This patch fixes the behaviour to not overwrite csma settings when
set channel afterwards.
Cc: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
When receiving neighbour information with short address option field we
should check the complete range of invalid short addresses and set it to
one invalid address setting which is the unspecified address. This
address is also used when by creating at first a new neighbour entry to
indicate no short address is set.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch fixes ieee802154_get_fc_from_skb function on big endian
machines. The function get_unaligned_le16 converts the byte order to
host byte order but we want to keep the byte order like in mac header.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The RIOT-OS stack does send intra-pan frames but don't set the intra pan
flag inside the mac header. It seems this is valid frame addressing but
inefficient. Anyway this patch adds a new function for intra pan
addressing, doesn't matter if intra pan flag or source and destination
are the same. The newly introduction function will be used to check on
intra pan addressing for 6lowpan.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds ieee802154_skb_src_pan function to get the pointer
address of the source pan id at skb mac pointer.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds ieee802154_skb_dst_pan function to get the pointer
address of the destination pan id at skb mac pointer.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
With current btusb.ko kernel module, Bluetooth pretends to be active
but there is no real activity.
I'm using an Acer Aspire VN7-791.
Output of lsusb:
Bus 003 Device 007: ID 0489:e092 Foxconn / Hon Hai
On my laptop, this device is actually used as a combo with wifi chipset
Atheros Qualcomm Killer N1525 Wireless-AC [168c:003e],
* Fix by adding a declaration in kernel sources drivers/bluetooth/btusb.c
{ USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
* Compiled extra module /lib/modules/4.4.0-22-generic/extra/btusb.ko
* Successfully tested against my phone (obex file transfer)
Signed-off-by: Yvain THONNART <yvain.thonnart@m4x.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Kasan reported slab-out-of-bounds access in btmrvl_sdio:
[ 33.055400] ==================================================================
[ 33.062585] BUG: KASAN: slab-out-of-bounds in memcpy+0x24/0x50 at addr ffffffc0d89b4a00
[ 33.070529] Read of size 256 by task btmrvl_main_ser/3576
[ 33.075885] =============================================================================
[ 33.084002] BUG kmalloc-256 (Tainted: G B ): kasan: bad access detected
[ 33.091511] -----------------------------------------------------------------------------
<snip...>
[ 33.413498] Call trace:
[ 33.415928] [<ffffffc00020a440>] dump_backtrace+0x0/0x190
[ 33.421288] [<ffffffc00020a5ec>] show_stack+0x1c/0x28
[ 33.426305] [<ffffffc000b3288c>] dump_stack+0xa0/0xf8
[ 33.431320] [<ffffffc000396130>] print_trailer+0x158/0x16c
[ 33.436765] [<ffffffc0003962cc>] object_err+0x48/0x5c
[ 33.441780] [<ffffffc00039be24>] kasan_report+0x344/0x510
[ 33.447141] [<ffffffc00039afd8>] __asan_loadN+0x20/0x150
[ 33.452413] [<ffffffc00039b60c>] memcpy+0x20/0x50
[ 33.457084] [<ffffffc000595fcc>] swiotlb_tbl_map_single+0x2ec/0x310
[ 33.463305] [<ffffffc000596b54>] map_single+0x24/0x30
[ 33.468320] [<ffffffc0005970c8>] swiotlb_map_sg_attrs+0xec/0x21c
[ 33.474286] [<ffffffc000219d4c>] __swiotlb_map_sg_attrs+0x48/0xec
[ 33.480339] [<ffffffc0008ea610>] msdc_prepare_data.isra.11+0xf0/0x11c
[ 33.486733] [<ffffffc0008ecbd0>] msdc_ops_request+0x74/0xf0
[ 33.492266] [<ffffffc0008c6b38>] __mmc_start_request+0x78/0x8c
[ 33.498057] [<ffffffc0008c6d6c>] mmc_start_request+0x220/0x240
[ 33.503848] [<ffffffc0008c6e04>] mmc_wait_for_req+0x78/0x250
[ 33.509468] [<ffffffc0008d70fc>] mmc_io_rw_extended+0x2ec/0x388
[ 33.515347] [<ffffffc0008d8fc0>] sdio_io_rw_ext_helper+0x160/0x268
[ 33.521483] [<ffffffc0008d93fc>] sdio_writesb+0x40/0x50
[ 33.526677] [<ffffffbffc338b38>] btmrvl_sdio_host_to_card+0x124/0x1bc [btmrvl_sdio]
[ 33.534283] [<ffffffbffc3290a0>] btmrvl_service_main_thread+0x384/0x428 [btmrvl]
[ 33.541626] [<ffffffc0002518e8>] kthread+0x140/0x158
[ 33.546550] Memory state around the buggy address:
[ 33.551305] ffffffc0d89b4980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 33.558474] ffffffc0d89b4a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 33.565643] >ffffffc0d89b4a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[ 33.572809] ^
[ 33.579889] ffffffc0d89b4b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 33.587055] ffffffc0d89b4b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 33.594221] ==================================================================
The cause of this is that btmrvl_sdio_host_to_card can access memory region
out of its allocated space due to:
1. the requested block size is smaller than SDIO_BLOCK_SIZE, and/or
2. the allocated memory is not BTSDIO_DMA_ALIGN-aligned.
This patch fixes the issue by allocating a buffer which is big enough for
SDIO_BLOCK_SIZE transfer and/or BTSDIO_DMA_ALIGN address relocation.
Signed-off-by: Ricky Liang <jcliang@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The format of Intel Bluetooth firmware filename for bootloader product
is ibt-<hw_variant>-<device_revision_id>.sfi
Currently the driver uses a constant value 11 (0x0b) for hw_variant
to support LnP/SfP product. But new product like WsP product has
a different value such as 12 (0x0c).
To support the multiple products, this patch replaces the constant
value of hw_variant to the actual hw_variant value read from
the device.
Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
If recvmsg is called with a destination buffer that is too small to
receive the contents of skb in its entirety, the return value from
recvmsg was inconsistent with common SOCK_SEQPACKET or SOCK_DGRAM
semantics.
If destination buffer provided by userspace is too small (e.g. len <
copied), then MSG_TRUNC flag is set and copied is returned. Instead, it
should return the length of the message, which is consistent with how
other datagram based sockets act. Quoting 'man recv':
"All three calls return the length of the message on successful comple‐
tion. If a message is too long to fit in the supplied buffer, excess
bytes may be discarded depending on the type of socket the message is
received from."
and
"MSG_TRUNC (since Linux 2.2)
For raw (AF_PACKET), Internet datagram (since Linux
2.4.27/2.6.8), netlink (since Linux 2.6.22), and UNIX datagram
(since Linux 3.4) sockets: return the real length of the packet
or datagram, even when it was longer than the passed buffer."
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
If recvmsg is called with a destination buffer that is too small to
receive the contents of skb in its entirety, the return value from
recvmsg was inconsistent with common SOCK_SEQPACKET or SOCK_DGRAM
semantics.
If destination buffer provided by userspace is too small (e.g. len <
copied), then MSG_TRUNC flag is set and copied is returned. Instead, it
should return the length of the message, which is consistent with how
other datagram based sockets act. Quoting 'man recv':
"All three calls return the length of the message on successful comple‐
tion. If a message is too long to fit in the supplied buffer, excess
bytes may be discarded depending on the type of socket the message is
received from."
and
"MSG_TRUNC (since Linux 2.2)
For raw (AF_PACKET), Internet datagram (since Linux
2.4.27/2.6.8), netlink (since Linux 2.6.22), and UNIX datagram
(since Linux 3.4) sockets: return the real length of the packet
or datagram, even when it was longer than the passed buffer."
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch reverts commit f9d1ce8f81 ("ieee802154: fix netns settings").
The lowpan interface need to be created inside the net namespace where
the wpan interface is available. The wpan namespace can be changed only
by nl802154 before. Without this patch it's not possible to create a
lowpan interface for a wpan interface which isn't inside init_net
namespace.
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds netns support for 802.15.4 subsystem. Most parts are
copy&pasted from wireless subsystem, it has the identically userspace
API.
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The PAD define should be above the experimental support. We don't care
about if we break userspace in experimental stuff but PAD is part of the
existing UAPI.
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Stefan Schmidt<stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch adds a missing check to handle short address parsing for
802.15.4 6LoWPAN only.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This patch removes a double unlock case to accessing neighbour private
data.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
SMP does ECB crypto on stack buffers. This is complicated and
fragile, and it will not work if the stack is virtually allocated.
Switch to the crypto_cipher interface, which is simpler and safer.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Tested-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Changed the configuration to support 64bit instead of 32bit
this in order to offload the driver from handling a wraparound.
Signed-off-by: Yaniv Machani <yanivma@ti.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The flag should be cleaned along with other scan operation variables.
This was missing at some places.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We will derive sta_priv at the beginning of suspend handler.
This will be useful for next patch in this series.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
RT_TRACE does not add a newline to the end of a message and always
emits at KERN_DEBUG so these are susceptible to message interleaving
from other processes without the newline.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This debugging macro can expand to a lot of code.
Make it a function to reduce code size.
(x86-64 defconfig w/ all rtlwifi drivers and allyesconfig)
$ size drivers/net/wireless/realtek/rtlwifi/built-in.o*
text data bss dec hex filename
900083 200499 1907 1102489 10d299 drivers/net/wireless/realtek/rtlwifi/built-in.o.defconfig.new
1113597 200499 1907 1316003 1414a3 drivers/net/wireless/realtek/rtlwifi/built-in.o.defconfig.old
1746879 453503 8512 2208894 21b47e drivers/net/wireless/realtek/rtlwifi/built-in.o.new
2051965 503311 8512 2563788 271ecc drivers/net/wireless/realtek/rtlwifi/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
USB urbs will return with a status != 0 when rmmod'ing the driver. No
need to fill the log with messages from rtl8xxxu_int_complete()
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
reg_eac and reg_ecc are only used if candidate is bigger than 0, and in
that case new values will be given to them. Removing the unused
assignments.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
* SAR BIOS implementation
* some work on debugging capabilities
* added support for GCMP encryption
* data path rework in preparation for new HW
* some cleanup to remove transport dependency on mac80211
* support for MSIx in preparation for new HW
* lots of work in preparation for HW support (9000 and a000 series)
* general cleanups
* general bugfixes
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Merge tag 'iwlwifi-next-for-kalle-2016-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
* work on DQA continued
* SAR BIOS implementation
* some work on debugging capabilities
* added support for GCMP encryption
* data path rework in preparation for new HW
* some cleanup to remove transport dependency on mac80211
* support for MSIx in preparation for new HW
* lots of work in preparation for HW support (9000 and a000 series)
* general cleanups
* general bugfixes
* beacon report (for radio measurement) support in cfg80211/mac80211
* hwsim: allow wmediumd in namespaces
* mac80211: extend 160MHz workaround to CSA IEs
* mesh: properly encrypt group-addressed privacy action frames
* mesh: allow setting peer AID
* first steps for MU-MIMO monitor mode
* along with various other cleanups and improvements
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Merge tag 'mac80211-next-for-davem-2016-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
====================
One more set of new features:
* beacon report (for radio measurement) support in cfg80211/mac80211
* hwsim: allow wmediumd in namespaces
* mac80211: extend 160MHz workaround to CSA IEs
* mesh: properly encrypt group-addressed privacy action frames
* mesh: allow setting peer AID
* first steps for MU-MIMO monitor mode
* along with various other cleanups and improvements
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove .owner field since calls to module_platform_driver() will
set it automatically.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Conflicts:
drivers/net/ethernet/mellanox/mlx5/core/en.h
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
drivers/net/usb/r8152.c
All three conflicts were overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) All users of AF_PACKET's fanout feature want a symmetric packet
header hash for load balancing purposes, so give it to them.
2) Fix vlan state synchronization in e1000e, from Jarod Wilson.
3) Use correct socket pointer in ip_skb_dst_mtu(), from Shmulik
Ladkani.
4) mlx5 bug fixes from Mohamad Haj Yahia, Daniel Jurgens, Matthew
Finlay, Rana Shahout, and Shaker Daibes. Mostly to do with
operation timeouts and PCI error handling.
5) Fix checksum handling in mirred packet action, from WANG Cong.
6) Set skb->dev correctly when transmitting in !protect_frames case of
macsec driver, from Daniel Borkmann.
7) Fix MTU calculation in geneve driver, from Haishuang Yan.
8) Missing netif_napi_del() in unregister path of qeth driver, from
Ursula Braun.
9) Handle malformed route netlink messages in decnet properly, from
Vergard Nossum.
10) Memory leak of percpu data in ipv6 routing code, from Martin KaFai
Lau.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
ipv6: Fix mem leak in rt6i_pcpu
net: fix decnet rtnexthop parsing
cxgb4: update latest firmware version supported
net/mlx5: Avoid setting unused var when modifying vport node GUID
bonding: fix enslavement slave link notifications
r8152: fix runtime function for RTL8152
qeth: delete napi struct when removing a qeth device
Revert "fsl/fman: fix error handling"
fsl/fman: fix error handling
cdc_ncm: workaround for EM7455 "silent" data interface
RDS: fix rds_tcp_init() error path
geneve: fix max_mtu setting
net: phy: dp83867: Fix initialization of PHYCR register
enc28j60: Fix race condition in enc28j60 driver
net: stmmac: Fix null-function call in ISR on stmmac1000
tipc: fix nl compat regression for link statistics
net: bcmsysport: Device stats are unsigned long
macsec: set actual real device for xmit when !protect_frames
net_sched: fix mirrored packets checksum
packet: Use symmetric hash for PACKET_FANOUT_HASH.
...
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next,
they are:
1) Don't use userspace datatypes in bridge netfilter code, from
Tobin Harding.
2) Iterate only once over the expectation table when removing the
helper module, instead of once per-netns, from Florian Westphal.
3) Extra sanitization in xt_hook_ops_alloc() to return error in case
we ever pass zero hooks, xt_hook_ops_alloc():
4) Handle NFPROTO_INET from the logging core infrastructure, from
Liping Zhang.
5) Autoload loggers when TRACE target is used from rules, this doesn't
change the behaviour in case the user already selected nfnetlink_log
as preferred way to print tracing logs, also from Liping Zhang.
6) Conntrack slabs with SLAB_HWCACHE_ALIGN to allow rearranging fields
by cache lines, increases the size of entries in 11% per entry.
From Florian Westphal.
7) Skip zone comparison if CONFIG_NF_CONNTRACK_ZONES=n, from Florian.
8) Remove useless defensive check in nf_logger_find_get() from Shivani
Bhardwaj.
9) Remove zone extension as place it in the conntrack object, this is
always include in the hashing and we expect more intensive use of
zones since containers are in place. Also from Florian Westphal.
10) Owner match now works from any namespace, from Eric Bierdeman.
11) Make sure we only reply with TCP reset to TCP traffic from
nf_reject_ipv4, patch from Liping Zhang.
12) Introduce --nflog-size to indicate amount of network packet bytes
that are copied to userspace via log message, from Vishwanath Pai.
This obsoletes --nflog-range that has never worked, it was designed
to achieve this but it has never worked.
13) Introduce generic macros for nf_tables object generation masks.
14) Use generation mask in table, chain and set objects in nf_tables.
This allows fixes interferences with ongoing preparation phase of
the commit protocol and object listings going on at the same time.
This update is introduced in three patches, one per object.
15) Check if the object is active in the next generation for element
deactivation in the rbtree implementation, given that deactivation
happens from the commit phase path we have to observe the future
status of the object.
16) Support for deletion of just added elements in the hash set type.
17) Allow to resize hashtable from /proc entry, not only from the
obscure /sys entry that maps to the module parameter, from Florian
Westphal.
18) Get rid of NFT_BASECHAIN_DISABLED, this code is not exercised
anymore since we tear down the ruleset whenever the netdevice
goes away.
19) Support for matching inverted set lookups, from Arturo Borrero.
20) Simplify the iptables_mangle_hook() by removing a superfluous
extra branch.
21) Introduce ether_addr_equal_masked() and use it from the netfilter
codebase, from Joe Perches.
22) Remove references to "Use netfilter MARK value as routing key"
from the Netfilter Kconfig description given that this toggle
doesn't exists already for 10 years, from Moritz Sichert.
23) Introduce generic NF_INVF() and use it from the xtables codebase,
from Joe Perches.
24) Setting logger to NONE via /proc was not working unless explicit
nul-termination was included in the string. This fixes seems to
leave the former behaviour there, so we don't break backward.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Here are a collection of small fixes: at this time, we've got a
slightly high amount, but all small and trivial fixes, and nothing
scary can be seen there.
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Merge tag 'sound-4.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a collection of small fixes: at this time, we've got a
slightly high amount, but all small and trivial fixes, and nothing
scary can be seen there"
* tag 'sound-4.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
ALSA: hda/realtek: Add Lenovo L460 to docking unit fixup
ALSA: timer: Fix negative queue usage by racy accesses
ASoC: rt5645: fix reg-2f default value.
ASoC: fsl_ssi: Fix number of words per frame for I2S-slave mode
ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift()
ALSA: hda - Add PCI ID for Kabylake-H
ALSA: echoaudio: Fix memory allocation
ASoC: Intel: atom: fix missing breaks that would cause the wrong operation to execute
ALSA: hda - fix read before array start
ASoC: cx20442: set tty->receiver_room in v253_open
ASoC: ak4613: Enable cache usage to fix crashes on resume
ASoC: wm8940: Enable cache usage to fix crashes on resume
ASoC: Intel: Skylake: Initialize module list for Broxton
ASoC: wm5102: Correct supported channels on trace compressed DAI
ASoC: wm5110: Add missing route from OUT3R to SYSCLK
ASoC: rt5670: fix HP Playback Volume control
ASoC: hdmi-codec: select CONFIG_HDMI
ASoC: davinci-mcasp: Fix dra7 DMA offset when using CFG port
ASoC: hdac_hdmi: Fix potential NULL dereference
ASoC: ak4613: Remove owner assignment from platform_driver
...
A single fix this time, closing a window where ioctl args are fetched twice.
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Merge tag 'chrome-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform
Pull chrome platform fix from Olof Johansson:
"A single fix this time, closing a window where ioctl args are fetched
twice"
* tag 'chrome-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
platform/chrome: cros_ec_dev - double fetch bug in ioctl
Previously, mesh power management functionality works only with kernel
MPM. Because user space MPM did not report mesh peer AID to kernel,
the kernel could not identify the bit in TIM element. So this patch
adds mesh peer AID setting API.
Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Continuing the workaround implemented in commit 23665aaf91
("mac80211: Interoperability workaround for 80+80 and 160 MHz channels")
use the same code to parse the Wide Bandwidth Channel Switch element
by converting to VHT Operation element since the spec also just refers
to that for parsing semantics, particularly with the workaround.
While at it, remove some dead code - the IEEE80211_STA_DISABLE_40MHZ
flag can never be set at this point since it's checked earlier and the
wide_bw_chansw_ie pointer is set to NULL if it's set.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add the following to support beacon report radio measurement
with the measurement mode field set to passive or active:
1. Propagate the required scan duration to the device
2. Report the scan start time (in terms of TSF)
3. Report each BSS's detection time (also in terms of TSF)
TSF times refer to the BSS that the interface that requested the
scan is connected to.
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
[changed ath9k/10k, at76c59x-usb, iwlegacy, wl1251 and wlcore to match
the new API]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Beacon report radio measurement requires reporting observed BSSs
on the channels specified in the beacon request. If the measurement
mode is set to passive or active, it requires actually performing a
scan (passive or active, accordingly), and reporting the time that
the scan was started and the time each beacon/probe was received
(both in terms of TSF of the BSS of the requesting AP). If the
request mode is table, this information is optional.
In addition, the radio measurement request specifies the channel
dwell time for the measurement.
In order to use scan for beacon report when the mode is active or
passive, add a parameter to scan request that specifies the
channel dwell time, and add scan start time and beacon received time
to scan results information.
Supporting beacon report is required for Multi Band Operation (MBO).
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add radar_detect_widths to the interface combination that allows
concurrent P2P Device dedicated interface and AP interfaces, to enable
testing of radar detection when P2P Device interface is used.
Clear the radar_detect_widths in case of multi channel contexts
as this is not currently supported.
As radar_detect_widths are now supported in all combinations,
remove the hwsim_if_dfs_limits definition since it is no longer
needed.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
add API to support VHT MU-MIMO air sniffer.
in MU-MIMO there are parallel frames on the air while the HW
has only one RX.
add the capability to sniff one of the MU-MIMO parallel frames by
giving the sniffer additional information so it'll know which
of the parallel frames it shall follow.
Add attribute - NL80211_ATTR_MU_MIMO_GROUP_DATA - for getting
a MU-MIMO groupID in order to monitor packets from that group
using VHT MU-MIMO.
And add attribute -NL80211_ATTR_MU_MIMO_FOLLOW_ADDR - for passing
MAC address to monitor mode.
that option will be used by VHT MU-MIMO air sniffer to follow a
station according to it's MAC address using VHT MU-MIMO.
Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The current implementation of handling ADDBA Request while a session
is already active with the peer is wrong - in case the peer is using
the existing session's dialog token this should be treated as update
to the session, which can update the timeout value.
We don't really have a good way of supporting that, so reject, but
implement the required behaviour in the spec of "Even if the updated
ADDBA Request frame is not accepted, the original Block ACK setup
remains active." (802.11-2012 10.5.4)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The call hash table is now no longer used as calls are looked up directly
by channel slot on the connection, so kill it off.
Signed-off-by: David Howells <dhowells@redhat.com>
Move to using RCU access to a peer's service connection tree when routing
an incoming packet. This is done using a seqlock to trigger retrying of
the tree walk if a change happened.
Further, we no longer get a ref on the connection looked up in the
data_ready handler unless we queue the connection's work item - and then
only if the refcount > 0.
Note that I'm avoiding the use of a hash table for service connections
because each service connection is addressed by a 62-bit number
(constructed from epoch and connection ID >> 2) that would allow the client
to engage in bucket stuffing, given knowledge of the hash algorithm.
Peers, however, are hashed as the network address is less controllable by
the client. The total number of peers will also be limited in a future
commit.
Signed-off-by: David Howells <dhowells@redhat.com>
Data structures that are used both with and without RCU protection
are difficult to write in a sparse-clean manner. If you mark the
relevant pointers with __rcu, sparse will complain about all non-RCU
uses, but if you don't mark those pointers, sparse will complain about
all RCU uses.
This commit therefore suppresses sparse warnings for rcu_dereference_raw(),
allowing mixed-protection data structures to avoid these warnings.
Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Implement an RCU-safe variant of rb_replace_node() and rearrange
rb_replace_node() to do things in the same order.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Overhaul the usage count accounting for the rxrpc_connection struct to make
it easier to implement RCU access from the data_ready handler.
The problem is that currently we're using a lock to prevent the garbage
collector from trying to clean up a connection that we're contemplating
unidling. We could just stick incoming packets on the connection we find,
but we've then got a problem that we may race when dispatching a work item
to process it as we need to give that a ref to prevent the rxrpc_connection
struct from disappearing in the meantime.
Further, incoming packets may get discarded if attached to an
rxrpc_connection struct that is going away. Whilst this is not a total
disaster - the client will presumably resend - it would delay processing of
the call. This would affect the AFS client filesystem's service manager
operation.
To this end:
(1) We now maintain an extra count on the connection usage count whilst it
is on the connection list. This mean it is not in use when its
refcount is 1.
(2) When trying to reuse an old connection, we only increment the refcount
if it is greater than 0. If it is 0, we replace it in the tree with a
new candidate connection.
(3) Two connection flags are added to indicate whether or not a connection
is in the local's client connection tree (used by sendmsg) or the
peer's service connection tree (used by data_ready). This makes sure
that we don't try and remove a connection if it got replaced.
The flags are tested under lock with the removal operation to prevent
the reaper from killing the rxrpc_connection struct whilst someone
else is trying to effect a replacement.
This could probably be alleviated by using memory barriers between the
flag set/test and the rb_tree ops. The rb_tree op would still need to
be under the lock, however.
(4) When trying to reap an old connection, we try to flip the usage count
from 1 to 0. If it's not 1 at that point, then it must've come back
to life temporarily and we ignore it.
Signed-off-by: David Howells <dhowells@redhat.com>
