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* cfg80211: don't allow disabling WEXT if it's requiredJohannes Berg2015-04-081-1/+1
| | | | | | | | | | | | | | The change to only export WEXT symbols when required could break the build if CONFIG_CFG80211_WEXT was explicitly disabled while a driver like orinoco selected it. Fix this by hiding the symbol when it's required so it can't be disabled in that case. Fixes: 2afe38d15cee ("cfg80211-wext: export symbols only when needed") Reported-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Jim Davis <jim.epost@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211-wext: export symbols only when neededJohannes Berg2015-02-281-0/+8
| | | | | | | | | | | | | | When a fully converted cfg80211 driver needs cfg80211-wext for userspace API purposes, the symbols need not be exported. When other drivers (orinoco/hermes or ipw2200) are enabled, they do need the symbols exported as they use them directly. Make those drivers select a new CFG80211_WEXT_EXPORT Kconfig symbol (instead of just CFG80211_WEXT) and export the functions only if requested - this saves about 1/2k due to the size of EXPORT_SYMBOL() itself. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Revert "cfg80211: make WEXT compatibility unselectable"Jiri Kosina2014-12-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 24a0aa212ee2dbe44360288684478d76a8e20a0a. It's causing severe userspace breakage. Namely, all the utilities from wireless-utils which are relying on CONFIG_WEXT (which means tools like 'iwconfig', 'iwlist', etc) are not working anymore. There is a 'iw' utility in newer wireless-tools, which is supposed to be a replacement for all the "deprecated" binaries, but it's far away from being massively adopted. Please see [1] for example of the userspace breakage this is causing. In addition to that, Larry Finger reports [2] that this patch is also causing ipw2200 driver being impossible to build. To me this clearly shows that CONFIG_WEXT is far, far away from being "deprecated enough" to be removed. [1] http://thread.gmane.org/gmane.linux.kernel/1857010 [2] http://thread.gmane.org/gmane.linux.network/343688 Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* cfg80211: make WEXT compatibility unselectableJohannes Berg2014-11-281-1/+1
| | | | | | | | | | | | This option has been marked for deprecation and removal for a little more than two years, but it's not been very clearly signalled since it was always possible to just select it. Make it unselectable now to signal anyone who's still using it after all this time more clearly. They can still get it back, but only by patching the kernel. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* wireless: fixup genregdb.awk for remove of antenna gain from wireless-regdLuis R. Rodriguez2014-07-211-0/+6
| | | | | | | | | | | | | | | | | | Since "wireless-regdb: remove antenna gain" was merged in the wireless-regdb tree, the awk script parser has been incompatible with the 'official' regulatory database. This fixes that up. Without this change the max EIRP is set to 0 making 802.11 devices useless. The fragile nature of the awk parser must be replaced, but ideas over how to do that in the most scalable way are being reviewed. In the meantime update the documentation for CFG80211_INTERNAL_REGDB so folks are aware of expectations for now. Reported-by: John Walker <john@x109.net> Reported-by: Krishna Chaitanya <chaitanya.mgit@gmail.com> Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Enable GO operation on additional channelsIlan Peer2014-04-091-0/+24
| | | | | | | | | | | | | | | | | | | | | Allow GO operation on a channel marked with IEEE80211_CHAN_GO_CONCURRENT iff there is an active station interface that is associated to an AP operating on the same channel in the 2 GHz band or the same UNII band (in the 5 GHz band). This relaxation is not allowed if the channel is marked with IEEE80211_CHAN_RADAR. Note that this is a permissive approach to the FCC definitions, that require a clear assessment that the device operating the AP is an authorized master, i.e., with radar detection and DFS capabilities. It is assumed that such restrictions are enforced by user space. Furthermore, it is assumed, that if the conditions that allowed for the operation of the GO on such a channel change, i.e., the station interface disconnected from the AP, it is the responsibility of user space to evacuate the GO from the channel. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Add Kconfig option for cellular BS hintsIlan Peer2014-04-091-0/+13
| | | | | | | | | Move the regulatory cellular base station hints support under a specific configuration option and make the option depend on CFG80211_CERTIFICATION_ONUS. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* lib80211: hide Kconfig symbolJohannes Berg2012-11-161-3/+2
| | | | | | | | | There's no need to ask the user about lib80211 since it will be selected by drivers requiring it, hide it from Kconfig. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: add CONFIG_CFG80211_CERTIFICATION_ONUSLuis R. Rodriguez2012-07-171-0/+21
| | | | | | | | | | | | | | | | | | | | This adds CONFIG_CFG80211_CERTIFICATION_ONUS which is to be used for features / code which require a bit of work on the system integrator's part to ensure that the system will still pass 802.11 regulatory certification. This option is also usable for researchers and experimenters looking to add code in the kernel without impacting compliant code. We'd use CONFIG_EXPERT alone but it seems that most standard Linux distributions are enabling CONFIG_EXPERT already. This allows us to define 802.11 specific kernel features under a flag that is intended by design to be disabled by standard Linux distributions, and only enabled by system integrators or distributions that have done work to ensure regulatory certification on the system with the enabled features. Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: deprecate CFG80211_WEXTJohannes Berg2012-06-051-1/+0
| | | | | | | | | | | Almost all wireless tools have transitioned to or at least added compatibility with nl80211 so there's no real need for CONFIG_CFG80211_WEXT any more. Mark it for removal, and also change the default to not be enabled. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: remove wext sysfsJohannes Berg2012-06-051-13/+0
| | | | | | | | | The only user of this was hal prior to its 0.5.12 release which happened over two years ago, so I'm sure this can be removed without issues. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: disable wext sysfs by defaultJohannes Berg2011-12-071-3/+4
| | | | | | | | | | | | | This code has been on the list to remove for a long time, so disable it by default, add a warning to its Kconfig, and schedule it for removal in 3.5. The only known dependency, hal, has not required it since its 0.5.12 release, which was in early 2009 and hal has since been deprecated completely. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERTDavid Rientjes2011-01-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option is used to configure any non-standard kernel with a much larger scope than only small devices. This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes references to the option throughout the kernel. A new CONFIG_EMBEDDED option is added that automatically selects CONFIG_EXPERT when enabled and can be used in the future to isolate options that should only be considered for embedded systems (RISC architectures, SLOB, etc). Calling the option "EXPERT" more accurately represents its intention: only expert users who understand the impact of the configuration changes they are making should enable it. Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: David Woodhouse <david.woodhouse@intel.com> Signed-off-by: David Rientjes <rientjes@google.com> Cc: Greg KH <gregkh@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jens Axboe <axboe@kernel.dk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Robin Holt <holt@sgi.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* wireless: remove CONFIG_WIRELESS_OLD_REGULATORYJohn W. Linville2009-12-281-15/+0
| | | | | | | This is no longer needed with the availability of CONFIG_CFG80211_INTERNAL_REGDB. Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: support internal statically compiled regulatory databaseJohn W. Linville2009-12-211-0/+16
| | | | | | | | | | | | This patch provides infrastructure for machine translation of the regulatory rules database used by CRDA into a C data structure. It includes code for searching that database as an alternative to dynamic regulatory rules updates via CRDA. Most people should use CRDA instead of this infrastructure, but it provides a better alternative than the WIRELESS_OLD_REGULATORY infrastructure (which can now be removed). Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: convert bools into flagsJohannes Berg2009-11-191-6/+0
| | | | | | | | | We've accumulated a number of options for wiphys which make more sense as flags as we keep adding more. Convert the existing ones. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wext: refactorJohannes Berg2009-10-071-15/+35
| | | | | | | | | | | | | | | | | | | | | | | | Refactor wext to * split out iwpriv handling * split out iwspy handling * split out procfs support * allow cfg80211 to have wireless extensions compat code w/o CONFIG_WIRELESS_EXT After this, drivers need to - select WIRELESS_EXT - for wext support - select WEXT_PRIV - for iwpriv support - select WEXT_SPY - for iwspy support except cfg80211 -- which gets new hooks in wext-core.c and can then get wext handlers without CONFIG_WIRELESS_EXT. Wireless extensions procfs support is auto-selected based on PROC_FS and anything that requires the wext core (i.e. WIRELESS_EXT or CFG80211_WEXT). Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: update cfg80211 kconfig entryLuis R. Rodriguez2009-09-081-1/+10
| | | | | | | | | | cfg80211 is now *the* wireless configuration API. Lets also give a little explanation as to what it is and refer people to the wireless wiki for more information. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: update reg debug kconfig entryLuis R. Rodriguez2009-09-021-0/+4
| | | | | | | Refer to the wireless wiki for more information. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: make spurious warnings less likely, configurableJohannes Berg2009-08-281-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | Bob reported that he got warnings in IBSS mode about the ssid_len being zero on a joined event, but only when kmemcheck was enabled. This appears to be due to a race condition between drivers and userspace, when the driver reports joined but the user in the meantime decided to leave the IBSS again, the warning would trigger. This was made more likely by kmemcheck delaying the code that does the check and sends the event. So first, make the warning trigger closer to the driver, which means it's not locked, but since only the warning depends on it that's ok. And secondly, users will not want to have spurious warnings at all, so make those that are known to be racy in such a way configurable. Reported-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: implement iwpowerJohannes Berg2009-07-101-0/+16
| | | | | | | | | Just on/off and timeout, and with a hacky cfg80211 method until we figure out what we want, though this is probably sufficient as we want to use pm_qos for wifi everywhere. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: introduce nl80211 testmode commandJohannes Berg2009-07-101-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces a new NL80211_CMD_TESTMODE for testing and calibration use with nl80211. There's no multiplexing like like iwpriv had, and the command is not available by default, it needs to be explicitly enabled in Kconfig and shouldn't be enabled in most kernels. The command requires a wiphy index or interface index to identify the device to operate on, and the new TESTDATA attribute. There also is API for sending replies to the command, and testmode multicast messages (on a testmode multicast group). I've also updated mac80211 to be able to pass through the command to the driver, since it itself doesn't implement the testmode command. Additionally, to give people an idea of how to use the command, I've added a little code to hwsim that makes use of the new command to set the powersave mode, this is currently done via debugfs and should remain there, and the testmode command only serves as an example of how to use this best -- with nested netlink attributes in the TESTDATA attribute. A hwsim testmode tool can be found at http://git.sipsolutions.net/hwsim.git/. This tool is BSD licensed so people can easily use it as a basis for their own internal fabrication and validation tools. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wext: default to yJohannes Berg2009-07-101-9/+3
| | | | | | | | | | | | | The way I initially thought we could do wireless extensions is by making all the compat code in cfg80211 be independent of CONFIG_WIRELESS_EXT, but this is turning out to not be feasible. Therefore, fix the Kconfig help text and make the option default to yes, so people won't get a nasty surprise when mac80211 will get rid of its 'select WIRELESS_EXT' any time now. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: add rfkill supportJohannes Berg2009-06-031-1/+2
| | | | | | | | | | | To be easier on drivers and users, have cfg80211 register an rfkill structure that drivers can access. When soft-killed, simply take down all interfaces; when hard-killed the driver needs to notify us and we will take down the interfaces after the fact. While rfkilled, interfaces cannot be set UP. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211/cfg80211: move wiphy specific debugfs entries to cfg80211Luis R. Rodriguez2009-05-201-0/+8
| | | | | | | | | | | | | | This moves the cfg80211 specific stuff to new cfg80211 debugfs entries. Non-mac80211 will also get these entries now. There were only 4 which we take: rts_threshold fragmentation_threshold short_retry_limit long_retry_limit Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: default CONFIG_WIRELESS_OLD_REGULATORY to nLuis R. Rodriguez2009-03-271-28/+9
| | | | | | | | And update description and feature-removal schedule according to the new plan. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/nl80211: remove usage of CONFIG_NL80211Reinette Chatre2009-03-271-13/+0
| | | | | | | | | | | | | The scan capability added to cfg80211/nl80211 introduced a dependency on nl80211 by cfg80211. We can thus no longer have just cfg80211 without nl80211. Specifically, cfg80211_scan_done() calls nl80211_send_scan_aborted() or nl80211_send_scan_done(). Now we remove the option for user to select nl80211. It will always be compiled if user selects cfg80211. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* lib80211: silence excessive crypto debugging messagesJohn W. Linville2009-03-161-0/+10
| | | | | | | | When they were part of the now defunct ieee80211 component, these messages were only visible when special debugging settings were enabled. Let's mirror that with a new lib80211 debugging Kconfig option. Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/mac80211: Add 802.11d supportLuis R. Rodriguez2008-11-251-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* lib80211: absorb crypto bits from net/ieee80211John W. Linville2008-11-211-0/+9
| | | | | | | | | These bits are shared already between ipw2x00 and hostap, and could probably be shared both more cleanly and with other drivers. This commit simply relocates the code to lib80211 and adjusts the drivers appropriately. Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: consolidate on a single escape_essid implementationJohn W. Linville2008-10-311-0/+10
| | | | Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: fix regression caused by regulatory config optionArjan van de Ven2008-10-261-6/+5
| | | | | | | | | | | | | | | | | | | The default for the regulatory compatibility option is wrong; if you picked the default you ended up with a non-functional wifi system (at least I did on Fedora 9 with iwl4965). I don't think even the October 2008 releases of the various distros has the new userland so clearly the default is wrong, and also we can't just go about deleting this in 2.6.29... Change the default to "y" and also adjust the config text a little to reflect this. This patch fixes regression #11859 With thanks to Johannes Berg for the diagnostics Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* wireless: fix typo in Kconfig.Davide Pesavento2008-10-061-1/+1
| | | | | Signed-off-by: Davide Pesavento <davidepesa@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211: Add new wireless regulatory infrastructureLuis R. Rodriguez2008-09-151-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the new wireless regulatory infrastructure. The main motiviation behind this was to centralize regulatory code as each driver was implementing their own regulatory solution, and to replace the initial centralized code we have where: * only 3 regulatory domains are supported: US, JP and EU * regulatory domains can only be changed through module parameter * all rules were built statically in the kernel We now have support for regulatory domains for many countries and regulatory domains are now queried through a userspace agent through udev allowing distributions to update regulatory rules without updating the kernel. Each driver can regulatory_hint() a regulatory domain based on either their EEPROM mapped regulatory domain value to a respective ISO/IEC 3166-1 country code or pass an internally built regulatory domain. We also add support to let the user set the regulatory domain through userspace in case of faulty EEPROMs to further help compliance. Support for world roaming will be added soon for cards capable of this. For more information see: http://wireless.kernel.org/en/developers/Regulatory/CRDA For now we leave an option to enable the old module parameter, ieee80211_regdom, and to build the 3 old regdomains statically (US, JP and EU). This option is CONFIG_WIRELESS_OLD_REGULATORY. These old static definitions and the module parameter is being scheduled for removal for 2.6.29. Note that if you use this you won't make use of a world regulatory domain as its pointless. If you leave this option enabled and if CRDA is present and you use US or JP we will try to ask CRDA to update us a regulatory domain for us. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* net/wireless/Kconfig: clarify the description for CONFIG_WIRELESS_EXT_SYSFSFlorian Mickler2008-09-021-1/+2
| | | | | | | | | | | | Current setup with hal and NetworkManager will fail to work without newest hal version with this config option disabled. Although this will solve itself by time, at the moment it is dishonest to say that we don't know any software that uses it, if there are many many people relying on old hal versions. Signed-off-by: Florian Mickler <florian@mickler.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wext: make sysfs bits optional and deprecate themJohannes Berg2008-07-141-0/+11
| | | | | | | | | | | The /sys/class/net/*/wireless/ direcory is, as far as I know, not used by anyone. Additionally, the same data is available via wext ioctls. Hence the sysfs files are pretty much useless. This patch makes them optional and schedules them for removal. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* net/wireless/Kconfig: whitespace correctionsJohn W. Linville2008-01-281-5/+5
| | | | | Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [WIRELESS]: Fix Kconfig.Andrew Morton2007-10-101-1/+1
| | | | | | | Seems that a bare "depends" is no longer allowed in Sam's kbuild tree. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NL80211]: add netlink interface to cfg80211Johannes Berg2007-10-101-1/+16
| | | | | | Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [WIRELESS]: Remove wext over netlink.Johannes Berg2007-04-251-10/+0
| | | | | | | | As scheduled, this patch removes the pointless wext over netlink code. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [WIRELESS] cfg80211: New wireless config infrastructure.Johannes Berg2007-04-251-0/+3
| | | | | | | | | | | | | | | This patch creates the core cfg80211 code along with some sysfs bits. This is a stripped down version to allow mac80211 to function, but doesn't include any configuration yet except for creating and removing virtual interfaces. This patch includes the nl80211 header file but it only contains the interface types which the cfg80211 interface for creating virtual interfaces relies on. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [WIRELESS]: Refactor wireless Kconfig.Johannes Berg2007-04-251-0/+23
This patch refactors the wireless Kconfig all over and already introduces net/wireless/Kconfig with just the WEXT bit for now, the cfg80211 patch will add to that as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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