ieee80211: add code to obtain and parse 6 GHz operation field (821273a5) · Commits · 戴 / test

include/linux/ieee80211.h

+51 −1

Original line number	Diff line number	Diff line
		@@ -2209,6 +2209,28 @@ ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
		#define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR 0x40000000
		#define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED 0x80000000

		/**
		* ieee80211_he_6ghz_oper - HE 6 GHz operation Information field
		* @primary: primary channel
		* @control: control flags
		* @ccfs0: channel center frequency segment 0
		* @ccfs1: channel center frequency segment 1
		* @minrate: minimum rate (in 1 Mbps units)
		*/
		struct ieee80211_he_6ghz_oper {
		u8 primary;
		#define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH 0x3
		#define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ 0
		#define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ 1
		#define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ 2
		#define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ 3
		#define IEEE80211_HE_6GHZ_OPER_CTRL_DUP_BEACON 0x4
		u8 control;
		u8 ccfs0;
		u8 ccfs1;
		u8 minrate;
		} __packed;

		/*
		* ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
		* @he_oper_ie: byte data of the He Operations IE, stating from the byte
		@@ -2235,7 +2257,7 @@ ieee80211_he_oper_size(const u8 *he_oper_ie)
		if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
		oper_len++;
		if (he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO)
		oper_len += 4;
		oper_len += sizeof(struct ieee80211_he_6ghz_oper);

		/* Add the first byte (extension ID) to the total length */
		oper_len++;
		@@ -2243,6 +2265,34 @@ ieee80211_he_oper_size(const u8 *he_oper_ie)
		return oper_len;
		}

		/**
		* ieee80211_he_6ghz_oper - obtain 6 GHz operation field
		* @he_oper: HE operation element (must be pre-validated for size)
		* but may be %NULL
		*
		* Return: a pointer to the 6 GHz operation field, or %NULL
		*/
		static inline const struct ieee80211_he_6ghz_oper *
		ieee80211_he_6ghz_oper(const struct ieee80211_he_operation *he_oper)
		{
		const u8 ret = (void )&he_oper->optional;
		u32 he_oper_params;

		if (!he_oper)
		return NULL;

		he_oper_params = le32_to_cpu(he_oper->he_oper_params);

		if (!(he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO))
		return NULL;
		if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
		ret += 3;
		if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
		ret++;

		return (void *)ret;
		}

		/* HE Spatial Reuse defines */
		#define IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT 0x4
		#define IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT 0x8

Admin message