12 Apr, 2016
1 commit
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This enum is already perfectly aliased to enum nl80211_band, and
the only reason for it is that we get IEEE80211_NUM_BANDS out of
it. There's no really good reason to not declare the number of
bands in nl80211 though, so do that and remove the cfg80211 one.Signed-off-by: Johannes Berg
05 Mar, 2016
1 commit
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Since offset is zero, it's not necessary to use set function. Reset
function is straightforward, and will remove the unnecessary add
operation in set function.Signed-off-by: Zhang Shengju
Signed-off-by: David S. Miller
24 Feb, 2016
5 commits
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This massively reduces data copying and thus improves rx performance
Signed-off-by: Felix Fietkau
Signed-off-by: Johannes Berg -
reuse_skb is set to true if the code decides to use the last segment.
Fixes a memory leakSigned-off-by: Felix Fietkau
Signed-off-by: Johannes Berg -
Signed-off-by: Felix Fietkau
Signed-off-by: Johannes Berg -
Use skb_copy_bits in preparation for allowing fragmented skbs
Signed-off-by: Felix Fietkau
Signed-off-by: Johannes Berg -
Prepararation for zero-copy A-MSDU support with page fragment SKBs
Signed-off-by: Felix Fietkau
Signed-off-by: Johannes Berg
04 Dec, 2015
2 commits
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Last caller of this function was removed in 3.17 in commit
97dc94f1d933c9df2c0b327066ea130c0e92083f.Signed-off-by: Michal Sojka
Signed-off-by: Johannes Berg -
The function is a very simple wrapper around another one,
just adds a few default parameters, so replace it with a
static inline instead of using EXPORT_SYMBOL, reducing
the module size slightly.Signed-off-by: Johannes Berg
29 May, 2015
1 commit
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It was possible for mac80211 to be coerced into an
unexpected flow causing sdata union to become
corrupted. Station pointer was put into
sdata->u.vlan.sta memory location while it was
really master AP's sdata->u.ap.next_beacon. This
led to station entry being later freed as
next_beacon before __sta_info_flush() in
ieee80211_stop_ap() and a subsequent invalid
pointer dereference crash.The problem was that ieee80211_ptr->use_4addr
wasn't cleared on interface type changes.This could be reproduced with the following steps:
# host A and host B have just booted; no
# wpa_s/hostapd running; all vifs are down
host A> iw wlan0 set type station
host A> iw wlan0 set 4addr on
host A> printf 'interface=wlan0\nssid=4addrcrash\nchannel=1\nwds_sta=1' > /tmp/hconf
host A> hostapd -B /tmp/conf
host B> iw wlan0 set 4addr on
host B> ifconfig wlan0 up
host B> iw wlan0 connect -w hostAssid
host A> pkill hostapd
# host A crashed:[ 127.928192] BUG: unable to handle kernel NULL pointer dereference at 00000000000006c8
[ 127.929014] IP: [] __sta_info_flush+0xac/0x158
...
[ 127.934578] [] ieee80211_stop_ap+0x139/0x26c
[ 127.934578] [] ? dump_trace+0x279/0x28a
[ 127.934578] [] __cfg80211_stop_ap+0x84/0x191
[ 127.934578] [] cfg80211_stop_ap+0x3f/0x58
[ 127.934578] [] nl80211_stop_ap+0x1b/0x1d
[ 127.934578] [] genl_family_rcv_msg+0x259/0x2b5Note: This isn't a revert of f8cdddb8d61d
("cfg80211: check iface combinations only when
iface is running") as far as functionality is
considered because b6a550156bc ("cfg80211/mac80211:
move more combination checks to mac80211") moved
the logic somewhere else already.Fixes: f8cdddb8d61d ("cfg80211: check iface combinations only when iface is running")
Signed-off-by: Michal Kazior
Signed-off-by: Johannes Berg
26 May, 2015
1 commit
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When we disconnect from the AP, drivers call cfg80211_disconnect().
This doesn't know whether the disconnection was initiated locally
or by the AP though, which can cause problems with the supplicant,
for example with WPS. This issue obviously doesn't show up with any
mac80211 based driver since mac80211 doesn't call this function.Fix this by requiring drivers to indicate whether the disconnect is
locally generated or not. I've tried to update the drivers, but may
not have gotten the values correct, and some drivers may currently
not be able to report correct values. In case of doubt I left it at
false, which is the current behaviour.For libertas, make adjustments as indicated by Dan Williams.
Reported-by: Matthieu Mauger
Tested-by: Matthieu Mauger
Signed-off-by: Johannes Berg
07 Apr, 2015
1 commit
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As the next patch will require the IE splitting utility functions
in cfg80211, move them there from mac80211.Signed-off-by: Johannes Berg
30 Mar, 2015
1 commit
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Seems Broadcom TDLS peers (Nexus 5, Xperia Z3) refuse to allow TDLS
connection when channel-switching is supported but the regulatory
classes IE is missing from the setup request.
Add a chandef to reg-class translation function to cfg80211 and use it
to add the required IE during setup. For now add only the current
regulatory class as supported - it is enough to resolve the
compatibility issue.Signed-off-by: Arik Nemtsov
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
03 Mar, 2015
1 commit
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Operating classes 128-130 are defined in the 11ac
spec for the 5GHz band.Update ieee80211_operating_class_to_band() to support them.
Signed-off-by: Eliad Peller
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
05 Feb, 2015
1 commit
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…inux/kernel/git/jberg/mac80211-next
Last round of updates for net-next:
* revert a patch that caused a regression with mesh userspace (Bob)
* fix a number of suspend/resume related races
(from Emmanuel, Luca and myself - we'll look at backporting later)
* add software implementations for new ciphers (Jouni)
* add a new ACPI ID for Broadcom's rfkill (Mika)
* allow using netns FD for wireless (Vadim)
* some other cleanups (various)Signed-off-by: David S. Miller <davem@davemloft.net>
28 Jan, 2015
1 commit
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Conflicts:
arch/arm/boot/dts/imx6sx-sdb.dts
net/sched/cls_bpf.cTwo simple sets of overlapping changes.
Signed-off-by: David S. Miller
27 Jan, 2015
2 commits
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This makes cfg80211 aware of the GCMP, GCMP-256, CCMP-256, BIP-GMAC-128,
BIP-GMAC-256, and BIP-CMAC-256 cipher suites. These new cipher suites
were defined in IEEE Std 802.11ac-2013.Signed-off-by: Jouni Malinen
Signed-off-by: Johannes Berg -
This cipher can be used only as a group management frame cipher and as
such, there is no point in validating that it is not used with non-zero
key-index. Instead, verify that it is not used as a pairwise cipher
regardless of the key index.Signed-off-by: Jouni Malinen
[change code to use switch statement which is easier to extend]
Signed-off-by: Johannes Berg
23 Jan, 2015
1 commit
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HT Control field may also be present in management frames, as defined
in 8.2.4.1.10 of 802.11-2012. Account for this in calculation of header
length.Signed-off-by: Fred Chou
Signed-off-by: Johannes Berg
20 Jan, 2015
1 commit
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…inux/kernel/git/jberg/mac80211-next
Some further updates for net-next:
* fix network-manager which was broken by the previous changes
* fix delete-station events, which were broken by me making the
genlmsg_end() mistake
* fix a timer left running during suspend in some race conditions
that would cause an annoying (but harmless) warning
* (less important, but in the tree already) remove 80+80 MHz rate
reporting since the spec doesn't distinguish it from 160 MHz;
as the bitrate they're both 160 MHz bandwidthSigned-off-by: David S. Miller <davem@davemloft.net>
16 Jan, 2015
1 commit
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For some reason, we made the bandwidth separate flags, which
is rather confusing - a single rate cannot have different
bandwidths at the same time.Change this to no longer be flags but use a separate field
for the bandwidth ('bw') instead.While at it, add support for 5 and 10 MHz rates - these are
reported as regular legacy rates with their real bitrate,
but tagged as 5/10 now to make it easier to distinguish them.In the nl80211 API, the flags are preserved, but the code
now can also clearly only set a single one of the flags.Signed-off-by: Johannes Berg
15 Jan, 2015
1 commit
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These rates are treated the same as 160 MHz in the spec, so
it makes no sense to distinguish them. As no driver uses them
yet, this is also not a problem, just remove them.In the userspace API the field remains reserved to preserve
API and ABI.Signed-off-by: Johannes Berg
14 Jan, 2015
1 commit
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The same macros are used for rx as well. So rename it.
Signed-off-by: Jiri Pirko
Signed-off-by: David S. Miller
04 Nov, 2014
1 commit
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This patch adds new iface type (NL80211_IFTYPE_OCB) representing
the OCB (Outside the Context of a BSS) mode.
When establishing a connection to the network a cfg80211_join_ocb
function is called (particular nl80211_command is added as well).
A mandatory parameters during the ocb_join operation are 'center
frequency' and 'channel width (5/10 MHz)'.Changes done in mac80211 are minimal possible required to avoid
many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB'
not handled in switch) during compilation. Full functionality
(where needed) is added in the following patch.Signed-off-by: Rostislav Lisovy
Signed-off-by: Johannes Berg
11 Sep, 2014
1 commit
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When freeing the connect keys, clear the memory to avoid
having the key material stick around in memory "forever".Signed-off-by: Johannes Berg
05 Sep, 2014
1 commit
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Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.For files that we have modified in the time since the change,
add the proper copyright notice now.Signed-off-by: Johannes Berg
Signed-off-by: Emmanuel Grumbach
Signed-off-by: Johannes Berg
21 May, 2014
1 commit
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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
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
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
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
25 Apr, 2014
2 commits
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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 -
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
09 Apr, 2014
4 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 -
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 -
Separate the code that counts the interface types and channels from
the code that check the interface combinations. The new function that
checks for combinations is exported so it can be called by the
drivers.This is done in preparation for moving the interface combinations
checks out of cfg80211.Signed-off-by: Luciano Coelho
Signed-off-by: Johannes Berg
22 Mar, 2014
1 commit
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…wireless-next into for-davem
20 Mar, 2014
1 commit
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Macro ASSERT_RDEV_LOCK(rdev) is equal to ASSERT_RTNL(), so replace it
with ASSERT_RTNL() and remove it.Signed-off-by: Zhao, Gang
Signed-off-by: Johannes Berg
14 Mar, 2014
1 commit
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…wireless-next into for-davem
Conflicts:
drivers/net/wireless/ath/ath9k/recv.c
05 Mar, 2014
1 commit
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MPLS labels may contain traffic control information, which should be
evaluated and used by the wireless subsystem if present.Also check for IEEE 802.21 which is always network control traffic.
Signed-off-by: Simon Wunderlich
Signed-off-by: Mathias Kretschmer
Acked-by: Johannes Berg
Signed-off-by: David S. Miller
