initial_commit

1 files changed, 85 insertions, 0 deletions

diff --git a/net/wireless/reg.h b/net/wireless/reg.h
new file mode 100644
index 00000000..b67d1c3a
--- /dev/null
+++ b/net/wireless/reg.h
@@ -0,0 +1,85 @@
+#ifndef __NET_WIRELESS_REG_H
+#define __NET_WIRELESS_REG_H
+
+extern const struct ieee80211_regdomain *cfg80211_regdomain;
+
+bool is_world_regdom(const char *alpha2);
+bool reg_is_valid_request(const char *alpha2);
+
+int regulatory_hint_user(const char *alpha2);
+
+int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env);
+void reg_device_remove(struct wiphy *wiphy);
+
+int __init regulatory_init(void);
+void regulatory_exit(void);
+
+int set_regdom(const struct ieee80211_regdomain *rd);
+
+/**
+ * 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_11d - 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+ * sending us incorrect or outdated information against a country.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_11d(struct wiphy *wiphy,
+			 enum ieee80211_band band,
+			 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);
+
+#endif  /* __NET_WIRELESS_REG_H */