30 May, 2014
1 commit
27 May, 2014
1 commit
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Generalize the power conversion from mW to dBm
using log. This should fix the below compilation
error for country NO which adds a new power value
2000mW which is not handled earlier.CC [M] net/wireless/wext-sme.o
CC [M] net/wireless/regdb.o
net/wireless/regdb.c:1130:1: error: Unknown undeclared here (not in
a function)
net/wireless/regdb.c:1130:9: error: expected } before power
make[2]: *** [net/wireless/regdb.o] Error 1
make[1]: *** [net/wireless] Error 2
make: *** [net] Error 2Reported-By: John Walker
Signed-off-by: Chaitanya T K
Acked-by: John W. Linville
[remove unneeded parentheses, fix rounding by using %.0f]
Signed-off-by: Johannes Berg
26 May, 2014
1 commit
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We're currently sending NEW_WIPHY events for renames (which
is a bit odd, but now can't be changed), but also send them
for really new devices that register.Also send DEL_WIPHY events when a device is removed, the
event ID for this was already reserved.Signed-off-by: Johannes Berg
23 May, 2014
1 commit
22 May, 2014
1 commit
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Channels in 2.4GHz band overlap, this means that if we
send a probe request on channel 1 and then move to channel
2, we will hear the probe response on channel 2. In this
case, the RSSI will be lower than if we had heard it on
the channel on which it was sent (1 in this case).The firmware / low level driver can parse the channel in
the DS IE or HT IE and compensate the RSSI so that it will
still have a valid value even if we heard the frame on an
adjacent channel. This can be done up to a certain offset.Add this offset as a configuration for the low level driver.
A low level driver that can compensate the low RSSI in this
case should assign the maximal offset for which the RSSI
value is still valid.Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
21 May, 2014
2 commits
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Otherwise every "indoor" setting by usermode will cause a regdomain reset.
Acked-by: Luis R. Rodriguez
Signed-off-by: Arik Nemtsov
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg -
Implement and export the new cfg80211_get_station() API.
This utility can be used by other kernel modules to obtain
detailed information about a given wireless station.It will be in particular useful to batman-adv which will
implement a wireless rate based metric.Signed-off-by: Antonio Quartulli
Signed-off-by: Johannes Berg
20 May, 2014
2 commits
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Users may need information about the expected throughput
towards a given peer.
This value is supposed to consider the size overhead
generated by the 802.11 header.This value is exported in kbps through the get_station() API
by including it into the station_info object.
Moreover, it is sent to user space when replying to the
nl80211 GET_STATION command.This information will be useful to the batman-adv module
which will use it for its new metric computation.Signed-off-by: Antonio Quartulli
Signed-off-by: Johannes Berg -
This requires changing the nl80211 parsing code a bit to use
intermediate pointers for the allocation, but clarifies the
API towards the drivers.Signed-off-by: Johannes Berg
19 May, 2014
1 commit
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This also propagates through the drivers.
The orinoco driver uses the cfg80211 API structs for internal
bookkeeping, and so needs a (void *) cast that removes the
const - but that's OK because it allocates those pointers.Signed-off-by: Johannes Berg
15 May, 2014
3 commits
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Change the type of NL80211_ATTR_CSA_C_OFF_BEACON and
NL80211_ATTR_CSA_C_OFF_PRESP to be NLA_BINARY which allows
userspace to use beacons and probe responses with
multiple CSA counters.
This isn't breaking the API since userspace can
continue to use nla_put_u16 for this attributes, which
is equivalent to a single element u16 array.
In addition advertise max number of supported CSA counters.
This is needed when using CSA and eCSA IEs together.Signed-off-by: Andrei Otcheretianski
Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Add NL80211_ATTR_CSA_C_OFFSETS_TX which holds an array
of offsets to the CSA counters which should be updated
when sending a management frames with NL80211_CMD_FRAME.This API should be used by the drivers that wish to keep the
CSA counter updated in probe responses, but do not implement
probe response offloading and so, do not use
ieee80211_proberesp_get function.Signed-off-by: Andrei Otcheretianski
Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
There is no need to pass NL80211_IFTYPE_UNSPECIFIED when calling
cfg80211_chandef_dfs_required() since we always already have the
interface type. So, pass the actual interface type instead.Additionally, have cfg80211_chandef_dfs_required() WARN if the passed
interface type is NL80211_IFTYPE_UNSPECIFIED, so we can detect
problems more easily.Tested-by: Janusz Dziedzic
Reported-by: Eliad Peller
Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg
14 May, 2014
2 commits
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After patch:
cfg80211/mac80211: refactor cfg80211_chandef_dfs_required()start_radar_detection always fail with -EINVAL.
Acked-by: Luciano Coelho
Signed-off-by: Janusz Dziedzic
Signed-off-by: Johannes Berg
13 May, 2014
1 commit
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At the moment, the ath9k/ath10k DFS module only supports detecting ETSI
radar patterns.
Add a bitmap in the interface combinations, indicating which DFS regions
are supported by the detector. If unset, support for all regions is
assumed.Signed-off-by: Felix Fietkau
Signed-off-by: Johannes Berg
09 May, 2014
1 commit
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When the driver fails during HW restart or resume, the whole
stack goes into a very confused state with interfaces being
up while the hardware is down etc.Address this by shutting down everything; we'll run into a
lot of warnings in the process but that's better than having
the whole stack get messed up.Reviewed-by: Arik Nemtsov
Signed-off-by: Johannes Berg
06 May, 2014
1 commit
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This exports a new cfg80211_stop_iface() function.
This is intended for driver internal interface
combination management and channel switching.Due to locking issues (it re-enters driver) the
call is asynchronous and uses cfg80211 event
list/worker.Signed-off-by: Michal Kazior
Signed-off-by: Johannes Berg
05 May, 2014
2 commits
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Add locked-version for cfg80211_sched_scan_stopped.
This is used for some users that might want to
call it when rtnl is already locked.Fixes: d43c6b6 ("mac80211: reschedule sched scan after HW restart")
Cc: stable@vger.kernel.org (3.14+)
Signed-off-by: Eliad Peller
Signed-off-by: Johannes Berg -
cfg80211 is notified about connection failures by
__cfg80211_connect_result() call. However, this
function currently does not free cfg80211 sme.This results in hanging connection attempts in some cases
e.g. when mac80211 authentication attempt is denied,
we have this function call:
ieee80211_rx_mgmt_auth() -> cfg80211_rx_mlme_mgmt() ->
cfg80211_process_auth() -> cfg80211_sme_rx_auth() ->
__cfg80211_connect_result()but cfg80211_sme_free() is never get called.
Fixes: ceca7b712 ("cfg80211: separate internal SME implementation")
Cc: stable@vger.kernel.org (3.10+)
Signed-off-by: Eliad Peller
Signed-off-by: Johannes Berg
29 Apr, 2014
2 commits
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These really can't trigger unless somebody messes up the code,
but don't make debugging it needlessly complicated, WARN and
return instead of BUG_ON().Signed-off-by: Johannes Berg
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This extends NL80211_CMD_SET_CHANNEL to allow dynamic channel bandwidth
changes in AP mode (including P2P GO) during a lifetime of the BSS. This
can be used to implement, e.g., HT 20/40 MHz co-existence rules on the
2.4 GHz band.Signed-off-by: Jouni Malinen
Signed-off-by: Johannes Berg
25 Apr, 2014
7 commits
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Current code checks if the 20MHz bandwidth is allowed for
particular channel -- if it is not, the channel is disabled.
Since we need to use 5/10 MHz channels, this code is modified in
the way that the default bandwidth to check is 5MHz. If the
maximum bandwidth allowed by the channel is smaller than 5MHz,
the channel is disabled. Otherwise the channel is used and the
flags are set according to the bandwidth allowed by the channel.Signed-off-by: Rostislav Lisovy
Signed-off-by: Johannes Berg -
Since there are frequency bands (e.g. 5.9GHz) allowing channels
with only 10 or 5 MHz bandwidth, this patch adds attributes that
allow keeping track about this information.When channel attributes are reported to user-space, make sure to
not break old tools, i.e. if the 'split wiphy dump' is enabled,
report the extra attributes (if present) describing the bandwidth
restrictions. If the 'split wiphy dump' is not enabled,
completely omit those channels that have flags set to either
IEEE80211_CHAN_NO_10MHZ or IEEE80211_CHAN_NO_20MHZ.Add the check for new bandwidth restriction flags in
cfg80211_chandef_usable() to comply with the restrictions.Signed-off-by: Rostislav Lisovy
Signed-off-by: Johannes Berg -
Return NOTIFY_DONE if we don't care this time's notification, return
NOTIFY_OK if we successfully handled this time's notification. That's
the formal way to do it.Signed-off-by: Zhao, Gang
Signed-off-by: Johannes Berg -
Name wiphy_to_rdev is more accurate to describe what the function
does, i.e., return a pointer pointing to struct
cfg80211_registered_device.Signed-off-by: Zhao, Gang
Signed-off-by: Johannes Berg -
Name "dev" is too common and ambiguous, let all the pointer name
pointing to struct cfg80211_registered_device be "rdev". This can
improve code readability and consistency(since other places have
already called it rdev).Signed-off-by: Zhao, Gang
Signed-off-by: Johannes Berg -
The patch splits cfg80211_check_combinations()
into an iterator function and a simple iteration
user.This makes it possible for drivers to asses how
many channels can use given iftype setup. This in
turn can be used for future
multi-interface/multi-channel channel switching.Signed-off-by: Michal Kazior
Signed-off-by: Johannes Berg -
At some locations, channels 149-165 are considered a single
bundle, while at some other locations, e.g., Indonesia, channels
149-161 are considered a single bundle, while channel 165 belongs
to a different bundle. This means that:1. A station interface connection to an AP on channel 165 allows
the instantiation of a P2P GO on channels 149-165.
2. A station interface connection to an AP on channels 149-161
does NOT allow the instantiation of a P2P GO on channel 165.Fix this.
Signed-off-by: Ilan Peer
Signed-off-by: Johannes Berg
22 Apr, 2014
2 commits
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This allows processing of the last regulatory request when
we determine its still pending. Without this if a regulatory
request failed to get processed by userspace we wouldn't
be able to re-process it later. An example situation that can
lead to an unprocessed last_request is enabling cfg80211 to
be built-in to the kernel, not enabling CFG80211_INTERNAL_REGDB
and the CRDA binary not being available at the time the udev
rule that kicks of CRDA triggers.In such a situation we want to let some cfg80211 triggers
eventually kick CRDA for us again. Without this if the first
cycle attempt to kick off CRDA failed we'd be stuck without
the ability to change process any further regulatory domains.cfg80211 will trigger re-processing of the regulatory queue
whenever schedule_work(®_work) is called, currently this
happens when:* suspend / resume
* disconnect
* a beacon hint gets triggered (non DFS 5 GHz AP found)
* a regulatory request gets added to the queueWe don't have any specific opportunistic late boot triggers
to address a late mount of where CRDA resides though, adding
that should be done separately through another patch.
Without an opportunistic fix then this fix relies at least
one of the triggeres above to happen.Reported-by: Sander Eikelenboom
Signed-off-by: Luis R. Rodriguez
Signed-off-by: Johannes Berg -
Avoid freeing the last request while it is being processed. This can
happen in some cases if reg_work is kicked for some reason while the
currently pending request is in flight.Cc: Sander Eikelenboom
Tested-by: Eliad Peller
Tested-by: Colleen Twitty
Signed-off-by: Arik Nemtsov
Signed-off-by: Luis R. Rodriguez
Signed-off-by: Johannes Berg
11 Apr, 2014
1 commit
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Set DFS CAC time also in case of using custom
and strict regulatory from drivers. In other case
we could have unset DFS CAC time directly after
driver loaded and before issue regulatory set from
user mode.Signed-off-by: Janusz Dziedzic
Signed-off-by: Johannes Berg
10 Apr, 2014
3 commits
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When looking for a BSS matching given parameters, ignore invalid
BSSIDs. This avoids, for example, trying to join an IBSS that has
a multicast BSSID, which isn't supported by all drivers nor is it
a valid configuration of the IBSS so better create a new one with
a correctly chosen random BSSID.Signed-off-by: Johannes Berg
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Don't allow using a multicast address as the BSSID, that
isn't a valid configuration.Signed-off-by: Johannes Berg
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cfg80211_wext_freq() is declared in wext-compat.h, but its
parameter struct wiphy's declaration is not included there.
As the parameter isn't used, just remove it.Signed-off-by: Zhao, Gang
[remove parameter instead of changing to netdev]
Signed-off-by: Johannes Berg
09 Apr, 2014
5 commits
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All bits from radar_detect must match combination
radar bitmask. Otherwise it is theoretically
possible to lead into an invalid combination
provided a driver reports strange combinations.Signed-off-by: Michal Kazior
Signed-off-by: Johannes Berg -
Get rid of the cfg80211_can_add_interface() and
cfg80211_can_change_interface() functions by moving that functionality
to mac80211. With this patch all interface combination checks are now
out of cfg80211 (except for the channel switch case which will be
addressed in a future commit).Additionally, modify the ieee80211_check_combinations() function so
that an undefined chandef can be passed, in order to use it before a
channel is defined.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Now that mac80211 can check the interface combinations itself, move
the combinations check from cfg80211 to mac80211 when joining an IBSS.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Move the counting part of the interface combination check from
cfg80211 to mac80211.This is needed to simplify locking when the driver has to perform a
combination check by itself (eg. with channel-switch).Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg -
Some interface types don't require DFS (such as STATION, P2P_CLIENT
etc). In order to centralize these decisions, make
cfg80211_chandef_dfs_required() take the iftype into consideration.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg