1 #ifndef __NET_WIRELESS_REG_H 1
2 #define __NET_WIRELESS_REG_H
3
4 #include <net/cfg80211.h>
5
6 /*
7 * Copyright 2008-2011 Luis R. Rodriguez <mcg
8 * Copyright (C) 2019, 2023 Intel Corporation
9 *
10 * Permission to use, copy, modify, and/or dis
11 * purpose with or without fee is hereby grant
12 * copyright notice and this permission notice
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AU
15 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL
16 * MERCHANTABILITY AND FITNESS. IN NO EVENT SH
17 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUEN
18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA
19 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TOR
20 * OR IN CONNECTION WITH THE USE OR PERFORMANC
21 */
22
23 enum ieee80211_regd_source {
24 REGD_SOURCE_INTERNAL_DB,
25 REGD_SOURCE_CRDA,
26 REGD_SOURCE_CACHED,
27 };
28
29 extern const struct ieee80211_regdomain __rcu
30
31 bool reg_is_valid_request(const char *alpha2);
32 bool is_world_regdom(const char *alpha2);
33 bool reg_supported_dfs_region(enum nl80211_dfs
34 enum nl80211_dfs_regions reg_get_dfs_region(st
35
36 int regulatory_hint_user(const char *alpha2,
37 enum nl80211_user_reg
38
39 /**
40 * regulatory_hint_indoor - hint operation in
41 * @is_indoor: if true indicates that user spa
42 * device is operating in an indoor environmen
43 * @portid: the netlink port ID on which the h
44 */
45 void regulatory_hint_indoor(bool is_indoor, u3
46
47 /**
48 * regulatory_netlink_notify - notify on relea
49 * @portid: the netlink socket port ID
50 */
51 void regulatory_netlink_notify(u32 portid);
52
53 void wiphy_regulatory_register(struct wiphy *w
54 void wiphy_regulatory_deregister(struct wiphy
55
56 int __init regulatory_init(void);
57 void regulatory_exit(void);
58
59 int set_regdom(const struct ieee80211_regdomai
60 enum ieee80211_regd_source regd
61
62 unsigned int reg_get_max_bandwidth(const struc
63 const struc
64
65 bool reg_last_request_cell_base(void);
66
67 /**
68 * regulatory_hint_found_beacon - hints a beac
69 * @wiphy: the wireless device where the beaco
70 * @beacon_chan: the channel on which the beac
71 * @gfp: context flags
72 *
73 * This informs the wireless core that a beaco
74 * the channel provided. This allows the wirel
75 * guesses on regulatory to help with world ro
76 * world roaming -- when we do not know our cu
77 * only useful on channels 12, 13 and 14 on th
78 * 1-11 are already enabled by the world regul
79 * non-radar 5 GHz channels.
80 *
81 * Drivers do not need to call this, cfg80211
82 * on a newly found BSS. If you cannot make us
83 * set the wiphy->disable_beacon_hints to true
84 */
85 void regulatory_hint_found_beacon(struct wiphy
86 struct ieee8
87 gfp_t gfp);
88
89 /**
90 * regulatory_hint_country_ie - hints a countr
91 * @wiphy: the wireless device giving the hint
92 * conflicts)
93 * @band: the band on which the country IE was
94 * the band we'll process the country IE
95 * @country_ie: pointer to the country IE
96 * @country_ie_len: length of the country IE
97 *
98 * We will intersect the rd with the what CRDA
99 * for the alpha2 this country IE belongs to,
100 * sending us incorrect or outdated informatio
101 *
102 * The AP is expected to provide Country IE ch
103 * band it is on. It is technically possible f
104 * country IE triplets even for channels outsi
105 * in but for that they would have to use the
106 * in combination with a triplet but this beha
107 * not observed. For this reason if a triplet
108 * information for a band the BSS is not prese
109 */
110 void regulatory_hint_country_ie(struct wiphy *
111 enum nl80211_band ban
112 const u8 *country_ie,
113 u8 country_ie_len);
114
115 /**
116 * regulatory_hint_disconnect - informs all de
117 *
118 * Regulotory rules can be enhanced further up
119 * connection to an AP. These rules become sta
120 * and go to another country, whether or not w
121 * If we suspend, go to another country and re
122 * get disconnected shortly after resuming and
123 * This routine is a helper to restore regulat
124 * prior to our first connect attempt. This in
125 * beacon regulatory hints. The ieee80211_regd
126 * be respected but if a user had set the regu
127 * precedence.
128 *
129 * Must be called from process context.
130 */
131 void regulatory_hint_disconnect(void);
132
133 /**
134 * cfg80211_get_unii - get the U-NII band for
135 * @freq: the frequency for which we want to g
136 *
137 * Get a value specifying the U-NII band frequ
138 * U-NII bands are defined by the FCC in C.F.R
139 *
140 * Return: -EINVAL if freq is invalid, 0 for U
141 * 2 for UNII-2B, 3 for UNII-2C and 4 for UNII
142 */
143 int cfg80211_get_unii(int freq);
144
145 /**
146 * regulatory_indoor_allowed - is indoor opera
147 * Return: %true if indoor operation is allowe
148 */
149 bool regulatory_indoor_allowed(void);
150
151 /*
152 * Grace period to timeout pre-CAC results on
153 * value is used for Non-ETSI domain.
154 * TODO: May be make this timeout available th
155 */
156 #define REG_PRE_CAC_EXPIRY_GRACE_MS 2000
157
158 /**
159 * regulatory_propagate_dfs_state - Propagate
160 * @wiphy: wiphy on which radar is detected an
161 * to other available wiphys having the s
162 * @chandef: Channel definition of radar detec
163 * @dfs_state: DFS channel state to be set
164 * @event: Type of radar event which triggered
165 *
166 * This function should be called with rtnl lo
167 */
168 void regulatory_propagate_dfs_state(struct wip
169 struct cfg
170 enum nl802
171 enum nl802
172
173 /**
174 * reg_dfs_domain_same - Checks if both wiphy
175 * @wiphy1: wiphy it's dfs_region to be checke
176 * @wiphy2: wiphy it's dfs_region to be checke
177 * Return: %true if both wiphys have the same
178 */
179 bool reg_dfs_domain_same(struct wiphy *wiphy1,
180
181 /**
182 * reg_reload_regdb - reload the regulatory.db
183 * Return: 0 for success, an error code otherw
184 */
185 int reg_reload_regdb(void);
186
187 /**
188 * reg_check_channels - schedule regulatory en
189 */
190 void reg_check_channels(void);
191
192 extern const u8 shipped_regdb_certs[];
193 extern unsigned int shipped_regdb_certs_len;
194 extern const u8 extra_regdb_certs[];
195 extern unsigned int extra_regdb_certs_len;
196
197 #endif /* __NET_WIRELESS_REG_H */
198
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.