| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * IEEE 802.11 Common routines |
| 3 | * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi> |
| 4 | * |
| 5 | * This software may be distributed under the terms of the BSD license. |
| 6 | * See README for more details. |
| 7 | */ |
| 8 | |
| 9 | #ifndef IEEE802_11_COMMON_H |
| 10 | #define IEEE802_11_COMMON_H |
| 11 | |
| 12 | #include "defs.h" |
| 13 | |
| 14 | #define MAX_NOF_MB_IES_SUPPORTED 5 |
| 15 | |
| 16 | struct mb_ies_info { |
| 17 | struct { |
| 18 | const u8 *ie; |
| 19 | u8 ie_len; |
| 20 | } ies[MAX_NOF_MB_IES_SUPPORTED]; |
| 21 | u8 nof_ies; |
| 22 | }; |
| 23 | |
| 24 | /* Parsed Information Elements */ |
| 25 | struct ieee802_11_elems { |
| 26 | const u8 *ssid; |
| 27 | const u8 *supp_rates; |
| 28 | const u8 *ds_params; |
| 29 | const u8 *challenge; |
| 30 | const u8 *erp_info; |
| 31 | const u8 *ext_supp_rates; |
| 32 | const u8 *wpa_ie; |
| 33 | const u8 *rsn_ie; |
| 34 | const u8 *wmm; /* WMM Information or Parameter Element */ |
| 35 | const u8 *wmm_tspec; |
| 36 | const u8 *wps_ie; |
| 37 | const u8 *supp_channels; |
| 38 | const u8 *mdie; |
| 39 | const u8 *ftie; |
| 40 | const u8 *timeout_int; |
| 41 | const u8 *ht_capabilities; |
| 42 | const u8 *ht_operation; |
| 43 | const u8 *mesh_config; |
| 44 | const u8 *mesh_id; |
| 45 | const u8 *peer_mgmt; |
| 46 | const u8 *vht_capabilities; |
| 47 | const u8 *vht_operation; |
| 48 | const u8 *vht_opmode_notif; |
| 49 | const u8 *vendor_ht_cap; |
| 50 | const u8 *vendor_vht; |
| 51 | const u8 *p2p; |
| 52 | const u8 *wfd; |
| 53 | const u8 *link_id; |
| 54 | const u8 *interworking; |
| 55 | const u8 *qos_map_set; |
| 56 | const u8 *hs20; |
| 57 | const u8 *ext_capab; |
| 58 | const u8 *bss_max_idle_period; |
| 59 | const u8 *ssid_list; |
| 60 | const u8 *osen; |
| 61 | const u8 *mbo; |
| 62 | const u8 *ampe; |
| 63 | const u8 *mic; |
| 64 | const u8 *pref_freq_list; |
| 65 | const u8 *supp_op_classes; |
| 66 | const u8 *rrm_enabled; |
| 67 | |
| 68 | u8 ssid_len; |
| 69 | u8 supp_rates_len; |
| 70 | u8 challenge_len; |
| 71 | u8 ext_supp_rates_len; |
| 72 | u8 wpa_ie_len; |
| 73 | u8 rsn_ie_len; |
| 74 | u8 wmm_len; /* 7 = WMM Information; 24 = WMM Parameter */ |
| 75 | u8 wmm_tspec_len; |
| 76 | u8 wps_ie_len; |
| 77 | u8 supp_channels_len; |
| 78 | u8 mdie_len; |
| 79 | u8 ftie_len; |
| 80 | u8 mesh_config_len; |
| 81 | u8 mesh_id_len; |
| 82 | u8 peer_mgmt_len; |
| 83 | u8 vendor_ht_cap_len; |
| 84 | u8 vendor_vht_len; |
| 85 | u8 p2p_len; |
| 86 | u8 wfd_len; |
| 87 | u8 interworking_len; |
| 88 | u8 qos_map_set_len; |
| 89 | u8 hs20_len; |
| 90 | u8 ext_capab_len; |
| 91 | u8 ssid_list_len; |
| 92 | u8 osen_len; |
| 93 | u8 mbo_len; |
| 94 | u8 ampe_len; |
| 95 | u8 mic_len; |
| 96 | u8 pref_freq_list_len; |
| 97 | u8 supp_op_classes_len; |
| 98 | u8 rrm_enabled_len; |
| 99 | |
| 100 | struct mb_ies_info mb_ies; |
| 101 | }; |
| 102 | |
| 103 | typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes; |
| 104 | |
| 105 | ParseRes ieee802_11_parse_elems(const u8 *start, size_t len, |
| 106 | struct ieee802_11_elems *elems, |
| 107 | int show_errors); |
| 108 | int ieee802_11_ie_count(const u8 *ies, size_t ies_len); |
| 109 | struct wpabuf * ieee802_11_vendor_ie_concat(const u8 *ies, size_t ies_len, |
| 110 | u32 oui_type); |
| 111 | struct ieee80211_hdr; |
| 112 | const u8 * get_hdr_bssid(const struct ieee80211_hdr *hdr, size_t len); |
| 113 | |
| 114 | struct hostapd_wmm_ac_params { |
| 115 | int cwmin; |
| 116 | int cwmax; |
| 117 | int aifs; |
| 118 | int txop_limit; /* in units of 32us */ |
| 119 | int admission_control_mandatory; |
| 120 | }; |
| 121 | |
| 122 | int hostapd_config_wmm_ac(struct hostapd_wmm_ac_params wmm_ac_params[], |
| 123 | const char *name, const char *val); |
| 124 | enum hostapd_hw_mode ieee80211_freq_to_chan(int freq, u8 *channel); |
| 125 | int ieee80211_chan_to_freq(const char *country, u8 op_class, u8 chan); |
| 126 | enum hostapd_hw_mode ieee80211_freq_to_channel_ext(unsigned int freq, |
| 127 | int sec_channel, int vht, |
| 128 | u8 *op_class, u8 *channel); |
| 129 | int ieee80211_is_dfs(int freq); |
| 130 | enum phy_type ieee80211_get_phy_type(int freq, int ht, int vht); |
| 131 | |
| 132 | int supp_rates_11b_only(struct ieee802_11_elems *elems); |
| 133 | int mb_ies_info_by_ies(struct mb_ies_info *info, const u8 *ies_buf, |
| 134 | size_t ies_len); |
| 135 | struct wpabuf * mb_ies_by_info(struct mb_ies_info *info); |
| 136 | |
| 137 | const char * fc2str(u16 fc); |
| 138 | |
| 139 | struct oper_class_map { |
| 140 | enum hostapd_hw_mode mode; |
| 141 | u8 op_class; |
| 142 | u8 min_chan; |
| 143 | u8 max_chan; |
| 144 | u8 inc; |
| 145 | enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160, BW160, BW80P80 } bw; |
| 146 | enum { P2P_SUPP, NO_P2P_SUPP } p2p; |
| 147 | }; |
| 148 | |
| 149 | extern const struct oper_class_map global_op_class[]; |
| 150 | extern size_t global_op_class_size; |
| 151 | |
| 152 | const u8 * get_ie(const u8 *ies, size_t len, u8 eid); |
| 153 | |
| 154 | size_t mbo_add_ie(u8 *buf, size_t len, const u8 *attr, size_t attr_len); |
| 155 | |
| 156 | #endif /* IEEE802_11_COMMON_H */ |