--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * IEEE 802.11 EHT definitions
+ *
+ * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+ * <jkmaline@cc.hut.fi>
+ * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright (c) 2005, Devicescape Software, Inc.
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
+ * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright (c) 2018 - 2025 Intel Corporation
+ */
+
+#ifndef LINUX_IEEE80211_EHT_H
+#define LINUX_IEEE80211_EHT_H
+
+#include <linux/types.h>
+#include <linux/if_ether.h>
+/* need HE definitions for the inlines here */
+#include <linux/ieee80211-he.h>
+
+#define IEEE80211_TTLM_MAX_CNT 2
+#define IEEE80211_TTLM_CONTROL_DIRECTION 0x03
+#define IEEE80211_TTLM_CONTROL_DEF_LINK_MAP 0x04
+#define IEEE80211_TTLM_CONTROL_SWITCH_TIME_PRESENT 0x08
+#define IEEE80211_TTLM_CONTROL_EXPECTED_DUR_PRESENT 0x10
+#define IEEE80211_TTLM_CONTROL_LINK_MAP_SIZE 0x20
+
+#define IEEE80211_TTLM_DIRECTION_DOWN 0
+#define IEEE80211_TTLM_DIRECTION_UP 1
+#define IEEE80211_TTLM_DIRECTION_BOTH 2
+
+/**
+ * struct ieee80211_ttlm_elem - TID-To-Link Mapping element
+ *
+ * Defined in section 9.4.2.314 in P802.11be_D4
+ *
+ * @control: the first part of control field
+ * @optional: the second part of control field
+ */
+struct ieee80211_ttlm_elem {
+ u8 control;
+ u8 optional[];
+} __packed;
+
+#define IEEE80211_EHT_MCS_NSS_RX 0x0f
+#define IEEE80211_EHT_MCS_NSS_TX 0xf0
+
+/**
+ * struct ieee80211_eht_mcs_nss_supp_20mhz_only - EHT 20MHz only station max
+ * supported NSS for per MCS.
+ *
+ * For each field below, bits 0 - 3 indicate the maximal number of spatial
+ * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
+ * for Tx.
+ *
+ * @rx_tx_mcs7_max_nss: indicates the maximum number of spatial streams
+ * supported for reception and the maximum number of spatial streams
+ * supported for transmission for MCS 0 - 7.
+ * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
+ * supported for reception and the maximum number of spatial streams
+ * supported for transmission for MCS 8 - 9.
+ * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
+ * supported for reception and the maximum number of spatial streams
+ * supported for transmission for MCS 10 - 11.
+ * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
+ * supported for reception and the maximum number of spatial streams
+ * supported for transmission for MCS 12 - 13.
+ * @rx_tx_max_nss: array of the previous fields for easier loop access
+ */
+struct ieee80211_eht_mcs_nss_supp_20mhz_only {
+ union {
+ struct {
+ u8 rx_tx_mcs7_max_nss;
+ u8 rx_tx_mcs9_max_nss;
+ u8 rx_tx_mcs11_max_nss;
+ u8 rx_tx_mcs13_max_nss;
+ };
+ u8 rx_tx_max_nss[4];
+ };
+};
+
+/**
+ * struct ieee80211_eht_mcs_nss_supp_bw - EHT max supported NSS per MCS (except
+ * 20MHz only stations).
+ *
+ * For each field below, bits 0 - 3 indicate the maximal number of spatial
+ * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
+ * for Tx.
+ *
+ * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
+ * supported for reception and the maximum number of spatial streams
+ * supported for transmission for MCS 0 - 9.
+ * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
+ * supported for reception and the maximum number of spatial streams
+ * supported for transmission for MCS 10 - 11.
+ * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
+ * supported for reception and the maximum number of spatial streams
+ * supported for transmission for MCS 12 - 13.
+ * @rx_tx_max_nss: array of the previous fields for easier loop access
+ */
+struct ieee80211_eht_mcs_nss_supp_bw {
+ union {
+ struct {
+ u8 rx_tx_mcs9_max_nss;
+ u8 rx_tx_mcs11_max_nss;
+ u8 rx_tx_mcs13_max_nss;
+ };
+ u8 rx_tx_max_nss[3];
+ };
+};
+
+/**
+ * struct ieee80211_eht_cap_elem_fixed - EHT capabilities fixed data
+ *
+ * This structure is the "EHT Capabilities element" fixed fields as
+ * described in P802.11be_D2.0 section 9.4.2.313.
+ *
+ * @mac_cap_info: MAC capabilities, see IEEE80211_EHT_MAC_CAP*
+ * @phy_cap_info: PHY capabilities, see IEEE80211_EHT_PHY_CAP*
+ */
+struct ieee80211_eht_cap_elem_fixed {
+ u8 mac_cap_info[2];
+ u8 phy_cap_info[9];
+} __packed;
+
+/**
+ * struct ieee80211_eht_cap_elem - EHT capabilities element
+ * @fixed: fixed parts, see &ieee80211_eht_cap_elem_fixed
+ * @optional: optional parts
+ */
+struct ieee80211_eht_cap_elem {
+ struct ieee80211_eht_cap_elem_fixed fixed;
+
+ /*
+ * Followed by:
+ * Supported EHT-MCS And NSS Set field: 4, 3, 6 or 9 octets.
+ * EHT PPE Thresholds field: variable length.
+ */
+ u8 optional[];
+} __packed;
+
+#define IEEE80211_EHT_OPER_INFO_PRESENT 0x01
+#define IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT 0x02
+#define IEEE80211_EHT_OPER_EHT_DEF_PE_DURATION 0x04
+#define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_LIMIT 0x08
+#define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_EXP_MASK 0x30
+#define IEEE80211_EHT_OPER_MCS15_DISABLE 0x40
+
+/**
+ * struct ieee80211_eht_operation - eht operation element
+ *
+ * This structure is the "EHT Operation Element" fields as
+ * described in P802.11be_D2.0 section 9.4.2.311
+ *
+ * @params: EHT operation element parameters. See &IEEE80211_EHT_OPER_*
+ * @basic_mcs_nss: indicates the EHT-MCSs for each number of spatial streams in
+ * EHT PPDUs that are supported by all EHT STAs in the BSS in transmit and
+ * receive.
+ * @optional: optional parts
+ */
+struct ieee80211_eht_operation {
+ u8 params;
+ struct ieee80211_eht_mcs_nss_supp_20mhz_only basic_mcs_nss;
+ u8 optional[];
+} __packed;
+
+/**
+ * struct ieee80211_eht_operation_info - eht operation information
+ *
+ * @control: EHT operation information control.
+ * @ccfs0: defines a channel center frequency for a 20, 40, 80, 160, or 320 MHz
+ * EHT BSS.
+ * @ccfs1: defines a channel center frequency for a 160 or 320 MHz EHT BSS.
+ * @optional: optional parts
+ */
+struct ieee80211_eht_operation_info {
+ u8 control;
+ u8 ccfs0;
+ u8 ccfs1;
+ u8 optional[];
+} __packed;
+
+/* EHT MAC capabilities as defined in P802.11be_D2.0 section 9.4.2.313.2 */
+#define IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS 0x01
+#define IEEE80211_EHT_MAC_CAP0_OM_CONTROL 0x02
+#define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1 0x04
+#define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE2 0x08
+#define IEEE80211_EHT_MAC_CAP0_RESTRICTED_TWT 0x10
+#define IEEE80211_EHT_MAC_CAP0_SCS_TRAFFIC_DESC 0x20
+#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK 0xc0
+#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895 0
+#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991 1
+#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454 2
+
+#define IEEE80211_EHT_MAC_CAP1_MAX_AMPDU_LEN_MASK 0x01
+#define IEEE80211_EHT_MAC_CAP1_EHT_TRS 0x02
+#define IEEE80211_EHT_MAC_CAP1_TXOP_RET 0x04
+#define IEEE80211_EHT_MAC_CAP1_TWO_BQRS 0x08
+#define IEEE80211_EHT_MAC_CAP1_EHT_LINK_ADAPT_MASK 0x30
+#define IEEE80211_EHT_MAC_CAP1_UNSOL_EPCS_PRIO_ACCESS 0x40
+
+/* EHT PHY capabilities as defined in P802.11be_D2.0 section 9.4.2.313.3 */
+#define IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ 0x02
+#define IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ 0x04
+#define IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI 0x08
+#define IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO 0x10
+#define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER 0x20
+#define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE 0x40
+
+/* EHT beamformee number of spatial streams <= 80MHz is split */
+#define IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK 0x80
+#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK 0x03
+
+#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK 0x1c
+#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK 0xe0
+
+#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK 0x07
+#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK 0x38
+
+/* EHT number of sounding dimensions for 320MHz is split */
+#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK 0xc0
+#define IEEE80211_EHT_PHY_CAP3_SOUNDING_DIM_320MHZ_MASK 0x01
+#define IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK 0x02
+#define IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK 0x04
+#define IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK 0x08
+#define IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK 0x10
+#define IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK 0x20
+#define IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK 0x40
+#define IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK 0x80
+
+#define IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO 0x01
+#define IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP 0x02
+#define IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP 0x04
+#define IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI 0x08
+#define IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK 0xf0
+
+#define IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK 0x01
+#define IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP 0x02
+#define IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP 0x04
+#define IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT 0x08
+#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK 0x30
+#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US 0
+#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US 1
+#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US 2
+#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US 3
+
+/* Maximum number of supported EHT LTF is split */
+#define IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK 0xc0
+#define IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF 0x40
+#define IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK 0x07
+
+#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_80MHZ 0x08
+#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_160MHZ 0x30
+#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_320MHZ 0x40
+#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK 0x78
+#define IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP 0x80
+
+#define IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW 0x01
+#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ 0x02
+#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ 0x04
+#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ 0x08
+#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ 0x10
+#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ 0x20
+#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ 0x40
+#define IEEE80211_EHT_PHY_CAP7_TB_SOUNDING_FDBK_RATE_LIMIT 0x80
+
+#define IEEE80211_EHT_PHY_CAP8_RX_1024QAM_WIDER_BW_DL_OFDMA 0x01
+#define IEEE80211_EHT_PHY_CAP8_RX_4096QAM_WIDER_BW_DL_OFDMA 0x02
+
+/*
+ * EHT operation channel width as defined in P802.11be_D2.0 section 9.4.2.311
+ */
+#define IEEE80211_EHT_OPER_CHAN_WIDTH 0x7
+#define IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ 0
+#define IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ 1
+#define IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ 2
+#define IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ 3
+#define IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ 4
+
+/* Calculate 802.11be EHT capabilities IE Tx/Rx EHT MCS NSS Support Field size */
+static inline u8
+ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
+ const struct ieee80211_eht_cap_elem_fixed *eht_cap,
+ bool from_ap)
+{
+ u8 count = 0;
+
+ /* on 2.4 GHz, if it supports 40 MHz, the result is 3 */
+ if (he_cap->phy_cap_info[0] &
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)
+ return 3;
+
+ /* on 2.4 GHz, these three bits are reserved, so should be 0 */
+ if (he_cap->phy_cap_info[0] &
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G)
+ count += 3;
+
+ if (he_cap->phy_cap_info[0] &
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
+ count += 3;
+
+ if (eht_cap->phy_cap_info[0] & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
+ count += 3;
+
+ if (count)
+ return count;
+
+ return from_ap ? 3 : 4;
+}
+
+/* 802.11be EHT PPE Thresholds */
+#define IEEE80211_EHT_PPE_THRES_NSS_POS 0
+#define IEEE80211_EHT_PPE_THRES_NSS_MASK 0xf
+#define IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK 0x1f0
+#define IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE 3
+#define IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE 9
+
+/*
+ * Calculate 802.11be EHT capabilities IE EHT field size
+ */
+static inline u8
+ieee80211_eht_ppe_size(u16 ppe_thres_hdr, const u8 *phy_cap_info)
+{
+ u32 n;
+
+ if (!(phy_cap_info[5] &
+ IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT))
+ return 0;
+
+ n = hweight16(ppe_thres_hdr &
+ IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
+ n *= 1 + u16_get_bits(ppe_thres_hdr, IEEE80211_EHT_PPE_THRES_NSS_MASK);
+
+ /*
+ * Each pair is 6 bits, and we need to add the 9 "header" bits to the
+ * total size.
+ */
+ n = n * IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE * 2 +
+ IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
+ return DIV_ROUND_UP(n, 8);
+}
+
+static inline bool
+ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len,
+ bool from_ap)
+{
+ const struct ieee80211_eht_cap_elem_fixed *elem = (const void *)data;
+ u8 needed = sizeof(struct ieee80211_eht_cap_elem_fixed);
+
+ if (len < needed || !he_capa)
+ return false;
+
+ needed += ieee80211_eht_mcs_nss_size((const void *)he_capa,
+ (const void *)data,
+ from_ap);
+ if (len < needed)
+ return false;
+
+ if (elem->phy_cap_info[5] &
+ IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
+ u16 ppe_thres_hdr;
+
+ if (len < needed + sizeof(ppe_thres_hdr))
+ return false;
+
+ ppe_thres_hdr = get_unaligned_le16(data + needed);
+ needed += ieee80211_eht_ppe_size(ppe_thres_hdr,
+ elem->phy_cap_info);
+ }
+
+ return len >= needed;
+}
+
+static inline bool
+ieee80211_eht_oper_size_ok(const u8 *data, u8 len)
+{
+ const struct ieee80211_eht_operation *elem = (const void *)data;
+ u8 needed = sizeof(*elem);
+
+ if (len < needed)
+ return false;
+
+ if (elem->params & IEEE80211_EHT_OPER_INFO_PRESENT) {
+ needed += 3;
+
+ if (elem->params &
+ IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)
+ needed += 2;
+ }
+
+ return len >= needed;
+}
+
+/* must validate ieee80211_eht_oper_size_ok() first */
+static inline u16
+ieee80211_eht_oper_dis_subchan_bitmap(const struct ieee80211_eht_operation *eht_oper)
+{
+ const struct ieee80211_eht_operation_info *info =
+ (const void *)eht_oper->optional;
+
+ if (!(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT))
+ return 0;
+
+ if (!(eht_oper->params & IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT))
+ return 0;
+
+ return get_unaligned_le16(info->optional);
+}
+
+#define IEEE80211_BW_IND_DIS_SUBCH_PRESENT BIT(1)
+
+struct ieee80211_bandwidth_indication {
+ u8 params;
+ struct ieee80211_eht_operation_info info;
+} __packed;
+
+static inline bool
+ieee80211_bandwidth_indication_size_ok(const u8 *data, u8 len)
+{
+ const struct ieee80211_bandwidth_indication *bwi = (const void *)data;
+
+ if (len < sizeof(*bwi))
+ return false;
+
+ if (bwi->params & IEEE80211_BW_IND_DIS_SUBCH_PRESENT &&
+ len < sizeof(*bwi) + 2)
+ return false;
+
+ return true;
+}
+
+/* Protected EHT action codes */
+enum ieee80211_protected_eht_actioncode {
+ WLAN_PROTECTED_EHT_ACTION_TTLM_REQ = 0,
+ WLAN_PROTECTED_EHT_ACTION_TTLM_RES = 1,
+ WLAN_PROTECTED_EHT_ACTION_TTLM_TEARDOWN = 2,
+ WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_REQ = 3,
+ WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_RESP = 4,
+ WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_TEARDOWN = 5,
+ WLAN_PROTECTED_EHT_ACTION_EML_OP_MODE_NOTIF = 6,
+ WLAN_PROTECTED_EHT_ACTION_LINK_RECOMMEND = 7,
+ WLAN_PROTECTED_EHT_ACTION_ML_OP_UPDATE_REQ = 8,
+ WLAN_PROTECTED_EHT_ACTION_ML_OP_UPDATE_RESP = 9,
+ WLAN_PROTECTED_EHT_ACTION_LINK_RECONFIG_NOTIF = 10,
+ WLAN_PROTECTED_EHT_ACTION_LINK_RECONFIG_REQ = 11,
+ WLAN_PROTECTED_EHT_ACTION_LINK_RECONFIG_RESP = 12,
+};
+
+/* multi-link device */
+#define IEEE80211_MLD_MAX_NUM_LINKS 15
+
+#define IEEE80211_ML_CONTROL_TYPE 0x0007
+#define IEEE80211_ML_CONTROL_TYPE_BASIC 0
+#define IEEE80211_ML_CONTROL_TYPE_PREQ 1
+#define IEEE80211_ML_CONTROL_TYPE_RECONF 2
+#define IEEE80211_ML_CONTROL_TYPE_TDLS 3
+#define IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS 4
+#define IEEE80211_ML_CONTROL_PRESENCE_MASK 0xfff0
+
+struct ieee80211_multi_link_elem {
+ __le16 control;
+ u8 variable[];
+} __packed;
+
+#define IEEE80211_MLC_BASIC_PRES_LINK_ID 0x0010
+#define IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT 0x0020
+#define IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY 0x0040
+#define IEEE80211_MLC_BASIC_PRES_EML_CAPA 0x0080
+#define IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP 0x0100
+#define IEEE80211_MLC_BASIC_PRES_MLD_ID 0x0200
+#define IEEE80211_MLC_BASIC_PRES_EXT_MLD_CAPA_OP 0x0400
+
+#define IEEE80211_MED_SYNC_DELAY_DURATION 0x00ff
+#define IEEE80211_MED_SYNC_DELAY_SYNC_OFDM_ED_THRESH 0x0f00
+#define IEEE80211_MED_SYNC_DELAY_SYNC_MAX_NUM_TXOPS 0xf000
+
+/*
+ * Described in P802.11be_D3.0
+ * dot11MSDTimerDuration should default to 5484 (i.e. 171.375)
+ * dot11MSDOFDMEDthreshold defaults to -72 (i.e. 0)
+ * dot11MSDTXOPMAX defaults to 1
+ */
+#define IEEE80211_MED_SYNC_DELAY_DEFAULT 0x10ac
+
+#define IEEE80211_EML_CAP_EMLSR_SUPP 0x0001
+#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY 0x000e
+#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_0US 0
+#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US 1
+#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_64US 2
+#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_128US 3
+#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_256US 4
+#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY 0x0070
+#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_0US 0
+#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_16US 1
+#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_32US 2
+#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US 3
+#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_128US 4
+#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_256US 5
+#define IEEE80211_EML_CAP_EMLMR_SUPPORT 0x0080
+#define IEEE80211_EML_CAP_EMLMR_DELAY 0x0700
+#define IEEE80211_EML_CAP_EMLMR_DELAY_0US 0
+#define IEEE80211_EML_CAP_EMLMR_DELAY_32US 1
+#define IEEE80211_EML_CAP_EMLMR_DELAY_64US 2
+#define IEEE80211_EML_CAP_EMLMR_DELAY_128US 3
+#define IEEE80211_EML_CAP_EMLMR_DELAY_256US 4
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT 0x7800
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_0 0
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128US 1
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_256US 2
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_512US 3
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_1TU 4
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_2TU 5
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_4TU 6
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_8TU 7
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_16TU 8
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_32TU 9
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_64TU 10
+#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU 11
+
+#define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS 0x000f
+#define IEEE80211_MLD_CAP_OP_SRS_SUPPORT 0x0010
+#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060
+#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_NO_SUPP 0
+#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1
+#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_RESERVED 2
+#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_DIFF 3
+#define IEEE80211_MLD_CAP_OP_FREQ_SEP_TYPE_IND 0x0f80
+#define IEEE80211_MLD_CAP_OP_AAR_SUPPORT 0x1000
+#define IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT 0x2000
+#define IEEE80211_MLD_CAP_OP_ALIGNED_TWT_SUPPORT 0x4000
+
+struct ieee80211_mle_basic_common_info {
+ u8 len;
+ u8 mld_mac_addr[ETH_ALEN];
+ u8 variable[];
+} __packed;
+
+#define IEEE80211_MLC_PREQ_PRES_MLD_ID 0x0010
+
+struct ieee80211_mle_preq_common_info {
+ u8 len;
+ u8 variable[];
+} __packed;
+
+#define IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR 0x0010
+#define IEEE80211_MLC_RECONF_PRES_EML_CAPA 0x0020
+#define IEEE80211_MLC_RECONF_PRES_MLD_CAPA_OP 0x0040
+#define IEEE80211_MLC_RECONF_PRES_EXT_MLD_CAPA_OP 0x0080
+
+/* no fixed fields in RECONF */
+
+struct ieee80211_mle_tdls_common_info {
+ u8 len;
+ u8 ap_mld_mac_addr[ETH_ALEN];
+} __packed;
+
+#define IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR 0x0010
+
+/* no fixed fields in PRIO_ACCESS */
+
+/**
+ * ieee80211_mle_common_size - check multi-link element common size
+ * @data: multi-link element, must already be checked for size using
+ * ieee80211_mle_size_ok()
+ * Return: the size of the multi-link element's "common" subfield
+ */
+static inline u8 ieee80211_mle_common_size(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+
+ switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
+ case IEEE80211_ML_CONTROL_TYPE_BASIC:
+ case IEEE80211_ML_CONTROL_TYPE_PREQ:
+ case IEEE80211_ML_CONTROL_TYPE_TDLS:
+ case IEEE80211_ML_CONTROL_TYPE_RECONF:
+ case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
+ /*
+ * The length is the first octet pointed by mle->variable so no
+ * need to add anything
+ */
+ break;
+ default:
+ WARN_ON(1);
+ return 0;
+ }
+
+ return sizeof(*mle) + mle->variable[0];
+}
+
+/**
+ * ieee80211_mle_get_link_id - returns the link ID
+ * @data: the basic multi link element
+ * Return: the link ID, or -1 if not present
+ *
+ * The element is assumed to be of the correct type (BASIC) and big enough,
+ * this must be checked using ieee80211_mle_type_ok().
+ */
+static inline int ieee80211_mle_get_link_id(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+ const u8 *common = mle->variable;
+
+ /* common points now at the beginning of ieee80211_mle_basic_common_info */
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+
+ if (!(control & IEEE80211_MLC_BASIC_PRES_LINK_ID))
+ return -1;
+
+ return *common;
+}
+
+/**
+ * ieee80211_mle_get_bss_param_ch_cnt - returns the BSS parameter change count
+ * @data: pointer to the basic multi link element
+ * Return: the BSS Parameter Change Count field value, or -1 if not present
+ *
+ * The element is assumed to be of the correct type (BASIC) and big enough,
+ * this must be checked using ieee80211_mle_type_ok().
+ */
+static inline int
+ieee80211_mle_get_bss_param_ch_cnt(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+ const u8 *common = mle->variable;
+
+ /* common points now at the beginning of ieee80211_mle_basic_common_info */
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+
+ if (!(control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT))
+ return -1;
+
+ if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+ common += 1;
+
+ return *common;
+}
+
+/**
+ * ieee80211_mle_get_eml_med_sync_delay - returns the medium sync delay
+ * @data: pointer to the multi-link element
+ * Return: the medium synchronization delay field value from the multi-link
+ * element, or the default value (%IEEE80211_MED_SYNC_DELAY_DEFAULT)
+ * if not present
+ *
+ * The element is assumed to be of the correct type (BASIC) and big enough,
+ * this must be checked using ieee80211_mle_type_ok().
+ */
+static inline u16 ieee80211_mle_get_eml_med_sync_delay(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+ const u8 *common = mle->variable;
+
+ /* common points now at the beginning of ieee80211_mle_basic_common_info */
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+
+ if (!(control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY))
+ return IEEE80211_MED_SYNC_DELAY_DEFAULT;
+
+ if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+ common += 1;
+
+ return get_unaligned_le16(common);
+}
+
+/**
+ * ieee80211_mle_get_eml_cap - returns the EML capability
+ * @data: pointer to the multi-link element
+ * Return: the EML capability field value from the multi-link element,
+ * or 0 if not present
+ *
+ * The element is assumed to be of the correct type (BASIC) and big enough,
+ * this must be checked using ieee80211_mle_type_ok().
+ */
+static inline u16 ieee80211_mle_get_eml_cap(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+ const u8 *common = mle->variable;
+
+ /* common points now at the beginning of ieee80211_mle_basic_common_info */
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+
+ if (!(control & IEEE80211_MLC_BASIC_PRES_EML_CAPA))
+ return 0;
+
+ if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
+ common += 2;
+
+ return get_unaligned_le16(common);
+}
+
+/**
+ * ieee80211_mle_get_mld_capa_op - returns the MLD capabilities and operations.
+ * @data: pointer to the multi-link element
+ * Return: the MLD capabilities and operations field value from the multi-link
+ * element, or 0 if not present
+ *
+ * The element is assumed to be of the correct type (BASIC) and big enough,
+ * this must be checked using ieee80211_mle_type_ok().
+ */
+static inline u16 ieee80211_mle_get_mld_capa_op(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+ const u8 *common = mle->variable;
+
+ /*
+ * common points now at the beginning of
+ * ieee80211_mle_basic_common_info
+ */
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+
+ if (!(control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP))
+ return 0;
+
+ if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
+ common += 2;
+
+ return get_unaligned_le16(common);
+}
+
+/* Defined in Figure 9-1074t in P802.11be_D7.0 */
+#define IEEE80211_EHT_ML_EXT_MLD_CAPA_OP_PARAM_UPDATE 0x0001
+#define IEEE80211_EHT_ML_EXT_MLD_CAPA_OP_RECO_MAX_LINKS_MASK 0x001e
+#define IEEE80211_EHT_ML_EXT_MLD_CAPA_NSTR_UPDATE 0x0020
+#define IEEE80211_EHT_ML_EXT_MLD_CAPA_EMLSR_ENA_ON_ONE_LINK 0x0040
+#define IEEE80211_EHT_ML_EXT_MLD_CAPA_BTM_MLD_RECO_MULTI_AP 0x0080
+
+/**
+ * ieee80211_mle_get_ext_mld_capa_op - returns the extended MLD capabilities
+ * and operations.
+ * @data: pointer to the multi-link element
+ * Return: the extended MLD capabilities and operations field value from
+ * the multi-link element, or 0 if not present
+ *
+ * The element is assumed to be of the correct type (BASIC) and big enough,
+ * this must be checked using ieee80211_mle_type_ok().
+ */
+static inline u16 ieee80211_mle_get_ext_mld_capa_op(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+ const u8 *common = mle->variable;
+
+ /*
+ * common points now at the beginning of
+ * ieee80211_mle_basic_common_info
+ */
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+
+ if (!(control & IEEE80211_MLC_BASIC_PRES_EXT_MLD_CAPA_OP))
+ return 0;
+
+ if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_MLD_ID)
+ common += 1;
+
+ return get_unaligned_le16(common);
+}
+
+/**
+ * ieee80211_mle_get_mld_id - returns the MLD ID
+ * @data: pointer to the multi-link element
+ * Return: The MLD ID in the given multi-link element, or 0 if not present
+ *
+ * The element is assumed to be of the correct type (BASIC) and big enough,
+ * this must be checked using ieee80211_mle_type_ok().
+ */
+static inline u8 ieee80211_mle_get_mld_id(const u8 *data)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control = le16_to_cpu(mle->control);
+ const u8 *common = mle->variable;
+
+ /*
+ * common points now at the beginning of
+ * ieee80211_mle_basic_common_info
+ */
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+
+ if (!(control & IEEE80211_MLC_BASIC_PRES_MLD_ID))
+ return 0;
+
+ if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
+ common += 2;
+
+ return *common;
+}
+
+/**
+ * ieee80211_mle_size_ok - validate multi-link element size
+ * @data: pointer to the element data
+ * @len: length of the containing element
+ * Return: whether or not the multi-link element size is OK
+ */
+static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u8 fixed = sizeof(*mle);
+ u8 common = 0;
+ bool check_common_len = false;
+ u16 control;
+
+ if (!data || len < fixed)
+ return false;
+
+ control = le16_to_cpu(mle->control);
+
+ switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
+ case IEEE80211_ML_CONTROL_TYPE_BASIC:
+ common += sizeof(struct ieee80211_mle_basic_common_info);
+ check_common_len = true;
+ if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
+ common += 2;
+ if (control & IEEE80211_MLC_BASIC_PRES_MLD_ID)
+ common += 1;
+ if (control & IEEE80211_MLC_BASIC_PRES_EXT_MLD_CAPA_OP)
+ common += 2;
+ break;
+ case IEEE80211_ML_CONTROL_TYPE_PREQ:
+ common += sizeof(struct ieee80211_mle_preq_common_info);
+ if (control & IEEE80211_MLC_PREQ_PRES_MLD_ID)
+ common += 1;
+ check_common_len = true;
+ break;
+ case IEEE80211_ML_CONTROL_TYPE_RECONF:
+ if (control & IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR)
+ common += ETH_ALEN;
+ if (control & IEEE80211_MLC_RECONF_PRES_EML_CAPA)
+ common += 2;
+ if (control & IEEE80211_MLC_RECONF_PRES_MLD_CAPA_OP)
+ common += 2;
+ if (control & IEEE80211_MLC_RECONF_PRES_EXT_MLD_CAPA_OP)
+ common += 2;
+ break;
+ case IEEE80211_ML_CONTROL_TYPE_TDLS:
+ common += sizeof(struct ieee80211_mle_tdls_common_info);
+ check_common_len = true;
+ break;
+ case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
+ common = ETH_ALEN + 1;
+ break;
+ default:
+ /* we don't know this type */
+ return true;
+ }
+
+ if (len < fixed + common)
+ return false;
+
+ if (!check_common_len)
+ return true;
+
+ /* if present, common length is the first octet there */
+ return mle->variable[0] >= common;
+}
+
+/**
+ * ieee80211_mle_type_ok - validate multi-link element type and size
+ * @data: pointer to the element data
+ * @type: expected type of the element
+ * @len: length of the containing element
+ * Return: whether or not the multi-link element type matches and size is OK
+ */
+static inline bool ieee80211_mle_type_ok(const u8 *data, u8 type, size_t len)
+{
+ const struct ieee80211_multi_link_elem *mle = (const void *)data;
+ u16 control;
+
+ if (!ieee80211_mle_size_ok(data, len))
+ return false;
+
+ control = le16_to_cpu(mle->control);
+
+ if (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE) == type)
+ return true;
+
+ return false;
+}
+
+enum ieee80211_mle_subelems {
+ IEEE80211_MLE_SUBELEM_PER_STA_PROFILE = 0,
+ IEEE80211_MLE_SUBELEM_FRAGMENT = 254,
+};
+
+#define IEEE80211_MLE_STA_CONTROL_LINK_ID 0x000f
+#define IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE 0x0010
+#define IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT 0x0020
+#define IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT 0x0040
+#define IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT 0x0080
+#define IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT 0x0100
+#define IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT 0x0200
+#define IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE 0x0400
+#define IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT 0x0800
+
+struct ieee80211_mle_per_sta_profile {
+ __le16 control;
+ u8 sta_info_len;
+ u8 variable[];
+} __packed;
+
+/**
+ * ieee80211_mle_basic_sta_prof_size_ok - validate basic multi-link element sta
+ * profile size
+ * @data: pointer to the sub element data
+ * @len: length of the containing sub element
+ * Return: %true if the STA profile is large enough, %false otherwise
+ */
+static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data,
+ size_t len)
+{
+ const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
+ u16 control;
+ u8 fixed = sizeof(*prof);
+ u8 info_len = 1;
+
+ if (len < fixed)
+ return false;
+
+ control = le16_to_cpu(prof->control);
+
+ if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
+ info_len += 6;
+ if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
+ info_len += 2;
+ if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
+ info_len += 8;
+ if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
+ info_len += 2;
+ if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
+ control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
+ if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
+ info_len += 2;
+ else
+ info_len += 1;
+ }
+ if (control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT)
+ info_len += 1;
+
+ return prof->sta_info_len >= info_len &&
+ fixed + prof->sta_info_len - 1 <= len;
+}
+
+/**
+ * ieee80211_mle_basic_sta_prof_bss_param_ch_cnt - get per-STA profile BSS
+ * parameter change count
+ * @prof: the per-STA profile, having been checked with
+ * ieee80211_mle_basic_sta_prof_size_ok() for the correct length
+ *
+ * Return: The BSS parameter change count value if present, 0 otherwise.
+ */
+static inline u8
+ieee80211_mle_basic_sta_prof_bss_param_ch_cnt(const struct ieee80211_mle_per_sta_profile *prof)
+{
+ u16 control = le16_to_cpu(prof->control);
+ const u8 *pos = prof->variable;
+
+ if (!(control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT))
+ return 0;
+
+ if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
+ pos += 6;
+ if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
+ pos += 2;
+ if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
+ pos += 8;
+ if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
+ pos += 2;
+ if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
+ control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
+ if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
+ pos += 2;
+ else
+ pos += 1;
+ }
+
+ return *pos;
+}
+
+#define IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID 0x000f
+#define IEEE80211_MLE_STA_RECONF_CONTROL_COMPLETE_PROFILE 0x0010
+#define IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT 0x0020
+#define IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT 0x0040
+#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE 0x0780
+#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_AP_REM 0
+#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_OP_PARAM_UPDATE 1
+#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_ADD_LINK 2
+#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_DEL_LINK 3
+#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_NSTR_STATUS 4
+#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT 0x0800
+
+/**
+ * ieee80211_mle_reconf_sta_prof_size_ok - validate reconfiguration multi-link
+ * element sta profile size.
+ * @data: pointer to the sub element data
+ * @len: length of the containing sub element
+ * Return: %true if the STA profile is large enough, %false otherwise
+ */
+static inline bool ieee80211_mle_reconf_sta_prof_size_ok(const u8 *data,
+ size_t len)
+{
+ const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
+ u16 control;
+ u8 fixed = sizeof(*prof);
+ u8 info_len = 1;
+
+ if (len < fixed)
+ return false;
+
+ control = le16_to_cpu(prof->control);
+
+ if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT)
+ info_len += ETH_ALEN;
+ if (control & IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT)
+ info_len += 2;
+ if (control & IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT)
+ info_len += 2;
+
+ return prof->sta_info_len >= info_len &&
+ fixed + prof->sta_info_len - 1 <= len;
+}
+
+#define IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID 0x000f
+#define IEEE80211_EPCS_ENA_RESP_BODY_LEN 3
+
+static inline bool ieee80211_tid_to_link_map_size_ok(const u8 *data, size_t len)
+{
+ const struct ieee80211_ttlm_elem *t2l = (const void *)data;
+ u8 control, fixed = sizeof(*t2l), elem_len = 0;
+
+ if (len < fixed)
+ return false;
+
+ control = t2l->control;
+
+ if (control & IEEE80211_TTLM_CONTROL_SWITCH_TIME_PRESENT)
+ elem_len += 2;
+ if (control & IEEE80211_TTLM_CONTROL_EXPECTED_DUR_PRESENT)
+ elem_len += 3;
+
+ if (!(control & IEEE80211_TTLM_CONTROL_DEF_LINK_MAP)) {
+ u8 bm_size;
+
+ elem_len += 1;
+ if (len < fixed + elem_len)
+ return false;
+
+ if (control & IEEE80211_TTLM_CONTROL_LINK_MAP_SIZE)
+ bm_size = 1;
+ else
+ bm_size = 2;
+
+ elem_len += hweight8(t2l->optional[0]) * bm_size;
+ }
+
+ return len >= fixed + elem_len;
+}
+
+/**
+ * ieee80211_emlsr_pad_delay_in_us - Fetch the EMLSR Padding delay
+ * in microseconds
+ * @eml_cap: EML capabilities field value from common info field of
+ * the Multi-link element
+ * Return: the EMLSR Padding delay (in microseconds) encoded in the
+ * EML Capabilities field
+ */
+
+static inline u32 ieee80211_emlsr_pad_delay_in_us(u16 eml_cap)
+{
+ /* IEEE Std 802.11be-2024 Table 9-417i—Encoding of the EMLSR
+ * Padding Delay subfield.
+ */
+ u32 pad_delay = u16_get_bits(eml_cap,
+ IEEE80211_EML_CAP_EMLSR_PADDING_DELAY);
+
+ if (!pad_delay ||
+ pad_delay > IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_256US)
+ return 0;
+
+ return 32 * (1 << (pad_delay - 1));
+}
+
+/**
+ * ieee80211_emlsr_trans_delay_in_us - Fetch the EMLSR Transition
+ * delay in microseconds
+ * @eml_cap: EML capabilities field value from common info field of
+ * the Multi-link element
+ * Return: the EMLSR Transition delay (in microseconds) encoded in the
+ * EML Capabilities field
+ */
+
+static inline u32 ieee80211_emlsr_trans_delay_in_us(u16 eml_cap)
+{
+ /* IEEE Std 802.11be-2024 Table 9-417j—Encoding of the EMLSR
+ * Transition Delay subfield.
+ */
+ u32 trans_delay =
+ u16_get_bits(eml_cap,
+ IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY);
+
+ /* invalid values also just use 0 */
+ if (!trans_delay ||
+ trans_delay > IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_256US)
+ return 0;
+
+ return 16 * (1 << (trans_delay - 1));
+}
+
+/**
+ * ieee80211_eml_trans_timeout_in_us - Fetch the EMLSR Transition
+ * timeout value in microseconds
+ * @eml_cap: EML capabilities field value from common info field of
+ * the Multi-link element
+ * Return: the EMLSR Transition timeout (in microseconds) encoded in
+ * the EML Capabilities field
+ */
+
+static inline u32 ieee80211_eml_trans_timeout_in_us(u16 eml_cap)
+{
+ /* IEEE Std 802.11be-2024 Table 9-417m—Encoding of the
+ * Transition Timeout subfield.
+ */
+ u8 timeout = u16_get_bits(eml_cap,
+ IEEE80211_EML_CAP_TRANSITION_TIMEOUT);
+
+ /* invalid values also just use 0 */
+ if (!timeout || timeout > IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU)
+ return 0;
+
+ return 128 * (1 << (timeout - 1));
+}
+
+#define for_each_mle_subelement(_elem, _data, _len) \
+ if (ieee80211_mle_size_ok(_data, _len)) \
+ for_each_element(_elem, \
+ _data + ieee80211_mle_common_size(_data),\
+ _len - ieee80211_mle_common_size(_data))
+
+#endif /* LINUX_IEEE80211_H */
return len;
}
-#define IEEE80211_TTLM_MAX_CNT 2
-#define IEEE80211_TTLM_CONTROL_DIRECTION 0x03
-#define IEEE80211_TTLM_CONTROL_DEF_LINK_MAP 0x04
-#define IEEE80211_TTLM_CONTROL_SWITCH_TIME_PRESENT 0x08
-#define IEEE80211_TTLM_CONTROL_EXPECTED_DUR_PRESENT 0x10
-#define IEEE80211_TTLM_CONTROL_LINK_MAP_SIZE 0x20
-
-#define IEEE80211_TTLM_DIRECTION_DOWN 0
-#define IEEE80211_TTLM_DIRECTION_UP 1
-#define IEEE80211_TTLM_DIRECTION_BOTH 2
-
-/**
- * struct ieee80211_ttlm_elem - TID-To-Link Mapping element
- *
- * Defined in section 9.4.2.314 in P802.11be_D4
- *
- * @control: the first part of control field
- * @optional: the second part of control field
- */
-struct ieee80211_ttlm_elem {
- u8 control;
- u8 optional[];
-} __packed;
-
/**
* struct ieee80211_bss_load_elem - BSS Load elemen
*
#define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
#define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7F
-#define IEEE80211_EHT_MCS_NSS_RX 0x0f
-#define IEEE80211_EHT_MCS_NSS_TX 0xf0
-
-/**
- * struct ieee80211_eht_mcs_nss_supp_20mhz_only - EHT 20MHz only station max
- * supported NSS for per MCS.
- *
- * For each field below, bits 0 - 3 indicate the maximal number of spatial
- * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
- * for Tx.
- *
- * @rx_tx_mcs7_max_nss: indicates the maximum number of spatial streams
- * supported for reception and the maximum number of spatial streams
- * supported for transmission for MCS 0 - 7.
- * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
- * supported for reception and the maximum number of spatial streams
- * supported for transmission for MCS 8 - 9.
- * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
- * supported for reception and the maximum number of spatial streams
- * supported for transmission for MCS 10 - 11.
- * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
- * supported for reception and the maximum number of spatial streams
- * supported for transmission for MCS 12 - 13.
- * @rx_tx_max_nss: array of the previous fields for easier loop access
- */
-struct ieee80211_eht_mcs_nss_supp_20mhz_only {
- union {
- struct {
- u8 rx_tx_mcs7_max_nss;
- u8 rx_tx_mcs9_max_nss;
- u8 rx_tx_mcs11_max_nss;
- u8 rx_tx_mcs13_max_nss;
- };
- u8 rx_tx_max_nss[4];
- };
-};
-
-/**
- * struct ieee80211_eht_mcs_nss_supp_bw - EHT max supported NSS per MCS (except
- * 20MHz only stations).
- *
- * For each field below, bits 0 - 3 indicate the maximal number of spatial
- * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
- * for Tx.
- *
- * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
- * supported for reception and the maximum number of spatial streams
- * supported for transmission for MCS 0 - 9.
- * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
- * supported for reception and the maximum number of spatial streams
- * supported for transmission for MCS 10 - 11.
- * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
- * supported for reception and the maximum number of spatial streams
- * supported for transmission for MCS 12 - 13.
- * @rx_tx_max_nss: array of the previous fields for easier loop access
- */
-struct ieee80211_eht_mcs_nss_supp_bw {
- union {
- struct {
- u8 rx_tx_mcs9_max_nss;
- u8 rx_tx_mcs11_max_nss;
- u8 rx_tx_mcs13_max_nss;
- };
- u8 rx_tx_max_nss[3];
- };
-};
-
-/**
- * struct ieee80211_eht_cap_elem_fixed - EHT capabilities fixed data
- *
- * This structure is the "EHT Capabilities element" fixed fields as
- * described in P802.11be_D2.0 section 9.4.2.313.
- *
- * @mac_cap_info: MAC capabilities, see IEEE80211_EHT_MAC_CAP*
- * @phy_cap_info: PHY capabilities, see IEEE80211_EHT_PHY_CAP*
- */
-struct ieee80211_eht_cap_elem_fixed {
- u8 mac_cap_info[2];
- u8 phy_cap_info[9];
-} __packed;
-
-/**
- * struct ieee80211_eht_cap_elem - EHT capabilities element
- * @fixed: fixed parts, see &ieee80211_eht_cap_elem_fixed
- * @optional: optional parts
- */
-struct ieee80211_eht_cap_elem {
- struct ieee80211_eht_cap_elem_fixed fixed;
-
- /*
- * Followed by:
- * Supported EHT-MCS And NSS Set field: 4, 3, 6 or 9 octets.
- * EHT PPE Thresholds field: variable length.
- */
- u8 optional[];
-} __packed;
-
-#define IEEE80211_EHT_OPER_INFO_PRESENT 0x01
-#define IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT 0x02
-#define IEEE80211_EHT_OPER_EHT_DEF_PE_DURATION 0x04
-#define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_LIMIT 0x08
-#define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_EXP_MASK 0x30
-#define IEEE80211_EHT_OPER_MCS15_DISABLE 0x40
-
-/**
- * struct ieee80211_eht_operation - eht operation element
- *
- * This structure is the "EHT Operation Element" fields as
- * described in P802.11be_D2.0 section 9.4.2.311
- *
- * @params: EHT operation element parameters. See &IEEE80211_EHT_OPER_*
- * @basic_mcs_nss: indicates the EHT-MCSs for each number of spatial streams in
- * EHT PPDUs that are supported by all EHT STAs in the BSS in transmit and
- * receive.
- * @optional: optional parts
- */
-struct ieee80211_eht_operation {
- u8 params;
- struct ieee80211_eht_mcs_nss_supp_20mhz_only basic_mcs_nss;
- u8 optional[];
-} __packed;
-
-/**
- * struct ieee80211_eht_operation_info - eht operation information
- *
- * @control: EHT operation information control.
- * @ccfs0: defines a channel center frequency for a 20, 40, 80, 160, or 320 MHz
- * EHT BSS.
- * @ccfs1: defines a channel center frequency for a 160 or 320 MHz EHT BSS.
- * @optional: optional parts
- */
-struct ieee80211_eht_operation_info {
- u8 control;
- u8 ccfs0;
- u8 ccfs1;
- u8 optional[];
-} __packed;
-
/* S1G Capabilities Information field */
#define IEEE80211_S1G_CAPABILITY_LEN 15
#define S1G_2M_PRIMARY_LOCATION_LOWER 0
#define S1G_2M_PRIMARY_LOCATION_UPPER 1
-/* EHT MAC capabilities as defined in P802.11be_D2.0 section 9.4.2.313.2 */
-#define IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS 0x01
-#define IEEE80211_EHT_MAC_CAP0_OM_CONTROL 0x02
-#define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1 0x04
-#define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE2 0x08
-#define IEEE80211_EHT_MAC_CAP0_RESTRICTED_TWT 0x10
-#define IEEE80211_EHT_MAC_CAP0_SCS_TRAFFIC_DESC 0x20
-#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK 0xc0
-#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895 0
-#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991 1
-#define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454 2
-
-#define IEEE80211_EHT_MAC_CAP1_MAX_AMPDU_LEN_MASK 0x01
-#define IEEE80211_EHT_MAC_CAP1_EHT_TRS 0x02
-#define IEEE80211_EHT_MAC_CAP1_TXOP_RET 0x04
-#define IEEE80211_EHT_MAC_CAP1_TWO_BQRS 0x08
-#define IEEE80211_EHT_MAC_CAP1_EHT_LINK_ADAPT_MASK 0x30
-#define IEEE80211_EHT_MAC_CAP1_UNSOL_EPCS_PRIO_ACCESS 0x40
-
-/* EHT PHY capabilities as defined in P802.11be_D2.0 section 9.4.2.313.3 */
-#define IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ 0x02
-#define IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ 0x04
-#define IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI 0x08
-#define IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO 0x10
-#define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER 0x20
-#define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE 0x40
-
-/* EHT beamformee number of spatial streams <= 80MHz is split */
-#define IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK 0x80
-#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK 0x03
-
-#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK 0x1c
-#define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK 0xe0
-
-#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK 0x07
-#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK 0x38
-
-/* EHT number of sounding dimensions for 320MHz is split */
-#define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK 0xc0
-#define IEEE80211_EHT_PHY_CAP3_SOUNDING_DIM_320MHZ_MASK 0x01
-#define IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK 0x02
-#define IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK 0x04
-#define IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK 0x08
-#define IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK 0x10
-#define IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK 0x20
-#define IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK 0x40
-#define IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK 0x80
-
-#define IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO 0x01
-#define IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP 0x02
-#define IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP 0x04
-#define IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI 0x08
-#define IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK 0xf0
-
-#define IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK 0x01
-#define IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP 0x02
-#define IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP 0x04
-#define IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT 0x08
-#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK 0x30
-#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US 0
-#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US 1
-#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US 2
-#define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US 3
-
-/* Maximum number of supported EHT LTF is split */
-#define IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK 0xc0
-#define IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF 0x40
-#define IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK 0x07
-
-#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_80MHZ 0x08
-#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_160MHZ 0x30
-#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_320MHZ 0x40
-#define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK 0x78
-#define IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP 0x80
-
-#define IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW 0x01
-#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ 0x02
-#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ 0x04
-#define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ 0x08
-#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ 0x10
-#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ 0x20
-#define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ 0x40
-#define IEEE80211_EHT_PHY_CAP7_TB_SOUNDING_FDBK_RATE_LIMIT 0x80
-
-#define IEEE80211_EHT_PHY_CAP8_RX_1024QAM_WIDER_BW_DL_OFDMA 0x01
-#define IEEE80211_EHT_PHY_CAP8_RX_4096QAM_WIDER_BW_DL_OFDMA 0x02
-
-/*
- * EHT operation channel width as defined in P802.11be_D2.0 section 9.4.2.311
- */
-#define IEEE80211_EHT_OPER_CHAN_WIDTH 0x7
-#define IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ 0
-#define IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ 1
-#define IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ 2
-#define IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ 3
-#define IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ 4
-
-/* need HE definitions for EHT functions */
-#include "ieee80211-he.h"
-
-/* Calculate 802.11be EHT capabilities IE Tx/Rx EHT MCS NSS Support Field size */
-static inline u8
-ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
- const struct ieee80211_eht_cap_elem_fixed *eht_cap,
- bool from_ap)
-{
- u8 count = 0;
-
- /* on 2.4 GHz, if it supports 40 MHz, the result is 3 */
- if (he_cap->phy_cap_info[0] &
- IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)
- return 3;
-
- /* on 2.4 GHz, these three bits are reserved, so should be 0 */
- if (he_cap->phy_cap_info[0] &
- IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G)
- count += 3;
-
- if (he_cap->phy_cap_info[0] &
- IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
- count += 3;
-
- if (eht_cap->phy_cap_info[0] & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
- count += 3;
-
- if (count)
- return count;
-
- return from_ap ? 3 : 4;
-}
-
-/* 802.11be EHT PPE Thresholds */
-#define IEEE80211_EHT_PPE_THRES_NSS_POS 0
-#define IEEE80211_EHT_PPE_THRES_NSS_MASK 0xf
-#define IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK 0x1f0
-#define IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE 3
-#define IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE 9
-
-/*
- * Calculate 802.11be EHT capabilities IE EHT field size
- */
-static inline u8
-ieee80211_eht_ppe_size(u16 ppe_thres_hdr, const u8 *phy_cap_info)
-{
- u32 n;
-
- if (!(phy_cap_info[5] &
- IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT))
- return 0;
-
- n = hweight16(ppe_thres_hdr &
- IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
- n *= 1 + u16_get_bits(ppe_thres_hdr, IEEE80211_EHT_PPE_THRES_NSS_MASK);
-
- /*
- * Each pair is 6 bits, and we need to add the 9 "header" bits to the
- * total size.
- */
- n = n * IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE * 2 +
- IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
- return DIV_ROUND_UP(n, 8);
-}
-
-static inline bool
-ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len,
- bool from_ap)
-{
- const struct ieee80211_eht_cap_elem_fixed *elem = (const void *)data;
- u8 needed = sizeof(struct ieee80211_eht_cap_elem_fixed);
-
- if (len < needed || !he_capa)
- return false;
-
- needed += ieee80211_eht_mcs_nss_size((const void *)he_capa,
- (const void *)data,
- from_ap);
- if (len < needed)
- return false;
-
- if (elem->phy_cap_info[5] &
- IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
- u16 ppe_thres_hdr;
-
- if (len < needed + sizeof(ppe_thres_hdr))
- return false;
-
- ppe_thres_hdr = get_unaligned_le16(data + needed);
- needed += ieee80211_eht_ppe_size(ppe_thres_hdr,
- elem->phy_cap_info);
- }
-
- return len >= needed;
-}
-
-static inline bool
-ieee80211_eht_oper_size_ok(const u8 *data, u8 len)
-{
- const struct ieee80211_eht_operation *elem = (const void *)data;
- u8 needed = sizeof(*elem);
-
- if (len < needed)
- return false;
-
- if (elem->params & IEEE80211_EHT_OPER_INFO_PRESENT) {
- needed += 3;
-
- if (elem->params &
- IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)
- needed += 2;
- }
-
- return len >= needed;
-}
-
-/* must validate ieee80211_eht_oper_size_ok() first */
-static inline u16
-ieee80211_eht_oper_dis_subchan_bitmap(const struct ieee80211_eht_operation *eht_oper)
-{
- const struct ieee80211_eht_operation_info *info =
- (const void *)eht_oper->optional;
-
- if (!(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT))
- return 0;
-
- if (!(eht_oper->params & IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT))
- return 0;
-
- return get_unaligned_le16(info->optional);
-}
-
-#define IEEE80211_BW_IND_DIS_SUBCH_PRESENT BIT(1)
-
-struct ieee80211_bandwidth_indication {
- u8 params;
- struct ieee80211_eht_operation_info info;
-} __packed;
-
-static inline bool
-ieee80211_bandwidth_indication_size_ok(const u8 *data, u8 len)
-{
- const struct ieee80211_bandwidth_indication *bwi = (const void *)data;
-
- if (len < sizeof(*bwi))
- return false;
-
- if (bwi->params & IEEE80211_BW_IND_DIS_SUBCH_PRESENT &&
- len < sizeof(*bwi) + 2)
- return false;
-
- return true;
-}
-
#define LISTEN_INT_USF GENMASK(15, 14)
#define LISTEN_INT_UI GENMASK(13, 0)
WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE = 1,
};
-/* Protected EHT action codes */
-enum ieee80211_protected_eht_actioncode {
- WLAN_PROTECTED_EHT_ACTION_TTLM_REQ = 0,
- WLAN_PROTECTED_EHT_ACTION_TTLM_RES = 1,
- WLAN_PROTECTED_EHT_ACTION_TTLM_TEARDOWN = 2,
- WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_REQ = 3,
- WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_RESP = 4,
- WLAN_PROTECTED_EHT_ACTION_EPCS_ENABLE_TEARDOWN = 5,
- WLAN_PROTECTED_EHT_ACTION_EML_OP_MODE_NOTIF = 6,
- WLAN_PROTECTED_EHT_ACTION_LINK_RECOMMEND = 7,
- WLAN_PROTECTED_EHT_ACTION_ML_OP_UPDATE_REQ = 8,
- WLAN_PROTECTED_EHT_ACTION_ML_OP_UPDATE_RESP = 9,
- WLAN_PROTECTED_EHT_ACTION_LINK_RECONFIG_NOTIF = 10,
- WLAN_PROTECTED_EHT_ACTION_LINK_RECONFIG_REQ = 11,
- WLAN_PROTECTED_EHT_ACTION_LINK_RECONFIG_RESP = 12,
-};
-
/* Security key length */
enum ieee80211_key_len {
WLAN_KEY_LEN_WEP40 = 5,
struct ieee80211_rnr_mld_params mld_params;
} __packed;
-/* multi-link device */
-#define IEEE80211_MLD_MAX_NUM_LINKS 15
-
-#define IEEE80211_ML_CONTROL_TYPE 0x0007
-#define IEEE80211_ML_CONTROL_TYPE_BASIC 0
-#define IEEE80211_ML_CONTROL_TYPE_PREQ 1
-#define IEEE80211_ML_CONTROL_TYPE_RECONF 2
-#define IEEE80211_ML_CONTROL_TYPE_TDLS 3
-#define IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS 4
-#define IEEE80211_ML_CONTROL_PRESENCE_MASK 0xfff0
-
-struct ieee80211_multi_link_elem {
- __le16 control;
- u8 variable[];
-} __packed;
-
-#define IEEE80211_MLC_BASIC_PRES_LINK_ID 0x0010
-#define IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT 0x0020
-#define IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY 0x0040
-#define IEEE80211_MLC_BASIC_PRES_EML_CAPA 0x0080
-#define IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP 0x0100
-#define IEEE80211_MLC_BASIC_PRES_MLD_ID 0x0200
-#define IEEE80211_MLC_BASIC_PRES_EXT_MLD_CAPA_OP 0x0400
-
-#define IEEE80211_MED_SYNC_DELAY_DURATION 0x00ff
-#define IEEE80211_MED_SYNC_DELAY_SYNC_OFDM_ED_THRESH 0x0f00
-#define IEEE80211_MED_SYNC_DELAY_SYNC_MAX_NUM_TXOPS 0xf000
-
-/*
- * Described in P802.11be_D3.0
- * dot11MSDTimerDuration should default to 5484 (i.e. 171.375)
- * dot11MSDOFDMEDthreshold defaults to -72 (i.e. 0)
- * dot11MSDTXOPMAX defaults to 1
- */
-#define IEEE80211_MED_SYNC_DELAY_DEFAULT 0x10ac
-
-#define IEEE80211_EML_CAP_EMLSR_SUPP 0x0001
-#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY 0x000e
-#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_0US 0
-#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US 1
-#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_64US 2
-#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_128US 3
-#define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_256US 4
-#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY 0x0070
-#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_0US 0
-#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_16US 1
-#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_32US 2
-#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US 3
-#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_128US 4
-#define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_256US 5
-#define IEEE80211_EML_CAP_EMLMR_SUPPORT 0x0080
-#define IEEE80211_EML_CAP_EMLMR_DELAY 0x0700
-#define IEEE80211_EML_CAP_EMLMR_DELAY_0US 0
-#define IEEE80211_EML_CAP_EMLMR_DELAY_32US 1
-#define IEEE80211_EML_CAP_EMLMR_DELAY_64US 2
-#define IEEE80211_EML_CAP_EMLMR_DELAY_128US 3
-#define IEEE80211_EML_CAP_EMLMR_DELAY_256US 4
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT 0x7800
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_0 0
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128US 1
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_256US 2
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_512US 3
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_1TU 4
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_2TU 5
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_4TU 6
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_8TU 7
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_16TU 8
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_32TU 9
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_64TU 10
-#define IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU 11
-
-#define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS 0x000f
-#define IEEE80211_MLD_CAP_OP_SRS_SUPPORT 0x0010
-#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060
-#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_NO_SUPP 0
-#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1
-#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_RESERVED 2
-#define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_DIFF 3
-#define IEEE80211_MLD_CAP_OP_FREQ_SEP_TYPE_IND 0x0f80
-#define IEEE80211_MLD_CAP_OP_AAR_SUPPORT 0x1000
-#define IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT 0x2000
-#define IEEE80211_MLD_CAP_OP_ALIGNED_TWT_SUPPORT 0x4000
-
-struct ieee80211_mle_basic_common_info {
- u8 len;
- u8 mld_mac_addr[ETH_ALEN];
- u8 variable[];
-} __packed;
-
-#define IEEE80211_MLC_PREQ_PRES_MLD_ID 0x0010
-
-struct ieee80211_mle_preq_common_info {
- u8 len;
- u8 variable[];
-} __packed;
-
-#define IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR 0x0010
-#define IEEE80211_MLC_RECONF_PRES_EML_CAPA 0x0020
-#define IEEE80211_MLC_RECONF_PRES_MLD_CAPA_OP 0x0040
-#define IEEE80211_MLC_RECONF_PRES_EXT_MLD_CAPA_OP 0x0080
-
-/* no fixed fields in RECONF */
-
-struct ieee80211_mle_tdls_common_info {
- u8 len;
- u8 ap_mld_mac_addr[ETH_ALEN];
-} __packed;
-
-#define IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR 0x0010
-
-/* no fixed fields in PRIO_ACCESS */
-
-/**
- * ieee80211_mle_common_size - check multi-link element common size
- * @data: multi-link element, must already be checked for size using
- * ieee80211_mle_size_ok()
- * Return: the size of the multi-link element's "common" subfield
- */
-static inline u8 ieee80211_mle_common_size(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
-
- switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
- case IEEE80211_ML_CONTROL_TYPE_BASIC:
- case IEEE80211_ML_CONTROL_TYPE_PREQ:
- case IEEE80211_ML_CONTROL_TYPE_TDLS:
- case IEEE80211_ML_CONTROL_TYPE_RECONF:
- case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
- /*
- * The length is the first octet pointed by mle->variable so no
- * need to add anything
- */
- break;
- default:
- WARN_ON(1);
- return 0;
- }
-
- return sizeof(*mle) + mle->variable[0];
-}
-
-/**
- * ieee80211_mle_get_link_id - returns the link ID
- * @data: the basic multi link element
- * Return: the link ID, or -1 if not present
- *
- * The element is assumed to be of the correct type (BASIC) and big enough,
- * this must be checked using ieee80211_mle_type_ok().
- */
-static inline int ieee80211_mle_get_link_id(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
- const u8 *common = mle->variable;
-
- /* common points now at the beginning of ieee80211_mle_basic_common_info */
- common += sizeof(struct ieee80211_mle_basic_common_info);
-
- if (!(control & IEEE80211_MLC_BASIC_PRES_LINK_ID))
- return -1;
-
- return *common;
-}
-
-/**
- * ieee80211_mle_get_bss_param_ch_cnt - returns the BSS parameter change count
- * @data: pointer to the basic multi link element
- * Return: the BSS Parameter Change Count field value, or -1 if not present
- *
- * The element is assumed to be of the correct type (BASIC) and big enough,
- * this must be checked using ieee80211_mle_type_ok().
- */
-static inline int
-ieee80211_mle_get_bss_param_ch_cnt(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
- const u8 *common = mle->variable;
-
- /* common points now at the beginning of ieee80211_mle_basic_common_info */
- common += sizeof(struct ieee80211_mle_basic_common_info);
-
- if (!(control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT))
- return -1;
-
- if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
- common += 1;
-
- return *common;
-}
-
-/**
- * ieee80211_mle_get_eml_med_sync_delay - returns the medium sync delay
- * @data: pointer to the multi-link element
- * Return: the medium synchronization delay field value from the multi-link
- * element, or the default value (%IEEE80211_MED_SYNC_DELAY_DEFAULT)
- * if not present
- *
- * The element is assumed to be of the correct type (BASIC) and big enough,
- * this must be checked using ieee80211_mle_type_ok().
- */
-static inline u16 ieee80211_mle_get_eml_med_sync_delay(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
- const u8 *common = mle->variable;
-
- /* common points now at the beginning of ieee80211_mle_basic_common_info */
- common += sizeof(struct ieee80211_mle_basic_common_info);
-
- if (!(control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY))
- return IEEE80211_MED_SYNC_DELAY_DEFAULT;
-
- if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
- common += 1;
-
- return get_unaligned_le16(common);
-}
-
-/**
- * ieee80211_mle_get_eml_cap - returns the EML capability
- * @data: pointer to the multi-link element
- * Return: the EML capability field value from the multi-link element,
- * or 0 if not present
- *
- * The element is assumed to be of the correct type (BASIC) and big enough,
- * this must be checked using ieee80211_mle_type_ok().
- */
-static inline u16 ieee80211_mle_get_eml_cap(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
- const u8 *common = mle->variable;
-
- /* common points now at the beginning of ieee80211_mle_basic_common_info */
- common += sizeof(struct ieee80211_mle_basic_common_info);
-
- if (!(control & IEEE80211_MLC_BASIC_PRES_EML_CAPA))
- return 0;
-
- if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
- common += 2;
-
- return get_unaligned_le16(common);
-}
-
-/**
- * ieee80211_mle_get_mld_capa_op - returns the MLD capabilities and operations.
- * @data: pointer to the multi-link element
- * Return: the MLD capabilities and operations field value from the multi-link
- * element, or 0 if not present
- *
- * The element is assumed to be of the correct type (BASIC) and big enough,
- * this must be checked using ieee80211_mle_type_ok().
- */
-static inline u16 ieee80211_mle_get_mld_capa_op(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
- const u8 *common = mle->variable;
-
- /*
- * common points now at the beginning of
- * ieee80211_mle_basic_common_info
- */
- common += sizeof(struct ieee80211_mle_basic_common_info);
-
- if (!(control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP))
- return 0;
-
- if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
- common += 2;
-
- return get_unaligned_le16(common);
-}
-
-/* Defined in Figure 9-1074t in P802.11be_D7.0 */
-#define IEEE80211_EHT_ML_EXT_MLD_CAPA_OP_PARAM_UPDATE 0x0001
-#define IEEE80211_EHT_ML_EXT_MLD_CAPA_OP_RECO_MAX_LINKS_MASK 0x001e
-#define IEEE80211_EHT_ML_EXT_MLD_CAPA_NSTR_UPDATE 0x0020
-#define IEEE80211_EHT_ML_EXT_MLD_CAPA_EMLSR_ENA_ON_ONE_LINK 0x0040
-#define IEEE80211_EHT_ML_EXT_MLD_CAPA_BTM_MLD_RECO_MULTI_AP 0x0080
-
-/**
- * ieee80211_mle_get_ext_mld_capa_op - returns the extended MLD capabilities
- * and operations.
- * @data: pointer to the multi-link element
- * Return: the extended MLD capabilities and operations field value from
- * the multi-link element, or 0 if not present
- *
- * The element is assumed to be of the correct type (BASIC) and big enough,
- * this must be checked using ieee80211_mle_type_ok().
- */
-static inline u16 ieee80211_mle_get_ext_mld_capa_op(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
- const u8 *common = mle->variable;
-
- /*
- * common points now at the beginning of
- * ieee80211_mle_basic_common_info
- */
- common += sizeof(struct ieee80211_mle_basic_common_info);
-
- if (!(control & IEEE80211_MLC_BASIC_PRES_EXT_MLD_CAPA_OP))
- return 0;
-
- if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_MLD_ID)
- common += 1;
-
- return get_unaligned_le16(common);
-}
-
-/**
- * ieee80211_mle_get_mld_id - returns the MLD ID
- * @data: pointer to the multi-link element
- * Return: The MLD ID in the given multi-link element, or 0 if not present
- *
- * The element is assumed to be of the correct type (BASIC) and big enough,
- * this must be checked using ieee80211_mle_type_ok().
- */
-static inline u8 ieee80211_mle_get_mld_id(const u8 *data)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control = le16_to_cpu(mle->control);
- const u8 *common = mle->variable;
-
- /*
- * common points now at the beginning of
- * ieee80211_mle_basic_common_info
- */
- common += sizeof(struct ieee80211_mle_basic_common_info);
-
- if (!(control & IEEE80211_MLC_BASIC_PRES_MLD_ID))
- return 0;
-
- if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
- common += 2;
-
- return *common;
-}
-
-/**
- * ieee80211_mle_size_ok - validate multi-link element size
- * @data: pointer to the element data
- * @len: length of the containing element
- * Return: whether or not the multi-link element size is OK
- */
-static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u8 fixed = sizeof(*mle);
- u8 common = 0;
- bool check_common_len = false;
- u16 control;
-
- if (!data || len < fixed)
- return false;
-
- control = le16_to_cpu(mle->control);
-
- switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
- case IEEE80211_ML_CONTROL_TYPE_BASIC:
- common += sizeof(struct ieee80211_mle_basic_common_info);
- check_common_len = true;
- if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
- common += 2;
- if (control & IEEE80211_MLC_BASIC_PRES_MLD_ID)
- common += 1;
- if (control & IEEE80211_MLC_BASIC_PRES_EXT_MLD_CAPA_OP)
- common += 2;
- break;
- case IEEE80211_ML_CONTROL_TYPE_PREQ:
- common += sizeof(struct ieee80211_mle_preq_common_info);
- if (control & IEEE80211_MLC_PREQ_PRES_MLD_ID)
- common += 1;
- check_common_len = true;
- break;
- case IEEE80211_ML_CONTROL_TYPE_RECONF:
- if (control & IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR)
- common += ETH_ALEN;
- if (control & IEEE80211_MLC_RECONF_PRES_EML_CAPA)
- common += 2;
- if (control & IEEE80211_MLC_RECONF_PRES_MLD_CAPA_OP)
- common += 2;
- if (control & IEEE80211_MLC_RECONF_PRES_EXT_MLD_CAPA_OP)
- common += 2;
- break;
- case IEEE80211_ML_CONTROL_TYPE_TDLS:
- common += sizeof(struct ieee80211_mle_tdls_common_info);
- check_common_len = true;
- break;
- case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
- common = ETH_ALEN + 1;
- break;
- default:
- /* we don't know this type */
- return true;
- }
-
- if (len < fixed + common)
- return false;
-
- if (!check_common_len)
- return true;
-
- /* if present, common length is the first octet there */
- return mle->variable[0] >= common;
-}
-
-/**
- * ieee80211_mle_type_ok - validate multi-link element type and size
- * @data: pointer to the element data
- * @type: expected type of the element
- * @len: length of the containing element
- * Return: whether or not the multi-link element type matches and size is OK
- */
-static inline bool ieee80211_mle_type_ok(const u8 *data, u8 type, size_t len)
-{
- const struct ieee80211_multi_link_elem *mle = (const void *)data;
- u16 control;
-
- if (!ieee80211_mle_size_ok(data, len))
- return false;
-
- control = le16_to_cpu(mle->control);
-
- if (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE) == type)
- return true;
-
- return false;
-}
-
-enum ieee80211_mle_subelems {
- IEEE80211_MLE_SUBELEM_PER_STA_PROFILE = 0,
- IEEE80211_MLE_SUBELEM_FRAGMENT = 254,
-};
-
-#define IEEE80211_MLE_STA_CONTROL_LINK_ID 0x000f
-#define IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE 0x0010
-#define IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT 0x0020
-#define IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT 0x0040
-#define IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT 0x0080
-#define IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT 0x0100
-#define IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT 0x0200
-#define IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE 0x0400
-#define IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT 0x0800
-
-struct ieee80211_mle_per_sta_profile {
- __le16 control;
- u8 sta_info_len;
- u8 variable[];
-} __packed;
-
-/**
- * ieee80211_mle_basic_sta_prof_size_ok - validate basic multi-link element sta
- * profile size
- * @data: pointer to the sub element data
- * @len: length of the containing sub element
- * Return: %true if the STA profile is large enough, %false otherwise
- */
-static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data,
- size_t len)
-{
- const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
- u16 control;
- u8 fixed = sizeof(*prof);
- u8 info_len = 1;
-
- if (len < fixed)
- return false;
-
- control = le16_to_cpu(prof->control);
-
- if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
- info_len += 6;
- if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
- info_len += 2;
- if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
- info_len += 8;
- if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
- info_len += 2;
- if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
- control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
- if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
- info_len += 2;
- else
- info_len += 1;
- }
- if (control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT)
- info_len += 1;
-
- return prof->sta_info_len >= info_len &&
- fixed + prof->sta_info_len - 1 <= len;
-}
-
-/**
- * ieee80211_mle_basic_sta_prof_bss_param_ch_cnt - get per-STA profile BSS
- * parameter change count
- * @prof: the per-STA profile, having been checked with
- * ieee80211_mle_basic_sta_prof_size_ok() for the correct length
- *
- * Return: The BSS parameter change count value if present, 0 otherwise.
- */
-static inline u8
-ieee80211_mle_basic_sta_prof_bss_param_ch_cnt(const struct ieee80211_mle_per_sta_profile *prof)
-{
- u16 control = le16_to_cpu(prof->control);
- const u8 *pos = prof->variable;
-
- if (!(control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT))
- return 0;
-
- if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
- pos += 6;
- if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
- pos += 2;
- if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
- pos += 8;
- if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
- pos += 2;
- if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
- control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
- if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
- pos += 2;
- else
- pos += 1;
- }
-
- return *pos;
-}
-
-#define IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID 0x000f
-#define IEEE80211_MLE_STA_RECONF_CONTROL_COMPLETE_PROFILE 0x0010
-#define IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT 0x0020
-#define IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT 0x0040
-#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE 0x0780
-#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_AP_REM 0
-#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_OP_PARAM_UPDATE 1
-#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_ADD_LINK 2
-#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_DEL_LINK 3
-#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_TYPE_NSTR_STATUS 4
-#define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT 0x0800
-
-/**
- * ieee80211_mle_reconf_sta_prof_size_ok - validate reconfiguration multi-link
- * element sta profile size.
- * @data: pointer to the sub element data
- * @len: length of the containing sub element
- * Return: %true if the STA profile is large enough, %false otherwise
- */
-static inline bool ieee80211_mle_reconf_sta_prof_size_ok(const u8 *data,
- size_t len)
-{
- const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
- u16 control;
- u8 fixed = sizeof(*prof);
- u8 info_len = 1;
-
- if (len < fixed)
- return false;
-
- control = le16_to_cpu(prof->control);
-
- if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT)
- info_len += ETH_ALEN;
- if (control & IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT)
- info_len += 2;
- if (control & IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT)
- info_len += 2;
-
- return prof->sta_info_len >= info_len &&
- fixed + prof->sta_info_len - 1 <= len;
-}
-
-#define IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID 0x000f
-#define IEEE80211_EPCS_ENA_RESP_BODY_LEN 3
-
-static inline bool ieee80211_tid_to_link_map_size_ok(const u8 *data, size_t len)
-{
- const struct ieee80211_ttlm_elem *t2l = (const void *)data;
- u8 control, fixed = sizeof(*t2l), elem_len = 0;
-
- if (len < fixed)
- return false;
-
- control = t2l->control;
-
- if (control & IEEE80211_TTLM_CONTROL_SWITCH_TIME_PRESENT)
- elem_len += 2;
- if (control & IEEE80211_TTLM_CONTROL_EXPECTED_DUR_PRESENT)
- elem_len += 3;
-
- if (!(control & IEEE80211_TTLM_CONTROL_DEF_LINK_MAP)) {
- u8 bm_size;
-
- elem_len += 1;
- if (len < fixed + elem_len)
- return false;
-
- if (control & IEEE80211_TTLM_CONTROL_LINK_MAP_SIZE)
- bm_size = 1;
- else
- bm_size = 2;
-
- elem_len += hweight8(t2l->optional[0]) * bm_size;
- }
-
- return len >= fixed + elem_len;
-}
-
-/**
- * ieee80211_emlsr_pad_delay_in_us - Fetch the EMLSR Padding delay
- * in microseconds
- * @eml_cap: EML capabilities field value from common info field of
- * the Multi-link element
- * Return: the EMLSR Padding delay (in microseconds) encoded in the
- * EML Capabilities field
- */
-
-static inline u32 ieee80211_emlsr_pad_delay_in_us(u16 eml_cap)
-{
- /* IEEE Std 802.11be-2024 Table 9-417i—Encoding of the EMLSR
- * Padding Delay subfield.
- */
- u32 pad_delay = u16_get_bits(eml_cap,
- IEEE80211_EML_CAP_EMLSR_PADDING_DELAY);
-
- if (!pad_delay ||
- pad_delay > IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_256US)
- return 0;
-
- return 32 * (1 << (pad_delay - 1));
-}
-
-/**
- * ieee80211_emlsr_trans_delay_in_us - Fetch the EMLSR Transition
- * delay in microseconds
- * @eml_cap: EML capabilities field value from common info field of
- * the Multi-link element
- * Return: the EMLSR Transition delay (in microseconds) encoded in the
- * EML Capabilities field
- */
-
-static inline u32 ieee80211_emlsr_trans_delay_in_us(u16 eml_cap)
-{
- /* IEEE Std 802.11be-2024 Table 9-417j—Encoding of the EMLSR
- * Transition Delay subfield.
- */
- u32 trans_delay =
- u16_get_bits(eml_cap,
- IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY);
-
- /* invalid values also just use 0 */
- if (!trans_delay ||
- trans_delay > IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_256US)
- return 0;
-
- return 16 * (1 << (trans_delay - 1));
-}
-
-/**
- * ieee80211_eml_trans_timeout_in_us - Fetch the EMLSR Transition
- * timeout value in microseconds
- * @eml_cap: EML capabilities field value from common info field of
- * the Multi-link element
- * Return: the EMLSR Transition timeout (in microseconds) encoded in
- * the EML Capabilities field
- */
-
-static inline u32 ieee80211_eml_trans_timeout_in_us(u16 eml_cap)
-{
- /* IEEE Std 802.11be-2024 Table 9-417m—Encoding of the
- * Transition Timeout subfield.
- */
- u8 timeout = u16_get_bits(eml_cap,
- IEEE80211_EML_CAP_TRANSITION_TIMEOUT);
-
- /* invalid values also just use 0 */
- if (!timeout || timeout > IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU)
- return 0;
-
- return 128 * (1 << (timeout - 1));
-}
-
-#define for_each_mle_subelement(_elem, _data, _len) \
- if (ieee80211_mle_size_ok(_data, _len)) \
- for_each_element(_elem, \
- _data + ieee80211_mle_common_size(_data),\
- _len - ieee80211_mle_common_size(_data))
-
/* NAN operation mode, as defined in Wi-Fi Aware (TM) specification Table 81 */
#define NAN_OP_MODE_PHY_MODE_VHT 0x01
#define NAN_OP_MODE_PHY_MODE_HE 0x10
#include "ieee80211-ht.h"
#include "ieee80211-vht.h"
+#include "ieee80211-he.h"
+#include "ieee80211-eht.h"
#include "ieee80211-mesh.h"
#endif /* LINUX_IEEE80211_H */
projects / thirdparty / kernel / linux.git / commitdiff
