/* $OpenBSD: ieee80211.h,v 1.20 2007/06/21 21:21:54 damien Exp $ */ /* $NetBSD: ieee80211.h,v 1.6 2004/04/30 23:51:53 dyoung Exp $ */ /*- * Copyright (c) 2001 Atsushi Onoe * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.5 2004/04/05 17:47:40 sam Exp $ */ #ifndef _NET80211_IEEE80211_H_ #define _NET80211_IEEE80211_H_ /* * 802.11 protocol definitions. */ #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */ /* is 802.11 address multicast/broadcast? */ #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) /* IEEE 802.11 PLCP header */ struct ieee80211_plcp_hdr { u_int16_t i_sfd; u_int8_t i_signal; u_int8_t i_service; u_int16_t i_length; u_int16_t i_crc; } __packed; #define IEEE80211_PLCP_SFD 0xF3A0 #define IEEE80211_PLCP_SERVICE 0x00 #define IEEE80211_PLCP_SERVICE_PBCC 0x08 /* PBCC encoded */ #define IEEE80211_PLCP_SERVICE_LENEXT 0x80 /* length extension bit */ /* * generic definitions for IEEE 802.11 frames */ struct ieee80211_frame { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_addr1[IEEE80211_ADDR_LEN]; u_int8_t i_addr2[IEEE80211_ADDR_LEN]; u_int8_t i_addr3[IEEE80211_ADDR_LEN]; u_int8_t i_seq[2]; /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ /* see below */ } __packed; struct ieee80211_qosframe { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_addr1[IEEE80211_ADDR_LEN]; u_int8_t i_addr2[IEEE80211_ADDR_LEN]; u_int8_t i_addr3[IEEE80211_ADDR_LEN]; u_int8_t i_seq[2]; u_int8_t i_qos[2]; /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ /* see below */ } __packed; struct ieee80211_frame_addr4 { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_addr1[IEEE80211_ADDR_LEN]; u_int8_t i_addr2[IEEE80211_ADDR_LEN]; u_int8_t i_addr3[IEEE80211_ADDR_LEN]; u_int8_t i_seq[2]; u_int8_t i_addr4[IEEE80211_ADDR_LEN]; } __packed; struct ieee80211_qosframe_addr4 { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_addr1[IEEE80211_ADDR_LEN]; u_int8_t i_addr2[IEEE80211_ADDR_LEN]; u_int8_t i_addr3[IEEE80211_ADDR_LEN]; u_int8_t i_seq[2]; u_int8_t i_addr4[IEEE80211_ADDR_LEN]; u_int8_t i_qos[2]; } __packed; /* * Management Notification Frame */ struct ieee80211_mnf { u_int8_t mnf_category; u_int8_t mnf_action; u_int8_t mnf_dialog; u_int8_t mnf_status; } __packed; #define MNF_SETUP_REQ 0 #define MNF_SETUP_RESP 1 #define MNF_TEARDOWN 2 #define IEEE80211_FC0_VERSION_MASK 0x03 #define IEEE80211_FC0_VERSION_SHIFT 0 #define IEEE80211_FC0_VERSION_0 0x00 #define IEEE80211_FC0_TYPE_MASK 0x0c #define IEEE80211_FC0_TYPE_SHIFT 2 #define IEEE80211_FC0_TYPE_MGT 0x00 #define IEEE80211_FC0_TYPE_CTL 0x04 #define IEEE80211_FC0_TYPE_DATA 0x08 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 /* for TYPE_MGT */ #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 /* for TYPE_CTL */ #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 /* for TYPE_DATA (bit combination) */ #define IEEE80211_FC0_SUBTYPE_DATA 0x00 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 #define IEEE80211_FC0_SUBTYPE_QOS 0x80 #define IEEE80211_FC1_DIR_MASK 0x03 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ #define IEEE80211_FC1_MORE_FRAG 0x04 #define IEEE80211_FC1_RETRY 0x08 #define IEEE80211_FC1_PWR_MGT 0x10 #define IEEE80211_FC1_MORE_DATA 0x20 #define IEEE80211_FC1_WEP 0x40 #define IEEE80211_FC1_ORDER 0x80 #define IEEE80211_SEQ_FRAG_MASK 0x000f #define IEEE80211_SEQ_FRAG_SHIFT 0 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 #define IEEE80211_SEQ_SEQ_SHIFT 4 #define IEEE80211_NWID_LEN 32 #define IEEE80211_QOS_TXOP 0x00ff /* bit 8 is reserved */ #define IEEE80211_QOS_ACKPOLICY 0x0600 #define IEEE80211_QOS_ESOP 0x0800 #define IEEE80211_QOS_TID 0xf000 /* * Control frames. */ struct ieee80211_frame_min { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_addr1[IEEE80211_ADDR_LEN]; u_int8_t i_addr2[IEEE80211_ADDR_LEN]; /* FCS */ } __packed; struct ieee80211_frame_rts { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_ra[IEEE80211_ADDR_LEN]; u_int8_t i_ta[IEEE80211_ADDR_LEN]; /* FCS */ } __packed; struct ieee80211_frame_cts { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_ra[IEEE80211_ADDR_LEN]; /* FCS */ } __packed; struct ieee80211_frame_ack { u_int8_t i_fc[2]; u_int8_t i_dur[2]; u_int8_t i_ra[IEEE80211_ADDR_LEN]; /* FCS */ } __packed; struct ieee80211_frame_pspoll { u_int8_t i_fc[2]; u_int8_t i_aid[2]; u_int8_t i_bssid[IEEE80211_ADDR_LEN]; u_int8_t i_ta[IEEE80211_ADDR_LEN]; /* FCS */ } __packed; struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ u_int8_t i_fc[2]; u_int8_t i_dur[2]; /* should be zero */ u_int8_t i_ra[IEEE80211_ADDR_LEN]; u_int8_t i_bssid[IEEE80211_ADDR_LEN]; /* FCS */ } __packed; /* * BEACON management packets * * octet timestamp[8] * octet beacon interval[2] * octet capability information[2] * information element * octet elemid * octet length * octet information[length] */ typedef u_int8_t *ieee80211_mgt_beacon_t; #define IEEE80211_BEACON_INTERVAL(beacon) \ ((beacon)[8] | ((beacon)[9] << 8)) #define IEEE80211_BEACON_CAPABILITY(beacon) \ ((beacon)[10] | ((beacon)[11] << 8)) #define IEEE80211_CAPINFO_ESS 0x0001 #define IEEE80211_CAPINFO_IBSS 0x0002 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 #define IEEE80211_CAPINFO_PRIVACY 0x0010 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 #define IEEE80211_CAPINFO_PBCC 0x0040 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 #define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 #define IEEE80211_CAPINFO_QOS 0x0200 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 #define IEEE80211_CAPINFO_APSD 0x0800 /* bit 12 is reserved */ #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 #define IEEE80211_CAPINFO_DELAYED_B_ACK 0x4000 #define IEEE80211_CAPINFO_IMMEDIATE_ACK 0x8000 #define IEEE80211_CAPINFO_BITS \ "\10\01ESS\02IBSS\03CF_POLLABLE\04CF_POLLREQ" \ "\05PRIVACY\06SHORT_PREAMBLE\07PBCC\10CHNL_AGILITY" \ "\11SPECTRUM_MGMT\12QOS\13SHORT_SLOTTIME\14APSD" \ "\16DSSSOFDM\17DELAYED_B_ACK\20IMMEDIATE_ACK" /* * Channel attributes */ #define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */ #define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */ #define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */ #define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */ #define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */ #define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */ #define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */ #define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */ #define IEEE80211_CHAN_XR 0x1000 /* Extended range OFDM channel */ /* * Useful combinations of channel characteristics. */ #define IEEE80211_CHAN_FHSS \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK) #define IEEE80211_CHAN_A \ (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM) #define IEEE80211_CHAN_B \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK) #define IEEE80211_CHAN_PUREG \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM) #define IEEE80211_CHAN_G \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN) #define IEEE80211_CHAN_T \ (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO) #define IEEE80211_CHAN_TG \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO) /* * 802.11i/WPA information element (maximally sized). */ struct ieee80211_ie_wpa { u_int8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ u_int8_t wpa_len; /* length in bytes */ u_int8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ u_int8_t wpa_type; /* OUI type */ u_int16_t wpa_version; /* spec revision */ u_int32_t wpa_mcipher[1]; /* multicast/group key cipher */ u_int16_t wpa_uciphercnt; /* # pairwise key ciphers */ u_int32_t wpa_uciphers[8];/* ciphers */ u_int16_t wpa_authselcnt; /* authentication selector cnt*/ u_int32_t wpa_authsels[8];/* selectors */ u_int16_t wpa_caps; /* 802.11i capabilities */ u_int16_t wpa_pmkidcnt; /* 802.11i pmkid count */ u_int16_t wpa_pmkids[8]; /* 802.11i pmkids */ } __packed; /* * Management information element payloads */ union ieee80211_information { char ssid[IEEE80211_NWID_LEN+1]; struct rates { u_int8_t *p; } rates; struct fh { u_int16_t dwell; u_int8_t set; u_int8_t pattern; u_int8_t index; } fh; struct ds { u_int8_t channel; } ds; struct cf { u_int8_t count; u_int8_t period; u_int8_t maxdur[2]; u_int8_t dur[2]; } cf; struct tim { u_int8_t count; u_int8_t period; u_int8_t bitctl; /* u_int8_t pvt[251]; The driver needs to use this. */ } tim; struct ibss { u_int16_t atim; } ibss; struct challenge { u_int8_t *p; u_int8_t len; } challenge; struct erp { u_int8_t flags; } erp; struct country { u_int8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ struct { u_int8_t schan; /* starting channel */ u_int8_t nchan; /* number channels */ u_int8_t maxtxpwr; } band[4]; /* up to 4 sub bands */ } country; struct ath { u_int8_t flags; } ath; }; enum { IEEE80211_ELEMID_SSID = 0, IEEE80211_ELEMID_RATES = 1, IEEE80211_ELEMID_FHPARMS = 2, IEEE80211_ELEMID_DSPARMS = 3, IEEE80211_ELEMID_CFPARMS = 4, IEEE80211_ELEMID_TIM = 5, IEEE80211_ELEMID_IBSSPARMS = 6, IEEE80211_ELEMID_COUNTRY = 7, IEEE80211_ELEMID_QBSS_LOAD = 11, IEEE80211_ELEMID_EDCAPARMS = 12, IEEE80211_ELEMID_CHALLENGE = 16, /* 17-31 reserved for challenge text extension */ IEEE80211_ELEMID_ERP = 42, IEEE80211_ELEMID_QOS_CAP = 46, IEEE80211_ELEMID_RSN = 48, IEEE80211_ELEMID_XRATES = 50, IEEE80211_ELEMID_TPC = 150, IEEE80211_ELEMID_CCKM = 156, IEEE80211_ELEMID_VENDOR = 221 /* vendor private */ }; #define IEEE80211_CHALLENGE_LEN 128 #define IEEE80211_RATE_BASIC 0x80 #define IEEE80211_RATE_VAL 0x7f #define IEEE80211_RATE_SIZE 8 /* 802.11 standard */ #define IEEE80211_RATE_MAXSIZE 15 /* max rates we'll handle */ /* ERP information element flags */ #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 #define IEEE80211_ERP_USE_PROTECTION 0x02 #define IEEE80211_ERP_BARKER_MODE 0x04 /* * 802.11e EDCA Access Categories. */ enum ieee80211_edca_ac { EDCA_AC_BK = 1, /* Background */ EDCA_AC_BE = 0, /* Best Effort */ EDCA_AC_VI = 2, /* Video */ EDCA_AC_VO = 3 /* Voice */ }; #define EDCA_NUM_AC 4 /* number of TID values (traffic identifier) */ #define IEEE80211_NUM_TID 16 /* Atheros private advanced capabilities info */ #define ATHEROS_CAP_TURBO_PRIME 0x01 #define ATHEROS_CAP_COMPRESSION 0x02 #define ATHEROS_CAP_FAST_FRAME 0x04 /* bits 3-6 reserved */ #define ATHEROS_CAP_BOOST 0x80 #define WPA_CSE_NULL 0x00 #define WPA_CSE_WEP40 0x01 #define WPA_CSE_TKIP 0x02 #define WPA_CSE_WRAP 0x03 /* WPA2/802.11i */ #define WPA_CSE_CCMP 0x04 #define WPA_CSE_WEP104 0x05 #define WPA_ASE_NONE 0x00 #define WPA_ASE_8021X_UNSPEC 0x01 #define WPA_ASE_8021X_PSK 0x02 #define RSN_CSE_NULL 0x00 #define RSN_CSE_WEP40 0x01 #define RSN_CSE_TKIP 0x02 #define RSN_CSE_WRAP 0x03 #define RSN_CSE_CCMP 0x04 #define RSN_CSE_WEP104 0x05 #define RSN_ASE_NONE 0x00 #define RSN_ASE_8021X_UNSPEC 0x01 #define RSN_ASE_8021X_PSK 0x02 /* Organizationally Unique Identifiers */ /* See http://standards.ieee.org/regauth/oui/oui.txt for a list */ #define ATHEROS_OUI ((const u_int8_t[]){ 0x00, 0x03, 0x7f }) #define BROADCOM_OUI ((const u_int8_t[]){ 0c00, 0x90, 0x4c }) #define IEEE80211_OUI ((const u_int8_t[]){ 0x00, 0x0f, 0xac }) #define MICROSOFT_OUI ((const u_int8_t[]){ 0x00, 0x50, 0xf2 }) /* * AUTH management packets * * octet algo[2] * octet seq[2] * octet status[2] * octet chal.id * octet chal.length * octet chal.text[253] */ typedef u_int8_t *ieee80211_mgt_auth_t; #define IEEE80211_AUTH_ALGORITHM(auth) \ ((auth)[0] | ((auth)[1] << 8)) #define IEEE80211_AUTH_TRANSACTION(auth) \ ((auth)[2] | ((auth)[3] << 8)) #define IEEE80211_AUTH_STATUS(auth) \ ((auth)[4] | ((auth)[5] << 8)) #define IEEE80211_AUTH_ALG_OPEN 0x0000 #define IEEE80211_AUTH_ALG_SHARED 0x0001 #define IEEE80211_AUTH_ALG_LEAP 0x0080 enum { IEEE80211_AUTH_OPEN_REQUEST = 1, IEEE80211_AUTH_OPEN_RESPONSE = 2 }; enum { IEEE80211_AUTH_SHARED_REQUEST = 1, IEEE80211_AUTH_SHARED_CHALLENGE = 2, IEEE80211_AUTH_SHARED_RESPONSE = 3, IEEE80211_AUTH_SHARED_PASS = 4 }; /* * Reason codes * * Unlisted codes are reserved */ enum { IEEE80211_REASON_UNSPECIFIED = 1, IEEE80211_REASON_AUTH_EXPIRE = 2, IEEE80211_REASON_AUTH_LEAVE = 3, IEEE80211_REASON_ASSOC_EXPIRE = 4, IEEE80211_REASON_ASSOC_TOOMANY = 5, IEEE80211_REASON_NOT_AUTHED = 6, IEEE80211_REASON_NOT_ASSOCED = 7, IEEE80211_REASON_ASSOC_LEAVE = 8, IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, IEEE80211_REASON_RSN_REQUIRED = 11, IEEE80211_REASON_RSN_INCONSISTENT = 12, IEEE80211_REASON_IE_INVALID = 13, IEEE80211_REASON_MIC_FAILURE = 14, IEEE80211_STATUS_SUCCESS = 0, IEEE80211_STATUS_UNSPECIFIED = 1, IEEE80211_STATUS_CAPINFO = 10, IEEE80211_STATUS_NOT_ASSOCED = 11, IEEE80211_STATUS_OTHER = 12, IEEE80211_STATUS_ALG = 13, IEEE80211_STATUS_SEQUENCE = 14, IEEE80211_STATUS_CHALLENGE = 15, IEEE80211_STATUS_TIMEOUT = 16, IEEE80211_STATUS_TOOMANY = 17, IEEE80211_STATUS_BASIC_RATE = 18, IEEE80211_STATUS_SP_REQUIRED = 19, IEEE80211_STATUS_PBCC_REQUIRED = 20, IEEE80211_STATUS_CA_REQUIRED = 21, IEEE80211_STATUS_TOO_MANY_STATIONS = 22, IEEE80211_STATUS_RATES = 23, IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26 }; #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ #define IEEE80211_WEP_NKID 4 /* number of key ids */ /* WEP header constants */ #define IEEE80211_WEP_IVLEN 3 /* 24bit */ #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ #define IEEE80211_CRC_LEN 4 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ IEEE80211_WEP_KIDLEN + \ IEEE80211_WEP_CRCLEN) /* * 802.11i defines an extended IV for use with non-WEP ciphers. * When the EXTIV bit is set in the key id byte an additional * 4 bytes immediately follow the IV for TKIP. For CCMP the * EXTIV bit is likewise set but the 8 bytes represent the * CCMP header rather than IV+extended-IV. */ #define IEEE80211_WEP_EXTIV 0x20 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ /* * Maximum acceptable MTU is: * IEEE80211_MAX_LEN - WEP overhead - CRC - * QoS overhead - RSN/WPA overhead * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default * mtu is Ethernet-compatible; it's set by ether_ifattach. */ #define IEEE80211_MTU_MAX 2290 #define IEEE80211_MTU_MIN 32 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) #define IEEE80211_ACK_LEN \ (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) #define IEEE80211_MIN_LEN \ (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) /* * The 802.11 spec says at most 2007 stations may be * associated at once. For most AP's this is way more * than is feasible so we use a default of 1800. This * number may be overridden by the driver and/or by * user configuration. */ #define IEEE80211_AID_MAX 2007 #define IEEE80211_AID_DEF 1800 #define IEEE80211_AID(b) ((b) &~ 0xc000) #define IEEE80211_AID_SET(b, w) \ ((w)[IEEE80211_AID(b) / 32] |= (1 << (IEEE80211_AID(b) % 32))) #define IEEE80211_AID_CLR(b, w) \ ((w)[IEEE80211_AID(b) / 32] &= ~(1 << (IEEE80211_AID(b) % 32))) #define IEEE80211_AID_ISSET(b, w) \ ((w)[IEEE80211_AID(b) / 32] & (1 << (IEEE80211_AID(b) % 32))) /* * RTS frame length parameters. The default is specified in * the 802.11 spec. The max may be wrong for jumbo frames. */ #define IEEE80211_RTS_DEFAULT 512 #define IEEE80211_RTS_MIN 1 #define IEEE80211_RTS_MAX IEEE80211_MAX_LEN /* 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_PREAMBLE_DIFFERENCE \ (IEEE80211_DUR_DS_LONG_PREAMBLE - IEEE80211_DUR_DS_SHORT_PREAMBLE) #define IEEE80211_DUR_DS_FAST_PLCPHDR 24 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 #define IEEE80211_DUR_DS_PLCPHDR_DIFFERENCE \ (IEEE80211_DUR_DS_SLOW_PLCPHDR - IEEE80211_DUR_DS_FAST_PLCPHDR) #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) enum { IEEE80211_AUTH_NONE = 0, IEEE80211_AUTH_OPEN = 1, /* open */ IEEE80211_AUTH_SHARED = 2, /* shared-key */ IEEE80211_AUTH_8021X = 3, /* 802.1x */ IEEE80211_AUTH_AUTO = 4, /* auto-select/accept */ IEEE80211_AUTH_WPA = 5, /* WPA w/ 802.1x */ IEEE80211_AUTH_WPA_PSK = 6, /* WPA w/ preshared key */ IEEE80211_AUTH_WPA2 = 7, /* WPA2 w/ 802.1x */ IEEE80211_AUTH_WPA2_PSK = 8 /* WPA2 w/ preshared key */ }; #endif /* _NET80211_IEEE80211_H_ */