src/common/ieee802_11_common.h

   1 /*
   2  * IEEE 802.11 Common routines
   3  * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef IEEE802_11_COMMON_H
  16 #define IEEE802_11_COMMON_H
  17
  18 /* Parsed Information Elements */
  19 struct ieee802_11_elems {
  20         const u8 *ssid;
  21         const u8 *supp_rates;
  22         const u8 *fh_params;
  23         const u8 *ds_params;
  24         const u8 *cf_params;
  25         const u8 *tim;
  26         const u8 *ibss_params;
  27         const u8 *challenge;
  28         const u8 *erp_info;
  29         const u8 *ext_supp_rates;
  30         const u8 *wpa_ie;
  31         const u8 *rsn_ie;
  32         const u8 *wmm; /* WMM Information or Parameter Element */
  33         const u8 *wmm_tspec;
  34         const u8 *wps_ie;
  35         const u8 *power_cap;
  36         const u8 *supp_channels;
  37         const u8 *mdie;
  38         const u8 *ftie;
  39         const u8 *timeout_int;
  40         const u8 *ht_capabilities;
  41         const u8 *ht_operation;
  42         const u8 *vendor_ht_cap;
  43
  44         u8 ssid_len;
  45         u8 supp_rates_len;
  46         u8 fh_params_len;
  47         u8 ds_params_len;
  48         u8 cf_params_len;
  49         u8 tim_len;
  50         u8 ibss_params_len;
  51         u8 challenge_len;
  52         u8 erp_info_len;
  53         u8 ext_supp_rates_len;
  54         u8 wpa_ie_len;
  55         u8 rsn_ie_len;
  56         u8 wmm_len; /* 7 = WMM Information; 24 = WMM Parameter */
  57         u8 wmm_tspec_len;
  58         u8 wps_ie_len;
  59         u8 power_cap_len;
  60         u8 supp_channels_len;
  61         u8 mdie_len;
  62         u8 ftie_len;
  63         u8 timeout_int_len;
  64         u8 ht_capabilities_len;
  65         u8 ht_operation_len;
  66         u8 vendor_ht_cap_len;
  67 };
  68
  69 typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
  70
  71 ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
  72                                 struct ieee802_11_elems *elems,
  73                                 int show_errors);
  74 int ieee802_11_ie_count(const u8 *ies, size_t ies_len);
  75 struct wpabuf * ieee802_11_vendor_ie_concat(const u8 *ies, size_t ies_len,
  76                                             u32 oui_type);
  77
  78 #endif /* IEEE802_11_COMMON_H */