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Define an 802.11 PLCP header and constants. 

Define two new status codes for management frames.

Define 802.11 durations of important frame sequences, as will be
needed for ADMtek ADM8211 driver and others.
This commit is contained in:
dyoung 2003-05-13 05:51:46 +00:00
parent 7383a96ca6
commit 9302269223
1 changed files with 40 additions and 1 deletions
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41
sys/net/if_ieee80211.h
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@ -1,4 +1,4 @@
/* $NetBSD: if_ieee80211.h,v 1.27 2003/04/08 04:31:23 kml Exp $ */
/* $NetBSD: if_ieee80211.h,v 1.28 2003/05/13 05:51:46 dyoung Exp $ */
/*-
* Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
@ -40,6 +40,20 @@
#define IEEE80211_ADDR_LEN ETHER_ADDR_LEN
/* IEEE 802.11 PLCP header */
struct ieee80211_plcp_hdr {
u_int16_t i_sfd; /* IEEE80211_PLCP_SFD */
u_int8_t i_signal; /* MPDU data rate in 100Kb/s */
u_int8_t i_service; /* IEEE80211_PLCP_SERVICE */
u_int16_t i_length; /* MPDU duration in microseconds */
u_int16_t i_crc; /* CRC16 of i_signal, i_service,
* i_length
*/
} __attribute__((__packed__));
#define IEEE80211_PLCP_SFD 0xF3A0
#define IEEE80211_PLCP_SERVICE 0x00
/*
* generic definitions for IEEE 802.11 frames
*/
@ -155,6 +169,29 @@ typedef uint8_t *ieee80211_mgt_beacon_t;
#define IEEE80211_RATE_BASIC 0x80
#define IEEE80211_RATE_VAL 0x7f
/* One Time Unit (TU) is 1Kus = 1024 microseconds. */
#define IEEE80211_DUR_TU 1024
/* IEEE 802.11b durations for DSSS PHY in microseconds */
#define IEEE80211_DUR_DS_LONG_PREAMBLE 144
#define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
#define IEEE80211_DUR_DS_FAST_PLCPHDR 24
#define IEEE80211_DUR_DS_SLOW_PLCPHDR 48
#define IEEE80211_DUR_DS_SLOW_ACK 112
#define IEEE80211_DUR_DS_FAST_ACK 56
#define IEEE80211_DUR_DS_SLOW_CTS 112
#define IEEE80211_DUR_DS_FAST_CTS 56
#define IEEE80211_DUR_DS_SLOT 20
#define IEEE80211_DUR_DS_SIFS 10
#define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
#define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \
2 * IEEE80211_DUR_DS_SLOT)
#define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \
IEEE80211_DUR_DS_SLOW_ACK + \
IEEE80211_DUR_DS_LONG_PREAMBLE + \
IEEE80211_DUR_DS_SLOW_PLCPHDR + \
IEEE80211_DUR_DIFS)
/*
* Management information elements
*/
@ -264,6 +301,8 @@ typedef u_int8_t *ieee80211_mgt_auth_t;
#define IEEE80211_STATUS_SP_REQUIRED 19
#define IEEE80211_STATUS_PBCC_REQUIRED 20
#define IEEE80211_STATUS_CA_REQUIRED 21
#define IEEE80211_STATUS_TOO_MANY_STATIONS 22
#define IEEE80211_STATUS_RATES 23
#define IEEE80211_WEP_KEYLEN 5 /* 40bit */
#define IEEE80211_WEP_IVLEN 3 /* 24bit */