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Functions | Variables
reg.h File Reference

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bool is_world_regdom (const char *alpha2)
bool reg_is_valid_request (const char *alpha2)
bool reg_supported_dfs_region (u8 dfs_region)
int regulatory_hint_user (const char *alpha2, enum nl80211_user_reg_hint_type user_reg_hint_type)
int reg_device_uevent (struct device *dev, struct kobj_uevent_env *env)
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)
bool reg_last_request_cell_base (void)
int regulatory_hint_found_beacon (struct wiphy *wiphy, struct ieee80211_channel *beacon_chan, gfp_t gfp)
void regulatory_hint_11d (struct wiphy *wiphy, enum ieee80211_band band, u8 *country_ie, u8 country_ie_len)
void regulatory_hint_disconnect (void)


struct ieee80211_regdomaincfg80211_regdomain

Function Documentation

bool is_world_regdom ( const char alpha2)

Definition at line 218 of file reg.c.

int reg_device_uevent ( struct device dev,
struct kobj_uevent_env env 

Definition at line 2381 of file reg.c.

bool reg_is_valid_request ( const char alpha2)

Definition at line 438 of file reg.c.

bool reg_last_request_cell_base ( void  )

Definition at line 960 of file reg.c.

bool reg_supported_dfs_region ( u8  dfs_region)

Definition at line 2127 of file reg.c.

void regulatory_exit ( void  )

Definition at line 2484 of file reg.c.

void regulatory_hint_11d ( struct wiphy wiphy,
enum ieee80211_band  band,
u8 country_ie,
u8  country_ie_len 

regulatory_hint_11d - hints a country IE as a regulatory domain : the wireless device giving the hint (used only for reporting conflicts) : the band on which the country IE was received on. This determines the band we'll process the country IE channel triplets for. : pointer to the country IE : 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CRDA tells us should apply for the alpha2 this country IE belongs to, this prevents APs from sending us incorrect or outdated information against a country.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.

Definition at line 1797 of file reg.c.

void regulatory_hint_disconnect ( void  )

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.

Definition at line 2038 of file reg.c.

int regulatory_hint_found_beacon ( struct wiphy wiphy,
struct ieee80211_channel beacon_chan,
gfp_t  gfp 

regulatory_hint_found_beacon - hints a beacon was found on a channel : the wireless device where the beacon was found on : the channel on which the beacon was found on : 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.

Definition at line 2054 of file reg.c.

int regulatory_hint_user ( const char alpha2,
enum nl80211_user_reg_hint_type  user_reg_hint_type 

Definition at line 1744 of file reg.c.

int __init regulatory_init ( void  )

Definition at line 2434 of file reg.c.

int set_regdom ( const struct ieee80211_regdomain rd)

Definition at line 2331 of file reg.c.

void wiphy_regulatory_deregister ( struct wiphy wiphy)

Definition at line 2402 of file reg.c.

void wiphy_regulatory_register ( struct wiphy wiphy)

Definition at line 2387 of file reg.c.

Variable Documentation

struct ieee80211_regdomain* cfg80211_regdomain

Definition at line 93 of file reg.c.