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189 lines
7.2 KiB
189 lines
7.2 KiB
#ifndef __NET_WIRELESS_REG_H |
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#define __NET_WIRELESS_REG_H |
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#include <net/cfg80211.h> |
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/* |
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* Copyright 2008-2011 Luis R. Rodriguez <[email protected]> |
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* Copyright (C) 2019 Intel Corporation |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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enum ieee80211_regd_source { |
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REGD_SOURCE_INTERNAL_DB, |
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REGD_SOURCE_CRDA, |
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REGD_SOURCE_CACHED, |
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}; |
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extern const struct ieee80211_regdomain __rcu *cfg80211_regdomain; |
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bool reg_is_valid_request(const char *alpha2); |
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bool is_world_regdom(const char *alpha2); |
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bool reg_supported_dfs_region(enum nl80211_dfs_regions dfs_region); |
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enum nl80211_dfs_regions reg_get_dfs_region(struct wiphy *wiphy); |
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int regulatory_hint_user(const char *alpha2, |
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enum nl80211_user_reg_hint_type user_reg_hint_type); |
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/** |
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* regulatory_hint_indoor - hint operation in indoor env. or not |
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* @is_indoor: if true indicates that user space thinks that the |
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* device is operating in an indoor environment. |
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* @portid: the netlink port ID on which the hint was given. |
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*/ |
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int regulatory_hint_indoor(bool is_indoor, u32 portid); |
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/** |
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* regulatory_netlink_notify - notify on released netlink socket |
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* @portid: the netlink socket port ID |
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*/ |
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void regulatory_netlink_notify(u32 portid); |
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void wiphy_regulatory_register(struct wiphy *wiphy); |
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void wiphy_regulatory_deregister(struct wiphy *wiphy); |
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int __init regulatory_init(void); |
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void regulatory_exit(void); |
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int set_regdom(const struct ieee80211_regdomain *rd, |
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enum ieee80211_regd_source regd_src); |
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unsigned int reg_get_max_bandwidth(const struct ieee80211_regdomain *rd, |
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const struct ieee80211_reg_rule *rule); |
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bool reg_last_request_cell_base(void); |
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/** |
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* regulatory_hint_found_beacon - hints a beacon was found on a channel |
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* @wiphy: the wireless device where the beacon was found on |
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* @beacon_chan: the channel on which the beacon was found on |
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* @gfp: context flags |
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* |
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* This informs the wireless core that a beacon from an AP was found on |
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* the channel provided. This allows the wireless core to make educated |
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* guesses on regulatory to help with world roaming. This is only used for |
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* world roaming -- when we do not know our current location. This is |
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* only useful on channels 12, 13 and 14 on the 2 GHz band as channels |
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* 1-11 are already enabled by the world regulatory domain; and on |
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* non-radar 5 GHz channels. |
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* |
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* Drivers do not need to call this, cfg80211 will do it for after a scan |
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* on a newly found BSS. If you cannot make use of this feature you can |
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* set the wiphy->disable_beacon_hints to true. |
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*/ |
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int regulatory_hint_found_beacon(struct wiphy *wiphy, |
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struct ieee80211_channel *beacon_chan, |
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gfp_t gfp); |
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/** |
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* regulatory_hint_country_ie - hints a country IE as a regulatory domain |
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* @wiphy: the wireless device giving the hint (used only for reporting |
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* conflicts) |
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* @band: the band on which the country IE was received on. This determines |
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* the band we'll process the country IE channel triplets for. |
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* @country_ie: pointer to the country IE |
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* @country_ie_len: length of the country IE |
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* |
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* We will intersect the rd with the what CRDA tells us should apply |
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* for the alpha2 this country IE belongs to, this prevents APs from |
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* sending us incorrect or outdated information against a country. |
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* |
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* The AP is expected to provide Country IE channel triplets for the |
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* band it is on. It is technically possible for APs to send channel |
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* country IE triplets even for channels outside of the band they are |
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* in but for that they would have to use the regulatory extension |
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* in combination with a triplet but this behaviour is currently |
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* not observed. For this reason if a triplet is seen with channel |
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* information for a band the BSS is not present in it will be ignored. |
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*/ |
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void regulatory_hint_country_ie(struct wiphy *wiphy, |
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enum nl80211_band band, |
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const u8 *country_ie, |
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u8 country_ie_len); |
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/** |
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* regulatory_hint_disconnect - informs all devices have been disconnected |
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* |
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* Regulotory rules can be enhanced further upon scanning and upon |
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* connection to an AP. These rules become stale if we disconnect |
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* and go to another country, whether or not we suspend and resume. |
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* If we suspend, go to another country and resume we'll automatically |
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* get disconnected shortly after resuming and things will be reset as well. |
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* This routine is a helper to restore regulatory settings to how they were |
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* prior to our first connect attempt. This includes ignoring country IE and |
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* beacon regulatory hints. The ieee80211_regdom module parameter will always |
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* be respected but if a user had set the regulatory domain that will take |
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* precedence. |
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* |
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* Must be called from process context. |
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*/ |
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void regulatory_hint_disconnect(void); |
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/** |
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* cfg80211_get_unii - get the U-NII band for the frequency |
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* @freq: the frequency for which we want to get the UNII band. |
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* Get a value specifying the U-NII band frequency belongs to. |
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* U-NII bands are defined by the FCC in C.F.R 47 part 15. |
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* |
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* Returns -EINVAL if freq is invalid, 0 for UNII-1, 1 for UNII-2A, |
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* 2 for UNII-2B, 3 for UNII-2C and 4 for UNII-3. |
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*/ |
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int cfg80211_get_unii(int freq); |
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/** |
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* regulatory_indoor_allowed - is indoor operation allowed |
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*/ |
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bool regulatory_indoor_allowed(void); |
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/* |
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* Grace period to timeout pre-CAC results on the dfs channels. This timeout |
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* value is used for Non-ETSI domain. |
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* TODO: May be make this timeout available through regdb? |
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*/ |
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#define REG_PRE_CAC_EXPIRY_GRACE_MS 2000 |
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/** |
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* regulatory_propagate_dfs_state - Propagate DFS channel state to other wiphys |
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* @wiphy - wiphy on which radar is detected and the event will be propagated |
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* to other available wiphys having the same DFS domain |
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* @chandef - Channel definition of radar detected channel |
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* @dfs_state - DFS channel state to be set |
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* @event - Type of radar event which triggered this DFS state change |
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* |
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* This function should be called with rtnl lock held. |
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*/ |
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void regulatory_propagate_dfs_state(struct wiphy *wiphy, |
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struct cfg80211_chan_def *chandef, |
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enum nl80211_dfs_state dfs_state, |
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enum nl80211_radar_event event); |
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/** |
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* reg_dfs_domain_same - Checks if both wiphy have same DFS domain configured |
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* @wiphy1 - wiphy it's dfs_region to be checked against that of wiphy2 |
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* @wiphy2 - wiphy it's dfs_region to be checked against that of wiphy1 |
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*/ |
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bool reg_dfs_domain_same(struct wiphy *wiphy1, struct wiphy *wiphy2); |
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/** |
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* reg_reload_regdb - reload the regulatory.db firmware file |
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*/ |
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int reg_reload_regdb(void); |
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extern const u8 shipped_regdb_certs[]; |
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extern unsigned int shipped_regdb_certs_len; |
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extern const u8 extra_regdb_certs[]; |
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extern unsigned int extra_regdb_certs_len; |
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#endif /* __NET_WIRELESS_REG_H */
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