ieee802_11_common.h revision 2271d3fdd5982d0e5e81cf9999a861bba933eacb 
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/* Parsed Information Elements */
13struct ieee802_11_elems {
14	const u8 *ssid;
15	const u8 *supp_rates;
16	const u8 *ds_params;
17	const u8 *challenge;
18	const u8 *erp_info;
19	const u8 *ext_supp_rates;
20	const u8 *wpa_ie;
21	const u8 *rsn_ie;
22	const u8 *wmm; /* WMM Information or Parameter Element */
23	const u8 *wmm_tspec;
24	const u8 *wps_ie;
25	const u8 *supp_channels;
26	const u8 *mdie;
27	const u8 *ftie;
28	const u8 *timeout_int;
29	const u8 *ht_capabilities;
30	const u8 *ht_operation;
31	const u8 *vht_capabilities;
32	const u8 *vht_operation;
33	const u8 *vht_opmode_notif;
34	const u8 *vendor_ht_cap;
35	const u8 *p2p;
36	const u8 *wfd;
37	const u8 *link_id;
38	const u8 *interworking;
39	const u8 *qos_map_set;
40	const u8 *hs20;
41	const u8 *ext_capab;
42	const u8 *bss_max_idle_period;
43	const u8 *ssid_list;
44	const u8 *osen;
45
46	u8 ssid_len;
47	u8 supp_rates_len;
48	u8 ds_params_len;
49	u8 challenge_len;
50	u8 erp_info_len;
51	u8 ext_supp_rates_len;
52	u8 wpa_ie_len;
53	u8 rsn_ie_len;
54	u8 wmm_len; /* 7 = WMM Information; 24 = WMM Parameter */
55	u8 wmm_tspec_len;
56	u8 wps_ie_len;
57	u8 supp_channels_len;
58	u8 mdie_len;
59	u8 ftie_len;
60	u8 timeout_int_len;
61	u8 ht_capabilities_len;
62	u8 ht_operation_len;
63	u8 vht_capabilities_len;
64	u8 vht_operation_len;
65	u8 vendor_ht_cap_len;
66	u8 p2p_len;
67	u8 wfd_len;
68	u8 interworking_len;
69	u8 qos_map_set_len;
70	u8 hs20_len;
71	u8 ext_capab_len;
72	u8 ssid_list_len;
73	u8 osen_len;
74};
75
76typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
77
78ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
79				struct ieee802_11_elems *elems,
80				int show_errors);
81int ieee802_11_ie_count(const u8 *ies, size_t ies_len);
82struct wpabuf * ieee802_11_vendor_ie_concat(const u8 *ies, size_t ies_len,
83					    u32 oui_type);
84struct ieee80211_hdr;
85const u8 * get_hdr_bssid(const struct ieee80211_hdr *hdr, size_t len);
86
87struct hostapd_wmm_ac_params {
88	int cwmin;
89	int cwmax;
90	int aifs;
91	int txop_limit; /* in units of 32us */
92	int admission_control_mandatory;
93};
94
95int hostapd_config_wmm_ac(struct hostapd_wmm_ac_params wmm_ac_params[],
96			  const char *name, const char *val);
97enum hostapd_hw_mode ieee80211_freq_to_chan(int freq, u8 *channel);
98
99int supp_rates_11b_only(struct ieee802_11_elems *elems);
100
101const char * fc2str(u16 fc);
102#endif /* IEEE802_11_COMMON_H */
103