hostap/hostapd/wme.h

146 lines
3.2 KiB
C

/*
* hostapd / WMM (Wi-Fi Multimedia)
* Copyright 2002-2003, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#ifndef WME_H
#define WME_H
#ifdef __linux__
#include <endian.h>
#endif /* __linux__ */
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
#include <sys/types.h>
#include <sys/endian.h>
#endif /* defined(__FreeBSD__) || defined(__NetBSD__) ||
* defined(__DragonFly__) */
#define WME_OUI_TYPE 2
#define WME_OUI_SUBTYPE_INFORMATION_ELEMENT 0
#define WME_OUI_SUBTYPE_PARAMETER_ELEMENT 1
#define WME_OUI_SUBTYPE_TSPEC_ELEMENT 2
#define WME_VERSION 1
#define WME_ACTION_CODE_SETUP_REQUEST 0
#define WME_ACTION_CODE_SETUP_RESPONSE 1
#define WME_ACTION_CODE_TEARDOWN 2
#define WME_SETUP_RESPONSE_STATUS_ADMISSION_ACCEPTED 0
#define WME_SETUP_RESPONSE_STATUS_INVALID_PARAMETERS 1
#define WME_SETUP_RESPONSE_STATUS_REFUSED 3
#define WME_TSPEC_DIRECTION_UPLINK 0
#define WME_TSPEC_DIRECTION_DOWNLINK 1
#define WME_TSPEC_DIRECTION_BI_DIRECTIONAL 3
extern inline u16 tsinfo(int tag1d, int contention_based, int direction)
{
return (tag1d << 11) | (contention_based << 7) | (direction << 5) |
(tag1d << 1);
}
struct wme_information_element {
/* required fields for WME version 1 */
u8 oui[3];
u8 oui_type;
u8 oui_subtype;
u8 version;
u8 acInfo;
} __attribute__ ((packed));
struct wme_ac_parameter {
#if __BYTE_ORDER == __LITTLE_ENDIAN
/* byte 1 */
u8 aifsn:4,
acm:1,
aci:2,
reserved:1;
/* byte 2 */
u8 eCWmin:4,
eCWmax:4;
#elif __BYTE_ORDER == __BIG_ENDIAN
/* byte 1 */
u8 reserved:1,
aci:2,
acm:1,
aifsn:4;
/* byte 2 */
u8 eCWmax:4,
eCWmin:4;
#else
#error "Please fix <endian.h>"
#endif
/* bytes 3 & 4 */
le16 txopLimit;
} __attribute__ ((packed));
struct wme_parameter_element {
/* required fields for WME version 1 */
u8 oui[3];
u8 oui_type;
u8 oui_subtype;
u8 version;
u8 acInfo;
u8 reserved;
struct wme_ac_parameter ac[4];
} __attribute__ ((packed));
struct wme_tspec_info_element {
u8 eid;
u8 length;
u8 oui[3];
u8 oui_type;
u8 oui_subtype;
u8 version;
u16 ts_info;
u16 nominal_msdu_size;
u16 maximum_msdu_size;
u32 minimum_service_interval;
u32 maximum_service_interval;
u32 inactivity_interval;
u32 start_time;
u32 minimum_data_rate;
u32 mean_data_rate;
u32 maximum_burst_size;
u32 minimum_phy_rate;
u32 peak_data_rate;
u32 delay_bound;
u16 surplus_bandwidth_allowance;
u16 medium_time;
} __attribute__ ((packed));
/* Access Categories */
enum {
WME_AC_BK = 1,
WME_AC_BE = 0,
WME_AC_VI = 2,
WME_AC_VO = 3
};
struct ieee80211_mgmt;
u8 * hostapd_eid_wme(struct hostapd_data *hapd, u8 *eid);
int hostapd_eid_wme_valid(struct hostapd_data *hapd, u8 *eid, size_t len);
int hostapd_wme_sta_config(struct hostapd_data *hapd, struct sta_info *sta);
void hostapd_wme_action(struct hostapd_data *hapd, struct ieee80211_mgmt *mgmt,
size_t len);
#endif /* WME_H */