mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git
synced 2026-04-03 23:38:12 -04:00
a7cb50156e
This is based on Draft P802.11bn_D1.2, but that's still very incomplete, so don't handle a number of things and make some local decisions such as using 40 bits for MAC capabilities and 8 bits for PHY capabilities. Link: https://patch.msgid.link/20260130164259.b28c9456ff94.I5b11fb0345a933bf497fd802aecc72932d58dd68@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
221 lines
6.2 KiB
C
221 lines
6.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* IEEE 802.11 UHR definitions
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*
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* Copyright (c) 2025-2026 Intel Corporation
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*/
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#ifndef LINUX_IEEE80211_UHR_H
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#define LINUX_IEEE80211_UHR_H
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#include <linux/types.h>
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#include <linux/if_ether.h>
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#define IEEE80211_UHR_OPER_PARAMS_DPS_ENA 0x0001
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#define IEEE80211_UHR_OPER_PARAMS_NPCA_ENA 0x0002
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#define IEEE80211_UHR_OPER_PARAMS_DBE_ENA 0x0004
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#define IEEE80211_UHR_OPER_PARAMS_PEDCA_ENA 0x0008
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struct ieee80211_uhr_operation {
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__le16 params;
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u8 basic_mcs_nss_set[4];
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u8 variable[];
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} __packed;
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#define IEEE80211_UHR_NPCA_PARAMS_PRIMARY_CHAN_OFFS 0x0000000F
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#define IEEE80211_UHR_NPCA_PARAMS_MIN_DUR_THRESH 0x000000F0
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#define IEEE80211_UHR_NPCA_PARAMS_SWITCH_DELAY 0x00003F00
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#define IEEE80211_UHR_NPCA_PARAMS_SWITCH_BACK_DELAY 0x000FC000
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#define IEEE80211_UHR_NPCA_PARAMS_INIT_QSRC 0x00300000
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#define IEEE80211_UHR_NPCA_PARAMS_MOPLEN 0x00400000
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#define IEEE80211_UHR_NPCA_PARAMS_DIS_SUBCH_BMAP_PRES 0x00800000
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struct ieee80211_uhr_npca_info {
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__le32 params;
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__le16 dis_subch_bmap[];
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} __packed;
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static inline bool ieee80211_uhr_oper_size_ok(const u8 *data, u8 len,
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bool beacon)
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{
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const struct ieee80211_uhr_operation *oper = (const void *)data;
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u8 needed = sizeof(*oper);
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if (len < needed)
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return false;
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/* nothing else present in beacons */
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if (beacon)
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return true;
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/* FIXME: DPS, DBE, P-EDCA (consider order, also relative to NPCA) */
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if (oper->params & cpu_to_le16(IEEE80211_UHR_OPER_PARAMS_NPCA_ENA)) {
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const struct ieee80211_uhr_npca_info *npca =
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(const void *)oper->variable;
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needed += sizeof(*npca);
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if (len < needed)
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return false;
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if (npca->params & cpu_to_le32(IEEE80211_UHR_NPCA_PARAMS_DIS_SUBCH_BMAP_PRES))
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needed += sizeof(npca->dis_subch_bmap[0]);
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}
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return len >= needed;
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}
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/*
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* Note: cannot call this on the element coming from a beacon,
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* must ensure ieee80211_uhr_oper_size_ok(..., false) first
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*/
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static inline const struct ieee80211_uhr_npca_info *
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ieee80211_uhr_npca_info(const struct ieee80211_uhr_operation *oper)
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{
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if (!(oper->params & cpu_to_le16(IEEE80211_UHR_OPER_PARAMS_NPCA_ENA)))
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return NULL;
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/* FIXME: DPS */
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return (const void *)oper->variable;
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}
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static inline const __le16 *
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ieee80211_uhr_npca_dis_subch_bitmap(const struct ieee80211_uhr_operation *oper)
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{
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const struct ieee80211_uhr_npca_info *npca;
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npca = ieee80211_uhr_npca_info(oper);
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if (!npca)
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return NULL;
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if (!(npca->params & cpu_to_le32(IEEE80211_UHR_NPCA_PARAMS_DIS_SUBCH_BMAP_PRES)))
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return NULL;
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return npca->dis_subch_bmap;
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}
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#define IEEE80211_UHR_MAC_CAP0_DPS_SUPP 0x01
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#define IEEE80211_UHR_MAC_CAP0_DPS_ASSIST_SUPP 0x02
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#define IEEE80211_UHR_MAC_CAP0_DPS_AP_STATIC_HCM_SUPP 0x04
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#define IEEE80211_UHR_MAC_CAP0_NPCA_SUPP 0x10
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#define IEEE80211_UHR_MAC_CAP0_ENH_BSR_SUPP 0x20
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#define IEEE80211_UHR_MAC_CAP0_ADD_MAP_TID_SUPP 0x40
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#define IEEE80211_UHR_MAC_CAP0_EOTSP_SUPP 0x80
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#define IEEE80211_UHR_MAC_CAP1_DSO_SUPP 0x01
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#define IEEE80211_UHR_MAC_CAP1_PEDCA_SUPP 0x02
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#define IEEE80211_UHR_MAC_CAP1_DBE_SUPP 0x04
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#define IEEE80211_UHR_MAC_CAP1_UL_LLI_SUPP 0x08
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#define IEEE80211_UHR_MAC_CAP1_P2P_LLI_SUPP 0x10
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#define IEEE80211_UHR_MAC_CAP1_PUO_SUPP 0x20
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#define IEEE80211_UHR_MAC_CAP1_AP_PUO_SUPP 0x40
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#define IEEE80211_UHR_MAC_CAP1_DUO_SUPP 0x80
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#define IEEE80211_UHR_MAC_CAP2_OMC_UL_MU_DIS_RX_SUPP 0x01
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#define IEEE80211_UHR_MAC_CAP2_AOM_SUPP 0x02
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#define IEEE80211_UHR_MAC_CAP2_IFCS_LOC_SUPP 0x04
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#define IEEE80211_UHR_MAC_CAP2_UHR_TRS_SUPP 0x08
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#define IEEE80211_UHR_MAC_CAP2_TXSPG_SUPP 0x10
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#define IEEE80211_UHR_MAC_CAP2_TXOP_RET_IN_TXSPG 0x20
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#define IEEE80211_UHR_MAC_CAP2_UHR_OM_PU_TO_LOW 0xC0
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#define IEEE80211_UHR_MAC_CAP3_UHR_OM_PU_TO_HIGH 0x03
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#define IEEE80211_UHR_MAC_CAP3_PARAM_UPD_ADV_NOTIF_INTV 0x1C
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#define IEEE80211_UHR_MAC_CAP3_UPD_IND_TIM_INTV_LOW 0xE0
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#define IEEE80211_UHR_MAC_CAP4_UPD_IND_TIM_INTV_HIGH 0x03
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#define IEEE80211_UHR_MAC_CAP4_BOUNDED_ESS 0x04
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#define IEEE80211_UHR_MAC_CAP4_BTM_ASSURANCE 0x08
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#define IEEE80211_UHR_MAC_CAP4_CO_BF_SUPP 0x10
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#define IEEE80211_UHR_MAC_CAP_DBE_MAX_BW 0x07
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#define IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_160_PRES 0x08
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#define IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_320_PRES 0x10
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struct ieee80211_uhr_cap_mac {
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u8 mac_cap[5];
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} __packed;
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struct ieee80211_uhr_cap {
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struct ieee80211_uhr_cap_mac mac;
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/* DBE, PHY capabilities */
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u8 variable[];
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} __packed;
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#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_SND_NDP_LE80 0x01
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#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_DL_MU_LE80 0x02
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#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_SND_NDP_160 0x04
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#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_DL_MU_160 0x08
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#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_SND_NDP_320 0x10
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#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_DL_MU_320 0x20
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#define IEEE80211_UHR_PHY_CAP_ELR_RX 0x40
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#define IEEE80211_UHR_PHY_CAP_ELR_TX 0x80
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struct ieee80211_uhr_cap_phy {
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u8 cap;
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} __packed;
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static inline bool ieee80211_uhr_capa_size_ok(const u8 *data, u8 len,
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bool from_ap)
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{
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const struct ieee80211_uhr_cap *cap = (const void *)data;
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size_t needed = sizeof(*cap) + sizeof(struct ieee80211_uhr_cap_phy);
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if (len < needed)
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return false;
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/*
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* A non-AP STA does not include the DBE Capability Parameters field
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* in the UHR MAC Capabilities Information field.
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*/
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if (from_ap && cap->mac.mac_cap[1] & IEEE80211_UHR_MAC_CAP1_DBE_SUPP) {
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u8 dbe;
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needed += 1;
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if (len < needed)
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return false;
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dbe = cap->variable[0];
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if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_160_PRES)
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needed += 3;
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if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_320_PRES)
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needed += 3;
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}
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return len >= needed;
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}
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static inline const struct ieee80211_uhr_cap_phy *
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ieee80211_uhr_phy_cap(const struct ieee80211_uhr_cap *cap, bool from_ap)
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{
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u8 offs = 0;
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if (from_ap && cap->mac.mac_cap[1] & IEEE80211_UHR_MAC_CAP1_DBE_SUPP) {
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u8 dbe = cap->variable[0];
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offs += 1;
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if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_160_PRES)
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offs += 3;
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if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_320_PRES)
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offs += 3;
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}
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return (const void *)&cap->variable[offs];
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}
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#define IEEE80211_SMD_INFO_CAPA_DL_DATA_FWD 0x01
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#define IEEE80211_SMD_INFO_CAPA_MAX_NUM_PREP 0x0E
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#define IEEE80211_SMD_INFO_CAPA_TYPE 0x10
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#define IEEE80211_SMD_INFO_CAPA_PTK_PER_AP_MLD 0x20
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struct ieee80211_smd_info {
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u8 id[ETH_ALEN];
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u8 capa;
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__le16 timeout;
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} __packed;
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#endif /* LINUX_IEEE80211_UHR_H */
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