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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | /* SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) */ /* * * Macros, types, and functions to handle 802.11 mgmt frames * * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. * -------------------------------------------------------------------- * * linux-wlan * * -------------------------------------------------------------------- * * Inquiries regarding the linux-wlan Open Source project can be * made directly to: * * AbsoluteValue Systems Inc. * info@linux-wlan.com * http://www.linux-wlan.com * * -------------------------------------------------------------------- * * Portions of the development of this software were funded by * Intersil Corporation as part of PRISM(R) chipset product development. * * -------------------------------------------------------------------- * * This file declares the constants and types used in the interface * between a wlan driver and the user mode utilities. * * Notes: * - Constant values are always in HOST byte order. To assign * values to multi-byte fields they _must_ be converted to * ieee byte order. To retrieve multi-byte values from incoming * frames, they must be converted to host order. * * - The len member of the frame structure does NOT!!! include * the MAC CRC. Therefore, the len field on rx'd frames should * have 4 subtracted from it. * * All functions declared here are implemented in p80211.c * * The types, macros, and functions defined here are primarily * used for encoding and decoding management frames. They are * designed to follow these patterns of use: * * DECODE: * 1) a frame of length len is received into buffer b * 2) using the hdr structure and macros, we determine the type * 3) an appropriate mgmt frame structure, mf, is allocated and zeroed * 4) mf.hdr = b * mf.buf = b * mf.len = len * 5) call mgmt_decode( mf ) * 6) the frame field pointers in mf are now set. Note that any * multi-byte frame field values accessed using the frame field * pointers are in ieee byte order and will have to be converted * to host order. * * ENCODE: * 1) Library client allocates buffer space for maximum length * frame of the desired type * 2) Library client allocates a mgmt frame structure, called mf, * of the desired type * 3) Set the following: * mf.type = <desired type> * mf.buf = <allocated buffer address> * 4) call mgmt_encode( mf ) * 5) all of the fixed field pointers and fixed length information element * pointers in mf are now set to their respective locations in the * allocated space (fortunately, all variable length information elements * fall at the end of their respective frames). * 5a) The length field is set to include the last of the fixed and fixed * length fields. It may have to be updated for optional or variable * length information elements. * 6) Optional and variable length information elements are special cases * and must be handled individually by the client code. * -------------------------------------------------------------------- */ #ifndef _P80211MGMT_H #define _P80211MGMT_H #ifndef _P80211HDR_H #include "p80211hdr.h" #endif /*-- Information Element IDs --------------------*/ #define WLAN_EID_SSID 0 #define WLAN_EID_SUPP_RATES 1 #define WLAN_EID_FH_PARMS 2 #define WLAN_EID_DS_PARMS 3 #define WLAN_EID_CF_PARMS 4 #define WLAN_EID_TIM 5 #define WLAN_EID_IBSS_PARMS 6 /*-- values 7-15 reserved --*/ #define WLAN_EID_CHALLENGE 16 /*-- values 17-31 reserved for challenge text extension --*/ /*-- values 32-255 reserved --*/ /*-- Reason Codes -------------------------------*/ #define WLAN_MGMT_REASON_RSVD 0 #define WLAN_MGMT_REASON_UNSPEC 1 #define WLAN_MGMT_REASON_PRIOR_AUTH_INVALID 2 #define WLAN_MGMT_REASON_DEAUTH_LEAVING 3 #define WLAN_MGMT_REASON_DISASSOC_INACTIVE 4 #define WLAN_MGMT_REASON_DISASSOC_AP_BUSY 5 #define WLAN_MGMT_REASON_CLASS2_NONAUTH 6 #define WLAN_MGMT_REASON_CLASS3_NONASSOC 7 #define WLAN_MGMT_REASON_DISASSOC_STA_HASLEFT 8 #define WLAN_MGMT_REASON_CANT_ASSOC_NONAUTH 9 /*-- Status Codes -------------------------------*/ #define WLAN_MGMT_STATUS_SUCCESS 0 #define WLAN_MGMT_STATUS_UNSPEC_FAILURE 1 #define WLAN_MGMT_STATUS_CAPS_UNSUPPORTED 10 #define WLAN_MGMT_STATUS_REASSOC_NO_ASSOC 11 #define WLAN_MGMT_STATUS_ASSOC_DENIED_UNSPEC 12 #define WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG 13 #define WLAN_MGMT_STATUS_RX_AUTH_NOSEQ 14 #define WLAN_MGMT_STATUS_CHALLENGE_FAIL 15 #define WLAN_MGMT_STATUS_AUTH_TIMEOUT 16 #define WLAN_MGMT_STATUS_ASSOC_DENIED_BUSY 17 #define WLAN_MGMT_STATUS_ASSOC_DENIED_RATES 18 /* p80211b additions */ #define WLAN_MGMT_STATUS_ASSOC_DENIED_NOSHORT 19 #define WLAN_MGMT_STATUS_ASSOC_DENIED_NOPBCC 20 #define WLAN_MGMT_STATUS_ASSOC_DENIED_NOAGILITY 21 /*-- Auth Algorithm Field ---------------------------*/ #define WLAN_AUTH_ALG_OPENSYSTEM 0 #define WLAN_AUTH_ALG_SHAREDKEY 1 /*-- Management Frame Field Offsets -------------*/ /* Note: Not all fields are listed because of variable lengths, */ /* see the code in p80211.c to see how we search for fields */ /* Note: These offsets are from the start of the frame data */ #define WLAN_BEACON_OFF_TS 0 #define WLAN_BEACON_OFF_BCN_int 8 #define WLAN_BEACON_OFF_CAPINFO 10 #define WLAN_BEACON_OFF_SSID 12 #define WLAN_DISASSOC_OFF_REASON 0 #define WLAN_ASSOCREQ_OFF_CAP_INFO 0 #define WLAN_ASSOCREQ_OFF_LISTEN_int 2 #define WLAN_ASSOCREQ_OFF_SSID 4 #define WLAN_ASSOCRESP_OFF_CAP_INFO 0 #define WLAN_ASSOCRESP_OFF_STATUS 2 #define WLAN_ASSOCRESP_OFF_AID 4 #define WLAN_ASSOCRESP_OFF_SUPP_RATES 6 #define WLAN_REASSOCREQ_OFF_CAP_INFO 0 #define WLAN_REASSOCREQ_OFF_LISTEN_int 2 #define WLAN_REASSOCREQ_OFF_CURR_AP 4 #define WLAN_REASSOCREQ_OFF_SSID 10 #define WLAN_REASSOCRESP_OFF_CAP_INFO 0 #define WLAN_REASSOCRESP_OFF_STATUS 2 #define WLAN_REASSOCRESP_OFF_AID 4 #define WLAN_REASSOCRESP_OFF_SUPP_RATES 6 #define WLAN_PROBEREQ_OFF_SSID 0 #define WLAN_PROBERESP_OFF_TS 0 #define WLAN_PROBERESP_OFF_BCN_int 8 #define WLAN_PROBERESP_OFF_CAP_INFO 10 #define WLAN_PROBERESP_OFF_SSID 12 #define WLAN_AUTHEN_OFF_AUTH_ALG 0 #define WLAN_AUTHEN_OFF_AUTH_SEQ 2 #define WLAN_AUTHEN_OFF_STATUS 4 #define WLAN_AUTHEN_OFF_CHALLENGE 6 #define WLAN_DEAUTHEN_OFF_REASON 0 /*-- Capability Field ---------------------------*/ #define WLAN_GET_MGMT_CAP_INFO_ESS(n) ((n) & BIT(0)) #define WLAN_GET_MGMT_CAP_INFO_IBSS(n) (((n) & BIT(1)) >> 1) #define WLAN_GET_MGMT_CAP_INFO_CFPOLLABLE(n) (((n) & BIT(2)) >> 2) #define WLAN_GET_MGMT_CAP_INFO_CFPOLLREQ(n) (((n) & BIT(3)) >> 3) #define WLAN_GET_MGMT_CAP_INFO_PRIVACY(n) (((n) & BIT(4)) >> 4) /* p80211b additions */ #define WLAN_GET_MGMT_CAP_INFO_SHORT(n) (((n) & BIT(5)) >> 5) #define WLAN_GET_MGMT_CAP_INFO_PBCC(n) (((n) & BIT(6)) >> 6) #define WLAN_GET_MGMT_CAP_INFO_AGILITY(n) (((n) & BIT(7)) >> 7) #define WLAN_SET_MGMT_CAP_INFO_ESS(n) (n) #define WLAN_SET_MGMT_CAP_INFO_IBSS(n) ((n) << 1) #define WLAN_SET_MGMT_CAP_INFO_CFPOLLABLE(n) ((n) << 2) #define WLAN_SET_MGMT_CAP_INFO_CFPOLLREQ(n) ((n) << 3) #define WLAN_SET_MGMT_CAP_INFO_PRIVACY(n) ((n) << 4) /* p80211b additions */ #define WLAN_SET_MGMT_CAP_INFO_SHORT(n) ((n) << 5) #define WLAN_SET_MGMT_CAP_INFO_PBCC(n) ((n) << 6) #define WLAN_SET_MGMT_CAP_INFO_AGILITY(n) ((n) << 7) #endif /* _P80211MGMT_H */ |