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#ifndef IEEE80211_DEFINITIONS_H_
#define IEEE80211_DEFINITIONS_H_
/* Some IEEE 802.11 definitions in this file are derived from the linux kernel
* include/linux/ieee80211.h file and are covered by the following copyrights.
*
* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
* Copyright (c) 2002-2003, Jouni Malinen
* Copyright (c) 2005, Devicescape Software, Inc.
* Copyright (c) 2006, Michael Wu
* Copyright (c) 2008, Michael Buesch
*/
/* Convert a mask number to a mask bitmask.
* Use this to convert FOOBAR_M into a bitmask. */
#define MASK(m) ((1 << (m + 1)) - 1)
/* Convert a bit-number to a mask with that bit set (only) */
#define BIT(nr) (1 << (nr))
/* Frame Check Sequence length; in bytes */
#define FCS_LEN 4
/* Smallest possible frame length; in bytes. */
#define MIN_IEEE80211_FRAME_LEN (((6 + 2) + 2) + FCS_LEN)
/* Maximum possible frame length; in bytes. */
#define MAX_IEEE80211_FRAME_LEN (2352 + FCS_LEN)
/* The PLCP header length; in bytes. */
#define PLCP_HDR_LEN 6
/* PLCP header CCK-encoding ratecodes.
* The ratecode is stored in the first byte of the PLCP header. */
#define PLCP_CCK_1M 0x0A /* 1 MBit/s */
#define PLCP_CCK_2M 0x14 /* 2 MBit/s */
#define PLCP_CCK_5M 0x37 /* 5 MBit/s */
#define PLCP_CCK_11M 0x6E /* 11 MBit/s */
/* Frame control field WORD(!)-offset in the frame */
#define FCTL_WOFFSET ((PLCP_HDR_LEN + 0) / 2)
#define FCTL_VERS_M 1 /* MASK() value: Frame header version */
#define FCTL_VERS_S 0 /* Shift: Frame header version */
#define FCTL_FTYPE_M 1 /* MASK() value: Frame type */
#define FCTL_FTYPE_S 2 /* Shift: Frame type */
#define FCTL_STYPE_M 3 /* MASK() value: Frame subtype */
#define FCTL_STYPE_S 4 /* Shift: Frame subtype */
/* Frame control field contents */
#define FCTL_TODS 8 /* bit 8: To DS */
#define FCTL_FROMDS 9 /* bit 9: From DS */
#define FCTL_MOREFRAGS 10 /* bit 10: More frags */
#define FCTL_RETRY 11 /* bit 11: Frame retry */
#define FCTL_PM 12 /* bit 12: PM */
#define FCTL_MOREDATA 13 /* bit 13: More data */
#define FCTL_PROT 14 /* bit 14: Protected */
#define FCTL_ORDER 15 /* bit 15: Order */
/* Frame types. (rightshifted!) */
#define FTYPE_MGMT (0x0000 >> FCTL_FTYPE_S)
#define FTYPE_CTL (0x0004 >> FCTL_FTYPE_S)
#define FTYPE_DATA (0x0008 >> FCTL_FTYPE_S)
/* Management frame subtypes (rightshifted!) */
#define STYPE_ASSOC_REQ (0x0000 >> FCTL_STYPE_S)
#define STYPE_ASSOC_RESP (0x0010 >> FCTL_STYPE_S)
#define STYPE_REASSOC_REQ (0x0020 >> FCTL_STYPE_S)
#define STYPE_REASSOC_RESP (0x0030 >> FCTL_STYPE_S)
#define STYPE_PROBE_REQ (0x0040 >> FCTL_STYPE_S)
#define STYPE_PROBE_RESP (0x0050 >> FCTL_STYPE_S)
#define STYPE_BEACON (0x0080 >> FCTL_STYPE_S)
#define STYPE_ATIM (0x0090 >> FCTL_STYPE_S)
#define STYPE_DISASSOC (0x00A0 >> FCTL_STYPE_S)
#define STYPE_AUTH (0x00B0 >> FCTL_STYPE_S)
#define STYPE_DEAUTH (0x00C0 >> FCTL_STYPE_S)
#define STYPE_ACTION (0x00D0 >> FCTL_STYPE_S)
/* Control frame subtypes (rightshifted!) */
#define STYPE_BACK_REQ (0x0080 >> FCTL_STYPE_S)
#define STYPE_BACK (0x0090 >> FCTL_STYPE_S)
#define STYPE_PSPOLL (0x00A0 >> FCTL_STYPE_S)
#define STYPE_RTS (0x00B0 >> FCTL_STYPE_S)
#define STYPE_CTS (0x00C0 >> FCTL_STYPE_S)
#define STYPE_ACK (0x00D0 >> FCTL_STYPE_S)
#define STYPE_CFEND (0x00E0 >> FCTL_STYPE_S)
#define STYPE_CFENDACK (0x00F0 >> FCTL_STYPE_S)
/* Data frame subtypes (rightshifted!) */
#define STYPE_DATA (0x0000 >> FCTL_STYPE_S)
#define STYPE_DATA_CFACK (0x0010 >> FCTL_STYPE_S)
#define STYPE_DATA_CFPOLL (0x0020 >> FCTL_STYPE_S)
#define STYPE_DATA_CFACKPOLL (0x0030 >> FCTL_STYPE_S)
#define STYPE_NULLFUNC (0x0040 >> FCTL_STYPE_S)
#define STYPE_CFACK (0x0050 >> FCTL_STYPE_S)
#define STYPE_CFPOLL (0x0060 >> FCTL_STYPE_S)
#define STYPE_CFACKPOLL (0x0070 >> FCTL_STYPE_S)
#define STYPE_QOS_DATA (0x0080 >> FCTL_STYPE_S)
#define STYPE_QOS_BIT (7 - FCTL_STYPE_S) /* QoS indicator bit */
#define STYPE_QOS_DATA_CFACK (0x0090 >> FCTL_STYPE_S)
#define STYPE_QOS_DATA_CFPOLL (0x00A0 >> FCTL_STYPE_S)
#define STYPE_QOS_DATA_CFACKPOLL (0x00B0 >> FCTL_STYPE_S)
#define STYPE_QOS_NULLFUNC (0x00C0 >> FCTL_STYPE_S)
#define STYPE_QOS_CFACK (0x00D0 >> FCTL_STYPE_S)
#define STYPE_QOS_CFPOLL (0x00E0 >> FCTL_STYPE_S)
#define STYPE_QOS_CFACKPOLL (0x00F0 >> FCTL_STYPE_S)
/* Frame duration / ID field WORD(!)-offset in the frame */
#define DURID_WOFFSET ((PLCP_HDR_LEN + 2) / 2)
#define DURID_CFP 15 /* bit 15: Set if TX-by-PC & non-QoS & CFP */
/* Address 1 WORD(!)-offset in the frame */
#define ADDR1_WOFFSET ((PLCP_HDR_LEN + 4) / 2)
#define ADDR_MCAST_BIT 0 /* bit 0 indicates a multicast address */
/* Address 2 WORD(!)-offset in the frame */
#define ADDR2_WOFFSET ((PLCP_HDR_LEN + 10) / 2)
/* Address 3 WORD(!)-offset in the frame */
#define ADDR3_WOFFSET ((PLCP_HDR_LEN + 16) / 2)
/* Sequence counter WORD(!)-offset in the frame */
#define SEQCTL_WOFFSET ((PLCP_HDR_LEN + 22) / 2)
/* Address 4 WORD(!)-offset in the frame */
#define ADDR4_WOFFSET ((PLCP_HDR_LEN + 24) / 2)
#endif /* IEEE80211_DEFINITIONS_H_ */
// vim: syntax=b43 ts=8
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