diff options
Diffstat (limited to 'include/linux/ieee80211-uhr.h')
| -rw-r--r-- | include/linux/ieee80211-uhr.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/include/linux/ieee80211-uhr.h b/include/linux/ieee80211-uhr.h new file mode 100644 index 000000000000..132acced7d79 --- /dev/null +++ b/include/linux/ieee80211-uhr.h @@ -0,0 +1,220 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * IEEE 802.11 UHR definitions + * + * Copyright (c) 2025-2026 Intel Corporation + */ +#ifndef LINUX_IEEE80211_UHR_H +#define LINUX_IEEE80211_UHR_H + +#include <linux/types.h> +#include <linux/if_ether.h> + +#define IEEE80211_UHR_OPER_PARAMS_DPS_ENA 0x0001 +#define IEEE80211_UHR_OPER_PARAMS_NPCA_ENA 0x0002 +#define IEEE80211_UHR_OPER_PARAMS_DBE_ENA 0x0004 +#define IEEE80211_UHR_OPER_PARAMS_PEDCA_ENA 0x0008 + +struct ieee80211_uhr_operation { + __le16 params; + u8 basic_mcs_nss_set[4]; + u8 variable[]; +} __packed; + +#define IEEE80211_UHR_NPCA_PARAMS_PRIMARY_CHAN_OFFS 0x0000000F +#define IEEE80211_UHR_NPCA_PARAMS_MIN_DUR_THRESH 0x000000F0 +#define IEEE80211_UHR_NPCA_PARAMS_SWITCH_DELAY 0x00003F00 +#define IEEE80211_UHR_NPCA_PARAMS_SWITCH_BACK_DELAY 0x000FC000 +#define IEEE80211_UHR_NPCA_PARAMS_INIT_QSRC 0x00300000 +#define IEEE80211_UHR_NPCA_PARAMS_MOPLEN 0x00400000 +#define IEEE80211_UHR_NPCA_PARAMS_DIS_SUBCH_BMAP_PRES 0x00800000 + +struct ieee80211_uhr_npca_info { + __le32 params; + __le16 dis_subch_bmap[]; +} __packed; + +static inline bool ieee80211_uhr_oper_size_ok(const u8 *data, u8 len, + bool beacon) +{ + const struct ieee80211_uhr_operation *oper = (const void *)data; + u8 needed = sizeof(*oper); + + if (len < needed) + return false; + + /* nothing else present in beacons */ + if (beacon) + return true; + + /* FIXME: DPS, DBE, P-EDCA (consider order, also relative to NPCA) */ + + if (oper->params & cpu_to_le16(IEEE80211_UHR_OPER_PARAMS_NPCA_ENA)) { + const struct ieee80211_uhr_npca_info *npca = + (const void *)oper->variable; + + needed += sizeof(*npca); + + if (len < needed) + return false; + + if (npca->params & cpu_to_le32(IEEE80211_UHR_NPCA_PARAMS_DIS_SUBCH_BMAP_PRES)) + needed += sizeof(npca->dis_subch_bmap[0]); + } + + return len >= needed; +} + +/* + * Note: cannot call this on the element coming from a beacon, + * must ensure ieee80211_uhr_oper_size_ok(..., false) first + */ +static inline const struct ieee80211_uhr_npca_info * +ieee80211_uhr_npca_info(const struct ieee80211_uhr_operation *oper) +{ + if (!(oper->params & cpu_to_le16(IEEE80211_UHR_OPER_PARAMS_NPCA_ENA))) + return NULL; + + /* FIXME: DPS */ + + return (const void *)oper->variable; +} + +static inline const __le16 * +ieee80211_uhr_npca_dis_subch_bitmap(const struct ieee80211_uhr_operation *oper) +{ + const struct ieee80211_uhr_npca_info *npca; + + npca = ieee80211_uhr_npca_info(oper); + if (!npca) + return NULL; + if (!(npca->params & cpu_to_le32(IEEE80211_UHR_NPCA_PARAMS_DIS_SUBCH_BMAP_PRES))) + return NULL; + return npca->dis_subch_bmap; +} + +#define IEEE80211_UHR_MAC_CAP0_DPS_SUPP 0x01 +#define IEEE80211_UHR_MAC_CAP0_DPS_ASSIST_SUPP 0x02 +#define IEEE80211_UHR_MAC_CAP0_DPS_AP_STATIC_HCM_SUPP 0x04 +#define IEEE80211_UHR_MAC_CAP0_NPCA_SUPP 0x10 +#define IEEE80211_UHR_MAC_CAP0_ENH_BSR_SUPP 0x20 +#define IEEE80211_UHR_MAC_CAP0_ADD_MAP_TID_SUPP 0x40 +#define IEEE80211_UHR_MAC_CAP0_EOTSP_SUPP 0x80 + +#define IEEE80211_UHR_MAC_CAP1_DSO_SUPP 0x01 +#define IEEE80211_UHR_MAC_CAP1_PEDCA_SUPP 0x02 +#define IEEE80211_UHR_MAC_CAP1_DBE_SUPP 0x04 +#define IEEE80211_UHR_MAC_CAP1_UL_LLI_SUPP 0x08 +#define IEEE80211_UHR_MAC_CAP1_P2P_LLI_SUPP 0x10 +#define IEEE80211_UHR_MAC_CAP1_PUO_SUPP 0x20 +#define IEEE80211_UHR_MAC_CAP1_AP_PUO_SUPP 0x40 +#define IEEE80211_UHR_MAC_CAP1_DUO_SUPP 0x80 + +#define IEEE80211_UHR_MAC_CAP2_OMC_UL_MU_DIS_RX_SUPP 0x01 +#define IEEE80211_UHR_MAC_CAP2_AOM_SUPP 0x02 +#define IEEE80211_UHR_MAC_CAP2_IFCS_LOC_SUPP 0x04 +#define IEEE80211_UHR_MAC_CAP2_UHR_TRS_SUPP 0x08 +#define IEEE80211_UHR_MAC_CAP2_TXSPG_SUPP 0x10 +#define IEEE80211_UHR_MAC_CAP2_TXOP_RET_IN_TXSPG 0x20 +#define IEEE80211_UHR_MAC_CAP2_UHR_OM_PU_TO_LOW 0xC0 + +#define IEEE80211_UHR_MAC_CAP3_UHR_OM_PU_TO_HIGH 0x03 +#define IEEE80211_UHR_MAC_CAP3_PARAM_UPD_ADV_NOTIF_INTV 0x1C +#define IEEE80211_UHR_MAC_CAP3_UPD_IND_TIM_INTV_LOW 0xE0 + +#define IEEE80211_UHR_MAC_CAP4_UPD_IND_TIM_INTV_HIGH 0x03 +#define IEEE80211_UHR_MAC_CAP4_BOUNDED_ESS 0x04 +#define IEEE80211_UHR_MAC_CAP4_BTM_ASSURANCE 0x08 +#define IEEE80211_UHR_MAC_CAP4_CO_BF_SUPP 0x10 + +#define IEEE80211_UHR_MAC_CAP_DBE_MAX_BW 0x07 +#define IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_160_PRES 0x08 +#define IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_320_PRES 0x10 + +struct ieee80211_uhr_cap_mac { + u8 mac_cap[5]; +} __packed; + +struct ieee80211_uhr_cap { + struct ieee80211_uhr_cap_mac mac; + /* DBE, PHY capabilities */ + u8 variable[]; +} __packed; + +#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_SND_NDP_LE80 0x01 +#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_DL_MU_LE80 0x02 +#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_SND_NDP_160 0x04 +#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_DL_MU_160 0x08 +#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_SND_NDP_320 0x10 +#define IEEE80211_UHR_PHY_CAP_MAX_NSS_RX_DL_MU_320 0x20 +#define IEEE80211_UHR_PHY_CAP_ELR_RX 0x40 +#define IEEE80211_UHR_PHY_CAP_ELR_TX 0x80 + +struct ieee80211_uhr_cap_phy { + u8 cap; +} __packed; + +static inline bool ieee80211_uhr_capa_size_ok(const u8 *data, u8 len, + bool from_ap) +{ + const struct ieee80211_uhr_cap *cap = (const void *)data; + size_t needed = sizeof(*cap) + sizeof(struct ieee80211_uhr_cap_phy); + + if (len < needed) + return false; + + /* + * A non-AP STA does not include the DBE Capability Parameters field + * in the UHR MAC Capabilities Information field. + */ + if (from_ap && cap->mac.mac_cap[1] & IEEE80211_UHR_MAC_CAP1_DBE_SUPP) { + u8 dbe; + + needed += 1; + if (len < needed) + return false; + + dbe = cap->variable[0]; + + if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_160_PRES) + needed += 3; + + if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_320_PRES) + needed += 3; + } + + return len >= needed; +} + +static inline const struct ieee80211_uhr_cap_phy * +ieee80211_uhr_phy_cap(const struct ieee80211_uhr_cap *cap, bool from_ap) +{ + u8 offs = 0; + + if (from_ap && cap->mac.mac_cap[1] & IEEE80211_UHR_MAC_CAP1_DBE_SUPP) { + u8 dbe = cap->variable[0]; + + offs += 1; + + if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_160_PRES) + offs += 3; + + if (dbe & IEEE80211_UHR_MAC_CAP_DBE_EHT_MCS_MAP_320_PRES) + offs += 3; + } + + return (const void *)&cap->variable[offs]; +} + +#define IEEE80211_SMD_INFO_CAPA_DL_DATA_FWD 0x01 +#define IEEE80211_SMD_INFO_CAPA_MAX_NUM_PREP 0x0E +#define IEEE80211_SMD_INFO_CAPA_TYPE 0x10 +#define IEEE80211_SMD_INFO_CAPA_PTK_PER_AP_MLD 0x20 + +struct ieee80211_smd_info { + u8 id[ETH_ALEN]; + u8 capa; + __le16 timeout; +} __packed; + +#endif /* LINUX_IEEE80211_UHR_H */ |