1 #ifndef __NET_WIRELESS_REG_H 1 #ifndef __NET_WIRELESS_REG_H
2 #define __NET_WIRELESS_REG_H 2 #define __NET_WIRELESS_REG_H
3 3
4 #include <net/cfg80211.h> 4 #include <net/cfg80211.h>
5 5
6 /* 6 /*
7 * Copyright 2008-2011 Luis R. Rodriguez <mcg 7 * Copyright 2008-2011 Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
8 * Copyright (C) 2019, 2023 Intel Corporation !! 8 * Copyright (C) 2019 Intel Corporation
9 * 9 *
10 * Permission to use, copy, modify, and/or dis 10 * Permission to use, copy, modify, and/or distribute this software for any
11 * purpose with or without fee is hereby grant 11 * purpose with or without fee is hereby granted, provided that the above
12 * copyright notice and this permission notice 12 * copyright notice and this permission notice appear in all copies.
13 * 13 *
14 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AU 14 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
15 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL 15 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
16 * MERCHANTABILITY AND FITNESS. IN NO EVENT SH 16 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
17 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUEN 17 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA 18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TOR 19 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 * OR IN CONNECTION WITH THE USE OR PERFORMANC 20 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 */ 21 */
22 22
23 enum ieee80211_regd_source { 23 enum ieee80211_regd_source {
24 REGD_SOURCE_INTERNAL_DB, 24 REGD_SOURCE_INTERNAL_DB,
25 REGD_SOURCE_CRDA, 25 REGD_SOURCE_CRDA,
26 REGD_SOURCE_CACHED, 26 REGD_SOURCE_CACHED,
27 }; 27 };
28 28
29 extern const struct ieee80211_regdomain __rcu 29 extern const struct ieee80211_regdomain __rcu *cfg80211_regdomain;
30 30
31 bool reg_is_valid_request(const char *alpha2); 31 bool reg_is_valid_request(const char *alpha2);
32 bool is_world_regdom(const char *alpha2); 32 bool is_world_regdom(const char *alpha2);
33 bool reg_supported_dfs_region(enum nl80211_dfs 33 bool reg_supported_dfs_region(enum nl80211_dfs_regions dfs_region);
34 enum nl80211_dfs_regions reg_get_dfs_region(st 34 enum nl80211_dfs_regions reg_get_dfs_region(struct wiphy *wiphy);
35 35
36 int regulatory_hint_user(const char *alpha2, 36 int regulatory_hint_user(const char *alpha2,
37 enum nl80211_user_reg 37 enum nl80211_user_reg_hint_type user_reg_hint_type);
38 38
39 /** 39 /**
40 * regulatory_hint_indoor - hint operation in 40 * regulatory_hint_indoor - hint operation in indoor env. or not
41 * @is_indoor: if true indicates that user spa 41 * @is_indoor: if true indicates that user space thinks that the
42 * device is operating in an indoor environmen 42 * device is operating in an indoor environment.
43 * @portid: the netlink port ID on which the h 43 * @portid: the netlink port ID on which the hint was given.
44 */ 44 */
45 void regulatory_hint_indoor(bool is_indoor, u3 !! 45 int regulatory_hint_indoor(bool is_indoor, u32 portid);
46 46
47 /** 47 /**
48 * regulatory_netlink_notify - notify on relea 48 * regulatory_netlink_notify - notify on released netlink socket
49 * @portid: the netlink socket port ID 49 * @portid: the netlink socket port ID
50 */ 50 */
51 void regulatory_netlink_notify(u32 portid); 51 void regulatory_netlink_notify(u32 portid);
52 52
53 void wiphy_regulatory_register(struct wiphy *w 53 void wiphy_regulatory_register(struct wiphy *wiphy);
54 void wiphy_regulatory_deregister(struct wiphy 54 void wiphy_regulatory_deregister(struct wiphy *wiphy);
55 55
56 int __init regulatory_init(void); 56 int __init regulatory_init(void);
57 void regulatory_exit(void); 57 void regulatory_exit(void);
58 58
59 int set_regdom(const struct ieee80211_regdomai 59 int set_regdom(const struct ieee80211_regdomain *rd,
60 enum ieee80211_regd_source regd 60 enum ieee80211_regd_source regd_src);
61 61
62 unsigned int reg_get_max_bandwidth(const struc 62 unsigned int reg_get_max_bandwidth(const struct ieee80211_regdomain *rd,
63 const struc 63 const struct ieee80211_reg_rule *rule);
64 64
65 bool reg_last_request_cell_base(void); 65 bool reg_last_request_cell_base(void);
>> 66 const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy);
66 67
67 /** 68 /**
68 * regulatory_hint_found_beacon - hints a beac 69 * regulatory_hint_found_beacon - hints a beacon was found on a channel
69 * @wiphy: the wireless device where the beaco 70 * @wiphy: the wireless device where the beacon was found on
70 * @beacon_chan: the channel on which the beac 71 * @beacon_chan: the channel on which the beacon was found on
71 * @gfp: context flags 72 * @gfp: context flags
72 * 73 *
73 * This informs the wireless core that a beaco 74 * This informs the wireless core that a beacon from an AP was found on
74 * the channel provided. This allows the wirel 75 * the channel provided. This allows the wireless core to make educated
75 * guesses on regulatory to help with world ro 76 * guesses on regulatory to help with world roaming. This is only used for
76 * world roaming -- when we do not know our cu 77 * world roaming -- when we do not know our current location. This is
77 * only useful on channels 12, 13 and 14 on th 78 * only useful on channels 12, 13 and 14 on the 2 GHz band as channels
78 * 1-11 are already enabled by the world regul 79 * 1-11 are already enabled by the world regulatory domain; and on
79 * non-radar 5 GHz channels. 80 * non-radar 5 GHz channels.
80 * 81 *
81 * Drivers do not need to call this, cfg80211 82 * Drivers do not need to call this, cfg80211 will do it for after a scan
82 * on a newly found BSS. If you cannot make us 83 * on a newly found BSS. If you cannot make use of this feature you can
83 * set the wiphy->disable_beacon_hints to true 84 * set the wiphy->disable_beacon_hints to true.
84 */ 85 */
85 void regulatory_hint_found_beacon(struct wiphy !! 86 int regulatory_hint_found_beacon(struct wiphy *wiphy,
86 struct ieee8 !! 87 struct ieee80211_channel *beacon_chan,
87 gfp_t gfp); !! 88 gfp_t gfp);
88 89
89 /** 90 /**
90 * regulatory_hint_country_ie - hints a countr 91 * regulatory_hint_country_ie - hints a country IE as a regulatory domain
91 * @wiphy: the wireless device giving the hint 92 * @wiphy: the wireless device giving the hint (used only for reporting
92 * conflicts) 93 * conflicts)
93 * @band: the band on which the country IE was 94 * @band: the band on which the country IE was received on. This determines
94 * the band we'll process the country IE 95 * the band we'll process the country IE channel triplets for.
95 * @country_ie: pointer to the country IE 96 * @country_ie: pointer to the country IE
96 * @country_ie_len: length of the country IE 97 * @country_ie_len: length of the country IE
97 * 98 *
98 * We will intersect the rd with the what CRDA 99 * We will intersect the rd with the what CRDA tells us should apply
99 * for the alpha2 this country IE belongs to, 100 * for the alpha2 this country IE belongs to, this prevents APs from
100 * sending us incorrect or outdated informatio 101 * sending us incorrect or outdated information against a country.
101 * 102 *
102 * The AP is expected to provide Country IE ch 103 * The AP is expected to provide Country IE channel triplets for the
103 * band it is on. It is technically possible f 104 * band it is on. It is technically possible for APs to send channel
104 * country IE triplets even for channels outsi 105 * country IE triplets even for channels outside of the band they are
105 * in but for that they would have to use the 106 * in but for that they would have to use the regulatory extension
106 * in combination with a triplet but this beha 107 * in combination with a triplet but this behaviour is currently
107 * not observed. For this reason if a triplet 108 * not observed. For this reason if a triplet is seen with channel
108 * information for a band the BSS is not prese 109 * information for a band the BSS is not present in it will be ignored.
109 */ 110 */
110 void regulatory_hint_country_ie(struct wiphy * 111 void regulatory_hint_country_ie(struct wiphy *wiphy,
111 enum nl80211_band ban 112 enum nl80211_band band,
112 const u8 *country_ie, 113 const u8 *country_ie,
113 u8 country_ie_len); 114 u8 country_ie_len);
114 115
115 /** 116 /**
116 * regulatory_hint_disconnect - informs all de 117 * regulatory_hint_disconnect - informs all devices have been disconnected
117 * 118 *
118 * Regulotory rules can be enhanced further up 119 * Regulotory rules can be enhanced further upon scanning and upon
119 * connection to an AP. These rules become sta 120 * connection to an AP. These rules become stale if we disconnect
120 * and go to another country, whether or not w 121 * and go to another country, whether or not we suspend and resume.
121 * If we suspend, go to another country and re 122 * If we suspend, go to another country and resume we'll automatically
122 * get disconnected shortly after resuming and 123 * get disconnected shortly after resuming and things will be reset as well.
123 * This routine is a helper to restore regulat 124 * This routine is a helper to restore regulatory settings to how they were
124 * prior to our first connect attempt. This in 125 * prior to our first connect attempt. This includes ignoring country IE and
125 * beacon regulatory hints. The ieee80211_regd 126 * beacon regulatory hints. The ieee80211_regdom module parameter will always
126 * be respected but if a user had set the regu 127 * be respected but if a user had set the regulatory domain that will take
127 * precedence. 128 * precedence.
128 * 129 *
129 * Must be called from process context. 130 * Must be called from process context.
130 */ 131 */
131 void regulatory_hint_disconnect(void); 132 void regulatory_hint_disconnect(void);
132 133
133 /** 134 /**
134 * cfg80211_get_unii - get the U-NII band for 135 * cfg80211_get_unii - get the U-NII band for the frequency
135 * @freq: the frequency for which we want to g 136 * @freq: the frequency for which we want to get the UNII band.
136 * !! 137
137 * Get a value specifying the U-NII band frequ 138 * Get a value specifying the U-NII band frequency belongs to.
138 * U-NII bands are defined by the FCC in C.F.R 139 * U-NII bands are defined by the FCC in C.F.R 47 part 15.
139 * 140 *
140 * Return: -EINVAL if freq is invalid, 0 for U !! 141 * Returns -EINVAL if freq is invalid, 0 for UNII-1, 1 for UNII-2A,
141 * 2 for UNII-2B, 3 for UNII-2C and 4 for UNII 142 * 2 for UNII-2B, 3 for UNII-2C and 4 for UNII-3.
142 */ 143 */
143 int cfg80211_get_unii(int freq); 144 int cfg80211_get_unii(int freq);
144 145
145 /** 146 /**
146 * regulatory_indoor_allowed - is indoor opera 147 * regulatory_indoor_allowed - is indoor operation allowed
147 * Return: %true if indoor operation is allowe <<
148 */ 148 */
149 bool regulatory_indoor_allowed(void); 149 bool regulatory_indoor_allowed(void);
150 150
151 /* 151 /*
152 * Grace period to timeout pre-CAC results on 152 * Grace period to timeout pre-CAC results on the dfs channels. This timeout
153 * value is used for Non-ETSI domain. 153 * value is used for Non-ETSI domain.
154 * TODO: May be make this timeout available th 154 * TODO: May be make this timeout available through regdb?
155 */ 155 */
156 #define REG_PRE_CAC_EXPIRY_GRACE_MS 2000 156 #define REG_PRE_CAC_EXPIRY_GRACE_MS 2000
157 157
158 /** 158 /**
159 * regulatory_propagate_dfs_state - Propagate 159 * regulatory_propagate_dfs_state - Propagate DFS channel state to other wiphys
160 * @wiphy: wiphy on which radar is detected an !! 160 * @wiphy - wiphy on which radar is detected and the event will be propagated
161 * to other available wiphys having the s 161 * to other available wiphys having the same DFS domain
162 * @chandef: Channel definition of radar detec !! 162 * @chandef - Channel definition of radar detected channel
163 * @dfs_state: DFS channel state to be set !! 163 * @dfs_state - DFS channel state to be set
164 * @event: Type of radar event which triggered !! 164 * @event - Type of radar event which triggered this DFS state change
165 * 165 *
166 * This function should be called with rtnl lo 166 * This function should be called with rtnl lock held.
167 */ 167 */
168 void regulatory_propagate_dfs_state(struct wip 168 void regulatory_propagate_dfs_state(struct wiphy *wiphy,
169 struct cfg 169 struct cfg80211_chan_def *chandef,
170 enum nl802 170 enum nl80211_dfs_state dfs_state,
171 enum nl802 171 enum nl80211_radar_event event);
172 172
173 /** 173 /**
174 * reg_dfs_domain_same - Checks if both wiphy 174 * reg_dfs_domain_same - Checks if both wiphy have same DFS domain configured
175 * @wiphy1: wiphy it's dfs_region to be checke !! 175 * @wiphy1 - wiphy it's dfs_region to be checked against that of wiphy2
176 * @wiphy2: wiphy it's dfs_region to be checke !! 176 * @wiphy2 - wiphy it's dfs_region to be checked against that of wiphy1
177 * Return: %true if both wiphys have the same <<
178 */ 177 */
179 bool reg_dfs_domain_same(struct wiphy *wiphy1, 178 bool reg_dfs_domain_same(struct wiphy *wiphy1, struct wiphy *wiphy2);
180 179
181 /** 180 /**
182 * reg_reload_regdb - reload the regulatory.db 181 * reg_reload_regdb - reload the regulatory.db firmware file
183 * Return: 0 for success, an error code otherw <<
184 */ 182 */
185 int reg_reload_regdb(void); 183 int reg_reload_regdb(void);
186 <<
187 /** <<
188 * reg_check_channels - schedule regulatory en <<
189 */ <<
190 void reg_check_channels(void); <<
191 184
192 extern const u8 shipped_regdb_certs[]; 185 extern const u8 shipped_regdb_certs[];
193 extern unsigned int shipped_regdb_certs_len; 186 extern unsigned int shipped_regdb_certs_len;
194 extern const u8 extra_regdb_certs[]; 187 extern const u8 extra_regdb_certs[];
195 extern unsigned int extra_regdb_certs_len; 188 extern unsigned int extra_regdb_certs_len;
196 189
197 #endif /* __NET_WIRELESS_REG_H */ 190 #endif /* __NET_WIRELESS_REG_H */
198 191
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