
+}
+
+
+static struct wpabuf * wpas_pasn_wd_sae_confirm(struct pasn_data *pasn)
+{
+	struct wpabuf *buf = NULL;
+
+	/* Need to add the entire authentication frame body */
+	buf = wpabuf_alloc(6 + SAE_CONFIRM_MAX_LEN);
+	if (!buf) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to allocate SAE buffer");
+		return NULL;
+	}
+
+	wpabuf_put_le16(buf, WLAN_AUTH_SAE);
+	wpabuf_put_le16(buf, 2);
+	wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
+
+	sae_write_confirm(&pasn->sae, buf);
+	pasn->sae.state = SAE_CONFIRMED;
+
+	return buf;
+}
+
+#endif /* CONFIG_SAE */
+
+
+#ifdef CONFIG_FILS
+
+static struct wpabuf * wpas_pasn_fils_build_auth(struct pasn_data *pasn)
+{
+	struct wpabuf *buf = NULL;
+	struct wpabuf *erp_msg;
+	int ret;
+
+	erp_msg = eapol_sm_build_erp_reauth_start(pasn->eapol);
+	if (!erp_msg) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: FILS: ERP EAP-Initiate/Re-auth unavailable");
+		return NULL;
+	}
+
+	if (random_get_bytes(pasn->fils.nonce, FILS_NONCE_LEN) < 0 ||
+	    random_get_bytes(pasn->fils.session, FILS_SESSION_LEN) < 0)
+		goto fail;
+
+	wpa_hexdump(MSG_DEBUG, "PASN: FILS: Nonce", pasn->fils.nonce,
+		    FILS_NONCE_LEN);
+
+	wpa_hexdump(MSG_DEBUG, "PASN: FILS: Session", pasn->fils.session,
+		    FILS_SESSION_LEN);
+
+	buf = wpabuf_alloc(1500);
+	if (!buf)
+		goto fail;
+
+	/* Add the authentication algorithm */
+	wpabuf_put_le16(buf, WLAN_AUTH_FILS_SK);
+
+	/* Authentication Transaction seq# */
+	wpabuf_put_le16(buf, 1);
+
+	/* Status Code */
+	wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
+
+	/* Own RSNE */
+	wpa_pasn_add_rsne(buf, NULL, pasn->akmp, pasn->cipher);
+
+	/* FILS Nonce */
+	wpabuf_put_u8(buf, WLAN_EID_EXTENSION);
+	wpabuf_put_u8(buf, 1 + FILS_NONCE_LEN);
+	wpabuf_put_u8(buf, WLAN_EID_EXT_FILS_NONCE);
+	wpabuf_put_data(buf, pasn->fils.nonce, FILS_NONCE_LEN);
+
+	/* FILS Session */
+	wpabuf_put_u8(buf, WLAN_EID_EXTENSION);
+	wpabuf_put_u8(buf, 1 + FILS_SESSION_LEN);
+	wpabuf_put_u8(buf, WLAN_EID_EXT_FILS_SESSION);
+	wpabuf_put_data(buf, pasn->fils.session, FILS_SESSION_LEN);
+
+	/* Wrapped Data (ERP) */
+	wpabuf_put_u8(buf, WLAN_EID_EXTENSION);
+	wpabuf_put_u8(buf, 1 + wpabuf_len(erp_msg));
+	wpabuf_put_u8(buf, WLAN_EID_EXT_WRAPPED_DATA);
+	wpabuf_put_buf(buf, erp_msg);
+
+	/*
+	 * Calculate pending PMKID here so that we do not need to maintain a
+	 * copy of the EAP-Initiate/Reauth message.
+	 */
+	ret = fils_pmkid_erp(pasn->akmp, wpabuf_head(erp_msg),
+			     wpabuf_len(erp_msg),
+			     pasn->fils.erp_pmkid);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Failed to get ERP PMKID");
+		goto fail;
+	}
+
+	wpabuf_free(erp_msg);
+	erp_msg = NULL;
+
+	wpa_hexdump_buf(MSG_DEBUG, "PASN: FILS: Authentication frame", buf);
+	return buf;
+fail:
+	wpabuf_free(erp_msg);
+	wpabuf_free(buf);
+	return NULL;
+}
+
+
+static struct wpabuf * wpas_pasn_wd_fils_auth(struct pasn_data *pasn)
+{
+	wpa_printf(MSG_DEBUG, "PASN: FILS: wrapped data - completed=%u",
+		   pasn->fils.completed);
+
+	/* Nothing to add as we are done */
+	if (pasn->fils.completed)
+		return NULL;
+
+	if (!pasn->fils_eapol) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: FILS: Missing Indication IE or PFS");
+		return NULL;
+	}
+
+	return wpas_pasn_fils_build_auth(pasn);
+}
+
+
+static int wpas_pasn_wd_fils_rx(struct pasn_data *pasn, struct wpabuf *wd)
+{
+	struct ieee802_11_elems elems;
+	struct wpa_ie_data rsne_data;
+	u8 rmsk[ERP_MAX_KEY_LEN];
+	size_t rmsk_len;
+	u8 anonce[FILS_NONCE_LEN];
+	const u8 *data;
+	size_t buf_len;
+	struct wpabuf *fils_wd = NULL;
+	u16 alg, seq, status;
+	int ret;
+
+	if (!wd)
+		return -1;
+
+	data = wpabuf_head(wd);
+	buf_len = wpabuf_len(wd);
+
+	wpa_hexdump(MSG_DEBUG, "PASN: FILS: Authentication frame len=%zu",
+		    data, buf_len);
+
+	/* first handle the header */
+	if (buf_len < 6) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Buffer too short");
+		return -1;
+	}
+
+	alg = WPA_GET_LE16(data);
+	seq = WPA_GET_LE16(data + 2);
+	status = WPA_GET_LE16(data + 4);
+
+	wpa_printf(MSG_DEBUG, "PASN: FILS: commit: alg=%u, seq=%u, status=%u",
+		   alg, seq, status);
+
+	if (alg != WLAN_AUTH_FILS_SK || seq != 2 ||
+	    status != WLAN_STATUS_SUCCESS) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: FILS: Dropping peer authentication");
+		return -1;
+	}
+
+	data += 6;
+	buf_len -= 6;
+
+	if (ieee802_11_parse_elems(data, buf_len, &elems, 1) == ParseFailed) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Could not parse elements");
+		return -1;
+	}
+
+	if (!elems.rsn_ie || !elems.fils_nonce || !elems.fils_nonce ||
+	    !elems.wrapped_data) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Missing IEs");
+		return -1;
+	}
+
+	ret = wpa_parse_wpa_ie(elems.rsn_ie - 2, elems.rsn_ie_len + 2,
+			       &rsne_data);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Failed parsing RSNE");
+		return -1;
+	}
+
+	ret = wpa_pasn_validate_rsne(&rsne_data);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Failed validating RSNE");
+		return -1;
+	}
+
+	if (rsne_data.num_pmkid) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: FILS: Not expecting PMKID in RSNE");
+		return -1;
+	}
+
+	wpa_hexdump(MSG_DEBUG, "PASN: FILS: ANonce", elems.fils_nonce,
+		    FILS_NONCE_LEN);
+	os_memcpy(anonce, elems.fils_nonce, FILS_NONCE_LEN);
+
+	wpa_hexdump(MSG_DEBUG, "PASN: FILS: FILS Session", elems.fils_session,
+		    FILS_SESSION_LEN);
+
+	if (os_memcmp(pasn->fils.session, elems.fils_session,
+		      FILS_SESSION_LEN)) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Session mismatch");
+		return -1;
+	}
+
+	fils_wd = ieee802_11_defrag(&elems, WLAN_EID_EXTENSION,
+				    WLAN_EID_EXT_WRAPPED_DATA);
+
+	if (!fils_wd) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: FILS: Failed getting wrapped data");
+		return -1;
+	}
+
+	eapol_sm_process_erp_finish(pasn->eapol, wpabuf_head(fils_wd),
+				    wpabuf_len(fils_wd));
+
+	wpabuf_free(fils_wd);
+	fils_wd = NULL;
+
+	if (eapol_sm_failed(pasn->eapol)) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: ERP finish failed");
+		return -1;
+	}
+
+	rmsk_len = ERP_MAX_KEY_LEN;
+	ret = eapol_sm_get_key(pasn->eapol, rmsk, rmsk_len);
+
+	if (ret == PMK_LEN) {
+		rmsk_len = PMK_LEN;
+		ret = eapol_sm_get_key(pasn->eapol, rmsk, rmsk_len);
+	}
+
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Failed getting RMSK");
+		return -1;
+	}
+
+	ret = fils_rmsk_to_pmk(pasn->akmp, rmsk, rmsk_len,
+			       pasn->fils.nonce, anonce, NULL, 0,
+			       pasn->pmk, &pasn->pmk_len);
+
+	forced_memzero(rmsk, sizeof(rmsk));
+
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Failed to derive PMK");
+		return -1;
+	}
+
+	wpa_hexdump(MSG_DEBUG, "PASN: FILS: PMKID", pasn->fils.erp_pmkid,
+		    PMKID_LEN);
+
+	wpa_printf(MSG_DEBUG, "PASN: FILS: ERP processing succeeded");
+
+	pasn->pmksa_entry = pmksa_cache_add(pasn->pmksa, pasn->pmk,
+					    pasn->pmk_len, pasn->fils.erp_pmkid,
+					    NULL, 0, pasn->peer_addr,
+					    pasn->own_addr, NULL,
+					    pasn->akmp, 0);
+
+	pasn->fils.completed = true;
+	return 0;
+}
+
+#endif /* CONFIG_FILS */
+
+
+static struct wpabuf * wpas_pasn_get_wrapped_data(struct pasn_data *pasn)
+{
+	if (pasn->using_pmksa)
+		return NULL;
+
+	switch (pasn->akmp) {
+	case WPA_KEY_MGMT_PASN:
+		/* no wrapped data */
+		return NULL;
+	case WPA_KEY_MGMT_SAE:
+#ifdef CONFIG_SAE
+		if (pasn->trans_seq == 0)
+			return wpas_pasn_wd_sae_commit(pasn);
+		if (pasn->trans_seq == 2)
+			return wpas_pasn_wd_sae_confirm(pasn);
+#endif /* CONFIG_SAE */
+		wpa_printf(MSG_ERROR,
+			   "PASN: SAE: Cannot derive wrapped data");
+		return NULL;
+	case WPA_KEY_MGMT_FILS_SHA256:
+	case WPA_KEY_MGMT_FILS_SHA384:
+#ifdef CONFIG_FILS
+		return wpas_pasn_wd_fils_auth(pasn);
+#endif /* CONFIG_FILS */
+	case WPA_KEY_MGMT_FT_PSK:
+	case WPA_KEY_MGMT_FT_IEEE8021X:
+	case WPA_KEY_MGMT_FT_IEEE8021X_SHA384:
+		/*
+		 * Wrapped data with these AKMs is optional and is only needed
+		 * for further validation of FT security parameters. For now do
+		 * not use them.
+		 */
+		return NULL;
+	default:
+		wpa_printf(MSG_ERROR,
+			   "PASN: TODO: Wrapped data for akmp=0x%x",
+			   pasn->akmp);
+		return NULL;
+	}
+}
+
+
+static u8 wpas_pasn_get_wrapped_data_format(struct pasn_data *pasn)
+{
+	if (pasn->using_pmksa)
+		return WPA_PASN_WRAPPED_DATA_NO;
+
+	/* Note: Valid AKMP is expected to already be validated */
+	switch (pasn->akmp) {
+	case WPA_KEY_MGMT_SAE:
+		return WPA_PASN_WRAPPED_DATA_SAE;
+	case WPA_KEY_MGMT_FILS_SHA256:
+	case WPA_KEY_MGMT_FILS_SHA384:
+		return WPA_PASN_WRAPPED_DATA_FILS_SK;
+	case WPA_KEY_MGMT_FT_PSK:
+	case WPA_KEY_MGMT_FT_IEEE8021X:
+	case WPA_KEY_MGMT_FT_IEEE8021X_SHA384:
+		/*
+		 * Wrapped data with these AKMs is optional and is only needed
+		 * for further validation of FT security parameters. For now do
+		 * not use them.
+		 */
+		return WPA_PASN_WRAPPED_DATA_NO;
+	case WPA_KEY_MGMT_PASN:
+	default:
+		return WPA_PASN_WRAPPED_DATA_NO;
+	}
+}
+
+
+static struct wpabuf * wpas_pasn_build_auth_1(struct pasn_data *pasn,
+					      const struct wpabuf *comeback,
+					      bool verify)
+{
+	struct wpabuf *buf, *pubkey = NULL, *wrapped_data_buf = NULL;
+	const u8 *pmkid;
+	u8 wrapped_data;
+	int ret;
+
+	wpa_printf(MSG_DEBUG, "PASN: Building frame 1");
+
+	if (pasn->trans_seq)
+		return NULL;
+
+	buf = wpabuf_alloc(1500);
+	if (!buf)
+		goto fail;
+
+	/* Get public key */
+	pubkey = crypto_ecdh_get_pubkey(pasn->ecdh, 0);
+	pubkey = wpabuf_zeropad(pubkey, crypto_ecdh_prime_len(pasn->ecdh));
+	if (!pubkey) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to get pubkey");
+		goto fail;
+	}
+
+	wrapped_data = wpas_pasn_get_wrapped_data_format(pasn);
+
+	wpa_pasn_build_auth_header(buf, pasn->bssid,
+				   pasn->own_addr, pasn->peer_addr,
+				   pasn->trans_seq + 1, WLAN_STATUS_SUCCESS);
+
+	pmkid = NULL;
+	if (wpa_key_mgmt_ft(pasn->akmp)) {
+#ifdef CONFIG_IEEE80211R
+		pmkid = pasn->pmk_r1_name;
+#else /* CONFIG_IEEE80211R */
+		goto fail;
+#endif /* CONFIG_IEEE80211R */
+	} else if (wrapped_data != WPA_PASN_WRAPPED_DATA_NO) {
+		struct rsn_pmksa_cache_entry *pmksa;
+
+		pmksa = pmksa_cache_get(pasn->pmksa, pasn->peer_addr,
+					pasn->own_addr, NULL, NULL, pasn->akmp);
+		if (pmksa && pasn->custom_pmkid_valid)
+			pmkid = pasn->custom_pmkid;
+		else if (pmksa)
+			pmkid = pmksa->pmkid;
+
+		/*
+		 * Note: Even when PMKSA is available, also add wrapped data as
+		 * it is possible that the PMKID is no longer valid at the AP.
+		 */
+		if (!verify)
+			wrapped_data_buf = wpas_pasn_get_wrapped_data(pasn);
+	}
+
+	if (wpa_pasn_add_rsne(buf, pmkid, pasn->akmp, pasn->cipher) < 0)
+		goto fail;
+
+	if (!wrapped_data_buf)
+		wrapped_data = WPA_PASN_WRAPPED_DATA_NO;
+
+	wpa_pasn_add_parameter_ie(buf, pasn->group, wrapped_data,
+				  pubkey, true, comeback, -1);
+
+	if (wpa_pasn_add_wrapped_data(buf, wrapped_data_buf) < 0)
+		goto fail;
+
+	wpa_pasn_add_rsnxe(buf, pasn->rsnxe_capab);
+
+	wpa_pasn_add_extra_ies(buf, pasn->extra_ies, pasn->extra_ies_len);
+
+	ret = pasn_auth_frame_hash(pasn->akmp, pasn->cipher,
+				   wpabuf_head_u8(buf) + IEEE80211_HDRLEN,
+				   wpabuf_len(buf) - IEEE80211_HDRLEN,
+				   pasn->hash);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to compute hash");
+		goto fail;
+	}
+
+	pasn->trans_seq++;
+
+	wpabuf_free(wrapped_data_buf);
+	wpabuf_free(pubkey);
+
+	wpa_printf(MSG_DEBUG, "PASN: Frame 1: Success");
+	return buf;
+fail:
+	pasn->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+	wpabuf_free(wrapped_data_buf);
+	wpabuf_free(pubkey);
+	wpabuf_free(buf);
+	return NULL;
+}
+
+
+static struct wpabuf * wpas_pasn_build_auth_3(struct pasn_data *pasn)
+{
+	struct wpabuf *buf, *wrapped_data_buf = NULL;
+	u8 mic[WPA_PASN_MAX_MIC_LEN];
+	u8 mic_len, data_len;
+	const u8 *data;
+	u8 *ptr;
+	u8 wrapped_data;
+	int ret;
+
+	wpa_printf(MSG_DEBUG, "PASN: Building frame 3");
+
+	if (pasn->trans_seq != 2)
+		return NULL;
+
+	buf = wpabuf_alloc(1500);
+	if (!buf)
+		goto fail;
+
+	wrapped_data = wpas_pasn_get_wrapped_data_format(pasn);
+
+	wpa_pasn_build_auth_header(buf, pasn->bssid,
+				   pasn->own_addr, pasn->peer_addr,
+				   pasn->trans_seq + 1, WLAN_STATUS_SUCCESS);
+
+	wrapped_data_buf = wpas_pasn_get_wrapped_data(pasn);
+
+	if (!wrapped_data_buf)
+		wrapped_data = WPA_PASN_WRAPPED_DATA_NO;
+
+	wpa_pasn_add_parameter_ie(buf, pasn->group, wrapped_data,
+				  NULL, false, NULL, -1);
+
+	if (wpa_pasn_add_wrapped_data(buf, wrapped_data_buf) < 0)
+		goto fail;
+	wpabuf_free(wrapped_data_buf);
+	wrapped_data_buf = NULL;
+
+	/* Add the MIC */
+	mic_len = pasn_mic_len(pasn->akmp, pasn->cipher);
+	wpabuf_put_u8(buf, WLAN_EID_MIC);
+	wpabuf_put_u8(buf, mic_len);
+	ptr = wpabuf_put(buf, mic_len);
+
+	os_memset(ptr, 0, mic_len);
+
+	data = wpabuf_head_u8(buf) + IEEE80211_HDRLEN;
+	data_len = wpabuf_len(buf) - IEEE80211_HDRLEN;
+
+	ret = pasn_mic(pasn->ptk.kck, pasn->akmp, pasn->cipher,
+		       pasn->own_addr, pasn->peer_addr,
+		       pasn->hash, mic_len * 2, data, data_len, mic);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: frame 3: Failed MIC calculation");
+		goto fail;
+	}
+
+#ifdef CONFIG_TESTING_OPTIONS
+	if (pasn->corrupt_mic) {
+		wpa_printf(MSG_DEBUG, "PASN: frame 3: Corrupt MIC");
+		mic[0] = ~mic[0];
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
+
+	os_memcpy(ptr, mic, mic_len);
+
+	pasn->trans_seq++;
+
+	wpa_printf(MSG_DEBUG, "PASN: frame 3: Success");
+	return buf;
+fail:
+	pasn->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+	wpabuf_free(wrapped_data_buf);
+	wpabuf_free(buf);
+	return NULL;
+}
+
+
+void wpa_pasn_reset(struct pasn_data *pasn)
+{
+	wpa_printf(MSG_DEBUG, "PASN: Reset");
+
+	crypto_ecdh_deinit(pasn->ecdh);
+	pasn->ecdh = NULL;
+
+
+	pasn->akmp = 0;
+	pasn->cipher = 0;
+	pasn->group = 0;
+	pasn->trans_seq = 0;
+	pasn->pmk_len = 0;
+	pasn->using_pmksa = false;
+
+	forced_memzero(pasn->pmk, sizeof(pasn->pmk));
+	forced_memzero(&pasn->ptk, sizeof(pasn->ptk));
+	forced_memzero(&pasn->hash, sizeof(pasn->hash));
+
+	wpabuf_free(pasn->beacon_rsne_rsnxe);
+	pasn->beacon_rsne_rsnxe = NULL;
+
+	wpabuf_free(pasn->comeback);
+	pasn->comeback = NULL;
+	pasn->comeback_after = 0;
+
+#ifdef CONFIG_SAE
+	sae_clear_data(&pasn->sae);
+	if (pasn->pt) {
+		sae_deinit_pt(pasn->pt);
+		pasn->pt = NULL;
+	}
+#endif /* CONFIG_SAE */
+
+#ifdef CONFIG_FILS
+	pasn->fils_eapol = false;
+	os_memset(&pasn->fils, 0, sizeof(pasn->fils));
+#endif /* CONFIG_FILS*/
+
+#ifdef CONFIG_IEEE80211R
+	forced_memzero(pasn->pmk_r1, sizeof(pasn->pmk_r1));
+	pasn->pmk_r1_len = 0;
+	os_memset(pasn->pmk_r1_name, 0, sizeof(pasn->pmk_r1_name));
+#endif /* CONFIG_IEEE80211R */
+	pasn->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+	pasn->pmksa_entry = NULL;
+#ifdef CONFIG_TESTING_OPTIONS
+	pasn->corrupt_mic = 0;
+#endif /* CONFIG_TESTING_OPTIONS */
+	pasn->network_id = 0;
+	pasn->derive_kdk = false;
+	pasn->rsn_ie = NULL;
+	pasn->rsn_ie_len = 0;
+	pasn->rsnxe_ie = NULL;
+	pasn->custom_pmkid_valid = false;
+}
+
+
+static int wpas_pasn_set_pmk(struct pasn_data *pasn,
+			     struct wpa_ie_data *rsn_data,
+			     struct wpa_pasn_params_data *pasn_data,
+			     struct wpabuf *wrapped_data)
+{
+	static const u8 pasn_default_pmk[] = {'P', 'M', 'K', 'z'};
+
+	os_memset(pasn->pmk, 0, sizeof(pasn->pmk));
+	pasn->pmk_len = 0;
+
+	if (pasn->akmp == WPA_KEY_MGMT_PASN) {
+		wpa_printf(MSG_DEBUG, "PASN: Using default PMK");
+
+		pasn->pmk_len = WPA_PASN_PMK_LEN;
+		os_memcpy(pasn->pmk, pasn_default_pmk,
+			  sizeof(pasn_default_pmk));
+		return 0;
+	}
+
+	if (wpa_key_mgmt_ft(pasn->akmp)) {
+#ifdef CONFIG_IEEE80211R
+		wpa_printf(MSG_DEBUG, "PASN: FT: Using PMK-R1");
+		pasn->pmk_len = pasn->pmk_r1_len;
+		os_memcpy(pasn->pmk, pasn->pmk_r1, pasn->pmk_r1_len);
+		pasn->using_pmksa = true;
+		return 0;
+#else /* CONFIG_IEEE80211R */
+		wpa_printf(MSG_DEBUG, "PASN: FT: Not supported");
+		return -1;
+#endif /* CONFIG_IEEE80211R */
+	}
+
+	if (rsn_data->num_pmkid) {
+		int ret;
+		struct rsn_pmksa_cache_entry *pmksa;
+		const u8 *pmkid = NULL;
+
+		if (pasn->custom_pmkid_valid) {
+			ret = pasn->validate_custom_pmkid(pasn->cb_ctx,
+							  pasn->peer_addr,
+							  rsn_data->pmkid);
+			if (ret) {
+				wpa_printf(MSG_DEBUG,
+					   "PASN: Failed custom PMKID validation");
+				return -1;
+			}
+		} else {
+			pmkid = rsn_data->pmkid;
+		}
+
+		pmksa = pmksa_cache_get(pasn->pmksa, pasn->peer_addr,
+					pasn->own_addr,
+					pmkid, NULL, pasn->akmp);
+		if (pmksa) {
+			wpa_printf(MSG_DEBUG, "PASN: Using PMKSA");
+
+			pasn->pmk_len = pmksa->pmk_len;
+			os_memcpy(pasn->pmk, pmksa->pmk, pmksa->pmk_len);
+			pasn->using_pmksa = true;
+
+			return 0;
+		}
+	}
+
+#ifdef CONFIG_SAE
+	if (pasn->akmp == WPA_KEY_MGMT_SAE) {
+		int ret;
+
+		ret = wpas_pasn_wd_sae_rx(pasn, wrapped_data);
+		if (ret) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Failed processing SAE wrapped data");
+			pasn->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+			return -1;
+		}
+
+		wpa_printf(MSG_DEBUG, "PASN: Success deriving PMK with SAE");
+		pasn->pmk_len = PMK_LEN;
+		os_memcpy(pasn->pmk, pasn->sae.pmk, PMK_LEN);
+
+		pasn->pmksa_entry = pmksa_cache_add(pasn->pmksa, pasn->pmk,
+						    pasn->pmk_len,
+						    pasn->sae.pmkid,
+						    NULL, 0, pasn->peer_addr,
+						    pasn->own_addr, NULL,
+						    pasn->akmp, 0);
+		return 0;
+	}
+#endif /* CONFIG_SAE */
+
+#ifdef CONFIG_FILS
+	if (pasn->akmp == WPA_KEY_MGMT_FILS_SHA256 ||
+	    pasn->akmp == WPA_KEY_MGMT_FILS_SHA384) {
+		int ret;
+
+		ret = wpas_pasn_wd_fils_rx(pasn, wrapped_data);
+		if (ret) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Failed processing FILS wrapped data");
+			pasn->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+			return -1;
+		}
+
+		return 0;
+	}
+#endif	/* CONFIG_FILS */
+
+	/* TODO: Derive PMK based on wrapped data */
+	wpa_printf(MSG_DEBUG, "PASN: Missing implementation to derive PMK");
+	pasn->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+	return -1;
+}
+
+
+static int wpas_pasn_send_auth_1(struct pasn_data *pasn, const u8 *own_addr,
+				 const u8 *peer_addr, const u8 *bssid, int akmp,
+				 int cipher, u16 group, int freq,
+				 const u8 *beacon_rsne, u8 beacon_rsne_len,
+				 const u8 *beacon_rsnxe, u8 beacon_rsnxe_len,
+				 const struct wpabuf *comeback, bool verify)
+{
+	struct wpabuf *frame;
+	int ret;
+
+	pasn->ecdh = crypto_ecdh_init(group);
+	if (!pasn->ecdh) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to init ECDH");
+		goto fail;
+	}
+
+	if (beacon_rsne && beacon_rsne_len) {
+		pasn->beacon_rsne_rsnxe = wpabuf_alloc(beacon_rsne_len +
+						       beacon_rsnxe_len);
+		if (!pasn->beacon_rsne_rsnxe) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Failed storing beacon RSNE/RSNXE");
+			goto fail;
+		}
+
+		wpabuf_put_data(pasn->beacon_rsne_rsnxe, beacon_rsne,
+				beacon_rsne_len);
+		if (beacon_rsnxe && beacon_rsnxe_len)
+			wpabuf_put_data(pasn->beacon_rsne_rsnxe, beacon_rsnxe,
+					beacon_rsnxe_len);
+	}
+
+	pasn->akmp = akmp;
+	pasn->cipher = cipher;
+	pasn->group = group;
+	pasn->freq = freq;
+
+	os_memcpy(pasn->own_addr, own_addr, ETH_ALEN);
+	os_memcpy(pasn->peer_addr, peer_addr, ETH_ALEN);
+	os_memcpy(pasn->bssid, bssid, ETH_ALEN);
+
+	wpa_printf(MSG_DEBUG,
+		   "PASN: Init%s: " MACSTR " akmp=0x%x, cipher=0x%x, group=%u",
+		   verify ? " (verify)" : "",
+		   MAC2STR(pasn->peer_addr), pasn->akmp, pasn->cipher,
+		   pasn->group);
+
+	frame = wpas_pasn_build_auth_1(pasn, comeback, verify);
+	if (!frame) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed building 1st auth frame");
+		goto fail;
+	}
+
+	ret = pasn->send_mgmt(pasn->cb_ctx,
+			      wpabuf_head(frame), wpabuf_len(frame), 0,
+			      pasn->freq, 1000);
+
+	wpabuf_free(frame);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed sending 1st auth frame");
+		goto fail;
+	}
+
+	return 0;
+
+fail:
+	return -1;
+}
+
+
+int wpas_pasn_start(struct pasn_data *pasn, const u8 *own_addr,
+		    const u8 *peer_addr, const u8 *bssid,
+		    int akmp, int cipher, u16 group,
+		    int freq, const u8 *beacon_rsne, u8 beacon_rsne_len,
+		    const u8 *beacon_rsnxe, u8 beacon_rsnxe_len,
+		    const struct wpabuf *comeback)
+{
+	/* TODO: Currently support only ECC groups */
+	if (!dragonfly_suitable_group(group, 1)) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Reject unsuitable group %u", group);
+		return -1;
+	}
+
+	switch (akmp) {
+	case WPA_KEY_MGMT_PASN:
+		break;
+#ifdef CONFIG_SAE
+	case WPA_KEY_MGMT_SAE:
+
+		if (beacon_rsnxe &&
+		    !ieee802_11_rsnx_capab(beacon_rsnxe,
+					   WLAN_RSNX_CAPAB_SAE_H2E)) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: AP does not support SAE H2E");
+			return -1;
+		}
+
+		pasn->sae.state = SAE_NOTHING;
+		pasn->sae.send_confirm = 0;
+		break;
+#endif /* CONFIG_SAE */
+#ifdef CONFIG_FILS
+	case WPA_KEY_MGMT_FILS_SHA256:
+	case WPA_KEY_MGMT_FILS_SHA384:
+		break;
+#endif /* CONFIG_FILS */
+#ifdef CONFIG_IEEE80211R
+	case WPA_KEY_MGMT_FT_PSK:
+	case WPA_KEY_MGMT_FT_IEEE8021X:
+	case WPA_KEY_MGMT_FT_IEEE8021X_SHA384:
+		break;
+#endif /* CONFIG_IEEE80211R */
+	default:
+		wpa_printf(MSG_ERROR, "PASN: Unsupported AKMP=0x%x", akmp);
+		return -1;
+	}
+
+	return wpas_pasn_send_auth_1(pasn, own_addr, peer_addr, bssid, akmp,
+				     cipher, group,
+				     freq, beacon_rsne, beacon_rsne_len,
+				     beacon_rsnxe, beacon_rsnxe_len, comeback,
+				     false);
+}
+
+/*
+ * Wi-Fi Aware uses PASN handshake to authenticate peer devices.
+ * Devices can simply verify each other for subsequent sessions using
+ * pairing verification procedure.
+ *
+ * In pairing verification, Wi-Fi aware devices use PASN authentication
+ * frames with a custom PMKID and Wi-Fi Aware R4 specific verification IEs.
+ * It does not use wrapped data in the Authentication frames. This function
+ * provides support to construct PASN Authentication frames for pairing
+ * verification.
+ */
+int wpa_pasn_verify(struct pasn_data *pasn, const u8 *own_addr,
+		    const u8 *peer_addr, const u8 *bssid,
+		    int akmp, int cipher, u16 group,
+		    int freq, const u8 *beacon_rsne, u8 beacon_rsne_len,
+		    const u8 *beacon_rsnxe, u8 beacon_rsnxe_len,
+		    const struct wpabuf *comeback)
+{
+	return wpas_pasn_send_auth_1(pasn, own_addr, peer_addr, bssid, akmp,
+				     cipher, group, freq, beacon_rsne,
+				     beacon_rsne_len, beacon_rsnxe,
+				     beacon_rsnxe_len, comeback, true);
+}
+
+
+static bool is_pasn_auth_frame(struct pasn_data *pasn,
+			       const struct ieee80211_mgmt *mgmt,
+			       size_t len, bool rx)
+{
+	u16 fc;
+
+	if (!mgmt || len < offsetof(struct ieee80211_mgmt, u.auth.variable))
+		return false;
+
+	/* Not an Authentication frame; do nothing */
+	fc = le_to_host16(mgmt->frame_control);
+	if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
+	    WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_AUTH)
+		return false;
+
+	/* Not our frame; do nothing */
+	if (os_memcmp(mgmt->bssid, pasn->bssid, ETH_ALEN) != 0)
+		return false;
+
+	if (rx && (os_memcmp(mgmt->da, pasn->own_addr, ETH_ALEN) != 0 ||
+		   os_memcmp(mgmt->sa, pasn->peer_addr, ETH_ALEN) != 0))
+		return false;
+
+	if (!rx && (os_memcmp(mgmt->sa, pasn->own_addr, ETH_ALEN) != 0 ||
+		    os_memcmp(mgmt->da, pasn->peer_addr, ETH_ALEN) != 0))
+		return false;
+
+	/* Not PASN; do nothing */
+	if (mgmt->u.auth.auth_alg != host_to_le16(WLAN_AUTH_PASN))
+		return false;
+
+	return true;
+}
+
+
+int wpa_pasn_auth_rx(struct pasn_data *pasn, const u8 *data, size_t len,
+		     struct wpa_pasn_params_data *pasn_params)
+
+{
+	struct ieee802_11_elems elems;
+	struct wpa_ie_data rsn_data;
+	const struct ieee80211_mgmt *mgmt =
+		(const struct ieee80211_mgmt *) data;
+	struct wpabuf *wrapped_data = NULL, *secret = NULL, *frame = NULL;
+	u8 mic[WPA_PASN_MAX_MIC_LEN], out_mic[WPA_PASN_MAX_MIC_LEN];
+	u8 mic_len;
+	u16 status;
+	int ret, inc_y;
+	u8 *copy = NULL;
+	size_t mic_offset, copy_len;
+
+	if (!is_pasn_auth_frame(pasn, mgmt, len, true))
+		return -2;
+
+	if (mgmt->u.auth.auth_transaction !=
+	    host_to_le16(pasn->trans_seq + 1)) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: RX: Invalid transaction sequence: (%u != %u)",
+			   le_to_host16(mgmt->u.auth.auth_transaction),
+			   pasn->trans_seq + 1);
+		return -3;
+	}
+
+	status = le_to_host16(mgmt->u.auth.status_code);
+
+	if (status != WLAN_STATUS_SUCCESS &&
+	    status != WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Authentication rejected - status=%u", status);
+		goto fail;
+	}
+
+	if (ieee802_11_parse_elems(mgmt->u.auth.variable,
+				   len - offsetof(struct ieee80211_mgmt,
+						  u.auth.variable),
+				   &elems, 0) == ParseFailed) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Failed parsing Authentication frame");
+		goto fail;
+	}
+
+	/* Check that the MIC IE exists. Save it and zero out the memory */
+	mic_len = pasn_mic_len(pasn->akmp, pasn->cipher);
+	if (status == WLAN_STATUS_SUCCESS) {
+		if (!elems.mic || elems.mic_len != mic_len) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Invalid MIC. Expecting len=%u",
+				   mic_len);
+			goto fail;
+		}
+		os_memcpy(mic, elems.mic, mic_len);
+	}
+
+	if (!elems.pasn_params || !elems.pasn_params_len) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Missing PASN Parameters IE");
+		goto fail;
+	}
+
+	if (!pasn_params) {
+		wpa_printf(MSG_DEBUG, "PASN: pasn_params == NULL");
+		goto fail;
+	}
+
+	ret = wpa_pasn_parse_parameter_ie(elems.pasn_params - 3,
+					  elems.pasn_params_len + 3,
+					  true, pasn_params);
+	if (ret) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Failed validation PASN of Parameters IE");
+		goto fail;
+	}
+
+	if (status == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Authentication temporarily rejected");
+
+		if (pasn_params->comeback && pasn_params->comeback_len) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Comeback token available. After=%u",
+				   pasn_params->after);
+
+			if (!pasn_params->after)
+				return 1;
+
+			pasn->comeback = wpabuf_alloc_copy(
+				pasn_params->comeback,
+				pasn_params->comeback_len);
+			if (pasn->comeback)
+				pasn->comeback_after = pasn_params->after;
+		}
+
+		pasn->status = status;
+		goto fail;
+	}
+
+	if (!elems.rsn_ie) {
+		wpa_printf(MSG_DEBUG, "PASN: Missing RSNE");
+		goto fail;
+	}
+
+	ret = wpa_parse_wpa_ie(elems.rsn_ie - 2, elems.rsn_ie_len + 2,
+			       &rsn_data);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed parsing RSNE");
+		goto fail;
+	}
+
+	ret = wpa_pasn_validate_rsne(&rsn_data);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed validating RSNE");
+		goto fail;
+	}
+
+	if (pasn->akmp != rsn_data.key_mgmt ||
+	    pasn->cipher != rsn_data.pairwise_cipher) {
+		wpa_printf(MSG_DEBUG, "PASN: Mismatch in AKMP/cipher");
+		goto fail;
+	}
+
+	if (pasn->group != pasn_params->group) {
+		wpa_printf(MSG_DEBUG, "PASN: Mismatch in group");
+		goto fail;
+	}
+
+	if (!pasn_params->pubkey || !pasn_params->pubkey_len) {
+		wpa_printf(MSG_DEBUG, "PASN: Invalid public key");
+		goto fail;
+	}
+
+	if (pasn_params->pubkey[0] == WPA_PASN_PUBKEY_UNCOMPRESSED) {
+		inc_y = 1;
+	} else if (pasn_params->pubkey[0] == WPA_PASN_PUBKEY_COMPRESSED_0 ||
+		   pasn_params->pubkey[0] == WPA_PASN_PUBKEY_COMPRESSED_1) {
+		inc_y = 0;
+	} else {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Invalid first octet in pubkey=0x%x",
+			   pasn_params->pubkey[0]);
+		goto fail;
+	}
+
+	secret = crypto_ecdh_set_peerkey(pasn->ecdh, inc_y,
+					 pasn_params->pubkey + 1,
+					 pasn_params->pubkey_len - 1);
+
+	if (!secret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to derive shared secret");
+		goto fail;
+	}
+
+	if (pasn_params->wrapped_data_format != WPA_PASN_WRAPPED_DATA_NO) {
+		wrapped_data = ieee802_11_defrag(&elems,
+						 WLAN_EID_EXTENSION,
+						 WLAN_EID_EXT_WRAPPED_DATA);
+
+		if (!wrapped_data) {
+			wpa_printf(MSG_DEBUG, "PASN: Missing wrapped data");
+			goto fail;
+		}
+	}
+
+	ret = wpas_pasn_set_pmk(pasn, &rsn_data, pasn_params, wrapped_data);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to set PMK");
+		goto fail;
+	}
+
+	ret = pasn_pmk_to_ptk(pasn->pmk, pasn->pmk_len,
+			      pasn->own_addr, pasn->peer_addr,
+			      wpabuf_head(secret), wpabuf_len(secret),
+			      &pasn->ptk, pasn->akmp, pasn->cipher,
+			      pasn->kdk_len);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to derive PTK");
+		goto fail;
+	}
+
+	if (pasn->secure_ltf) {
+		ret = wpa_ltf_keyseed(&pasn->ptk, pasn->akmp, pasn->cipher);
+		if (ret) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Failed to derive LTF keyseed");
+			goto fail;
+		}
+	}
+
+	wpabuf_free(wrapped_data);
+	wrapped_data = NULL;
+	wpabuf_free(secret);
+	secret = NULL;
+
+	/* Use a copy of the message since we need to clear the MIC field */
+	if (!elems.mic)
+		goto fail;
+	mic_offset = elems.mic - (const u8 *) &mgmt->u.auth;
+	copy_len = len - offsetof(struct ieee80211_mgmt, u.auth);
+	if (mic_offset + mic_len > copy_len)
+		goto fail;
+	copy = os_memdup(&mgmt->u.auth, copy_len);
+	if (!copy)
+		goto fail;
+	os_memset(copy + mic_offset, 0, mic_len);
+
+	if (pasn->beacon_rsne_rsnxe) {
+		/* Verify the MIC */
+		ret = pasn_mic(pasn->ptk.kck, pasn->akmp, pasn->cipher,
+			       pasn->peer_addr, pasn->own_addr,
+			       wpabuf_head(pasn->beacon_rsne_rsnxe),
+			       wpabuf_len(pasn->beacon_rsne_rsnxe),
+			       copy, copy_len, out_mic);
+	} else {
+		u8 *rsne_rsnxe;
+		size_t rsne_rsnxe_len = 0;
+
+		/*
+		 * Note: When Beacon rsne_rsnxe is not initialized, it is likely
+		 * that this is for Wi-Fi Aware using PASN handshake for which
+		 * Beacon RSNE/RSNXE are same as RSNE/RSNXE in the
+		 * Authentication frame
+		 */
+		if (elems.rsn_ie && elems.rsn_ie_len)
+			rsne_rsnxe_len += elems.rsn_ie_len + 2;
+		if (elems.rsnxe && elems.rsnxe_len)
+			rsne_rsnxe_len += elems.rsnxe_len + 2;
+
+		rsne_rsnxe = os_zalloc(rsne_rsnxe_len);
+		if (!rsne_rsnxe)
+			goto fail;
+
+		if (elems.rsn_ie && elems.rsn_ie_len)
+			os_memcpy(rsne_rsnxe, elems.rsn_ie - 2,
+				  elems.rsn_ie_len + 2);
+		if (elems.rsnxe && elems.rsnxe_len)
+			os_memcpy(rsne_rsnxe + elems.rsn_ie_len + 2,
+				  elems.rsnxe - 2, elems.rsnxe_len + 2);
+
+		wpa_hexdump_key(MSG_DEBUG, "PASN: RSN + RSNXE buf",
+				rsne_rsnxe, rsne_rsnxe_len);
+
+		/* Verify the MIC */
+		ret = pasn_mic(pasn->ptk.kck, pasn->akmp, pasn->cipher,
+			       pasn->peer_addr, pasn->own_addr,
+			       rsne_rsnxe,
+			       rsne_rsnxe_len,
+			       copy, copy_len, out_mic);
+
+		os_free(rsne_rsnxe);
+	}
+	os_free(copy);
+	copy = NULL;
+
+	wpa_hexdump_key(MSG_DEBUG, "PASN: Frame MIC", mic, mic_len);
+	if (ret || os_memcmp(mic, out_mic, mic_len) != 0) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed MIC verification");
+		goto fail;
+	}
+
+	pasn->trans_seq++;
+
+	wpa_printf(MSG_DEBUG, "PASN: Success verifying Authentication frame");
+
+	frame = wpas_pasn_build_auth_3(pasn);
+	if (!frame) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed building 3rd auth frame");
+		goto fail;
+	}
+
+	ret = pasn->send_mgmt(pasn->cb_ctx,
+			      wpabuf_head(frame), wpabuf_len(frame), 0,
+			      pasn->freq, 100);
+	wpabuf_free(frame);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed sending 3st auth frame");
+		goto fail;
+	}
+
+	wpa_printf(MSG_DEBUG, "PASN: Success sending last frame. Store PTK");
+
+	pasn->status = WLAN_STATUS_SUCCESS;
+
+	return 0;
+fail:
+	wpa_printf(MSG_DEBUG, "PASN: Failed RX processing - terminating");
+	wpabuf_free(wrapped_data);
+	wpabuf_free(secret);
+	os_free(copy);
+
+	/*
+	 * TODO: In case of an error the standard allows to silently drop
+	 * the frame and terminate the authentication exchange. However, better
+	 * reply to the AP with an error status.
+	 */
+	if (status == WLAN_STATUS_SUCCESS)
+		pasn->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+	else
+		pasn->status = status;
+
+	return -1;
+}
+
+
+int wpa_pasn_auth_tx_status(struct pasn_data *pasn,
+			    const u8 *data, size_t data_len, u8 acked)
+
+{
+	const struct ieee80211_mgmt *mgmt =
+		(const struct ieee80211_mgmt *) data;
+
+	wpa_printf(MSG_DEBUG, "PASN: auth_tx_status: acked=%u", acked);
+
+	if (!is_pasn_auth_frame(pasn, mgmt, data_len, false))
+		return -1;
+
+	if (mgmt->u.auth.auth_transaction != host_to_le16(pasn->trans_seq)) {
+		wpa_printf(MSG_ERROR,
+			   "PASN: Invalid transaction sequence: (%u != %u)",
+			   pasn->trans_seq,
+			   le_to_host16(mgmt->u.auth.auth_transaction));
+		return 0;
+	}
+
+	wpa_printf(MSG_ERROR,
+		   "PASN: auth with trans_seq=%u, acked=%u", pasn->trans_seq,
+		   acked);
+
+	/*
+	 * Even if the frame was not acked, do not treat this is an error, and
+	 * try to complete the flow, relying on the PASN timeout callback to
+	 * clean up.
+	 */
+	if (pasn->trans_seq == 3) {
+		wpa_printf(MSG_DEBUG, "PASN: auth complete with: " MACSTR,
+			   MAC2STR(pasn->peer_addr));
+		/*
+		 * Either frame was not ACKed or it was ACKed but the trans_seq
+		 * != 1, i.e., not expecting an RX frame, so we are done.
+		 */
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/src/pasn/pasn_responder.c b/src/pasn/pasn_responder.c
new file mode 100644
index 0000000..3b1912d
--- /dev/null
+++ b/src/pasn/pasn_responder.c
@@ -0,0 +1,1016 @@
+/*
+ * PASN responder processing
+ *
+ * Copyright (C) 2019, Intel Corporation
+ * Copyright (C) 2022, Qualcomm Innovation Center, Inc.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "common/wpa_common.h"
+#include "common/sae.h"
+#include "common/ieee802_11_common.h"
+#include "common/ieee802_11_defs.h"
+#include "crypto/sha384.h"
+#include "crypto/sha256.h"
+#include "crypto/random.h"
+#include "crypto/crypto.h"
+#include "ap/hostapd.h"
+#include "ap/comeback_token.h"
+#include "ap/ieee802_1x.h"
+#include "ap/pmksa_cache_auth.h"
+#include "pasn_common.h"
+
+#ifdef CONFIG_PASN
+#ifdef CONFIG_SAE
+
+static int pasn_wd_handle_sae_commit(struct pasn_data *pasn,
+				     const u8 *own_addr, const u8 *peer_addr,
+				     struct wpabuf *wd)
+{
+	const u8 *data;
+	size_t buf_len;
+	u16 res, alg, seq, status;
+	int groups[] = { pasn->group, 0 };
+	int ret;
+
+	if (!wd)
+		return -1;
+
+	data = wpabuf_head_u8(wd);
+	buf_len = wpabuf_len(wd);
+
+	if (buf_len < 6) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE buffer too short. len=%zu",
+			   buf_len);
+		return -1;
+	}
+
+	alg = WPA_GET_LE16(data);
+	seq = WPA_GET_LE16(data + 2);
+	status = WPA_GET_LE16(data + 4);
+
+	wpa_printf(MSG_DEBUG, "PASN: SAE commit: alg=%u, seq=%u, status=%u",
+		   alg, seq, status);
+
+	if (alg != WLAN_AUTH_SAE || seq != 1 ||
+	    status != WLAN_STATUS_SAE_HASH_TO_ELEMENT) {
+		wpa_printf(MSG_DEBUG, "PASN: Dropping peer SAE commit");
+		return -1;
+	}
+
+	sae_clear_data(&pasn->sae);
+	pasn->sae.state = SAE_NOTHING;
+
+	ret = sae_set_group(&pasn->sae, pasn->group);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to set SAE group");
+		return -1;
+	}
+
+	if (!pasn->password || !pasn->pt) {
+		wpa_printf(MSG_DEBUG, "PASN: No SAE PT found");
+		return -1;
+	}
+
+	ret = sae_prepare_commit_pt(&pasn->sae, pasn->pt, own_addr, peer_addr,
+				    NULL, NULL);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to prepare SAE commit");
+		return -1;
+	}
+
+	res = sae_parse_commit(&pasn->sae, data + 6, buf_len - 6, NULL, 0,
+			       groups, 0, NULL);
+	if (res != WLAN_STATUS_SUCCESS) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed parsing SAE commit");
+		return -1;
+	}
+
+	/* Process the commit message and derive the PMK */
+	ret = sae_process_commit(&pasn->sae);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "SAE: Failed to process peer commit");
+		return -1;
+	}
+
+	pasn->sae.state = SAE_COMMITTED;
+
+	return 0;
+}
+
+
+static int pasn_wd_handle_sae_confirm(struct pasn_data *pasn,
+				      const u8 *peer_addr, struct wpabuf *wd)
+{
+	const u8 *data;
+	size_t buf_len;
+	u16 res, alg, seq, status;
+
+	if (!wd)
+		return -1;
+
+	data = wpabuf_head_u8(wd);
+	buf_len = wpabuf_len(wd);
+
+	if (buf_len < 6) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE buffer too short. len=%zu",
+			   buf_len);
+		return -1;
+	}
+
+	alg = WPA_GET_LE16(data);
+	seq = WPA_GET_LE16(data + 2);
+	status = WPA_GET_LE16(data + 4);
+
+	wpa_printf(MSG_DEBUG, "PASN: SAE confirm: alg=%u, seq=%u, status=%u",
+		   alg, seq, status);
+
+	if (alg != WLAN_AUTH_SAE || seq != 2 || status != WLAN_STATUS_SUCCESS) {
+		wpa_printf(MSG_DEBUG, "PASN: Dropping peer SAE confirm");
+		return -1;
+	}
+
+	res = sae_check_confirm(&pasn->sae, data + 6, buf_len - 6, NULL);
+	if (res != WLAN_STATUS_SUCCESS) {
+		wpa_printf(MSG_DEBUG, "PASN: SAE failed checking confirm");
+		return -1;
+	}
+
+	pasn->sae.state = SAE_ACCEPTED;
+
+	/*
+	 * TODO: Based on on IEEE P802.11az/D2.6, the PMKSA derived with
+	 * PASN/SAE should only be allowed with future PASN only. For now do not
+	 * restrict this only for PASN.
+	 */
+	if (pasn->disable_pmksa_caching)
+		return 0;
+
+	wpa_hexdump_key(MSG_DEBUG, "RSN: Cache PMK from SAE",
+			pasn->sae.pmk, pasn->sae.pmk_len);
+	if (!pasn->sae.akmp)
+		pasn->sae.akmp = WPA_KEY_MGMT_SAE;
+
+	pmksa_cache_auth_add(pasn->pmksa, pasn->sae.pmk, pasn->sae.pmk_len,
+			     pasn->sae.pmkid, NULL, 0, pasn->own_addr,
+			     peer_addr, 0, NULL, pasn->sae.akmp);
+	return 0;
+}
+
+
+static struct wpabuf * pasn_get_sae_wd(struct pasn_data *pasn)
+{
+	struct wpabuf *buf = NULL;
+	u8 *len_ptr;
+	size_t len;
+
+	/* Need to add the entire Authentication frame body */
+	buf = wpabuf_alloc(8 + SAE_COMMIT_MAX_LEN + 8 + SAE_CONFIRM_MAX_LEN);
+	if (!buf) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to allocate SAE buffer");
+		return NULL;
+	}
+
+	/* Need to add the entire authentication frame body for the commit */
+	len_ptr = wpabuf_put(buf, 2);
+	wpabuf_put_le16(buf, WLAN_AUTH_SAE);
+	wpabuf_put_le16(buf, 1);
+	wpabuf_put_le16(buf, WLAN_STATUS_SAE_HASH_TO_ELEMENT);
+
+	/* Write the actual commit and update the length accordingly */
+	sae_write_commit(&pasn->sae, buf, NULL, 0);
+	len = wpabuf_len(buf);
+	WPA_PUT_LE16(len_ptr, len - 2);
+
+	/* Need to add the entire Authentication frame body for the confirm */
+	len_ptr = wpabuf_put(buf, 2);
+	wpabuf_put_le16(buf, WLAN_AUTH_SAE);
+	wpabuf_put_le16(buf, 2);
+	wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
+
+	sae_write_confirm(&pasn->sae, buf);
+	WPA_PUT_LE16(len_ptr, wpabuf_len(buf) - len - 2);
+
+	pasn->sae.state = SAE_CONFIRMED;
+
+	return buf;
+}
+
+#endif /* CONFIG_SAE */
+
+
+#ifdef CONFIG_FILS
+
+static struct wpabuf * pasn_get_fils_wd(struct pasn_data *pasn)
+{
+	struct pasn_fils *fils = &pasn->fils;
+	struct wpabuf *buf = NULL;
+
+	if (!fils->erp_resp) {
+		wpa_printf(MSG_DEBUG, "PASN: FILS: Missing erp_resp");
+		return NULL;
+	}
+
+	buf = wpabuf_alloc(1500);
+	if (!buf)
+		return NULL;
+
+	/* Add the authentication algorithm */
+	wpabuf_put_le16(buf, WLAN_AUTH_FILS_SK);
+
+	/* Authentication Transaction seq# */
+	wpabuf_put_le16(buf, 2);
+
+	/* Status Code */
+	wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
+
+	/* Own RSNE */
+	wpa_pasn_add_rsne(buf, NULL, pasn->akmp, pasn->cipher);
+
+	/* FILS Nonce */
+	wpabuf_put_u8(buf, WLAN_EID_EXTENSION);
+	wpabuf_put_u8(buf, 1 + FILS_NONCE_LEN);
+	wpabuf_put_u8(buf, WLAN_EID_EXT_FILS_NONCE);
+	wpabuf_put_data(buf, fils->anonce, FILS_NONCE_LEN);
+
+	/* FILS Session */
+	wpabuf_put_u8(buf, WLAN_EID_EXTENSION);
+	wpabuf_put_u8(buf, 1 + FILS_SESSION_LEN);
+	wpabuf_put_u8(buf, WLAN_EID_EXT_FILS_SESSION);
+	wpabuf_put_data(buf, fils->session, FILS_SESSION_LEN);
+
+	/* Wrapped Data */
+	wpabuf_put_u8(buf, WLAN_EID_EXTENSION);
+	wpabuf_put_u8(buf, 1 + wpabuf_len(fils->erp_resp));
+	wpabuf_put_u8(buf, WLAN_EID_EXT_WRAPPED_DATA);
+	wpabuf_put_buf(buf, fils->erp_resp);
+
+	return buf;
+}
+
+#endif /* CONFIG_FILS */
+
+static struct wpabuf * pasn_get_wrapped_data(struct pasn_data *pasn)
+{
+	switch (pasn->akmp) {
+	case WPA_KEY_MGMT_PASN:
+		/* no wrapped data */
+		return NULL;
+	case WPA_KEY_MGMT_SAE:
+#ifdef CONFIG_SAE
+		return pasn_get_sae_wd(pasn);
+#else /* CONFIG_SAE */
+		wpa_printf(MSG_ERROR,
+			   "PASN: SAE: Cannot derive wrapped data");
+		return NULL;
+#endif /* CONFIG_SAE */
+	case WPA_KEY_MGMT_FILS_SHA256:
+	case WPA_KEY_MGMT_FILS_SHA384:
+#ifdef CONFIG_FILS
+		return pasn_get_fils_wd(pasn);
+#endif /* CONFIG_FILS */
+		/* fall through */
+	case WPA_KEY_MGMT_FT_PSK:
+	case WPA_KEY_MGMT_FT_IEEE8021X:
+	case WPA_KEY_MGMT_FT_IEEE8021X_SHA384:
+	default:
+		wpa_printf(MSG_ERROR,
+			   "PASN: TODO: Wrapped data for akmp=0x%x",
+			   pasn->akmp);
+		return NULL;
+	}
+}
+
+
+static int
+pasn_derive_keys(struct pasn_data *pasn,
+		 const u8 *own_addr, const u8 *peer_addr,
+		 const u8 *cached_pmk, size_t cached_pmk_len,
+		 struct wpa_pasn_params_data *pasn_data,
+		 struct wpabuf *wrapped_data,
+		 struct wpabuf *secret)
+{
+	static const u8 pasn_default_pmk[] = {'P', 'M', 'K', 'z'};
+	u8 pmk[PMK_LEN_MAX];
+	u8 pmk_len;
+	int ret;
+
+	os_memset(pmk, 0, sizeof(pmk));
+	pmk_len = 0;
+
+	if (!cached_pmk || !cached_pmk_len)
+		wpa_printf(MSG_DEBUG, "PASN: No valid PMKSA entry");
+
+	if (pasn->akmp == WPA_KEY_MGMT_PASN) {
+		wpa_printf(MSG_DEBUG, "PASN: Using default PMK");
+
+		pmk_len = WPA_PASN_PMK_LEN;
+		os_memcpy(pmk, pasn_default_pmk, sizeof(pasn_default_pmk));
+	} else if (cached_pmk && cached_pmk_len) {
+		wpa_printf(MSG_DEBUG, "PASN: Using PMKSA entry");
+
+		pmk_len = cached_pmk_len;
+		os_memcpy(pmk, cached_pmk, cached_pmk_len);
+	} else {
+		switch (pasn->akmp) {
+#ifdef CONFIG_SAE
+		case WPA_KEY_MGMT_SAE:
+			if (pasn->sae.state == SAE_COMMITTED) {
+				pmk_len = PMK_LEN;
+				os_memcpy(pmk, pasn->sae.pmk, PMK_LEN);
+				break;
+			}
+#endif /* CONFIG_SAE */
+			/* fall through */
+		default:
+			/* TODO: Derive PMK based on wrapped data */
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Missing PMK derivation");
+			return -1;
+		}
+	}
+
+	ret = pasn_pmk_to_ptk(pmk, pmk_len, peer_addr, own_addr,
+			      wpabuf_head(secret), wpabuf_len(secret),
+			      &pasn->ptk, pasn->akmp,
+			      pasn->cipher, pasn->kdk_len);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to derive PTK");
+		return -1;
+	}
+
+	if (pasn->secure_ltf) {
+		ret = wpa_ltf_keyseed(&pasn->ptk, pasn->akmp,
+				      pasn->cipher);
+		if (ret) {
+			wpa_printf(MSG_DEBUG,
+				   "PASN: Failed to derive LTF keyseed");
+			return -1;
+		}
+	}
+
+	wpa_printf(MSG_DEBUG, "PASN: PTK successfully derived");
+	return 0;
+}
+
+
+static void handle_auth_pasn_comeback(struct pasn_data *pasn,
+				      const u8 *own_addr, const u8 *peer_addr,
+				      u16 group)
+{
+	struct wpabuf *buf, *comeback;
+	int ret;
+
+	wpa_printf(MSG_DEBUG,
+		   "PASN: Building comeback frame 2. Comeback after=%u",
+		   pasn->comeback_after);
+
+	buf = wpabuf_alloc(1500);
+	if (!buf)
+		return;
+
+	wpa_pasn_build_auth_header(buf, pasn->bssid, own_addr, peer_addr, 2,
+				   WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY);
+
+	/*
+	 * Do not include the group as a part of the token since it is not going
+	 * to be used.
+	 */
+	comeback = auth_build_token_req(&pasn->last_comeback_key_update,
+					pasn->comeback_key, pasn->comeback_idx,
+					pasn->comeback_pending_idx,
+					sizeof(u16) * COMEBACK_PENDING_IDX_SIZE,
+					0, peer_addr, 0);
+	if (!comeback) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Failed sending auth with comeback");
+		wpabuf_free(buf);
+		return;
+	}
+
+	wpa_pasn_add_parameter_ie(buf, group,
+				  WPA_PASN_WRAPPED_DATA_NO,
+				  NULL, 0, comeback,
+				  pasn->comeback_after);
+	wpabuf_free(comeback);
+
+	wpa_printf(MSG_DEBUG,
+		   "PASN: comeback: STA=" MACSTR, MAC2STR(peer_addr));
+
+	ret = pasn->send_mgmt(pasn->cb_ctx, wpabuf_head_u8(buf),
+			      wpabuf_len(buf), 0, 0, 0);
+	if (ret)
+		wpa_printf(MSG_INFO, "PASN: Failed to send comeback frame 2");
+
+	wpabuf_free(buf);
+}
+
+
+int handle_auth_pasn_resp(struct pasn_data *pasn, const u8 *own_addr,
+			  const u8 *peer_addr,
+			  struct rsn_pmksa_cache_entry *pmksa, u16 status)
+{
+	struct wpabuf *buf, *pubkey = NULL, *wrapped_data_buf = NULL;
+	struct wpabuf *rsn_buf = NULL;
+	u8 mic[WPA_PASN_MAX_MIC_LEN];
+	u8 mic_len;
+	u8 *ptr;
+	const u8 *frame, *data, *rsn_ie, *rsnxe_ie;
+	u8 *data_buf = NULL;
+	size_t frame_len, data_len;
+	int ret;
+	const u8 *pmkid = NULL;
+
+	wpa_printf(MSG_DEBUG, "PASN: Building frame 2: status=%u", status);
+
+	buf = wpabuf_alloc(1500);
+	if (!buf)
+		goto fail;
+
+	wpa_pasn_build_auth_header(buf, pasn->bssid, own_addr, peer_addr, 2,
+				   status);
+
+	if (status != WLAN_STATUS_SUCCESS)
+		goto done;
+
+	if (pmksa && pasn->custom_pmkid_valid)
+		pmkid = pasn->custom_pmkid;
+	else if (pmksa) {
+		pmkid = pmksa->pmkid;
+#ifdef CONFIG_SAE
+	} else if (pasn->akmp == WPA_KEY_MGMT_SAE) {
+		wpa_printf(MSG_DEBUG, "PASN: Use SAE PMKID");
+		pmkid = pasn->sae.pmkid;
+#endif /* CONFIG_SAE */
+#ifdef CONFIG_FILS
+	} else if (pasn->akmp == WPA_KEY_MGMT_FILS_SHA256 ||
+		   pasn->akmp == WPA_KEY_MGMT_FILS_SHA384) {
+		wpa_printf(MSG_DEBUG, "PASN: Use FILS ERP PMKID");
+		pmkid = pasn->fils.erp_pmkid;
+#endif /* CONFIG_FILS */
+	}
+
+	if (wpa_pasn_add_rsne(buf, pmkid,
+			      pasn->akmp, pasn->cipher) < 0)
+		goto fail;
+
+	/* No need to derive PMK if PMKSA is given */
+	if (!pmksa)
+		wrapped_data_buf = pasn_get_wrapped_data(pasn);
+	else
+		pasn->wrapped_data_format = WPA_PASN_WRAPPED_DATA_NO;
+
+	/* Get public key */
+	pubkey = crypto_ecdh_get_pubkey(pasn->ecdh, 0);
+	pubkey = wpabuf_zeropad(pubkey,
+				crypto_ecdh_prime_len(pasn->ecdh));
+	if (!pubkey) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to get pubkey");
+		goto fail;
+	}
+
+	wpa_pasn_add_parameter_ie(buf, pasn->group,
+				  pasn->wrapped_data_format,
+				  pubkey, true, NULL, 0);
+
+	if (wpa_pasn_add_wrapped_data(buf, wrapped_data_buf) < 0)
+		goto fail;
+
+	wpabuf_free(wrapped_data_buf);
+	wrapped_data_buf = NULL;
+	wpabuf_free(pubkey);
+	pubkey = NULL;
+
+	/* Add RSNXE if needed */
+	rsnxe_ie = pasn->rsnxe_ie;
+	if (rsnxe_ie)
+		wpabuf_put_data(buf, rsnxe_ie, 2 + rsnxe_ie[1]);
+
+	wpa_pasn_add_extra_ies(buf, pasn->extra_ies, pasn->extra_ies_len);
+
+	/* Add the mic */
+	mic_len = pasn_mic_len(pasn->akmp, pasn->cipher);
+	wpabuf_put_u8(buf, WLAN_EID_MIC);
+	wpabuf_put_u8(buf, mic_len);
+	ptr = wpabuf_put(buf, mic_len);
+
+	os_memset(ptr, 0, mic_len);
+
+	frame = wpabuf_head_u8(buf) + IEEE80211_HDRLEN;
+	frame_len = wpabuf_len(buf) - IEEE80211_HDRLEN;
+
+	if (pasn->rsn_ie && pasn->rsn_ie_len) {
+		rsn_ie = pasn->rsn_ie;
+	} else {
+		/*
+		 * Note: when pasn->rsn_ie is NULL, it is likely that Beacon
+		 * frame RSNE is not initialized. This is possible in case of
+		 * PASN authentication used for Wi-Fi Aware for which Beacon
+		 * frame RSNE and RSNXE are same as RSNE and RSNXE in the
+		 * Authentication frame.
+		 */
+		rsn_buf = wpabuf_alloc(500);
+		if (!rsn_buf)
+			goto fail;
+
+		if (wpa_pasn_add_rsne(rsn_buf, pmkid,
+				      pasn->akmp, pasn->cipher) < 0)
+			goto fail;
+
+		rsn_ie = wpabuf_head_u8(rsn_buf);
+	}
+
+	/*
+	 * Note: wpa_auth_get_wpa_ie() might return not only the RSNE but also
+	 * MDE, etc. Thus, do not use the returned length but instead use the
+	 * length specified in the IE header.
+	 */
+	data_len = rsn_ie[1] + 2;
+	if (rsnxe_ie) {
+		data_buf = os_zalloc(rsn_ie[1] + 2 + rsnxe_ie[1] + 2);
+		if (!data_buf)
+			goto fail;
+
+		os_memcpy(data_buf, rsn_ie, rsn_ie[1] + 2);
+		os_memcpy(data_buf + rsn_ie[1] + 2, rsnxe_ie, rsnxe_ie[1] + 2);
+		data_len += rsnxe_ie[1] + 2;
+		data = data_buf;
+	} else {
+		data = rsn_ie;
+	}
+
+	ret = pasn_mic(pasn->ptk.kck, pasn->akmp, pasn->cipher,
+		       own_addr, peer_addr, data, data_len,
+		       frame, frame_len, mic);
+	os_free(data_buf);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Frame 3: Failed MIC calculation");
+		goto fail;
+	}
+
+#ifdef CONFIG_TESTING_OPTIONS
+	if (pasn->corrupt_mic) {
+		wpa_printf(MSG_DEBUG, "PASN: frame 2: Corrupt MIC");
+		mic[0] = ~mic[0];
+	}
+#endif /* CONFIG_TESTING_OPTIONS */
+
+	os_memcpy(ptr, mic, mic_len);
+
+done:
+	wpa_printf(MSG_DEBUG,
+		   "PASN: Building frame 2: success; resp STA=" MACSTR,
+		   MAC2STR(peer_addr));
+
+	ret = pasn->send_mgmt(pasn->cb_ctx, wpabuf_head_u8(buf),
+			      wpabuf_len(buf), 0, 0, 0);
+	if (ret)
+		wpa_printf(MSG_INFO, "send_auth_reply: Send failed");
+
+	wpabuf_free(rsn_buf);
+	wpabuf_free(buf);
+	return ret;
+fail:
+	wpabuf_free(wrapped_data_buf);
+	wpabuf_free(pubkey);
+	wpabuf_free(rsn_buf);
+	wpabuf_free(buf);
+	return -1;
+}
+
+
+int handle_auth_pasn_1(struct pasn_data *pasn,
+		       const u8 *own_addr, const u8 *peer_addr,
+		       const struct ieee80211_mgmt *mgmt, size_t len)
+{
+	struct ieee802_11_elems elems;
+	struct wpa_ie_data rsn_data;
+	struct wpa_pasn_params_data pasn_params;
+	struct rsn_pmksa_cache_entry *pmksa = NULL;
+	const u8 *cached_pmk = NULL;
+	size_t cached_pmk_len = 0;
+	struct wpabuf *wrapped_data = NULL, *secret = NULL;
+	const int *groups = pasn->pasn_groups;
+	static const int default_groups[] = { 19, 0 };
+	u16 status = WLAN_STATUS_SUCCESS;
+	int ret, inc_y;
+	bool derive_keys;
+	u32 i;
+
+	if (!groups)
+		groups = default_groups;
+
+	if (ieee802_11_parse_elems(mgmt->u.auth.variable,
+				   len - offsetof(struct ieee80211_mgmt,
+						  u.auth.variable),
+				   &elems, 0) == ParseFailed) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Failed parsing Authentication frame");
+		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+		goto send_resp;
+	}
+
+	if (!elems.rsn_ie) {
+		wpa_printf(MSG_DEBUG, "PASN: No RSNE");
+		status = WLAN_STATUS_INVALID_RSNIE;
+		goto send_resp;
+	}
+
+	ret = wpa_parse_wpa_ie_rsn(elems.rsn_ie - 2, elems.rsn_ie_len + 2,
+				   &rsn_data);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed parsing RSNE");
+		status = WLAN_STATUS_INVALID_RSNIE;
+		goto send_resp;
+	}
+
+	ret = wpa_pasn_validate_rsne(&rsn_data);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed validating RSNE");
+		status = WLAN_STATUS_INVALID_RSNIE;
+		goto send_resp;
+	}
+
+	if (!(rsn_data.key_mgmt & pasn->wpa_key_mgmt) ||
+	    !(rsn_data.pairwise_cipher & pasn->rsn_pairwise)) {
+		wpa_printf(MSG_DEBUG, "PASN: Mismatch in AKMP/cipher");
+		status = WLAN_STATUS_INVALID_RSNIE;
+		goto send_resp;
+	}
+
+	pasn->akmp = rsn_data.key_mgmt;
+	pasn->cipher = rsn_data.pairwise_cipher;
+
+	if (pasn->derive_kdk &&
+	    ieee802_11_rsnx_capab_len(elems.rsnxe, elems.rsnxe_len,
+				      WLAN_RSNX_CAPAB_SECURE_LTF))
+		pasn->secure_ltf = true;
+
+	if (pasn->derive_kdk)
+		pasn->kdk_len = WPA_KDK_MAX_LEN;
+	else
+		pasn->kdk_len = 0;
+
+	wpa_printf(MSG_DEBUG, "PASN: kdk_len=%zu", pasn->kdk_len);
+
+	if (!elems.pasn_params || !elems.pasn_params_len) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: No PASN Parameters element found");
+		status = WLAN_STATUS_INVALID_PARAMETERS;
+		goto send_resp;
+	}
+
+	ret = wpa_pasn_parse_parameter_ie(elems.pasn_params - 3,
+					  elems.pasn_params_len + 3,
+					  false, &pasn_params);
+	if (ret) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Failed validation of PASN Parameters IE");
+		status = WLAN_STATUS_INVALID_PARAMETERS;
+		goto send_resp;
+	}
+
+	for (i = 0; groups[i] > 0 && groups[i] != pasn_params.group; i++)
+		;
+
+	if (!pasn_params.group || groups[i] != pasn_params.group) {
+		wpa_printf(MSG_DEBUG, "PASN: Requested group=%hu not allowed",
+			   pasn_params.group);
+		status = WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED;
+		goto send_resp;
+	}
+
+	if (!pasn_params.pubkey || !pasn_params.pubkey_len) {
+		wpa_printf(MSG_DEBUG, "PASN: Invalid public key");
+		status = WLAN_STATUS_INVALID_PARAMETERS;
+		goto send_resp;
+	}
+
+	if (pasn_params.comeback) {
+		wpa_printf(MSG_DEBUG, "PASN: Checking peer comeback token");
+
+		ret = check_comeback_token(pasn->comeback_key,
+					   pasn->comeback_pending_idx,
+					   peer_addr,
+					   pasn_params.comeback,
+					   pasn_params.comeback_len);
+
+		if (ret) {
+			wpa_printf(MSG_DEBUG, "PASN: Invalid comeback token");
+			status = WLAN_STATUS_INVALID_PARAMETERS;
+			goto send_resp;
+		}
+	} else if (pasn->use_anti_clogging) {
+		wpa_printf(MSG_DEBUG, "PASN: Respond with comeback");
+		handle_auth_pasn_comeback(pasn, own_addr, peer_addr,
+					  pasn_params.group);
+		return -1;
+	}
+
+	pasn->ecdh = crypto_ecdh_init(pasn_params.group);
+	if (!pasn->ecdh) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to init ECDH");
+		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+		goto send_resp;
+	}
+
+	pasn->group = pasn_params.group;
+
+	if (pasn_params.pubkey[0] == WPA_PASN_PUBKEY_UNCOMPRESSED) {
+		inc_y = 1;
+	} else if (pasn_params.pubkey[0] == WPA_PASN_PUBKEY_COMPRESSED_0 ||
+		   pasn_params.pubkey[0] == WPA_PASN_PUBKEY_COMPRESSED_1) {
+		inc_y = 0;
+	} else {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Invalid first octet in pubkey=0x%x",
+			   pasn_params.pubkey[0]);
+		status = WLAN_STATUS_INVALID_PUBLIC_KEY;
+		goto send_resp;
+	}
+
+	secret = crypto_ecdh_set_peerkey(pasn->ecdh, inc_y,
+					 pasn_params.pubkey + 1,
+					 pasn_params.pubkey_len - 1);
+	if (!secret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to derive shared secret");
+		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+		goto send_resp;
+	}
+
+	derive_keys = true;
+	if (pasn_params.wrapped_data_format != WPA_PASN_WRAPPED_DATA_NO) {
+		wrapped_data = ieee802_11_defrag(&elems,
+						 WLAN_EID_EXTENSION,
+						 WLAN_EID_EXT_WRAPPED_DATA);
+		if (!wrapped_data) {
+			wpa_printf(MSG_DEBUG, "PASN: Missing wrapped data");
+			status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+			goto send_resp;
+		}
+
+#ifdef CONFIG_SAE
+		if (pasn->akmp == WPA_KEY_MGMT_SAE) {
+			ret = pasn_wd_handle_sae_commit(pasn, own_addr,
+							peer_addr,
+							wrapped_data);
+			if (ret) {
+				wpa_printf(MSG_DEBUG,
+					   "PASN: Failed processing SAE commit");
+				status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+				goto send_resp;
+			}
+		}
+#endif /* CONFIG_SAE */
+#ifdef CONFIG_FILS
+		if (pasn->akmp == WPA_KEY_MGMT_FILS_SHA256 ||
+		    pasn->akmp == WPA_KEY_MGMT_FILS_SHA384) {
+			if (!pasn->fils_wd_valid) {
+				wpa_printf(MSG_DEBUG,
+					   "PASN: Invalid FILS wrapped data");
+				status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+				goto send_resp;
+			}
+
+			wpa_printf(MSG_DEBUG,
+				   "PASN: FILS: Pending AS response");
+
+			/*
+			 * With PASN/FILS, keys can be derived only after a
+			 * response from the AS is processed.
+			 */
+			derive_keys = false;
+		}
+#endif /* CONFIG_FILS */
+	}
+
+	pasn->wrapped_data_format = pasn_params.wrapped_data_format;
+
+	ret = pasn_auth_frame_hash(pasn->akmp, pasn->cipher,
+				   ((const u8 *) mgmt) + IEEE80211_HDRLEN,
+				   len - IEEE80211_HDRLEN, pasn->hash);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to compute hash");
+		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+		goto send_resp;
+	}
+
+	if (!derive_keys) {
+		wpa_printf(MSG_DEBUG, "PASN: Storing secret");
+		pasn->secret = secret;
+		wpabuf_free(wrapped_data);
+		return 0;
+	}
+
+	if (rsn_data.num_pmkid) {
+		if (wpa_key_mgmt_ft(pasn->akmp)) {
+#ifdef CONFIG_IEEE80211R_AP
+			wpa_printf(MSG_DEBUG, "PASN: FT: Fetch PMK-R1");
+
+			if (!pasn->pmk_r1_len) {
+				wpa_printf(MSG_DEBUG,
+					   "PASN: FT: Failed getting PMK-R1");
+				status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+				goto send_resp;
+			}
+			cached_pmk = pasn->pmk_r1;
+			cached_pmk_len = pasn->pmk_r1_len;
+#else /* CONFIG_IEEE80211R_AP */
+			wpa_printf(MSG_DEBUG, "PASN: FT: Not supported");
+			status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+			goto send_resp;
+#endif /* CONFIG_IEEE80211R_AP */
+		} else {
+			wpa_printf(MSG_DEBUG, "PASN: Try to find PMKSA entry");
+
+			if (pasn->pmksa) {
+				const u8 *pmkid = NULL;
+
+				if (pasn->custom_pmkid_valid) {
+					ret = pasn->validate_custom_pmkid(
+						pasn->cb_ctx, peer_addr,
+						rsn_data.pmkid);
+					if (ret) {
+						wpa_printf(MSG_DEBUG,
+							   "PASN: Failed custom PMKID validation");
+						status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+						goto send_resp;
+					}
+				} else {
+					pmkid = rsn_data.pmkid;
+				}
+
+				pmksa = pmksa_cache_auth_get(pasn->pmksa,
+							     peer_addr,
+							     pmkid);
+				if (pmksa) {
+					cached_pmk = pmksa->pmk;
+					cached_pmk_len = pmksa->pmk_len;
+				}
+			}
+		}
+	} else {
+		wpa_printf(MSG_DEBUG, "PASN: No PMKID specified");
+	}
+
+	ret = pasn_derive_keys(pasn, own_addr, peer_addr,
+			       cached_pmk, cached_pmk_len,
+			       &pasn_params, wrapped_data, secret);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to derive keys");
+		status = WLAN_STATUS_PASN_BASE_AKMP_FAILED;
+		goto send_resp;
+	}
+
+	ret = pasn_auth_frame_hash(pasn->akmp, pasn->cipher,
+				   ((const u8 *) mgmt) + IEEE80211_HDRLEN,
+				   len - IEEE80211_HDRLEN, pasn->hash);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to compute hash");
+		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+	}
+
+send_resp:
+	ret = handle_auth_pasn_resp(pasn, own_addr, peer_addr, pmksa, status);
+	if (ret) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed to send response");
+		status = WLAN_STATUS_UNSPECIFIED_FAILURE;
+	} else {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Success handling transaction == 1");
+	}
+
+	wpabuf_free(secret);
+	wpabuf_free(wrapped_data);
+
+	if (status != WLAN_STATUS_SUCCESS)
+		return -1;
+
+	return 0;
+}
+
+
+int handle_auth_pasn_3(struct pasn_data *pasn, const u8 *own_addr,
+		       const u8 *peer_addr,
+		       const struct ieee80211_mgmt *mgmt, size_t len)
+{
+	struct ieee802_11_elems elems;
+	struct wpa_pasn_params_data pasn_params;
+	struct wpabuf *wrapped_data = NULL;
+	u8 mic[WPA_PASN_MAX_MIC_LEN], out_mic[WPA_PASN_MAX_MIC_LEN];
+	u8 mic_len;
+	int ret;
+	u8 *copy = NULL;
+	size_t copy_len, mic_offset;
+
+	if (ieee802_11_parse_elems(mgmt->u.auth.variable,
+				   len - offsetof(struct ieee80211_mgmt,
+						  u.auth.variable),
+				   &elems, 0) == ParseFailed) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Failed parsing Authentication frame");
+		goto fail;
+	}
+
+	/* Check that the MIC IE exists. Save it and zero out the memory. */
+	mic_len = pasn_mic_len(pasn->akmp, pasn->cipher);
+	if (!elems.mic || elems.mic_len != mic_len) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Invalid MIC. Expecting len=%u", mic_len);
+		goto fail;
+	}
+	os_memcpy(mic, elems.mic, mic_len);
+
+	if (!elems.pasn_params || !elems.pasn_params_len) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: No PASN Parameters element found");
+		goto fail;
+	}
+
+	ret = wpa_pasn_parse_parameter_ie(elems.pasn_params - 3,
+					  elems.pasn_params_len + 3,
+					  false, &pasn_params);
+	if (ret) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Failed validation of PASN Parameters IE");
+		goto fail;
+	}
+
+	if (pasn_params.pubkey || pasn_params.pubkey_len) {
+		wpa_printf(MSG_DEBUG,
+			   "PASN: Public key should not be included");
+		goto fail;
+	}
+
+	/* Verify the MIC */
+	copy_len = len - offsetof(struct ieee80211_mgmt, u.auth);
+	mic_offset = elems.mic - (const u8 *) &mgmt->u.auth;
+	copy_len = len - offsetof(struct ieee80211_mgmt, u.auth);
+	if (mic_offset + mic_len > copy_len)
+		goto fail;
+	copy = os_memdup(&mgmt->u.auth, copy_len);
+	if (!copy)
+		goto fail;
+	os_memset(copy + mic_offset, 0, mic_len);
+	ret = pasn_mic(pasn->ptk.kck, pasn->akmp, pasn->cipher,
+		       peer_addr, own_addr,
+		       pasn->hash, mic_len * 2,
+		       copy, copy_len, out_mic);
+	os_free(copy);
+	copy = NULL;
+
+	wpa_hexdump_key(MSG_DEBUG, "PASN: Frame MIC", mic, mic_len);
+	if (ret || os_memcmp(mic, out_mic, mic_len) != 0) {
+		wpa_printf(MSG_DEBUG, "PASN: Failed MIC verification");
+		goto fail;
+	}
+
+	if (pasn_params.wrapped_data_format != WPA_PASN_WRAPPED_DATA_NO) {
+		wrapped_data = ieee802_11_defrag(&elems,
+						 WLAN_EID_EXTENSION,
+						 WLAN_EID_EXT_WRAPPED_DATA);
+
+		if (!wrapped_data) {
+			wpa_printf(MSG_DEBUG, "PASN: Missing wrapped data");
+			goto fail;
+		}
+
+#ifdef CONFIG_SAE
+		if (pasn->akmp == WPA_KEY_MGMT_SAE) {
+			ret = pasn_wd_handle_sae_confirm(pasn, peer_addr,
+							 wrapped_data);
+			if (ret) {
+				wpa_printf(MSG_DEBUG,
+					   "PASN: Failed processing SAE confirm");
+				wpabuf_free(wrapped_data);
+				goto fail;
+			}
+		}
+#endif /* CONFIG_SAE */
+#ifdef CONFIG_FILS
+		if (pasn->akmp == WPA_KEY_MGMT_FILS_SHA256 ||
+		    pasn->akmp == WPA_KEY_MGMT_FILS_SHA384) {
+			if (wrapped_data) {
+				wpa_printf(MSG_DEBUG,
+					   "PASN: FILS: Ignore wrapped data");
+			}
+		}
+#endif /* CONFIG_FILS */
+		wpabuf_free(wrapped_data);
+	}
+
+	wpa_printf(MSG_INFO,
+		   "PASN: Success handling transaction == 3. Store PTK");
+	return 0;
+
+fail:
+	os_free(copy);
+	return -1;
+}
+
+#endif /* CONFIG_PASN */