1
linux/net/wireless/Kconfig
Luis R. Rodriguez 3f2355cb91 cfg80211/mac80211: Add 802.11d support
This adds country IE parsing to mac80211 and enables its usage
within the new regulatory infrastructure in cfg80211. We parse
the country IEs only on management beacons for the BSSID you are
associated to and disregard the IEs when the country and environment
(indoor, outdoor, any) matches the already processed country IE.

To avoid following misinformed or outdated APs we build and use
a regulatory domain out of the intersection between what the AP
provides us on the country IE and what CRDA is aware is allowed
on the same country.

A secondary device is allowed to follow only the same country IE
as it make no sense for two devices on a system to be in two
different countries.

In the case the AP is using country IEs for an incorrect country
the user may help compliance further by setting the regulatory
domain before or after the IE is parsed and in that case another
intersection will be performed.

CONFIG_WIRELESS_OLD_REGULATORY is supported but requires CRDA
present.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-11-25 16:41:26 -05:00

105 lines
3.2 KiB
Plaintext

config CFG80211
tristate "Improved wireless configuration API"
config CFG80211_REG_DEBUG
bool "cfg80211 regulatory debugging"
depends on CFG80211
default n
---help---
You can enable this if you want to debug regulatory changes.
If unsure, say N.
config NL80211
bool "nl80211 new netlink interface support"
depends on CFG80211
default y
---help---
This option turns on the new netlink interface
(nl80211) support in cfg80211.
If =n, drivers using mac80211 will be configured via
wireless extension support provided by that subsystem.
If unsure, say Y.
config WIRELESS_OLD_REGULATORY
bool "Old wireless static regulatory definitions"
default y
---help---
This option enables the old static regulatory information
and uses it within the new framework. This is available
temporarily as an option to help prevent immediate issues
due to the switch to the new regulatory framework which
does require a new userspace application which has the
database of regulatory information (CRDA) and another for
setting regulatory domains (iw).
For more information see:
http://wireless.kernel.org/en/developers/Regulatory/CRDA
http://wireless.kernel.org/en/users/Documentation/iw
It is important to note though that if you *do* have CRDA present
and if this option is enabled CRDA *will* be called to update the
regulatory domain (for US and JP only). Support for letting the user
set the regulatory domain through iw is also supported. This option
mainly exists to leave around for a kernel release some old static
regulatory domains that were defined and to keep around the old
ieee80211_regdom module parameter. This is being phased out and you
should stop using them ASAP.
Note: You will need CRDA if you want 802.11d support
Say Y unless you have installed a new userspace application.
Also say Y if have one currently depending on the ieee80211_regdom
module parameter and cannot port it to use the new userspace
interfaces.
config WIRELESS_EXT
bool "Wireless extensions"
default n
---help---
This option enables the legacy wireless extensions
(wireless network interface configuration via ioctls.)
Wireless extensions will be replaced by cfg80211 and
will be required only by legacy drivers that implement
wireless extension handlers. This option does not
affect the wireless-extension backward compatibility
code in cfg80211.
Say N (if you can) unless you know you need wireless
extensions for external modules.
config WIRELESS_EXT_SYSFS
bool "Wireless extensions sysfs files"
default y
depends on WIRELESS_EXT && SYSFS
help
This option enables the deprecated wireless statistics
files in /sys/class/net/*/wireless/. The same information
is available via the ioctls as well.
Say Y if you have programs using it, like old versions of
hal.
config LIB80211
tristate "Common routines for IEEE802.11 drivers"
default n
help
This options enables a library of common routines used
by IEEE802.11 wireless LAN drivers.
Drivers should select this themselves if needed. Say Y if
you want this built into your kernel.
config LIB80211_CRYPT_WEP
tristate
config LIB80211_CRYPT_CCMP
tristate
config LIB80211_CRYPT_TKIP
tristate