Merging upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 971 insertions, 0 deletions

diff --git a/net/mac80211/parse.c b/net/mac80211/parse.c
new file mode 100644
index 0000000000..055a60e909
--- /dev/null
+++ b/net/mac80211/parse.c
@@ -0,0 +1,971 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright (C) 2015-2017	Intel Deutschland GmbH
+ * Copyright (C) 2018-2024 Intel Corporation
+ *
+ * element parsing for mac80211
+ */
+
+#include <net/mac80211.h>
+#include <linux/netdevice.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/bitmap.h>
+#include <linux/crc32.h>
+#include <net/net_namespace.h>
+#include <net/cfg80211.h>
+#include <net/rtnetlink.h>
+#include <kunit/visibility.h>
+
+#include "ieee80211_i.h"
+#include "driver-ops.h"
+#include "rate.h"
+#include "mesh.h"
+#include "wme.h"
+#include "led.h"
+#include "wep.h"
+
+struct ieee80211_elems_parse {
+	/* must be first for kfree to work */
+	struct ieee802_11_elems elems;
+
+	/* The basic Multi-Link element in the original elements */
+	const struct element *ml_basic_elem;
+
+	/* The reconfiguration Multi-Link element in the original elements */
+	const struct element *ml_reconf_elem;
+
+	/*
+	 * scratch buffer that can be used for various element parsing related
+	 * tasks, e.g., element de-fragmentation etc.
+	 */
+	size_t scratch_len;
+	u8 *scratch_pos;
+	u8 scratch[] __counted_by(scratch_len);
+};
+
+static void
+ieee80211_parse_extension_element(u32 *crc,
+				  const struct element *elem,
+				  struct ieee80211_elems_parse *elems_parse,
+				  struct ieee80211_elems_parse_params *params)
+{
+	struct ieee802_11_elems *elems = &elems_parse->elems;
+	const void *data = elem->data + 1;
+	bool calc_crc = false;
+	u8 len;
+
+	if (!elem->datalen)
+		return;
+
+	len = elem->datalen - 1;
+
+	switch (elem->data[0]) {
+	case WLAN_EID_EXT_HE_MU_EDCA:
+		if (params->mode < IEEE80211_CONN_MODE_HE)
+			break;
+		calc_crc = true;
+		if (len >= sizeof(*elems->mu_edca_param_set))
+			elems->mu_edca_param_set = data;
+		break;
+	case WLAN_EID_EXT_HE_CAPABILITY:
+		if (params->mode < IEEE80211_CONN_MODE_HE)
+			break;
+		if (ieee80211_he_capa_size_ok(data, len)) {
+			elems->he_cap = data;
+			elems->he_cap_len = len;
+		}
+		break;
+	case WLAN_EID_EXT_HE_OPERATION:
+		if (params->mode < IEEE80211_CONN_MODE_HE)
+			break;
+		calc_crc = true;
+		if (len >= sizeof(*elems->he_operation) &&
+		    len >= ieee80211_he_oper_size(data) - 1)
+			elems->he_operation = data;
+		break;
+	case WLAN_EID_EXT_UORA:
+		if (params->mode < IEEE80211_CONN_MODE_HE)
+			break;
+		if (len >= 1)
+			elems->uora_element = data;
+		break;
+	case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME:
+		if (len == 3)
+			elems->max_channel_switch_time = data;
+		break;
+	case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION:
+		if (len >= sizeof(*elems->mbssid_config_ie))
+			elems->mbssid_config_ie = data;
+		break;
+	case WLAN_EID_EXT_HE_SPR:
+		if (params->mode < IEEE80211_CONN_MODE_HE)
+			break;
+		if (len >= sizeof(*elems->he_spr) &&
+		    len >= ieee80211_he_spr_size(data) - 1)
+			elems->he_spr = data;
+		break;
+	case WLAN_EID_EXT_HE_6GHZ_CAPA:
+		if (params->mode < IEEE80211_CONN_MODE_HE)
+			break;
+		if (len >= sizeof(*elems->he_6ghz_capa))
+			elems->he_6ghz_capa = data;
+		break;
+	case WLAN_EID_EXT_EHT_CAPABILITY:
+		if (params->mode < IEEE80211_CONN_MODE_EHT)
+			break;
+		if (ieee80211_eht_capa_size_ok(elems->he_cap,
+					       data, len,
+					       params->from_ap)) {
+			elems->eht_cap = data;
+			elems->eht_cap_len = len;
+		}
+		break;
+	case WLAN_EID_EXT_EHT_OPERATION:
+		if (params->mode < IEEE80211_CONN_MODE_EHT)
+			break;
+		if (ieee80211_eht_oper_size_ok(data, len))
+			elems->eht_operation = data;
+		calc_crc = true;
+		break;
+	case WLAN_EID_EXT_EHT_MULTI_LINK:
+		if (params->mode < IEEE80211_CONN_MODE_EHT)
+			break;
+		calc_crc = true;
+
+		if (ieee80211_mle_size_ok(data, len)) {
+			const struct ieee80211_multi_link_elem *mle =
+				(void *)data;
+
+			switch (le16_get_bits(mle->control,
+					      IEEE80211_ML_CONTROL_TYPE)) {
+			case IEEE80211_ML_CONTROL_TYPE_BASIC:
+				if (elems_parse->ml_basic_elem) {
+					elems->parse_error |=
+						IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC;
+					break;
+				}
+				elems_parse->ml_basic_elem = elem;
+				break;
+			case IEEE80211_ML_CONTROL_TYPE_RECONF:
+				elems_parse->ml_reconf_elem = elem;
+				break;
+			default:
+				break;
+			}
+		}
+		break;
+	case WLAN_EID_EXT_BANDWIDTH_INDICATION:
+		if (params->mode < IEEE80211_CONN_MODE_EHT)
+			break;
+		if (ieee80211_bandwidth_indication_size_ok(data, len))
+			elems->bandwidth_indication = data;
+		calc_crc = true;
+		break;
+	case WLAN_EID_EXT_TID_TO_LINK_MAPPING:
+		if (params->mode < IEEE80211_CONN_MODE_EHT)
+			break;
+		calc_crc = true;
+		if (ieee80211_tid_to_link_map_size_ok(data, len) &&
+		    elems->ttlm_num < ARRAY_SIZE(elems->ttlm)) {
+			elems->ttlm[elems->ttlm_num] = (void *)data;
+			elems->ttlm_num++;
+		}
+		break;
+	}
+
+	if (crc && calc_crc)
+		*crc = crc32_be(*crc, (void *)elem, elem->datalen + 2);
+}
+
+static u32
+_ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params,
+			     struct ieee80211_elems_parse *elems_parse,
+			     const struct element *check_inherit)
+{
+	struct ieee802_11_elems *elems = &elems_parse->elems;
+	const struct element *elem;
+	bool calc_crc = params->filter != 0;
+	DECLARE_BITMAP(seen_elems, 256);
+	u32 crc = params->crc;
+
+	bitmap_zero(seen_elems, 256);
+
+	for_each_element(elem, params->start, params->len) {
+		const struct element *subelem;
+		u8 elem_parse_failed;
+		u8 id = elem->id;
+		u8 elen = elem->datalen;
+		const u8 *pos = elem->data;
+
+		if (check_inherit &&
+		    !cfg80211_is_element_inherited(elem,
+						   check_inherit))
+			continue;
+
+		switch (id) {
+		case WLAN_EID_SSID:
+		case WLAN_EID_SUPP_RATES:
+		case WLAN_EID_FH_PARAMS:
+		case WLAN_EID_DS_PARAMS:
+		case WLAN_EID_CF_PARAMS:
+		case WLAN_EID_TIM:
+		case WLAN_EID_IBSS_PARAMS:
+		case WLAN_EID_CHALLENGE:
+		case WLAN_EID_RSN:
+		case WLAN_EID_ERP_INFO:
+		case WLAN_EID_EXT_SUPP_RATES:
+		case WLAN_EID_HT_CAPABILITY:
+		case WLAN_EID_HT_OPERATION:
+		case WLAN_EID_VHT_CAPABILITY:
+		case WLAN_EID_VHT_OPERATION:
+		case WLAN_EID_MESH_ID:
+		case WLAN_EID_MESH_CONFIG:
+		case WLAN_EID_PEER_MGMT:
+		case WLAN_EID_PREQ:
+		case WLAN_EID_PREP:
+		case WLAN_EID_PERR:
+		case WLAN_EID_RANN:
+		case WLAN_EID_CHANNEL_SWITCH:
+		case WLAN_EID_EXT_CHANSWITCH_ANN:
+		case WLAN_EID_COUNTRY:
+		case WLAN_EID_PWR_CONSTRAINT:
+		case WLAN_EID_TIMEOUT_INTERVAL:
+		case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
+		case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
+		case WLAN_EID_CHAN_SWITCH_PARAM:
+		case WLAN_EID_EXT_CAPABILITY:
+		case WLAN_EID_CHAN_SWITCH_TIMING:
+		case WLAN_EID_LINK_ID:
+		case WLAN_EID_BSS_MAX_IDLE_PERIOD:
+		case WLAN_EID_RSNX:
+		case WLAN_EID_S1G_BCN_COMPAT:
+		case WLAN_EID_S1G_CAPABILITIES:
+		case WLAN_EID_S1G_OPERATION:
+		case WLAN_EID_AID_RESPONSE:
+		case WLAN_EID_S1G_SHORT_BCN_INTERVAL:
+		/*
+		 * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible
+		 * that if the content gets bigger it might be needed more than once
+		 */
+			if (test_bit(id, seen_elems)) {
+				elems->parse_error |=
+					IEEE80211_PARSE_ERR_DUP_ELEM;
+				continue;
+			}
+			break;
+		}
+
+		if (calc_crc && id < 64 && (params->filter & (1ULL << id)))
+			crc = crc32_be(crc, pos - 2, elen + 2);
+
+		elem_parse_failed = 0;
+
+		switch (id) {
+		case WLAN_EID_LINK_ID:
+			if (elen + 2 < sizeof(struct ieee80211_tdls_lnkie)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->lnk_id = (void *)(pos - 2);
+			break;
+		case WLAN_EID_CHAN_SWITCH_TIMING:
+			if (elen < sizeof(struct ieee80211_ch_switch_timing)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->ch_sw_timing = (void *)pos;
+			break;
+		case WLAN_EID_EXT_CAPABILITY:
+			elems->ext_capab = pos;
+			elems->ext_capab_len = elen;
+			break;
+		case WLAN_EID_SSID:
+			elems->ssid = pos;
+			elems->ssid_len = elen;
+			break;
+		case WLAN_EID_SUPP_RATES:
+			elems->supp_rates = pos;
+			elems->supp_rates_len = elen;
+			break;
+		case WLAN_EID_DS_PARAMS:
+			if (elen >= 1)
+				elems->ds_params = pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_TIM:
+			if (elen >= sizeof(struct ieee80211_tim_ie)) {
+				elems->tim = (void *)pos;
+				elems->tim_len = elen;
+			} else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_VENDOR_SPECIFIC:
+			if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
+			    pos[2] == 0xf2) {
+				/* Microsoft OUI (00:50:F2) */
+
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
+
+				if (elen >= 5 && pos[3] == 2) {
+					/* OUI Type 2 - WMM IE */
+					if (pos[4] == 0) {
+						elems->wmm_info = pos;
+						elems->wmm_info_len = elen;
+					} else if (pos[4] == 1) {
+						elems->wmm_param = pos;
+						elems->wmm_param_len = elen;
+					}
+				}
+			}
+			break;
+		case WLAN_EID_RSN:
+			elems->rsn = pos;
+			elems->rsn_len = elen;
+			break;
+		case WLAN_EID_ERP_INFO:
+			if (elen >= 1)
+				elems->erp_info = pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_EXT_SUPP_RATES:
+			elems->ext_supp_rates = pos;
+			elems->ext_supp_rates_len = elen;
+			break;
+		case WLAN_EID_HT_CAPABILITY:
+			if (params->mode < IEEE80211_CONN_MODE_HT)
+				break;
+			if (elen >= sizeof(struct ieee80211_ht_cap))
+				elems->ht_cap_elem = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_HT_OPERATION:
+			if (params->mode < IEEE80211_CONN_MODE_HT)
+				break;
+			if (elen >= sizeof(struct ieee80211_ht_operation))
+				elems->ht_operation = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_VHT_CAPABILITY:
+			if (params->mode < IEEE80211_CONN_MODE_VHT)
+				break;
+			if (elen >= sizeof(struct ieee80211_vht_cap))
+				elems->vht_cap_elem = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_VHT_OPERATION:
+			if (params->mode < IEEE80211_CONN_MODE_VHT)
+				break;
+			if (elen >= sizeof(struct ieee80211_vht_operation)) {
+				elems->vht_operation = (void *)pos;
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
+				break;
+			}
+			elem_parse_failed =
+				IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_OPMODE_NOTIF:
+			if (params->mode < IEEE80211_CONN_MODE_VHT)
+				break;
+			if (elen > 0) {
+				elems->opmode_notif = pos;
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
+				break;
+			}
+			elem_parse_failed =
+				IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_MESH_ID:
+			elems->mesh_id = pos;
+			elems->mesh_id_len = elen;
+			break;
+		case WLAN_EID_MESH_CONFIG:
+			if (elen >= sizeof(struct ieee80211_meshconf_ie))
+				elems->mesh_config = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_PEER_MGMT:
+			elems->peering = pos;
+			elems->peering_len = elen;
+			break;
+		case WLAN_EID_MESH_AWAKE_WINDOW:
+			if (elen >= 2)
+				elems->awake_window = (void *)pos;
+			break;
+		case WLAN_EID_PREQ:
+			elems->preq = pos;
+			elems->preq_len = elen;
+			break;
+		case WLAN_EID_PREP:
+			elems->prep = pos;
+			elems->prep_len = elen;
+			break;
+		case WLAN_EID_PERR:
+			elems->perr = pos;
+			elems->perr_len = elen;
+			break;
+		case WLAN_EID_RANN:
+			if (elen >= sizeof(struct ieee80211_rann_ie))
+				elems->rann = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_CHANNEL_SWITCH:
+			if (elen != sizeof(struct ieee80211_channel_sw_ie)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->ch_switch_ie = (void *)pos;
+			break;
+		case WLAN_EID_EXT_CHANSWITCH_ANN:
+			if (elen != sizeof(struct ieee80211_ext_chansw_ie)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->ext_chansw_ie = (void *)pos;
+			break;
+		case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
+			if (params->mode < IEEE80211_CONN_MODE_HT)
+				break;
+			if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->sec_chan_offs = (void *)pos;
+			break;
+		case WLAN_EID_CHAN_SWITCH_PARAM:
+			if (elen <
+			    sizeof(*elems->mesh_chansw_params_ie)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->mesh_chansw_params_ie = (void *)pos;
+			break;
+		case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
+			if (params->mode < IEEE80211_CONN_MODE_VHT)
+				break;
+
+			if (!params->action) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_UNEXPECTED_ELEM;
+				break;
+			}
+
+			if (elen < sizeof(*elems->wide_bw_chansw_ie)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->wide_bw_chansw_ie = (void *)pos;
+			break;
+		case WLAN_EID_CHANNEL_SWITCH_WRAPPER:
+			if (params->mode < IEEE80211_CONN_MODE_VHT)
+				break;
+			if (params->action) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_UNEXPECTED_ELEM;
+				break;
+			}
+			/*
+			 * This is a bit tricky, but as we only care about
+			 * a few elements, parse them out manually.
+			 */
+			subelem = cfg80211_find_elem(WLAN_EID_WIDE_BW_CHANNEL_SWITCH,
+						     pos, elen);
+			if (subelem) {
+				if (subelem->datalen >= sizeof(*elems->wide_bw_chansw_ie))
+					elems->wide_bw_chansw_ie =
+						(void *)subelem->data;
+				else
+					elem_parse_failed =
+						IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			}
+
+			if (params->mode < IEEE80211_CONN_MODE_EHT)
+				break;
+
+			subelem = cfg80211_find_ext_elem(WLAN_EID_EXT_BANDWIDTH_INDICATION,
+							 pos, elen);
+			if (subelem) {
+				const void *edata = subelem->data + 1;
+				u8 edatalen = subelem->datalen - 1;
+
+				if (ieee80211_bandwidth_indication_size_ok(edata,
+									   edatalen))
+					elems->bandwidth_indication = edata;
+				else
+					elem_parse_failed =
+						IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			}
+			break;
+		case WLAN_EID_COUNTRY:
+			elems->country_elem = pos;
+			elems->country_elem_len = elen;
+			break;
+		case WLAN_EID_PWR_CONSTRAINT:
+			if (elen != 1) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->pwr_constr_elem = pos;
+			break;
+		case WLAN_EID_CISCO_VENDOR_SPECIFIC:
+			/* Lots of different options exist, but we only care
+			 * about the Dynamic Transmit Power Control element.
+			 * First check for the Cisco OUI, then for the DTPC
+			 * tag (0x00).
+			 */
+			if (elen < 4) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+
+			if (pos[0] != 0x00 || pos[1] != 0x40 ||
+			    pos[2] != 0x96 || pos[3] != 0x00)
+				break;
+
+			if (elen != 6) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+
+			if (calc_crc)
+				crc = crc32_be(crc, pos - 2, elen + 2);
+
+			elems->cisco_dtpc_elem = pos;
+			break;
+		case WLAN_EID_ADDBA_EXT:
+			if (elen < sizeof(struct ieee80211_addba_ext_ie)) {
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+				break;
+			}
+			elems->addba_ext_ie = (void *)pos;
+			break;
+		case WLAN_EID_TIMEOUT_INTERVAL:
+			if (elen >= sizeof(struct ieee80211_timeout_interval_ie))
+				elems->timeout_int = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_BSS_MAX_IDLE_PERIOD:
+			if (elen >= sizeof(*elems->max_idle_period_ie))
+				elems->max_idle_period_ie = (void *)pos;
+			break;
+		case WLAN_EID_RSNX:
+			elems->rsnx = pos;
+			elems->rsnx_len = elen;
+			break;
+		case WLAN_EID_TX_POWER_ENVELOPE:
+			if (elen < 1 ||
+			    elen > sizeof(struct ieee80211_tx_pwr_env))
+				break;
+
+			if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env))
+				break;
+
+			elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos;
+			elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen;
+			elems->tx_pwr_env_num++;
+			break;
+		case WLAN_EID_EXTENSION:
+			ieee80211_parse_extension_element(calc_crc ?
+								&crc : NULL,
+							  elem, elems_parse,
+							  params);
+			break;
+		case WLAN_EID_S1G_CAPABILITIES:
+			if (params->mode != IEEE80211_CONN_MODE_S1G)
+				break;
+			if (elen >= sizeof(*elems->s1g_capab))
+				elems->s1g_capab = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_S1G_OPERATION:
+			if (params->mode != IEEE80211_CONN_MODE_S1G)
+				break;
+			if (elen == sizeof(*elems->s1g_oper))
+				elems->s1g_oper = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_S1G_BCN_COMPAT:
+			if (params->mode != IEEE80211_CONN_MODE_S1G)
+				break;
+			if (elen == sizeof(*elems->s1g_bcn_compat))
+				elems->s1g_bcn_compat = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		case WLAN_EID_AID_RESPONSE:
+			if (params->mode != IEEE80211_CONN_MODE_S1G)
+				break;
+			if (elen == sizeof(struct ieee80211_aid_response_ie))
+				elems->aid_resp = (void *)pos;
+			else
+				elem_parse_failed =
+					IEEE80211_PARSE_ERR_BAD_ELEM_SIZE;
+			break;
+		default:
+			break;
+		}
+
+		if (elem_parse_failed)
+			elems->parse_error |= elem_parse_failed;
+		else
+			__set_bit(id, seen_elems);
+	}
+
+	if (!for_each_element_completed(elem, params->start, params->len))
+		elems->parse_error |= IEEE80211_PARSE_ERR_INVALID_END;
+
+	return crc;
+}
+
+static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len,
+					    struct ieee802_11_elems *elems,
+					    struct cfg80211_bss *bss,
+					    u8 *nontransmitted_profile)
+{
+	const struct element *elem, *sub;
+	size_t profile_len = 0;
+	bool found = false;
+
+	if (!bss || !bss->transmitted_bss)
+		return profile_len;
+
+	for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) {
+		if (elem->datalen < 2)
+			continue;
+		if (elem->data[0] < 1 || elem->data[0] > 8)
+			continue;
+
+		for_each_element(sub, elem->data + 1, elem->datalen - 1) {
+			u8 new_bssid[ETH_ALEN];
+			const u8 *index;
+
+			if (sub->id != 0 || sub->datalen < 4) {
+				/* not a valid BSS profile */
+				continue;
+			}
+
+			if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP ||
+			    sub->data[1] != 2) {
+				/* The first element of the
+				 * Nontransmitted BSSID Profile is not
+				 * the Nontransmitted BSSID Capability
+				 * element.
+				 */
+				continue;
+			}
+
+			memset(nontransmitted_profile, 0, len);
+			profile_len = cfg80211_merge_profile(start, len,
+							     elem,
+							     sub,
+							     nontransmitted_profile,
+							     len);
+
+			/* found a Nontransmitted BSSID Profile */
+			index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX,
+						 nontransmitted_profile,
+						 profile_len);
+			if (!index || index[1] < 1 || index[2] == 0) {
+				/* Invalid MBSSID Index element */
+				continue;
+			}
+
+			cfg80211_gen_new_bssid(bss->transmitted_bss->bssid,
+					       elem->data[0],
+					       index[2],
+					       new_bssid);
+			if (ether_addr_equal(new_bssid, bss->bssid)) {
+				found = true;
+				elems->bssid_index_len = index[1];
+				elems->bssid_index = (void *)&index[2];
+				break;
+			}
+		}
+	}
+
+	return found ? profile_len : 0;
+}
+
+static void
+ieee80211_mle_get_sta_prof(struct ieee80211_elems_parse *elems_parse,
+			   u8 link_id)
+{
+	struct ieee802_11_elems *elems = &elems_parse->elems;
+	const struct ieee80211_multi_link_elem *ml = elems->ml_basic;
+	ssize_t ml_len = elems->ml_basic_len;
+	const struct element *sub;
+
+	for_each_mle_subelement(sub, (u8 *)ml, ml_len) {
+		struct ieee80211_mle_per_sta_profile *prof = (void *)sub->data;
+		ssize_t sta_prof_len;
+		u16 control;
+
+		if (sub->id != IEEE80211_MLE_SUBELEM_PER_STA_PROFILE)
+			continue;
+
+		if (!ieee80211_mle_basic_sta_prof_size_ok(sub->data,
+							  sub->datalen))
+			return;
+
+		control = le16_to_cpu(prof->control);
+
+		if (link_id != u16_get_bits(control,
+					    IEEE80211_MLE_STA_CONTROL_LINK_ID))
+			continue;
+
+		if (!(control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE))
+			return;
+
+		/* the sub element can be fragmented */
+		sta_prof_len =
+			cfg80211_defragment_element(sub,
+						    (u8 *)ml, ml_len,
+						    elems_parse->scratch_pos,
+						    elems_parse->scratch +
+							elems_parse->scratch_len -
+							elems_parse->scratch_pos,
+						    IEEE80211_MLE_SUBELEM_FRAGMENT);
+
+		if (sta_prof_len < 0)
+			return;
+
+		elems->prof = (void *)elems_parse->scratch_pos;
+		elems->sta_prof_len = sta_prof_len;
+		elems_parse->scratch_pos += sta_prof_len;
+
+		return;
+	}
+}
+
+static void ieee80211_mle_parse_link(struct ieee80211_elems_parse *elems_parse,
+				     struct ieee80211_elems_parse_params *params)
+{
+	struct ieee802_11_elems *elems = &elems_parse->elems;
+	struct ieee80211_mle_per_sta_profile *prof;
+	struct ieee80211_elems_parse_params sub = {
+		.mode = params->mode,
+		.action = params->action,
+		.from_ap = params->from_ap,
+		.link_id = -1,
+	};
+	ssize_t ml_len = elems->ml_basic_len;
+	const struct element *non_inherit = NULL;
+	const u8 *end;
+
+	ml_len = cfg80211_defragment_element(elems_parse->ml_basic_elem,
+					     elems->ie_start,
+					     elems->total_len,
+					     elems_parse->scratch_pos,
+					     elems_parse->scratch +
+						elems_parse->scratch_len -
+						elems_parse->scratch_pos,
+					     WLAN_EID_FRAGMENT);
+
+	if (ml_len < 0)
+		return;
+
+	elems->ml_basic = (const void *)elems_parse->scratch_pos;
+	elems->ml_basic_len = ml_len;
+	elems_parse->scratch_pos += ml_len;
+
+	if (params->link_id == -1)
+		return;
+
+	ieee80211_mle_get_sta_prof(elems_parse, params->link_id);
+	prof = elems->prof;
+
+	if (!prof)
+		return;
+
+	/* check if we have the 4 bytes for the fixed part in assoc response */
+	if (elems->sta_prof_len < sizeof(*prof) + prof->sta_info_len - 1 + 4) {
+		elems->prof = NULL;
+		elems->sta_prof_len = 0;
+		return;
+	}
+
+	/*
+	 * Skip the capability information and the status code that are expected
+	 * as part of the station profile in association response frames. Note
+	 * the -1 is because the 'sta_info_len' is accounted to as part of the
+	 * per-STA profile, but not part of the 'u8 variable[]' portion.
+	 */
+	sub.start = prof->variable + prof->sta_info_len - 1 + 4;
+	end = (const u8 *)prof + elems->sta_prof_len;
+	sub.len = end - sub.start;
+
+	non_inherit = cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE,
+					     sub.start, sub.len);
+	_ieee802_11_parse_elems_full(&sub, elems_parse, non_inherit);
+}
+
+static void
+ieee80211_mle_defrag_reconf(struct ieee80211_elems_parse *elems_parse)
+{
+	struct ieee802_11_elems *elems = &elems_parse->elems;
+	ssize_t ml_len;
+
+	ml_len = cfg80211_defragment_element(elems_parse->ml_reconf_elem,
+					     elems->ie_start,
+					     elems->total_len,
+					     elems_parse->scratch_pos,
+					     elems_parse->scratch +
+						elems_parse->scratch_len -
+						elems_parse->scratch_pos,
+					     WLAN_EID_FRAGMENT);
+	if (ml_len < 0)
+		return;
+	elems->ml_reconf = (void *)elems_parse->scratch_pos;
+	elems->ml_reconf_len = ml_len;
+	elems_parse->scratch_pos += ml_len;
+}
+
+struct ieee802_11_elems *
+ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params)
+{
+	struct ieee80211_elems_parse *elems_parse;
+	struct ieee802_11_elems *elems;
+	const struct element *non_inherit = NULL;
+	u8 *nontransmitted_profile;
+	int nontransmitted_profile_len = 0;
+	size_t scratch_len = 3 * params->len;
+
+	BUILD_BUG_ON(offsetof(typeof(*elems_parse), elems) != 0);
+
+	elems_parse = kzalloc(struct_size(elems_parse, scratch, scratch_len),
+			      GFP_ATOMIC);
+	if (!elems_parse)
+		return NULL;
+
+	elems_parse->scratch_len = scratch_len;
+	elems_parse->scratch_pos = elems_parse->scratch;
+
+	elems = &elems_parse->elems;
+	elems->ie_start = params->start;
+	elems->total_len = params->len;
+
+	nontransmitted_profile = elems_parse->scratch_pos;
+	nontransmitted_profile_len =
+		ieee802_11_find_bssid_profile(params->start, params->len,
+					      elems, params->bss,
+					      nontransmitted_profile);
+	elems_parse->scratch_pos += nontransmitted_profile_len;
+	non_inherit = cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE,
+					     nontransmitted_profile,
+					     nontransmitted_profile_len);
+
+	elems->crc = _ieee802_11_parse_elems_full(params, elems_parse,
+						  non_inherit);
+
+	/* Override with nontransmitted profile, if found */
+	if (nontransmitted_profile_len) {
+		struct ieee80211_elems_parse_params sub = {
+			.mode = params->mode,
+			.start = nontransmitted_profile,
+			.len = nontransmitted_profile_len,
+			.action = params->action,
+			.link_id = params->link_id,
+		};
+
+		_ieee802_11_parse_elems_full(&sub, elems_parse, NULL);
+	}
+
+	ieee80211_mle_parse_link(elems_parse, params);
+
+	ieee80211_mle_defrag_reconf(elems_parse);
+
+	if (elems->tim && !elems->parse_error) {
+		const struct ieee80211_tim_ie *tim_ie = elems->tim;
+
+		elems->dtim_period = tim_ie->dtim_period;
+		elems->dtim_count = tim_ie->dtim_count;
+	}
+
+	/* Override DTIM period and count if needed */
+	if (elems->bssid_index &&
+	    elems->bssid_index_len >=
+	    offsetofend(struct ieee80211_bssid_index, dtim_period))
+		elems->dtim_period = elems->bssid_index->dtim_period;
+
+	if (elems->bssid_index &&
+	    elems->bssid_index_len >=
+	    offsetofend(struct ieee80211_bssid_index, dtim_count))
+		elems->dtim_count = elems->bssid_index->dtim_count;
+
+	return elems;
+}
+EXPORT_SYMBOL_IF_KUNIT(ieee802_11_parse_elems_full);
+
+int ieee80211_parse_bitrates(enum nl80211_chan_width width,
+			     const struct ieee80211_supported_band *sband,
+			     const u8 *srates, int srates_len, u32 *rates)
+{
+	u32 rate_flags = ieee80211_chanwidth_rate_flags(width);
+	struct ieee80211_rate *br;
+	int brate, rate, i, j, count = 0;
+
+	*rates = 0;
+
+	for (i = 0; i < srates_len; i++) {
+		rate = srates[i] & 0x7f;
+
+		for (j = 0; j < sband->n_bitrates; j++) {
+			br = &sband->bitrates[j];
+			if ((rate_flags & br->flags) != rate_flags)
+				continue;
+
+			brate = DIV_ROUND_UP(br->bitrate, 5);
+			if (brate == rate) {
+				*rates |= BIT(j);
+				count++;
+				break;
+			}
+		}
+	}
+	return count;
+}