contrib/hostapd-0.5.8/wme.h

   1 /*
   2  * hostapd / WMM (Wi-Fi Multimedia)
   3  * Copyright 2002-2003, Instant802 Networks, Inc.
   4  * Copyright 2005-2006, Devicescape Software, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  */
  15
  16 #ifndef WME_H
  17 #define WME_H
  18
  19 #ifdef __linux__
  20 #include <endian.h>
  21 #endif /* __linux__ */
  22
  23 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
  24 #include <sys/types.h>
  25 #include <sys/endian.h>
  26 #endif /* defined(__FreeBSD__) || defined(__NetBSD__) ||
  27         * defined(__DragonFly__) */
  28
  29 #define WME_OUI_TYPE 2
  30 #define WME_OUI_SUBTYPE_INFORMATION_ELEMENT 0
  31 #define WME_OUI_SUBTYPE_PARAMETER_ELEMENT 1
  32 #define WME_OUI_SUBTYPE_TSPEC_ELEMENT 2
  33 #define WME_VERSION 1
  34
  35 #define WME_ACTION_CATEGORY 17
  36 #define WME_ACTION_CODE_SETUP_REQUEST 0
  37 #define WME_ACTION_CODE_SETUP_RESPONSE 1
  38 #define WME_ACTION_CODE_TEARDOWN 2
  39
  40 #define WME_SETUP_RESPONSE_STATUS_ADMISSION_ACCEPTED 0
  41 #define WME_SETUP_RESPONSE_STATUS_INVALID_PARAMETERS 1
  42 #define WME_SETUP_RESPONSE_STATUS_REFUSED 3
  43
  44 #define WME_TSPEC_DIRECTION_UPLINK 0
  45 #define WME_TSPEC_DIRECTION_DOWNLINK 1
  46 #define WME_TSPEC_DIRECTION_BI_DIRECTIONAL 3
  47
  48 extern inline u16 tsinfo(int tag1d, int contention_based, int direction)
  49 {
  50         return (tag1d << 11) | (contention_based << 7) | (direction << 5) |
  51           (tag1d << 1);
  52 }
  53
  54
  55 struct wme_information_element {
  56         /* required fields for WME version 1 */
  57         u8 oui[3];
  58         u8 oui_type;
  59         u8 oui_subtype;
  60         u8 version;
  61         u8 acInfo;
  62
  63 } __attribute__ ((packed));
  64
  65 struct wme_ac_parameter {
  66 #if __BYTE_ORDER == __LITTLE_ENDIAN
  67         /* byte 1 */
  68         u8      aifsn:4,
  69                 acm:1,
  70                 aci:2,
  71                 reserved:1;
  72
  73         /* byte 2 */
  74         u8      eCWmin:4,
  75                 eCWmax:4;
  76 #elif __BYTE_ORDER == __BIG_ENDIAN
  77         /* byte 1 */
  78         u8      reserved:1,
  79                 aci:2,
  80                 acm:1,
  81                 aifsn:4;
  82
  83         /* byte 2 */
  84         u8      eCWmax:4,
  85                 eCWmin:4;
  86 #else
  87 #error  "Please fix <endian.h>"
  88 #endif
  89
  90         /* bytes 3 & 4 */
  91         u16 txopLimit;
  92 } __attribute__ ((packed));
  93
  94 struct wme_parameter_element {
  95         /* required fields for WME version 1 */
  96         u8 oui[3];
  97         u8 oui_type;
  98         u8 oui_subtype;
  99         u8 version;
 100         u8 acInfo;
 101         u8 reserved;
 102         struct wme_ac_parameter ac[4];
 103
 104 } __attribute__ ((packed));
 105
 106 struct wme_tspec_info_element {
 107         u8 eid;
 108         u8 length;
 109         u8 oui[3];
 110         u8 oui_type;
 111         u8 oui_subtype;
 112         u8 version;
 113         u16 ts_info;
 114         u16 nominal_msdu_size;
 115         u16 maximum_msdu_size;
 116         u32 minimum_service_interval;
 117         u32 maximum_service_interval;
 118         u32 inactivity_interval;
 119         u32 start_time;
 120         u32 minimum_data_rate;
 121         u32 mean_data_rate;
 122         u32 maximum_burst_size;
 123         u32 minimum_phy_rate;
 124         u32 peak_data_rate;
 125         u32 delay_bound;
 126         u16 surplus_bandwidth_allowance;
 127         u16 medium_time;
 128 } __attribute__ ((packed));
 129
 130
 131 /* Access Categories */
 132 enum {
 133         WME_AC_BK = 1,
 134         WME_AC_BE = 0,
 135         WME_AC_VI = 2,
 136         WME_AC_VO = 3
 137 };
 138
 139
 140 u8 * hostapd_eid_wme(struct hostapd_data *hapd, u8 *eid);
 141 int hostapd_eid_wme_valid(struct hostapd_data *hapd, u8 *eid, size_t len);
 142 int hostapd_wme_sta_config(struct hostapd_data *hapd, struct sta_info *sta);
 143 void hostapd_wme_action(struct hostapd_data *hapd, struct ieee80211_mgmt *mgmt,
 144                         size_t len);
 145
 146 #endif /* WME_H */