text: /*
   * IEEE 802.11 Common routines
   * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
   * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH.
   * Copyright(c) 2011 - 2014 Intel Corporation. All rights reserved.
   *
   * This software may be distributed under the terms of the BSD license.
   * See README for more details.
   */
  
  #ifndef IEEE802_11_COMMON_H
  #define IEEE802_11_COMMON_H
  
  /* Parsed Information Elements */
  struct ieee802_11_elems {
  	const u8 *ssid;
  	const u8 *supp_rates;
  	const u8 *ds_params;
  	const u8 *challenge;
  	const u8 *erp_info;
  	const u8 *ext_supp_rates;
  	const u8 *wpa_ie;
  	const u8 *rsn_ie;
  	const u8 *wmm; /* WMM Information or Parameter Element */
  	const u8 *wmm_tspec;
  	const u8 *wps_ie;
  	const u8 *supp_channels;
  	const u8 *mdie;
  	const u8 *ftie;
  	const u8 *timeout_int;
  	const u8 *ht_capabilities;
  	const u8 *ht_operation;
  	const u8 *mesh_config;
  	const u8 *mesh_id;
  	const u8 *peer_mgmt;
  	const u8 *vht_capabilities;
  	const u8 *vht_operation;
  	const u8 *vht_opmode_notif;
  	const u8 *vendor_ht_cap;
  	const u8 *vendor_vht;
  	const u8 *p2p;
  	const u8 *wfd;
  	const u8 *link_id;
  	const u8 *interworking;
  	const u8 *qos_map_set;
  	const u8 *hs20;
  	const u8 *ext_capab;
  	const u8 *bss_max_idle_period;
  	const u8 *ssid_list;
  	const u8 *osen;
  	const u8 *ampe;
  	const u8 *mic;
  
  	u8 ssid_len;
  	u8 supp_rates_len;
  	u8 challenge_len;
  	u8 ext_supp_rates_len;
  	u8 wpa_ie_len;
  	u8 rsn_ie_len;
  	u8 wmm_len; /* 7 = WMM Information; 24 = WMM Parameter */
  	u8 wmm_tspec_len;
  	u8 wps_ie_len;
  	u8 supp_channels_len;
  	u8 mdie_len;
  	u8 ftie_len;
  	u8 mesh_config_len;
  	u8 mesh_id_len;
  	u8 peer_mgmt_len;
  	u8 vendor_ht_cap_len;
  	u8 vendor_vht_len;
  	u8 p2p_len;
  	u8 wfd_len;
  	u8 interworking_len;
  	u8 qos_map_set_len;
  	u8 hs20_len;
  	u8 ext_capab_len;
  	u8 ssid_list_len;
  	u8 osen_len;
  	u8 ampe_len;
  	u8 mic_len;
  };
  
  typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
  
  ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
  				struct ieee802_11_elems *elems,
  				int show_errors);
  int ieee802_11_ie_count(const u8 *ies, size_t ies_len);
  struct wpabuf * ieee802_11_vendor_ie_concat(const u8 *ies, size_t ies_len,
  					    u32 oui_type);
  struct ieee80211_hdr;
  const u8 * get_hdr_bssid(const struct ieee80211_hdr *hdr, size_t len);
  
  struct hostapd_wmm_ac_params {
  	int cwmin;
  	int cwmax;
  	int aifs;
  	int txop_limit; /* in units of 32us */
  	int admission_control_mandatory;
  };
  
  int hostapd_config_wmm_ac(struct hostapd_wmm_ac_params wmm_ac_params[],
  			  const char *name, const char *val);
  enum hostapd_hw_mode ieee80211_freq_to_chan(int freq, u8 *channel);
  int ieee80211_chan_to_freq(const char *country, u8 op_class, u8 chan);
  int ieee80211_is_dfs(int freq);
  enum hostapd_hw_mode ieee80211_freq_to_channel_ext(unsigned int freq,
  						   int sec_channel, int vht,
  						   u8 *op_class, u8 *channel);
  
  int supp_rates_11b_only(struct ieee802_11_elems *elems);
  
  const char * fc2str(u16 fc);
  #endif /* IEEE802_11_COMMON_H */
  