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cfg80211: allow wiphy specific regdomain management

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Add a new regulatory flag that allows a driver to manage regdomain
changes/updates for its own wiphy.
A self-managed wiphys only employs regulatory information obtained from
the FW and driver and does not use other cfg80211 sources like
beacon-hints, country-code IEs and hints from other devices on the same
system. Conversely, a self-managed wiphy does not share its regulatory
hints with other devices in the system. If a system contains several
devices, one or more of which are self-managed, there might be
contradictory regulatory settings between them. Usage of flag is
generally discouraged. Only use it if the FW/driver is incompatible
with non-locally originated hints.

A new API lets the driver send a complete regdomain, to be applied on
its wiphy only.

After a wiphy-specific regdomain change takes place, usermode will get
a new type of change notification. The regulatory core also takes care
enforce regulatory restrictions, in case some interfaces are on
forbidden channels.

Signed-off-by: Jonathan Doron <jonathanx.doron@intel.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Jonathan Doron 2014-12-15 19:26:00 +02:00 • committed by Johannes Berg
parent ad30ca2c03
commit b0d7aa5959
8 changed files with 188 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

19
include/net/regulatory.h
View file

@ -147,6 +147,24 @@ struct regulatory_request {
* NL80211_IFTYPE_P2P_CLIENT, NL80211_IFTYPE_P2P_GO,
* NL80211_IFTYPE_P2P_DEVICE. The flag will be set by default if a device
* includes any modes unsupported for enforcement checking.
* @REGULATORY_WIPHY_SELF_MANAGED: for devices that employ wiphy-specific
* regdom management. These devices will ignore all regdom changes not
* originating from their own wiphy.
* A self-managed wiphys only employs regulatory information obtained from
* the FW and driver and does not use other cfg80211 sources like
* beacon-hints, country-code IEs and hints from other devices on the same
* system. Conversely, a self-managed wiphy does not share its regulatory
* hints with other devices in the system. If a system contains several
* devices, one or more of which are self-managed, there might be
* contradictory regulatory settings between them. Usage of flag is
* generally discouraged. Only use it if the FW/driver is incompatible
* with non-locally originated hints.
* This flag is incompatible with the flags: %REGULATORY_CUSTOM_REG,
* %REGULATORY_STRICT_REG, %REGULATORY_COUNTRY_IE_FOLLOW_POWER,
* %REGULATORY_COUNTRY_IE_IGNORE and %REGULATORY_DISABLE_BEACON_HINTS.
* Mixing any of the above flags with this flag will result in a failure
* to register the wiphy. This flag implies
* %REGULATORY_DISABLE_BEACON_HINTS and %REGULATORY_COUNTRY_IE_IGNORE.
*/
enum ieee80211_regulatory_flags {
REGULATORY_CUSTOM_REG = BIT(0),
@ -156,6 +174,7 @@ enum ieee80211_regulatory_flags {
REGULATORY_COUNTRY_IE_IGNORE = BIT(4),
REGULATORY_ENABLE_RELAX_NO_IR = BIT(5),
REGULATORY_IGNORE_STALE_KICKOFF = BIT(6),
REGULATORY_WIPHY_SELF_MANAGED = BIT(7),
};
struct ieee80211_freq_range {