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Diffstat (limited to 'include/compat/linux/ieee80211.h')
| -rwxr-xr-x | include/compat/linux/ieee80211.h | 1852 |
1 files changed, 1852 insertions, 0 deletions
diff --git a/include/compat/linux/ieee80211.h b/include/compat/linux/ieee80211.h new file mode 100755 index 0000000..015bca2 --- /dev/null +++ b/include/compat/linux/ieee80211.h @@ -0,0 +1,1852 @@ +/* + * IEEE 802.11 defines + * + * 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> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef LINUX_IEEE80211_H +#define LINUX_IEEE80211_H + +#include <linux/types.h> +#include <asm/byteorder.h> + +/* + * DS bit usage + * + * TA = transmitter address + * RA = receiver address + * DA = destination address + * SA = source address + * + * ToDS FromDS A1(RA) A2(TA) A3 A4 Use + * ----------------------------------------------------------------- + * 0 0 DA SA BSSID - IBSS/DLS + * 0 1 DA BSSID SA - AP -> STA + * 1 0 BSSID SA DA - AP <- STA + * 1 1 RA TA DA SA unspecified (WDS) + */ + +#define FCS_LEN 4 + +#define IEEE80211_FCTL_VERS 0x0003 +#define IEEE80211_FCTL_FTYPE 0x000c +#define IEEE80211_FCTL_STYPE 0x00f0 +#define IEEE80211_FCTL_TODS 0x0100 +#define IEEE80211_FCTL_FROMDS 0x0200 +#define IEEE80211_FCTL_MOREFRAGS 0x0400 +#define IEEE80211_FCTL_RETRY 0x0800 +#define IEEE80211_FCTL_PM 0x1000 +#define IEEE80211_FCTL_MOREDATA 0x2000 +#define IEEE80211_FCTL_PROTECTED 0x4000 +#define IEEE80211_FCTL_ORDER 0x8000 + +#define IEEE80211_SCTL_FRAG 0x000F +#define IEEE80211_SCTL_SEQ 0xFFF0 + +#define IEEE80211_FTYPE_MGMT 0x0000 +#define IEEE80211_FTYPE_CTL 0x0004 +#define IEEE80211_FTYPE_DATA 0x0008 + +/* management */ +#define IEEE80211_STYPE_ASSOC_REQ 0x0000 +#define IEEE80211_STYPE_ASSOC_RESP 0x0010 +#define IEEE80211_STYPE_REASSOC_REQ 0x0020 +#define IEEE80211_STYPE_REASSOC_RESP 0x0030 +#define IEEE80211_STYPE_PROBE_REQ 0x0040 +#define IEEE80211_STYPE_PROBE_RESP 0x0050 +#define IEEE80211_STYPE_BEACON 0x0080 +#define IEEE80211_STYPE_ATIM 0x0090 +#define IEEE80211_STYPE_DISASSOC 0x00A0 +#define IEEE80211_STYPE_AUTH 0x00B0 +#define IEEE80211_STYPE_DEAUTH 0x00C0 +#define IEEE80211_STYPE_ACTION 0x00D0 + +/* control */ +#define IEEE80211_STYPE_BACK_REQ 0x0080 +#define IEEE80211_STYPE_BACK 0x0090 +#define IEEE80211_STYPE_PSPOLL 0x00A0 +#define IEEE80211_STYPE_RTS 0x00B0 +#define IEEE80211_STYPE_CTS 0x00C0 +#define IEEE80211_STYPE_ACK 0x00D0 +#define IEEE80211_STYPE_CFEND 0x00E0 +#define IEEE80211_STYPE_CFENDACK 0x00F0 + +/* data */ +#define IEEE80211_STYPE_DATA 0x0000 +#define IEEE80211_STYPE_DATA_CFACK 0x0010 +#define IEEE80211_STYPE_DATA_CFPOLL 0x0020 +#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 +#define IEEE80211_STYPE_NULLFUNC 0x0040 +#define IEEE80211_STYPE_CFACK 0x0050 +#define IEEE80211_STYPE_CFPOLL 0x0060 +#define IEEE80211_STYPE_CFACKPOLL 0x0070 +#define IEEE80211_STYPE_QOS_DATA 0x0080 +#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090 +#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0 +#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0 +#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0 +#define IEEE80211_STYPE_QOS_CFACK 0x00D0 +#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0 +#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0 + + +/* miscellaneous IEEE 802.11 constants */ +#define IEEE80211_MAX_FRAG_THRESHOLD 2352 +#define IEEE80211_MAX_RTS_THRESHOLD 2353 +#define IEEE80211_MAX_AID 2007 +#define IEEE80211_MAX_TIM_LEN 251 +/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section + 6.2.1.1.2. + + 802.11e clarifies the figure in section 7.1.2. The frame body is + up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */ +#define IEEE80211_MAX_DATA_LEN 2304 +/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */ +#define IEEE80211_MAX_FRAME_LEN 2352 + +#define IEEE80211_MAX_SSID_LEN 32 + +#define IEEE80211_MAX_MESH_ID_LEN 32 + +#define IEEE80211_QOS_CTL_LEN 2 +/* 1d tag mask */ +#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 +/* TID mask */ +#define IEEE80211_QOS_CTL_TID_MASK 0x000f +/* EOSP */ +#define IEEE80211_QOS_CTL_EOSP 0x0010 +/* ACK policy */ +#define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000 +#define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 +#define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040 +#define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060 +#define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060 +/* A-MSDU 802.11n */ +#define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 +/* Mesh Control 802.11s */ +#define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 + +/* U-APSD queue for WMM IEs sent by AP */ +#define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7) +#define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f + +/* U-APSD queues for WMM IEs sent by STA */ +#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0) +#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1) +#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2) +#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3) +#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f + +/* U-APSD max SP length for WMM IEs sent by STA */ +#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00 +#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01 +#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02 +#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03 +#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03 +#define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5 + +#define IEEE80211_HT_CTL_LEN 4 + +struct ieee80211_hdr { + __le16 frame_control; + __le16 duration_id; + u8 addr1[6]; + u8 addr2[6]; + u8 addr3[6]; + __le16 seq_ctrl; + u8 addr4[6]; +} __attribute__ ((packed)); + +struct ieee80211_hdr_3addr { + __le16 frame_control; + __le16 duration_id; + u8 addr1[6]; + u8 addr2[6]; + u8 addr3[6]; + __le16 seq_ctrl; +} __attribute__ ((packed)); + +struct ieee80211_qos_hdr { + __le16 frame_control; + __le16 duration_id; + u8 addr1[6]; + u8 addr2[6]; + u8 addr3[6]; + __le16 seq_ctrl; + __le16 qos_ctrl; +} __attribute__ ((packed)); + +/** + * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_tods(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0; +} + +/** + * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_fromds(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0; +} + +/** + * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_a4(__le16 fc) +{ + __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); + return (fc & tmp) == tmp; +} + +/** + * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_morefrags(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0; +} + +/** + * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_retry(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0; +} + +/** + * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_pm(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0; +} + +/** + * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_moredata(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0; +} + +/** + * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_protected(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0; +} + +/** + * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_has_order(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0; +} + +/** + * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_mgmt(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT); +} + +/** + * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_ctl(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL); +} + +/** + * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_data(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == + cpu_to_le16(IEEE80211_FTYPE_DATA); +} + +/** + * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_data_qos(__le16 fc) +{ + /* + * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need + * to check the one bit + */ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) == + cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA); +} + +/** + * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_data_present(__le16 fc) +{ + /* + * mask with 0x40 and test that that bit is clear to only return true + * for the data-containing substypes. + */ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) == + cpu_to_le16(IEEE80211_FTYPE_DATA); +} + +/** + * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_assoc_req(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ); +} + +/** + * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_assoc_resp(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP); +} + +/** + * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_reassoc_req(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ); +} + +/** + * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_reassoc_resp(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP); +} + +/** + * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_probe_req(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ); +} + +/** + * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_probe_resp(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); +} + +/** + * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_beacon(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON); +} + +/** + * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_atim(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM); +} + +/** + * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_disassoc(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC); +} + +/** + * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_auth(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); +} + +/** + * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_deauth(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH); +} + +/** + * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_action(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION); +} + +/** + * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_back_req(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ); +} + +/** + * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_back(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK); +} + +/** + * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_pspoll(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); +} + +/** + * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_rts(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); +} + +/** + * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_cts(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); +} + +/** + * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_ack(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK); +} + +/** + * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_cfend(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND); +} + +/** + * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_cfendack(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK); +} + +/** + * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_nullfunc(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC); +} + +/** + * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame + * @fc: frame control bytes in little-endian byteorder + */ +static inline int ieee80211_is_qos_nullfunc(__le16 fc) +{ + return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == + cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC); +} + +struct ieee80211s_hdr { + u8 flags; + u8 ttl; + __le32 seqnum; + u8 eaddr1[6]; + u8 eaddr2[6]; +} __attribute__ ((packed)); + +/* Mesh flags */ +#define MESH_FLAGS_AE_A4 0x1 +#define MESH_FLAGS_AE_A5_A6 0x2 +#define MESH_FLAGS_AE 0x3 +#define MESH_FLAGS_PS_DEEP 0x4 + +/** + * struct ieee80211_quiet_ie + * + * This structure refers to "Quiet information element" + */ +struct ieee80211_quiet_ie { + u8 count; + u8 period; + __le16 duration; + __le16 offset; +} __attribute__ ((packed)); + +/** + * struct ieee80211_msrment_ie + * + * This structure refers to "Measurement Request/Report information element" + */ +struct ieee80211_msrment_ie { + u8 token; + u8 mode; + u8 type; + u8 request[0]; +} __attribute__ ((packed)); + +/** + * struct ieee80211_channel_sw_ie + * + * This structure refers to "Channel Switch Announcement information element" + */ +struct ieee80211_channel_sw_ie { + u8 mode; + u8 new_ch_num; + u8 count; +} __attribute__ ((packed)); + +/** + * struct ieee80211_tim + * + * This structure refers to "Traffic Indication Map information element" + */ +struct ieee80211_tim_ie { + u8 dtim_count; + u8 dtim_period; + u8 bitmap_ctrl; + /* variable size: 1 - 251 bytes */ + u8 virtual_map[1]; +} __attribute__ ((packed)); + +/** + * struct ieee80211_meshconf_ie + * + * This structure refers to "Mesh Configuration information element" + */ +struct ieee80211_meshconf_ie { + u8 meshconf_psel; + u8 meshconf_pmetric; + u8 meshconf_congest; + u8 meshconf_synch; + u8 meshconf_auth; + u8 meshconf_form; + u8 meshconf_cap; +} __attribute__ ((packed)); + +/** + * struct ieee80211_rann_ie + * + * This structure refers to "Root Announcement information element" + */ +struct ieee80211_rann_ie { + u8 rann_flags; + u8 rann_hopcount; + u8 rann_ttl; + u8 rann_addr[6]; + u32 rann_seq; + u32 rann_interval; + u32 rann_metric; +} __attribute__ ((packed)); + +enum ieee80211_rann_flags { + RANN_FLAG_IS_GATE = 1 << 0, +}; + +#define WLAN_SA_QUERY_TR_ID_LEN 2 + +struct ieee80211_mgmt { + __le16 frame_control; + __le16 duration; + u8 da[6]; + u8 sa[6]; + u8 bssid[6]; + __le16 seq_ctrl; + union { + struct { + __le16 auth_alg; + __le16 auth_transaction; + __le16 status_code; + /* possibly followed by Challenge text */ + u8 variable[0]; + } __attribute__ ((packed)) auth; + struct { + __le16 reason_code; + } __attribute__ ((packed)) deauth; + struct { + __le16 capab_info; + __le16 listen_interval; + /* followed by SSID and Supported rates */ + u8 variable[0]; + } __attribute__ ((packed)) assoc_req; + struct { + __le16 capab_info; + __le16 status_code; + __le16 aid; + /* followed by Supported rates */ + u8 variable[0]; + } __attribute__ ((packed)) assoc_resp, reassoc_resp; + struct { + __le16 capab_info; + __le16 listen_interval; + u8 current_ap[6]; + /* followed by SSID and Supported rates */ + u8 variable[0]; + } __attribute__ ((packed)) reassoc_req; + struct { + __le16 reason_code; + } __attribute__ ((packed)) disassoc; + struct { + __le64 timestamp; + __le16 beacon_int; + __le16 capab_info; + /* followed by some of SSID, Supported rates, + * FH Params, DS Params, CF Params, IBSS Params, TIM */ + u8 variable[0]; + } __attribute__ ((packed)) beacon; + struct { + /* only variable items: SSID, Supported rates */ + u8 variable[0]; + } __attribute__ ((packed)) probe_req; + struct { + __le64 timestamp; + __le16 beacon_int; + __le16 capab_info; + /* followed by some of SSID, Supported rates, + * FH Params, DS Params, CF Params, IBSS Params */ + u8 variable[0]; + } __attribute__ ((packed)) probe_resp; + struct { + u8 category; + union { + struct { + u8 action_code; + u8 dialog_token; + u8 status_code; + u8 variable[0]; + } __attribute__ ((packed)) wme_action; + struct{ + u8 action_code; + u8 element_id; + u8 length; + struct ieee80211_channel_sw_ie sw_elem; + } __attribute__((packed)) chan_switch; + struct{ + u8 action_code; + u8 dialog_token; + u8 element_id; + u8 length; + struct ieee80211_msrment_ie msr_elem; + } __attribute__((packed)) measurement; + struct{ + u8 action_code; + u8 dialog_token; + __le16 capab; + __le16 timeout; + __le16 start_seq_num; + } __attribute__((packed)) addba_req; + struct{ + u8 action_code; + u8 dialog_token; + __le16 status; + __le16 capab; + __le16 timeout; + } __attribute__((packed)) addba_resp; + struct{ + u8 action_code; + __le16 params; + __le16 reason_code; + } __attribute__((packed)) delba; + struct { + u8 action_code; + u8 variable[0]; + } __attribute__((packed)) self_prot; + struct{ + u8 action_code; + u8 variable[0]; + } __attribute__((packed)) mesh_action; + struct { + u8 action; + u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; + } __attribute__ ((packed)) sa_query; + struct { + u8 action; + u8 smps_control; + } __attribute__ ((packed)) ht_smps; + struct { + u8 action_code; + u8 dialog_token; + __le16 capability; + u8 variable[0]; + } __packed tdls_discover_resp; + } u; + } __attribute__ ((packed)) action; + } u; +} __attribute__ ((packed)); + +/* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */ +#define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127 + +/* mgmt header + 1 byte category code */ +#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u) + + +/* Management MIC information element (IEEE 802.11w) */ +struct ieee80211_mmie { + u8 element_id; + u8 length; + __le16 key_id; + u8 sequence_number[6]; + u8 mic[8]; +} __attribute__ ((packed)); + +struct ieee80211_vendor_ie { + u8 element_id; + u8 len; + u8 oui[3]; + u8 oui_type; +} __packed; + +/* Control frames */ +struct ieee80211_rts { + __le16 frame_control; + __le16 duration; + u8 ra[6]; + u8 ta[6]; +} __attribute__ ((packed)); + +struct ieee80211_cts { + __le16 frame_control; + __le16 duration; + u8 ra[6]; +} __attribute__ ((packed)); + +struct ieee80211_pspoll { + __le16 frame_control; + __le16 aid; + u8 bssid[6]; + u8 ta[6]; +} __attribute__ ((packed)); + +/* TDLS */ + +/* Link-id information element */ +struct ieee80211_tdls_lnkie { + u8 ie_type; /* Link Identifier IE */ + u8 ie_len; + u8 bssid[6]; + u8 init_sta[6]; + u8 resp_sta[6]; +} __packed; + +struct ieee80211_tdls_data { + u8 da[6]; + u8 sa[6]; + __be16 ether_type; + u8 payload_type; + u8 category; + u8 action_code; + union { + struct { + u8 dialog_token; + __le16 capability; + u8 variable[0]; + } __packed setup_req; + struct { + __le16 status_code; + u8 dialog_token; + __le16 capability; + u8 variable[0]; + } __packed setup_resp; + struct { + __le16 status_code; + u8 dialog_token; + u8 variable[0]; + } __packed setup_cfm; + struct { + __le16 reason_code; + u8 variable[0]; + } __packed teardown; + struct { + u8 dialog_token; + u8 variable[0]; + } __packed discover_req; + } u; +} __packed; + +/** + * struct ieee80211_bar - HT Block Ack Request + * + * This structure refers to "HT BlockAckReq" as + * described in 802.11n draft section 7.2.1.7.1 + */ +struct ieee80211_bar { + __le16 frame_control; + __le16 duration; + __u8 ra[6]; + __u8 ta[6]; + __le16 control; + __le16 start_seq_num; +} __attribute__((packed)); + +/* 802.11 BAR control masks */ +#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 +#define IEEE80211_BAR_CTRL_MULTI_TID 0x0002 +#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 +#define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 +#define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 + +#define IEEE80211_HT_MCS_MASK_LEN 10 + +/** + * struct ieee80211_mcs_info - MCS information + * @rx_mask: RX mask + * @rx_highest: highest supported RX rate. If set represents + * the highest supported RX data rate in units of 1 Mbps. + * If this field is 0 this value should not be used to + * consider the highest RX data rate supported. + * @tx_params: TX parameters + */ +struct ieee80211_mcs_info { + u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN]; + __le16 rx_highest; + u8 tx_params; + u8 reserved[3]; +} __attribute__((packed)); + +/* 802.11n HT capability MSC set */ +#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff +#define IEEE80211_HT_MCS_TX_DEFINED 0x01 +#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02 +/* value 0 == 1 stream etc */ +#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C +#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 +#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4 +#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10 + +/* + * 802.11n D5.0 20.3.5 / 20.6 says: + * - indices 0 to 7 and 32 are single spatial stream + * - 8 to 31 are multiple spatial streams using equal modulation + * [8..15 for two streams, 16..23 for three and 24..31 for four] + * - remainder are multiple spatial streams using unequal modulation + */ +#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33 +#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \ + (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8) + +/** + * struct ieee80211_ht_cap - HT capabilities + * + * This structure is the "HT capabilities element" as + * described in 802.11n D5.0 7.3.2.57 + */ +struct ieee80211_ht_cap { + __le16 cap_info; + u8 ampdu_params_info; + + /* 16 bytes MCS information */ + struct ieee80211_mcs_info mcs; + + __le16 extended_ht_cap_info; + __le32 tx_BF_cap_info; + u8 antenna_selection_info; +} __attribute__ ((packed)); + +/* 802.11n HT capabilities masks (for cap_info) */ +#define IEEE80211_HT_CAP_LDPC_CODING 0x0001 +#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002 +#define IEEE80211_HT_CAP_SM_PS 0x000C +#define IEEE80211_HT_CAP_SM_PS_SHIFT 2 +#define IEEE80211_HT_CAP_GRN_FLD 0x0010 +#define IEEE80211_HT_CAP_SGI_20 0x0020 +#define IEEE80211_HT_CAP_SGI_40 0x0040 +#define IEEE80211_HT_CAP_TX_STBC 0x0080 +#define IEEE80211_HT_CAP_RX_STBC 0x0300 +#define IEEE80211_HT_CAP_RX_STBC_SHIFT 8 +#define IEEE80211_HT_CAP_DELAY_BA 0x0400 +#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 +#define IEEE80211_HT_CAP_DSSSCCK40 0x1000 +#define IEEE80211_HT_CAP_RESERVED 0x2000 +#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 +#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 + +/* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */ +#define IEEE80211_HT_EXT_CAP_PCO 0x0001 +#define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006 +#define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1 +#define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300 +#define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8 +#define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400 +#define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800 + +/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */ +#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03 +#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C +#define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2 + +/* + * Maximum length of AMPDU that the STA can receive. + * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) + */ +enum ieee80211_max_ampdu_length_exp { + IEEE80211_HT_MAX_AMPDU_8K = 0, + IEEE80211_HT_MAX_AMPDU_16K = 1, + IEEE80211_HT_MAX_AMPDU_32K = 2, + IEEE80211_HT_MAX_AMPDU_64K = 3 +}; + +#define IEEE80211_HT_MAX_AMPDU_FACTOR 13 + +/* Minimum MPDU start spacing */ +enum ieee80211_min_mpdu_spacing { + IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */ + IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */ + IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */ + IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */ + IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */ + IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */ + IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */ + IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */ +}; + +/** + * struct ieee80211_ht_info - HT information + * + * This structure is the "HT information element" as + * described in 802.11n D5.0 7.3.2.58 + */ +struct ieee80211_ht_info { + u8 control_chan; + u8 ht_param; + __le16 operation_mode; + __le16 stbc_param; + u8 basic_set[16]; +} __attribute__ ((packed)); + +/* for ht_param */ +#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 +#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00 +#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01 +#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03 +#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04 +#define IEEE80211_HT_PARAM_RIFS_MODE 0x08 +#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10 +#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0 + +/* for operation_mode */ +#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003 +#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0 +#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1 +#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2 +#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3 +#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004 +#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010 + +/* for stbc_param */ +#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040 +#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 +#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100 +#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200 +#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400 +#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800 + + +/* block-ack parameters */ +#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 +#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C +#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0 +#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 +#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 + +/* + * A-PMDU buffer sizes + * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) + */ +#define IEEE80211_MIN_AMPDU_BUF 0x8 +#define IEEE80211_MAX_AMPDU_BUF 0x40 + + +/* Spatial Multiplexing Power Save Modes (for capability) */ +#define WLAN_HT_CAP_SM_PS_STATIC 0 +#define WLAN_HT_CAP_SM_PS_DYNAMIC 1 +#define WLAN_HT_CAP_SM_PS_INVALID 2 +#define WLAN_HT_CAP_SM_PS_DISABLED 3 + +/* for SM power control field lower two bits */ +#define WLAN_HT_SMPS_CONTROL_DISABLED 0 +#define WLAN_HT_SMPS_CONTROL_STATIC 1 +#define WLAN_HT_SMPS_CONTROL_DYNAMIC 3 + +/* Authentication algorithms */ +#define WLAN_AUTH_OPEN 0 +#define WLAN_AUTH_SHARED_KEY 1 +#define WLAN_AUTH_FT 2 +#define WLAN_AUTH_SAE 3 +#define WLAN_AUTH_LEAP 128 + +#define WLAN_AUTH_CHALLENGE_LEN 128 + +#define WLAN_CAPABILITY_ESS (1<<0) +#define WLAN_CAPABILITY_IBSS (1<<1) + +/* + * A mesh STA sets the ESS and IBSS capability bits to zero. + * however, this holds true for p2p probe responses (in the p2p_find + * phase) as well. + */ +#define WLAN_CAPABILITY_IS_STA_BSS(cap) \ + (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS))) + +#define WLAN_CAPABILITY_CF_POLLABLE (1<<2) +#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) +#define WLAN_CAPABILITY_PRIVACY (1<<4) +#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) +#define WLAN_CAPABILITY_PBCC (1<<6) +#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) + +/* 802.11h */ +#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) +#define WLAN_CAPABILITY_QOS (1<<9) +#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) +#define WLAN_CAPABILITY_DSSS_OFDM (1<<13) +/* measurement */ +#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0) +#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1) +#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2) + +#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0 +#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1 +#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2 + + +/* 802.11g ERP information element */ +#define WLAN_ERP_NON_ERP_PRESENT (1<<0) +#define WLAN_ERP_USE_PROTECTION (1<<1) +#define WLAN_ERP_BARKER_PREAMBLE (1<<2) + +/* WLAN_ERP_BARKER_PREAMBLE values */ +enum { + WLAN_ERP_PREAMBLE_SHORT = 0, + WLAN_ERP_PREAMBLE_LONG = 1, +}; + +/* Status codes */ +enum ieee80211_statuscode { + WLAN_STATUS_SUCCESS = 0, + WLAN_STATUS_UNSPECIFIED_FAILURE = 1, + WLAN_STATUS_CAPS_UNSUPPORTED = 10, + WLAN_STATUS_REASSOC_NO_ASSOC = 11, + WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, + WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, + WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, + WLAN_STATUS_CHALLENGE_FAIL = 15, + WLAN_STATUS_AUTH_TIMEOUT = 16, + WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, + WLAN_STATUS_ASSOC_DENIED_RATES = 18, + /* 802.11b */ + WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, + WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, + WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, + /* 802.11h */ + WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, + WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, + WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, + /* 802.11g */ + WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, + WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, + /* 802.11w */ + WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30, + WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31, + /* 802.11i */ + WLAN_STATUS_INVALID_IE = 40, + WLAN_STATUS_INVALID_GROUP_CIPHER = 41, + WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, + WLAN_STATUS_INVALID_AKMP = 43, + WLAN_STATUS_UNSUPP_RSN_VERSION = 44, + WLAN_STATUS_INVALID_RSN_IE_CAP = 45, + WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, + /* 802.11e */ + WLAN_STATUS_UNSPECIFIED_QOS = 32, + WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, + WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, + WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, + WLAN_STATUS_REQUEST_DECLINED = 37, + WLAN_STATUS_INVALID_QOS_PARAM = 38, + WLAN_STATUS_CHANGE_TSPEC = 39, + WLAN_STATUS_WAIT_TS_DELAY = 47, + WLAN_STATUS_NO_DIRECT_LINK = 48, + WLAN_STATUS_STA_NOT_PRESENT = 49, + WLAN_STATUS_STA_NOT_QSTA = 50, + /* 802.11s */ + WLAN_STATUS_ANTI_CLOG_REQUIRED = 76, + WLAN_STATUS_FCG_NOT_SUPP = 78, + WLAN_STATUS_STA_NO_TBTT = 78, +}; + + +/* Reason codes */ +enum ieee80211_reasoncode { + WLAN_REASON_UNSPECIFIED = 1, + WLAN_REASON_PREV_AUTH_NOT_VALID = 2, + WLAN_REASON_DEAUTH_LEAVING = 3, + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, + WLAN_REASON_DISASSOC_AP_BUSY = 5, + WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, + WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, + WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, + WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, + /* 802.11h */ + WLAN_REASON_DISASSOC_BAD_POWER = 10, + WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, + /* 802.11i */ + WLAN_REASON_INVALID_IE = 13, + WLAN_REASON_MIC_FAILURE = 14, + WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, + WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, + WLAN_REASON_IE_DIFFERENT = 17, + WLAN_REASON_INVALID_GROUP_CIPHER = 18, + WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, + WLAN_REASON_INVALID_AKMP = 20, + WLAN_REASON_UNSUPP_RSN_VERSION = 21, + WLAN_REASON_INVALID_RSN_IE_CAP = 22, + WLAN_REASON_IEEE8021X_FAILED = 23, + WLAN_REASON_CIPHER_SUITE_REJECTED = 24, + /* 802.11e */ + WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, + WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, + WLAN_REASON_DISASSOC_LOW_ACK = 34, + WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, + WLAN_REASON_QSTA_LEAVE_QBSS = 36, + WLAN_REASON_QSTA_NOT_USE = 37, + WLAN_REASON_QSTA_REQUIRE_SETUP = 38, + WLAN_REASON_QSTA_TIMEOUT = 39, + WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, + /* 802.11s */ + WLAN_REASON_MESH_PEER_CANCELED = 52, + WLAN_REASON_MESH_MAX_PEERS = 53, + WLAN_REASON_MESH_CONFIG = 54, + WLAN_REASON_MESH_CLOSE = 55, + WLAN_REASON_MESH_MAX_RETRIES = 56, + WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57, + WLAN_REASON_MESH_INVALID_GTK = 58, + WLAN_REASON_MESH_INCONSISTENT_PARAM = 59, + WLAN_REASON_MESH_INVALID_SECURITY = 60, + WLAN_REASON_MESH_PATH_ERROR = 61, + WLAN_REASON_MESH_PATH_NOFORWARD = 62, + WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63, + WLAN_REASON_MAC_EXISTS_IN_MBSS = 64, + WLAN_REASON_MESH_CHAN_REGULATORY = 65, + WLAN_REASON_MESH_CHAN = 66, +}; + + +/* Information Element IDs */ +enum ieee80211_eid { + WLAN_EID_SSID = 0, + WLAN_EID_SUPP_RATES = 1, + WLAN_EID_FH_PARAMS = 2, + WLAN_EID_DS_PARAMS = 3, + WLAN_EID_CF_PARAMS = 4, + WLAN_EID_TIM = 5, + WLAN_EID_IBSS_PARAMS = 6, + WLAN_EID_CHALLENGE = 16, + + WLAN_EID_COUNTRY = 7, + WLAN_EID_HP_PARAMS = 8, + WLAN_EID_HP_TABLE = 9, + WLAN_EID_REQUEST = 10, + + WLAN_EID_QBSS_LOAD = 11, + WLAN_EID_EDCA_PARAM_SET = 12, + WLAN_EID_TSPEC = 13, + WLAN_EID_TCLAS = 14, + WLAN_EID_SCHEDULE = 15, + WLAN_EID_TS_DELAY = 43, + WLAN_EID_TCLAS_PROCESSING = 44, + WLAN_EID_QOS_CAPA = 46, + /* 802.11z */ + WLAN_EID_LINK_ID = 101, + /* 802.11s */ + WLAN_EID_MESH_CONFIG = 113, + WLAN_EID_MESH_ID = 114, + WLAN_EID_LINK_METRIC_REPORT = 115, + WLAN_EID_CONGESTION_NOTIFICATION = 116, + WLAN_EID_PEER_MGMT = 117, + WLAN_EID_CHAN_SWITCH_PARAM = 118, + WLAN_EID_MESH_AWAKE_WINDOW = 119, + WLAN_EID_BEACON_TIMING = 120, + WLAN_EID_MCCAOP_SETUP_REQ = 121, + WLAN_EID_MCCAOP_SETUP_RESP = 122, + WLAN_EID_MCCAOP_ADVERT = 123, + WLAN_EID_MCCAOP_TEARDOWN = 124, + WLAN_EID_GANN = 125, + WLAN_EID_RANN = 126, + WLAN_EID_PREQ = 130, + WLAN_EID_PREP = 131, + WLAN_EID_PERR = 132, + WLAN_EID_PXU = 137, + WLAN_EID_PXUC = 138, + WLAN_EID_AUTH_MESH_PEER_EXCH = 139, + WLAN_EID_MIC = 140, + + WLAN_EID_PWR_CONSTRAINT = 32, + WLAN_EID_PWR_CAPABILITY = 33, + WLAN_EID_TPC_REQUEST = 34, + WLAN_EID_TPC_REPORT = 35, + WLAN_EID_SUPPORTED_CHANNELS = 36, + WLAN_EID_CHANNEL_SWITCH = 37, + WLAN_EID_MEASURE_REQUEST = 38, + WLAN_EID_MEASURE_REPORT = 39, + WLAN_EID_QUIET = 40, + WLAN_EID_IBSS_DFS = 41, + + WLAN_EID_ERP_INFO = 42, + WLAN_EID_EXT_SUPP_RATES = 50, + + WLAN_EID_HT_CAPABILITY = 45, + WLAN_EID_HT_INFORMATION = 61, + + WLAN_EID_RSN = 48, + WLAN_EID_MMIE = 76, + WLAN_EID_WPA = 221, + WLAN_EID_GENERIC = 221, + WLAN_EID_VENDOR_SPECIFIC = 221, + WLAN_EID_QOS_PARAMETER = 222, + + WLAN_EID_AP_CHAN_REPORT = 51, + WLAN_EID_NEIGHBOR_REPORT = 52, + WLAN_EID_RCPI = 53, + WLAN_EID_BSS_AVG_ACCESS_DELAY = 63, + WLAN_EID_ANTENNA_INFO = 64, + WLAN_EID_RSNI = 65, + WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66, + WLAN_EID_BSS_AVAILABLE_CAPACITY = 67, + WLAN_EID_BSS_AC_ACCESS_DELAY = 68, + WLAN_EID_RRM_ENABLED_CAPABILITIES = 70, + WLAN_EID_MULTIPLE_BSSID = 71, + WLAN_EID_BSS_COEX_2040 = 72, + WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74, + WLAN_EID_EXT_CAPABILITY = 127, + + WLAN_EID_MOBILITY_DOMAIN = 54, + WLAN_EID_FAST_BSS_TRANSITION = 55, + WLAN_EID_TIMEOUT_INTERVAL = 56, + WLAN_EID_RIC_DATA = 57, + WLAN_EID_RIC_DESCRIPTOR = 75, + + WLAN_EID_DSE_REGISTERED_LOCATION = 58, + WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59, + WLAN_EID_EXT_CHANSWITCH_ANN = 60, +}; + +/* Action category code */ +enum ieee80211_category { + WLAN_CATEGORY_SPECTRUM_MGMT = 0, + WLAN_CATEGORY_QOS = 1, + WLAN_CATEGORY_DLS = 2, + WLAN_CATEGORY_BACK = 3, + WLAN_CATEGORY_PUBLIC = 4, + WLAN_CATEGORY_HT = 7, + WLAN_CATEGORY_SA_QUERY = 8, + WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9, + WLAN_CATEGORY_TDLS = 12, + WLAN_CATEGORY_MESH_ACTION = 13, + WLAN_CATEGORY_MULTIHOP_ACTION = 14, + WLAN_CATEGORY_SELF_PROTECTED = 15, + WLAN_CATEGORY_WMM = 17, + WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126, + WLAN_CATEGORY_VENDOR_SPECIFIC = 127, +}; + +/* SPECTRUM_MGMT action code */ +enum ieee80211_spectrum_mgmt_actioncode { + WLAN_ACTION_SPCT_MSR_REQ = 0, + WLAN_ACTION_SPCT_MSR_RPRT = 1, + WLAN_ACTION_SPCT_TPC_REQ = 2, + WLAN_ACTION_SPCT_TPC_RPRT = 3, + WLAN_ACTION_SPCT_CHL_SWITCH = 4, +}; + +/* HT action codes */ +enum ieee80211_ht_actioncode { + WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0, + WLAN_HT_ACTION_SMPS = 1, + WLAN_HT_ACTION_PSMP = 2, + WLAN_HT_ACTION_PCO_PHASE = 3, + WLAN_HT_ACTION_CSI = 4, + WLAN_HT_ACTION_NONCOMPRESSED_BF = 5, + WLAN_HT_ACTION_COMPRESSED_BF = 6, + WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7, +}; + +/* Self Protected Action codes */ +enum ieee80211_self_protected_actioncode { + WLAN_SP_RESERVED = 0, + WLAN_SP_MESH_PEERING_OPEN = 1, + WLAN_SP_MESH_PEERING_CONFIRM = 2, + WLAN_SP_MESH_PEERING_CLOSE = 3, + WLAN_SP_MGK_INFORM = 4, + WLAN_SP_MGK_ACK = 5, +}; + +/* Mesh action codes */ +enum ieee80211_mesh_actioncode { + WLAN_MESH_ACTION_LINK_METRIC_REPORT, + WLAN_MESH_ACTION_HWMP_PATH_SELECTION, + WLAN_MESH_ACTION_GATE_ANNOUNCEMENT, + WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION, + WLAN_MESH_ACTION_MCCA_SETUP_REQUEST, + WLAN_MESH_ACTION_MCCA_SETUP_REPLY, + WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST, + WLAN_MESH_ACTION_MCCA_ADVERTISEMENT, + WLAN_MESH_ACTION_MCCA_TEARDOWN, + WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST, + WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE, +}; + +/* Security key length */ +enum ieee80211_key_len { + WLAN_KEY_LEN_WEP40 = 5, + WLAN_KEY_LEN_WEP104 = 13, + WLAN_KEY_LEN_CCMP = 16, + WLAN_KEY_LEN_TKIP = 32, + WLAN_KEY_LEN_AES_CMAC = 16, +}; + +/* Public action codes */ +enum ieee80211_pub_actioncode { + WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14, +}; + +/* TDLS action codes */ +enum ieee80211_tdls_actioncode { + WLAN_TDLS_SETUP_REQUEST = 0, + WLAN_TDLS_SETUP_RESPONSE = 1, + WLAN_TDLS_SETUP_CONFIRM = 2, + WLAN_TDLS_TEARDOWN = 3, + WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4, + WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5, + WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6, + WLAN_TDLS_PEER_PSM_REQUEST = 7, + WLAN_TDLS_PEER_PSM_RESPONSE = 8, + WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9, + WLAN_TDLS_DISCOVERY_REQUEST = 10, +}; + +/* + * TDLS capabililites to be enabled in the 5th byte of the + * @WLAN_EID_EXT_CAPABILITY information element + */ +#define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5) +#define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6) + +/* TDLS specific payload type in the LLC/SNAP header */ +#define WLAN_TDLS_SNAP_RFTYPE 0x2 + +/** + * enum - mesh path selection protocol identifier + * + * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol + * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will + * be specified in a vendor specific information element + */ +enum { + IEEE80211_PATH_PROTOCOL_HWMP = 0, + IEEE80211_PATH_PROTOCOL_VENDOR = 255, +}; + +/** + * enum - mesh path selection metric identifier + * + * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric + * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be + * specified in a vendor specific information element + */ +enum { + IEEE80211_PATH_METRIC_AIRTIME = 0, + IEEE80211_PATH_METRIC_VENDOR = 255, +}; + + +/* + * IEEE 802.11-2007 7.3.2.9 Country information element + * + * Minimum length is 8 octets, ie len must be evenly + * divisible by 2 + */ + +/* Although the spec says 8 I'm seeing 6 in practice */ +#define IEEE80211_COUNTRY_IE_MIN_LEN 6 + +/* The Country String field of the element shall be 3 octets in length */ +#define IEEE80211_COUNTRY_STRING_LEN 3 + +/* + * For regulatory extension stuff see IEEE 802.11-2007 + * Annex I (page 1141) and Annex J (page 1147). Also + * review 7.3.2.9. + * + * When dot11RegulatoryClassesRequired is true and the + * first_channel/reg_extension_id is >= 201 then the IE + * compromises of the 'ext' struct represented below: + * + * - Regulatory extension ID - when generating IE this just needs + * to be monotonically increasing for each triplet passed in + * the IE + * - Regulatory class - index into set of rules + * - Coverage class - index into air propagation time (Table 7-27), + * in microseconds, you can compute the air propagation time from + * the index by multiplying by 3, so index 10 yields a propagation + * of 10 us. Valid values are 0-31, values 32-255 are not defined + * yet. A value of 0 inicates air propagation of <= 1 us. + * + * See also Table I.2 for Emission limit sets and table + * I.3 for Behavior limit sets. Table J.1 indicates how to map + * a reg_class to an emission limit set and behavior limit set. + */ +#define IEEE80211_COUNTRY_EXTENSION_ID 201 + +/* + * Channels numbers in the IE must be monotonically increasing + * if dot11RegulatoryClassesRequired is not true. + * + * If dot11RegulatoryClassesRequired is true consecutive + * subband triplets following a regulatory triplet shall + * have monotonically increasing first_channel number fields. + * + * Channel numbers shall not overlap. + * + * Note that max_power is signed. + */ +struct ieee80211_country_ie_triplet { + union { + struct { + u8 first_channel; + u8 num_channels; + s8 max_power; + } __attribute__ ((packed)) chans; + struct { + u8 reg_extension_id; + u8 reg_class; + u8 coverage_class; + } __attribute__ ((packed)) ext; + }; +} __attribute__ ((packed)); + +enum ieee80211_timeout_interval_type { + WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */, + WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */, + WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */, +}; + +/* BACK action code */ +enum ieee80211_back_actioncode { + WLAN_ACTION_ADDBA_REQ = 0, + WLAN_ACTION_ADDBA_RESP = 1, + WLAN_ACTION_DELBA = 2, +}; + +/* BACK (block-ack) parties */ +enum ieee80211_back_parties { + WLAN_BACK_RECIPIENT = 0, + WLAN_BACK_INITIATOR = 1, +}; + +/* SA Query action */ +enum ieee80211_sa_query_action { + WLAN_ACTION_SA_QUERY_REQUEST = 0, + WLAN_ACTION_SA_QUERY_RESPONSE = 1, +}; + + +/* cipher suite selectors */ +#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 +#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 +#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 +/* reserved: 0x000FAC03 */ +#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 +#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 +#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06 + +#define WLAN_CIPHER_SUITE_SMS4 0x00147201 + +/* AKM suite selectors */ +#define WLAN_AKM_SUITE_8021X 0x000FAC01 +#define WLAN_AKM_SUITE_PSK 0x000FAC02 +#define WLAN_AKM_SUITE_SAE 0x000FAC08 +#define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09 + +#define WLAN_MAX_KEY_LEN 32 + +#define WLAN_PMKID_LEN 16 + +#define WLAN_OUI_WFA 0x506f9a +#define WLAN_OUI_TYPE_WFA_P2P 9 + +/* + * WMM/802.11e Tspec Element + */ +#define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F +#define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1 + +enum ieee80211_tspec_status_code { + IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0, + IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1, +}; + +struct ieee80211_tspec_ie { + u8 element_id; + u8 len; + u8 oui[3]; + u8 oui_type; + u8 oui_subtype; + u8 version; + __le16 tsinfo; + u8 tsinfo_resvd; + __le16 nominal_msdu; + __le16 max_msdu; + __le32 min_service_int; + __le32 max_service_int; + __le32 inactivity_int; + __le32 suspension_int; + __le32 service_start_time; + __le32 min_data_rate; + __le32 mean_data_rate; + __le32 peak_data_rate; + __le32 max_burst_size; + __le32 delay_bound; + __le32 min_phy_rate; + __le16 sba; + __le16 medium_time; +} __packed; + +/** + * ieee80211_get_qos_ctl - get pointer to qos control bytes + * @hdr: the frame + * + * The qos ctrl bytes come after the frame_control, duration, seq_num + * and 3 or 4 addresses of length ETH_ALEN. + * 3 addr: 2 + 2 + 2 + 3*6 = 24 + * 4 addr: 2 + 2 + 2 + 4*6 = 30 + */ +static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) +{ + if (ieee80211_has_a4(hdr->frame_control)) + return (u8 *)hdr + 30; + else + return (u8 *)hdr + 24; +} + +/** + * ieee80211_get_SA - get pointer to SA + * @hdr: the frame + * + * Given an 802.11 frame, this function returns the offset + * to the source address (SA). It does not verify that the + * header is long enough to contain the address, and the + * header must be long enough to contain the frame control + * field. + */ +static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) +{ + if (ieee80211_has_a4(hdr->frame_control)) + return hdr->addr4; + if (ieee80211_has_fromds(hdr->frame_control)) + return hdr->addr3; + return hdr->addr2; +} + +/** + * ieee80211_get_DA - get pointer to DA + * @hdr: the frame + * + * Given an 802.11 frame, this function returns the offset + * to the destination address (DA). It does not verify that + * the header is long enough to contain the address, and the + * header must be long enough to contain the frame control + * field. + */ +static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) +{ + if (ieee80211_has_tods(hdr->frame_control)) + return hdr->addr3; + else + return hdr->addr1; +} + +/** + * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame + * @hdr: the frame (buffer must include at least the first octet of payload) + */ +static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr) +{ + if (ieee80211_is_disassoc(hdr->frame_control) || + ieee80211_is_deauth(hdr->frame_control)) + return true; + + if (ieee80211_is_action(hdr->frame_control)) { + u8 *category; + + /* + * Action frames, excluding Public Action frames, are Robust + * Management Frames. However, if we are looking at a Protected + * frame, skip the check since the data may be encrypted and + * the frame has already been found to be a Robust Management + * Frame (by the other end). + */ + if (ieee80211_has_protected(hdr->frame_control)) + return true; + category = ((u8 *) hdr) + 24; + return *category != WLAN_CATEGORY_PUBLIC && + *category != WLAN_CATEGORY_HT && + *category != WLAN_CATEGORY_SELF_PROTECTED && + *category != WLAN_CATEGORY_VENDOR_SPECIFIC; + } + + return false; +} + +/** + * ieee80211_fhss_chan_to_freq - get channel frequency + * @channel: the FHSS channel + * + * Convert IEEE802.11 FHSS channel to frequency (MHz) + * Ref IEEE 802.11-2007 section 14.6 + */ +static inline int ieee80211_fhss_chan_to_freq(int channel) +{ + if ((channel > 1) && (channel < 96)) + return channel + 2400; + else + return -1; +} + +/** + * ieee80211_freq_to_fhss_chan - get channel + * @freq: the channels frequency + * + * Convert frequency (MHz) to IEEE802.11 FHSS channel + * Ref IEEE 802.11-2007 section 14.6 + */ +static inline int ieee80211_freq_to_fhss_chan(int freq) +{ + if ((freq > 2401) && (freq < 2496)) + return freq - 2400; + else + return -1; +} + +/** + * ieee80211_dsss_chan_to_freq - get channel center frequency + * @channel: the DSSS channel + * + * Convert IEEE802.11 DSSS channel to the center frequency (MHz). + * Ref IEEE 802.11-2007 section 15.6 + */ +static inline int ieee80211_dsss_chan_to_freq(int channel) +{ + if ((channel > 0) && (channel < 14)) + return 2407 + (channel * 5); + else if (channel == 14) + return 2484; + else + return -1; +} + +/** + * ieee80211_freq_to_dsss_chan - get channel + * @freq: the frequency + * + * Convert frequency (MHz) to IEEE802.11 DSSS channel + * Ref IEEE 802.11-2007 section 15.6 + * + * This routine selects the channel with the closest center frequency. + */ +static inline int ieee80211_freq_to_dsss_chan(int freq) +{ + if ((freq >= 2410) && (freq < 2475)) + return (freq - 2405) / 5; + else if ((freq >= 2482) && (freq < 2487)) + return 14; + else + return -1; +} + +/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back + * Ref IEEE 802.11-2007 section 18.4.6.2 + * + * The channels and frequencies are the same as those defined for DSSS + */ +#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan) +#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq) + +/* Convert IEEE802.11 ERP channel to frequency (MHz) and back + * Ref IEEE 802.11-2007 section 19.4.2 + */ +#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan) +#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq) + +/** + * ieee80211_ofdm_chan_to_freq - get channel center frequency + * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz + * @channel: the OFDM channel + * + * Convert IEEE802.11 OFDM channel to center frequency (MHz) + * Ref IEEE 802.11-2007 section 17.3.8.3.2 + */ +static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel) +{ + if ((channel > 0) && (channel <= 200) && + (s_freq >= 4000)) + return s_freq + (channel * 5); + else + return -1; +} + +/** + * ieee80211_freq_to_ofdm_channel - get channel + * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz + * @freq: the frequency + * + * Convert frequency (MHz) to IEEE802.11 OFDM channel + * Ref IEEE 802.11-2007 section 17.3.8.3.2 + * + * This routine selects the channel with the closest center frequency. + */ +static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq) +{ + if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) && + (s_freq >= 4000)) + return (freq + 2 - s_freq) / 5; + else + return -1; +} + +/** + * ieee80211_tu_to_usec - convert time units (TU) to microseconds + * @tu: the TUs + */ +static inline unsigned long ieee80211_tu_to_usec(unsigned long tu) +{ + return 1024 * tu; +} + +/** + * ieee80211_check_tim - check if AID bit is set in TIM + * @tim: the TIM IE + * @tim_len: length of the TIM IE + * @aid: the AID to look for + */ +static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim, + u8 tim_len, u16 aid) +{ + u8 mask; + u8 index, indexn1, indexn2; + + if (unlikely(!tim || tim_len < sizeof(*tim))) + return false; + + aid &= 0x3fff; + index = aid / 8; + mask = 1 << (aid & 7); + + indexn1 = tim->bitmap_ctrl & 0xfe; + indexn2 = tim_len + indexn1 - 4; + + if (index < indexn1 || index > indexn2) + return false; + + index -= indexn1; + + return !!(tim->virtual_map[index] & mask); +} + +#endif /* LINUX_IEEE80211_H */ |