ieee802_11_common.h revision 281806 
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 *mesh_config;
32	const u8 *mesh_id;
33	const u8 *peer_mgmt;
34	const u8 *vht_capabilities;
35	const u8 *vht_operation;
36	const u8 *vht_opmode_notif;
37	const u8 *vendor_ht_cap;
38	const u8 *vendor_vht;
39	const u8 *p2p;
40	const u8 *wfd;
41	const u8 *link_id;
42	const u8 *interworking;
43	const u8 *qos_map_set;
44	const u8 *hs20;
45	const u8 *ext_capab;
46	const u8 *bss_max_idle_period;
47	const u8 *ssid_list;
48	const u8 *osen;
49	const u8 *ampe;
50	const u8 *mic;
51
52	u8 ssid_len;
53	u8 supp_rates_len;
54	u8 ds_params_len;
55	u8 challenge_len;
56	u8 erp_info_len;
57	u8 ext_supp_rates_len;
58	u8 wpa_ie_len;
59	u8 rsn_ie_len;
60	u8 wmm_len; /* 7 = WMM Information; 24 = WMM Parameter */
61	u8 wmm_tspec_len;
62	u8 wps_ie_len;
63	u8 supp_channels_len;
64	u8 mdie_len;
65	u8 ftie_len;
66	u8 timeout_int_len;
67	u8 ht_capabilities_len;
68	u8 ht_operation_len;
69	u8 mesh_config_len;
70	u8 mesh_id_len;
71	u8 peer_mgmt_len;
72	u8 vht_capabilities_len;
73	u8 vht_operation_len;
74	u8 vendor_ht_cap_len;
75	u8 vendor_vht_len;
76	u8 p2p_len;
77	u8 wfd_len;
78	u8 interworking_len;
79	u8 qos_map_set_len;
80	u8 hs20_len;
81	u8 ext_capab_len;
82	u8 ssid_list_len;
83	u8 osen_len;
84	u8 ampe_len;
85	u8 mic_len;
86};
87
88typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
89
90ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
91				struct ieee802_11_elems *elems,
92				int show_errors);
93int ieee802_11_ie_count(const u8 *ies, size_t ies_len);
94struct wpabuf * ieee802_11_vendor_ie_concat(const u8 *ies, size_t ies_len,
95					    u32 oui_type);
96struct ieee80211_hdr;
97const u8 * get_hdr_bssid(const struct ieee80211_hdr *hdr, size_t len);
98
99struct hostapd_wmm_ac_params {
100	int cwmin;
101	int cwmax;
102	int aifs;
103	int txop_limit; /* in units of 32us */
104	int admission_control_mandatory;
105};
106
107int hostapd_config_wmm_ac(struct hostapd_wmm_ac_params wmm_ac_params[],
108			  const char *name, const char *val);
109enum hostapd_hw_mode ieee80211_freq_to_chan(int freq, u8 *channel);
110int ieee80211_chan_to_freq(const char *country, u8 op_class, u8 chan);
111int ieee80211_is_dfs(int freq);
112
113int supp_rates_11b_only(struct ieee802_11_elems *elems);
114
115const char * fc2str(u16 fc);
116#endif /* IEEE802_11_COMMON_H */
117