ieee802_11_common.h revision 1f69aa52ea2e0a73ac502565df8c666ee49cab6a 
1/*
2 * IEEE 802.11 Common routines
3 * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#ifndef IEEE802_11_COMMON_H
16#define IEEE802_11_COMMON_H
17
18/* Parsed Information Elements */
19struct ieee802_11_elems {
20	const u8 *ssid;
21	const u8 *supp_rates;
22	const u8 *fh_params;
23	const u8 *ds_params;
24	const u8 *cf_params;
25	const u8 *tim;
26	const u8 *ibss_params;
27	const u8 *challenge;
28	const u8 *erp_info;
29	const u8 *ext_supp_rates;
30	const u8 *wpa_ie;
31	const u8 *rsn_ie;
32	const u8 *wmm; /* WMM Information or Parameter Element */
33	const u8 *wmm_tspec;
34	const u8 *wps_ie;
35	const u8 *power_cap;
36	const u8 *supp_channels;
37	const u8 *mdie;
38	const u8 *ftie;
39	const u8 *timeout_int;
40	const u8 *ht_capabilities;
41	const u8 *ht_operation;
42	const u8 *vendor_ht_cap;
43	const u8 *p2p;
44	const u8 *link_id;
45	const u8 *interworking;
46
47	u8 ssid_len;
48	u8 supp_rates_len;
49	u8 fh_params_len;
50	u8 ds_params_len;
51	u8 cf_params_len;
52	u8 tim_len;
53	u8 ibss_params_len;
54	u8 challenge_len;
55	u8 erp_info_len;
56	u8 ext_supp_rates_len;
57	u8 wpa_ie_len;
58	u8 rsn_ie_len;
59	u8 wmm_len; /* 7 = WMM Information; 24 = WMM Parameter */
60	u8 wmm_tspec_len;
61	u8 wps_ie_len;
62	u8 power_cap_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 vendor_ht_cap_len;
70	u8 p2p_len;
71	u8 interworking_len;
72};
73
74typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
75
76ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
77				struct ieee802_11_elems *elems,
78				int show_errors);
79int ieee802_11_ie_count(const u8 *ies, size_t ies_len);
80struct wpabuf * ieee802_11_vendor_ie_concat(const u8 *ies, size_t ies_len,
81					    u32 oui_type);
82struct ieee80211_hdr;
83const u8 * get_hdr_bssid(const struct ieee80211_hdr *hdr, size_t len);
84
85#endif /* IEEE802_11_COMMON_H */
86