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